id int64 1 36.7k | label int64 0 1 | bug_url stringlengths 91 134 | bug_function stringlengths 13 72.7k | functions stringlengths 17 79.2k |
|---|---|---|---|---|
25,901 | 0 | https://github.com/openssl/openssl/blob/8fa6a40be2935ca109a28cc43d28cd27051ada01/crypto/x509/x509_vfy.c/#L167 | int X509_verify_cert(X509_STORE_CTX *ctx)
{
X509 *x,*xtmp,*chain_ss=NULL;
X509_NAME *xn;
int bad_chain = 0;
X509_VERIFY_PARAM *param = ctx->param;
int depth,i,ok=0;
int num;
int (*cb)(int xok,X509_STORE_CTX *xctx);
STACK_OF(X509) *sktmp=NULL;
if (ctx->cert == NULL)
{
X509err(X509_F_X509_VERIFY_CERT,X509_R_NO_CERT_SET_FOR_US_TO_VERIFY);
return -1;
}
cb=ctx->verify_cb;
if (ctx->chain == NULL)
{
if ( ((ctx->chain=sk_X509_new_null()) == NULL) ||
(!sk_X509_push(ctx->chain,ctx->cert)))
{
X509err(X509_F_X509_VERIFY_CERT,ERR_R_MALLOC_FAILURE);
goto end;
}
CRYPTO_add(&ctx->cert->references,1,CRYPTO_LOCK_X509);
ctx->last_untrusted=1;
}
if (ctx->untrusted != NULL
&& (sktmp=sk_X509_dup(ctx->untrusted)) == NULL)
{
X509err(X509_F_X509_VERIFY_CERT,ERR_R_MALLOC_FAILURE);
goto end;
}
num=sk_X509_num(ctx->chain);
x=sk_X509_value(ctx->chain,num-1);
depth=param->depth;
for (;;)
{
if (depth < num) break;
xn=X509_get_issuer_name(x);
if (ctx->check_issued(ctx, x,x)) break;
if (ctx->untrusted != NULL)
{
xtmp=find_issuer(ctx, sktmp,x);
if (xtmp != NULL)
{
if (!sk_X509_push(ctx->chain,xtmp))
{
X509err(X509_F_X509_VERIFY_CERT,ERR_R_MALLOC_FAILURE);
goto end;
}
CRYPTO_add(&xtmp->references,1,CRYPTO_LOCK_X509);
sk_X509_delete_ptr(sktmp,xtmp);
ctx->last_untrusted++;
x=xtmp;
num++;
continue;
}
}
break;
}
i=sk_X509_num(ctx->chain);
x=sk_X509_value(ctx->chain,i-1);
xn = X509_get_subject_name(x);
if (ctx->check_issued(ctx, x, x))
{
if (sk_X509_num(ctx->chain) == 1)
{
ok = ctx->get_issuer(&xtmp, ctx, x);
if ((ok <= 0) || X509_cmp(x, xtmp))
{
ctx->error=X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT;
ctx->current_cert=x;
ctx->error_depth=i-1;
if (ok == 1) X509_free(xtmp);
bad_chain = 1;
ok=cb(0,ctx);
if (!ok) goto end;
}
else
{
X509_free(x);
x = xtmp;
sk_X509_set(ctx->chain, i - 1, x);
ctx->last_untrusted=0;
}
}
else
{
chain_ss=sk_X509_pop(ctx->chain);
ctx->last_untrusted--;
num--;
x=sk_X509_value(ctx->chain,num-1);
}
}
for (;;)
{
if (depth < num) break;
xn=X509_get_issuer_name(x);
if (ctx->check_issued(ctx,x,x)) break;
ok = ctx->get_issuer(&xtmp, ctx, x);
if (ok < 0) return ok;
if (ok == 0) break;
x = xtmp;
if (!sk_X509_push(ctx->chain,x))
{
X509_free(xtmp);
X509err(X509_F_X509_VERIFY_CERT,ERR_R_MALLOC_FAILURE);
return 0;
}
num++;
}
xn=X509_get_issuer_name(x);
if (!ctx->check_issued(ctx,x,x))
{
if ((chain_ss == NULL) || !ctx->check_issued(ctx, x, chain_ss))
{
if (ctx->last_untrusted >= num)
ctx->error=X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT_LOCALLY;
else
ctx->error=X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT;
ctx->current_cert=x;
}
else
{
sk_X509_push(ctx->chain,chain_ss);
num++;
ctx->last_untrusted=num;
ctx->current_cert=chain_ss;
ctx->error=X509_V_ERR_SELF_SIGNED_CERT_IN_CHAIN;
chain_ss=NULL;
}
ctx->error_depth=num-1;
bad_chain = 1;
ok=cb(0,ctx);
if (!ok) goto end;
}
ok = check_chain_extensions(ctx);
if (!ok) goto end;
if (param->trust > 0) ok = check_trust(ctx);
if (!ok) goto end;
X509_get_pubkey_parameters(NULL,ctx->chain);
ok = ctx->check_revocation(ctx);
if(!ok) goto end;
if (ctx->verify != NULL)
ok=ctx->verify(ctx);
else
ok=internal_verify(ctx);
if(!ok) goto end;
if (!bad_chain && (ctx->param->flags & X509_V_FLAG_POLICY_CHECK))
ok = ctx->check_policy(ctx);
if(!ok) goto end;
if (0)
{
end:
X509_get_pubkey_parameters(NULL,ctx->chain);
}
if (sktmp != NULL) sk_X509_free(sktmp);
if (chain_ss != NULL) X509_free(chain_ss);
return ok;
} | ['int X509_verify_cert(X509_STORE_CTX *ctx)\n\t{\n\tX509 *x,*xtmp,*chain_ss=NULL;\n\tX509_NAME *xn;\n\tint bad_chain = 0;\n\tX509_VERIFY_PARAM *param = ctx->param;\n\tint depth,i,ok=0;\n\tint num;\n\tint (*cb)(int xok,X509_STORE_CTX *xctx);\n\tSTACK_OF(X509) *sktmp=NULL;\n\tif (ctx->cert == NULL)\n\t\t{\n\t\tX509err(X509_F_X509_VERIFY_CERT,X509_R_NO_CERT_SET_FOR_US_TO_VERIFY);\n\t\treturn -1;\n\t\t}\n\tcb=ctx->verify_cb;\n\tif (ctx->chain == NULL)\n\t\t{\n\t\tif (\t((ctx->chain=sk_X509_new_null()) == NULL) ||\n\t\t\t(!sk_X509_push(ctx->chain,ctx->cert)))\n\t\t\t{\n\t\t\tX509err(X509_F_X509_VERIFY_CERT,ERR_R_MALLOC_FAILURE);\n\t\t\tgoto end;\n\t\t\t}\n\t\tCRYPTO_add(&ctx->cert->references,1,CRYPTO_LOCK_X509);\n\t\tctx->last_untrusted=1;\n\t\t}\n\tif (ctx->untrusted != NULL\n\t && (sktmp=sk_X509_dup(ctx->untrusted)) == NULL)\n\t\t{\n\t\tX509err(X509_F_X509_VERIFY_CERT,ERR_R_MALLOC_FAILURE);\n\t\tgoto end;\n\t\t}\n\tnum=sk_X509_num(ctx->chain);\n\tx=sk_X509_value(ctx->chain,num-1);\n\tdepth=param->depth;\n\tfor (;;)\n\t\t{\n\t\tif (depth < num) break;\n\t\txn=X509_get_issuer_name(x);\n\t\tif (ctx->check_issued(ctx, x,x)) break;\n\t\tif (ctx->untrusted != NULL)\n\t\t\t{\n\t\t\txtmp=find_issuer(ctx, sktmp,x);\n\t\t\tif (xtmp != NULL)\n\t\t\t\t{\n\t\t\t\tif (!sk_X509_push(ctx->chain,xtmp))\n\t\t\t\t\t{\n\t\t\t\t\tX509err(X509_F_X509_VERIFY_CERT,ERR_R_MALLOC_FAILURE);\n\t\t\t\t\tgoto end;\n\t\t\t\t\t}\n\t\t\t\tCRYPTO_add(&xtmp->references,1,CRYPTO_LOCK_X509);\n\t\t\t\tsk_X509_delete_ptr(sktmp,xtmp);\n\t\t\t\tctx->last_untrusted++;\n\t\t\t\tx=xtmp;\n\t\t\t\tnum++;\n\t\t\t\tcontinue;\n\t\t\t\t}\n\t\t\t}\n\t\tbreak;\n\t\t}\n\ti=sk_X509_num(ctx->chain);\n\tx=sk_X509_value(ctx->chain,i-1);\n\txn = X509_get_subject_name(x);\n\tif (ctx->check_issued(ctx, x, x))\n\t\t{\n\t\tif (sk_X509_num(ctx->chain) == 1)\n\t\t\t{\n\t\t\tok = ctx->get_issuer(&xtmp, ctx, x);\n\t\t\tif ((ok <= 0) || X509_cmp(x, xtmp))\n\t\t\t\t{\n\t\t\t\tctx->error=X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT;\n\t\t\t\tctx->current_cert=x;\n\t\t\t\tctx->error_depth=i-1;\n\t\t\t\tif (ok == 1) X509_free(xtmp);\n\t\t\t\tbad_chain = 1;\n\t\t\t\tok=cb(0,ctx);\n\t\t\t\tif (!ok) goto end;\n\t\t\t\t}\n\t\t\telse\n\t\t\t\t{\n\t\t\t\tX509_free(x);\n\t\t\t\tx = xtmp;\n\t\t\t\tsk_X509_set(ctx->chain, i - 1, x);\n\t\t\t\tctx->last_untrusted=0;\n\t\t\t\t}\n\t\t\t}\n\t\telse\n\t\t\t{\n\t\t\tchain_ss=sk_X509_pop(ctx->chain);\n\t\t\tctx->last_untrusted--;\n\t\t\tnum--;\n\t\t\tx=sk_X509_value(ctx->chain,num-1);\n\t\t\t}\n\t\t}\n\tfor (;;)\n\t\t{\n\t\tif (depth < num) break;\n\t\txn=X509_get_issuer_name(x);\n\t\tif (ctx->check_issued(ctx,x,x)) break;\n\t\tok = ctx->get_issuer(&xtmp, ctx, x);\n\t\tif (ok < 0) return ok;\n\t\tif (ok == 0) break;\n\t\tx = xtmp;\n\t\tif (!sk_X509_push(ctx->chain,x))\n\t\t\t{\n\t\t\tX509_free(xtmp);\n\t\t\tX509err(X509_F_X509_VERIFY_CERT,ERR_R_MALLOC_FAILURE);\n\t\t\treturn 0;\n\t\t\t}\n\t\tnum++;\n\t\t}\n\txn=X509_get_issuer_name(x);\n\tif (!ctx->check_issued(ctx,x,x))\n\t\t{\n\t\tif ((chain_ss == NULL) || !ctx->check_issued(ctx, x, chain_ss))\n\t\t\t{\n\t\t\tif (ctx->last_untrusted >= num)\n\t\t\t\tctx->error=X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT_LOCALLY;\n\t\t\telse\n\t\t\t\tctx->error=X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT;\n\t\t\tctx->current_cert=x;\n\t\t\t}\n\t\telse\n\t\t\t{\n\t\t\tsk_X509_push(ctx->chain,chain_ss);\n\t\t\tnum++;\n\t\t\tctx->last_untrusted=num;\n\t\t\tctx->current_cert=chain_ss;\n\t\t\tctx->error=X509_V_ERR_SELF_SIGNED_CERT_IN_CHAIN;\n\t\t\tchain_ss=NULL;\n\t\t\t}\n\t\tctx->error_depth=num-1;\n\t\tbad_chain = 1;\n\t\tok=cb(0,ctx);\n\t\tif (!ok) goto end;\n\t\t}\n\tok = check_chain_extensions(ctx);\n\tif (!ok) goto end;\n\tif (param->trust > 0) ok = check_trust(ctx);\n\tif (!ok) goto end;\n\tX509_get_pubkey_parameters(NULL,ctx->chain);\n\tok = ctx->check_revocation(ctx);\n\tif(!ok) goto end;\n\tif (ctx->verify != NULL)\n\t\tok=ctx->verify(ctx);\n\telse\n\t\tok=internal_verify(ctx);\n\tif(!ok) goto end;\n\tif (!bad_chain && (ctx->param->flags & X509_V_FLAG_POLICY_CHECK))\n\t\tok = ctx->check_policy(ctx);\n\tif(!ok) goto end;\n\tif (0)\n\t\t{\nend:\n\t\tX509_get_pubkey_parameters(NULL,ctx->chain);\n\t\t}\n\tif (sktmp != NULL) sk_X509_free(sktmp);\n\tif (chain_ss != NULL) X509_free(chain_ss);\n\treturn ok;\n\t}', 'int sk_num(const STACK *st)\n{\n\tif(st == NULL) return -1;\n\treturn st->num;\n}', 'char *sk_value(const STACK *st, int i)\n{\n\tif(!st || (i < 0) || (i >= st->num)) return NULL;\n\treturn st->data[i];\n}', 'X509_NAME *X509_get_issuer_name(X509 *a)\n\t{\n\treturn(a->cert_info->issuer);\n\t}', 'int sk_push(STACK *st, char *data)\n\t{\n\treturn(sk_insert(st,data,st->num));\n\t}', 'int CRYPTO_add_lock(int *pointer, int amount, int type, const char *file,\n\t int line)\n\t{\n\tint ret = 0;\n\tif (add_lock_callback != NULL)\n\t\t{\n#ifdef LOCK_DEBUG\n\t\tint before= *pointer;\n#endif\n\t\tret=add_lock_callback(pointer,amount,type,file,line);\n#ifdef LOCK_DEBUG\n\t\tfprintf(stderr,"ladd:%08lx:%2d+%2d->%2d %-18s %s:%d\\n",\n\t\t\tCRYPTO_thread_id(),\n\t\t\tbefore,amount,ret,\n\t\t\tCRYPTO_get_lock_name(type),\n\t\t\tfile,line);\n#endif\n\t\t}\n\telse\n\t\t{\n\t\tCRYPTO_lock(CRYPTO_LOCK|CRYPTO_WRITE,type,file,line);\n\t\tret= *pointer+amount;\n#ifdef LOCK_DEBUG\n\t\tfprintf(stderr,"ladd:%08lx:%2d+%2d->%2d %-18s %s:%d\\n",\n\t\t\tCRYPTO_thread_id(),\n\t\t\t*pointer,amount,ret,\n\t\t\tCRYPTO_get_lock_name(type),\n\t\t\tfile,line);\n#endif\n\t\t*pointer=ret;\n\t\tCRYPTO_lock(CRYPTO_UNLOCK|CRYPTO_WRITE,type,file,line);\n\t\t}\n\treturn(ret);\n\t}', 'void CRYPTO_lock(int mode, int type, const char *file, int line)\n\t{\n#ifdef LOCK_DEBUG\n\t\t{\n\t\tchar *rw_text,*operation_text;\n\t\tif (mode & CRYPTO_LOCK)\n\t\t\toperation_text="lock ";\n\t\telse if (mode & CRYPTO_UNLOCK)\n\t\t\toperation_text="unlock";\n\t\telse\n\t\t\toperation_text="ERROR ";\n\t\tif (mode & CRYPTO_READ)\n\t\t\trw_text="r";\n\t\telse if (mode & CRYPTO_WRITE)\n\t\t\trw_text="w";\n\t\telse\n\t\t\trw_text="ERROR";\n\t\tfprintf(stderr,"lock:%08lx:(%s)%s %-18s %s:%d\\n",\n\t\t\tCRYPTO_thread_id(), rw_text, operation_text,\n\t\t\tCRYPTO_get_lock_name(type), file, line);\n\t\t}\n#endif\n\tif (type < 0)\n\t\t{\n\t\tif (dynlock_lock_callback != NULL)\n\t\t\t{\n\t\t\tstruct CRYPTO_dynlock_value *pointer\n\t\t\t\t= CRYPTO_get_dynlock_value(type);\n\t\t\tOPENSSL_assert(pointer != NULL);\n\t\t\tdynlock_lock_callback(mode, pointer, file, line);\n\t\t\tCRYPTO_destroy_dynlockid(type);\n\t\t\t}\n\t\t}\n\telse\n\t\tif (locking_callback != NULL)\n\t\t\tlocking_callback(mode,type,file,line);\n\t}', 'char *sk_delete_ptr(STACK *st, char *p)\n\t{\n\tint i;\n\tfor (i=0; i<st->num; i++)\n\t\tif (st->data[i] == p)\n\t\t\treturn(sk_delete(st,i));\n\treturn(NULL);\n\t}'] |
25,902 | 0 | https://github.com/openssl/openssl/blob/eedb9db9afd531e9dc69a33b73c7e1cd27153b0b/ssl/ssl_rsa.c/#L303 | int SSL_CTX_use_certificate(SSL_CTX *ctx, X509 *x)
{
int rv;
if (x == NULL) {
SSLerr(SSL_F_SSL_CTX_USE_CERTIFICATE, ERR_R_PASSED_NULL_PARAMETER);
return (0);
}
rv = ssl_security_cert(NULL, ctx, x, 0, 1);
if (rv != 1) {
SSLerr(SSL_F_SSL_CTX_USE_CERTIFICATE, rv);
return 0;
}
return (ssl_set_cert(ctx->cert, x));
} | ['int SSL_CTX_use_certificate(SSL_CTX *ctx, X509 *x)\n{\n int rv;\n if (x == NULL) {\n SSLerr(SSL_F_SSL_CTX_USE_CERTIFICATE, ERR_R_PASSED_NULL_PARAMETER);\n return (0);\n }\n rv = ssl_security_cert(NULL, ctx, x, 0, 1);\n if (rv != 1) {\n SSLerr(SSL_F_SSL_CTX_USE_CERTIFICATE, rv);\n return 0;\n }\n return (ssl_set_cert(ctx->cert, x));\n}'] |
25,903 | 0 | https://github.com/openssl/openssl/blob/0185803cc224c8d88ca39ae07c296a4f1854e478/crypto/bio/b_print.c/#L731 | static void
doapr_outch(
char **sbuffer,
char **buffer,
size_t *currlen,
size_t *maxlen,
int c)
{
assert(*sbuffer != NULL || buffer != NULL);
if (buffer) {
while (*currlen >= *maxlen) {
if (*buffer == NULL) {
if (*maxlen == 0)
*maxlen = 1024;
*buffer = OPENSSL_malloc(*maxlen);
if (*currlen > 0) {
assert(*sbuffer != NULL);
memcpy(*buffer, *sbuffer, *currlen);
}
*sbuffer = NULL;
} else {
*maxlen += 1024;
*buffer = OPENSSL_realloc(*buffer, *maxlen);
}
}
assert(*sbuffer != NULL || *buffer != NULL);
}
if (*currlen < *maxlen) {
if (*sbuffer)
(*sbuffer)[(*currlen)++] = (char)c;
else
(*buffer)[(*currlen)++] = (char)c;
}
return;
} | ['static void\ndoapr_outch(\n char **sbuffer,\n char **buffer,\n size_t *currlen,\n size_t *maxlen,\n int c)\n{\n assert(*sbuffer != NULL || buffer != NULL);\n if (buffer) {\n\twhile (*currlen >= *maxlen) {\n\t if (*buffer == NULL) {\n\t\tif (*maxlen == 0)\n\t\t *maxlen = 1024;\n\t\t*buffer = OPENSSL_malloc(*maxlen);\n\t\tif (*currlen > 0) {\n\t\t assert(*sbuffer != NULL);\n\t\t memcpy(*buffer, *sbuffer, *currlen);\n\t\t}\n\t\t*sbuffer = NULL;\n\t } else {\n\t\t*maxlen += 1024;\n\t\t*buffer = OPENSSL_realloc(*buffer, *maxlen);\n\t }\n\t}\n\tassert(*sbuffer != NULL || *buffer != NULL);\n }\n if (*currlen < *maxlen) {\n\tif (*sbuffer)\n\t (*sbuffer)[(*currlen)++] = (char)c;\n\telse\n\t (*buffer)[(*currlen)++] = (char)c;\n }\n return;\n}', 'void *CRYPTO_malloc(int num, const char *file, int line)\n\t{\n\tvoid *ret = NULL;\n\textern unsigned char cleanse_ctr;\n\tif (num < 0) return NULL;\n\tallow_customize = 0;\n\tif (malloc_debug_func != NULL)\n\t\t{\n\t\tallow_customize_debug = 0;\n\t\tmalloc_debug_func(NULL, num, file, line, 0);\n\t\t}\n\tret = malloc_ex_func(num,file,line);\n#ifdef LEVITTE_DEBUG_MEM\n\tfprintf(stderr, "LEVITTE_DEBUG_MEM: > 0x%p (%d)\\n", ret, num);\n#endif\n\tif (malloc_debug_func != NULL)\n\t\tmalloc_debug_func(ret, num, file, line, 1);\n if(ret && (num > 2048))\n ((unsigned char *)ret)[0] = cleanse_ctr;\n\treturn ret;\n\t}'] |
25,904 | 0 | https://github.com/openssl/openssl/blob/ea32151f7b9353f8906188d007c6893704ac17bb/crypto/err/err.c/#L735 | void ERR_add_error_vdata(int num, va_list args)
{
int i, n, s;
char *str, *p, *a;
s = 80;
str = OPENSSL_malloc(s + 1);
if (str == NULL)
return;
str[0] = '\0';
n = 0;
for (i = 0; i < num; i++) {
a = va_arg(args, char *);
if (a != NULL) {
n += strlen(a);
if (n > s) {
s = n + 20;
p = OPENSSL_realloc(str, s + 1);
if (p == NULL) {
OPENSSL_free(str);
return;
}
str = p;
}
OPENSSL_strlcat(str, a, (size_t)s + 1);
}
}
ERR_set_error_data(str, ERR_TXT_MALLOCED | ERR_TXT_STRING);
} | ["void ERR_add_error_vdata(int num, va_list args)\n{\n int i, n, s;\n char *str, *p, *a;\n s = 80;\n str = OPENSSL_malloc(s + 1);\n if (str == NULL)\n return;\n str[0] = '\\0';\n n = 0;\n for (i = 0; i < num; i++) {\n a = va_arg(args, char *);\n if (a != NULL) {\n n += strlen(a);\n if (n > s) {\n s = n + 20;\n p = OPENSSL_realloc(str, s + 1);\n if (p == NULL) {\n OPENSSL_free(str);\n return;\n }\n str = p;\n }\n OPENSSL_strlcat(str, a, (size_t)s + 1);\n }\n }\n ERR_set_error_data(str, ERR_TXT_MALLOCED | ERR_TXT_STRING);\n}", 'void *CRYPTO_malloc(size_t num, const char *file, int line)\n{\n void *ret = NULL;\n if (malloc_impl != NULL && malloc_impl != CRYPTO_malloc)\n return malloc_impl(num, file, line);\n if (num <= 0)\n return NULL;\n allow_customize = 0;\n#ifndef OPENSSL_NO_CRYPTO_MDEBUG\n if (call_malloc_debug) {\n CRYPTO_mem_debug_malloc(NULL, num, 0, file, line);\n ret = malloc(num);\n CRYPTO_mem_debug_malloc(ret, num, 1, file, line);\n } else {\n ret = malloc(num);\n }\n#else\n osslargused(file); osslargused(line);\n ret = malloc(num);\n#endif\n return ret;\n}', 'void *CRYPTO_realloc(void *str, size_t num, const char *file, int line)\n{\n if (realloc_impl != NULL && realloc_impl != &CRYPTO_realloc)\n return realloc_impl(str, num, file, line);\n if (str == NULL)\n return CRYPTO_malloc(num, file, line);\n if (num == 0) {\n CRYPTO_free(str, file, line);\n return NULL;\n }\n allow_customize = 0;\n#ifndef OPENSSL_NO_CRYPTO_MDEBUG\n if (call_malloc_debug) {\n void *ret;\n CRYPTO_mem_debug_realloc(str, NULL, num, 0, file, line);\n ret = realloc(str, num);\n CRYPTO_mem_debug_realloc(str, ret, num, 1, file, line);\n return ret;\n }\n#else\n osslargused(file); osslargused(line);\n#endif\n return realloc(str, num);\n}', 'void CRYPTO_free(void *str, const char *file, int line)\n{\n if (free_impl != NULL && free_impl != &CRYPTO_free) {\n free_impl(str, file, line);\n return;\n }\n#ifndef OPENSSL_NO_CRYPTO_MDEBUG\n if (call_malloc_debug) {\n CRYPTO_mem_debug_free(str, 0, file, line);\n free(str);\n CRYPTO_mem_debug_free(str, 1, file, line);\n } else {\n free(str);\n }\n#else\n free(str);\n#endif\n}'] |
25,905 | 0 | https://github.com/libav/libav/blob/5e1840622ce6e41c57d9c407604863d3f3dcc3ae/libavcodec/h264_slice.c/#L642 | static void implicit_weight_table(const H264Context *h, H264SliceContext *sl, int field)
{
int ref0, ref1, i, cur_poc, ref_start, ref_count0, ref_count1;
for (i = 0; i < 2; i++) {
sl->pwt.luma_weight_flag[i] = 0;
sl->pwt.chroma_weight_flag[i] = 0;
}
if (field < 0) {
if (h->picture_structure == PICT_FRAME) {
cur_poc = h->cur_pic_ptr->poc;
} else {
cur_poc = h->cur_pic_ptr->field_poc[h->picture_structure - 1];
}
if (sl->ref_count[0] == 1 && sl->ref_count[1] == 1 && !FRAME_MBAFF(h) &&
sl->ref_list[0][0].poc + sl->ref_list[1][0].poc == 2 * cur_poc) {
sl->pwt.use_weight = 0;
sl->pwt.use_weight_chroma = 0;
return;
}
ref_start = 0;
ref_count0 = sl->ref_count[0];
ref_count1 = sl->ref_count[1];
} else {
cur_poc = h->cur_pic_ptr->field_poc[field];
ref_start = 16;
ref_count0 = 16 + 2 * sl->ref_count[0];
ref_count1 = 16 + 2 * sl->ref_count[1];
}
sl->pwt.use_weight = 2;
sl->pwt.use_weight_chroma = 2;
sl->pwt.luma_log2_weight_denom = 5;
sl->pwt.chroma_log2_weight_denom = 5;
for (ref0 = ref_start; ref0 < ref_count0; ref0++) {
int poc0 = sl->ref_list[0][ref0].poc;
for (ref1 = ref_start; ref1 < ref_count1; ref1++) {
int w = 32;
if (!sl->ref_list[0][ref0].parent->long_ref && !sl->ref_list[1][ref1].parent->long_ref) {
int poc1 = sl->ref_list[1][ref1].poc;
int td = av_clip_int8(poc1 - poc0);
if (td) {
int tb = av_clip_int8(cur_poc - poc0);
int tx = (16384 + (FFABS(td) >> 1)) / td;
int dist_scale_factor = (tb * tx + 32) >> 8;
if (dist_scale_factor >= -64 && dist_scale_factor <= 128)
w = 64 - dist_scale_factor;
}
}
if (field < 0) {
sl->pwt.implicit_weight[ref0][ref1][0] =
sl->pwt.implicit_weight[ref0][ref1][1] = w;
} else {
sl->pwt.implicit_weight[ref0][ref1][field] = w;
}
}
}
} | ['static int h264_decode_frame(AVCodecContext *avctx, void *data,\n int *got_frame, AVPacket *avpkt)\n{\n const uint8_t *buf = avpkt->data;\n int buf_size = avpkt->size;\n H264Context *h = avctx->priv_data;\n AVFrame *pict = data;\n int buf_index = 0;\n int ret;\n const uint8_t *new_extradata;\n int new_extradata_size;\n h->flags = avctx->flags;\n h->setup_finished = 0;\nout:\n if (buf_size == 0) {\n H264Picture *out;\n int i, out_idx;\n h->cur_pic_ptr = NULL;\n out = h->delayed_pic[0];\n out_idx = 0;\n for (i = 1;\n h->delayed_pic[i] &&\n !h->delayed_pic[i]->f->key_frame &&\n !h->delayed_pic[i]->mmco_reset;\n i++)\n if (h->delayed_pic[i]->poc < out->poc) {\n out = h->delayed_pic[i];\n out_idx = i;\n }\n for (i = out_idx; h->delayed_pic[i]; i++)\n h->delayed_pic[i] = h->delayed_pic[i + 1];\n if (out) {\n ret = output_frame(h, pict, out->f);\n if (ret < 0)\n return ret;\n *got_frame = 1;\n }\n return buf_index;\n }\n new_extradata_size = 0;\n new_extradata = av_packet_get_side_data(avpkt, AV_PKT_DATA_NEW_EXTRADATA,\n &new_extradata_size);\n if (new_extradata_size > 0 && new_extradata) {\n ret = ff_h264_decode_extradata(new_extradata, new_extradata_size,\n &h->ps, &h->is_avc, &h->nal_length_size,\n avctx->err_recognition, avctx);\n if (ret < 0)\n return ret;\n }\n buf_index = decode_nal_units(h, buf, buf_size);\n if (buf_index < 0)\n return AVERROR_INVALIDDATA;\n if (!h->cur_pic_ptr && h->nal_unit_type == H264_NAL_END_SEQUENCE) {\n buf_size = 0;\n goto out;\n }\n if (!(avctx->flags2 & AV_CODEC_FLAG2_CHUNKS) && !h->cur_pic_ptr) {\n if (avctx->skip_frame >= AVDISCARD_NONREF)\n return 0;\n av_log(avctx, AV_LOG_ERROR, "no frame!\\n");\n return AVERROR_INVALIDDATA;\n }\n if (!(avctx->flags2 & AV_CODEC_FLAG2_CHUNKS) ||\n (h->mb_y >= h->mb_height && h->mb_height)) {\n if (avctx->flags2 & AV_CODEC_FLAG2_CHUNKS)\n decode_postinit(h, 1);\n ff_h264_field_end(h, &h->slice_ctx[0], 0);\n *got_frame = 0;\n if (h->next_output_pic && ((avctx->flags & AV_CODEC_FLAG_OUTPUT_CORRUPT) ||\n h->next_output_pic->recovered)) {\n if (!h->next_output_pic->recovered)\n h->next_output_pic->f->flags |= AV_FRAME_FLAG_CORRUPT;\n ret = output_frame(h, pict, h->next_output_pic->f);\n if (ret < 0)\n return ret;\n *got_frame = 1;\n }\n }\n assert(pict->buf[0] || !*got_frame);\n return get_consumed_bytes(buf_index, buf_size);\n}', 'static int decode_nal_units(H264Context *h, const uint8_t *buf, int buf_size)\n{\n AVCodecContext *const avctx = h->avctx;\n unsigned context_count = 0;\n int nals_needed = 0;\n int i, ret = 0;\n if (!(avctx->flags2 & AV_CODEC_FLAG2_CHUNKS)) {\n h->current_slice = 0;\n if (!h->first_field)\n h->cur_pic_ptr = NULL;\n ff_h264_sei_uninit(&h->sei);\n }\n ret = ff_h2645_packet_split(&h->pkt, buf, buf_size, avctx, h->is_avc,\n h->nal_length_size, avctx->codec_id);\n if (ret < 0) {\n av_log(avctx, AV_LOG_ERROR,\n "Error splitting the input into NAL units.\\n");\n return ret;\n }\n if (avctx->active_thread_type & FF_THREAD_FRAME)\n nals_needed = get_last_needed_nal(h);\n for (i = 0; i < h->pkt.nb_nals; i++) {\n H2645NAL *nal = &h->pkt.nals[i];\n H264SliceContext *sl = &h->slice_ctx[context_count];\n int err;\n if (avctx->skip_frame >= AVDISCARD_NONREF &&\n nal->ref_idc == 0 && nal->type != H264_NAL_SEI)\n continue;\n h->nal_ref_idc = nal->ref_idc;\n h->nal_unit_type = nal->type;\n err = 0;\n switch (nal->type) {\n case H264_NAL_IDR_SLICE:\n idr(h);\n case H264_NAL_SLICE:\n sl->gb = nal->gb;\n if ((err = ff_h264_decode_slice_header(h, sl, nal)))\n break;\n if (sl->redundant_pic_count > 0)\n break;\n if (h->current_slice == 1) {\n if (!(avctx->flags2 & AV_CODEC_FLAG2_CHUNKS))\n decode_postinit(h, i >= nals_needed);\n }\n if ((avctx->skip_frame < AVDISCARD_NONREF || nal->ref_idc) &&\n (avctx->skip_frame < AVDISCARD_BIDIR ||\n sl->slice_type_nos != AV_PICTURE_TYPE_B) &&\n (avctx->skip_frame < AVDISCARD_NONKEY ||\n h->cur_pic_ptr->f->key_frame) &&\n avctx->skip_frame < AVDISCARD_ALL) {\n if (avctx->hwaccel) {\n ret = avctx->hwaccel->decode_slice(avctx, nal->raw_data, nal->raw_size);\n if (ret < 0)\n return ret;\n } else\n context_count++;\n }\n break;\n case H264_NAL_DPA:\n case H264_NAL_DPB:\n case H264_NAL_DPC:\n avpriv_request_sample(avctx, "data partitioning");\n ret = AVERROR(ENOSYS);\n goto end;\n break;\n case H264_NAL_SEI:\n ret = ff_h264_sei_decode(&h->sei, &nal->gb, &h->ps, avctx);\n if (ret < 0 && (h->avctx->err_recognition & AV_EF_EXPLODE))\n goto end;\n break;\n case H264_NAL_SPS:\n ret = ff_h264_decode_seq_parameter_set(&nal->gb, avctx, &h->ps);\n if (ret < 0 && (h->avctx->err_recognition & AV_EF_EXPLODE))\n goto end;\n break;\n case H264_NAL_PPS:\n ret = ff_h264_decode_picture_parameter_set(&nal->gb, avctx, &h->ps,\n nal->size_bits);\n if (ret < 0 && (h->avctx->err_recognition & AV_EF_EXPLODE))\n goto end;\n break;\n case H264_NAL_AUD:\n case H264_NAL_END_SEQUENCE:\n case H264_NAL_END_STREAM:\n case H264_NAL_FILLER_DATA:\n case H264_NAL_SPS_EXT:\n case H264_NAL_AUXILIARY_SLICE:\n break;\n default:\n av_log(avctx, AV_LOG_DEBUG, "Unknown NAL code: %d (%d bits)\\n",\n nal->type, nal->size_bits);\n }\n if (context_count == h->nb_slice_ctx) {\n ret = ff_h264_execute_decode_slices(h, context_count);\n if (ret < 0 && (h->avctx->err_recognition & AV_EF_EXPLODE))\n goto end;\n context_count = 0;\n }\n if (err < 0) {\n av_log(h->avctx, AV_LOG_ERROR, "decode_slice_header error\\n");\n sl->ref_count[0] = sl->ref_count[1] = sl->list_count = 0;\n }\n }\n if (context_count) {\n ret = ff_h264_execute_decode_slices(h, context_count);\n if (ret < 0 && (h->avctx->err_recognition & AV_EF_EXPLODE))\n goto end;\n }\n ret = 0;\nend:\n if (h->cur_pic_ptr && !h->droppable) {\n ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX,\n h->picture_structure == PICT_BOTTOM_FIELD);\n }\n return (ret < 0) ? ret : buf_size;\n}', 'int ff_h2645_packet_split(H2645Packet *pkt, const uint8_t *buf, int length,\n void *logctx, int is_nalff, int nal_length_size,\n enum AVCodecID codec_id)\n{\n int consumed, ret = 0;\n pkt->nb_nals = 0;\n while (length >= 4) {\n H2645NAL *nal;\n int extract_length = 0;\n int skip_trailing_zeros = 1;\n if (is_nalff) {\n int i;\n for (i = 0; i < nal_length_size; i++)\n extract_length = (extract_length << 8) | buf[i];\n buf += nal_length_size;\n length -= nal_length_size;\n if (extract_length > length) {\n av_log(logctx, AV_LOG_ERROR, "Invalid NAL unit size.\\n");\n return AVERROR_INVALIDDATA;\n }\n } else {\n if (buf[2] == 0) {\n length--;\n buf++;\n continue;\n }\n if (buf[0] != 0 || buf[1] != 0 || buf[2] != 1)\n return AVERROR_INVALIDDATA;\n buf += 3;\n length -= 3;\n extract_length = length;\n }\n if (pkt->nals_allocated < pkt->nb_nals + 1) {\n int new_size = pkt->nals_allocated + 1;\n H2645NAL *tmp = av_realloc_array(pkt->nals, new_size, sizeof(*tmp));\n if (!tmp)\n return AVERROR(ENOMEM);\n pkt->nals = tmp;\n memset(pkt->nals + pkt->nals_allocated, 0,\n (new_size - pkt->nals_allocated) * sizeof(*tmp));\n pkt->nals_allocated = new_size;\n }\n nal = &pkt->nals[pkt->nb_nals++];\n consumed = ff_h2645_extract_rbsp(buf, extract_length, nal);\n if (consumed < 0)\n return consumed;\n if (consumed < length - 3 &&\n buf[consumed] == 0x00 && buf[consumed + 1] == 0x00 &&\n buf[consumed + 2] == 0x01 && buf[consumed + 3] == 0xE0)\n skip_trailing_zeros = 0;\n nal->size_bits = get_bit_length(nal, skip_trailing_zeros);\n ret = init_get_bits(&nal->gb, nal->data, nal->size_bits);\n if (ret < 0)\n return ret;\n if (codec_id == AV_CODEC_ID_HEVC)\n ret = hevc_parse_nal_header(nal, logctx);\n else\n ret = h264_parse_nal_header(nal, logctx);\n if (ret <= 0) {\n if (ret < 0) {\n av_log(logctx, AV_LOG_ERROR, "Invalid NAL unit %d, skipping.\\n",\n nal->type);\n }\n pkt->nb_nals--;\n }\n buf += consumed;\n length -= consumed;\n }\n return 0;\n}', 'static inline int init_get_bits(GetBitContext *s, const uint8_t *buffer,\n int bit_size)\n{\n int buffer_size;\n int ret = 0;\n if (bit_size > INT_MAX - 7 || bit_size < 0 || !buffer) {\n bit_size = 0;\n buffer = NULL;\n ret = AVERROR_INVALIDDATA;\n }\n buffer_size = (bit_size + 7) >> 3;\n s->buffer = buffer;\n s->size_in_bits = bit_size;\n#if !UNCHECKED_BITSTREAM_READER\n s->size_in_bits_plus8 = bit_size + 8;\n#endif\n s->buffer_end = buffer + buffer_size;\n s->index = 0;\n return ret;\n}', 'int ff_h264_decode_slice_header(H264Context *h, H264SliceContext *sl,\n const H2645NAL *nal)\n{\n int i, j, ret = 0;\n ret = h264_slice_header_parse(sl, nal, &h->ps, h->avctx);\n if (ret < 0)\n return ret;\n if (sl->redundant_pic_count > 0)\n return 0;\n if (!h->setup_finished) {\n if (sl->first_mb_addr == 0) {\n if (h->current_slice && h->cur_pic_ptr && FIELD_PICTURE(h)) {\n ff_h264_field_end(h, sl, 1);\n }\n h->current_slice = 0;\n if (!h->first_field) {\n if (h->cur_pic_ptr && !h->droppable) {\n ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX,\n h->picture_structure == PICT_BOTTOM_FIELD);\n }\n h->cur_pic_ptr = NULL;\n }\n }\n if (h->current_slice == 0) {\n ret = h264_field_start(h, sl, nal);\n if (ret < 0)\n return ret;\n }\n }\n if (h->current_slice > 0) {\n if (h->ps.pps != (const PPS*)h->ps.pps_list[sl->pps_id]->data) {\n av_log(h->avctx, AV_LOG_ERROR, "PPS changed between slices\\n");\n return AVERROR_INVALIDDATA;\n }\n if (h->picture_structure != sl->picture_structure ||\n h->droppable != (nal->ref_idc == 0)) {\n av_log(h->avctx, AV_LOG_ERROR,\n "Changing field mode (%d -> %d) between slices is not allowed\\n",\n h->picture_structure, sl->picture_structure);\n return AVERROR_INVALIDDATA;\n } else if (!h->cur_pic_ptr) {\n av_log(h->avctx, AV_LOG_ERROR,\n "unset cur_pic_ptr on slice %d\\n",\n h->current_slice + 1);\n return AVERROR_INVALIDDATA;\n }\n }\n if (h->picture_idr && nal->type != H264_NAL_IDR_SLICE) {\n av_log(h->avctx, AV_LOG_ERROR, "Invalid mix of IDR and non-IDR slices\\n");\n return AVERROR_INVALIDDATA;\n }\n assert(h->mb_num == h->mb_width * h->mb_height);\n if (sl->first_mb_addr << FIELD_OR_MBAFF_PICTURE(h) >= h->mb_num ||\n sl->first_mb_addr >= h->mb_num) {\n av_log(h->avctx, AV_LOG_ERROR, "first_mb_in_slice overflow\\n");\n return AVERROR_INVALIDDATA;\n }\n sl->resync_mb_x = sl->mb_x = sl->first_mb_addr % h->mb_width;\n sl->resync_mb_y = sl->mb_y = (sl->first_mb_addr / h->mb_width) <<\n FIELD_OR_MBAFF_PICTURE(h);\n if (h->picture_structure == PICT_BOTTOM_FIELD)\n sl->resync_mb_y = sl->mb_y = sl->mb_y + 1;\n assert(sl->mb_y < h->mb_height);\n ret = ff_h264_build_ref_list(h, sl);\n if (ret < 0)\n return ret;\n if (h->ps.pps->weighted_bipred_idc == 2 &&\n sl->slice_type_nos == AV_PICTURE_TYPE_B) {\n implicit_weight_table(h, sl, -1);\n if (FRAME_MBAFF(h)) {\n implicit_weight_table(h, sl, 0);\n implicit_weight_table(h, sl, 1);\n }\n }\n if (sl->slice_type_nos == AV_PICTURE_TYPE_B && !sl->direct_spatial_mv_pred)\n ff_h264_direct_dist_scale_factor(h, sl);\n ff_h264_direct_ref_list_init(h, sl);\n if (h->avctx->skip_loop_filter >= AVDISCARD_ALL ||\n (h->avctx->skip_loop_filter >= AVDISCARD_NONKEY &&\n sl->slice_type_nos != AV_PICTURE_TYPE_I) ||\n (h->avctx->skip_loop_filter >= AVDISCARD_BIDIR &&\n sl->slice_type_nos == AV_PICTURE_TYPE_B) ||\n (h->avctx->skip_loop_filter >= AVDISCARD_NONREF &&\n nal->ref_idc == 0))\n sl->deblocking_filter = 0;\n if (sl->deblocking_filter == 1 && h->nb_slice_ctx > 1) {\n if (h->avctx->flags2 & AV_CODEC_FLAG2_FAST) {\n sl->deblocking_filter = 2;\n } else {\n h->postpone_filter = 1;\n }\n }\n sl->qp_thresh = 15 -\n FFMIN(sl->slice_alpha_c0_offset, sl->slice_beta_offset) -\n FFMAX3(0,\n h->ps.pps->chroma_qp_index_offset[0],\n h->ps.pps->chroma_qp_index_offset[1]) +\n 6 * (h->ps.sps->bit_depth_luma - 8);\n sl->slice_num = ++h->current_slice;\n if (sl->slice_num >= MAX_SLICES) {\n av_log(h->avctx, AV_LOG_ERROR,\n "Too many slices, increase MAX_SLICES and recompile\\n");\n }\n for (j = 0; j < 2; j++) {\n int id_list[16];\n int *ref2frm = h->ref2frm[sl->slice_num & (MAX_SLICES - 1)][j];\n for (i = 0; i < 16; i++) {\n id_list[i] = 60;\n if (j < sl->list_count && i < sl->ref_count[j] &&\n sl->ref_list[j][i].parent->f->buf[0]) {\n int k;\n AVBuffer *buf = sl->ref_list[j][i].parent->f->buf[0]->buffer;\n for (k = 0; k < h->short_ref_count; k++)\n if (h->short_ref[k]->f->buf[0]->buffer == buf) {\n id_list[i] = k;\n break;\n }\n for (k = 0; k < h->long_ref_count; k++)\n if (h->long_ref[k] && h->long_ref[k]->f->buf[0]->buffer == buf) {\n id_list[i] = h->short_ref_count + k;\n break;\n }\n }\n }\n ref2frm[0] =\n ref2frm[1] = -1;\n for (i = 0; i < 16; i++)\n ref2frm[i + 2] = 4 * id_list[i] + (sl->ref_list[j][i].reference & 3);\n ref2frm[18 + 0] =\n ref2frm[18 + 1] = -1;\n for (i = 16; i < 48; i++)\n ref2frm[i + 4] = 4 * id_list[(i - 16) >> 1] +\n (sl->ref_list[j][i].reference & 3);\n }\n if (h->avctx->debug & FF_DEBUG_PICT_INFO) {\n av_log(h->avctx, AV_LOG_DEBUG,\n "slice:%d %s mb:%d %c%s%s frame:%d poc:%d/%d ref:%d/%d qp:%d loop:%d:%d:%d weight:%d%s %s\\n",\n sl->slice_num,\n (h->picture_structure == PICT_FRAME ? "F" : h->picture_structure == PICT_TOP_FIELD ? "T" : "B"),\n sl->mb_y * h->mb_width + sl->mb_x,\n av_get_picture_type_char(sl->slice_type),\n sl->slice_type_fixed ? " fix" : "",\n nal->type == H264_NAL_IDR_SLICE ? " IDR" : "",\n h->poc.frame_num,\n h->cur_pic_ptr->field_poc[0],\n h->cur_pic_ptr->field_poc[1],\n sl->ref_count[0], sl->ref_count[1],\n sl->qscale,\n sl->deblocking_filter,\n sl->slice_alpha_c0_offset, sl->slice_beta_offset,\n sl->pwt.use_weight,\n sl->pwt.use_weight == 1 && sl->pwt.use_weight_chroma ? "c" : "",\n sl->slice_type == AV_PICTURE_TYPE_B ? (sl->direct_spatial_mv_pred ? "SPAT" : "TEMP") : "");\n }\n return 0;\n}', 'static void implicit_weight_table(const H264Context *h, H264SliceContext *sl, int field)\n{\n int ref0, ref1, i, cur_poc, ref_start, ref_count0, ref_count1;\n for (i = 0; i < 2; i++) {\n sl->pwt.luma_weight_flag[i] = 0;\n sl->pwt.chroma_weight_flag[i] = 0;\n }\n if (field < 0) {\n if (h->picture_structure == PICT_FRAME) {\n cur_poc = h->cur_pic_ptr->poc;\n } else {\n cur_poc = h->cur_pic_ptr->field_poc[h->picture_structure - 1];\n }\n if (sl->ref_count[0] == 1 && sl->ref_count[1] == 1 && !FRAME_MBAFF(h) &&\n sl->ref_list[0][0].poc + sl->ref_list[1][0].poc == 2 * cur_poc) {\n sl->pwt.use_weight = 0;\n sl->pwt.use_weight_chroma = 0;\n return;\n }\n ref_start = 0;\n ref_count0 = sl->ref_count[0];\n ref_count1 = sl->ref_count[1];\n } else {\n cur_poc = h->cur_pic_ptr->field_poc[field];\n ref_start = 16;\n ref_count0 = 16 + 2 * sl->ref_count[0];\n ref_count1 = 16 + 2 * sl->ref_count[1];\n }\n sl->pwt.use_weight = 2;\n sl->pwt.use_weight_chroma = 2;\n sl->pwt.luma_log2_weight_denom = 5;\n sl->pwt.chroma_log2_weight_denom = 5;\n for (ref0 = ref_start; ref0 < ref_count0; ref0++) {\n int poc0 = sl->ref_list[0][ref0].poc;\n for (ref1 = ref_start; ref1 < ref_count1; ref1++) {\n int w = 32;\n if (!sl->ref_list[0][ref0].parent->long_ref && !sl->ref_list[1][ref1].parent->long_ref) {\n int poc1 = sl->ref_list[1][ref1].poc;\n int td = av_clip_int8(poc1 - poc0);\n if (td) {\n int tb = av_clip_int8(cur_poc - poc0);\n int tx = (16384 + (FFABS(td) >> 1)) / td;\n int dist_scale_factor = (tb * tx + 32) >> 8;\n if (dist_scale_factor >= -64 && dist_scale_factor <= 128)\n w = 64 - dist_scale_factor;\n }\n }\n if (field < 0) {\n sl->pwt.implicit_weight[ref0][ref1][0] =\n sl->pwt.implicit_weight[ref0][ref1][1] = w;\n } else {\n sl->pwt.implicit_weight[ref0][ref1][field] = w;\n }\n }\n }\n}'] |
25,906 | 0 | https://github.com/libav/libav/blob/fcda30f2dcb744d89df9d5d1ec89ba55279cb83c/libavformat/mpeg.c/#L562 | static int64_t mpegps_read_dts(AVFormatContext *s, int stream_index,
int64_t *ppos, int64_t pos_limit)
{
int len, startcode;
int64_t pos, pts, dts;
pos = *ppos;
if (avio_seek(s->pb, pos, SEEK_SET) < 0)
return AV_NOPTS_VALUE;
for (;;) {
len = mpegps_read_pes_header(s, &pos, &startcode, &pts, &dts);
if (len < 0) {
av_log(s, AV_LOG_TRACE, "none (ret=%d)\n", len);
return AV_NOPTS_VALUE;
}
if (startcode == s->streams[stream_index]->id &&
dts != AV_NOPTS_VALUE) {
break;
}
avio_skip(s->pb, len);
}
av_log(s, AV_LOG_TRACE, "pos=0x%"PRIx64" dts=0x%"PRIx64" %0.3f\n",
pos, dts, dts / 90000.0);
*ppos = pos;
return dts;
} | ['static int64_t mpegps_read_dts(AVFormatContext *s, int stream_index,\n int64_t *ppos, int64_t pos_limit)\n{\n int len, startcode;\n int64_t pos, pts, dts;\n pos = *ppos;\n if (avio_seek(s->pb, pos, SEEK_SET) < 0)\n return AV_NOPTS_VALUE;\n for (;;) {\n len = mpegps_read_pes_header(s, &pos, &startcode, &pts, &dts);\n if (len < 0) {\n av_log(s, AV_LOG_TRACE, "none (ret=%d)\\n", len);\n return AV_NOPTS_VALUE;\n }\n if (startcode == s->streams[stream_index]->id &&\n dts != AV_NOPTS_VALUE) {\n break;\n }\n avio_skip(s->pb, len);\n }\n av_log(s, AV_LOG_TRACE, "pos=0x%"PRIx64" dts=0x%"PRIx64" %0.3f\\n",\n pos, dts, dts / 90000.0);\n *ppos = pos;\n return dts;\n}'] |
25,907 | 0 | https://github.com/libav/libav/blob/7fa70598e83cca650717d02ac96bcf55e9f97c19/libavcodec/mpegaudiodec.c/#L1403 | static void exponents_from_scale_factors(MPADecodeContext *s,
GranuleDef *g,
int16_t *exponents)
{
const uint8_t *bstab, *pretab;
int len, i, j, k, l, v0, shift, gain, gains[3];
int16_t *exp_ptr;
exp_ptr = exponents;
gain = g->global_gain - 210;
shift = g->scalefac_scale + 1;
bstab = band_size_long[s->sample_rate_index];
pretab = mpa_pretab[g->preflag];
for(i=0;i<g->long_end;i++) {
v0 = gain - ((g->scale_factors[i] + pretab[i]) << shift) + 400;
len = bstab[i];
for(j=len;j>0;j--)
*exp_ptr++ = v0;
}
if (g->short_start < 13) {
bstab = band_size_short[s->sample_rate_index];
gains[0] = gain - (g->subblock_gain[0] << 3);
gains[1] = gain - (g->subblock_gain[1] << 3);
gains[2] = gain - (g->subblock_gain[2] << 3);
k = g->long_end;
for(i=g->short_start;i<13;i++) {
len = bstab[i];
for(l=0;l<3;l++) {
v0 = gains[l] - (g->scale_factors[k++] << shift) + 400;
for(j=len;j>0;j--)
*exp_ptr++ = v0;
}
}
}
} | ['static int decode_frame_mp3on4(AVCodecContext * avctx,\n void *data, int *data_size,\n const uint8_t * buf, int buf_size)\n{\n MP3On4DecodeContext *s = avctx->priv_data;\n MPADecodeContext *m;\n int fsize, len = buf_size, out_size = 0;\n uint32_t header;\n OUT_INT *out_samples = data;\n OUT_INT decoded_buf[MPA_FRAME_SIZE * MPA_MAX_CHANNELS];\n OUT_INT *outptr, *bp;\n int fr, j, n;\n *data_size = 0;\n if (buf_size < HEADER_SIZE)\n return -1;\n outptr = s->frames == 1 ? out_samples : decoded_buf;\n avctx->bit_rate = 0;\n for (fr = 0; fr < s->frames; fr++) {\n fsize = AV_RB16(buf) >> 4;\n fsize = FFMIN3(fsize, len, MPA_MAX_CODED_FRAME_SIZE);\n m = s->mp3decctx[fr];\n assert (m != NULL);\n header = (AV_RB32(buf) & 0x000fffff) | s->syncword;\n if (ff_mpa_check_header(header) < 0)\n break;\n ff_mpegaudio_decode_header((MPADecodeHeader *)m, header);\n out_size += mp_decode_frame(m, outptr, buf, fsize);\n buf += fsize;\n len -= fsize;\n if(s->frames > 1) {\n n = m->avctx->frame_size*m->nb_channels;\n bp = out_samples + s->coff[fr];\n if(m->nb_channels == 1) {\n for(j = 0; j < n; j++) {\n *bp = decoded_buf[j];\n bp += avctx->channels;\n }\n } else {\n for(j = 0; j < n; j++) {\n bp[0] = decoded_buf[j++];\n bp[1] = decoded_buf[j];\n bp += avctx->channels;\n }\n }\n }\n avctx->bit_rate += m->bit_rate;\n }\n avctx->sample_rate = s->mp3decctx[0]->sample_rate;\n *data_size = out_size;\n return buf_size;\n}', 'int ff_mpegaudio_decode_header(MPADecodeHeader *s, uint32_t header)\n{\n int sample_rate, frame_size, mpeg25, padding;\n int sample_rate_index, bitrate_index;\n if (header & (1<<20)) {\n s->lsf = (header & (1<<19)) ? 0 : 1;\n mpeg25 = 0;\n } else {\n s->lsf = 1;\n mpeg25 = 1;\n }\n s->layer = 4 - ((header >> 17) & 3);\n sample_rate_index = (header >> 10) & 3;\n sample_rate = ff_mpa_freq_tab[sample_rate_index] >> (s->lsf + mpeg25);\n sample_rate_index += 3 * (s->lsf + mpeg25);\n s->sample_rate_index = sample_rate_index;\n s->error_protection = ((header >> 16) & 1) ^ 1;\n s->sample_rate = sample_rate;\n bitrate_index = (header >> 12) & 0xf;\n padding = (header >> 9) & 1;\n s->mode = (header >> 6) & 3;\n s->mode_ext = (header >> 4) & 3;\n if (s->mode == MPA_MONO)\n s->nb_channels = 1;\n else\n s->nb_channels = 2;\n if (bitrate_index != 0) {\n frame_size = ff_mpa_bitrate_tab[s->lsf][s->layer - 1][bitrate_index];\n s->bit_rate = frame_size * 1000;\n switch(s->layer) {\n case 1:\n frame_size = (frame_size * 12000) / sample_rate;\n frame_size = (frame_size + padding) * 4;\n break;\n case 2:\n frame_size = (frame_size * 144000) / sample_rate;\n frame_size += padding;\n break;\n default:\n case 3:\n frame_size = (frame_size * 144000) / (sample_rate << s->lsf);\n frame_size += padding;\n break;\n }\n s->frame_size = frame_size;\n } else {\n return 1;\n }\n#if defined(DEBUG)\n dprintf(s->avctx, "layer%d, %d Hz, %d kbits/s, ",\n s->layer, s->sample_rate, s->bit_rate);\n if (s->nb_channels == 2) {\n if (s->layer == 3) {\n if (s->mode_ext & MODE_EXT_MS_STEREO)\n dprintf(s->avctx, "ms-");\n if (s->mode_ext & MODE_EXT_I_STEREO)\n dprintf(s->avctx, "i-");\n }\n dprintf(s->avctx, "stereo");\n } else {\n dprintf(s->avctx, "mono");\n }\n dprintf(s->avctx, "\\n");\n#endif\n return 0;\n}', 'static int mp_decode_frame(MPADecodeContext *s,\n OUT_INT *samples, const uint8_t *buf, int buf_size)\n{\n int i, nb_frames, ch;\n OUT_INT *samples_ptr;\n init_get_bits(&s->gb, buf + HEADER_SIZE, (buf_size - HEADER_SIZE)*8);\n if (s->error_protection)\n skip_bits(&s->gb, 16);\n dprintf(s->avctx, "frame %d:\\n", s->frame_count);\n switch(s->layer) {\n case 1:\n s->avctx->frame_size = 384;\n nb_frames = mp_decode_layer1(s);\n break;\n case 2:\n s->avctx->frame_size = 1152;\n nb_frames = mp_decode_layer2(s);\n break;\n case 3:\n s->avctx->frame_size = s->lsf ? 576 : 1152;\n default:\n nb_frames = mp_decode_layer3(s);\n s->last_buf_size=0;\n if(s->in_gb.buffer){\n align_get_bits(&s->gb);\n i= (s->gb.size_in_bits - get_bits_count(&s->gb))>>3;\n if(i >= 0 && i <= BACKSTEP_SIZE){\n memmove(s->last_buf, s->gb.buffer + (get_bits_count(&s->gb)>>3), i);\n s->last_buf_size=i;\n }else\n av_log(s->avctx, AV_LOG_ERROR, "invalid old backstep %d\\n", i);\n s->gb= s->in_gb;\n s->in_gb.buffer= NULL;\n }\n align_get_bits(&s->gb);\n assert((get_bits_count(&s->gb) & 7) == 0);\n i= (s->gb.size_in_bits - get_bits_count(&s->gb))>>3;\n if(i<0 || i > BACKSTEP_SIZE || nb_frames<0){\n if(i<0)\n av_log(s->avctx, AV_LOG_ERROR, "invalid new backstep %d\\n", i);\n i= FFMIN(BACKSTEP_SIZE, buf_size - HEADER_SIZE);\n }\n assert(i <= buf_size - HEADER_SIZE && i>= 0);\n memcpy(s->last_buf + s->last_buf_size, s->gb.buffer + buf_size - HEADER_SIZE - i, i);\n s->last_buf_size += i;\n break;\n }\n for(ch=0;ch<s->nb_channels;ch++) {\n samples_ptr = samples + ch;\n for(i=0;i<nb_frames;i++) {\n ff_mpa_synth_filter(s->synth_buf[ch], &(s->synth_buf_offset[ch]),\n window, &s->dither_state,\n samples_ptr, s->nb_channels,\n s->sb_samples[ch][i]);\n samples_ptr += 32 * s->nb_channels;\n }\n }\n return nb_frames * 32 * sizeof(OUT_INT) * s->nb_channels;\n}', 'static int mp_decode_layer3(MPADecodeContext *s)\n{\n int nb_granules, main_data_begin, private_bits;\n int gr, ch, blocksplit_flag, i, j, k, n, bits_pos;\n GranuleDef granules[2][2], *g;\n int16_t exponents[576];\n if (s->lsf) {\n main_data_begin = get_bits(&s->gb, 8);\n private_bits = get_bits(&s->gb, s->nb_channels);\n nb_granules = 1;\n } else {\n main_data_begin = get_bits(&s->gb, 9);\n if (s->nb_channels == 2)\n private_bits = get_bits(&s->gb, 3);\n else\n private_bits = get_bits(&s->gb, 5);\n nb_granules = 2;\n for(ch=0;ch<s->nb_channels;ch++) {\n granules[ch][0].scfsi = 0;\n granules[ch][1].scfsi = get_bits(&s->gb, 4);\n }\n }\n for(gr=0;gr<nb_granules;gr++) {\n for(ch=0;ch<s->nb_channels;ch++) {\n dprintf(s->avctx, "gr=%d ch=%d: side_info\\n", gr, ch);\n g = &granules[ch][gr];\n g->part2_3_length = get_bits(&s->gb, 12);\n g->big_values = get_bits(&s->gb, 9);\n if(g->big_values > 288){\n av_log(s->avctx, AV_LOG_ERROR, "big_values too big\\n");\n return -1;\n }\n g->global_gain = get_bits(&s->gb, 8);\n if ((s->mode_ext & (MODE_EXT_MS_STEREO | MODE_EXT_I_STEREO)) ==\n MODE_EXT_MS_STEREO)\n g->global_gain -= 2;\n if (s->lsf)\n g->scalefac_compress = get_bits(&s->gb, 9);\n else\n g->scalefac_compress = get_bits(&s->gb, 4);\n blocksplit_flag = get_bits1(&s->gb);\n if (blocksplit_flag) {\n g->block_type = get_bits(&s->gb, 2);\n if (g->block_type == 0){\n av_log(s->avctx, AV_LOG_ERROR, "invalid block type\\n");\n return -1;\n }\n g->switch_point = get_bits1(&s->gb);\n for(i=0;i<2;i++)\n g->table_select[i] = get_bits(&s->gb, 5);\n for(i=0;i<3;i++)\n g->subblock_gain[i] = get_bits(&s->gb, 3);\n ff_init_short_region(s, g);\n } else {\n int region_address1, region_address2;\n g->block_type = 0;\n g->switch_point = 0;\n for(i=0;i<3;i++)\n g->table_select[i] = get_bits(&s->gb, 5);\n region_address1 = get_bits(&s->gb, 4);\n region_address2 = get_bits(&s->gb, 3);\n dprintf(s->avctx, "region1=%d region2=%d\\n",\n region_address1, region_address2);\n ff_init_long_region(s, g, region_address1, region_address2);\n }\n ff_region_offset2size(g);\n ff_compute_band_indexes(s, g);\n g->preflag = 0;\n if (!s->lsf)\n g->preflag = get_bits1(&s->gb);\n g->scalefac_scale = get_bits1(&s->gb);\n g->count1table_select = get_bits1(&s->gb);\n dprintf(s->avctx, "block_type=%d switch_point=%d\\n",\n g->block_type, g->switch_point);\n }\n }\n if (!s->adu_mode) {\n const uint8_t *ptr = s->gb.buffer + (get_bits_count(&s->gb)>>3);\n assert((get_bits_count(&s->gb) & 7) == 0);\n dprintf(s->avctx, "seekback: %d\\n", main_data_begin);\n memcpy(s->last_buf + s->last_buf_size, ptr, EXTRABYTES);\n s->in_gb= s->gb;\n init_get_bits(&s->gb, s->last_buf, s->last_buf_size*8);\n skip_bits_long(&s->gb, 8*(s->last_buf_size - main_data_begin));\n }\n for(gr=0;gr<nb_granules;gr++) {\n for(ch=0;ch<s->nb_channels;ch++) {\n g = &granules[ch][gr];\n if(get_bits_count(&s->gb)<0){\n av_log(s->avctx, AV_LOG_ERROR, "mdb:%d, lastbuf:%d skipping granule %d\\n",\n main_data_begin, s->last_buf_size, gr);\n skip_bits_long(&s->gb, g->part2_3_length);\n memset(g->sb_hybrid, 0, sizeof(g->sb_hybrid));\n if(get_bits_count(&s->gb) >= s->gb.size_in_bits && s->in_gb.buffer){\n skip_bits_long(&s->in_gb, get_bits_count(&s->gb) - s->gb.size_in_bits);\n s->gb= s->in_gb;\n s->in_gb.buffer=NULL;\n }\n continue;\n }\n bits_pos = get_bits_count(&s->gb);\n if (!s->lsf) {\n uint8_t *sc;\n int slen, slen1, slen2;\n slen1 = slen_table[0][g->scalefac_compress];\n slen2 = slen_table[1][g->scalefac_compress];\n dprintf(s->avctx, "slen1=%d slen2=%d\\n", slen1, slen2);\n if (g->block_type == 2) {\n n = g->switch_point ? 17 : 18;\n j = 0;\n if(slen1){\n for(i=0;i<n;i++)\n g->scale_factors[j++] = get_bits(&s->gb, slen1);\n }else{\n for(i=0;i<n;i++)\n g->scale_factors[j++] = 0;\n }\n if(slen2){\n for(i=0;i<18;i++)\n g->scale_factors[j++] = get_bits(&s->gb, slen2);\n for(i=0;i<3;i++)\n g->scale_factors[j++] = 0;\n }else{\n for(i=0;i<21;i++)\n g->scale_factors[j++] = 0;\n }\n } else {\n sc = granules[ch][0].scale_factors;\n j = 0;\n for(k=0;k<4;k++) {\n n = (k == 0 ? 6 : 5);\n if ((g->scfsi & (0x8 >> k)) == 0) {\n slen = (k < 2) ? slen1 : slen2;\n if(slen){\n for(i=0;i<n;i++)\n g->scale_factors[j++] = get_bits(&s->gb, slen);\n }else{\n for(i=0;i<n;i++)\n g->scale_factors[j++] = 0;\n }\n } else {\n for(i=0;i<n;i++) {\n g->scale_factors[j] = sc[j];\n j++;\n }\n }\n }\n g->scale_factors[j++] = 0;\n }\n } else {\n int tindex, tindex2, slen[4], sl, sf;\n if (g->block_type == 2) {\n tindex = g->switch_point ? 2 : 1;\n } else {\n tindex = 0;\n }\n sf = g->scalefac_compress;\n if ((s->mode_ext & MODE_EXT_I_STEREO) && ch == 1) {\n sf >>= 1;\n if (sf < 180) {\n lsf_sf_expand(slen, sf, 6, 6, 0);\n tindex2 = 3;\n } else if (sf < 244) {\n lsf_sf_expand(slen, sf - 180, 4, 4, 0);\n tindex2 = 4;\n } else {\n lsf_sf_expand(slen, sf - 244, 3, 0, 0);\n tindex2 = 5;\n }\n } else {\n if (sf < 400) {\n lsf_sf_expand(slen, sf, 5, 4, 4);\n tindex2 = 0;\n } else if (sf < 500) {\n lsf_sf_expand(slen, sf - 400, 5, 4, 0);\n tindex2 = 1;\n } else {\n lsf_sf_expand(slen, sf - 500, 3, 0, 0);\n tindex2 = 2;\n g->preflag = 1;\n }\n }\n j = 0;\n for(k=0;k<4;k++) {\n n = lsf_nsf_table[tindex2][tindex][k];\n sl = slen[k];\n if(sl){\n for(i=0;i<n;i++)\n g->scale_factors[j++] = get_bits(&s->gb, sl);\n }else{\n for(i=0;i<n;i++)\n g->scale_factors[j++] = 0;\n }\n }\n for(;j<40;j++)\n g->scale_factors[j] = 0;\n }\n exponents_from_scale_factors(s, g, exponents);\n huffman_decode(s, g, exponents, bits_pos + g->part2_3_length);\n }\n if (s->nb_channels == 2)\n compute_stereo(s, &granules[0][gr], &granules[1][gr]);\n for(ch=0;ch<s->nb_channels;ch++) {\n g = &granules[ch][gr];\n reorder_block(s, g);\n s->compute_antialias(s, g);\n compute_imdct(s, g, &s->sb_samples[ch][18 * gr][0], s->mdct_buf[ch]);\n }\n }\n if(get_bits_count(&s->gb)<0)\n skip_bits_long(&s->gb, -get_bits_count(&s->gb));\n return nb_granules * 18;\n}', 'static void exponents_from_scale_factors(MPADecodeContext *s,\n GranuleDef *g,\n int16_t *exponents)\n{\n const uint8_t *bstab, *pretab;\n int len, i, j, k, l, v0, shift, gain, gains[3];\n int16_t *exp_ptr;\n exp_ptr = exponents;\n gain = g->global_gain - 210;\n shift = g->scalefac_scale + 1;\n bstab = band_size_long[s->sample_rate_index];\n pretab = mpa_pretab[g->preflag];\n for(i=0;i<g->long_end;i++) {\n v0 = gain - ((g->scale_factors[i] + pretab[i]) << shift) + 400;\n len = bstab[i];\n for(j=len;j>0;j--)\n *exp_ptr++ = v0;\n }\n if (g->short_start < 13) {\n bstab = band_size_short[s->sample_rate_index];\n gains[0] = gain - (g->subblock_gain[0] << 3);\n gains[1] = gain - (g->subblock_gain[1] << 3);\n gains[2] = gain - (g->subblock_gain[2] << 3);\n k = g->long_end;\n for(i=g->short_start;i<13;i++) {\n len = bstab[i];\n for(l=0;l<3;l++) {\n v0 = gains[l] - (g->scale_factors[k++] << shift) + 400;\n for(j=len;j>0;j--)\n *exp_ptr++ = v0;\n }\n }\n }\n}'] |
25,908 | 0 | https://github.com/openssl/openssl/blob/be3d90de02138273d054bb9d6b4381754b34676d/crypto/bn/bn_print.c/#L197 | int BN_hex2bn(BIGNUM **bn, const char *a)
{
BIGNUM *ret=NULL;
BN_ULONG l=0;
int neg=0,h,m,i,j,k,c;
int num;
if ((a == NULL) || (*a == '\0')) return(0);
if (*a == '-') { neg=1; a++; }
for (i=0; isxdigit((unsigned char) a[i]); i++)
;
num=i+neg;
if (bn == NULL) return(num);
if (*bn == NULL)
{
if ((ret=BN_new()) == NULL) return(0);
}
else
{
ret= *bn;
BN_zero(ret);
}
if (bn_expand(ret,i*4) == NULL) goto err;
j=i;
m=0;
h=0;
while (j > 0)
{
m=((BN_BYTES*2) <= j)?(BN_BYTES*2):j;
l=0;
for (;;)
{
c=a[j-m];
if ((c >= '0') && (c <= '9')) k=c-'0';
else if ((c >= 'a') && (c <= 'f')) k=c-'a'+10;
else if ((c >= 'A') && (c <= 'F')) k=c-'A'+10;
else k=0;
l=(l<<4)|k;
if (--m <= 0)
{
ret->d[h++]=l;
break;
}
}
j-=(BN_BYTES*2);
}
ret->top=h;
bn_fix_top(ret);
ret->neg=neg;
*bn=ret;
return(num);
err:
if (*bn == NULL) BN_free(ret);
return(0);
} | ['EC_GROUP *EC_GROUP_new_by_name(int name)\n\t{\n\tEC_GROUP *ret = NULL;\n\tswitch (name)\n\t\t{\n\tcase EC_GROUP_NO_CURVE:\n\t\treturn NULL;\n\tcase EC_GROUP_NIST_PRIME_224:\n\t\tret = ec_group_new_GFp_from_hex(_EC_GROUP_NIST_PRIME_224);\n\t\tbreak;\n\tcase EC_GROUP_NIST_PRIME_384:\n\t\tret = ec_group_new_GFp_from_hex(_EC_GROUP_NIST_PRIME_384);\n\t\tbreak;\n\tcase EC_GROUP_NIST_PRIME_521:\n\t\tret = ec_group_new_GFp_from_hex(_EC_GROUP_NIST_PRIME_521);\n\t\tbreak;\n\tcase EC_GROUP_NIST_PRIME_192:\n\tcase EC_GROUP_X9_62_PRIME_192V1:\n\t\tret = ec_group_new_GFp_from_hex(_EC_GROUP_NIST_PRIME_192);\n\t\tbreak;\n\tcase EC_GROUP_X9_62_PRIME_192V2:\n\t\tret = ec_group_new_GFp_from_hex(_EC_GROUP_X9_62_PRIME_192V2);\n\t\tbreak;\n\tcase EC_GROUP_X9_62_PRIME_192V3:\n\t\tret = ec_group_new_GFp_from_hex(_EC_GROUP_X9_62_PRIME_192V3);\n\t\tbreak;\n\tcase EC_GROUP_X9_62_PRIME_239V1:\n\t\tret = ec_group_new_GFp_from_hex(_EC_GROUP_X9_62_PRIME_239V1);\n\t\tbreak;\n\tcase EC_GROUP_X9_62_PRIME_239V2:\n\t\tret = ec_group_new_GFp_from_hex(_EC_GROUP_X9_62_PRIME_239V2);\n\t\tbreak;\n\tcase EC_GROUP_X9_62_PRIME_239V3:\n\t\tret = ec_group_new_GFp_from_hex(_EC_GROUP_X9_62_PRIME_239V3);\n\t\tbreak;\n\tcase EC_GROUP_NIST_PRIME_256:\n\tcase EC_GROUP_X9_62_PRIME_256V1:\n\t\tret = ec_group_new_GFp_from_hex(_EC_GROUP_X9_62_PRIME_256V1);\n\t\tbreak;\n\tcase EC_GROUP_SECG_PRIME_112R1:\n\t\tret = ec_group_new_GFp_from_hex(_EC_GROUP_SECG_PRIME_112R1);\n\t\tbreak;\n\tcase EC_GROUP_SECG_PRIME_112R2:\n\t\tret = ec_group_new_GFp_from_hex(_EC_GROUP_SECG_PRIME_112R2);\n\t\tbreak;\n\tcase EC_GROUP_SECG_PRIME_128R1:\n\t\tret = ec_group_new_GFp_from_hex(_EC_GROUP_SECG_PRIME_128R1);\n\t\tbreak;\n\tcase EC_GROUP_SECG_PRIME_128R2:\n\t\tret = ec_group_new_GFp_from_hex(_EC_GROUP_SECG_PRIME_128R2);\n\t\tbreak;\n\tcase EC_GROUP_SECG_PRIME_160K1:\n\t\tret = ec_group_new_GFp_from_hex(_EC_GROUP_SECG_PRIME_160K1);\n\t\tbreak;\n\tcase EC_GROUP_SECG_PRIME_160R1:\n\t\tret = ec_group_new_GFp_from_hex(_EC_GROUP_SECG_PRIME_160R1);\n\t\tbreak;\n\tcase EC_GROUP_SECG_PRIME_160R2:\n\t\tret = ec_group_new_GFp_from_hex(_EC_GROUP_SECG_PRIME_160R2);\n\t\tbreak;\n\tcase EC_GROUP_SECG_PRIME_192K1:\n\t\tret = ec_group_new_GFp_from_hex(_EC_GROUP_SECG_PRIME_192K1);\n\t\tbreak;\n\tcase EC_GROUP_SECG_PRIME_224K1:\n\t\tret = ec_group_new_GFp_from_hex(_EC_GROUP_SECG_PRIME_224K1);\n\t\tbreak;\n\tcase EC_GROUP_SECG_PRIME_256K1:\n\t\tret = ec_group_new_GFp_from_hex(_EC_GROUP_SECG_PRIME_256K1);\n\t\tbreak;\n\tcase EC_GROUP_WTLS_6:\n\t\tret = ec_group_new_GFp_from_hex(_EC_GROUP_WTLS_6);\n\t\tbreak;\n\tcase EC_GROUP_WTLS_8:\n\t\tret = ec_group_new_GFp_from_hex(_EC_GROUP_WTLS_8);\n\t\tbreak;\n\tcase EC_GROUP_WTLS_9:\n\t\tret = ec_group_new_GFp_from_hex(_EC_GROUP_WTLS_9);\n\t\tbreak;\n\t\t}\n\tif (ret == NULL)\n\t\t{\n\t\tECerr(EC_F_EC_GROUP_NEW_BY_NAME, EC_R_UNKNOWN_GROUP);\n\t\treturn NULL;\n\t\t}\n\tEC_GROUP_set_nid(ret, name);\n\treturn ret;\n\t}', 'static EC_GROUP *ec_group_new_GFp_from_hex(const char *prime_in,\n\t const char *a_in, const char *b_in,\n\t const char *x_in, const int y_bit, const char *order_in, const BN_ULONG cofac_in)\n\t{\n\tEC_GROUP *group=NULL;\n\tEC_POINT *P=NULL;\n\tBN_CTX\t *ctx=NULL;\n\tBIGNUM \t *prime=NULL,*a=NULL,*b=NULL,*x=NULL,*order=NULL;\n\tint\t ok=0;\n\tif ((ctx = BN_CTX_new()) == NULL) goto bn_err;\n\tif ((prime = BN_new()) == NULL || (a = BN_new()) == NULL || (b = BN_new()) == NULL ||\n\t\t(x = BN_new()) == NULL || (order = BN_new()) == NULL) goto bn_err;\n\tif (!BN_hex2bn(&prime, prime_in)) goto bn_err;\n\tif (!BN_hex2bn(&a, a_in)) goto bn_err;\n\tif (!BN_hex2bn(&b, b_in)) goto bn_err;\n\tif ((group = EC_GROUP_new_curve_GFp(prime, a, b, ctx)) == NULL) goto err;\n\tif ((P = EC_POINT_new(group)) == NULL) goto err;\n\tif (!BN_hex2bn(&x, x_in)) goto bn_err;\n\tif (!EC_POINT_set_compressed_coordinates_GFp(group, P, x, y_bit, ctx)) goto err;\n\tif (!BN_hex2bn(&order, order_in)) goto bn_err;\n\tif (!BN_set_word(x, cofac_in)) goto bn_err;\n\tif (!EC_GROUP_set_generator(group, P, order, x)) goto err;\n\tok=1;\nbn_err:\n\tif (!ok)\n\t\tECerr(EC_F_EC_GROUP_NEW_GFP_FROM_HEX, ERR_R_BN_LIB);\nerr:\n\tif (!ok)\n\t\t{\n\t\tEC_GROUP_free(group);\n\t\tgroup = NULL;\n\t\t}\n\tif (P) \t EC_POINT_free(P);\n\tif (ctx) BN_CTX_free(ctx);\n\tif (prime) BN_free(prime);\n\tif (a) BN_free(a);\n\tif (b) BN_free(b);\n\tif (order) BN_free(order);\n\tif (x) BN_free(x);\n\treturn(group);\n\t}', "int BN_hex2bn(BIGNUM **bn, const char *a)\n\t{\n\tBIGNUM *ret=NULL;\n\tBN_ULONG l=0;\n\tint neg=0,h,m,i,j,k,c;\n\tint num;\n\tif ((a == NULL) || (*a == '\\0')) return(0);\n\tif (*a == '-') { neg=1; a++; }\n\tfor (i=0; isxdigit((unsigned char) a[i]); i++)\n\t\t;\n\tnum=i+neg;\n\tif (bn == NULL) return(num);\n\tif (*bn == NULL)\n\t\t{\n\t\tif ((ret=BN_new()) == NULL) return(0);\n\t\t}\n\telse\n\t\t{\n\t\tret= *bn;\n\t\tBN_zero(ret);\n\t\t}\n\tif (bn_expand(ret,i*4) == NULL) goto err;\n\tj=i;\n\tm=0;\n\th=0;\n\twhile (j > 0)\n\t\t{\n\t\tm=((BN_BYTES*2) <= j)?(BN_BYTES*2):j;\n\t\tl=0;\n\t\tfor (;;)\n\t\t\t{\n\t\t\tc=a[j-m];\n\t\t\tif ((c >= '0') && (c <= '9')) k=c-'0';\n\t\t\telse if ((c >= 'a') && (c <= 'f')) k=c-'a'+10;\n\t\t\telse if ((c >= 'A') && (c <= 'F')) k=c-'A'+10;\n\t\t\telse k=0;\n\t\t\tl=(l<<4)|k;\n\t\t\tif (--m <= 0)\n\t\t\t\t{\n\t\t\t\tret->d[h++]=l;\n\t\t\t\tbreak;\n\t\t\t\t}\n\t\t\t}\n\t\tj-=(BN_BYTES*2);\n\t\t}\n\tret->top=h;\n\tbn_fix_top(ret);\n\tret->neg=neg;\n\t*bn=ret;\n\treturn(num);\nerr:\n\tif (*bn == NULL) BN_free(ret);\n\treturn(0);\n\t}"] |
25,909 | 0 | https://github.com/openssl/openssl/blob/e02c519cd32a55e6ad39a0cfbeeda775f9115f28/crypto/bn/bn_lib.c/#L232 | static BN_ULONG *bn_expand_internal(const BIGNUM *b, int words)
{
BN_ULONG *a = NULL;
if (words > (INT_MAX / (4 * BN_BITS2))) {
BNerr(BN_F_BN_EXPAND_INTERNAL, BN_R_BIGNUM_TOO_LONG);
return NULL;
}
if (BN_get_flags(b, BN_FLG_STATIC_DATA)) {
BNerr(BN_F_BN_EXPAND_INTERNAL, BN_R_EXPAND_ON_STATIC_BIGNUM_DATA);
return NULL;
}
if (BN_get_flags(b, BN_FLG_SECURE))
a = OPENSSL_secure_zalloc(words * sizeof(*a));
else
a = OPENSSL_zalloc(words * sizeof(*a));
if (a == NULL) {
BNerr(BN_F_BN_EXPAND_INTERNAL, ERR_R_MALLOC_FAILURE);
return NULL;
}
assert(b->top <= words);
if (b->top > 0)
memcpy(a, b->d, sizeof(*a) * b->top);
return a;
} | ['int ec_GFp_simple_point_get_affine_coordinates(const EC_GROUP *group,\n const EC_POINT *point,\n BIGNUM *x, BIGNUM *y,\n BN_CTX *ctx)\n{\n BN_CTX *new_ctx = NULL;\n BIGNUM *Z, *Z_1, *Z_2, *Z_3;\n const BIGNUM *Z_;\n int ret = 0;\n if (EC_POINT_is_at_infinity(group, point)) {\n ECerr(EC_F_EC_GFP_SIMPLE_POINT_GET_AFFINE_COORDINATES,\n EC_R_POINT_AT_INFINITY);\n return 0;\n }\n if (ctx == NULL) {\n ctx = new_ctx = BN_CTX_new();\n if (ctx == NULL)\n return 0;\n }\n BN_CTX_start(ctx);\n Z = BN_CTX_get(ctx);\n Z_1 = BN_CTX_get(ctx);\n Z_2 = BN_CTX_get(ctx);\n Z_3 = BN_CTX_get(ctx);\n if (Z_3 == NULL)\n goto err;\n if (group->meth->field_decode) {\n if (!group->meth->field_decode(group, Z, point->Z, ctx))\n goto err;\n Z_ = Z;\n } else {\n Z_ = point->Z;\n }\n if (BN_is_one(Z_)) {\n if (group->meth->field_decode) {\n if (x != NULL) {\n if (!group->meth->field_decode(group, x, point->X, ctx))\n goto err;\n }\n if (y != NULL) {\n if (!group->meth->field_decode(group, y, point->Y, ctx))\n goto err;\n }\n } else {\n if (x != NULL) {\n if (!BN_copy(x, point->X))\n goto err;\n }\n if (y != NULL) {\n if (!BN_copy(y, point->Y))\n goto err;\n }\n }\n } else {\n if (!BN_mod_inverse(Z_1, Z_, group->field, ctx)) {\n ECerr(EC_F_EC_GFP_SIMPLE_POINT_GET_AFFINE_COORDINATES,\n ERR_R_BN_LIB);\n goto err;\n }\n if (group->meth->field_encode == 0) {\n if (!group->meth->field_sqr(group, Z_2, Z_1, ctx))\n goto err;\n } else {\n if (!BN_mod_sqr(Z_2, Z_1, group->field, ctx))\n goto err;\n }\n if (x != NULL) {\n if (!group->meth->field_mul(group, x, point->X, Z_2, ctx))\n goto err;\n }\n if (y != NULL) {\n if (group->meth->field_encode == 0) {\n if (!group->meth->field_mul(group, Z_3, Z_2, Z_1, ctx))\n goto err;\n } else {\n if (!BN_mod_mul(Z_3, Z_2, Z_1, group->field, ctx))\n goto err;\n }\n if (!group->meth->field_mul(group, y, point->Y, Z_3, ctx))\n goto err;\n }\n }\n ret = 1;\n err:\n BN_CTX_end(ctx);\n BN_CTX_free(new_ctx);\n return ret;\n}', 'BIGNUM *BN_CTX_get(BN_CTX *ctx)\n{\n BIGNUM *ret;\n CTXDBG_ENTRY("BN_CTX_get", ctx);\n if (ctx->err_stack || ctx->too_many)\n return NULL;\n if ((ret = BN_POOL_get(&ctx->pool, ctx->flags)) == NULL) {\n ctx->too_many = 1;\n BNerr(BN_F_BN_CTX_GET, BN_R_TOO_MANY_TEMPORARY_VARIABLES);\n return NULL;\n }\n BN_zero(ret);\n ctx->used++;\n CTXDBG_RET(ctx, ret);\n return ret;\n}', 'int BN_set_word(BIGNUM *a, BN_ULONG w)\n{\n bn_check_top(a);\n if (bn_expand(a, (int)sizeof(BN_ULONG) * 8) == NULL)\n return 0;\n a->neg = 0;\n a->d[0] = w;\n a->top = (w ? 1 : 0);\n a->flags &= ~BN_FLG_FIXED_TOP;\n bn_check_top(a);\n return 1;\n}', 'static ossl_inline BIGNUM *bn_expand(BIGNUM *a, int bits)\n{\n if (bits > (INT_MAX - BN_BITS2 + 1))\n return NULL;\n if (((bits+BN_BITS2-1)/BN_BITS2) <= (a)->dmax)\n return a;\n return bn_expand2((a),(bits+BN_BITS2-1)/BN_BITS2);\n}', 'int BN_mod_sqr(BIGNUM *r, const BIGNUM *a, const BIGNUM *m, BN_CTX *ctx)\n{\n if (!BN_sqr(r, a, ctx))\n return 0;\n return BN_mod(r, r, m, ctx);\n}', 'int BN_sqr(BIGNUM *r, const BIGNUM *a, BN_CTX *ctx)\n{\n int ret = bn_sqr_fixed_top(r, a, ctx);\n bn_correct_top(r);\n bn_check_top(r);\n return ret;\n}', 'int bn_sqr_fixed_top(BIGNUM *r, const BIGNUM *a, BN_CTX *ctx)\n{\n int max, al;\n int ret = 0;\n BIGNUM *tmp, *rr;\n bn_check_top(a);\n al = a->top;\n if (al <= 0) {\n r->top = 0;\n r->neg = 0;\n return 1;\n }\n BN_CTX_start(ctx);\n rr = (a != r) ? r : BN_CTX_get(ctx);\n tmp = BN_CTX_get(ctx);\n if (rr == NULL || tmp == NULL)\n goto err;\n max = 2 * al;\n if (bn_wexpand(rr, max) == NULL)\n goto err;\n if (al == 4) {\n#ifndef BN_SQR_COMBA\n BN_ULONG t[8];\n bn_sqr_normal(rr->d, a->d, 4, t);\n#else\n bn_sqr_comba4(rr->d, a->d);\n#endif\n } else if (al == 8) {\n#ifndef BN_SQR_COMBA\n BN_ULONG t[16];\n bn_sqr_normal(rr->d, a->d, 8, t);\n#else\n bn_sqr_comba8(rr->d, a->d);\n#endif\n } else {\n#if defined(BN_RECURSION)\n if (al < BN_SQR_RECURSIVE_SIZE_NORMAL) {\n BN_ULONG t[BN_SQR_RECURSIVE_SIZE_NORMAL * 2];\n bn_sqr_normal(rr->d, a->d, al, t);\n } else {\n int j, k;\n j = BN_num_bits_word((BN_ULONG)al);\n j = 1 << (j - 1);\n k = j + j;\n if (al == j) {\n if (bn_wexpand(tmp, k * 2) == NULL)\n goto err;\n bn_sqr_recursive(rr->d, a->d, al, tmp->d);\n } else {\n if (bn_wexpand(tmp, max) == NULL)\n goto err;\n bn_sqr_normal(rr->d, a->d, al, tmp->d);\n }\n }\n#else\n if (bn_wexpand(tmp, max) == NULL)\n goto err;\n bn_sqr_normal(rr->d, a->d, al, tmp->d);\n#endif\n }\n rr->neg = 0;\n rr->top = max;\n rr->flags |= BN_FLG_FIXED_TOP;\n if (r != rr && BN_copy(r, rr) == NULL)\n goto err;\n ret = 1;\n err:\n bn_check_top(rr);\n bn_check_top(tmp);\n BN_CTX_end(ctx);\n return ret;\n}', 'BIGNUM *bn_wexpand(BIGNUM *a, int words)\n{\n return (words <= a->dmax) ? a : bn_expand2(a, words);\n}', 'BIGNUM *bn_expand2(BIGNUM *b, int words)\n{\n if (words > b->dmax) {\n BN_ULONG *a = bn_expand_internal(b, words);\n if (!a)\n return NULL;\n if (b->d) {\n OPENSSL_cleanse(b->d, b->dmax * sizeof(b->d[0]));\n bn_free_d(b);\n }\n b->d = a;\n b->dmax = words;\n }\n return b;\n}', 'static BN_ULONG *bn_expand_internal(const BIGNUM *b, int words)\n{\n BN_ULONG *a = NULL;\n if (words > (INT_MAX / (4 * BN_BITS2))) {\n BNerr(BN_F_BN_EXPAND_INTERNAL, BN_R_BIGNUM_TOO_LONG);\n return NULL;\n }\n if (BN_get_flags(b, BN_FLG_STATIC_DATA)) {\n BNerr(BN_F_BN_EXPAND_INTERNAL, BN_R_EXPAND_ON_STATIC_BIGNUM_DATA);\n return NULL;\n }\n if (BN_get_flags(b, BN_FLG_SECURE))\n a = OPENSSL_secure_zalloc(words * sizeof(*a));\n else\n a = OPENSSL_zalloc(words * sizeof(*a));\n if (a == NULL) {\n BNerr(BN_F_BN_EXPAND_INTERNAL, ERR_R_MALLOC_FAILURE);\n return NULL;\n }\n assert(b->top <= words);\n if (b->top > 0)\n memcpy(a, b->d, sizeof(*a) * b->top);\n return a;\n}'] |
25,910 | 0 | https://github.com/openssl/openssl/blob/985de8634000df9b33b8ac4519fa10a99e43b314/crypto/objects/o_names.c/#L106 | int OBJ_NAME_new_index(unsigned long (*hash_func)(const char *),
int (*cmp_func)(const char *, const char *),
void (*free_func)(const char *, int, const char *))
{
int ret;
int i;
NAME_FUNCS *name_funcs;
if (name_funcs_stack == NULL)
{
MemCheck_off();
name_funcs_stack=sk_NAME_FUNCS_new_null();
MemCheck_on();
}
if ((name_funcs_stack == NULL))
{
return(0);
}
ret=names_type_num;
names_type_num++;
for (i=sk_NAME_FUNCS_num(name_funcs_stack); i<names_type_num; i++)
{
MemCheck_off();
name_funcs = OPENSSL_malloc(sizeof(NAME_FUNCS));
MemCheck_on();
if (!name_funcs)
{
OBJerr(OBJ_F_OBJ_NAME_NEW_INDEX,ERR_R_MALLOC_FAILURE);
return(0);
}
name_funcs->hash_func = lh_strhash;
name_funcs->cmp_func = OPENSSL_strcmp;
name_funcs->free_func = 0;
MemCheck_off();
sk_NAME_FUNCS_push(name_funcs_stack,name_funcs);
MemCheck_on();
}
name_funcs = sk_NAME_FUNCS_value(name_funcs_stack, ret);
if (hash_func != NULL)
name_funcs->hash_func = hash_func;
if (cmp_func != NULL)
name_funcs->cmp_func = cmp_func;
if (free_func != NULL)
name_funcs->free_func = free_func;
return(ret);
} | ['int OBJ_NAME_new_index(unsigned long (*hash_func)(const char *),\n\tint (*cmp_func)(const char *, const char *),\n\tvoid (*free_func)(const char *, int, const char *))\n\t{\n\tint ret;\n\tint i;\n\tNAME_FUNCS *name_funcs;\n\tif (name_funcs_stack == NULL)\n\t\t{\n\t\tMemCheck_off();\n\t\tname_funcs_stack=sk_NAME_FUNCS_new_null();\n\t\tMemCheck_on();\n\t\t}\n\tif ((name_funcs_stack == NULL))\n\t\t{\n\t\treturn(0);\n\t\t}\n\tret=names_type_num;\n\tnames_type_num++;\n\tfor (i=sk_NAME_FUNCS_num(name_funcs_stack); i<names_type_num; i++)\n\t\t{\n\t\tMemCheck_off();\n\t\tname_funcs = OPENSSL_malloc(sizeof(NAME_FUNCS));\n\t\tMemCheck_on();\n\t\tif (!name_funcs)\n\t\t\t{\n\t\t\tOBJerr(OBJ_F_OBJ_NAME_NEW_INDEX,ERR_R_MALLOC_FAILURE);\n\t\t\treturn(0);\n\t\t\t}\n\t\tname_funcs->hash_func = lh_strhash;\n\t\tname_funcs->cmp_func = OPENSSL_strcmp;\n\t\tname_funcs->free_func = 0;\n\t\tMemCheck_off();\n\t\tsk_NAME_FUNCS_push(name_funcs_stack,name_funcs);\n\t\tMemCheck_on();\n\t\t}\n\tname_funcs = sk_NAME_FUNCS_value(name_funcs_stack, ret);\n\tif (hash_func != NULL)\n\t\tname_funcs->hash_func = hash_func;\n\tif (cmp_func != NULL)\n\t\tname_funcs->cmp_func = cmp_func;\n\tif (free_func != NULL)\n\t\tname_funcs->free_func = free_func;\n\treturn(ret);\n\t}', 'int sk_num(const _STACK *st)\n{\n\tif(st == NULL) return -1;\n\treturn st->num;\n}', 'void *sk_value(const _STACK *st, int i)\n{\n\tif(!st || (i < 0) || (i >= st->num)) return NULL;\n\treturn st->data[i];\n}'] |
25,911 | 0 | https://github.com/libav/libav/blob/bb4afa13dd3264832bc379bbfefe1db8cf4f0e40/libavformat/oggdec.c/#L184 | static int
ogg_new_buf(struct ogg *ogg, int idx)
{
struct ogg_stream *os = ogg->streams + idx;
uint8_t *nb = av_malloc(os->bufsize);
int size = os->bufpos - os->pstart;
if(os->buf){
memcpy(nb, os->buf + os->pstart, size);
av_free(os->buf);
}
os->buf = nb;
os->bufpos = size;
os->pstart = 0;
return 0;
} | ['static int\nogg_new_buf(struct ogg *ogg, int idx)\n{\n struct ogg_stream *os = ogg->streams + idx;\n uint8_t *nb = av_malloc(os->bufsize);\n int size = os->bufpos - os->pstart;\n if(os->buf){\n memcpy(nb, os->buf + os->pstart, size);\n av_free(os->buf);\n }\n os->buf = nb;\n os->bufpos = size;\n os->pstart = 0;\n return 0;\n}', 'void *av_malloc(FF_INTERNAL_MEM_TYPE size)\n{\n void *ptr = NULL;\n#if CONFIG_MEMALIGN_HACK\n long diff;\n#endif\n if(size > (INT_MAX-16) )\n return NULL;\n#if CONFIG_MEMALIGN_HACK\n ptr = malloc(size+16);\n if(!ptr)\n return ptr;\n diff= ((-(long)ptr - 1)&15) + 1;\n ptr = (char*)ptr + diff;\n ((char*)ptr)[-1]= diff;\n#elif HAVE_POSIX_MEMALIGN\n if (posix_memalign(&ptr,16,size))\n ptr = NULL;\n#elif HAVE_MEMALIGN\n ptr = memalign(16,size);\n#else\n ptr = malloc(size);\n#endif\n return ptr;\n}'] |
25,912 | 0 | https://github.com/libav/libav/blob/a1c1c7801918c46da5525cfddb99f3467c522b02/libavcodec/rv40.c/#L539 | static void rv40_loop_filter(RV34DecContext *r, int row)
{
MpegEncContext *s = &r->s;
int mb_pos, mb_x;
int i, j, k;
uint8_t *Y, *C;
int alpha, beta, betaY, betaC;
int q;
int mbtype[4];
int mb_strong[4];
int clip[4];
int cbp[4];
int uvcbp[4][2];
int mvmasks[4];
mb_pos = row * s->mb_stride;
for(mb_x = 0; mb_x < s->mb_width; mb_x++, mb_pos++){
int mbtype = s->current_picture_ptr->mb_type[mb_pos];
if(IS_INTRA(mbtype) || IS_SEPARATE_DC(mbtype))
r->cbp_luma [mb_pos] = 0xFFFF;
if(IS_INTRA(mbtype))
r->cbp_chroma[mb_pos] = 0xFF;
}
mb_pos = row * s->mb_stride;
for(mb_x = 0; mb_x < s->mb_width; mb_x++, mb_pos++){
int y_h_deblock, y_v_deblock;
int c_v_deblock[2], c_h_deblock[2];
int clip_left;
int avail[4];
int y_to_deblock, c_to_deblock[2];
q = s->current_picture_ptr->qscale_table[mb_pos];
alpha = rv40_alpha_tab[q];
beta = rv40_beta_tab [q];
betaY = betaC = beta * 3;
if(s->width * s->height <= 176*144)
betaY += beta;
avail[0] = 1;
avail[1] = row;
avail[2] = mb_x;
avail[3] = row < s->mb_height - 1;
for(i = 0; i < 4; i++){
if(avail[i]){
int pos = mb_pos + neighbour_offs_x[i] + neighbour_offs_y[i]*s->mb_stride;
mvmasks[i] = r->deblock_coefs[pos];
mbtype [i] = s->current_picture_ptr->mb_type[pos];
cbp [i] = r->cbp_luma[pos];
uvcbp[i][0] = r->cbp_chroma[pos] & 0xF;
uvcbp[i][1] = r->cbp_chroma[pos] >> 4;
}else{
mvmasks[i] = 0;
mbtype [i] = mbtype[0];
cbp [i] = 0;
uvcbp[i][0] = uvcbp[i][1] = 0;
}
mb_strong[i] = IS_INTRA(mbtype[i]) || IS_SEPARATE_DC(mbtype[i]);
clip[i] = rv40_filter_clip_tbl[mb_strong[i] + 1][q];
}
y_to_deblock = cbp[POS_CUR]
| (cbp[POS_BOTTOM] << 16)
| mvmasks[POS_CUR]
| (mvmasks[POS_BOTTOM] << 16);
y_h_deblock = y_to_deblock
| ((cbp[POS_CUR] << 4) & ~MASK_Y_TOP_ROW)
| ((cbp[POS_TOP] & MASK_Y_LAST_ROW) >> 12);
y_v_deblock = y_to_deblock
| ((cbp[POS_CUR] << 1) & ~MASK_Y_LEFT_COL)
| ((cbp[POS_LEFT] & MASK_Y_RIGHT_COL) >> 3);
if(!mb_x)
y_v_deblock &= ~MASK_Y_LEFT_COL;
if(!row)
y_h_deblock &= ~MASK_Y_TOP_ROW;
if(row == s->mb_height - 1 || (mb_strong[POS_CUR] || mb_strong[POS_BOTTOM]))
y_h_deblock &= ~(MASK_Y_TOP_ROW << 16);
for(i = 0; i < 2; i++){
c_to_deblock[i] = (uvcbp[POS_BOTTOM][i] << 4) | uvcbp[POS_CUR][i];
c_v_deblock[i] = c_to_deblock[i]
| ((uvcbp[POS_CUR] [i] << 1) & ~MASK_C_LEFT_COL)
| ((uvcbp[POS_LEFT][i] & MASK_C_RIGHT_COL) >> 1);
c_h_deblock[i] = c_to_deblock[i]
| ((uvcbp[POS_TOP][i] & MASK_C_LAST_ROW) >> 2)
| (uvcbp[POS_CUR][i] << 2);
if(!mb_x)
c_v_deblock[i] &= ~MASK_C_LEFT_COL;
if(!row)
c_h_deblock[i] &= ~MASK_C_TOP_ROW;
if(row == s->mb_height - 1 || mb_strong[POS_CUR] || mb_strong[POS_BOTTOM])
c_h_deblock[i] &= ~(MASK_C_TOP_ROW << 4);
}
for(j = 0; j < 16; j += 4){
Y = s->current_picture_ptr->data[0] + mb_x*16 + (row*16 + j) * s->linesize;
for(i = 0; i < 4; i++, Y += 4){
int ij = i + j;
int clip_cur = y_to_deblock & (MASK_CUR << ij) ? clip[POS_CUR] : 0;
int dither = j ? ij : i*4;
if(y_h_deblock & (MASK_BOTTOM << ij)){
rv40_h_loop_filter(Y+4*s->linesize, s->linesize, dither,
y_to_deblock & (MASK_BOTTOM << ij) ? clip[POS_CUR] : 0,
clip_cur,
alpha, beta, betaY, 0, 0);
}
if(y_v_deblock & (MASK_CUR << ij) && (i || !(mb_strong[POS_CUR] || mb_strong[POS_LEFT]))){
if(!i)
clip_left = (cbp[POS_LEFT] | mvmasks[POS_LEFT]) & (MASK_RIGHT << j) ? clip[POS_LEFT] : 0;
else
clip_left = y_to_deblock & (MASK_CUR << (ij-1)) ? clip[POS_CUR] : 0;
rv40_v_loop_filter(Y, s->linesize, dither,
clip_cur,
clip_left,
alpha, beta, betaY, 0, 0);
}
if(!j && y_h_deblock & (MASK_CUR << i) && (mb_strong[POS_CUR] || mb_strong[POS_TOP])){
rv40_h_loop_filter(Y, s->linesize, dither,
clip_cur,
(cbp[POS_TOP] | mvmasks[POS_TOP]) & (MASK_TOP << i) ? clip[POS_TOP] : 0,
alpha, beta, betaY, 0, 1);
}
if(y_v_deblock & (MASK_CUR << ij) && !i && (mb_strong[POS_CUR] || mb_strong[POS_LEFT])){
clip_left = (cbp[POS_LEFT] | mvmasks[POS_LEFT]) & (MASK_RIGHT << j) ? clip[POS_LEFT] : 0;
rv40_v_loop_filter(Y, s->linesize, dither,
clip_cur,
clip_left,
alpha, beta, betaY, 0, 1);
}
}
}
for(k = 0; k < 2; k++){
for(j = 0; j < 2; j++){
C = s->current_picture_ptr->data[k+1] + mb_x*8 + (row*8 + j*4) * s->uvlinesize;
for(i = 0; i < 2; i++, C += 4){
int ij = i + j*2;
int clip_cur = c_to_deblock[k] & (MASK_CUR << ij) ? clip[POS_CUR] : 0;
if(c_h_deblock[k] & (MASK_CUR << (ij+2))){
int clip_bot = c_to_deblock[k] & (MASK_CUR << (ij+2)) ? clip[POS_CUR] : 0;
rv40_h_loop_filter(C+4*s->uvlinesize, s->uvlinesize, i*8,
clip_bot,
clip_cur,
alpha, beta, betaC, 1, 0);
}
if((c_v_deblock[k] & (MASK_CUR << ij)) && (i || !(mb_strong[POS_CUR] || mb_strong[POS_LEFT]))){
if(!i)
clip_left = uvcbp[POS_LEFT][k] & (MASK_CUR << (2*j+1)) ? clip[POS_LEFT] : 0;
else
clip_left = c_to_deblock[k] & (MASK_CUR << (ij-1)) ? clip[POS_CUR] : 0;
rv40_v_loop_filter(C, s->uvlinesize, j*8,
clip_cur,
clip_left,
alpha, beta, betaC, 1, 0);
}
if(!j && c_h_deblock[k] & (MASK_CUR << ij) && (mb_strong[POS_CUR] || mb_strong[POS_TOP])){
int clip_top = uvcbp[POS_TOP][k] & (MASK_CUR << (ij+2)) ? clip[POS_TOP] : 0;
rv40_h_loop_filter(C, s->uvlinesize, i*8,
clip_cur,
clip_top,
alpha, beta, betaC, 1, 1);
}
if(c_v_deblock[k] & (MASK_CUR << ij) && !i && (mb_strong[POS_CUR] || mb_strong[POS_LEFT])){
clip_left = uvcbp[POS_LEFT][k] & (MASK_CUR << (2*j+1)) ? clip[POS_LEFT] : 0;
rv40_v_loop_filter(C, s->uvlinesize, j*8,
clip_cur,
clip_left,
alpha, beta, betaC, 1, 1);
}
}
}
}
}
} | ['static void rv40_loop_filter(RV34DecContext *r, int row)\n{\n MpegEncContext *s = &r->s;\n int mb_pos, mb_x;\n int i, j, k;\n uint8_t *Y, *C;\n int alpha, beta, betaY, betaC;\n int q;\n int mbtype[4];\n int mb_strong[4];\n int clip[4];\n int cbp[4];\n int uvcbp[4][2];\n int mvmasks[4];\n mb_pos = row * s->mb_stride;\n for(mb_x = 0; mb_x < s->mb_width; mb_x++, mb_pos++){\n int mbtype = s->current_picture_ptr->mb_type[mb_pos];\n if(IS_INTRA(mbtype) || IS_SEPARATE_DC(mbtype))\n r->cbp_luma [mb_pos] = 0xFFFF;\n if(IS_INTRA(mbtype))\n r->cbp_chroma[mb_pos] = 0xFF;\n }\n mb_pos = row * s->mb_stride;\n for(mb_x = 0; mb_x < s->mb_width; mb_x++, mb_pos++){\n int y_h_deblock, y_v_deblock;\n int c_v_deblock[2], c_h_deblock[2];\n int clip_left;\n int avail[4];\n int y_to_deblock, c_to_deblock[2];\n q = s->current_picture_ptr->qscale_table[mb_pos];\n alpha = rv40_alpha_tab[q];\n beta = rv40_beta_tab [q];\n betaY = betaC = beta * 3;\n if(s->width * s->height <= 176*144)\n betaY += beta;\n avail[0] = 1;\n avail[1] = row;\n avail[2] = mb_x;\n avail[3] = row < s->mb_height - 1;\n for(i = 0; i < 4; i++){\n if(avail[i]){\n int pos = mb_pos + neighbour_offs_x[i] + neighbour_offs_y[i]*s->mb_stride;\n mvmasks[i] = r->deblock_coefs[pos];\n mbtype [i] = s->current_picture_ptr->mb_type[pos];\n cbp [i] = r->cbp_luma[pos];\n uvcbp[i][0] = r->cbp_chroma[pos] & 0xF;\n uvcbp[i][1] = r->cbp_chroma[pos] >> 4;\n }else{\n mvmasks[i] = 0;\n mbtype [i] = mbtype[0];\n cbp [i] = 0;\n uvcbp[i][0] = uvcbp[i][1] = 0;\n }\n mb_strong[i] = IS_INTRA(mbtype[i]) || IS_SEPARATE_DC(mbtype[i]);\n clip[i] = rv40_filter_clip_tbl[mb_strong[i] + 1][q];\n }\n y_to_deblock = cbp[POS_CUR]\n | (cbp[POS_BOTTOM] << 16)\n | mvmasks[POS_CUR]\n | (mvmasks[POS_BOTTOM] << 16);\n y_h_deblock = y_to_deblock\n | ((cbp[POS_CUR] << 4) & ~MASK_Y_TOP_ROW)\n | ((cbp[POS_TOP] & MASK_Y_LAST_ROW) >> 12);\n y_v_deblock = y_to_deblock\n | ((cbp[POS_CUR] << 1) & ~MASK_Y_LEFT_COL)\n | ((cbp[POS_LEFT] & MASK_Y_RIGHT_COL) >> 3);\n if(!mb_x)\n y_v_deblock &= ~MASK_Y_LEFT_COL;\n if(!row)\n y_h_deblock &= ~MASK_Y_TOP_ROW;\n if(row == s->mb_height - 1 || (mb_strong[POS_CUR] || mb_strong[POS_BOTTOM]))\n y_h_deblock &= ~(MASK_Y_TOP_ROW << 16);\n for(i = 0; i < 2; i++){\n c_to_deblock[i] = (uvcbp[POS_BOTTOM][i] << 4) | uvcbp[POS_CUR][i];\n c_v_deblock[i] = c_to_deblock[i]\n | ((uvcbp[POS_CUR] [i] << 1) & ~MASK_C_LEFT_COL)\n | ((uvcbp[POS_LEFT][i] & MASK_C_RIGHT_COL) >> 1);\n c_h_deblock[i] = c_to_deblock[i]\n | ((uvcbp[POS_TOP][i] & MASK_C_LAST_ROW) >> 2)\n | (uvcbp[POS_CUR][i] << 2);\n if(!mb_x)\n c_v_deblock[i] &= ~MASK_C_LEFT_COL;\n if(!row)\n c_h_deblock[i] &= ~MASK_C_TOP_ROW;\n if(row == s->mb_height - 1 || mb_strong[POS_CUR] || mb_strong[POS_BOTTOM])\n c_h_deblock[i] &= ~(MASK_C_TOP_ROW << 4);\n }\n for(j = 0; j < 16; j += 4){\n Y = s->current_picture_ptr->data[0] + mb_x*16 + (row*16 + j) * s->linesize;\n for(i = 0; i < 4; i++, Y += 4){\n int ij = i + j;\n int clip_cur = y_to_deblock & (MASK_CUR << ij) ? clip[POS_CUR] : 0;\n int dither = j ? ij : i*4;\n if(y_h_deblock & (MASK_BOTTOM << ij)){\n rv40_h_loop_filter(Y+4*s->linesize, s->linesize, dither,\n y_to_deblock & (MASK_BOTTOM << ij) ? clip[POS_CUR] : 0,\n clip_cur,\n alpha, beta, betaY, 0, 0);\n }\n if(y_v_deblock & (MASK_CUR << ij) && (i || !(mb_strong[POS_CUR] || mb_strong[POS_LEFT]))){\n if(!i)\n clip_left = (cbp[POS_LEFT] | mvmasks[POS_LEFT]) & (MASK_RIGHT << j) ? clip[POS_LEFT] : 0;\n else\n clip_left = y_to_deblock & (MASK_CUR << (ij-1)) ? clip[POS_CUR] : 0;\n rv40_v_loop_filter(Y, s->linesize, dither,\n clip_cur,\n clip_left,\n alpha, beta, betaY, 0, 0);\n }\n if(!j && y_h_deblock & (MASK_CUR << i) && (mb_strong[POS_CUR] || mb_strong[POS_TOP])){\n rv40_h_loop_filter(Y, s->linesize, dither,\n clip_cur,\n (cbp[POS_TOP] | mvmasks[POS_TOP]) & (MASK_TOP << i) ? clip[POS_TOP] : 0,\n alpha, beta, betaY, 0, 1);\n }\n if(y_v_deblock & (MASK_CUR << ij) && !i && (mb_strong[POS_CUR] || mb_strong[POS_LEFT])){\n clip_left = (cbp[POS_LEFT] | mvmasks[POS_LEFT]) & (MASK_RIGHT << j) ? clip[POS_LEFT] : 0;\n rv40_v_loop_filter(Y, s->linesize, dither,\n clip_cur,\n clip_left,\n alpha, beta, betaY, 0, 1);\n }\n }\n }\n for(k = 0; k < 2; k++){\n for(j = 0; j < 2; j++){\n C = s->current_picture_ptr->data[k+1] + mb_x*8 + (row*8 + j*4) * s->uvlinesize;\n for(i = 0; i < 2; i++, C += 4){\n int ij = i + j*2;\n int clip_cur = c_to_deblock[k] & (MASK_CUR << ij) ? clip[POS_CUR] : 0;\n if(c_h_deblock[k] & (MASK_CUR << (ij+2))){\n int clip_bot = c_to_deblock[k] & (MASK_CUR << (ij+2)) ? clip[POS_CUR] : 0;\n rv40_h_loop_filter(C+4*s->uvlinesize, s->uvlinesize, i*8,\n clip_bot,\n clip_cur,\n alpha, beta, betaC, 1, 0);\n }\n if((c_v_deblock[k] & (MASK_CUR << ij)) && (i || !(mb_strong[POS_CUR] || mb_strong[POS_LEFT]))){\n if(!i)\n clip_left = uvcbp[POS_LEFT][k] & (MASK_CUR << (2*j+1)) ? clip[POS_LEFT] : 0;\n else\n clip_left = c_to_deblock[k] & (MASK_CUR << (ij-1)) ? clip[POS_CUR] : 0;\n rv40_v_loop_filter(C, s->uvlinesize, j*8,\n clip_cur,\n clip_left,\n alpha, beta, betaC, 1, 0);\n }\n if(!j && c_h_deblock[k] & (MASK_CUR << ij) && (mb_strong[POS_CUR] || mb_strong[POS_TOP])){\n int clip_top = uvcbp[POS_TOP][k] & (MASK_CUR << (ij+2)) ? clip[POS_TOP] : 0;\n rv40_h_loop_filter(C, s->uvlinesize, i*8,\n clip_cur,\n clip_top,\n alpha, beta, betaC, 1, 1);\n }\n if(c_v_deblock[k] & (MASK_CUR << ij) && !i && (mb_strong[POS_CUR] || mb_strong[POS_LEFT])){\n clip_left = uvcbp[POS_LEFT][k] & (MASK_CUR << (2*j+1)) ? clip[POS_LEFT] : 0;\n rv40_v_loop_filter(C, s->uvlinesize, j*8,\n clip_cur,\n clip_left,\n alpha, beta, betaC, 1, 1);\n }\n }\n }\n }\n }\n}'] |
25,913 | 0 | https://github.com/openssl/openssl/blob/6bc62a620e715f7580651ca932eab052aa527886/crypto/bn/bn_ctx.c/#L268 | static unsigned int BN_STACK_pop(BN_STACK *st)
{
return st->indexes[--(st->depth)];
} | ['int EC_POINTs_mul(const EC_GROUP *group, EC_POINT *r, const BIGNUM *scalar,\n size_t num, const EC_POINT *points[],\n const BIGNUM *scalars[], BN_CTX *ctx)\n{\n int ret = 0;\n size_t i = 0;\n BN_CTX *new_ctx = NULL;\n if ((scalar == NULL) && (num == 0)) {\n return EC_POINT_set_to_infinity(group, r);\n }\n if (!ec_point_is_compat(r, group)) {\n ECerr(EC_F_EC_POINTS_MUL, EC_R_INCOMPATIBLE_OBJECTS);\n return 0;\n }\n for (i = 0; i < num; i++) {\n if (!ec_point_is_compat(points[i], group)) {\n ECerr(EC_F_EC_POINTS_MUL, EC_R_INCOMPATIBLE_OBJECTS);\n return 0;\n }\n }\n if (ctx == NULL && (ctx = new_ctx = BN_CTX_secure_new()) == NULL) {\n ECerr(EC_F_EC_POINTS_MUL, ERR_R_INTERNAL_ERROR);\n return 0;\n }\n if (group->meth->mul != NULL)\n ret = group->meth->mul(group, r, scalar, num, points, scalars, ctx);\n else\n ret = ec_wNAF_mul(group, r, scalar, num, points, scalars, ctx);\n BN_CTX_free(new_ctx);\n return ret;\n}', 'int ec_wNAF_mul(const EC_GROUP *group, EC_POINT *r, const BIGNUM *scalar,\n size_t num, const EC_POINT *points[], const BIGNUM *scalars[],\n BN_CTX *ctx)\n{\n const EC_POINT *generator = NULL;\n EC_POINT *tmp = NULL;\n size_t totalnum;\n size_t blocksize = 0, numblocks = 0;\n size_t pre_points_per_block = 0;\n size_t i, j;\n int k;\n int r_is_inverted = 0;\n int r_is_at_infinity = 1;\n size_t *wsize = NULL;\n signed char **wNAF = NULL;\n size_t *wNAF_len = NULL;\n size_t max_len = 0;\n size_t num_val;\n EC_POINT **val = NULL;\n EC_POINT **v;\n EC_POINT ***val_sub = NULL;\n const EC_PRE_COMP *pre_comp = NULL;\n int num_scalar = 0;\n int ret = 0;\n if (!BN_is_zero(group->order) && !BN_is_zero(group->cofactor)) {\n if ((scalar != NULL) && (num == 0)) {\n return ec_scalar_mul_ladder(group, r, scalar, NULL, ctx);\n }\n if ((scalar == NULL) && (num == 1)) {\n return ec_scalar_mul_ladder(group, r, scalars[0], points[0], ctx);\n }\n }\n if (scalar != NULL) {\n generator = EC_GROUP_get0_generator(group);\n if (generator == NULL) {\n ECerr(EC_F_EC_WNAF_MUL, EC_R_UNDEFINED_GENERATOR);\n goto err;\n }\n pre_comp = group->pre_comp.ec;\n if (pre_comp && pre_comp->numblocks\n && (EC_POINT_cmp(group, generator, pre_comp->points[0], ctx) ==\n 0)) {\n blocksize = pre_comp->blocksize;\n numblocks = (BN_num_bits(scalar) / blocksize) + 1;\n if (numblocks > pre_comp->numblocks)\n numblocks = pre_comp->numblocks;\n pre_points_per_block = (size_t)1 << (pre_comp->w - 1);\n if (pre_comp->num != (pre_comp->numblocks * pre_points_per_block)) {\n ECerr(EC_F_EC_WNAF_MUL, ERR_R_INTERNAL_ERROR);\n goto err;\n }\n } else {\n pre_comp = NULL;\n numblocks = 1;\n num_scalar = 1;\n }\n }\n totalnum = num + numblocks;\n wsize = OPENSSL_malloc(totalnum * sizeof(wsize[0]));\n wNAF_len = OPENSSL_malloc(totalnum * sizeof(wNAF_len[0]));\n wNAF = OPENSSL_malloc((totalnum + 1) * sizeof(wNAF[0]));\n val_sub = OPENSSL_malloc(totalnum * sizeof(val_sub[0]));\n if (wNAF != NULL)\n wNAF[0] = NULL;\n if (wsize == NULL || wNAF_len == NULL || wNAF == NULL || val_sub == NULL) {\n ECerr(EC_F_EC_WNAF_MUL, ERR_R_MALLOC_FAILURE);\n goto err;\n }\n num_val = 0;\n for (i = 0; i < num + num_scalar; i++) {\n size_t bits;\n bits = i < num ? BN_num_bits(scalars[i]) : BN_num_bits(scalar);\n wsize[i] = EC_window_bits_for_scalar_size(bits);\n num_val += (size_t)1 << (wsize[i] - 1);\n wNAF[i + 1] = NULL;\n wNAF[i] =\n bn_compute_wNAF((i < num ? scalars[i] : scalar), wsize[i],\n &wNAF_len[i]);\n if (wNAF[i] == NULL)\n goto err;\n if (wNAF_len[i] > max_len)\n max_len = wNAF_len[i];\n }\n if (numblocks) {\n if (pre_comp == NULL) {\n if (num_scalar != 1) {\n ECerr(EC_F_EC_WNAF_MUL, ERR_R_INTERNAL_ERROR);\n goto err;\n }\n } else {\n signed char *tmp_wNAF = NULL;\n size_t tmp_len = 0;\n if (num_scalar != 0) {\n ECerr(EC_F_EC_WNAF_MUL, ERR_R_INTERNAL_ERROR);\n goto err;\n }\n wsize[num] = pre_comp->w;\n tmp_wNAF = bn_compute_wNAF(scalar, wsize[num], &tmp_len);\n if (!tmp_wNAF)\n goto err;\n if (tmp_len <= max_len) {\n numblocks = 1;\n totalnum = num + 1;\n wNAF[num] = tmp_wNAF;\n wNAF[num + 1] = NULL;\n wNAF_len[num] = tmp_len;\n val_sub[num] = pre_comp->points;\n } else {\n signed char *pp;\n EC_POINT **tmp_points;\n if (tmp_len < numblocks * blocksize) {\n numblocks = (tmp_len + blocksize - 1) / blocksize;\n if (numblocks > pre_comp->numblocks) {\n ECerr(EC_F_EC_WNAF_MUL, ERR_R_INTERNAL_ERROR);\n OPENSSL_free(tmp_wNAF);\n goto err;\n }\n totalnum = num + numblocks;\n }\n pp = tmp_wNAF;\n tmp_points = pre_comp->points;\n for (i = num; i < totalnum; i++) {\n if (i < totalnum - 1) {\n wNAF_len[i] = blocksize;\n if (tmp_len < blocksize) {\n ECerr(EC_F_EC_WNAF_MUL, ERR_R_INTERNAL_ERROR);\n OPENSSL_free(tmp_wNAF);\n goto err;\n }\n tmp_len -= blocksize;\n } else\n wNAF_len[i] = tmp_len;\n wNAF[i + 1] = NULL;\n wNAF[i] = OPENSSL_malloc(wNAF_len[i]);\n if (wNAF[i] == NULL) {\n ECerr(EC_F_EC_WNAF_MUL, ERR_R_MALLOC_FAILURE);\n OPENSSL_free(tmp_wNAF);\n goto err;\n }\n memcpy(wNAF[i], pp, wNAF_len[i]);\n if (wNAF_len[i] > max_len)\n max_len = wNAF_len[i];\n if (*tmp_points == NULL) {\n ECerr(EC_F_EC_WNAF_MUL, ERR_R_INTERNAL_ERROR);\n OPENSSL_free(tmp_wNAF);\n goto err;\n }\n val_sub[i] = tmp_points;\n tmp_points += pre_points_per_block;\n pp += blocksize;\n }\n OPENSSL_free(tmp_wNAF);\n }\n }\n }\n val = OPENSSL_malloc((num_val + 1) * sizeof(val[0]));\n if (val == NULL) {\n ECerr(EC_F_EC_WNAF_MUL, ERR_R_MALLOC_FAILURE);\n goto err;\n }\n val[num_val] = NULL;\n v = val;\n for (i = 0; i < num + num_scalar; i++) {\n val_sub[i] = v;\n for (j = 0; j < ((size_t)1 << (wsize[i] - 1)); j++) {\n *v = EC_POINT_new(group);\n if (*v == NULL)\n goto err;\n v++;\n }\n }\n if (!(v == val + num_val)) {\n ECerr(EC_F_EC_WNAF_MUL, ERR_R_INTERNAL_ERROR);\n goto err;\n }\n if ((tmp = EC_POINT_new(group)) == NULL)\n goto err;\n for (i = 0; i < num + num_scalar; i++) {\n if (i < num) {\n if (!EC_POINT_copy(val_sub[i][0], points[i]))\n goto err;\n } else {\n if (!EC_POINT_copy(val_sub[i][0], generator))\n goto err;\n }\n if (wsize[i] > 1) {\n if (!EC_POINT_dbl(group, tmp, val_sub[i][0], ctx))\n goto err;\n for (j = 1; j < ((size_t)1 << (wsize[i] - 1)); j++) {\n if (!EC_POINT_add\n (group, val_sub[i][j], val_sub[i][j - 1], tmp, ctx))\n goto err;\n }\n }\n }\n if (!EC_POINTs_make_affine(group, num_val, val, ctx))\n goto err;\n r_is_at_infinity = 1;\n for (k = max_len - 1; k >= 0; k--) {\n if (!r_is_at_infinity) {\n if (!EC_POINT_dbl(group, r, r, ctx))\n goto err;\n }\n for (i = 0; i < totalnum; i++) {\n if (wNAF_len[i] > (size_t)k) {\n int digit = wNAF[i][k];\n int is_neg;\n if (digit) {\n is_neg = digit < 0;\n if (is_neg)\n digit = -digit;\n if (is_neg != r_is_inverted) {\n if (!r_is_at_infinity) {\n if (!EC_POINT_invert(group, r, ctx))\n goto err;\n }\n r_is_inverted = !r_is_inverted;\n }\n if (r_is_at_infinity) {\n if (!EC_POINT_copy(r, val_sub[i][digit >> 1]))\n goto err;\n r_is_at_infinity = 0;\n } else {\n if (!EC_POINT_add\n (group, r, r, val_sub[i][digit >> 1], ctx))\n goto err;\n }\n }\n }\n }\n }\n if (r_is_at_infinity) {\n if (!EC_POINT_set_to_infinity(group, r))\n goto err;\n } else {\n if (r_is_inverted)\n if (!EC_POINT_invert(group, r, ctx))\n goto err;\n }\n ret = 1;\n err:\n EC_POINT_free(tmp);\n OPENSSL_free(wsize);\n OPENSSL_free(wNAF_len);\n if (wNAF != NULL) {\n signed char **w;\n for (w = wNAF; *w != NULL; w++)\n OPENSSL_free(*w);\n OPENSSL_free(wNAF);\n }\n if (val != NULL) {\n for (v = val; *v != NULL; v++)\n EC_POINT_clear_free(*v);\n OPENSSL_free(val);\n }\n OPENSSL_free(val_sub);\n return ret;\n}', 'int ec_scalar_mul_ladder(const EC_GROUP *group, EC_POINT *r,\n const BIGNUM *scalar, const EC_POINT *point,\n BN_CTX *ctx)\n{\n int i, cardinality_bits, group_top, kbit, pbit, Z_is_one;\n EC_POINT *p = NULL;\n EC_POINT *s = NULL;\n BIGNUM *k = NULL;\n BIGNUM *lambda = NULL;\n BIGNUM *cardinality = NULL;\n int ret = 0;\n if (point != NULL && EC_POINT_is_at_infinity(group, point))\n return EC_POINT_set_to_infinity(group, r);\n if (BN_is_zero(group->order)) {\n ECerr(EC_F_EC_SCALAR_MUL_LADDER, EC_R_UNKNOWN_ORDER);\n return 0;\n }\n if (BN_is_zero(group->cofactor)) {\n ECerr(EC_F_EC_SCALAR_MUL_LADDER, EC_R_UNKNOWN_COFACTOR);\n return 0;\n }\n BN_CTX_start(ctx);\n if (((p = EC_POINT_new(group)) == NULL)\n || ((s = EC_POINT_new(group)) == NULL)) {\n ECerr(EC_F_EC_SCALAR_MUL_LADDER, ERR_R_MALLOC_FAILURE);\n goto err;\n }\n if (point == NULL) {\n if (!EC_POINT_copy(p, group->generator)) {\n ECerr(EC_F_EC_SCALAR_MUL_LADDER, ERR_R_EC_LIB);\n goto err;\n }\n } else {\n if (!EC_POINT_copy(p, point)) {\n ECerr(EC_F_EC_SCALAR_MUL_LADDER, ERR_R_EC_LIB);\n goto err;\n }\n }\n EC_POINT_BN_set_flags(p, BN_FLG_CONSTTIME);\n EC_POINT_BN_set_flags(r, BN_FLG_CONSTTIME);\n EC_POINT_BN_set_flags(s, BN_FLG_CONSTTIME);\n cardinality = BN_CTX_get(ctx);\n lambda = BN_CTX_get(ctx);\n k = BN_CTX_get(ctx);\n if (k == NULL) {\n ECerr(EC_F_EC_SCALAR_MUL_LADDER, ERR_R_MALLOC_FAILURE);\n goto err;\n }\n if (!BN_mul(cardinality, group->order, group->cofactor, ctx)) {\n ECerr(EC_F_EC_SCALAR_MUL_LADDER, ERR_R_BN_LIB);\n goto err;\n }\n cardinality_bits = BN_num_bits(cardinality);\n group_top = bn_get_top(cardinality);\n if ((bn_wexpand(k, group_top + 2) == NULL)\n || (bn_wexpand(lambda, group_top + 2) == NULL)) {\n ECerr(EC_F_EC_SCALAR_MUL_LADDER, ERR_R_BN_LIB);\n goto err;\n }\n if (!BN_copy(k, scalar)) {\n ECerr(EC_F_EC_SCALAR_MUL_LADDER, ERR_R_BN_LIB);\n goto err;\n }\n BN_set_flags(k, BN_FLG_CONSTTIME);\n if ((BN_num_bits(k) > cardinality_bits) || (BN_is_negative(k))) {\n if (!BN_nnmod(k, k, cardinality, ctx)) {\n ECerr(EC_F_EC_SCALAR_MUL_LADDER, ERR_R_BN_LIB);\n goto err;\n }\n }\n if (!BN_add(lambda, k, cardinality)) {\n ECerr(EC_F_EC_SCALAR_MUL_LADDER, ERR_R_BN_LIB);\n goto err;\n }\n BN_set_flags(lambda, BN_FLG_CONSTTIME);\n if (!BN_add(k, lambda, cardinality)) {\n ECerr(EC_F_EC_SCALAR_MUL_LADDER, ERR_R_BN_LIB);\n goto err;\n }\n kbit = BN_is_bit_set(lambda, cardinality_bits);\n BN_consttime_swap(kbit, k, lambda, group_top + 2);\n group_top = bn_get_top(group->field);\n if ((bn_wexpand(s->X, group_top) == NULL)\n || (bn_wexpand(s->Y, group_top) == NULL)\n || (bn_wexpand(s->Z, group_top) == NULL)\n || (bn_wexpand(r->X, group_top) == NULL)\n || (bn_wexpand(r->Y, group_top) == NULL)\n || (bn_wexpand(r->Z, group_top) == NULL)\n || (bn_wexpand(p->X, group_top) == NULL)\n || (bn_wexpand(p->Y, group_top) == NULL)\n || (bn_wexpand(p->Z, group_top) == NULL)) {\n ECerr(EC_F_EC_SCALAR_MUL_LADDER, ERR_R_BN_LIB);\n goto err;\n }\n if (!ec_point_blind_coordinates(group, p, ctx)) {\n ECerr(EC_F_EC_SCALAR_MUL_LADDER, EC_R_POINT_COORDINATES_BLIND_FAILURE);\n goto err;\n }\n if (!ec_point_ladder_pre(group, r, s, p, ctx)) {\n ECerr(EC_F_EC_SCALAR_MUL_LADDER, EC_R_LADDER_PRE_FAILURE);\n goto err;\n }\n pbit = 1;\n#define EC_POINT_CSWAP(c, a, b, w, t) do { \\\n BN_consttime_swap(c, (a)->X, (b)->X, w); \\\n BN_consttime_swap(c, (a)->Y, (b)->Y, w); \\\n BN_consttime_swap(c, (a)->Z, (b)->Z, w); \\\n t = ((a)->Z_is_one ^ (b)->Z_is_one) & (c); \\\n (a)->Z_is_one ^= (t); \\\n (b)->Z_is_one ^= (t); \\\n} while(0)\n for (i = cardinality_bits - 1; i >= 0; i--) {\n kbit = BN_is_bit_set(k, i) ^ pbit;\n EC_POINT_CSWAP(kbit, r, s, group_top, Z_is_one);\n if (!ec_point_ladder_step(group, r, s, p, ctx)) {\n ECerr(EC_F_EC_SCALAR_MUL_LADDER, EC_R_LADDER_STEP_FAILURE);\n goto err;\n }\n pbit ^= kbit;\n }\n EC_POINT_CSWAP(pbit, r, s, group_top, Z_is_one);\n#undef EC_POINT_CSWAP\n if (!ec_point_ladder_post(group, r, s, p, ctx)) {\n ECerr(EC_F_EC_SCALAR_MUL_LADDER, EC_R_LADDER_POST_FAILURE);\n goto err;\n }\n ret = 1;\n err:\n EC_POINT_free(p);\n EC_POINT_free(s);\n BN_CTX_end(ctx);\n return ret;\n}', 'void BN_CTX_start(BN_CTX *ctx)\n{\n CTXDBG("ENTER BN_CTX_start()", ctx);\n if (ctx->err_stack || ctx->too_many)\n ctx->err_stack++;\n else if (!BN_STACK_push(&ctx->stack, ctx->used)) {\n BNerr(BN_F_BN_CTX_START, BN_R_TOO_MANY_TEMPORARY_VARIABLES);\n ctx->err_stack++;\n }\n CTXDBG("LEAVE BN_CTX_start()", ctx);\n}', 'int BN_mul(BIGNUM *r, const BIGNUM *a, const BIGNUM *b, BN_CTX *ctx)\n{\n int ret = bn_mul_fixed_top(r, a, b, ctx);\n bn_correct_top(r);\n bn_check_top(r);\n return ret;\n}', 'int bn_mul_fixed_top(BIGNUM *r, const BIGNUM *a, const BIGNUM *b, BN_CTX *ctx)\n{\n int ret = 0;\n int top, al, bl;\n BIGNUM *rr;\n#if defined(BN_MUL_COMBA) || defined(BN_RECURSION)\n int i;\n#endif\n#ifdef BN_RECURSION\n BIGNUM *t = NULL;\n int j = 0, k;\n#endif\n bn_check_top(a);\n bn_check_top(b);\n bn_check_top(r);\n al = a->top;\n bl = b->top;\n if ((al == 0) || (bl == 0)) {\n BN_zero(r);\n return 1;\n }\n top = al + bl;\n BN_CTX_start(ctx);\n if ((r == a) || (r == b)) {\n if ((rr = BN_CTX_get(ctx)) == NULL)\n goto err;\n } else\n rr = r;\n#if defined(BN_MUL_COMBA) || defined(BN_RECURSION)\n i = al - bl;\n#endif\n#ifdef BN_MUL_COMBA\n if (i == 0) {\n# if 0\n if (al == 4) {\n if (bn_wexpand(rr, 8) == NULL)\n goto err;\n rr->top = 8;\n bn_mul_comba4(rr->d, a->d, b->d);\n goto end;\n }\n# endif\n if (al == 8) {\n if (bn_wexpand(rr, 16) == NULL)\n goto err;\n rr->top = 16;\n bn_mul_comba8(rr->d, a->d, b->d);\n goto end;\n }\n }\n#endif\n#ifdef BN_RECURSION\n if ((al >= BN_MULL_SIZE_NORMAL) && (bl >= BN_MULL_SIZE_NORMAL)) {\n if (i >= -1 && i <= 1) {\n if (i >= 0) {\n j = BN_num_bits_word((BN_ULONG)al);\n }\n if (i == -1) {\n j = BN_num_bits_word((BN_ULONG)bl);\n }\n j = 1 << (j - 1);\n assert(j <= al || j <= bl);\n k = j + j;\n t = BN_CTX_get(ctx);\n if (t == NULL)\n goto err;\n if (al > j || bl > j) {\n if (bn_wexpand(t, k * 4) == NULL)\n goto err;\n if (bn_wexpand(rr, k * 4) == NULL)\n goto err;\n bn_mul_part_recursive(rr->d, a->d, b->d,\n j, al - j, bl - j, t->d);\n } else {\n if (bn_wexpand(t, k * 2) == NULL)\n goto err;\n if (bn_wexpand(rr, k * 2) == NULL)\n goto err;\n bn_mul_recursive(rr->d, a->d, b->d, j, al - j, bl - j, t->d);\n }\n rr->top = top;\n goto end;\n }\n }\n#endif\n if (bn_wexpand(rr, top) == NULL)\n goto err;\n rr->top = top;\n bn_mul_normal(rr->d, a->d, al, b->d, bl);\n#if defined(BN_MUL_COMBA) || defined(BN_RECURSION)\n end:\n#endif\n rr->neg = a->neg ^ b->neg;\n rr->flags |= BN_FLG_FIXED_TOP;\n if (r != rr && BN_copy(r, rr) == NULL)\n goto err;\n ret = 1;\n err:\n bn_check_top(r);\n BN_CTX_end(ctx);\n return ret;\n}', 'void BN_CTX_end(BN_CTX *ctx)\n{\n CTXDBG("ENTER BN_CTX_end()", ctx);\n if (ctx->err_stack)\n ctx->err_stack--;\n else {\n unsigned int fp = BN_STACK_pop(&ctx->stack);\n if (fp < ctx->used)\n BN_POOL_release(&ctx->pool, ctx->used - fp);\n ctx->used = fp;\n ctx->too_many = 0;\n }\n CTXDBG("LEAVE BN_CTX_end()", ctx);\n}', 'static unsigned int BN_STACK_pop(BN_STACK *st)\n{\n return st->indexes[--(st->depth)];\n}'] |
25,914 | 0 | https://github.com/libav/libav/blob/582963a8156522582e55466be4a59974a8d909a5/libavcodec/twinvq.c/#L1044 | static av_cold void init_bitstream_params(TwinContext *tctx)
{
const ModeTab *mtab = tctx->mtab;
int n_ch = tctx->avctx->channels;
int total_fr_bits = tctx->avctx->bit_rate * mtab->size /
tctx->avctx->sample_rate;
int lsp_bits_per_block = n_ch * (mtab->lsp_bit0 + mtab->lsp_bit1 +
mtab->lsp_split * mtab->lsp_bit2);
int ppc_bits = n_ch * (mtab->pgain_bit + mtab->ppc_shape_bit +
mtab->ppc_period_bit);
int bsize_no_main_cb[3], bse_bits[3], i;
enum FrameType frametype;
for (i = 0; i < 3; i++)
bse_bits[i] = n_ch *
(mtab->fmode[i].bark_n_coef *
mtab->fmode[i].bark_n_bit + 1);
bsize_no_main_cb[2] = bse_bits[2] + lsp_bits_per_block + ppc_bits +
WINDOW_TYPE_BITS + n_ch * GAIN_BITS;
for (i = 0; i < 2; i++)
bsize_no_main_cb[i] =
lsp_bits_per_block + n_ch * GAIN_BITS + WINDOW_TYPE_BITS +
mtab->fmode[i].sub * (bse_bits[i] + n_ch * SUB_GAIN_BITS);
for (i = 0; i < 4; i++) {
int bit_size, vect_size;
int rounded_up, rounded_down, num_rounded_down, num_rounded_up;
if (i == 3) {
bit_size = n_ch * mtab->ppc_shape_bit;
vect_size = n_ch * mtab->ppc_shape_len;
} else {
bit_size = total_fr_bits - bsize_no_main_cb[i];
vect_size = n_ch * mtab->size;
}
tctx->n_div[i] = (bit_size + 13) / 14;
rounded_up = (bit_size + tctx->n_div[i] - 1) /
tctx->n_div[i];
rounded_down = (bit_size) / tctx->n_div[i];
num_rounded_down = rounded_up * tctx->n_div[i] - bit_size;
num_rounded_up = tctx->n_div[i] - num_rounded_down;
tctx->bits_main_spec[0][i][0] = (rounded_up + 1) / 2;
tctx->bits_main_spec[1][i][0] = rounded_up / 2;
tctx->bits_main_spec[0][i][1] = (rounded_down + 1) / 2;
tctx->bits_main_spec[1][i][1] = rounded_down / 2;
tctx->bits_main_spec_change[i] = num_rounded_up;
rounded_up = (vect_size + tctx->n_div[i] - 1) /
tctx->n_div[i];
rounded_down = (vect_size) / tctx->n_div[i];
num_rounded_down = rounded_up * tctx->n_div[i] - vect_size;
num_rounded_up = tctx->n_div[i] - num_rounded_down;
tctx->length[i][0] = rounded_up;
tctx->length[i][1] = rounded_down;
tctx->length_change[i] = num_rounded_up;
}
for (frametype = FT_SHORT; frametype <= FT_PPC; frametype++)
construct_perm_table(tctx, frametype);
} | ['static av_cold void init_bitstream_params(TwinContext *tctx)\n{\n const ModeTab *mtab = tctx->mtab;\n int n_ch = tctx->avctx->channels;\n int total_fr_bits = tctx->avctx->bit_rate * mtab->size /\n tctx->avctx->sample_rate;\n int lsp_bits_per_block = n_ch * (mtab->lsp_bit0 + mtab->lsp_bit1 +\n mtab->lsp_split * mtab->lsp_bit2);\n int ppc_bits = n_ch * (mtab->pgain_bit + mtab->ppc_shape_bit +\n mtab->ppc_period_bit);\n int bsize_no_main_cb[3], bse_bits[3], i;\n enum FrameType frametype;\n for (i = 0; i < 3; i++)\n bse_bits[i] = n_ch *\n (mtab->fmode[i].bark_n_coef *\n mtab->fmode[i].bark_n_bit + 1);\n bsize_no_main_cb[2] = bse_bits[2] + lsp_bits_per_block + ppc_bits +\n WINDOW_TYPE_BITS + n_ch * GAIN_BITS;\n for (i = 0; i < 2; i++)\n bsize_no_main_cb[i] =\n lsp_bits_per_block + n_ch * GAIN_BITS + WINDOW_TYPE_BITS +\n mtab->fmode[i].sub * (bse_bits[i] + n_ch * SUB_GAIN_BITS);\n for (i = 0; i < 4; i++) {\n int bit_size, vect_size;\n int rounded_up, rounded_down, num_rounded_down, num_rounded_up;\n if (i == 3) {\n bit_size = n_ch * mtab->ppc_shape_bit;\n vect_size = n_ch * mtab->ppc_shape_len;\n } else {\n bit_size = total_fr_bits - bsize_no_main_cb[i];\n vect_size = n_ch * mtab->size;\n }\n tctx->n_div[i] = (bit_size + 13) / 14;\n rounded_up = (bit_size + tctx->n_div[i] - 1) /\n tctx->n_div[i];\n rounded_down = (bit_size) / tctx->n_div[i];\n num_rounded_down = rounded_up * tctx->n_div[i] - bit_size;\n num_rounded_up = tctx->n_div[i] - num_rounded_down;\n tctx->bits_main_spec[0][i][0] = (rounded_up + 1) / 2;\n tctx->bits_main_spec[1][i][0] = rounded_up / 2;\n tctx->bits_main_spec[0][i][1] = (rounded_down + 1) / 2;\n tctx->bits_main_spec[1][i][1] = rounded_down / 2;\n tctx->bits_main_spec_change[i] = num_rounded_up;\n rounded_up = (vect_size + tctx->n_div[i] - 1) /\n tctx->n_div[i];\n rounded_down = (vect_size) / tctx->n_div[i];\n num_rounded_down = rounded_up * tctx->n_div[i] - vect_size;\n num_rounded_up = tctx->n_div[i] - num_rounded_down;\n tctx->length[i][0] = rounded_up;\n tctx->length[i][1] = rounded_down;\n tctx->length_change[i] = num_rounded_up;\n }\n for (frametype = FT_SHORT; frametype <= FT_PPC; frametype++)\n construct_perm_table(tctx, frametype);\n}'] |
25,915 | 0 | https://github.com/libav/libav/blob/cbfe5bee2e20df90c581937b2cb4b1535acbf726/libswscale/swscale.c/#L3236 | SwsVector *sws_getGaussianVec(double variance, double quality){
const int length= (int)(variance*quality + 0.5) | 1;
int i;
double *coeff= av_malloc(length*sizeof(double));
double middle= (length-1)*0.5;
SwsVector *vec= av_malloc(sizeof(SwsVector));
vec->coeff= coeff;
vec->length= length;
for (i=0; i<length; i++)
{
double dist= i-middle;
coeff[i]= exp(-dist*dist/(2*variance*variance)) / sqrt(2*variance*PI);
}
sws_normalizeVec(vec, 1.0);
return vec;
} | ['SwsVector *sws_getGaussianVec(double variance, double quality){\n const int length= (int)(variance*quality + 0.5) | 1;\n int i;\n double *coeff= av_malloc(length*sizeof(double));\n double middle= (length-1)*0.5;\n SwsVector *vec= av_malloc(sizeof(SwsVector));\n vec->coeff= coeff;\n vec->length= length;\n for (i=0; i<length; i++)\n {\n double dist= i-middle;\n coeff[i]= exp(-dist*dist/(2*variance*variance)) / sqrt(2*variance*PI);\n }\n sws_normalizeVec(vec, 1.0);\n return vec;\n}', 'void *av_malloc(unsigned int size)\n{\n void *ptr = NULL;\n#if CONFIG_MEMALIGN_HACK\n long diff;\n#endif\n if(size > (INT_MAX-16) )\n return NULL;\n#if CONFIG_MEMALIGN_HACK\n ptr = malloc(size+16);\n if(!ptr)\n return ptr;\n diff= ((-(long)ptr - 1)&15) + 1;\n ptr = (char*)ptr + diff;\n ((char*)ptr)[-1]= diff;\n#elif HAVE_POSIX_MEMALIGN\n if (posix_memalign(&ptr,16,size))\n ptr = NULL;\n#elif HAVE_MEMALIGN\n ptr = memalign(16,size);\n#else\n ptr = malloc(size);\n#endif\n return ptr;\n}'] |
25,916 | 0 | https://github.com/openssl/openssl/blob/c1e744b9125a883450c2239ec55ea606c618a5c0/apps/x509.c/#L1098 | static int sign(X509 *x, EVP_PKEY *pkey, int days, const EVP_MD *digest,
LHASH *conf, char *section)
{
EVP_PKEY *pktmp;
pktmp = X509_get_pubkey(x);
EVP_PKEY_copy_parameters(pktmp,pkey);
EVP_PKEY_save_parameters(pktmp,1);
EVP_PKEY_free(pktmp);
if (!X509_set_issuer_name(x,X509_get_subject_name(x))) goto err;
if (X509_gmtime_adj(X509_get_notBefore(x),0) == NULL) goto err;
if (X509_gmtime_adj(X509_get_notAfter(x),(long)60*60*24*days) == NULL)
goto err;
if (!X509_set_pubkey(x,pkey)) goto err;
if(conf) {
X509V3_CTX ctx;
X509_set_version(x,2);
X509V3_set_ctx(&ctx, x, x, NULL, NULL, 0);
X509V3_set_conf_lhash(&ctx, conf);
if(!X509V3_EXT_add_conf(conf, &ctx, section, x)) goto err;
}
if (!X509_sign(x,pkey,digest)) goto err;
return(1);
err:
ERR_print_errors(bio_err);
return(0);
} | ['static int sign(X509 *x, EVP_PKEY *pkey, int days, const EVP_MD *digest,\n\t\t\t\t\t\tLHASH *conf, char *section)\n\t{\n\tEVP_PKEY *pktmp;\n\tpktmp = X509_get_pubkey(x);\n\tEVP_PKEY_copy_parameters(pktmp,pkey);\n\tEVP_PKEY_save_parameters(pktmp,1);\n\tEVP_PKEY_free(pktmp);\n\tif (!X509_set_issuer_name(x,X509_get_subject_name(x))) goto err;\n\tif (X509_gmtime_adj(X509_get_notBefore(x),0) == NULL) goto err;\n\tif (X509_gmtime_adj(X509_get_notAfter(x),(long)60*60*24*days) == NULL)\n\t\tgoto err;\n\tif (!X509_set_pubkey(x,pkey)) goto err;\n\tif(conf) {\n\t\tX509V3_CTX ctx;\n\t\tX509_set_version(x,2);\n X509V3_set_ctx(&ctx, x, x, NULL, NULL, 0);\n X509V3_set_conf_lhash(&ctx, conf);\n if(!X509V3_EXT_add_conf(conf, &ctx, section, x)) goto err;\n\t}\n\tif (!X509_sign(x,pkey,digest)) goto err;\n\treturn(1);\nerr:\n\tERR_print_errors(bio_err);\n\treturn(0);\n\t}', 'EVP_PKEY *X509_get_pubkey(X509 *x)\n\t{\n\tif ((x == NULL) || (x->cert_info == NULL))\n\t\treturn(NULL);\n\treturn(X509_PUBKEY_get(x->cert_info->key));\n\t}'] |
25,917 | 0 | https://github.com/openssl/openssl/blob/e334d78b87517652cc34825aff7b6fc7be9a1e83/ssl/ssl_lib.c/#L937 | STACK_OF(SSL_CIPHER) *ssl_bytes_to_cipher_list(SSL *s,unsigned char *p,int num,
STACK_OF(SSL_CIPHER) **skp)
{
SSL_CIPHER *c;
STACK_OF(SSL_CIPHER) *sk;
int i,n;
n=ssl_put_cipher_by_char(s,NULL,NULL);
if ((num%n) != 0)
{
SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
return(NULL);
}
if ((skp == NULL) || (*skp == NULL))
sk=sk_SSL_CIPHER_new(NULL);
else
{
sk= *skp;
sk_SSL_CIPHER_zero(sk);
}
for (i=0; i<num; i+=n)
{
c=ssl_get_cipher_by_char(s,p);
p+=n;
if (c != NULL)
{
if (!sk_SSL_CIPHER_push(sk,c))
{
SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,ERR_R_MALLOC_FAILURE);
goto err;
}
}
}
if (skp != NULL)
*skp=sk;
return(sk);
err:
if ((skp == NULL) || (*skp == NULL))
sk_SSL_CIPHER_free(sk);
return(NULL);
} | ['STACK_OF(SSL_CIPHER) *ssl_bytes_to_cipher_list(SSL *s,unsigned char *p,int num,\n\t\t\t\t\t STACK_OF(SSL_CIPHER) **skp)\n\t{\n\tSSL_CIPHER *c;\n\tSTACK_OF(SSL_CIPHER) *sk;\n\tint i,n;\n\tn=ssl_put_cipher_by_char(s,NULL,NULL);\n\tif ((num%n) != 0)\n\t\t{\n\t\tSSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);\n\t\treturn(NULL);\n\t\t}\n\tif ((skp == NULL) || (*skp == NULL))\n\t\tsk=sk_SSL_CIPHER_new(NULL);\n\telse\n\t\t{\n\t\tsk= *skp;\n\t\tsk_SSL_CIPHER_zero(sk);\n\t\t}\n\tfor (i=0; i<num; i+=n)\n\t\t{\n\t\tc=ssl_get_cipher_by_char(s,p);\n\t\tp+=n;\n\t\tif (c != NULL)\n\t\t\t{\n\t\t\tif (!sk_SSL_CIPHER_push(sk,c))\n\t\t\t\t{\n\t\t\t\tSSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,ERR_R_MALLOC_FAILURE);\n\t\t\t\tgoto err;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\tif (skp != NULL)\n\t\t*skp=sk;\n\treturn(sk);\nerr:\n\tif ((skp == NULL) || (*skp == NULL))\n\t\tsk_SSL_CIPHER_free(sk);\n\treturn(NULL);\n\t}', 'STACK *sk_new(int (*c)())\n\t{\n\tSTACK *ret;\n\tint i;\n\tif ((ret=(STACK *)Malloc(sizeof(STACK))) == NULL)\n\t\tgoto err0;\n\tif ((ret->data=(char **)Malloc(sizeof(char *)*MIN_NODES)) == NULL)\n\t\tgoto err1;\n\tfor (i=0; i<MIN_NODES; i++)\n\t\tret->data[i]=NULL;\n\tret->comp=c;\n\tret->num_alloc=MIN_NODES;\n\tret->num=0;\n\tret->sorted=0;\n\treturn(ret);\nerr1:\n\tFree((char *)ret);\nerr0:\n\treturn(NULL);\n\t}', 'int sk_push(STACK *st, char *data)\n\t{\n\treturn(sk_insert(st,data,st->num));\n\t}'] |
25,918 | 0 | https://github.com/openssl/openssl/blob/69588edbaa424beb71c6a9b1be416588232cb78c/crypto/err/err.c/#L648 | void err_delete_thread_state(void)
{
ERR_STATE *state = ERR_get_state();
if (state == NULL)
return;
CRYPTO_THREAD_set_local(&err_thread_local, NULL);
ERR_STATE_free(state);
} | ['void err_delete_thread_state(void)\n{\n ERR_STATE *state = ERR_get_state();\n if (state == NULL)\n return;\n CRYPTO_THREAD_set_local(&err_thread_local, NULL);\n ERR_STATE_free(state);\n}', 'ERR_STATE *ERR_get_state(void)\n{\n ERR_STATE *state = NULL;\n if (!RUN_ONCE(&err_init, err_do_init))\n return NULL;\n state = CRYPTO_THREAD_get_local(&err_thread_local);\n if (state == NULL) {\n state = OPENSSL_zalloc(sizeof(*state));\n if (state == NULL)\n return NULL;\n if (!CRYPTO_THREAD_set_local(&err_thread_local, state)) {\n ERR_STATE_free(state);\n return NULL;\n }\n OPENSSL_init_crypto(OPENSSL_INIT_LOAD_CRYPTO_STRINGS, NULL);\n ossl_init_thread_start(OPENSSL_INIT_THREAD_ERR_STATE);\n }\n return state;\n}', 'int CRYPTO_THREAD_run_once(CRYPTO_ONCE *once, void (*init)(void))\n{\n if (pthread_once(once, init) != 0)\n return 0;\n return 1;\n}', 'void *CRYPTO_THREAD_get_local(CRYPTO_THREAD_LOCAL *key)\n{\n return pthread_getspecific(*key);\n}', 'void *CRYPTO_zalloc(size_t num, const char *file, int line)\n{\n void *ret = CRYPTO_malloc(num, file, line);\n if (ret != NULL)\n memset(ret, 0, num);\n return ret;\n}', 'void *CRYPTO_malloc(size_t num, const char *file, int line)\n{\n void *ret = NULL;\n if (malloc_impl != NULL && malloc_impl != CRYPTO_malloc)\n return malloc_impl(num, file, line);\n if (num <= 0)\n return NULL;\n allow_customize = 0;\n#ifndef OPENSSL_NO_CRYPTO_MDEBUG\n if (call_malloc_debug) {\n CRYPTO_mem_debug_malloc(NULL, num, 0, file, line);\n ret = malloc(num);\n CRYPTO_mem_debug_malloc(ret, num, 1, file, line);\n } else {\n ret = malloc(num);\n }\n#else\n osslargused(file); osslargused(line);\n ret = malloc(num);\n#endif\n return ret;\n}', 'int CRYPTO_THREAD_set_local(CRYPTO_THREAD_LOCAL *key, void *val)\n{\n if (pthread_setspecific(*key, val) != 0)\n return 0;\n return 1;\n}'] |
25,919 | 0 | https://github.com/openssl/openssl/blob/09977dd095f3c655c99b9e1810a213f7eafa7364/crypto/bn/bn_ctx.c/#L319 | static unsigned int BN_STACK_pop(BN_STACK *st)
{
return st->indexes[--(st->depth)];
} | ['int BN_mod_exp_simple(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,\n const BIGNUM *m, BN_CTX *ctx)\n{\n int i, j, bits, ret = 0, wstart, wend, window, wvalue;\n int start = 1;\n BIGNUM *d;\n BIGNUM *val[TABLE_SIZE];\n if (BN_get_flags(p, BN_FLG_CONSTTIME) != 0) {\n BNerr(BN_F_BN_MOD_EXP_SIMPLE, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);\n return -1;\n }\n bits = BN_num_bits(p);\n if (bits == 0) {\n if (BN_is_one(m)) {\n ret = 1;\n BN_zero(r);\n } else {\n ret = BN_one(r);\n }\n return ret;\n }\n BN_CTX_start(ctx);\n d = BN_CTX_get(ctx);\n val[0] = BN_CTX_get(ctx);\n if (!d || !val[0])\n goto err;\n if (!BN_nnmod(val[0], a, m, ctx))\n goto err;\n if (BN_is_zero(val[0])) {\n BN_zero(r);\n ret = 1;\n goto err;\n }\n window = BN_window_bits_for_exponent_size(bits);\n if (window > 1) {\n if (!BN_mod_mul(d, val[0], val[0], m, ctx))\n goto err;\n j = 1 << (window - 1);\n for (i = 1; i < j; i++) {\n if (((val[i] = BN_CTX_get(ctx)) == NULL) ||\n !BN_mod_mul(val[i], val[i - 1], d, m, ctx))\n goto err;\n }\n }\n start = 1;\n wvalue = 0;\n wstart = bits - 1;\n wend = 0;\n if (!BN_one(r))\n goto err;\n for (;;) {\n if (BN_is_bit_set(p, wstart) == 0) {\n if (!start)\n if (!BN_mod_mul(r, r, r, m, ctx))\n goto err;\n if (wstart == 0)\n break;\n wstart--;\n continue;\n }\n j = wstart;\n wvalue = 1;\n wend = 0;\n for (i = 1; i < window; i++) {\n if (wstart - i < 0)\n break;\n if (BN_is_bit_set(p, wstart - i)) {\n wvalue <<= (i - wend);\n wvalue |= 1;\n wend = i;\n }\n }\n j = wend + 1;\n if (!start)\n for (i = 0; i < j; i++) {\n if (!BN_mod_mul(r, r, r, m, ctx))\n goto err;\n }\n if (!BN_mod_mul(r, r, val[wvalue >> 1], m, ctx))\n goto err;\n wstart -= wend + 1;\n wvalue = 0;\n start = 0;\n if (wstart < 0)\n break;\n }\n ret = 1;\n err:\n BN_CTX_end(ctx);\n bn_check_top(r);\n return (ret);\n}', 'void BN_CTX_start(BN_CTX *ctx)\n{\n CTXDBG_ENTRY("BN_CTX_start", ctx);\n if (ctx->err_stack || ctx->too_many)\n ctx->err_stack++;\n else if (!BN_STACK_push(&ctx->stack, ctx->used)) {\n BNerr(BN_F_BN_CTX_START, BN_R_TOO_MANY_TEMPORARY_VARIABLES);\n ctx->err_stack++;\n }\n CTXDBG_EXIT(ctx);\n}', 'int BN_nnmod(BIGNUM *r, const BIGNUM *m, const BIGNUM *d, BN_CTX *ctx)\n{\n if (!(BN_mod(r, m, d, ctx)))\n return 0;\n if (!r->neg)\n return 1;\n return (d->neg ? BN_sub : BN_add) (r, r, d);\n}', 'int BN_div(BIGNUM *dv, BIGNUM *rm, const BIGNUM *num, const BIGNUM *divisor,\n BN_CTX *ctx)\n{\n int norm_shift, i, loop;\n BIGNUM *tmp, wnum, *snum, *sdiv, *res;\n BN_ULONG *resp, *wnump;\n BN_ULONG d0, d1;\n int num_n, div_n;\n int no_branch = 0;\n if ((num->top > 0 && num->d[num->top - 1] == 0) ||\n (divisor->top > 0 && divisor->d[divisor->top - 1] == 0)) {\n BNerr(BN_F_BN_DIV, BN_R_NOT_INITIALIZED);\n return 0;\n }\n bn_check_top(num);\n bn_check_top(divisor);\n if ((BN_get_flags(num, BN_FLG_CONSTTIME) != 0)\n || (BN_get_flags(divisor, BN_FLG_CONSTTIME) != 0)) {\n no_branch = 1;\n }\n bn_check_top(dv);\n bn_check_top(rm);\n if (BN_is_zero(divisor)) {\n BNerr(BN_F_BN_DIV, BN_R_DIV_BY_ZERO);\n return (0);\n }\n if (!no_branch && BN_ucmp(num, divisor) < 0) {\n if (rm != NULL) {\n if (BN_copy(rm, num) == NULL)\n return (0);\n }\n if (dv != NULL)\n BN_zero(dv);\n return (1);\n }\n BN_CTX_start(ctx);\n tmp = BN_CTX_get(ctx);\n snum = BN_CTX_get(ctx);\n sdiv = BN_CTX_get(ctx);\n if (dv == NULL)\n res = BN_CTX_get(ctx);\n else\n res = dv;\n if (sdiv == NULL || res == NULL || tmp == NULL || snum == NULL)\n goto err;\n norm_shift = BN_BITS2 - ((BN_num_bits(divisor)) % BN_BITS2);\n if (!(BN_lshift(sdiv, divisor, norm_shift)))\n goto err;\n sdiv->neg = 0;\n norm_shift += BN_BITS2;\n if (!(BN_lshift(snum, num, norm_shift)))\n goto err;\n snum->neg = 0;\n if (no_branch) {\n if (snum->top <= sdiv->top + 1) {\n if (bn_wexpand(snum, sdiv->top + 2) == NULL)\n goto err;\n for (i = snum->top; i < sdiv->top + 2; i++)\n snum->d[i] = 0;\n snum->top = sdiv->top + 2;\n } else {\n if (bn_wexpand(snum, snum->top + 1) == NULL)\n goto err;\n snum->d[snum->top] = 0;\n snum->top++;\n }\n }\n div_n = sdiv->top;\n num_n = snum->top;\n loop = num_n - div_n;\n wnum.neg = 0;\n wnum.d = &(snum->d[loop]);\n wnum.top = div_n;\n wnum.dmax = snum->dmax - loop;\n d0 = sdiv->d[div_n - 1];\n d1 = (div_n == 1) ? 0 : sdiv->d[div_n - 2];\n wnump = &(snum->d[num_n - 1]);\n res->neg = (num->neg ^ divisor->neg);\n if (!bn_wexpand(res, (loop + 1)))\n goto err;\n res->top = loop - no_branch;\n resp = &(res->d[loop - 1]);\n if (!bn_wexpand(tmp, (div_n + 1)))\n goto err;\n if (!no_branch) {\n if (BN_ucmp(&wnum, sdiv) >= 0) {\n bn_clear_top2max(&wnum);\n bn_sub_words(wnum.d, wnum.d, sdiv->d, div_n);\n *resp = 1;\n } else\n res->top--;\n }\n if (res->top == 0)\n res->neg = 0;\n else\n resp--;\n for (i = 0; i < loop - 1; i++, wnump--, resp--) {\n BN_ULONG q, l0;\n# if defined(BN_DIV3W) && !defined(OPENSSL_NO_ASM)\n BN_ULONG bn_div_3_words(BN_ULONG *, BN_ULONG, BN_ULONG);\n q = bn_div_3_words(wnump, d1, d0);\n# else\n BN_ULONG n0, n1, rem = 0;\n n0 = wnump[0];\n n1 = wnump[-1];\n if (n0 == d0)\n q = BN_MASK2;\n else {\n# ifdef BN_LLONG\n BN_ULLONG t2;\n# if defined(BN_LLONG) && defined(BN_DIV2W) && !defined(bn_div_words)\n q = (BN_ULONG)(((((BN_ULLONG) n0) << BN_BITS2) | n1) / d0);\n# else\n q = bn_div_words(n0, n1, d0);\n# endif\n# ifndef REMAINDER_IS_ALREADY_CALCULATED\n rem = (n1 - q * d0) & BN_MASK2;\n# endif\n t2 = (BN_ULLONG) d1 *q;\n for (;;) {\n if (t2 <= ((((BN_ULLONG) rem) << BN_BITS2) | wnump[-2]))\n break;\n q--;\n rem += d0;\n if (rem < d0)\n break;\n t2 -= d1;\n }\n# else\n BN_ULONG t2l, t2h;\n q = bn_div_words(n0, n1, d0);\n# ifndef REMAINDER_IS_ALREADY_CALCULATED\n rem = (n1 - q * d0) & BN_MASK2;\n# endif\n# if defined(BN_UMULT_LOHI)\n BN_UMULT_LOHI(t2l, t2h, d1, q);\n# elif defined(BN_UMULT_HIGH)\n t2l = d1 * q;\n t2h = BN_UMULT_HIGH(d1, q);\n# else\n {\n BN_ULONG ql, qh;\n t2l = LBITS(d1);\n t2h = HBITS(d1);\n ql = LBITS(q);\n qh = HBITS(q);\n mul64(t2l, t2h, ql, qh);\n }\n# endif\n for (;;) {\n if ((t2h < rem) || ((t2h == rem) && (t2l <= wnump[-2])))\n break;\n q--;\n rem += d0;\n if (rem < d0)\n break;\n if (t2l < d1)\n t2h--;\n t2l -= d1;\n }\n# endif\n }\n# endif\n l0 = bn_mul_words(tmp->d, sdiv->d, div_n, q);\n tmp->d[div_n] = l0;\n wnum.d--;\n if (bn_sub_words(wnum.d, wnum.d, tmp->d, div_n + 1)) {\n q--;\n if (bn_add_words(wnum.d, wnum.d, sdiv->d, div_n))\n (*wnump)++;\n }\n *resp = q;\n }\n bn_correct_top(snum);\n if (rm != NULL) {\n int neg = num->neg;\n BN_rshift(rm, snum, norm_shift);\n if (!BN_is_zero(rm))\n rm->neg = neg;\n bn_check_top(rm);\n }\n if (no_branch)\n bn_correct_top(res);\n BN_CTX_end(ctx);\n return (1);\n err:\n bn_check_top(rm);\n BN_CTX_end(ctx);\n return (0);\n}', 'int BN_mod_mul(BIGNUM *r, const BIGNUM *a, const BIGNUM *b, const BIGNUM *m,\n BN_CTX *ctx)\n{\n BIGNUM *t;\n int ret = 0;\n bn_check_top(a);\n bn_check_top(b);\n bn_check_top(m);\n BN_CTX_start(ctx);\n if ((t = BN_CTX_get(ctx)) == NULL)\n goto err;\n if (a == b) {\n if (!BN_sqr(t, a, ctx))\n goto err;\n } else {\n if (!BN_mul(t, a, b, ctx))\n goto err;\n }\n if (!BN_nnmod(r, t, m, ctx))\n goto err;\n bn_check_top(r);\n ret = 1;\n err:\n BN_CTX_end(ctx);\n return (ret);\n}', 'int BN_mul(BIGNUM *r, const BIGNUM *a, const BIGNUM *b, BN_CTX *ctx)\n{\n int ret = 0;\n int top, al, bl;\n BIGNUM *rr;\n#if defined(BN_MUL_COMBA) || defined(BN_RECURSION)\n int i;\n#endif\n#ifdef BN_RECURSION\n BIGNUM *t = NULL;\n int j = 0, k;\n#endif\n bn_check_top(a);\n bn_check_top(b);\n bn_check_top(r);\n al = a->top;\n bl = b->top;\n if ((al == 0) || (bl == 0)) {\n BN_zero(r);\n return (1);\n }\n top = al + bl;\n BN_CTX_start(ctx);\n if ((r == a) || (r == b)) {\n if ((rr = BN_CTX_get(ctx)) == NULL)\n goto err;\n } else\n rr = r;\n rr->neg = a->neg ^ b->neg;\n#if defined(BN_MUL_COMBA) || defined(BN_RECURSION)\n i = al - bl;\n#endif\n#ifdef BN_MUL_COMBA\n if (i == 0) {\n# if 0\n if (al == 4) {\n if (bn_wexpand(rr, 8) == NULL)\n goto err;\n rr->top = 8;\n bn_mul_comba4(rr->d, a->d, b->d);\n goto end;\n }\n# endif\n if (al == 8) {\n if (bn_wexpand(rr, 16) == NULL)\n goto err;\n rr->top = 16;\n bn_mul_comba8(rr->d, a->d, b->d);\n goto end;\n }\n }\n#endif\n#ifdef BN_RECURSION\n if ((al >= BN_MULL_SIZE_NORMAL) && (bl >= BN_MULL_SIZE_NORMAL)) {\n if (i >= -1 && i <= 1) {\n if (i >= 0) {\n j = BN_num_bits_word((BN_ULONG)al);\n }\n if (i == -1) {\n j = BN_num_bits_word((BN_ULONG)bl);\n }\n j = 1 << (j - 1);\n assert(j <= al || j <= bl);\n k = j + j;\n t = BN_CTX_get(ctx);\n if (t == NULL)\n goto err;\n if (al > j || bl > j) {\n if (bn_wexpand(t, k * 4) == NULL)\n goto err;\n if (bn_wexpand(rr, k * 4) == NULL)\n goto err;\n bn_mul_part_recursive(rr->d, a->d, b->d,\n j, al - j, bl - j, t->d);\n } else {\n if (bn_wexpand(t, k * 2) == NULL)\n goto err;\n if (bn_wexpand(rr, k * 2) == NULL)\n goto err;\n bn_mul_recursive(rr->d, a->d, b->d, j, al - j, bl - j, t->d);\n }\n rr->top = top;\n goto end;\n }\n# if 0\n if (i == 1 && !BN_get_flags(b, BN_FLG_STATIC_DATA)) {\n BIGNUM *tmp_bn = (BIGNUM *)b;\n if (bn_wexpand(tmp_bn, al) == NULL)\n goto err;\n tmp_bn->d[bl] = 0;\n bl++;\n i--;\n } else if (i == -1 && !BN_get_flags(a, BN_FLG_STATIC_DATA)) {\n BIGNUM *tmp_bn = (BIGNUM *)a;\n if (bn_wexpand(tmp_bn, bl) == NULL)\n goto err;\n tmp_bn->d[al] = 0;\n al++;\n i++;\n }\n if (i == 0) {\n j = BN_num_bits_word((BN_ULONG)al);\n j = 1 << (j - 1);\n k = j + j;\n t = BN_CTX_get(ctx);\n if (al == j) {\n if (bn_wexpand(t, k * 2) == NULL)\n goto err;\n if (bn_wexpand(rr, k * 2) == NULL)\n goto err;\n bn_mul_recursive(rr->d, a->d, b->d, al, t->d);\n } else {\n if (bn_wexpand(t, k * 4) == NULL)\n goto err;\n if (bn_wexpand(rr, k * 4) == NULL)\n goto err;\n bn_mul_part_recursive(rr->d, a->d, b->d, al - j, j, t->d);\n }\n rr->top = top;\n goto end;\n }\n# endif\n }\n#endif\n if (bn_wexpand(rr, top) == NULL)\n goto err;\n rr->top = top;\n bn_mul_normal(rr->d, a->d, al, b->d, bl);\n#if defined(BN_MUL_COMBA) || defined(BN_RECURSION)\n end:\n#endif\n bn_correct_top(rr);\n if (r != rr)\n BN_copy(r, rr);\n ret = 1;\n err:\n bn_check_top(r);\n BN_CTX_end(ctx);\n return (ret);\n}', 'void BN_CTX_end(BN_CTX *ctx)\n{\n CTXDBG_ENTRY("BN_CTX_end", ctx);\n if (ctx->err_stack)\n ctx->err_stack--;\n else {\n unsigned int fp = BN_STACK_pop(&ctx->stack);\n if (fp < ctx->used)\n BN_POOL_release(&ctx->pool, ctx->used - fp);\n ctx->used = fp;\n ctx->too_many = 0;\n }\n CTXDBG_EXIT(ctx);\n}', 'static unsigned int BN_STACK_pop(BN_STACK *st)\n{\n return st->indexes[--(st->depth)];\n}'] |
25,920 | 0 | https://github.com/openssl/openssl/blob/aa048aef0b9146f90c06333dedfc105d1f9e2c22/crypto/bn/bn_ctx.c/#L273 | static unsigned int BN_STACK_pop(BN_STACK *st)
{
return st->indexes[--(st->depth)];
} | ['BN_BLINDING *RSA_setup_blinding(RSA *rsa, BN_CTX *in_ctx)\n{\n BIGNUM *e;\n BN_CTX *ctx;\n BN_BLINDING *ret = NULL;\n if (in_ctx == NULL) {\n if ((ctx = BN_CTX_new()) == NULL)\n return 0;\n } else {\n ctx = in_ctx;\n }\n BN_CTX_start(ctx);\n e = BN_CTX_get(ctx);\n if (e == NULL) {\n RSAerr(RSA_F_RSA_SETUP_BLINDING, ERR_R_MALLOC_FAILURE);\n goto err;\n }\n if (rsa->e == NULL) {\n e = rsa_get_public_exp(rsa->d, rsa->p, rsa->q, ctx);\n if (e == NULL) {\n RSAerr(RSA_F_RSA_SETUP_BLINDING, RSA_R_NO_PUBLIC_EXPONENT);\n goto err;\n }\n } else {\n e = rsa->e;\n }\n {\n BIGNUM *n = BN_new();\n if (n == NULL) {\n RSAerr(RSA_F_RSA_SETUP_BLINDING, ERR_R_MALLOC_FAILURE);\n goto err;\n }\n BN_with_flags(n, rsa->n, BN_FLG_CONSTTIME);\n ret = BN_BLINDING_create_param(NULL, e, n, ctx, rsa->meth->bn_mod_exp,\n rsa->_method_mod_n);\n BN_free(n);\n }\n if (ret == NULL) {\n RSAerr(RSA_F_RSA_SETUP_BLINDING, ERR_R_BN_LIB);\n goto err;\n }\n BN_BLINDING_set_current_thread(ret);\n err:\n BN_CTX_end(ctx);\n if (ctx != in_ctx)\n BN_CTX_free(ctx);\n if (e != rsa->e)\n BN_free(e);\n return ret;\n}', 'void BN_CTX_start(BN_CTX *ctx)\n{\n CTXDBG_ENTRY("BN_CTX_start", ctx);\n if (ctx->err_stack || ctx->too_many)\n ctx->err_stack++;\n else if (!BN_STACK_push(&ctx->stack, ctx->used)) {\n BNerr(BN_F_BN_CTX_START, BN_R_TOO_MANY_TEMPORARY_VARIABLES);\n ctx->err_stack++;\n }\n CTXDBG_EXIT(ctx);\n}', 'static BIGNUM *rsa_get_public_exp(const BIGNUM *d, const BIGNUM *p,\n const BIGNUM *q, BN_CTX *ctx)\n{\n BIGNUM *ret = NULL, *r0, *r1, *r2;\n if (d == NULL || p == NULL || q == NULL)\n return NULL;\n BN_CTX_start(ctx);\n r0 = BN_CTX_get(ctx);\n r1 = BN_CTX_get(ctx);\n r2 = BN_CTX_get(ctx);\n if (r2 == NULL)\n goto err;\n if (!BN_sub(r1, p, BN_value_one()))\n goto err;\n if (!BN_sub(r2, q, BN_value_one()))\n goto err;\n if (!BN_mul(r0, r1, r2, ctx))\n goto err;\n ret = BN_mod_inverse(NULL, d, r0, ctx);\n err:\n BN_CTX_end(ctx);\n return ret;\n}', 'int BN_mul(BIGNUM *r, const BIGNUM *a, const BIGNUM *b, BN_CTX *ctx)\n{\n int ret = 0;\n int top, al, bl;\n BIGNUM *rr;\n#if defined(BN_MUL_COMBA) || defined(BN_RECURSION)\n int i;\n#endif\n#ifdef BN_RECURSION\n BIGNUM *t = NULL;\n int j = 0, k;\n#endif\n bn_check_top(a);\n bn_check_top(b);\n bn_check_top(r);\n al = a->top;\n bl = b->top;\n if ((al == 0) || (bl == 0)) {\n BN_zero(r);\n return (1);\n }\n top = al + bl;\n BN_CTX_start(ctx);\n if ((r == a) || (r == b)) {\n if ((rr = BN_CTX_get(ctx)) == NULL)\n goto err;\n } else\n rr = r;\n#if defined(BN_MUL_COMBA) || defined(BN_RECURSION)\n i = al - bl;\n#endif\n#ifdef BN_MUL_COMBA\n if (i == 0) {\n# if 0\n if (al == 4) {\n if (bn_wexpand(rr, 8) == NULL)\n goto err;\n rr->top = 8;\n bn_mul_comba4(rr->d, a->d, b->d);\n goto end;\n }\n# endif\n if (al == 8) {\n if (bn_wexpand(rr, 16) == NULL)\n goto err;\n rr->top = 16;\n bn_mul_comba8(rr->d, a->d, b->d);\n goto end;\n }\n }\n#endif\n#ifdef BN_RECURSION\n if ((al >= BN_MULL_SIZE_NORMAL) && (bl >= BN_MULL_SIZE_NORMAL)) {\n if (i >= -1 && i <= 1) {\n if (i >= 0) {\n j = BN_num_bits_word((BN_ULONG)al);\n }\n if (i == -1) {\n j = BN_num_bits_word((BN_ULONG)bl);\n }\n j = 1 << (j - 1);\n assert(j <= al || j <= bl);\n k = j + j;\n t = BN_CTX_get(ctx);\n if (t == NULL)\n goto err;\n if (al > j || bl > j) {\n if (bn_wexpand(t, k * 4) == NULL)\n goto err;\n if (bn_wexpand(rr, k * 4) == NULL)\n goto err;\n bn_mul_part_recursive(rr->d, a->d, b->d,\n j, al - j, bl - j, t->d);\n } else {\n if (bn_wexpand(t, k * 2) == NULL)\n goto err;\n if (bn_wexpand(rr, k * 2) == NULL)\n goto err;\n bn_mul_recursive(rr->d, a->d, b->d, j, al - j, bl - j, t->d);\n }\n rr->top = top;\n goto end;\n }\n }\n#endif\n if (bn_wexpand(rr, top) == NULL)\n goto err;\n rr->top = top;\n bn_mul_normal(rr->d, a->d, al, b->d, bl);\n#if defined(BN_MUL_COMBA) || defined(BN_RECURSION)\n end:\n#endif\n rr->neg = a->neg ^ b->neg;\n bn_correct_top(rr);\n if (r != rr && BN_copy(r, rr) == NULL)\n goto err;\n ret = 1;\n err:\n bn_check_top(r);\n BN_CTX_end(ctx);\n return (ret);\n}', 'void BN_CTX_end(BN_CTX *ctx)\n{\n CTXDBG_ENTRY("BN_CTX_end", ctx);\n if (ctx->err_stack)\n ctx->err_stack--;\n else {\n unsigned int fp = BN_STACK_pop(&ctx->stack);\n if (fp < ctx->used)\n BN_POOL_release(&ctx->pool, ctx->used - fp);\n ctx->used = fp;\n ctx->too_many = 0;\n }\n CTXDBG_EXIT(ctx);\n}', 'static unsigned int BN_STACK_pop(BN_STACK *st)\n{\n return st->indexes[--(st->depth)];\n}'] |
25,921 | 0 | https://gitlab.com/libtiff/libtiff/blob/6dac309a9701d15ac52d895d566ddae2ed49db9b/libtiff/tif_swab.c/#L113 | void
TIFFSwabArrayOfLong(register uint32* lp, tmsize_t n)
{
register unsigned char *cp;
register unsigned char t;
assert(sizeof(uint32)==4);
while (n-- > 0) {
cp = (unsigned char *)lp;
t = cp[3]; cp[3] = cp[0]; cp[0] = t;
t = cp[2]; cp[2] = cp[1]; cp[1] = t;
lp++;
}
} | ['static int\nwriteSelections(TIFF *in, TIFF **out, struct crop_mask *crop,\n struct image_data *image, struct dump_opts *dump,\n struct buffinfo seg_buffs[], char *mp, char *filename,\n unsigned int *page, unsigned int total_pages)\n {\n int i, page_count;\n int autoindex = 0;\n unsigned char *crop_buff = NULL;\n switch (crop->exp_mode)\n {\n case ONE_FILE_COMPOSITE:\n autoindex = 0;\n crop_buff = seg_buffs[0].buffer;\n if (update_output_file (out, mp, autoindex, filename, page))\n return (1);\n page_count = total_pages;\n if (writeCroppedImage(in, *out, image, dump,\n crop->combined_width,\n crop->combined_length,\n crop_buff, *page, total_pages))\n {\n TIFFError("writeRegions", "Unable to write new image");\n return (-1);\n }\n\t break;\n case ONE_FILE_SEPARATED:\n autoindex = 0;\n if (update_output_file (out, mp, autoindex, filename, page))\n return (1);\n page_count = crop->selections * total_pages;\n for (i = 0; i < crop->selections; i++)\n {\n crop_buff = seg_buffs[i].buffer;\n if (writeCroppedImage(in, *out, image, dump,\n crop->regionlist[i].width,\n crop->regionlist[i].length,\n crop_buff, *page, page_count))\n {\n TIFFError("writeRegions", "Unable to write new image");\n return (-1);\n }\n\t }\n break;\n case FILE_PER_IMAGE_COMPOSITE:\n autoindex = 1;\n if (update_output_file (out, mp, autoindex, filename, page))\n return (1);\n crop_buff = seg_buffs[0].buffer;\n if (writeCroppedImage(in, *out, image, dump,\n crop->combined_width,\n crop->combined_length,\n crop_buff, *page, total_pages))\n {\n TIFFError("writeRegions", "Unable to write new image");\n return (-1);\n }\n break;\n case FILE_PER_IMAGE_SEPARATED:\n autoindex = 1;\n page_count = crop->selections;\n if (update_output_file (out, mp, autoindex, filename, page))\n return (1);\n for (i = 0; i < crop->selections; i++)\n {\n crop_buff = seg_buffs[i].buffer;\n if (writeCroppedImage(in, *out, image, dump,\n crop->regionlist[i].width,\n crop->regionlist[i].length,\n crop_buff, *page, page_count))\n {\n TIFFError("writeRegions", "Unable to write new image");\n return (-1);\n }\n }\n break;\n case FILE_PER_SELECTION:\n autoindex = 1;\n\t page_count = 1;\n for (i = 0; i < crop->selections; i++)\n {\n if (update_output_file (out, mp, autoindex, filename, page))\n return (1);\n crop_buff = seg_buffs[i].buffer;\n if (writeCroppedImage(in, *out, image, dump,\n crop->regionlist[i].width,\n crop->regionlist[i].length,\n crop_buff, *page, page_count))\n {\n TIFFError("writeRegions", "Unable to write new image");\n return (-1);\n }\n }\n\t break;\n default: return (1);\n }\n return (0);\n }', 'static int\nupdate_output_file (TIFF **tiffout, char *mode, int autoindex,\n char *outname, unsigned int *page)\n {\n static int findex = 0;\n char *sep;\n char filenum[16];\n char export_ext[16];\n char exportname[PATH_MAX];\n if (autoindex && (*tiffout != NULL))\n {\n TIFFClose (*tiffout);\n *tiffout = NULL;\n }\n strcpy (export_ext, ".tiff");\n memset (exportname, \'\\0\', PATH_MAX);\n strncpy (exportname, outname, PATH_MAX - 16);\n if (*tiffout == NULL)\n {\n if (autoindex)\n {\n findex++;\n if ((sep = strstr(exportname, ".tif")) || (sep = strstr(exportname, ".TIF")))\n {\n strncpy (export_ext, sep, 5);\n *sep = \'\\0\';\n }\n else\n strncpy (export_ext, ".tiff", 5);\n export_ext[5] = \'\\0\';\n if (findex > MAX_EXPORT_PAGES)\n\t{\n\tTIFFError("update_output_file", "Maximum of %d pages per file exceeded", MAX_EXPORT_PAGES);\n return 1;\n }\n snprintf(filenum, sizeof(filenum), "-%03d%s", findex, export_ext);\n filenum[14] = \'\\0\';\n strncat (exportname, filenum, 15);\n }\n exportname[PATH_MAX - 1] = \'\\0\';\n *tiffout = TIFFOpen(exportname, mode);\n if (*tiffout == NULL)\n {\n TIFFError("update_output_file", "Unable to open output file %s", exportname);\n return 1;\n }\n *page = 0;\n return 0;\n }\n else\n (*page)++;\n return 0;\n }', 'static int\nwriteCroppedImage(TIFF *in, TIFF *out, struct image_data *image,\n struct dump_opts *dump, uint32 width, uint32 length,\n unsigned char *crop_buff, int pagenum, int total_pages)\n {\n uint16 bps, spp;\n uint16 input_compression, input_photometric;\n uint16 input_planar;\n struct cpTag* p;\n input_compression = image->compression;\n input_photometric = image->photometric;\n spp = image->spp;\n bps = image->bps;\n TIFFSetField(out, TIFFTAG_IMAGEWIDTH, width);\n TIFFSetField(out, TIFFTAG_IMAGELENGTH, length);\n TIFFSetField(out, TIFFTAG_BITSPERSAMPLE, bps);\n TIFFSetField(out, TIFFTAG_SAMPLESPERPIXEL, spp);\n#ifdef DEBUG2\n TIFFError("writeCroppedImage", "Input compression: %s",\n\t (input_compression == COMPRESSION_OJPEG) ? "Old Jpeg" :\n\t ((input_compression == COMPRESSION_JPEG) ? "New Jpeg" : "Non Jpeg"));\n#endif\n if (compression != (uint16)-1)\n TIFFSetField(out, TIFFTAG_COMPRESSION, compression);\n else\n {\n if (input_compression == COMPRESSION_OJPEG)\n {\n compression = COMPRESSION_JPEG;\n jpegcolormode = JPEGCOLORMODE_RAW;\n TIFFSetField(out, TIFFTAG_COMPRESSION, COMPRESSION_JPEG);\n }\n else\n CopyField(TIFFTAG_COMPRESSION, compression);\n }\n if (compression == COMPRESSION_JPEG)\n {\n if ((input_photometric == PHOTOMETRIC_PALETTE) ||\n (input_photometric == PHOTOMETRIC_MASK))\n {\n TIFFError ("writeCroppedImage",\n "JPEG compression cannot be used with %s image data",\n \t (input_photometric == PHOTOMETRIC_PALETTE) ?\n "palette" : "mask");\n return (-1);\n }\n if ((input_photometric == PHOTOMETRIC_RGB) &&\n\t(jpegcolormode == JPEGCOLORMODE_RGB))\n TIFFSetField(out, TIFFTAG_PHOTOMETRIC, PHOTOMETRIC_YCBCR);\n else\n\tTIFFSetField(out, TIFFTAG_PHOTOMETRIC, input_photometric);\n }\n else\n {\n if (compression == COMPRESSION_SGILOG || compression == COMPRESSION_SGILOG24)\n {\n TIFFSetField(out, TIFFTAG_PHOTOMETRIC, spp == 1 ?\n\t\t\tPHOTOMETRIC_LOGL : PHOTOMETRIC_LOGLUV);\n }\n else\n {\n if (input_compression == COMPRESSION_SGILOG ||\n input_compression == COMPRESSION_SGILOG24)\n {\n TIFFSetField(out, TIFFTAG_PHOTOMETRIC, spp == 1 ?\n\t\t\t PHOTOMETRIC_LOGL : PHOTOMETRIC_LOGLUV);\n }\n else\n TIFFSetField(out, TIFFTAG_PHOTOMETRIC, image->photometric);\n }\n }\n if (((input_photometric == PHOTOMETRIC_LOGL) ||\n (input_photometric == PHOTOMETRIC_LOGLUV)) &&\n ((compression != COMPRESSION_SGILOG) &&\n (compression != COMPRESSION_SGILOG24)))\n {\n TIFFError("writeCroppedImage",\n "LogL and LogLuv source data require SGI_LOG or SGI_LOG24 compression");\n return (-1);\n }\n if (fillorder != 0)\n TIFFSetField(out, TIFFTAG_FILLORDER, fillorder);\n else\n CopyTag(TIFFTAG_FILLORDER, 1, TIFF_SHORT);\n TIFFSetField(out, TIFFTAG_ORIENTATION, image->orientation);\n if (outtiled == -1)\n outtiled = TIFFIsTiled(in);\n if (outtiled) {\n if (tilewidth == (uint32) 0)\n TIFFGetField(in, TIFFTAG_TILEWIDTH, &tilewidth);\n if (tilelength == (uint32) 0)\n TIFFGetField(in, TIFFTAG_TILELENGTH, &tilelength);\n if (tilewidth == 0 || tilelength == 0)\n TIFFDefaultTileSize(out, &tilewidth, &tilelength);\n TIFFSetField(out, TIFFTAG_TILEWIDTH, tilewidth);\n TIFFSetField(out, TIFFTAG_TILELENGTH, tilelength);\n } else {\n\tif (rowsperstrip == (uint32) 0)\n {\n\t if (!TIFFGetField(in, TIFFTAG_ROWSPERSTRIP, &rowsperstrip))\n\t rowsperstrip = TIFFDefaultStripSize(out, rowsperstrip);\n if (compression != COMPRESSION_JPEG)\n {\n \t if (rowsperstrip > length)\n\t rowsperstrip = length;\n\t }\n\t }\n\telse\n if (rowsperstrip == (uint32) -1)\n\t rowsperstrip = length;\n\tTIFFSetField(out, TIFFTAG_ROWSPERSTRIP, rowsperstrip);\n\t}\n TIFFGetFieldDefaulted(in, TIFFTAG_PLANARCONFIG, &input_planar);\n if (config != (uint16) -1)\n TIFFSetField(out, TIFFTAG_PLANARCONFIG, config);\n else\n CopyField(TIFFTAG_PLANARCONFIG, config);\n if (spp <= 4)\n CopyTag(TIFFTAG_TRANSFERFUNCTION, 4, TIFF_SHORT);\n CopyTag(TIFFTAG_COLORMAP, 4, TIFF_SHORT);\n switch (compression) {\n case COMPRESSION_JPEG:\n if (((bps % 8) == 0) || ((bps % 12) == 0))\n\t {\n TIFFSetField(out, TIFFTAG_JPEGQUALITY, quality);\n\t TIFFSetField(out, TIFFTAG_JPEGCOLORMODE, JPEGCOLORMODE_RGB);\n }\n else\n {\n\t TIFFError("writeCroppedImage",\n "JPEG compression requires 8 or 12 bits per sample");\n return (-1);\n }\n\t break;\n case COMPRESSION_LZW:\n case COMPRESSION_ADOBE_DEFLATE:\n case COMPRESSION_DEFLATE:\n\tif (predictor != (uint16)-1)\n TIFFSetField(out, TIFFTAG_PREDICTOR, predictor);\n\telse\n\t CopyField(TIFFTAG_PREDICTOR, predictor);\n\tbreak;\n case COMPRESSION_CCITTFAX3:\n case COMPRESSION_CCITTFAX4:\n if (bps != 1)\n {\n\t TIFFError("writeCroppedImage",\n "Group 3/4 compression is not usable with bps > 1");\n return (-1);\n\t }\n\tif (compression == COMPRESSION_CCITTFAX3) {\n if (g3opts != (uint32) -1)\n\t TIFFSetField(out, TIFFTAG_GROUP3OPTIONS, g3opts);\n\t else\n\t CopyField(TIFFTAG_GROUP3OPTIONS, g3opts);\n\t} else {\n\t CopyTag(TIFFTAG_GROUP4OPTIONS, 1, TIFF_LONG);\n }\n CopyTag(TIFFTAG_BADFAXLINES, 1, TIFF_LONG);\n CopyTag(TIFFTAG_CLEANFAXDATA, 1, TIFF_LONG);\n CopyTag(TIFFTAG_CONSECUTIVEBADFAXLINES, 1, TIFF_LONG);\n CopyTag(TIFFTAG_FAXRECVPARAMS, 1, TIFF_LONG);\n CopyTag(TIFFTAG_FAXRECVTIME, 1, TIFF_LONG);\n CopyTag(TIFFTAG_FAXSUBADDRESS, 1, TIFF_ASCII);\n break;\n case COMPRESSION_NONE:\n break;\n default: break;\n }\n { uint32 len32;\n void** data;\n if (TIFFGetField(in, TIFFTAG_ICCPROFILE, &len32, &data))\n TIFFSetField(out, TIFFTAG_ICCPROFILE, len32, data);\n }\n { uint16 ninks;\n const char* inknames;\n if (TIFFGetField(in, TIFFTAG_NUMBEROFINKS, &ninks)) {\n TIFFSetField(out, TIFFTAG_NUMBEROFINKS, ninks);\n if (TIFFGetField(in, TIFFTAG_INKNAMES, &inknames)) {\n\t int inknameslen = strlen(inknames) + 1;\n\t const char* cp = inknames;\n\t while (ninks > 1) {\n\t cp = strchr(cp, \'\\0\');\n\t if (cp) {\n\t cp++;\n\t inknameslen += (strlen(cp) + 1);\n\t }\n\t ninks--;\n }\n\t TIFFSetField(out, TIFFTAG_INKNAMES, inknameslen, inknames);\n }\n }\n }\n {\n unsigned short pg0, pg1;\n if (TIFFGetField(in, TIFFTAG_PAGENUMBER, &pg0, &pg1)) {\n TIFFSetField(out, TIFFTAG_PAGENUMBER, pagenum, total_pages);\n }\n }\n for (p = tags; p < &tags[NTAGS]; p++)\n\t\tCopyTag(p->tag, p->count, p->type);\n if (outtiled)\n {\n if (config == PLANARCONFIG_CONTIG)\n {\n if (writeBufferToContigTiles (out, crop_buff, length, width, spp, dump))\n TIFFError("","Unable to write contiguous tile data for page %d", pagenum);\n }\n else\n {\n if (writeBufferToSeparateTiles (out, crop_buff, length, width, spp, dump))\n TIFFError("","Unable to write separate tile data for page %d", pagenum);\n }\n }\n else\n {\n if (config == PLANARCONFIG_CONTIG)\n {\n if (writeBufferToContigStrips (out, crop_buff, length))\n TIFFError("","Unable to write contiguous strip data for page %d", pagenum);\n }\n else\n {\n if (writeBufferToSeparateStrips(out, crop_buff, length, width, spp, dump))\n TIFFError("","Unable to write separate strip data for page %d", pagenum);\n }\n }\n if (!TIFFWriteDirectory(out))\n {\n TIFFError("","Failed to write IFD for page number %d", pagenum);\n return (-1);\n }\n return (0);\n }', 'static int writeBufferToContigStrips(TIFF* out, uint8* buf, uint32 imagelength)\n {\n uint32 row, nrows, rowsperstrip;\n tstrip_t strip = 0;\n tsize_t stripsize;\n TIFFGetFieldDefaulted(out, TIFFTAG_ROWSPERSTRIP, &rowsperstrip);\n for (row = 0; row < imagelength; row += rowsperstrip)\n {\n nrows = (row + rowsperstrip > imagelength) ?\n\t imagelength - row : rowsperstrip;\n stripsize = TIFFVStripSize(out, nrows);\n if (TIFFWriteEncodedStrip(out, strip++, buf, stripsize) < 0)\n {\n TIFFError(TIFFFileName(out), "Error, can\'t write strip %u", strip - 1);\n return 1;\n }\n buf += stripsize;\n }\n return 0;\n }', 'int\nTIFFGetFieldDefaulted(TIFF* tif, uint32 tag, ...)\n{\n\tint ok;\n\tva_list ap;\n\tva_start(ap, tag);\n\tok = TIFFVGetFieldDefaulted(tif, tag, ap);\n\tva_end(ap);\n\treturn (ok);\n}', 'int\nTIFFVGetFieldDefaulted(TIFF* tif, uint32 tag, va_list ap)\n{\n\tTIFFDirectory *td = &tif->tif_dir;\n\tif (TIFFVGetField(tif, tag, ap))\n\t\treturn (1);\n\tswitch (tag) {\n\tcase TIFFTAG_SUBFILETYPE:\n\t\t*va_arg(ap, uint32 *) = td->td_subfiletype;\n\t\treturn (1);\n\tcase TIFFTAG_BITSPERSAMPLE:\n\t\t*va_arg(ap, uint16 *) = td->td_bitspersample;\n\t\treturn (1);\n\tcase TIFFTAG_THRESHHOLDING:\n\t\t*va_arg(ap, uint16 *) = td->td_threshholding;\n\t\treturn (1);\n\tcase TIFFTAG_FILLORDER:\n\t\t*va_arg(ap, uint16 *) = td->td_fillorder;\n\t\treturn (1);\n\tcase TIFFTAG_ORIENTATION:\n\t\t*va_arg(ap, uint16 *) = td->td_orientation;\n\t\treturn (1);\n\tcase TIFFTAG_SAMPLESPERPIXEL:\n\t\t*va_arg(ap, uint16 *) = td->td_samplesperpixel;\n\t\treturn (1);\n\tcase TIFFTAG_ROWSPERSTRIP:\n\t\t*va_arg(ap, uint32 *) = td->td_rowsperstrip;\n\t\treturn (1);\n\tcase TIFFTAG_MINSAMPLEVALUE:\n\t\t*va_arg(ap, uint16 *) = td->td_minsamplevalue;\n\t\treturn (1);\n\tcase TIFFTAG_MAXSAMPLEVALUE:\n\t\t*va_arg(ap, uint16 *) = td->td_maxsamplevalue;\n\t\treturn (1);\n\tcase TIFFTAG_PLANARCONFIG:\n\t\t*va_arg(ap, uint16 *) = td->td_planarconfig;\n\t\treturn (1);\n\tcase TIFFTAG_RESOLUTIONUNIT:\n\t\t*va_arg(ap, uint16 *) = td->td_resolutionunit;\n\t\treturn (1);\n\tcase TIFFTAG_PREDICTOR:\n {\n TIFFPredictorState* sp = (TIFFPredictorState*) tif->tif_data;\n if( sp == NULL )\n {\n TIFFErrorExt(tif->tif_clientdata, tif->tif_name,\n "Cannot get \\"Predictor\\" tag as plugin is not configured");\n *va_arg(ap, uint16*) = 0;\n return 0;\n }\n *va_arg(ap, uint16*) = (uint16) sp->predictor;\n return 1;\n }\n\tcase TIFFTAG_DOTRANGE:\n\t\t*va_arg(ap, uint16 *) = 0;\n\t\t*va_arg(ap, uint16 *) = (1<<td->td_bitspersample)-1;\n\t\treturn (1);\n\tcase TIFFTAG_INKSET:\n\t\t*va_arg(ap, uint16 *) = INKSET_CMYK;\n\t\treturn 1;\n\tcase TIFFTAG_NUMBEROFINKS:\n\t\t*va_arg(ap, uint16 *) = 4;\n\t\treturn (1);\n\tcase TIFFTAG_EXTRASAMPLES:\n\t\t*va_arg(ap, uint16 *) = td->td_extrasamples;\n\t\t*va_arg(ap, uint16 **) = td->td_sampleinfo;\n\t\treturn (1);\n\tcase TIFFTAG_MATTEING:\n\t\t*va_arg(ap, uint16 *) =\n\t\t (td->td_extrasamples == 1 &&\n\t\t td->td_sampleinfo[0] == EXTRASAMPLE_ASSOCALPHA);\n\t\treturn (1);\n\tcase TIFFTAG_TILEDEPTH:\n\t\t*va_arg(ap, uint32 *) = td->td_tiledepth;\n\t\treturn (1);\n\tcase TIFFTAG_DATATYPE:\n\t\t*va_arg(ap, uint16 *) = td->td_sampleformat-1;\n\t\treturn (1);\n\tcase TIFFTAG_SAMPLEFORMAT:\n\t\t*va_arg(ap, uint16 *) = td->td_sampleformat;\n return(1);\n\tcase TIFFTAG_IMAGEDEPTH:\n\t\t*va_arg(ap, uint32 *) = td->td_imagedepth;\n\t\treturn (1);\n\tcase TIFFTAG_YCBCRCOEFFICIENTS:\n\t\t{\n\t\t\tstatic float ycbcrcoeffs[] = { 0.299f, 0.587f, 0.114f };\n\t\t\t*va_arg(ap, float **) = ycbcrcoeffs;\n\t\t\treturn 1;\n\t\t}\n\tcase TIFFTAG_YCBCRSUBSAMPLING:\n\t\t*va_arg(ap, uint16 *) = td->td_ycbcrsubsampling[0];\n\t\t*va_arg(ap, uint16 *) = td->td_ycbcrsubsampling[1];\n\t\treturn (1);\n\tcase TIFFTAG_YCBCRPOSITIONING:\n\t\t*va_arg(ap, uint16 *) = td->td_ycbcrpositioning;\n\t\treturn (1);\n\tcase TIFFTAG_WHITEPOINT:\n\t\t{\n\t\t\tstatic float whitepoint[2];\n\t\t\twhitepoint[0] =\tD50_X0 / (D50_X0 + D50_Y0 + D50_Z0);\n\t\t\twhitepoint[1] =\tD50_Y0 / (D50_X0 + D50_Y0 + D50_Z0);\n\t\t\t*va_arg(ap, float **) = whitepoint;\n\t\t\treturn 1;\n\t\t}\n\tcase TIFFTAG_TRANSFERFUNCTION:\n\t\tif (!td->td_transferfunction[0] &&\n\t\t !TIFFDefaultTransferFunction(td)) {\n\t\t\tTIFFErrorExt(tif->tif_clientdata, tif->tif_name, "No space for \\"TransferFunction\\" tag");\n\t\t\treturn (0);\n\t\t}\n\t\t*va_arg(ap, uint16 **) = td->td_transferfunction[0];\n\t\tif (td->td_samplesperpixel - td->td_extrasamples > 1) {\n\t\t\t*va_arg(ap, uint16 **) = td->td_transferfunction[1];\n\t\t\t*va_arg(ap, uint16 **) = td->td_transferfunction[2];\n\t\t}\n\t\treturn (1);\n\tcase TIFFTAG_REFERENCEBLACKWHITE:\n\t\tif (!td->td_refblackwhite && !TIFFDefaultRefBlackWhite(td))\n\t\t\treturn (0);\n\t\t*va_arg(ap, float **) = td->td_refblackwhite;\n\t\treturn (1);\n\t}\n\treturn 0;\n}', 'int\nTIFFWriteDirectory(TIFF* tif)\n{\n\treturn TIFFWriteDirectorySec(tif,TRUE,TRUE,NULL);\n}', 'static int\nTIFFWriteDirectorySec(TIFF* tif, int isimage, int imagedone, uint64* pdiroff)\n{\n\tstatic const char module[] = "TIFFWriteDirectorySec";\n\tuint32 ndir;\n\tTIFFDirEntry* dir;\n\tuint32 dirsize;\n\tvoid* dirmem;\n\tuint32 m;\n\tif (tif->tif_mode == O_RDONLY)\n\t\treturn (1);\n _TIFFFillStriles( tif );\n\tif (imagedone)\n\t{\n\t\tif (tif->tif_flags & TIFF_POSTENCODE)\n\t\t{\n\t\t\ttif->tif_flags &= ~TIFF_POSTENCODE;\n\t\t\tif (!(*tif->tif_postencode)(tif))\n\t\t\t{\n\t\t\t\tTIFFErrorExt(tif->tif_clientdata,module,\n\t\t\t\t "Error post-encoding before directory write");\n\t\t\t\treturn (0);\n\t\t\t}\n\t\t}\n\t\t(*tif->tif_close)(tif);\n\t\tif (tif->tif_rawcc > 0\n\t\t && (tif->tif_flags & TIFF_BEENWRITING) != 0 )\n\t\t{\n\t\t if( !TIFFFlushData1(tif) )\n {\n\t\t\tTIFFErrorExt(tif->tif_clientdata, module,\n\t\t\t "Error flushing data before directory write");\n\t\t\treturn (0);\n }\n\t\t}\n\t\tif ((tif->tif_flags & TIFF_MYBUFFER) && tif->tif_rawdata)\n\t\t{\n\t\t\t_TIFFfree(tif->tif_rawdata);\n\t\t\ttif->tif_rawdata = NULL;\n\t\t\ttif->tif_rawcc = 0;\n\t\t\ttif->tif_rawdatasize = 0;\n tif->tif_rawdataoff = 0;\n tif->tif_rawdataloaded = 0;\n\t\t}\n\t\ttif->tif_flags &= ~(TIFF_BEENWRITING|TIFF_BUFFERSETUP);\n\t}\n\tdir=NULL;\n\tdirmem=NULL;\n\tdirsize=0;\n\twhile (1)\n\t{\n\t\tndir=0;\n\t\tif (isimage)\n\t\t{\n\t\t\tif (TIFFFieldSet(tif,FIELD_IMAGEDIMENSIONS))\n\t\t\t{\n\t\t\t\tif (!TIFFWriteDirectoryTagShortLong(tif,&ndir,dir,TIFFTAG_IMAGEWIDTH,tif->tif_dir.td_imagewidth))\n\t\t\t\t\tgoto bad;\n\t\t\t\tif (!TIFFWriteDirectoryTagShortLong(tif,&ndir,dir,TIFFTAG_IMAGELENGTH,tif->tif_dir.td_imagelength))\n\t\t\t\t\tgoto bad;\n\t\t\t}\n\t\t\tif (TIFFFieldSet(tif,FIELD_TILEDIMENSIONS))\n\t\t\t{\n\t\t\t\tif (!TIFFWriteDirectoryTagShortLong(tif,&ndir,dir,TIFFTAG_TILEWIDTH,tif->tif_dir.td_tilewidth))\n\t\t\t\t\tgoto bad;\n\t\t\t\tif (!TIFFWriteDirectoryTagShortLong(tif,&ndir,dir,TIFFTAG_TILELENGTH,tif->tif_dir.td_tilelength))\n\t\t\t\t\tgoto bad;\n\t\t\t}\n\t\t\tif (TIFFFieldSet(tif,FIELD_RESOLUTION))\n\t\t\t{\n\t\t\t\tif (!TIFFWriteDirectoryTagRational(tif,&ndir,dir,TIFFTAG_XRESOLUTION,tif->tif_dir.td_xresolution))\n\t\t\t\t\tgoto bad;\n\t\t\t\tif (!TIFFWriteDirectoryTagRational(tif,&ndir,dir,TIFFTAG_YRESOLUTION,tif->tif_dir.td_yresolution))\n\t\t\t\t\tgoto bad;\n\t\t\t}\n\t\t\tif (TIFFFieldSet(tif,FIELD_POSITION))\n\t\t\t{\n\t\t\t\tif (!TIFFWriteDirectoryTagRational(tif,&ndir,dir,TIFFTAG_XPOSITION,tif->tif_dir.td_xposition))\n\t\t\t\t\tgoto bad;\n\t\t\t\tif (!TIFFWriteDirectoryTagRational(tif,&ndir,dir,TIFFTAG_YPOSITION,tif->tif_dir.td_yposition))\n\t\t\t\t\tgoto bad;\n\t\t\t}\n\t\t\tif (TIFFFieldSet(tif,FIELD_SUBFILETYPE))\n\t\t\t{\n\t\t\t\tif (!TIFFWriteDirectoryTagLong(tif,&ndir,dir,TIFFTAG_SUBFILETYPE,tif->tif_dir.td_subfiletype))\n\t\t\t\t\tgoto bad;\n\t\t\t}\n\t\t\tif (TIFFFieldSet(tif,FIELD_BITSPERSAMPLE))\n\t\t\t{\n\t\t\t\tif (!TIFFWriteDirectoryTagShortPerSample(tif,&ndir,dir,TIFFTAG_BITSPERSAMPLE,tif->tif_dir.td_bitspersample))\n\t\t\t\t\tgoto bad;\n\t\t\t}\n\t\t\tif (TIFFFieldSet(tif,FIELD_COMPRESSION))\n\t\t\t{\n\t\t\t\tif (!TIFFWriteDirectoryTagShort(tif,&ndir,dir,TIFFTAG_COMPRESSION,tif->tif_dir.td_compression))\n\t\t\t\t\tgoto bad;\n\t\t\t}\n\t\t\tif (TIFFFieldSet(tif,FIELD_PHOTOMETRIC))\n\t\t\t{\n\t\t\t\tif (!TIFFWriteDirectoryTagShort(tif,&ndir,dir,TIFFTAG_PHOTOMETRIC,tif->tif_dir.td_photometric))\n\t\t\t\t\tgoto bad;\n\t\t\t}\n\t\t\tif (TIFFFieldSet(tif,FIELD_THRESHHOLDING))\n\t\t\t{\n\t\t\t\tif (!TIFFWriteDirectoryTagShort(tif,&ndir,dir,TIFFTAG_THRESHHOLDING,tif->tif_dir.td_threshholding))\n\t\t\t\t\tgoto bad;\n\t\t\t}\n\t\t\tif (TIFFFieldSet(tif,FIELD_FILLORDER))\n\t\t\t{\n\t\t\t\tif (!TIFFWriteDirectoryTagShort(tif,&ndir,dir,TIFFTAG_FILLORDER,tif->tif_dir.td_fillorder))\n\t\t\t\t\tgoto bad;\n\t\t\t}\n\t\t\tif (TIFFFieldSet(tif,FIELD_ORIENTATION))\n\t\t\t{\n\t\t\t\tif (!TIFFWriteDirectoryTagShort(tif,&ndir,dir,TIFFTAG_ORIENTATION,tif->tif_dir.td_orientation))\n\t\t\t\t\tgoto bad;\n\t\t\t}\n\t\t\tif (TIFFFieldSet(tif,FIELD_SAMPLESPERPIXEL))\n\t\t\t{\n\t\t\t\tif (!TIFFWriteDirectoryTagShort(tif,&ndir,dir,TIFFTAG_SAMPLESPERPIXEL,tif->tif_dir.td_samplesperpixel))\n\t\t\t\t\tgoto bad;\n\t\t\t}\n\t\t\tif (TIFFFieldSet(tif,FIELD_ROWSPERSTRIP))\n\t\t\t{\n\t\t\t\tif (!TIFFWriteDirectoryTagShortLong(tif,&ndir,dir,TIFFTAG_ROWSPERSTRIP,tif->tif_dir.td_rowsperstrip))\n\t\t\t\t\tgoto bad;\n\t\t\t}\n\t\t\tif (TIFFFieldSet(tif,FIELD_MINSAMPLEVALUE))\n\t\t\t{\n\t\t\t\tif (!TIFFWriteDirectoryTagShortPerSample(tif,&ndir,dir,TIFFTAG_MINSAMPLEVALUE,tif->tif_dir.td_minsamplevalue))\n\t\t\t\t\tgoto bad;\n\t\t\t}\n\t\t\tif (TIFFFieldSet(tif,FIELD_MAXSAMPLEVALUE))\n\t\t\t{\n\t\t\t\tif (!TIFFWriteDirectoryTagShortPerSample(tif,&ndir,dir,TIFFTAG_MAXSAMPLEVALUE,tif->tif_dir.td_maxsamplevalue))\n\t\t\t\t\tgoto bad;\n\t\t\t}\n\t\t\tif (TIFFFieldSet(tif,FIELD_PLANARCONFIG))\n\t\t\t{\n\t\t\t\tif (!TIFFWriteDirectoryTagShort(tif,&ndir,dir,TIFFTAG_PLANARCONFIG,tif->tif_dir.td_planarconfig))\n\t\t\t\t\tgoto bad;\n\t\t\t}\n\t\t\tif (TIFFFieldSet(tif,FIELD_RESOLUTIONUNIT))\n\t\t\t{\n\t\t\t\tif (!TIFFWriteDirectoryTagShort(tif,&ndir,dir,TIFFTAG_RESOLUTIONUNIT,tif->tif_dir.td_resolutionunit))\n\t\t\t\t\tgoto bad;\n\t\t\t}\n\t\t\tif (TIFFFieldSet(tif,FIELD_PAGENUMBER))\n\t\t\t{\n\t\t\t\tif (!TIFFWriteDirectoryTagShortArray(tif,&ndir,dir,TIFFTAG_PAGENUMBER,2,&tif->tif_dir.td_pagenumber[0]))\n\t\t\t\t\tgoto bad;\n\t\t\t}\n\t\t\tif (TIFFFieldSet(tif,FIELD_STRIPBYTECOUNTS))\n\t\t\t{\n\t\t\t\tif (!isTiled(tif))\n\t\t\t\t{\n\t\t\t\t\tif (!TIFFWriteDirectoryTagLongLong8Array(tif,&ndir,dir,TIFFTAG_STRIPBYTECOUNTS,tif->tif_dir.td_nstrips,tif->tif_dir.td_stripbytecount))\n\t\t\t\t\t\tgoto bad;\n\t\t\t\t}\n\t\t\t\telse\n\t\t\t\t{\n\t\t\t\t\tif (!TIFFWriteDirectoryTagLongLong8Array(tif,&ndir,dir,TIFFTAG_TILEBYTECOUNTS,tif->tif_dir.td_nstrips,tif->tif_dir.td_stripbytecount))\n\t\t\t\t\t\tgoto bad;\n\t\t\t\t}\n\t\t\t}\n\t\t\tif (TIFFFieldSet(tif,FIELD_STRIPOFFSETS))\n\t\t\t{\n\t\t\t\tif (!isTiled(tif))\n\t\t\t\t{\n if (tif->tif_dir.td_stripoffset != NULL &&\n !TIFFWriteDirectoryTagLongLong8Array(tif,&ndir,dir,TIFFTAG_STRIPOFFSETS,tif->tif_dir.td_nstrips,tif->tif_dir.td_stripoffset))\n goto bad;\n\t\t\t\t}\n\t\t\t\telse\n\t\t\t\t{\n\t\t\t\t\tif (!TIFFWriteDirectoryTagLongLong8Array(tif,&ndir,dir,TIFFTAG_TILEOFFSETS,tif->tif_dir.td_nstrips,tif->tif_dir.td_stripoffset))\n\t\t\t\t\t\tgoto bad;\n\t\t\t\t}\n\t\t\t}\n\t\t\tif (TIFFFieldSet(tif,FIELD_COLORMAP))\n\t\t\t{\n\t\t\t\tif (!TIFFWriteDirectoryTagColormap(tif,&ndir,dir))\n\t\t\t\t\tgoto bad;\n\t\t\t}\n\t\t\tif (TIFFFieldSet(tif,FIELD_EXTRASAMPLES))\n\t\t\t{\n\t\t\t\tif (tif->tif_dir.td_extrasamples)\n\t\t\t\t{\n\t\t\t\t\tuint16 na;\n\t\t\t\t\tuint16* nb;\n\t\t\t\t\tTIFFGetFieldDefaulted(tif,TIFFTAG_EXTRASAMPLES,&na,&nb);\n\t\t\t\t\tif (!TIFFWriteDirectoryTagShortArray(tif,&ndir,dir,TIFFTAG_EXTRASAMPLES,na,nb))\n\t\t\t\t\t\tgoto bad;\n\t\t\t\t}\n\t\t\t}\n\t\t\tif (TIFFFieldSet(tif,FIELD_SAMPLEFORMAT))\n\t\t\t{\n\t\t\t\tif (!TIFFWriteDirectoryTagShortPerSample(tif,&ndir,dir,TIFFTAG_SAMPLEFORMAT,tif->tif_dir.td_sampleformat))\n\t\t\t\t\tgoto bad;\n\t\t\t}\n\t\t\tif (TIFFFieldSet(tif,FIELD_SMINSAMPLEVALUE))\n\t\t\t{\n\t\t\t\tif (!TIFFWriteDirectoryTagSampleformatArray(tif,&ndir,dir,TIFFTAG_SMINSAMPLEVALUE,tif->tif_dir.td_samplesperpixel,tif->tif_dir.td_sminsamplevalue))\n\t\t\t\t\tgoto bad;\n\t\t\t}\n\t\t\tif (TIFFFieldSet(tif,FIELD_SMAXSAMPLEVALUE))\n\t\t\t{\n\t\t\t\tif (!TIFFWriteDirectoryTagSampleformatArray(tif,&ndir,dir,TIFFTAG_SMAXSAMPLEVALUE,tif->tif_dir.td_samplesperpixel,tif->tif_dir.td_smaxsamplevalue))\n\t\t\t\t\tgoto bad;\n\t\t\t}\n\t\t\tif (TIFFFieldSet(tif,FIELD_IMAGEDEPTH))\n\t\t\t{\n\t\t\t\tif (!TIFFWriteDirectoryTagLong(tif,&ndir,dir,TIFFTAG_IMAGEDEPTH,tif->tif_dir.td_imagedepth))\n\t\t\t\t\tgoto bad;\n\t\t\t}\n\t\t\tif (TIFFFieldSet(tif,FIELD_TILEDEPTH))\n\t\t\t{\n\t\t\t\tif (!TIFFWriteDirectoryTagLong(tif,&ndir,dir,TIFFTAG_TILEDEPTH,tif->tif_dir.td_tiledepth))\n\t\t\t\t\tgoto bad;\n\t\t\t}\n\t\t\tif (TIFFFieldSet(tif,FIELD_HALFTONEHINTS))\n\t\t\t{\n\t\t\t\tif (!TIFFWriteDirectoryTagShortArray(tif,&ndir,dir,TIFFTAG_HALFTONEHINTS,2,&tif->tif_dir.td_halftonehints[0]))\n\t\t\t\t\tgoto bad;\n\t\t\t}\n\t\t\tif (TIFFFieldSet(tif,FIELD_YCBCRSUBSAMPLING))\n\t\t\t{\n\t\t\t\tif (!TIFFWriteDirectoryTagShortArray(tif,&ndir,dir,TIFFTAG_YCBCRSUBSAMPLING,2,&tif->tif_dir.td_ycbcrsubsampling[0]))\n\t\t\t\t\tgoto bad;\n\t\t\t}\n\t\t\tif (TIFFFieldSet(tif,FIELD_YCBCRPOSITIONING))\n\t\t\t{\n\t\t\t\tif (!TIFFWriteDirectoryTagShort(tif,&ndir,dir,TIFFTAG_YCBCRPOSITIONING,tif->tif_dir.td_ycbcrpositioning))\n\t\t\t\t\tgoto bad;\n\t\t\t}\n\t\t\tif (TIFFFieldSet(tif,FIELD_REFBLACKWHITE))\n\t\t\t{\n\t\t\t\tif (!TIFFWriteDirectoryTagRationalArray(tif,&ndir,dir,TIFFTAG_REFERENCEBLACKWHITE,6,tif->tif_dir.td_refblackwhite))\n\t\t\t\t\tgoto bad;\n\t\t\t}\n\t\t\tif (TIFFFieldSet(tif,FIELD_TRANSFERFUNCTION))\n\t\t\t{\n\t\t\t\tif (!TIFFWriteDirectoryTagTransferfunction(tif,&ndir,dir))\n\t\t\t\t\tgoto bad;\n\t\t\t}\n\t\t\tif (TIFFFieldSet(tif,FIELD_INKNAMES))\n\t\t\t{\n\t\t\t\tif (!TIFFWriteDirectoryTagAscii(tif,&ndir,dir,TIFFTAG_INKNAMES,tif->tif_dir.td_inknameslen,tif->tif_dir.td_inknames))\n\t\t\t\t\tgoto bad;\n\t\t\t}\n\t\t\tif (TIFFFieldSet(tif,FIELD_SUBIFD))\n\t\t\t{\n\t\t\t\tif (!TIFFWriteDirectoryTagSubifd(tif,&ndir,dir))\n\t\t\t\t\tgoto bad;\n\t\t\t}\n\t\t\t{\n\t\t\t\tuint32 n;\n\t\t\t\tfor (n=0; n<tif->tif_nfields; n++) {\n\t\t\t\t\tconst TIFFField* o;\n\t\t\t\t\to = tif->tif_fields[n];\n\t\t\t\t\tif ((o->field_bit>=FIELD_CODEC)&&(TIFFFieldSet(tif,o->field_bit)))\n\t\t\t\t\t{\n\t\t\t\t\t\tswitch (o->get_field_type)\n\t\t\t\t\t\t{\n\t\t\t\t\t\t\tcase TIFF_SETGET_ASCII:\n\t\t\t\t\t\t\t\t{\n\t\t\t\t\t\t\t\t\tuint32 pa;\n\t\t\t\t\t\t\t\t\tchar* pb;\n\t\t\t\t\t\t\t\t\tassert(o->field_type==TIFF_ASCII);\n\t\t\t\t\t\t\t\t\tassert(o->field_readcount==TIFF_VARIABLE);\n\t\t\t\t\t\t\t\t\tassert(o->field_passcount==0);\n\t\t\t\t\t\t\t\t\tTIFFGetField(tif,o->field_tag,&pb);\n\t\t\t\t\t\t\t\t\tpa=(uint32)(strlen(pb));\n\t\t\t\t\t\t\t\t\tif (!TIFFWriteDirectoryTagAscii(tif,&ndir,dir,(uint16)o->field_tag,pa,pb))\n\t\t\t\t\t\t\t\t\t\tgoto bad;\n\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\t\tcase TIFF_SETGET_UINT16:\n\t\t\t\t\t\t\t\t{\n\t\t\t\t\t\t\t\t\tuint16 p;\n\t\t\t\t\t\t\t\t\tassert(o->field_type==TIFF_SHORT);\n\t\t\t\t\t\t\t\t\tassert(o->field_readcount==1);\n\t\t\t\t\t\t\t\t\tassert(o->field_passcount==0);\n\t\t\t\t\t\t\t\t\tTIFFGetField(tif,o->field_tag,&p);\n\t\t\t\t\t\t\t\t\tif (!TIFFWriteDirectoryTagShort(tif,&ndir,dir,(uint16)o->field_tag,p))\n\t\t\t\t\t\t\t\t\t\tgoto bad;\n\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\t\tcase TIFF_SETGET_UINT32:\n\t\t\t\t\t\t\t\t{\n\t\t\t\t\t\t\t\t\tuint32 p;\n\t\t\t\t\t\t\t\t\tassert(o->field_type==TIFF_LONG);\n\t\t\t\t\t\t\t\t\tassert(o->field_readcount==1);\n\t\t\t\t\t\t\t\t\tassert(o->field_passcount==0);\n\t\t\t\t\t\t\t\t\tTIFFGetField(tif,o->field_tag,&p);\n\t\t\t\t\t\t\t\t\tif (!TIFFWriteDirectoryTagLong(tif,&ndir,dir,(uint16)o->field_tag,p))\n\t\t\t\t\t\t\t\t\t\tgoto bad;\n\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\t\tcase TIFF_SETGET_C32_UINT8:\n\t\t\t\t\t\t\t\t{\n\t\t\t\t\t\t\t\t\tuint32 pa;\n\t\t\t\t\t\t\t\t\tvoid* pb;\n\t\t\t\t\t\t\t\t\tassert(o->field_type==TIFF_UNDEFINED);\n\t\t\t\t\t\t\t\t\tassert(o->field_readcount==TIFF_VARIABLE2);\n\t\t\t\t\t\t\t\t\tassert(o->field_passcount==1);\n\t\t\t\t\t\t\t\t\tTIFFGetField(tif,o->field_tag,&pa,&pb);\n\t\t\t\t\t\t\t\t\tif (!TIFFWriteDirectoryTagUndefinedArray(tif,&ndir,dir,(uint16)o->field_tag,pa,pb))\n\t\t\t\t\t\t\t\t\t\tgoto bad;\n\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\t\tdefault:\n\t\t\t\t\t\t\t\tassert(0);\n\t\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t\tfor (m=0; m<(uint32)(tif->tif_dir.td_customValueCount); m++)\n\t\t{\n uint16 tag = (uint16)tif->tif_dir.td_customValues[m].info->field_tag;\n uint32 count = tif->tif_dir.td_customValues[m].count;\n\t\t\tswitch (tif->tif_dir.td_customValues[m].info->field_type)\n\t\t\t{\n\t\t\t\tcase TIFF_ASCII:\n\t\t\t\t\tif (!TIFFWriteDirectoryTagAscii(tif,&ndir,dir,tag,count,tif->tif_dir.td_customValues[m].value))\n\t\t\t\t\t\tgoto bad;\n\t\t\t\t\tbreak;\n\t\t\t\tcase TIFF_UNDEFINED:\n\t\t\t\t\tif (!TIFFWriteDirectoryTagUndefinedArray(tif,&ndir,dir,tag,count,tif->tif_dir.td_customValues[m].value))\n\t\t\t\t\t\tgoto bad;\n\t\t\t\t\tbreak;\n\t\t\t\tcase TIFF_BYTE:\n\t\t\t\t\tif (!TIFFWriteDirectoryTagByteArray(tif,&ndir,dir,tag,count,tif->tif_dir.td_customValues[m].value))\n\t\t\t\t\t\tgoto bad;\n\t\t\t\t\tbreak;\n\t\t\t\tcase TIFF_SBYTE:\n\t\t\t\t\tif (!TIFFWriteDirectoryTagSbyteArray(tif,&ndir,dir,tag,count,tif->tif_dir.td_customValues[m].value))\n\t\t\t\t\t\tgoto bad;\n\t\t\t\t\tbreak;\n\t\t\t\tcase TIFF_SHORT:\n\t\t\t\t\tif (!TIFFWriteDirectoryTagShortArray(tif,&ndir,dir,tag,count,tif->tif_dir.td_customValues[m].value))\n\t\t\t\t\t\tgoto bad;\n\t\t\t\t\tbreak;\n\t\t\t\tcase TIFF_SSHORT:\n\t\t\t\t\tif (!TIFFWriteDirectoryTagSshortArray(tif,&ndir,dir,tag,count,tif->tif_dir.td_customValues[m].value))\n\t\t\t\t\t\tgoto bad;\n\t\t\t\t\tbreak;\n\t\t\t\tcase TIFF_LONG:\n\t\t\t\t\tif (!TIFFWriteDirectoryTagLongArray(tif,&ndir,dir,tag,count,tif->tif_dir.td_customValues[m].value))\n\t\t\t\t\t\tgoto bad;\n\t\t\t\t\tbreak;\n\t\t\t\tcase TIFF_SLONG:\n\t\t\t\t\tif (!TIFFWriteDirectoryTagSlongArray(tif,&ndir,dir,tag,count,tif->tif_dir.td_customValues[m].value))\n\t\t\t\t\t\tgoto bad;\n\t\t\t\t\tbreak;\n\t\t\t\tcase TIFF_LONG8:\n\t\t\t\t\tif (!TIFFWriteDirectoryTagLong8Array(tif,&ndir,dir,tag,count,tif->tif_dir.td_customValues[m].value))\n\t\t\t\t\t\tgoto bad;\n\t\t\t\t\tbreak;\n\t\t\t\tcase TIFF_SLONG8:\n\t\t\t\t\tif (!TIFFWriteDirectoryTagSlong8Array(tif,&ndir,dir,tag,count,tif->tif_dir.td_customValues[m].value))\n\t\t\t\t\t\tgoto bad;\n\t\t\t\t\tbreak;\n\t\t\t\tcase TIFF_RATIONAL:\n\t\t\t\t\tif (!TIFFWriteDirectoryTagRationalArray(tif,&ndir,dir,tag,count,tif->tif_dir.td_customValues[m].value))\n\t\t\t\t\t\tgoto bad;\n\t\t\t\t\tbreak;\n\t\t\t\tcase TIFF_SRATIONAL:\n\t\t\t\t\tif (!TIFFWriteDirectoryTagSrationalArray(tif,&ndir,dir,tag,count,tif->tif_dir.td_customValues[m].value))\n\t\t\t\t\t\tgoto bad;\n\t\t\t\t\tbreak;\n\t\t\t\tcase TIFF_FLOAT:\n\t\t\t\t\tif (!TIFFWriteDirectoryTagFloatArray(tif,&ndir,dir,tag,count,tif->tif_dir.td_customValues[m].value))\n\t\t\t\t\t\tgoto bad;\n\t\t\t\t\tbreak;\n\t\t\t\tcase TIFF_DOUBLE:\n\t\t\t\t\tif (!TIFFWriteDirectoryTagDoubleArray(tif,&ndir,dir,tag,count,tif->tif_dir.td_customValues[m].value))\n\t\t\t\t\t\tgoto bad;\n\t\t\t\t\tbreak;\n\t\t\t\tcase TIFF_IFD:\n\t\t\t\t\tif (!TIFFWriteDirectoryTagIfdArray(tif,&ndir,dir,tag,count,tif->tif_dir.td_customValues[m].value))\n\t\t\t\t\t\tgoto bad;\n\t\t\t\t\tbreak;\n\t\t\t\tcase TIFF_IFD8:\n\t\t\t\t\tif (!TIFFWriteDirectoryTagIfdIfd8Array(tif,&ndir,dir,tag,count,tif->tif_dir.td_customValues[m].value))\n\t\t\t\t\t\tgoto bad;\n\t\t\t\t\tbreak;\n\t\t\t\tdefault:\n\t\t\t\t\tassert(0);\n\t\t\t\t\tbreak;\n\t\t\t}\n\t\t}\n\t\tif (dir!=NULL)\n\t\t\tbreak;\n\t\tdir=_TIFFmalloc(ndir*sizeof(TIFFDirEntry));\n\t\tif (dir==NULL)\n\t\t{\n\t\t\tTIFFErrorExt(tif->tif_clientdata,module,"Out of memory");\n\t\t\tgoto bad;\n\t\t}\n\t\tif (isimage)\n\t\t{\n\t\t\tif ((tif->tif_diroff==0)&&(!TIFFLinkDirectory(tif)))\n\t\t\t\tgoto bad;\n\t\t}\n\t\telse\n\t\t\ttif->tif_diroff=(TIFFSeekFile(tif,0,SEEK_END)+1)&(~((toff_t)1));\n\t\tif (pdiroff!=NULL)\n\t\t\t*pdiroff=tif->tif_diroff;\n\t\tif (!(tif->tif_flags&TIFF_BIGTIFF))\n\t\t\tdirsize=2+ndir*12+4;\n\t\telse\n\t\t\tdirsize=8+ndir*20+8;\n\t\ttif->tif_dataoff=tif->tif_diroff+dirsize;\n\t\tif (!(tif->tif_flags&TIFF_BIGTIFF))\n\t\t\ttif->tif_dataoff=(uint32)tif->tif_dataoff;\n\t\tif ((tif->tif_dataoff<tif->tif_diroff)||(tif->tif_dataoff<(uint64)dirsize))\n\t\t{\n\t\t\tTIFFErrorExt(tif->tif_clientdata,module,"Maximum TIFF file size exceeded");\n\t\t\tgoto bad;\n\t\t}\n\t\tif (tif->tif_dataoff&1)\n\t\t\ttif->tif_dataoff++;\n\t\tif (isimage)\n\t\t\ttif->tif_curdir++;\n\t}\n\tif (isimage)\n\t{\n\t\tif (TIFFFieldSet(tif,FIELD_SUBIFD)&&(tif->tif_subifdoff==0))\n\t\t{\n\t\t\tuint32 na;\n\t\t\tTIFFDirEntry* nb;\n\t\t\tfor (na=0, nb=dir; ; na++, nb++)\n\t\t\t{\n\t\t\t\tif( na == ndir )\n {\n TIFFErrorExt(tif->tif_clientdata,module,\n "Cannot find SubIFD tag");\n goto bad;\n }\n\t\t\t\tif (nb->tdir_tag==TIFFTAG_SUBIFD)\n\t\t\t\t\tbreak;\n\t\t\t}\n\t\t\tif (!(tif->tif_flags&TIFF_BIGTIFF))\n\t\t\t\ttif->tif_subifdoff=tif->tif_diroff+2+na*12+8;\n\t\t\telse\n\t\t\t\ttif->tif_subifdoff=tif->tif_diroff+8+na*20+12;\n\t\t}\n\t}\n\tdirmem=_TIFFmalloc(dirsize);\n\tif (dirmem==NULL)\n\t{\n\t\tTIFFErrorExt(tif->tif_clientdata,module,"Out of memory");\n\t\tgoto bad;\n\t}\n\tif (!(tif->tif_flags&TIFF_BIGTIFF))\n\t{\n\t\tuint8* n;\n\t\tuint32 nTmp;\n\t\tTIFFDirEntry* o;\n\t\tn=dirmem;\n\t\t*(uint16*)n=(uint16)ndir;\n\t\tif (tif->tif_flags&TIFF_SWAB)\n\t\t\tTIFFSwabShort((uint16*)n);\n\t\tn+=2;\n\t\to=dir;\n\t\tfor (m=0; m<ndir; m++)\n\t\t{\n\t\t\t*(uint16*)n=o->tdir_tag;\n\t\t\tif (tif->tif_flags&TIFF_SWAB)\n\t\t\t\tTIFFSwabShort((uint16*)n);\n\t\t\tn+=2;\n\t\t\t*(uint16*)n=o->tdir_type;\n\t\t\tif (tif->tif_flags&TIFF_SWAB)\n\t\t\t\tTIFFSwabShort((uint16*)n);\n\t\t\tn+=2;\n\t\t\tnTmp = (uint32)o->tdir_count;\n\t\t\t_TIFFmemcpy(n,&nTmp,4);\n\t\t\tif (tif->tif_flags&TIFF_SWAB)\n\t\t\t\tTIFFSwabLong((uint32*)n);\n\t\t\tn+=4;\n\t\t\t_TIFFmemcpy(n,&o->tdir_offset,4);\n\t\t\tn+=4;\n\t\t\to++;\n\t\t}\n\t\tnTmp = (uint32)tif->tif_nextdiroff;\n\t\tif (tif->tif_flags&TIFF_SWAB)\n\t\t\tTIFFSwabLong(&nTmp);\n\t\t_TIFFmemcpy(n,&nTmp,4);\n\t}\n\telse\n\t{\n\t\tuint8* n;\n\t\tTIFFDirEntry* o;\n\t\tn=dirmem;\n\t\t*(uint64*)n=ndir;\n\t\tif (tif->tif_flags&TIFF_SWAB)\n\t\t\tTIFFSwabLong8((uint64*)n);\n\t\tn+=8;\n\t\to=dir;\n\t\tfor (m=0; m<ndir; m++)\n\t\t{\n\t\t\t*(uint16*)n=o->tdir_tag;\n\t\t\tif (tif->tif_flags&TIFF_SWAB)\n\t\t\t\tTIFFSwabShort((uint16*)n);\n\t\t\tn+=2;\n\t\t\t*(uint16*)n=o->tdir_type;\n\t\t\tif (tif->tif_flags&TIFF_SWAB)\n\t\t\t\tTIFFSwabShort((uint16*)n);\n\t\t\tn+=2;\n\t\t\t_TIFFmemcpy(n,&o->tdir_count,8);\n\t\t\tif (tif->tif_flags&TIFF_SWAB)\n\t\t\t\tTIFFSwabLong8((uint64*)n);\n\t\t\tn+=8;\n\t\t\t_TIFFmemcpy(n,&o->tdir_offset,8);\n\t\t\tn+=8;\n\t\t\to++;\n\t\t}\n\t\t_TIFFmemcpy(n,&tif->tif_nextdiroff,8);\n\t\tif (tif->tif_flags&TIFF_SWAB)\n\t\t\tTIFFSwabLong8((uint64*)n);\n\t}\n\t_TIFFfree(dir);\n\tdir=NULL;\n\tif (!SeekOK(tif,tif->tif_diroff))\n\t{\n\t\tTIFFErrorExt(tif->tif_clientdata,module,"IO error writing directory");\n\t\tgoto bad;\n\t}\n\tif (!WriteOK(tif,dirmem,(tmsize_t)dirsize))\n\t{\n\t\tTIFFErrorExt(tif->tif_clientdata,module,"IO error writing directory");\n\t\tgoto bad;\n\t}\n\t_TIFFfree(dirmem);\n\tif (imagedone)\n\t{\n\t\tTIFFFreeDirectory(tif);\n\t\ttif->tif_flags &= ~TIFF_DIRTYDIRECT;\n\t\ttif->tif_flags &= ~TIFF_DIRTYSTRIP;\n\t\t(*tif->tif_cleanup)(tif);\n\t\tTIFFCreateDirectory(tif);\n\t}\n\treturn(1);\nbad:\n\tif (dir!=NULL)\n\t\t_TIFFfree(dir);\n\tif (dirmem!=NULL)\n\t\t_TIFFfree(dirmem);\n\treturn(0);\n}', 'static int\nTIFFWriteDirectoryTagSampleformatArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, double* value)\n{\n\tstatic const char module[] = "TIFFWriteDirectoryTagSampleformatArray";\n\tvoid* conv;\n\tuint32 i;\n\tint ok;\n\tconv = _TIFFmalloc(count*sizeof(double));\n\tif (conv == NULL)\n\t{\n\t\tTIFFErrorExt(tif->tif_clientdata, module, "Out of memory");\n\t\treturn (0);\n\t}\n\tswitch (tif->tif_dir.td_sampleformat)\n\t{\n\t\tcase SAMPLEFORMAT_IEEEFP:\n\t\t\tif (tif->tif_dir.td_bitspersample<=32)\n\t\t\t{\n\t\t\t\tfor (i = 0; i < count; ++i)\n\t\t\t\t\t((float*)conv)[i] = TIFFClampDoubleToFloat(value[i]);\n\t\t\t\tok = TIFFWriteDirectoryTagFloatArray(tif,ndir,dir,tag,count,(float*)conv);\n\t\t\t}\n\t\t\telse\n\t\t\t{\n\t\t\t\tok = TIFFWriteDirectoryTagDoubleArray(tif,ndir,dir,tag,count,value);\n\t\t\t}\n\t\t\tbreak;\n\t\tcase SAMPLEFORMAT_INT:\n\t\t\tif (tif->tif_dir.td_bitspersample<=8)\n\t\t\t{\n\t\t\t\tfor (i = 0; i < count; ++i)\n\t\t\t\t\t((int8*)conv)[i] = TIFFClampDoubleToInt8(value[i]);\n\t\t\t\tok = TIFFWriteDirectoryTagSbyteArray(tif,ndir,dir,tag,count,(int8*)conv);\n\t\t\t}\n\t\t\telse if (tif->tif_dir.td_bitspersample<=16)\n\t\t\t{\n\t\t\t\tfor (i = 0; i < count; ++i)\n\t\t\t\t\t((int16*)conv)[i] = TIFFClampDoubleToInt16(value[i]);\n\t\t\t\tok = TIFFWriteDirectoryTagSshortArray(tif,ndir,dir,tag,count,(int16*)conv);\n\t\t\t}\n\t\t\telse\n\t\t\t{\n\t\t\t\tfor (i = 0; i < count; ++i)\n\t\t\t\t\t((int32*)conv)[i] = TIFFClampDoubleToInt32(value[i]);\n\t\t\t\tok = TIFFWriteDirectoryTagSlongArray(tif,ndir,dir,tag,count,(int32*)conv);\n\t\t\t}\n\t\t\tbreak;\n\t\tcase SAMPLEFORMAT_UINT:\n\t\t\tif (tif->tif_dir.td_bitspersample<=8)\n\t\t\t{\n\t\t\t\tfor (i = 0; i < count; ++i)\n\t\t\t\t\t((uint8*)conv)[i] = TIFFClampDoubleToUInt8(value[i]);\n\t\t\t\tok = TIFFWriteDirectoryTagByteArray(tif,ndir,dir,tag,count,(uint8*)conv);\n\t\t\t}\n\t\t\telse if (tif->tif_dir.td_bitspersample<=16)\n\t\t\t{\n\t\t\t\tfor (i = 0; i < count; ++i)\n\t\t\t\t\t((uint16*)conv)[i] = TIFFClampDoubleToUInt16(value[i]);\n\t\t\t\tok = TIFFWriteDirectoryTagShortArray(tif,ndir,dir,tag,count,(uint16*)conv);\n\t\t\t}\n\t\t\telse\n\t\t\t{\n\t\t\t\tfor (i = 0; i < count; ++i)\n\t\t\t\t\t((uint32*)conv)[i] = TIFFClampDoubleToUInt32(value[i]);\n\t\t\t\tok = TIFFWriteDirectoryTagLongArray(tif,ndir,dir,tag,count,(uint32*)conv);\n\t\t\t}\n\t\t\tbreak;\n\t\tdefault:\n\t\t\tok = 0;\n\t}\n\t_TIFFfree(conv);\n\treturn (ok);\n}', 'void*\n_TIFFmalloc(tmsize_t s)\n{\n if (s == 0)\n return ((void *) NULL);\n\treturn (malloc((size_t) s));\n}', 'static int\nTIFFWriteDirectoryTagSlongArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, int32* value)\n{\n\tif (dir==NULL)\n\t{\n\t\t(*ndir)++;\n\t\treturn(1);\n\t}\n\treturn(TIFFWriteDirectoryTagCheckedSlongArray(tif,ndir,dir,tag,count,value));\n}', 'static int\nTIFFWriteDirectoryTagCheckedSlongArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, int32* value)\n{\n\tassert(count<0x40000000);\n\tassert(sizeof(int32)==4);\n\tif (tif->tif_flags&TIFF_SWAB)\n\t\tTIFFSwabArrayOfLong((uint32*)value,count);\n\treturn(TIFFWriteDirectoryTagData(tif,ndir,dir,tag,TIFF_SLONG,count,count*4,value));\n}', 'void\nTIFFSwabArrayOfLong(register uint32* lp, tmsize_t n)\n{\n\tregister unsigned char *cp;\n\tregister unsigned char t;\n\tassert(sizeof(uint32)==4);\n\twhile (n-- > 0) {\n\t\tcp = (unsigned char *)lp;\n\t\tt = cp[3]; cp[3] = cp[0]; cp[0] = t;\n\t\tt = cp[2]; cp[2] = cp[1]; cp[1] = t;\n\t\tlp++;\n\t}\n}'] |
25,922 | 0 | https://github.com/openssl/openssl/blob/d4b009d5f88875ac0e3ac0b2b9689ed16a4c88dc/crypto/lhash/lhash.c/#L209 | void *lh_delete(_LHASH *lh, const void *data)
{
unsigned long hash;
LHASH_NODE *nn, **rn;
void *ret;
lh->error = 0;
rn = getrn(lh, data, &hash);
if (*rn == NULL) {
lh->num_no_delete++;
return (NULL);
} else {
nn = *rn;
*rn = nn->next;
ret = nn->data;
OPENSSL_free(nn);
lh->num_delete++;
}
lh->num_items--;
if ((lh->num_nodes > MIN_NODES) &&
(lh->down_load >= (lh->num_items * LH_LOAD_MULT / lh->num_nodes)))
contract(lh);
return (ret);
} | ['static int state_machine(SSL *s, int server)\n{\n BUF_MEM *buf = NULL;\n unsigned long Time = (unsigned long)time(NULL);\n void (*cb) (const SSL *ssl, int type, int val) = NULL;\n OSSL_STATEM *st = &s->statem;\n int ret = -1;\n int ssret;\n if (st->state == MSG_FLOW_ERROR) {\n return -1;\n }\n RAND_add(&Time, sizeof(Time), 0);\n ERR_clear_error();\n clear_sys_error();\n cb = get_callback(s);\n st->in_handshake++;\n if (!SSL_in_init(s) || SSL_in_before(s)) {\n if (!SSL_clear(s))\n return -1;\n }\n#ifndef OPENSSL_NO_SCTP\n if (SSL_IS_DTLS(s)) {\n BIO_ctrl(SSL_get_wbio(s), BIO_CTRL_DGRAM_SCTP_SET_IN_HANDSHAKE,\n st->in_handshake, NULL);\n }\n#endif\n#ifndef OPENSSL_NO_HEARTBEATS\n if (s->tlsext_hb_pending) {\n if (SSL_IS_DTLS(s))\n dtls1_stop_timer(s);\n s->tlsext_hb_pending = 0;\n s->tlsext_hb_seq++;\n }\n#endif\n if (st->state == MSG_FLOW_RENEGOTIATE) {\n s->renegotiate = 1;\n if (!server)\n s->ctx->stats.sess_connect_renegotiate++;\n }\n if (st->state == MSG_FLOW_UNINITED || st->state == MSG_FLOW_RENEGOTIATE) {\n if (st->state == MSG_FLOW_UNINITED) {\n st->hand_state = TLS_ST_BEFORE;\n }\n s->server = server;\n if (cb != NULL)\n cb(s, SSL_CB_HANDSHAKE_START, 1);\n if (SSL_IS_DTLS(s)) {\n if ((s->version & 0xff00) != (DTLS1_VERSION & 0xff00) &&\n (server\n || (s->version & 0xff00) != (DTLS1_BAD_VER & 0xff00))) {\n SSLerr(SSL_F_STATE_MACHINE, ERR_R_INTERNAL_ERROR);\n goto end;\n }\n } else {\n if ((s->version >> 8) != SSL3_VERSION_MAJOR) {\n SSLerr(SSL_F_STATE_MACHINE, ERR_R_INTERNAL_ERROR);\n goto end;\n }\n }\n if (!ssl_security(s, SSL_SECOP_VERSION, 0, s->version, NULL)) {\n SSLerr(SSL_F_STATE_MACHINE, SSL_R_VERSION_TOO_LOW);\n goto end;\n }\n if (s->init_buf == NULL) {\n if ((buf = BUF_MEM_new()) == NULL) {\n goto end;\n }\n if (!BUF_MEM_grow(buf, SSL3_RT_MAX_PLAIN_LENGTH)) {\n goto end;\n }\n s->init_buf = buf;\n buf = NULL;\n }\n if (!ssl3_setup_buffers(s)) {\n goto end;\n }\n s->init_num = 0;\n s->s3->change_cipher_spec = 0;\n if (!server || st->state != MSG_FLOW_RENEGOTIATE) {\n#ifndef OPENSSL_NO_SCTP\n if (!SSL_IS_DTLS(s) || !BIO_dgram_is_sctp(SSL_get_wbio(s)))\n#endif\n if (!ssl_init_wbio_buffer(s, server ? 1 : 0)) {\n goto end;\n }\n ssl3_init_finished_mac(s);\n }\n if (server) {\n if (st->state != MSG_FLOW_RENEGOTIATE) {\n s->ctx->stats.sess_accept++;\n } else if (!s->s3->send_connection_binding &&\n !(s->options &\n SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION)) {\n SSLerr(SSL_F_STATE_MACHINE,\n SSL_R_UNSAFE_LEGACY_RENEGOTIATION_DISABLED);\n ssl3_send_alert(s, SSL3_AL_FATAL, SSL_AD_HANDSHAKE_FAILURE);\n ossl_statem_set_error(s);\n goto end;\n } else {\n s->ctx->stats.sess_accept_renegotiate++;\n }\n } else {\n s->ctx->stats.sess_connect++;\n memset(s->s3->client_random, 0, sizeof(s->s3->client_random));\n s->hit = 0;\n s->s3->tmp.cert_request = 0;\n if (SSL_IS_DTLS(s)) {\n st->use_timer = 1;\n }\n }\n st->state = MSG_FLOW_WRITING;\n init_write_state_machine(s);\n st->read_state_first_init = 1;\n }\n while(st->state != MSG_FLOW_FINISHED) {\n if(st->state == MSG_FLOW_READING) {\n ssret = read_state_machine(s);\n if (ssret == SUB_STATE_FINISHED) {\n st->state = MSG_FLOW_WRITING;\n init_write_state_machine(s);\n } else {\n goto end;\n }\n } else if (st->state == MSG_FLOW_WRITING) {\n ssret = write_state_machine(s);\n if (ssret == SUB_STATE_FINISHED) {\n st->state = MSG_FLOW_READING;\n init_read_state_machine(s);\n } else if (ssret == SUB_STATE_END_HANDSHAKE) {\n st->state = MSG_FLOW_FINISHED;\n } else {\n goto end;\n }\n } else {\n ossl_statem_set_error(s);\n goto end;\n }\n }\n st->state = MSG_FLOW_UNINITED;\n ret = 1;\n end:\n st->in_handshake--;\n#ifndef OPENSSL_NO_SCTP\n if (SSL_IS_DTLS(s)) {\n BIO_ctrl(SSL_get_wbio(s), BIO_CTRL_DGRAM_SCTP_SET_IN_HANDSHAKE,\n st->in_handshake, NULL);\n }\n#endif\n BUF_MEM_free(buf);\n if (cb != NULL) {\n if (server)\n cb(s, SSL_CB_ACCEPT_EXIT, ret);\n else\n cb(s, SSL_CB_CONNECT_EXIT, ret);\n }\n return ret;\n}', 'int ssl3_send_alert(SSL *s, int level, int desc)\n{\n desc = s->method->ssl3_enc->alert_value(desc);\n if (s->version == SSL3_VERSION && desc == SSL_AD_PROTOCOL_VERSION)\n desc = SSL_AD_HANDSHAKE_FAILURE;\n if (desc < 0)\n return -1;\n if ((level == SSL3_AL_FATAL) && (s->session != NULL))\n SSL_CTX_remove_session(s->ctx, s->session);\n s->s3->alert_dispatch = 1;\n s->s3->send_alert[0] = level;\n s->s3->send_alert[1] = desc;\n if (!RECORD_LAYER_write_pending(&s->rlayer)) {\n return s->method->ssl_dispatch_alert(s);\n }\n return -1;\n}', 'int SSL_CTX_remove_session(SSL_CTX *ctx, SSL_SESSION *c)\n{\n return remove_session_lock(ctx, c, 1);\n}', 'static int remove_session_lock(SSL_CTX *ctx, SSL_SESSION *c, int lck)\n{\n SSL_SESSION *r;\n int ret = 0;\n if ((c != NULL) && (c->session_id_length != 0)) {\n if (lck)\n CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX);\n if ((r = lh_SSL_SESSION_retrieve(ctx->sessions, c)) == c) {\n ret = 1;\n r = lh_SSL_SESSION_delete(ctx->sessions, c);\n SSL_SESSION_list_remove(ctx, c);\n }\n if (lck)\n CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX);\n if (ret) {\n r->not_resumable = 1;\n if (ctx->remove_session_cb != NULL)\n ctx->remove_session_cb(ctx, r);\n SSL_SESSION_free(r);\n }\n } else\n ret = 0;\n return (ret);\n}', 'DEFINE_LHASH_OF(SSL_SESSION)', 'void *lh_delete(_LHASH *lh, const void *data)\n{\n unsigned long hash;\n LHASH_NODE *nn, **rn;\n void *ret;\n lh->error = 0;\n rn = getrn(lh, data, &hash);\n if (*rn == NULL) {\n lh->num_no_delete++;\n return (NULL);\n } else {\n nn = *rn;\n *rn = nn->next;\n ret = nn->data;\n OPENSSL_free(nn);\n lh->num_delete++;\n }\n lh->num_items--;\n if ((lh->num_nodes > MIN_NODES) &&\n (lh->down_load >= (lh->num_items * LH_LOAD_MULT / lh->num_nodes)))\n contract(lh);\n return (ret);\n}'] |
25,923 | 0 | https://github.com/libav/libav/blob/e652cc9606068189cb512a36f0335a5cf2ecf287/libavcodec/bmp.c/#L166 | static int bmp_decode_frame(AVCodecContext *avctx,
void *data, int *data_size,
AVPacket *avpkt)
{
const uint8_t *buf = avpkt->data;
int buf_size = avpkt->size;
BMPContext *s = avctx->priv_data;
AVFrame *picture = data;
AVFrame *p = &s->picture;
unsigned int fsize, hsize;
int width, height;
unsigned int depth;
BiCompression comp;
unsigned int ihsize;
int i, j, n, linesize;
uint32_t rgb[3];
uint8_t *ptr;
int dsize;
const uint8_t *buf0 = buf;
if(buf_size < 14){
av_log(avctx, AV_LOG_ERROR, "buf size too small (%d)\n", buf_size);
return -1;
}
if(bytestream_get_byte(&buf) != 'B' ||
bytestream_get_byte(&buf) != 'M') {
av_log(avctx, AV_LOG_ERROR, "bad magic number\n");
return -1;
}
fsize = bytestream_get_le32(&buf);
if(buf_size < fsize){
av_log(avctx, AV_LOG_ERROR, "not enough data (%d < %d), trying to decode anyway\n",
buf_size, fsize);
fsize = buf_size;
}
buf += 2;
buf += 2;
hsize = bytestream_get_le32(&buf);
ihsize = bytestream_get_le32(&buf);
if(ihsize + 14 > hsize){
av_log(avctx, AV_LOG_ERROR, "invalid header size %d\n", hsize);
return -1;
}
if(fsize == 14 || fsize == ihsize + 14)
fsize = buf_size - 2;
if(fsize <= hsize){
av_log(avctx, AV_LOG_ERROR, "declared file size is less than header size (%d < %d)\n",
fsize, hsize);
return -1;
}
switch(ihsize){
case 40:
case 64:
case 108:
case 124:
width = bytestream_get_le32(&buf);
height = bytestream_get_le32(&buf);
break;
case 12:
width = bytestream_get_le16(&buf);
height = bytestream_get_le16(&buf);
break;
default:
av_log(avctx, AV_LOG_ERROR, "unsupported BMP file, patch welcome\n");
return -1;
}
if(bytestream_get_le16(&buf) != 1){
av_log(avctx, AV_LOG_ERROR, "invalid BMP header\n");
return -1;
}
depth = bytestream_get_le16(&buf);
if(ihsize == 40)
comp = bytestream_get_le32(&buf);
else
comp = BMP_RGB;
if(comp != BMP_RGB && comp != BMP_BITFIELDS && comp != BMP_RLE4 && comp != BMP_RLE8){
av_log(avctx, AV_LOG_ERROR, "BMP coding %d not supported\n", comp);
return -1;
}
if(comp == BMP_BITFIELDS){
buf += 20;
rgb[0] = bytestream_get_le32(&buf);
rgb[1] = bytestream_get_le32(&buf);
rgb[2] = bytestream_get_le32(&buf);
}
avctx->width = width;
avctx->height = height > 0? height: -height;
avctx->pix_fmt = PIX_FMT_NONE;
switch(depth){
case 32:
if(comp == BMP_BITFIELDS){
rgb[0] = (rgb[0] >> 15) & 3;
rgb[1] = (rgb[1] >> 15) & 3;
rgb[2] = (rgb[2] >> 15) & 3;
if(rgb[0] + rgb[1] + rgb[2] != 3 ||
rgb[0] == rgb[1] || rgb[0] == rgb[2] || rgb[1] == rgb[2]){
break;
}
} else {
rgb[0] = 2;
rgb[1] = 1;
rgb[2] = 0;
}
avctx->pix_fmt = PIX_FMT_BGR24;
break;
case 24:
avctx->pix_fmt = PIX_FMT_BGR24;
break;
case 16:
if(comp == BMP_RGB)
avctx->pix_fmt = PIX_FMT_RGB555;
else if (comp == BMP_BITFIELDS) {
if (rgb[0] == 0xF800 && rgb[1] == 0x07E0 && rgb[2] == 0x001F)
avctx->pix_fmt = PIX_FMT_RGB565;
else if (rgb[0] == 0x7C00 && rgb[1] == 0x03E0 && rgb[2] == 0x001F)
avctx->pix_fmt = PIX_FMT_RGB555;
else if (rgb[0] == 0x0F00 && rgb[1] == 0x00F0 && rgb[2] == 0x000F)
avctx->pix_fmt = PIX_FMT_RGB444;
else {
av_log(avctx, AV_LOG_ERROR, "Unknown bitfields %0X %0X %0X\n", rgb[0], rgb[1], rgb[2]);
return AVERROR(EINVAL);
}
}
break;
case 8:
if(hsize - ihsize - 14 > 0)
avctx->pix_fmt = PIX_FMT_PAL8;
else
avctx->pix_fmt = PIX_FMT_GRAY8;
break;
case 1:
case 4:
if(hsize - ihsize - 14 > 0){
avctx->pix_fmt = PIX_FMT_PAL8;
}else{
av_log(avctx, AV_LOG_ERROR, "Unknown palette for %d-colour BMP\n", 1<<depth);
return -1;
}
break;
default:
av_log(avctx, AV_LOG_ERROR, "depth %d not supported\n", depth);
return -1;
}
if(avctx->pix_fmt == PIX_FMT_NONE){
av_log(avctx, AV_LOG_ERROR, "unsupported pixel format\n");
return -1;
}
if(p->data[0])
avctx->release_buffer(avctx, p);
p->reference = 0;
if(avctx->get_buffer(avctx, p) < 0){
av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
return -1;
}
p->pict_type = AV_PICTURE_TYPE_I;
p->key_frame = 1;
buf = buf0 + hsize;
dsize = buf_size - hsize;
n = ((avctx->width * depth) / 8 + 3) & ~3;
if(n * avctx->height > dsize && comp != BMP_RLE4 && comp != BMP_RLE8){
av_log(avctx, AV_LOG_ERROR, "not enough data (%d < %d)\n",
dsize, n * avctx->height);
return -1;
}
if(comp == BMP_RLE4 || comp == BMP_RLE8)
memset(p->data[0], 0, avctx->height * p->linesize[0]);
if(depth == 4 || depth == 8)
memset(p->data[1], 0, 1024);
if(height > 0){
ptr = p->data[0] + (avctx->height - 1) * p->linesize[0];
linesize = -p->linesize[0];
} else {
ptr = p->data[0];
linesize = p->linesize[0];
}
if(avctx->pix_fmt == PIX_FMT_PAL8){
int colors = 1 << depth;
if(ihsize >= 36){
int t;
buf = buf0 + 46;
t = bytestream_get_le32(&buf);
if(t < 0 || t > (1 << depth)){
av_log(avctx, AV_LOG_ERROR, "Incorrect number of colors - %X for bitdepth %d\n", t, depth);
}else if(t){
colors = t;
}
}
buf = buf0 + 14 + ihsize;
if((hsize-ihsize-14) < (colors << 2)){
for(i = 0; i < colors; i++)
((uint32_t*)p->data[1])[i] = bytestream_get_le24(&buf);
}else{
for(i = 0; i < colors; i++)
((uint32_t*)p->data[1])[i] = bytestream_get_le32(&buf);
}
buf = buf0 + hsize;
}
if(comp == BMP_RLE4 || comp == BMP_RLE8){
if(height < 0){
p->data[0] += p->linesize[0] * (avctx->height - 1);
p->linesize[0] = -p->linesize[0];
}
ff_msrle_decode(avctx, (AVPicture*)p, depth, buf, dsize);
if(height < 0){
p->data[0] += p->linesize[0] * (avctx->height - 1);
p->linesize[0] = -p->linesize[0];
}
}else{
switch(depth){
case 1:
for (i = 0; i < avctx->height; i++) {
int j;
for (j = 0; j < n; j++) {
ptr[j*8+0] = buf[j] >> 7;
ptr[j*8+1] = (buf[j] >> 6) & 1;
ptr[j*8+2] = (buf[j] >> 5) & 1;
ptr[j*8+3] = (buf[j] >> 4) & 1;
ptr[j*8+4] = (buf[j] >> 3) & 1;
ptr[j*8+5] = (buf[j] >> 2) & 1;
ptr[j*8+6] = (buf[j] >> 1) & 1;
ptr[j*8+7] = buf[j] & 1;
}
buf += n;
ptr += linesize;
}
break;
case 8:
case 24:
for(i = 0; i < avctx->height; i++){
memcpy(ptr, buf, n);
buf += n;
ptr += linesize;
}
break;
case 4:
for(i = 0; i < avctx->height; i++){
int j;
for(j = 0; j < n; j++){
ptr[j*2+0] = (buf[j] >> 4) & 0xF;
ptr[j*2+1] = buf[j] & 0xF;
}
buf += n;
ptr += linesize;
}
break;
case 16:
for(i = 0; i < avctx->height; i++){
const uint16_t *src = (const uint16_t *) buf;
uint16_t *dst = (uint16_t *) ptr;
for(j = 0; j < avctx->width; j++)
*dst++ = av_le2ne16(*src++);
buf += n;
ptr += linesize;
}
break;
case 32:
for(i = 0; i < avctx->height; i++){
const uint8_t *src = buf;
uint8_t *dst = ptr;
for(j = 0; j < avctx->width; j++){
dst[0] = src[rgb[2]];
dst[1] = src[rgb[1]];
dst[2] = src[rgb[0]];
dst += 3;
src += 4;
}
buf += n;
ptr += linesize;
}
break;
default:
av_log(avctx, AV_LOG_ERROR, "BMP decoder is broken\n");
return -1;
}
}
*picture = s->picture;
*data_size = sizeof(AVPicture);
return buf_size;
} | ['static int bmp_decode_frame(AVCodecContext *avctx,\n void *data, int *data_size,\n AVPacket *avpkt)\n{\n const uint8_t *buf = avpkt->data;\n int buf_size = avpkt->size;\n BMPContext *s = avctx->priv_data;\n AVFrame *picture = data;\n AVFrame *p = &s->picture;\n unsigned int fsize, hsize;\n int width, height;\n unsigned int depth;\n BiCompression comp;\n unsigned int ihsize;\n int i, j, n, linesize;\n uint32_t rgb[3];\n uint8_t *ptr;\n int dsize;\n const uint8_t *buf0 = buf;\n if(buf_size < 14){\n av_log(avctx, AV_LOG_ERROR, "buf size too small (%d)\\n", buf_size);\n return -1;\n }\n if(bytestream_get_byte(&buf) != \'B\' ||\n bytestream_get_byte(&buf) != \'M\') {\n av_log(avctx, AV_LOG_ERROR, "bad magic number\\n");\n return -1;\n }\n fsize = bytestream_get_le32(&buf);\n if(buf_size < fsize){\n av_log(avctx, AV_LOG_ERROR, "not enough data (%d < %d), trying to decode anyway\\n",\n buf_size, fsize);\n fsize = buf_size;\n }\n buf += 2;\n buf += 2;\n hsize = bytestream_get_le32(&buf);\n ihsize = bytestream_get_le32(&buf);\n if(ihsize + 14 > hsize){\n av_log(avctx, AV_LOG_ERROR, "invalid header size %d\\n", hsize);\n return -1;\n }\n if(fsize == 14 || fsize == ihsize + 14)\n fsize = buf_size - 2;\n if(fsize <= hsize){\n av_log(avctx, AV_LOG_ERROR, "declared file size is less than header size (%d < %d)\\n",\n fsize, hsize);\n return -1;\n }\n switch(ihsize){\n case 40:\n case 64:\n case 108:\n case 124:\n width = bytestream_get_le32(&buf);\n height = bytestream_get_le32(&buf);\n break;\n case 12:\n width = bytestream_get_le16(&buf);\n height = bytestream_get_le16(&buf);\n break;\n default:\n av_log(avctx, AV_LOG_ERROR, "unsupported BMP file, patch welcome\\n");\n return -1;\n }\n if(bytestream_get_le16(&buf) != 1){\n av_log(avctx, AV_LOG_ERROR, "invalid BMP header\\n");\n return -1;\n }\n depth = bytestream_get_le16(&buf);\n if(ihsize == 40)\n comp = bytestream_get_le32(&buf);\n else\n comp = BMP_RGB;\n if(comp != BMP_RGB && comp != BMP_BITFIELDS && comp != BMP_RLE4 && comp != BMP_RLE8){\n av_log(avctx, AV_LOG_ERROR, "BMP coding %d not supported\\n", comp);\n return -1;\n }\n if(comp == BMP_BITFIELDS){\n buf += 20;\n rgb[0] = bytestream_get_le32(&buf);\n rgb[1] = bytestream_get_le32(&buf);\n rgb[2] = bytestream_get_le32(&buf);\n }\n avctx->width = width;\n avctx->height = height > 0? height: -height;\n avctx->pix_fmt = PIX_FMT_NONE;\n switch(depth){\n case 32:\n if(comp == BMP_BITFIELDS){\n rgb[0] = (rgb[0] >> 15) & 3;\n rgb[1] = (rgb[1] >> 15) & 3;\n rgb[2] = (rgb[2] >> 15) & 3;\n if(rgb[0] + rgb[1] + rgb[2] != 3 ||\n rgb[0] == rgb[1] || rgb[0] == rgb[2] || rgb[1] == rgb[2]){\n break;\n }\n } else {\n rgb[0] = 2;\n rgb[1] = 1;\n rgb[2] = 0;\n }\n avctx->pix_fmt = PIX_FMT_BGR24;\n break;\n case 24:\n avctx->pix_fmt = PIX_FMT_BGR24;\n break;\n case 16:\n if(comp == BMP_RGB)\n avctx->pix_fmt = PIX_FMT_RGB555;\n else if (comp == BMP_BITFIELDS) {\n if (rgb[0] == 0xF800 && rgb[1] == 0x07E0 && rgb[2] == 0x001F)\n avctx->pix_fmt = PIX_FMT_RGB565;\n else if (rgb[0] == 0x7C00 && rgb[1] == 0x03E0 && rgb[2] == 0x001F)\n avctx->pix_fmt = PIX_FMT_RGB555;\n else if (rgb[0] == 0x0F00 && rgb[1] == 0x00F0 && rgb[2] == 0x000F)\n avctx->pix_fmt = PIX_FMT_RGB444;\n else {\n av_log(avctx, AV_LOG_ERROR, "Unknown bitfields %0X %0X %0X\\n", rgb[0], rgb[1], rgb[2]);\n return AVERROR(EINVAL);\n }\n }\n break;\n case 8:\n if(hsize - ihsize - 14 > 0)\n avctx->pix_fmt = PIX_FMT_PAL8;\n else\n avctx->pix_fmt = PIX_FMT_GRAY8;\n break;\n case 1:\n case 4:\n if(hsize - ihsize - 14 > 0){\n avctx->pix_fmt = PIX_FMT_PAL8;\n }else{\n av_log(avctx, AV_LOG_ERROR, "Unknown palette for %d-colour BMP\\n", 1<<depth);\n return -1;\n }\n break;\n default:\n av_log(avctx, AV_LOG_ERROR, "depth %d not supported\\n", depth);\n return -1;\n }\n if(avctx->pix_fmt == PIX_FMT_NONE){\n av_log(avctx, AV_LOG_ERROR, "unsupported pixel format\\n");\n return -1;\n }\n if(p->data[0])\n avctx->release_buffer(avctx, p);\n p->reference = 0;\n if(avctx->get_buffer(avctx, p) < 0){\n av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\\n");\n return -1;\n }\n p->pict_type = AV_PICTURE_TYPE_I;\n p->key_frame = 1;\n buf = buf0 + hsize;\n dsize = buf_size - hsize;\n n = ((avctx->width * depth) / 8 + 3) & ~3;\n if(n * avctx->height > dsize && comp != BMP_RLE4 && comp != BMP_RLE8){\n av_log(avctx, AV_LOG_ERROR, "not enough data (%d < %d)\\n",\n dsize, n * avctx->height);\n return -1;\n }\n if(comp == BMP_RLE4 || comp == BMP_RLE8)\n memset(p->data[0], 0, avctx->height * p->linesize[0]);\n if(depth == 4 || depth == 8)\n memset(p->data[1], 0, 1024);\n if(height > 0){\n ptr = p->data[0] + (avctx->height - 1) * p->linesize[0];\n linesize = -p->linesize[0];\n } else {\n ptr = p->data[0];\n linesize = p->linesize[0];\n }\n if(avctx->pix_fmt == PIX_FMT_PAL8){\n int colors = 1 << depth;\n if(ihsize >= 36){\n int t;\n buf = buf0 + 46;\n t = bytestream_get_le32(&buf);\n if(t < 0 || t > (1 << depth)){\n av_log(avctx, AV_LOG_ERROR, "Incorrect number of colors - %X for bitdepth %d\\n", t, depth);\n }else if(t){\n colors = t;\n }\n }\n buf = buf0 + 14 + ihsize;\n if((hsize-ihsize-14) < (colors << 2)){\n for(i = 0; i < colors; i++)\n ((uint32_t*)p->data[1])[i] = bytestream_get_le24(&buf);\n }else{\n for(i = 0; i < colors; i++)\n ((uint32_t*)p->data[1])[i] = bytestream_get_le32(&buf);\n }\n buf = buf0 + hsize;\n }\n if(comp == BMP_RLE4 || comp == BMP_RLE8){\n if(height < 0){\n p->data[0] += p->linesize[0] * (avctx->height - 1);\n p->linesize[0] = -p->linesize[0];\n }\n ff_msrle_decode(avctx, (AVPicture*)p, depth, buf, dsize);\n if(height < 0){\n p->data[0] += p->linesize[0] * (avctx->height - 1);\n p->linesize[0] = -p->linesize[0];\n }\n }else{\n switch(depth){\n case 1:\n for (i = 0; i < avctx->height; i++) {\n int j;\n for (j = 0; j < n; j++) {\n ptr[j*8+0] = buf[j] >> 7;\n ptr[j*8+1] = (buf[j] >> 6) & 1;\n ptr[j*8+2] = (buf[j] >> 5) & 1;\n ptr[j*8+3] = (buf[j] >> 4) & 1;\n ptr[j*8+4] = (buf[j] >> 3) & 1;\n ptr[j*8+5] = (buf[j] >> 2) & 1;\n ptr[j*8+6] = (buf[j] >> 1) & 1;\n ptr[j*8+7] = buf[j] & 1;\n }\n buf += n;\n ptr += linesize;\n }\n break;\n case 8:\n case 24:\n for(i = 0; i < avctx->height; i++){\n memcpy(ptr, buf, n);\n buf += n;\n ptr += linesize;\n }\n break;\n case 4:\n for(i = 0; i < avctx->height; i++){\n int j;\n for(j = 0; j < n; j++){\n ptr[j*2+0] = (buf[j] >> 4) & 0xF;\n ptr[j*2+1] = buf[j] & 0xF;\n }\n buf += n;\n ptr += linesize;\n }\n break;\n case 16:\n for(i = 0; i < avctx->height; i++){\n const uint16_t *src = (const uint16_t *) buf;\n uint16_t *dst = (uint16_t *) ptr;\n for(j = 0; j < avctx->width; j++)\n *dst++ = av_le2ne16(*src++);\n buf += n;\n ptr += linesize;\n }\n break;\n case 32:\n for(i = 0; i < avctx->height; i++){\n const uint8_t *src = buf;\n uint8_t *dst = ptr;\n for(j = 0; j < avctx->width; j++){\n dst[0] = src[rgb[2]];\n dst[1] = src[rgb[1]];\n dst[2] = src[rgb[0]];\n dst += 3;\n src += 4;\n }\n buf += n;\n ptr += linesize;\n }\n break;\n default:\n av_log(avctx, AV_LOG_ERROR, "BMP decoder is broken\\n");\n return -1;\n }\n }\n *picture = s->picture;\n *data_size = sizeof(AVPicture);\n return buf_size;\n}'] |
25,924 | 0 | https://github.com/openssl/openssl/blob/ea32151f7b9353f8906188d007c6893704ac17bb/crypto/evp/m_sigver.c/#L157 | int EVP_DigestVerifyFinal(EVP_MD_CTX *ctx, const unsigned char *sig,
size_t siglen)
{
unsigned char md[EVP_MAX_MD_SIZE];
int r = 0;
unsigned int mdlen = 0;
int vctx = 0;
if (ctx->pctx->pmeth->verifyctx)
vctx = 1;
else
vctx = 0;
if (ctx->flags & EVP_MD_CTX_FLAG_FINALISE) {
if (vctx) {
r = ctx->pctx->pmeth->verifyctx(ctx->pctx, sig, siglen, ctx);
} else
r = EVP_DigestFinal_ex(ctx, md, &mdlen);
} else {
EVP_MD_CTX *tmp_ctx = EVP_MD_CTX_new();
if (tmp_ctx == NULL || !EVP_MD_CTX_copy_ex(tmp_ctx, ctx))
return -1;
if (vctx) {
r = tmp_ctx->pctx->pmeth->verifyctx(tmp_ctx->pctx,
sig, siglen, tmp_ctx);
} else
r = EVP_DigestFinal_ex(tmp_ctx, md, &mdlen);
EVP_MD_CTX_free(tmp_ctx);
}
if (vctx || !r)
return r;
return EVP_PKEY_verify(ctx->pctx, sig, siglen, md, mdlen);
} | ['int EVP_DigestVerifyFinal(EVP_MD_CTX *ctx, const unsigned char *sig,\n size_t siglen)\n{\n unsigned char md[EVP_MAX_MD_SIZE];\n int r = 0;\n unsigned int mdlen = 0;\n int vctx = 0;\n if (ctx->pctx->pmeth->verifyctx)\n vctx = 1;\n else\n vctx = 0;\n if (ctx->flags & EVP_MD_CTX_FLAG_FINALISE) {\n if (vctx) {\n r = ctx->pctx->pmeth->verifyctx(ctx->pctx, sig, siglen, ctx);\n } else\n r = EVP_DigestFinal_ex(ctx, md, &mdlen);\n } else {\n EVP_MD_CTX *tmp_ctx = EVP_MD_CTX_new();\n if (tmp_ctx == NULL || !EVP_MD_CTX_copy_ex(tmp_ctx, ctx))\n return -1;\n if (vctx) {\n r = tmp_ctx->pctx->pmeth->verifyctx(tmp_ctx->pctx,\n sig, siglen, tmp_ctx);\n } else\n r = EVP_DigestFinal_ex(tmp_ctx, md, &mdlen);\n EVP_MD_CTX_free(tmp_ctx);\n }\n if (vctx || !r)\n return r;\n return EVP_PKEY_verify(ctx->pctx, sig, siglen, md, mdlen);\n}', 'EVP_MD_CTX *EVP_MD_CTX_new(void)\n{\n return OPENSSL_zalloc(sizeof(EVP_MD_CTX));\n}', 'void *CRYPTO_zalloc(size_t num, const char *file, int line)\n{\n void *ret = CRYPTO_malloc(num, file, line);\n if (ret != NULL)\n memset(ret, 0, num);\n return ret;\n}', 'void *CRYPTO_malloc(size_t num, const char *file, int line)\n{\n void *ret = NULL;\n if (malloc_impl != NULL && malloc_impl != CRYPTO_malloc)\n return malloc_impl(num, file, line);\n if (num <= 0)\n return NULL;\n allow_customize = 0;\n#ifndef OPENSSL_NO_CRYPTO_MDEBUG\n if (call_malloc_debug) {\n CRYPTO_mem_debug_malloc(NULL, num, 0, file, line);\n ret = malloc(num);\n CRYPTO_mem_debug_malloc(ret, num, 1, file, line);\n } else {\n ret = malloc(num);\n }\n#else\n osslargused(file); osslargused(line);\n ret = malloc(num);\n#endif\n return ret;\n}', 'int EVP_MD_CTX_copy_ex(EVP_MD_CTX *out, const EVP_MD_CTX *in)\n{\n unsigned char *tmp_buf;\n if ((in == NULL) || (in->digest == NULL)) {\n EVPerr(EVP_F_EVP_MD_CTX_COPY_EX, EVP_R_INPUT_NOT_INITIALIZED);\n return 0;\n }\n#ifndef OPENSSL_NO_ENGINE\n if (in->engine && !ENGINE_init(in->engine)) {\n EVPerr(EVP_F_EVP_MD_CTX_COPY_EX, ERR_R_ENGINE_LIB);\n return 0;\n }\n#endif\n if (out->digest == in->digest) {\n tmp_buf = out->md_data;\n EVP_MD_CTX_set_flags(out, EVP_MD_CTX_FLAG_REUSE);\n } else\n tmp_buf = NULL;\n EVP_MD_CTX_reset(out);\n memcpy(out, in, sizeof(*out));\n out->md_data = NULL;\n out->pctx = NULL;\n if (in->md_data && out->digest->ctx_size) {\n if (tmp_buf)\n out->md_data = tmp_buf;\n else {\n out->md_data = OPENSSL_malloc(out->digest->ctx_size);\n if (out->md_data == NULL) {\n EVPerr(EVP_F_EVP_MD_CTX_COPY_EX, ERR_R_MALLOC_FAILURE);\n return 0;\n }\n }\n memcpy(out->md_data, in->md_data, out->digest->ctx_size);\n }\n out->update = in->update;\n if (in->pctx) {\n out->pctx = EVP_PKEY_CTX_dup(in->pctx);\n if (!out->pctx) {\n EVP_MD_CTX_reset(out);\n return 0;\n }\n }\n if (out->digest->copy)\n return out->digest->copy(out, in);\n return 1;\n}'] |
25,925 | 0 | https://github.com/libav/libav/blob/01fdfa51aca9086e04bd354fe3f103a49352c085/libavformat/utils.c/#L2469 | void avformat_free_context(AVFormatContext *s)
{
int i, j;
AVStream *st;
if (!s)
return;
av_opt_free(s);
if (s->iformat && s->iformat->priv_class && s->priv_data)
av_opt_free(s->priv_data);
for (i = 0; i < s->nb_streams; i++) {
st = s->streams[i];
for (j = 0; j < st->nb_side_data; j++)
av_freep(&st->side_data[j].data);
av_freep(&st->side_data);
st->nb_side_data = 0;
if (st->parser) {
av_parser_close(st->parser);
}
if (st->attached_pic.data)
av_free_packet(&st->attached_pic);
av_dict_free(&st->metadata);
av_freep(&st->probe_data.buf);
av_free(st->index_entries);
av_free(st->codec->extradata);
av_free(st->codec->subtitle_header);
av_free(st->codec);
av_free(st->priv_data);
av_free(st->info);
av_free(st);
}
for (i = s->nb_programs - 1; i >= 0; i--) {
av_dict_free(&s->programs[i]->metadata);
av_freep(&s->programs[i]->stream_index);
av_freep(&s->programs[i]);
}
av_freep(&s->programs);
av_freep(&s->priv_data);
while (s->nb_chapters--) {
av_dict_free(&s->chapters[s->nb_chapters]->metadata);
av_free(s->chapters[s->nb_chapters]);
}
av_freep(&s->chapters);
av_dict_free(&s->metadata);
av_freep(&s->streams);
av_freep(&s->internal);
av_free(s);
} | ['static int probe_file(const char *filename)\n{\n AVFormatContext *fmt_ctx;\n int ret, i;\n if ((ret = open_input_file(&fmt_ctx, filename)))\n return ret;\n if (do_show_format)\n show_format(fmt_ctx);\n if (do_show_streams) {\n probe_array_header("streams", 0);\n for (i = 0; i < fmt_ctx->nb_streams; i++)\n show_stream(fmt_ctx, i);\n probe_array_footer("streams", 0);\n }\n if (do_show_packets)\n show_packets(fmt_ctx);\n close_input_file(&fmt_ctx);\n return 0;\n}', 'static void close_input_file(AVFormatContext **ctx_ptr)\n{\n int i;\n AVFormatContext *fmt_ctx = *ctx_ptr;\n for (i = 0; i < fmt_ctx->nb_streams; i++) {\n AVStream *stream = fmt_ctx->streams[i];\n avcodec_close(stream->codec);\n }\n avformat_close_input(ctx_ptr);\n}', 'void avformat_close_input(AVFormatContext **ps)\n{\n AVFormatContext *s = *ps;\n AVIOContext *pb = s->pb;\n if ((s->iformat && s->iformat->flags & AVFMT_NOFILE) ||\n (s->flags & AVFMT_FLAG_CUSTOM_IO))\n pb = NULL;\n flush_packet_queue(s);\n if (s->iformat)\n if (s->iformat->read_close)\n s->iformat->read_close(s);\n avformat_free_context(s);\n *ps = NULL;\n avio_close(pb);\n}', 'void avformat_free_context(AVFormatContext *s)\n{\n int i, j;\n AVStream *st;\n if (!s)\n return;\n av_opt_free(s);\n if (s->iformat && s->iformat->priv_class && s->priv_data)\n av_opt_free(s->priv_data);\n for (i = 0; i < s->nb_streams; i++) {\n st = s->streams[i];\n for (j = 0; j < st->nb_side_data; j++)\n av_freep(&st->side_data[j].data);\n av_freep(&st->side_data);\n st->nb_side_data = 0;\n if (st->parser) {\n av_parser_close(st->parser);\n }\n if (st->attached_pic.data)\n av_free_packet(&st->attached_pic);\n av_dict_free(&st->metadata);\n av_freep(&st->probe_data.buf);\n av_free(st->index_entries);\n av_free(st->codec->extradata);\n av_free(st->codec->subtitle_header);\n av_free(st->codec);\n av_free(st->priv_data);\n av_free(st->info);\n av_free(st);\n }\n for (i = s->nb_programs - 1; i >= 0; i--) {\n av_dict_free(&s->programs[i]->metadata);\n av_freep(&s->programs[i]->stream_index);\n av_freep(&s->programs[i]);\n }\n av_freep(&s->programs);\n av_freep(&s->priv_data);\n while (s->nb_chapters--) {\n av_dict_free(&s->chapters[s->nb_chapters]->metadata);\n av_free(s->chapters[s->nb_chapters]);\n }\n av_freep(&s->chapters);\n av_dict_free(&s->metadata);\n av_freep(&s->streams);\n av_freep(&s->internal);\n av_free(s);\n}'] |
25,926 | 0 | https://github.com/nginx/nginx/blob/e4ecddfdb0d2ffc872658e36028971ad9a873726/src/core/ngx_hash.c/#L980 | ngx_int_t
ngx_hash_add_key(ngx_hash_keys_arrays_t *ha, ngx_str_t *key, void *value,
ngx_uint_t flags)
{
size_t len;
u_char *p;
ngx_str_t *name;
ngx_uint_t i, k, n, skip, last;
ngx_array_t *keys, *hwc;
ngx_hash_key_t *hk;
last = key->len;
if (flags & NGX_HASH_WILDCARD_KEY) {
n = 0;
for (i = 0; i < key->len; i++) {
if (key->data[i] == '*') {
if (++n > 1) {
return NGX_DECLINED;
}
}
if (key->data[i] == '.' && key->data[i + 1] == '.') {
return NGX_DECLINED;
}
}
if (key->len > 1 && key->data[0] == '.') {
skip = 1;
goto wildcard;
}
if (key->len > 2) {
if (key->data[0] == '*' && key->data[1] == '.') {
skip = 2;
goto wildcard;
}
if (key->data[i - 2] == '.' && key->data[i - 1] == '*') {
skip = 0;
last -= 2;
goto wildcard;
}
}
if (n) {
return NGX_DECLINED;
}
}
k = 0;
for (i = 0; i < last; i++) {
if (!(flags & NGX_HASH_READONLY_KEY)) {
key->data[i] = ngx_tolower(key->data[i]);
}
k = ngx_hash(k, key->data[i]);
}
k %= ha->hsize;
name = ha->keys_hash[k].elts;
if (name) {
for (i = 0; i < ha->keys_hash[k].nelts; i++) {
if (last != name[i].len) {
continue;
}
if (ngx_strncmp(key->data, name[i].data, last) == 0) {
return NGX_BUSY;
}
}
} else {
if (ngx_array_init(&ha->keys_hash[k], ha->temp_pool, 4,
sizeof(ngx_str_t))
!= NGX_OK)
{
return NGX_ERROR;
}
}
name = ngx_array_push(&ha->keys_hash[k]);
if (name == NULL) {
return NGX_ERROR;
}
*name = *key;
hk = ngx_array_push(&ha->keys);
if (hk == NULL) {
return NGX_ERROR;
}
hk->key = *key;
hk->key_hash = ngx_hash_key(key->data, last);
hk->value = value;
return NGX_OK;
wildcard:
k = ngx_hash_strlow(&key->data[skip], &key->data[skip], last - skip);
k %= ha->hsize;
if (skip == 1) {
name = ha->keys_hash[k].elts;
if (name) {
len = last - skip;
for (i = 0; i < ha->keys_hash[k].nelts; i++) {
if (len != name[i].len) {
continue;
}
if (ngx_strncmp(&key->data[1], name[i].data, len) == 0) {
return NGX_BUSY;
}
}
} else {
if (ngx_array_init(&ha->keys_hash[k], ha->temp_pool, 4,
sizeof(ngx_str_t))
!= NGX_OK)
{
return NGX_ERROR;
}
}
name = ngx_array_push(&ha->keys_hash[k]);
if (name == NULL) {
return NGX_ERROR;
}
name->len = last - 1;
name->data = ngx_pnalloc(ha->temp_pool, name->len);
if (name->data == NULL) {
return NGX_ERROR;
}
ngx_memcpy(name->data, &key->data[1], name->len);
}
if (skip) {
p = ngx_pnalloc(ha->temp_pool, last);
if (p == NULL) {
return NGX_ERROR;
}
len = 0;
n = 0;
for (i = last - 1; i; i--) {
if (key->data[i] == '.') {
ngx_memcpy(&p[n], &key->data[i + 1], len);
n += len;
p[n++] = '.';
len = 0;
continue;
}
len++;
}
if (len) {
ngx_memcpy(&p[n], &key->data[1], len);
n += len;
}
p[n] = '\0';
hwc = &ha->dns_wc_head;
keys = &ha->dns_wc_head_hash[k];
} else {
last++;
p = ngx_pnalloc(ha->temp_pool, last);
if (p == NULL) {
return NGX_ERROR;
}
ngx_cpystrn(p, key->data, last);
hwc = &ha->dns_wc_tail;
keys = &ha->dns_wc_tail_hash[k];
}
hk = ngx_array_push(hwc);
if (hk == NULL) {
return NGX_ERROR;
}
hk->key.len = last - 1;
hk->key.data = p;
hk->key_hash = 0;
hk->value = value;
name = keys->elts;
if (name) {
len = last - skip;
for (i = 0; i < keys->nelts; i++) {
if (len != name[i].len) {
continue;
}
if (ngx_strncmp(key->data + skip, name[i].data, len) == 0) {
return NGX_BUSY;
}
}
} else {
if (ngx_array_init(keys, ha->temp_pool, 4, sizeof(ngx_str_t)) != NGX_OK)
{
return NGX_ERROR;
}
}
name = ngx_array_push(keys);
if (name == NULL) {
return NGX_ERROR;
}
name->len = last - skip;
name->data = ngx_pnalloc(ha->temp_pool, name->len);
if (name->data == NULL) {
return NGX_ERROR;
}
ngx_memcpy(name->data, key->data + skip, name->len);
return NGX_OK;
} | ['static ngx_int_t\nngx_http_proxy_add_variables(ngx_conf_t *cf)\n{\n ngx_http_variable_t *var, *v;\n for (v = ngx_http_proxy_vars; v->name.len; v++) {\n var = ngx_http_add_variable(cf, &v->name, v->flags);\n if (var == NULL) {\n return NGX_ERROR;\n }\n var->get_handler = v->get_handler;\n var->data = v->data;\n }\n return NGX_OK;\n}', 'ngx_http_variable_t *\nngx_http_add_variable(ngx_conf_t *cf, ngx_str_t *name, ngx_uint_t flags)\n{\n ngx_int_t rc;\n ngx_uint_t i;\n ngx_hash_key_t *key;\n ngx_http_variable_t *v;\n ngx_http_core_main_conf_t *cmcf;\n cmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_core_module);\n key = cmcf->variables_keys->keys.elts;\n for (i = 0; i < cmcf->variables_keys->keys.nelts; i++) {\n if (name->len != key[i].key.len\n || ngx_strncasecmp(name->data, key[i].key.data, name->len) != 0)\n {\n continue;\n }\n v = key[i].value;\n if (!(v->flags & NGX_HTTP_VAR_CHANGEABLE)) {\n ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,\n "the duplicate \\"%V\\" variable", name);\n return NULL;\n }\n return v;\n }\n v = ngx_palloc(cf->pool, sizeof(ngx_http_variable_t));\n if (v == NULL) {\n return NULL;\n }\n v->name.len = name->len;\n v->name.data = ngx_pnalloc(cf->pool, name->len);\n if (v->name.data == NULL) {\n return NULL;\n }\n ngx_strlow(v->name.data, name->data, name->len);\n v->set_handler = NULL;\n v->get_handler = NULL;\n v->data = 0;\n v->flags = flags;\n v->index = 0;\n rc = ngx_hash_add_key(cmcf->variables_keys, &v->name, v, 0);\n if (rc == NGX_ERROR) {\n return NULL;\n }\n if (rc == NGX_BUSY) {\n ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,\n "conflicting variable name \\"%V\\"", name);\n return NULL;\n }\n return v;\n}', "ngx_int_t\nngx_hash_add_key(ngx_hash_keys_arrays_t *ha, ngx_str_t *key, void *value,\n ngx_uint_t flags)\n{\n size_t len;\n u_char *p;\n ngx_str_t *name;\n ngx_uint_t i, k, n, skip, last;\n ngx_array_t *keys, *hwc;\n ngx_hash_key_t *hk;\n last = key->len;\n if (flags & NGX_HASH_WILDCARD_KEY) {\n n = 0;\n for (i = 0; i < key->len; i++) {\n if (key->data[i] == '*') {\n if (++n > 1) {\n return NGX_DECLINED;\n }\n }\n if (key->data[i] == '.' && key->data[i + 1] == '.') {\n return NGX_DECLINED;\n }\n }\n if (key->len > 1 && key->data[0] == '.') {\n skip = 1;\n goto wildcard;\n }\n if (key->len > 2) {\n if (key->data[0] == '*' && key->data[1] == '.') {\n skip = 2;\n goto wildcard;\n }\n if (key->data[i - 2] == '.' && key->data[i - 1] == '*') {\n skip = 0;\n last -= 2;\n goto wildcard;\n }\n }\n if (n) {\n return NGX_DECLINED;\n }\n }\n k = 0;\n for (i = 0; i < last; i++) {\n if (!(flags & NGX_HASH_READONLY_KEY)) {\n key->data[i] = ngx_tolower(key->data[i]);\n }\n k = ngx_hash(k, key->data[i]);\n }\n k %= ha->hsize;\n name = ha->keys_hash[k].elts;\n if (name) {\n for (i = 0; i < ha->keys_hash[k].nelts; i++) {\n if (last != name[i].len) {\n continue;\n }\n if (ngx_strncmp(key->data, name[i].data, last) == 0) {\n return NGX_BUSY;\n }\n }\n } else {\n if (ngx_array_init(&ha->keys_hash[k], ha->temp_pool, 4,\n sizeof(ngx_str_t))\n != NGX_OK)\n {\n return NGX_ERROR;\n }\n }\n name = ngx_array_push(&ha->keys_hash[k]);\n if (name == NULL) {\n return NGX_ERROR;\n }\n *name = *key;\n hk = ngx_array_push(&ha->keys);\n if (hk == NULL) {\n return NGX_ERROR;\n }\n hk->key = *key;\n hk->key_hash = ngx_hash_key(key->data, last);\n hk->value = value;\n return NGX_OK;\nwildcard:\n k = ngx_hash_strlow(&key->data[skip], &key->data[skip], last - skip);\n k %= ha->hsize;\n if (skip == 1) {\n name = ha->keys_hash[k].elts;\n if (name) {\n len = last - skip;\n for (i = 0; i < ha->keys_hash[k].nelts; i++) {\n if (len != name[i].len) {\n continue;\n }\n if (ngx_strncmp(&key->data[1], name[i].data, len) == 0) {\n return NGX_BUSY;\n }\n }\n } else {\n if (ngx_array_init(&ha->keys_hash[k], ha->temp_pool, 4,\n sizeof(ngx_str_t))\n != NGX_OK)\n {\n return NGX_ERROR;\n }\n }\n name = ngx_array_push(&ha->keys_hash[k]);\n if (name == NULL) {\n return NGX_ERROR;\n }\n name->len = last - 1;\n name->data = ngx_pnalloc(ha->temp_pool, name->len);\n if (name->data == NULL) {\n return NGX_ERROR;\n }\n ngx_memcpy(name->data, &key->data[1], name->len);\n }\n if (skip) {\n p = ngx_pnalloc(ha->temp_pool, last);\n if (p == NULL) {\n return NGX_ERROR;\n }\n len = 0;\n n = 0;\n for (i = last - 1; i; i--) {\n if (key->data[i] == '.') {\n ngx_memcpy(&p[n], &key->data[i + 1], len);\n n += len;\n p[n++] = '.';\n len = 0;\n continue;\n }\n len++;\n }\n if (len) {\n ngx_memcpy(&p[n], &key->data[1], len);\n n += len;\n }\n p[n] = '\\0';\n hwc = &ha->dns_wc_head;\n keys = &ha->dns_wc_head_hash[k];\n } else {\n last++;\n p = ngx_pnalloc(ha->temp_pool, last);\n if (p == NULL) {\n return NGX_ERROR;\n }\n ngx_cpystrn(p, key->data, last);\n hwc = &ha->dns_wc_tail;\n keys = &ha->dns_wc_tail_hash[k];\n }\n hk = ngx_array_push(hwc);\n if (hk == NULL) {\n return NGX_ERROR;\n }\n hk->key.len = last - 1;\n hk->key.data = p;\n hk->key_hash = 0;\n hk->value = value;\n name = keys->elts;\n if (name) {\n len = last - skip;\n for (i = 0; i < keys->nelts; i++) {\n if (len != name[i].len) {\n continue;\n }\n if (ngx_strncmp(key->data + skip, name[i].data, len) == 0) {\n return NGX_BUSY;\n }\n }\n } else {\n if (ngx_array_init(keys, ha->temp_pool, 4, sizeof(ngx_str_t)) != NGX_OK)\n {\n return NGX_ERROR;\n }\n }\n name = ngx_array_push(keys);\n if (name == NULL) {\n return NGX_ERROR;\n }\n name->len = last - skip;\n name->data = ngx_pnalloc(ha->temp_pool, name->len);\n if (name->data == NULL) {\n return NGX_ERROR;\n }\n ngx_memcpy(name->data, key->data + skip, name->len);\n return NGX_OK;\n}"] |
25,927 | 0 | https://github.com/libav/libav/blob/f653095bdd5f6c25960f75b81b138dd78f73ca37/libavcodec/dv.c/#L1106 | static int dv_encode_video_segment(AVCodecContext *avctx, DVwork_chunk *work_chunk)
{
DVVideoContext *s = avctx->priv_data;
int mb_index, i, j;
int mb_x, mb_y, c_offset, linesize;
uint8_t* y_ptr;
uint8_t* data;
uint8_t* ptr;
uint8_t* dif;
int do_edge_wrap;
DECLARE_ALIGNED_16(DCTELEM, block[64]);
EncBlockInfo enc_blks[5*6];
PutBitContext pbs[5*6];
PutBitContext* pb;
EncBlockInfo* enc_blk;
int vs_bit_size = 0;
int qnos[5];
assert((((int)block) & 15) == 0);
dif = &s->buf[work_chunk->buf_offset*80];
enc_blk = &enc_blks[0];
pb = &pbs[0];
for (mb_index = 0; mb_index < 5; mb_index++) {
dv_calculate_mb_xy(s, work_chunk, mb_index, &mb_x, &mb_y);
y_ptr = s->picture.data[0] + ((mb_y * s->picture.linesize[0] + mb_x) << 3);
c_offset = (((mb_y >> (s->sys->pix_fmt == PIX_FMT_YUV420P)) * s->picture.linesize[1] +
(mb_x >> ((s->sys->pix_fmt == PIX_FMT_YUV411P) ? 2 : 1))) << 3);
do_edge_wrap = 0;
qnos[mb_index] = 15;
ptr = dif + mb_index*80 + 4;
for (j = 0; j < 6; j++) {
int dummy = 0;
if (s->sys->pix_fmt == PIX_FMT_YUV422P) {
if (j == 0 || j == 2) {
data = y_ptr + ((j >> 1) * 8);
linesize = s->picture.linesize[0];
} else if (j > 3) {
data = s->picture.data[6 - j] + c_offset;
linesize = s->picture.linesize[6 - j];
} else {
data = 0;
linesize = 0;
dummy = 1;
}
} else {
if (j < 4) {
if (s->sys->pix_fmt == PIX_FMT_YUV411P && mb_x < (704 / 8)) {
data = y_ptr + (j * 8);
} else {
data = y_ptr + ((j & 1) * 8) + ((j >> 1) * 8 * s->picture.linesize[0]);
}
linesize = s->picture.linesize[0];
} else {
data = s->picture.data [6 - j] + c_offset;
linesize = s->picture.linesize[6 - j];
if (s->sys->pix_fmt == PIX_FMT_YUV411P && mb_x >= (704 / 8))
do_edge_wrap = 1;
}
}
if (do_edge_wrap) {
uint8_t* d;
DCTELEM *b = block;
for (i = 0; i < 8; i++) {
d = data + 8 * linesize;
b[0] = data[0]; b[1] = data[1]; b[2] = data[2]; b[3] = data[3];
b[4] = d[0]; b[5] = d[1]; b[6] = d[2]; b[7] = d[3];
data += linesize;
b += 8;
}
} else {
if (!dummy)
s->get_pixels(block, data, linesize);
}
if (s->avctx->flags & CODEC_FLAG_INTERLACED_DCT)
enc_blk->dct_mode = dv_guess_dct_mode(block);
else
enc_blk->dct_mode = 0;
enc_blk->area_q[0] = enc_blk->area_q[1] = enc_blk->area_q[2] = enc_blk->area_q[3] = 0;
enc_blk->partial_bit_count = 0;
enc_blk->partial_bit_buffer = 0;
enc_blk->cur_ac = 0;
if (dummy) {
memset(block, 0, sizeof(block));
} else {
s->fdct[enc_blk->dct_mode](block);
}
dv_set_class_number(block, enc_blk,
enc_blk->dct_mode ? ff_zigzag248_direct : ff_zigzag_direct,
enc_blk->dct_mode ? dv_weight_248 : dv_weight_88,
j/4);
init_put_bits(pb, ptr, s->sys->block_sizes[j]/8);
put_bits(pb, 9, (uint16_t)(((enc_blk->mb[0] >> 3) - 1024 + 2) >> 2));
put_bits(pb, 1, enc_blk->dct_mode);
put_bits(pb, 2, enc_blk->cno);
vs_bit_size += enc_blk->bit_size[0] + enc_blk->bit_size[1] +
enc_blk->bit_size[2] + enc_blk->bit_size[3];
++enc_blk;
++pb;
ptr += s->sys->block_sizes[j]/8;
}
}
if (vs_total_ac_bits < vs_bit_size)
dv_guess_qnos(&enc_blks[0], &qnos[0]);
for (i = 0; i < 5; i++) {
dif[i*80 + 3] = qnos[i];
}
for (j = 0; j < 5 * 6; j++)
dv_encode_ac(&enc_blks[j], &pbs[j], &pbs[j+1]);
for (j = 0; j < 5 * 6; j += 6) {
pb = &pbs[j];
for (i = 0; i < 6; i++) {
if (enc_blks[i+j].partial_bit_count)
pb = dv_encode_ac(&enc_blks[i+j], pb, &pbs[j+6]);
}
}
pb = &pbs[0];
for (j = 0; j < 5 * 6; j++) {
if (enc_blks[j].partial_bit_count)
pb = dv_encode_ac(&enc_blks[j], pb, &pbs[6*5]);
if (enc_blks[j].partial_bit_count)
av_log(NULL, AV_LOG_ERROR, "ac bitstream overflow\n");
}
for (j = 0; j < 5 * 6; j++)
flush_put_bits(&pbs[j]);
return 0;
} | ['static int dv_encode_video_segment(AVCodecContext *avctx, DVwork_chunk *work_chunk)\n{\n DVVideoContext *s = avctx->priv_data;\n int mb_index, i, j;\n int mb_x, mb_y, c_offset, linesize;\n uint8_t* y_ptr;\n uint8_t* data;\n uint8_t* ptr;\n uint8_t* dif;\n int do_edge_wrap;\n DECLARE_ALIGNED_16(DCTELEM, block[64]);\n EncBlockInfo enc_blks[5*6];\n PutBitContext pbs[5*6];\n PutBitContext* pb;\n EncBlockInfo* enc_blk;\n int vs_bit_size = 0;\n int qnos[5];\n assert((((int)block) & 15) == 0);\n dif = &s->buf[work_chunk->buf_offset*80];\n enc_blk = &enc_blks[0];\n pb = &pbs[0];\n for (mb_index = 0; mb_index < 5; mb_index++) {\n dv_calculate_mb_xy(s, work_chunk, mb_index, &mb_x, &mb_y);\n y_ptr = s->picture.data[0] + ((mb_y * s->picture.linesize[0] + mb_x) << 3);\n c_offset = (((mb_y >> (s->sys->pix_fmt == PIX_FMT_YUV420P)) * s->picture.linesize[1] +\n (mb_x >> ((s->sys->pix_fmt == PIX_FMT_YUV411P) ? 2 : 1))) << 3);\n do_edge_wrap = 0;\n qnos[mb_index] = 15;\n ptr = dif + mb_index*80 + 4;\n for (j = 0; j < 6; j++) {\n int dummy = 0;\n if (s->sys->pix_fmt == PIX_FMT_YUV422P) {\n if (j == 0 || j == 2) {\n data = y_ptr + ((j >> 1) * 8);\n linesize = s->picture.linesize[0];\n } else if (j > 3) {\n data = s->picture.data[6 - j] + c_offset;\n linesize = s->picture.linesize[6 - j];\n } else {\n data = 0;\n linesize = 0;\n dummy = 1;\n }\n } else {\n if (j < 4) {\n if (s->sys->pix_fmt == PIX_FMT_YUV411P && mb_x < (704 / 8)) {\n data = y_ptr + (j * 8);\n } else {\n data = y_ptr + ((j & 1) * 8) + ((j >> 1) * 8 * s->picture.linesize[0]);\n }\n linesize = s->picture.linesize[0];\n } else {\n data = s->picture.data [6 - j] + c_offset;\n linesize = s->picture.linesize[6 - j];\n if (s->sys->pix_fmt == PIX_FMT_YUV411P && mb_x >= (704 / 8))\n do_edge_wrap = 1;\n }\n }\n if (do_edge_wrap) {\n uint8_t* d;\n DCTELEM *b = block;\n for (i = 0; i < 8; i++) {\n d = data + 8 * linesize;\n b[0] = data[0]; b[1] = data[1]; b[2] = data[2]; b[3] = data[3];\n b[4] = d[0]; b[5] = d[1]; b[6] = d[2]; b[7] = d[3];\n data += linesize;\n b += 8;\n }\n } else {\n if (!dummy)\n s->get_pixels(block, data, linesize);\n }\n if (s->avctx->flags & CODEC_FLAG_INTERLACED_DCT)\n enc_blk->dct_mode = dv_guess_dct_mode(block);\n else\n enc_blk->dct_mode = 0;\n enc_blk->area_q[0] = enc_blk->area_q[1] = enc_blk->area_q[2] = enc_blk->area_q[3] = 0;\n enc_blk->partial_bit_count = 0;\n enc_blk->partial_bit_buffer = 0;\n enc_blk->cur_ac = 0;\n if (dummy) {\n memset(block, 0, sizeof(block));\n } else {\n s->fdct[enc_blk->dct_mode](block);\n }\n dv_set_class_number(block, enc_blk,\n enc_blk->dct_mode ? ff_zigzag248_direct : ff_zigzag_direct,\n enc_blk->dct_mode ? dv_weight_248 : dv_weight_88,\n j/4);\n init_put_bits(pb, ptr, s->sys->block_sizes[j]/8);\n put_bits(pb, 9, (uint16_t)(((enc_blk->mb[0] >> 3) - 1024 + 2) >> 2));\n put_bits(pb, 1, enc_blk->dct_mode);\n put_bits(pb, 2, enc_blk->cno);\n vs_bit_size += enc_blk->bit_size[0] + enc_blk->bit_size[1] +\n enc_blk->bit_size[2] + enc_blk->bit_size[3];\n ++enc_blk;\n ++pb;\n ptr += s->sys->block_sizes[j]/8;\n }\n }\n if (vs_total_ac_bits < vs_bit_size)\n dv_guess_qnos(&enc_blks[0], &qnos[0]);\n for (i = 0; i < 5; i++) {\n dif[i*80 + 3] = qnos[i];\n }\n for (j = 0; j < 5 * 6; j++)\n dv_encode_ac(&enc_blks[j], &pbs[j], &pbs[j+1]);\n for (j = 0; j < 5 * 6; j += 6) {\n pb = &pbs[j];\n for (i = 0; i < 6; i++) {\n if (enc_blks[i+j].partial_bit_count)\n pb = dv_encode_ac(&enc_blks[i+j], pb, &pbs[j+6]);\n }\n }\n pb = &pbs[0];\n for (j = 0; j < 5 * 6; j++) {\n if (enc_blks[j].partial_bit_count)\n pb = dv_encode_ac(&enc_blks[j], pb, &pbs[6*5]);\n if (enc_blks[j].partial_bit_count)\n av_log(NULL, AV_LOG_ERROR, "ac bitstream overflow\\n");\n }\n for (j = 0; j < 5 * 6; j++)\n flush_put_bits(&pbs[j]);\n return 0;\n}'] |
25,928 | 0 | https://github.com/openssl/openssl/blob/c504a5e78386aa9f02462d18a90da759f9131321/crypto/bn/bn_ctx.c/#L353 | static unsigned int BN_STACK_pop(BN_STACK *st)
{
return st->indexes[--(st->depth)];
} | ['DSA_SIG *gost2001_do_sign(const unsigned char *dgst,int dlen, EC_KEY *eckey)\n\t{\n\tDSA_SIG *newsig = NULL;\n\tBIGNUM *md = hashsum2bn(dgst);\n\tBIGNUM *order = NULL;\n\tconst EC_GROUP *group;\n\tconst BIGNUM *priv_key;\n\tBIGNUM *r=NULL,*s=NULL,*X=NULL,*tmp=NULL,*tmp2=NULL, *k=NULL,*e=NULL;\n\tEC_POINT *C=NULL;\n\tBN_CTX *ctx = BN_CTX_new();\n\tBN_CTX_start(ctx);\n\tOPENSSL_assert(dlen==32);\n\tnewsig=DSA_SIG_new();\n\tif (!newsig)\n\t\t{\n\t\tGOSTerr(GOST_F_GOST2001_DO_SIGN,GOST_R_NO_MEMORY);\n\t\tgoto err;\n\t\t}\n\tgroup = EC_KEY_get0_group(eckey);\n\torder=BN_CTX_get(ctx);\n\tEC_GROUP_get_order(group,order,ctx);\n\tpriv_key = EC_KEY_get0_private_key(eckey);\n\te = BN_CTX_get(ctx);\n\tBN_mod(e,md,order,ctx);\n#ifdef DEBUG_SIGN\n\tfprintf(stderr,"digest as bignum=");\n\tBN_print_fp(stderr,md);\n\tfprintf(stderr,"\\ndigest mod q=");\n\tBN_print_fp(stderr,e);\n\tfprintf(stderr,"\\n");\n#endif\n\tif (BN_is_zero(e))\n\t\t{\n\t\tBN_one(e);\n\t\t}\n\tk =BN_CTX_get(ctx);\n\tC=EC_POINT_new(group);\n\tdo\n\t\t{\n\t\tdo\n\t\t\t{\n\t\t\tif (!BN_rand_range(k,order))\n\t\t\t\t{\n\t\t\t\tGOSTerr(GOST_F_GOST2001_DO_SIGN,GOST_R_RANDOM_NUMBER_GENERATOR_FAILED);\n\t\t\t\tDSA_SIG_free(newsig);\n\t\t\t\tgoto err;\n\t\t\t\t}\n\t\t\tif (!EC_POINT_mul(group,C,k,NULL,NULL,ctx))\n\t\t\t\t{\n\t\t\t\tGOSTerr(GOST_F_GOST2001_DO_SIGN,ERR_R_EC_LIB);\n\t\t\t\tDSA_SIG_free(newsig);\n\t\t\t\tgoto err;\n\t\t\t\t}\n\t\t\tif (!X) X=BN_CTX_get(ctx);\n\t\t\tif (!EC_POINT_get_affine_coordinates_GFp(group,C,X,NULL,ctx))\n\t\t\t\t{\n\t\t\t\tGOSTerr(GOST_F_GOST2001_DO_SIGN,ERR_R_EC_LIB);\n\t\t\t\tDSA_SIG_free(newsig);\n\t\t\t\tgoto err;\n\t\t\t\t}\n\t\t\tif (!r) r=BN_CTX_get(ctx);\n\t\t\tBN_nnmod(r,X,order,ctx);\n\t\t\t}\n\t\twhile (BN_is_zero(r));\n\t\tif (!tmp) tmp = BN_CTX_get(ctx);\n\t\tBN_mod_mul(tmp,priv_key,r,order,ctx);\n\t\tif (!tmp2) tmp2 = BN_CTX_get(ctx);\n\t\tBN_mod_mul(tmp2,k,e,order,ctx);\n\t\tif (!s) s=BN_CTX_get(ctx);\n\t\tBN_mod_add(s,tmp,tmp2,order,ctx);\n\t\t}\n\twhile (BN_is_zero(s));\n\tnewsig->s=BN_dup(s);\n\tnewsig->r=BN_dup(r);\n\terr:\n\tBN_CTX_end(ctx);\n\tBN_CTX_free(ctx);\n\tEC_POINT_free(C);\n\tBN_free(md);\n\treturn newsig;\n\t}', 'void BN_CTX_start(BN_CTX *ctx)\n\t{\n\tCTXDBG_ENTRY("BN_CTX_start", ctx);\n\tif(ctx->err_stack || ctx->too_many)\n\t\tctx->err_stack++;\n\telse if(!BN_STACK_push(&ctx->stack, ctx->used))\n\t\t{\n\t\tBNerr(BN_F_BN_CTX_START,BN_R_TOO_MANY_TEMPORARY_VARIABLES);\n\t\tctx->err_stack++;\n\t\t}\n\tCTXDBG_EXIT(ctx);\n\t}', 'int BN_div(BIGNUM *dv, BIGNUM *rm, const BIGNUM *num, const BIGNUM *divisor,\n\t BN_CTX *ctx)\n\t{\n\tint norm_shift,i,loop;\n\tBIGNUM *tmp,wnum,*snum,*sdiv,*res;\n\tBN_ULONG *resp,*wnump;\n\tBN_ULONG d0,d1;\n\tint num_n,div_n;\n\tif ((BN_get_flags(num, BN_FLG_CONSTTIME) != 0) || (BN_get_flags(divisor, BN_FLG_CONSTTIME) != 0))\n\t\t{\n\t\treturn BN_div_no_branch(dv, rm, num, divisor, ctx);\n\t\t}\n\tbn_check_top(dv);\n\tbn_check_top(rm);\n\tbn_check_top(num);\n\tbn_check_top(divisor);\n\tif (BN_is_zero(divisor))\n\t\t{\n\t\tBNerr(BN_F_BN_DIV,BN_R_DIV_BY_ZERO);\n\t\treturn(0);\n\t\t}\n\tif (BN_ucmp(num,divisor) < 0)\n\t\t{\n\t\tif (rm != NULL)\n\t\t\t{ if (BN_copy(rm,num) == NULL) return(0); }\n\t\tif (dv != NULL) BN_zero(dv);\n\t\treturn(1);\n\t\t}\n\tBN_CTX_start(ctx);\n\ttmp=BN_CTX_get(ctx);\n\tsnum=BN_CTX_get(ctx);\n\tsdiv=BN_CTX_get(ctx);\n\tif (dv == NULL)\n\t\tres=BN_CTX_get(ctx);\n\telse\tres=dv;\n\tif (sdiv == NULL || res == NULL) goto err;\n\tnorm_shift=BN_BITS2-((BN_num_bits(divisor))%BN_BITS2);\n\tif (!(BN_lshift(sdiv,divisor,norm_shift))) goto err;\n\tsdiv->neg=0;\n\tnorm_shift+=BN_BITS2;\n\tif (!(BN_lshift(snum,num,norm_shift))) goto err;\n\tsnum->neg=0;\n\tdiv_n=sdiv->top;\n\tnum_n=snum->top;\n\tloop=num_n-div_n;\n\twnum.neg = 0;\n\twnum.d = &(snum->d[loop]);\n\twnum.top = div_n;\n\twnum.dmax = snum->dmax - loop;\n\td0=sdiv->d[div_n-1];\n\td1=(div_n == 1)?0:sdiv->d[div_n-2];\n\twnump= &(snum->d[num_n-1]);\n\tres->neg= (num->neg^divisor->neg);\n\tif (!bn_wexpand(res,(loop+1))) goto err;\n\tres->top=loop;\n\tresp= &(res->d[loop-1]);\n\tif (!bn_wexpand(tmp,(div_n+1))) goto err;\n\tif (BN_ucmp(&wnum,sdiv) >= 0)\n\t\t{\n\t\tbn_clear_top2max(&wnum);\n\t\tbn_sub_words(wnum.d, wnum.d, sdiv->d, div_n);\n\t\t*resp=1;\n\t\t}\n\telse\n\t\tres->top--;\n\tif (res->top == 0)\n\t\tres->neg = 0;\n\telse\n\t\tresp--;\n\tfor (i=0; i<loop-1; i++, wnump--, resp--)\n\t\t{\n\t\tBN_ULONG q,l0;\n#if defined(BN_DIV3W) && !defined(OPENSSL_NO_ASM)\n\t\tBN_ULONG bn_div_3_words(BN_ULONG*,BN_ULONG,BN_ULONG);\n\t\tq=bn_div_3_words(wnump,d1,d0);\n#else\n\t\tBN_ULONG n0,n1,rem=0;\n\t\tn0=wnump[0];\n\t\tn1=wnump[-1];\n\t\tif (n0 == d0)\n\t\t\tq=BN_MASK2;\n\t\telse\n\t\t\t{\n#ifdef BN_LLONG\n\t\t\tBN_ULLONG t2;\n#if defined(BN_LLONG) && defined(BN_DIV2W) && !defined(bn_div_words)\n\t\t\tq=(BN_ULONG)(((((BN_ULLONG)n0)<<BN_BITS2)|n1)/d0);\n#else\n\t\t\tq=bn_div_words(n0,n1,d0);\n#ifdef BN_DEBUG_LEVITTE\n\t\t\tfprintf(stderr,"DEBUG: bn_div_words(0x%08X,0x%08X,0x%08\\\nX) -> 0x%08X\\n",\n\t\t\t\tn0, n1, d0, q);\n#endif\n#endif\n#ifndef REMAINDER_IS_ALREADY_CALCULATED\n\t\t\trem=(n1-q*d0)&BN_MASK2;\n#endif\n\t\t\tt2=(BN_ULLONG)d1*q;\n\t\t\tfor (;;)\n\t\t\t\t{\n\t\t\t\tif (t2 <= ((((BN_ULLONG)rem)<<BN_BITS2)|wnump[-2]))\n\t\t\t\t\tbreak;\n\t\t\t\tq--;\n\t\t\t\trem += d0;\n\t\t\t\tif (rem < d0) break;\n\t\t\t\tt2 -= d1;\n\t\t\t\t}\n#else\n\t\t\tBN_ULONG t2l,t2h,ql,qh;\n\t\t\tq=bn_div_words(n0,n1,d0);\n#ifdef BN_DEBUG_LEVITTE\n\t\t\tfprintf(stderr,"DEBUG: bn_div_words(0x%08X,0x%08X,0x%08\\\nX) -> 0x%08X\\n",\n\t\t\t\tn0, n1, d0, q);\n#endif\n#ifndef REMAINDER_IS_ALREADY_CALCULATED\n\t\t\trem=(n1-q*d0)&BN_MASK2;\n#endif\n#if defined(BN_UMULT_LOHI)\n\t\t\tBN_UMULT_LOHI(t2l,t2h,d1,q);\n#elif defined(BN_UMULT_HIGH)\n\t\t\tt2l = d1 * q;\n\t\t\tt2h = BN_UMULT_HIGH(d1,q);\n#else\n\t\t\tt2l=LBITS(d1); t2h=HBITS(d1);\n\t\t\tql =LBITS(q); qh =HBITS(q);\n\t\t\tmul64(t2l,t2h,ql,qh);\n#endif\n\t\t\tfor (;;)\n\t\t\t\t{\n\t\t\t\tif ((t2h < rem) ||\n\t\t\t\t\t((t2h == rem) && (t2l <= wnump[-2])))\n\t\t\t\t\tbreak;\n\t\t\t\tq--;\n\t\t\t\trem += d0;\n\t\t\t\tif (rem < d0) break;\n\t\t\t\tif (t2l < d1) t2h--; t2l -= d1;\n\t\t\t\t}\n#endif\n\t\t\t}\n#endif\n\t\tl0=bn_mul_words(tmp->d,sdiv->d,div_n,q);\n\t\ttmp->d[div_n]=l0;\n\t\twnum.d--;\n\t\tif (bn_sub_words(wnum.d, wnum.d, tmp->d, div_n+1))\n\t\t\t{\n\t\t\tq--;\n\t\t\tif (bn_add_words(wnum.d, wnum.d, sdiv->d, div_n))\n\t\t\t\t(*wnump)++;\n\t\t\t}\n\t\t*resp = q;\n\t\t}\n\tbn_correct_top(snum);\n\tif (rm != NULL)\n\t\t{\n\t\tint neg = num->neg;\n\t\tBN_rshift(rm,snum,norm_shift);\n\t\tif (!BN_is_zero(rm))\n\t\t\trm->neg = neg;\n\t\tbn_check_top(rm);\n\t\t}\n\tBN_CTX_end(ctx);\n\treturn(1);\nerr:\n\tbn_check_top(rm);\n\tBN_CTX_end(ctx);\n\treturn(0);\n\t}', 'int BN_div_no_branch(BIGNUM *dv, BIGNUM *rm, const BIGNUM *num,\n\tconst BIGNUM *divisor, BN_CTX *ctx)\n\t{\n\tint norm_shift,i,loop;\n\tBIGNUM *tmp,wnum,*snum,*sdiv,*res;\n\tBN_ULONG *resp,*wnump;\n\tBN_ULONG d0,d1;\n\tint num_n,div_n;\n\tbn_check_top(dv);\n\tbn_check_top(rm);\n\tbn_check_top(num);\n\tbn_check_top(divisor);\n\tif (BN_is_zero(divisor))\n\t\t{\n\t\tBNerr(BN_F_BN_DIV_NO_BRANCH,BN_R_DIV_BY_ZERO);\n\t\treturn(0);\n\t\t}\n\tBN_CTX_start(ctx);\n\ttmp=BN_CTX_get(ctx);\n\tsnum=BN_CTX_get(ctx);\n\tsdiv=BN_CTX_get(ctx);\n\tif (dv == NULL)\n\t\tres=BN_CTX_get(ctx);\n\telse\tres=dv;\n\tif (sdiv == NULL || res == NULL) goto err;\n\tnorm_shift=BN_BITS2-((BN_num_bits(divisor))%BN_BITS2);\n\tif (!(BN_lshift(sdiv,divisor,norm_shift))) goto err;\n\tsdiv->neg=0;\n\tnorm_shift+=BN_BITS2;\n\tif (!(BN_lshift(snum,num,norm_shift))) goto err;\n\tsnum->neg=0;\n\tif (snum->top <= sdiv->top+1)\n\t\t{\n\t\tif (bn_wexpand(snum, sdiv->top + 2) == NULL) goto err;\n\t\tfor (i = snum->top; i < sdiv->top + 2; i++) snum->d[i] = 0;\n\t\tsnum->top = sdiv->top + 2;\n\t\t}\n\telse\n\t\t{\n\t\tif (bn_wexpand(snum, snum->top + 1) == NULL) goto err;\n\t\tsnum->d[snum->top] = 0;\n\t\tsnum->top ++;\n\t\t}\n\tdiv_n=sdiv->top;\n\tnum_n=snum->top;\n\tloop=num_n-div_n;\n\twnum.neg = 0;\n\twnum.d = &(snum->d[loop]);\n\twnum.top = div_n;\n\twnum.dmax = snum->dmax - loop;\n\td0=sdiv->d[div_n-1];\n\td1=(div_n == 1)?0:sdiv->d[div_n-2];\n\twnump= &(snum->d[num_n-1]);\n\tres->neg= (num->neg^divisor->neg);\n\tif (!bn_wexpand(res,(loop+1))) goto err;\n\tres->top=loop-1;\n\tresp= &(res->d[loop-1]);\n\tif (!bn_wexpand(tmp,(div_n+1))) goto err;\n\tif (res->top == 0)\n\t\tres->neg = 0;\n\telse\n\t\tresp--;\n\tfor (i=0; i<loop-1; i++, wnump--, resp--)\n\t\t{\n\t\tBN_ULONG q,l0;\n#if defined(BN_DIV3W) && !defined(OPENSSL_NO_ASM)\n\t\tBN_ULONG bn_div_3_words(BN_ULONG*,BN_ULONG,BN_ULONG);\n\t\tq=bn_div_3_words(wnump,d1,d0);\n#else\n\t\tBN_ULONG n0,n1,rem=0;\n\t\tn0=wnump[0];\n\t\tn1=wnump[-1];\n\t\tif (n0 == d0)\n\t\t\tq=BN_MASK2;\n\t\telse\n\t\t\t{\n#ifdef BN_LLONG\n\t\t\tBN_ULLONG t2;\n#if defined(BN_LLONG) && defined(BN_DIV2W) && !defined(bn_div_words)\n\t\t\tq=(BN_ULONG)(((((BN_ULLONG)n0)<<BN_BITS2)|n1)/d0);\n#else\n\t\t\tq=bn_div_words(n0,n1,d0);\n#ifdef BN_DEBUG_LEVITTE\n\t\t\tfprintf(stderr,"DEBUG: bn_div_words(0x%08X,0x%08X,0x%08\\\nX) -> 0x%08X\\n",\n\t\t\t\tn0, n1, d0, q);\n#endif\n#endif\n#ifndef REMAINDER_IS_ALREADY_CALCULATED\n\t\t\trem=(n1-q*d0)&BN_MASK2;\n#endif\n\t\t\tt2=(BN_ULLONG)d1*q;\n\t\t\tfor (;;)\n\t\t\t\t{\n\t\t\t\tif (t2 <= ((((BN_ULLONG)rem)<<BN_BITS2)|wnump[-2]))\n\t\t\t\t\tbreak;\n\t\t\t\tq--;\n\t\t\t\trem += d0;\n\t\t\t\tif (rem < d0) break;\n\t\t\t\tt2 -= d1;\n\t\t\t\t}\n#else\n\t\t\tBN_ULONG t2l,t2h,ql,qh;\n\t\t\tq=bn_div_words(n0,n1,d0);\n#ifdef BN_DEBUG_LEVITTE\n\t\t\tfprintf(stderr,"DEBUG: bn_div_words(0x%08X,0x%08X,0x%08\\\nX) -> 0x%08X\\n",\n\t\t\t\tn0, n1, d0, q);\n#endif\n#ifndef REMAINDER_IS_ALREADY_CALCULATED\n\t\t\trem=(n1-q*d0)&BN_MASK2;\n#endif\n#if defined(BN_UMULT_LOHI)\n\t\t\tBN_UMULT_LOHI(t2l,t2h,d1,q);\n#elif defined(BN_UMULT_HIGH)\n\t\t\tt2l = d1 * q;\n\t\t\tt2h = BN_UMULT_HIGH(d1,q);\n#else\n\t\t\tt2l=LBITS(d1); t2h=HBITS(d1);\n\t\t\tql =LBITS(q); qh =HBITS(q);\n\t\t\tmul64(t2l,t2h,ql,qh);\n#endif\n\t\t\tfor (;;)\n\t\t\t\t{\n\t\t\t\tif ((t2h < rem) ||\n\t\t\t\t\t((t2h == rem) && (t2l <= wnump[-2])))\n\t\t\t\t\tbreak;\n\t\t\t\tq--;\n\t\t\t\trem += d0;\n\t\t\t\tif (rem < d0) break;\n\t\t\t\tif (t2l < d1) t2h--; t2l -= d1;\n\t\t\t\t}\n#endif\n\t\t\t}\n#endif\n\t\tl0=bn_mul_words(tmp->d,sdiv->d,div_n,q);\n\t\ttmp->d[div_n]=l0;\n\t\twnum.d--;\n\t\tif (bn_sub_words(wnum.d, wnum.d, tmp->d, div_n+1))\n\t\t\t{\n\t\t\tq--;\n\t\t\tif (bn_add_words(wnum.d, wnum.d, sdiv->d, div_n))\n\t\t\t\t(*wnump)++;\n\t\t\t}\n\t\t*resp = q;\n\t\t}\n\tbn_correct_top(snum);\n\tif (rm != NULL)\n\t\t{\n\t\tint neg = num->neg;\n\t\tBN_rshift(rm,snum,norm_shift);\n\t\tif (!BN_is_zero(rm))\n\t\t\trm->neg = neg;\n\t\tbn_check_top(rm);\n\t\t}\n\tbn_correct_top(res);\n\tBN_CTX_end(ctx);\n\treturn(1);\nerr:\n\tbn_check_top(rm);\n\tBN_CTX_end(ctx);\n\treturn(0);\n\t}', 'void BN_CTX_end(BN_CTX *ctx)\n\t{\n\tCTXDBG_ENTRY("BN_CTX_end", ctx);\n\tif(ctx->err_stack)\n\t\tctx->err_stack--;\n\telse\n\t\t{\n\t\tunsigned int fp = BN_STACK_pop(&ctx->stack);\n\t\tif(fp < ctx->used)\n\t\t\tBN_POOL_release(&ctx->pool, ctx->used - fp);\n\t\tctx->used = fp;\n\t\tctx->too_many = 0;\n\t\t}\n\tCTXDBG_EXIT(ctx);\n\t}', 'static unsigned int BN_STACK_pop(BN_STACK *st)\n\t{\n\treturn st->indexes[--(st->depth)];\n\t}'] |
25,929 | 0 | https://github.com/libav/libav/blob/ad1161799e096c4bae885f100f27f886755d479a/libavcodec/metasound.c/#L331 | static av_cold int metasound_decode_init(AVCodecContext *avctx)
{
int isampf, ibps;
TwinVQContext *tctx = avctx->priv_data;
uint32_t tag;
const MetasoundProps *props = codec_props;
if (!avctx->extradata || avctx->extradata_size < 16) {
av_log(avctx, AV_LOG_ERROR, "Missing or incomplete extradata\n");
return AVERROR_INVALIDDATA;
}
tag = AV_RL32(avctx->extradata + 12);
for (;;) {
if (!props->tag) {
av_log(avctx, AV_LOG_ERROR, "Could not find tag %08X\n", tag);
return AVERROR_INVALIDDATA;
}
if (props->tag == tag) {
avctx->sample_rate = props->sample_rate;
avctx->channels = props->channels;
avctx->bit_rate = props->bit_rate * 1000;
isampf = avctx->sample_rate / 1000;
break;
}
props++;
}
if (avctx->channels <= 0 || avctx->channels > TWINVQ_CHANNELS_MAX) {
av_log(avctx, AV_LOG_ERROR, "Unsupported number of channels: %i\n",
avctx->channels);
return AVERROR_INVALIDDATA;
}
avctx->channel_layout = avctx->channels == 1 ? AV_CH_LAYOUT_MONO
: AV_CH_LAYOUT_STEREO;
ibps = avctx->bit_rate / (1000 * avctx->channels);
switch ((avctx->channels << 16) + (isampf << 8) + ibps) {
case (1 << 16) + ( 8 << 8) + 8:
tctx->mtab = &ff_metasound_mode0808;
break;
case (2 << 16) + ( 8 << 8) + 8:
tctx->mtab = &ff_metasound_mode0808s;
break;
case (1 << 16) + (11 << 8) + 10:
tctx->mtab = &ff_metasound_mode1110;
break;
case (2 << 16) + (11 << 8) + 10:
tctx->mtab = &ff_metasound_mode1110s;
break;
case (1 << 16) + (16 << 8) + 16:
tctx->mtab = &ff_metasound_mode1616;
break;
case (2 << 16) + (16 << 8) + 16:
tctx->mtab = &ff_metasound_mode1616s;
break;
case (1 << 16) + (22 << 8) + 24:
tctx->mtab = &ff_metasound_mode2224;
break;
case (2 << 16) + (22 << 8) + 24:
tctx->mtab = &ff_metasound_mode2224s;
break;
case (1 << 16) + (44 << 8) + 32:
tctx->mtab = &ff_metasound_mode4432;
break;
case (2 << 16) + (44 << 8) + 32:
tctx->mtab = &ff_metasound_mode4432s;
break;
case (1 << 16) + (44 << 8) + 40:
tctx->mtab = &ff_metasound_mode4440;
break;
case (2 << 16) + (44 << 8) + 40:
tctx->mtab = &ff_metasound_mode4440s;
break;
case (1 << 16) + (44 << 8) + 48:
tctx->mtab = &ff_metasound_mode4448;
break;
case (2 << 16) + (44 << 8) + 48:
tctx->mtab = &ff_metasound_mode4448s;
break;
default:
av_log(avctx, AV_LOG_ERROR,
"This version does not support %d kHz - %d kbit/s/ch mode.\n",
isampf, ibps);
return AVERROR(ENOSYS);
}
tctx->codec = TWINVQ_CODEC_METASOUND;
tctx->read_bitstream = metasound_read_bitstream;
tctx->dec_bark_env = dec_bark_env;
tctx->decode_ppc = decode_ppc;
tctx->frame_size = avctx->bit_rate * tctx->mtab->size
/ avctx->sample_rate;
return ff_twinvq_decode_init(avctx);
} | ['static av_cold int metasound_decode_init(AVCodecContext *avctx)\n{\n int isampf, ibps;\n TwinVQContext *tctx = avctx->priv_data;\n uint32_t tag;\n const MetasoundProps *props = codec_props;\n if (!avctx->extradata || avctx->extradata_size < 16) {\n av_log(avctx, AV_LOG_ERROR, "Missing or incomplete extradata\\n");\n return AVERROR_INVALIDDATA;\n }\n tag = AV_RL32(avctx->extradata + 12);\n for (;;) {\n if (!props->tag) {\n av_log(avctx, AV_LOG_ERROR, "Could not find tag %08X\\n", tag);\n return AVERROR_INVALIDDATA;\n }\n if (props->tag == tag) {\n avctx->sample_rate = props->sample_rate;\n avctx->channels = props->channels;\n avctx->bit_rate = props->bit_rate * 1000;\n isampf = avctx->sample_rate / 1000;\n break;\n }\n props++;\n }\n if (avctx->channels <= 0 || avctx->channels > TWINVQ_CHANNELS_MAX) {\n av_log(avctx, AV_LOG_ERROR, "Unsupported number of channels: %i\\n",\n avctx->channels);\n return AVERROR_INVALIDDATA;\n }\n avctx->channel_layout = avctx->channels == 1 ? AV_CH_LAYOUT_MONO\n : AV_CH_LAYOUT_STEREO;\n ibps = avctx->bit_rate / (1000 * avctx->channels);\n switch ((avctx->channels << 16) + (isampf << 8) + ibps) {\n case (1 << 16) + ( 8 << 8) + 8:\n tctx->mtab = &ff_metasound_mode0808;\n break;\n case (2 << 16) + ( 8 << 8) + 8:\n tctx->mtab = &ff_metasound_mode0808s;\n break;\n case (1 << 16) + (11 << 8) + 10:\n tctx->mtab = &ff_metasound_mode1110;\n break;\n case (2 << 16) + (11 << 8) + 10:\n tctx->mtab = &ff_metasound_mode1110s;\n break;\n case (1 << 16) + (16 << 8) + 16:\n tctx->mtab = &ff_metasound_mode1616;\n break;\n case (2 << 16) + (16 << 8) + 16:\n tctx->mtab = &ff_metasound_mode1616s;\n break;\n case (1 << 16) + (22 << 8) + 24:\n tctx->mtab = &ff_metasound_mode2224;\n break;\n case (2 << 16) + (22 << 8) + 24:\n tctx->mtab = &ff_metasound_mode2224s;\n break;\n case (1 << 16) + (44 << 8) + 32:\n tctx->mtab = &ff_metasound_mode4432;\n break;\n case (2 << 16) + (44 << 8) + 32:\n tctx->mtab = &ff_metasound_mode4432s;\n break;\n case (1 << 16) + (44 << 8) + 40:\n tctx->mtab = &ff_metasound_mode4440;\n break;\n case (2 << 16) + (44 << 8) + 40:\n tctx->mtab = &ff_metasound_mode4440s;\n break;\n case (1 << 16) + (44 << 8) + 48:\n tctx->mtab = &ff_metasound_mode4448;\n break;\n case (2 << 16) + (44 << 8) + 48:\n tctx->mtab = &ff_metasound_mode4448s;\n break;\n default:\n av_log(avctx, AV_LOG_ERROR,\n "This version does not support %d kHz - %d kbit/s/ch mode.\\n",\n isampf, ibps);\n return AVERROR(ENOSYS);\n }\n tctx->codec = TWINVQ_CODEC_METASOUND;\n tctx->read_bitstream = metasound_read_bitstream;\n tctx->dec_bark_env = dec_bark_env;\n tctx->decode_ppc = decode_ppc;\n tctx->frame_size = avctx->bit_rate * tctx->mtab->size\n / avctx->sample_rate;\n return ff_twinvq_decode_init(avctx);\n}'] |
25,930 | 0 | https://github.com/openssl/openssl/blob/ea32151f7b9353f8906188d007c6893704ac17bb/crypto/async/async.c/#L370 | int ASYNC_init_thread(size_t max_size, size_t init_size)
{
async_pool *pool;
size_t curr_size = 0;
if (init_size > max_size) {
ASYNCerr(ASYNC_F_ASYNC_INIT_THREAD, ASYNC_R_INVALID_POOL_SIZE);
return 0;
}
if (!OPENSSL_init_crypto(OPENSSL_INIT_ASYNC, NULL)) {
return 0;
}
if (!ossl_init_thread_start(OPENSSL_INIT_THREAD_ASYNC)) {
return 0;
}
pool = OPENSSL_zalloc(sizeof *pool);
if (pool == NULL) {
ASYNCerr(ASYNC_F_ASYNC_INIT_THREAD, ERR_R_MALLOC_FAILURE);
return 0;
}
pool->jobs = sk_ASYNC_JOB_new_null();
if (pool->jobs == NULL) {
ASYNCerr(ASYNC_F_ASYNC_INIT_THREAD, ERR_R_MALLOC_FAILURE);
OPENSSL_free(pool);
return 0;
}
pool->max_size = max_size;
while (init_size--) {
ASYNC_JOB *job;
job = async_job_new();
if (job == NULL || !async_fibre_makecontext(&job->fibrectx)) {
async_job_free(job);
break;
}
job->funcargs = NULL;
sk_ASYNC_JOB_push(pool->jobs, job);
curr_size++;
}
pool->curr_size = curr_size;
if (!CRYPTO_THREAD_set_local(&poolkey, pool)) {
ASYNCerr(ASYNC_F_ASYNC_INIT_THREAD, ASYNC_R_FAILED_TO_SET_POOL);
goto err;
}
return 1;
err:
async_free_pool_internal(pool);
return 0;
} | ['int ASYNC_init_thread(size_t max_size, size_t init_size)\n{\n async_pool *pool;\n size_t curr_size = 0;\n if (init_size > max_size) {\n ASYNCerr(ASYNC_F_ASYNC_INIT_THREAD, ASYNC_R_INVALID_POOL_SIZE);\n return 0;\n }\n if (!OPENSSL_init_crypto(OPENSSL_INIT_ASYNC, NULL)) {\n return 0;\n }\n if (!ossl_init_thread_start(OPENSSL_INIT_THREAD_ASYNC)) {\n return 0;\n }\n pool = OPENSSL_zalloc(sizeof *pool);\n if (pool == NULL) {\n ASYNCerr(ASYNC_F_ASYNC_INIT_THREAD, ERR_R_MALLOC_FAILURE);\n return 0;\n }\n pool->jobs = sk_ASYNC_JOB_new_null();\n if (pool->jobs == NULL) {\n ASYNCerr(ASYNC_F_ASYNC_INIT_THREAD, ERR_R_MALLOC_FAILURE);\n OPENSSL_free(pool);\n return 0;\n }\n pool->max_size = max_size;\n while (init_size--) {\n ASYNC_JOB *job;\n job = async_job_new();\n if (job == NULL || !async_fibre_makecontext(&job->fibrectx)) {\n async_job_free(job);\n break;\n }\n job->funcargs = NULL;\n sk_ASYNC_JOB_push(pool->jobs, job);\n curr_size++;\n }\n pool->curr_size = curr_size;\n if (!CRYPTO_THREAD_set_local(&poolkey, pool)) {\n ASYNCerr(ASYNC_F_ASYNC_INIT_THREAD, ASYNC_R_FAILED_TO_SET_POOL);\n goto err;\n }\n return 1;\nerr:\n async_free_pool_internal(pool);\n return 0;\n}', 'void *CRYPTO_zalloc(size_t num, const char *file, int line)\n{\n void *ret = CRYPTO_malloc(num, file, line);\n if (ret != NULL)\n memset(ret, 0, num);\n return ret;\n}', 'void *CRYPTO_malloc(size_t num, const char *file, int line)\n{\n void *ret = NULL;\n if (malloc_impl != NULL && malloc_impl != CRYPTO_malloc)\n return malloc_impl(num, file, line);\n if (num <= 0)\n return NULL;\n allow_customize = 0;\n#ifndef OPENSSL_NO_CRYPTO_MDEBUG\n if (call_malloc_debug) {\n CRYPTO_mem_debug_malloc(NULL, num, 0, file, line);\n ret = malloc(num);\n CRYPTO_mem_debug_malloc(ret, num, 1, file, line);\n } else {\n ret = malloc(num);\n }\n#else\n osslargused(file); osslargused(line);\n ret = malloc(num);\n#endif\n return ret;\n}', 'DEFINE_STACK_OF(ASYNC_JOB)', 'OPENSSL_STACK *OPENSSL_sk_new_null(void)\n{\n return OPENSSL_sk_new((OPENSSL_sk_compfunc)NULL);\n}', 'int async_fibre_makecontext(async_fibre *fibre)\n{\n fibre->env_init = 0;\n if (getcontext(&fibre->fibre) == 0) {\n fibre->fibre.uc_stack.ss_sp = OPENSSL_malloc(STACKSIZE);\n if (fibre->fibre.uc_stack.ss_sp != NULL) {\n fibre->fibre.uc_stack.ss_size = STACKSIZE;\n fibre->fibre.uc_link = NULL;\n makecontext(&fibre->fibre, async_start_func, 0);\n return 1;\n }\n } else {\n fibre->fibre.uc_stack.ss_sp = NULL;\n }\n return 0;\n}', 'int CRYPTO_THREAD_set_local(CRYPTO_THREAD_LOCAL *key, void *val)\n{\n if (pthread_setspecific(*key, val) != 0)\n return 0;\n return 1;\n}'] |
25,931 | 0 | https://github.com/openssl/openssl/blob/a3a2ff4cd9ada10effaa514af90c7638ab0e9824/ssl/s3_clnt.c/#L956 | static int ssl3_get_server_certificate(SSL *s)
{
int al,i,ok,ret= -1;
unsigned long n,nc,llen,l;
X509 *x=NULL;
unsigned char *p,*d,*q;
STACK_OF(X509) *sk=NULL;
SESS_CERT *sc;
EVP_PKEY *pkey=NULL;
int need_cert = 1;
n=ssl3_get_message(s,
SSL3_ST_CR_CERT_A,
SSL3_ST_CR_CERT_B,
-1,
s->max_cert_list,
&ok);
if (!ok) return((int)n);
if (s->s3->tmp.message_type == SSL3_MT_SERVER_KEY_EXCHANGE)
{
s->s3->tmp.reuse_message=1;
return(1);
}
if (s->s3->tmp.message_type != SSL3_MT_CERTIFICATE)
{
al=SSL_AD_UNEXPECTED_MESSAGE;
SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,SSL_R_BAD_MESSAGE_TYPE);
goto f_err;
}
d=p=(unsigned char *)s->init_msg;
if ((sk=sk_X509_new_null()) == NULL)
{
SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,ERR_R_MALLOC_FAILURE);
goto err;
}
n2l3(p,llen);
if (llen+3 != n)
{
al=SSL_AD_DECODE_ERROR;
SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,SSL_R_LENGTH_MISMATCH);
goto f_err;
}
for (nc=0; nc<llen; )
{
n2l3(p,l);
if ((l+nc+3) > llen)
{
al=SSL_AD_DECODE_ERROR;
SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,SSL_R_CERT_LENGTH_MISMATCH);
goto f_err;
}
q=p;
x=d2i_X509(NULL,&q,l);
if (x == NULL)
{
al=SSL_AD_BAD_CERTIFICATE;
SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,ERR_R_ASN1_LIB);
goto f_err;
}
if (q != (p+l))
{
al=SSL_AD_DECODE_ERROR;
SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,SSL_R_CERT_LENGTH_MISMATCH);
goto f_err;
}
if (!sk_X509_push(sk,x))
{
SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,ERR_R_MALLOC_FAILURE);
goto err;
}
x=NULL;
nc+=l+3;
p=q;
}
i=ssl_verify_cert_chain(s,sk);
if ((s->verify_mode != SSL_VERIFY_NONE) && (!i)
#ifndef OPENSSL_NO_KRB5
&& (s->s3->tmp.new_cipher->algorithms & (SSL_MKEY_MASK|SSL_AUTH_MASK))
!= (SSL_aKRB5|SSL_kKRB5)
#endif
)
{
al=ssl_verify_alarm_type(s->verify_result);
SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,SSL_R_CERTIFICATE_VERIFY_FAILED);
goto f_err;
}
ERR_clear_error();
sc=ssl_sess_cert_new();
if (sc == NULL) goto err;
if (s->session->sess_cert) ssl_sess_cert_free(s->session->sess_cert);
s->session->sess_cert=sc;
sc->cert_chain=sk;
x=sk_X509_value(sk,0);
sk=NULL;
pkey=X509_get_pubkey(x);
need_cert = ((s->s3->tmp.new_cipher->algorithms
& (SSL_MKEY_MASK|SSL_AUTH_MASK))
== (SSL_aKRB5|SSL_kKRB5))? 0: 1;
#ifdef KSSL_DEBUG
printf("pkey,x = %p, %p\n", pkey,x);
printf("ssl_cert_type(x,pkey) = %d\n", ssl_cert_type(x,pkey));
printf("cipher, alg, nc = %s, %lx, %d\n", s->s3->tmp.new_cipher->name,
s->s3->tmp.new_cipher->algorithms, need_cert);
#endif
if (need_cert && ((pkey == NULL) || EVP_PKEY_missing_parameters(pkey)))
{
x=NULL;
al=SSL3_AL_FATAL;
SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,
SSL_R_UNABLE_TO_FIND_PUBLIC_KEY_PARAMETERS);
goto f_err;
}
i=ssl_cert_type(x,pkey);
if (need_cert && i < 0)
{
x=NULL;
al=SSL3_AL_FATAL;
SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,
SSL_R_UNKNOWN_CERTIFICATE_TYPE);
goto f_err;
}
if (need_cert)
{
sc->peer_cert_type=i;
CRYPTO_add(&x->references,1,CRYPTO_LOCK_X509);
if (sc->peer_pkeys[i].x509 != NULL)
X509_free(sc->peer_pkeys[i].x509);
sc->peer_pkeys[i].x509=x;
sc->peer_key= &(sc->peer_pkeys[i]);
if (s->session->peer != NULL)
X509_free(s->session->peer);
CRYPTO_add(&x->references,1,CRYPTO_LOCK_X509);
s->session->peer=x;
}
else
{
sc->peer_cert_type=i;
sc->peer_key= NULL;
if (s->session->peer != NULL)
X509_free(s->session->peer);
s->session->peer=NULL;
}
s->session->verify_result = s->verify_result;
x=NULL;
ret=1;
if (0)
{
f_err:
ssl3_send_alert(s,SSL3_AL_FATAL,al);
}
err:
EVP_PKEY_free(pkey);
X509_free(x);
sk_X509_pop_free(sk,X509_free);
return(ret);
} | ['static int ssl3_get_server_certificate(SSL *s)\n\t{\n\tint al,i,ok,ret= -1;\n\tunsigned long n,nc,llen,l;\n\tX509 *x=NULL;\n\tunsigned char *p,*d,*q;\n\tSTACK_OF(X509) *sk=NULL;\n\tSESS_CERT *sc;\n\tEVP_PKEY *pkey=NULL;\n\tint need_cert = 1;\n\tn=ssl3_get_message(s,\n\t\tSSL3_ST_CR_CERT_A,\n\t\tSSL3_ST_CR_CERT_B,\n\t\t-1,\n\t\ts->max_cert_list,\n\t\t&ok);\n\tif (!ok) return((int)n);\n\tif (s->s3->tmp.message_type == SSL3_MT_SERVER_KEY_EXCHANGE)\n\t\t{\n\t\ts->s3->tmp.reuse_message=1;\n\t\treturn(1);\n\t\t}\n\tif (s->s3->tmp.message_type != SSL3_MT_CERTIFICATE)\n\t\t{\n\t\tal=SSL_AD_UNEXPECTED_MESSAGE;\n\t\tSSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,SSL_R_BAD_MESSAGE_TYPE);\n\t\tgoto f_err;\n\t\t}\n\td=p=(unsigned char *)s->init_msg;\n\tif ((sk=sk_X509_new_null()) == NULL)\n\t\t{\n\t\tSSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,ERR_R_MALLOC_FAILURE);\n\t\tgoto err;\n\t\t}\n\tn2l3(p,llen);\n\tif (llen+3 != n)\n\t\t{\n\t\tal=SSL_AD_DECODE_ERROR;\n\t\tSSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,SSL_R_LENGTH_MISMATCH);\n\t\tgoto f_err;\n\t\t}\n\tfor (nc=0; nc<llen; )\n\t\t{\n\t\tn2l3(p,l);\n\t\tif ((l+nc+3) > llen)\n\t\t\t{\n\t\t\tal=SSL_AD_DECODE_ERROR;\n\t\t\tSSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,SSL_R_CERT_LENGTH_MISMATCH);\n\t\t\tgoto f_err;\n\t\t\t}\n\t\tq=p;\n\t\tx=d2i_X509(NULL,&q,l);\n\t\tif (x == NULL)\n\t\t\t{\n\t\t\tal=SSL_AD_BAD_CERTIFICATE;\n\t\t\tSSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,ERR_R_ASN1_LIB);\n\t\t\tgoto f_err;\n\t\t\t}\n\t\tif (q != (p+l))\n\t\t\t{\n\t\t\tal=SSL_AD_DECODE_ERROR;\n\t\t\tSSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,SSL_R_CERT_LENGTH_MISMATCH);\n\t\t\tgoto f_err;\n\t\t\t}\n\t\tif (!sk_X509_push(sk,x))\n\t\t\t{\n\t\t\tSSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,ERR_R_MALLOC_FAILURE);\n\t\t\tgoto err;\n\t\t\t}\n\t\tx=NULL;\n\t\tnc+=l+3;\n\t\tp=q;\n\t\t}\n\ti=ssl_verify_cert_chain(s,sk);\n\tif ((s->verify_mode != SSL_VERIFY_NONE) && (!i)\n#ifndef OPENSSL_NO_KRB5\n\t && (s->s3->tmp.new_cipher->algorithms & (SSL_MKEY_MASK|SSL_AUTH_MASK))\n\t != (SSL_aKRB5|SSL_kKRB5)\n#endif\n\t )\n\t\t{\n\t\tal=ssl_verify_alarm_type(s->verify_result);\n\t\tSSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,SSL_R_CERTIFICATE_VERIFY_FAILED);\n\t\tgoto f_err;\n\t\t}\n\tERR_clear_error();\n\tsc=ssl_sess_cert_new();\n\tif (sc == NULL) goto err;\n\tif (s->session->sess_cert) ssl_sess_cert_free(s->session->sess_cert);\n\ts->session->sess_cert=sc;\n\tsc->cert_chain=sk;\n\tx=sk_X509_value(sk,0);\n\tsk=NULL;\n\tpkey=X509_get_pubkey(x);\n\tneed_cert =\t((s->s3->tmp.new_cipher->algorithms\n\t & (SSL_MKEY_MASK|SSL_AUTH_MASK))\n\t == (SSL_aKRB5|SSL_kKRB5))? 0: 1;\n#ifdef KSSL_DEBUG\n\tprintf("pkey,x = %p, %p\\n", pkey,x);\n\tprintf("ssl_cert_type(x,pkey) = %d\\n", ssl_cert_type(x,pkey));\n\tprintf("cipher, alg, nc = %s, %lx, %d\\n", s->s3->tmp.new_cipher->name,\n\t s->s3->tmp.new_cipher->algorithms, need_cert);\n#endif\n\tif (need_cert && ((pkey == NULL) || EVP_PKEY_missing_parameters(pkey)))\n\t\t{\n\t\tx=NULL;\n\t\tal=SSL3_AL_FATAL;\n\t\tSSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,\n\t\t\tSSL_R_UNABLE_TO_FIND_PUBLIC_KEY_PARAMETERS);\n\t\tgoto f_err;\n\t\t}\n\ti=ssl_cert_type(x,pkey);\n\tif (need_cert && i < 0)\n\t\t{\n\t\tx=NULL;\n\t\tal=SSL3_AL_FATAL;\n\t\tSSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,\n\t\t\tSSL_R_UNKNOWN_CERTIFICATE_TYPE);\n\t\tgoto f_err;\n\t\t}\n\tif (need_cert)\n\t\t{\n\t\tsc->peer_cert_type=i;\n\t\tCRYPTO_add(&x->references,1,CRYPTO_LOCK_X509);\n\t\tif (sc->peer_pkeys[i].x509 != NULL)\n\t\t\tX509_free(sc->peer_pkeys[i].x509);\n\t\tsc->peer_pkeys[i].x509=x;\n\t\tsc->peer_key= &(sc->peer_pkeys[i]);\n\t\tif (s->session->peer != NULL)\n\t\t\tX509_free(s->session->peer);\n\t\tCRYPTO_add(&x->references,1,CRYPTO_LOCK_X509);\n\t\ts->session->peer=x;\n\t\t}\n\telse\n\t\t{\n\t\tsc->peer_cert_type=i;\n\t\tsc->peer_key= NULL;\n\t\tif (s->session->peer != NULL)\n\t\t\tX509_free(s->session->peer);\n\t\ts->session->peer=NULL;\n\t\t}\n\ts->session->verify_result = s->verify_result;\n\tx=NULL;\n\tret=1;\n\tif (0)\n\t\t{\nf_err:\n\t\tssl3_send_alert(s,SSL3_AL_FATAL,al);\n\t\t}\nerr:\n\tEVP_PKEY_free(pkey);\n\tX509_free(x);\n\tsk_X509_pop_free(sk,X509_free);\n\treturn(ret);\n\t}', 'STACK *sk_new_null(void)\n\t{\n\treturn sk_new((int (*)(const char * const *, const char * const *))0);\n\t}', 'STACK *sk_new(int (*c)(const char * const *, const char * const *))\n\t{\n\tSTACK *ret;\n\tint i;\n\tif ((ret=(STACK *)OPENSSL_malloc(sizeof(STACK))) == NULL)\n\t\tgoto err;\n\tif ((ret->data=(char **)OPENSSL_malloc(sizeof(char *)*MIN_NODES)) == NULL)\n\t\tgoto err;\n\tfor (i=0; i<MIN_NODES; i++)\n\t\tret->data[i]=NULL;\n\tret->comp=c;\n\tret->num_alloc=MIN_NODES;\n\tret->num=0;\n\tret->sorted=0;\n\treturn(ret);\nerr:\n\tif(ret)\n\t\tOPENSSL_free(ret);\n\treturn(NULL);\n\t}', 'void *CRYPTO_malloc(int num, const char *file, int line)\n\t{\n\tvoid *ret = NULL;\n\textern unsigned char cleanse_ctr;\n\tif (num < 0) return NULL;\n\tallow_customize = 0;\n\tif (malloc_debug_func != NULL)\n\t\t{\n\t\tallow_customize_debug = 0;\n\t\tmalloc_debug_func(NULL, num, file, line, 0);\n\t\t}\n\tret = malloc_ex_func(num,file,line);\n#ifdef LEVITTE_DEBUG_MEM\n\tfprintf(stderr, "LEVITTE_DEBUG_MEM: > 0x%p (%d)\\n", ret, num);\n#endif\n\tif (malloc_debug_func != NULL)\n\t\tmalloc_debug_func(ret, num, file, line, 1);\n if(ret && (num > 2048))\n ((unsigned char *)ret)[0] = cleanse_ctr;\n\treturn ret;\n\t}', 'void ERR_put_error(int lib, int func, int reason, const char *file,\n\t int line)\n\t{\n\tERR_STATE *es;\n#ifdef _OSD_POSIX\n\tif (strncmp(file,"*POSIX(", sizeof("*POSIX(")-1) == 0) {\n\t\tchar *end;\n\t\tfile += sizeof("*POSIX(")-1;\n\t\tend = &file[strlen(file)-1];\n\t\tif (*end == \')\')\n\t\t\t*end = \'\\0\';\n\t\tif ((end = strrchr(file, \'/\')) != NULL)\n\t\t\tfile = &end[1];\n\t}\n#endif\n\tes=ERR_get_state();\n\tes->top=(es->top+1)%ERR_NUM_ERRORS;\n\tif (es->top == es->bottom)\n\t\tes->bottom=(es->bottom+1)%ERR_NUM_ERRORS;\n\tes->err_flags[es->top]=0;\n\tes->err_buffer[es->top]=ERR_PACK(lib,func,reason);\n\tes->err_file[es->top]=file;\n\tes->err_line[es->top]=line;\n\terr_clear_data(es,es->top);\n\t}'] |
25,932 | 0 | https://github.com/libav/libav/blob/6cecd63005b29a1dc3a5104e6ac85fd112705122/libavcodec/pngdec.c/#L203 | static void png_filter_row(DSPContext *dsp, uint8_t *dst, int filter_type,
uint8_t *src, uint8_t *last, int size, int bpp)
{
int i, p, r, g, b, a;
switch(filter_type) {
case PNG_FILTER_VALUE_NONE:
memcpy(dst, src, size);
break;
case PNG_FILTER_VALUE_SUB:
for(i = 0; i < bpp; i++) {
dst[i] = src[i];
}
if(bpp == 4) {
p = *(int*)dst;
for(; i < size; i+=bpp) {
int s = *(int*)(src+i);
p = ((s&0x7f7f7f7f) + (p&0x7f7f7f7f)) ^ ((s^p)&0x80808080);
*(int*)(dst+i) = p;
}
} else {
#define OP_SUB(x,s,l) x+s
UNROLL_FILTER(OP_SUB);
}
break;
case PNG_FILTER_VALUE_UP:
dsp->add_bytes_l2(dst, src, last, size);
break;
case PNG_FILTER_VALUE_AVG:
for(i = 0; i < bpp; i++) {
p = (last[i] >> 1);
dst[i] = p + src[i];
}
#define OP_AVG(x,s,l) (((x + l) >> 1) + s) & 0xff
UNROLL_FILTER(OP_AVG);
break;
case PNG_FILTER_VALUE_PAETH:
for(i = 0; i < bpp; i++) {
p = last[i];
dst[i] = p + src[i];
}
if(bpp > 1 && size > 4) {
int w = bpp==4 ? size : size-3;
dsp->add_png_paeth_prediction(dst+i, src+i, last+i, w-i, bpp);
i = w;
}
ff_add_png_paeth_prediction(dst+i, src+i, last+i, size-i, bpp);
break;
}
} | ['static int decode_frame(AVCodecContext *avctx,\n void *data, int *data_size,\n AVPacket *avpkt)\n{\n const uint8_t *buf = avpkt->data;\n int buf_size = avpkt->size;\n PNGDecContext * const s = avctx->priv_data;\n AVFrame *picture = data;\n AVFrame *p;\n uint32_t tag, length;\n int ret, crc;\n FFSWAP(AVFrame *, s->current_picture, s->last_picture);\n avctx->coded_frame= s->current_picture;\n p = s->current_picture;\n s->bytestream_start=\n s->bytestream= buf;\n s->bytestream_end= buf + buf_size;\n if (memcmp(s->bytestream, ff_pngsig, 8) != 0 &&\n memcmp(s->bytestream, ff_mngsig, 8) != 0)\n return -1;\n s->bytestream+= 8;\n s->y=\n s->state=0;\n s->zstream.zalloc = ff_png_zalloc;\n s->zstream.zfree = ff_png_zfree;\n s->zstream.opaque = NULL;\n ret = inflateInit(&s->zstream);\n if (ret != Z_OK)\n return -1;\n for(;;) {\n int tag32;\n if (s->bytestream >= s->bytestream_end)\n goto fail;\n length = bytestream_get_be32(&s->bytestream);\n if (length > 0x7fffffff)\n goto fail;\n tag32 = bytestream_get_be32(&s->bytestream);\n tag = bswap_32(tag32);\n#ifdef DEBUG\n av_log(avctx, AV_LOG_DEBUG, "png: tag=%c%c%c%c length=%u\\n",\n (tag & 0xff),\n ((tag >> 8) & 0xff),\n ((tag >> 16) & 0xff),\n ((tag >> 24) & 0xff), length);\n#endif\n switch(tag) {\n case MKTAG(\'I\', \'H\', \'D\', \'R\'):\n if (length != 13)\n goto fail;\n s->width = bytestream_get_be32(&s->bytestream);\n s->height = bytestream_get_be32(&s->bytestream);\n if(avcodec_check_dimensions(avctx, s->width, s->height)){\n s->width= s->height= 0;\n goto fail;\n }\n s->bit_depth = *s->bytestream++;\n s->color_type = *s->bytestream++;\n s->compression_type = *s->bytestream++;\n s->filter_type = *s->bytestream++;\n s->interlace_type = *s->bytestream++;\n crc = bytestream_get_be32(&s->bytestream);\n s->state |= PNG_IHDR;\n#ifdef DEBUG\n av_log(avctx, AV_LOG_DEBUG, "width=%d height=%d depth=%d color_type=%d compression_type=%d filter_type=%d interlace_type=%d\\n",\n s->width, s->height, s->bit_depth, s->color_type,\n s->compression_type, s->filter_type, s->interlace_type);\n#endif\n break;\n case MKTAG(\'I\', \'D\', \'A\', \'T\'):\n if (!(s->state & PNG_IHDR))\n goto fail;\n if (!(s->state & PNG_IDAT)) {\n avctx->width = s->width;\n avctx->height = s->height;\n s->channels = ff_png_get_nb_channels(s->color_type);\n s->bits_per_pixel = s->bit_depth * s->channels;\n s->bpp = (s->bits_per_pixel + 7) >> 3;\n s->row_size = (avctx->width * s->bits_per_pixel + 7) >> 3;\n if (s->bit_depth == 8 &&\n s->color_type == PNG_COLOR_TYPE_RGB) {\n avctx->pix_fmt = PIX_FMT_RGB24;\n } else if (s->bit_depth == 8 &&\n s->color_type == PNG_COLOR_TYPE_RGB_ALPHA) {\n avctx->pix_fmt = PIX_FMT_RGB32;\n } else if (s->bit_depth == 8 &&\n s->color_type == PNG_COLOR_TYPE_GRAY) {\n avctx->pix_fmt = PIX_FMT_GRAY8;\n } else if (s->bit_depth == 16 &&\n s->color_type == PNG_COLOR_TYPE_GRAY) {\n avctx->pix_fmt = PIX_FMT_GRAY16BE;\n } else if (s->bit_depth == 1 &&\n s->color_type == PNG_COLOR_TYPE_GRAY) {\n avctx->pix_fmt = PIX_FMT_MONOBLACK;\n } else if (s->color_type == PNG_COLOR_TYPE_PALETTE) {\n avctx->pix_fmt = PIX_FMT_PAL8;\n } else {\n goto fail;\n }\n if(p->data[0])\n avctx->release_buffer(avctx, p);\n p->reference= 0;\n if(avctx->get_buffer(avctx, p) < 0){\n av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\\n");\n goto fail;\n }\n p->pict_type= FF_I_TYPE;\n p->key_frame= 1;\n p->interlaced_frame = !!s->interlace_type;\n if (!s->interlace_type) {\n s->crow_size = s->row_size + 1;\n } else {\n s->pass = 0;\n s->pass_row_size = ff_png_pass_row_size(s->pass,\n s->bits_per_pixel,\n s->width);\n s->crow_size = s->pass_row_size + 1;\n }\n#ifdef DEBUG\n av_log(avctx, AV_LOG_DEBUG, "row_size=%d crow_size =%d\\n",\n s->row_size, s->crow_size);\n#endif\n s->image_buf = p->data[0];\n s->image_linesize = p->linesize[0];\n if (s->color_type == PNG_COLOR_TYPE_PALETTE)\n memcpy(p->data[1], s->palette, 256 * sizeof(uint32_t));\n s->last_row = av_mallocz(s->row_size);\n if (!s->last_row)\n goto fail;\n if (s->interlace_type ||\n s->color_type == PNG_COLOR_TYPE_RGB_ALPHA) {\n s->tmp_row = av_malloc(s->row_size);\n if (!s->tmp_row)\n goto fail;\n }\n s->crow_buf = av_malloc(s->row_size + 1);\n if (!s->crow_buf)\n goto fail;\n s->zstream.avail_out = s->crow_size;\n s->zstream.next_out = s->crow_buf;\n }\n s->state |= PNG_IDAT;\n if (png_decode_idat(s, length) < 0)\n goto fail;\n crc = bytestream_get_be32(&s->bytestream);\n break;\n case MKTAG(\'P\', \'L\', \'T\', \'E\'):\n {\n int n, i, r, g, b;\n if ((length % 3) != 0 || length > 256 * 3)\n goto skip_tag;\n n = length / 3;\n for(i=0;i<n;i++) {\n r = *s->bytestream++;\n g = *s->bytestream++;\n b = *s->bytestream++;\n s->palette[i] = (0xff << 24) | (r << 16) | (g << 8) | b;\n }\n for(;i<256;i++) {\n s->palette[i] = (0xff << 24);\n }\n s->state |= PNG_PLTE;\n crc = bytestream_get_be32(&s->bytestream);\n }\n break;\n case MKTAG(\'t\', \'R\', \'N\', \'S\'):\n {\n int v, i;\n if (s->color_type != PNG_COLOR_TYPE_PALETTE ||\n length > 256 ||\n !(s->state & PNG_PLTE))\n goto skip_tag;\n for(i=0;i<length;i++) {\n v = *s->bytestream++;\n s->palette[i] = (s->palette[i] & 0x00ffffff) | (v << 24);\n }\n crc = bytestream_get_be32(&s->bytestream);\n }\n break;\n case MKTAG(\'I\', \'E\', \'N\', \'D\'):\n if (!(s->state & PNG_ALLIMAGE))\n goto fail;\n crc = bytestream_get_be32(&s->bytestream);\n goto exit_loop;\n default:\n skip_tag:\n s->bytestream += length + 4;\n break;\n }\n }\n exit_loop:\n if(s->last_picture->data[0] != NULL) {\n if(!(avpkt->flags & PKT_FLAG_KEY)) {\n int i, j;\n uint8_t *pd = s->current_picture->data[0];\n uint8_t *pd_last = s->last_picture->data[0];\n for(j=0; j < s->height; j++) {\n for(i=0; i < s->width * s->bpp; i++) {\n pd[i] += pd_last[i];\n }\n pd += s->image_linesize;\n pd_last += s->image_linesize;\n }\n }\n }\n *picture= *s->current_picture;\n *data_size = sizeof(AVFrame);\n ret = s->bytestream - s->bytestream_start;\n the_end:\n inflateEnd(&s->zstream);\n av_freep(&s->crow_buf);\n av_freep(&s->last_row);\n av_freep(&s->tmp_row);\n return ret;\n fail:\n ret = -1;\n goto the_end;\n}', 'static int png_decode_idat(PNGDecContext *s, int length)\n{\n int ret;\n s->zstream.avail_in = length;\n s->zstream.next_in = s->bytestream;\n s->bytestream += length;\n if(s->bytestream > s->bytestream_end)\n return -1;\n while (s->zstream.avail_in > 0) {\n ret = inflate(&s->zstream, Z_PARTIAL_FLUSH);\n if (ret != Z_OK && ret != Z_STREAM_END) {\n return -1;\n }\n if (s->zstream.avail_out == 0) {\n if (!(s->state & PNG_ALLIMAGE)) {\n png_handle_row(s);\n }\n s->zstream.avail_out = s->crow_size;\n s->zstream.next_out = s->crow_buf;\n }\n }\n return 0;\n}', 'static void png_handle_row(PNGDecContext *s)\n{\n uint8_t *ptr, *last_row;\n int got_line;\n if (!s->interlace_type) {\n ptr = s->image_buf + s->image_linesize * s->y;\n if (s->color_type == PNG_COLOR_TYPE_RGB_ALPHA) {\n png_filter_row(&s->dsp, s->tmp_row, s->crow_buf[0], s->crow_buf + 1,\n s->last_row, s->row_size, s->bpp);\n convert_to_rgb32(ptr, s->tmp_row, s->width, s->filter_type == PNG_FILTER_TYPE_LOCO);\n FFSWAP(uint8_t*, s->last_row, s->tmp_row);\n } else {\n if (s->y == 0)\n last_row = s->last_row;\n else\n last_row = ptr - s->image_linesize;\n png_filter_row(&s->dsp, ptr, s->crow_buf[0], s->crow_buf + 1,\n last_row, s->row_size, s->bpp);\n }\n if (s->filter_type == PNG_FILTER_TYPE_LOCO &&\n s->color_type == PNG_COLOR_TYPE_RGB && s->y > 0)\n deloco_rgb24(ptr - s->image_linesize, s->row_size);\n s->y++;\n if (s->y == s->height) {\n s->state |= PNG_ALLIMAGE;\n if (s->filter_type == PNG_FILTER_TYPE_LOCO &&\n s->color_type == PNG_COLOR_TYPE_RGB)\n deloco_rgb24(ptr, s->row_size);\n }\n } else {\n got_line = 0;\n for(;;) {\n ptr = s->image_buf + s->image_linesize * s->y;\n if ((ff_png_pass_ymask[s->pass] << (s->y & 7)) & 0x80) {\n if (got_line)\n break;\n png_filter_row(&s->dsp, s->tmp_row, s->crow_buf[0], s->crow_buf + 1,\n s->last_row, s->pass_row_size, s->bpp);\n FFSWAP(uint8_t*, s->last_row, s->tmp_row);\n got_line = 1;\n }\n if ((png_pass_dsp_ymask[s->pass] << (s->y & 7)) & 0x80) {\n png_put_interlaced_row(ptr, s->width, s->bits_per_pixel, s->pass,\n s->color_type, s->last_row);\n }\n s->y++;\n if (s->y == s->height) {\n for(;;) {\n if (s->pass == NB_PASSES - 1) {\n s->state |= PNG_ALLIMAGE;\n goto the_end;\n } else {\n s->pass++;\n s->y = 0;\n s->pass_row_size = ff_png_pass_row_size(s->pass,\n s->bits_per_pixel,\n s->width);\n s->crow_size = s->pass_row_size + 1;\n if (s->pass_row_size != 0)\n break;\n }\n }\n }\n }\n the_end: ;\n }\n}', 'static void png_filter_row(DSPContext *dsp, uint8_t *dst, int filter_type,\n uint8_t *src, uint8_t *last, int size, int bpp)\n{\n int i, p, r, g, b, a;\n switch(filter_type) {\n case PNG_FILTER_VALUE_NONE:\n memcpy(dst, src, size);\n break;\n case PNG_FILTER_VALUE_SUB:\n for(i = 0; i < bpp; i++) {\n dst[i] = src[i];\n }\n if(bpp == 4) {\n p = *(int*)dst;\n for(; i < size; i+=bpp) {\n int s = *(int*)(src+i);\n p = ((s&0x7f7f7f7f) + (p&0x7f7f7f7f)) ^ ((s^p)&0x80808080);\n *(int*)(dst+i) = p;\n }\n } else {\n#define OP_SUB(x,s,l) x+s\n UNROLL_FILTER(OP_SUB);\n }\n break;\n case PNG_FILTER_VALUE_UP:\n dsp->add_bytes_l2(dst, src, last, size);\n break;\n case PNG_FILTER_VALUE_AVG:\n for(i = 0; i < bpp; i++) {\n p = (last[i] >> 1);\n dst[i] = p + src[i];\n }\n#define OP_AVG(x,s,l) (((x + l) >> 1) + s) & 0xff\n UNROLL_FILTER(OP_AVG);\n break;\n case PNG_FILTER_VALUE_PAETH:\n for(i = 0; i < bpp; i++) {\n p = last[i];\n dst[i] = p + src[i];\n }\n if(bpp > 1 && size > 4) {\n int w = bpp==4 ? size : size-3;\n dsp->add_png_paeth_prediction(dst+i, src+i, last+i, w-i, bpp);\n i = w;\n }\n ff_add_png_paeth_prediction(dst+i, src+i, last+i, size-i, bpp);\n break;\n }\n}'] |
25,933 | 0 | https://github.com/libav/libav/blob/b12b16c5d35adaba0979a7c2fa76b88e48f5f839/libavcodec/mpegaudiodec.c/#L1196 | static void exponents_from_scale_factors(MPADecodeContext *s,
GranuleDef *g,
int16_t *exponents)
{
const uint8_t *bstab, *pretab;
int len, i, j, k, l, v0, shift, gain, gains[3];
int16_t *exp_ptr;
exp_ptr = exponents;
gain = g->global_gain - 210;
shift = g->scalefac_scale + 1;
bstab = band_size_long[s->sample_rate_index];
pretab = mpa_pretab[g->preflag];
for(i=0;i<g->long_end;i++) {
v0 = gain - ((g->scale_factors[i] + pretab[i]) << shift) + 400;
len = bstab[i];
for(j=len;j>0;j--)
*exp_ptr++ = v0;
}
if (g->short_start < 13) {
bstab = band_size_short[s->sample_rate_index];
gains[0] = gain - (g->subblock_gain[0] << 3);
gains[1] = gain - (g->subblock_gain[1] << 3);
gains[2] = gain - (g->subblock_gain[2] << 3);
k = g->long_end;
for(i=g->short_start;i<13;i++) {
len = bstab[i];
for(l=0;l<3;l++) {
v0 = gains[l] - (g->scale_factors[k++] << shift) + 400;
for(j=len;j>0;j--)
*exp_ptr++ = v0;
}
}
}
} | ['static int decode_frame_mp3on4(AVCodecContext * avctx,\n void *data, int *data_size,\n AVPacket *avpkt)\n{\n const uint8_t *buf = avpkt->data;\n int buf_size = avpkt->size;\n MP3On4DecodeContext *s = avctx->priv_data;\n MPADecodeContext *m;\n int fsize, len = buf_size, out_size = 0;\n uint32_t header;\n OUT_INT *out_samples = data;\n OUT_INT decoded_buf[MPA_FRAME_SIZE * MPA_MAX_CHANNELS];\n OUT_INT *outptr, *bp;\n int fr, j, n;\n if(*data_size < MPA_FRAME_SIZE * MPA_MAX_CHANNELS * s->frames * sizeof(OUT_INT))\n return -1;\n *data_size = 0;\n if (buf_size < HEADER_SIZE)\n return -1;\n outptr = s->frames == 1 ? out_samples : decoded_buf;\n avctx->bit_rate = 0;\n for (fr = 0; fr < s->frames; fr++) {\n fsize = AV_RB16(buf) >> 4;\n fsize = FFMIN3(fsize, len, MPA_MAX_CODED_FRAME_SIZE);\n m = s->mp3decctx[fr];\n assert (m != NULL);\n header = (AV_RB32(buf) & 0x000fffff) | s->syncword;\n if (ff_mpa_check_header(header) < 0)\n break;\n ff_mpegaudio_decode_header((MPADecodeHeader *)m, header);\n out_size += mp_decode_frame(m, outptr, buf, fsize);\n buf += fsize;\n len -= fsize;\n if(s->frames > 1) {\n n = m->avctx->frame_size*m->nb_channels;\n bp = out_samples + s->coff[fr];\n if(m->nb_channels == 1) {\n for(j = 0; j < n; j++) {\n *bp = decoded_buf[j];\n bp += avctx->channels;\n }\n } else {\n for(j = 0; j < n; j++) {\n bp[0] = decoded_buf[j++];\n bp[1] = decoded_buf[j];\n bp += avctx->channels;\n }\n }\n }\n avctx->bit_rate += m->bit_rate;\n }\n avctx->sample_rate = s->mp3decctx[0]->sample_rate;\n *data_size = out_size;\n return buf_size;\n}', 'static av_always_inline av_const uint32_t av_bswap32(uint32_t x)\n{\n x= ((x<<8)&0xFF00FF00) | ((x>>8)&0x00FF00FF);\n x= (x>>16) | (x<<16);\n return x;\n}', 'int ff_mpegaudio_decode_header(MPADecodeHeader *s, uint32_t header)\n{\n int sample_rate, frame_size, mpeg25, padding;\n int sample_rate_index, bitrate_index;\n if (header & (1<<20)) {\n s->lsf = (header & (1<<19)) ? 0 : 1;\n mpeg25 = 0;\n } else {\n s->lsf = 1;\n mpeg25 = 1;\n }\n s->layer = 4 - ((header >> 17) & 3);\n sample_rate_index = (header >> 10) & 3;\n sample_rate = ff_mpa_freq_tab[sample_rate_index] >> (s->lsf + mpeg25);\n sample_rate_index += 3 * (s->lsf + mpeg25);\n s->sample_rate_index = sample_rate_index;\n s->error_protection = ((header >> 16) & 1) ^ 1;\n s->sample_rate = sample_rate;\n bitrate_index = (header >> 12) & 0xf;\n padding = (header >> 9) & 1;\n s->mode = (header >> 6) & 3;\n s->mode_ext = (header >> 4) & 3;\n if (s->mode == MPA_MONO)\n s->nb_channels = 1;\n else\n s->nb_channels = 2;\n if (bitrate_index != 0) {\n frame_size = ff_mpa_bitrate_tab[s->lsf][s->layer - 1][bitrate_index];\n s->bit_rate = frame_size * 1000;\n switch(s->layer) {\n case 1:\n frame_size = (frame_size * 12000) / sample_rate;\n frame_size = (frame_size + padding) * 4;\n break;\n case 2:\n frame_size = (frame_size * 144000) / sample_rate;\n frame_size += padding;\n break;\n default:\n case 3:\n frame_size = (frame_size * 144000) / (sample_rate << s->lsf);\n frame_size += padding;\n break;\n }\n s->frame_size = frame_size;\n } else {\n return 1;\n }\n#if defined(DEBUG)\n dprintf(NULL, "layer%d, %d Hz, %d kbits/s, ",\n s->layer, s->sample_rate, s->bit_rate);\n if (s->nb_channels == 2) {\n if (s->layer == 3) {\n if (s->mode_ext & MODE_EXT_MS_STEREO)\n dprintf(NULL, "ms-");\n if (s->mode_ext & MODE_EXT_I_STEREO)\n dprintf(NULL, "i-");\n }\n dprintf(NULL, "stereo");\n } else {\n dprintf(NULL, "mono");\n }\n dprintf(NULL, "\\n");\n#endif\n return 0;\n}', 'static int mp_decode_frame(MPADecodeContext *s,\n OUT_INT *samples, const uint8_t *buf, int buf_size)\n{\n int i, nb_frames, ch;\n OUT_INT *samples_ptr;\n init_get_bits(&s->gb, buf + HEADER_SIZE, (buf_size - HEADER_SIZE)*8);\n if (s->error_protection)\n skip_bits(&s->gb, 16);\n dprintf(s->avctx, "frame %d:\\n", s->frame_count);\n switch(s->layer) {\n case 1:\n s->avctx->frame_size = 384;\n nb_frames = mp_decode_layer1(s);\n break;\n case 2:\n s->avctx->frame_size = 1152;\n nb_frames = mp_decode_layer2(s);\n break;\n case 3:\n s->avctx->frame_size = s->lsf ? 576 : 1152;\n default:\n nb_frames = mp_decode_layer3(s);\n s->last_buf_size=0;\n if(s->in_gb.buffer){\n align_get_bits(&s->gb);\n i= get_bits_left(&s->gb)>>3;\n if(i >= 0 && i <= BACKSTEP_SIZE){\n memmove(s->last_buf, s->gb.buffer + (get_bits_count(&s->gb)>>3), i);\n s->last_buf_size=i;\n }else\n av_log(s->avctx, AV_LOG_ERROR, "invalid old backstep %d\\n", i);\n s->gb= s->in_gb;\n s->in_gb.buffer= NULL;\n }\n align_get_bits(&s->gb);\n assert((get_bits_count(&s->gb) & 7) == 0);\n i= get_bits_left(&s->gb)>>3;\n if(i<0 || i > BACKSTEP_SIZE || nb_frames<0){\n if(i<0)\n av_log(s->avctx, AV_LOG_ERROR, "invalid new backstep %d\\n", i);\n i= FFMIN(BACKSTEP_SIZE, buf_size - HEADER_SIZE);\n }\n assert(i <= buf_size - HEADER_SIZE && i>= 0);\n memcpy(s->last_buf + s->last_buf_size, s->gb.buffer + buf_size - HEADER_SIZE - i, i);\n s->last_buf_size += i;\n break;\n }\n for(ch=0;ch<s->nb_channels;ch++) {\n samples_ptr = samples + ch;\n for(i=0;i<nb_frames;i++) {\n RENAME(ff_mpa_synth_filter)(\n#if CONFIG_FLOAT\n s,\n#endif\n s->synth_buf[ch], &(s->synth_buf_offset[ch]),\n RENAME(ff_mpa_synth_window), &s->dither_state,\n samples_ptr, s->nb_channels,\n s->sb_samples[ch][i]);\n samples_ptr += 32 * s->nb_channels;\n }\n }\n return nb_frames * 32 * sizeof(OUT_INT) * s->nb_channels;\n}', 'static int mp_decode_layer3(MPADecodeContext *s)\n{\n int nb_granules, main_data_begin, private_bits;\n int gr, ch, blocksplit_flag, i, j, k, n, bits_pos;\n GranuleDef *g;\n int16_t exponents[576];\n if (s->lsf) {\n main_data_begin = get_bits(&s->gb, 8);\n private_bits = get_bits(&s->gb, s->nb_channels);\n nb_granules = 1;\n } else {\n main_data_begin = get_bits(&s->gb, 9);\n if (s->nb_channels == 2)\n private_bits = get_bits(&s->gb, 3);\n else\n private_bits = get_bits(&s->gb, 5);\n nb_granules = 2;\n for(ch=0;ch<s->nb_channels;ch++) {\n s->granules[ch][0].scfsi = 0;\n s->granules[ch][1].scfsi = get_bits(&s->gb, 4);\n }\n }\n for(gr=0;gr<nb_granules;gr++) {\n for(ch=0;ch<s->nb_channels;ch++) {\n dprintf(s->avctx, "gr=%d ch=%d: side_info\\n", gr, ch);\n g = &s->granules[ch][gr];\n g->part2_3_length = get_bits(&s->gb, 12);\n g->big_values = get_bits(&s->gb, 9);\n if(g->big_values > 288){\n av_log(s->avctx, AV_LOG_ERROR, "big_values too big\\n");\n return -1;\n }\n g->global_gain = get_bits(&s->gb, 8);\n if ((s->mode_ext & (MODE_EXT_MS_STEREO | MODE_EXT_I_STEREO)) ==\n MODE_EXT_MS_STEREO)\n g->global_gain -= 2;\n if (s->lsf)\n g->scalefac_compress = get_bits(&s->gb, 9);\n else\n g->scalefac_compress = get_bits(&s->gb, 4);\n blocksplit_flag = get_bits1(&s->gb);\n if (blocksplit_flag) {\n g->block_type = get_bits(&s->gb, 2);\n if (g->block_type == 0){\n av_log(s->avctx, AV_LOG_ERROR, "invalid block type\\n");\n return -1;\n }\n g->switch_point = get_bits1(&s->gb);\n for(i=0;i<2;i++)\n g->table_select[i] = get_bits(&s->gb, 5);\n for(i=0;i<3;i++)\n g->subblock_gain[i] = get_bits(&s->gb, 3);\n ff_init_short_region(s, g);\n } else {\n int region_address1, region_address2;\n g->block_type = 0;\n g->switch_point = 0;\n for(i=0;i<3;i++)\n g->table_select[i] = get_bits(&s->gb, 5);\n region_address1 = get_bits(&s->gb, 4);\n region_address2 = get_bits(&s->gb, 3);\n dprintf(s->avctx, "region1=%d region2=%d\\n",\n region_address1, region_address2);\n ff_init_long_region(s, g, region_address1, region_address2);\n }\n ff_region_offset2size(g);\n ff_compute_band_indexes(s, g);\n g->preflag = 0;\n if (!s->lsf)\n g->preflag = get_bits1(&s->gb);\n g->scalefac_scale = get_bits1(&s->gb);\n g->count1table_select = get_bits1(&s->gb);\n dprintf(s->avctx, "block_type=%d switch_point=%d\\n",\n g->block_type, g->switch_point);\n }\n }\n if (!s->adu_mode) {\n const uint8_t *ptr = s->gb.buffer + (get_bits_count(&s->gb)>>3);\n assert((get_bits_count(&s->gb) & 7) == 0);\n dprintf(s->avctx, "seekback: %d\\n", main_data_begin);\n memcpy(s->last_buf + s->last_buf_size, ptr, EXTRABYTES);\n s->in_gb= s->gb;\n init_get_bits(&s->gb, s->last_buf, s->last_buf_size*8);\n skip_bits_long(&s->gb, 8*(s->last_buf_size - main_data_begin));\n }\n for(gr=0;gr<nb_granules;gr++) {\n for(ch=0;ch<s->nb_channels;ch++) {\n g = &s->granules[ch][gr];\n if(get_bits_count(&s->gb)<0){\n av_log(s->avctx, AV_LOG_DEBUG, "mdb:%d, lastbuf:%d skipping granule %d\\n",\n main_data_begin, s->last_buf_size, gr);\n skip_bits_long(&s->gb, g->part2_3_length);\n memset(g->sb_hybrid, 0, sizeof(g->sb_hybrid));\n if(get_bits_count(&s->gb) >= s->gb.size_in_bits && s->in_gb.buffer){\n skip_bits_long(&s->in_gb, get_bits_count(&s->gb) - s->gb.size_in_bits);\n s->gb= s->in_gb;\n s->in_gb.buffer=NULL;\n }\n continue;\n }\n bits_pos = get_bits_count(&s->gb);\n if (!s->lsf) {\n uint8_t *sc;\n int slen, slen1, slen2;\n slen1 = slen_table[0][g->scalefac_compress];\n slen2 = slen_table[1][g->scalefac_compress];\n dprintf(s->avctx, "slen1=%d slen2=%d\\n", slen1, slen2);\n if (g->block_type == 2) {\n n = g->switch_point ? 17 : 18;\n j = 0;\n if(slen1){\n for(i=0;i<n;i++)\n g->scale_factors[j++] = get_bits(&s->gb, slen1);\n }else{\n for(i=0;i<n;i++)\n g->scale_factors[j++] = 0;\n }\n if(slen2){\n for(i=0;i<18;i++)\n g->scale_factors[j++] = get_bits(&s->gb, slen2);\n for(i=0;i<3;i++)\n g->scale_factors[j++] = 0;\n }else{\n for(i=0;i<21;i++)\n g->scale_factors[j++] = 0;\n }\n } else {\n sc = s->granules[ch][0].scale_factors;\n j = 0;\n for(k=0;k<4;k++) {\n n = (k == 0 ? 6 : 5);\n if ((g->scfsi & (0x8 >> k)) == 0) {\n slen = (k < 2) ? slen1 : slen2;\n if(slen){\n for(i=0;i<n;i++)\n g->scale_factors[j++] = get_bits(&s->gb, slen);\n }else{\n for(i=0;i<n;i++)\n g->scale_factors[j++] = 0;\n }\n } else {\n for(i=0;i<n;i++) {\n g->scale_factors[j] = sc[j];\n j++;\n }\n }\n }\n g->scale_factors[j++] = 0;\n }\n } else {\n int tindex, tindex2, slen[4], sl, sf;\n if (g->block_type == 2) {\n tindex = g->switch_point ? 2 : 1;\n } else {\n tindex = 0;\n }\n sf = g->scalefac_compress;\n if ((s->mode_ext & MODE_EXT_I_STEREO) && ch == 1) {\n sf >>= 1;\n if (sf < 180) {\n lsf_sf_expand(slen, sf, 6, 6, 0);\n tindex2 = 3;\n } else if (sf < 244) {\n lsf_sf_expand(slen, sf - 180, 4, 4, 0);\n tindex2 = 4;\n } else {\n lsf_sf_expand(slen, sf - 244, 3, 0, 0);\n tindex2 = 5;\n }\n } else {\n if (sf < 400) {\n lsf_sf_expand(slen, sf, 5, 4, 4);\n tindex2 = 0;\n } else if (sf < 500) {\n lsf_sf_expand(slen, sf - 400, 5, 4, 0);\n tindex2 = 1;\n } else {\n lsf_sf_expand(slen, sf - 500, 3, 0, 0);\n tindex2 = 2;\n g->preflag = 1;\n }\n }\n j = 0;\n for(k=0;k<4;k++) {\n n = lsf_nsf_table[tindex2][tindex][k];\n sl = slen[k];\n if(sl){\n for(i=0;i<n;i++)\n g->scale_factors[j++] = get_bits(&s->gb, sl);\n }else{\n for(i=0;i<n;i++)\n g->scale_factors[j++] = 0;\n }\n }\n for(;j<40;j++)\n g->scale_factors[j] = 0;\n }\n exponents_from_scale_factors(s, g, exponents);\n huffman_decode(s, g, exponents, bits_pos + g->part2_3_length);\n }\n if (s->nb_channels == 2)\n compute_stereo(s, &s->granules[0][gr], &s->granules[1][gr]);\n for(ch=0;ch<s->nb_channels;ch++) {\n g = &s->granules[ch][gr];\n reorder_block(s, g);\n compute_antialias(s, g);\n compute_imdct(s, g, &s->sb_samples[ch][18 * gr][0], s->mdct_buf[ch]);\n }\n }\n if(get_bits_count(&s->gb)<0)\n skip_bits_long(&s->gb, -get_bits_count(&s->gb));\n return nb_granules * 18;\n}', 'static void exponents_from_scale_factors(MPADecodeContext *s,\n GranuleDef *g,\n int16_t *exponents)\n{\n const uint8_t *bstab, *pretab;\n int len, i, j, k, l, v0, shift, gain, gains[3];\n int16_t *exp_ptr;\n exp_ptr = exponents;\n gain = g->global_gain - 210;\n shift = g->scalefac_scale + 1;\n bstab = band_size_long[s->sample_rate_index];\n pretab = mpa_pretab[g->preflag];\n for(i=0;i<g->long_end;i++) {\n v0 = gain - ((g->scale_factors[i] + pretab[i]) << shift) + 400;\n len = bstab[i];\n for(j=len;j>0;j--)\n *exp_ptr++ = v0;\n }\n if (g->short_start < 13) {\n bstab = band_size_short[s->sample_rate_index];\n gains[0] = gain - (g->subblock_gain[0] << 3);\n gains[1] = gain - (g->subblock_gain[1] << 3);\n gains[2] = gain - (g->subblock_gain[2] << 3);\n k = g->long_end;\n for(i=g->short_start;i<13;i++) {\n len = bstab[i];\n for(l=0;l<3;l++) {\n v0 = gains[l] - (g->scale_factors[k++] << shift) + 400;\n for(j=len;j>0;j--)\n *exp_ptr++ = v0;\n }\n }\n }\n}'] |
25,934 | 0 | https://github.com/libav/libav/blob/79f5347a983342e2711ca8ba19ec3d8d151183f0/libavformat/utils.c/#L2491 | void avformat_free_context(AVFormatContext *s)
{
int i;
if (!s)
return;
av_opt_free(s);
if (s->iformat && s->iformat->priv_class && s->priv_data)
av_opt_free(s->priv_data);
for (i = 0; i < s->nb_streams; i++)
free_stream(&s->streams[i]);
for (i = s->nb_programs - 1; i >= 0; i--) {
av_dict_free(&s->programs[i]->metadata);
av_freep(&s->programs[i]->stream_index);
av_freep(&s->programs[i]);
}
av_freep(&s->programs);
av_freep(&s->priv_data);
while (s->nb_chapters--) {
av_dict_free(&s->chapters[s->nb_chapters]->metadata);
av_free(s->chapters[s->nb_chapters]);
}
av_freep(&s->chapters);
av_dict_free(&s->metadata);
av_freep(&s->streams);
av_freep(&s->internal);
av_free(s);
} | ['void ff_rtsp_close_streams(AVFormatContext *s)\n{\n RTSPState *rt = s->priv_data;\n int i, j;\n RTSPStream *rtsp_st;\n ff_rtsp_undo_setup(s, 0);\n for (i = 0; i < rt->nb_rtsp_streams; i++) {\n rtsp_st = rt->rtsp_streams[i];\n if (rtsp_st) {\n if (rtsp_st->dynamic_handler && rtsp_st->dynamic_protocol_context) {\n if (rtsp_st->dynamic_handler->close)\n rtsp_st->dynamic_handler->close(\n rtsp_st->dynamic_protocol_context);\n av_free(rtsp_st->dynamic_protocol_context);\n }\n for (j = 0; j < rtsp_st->nb_include_source_addrs; j++)\n av_free(rtsp_st->include_source_addrs[j]);\n av_freep(&rtsp_st->include_source_addrs);\n for (j = 0; j < rtsp_st->nb_exclude_source_addrs; j++)\n av_free(rtsp_st->exclude_source_addrs[j]);\n av_freep(&rtsp_st->exclude_source_addrs);\n av_free(rtsp_st);\n }\n }\n av_free(rt->rtsp_streams);\n if (rt->asf_ctx) {\n avformat_close_input(&rt->asf_ctx);\n }\n if (CONFIG_RTPDEC && rt->ts)\n ff_mpegts_parse_close(rt->ts);\n av_free(rt->p);\n av_free(rt->recvbuf);\n}', 'void avformat_close_input(AVFormatContext **ps)\n{\n AVFormatContext *s = *ps;\n AVIOContext *pb = s->pb;\n if ((s->iformat && s->iformat->flags & AVFMT_NOFILE) ||\n (s->flags & AVFMT_FLAG_CUSTOM_IO))\n pb = NULL;\n flush_packet_queue(s);\n if (s->iformat)\n if (s->iformat->read_close)\n s->iformat->read_close(s);\n avformat_free_context(s);\n *ps = NULL;\n avio_close(pb);\n}', 'void avformat_free_context(AVFormatContext *s)\n{\n int i;\n if (!s)\n return;\n av_opt_free(s);\n if (s->iformat && s->iformat->priv_class && s->priv_data)\n av_opt_free(s->priv_data);\n for (i = 0; i < s->nb_streams; i++)\n free_stream(&s->streams[i]);\n for (i = s->nb_programs - 1; i >= 0; i--) {\n av_dict_free(&s->programs[i]->metadata);\n av_freep(&s->programs[i]->stream_index);\n av_freep(&s->programs[i]);\n }\n av_freep(&s->programs);\n av_freep(&s->priv_data);\n while (s->nb_chapters--) {\n av_dict_free(&s->chapters[s->nb_chapters]->metadata);\n av_free(s->chapters[s->nb_chapters]);\n }\n av_freep(&s->chapters);\n av_dict_free(&s->metadata);\n av_freep(&s->streams);\n av_freep(&s->internal);\n av_free(s);\n}'] |
25,935 | 0 | https://gitlab.com/libtiff/libtiff/blob/163627448aa8d2893582f2546dd85706586e6243/libtiff/tif_swab.c/#L81 | void
TIFFSwabArrayOfShort(register uint16* wp, tmsize_t n)
{
register unsigned char* cp;
register unsigned char t;
assert(sizeof(uint16)==2);
while (n-- > 0) {
cp = (unsigned char*) wp;
t = cp[1]; cp[1] = cp[0]; cp[0] = t;
wp++;
}
} | ['static int\nTIFFWriteDirectoryTagColormap(TIFF* tif, uint32* ndir, TIFFDirEntry* dir)\n{\n\tstatic const char module[] = "TIFFWriteDirectoryTagColormap";\n\tuint32 m;\n\tuint16* n;\n\tint o;\n\tif (dir==NULL)\n\t{\n\t\t(*ndir)++;\n\t\treturn(1);\n\t}\n\tm=(1<<tif->tif_dir.td_bitspersample);\n\tn=_TIFFmalloc(3*m*sizeof(uint16));\n\tif (n==NULL)\n\t{\n\t\tTIFFErrorExt(tif->tif_clientdata,module,"Out of memory");\n\t\treturn(0);\n\t}\n\t_TIFFmemcpy(&n[0],tif->tif_dir.td_colormap[0],m*sizeof(uint16));\n\t_TIFFmemcpy(&n[m],tif->tif_dir.td_colormap[1],m*sizeof(uint16));\n\t_TIFFmemcpy(&n[2*m],tif->tif_dir.td_colormap[2],m*sizeof(uint16));\n\to=TIFFWriteDirectoryTagCheckedShortArray(tif,ndir,dir,TIFFTAG_COLORMAP,3*m,n);\n\t_TIFFfree(n);\n\treturn(o);\n}', 'void*\n_TIFFmalloc(tmsize_t s)\n{\n if (s == 0)\n return ((void *) NULL);\n\treturn (malloc((size_t) s));\n}', 'static int\nTIFFWriteDirectoryTagCheckedShortArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, uint16* value)\n{\n\tassert(count<0x80000000);\n\tassert(sizeof(uint16)==2);\n\tif (tif->tif_flags&TIFF_SWAB)\n\t\tTIFFSwabArrayOfShort(value,count);\n\treturn(TIFFWriteDirectoryTagData(tif,ndir,dir,tag,TIFF_SHORT,count,count*2,value));\n}', 'void\nTIFFSwabArrayOfShort(register uint16* wp, tmsize_t n)\n{\n\tregister unsigned char* cp;\n\tregister unsigned char t;\n\tassert(sizeof(uint16)==2);\n\twhile (n-- > 0) {\n\t\tcp = (unsigned char*) wp;\n\t\tt = cp[1]; cp[1] = cp[0]; cp[0] = t;\n\t\twp++;\n\t}\n}'] |
25,936 | 0 | https://github.com/libav/libav/blob/e5b0fc170f85b00f7dd0ac514918fb5c95253d39/libavcodec/qdm2.c/#L970 | static void synthfilt_build_sb_samples(QDM2Context *q, BitstreamContext *bc,
int length, int sb_min, int sb_max)
{
int sb, j, k, n, ch, run, channels;
int joined_stereo, zero_encoding;
int type34_first;
float type34_div = 0;
float type34_predictor;
float samples[10], sign_bits[16];
if (length == 0) {
for (sb=sb_min; sb < sb_max; sb++)
build_sb_samples_from_noise(q, sb);
return;
}
for (sb = sb_min; sb < sb_max; sb++) {
channels = q->nb_channels;
if (q->nb_channels <= 1 || sb < 12)
joined_stereo = 0;
else if (sb >= 24)
joined_stereo = 1;
else
joined_stereo = (bitstream_bits_left(bc) >= 1) ? bitstream_read_bit(bc) : 0;
if (joined_stereo) {
if (bitstream_bits_left(bc) >= 16)
for (j = 0; j < 16; j++)
sign_bits[j] = bitstream_read_bit(bc);
for (j = 0; j < 64; j++)
if (q->coding_method[1][sb][j] > q->coding_method[0][sb][j])
q->coding_method[0][sb][j] = q->coding_method[1][sb][j];
if (fix_coding_method_array(sb, q->nb_channels,
q->coding_method)) {
build_sb_samples_from_noise(q, sb);
continue;
}
channels = 1;
}
for (ch = 0; ch < channels; ch++) {
FIX_NOISE_IDX(q->noise_idx);
zero_encoding = (bitstream_bits_left(bc) >= 1) ? bitstream_read_bit(bc) : 0;
type34_predictor = 0.0;
type34_first = 1;
for (j = 0; j < 128; ) {
switch (q->coding_method[ch][sb][j / 2]) {
case 8:
if (bitstream_bits_left(bc) >= 10) {
if (zero_encoding) {
for (k = 0; k < 5; k++) {
if ((j + 2 * k) >= 128)
break;
samples[2 * k] = bitstream_read_bit(bc) ? dequant_1bit[joined_stereo][2 * bitstream_read_bit(bc)] : 0;
}
} else {
n = bitstream_read(bc, 8);
for (k = 0; k < 5; k++)
samples[2 * k] = dequant_1bit[joined_stereo][random_dequant_index[n][k]];
}
for (k = 0; k < 5; k++)
samples[2 * k + 1] = SB_DITHERING_NOISE(sb,q->noise_idx);
} else {
for (k = 0; k < 10; k++)
samples[k] = SB_DITHERING_NOISE(sb,q->noise_idx);
}
run = 10;
break;
case 10:
if (bitstream_bits_left(bc) >= 1) {
float f = 0.81;
if (bitstream_read_bit(bc))
f = -f;
f -= noise_samples[((sb + 1) * (j +5 * ch + 1)) & 127] * 9.0 / 40.0;
samples[0] = f;
} else {
samples[0] = SB_DITHERING_NOISE(sb,q->noise_idx);
}
run = 1;
break;
case 16:
if (bitstream_bits_left(bc) >= 10) {
if (zero_encoding) {
for (k = 0; k < 5; k++) {
if ((j + k) >= 128)
break;
samples[k] = (bitstream_read_bit(bc) == 0) ? 0 : dequant_1bit[joined_stereo][2 * bitstream_read_bit(bc)];
}
} else {
n = bitstream_read (bc, 8);
for (k = 0; k < 5; k++)
samples[k] = dequant_1bit[joined_stereo][random_dequant_index[n][k]];
}
} else {
for (k = 0; k < 5; k++)
samples[k] = SB_DITHERING_NOISE(sb,q->noise_idx);
}
run = 5;
break;
case 24:
if (bitstream_bits_left(bc) >= 7) {
n = bitstream_read(bc, 7);
for (k = 0; k < 3; k++)
samples[k] = (random_dequant_type24[n][k] - 2.0) * 0.5;
} else {
for (k = 0; k < 3; k++)
samples[k] = SB_DITHERING_NOISE(sb,q->noise_idx);
}
run = 3;
break;
case 30:
if (bitstream_bits_left(bc) >= 4) {
unsigned index = qdm2_get_vlc(bc, &vlc_tab_type30, 0, 1);
if (index < FF_ARRAY_ELEMS(type30_dequant)) {
samples[0] = type30_dequant[index];
} else
samples[0] = SB_DITHERING_NOISE(sb,q->noise_idx);
} else
samples[0] = SB_DITHERING_NOISE(sb,q->noise_idx);
run = 1;
break;
case 34:
if (bitstream_bits_left(bc) >= 7) {
if (type34_first) {
type34_div = (float)(1 << bitstream_read(bc, 2));
samples[0] = ((float)bitstream_read(bc, 5) - 16.0) / 15.0;
type34_predictor = samples[0];
type34_first = 0;
} else {
unsigned index = qdm2_get_vlc(bc, &vlc_tab_type34, 0, 1);
if (index < FF_ARRAY_ELEMS(type34_delta)) {
samples[0] = type34_delta[index] / type34_div + type34_predictor;
type34_predictor = samples[0];
} else
samples[0] = SB_DITHERING_NOISE(sb,q->noise_idx);
}
} else {
samples[0] = SB_DITHERING_NOISE(sb,q->noise_idx);
}
run = 1;
break;
default:
samples[0] = SB_DITHERING_NOISE(sb,q->noise_idx);
run = 1;
break;
}
if (joined_stereo) {
for (k = 0; k < run && j + k < 128; k++) {
q->sb_samples[0][j + k][sb] =
q->tone_level[0][sb][(j + k) / 2] * samples[k];
if (q->nb_channels == 2) {
if (sign_bits[(j + k) / 8])
q->sb_samples[1][j + k][sb] =
q->tone_level[1][sb][(j + k) / 2] * -samples[k];
else
q->sb_samples[1][j + k][sb] =
q->tone_level[1][sb][(j + k) / 2] * samples[k];
}
}
} else {
for (k = 0; k < run; k++)
if ((j + k) < 128)
q->sb_samples[ch][j + k][sb] = q->tone_level[ch][sb][(j + k)/2] * samples[k];
}
j += run;
}
}
}
} | ['static void synthfilt_build_sb_samples(QDM2Context *q, BitstreamContext *bc,\n int length, int sb_min, int sb_max)\n{\n int sb, j, k, n, ch, run, channels;\n int joined_stereo, zero_encoding;\n int type34_first;\n float type34_div = 0;\n float type34_predictor;\n float samples[10], sign_bits[16];\n if (length == 0) {\n for (sb=sb_min; sb < sb_max; sb++)\n build_sb_samples_from_noise(q, sb);\n return;\n }\n for (sb = sb_min; sb < sb_max; sb++) {\n channels = q->nb_channels;\n if (q->nb_channels <= 1 || sb < 12)\n joined_stereo = 0;\n else if (sb >= 24)\n joined_stereo = 1;\n else\n joined_stereo = (bitstream_bits_left(bc) >= 1) ? bitstream_read_bit(bc) : 0;\n if (joined_stereo) {\n if (bitstream_bits_left(bc) >= 16)\n for (j = 0; j < 16; j++)\n sign_bits[j] = bitstream_read_bit(bc);\n for (j = 0; j < 64; j++)\n if (q->coding_method[1][sb][j] > q->coding_method[0][sb][j])\n q->coding_method[0][sb][j] = q->coding_method[1][sb][j];\n if (fix_coding_method_array(sb, q->nb_channels,\n q->coding_method)) {\n build_sb_samples_from_noise(q, sb);\n continue;\n }\n channels = 1;\n }\n for (ch = 0; ch < channels; ch++) {\n FIX_NOISE_IDX(q->noise_idx);\n zero_encoding = (bitstream_bits_left(bc) >= 1) ? bitstream_read_bit(bc) : 0;\n type34_predictor = 0.0;\n type34_first = 1;\n for (j = 0; j < 128; ) {\n switch (q->coding_method[ch][sb][j / 2]) {\n case 8:\n if (bitstream_bits_left(bc) >= 10) {\n if (zero_encoding) {\n for (k = 0; k < 5; k++) {\n if ((j + 2 * k) >= 128)\n break;\n samples[2 * k] = bitstream_read_bit(bc) ? dequant_1bit[joined_stereo][2 * bitstream_read_bit(bc)] : 0;\n }\n } else {\n n = bitstream_read(bc, 8);\n for (k = 0; k < 5; k++)\n samples[2 * k] = dequant_1bit[joined_stereo][random_dequant_index[n][k]];\n }\n for (k = 0; k < 5; k++)\n samples[2 * k + 1] = SB_DITHERING_NOISE(sb,q->noise_idx);\n } else {\n for (k = 0; k < 10; k++)\n samples[k] = SB_DITHERING_NOISE(sb,q->noise_idx);\n }\n run = 10;\n break;\n case 10:\n if (bitstream_bits_left(bc) >= 1) {\n float f = 0.81;\n if (bitstream_read_bit(bc))\n f = -f;\n f -= noise_samples[((sb + 1) * (j +5 * ch + 1)) & 127] * 9.0 / 40.0;\n samples[0] = f;\n } else {\n samples[0] = SB_DITHERING_NOISE(sb,q->noise_idx);\n }\n run = 1;\n break;\n case 16:\n if (bitstream_bits_left(bc) >= 10) {\n if (zero_encoding) {\n for (k = 0; k < 5; k++) {\n if ((j + k) >= 128)\n break;\n samples[k] = (bitstream_read_bit(bc) == 0) ? 0 : dequant_1bit[joined_stereo][2 * bitstream_read_bit(bc)];\n }\n } else {\n n = bitstream_read (bc, 8);\n for (k = 0; k < 5; k++)\n samples[k] = dequant_1bit[joined_stereo][random_dequant_index[n][k]];\n }\n } else {\n for (k = 0; k < 5; k++)\n samples[k] = SB_DITHERING_NOISE(sb,q->noise_idx);\n }\n run = 5;\n break;\n case 24:\n if (bitstream_bits_left(bc) >= 7) {\n n = bitstream_read(bc, 7);\n for (k = 0; k < 3; k++)\n samples[k] = (random_dequant_type24[n][k] - 2.0) * 0.5;\n } else {\n for (k = 0; k < 3; k++)\n samples[k] = SB_DITHERING_NOISE(sb,q->noise_idx);\n }\n run = 3;\n break;\n case 30:\n if (bitstream_bits_left(bc) >= 4) {\n unsigned index = qdm2_get_vlc(bc, &vlc_tab_type30, 0, 1);\n if (index < FF_ARRAY_ELEMS(type30_dequant)) {\n samples[0] = type30_dequant[index];\n } else\n samples[0] = SB_DITHERING_NOISE(sb,q->noise_idx);\n } else\n samples[0] = SB_DITHERING_NOISE(sb,q->noise_idx);\n run = 1;\n break;\n case 34:\n if (bitstream_bits_left(bc) >= 7) {\n if (type34_first) {\n type34_div = (float)(1 << bitstream_read(bc, 2));\n samples[0] = ((float)bitstream_read(bc, 5) - 16.0) / 15.0;\n type34_predictor = samples[0];\n type34_first = 0;\n } else {\n unsigned index = qdm2_get_vlc(bc, &vlc_tab_type34, 0, 1);\n if (index < FF_ARRAY_ELEMS(type34_delta)) {\n samples[0] = type34_delta[index] / type34_div + type34_predictor;\n type34_predictor = samples[0];\n } else\n samples[0] = SB_DITHERING_NOISE(sb,q->noise_idx);\n }\n } else {\n samples[0] = SB_DITHERING_NOISE(sb,q->noise_idx);\n }\n run = 1;\n break;\n default:\n samples[0] = SB_DITHERING_NOISE(sb,q->noise_idx);\n run = 1;\n break;\n }\n if (joined_stereo) {\n for (k = 0; k < run && j + k < 128; k++) {\n q->sb_samples[0][j + k][sb] =\n q->tone_level[0][sb][(j + k) / 2] * samples[k];\n if (q->nb_channels == 2) {\n if (sign_bits[(j + k) / 8])\n q->sb_samples[1][j + k][sb] =\n q->tone_level[1][sb][(j + k) / 2] * -samples[k];\n else\n q->sb_samples[1][j + k][sb] =\n q->tone_level[1][sb][(j + k) / 2] * samples[k];\n }\n }\n } else {\n for (k = 0; k < run; k++)\n if ((j + k) < 128)\n q->sb_samples[ch][j + k][sb] = q->tone_level[ch][sb][(j + k)/2] * samples[k];\n }\n j += run;\n }\n }\n }\n}'] |
25,937 | 0 | https://github.com/openssl/openssl/blob/305b68f1a2b6d4d0aa07a6ab47ac372f067a40bb/crypto/bn/bn_lib.c/#L231 | static BN_ULONG *bn_expand_internal(const BIGNUM *b, int words)
{
BN_ULONG *a = NULL;
if (words > (INT_MAX / (4 * BN_BITS2))) {
BNerr(BN_F_BN_EXPAND_INTERNAL, BN_R_BIGNUM_TOO_LONG);
return NULL;
}
if (BN_get_flags(b, BN_FLG_STATIC_DATA)) {
BNerr(BN_F_BN_EXPAND_INTERNAL, BN_R_EXPAND_ON_STATIC_BIGNUM_DATA);
return NULL;
}
if (BN_get_flags(b, BN_FLG_SECURE))
a = OPENSSL_secure_zalloc(words * sizeof(*a));
else
a = OPENSSL_zalloc(words * sizeof(*a));
if (a == NULL) {
BNerr(BN_F_BN_EXPAND_INTERNAL, ERR_R_MALLOC_FAILURE);
return NULL;
}
assert(b->top <= words);
if (b->top > 0)
memcpy(a, b->d, sizeof(*a) * b->top);
return a;
} | ['BIGNUM *BN_CTX_get(BN_CTX *ctx)\n{\n BIGNUM *ret;\n CTXDBG_ENTRY("BN_CTX_get", ctx);\n if (ctx->err_stack || ctx->too_many)\n return NULL;\n if ((ret = BN_POOL_get(&ctx->pool, ctx->flags)) == NULL) {\n ctx->too_many = 1;\n BNerr(BN_F_BN_CTX_GET, BN_R_TOO_MANY_TEMPORARY_VARIABLES);\n return NULL;\n }\n BN_zero(ret);\n ctx->used++;\n CTXDBG_RET(ctx, ret);\n return ret;\n}', 'int BN_set_word(BIGNUM *a, BN_ULONG w)\n{\n bn_check_top(a);\n if (bn_expand(a, (int)sizeof(BN_ULONG) * 8) == NULL)\n return 0;\n a->neg = 0;\n a->d[0] = w;\n a->top = (w ? 1 : 0);\n a->flags &= ~BN_FLG_FIXED_TOP;\n bn_check_top(a);\n return 1;\n}', 'static ossl_inline BIGNUM *bn_expand(BIGNUM *a, int bits)\n{\n if (bits > (INT_MAX - BN_BITS2 + 1))\n return NULL;\n if (((bits+BN_BITS2-1)/BN_BITS2) <= (a)->dmax)\n return a;\n return bn_expand2((a),(bits+BN_BITS2-1)/BN_BITS2);\n}', 'BIGNUM *bn_expand2(BIGNUM *b, int words)\n{\n if (words > b->dmax) {\n BN_ULONG *a = bn_expand_internal(b, words);\n if (!a)\n return NULL;\n if (b->d) {\n OPENSSL_cleanse(b->d, b->dmax * sizeof(b->d[0]));\n bn_free_d(b);\n }\n b->d = a;\n b->dmax = words;\n }\n return b;\n}', 'static BN_ULONG *bn_expand_internal(const BIGNUM *b, int words)\n{\n BN_ULONG *a = NULL;\n if (words > (INT_MAX / (4 * BN_BITS2))) {\n BNerr(BN_F_BN_EXPAND_INTERNAL, BN_R_BIGNUM_TOO_LONG);\n return NULL;\n }\n if (BN_get_flags(b, BN_FLG_STATIC_DATA)) {\n BNerr(BN_F_BN_EXPAND_INTERNAL, BN_R_EXPAND_ON_STATIC_BIGNUM_DATA);\n return NULL;\n }\n if (BN_get_flags(b, BN_FLG_SECURE))\n a = OPENSSL_secure_zalloc(words * sizeof(*a));\n else\n a = OPENSSL_zalloc(words * sizeof(*a));\n if (a == NULL) {\n BNerr(BN_F_BN_EXPAND_INTERNAL, ERR_R_MALLOC_FAILURE);\n return NULL;\n }\n assert(b->top <= words);\n if (b->top > 0)\n memcpy(a, b->d, sizeof(*a) * b->top);\n return a;\n}', 'void *CRYPTO_zalloc(size_t num, const char *file, int line)\n{\n void *ret = CRYPTO_malloc(num, file, line);\n FAILTEST();\n if (ret != NULL)\n memset(ret, 0, num);\n return ret;\n}', 'void *CRYPTO_malloc(size_t num, const char *file, int line)\n{\n void *ret = NULL;\n INCREMENT(malloc_count);\n if (malloc_impl != NULL && malloc_impl != CRYPTO_malloc)\n return malloc_impl(num, file, line);\n if (num == 0)\n return NULL;\n FAILTEST();\n if (allow_customize) {\n allow_customize = 0;\n }\n#ifndef OPENSSL_NO_CRYPTO_MDEBUG\n if (call_malloc_debug) {\n CRYPTO_mem_debug_malloc(NULL, num, 0, file, line);\n ret = malloc(num);\n CRYPTO_mem_debug_malloc(ret, num, 1, file, line);\n } else {\n ret = malloc(num);\n }\n#else\n (void)(file); (void)(line);\n ret = malloc(num);\n#endif\n return ret;\n}'] |
25,938 | 0 | https://github.com/libav/libav/blob/80bdf7e0b7975956c42f17589cb21a5531f179ef/libavcodec/vc1dec.c/#L1907 | static inline void vc1_pred_mv_intfr(VC1Context *v, int n, int dmv_x, int dmv_y, int mvn, int r_x, int r_y, uint8_t* is_intra)
{
MpegEncContext *s = &v->s;
int xy, wrap, off = 0;
int A[2], B[2], C[2];
int px, py;
int a_valid = 0, b_valid = 0, c_valid = 0;
int field_a, field_b, field_c;
int total_valid, num_samefield, num_oppfield;
int pos_c, pos_b, n_adj;
wrap = s->b8_stride;
xy = s->block_index[n];
if(s->mb_intra){
s->mv[0][n][0] = s->current_picture.f.motion_val[0][xy][0] = 0;
s->mv[0][n][1] = s->current_picture.f.motion_val[0][xy][1] = 0;
s->current_picture.f.motion_val[1][xy][0] = 0;
s->current_picture.f.motion_val[1][xy][1] = 0;
if(mvn == 1) {
s->current_picture.f.motion_val[0][xy + 1][0] = 0;
s->current_picture.f.motion_val[0][xy + 1][1] = 0;
s->current_picture.f.motion_val[0][xy + wrap][0] = 0;
s->current_picture.f.motion_val[0][xy + wrap][1] = 0;
s->current_picture.f.motion_val[0][xy + wrap + 1][0] = 0;
s->current_picture.f.motion_val[0][xy + wrap + 1][1] = 0;
v->luma_mv[s->mb_x][0] = v->luma_mv[s->mb_x][1] = 0;
s->current_picture.f.motion_val[1][xy + 1][0] = 0;
s->current_picture.f.motion_val[1][xy + 1][1] = 0;
s->current_picture.f.motion_val[1][xy + wrap][0] = 0;
s->current_picture.f.motion_val[1][xy + wrap][1] = 0;
s->current_picture.f.motion_val[1][xy + wrap + 1][0] = 0;
s->current_picture.f.motion_val[1][xy + wrap + 1][1] = 0;
}
return;
}
off = ((n == 0) || (n == 1)) ? 1 : -1;
if (s->mb_x || (n == 1) || (n == 3)) {
if ((v->blk_mv_type[xy])
|| (!v->blk_mv_type[xy] && !v->blk_mv_type[xy - 1])) {
A[0] = s->current_picture.f.motion_val[0][xy - 1][0];
A[1] = s->current_picture.f.motion_val[0][xy - 1][1];
a_valid = 1;
} else {
A[0] = (s->current_picture.f.motion_val[0][xy - 1][0]
+ s->current_picture.f.motion_val[0][xy - 1 + off*wrap][0] + 1) >> 1;
A[1] = (s->current_picture.f.motion_val[0][xy - 1][1]
+ s->current_picture.f.motion_val[0][xy - 1 + off*wrap][1] + 1) >> 1;
a_valid = 1;
}
if (!(n & 1) && v->is_intra[s->mb_x - 1]) {
a_valid = 0;
A[0] = A[1] = 0;
}
} else A[0] = A[1] = 0;
B[0] = B[1] = C[0] = C[1] = 0;
if (n == 0 || n == 1 || v->blk_mv_type[xy]) {
if (!s->first_slice_line) {
if (!v->is_intra[s->mb_x - s->mb_stride]) {
b_valid = 1;
n_adj = n | 2;
pos_b = s->block_index[n_adj] - 2 * wrap;
if (v->blk_mv_type[pos_b] && v->blk_mv_type[xy]) {
n_adj = (n & 2) | (n & 1);
}
B[0] = s->current_picture.f.motion_val[0][s->block_index[n_adj] - 2 * wrap][0];
B[1] = s->current_picture.f.motion_val[0][s->block_index[n_adj] - 2 * wrap][1];
if (v->blk_mv_type[pos_b] && !v->blk_mv_type[xy]) {
B[0] = (1 + B[0] + s->current_picture.f.motion_val[0][s->block_index[n_adj ^ 2] - 2 * wrap][0]) >> 1;
B[1] = (1 + B[1] + s->current_picture.f.motion_val[0][s->block_index[n_adj ^ 2] - 2 * wrap][1]) >> 1;
}
}
if (s->mb_width > 1) {
if (!v->is_intra[s->mb_x - s->mb_stride + 1]) {
c_valid = 1;
n_adj = 2;
pos_c = s->block_index[2] - 2*wrap + 2;
if (v->blk_mv_type[pos_c] && v->blk_mv_type[xy]) {
n_adj = n & 2;
}
C[0] = s->current_picture.f.motion_val[0][s->block_index[n_adj] - 2*wrap + 2][0];
C[1] = s->current_picture.f.motion_val[0][s->block_index[n_adj] - 2*wrap + 2][1];
if (v->blk_mv_type[pos_c] && !v->blk_mv_type[xy]) {
C[0] = (1 + C[0] + (s->current_picture.f.motion_val[0][s->block_index[n_adj ^ 2] - 2 * wrap + 2][0])) >> 1;
C[1] = (1 + C[1] + (s->current_picture.f.motion_val[0][s->block_index[n_adj ^ 2] - 2 * wrap + 2][1])) >> 1;
}
if (s->mb_x == s->mb_width - 1) {
if (!v->is_intra[s->mb_x - s->mb_stride - 1]) {
c_valid = 1;
n_adj = 3;
pos_c = s->block_index[3] - 2*wrap - 2;
if (v->blk_mv_type[pos_c] && v->blk_mv_type[xy]) {
n_adj = n | 1;
}
C[0] = s->current_picture.f.motion_val[0][s->block_index[n_adj] - 2*wrap - 2][0];
C[1] = s->current_picture.f.motion_val[0][s->block_index[n_adj] - 2*wrap - 2][1];
if (v->blk_mv_type[pos_c] && !v->blk_mv_type[xy]) {
C[0] = (1 + C[0] + s->current_picture.f.motion_val[0][s->block_index[1] - 2*wrap - 2][0]) >> 1;
C[1] = (1 + C[1] + s->current_picture.f.motion_val[0][s->block_index[1] - 2*wrap - 2][1]) >> 1;
}
} else c_valid = 0;
}
}
}
}
} else {
pos_b = s->block_index[1];
b_valid = 1;
B[0] = s->current_picture.f.motion_val[0][pos_b][0];
B[1] = s->current_picture.f.motion_val[0][pos_b][1];
pos_c = s->block_index[0];
c_valid = 1;
C[0] = s->current_picture.f.motion_val[0][pos_c][0];
C[1] = s->current_picture.f.motion_val[0][pos_c][1];
}
total_valid = a_valid + b_valid + c_valid;
if (!s->mb_x && !(n==1 || n==3)) {
A[0] = A[1] = 0;
}
if ((s->first_slice_line && v->blk_mv_type[xy]) || (s->first_slice_line && !(n & 2))) {
B[0] = B[1] = C[0] = C[1] = 0;
}
if (!v->blk_mv_type[xy]) {
if(s->mb_width == 1) {
px = B[0];
py = B[1];
} else {
if (total_valid >= 2) {
px = mid_pred(A[0], B[0], C[0]);
py = mid_pred(A[1], B[1], C[1]);
} else if (total_valid) {
if (a_valid) { px = A[0]; py = A[1]; }
if (b_valid) { px = B[0]; py = B[1]; }
if (c_valid) { px = C[0]; py = C[1]; }
} else px = py = 0;
}
} else {
if (a_valid)
field_a = (A[1] & 4) ? 1 : 0;
else
field_a = 0;
if (b_valid)
field_b = (B[1] & 4) ? 1 : 0;
else
field_b = 0;
if (c_valid)
field_c = (C[1] & 4) ? 1 : 0;
else
field_c = 0;
num_oppfield = field_a + field_b + field_c;
num_samefield = total_valid - num_oppfield;
if (total_valid == 3) {
if ((num_samefield == 3) || (num_oppfield == 3)) {
px = mid_pred(A[0], B[0], C[0]);
py = mid_pred(A[1], B[1], C[1]);
} else if (num_samefield >= num_oppfield) {
px = (!field_a) ? A[0] : B[0];
py = (!field_a) ? A[1] : B[1];
} else {
px = (field_a) ? A[0] : B[0];
py = (field_a) ? A[1] : B[1];
}
} else if (total_valid == 2) {
if (num_samefield >= num_oppfield) {
if (!field_a && a_valid) {
px = A[0];
py = A[1];
} else if (!field_b && b_valid) {
px = B[0];
py = B[1];
} else if (c_valid) {
px = C[0];
py = C[1];
} else px = py = 0;
} else {
if (field_a && a_valid) {
px = A[0];
py = A[1];
} else if (field_b && b_valid) {
px = B[0];
py = B[1];
} else if (c_valid) {
px = C[0];
py = C[1];
}
}
} else if (total_valid == 1) {
px = (a_valid) ? A[0] : ((b_valid) ? B[0] : C[0]);
py = (a_valid) ? A[1] : ((b_valid) ? B[1] : C[1]);
} else px = py = 0;
}
s->mv[0][n][0] = s->current_picture.f.motion_val[0][xy][0] = ((px + dmv_x + r_x) & ((r_x << 1) - 1)) - r_x;
s->mv[0][n][1] = s->current_picture.f.motion_val[0][xy][1] = ((py + dmv_y + r_y) & ((r_y << 1) - 1)) - r_y;
if(mvn == 1) {
s->current_picture.f.motion_val[0][xy + 1][0] = s->current_picture.f.motion_val[0][xy][0];
s->current_picture.f.motion_val[0][xy + 1][1] = s->current_picture.f.motion_val[0][xy][1];
s->current_picture.f.motion_val[0][xy + wrap][0] = s->current_picture.f.motion_val[0][xy][0];
s->current_picture.f.motion_val[0][xy + wrap][1] = s->current_picture.f.motion_val[0][xy][1];
s->current_picture.f.motion_val[0][xy + wrap + 1][0] = s->current_picture.f.motion_val[0][xy][0];
s->current_picture.f.motion_val[0][xy + wrap + 1][1] = s->current_picture.f.motion_val[0][xy][1];
} else if (mvn == 2) {
s->current_picture.f.motion_val[0][xy + 1][0] = s->current_picture.f.motion_val[0][xy][0];
s->current_picture.f.motion_val[0][xy + 1][1] = s->current_picture.f.motion_val[0][xy][1];
s->mv[0][n + 1][0] = s->mv[0][n][0];
s->mv[0][n + 1][1] = s->mv[0][n][1];
}
} | ['static inline void vc1_pred_mv_intfr(VC1Context *v, int n, int dmv_x, int dmv_y, int mvn, int r_x, int r_y, uint8_t* is_intra)\n{\n MpegEncContext *s = &v->s;\n int xy, wrap, off = 0;\n int A[2], B[2], C[2];\n int px, py;\n int a_valid = 0, b_valid = 0, c_valid = 0;\n int field_a, field_b, field_c;\n int total_valid, num_samefield, num_oppfield;\n int pos_c, pos_b, n_adj;\n wrap = s->b8_stride;\n xy = s->block_index[n];\n if(s->mb_intra){\n s->mv[0][n][0] = s->current_picture.f.motion_val[0][xy][0] = 0;\n s->mv[0][n][1] = s->current_picture.f.motion_val[0][xy][1] = 0;\n s->current_picture.f.motion_val[1][xy][0] = 0;\n s->current_picture.f.motion_val[1][xy][1] = 0;\n if(mvn == 1) {\n s->current_picture.f.motion_val[0][xy + 1][0] = 0;\n s->current_picture.f.motion_val[0][xy + 1][1] = 0;\n s->current_picture.f.motion_val[0][xy + wrap][0] = 0;\n s->current_picture.f.motion_val[0][xy + wrap][1] = 0;\n s->current_picture.f.motion_val[0][xy + wrap + 1][0] = 0;\n s->current_picture.f.motion_val[0][xy + wrap + 1][1] = 0;\n v->luma_mv[s->mb_x][0] = v->luma_mv[s->mb_x][1] = 0;\n s->current_picture.f.motion_val[1][xy + 1][0] = 0;\n s->current_picture.f.motion_val[1][xy + 1][1] = 0;\n s->current_picture.f.motion_val[1][xy + wrap][0] = 0;\n s->current_picture.f.motion_val[1][xy + wrap][1] = 0;\n s->current_picture.f.motion_val[1][xy + wrap + 1][0] = 0;\n s->current_picture.f.motion_val[1][xy + wrap + 1][1] = 0;\n }\n return;\n }\n off = ((n == 0) || (n == 1)) ? 1 : -1;\n if (s->mb_x || (n == 1) || (n == 3)) {\n if ((v->blk_mv_type[xy])\n || (!v->blk_mv_type[xy] && !v->blk_mv_type[xy - 1])) {\n A[0] = s->current_picture.f.motion_val[0][xy - 1][0];\n A[1] = s->current_picture.f.motion_val[0][xy - 1][1];\n a_valid = 1;\n } else {\n A[0] = (s->current_picture.f.motion_val[0][xy - 1][0]\n + s->current_picture.f.motion_val[0][xy - 1 + off*wrap][0] + 1) >> 1;\n A[1] = (s->current_picture.f.motion_val[0][xy - 1][1]\n + s->current_picture.f.motion_val[0][xy - 1 + off*wrap][1] + 1) >> 1;\n a_valid = 1;\n }\n if (!(n & 1) && v->is_intra[s->mb_x - 1]) {\n a_valid = 0;\n A[0] = A[1] = 0;\n }\n } else A[0] = A[1] = 0;\n B[0] = B[1] = C[0] = C[1] = 0;\n if (n == 0 || n == 1 || v->blk_mv_type[xy]) {\n if (!s->first_slice_line) {\n if (!v->is_intra[s->mb_x - s->mb_stride]) {\n b_valid = 1;\n n_adj = n | 2;\n pos_b = s->block_index[n_adj] - 2 * wrap;\n if (v->blk_mv_type[pos_b] && v->blk_mv_type[xy]) {\n n_adj = (n & 2) | (n & 1);\n }\n B[0] = s->current_picture.f.motion_val[0][s->block_index[n_adj] - 2 * wrap][0];\n B[1] = s->current_picture.f.motion_val[0][s->block_index[n_adj] - 2 * wrap][1];\n if (v->blk_mv_type[pos_b] && !v->blk_mv_type[xy]) {\n B[0] = (1 + B[0] + s->current_picture.f.motion_val[0][s->block_index[n_adj ^ 2] - 2 * wrap][0]) >> 1;\n B[1] = (1 + B[1] + s->current_picture.f.motion_val[0][s->block_index[n_adj ^ 2] - 2 * wrap][1]) >> 1;\n }\n }\n if (s->mb_width > 1) {\n if (!v->is_intra[s->mb_x - s->mb_stride + 1]) {\n c_valid = 1;\n n_adj = 2;\n pos_c = s->block_index[2] - 2*wrap + 2;\n if (v->blk_mv_type[pos_c] && v->blk_mv_type[xy]) {\n n_adj = n & 2;\n }\n C[0] = s->current_picture.f.motion_val[0][s->block_index[n_adj] - 2*wrap + 2][0];\n C[1] = s->current_picture.f.motion_val[0][s->block_index[n_adj] - 2*wrap + 2][1];\n if (v->blk_mv_type[pos_c] && !v->blk_mv_type[xy]) {\n C[0] = (1 + C[0] + (s->current_picture.f.motion_val[0][s->block_index[n_adj ^ 2] - 2 * wrap + 2][0])) >> 1;\n C[1] = (1 + C[1] + (s->current_picture.f.motion_val[0][s->block_index[n_adj ^ 2] - 2 * wrap + 2][1])) >> 1;\n }\n if (s->mb_x == s->mb_width - 1) {\n if (!v->is_intra[s->mb_x - s->mb_stride - 1]) {\n c_valid = 1;\n n_adj = 3;\n pos_c = s->block_index[3] - 2*wrap - 2;\n if (v->blk_mv_type[pos_c] && v->blk_mv_type[xy]) {\n n_adj = n | 1;\n }\n C[0] = s->current_picture.f.motion_val[0][s->block_index[n_adj] - 2*wrap - 2][0];\n C[1] = s->current_picture.f.motion_val[0][s->block_index[n_adj] - 2*wrap - 2][1];\n if (v->blk_mv_type[pos_c] && !v->blk_mv_type[xy]) {\n C[0] = (1 + C[0] + s->current_picture.f.motion_val[0][s->block_index[1] - 2*wrap - 2][0]) >> 1;\n C[1] = (1 + C[1] + s->current_picture.f.motion_val[0][s->block_index[1] - 2*wrap - 2][1]) >> 1;\n }\n } else c_valid = 0;\n }\n }\n }\n }\n } else {\n pos_b = s->block_index[1];\n b_valid = 1;\n B[0] = s->current_picture.f.motion_val[0][pos_b][0];\n B[1] = s->current_picture.f.motion_val[0][pos_b][1];\n pos_c = s->block_index[0];\n c_valid = 1;\n C[0] = s->current_picture.f.motion_val[0][pos_c][0];\n C[1] = s->current_picture.f.motion_val[0][pos_c][1];\n }\n total_valid = a_valid + b_valid + c_valid;\n if (!s->mb_x && !(n==1 || n==3)) {\n A[0] = A[1] = 0;\n }\n if ((s->first_slice_line && v->blk_mv_type[xy]) || (s->first_slice_line && !(n & 2))) {\n B[0] = B[1] = C[0] = C[1] = 0;\n }\n if (!v->blk_mv_type[xy]) {\n if(s->mb_width == 1) {\n px = B[0];\n py = B[1];\n } else {\n if (total_valid >= 2) {\n px = mid_pred(A[0], B[0], C[0]);\n py = mid_pred(A[1], B[1], C[1]);\n } else if (total_valid) {\n if (a_valid) { px = A[0]; py = A[1]; }\n if (b_valid) { px = B[0]; py = B[1]; }\n if (c_valid) { px = C[0]; py = C[1]; }\n } else px = py = 0;\n }\n } else {\n if (a_valid)\n field_a = (A[1] & 4) ? 1 : 0;\n else\n field_a = 0;\n if (b_valid)\n field_b = (B[1] & 4) ? 1 : 0;\n else\n field_b = 0;\n if (c_valid)\n field_c = (C[1] & 4) ? 1 : 0;\n else\n field_c = 0;\n num_oppfield = field_a + field_b + field_c;\n num_samefield = total_valid - num_oppfield;\n if (total_valid == 3) {\n if ((num_samefield == 3) || (num_oppfield == 3)) {\n px = mid_pred(A[0], B[0], C[0]);\n py = mid_pred(A[1], B[1], C[1]);\n } else if (num_samefield >= num_oppfield) {\n px = (!field_a) ? A[0] : B[0];\n py = (!field_a) ? A[1] : B[1];\n } else {\n px = (field_a) ? A[0] : B[0];\n py = (field_a) ? A[1] : B[1];\n }\n } else if (total_valid == 2) {\n if (num_samefield >= num_oppfield) {\n if (!field_a && a_valid) {\n px = A[0];\n py = A[1];\n } else if (!field_b && b_valid) {\n px = B[0];\n py = B[1];\n } else if (c_valid) {\n px = C[0];\n py = C[1];\n } else px = py = 0;\n } else {\n if (field_a && a_valid) {\n px = A[0];\n py = A[1];\n } else if (field_b && b_valid) {\n px = B[0];\n py = B[1];\n } else if (c_valid) {\n px = C[0];\n py = C[1];\n }\n }\n } else if (total_valid == 1) {\n px = (a_valid) ? A[0] : ((b_valid) ? B[0] : C[0]);\n py = (a_valid) ? A[1] : ((b_valid) ? B[1] : C[1]);\n } else px = py = 0;\n }\n s->mv[0][n][0] = s->current_picture.f.motion_val[0][xy][0] = ((px + dmv_x + r_x) & ((r_x << 1) - 1)) - r_x;\n s->mv[0][n][1] = s->current_picture.f.motion_val[0][xy][1] = ((py + dmv_y + r_y) & ((r_y << 1) - 1)) - r_y;\n if(mvn == 1) {\n s->current_picture.f.motion_val[0][xy + 1][0] = s->current_picture.f.motion_val[0][xy][0];\n s->current_picture.f.motion_val[0][xy + 1][1] = s->current_picture.f.motion_val[0][xy][1];\n s->current_picture.f.motion_val[0][xy + wrap][0] = s->current_picture.f.motion_val[0][xy][0];\n s->current_picture.f.motion_val[0][xy + wrap][1] = s->current_picture.f.motion_val[0][xy][1];\n s->current_picture.f.motion_val[0][xy + wrap + 1][0] = s->current_picture.f.motion_val[0][xy][0];\n s->current_picture.f.motion_val[0][xy + wrap + 1][1] = s->current_picture.f.motion_val[0][xy][1];\n } else if (mvn == 2) {\n s->current_picture.f.motion_val[0][xy + 1][0] = s->current_picture.f.motion_val[0][xy][0];\n s->current_picture.f.motion_val[0][xy + 1][1] = s->current_picture.f.motion_val[0][xy][1];\n s->mv[0][n + 1][0] = s->mv[0][n][0];\n s->mv[0][n + 1][1] = s->mv[0][n][1];\n }\n}'] |
25,939 | 0 | https://github.com/openssl/openssl/blob/87c00c93c4d47525f1838ea7c6c544122ff0ca1a/crypto/mem.c/#L245 | void CRYPTO_free(void *str)
{
#ifndef OPENSSL_NO_CRYPTO_MDEBUG
if (call_malloc_debug) {
CRYPTO_mem_debug_free(str, 0);
free(str);
CRYPTO_mem_debug_free(str, 1);
} else {
free(str);
}
#else
free(str);
#endif
} | ['EVP_MD_CTX *ssl_replace_hash(EVP_MD_CTX **hash, const EVP_MD *md)\n{\n ssl_clear_hash_ctx(hash);\n *hash = EVP_MD_CTX_new();\n if (*hash == NULL || (md && EVP_DigestInit_ex(*hash, md, NULL) <= 0)) {\n EVP_MD_CTX_free(*hash);\n *hash = NULL;\n return NULL;\n }\n return *hash;\n}', 'int EVP_DigestInit_ex(EVP_MD_CTX *ctx, const EVP_MD *type, ENGINE *impl)\n{\n EVP_MD_CTX_clear_flags(ctx, EVP_MD_CTX_FLAG_CLEANED);\n#ifndef OPENSSL_NO_ENGINE\n if (ctx->engine && ctx->digest && (!type ||\n (type\n && (type->type ==\n ctx->digest->type))))\n goto skip_to_init;\n if (type) {\n if (ctx->engine)\n ENGINE_finish(ctx->engine);\n if (impl) {\n if (!ENGINE_init(impl)) {\n EVPerr(EVP_F_EVP_DIGESTINIT_EX, EVP_R_INITIALIZATION_ERROR);\n return 0;\n }\n } else\n impl = ENGINE_get_digest_engine(type->type);\n if (impl) {\n const EVP_MD *d = ENGINE_get_digest(impl, type->type);\n if (!d) {\n EVPerr(EVP_F_EVP_DIGESTINIT_EX, EVP_R_INITIALIZATION_ERROR);\n ENGINE_finish(impl);\n return 0;\n }\n type = d;\n ctx->engine = impl;\n } else\n ctx->engine = NULL;\n } else {\n if (!ctx->digest) {\n EVPerr(EVP_F_EVP_DIGESTINIT_EX, EVP_R_NO_DIGEST_SET);\n return 0;\n }\n type = ctx->digest;\n }\n#endif\n if (ctx->digest != type) {\n if (ctx->digest && ctx->digest->ctx_size)\n OPENSSL_free(ctx->md_data);\n ctx->digest = type;\n if (!(ctx->flags & EVP_MD_CTX_FLAG_NO_INIT) && type->ctx_size) {\n ctx->update = type->update;\n ctx->md_data = OPENSSL_malloc(type->ctx_size);\n if (ctx->md_data == NULL) {\n EVPerr(EVP_F_EVP_DIGESTINIT_EX, ERR_R_MALLOC_FAILURE);\n return 0;\n }\n }\n }\n#ifndef OPENSSL_NO_ENGINE\n skip_to_init:\n#endif\n if (ctx->pctx) {\n int r;\n r = EVP_PKEY_CTX_ctrl(ctx->pctx, -1, EVP_PKEY_OP_TYPE_SIG,\n EVP_PKEY_CTRL_DIGESTINIT, 0, ctx);\n if (r <= 0 && (r != -2))\n return 0;\n }\n if (ctx->flags & EVP_MD_CTX_FLAG_NO_INIT)\n return 1;\n return ctx->digest->init(ctx);\n}', 'void CRYPTO_free(void *str)\n{\n#ifndef OPENSSL_NO_CRYPTO_MDEBUG\n if (call_malloc_debug) {\n CRYPTO_mem_debug_free(str, 0);\n free(str);\n CRYPTO_mem_debug_free(str, 1);\n } else {\n free(str);\n }\n#else\n free(str);\n#endif\n}'] |
25,940 | 0 | https://github.com/openssl/openssl/blob/8da94770f0a049497b1a52ee469cca1f4a13b1a7/crypto/bn/bn_lib.c/#L454 | BIGNUM *BN_copy(BIGNUM *a, const BIGNUM *b)
{
int i;
BN_ULONG *A;
const BN_ULONG *B;
bn_check_top(b);
if (a == b)
return (a);
if (bn_wexpand(a, b->top) == NULL)
return (NULL);
#if 1
A = a->d;
B = b->d;
for (i = b->top >> 2; i > 0; i--, A += 4, B += 4) {
BN_ULONG a0, a1, a2, a3;
a0 = B[0];
a1 = B[1];
a2 = B[2];
a3 = B[3];
A[0] = a0;
A[1] = a1;
A[2] = a2;
A[3] = a3;
}
switch (b->top & 3) {
case 3:
A[2] = B[2];
case 2:
A[1] = B[1];
case 1:
A[0] = B[0];
case 0:;
}
#else
memcpy(a->d, b->d, sizeof(b->d[0]) * b->top);
#endif
a->top = b->top;
a->neg = b->neg;
bn_check_top(a);
return (a);
} | ['int ec_GFp_simple_dbl(const EC_GROUP *group, EC_POINT *r, const EC_POINT *a,\n BN_CTX *ctx)\n{\n int (*field_mul) (const EC_GROUP *, BIGNUM *, const BIGNUM *,\n const BIGNUM *, BN_CTX *);\n int (*field_sqr) (const EC_GROUP *, BIGNUM *, const BIGNUM *, BN_CTX *);\n const BIGNUM *p;\n BN_CTX *new_ctx = NULL;\n BIGNUM *n0, *n1, *n2, *n3;\n int ret = 0;\n if (EC_POINT_is_at_infinity(group, a)) {\n BN_zero(r->Z);\n r->Z_is_one = 0;\n return 1;\n }\n field_mul = group->meth->field_mul;\n field_sqr = group->meth->field_sqr;\n p = group->field;\n if (ctx == NULL) {\n ctx = new_ctx = BN_CTX_new();\n if (ctx == NULL)\n return 0;\n }\n BN_CTX_start(ctx);\n n0 = BN_CTX_get(ctx);\n n1 = BN_CTX_get(ctx);\n n2 = BN_CTX_get(ctx);\n n3 = BN_CTX_get(ctx);\n if (n3 == NULL)\n goto err;\n if (a->Z_is_one) {\n if (!field_sqr(group, n0, a->X, ctx))\n goto err;\n if (!BN_mod_lshift1_quick(n1, n0, p))\n goto err;\n if (!BN_mod_add_quick(n0, n0, n1, p))\n goto err;\n if (!BN_mod_add_quick(n1, n0, group->a, p))\n goto err;\n } else if (group->a_is_minus3) {\n if (!field_sqr(group, n1, a->Z, ctx))\n goto err;\n if (!BN_mod_add_quick(n0, a->X, n1, p))\n goto err;\n if (!BN_mod_sub_quick(n2, a->X, n1, p))\n goto err;\n if (!field_mul(group, n1, n0, n2, ctx))\n goto err;\n if (!BN_mod_lshift1_quick(n0, n1, p))\n goto err;\n if (!BN_mod_add_quick(n1, n0, n1, p))\n goto err;\n } else {\n if (!field_sqr(group, n0, a->X, ctx))\n goto err;\n if (!BN_mod_lshift1_quick(n1, n0, p))\n goto err;\n if (!BN_mod_add_quick(n0, n0, n1, p))\n goto err;\n if (!field_sqr(group, n1, a->Z, ctx))\n goto err;\n if (!field_sqr(group, n1, n1, ctx))\n goto err;\n if (!field_mul(group, n1, n1, group->a, ctx))\n goto err;\n if (!BN_mod_add_quick(n1, n1, n0, p))\n goto err;\n }\n if (a->Z_is_one) {\n if (!BN_copy(n0, a->Y))\n goto err;\n } else {\n if (!field_mul(group, n0, a->Y, a->Z, ctx))\n goto err;\n }\n if (!BN_mod_lshift1_quick(r->Z, n0, p))\n goto err;\n r->Z_is_one = 0;\n if (!field_sqr(group, n3, a->Y, ctx))\n goto err;\n if (!field_mul(group, n2, a->X, n3, ctx))\n goto err;\n if (!BN_mod_lshift_quick(n2, n2, 2, p))\n goto err;\n if (!BN_mod_lshift1_quick(n0, n2, p))\n goto err;\n if (!field_sqr(group, r->X, n1, ctx))\n goto err;\n if (!BN_mod_sub_quick(r->X, r->X, n0, p))\n goto err;\n if (!field_sqr(group, n0, n3, ctx))\n goto err;\n if (!BN_mod_lshift_quick(n3, n0, 3, p))\n goto err;\n if (!BN_mod_sub_quick(n0, n2, r->X, p))\n goto err;\n if (!field_mul(group, n0, n1, n0, ctx))\n goto err;\n if (!BN_mod_sub_quick(r->Y, n0, n3, p))\n goto err;\n ret = 1;\n err:\n BN_CTX_end(ctx);\n BN_CTX_free(new_ctx);\n return ret;\n}', 'BIGNUM *BN_CTX_get(BN_CTX *ctx)\n{\n BIGNUM *ret;\n CTXDBG_ENTRY("BN_CTX_get", ctx);\n if (ctx->err_stack || ctx->too_many)\n return NULL;\n if ((ret = BN_POOL_get(&ctx->pool, ctx->flags)) == NULL) {\n ctx->too_many = 1;\n BNerr(BN_F_BN_CTX_GET, BN_R_TOO_MANY_TEMPORARY_VARIABLES);\n return NULL;\n }\n BN_zero(ret);\n ctx->used++;\n CTXDBG_RET(ctx, ret);\n return ret;\n}', 'int BN_set_word(BIGNUM *a, BN_ULONG w)\n{\n bn_check_top(a);\n if (bn_expand(a, (int)sizeof(BN_ULONG) * 8) == NULL)\n return (0);\n a->neg = 0;\n a->d[0] = w;\n a->top = (w ? 1 : 0);\n bn_check_top(a);\n return (1);\n}', 'BIGNUM *BN_copy(BIGNUM *a, const BIGNUM *b)\n{\n int i;\n BN_ULONG *A;\n const BN_ULONG *B;\n bn_check_top(b);\n if (a == b)\n return (a);\n if (bn_wexpand(a, b->top) == NULL)\n return (NULL);\n#if 1\n A = a->d;\n B = b->d;\n for (i = b->top >> 2; i > 0; i--, A += 4, B += 4) {\n BN_ULONG a0, a1, a2, a3;\n a0 = B[0];\n a1 = B[1];\n a2 = B[2];\n a3 = B[3];\n A[0] = a0;\n A[1] = a1;\n A[2] = a2;\n A[3] = a3;\n }\n switch (b->top & 3) {\n case 3:\n A[2] = B[2];\n case 2:\n A[1] = B[1];\n case 1:\n A[0] = B[0];\n case 0:;\n }\n#else\n memcpy(a->d, b->d, sizeof(b->d[0]) * b->top);\n#endif\n a->top = b->top;\n a->neg = b->neg;\n bn_check_top(a);\n return (a);\n}', 'BIGNUM *bn_wexpand(BIGNUM *a, int words)\n{\n return (words <= a->dmax) ? a : bn_expand2(a, words);\n}'] |
25,941 | 0 | https://github.com/openssl/openssl/blob/00fe865dbec8fb626a63ed9f5b0be4073597c7a8/crypto/lhash/lhash.c/#L240 | void *lh_delete(LHASH *lh, const void *data)
{
unsigned long hash;
LHASH_NODE *nn,**rn;
void *ret;
lh->error=0;
rn=getrn(lh,data,&hash);
if (*rn == NULL)
{
lh->num_no_delete++;
return(NULL);
}
else
{
nn= *rn;
*rn=nn->next;
ret=nn->data;
OPENSSL_free(nn);
lh->num_delete++;
}
lh->num_items--;
if ((lh->num_nodes > MIN_NODES) &&
(lh->down_load >= (lh->num_items*LH_LOAD_MULT/lh->num_nodes)))
contract(lh);
return(ret);
} | ['int dtls1_connect(SSL *s)\n\t{\n\tBUF_MEM *buf=NULL;\n\tunsigned long Time=(unsigned long)time(NULL),l;\n\tlong num1;\n\tvoid (*cb)(const SSL *ssl,int type,int val)=NULL;\n\tint ret= -1;\n\tint new_state,state,skip=0;;\n\tRAND_add(&Time,sizeof(Time),0);\n\tERR_clear_error();\n\tclear_sys_error();\n\tif (s->info_callback != NULL)\n\t\tcb=s->info_callback;\n\telse if (s->ctx->info_callback != NULL)\n\t\tcb=s->ctx->info_callback;\n\ts->in_handshake++;\n\tif (!SSL_in_init(s) || SSL_in_before(s)) SSL_clear(s);\n\tfor (;;)\n\t\t{\n\t\tstate=s->state;\n\t\tswitch(s->state)\n\t\t\t{\n\t\tcase SSL_ST_RENEGOTIATE:\n\t\t\ts->new_session=1;\n\t\t\ts->state=SSL_ST_CONNECT;\n\t\t\ts->ctx->stats.sess_connect_renegotiate++;\n\t\tcase SSL_ST_BEFORE:\n\t\tcase SSL_ST_CONNECT:\n\t\tcase SSL_ST_BEFORE|SSL_ST_CONNECT:\n\t\tcase SSL_ST_OK|SSL_ST_CONNECT:\n\t\t\ts->server=0;\n\t\t\tif (cb != NULL) cb(s,SSL_CB_HANDSHAKE_START,1);\n\t\t\tif ((s->version & 0xff00 ) != (DTLS1_VERSION & 0xff00))\n\t\t\t\t{\n\t\t\t\tSSLerr(SSL_F_DTLS1_CONNECT, ERR_R_INTERNAL_ERROR);\n\t\t\t\tret = -1;\n\t\t\t\tgoto end;\n\t\t\t\t}\n\t\t\ts->type=SSL_ST_CONNECT;\n\t\t\tif (s->init_buf == NULL)\n\t\t\t\t{\n\t\t\t\tif ((buf=BUF_MEM_new()) == NULL)\n\t\t\t\t\t{\n\t\t\t\t\tret= -1;\n\t\t\t\t\tgoto end;\n\t\t\t\t\t}\n\t\t\t\tif (!BUF_MEM_grow(buf,SSL3_RT_MAX_PLAIN_LENGTH))\n\t\t\t\t\t{\n\t\t\t\t\tret= -1;\n\t\t\t\t\tgoto end;\n\t\t\t\t\t}\n\t\t\t\ts->init_buf=buf;\n\t\t\t\tbuf=NULL;\n\t\t\t\t}\n\t\t\tif (!ssl3_setup_buffers(s)) { ret= -1; goto end; }\n\t\t\tif (!ssl_init_wbio_buffer(s,0)) { ret= -1; goto end; }\n\t\t\tssl3_init_finished_mac(s);\n\t\t\ts->state=SSL3_ST_CW_CLNT_HELLO_A;\n\t\t\ts->ctx->stats.sess_connect++;\n\t\t\ts->init_num=0;\n\t\t\tbreak;\n\t\tcase SSL3_ST_CW_CLNT_HELLO_A:\n\t\tcase SSL3_ST_CW_CLNT_HELLO_B:\n\t\t\ts->shutdown=0;\n\t\t\tret=dtls1_client_hello(s);\n\t\t\tif (ret <= 0) goto end;\n\t\t\tif ( s->d1->send_cookie)\n\t\t\t\t{\n\t\t\t\ts->state=SSL3_ST_CW_FLUSH;\n\t\t\t\ts->s3->tmp.next_state=SSL3_ST_CR_SRVR_HELLO_A;\n\t\t\t\t}\n\t\t\telse\n\t\t\t\ts->state=SSL3_ST_CR_SRVR_HELLO_A;\n\t\t\ts->init_num=0;\n\t\t\tif (s->bbio != s->wbio)\n\t\t\t\ts->wbio=BIO_push(s->bbio,s->wbio);\n\t\t\tbreak;\n\t\tcase SSL3_ST_CR_SRVR_HELLO_A:\n\t\tcase SSL3_ST_CR_SRVR_HELLO_B:\n\t\t\tret=ssl3_get_server_hello(s);\n\t\t\tif (ret <= 0) goto end;\n\t\t\telse\n\t\t\t\t{\n\t\t\t\tif (s->hit)\n\t\t\t\t\ts->state=SSL3_ST_CR_FINISHED_A;\n\t\t\t\telse\n\t\t\t\t\ts->state=DTLS1_ST_CR_HELLO_VERIFY_REQUEST_A;\n\t\t\t\t}\n\t\t\ts->init_num=0;\n\t\t\tbreak;\n\t\tcase DTLS1_ST_CR_HELLO_VERIFY_REQUEST_A:\n\t\tcase DTLS1_ST_CR_HELLO_VERIFY_REQUEST_B:\n\t\t\tret = dtls1_get_hello_verify(s);\n\t\t\tif ( ret <= 0)\n\t\t\t\tgoto end;\n\t\t\tif ( s->d1->send_cookie)\n\t\t\t\ts->state=SSL3_ST_CW_CLNT_HELLO_A;\n\t\t\telse\n\t\t\t\ts->state = SSL3_ST_CR_CERT_A;\n\t\t\ts->init_num = 0;\n\t\t\tbreak;\n\t\tcase SSL3_ST_CR_CERT_A:\n\t\tcase SSL3_ST_CR_CERT_B:\n\t\t\tif (!(s->s3->tmp.new_cipher->algorithms & SSL_aNULL))\n\t\t\t\t{\n\t\t\t\tret=ssl3_get_server_certificate(s);\n\t\t\t\tif (ret <= 0) goto end;\n\t\t\t\t}\n\t\t\telse\n\t\t\t\tskip=1;\n\t\t\ts->state=SSL3_ST_CR_KEY_EXCH_A;\n\t\t\ts->init_num=0;\n\t\t\tbreak;\n\t\tcase SSL3_ST_CR_KEY_EXCH_A:\n\t\tcase SSL3_ST_CR_KEY_EXCH_B:\n\t\t\tret=ssl3_get_key_exchange(s);\n\t\t\tif (ret <= 0) goto end;\n\t\t\ts->state=SSL3_ST_CR_CERT_REQ_A;\n\t\t\ts->init_num=0;\n\t\t\tif (!ssl3_check_cert_and_algorithm(s))\n\t\t\t\t{\n\t\t\t\tret= -1;\n\t\t\t\tgoto end;\n\t\t\t\t}\n\t\t\tbreak;\n\t\tcase SSL3_ST_CR_CERT_REQ_A:\n\t\tcase SSL3_ST_CR_CERT_REQ_B:\n\t\t\tret=ssl3_get_certificate_request(s);\n\t\t\tif (ret <= 0) goto end;\n\t\t\ts->state=SSL3_ST_CR_SRVR_DONE_A;\n\t\t\ts->init_num=0;\n\t\t\tbreak;\n\t\tcase SSL3_ST_CR_SRVR_DONE_A:\n\t\tcase SSL3_ST_CR_SRVR_DONE_B:\n\t\t\tret=ssl3_get_server_done(s);\n\t\t\tif (ret <= 0) goto end;\n\t\t\tif (s->s3->tmp.cert_req)\n\t\t\t\ts->state=SSL3_ST_CW_CERT_A;\n\t\t\telse\n\t\t\t\ts->state=SSL3_ST_CW_KEY_EXCH_A;\n\t\t\ts->init_num=0;\n\t\t\tbreak;\n\t\tcase SSL3_ST_CW_CERT_A:\n\t\tcase SSL3_ST_CW_CERT_B:\n\t\tcase SSL3_ST_CW_CERT_C:\n\t\tcase SSL3_ST_CW_CERT_D:\n\t\t\tret=dtls1_send_client_certificate(s);\n\t\t\tif (ret <= 0) goto end;\n\t\t\ts->state=SSL3_ST_CW_KEY_EXCH_A;\n\t\t\ts->init_num=0;\n\t\t\tbreak;\n\t\tcase SSL3_ST_CW_KEY_EXCH_A:\n\t\tcase SSL3_ST_CW_KEY_EXCH_B:\n\t\t\tret=dtls1_send_client_key_exchange(s);\n\t\t\tif (ret <= 0) goto end;\n\t\t\tl=s->s3->tmp.new_cipher->algorithms;\n\t\t\tif (s->s3->tmp.cert_req == 1)\n\t\t\t\t{\n\t\t\t\ts->state=SSL3_ST_CW_CERT_VRFY_A;\n\t\t\t\t}\n\t\t\telse\n\t\t\t\t{\n\t\t\t\ts->state=SSL3_ST_CW_CHANGE_A;\n\t\t\t\ts->s3->change_cipher_spec=0;\n\t\t\t\t}\n\t\t\ts->init_num=0;\n\t\t\tbreak;\n\t\tcase SSL3_ST_CW_CERT_VRFY_A:\n\t\tcase SSL3_ST_CW_CERT_VRFY_B:\n\t\t\tret=dtls1_send_client_verify(s);\n\t\t\tif (ret <= 0) goto end;\n\t\t\ts->state=SSL3_ST_CW_CHANGE_A;\n\t\t\ts->init_num=0;\n\t\t\ts->s3->change_cipher_spec=0;\n\t\t\tbreak;\n\t\tcase SSL3_ST_CW_CHANGE_A:\n\t\tcase SSL3_ST_CW_CHANGE_B:\n\t\t\tret=dtls1_send_change_cipher_spec(s,\n\t\t\t\tSSL3_ST_CW_CHANGE_A,SSL3_ST_CW_CHANGE_B);\n\t\t\tif (ret <= 0) goto end;\n\t\t\ts->state=SSL3_ST_CW_FINISHED_A;\n\t\t\ts->init_num=0;\n\t\t\ts->session->cipher=s->s3->tmp.new_cipher;\n#ifdef OPENSSL_NO_COMP\n\t\t\ts->session->compress_meth=0;\n#else\n\t\t\tif (s->s3->tmp.new_compression == NULL)\n\t\t\t\ts->session->compress_meth=0;\n\t\t\telse\n\t\t\t\ts->session->compress_meth=\n\t\t\t\t\ts->s3->tmp.new_compression->id;\n#endif\n\t\t\tif (!s->method->ssl3_enc->setup_key_block(s))\n\t\t\t\t{\n\t\t\t\tret= -1;\n\t\t\t\tgoto end;\n\t\t\t\t}\n\t\t\tif (!s->method->ssl3_enc->change_cipher_state(s,\n\t\t\t\tSSL3_CHANGE_CIPHER_CLIENT_WRITE))\n\t\t\t\t{\n\t\t\t\tret= -1;\n\t\t\t\tgoto end;\n\t\t\t\t}\n\t\t\tdtls1_reset_seq_numbers(s, SSL3_CC_WRITE);\n\t\t\tbreak;\n\t\tcase SSL3_ST_CW_FINISHED_A:\n\t\tcase SSL3_ST_CW_FINISHED_B:\n\t\t\tret=dtls1_send_finished(s,\n\t\t\t\tSSL3_ST_CW_FINISHED_A,SSL3_ST_CW_FINISHED_B,\n\t\t\t\ts->method->ssl3_enc->client_finished_label,\n\t\t\t\ts->method->ssl3_enc->client_finished_label_len);\n\t\t\tif (ret <= 0) goto end;\n\t\t\ts->state=SSL3_ST_CW_FLUSH;\n\t\t\ts->s3->flags&= ~SSL3_FLAGS_POP_BUFFER;\n\t\t\tif (s->hit)\n\t\t\t\t{\n\t\t\t\ts->s3->tmp.next_state=SSL_ST_OK;\n\t\t\t\tif (s->s3->flags & SSL3_FLAGS_DELAY_CLIENT_FINISHED)\n\t\t\t\t\t{\n\t\t\t\t\ts->state=SSL_ST_OK;\n\t\t\t\t\ts->s3->flags|=SSL3_FLAGS_POP_BUFFER;\n\t\t\t\t\ts->s3->delay_buf_pop_ret=0;\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\telse\n\t\t\t\t{\n\t\t\t\ts->s3->tmp.next_state=SSL3_ST_CR_FINISHED_A;\n\t\t\t\t}\n\t\t\ts->init_num=0;\n\t\t\tbreak;\n\t\tcase SSL3_ST_CR_FINISHED_A:\n\t\tcase SSL3_ST_CR_FINISHED_B:\n\t\t\tret=ssl3_get_finished(s,SSL3_ST_CR_FINISHED_A,\n\t\t\t\tSSL3_ST_CR_FINISHED_B);\n\t\t\tif (ret <= 0) goto end;\n\t\t\tif (s->hit)\n\t\t\t\ts->state=SSL3_ST_CW_CHANGE_A;\n\t\t\telse\n\t\t\t\ts->state=SSL_ST_OK;\n\t\t\ts->init_num=0;\n\t\t\tbreak;\n\t\tcase SSL3_ST_CW_FLUSH:\n\t\t\tnum1=BIO_ctrl(s->wbio,BIO_CTRL_INFO,0,NULL);\n\t\t\tif (num1 > 0)\n\t\t\t\t{\n\t\t\t\ts->rwstate=SSL_WRITING;\n\t\t\t\tnum1=BIO_flush(s->wbio);\n\t\t\t\tif (num1 <= 0) { ret= -1; goto end; }\n\t\t\t\ts->rwstate=SSL_NOTHING;\n\t\t\t\t}\n\t\t\ts->state=s->s3->tmp.next_state;\n\t\t\tbreak;\n\t\tcase SSL_ST_OK:\n\t\t\tssl3_cleanup_key_block(s);\n#if 0\n\t\t\tif (s->init_buf != NULL)\n\t\t\t\t{\n\t\t\t\tBUF_MEM_free(s->init_buf);\n\t\t\t\ts->init_buf=NULL;\n\t\t\t\t}\n#endif\n\t\t\tif (!(s->s3->flags & SSL3_FLAGS_POP_BUFFER))\n\t\t\t\tssl_free_wbio_buffer(s);\n\t\t\ts->init_num=0;\n\t\t\ts->new_session=0;\n\t\t\tssl_update_cache(s,SSL_SESS_CACHE_CLIENT);\n\t\t\tif (s->hit) s->ctx->stats.sess_hit++;\n\t\t\tret=1;\n\t\t\ts->handshake_func=dtls1_connect;\n\t\t\ts->ctx->stats.sess_connect_good++;\n\t\t\tif (cb != NULL) cb(s,SSL_CB_HANDSHAKE_DONE,1);\n\t\t\ts->d1->handshake_read_seq = 0;\n\t\t\tgoto end;\n\t\tdefault:\n\t\t\tSSLerr(SSL_F_DTLS1_CONNECT,SSL_R_UNKNOWN_STATE);\n\t\t\tret= -1;\n\t\t\tgoto end;\n\t\t\t}\n\t\tif (!s->s3->tmp.reuse_message && !skip)\n\t\t\t{\n\t\t\tif (s->debug)\n\t\t\t\t{\n\t\t\t\tif ((ret=BIO_flush(s->wbio)) <= 0)\n\t\t\t\t\tgoto end;\n\t\t\t\t}\n\t\t\tif ((cb != NULL) && (s->state != state))\n\t\t\t\t{\n\t\t\t\tnew_state=s->state;\n\t\t\t\ts->state=state;\n\t\t\t\tcb(s,SSL_CB_CONNECT_LOOP,1);\n\t\t\t\ts->state=new_state;\n\t\t\t\t}\n\t\t\t}\n\t\tskip=0;\n\t\t}\nend:\n\ts->in_handshake--;\n\tif (buf != NULL)\n\t\tBUF_MEM_free(buf);\n\tif (cb != NULL)\n\t\tcb(s,SSL_CB_CONNECT_EXIT,ret);\n\treturn(ret);\n\t}', 'int ssl3_get_server_hello(SSL *s)\n\t{\n\tSTACK_OF(SSL_CIPHER) *sk;\n\tSSL_CIPHER *c;\n\tunsigned char *p,*d;\n\tint i,al,ok;\n\tunsigned int j;\n\tlong n;\n#ifndef OPENSSL_NO_COMP\n\tSSL_COMP *comp;\n#endif\n\tn=s->method->ssl_get_message(s,\n\t\tSSL3_ST_CR_SRVR_HELLO_A,\n\t\tSSL3_ST_CR_SRVR_HELLO_B,\n\t\t-1,\n\t\t300,\n\t\t&ok);\n\tif (!ok) return((int)n);\n\tif ( SSL_version(s) == DTLS1_VERSION)\n\t\t{\n\t\tif ( s->s3->tmp.message_type == DTLS1_MT_HELLO_VERIFY_REQUEST)\n\t\t\t{\n\t\t\tif ( s->d1->send_cookie == 0)\n\t\t\t\t{\n\t\t\t\ts->s3->tmp.reuse_message = 1;\n\t\t\t\treturn 1;\n\t\t\t\t}\n\t\t\telse\n\t\t\t\t{\n\t\t\t\tal=SSL_AD_UNEXPECTED_MESSAGE;\n\t\t\t\tSSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_BAD_MESSAGE_TYPE);\n\t\t\t\tgoto f_err;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\tif ( s->s3->tmp.message_type != SSL3_MT_SERVER_HELLO)\n\t\t{\n\t\tal=SSL_AD_UNEXPECTED_MESSAGE;\n\t\tSSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_BAD_MESSAGE_TYPE);\n\t\tgoto f_err;\n\t\t}\n\td=p=(unsigned char *)s->init_msg;\n\tif ((p[0] != (s->version>>8)) || (p[1] != (s->version&0xff)))\n\t\t{\n\t\tSSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_WRONG_SSL_VERSION);\n\t\ts->version=(s->version&0xff00)|p[1];\n\t\tal=SSL_AD_PROTOCOL_VERSION;\n\t\tgoto f_err;\n\t\t}\n\tp+=2;\n\tmemcpy(s->s3->server_random,p,SSL3_RANDOM_SIZE);\n\tp+=SSL3_RANDOM_SIZE;\n\tj= *(p++);\n\tif ((j > sizeof s->session->session_id) || (j > SSL3_SESSION_ID_SIZE))\n\t\t{\n\t\tal=SSL_AD_ILLEGAL_PARAMETER;\n\t\tSSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_SSL3_SESSION_ID_TOO_LONG);\n\t\tgoto f_err;\n\t\t}\n\tif (j != 0 && j == s->session->session_id_length\n\t && memcmp(p,s->session->session_id,j) == 0)\n\t {\n\t if(s->sid_ctx_length != s->session->sid_ctx_length\n\t || memcmp(s->session->sid_ctx,s->sid_ctx,s->sid_ctx_length))\n\t\t{\n\t\tal=SSL_AD_ILLEGAL_PARAMETER;\n\t\tSSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_ATTEMPT_TO_REUSE_SESSION_IN_DIFFERENT_CONTEXT);\n\t\tgoto f_err;\n\t\t}\n\t s->hit=1;\n\t }\n\telse\n\t\t{\n\t\ts->hit=0;\n\t\tif (s->session->session_id_length > 0)\n\t\t\t{\n\t\t\tif (!ssl_get_new_session(s,0))\n\t\t\t\t{\n\t\t\t\tal=SSL_AD_INTERNAL_ERROR;\n\t\t\t\tgoto f_err;\n\t\t\t\t}\n\t\t\t}\n\t\ts->session->session_id_length=j;\n\t\tmemcpy(s->session->session_id,p,j);\n\t\t}\n\tp+=j;\n\tc=ssl_get_cipher_by_char(s,p);\n\tif (c == NULL)\n\t\t{\n\t\tal=SSL_AD_ILLEGAL_PARAMETER;\n\t\tSSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_UNKNOWN_CIPHER_RETURNED);\n\t\tgoto f_err;\n\t\t}\n\tp+=ssl_put_cipher_by_char(s,NULL,NULL);\n\tsk=ssl_get_ciphers_by_id(s);\n\ti=sk_SSL_CIPHER_find(sk,c);\n\tif (i < 0)\n\t\t{\n\t\tal=SSL_AD_ILLEGAL_PARAMETER;\n\t\tSSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_WRONG_CIPHER_RETURNED);\n\t\tgoto f_err;\n\t\t}\n\tif (s->session->cipher)\n\t\ts->session->cipher_id = s->session->cipher->id;\n\tif (s->hit && (s->session->cipher_id != c->id))\n\t\t{\n\t\tif (!(s->options &\n\t\t\tSSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG))\n\t\t\t{\n\t\t\tal=SSL_AD_ILLEGAL_PARAMETER;\n\t\t\tSSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_OLD_SESSION_CIPHER_NOT_RETURNED);\n\t\t\tgoto f_err;\n\t\t\t}\n\t\t}\n\ts->s3->tmp.new_cipher=c;\n#ifdef OPENSSL_NO_COMP\n\tif (*(p++) != 0)\n\t\t{\n\t\tal=SSL_AD_ILLEGAL_PARAMETER;\n\t\tSSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_UNSUPPORTED_COMPRESSION_ALGORITHM);\n\t\tgoto f_err;\n\t\t}\n#else\n\tj= *(p++);\n\tif ((j == 0) || (s->options & SSL_OP_NO_COMPRESSION))\n\t\tcomp=NULL;\n\telse\n\t\tcomp=ssl3_comp_find(s->ctx->comp_methods,j);\n\tif ((j != 0) && (comp == NULL))\n\t\t{\n\t\tal=SSL_AD_ILLEGAL_PARAMETER;\n\t\tSSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_UNSUPPORTED_COMPRESSION_ALGORITHM);\n\t\tgoto f_err;\n\t\t}\n\telse\n\t\t{\n\t\ts->s3->tmp.new_compression=comp;\n\t\t}\n#endif\n#ifndef OPENSSL_NO_TLSEXT\n\tif (s->version > SSL3_VERSION)\n\t\t{\n\t\tif (!ssl_parse_serverhello_tlsext(s,&p,d,n, &al))\n\t\t\t{\n\t\t\tSSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_PARSE_TLS_EXT);\n\t\t\tgoto f_err;\n\t\t\t}\n\t\tif (ssl_check_tlsext(s,0) <= 0)\n\t\t\t{\n\t\t\tSSLerr(SSL_F_SSL3_CONNECT,SSL_R_SERVERHELLO_TLS_EXT);\n\t\t\t\tgoto err;\n\t\t\t}\n\t\t}\n#endif\n\tif (p != (d+n))\n\t\t{\n\t\tal=SSL_AD_DECODE_ERROR;\n\t\tSSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_BAD_PACKET_LENGTH);\n\t\tgoto err;\n\t\t}\n\treturn(1);\nf_err:\n\tssl3_send_alert(s,SSL3_AL_FATAL,al);\nerr:\n\treturn(-1);\n\t}', 'int ssl_check_tlsext(SSL *s, int is_server)\n\t{\n\tint ret=SSL_TLSEXT_ERR_NOACK;\n\tint al = SSL_AD_UNRECOGNIZED_NAME;\n\tif (s->ctx != NULL && s->ctx->tlsext_servername_callback != 0)\n\t\tret = s->ctx->tlsext_servername_callback(s, &al, s->ctx->tlsext_servername_arg);\n\telse if (s->initial_ctx != NULL && s->initial_ctx->tlsext_servername_callback != 0)\n\t\tret = s->initial_ctx->tlsext_servername_callback(s, &al, s->initial_ctx->tlsext_servername_arg);\n\tswitch (ret) {\n\t\tcase SSL_TLSEXT_ERR_ALERT_FATAL:\n\t\t\tssl3_send_alert(s,SSL3_AL_FATAL,al);\n\t\t\treturn -1;\n\t\tcase SSL_TLSEXT_ERR_ALERT_WARNING:\n\t\t\tssl3_send_alert(s,SSL3_AL_WARNING,al);\n\t\t\treturn 1;\n\t\tcase SSL_TLSEXT_ERR_NOACK:\n\t\t\ts->servername_done=0;\n\t\t\tdefault:\n\t\treturn 1;\n\t}\n}', 'void ssl3_send_alert(SSL *s, int level, int desc)\n\t{\n\tdesc=s->method->ssl3_enc->alert_value(desc);\n\tif (s->version == SSL3_VERSION && desc == SSL_AD_PROTOCOL_VERSION)\n\t\tdesc = SSL_AD_HANDSHAKE_FAILURE;\n\tif (desc < 0) return;\n\tif ((level == 2) && (s->session != NULL))\n\t\tSSL_CTX_remove_session(s->ctx,s->session);\n\ts->s3->alert_dispatch=1;\n\ts->s3->send_alert[0]=level;\n\ts->s3->send_alert[1]=desc;\n\tif (s->s3->wbuf.left == 0)\n\t\ts->method->ssl_dispatch_alert(s);\n\t}', 'int SSL_CTX_remove_session(SSL_CTX *ctx, SSL_SESSION *c)\n{\n\treturn remove_session_lock(ctx, c, 1);\n}', 'static int remove_session_lock(SSL_CTX *ctx, SSL_SESSION *c, int lck)\n\t{\n\tSSL_SESSION *r;\n\tint ret=0;\n\tif ((c != NULL) && (c->session_id_length != 0))\n\t\t{\n\t\tif(lck) CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX);\n\t\tif ((r = (SSL_SESSION *)lh_retrieve(ctx->sessions,c)) == c)\n\t\t\t{\n\t\t\tret=1;\n\t\t\tr=(SSL_SESSION *)lh_delete(ctx->sessions,c);\n\t\t\tSSL_SESSION_list_remove(ctx,c);\n\t\t\t}\n\t\tif(lck) CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX);\n\t\tif (ret)\n\t\t\t{\n\t\t\tr->not_resumable=1;\n\t\t\tif (ctx->remove_session_cb != NULL)\n\t\t\t\tctx->remove_session_cb(ctx,r);\n\t\t\tSSL_SESSION_free(r);\n\t\t\t}\n\t\t}\n\telse\n\t\tret=0;\n\treturn(ret);\n\t}', 'void *lh_delete(LHASH *lh, const void *data)\n\t{\n\tunsigned long hash;\n\tLHASH_NODE *nn,**rn;\n\tvoid *ret;\n\tlh->error=0;\n\trn=getrn(lh,data,&hash);\n\tif (*rn == NULL)\n\t\t{\n\t\tlh->num_no_delete++;\n\t\treturn(NULL);\n\t\t}\n\telse\n\t\t{\n\t\tnn= *rn;\n\t\t*rn=nn->next;\n\t\tret=nn->data;\n\t\tOPENSSL_free(nn);\n\t\tlh->num_delete++;\n\t\t}\n\tlh->num_items--;\n\tif ((lh->num_nodes > MIN_NODES) &&\n\t\t(lh->down_load >= (lh->num_items*LH_LOAD_MULT/lh->num_nodes)))\n\t\tcontract(lh);\n\treturn(ret);\n\t}'] |
25,942 | 0 | https://github.com/openssl/openssl/blob/0f3e6045898e9aa5d0249e61c874b1f153ae54fa/crypto/lhash/lhash.c/#L359 | static void contract(LHASH *lh)
{
LHASH_NODE **n,*n1,*np;
np=lh->b[lh->p+lh->pmax-1];
lh->b[lh->p+lh->pmax-1]=NULL;
if (lh->p == 0)
{
n=(LHASH_NODE **)Realloc((char *)lh->b,
(unsigned int)(sizeof(LHASH_NODE *)*lh->pmax));
if (n == NULL)
{
lh->error++;
return;
}
lh->num_contract_reallocs++;
lh->num_alloc_nodes/=2;
lh->pmax/=2;
lh->p=lh->pmax-1;
lh->b=n;
}
else
lh->p--;
lh->num_nodes--;
lh->num_contracts++;
n1=lh->b[(int)lh->p];
if (n1 == NULL)
lh->b[(int)lh->p]=np;
else
{
while (n1->next != NULL)
n1=n1->next;
n1->next=np;
}
} | ['int ssl3_accept(SSL *s)\n\t{\n\tBUF_MEM *buf;\n\tunsigned long l,Time=time(NULL);\n\tvoid (*cb)()=NULL;\n\tlong num1;\n\tint ret= -1;\n\tCERT *ct;\n\tint new_state,state,skip=0;\n\tRAND_seed(&Time,sizeof(Time));\n\tERR_clear_error();\n\tclear_sys_error();\n\tif (s->info_callback != NULL)\n\t\tcb=s->info_callback;\n\telse if (s->ctx->info_callback != NULL)\n\t\tcb=s->ctx->info_callback;\n\tif (!SSL_in_init(s) || SSL_in_before(s)) SSL_clear(s);\n\ts->in_handshake++;\n#ifdef undef\n\tif (((s->session == NULL) || (s->session->cert == NULL)) &&\n\t\t(s->cert == NULL))\n\t\t{\n\t\tSSLerr(SSL_F_SSL3_ACCEPT,SSL_R_NO_CERTIFICATE_SET);\n\t\tret= -1;\n\t\tgoto end;\n\t\t}\n#endif\n\tfor (;;)\n\t\t{\n\t\tstate=s->state;\n\t\tswitch (s->state)\n\t\t\t{\n\t\tcase SSL_ST_RENEGOTIATE:\n\t\t\ts->new_session=1;\n\t\tcase SSL_ST_BEFORE:\n\t\tcase SSL_ST_ACCEPT:\n\t\tcase SSL_ST_BEFORE|SSL_ST_ACCEPT:\n\t\tcase SSL_ST_OK|SSL_ST_ACCEPT:\n\t\t\ts->server=1;\n\t\t\tif (cb != NULL) cb(s,SSL_CB_HANDSHAKE_START,1);\n\t\t\tif ((s->version>>8) != 3)\n\t\t\t\tabort();\n\t\t\ts->type=SSL_ST_ACCEPT;\n\t\t\tif (s->init_buf == NULL)\n\t\t\t\t{\n\t\t\t\tif ((buf=BUF_MEM_new()) == NULL)\n\t\t\t\t\t{\n\t\t\t\t\tret= -1;\n\t\t\t\t\tgoto end;\n\t\t\t\t\t}\n\t\t\t\tif (!BUF_MEM_grow(buf,SSL3_RT_MAX_PLAIN_LENGTH))\n\t\t\t\t\t{\n\t\t\t\t\tret= -1;\n\t\t\t\t\tgoto end;\n\t\t\t\t\t}\n\t\t\t\ts->init_buf=buf;\n\t\t\t\t}\n\t\t\tif (!ssl3_setup_buffers(s))\n\t\t\t\t{\n\t\t\t\tret= -1;\n\t\t\t\tgoto end;\n\t\t\t\t}\n\t\t\tif (!ssl_init_wbio_buffer(s,1)) { ret= -1; goto end; }\n\t\t\ts->init_num=0;\n\t\t\tif (s->state != SSL_ST_RENEGOTIATE)\n\t\t\t\t{\n\t\t\t\ts->state=SSL3_ST_SR_CLNT_HELLO_A;\n\t\t\t\tssl3_init_finished_mac(s);\n\t\t\t\ts->ctx->stats.sess_accept++;\n\t\t\t\t}\n\t\t\telse\n\t\t\t\t{\n\t\t\t\ts->ctx->stats.sess_accept_renegotiate++;\n\t\t\t\ts->state=SSL3_ST_SW_HELLO_REQ_A;\n\t\t\t\t}\n\t\t\tbreak;\n\t\tcase SSL3_ST_SW_HELLO_REQ_A:\n\t\tcase SSL3_ST_SW_HELLO_REQ_B:\n\t\t\ts->shutdown=0;\n\t\t\tret=ssl3_send_hello_request(s);\n\t\t\tif (ret <= 0) goto end;\n\t\t\ts->s3->tmp.next_state=SSL3_ST_SW_HELLO_REQ_C;\n\t\t\ts->state=SSL3_ST_SW_FLUSH;\n\t\t\ts->init_num=0;\n\t\t\tssl3_init_finished_mac(s);\n\t\t\tbreak;\n\t\tcase SSL3_ST_SW_HELLO_REQ_C:\n\t\t\ts->state=SSL_ST_OK;\n\t\t\tret=1;\n\t\t\tgoto end;\n\t\tcase SSL3_ST_SR_CLNT_HELLO_A:\n\t\tcase SSL3_ST_SR_CLNT_HELLO_B:\n\t\tcase SSL3_ST_SR_CLNT_HELLO_C:\n\t\t\ts->shutdown=0;\n\t\t\tret=ssl3_get_client_hello(s);\n\t\t\tif (ret <= 0) goto end;\n\t\t\ts->state=SSL3_ST_SW_SRVR_HELLO_A;\n\t\t\ts->init_num=0;\n\t\t\tbreak;\n\t\tcase SSL3_ST_SW_SRVR_HELLO_A:\n\t\tcase SSL3_ST_SW_SRVR_HELLO_B:\n\t\t\tret=ssl3_send_server_hello(s);\n\t\t\tif (ret <= 0) goto end;\n\t\t\tif (s->hit)\n\t\t\t\ts->state=SSL3_ST_SW_CHANGE_A;\n\t\t\telse\n\t\t\t\ts->state=SSL3_ST_SW_CERT_A;\n\t\t\ts->init_num=0;\n\t\t\tbreak;\n\t\tcase SSL3_ST_SW_CERT_A:\n\t\tcase SSL3_ST_SW_CERT_B:\n\t\t\tif (!(s->s3->tmp.new_cipher->algorithms & SSL_aNULL))\n\t\t\t\t{\n\t\t\t\tret=ssl3_send_server_certificate(s);\n\t\t\t\tif (ret <= 0) goto end;\n\t\t\t\t}\n\t\t\telse\n\t\t\t\tskip=1;\n\t\t\ts->state=SSL3_ST_SW_KEY_EXCH_A;\n\t\t\ts->init_num=0;\n\t\t\tbreak;\n\t\tcase SSL3_ST_SW_KEY_EXCH_A:\n\t\tcase SSL3_ST_SW_KEY_EXCH_B:\n\t\t\tl=s->s3->tmp.new_cipher->algorithms;\n\t\t\tif (s->session->cert == NULL)\n\t\t\t\t{\n\t\t\t\tif (s->cert != NULL)\n\t\t\t\t\t{\n\t\t\t\t\tCRYPTO_add(&s->cert->references,1,CRYPTO_LOCK_SSL_CERT);\n\t\t\t\t\ts->session->cert=s->cert;\n\t\t\t\t\t}\n\t\t\t\telse\n\t\t\t\t\t{\n\t\t\t\t\tCRYPTO_add(&s->ctx->default_cert->references,1,CRYPTO_LOCK_SSL_CERT);\n\t\t\t\t\ts->session->cert=s->ctx->default_cert;\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\tct=s->session->cert;\n\t\t\tif (s->options & SSL_OP_EPHEMERAL_RSA)\n\t\t\t\ts->s3->tmp.use_rsa_tmp=1;\n\t\t\telse\n\t\t\t\ts->s3->tmp.use_rsa_tmp=0;\n\t\t\tif (s->s3->tmp.use_rsa_tmp\n\t\t\t || (l & (SSL_DH|SSL_kFZA))\n\t\t\t || ((l & SSL_kRSA)\n\t\t\t\t&& (ct->pkeys[SSL_PKEY_RSA_ENC].privatekey == NULL\n\t\t\t\t || (SSL_IS_EXPORT(l)\n\t\t\t\t\t&& EVP_PKEY_size(ct->pkeys[SSL_PKEY_RSA_ENC].privatekey)*8 > SSL_EXPORT_PKEYLENGTH(l)\n\t\t\t\t\t)\n\t\t\t\t )\n\t\t\t\t)\n\t\t\t )\n\t\t\t\t{\n\t\t\t\tret=ssl3_send_server_key_exchange(s);\n\t\t\t\tif (ret <= 0) goto end;\n\t\t\t\t}\n\t\t\telse\n\t\t\t\tskip=1;\n\t\t\ts->state=SSL3_ST_SW_CERT_REQ_A;\n\t\t\ts->init_num=0;\n\t\t\tbreak;\n\t\tcase SSL3_ST_SW_CERT_REQ_A:\n\t\tcase SSL3_ST_SW_CERT_REQ_B:\n\t\t\tif (!(s->verify_mode & SSL_VERIFY_PEER) ||\n\t\t\t\t((s->session->peer != NULL) &&\n\t\t\t\t (s->verify_mode & SSL_VERIFY_CLIENT_ONCE)))\n\t\t\t\t{\n\t\t\t\tskip=1;\n\t\t\t\ts->s3->tmp.cert_request=0;\n\t\t\t\ts->state=SSL3_ST_SW_SRVR_DONE_A;\n\t\t\t\t}\n\t\t\telse\n\t\t\t\t{\n\t\t\t\ts->s3->tmp.cert_request=1;\n\t\t\t\tret=ssl3_send_certificate_request(s);\n\t\t\t\tif (ret <= 0) goto end;\n\t\t\t\ts->state=SSL3_ST_SW_SRVR_DONE_A;\n\t\t\t\ts->init_num=0;\n\t\t\t\t}\n\t\t\tbreak;\n\t\tcase SSL3_ST_SW_SRVR_DONE_A:\n\t\tcase SSL3_ST_SW_SRVR_DONE_B:\n\t\t\tret=ssl3_send_server_done(s);\n\t\t\tif (ret <= 0) goto end;\n\t\t\ts->s3->tmp.next_state=SSL3_ST_SR_CERT_A;\n\t\t\ts->state=SSL3_ST_SW_FLUSH;\n\t\t\ts->init_num=0;\n\t\t\tbreak;\n\t\tcase SSL3_ST_SW_FLUSH:\n\t\t\tnum1=BIO_ctrl(s->wbio,BIO_CTRL_INFO,0,NULL);\n\t\t\tif (num1 > 0)\n\t\t\t\t{\n\t\t\t\ts->rwstate=SSL_WRITING;\n\t\t\t\tnum1=BIO_flush(s->wbio);\n\t\t\t\tif (num1 <= 0) { ret= -1; goto end; }\n\t\t\t\ts->rwstate=SSL_NOTHING;\n\t\t\t\t}\n\t\t\ts->state=s->s3->tmp.next_state;\n\t\t\tbreak;\n\t\tcase SSL3_ST_SR_CERT_A:\n\t\tcase SSL3_ST_SR_CERT_B:\n\t\t\tret=ssl3_get_client_certificate(s);\n\t\t\tif (ret <= 0) goto end;\n\t\t\ts->init_num=0;\n\t\t\ts->state=SSL3_ST_SR_KEY_EXCH_A;\n\t\t\tbreak;\n\t\tcase SSL3_ST_SR_KEY_EXCH_A:\n\t\tcase SSL3_ST_SR_KEY_EXCH_B:\n\t\t\tret=ssl3_get_client_key_exchange(s);\n\t\t\tif (ret <= 0) goto end;\n\t\t\ts->state=SSL3_ST_SR_CERT_VRFY_A;\n\t\t\ts->init_num=0;\n\t\t\ts->method->ssl3_enc->cert_verify_mac(s,\n\t\t\t\t&(s->s3->finish_dgst1),\n\t\t\t\t&(s->s3->tmp.finish_md[0]));\n\t\t\ts->method->ssl3_enc->cert_verify_mac(s,\n\t\t\t\t&(s->s3->finish_dgst2),\n\t\t\t\t&(s->s3->tmp.finish_md[MD5_DIGEST_LENGTH]));\n\t\t\tbreak;\n\t\tcase SSL3_ST_SR_CERT_VRFY_A:\n\t\tcase SSL3_ST_SR_CERT_VRFY_B:\n\t\t\tret=ssl3_get_cert_verify(s);\n\t\t\tif (ret <= 0) goto end;\n\t\t\ts->state=SSL3_ST_SR_FINISHED_A;\n\t\t\ts->init_num=0;\n\t\t\tbreak;\n\t\tcase SSL3_ST_SR_FINISHED_A:\n\t\tcase SSL3_ST_SR_FINISHED_B:\n\t\t\tret=ssl3_get_finished(s,SSL3_ST_SR_FINISHED_A,\n\t\t\t\tSSL3_ST_SR_FINISHED_B);\n\t\t\tif (ret <= 0) goto end;\n\t\t\tif (s->hit)\n\t\t\t\ts->state=SSL_ST_OK;\n\t\t\telse\n\t\t\t\ts->state=SSL3_ST_SW_CHANGE_A;\n\t\t\ts->init_num=0;\n\t\t\tbreak;\n\t\tcase SSL3_ST_SW_CHANGE_A:\n\t\tcase SSL3_ST_SW_CHANGE_B:\n\t\t\ts->session->cipher=s->s3->tmp.new_cipher;\n\t\t\tif (!s->method->ssl3_enc->setup_key_block(s))\n\t\t\t\t{ ret= -1; goto end; }\n\t\t\tret=ssl3_send_change_cipher_spec(s,\n\t\t\t\tSSL3_ST_SW_CHANGE_A,SSL3_ST_SW_CHANGE_B);\n\t\t\tif (ret <= 0) goto end;\n\t\t\ts->state=SSL3_ST_SW_FINISHED_A;\n\t\t\ts->init_num=0;\n\t\t\tif (!s->method->ssl3_enc->change_cipher_state(s,\n\t\t\t\tSSL3_CHANGE_CIPHER_SERVER_WRITE))\n\t\t\t\t{\n\t\t\t\tret= -1;\n\t\t\t\tgoto end;\n\t\t\t\t}\n\t\t\tbreak;\n\t\tcase SSL3_ST_SW_FINISHED_A:\n\t\tcase SSL3_ST_SW_FINISHED_B:\n\t\t\tret=ssl3_send_finished(s,\n\t\t\t\tSSL3_ST_SW_FINISHED_A,SSL3_ST_SW_FINISHED_B,\n\t\t\t\ts->method->ssl3_enc->server_finished,\n\t\t\t\ts->method->ssl3_enc->server_finished_len);\n\t\t\tif (ret <= 0) goto end;\n\t\t\ts->state=SSL3_ST_SW_FLUSH;\n\t\t\tif (s->hit)\n\t\t\t\ts->s3->tmp.next_state=SSL3_ST_SR_FINISHED_A;\n\t\t\telse\n\t\t\t\ts->s3->tmp.next_state=SSL_ST_OK;\n\t\t\ts->init_num=0;\n\t\t\tbreak;\n\t\tcase SSL_ST_OK:\n\t\t\tssl3_cleanup_key_block(s);\n\t\t\tBUF_MEM_free(s->init_buf);\n\t\t\ts->init_buf=NULL;\n\t\t\tssl_free_wbio_buffer(s);\n\t\t\ts->new_session=0;\n\t\t\ts->init_num=0;\n\t\t\tssl_update_cache(s,SSL_SESS_CACHE_SERVER);\n\t\t\ts->ctx->stats.sess_accept_good++;\n\t\t\ts->handshake_func=ssl3_accept;\n\t\t\tret=1;\n\t\t\tif (cb != NULL) cb(s,SSL_CB_HANDSHAKE_DONE,1);\n\t\t\tgoto end;\n\t\tdefault:\n\t\t\tSSLerr(SSL_F_SSL3_ACCEPT,SSL_R_UNKNOWN_STATE);\n\t\t\tret= -1;\n\t\t\tgoto end;\n\t\t\t}\n\t\tif (!s->s3->tmp.reuse_message && !skip)\n\t\t\t{\n\t\t\tif (s->debug)\n\t\t\t\t{\n\t\t\t\tif ((ret=BIO_flush(s->wbio)) <= 0)\n\t\t\t\t\tgoto end;\n\t\t\t\t}\n\t\t\tif ((cb != NULL) && (s->state != state))\n\t\t\t\t{\n\t\t\t\tnew_state=s->state;\n\t\t\t\ts->state=state;\n\t\t\t\tcb(s,SSL_CB_ACCEPT_LOOP,1);\n\t\t\t\ts->state=new_state;\n\t\t\t\t}\n\t\t\t}\n\t\tskip=0;\n\t\t}\nend:\n\tif (cb != NULL)\n\t\tcb(s,SSL_CB_ACCEPT_EXIT,ret);\n\ts->in_handshake--;\n\treturn(ret);\n\t}', 'static int ssl3_send_server_key_exchange(SSL *s)\n\t{\n#ifndef NO_RSA\n\tunsigned char *q;\n\tint j,num;\n\tRSA *rsa;\n\tunsigned char md_buf[MD5_DIGEST_LENGTH+SHA_DIGEST_LENGTH];\n#endif\n#ifndef NO_DH\n\tDH *dh,*dhp;\n#endif\n\tEVP_PKEY *pkey;\n\tunsigned char *p,*d;\n\tint al,i;\n\tunsigned long type;\n\tint n;\n\tCERT *cert;\n\tBIGNUM *r[4];\n\tint nr[4],kn;\n\tBUF_MEM *buf;\n\tEVP_MD_CTX md_ctx;\n\tif (s->state == SSL3_ST_SW_KEY_EXCH_A)\n\t\t{\n\t\ttype=s->s3->tmp.new_cipher->algorithms & SSL_MKEY_MASK;\n\t\tcert=s->session->cert;\n\t\tbuf=s->init_buf;\n\t\tr[0]=r[1]=r[2]=r[3]=NULL;\n\t\tn=0;\n#ifndef NO_RSA\n\t\tif (type & SSL_kRSA)\n\t\t\t{\n\t\t\trsa=cert->rsa_tmp;\n\t\t\tif ((rsa == NULL) && (s->ctx->default_cert->rsa_tmp_cb != NULL))\n\t\t\t\t{\n\t\t\t\trsa=s->ctx->default_cert->rsa_tmp_cb(s,\n\t\t\t\t SSL_C_IS_EXPORT(s->s3->tmp.new_cipher),\n\t\t\t\t SSL_C_EXPORT_PKEYLENGTH(s->s3->tmp.new_cipher));\n\t\t\t\tCRYPTO_add(&rsa->references,1,CRYPTO_LOCK_RSA);\n\t\t\t\tcert->rsa_tmp=rsa;\n\t\t\t\t}\n\t\t\tif (rsa == NULL)\n\t\t\t\t{\n\t\t\t\tal=SSL_AD_HANDSHAKE_FAILURE;\n\t\t\t\tSSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,SSL_R_MISSING_TMP_RSA_KEY);\n\t\t\t\tgoto f_err;\n\t\t\t\t}\n\t\t\tr[0]=rsa->n;\n\t\t\tr[1]=rsa->e;\n\t\t\ts->s3->tmp.use_rsa_tmp=1;\n\t\t\t}\n\t\telse\n#endif\n#ifndef NO_DH\n\t\t\tif (type & SSL_kEDH)\n\t\t\t{\n\t\t\tdhp=cert->dh_tmp;\n\t\t\tif ((dhp == NULL) && (cert->dh_tmp_cb != NULL))\n\t\t\t\tdhp=cert->dh_tmp_cb(s,\n\t\t\t\t !SSL_C_IS_EXPORT(s->s3->tmp.new_cipher),\n\t\t\t\t SSL_C_EXPORT_PKEYLENGTH(s->s3->tmp.new_cipher));\n\t\t\tif (dhp == NULL)\n\t\t\t\t{\n\t\t\t\tal=SSL_AD_HANDSHAKE_FAILURE;\n\t\t\t\tSSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,SSL_R_MISSING_TMP_DH_KEY);\n\t\t\t\tgoto f_err;\n\t\t\t\t}\n\t\t\tif ((dh=DHparams_dup(dhp)) == NULL)\n\t\t\t\t{\n\t\t\t\tSSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,ERR_R_DH_LIB);\n\t\t\t\tgoto err;\n\t\t\t\t}\n\t\t\ts->s3->tmp.dh=dh;\n\t\t\tif ((dhp->pub_key == NULL ||\n\t\t\t dhp->priv_key == NULL ||\n\t\t\t (s->options & SSL_OP_SINGLE_DH_USE)))\n\t\t\t\t{\n\t\t\t\tif(!DH_generate_key(dh))\n\t\t\t\t {\n\t\t\t\t SSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,\n\t\t\t\t\t ERR_R_DH_LIB);\n\t\t\t\t goto err;\n\t\t\t\t }\n\t\t\t\t}\n\t\t\telse\n\t\t\t\t{\n\t\t\t\tdh->pub_key=BN_dup(dhp->pub_key);\n\t\t\t\tdh->priv_key=BN_dup(dhp->priv_key);\n\t\t\t\tif ((dh->pub_key == NULL) ||\n\t\t\t\t\t(dh->priv_key == NULL))\n\t\t\t\t\t{\n\t\t\t\t\tSSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,ERR_R_DH_LIB);\n\t\t\t\t\tgoto err;\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\tr[0]=dh->p;\n\t\t\tr[1]=dh->g;\n\t\t\tr[2]=dh->pub_key;\n\t\t\t}\n\t\telse\n#endif\n\t\t\t{\n\t\t\tal=SSL_AD_HANDSHAKE_FAILURE;\n\t\t\tSSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,SSL_R_UNKNOWN_KEY_EXCHANGE_TYPE);\n\t\t\tgoto f_err;\n\t\t\t}\n\t\tfor (i=0; r[i] != NULL; i++)\n\t\t\t{\n\t\t\tnr[i]=BN_num_bytes(r[i]);\n\t\t\tn+=2+nr[i];\n\t\t\t}\n\t\tif (!(s->s3->tmp.new_cipher->algorithms & SSL_aNULL))\n\t\t\t{\n\t\t\tif ((pkey=ssl_get_sign_pkey(s,s->s3->tmp.new_cipher))\n\t\t\t\t== NULL)\n\t\t\t\t{\n\t\t\t\tal=SSL_AD_DECODE_ERROR;\n\t\t\t\tgoto f_err;\n\t\t\t\t}\n\t\t\tkn=EVP_PKEY_size(pkey);\n\t\t\t}\n\t\telse\n\t\t\t{\n\t\t\tpkey=NULL;\n\t\t\tkn=0;\n\t\t\t}\n\t\tif (!BUF_MEM_grow(buf,n+4+kn))\n\t\t\t{\n\t\t\tSSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,ERR_LIB_BUF);\n\t\t\tgoto err;\n\t\t\t}\n\t\td=(unsigned char *)s->init_buf->data;\n\t\tp= &(d[4]);\n\t\tfor (i=0; r[i] != NULL; i++)\n\t\t\t{\n\t\t\ts2n(nr[i],p);\n\t\t\tBN_bn2bin(r[i],p);\n\t\t\tp+=nr[i];\n\t\t\t}\n\t\tif (pkey != NULL)\n\t\t\t{\n#ifndef NO_RSA\n\t\t\tif (pkey->type == EVP_PKEY_RSA)\n\t\t\t\t{\n\t\t\t\tq=md_buf;\n\t\t\t\tj=0;\n\t\t\t\tfor (num=2; num > 0; num--)\n\t\t\t\t\t{\n\t\t\t\t\tEVP_DigestInit(&md_ctx,(num == 2)\n\t\t\t\t\t\t?s->ctx->md5:s->ctx->sha1);\n\t\t\t\t\tEVP_DigestUpdate(&md_ctx,&(s->s3->client_random[0]),SSL3_RANDOM_SIZE);\n\t\t\t\t\tEVP_DigestUpdate(&md_ctx,&(s->s3->server_random[0]),SSL3_RANDOM_SIZE);\n\t\t\t\t\tEVP_DigestUpdate(&md_ctx,&(d[4]),n);\n\t\t\t\t\tEVP_DigestFinal(&md_ctx,q,\n\t\t\t\t\t\t(unsigned int *)&i);\n\t\t\t\t\tq+=i;\n\t\t\t\t\tj+=i;\n\t\t\t\t\t}\n\t\t\t\ti=RSA_private_encrypt(j,md_buf,&(p[2]),\n\t\t\t\t\tpkey->pkey.rsa,RSA_PKCS1_PADDING);\n\t\t\t\tif (i <= 0)\n\t\t\t\t\t{\n\t\t\t\t\tSSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,ERR_LIB_RSA);\n\t\t\t\t\tgoto err;\n\t\t\t\t\t}\n\t\t\t\ts2n(i,p);\n\t\t\t\tn+=i+2;\n\t\t\t\t}\n\t\t\telse\n#endif\n#if !defined(NO_DSA)\n\t\t\t\tif (pkey->type == EVP_PKEY_DSA)\n\t\t\t\t{\n\t\t\t\tEVP_SignInit(&md_ctx,EVP_dss1());\n\t\t\t\tEVP_SignUpdate(&md_ctx,&(s->s3->client_random[0]),SSL3_RANDOM_SIZE);\n\t\t\t\tEVP_SignUpdate(&md_ctx,&(s->s3->server_random[0]),SSL3_RANDOM_SIZE);\n\t\t\t\tEVP_SignUpdate(&md_ctx,&(d[4]),n);\n\t\t\t\tif (!EVP_SignFinal(&md_ctx,&(p[2]),\n\t\t\t\t\t(unsigned int *)&i,pkey))\n\t\t\t\t\t{\n\t\t\t\t\tSSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,ERR_LIB_DSA);\n\t\t\t\t\tgoto err;\n\t\t\t\t\t}\n\t\t\t\ts2n(i,p);\n\t\t\t\tn+=i+2;\n\t\t\t\t}\n\t\t\telse\n#endif\n\t\t\t\t{\n\t\t\t\tal=SSL_AD_HANDSHAKE_FAILURE;\n\t\t\t\tSSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,SSL_R_UNKNOWN_PKEY_TYPE);\n\t\t\t\tgoto f_err;\n\t\t\t\t}\n\t\t\t}\n\t\t*(d++)=SSL3_MT_SERVER_KEY_EXCHANGE;\n\t\tl2n3(n,d);\n\t\ts->init_num=n+4;\n\t\ts->init_off=0;\n\t\t}\n\treturn(ssl3_do_write(s,SSL3_RT_HANDSHAKE));\nf_err:\n\tssl3_send_alert(s,SSL3_AL_FATAL,al);\nerr:\n\treturn(-1);\n\t}', 'void ssl3_send_alert(SSL *s, int level, int desc)\n\t{\n\tdesc=s->method->ssl3_enc->alert_value(desc);\n\tif (desc < 0) return;\n\tif ((level == 2) && (s->session != NULL))\n\t\tSSL_CTX_remove_session(s->ctx,s->session);\n\ts->s3->alert_dispatch=1;\n\ts->s3->send_alert[0]=level;\n\ts->s3->send_alert[1]=desc;\n\tif (s->s3->wbuf.left == 0)\n\t\tssl3_dispatch_alert(s);\n\t}', 'int SSL_CTX_remove_session(SSL_CTX *ctx, SSL_SESSION *c)\n{\n\treturn remove_session_lock(ctx, c, 1);\n}', 'static int remove_session_lock(SSL_CTX *ctx, SSL_SESSION *c, int lck)\n\t{\n\tSSL_SESSION *r;\n\tint ret=0;\n\tif ((c != NULL) && (c->session_id_length != 0))\n\t\t{\n\t\tif(lck) CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX);\n\t\tr=(SSL_SESSION *)lh_delete(ctx->sessions,(char *)c);\n\t\tif (r != NULL)\n\t\t\t{\n\t\t\tret=1;\n\t\t\tSSL_SESSION_list_remove(ctx,c);\n\t\t\t}\n\t\tif(lck) CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX);\n\t\tif (ret)\n\t\t\t{\n\t\t\tr->not_resumable=1;\n\t\t\tif (ctx->remove_session_cb != NULL)\n\t\t\t\tctx->remove_session_cb(ctx,r);\n\t\t\tSSL_SESSION_free(r);\n\t\t\t}\n\t\t}\n\telse\n\t\tret=0;\n\treturn(ret);\n\t}', 'char *lh_delete(LHASH *lh, char *data)\n\t{\n\tunsigned long hash;\n\tLHASH_NODE *nn,**rn;\n\tchar *ret;\n\tlh->error=0;\n\trn=getrn(lh,data,&hash);\n\tif (*rn == NULL)\n\t\t{\n\t\tlh->num_no_delete++;\n\t\treturn(NULL);\n\t\t}\n\telse\n\t\t{\n\t\tnn= *rn;\n\t\t*rn=nn->next;\n\t\tret=nn->data;\n\t\tFree((char *)nn);\n\t\tlh->num_delete++;\n\t\t}\n\tlh->num_items--;\n\tif ((lh->num_nodes > MIN_NODES) &&\n\t\t(lh->down_load >= (lh->num_items*LH_LOAD_MULT/lh->num_nodes)))\n\t\tcontract(lh);\n\treturn(ret);\n\t}', 'static void contract(LHASH *lh)\n\t{\n\tLHASH_NODE **n,*n1,*np;\n\tnp=lh->b[lh->p+lh->pmax-1];\n\tlh->b[lh->p+lh->pmax-1]=NULL;\n\tif (lh->p == 0)\n\t\t{\n\t\tn=(LHASH_NODE **)Realloc((char *)lh->b,\n\t\t\t(unsigned int)(sizeof(LHASH_NODE *)*lh->pmax));\n\t\tif (n == NULL)\n\t\t\t{\n\t\t\tlh->error++;\n\t\t\treturn;\n\t\t\t}\n\t\tlh->num_contract_reallocs++;\n\t\tlh->num_alloc_nodes/=2;\n\t\tlh->pmax/=2;\n\t\tlh->p=lh->pmax-1;\n\t\tlh->b=n;\n\t\t}\n\telse\n\t\tlh->p--;\n\tlh->num_nodes--;\n\tlh->num_contracts++;\n\tn1=lh->b[(int)lh->p];\n\tif (n1 == NULL)\n\t\tlh->b[(int)lh->p]=np;\n\telse\n\t\t{\n\t\twhile (n1->next != NULL)\n\t\t\tn1=n1->next;\n\t\tn1->next=np;\n\t\t}\n\t}'] |
25,943 | 0 | https://github.com/libav/libav/blob/452a398fd6bdca3f301c5c8af3bc241bc16a777e/libavcodec/motion_est_template.c/#L795 | static int full_search(MpegEncContext * s, int *best, int dmin,
int src_index, int ref_index, int const penalty_factor,
int size, int h, int flags)
{
MotionEstContext * const c= &s->me;
me_cmp_func cmpf, chroma_cmpf;
LOAD_COMMON
LOAD_COMMON2
int map_generation= c->map_generation;
int x,y, d;
const int dia_size= c->dia_size&0xFF;
cmpf= s->dsp.me_cmp[size];
chroma_cmpf= s->dsp.me_cmp[size+1];
for(y=FFMAX(-dia_size, ymin); y<=FFMIN(dia_size,ymax); y++){
for(x=FFMAX(-dia_size, xmin); x<=FFMIN(dia_size,xmax); x++){
CHECK_MV(x, y);
}
}
x= best[0];
y= best[1];
d= dmin;
CHECK_CLIPPED_MV(x , y);
CHECK_CLIPPED_MV(x+1, y);
CHECK_CLIPPED_MV(x, y+1);
CHECK_CLIPPED_MV(x-1, y);
CHECK_CLIPPED_MV(x, y-1);
best[0]= x;
best[1]= y;
return d;
} | ['static int full_search(MpegEncContext * s, int *best, int dmin,\n int src_index, int ref_index, int const penalty_factor,\n int size, int h, int flags)\n{\n MotionEstContext * const c= &s->me;\n me_cmp_func cmpf, chroma_cmpf;\n LOAD_COMMON\n LOAD_COMMON2\n int map_generation= c->map_generation;\n int x,y, d;\n const int dia_size= c->dia_size&0xFF;\n cmpf= s->dsp.me_cmp[size];\n chroma_cmpf= s->dsp.me_cmp[size+1];\n for(y=FFMAX(-dia_size, ymin); y<=FFMIN(dia_size,ymax); y++){\n for(x=FFMAX(-dia_size, xmin); x<=FFMIN(dia_size,xmax); x++){\n CHECK_MV(x, y);\n }\n }\n x= best[0];\n y= best[1];\n d= dmin;\n CHECK_CLIPPED_MV(x , y);\n CHECK_CLIPPED_MV(x+1, y);\n CHECK_CLIPPED_MV(x, y+1);\n CHECK_CLIPPED_MV(x-1, y);\n CHECK_CLIPPED_MV(x, y-1);\n best[0]= x;\n best[1]= y;\n return d;\n}'] |
25,944 | 0 | https://github.com/libav/libav/blob/35cf146a33ce41a1adb6c9bd5a0827eacb1b6bfc/libavutil/blowfish.c/#L335 | av_cold void av_blowfish_init(AVBlowfish *ctx, const uint8_t *key, int key_len)
{
uint32_t data, data_l, data_r;
int i, j, k;
memcpy(ctx->s, orig_s, sizeof(orig_s));
j = 0;
for (i = 0; i < AV_BF_ROUNDS + 2; ++i) {
data = 0;
for (k = 0; k < 4; k++) {
data = (data << 8) | key[j];
if (++j >= key_len)
j = 0;
}
ctx->p[i] = orig_p[i] ^ data;
}
data_l = data_r = 0;
for (i = 0; i < AV_BF_ROUNDS + 2; i += 2) {
av_blowfish_crypt_ecb(ctx, &data_l, &data_r, 0);
ctx->p[i] = data_l;
ctx->p[i + 1] = data_r;
}
for (i = 0; i < 4; ++i) {
for (j = 0; j < 256; j += 2) {
av_blowfish_crypt_ecb(ctx, &data_l, &data_r, 0);
ctx->s[i][j] = data_l;
ctx->s[i][j + 1] = data_r;
}
}
} | ['av_cold void av_blowfish_init(AVBlowfish *ctx, const uint8_t *key, int key_len)\n{\n uint32_t data, data_l, data_r;\n int i, j, k;\n memcpy(ctx->s, orig_s, sizeof(orig_s));\n j = 0;\n for (i = 0; i < AV_BF_ROUNDS + 2; ++i) {\n data = 0;\n for (k = 0; k < 4; k++) {\n data = (data << 8) | key[j];\n if (++j >= key_len)\n j = 0;\n }\n ctx->p[i] = orig_p[i] ^ data;\n }\n data_l = data_r = 0;\n for (i = 0; i < AV_BF_ROUNDS + 2; i += 2) {\n av_blowfish_crypt_ecb(ctx, &data_l, &data_r, 0);\n ctx->p[i] = data_l;\n ctx->p[i + 1] = data_r;\n }\n for (i = 0; i < 4; ++i) {\n for (j = 0; j < 256; j += 2) {\n av_blowfish_crypt_ecb(ctx, &data_l, &data_r, 0);\n ctx->s[i][j] = data_l;\n ctx->s[i][j + 1] = data_r;\n }\n }\n}'] |
25,945 | 0 | https://github.com/openssl/openssl/blob/25a5d1b8c425d9434ed8b2bec53d20ab8c14f886/crypto/bn/bn_ctx.c/#L332 | static unsigned int BN_STACK_pop(BN_STACK *st)
{
return st->indexes[--(st->depth)];
} | ['int test_mod_exp(BIO *bp, BN_CTX *ctx)\n{\n BIGNUM *a, *b, *c, *d, *e;\n int i;\n a = BN_new();\n b = BN_new();\n c = BN_new();\n d = BN_new();\n e = BN_new();\n BN_one(a);\n BN_one(b);\n BN_zero(c);\n if (BN_mod_exp(d, a, b, c, ctx)) {\n fprintf(stderr, "BN_mod_exp with zero modulus succeeded!\\n");\n return 0;\n }\n BN_bntest_rand(c, 30, 0, 1);\n for (i = 0; i < num2; i++) {\n BN_bntest_rand(a, 20 + i * 5, 0, 0);\n BN_bntest_rand(b, 2 + i, 0, 0);\n if (!BN_mod_exp(d, a, b, c, ctx))\n return (0);\n if (bp != NULL) {\n if (!results) {\n BN_print(bp, a);\n BIO_puts(bp, " ^ ");\n BN_print(bp, b);\n BIO_puts(bp, " % ");\n BN_print(bp, c);\n BIO_puts(bp, " - ");\n }\n BN_print(bp, d);\n BIO_puts(bp, "\\n");\n }\n BN_exp(e, a, b, ctx);\n BN_sub(e, e, d);\n BN_div(a, b, e, c, ctx);\n if (!BN_is_zero(b)) {\n fprintf(stderr, "Modulo exponentiation test failed!\\n");\n return 0;\n }\n }\n BN_free(a);\n BN_free(b);\n BN_free(c);\n BN_free(d);\n BN_free(e);\n return (1);\n}', 'int BN_mod_exp(BIGNUM *r, const BIGNUM *a, const BIGNUM *p, const BIGNUM *m,\n BN_CTX *ctx)\n{\n int ret;\n bn_check_top(a);\n bn_check_top(p);\n bn_check_top(m);\n#define MONT_MUL_MOD\n#define MONT_EXP_WORD\n#define RECP_MUL_MOD\n#ifdef MONT_MUL_MOD\n if (BN_is_odd(m)) {\n# ifdef MONT_EXP_WORD\n if (a->top == 1 && !a->neg\n && (BN_get_flags(p, BN_FLG_CONSTTIME) == 0)) {\n BN_ULONG A = a->d[0];\n ret = BN_mod_exp_mont_word(r, A, p, m, ctx, NULL);\n } else\n# endif\n ret = BN_mod_exp_mont(r, a, p, m, ctx, NULL);\n } else\n#endif\n#ifdef RECP_MUL_MOD\n {\n ret = BN_mod_exp_recp(r, a, p, m, ctx);\n }\n#else\n {\n ret = BN_mod_exp_simple(r, a, p, m, ctx);\n }\n#endif\n bn_check_top(r);\n return (ret);\n}', 'int BN_mod_exp_mont_word(BIGNUM *rr, BN_ULONG a, const BIGNUM *p,\n const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *in_mont)\n{\n BN_MONT_CTX *mont = NULL;\n int b, bits, ret = 0;\n int r_is_one;\n BN_ULONG w, next_w;\n BIGNUM *d, *r, *t;\n BIGNUM *swap_tmp;\n#define BN_MOD_MUL_WORD(r, w, m) \\\n (BN_mul_word(r, (w)) && \\\n ( \\\n (BN_mod(t, r, m, ctx) && (swap_tmp = r, r = t, t = swap_tmp, 1))))\n#define BN_TO_MONTGOMERY_WORD(r, w, mont) \\\n (BN_set_word(r, (w)) && BN_to_montgomery(r, r, (mont), ctx))\n if (BN_get_flags(p, BN_FLG_CONSTTIME) != 0) {\n BNerr(BN_F_BN_MOD_EXP_MONT_WORD, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);\n return -1;\n }\n bn_check_top(p);\n bn_check_top(m);\n if (!BN_is_odd(m)) {\n BNerr(BN_F_BN_MOD_EXP_MONT_WORD, BN_R_CALLED_WITH_EVEN_MODULUS);\n return (0);\n }\n if (m->top == 1)\n a %= m->d[0];\n bits = BN_num_bits(p);\n if (bits == 0) {\n if (BN_is_one(m)) {\n ret = 1;\n BN_zero(rr);\n } else\n ret = BN_one(rr);\n return ret;\n }\n if (a == 0) {\n BN_zero(rr);\n ret = 1;\n return ret;\n }\n BN_CTX_start(ctx);\n d = BN_CTX_get(ctx);\n r = BN_CTX_get(ctx);\n t = BN_CTX_get(ctx);\n if (d == NULL || r == NULL || t == NULL)\n goto err;\n if (in_mont != NULL)\n mont = in_mont;\n else {\n if ((mont = BN_MONT_CTX_new()) == NULL)\n goto err;\n if (!BN_MONT_CTX_set(mont, m, ctx))\n goto err;\n }\n r_is_one = 1;\n w = a;\n for (b = bits - 2; b >= 0; b--) {\n next_w = w * w;\n if ((next_w / w) != w) {\n if (r_is_one) {\n if (!BN_TO_MONTGOMERY_WORD(r, w, mont))\n goto err;\n r_is_one = 0;\n } else {\n if (!BN_MOD_MUL_WORD(r, w, m))\n goto err;\n }\n next_w = 1;\n }\n w = next_w;\n if (!r_is_one) {\n if (!BN_mod_mul_montgomery(r, r, r, mont, ctx))\n goto err;\n }\n if (BN_is_bit_set(p, b)) {\n next_w = w * a;\n if ((next_w / a) != w) {\n if (r_is_one) {\n if (!BN_TO_MONTGOMERY_WORD(r, w, mont))\n goto err;\n r_is_one = 0;\n } else {\n if (!BN_MOD_MUL_WORD(r, w, m))\n goto err;\n }\n next_w = a;\n }\n w = next_w;\n }\n }\n if (w != 1) {\n if (r_is_one) {\n if (!BN_TO_MONTGOMERY_WORD(r, w, mont))\n goto err;\n r_is_one = 0;\n } else {\n if (!BN_MOD_MUL_WORD(r, w, m))\n goto err;\n }\n }\n if (r_is_one) {\n if (!BN_one(rr))\n goto err;\n } else {\n if (!BN_from_montgomery(rr, r, mont, ctx))\n goto err;\n }\n ret = 1;\n err:\n if (in_mont == NULL)\n BN_MONT_CTX_free(mont);\n BN_CTX_end(ctx);\n bn_check_top(rr);\n return (ret);\n}', 'int BN_mod_exp_recp(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,\n const BIGNUM *m, BN_CTX *ctx)\n{\n int i, j, bits, ret = 0, wstart, wend, window, wvalue;\n int start = 1;\n BIGNUM *aa;\n BIGNUM *val[TABLE_SIZE];\n BN_RECP_CTX recp;\n if (BN_get_flags(p, BN_FLG_CONSTTIME) != 0) {\n BNerr(BN_F_BN_MOD_EXP_RECP, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);\n return -1;\n }\n bits = BN_num_bits(p);\n if (bits == 0) {\n ret = BN_one(r);\n return ret;\n }\n BN_CTX_start(ctx);\n aa = BN_CTX_get(ctx);\n val[0] = BN_CTX_get(ctx);\n if (!aa || !val[0])\n goto err;\n BN_RECP_CTX_init(&recp);\n if (m->neg) {\n if (!BN_copy(aa, m))\n goto err;\n aa->neg = 0;\n if (BN_RECP_CTX_set(&recp, aa, ctx) <= 0)\n goto err;\n } else {\n if (BN_RECP_CTX_set(&recp, m, ctx) <= 0)\n goto err;\n }\n if (!BN_nnmod(val[0], a, m, ctx))\n goto err;\n if (BN_is_zero(val[0])) {\n BN_zero(r);\n ret = 1;\n goto err;\n }\n window = BN_window_bits_for_exponent_size(bits);\n if (window > 1) {\n if (!BN_mod_mul_reciprocal(aa, val[0], val[0], &recp, ctx))\n goto err;\n j = 1 << (window - 1);\n for (i = 1; i < j; i++) {\n if (((val[i] = BN_CTX_get(ctx)) == NULL) ||\n !BN_mod_mul_reciprocal(val[i], val[i - 1], aa, &recp, ctx))\n goto err;\n }\n }\n start = 1;\n wvalue = 0;\n wstart = bits - 1;\n wend = 0;\n if (!BN_one(r))\n goto err;\n for (;;) {\n if (BN_is_bit_set(p, wstart) == 0) {\n if (!start)\n if (!BN_mod_mul_reciprocal(r, r, r, &recp, ctx))\n goto err;\n if (wstart == 0)\n break;\n wstart--;\n continue;\n }\n j = wstart;\n wvalue = 1;\n wend = 0;\n for (i = 1; i < window; i++) {\n if (wstart - i < 0)\n break;\n if (BN_is_bit_set(p, wstart - i)) {\n wvalue <<= (i - wend);\n wvalue |= 1;\n wend = i;\n }\n }\n j = wend + 1;\n if (!start)\n for (i = 0; i < j; i++) {\n if (!BN_mod_mul_reciprocal(r, r, r, &recp, ctx))\n goto err;\n }\n if (!BN_mod_mul_reciprocal(r, r, val[wvalue >> 1], &recp, ctx))\n goto err;\n wstart -= wend + 1;\n wvalue = 0;\n start = 0;\n if (wstart < 0)\n break;\n }\n ret = 1;\n err:\n BN_CTX_end(ctx);\n BN_RECP_CTX_free(&recp);\n bn_check_top(r);\n return (ret);\n}', 'void BN_CTX_start(BN_CTX *ctx)\n{\n CTXDBG_ENTRY("BN_CTX_start", ctx);\n if (ctx->err_stack || ctx->too_many)\n ctx->err_stack++;\n else if (!BN_STACK_push(&ctx->stack, ctx->used)) {\n BNerr(BN_F_BN_CTX_START, BN_R_TOO_MANY_TEMPORARY_VARIABLES);\n ctx->err_stack++;\n }\n CTXDBG_EXIT(ctx);\n}', 'int BN_nnmod(BIGNUM *r, const BIGNUM *m, const BIGNUM *d, BN_CTX *ctx)\n{\n if (!(BN_mod(r, m, d, ctx)))\n return 0;\n if (!r->neg)\n return 1;\n return (d->neg ? BN_sub : BN_add) (r, r, d);\n}', 'int BN_div(BIGNUM *dv, BIGNUM *rm, const BIGNUM *num, const BIGNUM *divisor,\n BN_CTX *ctx)\n{\n int norm_shift, i, loop;\n BIGNUM *tmp, wnum, *snum, *sdiv, *res;\n BN_ULONG *resp, *wnump;\n BN_ULONG d0, d1;\n int num_n, div_n;\n int no_branch = 0;\n if ((num->top > 0 && num->d[num->top - 1] == 0) ||\n (divisor->top > 0 && divisor->d[divisor->top - 1] == 0)) {\n BNerr(BN_F_BN_DIV, BN_R_NOT_INITIALIZED);\n return 0;\n }\n bn_check_top(num);\n bn_check_top(divisor);\n if ((BN_get_flags(num, BN_FLG_CONSTTIME) != 0)\n || (BN_get_flags(divisor, BN_FLG_CONSTTIME) != 0)) {\n no_branch = 1;\n }\n bn_check_top(dv);\n bn_check_top(rm);\n if (BN_is_zero(divisor)) {\n BNerr(BN_F_BN_DIV, BN_R_DIV_BY_ZERO);\n return (0);\n }\n if (!no_branch && BN_ucmp(num, divisor) < 0) {\n if (rm != NULL) {\n if (BN_copy(rm, num) == NULL)\n return (0);\n }\n if (dv != NULL)\n BN_zero(dv);\n return (1);\n }\n BN_CTX_start(ctx);\n tmp = BN_CTX_get(ctx);\n snum = BN_CTX_get(ctx);\n sdiv = BN_CTX_get(ctx);\n if (dv == NULL)\n res = BN_CTX_get(ctx);\n else\n res = dv;\n if (sdiv == NULL || res == NULL || tmp == NULL || snum == NULL)\n goto err;\n norm_shift = BN_BITS2 - ((BN_num_bits(divisor)) % BN_BITS2);\n if (!(BN_lshift(sdiv, divisor, norm_shift)))\n goto err;\n sdiv->neg = 0;\n norm_shift += BN_BITS2;\n if (!(BN_lshift(snum, num, norm_shift)))\n goto err;\n snum->neg = 0;\n if (no_branch) {\n if (snum->top <= sdiv->top + 1) {\n if (bn_wexpand(snum, sdiv->top + 2) == NULL)\n goto err;\n for (i = snum->top; i < sdiv->top + 2; i++)\n snum->d[i] = 0;\n snum->top = sdiv->top + 2;\n } else {\n if (bn_wexpand(snum, snum->top + 1) == NULL)\n goto err;\n snum->d[snum->top] = 0;\n snum->top++;\n }\n }\n div_n = sdiv->top;\n num_n = snum->top;\n loop = num_n - div_n;\n wnum.neg = 0;\n wnum.d = &(snum->d[loop]);\n wnum.top = div_n;\n wnum.dmax = snum->dmax - loop;\n d0 = sdiv->d[div_n - 1];\n d1 = (div_n == 1) ? 0 : sdiv->d[div_n - 2];\n wnump = &(snum->d[num_n - 1]);\n res->neg = (num->neg ^ divisor->neg);\n if (!bn_wexpand(res, (loop + 1)))\n goto err;\n res->top = loop - no_branch;\n resp = &(res->d[loop - 1]);\n if (!bn_wexpand(tmp, (div_n + 1)))\n goto err;\n if (!no_branch) {\n if (BN_ucmp(&wnum, sdiv) >= 0) {\n bn_clear_top2max(&wnum);\n bn_sub_words(wnum.d, wnum.d, sdiv->d, div_n);\n *resp = 1;\n } else\n res->top--;\n }\n if (res->top == 0)\n res->neg = 0;\n else\n resp--;\n for (i = 0; i < loop - 1; i++, wnump--, resp--) {\n BN_ULONG q, l0;\n# if defined(BN_DIV3W) && !defined(OPENSSL_NO_ASM)\n BN_ULONG bn_div_3_words(BN_ULONG *, BN_ULONG, BN_ULONG);\n q = bn_div_3_words(wnump, d1, d0);\n# else\n BN_ULONG n0, n1, rem = 0;\n n0 = wnump[0];\n n1 = wnump[-1];\n if (n0 == d0)\n q = BN_MASK2;\n else {\n# ifdef BN_LLONG\n BN_ULLONG t2;\n# if defined(BN_LLONG) && defined(BN_DIV2W) && !defined(bn_div_words)\n q = (BN_ULONG)(((((BN_ULLONG) n0) << BN_BITS2) | n1) / d0);\n# else\n q = bn_div_words(n0, n1, d0);\n# ifdef BN_DEBUG_LEVITTE\n fprintf(stderr, "DEBUG: bn_div_words(0x%08X,0x%08X,0x%08\\\nX) -> 0x%08X\\n", n0, n1, d0, q);\n# endif\n# endif\n# ifndef REMAINDER_IS_ALREADY_CALCULATED\n rem = (n1 - q * d0) & BN_MASK2;\n# endif\n t2 = (BN_ULLONG) d1 *q;\n for (;;) {\n if (t2 <= ((((BN_ULLONG) rem) << BN_BITS2) | wnump[-2]))\n break;\n q--;\n rem += d0;\n if (rem < d0)\n break;\n t2 -= d1;\n }\n# else\n BN_ULONG t2l, t2h;\n q = bn_div_words(n0, n1, d0);\n# ifdef BN_DEBUG_LEVITTE\n fprintf(stderr, "DEBUG: bn_div_words(0x%08X,0x%08X,0x%08\\\nX) -> 0x%08X\\n", n0, n1, d0, q);\n# endif\n# ifndef REMAINDER_IS_ALREADY_CALCULATED\n rem = (n1 - q * d0) & BN_MASK2;\n# endif\n# if defined(BN_UMULT_LOHI)\n BN_UMULT_LOHI(t2l, t2h, d1, q);\n# elif defined(BN_UMULT_HIGH)\n t2l = d1 * q;\n t2h = BN_UMULT_HIGH(d1, q);\n# else\n {\n BN_ULONG ql, qh;\n t2l = LBITS(d1);\n t2h = HBITS(d1);\n ql = LBITS(q);\n qh = HBITS(q);\n mul64(t2l, t2h, ql, qh);\n }\n# endif\n for (;;) {\n if ((t2h < rem) || ((t2h == rem) && (t2l <= wnump[-2])))\n break;\n q--;\n rem += d0;\n if (rem < d0)\n break;\n if (t2l < d1)\n t2h--;\n t2l -= d1;\n }\n# endif\n }\n# endif\n l0 = bn_mul_words(tmp->d, sdiv->d, div_n, q);\n tmp->d[div_n] = l0;\n wnum.d--;\n if (bn_sub_words(wnum.d, wnum.d, tmp->d, div_n + 1)) {\n q--;\n if (bn_add_words(wnum.d, wnum.d, sdiv->d, div_n))\n (*wnump)++;\n }\n *resp = q;\n }\n bn_correct_top(snum);\n if (rm != NULL) {\n int neg = num->neg;\n BN_rshift(rm, snum, norm_shift);\n if (!BN_is_zero(rm))\n rm->neg = neg;\n bn_check_top(rm);\n }\n if (no_branch)\n bn_correct_top(res);\n BN_CTX_end(ctx);\n return (1);\n err:\n bn_check_top(rm);\n BN_CTX_end(ctx);\n return (0);\n}', 'void BN_CTX_end(BN_CTX *ctx)\n{\n CTXDBG_ENTRY("BN_CTX_end", ctx);\n if (ctx->err_stack)\n ctx->err_stack--;\n else {\n unsigned int fp = BN_STACK_pop(&ctx->stack);\n if (fp < ctx->used)\n BN_POOL_release(&ctx->pool, ctx->used - fp);\n ctx->used = fp;\n ctx->too_many = 0;\n }\n CTXDBG_EXIT(ctx);\n}', 'static unsigned int BN_STACK_pop(BN_STACK *st)\n{\n return st->indexes[--(st->depth)];\n}'] |
25,946 | 0 | https://github.com/openssl/openssl/blob/f006217bb628d05a2d5b866ff252bd94e3477e1f/crypto/bn/bn_lib.c/#L351 | static BN_ULONG *bn_expand_internal(const BIGNUM *b, int words)
{
BN_ULONG *A, *a = NULL;
const BN_ULONG *B;
int i;
bn_check_top(b);
if (words > (INT_MAX / (4 * BN_BITS2))) {
BNerr(BN_F_BN_EXPAND_INTERNAL, BN_R_BIGNUM_TOO_LONG);
return NULL;
}
if (BN_get_flags(b, BN_FLG_STATIC_DATA)) {
BNerr(BN_F_BN_EXPAND_INTERNAL, BN_R_EXPAND_ON_STATIC_BIGNUM_DATA);
return (NULL);
}
if (BN_get_flags(b,BN_FLG_SECURE))
a = A = OPENSSL_secure_malloc(words * sizeof(*a));
else
a = A = OPENSSL_malloc(words * sizeof(*a));
if (A == NULL) {
BNerr(BN_F_BN_EXPAND_INTERNAL, ERR_R_MALLOC_FAILURE);
return (NULL);
}
#ifdef PURIFY
memset(a, 0, sizeof(*a) * words);
#endif
#if 1
B = b->d;
if (B != NULL) {
for (i = b->top >> 2; i > 0; i--, A += 4, B += 4) {
BN_ULONG a0, a1, a2, a3;
a0 = B[0];
a1 = B[1];
a2 = B[2];
a3 = B[3];
A[0] = a0;
A[1] = a1;
A[2] = a2;
A[3] = a3;
}
switch (b->top & 3) {
case 3:
A[2] = B[2];
case 2:
A[1] = B[1];
case 1:
A[0] = B[0];
case 0:
;
}
}
#else
memset(A, 0, sizeof(*A) * words);
memcpy(A, b->d, sizeof(b->d[0]) * b->top);
#endif
return (a);
} | ['int ec_GF2m_simple_is_on_curve(const EC_GROUP *group, const EC_POINT *point,\n BN_CTX *ctx)\n{\n int ret = -1;\n BN_CTX *new_ctx = NULL;\n BIGNUM *lh, *y2;\n int (*field_mul) (const EC_GROUP *, BIGNUM *, const BIGNUM *,\n const BIGNUM *, BN_CTX *);\n int (*field_sqr) (const EC_GROUP *, BIGNUM *, const BIGNUM *, BN_CTX *);\n if (EC_POINT_is_at_infinity(group, point))\n return 1;\n field_mul = group->meth->field_mul;\n field_sqr = group->meth->field_sqr;\n if (!point->Z_is_one)\n return -1;\n if (ctx == NULL) {\n ctx = new_ctx = BN_CTX_new();\n if (ctx == NULL)\n return -1;\n }\n BN_CTX_start(ctx);\n y2 = BN_CTX_get(ctx);\n lh = BN_CTX_get(ctx);\n if (lh == NULL)\n goto err;\n if (!BN_GF2m_add(lh, point->X, group->a))\n goto err;\n if (!field_mul(group, lh, lh, point->X, ctx))\n goto err;\n if (!BN_GF2m_add(lh, lh, point->Y))\n goto err;\n if (!field_mul(group, lh, lh, point->X, ctx))\n goto err;\n if (!BN_GF2m_add(lh, lh, group->b))\n goto err;\n if (!field_sqr(group, y2, point->Y, ctx))\n goto err;\n if (!BN_GF2m_add(lh, lh, y2))\n goto err;\n ret = BN_is_zero(lh);\n err:\n if (ctx)\n BN_CTX_end(ctx);\n BN_CTX_free(new_ctx);\n return ret;\n}', 'BIGNUM *BN_CTX_get(BN_CTX *ctx)\n{\n BIGNUM *ret;\n CTXDBG_ENTRY("BN_CTX_get", ctx);\n if (ctx->err_stack || ctx->too_many)\n return NULL;\n if ((ret = BN_POOL_get(&ctx->pool, ctx->flags)) == NULL) {\n ctx->too_many = 1;\n BNerr(BN_F_BN_CTX_GET, BN_R_TOO_MANY_TEMPORARY_VARIABLES);\n return NULL;\n }\n BN_zero(ret);\n ctx->used++;\n CTXDBG_RET(ctx, ret);\n return ret;\n}', 'int BN_set_word(BIGNUM *a, BN_ULONG w)\n{\n bn_check_top(a);\n if (bn_expand(a, (int)sizeof(BN_ULONG) * 8) == NULL)\n return (0);\n a->neg = 0;\n a->d[0] = w;\n a->top = (w ? 1 : 0);\n bn_check_top(a);\n return (1);\n}', 'int BN_GF2m_add(BIGNUM *r, const BIGNUM *a, const BIGNUM *b)\n{\n int i;\n const BIGNUM *at, *bt;\n bn_check_top(a);\n bn_check_top(b);\n if (a->top < b->top) {\n at = b;\n bt = a;\n } else {\n at = a;\n bt = b;\n }\n if (bn_wexpand(r, at->top) == NULL)\n return 0;\n for (i = 0; i < bt->top; i++) {\n r->d[i] = at->d[i] ^ bt->d[i];\n }\n for (; i < at->top; i++) {\n r->d[i] = at->d[i];\n }\n r->top = at->top;\n bn_correct_top(r);\n return 1;\n}', 'BIGNUM *bn_wexpand(BIGNUM *a, int words)\n{\n return (words <= a->dmax) ? a : bn_expand2(a, words);\n}', 'BIGNUM *bn_expand2(BIGNUM *b, int words)\n{\n bn_check_top(b);\n if (words > b->dmax) {\n BN_ULONG *a = bn_expand_internal(b, words);\n if (!a)\n return NULL;\n if (b->d) {\n OPENSSL_cleanse(b->d, b->dmax * sizeof(b->d[0]));\n bn_free_d(b);\n }\n b->d = a;\n b->dmax = words;\n }\n bn_check_top(b);\n return b;\n}', 'static BN_ULONG *bn_expand_internal(const BIGNUM *b, int words)\n{\n BN_ULONG *A, *a = NULL;\n const BN_ULONG *B;\n int i;\n bn_check_top(b);\n if (words > (INT_MAX / (4 * BN_BITS2))) {\n BNerr(BN_F_BN_EXPAND_INTERNAL, BN_R_BIGNUM_TOO_LONG);\n return NULL;\n }\n if (BN_get_flags(b, BN_FLG_STATIC_DATA)) {\n BNerr(BN_F_BN_EXPAND_INTERNAL, BN_R_EXPAND_ON_STATIC_BIGNUM_DATA);\n return (NULL);\n }\n if (BN_get_flags(b,BN_FLG_SECURE))\n a = A = OPENSSL_secure_malloc(words * sizeof(*a));\n else\n a = A = OPENSSL_malloc(words * sizeof(*a));\n if (A == NULL) {\n BNerr(BN_F_BN_EXPAND_INTERNAL, ERR_R_MALLOC_FAILURE);\n return (NULL);\n }\n#ifdef PURIFY\n memset(a, 0, sizeof(*a) * words);\n#endif\n#if 1\n B = b->d;\n if (B != NULL) {\n for (i = b->top >> 2; i > 0; i--, A += 4, B += 4) {\n BN_ULONG a0, a1, a2, a3;\n a0 = B[0];\n a1 = B[1];\n a2 = B[2];\n a3 = B[3];\n A[0] = a0;\n A[1] = a1;\n A[2] = a2;\n A[3] = a3;\n }\n switch (b->top & 3) {\n case 3:\n A[2] = B[2];\n case 2:\n A[1] = B[1];\n case 1:\n A[0] = B[0];\n case 0:\n ;\n }\n }\n#else\n memset(A, 0, sizeof(*A) * words);\n memcpy(A, b->d, sizeof(b->d[0]) * b->top);\n#endif\n return (a);\n}'] |
25,947 | 0 | https://github.com/openssl/openssl/blob/313fce7b61ecaf5879cf84b256bdd0964134836e/crypto/bn/bn_ctx.c/#L353 | static unsigned int BN_STACK_pop(BN_STACK *st)
{
return st->indexes[--(st->depth)];
} | ['static BIGNUM *rsa_get_public_exp(const BIGNUM *d, const BIGNUM *p,\n\tconst BIGNUM *q, BN_CTX *ctx)\n{\n\tBIGNUM *ret = NULL, *r0, *r1, *r2;\n\tif (d == NULL || p == NULL || q == NULL)\n\t\treturn NULL;\n\tBN_CTX_start(ctx);\n\tr0 = BN_CTX_get(ctx);\n\tr1 = BN_CTX_get(ctx);\n\tr2 = BN_CTX_get(ctx);\n\tif (r2 == NULL)\n\t\tgoto err;\n\tif (!BN_sub(r1, p, BN_value_one())) goto err;\n\tif (!BN_sub(r2, q, BN_value_one())) goto err;\n\tif (!BN_mul(r0, r1, r2, ctx)) goto err;\n\tret = BN_mod_inverse(NULL, d, r0, ctx);\nerr:\n\tBN_CTX_end(ctx);\n\treturn ret;\n}', 'void BN_CTX_start(BN_CTX *ctx)\n\t{\n\tCTXDBG_ENTRY("BN_CTX_start", ctx);\n\tif(ctx->err_stack || ctx->too_many)\n\t\tctx->err_stack++;\n\telse if(!BN_STACK_push(&ctx->stack, ctx->used))\n\t\t{\n\t\tBNerr(BN_F_BN_CTX_START,BN_R_TOO_MANY_TEMPORARY_VARIABLES);\n\t\tctx->err_stack++;\n\t\t}\n\tCTXDBG_EXIT(ctx);\n\t}', 'int BN_mul(BIGNUM *r, const BIGNUM *a, const BIGNUM *b, BN_CTX *ctx)\n\t{\n\tint ret=0;\n\tint top,al,bl;\n\tBIGNUM *rr;\n#if defined(BN_MUL_COMBA) || defined(BN_RECURSION)\n\tint i;\n#endif\n#ifdef BN_RECURSION\n\tBIGNUM *t=NULL;\n\tint j=0,k;\n#endif\n#ifdef BN_COUNT\n\tfprintf(stderr,"BN_mul %d * %d\\n",a->top,b->top);\n#endif\n\tbn_check_top(a);\n\tbn_check_top(b);\n\tbn_check_top(r);\n\tal=a->top;\n\tbl=b->top;\n\tif ((al == 0) || (bl == 0))\n\t\t{\n\t\tBN_zero(r);\n\t\treturn(1);\n\t\t}\n\ttop=al+bl;\n\tBN_CTX_start(ctx);\n\tif ((r == a) || (r == b))\n\t\t{\n\t\tif ((rr = BN_CTX_get(ctx)) == NULL) goto err;\n\t\t}\n\telse\n\t\trr = r;\n\trr->neg=a->neg^b->neg;\n#if defined(BN_MUL_COMBA) || defined(BN_RECURSION)\n\ti = al-bl;\n#endif\n#ifdef BN_MUL_COMBA\n\tif (i == 0)\n\t\t{\n# if 0\n\t\tif (al == 4)\n\t\t\t{\n\t\t\tif (bn_wexpand(rr,8) == NULL) goto err;\n\t\t\trr->top=8;\n\t\t\tbn_mul_comba4(rr->d,a->d,b->d);\n\t\t\tgoto end;\n\t\t\t}\n# endif\n\t\tif (al == 8)\n\t\t\t{\n\t\t\tif (bn_wexpand(rr,16) == NULL) goto err;\n\t\t\trr->top=16;\n\t\t\tbn_mul_comba8(rr->d,a->d,b->d);\n\t\t\tgoto end;\n\t\t\t}\n\t\t}\n#endif\n#ifdef BN_RECURSION\n\tif ((al >= BN_MULL_SIZE_NORMAL) && (bl >= BN_MULL_SIZE_NORMAL))\n\t\t{\n\t\tif (i >= -1 && i <= 1)\n\t\t\t{\n\t\t\tint sav_j =0;\n\t\t\tif (i >= 0)\n\t\t\t\t{\n\t\t\t\tj = BN_num_bits_word((BN_ULONG)al);\n\t\t\t\t}\n\t\t\tif (i == -1)\n\t\t\t\t{\n\t\t\t\tj = BN_num_bits_word((BN_ULONG)bl);\n\t\t\t\t}\n\t\t\tsav_j = j;\n\t\t\tj = 1<<(j-1);\n\t\t\tassert(j <= al || j <= bl);\n\t\t\tk = j+j;\n\t\t\tt = BN_CTX_get(ctx);\n\t\t\tif (al > j || bl > j)\n\t\t\t\t{\n\t\t\t\tbn_wexpand(t,k*4);\n\t\t\t\tbn_wexpand(rr,k*4);\n\t\t\t\tbn_mul_part_recursive(rr->d,a->d,b->d,\n\t\t\t\t\tj,al-j,bl-j,t->d);\n\t\t\t\t}\n\t\t\telse\n\t\t\t\t{\n\t\t\t\tbn_wexpand(t,k*2);\n\t\t\t\tbn_wexpand(rr,k*2);\n\t\t\t\tbn_mul_recursive(rr->d,a->d,b->d,\n\t\t\t\t\tj,al-j,bl-j,t->d);\n\t\t\t\t}\n\t\t\trr->top=top;\n\t\t\tgoto end;\n\t\t\t}\n#if 0\n\t\tif (i == 1 && !BN_get_flags(b,BN_FLG_STATIC_DATA))\n\t\t\t{\n\t\t\tBIGNUM *tmp_bn = (BIGNUM *)b;\n\t\t\tif (bn_wexpand(tmp_bn,al) == NULL) goto err;\n\t\t\ttmp_bn->d[bl]=0;\n\t\t\tbl++;\n\t\t\ti--;\n\t\t\t}\n\t\telse if (i == -1 && !BN_get_flags(a,BN_FLG_STATIC_DATA))\n\t\t\t{\n\t\t\tBIGNUM *tmp_bn = (BIGNUM *)a;\n\t\t\tif (bn_wexpand(tmp_bn,bl) == NULL) goto err;\n\t\t\ttmp_bn->d[al]=0;\n\t\t\tal++;\n\t\t\ti++;\n\t\t\t}\n\t\tif (i == 0)\n\t\t\t{\n\t\t\tj=BN_num_bits_word((BN_ULONG)al);\n\t\t\tj=1<<(j-1);\n\t\t\tk=j+j;\n\t\t\tt = BN_CTX_get(ctx);\n\t\t\tif (al == j)\n\t\t\t\t{\n\t\t\t\tif (bn_wexpand(t,k*2) == NULL) goto err;\n\t\t\t\tif (bn_wexpand(rr,k*2) == NULL) goto err;\n\t\t\t\tbn_mul_recursive(rr->d,a->d,b->d,al,t->d);\n\t\t\t\t}\n\t\t\telse\n\t\t\t\t{\n\t\t\t\tif (bn_wexpand(t,k*4) == NULL) goto err;\n\t\t\t\tif (bn_wexpand(rr,k*4) == NULL) goto err;\n\t\t\t\tbn_mul_part_recursive(rr->d,a->d,b->d,al-j,j,t->d);\n\t\t\t\t}\n\t\t\trr->top=top;\n\t\t\tgoto end;\n\t\t\t}\n#endif\n\t\t}\n#endif\n\tif (bn_wexpand(rr,top) == NULL) goto err;\n\trr->top=top;\n\tbn_mul_normal(rr->d,a->d,al,b->d,bl);\n#if defined(BN_MUL_COMBA) || defined(BN_RECURSION)\nend:\n#endif\n\tbn_correct_top(rr);\n\tif (r != rr) BN_copy(r,rr);\n\tret=1;\nerr:\n\tbn_check_top(r);\n\tBN_CTX_end(ctx);\n\treturn(ret);\n\t}', 'BIGNUM *BN_mod_inverse(BIGNUM *in,\n\tconst BIGNUM *a, const BIGNUM *n, BN_CTX *ctx)\n\t{\n\tBIGNUM *A,*B,*X,*Y,*M,*D,*T,*R=NULL;\n\tBIGNUM *ret=NULL;\n\tint sign;\n\tif ((BN_get_flags(a, BN_FLG_CONSTTIME) != 0) || (BN_get_flags(n, BN_FLG_CONSTTIME) != 0))\n\t\t{\n\t\treturn BN_mod_inverse_no_branch(in, a, n, ctx);\n\t\t}\n\tbn_check_top(a);\n\tbn_check_top(n);\n\tBN_CTX_start(ctx);\n\tA = BN_CTX_get(ctx);\n\tB = BN_CTX_get(ctx);\n\tX = BN_CTX_get(ctx);\n\tD = BN_CTX_get(ctx);\n\tM = BN_CTX_get(ctx);\n\tY = BN_CTX_get(ctx);\n\tT = BN_CTX_get(ctx);\n\tif (T == NULL) goto err;\n\tif (in == NULL)\n\t\tR=BN_new();\n\telse\n\t\tR=in;\n\tif (R == NULL) goto err;\n\tBN_one(X);\n\tBN_zero(Y);\n\tif (BN_copy(B,a) == NULL) goto err;\n\tif (BN_copy(A,n) == NULL) goto err;\n\tA->neg = 0;\n\tif (B->neg || (BN_ucmp(B, A) >= 0))\n\t\t{\n\t\tif (!BN_nnmod(B, B, A, ctx)) goto err;\n\t\t}\n\tsign = -1;\n\tif (BN_is_odd(n) && (BN_num_bits(n) <= (BN_BITS <= 32 ? 450 : 2048)))\n\t\t{\n\t\tint shift;\n\t\twhile (!BN_is_zero(B))\n\t\t\t{\n\t\t\tshift = 0;\n\t\t\twhile (!BN_is_bit_set(B, shift))\n\t\t\t\t{\n\t\t\t\tshift++;\n\t\t\t\tif (BN_is_odd(X))\n\t\t\t\t\t{\n\t\t\t\t\tif (!BN_uadd(X, X, n)) goto err;\n\t\t\t\t\t}\n\t\t\t\tif (!BN_rshift1(X, X)) goto err;\n\t\t\t\t}\n\t\t\tif (shift > 0)\n\t\t\t\t{\n\t\t\t\tif (!BN_rshift(B, B, shift)) goto err;\n\t\t\t\t}\n\t\t\tshift = 0;\n\t\t\twhile (!BN_is_bit_set(A, shift))\n\t\t\t\t{\n\t\t\t\tshift++;\n\t\t\t\tif (BN_is_odd(Y))\n\t\t\t\t\t{\n\t\t\t\t\tif (!BN_uadd(Y, Y, n)) goto err;\n\t\t\t\t\t}\n\t\t\t\tif (!BN_rshift1(Y, Y)) goto err;\n\t\t\t\t}\n\t\t\tif (shift > 0)\n\t\t\t\t{\n\t\t\t\tif (!BN_rshift(A, A, shift)) goto err;\n\t\t\t\t}\n\t\t\tif (BN_ucmp(B, A) >= 0)\n\t\t\t\t{\n\t\t\t\tif (!BN_uadd(X, X, Y)) goto err;\n\t\t\t\tif (!BN_usub(B, B, A)) goto err;\n\t\t\t\t}\n\t\t\telse\n\t\t\t\t{\n\t\t\t\tif (!BN_uadd(Y, Y, X)) goto err;\n\t\t\t\tif (!BN_usub(A, A, B)) goto err;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\telse\n\t\t{\n\t\twhile (!BN_is_zero(B))\n\t\t\t{\n\t\t\tBIGNUM *tmp;\n\t\t\tif (BN_num_bits(A) == BN_num_bits(B))\n\t\t\t\t{\n\t\t\t\tif (!BN_one(D)) goto err;\n\t\t\t\tif (!BN_sub(M,A,B)) goto err;\n\t\t\t\t}\n\t\t\telse if (BN_num_bits(A) == BN_num_bits(B) + 1)\n\t\t\t\t{\n\t\t\t\tif (!BN_lshift1(T,B)) goto err;\n\t\t\t\tif (BN_ucmp(A,T) < 0)\n\t\t\t\t\t{\n\t\t\t\t\tif (!BN_one(D)) goto err;\n\t\t\t\t\tif (!BN_sub(M,A,B)) goto err;\n\t\t\t\t\t}\n\t\t\t\telse\n\t\t\t\t\t{\n\t\t\t\t\tif (!BN_sub(M,A,T)) goto err;\n\t\t\t\t\tif (!BN_add(D,T,B)) goto err;\n\t\t\t\t\tif (BN_ucmp(A,D) < 0)\n\t\t\t\t\t\t{\n\t\t\t\t\t\tif (!BN_set_word(D,2)) goto err;\n\t\t\t\t\t\t}\n\t\t\t\t\telse\n\t\t\t\t\t\t{\n\t\t\t\t\t\tif (!BN_set_word(D,3)) goto err;\n\t\t\t\t\t\tif (!BN_sub(M,M,B)) goto err;\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\telse\n\t\t\t\t{\n\t\t\t\tif (!BN_div(D,M,A,B,ctx)) goto err;\n\t\t\t\t}\n\t\t\ttmp=A;\n\t\t\tA=B;\n\t\t\tB=M;\n\t\t\tif (BN_is_one(D))\n\t\t\t\t{\n\t\t\t\tif (!BN_add(tmp,X,Y)) goto err;\n\t\t\t\t}\n\t\t\telse\n\t\t\t\t{\n\t\t\t\tif (BN_is_word(D,2))\n\t\t\t\t\t{\n\t\t\t\t\tif (!BN_lshift1(tmp,X)) goto err;\n\t\t\t\t\t}\n\t\t\t\telse if (BN_is_word(D,4))\n\t\t\t\t\t{\n\t\t\t\t\tif (!BN_lshift(tmp,X,2)) goto err;\n\t\t\t\t\t}\n\t\t\t\telse if (D->top == 1)\n\t\t\t\t\t{\n\t\t\t\t\tif (!BN_copy(tmp,X)) goto err;\n\t\t\t\t\tif (!BN_mul_word(tmp,D->d[0])) goto err;\n\t\t\t\t\t}\n\t\t\t\telse\n\t\t\t\t\t{\n\t\t\t\t\tif (!BN_mul(tmp,D,X,ctx)) goto err;\n\t\t\t\t\t}\n\t\t\t\tif (!BN_add(tmp,tmp,Y)) goto err;\n\t\t\t\t}\n\t\t\tM=Y;\n\t\t\tY=X;\n\t\t\tX=tmp;\n\t\t\tsign = -sign;\n\t\t\t}\n\t\t}\n\tif (sign < 0)\n\t\t{\n\t\tif (!BN_sub(Y,n,Y)) goto err;\n\t\t}\n\tif (BN_is_one(A))\n\t\t{\n\t\tif (!Y->neg && BN_ucmp(Y,n) < 0)\n\t\t\t{\n\t\t\tif (!BN_copy(R,Y)) goto err;\n\t\t\t}\n\t\telse\n\t\t\t{\n\t\t\tif (!BN_nnmod(R,Y,n,ctx)) goto err;\n\t\t\t}\n\t\t}\n\telse\n\t\t{\n\t\tBNerr(BN_F_BN_MOD_INVERSE,BN_R_NO_INVERSE);\n\t\tgoto err;\n\t\t}\n\tret=R;\nerr:\n\tif ((ret == NULL) && (in == NULL)) BN_free(R);\n\tBN_CTX_end(ctx);\n\tbn_check_top(ret);\n\treturn(ret);\n\t}', 'BIGNUM *BN_mod_inverse_no_branch(BIGNUM *in,\n\tconst BIGNUM *a, const BIGNUM *n, BN_CTX *ctx)\n\t{\n\tBIGNUM *A,*B,*X,*Y,*M,*D,*T,*R=NULL;\n\tBIGNUM local_A, local_B;\n\tBIGNUM *pA, *pB;\n\tBIGNUM *ret=NULL;\n\tint sign;\n\tbn_check_top(a);\n\tbn_check_top(n);\n\tBN_CTX_start(ctx);\n\tA = BN_CTX_get(ctx);\n\tB = BN_CTX_get(ctx);\n\tX = BN_CTX_get(ctx);\n\tD = BN_CTX_get(ctx);\n\tM = BN_CTX_get(ctx);\n\tY = BN_CTX_get(ctx);\n\tT = BN_CTX_get(ctx);\n\tif (T == NULL) goto err;\n\tif (in == NULL)\n\t\tR=BN_new();\n\telse\n\t\tR=in;\n\tif (R == NULL) goto err;\n\tBN_one(X);\n\tBN_zero(Y);\n\tif (BN_copy(B,a) == NULL) goto err;\n\tif (BN_copy(A,n) == NULL) goto err;\n\tA->neg = 0;\n\tif (B->neg || (BN_ucmp(B, A) >= 0))\n\t\t{\n\t\tpB = &local_B;\n\t\tBN_with_flags(pB, B, BN_FLG_CONSTTIME);\n\t\tif (!BN_nnmod(B, pB, A, ctx)) goto err;\n\t\t}\n\tsign = -1;\n\twhile (!BN_is_zero(B))\n\t\t{\n\t\tBIGNUM *tmp;\n\t\tpA = &local_A;\n\t\tBN_with_flags(pA, A, BN_FLG_CONSTTIME);\n\t\tif (!BN_div(D,M,pA,B,ctx)) goto err;\n\t\ttmp=A;\n\t\tA=B;\n\t\tB=M;\n\t\tif (!BN_mul(tmp,D,X,ctx)) goto err;\n\t\tif (!BN_add(tmp,tmp,Y)) goto err;\n\t\tM=Y;\n\t\tY=X;\n\t\tX=tmp;\n\t\tsign = -sign;\n\t\t}\n\tif (sign < 0)\n\t\t{\n\t\tif (!BN_sub(Y,n,Y)) goto err;\n\t\t}\n\tif (BN_is_one(A))\n\t\t{\n\t\tif (!Y->neg && BN_ucmp(Y,n) < 0)\n\t\t\t{\n\t\t\tif (!BN_copy(R,Y)) goto err;\n\t\t\t}\n\t\telse\n\t\t\t{\n\t\t\tif (!BN_nnmod(R,Y,n,ctx)) goto err;\n\t\t\t}\n\t\t}\n\telse\n\t\t{\n\t\tBNerr(BN_F_BN_MOD_INVERSE,BN_R_NO_INVERSE);\n\t\tgoto err;\n\t\t}\n\tret=R;\nerr:\n\tif ((ret == NULL) && (in == NULL)) BN_free(R);\n\tBN_CTX_end(ctx);\n\tbn_check_top(ret);\n\treturn(ret);\n\t}', 'int BN_nnmod(BIGNUM *r, const BIGNUM *m, const BIGNUM *d, BN_CTX *ctx)\n\t{\n\tif (!(BN_mod(r,m,d,ctx)))\n\t\treturn 0;\n\tif (!r->neg)\n\t\treturn 1;\n\treturn (d->neg ? BN_sub : BN_add)(r, r, d);\n}', 'int BN_div(BIGNUM *dv, BIGNUM *rm, const BIGNUM *num, const BIGNUM *divisor,\n\t BN_CTX *ctx)\n\t{\n\tint norm_shift,i,loop;\n\tBIGNUM *tmp,wnum,*snum,*sdiv,*res;\n\tBN_ULONG *resp,*wnump;\n\tBN_ULONG d0,d1;\n\tint num_n,div_n;\n\tif ((BN_get_flags(num, BN_FLG_CONSTTIME) != 0) || (BN_get_flags(divisor, BN_FLG_CONSTTIME) != 0))\n\t\t{\n\t\treturn BN_div_no_branch(dv, rm, num, divisor, ctx);\n\t\t}\n\tbn_check_top(dv);\n\tbn_check_top(rm);\n\tbn_check_top(num);\n\tbn_check_top(divisor);\n\tif (BN_is_zero(divisor))\n\t\t{\n\t\tBNerr(BN_F_BN_DIV,BN_R_DIV_BY_ZERO);\n\t\treturn(0);\n\t\t}\n\tif (BN_ucmp(num,divisor) < 0)\n\t\t{\n\t\tif (rm != NULL)\n\t\t\t{ if (BN_copy(rm,num) == NULL) return(0); }\n\t\tif (dv != NULL) BN_zero(dv);\n\t\treturn(1);\n\t\t}\n\tBN_CTX_start(ctx);\n\ttmp=BN_CTX_get(ctx);\n\tsnum=BN_CTX_get(ctx);\n\tsdiv=BN_CTX_get(ctx);\n\tif (dv == NULL)\n\t\tres=BN_CTX_get(ctx);\n\telse\tres=dv;\n\tif (sdiv == NULL || res == NULL) goto err;\n\tnorm_shift=BN_BITS2-((BN_num_bits(divisor))%BN_BITS2);\n\tif (!(BN_lshift(sdiv,divisor,norm_shift))) goto err;\n\tsdiv->neg=0;\n\tnorm_shift+=BN_BITS2;\n\tif (!(BN_lshift(snum,num,norm_shift))) goto err;\n\tsnum->neg=0;\n\tdiv_n=sdiv->top;\n\tnum_n=snum->top;\n\tloop=num_n-div_n;\n\twnum.neg = 0;\n\twnum.d = &(snum->d[loop]);\n\twnum.top = div_n;\n\twnum.dmax = snum->dmax - loop;\n\td0=sdiv->d[div_n-1];\n\td1=(div_n == 1)?0:sdiv->d[div_n-2];\n\twnump= &(snum->d[num_n-1]);\n\tres->neg= (num->neg^divisor->neg);\n\tif (!bn_wexpand(res,(loop+1))) goto err;\n\tres->top=loop;\n\tresp= &(res->d[loop-1]);\n\tif (!bn_wexpand(tmp,(div_n+1))) goto err;\n\tif (BN_ucmp(&wnum,sdiv) >= 0)\n\t\t{\n\t\tbn_clear_top2max(&wnum);\n\t\tbn_sub_words(wnum.d, wnum.d, sdiv->d, div_n);\n\t\t*resp=1;\n\t\t}\n\telse\n\t\tres->top--;\n\tif (res->top == 0)\n\t\tres->neg = 0;\n\telse\n\t\tresp--;\n\tfor (i=0; i<loop-1; i++, wnump--, resp--)\n\t\t{\n\t\tBN_ULONG q,l0;\n#if defined(BN_DIV3W) && !defined(OPENSSL_NO_ASM)\n\t\tBN_ULONG bn_div_3_words(BN_ULONG*,BN_ULONG,BN_ULONG);\n\t\tq=bn_div_3_words(wnump,d1,d0);\n#else\n\t\tBN_ULONG n0,n1,rem=0;\n\t\tn0=wnump[0];\n\t\tn1=wnump[-1];\n\t\tif (n0 == d0)\n\t\t\tq=BN_MASK2;\n\t\telse\n\t\t\t{\n#ifdef BN_LLONG\n\t\t\tBN_ULLONG t2;\n#if defined(BN_LLONG) && defined(BN_DIV2W) && !defined(bn_div_words)\n\t\t\tq=(BN_ULONG)(((((BN_ULLONG)n0)<<BN_BITS2)|n1)/d0);\n#else\n\t\t\tq=bn_div_words(n0,n1,d0);\n#ifdef BN_DEBUG_LEVITTE\n\t\t\tfprintf(stderr,"DEBUG: bn_div_words(0x%08X,0x%08X,0x%08\\\nX) -> 0x%08X\\n",\n\t\t\t\tn0, n1, d0, q);\n#endif\n#endif\n#ifndef REMAINDER_IS_ALREADY_CALCULATED\n\t\t\trem=(n1-q*d0)&BN_MASK2;\n#endif\n\t\t\tt2=(BN_ULLONG)d1*q;\n\t\t\tfor (;;)\n\t\t\t\t{\n\t\t\t\tif (t2 <= ((((BN_ULLONG)rem)<<BN_BITS2)|wnump[-2]))\n\t\t\t\t\tbreak;\n\t\t\t\tq--;\n\t\t\t\trem += d0;\n\t\t\t\tif (rem < d0) break;\n\t\t\t\tt2 -= d1;\n\t\t\t\t}\n#else\n\t\t\tBN_ULONG t2l,t2h,ql,qh;\n\t\t\tq=bn_div_words(n0,n1,d0);\n#ifdef BN_DEBUG_LEVITTE\n\t\t\tfprintf(stderr,"DEBUG: bn_div_words(0x%08X,0x%08X,0x%08\\\nX) -> 0x%08X\\n",\n\t\t\t\tn0, n1, d0, q);\n#endif\n#ifndef REMAINDER_IS_ALREADY_CALCULATED\n\t\t\trem=(n1-q*d0)&BN_MASK2;\n#endif\n#if defined(BN_UMULT_LOHI)\n\t\t\tBN_UMULT_LOHI(t2l,t2h,d1,q);\n#elif defined(BN_UMULT_HIGH)\n\t\t\tt2l = d1 * q;\n\t\t\tt2h = BN_UMULT_HIGH(d1,q);\n#else\n\t\t\tt2l=LBITS(d1); t2h=HBITS(d1);\n\t\t\tql =LBITS(q); qh =HBITS(q);\n\t\t\tmul64(t2l,t2h,ql,qh);\n#endif\n\t\t\tfor (;;)\n\t\t\t\t{\n\t\t\t\tif ((t2h < rem) ||\n\t\t\t\t\t((t2h == rem) && (t2l <= wnump[-2])))\n\t\t\t\t\tbreak;\n\t\t\t\tq--;\n\t\t\t\trem += d0;\n\t\t\t\tif (rem < d0) break;\n\t\t\t\tif (t2l < d1) t2h--; t2l -= d1;\n\t\t\t\t}\n#endif\n\t\t\t}\n#endif\n\t\tl0=bn_mul_words(tmp->d,sdiv->d,div_n,q);\n\t\ttmp->d[div_n]=l0;\n\t\twnum.d--;\n\t\tif (bn_sub_words(wnum.d, wnum.d, tmp->d, div_n+1))\n\t\t\t{\n\t\t\tq--;\n\t\t\tif (bn_add_words(wnum.d, wnum.d, sdiv->d, div_n))\n\t\t\t\t(*wnump)++;\n\t\t\t}\n\t\t*resp = q;\n\t\t}\n\tbn_correct_top(snum);\n\tif (rm != NULL)\n\t\t{\n\t\tint neg = num->neg;\n\t\tBN_rshift(rm,snum,norm_shift);\n\t\tif (!BN_is_zero(rm))\n\t\t\trm->neg = neg;\n\t\tbn_check_top(rm);\n\t\t}\n\tBN_CTX_end(ctx);\n\treturn(1);\nerr:\n\tbn_check_top(rm);\n\tBN_CTX_end(ctx);\n\treturn(0);\n\t}', 'int BN_div_no_branch(BIGNUM *dv, BIGNUM *rm, const BIGNUM *num,\n\tconst BIGNUM *divisor, BN_CTX *ctx)\n\t{\n\tint norm_shift,i,loop;\n\tBIGNUM *tmp,wnum,*snum,*sdiv,*res;\n\tBN_ULONG *resp,*wnump;\n\tBN_ULONG d0,d1;\n\tint num_n,div_n;\n\tbn_check_top(dv);\n\tbn_check_top(rm);\n\tbn_check_top(num);\n\tbn_check_top(divisor);\n\tif (BN_is_zero(divisor))\n\t\t{\n\t\tBNerr(BN_F_BN_DIV,BN_R_DIV_BY_ZERO);\n\t\treturn(0);\n\t\t}\n\tBN_CTX_start(ctx);\n\ttmp=BN_CTX_get(ctx);\n\tsnum=BN_CTX_get(ctx);\n\tsdiv=BN_CTX_get(ctx);\n\tif (dv == NULL)\n\t\tres=BN_CTX_get(ctx);\n\telse\tres=dv;\n\tif (sdiv == NULL || res == NULL) goto err;\n\tnorm_shift=BN_BITS2-((BN_num_bits(divisor))%BN_BITS2);\n\tif (!(BN_lshift(sdiv,divisor,norm_shift))) goto err;\n\tsdiv->neg=0;\n\tnorm_shift+=BN_BITS2;\n\tif (!(BN_lshift(snum,num,norm_shift))) goto err;\n\tsnum->neg=0;\n\tif (snum->top <= sdiv->top+1)\n\t\t{\n\t\tif (bn_wexpand(snum, sdiv->top + 2) == NULL) goto err;\n\t\tfor (i = snum->top; i < sdiv->top + 2; i++) snum->d[i] = 0;\n\t\tsnum->top = sdiv->top + 2;\n\t\t}\n\telse\n\t\t{\n\t\tif (bn_wexpand(snum, snum->top + 1) == NULL) goto err;\n\t\tsnum->d[snum->top] = 0;\n\t\tsnum->top ++;\n\t\t}\n\tdiv_n=sdiv->top;\n\tnum_n=snum->top;\n\tloop=num_n-div_n;\n\twnum.neg = 0;\n\twnum.d = &(snum->d[loop]);\n\twnum.top = div_n;\n\twnum.dmax = snum->dmax - loop;\n\td0=sdiv->d[div_n-1];\n\td1=(div_n == 1)?0:sdiv->d[div_n-2];\n\twnump= &(snum->d[num_n-1]);\n\tres->neg= (num->neg^divisor->neg);\n\tif (!bn_wexpand(res,(loop+1))) goto err;\n\tres->top=loop-1;\n\tresp= &(res->d[loop-1]);\n\tif (!bn_wexpand(tmp,(div_n+1))) goto err;\n\tif (res->top == 0)\n\t\tres->neg = 0;\n\telse\n\t\tresp--;\n\tfor (i=0; i<loop-1; i++, wnump--, resp--)\n\t\t{\n\t\tBN_ULONG q,l0;\n#if defined(BN_DIV3W) && !defined(OPENSSL_NO_ASM)\n\t\tBN_ULONG bn_div_3_words(BN_ULONG*,BN_ULONG,BN_ULONG);\n\t\tq=bn_div_3_words(wnump,d1,d0);\n#else\n\t\tBN_ULONG n0,n1,rem=0;\n\t\tn0=wnump[0];\n\t\tn1=wnump[-1];\n\t\tif (n0 == d0)\n\t\t\tq=BN_MASK2;\n\t\telse\n\t\t\t{\n#ifdef BN_LLONG\n\t\t\tBN_ULLONG t2;\n#if defined(BN_LLONG) && defined(BN_DIV2W) && !defined(bn_div_words)\n\t\t\tq=(BN_ULONG)(((((BN_ULLONG)n0)<<BN_BITS2)|n1)/d0);\n#else\n\t\t\tq=bn_div_words(n0,n1,d0);\n#ifdef BN_DEBUG_LEVITTE\n\t\t\tfprintf(stderr,"DEBUG: bn_div_words(0x%08X,0x%08X,0x%08\\\nX) -> 0x%08X\\n",\n\t\t\t\tn0, n1, d0, q);\n#endif\n#endif\n#ifndef REMAINDER_IS_ALREADY_CALCULATED\n\t\t\trem=(n1-q*d0)&BN_MASK2;\n#endif\n\t\t\tt2=(BN_ULLONG)d1*q;\n\t\t\tfor (;;)\n\t\t\t\t{\n\t\t\t\tif (t2 <= ((((BN_ULLONG)rem)<<BN_BITS2)|wnump[-2]))\n\t\t\t\t\tbreak;\n\t\t\t\tq--;\n\t\t\t\trem += d0;\n\t\t\t\tif (rem < d0) break;\n\t\t\t\tt2 -= d1;\n\t\t\t\t}\n#else\n\t\t\tBN_ULONG t2l,t2h,ql,qh;\n\t\t\tq=bn_div_words(n0,n1,d0);\n#ifdef BN_DEBUG_LEVITTE\n\t\t\tfprintf(stderr,"DEBUG: bn_div_words(0x%08X,0x%08X,0x%08\\\nX) -> 0x%08X\\n",\n\t\t\t\tn0, n1, d0, q);\n#endif\n#ifndef REMAINDER_IS_ALREADY_CALCULATED\n\t\t\trem=(n1-q*d0)&BN_MASK2;\n#endif\n#if defined(BN_UMULT_LOHI)\n\t\t\tBN_UMULT_LOHI(t2l,t2h,d1,q);\n#elif defined(BN_UMULT_HIGH)\n\t\t\tt2l = d1 * q;\n\t\t\tt2h = BN_UMULT_HIGH(d1,q);\n#else\n\t\t\tt2l=LBITS(d1); t2h=HBITS(d1);\n\t\t\tql =LBITS(q); qh =HBITS(q);\n\t\t\tmul64(t2l,t2h,ql,qh);\n#endif\n\t\t\tfor (;;)\n\t\t\t\t{\n\t\t\t\tif ((t2h < rem) ||\n\t\t\t\t\t((t2h == rem) && (t2l <= wnump[-2])))\n\t\t\t\t\tbreak;\n\t\t\t\tq--;\n\t\t\t\trem += d0;\n\t\t\t\tif (rem < d0) break;\n\t\t\t\tif (t2l < d1) t2h--; t2l -= d1;\n\t\t\t\t}\n#endif\n\t\t\t}\n#endif\n\t\tl0=bn_mul_words(tmp->d,sdiv->d,div_n,q);\n\t\ttmp->d[div_n]=l0;\n\t\twnum.d--;\n\t\tif (bn_sub_words(wnum.d, wnum.d, tmp->d, div_n+1))\n\t\t\t{\n\t\t\tq--;\n\t\t\tif (bn_add_words(wnum.d, wnum.d, sdiv->d, div_n))\n\t\t\t\t(*wnump)++;\n\t\t\t}\n\t\t*resp = q;\n\t\t}\n\tbn_correct_top(snum);\n\tif (rm != NULL)\n\t\t{\n\t\tint neg = num->neg;\n\t\tBN_rshift(rm,snum,norm_shift);\n\t\tif (!BN_is_zero(rm))\n\t\t\trm->neg = neg;\n\t\tbn_check_top(rm);\n\t\t}\n\tBN_CTX_end(ctx);\n\treturn(1);\nerr:\n\tbn_check_top(rm);\n\tBN_CTX_end(ctx);\n\treturn(0);\n\t}', 'void BN_CTX_end(BN_CTX *ctx)\n\t{\n\tCTXDBG_ENTRY("BN_CTX_end", ctx);\n\tif(ctx->err_stack)\n\t\tctx->err_stack--;\n\telse\n\t\t{\n\t\tunsigned int fp = BN_STACK_pop(&ctx->stack);\n\t\tif(fp < ctx->used)\n\t\t\tBN_POOL_release(&ctx->pool, ctx->used - fp);\n\t\tctx->used = fp;\n\t\tctx->too_many = 0;\n\t\t}\n\tCTXDBG_EXIT(ctx);\n\t}', 'static unsigned int BN_STACK_pop(BN_STACK *st)\n\t{\n\treturn st->indexes[--(st->depth)];\n\t}'] |
25,948 | 0 | https://github.com/openssl/openssl/blob/c15e95a61dacfc326cf9cdf05935ae8c6c97bcf6/ssl/t1_lib.c/#L3071 | static int tls_decrypt_ticket(SSL *s, const unsigned char *etick,
int eticklen, const unsigned char *sess_id,
int sesslen, SSL_SESSION **psess)
{
SSL_SESSION *sess;
unsigned char *sdec;
const unsigned char *p;
int slen, mlen, renew_ticket = 0;
unsigned char tick_hmac[EVP_MAX_MD_SIZE];
HMAC_CTX *hctx = NULL;
EVP_CIPHER_CTX *ctx;
SSL_CTX *tctx = s->initial_ctx;
if (eticklen < 48)
return 2;
hctx = HMAC_CTX_new();
if (hctx == NULL)
return -2;
ctx = EVP_CIPHER_CTX_new();
if (tctx->tlsext_ticket_key_cb) {
unsigned char *nctick = (unsigned char *)etick;
int rv = tctx->tlsext_ticket_key_cb(s, nctick, nctick + 16,
ctx, hctx, 0);
if (rv < 0)
return -1;
if (rv == 0)
return 2;
if (rv == 2)
renew_ticket = 1;
} else {
if (memcmp(etick, tctx->tlsext_tick_key_name, 16))
return 2;
if (HMAC_Init_ex(hctx, tctx->tlsext_tick_hmac_key, 16,
EVP_sha256(), NULL) <= 0
|| EVP_DecryptInit_ex(ctx, EVP_aes_128_cbc(), NULL,
tctx->tlsext_tick_aes_key,
etick + 16) <= 0) {
goto err;
}
}
mlen = HMAC_size(hctx);
if (mlen < 0) {
goto err;
}
eticklen -= mlen;
if (HMAC_Update(hctx, etick, eticklen) <= 0
|| HMAC_Final(hctx, tick_hmac, NULL) <= 0) {
goto err;
}
HMAC_CTX_free(hctx);
if (CRYPTO_memcmp(tick_hmac, etick + eticklen, mlen)) {
EVP_CIPHER_CTX_free(ctx);
return 2;
}
p = etick + 16 + EVP_CIPHER_CTX_iv_length(ctx);
eticklen -= 16 + EVP_CIPHER_CTX_iv_length(ctx);
sdec = OPENSSL_malloc(eticklen);
if (sdec == NULL
|| EVP_DecryptUpdate(ctx, sdec, &slen, p, eticklen) <= 0) {
EVP_CIPHER_CTX_free(ctx);
return -1;
}
if (EVP_DecryptFinal(ctx, sdec + slen, &mlen) <= 0) {
EVP_CIPHER_CTX_free(ctx);
OPENSSL_free(sdec);
return 2;
}
slen += mlen;
EVP_CIPHER_CTX_free(ctx);
ctx = NULL;
p = sdec;
sess = d2i_SSL_SESSION(NULL, &p, slen);
OPENSSL_free(sdec);
if (sess) {
if (sesslen)
memcpy(sess->session_id, sess_id, sesslen);
sess->session_id_length = sesslen;
*psess = sess;
if (renew_ticket)
return 4;
else
return 3;
}
ERR_clear_error();
return 2;
err:
EVP_CIPHER_CTX_free(ctx);
HMAC_CTX_free(hctx);
return -1;
} | ['static int tls_decrypt_ticket(SSL *s, const unsigned char *etick,\n int eticklen, const unsigned char *sess_id,\n int sesslen, SSL_SESSION **psess)\n{\n SSL_SESSION *sess;\n unsigned char *sdec;\n const unsigned char *p;\n int slen, mlen, renew_ticket = 0;\n unsigned char tick_hmac[EVP_MAX_MD_SIZE];\n HMAC_CTX *hctx = NULL;\n EVP_CIPHER_CTX *ctx;\n SSL_CTX *tctx = s->initial_ctx;\n if (eticklen < 48)\n return 2;\n hctx = HMAC_CTX_new();\n if (hctx == NULL)\n return -2;\n ctx = EVP_CIPHER_CTX_new();\n if (tctx->tlsext_ticket_key_cb) {\n unsigned char *nctick = (unsigned char *)etick;\n int rv = tctx->tlsext_ticket_key_cb(s, nctick, nctick + 16,\n ctx, hctx, 0);\n if (rv < 0)\n return -1;\n if (rv == 0)\n return 2;\n if (rv == 2)\n renew_ticket = 1;\n } else {\n if (memcmp(etick, tctx->tlsext_tick_key_name, 16))\n return 2;\n if (HMAC_Init_ex(hctx, tctx->tlsext_tick_hmac_key, 16,\n EVP_sha256(), NULL) <= 0\n || EVP_DecryptInit_ex(ctx, EVP_aes_128_cbc(), NULL,\n tctx->tlsext_tick_aes_key,\n etick + 16) <= 0) {\n goto err;\n }\n }\n mlen = HMAC_size(hctx);\n if (mlen < 0) {\n goto err;\n }\n eticklen -= mlen;\n if (HMAC_Update(hctx, etick, eticklen) <= 0\n || HMAC_Final(hctx, tick_hmac, NULL) <= 0) {\n goto err;\n }\n HMAC_CTX_free(hctx);\n if (CRYPTO_memcmp(tick_hmac, etick + eticklen, mlen)) {\n EVP_CIPHER_CTX_free(ctx);\n return 2;\n }\n p = etick + 16 + EVP_CIPHER_CTX_iv_length(ctx);\n eticklen -= 16 + EVP_CIPHER_CTX_iv_length(ctx);\n sdec = OPENSSL_malloc(eticklen);\n if (sdec == NULL\n || EVP_DecryptUpdate(ctx, sdec, &slen, p, eticklen) <= 0) {\n EVP_CIPHER_CTX_free(ctx);\n return -1;\n }\n if (EVP_DecryptFinal(ctx, sdec + slen, &mlen) <= 0) {\n EVP_CIPHER_CTX_free(ctx);\n OPENSSL_free(sdec);\n return 2;\n }\n slen += mlen;\n EVP_CIPHER_CTX_free(ctx);\n ctx = NULL;\n p = sdec;\n sess = d2i_SSL_SESSION(NULL, &p, slen);\n OPENSSL_free(sdec);\n if (sess) {\n if (sesslen)\n memcpy(sess->session_id, sess_id, sesslen);\n sess->session_id_length = sesslen;\n *psess = sess;\n if (renew_ticket)\n return 4;\n else\n return 3;\n }\n ERR_clear_error();\n return 2;\nerr:\n EVP_CIPHER_CTX_free(ctx);\n HMAC_CTX_free(hctx);\n return -1;\n}', 'HMAC_CTX *HMAC_CTX_new(void)\n{\n HMAC_CTX *ctx = OPENSSL_zalloc(sizeof(HMAC_CTX));\n if (ctx != NULL) {\n if (!HMAC_CTX_reset(ctx)) {\n HMAC_CTX_free(ctx);\n return NULL;\n }\n }\n return ctx;\n}', 'void *CRYPTO_zalloc(size_t num, const char *file, int line)\n{\n void *ret = CRYPTO_malloc(num, file, line);\n if (ret != NULL)\n memset(ret, 0, num);\n return ret;\n}', 'void *CRYPTO_malloc(size_t num, const char *file, int line)\n{\n void *ret = NULL;\n if (num <= 0)\n return NULL;\n allow_customize = 0;\n#ifndef OPENSSL_NO_CRYPTO_MDEBUG\n if (call_malloc_debug) {\n CRYPTO_mem_debug_malloc(NULL, num, 0, file, line);\n ret = malloc(num);\n CRYPTO_mem_debug_malloc(ret, num, 1, file, line);\n } else {\n ret = malloc(num);\n }\n#else\n (void)file;\n (void)line;\n ret = malloc(num);\n#endif\n#ifndef OPENSSL_CPUID_OBJ\n if (ret && (num > 2048)) {\n extern unsigned char cleanse_ctr;\n ((unsigned char *)ret)[0] = cleanse_ctr;\n }\n#endif\n return ret;\n}', 'EVP_CIPHER_CTX *EVP_CIPHER_CTX_new(void)\n{\n return OPENSSL_zalloc(sizeof(EVP_CIPHER_CTX));\n}'] |
25,949 | 1 | https://github.com/libav/libav/blob/63e8d9760f23a4edf81e9ae58c4f6d3baa6ff4dd/libavcodec/mpegaudiodec.c/#L683 | static void apply_window_mp3_c(MPA_INT *synth_buf, MPA_INT *window,
int *dither_state, OUT_INT *samples, int incr)
{
register const MPA_INT *w, *w2, *p;
int j;
OUT_INT *samples2;
#if CONFIG_FLOAT
float sum, sum2;
#elif FRAC_BITS <= 15
int sum, sum2;
#else
int64_t sum, sum2;
#endif
memcpy(synth_buf + 512, synth_buf, 32 * sizeof(*synth_buf));
samples2 = samples + 31 * incr;
w = window;
w2 = window + 31;
sum = *dither_state;
p = synth_buf + 16;
SUM8(MACS, sum, w, p);
p = synth_buf + 48;
SUM8(MLSS, sum, w + 32, p);
*samples = round_sample(&sum);
samples += incr;
w++;
for(j=1;j<16;j++) {
sum2 = 0;
p = synth_buf + 16 + j;
SUM8P2(sum, MACS, sum2, MLSS, w, w2, p);
p = synth_buf + 48 - j;
SUM8P2(sum, MLSS, sum2, MLSS, w + 32, w2 + 32, p);
*samples = round_sample(&sum);
samples += incr;
sum += sum2;
*samples2 = round_sample(&sum);
samples2 -= incr;
w++;
w2--;
}
p = synth_buf + 32;
SUM8(MLSS, sum, w + 32, p);
*samples = round_sample(&sum);
*dither_state= sum;
} | ['static void mpc_synth(MPCContext *c, int16_t *out)\n{\n int dither_state = 0;\n int i, ch;\n OUT_INT samples[MPA_MAX_CHANNELS * MPA_FRAME_SIZE], *samples_ptr;\n for(ch = 0; ch < 2; ch++){\n samples_ptr = samples + ch;\n for(i = 0; i < SAMPLES_PER_BAND; i++) {\n ff_mpa_synth_filter(c->synth_buf[ch], &(c->synth_buf_offset[ch]),\n ff_mpa_synth_window, &dither_state,\n samples_ptr, 2,\n c->sb_samples[ch][i]);\n samples_ptr += 64;\n }\n }\n for(i = 0; i < MPC_FRAME_SIZE*2; i++)\n *out++=samples[i];\n}', 'void ff_mpa_synth_filter(MPA_INT *synth_buf_ptr, int *synth_buf_offset,\n MPA_INT *window, int *dither_state,\n OUT_INT *samples, int incr,\n INTFLOAT sb_samples[SBLIMIT])\n{\n register MPA_INT *synth_buf;\n int offset;\n#if FRAC_BITS <= 15\n int32_t tmp[32];\n int j;\n#endif\n offset = *synth_buf_offset;\n synth_buf = synth_buf_ptr + offset;\n#if FRAC_BITS <= 15\n dct32(tmp, sb_samples);\n for(j=0;j<32;j++) {\n synth_buf[j] = av_clip_int16(tmp[j]);\n }\n#else\n dct32(synth_buf, sb_samples);\n#endif\n apply_window_mp3_c(synth_buf, window, dither_state, samples, incr);\n offset = (offset - 32) & 511;\n *synth_buf_offset = offset;\n}', 'static void apply_window_mp3_c(MPA_INT *synth_buf, MPA_INT *window,\n int *dither_state, OUT_INT *samples, int incr)\n{\n register const MPA_INT *w, *w2, *p;\n int j;\n OUT_INT *samples2;\n#if CONFIG_FLOAT\n float sum, sum2;\n#elif FRAC_BITS <= 15\n int sum, sum2;\n#else\n int64_t sum, sum2;\n#endif\n memcpy(synth_buf + 512, synth_buf, 32 * sizeof(*synth_buf));\n samples2 = samples + 31 * incr;\n w = window;\n w2 = window + 31;\n sum = *dither_state;\n p = synth_buf + 16;\n SUM8(MACS, sum, w, p);\n p = synth_buf + 48;\n SUM8(MLSS, sum, w + 32, p);\n *samples = round_sample(&sum);\n samples += incr;\n w++;\n for(j=1;j<16;j++) {\n sum2 = 0;\n p = synth_buf + 16 + j;\n SUM8P2(sum, MACS, sum2, MLSS, w, w2, p);\n p = synth_buf + 48 - j;\n SUM8P2(sum, MLSS, sum2, MLSS, w + 32, w2 + 32, p);\n *samples = round_sample(&sum);\n samples += incr;\n sum += sum2;\n *samples2 = round_sample(&sum);\n samples2 -= incr;\n w++;\n w2--;\n }\n p = synth_buf + 32;\n SUM8(MLSS, sum, w + 32, p);\n *samples = round_sample(&sum);\n *dither_state= sum;\n}'] |
25,950 | 0 | https://github.com/openssl/openssl/blob/e02c519cd32a55e6ad39a0cfbeeda775f9115f28/crypto/bn/bn_ctx.c/#L276 | static unsigned int BN_STACK_pop(BN_STACK *st)
{
return st->indexes[--(st->depth)];
} | ['static int rsa_ossl_mod_exp(BIGNUM *r0, const BIGNUM *I, RSA *rsa, BN_CTX *ctx)\n{\n BIGNUM *r1, *m1, *vrfy, *r2, *m[RSA_MAX_PRIME_NUM - 2];\n int ret = 0, i, ex_primes = 0, smooth = 0;\n RSA_PRIME_INFO *pinfo;\n BN_CTX_start(ctx);\n r1 = BN_CTX_get(ctx);\n r2 = BN_CTX_get(ctx);\n m1 = BN_CTX_get(ctx);\n vrfy = BN_CTX_get(ctx);\n if (vrfy == NULL)\n goto err;\n if (rsa->version == RSA_ASN1_VERSION_MULTI\n && ((ex_primes = sk_RSA_PRIME_INFO_num(rsa->prime_infos)) <= 0\n || ex_primes > RSA_MAX_PRIME_NUM - 2))\n goto err;\n if (rsa->flags & RSA_FLAG_CACHE_PRIVATE) {\n BIGNUM *factor = BN_new();\n if (factor == NULL)\n goto err;\n if (!(BN_with_flags(factor, rsa->p, BN_FLG_CONSTTIME),\n BN_MONT_CTX_set_locked(&rsa->_method_mod_p, rsa->lock,\n factor, ctx))\n || !(BN_with_flags(factor, rsa->q, BN_FLG_CONSTTIME),\n BN_MONT_CTX_set_locked(&rsa->_method_mod_q, rsa->lock,\n factor, ctx))) {\n BN_free(factor);\n goto err;\n }\n for (i = 0; i < ex_primes; i++) {\n pinfo = sk_RSA_PRIME_INFO_value(rsa->prime_infos, i);\n BN_with_flags(factor, pinfo->r, BN_FLG_CONSTTIME);\n if (!BN_MONT_CTX_set_locked(&pinfo->m, rsa->lock, factor, ctx)) {\n BN_free(factor);\n goto err;\n }\n }\n BN_free(factor);\n smooth = (ex_primes == 0)\n && (rsa->meth->bn_mod_exp == BN_mod_exp_mont)\n && (BN_num_bits(rsa->q) == BN_num_bits(rsa->p));\n }\n if (rsa->flags & RSA_FLAG_CACHE_PUBLIC)\n if (!BN_MONT_CTX_set_locked(&rsa->_method_mod_n, rsa->lock,\n rsa->n, ctx))\n goto err;\n if (smooth) {\n if (\n !bn_from_mont_fixed_top(m1, I, rsa->_method_mod_q, ctx)\n || !bn_to_mont_fixed_top(m1, m1, rsa->_method_mod_q, ctx)\n || !BN_mod_exp_mont_consttime(m1, m1, rsa->dmq1, rsa->q, ctx,\n rsa->_method_mod_q)\n || !bn_from_mont_fixed_top(r1, I, rsa->_method_mod_p, ctx)\n || !bn_to_mont_fixed_top(r1, r1, rsa->_method_mod_p, ctx)\n || !BN_mod_exp_mont_consttime(r1, r1, rsa->dmp1, rsa->p, ctx,\n rsa->_method_mod_p)\n || !bn_mod_sub_fixed_top(r1, r1, m1, rsa->p)\n || !bn_to_mont_fixed_top(r1, r1, rsa->_method_mod_p, ctx)\n || !bn_mul_mont_fixed_top(r1, r1, rsa->iqmp, rsa->_method_mod_p,\n ctx)\n || !bn_mul_fixed_top(r0, r1, rsa->q, ctx)\n || !bn_mod_add_fixed_top(r0, r0, m1, rsa->n))\n goto err;\n goto tail;\n }\n {\n BIGNUM *c = BN_new();\n if (c == NULL)\n goto err;\n BN_with_flags(c, I, BN_FLG_CONSTTIME);\n if (!BN_mod(r1, c, rsa->q, ctx)) {\n BN_free(c);\n goto err;\n }\n {\n BIGNUM *dmq1 = BN_new();\n if (dmq1 == NULL) {\n BN_free(c);\n goto err;\n }\n BN_with_flags(dmq1, rsa->dmq1, BN_FLG_CONSTTIME);\n if (!rsa->meth->bn_mod_exp(m1, r1, dmq1, rsa->q, ctx,\n rsa->_method_mod_q)) {\n BN_free(c);\n BN_free(dmq1);\n goto err;\n }\n BN_free(dmq1);\n }\n if (!BN_mod(r1, c, rsa->p, ctx)) {\n BN_free(c);\n goto err;\n }\n BN_free(c);\n }\n {\n BIGNUM *dmp1 = BN_new();\n if (dmp1 == NULL)\n goto err;\n BN_with_flags(dmp1, rsa->dmp1, BN_FLG_CONSTTIME);\n if (!rsa->meth->bn_mod_exp(r0, r1, dmp1, rsa->p, ctx,\n rsa->_method_mod_p)) {\n BN_free(dmp1);\n goto err;\n }\n BN_free(dmp1);\n }\n if (ex_primes > 0) {\n BIGNUM *di = BN_new(), *cc = BN_new();\n if (cc == NULL || di == NULL) {\n BN_free(cc);\n BN_free(di);\n goto err;\n }\n for (i = 0; i < ex_primes; i++) {\n if ((m[i] = BN_CTX_get(ctx)) == NULL) {\n BN_free(cc);\n BN_free(di);\n goto err;\n }\n pinfo = sk_RSA_PRIME_INFO_value(rsa->prime_infos, i);\n BN_with_flags(cc, I, BN_FLG_CONSTTIME);\n BN_with_flags(di, pinfo->d, BN_FLG_CONSTTIME);\n if (!BN_mod(r1, cc, pinfo->r, ctx)) {\n BN_free(cc);\n BN_free(di);\n goto err;\n }\n if (!rsa->meth->bn_mod_exp(m[i], r1, di, pinfo->r, ctx, pinfo->m)) {\n BN_free(cc);\n BN_free(di);\n goto err;\n }\n }\n BN_free(cc);\n BN_free(di);\n }\n if (!BN_sub(r0, r0, m1))\n goto err;\n if (BN_is_negative(r0))\n if (!BN_add(r0, r0, rsa->p))\n goto err;\n if (!BN_mul(r1, r0, rsa->iqmp, ctx))\n goto err;\n {\n BIGNUM *pr1 = BN_new();\n if (pr1 == NULL)\n goto err;\n BN_with_flags(pr1, r1, BN_FLG_CONSTTIME);\n if (!BN_mod(r0, pr1, rsa->p, ctx)) {\n BN_free(pr1);\n goto err;\n }\n BN_free(pr1);\n }\n if (BN_is_negative(r0))\n if (!BN_add(r0, r0, rsa->p))\n goto err;\n if (!BN_mul(r1, r0, rsa->q, ctx))\n goto err;\n if (!BN_add(r0, r1, m1))\n goto err;\n if (ex_primes > 0) {\n BIGNUM *pr2 = BN_new();\n if (pr2 == NULL)\n goto err;\n for (i = 0; i < ex_primes; i++) {\n pinfo = sk_RSA_PRIME_INFO_value(rsa->prime_infos, i);\n if (!BN_sub(r1, m[i], r0)) {\n BN_free(pr2);\n goto err;\n }\n if (!BN_mul(r2, r1, pinfo->t, ctx)) {\n BN_free(pr2);\n goto err;\n }\n BN_with_flags(pr2, r2, BN_FLG_CONSTTIME);\n if (!BN_mod(r1, pr2, pinfo->r, ctx)) {\n BN_free(pr2);\n goto err;\n }\n if (BN_is_negative(r1))\n if (!BN_add(r1, r1, pinfo->r)) {\n BN_free(pr2);\n goto err;\n }\n if (!BN_mul(r1, r1, pinfo->pp, ctx)) {\n BN_free(pr2);\n goto err;\n }\n if (!BN_add(r0, r0, r1)) {\n BN_free(pr2);\n goto err;\n }\n }\n BN_free(pr2);\n }\n tail:\n if (rsa->e && rsa->n) {\n if (rsa->meth->bn_mod_exp == BN_mod_exp_mont) {\n if (!BN_mod_exp_mont(vrfy, r0, rsa->e, rsa->n, ctx,\n rsa->_method_mod_n))\n goto err;\n } else {\n bn_correct_top(r0);\n if (!rsa->meth->bn_mod_exp(vrfy, r0, rsa->e, rsa->n, ctx,\n rsa->_method_mod_n))\n goto err;\n }\n if (!BN_sub(vrfy, vrfy, I))\n goto err;\n if (BN_is_zero(vrfy)) {\n bn_correct_top(r0);\n ret = 1;\n goto err;\n }\n if (!BN_mod(vrfy, vrfy, rsa->n, ctx))\n goto err;\n if (BN_is_negative(vrfy))\n if (!BN_add(vrfy, vrfy, rsa->n))\n goto err;\n if (!BN_is_zero(vrfy)) {\n BIGNUM *d = BN_new();\n if (d == NULL)\n goto err;\n BN_with_flags(d, rsa->d, BN_FLG_CONSTTIME);\n if (!rsa->meth->bn_mod_exp(r0, I, d, rsa->n, ctx,\n rsa->_method_mod_n)) {\n BN_free(d);\n goto err;\n }\n BN_free(d);\n }\n }\n bn_correct_top(r0);\n ret = 1;\n err:\n BN_CTX_end(ctx);\n return ret;\n}', 'void BN_CTX_start(BN_CTX *ctx)\n{\n CTXDBG_ENTRY("BN_CTX_start", ctx);\n if (ctx->err_stack || ctx->too_many)\n ctx->err_stack++;\n else if (!BN_STACK_push(&ctx->stack, ctx->used)) {\n BNerr(BN_F_BN_CTX_START, BN_R_TOO_MANY_TEMPORARY_VARIABLES);\n ctx->err_stack++;\n }\n CTXDBG_EXIT(ctx);\n}', 'int BN_div(BIGNUM *dv, BIGNUM *rm, const BIGNUM *num, const BIGNUM *divisor,\n BN_CTX *ctx)\n{\n int norm_shift, i, loop;\n BIGNUM *tmp, wnum, *snum, *sdiv, *res;\n BN_ULONG *resp, *wnump;\n BN_ULONG d0, d1;\n int num_n, div_n;\n int no_branch = 0;\n if ((num->top > 0 && num->d[num->top - 1] == 0) ||\n (divisor->top > 0 && divisor->d[divisor->top - 1] == 0)) {\n BNerr(BN_F_BN_DIV, BN_R_NOT_INITIALIZED);\n return 0;\n }\n bn_check_top(num);\n bn_check_top(divisor);\n if ((BN_get_flags(num, BN_FLG_CONSTTIME) != 0)\n || (BN_get_flags(divisor, BN_FLG_CONSTTIME) != 0)) {\n no_branch = 1;\n }\n bn_check_top(dv);\n bn_check_top(rm);\n if (BN_is_zero(divisor)) {\n BNerr(BN_F_BN_DIV, BN_R_DIV_BY_ZERO);\n return 0;\n }\n if (!no_branch && BN_ucmp(num, divisor) < 0) {\n if (rm != NULL) {\n if (BN_copy(rm, num) == NULL)\n return 0;\n }\n if (dv != NULL)\n BN_zero(dv);\n return 1;\n }\n BN_CTX_start(ctx);\n res = (dv == NULL) ? BN_CTX_get(ctx) : dv;\n tmp = BN_CTX_get(ctx);\n snum = BN_CTX_get(ctx);\n sdiv = BN_CTX_get(ctx);\n if (sdiv == NULL)\n goto err;\n norm_shift = BN_BITS2 - ((BN_num_bits(divisor)) % BN_BITS2);\n if (!(BN_lshift(sdiv, divisor, norm_shift)))\n goto err;\n sdiv->neg = 0;\n norm_shift += BN_BITS2;\n if (!(BN_lshift(snum, num, norm_shift)))\n goto err;\n snum->neg = 0;\n if (no_branch) {\n if (snum->top <= sdiv->top + 1) {\n if (bn_wexpand(snum, sdiv->top + 2) == NULL)\n goto err;\n for (i = snum->top; i < sdiv->top + 2; i++)\n snum->d[i] = 0;\n snum->top = sdiv->top + 2;\n } else {\n if (bn_wexpand(snum, snum->top + 1) == NULL)\n goto err;\n snum->d[snum->top] = 0;\n snum->top++;\n }\n }\n div_n = sdiv->top;\n num_n = snum->top;\n loop = num_n - div_n;\n wnum.neg = 0;\n wnum.d = &(snum->d[loop]);\n wnum.top = div_n;\n wnum.flags = BN_FLG_STATIC_DATA;\n wnum.dmax = snum->dmax - loop;\n d0 = sdiv->d[div_n - 1];\n d1 = (div_n == 1) ? 0 : sdiv->d[div_n - 2];\n wnump = &(snum->d[num_n - 1]);\n if (!bn_wexpand(res, (loop + 1)))\n goto err;\n res->neg = (num->neg ^ divisor->neg);\n res->top = loop - no_branch;\n resp = &(res->d[loop - 1]);\n if (!bn_wexpand(tmp, (div_n + 1)))\n goto err;\n if (!no_branch) {\n if (BN_ucmp(&wnum, sdiv) >= 0) {\n bn_clear_top2max(&wnum);\n bn_sub_words(wnum.d, wnum.d, sdiv->d, div_n);\n *resp = 1;\n } else\n res->top--;\n }\n resp++;\n if (res->top == 0)\n res->neg = 0;\n else\n resp--;\n for (i = 0; i < loop - 1; i++, wnump--) {\n BN_ULONG q, l0;\n# if defined(BN_DIV3W) && !defined(OPENSSL_NO_ASM)\n BN_ULONG bn_div_3_words(BN_ULONG *, BN_ULONG, BN_ULONG);\n q = bn_div_3_words(wnump, d1, d0);\n# else\n BN_ULONG n0, n1, rem = 0;\n n0 = wnump[0];\n n1 = wnump[-1];\n if (n0 == d0)\n q = BN_MASK2;\n else {\n# ifdef BN_LLONG\n BN_ULLONG t2;\n# if defined(BN_LLONG) && defined(BN_DIV2W) && !defined(bn_div_words)\n q = (BN_ULONG)(((((BN_ULLONG) n0) << BN_BITS2) | n1) / d0);\n# else\n q = bn_div_words(n0, n1, d0);\n# endif\n# ifndef REMAINDER_IS_ALREADY_CALCULATED\n rem = (n1 - q * d0) & BN_MASK2;\n# endif\n t2 = (BN_ULLONG) d1 *q;\n for (;;) {\n if (t2 <= ((((BN_ULLONG) rem) << BN_BITS2) | wnump[-2]))\n break;\n q--;\n rem += d0;\n if (rem < d0)\n break;\n t2 -= d1;\n }\n# else\n BN_ULONG t2l, t2h;\n q = bn_div_words(n0, n1, d0);\n# ifndef REMAINDER_IS_ALREADY_CALCULATED\n rem = (n1 - q * d0) & BN_MASK2;\n# endif\n# if defined(BN_UMULT_LOHI)\n BN_UMULT_LOHI(t2l, t2h, d1, q);\n# elif defined(BN_UMULT_HIGH)\n t2l = d1 * q;\n t2h = BN_UMULT_HIGH(d1, q);\n# else\n {\n BN_ULONG ql, qh;\n t2l = LBITS(d1);\n t2h = HBITS(d1);\n ql = LBITS(q);\n qh = HBITS(q);\n mul64(t2l, t2h, ql, qh);\n }\n# endif\n for (;;) {\n if ((t2h < rem) || ((t2h == rem) && (t2l <= wnump[-2])))\n break;\n q--;\n rem += d0;\n if (rem < d0)\n break;\n if (t2l < d1)\n t2h--;\n t2l -= d1;\n }\n# endif\n }\n# endif\n l0 = bn_mul_words(tmp->d, sdiv->d, div_n, q);\n tmp->d[div_n] = l0;\n wnum.d--;\n if (bn_sub_words(wnum.d, wnum.d, tmp->d, div_n + 1)) {\n q--;\n if (bn_add_words(wnum.d, wnum.d, sdiv->d, div_n))\n (*wnump)++;\n }\n resp--;\n *resp = q;\n }\n bn_correct_top(snum);\n if (rm != NULL) {\n int neg = num->neg;\n BN_rshift(rm, snum, norm_shift);\n if (!BN_is_zero(rm))\n rm->neg = neg;\n bn_check_top(rm);\n }\n if (no_branch)\n bn_correct_top(res);\n BN_CTX_end(ctx);\n return 1;\n err:\n bn_check_top(rm);\n BN_CTX_end(ctx);\n return 0;\n}', 'int BN_mul(BIGNUM *r, const BIGNUM *a, const BIGNUM *b, BN_CTX *ctx)\n{\n int ret = bn_mul_fixed_top(r, a, b, ctx);\n bn_correct_top(r);\n bn_check_top(r);\n return ret;\n}', 'int bn_mul_fixed_top(BIGNUM *r, const BIGNUM *a, const BIGNUM *b, BN_CTX *ctx)\n{\n int ret = 0;\n int top, al, bl;\n BIGNUM *rr;\n#if defined(BN_MUL_COMBA) || defined(BN_RECURSION)\n int i;\n#endif\n#ifdef BN_RECURSION\n BIGNUM *t = NULL;\n int j = 0, k;\n#endif\n bn_check_top(a);\n bn_check_top(b);\n bn_check_top(r);\n al = a->top;\n bl = b->top;\n if ((al == 0) || (bl == 0)) {\n BN_zero(r);\n return 1;\n }\n top = al + bl;\n BN_CTX_start(ctx);\n if ((r == a) || (r == b)) {\n if ((rr = BN_CTX_get(ctx)) == NULL)\n goto err;\n } else\n rr = r;\n#if defined(BN_MUL_COMBA) || defined(BN_RECURSION)\n i = al - bl;\n#endif\n#ifdef BN_MUL_COMBA\n if (i == 0) {\n# if 0\n if (al == 4) {\n if (bn_wexpand(rr, 8) == NULL)\n goto err;\n rr->top = 8;\n bn_mul_comba4(rr->d, a->d, b->d);\n goto end;\n }\n# endif\n if (al == 8) {\n if (bn_wexpand(rr, 16) == NULL)\n goto err;\n rr->top = 16;\n bn_mul_comba8(rr->d, a->d, b->d);\n goto end;\n }\n }\n#endif\n#ifdef BN_RECURSION\n if ((al >= BN_MULL_SIZE_NORMAL) && (bl >= BN_MULL_SIZE_NORMAL)) {\n if (i >= -1 && i <= 1) {\n if (i >= 0) {\n j = BN_num_bits_word((BN_ULONG)al);\n }\n if (i == -1) {\n j = BN_num_bits_word((BN_ULONG)bl);\n }\n j = 1 << (j - 1);\n assert(j <= al || j <= bl);\n k = j + j;\n t = BN_CTX_get(ctx);\n if (t == NULL)\n goto err;\n if (al > j || bl > j) {\n if (bn_wexpand(t, k * 4) == NULL)\n goto err;\n if (bn_wexpand(rr, k * 4) == NULL)\n goto err;\n bn_mul_part_recursive(rr->d, a->d, b->d,\n j, al - j, bl - j, t->d);\n } else {\n if (bn_wexpand(t, k * 2) == NULL)\n goto err;\n if (bn_wexpand(rr, k * 2) == NULL)\n goto err;\n bn_mul_recursive(rr->d, a->d, b->d, j, al - j, bl - j, t->d);\n }\n rr->top = top;\n goto end;\n }\n }\n#endif\n if (bn_wexpand(rr, top) == NULL)\n goto err;\n rr->top = top;\n bn_mul_normal(rr->d, a->d, al, b->d, bl);\n#if defined(BN_MUL_COMBA) || defined(BN_RECURSION)\n end:\n#endif\n rr->neg = a->neg ^ b->neg;\n rr->flags |= BN_FLG_FIXED_TOP;\n if (r != rr && BN_copy(r, rr) == NULL)\n goto err;\n ret = 1;\n err:\n bn_check_top(r);\n BN_CTX_end(ctx);\n return ret;\n}', 'int BN_mod_exp_mont(BIGNUM *rr, const BIGNUM *a, const BIGNUM *p,\n const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *in_mont)\n{\n int i, j, bits, ret = 0, wstart, wend, window, wvalue;\n int start = 1;\n BIGNUM *d, *r;\n const BIGNUM *aa;\n BIGNUM *val[TABLE_SIZE];\n BN_MONT_CTX *mont = NULL;\n if (BN_get_flags(p, BN_FLG_CONSTTIME) != 0\n || BN_get_flags(a, BN_FLG_CONSTTIME) != 0\n || BN_get_flags(m, BN_FLG_CONSTTIME) != 0) {\n return BN_mod_exp_mont_consttime(rr, a, p, m, ctx, in_mont);\n }\n bn_check_top(a);\n bn_check_top(p);\n bn_check_top(m);\n if (!BN_is_odd(m)) {\n BNerr(BN_F_BN_MOD_EXP_MONT, BN_R_CALLED_WITH_EVEN_MODULUS);\n return 0;\n }\n bits = BN_num_bits(p);\n if (bits == 0) {\n if (BN_abs_is_word(m, 1)) {\n ret = 1;\n BN_zero(rr);\n } else {\n ret = BN_one(rr);\n }\n return ret;\n }\n BN_CTX_start(ctx);\n d = BN_CTX_get(ctx);\n r = BN_CTX_get(ctx);\n val[0] = BN_CTX_get(ctx);\n if (val[0] == NULL)\n goto err;\n if (in_mont != NULL)\n mont = in_mont;\n else {\n if ((mont = BN_MONT_CTX_new()) == NULL)\n goto err;\n if (!BN_MONT_CTX_set(mont, m, ctx))\n goto err;\n }\n if (a->neg || BN_ucmp(a, m) >= 0) {\n if (!BN_nnmod(val[0], a, m, ctx))\n goto err;\n aa = val[0];\n } else\n aa = a;\n if (!bn_to_mont_fixed_top(val[0], aa, mont, ctx))\n goto err;\n window = BN_window_bits_for_exponent_size(bits);\n if (window > 1) {\n if (!bn_mul_mont_fixed_top(d, val[0], val[0], mont, ctx))\n goto err;\n j = 1 << (window - 1);\n for (i = 1; i < j; i++) {\n if (((val[i] = BN_CTX_get(ctx)) == NULL) ||\n !bn_mul_mont_fixed_top(val[i], val[i - 1], d, mont, ctx))\n goto err;\n }\n }\n start = 1;\n wvalue = 0;\n wstart = bits - 1;\n wend = 0;\n#if 1\n j = m->top;\n if (m->d[j - 1] & (((BN_ULONG)1) << (BN_BITS2 - 1))) {\n if (bn_wexpand(r, j) == NULL)\n goto err;\n r->d[0] = (0 - m->d[0]) & BN_MASK2;\n for (i = 1; i < j; i++)\n r->d[i] = (~m->d[i]) & BN_MASK2;\n r->top = j;\n r->flags |= BN_FLG_FIXED_TOP;\n } else\n#endif\n if (!bn_to_mont_fixed_top(r, BN_value_one(), mont, ctx))\n goto err;\n for (;;) {\n if (BN_is_bit_set(p, wstart) == 0) {\n if (!start) {\n if (!bn_mul_mont_fixed_top(r, r, r, mont, ctx))\n goto err;\n }\n if (wstart == 0)\n break;\n wstart--;\n continue;\n }\n j = wstart;\n wvalue = 1;\n wend = 0;\n for (i = 1; i < window; i++) {\n if (wstart - i < 0)\n break;\n if (BN_is_bit_set(p, wstart - i)) {\n wvalue <<= (i - wend);\n wvalue |= 1;\n wend = i;\n }\n }\n j = wend + 1;\n if (!start)\n for (i = 0; i < j; i++) {\n if (!bn_mul_mont_fixed_top(r, r, r, mont, ctx))\n goto err;\n }\n if (!bn_mul_mont_fixed_top(r, r, val[wvalue >> 1], mont, ctx))\n goto err;\n wstart -= wend + 1;\n wvalue = 0;\n start = 0;\n if (wstart < 0)\n break;\n }\n#if defined(SPARC_T4_MONT)\n if (OPENSSL_sparcv9cap_P[0] & (SPARCV9_VIS3 | SPARCV9_PREFER_FPU)) {\n j = mont->N.top;\n val[0]->d[0] = 1;\n for (i = 1; i < j; i++)\n val[0]->d[i] = 0;\n val[0]->top = j;\n if (!BN_mod_mul_montgomery(rr, r, val[0], mont, ctx))\n goto err;\n } else\n#endif\n if (!BN_from_montgomery(rr, r, mont, ctx))\n goto err;\n ret = 1;\n err:\n if (in_mont == NULL)\n BN_MONT_CTX_free(mont);\n BN_CTX_end(ctx);\n bn_check_top(rr);\n return ret;\n}', 'int BN_mod_exp_mont_consttime(BIGNUM *rr, const BIGNUM *a, const BIGNUM *p,\n const BIGNUM *m, BN_CTX *ctx,\n BN_MONT_CTX *in_mont)\n{\n int i, bits, ret = 0, window, wvalue, wmask, window0;\n int top;\n BN_MONT_CTX *mont = NULL;\n int numPowers;\n unsigned char *powerbufFree = NULL;\n int powerbufLen = 0;\n unsigned char *powerbuf = NULL;\n BIGNUM tmp, am;\n#if defined(SPARC_T4_MONT)\n unsigned int t4 = 0;\n#endif\n bn_check_top(a);\n bn_check_top(p);\n bn_check_top(m);\n if (!BN_is_odd(m)) {\n BNerr(BN_F_BN_MOD_EXP_MONT_CONSTTIME, BN_R_CALLED_WITH_EVEN_MODULUS);\n return 0;\n }\n top = m->top;\n bits = p->top * BN_BITS2;\n if (bits == 0) {\n if (BN_abs_is_word(m, 1)) {\n ret = 1;\n BN_zero(rr);\n } else {\n ret = BN_one(rr);\n }\n return ret;\n }\n BN_CTX_start(ctx);\n if (in_mont != NULL)\n mont = in_mont;\n else {\n if ((mont = BN_MONT_CTX_new()) == NULL)\n goto err;\n if (!BN_MONT_CTX_set(mont, m, ctx))\n goto err;\n }\n#ifdef RSAZ_ENABLED\n if (!a->neg) {\n if ((16 == a->top) && (16 == p->top) && (BN_num_bits(m) == 1024)\n && rsaz_avx2_eligible()) {\n if (NULL == bn_wexpand(rr, 16))\n goto err;\n RSAZ_1024_mod_exp_avx2(rr->d, a->d, p->d, m->d, mont->RR.d,\n mont->n0[0]);\n rr->top = 16;\n rr->neg = 0;\n bn_correct_top(rr);\n ret = 1;\n goto err;\n } else if ((8 == a->top) && (8 == p->top) && (BN_num_bits(m) == 512)) {\n if (NULL == bn_wexpand(rr, 8))\n goto err;\n RSAZ_512_mod_exp(rr->d, a->d, p->d, m->d, mont->n0[0], mont->RR.d);\n rr->top = 8;\n rr->neg = 0;\n bn_correct_top(rr);\n ret = 1;\n goto err;\n }\n }\n#endif\n window = BN_window_bits_for_ctime_exponent_size(bits);\n#if defined(SPARC_T4_MONT)\n if (window >= 5 && (top & 15) == 0 && top <= 64 &&\n (OPENSSL_sparcv9cap_P[1] & (CFR_MONTMUL | CFR_MONTSQR)) ==\n (CFR_MONTMUL | CFR_MONTSQR) && (t4 = OPENSSL_sparcv9cap_P[0]))\n window = 5;\n else\n#endif\n#if defined(OPENSSL_BN_ASM_MONT5)\n if (window >= 5) {\n window = 5;\n powerbufLen += top * sizeof(mont->N.d[0]);\n }\n#endif\n (void)0;\n numPowers = 1 << window;\n powerbufLen += sizeof(m->d[0]) * (top * numPowers +\n ((2 * top) >\n numPowers ? (2 * top) : numPowers));\n#ifdef alloca\n if (powerbufLen < 3072)\n powerbufFree =\n alloca(powerbufLen + MOD_EXP_CTIME_MIN_CACHE_LINE_WIDTH);\n else\n#endif\n if ((powerbufFree =\n OPENSSL_malloc(powerbufLen + MOD_EXP_CTIME_MIN_CACHE_LINE_WIDTH))\n == NULL)\n goto err;\n powerbuf = MOD_EXP_CTIME_ALIGN(powerbufFree);\n memset(powerbuf, 0, powerbufLen);\n#ifdef alloca\n if (powerbufLen < 3072)\n powerbufFree = NULL;\n#endif\n tmp.d = (BN_ULONG *)(powerbuf + sizeof(m->d[0]) * top * numPowers);\n am.d = tmp.d + top;\n tmp.top = am.top = 0;\n tmp.dmax = am.dmax = top;\n tmp.neg = am.neg = 0;\n tmp.flags = am.flags = BN_FLG_STATIC_DATA;\n#if 1\n if (m->d[top - 1] & (((BN_ULONG)1) << (BN_BITS2 - 1))) {\n tmp.d[0] = (0 - m->d[0]) & BN_MASK2;\n for (i = 1; i < top; i++)\n tmp.d[i] = (~m->d[i]) & BN_MASK2;\n tmp.top = top;\n } else\n#endif\n if (!bn_to_mont_fixed_top(&tmp, BN_value_one(), mont, ctx))\n goto err;\n if (a->neg || BN_ucmp(a, m) >= 0) {\n if (!BN_nnmod(&am, a, m, ctx))\n goto err;\n if (!bn_to_mont_fixed_top(&am, &am, mont, ctx))\n goto err;\n } else if (!bn_to_mont_fixed_top(&am, a, mont, ctx))\n goto err;\n#if defined(SPARC_T4_MONT)\n if (t4) {\n typedef int (*bn_pwr5_mont_f) (BN_ULONG *tp, const BN_ULONG *np,\n const BN_ULONG *n0, const void *table,\n int power, int bits);\n int bn_pwr5_mont_t4_8(BN_ULONG *tp, const BN_ULONG *np,\n const BN_ULONG *n0, const void *table,\n int power, int bits);\n int bn_pwr5_mont_t4_16(BN_ULONG *tp, const BN_ULONG *np,\n const BN_ULONG *n0, const void *table,\n int power, int bits);\n int bn_pwr5_mont_t4_24(BN_ULONG *tp, const BN_ULONG *np,\n const BN_ULONG *n0, const void *table,\n int power, int bits);\n int bn_pwr5_mont_t4_32(BN_ULONG *tp, const BN_ULONG *np,\n const BN_ULONG *n0, const void *table,\n int power, int bits);\n static const bn_pwr5_mont_f pwr5_funcs[4] = {\n bn_pwr5_mont_t4_8, bn_pwr5_mont_t4_16,\n bn_pwr5_mont_t4_24, bn_pwr5_mont_t4_32\n };\n bn_pwr5_mont_f pwr5_worker = pwr5_funcs[top / 16 - 1];\n typedef int (*bn_mul_mont_f) (BN_ULONG *rp, const BN_ULONG *ap,\n const void *bp, const BN_ULONG *np,\n const BN_ULONG *n0);\n int bn_mul_mont_t4_8(BN_ULONG *rp, const BN_ULONG *ap, const void *bp,\n const BN_ULONG *np, const BN_ULONG *n0);\n int bn_mul_mont_t4_16(BN_ULONG *rp, const BN_ULONG *ap,\n const void *bp, const BN_ULONG *np,\n const BN_ULONG *n0);\n int bn_mul_mont_t4_24(BN_ULONG *rp, const BN_ULONG *ap,\n const void *bp, const BN_ULONG *np,\n const BN_ULONG *n0);\n int bn_mul_mont_t4_32(BN_ULONG *rp, const BN_ULONG *ap,\n const void *bp, const BN_ULONG *np,\n const BN_ULONG *n0);\n static const bn_mul_mont_f mul_funcs[4] = {\n bn_mul_mont_t4_8, bn_mul_mont_t4_16,\n bn_mul_mont_t4_24, bn_mul_mont_t4_32\n };\n bn_mul_mont_f mul_worker = mul_funcs[top / 16 - 1];\n void bn_mul_mont_vis3(BN_ULONG *rp, const BN_ULONG *ap,\n const void *bp, const BN_ULONG *np,\n const BN_ULONG *n0, int num);\n void bn_mul_mont_t4(BN_ULONG *rp, const BN_ULONG *ap,\n const void *bp, const BN_ULONG *np,\n const BN_ULONG *n0, int num);\n void bn_mul_mont_gather5_t4(BN_ULONG *rp, const BN_ULONG *ap,\n const void *table, const BN_ULONG *np,\n const BN_ULONG *n0, int num, int power);\n void bn_flip_n_scatter5_t4(const BN_ULONG *inp, size_t num,\n void *table, size_t power);\n void bn_gather5_t4(BN_ULONG *out, size_t num,\n void *table, size_t power);\n void bn_flip_t4(BN_ULONG *dst, BN_ULONG *src, size_t num);\n BN_ULONG *np = mont->N.d, *n0 = mont->n0;\n int stride = 5 * (6 - (top / 16 - 1));\n for (i = am.top; i < top; i++)\n am.d[i] = 0;\n for (i = tmp.top; i < top; i++)\n tmp.d[i] = 0;\n bn_flip_n_scatter5_t4(tmp.d, top, powerbuf, 0);\n bn_flip_n_scatter5_t4(am.d, top, powerbuf, 1);\n if (!(*mul_worker) (tmp.d, am.d, am.d, np, n0) &&\n !(*mul_worker) (tmp.d, am.d, am.d, np, n0))\n bn_mul_mont_vis3(tmp.d, am.d, am.d, np, n0, top);\n bn_flip_n_scatter5_t4(tmp.d, top, powerbuf, 2);\n for (i = 3; i < 32; i++) {\n if (!(*mul_worker) (tmp.d, tmp.d, am.d, np, n0) &&\n !(*mul_worker) (tmp.d, tmp.d, am.d, np, n0))\n bn_mul_mont_vis3(tmp.d, tmp.d, am.d, np, n0, top);\n bn_flip_n_scatter5_t4(tmp.d, top, powerbuf, i);\n }\n np = alloca(top * sizeof(BN_ULONG));\n top /= 2;\n bn_flip_t4(np, mont->N.d, top);\n window0 = (bits - 1) % 5 + 1;\n wmask = (1 << window0) - 1;\n bits -= window0;\n wvalue = bn_get_bits(p, bits) & wmask;\n bn_gather5_t4(tmp.d, top, powerbuf, wvalue);\n while (bits > 0) {\n if (bits < stride)\n stride = bits;\n bits -= stride;\n wvalue = bn_get_bits(p, bits);\n if ((*pwr5_worker) (tmp.d, np, n0, powerbuf, wvalue, stride))\n continue;\n if ((*pwr5_worker) (tmp.d, np, n0, powerbuf, wvalue, stride))\n continue;\n bits += stride - 5;\n wvalue >>= stride - 5;\n wvalue &= 31;\n bn_mul_mont_t4(tmp.d, tmp.d, tmp.d, np, n0, top);\n bn_mul_mont_t4(tmp.d, tmp.d, tmp.d, np, n0, top);\n bn_mul_mont_t4(tmp.d, tmp.d, tmp.d, np, n0, top);\n bn_mul_mont_t4(tmp.d, tmp.d, tmp.d, np, n0, top);\n bn_mul_mont_t4(tmp.d, tmp.d, tmp.d, np, n0, top);\n bn_mul_mont_gather5_t4(tmp.d, tmp.d, powerbuf, np, n0, top,\n wvalue);\n }\n bn_flip_t4(tmp.d, tmp.d, top);\n top *= 2;\n tmp.top = top;\n bn_correct_top(&tmp);\n OPENSSL_cleanse(np, top * sizeof(BN_ULONG));\n } else\n#endif\n#if defined(OPENSSL_BN_ASM_MONT5)\n if (window == 5 && top > 1) {\n void bn_mul_mont_gather5(BN_ULONG *rp, const BN_ULONG *ap,\n const void *table, const BN_ULONG *np,\n const BN_ULONG *n0, int num, int power);\n void bn_scatter5(const BN_ULONG *inp, size_t num,\n void *table, size_t power);\n void bn_gather5(BN_ULONG *out, size_t num, void *table, size_t power);\n void bn_power5(BN_ULONG *rp, const BN_ULONG *ap,\n const void *table, const BN_ULONG *np,\n const BN_ULONG *n0, int num, int power);\n int bn_get_bits5(const BN_ULONG *ap, int off);\n int bn_from_montgomery(BN_ULONG *rp, const BN_ULONG *ap,\n const BN_ULONG *not_used, const BN_ULONG *np,\n const BN_ULONG *n0, int num);\n BN_ULONG *n0 = mont->n0, *np;\n for (i = am.top; i < top; i++)\n am.d[i] = 0;\n for (i = tmp.top; i < top; i++)\n tmp.d[i] = 0;\n for (np = am.d + top, i = 0; i < top; i++)\n np[i] = mont->N.d[i];\n bn_scatter5(tmp.d, top, powerbuf, 0);\n bn_scatter5(am.d, am.top, powerbuf, 1);\n bn_mul_mont(tmp.d, am.d, am.d, np, n0, top);\n bn_scatter5(tmp.d, top, powerbuf, 2);\n# if 0\n for (i = 3; i < 32; i++) {\n bn_mul_mont_gather5(tmp.d, am.d, powerbuf, np, n0, top, i - 1);\n bn_scatter5(tmp.d, top, powerbuf, i);\n }\n# else\n for (i = 4; i < 32; i *= 2) {\n bn_mul_mont(tmp.d, tmp.d, tmp.d, np, n0, top);\n bn_scatter5(tmp.d, top, powerbuf, i);\n }\n for (i = 3; i < 8; i += 2) {\n int j;\n bn_mul_mont_gather5(tmp.d, am.d, powerbuf, np, n0, top, i - 1);\n bn_scatter5(tmp.d, top, powerbuf, i);\n for (j = 2 * i; j < 32; j *= 2) {\n bn_mul_mont(tmp.d, tmp.d, tmp.d, np, n0, top);\n bn_scatter5(tmp.d, top, powerbuf, j);\n }\n }\n for (; i < 16; i += 2) {\n bn_mul_mont_gather5(tmp.d, am.d, powerbuf, np, n0, top, i - 1);\n bn_scatter5(tmp.d, top, powerbuf, i);\n bn_mul_mont(tmp.d, tmp.d, tmp.d, np, n0, top);\n bn_scatter5(tmp.d, top, powerbuf, 2 * i);\n }\n for (; i < 32; i += 2) {\n bn_mul_mont_gather5(tmp.d, am.d, powerbuf, np, n0, top, i - 1);\n bn_scatter5(tmp.d, top, powerbuf, i);\n }\n# endif\n window0 = (bits - 1) % 5 + 1;\n wmask = (1 << window0) - 1;\n bits -= window0;\n wvalue = bn_get_bits(p, bits) & wmask;\n bn_gather5(tmp.d, top, powerbuf, wvalue);\n if (top & 7) {\n while (bits > 0) {\n bn_mul_mont(tmp.d, tmp.d, tmp.d, np, n0, top);\n bn_mul_mont(tmp.d, tmp.d, tmp.d, np, n0, top);\n bn_mul_mont(tmp.d, tmp.d, tmp.d, np, n0, top);\n bn_mul_mont(tmp.d, tmp.d, tmp.d, np, n0, top);\n bn_mul_mont(tmp.d, tmp.d, tmp.d, np, n0, top);\n bn_mul_mont_gather5(tmp.d, tmp.d, powerbuf, np, n0, top,\n bn_get_bits5(p->d, bits -= 5));\n }\n } else {\n while (bits > 0) {\n bn_power5(tmp.d, tmp.d, powerbuf, np, n0, top,\n bn_get_bits5(p->d, bits -= 5));\n }\n }\n ret = bn_from_montgomery(tmp.d, tmp.d, NULL, np, n0, top);\n tmp.top = top;\n bn_correct_top(&tmp);\n if (ret) {\n if (!BN_copy(rr, &tmp))\n ret = 0;\n goto err;\n }\n } else\n#endif\n {\n if (!MOD_EXP_CTIME_COPY_TO_PREBUF(&tmp, top, powerbuf, 0, window))\n goto err;\n if (!MOD_EXP_CTIME_COPY_TO_PREBUF(&am, top, powerbuf, 1, window))\n goto err;\n if (window > 1) {\n if (!bn_mul_mont_fixed_top(&tmp, &am, &am, mont, ctx))\n goto err;\n if (!MOD_EXP_CTIME_COPY_TO_PREBUF(&tmp, top, powerbuf, 2,\n window))\n goto err;\n for (i = 3; i < numPowers; i++) {\n if (!bn_mul_mont_fixed_top(&tmp, &am, &tmp, mont, ctx))\n goto err;\n if (!MOD_EXP_CTIME_COPY_TO_PREBUF(&tmp, top, powerbuf, i,\n window))\n goto err;\n }\n }\n window0 = (bits - 1) % window + 1;\n wmask = (1 << window0) - 1;\n bits -= window0;\n wvalue = bn_get_bits(p, bits) & wmask;\n if (!MOD_EXP_CTIME_COPY_FROM_PREBUF(&tmp, top, powerbuf, wvalue,\n window))\n goto err;\n wmask = (1 << window) - 1;\n while (bits > 0) {\n for (i = 0; i < window; i++)\n if (!bn_mul_mont_fixed_top(&tmp, &tmp, &tmp, mont, ctx))\n goto err;\n bits -= window;\n wvalue = bn_get_bits(p, bits) & wmask;\n if (!MOD_EXP_CTIME_COPY_FROM_PREBUF(&am, top, powerbuf, wvalue,\n window))\n goto err;\n if (!bn_mul_mont_fixed_top(&tmp, &tmp, &am, mont, ctx))\n goto err;\n }\n }\n#if defined(SPARC_T4_MONT)\n if (OPENSSL_sparcv9cap_P[0] & (SPARCV9_VIS3 | SPARCV9_PREFER_FPU)) {\n am.d[0] = 1;\n for (i = 1; i < top; i++)\n am.d[i] = 0;\n if (!BN_mod_mul_montgomery(rr, &tmp, &am, mont, ctx))\n goto err;\n } else\n#endif\n if (!BN_from_montgomery(rr, &tmp, mont, ctx))\n goto err;\n ret = 1;\n err:\n if (in_mont == NULL)\n BN_MONT_CTX_free(mont);\n if (powerbuf != NULL) {\n OPENSSL_cleanse(powerbuf, powerbufLen);\n OPENSSL_free(powerbufFree);\n }\n BN_CTX_end(ctx);\n return ret;\n}', 'int BN_MONT_CTX_set(BN_MONT_CTX *mont, const BIGNUM *mod, BN_CTX *ctx)\n{\n int i, ret = 0;\n BIGNUM *Ri, *R;\n if (BN_is_zero(mod))\n return 0;\n BN_CTX_start(ctx);\n if ((Ri = BN_CTX_get(ctx)) == NULL)\n goto err;\n R = &(mont->RR);\n if (!BN_copy(&(mont->N), mod))\n goto err;\n if (BN_get_flags(mod, BN_FLG_CONSTTIME) != 0)\n BN_set_flags(&(mont->N), BN_FLG_CONSTTIME);\n mont->N.neg = 0;\n#ifdef MONT_WORD\n {\n BIGNUM tmod;\n BN_ULONG buf[2];\n bn_init(&tmod);\n tmod.d = buf;\n tmod.dmax = 2;\n tmod.neg = 0;\n if (BN_get_flags(mod, BN_FLG_CONSTTIME) != 0)\n BN_set_flags(&tmod, BN_FLG_CONSTTIME);\n mont->ri = (BN_num_bits(mod) + (BN_BITS2 - 1)) / BN_BITS2 * BN_BITS2;\n# if defined(OPENSSL_BN_ASM_MONT) && (BN_BITS2<=32)\n BN_zero(R);\n if (!(BN_set_bit(R, 2 * BN_BITS2)))\n goto err;\n tmod.top = 0;\n if ((buf[0] = mod->d[0]))\n tmod.top = 1;\n if ((buf[1] = mod->top > 1 ? mod->d[1] : 0))\n tmod.top = 2;\n if (BN_is_one(&tmod))\n BN_zero(Ri);\n else if ((BN_mod_inverse(Ri, R, &tmod, ctx)) == NULL)\n goto err;\n if (!BN_lshift(Ri, Ri, 2 * BN_BITS2))\n goto err;\n if (!BN_is_zero(Ri)) {\n if (!BN_sub_word(Ri, 1))\n goto err;\n } else {\n if (bn_expand(Ri, (int)sizeof(BN_ULONG) * 2) == NULL)\n goto err;\n Ri->neg = 0;\n Ri->d[0] = BN_MASK2;\n Ri->d[1] = BN_MASK2;\n Ri->top = 2;\n }\n if (!BN_div(Ri, NULL, Ri, &tmod, ctx))\n goto err;\n mont->n0[0] = (Ri->top > 0) ? Ri->d[0] : 0;\n mont->n0[1] = (Ri->top > 1) ? Ri->d[1] : 0;\n# else\n BN_zero(R);\n if (!(BN_set_bit(R, BN_BITS2)))\n goto err;\n buf[0] = mod->d[0];\n buf[1] = 0;\n tmod.top = buf[0] != 0 ? 1 : 0;\n if (BN_is_one(&tmod))\n BN_zero(Ri);\n else if ((BN_mod_inverse(Ri, R, &tmod, ctx)) == NULL)\n goto err;\n if (!BN_lshift(Ri, Ri, BN_BITS2))\n goto err;\n if (!BN_is_zero(Ri)) {\n if (!BN_sub_word(Ri, 1))\n goto err;\n } else {\n if (!BN_set_word(Ri, BN_MASK2))\n goto err;\n }\n if (!BN_div(Ri, NULL, Ri, &tmod, ctx))\n goto err;\n mont->n0[0] = (Ri->top > 0) ? Ri->d[0] : 0;\n mont->n0[1] = 0;\n# endif\n }\n#else\n {\n mont->ri = BN_num_bits(&mont->N);\n BN_zero(R);\n if (!BN_set_bit(R, mont->ri))\n goto err;\n if ((BN_mod_inverse(Ri, R, &mont->N, ctx)) == NULL)\n goto err;\n if (!BN_lshift(Ri, Ri, mont->ri))\n goto err;\n if (!BN_sub_word(Ri, 1))\n goto err;\n if (!BN_div(&(mont->Ni), NULL, Ri, &mont->N, ctx))\n goto err;\n }\n#endif\n BN_zero(&(mont->RR));\n if (!BN_set_bit(&(mont->RR), mont->ri * 2))\n goto err;\n if (!BN_mod(&(mont->RR), &(mont->RR), &(mont->N), ctx))\n goto err;\n for (i = mont->RR.top, ret = mont->N.top; i < ret; i++)\n mont->RR.d[i] = 0;\n mont->RR.top = ret;\n mont->RR.flags |= BN_FLG_FIXED_TOP;\n ret = 1;\n err:\n BN_CTX_end(ctx);\n return ret;\n}', 'BIGNUM *BN_mod_inverse(BIGNUM *in,\n const BIGNUM *a, const BIGNUM *n, BN_CTX *ctx)\n{\n BIGNUM *rv;\n int noinv;\n rv = int_bn_mod_inverse(in, a, n, ctx, &noinv);\n if (noinv)\n BNerr(BN_F_BN_MOD_INVERSE, BN_R_NO_INVERSE);\n return rv;\n}', 'BIGNUM *int_bn_mod_inverse(BIGNUM *in,\n const BIGNUM *a, const BIGNUM *n, BN_CTX *ctx,\n int *pnoinv)\n{\n BIGNUM *A, *B, *X, *Y, *M, *D, *T, *R = NULL;\n BIGNUM *ret = NULL;\n int sign;\n if (BN_abs_is_word(n, 1) || BN_is_zero(n)) {\n if (pnoinv != NULL)\n *pnoinv = 1;\n return NULL;\n }\n if (pnoinv != NULL)\n *pnoinv = 0;\n if ((BN_get_flags(a, BN_FLG_CONSTTIME) != 0)\n || (BN_get_flags(n, BN_FLG_CONSTTIME) != 0)) {\n return BN_mod_inverse_no_branch(in, a, n, ctx);\n }\n bn_check_top(a);\n bn_check_top(n);\n BN_CTX_start(ctx);\n A = BN_CTX_get(ctx);\n B = BN_CTX_get(ctx);\n X = BN_CTX_get(ctx);\n D = BN_CTX_get(ctx);\n M = BN_CTX_get(ctx);\n Y = BN_CTX_get(ctx);\n T = BN_CTX_get(ctx);\n if (T == NULL)\n goto err;\n if (in == NULL)\n R = BN_new();\n else\n R = in;\n if (R == NULL)\n goto err;\n BN_one(X);\n BN_zero(Y);\n if (BN_copy(B, a) == NULL)\n goto err;\n if (BN_copy(A, n) == NULL)\n goto err;\n A->neg = 0;\n if (B->neg || (BN_ucmp(B, A) >= 0)) {\n if (!BN_nnmod(B, B, A, ctx))\n goto err;\n }\n sign = -1;\n if (BN_is_odd(n) && (BN_num_bits(n) <= 2048)) {\n int shift;\n while (!BN_is_zero(B)) {\n shift = 0;\n while (!BN_is_bit_set(B, shift)) {\n shift++;\n if (BN_is_odd(X)) {\n if (!BN_uadd(X, X, n))\n goto err;\n }\n if (!BN_rshift1(X, X))\n goto err;\n }\n if (shift > 0) {\n if (!BN_rshift(B, B, shift))\n goto err;\n }\n shift = 0;\n while (!BN_is_bit_set(A, shift)) {\n shift++;\n if (BN_is_odd(Y)) {\n if (!BN_uadd(Y, Y, n))\n goto err;\n }\n if (!BN_rshift1(Y, Y))\n goto err;\n }\n if (shift > 0) {\n if (!BN_rshift(A, A, shift))\n goto err;\n }\n if (BN_ucmp(B, A) >= 0) {\n if (!BN_uadd(X, X, Y))\n goto err;\n if (!BN_usub(B, B, A))\n goto err;\n } else {\n if (!BN_uadd(Y, Y, X))\n goto err;\n if (!BN_usub(A, A, B))\n goto err;\n }\n }\n } else {\n while (!BN_is_zero(B)) {\n BIGNUM *tmp;\n if (BN_num_bits(A) == BN_num_bits(B)) {\n if (!BN_one(D))\n goto err;\n if (!BN_sub(M, A, B))\n goto err;\n } else if (BN_num_bits(A) == BN_num_bits(B) + 1) {\n if (!BN_lshift1(T, B))\n goto err;\n if (BN_ucmp(A, T) < 0) {\n if (!BN_one(D))\n goto err;\n if (!BN_sub(M, A, B))\n goto err;\n } else {\n if (!BN_sub(M, A, T))\n goto err;\n if (!BN_add(D, T, B))\n goto err;\n if (BN_ucmp(A, D) < 0) {\n if (!BN_set_word(D, 2))\n goto err;\n } else {\n if (!BN_set_word(D, 3))\n goto err;\n if (!BN_sub(M, M, B))\n goto err;\n }\n }\n } else {\n if (!BN_div(D, M, A, B, ctx))\n goto err;\n }\n tmp = A;\n A = B;\n B = M;\n if (BN_is_one(D)) {\n if (!BN_add(tmp, X, Y))\n goto err;\n } else {\n if (BN_is_word(D, 2)) {\n if (!BN_lshift1(tmp, X))\n goto err;\n } else if (BN_is_word(D, 4)) {\n if (!BN_lshift(tmp, X, 2))\n goto err;\n } else if (D->top == 1) {\n if (!BN_copy(tmp, X))\n goto err;\n if (!BN_mul_word(tmp, D->d[0]))\n goto err;\n } else {\n if (!BN_mul(tmp, D, X, ctx))\n goto err;\n }\n if (!BN_add(tmp, tmp, Y))\n goto err;\n }\n M = Y;\n Y = X;\n X = tmp;\n sign = -sign;\n }\n }\n if (sign < 0) {\n if (!BN_sub(Y, n, Y))\n goto err;\n }\n if (BN_is_one(A)) {\n if (!Y->neg && BN_ucmp(Y, n) < 0) {\n if (!BN_copy(R, Y))\n goto err;\n } else {\n if (!BN_nnmod(R, Y, n, ctx))\n goto err;\n }\n } else {\n if (pnoinv)\n *pnoinv = 1;\n goto err;\n }\n ret = R;\n err:\n if ((ret == NULL) && (in == NULL))\n BN_free(R);\n BN_CTX_end(ctx);\n bn_check_top(ret);\n return ret;\n}', 'static BIGNUM *BN_mod_inverse_no_branch(BIGNUM *in,\n const BIGNUM *a, const BIGNUM *n,\n BN_CTX *ctx)\n{\n BIGNUM *A, *B, *X, *Y, *M, *D, *T, *R = NULL;\n BIGNUM *ret = NULL;\n int sign;\n bn_check_top(a);\n bn_check_top(n);\n BN_CTX_start(ctx);\n A = BN_CTX_get(ctx);\n B = BN_CTX_get(ctx);\n X = BN_CTX_get(ctx);\n D = BN_CTX_get(ctx);\n M = BN_CTX_get(ctx);\n Y = BN_CTX_get(ctx);\n T = BN_CTX_get(ctx);\n if (T == NULL)\n goto err;\n if (in == NULL)\n R = BN_new();\n else\n R = in;\n if (R == NULL)\n goto err;\n BN_one(X);\n BN_zero(Y);\n if (BN_copy(B, a) == NULL)\n goto err;\n if (BN_copy(A, n) == NULL)\n goto err;\n A->neg = 0;\n if (B->neg || (BN_ucmp(B, A) >= 0)) {\n {\n BIGNUM local_B;\n bn_init(&local_B);\n BN_with_flags(&local_B, B, BN_FLG_CONSTTIME);\n if (!BN_nnmod(B, &local_B, A, ctx))\n goto err;\n }\n }\n sign = -1;\n while (!BN_is_zero(B)) {\n BIGNUM *tmp;\n {\n BIGNUM local_A;\n bn_init(&local_A);\n BN_with_flags(&local_A, A, BN_FLG_CONSTTIME);\n if (!BN_div(D, M, &local_A, B, ctx))\n goto err;\n }\n tmp = A;\n A = B;\n B = M;\n if (!BN_mul(tmp, D, X, ctx))\n goto err;\n if (!BN_add(tmp, tmp, Y))\n goto err;\n M = Y;\n Y = X;\n X = tmp;\n sign = -sign;\n }\n if (sign < 0) {\n if (!BN_sub(Y, n, Y))\n goto err;\n }\n if (BN_is_one(A)) {\n if (!Y->neg && BN_ucmp(Y, n) < 0) {\n if (!BN_copy(R, Y))\n goto err;\n } else {\n if (!BN_nnmod(R, Y, n, ctx))\n goto err;\n }\n } else {\n BNerr(BN_F_BN_MOD_INVERSE_NO_BRANCH, BN_R_NO_INVERSE);\n goto err;\n }\n ret = R;\n err:\n if ((ret == NULL) && (in == NULL))\n BN_free(R);\n BN_CTX_end(ctx);\n bn_check_top(ret);\n return ret;\n}', 'int BN_nnmod(BIGNUM *r, const BIGNUM *m, const BIGNUM *d, BN_CTX *ctx)\n{\n if (!(BN_mod(r, m, d, ctx)))\n return 0;\n if (!r->neg)\n return 1;\n return (d->neg ? BN_sub : BN_add) (r, r, d);\n}', 'void BN_CTX_end(BN_CTX *ctx)\n{\n CTXDBG_ENTRY("BN_CTX_end", ctx);\n if (ctx->err_stack)\n ctx->err_stack--;\n else {\n unsigned int fp = BN_STACK_pop(&ctx->stack);\n if (fp < ctx->used)\n BN_POOL_release(&ctx->pool, ctx->used - fp);\n ctx->used = fp;\n ctx->too_many = 0;\n }\n CTXDBG_EXIT(ctx);\n}', 'static unsigned int BN_STACK_pop(BN_STACK *st)\n{\n return st->indexes[--(st->depth)];\n}'] |
25,951 | 0 | https://github.com/openssl/openssl/blob/f006217bb628d05a2d5b866ff252bd94e3477e1f/crypto/evp/pmeth_gn.c/#L112 | int EVP_PKEY_paramgen(EVP_PKEY_CTX *ctx, EVP_PKEY **ppkey)
{
int ret;
if (!ctx || !ctx->pmeth || !ctx->pmeth->paramgen) {
EVPerr(EVP_F_EVP_PKEY_PARAMGEN,
EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
return -2;
}
if (ctx->operation != EVP_PKEY_OP_PARAMGEN) {
EVPerr(EVP_F_EVP_PKEY_PARAMGEN, EVP_R_OPERATON_NOT_INITIALIZED);
return -1;
}
if (ppkey == NULL)
return -1;
if (*ppkey == NULL)
*ppkey = EVP_PKEY_new();
if (*ppkey == NULL) {
EVPerr(EVP_F_EVP_PKEY_PARAMGEN, ERR_R_MALLOC_FAILURE);
return -1;
}
ret = ctx->pmeth->paramgen(ctx, *ppkey);
if (ret <= 0) {
EVP_PKEY_free(*ppkey);
*ppkey = NULL;
}
return ret;
} | ['int EVP_PKEY_paramgen(EVP_PKEY_CTX *ctx, EVP_PKEY **ppkey)\n{\n int ret;\n if (!ctx || !ctx->pmeth || !ctx->pmeth->paramgen) {\n EVPerr(EVP_F_EVP_PKEY_PARAMGEN,\n EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);\n return -2;\n }\n if (ctx->operation != EVP_PKEY_OP_PARAMGEN) {\n EVPerr(EVP_F_EVP_PKEY_PARAMGEN, EVP_R_OPERATON_NOT_INITIALIZED);\n return -1;\n }\n if (ppkey == NULL)\n return -1;\n if (*ppkey == NULL)\n *ppkey = EVP_PKEY_new();\n if (*ppkey == NULL) {\n EVPerr(EVP_F_EVP_PKEY_PARAMGEN, ERR_R_MALLOC_FAILURE);\n return -1;\n }\n ret = ctx->pmeth->paramgen(ctx, *ppkey);\n if (ret <= 0) {\n EVP_PKEY_free(*ppkey);\n *ppkey = NULL;\n }\n return ret;\n}', 'EVP_PKEY *EVP_PKEY_new(void)\n{\n EVP_PKEY *ret;\n ret = OPENSSL_malloc(sizeof(*ret));\n if (ret == NULL) {\n EVPerr(EVP_F_EVP_PKEY_NEW, ERR_R_MALLOC_FAILURE);\n return (NULL);\n }\n ret->type = EVP_PKEY_NONE;\n ret->save_type = EVP_PKEY_NONE;\n ret->references = 1;\n ret->ameth = NULL;\n ret->engine = NULL;\n ret->pkey.ptr = NULL;\n ret->attributes = NULL;\n ret->save_parameters = 1;\n return (ret);\n}', 'void *CRYPTO_malloc(size_t num, const char *file, int line)\n{\n void *ret = NULL;\n if (num <= 0)\n return NULL;\n allow_customize = 0;\n#ifndef OPENSSL_NO_CRYPTO_MDEBUG\n if (call_malloc_debug) {\n CRYPTO_mem_debug_malloc(NULL, num, 0, file, line);\n ret = malloc(num);\n CRYPTO_mem_debug_malloc(ret, num, 1, file, line);\n } else {\n ret = malloc(num);\n }\n#else\n (void)file;\n (void)line;\n ret = malloc(num);\n#endif\n#ifndef OPENSSL_CPUID_OBJ\n if (ret && (num > 2048)) {\n extern unsigned char cleanse_ctr;\n ((unsigned char *)ret)[0] = cleanse_ctr;\n }\n#endif\n return ret;\n}', 'void EVP_PKEY_free(EVP_PKEY *x)\n{\n int i;\n if (x == NULL)\n return;\n i = CRYPTO_add(&x->references, -1, CRYPTO_LOCK_EVP_PKEY);\n#ifdef REF_PRINT\n REF_PRINT("EVP_PKEY", x);\n#endif\n if (i > 0)\n return;\n#ifdef REF_CHECK\n if (i < 0) {\n fprintf(stderr, "EVP_PKEY_free, bad reference count\\n");\n abort();\n }\n#endif\n EVP_PKEY_free_it(x);\n sk_X509_ATTRIBUTE_pop_free(x->attributes, X509_ATTRIBUTE_free);\n OPENSSL_free(x);\n}', 'int CRYPTO_add_lock(int *pointer, int amount, int type, const char *file,\n int line)\n{\n int ret = 0;\n if (add_lock_callback != NULL) {\n#ifdef LOCK_DEBUG\n int before = *pointer;\n#endif\n ret = add_lock_callback(pointer, amount, type, file, line);\n#ifdef LOCK_DEBUG\n {\n CRYPTO_THREADID id;\n CRYPTO_THREADID_current(&id);\n fprintf(stderr, "ladd:%08lx:%2d+%2d->%2d %-18s %s:%d\\n",\n CRYPTO_THREADID_hash(&id), before, amount, ret,\n CRYPTO_get_lock_name(type), file, line);\n }\n#endif\n } else {\n CRYPTO_lock(CRYPTO_LOCK | CRYPTO_WRITE, type, file, line);\n ret = *pointer + amount;\n#ifdef LOCK_DEBUG\n {\n CRYPTO_THREADID id;\n CRYPTO_THREADID_current(&id);\n fprintf(stderr, "ladd:%08lx:%2d+%2d->%2d %-18s %s:%d\\n",\n CRYPTO_THREADID_hash(&id),\n *pointer, amount, ret,\n CRYPTO_get_lock_name(type), file, line);\n }\n#endif\n *pointer = ret;\n CRYPTO_lock(CRYPTO_UNLOCK | CRYPTO_WRITE, type, file, line);\n }\n return (ret);\n}', 'void CRYPTO_lock(int mode, int type, const char *file, int line)\n{\n#ifdef LOCK_DEBUG\n {\n CRYPTO_THREADID id;\n char *rw_text, *operation_text;\n if (mode & CRYPTO_LOCK)\n operation_text = "lock ";\n else if (mode & CRYPTO_UNLOCK)\n operation_text = "unlock";\n else\n operation_text = "ERROR ";\n if (mode & CRYPTO_READ)\n rw_text = "r";\n else if (mode & CRYPTO_WRITE)\n rw_text = "w";\n else\n rw_text = "ERROR";\n CRYPTO_THREADID_current(&id);\n fprintf(stderr, "lock:%08lx:(%s)%s %-18s %s:%d\\n",\n CRYPTO_THREADID_hash(&id), rw_text, operation_text,\n CRYPTO_get_lock_name(type), file, line);\n }\n#endif\n if (type < 0) {\n if (dynlock_lock_callback != NULL) {\n struct CRYPTO_dynlock_value *pointer\n = CRYPTO_get_dynlock_value(type);\n OPENSSL_assert(pointer != NULL);\n dynlock_lock_callback(mode, pointer, file, line);\n CRYPTO_destroy_dynlockid(type);\n }\n } else if (locking_callback != NULL)\n locking_callback(mode, type, file, line);\n}'] |
25,952 | 1 | https://github.com/openssl/openssl/blob/3da2e9c4ee45989a426ff513dc6c6250d1e460de/crypto/bn/bn_shift.c/#L112 | int BN_lshift(BIGNUM *r, const BIGNUM *a, int n)
{
int i, nw, lb, rb;
BN_ULONG *t, *f;
BN_ULONG l;
bn_check_top(r);
bn_check_top(a);
if (n < 0) {
BNerr(BN_F_BN_LSHIFT, BN_R_INVALID_SHIFT);
return 0;
}
nw = n / BN_BITS2;
if (bn_wexpand(r, a->top + nw + 1) == NULL)
return 0;
r->neg = a->neg;
lb = n % BN_BITS2;
rb = BN_BITS2 - lb;
f = a->d;
t = r->d;
t[a->top + nw] = 0;
if (lb == 0)
for (i = a->top - 1; i >= 0; i--)
t[nw + i] = f[i];
else
for (i = a->top - 1; i >= 0; i--) {
l = f[i];
t[nw + i + 1] |= (l >> rb) & BN_MASK2;
t[nw + i] = (l << lb) & BN_MASK2;
}
memset(t, 0, sizeof(*t) * nw);
r->top = a->top + nw + 1;
bn_correct_top(r);
bn_check_top(r);
return 1;
} | ['static int file_lshift1(STANZA *s)\n{\n BIGNUM *a = NULL, *lshift1 = NULL, *zero = NULL, *ret = NULL;\n BIGNUM *two = NULL, *remainder = NULL;\n int st = 0;\n if (!TEST_ptr(a = getBN(s, "A"))\n || !TEST_ptr(lshift1 = getBN(s, "LShift1"))\n || !TEST_ptr(zero = BN_new())\n || !TEST_ptr(ret = BN_new())\n || !TEST_ptr(two = BN_new())\n || !TEST_ptr(remainder = BN_new()))\n goto err;\n BN_zero(zero);\n if (!TEST_true(BN_set_word(two, 2))\n || !TEST_true(BN_add(ret, a, a))\n || !equalBN("A + A", lshift1, ret)\n || !TEST_true(BN_mul(ret, a, two, ctx))\n || !equalBN("A * 2", lshift1, ret)\n || !TEST_true(BN_div(ret, remainder, lshift1, two, ctx))\n || !equalBN("LShift1 / 2", a, ret)\n || !equalBN("LShift1 % 2", zero, remainder)\n || !TEST_true(BN_lshift1(ret, a))\n || !equalBN("A << 1", lshift1, ret)\n || !TEST_true(BN_rshift1(ret, lshift1))\n || !equalBN("LShift >> 1", a, ret)\n || !TEST_true(BN_rshift1(ret, lshift1))\n || !equalBN("LShift >> 1", a, ret))\n goto err;\n if (!TEST_true(BN_set_bit(lshift1, 0))\n || !TEST_true(BN_div(ret, NULL , lshift1, two, ctx))\n || !equalBN("(LShift1 | 1) / 2", a, ret)\n || !TEST_true(BN_rshift1(ret, lshift1))\n || !equalBN("(LShift | 1) >> 1", a, ret))\n goto err;\n st = 1;\nerr:\n BN_free(a);\n BN_free(lshift1);\n BN_free(zero);\n BN_free(ret);\n BN_free(two);\n BN_free(remainder);\n return st;\n}', 'int BN_add(BIGNUM *r, const BIGNUM *a, const BIGNUM *b)\n{\n int ret, r_neg, cmp_res;\n bn_check_top(a);\n bn_check_top(b);\n if (a->neg == b->neg) {\n r_neg = a->neg;\n ret = BN_uadd(r, a, b);\n } else {\n cmp_res = BN_ucmp(a, b);\n if (cmp_res > 0) {\n r_neg = a->neg;\n ret = BN_usub(r, a, b);\n } else if (cmp_res < 0) {\n r_neg = b->neg;\n ret = BN_usub(r, b, a);\n } else {\n r_neg = 0;\n BN_zero(r);\n ret = 1;\n }\n }\n r->neg = r_neg;\n bn_check_top(r);\n return ret;\n}', 'int BN_usub(BIGNUM *r, const BIGNUM *a, const BIGNUM *b)\n{\n int max, min, dif;\n BN_ULONG t1, t2, borrow, *rp;\n const BN_ULONG *ap, *bp;\n bn_check_top(a);\n bn_check_top(b);\n max = a->top;\n min = b->top;\n dif = max - min;\n if (dif < 0) {\n BNerr(BN_F_BN_USUB, BN_R_ARG2_LT_ARG3);\n return 0;\n }\n if (bn_wexpand(r, max) == NULL)\n return 0;\n ap = a->d;\n bp = b->d;\n rp = r->d;\n borrow = bn_sub_words(rp, ap, bp, min);\n ap += min;\n rp += min;\n while (dif) {\n dif--;\n t1 = *(ap++);\n t2 = (t1 - borrow) & BN_MASK2;\n *(rp++) = t2;\n borrow &= (t1 == 0);\n }\n while (max && *--rp == 0)\n max--;\n r->top = max;\n r->neg = 0;\n bn_pollute(r);\n return 1;\n}', 'int BN_div(BIGNUM *dv, BIGNUM *rm, const BIGNUM *num, const BIGNUM *divisor,\n BN_CTX *ctx)\n{\n int norm_shift, i, j, loop;\n BIGNUM *tmp, wnum, *snum, *sdiv, *res;\n BN_ULONG *resp, *wnump;\n BN_ULONG d0, d1;\n int num_n, div_n;\n int no_branch = 0;\n if ((num->top > 0 && num->d[num->top - 1] == 0) ||\n (divisor->top > 0 && divisor->d[divisor->top - 1] == 0)) {\n BNerr(BN_F_BN_DIV, BN_R_NOT_INITIALIZED);\n return 0;\n }\n bn_check_top(num);\n bn_check_top(divisor);\n if ((BN_get_flags(num, BN_FLG_CONSTTIME) != 0)\n || (BN_get_flags(divisor, BN_FLG_CONSTTIME) != 0)) {\n no_branch = 1;\n }\n bn_check_top(dv);\n bn_check_top(rm);\n if (BN_is_zero(divisor)) {\n BNerr(BN_F_BN_DIV, BN_R_DIV_BY_ZERO);\n return 0;\n }\n if (!no_branch && BN_ucmp(num, divisor) < 0) {\n if (rm != NULL) {\n if (BN_copy(rm, num) == NULL)\n return 0;\n }\n if (dv != NULL)\n BN_zero(dv);\n return 1;\n }\n BN_CTX_start(ctx);\n res = (dv == NULL) ? BN_CTX_get(ctx) : dv;\n tmp = BN_CTX_get(ctx);\n snum = BN_CTX_get(ctx);\n sdiv = BN_CTX_get(ctx);\n if (sdiv == NULL)\n goto err;\n norm_shift = BN_BITS2 - ((BN_num_bits(divisor)) % BN_BITS2);\n if (!(BN_lshift(sdiv, divisor, norm_shift)))\n goto err;\n sdiv->neg = 0;\n norm_shift += BN_BITS2;\n if (!(BN_lshift(snum, num, norm_shift)))\n goto err;\n snum->neg = 0;\n if (no_branch) {\n if (snum->top <= sdiv->top + 1) {\n if (bn_wexpand(snum, sdiv->top + 2) == NULL)\n goto err;\n for (i = snum->top; i < sdiv->top + 2; i++)\n snum->d[i] = 0;\n snum->top = sdiv->top + 2;\n } else {\n if (bn_wexpand(snum, snum->top + 1) == NULL)\n goto err;\n snum->d[snum->top] = 0;\n snum->top++;\n }\n }\n div_n = sdiv->top;\n num_n = snum->top;\n loop = num_n - div_n;\n wnum.neg = 0;\n wnum.d = &(snum->d[loop]);\n wnum.top = div_n;\n wnum.flags = BN_FLG_STATIC_DATA;\n wnum.dmax = snum->dmax - loop;\n d0 = sdiv->d[div_n - 1];\n d1 = (div_n == 1) ? 0 : sdiv->d[div_n - 2];\n wnump = &(snum->d[num_n - 1]);\n if (!bn_wexpand(res, (loop + 1)))\n goto err;\n res->neg = (num->neg ^ divisor->neg);\n res->top = loop - no_branch;\n resp = &(res->d[loop - 1]);\n if (!bn_wexpand(tmp, (div_n + 1)))\n goto err;\n if (!no_branch) {\n if (BN_ucmp(&wnum, sdiv) >= 0) {\n bn_clear_top2max(&wnum);\n bn_sub_words(wnum.d, wnum.d, sdiv->d, div_n);\n *resp = 1;\n } else\n res->top--;\n }\n resp++;\n if (res->top == 0)\n res->neg = 0;\n else\n resp--;\n for (i = 0; i < loop - 1; i++, wnump--) {\n BN_ULONG q, l0;\n# if defined(BN_DIV3W)\n q = bn_div_3_words(wnump, d1, d0);\n# else\n BN_ULONG n0, n1, rem = 0;\n n0 = wnump[0];\n n1 = wnump[-1];\n if (n0 == d0)\n q = BN_MASK2;\n else {\n# ifdef BN_LLONG\n BN_ULLONG t2;\n# if defined(BN_LLONG) && defined(BN_DIV2W) && !defined(bn_div_words)\n q = (BN_ULONG)(((((BN_ULLONG) n0) << BN_BITS2) | n1) / d0);\n# else\n q = bn_div_words(n0, n1, d0);\n# endif\n# ifndef REMAINDER_IS_ALREADY_CALCULATED\n rem = (n1 - q * d0) & BN_MASK2;\n# endif\n t2 = (BN_ULLONG) d1 *q;\n for (;;) {\n if (t2 <= ((((BN_ULLONG) rem) << BN_BITS2) | wnump[-2]))\n break;\n q--;\n rem += d0;\n if (rem < d0)\n break;\n t2 -= d1;\n }\n# else\n BN_ULONG t2l, t2h;\n q = bn_div_words(n0, n1, d0);\n# ifndef REMAINDER_IS_ALREADY_CALCULATED\n rem = (n1 - q * d0) & BN_MASK2;\n# endif\n# if defined(BN_UMULT_LOHI)\n BN_UMULT_LOHI(t2l, t2h, d1, q);\n# elif defined(BN_UMULT_HIGH)\n t2l = d1 * q;\n t2h = BN_UMULT_HIGH(d1, q);\n# else\n {\n BN_ULONG ql, qh;\n t2l = LBITS(d1);\n t2h = HBITS(d1);\n ql = LBITS(q);\n qh = HBITS(q);\n mul64(t2l, t2h, ql, qh);\n }\n# endif\n for (;;) {\n if ((t2h < rem) || ((t2h == rem) && (t2l <= wnump[-2])))\n break;\n q--;\n rem += d0;\n if (rem < d0)\n break;\n if (t2l < d1)\n t2h--;\n t2l -= d1;\n }\n# endif\n }\n# endif\n l0 = bn_mul_words(tmp->d, sdiv->d, div_n, q);\n tmp->d[div_n] = l0;\n wnum.d--;\n l0 = bn_sub_words(wnum.d, wnum.d, tmp->d, div_n + 1);\n q -= l0;\n for (l0 = 0 - l0, j = 0; j < div_n; j++)\n tmp->d[j] = sdiv->d[j] & l0;\n l0 = bn_add_words(wnum.d, wnum.d, tmp->d, div_n);\n (*wnump) += l0;\n resp--;\n *resp = q;\n }\n bn_correct_top(snum);\n if (rm != NULL) {\n int neg = num->neg;\n BN_rshift(rm, snum, norm_shift);\n if (!BN_is_zero(rm))\n rm->neg = neg;\n bn_check_top(rm);\n }\n if (no_branch)\n bn_correct_top(res);\n BN_CTX_end(ctx);\n return 1;\n err:\n bn_check_top(rm);\n BN_CTX_end(ctx);\n return 0;\n}', 'int BN_lshift(BIGNUM *r, const BIGNUM *a, int n)\n{\n int i, nw, lb, rb;\n BN_ULONG *t, *f;\n BN_ULONG l;\n bn_check_top(r);\n bn_check_top(a);\n if (n < 0) {\n BNerr(BN_F_BN_LSHIFT, BN_R_INVALID_SHIFT);\n return 0;\n }\n nw = n / BN_BITS2;\n if (bn_wexpand(r, a->top + nw + 1) == NULL)\n return 0;\n r->neg = a->neg;\n lb = n % BN_BITS2;\n rb = BN_BITS2 - lb;\n f = a->d;\n t = r->d;\n t[a->top + nw] = 0;\n if (lb == 0)\n for (i = a->top - 1; i >= 0; i--)\n t[nw + i] = f[i];\n else\n for (i = a->top - 1; i >= 0; i--) {\n l = f[i];\n t[nw + i + 1] |= (l >> rb) & BN_MASK2;\n t[nw + i] = (l << lb) & BN_MASK2;\n }\n memset(t, 0, sizeof(*t) * nw);\n r->top = a->top + nw + 1;\n bn_correct_top(r);\n bn_check_top(r);\n return 1;\n}', 'BIGNUM *bn_wexpand(BIGNUM *a, int words)\n{\n return (words <= a->dmax) ? a : bn_expand2(a, words);\n}'] |
25,953 | 0 | https://github.com/openssl/openssl/blob/6fc1748ec65c94c195d02b59556434e36a5f7651/crypto/lhash/lhash.c/#L123 | void *OPENSSL_LH_delete(OPENSSL_LHASH *lh, const void *data)
{
unsigned long hash;
OPENSSL_LH_NODE *nn, **rn;
void *ret;
lh->error = 0;
rn = getrn(lh, data, &hash);
if (*rn == NULL) {
lh->num_no_delete++;
return (NULL);
} else {
nn = *rn;
*rn = nn->next;
ret = nn->data;
OPENSSL_free(nn);
lh->num_delete++;
}
lh->num_items--;
if ((lh->num_nodes > MIN_NODES) &&
(lh->down_load >= (lh->num_items * LH_LOAD_MULT / lh->num_nodes)))
contract(lh);
return (ret);
} | ['int create_ssl_objects(SSL_CTX *serverctx, SSL_CTX *clientctx, SSL **sssl,\n SSL **cssl, BIO *s_to_c_fbio, BIO *c_to_s_fbio)\n{\n SSL *serverssl, *clientssl;\n BIO *s_to_c_bio = NULL, *c_to_s_bio = NULL;\n if (*sssl == NULL)\n serverssl = SSL_new(serverctx);\n else\n serverssl = *sssl;\n if (*cssl == NULL)\n clientssl = SSL_new(clientctx);\n else\n clientssl = *cssl;\n if (serverssl == NULL || clientssl == NULL) {\n printf("Failed to create SSL object\\n");\n goto error;\n }\n if (SSL_is_dtls(clientssl)) {\n s_to_c_bio = BIO_new(bio_s_mempacket_test());\n c_to_s_bio = BIO_new(bio_s_mempacket_test());;\n } else {\n s_to_c_bio = BIO_new(BIO_s_mem());\n c_to_s_bio = BIO_new(BIO_s_mem());\n }\n if (s_to_c_bio == NULL || c_to_s_bio == NULL) {\n printf("Failed to create mem BIOs\\n");\n goto error;\n }\n if (s_to_c_fbio != NULL)\n s_to_c_bio = BIO_push(s_to_c_fbio, s_to_c_bio);\n if (c_to_s_fbio != NULL)\n c_to_s_bio = BIO_push(c_to_s_fbio, c_to_s_bio);\n if (s_to_c_bio == NULL || c_to_s_bio == NULL) {\n printf("Failed to create chained BIOs\\n");\n goto error;\n }\n BIO_set_mem_eof_return(s_to_c_bio, -1);\n BIO_set_mem_eof_return(c_to_s_bio, -1);\n BIO_up_ref(s_to_c_bio);\n BIO_up_ref(c_to_s_bio);\n SSL_set_bio(serverssl, c_to_s_bio, s_to_c_bio);\n SSL_set_bio(clientssl, s_to_c_bio, c_to_s_bio);\n s_to_c_bio = c_to_s_bio = NULL;\n s_to_c_fbio = c_to_s_fbio = NULL;\n *sssl = serverssl;\n *cssl = clientssl;\n return 1;\n error:\n SSL_free(serverssl);\n SSL_free(clientssl);\n BIO_free(s_to_c_bio);\n BIO_free(c_to_s_bio);\n BIO_free(s_to_c_fbio);\n BIO_free(c_to_s_fbio);\n return 0;\n}', 'SSL *SSL_new(SSL_CTX *ctx)\n{\n SSL *s;\n if (ctx == NULL) {\n SSLerr(SSL_F_SSL_NEW, SSL_R_NULL_SSL_CTX);\n return (NULL);\n }\n if (ctx->method == NULL) {\n SSLerr(SSL_F_SSL_NEW, SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION);\n return (NULL);\n }\n s = OPENSSL_zalloc(sizeof(*s));\n if (s == NULL)\n goto err;\n s->lock = CRYPTO_THREAD_lock_new();\n if (s->lock == NULL) {\n SSLerr(SSL_F_SSL_NEW, ERR_R_MALLOC_FAILURE);\n OPENSSL_free(s);\n return NULL;\n }\n RECORD_LAYER_init(&s->rlayer, s);\n s->options = ctx->options;\n s->dane.flags = ctx->dane.flags;\n s->min_proto_version = ctx->min_proto_version;\n s->max_proto_version = ctx->max_proto_version;\n s->mode = ctx->mode;\n s->max_cert_list = ctx->max_cert_list;\n s->references = 1;\n s->cert = ssl_cert_dup(ctx->cert);\n if (s->cert == NULL)\n goto err;\n RECORD_LAYER_set_read_ahead(&s->rlayer, ctx->read_ahead);\n s->msg_callback = ctx->msg_callback;\n s->msg_callback_arg = ctx->msg_callback_arg;\n s->verify_mode = ctx->verify_mode;\n s->not_resumable_session_cb = ctx->not_resumable_session_cb;\n s->sid_ctx_length = ctx->sid_ctx_length;\n OPENSSL_assert(s->sid_ctx_length <= sizeof s->sid_ctx);\n memcpy(&s->sid_ctx, &ctx->sid_ctx, sizeof(s->sid_ctx));\n s->verify_callback = ctx->default_verify_callback;\n s->generate_session_id = ctx->generate_session_id;\n s->param = X509_VERIFY_PARAM_new();\n if (s->param == NULL)\n goto err;\n X509_VERIFY_PARAM_inherit(s->param, ctx->param);\n s->quiet_shutdown = ctx->quiet_shutdown;\n s->max_send_fragment = ctx->max_send_fragment;\n s->split_send_fragment = ctx->split_send_fragment;\n s->max_pipelines = ctx->max_pipelines;\n if (s->max_pipelines > 1)\n RECORD_LAYER_set_read_ahead(&s->rlayer, 1);\n if (ctx->default_read_buf_len > 0)\n SSL_set_default_read_buffer_len(s, ctx->default_read_buf_len);\n SSL_CTX_up_ref(ctx);\n s->ctx = ctx;\n s->tlsext_debug_cb = 0;\n s->tlsext_debug_arg = NULL;\n s->tlsext_ticket_expected = 0;\n s->tlsext_status_type = ctx->tlsext_status_type;\n s->tlsext_status_expected = 0;\n s->tlsext_ocsp_ids = NULL;\n s->tlsext_ocsp_exts = NULL;\n s->tlsext_ocsp_resp = NULL;\n s->tlsext_ocsp_resplen = -1;\n SSL_CTX_up_ref(ctx);\n s->initial_ctx = ctx;\n#ifndef OPENSSL_NO_EC\n if (ctx->tlsext_ecpointformatlist) {\n s->tlsext_ecpointformatlist =\n OPENSSL_memdup(ctx->tlsext_ecpointformatlist,\n ctx->tlsext_ecpointformatlist_length);\n if (!s->tlsext_ecpointformatlist)\n goto err;\n s->tlsext_ecpointformatlist_length =\n ctx->tlsext_ecpointformatlist_length;\n }\n if (ctx->tlsext_ellipticcurvelist) {\n s->tlsext_ellipticcurvelist =\n OPENSSL_memdup(ctx->tlsext_ellipticcurvelist,\n ctx->tlsext_ellipticcurvelist_length);\n if (!s->tlsext_ellipticcurvelist)\n goto err;\n s->tlsext_ellipticcurvelist_length =\n ctx->tlsext_ellipticcurvelist_length;\n }\n#endif\n#ifndef OPENSSL_NO_NEXTPROTONEG\n s->next_proto_negotiated = NULL;\n#endif\n if (s->ctx->alpn_client_proto_list) {\n s->alpn_client_proto_list =\n OPENSSL_malloc(s->ctx->alpn_client_proto_list_len);\n if (s->alpn_client_proto_list == NULL)\n goto err;\n memcpy(s->alpn_client_proto_list, s->ctx->alpn_client_proto_list,\n s->ctx->alpn_client_proto_list_len);\n s->alpn_client_proto_list_len = s->ctx->alpn_client_proto_list_len;\n }\n s->verified_chain = NULL;\n s->verify_result = X509_V_OK;\n s->default_passwd_callback = ctx->default_passwd_callback;\n s->default_passwd_callback_userdata = ctx->default_passwd_callback_userdata;\n s->method = ctx->method;\n if (!s->method->ssl_new(s))\n goto err;\n s->server = (ctx->method->ssl_accept == ssl_undefined_function) ? 0 : 1;\n if (!SSL_clear(s))\n goto err;\n if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data))\n goto err;\n#ifndef OPENSSL_NO_PSK\n s->psk_client_callback = ctx->psk_client_callback;\n s->psk_server_callback = ctx->psk_server_callback;\n#endif\n s->job = NULL;\n#ifndef OPENSSL_NO_CT\n if (!SSL_set_ct_validation_callback(s, ctx->ct_validation_callback,\n ctx->ct_validation_callback_arg))\n goto err;\n#endif\n return s;\n err:\n SSL_free(s);\n SSLerr(SSL_F_SSL_NEW, ERR_R_MALLOC_FAILURE);\n return NULL;\n}', 'void SSL_free(SSL *s)\n{\n int i;\n if (s == NULL)\n return;\n CRYPTO_atomic_add(&s->references, -1, &i, s->lock);\n REF_PRINT_COUNT("SSL", s);\n if (i > 0)\n return;\n REF_ASSERT_ISNT(i < 0);\n X509_VERIFY_PARAM_free(s->param);\n dane_final(&s->dane);\n CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);\n ssl_free_wbio_buffer(s);\n BIO_free_all(s->wbio);\n BIO_free_all(s->rbio);\n BUF_MEM_free(s->init_buf);\n sk_SSL_CIPHER_free(s->cipher_list);\n sk_SSL_CIPHER_free(s->cipher_list_by_id);\n if (s->session != NULL) {\n ssl_clear_bad_session(s);\n SSL_SESSION_free(s->session);\n }\n clear_ciphers(s);\n ssl_cert_free(s->cert);\n OPENSSL_free(s->tlsext_hostname);\n SSL_CTX_free(s->initial_ctx);\n#ifndef OPENSSL_NO_EC\n OPENSSL_free(s->tlsext_ecpointformatlist);\n OPENSSL_free(s->tlsext_ellipticcurvelist);\n#endif\n sk_X509_EXTENSION_pop_free(s->tlsext_ocsp_exts, X509_EXTENSION_free);\n#ifndef OPENSSL_NO_OCSP\n sk_OCSP_RESPID_pop_free(s->tlsext_ocsp_ids, OCSP_RESPID_free);\n#endif\n#ifndef OPENSSL_NO_CT\n SCT_LIST_free(s->scts);\n OPENSSL_free(s->tlsext_scts);\n#endif\n OPENSSL_free(s->tlsext_ocsp_resp);\n OPENSSL_free(s->alpn_client_proto_list);\n sk_X509_NAME_pop_free(s->client_CA, X509_NAME_free);\n sk_X509_pop_free(s->verified_chain, X509_free);\n if (s->method != NULL)\n s->method->ssl_free(s);\n RECORD_LAYER_release(&s->rlayer);\n SSL_CTX_free(s->ctx);\n ASYNC_WAIT_CTX_free(s->waitctx);\n#if !defined(OPENSSL_NO_NEXTPROTONEG)\n OPENSSL_free(s->next_proto_negotiated);\n#endif\n#ifndef OPENSSL_NO_SRTP\n sk_SRTP_PROTECTION_PROFILE_free(s->srtp_profiles);\n#endif\n CRYPTO_THREAD_lock_free(s->lock);\n OPENSSL_free(s);\n}', 'int ssl_clear_bad_session(SSL *s)\n{\n if ((s->session != NULL) &&\n !(s->shutdown & SSL_SENT_SHUTDOWN) &&\n !(SSL_in_init(s) || SSL_in_before(s))) {\n SSL_CTX_remove_session(s->session_ctx, s->session);\n return (1);\n } else\n return (0);\n}', 'int SSL_CTX_remove_session(SSL_CTX *ctx, SSL_SESSION *c)\n{\n return remove_session_lock(ctx, c, 1);\n}', 'static int remove_session_lock(SSL_CTX *ctx, SSL_SESSION *c, int lck)\n{\n SSL_SESSION *r;\n int ret = 0;\n if ((c != NULL) && (c->session_id_length != 0)) {\n if (lck)\n CRYPTO_THREAD_write_lock(ctx->lock);\n if ((r = lh_SSL_SESSION_retrieve(ctx->sessions, c)) == c) {\n ret = 1;\n r = lh_SSL_SESSION_delete(ctx->sessions, c);\n SSL_SESSION_list_remove(ctx, c);\n }\n c->not_resumable = 1;\n if (lck)\n CRYPTO_THREAD_unlock(ctx->lock);\n if (ret)\n SSL_SESSION_free(r);\n if (ctx->remove_session_cb != NULL)\n ctx->remove_session_cb(ctx, c);\n } else\n ret = 0;\n return (ret);\n}', 'DEFINE_LHASH_OF(SSL_SESSION)', 'void *OPENSSL_LH_delete(OPENSSL_LHASH *lh, const void *data)\n{\n unsigned long hash;\n OPENSSL_LH_NODE *nn, **rn;\n void *ret;\n lh->error = 0;\n rn = getrn(lh, data, &hash);\n if (*rn == NULL) {\n lh->num_no_delete++;\n return (NULL);\n } else {\n nn = *rn;\n *rn = nn->next;\n ret = nn->data;\n OPENSSL_free(nn);\n lh->num_delete++;\n }\n lh->num_items--;\n if ((lh->num_nodes > MIN_NODES) &&\n (lh->down_load >= (lh->num_items * LH_LOAD_MULT / lh->num_nodes)))\n contract(lh);\n return (ret);\n}'] |
25,954 | 0 | https://github.com/openssl/openssl/blob/8da94770f0a049497b1a52ee469cca1f4a13b1a7/crypto/bn/bn_lib.c/#L352 | static BN_ULONG *bn_expand_internal(const BIGNUM *b, int words)
{
BN_ULONG *A, *a = NULL;
const BN_ULONG *B;
int i;
bn_check_top(b);
if (words > (INT_MAX / (4 * BN_BITS2))) {
BNerr(BN_F_BN_EXPAND_INTERNAL, BN_R_BIGNUM_TOO_LONG);
return NULL;
}
if (BN_get_flags(b, BN_FLG_STATIC_DATA)) {
BNerr(BN_F_BN_EXPAND_INTERNAL, BN_R_EXPAND_ON_STATIC_BIGNUM_DATA);
return (NULL);
}
if (BN_get_flags(b,BN_FLG_SECURE))
a = A = OPENSSL_secure_malloc(words * sizeof(*a));
else
a = A = OPENSSL_malloc(words * sizeof(*a));
if (A == NULL) {
BNerr(BN_F_BN_EXPAND_INTERNAL, ERR_R_MALLOC_FAILURE);
return (NULL);
}
#ifdef PURIFY
memset(a, 0, sizeof(*a) * words);
#endif
#if 1
B = b->d;
if (B != NULL) {
for (i = b->top >> 2; i > 0; i--, A += 4, B += 4) {
BN_ULONG a0, a1, a2, a3;
a0 = B[0];
a1 = B[1];
a2 = B[2];
a3 = B[3];
A[0] = a0;
A[1] = a1;
A[2] = a2;
A[3] = a3;
}
switch (b->top & 3) {
case 3:
A[2] = B[2];
case 2:
A[1] = B[1];
case 1:
A[0] = B[0];
case 0:
;
}
}
#else
memset(A, 0, sizeof(*A) * words);
memcpy(A, b->d, sizeof(b->d[0]) * b->top);
#endif
return (a);
} | ['int RSA_check_key_ex(const RSA *key, BN_GENCB *cb)\n{\n BIGNUM *i, *j, *k, *l, *m;\n BN_CTX *ctx;\n int r;\n int ret = 1;\n if (!key->p || !key->q || !key->n || !key->e || !key->d) {\n RSAerr(RSA_F_RSA_CHECK_KEY_EX, RSA_R_VALUE_MISSING);\n return 0;\n }\n i = BN_new();\n j = BN_new();\n k = BN_new();\n l = BN_new();\n m = BN_new();\n ctx = BN_CTX_new();\n if (i == NULL || j == NULL || k == NULL || l == NULL ||\n m == NULL || ctx == NULL) {\n ret = -1;\n RSAerr(RSA_F_RSA_CHECK_KEY_EX, ERR_R_MALLOC_FAILURE);\n goto err;\n }\n r = BN_is_prime_ex(key->p, BN_prime_checks, NULL, cb);\n if (r != 1) {\n ret = r;\n if (r != 0)\n goto err;\n RSAerr(RSA_F_RSA_CHECK_KEY_EX, RSA_R_P_NOT_PRIME);\n }\n r = BN_is_prime_ex(key->q, BN_prime_checks, NULL, cb);\n if (r != 1) {\n ret = r;\n if (r != 0)\n goto err;\n RSAerr(RSA_F_RSA_CHECK_KEY_EX, RSA_R_Q_NOT_PRIME);\n }\n r = BN_mul(i, key->p, key->q, ctx);\n if (!r) {\n ret = -1;\n goto err;\n }\n if (BN_cmp(i, key->n) != 0) {\n ret = 0;\n RSAerr(RSA_F_RSA_CHECK_KEY_EX, RSA_R_N_DOES_NOT_EQUAL_P_Q);\n }\n r = BN_sub(i, key->p, BN_value_one());\n if (!r) {\n ret = -1;\n goto err;\n }\n r = BN_sub(j, key->q, BN_value_one());\n if (!r) {\n ret = -1;\n goto err;\n }\n r = BN_mul(l, i, j, ctx);\n if (!r) {\n ret = -1;\n goto err;\n }\n r = BN_gcd(m, i, j, ctx);\n if (!r) {\n ret = -1;\n goto err;\n }\n r = BN_div(k, NULL, l, m, ctx);\n if (!r) {\n ret = -1;\n goto err;\n }\n r = BN_mod_mul(i, key->d, key->e, k, ctx);\n if (!r) {\n ret = -1;\n goto err;\n }\n if (!BN_is_one(i)) {\n ret = 0;\n RSAerr(RSA_F_RSA_CHECK_KEY_EX, RSA_R_D_E_NOT_CONGRUENT_TO_1);\n }\n if (key->dmp1 != NULL && key->dmq1 != NULL && key->iqmp != NULL) {\n r = BN_sub(i, key->p, BN_value_one());\n if (!r) {\n ret = -1;\n goto err;\n }\n r = BN_mod(j, key->d, i, ctx);\n if (!r) {\n ret = -1;\n goto err;\n }\n if (BN_cmp(j, key->dmp1) != 0) {\n ret = 0;\n RSAerr(RSA_F_RSA_CHECK_KEY_EX, RSA_R_DMP1_NOT_CONGRUENT_TO_D);\n }\n r = BN_sub(i, key->q, BN_value_one());\n if (!r) {\n ret = -1;\n goto err;\n }\n r = BN_mod(j, key->d, i, ctx);\n if (!r) {\n ret = -1;\n goto err;\n }\n if (BN_cmp(j, key->dmq1) != 0) {\n ret = 0;\n RSAerr(RSA_F_RSA_CHECK_KEY_EX, RSA_R_DMQ1_NOT_CONGRUENT_TO_D);\n }\n if (!BN_mod_inverse(i, key->q, key->p, ctx)) {\n ret = -1;\n goto err;\n }\n if (BN_cmp(i, key->iqmp) != 0) {\n ret = 0;\n RSAerr(RSA_F_RSA_CHECK_KEY_EX, RSA_R_IQMP_NOT_INVERSE_OF_Q);\n }\n }\n err:\n BN_free(i);\n BN_free(j);\n BN_free(k);\n BN_free(l);\n BN_free(m);\n BN_CTX_free(ctx);\n return (ret);\n}', 'int BN_is_prime_ex(const BIGNUM *a, int checks, BN_CTX *ctx_passed,\n BN_GENCB *cb)\n{\n return BN_is_prime_fasttest_ex(a, checks, ctx_passed, 0, cb);\n}', 'int BN_is_prime_fasttest_ex(const BIGNUM *a, int checks, BN_CTX *ctx_passed,\n int do_trial_division, BN_GENCB *cb)\n{\n int i, j, ret = -1;\n int k;\n BN_CTX *ctx = NULL;\n BIGNUM *A1, *A1_odd, *check;\n BN_MONT_CTX *mont = NULL;\n const BIGNUM *A = NULL;\n if (BN_cmp(a, BN_value_one()) <= 0)\n return 0;\n if (checks == BN_prime_checks)\n checks = BN_prime_checks_for_size(BN_num_bits(a));\n if (!BN_is_odd(a))\n return BN_is_word(a, 2);\n if (do_trial_division) {\n for (i = 1; i < NUMPRIMES; i++)\n if (BN_mod_word(a, primes[i]) == 0)\n return 0;\n if (!BN_GENCB_call(cb, 1, -1))\n goto err;\n }\n if (ctx_passed != NULL)\n ctx = ctx_passed;\n else if ((ctx = BN_CTX_new()) == NULL)\n goto err;\n BN_CTX_start(ctx);\n if (a->neg) {\n BIGNUM *t;\n if ((t = BN_CTX_get(ctx)) == NULL)\n goto err;\n BN_copy(t, a);\n t->neg = 0;\n A = t;\n } else\n A = a;\n A1 = BN_CTX_get(ctx);\n A1_odd = BN_CTX_get(ctx);\n check = BN_CTX_get(ctx);\n if (check == NULL)\n goto err;\n if (!BN_copy(A1, A))\n goto err;\n if (!BN_sub_word(A1, 1))\n goto err;\n if (BN_is_zero(A1)) {\n ret = 0;\n goto err;\n }\n k = 1;\n while (!BN_is_bit_set(A1, k))\n k++;\n if (!BN_rshift(A1_odd, A1, k))\n goto err;\n mont = BN_MONT_CTX_new();\n if (mont == NULL)\n goto err;\n if (!BN_MONT_CTX_set(mont, A, ctx))\n goto err;\n for (i = 0; i < checks; i++) {\n if (!BN_pseudo_rand_range(check, A1))\n goto err;\n if (!BN_add_word(check, 1))\n goto err;\n j = witness(check, A, A1, A1_odd, k, ctx, mont);\n if (j == -1)\n goto err;\n if (j) {\n ret = 0;\n goto err;\n }\n if (!BN_GENCB_call(cb, 1, i))\n goto err;\n }\n ret = 1;\n err:\n if (ctx != NULL) {\n BN_CTX_end(ctx);\n if (ctx_passed == NULL)\n BN_CTX_free(ctx);\n }\n BN_MONT_CTX_free(mont);\n return (ret);\n}', 'int BN_MONT_CTX_set(BN_MONT_CTX *mont, const BIGNUM *mod, BN_CTX *ctx)\n{\n int ret = 0;\n BIGNUM *Ri, *R;\n if (BN_is_zero(mod))\n return 0;\n BN_CTX_start(ctx);\n if ((Ri = BN_CTX_get(ctx)) == NULL)\n goto err;\n R = &(mont->RR);\n if (!BN_copy(&(mont->N), mod))\n goto err;\n mont->N.neg = 0;\n#ifdef MONT_WORD\n {\n BIGNUM tmod;\n BN_ULONG buf[2];\n bn_init(&tmod);\n tmod.d = buf;\n tmod.dmax = 2;\n tmod.neg = 0;\n mont->ri = (BN_num_bits(mod) + (BN_BITS2 - 1)) / BN_BITS2 * BN_BITS2;\n# if defined(OPENSSL_BN_ASM_MONT) && (BN_BITS2<=32)\n BN_zero(R);\n if (!(BN_set_bit(R, 2 * BN_BITS2)))\n goto err;\n tmod.top = 0;\n if ((buf[0] = mod->d[0]))\n tmod.top = 1;\n if ((buf[1] = mod->top > 1 ? mod->d[1] : 0))\n tmod.top = 2;\n if ((BN_mod_inverse(Ri, R, &tmod, ctx)) == NULL)\n goto err;\n if (!BN_lshift(Ri, Ri, 2 * BN_BITS2))\n goto err;\n if (!BN_is_zero(Ri)) {\n if (!BN_sub_word(Ri, 1))\n goto err;\n } else {\n if (bn_expand(Ri, (int)sizeof(BN_ULONG) * 2) == NULL)\n goto err;\n Ri->neg = 0;\n Ri->d[0] = BN_MASK2;\n Ri->d[1] = BN_MASK2;\n Ri->top = 2;\n }\n if (!BN_div(Ri, NULL, Ri, &tmod, ctx))\n goto err;\n mont->n0[0] = (Ri->top > 0) ? Ri->d[0] : 0;\n mont->n0[1] = (Ri->top > 1) ? Ri->d[1] : 0;\n# else\n BN_zero(R);\n if (!(BN_set_bit(R, BN_BITS2)))\n goto err;\n buf[0] = mod->d[0];\n buf[1] = 0;\n tmod.top = buf[0] != 0 ? 1 : 0;\n if ((BN_mod_inverse(Ri, R, &tmod, ctx)) == NULL)\n goto err;\n if (!BN_lshift(Ri, Ri, BN_BITS2))\n goto err;\n if (!BN_is_zero(Ri)) {\n if (!BN_sub_word(Ri, 1))\n goto err;\n } else {\n if (!BN_set_word(Ri, BN_MASK2))\n goto err;\n }\n if (!BN_div(Ri, NULL, Ri, &tmod, ctx))\n goto err;\n mont->n0[0] = (Ri->top > 0) ? Ri->d[0] : 0;\n mont->n0[1] = 0;\n# endif\n }\n#else\n {\n mont->ri = BN_num_bits(&mont->N);\n BN_zero(R);\n if (!BN_set_bit(R, mont->ri))\n goto err;\n if ((BN_mod_inverse(Ri, R, &mont->N, ctx)) == NULL)\n goto err;\n if (!BN_lshift(Ri, Ri, mont->ri))\n goto err;\n if (!BN_sub_word(Ri, 1))\n goto err;\n if (!BN_div(&(mont->Ni), NULL, Ri, &mont->N, ctx))\n goto err;\n }\n#endif\n BN_zero(&(mont->RR));\n if (!BN_set_bit(&(mont->RR), mont->ri * 2))\n goto err;\n if (!BN_mod(&(mont->RR), &(mont->RR), &(mont->N), ctx))\n goto err;\n ret = 1;\n err:\n BN_CTX_end(ctx);\n return ret;\n}', 'BIGNUM *BN_CTX_get(BN_CTX *ctx)\n{\n BIGNUM *ret;\n CTXDBG_ENTRY("BN_CTX_get", ctx);\n if (ctx->err_stack || ctx->too_many)\n return NULL;\n if ((ret = BN_POOL_get(&ctx->pool, ctx->flags)) == NULL) {\n ctx->too_many = 1;\n BNerr(BN_F_BN_CTX_GET, BN_R_TOO_MANY_TEMPORARY_VARIABLES);\n return NULL;\n }\n BN_zero(ret);\n ctx->used++;\n CTXDBG_RET(ctx, ret);\n return ret;\n}', 'int BN_set_word(BIGNUM *a, BN_ULONG w)\n{\n bn_check_top(a);\n if (bn_expand(a, (int)sizeof(BN_ULONG) * 8) == NULL)\n return (0);\n a->neg = 0;\n a->d[0] = w;\n a->top = (w ? 1 : 0);\n bn_check_top(a);\n return (1);\n}', 'BIGNUM *BN_mod_inverse(BIGNUM *in,\n const BIGNUM *a, const BIGNUM *n, BN_CTX *ctx)\n{\n BIGNUM *rv;\n int noinv;\n rv = int_bn_mod_inverse(in, a, n, ctx, &noinv);\n if (noinv)\n BNerr(BN_F_BN_MOD_INVERSE, BN_R_NO_INVERSE);\n return rv;\n}', 'BIGNUM *int_bn_mod_inverse(BIGNUM *in,\n const BIGNUM *a, const BIGNUM *n, BN_CTX *ctx,\n int *pnoinv)\n{\n BIGNUM *A, *B, *X, *Y, *M, *D, *T, *R = NULL;\n BIGNUM *ret = NULL;\n int sign;\n if (pnoinv)\n *pnoinv = 0;\n if ((BN_get_flags(a, BN_FLG_CONSTTIME) != 0)\n || (BN_get_flags(n, BN_FLG_CONSTTIME) != 0)) {\n return BN_mod_inverse_no_branch(in, a, n, ctx);\n }\n bn_check_top(a);\n bn_check_top(n);\n BN_CTX_start(ctx);\n A = BN_CTX_get(ctx);\n B = BN_CTX_get(ctx);\n X = BN_CTX_get(ctx);\n D = BN_CTX_get(ctx);\n M = BN_CTX_get(ctx);\n Y = BN_CTX_get(ctx);\n T = BN_CTX_get(ctx);\n if (T == NULL)\n goto err;\n if (in == NULL)\n R = BN_new();\n else\n R = in;\n if (R == NULL)\n goto err;\n BN_one(X);\n BN_zero(Y);\n if (BN_copy(B, a) == NULL)\n goto err;\n if (BN_copy(A, n) == NULL)\n goto err;\n A->neg = 0;\n if (B->neg || (BN_ucmp(B, A) >= 0)) {\n if (!BN_nnmod(B, B, A, ctx))\n goto err;\n }\n sign = -1;\n if (BN_is_odd(n) && (BN_num_bits(n) <= (BN_BITS <= 32 ? 450 : 2048))) {\n int shift;\n while (!BN_is_zero(B)) {\n shift = 0;\n while (!BN_is_bit_set(B, shift)) {\n shift++;\n if (BN_is_odd(X)) {\n if (!BN_uadd(X, X, n))\n goto err;\n }\n if (!BN_rshift1(X, X))\n goto err;\n }\n if (shift > 0) {\n if (!BN_rshift(B, B, shift))\n goto err;\n }\n shift = 0;\n while (!BN_is_bit_set(A, shift)) {\n shift++;\n if (BN_is_odd(Y)) {\n if (!BN_uadd(Y, Y, n))\n goto err;\n }\n if (!BN_rshift1(Y, Y))\n goto err;\n }\n if (shift > 0) {\n if (!BN_rshift(A, A, shift))\n goto err;\n }\n if (BN_ucmp(B, A) >= 0) {\n if (!BN_uadd(X, X, Y))\n goto err;\n if (!BN_usub(B, B, A))\n goto err;\n } else {\n if (!BN_uadd(Y, Y, X))\n goto err;\n if (!BN_usub(A, A, B))\n goto err;\n }\n }\n } else {\n while (!BN_is_zero(B)) {\n BIGNUM *tmp;\n if (BN_num_bits(A) == BN_num_bits(B)) {\n if (!BN_one(D))\n goto err;\n if (!BN_sub(M, A, B))\n goto err;\n } else if (BN_num_bits(A) == BN_num_bits(B) + 1) {\n if (!BN_lshift1(T, B))\n goto err;\n if (BN_ucmp(A, T) < 0) {\n if (!BN_one(D))\n goto err;\n if (!BN_sub(M, A, B))\n goto err;\n } else {\n if (!BN_sub(M, A, T))\n goto err;\n if (!BN_add(D, T, B))\n goto err;\n if (BN_ucmp(A, D) < 0) {\n if (!BN_set_word(D, 2))\n goto err;\n } else {\n if (!BN_set_word(D, 3))\n goto err;\n if (!BN_sub(M, M, B))\n goto err;\n }\n }\n } else {\n if (!BN_div(D, M, A, B, ctx))\n goto err;\n }\n tmp = A;\n A = B;\n B = M;\n if (BN_is_one(D)) {\n if (!BN_add(tmp, X, Y))\n goto err;\n } else {\n if (BN_is_word(D, 2)) {\n if (!BN_lshift1(tmp, X))\n goto err;\n } else if (BN_is_word(D, 4)) {\n if (!BN_lshift(tmp, X, 2))\n goto err;\n } else if (D->top == 1) {\n if (!BN_copy(tmp, X))\n goto err;\n if (!BN_mul_word(tmp, D->d[0]))\n goto err;\n } else {\n if (!BN_mul(tmp, D, X, ctx))\n goto err;\n }\n if (!BN_add(tmp, tmp, Y))\n goto err;\n }\n M = Y;\n Y = X;\n X = tmp;\n sign = -sign;\n }\n }\n if (sign < 0) {\n if (!BN_sub(Y, n, Y))\n goto err;\n }\n if (BN_is_one(A)) {\n if (!Y->neg && BN_ucmp(Y, n) < 0) {\n if (!BN_copy(R, Y))\n goto err;\n } else {\n if (!BN_nnmod(R, Y, n, ctx))\n goto err;\n }\n } else {\n if (pnoinv)\n *pnoinv = 1;\n goto err;\n }\n ret = R;\n err:\n if ((ret == NULL) && (in == NULL))\n BN_free(R);\n BN_CTX_end(ctx);\n bn_check_top(ret);\n return (ret);\n}', 'BIGNUM *BN_copy(BIGNUM *a, const BIGNUM *b)\n{\n int i;\n BN_ULONG *A;\n const BN_ULONG *B;\n bn_check_top(b);\n if (a == b)\n return (a);\n if (bn_wexpand(a, b->top) == NULL)\n return (NULL);\n#if 1\n A = a->d;\n B = b->d;\n for (i = b->top >> 2; i > 0; i--, A += 4, B += 4) {\n BN_ULONG a0, a1, a2, a3;\n a0 = B[0];\n a1 = B[1];\n a2 = B[2];\n a3 = B[3];\n A[0] = a0;\n A[1] = a1;\n A[2] = a2;\n A[3] = a3;\n }\n switch (b->top & 3) {\n case 3:\n A[2] = B[2];\n case 2:\n A[1] = B[1];\n case 1:\n A[0] = B[0];\n case 0:;\n }\n#else\n memcpy(a->d, b->d, sizeof(b->d[0]) * b->top);\n#endif\n a->top = b->top;\n a->neg = b->neg;\n bn_check_top(a);\n return (a);\n}', 'int BN_div(BIGNUM *dv, BIGNUM *rm, const BIGNUM *num, const BIGNUM *divisor,\n BN_CTX *ctx)\n{\n int norm_shift, i, loop;\n BIGNUM *tmp, wnum, *snum, *sdiv, *res;\n BN_ULONG *resp, *wnump;\n BN_ULONG d0, d1;\n int num_n, div_n;\n int no_branch = 0;\n if ((num->top > 0 && num->d[num->top - 1] == 0) ||\n (divisor->top > 0 && divisor->d[divisor->top - 1] == 0)) {\n BNerr(BN_F_BN_DIV, BN_R_NOT_INITIALIZED);\n return 0;\n }\n bn_check_top(num);\n bn_check_top(divisor);\n if ((BN_get_flags(num, BN_FLG_CONSTTIME) != 0)\n || (BN_get_flags(divisor, BN_FLG_CONSTTIME) != 0)) {\n no_branch = 1;\n }\n bn_check_top(dv);\n bn_check_top(rm);\n if (BN_is_zero(divisor)) {\n BNerr(BN_F_BN_DIV, BN_R_DIV_BY_ZERO);\n return (0);\n }\n if (!no_branch && BN_ucmp(num, divisor) < 0) {\n if (rm != NULL) {\n if (BN_copy(rm, num) == NULL)\n return (0);\n }\n if (dv != NULL)\n BN_zero(dv);\n return (1);\n }\n BN_CTX_start(ctx);\n tmp = BN_CTX_get(ctx);\n snum = BN_CTX_get(ctx);\n sdiv = BN_CTX_get(ctx);\n if (dv == NULL)\n res = BN_CTX_get(ctx);\n else\n res = dv;\n if (sdiv == NULL || res == NULL || tmp == NULL || snum == NULL)\n goto err;\n norm_shift = BN_BITS2 - ((BN_num_bits(divisor)) % BN_BITS2);\n if (!(BN_lshift(sdiv, divisor, norm_shift)))\n goto err;\n sdiv->neg = 0;\n norm_shift += BN_BITS2;\n if (!(BN_lshift(snum, num, norm_shift)))\n goto err;\n snum->neg = 0;\n if (no_branch) {\n if (snum->top <= sdiv->top + 1) {\n if (bn_wexpand(snum, sdiv->top + 2) == NULL)\n goto err;\n for (i = snum->top; i < sdiv->top + 2; i++)\n snum->d[i] = 0;\n snum->top = sdiv->top + 2;\n } else {\n if (bn_wexpand(snum, snum->top + 1) == NULL)\n goto err;\n snum->d[snum->top] = 0;\n snum->top++;\n }\n }\n div_n = sdiv->top;\n num_n = snum->top;\n loop = num_n - div_n;\n wnum.neg = 0;\n wnum.d = &(snum->d[loop]);\n wnum.top = div_n;\n wnum.dmax = snum->dmax - loop;\n d0 = sdiv->d[div_n - 1];\n d1 = (div_n == 1) ? 0 : sdiv->d[div_n - 2];\n wnump = &(snum->d[num_n - 1]);\n res->neg = (num->neg ^ divisor->neg);\n if (!bn_wexpand(res, (loop + 1)))\n goto err;\n res->top = loop - no_branch;\n resp = &(res->d[loop - 1]);\n if (!bn_wexpand(tmp, (div_n + 1)))\n goto err;\n if (!no_branch) {\n if (BN_ucmp(&wnum, sdiv) >= 0) {\n bn_clear_top2max(&wnum);\n bn_sub_words(wnum.d, wnum.d, sdiv->d, div_n);\n *resp = 1;\n } else\n res->top--;\n }\n if (res->top == 0)\n res->neg = 0;\n else\n resp--;\n for (i = 0; i < loop - 1; i++, wnump--, resp--) {\n BN_ULONG q, l0;\n# if defined(BN_DIV3W) && !defined(OPENSSL_NO_ASM)\n BN_ULONG bn_div_3_words(BN_ULONG *, BN_ULONG, BN_ULONG);\n q = bn_div_3_words(wnump, d1, d0);\n# else\n BN_ULONG n0, n1, rem = 0;\n n0 = wnump[0];\n n1 = wnump[-1];\n if (n0 == d0)\n q = BN_MASK2;\n else {\n# ifdef BN_LLONG\n BN_ULLONG t2;\n# if defined(BN_LLONG) && defined(BN_DIV2W) && !defined(bn_div_words)\n q = (BN_ULONG)(((((BN_ULLONG) n0) << BN_BITS2) | n1) / d0);\n# else\n q = bn_div_words(n0, n1, d0);\n# ifdef BN_DEBUG_LEVITTE\n fprintf(stderr, "DEBUG: bn_div_words(0x%08X,0x%08X,0x%08\\\nX) -> 0x%08X\\n", n0, n1, d0, q);\n# endif\n# endif\n# ifndef REMAINDER_IS_ALREADY_CALCULATED\n rem = (n1 - q * d0) & BN_MASK2;\n# endif\n t2 = (BN_ULLONG) d1 *q;\n for (;;) {\n if (t2 <= ((((BN_ULLONG) rem) << BN_BITS2) | wnump[-2]))\n break;\n q--;\n rem += d0;\n if (rem < d0)\n break;\n t2 -= d1;\n }\n# else\n BN_ULONG t2l, t2h;\n q = bn_div_words(n0, n1, d0);\n# ifdef BN_DEBUG_LEVITTE\n fprintf(stderr, "DEBUG: bn_div_words(0x%08X,0x%08X,0x%08\\\nX) -> 0x%08X\\n", n0, n1, d0, q);\n# endif\n# ifndef REMAINDER_IS_ALREADY_CALCULATED\n rem = (n1 - q * d0) & BN_MASK2;\n# endif\n# if defined(BN_UMULT_LOHI)\n BN_UMULT_LOHI(t2l, t2h, d1, q);\n# elif defined(BN_UMULT_HIGH)\n t2l = d1 * q;\n t2h = BN_UMULT_HIGH(d1, q);\n# else\n {\n BN_ULONG ql, qh;\n t2l = LBITS(d1);\n t2h = HBITS(d1);\n ql = LBITS(q);\n qh = HBITS(q);\n mul64(t2l, t2h, ql, qh);\n }\n# endif\n for (;;) {\n if ((t2h < rem) || ((t2h == rem) && (t2l <= wnump[-2])))\n break;\n q--;\n rem += d0;\n if (rem < d0)\n break;\n if (t2l < d1)\n t2h--;\n t2l -= d1;\n }\n# endif\n }\n# endif\n l0 = bn_mul_words(tmp->d, sdiv->d, div_n, q);\n tmp->d[div_n] = l0;\n wnum.d--;\n if (bn_sub_words(wnum.d, wnum.d, tmp->d, div_n + 1)) {\n q--;\n if (bn_add_words(wnum.d, wnum.d, sdiv->d, div_n))\n (*wnump)++;\n }\n *resp = q;\n }\n bn_correct_top(snum);\n if (rm != NULL) {\n int neg = num->neg;\n BN_rshift(rm, snum, norm_shift);\n if (!BN_is_zero(rm))\n rm->neg = neg;\n bn_check_top(rm);\n }\n if (no_branch)\n bn_correct_top(res);\n BN_CTX_end(ctx);\n return (1);\n err:\n bn_check_top(rm);\n BN_CTX_end(ctx);\n return (0);\n}', 'BIGNUM *bn_wexpand(BIGNUM *a, int words)\n{\n return (words <= a->dmax) ? a : bn_expand2(a, words);\n}', 'BIGNUM *bn_expand2(BIGNUM *b, int words)\n{\n bn_check_top(b);\n if (words > b->dmax) {\n BN_ULONG *a = bn_expand_internal(b, words);\n if (!a)\n return NULL;\n if (b->d) {\n OPENSSL_cleanse(b->d, b->dmax * sizeof(b->d[0]));\n bn_free_d(b);\n }\n b->d = a;\n b->dmax = words;\n }\n bn_check_top(b);\n return b;\n}', 'static BN_ULONG *bn_expand_internal(const BIGNUM *b, int words)\n{\n BN_ULONG *A, *a = NULL;\n const BN_ULONG *B;\n int i;\n bn_check_top(b);\n if (words > (INT_MAX / (4 * BN_BITS2))) {\n BNerr(BN_F_BN_EXPAND_INTERNAL, BN_R_BIGNUM_TOO_LONG);\n return NULL;\n }\n if (BN_get_flags(b, BN_FLG_STATIC_DATA)) {\n BNerr(BN_F_BN_EXPAND_INTERNAL, BN_R_EXPAND_ON_STATIC_BIGNUM_DATA);\n return (NULL);\n }\n if (BN_get_flags(b,BN_FLG_SECURE))\n a = A = OPENSSL_secure_malloc(words * sizeof(*a));\n else\n a = A = OPENSSL_malloc(words * sizeof(*a));\n if (A == NULL) {\n BNerr(BN_F_BN_EXPAND_INTERNAL, ERR_R_MALLOC_FAILURE);\n return (NULL);\n }\n#ifdef PURIFY\n memset(a, 0, sizeof(*a) * words);\n#endif\n#if 1\n B = b->d;\n if (B != NULL) {\n for (i = b->top >> 2; i > 0; i--, A += 4, B += 4) {\n BN_ULONG a0, a1, a2, a3;\n a0 = B[0];\n a1 = B[1];\n a2 = B[2];\n a3 = B[3];\n A[0] = a0;\n A[1] = a1;\n A[2] = a2;\n A[3] = a3;\n }\n switch (b->top & 3) {\n case 3:\n A[2] = B[2];\n case 2:\n A[1] = B[1];\n case 1:\n A[0] = B[0];\n case 0:\n ;\n }\n }\n#else\n memset(A, 0, sizeof(*A) * words);\n memcpy(A, b->d, sizeof(b->d[0]) * b->top);\n#endif\n return (a);\n}'] |
25,955 | 0 | https://github.com/libav/libav/blob/6cecd63005b29a1dc3a5104e6ac85fd112705122/libavcodec/mlpdec.c/#L1076 | static int read_access_unit(AVCodecContext *avctx, void* data, int *data_size,
AVPacket *avpkt)
{
const uint8_t *buf = avpkt->data;
int buf_size = avpkt->size;
MLPDecodeContext *m = avctx->priv_data;
GetBitContext gb;
unsigned int length, substr;
unsigned int substream_start;
unsigned int header_size = 4;
unsigned int substr_header_size = 0;
uint8_t substream_parity_present[MAX_SUBSTREAMS];
uint16_t substream_data_len[MAX_SUBSTREAMS];
uint8_t parity_bits;
if (buf_size < 4)
return 0;
length = (AV_RB16(buf) & 0xfff) * 2;
if (length > buf_size)
return -1;
init_get_bits(&gb, (buf + 4), (length - 4) * 8);
m->is_major_sync_unit = 0;
if (show_bits_long(&gb, 31) == (0xf8726fba >> 1)) {
if (read_major_sync(m, &gb) < 0)
goto error;
m->is_major_sync_unit = 1;
header_size += 28;
}
if (!m->params_valid) {
av_log(m->avctx, AV_LOG_WARNING,
"Stream parameters not seen; skipping frame.\n");
*data_size = 0;
return length;
}
substream_start = 0;
for (substr = 0; substr < m->num_substreams; substr++) {
int extraword_present, checkdata_present, end, nonrestart_substr;
extraword_present = get_bits1(&gb);
nonrestart_substr = get_bits1(&gb);
checkdata_present = get_bits1(&gb);
skip_bits1(&gb);
end = get_bits(&gb, 12) * 2;
substr_header_size += 2;
if (extraword_present) {
if (m->avctx->codec_id == CODEC_ID_MLP) {
av_log(m->avctx, AV_LOG_ERROR, "There must be no extraword for MLP.\n");
goto error;
}
skip_bits(&gb, 16);
substr_header_size += 2;
}
if (!(nonrestart_substr ^ m->is_major_sync_unit)) {
av_log(m->avctx, AV_LOG_ERROR, "Invalid nonrestart_substr.\n");
goto error;
}
if (end + header_size + substr_header_size > length) {
av_log(m->avctx, AV_LOG_ERROR,
"Indicated length of substream %d data goes off end of "
"packet.\n", substr);
end = length - header_size - substr_header_size;
}
if (end < substream_start) {
av_log(avctx, AV_LOG_ERROR,
"Indicated end offset of substream %d data "
"is smaller than calculated start offset.\n",
substr);
goto error;
}
if (substr > m->max_decoded_substream)
continue;
substream_parity_present[substr] = checkdata_present;
substream_data_len[substr] = end - substream_start;
substream_start = end;
}
parity_bits = ff_mlp_calculate_parity(buf, 4);
parity_bits ^= ff_mlp_calculate_parity(buf + header_size, substr_header_size);
if ((((parity_bits >> 4) ^ parity_bits) & 0xF) != 0xF) {
av_log(avctx, AV_LOG_ERROR, "Parity check failed.\n");
goto error;
}
buf += header_size + substr_header_size;
for (substr = 0; substr <= m->max_decoded_substream; substr++) {
SubStream *s = &m->substream[substr];
init_get_bits(&gb, buf, substream_data_len[substr] * 8);
m->matrix_changed = 0;
memset(m->filter_changed, 0, sizeof(m->filter_changed));
s->blockpos = 0;
do {
unsigned int ch;
if (get_bits1(&gb)) {
if (get_bits1(&gb)) {
if (read_restart_header(m, &gb, buf, substr) < 0)
goto next_substr;
s->restart_seen = 1;
}
if (!s->restart_seen) {
goto next_substr;
}
if (read_decoding_params(m, &gb, substr) < 0)
goto next_substr;
}
if (m->matrix_changed > 1) {
av_log(m->avctx, AV_LOG_ERROR, "Matrices may change only once per access unit.\n");
goto next_substr;
}
for (ch = 0; ch < s->max_channel; ch++)
if (m->filter_changed[ch][FIR] > 1 ||
m->filter_changed[ch][IIR] > 1) {
av_log(m->avctx, AV_LOG_ERROR, "Filters may change only once per access unit.\n");
goto next_substr;
}
if (!s->restart_seen) {
goto next_substr;
}
if (read_block_data(m, &gb, substr) < 0)
return -1;
if (get_bits_count(&gb) >= substream_data_len[substr] * 8)
goto substream_length_mismatch;
} while (!get_bits1(&gb));
skip_bits(&gb, (-get_bits_count(&gb)) & 15);
if (substream_data_len[substr] * 8 - get_bits_count(&gb) >= 32) {
int shorten_by;
if (get_bits(&gb, 16) != 0xD234)
return -1;
shorten_by = get_bits(&gb, 16);
if (m->avctx->codec_id == CODEC_ID_TRUEHD && shorten_by & 0x2000)
s->blockpos -= FFMIN(shorten_by & 0x1FFF, s->blockpos);
else if (m->avctx->codec_id == CODEC_ID_MLP && shorten_by != 0xD234)
return -1;
if (substr == m->max_decoded_substream)
av_log(m->avctx, AV_LOG_INFO, "End of stream indicated.\n");
}
if (substream_parity_present[substr]) {
uint8_t parity, checksum;
if (substream_data_len[substr] * 8 - get_bits_count(&gb) != 16)
goto substream_length_mismatch;
parity = ff_mlp_calculate_parity(buf, substream_data_len[substr] - 2);
checksum = ff_mlp_checksum8 (buf, substream_data_len[substr] - 2);
if ((get_bits(&gb, 8) ^ parity) != 0xa9 )
av_log(m->avctx, AV_LOG_ERROR, "Substream %d parity check failed.\n", substr);
if ( get_bits(&gb, 8) != checksum)
av_log(m->avctx, AV_LOG_ERROR, "Substream %d checksum failed.\n" , substr);
}
if (substream_data_len[substr] * 8 != get_bits_count(&gb)) {
goto substream_length_mismatch;
}
next_substr:
if (!s->restart_seen) {
av_log(m->avctx, AV_LOG_ERROR,
"No restart header present in substream %d.\n", substr);
}
buf += substream_data_len[substr];
}
rematrix_channels(m, m->max_decoded_substream);
if (output_data(m, m->max_decoded_substream, data, data_size) < 0)
return -1;
return length;
substream_length_mismatch:
av_log(m->avctx, AV_LOG_ERROR, "substream %d length mismatch\n", substr);
return -1;
error:
m->params_valid = 0;
return -1;
} | ['static int read_access_unit(AVCodecContext *avctx, void* data, int *data_size,\n AVPacket *avpkt)\n{\n const uint8_t *buf = avpkt->data;\n int buf_size = avpkt->size;\n MLPDecodeContext *m = avctx->priv_data;\n GetBitContext gb;\n unsigned int length, substr;\n unsigned int substream_start;\n unsigned int header_size = 4;\n unsigned int substr_header_size = 0;\n uint8_t substream_parity_present[MAX_SUBSTREAMS];\n uint16_t substream_data_len[MAX_SUBSTREAMS];\n uint8_t parity_bits;\n if (buf_size < 4)\n return 0;\n length = (AV_RB16(buf) & 0xfff) * 2;\n if (length > buf_size)\n return -1;\n init_get_bits(&gb, (buf + 4), (length - 4) * 8);\n m->is_major_sync_unit = 0;\n if (show_bits_long(&gb, 31) == (0xf8726fba >> 1)) {\n if (read_major_sync(m, &gb) < 0)\n goto error;\n m->is_major_sync_unit = 1;\n header_size += 28;\n }\n if (!m->params_valid) {\n av_log(m->avctx, AV_LOG_WARNING,\n "Stream parameters not seen; skipping frame.\\n");\n *data_size = 0;\n return length;\n }\n substream_start = 0;\n for (substr = 0; substr < m->num_substreams; substr++) {\n int extraword_present, checkdata_present, end, nonrestart_substr;\n extraword_present = get_bits1(&gb);\n nonrestart_substr = get_bits1(&gb);\n checkdata_present = get_bits1(&gb);\n skip_bits1(&gb);\n end = get_bits(&gb, 12) * 2;\n substr_header_size += 2;\n if (extraword_present) {\n if (m->avctx->codec_id == CODEC_ID_MLP) {\n av_log(m->avctx, AV_LOG_ERROR, "There must be no extraword for MLP.\\n");\n goto error;\n }\n skip_bits(&gb, 16);\n substr_header_size += 2;\n }\n if (!(nonrestart_substr ^ m->is_major_sync_unit)) {\n av_log(m->avctx, AV_LOG_ERROR, "Invalid nonrestart_substr.\\n");\n goto error;\n }\n if (end + header_size + substr_header_size > length) {\n av_log(m->avctx, AV_LOG_ERROR,\n "Indicated length of substream %d data goes off end of "\n "packet.\\n", substr);\n end = length - header_size - substr_header_size;\n }\n if (end < substream_start) {\n av_log(avctx, AV_LOG_ERROR,\n "Indicated end offset of substream %d data "\n "is smaller than calculated start offset.\\n",\n substr);\n goto error;\n }\n if (substr > m->max_decoded_substream)\n continue;\n substream_parity_present[substr] = checkdata_present;\n substream_data_len[substr] = end - substream_start;\n substream_start = end;\n }\n parity_bits = ff_mlp_calculate_parity(buf, 4);\n parity_bits ^= ff_mlp_calculate_parity(buf + header_size, substr_header_size);\n if ((((parity_bits >> 4) ^ parity_bits) & 0xF) != 0xF) {\n av_log(avctx, AV_LOG_ERROR, "Parity check failed.\\n");\n goto error;\n }\n buf += header_size + substr_header_size;\n for (substr = 0; substr <= m->max_decoded_substream; substr++) {\n SubStream *s = &m->substream[substr];\n init_get_bits(&gb, buf, substream_data_len[substr] * 8);\n m->matrix_changed = 0;\n memset(m->filter_changed, 0, sizeof(m->filter_changed));\n s->blockpos = 0;\n do {\n unsigned int ch;\n if (get_bits1(&gb)) {\n if (get_bits1(&gb)) {\n if (read_restart_header(m, &gb, buf, substr) < 0)\n goto next_substr;\n s->restart_seen = 1;\n }\n if (!s->restart_seen) {\n goto next_substr;\n }\n if (read_decoding_params(m, &gb, substr) < 0)\n goto next_substr;\n }\n if (m->matrix_changed > 1) {\n av_log(m->avctx, AV_LOG_ERROR, "Matrices may change only once per access unit.\\n");\n goto next_substr;\n }\n for (ch = 0; ch < s->max_channel; ch++)\n if (m->filter_changed[ch][FIR] > 1 ||\n m->filter_changed[ch][IIR] > 1) {\n av_log(m->avctx, AV_LOG_ERROR, "Filters may change only once per access unit.\\n");\n goto next_substr;\n }\n if (!s->restart_seen) {\n goto next_substr;\n }\n if (read_block_data(m, &gb, substr) < 0)\n return -1;\n if (get_bits_count(&gb) >= substream_data_len[substr] * 8)\n goto substream_length_mismatch;\n } while (!get_bits1(&gb));\n skip_bits(&gb, (-get_bits_count(&gb)) & 15);\n if (substream_data_len[substr] * 8 - get_bits_count(&gb) >= 32) {\n int shorten_by;\n if (get_bits(&gb, 16) != 0xD234)\n return -1;\n shorten_by = get_bits(&gb, 16);\n if (m->avctx->codec_id == CODEC_ID_TRUEHD && shorten_by & 0x2000)\n s->blockpos -= FFMIN(shorten_by & 0x1FFF, s->blockpos);\n else if (m->avctx->codec_id == CODEC_ID_MLP && shorten_by != 0xD234)\n return -1;\n if (substr == m->max_decoded_substream)\n av_log(m->avctx, AV_LOG_INFO, "End of stream indicated.\\n");\n }\n if (substream_parity_present[substr]) {\n uint8_t parity, checksum;\n if (substream_data_len[substr] * 8 - get_bits_count(&gb) != 16)\n goto substream_length_mismatch;\n parity = ff_mlp_calculate_parity(buf, substream_data_len[substr] - 2);\n checksum = ff_mlp_checksum8 (buf, substream_data_len[substr] - 2);\n if ((get_bits(&gb, 8) ^ parity) != 0xa9 )\n av_log(m->avctx, AV_LOG_ERROR, "Substream %d parity check failed.\\n", substr);\n if ( get_bits(&gb, 8) != checksum)\n av_log(m->avctx, AV_LOG_ERROR, "Substream %d checksum failed.\\n" , substr);\n }\n if (substream_data_len[substr] * 8 != get_bits_count(&gb)) {\n goto substream_length_mismatch;\n }\nnext_substr:\n if (!s->restart_seen) {\n av_log(m->avctx, AV_LOG_ERROR,\n "No restart header present in substream %d.\\n", substr);\n }\n buf += substream_data_len[substr];\n }\n rematrix_channels(m, m->max_decoded_substream);\n if (output_data(m, m->max_decoded_substream, data, data_size) < 0)\n return -1;\n return length;\nsubstream_length_mismatch:\n av_log(m->avctx, AV_LOG_ERROR, "substream %d length mismatch\\n", substr);\n return -1;\nerror:\n m->params_valid = 0;\n return -1;\n}'] |
25,956 | 0 | https://github.com/openssl/openssl/blob/d62bfb39cd1d41856b82a76158483df12bcab7d6/crypto/lhash/lhash.c/#L365 | static void contract(LHASH *lh)
{
LHASH_NODE **n,*n1,*np;
np=lh->b[lh->p+lh->pmax-1];
lh->b[lh->p+lh->pmax-1]=NULL;
if (lh->p == 0)
{
n=(LHASH_NODE **)OPENSSL_realloc(lh->b,
(unsigned int)(sizeof(LHASH_NODE *)*lh->pmax));
if (n == NULL)
{
lh->error++;
return;
}
lh->num_contract_reallocs++;
lh->num_alloc_nodes/=2;
lh->pmax/=2;
lh->p=lh->pmax-1;
lh->b=n;
}
else
lh->p--;
lh->num_nodes--;
lh->num_contracts++;
n1=lh->b[(int)lh->p];
if (n1 == NULL)
lh->b[(int)lh->p]=np;
else
{
while (n1->next != NULL)
n1=n1->next;
n1->next=np;
}
} | ['static int sv_body(char *hostname, int s, unsigned char *context)\n\t{\n\tchar *buf=NULL;\n\tfd_set readfds;\n\tint ret=1,width;\n\tint k,i;\n\tunsigned long l;\n\tSSL *con=NULL;\n\tBIO *sbio;\n#ifdef OPENSSL_SYS_WINDOWS\n\tstruct timeval tv;\n#endif\n\tif ((buf=OPENSSL_malloc(bufsize)) == NULL)\n\t\t{\n\t\tBIO_printf(bio_err,"out of memory\\n");\n\t\tgoto err;\n\t\t}\n#ifdef FIONBIO\n\tif (s_nbio)\n\t\t{\n\t\tunsigned long sl=1;\n\t\tif (!s_quiet)\n\t\t\tBIO_printf(bio_err,"turning on non blocking io\\n");\n\t\tif (BIO_socket_ioctl(s,FIONBIO,&sl) < 0)\n\t\t\tERR_print_errors(bio_err);\n\t\t}\n#endif\n\tif (con == NULL) {\n\t\tcon=SSL_new(ctx);\n#ifndef OPENSSL_NO_KRB5\n\t\tif ((con->kssl_ctx = kssl_ctx_new()) != NULL)\n {\n kssl_ctx_setstring(con->kssl_ctx, KSSL_SERVICE,\n\t\t\t\t\t\t\t\tKRB5SVC);\n kssl_ctx_setstring(con->kssl_ctx, KSSL_KEYTAB,\n\t\t\t\t\t\t\t\tKRB5KEYTAB);\n }\n#endif\n\t\tif(context)\n\t\t SSL_set_session_id_context(con, context,\n\t\t\t\t\t\t strlen((char *)context));\n\t}\n\tSSL_clear(con);\n\tsbio=BIO_new_socket(s,BIO_NOCLOSE);\n\tif (s_nbio_test)\n\t\t{\n\t\tBIO *test;\n\t\ttest=BIO_new(BIO_f_nbio_test());\n\t\tsbio=BIO_push(test,sbio);\n\t\t}\n\tSSL_set_bio(con,sbio,sbio);\n\tSSL_set_accept_state(con);\n\tif (s_debug)\n\t\t{\n\t\tcon->debug=1;\n\t\tBIO_set_callback(SSL_get_rbio(con),bio_dump_cb);\n\t\tBIO_set_callback_arg(SSL_get_rbio(con),bio_s_out);\n\t\t}\n\tif (s_msg)\n\t\t{\n\t\tSSL_set_msg_callback(con, msg_cb);\n\t\tSSL_set_msg_callback_arg(con, bio_s_out);\n\t\t}\n\twidth=s+1;\n\tfor (;;)\n\t\t{\n\t\tint read_from_terminal;\n\t\tint read_from_sslcon;\n\t\tread_from_terminal = 0;\n\t\tread_from_sslcon = SSL_pending(con);\n\t\tif (!read_from_sslcon)\n\t\t\t{\n\t\t\tFD_ZERO(&readfds);\n#ifndef OPENSSL_SYS_WINDOWS\n\t\t\tFD_SET(fileno(stdin),&readfds);\n#endif\n\t\t\tFD_SET(s,&readfds);\n#ifdef OPENSSL_SYS_WINDOWS\n\t\t\ttv.tv_sec = 1;\n\t\t\ttv.tv_usec = 0;\n\t\t\ti=select(width,(void *)&readfds,NULL,NULL,&tv);\n\t\t\tif((i < 0) || (!i && !_kbhit() ) )continue;\n\t\t\tif(_kbhit())\n\t\t\t\tread_from_terminal = 1;\n#else\n\t\t\ti=select(width,(void *)&readfds,NULL,NULL,NULL);\n\t\t\tif (i <= 0) continue;\n\t\t\tif (FD_ISSET(fileno(stdin),&readfds))\n\t\t\t\tread_from_terminal = 1;\n#endif\n\t\t\tif (FD_ISSET(s,&readfds))\n\t\t\t\tread_from_sslcon = 1;\n\t\t\t}\n\t\tif (read_from_terminal)\n\t\t\t{\n\t\t\tif (s_crlf)\n\t\t\t\t{\n\t\t\t\tint j, lf_num;\n\t\t\t\ti=read(fileno(stdin), buf, bufsize/2);\n\t\t\t\tlf_num = 0;\n\t\t\t\tfor (j = 0; j < i; j++)\n\t\t\t\t\tif (buf[j] == \'\\n\')\n\t\t\t\t\t\tlf_num++;\n\t\t\t\tfor (j = i-1; j >= 0; j--)\n\t\t\t\t\t{\n\t\t\t\t\tbuf[j+lf_num] = buf[j];\n\t\t\t\t\tif (buf[j] == \'\\n\')\n\t\t\t\t\t\t{\n\t\t\t\t\t\tlf_num--;\n\t\t\t\t\t\ti++;\n\t\t\t\t\t\tbuf[j+lf_num] = \'\\r\';\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\tassert(lf_num == 0);\n\t\t\t\t}\n\t\t\telse\n\t\t\t\ti=read(fileno(stdin),buf,bufsize);\n\t\t\tif (!s_quiet)\n\t\t\t\t{\n\t\t\t\tif ((i <= 0) || (buf[0] == \'Q\'))\n\t\t\t\t\t{\n\t\t\t\t\tBIO_printf(bio_s_out,"DONE\\n");\n\t\t\t\t\tSHUTDOWN(s);\n\t\t\t\t\tclose_accept_socket();\n\t\t\t\t\tret= -11;\n\t\t\t\t\tgoto err;\n\t\t\t\t\t}\n\t\t\t\tif ((i <= 0) || (buf[0] == \'q\'))\n\t\t\t\t\t{\n\t\t\t\t\tBIO_printf(bio_s_out,"DONE\\n");\n\t\t\t\t\tSHUTDOWN(s);\n\t\t\t\t\tgoto err;\n\t\t\t\t\t}\n\t\t\t\tif ((buf[0] == \'r\') &&\n\t\t\t\t\t((buf[1] == \'\\n\') || (buf[1] == \'\\r\')))\n\t\t\t\t\t{\n\t\t\t\t\tSSL_renegotiate(con);\n\t\t\t\t\ti=SSL_do_handshake(con);\n\t\t\t\t\tprintf("SSL_do_handshake -> %d\\n",i);\n\t\t\t\t\ti=0;\n\t\t\t\t\tcontinue;\n\t\t\t\t\t}\n\t\t\t\tif ((buf[0] == \'R\') &&\n\t\t\t\t\t((buf[1] == \'\\n\') || (buf[1] == \'\\r\')))\n\t\t\t\t\t{\n\t\t\t\t\tSSL_set_verify(con,\n\t\t\t\t\t\tSSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE,NULL);\n\t\t\t\t\tSSL_renegotiate(con);\n\t\t\t\t\ti=SSL_do_handshake(con);\n\t\t\t\t\tprintf("SSL_do_handshake -> %d\\n",i);\n\t\t\t\t\ti=0;\n\t\t\t\t\tcontinue;\n\t\t\t\t\t}\n\t\t\t\tif (buf[0] == \'P\')\n\t\t\t\t\t{\n\t\t\t\t\tstatic char *str="Lets print some clear text\\n";\n\t\t\t\t\tBIO_write(SSL_get_wbio(con),str,strlen(str));\n\t\t\t\t\t}\n\t\t\t\tif (buf[0] == \'S\')\n\t\t\t\t\t{\n\t\t\t\t\tprint_stats(bio_s_out,SSL_get_SSL_CTX(con));\n\t\t\t\t\t}\n\t\t\t\t}\n#ifdef CHARSET_EBCDIC\n\t\t\tebcdic2ascii(buf,buf,i);\n#endif\n\t\t\tl=k=0;\n\t\t\tfor (;;)\n\t\t\t\t{\n#ifdef RENEG\n{ static count=0; if (++count == 100) { count=0; SSL_renegotiate(con); } }\n#endif\n\t\t\t\tk=SSL_write(con,&(buf[l]),(unsigned int)i);\n\t\t\t\tswitch (SSL_get_error(con,k))\n\t\t\t\t\t{\n\t\t\t\tcase SSL_ERROR_NONE:\n\t\t\t\t\tbreak;\n\t\t\t\tcase SSL_ERROR_WANT_WRITE:\n\t\t\t\tcase SSL_ERROR_WANT_READ:\n\t\t\t\tcase SSL_ERROR_WANT_X509_LOOKUP:\n\t\t\t\t\tBIO_printf(bio_s_out,"Write BLOCK\\n");\n\t\t\t\t\tbreak;\n\t\t\t\tcase SSL_ERROR_SYSCALL:\n\t\t\t\tcase SSL_ERROR_SSL:\n\t\t\t\t\tBIO_printf(bio_s_out,"ERROR\\n");\n\t\t\t\t\tERR_print_errors(bio_err);\n\t\t\t\t\tret=1;\n\t\t\t\t\tgoto err;\n\t\t\t\tcase SSL_ERROR_ZERO_RETURN:\n\t\t\t\t\tBIO_printf(bio_s_out,"DONE\\n");\n\t\t\t\t\tret=1;\n\t\t\t\t\tgoto err;\n\t\t\t\t\t}\n\t\t\t\tl+=k;\n\t\t\t\ti-=k;\n\t\t\t\tif (i <= 0) break;\n\t\t\t\t}\n\t\t\t}\n\t\tif (read_from_sslcon)\n\t\t\t{\n\t\t\tif (!SSL_is_init_finished(con))\n\t\t\t\t{\n\t\t\t\ti=init_ssl_connection(con);\n\t\t\t\tif (i < 0)\n\t\t\t\t\t{\n\t\t\t\t\tret=0;\n\t\t\t\t\tgoto err;\n\t\t\t\t\t}\n\t\t\t\telse if (i == 0)\n\t\t\t\t\t{\n\t\t\t\t\tret=1;\n\t\t\t\t\tgoto err;\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\telse\n\t\t\t\t{\nagain:\n\t\t\t\ti=SSL_read(con,(char *)buf,bufsize);\n\t\t\t\tswitch (SSL_get_error(con,i))\n\t\t\t\t\t{\n\t\t\t\tcase SSL_ERROR_NONE:\n#ifdef CHARSET_EBCDIC\n\t\t\t\t\tascii2ebcdic(buf,buf,i);\n#endif\n\t\t\t\t\twrite(fileno(stdout),buf,\n\t\t\t\t\t\t(unsigned int)i);\n\t\t\t\t\tif (SSL_pending(con)) goto again;\n\t\t\t\t\tbreak;\n\t\t\t\tcase SSL_ERROR_WANT_WRITE:\n\t\t\t\tcase SSL_ERROR_WANT_READ:\n\t\t\t\tcase SSL_ERROR_WANT_X509_LOOKUP:\n\t\t\t\t\tBIO_printf(bio_s_out,"Read BLOCK\\n");\n\t\t\t\t\tbreak;\n\t\t\t\tcase SSL_ERROR_SYSCALL:\n\t\t\t\tcase SSL_ERROR_SSL:\n\t\t\t\t\tBIO_printf(bio_s_out,"ERROR\\n");\n\t\t\t\t\tERR_print_errors(bio_err);\n\t\t\t\t\tret=1;\n\t\t\t\t\tgoto err;\n\t\t\t\tcase SSL_ERROR_ZERO_RETURN:\n\t\t\t\t\tBIO_printf(bio_s_out,"DONE\\n");\n\t\t\t\t\tret=1;\n\t\t\t\t\tgoto err;\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t}\nerr:\n\tBIO_printf(bio_s_out,"shutting down SSL\\n");\n#if 1\n\tSSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);\n#else\n\tSSL_shutdown(con);\n#endif\n\tif (con != NULL) SSL_free(con);\n\tBIO_printf(bio_s_out,"CONNECTION CLOSED\\n");\n\tif (buf != NULL)\n\t\t{\n\t\tmemset(buf,0,bufsize);\n\t\tOPENSSL_free(buf);\n\t\t}\n\tif (ret >= 0)\n\t\tBIO_printf(bio_s_out,"ACCEPT\\n");\n\treturn(ret);\n\t}', 'SSL *SSL_new(SSL_CTX *ctx)\n\t{\n\tSSL *s;\n\tif (ctx == NULL)\n\t\t{\n\t\tSSLerr(SSL_F_SSL_NEW,SSL_R_NULL_SSL_CTX);\n\t\treturn(NULL);\n\t\t}\n\tif (ctx->method == NULL)\n\t\t{\n\t\tSSLerr(SSL_F_SSL_NEW,SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION);\n\t\treturn(NULL);\n\t\t}\n\ts=(SSL *)OPENSSL_malloc(sizeof(SSL));\n\tif (s == NULL) goto err;\n\tmemset(s,0,sizeof(SSL));\n#ifndef\tOPENSSL_NO_KRB5\n\ts->kssl_ctx = kssl_ctx_new();\n#endif\n\ts->options=ctx->options;\n\ts->mode=ctx->mode;\n\ts->max_cert_list=ctx->max_cert_list;\n\tif (ctx->cert != NULL)\n\t\t{\n\t\ts->cert = ssl_cert_dup(ctx->cert);\n\t\tif (s->cert == NULL)\n\t\t\tgoto err;\n\t\t}\n\telse\n\t\ts->cert=NULL;\n\ts->read_ahead=ctx->read_ahead;\n\ts->msg_callback=ctx->msg_callback;\n\ts->msg_callback_arg=ctx->msg_callback_arg;\n\ts->verify_mode=ctx->verify_mode;\n\ts->verify_depth=ctx->verify_depth;\n\ts->sid_ctx_length=ctx->sid_ctx_length;\n\tmemcpy(&s->sid_ctx,&ctx->sid_ctx,sizeof(s->sid_ctx));\n\ts->verify_callback=ctx->default_verify_callback;\n\ts->generate_session_id=ctx->generate_session_id;\n\ts->purpose = ctx->purpose;\n\ts->trust = ctx->trust;\n\ts->quiet_shutdown=ctx->quiet_shutdown;\n\tCRYPTO_add(&ctx->references,1,CRYPTO_LOCK_SSL_CTX);\n\ts->ctx=ctx;\n\ts->verify_result=X509_V_OK;\n\ts->method=ctx->method;\n\tif (!s->method->ssl_new(s))\n\t\tgoto err;\n\ts->references=1;\n\ts->server=(ctx->method->ssl_accept == ssl_undefined_function)?0:1;\n\tSSL_clear(s);\n\tCRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);\n\treturn(s);\nerr:\n\tif (s != NULL)\n\t\t{\n\t\tif (s->cert != NULL)\n\t\t\tssl_cert_free(s->cert);\n\t\tif (s->ctx != NULL)\n\t\t\tSSL_CTX_free(s->ctx);\n\t\tOPENSSL_free(s);\n\t\t}\n\tSSLerr(SSL_F_SSL_NEW,ERR_R_MALLOC_FAILURE);\n\treturn(NULL);\n\t}', 'int SSL_clear(SSL *s)\n\t{\n\tif (s->method == NULL)\n\t\t{\n\t\tSSLerr(SSL_F_SSL_CLEAR,SSL_R_NO_METHOD_SPECIFIED);\n\t\treturn(0);\n\t\t}\n\tif (ssl_clear_bad_session(s))\n\t\t{\n\t\tSSL_SESSION_free(s->session);\n\t\ts->session=NULL;\n\t\t}\n\ts->error=0;\n\ts->hit=0;\n\ts->shutdown=0;\n#if 0\n\tif (s->new_session) return(1);\n#else\n\tif (s->new_session)\n\t\t{\n\t\tSSLerr(SSL_F_SSL_CLEAR,ERR_R_INTERNAL_ERROR);\n\t\treturn 0;\n\t\t}\n#endif\n\ts->type=0;\n\ts->state=SSL_ST_BEFORE|((s->server)?SSL_ST_ACCEPT:SSL_ST_CONNECT);\n\ts->version=s->method->version;\n\ts->client_version=s->version;\n\ts->rwstate=SSL_NOTHING;\n\ts->rstate=SSL_ST_READ_HEADER;\n#if 0\n\ts->read_ahead=s->ctx->read_ahead;\n#endif\n\tif (s->init_buf != NULL)\n\t\t{\n\t\tBUF_MEM_free(s->init_buf);\n\t\ts->init_buf=NULL;\n\t\t}\n\tssl_clear_cipher_ctx(s);\n\ts->first_packet=0;\n#if 1\n\tif (!s->in_handshake && (s->session == NULL) && (s->method != s->ctx->method))\n\t\t{\n\t\ts->method->ssl_free(s);\n\t\ts->method=s->ctx->method;\n\t\tif (!s->method->ssl_new(s))\n\t\t\treturn(0);\n\t\t}\n\telse\n#endif\n\t\ts->method->ssl_clear(s);\n\treturn(1);\n\t}', 'int ssl_clear_bad_session(SSL *s)\n\t{\n\tif (\t(s->session != NULL) &&\n\t\t!(s->shutdown & SSL_SENT_SHUTDOWN) &&\n\t\t!(SSL_in_init(s) || SSL_in_before(s)))\n\t\t{\n\t\tSSL_CTX_remove_session(s->ctx,s->session);\n\t\treturn(1);\n\t\t}\n\telse\n\t\treturn(0);\n\t}', 'int SSL_CTX_remove_session(SSL_CTX *ctx, SSL_SESSION *c)\n{\n\treturn remove_session_lock(ctx, c, 1);\n}', 'static int remove_session_lock(SSL_CTX *ctx, SSL_SESSION *c, int lck)\n\t{\n\tSSL_SESSION *r;\n\tint ret=0;\n\tif ((c != NULL) && (c->session_id_length != 0))\n\t\t{\n\t\tif(lck) CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX);\n\t\tif ((r = (SSL_SESSION *)lh_retrieve(ctx->sessions,c)) == c)\n\t\t\t{\n\t\t\tret=1;\n\t\t\tr=(SSL_SESSION *)lh_delete(ctx->sessions,c);\n\t\t\tSSL_SESSION_list_remove(ctx,c);\n\t\t\t}\n\t\tif(lck) CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX);\n\t\tif (ret)\n\t\t\t{\n\t\t\tr->not_resumable=1;\n\t\t\tif (ctx->remove_session_cb != NULL)\n\t\t\t\tctx->remove_session_cb(ctx,r);\n\t\t\tSSL_SESSION_free(r);\n\t\t\t}\n\t\t}\n\telse\n\t\tret=0;\n\treturn(ret);\n\t}', 'void *lh_delete(LHASH *lh, const void *data)\n\t{\n\tunsigned long hash;\n\tLHASH_NODE *nn,**rn;\n\tconst void *ret;\n\tlh->error=0;\n\trn=getrn(lh,data,&hash);\n\tif (*rn == NULL)\n\t\t{\n\t\tlh->num_no_delete++;\n\t\treturn(NULL);\n\t\t}\n\telse\n\t\t{\n\t\tnn= *rn;\n\t\t*rn=nn->next;\n\t\tret=nn->data;\n\t\tOPENSSL_free(nn);\n\t\tlh->num_delete++;\n\t\t}\n\tlh->num_items--;\n\tif ((lh->num_nodes > MIN_NODES) &&\n\t\t(lh->down_load >= (lh->num_items*LH_LOAD_MULT/lh->num_nodes)))\n\t\tcontract(lh);\n\treturn((void *)ret);\n\t}', 'static void contract(LHASH *lh)\n\t{\n\tLHASH_NODE **n,*n1,*np;\n\tnp=lh->b[lh->p+lh->pmax-1];\n\tlh->b[lh->p+lh->pmax-1]=NULL;\n\tif (lh->p == 0)\n\t\t{\n\t\tn=(LHASH_NODE **)OPENSSL_realloc(lh->b,\n\t\t\t(unsigned int)(sizeof(LHASH_NODE *)*lh->pmax));\n\t\tif (n == NULL)\n\t\t\t{\n\t\t\tlh->error++;\n\t\t\treturn;\n\t\t\t}\n\t\tlh->num_contract_reallocs++;\n\t\tlh->num_alloc_nodes/=2;\n\t\tlh->pmax/=2;\n\t\tlh->p=lh->pmax-1;\n\t\tlh->b=n;\n\t\t}\n\telse\n\t\tlh->p--;\n\tlh->num_nodes--;\n\tlh->num_contracts++;\n\tn1=lh->b[(int)lh->p];\n\tif (n1 == NULL)\n\t\tlh->b[(int)lh->p]=np;\n\telse\n\t\t{\n\t\twhile (n1->next != NULL)\n\t\t\tn1=n1->next;\n\t\tn1->next=np;\n\t\t}\n\t}'] |
25,957 | 0 | https://github.com/openssl/openssl/blob/0cdcdacc337005e08a906b2e07d4e44e3ee48138/test/curve448_internal_test.c/#L638 | static int test_ed448(void)
{
uint8_t outsig[114];
EVP_MD_CTX *hashctx = EVP_MD_CTX_new();
if (!TEST_ptr(hashctx)
|| !TEST_true(ED448_sign(outsig, NULL, 0, pubkey1, privkey1, NULL,
0))
|| !TEST_int_eq(memcmp(sig1, outsig, sizeof(sig1)), 0)
|| !TEST_true(ED448_sign(outsig, msg2, sizeof(msg2), pubkey2,
privkey2, NULL, 0))
|| !TEST_int_eq(memcmp(sig2, outsig, sizeof(sig2)), 0)
|| !TEST_true(ED448_sign(outsig, msg3, sizeof(msg3), pubkey3,
privkey3, context3, sizeof(context3)))
|| !TEST_int_eq(memcmp(sig3, outsig, sizeof(sig3)), 0)
|| !TEST_true(ED448_sign(outsig, msg4, sizeof(msg4), pubkey4,
privkey4, NULL, 0))
|| !TEST_int_eq(memcmp(sig4, outsig, sizeof(sig4)), 0)
|| !TEST_true(ED448_sign(outsig, msg5, sizeof(msg5), pubkey5,
privkey5, NULL, 0))
|| !TEST_int_eq(memcmp(sig5, outsig, sizeof(sig5)), 0)
|| !TEST_true(ED448_sign(outsig, msg6, sizeof(msg6), pubkey6,
privkey6, NULL, 0))
|| !TEST_int_eq(memcmp(sig6, outsig, sizeof(sig6)), 0)
|| !TEST_true(ED448_sign(outsig, msg7, sizeof(msg7), pubkey7,
privkey7, NULL, 0))
|| !TEST_int_eq(memcmp(sig7, outsig, sizeof(sig7)), 0)
|| !TEST_true(ED448_sign(outsig, msg8, sizeof(msg8), pubkey8,
privkey8, NULL, 0))
|| !TEST_int_eq(memcmp(sig8, outsig, sizeof(sig8)), 0)
|| !TEST_true(ED448_sign(outsig, msg9, sizeof(msg9), pubkey9,
privkey9, NULL, 0))
|| !TEST_int_eq(memcmp(sig9, outsig, sizeof(sig9)), 0)
|| !TEST_true(ED448ph_sign(outsig, dohash(hashctx, phmsg1,
sizeof(phmsg1)), phpubkey1, phprivkey1,
NULL, 0))
|| !TEST_int_eq(memcmp(phsig1, outsig, sizeof(phsig1)), 0)
|| !TEST_true(ED448ph_sign(outsig, dohash(hashctx, phmsg2,
sizeof(phmsg2)), phpubkey2, phprivkey2,
phcontext2, sizeof(phcontext2)))
|| !TEST_int_eq(memcmp(phsig2, outsig, sizeof(phsig2)), 0)) {
EVP_MD_CTX_free(hashctx);
return 0;
}
EVP_MD_CTX_free(hashctx);
return 1;
} | ['static int test_ed448(void)\n{\n uint8_t outsig[114];\n EVP_MD_CTX *hashctx = EVP_MD_CTX_new();\n if (!TEST_ptr(hashctx)\n || !TEST_true(ED448_sign(outsig, NULL, 0, pubkey1, privkey1, NULL,\n 0))\n || !TEST_int_eq(memcmp(sig1, outsig, sizeof(sig1)), 0)\n || !TEST_true(ED448_sign(outsig, msg2, sizeof(msg2), pubkey2,\n privkey2, NULL, 0))\n || !TEST_int_eq(memcmp(sig2, outsig, sizeof(sig2)), 0)\n || !TEST_true(ED448_sign(outsig, msg3, sizeof(msg3), pubkey3,\n privkey3, context3, sizeof(context3)))\n || !TEST_int_eq(memcmp(sig3, outsig, sizeof(sig3)), 0)\n || !TEST_true(ED448_sign(outsig, msg4, sizeof(msg4), pubkey4,\n privkey4, NULL, 0))\n || !TEST_int_eq(memcmp(sig4, outsig, sizeof(sig4)), 0)\n || !TEST_true(ED448_sign(outsig, msg5, sizeof(msg5), pubkey5,\n privkey5, NULL, 0))\n || !TEST_int_eq(memcmp(sig5, outsig, sizeof(sig5)), 0)\n || !TEST_true(ED448_sign(outsig, msg6, sizeof(msg6), pubkey6,\n privkey6, NULL, 0))\n || !TEST_int_eq(memcmp(sig6, outsig, sizeof(sig6)), 0)\n || !TEST_true(ED448_sign(outsig, msg7, sizeof(msg7), pubkey7,\n privkey7, NULL, 0))\n || !TEST_int_eq(memcmp(sig7, outsig, sizeof(sig7)), 0)\n || !TEST_true(ED448_sign(outsig, msg8, sizeof(msg8), pubkey8,\n privkey8, NULL, 0))\n || !TEST_int_eq(memcmp(sig8, outsig, sizeof(sig8)), 0)\n || !TEST_true(ED448_sign(outsig, msg9, sizeof(msg9), pubkey9,\n privkey9, NULL, 0))\n || !TEST_int_eq(memcmp(sig9, outsig, sizeof(sig9)), 0)\n || !TEST_true(ED448ph_sign(outsig, dohash(hashctx, phmsg1,\n sizeof(phmsg1)), phpubkey1, phprivkey1,\n NULL, 0))\n || !TEST_int_eq(memcmp(phsig1, outsig, sizeof(phsig1)), 0)\n || !TEST_true(ED448ph_sign(outsig, dohash(hashctx, phmsg2,\n sizeof(phmsg2)), phpubkey2, phprivkey2,\n phcontext2, sizeof(phcontext2)))\n || !TEST_int_eq(memcmp(phsig2, outsig, sizeof(phsig2)), 0)) {\n EVP_MD_CTX_free(hashctx);\n return 0;\n }\n EVP_MD_CTX_free(hashctx);\n return 1;\n}', 'EVP_MD_CTX *EVP_MD_CTX_new(void)\n{\n return OPENSSL_zalloc(sizeof(EVP_MD_CTX));\n}', 'void *CRYPTO_zalloc(size_t num, const char *file, int line)\n{\n void *ret = CRYPTO_malloc(num, file, line);\n FAILTEST();\n if (ret != NULL)\n memset(ret, 0, num);\n return ret;\n}', 'void *CRYPTO_malloc(size_t num, const char *file, int line)\n{\n void *ret = NULL;\n INCREMENT(malloc_count);\n if (malloc_impl != NULL && malloc_impl != CRYPTO_malloc)\n return malloc_impl(num, file, line);\n if (num == 0)\n return NULL;\n FAILTEST();\n allow_customize = 0;\n#ifndef OPENSSL_NO_CRYPTO_MDEBUG\n if (call_malloc_debug) {\n CRYPTO_mem_debug_malloc(NULL, num, 0, file, line);\n ret = malloc(num);\n CRYPTO_mem_debug_malloc(ret, num, 1, file, line);\n } else {\n ret = malloc(num);\n }\n#else\n (void)(file); (void)(line);\n ret = malloc(num);\n#endif\n return ret;\n}', 'int test_ptr(const char *file, int line, const char *s, const void *p)\n{\n if (p != NULL)\n return 1;\n test_fail_message(NULL, file, line, "ptr", s, "NULL", "!=", "%p", p);\n return 0;\n}', 'int ED448_sign(uint8_t *out_sig, const uint8_t *message, size_t message_len,\n const uint8_t public_key[57], const uint8_t private_key[57],\n const uint8_t *context, size_t context_len)\n{\n return c448_ed448_sign(out_sig, private_key, public_key, message,\n message_len, 0, context, context_len)\n == C448_SUCCESS;\n}', 'c448_error_t c448_ed448_sign(\n uint8_t signature[EDDSA_448_SIGNATURE_BYTES],\n const uint8_t privkey[EDDSA_448_PRIVATE_BYTES],\n const uint8_t pubkey[EDDSA_448_PUBLIC_BYTES],\n const uint8_t *message, size_t message_len,\n uint8_t prehashed, const uint8_t *context,\n size_t context_len)\n{\n curve448_scalar_t secret_scalar;\n EVP_MD_CTX *hashctx = EVP_MD_CTX_new();\n c448_error_t ret = C448_FAILURE;\n curve448_scalar_t nonce_scalar;\n uint8_t nonce_point[EDDSA_448_PUBLIC_BYTES] = { 0 };\n unsigned int c;\n curve448_scalar_t challenge_scalar;\n if (hashctx == NULL)\n return C448_FAILURE;\n {\n uint8_t expanded[EDDSA_448_PRIVATE_BYTES * 2];\n if (!oneshot_hash(expanded, sizeof(expanded), privkey,\n EDDSA_448_PRIVATE_BYTES))\n goto err;\n clamp(expanded);\n curve448_scalar_decode_long(secret_scalar, expanded,\n EDDSA_448_PRIVATE_BYTES);\n if (!hash_init_with_dom(hashctx, prehashed, 0, context, context_len)\n || !EVP_DigestUpdate(hashctx, expanded + EDDSA_448_PRIVATE_BYTES,\n EDDSA_448_PRIVATE_BYTES)\n || !EVP_DigestUpdate(hashctx, message, message_len)) {\n OPENSSL_cleanse(expanded, sizeof(expanded));\n goto err;\n }\n OPENSSL_cleanse(expanded, sizeof(expanded));\n }\n {\n uint8_t nonce[2 * EDDSA_448_PRIVATE_BYTES];\n if (!EVP_DigestFinalXOF(hashctx, nonce, sizeof(nonce)))\n goto err;\n curve448_scalar_decode_long(nonce_scalar, nonce, sizeof(nonce));\n OPENSSL_cleanse(nonce, sizeof(nonce));\n }\n {\n curve448_scalar_t nonce_scalar_2;\n curve448_point_t p;\n curve448_scalar_halve(nonce_scalar_2, nonce_scalar);\n for (c = 2; c < C448_EDDSA_ENCODE_RATIO; c <<= 1) {\n curve448_scalar_halve(nonce_scalar_2, nonce_scalar_2);\n }\n curve448_precomputed_scalarmul(p, curve448_precomputed_base,\n nonce_scalar_2);\n curve448_point_mul_by_ratio_and_encode_like_eddsa(nonce_point, p);\n curve448_point_destroy(p);\n curve448_scalar_destroy(nonce_scalar_2);\n }\n {\n uint8_t challenge[2 * EDDSA_448_PRIVATE_BYTES];\n if (!hash_init_with_dom(hashctx, prehashed, 0, context, context_len)\n || !EVP_DigestUpdate(hashctx, nonce_point, sizeof(nonce_point))\n || !EVP_DigestUpdate(hashctx, pubkey, EDDSA_448_PUBLIC_BYTES)\n || !EVP_DigestUpdate(hashctx, message, message_len)\n || !EVP_DigestFinalXOF(hashctx, challenge, sizeof(challenge)))\n goto err;\n curve448_scalar_decode_long(challenge_scalar, challenge,\n sizeof(challenge));\n OPENSSL_cleanse(challenge, sizeof(challenge));\n }\n curve448_scalar_mul(challenge_scalar, challenge_scalar, secret_scalar);\n curve448_scalar_add(challenge_scalar, challenge_scalar, nonce_scalar);\n OPENSSL_cleanse(signature, EDDSA_448_SIGNATURE_BYTES);\n memcpy(signature, nonce_point, sizeof(nonce_point));\n curve448_scalar_encode(&signature[EDDSA_448_PUBLIC_BYTES],\n challenge_scalar);\n curve448_scalar_destroy(secret_scalar);\n curve448_scalar_destroy(nonce_scalar);\n curve448_scalar_destroy(challenge_scalar);\n ret = C448_SUCCESS;\n err:\n EVP_MD_CTX_free(hashctx);\n return ret;\n}', 'static c448_error_t oneshot_hash(uint8_t *out, size_t outlen,\n const uint8_t *in, size_t inlen)\n{\n EVP_MD_CTX *hashctx = EVP_MD_CTX_new();\n if (hashctx == NULL)\n return C448_FAILURE;\n if (!EVP_DigestInit_ex(hashctx, EVP_shake256(), NULL)\n || !EVP_DigestUpdate(hashctx, in, inlen)\n || !EVP_DigestFinalXOF(hashctx, out, outlen)) {\n EVP_MD_CTX_free(hashctx);\n return C448_FAILURE;\n }\n EVP_MD_CTX_free(hashctx);\n return C448_SUCCESS;\n}', 'void EVP_MD_CTX_free(EVP_MD_CTX *ctx)\n{\n EVP_MD_CTX_reset(ctx);\n OPENSSL_free(ctx);\n}', 'void CRYPTO_free(void *str, const char *file, int line)\n{\n INCREMENT(free_count);\n if (free_impl != NULL && free_impl != &CRYPTO_free) {\n free_impl(str, file, line);\n return;\n }\n#ifndef OPENSSL_NO_CRYPTO_MDEBUG\n if (call_malloc_debug) {\n CRYPTO_mem_debug_free(str, 0, file, line);\n free(str);\n CRYPTO_mem_debug_free(str, 1, file, line);\n } else {\n free(str);\n }\n#else\n free(str);\n#endif\n}', 'int test_true(const char *file, int line, const char *s, int b)\n{\n if (b)\n return 1;\n test_fail_message(NULL, file, line, "bool", s, "true", "==", "false");\n return 0;\n}'] |
25,958 | 0 | https://github.com/libav/libav/blob/606cc8afa1cb782311f68560c8f9bad978cdcc32/libavcodec/h264.c/#L826 | static void await_references(H264Context *h)
{
const int mb_xy = h->mb_xy;
const int mb_type = h->cur_pic.mb_type[mb_xy];
int refs[2][48];
int nrefs[2] = { 0 };
int ref, list;
memset(refs, -1, sizeof(refs));
if (IS_16X16(mb_type)) {
get_lowest_part_y(h, refs, 0, 16, 0,
IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1), nrefs);
} else if (IS_16X8(mb_type)) {
get_lowest_part_y(h, refs, 0, 8, 0,
IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1), nrefs);
get_lowest_part_y(h, refs, 8, 8, 8,
IS_DIR(mb_type, 1, 0), IS_DIR(mb_type, 1, 1), nrefs);
} else if (IS_8X16(mb_type)) {
get_lowest_part_y(h, refs, 0, 16, 0,
IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1), nrefs);
get_lowest_part_y(h, refs, 4, 16, 0,
IS_DIR(mb_type, 1, 0), IS_DIR(mb_type, 1, 1), nrefs);
} else {
int i;
assert(IS_8X8(mb_type));
for (i = 0; i < 4; i++) {
const int sub_mb_type = h->sub_mb_type[i];
const int n = 4 * i;
int y_offset = (i & 2) << 2;
if (IS_SUB_8X8(sub_mb_type)) {
get_lowest_part_y(h, refs, n, 8, y_offset,
IS_DIR(sub_mb_type, 0, 0),
IS_DIR(sub_mb_type, 0, 1),
nrefs);
} else if (IS_SUB_8X4(sub_mb_type)) {
get_lowest_part_y(h, refs, n, 4, y_offset,
IS_DIR(sub_mb_type, 0, 0),
IS_DIR(sub_mb_type, 0, 1),
nrefs);
get_lowest_part_y(h, refs, n + 2, 4, y_offset + 4,
IS_DIR(sub_mb_type, 0, 0),
IS_DIR(sub_mb_type, 0, 1),
nrefs);
} else if (IS_SUB_4X8(sub_mb_type)) {
get_lowest_part_y(h, refs, n, 8, y_offset,
IS_DIR(sub_mb_type, 0, 0),
IS_DIR(sub_mb_type, 0, 1),
nrefs);
get_lowest_part_y(h, refs, n + 1, 8, y_offset,
IS_DIR(sub_mb_type, 0, 0),
IS_DIR(sub_mb_type, 0, 1),
nrefs);
} else {
int j;
assert(IS_SUB_4X4(sub_mb_type));
for (j = 0; j < 4; j++) {
int sub_y_offset = y_offset + 2 * (j & 2);
get_lowest_part_y(h, refs, n + j, 4, sub_y_offset,
IS_DIR(sub_mb_type, 0, 0),
IS_DIR(sub_mb_type, 0, 1),
nrefs);
}
}
}
}
for (list = h->list_count - 1; list >= 0; list--)
for (ref = 0; ref < 48 && nrefs[list]; ref++) {
int row = refs[list][ref];
if (row >= 0) {
H264Picture *ref_pic = &h->ref_list[list][ref];
int ref_field = ref_pic->reference - 1;
int ref_field_picture = ref_pic->field_picture;
int pic_height = 16 * h->mb_height >> ref_field_picture;
row <<= MB_MBAFF(h);
nrefs[list]--;
if (!FIELD_PICTURE(h) && ref_field_picture) {
ff_thread_await_progress(&ref_pic->tf,
FFMIN((row >> 1) - !(row & 1),
pic_height - 1),
1);
ff_thread_await_progress(&ref_pic->tf,
FFMIN((row >> 1), pic_height - 1),
0);
} else if (FIELD_PICTURE(h) && !ref_field_picture) {
ff_thread_await_progress(&ref_pic->tf,
FFMIN(row * 2 + ref_field,
pic_height - 1),
0);
} else if (FIELD_PICTURE(h)) {
ff_thread_await_progress(&ref_pic->tf,
FFMIN(row, pic_height - 1),
ref_field);
} else {
ff_thread_await_progress(&ref_pic->tf,
FFMIN(row, pic_height - 1),
0);
}
}
}
} | ['static int decode_slice(struct AVCodecContext *avctx, void *arg)\n{\n H264Context *h = *(void **)arg;\n int lf_x_start = h->mb_x;\n h->mb_skip_run = -1;\n h->is_complex = FRAME_MBAFF(h) || h->picture_structure != PICT_FRAME ||\n avctx->codec_id != AV_CODEC_ID_H264 ||\n (CONFIG_GRAY && (h->flags & CODEC_FLAG_GRAY));\n if (h->pps.cabac) {\n align_get_bits(&h->gb);\n ff_init_cabac_decoder(&h->cabac,\n h->gb.buffer + get_bits_count(&h->gb) / 8,\n (get_bits_left(&h->gb) + 7) / 8);\n ff_h264_init_cabac_states(h);\n for (;;) {\n int ret = ff_h264_decode_mb_cabac(h);\n int eos;\n if (ret >= 0)\n ff_h264_hl_decode_mb(h);\n if (ret >= 0 && FRAME_MBAFF(h)) {\n h->mb_y++;\n ret = ff_h264_decode_mb_cabac(h);\n if (ret >= 0)\n ff_h264_hl_decode_mb(h);\n h->mb_y--;\n }\n eos = get_cabac_terminate(&h->cabac);\n if ((h->workaround_bugs & FF_BUG_TRUNCATED) &&\n h->cabac.bytestream > h->cabac.bytestream_end + 2) {\n er_add_slice(h, h->resync_mb_x, h->resync_mb_y, h->mb_x - 1,\n h->mb_y, ER_MB_END);\n if (h->mb_x >= lf_x_start)\n loop_filter(h, lf_x_start, h->mb_x + 1);\n return 0;\n }\n if (ret < 0 || h->cabac.bytestream > h->cabac.bytestream_end + 2) {\n av_log(h->avctx, AV_LOG_ERROR,\n "error while decoding MB %d %d, bytestream %td\\n",\n h->mb_x, h->mb_y,\n h->cabac.bytestream_end - h->cabac.bytestream);\n er_add_slice(h, h->resync_mb_x, h->resync_mb_y, h->mb_x,\n h->mb_y, ER_MB_ERROR);\n return AVERROR_INVALIDDATA;\n }\n if (++h->mb_x >= h->mb_width) {\n loop_filter(h, lf_x_start, h->mb_x);\n h->mb_x = lf_x_start = 0;\n decode_finish_row(h);\n ++h->mb_y;\n if (FIELD_OR_MBAFF_PICTURE(h)) {\n ++h->mb_y;\n if (FRAME_MBAFF(h) && h->mb_y < h->mb_height)\n predict_field_decoding_flag(h);\n }\n }\n if (eos || h->mb_y >= h->mb_height) {\n tprintf(h->avctx, "slice end %d %d\\n",\n get_bits_count(&h->gb), h->gb.size_in_bits);\n er_add_slice(h, h->resync_mb_x, h->resync_mb_y, h->mb_x - 1,\n h->mb_y, ER_MB_END);\n if (h->mb_x > lf_x_start)\n loop_filter(h, lf_x_start, h->mb_x);\n return 0;\n }\n }\n } else {\n for (;;) {\n int ret = ff_h264_decode_mb_cavlc(h);\n if (ret >= 0)\n ff_h264_hl_decode_mb(h);\n if (ret >= 0 && FRAME_MBAFF(h)) {\n h->mb_y++;\n ret = ff_h264_decode_mb_cavlc(h);\n if (ret >= 0)\n ff_h264_hl_decode_mb(h);\n h->mb_y--;\n }\n if (ret < 0) {\n av_log(h->avctx, AV_LOG_ERROR,\n "error while decoding MB %d %d\\n", h->mb_x, h->mb_y);\n er_add_slice(h, h->resync_mb_x, h->resync_mb_y, h->mb_x,\n h->mb_y, ER_MB_ERROR);\n return ret;\n }\n if (++h->mb_x >= h->mb_width) {\n loop_filter(h, lf_x_start, h->mb_x);\n h->mb_x = lf_x_start = 0;\n decode_finish_row(h);\n ++h->mb_y;\n if (FIELD_OR_MBAFF_PICTURE(h)) {\n ++h->mb_y;\n if (FRAME_MBAFF(h) && h->mb_y < h->mb_height)\n predict_field_decoding_flag(h);\n }\n if (h->mb_y >= h->mb_height) {\n tprintf(h->avctx, "slice end %d %d\\n",\n get_bits_count(&h->gb), h->gb.size_in_bits);\n if (get_bits_left(&h->gb) == 0) {\n er_add_slice(h, h->resync_mb_x, h->resync_mb_y,\n h->mb_x - 1, h->mb_y,\n ER_MB_END);\n return 0;\n } else {\n er_add_slice(h, h->resync_mb_x, h->resync_mb_y,\n h->mb_x - 1, h->mb_y,\n ER_MB_END);\n return AVERROR_INVALIDDATA;\n }\n }\n }\n if (get_bits_left(&h->gb) <= 0 && h->mb_skip_run <= 0) {\n tprintf(h->avctx, "slice end %d %d\\n",\n get_bits_count(&h->gb), h->gb.size_in_bits);\n if (get_bits_left(&h->gb) == 0) {\n er_add_slice(h, h->resync_mb_x, h->resync_mb_y,\n h->mb_x - 1, h->mb_y,\n ER_MB_END);\n if (h->mb_x > lf_x_start)\n loop_filter(h, lf_x_start, h->mb_x);\n return 0;\n } else {\n er_add_slice(h, h->resync_mb_x, h->resync_mb_y, h->mb_x,\n h->mb_y, ER_MB_ERROR);\n return AVERROR_INVALIDDATA;\n }\n }\n }\n }\n}', 'int ff_h264_decode_mb_cabac(H264Context *h) {\n int mb_xy;\n int mb_type, partition_count, cbp = 0;\n int dct8x8_allowed= h->pps.transform_8x8_mode;\n int decode_chroma = h->sps.chroma_format_idc == 1 || h->sps.chroma_format_idc == 2;\n const int pixel_shift = h->pixel_shift;\n mb_xy = h->mb_xy = h->mb_x + h->mb_y*h->mb_stride;\n tprintf(h->avctx, "pic:%d mb:%d/%d\\n", h->frame_num, h->mb_x, h->mb_y);\n if( h->slice_type_nos != AV_PICTURE_TYPE_I ) {\n int skip;\n if (FRAME_MBAFF(h) && (h->mb_y & 1) == 1 && h->prev_mb_skipped)\n skip = h->next_mb_skipped;\n else\n skip = decode_cabac_mb_skip( h, h->mb_x, h->mb_y );\n if( skip ) {\n if (FRAME_MBAFF(h) && (h->mb_y & 1) == 0) {\n h->cur_pic.mb_type[mb_xy] = MB_TYPE_SKIP;\n h->next_mb_skipped = decode_cabac_mb_skip( h, h->mb_x, h->mb_y+1 );\n if(!h->next_mb_skipped)\n h->mb_mbaff = h->mb_field_decoding_flag = decode_cabac_field_decoding_flag(h);\n }\n decode_mb_skip(h);\n h->cbp_table[mb_xy] = 0;\n h->chroma_pred_mode_table[mb_xy] = 0;\n h->last_qscale_diff = 0;\n return 0;\n }\n }\n if (FRAME_MBAFF(h)) {\n if( (h->mb_y&1) == 0 )\n h->mb_mbaff =\n h->mb_field_decoding_flag = decode_cabac_field_decoding_flag(h);\n }\n h->prev_mb_skipped = 0;\n fill_decode_neighbors(h, -(MB_FIELD(h)));\n if( h->slice_type_nos == AV_PICTURE_TYPE_B ) {\n int ctx = 0;\n assert(h->slice_type_nos == AV_PICTURE_TYPE_B);\n if( !IS_DIRECT( h->left_type[LTOP]-1 ) )\n ctx++;\n if( !IS_DIRECT( h->top_type-1 ) )\n ctx++;\n if( !get_cabac_noinline( &h->cabac, &h->cabac_state[27+ctx] ) ){\n mb_type= 0;\n }else if( !get_cabac_noinline( &h->cabac, &h->cabac_state[27+3] ) ) {\n mb_type= 1 + get_cabac_noinline( &h->cabac, &h->cabac_state[27+5] );\n }else{\n int bits;\n bits = get_cabac_noinline( &h->cabac, &h->cabac_state[27+4] ) << 3;\n bits+= get_cabac_noinline( &h->cabac, &h->cabac_state[27+5] ) << 2;\n bits+= get_cabac_noinline( &h->cabac, &h->cabac_state[27+5] ) << 1;\n bits+= get_cabac_noinline( &h->cabac, &h->cabac_state[27+5] );\n if( bits < 8 ){\n mb_type= bits + 3;\n }else if( bits == 13 ){\n mb_type= decode_cabac_intra_mb_type(h, 32, 0);\n goto decode_intra_mb;\n }else if( bits == 14 ){\n mb_type= 11;\n }else if( bits == 15 ){\n mb_type= 22;\n }else{\n bits= ( bits<<1 ) + get_cabac_noinline( &h->cabac, &h->cabac_state[27+5] );\n mb_type= bits - 4;\n }\n }\n partition_count= b_mb_type_info[mb_type].partition_count;\n mb_type= b_mb_type_info[mb_type].type;\n } else if( h->slice_type_nos == AV_PICTURE_TYPE_P ) {\n if( get_cabac_noinline( &h->cabac, &h->cabac_state[14] ) == 0 ) {\n if( get_cabac_noinline( &h->cabac, &h->cabac_state[15] ) == 0 ) {\n mb_type= 3 * get_cabac_noinline( &h->cabac, &h->cabac_state[16] );\n } else {\n mb_type= 2 - get_cabac_noinline( &h->cabac, &h->cabac_state[17] );\n }\n partition_count= p_mb_type_info[mb_type].partition_count;\n mb_type= p_mb_type_info[mb_type].type;\n } else {\n mb_type= decode_cabac_intra_mb_type(h, 17, 0);\n goto decode_intra_mb;\n }\n } else {\n mb_type= decode_cabac_intra_mb_type(h, 3, 1);\n if(h->slice_type == AV_PICTURE_TYPE_SI && mb_type)\n mb_type--;\n assert(h->slice_type_nos == AV_PICTURE_TYPE_I);\ndecode_intra_mb:\n partition_count = 0;\n cbp= i_mb_type_info[mb_type].cbp;\n h->intra16x16_pred_mode= i_mb_type_info[mb_type].pred_mode;\n mb_type= i_mb_type_info[mb_type].type;\n }\n if(MB_FIELD(h))\n mb_type |= MB_TYPE_INTERLACED;\n h->slice_table[ mb_xy ]= h->slice_num;\n if(IS_INTRA_PCM(mb_type)) {\n const int mb_size = ff_h264_mb_sizes[h->sps.chroma_format_idc] *\n h->sps.bit_depth_luma >> 3;\n const uint8_t *ptr;\n ptr= h->cabac.bytestream;\n if(h->cabac.low&0x1) ptr--;\n if(CABAC_BITS==16){\n if(h->cabac.low&0x1FF) ptr--;\n }\n if ((int) (h->cabac.bytestream_end - ptr) < mb_size)\n return -1;\n h->intra_pcm_ptr = ptr;\n ptr += mb_size;\n ff_init_cabac_decoder(&h->cabac, ptr, h->cabac.bytestream_end - ptr);\n h->cbp_table[mb_xy] = 0xf7ef;\n h->chroma_pred_mode_table[mb_xy] = 0;\n h->cur_pic.qscale_table[mb_xy] = 0;\n memset(h->non_zero_count[mb_xy], 16, 48);\n h->cur_pic.mb_type[mb_xy] = mb_type;\n h->last_qscale_diff = 0;\n return 0;\n }\n fill_decode_caches(h, mb_type);\n if( IS_INTRA( mb_type ) ) {\n int i, pred_mode;\n if( IS_INTRA4x4( mb_type ) ) {\n if( dct8x8_allowed && get_cabac_noinline( &h->cabac, &h->cabac_state[399 + h->neighbor_transform_size] ) ) {\n mb_type |= MB_TYPE_8x8DCT;\n for( i = 0; i < 16; i+=4 ) {\n int pred = pred_intra_mode( h, i );\n int mode = decode_cabac_mb_intra4x4_pred_mode( h, pred );\n fill_rectangle( &h->intra4x4_pred_mode_cache[ scan8[i] ], 2, 2, 8, mode, 1 );\n }\n } else {\n for( i = 0; i < 16; i++ ) {\n int pred = pred_intra_mode( h, i );\n h->intra4x4_pred_mode_cache[ scan8[i] ] = decode_cabac_mb_intra4x4_pred_mode( h, pred );\n av_dlog(h->avctx, "i4x4 pred=%d mode=%d\\n", pred,\n h->intra4x4_pred_mode_cache[scan8[i]]);\n }\n }\n write_back_intra_pred_mode(h);\n if( ff_h264_check_intra4x4_pred_mode(h) < 0 ) return -1;\n } else {\n h->intra16x16_pred_mode= ff_h264_check_intra_pred_mode( h, h->intra16x16_pred_mode, 0 );\n if( h->intra16x16_pred_mode < 0 ) return -1;\n }\n if(decode_chroma){\n h->chroma_pred_mode_table[mb_xy] =\n pred_mode = decode_cabac_mb_chroma_pre_mode( h );\n pred_mode= ff_h264_check_intra_pred_mode( h, pred_mode, 1 );\n if( pred_mode < 0 ) return -1;\n h->chroma_pred_mode= pred_mode;\n } else {\n h->chroma_pred_mode= DC_128_PRED8x8;\n }\n } else if( partition_count == 4 ) {\n int i, j, sub_partition_count[4], list, ref[2][4];\n if( h->slice_type_nos == AV_PICTURE_TYPE_B ) {\n for( i = 0; i < 4; i++ ) {\n h->sub_mb_type[i] = decode_cabac_b_mb_sub_type( h );\n sub_partition_count[i]= b_sub_mb_type_info[ h->sub_mb_type[i] ].partition_count;\n h->sub_mb_type[i]= b_sub_mb_type_info[ h->sub_mb_type[i] ].type;\n }\n if( IS_DIRECT(h->sub_mb_type[0] | h->sub_mb_type[1] |\n h->sub_mb_type[2] | h->sub_mb_type[3]) ) {\n ff_h264_pred_direct_motion(h, &mb_type);\n h->ref_cache[0][scan8[4]] =\n h->ref_cache[1][scan8[4]] =\n h->ref_cache[0][scan8[12]] =\n h->ref_cache[1][scan8[12]] = PART_NOT_AVAILABLE;\n for( i = 0; i < 4; i++ )\n fill_rectangle( &h->direct_cache[scan8[4*i]], 2, 2, 8, (h->sub_mb_type[i]>>1)&0xFF, 1 );\n }\n } else {\n for( i = 0; i < 4; i++ ) {\n h->sub_mb_type[i] = decode_cabac_p_mb_sub_type( h );\n sub_partition_count[i]= p_sub_mb_type_info[ h->sub_mb_type[i] ].partition_count;\n h->sub_mb_type[i]= p_sub_mb_type_info[ h->sub_mb_type[i] ].type;\n }\n }\n for( list = 0; list < h->list_count; list++ ) {\n for( i = 0; i < 4; i++ ) {\n if(IS_DIRECT(h->sub_mb_type[i])) continue;\n if(IS_DIR(h->sub_mb_type[i], 0, list)){\n int rc = h->ref_count[list] << MB_MBAFF(h);\n if (rc > 1) {\n ref[list][i] = decode_cabac_mb_ref( h, list, 4*i );\n if (ref[list][i] >= (unsigned) rc) {\n av_log(h->avctx, AV_LOG_ERROR, "Reference %d >= %d\\n", ref[list][i], rc);\n return -1;\n }\n }else\n ref[list][i] = 0;\n } else {\n ref[list][i] = -1;\n }\n h->ref_cache[list][ scan8[4*i]+1 ]=\n h->ref_cache[list][ scan8[4*i]+8 ]=h->ref_cache[list][ scan8[4*i]+9 ]= ref[list][i];\n }\n }\n if(dct8x8_allowed)\n dct8x8_allowed = get_dct8x8_allowed(h);\n for(list=0; list<h->list_count; list++){\n for(i=0; i<4; i++){\n h->ref_cache[list][ scan8[4*i] ]=h->ref_cache[list][ scan8[4*i]+1 ];\n if(IS_DIRECT(h->sub_mb_type[i])){\n fill_rectangle(h->mvd_cache[list][scan8[4*i]], 2, 2, 8, 0, 2);\n continue;\n }\n if(IS_DIR(h->sub_mb_type[i], 0, list) && !IS_DIRECT(h->sub_mb_type[i])){\n const int sub_mb_type= h->sub_mb_type[i];\n const int block_width= (sub_mb_type & (MB_TYPE_16x16|MB_TYPE_16x8)) ? 2 : 1;\n for(j=0; j<sub_partition_count[i]; j++){\n int mpx, mpy;\n int mx, my;\n const int index= 4*i + block_width*j;\n int16_t (* mv_cache)[2]= &h->mv_cache[list][ scan8[index] ];\n uint8_t (* mvd_cache)[2]= &h->mvd_cache[list][ scan8[index] ];\n pred_motion(h, index, block_width, list, h->ref_cache[list][ scan8[index] ], &mx, &my);\n DECODE_CABAC_MB_MVD( h, list, index)\n tprintf(h->avctx, "final mv:%d %d\\n", mx, my);\n if(IS_SUB_8X8(sub_mb_type)){\n mv_cache[ 1 ][0]=\n mv_cache[ 8 ][0]= mv_cache[ 9 ][0]= mx;\n mv_cache[ 1 ][1]=\n mv_cache[ 8 ][1]= mv_cache[ 9 ][1]= my;\n mvd_cache[ 1 ][0]=\n mvd_cache[ 8 ][0]= mvd_cache[ 9 ][0]= mpx;\n mvd_cache[ 1 ][1]=\n mvd_cache[ 8 ][1]= mvd_cache[ 9 ][1]= mpy;\n }else if(IS_SUB_8X4(sub_mb_type)){\n mv_cache[ 1 ][0]= mx;\n mv_cache[ 1 ][1]= my;\n mvd_cache[ 1 ][0]= mpx;\n mvd_cache[ 1 ][1]= mpy;\n }else if(IS_SUB_4X8(sub_mb_type)){\n mv_cache[ 8 ][0]= mx;\n mv_cache[ 8 ][1]= my;\n mvd_cache[ 8 ][0]= mpx;\n mvd_cache[ 8 ][1]= mpy;\n }\n mv_cache[ 0 ][0]= mx;\n mv_cache[ 0 ][1]= my;\n mvd_cache[ 0 ][0]= mpx;\n mvd_cache[ 0 ][1]= mpy;\n }\n }else{\n fill_rectangle(h->mv_cache [list][ scan8[4*i] ], 2, 2, 8, 0, 4);\n fill_rectangle(h->mvd_cache[list][ scan8[4*i] ], 2, 2, 8, 0, 2);\n }\n }\n }\n } else if( IS_DIRECT(mb_type) ) {\n ff_h264_pred_direct_motion(h, &mb_type);\n fill_rectangle(h->mvd_cache[0][scan8[0]], 4, 4, 8, 0, 2);\n fill_rectangle(h->mvd_cache[1][scan8[0]], 4, 4, 8, 0, 2);\n dct8x8_allowed &= h->sps.direct_8x8_inference_flag;\n } else {\n int list, i;\n if(IS_16X16(mb_type)){\n for(list=0; list<h->list_count; list++){\n if(IS_DIR(mb_type, 0, list)){\n int ref, rc = h->ref_count[list] << MB_MBAFF(h);\n if (rc > 1) {\n ref= decode_cabac_mb_ref(h, list, 0);\n if (ref >= (unsigned) rc) {\n av_log(h->avctx, AV_LOG_ERROR, "Reference %d >= %d\\n", ref, rc);\n return -1;\n }\n }else\n ref=0;\n fill_rectangle(&h->ref_cache[list][ scan8[0] ], 4, 4, 8, ref, 1);\n }\n }\n for(list=0; list<h->list_count; list++){\n if(IS_DIR(mb_type, 0, list)){\n int mx,my,mpx,mpy;\n pred_motion(h, 0, 4, list, h->ref_cache[list][ scan8[0] ], &mx, &my);\n DECODE_CABAC_MB_MVD( h, list, 0)\n tprintf(h->avctx, "final mv:%d %d\\n", mx, my);\n fill_rectangle(h->mvd_cache[list][ scan8[0] ], 4, 4, 8, pack8to16(mpx,mpy), 2);\n fill_rectangle(h->mv_cache[list][ scan8[0] ], 4, 4, 8, pack16to32(mx,my), 4);\n }\n }\n }\n else if(IS_16X8(mb_type)){\n for(list=0; list<h->list_count; list++){\n for(i=0; i<2; i++){\n if(IS_DIR(mb_type, i, list)){\n int ref, rc = h->ref_count[list] << MB_MBAFF(h);\n if (rc > 1) {\n ref= decode_cabac_mb_ref( h, list, 8*i );\n if (ref >= (unsigned) rc) {\n av_log(h->avctx, AV_LOG_ERROR, "Reference %d >= %d\\n", ref, rc);\n return -1;\n }\n }else\n ref=0;\n fill_rectangle(&h->ref_cache[list][ scan8[0] + 16*i ], 4, 2, 8, ref, 1);\n }else\n fill_rectangle(&h->ref_cache[list][ scan8[0] + 16*i ], 4, 2, 8, (LIST_NOT_USED&0xFF), 1);\n }\n }\n for(list=0; list<h->list_count; list++){\n for(i=0; i<2; i++){\n if(IS_DIR(mb_type, i, list)){\n int mx,my,mpx,mpy;\n pred_16x8_motion(h, 8*i, list, h->ref_cache[list][scan8[0] + 16*i], &mx, &my);\n DECODE_CABAC_MB_MVD( h, list, 8*i)\n tprintf(h->avctx, "final mv:%d %d\\n", mx, my);\n fill_rectangle(h->mvd_cache[list][ scan8[0] + 16*i ], 4, 2, 8, pack8to16(mpx,mpy), 2);\n fill_rectangle(h->mv_cache[list][ scan8[0] + 16*i ], 4, 2, 8, pack16to32(mx,my), 4);\n }else{\n fill_rectangle(h->mvd_cache[list][ scan8[0] + 16*i ], 4, 2, 8, 0, 2);\n fill_rectangle(h-> mv_cache[list][ scan8[0] + 16*i ], 4, 2, 8, 0, 4);\n }\n }\n }\n }else{\n assert(IS_8X16(mb_type));\n for(list=0; list<h->list_count; list++){\n for(i=0; i<2; i++){\n if(IS_DIR(mb_type, i, list)){\n int ref, rc = h->ref_count[list] << MB_MBAFF(h);\n if (rc > 1) {\n ref= decode_cabac_mb_ref( h, list, 4*i );\n if (ref >= (unsigned) rc) {\n av_log(h->avctx, AV_LOG_ERROR, "Reference %d >= %d\\n", ref, rc);\n return -1;\n }\n }else\n ref=0;\n fill_rectangle(&h->ref_cache[list][ scan8[0] + 2*i ], 2, 4, 8, ref, 1);\n }else\n fill_rectangle(&h->ref_cache[list][ scan8[0] + 2*i ], 2, 4, 8, (LIST_NOT_USED&0xFF), 1);\n }\n }\n for(list=0; list<h->list_count; list++){\n for(i=0; i<2; i++){\n if(IS_DIR(mb_type, i, list)){\n int mx,my,mpx,mpy;\n pred_8x16_motion(h, i*4, list, h->ref_cache[list][ scan8[0] + 2*i ], &mx, &my);\n DECODE_CABAC_MB_MVD( h, list, 4*i)\n tprintf(h->avctx, "final mv:%d %d\\n", mx, my);\n fill_rectangle(h->mvd_cache[list][ scan8[0] + 2*i ], 2, 4, 8, pack8to16(mpx,mpy), 2);\n fill_rectangle(h->mv_cache[list][ scan8[0] + 2*i ], 2, 4, 8, pack16to32(mx,my), 4);\n }else{\n fill_rectangle(h->mvd_cache[list][ scan8[0] + 2*i ], 2, 4, 8, 0, 2);\n fill_rectangle(h-> mv_cache[list][ scan8[0] + 2*i ], 2, 4, 8, 0, 4);\n }\n }\n }\n }\n }\n if( IS_INTER( mb_type ) ) {\n h->chroma_pred_mode_table[mb_xy] = 0;\n write_back_motion( h, mb_type );\n }\n if( !IS_INTRA16x16( mb_type ) ) {\n cbp = decode_cabac_mb_cbp_luma( h );\n if(decode_chroma)\n cbp |= decode_cabac_mb_cbp_chroma( h ) << 4;\n }\n h->cbp_table[mb_xy] = h->cbp = cbp;\n if( dct8x8_allowed && (cbp&15) && !IS_INTRA( mb_type ) ) {\n mb_type |= MB_TYPE_8x8DCT * get_cabac_noinline( &h->cabac, &h->cabac_state[399 + h->neighbor_transform_size] );\n }\n if (CHROMA444(h) && IS_8x8DCT(mb_type)){\n int i;\n uint8_t *nnz_cache = h->non_zero_count_cache;\n for (i = 0; i < 2; i++){\n if (h->left_type[LEFT(i)] && !IS_8x8DCT(h->left_type[LEFT(i)])){\n nnz_cache[3+8* 1 + 2*8*i]=\n nnz_cache[3+8* 2 + 2*8*i]=\n nnz_cache[3+8* 6 + 2*8*i]=\n nnz_cache[3+8* 7 + 2*8*i]=\n nnz_cache[3+8*11 + 2*8*i]=\n nnz_cache[3+8*12 + 2*8*i]= IS_INTRA(mb_type) ? 64 : 0;\n }\n }\n if (h->top_type && !IS_8x8DCT(h->top_type)){\n uint32_t top_empty = CABAC(h) && !IS_INTRA(mb_type) ? 0 : 0x40404040;\n AV_WN32A(&nnz_cache[4+8* 0], top_empty);\n AV_WN32A(&nnz_cache[4+8* 5], top_empty);\n AV_WN32A(&nnz_cache[4+8*10], top_empty);\n }\n }\n h->cur_pic.mb_type[mb_xy] = mb_type;\n if( cbp || IS_INTRA16x16( mb_type ) ) {\n const uint8_t *scan, *scan8x8;\n const uint32_t *qmul;\n if(IS_INTERLACED(mb_type)){\n scan8x8= h->qscale ? h->field_scan8x8 : h->field_scan8x8_q0;\n scan= h->qscale ? h->field_scan : h->field_scan_q0;\n }else{\n scan8x8= h->qscale ? h->zigzag_scan8x8 : h->zigzag_scan8x8_q0;\n scan= h->qscale ? h->zigzag_scan : h->zigzag_scan_q0;\n }\n if(get_cabac_noinline( &h->cabac, &h->cabac_state[60 + (h->last_qscale_diff != 0)])){\n int val = 1;\n int ctx= 2;\n const int max_qp = 51 + 6*(h->sps.bit_depth_luma-8);\n while( get_cabac_noinline( &h->cabac, &h->cabac_state[60 + ctx] ) ) {\n ctx= 3;\n val++;\n if(val > 2*max_qp){\n av_log(h->avctx, AV_LOG_ERROR, "cabac decode of qscale diff failed at %d %d\\n", h->mb_x, h->mb_y);\n return -1;\n }\n }\n if( val&0x01 )\n val= (val + 1)>>1 ;\n else\n val= -((val + 1)>>1);\n h->last_qscale_diff = val;\n h->qscale += val;\n if(((unsigned)h->qscale) > max_qp){\n if(h->qscale<0) h->qscale+= max_qp+1;\n else h->qscale-= max_qp+1;\n }\n h->chroma_qp[0] = get_chroma_qp(h, 0, h->qscale);\n h->chroma_qp[1] = get_chroma_qp(h, 1, h->qscale);\n }else\n h->last_qscale_diff=0;\n decode_cabac_luma_residual(h, scan, scan8x8, pixel_shift, mb_type, cbp, 0);\n if (CHROMA444(h)) {\n decode_cabac_luma_residual(h, scan, scan8x8, pixel_shift, mb_type, cbp, 1);\n decode_cabac_luma_residual(h, scan, scan8x8, pixel_shift, mb_type, cbp, 2);\n } else if (CHROMA422(h)) {\n if( cbp&0x30 ){\n int c;\n for (c = 0; c < 2; c++)\n decode_cabac_residual_dc_422(h, h->mb + ((256 + 16*16*c) << pixel_shift), 3,\n CHROMA_DC_BLOCK_INDEX + c,\n chroma422_dc_scan, 8);\n }\n if( cbp&0x20 ) {\n int c, i, i8x8;\n for( c = 0; c < 2; c++ ) {\n int16_t *mb = h->mb + (16*(16 + 16*c) << pixel_shift);\n qmul = h->dequant4_coeff[c+1+(IS_INTRA( mb_type ) ? 0:3)][h->chroma_qp[c]];\n for (i8x8 = 0; i8x8 < 2; i8x8++) {\n for (i = 0; i < 4; i++) {\n const int index = 16 + 16 * c + 8*i8x8 + i;\n decode_cabac_residual_nondc(h, mb, 4, index, scan + 1, qmul, 15);\n mb += 16<<pixel_shift;\n }\n }\n }\n } else {\n fill_rectangle(&h->non_zero_count_cache[scan8[16]], 4, 4, 8, 0, 1);\n fill_rectangle(&h->non_zero_count_cache[scan8[32]], 4, 4, 8, 0, 1);\n }\n } else {\n if( cbp&0x30 ){\n int c;\n for (c = 0; c < 2; c++)\n decode_cabac_residual_dc(h, h->mb + ((256 + 16*16*c) << pixel_shift), 3, CHROMA_DC_BLOCK_INDEX+c, chroma_dc_scan, 4);\n }\n if( cbp&0x20 ) {\n int c, i;\n for( c = 0; c < 2; c++ ) {\n qmul = h->dequant4_coeff[c+1+(IS_INTRA( mb_type ) ? 0:3)][h->chroma_qp[c]];\n for( i = 0; i < 4; i++ ) {\n const int index = 16 + 16 * c + i;\n decode_cabac_residual_nondc(h, h->mb + (16*index << pixel_shift), 4, index, scan + 1, qmul, 15);\n }\n }\n } else {\n fill_rectangle(&h->non_zero_count_cache[scan8[16]], 4, 4, 8, 0, 1);\n fill_rectangle(&h->non_zero_count_cache[scan8[32]], 4, 4, 8, 0, 1);\n }\n }\n } else {\n fill_rectangle(&h->non_zero_count_cache[scan8[ 0]], 4, 4, 8, 0, 1);\n fill_rectangle(&h->non_zero_count_cache[scan8[16]], 4, 4, 8, 0, 1);\n fill_rectangle(&h->non_zero_count_cache[scan8[32]], 4, 4, 8, 0, 1);\n h->last_qscale_diff = 0;\n }\n h->cur_pic.qscale_table[mb_xy] = h->qscale;\n write_back_non_zero_count(h);\n return 0;\n}', 'void ff_h264_hl_decode_mb(H264Context *h)\n{\n const int mb_xy = h->mb_xy;\n const int mb_type = h->cur_pic.mb_type[mb_xy];\n int is_complex = CONFIG_SMALL || h->is_complex ||\n IS_INTRA_PCM(mb_type) || h->qscale == 0;\n if (CHROMA444(h)) {\n if (is_complex || h->pixel_shift)\n hl_decode_mb_444_complex(h);\n else\n hl_decode_mb_444_simple_8(h);\n } else if (is_complex) {\n hl_decode_mb_complex(h);\n } else if (h->pixel_shift) {\n hl_decode_mb_simple_16(h);\n } else\n hl_decode_mb_simple_8(h);\n}', 'static av_noinline void FUNC(hl_decode_mb_444)(H264Context *h)\n{\n const int mb_x = h->mb_x;\n const int mb_y = h->mb_y;\n const int mb_xy = h->mb_xy;\n const int mb_type = h->cur_pic.mb_type[mb_xy];\n uint8_t *dest[3];\n int linesize;\n int i, j, p;\n int *block_offset = &h->block_offset[0];\n const int transform_bypass = !SIMPLE && (h->qscale == 0 && h->sps.transform_bypass);\n const int plane_count = (SIMPLE || !CONFIG_GRAY || !(h->flags & CODEC_FLAG_GRAY)) ? 3 : 1;\n for (p = 0; p < plane_count; p++) {\n dest[p] = h->cur_pic.f.data[p] +\n ((mb_x << PIXEL_SHIFT) + mb_y * h->linesize) * 16;\n h->vdsp.prefetch(dest[p] + (h->mb_x & 3) * 4 * h->linesize + (64 << PIXEL_SHIFT),\n h->linesize, 4);\n }\n h->list_counts[mb_xy] = h->list_count;\n if (!SIMPLE && MB_FIELD(h)) {\n linesize = h->mb_linesize = h->mb_uvlinesize = h->linesize * 2;\n block_offset = &h->block_offset[48];\n if (mb_y & 1)\n for (p = 0; p < 3; p++)\n dest[p] -= h->linesize * 15;\n if (FRAME_MBAFF(h)) {\n int list;\n for (list = 0; list < h->list_count; list++) {\n if (!USES_LIST(mb_type, list))\n continue;\n if (IS_16X16(mb_type)) {\n int8_t *ref = &h->ref_cache[list][scan8[0]];\n fill_rectangle(ref, 4, 4, 8, (16 + *ref) ^ (h->mb_y & 1), 1);\n } else {\n for (i = 0; i < 16; i += 4) {\n int ref = h->ref_cache[list][scan8[i]];\n if (ref >= 0)\n fill_rectangle(&h->ref_cache[list][scan8[i]], 2, 2,\n 8, (16 + ref) ^ (h->mb_y & 1), 1);\n }\n }\n }\n }\n } else {\n linesize = h->mb_linesize = h->mb_uvlinesize = h->linesize;\n }\n if (!SIMPLE && IS_INTRA_PCM(mb_type)) {\n if (PIXEL_SHIFT) {\n const int bit_depth = h->sps.bit_depth_luma;\n GetBitContext gb;\n init_get_bits(&gb, h->intra_pcm_ptr, 768 * bit_depth);\n for (p = 0; p < plane_count; p++)\n for (i = 0; i < 16; i++) {\n uint16_t *tmp = (uint16_t *)(dest[p] + i * linesize);\n for (j = 0; j < 16; j++)\n tmp[j] = get_bits(&gb, bit_depth);\n }\n } else {\n for (p = 0; p < plane_count; p++)\n for (i = 0; i < 16; i++)\n memcpy(dest[p] + i * linesize,\n h->intra_pcm_ptr + p * 256 + i * 16, 16);\n }\n } else {\n if (IS_INTRA(mb_type)) {\n if (h->deblocking_filter)\n xchg_mb_border(h, dest[0], dest[1], dest[2], linesize,\n linesize, 1, 1, SIMPLE, PIXEL_SHIFT);\n for (p = 0; p < plane_count; p++)\n hl_decode_mb_predict_luma(h, mb_type, 1, SIMPLE,\n transform_bypass, PIXEL_SHIFT,\n block_offset, linesize, dest[p], p);\n if (h->deblocking_filter)\n xchg_mb_border(h, dest[0], dest[1], dest[2], linesize,\n linesize, 0, 1, SIMPLE, PIXEL_SHIFT);\n } else {\n FUNC(hl_motion_444)(h, dest[0], dest[1], dest[2],\n h->qpel_put, h->h264chroma.put_h264_chroma_pixels_tab,\n h->qpel_avg, h->h264chroma.avg_h264_chroma_pixels_tab,\n h->h264dsp.weight_h264_pixels_tab,\n h->h264dsp.biweight_h264_pixels_tab);\n }\n for (p = 0; p < plane_count; p++)\n hl_decode_mb_idct_luma(h, mb_type, 1, SIMPLE, transform_bypass,\n PIXEL_SHIFT, block_offset, linesize,\n dest[p], p);\n }\n}', 'static void MCFUNC(hl_motion)(H264Context *h, uint8_t *dest_y,\n uint8_t *dest_cb, uint8_t *dest_cr,\n qpel_mc_func(*qpix_put)[16],\n h264_chroma_mc_func(*chroma_put),\n qpel_mc_func(*qpix_avg)[16],\n h264_chroma_mc_func(*chroma_avg),\n h264_weight_func *weight_op,\n h264_biweight_func *weight_avg)\n{\n const int mb_xy = h->mb_xy;\n const int mb_type = h->cur_pic.mb_type[mb_xy];\n assert(IS_INTER(mb_type));\n if (HAVE_THREADS && (h->avctx->active_thread_type & FF_THREAD_FRAME))\n await_references(h);\n prefetch_motion(h, 0, PIXEL_SHIFT, CHROMA_IDC);\n if (IS_16X16(mb_type)) {\n mc_part(h, 0, 1, 16, 0, dest_y, dest_cb, dest_cr, 0, 0,\n qpix_put[0], chroma_put[0], qpix_avg[0], chroma_avg[0],\n weight_op, weight_avg,\n IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1));\n } else if (IS_16X8(mb_type)) {\n mc_part(h, 0, 0, 8, 8 << PIXEL_SHIFT, dest_y, dest_cb, dest_cr, 0, 0,\n qpix_put[1], chroma_put[0], qpix_avg[1], chroma_avg[0],\n weight_op, weight_avg,\n IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1));\n mc_part(h, 8, 0, 8, 8 << PIXEL_SHIFT, dest_y, dest_cb, dest_cr, 0, 4,\n qpix_put[1], chroma_put[0], qpix_avg[1], chroma_avg[0],\n weight_op, weight_avg,\n IS_DIR(mb_type, 1, 0), IS_DIR(mb_type, 1, 1));\n } else if (IS_8X16(mb_type)) {\n mc_part(h, 0, 0, 16, 8 * h->mb_linesize, dest_y, dest_cb, dest_cr, 0, 0,\n qpix_put[1], chroma_put[1], qpix_avg[1], chroma_avg[1],\n &weight_op[1], &weight_avg[1],\n IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1));\n mc_part(h, 4, 0, 16, 8 * h->mb_linesize, dest_y, dest_cb, dest_cr, 4, 0,\n qpix_put[1], chroma_put[1], qpix_avg[1], chroma_avg[1],\n &weight_op[1], &weight_avg[1],\n IS_DIR(mb_type, 1, 0), IS_DIR(mb_type, 1, 1));\n } else {\n int i;\n assert(IS_8X8(mb_type));\n for (i = 0; i < 4; i++) {\n const int sub_mb_type = h->sub_mb_type[i];\n const int n = 4 * i;\n int x_offset = (i & 1) << 2;\n int y_offset = (i & 2) << 1;\n if (IS_SUB_8X8(sub_mb_type)) {\n mc_part(h, n, 1, 8, 0, dest_y, dest_cb, dest_cr,\n x_offset, y_offset,\n qpix_put[1], chroma_put[1], qpix_avg[1], chroma_avg[1],\n &weight_op[1], &weight_avg[1],\n IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1));\n } else if (IS_SUB_8X4(sub_mb_type)) {\n mc_part(h, n, 0, 4, 4 << PIXEL_SHIFT, dest_y, dest_cb, dest_cr,\n x_offset, y_offset,\n qpix_put[2], chroma_put[1], qpix_avg[2], chroma_avg[1],\n &weight_op[1], &weight_avg[1],\n IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1));\n mc_part(h, n + 2, 0, 4, 4 << PIXEL_SHIFT,\n dest_y, dest_cb, dest_cr, x_offset, y_offset + 2,\n qpix_put[2], chroma_put[1], qpix_avg[2], chroma_avg[1],\n &weight_op[1], &weight_avg[1],\n IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1));\n } else if (IS_SUB_4X8(sub_mb_type)) {\n mc_part(h, n, 0, 8, 4 * h->mb_linesize,\n dest_y, dest_cb, dest_cr, x_offset, y_offset,\n qpix_put[2], chroma_put[2], qpix_avg[2], chroma_avg[2],\n &weight_op[2], &weight_avg[2],\n IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1));\n mc_part(h, n + 1, 0, 8, 4 * h->mb_linesize,\n dest_y, dest_cb, dest_cr, x_offset + 2, y_offset,\n qpix_put[2], chroma_put[2], qpix_avg[2], chroma_avg[2],\n &weight_op[2], &weight_avg[2],\n IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1));\n } else {\n int j;\n assert(IS_SUB_4X4(sub_mb_type));\n for (j = 0; j < 4; j++) {\n int sub_x_offset = x_offset + 2 * (j & 1);\n int sub_y_offset = y_offset + (j & 2);\n mc_part(h, n + j, 1, 4, 0,\n dest_y, dest_cb, dest_cr, sub_x_offset, sub_y_offset,\n qpix_put[2], chroma_put[2], qpix_avg[2], chroma_avg[2],\n &weight_op[2], &weight_avg[2],\n IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1));\n }\n }\n }\n }\n prefetch_motion(h, 1, PIXEL_SHIFT, CHROMA_IDC);\n}', 'static void await_references(H264Context *h)\n{\n const int mb_xy = h->mb_xy;\n const int mb_type = h->cur_pic.mb_type[mb_xy];\n int refs[2][48];\n int nrefs[2] = { 0 };\n int ref, list;\n memset(refs, -1, sizeof(refs));\n if (IS_16X16(mb_type)) {\n get_lowest_part_y(h, refs, 0, 16, 0,\n IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1), nrefs);\n } else if (IS_16X8(mb_type)) {\n get_lowest_part_y(h, refs, 0, 8, 0,\n IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1), nrefs);\n get_lowest_part_y(h, refs, 8, 8, 8,\n IS_DIR(mb_type, 1, 0), IS_DIR(mb_type, 1, 1), nrefs);\n } else if (IS_8X16(mb_type)) {\n get_lowest_part_y(h, refs, 0, 16, 0,\n IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1), nrefs);\n get_lowest_part_y(h, refs, 4, 16, 0,\n IS_DIR(mb_type, 1, 0), IS_DIR(mb_type, 1, 1), nrefs);\n } else {\n int i;\n assert(IS_8X8(mb_type));\n for (i = 0; i < 4; i++) {\n const int sub_mb_type = h->sub_mb_type[i];\n const int n = 4 * i;\n int y_offset = (i & 2) << 2;\n if (IS_SUB_8X8(sub_mb_type)) {\n get_lowest_part_y(h, refs, n, 8, y_offset,\n IS_DIR(sub_mb_type, 0, 0),\n IS_DIR(sub_mb_type, 0, 1),\n nrefs);\n } else if (IS_SUB_8X4(sub_mb_type)) {\n get_lowest_part_y(h, refs, n, 4, y_offset,\n IS_DIR(sub_mb_type, 0, 0),\n IS_DIR(sub_mb_type, 0, 1),\n nrefs);\n get_lowest_part_y(h, refs, n + 2, 4, y_offset + 4,\n IS_DIR(sub_mb_type, 0, 0),\n IS_DIR(sub_mb_type, 0, 1),\n nrefs);\n } else if (IS_SUB_4X8(sub_mb_type)) {\n get_lowest_part_y(h, refs, n, 8, y_offset,\n IS_DIR(sub_mb_type, 0, 0),\n IS_DIR(sub_mb_type, 0, 1),\n nrefs);\n get_lowest_part_y(h, refs, n + 1, 8, y_offset,\n IS_DIR(sub_mb_type, 0, 0),\n IS_DIR(sub_mb_type, 0, 1),\n nrefs);\n } else {\n int j;\n assert(IS_SUB_4X4(sub_mb_type));\n for (j = 0; j < 4; j++) {\n int sub_y_offset = y_offset + 2 * (j & 2);\n get_lowest_part_y(h, refs, n + j, 4, sub_y_offset,\n IS_DIR(sub_mb_type, 0, 0),\n IS_DIR(sub_mb_type, 0, 1),\n nrefs);\n }\n }\n }\n }\n for (list = h->list_count - 1; list >= 0; list--)\n for (ref = 0; ref < 48 && nrefs[list]; ref++) {\n int row = refs[list][ref];\n if (row >= 0) {\n H264Picture *ref_pic = &h->ref_list[list][ref];\n int ref_field = ref_pic->reference - 1;\n int ref_field_picture = ref_pic->field_picture;\n int pic_height = 16 * h->mb_height >> ref_field_picture;\n row <<= MB_MBAFF(h);\n nrefs[list]--;\n if (!FIELD_PICTURE(h) && ref_field_picture) {\n ff_thread_await_progress(&ref_pic->tf,\n FFMIN((row >> 1) - !(row & 1),\n pic_height - 1),\n 1);\n ff_thread_await_progress(&ref_pic->tf,\n FFMIN((row >> 1), pic_height - 1),\n 0);\n } else if (FIELD_PICTURE(h) && !ref_field_picture) {\n ff_thread_await_progress(&ref_pic->tf,\n FFMIN(row * 2 + ref_field,\n pic_height - 1),\n 0);\n } else if (FIELD_PICTURE(h)) {\n ff_thread_await_progress(&ref_pic->tf,\n FFMIN(row, pic_height - 1),\n ref_field);\n } else {\n ff_thread_await_progress(&ref_pic->tf,\n FFMIN(row, pic_height - 1),\n 0);\n }\n }\n }\n}'] |
25,959 | 0 | https://github.com/libav/libav/blob/64ba831da99c5526b21d510397b449742e92961e/libavformat/utils.c/#L2629 | void avformat_free_context(AVFormatContext *s)
{
int i;
AVStream *st;
av_opt_free(s);
if (s->iformat && s->iformat->priv_class && s->priv_data)
av_opt_free(s->priv_data);
for (i = 0; i < s->nb_streams; i++) {
st = s->streams[i];
if (st->parser) {
av_parser_close(st->parser);
}
if (st->attached_pic.data)
av_free_packet(&st->attached_pic);
av_dict_free(&st->metadata);
av_freep(&st->probe_data.buf);
av_free(st->index_entries);
av_free(st->codec->extradata);
av_free(st->codec->subtitle_header);
av_free(st->codec);
av_free(st->priv_data);
av_free(st->info);
av_free(st);
}
for (i = s->nb_programs - 1; i >= 0; i--) {
av_dict_free(&s->programs[i]->metadata);
av_freep(&s->programs[i]->stream_index);
av_freep(&s->programs[i]);
}
av_freep(&s->programs);
av_freep(&s->priv_data);
while (s->nb_chapters--) {
av_dict_free(&s->chapters[s->nb_chapters]->metadata);
av_free(s->chapters[s->nb_chapters]);
}
av_freep(&s->chapters);
av_dict_free(&s->metadata);
av_freep(&s->streams);
av_free(s);
} | ['static void avconv_cleanup(int ret)\n{\n int i, j;\n for (i = 0; i < nb_filtergraphs; i++) {\n avfilter_graph_free(&filtergraphs[i]->graph);\n for (j = 0; j < filtergraphs[i]->nb_inputs; j++) {\n av_freep(&filtergraphs[i]->inputs[j]->name);\n av_freep(&filtergraphs[i]->inputs[j]);\n }\n av_freep(&filtergraphs[i]->inputs);\n for (j = 0; j < filtergraphs[i]->nb_outputs; j++) {\n av_freep(&filtergraphs[i]->outputs[j]->name);\n av_freep(&filtergraphs[i]->outputs[j]);\n }\n av_freep(&filtergraphs[i]->outputs);\n av_freep(&filtergraphs[i]->graph_desc);\n av_freep(&filtergraphs[i]);\n }\n av_freep(&filtergraphs);\n for (i = 0; i < nb_output_files; i++) {\n AVFormatContext *s = output_files[i]->ctx;\n if (s && s->oformat && !(s->oformat->flags & AVFMT_NOFILE) && s->pb)\n avio_close(s->pb);\n avformat_free_context(s);\n av_dict_free(&output_files[i]->opts);\n av_freep(&output_files[i]);\n }\n for (i = 0; i < nb_output_streams; i++) {\n AVBitStreamFilterContext *bsfc = output_streams[i]->bitstream_filters;\n while (bsfc) {\n AVBitStreamFilterContext *next = bsfc->next;\n av_bitstream_filter_close(bsfc);\n bsfc = next;\n }\n output_streams[i]->bitstream_filters = NULL;\n av_frame_free(&output_streams[i]->filtered_frame);\n av_parser_close(output_streams[i]->parser);\n av_freep(&output_streams[i]->forced_keyframes);\n av_freep(&output_streams[i]->avfilter);\n av_freep(&output_streams[i]->logfile_prefix);\n av_freep(&output_streams[i]);\n }\n for (i = 0; i < nb_input_files; i++) {\n avformat_close_input(&input_files[i]->ctx);\n av_freep(&input_files[i]);\n }\n for (i = 0; i < nb_input_streams; i++) {\n av_frame_free(&input_streams[i]->decoded_frame);\n av_frame_free(&input_streams[i]->filter_frame);\n av_dict_free(&input_streams[i]->opts);\n av_freep(&input_streams[i]->filters);\n av_freep(&input_streams[i]->hwaccel_device);\n av_freep(&input_streams[i]);\n }\n if (vstats_file)\n fclose(vstats_file);\n av_free(vstats_filename);\n av_freep(&input_streams);\n av_freep(&input_files);\n av_freep(&output_streams);\n av_freep(&output_files);\n uninit_opts();\n avformat_network_deinit();\n if (received_sigterm) {\n av_log(NULL, AV_LOG_INFO, "Received signal %d: terminating.\\n",\n (int) received_sigterm);\n exit (255);\n }\n}', 'void av_freep(void *arg)\n{\n void **ptr = (void **)arg;\n av_free(*ptr);\n *ptr = NULL;\n}', 'void avformat_free_context(AVFormatContext *s)\n{\n int i;\n AVStream *st;\n av_opt_free(s);\n if (s->iformat && s->iformat->priv_class && s->priv_data)\n av_opt_free(s->priv_data);\n for (i = 0; i < s->nb_streams; i++) {\n st = s->streams[i];\n if (st->parser) {\n av_parser_close(st->parser);\n }\n if (st->attached_pic.data)\n av_free_packet(&st->attached_pic);\n av_dict_free(&st->metadata);\n av_freep(&st->probe_data.buf);\n av_free(st->index_entries);\n av_free(st->codec->extradata);\n av_free(st->codec->subtitle_header);\n av_free(st->codec);\n av_free(st->priv_data);\n av_free(st->info);\n av_free(st);\n }\n for (i = s->nb_programs - 1; i >= 0; i--) {\n av_dict_free(&s->programs[i]->metadata);\n av_freep(&s->programs[i]->stream_index);\n av_freep(&s->programs[i]);\n }\n av_freep(&s->programs);\n av_freep(&s->priv_data);\n while (s->nb_chapters--) {\n av_dict_free(&s->chapters[s->nb_chapters]->metadata);\n av_free(s->chapters[s->nb_chapters]);\n }\n av_freep(&s->chapters);\n av_dict_free(&s->metadata);\n av_freep(&s->streams);\n av_free(s);\n}'] |
25,960 | 0 | https://github.com/libav/libav/blob/47399ccdfd93d337c96c76fbf591f0e3637131ef/libavcodec/bitstream.h/#L245 | static inline void bitstream_skip(BitstreamContext *bc, unsigned n)
{
if (n < bc->bits_left)
skip_remaining(bc, n);
else {
n -= bc->bits_left;
bc->bits = 0;
bc->bits_left = 0;
if (n >= 64) {
unsigned skip = n / 8;
n -= skip * 8;
bc->ptr += skip;
}
refill_64(bc);
if (n)
skip_remaining(bc, n);
}
} | ['static inline int extend_code(BitstreamContext *bc, int val, int range, int bits)\n{\n if (val == 0) {\n val = -range - get_ue_golomb(bc);\n } else if (val == range * 2) {\n val = range + get_ue_golomb(bc);\n } else {\n val -= range;\n }\n if (bits)\n val = (val << bits) | bitstream_read(bc, bits);\n return val;\n}', 'static inline int get_ue_golomb(BitstreamContext *bc)\n{\n unsigned int buf;\n buf = bitstream_peek(bc, 32);\n if (buf >= (1 << 27)) {\n buf >>= 32 - 9;\n bitstream_skip(bc, ff_golomb_vlc_len[buf]);\n return ff_ue_golomb_vlc_code[buf];\n } else {\n int log = 2 * av_log2(buf) - 31;\n buf >>= log;\n buf--;\n bitstream_skip(bc, 32 - log);\n return buf;\n }\n}', 'static inline void bitstream_skip(BitstreamContext *bc, unsigned n)\n{\n if (n < bc->bits_left)\n skip_remaining(bc, n);\n else {\n n -= bc->bits_left;\n bc->bits = 0;\n bc->bits_left = 0;\n if (n >= 64) {\n unsigned skip = n / 8;\n n -= skip * 8;\n bc->ptr += skip;\n }\n refill_64(bc);\n if (n)\n skip_remaining(bc, n);\n }\n}'] |
25,961 | 0 | https://github.com/libav/libav/blob/7fa70598e83cca650717d02ac96bcf55e9f97c19/libavcodec/mpc7.c/#L178 | static int mpc7_decode_frame(AVCodecContext * avctx,
void *data, int *data_size,
const uint8_t * buf, int buf_size)
{
MPCContext *c = avctx->priv_data;
GetBitContext gb;
uint8_t *bits;
int i, ch, t;
int mb = -1;
Band *bands = c->bands;
int off;
int bits_used, bits_avail;
memset(bands, 0, sizeof(bands));
if(buf_size <= 4){
av_log(avctx, AV_LOG_ERROR, "Too small buffer passed (%i bytes)\n", buf_size);
}
bits = av_malloc(((buf_size - 1) & ~3) + FF_INPUT_BUFFER_PADDING_SIZE);
c->dsp.bswap_buf((uint32_t*)bits, (const uint32_t*)(buf + 4), (buf_size - 4) >> 2);
init_get_bits(&gb, bits, (buf_size - 4)* 8);
skip_bits(&gb, buf[0]);
for(i = 0; i <= c->maxbands; i++){
for(ch = 0; ch < 2; ch++){
if(i) t = get_vlc2(&gb, hdr_vlc.table, MPC7_HDR_BITS, 1) - 5;
if(!i || (t == 4)) bands[i].res[ch] = get_bits(&gb, 4);
else bands[i].res[ch] = bands[i-1].res[ch] + t;
}
if(bands[i].res[0] || bands[i].res[1]){
mb = i;
if(c->MSS) bands[i].msf = get_bits1(&gb);
}
}
for(i = 0; i <= mb; i++)
for(ch = 0; ch < 2; ch++)
if(bands[i].res[ch]) bands[i].scfi[ch] = get_vlc2(&gb, scfi_vlc.table, MPC7_SCFI_BITS, 1);
for(i = 0; i <= mb; i++){
for(ch = 0; ch < 2; ch++){
if(bands[i].res[ch]){
bands[i].scf_idx[ch][2] = c->oldDSCF[ch][i];
t = get_vlc2(&gb, dscf_vlc.table, MPC7_DSCF_BITS, 1) - 7;
bands[i].scf_idx[ch][0] = (t == 8) ? get_bits(&gb, 6) : (bands[i].scf_idx[ch][2] + t);
switch(bands[i].scfi[ch]){
case 0:
t = get_vlc2(&gb, dscf_vlc.table, MPC7_DSCF_BITS, 1) - 7;
bands[i].scf_idx[ch][1] = (t == 8) ? get_bits(&gb, 6) : (bands[i].scf_idx[ch][0] + t);
t = get_vlc2(&gb, dscf_vlc.table, MPC7_DSCF_BITS, 1) - 7;
bands[i].scf_idx[ch][2] = (t == 8) ? get_bits(&gb, 6) : (bands[i].scf_idx[ch][1] + t);
break;
case 1:
t = get_vlc2(&gb, dscf_vlc.table, MPC7_DSCF_BITS, 1) - 7;
bands[i].scf_idx[ch][1] = (t == 8) ? get_bits(&gb, 6) : (bands[i].scf_idx[ch][0] + t);
bands[i].scf_idx[ch][2] = bands[i].scf_idx[ch][1];
break;
case 2:
bands[i].scf_idx[ch][1] = bands[i].scf_idx[ch][0];
t = get_vlc2(&gb, dscf_vlc.table, MPC7_DSCF_BITS, 1) - 7;
bands[i].scf_idx[ch][2] = (t == 8) ? get_bits(&gb, 6) : (bands[i].scf_idx[ch][1] + t);
break;
case 3:
bands[i].scf_idx[ch][2] = bands[i].scf_idx[ch][1] = bands[i].scf_idx[ch][0];
break;
}
c->oldDSCF[ch][i] = bands[i].scf_idx[ch][2];
}
}
}
memset(c->Q, 0, sizeof(c->Q));
off = 0;
for(i = 0; i < BANDS; i++, off += SAMPLES_PER_BAND)
for(ch = 0; ch < 2; ch++)
idx_to_quant(c, &gb, bands[i].res[ch], c->Q[ch] + off);
ff_mpc_dequantize_and_synth(c, mb, data);
av_free(bits);
bits_used = get_bits_count(&gb);
bits_avail = (buf_size - 4) * 8;
if(!buf[1] && ((bits_avail < bits_used) || (bits_used + 32 <= bits_avail))){
av_log(NULL,0, "Error decoding frame: used %i of %i bits\n", bits_used, bits_avail);
return -1;
}
if(c->frames_to_skip){
c->frames_to_skip--;
*data_size = 0;
return buf_size;
}
*data_size = (buf[1] ? c->lastframelen : MPC_FRAME_SIZE) * 4;
return buf_size;
} | ['static int mpc7_decode_frame(AVCodecContext * avctx,\n void *data, int *data_size,\n const uint8_t * buf, int buf_size)\n{\n MPCContext *c = avctx->priv_data;\n GetBitContext gb;\n uint8_t *bits;\n int i, ch, t;\n int mb = -1;\n Band *bands = c->bands;\n int off;\n int bits_used, bits_avail;\n memset(bands, 0, sizeof(bands));\n if(buf_size <= 4){\n av_log(avctx, AV_LOG_ERROR, "Too small buffer passed (%i bytes)\\n", buf_size);\n }\n bits = av_malloc(((buf_size - 1) & ~3) + FF_INPUT_BUFFER_PADDING_SIZE);\n c->dsp.bswap_buf((uint32_t*)bits, (const uint32_t*)(buf + 4), (buf_size - 4) >> 2);\n init_get_bits(&gb, bits, (buf_size - 4)* 8);\n skip_bits(&gb, buf[0]);\n for(i = 0; i <= c->maxbands; i++){\n for(ch = 0; ch < 2; ch++){\n if(i) t = get_vlc2(&gb, hdr_vlc.table, MPC7_HDR_BITS, 1) - 5;\n if(!i || (t == 4)) bands[i].res[ch] = get_bits(&gb, 4);\n else bands[i].res[ch] = bands[i-1].res[ch] + t;\n }\n if(bands[i].res[0] || bands[i].res[1]){\n mb = i;\n if(c->MSS) bands[i].msf = get_bits1(&gb);\n }\n }\n for(i = 0; i <= mb; i++)\n for(ch = 0; ch < 2; ch++)\n if(bands[i].res[ch]) bands[i].scfi[ch] = get_vlc2(&gb, scfi_vlc.table, MPC7_SCFI_BITS, 1);\n for(i = 0; i <= mb; i++){\n for(ch = 0; ch < 2; ch++){\n if(bands[i].res[ch]){\n bands[i].scf_idx[ch][2] = c->oldDSCF[ch][i];\n t = get_vlc2(&gb, dscf_vlc.table, MPC7_DSCF_BITS, 1) - 7;\n bands[i].scf_idx[ch][0] = (t == 8) ? get_bits(&gb, 6) : (bands[i].scf_idx[ch][2] + t);\n switch(bands[i].scfi[ch]){\n case 0:\n t = get_vlc2(&gb, dscf_vlc.table, MPC7_DSCF_BITS, 1) - 7;\n bands[i].scf_idx[ch][1] = (t == 8) ? get_bits(&gb, 6) : (bands[i].scf_idx[ch][0] + t);\n t = get_vlc2(&gb, dscf_vlc.table, MPC7_DSCF_BITS, 1) - 7;\n bands[i].scf_idx[ch][2] = (t == 8) ? get_bits(&gb, 6) : (bands[i].scf_idx[ch][1] + t);\n break;\n case 1:\n t = get_vlc2(&gb, dscf_vlc.table, MPC7_DSCF_BITS, 1) - 7;\n bands[i].scf_idx[ch][1] = (t == 8) ? get_bits(&gb, 6) : (bands[i].scf_idx[ch][0] + t);\n bands[i].scf_idx[ch][2] = bands[i].scf_idx[ch][1];\n break;\n case 2:\n bands[i].scf_idx[ch][1] = bands[i].scf_idx[ch][0];\n t = get_vlc2(&gb, dscf_vlc.table, MPC7_DSCF_BITS, 1) - 7;\n bands[i].scf_idx[ch][2] = (t == 8) ? get_bits(&gb, 6) : (bands[i].scf_idx[ch][1] + t);\n break;\n case 3:\n bands[i].scf_idx[ch][2] = bands[i].scf_idx[ch][1] = bands[i].scf_idx[ch][0];\n break;\n }\n c->oldDSCF[ch][i] = bands[i].scf_idx[ch][2];\n }\n }\n }\n memset(c->Q, 0, sizeof(c->Q));\n off = 0;\n for(i = 0; i < BANDS; i++, off += SAMPLES_PER_BAND)\n for(ch = 0; ch < 2; ch++)\n idx_to_quant(c, &gb, bands[i].res[ch], c->Q[ch] + off);\n ff_mpc_dequantize_and_synth(c, mb, data);\n av_free(bits);\n bits_used = get_bits_count(&gb);\n bits_avail = (buf_size - 4) * 8;\n if(!buf[1] && ((bits_avail < bits_used) || (bits_used + 32 <= bits_avail))){\n av_log(NULL,0, "Error decoding frame: used %i of %i bits\\n", bits_used, bits_avail);\n return -1;\n }\n if(c->frames_to_skip){\n c->frames_to_skip--;\n *data_size = 0;\n return buf_size;\n }\n *data_size = (buf[1] ? c->lastframelen : MPC_FRAME_SIZE) * 4;\n return buf_size;\n}', 'void *av_malloc(unsigned int size)\n{\n void *ptr = NULL;\n#if CONFIG_MEMALIGN_HACK\n long diff;\n#endif\n if(size > (INT_MAX-16) )\n return NULL;\n#if CONFIG_MEMALIGN_HACK\n ptr = malloc(size+16);\n if(!ptr)\n return ptr;\n diff= ((-(long)ptr - 1)&15) + 1;\n ptr = (char*)ptr + diff;\n ((char*)ptr)[-1]= diff;\n#elif HAVE_POSIX_MEMALIGN\n posix_memalign(&ptr,16,size);\n#elif HAVE_MEMALIGN\n ptr = memalign(16,size);\n#else\n ptr = malloc(size);\n#endif\n return ptr;\n}', 'static inline void init_get_bits(GetBitContext *s,\n const uint8_t *buffer, int bit_size)\n{\n int buffer_size= (bit_size+7)>>3;\n if(buffer_size < 0 || bit_size < 0) {\n buffer_size = bit_size = 0;\n buffer = NULL;\n }\n s->buffer= buffer;\n s->size_in_bits= bit_size;\n s->buffer_end= buffer + buffer_size;\n#ifdef ALT_BITSTREAM_READER\n s->index=0;\n#elif defined LIBMPEG2_BITSTREAM_READER\n s->buffer_ptr = (uint8_t*)((intptr_t)buffer&(~1));\n s->bit_count = 16 + 8*((intptr_t)buffer&1);\n skip_bits_long(s, 0);\n#elif defined A32_BITSTREAM_READER\n s->buffer_ptr = (uint32_t*)((intptr_t)buffer&(~3));\n s->bit_count = 32 + 8*((intptr_t)buffer&3);\n skip_bits_long(s, 0);\n#endif\n}', 'static inline void skip_bits(GetBitContext *s, int n){\n OPEN_READER(re, s)\n UPDATE_CACHE(re, s)\n LAST_SKIP_BITS(re, s, n)\n CLOSE_READER(re, s)\n}'] |
25,962 | 0 | https://github.com/openssl/openssl/blob/6bc62a620e715f7580651ca932eab052aa527886/crypto/bn/bn_ctx.c/#L268 | static unsigned int BN_STACK_pop(BN_STACK *st)
{
return st->indexes[--(st->depth)];
} | ['int BN_mod_exp_recp(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,\n const BIGNUM *m, BN_CTX *ctx)\n{\n int i, j, bits, ret = 0, wstart, wend, window, wvalue;\n int start = 1;\n BIGNUM *aa;\n BIGNUM *val[TABLE_SIZE];\n BN_RECP_CTX recp;\n if (BN_get_flags(p, BN_FLG_CONSTTIME) != 0\n || BN_get_flags(a, BN_FLG_CONSTTIME) != 0\n || BN_get_flags(m, BN_FLG_CONSTTIME) != 0) {\n BNerr(BN_F_BN_MOD_EXP_RECP, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);\n return 0;\n }\n bits = BN_num_bits(p);\n if (bits == 0) {\n if (BN_abs_is_word(m, 1)) {\n ret = 1;\n BN_zero(r);\n } else {\n ret = BN_one(r);\n }\n return ret;\n }\n BN_CTX_start(ctx);\n aa = BN_CTX_get(ctx);\n val[0] = BN_CTX_get(ctx);\n if (val[0] == NULL)\n goto err;\n BN_RECP_CTX_init(&recp);\n if (m->neg) {\n if (!BN_copy(aa, m))\n goto err;\n aa->neg = 0;\n if (BN_RECP_CTX_set(&recp, aa, ctx) <= 0)\n goto err;\n } else {\n if (BN_RECP_CTX_set(&recp, m, ctx) <= 0)\n goto err;\n }\n if (!BN_nnmod(val[0], a, m, ctx))\n goto err;\n if (BN_is_zero(val[0])) {\n BN_zero(r);\n ret = 1;\n goto err;\n }\n window = BN_window_bits_for_exponent_size(bits);\n if (window > 1) {\n if (!BN_mod_mul_reciprocal(aa, val[0], val[0], &recp, ctx))\n goto err;\n j = 1 << (window - 1);\n for (i = 1; i < j; i++) {\n if (((val[i] = BN_CTX_get(ctx)) == NULL) ||\n !BN_mod_mul_reciprocal(val[i], val[i - 1], aa, &recp, ctx))\n goto err;\n }\n }\n start = 1;\n wvalue = 0;\n wstart = bits - 1;\n wend = 0;\n if (!BN_one(r))\n goto err;\n for (;;) {\n if (BN_is_bit_set(p, wstart) == 0) {\n if (!start)\n if (!BN_mod_mul_reciprocal(r, r, r, &recp, ctx))\n goto err;\n if (wstart == 0)\n break;\n wstart--;\n continue;\n }\n j = wstart;\n wvalue = 1;\n wend = 0;\n for (i = 1; i < window; i++) {\n if (wstart - i < 0)\n break;\n if (BN_is_bit_set(p, wstart - i)) {\n wvalue <<= (i - wend);\n wvalue |= 1;\n wend = i;\n }\n }\n j = wend + 1;\n if (!start)\n for (i = 0; i < j; i++) {\n if (!BN_mod_mul_reciprocal(r, r, r, &recp, ctx))\n goto err;\n }\n if (!BN_mod_mul_reciprocal(r, r, val[wvalue >> 1], &recp, ctx))\n goto err;\n wstart -= wend + 1;\n wvalue = 0;\n start = 0;\n if (wstart < 0)\n break;\n }\n ret = 1;\n err:\n BN_CTX_end(ctx);\n BN_RECP_CTX_free(&recp);\n bn_check_top(r);\n return ret;\n}', 'void BN_CTX_start(BN_CTX *ctx)\n{\n CTXDBG("ENTER BN_CTX_start()", ctx);\n if (ctx->err_stack || ctx->too_many)\n ctx->err_stack++;\n else if (!BN_STACK_push(&ctx->stack, ctx->used)) {\n BNerr(BN_F_BN_CTX_START, BN_R_TOO_MANY_TEMPORARY_VARIABLES);\n ctx->err_stack++;\n }\n CTXDBG("LEAVE BN_CTX_start()", ctx);\n}', 'int BN_nnmod(BIGNUM *r, const BIGNUM *m, const BIGNUM *d, BN_CTX *ctx)\n{\n if (!(BN_mod(r, m, d, ctx)))\n return 0;\n if (!r->neg)\n return 1;\n return (d->neg ? BN_sub : BN_add) (r, r, d);\n}', 'int BN_div(BIGNUM *dv, BIGNUM *rm, const BIGNUM *num, const BIGNUM *divisor,\n BN_CTX *ctx)\n{\n int ret;\n if (BN_is_zero(divisor)) {\n BNerr(BN_F_BN_DIV, BN_R_DIV_BY_ZERO);\n return 0;\n }\n if (divisor->d[divisor->top - 1] == 0) {\n BNerr(BN_F_BN_DIV, BN_R_NOT_INITIALIZED);\n return 0;\n }\n ret = bn_div_fixed_top(dv, rm, num, divisor, ctx);\n if (ret) {\n if (dv != NULL)\n bn_correct_top(dv);\n if (rm != NULL)\n bn_correct_top(rm);\n }\n return ret;\n}', 'int BN_mod_mul_reciprocal(BIGNUM *r, const BIGNUM *x, const BIGNUM *y,\n BN_RECP_CTX *recp, BN_CTX *ctx)\n{\n int ret = 0;\n BIGNUM *a;\n const BIGNUM *ca;\n BN_CTX_start(ctx);\n if ((a = BN_CTX_get(ctx)) == NULL)\n goto err;\n if (y != NULL) {\n if (x == y) {\n if (!BN_sqr(a, x, ctx))\n goto err;\n } else {\n if (!BN_mul(a, x, y, ctx))\n goto err;\n }\n ca = a;\n } else\n ca = x;\n ret = BN_div_recp(NULL, r, ca, recp, ctx);\n err:\n BN_CTX_end(ctx);\n bn_check_top(r);\n return ret;\n}', 'int BN_sqr(BIGNUM *r, const BIGNUM *a, BN_CTX *ctx)\n{\n int ret = bn_sqr_fixed_top(r, a, ctx);\n bn_correct_top(r);\n bn_check_top(r);\n return ret;\n}', 'int bn_sqr_fixed_top(BIGNUM *r, const BIGNUM *a, BN_CTX *ctx)\n{\n int max, al;\n int ret = 0;\n BIGNUM *tmp, *rr;\n bn_check_top(a);\n al = a->top;\n if (al <= 0) {\n r->top = 0;\n r->neg = 0;\n return 1;\n }\n BN_CTX_start(ctx);\n rr = (a != r) ? r : BN_CTX_get(ctx);\n tmp = BN_CTX_get(ctx);\n if (rr == NULL || tmp == NULL)\n goto err;\n max = 2 * al;\n if (bn_wexpand(rr, max) == NULL)\n goto err;\n if (al == 4) {\n#ifndef BN_SQR_COMBA\n BN_ULONG t[8];\n bn_sqr_normal(rr->d, a->d, 4, t);\n#else\n bn_sqr_comba4(rr->d, a->d);\n#endif\n } else if (al == 8) {\n#ifndef BN_SQR_COMBA\n BN_ULONG t[16];\n bn_sqr_normal(rr->d, a->d, 8, t);\n#else\n bn_sqr_comba8(rr->d, a->d);\n#endif\n } else {\n#if defined(BN_RECURSION)\n if (al < BN_SQR_RECURSIVE_SIZE_NORMAL) {\n BN_ULONG t[BN_SQR_RECURSIVE_SIZE_NORMAL * 2];\n bn_sqr_normal(rr->d, a->d, al, t);\n } else {\n int j, k;\n j = BN_num_bits_word((BN_ULONG)al);\n j = 1 << (j - 1);\n k = j + j;\n if (al == j) {\n if (bn_wexpand(tmp, k * 2) == NULL)\n goto err;\n bn_sqr_recursive(rr->d, a->d, al, tmp->d);\n } else {\n if (bn_wexpand(tmp, max) == NULL)\n goto err;\n bn_sqr_normal(rr->d, a->d, al, tmp->d);\n }\n }\n#else\n if (bn_wexpand(tmp, max) == NULL)\n goto err;\n bn_sqr_normal(rr->d, a->d, al, tmp->d);\n#endif\n }\n rr->neg = 0;\n rr->top = max;\n rr->flags |= BN_FLG_FIXED_TOP;\n if (r != rr && BN_copy(r, rr) == NULL)\n goto err;\n ret = 1;\n err:\n bn_check_top(rr);\n bn_check_top(tmp);\n BN_CTX_end(ctx);\n return ret;\n}', 'void BN_CTX_end(BN_CTX *ctx)\n{\n CTXDBG("ENTER BN_CTX_end()", ctx);\n if (ctx->err_stack)\n ctx->err_stack--;\n else {\n unsigned int fp = BN_STACK_pop(&ctx->stack);\n if (fp < ctx->used)\n BN_POOL_release(&ctx->pool, ctx->used - fp);\n ctx->used = fp;\n ctx->too_many = 0;\n }\n CTXDBG("LEAVE BN_CTX_end()", ctx);\n}', 'static unsigned int BN_STACK_pop(BN_STACK *st)\n{\n return st->indexes[--(st->depth)];\n}'] |
25,963 | 0 | https://github.com/openssl/openssl/blob/3dd303129ff478349aaf9ddd12ee711c235f8a36/apps/speed.c/#L2657 | static int do_multi(int multi)
{
int n;
int fd[2];
int *fds;
static char sep[]=":";
fds=malloc(multi*sizeof *fds);
for(n=0 ; n < multi ; ++n)
{
pipe(fd);
fflush(stdout);
fflush(stderr);
if(fork())
{
close(fd[1]);
fds[n]=fd[0];
}
else
{
close(fd[0]);
close(1);
dup(fd[1]);
close(fd[1]);
mr=1;
usertime=0;
free(fds);
return 0;
}
printf("Forked child %d\n",n);
}
for(n=0 ; n < multi ; ++n)
{
FILE *f;
char buf[1024];
char *p;
f=fdopen(fds[n],"r");
while(fgets(buf,sizeof buf,f))
{
p=strchr(buf,'\n');
if(p)
*p='\0';
if(buf[0] != '+')
{
fprintf(stderr,"Don't understand line '%s' from child %d\n",
buf,n);
continue;
}
printf("Got: %s from %d\n",buf,n);
if(!strncmp(buf,"+F:",3))
{
int alg;
int j;
p=buf+3;
alg=atoi(sstrsep(&p,sep));
sstrsep(&p,sep);
for(j=0 ; j < SIZE_NUM ; ++j)
results[alg][j]+=atof(sstrsep(&p,sep));
}
else if(!strncmp(buf,"+F2:",4))
{
int k;
double d;
p=buf+4;
k=atoi(sstrsep(&p,sep));
sstrsep(&p,sep);
d=atof(sstrsep(&p,sep));
if(n)
rsa_results[k][0]=1/(1/rsa_results[k][0]+1/d);
else
rsa_results[k][0]=d;
d=atof(sstrsep(&p,sep));
if(n)
rsa_results[k][1]=1/(1/rsa_results[k][1]+1/d);
else
rsa_results[k][1]=d;
}
else if(!strncmp(buf,"+F2:",4))
{
int k;
double d;
p=buf+4;
k=atoi(sstrsep(&p,sep));
sstrsep(&p,sep);
d=atof(sstrsep(&p,sep));
if(n)
rsa_results[k][0]=1/(1/rsa_results[k][0]+1/d);
else
rsa_results[k][0]=d;
d=atof(sstrsep(&p,sep));
if(n)
rsa_results[k][1]=1/(1/rsa_results[k][1]+1/d);
else
rsa_results[k][1]=d;
}
else if(!strncmp(buf,"+F3:",4))
{
int k;
double d;
p=buf+4;
k=atoi(sstrsep(&p,sep));
sstrsep(&p,sep);
d=atof(sstrsep(&p,sep));
if(n)
dsa_results[k][0]=1/(1/dsa_results[k][0]+1/d);
else
dsa_results[k][0]=d;
d=atof(sstrsep(&p,sep));
if(n)
dsa_results[k][1]=1/(1/dsa_results[k][1]+1/d);
else
dsa_results[k][1]=d;
}
#ifndef OPENSSL_NO_ECDSA
else if(!strncmp(buf,"+F4:",4))
{
int k;
double d;
p=buf+4;
k=atoi(sstrsep(&p,sep));
sstrsep(&p,sep);
d=atof(sstrsep(&p,sep));
if(n)
ecdsa_results[k][0]=1/(1/ecdsa_results[k][0]+1/d);
else
ecdsa_results[k][0]=d;
d=atof(sstrsep(&p,sep));
if(n)
ecdsa_results[k][1]=1/(1/ecdsa_results[k][1]+1/d);
else
ecdsa_results[k][1]=d;
}
#endif
#ifndef OPENSSL_NO_ECDH
else if(!strncmp(buf,"+F5:",4))
{
int k;
double d;
p=buf+4;
k=atoi(sstrsep(&p,sep));
sstrsep(&p,sep);
d=atof(sstrsep(&p,sep));
if(n)
ecdh_results[k][0]=1/(1/ecdh_results[k][0]+1/d);
else
ecdh_results[k][0]=d;
}
#endif
else if(!strncmp(buf,"+H:",3))
{
}
else
fprintf(stderr,"Unknown type '%s' from child %d\n",buf,n);
}
fclose(f);
}
free(fds);
return 1;
} | ['static int do_multi(int multi)\n\t{\n\tint n;\n\tint fd[2];\n\tint *fds;\n\tstatic char sep[]=":";\n\tfds=malloc(multi*sizeof *fds);\n\tfor(n=0 ; n < multi ; ++n)\n\t\t{\n\t\tpipe(fd);\n\t\tfflush(stdout);\n\t\tfflush(stderr);\n\t\tif(fork())\n\t\t\t{\n\t\t\tclose(fd[1]);\n\t\t\tfds[n]=fd[0];\n\t\t\t}\n\t\telse\n\t\t\t{\n\t\t\tclose(fd[0]);\n\t\t\tclose(1);\n\t\t\tdup(fd[1]);\n\t\t\tclose(fd[1]);\n\t\t\tmr=1;\n\t\t\tusertime=0;\n\t\t\tfree(fds);\n\t\t\treturn 0;\n\t\t\t}\n\t\tprintf("Forked child %d\\n",n);\n\t\t}\n\tfor(n=0 ; n < multi ; ++n)\n\t\t{\n\t\tFILE *f;\n\t\tchar buf[1024];\n\t\tchar *p;\n\t\tf=fdopen(fds[n],"r");\n\t\twhile(fgets(buf,sizeof buf,f))\n\t\t\t{\n\t\t\tp=strchr(buf,\'\\n\');\n\t\t\tif(p)\n\t\t\t\t*p=\'\\0\';\n\t\t\tif(buf[0] != \'+\')\n\t\t\t\t{\n\t\t\t\tfprintf(stderr,"Don\'t understand line \'%s\' from child %d\\n",\n\t\t\t\t\t\tbuf,n);\n\t\t\t\tcontinue;\n\t\t\t\t}\n\t\t\tprintf("Got: %s from %d\\n",buf,n);\n\t\t\tif(!strncmp(buf,"+F:",3))\n\t\t\t\t{\n\t\t\t\tint alg;\n\t\t\t\tint j;\n\t\t\t\tp=buf+3;\n\t\t\t\talg=atoi(sstrsep(&p,sep));\n\t\t\t\tsstrsep(&p,sep);\n\t\t\t\tfor(j=0 ; j < SIZE_NUM ; ++j)\n\t\t\t\t\tresults[alg][j]+=atof(sstrsep(&p,sep));\n\t\t\t\t}\n\t\t\telse if(!strncmp(buf,"+F2:",4))\n\t\t\t\t{\n\t\t\t\tint k;\n\t\t\t\tdouble d;\n\t\t\t\tp=buf+4;\n\t\t\t\tk=atoi(sstrsep(&p,sep));\n\t\t\t\tsstrsep(&p,sep);\n\t\t\t\td=atof(sstrsep(&p,sep));\n\t\t\t\tif(n)\n\t\t\t\t\trsa_results[k][0]=1/(1/rsa_results[k][0]+1/d);\n\t\t\t\telse\n\t\t\t\t\trsa_results[k][0]=d;\n\t\t\t\td=atof(sstrsep(&p,sep));\n\t\t\t\tif(n)\n\t\t\t\t\trsa_results[k][1]=1/(1/rsa_results[k][1]+1/d);\n\t\t\t\telse\n\t\t\t\t\trsa_results[k][1]=d;\n\t\t\t\t}\n\t\t\telse if(!strncmp(buf,"+F2:",4))\n\t\t\t\t{\n\t\t\t\tint k;\n\t\t\t\tdouble d;\n\t\t\t\tp=buf+4;\n\t\t\t\tk=atoi(sstrsep(&p,sep));\n\t\t\t\tsstrsep(&p,sep);\n\t\t\t\td=atof(sstrsep(&p,sep));\n\t\t\t\tif(n)\n\t\t\t\t\trsa_results[k][0]=1/(1/rsa_results[k][0]+1/d);\n\t\t\t\telse\n\t\t\t\t\trsa_results[k][0]=d;\n\t\t\t\td=atof(sstrsep(&p,sep));\n\t\t\t\tif(n)\n\t\t\t\t\trsa_results[k][1]=1/(1/rsa_results[k][1]+1/d);\n\t\t\t\telse\n\t\t\t\t\trsa_results[k][1]=d;\n\t\t\t\t}\n\t\t\telse if(!strncmp(buf,"+F3:",4))\n\t\t\t\t{\n\t\t\t\tint k;\n\t\t\t\tdouble d;\n\t\t\t\tp=buf+4;\n\t\t\t\tk=atoi(sstrsep(&p,sep));\n\t\t\t\tsstrsep(&p,sep);\n\t\t\t\td=atof(sstrsep(&p,sep));\n\t\t\t\tif(n)\n\t\t\t\t\tdsa_results[k][0]=1/(1/dsa_results[k][0]+1/d);\n\t\t\t\telse\n\t\t\t\t\tdsa_results[k][0]=d;\n\t\t\t\td=atof(sstrsep(&p,sep));\n\t\t\t\tif(n)\n\t\t\t\t\tdsa_results[k][1]=1/(1/dsa_results[k][1]+1/d);\n\t\t\t\telse\n\t\t\t\t\tdsa_results[k][1]=d;\n\t\t\t\t}\n#ifndef OPENSSL_NO_ECDSA\n\t\t\telse if(!strncmp(buf,"+F4:",4))\n\t\t\t\t{\n\t\t\t\tint k;\n\t\t\t\tdouble d;\n\t\t\t\tp=buf+4;\n\t\t\t\tk=atoi(sstrsep(&p,sep));\n\t\t\t\tsstrsep(&p,sep);\n\t\t\t\td=atof(sstrsep(&p,sep));\n\t\t\t\tif(n)\n\t\t\t\t\tecdsa_results[k][0]=1/(1/ecdsa_results[k][0]+1/d);\n\t\t\t\telse\n\t\t\t\t\tecdsa_results[k][0]=d;\n\t\t\t\td=atof(sstrsep(&p,sep));\n\t\t\t\tif(n)\n\t\t\t\t\tecdsa_results[k][1]=1/(1/ecdsa_results[k][1]+1/d);\n\t\t\t\telse\n\t\t\t\t\tecdsa_results[k][1]=d;\n\t\t\t\t}\n#endif\n#ifndef OPENSSL_NO_ECDH\n\t\t\telse if(!strncmp(buf,"+F5:",4))\n\t\t\t\t{\n\t\t\t\tint k;\n\t\t\t\tdouble d;\n\t\t\t\tp=buf+4;\n\t\t\t\tk=atoi(sstrsep(&p,sep));\n\t\t\t\tsstrsep(&p,sep);\n\t\t\t\td=atof(sstrsep(&p,sep));\n\t\t\t\tif(n)\n\t\t\t\t\tecdh_results[k][0]=1/(1/ecdh_results[k][0]+1/d);\n\t\t\t\telse\n\t\t\t\t\tecdh_results[k][0]=d;\n\t\t\t\t}\n#endif\n\t\t\telse if(!strncmp(buf,"+H:",3))\n\t\t\t\t{\n\t\t\t\t}\n\t\t\telse\n\t\t\t\tfprintf(stderr,"Unknown type \'%s\' from child %d\\n",buf,n);\n\t\t\t}\n\t\tfclose(f);\n\t\t}\n\tfree(fds);\n\treturn 1;\n\t}'] |
25,964 | 0 | https://github.com/openssl/openssl/blob/4882171df5ba7cb8735b685478a008df25eef47a/crypto/bn/bn_print.c/#L197 | int BN_hex2bn(BIGNUM **bn, const char *a)
{
BIGNUM *ret=NULL;
BN_ULONG l=0;
int neg=0,h,m,i,j,k,c;
int num;
if ((a == NULL) || (*a == '\0')) return(0);
if (*a == '-') { neg=1; a++; }
for (i=0; isxdigit((unsigned char) a[i]); i++)
;
num=i+neg;
if (bn == NULL) return(num);
if (*bn == NULL)
{
if ((ret=BN_new()) == NULL) return(0);
}
else
{
ret= *bn;
BN_zero(ret);
}
if (bn_expand(ret,i*4) == NULL) goto err;
j=i;
m=0;
h=0;
while (j > 0)
{
m=((BN_BYTES*2) <= j)?(BN_BYTES*2):j;
l=0;
for (;;)
{
c=a[j-m];
if ((c >= '0') && (c <= '9')) k=c-'0';
else if ((c >= 'a') && (c <= 'f')) k=c-'a'+10;
else if ((c >= 'A') && (c <= 'F')) k=c-'A'+10;
else k=0;
l=(l<<4)|k;
if (--m <= 0)
{
ret->d[h++]=l;
break;
}
}
j-=(BN_BYTES*2);
}
ret->top=h;
bn_fix_top(ret);
ret->neg=neg;
*bn=ret;
return(num);
err:
if (*bn == NULL) BN_free(ret);
return(0);
} | ['EC_GROUP *EC_GROUP_new_by_name(int name)\n\t{\n\tEC_GROUP *ret = NULL;\n\tswitch (name)\n\t\t{\n\tcase EC_GROUP_NO_CURVE:\n\t\treturn NULL;\n\tcase EC_GROUP_NIST_PRIME_224:\n\t\tret = ec_group_new_GFp_from_hex(_EC_GROUP_NIST_PRIME_224);\n\t\tbreak;\n\tcase EC_GROUP_NIST_PRIME_384:\n\t\tret = ec_group_new_GFp_from_hex(_EC_GROUP_NIST_PRIME_384);\n\t\tbreak;\n\tcase EC_GROUP_NIST_PRIME_521:\n\t\tret = ec_group_new_GFp_from_hex(_EC_GROUP_NIST_PRIME_521);\n\t\tbreak;\n\tcase EC_GROUP_NIST_PRIME_192:\n\tcase EC_GROUP_X9_62_PRIME_192V1:\n\t\tret = ec_group_new_GFp_from_hex(_EC_GROUP_NIST_PRIME_192);\n\t\tbreak;\n\tcase EC_GROUP_X9_62_PRIME_192V2:\n\t\tret = ec_group_new_GFp_from_hex(_EC_GROUP_X9_62_PRIME_192V2);\n\t\tbreak;\n\tcase EC_GROUP_X9_62_PRIME_192V3:\n\t\tret = ec_group_new_GFp_from_hex(_EC_GROUP_X9_62_PRIME_192V3);\n\t\tbreak;\n\tcase EC_GROUP_X9_62_PRIME_239V1:\n\t\tret = ec_group_new_GFp_from_hex(_EC_GROUP_X9_62_PRIME_239V1);\n\t\tbreak;\n\tcase EC_GROUP_X9_62_PRIME_239V2:\n\t\tret = ec_group_new_GFp_from_hex(_EC_GROUP_X9_62_PRIME_239V2);\n\t\tbreak;\n\tcase EC_GROUP_X9_62_PRIME_239V3:\n\t\tret = ec_group_new_GFp_from_hex(_EC_GROUP_X9_62_PRIME_239V3);\n\t\tbreak;\n\tcase EC_GROUP_NIST_PRIME_256:\n\tcase EC_GROUP_X9_62_PRIME_256V1:\n\t\tret = ec_group_new_GFp_from_hex(_EC_GROUP_X9_62_PRIME_256V1);\n\t\tbreak;\n\tcase EC_GROUP_SECG_PRIME_112R1:\n\t\tret = ec_group_new_GFp_from_hex(_EC_GROUP_SECG_PRIME_112R1);\n\t\tbreak;\n\tcase EC_GROUP_SECG_PRIME_112R2:\n\t\tret = ec_group_new_GFp_from_hex(_EC_GROUP_SECG_PRIME_112R2);\n\t\tbreak;\n\tcase EC_GROUP_SECG_PRIME_128R1:\n\t\tret = ec_group_new_GFp_from_hex(_EC_GROUP_SECG_PRIME_128R1);\n\t\tbreak;\n\tcase EC_GROUP_SECG_PRIME_128R2:\n\t\tret = ec_group_new_GFp_from_hex(_EC_GROUP_SECG_PRIME_128R2);\n\t\tbreak;\n\tcase EC_GROUP_SECG_PRIME_160K1:\n\t\tret = ec_group_new_GFp_from_hex(_EC_GROUP_SECG_PRIME_160K1);\n\t\tbreak;\n\tcase EC_GROUP_SECG_PRIME_160R1:\n\t\tret = ec_group_new_GFp_from_hex(_EC_GROUP_SECG_PRIME_160R1);\n\t\tbreak;\n\tcase EC_GROUP_SECG_PRIME_160R2:\n\t\tret = ec_group_new_GFp_from_hex(_EC_GROUP_SECG_PRIME_160R2);\n\t\tbreak;\n\tcase EC_GROUP_SECG_PRIME_192K1:\n\t\tret = ec_group_new_GFp_from_hex(_EC_GROUP_SECG_PRIME_192K1);\n\t\tbreak;\n\tcase EC_GROUP_SECG_PRIME_224K1:\n\t\tret = ec_group_new_GFp_from_hex(_EC_GROUP_SECG_PRIME_224K1);\n\t\tbreak;\n\tcase EC_GROUP_SECG_PRIME_256K1:\n\t\tret = ec_group_new_GFp_from_hex(_EC_GROUP_SECG_PRIME_256K1);\n\t\tbreak;\n\t\t}\n\tif (ret == NULL)\n\t\t{\n\t\tECerr(EC_F_EC_GROUP_NEW_BY_NAME, EC_R_UNKNOWN_GROUP);\n\t\treturn NULL;\n\t\t}\n\tEC_GROUP_set_nid(ret, name);\n\treturn ret;\n\t}', 'static EC_GROUP *ec_group_new_GFp_from_hex(const char *prime_in,\n\t const char *a_in, const char *b_in,\n\t const char *x_in, const int y_bit, const char *order_in, const BN_ULONG cofac_in)\n\t{\n\tEC_GROUP *group=NULL;\n\tEC_POINT *P=NULL;\n\tBN_CTX\t *ctx=NULL;\n\tBIGNUM \t *prime=NULL,*a=NULL,*b=NULL,*x=NULL,*order=NULL;\n\tint\t ok=0;\n\tif ((ctx = BN_CTX_new()) == NULL) goto bn_err;\n\tif ((prime = BN_new()) == NULL || (a = BN_new()) == NULL || (b = BN_new()) == NULL ||\n\t\t(x = BN_new()) == NULL || (order = BN_new()) == NULL) goto bn_err;\n\tif (!BN_hex2bn(&prime, prime_in)) goto bn_err;\n\tif (!BN_hex2bn(&a, a_in)) goto bn_err;\n\tif (!BN_hex2bn(&b, b_in)) goto bn_err;\n\tif ((group = EC_GROUP_new_curve_GFp(prime, a, b, ctx)) == NULL) goto err;\n\tif ((P = EC_POINT_new(group)) == NULL) goto err;\n\tif (!BN_hex2bn(&x, x_in)) goto bn_err;\n\tif (!EC_POINT_set_compressed_coordinates_GFp(group, P, x, y_bit, ctx)) goto err;\n\tif (!BN_hex2bn(&order, order_in)) goto bn_err;\n\tif (!BN_set_word(x, cofac_in)) goto bn_err;\n\tif (!EC_GROUP_set_generator(group, P, order, x)) goto err;\n\tok=1;\nbn_err:\n\tif (!ok)\n\t\tECerr(EC_F_EC_GROUP_NEW_GFP_FROM_HEX, ERR_R_BN_LIB);\nerr:\n\tif (!ok)\n\t\t{\n\t\tEC_GROUP_free(group);\n\t\tgroup = NULL;\n\t\t}\n\tif (P) \t EC_POINT_free(P);\n\tif (ctx) BN_CTX_free(ctx);\n\tif (prime) BN_free(prime);\n\tif (a) BN_free(a);\n\tif (b) BN_free(b);\n\tif (order) BN_free(order);\n\tif (x) BN_free(x);\n\treturn(group);\n\t}', "int BN_hex2bn(BIGNUM **bn, const char *a)\n\t{\n\tBIGNUM *ret=NULL;\n\tBN_ULONG l=0;\n\tint neg=0,h,m,i,j,k,c;\n\tint num;\n\tif ((a == NULL) || (*a == '\\0')) return(0);\n\tif (*a == '-') { neg=1; a++; }\n\tfor (i=0; isxdigit((unsigned char) a[i]); i++)\n\t\t;\n\tnum=i+neg;\n\tif (bn == NULL) return(num);\n\tif (*bn == NULL)\n\t\t{\n\t\tif ((ret=BN_new()) == NULL) return(0);\n\t\t}\n\telse\n\t\t{\n\t\tret= *bn;\n\t\tBN_zero(ret);\n\t\t}\n\tif (bn_expand(ret,i*4) == NULL) goto err;\n\tj=i;\n\tm=0;\n\th=0;\n\twhile (j > 0)\n\t\t{\n\t\tm=((BN_BYTES*2) <= j)?(BN_BYTES*2):j;\n\t\tl=0;\n\t\tfor (;;)\n\t\t\t{\n\t\t\tc=a[j-m];\n\t\t\tif ((c >= '0') && (c <= '9')) k=c-'0';\n\t\t\telse if ((c >= 'a') && (c <= 'f')) k=c-'a'+10;\n\t\t\telse if ((c >= 'A') && (c <= 'F')) k=c-'A'+10;\n\t\t\telse k=0;\n\t\t\tl=(l<<4)|k;\n\t\t\tif (--m <= 0)\n\t\t\t\t{\n\t\t\t\tret->d[h++]=l;\n\t\t\t\tbreak;\n\t\t\t\t}\n\t\t\t}\n\t\tj-=(BN_BYTES*2);\n\t\t}\n\tret->top=h;\n\tbn_fix_top(ret);\n\tret->neg=neg;\n\t*bn=ret;\n\treturn(num);\nerr:\n\tif (*bn == NULL) BN_free(ret);\n\treturn(0);\n\t}"] |
25,965 | 0 | https://github.com/openssl/openssl/blob/6c2c3e9ba9146ef8c9b1fd2b660357b657706969/ssl/ssl_cert.c/#L723 | int SSL_add_dir_cert_subjects_to_stack(STACK_OF(X509_NAME) *stack,
const char *dir)
{
DIR *d;
struct dirent *dstruct;
int ret = 0;
CRYPTO_w_lock(CRYPTO_LOCK_READDIR);
d = opendir(dir);
if(!d)
{
SYSerr(SYS_F_OPENDIR, get_last_sys_error());
ERR_add_error_data(3, "opendir('", dir, "')");
SSLerr(SSL_F_SSL_ADD_DIR_CERT_SUBJECTS_TO_STACK, ERR_R_SYS_LIB);
goto err;
}
while((dstruct=readdir(d)))
{
char buf[1024];
if(strlen(dir)+strlen(dstruct->d_name)+2 > sizeof buf)
{
SSLerr(SSL_F_SSL_ADD_DIR_CERT_SUBJECTS_TO_STACK,SSL_R_PATH_TOO_LONG);
goto err;
}
sprintf(buf,"%s/%s",dir,dstruct->d_name);
if(!SSL_add_file_cert_subjects_to_stack(stack,buf))
goto err;
}
ret = 1;
err:
CRYPTO_w_unlock(CRYPTO_LOCK_READDIR);
return ret;
} | ['int SSL_add_dir_cert_subjects_to_stack(STACK_OF(X509_NAME) *stack,\n\t\t\t\t const char *dir)\n {\n DIR *d;\n struct dirent *dstruct;\n int ret = 0;\n CRYPTO_w_lock(CRYPTO_LOCK_READDIR);\n d = opendir(dir);\n if(!d)\n\t{\n\tSYSerr(SYS_F_OPENDIR, get_last_sys_error());\n\tERR_add_error_data(3, "opendir(\'", dir, "\')");\n\tSSLerr(SSL_F_SSL_ADD_DIR_CERT_SUBJECTS_TO_STACK, ERR_R_SYS_LIB);\n\tgoto err;\n\t}\n while((dstruct=readdir(d)))\n\t{\n\tchar buf[1024];\n\tif(strlen(dir)+strlen(dstruct->d_name)+2 > sizeof buf)\n\t {\n\t SSLerr(SSL_F_SSL_ADD_DIR_CERT_SUBJECTS_TO_STACK,SSL_R_PATH_TOO_LONG);\n\t goto err;\n\t }\n\tsprintf(buf,"%s/%s",dir,dstruct->d_name);\n\tif(!SSL_add_file_cert_subjects_to_stack(stack,buf))\n\t goto err;\n\t}\n ret = 1;\nerr:\n CRYPTO_w_unlock(CRYPTO_LOCK_READDIR);\n return ret;\n }', 'void CRYPTO_lock(int mode, int type, const char *file, int line)\n\t{\n#ifdef LOCK_DEBUG\n\t\t{\n\t\tchar *rw_text,*operation_text;\n\t\tif (mode & CRYPTO_LOCK)\n\t\t\toperation_text="lock ";\n\t\telse if (mode & CRYPTO_UNLOCK)\n\t\t\toperation_text="unlock";\n\t\telse\n\t\t\toperation_text="ERROR ";\n\t\tif (mode & CRYPTO_READ)\n\t\t\trw_text="r";\n\t\telse if (mode & CRYPTO_WRITE)\n\t\t\trw_text="w";\n\t\telse\n\t\t\trw_text="ERROR";\n\t\tfprintf(stderr,"lock:%08lx:(%s)%s %-18s %s:%d\\n",\n\t\t\tCRYPTO_thread_id(), rw_text, operation_text,\n\t\t\tCRYPTO_get_lock_name(type), file, line);\n\t\t}\n#endif\n\tif (locking_callback != NULL)\n\t\tlocking_callback(mode,type,file,line);\n\t}', 'int SSL_add_file_cert_subjects_to_stack(STACK_OF(X509_NAME) *stack,\n\t\t\t\t\tconst char *file)\n {\n BIO *in;\n X509 *x=NULL;\n X509_NAME *xn=NULL;\n int ret=1;\n int (*oldcmp)(X509_NAME **a, X509_NAME **b);\n oldcmp=sk_X509_NAME_set_cmp_func(stack,xname_cmp);\n in=BIO_new(BIO_s_file_internal());\n if (in == NULL)\n\t{\n\tSSLerr(SSL_F_SSL_ADD_FILE_CERT_SUBJECTS_TO_STACK,ERR_R_MALLOC_FAILURE);\n\tgoto err;\n\t}\n if (!BIO_read_filename(in,file))\n\tgoto err;\n for (;;)\n\t{\n\tif (PEM_read_bio_X509(in,&x,NULL,NULL) == NULL)\n\t break;\n\tif ((xn=X509_get_subject_name(x)) == NULL) goto err;\n\txn=X509_NAME_dup(xn);\n\tif (xn == NULL) goto err;\n\tif (sk_X509_NAME_find(stack,xn) >= 0)\n\t X509_NAME_free(xn);\n\telse\n\t sk_X509_NAME_push(stack,xn);\n\t}\n if (0)\n\t{\nerr:\n\tret=0;\n\t}\n if(in != NULL)\n\tBIO_free(in);\n if(x != NULL)\n\tX509_free(x);\n sk_X509_NAME_set_cmp_func(stack,oldcmp);\n return ret;\n }', 'IMPLEMENT_STACK_OF(X509_NAME)', 'int (*sk_set_cmp_func(STACK *sk, int (*c)()))(void)\n\t{\n\tint (*old)()=sk->comp;\n\tif (sk->comp != c)\n\t\tsk->sorted=0;\n\tsk->comp=c;\n\treturn old;\n\t}', 'BIO_METHOD *BIO_s_file(void)\n\t{\n\treturn(&methods_filep);\n\t}', 'BIO *BIO_new(BIO_METHOD *method)\n\t{\n\tBIO *ret=NULL;\n\tret=(BIO *)Malloc(sizeof(BIO));\n\tif (ret == NULL)\n\t\t{\n\t\tBIOerr(BIO_F_BIO_NEW,ERR_R_MALLOC_FAILURE);\n\t\treturn(NULL);\n\t\t}\n\tif (!BIO_set(ret,method))\n\t\t{\n\t\tFree(ret);\n\t\tret=NULL;\n\t\t}\n\treturn(ret);\n\t}', 'void *CRYPTO_malloc(int num, char *file, int line)\n\t{\n\tchar *ret = NULL;\n\tallow_customize = 0;\n\tif (malloc_debug_func != NULL)\n\t\t{\n\t\tallow_customize_debug = 0;\n\t\tmalloc_debug_func(NULL, num, file, line, 0);\n\t\t}\n\tret = malloc_func(num);\n#ifdef LEVITTE_DEBUG\n\tfprintf(stderr, "LEVITTE_DEBUG: > 0x%p (%d)\\n", ret, num);\n#endif\n\tif (malloc_debug_func != NULL)\n\t\tmalloc_debug_func(ret, num, file, line, 1);\n\treturn ret;\n\t}', 'void ERR_put_error(int lib, int func, int reason, const char *file,\n\t int line)\n\t{\n\tERR_STATE *es;\n#ifdef _OSD_POSIX\n\tif (strncmp(file,"*POSIX(", sizeof("*POSIX(")-1) == 0) {\n\t\tchar *end;\n\t\tfile += sizeof("*POSIX(")-1;\n\t\tend = &file[strlen(file)-1];\n\t\tif (*end == \')\')\n\t\t\t*end = \'\\0\';\n\t\tif ((end = strrchr(file, \'/\')) != NULL)\n\t\t\tfile = &end[1];\n\t}\n#endif\n\tes=ERR_get_state();\n\tes->top=(es->top+1)%ERR_NUM_ERRORS;\n\tif (es->top == es->bottom)\n\t\tes->bottom=(es->bottom+1)%ERR_NUM_ERRORS;\n\tes->err_buffer[es->top]=ERR_PACK(lib,func,reason);\n\tes->err_file[es->top]=file;\n\tes->err_line[es->top]=line;\n\terr_clear_data(es,es->top);\n\t}'] |
25,966 | 0 | https://github.com/openssl/openssl/blob/02cba628daa7fea959c561531a8a984756bdf41c/crypto/bn/bn_shift.c/#L115 | int BN_lshift(BIGNUM *r, const BIGNUM *a, int n)
{
int i, nw, lb, rb;
BN_ULONG *t, *f;
BN_ULONG l;
bn_check_top(r);
bn_check_top(a);
if (n < 0) {
BNerr(BN_F_BN_LSHIFT, BN_R_INVALID_SHIFT);
return 0;
}
nw = n / BN_BITS2;
if (bn_wexpand(r, a->top + nw + 1) == NULL)
return (0);
r->neg = a->neg;
lb = n % BN_BITS2;
rb = BN_BITS2 - lb;
f = a->d;
t = r->d;
t[a->top + nw] = 0;
if (lb == 0)
for (i = a->top - 1; i >= 0; i--)
t[nw + i] = f[i];
else
for (i = a->top - 1; i >= 0; i--) {
l = f[i];
t[nw + i + 1] |= (l >> rb) & BN_MASK2;
t[nw + i] = (l << lb) & BN_MASK2;
}
memset(t, 0, sizeof(*t) * nw);
r->top = a->top + nw + 1;
bn_correct_top(r);
bn_check_top(r);
return (1);
} | ['BIGNUM *int_bn_mod_inverse(BIGNUM *in,\n const BIGNUM *a, const BIGNUM *n, BN_CTX *ctx,\n int *pnoinv)\n{\n BIGNUM *A, *B, *X, *Y, *M, *D, *T, *R = NULL;\n BIGNUM *ret = NULL;\n int sign;\n if (pnoinv)\n *pnoinv = 0;\n if ((BN_get_flags(a, BN_FLG_CONSTTIME) != 0)\n || (BN_get_flags(n, BN_FLG_CONSTTIME) != 0)) {\n return BN_mod_inverse_no_branch(in, a, n, ctx);\n }\n bn_check_top(a);\n bn_check_top(n);\n BN_CTX_start(ctx);\n A = BN_CTX_get(ctx);\n B = BN_CTX_get(ctx);\n X = BN_CTX_get(ctx);\n D = BN_CTX_get(ctx);\n M = BN_CTX_get(ctx);\n Y = BN_CTX_get(ctx);\n T = BN_CTX_get(ctx);\n if (T == NULL)\n goto err;\n if (in == NULL)\n R = BN_new();\n else\n R = in;\n if (R == NULL)\n goto err;\n BN_one(X);\n BN_zero(Y);\n if (BN_copy(B, a) == NULL)\n goto err;\n if (BN_copy(A, n) == NULL)\n goto err;\n A->neg = 0;\n if (B->neg || (BN_ucmp(B, A) >= 0)) {\n if (!BN_nnmod(B, B, A, ctx))\n goto err;\n }\n sign = -1;\n if (BN_is_odd(n) && (BN_num_bits(n) <= 2048)) {\n int shift;\n while (!BN_is_zero(B)) {\n shift = 0;\n while (!BN_is_bit_set(B, shift)) {\n shift++;\n if (BN_is_odd(X)) {\n if (!BN_uadd(X, X, n))\n goto err;\n }\n if (!BN_rshift1(X, X))\n goto err;\n }\n if (shift > 0) {\n if (!BN_rshift(B, B, shift))\n goto err;\n }\n shift = 0;\n while (!BN_is_bit_set(A, shift)) {\n shift++;\n if (BN_is_odd(Y)) {\n if (!BN_uadd(Y, Y, n))\n goto err;\n }\n if (!BN_rshift1(Y, Y))\n goto err;\n }\n if (shift > 0) {\n if (!BN_rshift(A, A, shift))\n goto err;\n }\n if (BN_ucmp(B, A) >= 0) {\n if (!BN_uadd(X, X, Y))\n goto err;\n if (!BN_usub(B, B, A))\n goto err;\n } else {\n if (!BN_uadd(Y, Y, X))\n goto err;\n if (!BN_usub(A, A, B))\n goto err;\n }\n }\n } else {\n while (!BN_is_zero(B)) {\n BIGNUM *tmp;\n if (BN_num_bits(A) == BN_num_bits(B)) {\n if (!BN_one(D))\n goto err;\n if (!BN_sub(M, A, B))\n goto err;\n } else if (BN_num_bits(A) == BN_num_bits(B) + 1) {\n if (!BN_lshift1(T, B))\n goto err;\n if (BN_ucmp(A, T) < 0) {\n if (!BN_one(D))\n goto err;\n if (!BN_sub(M, A, B))\n goto err;\n } else {\n if (!BN_sub(M, A, T))\n goto err;\n if (!BN_add(D, T, B))\n goto err;\n if (BN_ucmp(A, D) < 0) {\n if (!BN_set_word(D, 2))\n goto err;\n } else {\n if (!BN_set_word(D, 3))\n goto err;\n if (!BN_sub(M, M, B))\n goto err;\n }\n }\n } else {\n if (!BN_div(D, M, A, B, ctx))\n goto err;\n }\n tmp = A;\n A = B;\n B = M;\n if (BN_is_one(D)) {\n if (!BN_add(tmp, X, Y))\n goto err;\n } else {\n if (BN_is_word(D, 2)) {\n if (!BN_lshift1(tmp, X))\n goto err;\n } else if (BN_is_word(D, 4)) {\n if (!BN_lshift(tmp, X, 2))\n goto err;\n } else if (D->top == 1) {\n if (!BN_copy(tmp, X))\n goto err;\n if (!BN_mul_word(tmp, D->d[0]))\n goto err;\n } else {\n if (!BN_mul(tmp, D, X, ctx))\n goto err;\n }\n if (!BN_add(tmp, tmp, Y))\n goto err;\n }\n M = Y;\n Y = X;\n X = tmp;\n sign = -sign;\n }\n }\n if (sign < 0) {\n if (!BN_sub(Y, n, Y))\n goto err;\n }\n if (BN_is_one(A)) {\n if (!Y->neg && BN_ucmp(Y, n) < 0) {\n if (!BN_copy(R, Y))\n goto err;\n } else {\n if (!BN_nnmod(R, Y, n, ctx))\n goto err;\n }\n } else {\n if (pnoinv)\n *pnoinv = 1;\n goto err;\n }\n ret = R;\n err:\n if ((ret == NULL) && (in == NULL))\n BN_free(R);\n BN_CTX_end(ctx);\n bn_check_top(ret);\n return (ret);\n}', 'int BN_lshift(BIGNUM *r, const BIGNUM *a, int n)\n{\n int i, nw, lb, rb;\n BN_ULONG *t, *f;\n BN_ULONG l;\n bn_check_top(r);\n bn_check_top(a);\n if (n < 0) {\n BNerr(BN_F_BN_LSHIFT, BN_R_INVALID_SHIFT);\n return 0;\n }\n nw = n / BN_BITS2;\n if (bn_wexpand(r, a->top + nw + 1) == NULL)\n return (0);\n r->neg = a->neg;\n lb = n % BN_BITS2;\n rb = BN_BITS2 - lb;\n f = a->d;\n t = r->d;\n t[a->top + nw] = 0;\n if (lb == 0)\n for (i = a->top - 1; i >= 0; i--)\n t[nw + i] = f[i];\n else\n for (i = a->top - 1; i >= 0; i--) {\n l = f[i];\n t[nw + i + 1] |= (l >> rb) & BN_MASK2;\n t[nw + i] = (l << lb) & BN_MASK2;\n }\n memset(t, 0, sizeof(*t) * nw);\n r->top = a->top + nw + 1;\n bn_correct_top(r);\n bn_check_top(r);\n return (1);\n}', 'BIGNUM *bn_wexpand(BIGNUM *a, int words)\n{\n return (words <= a->dmax) ? a : bn_expand2(a, words);\n}'] |
25,967 | 0 | https://github.com/openssl/openssl/blob/95dc05bc6d0dfe0f3f3681f5e27afbc3f7a35eea/crypto/bn/bn_asm.c/#L535 | void bn_mul_comba8(BN_ULONG *r, BN_ULONG *a, BN_ULONG *b)
{
#ifdef BN_LLONG
BN_ULLONG t;
#else
BN_ULONG bl,bh;
#endif
BN_ULONG t1,t2;
BN_ULONG c1,c2,c3;
c1=0;
c2=0;
c3=0;
mul_add_c(a[0],b[0],c1,c2,c3);
r[0]=c1;
c1=0;
mul_add_c(a[0],b[1],c2,c3,c1);
mul_add_c(a[1],b[0],c2,c3,c1);
r[1]=c2;
c2=0;
mul_add_c(a[2],b[0],c3,c1,c2);
mul_add_c(a[1],b[1],c3,c1,c2);
mul_add_c(a[0],b[2],c3,c1,c2);
r[2]=c3;
c3=0;
mul_add_c(a[0],b[3],c1,c2,c3);
mul_add_c(a[1],b[2],c1,c2,c3);
mul_add_c(a[2],b[1],c1,c2,c3);
mul_add_c(a[3],b[0],c1,c2,c3);
r[3]=c1;
c1=0;
mul_add_c(a[4],b[0],c2,c3,c1);
mul_add_c(a[3],b[1],c2,c3,c1);
mul_add_c(a[2],b[2],c2,c3,c1);
mul_add_c(a[1],b[3],c2,c3,c1);
mul_add_c(a[0],b[4],c2,c3,c1);
r[4]=c2;
c2=0;
mul_add_c(a[0],b[5],c3,c1,c2);
mul_add_c(a[1],b[4],c3,c1,c2);
mul_add_c(a[2],b[3],c3,c1,c2);
mul_add_c(a[3],b[2],c3,c1,c2);
mul_add_c(a[4],b[1],c3,c1,c2);
mul_add_c(a[5],b[0],c3,c1,c2);
r[5]=c3;
c3=0;
mul_add_c(a[6],b[0],c1,c2,c3);
mul_add_c(a[5],b[1],c1,c2,c3);
mul_add_c(a[4],b[2],c1,c2,c3);
mul_add_c(a[3],b[3],c1,c2,c3);
mul_add_c(a[2],b[4],c1,c2,c3);
mul_add_c(a[1],b[5],c1,c2,c3);
mul_add_c(a[0],b[6],c1,c2,c3);
r[6]=c1;
c1=0;
mul_add_c(a[0],b[7],c2,c3,c1);
mul_add_c(a[1],b[6],c2,c3,c1);
mul_add_c(a[2],b[5],c2,c3,c1);
mul_add_c(a[3],b[4],c2,c3,c1);
mul_add_c(a[4],b[3],c2,c3,c1);
mul_add_c(a[5],b[2],c2,c3,c1);
mul_add_c(a[6],b[1],c2,c3,c1);
mul_add_c(a[7],b[0],c2,c3,c1);
r[7]=c2;
c2=0;
mul_add_c(a[7],b[1],c3,c1,c2);
mul_add_c(a[6],b[2],c3,c1,c2);
mul_add_c(a[5],b[3],c3,c1,c2);
mul_add_c(a[4],b[4],c3,c1,c2);
mul_add_c(a[3],b[5],c3,c1,c2);
mul_add_c(a[2],b[6],c3,c1,c2);
mul_add_c(a[1],b[7],c3,c1,c2);
r[8]=c3;
c3=0;
mul_add_c(a[2],b[7],c1,c2,c3);
mul_add_c(a[3],b[6],c1,c2,c3);
mul_add_c(a[4],b[5],c1,c2,c3);
mul_add_c(a[5],b[4],c1,c2,c3);
mul_add_c(a[6],b[3],c1,c2,c3);
mul_add_c(a[7],b[2],c1,c2,c3);
r[9]=c1;
c1=0;
mul_add_c(a[7],b[3],c2,c3,c1);
mul_add_c(a[6],b[4],c2,c3,c1);
mul_add_c(a[5],b[5],c2,c3,c1);
mul_add_c(a[4],b[6],c2,c3,c1);
mul_add_c(a[3],b[7],c2,c3,c1);
r[10]=c2;
c2=0;
mul_add_c(a[4],b[7],c3,c1,c2);
mul_add_c(a[5],b[6],c3,c1,c2);
mul_add_c(a[6],b[5],c3,c1,c2);
mul_add_c(a[7],b[4],c3,c1,c2);
r[11]=c3;
c3=0;
mul_add_c(a[7],b[5],c1,c2,c3);
mul_add_c(a[6],b[6],c1,c2,c3);
mul_add_c(a[5],b[7],c1,c2,c3);
r[12]=c1;
c1=0;
mul_add_c(a[6],b[7],c2,c3,c1);
mul_add_c(a[7],b[6],c2,c3,c1);
r[13]=c2;
c2=0;
mul_add_c(a[7],b[7],c3,c1,c2);
r[14]=c3;
r[15]=c1;
} | ['int BN_mod_exp_recp(BIGNUM *r, BIGNUM *a, BIGNUM *p, BIGNUM *m, BN_CTX *ctx)\n\t{\n\tint i,j,bits,ret=0,wstart,wend,window,wvalue;\n\tint start=1,ts=0;\n\tBIGNUM *aa;\n\tBIGNUM val[TABLE_SIZE];\n\tBN_RECP_CTX recp;\n\taa= &(ctx->bn[ctx->tos++]);\n\tbits=BN_num_bits(p);\n\tif (bits == 0)\n\t\t{\n\t\tBN_one(r);\n\t\treturn(1);\n\t\t}\n\tBN_RECP_CTX_init(&recp);\n\tif (BN_RECP_CTX_set(&recp,m,ctx) <= 0) goto err;\n\tBN_init(&(val[0]));\n\tts=1;\n\tif (!BN_mod(&(val[0]),a,m,ctx)) goto err;\n\tif (!BN_mod_mul_reciprocal(aa,&(val[0]),&(val[0]),&recp,ctx))\n\t\tgoto err;\n\tif (bits <= 17)\n\t\twindow=1;\n\telse if (bits >= 256)\n\t\twindow=5;\n\telse if (bits >= 128)\n\t\twindow=4;\n\telse\n\t\twindow=3;\n\tj=1<<(window-1);\n\tfor (i=1; i<j; i++)\n\t\t{\n\t\tBN_init(&val[i]);\n\t\tif (!BN_mod_mul_reciprocal(&(val[i]),&(val[i-1]),aa,&recp,ctx))\n\t\t\tgoto err;\n\t\t}\n\tts=i;\n\tstart=1;\n\twvalue=0;\n\twstart=bits-1;\n\twend=0;\n\tif (!BN_one(r)) goto err;\n\tfor (;;)\n\t\t{\n\t\tif (BN_is_bit_set(p,wstart) == 0)\n\t\t\t{\n\t\t\tif (!start)\n\t\t\t\tif (!BN_mod_mul_reciprocal(r,r,r,&recp,ctx))\n\t\t\t\tgoto err;\n\t\t\tif (wstart == 0) break;\n\t\t\twstart--;\n\t\t\tcontinue;\n\t\t\t}\n\t\tj=wstart;\n\t\twvalue=1;\n\t\twend=0;\n\t\tfor (i=1; i<window; i++)\n\t\t\t{\n\t\t\tif (wstart-i < 0) break;\n\t\t\tif (BN_is_bit_set(p,wstart-i))\n\t\t\t\t{\n\t\t\t\twvalue<<=(i-wend);\n\t\t\t\twvalue|=1;\n\t\t\t\twend=i;\n\t\t\t\t}\n\t\t\t}\n\t\tj=wend+1;\n\t\tif (!start)\n\t\t\tfor (i=0; i<j; i++)\n\t\t\t\t{\n\t\t\t\tif (!BN_mod_mul_reciprocal(r,r,r,&recp,ctx))\n\t\t\t\t\tgoto err;\n\t\t\t\t}\n\t\tif (!BN_mod_mul_reciprocal(r,r,&(val[wvalue>>1]),&recp,ctx))\n\t\t\tgoto err;\n\t\twstart-=wend+1;\n\t\twvalue=0;\n\t\tstart=0;\n\t\tif (wstart < 0) break;\n\t\t}\n\tret=1;\nerr:\n\tctx->tos--;\n\tfor (i=0; i<ts; i++)\n\t\tBN_clear_free(&(val[i]));\n\tBN_RECP_CTX_free(&recp);\n\treturn(ret);\n\t}', 'int BN_RECP_CTX_set(BN_RECP_CTX *recp, BIGNUM *d, BN_CTX *ctx)\n\t{\n\tBN_copy(&(recp->N),d);\n\tBN_zero(&(recp->Nr));\n\trecp->num_bits=BN_num_bits(d);\n\trecp->shift=0;\n\treturn(1);\n\t}', 'BIGNUM *BN_copy(BIGNUM *a, BIGNUM *b)\n\t{\n\tint i;\n\tBN_ULONG *A,*B;\n\tbn_check_top(b);\n\tif (a == b) return(a);\n\tif (bn_wexpand(a,b->top) == NULL) return(NULL);\n#if 1\n\tA=a->d;\n\tB=b->d;\n\tfor (i=b->top&(~7); i>0; i-=8)\n\t\t{\n\t\tA[0]=B[0];\n\t\tA[1]=B[1];\n\t\tA[2]=B[2];\n\t\tA[3]=B[3];\n\t\tA[4]=B[4];\n\t\tA[5]=B[5];\n\t\tA[6]=B[6];\n\t\tA[7]=B[7];\n\t\tA+=8;\n\t\tB+=8;\n\t\t}\n\tswitch (b->top&7)\n\t\t{\n\tcase 7:\n\t\tA[6]=B[6];\n\tcase 6:\n\t\tA[5]=B[5];\n\tcase 5:\n\t\tA[4]=B[4];\n\tcase 4:\n\t\tA[3]=B[3];\n\tcase 3:\n\t\tA[2]=B[2];\n\tcase 2:\n\t\tA[1]=B[1];\n\tcase 1:\n\t\tA[0]=B[0];\n case 0:\n\t\t;\n\t\t}\n#else\n\tmemcpy(a->d,b->d,sizeof(b->d[0])*b->top);\n#endif\n\ta->top=b->top;\n\tif ((a->top == 0) && (a->d != NULL))\n\t\ta->d[0]=0;\n\ta->neg=b->neg;\n\treturn(a);\n\t}', 'int BN_mod_mul_reciprocal(BIGNUM *r, BIGNUM *x, BIGNUM *y, BN_RECP_CTX *recp,\n\t BN_CTX *ctx)\n\t{\n\tint ret=0;\n\tBIGNUM *a;\n\ta= &(ctx->bn[ctx->tos++]);\n\tif (y != NULL)\n\t\t{\n\t\tif (x == y)\n\t\t\t{ if (!BN_sqr(a,x,ctx)) goto err; }\n\t\telse\n\t\t\t{ if (!BN_mul(a,x,y,ctx)) goto err; }\n\t\t}\n\telse\n\t\ta=x;\n\tBN_div_recp(NULL,r,a,recp,ctx);\n\tret=1;\nerr:\n\tctx->tos--;\n\treturn(ret);\n\t}', 'int BN_div_recp(BIGNUM *dv, BIGNUM *rem, BIGNUM *m, BN_RECP_CTX *recp,\n\t BN_CTX *ctx)\n\t{\n\tint i,j,tos,ret=0,ex;\n\tBIGNUM *a,*b,*d,*r;\n\ttos=ctx->tos;\n\ta= &(ctx->bn[ctx->tos++]);\n\tb= &(ctx->bn[ctx->tos++]);\n\tif (dv != NULL)\n\t\td=dv;\n\telse\n\t\td= &(ctx->bn[ctx->tos++]);\n\tif (rem != NULL)\n\t\tr=rem;\n\telse\n\t\tr= &(ctx->bn[ctx->tos++]);\n\tif (BN_ucmp(m,&(recp->N)) < 0)\n\t\t{\n\t\tBN_zero(d);\n\t\tBN_copy(r,m);\n\t\tctx->tos=tos;\n\t\treturn(1);\n\t\t}\n\ti=BN_num_bits(m);\n\tj=recp->num_bits*2;\n\tif (j > i)\n\t\t{\n\t\ti=j;\n\t\tex=0;\n\t\t}\n\telse\n\t\t{\n\t\tex=(i-j)/2;\n\t\t}\n\tj=i/2;\n\tif (i != recp->shift)\n\t\trecp->shift=BN_reciprocal(&(recp->Nr),&(recp->N),\n\t\t\ti,ctx);\n\tif (!BN_rshift(a,m,j-ex)) goto err;\n\tif (!BN_mul(b,a,&(recp->Nr),ctx)) goto err;\n\tif (!BN_rshift(d,b,j+ex)) goto err;\n\td->neg=0;\n\tif (!BN_mul(b,&(recp->N),d,ctx)) goto err;\n\tif (!BN_usub(r,m,b)) goto err;\n\tr->neg=0;\n\tj=0;\n#if 1\n\twhile (BN_ucmp(r,&(recp->N)) >= 0)\n\t\t{\n\t\tif (j++ > 2)\n\t\t\t{\n\t\t\tBNerr(BN_F_BN_MOD_MUL_RECIPROCAL,BN_R_BAD_RECIPROCAL);\n\t\t\tgoto err;\n\t\t\t}\n\t\tif (!BN_usub(r,r,&(recp->N))) goto err;\n\t\tif (!BN_add_word(d,1)) goto err;\n\t\t}\n#endif\n\tr->neg=BN_is_zero(r)?0:m->neg;\n\td->neg=m->neg^recp->N.neg;\n\tret=1;\nerr:\n\tctx->tos=tos;\n\treturn(ret);\n\t}', 'int BN_mul(BIGNUM *r, BIGNUM *a, BIGNUM *b, BN_CTX *ctx)\n\t{\n\tint top,al,bl;\n\tBIGNUM *rr;\n#ifdef BN_RECURSION\n\tBIGNUM *t;\n\tint i,j,k;\n#endif\n#ifdef BN_COUNT\nprintf("BN_mul %d * %d\\n",a->top,b->top);\n#endif\n\tbn_check_top(a);\n\tbn_check_top(b);\n\tbn_check_top(r);\n\tal=a->top;\n\tbl=b->top;\n\tr->neg=a->neg^b->neg;\n\tif ((al == 0) || (bl == 0))\n\t\t{\n\t\tBN_zero(r);\n\t\treturn(1);\n\t\t}\n\ttop=al+bl;\n\tif ((r == a) || (r == b))\n\t\trr= &(ctx->bn[ctx->tos+1]);\n\telse\n\t\trr=r;\n#if defined(BN_MUL_COMBA) || defined(BN_RECURSION)\n\tif (al == bl)\n\t\t{\n# ifdef BN_MUL_COMBA\n if (al == 8)\n\t\t\t{\n\t\t\tif (bn_wexpand(rr,16) == NULL) return(0);\n\t\t\tr->top=16;\n\t\t\tbn_mul_comba8(rr->d,a->d,b->d);\n\t\t\tgoto end;\n\t\t\t}\n\t\telse\n# endif\n#ifdef BN_RECURSION\n\t\tif (al < BN_MULL_SIZE_NORMAL)\n#endif\n\t\t\t{\n\t\t\tif (bn_wexpand(rr,top) == NULL) return(0);\n\t\t\trr->top=top;\n\t\t\tbn_mul_normal(rr->d,a->d,al,b->d,bl);\n\t\t\tgoto end;\n\t\t\t}\n# ifdef BN_RECURSION\n\t\tgoto symetric;\n# endif\n\t\t}\n#endif\n#ifdef BN_RECURSION\n\telse if ((al < BN_MULL_SIZE_NORMAL) || (bl < BN_MULL_SIZE_NORMAL))\n\t\t{\n\t\tif (bn_wexpand(rr,top) == NULL) return(0);\n\t\trr->top=top;\n\t\tbn_mul_normal(rr->d,a->d,al,b->d,bl);\n\t\tgoto end;\n\t\t}\n\telse\n\t\t{\n\t\ti=(al-bl);\n\t\tif ((i == 1) && !BN_get_flags(b,BN_FLG_STATIC_DATA))\n\t\t\t{\n\t\t\tbn_wexpand(b,al);\n\t\t\tb->d[bl]=0;\n\t\t\tbl++;\n\t\t\tgoto symetric;\n\t\t\t}\n\t\telse if ((i == -1) && !BN_get_flags(a,BN_FLG_STATIC_DATA))\n\t\t\t{\n\t\t\tbn_wexpand(a,bl);\n\t\t\ta->d[al]=0;\n\t\t\tal++;\n\t\t\tgoto symetric;\n\t\t\t}\n\t\t}\n#endif\n\tif (bn_wexpand(rr,top) == NULL) return(0);\n\trr->top=top;\n\tbn_mul_normal(rr->d,a->d,al,b->d,bl);\n#ifdef BN_RECURSION\n\tif (0)\n\t\t{\nsymetric:\n\t\tj=BN_num_bits_word((BN_ULONG)al);\n\t\tj=1<<(j-1);\n\t\tk=j+j;\n\t\tt= &(ctx->bn[ctx->tos]);\n\t\tif (al == j)\n\t\t\t{\n\t\t\tbn_wexpand(t,k*2);\n\t\t\tbn_wexpand(rr,k*2);\n\t\t\tbn_mul_recursive(rr->d,a->d,b->d,al,t->d);\n\t\t\t}\n\t\telse\n\t\t\t{\n\t\t\tbn_wexpand(a,k);\n\t\t\tbn_wexpand(b,k);\n\t\t\tbn_wexpand(t,k*4);\n\t\t\tbn_wexpand(rr,k*4);\n\t\t\tfor (i=a->top; i<k; i++)\n\t\t\t\ta->d[i]=0;\n\t\t\tfor (i=b->top; i<k; i++)\n\t\t\t\tb->d[i]=0;\n\t\t\tbn_mul_part_recursive(rr->d,a->d,b->d,al-j,j,t->d);\n\t\t\t}\n\t\trr->top=top;\n\t\t}\n#endif\n#if defined(BN_MUL_COMBA) || defined(BN_RECURSION)\nend:\n#endif\n\tbn_fix_top(rr);\n\tif (r != rr) BN_copy(r,rr);\n\treturn(1);\n\t}', 'void bn_mul_recursive(BN_ULONG *r, BN_ULONG *a, BN_ULONG *b, int n2,\n\t BN_ULONG *t)\n\t{\n\tint n=n2/2,c1,c2;\n\tunsigned int neg,zero;\n\tBN_ULONG ln,lo,*p;\n#ifdef BN_COUNT\nprintf(" bn_mul_recursive %d * %d\\n",n2,n2);\n#endif\n#ifdef BN_MUL_COMBA\n if (n2 == 8)\n\t\t{\n\t\tbn_mul_comba8(r,a,b);\n\t\treturn;\n\t\t}\n#endif\n\tif (n2 < BN_MUL_RECURSIVE_SIZE_NORMAL)\n\t\t{\n\t\tbn_mul_normal(r,a,n2,b,n2);\n\t\treturn;\n\t\t}\n\tc1=bn_cmp_words(a,&(a[n]),n);\n\tc2=bn_cmp_words(&(b[n]),b,n);\n\tzero=neg=0;\n\tswitch (c1*3+c2)\n\t\t{\n\tcase -4:\n\t\tbn_sub_words(t, &(a[n]),a, n);\n\t\tbn_sub_words(&(t[n]),b, &(b[n]),n);\n\t\tbreak;\n\tcase -3:\n\t\tzero=1;\n\t\tbreak;\n\tcase -2:\n\t\tbn_sub_words(t, &(a[n]),a, n);\n\t\tbn_sub_words(&(t[n]),&(b[n]),b, n);\n\t\tneg=1;\n\t\tbreak;\n\tcase -1:\n\tcase 0:\n\tcase 1:\n\t\tzero=1;\n\t\tbreak;\n\tcase 2:\n\t\tbn_sub_words(t, a, &(a[n]),n);\n\t\tbn_sub_words(&(t[n]),b, &(b[n]),n);\n\t\tneg=1;\n\t\tbreak;\n\tcase 3:\n\t\tzero=1;\n\t\tbreak;\n\tcase 4:\n\t\tbn_sub_words(t, a, &(a[n]),n);\n\t\tbn_sub_words(&(t[n]),&(b[n]),b, n);\n\t\tbreak;\n\t\t}\n#ifdef BN_MUL_COMBA\n\tif (n == 4)\n\t\t{\n\t\tif (!zero)\n\t\t\tbn_mul_comba4(&(t[n2]),t,&(t[n]));\n\t\telse\n\t\t\tmemset(&(t[n2]),0,8*sizeof(BN_ULONG));\n\t\tbn_mul_comba4(r,a,b);\n\t\tbn_mul_comba4(&(r[n2]),&(a[n]),&(b[n]));\n\t\t}\n\telse if (n == 8)\n\t\t{\n\t\tif (!zero)\n\t\t\tbn_mul_comba8(&(t[n2]),t,&(t[n]));\n\t\telse\n\t\t\tmemset(&(t[n2]),0,16*sizeof(BN_ULONG));\n\t\tbn_mul_comba8(r,a,b);\n\t\tbn_mul_comba8(&(r[n2]),&(a[n]),&(b[n]));\n\t\t}\n\telse\n#endif\n\t\t{\n\t\tp= &(t[n2*2]);\n\t\tif (!zero)\n\t\t\tbn_mul_recursive(&(t[n2]),t,&(t[n]),n,p);\n\t\telse\n\t\t\tmemset(&(t[n2]),0,n2*sizeof(BN_ULONG));\n\t\tbn_mul_recursive(r,a,b,n,p);\n\t\tbn_mul_recursive(&(r[n2]),&(a[n]),&(b[n]),n,p);\n\t\t}\n\tc1=(int)(bn_add_words(t,r,&(r[n2]),n2));\n\tif (neg)\n\t\t{\n\t\tc1-=(int)(bn_sub_words(&(t[n2]),t,&(t[n2]),n2));\n\t\t}\n\telse\n\t\t{\n\t\tc1+=(int)(bn_add_words(&(t[n2]),&(t[n2]),t,n2));\n\t\t}\n\tc1+=(int)(bn_add_words(&(r[n]),&(r[n]),&(t[n2]),n2));\n\tif (c1)\n\t\t{\n\t\tp= &(r[n+n2]);\n\t\tlo= *p;\n\t\tln=(lo+c1)&BN_MASK2;\n\t\t*p=ln;\n\t\tif (ln < (BN_ULONG)c1)\n\t\t\t{\n\t\t\tdo\t{\n\t\t\t\tp++;\n\t\t\t\tlo= *p;\n\t\t\t\tln=(lo+1)&BN_MASK2;\n\t\t\t\t*p=ln;\n\t\t\t\t} while (ln == 0);\n\t\t\t}\n\t\t}\n\t}', 'void bn_mul_comba8(BN_ULONG *r, BN_ULONG *a, BN_ULONG *b)\n\t{\n#ifdef BN_LLONG\n\tBN_ULLONG t;\n#else\n\tBN_ULONG bl,bh;\n#endif\n\tBN_ULONG t1,t2;\n\tBN_ULONG c1,c2,c3;\n\tc1=0;\n\tc2=0;\n\tc3=0;\n\tmul_add_c(a[0],b[0],c1,c2,c3);\n\tr[0]=c1;\n\tc1=0;\n\tmul_add_c(a[0],b[1],c2,c3,c1);\n\tmul_add_c(a[1],b[0],c2,c3,c1);\n\tr[1]=c2;\n\tc2=0;\n\tmul_add_c(a[2],b[0],c3,c1,c2);\n\tmul_add_c(a[1],b[1],c3,c1,c2);\n\tmul_add_c(a[0],b[2],c3,c1,c2);\n\tr[2]=c3;\n\tc3=0;\n\tmul_add_c(a[0],b[3],c1,c2,c3);\n\tmul_add_c(a[1],b[2],c1,c2,c3);\n\tmul_add_c(a[2],b[1],c1,c2,c3);\n\tmul_add_c(a[3],b[0],c1,c2,c3);\n\tr[3]=c1;\n\tc1=0;\n\tmul_add_c(a[4],b[0],c2,c3,c1);\n\tmul_add_c(a[3],b[1],c2,c3,c1);\n\tmul_add_c(a[2],b[2],c2,c3,c1);\n\tmul_add_c(a[1],b[3],c2,c3,c1);\n\tmul_add_c(a[0],b[4],c2,c3,c1);\n\tr[4]=c2;\n\tc2=0;\n\tmul_add_c(a[0],b[5],c3,c1,c2);\n\tmul_add_c(a[1],b[4],c3,c1,c2);\n\tmul_add_c(a[2],b[3],c3,c1,c2);\n\tmul_add_c(a[3],b[2],c3,c1,c2);\n\tmul_add_c(a[4],b[1],c3,c1,c2);\n\tmul_add_c(a[5],b[0],c3,c1,c2);\n\tr[5]=c3;\n\tc3=0;\n\tmul_add_c(a[6],b[0],c1,c2,c3);\n\tmul_add_c(a[5],b[1],c1,c2,c3);\n\tmul_add_c(a[4],b[2],c1,c2,c3);\n\tmul_add_c(a[3],b[3],c1,c2,c3);\n\tmul_add_c(a[2],b[4],c1,c2,c3);\n\tmul_add_c(a[1],b[5],c1,c2,c3);\n\tmul_add_c(a[0],b[6],c1,c2,c3);\n\tr[6]=c1;\n\tc1=0;\n\tmul_add_c(a[0],b[7],c2,c3,c1);\n\tmul_add_c(a[1],b[6],c2,c3,c1);\n\tmul_add_c(a[2],b[5],c2,c3,c1);\n\tmul_add_c(a[3],b[4],c2,c3,c1);\n\tmul_add_c(a[4],b[3],c2,c3,c1);\n\tmul_add_c(a[5],b[2],c2,c3,c1);\n\tmul_add_c(a[6],b[1],c2,c3,c1);\n\tmul_add_c(a[7],b[0],c2,c3,c1);\n\tr[7]=c2;\n\tc2=0;\n\tmul_add_c(a[7],b[1],c3,c1,c2);\n\tmul_add_c(a[6],b[2],c3,c1,c2);\n\tmul_add_c(a[5],b[3],c3,c1,c2);\n\tmul_add_c(a[4],b[4],c3,c1,c2);\n\tmul_add_c(a[3],b[5],c3,c1,c2);\n\tmul_add_c(a[2],b[6],c3,c1,c2);\n\tmul_add_c(a[1],b[7],c3,c1,c2);\n\tr[8]=c3;\n\tc3=0;\n\tmul_add_c(a[2],b[7],c1,c2,c3);\n\tmul_add_c(a[3],b[6],c1,c2,c3);\n\tmul_add_c(a[4],b[5],c1,c2,c3);\n\tmul_add_c(a[5],b[4],c1,c2,c3);\n\tmul_add_c(a[6],b[3],c1,c2,c3);\n\tmul_add_c(a[7],b[2],c1,c2,c3);\n\tr[9]=c1;\n\tc1=0;\n\tmul_add_c(a[7],b[3],c2,c3,c1);\n\tmul_add_c(a[6],b[4],c2,c3,c1);\n\tmul_add_c(a[5],b[5],c2,c3,c1);\n\tmul_add_c(a[4],b[6],c2,c3,c1);\n\tmul_add_c(a[3],b[7],c2,c3,c1);\n\tr[10]=c2;\n\tc2=0;\n\tmul_add_c(a[4],b[7],c3,c1,c2);\n\tmul_add_c(a[5],b[6],c3,c1,c2);\n\tmul_add_c(a[6],b[5],c3,c1,c2);\n\tmul_add_c(a[7],b[4],c3,c1,c2);\n\tr[11]=c3;\n\tc3=0;\n\tmul_add_c(a[7],b[5],c1,c2,c3);\n\tmul_add_c(a[6],b[6],c1,c2,c3);\n\tmul_add_c(a[5],b[7],c1,c2,c3);\n\tr[12]=c1;\n\tc1=0;\n\tmul_add_c(a[6],b[7],c2,c3,c1);\n\tmul_add_c(a[7],b[6],c2,c3,c1);\n\tr[13]=c2;\n\tc2=0;\n\tmul_add_c(a[7],b[7],c3,c1,c2);\n\tr[14]=c3;\n\tr[15]=c1;\n\t}'] |
25,968 | 0 | https://github.com/libav/libav/blob/7ff018c1cb43a5fe5ee2049d325cdd785852067a/libavcodec/bitstream.h/#L237 | static inline void skip_remaining(BitstreamContext *bc, unsigned n)
{
#ifdef BITSTREAM_READER_LE
bc->bits >>= n;
#else
bc->bits <<= n;
#endif
bc->bits_left -= n;
} | ['static int qt_rtp_parse_packet(AVFormatContext *s, PayloadContext *qt,\n AVStream *st, AVPacket *pkt,\n uint32_t *timestamp, const uint8_t *buf,\n int len, uint16_t seq, int flags)\n{\n AVIOContext pb;\n BitstreamContext bc;\n int packing_scheme, has_payload_desc, has_packet_info, alen,\n has_marker_bit = flags & RTP_FLAG_MARKER,\n keyframe;\n if (qt->remaining) {\n int num = qt->pkt.size / qt->bytes_per_frame;\n if (av_new_packet(pkt, qt->bytes_per_frame))\n return AVERROR(ENOMEM);\n pkt->stream_index = st->index;\n pkt->flags = qt->pkt.flags;\n memcpy(pkt->data,\n &qt->pkt.data[(num - qt->remaining) * qt->bytes_per_frame],\n qt->bytes_per_frame);\n if (--qt->remaining == 0) {\n av_freep(&qt->pkt.data);\n qt->pkt.size = 0;\n }\n return qt->remaining > 0;\n }\n bitstream_init(&bc, buf, len << 3);\n ffio_init_context(&pb, buf, len, 0, NULL, NULL, NULL, NULL);\n if (len < 4)\n return AVERROR_INVALIDDATA;\n bitstream_skip(&bc, 4);\n if ((packing_scheme = bitstream_read(&bc, 2)) == 0)\n return AVERROR_INVALIDDATA;\n keyframe = bitstream_read_bit(&bc);\n has_payload_desc = bitstream_read_bit(&bc);\n has_packet_info = bitstream_read_bit(&bc);\n bitstream_skip(&bc, 23);\n if (has_payload_desc) {\n int data_len, pos, is_start, is_finish;\n uint32_t tag;\n pos = bitstream_tell(&bc) >> 3;\n if (pos + 12 > len)\n return AVERROR_INVALIDDATA;\n bitstream_skip(&bc, 2);\n is_start = bitstream_read_bit(&bc);\n is_finish = bitstream_read_bit(&bc);\n if (!is_start || !is_finish) {\n avpriv_request_sample(s, "RTP-X-QT with payload description "\n "split over several packets");\n return AVERROR_PATCHWELCOME;\n }\n bitstream_skip(&bc, 12);\n data_len = bitstream_read(&bc, 16);\n avio_seek(&pb, pos + 4, SEEK_SET);\n tag = avio_rl32(&pb);\n if ((st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO &&\n tag != MKTAG(\'v\',\'i\',\'d\',\'e\')) ||\n (st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO &&\n tag != MKTAG(\'s\',\'o\',\'u\',\'n\')))\n return AVERROR_INVALIDDATA;\n avpriv_set_pts_info(st, 32, 1, avio_rb32(&pb));\n if (pos + data_len > len)\n return AVERROR_INVALIDDATA;\n while (avio_tell(&pb) + 4 < pos + data_len) {\n int tlv_len = avio_rb16(&pb);\n tag = avio_rl16(&pb);\n if (avio_tell(&pb) + tlv_len > pos + data_len)\n return AVERROR_INVALIDDATA;\n#define MKTAG16(a,b) MKTAG(a,b,0,0)\n switch (tag) {\n case MKTAG16(\'s\',\'d\'): {\n MOVStreamContext *msc;\n void *priv_data = st->priv_data;\n int nb_streams = s->nb_streams;\n MOVContext *mc = av_mallocz(sizeof(*mc));\n if (!mc)\n return AVERROR(ENOMEM);\n mc->fc = s;\n st->priv_data = msc = av_mallocz(sizeof(MOVStreamContext));\n if (!msc) {\n av_free(mc);\n st->priv_data = priv_data;\n return AVERROR(ENOMEM);\n }\n s->nb_streams = st->index + 1;\n ff_mov_read_stsd_entries(mc, &pb, 1);\n qt->bytes_per_frame = msc->bytes_per_frame;\n av_free(msc);\n av_free(mc);\n st->priv_data = priv_data;\n s->nb_streams = nb_streams;\n break;\n }\n default:\n avio_skip(&pb, tlv_len);\n break;\n }\n }\n avio_skip(&pb, ((avio_tell(&pb) + 3) & ~3) - avio_tell(&pb));\n } else\n avio_seek(&pb, 4, SEEK_SET);\n if (has_packet_info) {\n avpriv_request_sample(s, "RTP-X-QT with packet-specific info");\n return AVERROR_PATCHWELCOME;\n }\n alen = len - avio_tell(&pb);\n if (alen <= 0)\n return AVERROR_INVALIDDATA;\n switch (packing_scheme) {\n case 3:\n if (qt->pkt.size > 0 && qt->timestamp == *timestamp) {\n int err;\n if ((err = av_reallocp(&qt->pkt.data, qt->pkt.size + alen +\n AV_INPUT_BUFFER_PADDING_SIZE)) < 0) {\n qt->pkt.size = 0;\n return err;\n }\n } else {\n av_freep(&qt->pkt.data);\n av_init_packet(&qt->pkt);\n qt->pkt.data = av_realloc(NULL, alen + AV_INPUT_BUFFER_PADDING_SIZE);\n if (!qt->pkt.data)\n return AVERROR(ENOMEM);\n qt->pkt.size = 0;\n qt->timestamp = *timestamp;\n }\n memcpy(qt->pkt.data + qt->pkt.size, buf + avio_tell(&pb), alen);\n qt->pkt.size += alen;\n if (has_marker_bit) {\n int ret = av_packet_from_data(pkt, qt->pkt.data, qt->pkt.size);\n if (ret < 0)\n return ret;\n qt->pkt.size = 0;\n qt->pkt.data = NULL;\n pkt->flags = keyframe ? AV_PKT_FLAG_KEY : 0;\n pkt->stream_index = st->index;\n memset(pkt->data + pkt->size, 0, AV_INPUT_BUFFER_PADDING_SIZE);\n return 0;\n }\n return AVERROR(EAGAIN);\n case 1:\n if (qt->bytes_per_frame == 0 ||\n alen % qt->bytes_per_frame != 0)\n return AVERROR_INVALIDDATA;\n qt->remaining = (alen / qt->bytes_per_frame) - 1;\n if (av_new_packet(pkt, qt->bytes_per_frame))\n return AVERROR(ENOMEM);\n memcpy(pkt->data, buf + avio_tell(&pb), qt->bytes_per_frame);\n pkt->flags = keyframe ? AV_PKT_FLAG_KEY : 0;\n pkt->stream_index = st->index;\n if (qt->remaining > 0) {\n av_freep(&qt->pkt.data);\n qt->pkt.data = av_realloc(NULL, qt->remaining * qt->bytes_per_frame);\n if (!qt->pkt.data) {\n av_packet_unref(pkt);\n return AVERROR(ENOMEM);\n }\n qt->pkt.size = qt->remaining * qt->bytes_per_frame;\n memcpy(qt->pkt.data,\n buf + avio_tell(&pb) + qt->bytes_per_frame,\n qt->remaining * qt->bytes_per_frame);\n qt->pkt.flags = pkt->flags;\n return 1;\n }\n return 0;\n default:\n avpriv_request_sample(NULL, "RTP-X-QT with packing scheme 2");\n return AVERROR_PATCHWELCOME;\n }\n}', 'static inline void bitstream_skip(BitstreamContext *bc, unsigned n)\n{\n if (n <= bc->bits_left)\n skip_remaining(bc, n);\n else {\n n -= bc->bits_left;\n skip_remaining(bc, bc->bits_left);\n if (n >= 64) {\n unsigned skip = n / 8;\n n -= skip * 8;\n bc->ptr += skip;\n }\n refill_64(bc);\n if (n)\n skip_remaining(bc, n);\n }\n}', 'static inline void skip_remaining(BitstreamContext *bc, unsigned n)\n{\n#ifdef BITSTREAM_READER_LE\n bc->bits >>= n;\n#else\n bc->bits <<= n;\n#endif\n bc->bits_left -= n;\n}', 'static inline unsigned bitstream_read_bit(BitstreamContext *bc)\n{\n if (!bc->bits_left)\n refill_64(bc);\n return get_val(bc, 1);\n}', 'static inline uint64_t get_val(BitstreamContext *bc, unsigned n)\n{\n#ifdef BITSTREAM_READER_LE\n uint64_t ret = bc->bits & ((UINT64_C(1) << n) - 1);\n bc->bits >>= n;\n#else\n uint64_t ret = bc->bits >> (64 - n);\n bc->bits <<= n;\n#endif\n bc->bits_left -= n;\n return ret;\n}'] |
25,969 | 0 | https://github.com/openssl/openssl/blob/6bc62a620e715f7580651ca932eab052aa527886/crypto/bn/bn_lib.c/#L291 | BIGNUM *BN_copy(BIGNUM *a, const BIGNUM *b)
{
bn_check_top(b);
if (a == b)
return a;
if (bn_wexpand(a, b->top) == NULL)
return NULL;
if (b->top > 0)
memcpy(a->d, b->d, sizeof(b->d[0]) * b->top);
a->neg = b->neg;
a->top = b->top;
a->flags |= b->flags & BN_FLG_FIXED_TOP;
bn_check_top(a);
return a;
} | ['int bn_miller_rabin_is_prime(const BIGNUM *w, int iterations, BN_CTX *ctx,\n BN_GENCB *cb, int enhanced, int *status)\n{\n int i, j, a, ret = 0;\n BIGNUM *g, *w1, *w3, *x, *m, *z, *b;\n BN_MONT_CTX *mont = NULL;\n if (!BN_is_odd(w))\n return 0;\n BN_CTX_start(ctx);\n g = BN_CTX_get(ctx);\n w1 = BN_CTX_get(ctx);\n w3 = BN_CTX_get(ctx);\n x = BN_CTX_get(ctx);\n m = BN_CTX_get(ctx);\n z = BN_CTX_get(ctx);\n b = BN_CTX_get(ctx);\n if (!(b != NULL\n && BN_copy(w1, w)\n && BN_sub_word(w1, 1)\n && BN_copy(w3, w)\n && BN_sub_word(w3, 3)))\n goto err;\n if (BN_is_zero(w3) || BN_is_negative(w3))\n goto err;\n a = 1;\n while (!BN_is_bit_set(w1, a))\n a++;\n if (!BN_rshift(m, w1, a))\n goto err;\n mont = BN_MONT_CTX_new();\n if (mont == NULL || !BN_MONT_CTX_set(mont, w, ctx))\n goto err;\n if (iterations == BN_prime_checks)\n iterations = BN_prime_checks_for_size(BN_num_bits(w));\n for (i = 0; i < iterations; ++i) {\n if (!BN_priv_rand_range(b, w3) || !BN_add_word(b, 2))\n goto err;\n if (enhanced) {\n if (!BN_gcd(g, b, w, ctx))\n goto err;\n if (!BN_is_one(g)) {\n *status = BN_PRIMETEST_COMPOSITE_WITH_FACTOR;\n ret = 1;\n goto err;\n }\n }\n if (!BN_mod_exp_mont(z, b, m, w, ctx, mont))\n goto err;\n if (BN_is_one(z) || BN_cmp(z, w1) == 0)\n goto outer_loop;\n for (j = 1; j < a ; ++j) {\n if (!BN_copy(x, z) || !BN_mod_mul(z, x, x, w, ctx))\n goto err;\n if (BN_cmp(z, w1) == 0)\n goto outer_loop;\n if (BN_is_one(z))\n goto composite;\n }\n if (!BN_GENCB_call(cb, 1, i))\n goto err;\n if (!BN_copy(x, z) || !BN_mod_mul(z, x, x, w, ctx))\n goto err;\n if (BN_is_one(z))\n goto composite;\n if (!BN_copy(x, z))\n goto err;\ncomposite:\n if (enhanced) {\n if (!BN_sub_word(x, 1) || !BN_gcd(g, x, w, ctx))\n goto err;\n if (BN_is_one(g))\n *status = BN_PRIMETEST_COMPOSITE_NOT_POWER_OF_PRIME;\n else\n *status = BN_PRIMETEST_COMPOSITE_WITH_FACTOR;\n } else {\n *status = BN_PRIMETEST_COMPOSITE;\n }\n ret = 1;\n goto err;\nouter_loop: ;\n }\n *status = BN_PRIMETEST_PROBABLY_PRIME;\n ret = 1;\nerr:\n BN_clear(g);\n BN_clear(w1);\n BN_clear(w3);\n BN_clear(x);\n BN_clear(m);\n BN_clear(z);\n BN_clear(b);\n BN_CTX_end(ctx);\n BN_MONT_CTX_free(mont);\n return ret;\n}', 'BIGNUM *BN_copy(BIGNUM *a, const BIGNUM *b)\n{\n bn_check_top(b);\n if (a == b)\n return a;\n if (bn_wexpand(a, b->top) == NULL)\n return NULL;\n if (b->top > 0)\n memcpy(a->d, b->d, sizeof(b->d[0]) * b->top);\n a->neg = b->neg;\n a->top = b->top;\n a->flags |= b->flags & BN_FLG_FIXED_TOP;\n bn_check_top(a);\n return a;\n}', 'int BN_gcd(BIGNUM *r, const BIGNUM *in_a, const BIGNUM *in_b, BN_CTX *ctx)\n{\n BIGNUM *a, *b, *t;\n int ret = 0;\n bn_check_top(in_a);\n bn_check_top(in_b);\n BN_CTX_start(ctx);\n a = BN_CTX_get(ctx);\n b = BN_CTX_get(ctx);\n if (b == NULL)\n goto err;\n if (BN_copy(a, in_a) == NULL)\n goto err;\n if (BN_copy(b, in_b) == NULL)\n goto err;\n a->neg = 0;\n b->neg = 0;\n if (BN_cmp(a, b) < 0) {\n t = a;\n a = b;\n b = t;\n }\n t = euclid(a, b);\n if (t == NULL)\n goto err;\n if (BN_copy(r, t) == NULL)\n goto err;\n ret = 1;\n err:\n BN_CTX_end(ctx);\n bn_check_top(r);\n return ret;\n}', 'BIGNUM *bn_wexpand(BIGNUM *a, int words)\n{\n return (words <= a->dmax) ? a : bn_expand2(a, words);\n}'] |
25,970 | 0 | https://github.com/libav/libav/blob/1e8b9738fa70e20967ddb542d2f9d5552fc51ec6/libavcodec/h264.c/#L742 | static void await_references(H264Context *h)
{
const int mb_xy = h->mb_xy;
const int mb_type = h->cur_pic.mb_type[mb_xy];
int refs[2][48];
int nrefs[2] = { 0 };
int ref, list;
memset(refs, -1, sizeof(refs));
if (IS_16X16(mb_type)) {
get_lowest_part_y(h, refs, 0, 16, 0,
IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1), nrefs);
} else if (IS_16X8(mb_type)) {
get_lowest_part_y(h, refs, 0, 8, 0,
IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1), nrefs);
get_lowest_part_y(h, refs, 8, 8, 8,
IS_DIR(mb_type, 1, 0), IS_DIR(mb_type, 1, 1), nrefs);
} else if (IS_8X16(mb_type)) {
get_lowest_part_y(h, refs, 0, 16, 0,
IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1), nrefs);
get_lowest_part_y(h, refs, 4, 16, 0,
IS_DIR(mb_type, 1, 0), IS_DIR(mb_type, 1, 1), nrefs);
} else {
int i;
assert(IS_8X8(mb_type));
for (i = 0; i < 4; i++) {
const int sub_mb_type = h->sub_mb_type[i];
const int n = 4 * i;
int y_offset = (i & 2) << 2;
if (IS_SUB_8X8(sub_mb_type)) {
get_lowest_part_y(h, refs, n, 8, y_offset,
IS_DIR(sub_mb_type, 0, 0),
IS_DIR(sub_mb_type, 0, 1),
nrefs);
} else if (IS_SUB_8X4(sub_mb_type)) {
get_lowest_part_y(h, refs, n, 4, y_offset,
IS_DIR(sub_mb_type, 0, 0),
IS_DIR(sub_mb_type, 0, 1),
nrefs);
get_lowest_part_y(h, refs, n + 2, 4, y_offset + 4,
IS_DIR(sub_mb_type, 0, 0),
IS_DIR(sub_mb_type, 0, 1),
nrefs);
} else if (IS_SUB_4X8(sub_mb_type)) {
get_lowest_part_y(h, refs, n, 8, y_offset,
IS_DIR(sub_mb_type, 0, 0),
IS_DIR(sub_mb_type, 0, 1),
nrefs);
get_lowest_part_y(h, refs, n + 1, 8, y_offset,
IS_DIR(sub_mb_type, 0, 0),
IS_DIR(sub_mb_type, 0, 1),
nrefs);
} else {
int j;
assert(IS_SUB_4X4(sub_mb_type));
for (j = 0; j < 4; j++) {
int sub_y_offset = y_offset + 2 * (j & 2);
get_lowest_part_y(h, refs, n + j, 4, sub_y_offset,
IS_DIR(sub_mb_type, 0, 0),
IS_DIR(sub_mb_type, 0, 1),
nrefs);
}
}
}
}
for (list = h->list_count - 1; list >= 0; list--)
for (ref = 0; ref < 48 && nrefs[list]; ref++) {
int row = refs[list][ref];
if (row >= 0) {
Picture *ref_pic = &h->ref_list[list][ref];
int ref_field = ref_pic->reference - 1;
int ref_field_picture = ref_pic->field_picture;
int pic_height = 16 * h->mb_height >> ref_field_picture;
row <<= MB_MBAFF(h);
nrefs[list]--;
if (!FIELD_PICTURE(h) && ref_field_picture) {
ff_thread_await_progress(&ref_pic->tf,
FFMIN((row >> 1) - !(row & 1),
pic_height - 1),
1);
ff_thread_await_progress(&ref_pic->tf,
FFMIN((row >> 1), pic_height - 1),
0);
} else if (FIELD_PICTURE(h) && !ref_field_picture) {
ff_thread_await_progress(&ref_pic->tf,
FFMIN(row * 2 + ref_field,
pic_height - 1),
0);
} else if (FIELD_PICTURE(h)) {
ff_thread_await_progress(&ref_pic->tf,
FFMIN(row, pic_height - 1),
ref_field);
} else {
ff_thread_await_progress(&ref_pic->tf,
FFMIN(row, pic_height - 1),
0);
}
}
}
} | ['static int svq3_decode_frame(AVCodecContext *avctx, void *data,\n int *got_frame, AVPacket *avpkt)\n{\n const uint8_t *buf = avpkt->data;\n SVQ3Context *s = avctx->priv_data;\n H264Context *h = &s->h;\n int buf_size = avpkt->size;\n int ret, m, i;\n if (buf_size == 0) {\n if (s->next_pic->f.data[0] && !h->low_delay && !s->last_frame_output) {\n ret = av_frame_ref(data, &s->next_pic->f);\n if (ret < 0)\n return ret;\n s->last_frame_output = 1;\n *got_frame = 1;\n }\n return 0;\n }\n init_get_bits(&h->gb, buf, 8 * buf_size);\n h->mb_x = h->mb_y = h->mb_xy = 0;\n if (svq3_decode_slice_header(avctx))\n return -1;\n h->pict_type = h->slice_type;\n if (h->pict_type != AV_PICTURE_TYPE_B)\n FFSWAP(Picture*, s->next_pic, s->last_pic);\n av_frame_unref(&s->cur_pic->f);\n s->cur_pic->f.pict_type = h->pict_type;\n s->cur_pic->f.key_frame = (h->pict_type == AV_PICTURE_TYPE_I);\n ret = get_buffer(avctx, s->cur_pic);\n if (ret < 0)\n return ret;\n h->cur_pic_ptr = s->cur_pic;\n av_frame_unref(&h->cur_pic.f);\n h->cur_pic = *s->cur_pic;\n ret = av_frame_ref(&h->cur_pic.f, &s->cur_pic->f);\n if (ret < 0)\n return ret;\n for (i = 0; i < 16; i++) {\n h->block_offset[i] = (4 * ((scan8[i] - scan8[0]) & 7)) + 4 * h->linesize * ((scan8[i] - scan8[0]) >> 3);\n h->block_offset[48 + i] = (4 * ((scan8[i] - scan8[0]) & 7)) + 8 * h->linesize * ((scan8[i] - scan8[0]) >> 3);\n }\n for (i = 0; i < 16; i++) {\n h->block_offset[16 + i] =\n h->block_offset[32 + i] = (4 * ((scan8[i] - scan8[0]) & 7)) + 4 * h->uvlinesize * ((scan8[i] - scan8[0]) >> 3);\n h->block_offset[48 + 16 + i] =\n h->block_offset[48 + 32 + i] = (4 * ((scan8[i] - scan8[0]) & 7)) + 8 * h->uvlinesize * ((scan8[i] - scan8[0]) >> 3);\n }\n if (h->pict_type != AV_PICTURE_TYPE_I) {\n if (!s->last_pic->f.data[0]) {\n av_log(avctx, AV_LOG_ERROR, "Missing reference frame.\\n");\n ret = get_buffer(avctx, s->last_pic);\n if (ret < 0)\n return ret;\n memset(s->last_pic->f.data[0], 0, avctx->height * s->last_pic->f.linesize[0]);\n memset(s->last_pic->f.data[1], 0x80, (avctx->height / 2) *\n s->last_pic->f.linesize[1]);\n memset(s->last_pic->f.data[2], 0x80, (avctx->height / 2) *\n s->last_pic->f.linesize[2]);\n }\n if (h->pict_type == AV_PICTURE_TYPE_B && !s->next_pic->f.data[0]) {\n av_log(avctx, AV_LOG_ERROR, "Missing reference frame.\\n");\n ret = get_buffer(avctx, s->next_pic);\n if (ret < 0)\n return ret;\n memset(s->next_pic->f.data[0], 0, avctx->height * s->next_pic->f.linesize[0]);\n memset(s->next_pic->f.data[1], 0x80, (avctx->height / 2) *\n s->next_pic->f.linesize[1]);\n memset(s->next_pic->f.data[2], 0x80, (avctx->height / 2) *\n s->next_pic->f.linesize[2]);\n }\n }\n if (avctx->debug & FF_DEBUG_PICT_INFO)\n av_log(h->avctx, AV_LOG_DEBUG,\n "%c hpel:%d, tpel:%d aqp:%d qp:%d, slice_num:%02X\\n",\n av_get_picture_type_char(h->pict_type),\n s->halfpel_flag, s->thirdpel_flag,\n s->adaptive_quant, h->qscale, h->slice_num);\n if (avctx->skip_frame >= AVDISCARD_NONREF && h->pict_type == AV_PICTURE_TYPE_B ||\n avctx->skip_frame >= AVDISCARD_NONKEY && h->pict_type != AV_PICTURE_TYPE_I ||\n avctx->skip_frame >= AVDISCARD_ALL)\n return 0;\n if (s->next_p_frame_damaged) {\n if (h->pict_type == AV_PICTURE_TYPE_B)\n return 0;\n else\n s->next_p_frame_damaged = 0;\n }\n if (h->pict_type == AV_PICTURE_TYPE_B) {\n h->frame_num_offset = h->slice_num - h->prev_frame_num;\n if (h->frame_num_offset < 0)\n h->frame_num_offset += 256;\n if (h->frame_num_offset == 0 ||\n h->frame_num_offset >= h->prev_frame_num_offset) {\n av_log(h->avctx, AV_LOG_ERROR, "error in B-frame picture id\\n");\n return -1;\n }\n } else {\n h->prev_frame_num = h->frame_num;\n h->frame_num = h->slice_num;\n h->prev_frame_num_offset = h->frame_num - h->prev_frame_num;\n if (h->prev_frame_num_offset < 0)\n h->prev_frame_num_offset += 256;\n }\n for (m = 0; m < 2; m++) {\n int i;\n for (i = 0; i < 4; i++) {\n int j;\n for (j = -1; j < 4; j++)\n h->ref_cache[m][scan8[0] + 8 * i + j] = 1;\n if (i < 3)\n h->ref_cache[m][scan8[0] + 8 * i + j] = PART_NOT_AVAILABLE;\n }\n }\n for (h->mb_y = 0; h->mb_y < h->mb_height; h->mb_y++) {\n for (h->mb_x = 0; h->mb_x < h->mb_width; h->mb_x++) {\n unsigned mb_type;\n h->mb_xy = h->mb_x + h->mb_y * h->mb_stride;\n if ((get_bits_count(&h->gb) + 7) >= h->gb.size_in_bits &&\n ((get_bits_count(&h->gb) & 7) == 0 ||\n show_bits(&h->gb, -get_bits_count(&h->gb) & 7) == 0)) {\n skip_bits(&h->gb, s->next_slice_index - get_bits_count(&h->gb));\n h->gb.size_in_bits = 8 * buf_size;\n if (svq3_decode_slice_header(avctx))\n return -1;\n }\n mb_type = svq3_get_ue_golomb(&h->gb);\n if (h->pict_type == AV_PICTURE_TYPE_I)\n mb_type += 8;\n else if (h->pict_type == AV_PICTURE_TYPE_B && mb_type >= 4)\n mb_type += 4;\n if (mb_type > 33 || svq3_decode_mb(s, mb_type)) {\n av_log(h->avctx, AV_LOG_ERROR,\n "error while decoding MB %d %d\\n", h->mb_x, h->mb_y);\n return -1;\n }\n if (mb_type != 0)\n ff_h264_hl_decode_mb(h);\n if (h->pict_type != AV_PICTURE_TYPE_B && !h->low_delay)\n h->cur_pic.mb_type[h->mb_x + h->mb_y * h->mb_stride] =\n (h->pict_type == AV_PICTURE_TYPE_P && mb_type < 8) ? (mb_type - 1) : -1;\n }\n ff_draw_horiz_band(avctx, NULL, s->cur_pic, s->last_pic->f.data[0] ? s->last_pic : NULL,\n 16 * h->mb_y, 16, h->picture_structure, 0, 0,\n h->low_delay, h->mb_height * 16, h->mb_width * 16);\n }\n if (h->pict_type == AV_PICTURE_TYPE_B || h->low_delay)\n ret = av_frame_ref(data, &s->cur_pic->f);\n else if (s->last_pic->f.data[0])\n ret = av_frame_ref(data, &s->last_pic->f);\n if (ret < 0)\n return ret;\n if (s->last_pic->f.data[0] || h->low_delay)\n *got_frame = 1;\n if (h->pict_type != AV_PICTURE_TYPE_B) {\n FFSWAP(Picture*, s->cur_pic, s->next_pic);\n } else {\n av_frame_unref(&s->cur_pic->f);\n }\n return buf_size;\n}', 'void ff_h264_hl_decode_mb(H264Context *h)\n{\n const int mb_xy = h->mb_xy;\n const int mb_type = h->cur_pic.mb_type[mb_xy];\n int is_complex = CONFIG_SMALL || h->is_complex || IS_INTRA_PCM(mb_type) || h->qscale == 0;\n if (CHROMA444(h)) {\n if (is_complex || h->pixel_shift)\n hl_decode_mb_444_complex(h);\n else\n hl_decode_mb_444_simple_8(h);\n } else if (is_complex) {\n hl_decode_mb_complex(h);\n } else if (h->pixel_shift) {\n hl_decode_mb_simple_16(h);\n } else\n hl_decode_mb_simple_8(h);\n}', 'static av_noinline void FUNC(hl_decode_mb_444)(H264Context *h)\n{\n const int mb_x = h->mb_x;\n const int mb_y = h->mb_y;\n const int mb_xy = h->mb_xy;\n const int mb_type = h->cur_pic.mb_type[mb_xy];\n uint8_t *dest[3];\n int linesize;\n int i, j, p;\n int *block_offset = &h->block_offset[0];\n const int transform_bypass = !SIMPLE && (h->qscale == 0 && h->sps.transform_bypass);\n const int plane_count = (SIMPLE || !CONFIG_GRAY || !(h->flags & CODEC_FLAG_GRAY)) ? 3 : 1;\n for (p = 0; p < plane_count; p++) {\n dest[p] = h->cur_pic.f.data[p] +\n ((mb_x << PIXEL_SHIFT) + mb_y * h->linesize) * 16;\n h->vdsp.prefetch(dest[p] + (h->mb_x & 3) * 4 * h->linesize + (64 << PIXEL_SHIFT),\n h->linesize, 4);\n }\n h->list_counts[mb_xy] = h->list_count;\n if (!SIMPLE && MB_FIELD(h)) {\n linesize = h->mb_linesize = h->mb_uvlinesize = h->linesize * 2;\n block_offset = &h->block_offset[48];\n if (mb_y & 1)\n for (p = 0; p < 3; p++)\n dest[p] -= h->linesize * 15;\n if (FRAME_MBAFF(h)) {\n int list;\n for (list = 0; list < h->list_count; list++) {\n if (!USES_LIST(mb_type, list))\n continue;\n if (IS_16X16(mb_type)) {\n int8_t *ref = &h->ref_cache[list][scan8[0]];\n fill_rectangle(ref, 4, 4, 8, (16 + *ref) ^ (h->mb_y & 1), 1);\n } else {\n for (i = 0; i < 16; i += 4) {\n int ref = h->ref_cache[list][scan8[i]];\n if (ref >= 0)\n fill_rectangle(&h->ref_cache[list][scan8[i]], 2, 2,\n 8, (16 + ref) ^ (h->mb_y & 1), 1);\n }\n }\n }\n }\n } else {\n linesize = h->mb_linesize = h->mb_uvlinesize = h->linesize;\n }\n if (!SIMPLE && IS_INTRA_PCM(mb_type)) {\n if (PIXEL_SHIFT) {\n const int bit_depth = h->sps.bit_depth_luma;\n GetBitContext gb;\n init_get_bits(&gb, h->intra_pcm_ptr, 768 * bit_depth);\n for (p = 0; p < plane_count; p++)\n for (i = 0; i < 16; i++) {\n uint16_t *tmp = (uint16_t *)(dest[p] + i * linesize);\n for (j = 0; j < 16; j++)\n tmp[j] = get_bits(&gb, bit_depth);\n }\n } else {\n for (p = 0; p < plane_count; p++)\n for (i = 0; i < 16; i++)\n memcpy(dest[p] + i * linesize,\n h->intra_pcm_ptr + p * 256 + i * 16, 16);\n }\n } else {\n if (IS_INTRA(mb_type)) {\n if (h->deblocking_filter)\n xchg_mb_border(h, dest[0], dest[1], dest[2], linesize,\n linesize, 1, 1, SIMPLE, PIXEL_SHIFT);\n for (p = 0; p < plane_count; p++)\n hl_decode_mb_predict_luma(h, mb_type, 1, SIMPLE,\n transform_bypass, PIXEL_SHIFT,\n block_offset, linesize, dest[p], p);\n if (h->deblocking_filter)\n xchg_mb_border(h, dest[0], dest[1], dest[2], linesize,\n linesize, 0, 1, SIMPLE, PIXEL_SHIFT);\n } else {\n FUNC(hl_motion_444)(h, dest[0], dest[1], dest[2],\n h->me.qpel_put, h->h264chroma.put_h264_chroma_pixels_tab,\n h->me.qpel_avg, h->h264chroma.avg_h264_chroma_pixels_tab,\n h->h264dsp.weight_h264_pixels_tab,\n h->h264dsp.biweight_h264_pixels_tab);\n }\n for (p = 0; p < plane_count; p++)\n hl_decode_mb_idct_luma(h, mb_type, 1, SIMPLE, transform_bypass,\n PIXEL_SHIFT, block_offset, linesize,\n dest[p], p);\n if (h->cbp || IS_INTRA(mb_type)) {\n h->dsp.clear_blocks(h->mb);\n h->dsp.clear_blocks(h->mb + (24 * 16 << PIXEL_SHIFT));\n }\n }\n}', 'static void MCFUNC(hl_motion)(H264Context *h, uint8_t *dest_y,\n uint8_t *dest_cb, uint8_t *dest_cr,\n qpel_mc_func(*qpix_put)[16],\n h264_chroma_mc_func(*chroma_put),\n qpel_mc_func(*qpix_avg)[16],\n h264_chroma_mc_func(*chroma_avg),\n h264_weight_func *weight_op,\n h264_biweight_func *weight_avg)\n{\n const int mb_xy = h->mb_xy;\n const int mb_type = h->cur_pic.mb_type[mb_xy];\n assert(IS_INTER(mb_type));\n if (HAVE_THREADS && (h->avctx->active_thread_type & FF_THREAD_FRAME))\n await_references(h);\n prefetch_motion(h, 0, PIXEL_SHIFT, CHROMA_IDC);\n if (IS_16X16(mb_type)) {\n mc_part(h, 0, 1, 16, 0, dest_y, dest_cb, dest_cr, 0, 0,\n qpix_put[0], chroma_put[0], qpix_avg[0], chroma_avg[0],\n weight_op, weight_avg,\n IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1));\n } else if (IS_16X8(mb_type)) {\n mc_part(h, 0, 0, 8, 8 << PIXEL_SHIFT, dest_y, dest_cb, dest_cr, 0, 0,\n qpix_put[1], chroma_put[0], qpix_avg[1], chroma_avg[0],\n weight_op, weight_avg,\n IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1));\n mc_part(h, 8, 0, 8, 8 << PIXEL_SHIFT, dest_y, dest_cb, dest_cr, 0, 4,\n qpix_put[1], chroma_put[0], qpix_avg[1], chroma_avg[0],\n weight_op, weight_avg,\n IS_DIR(mb_type, 1, 0), IS_DIR(mb_type, 1, 1));\n } else if (IS_8X16(mb_type)) {\n mc_part(h, 0, 0, 16, 8 * h->mb_linesize, dest_y, dest_cb, dest_cr, 0, 0,\n qpix_put[1], chroma_put[1], qpix_avg[1], chroma_avg[1],\n &weight_op[1], &weight_avg[1],\n IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1));\n mc_part(h, 4, 0, 16, 8 * h->mb_linesize, dest_y, dest_cb, dest_cr, 4, 0,\n qpix_put[1], chroma_put[1], qpix_avg[1], chroma_avg[1],\n &weight_op[1], &weight_avg[1],\n IS_DIR(mb_type, 1, 0), IS_DIR(mb_type, 1, 1));\n } else {\n int i;\n assert(IS_8X8(mb_type));\n for (i = 0; i < 4; i++) {\n const int sub_mb_type = h->sub_mb_type[i];\n const int n = 4 * i;\n int x_offset = (i & 1) << 2;\n int y_offset = (i & 2) << 1;\n if (IS_SUB_8X8(sub_mb_type)) {\n mc_part(h, n, 1, 8, 0, dest_y, dest_cb, dest_cr,\n x_offset, y_offset,\n qpix_put[1], chroma_put[1], qpix_avg[1], chroma_avg[1],\n &weight_op[1], &weight_avg[1],\n IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1));\n } else if (IS_SUB_8X4(sub_mb_type)) {\n mc_part(h, n, 0, 4, 4 << PIXEL_SHIFT, dest_y, dest_cb, dest_cr,\n x_offset, y_offset,\n qpix_put[2], chroma_put[1], qpix_avg[2], chroma_avg[1],\n &weight_op[1], &weight_avg[1],\n IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1));\n mc_part(h, n + 2, 0, 4, 4 << PIXEL_SHIFT,\n dest_y, dest_cb, dest_cr, x_offset, y_offset + 2,\n qpix_put[2], chroma_put[1], qpix_avg[2], chroma_avg[1],\n &weight_op[1], &weight_avg[1],\n IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1));\n } else if (IS_SUB_4X8(sub_mb_type)) {\n mc_part(h, n, 0, 8, 4 * h->mb_linesize,\n dest_y, dest_cb, dest_cr, x_offset, y_offset,\n qpix_put[2], chroma_put[2], qpix_avg[2], chroma_avg[2],\n &weight_op[2], &weight_avg[2],\n IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1));\n mc_part(h, n + 1, 0, 8, 4 * h->mb_linesize,\n dest_y, dest_cb, dest_cr, x_offset + 2, y_offset,\n qpix_put[2], chroma_put[2], qpix_avg[2], chroma_avg[2],\n &weight_op[2], &weight_avg[2],\n IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1));\n } else {\n int j;\n assert(IS_SUB_4X4(sub_mb_type));\n for (j = 0; j < 4; j++) {\n int sub_x_offset = x_offset + 2 * (j & 1);\n int sub_y_offset = y_offset + (j & 2);\n mc_part(h, n + j, 1, 4, 0,\n dest_y, dest_cb, dest_cr, sub_x_offset, sub_y_offset,\n qpix_put[2], chroma_put[2], qpix_avg[2], chroma_avg[2],\n &weight_op[2], &weight_avg[2],\n IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1));\n }\n }\n }\n }\n prefetch_motion(h, 1, PIXEL_SHIFT, CHROMA_IDC);\n}', 'static void await_references(H264Context *h)\n{\n const int mb_xy = h->mb_xy;\n const int mb_type = h->cur_pic.mb_type[mb_xy];\n int refs[2][48];\n int nrefs[2] = { 0 };\n int ref, list;\n memset(refs, -1, sizeof(refs));\n if (IS_16X16(mb_type)) {\n get_lowest_part_y(h, refs, 0, 16, 0,\n IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1), nrefs);\n } else if (IS_16X8(mb_type)) {\n get_lowest_part_y(h, refs, 0, 8, 0,\n IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1), nrefs);\n get_lowest_part_y(h, refs, 8, 8, 8,\n IS_DIR(mb_type, 1, 0), IS_DIR(mb_type, 1, 1), nrefs);\n } else if (IS_8X16(mb_type)) {\n get_lowest_part_y(h, refs, 0, 16, 0,\n IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1), nrefs);\n get_lowest_part_y(h, refs, 4, 16, 0,\n IS_DIR(mb_type, 1, 0), IS_DIR(mb_type, 1, 1), nrefs);\n } else {\n int i;\n assert(IS_8X8(mb_type));\n for (i = 0; i < 4; i++) {\n const int sub_mb_type = h->sub_mb_type[i];\n const int n = 4 * i;\n int y_offset = (i & 2) << 2;\n if (IS_SUB_8X8(sub_mb_type)) {\n get_lowest_part_y(h, refs, n, 8, y_offset,\n IS_DIR(sub_mb_type, 0, 0),\n IS_DIR(sub_mb_type, 0, 1),\n nrefs);\n } else if (IS_SUB_8X4(sub_mb_type)) {\n get_lowest_part_y(h, refs, n, 4, y_offset,\n IS_DIR(sub_mb_type, 0, 0),\n IS_DIR(sub_mb_type, 0, 1),\n nrefs);\n get_lowest_part_y(h, refs, n + 2, 4, y_offset + 4,\n IS_DIR(sub_mb_type, 0, 0),\n IS_DIR(sub_mb_type, 0, 1),\n nrefs);\n } else if (IS_SUB_4X8(sub_mb_type)) {\n get_lowest_part_y(h, refs, n, 8, y_offset,\n IS_DIR(sub_mb_type, 0, 0),\n IS_DIR(sub_mb_type, 0, 1),\n nrefs);\n get_lowest_part_y(h, refs, n + 1, 8, y_offset,\n IS_DIR(sub_mb_type, 0, 0),\n IS_DIR(sub_mb_type, 0, 1),\n nrefs);\n } else {\n int j;\n assert(IS_SUB_4X4(sub_mb_type));\n for (j = 0; j < 4; j++) {\n int sub_y_offset = y_offset + 2 * (j & 2);\n get_lowest_part_y(h, refs, n + j, 4, sub_y_offset,\n IS_DIR(sub_mb_type, 0, 0),\n IS_DIR(sub_mb_type, 0, 1),\n nrefs);\n }\n }\n }\n }\n for (list = h->list_count - 1; list >= 0; list--)\n for (ref = 0; ref < 48 && nrefs[list]; ref++) {\n int row = refs[list][ref];\n if (row >= 0) {\n Picture *ref_pic = &h->ref_list[list][ref];\n int ref_field = ref_pic->reference - 1;\n int ref_field_picture = ref_pic->field_picture;\n int pic_height = 16 * h->mb_height >> ref_field_picture;\n row <<= MB_MBAFF(h);\n nrefs[list]--;\n if (!FIELD_PICTURE(h) && ref_field_picture) {\n ff_thread_await_progress(&ref_pic->tf,\n FFMIN((row >> 1) - !(row & 1),\n pic_height - 1),\n 1);\n ff_thread_await_progress(&ref_pic->tf,\n FFMIN((row >> 1), pic_height - 1),\n 0);\n } else if (FIELD_PICTURE(h) && !ref_field_picture) {\n ff_thread_await_progress(&ref_pic->tf,\n FFMIN(row * 2 + ref_field,\n pic_height - 1),\n 0);\n } else if (FIELD_PICTURE(h)) {\n ff_thread_await_progress(&ref_pic->tf,\n FFMIN(row, pic_height - 1),\n ref_field);\n } else {\n ff_thread_await_progress(&ref_pic->tf,\n FFMIN(row, pic_height - 1),\n 0);\n }\n }\n }\n}'] |
25,971 | 0 | https://github.com/openssl/openssl/blob/54d00677f305375eee65a0c9edb5f0980c5f020f/crypto/bn/bn_sqr.c/#L118 | void bn_sqr_normal(BN_ULONG *r, const BN_ULONG *a, int n, BN_ULONG *tmp)
{
int i, j, max;
const BN_ULONG *ap;
BN_ULONG *rp;
max = n * 2;
ap = a;
rp = r;
rp[0] = rp[max - 1] = 0;
rp++;
j = n;
if (--j > 0) {
ap++;
rp[j] = bn_mul_words(rp, ap, j, ap[-1]);
rp += 2;
}
for (i = n - 2; i > 0; i--) {
j--;
ap++;
rp[j] = bn_mul_add_words(rp, ap, j, ap[-1]);
rp += 2;
}
bn_add_words(r, r, r, max);
bn_sqr_words(tmp, a, n);
bn_add_words(r, r, tmp, max);
} | ['int BN_mod_mul_reciprocal(BIGNUM *r, const BIGNUM *x, const BIGNUM *y,\n BN_RECP_CTX *recp, BN_CTX *ctx)\n{\n int ret = 0;\n BIGNUM *a;\n const BIGNUM *ca;\n BN_CTX_start(ctx);\n if ((a = BN_CTX_get(ctx)) == NULL)\n goto err;\n if (y != NULL) {\n if (x == y) {\n if (!BN_sqr(a, x, ctx))\n goto err;\n } else {\n if (!BN_mul(a, x, y, ctx))\n goto err;\n }\n ca = a;\n } else\n ca = x;\n ret = BN_div_recp(NULL, r, ca, recp, ctx);\n err:\n BN_CTX_end(ctx);\n bn_check_top(r);\n return ret;\n}', 'BIGNUM *BN_CTX_get(BN_CTX *ctx)\n{\n BIGNUM *ret;\n CTXDBG_ENTRY("BN_CTX_get", ctx);\n if (ctx->err_stack || ctx->too_many)\n return NULL;\n if ((ret = BN_POOL_get(&ctx->pool, ctx->flags)) == NULL) {\n ctx->too_many = 1;\n BNerr(BN_F_BN_CTX_GET, BN_R_TOO_MANY_TEMPORARY_VARIABLES);\n return NULL;\n }\n BN_zero(ret);\n ret->flags &= (~BN_FLG_CONSTTIME);\n ctx->used++;\n CTXDBG_RET(ctx, ret);\n return ret;\n}', 'int BN_set_word(BIGNUM *a, BN_ULONG w)\n{\n bn_check_top(a);\n if (bn_expand(a, (int)sizeof(BN_ULONG) * 8) == NULL)\n return 0;\n a->neg = 0;\n a->d[0] = w;\n a->top = (w ? 1 : 0);\n a->flags &= ~BN_FLG_FIXED_TOP;\n bn_check_top(a);\n return 1;\n}', 'static ossl_inline BIGNUM *bn_expand(BIGNUM *a, int bits)\n{\n if (bits > (INT_MAX - BN_BITS2 + 1))\n return NULL;\n if (((bits+BN_BITS2-1)/BN_BITS2) <= (a)->dmax)\n return a;\n return bn_expand2((a),(bits+BN_BITS2-1)/BN_BITS2);\n}', 'int BN_sqr(BIGNUM *r, const BIGNUM *a, BN_CTX *ctx)\n{\n int ret = bn_sqr_fixed_top(r, a, ctx);\n bn_correct_top(r);\n bn_check_top(r);\n return ret;\n}', 'int bn_sqr_fixed_top(BIGNUM *r, const BIGNUM *a, BN_CTX *ctx)\n{\n int max, al;\n int ret = 0;\n BIGNUM *tmp, *rr;\n bn_check_top(a);\n al = a->top;\n if (al <= 0) {\n r->top = 0;\n r->neg = 0;\n return 1;\n }\n BN_CTX_start(ctx);\n rr = (a != r) ? r : BN_CTX_get(ctx);\n tmp = BN_CTX_get(ctx);\n if (rr == NULL || tmp == NULL)\n goto err;\n max = 2 * al;\n if (bn_wexpand(rr, max) == NULL)\n goto err;\n if (al == 4) {\n#ifndef BN_SQR_COMBA\n BN_ULONG t[8];\n bn_sqr_normal(rr->d, a->d, 4, t);\n#else\n bn_sqr_comba4(rr->d, a->d);\n#endif\n } else if (al == 8) {\n#ifndef BN_SQR_COMBA\n BN_ULONG t[16];\n bn_sqr_normal(rr->d, a->d, 8, t);\n#else\n bn_sqr_comba8(rr->d, a->d);\n#endif\n } else {\n#if defined(BN_RECURSION)\n if (al < BN_SQR_RECURSIVE_SIZE_NORMAL) {\n BN_ULONG t[BN_SQR_RECURSIVE_SIZE_NORMAL * 2];\n bn_sqr_normal(rr->d, a->d, al, t);\n } else {\n int j, k;\n j = BN_num_bits_word((BN_ULONG)al);\n j = 1 << (j - 1);\n k = j + j;\n if (al == j) {\n if (bn_wexpand(tmp, k * 2) == NULL)\n goto err;\n bn_sqr_recursive(rr->d, a->d, al, tmp->d);\n } else {\n if (bn_wexpand(tmp, max) == NULL)\n goto err;\n bn_sqr_normal(rr->d, a->d, al, tmp->d);\n }\n }\n#else\n if (bn_wexpand(tmp, max) == NULL)\n goto err;\n bn_sqr_normal(rr->d, a->d, al, tmp->d);\n#endif\n }\n rr->neg = 0;\n rr->top = max;\n rr->flags |= BN_FLG_FIXED_TOP;\n if (r != rr && BN_copy(r, rr) == NULL)\n goto err;\n ret = 1;\n err:\n bn_check_top(rr);\n bn_check_top(tmp);\n BN_CTX_end(ctx);\n return ret;\n}', 'void bn_sqr_normal(BN_ULONG *r, const BN_ULONG *a, int n, BN_ULONG *tmp)\n{\n int i, j, max;\n const BN_ULONG *ap;\n BN_ULONG *rp;\n max = n * 2;\n ap = a;\n rp = r;\n rp[0] = rp[max - 1] = 0;\n rp++;\n j = n;\n if (--j > 0) {\n ap++;\n rp[j] = bn_mul_words(rp, ap, j, ap[-1]);\n rp += 2;\n }\n for (i = n - 2; i > 0; i--) {\n j--;\n ap++;\n rp[j] = bn_mul_add_words(rp, ap, j, ap[-1]);\n rp += 2;\n }\n bn_add_words(r, r, r, max);\n bn_sqr_words(tmp, a, n);\n bn_add_words(r, r, tmp, max);\n}'] |
25,972 | 0 | https://github.com/nginx/nginx/blob/db5e48d9b8c49088f278d8a2e6e3e1cf82d441f2/src/http/ngx_http_upstream.c/#L4516 | char *
ngx_http_upstream_bind_set_slot(ngx_conf_t *cf, ngx_command_t *cmd,
void *conf)
{
char *p = conf;
ngx_int_t rc;
ngx_str_t *value;
ngx_http_complex_value_t cv;
ngx_http_upstream_local_t **plocal, *local;
ngx_http_compile_complex_value_t ccv;
plocal = (ngx_http_upstream_local_t **) (p + cmd->offset);
if (*plocal != NGX_CONF_UNSET_PTR) {
return "is duplicate";
}
value = cf->args->elts;
if (ngx_strcmp(value[1].data, "off") == 0) {
*plocal = NULL;
return NGX_CONF_OK;
}
ngx_memzero(&ccv, sizeof(ngx_http_compile_complex_value_t));
ccv.cf = cf;
ccv.value = &value[1];
ccv.complex_value = &cv;
if (ngx_http_compile_complex_value(&ccv) != NGX_OK) {
return NGX_CONF_ERROR;
}
local = ngx_pcalloc(cf->pool, sizeof(ngx_http_upstream_local_t));
if (local == NULL) {
return NGX_CONF_ERROR;
}
*plocal = local;
if (cv.lengths) {
local->value = ngx_palloc(cf->pool, sizeof(ngx_http_complex_value_t));
if (local->value == NULL) {
return NGX_CONF_ERROR;
}
*local->value = cv;
return NGX_CONF_OK;
}
local->addr = ngx_palloc(cf->pool, sizeof(ngx_addr_t));
if (local->addr == NULL) {
return NGX_CONF_ERROR;
}
rc = ngx_parse_addr(cf->pool, local->addr, value[1].data, value[1].len);
switch (rc) {
case NGX_OK:
local->addr->name = value[1];
return NGX_CONF_OK;
case NGX_DECLINED:
ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
"invalid address \"%V\"", &value[1]);
default:
return NGX_CONF_ERROR;
}
} | ['char *\nngx_http_upstream_bind_set_slot(ngx_conf_t *cf, ngx_command_t *cmd,\n void *conf)\n{\n char *p = conf;\n ngx_int_t rc;\n ngx_str_t *value;\n ngx_http_complex_value_t cv;\n ngx_http_upstream_local_t **plocal, *local;\n ngx_http_compile_complex_value_t ccv;\n plocal = (ngx_http_upstream_local_t **) (p + cmd->offset);\n if (*plocal != NGX_CONF_UNSET_PTR) {\n return "is duplicate";\n }\n value = cf->args->elts;\n if (ngx_strcmp(value[1].data, "off") == 0) {\n *plocal = NULL;\n return NGX_CONF_OK;\n }\n ngx_memzero(&ccv, sizeof(ngx_http_compile_complex_value_t));\n ccv.cf = cf;\n ccv.value = &value[1];\n ccv.complex_value = &cv;\n if (ngx_http_compile_complex_value(&ccv) != NGX_OK) {\n return NGX_CONF_ERROR;\n }\n local = ngx_pcalloc(cf->pool, sizeof(ngx_http_upstream_local_t));\n if (local == NULL) {\n return NGX_CONF_ERROR;\n }\n *plocal = local;\n if (cv.lengths) {\n local->value = ngx_palloc(cf->pool, sizeof(ngx_http_complex_value_t));\n if (local->value == NULL) {\n return NGX_CONF_ERROR;\n }\n *local->value = cv;\n return NGX_CONF_OK;\n }\n local->addr = ngx_palloc(cf->pool, sizeof(ngx_addr_t));\n if (local->addr == NULL) {\n return NGX_CONF_ERROR;\n }\n rc = ngx_parse_addr(cf->pool, local->addr, value[1].data, value[1].len);\n switch (rc) {\n case NGX_OK:\n local->addr->name = value[1];\n return NGX_CONF_OK;\n case NGX_DECLINED:\n ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,\n "invalid address \\"%V\\"", &value[1]);\n default:\n return NGX_CONF_ERROR;\n }\n}'] |
25,973 | 0 | https://github.com/libav/libav/blob/e5b0fc170f85b00f7dd0ac514918fb5c95253d39/libavcodec/bitstream.h/#L237 | static inline void skip_remaining(BitstreamContext *bc, unsigned n)
{
#ifdef BITSTREAM_READER_LE
bc->bits >>= n;
#else
bc->bits <<= n;
#endif
bc->bits_left -= n;
} | ['static int on2avc_decode_band_scales(On2AVCContext *c, BitstreamContext *bc)\n{\n int w, w2, b, scale, first = 1;\n int band_off = 0;\n for (w = 0; w < c->num_windows; w++) {\n if (!c->grouping[w]) {\n memcpy(c->band_scales + band_off,\n c->band_scales + band_off - c->num_bands,\n c->num_bands * sizeof(*c->band_scales));\n band_off += c->num_bands;\n continue;\n }\n for (b = 0; b < c->num_bands; b++) {\n if (!c->band_type[band_off]) {\n int all_zero = 1;\n for (w2 = w + 1; w2 < c->num_windows; w2++) {\n if (c->grouping[w2])\n break;\n if (c->band_type[w2 * c->num_bands + b]) {\n all_zero = 0;\n break;\n }\n }\n if (all_zero) {\n c->band_scales[band_off++] = 0;\n continue;\n }\n }\n if (first) {\n scale = bitstream_read(bc, 7);\n first = 0;\n } else {\n scale += bitstream_read_vlc(bc, c->scale_diff.table, 9, 3) - 60;\n }\n if (scale < 0 || scale > 127) {\n av_log(c->avctx, AV_LOG_ERROR, "Invalid scale value %d\\n",\n scale);\n return AVERROR_INVALIDDATA;\n }\n c->band_scales[band_off++] = c->scale_tab[scale];\n }\n }\n return 0;\n}', 'static inline int bitstream_read_vlc(BitstreamContext *bc, VLC_TYPE (*table)[2],\n int bits, int max_depth)\n{\n int nb_bits;\n unsigned idx = bitstream_peek(bc, bits);\n int code = table[idx][0];\n int n = table[idx][1];\n if (max_depth > 1 && n < 0) {\n skip_remaining(bc, bits);\n code = set_idx(bc, code, &n, &nb_bits, table);\n if (max_depth > 2 && n < 0) {\n skip_remaining(bc, nb_bits);\n code = set_idx(bc, code, &n, &nb_bits, table);\n }\n }\n skip_remaining(bc, n);\n return code;\n}', 'static inline void skip_remaining(BitstreamContext *bc, unsigned n)\n{\n#ifdef BITSTREAM_READER_LE\n bc->bits >>= n;\n#else\n bc->bits <<= n;\n#endif\n bc->bits_left -= n;\n}'] |
25,974 | 0 | https://github.com/openssl/openssl/blob/64c3da230f557e85422f76c9e3c45fac9b16466c/crypto/bn/bn_print.c/#L197 | int BN_hex2bn(BIGNUM **bn, const char *a)
{
BIGNUM *ret=NULL;
BN_ULONG l=0;
int neg=0,h,m,i,j,k,c;
int num;
if ((a == NULL) || (*a == '\0')) return(0);
if (*a == '-') { neg=1; a++; }
for (i=0; isxdigit((unsigned char) a[i]); i++)
;
num=i+neg;
if (bn == NULL) return(num);
if (*bn == NULL)
{
if ((ret=BN_new()) == NULL) return(0);
}
else
{
ret= *bn;
BN_zero(ret);
}
if (bn_expand(ret,i*4) == NULL) goto err;
j=i;
m=0;
h=0;
while (j > 0)
{
m=((BN_BYTES*2) <= j)?(BN_BYTES*2):j;
l=0;
for (;;)
{
c=a[j-m];
if ((c >= '0') && (c <= '9')) k=c-'0';
else if ((c >= 'a') && (c <= 'f')) k=c-'a'+10;
else if ((c >= 'A') && (c <= 'F')) k=c-'A'+10;
else k=0;
l=(l<<4)|k;
if (--m <= 0)
{
ret->d[h++]=l;
break;
}
}
j-=(BN_BYTES*2);
}
ret->top=h;
bn_fix_top(ret);
ret->neg=neg;
*bn=ret;
return(num);
err:
if (*bn == NULL) BN_free(ret);
return(0);
} | ['EC_GROUP *EC_GROUP_new_by_name(int name)\n\t{\n\tEC_GROUP *ret = NULL;\n\tswitch (name)\n\t\t{\n\tcase EC_GROUP_NO_CURVE:\n\t\treturn NULL;\n\tcase EC_GROUP_SECG_PRIME_112R1:\n\tcase EC_GROUP_WTLS_6:\n\t\tret = ec_group_new_GFp_from_hex(_EC_GROUP_SECG_PRIME_112R1);\n\t\tbreak;\n\tcase EC_GROUP_SECG_PRIME_112R2:\n\t\tret = ec_group_new_GFp_from_hex(_EC_GROUP_SECG_PRIME_112R2);\n\t\tbreak;\n\tcase EC_GROUP_WTLS_8:\n\t\tret = ec_group_new_GFp_from_hex(_EC_GROUP_WTLS_8);\n\t\tbreak;\n\tcase EC_GROUP_SECG_PRIME_128R1:\n\t\tret = ec_group_new_GFp_from_hex(_EC_GROUP_SECG_PRIME_128R1);\n\t\tbreak;\n\tcase EC_GROUP_SECG_PRIME_128R2:\n\t\tret = ec_group_new_GFp_from_hex(_EC_GROUP_SECG_PRIME_128R2);\n\t\tbreak;\n\tcase EC_GROUP_SECG_PRIME_160K1:\n\t\tret = ec_group_new_GFp_from_hex(_EC_GROUP_SECG_PRIME_160K1);\n\t\tbreak;\n\tcase EC_GROUP_SECG_PRIME_160R1:\n\t\tret = ec_group_new_GFp_from_hex(_EC_GROUP_SECG_PRIME_160R1);\n\t\tbreak;\n\tcase EC_GROUP_SECG_PRIME_160R2:\n\tcase EC_GROUP_WTLS_7:\n\t\tret = ec_group_new_GFp_from_hex(_EC_GROUP_SECG_PRIME_160R2);\n\t\tbreak;\n\tcase EC_GROUP_WTLS_9:\n\t\tret = ec_group_new_GFp_from_hex(_EC_GROUP_WTLS_9);\n\t\tbreak;\n\tcase EC_GROUP_SECG_PRIME_192K1:\n\t\tret = ec_group_new_GFp_from_hex(_EC_GROUP_SECG_PRIME_192K1);\n\t\tbreak;\n\tcase EC_GROUP_X9_62_PRIME_192V1:\n\t\tret = ec_group_new_GFp_from_hex(_EC_GROUP_NIST_PRIME_192);\n\t\tbreak;\n\tcase EC_GROUP_X9_62_PRIME_192V2:\n\t\tret = ec_group_new_GFp_from_hex(_EC_GROUP_X9_62_PRIME_192V2);\n\t\tbreak;\n\tcase EC_GROUP_X9_62_PRIME_192V3:\n\t\tret = ec_group_new_GFp_from_hex(_EC_GROUP_X9_62_PRIME_192V3);\n\t\tbreak;\n\tcase EC_GROUP_SECG_PRIME_224K1:\n\t\tret = ec_group_new_GFp_from_hex(_EC_GROUP_SECG_PRIME_224K1);\n\t\tbreak;\n\tcase EC_GROUP_SECG_PRIME_224R1:\n\t\tret = ec_group_new_GFp_from_hex(_EC_GROUP_NIST_PRIME_224);\n\t\tbreak;\n\tcase EC_GROUP_WTLS_12:\n\t\tret = ec_group_new_GFp_from_hex(_EC_GROUP_WTLS_12);\n\t\tbreak;\n\tcase EC_GROUP_X9_62_PRIME_239V1:\n\t\tret = ec_group_new_GFp_from_hex(_EC_GROUP_X9_62_PRIME_239V1);\n\t\tbreak;\n\tcase EC_GROUP_X9_62_PRIME_239V2:\n\t\tret = ec_group_new_GFp_from_hex(_EC_GROUP_X9_62_PRIME_239V2);\n\t\tbreak;\n\tcase EC_GROUP_X9_62_PRIME_239V3:\n\t\tret = ec_group_new_GFp_from_hex(_EC_GROUP_X9_62_PRIME_239V3);\n\t\tbreak;\n\tcase EC_GROUP_SECG_PRIME_256K1:\n\t\tret = ec_group_new_GFp_from_hex(_EC_GROUP_SECG_PRIME_256K1);\n\t\tbreak;\n\tcase EC_GROUP_SECG_PRIME_256R1:\n\t\tret = ec_group_new_GFp_from_hex(_EC_GROUP_X9_62_PRIME_256V1);\n\t\tbreak;\n\tcase EC_GROUP_SECG_PRIME_384R1:\n\t\tret = ec_group_new_GFp_from_hex(_EC_GROUP_NIST_PRIME_384);\n\t\tbreak;\n\tcase EC_GROUP_SECG_PRIME_521R1:\n\t\tret = ec_group_new_GFp_from_hex(_EC_GROUP_NIST_PRIME_521);\n\t\tbreak;\n\tcase EC_GROUP_SECG_CHAR2_113R1:\n\tcase EC_GROUP_WTLS_4:\n\t\tret = ec_group_new_GF2m_from_hex(_EC_GROUP_SECG_CHAR2_113R1);\n\t\tbreak;\n\tcase EC_GROUP_SECG_CHAR2_113R2:\n\t\tret = ec_group_new_GF2m_from_hex(_EC_GROUP_SECG_CHAR2_113R2);\n\t\tbreak;\n\tcase EC_GROUP_WTLS_1:\n\t\tret = ec_group_new_GF2m_from_hex(_EC_GROUP_WTLS_1);\n\t\tbreak;\n\tcase EC_GROUP_SECG_CHAR2_131R1:\n\t\tret = ec_group_new_GF2m_from_hex(_EC_GROUP_SECG_CHAR2_131R1);\n\t\tbreak;\n\tcase EC_GROUP_SECG_CHAR2_131R2:\n\t\tret = ec_group_new_GF2m_from_hex(_EC_GROUP_SECG_CHAR2_131R2);\n\t\tbreak;\n\tcase EC_GROUP_SECG_CHAR2_163K1:\n\tcase EC_GROUP_WTLS_3:\n\t\tret = ec_group_new_GF2m_from_hex(_EC_GROUP_SECG_CHAR2_163K1);\n\t\tbreak;\n\tcase EC_GROUP_SECG_CHAR2_163R1:\n\t\tret = ec_group_new_GF2m_from_hex(_EC_GROUP_SECG_CHAR2_163R1);\n\t\tbreak;\n\tcase EC_GROUP_SECG_CHAR2_163R2:\n\t\tret = ec_group_new_GF2m_from_hex(_EC_GROUP_SECG_CHAR2_163R2);\n\t\tbreak;\n\tcase EC_GROUP_X9_62_CHAR2_163V1:\n\tcase EC_GROUP_WTLS_5:\n\t\tret = ec_group_new_GF2m_from_hex(_EC_GROUP_X9_62_CHAR2_163V1);\n\t\tbreak;\n\tcase EC_GROUP_X9_62_CHAR2_163V2:\n\t\tret = ec_group_new_GF2m_from_hex(_EC_GROUP_X9_62_CHAR2_163V2);\n\t\tbreak;\n\tcase EC_GROUP_X9_62_CHAR2_163V3:\n\t\tret = ec_group_new_GF2m_from_hex(_EC_GROUP_X9_62_CHAR2_163V3);\n\t\tbreak;\n\tcase EC_GROUP_X9_62_CHAR2_176V1:\n\t\tret = ec_group_new_GF2m_from_hex(_EC_GROUP_X9_62_CHAR2_176V1);\n\t\tbreak;\n\tcase EC_GROUP_X9_62_CHAR2_191V1:\n\t\tret = ec_group_new_GF2m_from_hex(_EC_GROUP_X9_62_CHAR2_191V1);\n\t\tbreak;\n\tcase EC_GROUP_X9_62_CHAR2_191V2:\n\t\tret = ec_group_new_GF2m_from_hex(_EC_GROUP_X9_62_CHAR2_191V2);\n\t\tbreak;\n\tcase EC_GROUP_X9_62_CHAR2_191V3:\n\t\tret = ec_group_new_GF2m_from_hex(_EC_GROUP_X9_62_CHAR2_191V3);\n\t\tbreak;\n\tcase EC_GROUP_SECG_CHAR2_193R1:\n\t\tret = ec_group_new_GF2m_from_hex(_EC_GROUP_SECG_CHAR2_193R1);\n\t\tbreak;\n\tcase EC_GROUP_SECG_CHAR2_193R2:\n\t\tret = ec_group_new_GF2m_from_hex(_EC_GROUP_SECG_CHAR2_193R2);\n\t\tbreak;\n\tcase EC_GROUP_X9_62_CHAR2_208W1:\n\t\tret = ec_group_new_GF2m_from_hex(_EC_GROUP_X9_62_CHAR2_208W1);\n\t\tbreak;\n\tcase EC_GROUP_SECG_CHAR2_233K1:\n\tcase EC_GROUP_WTLS_10:\n\t\tret = ec_group_new_GF2m_from_hex(_EC_GROUP_SECG_CHAR2_233K1);\n\t\tbreak;\n\tcase EC_GROUP_SECG_CHAR2_233R1:\n\tcase EC_GROUP_WTLS_11:\n\t\tret = ec_group_new_GF2m_from_hex(_EC_GROUP_SECG_CHAR2_233R1);\n\t\tbreak;\n\tcase EC_GROUP_SECG_CHAR2_239K1:\n\t\tret = ec_group_new_GF2m_from_hex(_EC_GROUP_SECG_CHAR2_239K1);\n\t\tbreak;\n\tcase EC_GROUP_X9_62_CHAR2_239V1:\n\t\tret = ec_group_new_GF2m_from_hex(_EC_GROUP_X9_62_CHAR2_239V1);\n\t\tbreak;\n\tcase EC_GROUP_X9_62_CHAR2_239V2:\n\t\tret = ec_group_new_GF2m_from_hex(_EC_GROUP_X9_62_CHAR2_239V2);\n\t\tbreak;\n\tcase EC_GROUP_X9_62_CHAR2_239V3:\n\t\tret = ec_group_new_GF2m_from_hex(_EC_GROUP_X9_62_CHAR2_239V3);\n\t\tbreak;\n\tcase EC_GROUP_X9_62_CHAR2_272W1:\n\t\tret = ec_group_new_GF2m_from_hex(_EC_GROUP_X9_62_CHAR2_272W1);\n\t\tbreak;\n\tcase EC_GROUP_SECG_CHAR2_283K1:\n\t\tret = ec_group_new_GF2m_from_hex(_EC_GROUP_SECG_CHAR2_283K1);\n\t\tbreak;\n\tcase EC_GROUP_SECG_CHAR2_283R1:\n\t\tret = ec_group_new_GF2m_from_hex(_EC_GROUP_SECG_CHAR2_283R1);\n\t\tbreak;\n\tcase EC_GROUP_X9_62_CHAR2_304W1:\n\t\tret = ec_group_new_GF2m_from_hex(_EC_GROUP_X9_62_CHAR2_304W1);\n\t\tbreak;\n\tcase EC_GROUP_X9_62_CHAR2_359V1:\n\t\tret = ec_group_new_GF2m_from_hex(_EC_GROUP_X9_62_CHAR2_359V1);\n\t\tbreak;\n\tcase EC_GROUP_X9_62_CHAR2_368W1:\n\t\tret = ec_group_new_GF2m_from_hex(_EC_GROUP_X9_62_CHAR2_368W1);\n\t\tbreak;\n\tcase EC_GROUP_SECG_CHAR2_409K1:\n\t\tret = ec_group_new_GF2m_from_hex(_EC_GROUP_SECG_CHAR2_409K1);\n\t\tbreak;\n\tcase EC_GROUP_SECG_CHAR2_409R1:\n\t\tret = ec_group_new_GF2m_from_hex(_EC_GROUP_SECG_CHAR2_409R1);\n\t\tbreak;\n\tcase EC_GROUP_X9_62_CHAR2_431R1:\n\t\tret = ec_group_new_GF2m_from_hex(_EC_GROUP_X9_62_CHAR2_431R1);\n\t\tbreak;\n\tcase EC_GROUP_SECG_CHAR2_571K1:\n\t\tret = ec_group_new_GF2m_from_hex(_EC_GROUP_SECG_CHAR2_571K1);\n\t\tbreak;\n\tcase EC_GROUP_SECG_CHAR2_571R1:\n\t\tret = ec_group_new_GF2m_from_hex(_EC_GROUP_SECG_CHAR2_571R1);\n\t\tbreak;\n\t\t}\n\tif (ret == NULL)\n\t\t{\n\t\tECerr(EC_F_EC_GROUP_NEW_BY_NAME, EC_R_UNKNOWN_GROUP);\n\t\treturn NULL;\n\t\t}\n\tEC_GROUP_set_nid(ret, name);\n\treturn ret;\n\t}', 'static EC_GROUP *ec_group_new_GFp_from_hex(const char *prime_in,\n\t const char *a_in, const char *b_in,\n\t const char *x_in, const int y_bit, const char *order_in, const BN_ULONG cofac_in)\n\t{\n\tEC_GROUP *group=NULL;\n\tEC_POINT *P=NULL;\n\tBN_CTX\t *ctx=NULL;\n\tBIGNUM \t *prime=NULL,*a=NULL,*b=NULL,*x=NULL,*order=NULL;\n\tint\t ok=0;\n\tif ((ctx = BN_CTX_new()) == NULL) goto bn_err;\n\tif ((prime = BN_new()) == NULL || (a = BN_new()) == NULL || (b = BN_new()) == NULL ||\n\t\t(x = BN_new()) == NULL || (order = BN_new()) == NULL) goto bn_err;\n\tif (!BN_hex2bn(&prime, prime_in)) goto bn_err;\n\tif (!BN_hex2bn(&a, a_in)) goto bn_err;\n\tif (!BN_hex2bn(&b, b_in)) goto bn_err;\n\tif ((group = EC_GROUP_new_curve_GFp(prime, a, b, ctx)) == NULL) goto err;\n\tif ((P = EC_POINT_new(group)) == NULL) goto err;\n\tif (!BN_hex2bn(&x, x_in)) goto bn_err;\n\tif (!EC_POINT_set_compressed_coordinates_GFp(group, P, x, y_bit, ctx)) goto err;\n\tif (!BN_hex2bn(&order, order_in)) goto bn_err;\n\tif (!BN_set_word(x, cofac_in)) goto bn_err;\n\tif (!EC_GROUP_set_generator(group, P, order, x)) goto err;\n\tok=1;\nbn_err:\n\tif (!ok)\n\t\tECerr(EC_F_EC_GROUP_NEW_GFP_FROM_HEX, ERR_R_BN_LIB);\nerr:\n\tif (!ok)\n\t\t{\n\t\tEC_GROUP_free(group);\n\t\tgroup = NULL;\n\t\t}\n\tif (P) \t EC_POINT_free(P);\n\tif (ctx) BN_CTX_free(ctx);\n\tif (prime) BN_free(prime);\n\tif (a) BN_free(a);\n\tif (b) BN_free(b);\n\tif (order) BN_free(order);\n\tif (x) BN_free(x);\n\treturn(group);\n\t}', "int BN_hex2bn(BIGNUM **bn, const char *a)\n\t{\n\tBIGNUM *ret=NULL;\n\tBN_ULONG l=0;\n\tint neg=0,h,m,i,j,k,c;\n\tint num;\n\tif ((a == NULL) || (*a == '\\0')) return(0);\n\tif (*a == '-') { neg=1; a++; }\n\tfor (i=0; isxdigit((unsigned char) a[i]); i++)\n\t\t;\n\tnum=i+neg;\n\tif (bn == NULL) return(num);\n\tif (*bn == NULL)\n\t\t{\n\t\tif ((ret=BN_new()) == NULL) return(0);\n\t\t}\n\telse\n\t\t{\n\t\tret= *bn;\n\t\tBN_zero(ret);\n\t\t}\n\tif (bn_expand(ret,i*4) == NULL) goto err;\n\tj=i;\n\tm=0;\n\th=0;\n\twhile (j > 0)\n\t\t{\n\t\tm=((BN_BYTES*2) <= j)?(BN_BYTES*2):j;\n\t\tl=0;\n\t\tfor (;;)\n\t\t\t{\n\t\t\tc=a[j-m];\n\t\t\tif ((c >= '0') && (c <= '9')) k=c-'0';\n\t\t\telse if ((c >= 'a') && (c <= 'f')) k=c-'a'+10;\n\t\t\telse if ((c >= 'A') && (c <= 'F')) k=c-'A'+10;\n\t\t\telse k=0;\n\t\t\tl=(l<<4)|k;\n\t\t\tif (--m <= 0)\n\t\t\t\t{\n\t\t\t\tret->d[h++]=l;\n\t\t\t\tbreak;\n\t\t\t\t}\n\t\t\t}\n\t\tj-=(BN_BYTES*2);\n\t\t}\n\tret->top=h;\n\tbn_fix_top(ret);\n\tret->neg=neg;\n\t*bn=ret;\n\treturn(num);\nerr:\n\tif (*bn == NULL) BN_free(ret);\n\treturn(0);\n\t}"] |
25,975 | 0 | https://github.com/openssl/openssl/blob/7ef8206859f9a52f48e817c023c744fe00e82c5d/crypto/x509/x509_req.c/#L105 | X509_REQ *X509_to_X509_REQ(X509 *x, EVP_PKEY *pkey, const EVP_MD *md)
{
X509_REQ *ret;
X509_REQ_INFO *ri;
int i;
EVP_PKEY *pktmp;
ret=X509_REQ_new();
if (ret == NULL)
{
X509err(X509_F_X509_TO_X509_REQ,ERR_R_MALLOC_FAILURE);
goto err;
}
ri=ret->req_info;
ri->version->length=1;
ri->version->data=(unsigned char *)OPENSSL_malloc(1);
if (ri->version->data == NULL) goto err;
ri->version->data[0]=0;
if (!X509_REQ_set_subject_name(ret,X509_get_subject_name(x)))
goto err;
pktmp = X509_get_pubkey(x);
i=X509_REQ_set_pubkey(ret,pktmp);
EVP_PKEY_free(pktmp);
if (!i) goto err;
if (pkey != NULL)
{
if (!X509_REQ_sign(ret,pkey,md))
goto err;
}
return(ret);
err:
X509_REQ_free(ret);
return(NULL);
} | ['X509_REQ *X509_to_X509_REQ(X509 *x, EVP_PKEY *pkey, const EVP_MD *md)\n\t{\n\tX509_REQ *ret;\n\tX509_REQ_INFO *ri;\n\tint i;\n\tEVP_PKEY *pktmp;\n\tret=X509_REQ_new();\n\tif (ret == NULL)\n\t\t{\n\t\tX509err(X509_F_X509_TO_X509_REQ,ERR_R_MALLOC_FAILURE);\n\t\tgoto err;\n\t\t}\n\tri=ret->req_info;\n\tri->version->length=1;\n\tri->version->data=(unsigned char *)OPENSSL_malloc(1);\n\tif (ri->version->data == NULL) goto err;\n\tri->version->data[0]=0;\n\tif (!X509_REQ_set_subject_name(ret,X509_get_subject_name(x)))\n\t\tgoto err;\n\tpktmp = X509_get_pubkey(x);\n\ti=X509_REQ_set_pubkey(ret,pktmp);\n\tEVP_PKEY_free(pktmp);\n\tif (!i) goto err;\n\tif (pkey != NULL)\n\t\t{\n\t\tif (!X509_REQ_sign(ret,pkey,md))\n\t\t\tgoto err;\n\t\t}\n\treturn(ret);\nerr:\n\tX509_REQ_free(ret);\n\treturn(NULL);\n\t}', 'void ERR_put_error(int lib, int func, int reason, const char *file,\n\t int line)\n\t{\n\tERR_STATE *es;\n#ifdef _OSD_POSIX\n\tif (strncmp(file,"*POSIX(", sizeof("*POSIX(")-1) == 0) {\n\t\tchar *end;\n\t\tfile += sizeof("*POSIX(")-1;\n\t\tend = &file[strlen(file)-1];\n\t\tif (*end == \')\')\n\t\t\t*end = \'\\0\';\n\t\tif ((end = strrchr(file, \'/\')) != NULL)\n\t\t\tfile = &end[1];\n\t}\n#endif\n\tes=ERR_get_state();\n\tes->top=(es->top+1)%ERR_NUM_ERRORS;\n\tif (es->top == es->bottom)\n\t\tes->bottom=(es->bottom+1)%ERR_NUM_ERRORS;\n\tes->err_buffer[es->top]=ERR_PACK(lib,func,reason);\n\tes->err_file[es->top]=file;\n\tes->err_line[es->top]=line;\n\terr_clear_data(es,es->top);\n\t}', 'void X509_REQ_free(X509_REQ *a)\n\t{\n\tint i;\n\tif (a == NULL) return;\n\ti=CRYPTO_add(&a->references,-1,CRYPTO_LOCK_X509_REQ);\n#ifdef REF_PRINT\n\tREF_PRINT("X509_REQ",a);\n#endif\n\tif (i > 0) return;\n#ifdef REF_CHECK\n\tif (i < 0)\n\t\t{\n\t\tfprintf(stderr,"X509_REQ_free, bad reference count\\n");\n\t\tabort();\n\t\t}\n#endif\n\tX509_REQ_INFO_free(a->req_info);\n\tX509_ALGOR_free(a->sig_alg);\n\tM_ASN1_BIT_STRING_free(a->signature);\n\tOPENSSL_free(a);\n\t}', 'int CRYPTO_add_lock(int *pointer, int amount, int type, const char *file,\n\t int line)\n\t{\n\tint ret = 0;\n\tif (add_lock_callback != NULL)\n\t\t{\n#ifdef LOCK_DEBUG\n\t\tint before= *pointer;\n#endif\n\t\tret=add_lock_callback(pointer,amount,type,file,line);\n#ifdef LOCK_DEBUG\n\t\tfprintf(stderr,"ladd:%08lx:%2d+%2d->%2d %-18s %s:%d\\n",\n\t\t\tCRYPTO_thread_id(),\n\t\t\tbefore,amount,ret,\n\t\t\tCRYPTO_get_lock_name(type),\n\t\t\tfile,line);\n#endif\n\t\t*pointer=ret;\n\t\t}\n\telse\n\t\t{\n\t\tCRYPTO_lock(CRYPTO_LOCK|CRYPTO_WRITE,type,file,line);\n\t\tret= *pointer+amount;\n#ifdef LOCK_DEBUG\n\t\tfprintf(stderr,"ladd:%08lx:%2d+%2d->%2d %-18s %s:%d\\n",\n\t\t\tCRYPTO_thread_id(),\n\t\t\t*pointer,amount,ret,\n\t\t\tCRYPTO_get_lock_name(type),\n\t\t\tfile,line);\n#endif\n\t\t*pointer=ret;\n\t\tCRYPTO_lock(CRYPTO_UNLOCK|CRYPTO_WRITE,type,file,line);\n\t\t}\n\treturn(ret);\n\t}'] |
25,976 | 0 | https://github.com/openssl/openssl/blob/fa9bb6201e1d16ba8ccab938833d140ef81a7f73/crypto/mem.c/#L241 | void CRYPTO_free(void *str, const char *file, int line)
{
if (free_impl != NULL && free_impl != &CRYPTO_free) {
free_impl(str, file, line);
return;
}
#ifndef OPENSSL_NO_CRYPTO_MDEBUG
if (call_malloc_debug) {
CRYPTO_mem_debug_free(str, 0, file, line);
free(str);
CRYPTO_mem_debug_free(str, 1, file, line);
} else {
free(str);
}
#else
free(str);
#endif
} | ['static int create_digest(BIO *input, char *digest, const EVP_MD *md,\n unsigned char **md_value)\n{\n int md_value_len;\n md_value_len = EVP_MD_size(md);\n if (md_value_len < 0)\n return 0;\n if (input) {\n EVP_MD_CTX *md_ctx = EVP_MD_CTX_new();\n unsigned char buffer[4096];\n int length;\n if (md_ctx == NULL)\n return 0;\n *md_value = app_malloc(md_value_len, "digest buffer");\n EVP_DigestInit(md_ctx, md);\n while ((length = BIO_read(input, buffer, sizeof(buffer))) > 0) {\n EVP_DigestUpdate(md_ctx, buffer, length);\n }\n if (!EVP_DigestFinal(md_ctx, *md_value, NULL)) {\n EVP_MD_CTX_free(md_ctx);\n return 0;\n }\n EVP_MD_CTX_free(md_ctx);\n } else {\n long digest_len;\n *md_value = string_to_hex(digest, &digest_len);\n if (!*md_value || md_value_len != digest_len) {\n OPENSSL_free(*md_value);\n *md_value = NULL;\n BIO_printf(bio_err, "bad digest, %d bytes "\n "must be specified\\n", md_value_len);\n return 0;\n }\n }\n return md_value_len;\n}', 'int EVP_DigestFinal(EVP_MD_CTX *ctx, unsigned char *md, unsigned int *size)\n{\n int ret;\n ret = EVP_DigestFinal_ex(ctx, md, size);\n EVP_MD_CTX_reset(ctx);\n return ret;\n}', 'int EVP_MD_CTX_reset(EVP_MD_CTX *ctx)\n{\n if (ctx == NULL)\n return 1;\n if (ctx->digest && ctx->digest->cleanup\n && !EVP_MD_CTX_test_flags(ctx, EVP_MD_CTX_FLAG_CLEANED))\n ctx->digest->cleanup(ctx);\n if (ctx->digest && ctx->digest->ctx_size && ctx->md_data\n && !EVP_MD_CTX_test_flags(ctx, EVP_MD_CTX_FLAG_REUSE)) {\n OPENSSL_clear_free(ctx->md_data, ctx->digest->ctx_size);\n }\n EVP_PKEY_CTX_free(ctx->pctx);\n#ifndef OPENSSL_NO_ENGINE\n if (ctx->engine)\n ENGINE_finish(ctx->engine);\n#endif\n memset(ctx, 0, sizeof(*ctx));\n return 1;\n}', 'void EVP_PKEY_CTX_free(EVP_PKEY_CTX *ctx)\n{\n if (ctx == NULL)\n return;\n if (ctx->pmeth && ctx->pmeth->cleanup)\n ctx->pmeth->cleanup(ctx);\n EVP_PKEY_free(ctx->pkey);\n EVP_PKEY_free(ctx->peerkey);\n#ifndef OPENSSL_NO_ENGINE\n if (ctx->engine)\n ENGINE_finish(ctx->engine);\n#endif\n OPENSSL_free(ctx);\n}', 'void EVP_PKEY_free(EVP_PKEY *x)\n{\n int i;\n if (x == NULL)\n return;\n i = CRYPTO_add(&x->references, -1, CRYPTO_LOCK_EVP_PKEY);\n REF_PRINT_COUNT("EVP_PKEY", x);\n if (i > 0)\n return;\n REF_ASSERT_ISNT(i < 0);\n EVP_PKEY_free_it(x);\n sk_X509_ATTRIBUTE_pop_free(x->attributes, X509_ATTRIBUTE_free);\n OPENSSL_free(x);\n}', 'void sk_pop_free(_STACK *st, void (*func) (void *))\n{\n int i;\n if (st == NULL)\n return;\n for (i = 0; i < st->num; i++)\n if (st->data[i] != NULL)\n func(st->data[i]);\n sk_free(st);\n}', 'void sk_free(_STACK *st)\n{\n if (st == NULL)\n return;\n OPENSSL_free(st->data);\n OPENSSL_free(st);\n}', 'void CRYPTO_free(void *str, const char *file, int line)\n{\n if (free_impl != NULL && free_impl != &CRYPTO_free) {\n free_impl(str, file, line);\n return;\n }\n#ifndef OPENSSL_NO_CRYPTO_MDEBUG\n if (call_malloc_debug) {\n CRYPTO_mem_debug_free(str, 0, file, line);\n free(str);\n CRYPTO_mem_debug_free(str, 1, file, line);\n } else {\n free(str);\n }\n#else\n free(str);\n#endif\n}'] |
25,977 | 0 | https://github.com/openssl/openssl/blob/a8ca496ddb532d7f7dc356fd2b026697388d2384/crypto/lhash/lhash.c/#L139 | void *OPENSSL_LH_delete(OPENSSL_LHASH *lh, const void *data)
{
unsigned long hash;
OPENSSL_LH_NODE *nn, **rn;
void *ret;
lh->error = 0;
rn = getrn(lh, data, &hash);
if (*rn == NULL) {
lh->num_no_delete++;
return NULL;
} else {
nn = *rn;
*rn = nn->next;
ret = nn->data;
OPENSSL_free(nn);
lh->num_delete++;
}
lh->num_items--;
if ((lh->num_nodes > MIN_NODES) &&
(lh->down_load >= (lh->num_items * LH_LOAD_MULT / lh->num_nodes)))
contract(lh);
return ret;
} | ['static int test_srp(int tst)\n{\n char *userid = "test", *password = "password", *tstsrpfile;\n SSL_CTX *cctx = NULL, *sctx = NULL;\n SSL *clientssl = NULL, *serverssl = NULL;\n int ret, testresult = 0;\n vbase = SRP_VBASE_new(NULL);\n if (!TEST_ptr(vbase))\n goto end;\n if (tst == 0 || tst == 1) {\n if (!TEST_true(create_new_vbase(userid, password)))\n goto end;\n } else {\n if (tst == 4 || tst == 5) {\n if (!TEST_true(create_new_vfile(userid, password, tmpfilename)))\n goto end;\n tstsrpfile = tmpfilename;\n } else {\n tstsrpfile = srpvfile;\n }\n if (!TEST_int_eq(SRP_VBASE_init(vbase, tstsrpfile), SRP_NO_ERROR))\n goto end;\n }\n if (!TEST_true(create_ssl_ctx_pair(TLS_server_method(), TLS_client_method(),\n TLS1_VERSION, TLS_MAX_VERSION,\n &sctx, &cctx, cert, privkey)))\n goto end;\n if (!TEST_int_gt(SSL_CTX_set_srp_username_callback(sctx, ssl_srp_cb), 0)\n || !TEST_true(SSL_CTX_set_cipher_list(cctx, "SRP-AES-128-CBC-SHA"))\n || !TEST_true(SSL_CTX_set_max_proto_version(sctx, TLS1_2_VERSION))\n || !TEST_true(SSL_CTX_set_max_proto_version(cctx, TLS1_2_VERSION))\n || !TEST_int_gt(SSL_CTX_set_srp_username(cctx, userid), 0))\n goto end;\n if (tst % 2 == 1) {\n if (!TEST_int_gt(SSL_CTX_set_srp_password(cctx, "badpass"), 0))\n goto end;\n } else {\n if (!TEST_int_gt(SSL_CTX_set_srp_password(cctx, password), 0))\n goto end;\n }\n if (!TEST_true(create_ssl_objects(sctx, cctx, &serverssl, &clientssl,\n NULL, NULL)))\n goto end;\n ret = create_ssl_connection(serverssl, clientssl, SSL_ERROR_NONE);\n if (ret) {\n if (!TEST_true(tst % 2 == 0))\n goto end;\n } else {\n if (!TEST_true(tst % 2 == 1))\n goto end;\n }\n testresult = 1;\n end:\n SRP_VBASE_free(vbase);\n vbase = NULL;\n SSL_free(serverssl);\n SSL_free(clientssl);\n SSL_CTX_free(sctx);\n SSL_CTX_free(cctx);\n return testresult;\n}', 'int create_ssl_objects(SSL_CTX *serverctx, SSL_CTX *clientctx, SSL **sssl,\n SSL **cssl, BIO *s_to_c_fbio, BIO *c_to_s_fbio)\n{\n SSL *serverssl = NULL, *clientssl = NULL;\n BIO *s_to_c_bio = NULL, *c_to_s_bio = NULL;\n if (*sssl != NULL)\n serverssl = *sssl;\n else if (!TEST_ptr(serverssl = SSL_new(serverctx)))\n goto error;\n if (*cssl != NULL)\n clientssl = *cssl;\n else if (!TEST_ptr(clientssl = SSL_new(clientctx)))\n goto error;\n if (SSL_is_dtls(clientssl)) {\n if (!TEST_ptr(s_to_c_bio = BIO_new(bio_s_mempacket_test()))\n || !TEST_ptr(c_to_s_bio = BIO_new(bio_s_mempacket_test())))\n goto error;\n } else {\n if (!TEST_ptr(s_to_c_bio = BIO_new(BIO_s_mem()))\n || !TEST_ptr(c_to_s_bio = BIO_new(BIO_s_mem())))\n goto error;\n }\n if (s_to_c_fbio != NULL\n && !TEST_ptr(s_to_c_bio = BIO_push(s_to_c_fbio, s_to_c_bio)))\n goto error;\n if (c_to_s_fbio != NULL\n && !TEST_ptr(c_to_s_bio = BIO_push(c_to_s_fbio, c_to_s_bio)))\n goto error;\n BIO_set_mem_eof_return(s_to_c_bio, -1);\n BIO_set_mem_eof_return(c_to_s_bio, -1);\n SSL_set_bio(serverssl, c_to_s_bio, s_to_c_bio);\n BIO_up_ref(s_to_c_bio);\n BIO_up_ref(c_to_s_bio);\n SSL_set_bio(clientssl, s_to_c_bio, c_to_s_bio);\n *sssl = serverssl;\n *cssl = clientssl;\n return 1;\n error:\n SSL_free(serverssl);\n SSL_free(clientssl);\n BIO_free(s_to_c_bio);\n BIO_free(c_to_s_bio);\n BIO_free(s_to_c_fbio);\n BIO_free(c_to_s_fbio);\n return 0;\n}', 'SSL *SSL_new(SSL_CTX *ctx)\n{\n SSL *s;\n if (ctx == NULL) {\n SSLerr(SSL_F_SSL_NEW, SSL_R_NULL_SSL_CTX);\n return NULL;\n }\n if (ctx->method == NULL) {\n SSLerr(SSL_F_SSL_NEW, SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION);\n return NULL;\n }\n s = OPENSSL_zalloc(sizeof(*s));\n if (s == NULL)\n goto err;\n s->references = 1;\n s->lock = CRYPTO_THREAD_lock_new();\n if (s->lock == NULL) {\n OPENSSL_free(s);\n s = NULL;\n goto err;\n }\n RECORD_LAYER_init(&s->rlayer, s);\n s->options = ctx->options;\n s->dane.flags = ctx->dane.flags;\n s->min_proto_version = ctx->min_proto_version;\n s->max_proto_version = ctx->max_proto_version;\n s->mode = ctx->mode;\n s->max_cert_list = ctx->max_cert_list;\n s->max_early_data = ctx->max_early_data;\n s->tls13_ciphersuites = sk_SSL_CIPHER_dup(ctx->tls13_ciphersuites);\n if (s->tls13_ciphersuites == NULL)\n goto err;\n s->cert = ssl_cert_dup(ctx->cert);\n if (s->cert == NULL)\n goto err;\n RECORD_LAYER_set_read_ahead(&s->rlayer, ctx->read_ahead);\n s->msg_callback = ctx->msg_callback;\n s->msg_callback_arg = ctx->msg_callback_arg;\n s->verify_mode = ctx->verify_mode;\n s->not_resumable_session_cb = ctx->not_resumable_session_cb;\n s->record_padding_cb = ctx->record_padding_cb;\n s->record_padding_arg = ctx->record_padding_arg;\n s->block_padding = ctx->block_padding;\n s->sid_ctx_length = ctx->sid_ctx_length;\n if (!ossl_assert(s->sid_ctx_length <= sizeof(s->sid_ctx)))\n goto err;\n memcpy(&s->sid_ctx, &ctx->sid_ctx, sizeof(s->sid_ctx));\n s->verify_callback = ctx->default_verify_callback;\n s->generate_session_id = ctx->generate_session_id;\n s->param = X509_VERIFY_PARAM_new();\n if (s->param == NULL)\n goto err;\n X509_VERIFY_PARAM_inherit(s->param, ctx->param);\n s->quiet_shutdown = ctx->quiet_shutdown;\n s->ext.max_fragment_len_mode = ctx->ext.max_fragment_len_mode;\n s->max_send_fragment = ctx->max_send_fragment;\n s->split_send_fragment = ctx->split_send_fragment;\n s->max_pipelines = ctx->max_pipelines;\n if (s->max_pipelines > 1)\n RECORD_LAYER_set_read_ahead(&s->rlayer, 1);\n if (ctx->default_read_buf_len > 0)\n SSL_set_default_read_buffer_len(s, ctx->default_read_buf_len);\n SSL_CTX_up_ref(ctx);\n s->ctx = ctx;\n s->ext.debug_cb = 0;\n s->ext.debug_arg = NULL;\n s->ext.ticket_expected = 0;\n s->ext.status_type = ctx->ext.status_type;\n s->ext.status_expected = 0;\n s->ext.ocsp.ids = NULL;\n s->ext.ocsp.exts = NULL;\n s->ext.ocsp.resp = NULL;\n s->ext.ocsp.resp_len = 0;\n SSL_CTX_up_ref(ctx);\n s->session_ctx = ctx;\n#ifndef OPENSSL_NO_EC\n if (ctx->ext.ecpointformats) {\n s->ext.ecpointformats =\n OPENSSL_memdup(ctx->ext.ecpointformats,\n ctx->ext.ecpointformats_len);\n if (!s->ext.ecpointformats)\n goto err;\n s->ext.ecpointformats_len =\n ctx->ext.ecpointformats_len;\n }\n if (ctx->ext.supportedgroups) {\n s->ext.supportedgroups =\n OPENSSL_memdup(ctx->ext.supportedgroups,\n ctx->ext.supportedgroups_len\n * sizeof(*ctx->ext.supportedgroups));\n if (!s->ext.supportedgroups)\n goto err;\n s->ext.supportedgroups_len = ctx->ext.supportedgroups_len;\n }\n#endif\n#ifndef OPENSSL_NO_NEXTPROTONEG\n s->ext.npn = NULL;\n#endif\n if (s->ctx->ext.alpn) {\n s->ext.alpn = OPENSSL_malloc(s->ctx->ext.alpn_len);\n if (s->ext.alpn == NULL)\n goto err;\n memcpy(s->ext.alpn, s->ctx->ext.alpn, s->ctx->ext.alpn_len);\n s->ext.alpn_len = s->ctx->ext.alpn_len;\n }\n s->verified_chain = NULL;\n s->verify_result = X509_V_OK;\n s->default_passwd_callback = ctx->default_passwd_callback;\n s->default_passwd_callback_userdata = ctx->default_passwd_callback_userdata;\n s->method = ctx->method;\n s->key_update = SSL_KEY_UPDATE_NONE;\n if (!s->method->ssl_new(s))\n goto err;\n s->server = (ctx->method->ssl_accept == ssl_undefined_function) ? 0 : 1;\n if (!SSL_clear(s))\n goto err;\n if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data))\n goto err;\n#ifndef OPENSSL_NO_PSK\n s->psk_client_callback = ctx->psk_client_callback;\n s->psk_server_callback = ctx->psk_server_callback;\n#endif\n s->psk_find_session_cb = ctx->psk_find_session_cb;\n s->psk_use_session_cb = ctx->psk_use_session_cb;\n s->job = NULL;\n#ifndef OPENSSL_NO_CT\n if (!SSL_set_ct_validation_callback(s, ctx->ct_validation_callback,\n ctx->ct_validation_callback_arg))\n goto err;\n#endif\n return s;\n err:\n SSL_free(s);\n SSLerr(SSL_F_SSL_NEW, ERR_R_MALLOC_FAILURE);\n return NULL;\n}', 'void SSL_free(SSL *s)\n{\n int i;\n if (s == NULL)\n return;\n CRYPTO_DOWN_REF(&s->references, &i, s->lock);\n REF_PRINT_COUNT("SSL", s);\n if (i > 0)\n return;\n REF_ASSERT_ISNT(i < 0);\n X509_VERIFY_PARAM_free(s->param);\n dane_final(&s->dane);\n CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);\n ssl_free_wbio_buffer(s);\n BIO_free_all(s->wbio);\n BIO_free_all(s->rbio);\n BUF_MEM_free(s->init_buf);\n sk_SSL_CIPHER_free(s->cipher_list);\n sk_SSL_CIPHER_free(s->cipher_list_by_id);\n sk_SSL_CIPHER_free(s->tls13_ciphersuites);\n if (s->session != NULL) {\n ssl_clear_bad_session(s);\n SSL_SESSION_free(s->session);\n }\n SSL_SESSION_free(s->psksession);\n OPENSSL_free(s->psksession_id);\n clear_ciphers(s);\n ssl_cert_free(s->cert);\n OPENSSL_free(s->ext.hostname);\n SSL_CTX_free(s->session_ctx);\n#ifndef OPENSSL_NO_EC\n OPENSSL_free(s->ext.ecpointformats);\n OPENSSL_free(s->ext.supportedgroups);\n#endif\n sk_X509_EXTENSION_pop_free(s->ext.ocsp.exts, X509_EXTENSION_free);\n#ifndef OPENSSL_NO_OCSP\n sk_OCSP_RESPID_pop_free(s->ext.ocsp.ids, OCSP_RESPID_free);\n#endif\n#ifndef OPENSSL_NO_CT\n SCT_LIST_free(s->scts);\n OPENSSL_free(s->ext.scts);\n#endif\n OPENSSL_free(s->ext.ocsp.resp);\n OPENSSL_free(s->ext.alpn);\n OPENSSL_free(s->ext.tls13_cookie);\n OPENSSL_free(s->clienthello);\n OPENSSL_free(s->pha_context);\n EVP_MD_CTX_free(s->pha_dgst);\n sk_X509_NAME_pop_free(s->ca_names, X509_NAME_free);\n sk_X509_pop_free(s->verified_chain, X509_free);\n if (s->method != NULL)\n s->method->ssl_free(s);\n RECORD_LAYER_release(&s->rlayer);\n SSL_CTX_free(s->ctx);\n ASYNC_WAIT_CTX_free(s->waitctx);\n#if !defined(OPENSSL_NO_NEXTPROTONEG)\n OPENSSL_free(s->ext.npn);\n#endif\n#ifndef OPENSSL_NO_SRTP\n sk_SRTP_PROTECTION_PROFILE_free(s->srtp_profiles);\n#endif\n CRYPTO_THREAD_lock_free(s->lock);\n OPENSSL_free(s);\n}', 'int ssl_clear_bad_session(SSL *s)\n{\n if ((s->session != NULL) &&\n !(s->shutdown & SSL_SENT_SHUTDOWN) &&\n !(SSL_in_init(s) || SSL_in_before(s))) {\n SSL_CTX_remove_session(s->session_ctx, s->session);\n return 1;\n } else\n return 0;\n}', 'int SSL_CTX_remove_session(SSL_CTX *ctx, SSL_SESSION *c)\n{\n return remove_session_lock(ctx, c, 1);\n}', 'static int remove_session_lock(SSL_CTX *ctx, SSL_SESSION *c, int lck)\n{\n SSL_SESSION *r;\n int ret = 0;\n if ((c != NULL) && (c->session_id_length != 0)) {\n if (lck)\n CRYPTO_THREAD_write_lock(ctx->lock);\n if ((r = lh_SSL_SESSION_retrieve(ctx->sessions, c)) != NULL) {\n ret = 1;\n r = lh_SSL_SESSION_delete(ctx->sessions, r);\n SSL_SESSION_list_remove(ctx, r);\n }\n c->not_resumable = 1;\n if (lck)\n CRYPTO_THREAD_unlock(ctx->lock);\n if (ret)\n SSL_SESSION_free(r);\n if (ctx->remove_session_cb != NULL)\n ctx->remove_session_cb(ctx, c);\n } else\n ret = 0;\n return ret;\n}', 'DEFINE_LHASH_OF(SSL_SESSION)', 'void *OPENSSL_LH_delete(OPENSSL_LHASH *lh, const void *data)\n{\n unsigned long hash;\n OPENSSL_LH_NODE *nn, **rn;\n void *ret;\n lh->error = 0;\n rn = getrn(lh, data, &hash);\n if (*rn == NULL) {\n lh->num_no_delete++;\n return NULL;\n } else {\n nn = *rn;\n *rn = nn->next;\n ret = nn->data;\n OPENSSL_free(nn);\n lh->num_delete++;\n }\n lh->num_items--;\n if ((lh->num_nodes > MIN_NODES) &&\n (lh->down_load >= (lh->num_items * LH_LOAD_MULT / lh->num_nodes)))\n contract(lh);\n return ret;\n}'] |
25,978 | 0 | https://github.com/openssl/openssl/blob/ddc6a5c8f5900959bdbdfee79e1625a3f7808acd/crypto/bn/bn_rand.c/#L83 | static int bnrand(BNRAND_FLAG flag, BIGNUM *rnd, int bits, int top, int bottom)
{
unsigned char *buf = NULL;
int b, ret = 0, bit, bytes, mask;
if (bits == 0) {
if (top != BN_RAND_TOP_ANY || bottom != BN_RAND_BOTTOM_ANY)
goto toosmall;
BN_zero(rnd);
return 1;
}
if (bits < 0 || (bits == 1 && top > 0))
goto toosmall;
bytes = (bits + 7) / 8;
bit = (bits - 1) % 8;
mask = 0xff << (bit + 1);
buf = OPENSSL_malloc(bytes);
if (buf == NULL) {
BNerr(BN_F_BNRAND, ERR_R_MALLOC_FAILURE);
goto err;
}
b = flag == NORMAL ? RAND_bytes(buf, bytes) : RAND_priv_bytes(buf, bytes);
if (b <= 0)
goto err;
if (flag == TESTING) {
int i;
unsigned char c;
for (i = 0; i < bytes; i++) {
if (RAND_bytes(&c, 1) <= 0)
goto err;
if (c >= 128 && i > 0)
buf[i] = buf[i - 1];
else if (c < 42)
buf[i] = 0;
else if (c < 84)
buf[i] = 255;
}
}
if (top >= 0) {
if (top) {
if (bit == 0) {
buf[0] = 1;
buf[1] |= 0x80;
} else {
buf[0] |= (3 << (bit - 1));
}
} else {
buf[0] |= (1 << bit);
}
}
buf[0] &= ~mask;
if (bottom)
buf[bytes - 1] |= 1;
if (!BN_bin2bn(buf, bytes, rnd))
goto err;
ret = 1;
err:
OPENSSL_clear_free(buf, bytes);
bn_check_top(rnd);
return (ret);
toosmall:
BNerr(BN_F_BNRAND, BN_R_BITS_TOO_SMALL);
return 0;
} | ['static int bnrand_range(BNRAND_FLAG flag, BIGNUM *r, const BIGNUM *range)\n{\n int b, n;\n int count = 100;\n if (range->neg || BN_is_zero(range)) {\n BNerr(BN_F_BNRAND_RANGE, BN_R_INVALID_RANGE);\n return 0;\n }\n n = BN_num_bits(range);\n if (n == 1)\n BN_zero(r);\n else if (!BN_is_bit_set(range, n - 2) && !BN_is_bit_set(range, n - 3)) {\n do {\n b = flag == NORMAL\n ? BN_rand(r, n + 1, BN_RAND_TOP_ANY, BN_RAND_BOTTOM_ANY)\n : BN_priv_rand(r, n + 1, BN_RAND_TOP_ANY, BN_RAND_BOTTOM_ANY);\n if (!b)\n return 0;\n if (BN_cmp(r, range) >= 0) {\n if (!BN_sub(r, r, range))\n return 0;\n if (BN_cmp(r, range) >= 0)\n if (!BN_sub(r, r, range))\n return 0;\n }\n if (!--count) {\n BNerr(BN_F_BNRAND_RANGE, BN_R_TOO_MANY_ITERATIONS);\n return 0;\n }\n }\n while (BN_cmp(r, range) >= 0);\n } else {\n do {\n if (!BN_rand(r, n, BN_RAND_TOP_ANY, BN_RAND_BOTTOM_ANY))\n return 0;\n if (!--count) {\n BNerr(BN_F_BNRAND_RANGE, BN_R_TOO_MANY_ITERATIONS);\n return 0;\n }\n }\n while (BN_cmp(r, range) >= 0);\n }\n bn_check_top(r);\n return 1;\n}', 'int BN_num_bits(const BIGNUM *a)\n{\n int i = a->top - 1;\n bn_check_top(a);\n if (BN_is_zero(a))\n return 0;\n return ((i * BN_BITS2) + BN_num_bits_word(a->d[i]));\n}', 'int BN_rand(BIGNUM *rnd, int bits, int top, int bottom)\n{\n return bnrand(NORMAL, rnd, bits, top, bottom);\n}', 'static int bnrand(BNRAND_FLAG flag, BIGNUM *rnd, int bits, int top, int bottom)\n{\n unsigned char *buf = NULL;\n int b, ret = 0, bit, bytes, mask;\n if (bits == 0) {\n if (top != BN_RAND_TOP_ANY || bottom != BN_RAND_BOTTOM_ANY)\n goto toosmall;\n BN_zero(rnd);\n return 1;\n }\n if (bits < 0 || (bits == 1 && top > 0))\n goto toosmall;\n bytes = (bits + 7) / 8;\n bit = (bits - 1) % 8;\n mask = 0xff << (bit + 1);\n buf = OPENSSL_malloc(bytes);\n if (buf == NULL) {\n BNerr(BN_F_BNRAND, ERR_R_MALLOC_FAILURE);\n goto err;\n }\n b = flag == NORMAL ? RAND_bytes(buf, bytes) : RAND_priv_bytes(buf, bytes);\n if (b <= 0)\n goto err;\n if (flag == TESTING) {\n int i;\n unsigned char c;\n for (i = 0; i < bytes; i++) {\n if (RAND_bytes(&c, 1) <= 0)\n goto err;\n if (c >= 128 && i > 0)\n buf[i] = buf[i - 1];\n else if (c < 42)\n buf[i] = 0;\n else if (c < 84)\n buf[i] = 255;\n }\n }\n if (top >= 0) {\n if (top) {\n if (bit == 0) {\n buf[0] = 1;\n buf[1] |= 0x80;\n } else {\n buf[0] |= (3 << (bit - 1));\n }\n } else {\n buf[0] |= (1 << bit);\n }\n }\n buf[0] &= ~mask;\n if (bottom)\n buf[bytes - 1] |= 1;\n if (!BN_bin2bn(buf, bytes, rnd))\n goto err;\n ret = 1;\n err:\n OPENSSL_clear_free(buf, bytes);\n bn_check_top(rnd);\n return (ret);\ntoosmall:\n BNerr(BN_F_BNRAND, BN_R_BITS_TOO_SMALL);\n return 0;\n}', 'void *CRYPTO_malloc(size_t num, const char *file, int line)\n{\n void *ret = NULL;\n if (malloc_impl != NULL && malloc_impl != CRYPTO_malloc)\n return malloc_impl(num, file, line);\n if (num == 0)\n return NULL;\n FAILTEST();\n allow_customize = 0;\n#ifndef OPENSSL_NO_CRYPTO_MDEBUG\n if (call_malloc_debug) {\n CRYPTO_mem_debug_malloc(NULL, num, 0, file, line);\n ret = malloc(num);\n CRYPTO_mem_debug_malloc(ret, num, 1, file, line);\n } else {\n ret = malloc(num);\n }\n#else\n osslargused(file); osslargused(line);\n ret = malloc(num);\n#endif\n return ret;\n}'] |
25,979 | 0 | https://github.com/openssl/openssl/blob/d4f63f1c39c3908cd81fda07448144bafb9aba4a/crypto/kdf/tls1_prf.c/#L341 | static int tls1_prf_alg(const EVP_MD *md,
const unsigned char *sec, size_t slen,
const unsigned char *seed, size_t seed_len,
unsigned char *out, size_t olen)
{
if (EVP_MD_type(md) == NID_md5_sha1) {
size_t i;
unsigned char *tmp;
size_t L_S1 = (slen + 1) / 2;
size_t L_S2 = L_S1;
if (!tls1_prf_P_hash(EVP_md5(), sec, L_S1,
seed, seed_len, out, olen))
return 0;
if ((tmp = OPENSSL_malloc(olen)) == NULL) {
KDFerr(KDF_F_TLS1_PRF_ALG, ERR_R_MALLOC_FAILURE);
return 0;
}
if (!tls1_prf_P_hash(EVP_sha1(), sec + slen - L_S2, L_S2,
seed, seed_len, tmp, olen)) {
OPENSSL_clear_free(tmp, olen);
return 0;
}
for (i = 0; i < olen; i++)
out[i] ^= tmp[i];
OPENSSL_clear_free(tmp, olen);
return 1;
}
if (!tls1_prf_P_hash(md, sec, slen, seed, seed_len, out, olen))
return 0;
return 1;
} | ['static int tls1_prf_alg(const EVP_MD *md,\n const unsigned char *sec, size_t slen,\n const unsigned char *seed, size_t seed_len,\n unsigned char *out, size_t olen)\n{\n if (EVP_MD_type(md) == NID_md5_sha1) {\n size_t i;\n unsigned char *tmp;\n size_t L_S1 = (slen + 1) / 2;\n size_t L_S2 = L_S1;\n if (!tls1_prf_P_hash(EVP_md5(), sec, L_S1,\n seed, seed_len, out, olen))\n return 0;\n if ((tmp = OPENSSL_malloc(olen)) == NULL) {\n KDFerr(KDF_F_TLS1_PRF_ALG, ERR_R_MALLOC_FAILURE);\n return 0;\n }\n if (!tls1_prf_P_hash(EVP_sha1(), sec + slen - L_S2, L_S2,\n seed, seed_len, tmp, olen)) {\n OPENSSL_clear_free(tmp, olen);\n return 0;\n }\n for (i = 0; i < olen; i++)\n out[i] ^= tmp[i];\n OPENSSL_clear_free(tmp, olen);\n return 1;\n }\n if (!tls1_prf_P_hash(md, sec, slen, seed, seed_len, out, olen))\n return 0;\n return 1;\n}', 'int EVP_MD_type(const EVP_MD *md)\n{\n return md->type;\n}', 'const EVP_MD *EVP_md5(void)\n{\n return &md5_md;\n}', 'void *CRYPTO_malloc(size_t num, const char *file, int line)\n{\n void *ret = NULL;\n INCREMENT(malloc_count);\n if (malloc_impl != NULL && malloc_impl != CRYPTO_malloc)\n return malloc_impl(num, file, line);\n if (num == 0)\n return NULL;\n FAILTEST();\n if (allow_customize) {\n allow_customize = 0;\n }\n#if !defined(OPENSSL_NO_CRYPTO_MDEBUG) && !defined(FIPS_MODE)\n if (call_malloc_debug) {\n CRYPTO_mem_debug_malloc(NULL, num, 0, file, line);\n ret = malloc(num);\n CRYPTO_mem_debug_malloc(ret, num, 1, file, line);\n } else {\n ret = malloc(num);\n }\n#else\n (void)(file); (void)(line);\n ret = malloc(num);\n#endif\n return ret;\n}', 'const EVP_MD *EVP_sha1(void)\n{\n return &sha1_md;\n}', 'void CRYPTO_clear_free(void *str, size_t num, const char *file, int line)\n{\n if (str == NULL)\n return;\n if (num)\n OPENSSL_cleanse(str, num);\n CRYPTO_free(str, file, line);\n}', 'void CRYPTO_free(void *str, const char *file, int line)\n{\n INCREMENT(free_count);\n if (free_impl != NULL && free_impl != &CRYPTO_free) {\n free_impl(str, file, line);\n return;\n }\n#if !defined(OPENSSL_NO_CRYPTO_MDEBUG) && !defined(FIPS_MODE)\n if (call_malloc_debug) {\n CRYPTO_mem_debug_free(str, 0, file, line);\n free(str);\n CRYPTO_mem_debug_free(str, 1, file, line);\n } else {\n free(str);\n }\n#else\n free(str);\n#endif\n}'] |
25,980 | 0 | https://github.com/libav/libav/blob/046f081b46c8479820409cf8f530b988221bd15b/ffmpeg.c/#L3707 | static int opt_streamid(const char *opt, const char *arg)
{
int idx;
char *p;
char idx_str[16];
av_strlcpy(idx_str, arg, sizeof(idx_str));
p = strchr(idx_str, ':');
if (!p) {
fprintf(stderr,
"Invalid value '%s' for option '%s', required syntax is 'index:value'\n",
arg, opt);
ffmpeg_exit(1);
}
*p++ = '\0';
idx = parse_number_or_die(opt, idx_str, OPT_INT, 0, MAX_STREAMS-1);
streamid_map = grow_array(streamid_map, sizeof(*streamid_map), &nb_streamid_map, idx+1);
streamid_map[idx] = parse_number_or_die(opt, p, OPT_INT, 0, INT_MAX);
return 0;
} | ['static int opt_streamid(const char *opt, const char *arg)\n{\n int idx;\n char *p;\n char idx_str[16];\n av_strlcpy(idx_str, arg, sizeof(idx_str));\n p = strchr(idx_str, \':\');\n if (!p) {\n fprintf(stderr,\n "Invalid value \'%s\' for option \'%s\', required syntax is \'index:value\'\\n",\n arg, opt);\n ffmpeg_exit(1);\n }\n *p++ = \'\\0\';\n idx = parse_number_or_die(opt, idx_str, OPT_INT, 0, MAX_STREAMS-1);\n streamid_map = grow_array(streamid_map, sizeof(*streamid_map), &nb_streamid_map, idx+1);\n streamid_map[idx] = parse_number_or_die(opt, p, OPT_INT, 0, INT_MAX);\n return 0;\n}', 'size_t av_strlcpy(char *dst, const char *src, size_t size)\n{\n size_t len = 0;\n while (++len < size && *src)\n *dst++ = *src++;\n if (len <= size)\n *dst = 0;\n return len + strlen(src) - 1;\n}'] |
25,981 | 0 | https://github.com/libav/libav/blob/fcc0224e4fbd44ae268903185b0cf83560b13555/libavcodec/lpc.c/#L129 | static void quantize_lpc_coefs(double *lpc_in, int order, int precision,
int32_t *lpc_out, int *shift, int max_shift, int zero_shift)
{
int i;
double cmax, error;
int32_t qmax;
int sh;
qmax = (1 << (precision - 1)) - 1;
cmax = 0.0;
for(i=0; i<order; i++) {
cmax= FFMAX(cmax, fabs(lpc_in[i]));
}
if(cmax * (1 << max_shift) < 1.0) {
*shift = zero_shift;
memset(lpc_out, 0, sizeof(int32_t) * order);
return;
}
sh = max_shift;
while((cmax * (1 << sh) > qmax) && (sh > 0)) {
sh--;
}
if(sh == 0 && cmax > qmax) {
double scale = ((double)qmax) / cmax;
for(i=0; i<order; i++) {
lpc_in[i] *= scale;
}
}
error=0;
for(i=0; i<order; i++) {
error -= lpc_in[i] * (1 << sh);
lpc_out[i] = av_clip(lrintf(error), -qmax, qmax);
error -= lpc_out[i];
}
*shift = sh;
} | ['static int ra144_encode_frame(AVCodecContext *avctx, uint8_t *frame,\n int buf_size, void *data)\n{\n static const uint8_t sizes[LPC_ORDER] = {64, 32, 32, 16, 16, 8, 8, 8, 8, 4};\n static const uint8_t bit_sizes[LPC_ORDER] = {6, 5, 5, 4, 4, 3, 3, 3, 3, 2};\n RA144Context *ractx;\n PutBitContext pb;\n int32_t lpc_data[NBLOCKS * BLOCKSIZE];\n int32_t lpc_coefs[LPC_ORDER][MAX_LPC_ORDER];\n int shift[LPC_ORDER];\n int16_t block_coefs[NBLOCKS][LPC_ORDER];\n int lpc_refl[LPC_ORDER];\n unsigned int refl_rms[NBLOCKS];\n int energy = 0;\n int i, idx;\n if (buf_size < FRAMESIZE) {\n av_log(avctx, AV_LOG_ERROR, "output buffer too small\\n");\n return 0;\n }\n ractx = avctx->priv_data;\n for (i = 0; i < (2 * BLOCKSIZE + BLOCKSIZE / 2); i++) {\n lpc_data[i] = ractx->curr_block[BLOCKSIZE + BLOCKSIZE / 2 + i];\n energy += (lpc_data[i] * lpc_data[i]) >> 4;\n }\n for (i = 2 * BLOCKSIZE + BLOCKSIZE / 2; i < NBLOCKS * BLOCKSIZE; i++) {\n lpc_data[i] = *((int16_t *)data + i - 2 * BLOCKSIZE - BLOCKSIZE / 2) >>\n 2;\n energy += (lpc_data[i] * lpc_data[i]) >> 4;\n }\n energy = ff_energy_tab[quantize(ff_t_sqrt(energy >> 5) >> 10, ff_energy_tab,\n 32)];\n ff_lpc_calc_coefs(&ractx->lpc_ctx, lpc_data, NBLOCKS * BLOCKSIZE, LPC_ORDER,\n LPC_ORDER, 16, lpc_coefs, shift, FF_LPC_TYPE_LEVINSON,\n 0, ORDER_METHOD_EST, 12, 0);\n for (i = 0; i < LPC_ORDER; i++)\n block_coefs[NBLOCKS - 1][i] = -(lpc_coefs[LPC_ORDER - 1][i] <<\n (12 - shift[LPC_ORDER - 1]));\n if (ff_eval_refl(lpc_refl, block_coefs[NBLOCKS - 1], avctx)) {\n ff_int_to_int16(block_coefs[NBLOCKS - 1], ractx->lpc_coef[1]);\n ff_eval_refl(lpc_refl, block_coefs[NBLOCKS - 1], avctx);\n }\n init_put_bits(&pb, frame, buf_size);\n for (i = 0; i < LPC_ORDER; i++) {\n idx = quantize(lpc_refl[i], ff_lpc_refl_cb[i], sizes[i]);\n put_bits(&pb, bit_sizes[i], idx);\n lpc_refl[i] = ff_lpc_refl_cb[i][idx];\n }\n ractx->lpc_refl_rms[0] = ff_rms(lpc_refl);\n ff_eval_coefs(ractx->lpc_coef[0], lpc_refl);\n refl_rms[0] = ff_interp(ractx, block_coefs[0], 1, 1, ractx->old_energy);\n refl_rms[1] = ff_interp(ractx, block_coefs[1], 2,\n energy <= ractx->old_energy,\n ff_t_sqrt(energy * ractx->old_energy) >> 12);\n refl_rms[2] = ff_interp(ractx, block_coefs[2], 3, 0, energy);\n refl_rms[3] = ff_rescale_rms(ractx->lpc_refl_rms[0], energy);\n ff_int_to_int16(block_coefs[NBLOCKS - 1], ractx->lpc_coef[0]);\n put_bits(&pb, 5, quantize(energy, ff_energy_tab, 32));\n for (i = 0; i < NBLOCKS; i++)\n ra144_encode_subblock(ractx, ractx->curr_block + i * BLOCKSIZE,\n block_coefs[i], refl_rms[i], &pb);\n flush_put_bits(&pb);\n ractx->old_energy = energy;\n ractx->lpc_refl_rms[1] = ractx->lpc_refl_rms[0];\n FFSWAP(unsigned int *, ractx->lpc_coef[0], ractx->lpc_coef[1]);\n for (i = 0; i < NBLOCKS * BLOCKSIZE; i++)\n ractx->curr_block[i] = *((int16_t *)data + i) >> 2;\n return FRAMESIZE;\n}', 'int ff_lpc_calc_coefs(LPCContext *s,\n const int32_t *samples, int blocksize, int min_order,\n int max_order, int precision,\n int32_t coefs[][MAX_LPC_ORDER], int *shift,\n enum FFLPCType lpc_type, int lpc_passes,\n int omethod, int max_shift, int zero_shift)\n{\n double autoc[MAX_LPC_ORDER+1];\n double ref[MAX_LPC_ORDER];\n double lpc[MAX_LPC_ORDER][MAX_LPC_ORDER];\n int i, j, pass;\n int opt_order;\n assert(max_order >= MIN_LPC_ORDER && max_order <= MAX_LPC_ORDER &&\n lpc_type > FF_LPC_TYPE_FIXED);\n if (blocksize != s->blocksize || max_order != s->max_order ||\n lpc_type != s->lpc_type) {\n ff_lpc_end(s);\n ff_lpc_init(s, blocksize, max_order, lpc_type);\n }\n if (lpc_type == FF_LPC_TYPE_LEVINSON) {\n double *windowed_samples = s->windowed_samples + max_order;\n s->lpc_apply_welch_window(samples, blocksize, windowed_samples);\n s->lpc_compute_autocorr(windowed_samples, blocksize, max_order, autoc);\n compute_lpc_coefs(autoc, max_order, &lpc[0][0], MAX_LPC_ORDER, 0, 1);\n for(i=0; i<max_order; i++)\n ref[i] = fabs(lpc[i][i]);\n } else if (lpc_type == FF_LPC_TYPE_CHOLESKY) {\n LLSModel m[2];\n double var[MAX_LPC_ORDER+1], av_uninit(weight);\n for(pass=0; pass<lpc_passes; pass++){\n av_init_lls(&m[pass&1], max_order);\n weight=0;\n for(i=max_order; i<blocksize; i++){\n for(j=0; j<=max_order; j++)\n var[j]= samples[i-j];\n if(pass){\n double eval, inv, rinv;\n eval= av_evaluate_lls(&m[(pass-1)&1], var+1, max_order-1);\n eval= (512>>pass) + fabs(eval - var[0]);\n inv = 1/eval;\n rinv = sqrt(inv);\n for(j=0; j<=max_order; j++)\n var[j] *= rinv;\n weight += inv;\n }else\n weight++;\n av_update_lls(&m[pass&1], var, 1.0);\n }\n av_solve_lls(&m[pass&1], 0.001, 0);\n }\n for(i=0; i<max_order; i++){\n for(j=0; j<max_order; j++)\n lpc[i][j]=-m[(pass-1)&1].coeff[i][j];\n ref[i]= sqrt(m[(pass-1)&1].variance[i] / weight) * (blocksize - max_order) / 4000;\n }\n for(i=max_order-1; i>0; i--)\n ref[i] = ref[i-1] - ref[i];\n }\n opt_order = max_order;\n if(omethod == ORDER_METHOD_EST) {\n opt_order = estimate_best_order(ref, min_order, max_order);\n i = opt_order-1;\n quantize_lpc_coefs(lpc[i], i+1, precision, coefs[i], &shift[i], max_shift, zero_shift);\n } else {\n for(i=min_order-1; i<max_order; i++) {\n quantize_lpc_coefs(lpc[i], i+1, precision, coefs[i], &shift[i], max_shift, zero_shift);\n }\n }\n return opt_order;\n}', 'static void quantize_lpc_coefs(double *lpc_in, int order, int precision,\n int32_t *lpc_out, int *shift, int max_shift, int zero_shift)\n{\n int i;\n double cmax, error;\n int32_t qmax;\n int sh;\n qmax = (1 << (precision - 1)) - 1;\n cmax = 0.0;\n for(i=0; i<order; i++) {\n cmax= FFMAX(cmax, fabs(lpc_in[i]));\n }\n if(cmax * (1 << max_shift) < 1.0) {\n *shift = zero_shift;\n memset(lpc_out, 0, sizeof(int32_t) * order);\n return;\n }\n sh = max_shift;\n while((cmax * (1 << sh) > qmax) && (sh > 0)) {\n sh--;\n }\n if(sh == 0 && cmax > qmax) {\n double scale = ((double)qmax) / cmax;\n for(i=0; i<order; i++) {\n lpc_in[i] *= scale;\n }\n }\n error=0;\n for(i=0; i<order; i++) {\n error -= lpc_in[i] * (1 << sh);\n lpc_out[i] = av_clip(lrintf(error), -qmax, qmax);\n error -= lpc_out[i];\n }\n *shift = sh;\n}'] |
25,982 | 0 | https://github.com/libav/libav/blob/a20639017bfca0490bb1799575714f22bf470b4f/libavcodec/mpegaudiodec.c/#L879 | static void apply_window_mp3_c(MPA_INT *synth_buf, MPA_INT *window,
int *dither_state, OUT_INT *samples, int incr)
{
register const MPA_INT *w, *w2, *p;
int j;
OUT_INT *samples2;
#if CONFIG_FLOAT
float sum, sum2;
#elif FRAC_BITS <= 15
int sum, sum2;
#else
int64_t sum, sum2;
#endif
memcpy(synth_buf + 512, synth_buf, 32 * sizeof(*synth_buf));
samples2 = samples + 31 * incr;
w = window;
w2 = window + 31;
sum = *dither_state;
p = synth_buf + 16;
SUM8(MACS, sum, w, p);
p = synth_buf + 48;
SUM8(MLSS, sum, w + 32, p);
*samples = round_sample(&sum);
samples += incr;
w++;
for(j=1;j<16;j++) {
sum2 = 0;
p = synth_buf + 16 + j;
SUM8P2(sum, MACS, sum2, MLSS, w, w2, p);
p = synth_buf + 48 - j;
SUM8P2(sum, MLSS, sum2, MLSS, w + 32, w2 + 32, p);
*samples = round_sample(&sum);
samples += incr;
sum += sum2;
*samples2 = round_sample(&sum);
samples2 -= incr;
w++;
w2--;
}
p = synth_buf + 32;
SUM8(MLSS, sum, w + 32, p);
*samples = round_sample(&sum);
*dither_state= sum;
} | ['static void mpc_synth(MPCContext *c, int16_t *out)\n{\n int dither_state = 0;\n int i, ch;\n OUT_INT samples[MPA_MAX_CHANNELS * MPA_FRAME_SIZE], *samples_ptr;\n for(ch = 0; ch < 2; ch++){\n samples_ptr = samples + ch;\n for(i = 0; i < SAMPLES_PER_BAND; i++) {\n ff_mpa_synth_filter(c->synth_buf[ch], &(c->synth_buf_offset[ch]),\n ff_mpa_synth_window, &dither_state,\n samples_ptr, 2,\n c->sb_samples[ch][i]);\n samples_ptr += 64;\n }\n }\n for(i = 0; i < MPC_FRAME_SIZE*2; i++)\n *out++=samples[i];\n}', 'void ff_mpa_synth_filter(MPA_INT *synth_buf_ptr, int *synth_buf_offset,\n MPA_INT *window, int *dither_state,\n OUT_INT *samples, int incr,\n INTFLOAT sb_samples[SBLIMIT])\n{\n register MPA_INT *synth_buf;\n int offset;\n#if FRAC_BITS <= 15\n int32_t tmp[32];\n#endif\n offset = *synth_buf_offset;\n synth_buf = synth_buf_ptr + offset;\n#if FRAC_BITS <= 15 && !CONFIG_FLOAT\n dct32(tmp, sb_samples);\n for(j=0;j<32;j++) {\n synth_buf[j] = av_clip_int16(tmp[j]);\n }\n#else\n dct32(synth_buf, sb_samples);\n#endif\n apply_window_mp3_c(synth_buf, window, dither_state, samples, incr);\n offset = (offset - 32) & 511;\n *synth_buf_offset = offset;\n}', 'static void apply_window_mp3_c(MPA_INT *synth_buf, MPA_INT *window,\n int *dither_state, OUT_INT *samples, int incr)\n{\n register const MPA_INT *w, *w2, *p;\n int j;\n OUT_INT *samples2;\n#if CONFIG_FLOAT\n float sum, sum2;\n#elif FRAC_BITS <= 15\n int sum, sum2;\n#else\n int64_t sum, sum2;\n#endif\n memcpy(synth_buf + 512, synth_buf, 32 * sizeof(*synth_buf));\n samples2 = samples + 31 * incr;\n w = window;\n w2 = window + 31;\n sum = *dither_state;\n p = synth_buf + 16;\n SUM8(MACS, sum, w, p);\n p = synth_buf + 48;\n SUM8(MLSS, sum, w + 32, p);\n *samples = round_sample(&sum);\n samples += incr;\n w++;\n for(j=1;j<16;j++) {\n sum2 = 0;\n p = synth_buf + 16 + j;\n SUM8P2(sum, MACS, sum2, MLSS, w, w2, p);\n p = synth_buf + 48 - j;\n SUM8P2(sum, MLSS, sum2, MLSS, w + 32, w2 + 32, p);\n *samples = round_sample(&sum);\n samples += incr;\n sum += sum2;\n *samples2 = round_sample(&sum);\n samples2 -= incr;\n w++;\n w2--;\n }\n p = synth_buf + 32;\n SUM8(MLSS, sum, w + 32, p);\n *samples = round_sample(&sum);\n *dither_state= sum;\n}'] |
25,983 | 0 | https://github.com/openssl/openssl/blob/4dfc8f1f0b3ff85adfdca3a37be5df7928092f07/crypto/camellia/cmll_cfb.c/#L187 | void Camellia_cfbr_encrypt_block(const unsigned char *in,unsigned char *out,
const int nbits,const CAMELLIA_KEY *key,
unsigned char *ivec,const int enc)
{
int n,rem,num;
unsigned char ovec[CAMELLIA_BLOCK_SIZE*2];
if (nbits<=0 || nbits>128) return;
memcpy(ovec,ivec,CAMELLIA_BLOCK_SIZE);
Camellia_encrypt(ivec,ivec,key);
num = (nbits+7)/8;
if (enc)
for(n=0 ; n < num ; ++n)
out[n] = (ovec[CAMELLIA_BLOCK_SIZE+n] = in[n] ^ ivec[n]);
else
for(n=0 ; n < num ; ++n)
out[n] = (ovec[CAMELLIA_BLOCK_SIZE+n] = in[n]) ^ ivec[n];
rem = nbits%8;
num = nbits/8;
if(rem==0)
memcpy(ivec,ovec+num,CAMELLIA_BLOCK_SIZE);
else
for(n=0 ; n < CAMELLIA_BLOCK_SIZE ; ++n)
ivec[n] = ovec[n+num]<<rem | ovec[n+num+1]>>(8-rem);
} | ['void Camellia_cfb1_encrypt(const unsigned char *in, unsigned char *out,\n\tconst unsigned long length, const CAMELLIA_KEY *key,\n\tunsigned char *ivec, int *num, const int enc)\n\t{\n\tunsigned int n;\n\tunsigned char c[1],d[1];\n\tassert(in && out && key && ivec && num);\n\tassert(*num == 0);\n\tmemset(out,0,(length+7)/8);\n\tfor(n=0 ; n < length ; ++n)\n\t\t{\n\t\tc[0]=(in[n/8]&(1 << (7-n%8))) ? 0x80 : 0;\n\t\tCamellia_cfbr_encrypt_block(c,d,1,key,ivec,enc);\n\t\tout[n/8]=(out[n/8]&~(1 << (7-n%8)))|((d[0]&0x80) >> (n%8));\n\t\t}\n\t}', 'void Camellia_cfbr_encrypt_block(const unsigned char *in,unsigned char *out,\n\tconst int nbits,const CAMELLIA_KEY *key,\n\tunsigned char *ivec,const int enc)\n\t{\n\tint n,rem,num;\n\tunsigned char ovec[CAMELLIA_BLOCK_SIZE*2];\n\tif (nbits<=0 || nbits>128) return;\n\tmemcpy(ovec,ivec,CAMELLIA_BLOCK_SIZE);\n\tCamellia_encrypt(ivec,ivec,key);\n\tnum = (nbits+7)/8;\n\tif (enc)\n\t\tfor(n=0 ; n < num ; ++n)\n\t\t\tout[n] = (ovec[CAMELLIA_BLOCK_SIZE+n] = in[n] ^ ivec[n]);\n\telse\n\t\tfor(n=0 ; n < num ; ++n)\n\t\t\tout[n] = (ovec[CAMELLIA_BLOCK_SIZE+n] = in[n]) ^ ivec[n];\n\trem = nbits%8;\n\tnum = nbits/8;\n\tif(rem==0)\n\t\tmemcpy(ivec,ovec+num,CAMELLIA_BLOCK_SIZE);\n\telse\n\t\tfor(n=0 ; n < CAMELLIA_BLOCK_SIZE ; ++n)\n\t\t\tivec[n] = ovec[n+num]<<rem | ovec[n+num+1]>>(8-rem);\n\t}'] |
25,984 | 0 | https://github.com/libav/libav/blob/75366a504dfc30deadeac71c35e3c444275986f9/libavformat/mux.c/#L601 | int av_write_trailer(AVFormatContext *s)
{
int ret, i;
for (;; ) {
AVPacket pkt;
ret = interleave_packet(s, &pkt, NULL, 1);
if (ret < 0)
goto fail;
if (!ret)
break;
ret = s->oformat->write_packet(s, &pkt);
if (ret >= 0)
s->streams[pkt.stream_index]->nb_frames++;
av_free_packet(&pkt);
if (ret < 0)
goto fail;
}
if (s->oformat->write_trailer)
ret = s->oformat->write_trailer(s);
if (!(s->oformat->flags & AVFMT_NOFILE))
avio_flush(s->pb);
fail:
for (i = 0; i < s->nb_streams; i++) {
av_freep(&s->streams[i]->priv_data);
av_freep(&s->streams[i]->index_entries);
}
if (s->oformat->priv_class)
av_opt_free(s->priv_data);
av_freep(&s->priv_data);
return ret;
} | ['int av_write_trailer(AVFormatContext *s)\n{\n int ret, i;\n for (;; ) {\n AVPacket pkt;\n ret = interleave_packet(s, &pkt, NULL, 1);\n if (ret < 0)\n goto fail;\n if (!ret)\n break;\n ret = s->oformat->write_packet(s, &pkt);\n if (ret >= 0)\n s->streams[pkt.stream_index]->nb_frames++;\n av_free_packet(&pkt);\n if (ret < 0)\n goto fail;\n }\n if (s->oformat->write_trailer)\n ret = s->oformat->write_trailer(s);\n if (!(s->oformat->flags & AVFMT_NOFILE))\n avio_flush(s->pb);\nfail:\n for (i = 0; i < s->nb_streams; i++) {\n av_freep(&s->streams[i]->priv_data);\n av_freep(&s->streams[i]->index_entries);\n }\n if (s->oformat->priv_class)\n av_opt_free(s->priv_data);\n av_freep(&s->priv_data);\n return ret;\n}'] |
25,985 | 0 | https://github.com/openssl/openssl/blob/d40a1b865fddc3d67f8c06ff1f1466fad331c8f7/crypto/bn/bn_lib.c/#L250 | int BN_num_bits(const BIGNUM *a)
{
int i = a->top - 1;
bn_check_top(a);
if (BN_is_zero(a)) return 0;
return ((i*BN_BITS2) + BN_num_bits_word(a->d[i]));
} | ['static DSA_SIG *cswift_dsa_sign(const unsigned char *dgst, int dlen, DSA *dsa)\n\t{\n\tSW_CONTEXT_HANDLE hac;\n\tSW_PARAM sw_param;\n\tSW_STATUS sw_status;\n\tSW_LARGENUMBER arg, res;\n\tunsigned char *ptr;\n\tBN_CTX *ctx;\n\tBIGNUM *dsa_p = NULL;\n\tBIGNUM *dsa_q = NULL;\n\tBIGNUM *dsa_g = NULL;\n\tBIGNUM *dsa_key = NULL;\n\tBIGNUM *result = NULL;\n\tDSA_SIG *to_return = NULL;\n\tint acquired = 0;\n\tif((ctx = BN_CTX_new()) == NULL)\n\t\tgoto err;\n\tif(!get_context(&hac))\n\t\t{\n\t\tCSWIFTerr(CSWIFT_F_CSWIFT_DSA_SIGN,CSWIFT_R_UNIT_FAILURE);\n\t\tgoto err;\n\t\t}\n\tacquired = 1;\n\tBN_CTX_start(ctx);\n\tdsa_p = BN_CTX_get(ctx);\n\tdsa_q = BN_CTX_get(ctx);\n\tdsa_g = BN_CTX_get(ctx);\n\tdsa_key = BN_CTX_get(ctx);\n\tresult = BN_CTX_get(ctx);\n\tif(!result)\n\t\t{\n\t\tCSWIFTerr(CSWIFT_F_CSWIFT_DSA_SIGN,CSWIFT_R_BN_CTX_FULL);\n\t\tgoto err;\n\t\t}\n\tif(!bn_wexpand(dsa_p, dsa->p->top) ||\n\t\t\t!bn_wexpand(dsa_q, dsa->q->top) ||\n\t\t\t!bn_wexpand(dsa_g, dsa->g->top) ||\n\t\t\t!bn_wexpand(dsa_key, dsa->priv_key->top) ||\n\t\t\t!bn_wexpand(result, dsa->p->top))\n\t\t{\n\t\tCSWIFTerr(CSWIFT_F_CSWIFT_DSA_SIGN,CSWIFT_R_BN_EXPAND_FAIL);\n\t\tgoto err;\n\t\t}\n\tsw_param.type = SW_ALG_DSA;\n\tsw_param.up.dsa.p.nbytes = BN_bn2bin(dsa->p,\n\t\t\t\t(unsigned char *)dsa_p->d);\n\tsw_param.up.dsa.p.value = (unsigned char *)dsa_p->d;\n\tsw_param.up.dsa.q.nbytes = BN_bn2bin(dsa->q,\n\t\t\t\t(unsigned char *)dsa_q->d);\n\tsw_param.up.dsa.q.value = (unsigned char *)dsa_q->d;\n\tsw_param.up.dsa.g.nbytes = BN_bn2bin(dsa->g,\n\t\t\t\t(unsigned char *)dsa_g->d);\n\tsw_param.up.dsa.g.value = (unsigned char *)dsa_g->d;\n\tsw_param.up.dsa.key.nbytes = BN_bn2bin(dsa->priv_key,\n\t\t\t\t(unsigned char *)dsa_key->d);\n\tsw_param.up.dsa.key.value = (unsigned char *)dsa_key->d;\n\tsw_status = p_CSwift_AttachKeyParam(hac, &sw_param);\n\tswitch(sw_status)\n\t\t{\n\tcase SW_OK:\n\t\tbreak;\n\tcase SW_ERR_INPUT_SIZE:\n\t\tCSWIFTerr(CSWIFT_F_CSWIFT_DSA_SIGN,CSWIFT_R_BAD_KEY_SIZE);\n\t\tgoto err;\n\tdefault:\n\t\t{\n\t\tchar tmpbuf[DECIMAL_SIZE(sw_status)+1];\n\t\tCSWIFTerr(CSWIFT_F_CSWIFT_DSA_SIGN,CSWIFT_R_REQUEST_FAILED);\n\t\tsprintf(tmpbuf, "%ld", sw_status);\n\t\tERR_add_error_data(2, "CryptoSwift error number is ",tmpbuf);\n\t\t}\n\t\tgoto err;\n\t\t}\n\targ.nbytes = dlen;\n\targ.value = (unsigned char *)dgst;\n\tres.nbytes = BN_num_bytes(dsa->p);\n\tmemset(result->d, 0, res.nbytes);\n\tres.value = (unsigned char *)result->d;\n\tsw_status = p_CSwift_SimpleRequest(hac, SW_CMD_DSS_SIGN, &arg, 1,\n\t\t&res, 1);\n\tif(sw_status != SW_OK)\n\t\t{\n\t\tchar tmpbuf[DECIMAL_SIZE(sw_status)+1];\n\t\tCSWIFTerr(CSWIFT_F_CSWIFT_DSA_SIGN,CSWIFT_R_REQUEST_FAILED);\n\t\tsprintf(tmpbuf, "%ld", sw_status);\n\t\tERR_add_error_data(2, "CryptoSwift error number is ",tmpbuf);\n\t\tgoto err;\n\t\t}\n\tptr = (unsigned char *)result->d;\n\tif((to_return = DSA_SIG_new()) == NULL)\n\t\tgoto err;\n\tto_return->r = BN_bin2bn((unsigned char *)result->d, 20, NULL);\n\tto_return->s = BN_bin2bn((unsigned char *)result->d + 20, 20, NULL);\nerr:\n\tif(acquired)\n\t\trelease_context(hac);\n\tif(ctx)\n\t\t{\n\t\tBN_CTX_end(ctx);\n\t\tBN_CTX_free(ctx);\n\t\t}\n\treturn to_return;\n\t}', 'int BN_bn2bin(const BIGNUM *a, unsigned char *to)\n\t{\n\tint n,i;\n\tBN_ULONG l;\n\tbn_check_top(a);\n\tn=i=BN_num_bytes(a);\n\twhile (i--)\n\t\t{\n\t\tl=a->d[i/BN_BYTES];\n\t\t*(to++)=(unsigned char)(l>>(8*(i%BN_BYTES)))&0xff;\n\t\t}\n\treturn(n);\n\t}', 'int BN_num_bits(const BIGNUM *a)\n\t{\n\tint i = a->top - 1;\n\tbn_check_top(a);\n\tif (BN_is_zero(a)) return 0;\n\treturn ((i*BN_BITS2) + BN_num_bits_word(a->d[i]));\n\t}'] |
25,986 | 0 | https://github.com/openssl/openssl/blob/8da94770f0a049497b1a52ee469cca1f4a13b1a7/crypto/bn/bn_lib.c/#L352 | static BN_ULONG *bn_expand_internal(const BIGNUM *b, int words)
{
BN_ULONG *A, *a = NULL;
const BN_ULONG *B;
int i;
bn_check_top(b);
if (words > (INT_MAX / (4 * BN_BITS2))) {
BNerr(BN_F_BN_EXPAND_INTERNAL, BN_R_BIGNUM_TOO_LONG);
return NULL;
}
if (BN_get_flags(b, BN_FLG_STATIC_DATA)) {
BNerr(BN_F_BN_EXPAND_INTERNAL, BN_R_EXPAND_ON_STATIC_BIGNUM_DATA);
return (NULL);
}
if (BN_get_flags(b,BN_FLG_SECURE))
a = A = OPENSSL_secure_malloc(words * sizeof(*a));
else
a = A = OPENSSL_malloc(words * sizeof(*a));
if (A == NULL) {
BNerr(BN_F_BN_EXPAND_INTERNAL, ERR_R_MALLOC_FAILURE);
return (NULL);
}
#ifdef PURIFY
memset(a, 0, sizeof(*a) * words);
#endif
#if 1
B = b->d;
if (B != NULL) {
for (i = b->top >> 2; i > 0; i--, A += 4, B += 4) {
BN_ULONG a0, a1, a2, a3;
a0 = B[0];
a1 = B[1];
a2 = B[2];
a3 = B[3];
A[0] = a0;
A[1] = a1;
A[2] = a2;
A[3] = a3;
}
switch (b->top & 3) {
case 3:
A[2] = B[2];
case 2:
A[1] = B[1];
case 1:
A[0] = B[0];
case 0:
;
}
}
#else
memset(A, 0, sizeof(*A) * words);
memcpy(A, b->d, sizeof(b->d[0]) * b->top);
#endif
return (a);
} | ['static int ecdsa_sign_setup(EC_KEY *eckey, BN_CTX *ctx_in,\n BIGNUM **kinvp, BIGNUM **rp,\n const unsigned char *dgst, int dlen)\n{\n BN_CTX *ctx = NULL;\n BIGNUM *k = NULL, *r = NULL, *order = NULL, *X = NULL;\n EC_POINT *tmp_point = NULL;\n const EC_GROUP *group;\n int ret = 0;\n if (eckey == NULL || (group = EC_KEY_get0_group(eckey)) == NULL) {\n ECerr(EC_F_ECDSA_SIGN_SETUP, ERR_R_PASSED_NULL_PARAMETER);\n return 0;\n }\n if (ctx_in == NULL) {\n if ((ctx = BN_CTX_new()) == NULL) {\n ECerr(EC_F_ECDSA_SIGN_SETUP, ERR_R_MALLOC_FAILURE);\n return 0;\n }\n } else\n ctx = ctx_in;\n k = BN_new();\n r = BN_new();\n order = BN_new();\n X = BN_new();\n if (k == NULL || r == NULL || order == NULL || X == NULL) {\n ECerr(EC_F_ECDSA_SIGN_SETUP, ERR_R_MALLOC_FAILURE);\n goto err;\n }\n if ((tmp_point = EC_POINT_new(group)) == NULL) {\n ECerr(EC_F_ECDSA_SIGN_SETUP, ERR_R_EC_LIB);\n goto err;\n }\n if (!EC_GROUP_get_order(group, order, ctx)) {\n ECerr(EC_F_ECDSA_SIGN_SETUP, ERR_R_EC_LIB);\n goto err;\n }\n do {\n do\n if (dgst != NULL) {\n if (!BN_generate_dsa_nonce\n (k, order, EC_KEY_get0_private_key(eckey), dgst, dlen,\n ctx)) {\n ECerr(EC_F_ECDSA_SIGN_SETUP,\n EC_R_RANDOM_NUMBER_GENERATION_FAILED);\n goto err;\n }\n } else {\n if (!BN_rand_range(k, order)) {\n ECerr(EC_F_ECDSA_SIGN_SETUP,\n EC_R_RANDOM_NUMBER_GENERATION_FAILED);\n goto err;\n }\n }\n while (BN_is_zero(k));\n if (!BN_add(k, k, order))\n goto err;\n if (BN_num_bits(k) <= BN_num_bits(order))\n if (!BN_add(k, k, order))\n goto err;\n if (!EC_POINT_mul(group, tmp_point, k, NULL, NULL, ctx)) {\n ECerr(EC_F_ECDSA_SIGN_SETUP, ERR_R_EC_LIB);\n goto err;\n }\n if (EC_METHOD_get_field_type(EC_GROUP_method_of(group)) ==\n NID_X9_62_prime_field) {\n if (!EC_POINT_get_affine_coordinates_GFp\n (group, tmp_point, X, NULL, ctx)) {\n ECerr(EC_F_ECDSA_SIGN_SETUP, ERR_R_EC_LIB);\n goto err;\n }\n }\n#ifndef OPENSSL_NO_EC2M\n else {\n if (!EC_POINT_get_affine_coordinates_GF2m(group,\n tmp_point, X, NULL,\n ctx)) {\n ECerr(EC_F_ECDSA_SIGN_SETUP, ERR_R_EC_LIB);\n goto err;\n }\n }\n#endif\n if (!BN_nnmod(r, X, order, ctx)) {\n ECerr(EC_F_ECDSA_SIGN_SETUP, ERR_R_BN_LIB);\n goto err;\n }\n }\n while (BN_is_zero(r));\n if (EC_GROUP_get_mont_data(group) != NULL) {\n if (!BN_set_word(X, 2)) {\n ECerr(EC_F_ECDSA_SIGN_SETUP, ERR_R_BN_LIB);\n goto err;\n }\n if (!BN_mod_sub(X, order, X, order, ctx)) {\n ECerr(EC_F_ECDSA_SIGN_SETUP, ERR_R_BN_LIB);\n goto err;\n }\n BN_set_flags(X, BN_FLG_CONSTTIME);\n if (!BN_mod_exp_mont_consttime\n (k, k, X, order, ctx, EC_GROUP_get_mont_data(group))) {\n ECerr(EC_F_ECDSA_SIGN_SETUP, ERR_R_BN_LIB);\n goto err;\n }\n } else {\n if (!BN_mod_inverse(k, k, order, ctx)) {\n ECerr(EC_F_ECDSA_SIGN_SETUP, ERR_R_BN_LIB);\n goto err;\n }\n }\n BN_clear_free(*rp);\n BN_clear_free(*kinvp);\n *rp = r;\n *kinvp = k;\n ret = 1;\n err:\n if (!ret) {\n BN_clear_free(k);\n BN_clear_free(r);\n }\n if (ctx != ctx_in)\n BN_CTX_free(ctx);\n BN_free(order);\n EC_POINT_free(tmp_point);\n BN_clear_free(X);\n return (ret);\n}', 'int EC_GROUP_get_order(const EC_GROUP *group, BIGNUM *order, BN_CTX *ctx)\n{\n if (!BN_copy(order, group->order))\n return 0;\n return !BN_is_zero(order);\n}', 'BIGNUM *BN_copy(BIGNUM *a, const BIGNUM *b)\n{\n int i;\n BN_ULONG *A;\n const BN_ULONG *B;\n bn_check_top(b);\n if (a == b)\n return (a);\n if (bn_wexpand(a, b->top) == NULL)\n return (NULL);\n#if 1\n A = a->d;\n B = b->d;\n for (i = b->top >> 2; i > 0; i--, A += 4, B += 4) {\n BN_ULONG a0, a1, a2, a3;\n a0 = B[0];\n a1 = B[1];\n a2 = B[2];\n a3 = B[3];\n A[0] = a0;\n A[1] = a1;\n A[2] = a2;\n A[3] = a3;\n }\n switch (b->top & 3) {\n case 3:\n A[2] = B[2];\n case 2:\n A[1] = B[1];\n case 1:\n A[0] = B[0];\n case 0:;\n }\n#else\n memcpy(a->d, b->d, sizeof(b->d[0]) * b->top);\n#endif\n a->top = b->top;\n a->neg = b->neg;\n bn_check_top(a);\n return (a);\n}', 'int BN_generate_dsa_nonce(BIGNUM *out, const BIGNUM *range,\n const BIGNUM *priv, const unsigned char *message,\n size_t message_len, BN_CTX *ctx)\n{\n SHA512_CTX sha;\n unsigned char random_bytes[64];\n unsigned char digest[SHA512_DIGEST_LENGTH];\n unsigned done, todo;\n const unsigned num_k_bytes = BN_num_bytes(range) + 8;\n unsigned char private_bytes[96];\n unsigned char *k_bytes;\n int ret = 0;\n k_bytes = OPENSSL_malloc(num_k_bytes);\n if (k_bytes == NULL)\n goto err;\n todo = sizeof(priv->d[0]) * priv->top;\n if (todo > sizeof(private_bytes)) {\n BNerr(BN_F_BN_GENERATE_DSA_NONCE, BN_R_PRIVATE_KEY_TOO_LARGE);\n goto err;\n }\n memcpy(private_bytes, priv->d, todo);\n memset(private_bytes + todo, 0, sizeof(private_bytes) - todo);\n for (done = 0; done < num_k_bytes;) {\n if (RAND_bytes(random_bytes, sizeof(random_bytes)) != 1)\n goto err;\n SHA512_Init(&sha);\n SHA512_Update(&sha, &done, sizeof(done));\n SHA512_Update(&sha, private_bytes, sizeof(private_bytes));\n SHA512_Update(&sha, message, message_len);\n SHA512_Update(&sha, random_bytes, sizeof(random_bytes));\n SHA512_Final(digest, &sha);\n todo = num_k_bytes - done;\n if (todo > SHA512_DIGEST_LENGTH)\n todo = SHA512_DIGEST_LENGTH;\n memcpy(k_bytes + done, digest, todo);\n done += todo;\n }\n if (!BN_bin2bn(k_bytes, num_k_bytes, out))\n goto err;\n if (BN_mod(out, out, range, ctx) != 1)\n goto err;\n ret = 1;\n err:\n OPENSSL_free(k_bytes);\n return ret;\n}', 'BIGNUM *BN_bin2bn(const unsigned char *s, int len, BIGNUM *ret)\n{\n unsigned int i, m;\n unsigned int n;\n BN_ULONG l;\n BIGNUM *bn = NULL;\n if (ret == NULL)\n ret = bn = BN_new();\n if (ret == NULL)\n return (NULL);\n bn_check_top(ret);\n for ( ; len > 0 && *s == 0; s++, len--)\n continue;\n n = len;\n if (n == 0) {\n ret->top = 0;\n return (ret);\n }\n i = ((n - 1) / BN_BYTES) + 1;\n m = ((n - 1) % (BN_BYTES));\n if (bn_wexpand(ret, (int)i) == NULL) {\n BN_free(bn);\n return NULL;\n }\n ret->top = i;\n ret->neg = 0;\n l = 0;\n while (n--) {\n l = (l << 8L) | *(s++);\n if (m-- == 0) {\n ret->d[--i] = l;\n l = 0;\n m = BN_BYTES - 1;\n }\n }\n bn_correct_top(ret);\n return (ret);\n}', 'BIGNUM *bn_wexpand(BIGNUM *a, int words)\n{\n return (words <= a->dmax) ? a : bn_expand2(a, words);\n}', 'BIGNUM *bn_expand2(BIGNUM *b, int words)\n{\n bn_check_top(b);\n if (words > b->dmax) {\n BN_ULONG *a = bn_expand_internal(b, words);\n if (!a)\n return NULL;\n if (b->d) {\n OPENSSL_cleanse(b->d, b->dmax * sizeof(b->d[0]));\n bn_free_d(b);\n }\n b->d = a;\n b->dmax = words;\n }\n bn_check_top(b);\n return b;\n}', 'static BN_ULONG *bn_expand_internal(const BIGNUM *b, int words)\n{\n BN_ULONG *A, *a = NULL;\n const BN_ULONG *B;\n int i;\n bn_check_top(b);\n if (words > (INT_MAX / (4 * BN_BITS2))) {\n BNerr(BN_F_BN_EXPAND_INTERNAL, BN_R_BIGNUM_TOO_LONG);\n return NULL;\n }\n if (BN_get_flags(b, BN_FLG_STATIC_DATA)) {\n BNerr(BN_F_BN_EXPAND_INTERNAL, BN_R_EXPAND_ON_STATIC_BIGNUM_DATA);\n return (NULL);\n }\n if (BN_get_flags(b,BN_FLG_SECURE))\n a = A = OPENSSL_secure_malloc(words * sizeof(*a));\n else\n a = A = OPENSSL_malloc(words * sizeof(*a));\n if (A == NULL) {\n BNerr(BN_F_BN_EXPAND_INTERNAL, ERR_R_MALLOC_FAILURE);\n return (NULL);\n }\n#ifdef PURIFY\n memset(a, 0, sizeof(*a) * words);\n#endif\n#if 1\n B = b->d;\n if (B != NULL) {\n for (i = b->top >> 2; i > 0; i--, A += 4, B += 4) {\n BN_ULONG a0, a1, a2, a3;\n a0 = B[0];\n a1 = B[1];\n a2 = B[2];\n a3 = B[3];\n A[0] = a0;\n A[1] = a1;\n A[2] = a2;\n A[3] = a3;\n }\n switch (b->top & 3) {\n case 3:\n A[2] = B[2];\n case 2:\n A[1] = B[1];\n case 1:\n A[0] = B[0];\n case 0:\n ;\n }\n }\n#else\n memset(A, 0, sizeof(*A) * words);\n memcpy(A, b->d, sizeof(b->d[0]) * b->top);\n#endif\n return (a);\n}'] |
25,987 | 0 | https://github.com/openssl/openssl/blob/09977dd095f3c655c99b9e1810a213f7eafa7364/crypto/bn/bn_lib.c/#L526 | int BN_set_word(BIGNUM *a, BN_ULONG w)
{
bn_check_top(a);
if (bn_expand(a, (int)sizeof(BN_ULONG) * 8) == NULL)
return (0);
a->neg = 0;
a->d[0] = w;
a->top = (w ? 1 : 0);
bn_check_top(a);
return (1);
} | ['int BN_set_word(BIGNUM *a, BN_ULONG w)\n{\n bn_check_top(a);\n if (bn_expand(a, (int)sizeof(BN_ULONG) * 8) == NULL)\n return (0);\n a->neg = 0;\n a->d[0] = w;\n a->top = (w ? 1 : 0);\n bn_check_top(a);\n return (1);\n}', 'static ossl_inline BIGNUM *bn_expand(BIGNUM *a, int bits)\n{\n if (bits > (INT_MAX - BN_BITS2 + 1))\n return NULL;\n if(((bits+BN_BITS2-1)/BN_BITS2) <= (a)->dmax)\n return a;\n return bn_expand2((a),(bits+BN_BITS2-1)/BN_BITS2);\n}'] |
25,988 | 0 | https://github.com/openssl/openssl/blob/95dc05bc6d0dfe0f3f3681f5e27afbc3f7a35eea/crypto/bn/bn_lib.c/#L377 | BIGNUM *bn_expand2(BIGNUM *b, int words)
{
BN_ULONG *A,*B,*a;
int i,j;
bn_check_top(b);
if (words > b->max)
{
bn_check_top(b);
if (BN_get_flags(b,BN_FLG_STATIC_DATA))
{
BNerr(BN_F_BN_EXPAND2,BN_R_EXPAND_ON_STATIC_BIGNUM_DATA);
return(NULL);
}
a=A=(BN_ULONG *)Malloc(sizeof(BN_ULONG)*(words+1));
if (A == NULL)
{
BNerr(BN_F_BN_EXPAND2,ERR_R_MALLOC_FAILURE);
return(NULL);
}
memset(A,0x5c,sizeof(BN_ULONG)*(words+1));
#if 1
B=b->d;
if (B != NULL)
{
for (i=b->top&(~7); i>0; i-=8)
{
A[0]=B[0]; A[1]=B[1]; A[2]=B[2]; A[3]=B[3];
A[4]=B[4]; A[5]=B[5]; A[6]=B[6]; A[7]=B[7];
A+=8;
B+=8;
}
switch (b->top&7)
{
case 7:
A[6]=B[6];
case 6:
A[5]=B[5];
case 5:
A[4]=B[4];
case 4:
A[3]=B[3];
case 3:
A[2]=B[2];
case 2:
A[1]=B[1];
case 1:
A[0]=B[0];
case 0:
;
}
Free(b->d);
}
b->d=a;
b->max=words;
B= &(b->d[b->top]);
j=(b->max - b->top) & ~7;
for (i=0; i<j; i+=8)
{
B[0]=0; B[1]=0; B[2]=0; B[3]=0;
B[4]=0; B[5]=0; B[6]=0; B[7]=0;
B+=8;
}
j=(b->max - b->top) & 7;
for (i=0; i<j; i++)
{
B[0]=0;
B++;
}
#else
memcpy(a->d,b->d,sizeof(b->d[0])*b->top);
#endif
}
return(b);
} | ['int test_lshift(BIO *bp)\n\t{\n\tBIGNUM *a,*b,*c;\n\tint i;\n\ta=BN_new();\n\tb=BN_new();\n\tc=BN_new();\n\tBN_one(c);\n\tBN_rand(a,200,0,0);\n\ta->neg=rand_neg();\n\tfor (i=0; i<70; i++)\n\t\t{\n\t\tBN_lshift(b,a,i+1);\n\t\tBN_add(c,c,c);\n\t\tif (bp != NULL)\n\t\t\t{\n\t\t\tif (!results)\n\t\t\t\t{\n\t\t\t\tBN_print(bp,a);\n\t\t\t\tBIO_puts(bp," * ");\n\t\t\t\tBN_print(bp,c);\n\t\t\t\tBIO_puts(bp," - ");\n\t\t\t\t}\n\t\t\tBN_print(bp,b);\n\t\t\tBIO_puts(bp,"\\n");\n\t\t\t}\n\t\t}\n\tBN_free(a);\n\tBN_free(b);\n\tBN_free(c);\n\treturn(1);\n\t}', 'int BN_set_word(BIGNUM *a, BN_ULONG w)\n\t{\n\tint i,n;\n\tif (bn_expand(a,sizeof(BN_ULONG)*8) == NULL) return(0);\n\tn=sizeof(BN_ULONG)/BN_BYTES;\n\ta->neg=0;\n\ta->top=0;\n\ta->d[0]=(BN_ULONG)w&BN_MASK2;\n\tif (a->d[0] != 0) a->top=1;\n\tfor (i=1; i<n; i++)\n\t\t{\n#ifndef SIXTY_FOUR_BIT\n\t\tw>>=BN_BITS4;\n\t\tw>>=BN_BITS4;\n#endif\n\t\ta->d[i]=(BN_ULONG)w&BN_MASK2;\n\t\tif (a->d[i] != 0) a->top=i+1;\n\t\t}\n\treturn(1);\n\t}', 'int BN_rand(BIGNUM *rnd, int bits, int top, int bottom)\n\t{\n\tunsigned char *buf=NULL;\n\tint ret=0,bit,bytes,mask;\n\ttime_t tim;\n\tbytes=(bits+7)/8;\n\tbit=(bits-1)%8;\n\tmask=0xff<<bit;\n\tbuf=(unsigned char *)Malloc(bytes);\n\tif (buf == NULL)\n\t\t{\n\t\tBNerr(BN_F_BN_RAND,ERR_R_MALLOC_FAILURE);\n\t\tgoto err;\n\t\t}\n\ttime(&tim);\n\tRAND_seed(&tim,sizeof(tim));\n\tRAND_bytes(buf,(int)bytes);\n\tif (top)\n\t\t{\n\t\tif (bit == 0)\n\t\t\t{\n\t\t\tbuf[0]=1;\n\t\t\tbuf[1]|=0x80;\n\t\t\t}\n\t\telse\n\t\t\t{\n\t\t\tbuf[0]|=(3<<(bit-1));\n\t\t\tbuf[0]&= ~(mask<<1);\n\t\t\t}\n\t\t}\n\telse\n\t\t{\n\t\tbuf[0]|=(1<<bit);\n\t\tbuf[0]&= ~(mask<<1);\n\t\t}\n\tif (bottom)\n\t\tbuf[bytes-1]|=1;\n\tif (!BN_bin2bn(buf,bytes,rnd)) goto err;\n\tret=1;\nerr:\n\tif (buf != NULL)\n\t\t{\n\t\tmemset(buf,0,bytes);\n\t\tFree(buf);\n\t\t}\n\treturn(ret);\n\t}', 'int BN_lshift(BIGNUM *r, BIGNUM *a, int n)\n\t{\n\tint i,nw,lb,rb;\n\tBN_ULONG *t,*f;\n\tBN_ULONG l;\n\tr->neg=a->neg;\n\tif (bn_wexpand(r,a->top+(n/BN_BITS2)+1) == NULL) return(0);\n\tnw=n/BN_BITS2;\n\tlb=n%BN_BITS2;\n\trb=BN_BITS2-lb;\n\tf=a->d;\n\tt=r->d;\n\tt[a->top+nw]=0;\n\tif (lb == 0)\n\t\tfor (i=a->top-1; i>=0; i--)\n\t\t\tt[nw+i]=f[i];\n\telse\n\t\tfor (i=a->top-1; i>=0; i--)\n\t\t\t{\n\t\t\tl=f[i];\n\t\t\tt[nw+i+1]|=(l>>rb)&BN_MASK2;\n\t\t\tt[nw+i]=(l<<lb)&BN_MASK2;\n\t\t\t}\n\tmemset(t,0,nw*sizeof(t[0]));\n\tr->top=a->top+nw+1;\n\tbn_fix_top(r);\n\treturn(1);\n\t}', 'BIGNUM *bn_expand2(BIGNUM *b, int words)\n\t{\n\tBN_ULONG *A,*B,*a;\n\tint i,j;\n\tbn_check_top(b);\n\tif (words > b->max)\n\t\t{\n\t\tbn_check_top(b);\n\t\tif (BN_get_flags(b,BN_FLG_STATIC_DATA))\n\t\t\t{\n\t\t\tBNerr(BN_F_BN_EXPAND2,BN_R_EXPAND_ON_STATIC_BIGNUM_DATA);\n\t\t\treturn(NULL);\n\t\t\t}\n\t\ta=A=(BN_ULONG *)Malloc(sizeof(BN_ULONG)*(words+1));\n\t\tif (A == NULL)\n\t\t\t{\n\t\t\tBNerr(BN_F_BN_EXPAND2,ERR_R_MALLOC_FAILURE);\n\t\t\treturn(NULL);\n\t\t\t}\nmemset(A,0x5c,sizeof(BN_ULONG)*(words+1));\n#if 1\n\t\tB=b->d;\n\t\tif (B != NULL)\n\t\t\t{\n\t\t\tfor (i=b->top&(~7); i>0; i-=8)\n\t\t\t\t{\n\t\t\t\tA[0]=B[0]; A[1]=B[1]; A[2]=B[2]; A[3]=B[3];\n\t\t\t\tA[4]=B[4]; A[5]=B[5]; A[6]=B[6]; A[7]=B[7];\n\t\t\t\tA+=8;\n\t\t\t\tB+=8;\n\t\t\t\t}\n\t\t\tswitch (b->top&7)\n\t\t\t\t{\n\t\t\tcase 7:\n\t\t\t\tA[6]=B[6];\n\t\t\tcase 6:\n\t\t\t\tA[5]=B[5];\n\t\t\tcase 5:\n\t\t\t\tA[4]=B[4];\n\t\t\tcase 4:\n\t\t\t\tA[3]=B[3];\n\t\t\tcase 3:\n\t\t\t\tA[2]=B[2];\n\t\t\tcase 2:\n\t\t\t\tA[1]=B[1];\n\t\t\tcase 1:\n\t\t\t\tA[0]=B[0];\n\t\t\tcase 0:\n\t\t\t\t;\n\t\t\t\t}\n\t\t\tFree(b->d);\n\t\t\t}\n\t\tb->d=a;\n\t\tb->max=words;\n\t\tB= &(b->d[b->top]);\n\t\tj=(b->max - b->top) & ~7;\n\t\tfor (i=0; i<j; i+=8)\n\t\t\t{\n\t\t\tB[0]=0; B[1]=0; B[2]=0; B[3]=0;\n\t\t\tB[4]=0; B[5]=0; B[6]=0; B[7]=0;\n\t\t\tB+=8;\n\t\t\t}\n\t\tj=(b->max - b->top) & 7;\n\t\tfor (i=0; i<j; i++)\n\t\t\t{\n\t\t\tB[0]=0;\n\t\t\tB++;\n\t\t\t}\n#else\n\t\t\tmemcpy(a->d,b->d,sizeof(b->d[0])*b->top);\n#endif\n\t\t}\n\treturn(b);\n\t}'] |
25,989 | 0 | https://github.com/libav/libav/blob/e5b0fc170f85b00f7dd0ac514918fb5c95253d39/libavcodec/bitstream.h/#L139 | static inline uint64_t get_val(BitstreamContext *bc, unsigned n)
{
#ifdef BITSTREAM_READER_LE
uint64_t ret = bc->bits & ((UINT64_C(1) << n) - 1);
bc->bits >>= n;
#else
uint64_t ret = bc->bits >> (64 - n);
bc->bits <<= n;
#endif
bc->bits_left -= n;
return ret;
} | ['static int decode_tones_info(BitstreamContext *bc, Atrac3pChanUnitCtx *ctx,\n int num_channels, AVCodecContext *avctx)\n{\n int ch_num, i, ret;\n int band_has_tones[16];\n for (ch_num = 0; ch_num < num_channels; ch_num++)\n memset(ctx->channels[ch_num].tones_info, 0,\n sizeof(*ctx->channels[ch_num].tones_info) * ATRAC3P_SUBBANDS);\n ctx->waves_info->tones_present = bitstream_read_bit(bc);\n if (!ctx->waves_info->tones_present)\n return 0;\n memset(ctx->waves_info->waves, 0, sizeof(ctx->waves_info->waves));\n ctx->waves_info->amplitude_mode = bitstream_read_bit(bc);\n if (!ctx->waves_info->amplitude_mode) {\n avpriv_report_missing_feature(avctx, "GHA amplitude mode 0");\n return AVERROR_PATCHWELCOME;\n }\n ctx->waves_info->num_tone_bands =\n bitstream_read_vlc(bc, tone_vlc_tabs[0].table,\n tone_vlc_tabs[0].bits, 1) + 1;\n if (num_channels == 2) {\n get_subband_flags(bc, ctx->waves_info->tone_sharing, ctx->waves_info->num_tone_bands);\n get_subband_flags(bc, ctx->waves_info->tone_master, ctx->waves_info->num_tone_bands);\n if (get_subband_flags(bc, ctx->waves_info->phase_shift,\n ctx->waves_info->num_tone_bands)) {\n avpriv_report_missing_feature(avctx, "GHA Phase shifting");\n return AVERROR_PATCHWELCOME;\n }\n }\n ctx->waves_info->tones_index = 0;\n for (ch_num = 0; ch_num < num_channels; ch_num++) {\n for (i = 0; i < ctx->waves_info->num_tone_bands; i++)\n band_has_tones[i] = !ch_num ? 1 : !ctx->waves_info->tone_sharing[i];\n decode_tones_envelope(bc, ctx, ch_num, band_has_tones);\n if ((ret = decode_band_numwavs(bc, ctx, ch_num, band_has_tones,\n avctx)) < 0)\n return ret;\n decode_tones_frequency(bc, ctx, ch_num, band_has_tones);\n decode_tones_amplitude(bc, ctx, ch_num, band_has_tones);\n decode_tones_phase(bc, ctx, ch_num, band_has_tones);\n }\n if (num_channels == 2) {\n for (i = 0; i < ctx->waves_info->num_tone_bands; i++) {\n if (ctx->waves_info->tone_sharing[i])\n ctx->channels[1].tones_info[i] = ctx->channels[0].tones_info[i];\n if (ctx->waves_info->tone_master[i])\n FFSWAP(Atrac3pWavesData, ctx->channels[0].tones_info[i],\n ctx->channels[1].tones_info[i]);\n }\n }\n return 0;\n}', 'static void decode_tones_phase(BitstreamContext *bc, Atrac3pChanUnitCtx *ctx,\n int ch_num, int band_has_tones[])\n{\n int sb, i;\n Atrac3pWaveParam *wparam;\n Atrac3pWavesData *dst = ctx->channels[ch_num].tones_info;\n for (sb = 0; sb < ctx->waves_info->num_tone_bands; sb++) {\n if (!band_has_tones[sb])\n continue;\n wparam = &ctx->waves_info->waves[dst[sb].start_index];\n for (i = 0; i < dst[sb].num_wavs; i++)\n wparam[i].phase_index = bitstream_read(bc, 5);\n }\n}', 'static void decode_tones_envelope(BitstreamContext *bc, Atrac3pChanUnitCtx *ctx,\n int ch_num, int band_has_tones[])\n{\n int sb;\n Atrac3pWavesData *dst = ctx->channels[ch_num].tones_info;\n Atrac3pWavesData *ref = ctx->channels[0].tones_info;\n if (!ch_num || !bitstream_read_bit(bc)) {\n for (sb = 0; sb < ctx->waves_info->num_tone_bands; sb++) {\n if (!band_has_tones[sb])\n continue;\n dst[sb].pend_env.has_start_point = bitstream_read_bit(bc);\n dst[sb].pend_env.start_pos = dst[sb].pend_env.has_start_point\n ? bitstream_read(bc, 5) : -1;\n dst[sb].pend_env.has_stop_point = bitstream_read_bit(bc);\n dst[sb].pend_env.stop_pos = dst[sb].pend_env.has_stop_point\n ? bitstream_read(bc, 5) : 32;\n }\n } else {\n for (sb = 0; sb < ctx->waves_info->num_tone_bands; sb++) {\n if (!band_has_tones[sb])\n continue;\n dst[sb].pend_env.has_start_point = ref[sb].pend_env.has_start_point;\n dst[sb].pend_env.has_stop_point = ref[sb].pend_env.has_stop_point;\n dst[sb].pend_env.start_pos = ref[sb].pend_env.start_pos;\n dst[sb].pend_env.stop_pos = ref[sb].pend_env.stop_pos;\n }\n }\n}', 'static inline unsigned bitstream_read_bit(BitstreamContext *bc)\n{\n if (!bc->bits_left)\n refill_64(bc);\n return get_val(bc, 1);\n}', 'static inline uint64_t get_val(BitstreamContext *bc, unsigned n)\n{\n#ifdef BITSTREAM_READER_LE\n uint64_t ret = bc->bits & ((UINT64_C(1) << n) - 1);\n bc->bits >>= n;\n#else\n uint64_t ret = bc->bits >> (64 - n);\n bc->bits <<= n;\n#endif\n bc->bits_left -= n;\n return ret;\n}'] |
25,990 | 0 | https://github.com/libav/libav/blob/a92be9b856bd11b081041c43c25d442028fe9a63/libavcodec/mpegvideo_enc.c/#L1096 | static int estimate_best_b_count(MpegEncContext *s)
{
AVCodec *codec = avcodec_find_encoder(s->avctx->codec_id);
AVCodecContext *c = avcodec_alloc_context3(NULL);
AVFrame input[FF_MAX_B_FRAMES + 2];
const int scale = s->avctx->brd_scale;
int i, j, out_size, p_lambda, b_lambda, lambda2;
int outbuf_size = s->width * s->height;
uint8_t *outbuf = av_malloc(outbuf_size);
int64_t best_rd = INT64_MAX;
int best_b_count = -1;
assert(scale >= 0 && scale <= 3);
p_lambda = s->last_lambda_for[AV_PICTURE_TYPE_P];
b_lambda = s->last_lambda_for[AV_PICTURE_TYPE_B];
if (!b_lambda)
b_lambda = p_lambda;
lambda2 = (b_lambda * b_lambda + (1 << FF_LAMBDA_SHIFT) / 2) >>
FF_LAMBDA_SHIFT;
c->width = s->width >> scale;
c->height = s->height >> scale;
c->flags = CODEC_FLAG_QSCALE | CODEC_FLAG_PSNR |
CODEC_FLAG_INPUT_PRESERVED ;
c->flags |= s->avctx->flags & CODEC_FLAG_QPEL;
c->mb_decision = s->avctx->mb_decision;
c->me_cmp = s->avctx->me_cmp;
c->mb_cmp = s->avctx->mb_cmp;
c->me_sub_cmp = s->avctx->me_sub_cmp;
c->pix_fmt = PIX_FMT_YUV420P;
c->time_base = s->avctx->time_base;
c->max_b_frames = s->max_b_frames;
if (avcodec_open2(c, codec, NULL) < 0)
return -1;
for (i = 0; i < s->max_b_frames + 2; i++) {
int ysize = c->width * c->height;
int csize = (c->width / 2) * (c->height / 2);
Picture pre_input, *pre_input_ptr = i ? s->input_picture[i - 1] :
s->next_picture_ptr;
avcodec_get_frame_defaults(&input[i]);
input[i].data[0] = av_malloc(ysize + 2 * csize);
input[i].data[1] = input[i].data[0] + ysize;
input[i].data[2] = input[i].data[1] + csize;
input[i].linesize[0] = c->width;
input[i].linesize[1] =
input[i].linesize[2] = c->width / 2;
if (pre_input_ptr && (!i || s->input_picture[i - 1])) {
pre_input = *pre_input_ptr;
if (pre_input.f.type != FF_BUFFER_TYPE_SHARED && i) {
pre_input.f.data[0] += INPLACE_OFFSET;
pre_input.f.data[1] += INPLACE_OFFSET;
pre_input.f.data[2] += INPLACE_OFFSET;
}
s->dsp.shrink[scale](input[i].data[0], input[i].linesize[0],
pre_input.f.data[0], pre_input.f.linesize[0],
c->width, c->height);
s->dsp.shrink[scale](input[i].data[1], input[i].linesize[1],
pre_input.f.data[1], pre_input.f.linesize[1],
c->width >> 1, c->height >> 1);
s->dsp.shrink[scale](input[i].data[2], input[i].linesize[2],
pre_input.f.data[2], pre_input.f.linesize[2],
c->width >> 1, c->height >> 1);
}
}
for (j = 0; j < s->max_b_frames + 1; j++) {
int64_t rd = 0;
if (!s->input_picture[j])
break;
c->error[0] = c->error[1] = c->error[2] = 0;
input[0].pict_type = AV_PICTURE_TYPE_I;
input[0].quality = 1 * FF_QP2LAMBDA;
out_size = avcodec_encode_video(c, outbuf,
outbuf_size, &input[0]);
for (i = 0; i < s->max_b_frames + 1; i++) {
int is_p = i % (j + 1) == j || i == s->max_b_frames;
input[i + 1].pict_type = is_p ?
AV_PICTURE_TYPE_P : AV_PICTURE_TYPE_B;
input[i + 1].quality = is_p ? p_lambda : b_lambda;
out_size = avcodec_encode_video(c, outbuf, outbuf_size,
&input[i + 1]);
rd += (out_size * lambda2) >> (FF_LAMBDA_SHIFT - 3);
}
while (out_size) {
out_size = avcodec_encode_video(c, outbuf, outbuf_size, NULL);
rd += (out_size * lambda2) >> (FF_LAMBDA_SHIFT - 3);
}
rd += c->error[0] + c->error[1] + c->error[2];
if (rd < best_rd) {
best_rd = rd;
best_b_count = j;
}
}
av_freep(&outbuf);
avcodec_close(c);
av_freep(&c);
for (i = 0; i < s->max_b_frames + 2; i++) {
av_freep(&input[i].data[0]);
}
return best_b_count;
} | ['static int estimate_best_b_count(MpegEncContext *s)\n{\n AVCodec *codec = avcodec_find_encoder(s->avctx->codec_id);\n AVCodecContext *c = avcodec_alloc_context3(NULL);\n AVFrame input[FF_MAX_B_FRAMES + 2];\n const int scale = s->avctx->brd_scale;\n int i, j, out_size, p_lambda, b_lambda, lambda2;\n int outbuf_size = s->width * s->height;\n uint8_t *outbuf = av_malloc(outbuf_size);\n int64_t best_rd = INT64_MAX;\n int best_b_count = -1;\n assert(scale >= 0 && scale <= 3);\n p_lambda = s->last_lambda_for[AV_PICTURE_TYPE_P];\n b_lambda = s->last_lambda_for[AV_PICTURE_TYPE_B];\n if (!b_lambda)\n b_lambda = p_lambda;\n lambda2 = (b_lambda * b_lambda + (1 << FF_LAMBDA_SHIFT) / 2) >>\n FF_LAMBDA_SHIFT;\n c->width = s->width >> scale;\n c->height = s->height >> scale;\n c->flags = CODEC_FLAG_QSCALE | CODEC_FLAG_PSNR |\n CODEC_FLAG_INPUT_PRESERVED ;\n c->flags |= s->avctx->flags & CODEC_FLAG_QPEL;\n c->mb_decision = s->avctx->mb_decision;\n c->me_cmp = s->avctx->me_cmp;\n c->mb_cmp = s->avctx->mb_cmp;\n c->me_sub_cmp = s->avctx->me_sub_cmp;\n c->pix_fmt = PIX_FMT_YUV420P;\n c->time_base = s->avctx->time_base;\n c->max_b_frames = s->max_b_frames;\n if (avcodec_open2(c, codec, NULL) < 0)\n return -1;\n for (i = 0; i < s->max_b_frames + 2; i++) {\n int ysize = c->width * c->height;\n int csize = (c->width / 2) * (c->height / 2);\n Picture pre_input, *pre_input_ptr = i ? s->input_picture[i - 1] :\n s->next_picture_ptr;\n avcodec_get_frame_defaults(&input[i]);\n input[i].data[0] = av_malloc(ysize + 2 * csize);\n input[i].data[1] = input[i].data[0] + ysize;\n input[i].data[2] = input[i].data[1] + csize;\n input[i].linesize[0] = c->width;\n input[i].linesize[1] =\n input[i].linesize[2] = c->width / 2;\n if (pre_input_ptr && (!i || s->input_picture[i - 1])) {\n pre_input = *pre_input_ptr;\n if (pre_input.f.type != FF_BUFFER_TYPE_SHARED && i) {\n pre_input.f.data[0] += INPLACE_OFFSET;\n pre_input.f.data[1] += INPLACE_OFFSET;\n pre_input.f.data[2] += INPLACE_OFFSET;\n }\n s->dsp.shrink[scale](input[i].data[0], input[i].linesize[0],\n pre_input.f.data[0], pre_input.f.linesize[0],\n c->width, c->height);\n s->dsp.shrink[scale](input[i].data[1], input[i].linesize[1],\n pre_input.f.data[1], pre_input.f.linesize[1],\n c->width >> 1, c->height >> 1);\n s->dsp.shrink[scale](input[i].data[2], input[i].linesize[2],\n pre_input.f.data[2], pre_input.f.linesize[2],\n c->width >> 1, c->height >> 1);\n }\n }\n for (j = 0; j < s->max_b_frames + 1; j++) {\n int64_t rd = 0;\n if (!s->input_picture[j])\n break;\n c->error[0] = c->error[1] = c->error[2] = 0;\n input[0].pict_type = AV_PICTURE_TYPE_I;\n input[0].quality = 1 * FF_QP2LAMBDA;\n out_size = avcodec_encode_video(c, outbuf,\n outbuf_size, &input[0]);\n for (i = 0; i < s->max_b_frames + 1; i++) {\n int is_p = i % (j + 1) == j || i == s->max_b_frames;\n input[i + 1].pict_type = is_p ?\n AV_PICTURE_TYPE_P : AV_PICTURE_TYPE_B;\n input[i + 1].quality = is_p ? p_lambda : b_lambda;\n out_size = avcodec_encode_video(c, outbuf, outbuf_size,\n &input[i + 1]);\n rd += (out_size * lambda2) >> (FF_LAMBDA_SHIFT - 3);\n }\n while (out_size) {\n out_size = avcodec_encode_video(c, outbuf, outbuf_size, NULL);\n rd += (out_size * lambda2) >> (FF_LAMBDA_SHIFT - 3);\n }\n rd += c->error[0] + c->error[1] + c->error[2];\n if (rd < best_rd) {\n best_rd = rd;\n best_b_count = j;\n }\n }\n av_freep(&outbuf);\n avcodec_close(c);\n av_freep(&c);\n for (i = 0; i < s->max_b_frames + 2; i++) {\n av_freep(&input[i].data[0]);\n }\n return best_b_count;\n}', 'AVCodecContext *avcodec_alloc_context3(AVCodec *codec){\n AVCodecContext *avctx= av_malloc(sizeof(AVCodecContext));\n if(avctx==NULL) return NULL;\n if(avcodec_get_context_defaults3(avctx, codec) < 0){\n av_free(avctx);\n return NULL;\n }\n return avctx;\n}', 'void *av_malloc(size_t size)\n{\n void *ptr = NULL;\n#if CONFIG_MEMALIGN_HACK\n long diff;\n#endif\n if(size > (INT_MAX-32) )\n return NULL;\n#if CONFIG_MEMALIGN_HACK\n ptr = malloc(size+32);\n if(!ptr)\n return ptr;\n diff= ((-(long)ptr - 1)&31) + 1;\n ptr = (char*)ptr + diff;\n ((char*)ptr)[-1]= diff;\n#elif HAVE_POSIX_MEMALIGN\n if (posix_memalign(&ptr,32,size))\n ptr = NULL;\n#elif HAVE_MEMALIGN\n ptr = memalign(32,size);\n#else\n ptr = malloc(size);\n#endif\n return ptr;\n}'] |
25,991 | 0 | https://github.com/libav/libav/blob/8096fdf0b6886305ea1a8cb2c869ab2732cd8e11/libavformat/yop.c/#L63 | static int yop_read_header(AVFormatContext *s, AVFormatParameters *ap)
{
YopDecContext *yop = s->priv_data;
AVIOContext *pb = s->pb;
AVCodecContext *audio_dec, *video_dec;
AVStream *audio_stream, *video_stream;
int frame_rate, ret;
audio_stream = avformat_new_stream(s, NULL);
video_stream = avformat_new_stream(s, NULL);
video_stream->codec->extradata_size = 8;
video_stream->codec->extradata = av_mallocz(video_stream->codec->extradata_size +
FF_INPUT_BUFFER_PADDING_SIZE);
if (!video_stream->codec->extradata)
return AVERROR(ENOMEM);
audio_dec = audio_stream->codec;
audio_dec->codec_type = AVMEDIA_TYPE_AUDIO;
audio_dec->codec_id = CODEC_ID_ADPCM_IMA_WS;
audio_dec->channels = 1;
audio_dec->sample_rate = 22050;
video_dec = video_stream->codec;
video_dec->codec_type = AVMEDIA_TYPE_VIDEO;
video_dec->codec_id = CODEC_ID_YOP;
avio_skip(pb, 6);
frame_rate = avio_r8(pb);
yop->frame_size = avio_r8(pb) * 2048;
video_dec->width = avio_rl16(pb);
video_dec->height = avio_rl16(pb);
video_stream->sample_aspect_ratio = (AVRational){1, 2};
ret = avio_read(pb, video_dec->extradata, 8);
if (ret < 8)
return ret < 0 ? ret : AVERROR_EOF;
yop->palette_size = video_dec->extradata[0] * 3 + 4;
yop->audio_block_length = AV_RL16(video_dec->extradata + 6);
if (yop->audio_block_length < 920 ||
yop->audio_block_length + yop->palette_size >= yop->frame_size) {
av_log(s, AV_LOG_ERROR, "YOP has invalid header\n");
return AVERROR_INVALIDDATA;
}
avio_seek(pb, 2048, SEEK_SET);
av_set_pts_info(video_stream, 32, 1, frame_rate);
return 0;
} | ['static int yop_read_header(AVFormatContext *s, AVFormatParameters *ap)\n{\n YopDecContext *yop = s->priv_data;\n AVIOContext *pb = s->pb;\n AVCodecContext *audio_dec, *video_dec;\n AVStream *audio_stream, *video_stream;\n int frame_rate, ret;\n audio_stream = avformat_new_stream(s, NULL);\n video_stream = avformat_new_stream(s, NULL);\n video_stream->codec->extradata_size = 8;\n video_stream->codec->extradata = av_mallocz(video_stream->codec->extradata_size +\n FF_INPUT_BUFFER_PADDING_SIZE);\n if (!video_stream->codec->extradata)\n return AVERROR(ENOMEM);\n audio_dec = audio_stream->codec;\n audio_dec->codec_type = AVMEDIA_TYPE_AUDIO;\n audio_dec->codec_id = CODEC_ID_ADPCM_IMA_WS;\n audio_dec->channels = 1;\n audio_dec->sample_rate = 22050;\n video_dec = video_stream->codec;\n video_dec->codec_type = AVMEDIA_TYPE_VIDEO;\n video_dec->codec_id = CODEC_ID_YOP;\n avio_skip(pb, 6);\n frame_rate = avio_r8(pb);\n yop->frame_size = avio_r8(pb) * 2048;\n video_dec->width = avio_rl16(pb);\n video_dec->height = avio_rl16(pb);\n video_stream->sample_aspect_ratio = (AVRational){1, 2};\n ret = avio_read(pb, video_dec->extradata, 8);\n if (ret < 8)\n return ret < 0 ? ret : AVERROR_EOF;\n yop->palette_size = video_dec->extradata[0] * 3 + 4;\n yop->audio_block_length = AV_RL16(video_dec->extradata + 6);\n if (yop->audio_block_length < 920 ||\n yop->audio_block_length + yop->palette_size >= yop->frame_size) {\n av_log(s, AV_LOG_ERROR, "YOP has invalid header\\n");\n return AVERROR_INVALIDDATA;\n }\n avio_seek(pb, 2048, SEEK_SET);\n av_set_pts_info(video_stream, 32, 1, frame_rate);\n return 0;\n}', 'AVStream *avformat_new_stream(AVFormatContext *s, AVCodec *c)\n{\n AVStream *st;\n int i;\n AVStream **streams;\n if (s->nb_streams >= INT_MAX/sizeof(*streams))\n return NULL;\n streams = av_realloc(s->streams, (s->nb_streams + 1) * sizeof(*streams));\n if (!streams)\n return NULL;\n s->streams = streams;\n st = av_mallocz(sizeof(AVStream));\n if (!st)\n return NULL;\n if (!(st->info = av_mallocz(sizeof(*st->info)))) {\n av_free(st);\n return NULL;\n }\n st->codec = avcodec_alloc_context3(c);\n if (s->iformat) {\n st->codec->bit_rate = 0;\n }\n st->index = s->nb_streams;\n st->start_time = AV_NOPTS_VALUE;\n st->duration = AV_NOPTS_VALUE;\n st->cur_dts = 0;\n st->first_dts = AV_NOPTS_VALUE;\n st->probe_packets = MAX_PROBE_PACKETS;\n av_set_pts_info(st, 33, 1, 90000);\n st->last_IP_pts = AV_NOPTS_VALUE;\n for(i=0; i<MAX_REORDER_DELAY+1; i++)\n st->pts_buffer[i]= AV_NOPTS_VALUE;\n st->reference_dts = AV_NOPTS_VALUE;\n st->sample_aspect_ratio = (AVRational){0,1};\n s->streams[s->nb_streams++] = st;\n return st;\n}'] |
25,992 | 0 | https://github.com/libav/libav/blob/3ec394ea823c2a6e65a6abbdb2041ce1c66964f8/libavcodec/h264.c/#L1487 | static void h264_luma_dc_dequant_idct_c(DCTELEM *block, int qp, int qmul){
#define stride 16
int i;
int temp[16];
static const int x_offset[4]={0, 1*stride, 4* stride, 5*stride};
static const int y_offset[4]={0, 2*stride, 8* stride, 10*stride};
for(i=0; i<4; i++){
const int offset= y_offset[i];
const int z0= block[offset+stride*0] + block[offset+stride*4];
const int z1= block[offset+stride*0] - block[offset+stride*4];
const int z2= block[offset+stride*1] - block[offset+stride*5];
const int z3= block[offset+stride*1] + block[offset+stride*5];
temp[4*i+0]= z0+z3;
temp[4*i+1]= z1+z2;
temp[4*i+2]= z1-z2;
temp[4*i+3]= z0-z3;
}
for(i=0; i<4; i++){
const int offset= x_offset[i];
const int z0= temp[4*0+i] + temp[4*2+i];
const int z1= temp[4*0+i] - temp[4*2+i];
const int z2= temp[4*1+i] - temp[4*3+i];
const int z3= temp[4*1+i] + temp[4*3+i];
block[stride*0 +offset]= ((((z0 + z3)*qmul + 128 ) >> 8));
block[stride*2 +offset]= ((((z1 + z2)*qmul + 128 ) >> 8));
block[stride*8 +offset]= ((((z1 - z2)*qmul + 128 ) >> 8));
block[stride*10+offset]= ((((z0 - z3)*qmul + 128 ) >> 8));
}
} | ['static void h264_luma_dc_dequant_idct_c(DCTELEM *block, int qp, int qmul){\n#define stride 16\n int i;\n int temp[16];\n static const int x_offset[4]={0, 1*stride, 4* stride, 5*stride};\n static const int y_offset[4]={0, 2*stride, 8* stride, 10*stride};\n for(i=0; i<4; i++){\n const int offset= y_offset[i];\n const int z0= block[offset+stride*0] + block[offset+stride*4];\n const int z1= block[offset+stride*0] - block[offset+stride*4];\n const int z2= block[offset+stride*1] - block[offset+stride*5];\n const int z3= block[offset+stride*1] + block[offset+stride*5];\n temp[4*i+0]= z0+z3;\n temp[4*i+1]= z1+z2;\n temp[4*i+2]= z1-z2;\n temp[4*i+3]= z0-z3;\n }\n for(i=0; i<4; i++){\n const int offset= x_offset[i];\n const int z0= temp[4*0+i] + temp[4*2+i];\n const int z1= temp[4*0+i] - temp[4*2+i];\n const int z2= temp[4*1+i] - temp[4*3+i];\n const int z3= temp[4*1+i] + temp[4*3+i];\n block[stride*0 +offset]= ((((z0 + z3)*qmul + 128 ) >> 8));\n block[stride*2 +offset]= ((((z1 + z2)*qmul + 128 ) >> 8));\n block[stride*8 +offset]= ((((z1 - z2)*qmul + 128 ) >> 8));\n block[stride*10+offset]= ((((z0 - z3)*qmul + 128 ) >> 8));\n }\n}'] |
25,993 | 0 | https://github.com/openssl/openssl/blob/adf652436a42a5132e708f8003b7621647f0a404/crypto/bn/bn_lib.c/#L233 | static BN_ULONG *bn_expand_internal(const BIGNUM *b, int words)
{
BN_ULONG *a = NULL;
bn_check_top(b);
if (words > (INT_MAX / (4 * BN_BITS2))) {
BNerr(BN_F_BN_EXPAND_INTERNAL, BN_R_BIGNUM_TOO_LONG);
return NULL;
}
if (BN_get_flags(b, BN_FLG_STATIC_DATA)) {
BNerr(BN_F_BN_EXPAND_INTERNAL, BN_R_EXPAND_ON_STATIC_BIGNUM_DATA);
return NULL;
}
if (BN_get_flags(b, BN_FLG_SECURE))
a = OPENSSL_secure_zalloc(words * sizeof(*a));
else
a = OPENSSL_zalloc(words * sizeof(*a));
if (a == NULL) {
BNerr(BN_F_BN_EXPAND_INTERNAL, ERR_R_MALLOC_FAILURE);
return NULL;
}
assert(b->top <= words);
if (b->top > 0)
memcpy(a, b->d, sizeof(*a) * b->top);
return a;
} | ['static int test_expmodone(void)\n{\n int ret = 0, i;\n BIGNUM *r = BN_new();\n BIGNUM *a = BN_new();\n BIGNUM *p = BN_new();\n BIGNUM *m = BN_new();\n if (!TEST_ptr(r)\n || !TEST_ptr(a)\n || !TEST_ptr(p)\n || !TEST_ptr(p)\n || !TEST_ptr(m)\n || !TEST_true(BN_set_word(a, 1))\n || !TEST_true(BN_set_word(p, 0))\n || !TEST_true(BN_set_word(m, 1)))\n goto err;\n for (i = 0; i < 2; i++) {\n if (!TEST_true(BN_mod_exp(r, a, p, m, NULL))\n || !TEST_BN_eq_zero(r)\n || !TEST_true(BN_mod_exp_mont(r, a, p, m, NULL, NULL))\n || !TEST_BN_eq_zero(r)\n || !TEST_true(BN_mod_exp_mont_consttime(r, a, p, m, NULL, NULL))\n || !TEST_BN_eq_zero(r)\n || !TEST_true(BN_mod_exp_mont_word(r, 1, p, m, NULL, NULL))\n || !TEST_BN_eq_zero(r)\n || !TEST_true(BN_mod_exp_simple(r, a, p, m, NULL))\n || !TEST_BN_eq_zero(r)\n || !TEST_true(BN_mod_exp_recp(r, a, p, m, NULL))\n || !TEST_BN_eq_zero(r))\n goto err;\n if (i == 0)\n BN_set_negative(m, 1);\n }\n ret = 1;\nerr:\n BN_free(r);\n BN_free(a);\n BN_free(p);\n BN_free(m);\n return ret;\n}', 'int BN_set_word(BIGNUM *a, BN_ULONG w)\n{\n bn_check_top(a);\n if (bn_expand(a, (int)sizeof(BN_ULONG) * 8) == NULL)\n return 0;\n a->neg = 0;\n a->d[0] = w;\n a->top = (w ? 1 : 0);\n bn_check_top(a);\n return 1;\n}', 'static ossl_inline BIGNUM *bn_expand(BIGNUM *a, int bits)\n{\n if (bits > (INT_MAX - BN_BITS2 + 1))\n return NULL;\n if (((bits+BN_BITS2-1)/BN_BITS2) <= (a)->dmax)\n return a;\n return bn_expand2((a),(bits+BN_BITS2-1)/BN_BITS2);\n}', 'BIGNUM *bn_expand2(BIGNUM *b, int words)\n{\n bn_check_top(b);\n if (words > b->dmax) {\n BN_ULONG *a = bn_expand_internal(b, words);\n if (!a)\n return NULL;\n if (b->d) {\n OPENSSL_cleanse(b->d, b->dmax * sizeof(b->d[0]));\n bn_free_d(b);\n }\n b->d = a;\n b->dmax = words;\n }\n bn_check_top(b);\n return b;\n}', 'static BN_ULONG *bn_expand_internal(const BIGNUM *b, int words)\n{\n BN_ULONG *a = NULL;\n bn_check_top(b);\n if (words > (INT_MAX / (4 * BN_BITS2))) {\n BNerr(BN_F_BN_EXPAND_INTERNAL, BN_R_BIGNUM_TOO_LONG);\n return NULL;\n }\n if (BN_get_flags(b, BN_FLG_STATIC_DATA)) {\n BNerr(BN_F_BN_EXPAND_INTERNAL, BN_R_EXPAND_ON_STATIC_BIGNUM_DATA);\n return NULL;\n }\n if (BN_get_flags(b, BN_FLG_SECURE))\n a = OPENSSL_secure_zalloc(words * sizeof(*a));\n else\n a = OPENSSL_zalloc(words * sizeof(*a));\n if (a == NULL) {\n BNerr(BN_F_BN_EXPAND_INTERNAL, ERR_R_MALLOC_FAILURE);\n return NULL;\n }\n assert(b->top <= words);\n if (b->top > 0)\n memcpy(a, b->d, sizeof(*a) * b->top);\n return a;\n}'] |
25,994 | 1 | https://github.com/openssl/openssl/blob/b3618f44a7b8504bfb0a64e8a33e6b8e56d4d516/crypto/bn/bn_ctx.c/#L273 | static unsigned int BN_STACK_pop(BN_STACK *st)
{
return st->indexes[--(st->depth)];
} | ['int test_gf2m_mod_mul(BIO *bp, BN_CTX *ctx)\n{\n BIGNUM *a, *b[2], *c, *d, *e, *f, *g, *h;\n int i, j, ret = 0;\n int p0[] = { 163, 7, 6, 3, 0, -1 };\n int p1[] = { 193, 15, 0, -1 };\n a = BN_new();\n b[0] = BN_new();\n b[1] = BN_new();\n c = BN_new();\n d = BN_new();\n e = BN_new();\n f = BN_new();\n g = BN_new();\n h = BN_new();\n BN_GF2m_arr2poly(p0, b[0]);\n BN_GF2m_arr2poly(p1, b[1]);\n for (i = 0; i < num0; i++) {\n BN_bntest_rand(a, 1024, 0, 0);\n BN_bntest_rand(c, 1024, 0, 0);\n BN_bntest_rand(d, 1024, 0, 0);\n for (j = 0; j < 2; j++) {\n BN_GF2m_mod_mul(e, a, c, b[j], ctx);\n BN_GF2m_add(f, a, d);\n BN_GF2m_mod_mul(g, f, c, b[j], ctx);\n BN_GF2m_mod_mul(h, d, c, b[j], ctx);\n BN_GF2m_add(f, e, g);\n BN_GF2m_add(f, f, h);\n if (!BN_is_zero(f)) {\n fprintf(stderr,\n "GF(2^m) modular multiplication test failed!\\n");\n goto err;\n }\n }\n }\n ret = 1;\n err:\n BN_free(a);\n BN_free(b[0]);\n BN_free(b[1]);\n BN_free(c);\n BN_free(d);\n BN_free(e);\n BN_free(f);\n BN_free(g);\n BN_free(h);\n return ret;\n}', 'int BN_GF2m_mod_mul(BIGNUM *r, const BIGNUM *a, const BIGNUM *b,\n const BIGNUM *p, BN_CTX *ctx)\n{\n int ret = 0;\n const int max = BN_num_bits(p) + 1;\n int *arr = NULL;\n bn_check_top(a);\n bn_check_top(b);\n bn_check_top(p);\n if ((arr = OPENSSL_malloc(sizeof(*arr) * max)) == NULL)\n goto err;\n ret = BN_GF2m_poly2arr(p, arr, max);\n if (!ret || ret > max) {\n BNerr(BN_F_BN_GF2M_MOD_MUL, BN_R_INVALID_LENGTH);\n goto err;\n }\n ret = BN_GF2m_mod_mul_arr(r, a, b, arr, ctx);\n bn_check_top(r);\n err:\n OPENSSL_free(arr);\n return ret;\n}', 'int BN_GF2m_mod_mul_arr(BIGNUM *r, const BIGNUM *a, const BIGNUM *b,\n const int p[], BN_CTX *ctx)\n{\n int zlen, i, j, k, ret = 0;\n BIGNUM *s;\n BN_ULONG x1, x0, y1, y0, zz[4];\n bn_check_top(a);\n bn_check_top(b);\n if (a == b) {\n return BN_GF2m_mod_sqr_arr(r, a, p, ctx);\n }\n BN_CTX_start(ctx);\n if ((s = BN_CTX_get(ctx)) == NULL)\n goto err;\n zlen = a->top + b->top + 4;\n if (!bn_wexpand(s, zlen))\n goto err;\n s->top = zlen;\n for (i = 0; i < zlen; i++)\n s->d[i] = 0;\n for (j = 0; j < b->top; j += 2) {\n y0 = b->d[j];\n y1 = ((j + 1) == b->top) ? 0 : b->d[j + 1];\n for (i = 0; i < a->top; i += 2) {\n x0 = a->d[i];\n x1 = ((i + 1) == a->top) ? 0 : a->d[i + 1];\n bn_GF2m_mul_2x2(zz, x1, x0, y1, y0);\n for (k = 0; k < 4; k++)\n s->d[i + j + k] ^= zz[k];\n }\n }\n bn_correct_top(s);\n if (BN_GF2m_mod_arr(r, s, p))\n ret = 1;\n bn_check_top(r);\n err:\n BN_CTX_end(ctx);\n return ret;\n}', 'void BN_CTX_start(BN_CTX *ctx)\n{\n CTXDBG_ENTRY("BN_CTX_start", ctx);\n if (ctx->err_stack || ctx->too_many)\n ctx->err_stack++;\n else if (!BN_STACK_push(&ctx->stack, ctx->used)) {\n BNerr(BN_F_BN_CTX_START, BN_R_TOO_MANY_TEMPORARY_VARIABLES);\n ctx->err_stack++;\n }\n CTXDBG_EXIT(ctx);\n}', 'void BN_CTX_end(BN_CTX *ctx)\n{\n CTXDBG_ENTRY("BN_CTX_end", ctx);\n if (ctx->err_stack)\n ctx->err_stack--;\n else {\n unsigned int fp = BN_STACK_pop(&ctx->stack);\n if (fp < ctx->used)\n BN_POOL_release(&ctx->pool, ctx->used - fp);\n ctx->used = fp;\n ctx->too_many = 0;\n }\n CTXDBG_EXIT(ctx);\n}', 'static unsigned int BN_STACK_pop(BN_STACK *st)\n{\n return st->indexes[--(st->depth)];\n}'] |
25,995 | 0 | https://github.com/openssl/openssl/blob/fa9bb6201e1d16ba8ccab938833d140ef81a7f73/crypto/bn/bn_ctx.c/#L327 | static unsigned int BN_STACK_pop(BN_STACK *st)
{
return st->indexes[--(st->depth)];
} | ['int BN_mod_exp2_mont(BIGNUM *rr, const BIGNUM *a1, const BIGNUM *p1,\n const BIGNUM *a2, const BIGNUM *p2, const BIGNUM *m,\n BN_CTX *ctx, BN_MONT_CTX *in_mont)\n{\n int i, j, bits, b, bits1, bits2, ret =\n 0, wpos1, wpos2, window1, window2, wvalue1, wvalue2;\n int r_is_one = 1;\n BIGNUM *d, *r;\n const BIGNUM *a_mod_m;\n BIGNUM *val1[TABLE_SIZE], *val2[TABLE_SIZE];\n BN_MONT_CTX *mont = NULL;\n bn_check_top(a1);\n bn_check_top(p1);\n bn_check_top(a2);\n bn_check_top(p2);\n bn_check_top(m);\n if (!(m->d[0] & 1)) {\n BNerr(BN_F_BN_MOD_EXP2_MONT, BN_R_CALLED_WITH_EVEN_MODULUS);\n return (0);\n }\n bits1 = BN_num_bits(p1);\n bits2 = BN_num_bits(p2);\n if ((bits1 == 0) && (bits2 == 0)) {\n ret = BN_one(rr);\n return ret;\n }\n bits = (bits1 > bits2) ? bits1 : bits2;\n BN_CTX_start(ctx);\n d = BN_CTX_get(ctx);\n r = BN_CTX_get(ctx);\n val1[0] = BN_CTX_get(ctx);\n val2[0] = BN_CTX_get(ctx);\n if (!d || !r || !val1[0] || !val2[0])\n goto err;\n if (in_mont != NULL)\n mont = in_mont;\n else {\n if ((mont = BN_MONT_CTX_new()) == NULL)\n goto err;\n if (!BN_MONT_CTX_set(mont, m, ctx))\n goto err;\n }\n window1 = BN_window_bits_for_exponent_size(bits1);\n window2 = BN_window_bits_for_exponent_size(bits2);\n if (a1->neg || BN_ucmp(a1, m) >= 0) {\n if (!BN_mod(val1[0], a1, m, ctx))\n goto err;\n a_mod_m = val1[0];\n } else\n a_mod_m = a1;\n if (BN_is_zero(a_mod_m)) {\n BN_zero(rr);\n ret = 1;\n goto err;\n }\n if (!BN_to_montgomery(val1[0], a_mod_m, mont, ctx))\n goto err;\n if (window1 > 1) {\n if (!BN_mod_mul_montgomery(d, val1[0], val1[0], mont, ctx))\n goto err;\n j = 1 << (window1 - 1);\n for (i = 1; i < j; i++) {\n if (((val1[i] = BN_CTX_get(ctx)) == NULL) ||\n !BN_mod_mul_montgomery(val1[i], val1[i - 1], d, mont, ctx))\n goto err;\n }\n }\n if (a2->neg || BN_ucmp(a2, m) >= 0) {\n if (!BN_mod(val2[0], a2, m, ctx))\n goto err;\n a_mod_m = val2[0];\n } else\n a_mod_m = a2;\n if (BN_is_zero(a_mod_m)) {\n BN_zero(rr);\n ret = 1;\n goto err;\n }\n if (!BN_to_montgomery(val2[0], a_mod_m, mont, ctx))\n goto err;\n if (window2 > 1) {\n if (!BN_mod_mul_montgomery(d, val2[0], val2[0], mont, ctx))\n goto err;\n j = 1 << (window2 - 1);\n for (i = 1; i < j; i++) {\n if (((val2[i] = BN_CTX_get(ctx)) == NULL) ||\n !BN_mod_mul_montgomery(val2[i], val2[i - 1], d, mont, ctx))\n goto err;\n }\n }\n r_is_one = 1;\n wvalue1 = 0;\n wvalue2 = 0;\n wpos1 = 0;\n wpos2 = 0;\n if (!BN_to_montgomery(r, BN_value_one(), mont, ctx))\n goto err;\n for (b = bits - 1; b >= 0; b--) {\n if (!r_is_one) {\n if (!BN_mod_mul_montgomery(r, r, r, mont, ctx))\n goto err;\n }\n if (!wvalue1)\n if (BN_is_bit_set(p1, b)) {\n i = b - window1 + 1;\n while (!BN_is_bit_set(p1, i))\n i++;\n wpos1 = i;\n wvalue1 = 1;\n for (i = b - 1; i >= wpos1; i--) {\n wvalue1 <<= 1;\n if (BN_is_bit_set(p1, i))\n wvalue1++;\n }\n }\n if (!wvalue2)\n if (BN_is_bit_set(p2, b)) {\n i = b - window2 + 1;\n while (!BN_is_bit_set(p2, i))\n i++;\n wpos2 = i;\n wvalue2 = 1;\n for (i = b - 1; i >= wpos2; i--) {\n wvalue2 <<= 1;\n if (BN_is_bit_set(p2, i))\n wvalue2++;\n }\n }\n if (wvalue1 && b == wpos1) {\n if (!BN_mod_mul_montgomery(r, r, val1[wvalue1 >> 1], mont, ctx))\n goto err;\n wvalue1 = 0;\n r_is_one = 0;\n }\n if (wvalue2 && b == wpos2) {\n if (!BN_mod_mul_montgomery(r, r, val2[wvalue2 >> 1], mont, ctx))\n goto err;\n wvalue2 = 0;\n r_is_one = 0;\n }\n }\n if (!BN_from_montgomery(rr, r, mont, ctx))\n goto err;\n ret = 1;\n err:\n if (in_mont == NULL)\n BN_MONT_CTX_free(mont);\n BN_CTX_end(ctx);\n bn_check_top(rr);\n return (ret);\n}', 'void BN_CTX_start(BN_CTX *ctx)\n{\n CTXDBG_ENTRY("BN_CTX_start", ctx);\n if (ctx->err_stack || ctx->too_many)\n ctx->err_stack++;\n else if (!BN_STACK_push(&ctx->stack, ctx->used)) {\n BNerr(BN_F_BN_CTX_START, BN_R_TOO_MANY_TEMPORARY_VARIABLES);\n ctx->err_stack++;\n }\n CTXDBG_EXIT(ctx);\n}', 'int BN_to_montgomery(BIGNUM *r, const BIGNUM *a, BN_MONT_CTX *mont,\n BN_CTX *ctx)\n{\n return BN_mod_mul_montgomery(r, a, &(mont->RR), mont, ctx);\n}', 'int BN_mod_mul_montgomery(BIGNUM *r, const BIGNUM *a, const BIGNUM *b,\n BN_MONT_CTX *mont, BN_CTX *ctx)\n{\n BIGNUM *tmp;\n int ret = 0;\n#if defined(OPENSSL_BN_ASM_MONT) && defined(MONT_WORD)\n int num = mont->N.top;\n if (num > 1 && a->top == num && b->top == num) {\n if (bn_wexpand(r, num) == NULL)\n return (0);\n if (bn_mul_mont(r->d, a->d, b->d, mont->N.d, mont->n0, num)) {\n r->neg = a->neg ^ b->neg;\n r->top = num;\n bn_correct_top(r);\n return (1);\n }\n }\n#endif\n BN_CTX_start(ctx);\n tmp = BN_CTX_get(ctx);\n if (tmp == NULL)\n goto err;\n bn_check_top(tmp);\n if (a == b) {\n if (!BN_sqr(tmp, a, ctx))\n goto err;\n } else {\n if (!BN_mul(tmp, a, b, ctx))\n goto err;\n }\n#ifdef MONT_WORD\n if (!BN_from_montgomery_word(r, tmp, mont))\n goto err;\n#else\n if (!BN_from_montgomery(r, tmp, mont, ctx))\n goto err;\n#endif\n bn_check_top(r);\n ret = 1;\n err:\n BN_CTX_end(ctx);\n return (ret);\n}', 'int BN_mul(BIGNUM *r, const BIGNUM *a, const BIGNUM *b, BN_CTX *ctx)\n{\n int ret = 0;\n int top, al, bl;\n BIGNUM *rr;\n#if defined(BN_MUL_COMBA) || defined(BN_RECURSION)\n int i;\n#endif\n#ifdef BN_RECURSION\n BIGNUM *t = NULL;\n int j = 0, k;\n#endif\n bn_check_top(a);\n bn_check_top(b);\n bn_check_top(r);\n al = a->top;\n bl = b->top;\n if ((al == 0) || (bl == 0)) {\n BN_zero(r);\n return (1);\n }\n top = al + bl;\n BN_CTX_start(ctx);\n if ((r == a) || (r == b)) {\n if ((rr = BN_CTX_get(ctx)) == NULL)\n goto err;\n } else\n rr = r;\n rr->neg = a->neg ^ b->neg;\n#if defined(BN_MUL_COMBA) || defined(BN_RECURSION)\n i = al - bl;\n#endif\n#ifdef BN_MUL_COMBA\n if (i == 0) {\n# if 0\n if (al == 4) {\n if (bn_wexpand(rr, 8) == NULL)\n goto err;\n rr->top = 8;\n bn_mul_comba4(rr->d, a->d, b->d);\n goto end;\n }\n# endif\n if (al == 8) {\n if (bn_wexpand(rr, 16) == NULL)\n goto err;\n rr->top = 16;\n bn_mul_comba8(rr->d, a->d, b->d);\n goto end;\n }\n }\n#endif\n#ifdef BN_RECURSION\n if ((al >= BN_MULL_SIZE_NORMAL) && (bl >= BN_MULL_SIZE_NORMAL)) {\n if (i >= -1 && i <= 1) {\n if (i >= 0) {\n j = BN_num_bits_word((BN_ULONG)al);\n }\n if (i == -1) {\n j = BN_num_bits_word((BN_ULONG)bl);\n }\n j = 1 << (j - 1);\n assert(j <= al || j <= bl);\n k = j + j;\n t = BN_CTX_get(ctx);\n if (t == NULL)\n goto err;\n if (al > j || bl > j) {\n if (bn_wexpand(t, k * 4) == NULL)\n goto err;\n if (bn_wexpand(rr, k * 4) == NULL)\n goto err;\n bn_mul_part_recursive(rr->d, a->d, b->d,\n j, al - j, bl - j, t->d);\n } else {\n if (bn_wexpand(t, k * 2) == NULL)\n goto err;\n if (bn_wexpand(rr, k * 2) == NULL)\n goto err;\n bn_mul_recursive(rr->d, a->d, b->d, j, al - j, bl - j, t->d);\n }\n rr->top = top;\n goto end;\n }\n# if 0\n if (i == 1 && !BN_get_flags(b, BN_FLG_STATIC_DATA)) {\n BIGNUM *tmp_bn = (BIGNUM *)b;\n if (bn_wexpand(tmp_bn, al) == NULL)\n goto err;\n tmp_bn->d[bl] = 0;\n bl++;\n i--;\n } else if (i == -1 && !BN_get_flags(a, BN_FLG_STATIC_DATA)) {\n BIGNUM *tmp_bn = (BIGNUM *)a;\n if (bn_wexpand(tmp_bn, bl) == NULL)\n goto err;\n tmp_bn->d[al] = 0;\n al++;\n i++;\n }\n if (i == 0) {\n j = BN_num_bits_word((BN_ULONG)al);\n j = 1 << (j - 1);\n k = j + j;\n t = BN_CTX_get(ctx);\n if (al == j) {\n if (bn_wexpand(t, k * 2) == NULL)\n goto err;\n if (bn_wexpand(rr, k * 2) == NULL)\n goto err;\n bn_mul_recursive(rr->d, a->d, b->d, al, t->d);\n } else {\n if (bn_wexpand(t, k * 4) == NULL)\n goto err;\n if (bn_wexpand(rr, k * 4) == NULL)\n goto err;\n bn_mul_part_recursive(rr->d, a->d, b->d, al - j, j, t->d);\n }\n rr->top = top;\n goto end;\n }\n# endif\n }\n#endif\n if (bn_wexpand(rr, top) == NULL)\n goto err;\n rr->top = top;\n bn_mul_normal(rr->d, a->d, al, b->d, bl);\n#if defined(BN_MUL_COMBA) || defined(BN_RECURSION)\n end:\n#endif\n bn_correct_top(rr);\n if (r != rr)\n BN_copy(r, rr);\n ret = 1;\n err:\n bn_check_top(r);\n BN_CTX_end(ctx);\n return (ret);\n}', 'void BN_CTX_end(BN_CTX *ctx)\n{\n CTXDBG_ENTRY("BN_CTX_end", ctx);\n if (ctx->err_stack)\n ctx->err_stack--;\n else {\n unsigned int fp = BN_STACK_pop(&ctx->stack);\n if (fp < ctx->used)\n BN_POOL_release(&ctx->pool, ctx->used - fp);\n ctx->used = fp;\n ctx->too_many = 0;\n }\n CTXDBG_EXIT(ctx);\n}', 'static unsigned int BN_STACK_pop(BN_STACK *st)\n{\n return st->indexes[--(st->depth)];\n}'] |
25,996 | 0 | https://github.com/openssl/openssl/blob/02cba628daa7fea959c561531a8a984756bdf41c/crypto/lhash/lhash.c/#L123 | void *OPENSSL_LH_delete(OPENSSL_LHASH *lh, const void *data)
{
unsigned long hash;
OPENSSL_LH_NODE *nn, **rn;
void *ret;
lh->error = 0;
rn = getrn(lh, data, &hash);
if (*rn == NULL) {
lh->num_no_delete++;
return (NULL);
} else {
nn = *rn;
*rn = nn->next;
ret = nn->data;
OPENSSL_free(nn);
lh->num_delete++;
}
lh->num_items--;
if ((lh->num_nodes > MIN_NODES) &&
(lh->down_load >= (lh->num_items * LH_LOAD_MULT / lh->num_nodes)))
contract(lh);
return (ret);
} | ['static int tls_construct_encrypted_extensions(SSL *s, WPACKET *pkt)\n{\n int al;\n if (!tls_construct_extensions(s, pkt, EXT_TLS1_3_ENCRYPTED_EXTENSIONS,\n NULL, 0, &al)) {\n ssl3_send_alert(s, SSL3_AL_FATAL, al);\n SSLerr(SSL_F_TLS_CONSTRUCT_ENCRYPTED_EXTENSIONS, ERR_R_INTERNAL_ERROR);\n ssl3_send_alert(s, SSL3_AL_FATAL, al);\n return 0;\n }\n return 1;\n}', 'int ssl3_send_alert(SSL *s, int level, int desc)\n{\n desc = s->method->ssl3_enc->alert_value(desc);\n if (s->version == SSL3_VERSION && desc == SSL_AD_PROTOCOL_VERSION)\n desc = SSL_AD_HANDSHAKE_FAILURE;\n if (desc < 0)\n return -1;\n if ((level == SSL3_AL_FATAL) && (s->session != NULL))\n SSL_CTX_remove_session(s->session_ctx, s->session);\n s->s3->alert_dispatch = 1;\n s->s3->send_alert[0] = level;\n s->s3->send_alert[1] = desc;\n if (!RECORD_LAYER_write_pending(&s->rlayer)) {\n return s->method->ssl_dispatch_alert(s);\n }\n return -1;\n}', 'int SSL_CTX_remove_session(SSL_CTX *ctx, SSL_SESSION *c)\n{\n return remove_session_lock(ctx, c, 1);\n}', 'static int remove_session_lock(SSL_CTX *ctx, SSL_SESSION *c, int lck)\n{\n SSL_SESSION *r;\n int ret = 0;\n if ((c != NULL) && (c->session_id_length != 0)) {\n if (lck)\n CRYPTO_THREAD_write_lock(ctx->lock);\n if ((r = lh_SSL_SESSION_retrieve(ctx->sessions, c)) == c) {\n ret = 1;\n r = lh_SSL_SESSION_delete(ctx->sessions, c);\n SSL_SESSION_list_remove(ctx, c);\n }\n c->not_resumable = 1;\n if (lck)\n CRYPTO_THREAD_unlock(ctx->lock);\n if (ret)\n SSL_SESSION_free(r);\n if (ctx->remove_session_cb != NULL)\n ctx->remove_session_cb(ctx, c);\n } else\n ret = 0;\n return (ret);\n}', 'DEFINE_LHASH_OF(SSL_SESSION)', 'void *OPENSSL_LH_delete(OPENSSL_LHASH *lh, const void *data)\n{\n unsigned long hash;\n OPENSSL_LH_NODE *nn, **rn;\n void *ret;\n lh->error = 0;\n rn = getrn(lh, data, &hash);\n if (*rn == NULL) {\n lh->num_no_delete++;\n return (NULL);\n } else {\n nn = *rn;\n *rn = nn->next;\n ret = nn->data;\n OPENSSL_free(nn);\n lh->num_delete++;\n }\n lh->num_items--;\n if ((lh->num_nodes > MIN_NODES) &&\n (lh->down_load >= (lh->num_items * LH_LOAD_MULT / lh->num_nodes)))\n contract(lh);\n return (ret);\n}'] |
25,997 | 0 | https://github.com/openssl/openssl/blob/95dc05bc6d0dfe0f3f3681f5e27afbc3f7a35eea/crypto/asn1/a_object.c/#L216 | int i2t_ASN1_OBJECT(char *buf, int buf_len, ASN1_OBJECT *a)
{
int i,idx=0,n=0,len,nid;
unsigned long l;
unsigned char *p;
const char *s;
char tbuf[32];
if (buf_len <= 0) return(0);
if ((a == NULL) || (a->data == NULL))
{
buf[0]='\0';
return(0);
}
nid=OBJ_obj2nid(a);
if (nid == NID_undef)
{
len=a->length;
p=a->data;
idx=0;
l=0;
while (idx < a->length)
{
l|=(p[idx]&0x7f);
if (!(p[idx] & 0x80)) break;
l<<=7L;
idx++;
}
idx++;
i=(int)(l/40);
if (i > 2) i=2;
l-=(long)(i*40);
sprintf(tbuf,"%d.%ld",i,l);
i=strlen(tbuf);
strncpy(buf,tbuf,buf_len);
buf_len-=i;
buf+=i;
n+=i;
l=0;
for (; idx<len; idx++)
{
l|=p[idx]&0x7f;
if (!(p[idx] & 0x80))
{
sprintf(tbuf,".%ld",l);
i=strlen(tbuf);
if (buf_len > 0)
strncpy(buf,tbuf,buf_len);
buf_len-=i;
buf+=i;
n+=i;
l=0;
}
l<<=7L;
}
}
else
{
s=OBJ_nid2ln(nid);
if (s == NULL)
s=OBJ_nid2sn(nid);
strncpy(buf,s,buf_len);
n=strlen(s);
}
buf[buf_len-1]='\0';
return(n);
} | ['static STACK *i2v_ext_ku(X509V3_EXT_METHOD *method, STACK *eku,\n\t STACK *ext_list)\n{\nint i;\nASN1_OBJECT *obj;\nchar obj_tmp[80];\nfor(i = 0; i < sk_num(eku); i++) {\n\tobj = (ASN1_OBJECT *)sk_value(eku, i);\n\ti2t_ASN1_OBJECT(obj_tmp, 80, obj);\n\tX509V3_add_value(NULL, obj_tmp, &ext_list);\n}\nreturn ext_list;\n}', 'int i2t_ASN1_OBJECT(char *buf, int buf_len, ASN1_OBJECT *a)\n\t{\n\tint i,idx=0,n=0,len,nid;\n\tunsigned long l;\n\tunsigned char *p;\n\tconst char *s;\n\tchar tbuf[32];\n\tif (buf_len <= 0) return(0);\n\tif ((a == NULL) || (a->data == NULL))\n\t\t{\n\t\tbuf[0]=\'\\0\';\n\t\treturn(0);\n\t\t}\n\tnid=OBJ_obj2nid(a);\n\tif (nid == NID_undef)\n\t\t{\n\t\tlen=a->length;\n\t\tp=a->data;\n\t\tidx=0;\n\t\tl=0;\n\t\twhile (idx < a->length)\n\t\t\t{\n\t\t\tl|=(p[idx]&0x7f);\n\t\t\tif (!(p[idx] & 0x80)) break;\n\t\t\tl<<=7L;\n\t\t\tidx++;\n\t\t\t}\n\t\tidx++;\n\t\ti=(int)(l/40);\n\t\tif (i > 2) i=2;\n\t\tl-=(long)(i*40);\n\t\tsprintf(tbuf,"%d.%ld",i,l);\n\t\ti=strlen(tbuf);\n\t\tstrncpy(buf,tbuf,buf_len);\n\t\tbuf_len-=i;\n\t\tbuf+=i;\n\t\tn+=i;\n\t\tl=0;\n\t\tfor (; idx<len; idx++)\n\t\t\t{\n\t\t\tl|=p[idx]&0x7f;\n\t\t\tif (!(p[idx] & 0x80))\n\t\t\t\t{\n\t\t\t\tsprintf(tbuf,".%ld",l);\n\t\t\t\ti=strlen(tbuf);\n\t\t\t\tif (buf_len > 0)\n\t\t\t\t\tstrncpy(buf,tbuf,buf_len);\n\t\t\t\tbuf_len-=i;\n\t\t\t\tbuf+=i;\n\t\t\t\tn+=i;\n\t\t\t\tl=0;\n\t\t\t\t}\n\t\t\tl<<=7L;\n\t\t\t}\n\t\t}\n\telse\n\t\t{\n\t\ts=OBJ_nid2ln(nid);\n\t\tif (s == NULL)\n\t\t\ts=OBJ_nid2sn(nid);\n\t\tstrncpy(buf,s,buf_len);\n\t\tn=strlen(s);\n\t\t}\n\tbuf[buf_len-1]=\'\\0\';\n\treturn(n);\n\t}'] |
25,998 | 0 | https://github.com/openssl/openssl/blob/6fc1748ec65c94c195d02b59556434e36a5f7651/crypto/lhash/lhash.c/#L164 | static void doall_util_fn(OPENSSL_LHASH *lh, int use_arg,
OPENSSL_LH_DOALL_FUNC func,
OPENSSL_LH_DOALL_FUNCARG func_arg, void *arg)
{
int i;
OPENSSL_LH_NODE *a, *n;
if (lh == NULL)
return;
for (i = lh->num_nodes - 1; i >= 0; i--) {
a = lh->b[i];
while (a != NULL) {
n = a->next;
if (use_arg)
func_arg(a->data, arg);
else
func(a->data);
a = n;
}
}
} | ['static int execute_test_session(SSL_SESSION_TEST_FIXTURE fix)\n{\n SSL_CTX *sctx = NULL, *cctx = NULL;\n SSL *serverssl1 = NULL, *clientssl1 = NULL;\n SSL *serverssl2 = NULL, *clientssl2 = NULL;\n#ifndef OPENSSL_NO_TLS1_1\n SSL *serverssl3 = NULL, *clientssl3 = NULL;\n#endif\n SSL_SESSION *sess1 = NULL, *sess2 = NULL;\n int testresult = 0;\n if (!create_ssl_ctx_pair(TLS_server_method(), TLS_client_method(), &sctx,\n &cctx, cert, privkey)) {\n printf("Unable to create SSL_CTX pair\\n");\n return 0;\n }\n#ifndef OPENSSL_NO_TLS1_2\n SSL_CTX_set_min_proto_version(cctx, TLS1_2_VERSION);\n#endif\n if (fix.use_ext_cache) {\n SSL_CTX_sess_set_new_cb(cctx, new_session_cb);\n SSL_CTX_sess_set_remove_cb(cctx, remove_session_cb);\n }\n if (fix.use_int_cache) {\n SSL_CTX_set_session_cache_mode(cctx, SSL_SESS_CACHE_CLIENT);\n } else {\n SSL_CTX_set_session_cache_mode(cctx,\n SSL_SESS_CACHE_CLIENT\n | SSL_SESS_CACHE_NO_INTERNAL_STORE);\n }\n if (!create_ssl_objects(sctx, cctx, &serverssl1, &clientssl1, NULL,\n NULL)) {\n printf("Unable to create SSL objects\\n");\n goto end;\n }\n if (!create_ssl_connection(serverssl1, clientssl1)) {\n printf("Unable to create SSL connection\\n");\n goto end;\n }\n sess1 = SSL_get1_session(clientssl1);\n if (sess1 == NULL) {\n printf("Unexpected NULL session\\n");\n goto end;\n }\n if (fix.use_int_cache && SSL_CTX_add_session(cctx, sess1)) {\n printf("Unexpected success adding session to cache\\n");\n goto end;\n }\n if (fix.use_ext_cache && (new_called != 1 || remove_called != 0)) {\n printf("Session not added to cache\\n");\n goto end;\n }\n if (!create_ssl_objects(sctx, cctx, &serverssl2, &clientssl2, NULL, NULL)) {\n printf("Unable to create second SSL objects\\n");\n goto end;\n }\n if (!create_ssl_connection(serverssl2, clientssl2)) {\n printf("Unable to create second SSL connection\\n");\n goto end;\n }\n sess2 = SSL_get1_session(clientssl2);\n if (sess2 == NULL) {\n printf("Unexpected NULL session from clientssl2\\n");\n goto end;\n }\n if (fix.use_ext_cache && (new_called != 2 || remove_called != 0)) {\n printf("Remove session callback unexpectedly called\\n");\n goto end;\n }\n if (!SSL_set_session(clientssl2, sess1)) {\n printf("Unexpected failure setting session\\n");\n goto end;\n }\n if (fix.use_ext_cache && (new_called != 2 || remove_called != 1)) {\n printf("Failed to call callback to remove session\\n");\n goto end;\n }\n if (SSL_get_session(clientssl2) != sess1) {\n printf("Unexpected session found\\n");\n goto end;\n }\n if (fix.use_int_cache) {\n if (!SSL_CTX_add_session(cctx, sess2)) {\n printf("Unexpected failure adding session to cache\\n");\n goto end;\n }\n if (!SSL_CTX_remove_session(cctx, sess2)) {\n printf("Unexpected failure removing session from cache\\n");\n goto end;\n }\n if (fix.use_ext_cache)\n remove_called--;\n }\n if (SSL_CTX_remove_session(cctx, sess2)) {\n printf("Unexpected success removing session from cache\\n");\n goto end;\n }\n if (fix.use_ext_cache && (new_called != 2 || remove_called != 2)) {\n printf("Failed to call callback to remove session #2\\n");\n goto end;\n }\n#if !defined(OPENSSL_NO_TLS1_1) && !defined(OPENSSL_NO_TLS1_2)\n SSL_CTX_set_max_proto_version(sctx, TLS1_1_VERSION);\n if (!create_ssl_objects(sctx, cctx, &serverssl3, &clientssl3, NULL, NULL)) {\n printf("Unable to create third SSL objects\\n");\n goto end;\n }\n if (!SSL_set_session(clientssl3, sess1)) {\n printf("Unable to set session for third connection\\n");\n goto end;\n }\n if (create_ssl_connection(serverssl3, clientssl3)) {\n printf("Unable to create third SSL connection\\n");\n goto end;\n }\n if (fix.use_ext_cache && (new_called != 2 || remove_called != 3)) {\n printf("Failed to call callback to remove session #2\\n");\n goto end;\n }\n if (fix.use_int_cache && !SSL_CTX_add_session(cctx, sess2)) {\n printf("Unexpected failure adding session to cache #2\\n");\n goto end;\n }\n#endif\n testresult = 1;\n end:\n SSL_free(serverssl1);\n SSL_free(clientssl1);\n SSL_free(serverssl2);\n SSL_free(clientssl2);\n#ifndef OPENSSL_NO_TLS1_1\n SSL_free(serverssl3);\n SSL_free(clientssl3);\n#endif\n SSL_SESSION_free(sess1);\n SSL_SESSION_free(sess2);\n if (new_called >= 1)\n SSL_SESSION_free(sess1);\n if (new_called >= 2)\n SSL_SESSION_free(sess2);\n SSL_CTX_free(sctx);\n SSL_CTX_free(cctx);\n return testresult;\n}', 'int create_ssl_objects(SSL_CTX *serverctx, SSL_CTX *clientctx, SSL **sssl,\n SSL **cssl, BIO *s_to_c_fbio, BIO *c_to_s_fbio)\n{\n SSL *serverssl, *clientssl;\n BIO *s_to_c_bio = NULL, *c_to_s_bio = NULL;\n if (*sssl == NULL)\n serverssl = SSL_new(serverctx);\n else\n serverssl = *sssl;\n if (*cssl == NULL)\n clientssl = SSL_new(clientctx);\n else\n clientssl = *cssl;\n if (serverssl == NULL || clientssl == NULL) {\n printf("Failed to create SSL object\\n");\n goto error;\n }\n if (SSL_is_dtls(clientssl)) {\n s_to_c_bio = BIO_new(bio_s_mempacket_test());\n c_to_s_bio = BIO_new(bio_s_mempacket_test());;\n } else {\n s_to_c_bio = BIO_new(BIO_s_mem());\n c_to_s_bio = BIO_new(BIO_s_mem());\n }\n if (s_to_c_bio == NULL || c_to_s_bio == NULL) {\n printf("Failed to create mem BIOs\\n");\n goto error;\n }\n if (s_to_c_fbio != NULL)\n s_to_c_bio = BIO_push(s_to_c_fbio, s_to_c_bio);\n if (c_to_s_fbio != NULL)\n c_to_s_bio = BIO_push(c_to_s_fbio, c_to_s_bio);\n if (s_to_c_bio == NULL || c_to_s_bio == NULL) {\n printf("Failed to create chained BIOs\\n");\n goto error;\n }\n BIO_set_mem_eof_return(s_to_c_bio, -1);\n BIO_set_mem_eof_return(c_to_s_bio, -1);\n BIO_up_ref(s_to_c_bio);\n BIO_up_ref(c_to_s_bio);\n SSL_set_bio(serverssl, c_to_s_bio, s_to_c_bio);\n SSL_set_bio(clientssl, s_to_c_bio, c_to_s_bio);\n s_to_c_bio = c_to_s_bio = NULL;\n s_to_c_fbio = c_to_s_fbio = NULL;\n *sssl = serverssl;\n *cssl = clientssl;\n return 1;\n error:\n SSL_free(serverssl);\n SSL_free(clientssl);\n BIO_free(s_to_c_bio);\n BIO_free(c_to_s_bio);\n BIO_free(s_to_c_fbio);\n BIO_free(c_to_s_fbio);\n return 0;\n}', 'SSL *SSL_new(SSL_CTX *ctx)\n{\n SSL *s;\n if (ctx == NULL) {\n SSLerr(SSL_F_SSL_NEW, SSL_R_NULL_SSL_CTX);\n return (NULL);\n }\n if (ctx->method == NULL) {\n SSLerr(SSL_F_SSL_NEW, SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION);\n return (NULL);\n }\n s = OPENSSL_zalloc(sizeof(*s));\n if (s == NULL)\n goto err;\n s->lock = CRYPTO_THREAD_lock_new();\n if (s->lock == NULL) {\n SSLerr(SSL_F_SSL_NEW, ERR_R_MALLOC_FAILURE);\n OPENSSL_free(s);\n return NULL;\n }\n RECORD_LAYER_init(&s->rlayer, s);\n s->options = ctx->options;\n s->dane.flags = ctx->dane.flags;\n s->min_proto_version = ctx->min_proto_version;\n s->max_proto_version = ctx->max_proto_version;\n s->mode = ctx->mode;\n s->max_cert_list = ctx->max_cert_list;\n s->references = 1;\n s->cert = ssl_cert_dup(ctx->cert);\n if (s->cert == NULL)\n goto err;\n RECORD_LAYER_set_read_ahead(&s->rlayer, ctx->read_ahead);\n s->msg_callback = ctx->msg_callback;\n s->msg_callback_arg = ctx->msg_callback_arg;\n s->verify_mode = ctx->verify_mode;\n s->not_resumable_session_cb = ctx->not_resumable_session_cb;\n s->sid_ctx_length = ctx->sid_ctx_length;\n OPENSSL_assert(s->sid_ctx_length <= sizeof s->sid_ctx);\n memcpy(&s->sid_ctx, &ctx->sid_ctx, sizeof(s->sid_ctx));\n s->verify_callback = ctx->default_verify_callback;\n s->generate_session_id = ctx->generate_session_id;\n s->param = X509_VERIFY_PARAM_new();\n if (s->param == NULL)\n goto err;\n X509_VERIFY_PARAM_inherit(s->param, ctx->param);\n s->quiet_shutdown = ctx->quiet_shutdown;\n s->max_send_fragment = ctx->max_send_fragment;\n s->split_send_fragment = ctx->split_send_fragment;\n s->max_pipelines = ctx->max_pipelines;\n if (s->max_pipelines > 1)\n RECORD_LAYER_set_read_ahead(&s->rlayer, 1);\n if (ctx->default_read_buf_len > 0)\n SSL_set_default_read_buffer_len(s, ctx->default_read_buf_len);\n SSL_CTX_up_ref(ctx);\n s->ctx = ctx;\n s->tlsext_debug_cb = 0;\n s->tlsext_debug_arg = NULL;\n s->tlsext_ticket_expected = 0;\n s->tlsext_status_type = ctx->tlsext_status_type;\n s->tlsext_status_expected = 0;\n s->tlsext_ocsp_ids = NULL;\n s->tlsext_ocsp_exts = NULL;\n s->tlsext_ocsp_resp = NULL;\n s->tlsext_ocsp_resplen = -1;\n SSL_CTX_up_ref(ctx);\n s->initial_ctx = ctx;\n#ifndef OPENSSL_NO_EC\n if (ctx->tlsext_ecpointformatlist) {\n s->tlsext_ecpointformatlist =\n OPENSSL_memdup(ctx->tlsext_ecpointformatlist,\n ctx->tlsext_ecpointformatlist_length);\n if (!s->tlsext_ecpointformatlist)\n goto err;\n s->tlsext_ecpointformatlist_length =\n ctx->tlsext_ecpointformatlist_length;\n }\n if (ctx->tlsext_ellipticcurvelist) {\n s->tlsext_ellipticcurvelist =\n OPENSSL_memdup(ctx->tlsext_ellipticcurvelist,\n ctx->tlsext_ellipticcurvelist_length);\n if (!s->tlsext_ellipticcurvelist)\n goto err;\n s->tlsext_ellipticcurvelist_length =\n ctx->tlsext_ellipticcurvelist_length;\n }\n#endif\n#ifndef OPENSSL_NO_NEXTPROTONEG\n s->next_proto_negotiated = NULL;\n#endif\n if (s->ctx->alpn_client_proto_list) {\n s->alpn_client_proto_list =\n OPENSSL_malloc(s->ctx->alpn_client_proto_list_len);\n if (s->alpn_client_proto_list == NULL)\n goto err;\n memcpy(s->alpn_client_proto_list, s->ctx->alpn_client_proto_list,\n s->ctx->alpn_client_proto_list_len);\n s->alpn_client_proto_list_len = s->ctx->alpn_client_proto_list_len;\n }\n s->verified_chain = NULL;\n s->verify_result = X509_V_OK;\n s->default_passwd_callback = ctx->default_passwd_callback;\n s->default_passwd_callback_userdata = ctx->default_passwd_callback_userdata;\n s->method = ctx->method;\n if (!s->method->ssl_new(s))\n goto err;\n s->server = (ctx->method->ssl_accept == ssl_undefined_function) ? 0 : 1;\n if (!SSL_clear(s))\n goto err;\n if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data))\n goto err;\n#ifndef OPENSSL_NO_PSK\n s->psk_client_callback = ctx->psk_client_callback;\n s->psk_server_callback = ctx->psk_server_callback;\n#endif\n s->job = NULL;\n#ifndef OPENSSL_NO_CT\n if (!SSL_set_ct_validation_callback(s, ctx->ct_validation_callback,\n ctx->ct_validation_callback_arg))\n goto err;\n#endif\n return s;\n err:\n SSL_free(s);\n SSLerr(SSL_F_SSL_NEW, ERR_R_MALLOC_FAILURE);\n return NULL;\n}', 'void SSL_free(SSL *s)\n{\n int i;\n if (s == NULL)\n return;\n CRYPTO_atomic_add(&s->references, -1, &i, s->lock);\n REF_PRINT_COUNT("SSL", s);\n if (i > 0)\n return;\n REF_ASSERT_ISNT(i < 0);\n X509_VERIFY_PARAM_free(s->param);\n dane_final(&s->dane);\n CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);\n ssl_free_wbio_buffer(s);\n BIO_free_all(s->wbio);\n BIO_free_all(s->rbio);\n BUF_MEM_free(s->init_buf);\n sk_SSL_CIPHER_free(s->cipher_list);\n sk_SSL_CIPHER_free(s->cipher_list_by_id);\n if (s->session != NULL) {\n ssl_clear_bad_session(s);\n SSL_SESSION_free(s->session);\n }\n clear_ciphers(s);\n ssl_cert_free(s->cert);\n OPENSSL_free(s->tlsext_hostname);\n SSL_CTX_free(s->initial_ctx);\n#ifndef OPENSSL_NO_EC\n OPENSSL_free(s->tlsext_ecpointformatlist);\n OPENSSL_free(s->tlsext_ellipticcurvelist);\n#endif\n sk_X509_EXTENSION_pop_free(s->tlsext_ocsp_exts, X509_EXTENSION_free);\n#ifndef OPENSSL_NO_OCSP\n sk_OCSP_RESPID_pop_free(s->tlsext_ocsp_ids, OCSP_RESPID_free);\n#endif\n#ifndef OPENSSL_NO_CT\n SCT_LIST_free(s->scts);\n OPENSSL_free(s->tlsext_scts);\n#endif\n OPENSSL_free(s->tlsext_ocsp_resp);\n OPENSSL_free(s->alpn_client_proto_list);\n sk_X509_NAME_pop_free(s->client_CA, X509_NAME_free);\n sk_X509_pop_free(s->verified_chain, X509_free);\n if (s->method != NULL)\n s->method->ssl_free(s);\n RECORD_LAYER_release(&s->rlayer);\n SSL_CTX_free(s->ctx);\n ASYNC_WAIT_CTX_free(s->waitctx);\n#if !defined(OPENSSL_NO_NEXTPROTONEG)\n OPENSSL_free(s->next_proto_negotiated);\n#endif\n#ifndef OPENSSL_NO_SRTP\n sk_SRTP_PROTECTION_PROFILE_free(s->srtp_profiles);\n#endif\n CRYPTO_THREAD_lock_free(s->lock);\n OPENSSL_free(s);\n}', 'void SSL_CTX_free(SSL_CTX *a)\n{\n int i;\n if (a == NULL)\n return;\n CRYPTO_atomic_add(&a->references, -1, &i, a->lock);\n REF_PRINT_COUNT("SSL_CTX", a);\n if (i > 0)\n return;\n REF_ASSERT_ISNT(i < 0);\n X509_VERIFY_PARAM_free(a->param);\n dane_ctx_final(&a->dane);\n if (a->sessions != NULL)\n SSL_CTX_flush_sessions(a, 0);\n CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, a, &a->ex_data);\n lh_SSL_SESSION_free(a->sessions);\n X509_STORE_free(a->cert_store);\n#ifndef OPENSSL_NO_CT\n CTLOG_STORE_free(a->ctlog_store);\n#endif\n sk_SSL_CIPHER_free(a->cipher_list);\n sk_SSL_CIPHER_free(a->cipher_list_by_id);\n ssl_cert_free(a->cert);\n sk_X509_NAME_pop_free(a->client_CA, X509_NAME_free);\n sk_X509_pop_free(a->extra_certs, X509_free);\n a->comp_methods = NULL;\n#ifndef OPENSSL_NO_SRTP\n sk_SRTP_PROTECTION_PROFILE_free(a->srtp_profiles);\n#endif\n#ifndef OPENSSL_NO_SRP\n SSL_CTX_SRP_CTX_free(a);\n#endif\n#ifndef OPENSSL_NO_ENGINE\n ENGINE_finish(a->client_cert_engine);\n#endif\n#ifndef OPENSSL_NO_EC\n OPENSSL_free(a->tlsext_ecpointformatlist);\n OPENSSL_free(a->tlsext_ellipticcurvelist);\n#endif\n OPENSSL_free(a->alpn_client_proto_list);\n CRYPTO_THREAD_lock_free(a->lock);\n OPENSSL_free(a);\n}', 'void SSL_CTX_flush_sessions(SSL_CTX *s, long t)\n{\n unsigned long i;\n TIMEOUT_PARAM tp;\n tp.ctx = s;\n tp.cache = s->sessions;\n if (tp.cache == NULL)\n return;\n tp.time = t;\n CRYPTO_THREAD_write_lock(s->lock);\n i = lh_SSL_SESSION_get_down_load(s->sessions);\n lh_SSL_SESSION_set_down_load(s->sessions, 0);\n lh_SSL_SESSION_doall_TIMEOUT_PARAM(tp.cache, timeout_cb, &tp);\n lh_SSL_SESSION_set_down_load(s->sessions, i);\n CRYPTO_THREAD_unlock(s->lock);\n}', 'IMPLEMENT_LHASH_DOALL_ARG(SSL_SESSION, TIMEOUT_PARAM)', 'void OPENSSL_LH_doall_arg(OPENSSL_LHASH *lh, OPENSSL_LH_DOALL_FUNCARG func, void *arg)\n{\n doall_util_fn(lh, 1, (OPENSSL_LH_DOALL_FUNC)0, func, arg);\n}', 'static void doall_util_fn(OPENSSL_LHASH *lh, int use_arg,\n OPENSSL_LH_DOALL_FUNC func,\n OPENSSL_LH_DOALL_FUNCARG func_arg, void *arg)\n{\n int i;\n OPENSSL_LH_NODE *a, *n;\n if (lh == NULL)\n return;\n for (i = lh->num_nodes - 1; i >= 0; i--) {\n a = lh->b[i];\n while (a != NULL) {\n n = a->next;\n if (use_arg)\n func_arg(a->data, arg);\n else\n func(a->data);\n a = n;\n }\n }\n}'] |
25,999 | 0 | https://github.com/libav/libav/blob/3ec394ea823c2a6e65a6abbdb2041ce1c66964f8/ffmpeg.c/#L3158 | static void opt_output_file(const char *filename)
{
AVFormatContext *oc;
int use_video, use_audio, use_subtitle;
int input_has_video, input_has_audio, input_has_subtitle, i;
AVFormatParameters params, *ap = ¶ms;
if (!strcmp(filename, "-"))
filename = "pipe:";
oc = av_alloc_format_context();
if (!file_oformat) {
file_oformat = guess_format(NULL, filename, NULL);
if (!file_oformat) {
fprintf(stderr, "Unable to find a suitable output format for '%s'\n",
filename);
exit(1);
}
}
oc->oformat = file_oformat;
av_strlcpy(oc->filename, filename, sizeof(oc->filename));
if (!strcmp(file_oformat->name, "ffm") &&
av_strstart(filename, "http:", NULL)) {
if (read_ffserver_streams(oc, filename) < 0) {
fprintf(stderr, "Could not read stream parameters from '%s'\n", filename);
exit(1);
}
} else {
use_video = file_oformat->video_codec != CODEC_ID_NONE || video_stream_copy || video_codec_name;
use_audio = file_oformat->audio_codec != CODEC_ID_NONE || audio_stream_copy || audio_codec_name;
use_subtitle = file_oformat->subtitle_codec != CODEC_ID_NONE || subtitle_stream_copy || subtitle_codec_name;
if (nb_input_files > 0) {
check_audio_video_sub_inputs(&input_has_video, &input_has_audio,
&input_has_subtitle);
if (!input_has_video)
use_video = 0;
if (!input_has_audio)
use_audio = 0;
if (!input_has_subtitle)
use_subtitle = 0;
}
if (audio_disable) {
use_audio = 0;
}
if (video_disable) {
use_video = 0;
}
if (subtitle_disable) {
use_subtitle = 0;
}
if (use_video) {
new_video_stream(oc);
}
if (use_audio) {
new_audio_stream(oc);
}
if (use_subtitle) {
new_subtitle_stream(oc);
}
oc->timestamp = rec_timestamp;
if (str_title)
av_strlcpy(oc->title, str_title, sizeof(oc->title));
if (str_author)
av_strlcpy(oc->author, str_author, sizeof(oc->author));
if (str_copyright)
av_strlcpy(oc->copyright, str_copyright, sizeof(oc->copyright));
if (str_comment)
av_strlcpy(oc->comment, str_comment, sizeof(oc->comment));
if (str_album)
av_strlcpy(oc->album, str_album, sizeof(oc->album));
if (str_genre)
av_strlcpy(oc->genre, str_genre, sizeof(oc->genre));
}
output_files[nb_output_files++] = oc;
if (oc->oformat->flags & AVFMT_NEEDNUMBER) {
if (!av_filename_number_test(oc->filename)) {
print_error(oc->filename, AVERROR_NUMEXPECTED);
exit(1);
}
}
if (!(oc->oformat->flags & AVFMT_NOFILE)) {
if (!file_overwrite &&
(strchr(filename, ':') == NULL ||
filename[1] == ':' ||
av_strstart(filename, "file:", NULL))) {
if (url_exist(filename)) {
int c;
if ( !using_stdin ) {
fprintf(stderr,"File '%s' already exists. Overwrite ? [y/N] ", filename);
fflush(stderr);
c = getchar();
if (toupper(c) != 'Y') {
fprintf(stderr, "Not overwriting - exiting\n");
exit(1);
}
}
else {
fprintf(stderr,"File '%s' already exists. Exiting.\n", filename);
exit(1);
}
}
}
if (url_fopen(&oc->pb, filename, URL_WRONLY) < 0) {
fprintf(stderr, "Could not open '%s'\n", filename);
exit(1);
}
}
memset(ap, 0, sizeof(*ap));
if (av_set_parameters(oc, ap) < 0) {
fprintf(stderr, "%s: Invalid encoding parameters\n",
oc->filename);
exit(1);
}
oc->preload= (int)(mux_preload*AV_TIME_BASE);
oc->max_delay= (int)(mux_max_delay*AV_TIME_BASE);
oc->loop_output = loop_output;
for(i=0; i<opt_name_count; i++){
char buf[256];
const AVOption *opt;
const char *str= av_get_string(avformat_opts, opt_names[i], &opt, buf, sizeof(buf));
if(str && (opt->flags & AV_OPT_FLAG_ENCODING_PARAM))
av_set_string(oc, opt_names[i], str);
}
file_oformat = NULL;
file_iformat = NULL;
} | ['static void opt_output_file(const char *filename)\n{\n AVFormatContext *oc;\n int use_video, use_audio, use_subtitle;\n int input_has_video, input_has_audio, input_has_subtitle, i;\n AVFormatParameters params, *ap = ¶ms;\n if (!strcmp(filename, "-"))\n filename = "pipe:";\n oc = av_alloc_format_context();\n if (!file_oformat) {\n file_oformat = guess_format(NULL, filename, NULL);\n if (!file_oformat) {\n fprintf(stderr, "Unable to find a suitable output format for \'%s\'\\n",\n filename);\n exit(1);\n }\n }\n oc->oformat = file_oformat;\n av_strlcpy(oc->filename, filename, sizeof(oc->filename));\n if (!strcmp(file_oformat->name, "ffm") &&\n av_strstart(filename, "http:", NULL)) {\n if (read_ffserver_streams(oc, filename) < 0) {\n fprintf(stderr, "Could not read stream parameters from \'%s\'\\n", filename);\n exit(1);\n }\n } else {\n use_video = file_oformat->video_codec != CODEC_ID_NONE || video_stream_copy || video_codec_name;\n use_audio = file_oformat->audio_codec != CODEC_ID_NONE || audio_stream_copy || audio_codec_name;\n use_subtitle = file_oformat->subtitle_codec != CODEC_ID_NONE || subtitle_stream_copy || subtitle_codec_name;\n if (nb_input_files > 0) {\n check_audio_video_sub_inputs(&input_has_video, &input_has_audio,\n &input_has_subtitle);\n if (!input_has_video)\n use_video = 0;\n if (!input_has_audio)\n use_audio = 0;\n if (!input_has_subtitle)\n use_subtitle = 0;\n }\n if (audio_disable) {\n use_audio = 0;\n }\n if (video_disable) {\n use_video = 0;\n }\n if (subtitle_disable) {\n use_subtitle = 0;\n }\n if (use_video) {\n new_video_stream(oc);\n }\n if (use_audio) {\n new_audio_stream(oc);\n }\n if (use_subtitle) {\n new_subtitle_stream(oc);\n }\n oc->timestamp = rec_timestamp;\n if (str_title)\n av_strlcpy(oc->title, str_title, sizeof(oc->title));\n if (str_author)\n av_strlcpy(oc->author, str_author, sizeof(oc->author));\n if (str_copyright)\n av_strlcpy(oc->copyright, str_copyright, sizeof(oc->copyright));\n if (str_comment)\n av_strlcpy(oc->comment, str_comment, sizeof(oc->comment));\n if (str_album)\n av_strlcpy(oc->album, str_album, sizeof(oc->album));\n if (str_genre)\n av_strlcpy(oc->genre, str_genre, sizeof(oc->genre));\n }\n output_files[nb_output_files++] = oc;\n if (oc->oformat->flags & AVFMT_NEEDNUMBER) {\n if (!av_filename_number_test(oc->filename)) {\n print_error(oc->filename, AVERROR_NUMEXPECTED);\n exit(1);\n }\n }\n if (!(oc->oformat->flags & AVFMT_NOFILE)) {\n if (!file_overwrite &&\n (strchr(filename, \':\') == NULL ||\n filename[1] == \':\' ||\n av_strstart(filename, "file:", NULL))) {\n if (url_exist(filename)) {\n int c;\n if ( !using_stdin ) {\n fprintf(stderr,"File \'%s\' already exists. Overwrite ? [y/N] ", filename);\n fflush(stderr);\n c = getchar();\n if (toupper(c) != \'Y\') {\n fprintf(stderr, "Not overwriting - exiting\\n");\n exit(1);\n }\n }\n else {\n fprintf(stderr,"File \'%s\' already exists. Exiting.\\n", filename);\n exit(1);\n }\n }\n }\n if (url_fopen(&oc->pb, filename, URL_WRONLY) < 0) {\n fprintf(stderr, "Could not open \'%s\'\\n", filename);\n exit(1);\n }\n }\n memset(ap, 0, sizeof(*ap));\n if (av_set_parameters(oc, ap) < 0) {\n fprintf(stderr, "%s: Invalid encoding parameters\\n",\n oc->filename);\n exit(1);\n }\n oc->preload= (int)(mux_preload*AV_TIME_BASE);\n oc->max_delay= (int)(mux_max_delay*AV_TIME_BASE);\n oc->loop_output = loop_output;\n for(i=0; i<opt_name_count; i++){\n char buf[256];\n const AVOption *opt;\n const char *str= av_get_string(avformat_opts, opt_names[i], &opt, buf, sizeof(buf));\n if(str && (opt->flags & AV_OPT_FLAG_ENCODING_PARAM))\n av_set_string(oc, opt_names[i], str);\n }\n file_oformat = NULL;\n file_iformat = NULL;\n}', 'AVFormatContext *av_alloc_format_context(void)\n{\n AVFormatContext *ic;\n ic = av_malloc(sizeof(AVFormatContext));\n if (!ic) return ic;\n avformat_get_context_defaults(ic);\n ic->av_class = &av_format_context_class;\n return ic;\n}', 'void *av_malloc(unsigned int size)\n{\n void *ptr;\n#ifdef CONFIG_MEMALIGN_HACK\n long diff;\n#endif\n if(size > (INT_MAX-16) )\n return NULL;\n#ifdef CONFIG_MEMALIGN_HACK\n ptr = malloc(size+16);\n if(!ptr)\n return ptr;\n diff= ((-(long)ptr - 1)&15) + 1;\n ptr = (char*)ptr + diff;\n ((char*)ptr)[-1]= diff;\n#elif defined (HAVE_MEMALIGN)\n ptr = memalign(16,size);\n#else\n ptr = malloc(size);\n#endif\n return ptr;\n}'] |
26,000 | 0 | https://github.com/libav/libav/blob/a20639017bfca0490bb1799575714f22bf470b4f/libavcodec/mpegaudiodec.c/#L692 | static void dct32(INTFLOAT *out, const INTFLOAT *tab)
{
INTFLOAT tmp0, tmp1;
INTFLOAT val0 , val1 , val2 , val3 , val4 , val5 , val6 , val7 ,
val8 , val9 , val10, val11, val12, val13, val14, val15,
val16, val17, val18, val19, val20, val21, val22, val23,
val24, val25, val26, val27, val28, val29, val30, val31;
BF0( 0, 31, COS0_0 , 1);
BF0(15, 16, COS0_15, 5);
BF( 0, 15, COS1_0 , 1);
BF(16, 31,-COS1_0 , 1);
BF0( 7, 24, COS0_7 , 1);
BF0( 8, 23, COS0_8 , 1);
BF( 7, 8, COS1_7 , 4);
BF(23, 24,-COS1_7 , 4);
BF( 0, 7, COS2_0 , 1);
BF( 8, 15,-COS2_0 , 1);
BF(16, 23, COS2_0 , 1);
BF(24, 31,-COS2_0 , 1);
BF0( 3, 28, COS0_3 , 1);
BF0(12, 19, COS0_12, 2);
BF( 3, 12, COS1_3 , 1);
BF(19, 28,-COS1_3 , 1);
BF0( 4, 27, COS0_4 , 1);
BF0(11, 20, COS0_11, 2);
BF( 4, 11, COS1_4 , 1);
BF(20, 27,-COS1_4 , 1);
BF( 3, 4, COS2_3 , 3);
BF(11, 12,-COS2_3 , 3);
BF(19, 20, COS2_3 , 3);
BF(27, 28,-COS2_3 , 3);
BF( 0, 3, COS3_0 , 1);
BF( 4, 7,-COS3_0 , 1);
BF( 8, 11, COS3_0 , 1);
BF(12, 15,-COS3_0 , 1);
BF(16, 19, COS3_0 , 1);
BF(20, 23,-COS3_0 , 1);
BF(24, 27, COS3_0 , 1);
BF(28, 31,-COS3_0 , 1);
BF0( 1, 30, COS0_1 , 1);
BF0(14, 17, COS0_14, 3);
BF( 1, 14, COS1_1 , 1);
BF(17, 30,-COS1_1 , 1);
BF0( 6, 25, COS0_6 , 1);
BF0( 9, 22, COS0_9 , 1);
BF( 6, 9, COS1_6 , 2);
BF(22, 25,-COS1_6 , 2);
BF( 1, 6, COS2_1 , 1);
BF( 9, 14,-COS2_1 , 1);
BF(17, 22, COS2_1 , 1);
BF(25, 30,-COS2_1 , 1);
BF0( 2, 29, COS0_2 , 1);
BF0(13, 18, COS0_13, 3);
BF( 2, 13, COS1_2 , 1);
BF(18, 29,-COS1_2 , 1);
BF0( 5, 26, COS0_5 , 1);
BF0(10, 21, COS0_10, 1);
BF( 5, 10, COS1_5 , 2);
BF(21, 26,-COS1_5 , 2);
BF( 2, 5, COS2_2 , 1);
BF(10, 13,-COS2_2 , 1);
BF(18, 21, COS2_2 , 1);
BF(26, 29,-COS2_2 , 1);
BF( 1, 2, COS3_1 , 2);
BF( 5, 6,-COS3_1 , 2);
BF( 9, 10, COS3_1 , 2);
BF(13, 14,-COS3_1 , 2);
BF(17, 18, COS3_1 , 2);
BF(21, 22,-COS3_1 , 2);
BF(25, 26, COS3_1 , 2);
BF(29, 30,-COS3_1 , 2);
BF1( 0, 1, 2, 3);
BF2( 4, 5, 6, 7);
BF1( 8, 9, 10, 11);
BF2(12, 13, 14, 15);
BF1(16, 17, 18, 19);
BF2(20, 21, 22, 23);
BF1(24, 25, 26, 27);
BF2(28, 29, 30, 31);
ADD( 8, 12);
ADD(12, 10);
ADD(10, 14);
ADD(14, 9);
ADD( 9, 13);
ADD(13, 11);
ADD(11, 15);
out[ 0] = val0;
out[16] = val1;
out[ 8] = val2;
out[24] = val3;
out[ 4] = val4;
out[20] = val5;
out[12] = val6;
out[28] = val7;
out[ 2] = val8;
out[18] = val9;
out[10] = val10;
out[26] = val11;
out[ 6] = val12;
out[22] = val13;
out[14] = val14;
out[30] = val15;
ADD(24, 28);
ADD(28, 26);
ADD(26, 30);
ADD(30, 25);
ADD(25, 29);
ADD(29, 27);
ADD(27, 31);
out[ 1] = val16 + val24;
out[17] = val17 + val25;
out[ 9] = val18 + val26;
out[25] = val19 + val27;
out[ 5] = val20 + val28;
out[21] = val21 + val29;
out[13] = val22 + val30;
out[29] = val23 + val31;
out[ 3] = val24 + val20;
out[19] = val25 + val21;
out[11] = val26 + val22;
out[27] = val27 + val23;
out[ 7] = val28 + val18;
out[23] = val29 + val19;
out[15] = val30 + val17;
out[31] = val31;
} | ['static void mpc_synth(MPCContext *c, int16_t *out)\n{\n int dither_state = 0;\n int i, ch;\n OUT_INT samples[MPA_MAX_CHANNELS * MPA_FRAME_SIZE], *samples_ptr;\n for(ch = 0; ch < 2; ch++){\n samples_ptr = samples + ch;\n for(i = 0; i < SAMPLES_PER_BAND; i++) {\n ff_mpa_synth_filter(c->synth_buf[ch], &(c->synth_buf_offset[ch]),\n ff_mpa_synth_window, &dither_state,\n samples_ptr, 2,\n c->sb_samples[ch][i]);\n samples_ptr += 64;\n }\n }\n for(i = 0; i < MPC_FRAME_SIZE*2; i++)\n *out++=samples[i];\n}', 'void ff_mpa_synth_filter(MPA_INT *synth_buf_ptr, int *synth_buf_offset,\n MPA_INT *window, int *dither_state,\n OUT_INT *samples, int incr,\n INTFLOAT sb_samples[SBLIMIT])\n{\n register MPA_INT *synth_buf;\n int offset;\n#if FRAC_BITS <= 15\n int32_t tmp[32];\n#endif\n offset = *synth_buf_offset;\n synth_buf = synth_buf_ptr + offset;\n#if FRAC_BITS <= 15 && !CONFIG_FLOAT\n dct32(tmp, sb_samples);\n for(j=0;j<32;j++) {\n synth_buf[j] = av_clip_int16(tmp[j]);\n }\n#else\n dct32(synth_buf, sb_samples);\n#endif\n apply_window_mp3_c(synth_buf, window, dither_state, samples, incr);\n offset = (offset - 32) & 511;\n *synth_buf_offset = offset;\n}', 'static void dct32(INTFLOAT *out, const INTFLOAT *tab)\n{\n INTFLOAT tmp0, tmp1;\n INTFLOAT val0 , val1 , val2 , val3 , val4 , val5 , val6 , val7 ,\n val8 , val9 , val10, val11, val12, val13, val14, val15,\n val16, val17, val18, val19, val20, val21, val22, val23,\n val24, val25, val26, val27, val28, val29, val30, val31;\n BF0( 0, 31, COS0_0 , 1);\n BF0(15, 16, COS0_15, 5);\n BF( 0, 15, COS1_0 , 1);\n BF(16, 31,-COS1_0 , 1);\n BF0( 7, 24, COS0_7 , 1);\n BF0( 8, 23, COS0_8 , 1);\n BF( 7, 8, COS1_7 , 4);\n BF(23, 24,-COS1_7 , 4);\n BF( 0, 7, COS2_0 , 1);\n BF( 8, 15,-COS2_0 , 1);\n BF(16, 23, COS2_0 , 1);\n BF(24, 31,-COS2_0 , 1);\n BF0( 3, 28, COS0_3 , 1);\n BF0(12, 19, COS0_12, 2);\n BF( 3, 12, COS1_3 , 1);\n BF(19, 28,-COS1_3 , 1);\n BF0( 4, 27, COS0_4 , 1);\n BF0(11, 20, COS0_11, 2);\n BF( 4, 11, COS1_4 , 1);\n BF(20, 27,-COS1_4 , 1);\n BF( 3, 4, COS2_3 , 3);\n BF(11, 12,-COS2_3 , 3);\n BF(19, 20, COS2_3 , 3);\n BF(27, 28,-COS2_3 , 3);\n BF( 0, 3, COS3_0 , 1);\n BF( 4, 7,-COS3_0 , 1);\n BF( 8, 11, COS3_0 , 1);\n BF(12, 15,-COS3_0 , 1);\n BF(16, 19, COS3_0 , 1);\n BF(20, 23,-COS3_0 , 1);\n BF(24, 27, COS3_0 , 1);\n BF(28, 31,-COS3_0 , 1);\n BF0( 1, 30, COS0_1 , 1);\n BF0(14, 17, COS0_14, 3);\n BF( 1, 14, COS1_1 , 1);\n BF(17, 30,-COS1_1 , 1);\n BF0( 6, 25, COS0_6 , 1);\n BF0( 9, 22, COS0_9 , 1);\n BF( 6, 9, COS1_6 , 2);\n BF(22, 25,-COS1_6 , 2);\n BF( 1, 6, COS2_1 , 1);\n BF( 9, 14,-COS2_1 , 1);\n BF(17, 22, COS2_1 , 1);\n BF(25, 30,-COS2_1 , 1);\n BF0( 2, 29, COS0_2 , 1);\n BF0(13, 18, COS0_13, 3);\n BF( 2, 13, COS1_2 , 1);\n BF(18, 29,-COS1_2 , 1);\n BF0( 5, 26, COS0_5 , 1);\n BF0(10, 21, COS0_10, 1);\n BF( 5, 10, COS1_5 , 2);\n BF(21, 26,-COS1_5 , 2);\n BF( 2, 5, COS2_2 , 1);\n BF(10, 13,-COS2_2 , 1);\n BF(18, 21, COS2_2 , 1);\n BF(26, 29,-COS2_2 , 1);\n BF( 1, 2, COS3_1 , 2);\n BF( 5, 6,-COS3_1 , 2);\n BF( 9, 10, COS3_1 , 2);\n BF(13, 14,-COS3_1 , 2);\n BF(17, 18, COS3_1 , 2);\n BF(21, 22,-COS3_1 , 2);\n BF(25, 26, COS3_1 , 2);\n BF(29, 30,-COS3_1 , 2);\n BF1( 0, 1, 2, 3);\n BF2( 4, 5, 6, 7);\n BF1( 8, 9, 10, 11);\n BF2(12, 13, 14, 15);\n BF1(16, 17, 18, 19);\n BF2(20, 21, 22, 23);\n BF1(24, 25, 26, 27);\n BF2(28, 29, 30, 31);\n ADD( 8, 12);\n ADD(12, 10);\n ADD(10, 14);\n ADD(14, 9);\n ADD( 9, 13);\n ADD(13, 11);\n ADD(11, 15);\n out[ 0] = val0;\n out[16] = val1;\n out[ 8] = val2;\n out[24] = val3;\n out[ 4] = val4;\n out[20] = val5;\n out[12] = val6;\n out[28] = val7;\n out[ 2] = val8;\n out[18] = val9;\n out[10] = val10;\n out[26] = val11;\n out[ 6] = val12;\n out[22] = val13;\n out[14] = val14;\n out[30] = val15;\n ADD(24, 28);\n ADD(28, 26);\n ADD(26, 30);\n ADD(30, 25);\n ADD(25, 29);\n ADD(29, 27);\n ADD(27, 31);\n out[ 1] = val16 + val24;\n out[17] = val17 + val25;\n out[ 9] = val18 + val26;\n out[25] = val19 + val27;\n out[ 5] = val20 + val28;\n out[21] = val21 + val29;\n out[13] = val22 + val30;\n out[29] = val23 + val31;\n out[ 3] = val24 + val20;\n out[19] = val25 + val21;\n out[11] = val26 + val22;\n out[27] = val27 + val23;\n out[ 7] = val28 + val18;\n out[23] = val29 + val19;\n out[15] = val30 + val17;\n out[31] = val31;\n}'] |
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