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 |
|---|---|---|---|---|
26,901 | 0 | https://github.com/openssl/openssl/blob/9c46f4b9cd4912b61cb546c48b678488d7f26ed6/crypto/bn/bn_ctx.c/#L437 | static void BN_POOL_release(BN_POOL *p, unsigned int num)
{
unsigned int offset = (p->used - 1) % BN_CTX_POOL_SIZE;
p->used -= num;
while (num--) {
bn_check_top(p->current->vals + offset);
if (!offset) {
offset = BN_CTX_POOL_SIZE - 1;
p->current = p->current->prev;
} else
offset--;
}
} | ['int BN_div_recp(BIGNUM *dv, BIGNUM *rem, const BIGNUM *m,\n BN_RECP_CTX *recp, BN_CTX *ctx)\n{\n int i, j, ret = 0;\n BIGNUM *a, *b, *d, *r;\n BN_CTX_start(ctx);\n a = BN_CTX_get(ctx);\n b = BN_CTX_get(ctx);\n if (dv != NULL)\n d = dv;\n else\n d = BN_CTX_get(ctx);\n if (rem != NULL)\n r = rem;\n else\n r = BN_CTX_get(ctx);\n if (a == NULL || b == NULL || d == NULL || r == NULL)\n goto err;\n if (BN_ucmp(m, &(recp->N)) < 0) {\n BN_zero(d);\n if (!BN_copy(r, m))\n return 0;\n BN_CTX_end(ctx);\n return (1);\n }\n i = BN_num_bits(m);\n j = recp->num_bits << 1;\n if (j > i)\n i = j;\n if (i != recp->shift)\n recp->shift = BN_reciprocal(&(recp->Nr), &(recp->N), i, ctx);\n if (recp->shift == -1)\n goto err;\n if (!BN_rshift(a, m, recp->num_bits))\n goto err;\n if (!BN_mul(b, a, &(recp->Nr), ctx))\n goto err;\n if (!BN_rshift(d, b, i - recp->num_bits))\n goto err;\n d->neg = 0;\n if (!BN_mul(b, &(recp->N), d, ctx))\n goto err;\n if (!BN_usub(r, m, b))\n goto err;\n r->neg = 0;\n#if 1\n j = 0;\n while (BN_ucmp(r, &(recp->N)) >= 0) {\n if (j++ > 2) {\n BNerr(BN_F_BN_DIV_RECP, BN_R_BAD_RECIPROCAL);\n goto err;\n }\n if (!BN_usub(r, r, &(recp->N)))\n goto err;\n if (!BN_add_word(d, 1))\n goto err;\n }\n#endif\n r->neg = BN_is_zero(r) ? 0 : m->neg;\n d->neg = m->neg ^ recp->N.neg;\n ret = 1;\n err:\n BN_CTX_end(ctx);\n bn_check_top(dv);\n bn_check_top(rem);\n return (ret);\n}', 'int BN_reciprocal(BIGNUM *r, const BIGNUM *m, int len, BN_CTX *ctx)\n{\n int ret = -1;\n BIGNUM *t;\n BN_CTX_start(ctx);\n if ((t = BN_CTX_get(ctx)) == NULL)\n goto err;\n if (!BN_set_bit(t, len))\n goto err;\n if (!BN_div(r, NULL, t, m, ctx))\n goto err;\n ret = len;\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}', '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}', 'static void BN_POOL_release(BN_POOL *p, unsigned int num)\n{\n unsigned int offset = (p->used - 1) % BN_CTX_POOL_SIZE;\n p->used -= num;\n while (num--) {\n bn_check_top(p->current->vals + offset);\n if (!offset) {\n offset = BN_CTX_POOL_SIZE - 1;\n p->current = p->current->prev;\n } else\n offset--;\n }\n}'] |
26,902 | 0 | https://github.com/openssl/openssl/blob/8839324450b569a6253e0dd237ee3e417ef17771/crypto/x509/x509_trs.c/#L78 | int X509_check_trust(X509 *x, int id, int flags)
{
X509_TRUST *pt;
int idx;
if (id == X509_TRUST_DEFAULT)
return obj_trust(NID_anyExtendedKeyUsage, x,
flags | X509_TRUST_DO_SS_COMPAT);
idx = X509_TRUST_get_by_id(id);
if (idx == -1)
return default_trust(id, x, flags);
pt = X509_TRUST_get0(idx);
return pt->check_trust(pt, x, flags);
} | ['int X509_check_trust(X509 *x, int id, int flags)\n{\n X509_TRUST *pt;\n int idx;\n if (id == X509_TRUST_DEFAULT)\n return obj_trust(NID_anyExtendedKeyUsage, x,\n flags | X509_TRUST_DO_SS_COMPAT);\n idx = X509_TRUST_get_by_id(id);\n if (idx == -1)\n return default_trust(id, x, flags);\n pt = X509_TRUST_get0(idx);\n return pt->check_trust(pt, x, flags);\n}', 'X509_TRUST *X509_TRUST_get0(int idx)\n{\n if (idx < 0)\n return NULL;\n if (idx < (int)X509_TRUST_COUNT)\n return trstandard + idx;\n return sk_X509_TRUST_value(trtable, idx - X509_TRUST_COUNT);\n}'] |
26,903 | 0 | https://github.com/libav/libav/blob/185655c601cd893866fee42acab19a481f44941e/libavcodec/utils.c/#L392 | void avcodec_default_release_buffer(AVCodecContext *s, AVFrame *pic){
int i;
InternalBuffer *buf, *last;
AVCodecInternal *avci = s->internal;
assert(pic->type==FF_BUFFER_TYPE_INTERNAL);
assert(avci->buffer_count);
if (avci->buffer) {
buf = NULL;
for (i = 0; i < avci->buffer_count; i++) {
buf = &avci->buffer[i];
if (buf->data[0] == pic->data[0])
break;
}
assert(i < avci->buffer_count);
avci->buffer_count--;
last = &avci->buffer[avci->buffer_count];
FFSWAP(InternalBuffer, *buf, *last);
}
for(i=0; i<4; i++){
pic->data[i]=NULL;
}
if(s->debug&FF_DEBUG_BUFFERS)
av_log(s, AV_LOG_DEBUG, "default_release_buffer called on pic %p, %d "
"buffers used\n", pic, avci->buffer_count);
} | ['void avcodec_default_release_buffer(AVCodecContext *s, AVFrame *pic){\n int i;\n InternalBuffer *buf, *last;\n AVCodecInternal *avci = s->internal;\n assert(pic->type==FF_BUFFER_TYPE_INTERNAL);\n assert(avci->buffer_count);\n if (avci->buffer) {\n buf = NULL;\n for (i = 0; i < avci->buffer_count; i++) {\n buf = &avci->buffer[i];\n if (buf->data[0] == pic->data[0])\n break;\n }\n assert(i < avci->buffer_count);\n avci->buffer_count--;\n last = &avci->buffer[avci->buffer_count];\n FFSWAP(InternalBuffer, *buf, *last);\n }\n for(i=0; i<4; i++){\n pic->data[i]=NULL;\n }\n if(s->debug&FF_DEBUG_BUFFERS)\n av_log(s, AV_LOG_DEBUG, "default_release_buffer called on pic %p, %d "\n "buffers used\\n", pic, avci->buffer_count);\n}'] |
26,904 | 0 | https://github.com/openssl/openssl/blob/3ba25ee86a3758cc659c954b59718d8397030768/crypto/lhash/lhash.c/#L240 | void *lh_delete(LHASH *lh, const void *data)
{
unsigned long hash;
LHASH_NODE *nn,**rn;
const 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((void *)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 int 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#if defined(MSDOS) && !defined(WIN32)\n\t\t1024*30,\n#else\n\t\t1024*100,\n#endif\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_buf->data;\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\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 need_cert =\n ((s->s3->tmp.new_cipher->algorithms & (SSL_MKEY_MASK|SSL_AUTH_MASK))\n == (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 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,SSL_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,SSL_R_UNKNOWN_CERTIFICATE_TYPE);\n\t\tgoto f_err;\n\t\t}\n if (need_cert)\n {\n sc->peer_cert_type=i;\n CRYPTO_add(&x->references,1,CRYPTO_LOCK_X509);\n if (sc->peer_pkeys[i].x509 != NULL)\n X509_free(sc->peer_pkeys[i].x509);\n sc->peer_pkeys[i].x509=x;\n sc->peer_key= &(sc->peer_pkeys[i]);\n if (s->session->peer != NULL)\n X509_free(s->session->peer);\n CRYPTO_add(&x->references,1,CRYPTO_LOCK_X509);\n s->session->peer=x;\n }\n else\n {\n sc->peer_cert_type=i;\n sc->peer_key= NULL;\n if (s->session->peer != NULL)\n X509_free(s->session->peer);\n s->session->peer=NULL;\n }\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}', 'long ssl3_get_message(SSL *s, int st1, int stn, int mt, long max, int *ok)\n\t{\n\tunsigned char *p;\n\tunsigned long l;\n\tlong n;\n\tint i,al;\n\tif (s->s3->tmp.reuse_message)\n\t\t{\n\t\ts->s3->tmp.reuse_message=0;\n\t\tif ((mt >= 0) && (s->s3->tmp.message_type != mt))\n\t\t\t{\n\t\t\tal=SSL_AD_UNEXPECTED_MESSAGE;\n\t\t\tSSLerr(SSL_F_SSL3_GET_MESSAGE,SSL_R_UNEXPECTED_MESSAGE);\n\t\t\tgoto f_err;\n\t\t\t}\n\t\t*ok=1;\n\t\treturn((int)s->s3->tmp.message_size);\n\t\t}\n\tp=(unsigned char *)s->init_buf->data;\n\tif (s->state == st1)\n\t\t{\n\t\tint skip_message;\n\t\tdo\n\t\t\t{\n\t\t\twhile (s->init_num < 4)\n\t\t\t\t{\n\t\t\t\ti=ssl3_read_bytes(s,SSL3_RT_HANDSHAKE,&p[s->init_num],\n\t\t\t\t\t4 - s->init_num, 0);\n\t\t\t\tif (i <= 0)\n\t\t\t\t\t{\n\t\t\t\t\ts->rwstate=SSL_READING;\n\t\t\t\t\t*ok = 0;\n\t\t\t\t\treturn i;\n\t\t\t\t\t}\n\t\t\t\ts->init_num+=i;\n\t\t\t\t}\n\t\t\tskip_message = 0;\n\t\t\tif (!s->server)\n\t\t\t\tif (p[0] == SSL3_MT_HELLO_REQUEST)\n\t\t\t\t\tif (p[1] == 0 && p[2] == 0 &&p[3] == 0)\n\t\t\t\t\t\tskip_message = 1;\n\t\t\t}\n\t\twhile (skip_message);\n\t\tif ((mt >= 0) && (*p != mt))\n\t\t\t{\n\t\t\tal=SSL_AD_UNEXPECTED_MESSAGE;\n\t\t\tSSLerr(SSL_F_SSL3_GET_MESSAGE,SSL_R_UNEXPECTED_MESSAGE);\n\t\t\tgoto f_err;\n\t\t\t}\n\t\tif ((mt < 0) && (*p == SSL3_MT_CLIENT_HELLO) &&\n\t\t\t\t\t(st1 == SSL3_ST_SR_CERT_A) &&\n\t\t\t\t\t(stn == SSL3_ST_SR_CERT_B))\n\t\t\t{\n\t\t\tssl3_init_finished_mac(s);\n\t\t\t}\n\t\tssl3_finish_mac(s, (unsigned char *)s->init_buf->data, 4);\n\t\ts->s3->tmp.message_type= *(p++);\n\t\tn2l3(p,l);\n\t\tif (l > (unsigned long)max)\n\t\t\t{\n\t\t\tal=SSL_AD_ILLEGAL_PARAMETER;\n\t\t\tSSLerr(SSL_F_SSL3_GET_MESSAGE,SSL_R_EXCESSIVE_MESSAGE_SIZE);\n\t\t\tgoto f_err;\n\t\t\t}\n\t\tif (l && !BUF_MEM_grow(s->init_buf,(int)l))\n\t\t\t{\n\t\t\tSSLerr(SSL_F_SSL3_GET_MESSAGE,ERR_R_BUF_LIB);\n\t\t\tgoto err;\n\t\t\t}\n\t\ts->s3->tmp.message_size=l;\n\t\ts->state=stn;\n\t\ts->init_num=0;\n\t\t}\n\tp=(unsigned char *)s->init_buf->data;\n\tn=s->s3->tmp.message_size;\n\twhile (n > 0)\n\t\t{\n\t\ti=ssl3_read_bytes(s,SSL3_RT_HANDSHAKE,&p[s->init_num],n,0);\n\t\tif (i <= 0)\n\t\t\t{\n\t\t\ts->rwstate=SSL_READING;\n\t\t\t*ok = 0;\n\t\t\treturn i;\n\t\t\t}\n\t\ts->init_num += i;\n\t\tn -= i;\n\t\t}\n\tssl3_finish_mac(s, (unsigned char *)s->init_buf->data, s->init_num);\n\t*ok=1;\n\treturn s->init_num;\nf_err:\n\tssl3_send_alert(s,SSL3_AL_FATAL,al);\nerr:\n\t*ok=0;\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,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}', '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}'] |
26,905 | 0 | https://github.com/apache/httpd/blob/8b2ec33ac5d314be345814db08e194ffeda6beb0/server/util.c/#L1120 | AP_DECLARE(apr_status_t) ap_varbuf_cfg_getline(struct ap_varbuf *vb,
ap_configfile_t *cfp,
apr_size_t max_len)
{
apr_status_t rc;
vb->strlen = 0;
*vb->buf = '\0';
for (;;) {
apr_size_t new_len;
rc = ap_cfg_getline_core(vb->buf + vb->strlen, vb->avail - vb->strlen, cfp);
if (rc == APR_ENOSPC || rc == APR_SUCCESS)
vb->strlen += strlen(vb->buf + vb->strlen);
if (rc != APR_ENOSPC)
break;
if (vb->avail >= max_len)
return APR_ENOSPC;
new_len = vb->avail * 2;
if (new_len > max_len)
new_len = max_len;
ap_varbuf_grow(vb, new_len);
--cfp->line_number;
}
if (vb->strlen > max_len)
return APR_ENOSPC;
if (rc == APR_SUCCESS)
vb->strlen = cfg_trim_line(vb->buf);
return rc;
} | ["AP_DECLARE(apr_status_t) ap_varbuf_cfg_getline(struct ap_varbuf *vb,\n ap_configfile_t *cfp,\n apr_size_t max_len)\n{\n apr_status_t rc;\n vb->strlen = 0;\n *vb->buf = '\\0';\n for (;;) {\n apr_size_t new_len;\n rc = ap_cfg_getline_core(vb->buf + vb->strlen, vb->avail - vb->strlen, cfp);\n if (rc == APR_ENOSPC || rc == APR_SUCCESS)\n vb->strlen += strlen(vb->buf + vb->strlen);\n if (rc != APR_ENOSPC)\n break;\n if (vb->avail >= max_len)\n return APR_ENOSPC;\n new_len = vb->avail * 2;\n if (new_len > max_len)\n new_len = max_len;\n ap_varbuf_grow(vb, new_len);\n --cfp->line_number;\n }\n if (vb->strlen > max_len)\n return APR_ENOSPC;\n if (rc == APR_SUCCESS)\n vb->strlen = cfg_trim_line(vb->buf);\n return rc;\n}"] |
26,906 | 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 inline void gainc_loc_mode1(BitstreamContext *bc, Atrac3pChanUnitCtx *ctx,\n AtracGainInfo *dst)\n{\n int i;\n VLC *tab;\n if (dst->num_points > 0) {\n dst->loc_code[0] = bitstream_read(bc, 5);\n for (i = 1; i < dst->num_points; i++) {\n tab = (dst->lev_code[i] <= dst->lev_code[i - 1])\n ? &gain_vlc_tabs[7]\n : &gain_vlc_tabs[9];\n dst->loc_code[i] = dst->loc_code[i - 1] +\n bitstream_read_vlc(bc, tab->table, tab->bits, 1);\n }\n }\n}', 'static inline uint32_t bitstream_read(BitstreamContext *bc, unsigned n)\n{\n if (!n)\n return 0;\n if (n > bc->bits_left) {\n refill_32(bc);\n if (bc->bits_left < 32)\n bc->bits_left = n;\n }\n return get_val(bc, n);\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}'] |
26,907 | 0 | https://github.com/openssl/openssl/blob/2c8c4ce2e0e4c3ccc7f43993e0fed1542e20e11f/crypto/lhash/lhash.c/#L282 | void lh_doall_arg(LHASH *lh, void (*func)(), void *arg)
{
int i;
LHASH_NODE *a,*n;
for (i=lh->num_nodes-1; i>=0; i--)
{
a=lh->b[i];
while (a != NULL)
{
n=a->next;
func(a->data,arg);
a=n;
}
}
} | ['int MAIN(int argc, char **argv)\n\t{\n\tint ret=1;\n\tX509_REQ *req=NULL;\n\tX509 *x=NULL,*xca=NULL;\n\tASN1_OBJECT *objtmp;\n\tEVP_PKEY *Upkey=NULL,*CApkey=NULL;\n\tint i,num,badops=0;\n\tBIO *out=NULL;\n\tBIO *STDout=NULL;\n\tSTACK_OF(ASN1_OBJECT) *trust = NULL, *reject = NULL;\n\tint informat,outformat,keyformat,CAformat,CAkeyformat;\n\tchar *infile=NULL,*outfile=NULL,*keyfile=NULL,*CAfile=NULL;\n\tchar *CAkeyfile=NULL,*CAserial=NULL;\n\tchar *alias=NULL;\n\tint text=0,serial=0,hash=0,subject=0,issuer=0,startdate=0,enddate=0;\n\tint noout=0,sign_flag=0,CA_flag=0,CA_createserial=0;\n\tint trustout=0,clrtrust=0,clrreject=0,aliasout=0,clrext=0;\n\tint C=0;\n\tint x509req=0,days=DEF_DAYS,modulus=0,pubkey=0;\n\tint pprint = 0;\n\tchar **pp;\n\tX509_STORE *ctx=NULL;\n\tX509_REQ *rq=NULL;\n\tint fingerprint=0;\n\tchar buf[256];\n\tconst EVP_MD *md_alg,*digest=EVP_md5();\n\tLHASH *extconf = NULL;\n\tchar *extsect = NULL, *extfile = NULL, *passin = NULL, *passargin = NULL;\n\tint need_rand = 0;\n\treqfile=0;\n\tapps_startup();\n\tif (bio_err == NULL)\n\t\tbio_err=BIO_new_fp(stderr,BIO_NOCLOSE);\n\tSTDout=BIO_new_fp(stdout,BIO_NOCLOSE);\n\tinformat=FORMAT_PEM;\n\toutformat=FORMAT_PEM;\n\tkeyformat=FORMAT_PEM;\n\tCAformat=FORMAT_PEM;\n\tCAkeyformat=FORMAT_PEM;\n\tctx=X509_STORE_new();\n\tif (ctx == NULL) goto end;\n\tX509_STORE_set_verify_cb_func(ctx,callb);\n\targc--;\n\targv++;\n\tnum=0;\n\twhile (argc >= 1)\n\t\t{\n\t\tif \t(strcmp(*argv,"-inform") == 0)\n\t\t\t{\n\t\t\tif (--argc < 1) goto bad;\n\t\t\tinformat=str2fmt(*(++argv));\n\t\t\t}\n\t\telse if (strcmp(*argv,"-outform") == 0)\n\t\t\t{\n\t\t\tif (--argc < 1) goto bad;\n\t\t\toutformat=str2fmt(*(++argv));\n\t\t\t}\n\t\telse if (strcmp(*argv,"-keyform") == 0)\n\t\t\t{\n\t\t\tif (--argc < 1) goto bad;\n\t\t\tkeyformat=str2fmt(*(++argv));\n\t\t\t}\n\t\telse if (strcmp(*argv,"-req") == 0)\n\t\t\t{\n\t\t\treqfile=1;\n\t\t\tneed_rand = 1;\n\t\t\t}\n\t\telse if (strcmp(*argv,"-CAform") == 0)\n\t\t\t{\n\t\t\tif (--argc < 1) goto bad;\n\t\t\tCAformat=str2fmt(*(++argv));\n\t\t\t}\n\t\telse if (strcmp(*argv,"-CAkeyform") == 0)\n\t\t\t{\n\t\t\tif (--argc < 1) goto bad;\n\t\t\tCAformat=str2fmt(*(++argv));\n\t\t\t}\n\t\telse if (strcmp(*argv,"-days") == 0)\n\t\t\t{\n\t\t\tif (--argc < 1) goto bad;\n\t\t\tdays=atoi(*(++argv));\n\t\t\tif (days == 0)\n\t\t\t\t{\n\t\t\t\tBIO_printf(STDout,"bad number of days\\n");\n\t\t\t\tgoto bad;\n\t\t\t\t}\n\t\t\t}\n\t\telse if (strcmp(*argv,"-passin") == 0)\n\t\t\t{\n\t\t\tif (--argc < 1) goto bad;\n\t\t\tpassargin= *(++argv);\n\t\t\t}\n\t\telse if (strcmp(*argv,"-extfile") == 0)\n\t\t\t{\n\t\t\tif (--argc < 1) goto bad;\n\t\t\textfile= *(++argv);\n\t\t\t}\n\t\telse if (strcmp(*argv,"-extensions") == 0)\n\t\t\t{\n\t\t\tif (--argc < 1) goto bad;\n\t\t\textsect= *(++argv);\n\t\t\t}\n\t\telse if (strcmp(*argv,"-in") == 0)\n\t\t\t{\n\t\t\tif (--argc < 1) goto bad;\n\t\t\tinfile= *(++argv);\n\t\t\t}\n\t\telse if (strcmp(*argv,"-out") == 0)\n\t\t\t{\n\t\t\tif (--argc < 1) goto bad;\n\t\t\toutfile= *(++argv);\n\t\t\t}\n\t\telse if (strcmp(*argv,"-signkey") == 0)\n\t\t\t{\n\t\t\tif (--argc < 1) goto bad;\n\t\t\tkeyfile= *(++argv);\n\t\t\tsign_flag= ++num;\n\t\t\tneed_rand = 1;\n\t\t\t}\n\t\telse if (strcmp(*argv,"-CA") == 0)\n\t\t\t{\n\t\t\tif (--argc < 1) goto bad;\n\t\t\tCAfile= *(++argv);\n\t\t\tCA_flag= ++num;\n\t\t\tneed_rand = 1;\n\t\t\t}\n\t\telse if (strcmp(*argv,"-CAkey") == 0)\n\t\t\t{\n\t\t\tif (--argc < 1) goto bad;\n\t\t\tCAkeyfile= *(++argv);\n\t\t\t}\n\t\telse if (strcmp(*argv,"-CAserial") == 0)\n\t\t\t{\n\t\t\tif (--argc < 1) goto bad;\n\t\t\tCAserial= *(++argv);\n\t\t\t}\n\t\telse if (strcmp(*argv,"-addtrust") == 0)\n\t\t\t{\n\t\t\tif (--argc < 1) goto bad;\n\t\t\tif(!(objtmp = OBJ_txt2obj(*(++argv), 0))) {\n\t\t\t\tBIO_printf(bio_err,\n\t\t\t\t\t"Invalid trust object value %s\\n", *argv);\n\t\t\t\tgoto bad;\n\t\t\t}\n\t\t\tif(!trust) trust = sk_ASN1_OBJECT_new_null();\n\t\t\tsk_ASN1_OBJECT_push(trust, objtmp);\n\t\t\ttrustout = 1;\n\t\t\t}\n\t\telse if (strcmp(*argv,"-addreject") == 0)\n\t\t\t{\n\t\t\tif (--argc < 1) goto bad;\n\t\t\tif(!(objtmp = OBJ_txt2obj(*(++argv), 0))) {\n\t\t\t\tBIO_printf(bio_err,\n\t\t\t\t\t"Invalid reject object value %s\\n", *argv);\n\t\t\t\tgoto bad;\n\t\t\t}\n\t\t\tif(!reject) reject = sk_ASN1_OBJECT_new_null();\n\t\t\tsk_ASN1_OBJECT_push(reject, objtmp);\n\t\t\ttrustout = 1;\n\t\t\t}\n\t\telse if (strcmp(*argv,"-setalias") == 0)\n\t\t\t{\n\t\t\tif (--argc < 1) goto bad;\n\t\t\talias= *(++argv);\n\t\t\ttrustout = 1;\n\t\t\t}\n\t\telse if (strcmp(*argv,"-setalias") == 0)\n\t\t\t{\n\t\t\tif (--argc < 1) goto bad;\n\t\t\talias= *(++argv);\n\t\t\ttrustout = 1;\n\t\t\t}\n\t\telse if (strcmp(*argv,"-C") == 0)\n\t\t\tC= ++num;\n\t\telse if (strcmp(*argv,"-serial") == 0)\n\t\t\tserial= ++num;\n\t\telse if (strcmp(*argv,"-modulus") == 0)\n\t\t\tmodulus= ++num;\n\t\telse if (strcmp(*argv,"-pubkey") == 0)\n\t\t\tpubkey= ++num;\n\t\telse if (strcmp(*argv,"-x509toreq") == 0)\n\t\t\tx509req= ++num;\n\t\telse if (strcmp(*argv,"-text") == 0)\n\t\t\ttext= ++num;\n\t\telse if (strcmp(*argv,"-hash") == 0)\n\t\t\thash= ++num;\n\t\telse if (strcmp(*argv,"-subject") == 0)\n\t\t\tsubject= ++num;\n\t\telse if (strcmp(*argv,"-issuer") == 0)\n\t\t\tissuer= ++num;\n\t\telse if (strcmp(*argv,"-fingerprint") == 0)\n\t\t\tfingerprint= ++num;\n\t\telse if (strcmp(*argv,"-dates") == 0)\n\t\t\t{\n\t\t\tstartdate= ++num;\n\t\t\tenddate= ++num;\n\t\t\t}\n\t\telse if (strcmp(*argv,"-purpose") == 0)\n\t\t\tpprint= ++num;\n\t\telse if (strcmp(*argv,"-startdate") == 0)\n\t\t\tstartdate= ++num;\n\t\telse if (strcmp(*argv,"-enddate") == 0)\n\t\t\tenddate= ++num;\n\t\telse if (strcmp(*argv,"-noout") == 0)\n\t\t\tnoout= ++num;\n\t\telse if (strcmp(*argv,"-trustout") == 0)\n\t\t\ttrustout= 1;\n\t\telse if (strcmp(*argv,"-clrtrust") == 0)\n\t\t\tclrtrust= ++num;\n\t\telse if (strcmp(*argv,"-clrreject") == 0)\n\t\t\tclrreject= ++num;\n\t\telse if (strcmp(*argv,"-alias") == 0)\n\t\t\taliasout= ++num;\n\t\telse if (strcmp(*argv,"-CAcreateserial") == 0)\n\t\t\tCA_createserial= ++num;\n\t\telse if (strcmp(*argv,"-clrext") == 0)\n\t\t\tclrext = 1;\n#if 1\n\t\telse if (strcmp(*argv,"-crlext") == 0)\n\t\t\t{\n\t\t\tBIO_printf(bio_err,"use -clrext instead of -crlext\\n");\n\t\t\tclrext = 1;\n\t\t\t}\n#endif\n\t\telse if ((md_alg=EVP_get_digestbyname(*argv + 1)))\n\t\t\t{\n\t\t\tdigest=md_alg;\n\t\t\t}\n\t\telse\n\t\t\t{\n\t\t\tBIO_printf(bio_err,"unknown option %s\\n",*argv);\n\t\t\tbadops=1;\n\t\t\tbreak;\n\t\t\t}\n\t\targc--;\n\t\targv++;\n\t\t}\n\tif (badops)\n\t\t{\nbad:\n\t\tfor (pp=x509_usage; (*pp != NULL); pp++)\n\t\t\tBIO_printf(bio_err,*pp);\n\t\tgoto end;\n\t\t}\n\tif (need_rand)\n\t\tapp_RAND_load_file(NULL, bio_err, 0);\n\tERR_load_crypto_strings();\n\tif(!app_passwd(bio_err, passargin, NULL, &passin, NULL)) {\n\t\tBIO_printf(bio_err, "Error getting password\\n");\n\t\tgoto end;\n\t}\n\tif (!X509_STORE_set_default_paths(ctx))\n\t\t{\n\t\tERR_print_errors(bio_err);\n\t\tgoto end;\n\t\t}\n\tif ((CAkeyfile == NULL) && (CA_flag) && (CAformat == FORMAT_PEM))\n\t\t{ CAkeyfile=CAfile; }\n\telse if ((CA_flag) && (CAkeyfile == NULL))\n\t\t{\n\t\tBIO_printf(bio_err,"need to specify a CAkey if using the CA command\\n");\n\t\tgoto end;\n\t\t}\n\tif (extfile) {\n\t\tlong errorline;\n\t\tX509V3_CTX ctx2;\n\t\tif (!(extconf=CONF_load(NULL,extfile,&errorline))) {\n\t\t\tif (errorline <= 0)\n\t\t\t\tBIO_printf(bio_err,\n\t\t\t\t\t"error loading the config file \'%s\'\\n",\n\t\t\t\t\t\t\t\textfile);\n \telse\n \tBIO_printf(bio_err,\n\t\t\t\t "error on line %ld of config file \'%s\'\\n"\n\t\t\t\t\t\t\t,errorline,extfile);\n\t\t\tgoto end;\n\t\t}\n\t\tif(!extsect && !(extsect = CONF_get_string(extconf, "default",\n\t\t\t\t\t "extensions"))) extsect = "default";\n\t\tX509V3_set_ctx_test(&ctx2);\n\t\tX509V3_set_conf_lhash(&ctx2, extconf);\n\t\tif(!X509V3_EXT_add_conf(extconf, &ctx2, extsect, NULL)) {\n\t\t\tBIO_printf(bio_err,\n\t\t\t\t"Error Loading extension section %s\\n",\n\t\t\t\t\t\t\t\t extsect);\n\t\t\tERR_print_errors(bio_err);\n\t\t\tgoto end;\n }\n\t}\n\tif (reqfile)\n\t\t{\n\t\tEVP_PKEY *pkey;\n\t\tX509_CINF *ci;\n\t\tBIO *in;\n\t\tif (!sign_flag && !CA_flag)\n\t\t\t{\n\t\t\tBIO_printf(bio_err,"We need a private key to sign with\\n");\n\t\t\tgoto end;\n\t\t\t}\n\t\tin=BIO_new(BIO_s_file());\n\t\tif (in == NULL)\n\t\t\t{\n\t\t\tERR_print_errors(bio_err);\n\t\t\tgoto end;\n\t\t\t}\n\t\tif (infile == NULL)\n\t\t\tBIO_set_fp(in,stdin,BIO_NOCLOSE|BIO_FP_TEXT);\n\t\telse\n\t\t\t{\n\t\t\tif (BIO_read_filename(in,infile) <= 0)\n\t\t\t\t{\n\t\t\t\tperror(infile);\n\t\t\t\tgoto end;\n\t\t\t\t}\n\t\t\t}\n\t\treq=PEM_read_bio_X509_REQ(in,NULL,NULL,NULL);\n\t\tBIO_free(in);\n\t\tif (req == NULL) { perror(infile); goto end; }\n\t\tif (\t(req->req_info == NULL) ||\n\t\t\t(req->req_info->pubkey == NULL) ||\n\t\t\t(req->req_info->pubkey->public_key == NULL) ||\n\t\t\t(req->req_info->pubkey->public_key->data == NULL))\n\t\t\t{\n\t\t\tBIO_printf(bio_err,"The certificate request appears to corrupted\\n");\n\t\t\tBIO_printf(bio_err,"It does not contain a public key\\n");\n\t\t\tgoto end;\n\t\t\t}\n\t\tif ((pkey=X509_REQ_get_pubkey(req)) == NULL)\n\t {\n\t BIO_printf(bio_err,"error unpacking public key\\n");\n\t goto end;\n\t }\n\t\ti=X509_REQ_verify(req,pkey);\n\t\tEVP_PKEY_free(pkey);\n\t\tif (i < 0)\n\t\t\t{\n\t\t\tBIO_printf(bio_err,"Signature verification error\\n");\n\t\t\tERR_print_errors(bio_err);\n\t\t\tgoto end;\n\t\t\t}\n\t if (i == 0)\n\t\t\t{\n\t\t\tBIO_printf(bio_err,"Signature did not match the certificate request\\n");\n\t\t\tgoto end;\n\t\t\t}\n\t\telse\n\t\t\tBIO_printf(bio_err,"Signature ok\\n");\n\t\tX509_NAME_oneline(req->req_info->subject,buf,256);\n\t\tBIO_printf(bio_err,"subject=%s\\n",buf);\n\t\tif ((x=X509_new()) == NULL) goto end;\n\t\tci=x->cert_info;\n\t\tif (!ASN1_INTEGER_set(X509_get_serialNumber(x),0)) goto end;\n\t\tif (!X509_set_issuer_name(x,req->req_info->subject)) goto end;\n\t\tif (!X509_set_subject_name(x,req->req_info->subject)) goto end;\n\t\tX509_gmtime_adj(X509_get_notBefore(x),0);\n\t X509_gmtime_adj(X509_get_notAfter(x),(long)60*60*24*days);\n\t\tpkey = X509_REQ_get_pubkey(req);\n\t\tX509_set_pubkey(x,pkey);\n\t\tEVP_PKEY_free(pkey);\n\t\t}\n\telse\n\t\tx=load_cert(infile,informat);\n\tif (x == NULL) goto end;\n\tif (CA_flag)\n\t\t{\n\t\txca=load_cert(CAfile,CAformat);\n\t\tif (xca == NULL) goto end;\n\t\t}\n\tif (!noout || text)\n\t\t{\n\t\tOBJ_create("2.99999.3",\n\t\t\t"SET.ex3","SET x509v3 extension 3");\n\t\tout=BIO_new(BIO_s_file());\n\t\tif (out == NULL)\n\t\t\t{\n\t\t\tERR_print_errors(bio_err);\n\t\t\tgoto end;\n\t\t\t}\n\t\tif (outfile == NULL)\n\t\t\tBIO_set_fp(out,stdout,BIO_NOCLOSE);\n\t\telse\n\t\t\t{\n\t\t\tif (BIO_write_filename(out,outfile) <= 0)\n\t\t\t\t{\n\t\t\t\tperror(outfile);\n\t\t\t\tgoto end;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\tif(alias) X509_alias_set1(x, (unsigned char *)alias, -1);\n\tif(clrtrust) X509_trust_clear(x);\n\tif(clrreject) X509_reject_clear(x);\n\tif(trust) {\n\t\tfor(i = 0; i < sk_ASN1_OBJECT_num(trust); i++) {\n\t\t\tobjtmp = sk_ASN1_OBJECT_value(trust, i);\n\t\t\tX509_add1_trust_object(x, objtmp);\n\t\t}\n\t}\n\tif(reject) {\n\t\tfor(i = 0; i < sk_ASN1_OBJECT_num(reject); i++) {\n\t\t\tobjtmp = sk_ASN1_OBJECT_value(reject, i);\n\t\t\tX509_add1_reject_object(x, objtmp);\n\t\t}\n\t}\n\tif (num)\n\t\t{\n\t\tfor (i=1; i<=num; i++)\n\t\t\t{\n\t\t\tif (issuer == i)\n\t\t\t\t{\n\t\t\t\tX509_NAME_oneline(X509_get_issuer_name(x),\n\t\t\t\t\tbuf,256);\n\t\t\t\tBIO_printf(STDout,"issuer= %s\\n",buf);\n\t\t\t\t}\n\t\t\telse if (subject == i)\n\t\t\t\t{\n\t\t\t\tX509_NAME_oneline(X509_get_subject_name(x),\n\t\t\t\t\tbuf,256);\n\t\t\t\tBIO_printf(STDout,"subject=%s\\n",buf);\n\t\t\t\t}\n\t\t\telse if (serial == i)\n\t\t\t\t{\n\t\t\t\tBIO_printf(STDout,"serial=");\n\t\t\t\ti2a_ASN1_INTEGER(STDout,x->cert_info->serialNumber);\n\t\t\t\tBIO_printf(STDout,"\\n");\n\t\t\t\t}\n\t\t\telse if (aliasout == i)\n\t\t\t\t{\n\t\t\t\tunsigned char *alstr;\n\t\t\t\talstr = X509_alias_get0(x, NULL);\n\t\t\t\tif(alstr) BIO_printf(STDout,"%s\\n", alstr);\n\t\t\t\telse BIO_puts(STDout,"<No Alias>\\n");\n\t\t\t\t}\n\t\t\telse if (hash == i)\n\t\t\t\t{\n\t\t\t\tBIO_printf(STDout,"%08lx\\n",X509_subject_name_hash(x));\n\t\t\t\t}\n\t\t\telse if (pprint == i)\n\t\t\t\t{\n\t\t\t\tX509_PURPOSE *ptmp;\n\t\t\t\tint j;\n\t\t\t\tBIO_printf(STDout, "Certificate purposes:\\n");\n\t\t\t\tfor(j = 0; j < X509_PURPOSE_get_count(); j++)\n\t\t\t\t\t{\n\t\t\t\t\tptmp = X509_PURPOSE_get0(j);\n\t\t\t\t\tpurpose_print(STDout, x, ptmp);\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\telse\n\t\t\t\tif (modulus == i)\n\t\t\t\t{\n\t\t\t\tEVP_PKEY *pkey;\n\t\t\t\tpkey=X509_get_pubkey(x);\n\t\t\t\tif (pkey == NULL)\n\t\t\t\t\t{\n\t\t\t\t\tBIO_printf(bio_err,"Modulus=unavailable\\n");\n\t\t\t\t\tERR_print_errors(bio_err);\n\t\t\t\t\tgoto end;\n\t\t\t\t\t}\n\t\t\t\tBIO_printf(STDout,"Modulus=");\n#ifndef NO_RSA\n\t\t\t\tif (pkey->type == EVP_PKEY_RSA)\n\t\t\t\t\tBN_print(STDout,pkey->pkey.rsa->n);\n\t\t\t\telse\n#endif\n#ifndef NO_DSA\n\t\t\t\tif (pkey->type == EVP_PKEY_DSA)\n\t\t\t\t\tBN_print(STDout,pkey->pkey.dsa->pub_key);\n\t\t\t\telse\n#endif\n\t\t\t\t\tBIO_printf(STDout,"Wrong Algorithm type");\n\t\t\t\tBIO_printf(STDout,"\\n");\n\t\t\t\tEVP_PKEY_free(pkey);\n\t\t\t\t}\n\t\t\telse\n\t\t\t\tif (pubkey == i)\n\t\t\t\t{\n\t\t\t\tEVP_PKEY *pkey;\n\t\t\t\tpkey=X509_get_pubkey(x);\n\t\t\t\tif (pkey == NULL)\n\t\t\t\t\t{\n\t\t\t\t\tBIO_printf(bio_err,"Error getting public key\\n");\n\t\t\t\t\tERR_print_errors(bio_err);\n\t\t\t\t\tgoto end;\n\t\t\t\t\t}\n\t\t\t\tPEM_write_bio_PUBKEY(STDout, pkey);\n\t\t\t\tEVP_PKEY_free(pkey);\n\t\t\t\t}\n\t\t\telse\n\t\t\t\tif (C == i)\n\t\t\t\t{\n\t\t\t\tunsigned char *d;\n\t\t\t\tchar *m;\n\t\t\t\tint y,z;\n\t\t\t\tX509_NAME_oneline(X509_get_subject_name(x),\n\t\t\t\t\tbuf,256);\n\t\t\t\tBIO_printf(STDout,"/* subject:%s */\\n",buf);\n\t\t\t\tm=X509_NAME_oneline(\n\t\t\t\t\tX509_get_issuer_name(x),buf,256);\n\t\t\t\tBIO_printf(STDout,"/* issuer :%s */\\n",buf);\n\t\t\t\tz=i2d_X509(x,NULL);\n\t\t\t\tm=Malloc(z);\n\t\t\t\td=(unsigned char *)m;\n\t\t\t\tz=i2d_X509_NAME(X509_get_subject_name(x),&d);\n\t\t\t\tBIO_printf(STDout,"unsigned char XXX_subject_name[%d]={\\n",z);\n\t\t\t\td=(unsigned char *)m;\n\t\t\t\tfor (y=0; y<z; y++)\n\t\t\t\t\t{\n\t\t\t\t\tBIO_printf(STDout,"0x%02X,",d[y]);\n\t\t\t\t\tif ((y & 0x0f) == 0x0f) BIO_printf(STDout,"\\n");\n\t\t\t\t\t}\n\t\t\t\tif (y%16 != 0) BIO_printf(STDout,"\\n");\n\t\t\t\tBIO_printf(STDout,"};\\n");\n\t\t\t\tz=i2d_X509_PUBKEY(X509_get_X509_PUBKEY(x),&d);\n\t\t\t\tBIO_printf(STDout,"unsigned char XXX_public_key[%d]={\\n",z);\n\t\t\t\td=(unsigned char *)m;\n\t\t\t\tfor (y=0; y<z; y++)\n\t\t\t\t\t{\n\t\t\t\t\tBIO_printf(STDout,"0x%02X,",d[y]);\n\t\t\t\t\tif ((y & 0x0f) == 0x0f)\n\t\t\t\t\t\tBIO_printf(STDout,"\\n");\n\t\t\t\t\t}\n\t\t\t\tif (y%16 != 0) BIO_printf(STDout,"\\n");\n\t\t\t\tBIO_printf(STDout,"};\\n");\n\t\t\t\tz=i2d_X509(x,&d);\n\t\t\t\tBIO_printf(STDout,"unsigned char XXX_certificate[%d]={\\n",z);\n\t\t\t\td=(unsigned char *)m;\n\t\t\t\tfor (y=0; y<z; y++)\n\t\t\t\t\t{\n\t\t\t\t\tBIO_printf(STDout,"0x%02X,",d[y]);\n\t\t\t\t\tif ((y & 0x0f) == 0x0f)\n\t\t\t\t\t\tBIO_printf(STDout,"\\n");\n\t\t\t\t\t}\n\t\t\t\tif (y%16 != 0) BIO_printf(STDout,"\\n");\n\t\t\t\tBIO_printf(STDout,"};\\n");\n\t\t\t\tFree(m);\n\t\t\t\t}\n\t\t\telse if (text == i)\n\t\t\t\t{\n\t\t\t\tX509_print(out,x);\n\t\t\t\t}\n\t\t\telse if (startdate == i)\n\t\t\t\t{\n\t\t\t\tBIO_puts(STDout,"notBefore=");\n\t\t\t\tASN1_TIME_print(STDout,X509_get_notBefore(x));\n\t\t\t\tBIO_puts(STDout,"\\n");\n\t\t\t\t}\n\t\t\telse if (enddate == i)\n\t\t\t\t{\n\t\t\t\tBIO_puts(STDout,"notAfter=");\n\t\t\t\tASN1_TIME_print(STDout,X509_get_notAfter(x));\n\t\t\t\tBIO_puts(STDout,"\\n");\n\t\t\t\t}\n\t\t\telse if (fingerprint == i)\n\t\t\t\t{\n\t\t\t\tint j;\n\t\t\t\tunsigned int n;\n\t\t\t\tunsigned char md[EVP_MAX_MD_SIZE];\n\t\t\t\tif (!X509_digest(x,digest,md,&n))\n\t\t\t\t\t{\n\t\t\t\t\tBIO_printf(bio_err,"out of memory\\n");\n\t\t\t\t\tgoto end;\n\t\t\t\t\t}\n\t\t\t\tBIO_printf(STDout,"%s Fingerprint=",\n\t\t\t\t\t\tOBJ_nid2sn(EVP_MD_type(digest)));\n\t\t\t\tfor (j=0; j<(int)n; j++)\n\t\t\t\t\t{\n\t\t\t\t\tBIO_printf(STDout,"%02X%c",md[j],\n\t\t\t\t\t\t(j+1 == (int)n)\n\t\t\t\t\t\t?\'\\n\':\':\');\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\telse if ((sign_flag == i) && (x509req == 0))\n\t\t\t\t{\n\t\t\t\tBIO_printf(bio_err,"Getting Private key\\n");\n\t\t\t\tif (Upkey == NULL)\n\t\t\t\t\t{\n\t\t\t\t\tUpkey=load_key(keyfile,keyformat, passin);\n\t\t\t\t\tif (Upkey == NULL) goto end;\n\t\t\t\t\t}\n#ifndef NO_DSA\n\t\t if (Upkey->type == EVP_PKEY_DSA)\n\t\t digest=EVP_dss1();\n#endif\n\t\t\t\tassert(need_rand);\n\t\t\t\tif (!sign(x,Upkey,days,clrext,digest,\n\t\t\t\t\t\t extconf, extsect)) goto end;\n\t\t\t\t}\n\t\t\telse if (CA_flag == i)\n\t\t\t\t{\n\t\t\t\tBIO_printf(bio_err,"Getting CA Private Key\\n");\n\t\t\t\tif (CAkeyfile != NULL)\n\t\t\t\t\t{\n\t\t\t\t\tCApkey=load_key(CAkeyfile,CAkeyformat, passin);\n\t\t\t\t\tif (CApkey == NULL) goto end;\n\t\t\t\t\t}\n#ifndef NO_DSA\n\t\t if (CApkey->type == EVP_PKEY_DSA)\n\t\t digest=EVP_dss1();\n#endif\n\t\t\t\tassert(need_rand);\n\t\t\t\tif (!x509_certify(ctx,CAfile,digest,x,xca,\n\t\t\t\t\tCApkey, CAserial,CA_createserial,days, clrext,\n\t\t\t\t\textconf, extsect))\n\t\t\t\t\tgoto end;\n\t\t\t\t}\n\t\t\telse if (x509req == i)\n\t\t\t\t{\n\t\t\t\tEVP_PKEY *pk;\n\t\t\t\tBIO_printf(bio_err,"Getting request Private Key\\n");\n\t\t\t\tif (keyfile == NULL)\n\t\t\t\t\t{\n\t\t\t\t\tBIO_printf(bio_err,"no request key file specified\\n");\n\t\t\t\t\tgoto end;\n\t\t\t\t\t}\n\t\t\t\telse\n\t\t\t\t\t{\n\t\t\t\t\tpk=load_key(keyfile,FORMAT_PEM, passin);\n\t\t\t\t\tif (pk == NULL) goto end;\n\t\t\t\t\t}\n\t\t\t\tBIO_printf(bio_err,"Generating certificate request\\n");\n\t\t if (pk->type == EVP_PKEY_DSA)\n\t\t digest=EVP_dss1();\n\t\t\t\trq=X509_to_X509_REQ(x,pk,digest);\n\t\t\t\tEVP_PKEY_free(pk);\n\t\t\t\tif (rq == NULL)\n\t\t\t\t\t{\n\t\t\t\t\tERR_print_errors(bio_err);\n\t\t\t\t\tgoto end;\n\t\t\t\t\t}\n\t\t\t\tif (!noout)\n\t\t\t\t\t{\n\t\t\t\t\tX509_REQ_print(out,rq);\n\t\t\t\t\tPEM_write_bio_X509_REQ(out,rq);\n\t\t\t\t\t}\n\t\t\t\tnoout=1;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\tif (noout)\n\t\t{\n\t\tret=0;\n\t\tgoto end;\n\t\t}\n\tif \t(outformat == FORMAT_ASN1)\n\t\ti=i2d_X509_bio(out,x);\n\telse if (outformat == FORMAT_PEM) {\n\t\tif(trustout) i=PEM_write_bio_X509_AUX(out,x);\n\t\telse i=PEM_write_bio_X509(out,x);\n\t} else if (outformat == FORMAT_NETSCAPE)\n\t\t{\n\t\tASN1_HEADER ah;\n\t\tASN1_OCTET_STRING os;\n\t\tos.data=(unsigned char *)CERT_HDR;\n\t\tos.length=strlen(CERT_HDR);\n\t\tah.header= &os;\n\t\tah.data=(char *)x;\n\t\tah.meth=X509_asn1_meth();\n\t\ti=ASN1_i2d_bio(i2d_ASN1_HEADER,out,(unsigned char *)&ah);\n\t\t}\n\telse\t{\n\t\tBIO_printf(bio_err,"bad output format specified for outfile\\n");\n\t\tgoto end;\n\t\t}\n\tif (!i) {\n\t\tBIO_printf(bio_err,"unable to write certificate\\n");\n\t\tERR_print_errors(bio_err);\n\t\tgoto end;\n\t\t}\n\tret=0;\nend:\n\tif (need_rand)\n\t\tapp_RAND_write_file(NULL, bio_err);\n\tOBJ_cleanup();\n\tCONF_free(extconf);\n\tBIO_free(out);\n\tBIO_free(STDout);\n\tX509_STORE_free(ctx);\n\tX509_REQ_free(req);\n\tX509_free(x);\n\tX509_free(xca);\n\tEVP_PKEY_free(Upkey);\n\tEVP_PKEY_free(CApkey);\n\tX509_REQ_free(rq);\n\tsk_ASN1_OBJECT_pop_free(trust, ASN1_OBJECT_free);\n\tsk_ASN1_OBJECT_pop_free(reject, ASN1_OBJECT_free);\n\tif(passin) Free(passin);\n\tEXIT(ret);\n\t}', 'X509_STORE *X509_STORE_new(void)\n\t{\n\tX509_STORE *ret;\n\tif ((ret=(X509_STORE *)Malloc(sizeof(X509_STORE))) == NULL)\n\t\treturn(NULL);\n\tret->certs=lh_new(x509_object_hash,x509_object_cmp);\n\tret->cache=1;\n\tret->get_cert_methods=sk_X509_LOOKUP_new_null();\n\tret->verify=NULL;\n\tret->verify_cb=NULL;\n\tmemset(&ret->ex_data,0,sizeof(CRYPTO_EX_DATA));\n\tret->references=1;\n\tret->depth=0;\n\treturn(ret);\n\t}', 'LHASH *lh_new(unsigned long (*h)(), int (*c)())\n\t{\n\tLHASH *ret;\n\tint i;\n\tif ((ret=(LHASH *)Malloc(sizeof(LHASH))) == NULL)\n\t\tgoto err0;\n\tif ((ret->b=(LHASH_NODE **)Malloc(sizeof(LHASH_NODE *)*MIN_NODES)) == NULL)\n\t\tgoto err1;\n\tfor (i=0; i<MIN_NODES; i++)\n\t\tret->b[i]=NULL;\n\tret->comp=((c == NULL)?(int (*)())strcmp:c);\n\tret->hash=((h == NULL)?(unsigned long (*)())lh_strhash:h);\n\tret->num_nodes=MIN_NODES/2;\n\tret->num_alloc_nodes=MIN_NODES;\n\tret->p=0;\n\tret->pmax=MIN_NODES/2;\n\tret->up_load=UP_LOAD;\n\tret->down_load=DOWN_LOAD;\n\tret->num_items=0;\n\tret->num_expands=0;\n\tret->num_expand_reallocs=0;\n\tret->num_contracts=0;\n\tret->num_contract_reallocs=0;\n\tret->num_hash_calls=0;\n\tret->num_comp_calls=0;\n\tret->num_insert=0;\n\tret->num_replace=0;\n\tret->num_delete=0;\n\tret->num_no_delete=0;\n\tret->num_retrieve=0;\n\tret->num_retrieve_miss=0;\n\tret->num_hash_comps=0;\n\tret->error=0;\n\treturn(ret);\nerr1:\n\tFree(ret);\nerr0:\n\treturn(NULL);\n\t}', 'void X509_STORE_free(X509_STORE *vfy)\n\t{\n\tint i;\n\tSTACK_OF(X509_LOOKUP) *sk;\n\tX509_LOOKUP *lu;\n\tif(vfy == NULL)\n\t return;\n\tsk=vfy->get_cert_methods;\n\tfor (i=0; i<sk_X509_LOOKUP_num(sk); i++)\n\t\t{\n\t\tlu=sk_X509_LOOKUP_value(sk,i);\n\t\tX509_LOOKUP_shutdown(lu);\n\t\tX509_LOOKUP_free(lu);\n\t\t}\n\tsk_X509_LOOKUP_free(sk);\n\tCRYPTO_free_ex_data(x509_store_meth,vfy,&vfy->ex_data);\n\tlh_doall(vfy->certs,cleanup);\n\tlh_free(vfy->certs);\n\tFree(vfy);\n\t}', 'void lh_doall(LHASH *lh, void (*func)())\n\t{\n\tlh_doall_arg(lh,func,NULL);\n\t}', 'void lh_doall_arg(LHASH *lh, void (*func)(), void *arg)\n\t{\n\tint i;\n\tLHASH_NODE *a,*n;\n\tfor (i=lh->num_nodes-1; i>=0; i--)\n\t\t{\n\t\ta=lh->b[i];\n\t\twhile (a != NULL)\n\t\t\t{\n\t\t\tn=a->next;\n\t\t\tfunc(a->data,arg);\n\t\t\ta=n;\n\t\t\t}\n\t\t}\n\t}'] |
26,908 | 0 | https://github.com/libav/libav/blob/60d4c6ff76467d4d8f55c1cc61ab6c618e8ea2f3/libavformat/utils.c/#L2468 | 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 rtp_mpegts_write_close(AVFormatContext *s)\n{\n struct MuxChain *chain = s->priv_data;\n if (chain->mpegts_ctx) {\n av_write_trailer(chain->mpegts_ctx);\n if (chain->mpegts_ctx->pb) {\n uint8_t *buf;\n avio_close_dyn_buf(chain->mpegts_ctx->pb, &buf);\n av_free(buf);\n }\n avformat_free_context(chain->mpegts_ctx);\n }\n if (chain->rtp_ctx) {\n av_write_trailer(chain->rtp_ctx);\n avformat_free_context(chain->rtp_ctx);\n }\n return 0;\n}', 'int avio_close_dyn_buf(AVIOContext *s, uint8_t **pbuffer)\n{\n DynBuffer *d;\n int size;\n static const char padbuf[FF_INPUT_BUFFER_PADDING_SIZE] = {0};\n int padding = 0;\n if (!s) {\n *pbuffer = NULL;\n return 0;\n }\n if (!s->max_packet_size) {\n avio_write(s, padbuf, sizeof(padbuf));\n padding = FF_INPUT_BUFFER_PADDING_SIZE;\n }\n avio_flush(s);\n d = s->opaque;\n *pbuffer = d->buffer;\n size = d->size;\n av_free(d);\n av_free(s);\n return size - padding;\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}'] |
26,909 | 0 | https://github.com/libav/libav/blob/f40f329e9219a8dd7e585345a8ea294fa66562b9/libavcodec/mpegaudiodec.c/#L201 | static inline int l2_unscale_group(int steps, int mant, int scale_factor)
{
int shift, mod, val;
shift = scale_factor_modshift[scale_factor];
mod = shift & 3;
shift >>= 2;
val = (mant - (steps >> 1)) * scale_factor_mult2[steps >> 2][mod];
if (shift > 0)
val = (val + (1 << (shift - 1))) >> shift;
return val;
} | ['static int mp_decode_layer2(MPADecodeContext *s)\n{\n int sblimit;\n const unsigned char *alloc_table;\n int table, bit_alloc_bits, i, j, ch, bound, v;\n unsigned char bit_alloc[MPA_MAX_CHANNELS][SBLIMIT];\n unsigned char scale_code[MPA_MAX_CHANNELS][SBLIMIT];\n unsigned char scale_factors[MPA_MAX_CHANNELS][SBLIMIT][3], *sf;\n int scale, qindex, bits, steps, k, l, m, b;\n table = ff_mpa_l2_select_table(s->bit_rate / 1000, s->nb_channels,\n s->sample_rate, s->lsf);\n sblimit = ff_mpa_sblimit_table[table];\n alloc_table = ff_mpa_alloc_tables[table];\n if (s->mode == MPA_JSTEREO)\n bound = (s->mode_ext + 1) * 4;\n else\n bound = sblimit;\n dprintf(s->avctx, "bound=%d sblimit=%d\\n", bound, sblimit);\n if( bound > sblimit ) bound = sblimit;\n j = 0;\n for(i=0;i<bound;i++) {\n bit_alloc_bits = alloc_table[j];\n for(ch=0;ch<s->nb_channels;ch++) {\n bit_alloc[ch][i] = get_bits(&s->gb, bit_alloc_bits);\n }\n j += 1 << bit_alloc_bits;\n }\n for(i=bound;i<sblimit;i++) {\n bit_alloc_bits = alloc_table[j];\n v = get_bits(&s->gb, bit_alloc_bits);\n bit_alloc[0][i] = v;\n bit_alloc[1][i] = v;\n j += 1 << bit_alloc_bits;\n }\n for(i=0;i<sblimit;i++) {\n for(ch=0;ch<s->nb_channels;ch++) {\n if (bit_alloc[ch][i])\n scale_code[ch][i] = get_bits(&s->gb, 2);\n }\n }\n for(i=0;i<sblimit;i++) {\n for(ch=0;ch<s->nb_channels;ch++) {\n if (bit_alloc[ch][i]) {\n sf = scale_factors[ch][i];\n switch(scale_code[ch][i]) {\n default:\n case 0:\n sf[0] = get_bits(&s->gb, 6);\n sf[1] = get_bits(&s->gb, 6);\n sf[2] = get_bits(&s->gb, 6);\n break;\n case 2:\n sf[0] = get_bits(&s->gb, 6);\n sf[1] = sf[0];\n sf[2] = sf[0];\n break;\n case 1:\n sf[0] = get_bits(&s->gb, 6);\n sf[2] = get_bits(&s->gb, 6);\n sf[1] = sf[0];\n break;\n case 3:\n sf[0] = get_bits(&s->gb, 6);\n sf[2] = get_bits(&s->gb, 6);\n sf[1] = sf[2];\n break;\n }\n }\n }\n }\n for(k=0;k<3;k++) {\n for(l=0;l<12;l+=3) {\n j = 0;\n for(i=0;i<bound;i++) {\n bit_alloc_bits = alloc_table[j];\n for(ch=0;ch<s->nb_channels;ch++) {\n b = bit_alloc[ch][i];\n if (b) {\n scale = scale_factors[ch][i][k];\n qindex = alloc_table[j+b];\n bits = ff_mpa_quant_bits[qindex];\n if (bits < 0) {\n v = get_bits(&s->gb, -bits);\n steps = ff_mpa_quant_steps[qindex];\n s->sb_samples[ch][k * 12 + l + 0][i] =\n l2_unscale_group(steps, v % steps, scale);\n v = v / steps;\n s->sb_samples[ch][k * 12 + l + 1][i] =\n l2_unscale_group(steps, v % steps, scale);\n v = v / steps;\n s->sb_samples[ch][k * 12 + l + 2][i] =\n l2_unscale_group(steps, v, scale);\n } else {\n for(m=0;m<3;m++) {\n v = get_bits(&s->gb, bits);\n v = l1_unscale(bits - 1, v, scale);\n s->sb_samples[ch][k * 12 + l + m][i] = v;\n }\n }\n } else {\n s->sb_samples[ch][k * 12 + l + 0][i] = 0;\n s->sb_samples[ch][k * 12 + l + 1][i] = 0;\n s->sb_samples[ch][k * 12 + l + 2][i] = 0;\n }\n }\n j += 1 << bit_alloc_bits;\n }\n for(i=bound;i<sblimit;i++) {\n bit_alloc_bits = alloc_table[j];\n b = bit_alloc[0][i];\n if (b) {\n int mant, scale0, scale1;\n scale0 = scale_factors[0][i][k];\n scale1 = scale_factors[1][i][k];\n qindex = alloc_table[j+b];\n bits = ff_mpa_quant_bits[qindex];\n if (bits < 0) {\n v = get_bits(&s->gb, -bits);\n steps = ff_mpa_quant_steps[qindex];\n mant = v % steps;\n v = v / steps;\n s->sb_samples[0][k * 12 + l + 0][i] =\n l2_unscale_group(steps, mant, scale0);\n s->sb_samples[1][k * 12 + l + 0][i] =\n l2_unscale_group(steps, mant, scale1);\n mant = v % steps;\n v = v / steps;\n s->sb_samples[0][k * 12 + l + 1][i] =\n l2_unscale_group(steps, mant, scale0);\n s->sb_samples[1][k * 12 + l + 1][i] =\n l2_unscale_group(steps, mant, scale1);\n s->sb_samples[0][k * 12 + l + 2][i] =\n l2_unscale_group(steps, v, scale0);\n s->sb_samples[1][k * 12 + l + 2][i] =\n l2_unscale_group(steps, v, scale1);\n } else {\n for(m=0;m<3;m++) {\n mant = get_bits(&s->gb, bits);\n s->sb_samples[0][k * 12 + l + m][i] =\n l1_unscale(bits - 1, mant, scale0);\n s->sb_samples[1][k * 12 + l + m][i] =\n l1_unscale(bits - 1, mant, scale1);\n }\n }\n } else {\n s->sb_samples[0][k * 12 + l + 0][i] = 0;\n s->sb_samples[0][k * 12 + l + 1][i] = 0;\n s->sb_samples[0][k * 12 + l + 2][i] = 0;\n s->sb_samples[1][k * 12 + l + 0][i] = 0;\n s->sb_samples[1][k * 12 + l + 1][i] = 0;\n s->sb_samples[1][k * 12 + l + 2][i] = 0;\n }\n j += 1 << bit_alloc_bits;\n }\n for(i=sblimit;i<SBLIMIT;i++) {\n for(ch=0;ch<s->nb_channels;ch++) {\n s->sb_samples[ch][k * 12 + l + 0][i] = 0;\n s->sb_samples[ch][k * 12 + l + 1][i] = 0;\n s->sb_samples[ch][k * 12 + l + 2][i] = 0;\n }\n }\n }\n }\n return 3 * 12;\n}', 'static inline int l2_unscale_group(int steps, int mant, int scale_factor)\n{\n int shift, mod, val;\n shift = scale_factor_modshift[scale_factor];\n mod = shift & 3;\n shift >>= 2;\n val = (mant - (steps >> 1)) * scale_factor_mult2[steps >> 2][mod];\n if (shift > 0)\n val = (val + (1 << (shift - 1))) >> shift;\n return val;\n}'] |
26,910 | 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_from_mont_fixed_top(BIGNUM *ret, const BIGNUM *a, BN_MONT_CTX *mont,\n BN_CTX *ctx)\n{\n int retn = 0;\n#ifdef MONT_WORD\n BIGNUM *t;\n BN_CTX_start(ctx);\n if ((t = BN_CTX_get(ctx)) && BN_copy(t, a)) {\n retn = bn_from_montgomery_word(ret, t, mont);\n }\n BN_CTX_end(ctx);\n#else\n BIGNUM *t1, *t2;\n BN_CTX_start(ctx);\n t1 = BN_CTX_get(ctx);\n t2 = BN_CTX_get(ctx);\n if (t2 == NULL)\n goto err;\n if (!BN_copy(t1, a))\n goto err;\n BN_mask_bits(t1, mont->ri);\n if (!BN_mul(t2, t1, &mont->Ni, ctx))\n goto err;\n BN_mask_bits(t2, mont->ri);\n if (!BN_mul(t1, t2, &mont->N, ctx))\n goto err;\n if (!BN_add(t2, a, t1))\n goto err;\n if (!BN_rshift(ret, t2, mont->ri))\n goto err;\n if (BN_ucmp(ret, &(mont->N)) >= 0) {\n if (!BN_usub(ret, ret, &(mont->N)))\n goto err;\n }\n retn = 1;\n bn_check_top(ret);\n err:\n BN_CTX_end(ctx);\n#endif\n return retn;\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}', 'int bn_to_mont_fixed_top(BIGNUM *r, const BIGNUM *a, BN_MONT_CTX *mont,\n BN_CTX *ctx)\n{\n return bn_mul_mont_fixed_top(r, a, &(mont->RR), mont, ctx);\n}', 'int bn_mul_mont_fixed_top(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 int num = mont->N.top;\n#if defined(OPENSSL_BN_ASM_MONT) && defined(MONT_WORD)\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 r->flags |= BN_FLG_FIXED_TOP;\n return 1;\n }\n }\n#endif\n if ((a->top + b->top) > 2 * num)\n return 0;\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_fixed_top(tmp, a, ctx))\n goto err;\n } else {\n if (!bn_mul_fixed_top(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 ret = 1;\n err:\n BN_CTX_end(ctx);\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}', 'static unsigned int BN_STACK_pop(BN_STACK *st)\n{\n return st->indexes[--(st->depth)];\n}'] |
26,911 | 0 | https://github.com/libav/libav/blob/2c8077621b6466da205ba26fd20a9c906bb71893/ffmpeg.c/#L3765 | static void opt_vstats (void)
{
char filename[40];
time_t today2 = time(NULL);
struct tm *today = localtime(&today2);
snprintf(filename, sizeof(filename), "vstats_%02d%02d%02d.log", today->tm_hour, today->tm_min,
today->tm_sec);
opt_vstats_file(filename);
} | ['static void opt_vstats (void)\n{\n char filename[40];\n time_t today2 = time(NULL);\n struct tm *today = localtime(&today2);\n snprintf(filename, sizeof(filename), "vstats_%02d%02d%02d.log", today->tm_hour, today->tm_min,\n today->tm_sec);\n opt_vstats_file(filename);\n}'] |
26,912 | 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 DH_check_pub_key(const DH *dh, const BIGNUM *pub_key, int *ret)\n{\n int ok = 0;\n BIGNUM *tmp = NULL;\n BN_CTX *ctx = NULL;\n *ret = 0;\n ctx = BN_CTX_new();\n if (ctx == NULL)\n goto err;\n BN_CTX_start(ctx);\n tmp = BN_CTX_get(ctx);\n if (tmp == NULL || !BN_set_word(tmp, 1))\n goto err;\n if (BN_cmp(pub_key, tmp) <= 0)\n *ret |= DH_CHECK_PUBKEY_TOO_SMALL;\n if (BN_copy(tmp, dh->p) == NULL || !BN_sub_word(tmp, 1))\n goto err;\n if (BN_cmp(pub_key, tmp) >= 0)\n *ret |= DH_CHECK_PUBKEY_TOO_LARGE;\n if (dh->q != NULL) {\n if (!BN_mod_exp(tmp, pub_key, dh->q, dh->p, ctx))\n goto err;\n if (!BN_is_one(tmp))\n *ret |= DH_CHECK_PUBKEY_INVALID;\n }\n ok = 1;\n err:\n if (ctx != NULL) {\n BN_CTX_end(ctx);\n BN_CTX_free(ctx);\n }\n return (ok);\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}', '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}'] |
26,913 | 0 | https://github.com/openssl/openssl/blob/3208ff58ca59d143b49dd2f1c05fbc33cf35e64f/crypto/lhash/lhash.c/#L240 | void *lh_delete(LHASH *lh, const void *data)
{
unsigned long hash;
LHASH_NODE *nn,**rn;
const 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((void *)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 int 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 && (s->s3->tmp.new_cipher->algorithms & (SSL_MKEY_MASK|SSL_AUTH_MASK))\n != (SSL_aKRB5|SSL_kKRB5)\n#endif\n )\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 need_cert =\t((s->s3->tmp.new_cipher->algorithms\n\t\t\t& (SSL_MKEY_MASK|SSL_AUTH_MASK))\n == (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 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 if (need_cert)\n {\n sc->peer_cert_type=i;\n CRYPTO_add(&x->references,1,CRYPTO_LOCK_X509);\n if (sc->peer_pkeys[i].x509 != NULL)\n X509_free(sc->peer_pkeys[i].x509);\n sc->peer_pkeys[i].x509=x;\n sc->peer_key= &(sc->peer_pkeys[i]);\n if (s->session->peer != NULL)\n X509_free(s->session->peer);\n CRYPTO_add(&x->references,1,CRYPTO_LOCK_X509);\n s->session->peer=x;\n }\n else\n {\n sc->peer_cert_type=i;\n sc->peer_key= NULL;\n if (s->session->peer != NULL)\n X509_free(s->session->peer);\n s->session->peer=NULL;\n }\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}', 'long ssl3_get_message(SSL *s, int st1, int stn, int mt, long max, int *ok)\n\t{\n\tunsigned char *p;\n\tunsigned long l;\n\tlong n;\n\tint i,al;\n\tif (s->s3->tmp.reuse_message)\n\t\t{\n\t\ts->s3->tmp.reuse_message=0;\n\t\tif ((mt >= 0) && (s->s3->tmp.message_type != mt))\n\t\t\t{\n\t\t\tal=SSL_AD_UNEXPECTED_MESSAGE;\n\t\t\tSSLerr(SSL_F_SSL3_GET_MESSAGE,SSL_R_UNEXPECTED_MESSAGE);\n\t\t\tgoto f_err;\n\t\t\t}\n\t\t*ok=1;\n\t\ts->init_msg = s->init_buf->data + 4;\n\t\ts->init_num = (int)s->s3->tmp.message_size;\n\t\treturn s->init_num;\n\t\t}\n\tp=(unsigned char *)s->init_buf->data;\n\tif (s->state == st1)\n\t\t{\n\t\tint skip_message;\n\t\tdo\n\t\t\t{\n\t\t\twhile (s->init_num < 4)\n\t\t\t\t{\n\t\t\t\ti=ssl3_read_bytes(s,SSL3_RT_HANDSHAKE,&p[s->init_num],\n\t\t\t\t\t4 - s->init_num, 0);\n\t\t\t\tif (i <= 0)\n\t\t\t\t\t{\n\t\t\t\t\ts->rwstate=SSL_READING;\n\t\t\t\t\t*ok = 0;\n\t\t\t\t\treturn i;\n\t\t\t\t\t}\n\t\t\t\ts->init_num+=i;\n\t\t\t\t}\n\t\t\tskip_message = 0;\n\t\t\tif (!s->server)\n\t\t\t\tif (p[0] == SSL3_MT_HELLO_REQUEST)\n\t\t\t\t\tif (p[1] == 0 && p[2] == 0 &&p[3] == 0)\n\t\t\t\t\t\t{\n\t\t\t\t\t\ts->init_num = 0;\n\t\t\t\t\t\tskip_message = 1;\n\t\t\t\t\t\tif (s->msg_callback)\n\t\t\t\t\t\t\ts->msg_callback(0, s->version, SSL3_RT_HANDSHAKE, p, 4, s, s->msg_callback_arg);\n\t\t\t\t\t\t}\n\t\t\t}\n\t\twhile (skip_message);\n\t\tif ((mt >= 0) && (*p != mt))\n\t\t\t{\n\t\t\tal=SSL_AD_UNEXPECTED_MESSAGE;\n\t\t\tSSLerr(SSL_F_SSL3_GET_MESSAGE,SSL_R_UNEXPECTED_MESSAGE);\n\t\t\tgoto f_err;\n\t\t\t}\n\t\tif ((mt < 0) && (*p == SSL3_MT_CLIENT_HELLO) &&\n\t\t\t\t\t(st1 == SSL3_ST_SR_CERT_A) &&\n\t\t\t\t\t(stn == SSL3_ST_SR_CERT_B))\n\t\t\t{\n\t\t\tssl3_init_finished_mac(s);\n\t\t\t}\n\t\ts->s3->tmp.message_type= *(p++);\n\t\tn2l3(p,l);\n\t\tif (l > (unsigned long)max)\n\t\t\t{\n\t\t\tal=SSL_AD_ILLEGAL_PARAMETER;\n\t\t\tSSLerr(SSL_F_SSL3_GET_MESSAGE,SSL_R_EXCESSIVE_MESSAGE_SIZE);\n\t\t\tgoto f_err;\n\t\t\t}\n\t\tif (l > (INT_MAX-4))\n\t\t\t{\n\t\t\tal=SSL_AD_ILLEGAL_PARAMETER;\n\t\t\tSSLerr(SSL_F_SSL3_GET_MESSAGE,SSL_R_EXCESSIVE_MESSAGE_SIZE);\n\t\t\tgoto f_err;\n\t\t\t}\n\t\tif (l && !BUF_MEM_grow(s->init_buf,(int)l+4))\n\t\t\t{\n\t\t\tSSLerr(SSL_F_SSL3_GET_MESSAGE,ERR_R_BUF_LIB);\n\t\t\tgoto err;\n\t\t\t}\n\t\ts->s3->tmp.message_size=l;\n\t\ts->state=stn;\n\t\ts->init_msg = s->init_buf->data + 4;\n\t\ts->init_num = 0;\n\t\t}\n\tp = s->init_msg;\n\tn = s->s3->tmp.message_size - s->init_num;\n\twhile (n > 0)\n\t\t{\n\t\ti=ssl3_read_bytes(s,SSL3_RT_HANDSHAKE,&p[s->init_num],n,0);\n\t\tif (i <= 0)\n\t\t\t{\n\t\t\ts->rwstate=SSL_READING;\n\t\t\t*ok = 0;\n\t\t\treturn i;\n\t\t\t}\n\t\ts->init_num += i;\n\t\tn -= i;\n\t\t}\n\tssl3_finish_mac(s, (unsigned char *)s->init_buf->data, s->init_num + 4);\n\tif (s->msg_callback)\n\t\ts->msg_callback(0, s->version, SSL3_RT_HANDSHAKE, s->init_buf->data, (size_t)s->init_num + 4, s, s->msg_callback_arg);\n\t*ok=1;\n\treturn s->init_num;\nf_err:\n\tssl3_send_alert(s,SSL3_AL_FATAL,al);\nerr:\n\t*ok=0;\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 (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\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\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}'] |
26,914 | 0 | https://github.com/libav/libav/blob/33147993689223956d735e691dca45588a10c28f/ffmpeg.c/#L3224 | static void new_audio_stream(AVFormatContext *oc)
{
AVStream *st;
AVCodecContext *audio_enc;
enum CodecID codec_id;
st = av_new_stream(oc, oc->nb_streams);
if (!st) {
fprintf(stderr, "Could not alloc stream\n");
av_exit(1);
}
avcodec_get_context_defaults2(st->codec, CODEC_TYPE_AUDIO);
bitstream_filters[nb_output_files][oc->nb_streams - 1]= audio_bitstream_filters;
audio_bitstream_filters= NULL;
avcodec_thread_init(st->codec, thread_count);
audio_enc = st->codec;
audio_enc->codec_type = CODEC_TYPE_AUDIO;
if(audio_codec_tag)
audio_enc->codec_tag= audio_codec_tag;
if (oc->oformat->flags & AVFMT_GLOBALHEADER) {
audio_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
avcodec_opts[CODEC_TYPE_AUDIO]->flags|= CODEC_FLAG_GLOBAL_HEADER;
}
if (audio_stream_copy) {
st->stream_copy = 1;
audio_enc->channels = audio_channels;
} else {
AVCodec *codec;
set_context_opts(audio_enc, avcodec_opts[CODEC_TYPE_AUDIO], AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM);
if (audio_codec_name) {
codec_id = find_codec_or_die(audio_codec_name, CODEC_TYPE_AUDIO, 1);
codec = avcodec_find_encoder_by_name(audio_codec_name);
output_codecs[nb_ocodecs] = codec;
} else {
codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, CODEC_TYPE_AUDIO);
codec = avcodec_find_encoder(codec_id);
}
audio_enc->codec_id = codec_id;
if (audio_qscale > QSCALE_NONE) {
audio_enc->flags |= CODEC_FLAG_QSCALE;
audio_enc->global_quality = st->quality = FF_QP2LAMBDA * audio_qscale;
}
audio_enc->channels = audio_channels;
audio_enc->sample_fmt = audio_sample_fmt;
audio_enc->channel_layout = channel_layout;
if (avcodec_channel_layout_num_channels(channel_layout) != audio_channels)
audio_enc->channel_layout = 0;
if(codec && codec->sample_fmts){
const enum SampleFormat *p= codec->sample_fmts;
for(; *p!=-1; p++){
if(*p == audio_enc->sample_fmt)
break;
}
if(*p == -1)
audio_enc->sample_fmt = codec->sample_fmts[0];
}
}
nb_ocodecs++;
audio_enc->sample_rate = audio_sample_rate;
audio_enc->time_base= (AVRational){1, audio_sample_rate};
if (audio_language) {
av_metadata_set(&st->metadata, "language", audio_language);
av_freep(&audio_language);
}
audio_disable = 0;
av_freep(&audio_codec_name);
audio_stream_copy = 0;
} | ['static void new_audio_stream(AVFormatContext *oc)\n{\n AVStream *st;\n AVCodecContext *audio_enc;\n enum CodecID codec_id;\n st = av_new_stream(oc, oc->nb_streams);\n if (!st) {\n fprintf(stderr, "Could not alloc stream\\n");\n av_exit(1);\n }\n avcodec_get_context_defaults2(st->codec, CODEC_TYPE_AUDIO);\n bitstream_filters[nb_output_files][oc->nb_streams - 1]= audio_bitstream_filters;\n audio_bitstream_filters= NULL;\n avcodec_thread_init(st->codec, thread_count);\n audio_enc = st->codec;\n audio_enc->codec_type = CODEC_TYPE_AUDIO;\n if(audio_codec_tag)\n audio_enc->codec_tag= audio_codec_tag;\n if (oc->oformat->flags & AVFMT_GLOBALHEADER) {\n audio_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;\n avcodec_opts[CODEC_TYPE_AUDIO]->flags|= CODEC_FLAG_GLOBAL_HEADER;\n }\n if (audio_stream_copy) {\n st->stream_copy = 1;\n audio_enc->channels = audio_channels;\n } else {\n AVCodec *codec;\n set_context_opts(audio_enc, avcodec_opts[CODEC_TYPE_AUDIO], AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM);\n if (audio_codec_name) {\n codec_id = find_codec_or_die(audio_codec_name, CODEC_TYPE_AUDIO, 1);\n codec = avcodec_find_encoder_by_name(audio_codec_name);\n output_codecs[nb_ocodecs] = codec;\n } else {\n codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, CODEC_TYPE_AUDIO);\n codec = avcodec_find_encoder(codec_id);\n }\n audio_enc->codec_id = codec_id;\n if (audio_qscale > QSCALE_NONE) {\n audio_enc->flags |= CODEC_FLAG_QSCALE;\n audio_enc->global_quality = st->quality = FF_QP2LAMBDA * audio_qscale;\n }\n audio_enc->channels = audio_channels;\n audio_enc->sample_fmt = audio_sample_fmt;\n audio_enc->channel_layout = channel_layout;\n if (avcodec_channel_layout_num_channels(channel_layout) != audio_channels)\n audio_enc->channel_layout = 0;\n if(codec && codec->sample_fmts){\n const enum SampleFormat *p= codec->sample_fmts;\n for(; *p!=-1; p++){\n if(*p == audio_enc->sample_fmt)\n break;\n }\n if(*p == -1)\n audio_enc->sample_fmt = codec->sample_fmts[0];\n }\n }\n nb_ocodecs++;\n audio_enc->sample_rate = audio_sample_rate;\n audio_enc->time_base= (AVRational){1, audio_sample_rate};\n if (audio_language) {\n av_metadata_set(&st->metadata, "language", audio_language);\n av_freep(&audio_language);\n }\n audio_disable = 0;\n av_freep(&audio_codec_name);\n audio_stream_copy = 0;\n}', 'AVStream *av_new_stream(AVFormatContext *s, int id)\n{\n AVStream *st;\n int i;\n if (s->nb_streams >= MAX_STREAMS)\n return NULL;\n st = av_mallocz(sizeof(AVStream));\n if (!st)\n return NULL;\n st->codec= avcodec_alloc_context();\n if (s->iformat) {\n st->codec->bit_rate = 0;\n }\n st->index = s->nb_streams;\n st->id = id;\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}'] |
26,915 | 1 | https://github.com/openssl/openssl/blob/305b68f1a2b6d4d0aa07a6ab47ac372f067a40bb/crypto/bn/bn_sqr.c/#L114 | 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);
} | ['static int old_ec_priv_decode(EVP_PKEY *pkey,\n const unsigned char **pder, int derlen)\n{\n EC_KEY *ec;\n if ((ec = d2i_ECPrivateKey(NULL, pder, derlen)) == NULL) {\n ECerr(EC_F_OLD_EC_PRIV_DECODE, EC_R_DECODE_ERROR);\n return 0;\n }\n EVP_PKEY_assign_EC_KEY(pkey, ec);\n return 1;\n}', 'EC_KEY *d2i_ECPrivateKey(EC_KEY **a, const unsigned char **in, long len)\n{\n EC_KEY *ret = NULL;\n EC_PRIVATEKEY *priv_key = NULL;\n const unsigned char *p = *in;\n if ((priv_key = d2i_EC_PRIVATEKEY(NULL, &p, len)) == NULL) {\n ECerr(EC_F_D2I_ECPRIVATEKEY, ERR_R_EC_LIB);\n return NULL;\n }\n if (a == NULL || *a == NULL) {\n if ((ret = EC_KEY_new()) == NULL) {\n ECerr(EC_F_D2I_ECPRIVATEKEY, ERR_R_MALLOC_FAILURE);\n goto err;\n }\n } else\n ret = *a;\n if (priv_key->parameters) {\n EC_GROUP_clear_free(ret->group);\n ret->group = EC_GROUP_new_from_ecpkparameters(priv_key->parameters);\n }\n if (ret->group == NULL) {\n ECerr(EC_F_D2I_ECPRIVATEKEY, ERR_R_EC_LIB);\n goto err;\n }\n ret->version = priv_key->version;\n if (priv_key->privateKey) {\n ASN1_OCTET_STRING *pkey = priv_key->privateKey;\n if (EC_KEY_oct2priv(ret, ASN1_STRING_get0_data(pkey),\n ASN1_STRING_length(pkey)) == 0)\n goto err;\n } else {\n ECerr(EC_F_D2I_ECPRIVATEKEY, EC_R_MISSING_PRIVATE_KEY);\n goto err;\n }\n EC_POINT_clear_free(ret->pub_key);\n ret->pub_key = EC_POINT_new(ret->group);\n if (ret->pub_key == NULL) {\n ECerr(EC_F_D2I_ECPRIVATEKEY, ERR_R_EC_LIB);\n goto err;\n }\n if (priv_key->publicKey) {\n const unsigned char *pub_oct;\n int pub_oct_len;\n pub_oct = ASN1_STRING_get0_data(priv_key->publicKey);\n pub_oct_len = ASN1_STRING_length(priv_key->publicKey);\n if (!EC_KEY_oct2key(ret, pub_oct, pub_oct_len, NULL)) {\n ECerr(EC_F_D2I_ECPRIVATEKEY, ERR_R_EC_LIB);\n goto err;\n }\n } else {\n if (ret->group->meth->keygenpub == NULL\n || ret->group->meth->keygenpub(ret) == 0)\n goto err;\n ret->enc_flag |= EC_PKEY_NO_PUBKEY;\n }\n if (a)\n *a = ret;\n EC_PRIVATEKEY_free(priv_key);\n *in = p;\n return ret;\n err:\n if (a == NULL || *a != ret)\n EC_KEY_free(ret);\n EC_PRIVATEKEY_free(priv_key);\n return NULL;\n}', 'int EC_KEY_oct2key(EC_KEY *key, const unsigned char *buf, size_t len,\n BN_CTX *ctx)\n{\n if (key == NULL || key->group == NULL)\n return 0;\n if (key->pub_key == NULL)\n key->pub_key = EC_POINT_new(key->group);\n if (key->pub_key == NULL)\n return 0;\n if (EC_POINT_oct2point(key->group, key->pub_key, buf, len, ctx) == 0)\n return 0;\n if ((key->group->meth->flags & EC_FLAGS_CUSTOM_CURVE) == 0)\n key->conv_form = (point_conversion_form_t)(buf[0] & ~0x01);\n return 1;\n}', 'int EC_POINT_oct2point(const EC_GROUP *group, EC_POINT *point,\n const unsigned char *buf, size_t len, BN_CTX *ctx)\n{\n if (group->meth->oct2point == 0\n && !(group->meth->flags & EC_FLAGS_DEFAULT_OCT)) {\n ECerr(EC_F_EC_POINT_OCT2POINT, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);\n return 0;\n }\n if (!ec_point_is_compat(point, group)) {\n ECerr(EC_F_EC_POINT_OCT2POINT, EC_R_INCOMPATIBLE_OBJECTS);\n return 0;\n }\n if (group->meth->flags & EC_FLAGS_DEFAULT_OCT) {\n if (group->meth->field_type == NID_X9_62_prime_field)\n return ec_GFp_simple_oct2point(group, point, buf, len, ctx);\n else\n#ifdef OPENSSL_NO_EC2M\n {\n ECerr(EC_F_EC_POINT_OCT2POINT, EC_R_GF2M_NOT_SUPPORTED);\n return 0;\n }\n#else\n return ec_GF2m_simple_oct2point(group, point, buf, len, ctx);\n#endif\n }\n return group->meth->oct2point(group, point, buf, len, ctx);\n}', 'int ec_GF2m_simple_oct2point(const EC_GROUP *group, EC_POINT *point,\n const unsigned char *buf, size_t len,\n BN_CTX *ctx)\n{\n point_conversion_form_t form;\n int y_bit;\n BN_CTX *new_ctx = NULL;\n BIGNUM *x, *y, *yxi;\n size_t field_len, enc_len;\n int ret = 0;\n if (len == 0) {\n ECerr(EC_F_EC_GF2M_SIMPLE_OCT2POINT, EC_R_BUFFER_TOO_SMALL);\n return 0;\n }\n form = buf[0];\n y_bit = form & 1;\n form = form & ~1U;\n if ((form != 0) && (form != POINT_CONVERSION_COMPRESSED)\n && (form != POINT_CONVERSION_UNCOMPRESSED)\n && (form != POINT_CONVERSION_HYBRID)) {\n ECerr(EC_F_EC_GF2M_SIMPLE_OCT2POINT, EC_R_INVALID_ENCODING);\n return 0;\n }\n if ((form == 0 || form == POINT_CONVERSION_UNCOMPRESSED) && y_bit) {\n ECerr(EC_F_EC_GF2M_SIMPLE_OCT2POINT, EC_R_INVALID_ENCODING);\n return 0;\n }\n if (form == 0) {\n if (len != 1) {\n ECerr(EC_F_EC_GF2M_SIMPLE_OCT2POINT, EC_R_INVALID_ENCODING);\n return 0;\n }\n return EC_POINT_set_to_infinity(group, point);\n }\n field_len = (EC_GROUP_get_degree(group) + 7) / 8;\n enc_len =\n (form ==\n POINT_CONVERSION_COMPRESSED) ? 1 + field_len : 1 + 2 * field_len;\n if (len != enc_len) {\n ECerr(EC_F_EC_GF2M_SIMPLE_OCT2POINT, EC_R_INVALID_ENCODING);\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 x = BN_CTX_get(ctx);\n y = BN_CTX_get(ctx);\n yxi = BN_CTX_get(ctx);\n if (yxi == NULL)\n goto err;\n if (!BN_bin2bn(buf + 1, field_len, x))\n goto err;\n if (BN_ucmp(x, group->field) >= 0) {\n ECerr(EC_F_EC_GF2M_SIMPLE_OCT2POINT, EC_R_INVALID_ENCODING);\n goto err;\n }\n if (form == POINT_CONVERSION_COMPRESSED) {\n if (!EC_POINT_set_compressed_coordinates_GF2m\n (group, point, x, y_bit, ctx))\n goto err;\n } else {\n if (!BN_bin2bn(buf + 1 + field_len, field_len, y))\n goto err;\n if (BN_ucmp(y, group->field) >= 0) {\n ECerr(EC_F_EC_GF2M_SIMPLE_OCT2POINT, EC_R_INVALID_ENCODING);\n goto err;\n }\n if (form == POINT_CONVERSION_HYBRID) {\n if (!group->meth->field_div(group, yxi, y, x, ctx))\n goto err;\n if (y_bit != BN_is_odd(yxi)) {\n ECerr(EC_F_EC_GF2M_SIMPLE_OCT2POINT, EC_R_INVALID_ENCODING);\n goto err;\n }\n }\n if (!EC_POINT_set_affine_coordinates_GF2m(group, point, x, y, ctx))\n goto err;\n }\n ret = 1;\n err:\n BN_CTX_end(ctx);\n BN_CTX_free(new_ctx);\n return ret;\n}', 'int EC_POINT_set_compressed_coordinates_GF2m(const EC_GROUP *group,\n EC_POINT *point, const BIGNUM *x,\n int y_bit, BN_CTX *ctx)\n{\n if (group->meth->point_set_compressed_coordinates == 0\n && !(group->meth->flags & EC_FLAGS_DEFAULT_OCT)) {\n ECerr(EC_F_EC_POINT_SET_COMPRESSED_COORDINATES_GF2M,\n ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);\n return 0;\n }\n if (!ec_point_is_compat(point, group)) {\n ECerr(EC_F_EC_POINT_SET_COMPRESSED_COORDINATES_GF2M,\n EC_R_INCOMPATIBLE_OBJECTS);\n return 0;\n }\n if (group->meth->flags & EC_FLAGS_DEFAULT_OCT) {\n if (group->meth->field_type == NID_X9_62_prime_field)\n return ec_GFp_simple_set_compressed_coordinates(group, point, x,\n y_bit, ctx);\n else\n return ec_GF2m_simple_set_compressed_coordinates(group, point, x,\n y_bit, ctx);\n }\n return group->meth->point_set_compressed_coordinates(group, point, x,\n y_bit, ctx);\n}', 'int ec_GFp_simple_set_compressed_coordinates(const EC_GROUP *group,\n EC_POINT *point,\n const BIGNUM *x_, int y_bit,\n BN_CTX *ctx)\n{\n BN_CTX *new_ctx = NULL;\n BIGNUM *tmp1, *tmp2, *x, *y;\n int ret = 0;\n ERR_clear_error();\n if (ctx == NULL) {\n ctx = new_ctx = BN_CTX_new();\n if (ctx == NULL)\n return 0;\n }\n y_bit = (y_bit != 0);\n BN_CTX_start(ctx);\n tmp1 = BN_CTX_get(ctx);\n tmp2 = BN_CTX_get(ctx);\n x = BN_CTX_get(ctx);\n y = BN_CTX_get(ctx);\n if (y == NULL)\n goto err;\n if (!BN_nnmod(x, x_, group->field, ctx))\n goto err;\n if (group->meth->field_decode == 0) {\n if (!group->meth->field_sqr(group, tmp2, x_, ctx))\n goto err;\n if (!group->meth->field_mul(group, tmp1, tmp2, x_, ctx))\n goto err;\n } else {\n if (!BN_mod_sqr(tmp2, x_, group->field, ctx))\n goto err;\n if (!BN_mod_mul(tmp1, tmp2, x_, group->field, ctx))\n goto err;\n }\n if (group->a_is_minus3) {\n if (!BN_mod_lshift1_quick(tmp2, x, group->field))\n goto err;\n if (!BN_mod_add_quick(tmp2, tmp2, x, group->field))\n goto err;\n if (!BN_mod_sub_quick(tmp1, tmp1, tmp2, group->field))\n goto err;\n } else {\n if (group->meth->field_decode) {\n if (!group->meth->field_decode(group, tmp2, group->a, ctx))\n goto err;\n if (!BN_mod_mul(tmp2, tmp2, x, group->field, ctx))\n goto err;\n } else {\n if (!group->meth->field_mul(group, tmp2, group->a, x, ctx))\n goto err;\n }\n if (!BN_mod_add_quick(tmp1, tmp1, tmp2, group->field))\n goto err;\n }\n if (group->meth->field_decode) {\n if (!group->meth->field_decode(group, tmp2, group->b, ctx))\n goto err;\n if (!BN_mod_add_quick(tmp1, tmp1, tmp2, group->field))\n goto err;\n } else {\n if (!BN_mod_add_quick(tmp1, tmp1, group->b, group->field))\n goto err;\n }\n if (!BN_mod_sqrt(y, tmp1, group->field, ctx)) {\n unsigned long err = ERR_peek_last_error();\n if (ERR_GET_LIB(err) == ERR_LIB_BN\n && ERR_GET_REASON(err) == BN_R_NOT_A_SQUARE) {\n ERR_clear_error();\n ECerr(EC_F_EC_GFP_SIMPLE_SET_COMPRESSED_COORDINATES,\n EC_R_INVALID_COMPRESSED_POINT);\n } else\n ECerr(EC_F_EC_GFP_SIMPLE_SET_COMPRESSED_COORDINATES,\n ERR_R_BN_LIB);\n goto err;\n }\n if (y_bit != BN_is_odd(y)) {\n if (BN_is_zero(y)) {\n int kron;\n kron = BN_kronecker(x, group->field, ctx);\n if (kron == -2)\n goto err;\n if (kron == 1)\n ECerr(EC_F_EC_GFP_SIMPLE_SET_COMPRESSED_COORDINATES,\n EC_R_INVALID_COMPRESSION_BIT);\n else\n ECerr(EC_F_EC_GFP_SIMPLE_SET_COMPRESSED_COORDINATES,\n EC_R_INVALID_COMPRESSED_POINT);\n goto err;\n }\n if (!BN_usub(y, group->field, y))\n goto err;\n }\n if (y_bit != BN_is_odd(y)) {\n ECerr(EC_F_EC_GFP_SIMPLE_SET_COMPRESSED_COORDINATES,\n ERR_R_INTERNAL_ERROR);\n goto err;\n }\n if (!EC_POINT_set_affine_coordinates_GFp(group, point, x, y, ctx))\n goto err;\n ret = 1;\n err:\n BN_CTX_end(ctx);\n BN_CTX_free(new_ctx);\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}', '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}', 'BIGNUM *BN_mod_sqrt(BIGNUM *in, const BIGNUM *a, const BIGNUM *p, BN_CTX *ctx)\n{\n BIGNUM *ret = in;\n int err = 1;\n int r;\n BIGNUM *A, *b, *q, *t, *x, *y;\n int e, i, j;\n if (!BN_is_odd(p) || BN_abs_is_word(p, 1)) {\n if (BN_abs_is_word(p, 2)) {\n if (ret == NULL)\n ret = BN_new();\n if (ret == NULL)\n goto end;\n if (!BN_set_word(ret, BN_is_bit_set(a, 0))) {\n if (ret != in)\n BN_free(ret);\n return NULL;\n }\n bn_check_top(ret);\n return ret;\n }\n BNerr(BN_F_BN_MOD_SQRT, BN_R_P_IS_NOT_PRIME);\n return NULL;\n }\n if (BN_is_zero(a) || BN_is_one(a)) {\n if (ret == NULL)\n ret = BN_new();\n if (ret == NULL)\n goto end;\n if (!BN_set_word(ret, BN_is_one(a))) {\n if (ret != in)\n BN_free(ret);\n return NULL;\n }\n bn_check_top(ret);\n return ret;\n }\n BN_CTX_start(ctx);\n A = BN_CTX_get(ctx);\n b = BN_CTX_get(ctx);\n q = BN_CTX_get(ctx);\n t = BN_CTX_get(ctx);\n x = BN_CTX_get(ctx);\n y = BN_CTX_get(ctx);\n if (y == NULL)\n goto end;\n if (ret == NULL)\n ret = BN_new();\n if (ret == NULL)\n goto end;\n if (!BN_nnmod(A, a, p, ctx))\n goto end;\n e = 1;\n while (!BN_is_bit_set(p, e))\n e++;\n if (e == 1) {\n if (!BN_rshift(q, p, 2))\n goto end;\n q->neg = 0;\n if (!BN_add_word(q, 1))\n goto end;\n if (!BN_mod_exp(ret, A, q, p, ctx))\n goto end;\n err = 0;\n goto vrfy;\n }\n if (e == 2) {\n if (!BN_mod_lshift1_quick(t, A, p))\n goto end;\n if (!BN_rshift(q, p, 3))\n goto end;\n q->neg = 0;\n if (!BN_mod_exp(b, t, q, p, ctx))\n goto end;\n if (!BN_mod_sqr(y, b, p, ctx))\n goto end;\n if (!BN_mod_mul(t, t, y, p, ctx))\n goto end;\n if (!BN_sub_word(t, 1))\n goto end;\n if (!BN_mod_mul(x, A, b, p, ctx))\n goto end;\n if (!BN_mod_mul(x, x, t, p, ctx))\n goto end;\n if (!BN_copy(ret, x))\n goto end;\n err = 0;\n goto vrfy;\n }\n if (!BN_copy(q, p))\n goto end;\n q->neg = 0;\n i = 2;\n do {\n if (i < 22) {\n if (!BN_set_word(y, i))\n goto end;\n } else {\n if (!BN_priv_rand(y, BN_num_bits(p), 0, 0))\n goto end;\n if (BN_ucmp(y, p) >= 0) {\n if (!(p->neg ? BN_add : BN_sub) (y, y, p))\n goto end;\n }\n if (BN_is_zero(y))\n if (!BN_set_word(y, i))\n goto end;\n }\n r = BN_kronecker(y, q, ctx);\n if (r < -1)\n goto end;\n if (r == 0) {\n BNerr(BN_F_BN_MOD_SQRT, BN_R_P_IS_NOT_PRIME);\n goto end;\n }\n }\n while (r == 1 && ++i < 82);\n if (r != -1) {\n BNerr(BN_F_BN_MOD_SQRT, BN_R_TOO_MANY_ITERATIONS);\n goto end;\n }\n if (!BN_rshift(q, q, e))\n goto end;\n if (!BN_mod_exp(y, y, q, p, ctx))\n goto end;\n if (BN_is_one(y)) {\n BNerr(BN_F_BN_MOD_SQRT, BN_R_P_IS_NOT_PRIME);\n goto end;\n }\n if (!BN_rshift1(t, q))\n goto end;\n if (BN_is_zero(t)) {\n if (!BN_nnmod(t, A, p, ctx))\n goto end;\n if (BN_is_zero(t)) {\n BN_zero(ret);\n err = 0;\n goto end;\n } else if (!BN_one(x))\n goto end;\n } else {\n if (!BN_mod_exp(x, A, t, p, ctx))\n goto end;\n if (BN_is_zero(x)) {\n BN_zero(ret);\n err = 0;\n goto end;\n }\n }\n if (!BN_mod_sqr(b, x, p, ctx))\n goto end;\n if (!BN_mod_mul(b, b, A, p, ctx))\n goto end;\n if (!BN_mod_mul(x, x, A, p, ctx))\n goto end;\n while (1) {\n if (BN_is_one(b)) {\n if (!BN_copy(ret, x))\n goto end;\n err = 0;\n goto vrfy;\n }\n i = 1;\n if (!BN_mod_sqr(t, b, p, ctx))\n goto end;\n while (!BN_is_one(t)) {\n i++;\n if (i == e) {\n BNerr(BN_F_BN_MOD_SQRT, BN_R_NOT_A_SQUARE);\n goto end;\n }\n if (!BN_mod_mul(t, t, t, p, ctx))\n goto end;\n }\n if (!BN_copy(t, y))\n goto end;\n for (j = e - i - 1; j > 0; j--) {\n if (!BN_mod_sqr(t, t, p, ctx))\n goto end;\n }\n if (!BN_mod_mul(y, t, t, p, ctx))\n goto end;\n if (!BN_mod_mul(x, x, t, p, ctx))\n goto end;\n if (!BN_mod_mul(b, b, y, p, ctx))\n goto end;\n e = i;\n }\n vrfy:\n if (!err) {\n if (!BN_mod_sqr(x, ret, p, ctx))\n err = 1;\n if (!err && 0 != BN_cmp(x, A)) {\n BNerr(BN_F_BN_MOD_SQRT, BN_R_NOT_A_SQUARE);\n err = 1;\n }\n }\n end:\n if (err) {\n if (ret != in)\n BN_clear_free(ret);\n ret = NULL;\n }\n BN_CTX_end(ctx);\n bn_check_top(ret);\n return ret;\n}', 'int BN_is_odd(const BIGNUM *a)\n{\n return (a->top > 0) && (a->d[0] & 1);\n}', 'int BN_abs_is_word(const BIGNUM *a, const BN_ULONG w)\n{\n return ((a->top == 1) && (a->d[0] == w)) || ((w == 0) && (a->top == 0));\n}', 'int BN_is_bit_set(const BIGNUM *a, int n)\n{\n int i, j;\n bn_check_top(a);\n if (n < 0)\n return 0;\n i = n / BN_BITS2;\n j = n % BN_BITS2;\n if (a->top <= i)\n return 0;\n return (int)(((a->d[i]) >> j) & ((BN_ULONG)1));\n}', 'int BN_rshift(BIGNUM *r, const BIGNUM *a, int n)\n{\n int i, j, nw, lb, rb;\n BN_ULONG *t, *f;\n BN_ULONG l, tmp;\n bn_check_top(r);\n bn_check_top(a);\n if (n < 0) {\n BNerr(BN_F_BN_RSHIFT, BN_R_INVALID_SHIFT);\n return 0;\n }\n nw = n / BN_BITS2;\n rb = n % BN_BITS2;\n lb = BN_BITS2 - rb;\n if (nw >= a->top || a->top == 0) {\n BN_zero(r);\n return 1;\n }\n i = (BN_num_bits(a) - n + (BN_BITS2 - 1)) / BN_BITS2;\n if (r != a) {\n if (bn_wexpand(r, i) == NULL)\n return 0;\n r->neg = a->neg;\n } else {\n if (n == 0)\n return 1;\n }\n f = &(a->d[nw]);\n t = r->d;\n j = a->top - nw;\n r->top = i;\n if (rb == 0) {\n for (i = j; i != 0; i--)\n *(t++) = *(f++);\n } else {\n l = *(f++);\n for (i = j - 1; i != 0; i--) {\n tmp = (l >> rb) & BN_MASK2;\n l = *(f++);\n *(t++) = (tmp | (l << lb)) & BN_MASK2;\n }\n if ((l = (l >> rb) & BN_MASK2))\n *(t) = l;\n }\n if (!r->top)\n r->neg = 0;\n bn_check_top(r);\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_get_flags(a, BN_FLG_CONSTTIME) == 0)\n && (BN_get_flags(m, 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(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_is_zero(aa)) {\n BN_zero(rr);\n ret = 1;\n goto err;\n }\n if (!BN_to_montgomery(val[0], aa, mont, ctx))\n goto err;\n window = BN_window_bits_for_exponent_size(bits);\n if (window > 1) {\n if (!BN_mod_mul_montgomery(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_mod_mul_montgomery(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 bn_correct_top(r);\n } else\n#endif\n if (!BN_to_montgomery(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_mod_mul_montgomery(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_mod_mul_montgomery(r, r, r, mont, ctx))\n goto err;\n }\n if (!BN_mod_mul_montgomery(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_montgomery(&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_montgomery(&am, &am, mont, ctx))\n goto err;\n } else if (!BN_to_montgomery(&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_mod_mul_montgomery(&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_mod_mul_montgomery(&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_mod_mul_montgomery(&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_mod_mul_montgomery(&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}', 'static int MOD_EXP_CTIME_COPY_FROM_PREBUF(BIGNUM *b, int top,\n unsigned char *buf, int idx,\n int window)\n{\n int i, j;\n int width = 1 << window;\n volatile BN_ULONG *table = (volatile BN_ULONG *)buf;\n if (bn_wexpand(b, top) == NULL)\n return 0;\n if (window <= 3) {\n for (i = 0; i < top; i++, table += width) {\n BN_ULONG acc = 0;\n for (j = 0; j < width; j++) {\n acc |= table[j] &\n ((BN_ULONG)0 - (constant_time_eq_int(j,idx)&1));\n }\n b->d[i] = acc;\n }\n } else {\n int xstride = 1 << (window - 2);\n BN_ULONG y0, y1, y2, y3;\n i = idx >> (window - 2);\n idx &= xstride - 1;\n y0 = (BN_ULONG)0 - (constant_time_eq_int(i,0)&1);\n y1 = (BN_ULONG)0 - (constant_time_eq_int(i,1)&1);\n y2 = (BN_ULONG)0 - (constant_time_eq_int(i,2)&1);\n y3 = (BN_ULONG)0 - (constant_time_eq_int(i,3)&1);\n for (i = 0; i < top; i++, table += width) {\n BN_ULONG acc = 0;\n for (j = 0; j < xstride; j++) {\n acc |= ( (table[j + 0 * xstride] & y0) |\n (table[j + 1 * xstride] & y1) |\n (table[j + 2 * xstride] & y2) |\n (table[j + 3 * xstride] & y3) )\n & ((BN_ULONG)0 - (constant_time_eq_int(j,idx)&1));\n }\n b->d[i] = acc;\n }\n }\n b->top = top;\n bn_correct_top(b);\n return 1;\n}', 'void bn_correct_top(BIGNUM *a)\n{\n BN_ULONG *ftl;\n int tmp_top = a->top;\n if (tmp_top > 0) {\n for (ftl = &(a->d[tmp_top]); tmp_top > 0; tmp_top--) {\n ftl--;\n if (*ftl != 0)\n break;\n }\n a->top = tmp_top;\n }\n if (a->top == 0)\n a->neg = 0;\n a->flags &= ~BN_FLG_FIXED_TOP;\n bn_pollute(a);\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 int num = mont->N.top;\n#if defined(OPENSSL_BN_ASM_MONT) && defined(MONT_WORD)\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 if ((a->top + b->top) > 2 * num)\n return 0;\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_sqr(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 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(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}'] |
26,916 | 0 | https://github.com/openssl/openssl/blob/7432d073af97539e5a2c8b0f1ff254d6b53c9682/crypto/lhash/lhash.c/#L368 | 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#if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE) || defined(OPENSSL_SYS_BEOS_R5)\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_TLSEXT\n\tif (s_tlsextdebug)\n\t\t{\n\t\tSSL_set_tlsext_debug_callback(con, tlsext_cb);\n\t\tSSL_set_tlsext_debug_arg(con, bio_s_out);\n\t\t}\n\tif (s_tlsextstatus)\n\t\t{\n\t\tSSL_CTX_set_tlsext_status_cb(ctx, cert_status_cb);\n\t\ttlscstatp.err = bio_err;\n\t\tSSL_CTX_set_tlsext_status_arg(ctx, &tlscstatp);\n\t\t}\n#endif\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#if 0\n#ifdef TLSEXT_TYPE_opaque_prf_input\n\tSSL_set_tlsext_opaque_prf_input(con, "Test server", 11);\n#endif\n#endif\n\tif (SSL_version(con) == DTLS1_VERSION)\n\t\t{\n\t\tstruct timeval timeout;\n\t\tsbio=BIO_new_dgram(s,BIO_NOCLOSE);\n\t\tif (enable_timeouts)\n\t\t\t{\n\t\t\ttimeout.tv_sec = 0;\n\t\t\ttimeout.tv_usec = DGRAM_RCV_TIMEOUT;\n\t\t\tBIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout);\n\t\t\ttimeout.tv_sec = 0;\n\t\t\ttimeout.tv_usec = DGRAM_SND_TIMEOUT;\n\t\t\tBIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout);\n\t\t\t}\n\t\tif (socket_mtu > 0)\n\t\t\t{\n\t\t\tSSL_set_options(con, SSL_OP_NO_QUERY_MTU);\n\t\t\tSSL_set_mtu(con, socket_mtu);\n\t\t\t}\n\t\telse\n\t\t\tBIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL);\n SSL_set_options(con, SSL_OP_COOKIE_EXCHANGE);\n\t\t}\n\telse\n\t\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_callback);\n\t\tBIO_set_callback_arg(SSL_get_rbio(con),(char *)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#ifndef OPENSSL_NO_TLSEXT\n\tif (s_tlsextdebug)\n\t\t{\n\t\tSSL_set_tlsext_debug_callback(con, tlsext_cb);\n\t\tSSL_set_tlsext_debug_arg(con, bio_s_out);\n\t\t}\n#endif\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#if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_NETWARE) && !defined(OPENSSL_SYS_BEOS_R5)\n\t\t\topenssl_fdset(fileno(stdin),&readfds);\n#endif\n\t\t\topenssl_fdset(s,&readfds);\n#if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE)\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#elif defined(OPENSSL_SYS_BEOS_R5)\n\t\t\ttv.tv_sec = 1;\n\t\t\ttv.tv_usec = 0;\n\t\t\t(void)fcntl(fileno(stdin), F_SETFL, O_NONBLOCK);\n\t\t\ti=select(width,(void *)&readfds,NULL,NULL,&tv);\n\t\t\tif ((i < 0) || (!i && read(fileno(stdin), buf, 0) < 0))\n\t\t\t\tcontinue;\n\t\t\tif (read(fileno(stdin), buf, 0) >= 0)\n\t\t\t\tread_from_terminal = 1;\n\t\t\t(void)fcntl(fileno(stdin), F_SETFL, 0);\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=raw_read_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=raw_read_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\tif (SSL_version(con) != DTLS1_VERSION)\n SHUTDOWN(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 const 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\traw_write_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\tif (con != NULL)\n\t\t{\n\t\tBIO_printf(bio_s_out,"shutting down SSL\\n");\n#if 1\n\t\tSSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);\n#else\n\t\tSSL_shutdown(con);\n#endif\n\t\tSSL_free(con);\n\t\t}\n\tBIO_printf(bio_s_out,"CONNECTION CLOSED\\n");\n\tif (buf != NULL)\n\t\t{\n\t\tOPENSSL_cleanse(buf,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#if 0\n\ts->verify_depth=ctx->verify_depth;\n#endif\n\ts->sid_ctx_length=ctx->sid_ctx_length;\n\tOPENSSL_assert(s->sid_ctx_length <= sizeof s->sid_ctx);\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->param = X509_VERIFY_PARAM_new();\n\tif (!s->param)\n\t\tgoto err;\n\tX509_VERIFY_PARAM_inherit(s->param, ctx->param);\n#if 0\n\ts->purpose = ctx->purpose;\n\ts->trust = ctx->trust;\n#endif\n\ts->quiet_shutdown=ctx->quiet_shutdown;\n\ts->max_send_fragment = ctx->max_send_fragment;\n\tCRYPTO_add(&ctx->references,1,CRYPTO_LOCK_SSL_CTX);\n\ts->ctx=ctx;\n#ifndef OPENSSL_NO_TLSEXT\n\ts->tlsext_debug_cb = 0;\n\ts->tlsext_debug_arg = NULL;\n\ts->tlsext_ticket_expected = 0;\n\ts->tlsext_status_type = -1;\n\ts->tlsext_status_expected = 0;\n\ts->tlsext_ocsp_ids = NULL;\n\ts->tlsext_ocsp_exts = NULL;\n\ts->tlsext_ocsp_resp = NULL;\n\ts->tlsext_ocsp_resplen = -1;\n\tCRYPTO_add(&ctx->references,1,CRYPTO_LOCK_SSL_CTX);\n\ts->initial_ctx=ctx;\n#endif\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#ifndef OPENSSL_NO_PSK\n\ts->psk_client_callback=ctx->psk_client_callback;\n\ts->psk_server_callback=ctx->psk_server_callback;\n#endif\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\tssl_clear_hash_ctx(&s->read_hash);\n\tssl_clear_hash_ctx(&s->write_hash);\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\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}', '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}'] |
26,917 | 0 | https://github.com/openssl/openssl/blob/5d1c09de1f2736e1d4b1877206d08455ec75f558/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;
} | ['static int rsa_ossl_private_encrypt(int flen, const unsigned char *from,\n unsigned char *to, RSA *rsa, int padding)\n{\n BIGNUM *f, *ret, *res;\n int i, num = 0, r = -1;\n unsigned char *buf = NULL;\n BN_CTX *ctx = NULL;\n int local_blinding = 0;\n BIGNUM *unblind = NULL;\n BN_BLINDING *blinding = NULL;\n if ((ctx = BN_CTX_new()) == NULL)\n goto err;\n BN_CTX_start(ctx);\n f = BN_CTX_get(ctx);\n ret = BN_CTX_get(ctx);\n num = BN_num_bytes(rsa->n);\n buf = OPENSSL_malloc(num);\n if (ret == NULL || buf == NULL) {\n RSAerr(RSA_F_RSA_OSSL_PRIVATE_ENCRYPT, ERR_R_MALLOC_FAILURE);\n goto err;\n }\n switch (padding) {\n case RSA_PKCS1_PADDING:\n i = RSA_padding_add_PKCS1_type_1(buf, num, from, flen);\n break;\n case RSA_X931_PADDING:\n i = RSA_padding_add_X931(buf, num, from, flen);\n break;\n case RSA_NO_PADDING:\n i = RSA_padding_add_none(buf, num, from, flen);\n break;\n case RSA_SSLV23_PADDING:\n default:\n RSAerr(RSA_F_RSA_OSSL_PRIVATE_ENCRYPT, RSA_R_UNKNOWN_PADDING_TYPE);\n goto err;\n }\n if (i <= 0)\n goto err;\n if (BN_bin2bn(buf, num, f) == NULL)\n goto err;\n if (BN_ucmp(f, rsa->n) >= 0) {\n RSAerr(RSA_F_RSA_OSSL_PRIVATE_ENCRYPT,\n RSA_R_DATA_TOO_LARGE_FOR_MODULUS);\n goto err;\n }\n if (!(rsa->flags & RSA_FLAG_NO_BLINDING)) {\n blinding = rsa_get_blinding(rsa, &local_blinding, ctx);\n if (blinding == NULL) {\n RSAerr(RSA_F_RSA_OSSL_PRIVATE_ENCRYPT, ERR_R_INTERNAL_ERROR);\n goto err;\n }\n }\n if (blinding != NULL) {\n if (!local_blinding && ((unblind = BN_CTX_get(ctx)) == NULL)) {\n RSAerr(RSA_F_RSA_OSSL_PRIVATE_ENCRYPT, ERR_R_MALLOC_FAILURE);\n goto err;\n }\n if (!rsa_blinding_convert(blinding, f, unblind, ctx))\n goto err;\n }\n if ((rsa->flags & RSA_FLAG_EXT_PKEY) ||\n (rsa->version == RSA_ASN1_VERSION_MULTI) ||\n ((rsa->p != NULL) &&\n (rsa->q != NULL) &&\n (rsa->dmp1 != NULL) && (rsa->dmq1 != NULL) && (rsa->iqmp != NULL))) {\n if (!rsa->meth->rsa_mod_exp(ret, f, rsa, ctx))\n goto err;\n } else {\n BIGNUM *d = BN_new();\n if (d == NULL) {\n RSAerr(RSA_F_RSA_OSSL_PRIVATE_ENCRYPT, ERR_R_MALLOC_FAILURE);\n goto err;\n }\n BN_with_flags(d, rsa->d, BN_FLG_CONSTTIME);\n if (rsa->flags & RSA_FLAG_CACHE_PUBLIC)\n if (!BN_MONT_CTX_set_locked\n (&rsa->_method_mod_n, rsa->lock, rsa->n, ctx)) {\n BN_free(d);\n goto err;\n }\n if (!rsa->meth->bn_mod_exp(ret, f, d, rsa->n, ctx,\n rsa->_method_mod_n)) {\n BN_free(d);\n goto err;\n }\n BN_free(d);\n }\n if (blinding)\n if (!rsa_blinding_invert(blinding, ret, unblind, ctx))\n goto err;\n if (padding == RSA_X931_PADDING) {\n BN_sub(f, rsa->n, ret);\n if (BN_cmp(ret, f) > 0)\n res = f;\n else\n res = ret;\n } else {\n res = ret;\n }\n r = BN_bn2binpad(res, to, num);\n err:\n if (ctx != NULL)\n BN_CTX_end(ctx);\n BN_CTX_free(ctx);\n OPENSSL_clear_free(buf, num);\n return r;\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_is_zero(const BIGNUM *a)\n{\n return a->top == 0;\n}', 'BN_MONT_CTX *BN_MONT_CTX_set_locked(BN_MONT_CTX **pmont, CRYPTO_RWLOCK *lock,\n const BIGNUM *mod, BN_CTX *ctx)\n{\n BN_MONT_CTX *ret;\n CRYPTO_THREAD_read_lock(lock);\n ret = *pmont;\n CRYPTO_THREAD_unlock(lock);\n if (ret)\n return ret;\n ret = BN_MONT_CTX_new();\n if (ret == NULL)\n return NULL;\n if (!BN_MONT_CTX_set(ret, mod, ctx)) {\n BN_MONT_CTX_free(ret);\n return NULL;\n }\n CRYPTO_THREAD_write_lock(lock);\n if (*pmont) {\n BN_MONT_CTX_free(ret);\n ret = *pmont;\n } else\n *pmont = ret;\n CRYPTO_THREAD_unlock(lock);\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_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}', 'BIGNUM *bn_wexpand(BIGNUM *a, int words)\n{\n return (words <= a->dmax) ? a : bn_expand2(a, words);\n}'] |
26,918 | 0 | https://github.com/libav/libav/blob/c41b9842ceac42bedfd74a7ba2d02add82f818a9/libavcodec/rv40.c/#L519 | 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->f.mb_type[mb_pos];
if(IS_INTRA(mbtype) || IS_SEPARATE_DC(mbtype))
r->cbp_luma [mb_pos] = r->deblock_coefs[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->f.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->f.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 = 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->f.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_adaptive_loop_filter(&r->rdsp, Y+4*s->linesize,
s->linesize, dither,
y_to_deblock & (MASK_BOTTOM << ij) ? clip[POS_CUR] : 0,
clip_cur, alpha, beta, betaY,
0, 0, 0);
}
if(y_v_deblock & (MASK_CUR << ij) && (i || !(mb_strong[POS_CUR] || mb_strong[POS_LEFT]))){
if(!i)
clip_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_adaptive_loop_filter(&r->rdsp, Y, s->linesize, dither,
clip_cur,
clip_left,
alpha, beta, betaY, 0, 0, 1);
}
if(!j && y_h_deblock & (MASK_CUR << i) && (mb_strong[POS_CUR] || mb_strong[POS_TOP])){
rv40_adaptive_loop_filter(&r->rdsp, Y, s->linesize, dither,
clip_cur,
mvmasks[POS_TOP] & (MASK_TOP << i) ? clip[POS_TOP] : 0,
alpha, beta, betaY, 0, 1, 0);
}
if(y_v_deblock & (MASK_CUR << ij) && !i && (mb_strong[POS_CUR] || mb_strong[POS_LEFT])){
clip_left = mvmasks[POS_LEFT] & (MASK_RIGHT << j) ? clip[POS_LEFT] : 0;
rv40_adaptive_loop_filter(&r->rdsp, Y, s->linesize, dither,
clip_cur,
clip_left,
alpha, beta, betaY, 0, 1, 1);
}
}
}
for(k = 0; k < 2; k++){
for(j = 0; j < 2; j++){
C = s->current_picture_ptr->f.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_adaptive_loop_filter(&r->rdsp, C+4*s->uvlinesize, s->uvlinesize, i*8,
clip_bot,
clip_cur,
alpha, beta, betaC, 1, 0, 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_adaptive_loop_filter(&r->rdsp, C, s->uvlinesize, j*8,
clip_cur,
clip_left,
alpha, beta, betaC, 1, 0, 1);
}
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_adaptive_loop_filter(&r->rdsp, C, s->uvlinesize, i*8,
clip_cur,
clip_top,
alpha, beta, betaC, 1, 1, 0);
}
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_adaptive_loop_filter(&r->rdsp, C, s->uvlinesize, j*8,
clip_cur,
clip_left,
alpha, beta, betaC, 1, 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->f.mb_type[mb_pos];\n if(IS_INTRA(mbtype) || IS_SEPARATE_DC(mbtype))\n r->cbp_luma [mb_pos] = r->deblock_coefs[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->f.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->f.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 = 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->f.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_adaptive_loop_filter(&r->rdsp, Y+4*s->linesize,\n s->linesize, dither,\n y_to_deblock & (MASK_BOTTOM << ij) ? clip[POS_CUR] : 0,\n clip_cur, alpha, beta, betaY,\n 0, 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 = 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_adaptive_loop_filter(&r->rdsp, Y, s->linesize, dither,\n clip_cur,\n clip_left,\n alpha, beta, betaY, 0, 0, 1);\n }\n if(!j && y_h_deblock & (MASK_CUR << i) && (mb_strong[POS_CUR] || mb_strong[POS_TOP])){\n rv40_adaptive_loop_filter(&r->rdsp, Y, s->linesize, dither,\n clip_cur,\n mvmasks[POS_TOP] & (MASK_TOP << i) ? clip[POS_TOP] : 0,\n alpha, beta, betaY, 0, 1, 0);\n }\n if(y_v_deblock & (MASK_CUR << ij) && !i && (mb_strong[POS_CUR] || mb_strong[POS_LEFT])){\n clip_left = mvmasks[POS_LEFT] & (MASK_RIGHT << j) ? clip[POS_LEFT] : 0;\n rv40_adaptive_loop_filter(&r->rdsp, Y, s->linesize, dither,\n clip_cur,\n clip_left,\n alpha, beta, betaY, 0, 1, 1);\n }\n }\n }\n for(k = 0; k < 2; k++){\n for(j = 0; j < 2; j++){\n C = s->current_picture_ptr->f.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_adaptive_loop_filter(&r->rdsp, C+4*s->uvlinesize, s->uvlinesize, i*8,\n clip_bot,\n clip_cur,\n alpha, beta, betaC, 1, 0, 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_adaptive_loop_filter(&r->rdsp, C, s->uvlinesize, j*8,\n clip_cur,\n clip_left,\n alpha, beta, betaC, 1, 0, 1);\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_adaptive_loop_filter(&r->rdsp, C, s->uvlinesize, i*8,\n clip_cur,\n clip_top,\n alpha, beta, betaC, 1, 1, 0);\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_adaptive_loop_filter(&r->rdsp, C, s->uvlinesize, j*8,\n clip_cur,\n clip_left,\n alpha, beta, betaC, 1, 1, 1);\n }\n }\n }\n }\n }\n}'] |
26,919 | 0 | https://github.com/libav/libav/blob/077b55943330150db0eafd36bbee614697cabd98/libavcodec/hevcpred_template.c/#L285 | static av_always_inline void FUNC(intra_pred)(HEVCContext *s, int x0, int y0,
int log2_size, int c_idx)
{
#define PU(x) \
((x) >> s->ps.sps->log2_min_pu_size)
#define MVF(x, y) \
(s->ref->tab_mvf[(x) + (y) * min_pu_width])
#define MVF_PU(x, y) \
MVF(PU(x0 + ((x) << hshift)), PU(y0 + ((y) << vshift)))
#define IS_INTRA(x, y) \
MVF_PU(x, y).is_intra
#define MIN_TB_ADDR_ZS(x, y) \
s->ps.pps->min_tb_addr_zs[(y) * s->ps.sps->min_tb_width + (x)]
#define EXTEND(ptr, val, len) \
do { \
pixel4 pix = PIXEL_SPLAT_X4(val); \
for (i = 0; i < (len); i += 4) \
AV_WN4P(ptr + i, pix); \
} while (0)
#define EXTEND_LEFT_CIP(ptr, start, length) \
for (i = (start); i > (start) - (length); i--) \
if (!IS_INTRA(i - 1, -1)) \
ptr[i - 1] = ptr[i]
#define EXTEND_RIGHT_CIP(ptr, start, length) \
for (i = (start); i < (start) + (length); i++) \
if (!IS_INTRA(i, -1)) \
ptr[i] = ptr[i - 1]
#define EXTEND_UP_CIP(ptr, start, length) \
for (i = (start); i > (start) - (length); i--) \
if (!IS_INTRA(-1, i - 1)) \
ptr[i - 1] = ptr[i]
#define EXTEND_UP_CIP_0(ptr, start, length) \
for (i = (start); i > (start) - (length); i--) \
ptr[i - 1] = ptr[i]
#define EXTEND_DOWN_CIP(ptr, start, length) \
for (i = (start); i < (start) + (length); i++) \
if (!IS_INTRA(-1, i)) \
ptr[i] = ptr[i - 1]
HEVCLocalContext *lc = &s->HEVClc;
int i;
int hshift = s->ps.sps->hshift[c_idx];
int vshift = s->ps.sps->vshift[c_idx];
int size = (1 << log2_size);
int size_in_luma = size << hshift;
int size_in_tbs = size_in_luma >> s->ps.sps->log2_min_tb_size;
int x = x0 >> hshift;
int y = y0 >> vshift;
int x_tb = x0 >> s->ps.sps->log2_min_tb_size;
int y_tb = y0 >> s->ps.sps->log2_min_tb_size;
int cur_tb_addr = MIN_TB_ADDR_ZS(x_tb, y_tb);
ptrdiff_t stride = s->frame->linesize[c_idx] / sizeof(pixel);
pixel *src = (pixel*)s->frame->data[c_idx] + x + y * stride;
int min_pu_width = s->ps.sps->min_pu_width;
enum IntraPredMode mode = c_idx ? lc->pu.intra_pred_mode_c :
lc->tu.cur_intra_pred_mode;
pixel left_array[2 * MAX_TB_SIZE + 1];
pixel filtered_left_array[2 * MAX_TB_SIZE + 1];
pixel top_array[2 * MAX_TB_SIZE + 1];
pixel filtered_top_array[2 * MAX_TB_SIZE + 1];
pixel *left = left_array + 1;
pixel *top = top_array + 1;
pixel *filtered_left = filtered_left_array + 1;
pixel *filtered_top = filtered_top_array + 1;
int cand_bottom_left = lc->na.cand_bottom_left && cur_tb_addr > MIN_TB_ADDR_ZS(x_tb - 1, y_tb + size_in_tbs);
int cand_left = lc->na.cand_left;
int cand_up_left = lc->na.cand_up_left;
int cand_up = lc->na.cand_up;
int cand_up_right = lc->na.cand_up_right && cur_tb_addr > MIN_TB_ADDR_ZS(x_tb + size_in_tbs, y_tb - 1);
int bottom_left_size = (FFMIN(y0 + 2 * size_in_luma, s->ps.sps->height) -
(y0 + size_in_luma)) >> vshift;
int top_right_size = (FFMIN(x0 + 2 * size_in_luma, s->ps.sps->width) -
(x0 + size_in_luma)) >> hshift;
if (s->ps.pps->constrained_intra_pred_flag == 1) {
int size_in_luma_pu = PU(size_in_luma);
int on_pu_edge_x = !(x0 & ((1 << s->ps.sps->log2_min_pu_size) - 1));
int on_pu_edge_y = !(y0 & ((1 << s->ps.sps->log2_min_pu_size) - 1));
if (!size_in_luma_pu)
size_in_luma_pu++;
if (cand_bottom_left == 1 && on_pu_edge_x) {
int x_left_pu = PU(x0 - 1);
int y_bottom_pu = PU(y0 + size_in_luma);
int max = FFMIN(size_in_luma_pu, s->ps.sps->min_pu_height - y_bottom_pu);
cand_bottom_left = 0;
for (i = 0; i < max; i++)
cand_bottom_left |= MVF(x_left_pu, y_bottom_pu + i).is_intra;
}
if (cand_left == 1 && on_pu_edge_x) {
int x_left_pu = PU(x0 - 1);
int y_left_pu = PU(y0);
int max = FFMIN(size_in_luma_pu, s->ps.sps->min_pu_height - y_left_pu);
cand_left = 0;
for (i = 0; i < max; i++)
cand_left |= MVF(x_left_pu, y_left_pu + i).is_intra;
}
if (cand_up_left == 1) {
int x_left_pu = PU(x0 - 1);
int y_top_pu = PU(y0 - 1);
cand_up_left = MVF(x_left_pu, y_top_pu).is_intra;
}
if (cand_up == 1 && on_pu_edge_y) {
int x_top_pu = PU(x0);
int y_top_pu = PU(y0 - 1);
int max = FFMIN(size_in_luma_pu, s->ps.sps->min_pu_width - x_top_pu);
cand_up = 0;
for (i = 0; i < max; i++)
cand_up |= MVF(x_top_pu + i, y_top_pu).is_intra;
}
if (cand_up_right == 1 && on_pu_edge_y) {
int y_top_pu = PU(y0 - 1);
int x_right_pu = PU(x0 + size_in_luma);
int max = FFMIN(size_in_luma_pu, s->ps.sps->min_pu_width - x_right_pu);
cand_up_right = 0;
for (i = 0; i < max; i++)
cand_up_right |= MVF(x_right_pu + i, y_top_pu).is_intra;
}
for (i = 0; i < 2 * MAX_TB_SIZE; i++) {
left[i] = 128;
top[i] = 128;
}
}
if (cand_bottom_left) {
for (i = size; i < size + bottom_left_size; i++)
left[i] = POS(-1, i);
EXTEND(left + size + bottom_left_size, POS(-1, size + bottom_left_size - 1),
size - bottom_left_size);
}
if (cand_left)
for (i = size - 1; i >= 0; i--)
left[i] = POS(-1, i);
if (cand_up_left) {
left[-1] = POS(-1, -1);
top[-1] = left[-1];
}
if (cand_up)
memcpy(top, src - stride, size * sizeof(pixel));
if (cand_up_right) {
memcpy(top + size, src - stride + size, size * sizeof(pixel));
EXTEND(top + size + top_right_size, POS(size + top_right_size - 1, -1),
size - top_right_size);
}
if (s->ps.pps->constrained_intra_pred_flag == 1) {
if (cand_bottom_left || cand_left || cand_up_left || cand_up || cand_up_right) {
int size_max_x = x0 + ((2 * size) << hshift) < s->ps.sps->width ?
2 * size : (s->ps.sps->width - x0) >> hshift;
int size_max_y = y0 + ((2 * size) << vshift) < s->ps.sps->height ?
2 * size : (s->ps.sps->height - y0) >> vshift;
int j = size + (cand_bottom_left? bottom_left_size: 0) -1;
if (!cand_up_right) {
size_max_x = x0 + ((size) << hshift) < s->ps.sps->width ?
size : (s->ps.sps->width - x0) >> hshift;
}
if (!cand_bottom_left) {
size_max_y = y0 + (( size) << vshift) < s->ps.sps->height ?
size : (s->ps.sps->height - y0) >> vshift;
}
if (cand_bottom_left || cand_left || cand_up_left) {
while (j > -1 && !IS_INTRA(-1, j))
j--;
if (!IS_INTRA(-1, j)) {
j = 0;
while (j < size_max_x && !IS_INTRA(j, -1))
j++;
EXTEND_LEFT_CIP(top, j, j + 1);
left[-1] = top[-1];
j = 0;
}
} else {
j = 0;
while (j < size_max_x && !IS_INTRA(j, -1))
j++;
if (j > 0)
if (x0 > 0) {
EXTEND_LEFT_CIP(top, j, j + 1);
} else {
EXTEND_LEFT_CIP(top, j, j);
top[-1] = top[0];
}
left[-1] = top[-1];
j = 0;
}
if (cand_bottom_left || cand_left) {
EXTEND_DOWN_CIP(left, j, size_max_y - j);
}
if (!cand_left)
EXTEND(left, left[-1], size);
if (!cand_bottom_left)
EXTEND(left + size, left[size - 1], size);
if (x0 != 0 && y0 != 0) {
EXTEND_UP_CIP(left, size_max_y - 1, size_max_y);
} else if (x0 == 0) {
EXTEND_UP_CIP_0(left, size_max_y - 1, size_max_y);
} else {
EXTEND_UP_CIP(left, size_max_y - 1, size_max_y - 1);
}
top[-1] = left[-1];
if (y0 != 0) {
EXTEND_RIGHT_CIP(top, 0, size_max_x);
}
}
}
if (!cand_bottom_left) {
if (cand_left) {
EXTEND(left + size, left[size - 1], size);
} else if (cand_up_left) {
EXTEND(left, left[-1], 2 * size);
cand_left = 1;
} else if (cand_up) {
left[-1] = top[0];
EXTEND(left, left[-1], 2 * size);
cand_up_left = 1;
cand_left = 1;
} else if (cand_up_right) {
EXTEND(top, top[size], size);
left[-1] = top[size];
EXTEND(left, left[-1], 2 * size);
cand_up = 1;
cand_up_left = 1;
cand_left = 1;
} else {
left[-1] = (1 << (BIT_DEPTH - 1));
EXTEND(top, left[-1], 2 * size);
EXTEND(left, left[-1], 2 * size);
}
}
if (!cand_left)
EXTEND(left, left[size], size);
if (!cand_up_left) {
left[-1] = left[0];
}
if (!cand_up)
EXTEND(top, left[-1], size);
if (!cand_up_right)
EXTEND(top + size, top[size - 1], size);
top[-1] = left[-1];
if (c_idx == 0 && mode != INTRA_DC && size != 4) {
int intra_hor_ver_dist_thresh[] = { 7, 1, 0 };
int min_dist_vert_hor = FFMIN(FFABS((int)mode - 26),
FFABS((int)mode - 10));
if (min_dist_vert_hor > intra_hor_ver_dist_thresh[log2_size - 3]) {
int threshold = 1 << (BIT_DEPTH - 5);
if (s->ps.sps->sps_strong_intra_smoothing_enable_flag &&
log2_size == 5 &&
FFABS(top[-1] + top[63] - 2 * top[31]) < threshold &&
FFABS(left[-1] + left[63] - 2 * left[31]) < threshold) {
filtered_top[-1] = top[-1];
filtered_top[63] = top[63];
for (i = 0; i < 63; i++)
filtered_top[i] = ((64 - (i + 1)) * top[-1] +
(i + 1) * top[63] + 32) >> 6;
for (i = 0; i < 63; i++)
left[i] = ((64 - (i + 1)) * left[-1] +
(i + 1) * left[63] + 32) >> 6;
top = filtered_top;
} else {
filtered_left[2 * size - 1] = left[2 * size - 1];
filtered_top[2 * size - 1] = top[2 * size - 1];
for (i = 2 * size - 2; i >= 0; i--)
filtered_left[i] = (left[i + 1] + 2 * left[i] +
left[i - 1] + 2) >> 2;
filtered_top[-1] =
filtered_left[-1] = (left[0] + 2 * left[-1] + top[0] + 2) >> 2;
for (i = 2 * size - 2; i >= 0; i--)
filtered_top[i] = (top[i + 1] + 2 * top[i] +
top[i - 1] + 2) >> 2;
left = filtered_left;
top = filtered_top;
}
}
}
switch (mode) {
case INTRA_PLANAR:
s->hpc.pred_planar[log2_size - 2]((uint8_t *)src, (uint8_t *)top,
(uint8_t *)left, stride);
break;
case INTRA_DC:
s->hpc.pred_dc((uint8_t *)src, (uint8_t *)top,
(uint8_t *)left, stride, log2_size, c_idx);
break;
default:
s->hpc.pred_angular[log2_size - 2]((uint8_t *)src, (uint8_t *)top,
(uint8_t *)left, stride, c_idx,
mode);
break;
}
} | ['INTRA_PRED(2)', 'static av_always_inline void FUNC(intra_pred)(HEVCContext *s, int x0, int y0,\n int log2_size, int c_idx)\n{\n#define PU(x) \\\n ((x) >> s->ps.sps->log2_min_pu_size)\n#define MVF(x, y) \\\n (s->ref->tab_mvf[(x) + (y) * min_pu_width])\n#define MVF_PU(x, y) \\\n MVF(PU(x0 + ((x) << hshift)), PU(y0 + ((y) << vshift)))\n#define IS_INTRA(x, y) \\\n MVF_PU(x, y).is_intra\n#define MIN_TB_ADDR_ZS(x, y) \\\n s->ps.pps->min_tb_addr_zs[(y) * s->ps.sps->min_tb_width + (x)]\n#define EXTEND(ptr, val, len) \\\ndo { \\\n pixel4 pix = PIXEL_SPLAT_X4(val); \\\n for (i = 0; i < (len); i += 4) \\\n AV_WN4P(ptr + i, pix); \\\n} while (0)\n#define EXTEND_LEFT_CIP(ptr, start, length) \\\n for (i = (start); i > (start) - (length); i--) \\\n if (!IS_INTRA(i - 1, -1)) \\\n ptr[i - 1] = ptr[i]\n#define EXTEND_RIGHT_CIP(ptr, start, length) \\\n for (i = (start); i < (start) + (length); i++) \\\n if (!IS_INTRA(i, -1)) \\\n ptr[i] = ptr[i - 1]\n#define EXTEND_UP_CIP(ptr, start, length) \\\n for (i = (start); i > (start) - (length); i--) \\\n if (!IS_INTRA(-1, i - 1)) \\\n ptr[i - 1] = ptr[i]\n#define EXTEND_UP_CIP_0(ptr, start, length) \\\n for (i = (start); i > (start) - (length); i--) \\\n ptr[i - 1] = ptr[i]\n#define EXTEND_DOWN_CIP(ptr, start, length) \\\n for (i = (start); i < (start) + (length); i++) \\\n if (!IS_INTRA(-1, i)) \\\n ptr[i] = ptr[i - 1]\n HEVCLocalContext *lc = &s->HEVClc;\n int i;\n int hshift = s->ps.sps->hshift[c_idx];\n int vshift = s->ps.sps->vshift[c_idx];\n int size = (1 << log2_size);\n int size_in_luma = size << hshift;\n int size_in_tbs = size_in_luma >> s->ps.sps->log2_min_tb_size;\n int x = x0 >> hshift;\n int y = y0 >> vshift;\n int x_tb = x0 >> s->ps.sps->log2_min_tb_size;\n int y_tb = y0 >> s->ps.sps->log2_min_tb_size;\n int cur_tb_addr = MIN_TB_ADDR_ZS(x_tb, y_tb);\n ptrdiff_t stride = s->frame->linesize[c_idx] / sizeof(pixel);\n pixel *src = (pixel*)s->frame->data[c_idx] + x + y * stride;\n int min_pu_width = s->ps.sps->min_pu_width;\n enum IntraPredMode mode = c_idx ? lc->pu.intra_pred_mode_c :\n lc->tu.cur_intra_pred_mode;\n pixel left_array[2 * MAX_TB_SIZE + 1];\n pixel filtered_left_array[2 * MAX_TB_SIZE + 1];\n pixel top_array[2 * MAX_TB_SIZE + 1];\n pixel filtered_top_array[2 * MAX_TB_SIZE + 1];\n pixel *left = left_array + 1;\n pixel *top = top_array + 1;\n pixel *filtered_left = filtered_left_array + 1;\n pixel *filtered_top = filtered_top_array + 1;\n int cand_bottom_left = lc->na.cand_bottom_left && cur_tb_addr > MIN_TB_ADDR_ZS(x_tb - 1, y_tb + size_in_tbs);\n int cand_left = lc->na.cand_left;\n int cand_up_left = lc->na.cand_up_left;\n int cand_up = lc->na.cand_up;\n int cand_up_right = lc->na.cand_up_right && cur_tb_addr > MIN_TB_ADDR_ZS(x_tb + size_in_tbs, y_tb - 1);\n int bottom_left_size = (FFMIN(y0 + 2 * size_in_luma, s->ps.sps->height) -\n (y0 + size_in_luma)) >> vshift;\n int top_right_size = (FFMIN(x0 + 2 * size_in_luma, s->ps.sps->width) -\n (x0 + size_in_luma)) >> hshift;\n if (s->ps.pps->constrained_intra_pred_flag == 1) {\n int size_in_luma_pu = PU(size_in_luma);\n int on_pu_edge_x = !(x0 & ((1 << s->ps.sps->log2_min_pu_size) - 1));\n int on_pu_edge_y = !(y0 & ((1 << s->ps.sps->log2_min_pu_size) - 1));\n if (!size_in_luma_pu)\n size_in_luma_pu++;\n if (cand_bottom_left == 1 && on_pu_edge_x) {\n int x_left_pu = PU(x0 - 1);\n int y_bottom_pu = PU(y0 + size_in_luma);\n int max = FFMIN(size_in_luma_pu, s->ps.sps->min_pu_height - y_bottom_pu);\n cand_bottom_left = 0;\n for (i = 0; i < max; i++)\n cand_bottom_left |= MVF(x_left_pu, y_bottom_pu + i).is_intra;\n }\n if (cand_left == 1 && on_pu_edge_x) {\n int x_left_pu = PU(x0 - 1);\n int y_left_pu = PU(y0);\n int max = FFMIN(size_in_luma_pu, s->ps.sps->min_pu_height - y_left_pu);\n cand_left = 0;\n for (i = 0; i < max; i++)\n cand_left |= MVF(x_left_pu, y_left_pu + i).is_intra;\n }\n if (cand_up_left == 1) {\n int x_left_pu = PU(x0 - 1);\n int y_top_pu = PU(y0 - 1);\n cand_up_left = MVF(x_left_pu, y_top_pu).is_intra;\n }\n if (cand_up == 1 && on_pu_edge_y) {\n int x_top_pu = PU(x0);\n int y_top_pu = PU(y0 - 1);\n int max = FFMIN(size_in_luma_pu, s->ps.sps->min_pu_width - x_top_pu);\n cand_up = 0;\n for (i = 0; i < max; i++)\n cand_up |= MVF(x_top_pu + i, y_top_pu).is_intra;\n }\n if (cand_up_right == 1 && on_pu_edge_y) {\n int y_top_pu = PU(y0 - 1);\n int x_right_pu = PU(x0 + size_in_luma);\n int max = FFMIN(size_in_luma_pu, s->ps.sps->min_pu_width - x_right_pu);\n cand_up_right = 0;\n for (i = 0; i < max; i++)\n cand_up_right |= MVF(x_right_pu + i, y_top_pu).is_intra;\n }\n for (i = 0; i < 2 * MAX_TB_SIZE; i++) {\n left[i] = 128;\n top[i] = 128;\n }\n }\n if (cand_bottom_left) {\n for (i = size; i < size + bottom_left_size; i++)\n left[i] = POS(-1, i);\n EXTEND(left + size + bottom_left_size, POS(-1, size + bottom_left_size - 1),\n size - bottom_left_size);\n }\n if (cand_left)\n for (i = size - 1; i >= 0; i--)\n left[i] = POS(-1, i);\n if (cand_up_left) {\n left[-1] = POS(-1, -1);\n top[-1] = left[-1];\n }\n if (cand_up)\n memcpy(top, src - stride, size * sizeof(pixel));\n if (cand_up_right) {\n memcpy(top + size, src - stride + size, size * sizeof(pixel));\n EXTEND(top + size + top_right_size, POS(size + top_right_size - 1, -1),\n size - top_right_size);\n }\n if (s->ps.pps->constrained_intra_pred_flag == 1) {\n if (cand_bottom_left || cand_left || cand_up_left || cand_up || cand_up_right) {\n int size_max_x = x0 + ((2 * size) << hshift) < s->ps.sps->width ?\n 2 * size : (s->ps.sps->width - x0) >> hshift;\n int size_max_y = y0 + ((2 * size) << vshift) < s->ps.sps->height ?\n 2 * size : (s->ps.sps->height - y0) >> vshift;\n int j = size + (cand_bottom_left? bottom_left_size: 0) -1;\n if (!cand_up_right) {\n size_max_x = x0 + ((size) << hshift) < s->ps.sps->width ?\n size : (s->ps.sps->width - x0) >> hshift;\n }\n if (!cand_bottom_left) {\n size_max_y = y0 + (( size) << vshift) < s->ps.sps->height ?\n size : (s->ps.sps->height - y0) >> vshift;\n }\n if (cand_bottom_left || cand_left || cand_up_left) {\n while (j > -1 && !IS_INTRA(-1, j))\n j--;\n if (!IS_INTRA(-1, j)) {\n j = 0;\n while (j < size_max_x && !IS_INTRA(j, -1))\n j++;\n EXTEND_LEFT_CIP(top, j, j + 1);\n left[-1] = top[-1];\n j = 0;\n }\n } else {\n j = 0;\n while (j < size_max_x && !IS_INTRA(j, -1))\n j++;\n if (j > 0)\n if (x0 > 0) {\n EXTEND_LEFT_CIP(top, j, j + 1);\n } else {\n EXTEND_LEFT_CIP(top, j, j);\n top[-1] = top[0];\n }\n left[-1] = top[-1];\n j = 0;\n }\n if (cand_bottom_left || cand_left) {\n EXTEND_DOWN_CIP(left, j, size_max_y - j);\n }\n if (!cand_left)\n EXTEND(left, left[-1], size);\n if (!cand_bottom_left)\n EXTEND(left + size, left[size - 1], size);\n if (x0 != 0 && y0 != 0) {\n EXTEND_UP_CIP(left, size_max_y - 1, size_max_y);\n } else if (x0 == 0) {\n EXTEND_UP_CIP_0(left, size_max_y - 1, size_max_y);\n } else {\n EXTEND_UP_CIP(left, size_max_y - 1, size_max_y - 1);\n }\n top[-1] = left[-1];\n if (y0 != 0) {\n EXTEND_RIGHT_CIP(top, 0, size_max_x);\n }\n }\n }\n if (!cand_bottom_left) {\n if (cand_left) {\n EXTEND(left + size, left[size - 1], size);\n } else if (cand_up_left) {\n EXTEND(left, left[-1], 2 * size);\n cand_left = 1;\n } else if (cand_up) {\n left[-1] = top[0];\n EXTEND(left, left[-1], 2 * size);\n cand_up_left = 1;\n cand_left = 1;\n } else if (cand_up_right) {\n EXTEND(top, top[size], size);\n left[-1] = top[size];\n EXTEND(left, left[-1], 2 * size);\n cand_up = 1;\n cand_up_left = 1;\n cand_left = 1;\n } else {\n left[-1] = (1 << (BIT_DEPTH - 1));\n EXTEND(top, left[-1], 2 * size);\n EXTEND(left, left[-1], 2 * size);\n }\n }\n if (!cand_left)\n EXTEND(left, left[size], size);\n if (!cand_up_left) {\n left[-1] = left[0];\n }\n if (!cand_up)\n EXTEND(top, left[-1], size);\n if (!cand_up_right)\n EXTEND(top + size, top[size - 1], size);\n top[-1] = left[-1];\n if (c_idx == 0 && mode != INTRA_DC && size != 4) {\n int intra_hor_ver_dist_thresh[] = { 7, 1, 0 };\n int min_dist_vert_hor = FFMIN(FFABS((int)mode - 26),\n FFABS((int)mode - 10));\n if (min_dist_vert_hor > intra_hor_ver_dist_thresh[log2_size - 3]) {\n int threshold = 1 << (BIT_DEPTH - 5);\n if (s->ps.sps->sps_strong_intra_smoothing_enable_flag &&\n log2_size == 5 &&\n FFABS(top[-1] + top[63] - 2 * top[31]) < threshold &&\n FFABS(left[-1] + left[63] - 2 * left[31]) < threshold) {\n filtered_top[-1] = top[-1];\n filtered_top[63] = top[63];\n for (i = 0; i < 63; i++)\n filtered_top[i] = ((64 - (i + 1)) * top[-1] +\n (i + 1) * top[63] + 32) >> 6;\n for (i = 0; i < 63; i++)\n left[i] = ((64 - (i + 1)) * left[-1] +\n (i + 1) * left[63] + 32) >> 6;\n top = filtered_top;\n } else {\n filtered_left[2 * size - 1] = left[2 * size - 1];\n filtered_top[2 * size - 1] = top[2 * size - 1];\n for (i = 2 * size - 2; i >= 0; i--)\n filtered_left[i] = (left[i + 1] + 2 * left[i] +\n left[i - 1] + 2) >> 2;\n filtered_top[-1] =\n filtered_left[-1] = (left[0] + 2 * left[-1] + top[0] + 2) >> 2;\n for (i = 2 * size - 2; i >= 0; i--)\n filtered_top[i] = (top[i + 1] + 2 * top[i] +\n top[i - 1] + 2) >> 2;\n left = filtered_left;\n top = filtered_top;\n }\n }\n }\n switch (mode) {\n case INTRA_PLANAR:\n s->hpc.pred_planar[log2_size - 2]((uint8_t *)src, (uint8_t *)top,\n (uint8_t *)left, stride);\n break;\n case INTRA_DC:\n s->hpc.pred_dc((uint8_t *)src, (uint8_t *)top,\n (uint8_t *)left, stride, log2_size, c_idx);\n break;\n default:\n s->hpc.pred_angular[log2_size - 2]((uint8_t *)src, (uint8_t *)top,\n (uint8_t *)left, stride, c_idx,\n mode);\n break;\n }\n}'] |
26,920 | 0 | https://github.com/libav/libav/blob/b888abe1be9f0b3c75273c28e9a7b58fe47d5ec4/libavcodec/pcm.c/#L126 | static av_cold int pcm_encode_init(AVCodecContext *avctx)
{
avctx->frame_size = 1;
if (avctx->codec->id==CODEC_ID_PCM_F32BE && avctx->sample_fmt!=SAMPLE_FMT_FLT) {
return -1;
}
switch(avctx->codec->id) {
case CODEC_ID_PCM_ALAW:
build_xlaw_table(linear_to_alaw, alaw2linear, 0xd5);
break;
case CODEC_ID_PCM_MULAW:
build_xlaw_table(linear_to_ulaw, ulaw2linear, 0xff);
break;
default:
break;
}
avctx->block_align = avctx->channels * av_get_bits_per_sample(avctx->codec->id)/8;
avctx->coded_frame= avcodec_alloc_frame();
avctx->coded_frame->key_frame= 1;
return 0;
} | ['static av_cold int pcm_encode_init(AVCodecContext *avctx)\n{\n avctx->frame_size = 1;\n if (avctx->codec->id==CODEC_ID_PCM_F32BE && avctx->sample_fmt!=SAMPLE_FMT_FLT) {\n return -1;\n }\n switch(avctx->codec->id) {\n case CODEC_ID_PCM_ALAW:\n build_xlaw_table(linear_to_alaw, alaw2linear, 0xd5);\n break;\n case CODEC_ID_PCM_MULAW:\n build_xlaw_table(linear_to_ulaw, ulaw2linear, 0xff);\n break;\n default:\n break;\n }\n avctx->block_align = avctx->channels * av_get_bits_per_sample(avctx->codec->id)/8;\n avctx->coded_frame= avcodec_alloc_frame();\n avctx->coded_frame->key_frame= 1;\n return 0;\n}', 'int av_get_bits_per_sample(enum CodecID codec_id){\n switch(codec_id){\n case CODEC_ID_ADPCM_SBPRO_2:\n return 2;\n case CODEC_ID_ADPCM_SBPRO_3:\n return 3;\n case CODEC_ID_ADPCM_SBPRO_4:\n case CODEC_ID_ADPCM_CT:\n return 4;\n case CODEC_ID_PCM_ALAW:\n case CODEC_ID_PCM_MULAW:\n case CODEC_ID_PCM_S8:\n case CODEC_ID_PCM_U8:\n case CODEC_ID_PCM_ZORK:\n return 8;\n case CODEC_ID_PCM_S16BE:\n case CODEC_ID_PCM_S16LE:\n case CODEC_ID_PCM_S16LE_PLANAR:\n case CODEC_ID_PCM_U16BE:\n case CODEC_ID_PCM_U16LE:\n return 16;\n case CODEC_ID_PCM_S24DAUD:\n case CODEC_ID_PCM_S24BE:\n case CODEC_ID_PCM_S24LE:\n case CODEC_ID_PCM_U24BE:\n case CODEC_ID_PCM_U24LE:\n return 24;\n case CODEC_ID_PCM_S32BE:\n case CODEC_ID_PCM_S32LE:\n case CODEC_ID_PCM_U32BE:\n case CODEC_ID_PCM_U32LE:\n case CODEC_ID_PCM_F32BE:\n return 32;\n default:\n return 0;\n }\n}', 'AVFrame *avcodec_alloc_frame(void){\n AVFrame *pic= av_malloc(sizeof(AVFrame));\n if(pic==NULL) return NULL;\n avcodec_get_frame_defaults(pic);\n return pic;\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}'] |
26,921 | 0 | https://github.com/openssl/openssl/blob/2d5d70b15559f9813054ddb11b30b816daf62ebe/crypto/asn1/t_x509.c/#L445 | int ASN1_GENERALIZEDTIME_print(BIO *bp, const ASN1_GENERALIZEDTIME *tm)
{
char *v;
int gmt = 0;
int i;
int y = 0, M = 0, d = 0, h = 0, m = 0, s = 0;
char *f = NULL;
int f_len = 0;
i = tm->length;
v = (char *)tm->data;
if (i < 12)
goto err;
if (v[i - 1] == 'Z')
gmt = 1;
for (i = 0; i < 12; i++)
if ((v[i] > '9') || (v[i] < '0'))
goto err;
y = (v[0] - '0') * 1000 + (v[1] - '0') * 100
+ (v[2] - '0') * 10 + (v[3] - '0');
M = (v[4] - '0') * 10 + (v[5] - '0');
if ((M > 12) || (M < 1))
goto err;
d = (v[6] - '0') * 10 + (v[7] - '0');
h = (v[8] - '0') * 10 + (v[9] - '0');
m = (v[10] - '0') * 10 + (v[11] - '0');
if (tm->length >= 14 &&
(v[12] >= '0') && (v[12] <= '9') &&
(v[13] >= '0') && (v[13] <= '9')) {
s = (v[12] - '0') * 10 + (v[13] - '0');
if (tm->length >= 15 && v[14] == '.') {
int l = tm->length;
f = &v[14];
f_len = 1;
while (14 + f_len < l && f[f_len] >= '0' && f[f_len] <= '9')
++f_len;
}
}
if (BIO_printf(bp, "%s %2d %02d:%02d:%02d%.*s %d%s",
mon[M - 1], d, h, m, s, f_len, f, y,
(gmt) ? " GMT" : "") <= 0)
return (0);
else
return (1);
err:
BIO_write(bp, "Bad time value", 14);
return (0);
} | ['int x509_main(int argc, char **argv)\n{\n ASN1_INTEGER *sno = NULL;\n ASN1_OBJECT *objtmp;\n BIO *out = NULL;\n CONF *extconf = NULL;\n EVP_PKEY *Upkey = NULL, *CApkey = NULL, *fkey = NULL;\n STACK_OF(ASN1_OBJECT) *trust = NULL, *reject = NULL;\n STACK_OF(OPENSSL_STRING) *sigopts = NULL;\n X509 *x = NULL, *xca = NULL;\n X509_REQ *req = NULL, *rq = NULL;\n X509_STORE *ctx = NULL;\n const EVP_MD *digest = NULL;\n char *CAkeyfile = NULL, *CAserial = NULL, *fkeyfile = NULL, *alias = NULL;\n char *checkhost = NULL, *checkemail = NULL, *checkip = NULL;\n char *extsect = NULL, *extfile = NULL, *passin = NULL, *passinarg = NULL;\n char *infile = NULL, *outfile = NULL, *keyfile = NULL, *CAfile = NULL;\n char buf[256], *prog;\n int x509req = 0, days = DEF_DAYS, modulus = 0, pubkey = 0, pprint = 0;\n int C = 0, CAformat = FORMAT_PEM, CAkeyformat = FORMAT_PEM;\n int fingerprint = 0, reqfile = 0, need_rand = 0, checkend = 0;\n int informat = FORMAT_PEM, outformat = FORMAT_PEM, keyformat = FORMAT_PEM;\n int next_serial = 0, subject_hash = 0, issuer_hash = 0, ocspid = 0;\n int noout = 0, sign_flag = 0, CA_flag = 0, CA_createserial = 0, email = 0;\n int ocsp_uri = 0, trustout = 0, clrtrust = 0, clrreject = 0, aliasout = 0;\n int ret = 1, i, num = 0, badsig = 0, clrext = 0, nocert = 0;\n int text = 0, serial = 0, subject = 0, issuer = 0, startdate = 0;\n int checkoffset = 0, enddate = 0;\n unsigned long nmflag = 0, certflag = 0;\n char nmflag_set = 0;\n OPTION_CHOICE o;\n ENGINE *e = NULL;\n#ifndef OPENSSL_NO_MD5\n int subject_hash_old = 0, issuer_hash_old = 0;\n#endif\n ctx = X509_STORE_new();\n if (ctx == NULL)\n goto end;\n X509_STORE_set_verify_cb(ctx, callb);\n prog = opt_init(argc, argv, x509_options);\n while ((o = opt_next()) != OPT_EOF) {\n switch (o) {\n case OPT_EOF:\n case OPT_ERR:\n opthelp:\n BIO_printf(bio_err, "%s: Use -help for summary.\\n", prog);\n goto end;\n case OPT_HELP:\n opt_help(x509_options);\n ret = 0;\n goto end;\n case OPT_INFORM:\n if (!opt_format(opt_arg(), OPT_FMT_ANY, &informat))\n goto opthelp;\n break;\n case OPT_IN:\n infile = opt_arg();\n break;\n case OPT_OUTFORM:\n if (!opt_format(opt_arg(), OPT_FMT_ANY, &outformat))\n goto opthelp;\n break;\n case OPT_KEYFORM:\n if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &keyformat))\n goto opthelp;\n break;\n case OPT_CAFORM:\n if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &CAformat))\n goto opthelp;\n break;\n case OPT_CAKEYFORM:\n if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &CAkeyformat))\n goto opthelp;\n break;\n case OPT_OUT:\n outfile = opt_arg();\n break;\n case OPT_REQ:\n reqfile = need_rand = 1;\n break;\n case OPT_SIGOPT:\n if (!sigopts)\n sigopts = sk_OPENSSL_STRING_new_null();\n if (!sigopts || !sk_OPENSSL_STRING_push(sigopts, opt_arg()))\n goto opthelp;\n break;\n case OPT_FORCE_VERSION:\n#ifdef OPENSSL_SSL_DEBUG_BROKEN_PROTOCOL\n force_version = atoi(opt_arg()) - 1;\n#endif\n break;\n case OPT_DAYS:\n days = atoi(opt_arg());\n break;\n case OPT_PASSIN:\n passinarg = opt_arg();\n break;\n case OPT_EXTFILE:\n extfile = opt_arg();\n break;\n case OPT_EXTENSIONS:\n extsect = opt_arg();\n break;\n case OPT_SIGNKEY:\n keyfile = opt_arg();\n sign_flag = ++num;\n need_rand = 1;\n break;\n case OPT_CA:\n CAfile = opt_arg();\n CA_flag = ++num;\n need_rand = 1;\n break;\n case OPT_CAKEY:\n CAkeyfile = opt_arg();\n break;\n case OPT_CASERIAL:\n CAserial = opt_arg();\n break;\n case OPT_SET_SERIAL:\n if ((sno = s2i_ASN1_INTEGER(NULL, opt_arg())) == NULL)\n goto opthelp;\n break;\n case OPT_FORCE_PUBKEY:\n fkeyfile = opt_arg();\n break;\n case OPT_ADDTRUST:\n if ((objtmp = OBJ_txt2obj(opt_arg(), 0)) == NULL) {\n BIO_printf(bio_err,\n "%s: Invalid trust object value %s\\n",\n prog, opt_arg());\n goto opthelp;\n }\n if (trust == NULL && (trust = sk_ASN1_OBJECT_new_null()) == NULL)\n goto end;\n sk_ASN1_OBJECT_push(trust, objtmp);\n trustout = 1;\n break;\n case OPT_ADDREJECT:\n if ((objtmp = OBJ_txt2obj(opt_arg(), 0)) == NULL) {\n BIO_printf(bio_err,\n "%s: Invalid reject object value %s\\n",\n prog, opt_arg());\n goto opthelp;\n }\n if (reject == NULL\n && (reject = sk_ASN1_OBJECT_new_null()) == NULL)\n goto end;\n sk_ASN1_OBJECT_push(reject, objtmp);\n trustout = 1;\n break;\n case OPT_SETALIAS:\n alias = opt_arg();\n trustout = 1;\n break;\n case OPT_CERTOPT:\n if (!set_cert_ex(&certflag, opt_arg()))\n goto opthelp;\n break;\n case OPT_NAMEOPT:\n nmflag_set = 1;\n if (!set_name_ex(&nmflag, opt_arg()))\n goto opthelp;\n break;\n case OPT_ENGINE:\n e = setup_engine(opt_arg(), 0);\n break;\n case OPT_C:\n C = ++num;\n break;\n case OPT_EMAIL:\n email = ++num;\n break;\n case OPT_OCSP_URI:\n ocsp_uri = ++num;\n break;\n case OPT_SERIAL:\n serial = ++num;\n break;\n case OPT_NEXT_SERIAL:\n next_serial = ++num;\n break;\n case OPT_MODULUS:\n modulus = ++num;\n break;\n case OPT_PUBKEY:\n pubkey = ++num;\n break;\n case OPT_X509TOREQ:\n x509req = ++num;\n break;\n case OPT_TEXT:\n text = ++num;\n break;\n case OPT_SUBJECT:\n subject = ++num;\n break;\n case OPT_ISSUER:\n issuer = ++num;\n break;\n case OPT_FINGERPRINT:\n fingerprint = ++num;\n break;\n case OPT_HASH:\n subject_hash = ++num;\n break;\n case OPT_ISSUER_HASH:\n issuer_hash = ++num;\n break;\n case OPT_PURPOSE:\n pprint = ++num;\n break;\n case OPT_STARTDATE:\n startdate = ++num;\n break;\n case OPT_ENDDATE:\n enddate = ++num;\n break;\n case OPT_NOOUT:\n noout = ++num;\n break;\n case OPT_NOCERT:\n nocert = 1;\n break;\n case OPT_TRUSTOUT:\n trustout = 1;\n break;\n case OPT_CLRTRUST:\n clrtrust = ++num;\n break;\n case OPT_CLRREJECT:\n clrreject = ++num;\n break;\n case OPT_ALIAS:\n aliasout = ++num;\n break;\n case OPT_CACREATESERIAL:\n CA_createserial = ++num;\n break;\n case OPT_CLREXT:\n clrext = 1;\n break;\n case OPT_OCSPID:\n ocspid = ++num;\n break;\n case OPT_BADSIG:\n badsig = 1;\n break;\n#ifndef OPENSSL_NO_MD5\n case OPT_SUBJECT_HASH_OLD:\n subject_hash_old = ++num;\n break;\n case OPT_ISSUER_HASH_OLD:\n issuer_hash_old = ++num;\n break;\n#else\n case OPT_SUBJECT_HASH_OLD:\n case OPT_ISSUER_HASH_OLD:\n break;\n#endif\n case OPT_DATES:\n startdate = ++num;\n enddate = ++num;\n break;\n case OPT_CHECKEND:\n checkoffset = atoi(opt_arg());\n checkend = 1;\n break;\n case OPT_CHECKHOST:\n checkhost = opt_arg();\n break;\n case OPT_CHECKEMAIL:\n checkemail = opt_arg();\n break;\n case OPT_CHECKIP:\n checkip = opt_arg();\n break;\n case OPT_MD:\n if (!opt_md(opt_unknown(), &digest))\n goto opthelp;\n }\n }\n argc = opt_num_rest();\n argv = opt_rest();\n if (argc != 0) {\n BIO_printf(bio_err, "%s: Unknown parameter %s\\n", prog, argv[0]);\n goto opthelp;\n }\n if (!nmflag_set)\n nmflag = XN_FLAG_ONELINE;\n if (!app_load_modules(NULL))\n goto end;\n out = bio_open_default(outfile, "w");\n if (out == NULL)\n goto end;\n if (need_rand)\n app_RAND_load_file(NULL, 0);\n if (!app_passwd(passinarg, NULL, &passin, NULL)) {\n BIO_printf(bio_err, "Error getting password\\n");\n goto end;\n }\n if (!X509_STORE_set_default_paths(ctx)) {\n ERR_print_errors(bio_err);\n goto end;\n }\n if (fkeyfile) {\n fkey = load_pubkey(fkeyfile, keyformat, 0, NULL, e, "Forced key");\n if (fkey == NULL)\n goto end;\n }\n if ((CAkeyfile == NULL) && (CA_flag) && (CAformat == FORMAT_PEM)) {\n CAkeyfile = CAfile;\n } else if ((CA_flag) && (CAkeyfile == NULL)) {\n BIO_printf(bio_err,\n "need to specify a CAkey if using the CA command\\n");\n goto end;\n }\n if (extfile) {\n X509V3_CTX ctx2;\n if ((extconf = app_load_config(extfile)) == NULL)\n goto end;\n if (!extsect) {\n extsect = NCONF_get_string(extconf, "default", "extensions");\n if (!extsect) {\n ERR_clear_error();\n extsect = "default";\n }\n }\n X509V3_set_ctx_test(&ctx2);\n X509V3_set_nconf(&ctx2, extconf);\n if (!X509V3_EXT_add_nconf(extconf, &ctx2, extsect, NULL)) {\n BIO_printf(bio_err,\n "Error Loading extension section %s\\n", extsect);\n ERR_print_errors(bio_err);\n goto end;\n }\n }\n if (reqfile) {\n EVP_PKEY *pkey;\n BIO *in;\n if (!sign_flag && !CA_flag) {\n BIO_printf(bio_err, "We need a private key to sign with\\n");\n goto end;\n }\n in = bio_open_default(infile, "r");\n if (in == NULL)\n goto end;\n req = PEM_read_bio_X509_REQ(in, NULL, NULL, NULL);\n BIO_free(in);\n if (req == NULL) {\n ERR_print_errors(bio_err);\n goto end;\n }\n if ((req->req_info == NULL) ||\n (req->req_info->pubkey == NULL) ||\n (req->req_info->pubkey->public_key == NULL) ||\n (req->req_info->pubkey->public_key->data == NULL)) {\n BIO_printf(bio_err,\n "The certificate request appears to corrupted\\n");\n BIO_printf(bio_err, "It does not contain a public key\\n");\n goto end;\n }\n if ((pkey = X509_REQ_get_pubkey(req)) == NULL) {\n BIO_printf(bio_err, "error unpacking public key\\n");\n goto end;\n }\n i = X509_REQ_verify(req, pkey);\n EVP_PKEY_free(pkey);\n if (i < 0) {\n BIO_printf(bio_err, "Signature verification error\\n");\n ERR_print_errors(bio_err);\n goto end;\n }\n if (i == 0) {\n BIO_printf(bio_err,\n "Signature did not match the certificate request\\n");\n goto end;\n } else\n BIO_printf(bio_err, "Signature ok\\n");\n print_name(bio_err, "subject=", X509_REQ_get_subject_name(req),\n nmflag);\n if ((x = X509_new()) == NULL)\n goto end;\n if (sno == NULL) {\n sno = ASN1_INTEGER_new();\n if (!sno || !rand_serial(NULL, sno))\n goto end;\n if (!X509_set_serialNumber(x, sno))\n goto end;\n ASN1_INTEGER_free(sno);\n sno = NULL;\n } else if (!X509_set_serialNumber(x, sno))\n goto end;\n if (!X509_set_issuer_name(x, req->req_info->subject))\n goto end;\n if (!X509_set_subject_name(x, req->req_info->subject))\n goto end;\n X509_gmtime_adj(X509_get_notBefore(x), 0);\n X509_time_adj_ex(X509_get_notAfter(x), days, 0, NULL);\n if (fkey)\n X509_set_pubkey(x, fkey);\n else {\n pkey = X509_REQ_get_pubkey(req);\n X509_set_pubkey(x, pkey);\n EVP_PKEY_free(pkey);\n }\n } else\n x = load_cert(infile, informat, NULL, e, "Certificate");\n if (x == NULL)\n goto end;\n if (CA_flag) {\n xca = load_cert(CAfile, CAformat, NULL, e, "CA Certificate");\n if (xca == NULL)\n goto end;\n }\n if (!noout || text || next_serial) {\n OBJ_create("2.99999.3", "SET.ex3", "SET x509v3 extension 3");\n }\n if (alias)\n X509_alias_set1(x, (unsigned char *)alias, -1);\n if (clrtrust)\n X509_trust_clear(x);\n if (clrreject)\n X509_reject_clear(x);\n if (trust) {\n for (i = 0; i < sk_ASN1_OBJECT_num(trust); i++) {\n objtmp = sk_ASN1_OBJECT_value(trust, i);\n X509_add1_trust_object(x, objtmp);\n }\n }\n if (reject) {\n for (i = 0; i < sk_ASN1_OBJECT_num(reject); i++) {\n objtmp = sk_ASN1_OBJECT_value(reject, i);\n X509_add1_reject_object(x, objtmp);\n }\n }\n if (num) {\n for (i = 1; i <= num; i++) {\n if (issuer == i) {\n print_name(out, "issuer= ", X509_get_issuer_name(x), nmflag);\n } else if (subject == i) {\n print_name(out, "subject= ",\n X509_get_subject_name(x), nmflag);\n } else if (serial == i) {\n BIO_printf(out, "serial=");\n i2a_ASN1_INTEGER(out, X509_get_serialNumber(x));\n BIO_printf(out, "\\n");\n } else if (next_serial == i) {\n BIGNUM *bnser;\n ASN1_INTEGER *ser;\n ser = X509_get_serialNumber(x);\n bnser = ASN1_INTEGER_to_BN(ser, NULL);\n if (!bnser)\n goto end;\n if (!BN_add_word(bnser, 1))\n goto end;\n ser = BN_to_ASN1_INTEGER(bnser, NULL);\n if (!ser)\n goto end;\n BN_free(bnser);\n i2a_ASN1_INTEGER(out, ser);\n ASN1_INTEGER_free(ser);\n BIO_puts(out, "\\n");\n } else if ((email == i) || (ocsp_uri == i)) {\n int j;\n STACK_OF(OPENSSL_STRING) *emlst;\n if (email == i)\n emlst = X509_get1_email(x);\n else\n emlst = X509_get1_ocsp(x);\n for (j = 0; j < sk_OPENSSL_STRING_num(emlst); j++)\n BIO_printf(out, "%s\\n",\n sk_OPENSSL_STRING_value(emlst, j));\n X509_email_free(emlst);\n } else if (aliasout == i) {\n unsigned char *alstr;\n alstr = X509_alias_get0(x, NULL);\n if (alstr)\n BIO_printf(out, "%s\\n", alstr);\n else\n BIO_puts(out, "<No Alias>\\n");\n } else if (subject_hash == i) {\n BIO_printf(out, "%08lx\\n", X509_subject_name_hash(x));\n }\n#ifndef OPENSSL_NO_MD5\n else if (subject_hash_old == i) {\n BIO_printf(out, "%08lx\\n", X509_subject_name_hash_old(x));\n }\n#endif\n else if (issuer_hash == i) {\n BIO_printf(out, "%08lx\\n", X509_issuer_name_hash(x));\n }\n#ifndef OPENSSL_NO_MD5\n else if (issuer_hash_old == i) {\n BIO_printf(out, "%08lx\\n", X509_issuer_name_hash_old(x));\n }\n#endif\n else if (pprint == i) {\n X509_PURPOSE *ptmp;\n int j;\n BIO_printf(out, "Certificate purposes:\\n");\n for (j = 0; j < X509_PURPOSE_get_count(); j++) {\n ptmp = X509_PURPOSE_get0(j);\n purpose_print(out, x, ptmp);\n }\n } else if (modulus == i) {\n EVP_PKEY *pkey;\n pkey = X509_get_pubkey(x);\n if (pkey == NULL) {\n BIO_printf(bio_err, "Modulus=unavailable\\n");\n ERR_print_errors(bio_err);\n goto end;\n }\n BIO_printf(out, "Modulus=");\n#ifndef OPENSSL_NO_RSA\n if (pkey->type == EVP_PKEY_RSA)\n BN_print(out, pkey->pkey.rsa->n);\n else\n#endif\n#ifndef OPENSSL_NO_DSA\n if (pkey->type == EVP_PKEY_DSA)\n BN_print(out, pkey->pkey.dsa->pub_key);\n else\n#endif\n BIO_printf(out, "Wrong Algorithm type");\n BIO_printf(out, "\\n");\n EVP_PKEY_free(pkey);\n } else if (pubkey == i) {\n EVP_PKEY *pkey;\n pkey = X509_get_pubkey(x);\n if (pkey == NULL) {\n BIO_printf(bio_err, "Error getting public key\\n");\n ERR_print_errors(bio_err);\n goto end;\n }\n PEM_write_bio_PUBKEY(out, pkey);\n EVP_PKEY_free(pkey);\n } else if (C == i) {\n unsigned char *d;\n char *m;\n int len;\n X509_NAME_oneline(X509_get_subject_name(x), buf, sizeof buf);\n BIO_printf(out, "/*\\n"\n " * Subject: %s\\n", buf);\n m = X509_NAME_oneline(X509_get_issuer_name(x), buf, sizeof buf);\n BIO_printf(out, " * Issuer: %s\\n"\n " */\\n", buf);\n len = i2d_X509(x, NULL);\n m = app_malloc(len, "x509 name buffer");\n d = (unsigned char *)m;\n len = i2d_X509_NAME(X509_get_subject_name(x), &d);\n print_array(out, "the_subject_name", len, (unsigned char *)m);\n d = (unsigned char *)m;\n len = i2d_X509_PUBKEY(X509_get_X509_PUBKEY(x), &d);\n print_array(out, "the_public_key", len, (unsigned char *)m);\n d = (unsigned char *)m;\n len = i2d_X509(x, &d);\n print_array(out, "the_certificate", len, (unsigned char *)m);\n OPENSSL_free(m);\n } else if (text == i) {\n X509_print_ex(out, x, nmflag, certflag);\n } else if (startdate == i) {\n BIO_puts(out, "notBefore=");\n ASN1_TIME_print(out, X509_get_notBefore(x));\n BIO_puts(out, "\\n");\n } else if (enddate == i) {\n BIO_puts(out, "notAfter=");\n ASN1_TIME_print(out, X509_get_notAfter(x));\n BIO_puts(out, "\\n");\n } else if (fingerprint == i) {\n int j;\n unsigned int n;\n unsigned char md[EVP_MAX_MD_SIZE];\n const EVP_MD *fdig = digest;\n if (!fdig)\n fdig = EVP_sha1();\n if (!X509_digest(x, fdig, md, &n)) {\n BIO_printf(bio_err, "out of memory\\n");\n goto end;\n }\n BIO_printf(out, "%s Fingerprint=",\n OBJ_nid2sn(EVP_MD_type(fdig)));\n for (j = 0; j < (int)n; j++) {\n BIO_printf(out, "%02X%c", md[j], (j + 1 == (int)n)\n ? \'\\n\' : \':\');\n }\n }\n else if ((sign_flag == i) && (x509req == 0)) {\n BIO_printf(bio_err, "Getting Private key\\n");\n if (Upkey == NULL) {\n Upkey = load_key(keyfile, keyformat, 0,\n passin, e, "Private key");\n if (Upkey == NULL)\n goto end;\n }\n assert(need_rand);\n if (!sign(x, Upkey, days, clrext, digest, extconf, extsect))\n goto end;\n } else if (CA_flag == i) {\n BIO_printf(bio_err, "Getting CA Private Key\\n");\n if (CAkeyfile != NULL) {\n CApkey = load_key(CAkeyfile, CAkeyformat,\n 0, passin, e, "CA Private Key");\n if (CApkey == NULL)\n goto end;\n }\n assert(need_rand);\n if (!x509_certify(ctx, CAfile, digest, x, xca,\n CApkey, sigopts,\n CAserial, CA_createserial, days, clrext,\n extconf, extsect, sno, reqfile))\n goto end;\n } else if (x509req == i) {\n EVP_PKEY *pk;\n BIO_printf(bio_err, "Getting request Private Key\\n");\n if (keyfile == NULL) {\n BIO_printf(bio_err, "no request key file specified\\n");\n goto end;\n } else {\n pk = load_key(keyfile, keyformat, 0,\n passin, e, "request key");\n if (pk == NULL)\n goto end;\n }\n BIO_printf(bio_err, "Generating certificate request\\n");\n rq = X509_to_X509_REQ(x, pk, digest);\n EVP_PKEY_free(pk);\n if (rq == NULL) {\n ERR_print_errors(bio_err);\n goto end;\n }\n if (!noout) {\n X509_REQ_print(out, rq);\n PEM_write_bio_X509_REQ(out, rq);\n }\n noout = 1;\n } else if (ocspid == i) {\n X509_ocspid_print(out, x);\n }\n }\n }\n if (checkend) {\n time_t tcheck = time(NULL) + checkoffset;\n if (X509_cmp_time(X509_get_notAfter(x), &tcheck) < 0) {\n BIO_printf(out, "Certificate will expire\\n");\n ret = 1;\n } else {\n BIO_printf(out, "Certificate will not expire\\n");\n ret = 0;\n }\n goto end;\n }\n print_cert_checks(out, x, checkhost, checkemail, checkip);\n if (noout || nocert) {\n ret = 0;\n goto end;\n }\n if (badsig)\n x->signature->data[x->signature->length - 1] ^= 0x1;\n if (outformat == FORMAT_ASN1)\n i = i2d_X509_bio(out, x);\n else if (outformat == FORMAT_PEM) {\n if (trustout)\n i = PEM_write_bio_X509_AUX(out, x);\n else\n i = PEM_write_bio_X509(out, x);\n } else {\n BIO_printf(bio_err, "bad output format specified for outfile\\n");\n goto end;\n }\n if (!i) {\n BIO_printf(bio_err, "unable to write certificate\\n");\n ERR_print_errors(bio_err);\n goto end;\n }\n ret = 0;\n end:\n if (need_rand)\n app_RAND_write_file(NULL);\n OBJ_cleanup();\n NCONF_free(extconf);\n BIO_free_all(out);\n X509_STORE_free(ctx);\n X509_REQ_free(req);\n X509_free(x);\n X509_free(xca);\n EVP_PKEY_free(Upkey);\n EVP_PKEY_free(CApkey);\n EVP_PKEY_free(fkey);\n sk_OPENSSL_STRING_free(sigopts);\n X509_REQ_free(rq);\n ASN1_INTEGER_free(sno);\n sk_ASN1_OBJECT_pop_free(trust, ASN1_OBJECT_free);\n sk_ASN1_OBJECT_pop_free(reject, ASN1_OBJECT_free);\n OPENSSL_free(passin);\n return (ret);\n}', 'int X509_set_pubkey(X509 *x, EVP_PKEY *pkey)\n{\n if ((x == NULL) || (x->cert_info == NULL))\n return (0);\n return (X509_PUBKEY_set(&(x->cert_info->key), pkey));\n}', 'int X509_print_ex(BIO *bp, X509 *x, unsigned long nmflags,\n unsigned long cflag)\n{\n long l;\n int ret = 0, i;\n char *m = NULL, mlch = \' \';\n int nmindent = 0;\n X509_CINF *ci;\n ASN1_INTEGER *bs;\n EVP_PKEY *pkey = NULL;\n const char *neg;\n if ((nmflags & XN_FLAG_SEP_MASK) == XN_FLAG_SEP_MULTILINE) {\n mlch = \'\\n\';\n nmindent = 12;\n }\n if (nmflags == X509_FLAG_COMPAT)\n nmindent = 16;\n ci = x->cert_info;\n if (!(cflag & X509_FLAG_NO_HEADER)) {\n if (BIO_write(bp, "Certificate:\\n", 13) <= 0)\n goto err;\n if (BIO_write(bp, " Data:\\n", 10) <= 0)\n goto err;\n }\n if (!(cflag & X509_FLAG_NO_VERSION)) {\n l = X509_get_version(x);\n if (BIO_printf(bp, "%8sVersion: %lu (0x%lx)\\n", "", l + 1, l) <= 0)\n goto err;\n }\n if (!(cflag & X509_FLAG_NO_SERIAL)) {\n if (BIO_write(bp, " Serial Number:", 22) <= 0)\n goto err;\n bs = X509_get_serialNumber(x);\n if (bs->length <= (int)sizeof(long)) {\n ERR_set_mark();\n l = ASN1_INTEGER_get(bs);\n ERR_pop_to_mark();\n } else {\n l = -1;\n }\n if (l != -1) {\n if (bs->type == V_ASN1_NEG_INTEGER) {\n l = -l;\n neg = "-";\n } else\n neg = "";\n if (BIO_printf(bp, " %s%lu (%s0x%lx)\\n", neg, l, neg, l) <= 0)\n goto err;\n } else {\n neg = (bs->type == V_ASN1_NEG_INTEGER) ? " (Negative)" : "";\n if (BIO_printf(bp, "\\n%12s%s", "", neg) <= 0)\n goto err;\n for (i = 0; i < bs->length; i++) {\n if (BIO_printf(bp, "%02x%c", bs->data[i],\n ((i + 1 == bs->length) ? \'\\n\' : \':\')) <= 0)\n goto err;\n }\n }\n }\n if (!(cflag & X509_FLAG_NO_SIGNAME)) {\n if (X509_signature_print(bp, ci->signature, NULL) <= 0)\n goto err;\n }\n if (!(cflag & X509_FLAG_NO_ISSUER)) {\n if (BIO_printf(bp, " Issuer:%c", mlch) <= 0)\n goto err;\n if (X509_NAME_print_ex(bp, X509_get_issuer_name(x), nmindent, nmflags)\n < 0)\n goto err;\n if (BIO_write(bp, "\\n", 1) <= 0)\n goto err;\n }\n if (!(cflag & X509_FLAG_NO_VALIDITY)) {\n if (BIO_write(bp, " Validity\\n", 17) <= 0)\n goto err;\n if (BIO_write(bp, " Not Before: ", 24) <= 0)\n goto err;\n if (!ASN1_TIME_print(bp, X509_get_notBefore(x)))\n goto err;\n if (BIO_write(bp, "\\n Not After : ", 25) <= 0)\n goto err;\n if (!ASN1_TIME_print(bp, X509_get_notAfter(x)))\n goto err;\n if (BIO_write(bp, "\\n", 1) <= 0)\n goto err;\n }\n if (!(cflag & X509_FLAG_NO_SUBJECT)) {\n if (BIO_printf(bp, " Subject:%c", mlch) <= 0)\n goto err;\n if (X509_NAME_print_ex\n (bp, X509_get_subject_name(x), nmindent, nmflags) < 0)\n goto err;\n if (BIO_write(bp, "\\n", 1) <= 0)\n goto err;\n }\n if (!(cflag & X509_FLAG_NO_PUBKEY)) {\n if (BIO_write(bp, " Subject Public Key Info:\\n", 33) <= 0)\n goto err;\n if (BIO_printf(bp, "%12sPublic Key Algorithm: ", "") <= 0)\n goto err;\n if (i2a_ASN1_OBJECT(bp, ci->key->algor->algorithm) <= 0)\n goto err;\n if (BIO_puts(bp, "\\n") <= 0)\n goto err;\n pkey = X509_get_pubkey(x);\n if (pkey == NULL) {\n BIO_printf(bp, "%12sUnable to load Public Key\\n", "");\n ERR_print_errors(bp);\n } else {\n EVP_PKEY_print_public(bp, pkey, 16, NULL);\n EVP_PKEY_free(pkey);\n }\n }\n if (!(cflag & X509_FLAG_NO_IDS)) {\n if (ci->issuerUID) {\n if (BIO_printf(bp, "%8sIssuer Unique ID: ", "") <= 0)\n goto err;\n if (!X509_signature_dump(bp, ci->issuerUID, 12))\n goto err;\n }\n if (ci->subjectUID) {\n if (BIO_printf(bp, "%8sSubject Unique ID: ", "") <= 0)\n goto err;\n if (!X509_signature_dump(bp, ci->subjectUID, 12))\n goto err;\n }\n }\n if (!(cflag & X509_FLAG_NO_EXTENSIONS))\n X509V3_extensions_print(bp, "X509v3 extensions",\n ci->extensions, cflag, 8);\n if (!(cflag & X509_FLAG_NO_SIGDUMP)) {\n if (X509_signature_print(bp, x->sig_alg, x->signature) <= 0)\n goto err;\n }\n if (!(cflag & X509_FLAG_NO_AUX)) {\n if (!X509_CERT_AUX_print(bp, x->aux, 0))\n goto err;\n }\n ret = 1;\n err:\n OPENSSL_free(m);\n return (ret);\n}', 'int ASN1_TIME_print(BIO *bp, const ASN1_TIME *tm)\n{\n if (tm->type == V_ASN1_UTCTIME)\n return ASN1_UTCTIME_print(bp, tm);\n if (tm->type == V_ASN1_GENERALIZEDTIME)\n return ASN1_GENERALIZEDTIME_print(bp, tm);\n BIO_write(bp, "Bad time value", 14);\n return (0);\n}', 'int ASN1_GENERALIZEDTIME_print(BIO *bp, const ASN1_GENERALIZEDTIME *tm)\n{\n char *v;\n int gmt = 0;\n int i;\n int y = 0, M = 0, d = 0, h = 0, m = 0, s = 0;\n char *f = NULL;\n int f_len = 0;\n i = tm->length;\n v = (char *)tm->data;\n if (i < 12)\n goto err;\n if (v[i - 1] == \'Z\')\n gmt = 1;\n for (i = 0; i < 12; i++)\n if ((v[i] > \'9\') || (v[i] < \'0\'))\n goto err;\n y = (v[0] - \'0\') * 1000 + (v[1] - \'0\') * 100\n + (v[2] - \'0\') * 10 + (v[3] - \'0\');\n M = (v[4] - \'0\') * 10 + (v[5] - \'0\');\n if ((M > 12) || (M < 1))\n goto err;\n d = (v[6] - \'0\') * 10 + (v[7] - \'0\');\n h = (v[8] - \'0\') * 10 + (v[9] - \'0\');\n m = (v[10] - \'0\') * 10 + (v[11] - \'0\');\n if (tm->length >= 14 &&\n (v[12] >= \'0\') && (v[12] <= \'9\') &&\n (v[13] >= \'0\') && (v[13] <= \'9\')) {\n s = (v[12] - \'0\') * 10 + (v[13] - \'0\');\n if (tm->length >= 15 && v[14] == \'.\') {\n int l = tm->length;\n f = &v[14];\n f_len = 1;\n while (14 + f_len < l && f[f_len] >= \'0\' && f[f_len] <= \'9\')\n ++f_len;\n }\n }\n if (BIO_printf(bp, "%s %2d %02d:%02d:%02d%.*s %d%s",\n mon[M - 1], d, h, m, s, f_len, f, y,\n (gmt) ? " GMT" : "") <= 0)\n return (0);\n else\n return (1);\n err:\n BIO_write(bp, "Bad time value", 14);\n return (0);\n}'] |
26,922 | 0 | https://github.com/libav/libav/blob/e6c4ac7b5f038be56dfbb0171f5dd0cb850d9b28/libswscale/utils.c/#L182 | int sws_isSupportedInput(enum AVPixelFormat pix_fmt)
{
return (unsigned)pix_fmt < AV_PIX_FMT_NB ?
format_entries[pix_fmt].is_supported_in : 0;
} | ['int show_pix_fmts(void *optctx, const char *opt, const char *arg)\n{\n const AVPixFmtDescriptor *pix_desc = NULL;\n printf("Pixel formats:\\n"\n "I.... = Supported Input format for conversion\\n"\n ".O... = Supported Output format for conversion\\n"\n "..H.. = Hardware accelerated format\\n"\n "...P. = Paletted format\\n"\n "....B = Bitstream format\\n"\n "FLAGS NAME NB_COMPONENTS BITS_PER_PIXEL\\n"\n "-----\\n");\n#if !CONFIG_SWSCALE\n# define sws_isSupportedInput(x) 0\n# define sws_isSupportedOutput(x) 0\n#endif\n while ((pix_desc = av_pix_fmt_desc_next(pix_desc))) {\n enum AVPixelFormat pix_fmt = av_pix_fmt_desc_get_id(pix_desc);\n printf("%c%c%c%c%c %-16s %d %2d\\n",\n sws_isSupportedInput (pix_fmt) ? \'I\' : \'.\',\n sws_isSupportedOutput(pix_fmt) ? \'O\' : \'.\',\n pix_desc->flags & AV_PIX_FMT_FLAG_HWACCEL ? \'H\' : \'.\',\n pix_desc->flags & AV_PIX_FMT_FLAG_PAL ? \'P\' : \'.\',\n pix_desc->flags & AV_PIX_FMT_FLAG_BITSTREAM ? \'B\' : \'.\',\n pix_desc->name,\n pix_desc->nb_components,\n av_get_bits_per_pixel(pix_desc));\n }\n return 0;\n}', 'enum AVPixelFormat av_pix_fmt_desc_get_id(const AVPixFmtDescriptor *desc)\n{\n if (desc < av_pix_fmt_descriptors ||\n desc >= av_pix_fmt_descriptors + FF_ARRAY_ELEMS(av_pix_fmt_descriptors))\n return AV_PIX_FMT_NONE;\n return desc - av_pix_fmt_descriptors;\n}', 'int sws_isSupportedInput(enum AVPixelFormat pix_fmt)\n{\n return (unsigned)pix_fmt < AV_PIX_FMT_NB ?\n format_entries[pix_fmt].is_supported_in : 0;\n}'] |
26,923 | 0 | https://github.com/openssl/openssl/blob/fa9bb6201e1d16ba8ccab938833d140ef81a7f73/crypto/bio/b_addr.c/#L81 | BIO_ADDR *BIO_ADDR_new(void)
{
BIO_ADDR *ret = OPENSSL_zalloc(sizeof(*ret));
ret->sa.sa_family = AF_UNSPEC;
return ret;
} | ['BIO_ADDR *BIO_ADDR_new(void)\n{\n BIO_ADDR *ret = OPENSSL_zalloc(sizeof(*ret));\n ret->sa.sa_family = AF_UNSPEC;\n return ret;\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 (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}'] |
26,924 | 0 | https://github.com/openssl/openssl/blob/0f3ffbd1581fad58095fedcc32b0da42a486b8b7/test/evp_test.c/#L1559 | static int encode_test_run(EVP_TEST *t)
{
ENCODE_DATA *expected = t->data;
unsigned char *encode_out = NULL, *decode_out = NULL;
int output_len, chunk_len;
EVP_ENCODE_CTX *decode_ctx;
if (!TEST_ptr(decode_ctx = EVP_ENCODE_CTX_new())) {
t->err = "INTERNAL_ERROR";
goto err;
}
if (expected->encoding == BASE64_CANONICAL_ENCODING) {
EVP_ENCODE_CTX *encode_ctx;
if (!TEST_ptr(encode_ctx = EVP_ENCODE_CTX_new())
|| !TEST_ptr(encode_out =
OPENSSL_malloc(EVP_ENCODE_LENGTH(expected->input_len))))
goto err;
EVP_EncodeInit(encode_ctx);
EVP_EncodeUpdate(encode_ctx, encode_out, &chunk_len,
expected->input, expected->input_len);
output_len = chunk_len;
EVP_EncodeFinal(encode_ctx, encode_out + chunk_len, &chunk_len);
output_len += chunk_len;
EVP_ENCODE_CTX_free(encode_ctx);
if (!TEST_mem_eq(expected->output, expected->output_len,
encode_out, output_len)) {
t->err = "BAD_ENCODING";
goto err;
}
}
if (!TEST_ptr(decode_out =
OPENSSL_malloc(EVP_DECODE_LENGTH(expected->output_len))))
goto err;
EVP_DecodeInit(decode_ctx);
if (EVP_DecodeUpdate(decode_ctx, decode_out, &chunk_len, expected->output,
expected->output_len) < 0) {
t->err = "DECODE_ERROR";
goto err;
}
output_len = chunk_len;
if (EVP_DecodeFinal(decode_ctx, decode_out + chunk_len, &chunk_len) != 1) {
t->err = "DECODE_ERROR";
goto err;
}
output_len += chunk_len;
if (expected->encoding != BASE64_INVALID_ENCODING
&& !TEST_mem_eq(expected->input, expected->input_len,
decode_out, output_len)) {
t->err = "BAD_DECODING";
goto err;
}
t->err = NULL;
err:
OPENSSL_free(encode_out);
OPENSSL_free(decode_out);
EVP_ENCODE_CTX_free(decode_ctx);
return 1;
} | ['static int encode_test_run(EVP_TEST *t)\n{\n ENCODE_DATA *expected = t->data;\n unsigned char *encode_out = NULL, *decode_out = NULL;\n int output_len, chunk_len;\n EVP_ENCODE_CTX *decode_ctx;\n if (!TEST_ptr(decode_ctx = EVP_ENCODE_CTX_new())) {\n t->err = "INTERNAL_ERROR";\n goto err;\n }\n if (expected->encoding == BASE64_CANONICAL_ENCODING) {\n EVP_ENCODE_CTX *encode_ctx;\n if (!TEST_ptr(encode_ctx = EVP_ENCODE_CTX_new())\n || !TEST_ptr(encode_out =\n OPENSSL_malloc(EVP_ENCODE_LENGTH(expected->input_len))))\n goto err;\n EVP_EncodeInit(encode_ctx);\n EVP_EncodeUpdate(encode_ctx, encode_out, &chunk_len,\n expected->input, expected->input_len);\n output_len = chunk_len;\n EVP_EncodeFinal(encode_ctx, encode_out + chunk_len, &chunk_len);\n output_len += chunk_len;\n EVP_ENCODE_CTX_free(encode_ctx);\n if (!TEST_mem_eq(expected->output, expected->output_len,\n encode_out, output_len)) {\n t->err = "BAD_ENCODING";\n goto err;\n }\n }\n if (!TEST_ptr(decode_out =\n OPENSSL_malloc(EVP_DECODE_LENGTH(expected->output_len))))\n goto err;\n EVP_DecodeInit(decode_ctx);\n if (EVP_DecodeUpdate(decode_ctx, decode_out, &chunk_len, expected->output,\n expected->output_len) < 0) {\n t->err = "DECODE_ERROR";\n goto err;\n }\n output_len = chunk_len;\n if (EVP_DecodeFinal(decode_ctx, decode_out + chunk_len, &chunk_len) != 1) {\n t->err = "DECODE_ERROR";\n goto err;\n }\n output_len += chunk_len;\n if (expected->encoding != BASE64_INVALID_ENCODING\n && !TEST_mem_eq(expected->input, expected->input_len,\n decode_out, output_len)) {\n t->err = "BAD_DECODING";\n goto err;\n }\n t->err = NULL;\n err:\n OPENSSL_free(encode_out);\n OPENSSL_free(decode_out);\n EVP_ENCODE_CTX_free(decode_ctx);\n return 1;\n}', 'EVP_ENCODE_CTX *EVP_ENCODE_CTX_new(void)\n{\n return OPENSSL_zalloc(sizeof(EVP_ENCODE_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 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}'] |
26,925 | 0 | https://github.com/openssl/openssl/blob/183733f882056ea3e6fe95e665b85fcc6a45dcb4/crypto/x509v3/pcy_data.c/#L102 | X509_POLICY_DATA *policy_data_new(POLICYINFO *policy,
const ASN1_OBJECT *cid, int crit)
{
X509_POLICY_DATA *ret;
ASN1_OBJECT *id;
if (!policy && !cid)
return NULL;
if (cid) {
id = OBJ_dup(cid);
if (!id)
return NULL;
} else
id = NULL;
ret = OPENSSL_zalloc(sizeof(*ret));
if (ret == NULL)
return NULL;
ret->expected_policy_set = sk_ASN1_OBJECT_new_null();
if (ret->expected_policy_set == NULL) {
OPENSSL_free(ret);
ASN1_OBJECT_free(id);
return NULL;
}
if (crit)
ret->flags = POLICY_DATA_FLAG_CRITICAL;
if (id)
ret->valid_policy = id;
else {
ret->valid_policy = policy->policyid;
policy->policyid = NULL;
}
if (policy) {
ret->qualifier_set = policy->qualifiers;
policy->qualifiers = NULL;
}
return ret;
} | ['X509_POLICY_DATA *policy_data_new(POLICYINFO *policy,\n const ASN1_OBJECT *cid, int crit)\n{\n X509_POLICY_DATA *ret;\n ASN1_OBJECT *id;\n if (!policy && !cid)\n return NULL;\n if (cid) {\n id = OBJ_dup(cid);\n if (!id)\n return NULL;\n } else\n id = NULL;\n ret = OPENSSL_zalloc(sizeof(*ret));\n if (ret == NULL)\n return NULL;\n ret->expected_policy_set = sk_ASN1_OBJECT_new_null();\n if (ret->expected_policy_set == NULL) {\n OPENSSL_free(ret);\n ASN1_OBJECT_free(id);\n return NULL;\n }\n if (crit)\n ret->flags = POLICY_DATA_FLAG_CRITICAL;\n if (id)\n ret->valid_policy = id;\n else {\n ret->valid_policy = policy->policyid;\n policy->policyid = NULL;\n }\n if (policy) {\n ret->qualifier_set = policy->qualifiers;\n policy->qualifiers = NULL;\n }\n return ret;\n}', 'ASN1_OBJECT *OBJ_dup(const ASN1_OBJECT *o)\n{\n ASN1_OBJECT *r;\n int i;\n char *ln = NULL, *sn = NULL;\n unsigned char *data = NULL;\n if (o == NULL)\n return (NULL);\n if (!(o->flags & ASN1_OBJECT_FLAG_DYNAMIC))\n return ((ASN1_OBJECT *)o);\n r = ASN1_OBJECT_new();\n if (r == NULL) {\n OBJerr(OBJ_F_OBJ_DUP, ERR_R_ASN1_LIB);\n return (NULL);\n }\n data = OPENSSL_malloc(o->length);\n if (data == NULL)\n goto err;\n if (o->data != NULL)\n memcpy(data, o->data, o->length);\n r->data = data;\n r->length = o->length;\n r->nid = o->nid;\n r->ln = r->sn = NULL;\n if (o->ln != NULL) {\n i = strlen(o->ln) + 1;\n ln = OPENSSL_malloc(i);\n if (ln == NULL)\n goto err;\n memcpy(ln, o->ln, i);\n r->ln = ln;\n }\n if (o->sn != NULL) {\n i = strlen(o->sn) + 1;\n sn = OPENSSL_malloc(i);\n if (sn == NULL)\n goto err;\n memcpy(sn, o->sn, i);\n r->sn = sn;\n }\n r->flags = o->flags | (ASN1_OBJECT_FLAG_DYNAMIC |\n ASN1_OBJECT_FLAG_DYNAMIC_STRINGS |\n ASN1_OBJECT_FLAG_DYNAMIC_DATA);\n return (r);\n err:\n OBJerr(OBJ_F_OBJ_DUP, ERR_R_MALLOC_FAILURE);\n OPENSSL_free(ln);\n OPENSSL_free(sn);\n OPENSSL_free(data);\n OPENSSL_free(r);\n return (NULL);\n}', 'ASN1_OBJECT *ASN1_OBJECT_new(void)\n{\n ASN1_OBJECT *ret;\n ret = OPENSSL_zalloc(sizeof(*ret));\n if (ret == NULL) {\n ASN1err(ASN1_F_ASN1_OBJECT_NEW, ERR_R_MALLOC_FAILURE);\n return (NULL);\n }\n ret->flags = ASN1_OBJECT_FLAG_DYNAMIC;\n return (ret);\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}'] |
26,926 | 0 | https://github.com/openssl/openssl/blob/c15e95a61dacfc326cf9cdf05935ae8c6c97bcf6/crypto/cms/cms_smime.c/#L117 | static int cms_copy_content(BIO *out, BIO *in, unsigned int flags)
{
unsigned char buf[4096];
int r = 0, i;
BIO *tmpout;
tmpout = cms_get_text_bio(out, flags);
if (tmpout == NULL) {
CMSerr(CMS_F_CMS_COPY_CONTENT, ERR_R_MALLOC_FAILURE);
goto err;
}
for (;;) {
i = BIO_read(in, buf, sizeof(buf));
if (i <= 0) {
if (BIO_method_type(in) == BIO_TYPE_CIPHER) {
if (!BIO_get_cipher_status(in))
goto err;
}
if (i < 0)
goto err;
break;
}
if (tmpout && (BIO_write(tmpout, buf, i) != i))
goto err;
}
if (flags & CMS_TEXT) {
if (!SMIME_text(tmpout, out)) {
CMSerr(CMS_F_CMS_COPY_CONTENT, CMS_R_SMIME_TEXT_ERROR);
goto err;
}
}
r = 1;
err:
if (tmpout != out)
BIO_free(tmpout);
return r;
} | ['static int cms_copy_content(BIO *out, BIO *in, unsigned int flags)\n{\n unsigned char buf[4096];\n int r = 0, i;\n BIO *tmpout;\n tmpout = cms_get_text_bio(out, flags);\n if (tmpout == NULL) {\n CMSerr(CMS_F_CMS_COPY_CONTENT, ERR_R_MALLOC_FAILURE);\n goto err;\n }\n for (;;) {\n i = BIO_read(in, buf, sizeof(buf));\n if (i <= 0) {\n if (BIO_method_type(in) == BIO_TYPE_CIPHER) {\n if (!BIO_get_cipher_status(in))\n goto err;\n }\n if (i < 0)\n goto err;\n break;\n }\n if (tmpout && (BIO_write(tmpout, buf, i) != i))\n goto err;\n }\n if (flags & CMS_TEXT) {\n if (!SMIME_text(tmpout, out)) {\n CMSerr(CMS_F_CMS_COPY_CONTENT, CMS_R_SMIME_TEXT_ERROR);\n goto err;\n }\n }\n r = 1;\n err:\n if (tmpout != out)\n BIO_free(tmpout);\n return r;\n}', 'static BIO *cms_get_text_bio(BIO *out, unsigned int flags)\n{\n BIO *rbio;\n if (out == NULL)\n rbio = BIO_new(BIO_s_null());\n else if (flags & CMS_TEXT) {\n rbio = BIO_new(BIO_s_mem());\n BIO_set_mem_eof_return(rbio, 0);\n } else\n rbio = out;\n return rbio;\n}', 'BIO_METHOD *BIO_s_null(void)\n{\n return (&null_method);\n}', 'BIO *BIO_new(BIO_METHOD *method)\n{\n BIO *ret = OPENSSL_malloc(sizeof(*ret));\n if (ret == NULL) {\n BIOerr(BIO_F_BIO_NEW, ERR_R_MALLOC_FAILURE);\n return (NULL);\n }\n if (!BIO_set(ret, method)) {\n OPENSSL_free(ret);\n ret = NULL;\n }\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}', 'int BIO_read(BIO *b, void *out, int outl)\n{\n int i;\n long (*cb) (BIO *, int, const char *, int, long, long);\n if ((b == NULL) || (b->method == NULL) || (b->method->bread == NULL)) {\n BIOerr(BIO_F_BIO_READ, BIO_R_UNSUPPORTED_METHOD);\n return (-2);\n }\n cb = b->callback;\n if ((cb != NULL) &&\n ((i = (int)cb(b, BIO_CB_READ, out, outl, 0L, 1L)) <= 0))\n return (i);\n if (!b->init) {\n BIOerr(BIO_F_BIO_READ, BIO_R_UNINITIALIZED);\n return (-2);\n }\n i = b->method->bread(b, out, outl);\n if (i > 0)\n b->num_read += (uint64_t)i;\n if (cb != NULL)\n i = (int)cb(b, BIO_CB_READ | BIO_CB_RETURN, out, outl, 0L, (long)i);\n return (i);\n}', 'int BIO_method_type(const BIO *b)\n{\n return b->method->type;\n}', 'int BIO_free(BIO *a)\n{\n int i;\n if (a == NULL)\n return (0);\n i = CRYPTO_add(&a->references, -1, CRYPTO_LOCK_BIO);\n REF_PRINT_COUNT("BIO", a);\n if (i > 0)\n return (1);\n REF_ASSERT_ISNT(i < 0);\n if ((a->callback != NULL) &&\n ((i = (int)a->callback(a, BIO_CB_FREE, NULL, 0, 0L, 1L)) <= 0))\n return (i);\n CRYPTO_free_ex_data(CRYPTO_EX_INDEX_BIO, a, &a->ex_data);\n if ((a->method != NULL) && (a->method->destroy != NULL))\n a->method->destroy(a);\n OPENSSL_free(a);\n return (1);\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}'] |
26,927 | 0 | https://github.com/libav/libav/blob/9e12002f114d7e0b0ef69519518cdc0391e5e198/avconv.c/#L1480 | static void do_video_stats(AVFormatContext *os, OutputStream *ost,
int frame_size)
{
AVCodecContext *enc;
int frame_number;
double ti1, bitrate, avg_bitrate;
if (!vstats_file) {
vstats_file = fopen(vstats_filename, "w");
if (!vstats_file) {
perror("fopen");
exit_program(1);
}
}
enc = ost->st->codec;
if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
frame_number = ost->frame_number;
fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality / (float)FF_QP2LAMBDA);
if (enc->flags&CODEC_FLAG_PSNR)
fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0] / (enc->width * enc->height * 255.0 * 255.0)));
fprintf(vstats_file,"f_size= %6d ", frame_size);
ti1 = ost->sync_opts * av_q2d(enc->time_base);
if (ti1 < 0.01)
ti1 = 0.01;
bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
(double)video_size / 1024, ti1, bitrate, avg_bitrate);
fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
}
} | ['static void do_video_stats(AVFormatContext *os, OutputStream *ost,\n int frame_size)\n{\n AVCodecContext *enc;\n int frame_number;\n double ti1, bitrate, avg_bitrate;\n if (!vstats_file) {\n vstats_file = fopen(vstats_filename, "w");\n if (!vstats_file) {\n perror("fopen");\n exit_program(1);\n }\n }\n enc = ost->st->codec;\n if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {\n frame_number = ost->frame_number;\n fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality / (float)FF_QP2LAMBDA);\n if (enc->flags&CODEC_FLAG_PSNR)\n fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0] / (enc->width * enc->height * 255.0 * 255.0)));\n fprintf(vstats_file,"f_size= %6d ", frame_size);\n ti1 = ost->sync_opts * av_q2d(enc->time_base);\n if (ti1 < 0.01)\n ti1 = 0.01;\n bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;\n avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;\n fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",\n (double)video_size / 1024, ti1, bitrate, avg_bitrate);\n fprintf(vstats_file, "type= %c\\n", av_get_picture_type_char(enc->coded_frame->pict_type));\n }\n}'] |
26,928 | 0 | https://github.com/openssl/openssl/blob/1fac96e4d6484a517f2ebe99b72016726391723c/crypto/asn1/asn1_lib.c/#L222 | static void asn1_put_length(unsigned char **pp, int length)
{
unsigned char *p= *pp;
int i,l;
if (length <= 127)
*(p++)=(unsigned char)length;
else
{
l=length;
for (i=0; l > 0; i++)
l>>=8;
*(p++)=i|0x80;
l=i;
while (i-- > 0)
{
p[i]=length&0xff;
length>>=8;
}
p+=l;
}
*pp=p;
} | ['int X509_PUBKEY_set(X509_PUBKEY **x, EVP_PKEY *pkey)\n\t{\n\tint ok=0;\n\tX509_PUBKEY *pk;\n\tX509_ALGOR *a;\n\tASN1_OBJECT *o;\n\tunsigned char *s,*p;\n\tint i;\n\tif (x == NULL) return(0);\n\tif ((pk=X509_PUBKEY_new()) == NULL) goto err;\n\ta=pk->algor;\n\tif ((o=OBJ_nid2obj(pkey->type)) == NULL) goto err;\n\tASN1_OBJECT_free(a->algorithm);\n\ta->algorithm=o;\n\tif (!pkey->save_parameters || (pkey->type == EVP_PKEY_RSA))\n\t\t{\n\t\tif ((a->parameter == NULL) ||\n\t\t\t(a->parameter->type != V_ASN1_NULL))\n\t\t\t{\n\t\t\tASN1_TYPE_free(a->parameter);\n\t\t\ta->parameter=ASN1_TYPE_new();\n\t\t\ta->parameter->type=V_ASN1_NULL;\n\t\t\t}\n\t\t}\n\telse\n#ifndef NO_DSA\n\t\tif (pkey->type == EVP_PKEY_DSA)\n\t\t{\n\t\tunsigned char *pp;\n\t\tDSA *dsa;\n\t\tdsa=pkey->pkey.dsa;\n\t\tdsa->write_params=0;\n\t\tASN1_TYPE_free(a->parameter);\n\t\ti=i2d_DSAparams(dsa,NULL);\n\t\tp=(unsigned char *)Malloc(i);\n\t\tpp=p;\n\t\ti2d_DSAparams(dsa,&pp);\n\t\ta->parameter=ASN1_TYPE_new();\n\t\ta->parameter->type=V_ASN1_SEQUENCE;\n\t\ta->parameter->value.sequence=ASN1_STRING_new();\n\t\tASN1_STRING_set(a->parameter->value.sequence,p,i);\n\t\tFree(p);\n\t\t}\n\telse\n#endif\n\t\t{\n\t\tX509err(X509_F_X509_PUBKEY_SET,X509_R_UNSUPPORTED_ALGORITHM);\n\t\tgoto err;\n\t\t}\n\tif ((i=i2d_PublicKey(pkey,NULL)) <= 0) goto err;\n\tif ((s=(unsigned char *)Malloc(i+1)) == NULL) goto err;\n\tp=s;\n\ti2d_PublicKey(pkey,&p);\n\tif (!ASN1_BIT_STRING_set(pk->public_key,s,i)) goto err;\n\tpk->public_key->flags&= ~(ASN1_STRING_FLAG_BITS_LEFT|0x07);\n\tpk->public_key->flags|=ASN1_STRING_FLAG_BITS_LEFT;\n\tFree(s);\n\tCRYPTO_add(&pkey->references,1,CRYPTO_LOCK_EVP_PKEY);\n\tpk->pkey=pkey;\n\tif (*x != NULL)\n\t\tX509_PUBKEY_free(*x);\n\t*x=pk;\n\tpk=NULL;\n\tok=1;\nerr:\n\tif (pk != NULL) X509_PUBKEY_free(pk);\n\treturn(ok);\n\t}', 'int i2d_DSAparams(DSA *a, unsigned char **pp)\n\t{\n\tBIGNUM *num[3];\n\tASN1_INTEGER bs;\n\tunsigned int j,i,tot=0,len,max=0;\n\tint t,ret= -1;\n\tunsigned char *p;\n\tif (a == NULL) return(0);\n\tnum[0]=a->p;\n\tnum[1]=a->q;\n\tnum[2]=a->g;\n\tfor (i=0; i<3; i++)\n\t\t{\n\t\tif (num[i] == NULL) continue;\n\t\tj=BN_num_bits(num[i]);\n\t\tlen=((j == 0)?0:((j/8)+1));\n\t\tif (len > max) max=len;\n\t\tlen=ASN1_object_size(0,len,\n\t\t\t(num[i]->neg)?V_ASN1_NEG_INTEGER:V_ASN1_INTEGER);\n\t\ttot+=len;\n\t\t}\n\tt=ASN1_object_size(1,tot,V_ASN1_SEQUENCE);\n\tif (pp == NULL) return(t);\n\tp= *pp;\n\tASN1_put_object(&p,1,tot,V_ASN1_SEQUENCE,V_ASN1_UNIVERSAL);\n\tbs.type=V_ASN1_INTEGER;\n\tbs.data=(unsigned char *)Malloc(max+4);\n\tif (bs.data == NULL)\n\t\t{\n\t\tASN1err(ASN1_F_I2D_DSAPARAMS,ERR_R_MALLOC_FAILURE);\n\t\tgoto err;\n\t\t}\n\tfor (i=0; i<3; i++)\n\t\t{\n\t\tif (num[i] == NULL) continue;\n\t\tbs.length=BN_bn2bin(num[i],bs.data);\n\t\ti2d_ASN1_INTEGER(&bs,&p);\n\t\t}\n\tFree((char *)bs.data);\n\tret=t;\nerr:\n\t*pp=p;\n\treturn(ret);\n\t}', 'void ASN1_put_object(unsigned char **pp, int constructed, int length, int tag,\n\t int xclass)\n\t{\n\tunsigned char *p= *pp;\n\tint i;\n\ti=(constructed)?V_ASN1_CONSTRUCTED:0;\n\ti|=(xclass&V_ASN1_PRIVATE);\n\tif (tag < 31)\n\t\t*(p++)=i|(tag&V_ASN1_PRIMITIVE_TAG);\n\telse\n\t\t{\n\t\t*(p++)=i|V_ASN1_PRIMITIVE_TAG;\n\t\twhile (tag > 0x7f)\n\t\t\t{\n\t\t\t*(p++)=(tag&0x7f)|0x80;\n\t\t\ttag>>=7;\n\t\t\t}\n\t\t*(p++)=(tag&0x7f);\n\t\t}\n\tif ((constructed == 2) && (length == 0))\n\t\t*(p++)=0x80;\n\telse\n\t\tasn1_put_length(&p,length);\n\t*pp=p;\n\t}', 'static void asn1_put_length(unsigned char **pp, int length)\n\t{\n\tunsigned char *p= *pp;\n\tint i,l;\n\tif (length <= 127)\n\t\t*(p++)=(unsigned char)length;\n\telse\n\t\t{\n\t\tl=length;\n\t\tfor (i=0; l > 0; i++)\n\t\t\tl>>=8;\n\t\t*(p++)=i|0x80;\n\t\tl=i;\n\t\twhile (i-- > 0)\n\t\t\t{\n\t\t\tp[i]=length&0xff;\n\t\t\tlength>>=8;\n\t\t\t}\n\t\tp+=l;\n\t\t}\n\t*pp=p;\n\t}'] |
26,929 | 0 | https://github.com/nginx/nginx/blob/e4ecddfdb0d2ffc872658e36028971ad9a873726/src/core/ngx_string.c/#L244 | u_char *
ngx_vsnprintf(u_char *buf, size_t max, const char *fmt, va_list args)
{
u_char *p, zero, *last;
int d;
float f, scale;
size_t len, slen;
int64_t i64;
uint64_t ui64;
ngx_msec_t ms;
ngx_uint_t width, sign, hex, max_width, frac_width, i;
ngx_str_t *v;
ngx_variable_value_t *vv;
if (max == 0) {
return buf;
}
last = buf + max;
while (*fmt && buf < last) {
if (*fmt == '%') {
i64 = 0;
ui64 = 0;
zero = (u_char) ((*++fmt == '0') ? '0' : ' ');
width = 0;
sign = 1;
hex = 0;
max_width = 0;
frac_width = 0;
slen = (size_t) -1;
while (*fmt >= '0' && *fmt <= '9') {
width = width * 10 + *fmt++ - '0';
}
for ( ;; ) {
switch (*fmt) {
case 'u':
sign = 0;
fmt++;
continue;
case 'm':
max_width = 1;
fmt++;
continue;
case 'X':
hex = 2;
sign = 0;
fmt++;
continue;
case 'x':
hex = 1;
sign = 0;
fmt++;
continue;
case '.':
fmt++;
while (*fmt >= '0' && *fmt <= '9') {
frac_width = frac_width * 10 + *fmt++ - '0';
}
break;
case '*':
slen = va_arg(args, size_t);
fmt++;
continue;
default:
break;
}
break;
}
switch (*fmt) {
case 'V':
v = va_arg(args, ngx_str_t *);
len = v->len;
len = (buf + len < last) ? len : (size_t) (last - buf);
buf = ngx_cpymem(buf, v->data, len);
fmt++;
continue;
case 'v':
vv = va_arg(args, ngx_variable_value_t *);
len = vv->len;
len = (buf + len < last) ? len : (size_t) (last - buf);
buf = ngx_cpymem(buf, vv->data, len);
fmt++;
continue;
case 's':
p = va_arg(args, u_char *);
if (slen == (size_t) -1) {
while (*p && buf < last) {
*buf++ = *p++;
}
} else {
len = (buf + slen < last) ? slen : (size_t) (last - buf);
buf = ngx_cpymem(buf, p, len);
}
fmt++;
continue;
case 'O':
i64 = (int64_t) va_arg(args, off_t);
sign = 1;
break;
case 'P':
i64 = (int64_t) va_arg(args, ngx_pid_t);
sign = 1;
break;
case 'T':
i64 = (int64_t) va_arg(args, time_t);
sign = 1;
break;
case 'M':
ms = (ngx_msec_t) va_arg(args, ngx_msec_t);
if ((ngx_msec_int_t) ms == -1) {
sign = 1;
i64 = -1;
} else {
sign = 0;
ui64 = (uint64_t) ms;
}
break;
case 'z':
if (sign) {
i64 = (int64_t) va_arg(args, ssize_t);
} else {
ui64 = (uint64_t) va_arg(args, size_t);
}
break;
case 'i':
if (sign) {
i64 = (int64_t) va_arg(args, ngx_int_t);
} else {
ui64 = (uint64_t) va_arg(args, ngx_uint_t);
}
if (max_width) {
width = NGX_INT_T_LEN;
}
break;
case 'd':
if (sign) {
i64 = (int64_t) va_arg(args, int);
} else {
ui64 = (uint64_t) va_arg(args, u_int);
}
break;
case 'l':
if (sign) {
i64 = (int64_t) va_arg(args, long);
} else {
ui64 = (uint64_t) va_arg(args, u_long);
}
break;
case 'D':
if (sign) {
i64 = (int64_t) va_arg(args, int32_t);
} else {
ui64 = (uint64_t) va_arg(args, uint32_t);
}
break;
case 'L':
if (sign) {
i64 = va_arg(args, int64_t);
} else {
ui64 = va_arg(args, uint64_t);
}
break;
case 'A':
if (sign) {
i64 = (int64_t) va_arg(args, ngx_atomic_int_t);
} else {
ui64 = (uint64_t) va_arg(args, ngx_atomic_uint_t);
}
if (max_width) {
width = NGX_ATOMIC_T_LEN;
}
break;
case 'f':
f = (float) va_arg(args, double);
if (f < 0) {
*buf++ = '-';
f = -f;
}
ui64 = (int64_t) f;
buf = ngx_sprintf_num(buf, last, ui64, zero, 0, width);
if (frac_width) {
if (buf < last) {
*buf++ = '.';
}
scale = 1.0;
for (i = 0; i < frac_width; i++) {
scale *= 10.0;
}
ui64 = (uint64_t) ((f - (int64_t) ui64) * scale);
buf = ngx_sprintf_num(buf, last, ui64, '0', 0, frac_width);
}
fmt++;
continue;
#if !(NGX_WIN32)
case 'r':
i64 = (int64_t) va_arg(args, rlim_t);
sign = 1;
break;
#endif
case 'p':
ui64 = (uintptr_t) va_arg(args, void *);
hex = 2;
sign = 0;
zero = '0';
width = NGX_PTR_SIZE * 2;
break;
case 'c':
d = va_arg(args, int);
*buf++ = (u_char) (d & 0xff);
fmt++;
continue;
case 'Z':
*buf++ = '\0';
fmt++;
continue;
case 'N':
#if (NGX_WIN32)
*buf++ = CR;
#endif
*buf++ = LF;
fmt++;
continue;
case '%':
*buf++ = '%';
fmt++;
continue;
default:
*buf++ = *fmt++;
continue;
}
if (sign) {
if (i64 < 0) {
*buf++ = '-';
ui64 = (uint64_t) -i64;
} else {
ui64 = (uint64_t) i64;
}
}
buf = ngx_sprintf_num(buf, last, ui64, zero, hex, width);
fmt++;
} else {
*buf++ = *fmt++;
}
}
return buf;
} | ['static ngx_uint_t\nngx_reap_children(ngx_cycle_t *cycle)\n{\n ngx_int_t i, n;\n ngx_uint_t live;\n ngx_channel_t ch;\n ngx_core_conf_t *ccf;\n ch.command = NGX_CMD_CLOSE_CHANNEL;\n ch.fd = -1;\n live = 0;\n for (i = 0; i < ngx_last_process; i++) {\n ngx_log_debug7(NGX_LOG_DEBUG_EVENT, cycle->log, 0,\n "child: %d %P e:%d t:%d d:%d r:%d j:%d",\n i,\n ngx_processes[i].pid,\n ngx_processes[i].exiting,\n ngx_processes[i].exited,\n ngx_processes[i].detached,\n ngx_processes[i].respawn,\n ngx_processes[i].just_respawn);\n if (ngx_processes[i].pid == -1) {\n continue;\n }\n if (ngx_processes[i].exited) {\n if (!ngx_processes[i].detached) {\n ngx_close_channel(ngx_processes[i].channel, cycle->log);\n ngx_processes[i].channel[0] = -1;\n ngx_processes[i].channel[1] = -1;\n ch.pid = ngx_processes[i].pid;\n ch.slot = i;\n for (n = 0; n < ngx_last_process; n++) {\n if (ngx_processes[n].exited\n || ngx_processes[n].pid == -1\n || ngx_processes[n].channel[0] == -1)\n {\n continue;\n }\n ngx_log_debug3(NGX_LOG_DEBUG_CORE, cycle->log, 0,\n "pass close channel s:%i pid:%P to:%P",\n ch.slot, ch.pid, ngx_processes[n].pid);\n ngx_write_channel(ngx_processes[n].channel[0],\n &ch, sizeof(ngx_channel_t), cycle->log);\n }\n }\n if (ngx_processes[i].respawn\n && !ngx_processes[i].exiting\n && !ngx_terminate\n && !ngx_quit)\n {\n if (ngx_spawn_process(cycle, ngx_processes[i].proc,\n ngx_processes[i].data,\n ngx_processes[i].name, i)\n == NGX_INVALID_PID)\n {\n ngx_log_error(NGX_LOG_ALERT, cycle->log, 0,\n "can not respawn %s", ngx_processes[i].name);\n continue;\n }\n ch.command = NGX_CMD_OPEN_CHANNEL;\n ch.pid = ngx_processes[ngx_process_slot].pid;\n ch.slot = ngx_process_slot;\n ch.fd = ngx_processes[ngx_process_slot].channel[0];\n for (n = 0; n < ngx_last_process; n++) {\n if (n == ngx_process_slot\n || ngx_processes[n].pid == -1\n || ngx_processes[n].channel[0] == -1)\n {\n continue;\n }\n ngx_log_debug6(NGX_LOG_DEBUG_CORE, cycle->log, 0,\n "pass channel s:%d pid:%P fd:%d to s:%i pid:%P fd:%d",\n ch.slot, ch.pid, ch.fd,\n n, ngx_processes[n].pid,\n ngx_processes[n].channel[0]);\n ngx_write_channel(ngx_processes[n].channel[0],\n &ch, sizeof(ngx_channel_t), cycle->log);\n }\n live = 1;\n continue;\n }\n if (ngx_processes[i].pid == ngx_new_binary) {\n ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx,\n ngx_core_module);\n if (ngx_rename_file((char *) ccf->oldpid.data,\n (char *) ccf->pid.data)\n != NGX_OK)\n {\n ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,\n ngx_rename_file_n " %s back to %s failed "\n "after the new binary process \\"%s\\" exited",\n ccf->oldpid.data, ccf->pid.data, ngx_argv[0]);\n }\n ngx_new_binary = 0;\n if (ngx_noaccepting) {\n ngx_restart = 1;\n ngx_noaccepting = 0;\n }\n }\n if (i == ngx_last_process - 1) {\n ngx_last_process--;\n } else {\n ngx_processes[i].pid = -1;\n }\n } else if (ngx_processes[i].exiting || !ngx_processes[i].detached) {\n live = 1;\n }\n }\n return live;\n}', 'void\nngx_log_error_core(ngx_uint_t level, ngx_log_t *log, ngx_err_t err,\n const char *fmt, ...)\n#else\nvoid\nngx_log_error_core(ngx_uint_t level, ngx_log_t *log, ngx_err_t err,\n const char *fmt, va_list args)\n#endif\n{\n#if (NGX_HAVE_VARIADIC_MACROS)\n va_list args;\n#endif\n u_char errstr[NGX_MAX_ERROR_STR], *p, *last;\n if (log->file->fd == NGX_INVALID_FILE) {\n return;\n }\n last = errstr + NGX_MAX_ERROR_STR;\n ngx_memcpy(errstr, ngx_cached_err_log_time.data,\n ngx_cached_err_log_time.len);\n p = errstr + ngx_cached_err_log_time.len;\n p = ngx_snprintf(p, last - p, " [%s] ", err_levels[level]);\n p = ngx_snprintf(p, last - p, "%P#" NGX_TID_T_FMT ": ",\n ngx_log_pid, ngx_log_tid);\n if (log->connection) {\n p = ngx_snprintf(p, last - p, "*%uA ", log->connection);\n }\n#if (NGX_HAVE_VARIADIC_MACROS)\n va_start(args, fmt);\n p = ngx_vsnprintf(p, last - p, fmt, args);\n va_end(args);\n#else\n p = ngx_vsnprintf(p, last - p, fmt, args);\n#endif\n if (err) {\n if (p > last - 50) {\n p = last - 50;\n *p++ = \'.\';\n *p++ = \'.\';\n *p++ = \'.\';\n }\n#if (NGX_WIN32)\n p = ngx_snprintf(p, last - p, ((unsigned) err < 0x80000000)\n ? " (%d: " : " (%Xd: ", err);\n#else\n p = ngx_snprintf(p, last - p, " (%d: ", err);\n#endif\n p = ngx_strerror_r(err, p, last - p);\n if (p < last) {\n *p++ = \')\';\n }\n }\n if (level != NGX_LOG_DEBUG && log->handler) {\n p = log->handler(log, p, last - p);\n }\n if (p > last - NGX_LINEFEED_SIZE) {\n p = last - NGX_LINEFEED_SIZE;\n }\n ngx_linefeed(p);\n (void) ngx_write_fd(log->file->fd, errstr, p - errstr);\n}', 'u_char * ngx_cdecl\nngx_snprintf(u_char *buf, size_t max, const char *fmt, ...)\n{\n u_char *p;\n va_list args;\n va_start(args, fmt);\n p = ngx_vsnprintf(buf, max, fmt, args);\n va_end(args);\n return p;\n}', "u_char *\nngx_vsnprintf(u_char *buf, size_t max, const char *fmt, va_list args)\n{\n u_char *p, zero, *last;\n int d;\n float f, scale;\n size_t len, slen;\n int64_t i64;\n uint64_t ui64;\n ngx_msec_t ms;\n ngx_uint_t width, sign, hex, max_width, frac_width, i;\n ngx_str_t *v;\n ngx_variable_value_t *vv;\n if (max == 0) {\n return buf;\n }\n last = buf + max;\n while (*fmt && buf < last) {\n if (*fmt == '%') {\n i64 = 0;\n ui64 = 0;\n zero = (u_char) ((*++fmt == '0') ? '0' : ' ');\n width = 0;\n sign = 1;\n hex = 0;\n max_width = 0;\n frac_width = 0;\n slen = (size_t) -1;\n while (*fmt >= '0' && *fmt <= '9') {\n width = width * 10 + *fmt++ - '0';\n }\n for ( ;; ) {\n switch (*fmt) {\n case 'u':\n sign = 0;\n fmt++;\n continue;\n case 'm':\n max_width = 1;\n fmt++;\n continue;\n case 'X':\n hex = 2;\n sign = 0;\n fmt++;\n continue;\n case 'x':\n hex = 1;\n sign = 0;\n fmt++;\n continue;\n case '.':\n fmt++;\n while (*fmt >= '0' && *fmt <= '9') {\n frac_width = frac_width * 10 + *fmt++ - '0';\n }\n break;\n case '*':\n slen = va_arg(args, size_t);\n fmt++;\n continue;\n default:\n break;\n }\n break;\n }\n switch (*fmt) {\n case 'V':\n v = va_arg(args, ngx_str_t *);\n len = v->len;\n len = (buf + len < last) ? len : (size_t) (last - buf);\n buf = ngx_cpymem(buf, v->data, len);\n fmt++;\n continue;\n case 'v':\n vv = va_arg(args, ngx_variable_value_t *);\n len = vv->len;\n len = (buf + len < last) ? len : (size_t) (last - buf);\n buf = ngx_cpymem(buf, vv->data, len);\n fmt++;\n continue;\n case 's':\n p = va_arg(args, u_char *);\n if (slen == (size_t) -1) {\n while (*p && buf < last) {\n *buf++ = *p++;\n }\n } else {\n len = (buf + slen < last) ? slen : (size_t) (last - buf);\n buf = ngx_cpymem(buf, p, len);\n }\n fmt++;\n continue;\n case 'O':\n i64 = (int64_t) va_arg(args, off_t);\n sign = 1;\n break;\n case 'P':\n i64 = (int64_t) va_arg(args, ngx_pid_t);\n sign = 1;\n break;\n case 'T':\n i64 = (int64_t) va_arg(args, time_t);\n sign = 1;\n break;\n case 'M':\n ms = (ngx_msec_t) va_arg(args, ngx_msec_t);\n if ((ngx_msec_int_t) ms == -1) {\n sign = 1;\n i64 = -1;\n } else {\n sign = 0;\n ui64 = (uint64_t) ms;\n }\n break;\n case 'z':\n if (sign) {\n i64 = (int64_t) va_arg(args, ssize_t);\n } else {\n ui64 = (uint64_t) va_arg(args, size_t);\n }\n break;\n case 'i':\n if (sign) {\n i64 = (int64_t) va_arg(args, ngx_int_t);\n } else {\n ui64 = (uint64_t) va_arg(args, ngx_uint_t);\n }\n if (max_width) {\n width = NGX_INT_T_LEN;\n }\n break;\n case 'd':\n if (sign) {\n i64 = (int64_t) va_arg(args, int);\n } else {\n ui64 = (uint64_t) va_arg(args, u_int);\n }\n break;\n case 'l':\n if (sign) {\n i64 = (int64_t) va_arg(args, long);\n } else {\n ui64 = (uint64_t) va_arg(args, u_long);\n }\n break;\n case 'D':\n if (sign) {\n i64 = (int64_t) va_arg(args, int32_t);\n } else {\n ui64 = (uint64_t) va_arg(args, uint32_t);\n }\n break;\n case 'L':\n if (sign) {\n i64 = va_arg(args, int64_t);\n } else {\n ui64 = va_arg(args, uint64_t);\n }\n break;\n case 'A':\n if (sign) {\n i64 = (int64_t) va_arg(args, ngx_atomic_int_t);\n } else {\n ui64 = (uint64_t) va_arg(args, ngx_atomic_uint_t);\n }\n if (max_width) {\n width = NGX_ATOMIC_T_LEN;\n }\n break;\n case 'f':\n f = (float) va_arg(args, double);\n if (f < 0) {\n *buf++ = '-';\n f = -f;\n }\n ui64 = (int64_t) f;\n buf = ngx_sprintf_num(buf, last, ui64, zero, 0, width);\n if (frac_width) {\n if (buf < last) {\n *buf++ = '.';\n }\n scale = 1.0;\n for (i = 0; i < frac_width; i++) {\n scale *= 10.0;\n }\n ui64 = (uint64_t) ((f - (int64_t) ui64) * scale);\n buf = ngx_sprintf_num(buf, last, ui64, '0', 0, frac_width);\n }\n fmt++;\n continue;\n#if !(NGX_WIN32)\n case 'r':\n i64 = (int64_t) va_arg(args, rlim_t);\n sign = 1;\n break;\n#endif\n case 'p':\n ui64 = (uintptr_t) va_arg(args, void *);\n hex = 2;\n sign = 0;\n zero = '0';\n width = NGX_PTR_SIZE * 2;\n break;\n case 'c':\n d = va_arg(args, int);\n *buf++ = (u_char) (d & 0xff);\n fmt++;\n continue;\n case 'Z':\n *buf++ = '\\0';\n fmt++;\n continue;\n case 'N':\n#if (NGX_WIN32)\n *buf++ = CR;\n#endif\n *buf++ = LF;\n fmt++;\n continue;\n case '%':\n *buf++ = '%';\n fmt++;\n continue;\n default:\n *buf++ = *fmt++;\n continue;\n }\n if (sign) {\n if (i64 < 0) {\n *buf++ = '-';\n ui64 = (uint64_t) -i64;\n } else {\n ui64 = (uint64_t) i64;\n }\n }\n buf = ngx_sprintf_num(buf, last, ui64, zero, hex, width);\n fmt++;\n } else {\n *buf++ = *fmt++;\n }\n }\n return buf;\n}"] |
26,930 | 0 | https://github.com/openssl/openssl/blob/0cb957a6846dde0bee52f69c538aae5e7062ac73/crypto/evp/evp_pbe.c/#L98 | int EVP_PBE_CipherInit (ASN1_OBJECT *pbe_obj, const char *pass, int passlen,
ASN1_TYPE *param, EVP_CIPHER_CTX *ctx, int en_de)
{
EVP_PBE_CTL *pbetmp, pbelu;
int i;
pbelu.pbe_nid = OBJ_obj2nid(pbe_obj);
if (pbelu.pbe_nid != NID_undef) i = sk_find(pbe_algs, (char *)&pbelu);
else i = -1;
if (i == -1) {
char obj_tmp[80];
EVPerr(EVP_F_EVP_PBE_CIPHERINIT,EVP_R_UNKNOWN_PBE_ALGORITHM);
if (!pbe_obj) strcpy (obj_tmp, "NULL");
else i2t_ASN1_OBJECT(obj_tmp, 80, pbe_obj);
ERR_add_error_data(2, "TYPE=", obj_tmp);
return 0;
}
if(!pass) passlen = 0;
else if (passlen == -1) passlen = strlen(pass);
pbetmp = (EVP_PBE_CTL *)sk_value (pbe_algs, i);
i = (*pbetmp->keygen)(ctx, pass, passlen, param, pbetmp->cipher,
pbetmp->md, en_de);
if (!i) {
EVPerr(EVP_F_EVP_PBE_CIPHERINIT,EVP_R_KEYGEN_FAILURE);
return 0;
}
return 1;
} | ['int EVP_PBE_CipherInit (ASN1_OBJECT *pbe_obj, const char *pass, int passlen,\n\t ASN1_TYPE *param, EVP_CIPHER_CTX *ctx, int en_de)\n{\n\tEVP_PBE_CTL *pbetmp, pbelu;\n\tint i;\n\tpbelu.pbe_nid = OBJ_obj2nid(pbe_obj);\n\tif (pbelu.pbe_nid != NID_undef) i = sk_find(pbe_algs, (char *)&pbelu);\n\telse i = -1;\n\tif (i == -1) {\n\t\tchar obj_tmp[80];\n\t\tEVPerr(EVP_F_EVP_PBE_CIPHERINIT,EVP_R_UNKNOWN_PBE_ALGORITHM);\n\t\tif (!pbe_obj) strcpy (obj_tmp, "NULL");\n\t\telse i2t_ASN1_OBJECT(obj_tmp, 80, pbe_obj);\n\t\tERR_add_error_data(2, "TYPE=", obj_tmp);\n\t\treturn 0;\n\t}\n\tif(!pass) passlen = 0;\n\telse if (passlen == -1) passlen = strlen(pass);\n\tpbetmp = (EVP_PBE_CTL *)sk_value (pbe_algs, i);\n\ti = (*pbetmp->keygen)(ctx, pass, passlen, param, pbetmp->cipher,\n\t\t\t\t\t\t pbetmp->md, en_de);\n\tif (!i) {\n\t\tEVPerr(EVP_F_EVP_PBE_CIPHERINIT,EVP_R_KEYGEN_FAILURE);\n\t\treturn 0;\n\t}\n\treturn 1;\n}', 'int OBJ_obj2nid(ASN1_OBJECT *a)\n\t{\n\tASN1_OBJECT **op;\n\tADDED_OBJ ad,*adp;\n\tif (a == NULL)\n\t\treturn(NID_undef);\n\tif (a->nid != 0)\n\t\treturn(a->nid);\n\tif (added != NULL)\n\t\t{\n\t\tad.type=ADDED_DATA;\n\t\tad.obj=a;\n\t\tadp=(ADDED_OBJ *)lh_retrieve(added,&ad);\n\t\tif (adp != NULL) return (adp->obj->nid);\n\t\t}\n\top=(ASN1_OBJECT **)OBJ_bsearch((char *)&a,(char *)obj_objs,NUM_OBJ,\n\t\tsizeof(ASN1_OBJECT *),(int (*)())obj_cmp);\n\tif (op == NULL)\n\t\treturn(NID_undef);\n\treturn((*op)->nid);\n\t}', 'char *sk_value(STACK *st, int i)\n{\n\tif(st == NULL) return NULL;\n\treturn st->data[i];\n}'] |
26,931 | 0 | https://github.com/openssl/openssl/blob/2864df8f9d3264e19b49a246e272fb513f4c1be3/crypto/bn/bn_ctx.c/#L270 | static unsigned int BN_STACK_pop(BN_STACK *st)
{
return st->indexes[--(st->depth)];
} | ['static int test_is_prime_enhanced(void)\n{\n int ret;\n int status = 0;\n BIGNUM *bn = NULL;\n ret = TEST_ptr(bn = BN_new())\n && TEST_true(BN_set_word(bn, 11))\n && TEST_true(bn_miller_rabin_is_prime(bn, 10, ctx, NULL, 1, &status))\n && TEST_int_eq(status, BN_PRIMETEST_PROBABLY_PRIME);\n BN_free(bn);\n return ret;\n}', '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}', '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_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}', '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_div_fixed_top(BIGNUM *dv, BIGNUM *rm, const BIGNUM *num,\n const BIGNUM *divisor, BN_CTX *ctx)\n{\n int norm_shift, i, j, loop;\n BIGNUM *tmp, *snum, *sdiv, *res;\n BN_ULONG *resp, *wnum, *wnumtop;\n BN_ULONG d0, d1;\n int num_n, div_n;\n assert(divisor->top > 0 && divisor->d[divisor->top - 1] != 0);\n bn_check_top(num);\n bn_check_top(divisor);\n bn_check_top(dv);\n bn_check_top(rm);\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 if (!BN_copy(sdiv, divisor))\n goto err;\n norm_shift = bn_left_align(sdiv);\n sdiv->neg = 0;\n if (!(bn_lshift_fixed_top(snum, num, norm_shift)))\n goto err;\n div_n = sdiv->top;\n num_n = snum->top;\n if (num_n <= div_n) {\n if (bn_wexpand(snum, div_n + 1) == NULL)\n goto err;\n memset(&(snum->d[num_n]), 0, (div_n - num_n + 1) * sizeof(BN_ULONG));\n snum->top = num_n = div_n + 1;\n }\n loop = num_n - div_n;\n wnum = &(snum->d[loop]);\n wnumtop = &(snum->d[num_n - 1]);\n d0 = sdiv->d[div_n - 1];\n d1 = (div_n == 1) ? 0 : sdiv->d[div_n - 2];\n if (!bn_wexpand(res, loop))\n goto err;\n res->neg = (num->neg ^ divisor->neg);\n res->top = loop;\n res->flags |= BN_FLG_FIXED_TOP;\n resp = &(res->d[loop]);\n if (!bn_wexpand(tmp, (div_n + 1)))\n goto err;\n for (i = 0; i < loop; i++, wnumtop--) {\n BN_ULONG q, l0;\n# if defined(BN_DIV3W)\n q = bn_div_3_words(wnumtop, d1, d0);\n# else\n BN_ULONG n0, n1, rem = 0;\n n0 = wnumtop[0];\n n1 = wnumtop[-1];\n if (n0 == d0)\n q = BN_MASK2;\n else {\n BN_ULONG n2 = (wnumtop == wnum) ? 0 : wnumtop[-2];\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) | n2))\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 <= n2)))\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--;\n l0 = bn_sub_words(wnum, wnum, 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, wnum, tmp->d, div_n);\n (*wnumtop) += l0;\n assert((*wnumtop) == 0);\n *--resp = q;\n }\n snum->neg = num->neg;\n snum->top = div_n;\n snum->flags |= BN_FLG_FIXED_TOP;\n if (rm != NULL)\n bn_rshift_fixed_top(rm, snum, norm_shift);\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 if (ctx == NULL)\n return;\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}'] |
26,932 | 0 | https://gitlab.com/libtiff/libtiff/blob/3adc33842b7533066daea2516741832edc44d5fd/libtiff/tif_tile.c/#L157 | uint32
TIFFNumberOfTiles(TIFF* tif)
{
TIFFDirectory *td = &tif->tif_dir;
uint32 dx = td->td_tilewidth;
uint32 dy = td->td_tilelength;
uint32 dz = td->td_tiledepth;
uint32 ntiles;
if (dx == (uint32) -1)
dx = td->td_imagewidth;
if (dy == (uint32) -1)
dy = td->td_imagelength;
if (dz == (uint32) -1)
dz = td->td_imagedepth;
ntiles = (dx == 0 || dy == 0 || dz == 0) ? 0 :
multiply_32(tif, multiply_32(tif, TIFFhowmany_32(td->td_imagewidth, dx),
TIFFhowmany_32(td->td_imagelength, dy),
"TIFFNumberOfTiles"),
TIFFhowmany_32(td->td_imagedepth, dz), "TIFFNumberOfTiles");
if (td->td_planarconfig == PLANARCONFIG_SEPARATE)
ntiles = multiply_32(tif, ntiles, td->td_samplesperpixel,
"TIFFNumberOfTiles");
return (ntiles);
} | ['static int\ncpTiles(TIFF* in, TIFF* out)\n{\n\ttmsize_t bufsize = TIFFTileSize(in);\n\tunsigned char *buf = (unsigned char *)_TIFFmalloc(bufsize);\n\tif (buf) {\n\t\tttile_t t, nt = TIFFNumberOfTiles(in);\n\t\tuint64 *bytecounts;\n\t\tTIFFGetField(in, TIFFTAG_TILEBYTECOUNTS, &bytecounts);\n\t\tfor (t = 0; t < nt; t++) {\n\t\t\tif (bytecounts[t] > (uint64) bufsize) {\n\t\t\t\tbuf = (unsigned char *)_TIFFrealloc(buf, (tmsize_t)bytecounts[t]);\n\t\t\t\tif (!buf)\n\t\t\t\t\treturn (0);\n\t\t\t\tbufsize = (tmsize_t)bytecounts[t];\n\t\t\t}\n\t\t\tif (TIFFReadRawTile(in, t, buf, (tmsize_t)bytecounts[t]) < 0 ||\n\t\t\t TIFFWriteRawTile(out, t, buf, (tmsize_t)bytecounts[t]) < 0) {\n\t\t\t\t_TIFFfree(buf);\n\t\t\t\treturn (0);\n\t\t\t}\n\t\t}\n\t\t_TIFFfree(buf);\n\t\treturn (1);\n\t}\n\treturn (0);\n}', 'tmsize_t\nTIFFWriteRawTile(TIFF* tif, uint32 tile, void* data, tmsize_t cc)\n{\n\tstatic const char module[] = "TIFFWriteRawTile";\n\tif (!WRITECHECKTILES(tif, module))\n\t\treturn ((tmsize_t)(-1));\n\tif (tile >= tif->tif_dir.td_nstrips) {\n\t\tTIFFErrorExt(tif->tif_clientdata, module, "Tile %lu out of range, max %lu",\n\t\t (unsigned long) tile,\n\t\t (unsigned long) tif->tif_dir.td_nstrips);\n\t\treturn ((tmsize_t)(-1));\n\t}\n\treturn (TIFFAppendToStrip(tif, tile, (uint8*) data, cc) ?\n\t cc : (tmsize_t)(-1));\n}', 'int\nTIFFWriteCheck(TIFF* tif, int tiles, const char* module)\n{\n\tif (tif->tif_mode == O_RDONLY) {\n\t\tTIFFErrorExt(tif->tif_clientdata, module, "File not open for writing");\n\t\treturn (0);\n\t}\n\tif (tiles ^ isTiled(tif)) {\n\t\tTIFFErrorExt(tif->tif_clientdata, module, tiles ?\n\t\t "Can not write tiles to a stripped image" :\n\t\t "Can not write scanlines to a tiled image");\n\t\treturn (0);\n\t}\n\tif (!TIFFFieldSet(tif, FIELD_IMAGEDIMENSIONS)) {\n\t\tTIFFErrorExt(tif->tif_clientdata, module,\n\t\t "Must set \\"ImageWidth\\" before writing data");\n\t\treturn (0);\n\t}\n\tif (tif->tif_dir.td_samplesperpixel == 1) {\n\t\tif (!TIFFFieldSet(tif, FIELD_PLANARCONFIG))\n tif->tif_dir.td_planarconfig = PLANARCONFIG_CONTIG;\n\t} else {\n\t\tif (!TIFFFieldSet(tif, FIELD_PLANARCONFIG)) {\n\t\t\tTIFFErrorExt(tif->tif_clientdata, module,\n\t\t\t "Must set \\"PlanarConfiguration\\" before writing data");\n\t\t\treturn (0);\n\t\t}\n\t}\n\tif (tif->tif_dir.td_stripoffset == NULL && !TIFFSetupStrips(tif)) {\n\t\ttif->tif_dir.td_nstrips = 0;\n\t\tTIFFErrorExt(tif->tif_clientdata, module, "No space for %s arrays",\n\t\t isTiled(tif) ? "tile" : "strip");\n\t\treturn (0);\n\t}\n\tif (isTiled(tif))\n\t{\n\t\ttif->tif_tilesize = TIFFTileSize(tif);\n\t\tif (tif->tif_tilesize == 0)\n\t\t\treturn (0);\n\t}\n\telse\n\t\ttif->tif_tilesize = (tmsize_t)(-1);\n\ttif->tif_scanlinesize = TIFFScanlineSize(tif);\n\tif (tif->tif_scanlinesize == 0)\n\t\treturn (0);\n\ttif->tif_flags |= TIFF_BEENWRITING;\n\treturn (1);\n}', 'int\nTIFFSetupStrips(TIFF* tif)\n{\n\tTIFFDirectory* td = &tif->tif_dir;\n\tif (isTiled(tif))\n\t\ttd->td_stripsperimage =\n\t\t isUnspecified(tif, FIELD_TILEDIMENSIONS) ?\n\t\t\ttd->td_samplesperpixel : TIFFNumberOfTiles(tif);\n\telse\n\t\ttd->td_stripsperimage =\n\t\t isUnspecified(tif, FIELD_ROWSPERSTRIP) ?\n\t\t\ttd->td_samplesperpixel : TIFFNumberOfStrips(tif);\n\ttd->td_nstrips = td->td_stripsperimage;\n\tif (td->td_planarconfig == PLANARCONFIG_SEPARATE)\n\t\ttd->td_stripsperimage /= td->td_samplesperpixel;\n\ttd->td_stripoffset = (uint64 *)\n\t _TIFFmalloc(td->td_nstrips * sizeof (uint64));\n\ttd->td_stripbytecount = (uint64 *)\n\t _TIFFmalloc(td->td_nstrips * sizeof (uint64));\n\tif (td->td_stripoffset == NULL || td->td_stripbytecount == NULL)\n\t\treturn (0);\n\t_TIFFmemset(td->td_stripoffset, 0, td->td_nstrips*sizeof (uint64));\n\t_TIFFmemset(td->td_stripbytecount, 0, td->td_nstrips*sizeof (uint64));\n\tTIFFSetFieldBit(tif, FIELD_STRIPOFFSETS);\n\tTIFFSetFieldBit(tif, FIELD_STRIPBYTECOUNTS);\n\treturn (1);\n}', 'uint32\nTIFFNumberOfTiles(TIFF* tif)\n{\n\tTIFFDirectory *td = &tif->tif_dir;\n\tuint32 dx = td->td_tilewidth;\n\tuint32 dy = td->td_tilelength;\n\tuint32 dz = td->td_tiledepth;\n\tuint32 ntiles;\n\tif (dx == (uint32) -1)\n\t\tdx = td->td_imagewidth;\n\tif (dy == (uint32) -1)\n\t\tdy = td->td_imagelength;\n\tif (dz == (uint32) -1)\n\t\tdz = td->td_imagedepth;\n\tntiles = (dx == 0 || dy == 0 || dz == 0) ? 0 :\n\t multiply_32(tif, multiply_32(tif, TIFFhowmany_32(td->td_imagewidth, dx),\n\t TIFFhowmany_32(td->td_imagelength, dy),\n\t "TIFFNumberOfTiles"),\n\t TIFFhowmany_32(td->td_imagedepth, dz), "TIFFNumberOfTiles");\n\tif (td->td_planarconfig == PLANARCONFIG_SEPARATE)\n\t\tntiles = multiply_32(tif, ntiles, td->td_samplesperpixel,\n\t\t "TIFFNumberOfTiles");\n\treturn (ntiles);\n}'] |
26,933 | 0 | https://gitlab.com/libtiff/libtiff/blob/3adc33842b7533066daea2516741832edc44d5fd/libtiff/tif_tile.c/#L156 | uint32
TIFFNumberOfTiles(TIFF* tif)
{
TIFFDirectory *td = &tif->tif_dir;
uint32 dx = td->td_tilewidth;
uint32 dy = td->td_tilelength;
uint32 dz = td->td_tiledepth;
uint32 ntiles;
if (dx == (uint32) -1)
dx = td->td_imagewidth;
if (dy == (uint32) -1)
dy = td->td_imagelength;
if (dz == (uint32) -1)
dz = td->td_imagedepth;
ntiles = (dx == 0 || dy == 0 || dz == 0) ? 0 :
multiply_32(tif, multiply_32(tif, TIFFhowmany_32(td->td_imagewidth, dx),
TIFFhowmany_32(td->td_imagelength, dy),
"TIFFNumberOfTiles"),
TIFFhowmany_32(td->td_imagedepth, dz), "TIFFNumberOfTiles");
if (td->td_planarconfig == PLANARCONFIG_SEPARATE)
ntiles = multiply_32(tif, ntiles, td->td_samplesperpixel,
"TIFFNumberOfTiles");
return (ntiles);
} | ['static TIFF* openSrcImage (char **imageSpec)\n{\n\tTIFF *tif;\n\tchar *fn = *imageSpec;\n\t*imageSpec = strchr (fn, comma);\n\tif (*imageSpec) {\n\t\t**imageSpec = \'\\0\';\n\t\ttif = TIFFOpen (fn, "r");\n\t\tif (!(*imageSpec)[1]) {*imageSpec = NULL; return tif;}\n\t\tif (tif) {\n\t\t\t**imageSpec = comma;\n\t\t\tif (!nextSrcImage(tif, imageSpec)) {\n\t\t\t\tTIFFClose (tif);\n\t\t\t\ttif = NULL;\n\t\t\t}\n\t\t}\n\t}else\n\t\ttif = TIFFOpen (fn, "r");\n\treturn tif;\n}', 'static int nextSrcImage (TIFF *tif, char **imageSpec)\n{\n\tif (**imageSpec == comma) {\n\t\tchar *start = *imageSpec + 1;\n\t\ttdir_t nextImage = (tdir_t)strtol(start, imageSpec, 0);\n\t\tif (start == *imageSpec) nextImage = TIFFCurrentDirectory (tif);\n\t\tif (**imageSpec)\n\t\t{\n\t\t\tif (**imageSpec == comma) {\n\t\t\t\tif ((*imageSpec)[1] == \'\\0\') *imageSpec = NULL;\n\t\t\t}else{\n\t\t\t\tfprintf (stderr,\n\t\t\t\t "Expected a %c separated image # list after %s\\n",\n\t\t\t\t comma, TIFFFileName (tif));\n\t\t\t\texit (-4);\n\t\t\t}\n\t\t}\n\t\tif (TIFFSetDirectory (tif, nextImage)) return 1;\n\t\tfprintf (stderr, "%s%c%d not found!\\n",\n\t\t TIFFFileName(tif), comma, (int) nextImage);\n\t}\n\treturn 0;\n}', 'int\nTIFFSetDirectory(TIFF* tif, uint16 dirn)\n{\n\tuint64 nextdir;\n\tuint16 n;\n\tif (!(tif->tif_flags&TIFF_BIGTIFF))\n\t\tnextdir = tif->tif_header.classic.tiff_diroff;\n\telse\n\t\tnextdir = tif->tif_header.big.tiff_diroff;\n\tfor (n = dirn; n > 0 && nextdir != 0; n--)\n\t\tif (!TIFFAdvanceDirectory(tif, &nextdir, NULL))\n\t\t\treturn (0);\n\ttif->tif_nextdiroff = nextdir;\n\ttif->tif_curdir = (dirn - n) - 1;\n\ttif->tif_dirnumber = 0;\n\treturn (TIFFReadDirectory(tif));\n}', 'int\nTIFFReadDirectory(TIFF* tif)\n{\n\tstatic const char module[] = "TIFFReadDirectory";\n\tTIFFDirEntry* dir;\n\tuint16 dircount;\n\tTIFFDirEntry* dp;\n\tuint16 di;\n\tconst TIFFField* fip;\n\tuint32 fii;\n toff_t nextdiroff;\n\ttif->tif_diroff=tif->tif_nextdiroff;\n\tif (!TIFFCheckDirOffset(tif,tif->tif_nextdiroff))\n\t\treturn 0;\n\t(*tif->tif_cleanup)(tif);\n\ttif->tif_curdir++;\n nextdiroff = tif->tif_nextdiroff;\n\tdircount=TIFFFetchDirectory(tif,nextdiroff,&dir,&tif->tif_nextdiroff);\n\tif (!dircount)\n\t{\n\t\tTIFFErrorExt(tif->tif_clientdata,module,\n\t\t "Failed to read directory at offset " TIFF_UINT64_FORMAT,nextdiroff);\n\t\treturn 0;\n\t}\n\tTIFFReadDirectoryCheckOrder(tif,dir,dircount);\n\ttif->tif_flags &= ~TIFF_BEENWRITING;\n\ttif->tif_flags &= ~TIFF_BUF4WRITE;\n\tTIFFFreeDirectory(tif);\n\tTIFFDefaultDirectory(tif);\n\tTIFFSetField(tif,TIFFTAG_PLANARCONFIG,PLANARCONFIG_CONTIG);\n\tdp=TIFFReadDirectoryFindEntry(tif,dir,dircount,TIFFTAG_SAMPLESPERPIXEL);\n\tif (dp)\n\t{\n\t\tif (!TIFFFetchNormalTag(tif,dp,0))\n\t\t\tgoto bad;\n\t\tdp->tdir_tag=IGNORE;\n\t}\n\tdp=TIFFReadDirectoryFindEntry(tif,dir,dircount,TIFFTAG_COMPRESSION);\n\tif (dp)\n\t{\n\t\tuint16 value;\n\t\tenum TIFFReadDirEntryErr err;\n\t\terr=TIFFReadDirEntryShort(tif,dp,&value);\n\t\tif (err==TIFFReadDirEntryErrCount)\n\t\t\terr=TIFFReadDirEntryPersampleShort(tif,dp,&value);\n\t\tif (err!=TIFFReadDirEntryErrOk)\n\t\t{\n\t\t\tTIFFReadDirEntryOutputErr(tif,err,module,"Compression",0);\n\t\t\tgoto bad;\n\t\t}\n\t\tif (!TIFFSetField(tif,TIFFTAG_COMPRESSION,value))\n\t\t\tgoto bad;\n\t\tdp->tdir_tag=IGNORE;\n\t}\n\telse\n\t{\n\t\tif (!TIFFSetField(tif,TIFFTAG_COMPRESSION,COMPRESSION_NONE))\n\t\t\tgoto bad;\n\t}\n\tfor (di=0, dp=dir; di<dircount; di++, dp++)\n\t{\n\t\tif (dp->tdir_tag!=IGNORE)\n\t\t{\n\t\t\tTIFFReadDirectoryFindFieldInfo(tif,dp->tdir_tag,&fii);\n\t\t\tif (fii == FAILED_FII)\n\t\t\t{\n\t\t\t\tTIFFWarningExt(tif->tif_clientdata, module,\n\t\t\t\t "Unknown field with tag %d (0x%x) encountered",\n\t\t\t\t dp->tdir_tag,dp->tdir_tag);\n\t\t\t\tif (!_TIFFMergeFields(tif,\n\t\t\t\t\t_TIFFCreateAnonField(tif,\n\t\t\t\t\t\tdp->tdir_tag,\n\t\t\t\t\t\t(TIFFDataType) dp->tdir_type),\n\t\t\t\t\t1)) {\n\t\t\t\t\tTIFFWarningExt(tif->tif_clientdata,\n\t\t\t\t\t module,\n\t\t\t\t\t "Registering anonymous field with tag %d (0x%x) failed",\n\t\t\t\t\t dp->tdir_tag,\n\t\t\t\t\t dp->tdir_tag);\n\t\t\t\t\tdp->tdir_tag=IGNORE;\n\t\t\t\t} else {\n\t\t\t\t\tTIFFReadDirectoryFindFieldInfo(tif,dp->tdir_tag,&fii);\n\t\t\t\t\tassert(fii != FAILED_FII);\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t\tif (dp->tdir_tag!=IGNORE)\n\t\t{\n\t\t\tfip=tif->tif_fields[fii];\n\t\t\tif (fip->field_bit==FIELD_IGNORE)\n\t\t\t\tdp->tdir_tag=IGNORE;\n\t\t\telse\n\t\t\t{\n\t\t\t\tswitch (dp->tdir_tag)\n\t\t\t\t{\n\t\t\t\t\tcase TIFFTAG_STRIPOFFSETS:\n\t\t\t\t\tcase TIFFTAG_STRIPBYTECOUNTS:\n\t\t\t\t\tcase TIFFTAG_TILEOFFSETS:\n\t\t\t\t\tcase TIFFTAG_TILEBYTECOUNTS:\n\t\t\t\t\t\tTIFFSetFieldBit(tif,fip->field_bit);\n\t\t\t\t\t\tbreak;\n\t\t\t\t\tcase TIFFTAG_IMAGEWIDTH:\n\t\t\t\t\tcase TIFFTAG_IMAGELENGTH:\n\t\t\t\t\tcase TIFFTAG_IMAGEDEPTH:\n\t\t\t\t\tcase TIFFTAG_TILELENGTH:\n\t\t\t\t\tcase TIFFTAG_TILEWIDTH:\n\t\t\t\t\tcase TIFFTAG_TILEDEPTH:\n\t\t\t\t\tcase TIFFTAG_PLANARCONFIG:\n\t\t\t\t\tcase TIFFTAG_ROWSPERSTRIP:\n\t\t\t\t\tcase TIFFTAG_EXTRASAMPLES:\n\t\t\t\t\t\tif (!TIFFFetchNormalTag(tif,dp,0))\n\t\t\t\t\t\t\tgoto bad;\n\t\t\t\t\t\tdp->tdir_tag=IGNORE;\n\t\t\t\t\t\tbreak;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t}\n\tif ((tif->tif_dir.td_compression==COMPRESSION_OJPEG)&&\n\t (tif->tif_dir.td_planarconfig==PLANARCONFIG_SEPARATE))\n\t{\n\t\tdp=TIFFReadDirectoryFindEntry(tif,dir,dircount,TIFFTAG_STRIPOFFSETS);\n\t\tif ((dp!=0)&&(dp->tdir_count==1))\n\t\t{\n\t\t\tdp=TIFFReadDirectoryFindEntry(tif,dir,dircount,\n\t\t\t TIFFTAG_STRIPBYTECOUNTS);\n\t\t\tif ((dp!=0)&&(dp->tdir_count==1))\n\t\t\t{\n\t\t\t\ttif->tif_dir.td_planarconfig=PLANARCONFIG_CONTIG;\n\t\t\t\tTIFFWarningExt(tif->tif_clientdata,module,\n\t\t\t\t "Planarconfig tag value assumed incorrect, "\n\t\t\t\t "assuming data is contig instead of chunky");\n\t\t\t}\n\t\t}\n\t}\n\tif (!TIFFFieldSet(tif,FIELD_IMAGEDIMENSIONS))\n\t{\n\t\tMissingRequired(tif,"ImageLength");\n\t\tgoto bad;\n\t}\n\tif (!TIFFFieldSet(tif, FIELD_TILEDIMENSIONS)) {\n\t\ttif->tif_dir.td_nstrips = TIFFNumberOfStrips(tif);\n\t\ttif->tif_dir.td_tilewidth = tif->tif_dir.td_imagewidth;\n\t\ttif->tif_dir.td_tilelength = tif->tif_dir.td_rowsperstrip;\n\t\ttif->tif_dir.td_tiledepth = tif->tif_dir.td_imagedepth;\n\t\ttif->tif_flags &= ~TIFF_ISTILED;\n\t} else {\n\t\ttif->tif_dir.td_nstrips = TIFFNumberOfTiles(tif);\n\t\ttif->tif_flags |= TIFF_ISTILED;\n\t}\n\tif (!tif->tif_dir.td_nstrips) {\n\t\tTIFFErrorExt(tif->tif_clientdata, module,\n\t\t "Cannot handle zero number of %s",\n\t\t isTiled(tif) ? "tiles" : "strips");\n\t\tgoto bad;\n\t}\n\ttif->tif_dir.td_stripsperimage = tif->tif_dir.td_nstrips;\n\tif (tif->tif_dir.td_planarconfig == PLANARCONFIG_SEPARATE)\n\t\ttif->tif_dir.td_stripsperimage /= tif->tif_dir.td_samplesperpixel;\n\tif (!TIFFFieldSet(tif, FIELD_STRIPOFFSETS)) {\n\t\tif ((tif->tif_dir.td_compression==COMPRESSION_OJPEG) &&\n\t\t (isTiled(tif)==0) &&\n\t\t (tif->tif_dir.td_nstrips==1)) {\n\t\t\tTIFFSetFieldBit(tif, FIELD_STRIPOFFSETS);\n\t\t} else {\n\t\t\tMissingRequired(tif,\n\t\t\t\tisTiled(tif) ? "TileOffsets" : "StripOffsets");\n\t\t\tgoto bad;\n\t\t}\n\t}\n\tfor (di=0, dp=dir; di<dircount; di++, dp++)\n\t{\n\t\tswitch (dp->tdir_tag)\n\t\t{\n\t\t\tcase IGNORE:\n\t\t\t\tbreak;\n\t\t\tcase TIFFTAG_MINSAMPLEVALUE:\n\t\t\tcase TIFFTAG_MAXSAMPLEVALUE:\n\t\t\tcase TIFFTAG_BITSPERSAMPLE:\n\t\t\tcase TIFFTAG_DATATYPE:\n\t\t\tcase TIFFTAG_SAMPLEFORMAT:\n\t\t\t\t{\n\t\t\t\t\tuint16 value;\n\t\t\t\t\tenum TIFFReadDirEntryErr err;\n\t\t\t\t\terr=TIFFReadDirEntryShort(tif,dp,&value);\n\t\t\t\t\tif (err==TIFFReadDirEntryErrCount)\n\t\t\t\t\t\terr=TIFFReadDirEntryPersampleShort(tif,dp,&value);\n\t\t\t\t\tif (err!=TIFFReadDirEntryErrOk)\n\t\t\t\t\t{\n\t\t\t\t\t\tTIFFReadDirEntryOutputErr(tif,err,module,TIFFFieldWithTag(tif,dp->tdir_tag)->field_name,0);\n\t\t\t\t\t\tgoto bad;\n\t\t\t\t\t}\n\t\t\t\t\tif (!TIFFSetField(tif,dp->tdir_tag,value))\n\t\t\t\t\t\tgoto bad;\n\t\t\t\t}\n\t\t\t\tbreak;\n\t\t\tcase TIFFTAG_SMINSAMPLEVALUE:\n\t\t\tcase TIFFTAG_SMAXSAMPLEVALUE:\n\t\t\t\t{\n\t\t\t\t\tdouble value;\n\t\t\t\t\tenum TIFFReadDirEntryErr err;\n\t\t\t\t\terr=TIFFReadDirEntryPersampleDouble(tif,dp,&value);\n\t\t\t\t\tif (err!=TIFFReadDirEntryErrOk)\n\t\t\t\t\t{\n\t\t\t\t\t\tTIFFReadDirEntryOutputErr(tif,err,module,TIFFFieldWithTag(tif,dp->tdir_tag)->field_name,0);\n\t\t\t\t\t\tgoto bad;\n\t\t\t\t\t}\n\t\t\t\t\tif (!TIFFSetField(tif,dp->tdir_tag,value))\n\t\t\t\t\t\tgoto bad;\n\t\t\t\t}\n\t\t\t\tbreak;\n\t\t\tcase TIFFTAG_STRIPOFFSETS:\n\t\t\tcase TIFFTAG_TILEOFFSETS:\n\t\t\t\tif (!TIFFFetchStripThing(tif,dp,tif->tif_dir.td_nstrips,&tif->tif_dir.td_stripoffset))\n\t\t\t\t\tgoto bad;\n\t\t\t\tbreak;\n\t\t\tcase TIFFTAG_STRIPBYTECOUNTS:\n\t\t\tcase TIFFTAG_TILEBYTECOUNTS:\n\t\t\t\tif (!TIFFFetchStripThing(tif,dp,tif->tif_dir.td_nstrips,&tif->tif_dir.td_stripbytecount))\n\t\t\t\t\tgoto bad;\n\t\t\t\tbreak;\n\t\t\tcase TIFFTAG_COLORMAP:\n\t\t\tcase TIFFTAG_TRANSFERFUNCTION:\n\t\t\t\t{\n\t\t\t\t\tenum TIFFReadDirEntryErr err;\n\t\t\t\t\tuint32 countpersample;\n\t\t\t\t\tuint32 countrequired;\n\t\t\t\t\tuint32 incrementpersample;\n\t\t\t\t\tuint16* value;\n\t\t\t\t\tcountpersample=(1L<<tif->tif_dir.td_bitspersample);\n\t\t\t\t\tif ((dp->tdir_tag==TIFFTAG_TRANSFERFUNCTION)&&(dp->tdir_count==(uint64)countpersample))\n\t\t\t\t\t{\n\t\t\t\t\t\tcountrequired=countpersample;\n\t\t\t\t\t\tincrementpersample=0;\n\t\t\t\t\t}\n\t\t\t\t\telse\n\t\t\t\t\t{\n\t\t\t\t\t\tcountrequired=3*countpersample;\n\t\t\t\t\t\tincrementpersample=countpersample;\n\t\t\t\t\t}\n\t\t\t\t\tif (dp->tdir_count!=(uint64)countrequired)\n\t\t\t\t\t\terr=TIFFReadDirEntryErrCount;\n\t\t\t\t\telse\n\t\t\t\t\t\terr=TIFFReadDirEntryShortArray(tif,dp,&value);\n\t\t\t\t\tif (err!=TIFFReadDirEntryErrOk)\n\t\t\t\t\t\tTIFFReadDirEntryOutputErr(tif,err,module,TIFFFieldWithTag(tif,dp->tdir_tag)->field_name,1);\n\t\t\t\t\telse\n\t\t\t\t\t{\n\t\t\t\t\t\tTIFFSetField(tif,dp->tdir_tag,value,value+incrementpersample,value+2*incrementpersample);\n\t\t\t\t\t\t_TIFFfree(value);\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t\tbreak;\n\t\t\tcase TIFFTAG_OSUBFILETYPE:\n\t\t\t\t{\n\t\t\t\t\tuint16 valueo;\n\t\t\t\t\tuint32 value;\n\t\t\t\t\tif (TIFFReadDirEntryShort(tif,dp,&valueo)==TIFFReadDirEntryErrOk)\n\t\t\t\t\t{\n\t\t\t\t\t\tswitch (valueo)\n\t\t\t\t\t\t{\n\t\t\t\t\t\t\tcase OFILETYPE_REDUCEDIMAGE: value=FILETYPE_REDUCEDIMAGE; break;\n\t\t\t\t\t\t\tcase OFILETYPE_PAGE: value=FILETYPE_PAGE; break;\n\t\t\t\t\t\t\tdefault: value=0; break;\n\t\t\t\t\t\t}\n\t\t\t\t\t\tif (value!=0)\n\t\t\t\t\t\t\tTIFFSetField(tif,TIFFTAG_SUBFILETYPE,value);\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t\tbreak;\n\t\t\tdefault:\n\t\t\t\t(void) TIFFFetchNormalTag(tif, dp, TRUE);\n\t\t\t\tbreak;\n\t\t}\n\t}\n\tif (tif->tif_dir.td_compression==COMPRESSION_OJPEG)\n\t{\n\t\tif (!TIFFFieldSet(tif,FIELD_PHOTOMETRIC))\n\t\t{\n\t\t\tTIFFWarningExt(tif->tif_clientdata, module,\n\t\t\t "Photometric tag is missing, assuming data is YCbCr");\n\t\t\tif (!TIFFSetField(tif,TIFFTAG_PHOTOMETRIC,PHOTOMETRIC_YCBCR))\n\t\t\t\tgoto bad;\n\t\t}\n\t\telse if (tif->tif_dir.td_photometric==PHOTOMETRIC_RGB)\n\t\t{\n\t\t\ttif->tif_dir.td_photometric=PHOTOMETRIC_YCBCR;\n\t\t\tTIFFWarningExt(tif->tif_clientdata, module,\n\t\t\t "Photometric tag value assumed incorrect, "\n\t\t\t "assuming data is YCbCr instead of RGB");\n\t\t}\n\t\tif (!TIFFFieldSet(tif,FIELD_BITSPERSAMPLE))\n\t\t{\n\t\t\tTIFFWarningExt(tif->tif_clientdata,module,\n\t\t\t "BitsPerSample tag is missing, assuming 8 bits per sample");\n\t\t\tif (!TIFFSetField(tif,TIFFTAG_BITSPERSAMPLE,8))\n\t\t\t\tgoto bad;\n\t\t}\n\t\tif (!TIFFFieldSet(tif,FIELD_SAMPLESPERPIXEL))\n\t\t{\n\t\t\tif ((tif->tif_dir.td_photometric==PHOTOMETRIC_RGB)\n\t\t\t || (tif->tif_dir.td_photometric==PHOTOMETRIC_YCBCR))\n\t\t\t{\n\t\t\t\tTIFFWarningExt(tif->tif_clientdata,module,\n\t\t\t\t "SamplesPerPixel tag is missing, "\n\t\t\t\t "assuming correct SamplesPerPixel value is 3");\n\t\t\t\tif (!TIFFSetField(tif,TIFFTAG_SAMPLESPERPIXEL,3))\n\t\t\t\t\tgoto bad;\n\t\t\t}\n\t\t\telse if ((tif->tif_dir.td_photometric==PHOTOMETRIC_MINISWHITE)\n\t\t\t\t || (tif->tif_dir.td_photometric==PHOTOMETRIC_MINISBLACK))\n\t\t\t{\n\t\t\t\tTIFFWarningExt(tif->tif_clientdata,module,\n\t\t\t\t "SamplesPerPixel tag is missing, "\n\t\t\t\t "assuming correct SamplesPerPixel value is 1");\n\t\t\t\tif (!TIFFSetField(tif,TIFFTAG_SAMPLESPERPIXEL,1))\n\t\t\t\t\tgoto bad;\n\t\t\t}\n\t\t}\n\t}\n\tif (tif->tif_dir.td_photometric == PHOTOMETRIC_PALETTE &&\n\t !TIFFFieldSet(tif, FIELD_COLORMAP)) {\n\t\tMissingRequired(tif, "Colormap");\n\t\tgoto bad;\n\t}\n\tif (tif->tif_dir.td_compression!=COMPRESSION_OJPEG)\n\t{\n\t\tif (!TIFFFieldSet(tif, FIELD_STRIPBYTECOUNTS)) {\n\t\t\tif ((tif->tif_dir.td_planarconfig == PLANARCONFIG_CONTIG &&\n\t\t\t tif->tif_dir.td_nstrips > 1) ||\n\t\t\t (tif->tif_dir.td_planarconfig == PLANARCONFIG_SEPARATE &&\n\t\t\t tif->tif_dir.td_nstrips != (uint32)tif->tif_dir.td_samplesperpixel)) {\n\t\t\t MissingRequired(tif, "StripByteCounts");\n\t\t\t goto bad;\n\t\t\t}\n\t\t\tTIFFWarningExt(tif->tif_clientdata, module,\n\t\t\t\t"TIFF directory is missing required "\n\t\t\t\t"\\"%s\\" field, calculating from imagelength",\n\t\t\t\tTIFFFieldWithTag(tif,TIFFTAG_STRIPBYTECOUNTS)->field_name);\n\t\t\tif (EstimateStripByteCounts(tif, dir, dircount) < 0)\n\t\t\t goto bad;\n\t\t#define\tBYTECOUNTLOOKSBAD \\\n\t\t ( (tif->tif_dir.td_stripbytecount[0] == 0 && tif->tif_dir.td_stripoffset[0] != 0) || \\\n\t\t (tif->tif_dir.td_compression == COMPRESSION_NONE && \\\n\t\t tif->tif_dir.td_stripbytecount[0] > TIFFGetFileSize(tif) - tif->tif_dir.td_stripoffset[0]) || \\\n\t\t (tif->tif_mode == O_RDONLY && \\\n\t\t tif->tif_dir.td_compression == COMPRESSION_NONE && \\\n\t\t tif->tif_dir.td_stripbytecount[0] < TIFFScanlineSize64(tif) * tif->tif_dir.td_imagelength) )\n\t\t} else if (tif->tif_dir.td_nstrips == 1\n\t\t\t && tif->tif_dir.td_stripoffset[0] != 0\n\t\t\t && BYTECOUNTLOOKSBAD) {\n\t\t\tTIFFWarningExt(tif->tif_clientdata, module,\n\t\t\t "Bogus \\"%s\\" field, ignoring and calculating from imagelength",\n\t\t\t TIFFFieldWithTag(tif,TIFFTAG_STRIPBYTECOUNTS)->field_name);\n\t\t\tif(EstimateStripByteCounts(tif, dir, dircount) < 0)\n\t\t\t goto bad;\n\t\t} else if (tif->tif_dir.td_planarconfig == PLANARCONFIG_CONTIG\n\t\t\t && tif->tif_dir.td_nstrips > 2\n\t\t\t && tif->tif_dir.td_compression == COMPRESSION_NONE\n\t\t\t && tif->tif_dir.td_stripbytecount[0] != tif->tif_dir.td_stripbytecount[1]\n\t\t\t && tif->tif_dir.td_stripbytecount[0] != 0\n\t\t\t && tif->tif_dir.td_stripbytecount[1] != 0 ) {\n\t\t\tTIFFWarningExt(tif->tif_clientdata, module,\n\t\t\t "Wrong \\"%s\\" field, ignoring and calculating from imagelength",\n\t\t\t TIFFFieldWithTag(tif,TIFFTAG_STRIPBYTECOUNTS)->field_name);\n\t\t\tif (EstimateStripByteCounts(tif, dir, dircount) < 0)\n\t\t\t goto bad;\n\t\t}\n\t}\n\tif (dir)\n\t{\n\t\t_TIFFfree(dir);\n\t\tdir=NULL;\n\t}\n\tif (!TIFFFieldSet(tif, FIELD_MAXSAMPLEVALUE))\n\t{\n\t\tif (tif->tif_dir.td_bitspersample>=16)\n\t\t\ttif->tif_dir.td_maxsamplevalue=0xFFFF;\n\t\telse\n\t\t\ttif->tif_dir.td_maxsamplevalue = (uint16)((1L<<tif->tif_dir.td_bitspersample)-1);\n\t}\n\tif (tif->tif_dir.td_nstrips > 1) {\n\t\tuint32 strip;\n\t\ttif->tif_dir.td_stripbytecountsorted = 1;\n\t\tfor (strip = 1; strip < tif->tif_dir.td_nstrips; strip++) {\n\t\t\tif (tif->tif_dir.td_stripoffset[strip - 1] >\n\t\t\t tif->tif_dir.td_stripoffset[strip]) {\n\t\t\t\ttif->tif_dir.td_stripbytecountsorted = 0;\n\t\t\t\tbreak;\n\t\t\t}\n\t\t}\n\t}\n\t(*tif->tif_fixuptags)(tif);\n\tif ((tif->tif_dir.td_planarconfig==PLANARCONFIG_CONTIG)&&\n\t (tif->tif_dir.td_nstrips==1)&&\n\t (tif->tif_dir.td_compression==COMPRESSION_NONE)&&\n\t ((tif->tif_flags&(TIFF_STRIPCHOP|TIFF_ISTILED))==TIFF_STRIPCHOP))\n\t\tChopUpSingleUncompressedStrip(tif);\n\ttif->tif_flags &= ~TIFF_DIRTYDIRECT;\n\ttif->tif_flags &= ~TIFF_DIRTYSTRIP;\n\ttif->tif_row = (uint32) -1;\n\ttif->tif_curstrip = (uint32) -1;\n\ttif->tif_col = (uint32) -1;\n\ttif->tif_curtile = (uint32) -1;\n\ttif->tif_tilesize = (tmsize_t) -1;\n\ttif->tif_scanlinesize = TIFFScanlineSize(tif);\n\tif (!tif->tif_scanlinesize) {\n\t\tTIFFErrorExt(tif->tif_clientdata, module,\n\t\t "Cannot handle zero scanline size");\n\t\treturn (0);\n\t}\n\tif (isTiled(tif)) {\n\t\ttif->tif_tilesize = TIFFTileSize(tif);\n\t\tif (!tif->tif_tilesize) {\n\t\t\tTIFFErrorExt(tif->tif_clientdata, module,\n\t\t\t "Cannot handle zero tile size");\n\t\t\treturn (0);\n\t\t}\n\t} else {\n\t\tif (!TIFFStripSize(tif)) {\n\t\t\tTIFFErrorExt(tif->tif_clientdata, module,\n\t\t\t "Cannot handle zero strip size");\n\t\t\treturn (0);\n\t\t}\n\t}\n\treturn (1);\nbad:\n\tif (dir)\n\t\t_TIFFfree(dir);\n\treturn (0);\n}', 'uint32\nTIFFNumberOfTiles(TIFF* tif)\n{\n\tTIFFDirectory *td = &tif->tif_dir;\n\tuint32 dx = td->td_tilewidth;\n\tuint32 dy = td->td_tilelength;\n\tuint32 dz = td->td_tiledepth;\n\tuint32 ntiles;\n\tif (dx == (uint32) -1)\n\t\tdx = td->td_imagewidth;\n\tif (dy == (uint32) -1)\n\t\tdy = td->td_imagelength;\n\tif (dz == (uint32) -1)\n\t\tdz = td->td_imagedepth;\n\tntiles = (dx == 0 || dy == 0 || dz == 0) ? 0 :\n\t multiply_32(tif, multiply_32(tif, TIFFhowmany_32(td->td_imagewidth, dx),\n\t TIFFhowmany_32(td->td_imagelength, dy),\n\t "TIFFNumberOfTiles"),\n\t TIFFhowmany_32(td->td_imagedepth, dz), "TIFFNumberOfTiles");\n\tif (td->td_planarconfig == PLANARCONFIG_SEPARATE)\n\t\tntiles = multiply_32(tif, ntiles, td->td_samplesperpixel,\n\t\t "TIFFNumberOfTiles");\n\treturn (ntiles);\n}'] |
26,934 | 0 | https://github.com/openssl/openssl/blob/1fac96e4d6484a517f2ebe99b72016726391723c/crypto/bn/bn_lib.c/#L448 | BIGNUM *bn_expand2(BIGNUM *b, int words)
{
BN_ULONG *A,*a;
const BN_ULONG *B;
int i;
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);
}
#if 1
B=b->d;
if (B != NULL)
{
#if 0
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:
;
}
#else
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: ;
}
#endif
Free(b->d);
}
b->d=a;
b->max=words;
A= &(b->d[b->top]);
for (i=(b->max - b->top)>>3; i>0; i--,A+=8)
{
A[0]=0; A[1]=0; A[2]=0; A[3]=0;
A[4]=0; A[5]=0; A[6]=0; A[7]=0;
}
for (i=(b->max - b->top)&7; i>0; i--,A++)
A[0]=0;
#else
memset(A,0,sizeof(BN_ULONG)*(words+1));
memcpy(A,b->d,sizeof(b->d[0])*b->top);
b->d=a;
b->max=words;
#endif
}
return(b);
} | ["int BN_hex2bn(BIGNUM **bn, 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}", 'BIGNUM *bn_expand2(BIGNUM *b, int words)\n\t{\n\tBN_ULONG *A,*a;\n\tconst BN_ULONG *B;\n\tint i;\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}\n#if 1\n\t\tB=b->d;\n\t\tif (B != NULL)\n\t\t\t{\n#if 0\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#else\n\t\t\tfor (i=b->top>>2; i>0; i--,A+=4,B+=4)\n\t\t\t\t{\n\t\t\t\tBN_ULONG a0,a1,a2,a3;\n\t\t\t\ta0=B[0]; a1=B[1]; a2=B[2]; a3=B[3];\n\t\t\t\tA[0]=a0; A[1]=a1; A[2]=a2; A[3]=a3;\n\t\t\t\t}\n\t\t\tswitch (b->top&3)\n\t\t\t\t{\n\t\t\t\tcase 3:\tA[2]=B[2];\n\t\t\t\tcase 2:\tA[1]=B[1];\n\t\t\t\tcase 1:\tA[0]=B[0];\n\t\t\t\tcase 0:\t;\n\t\t\t\t}\n#endif\n\t\t\tFree(b->d);\n\t\t\t}\n\t\tb->d=a;\n\t\tb->max=words;\n\t\tA= &(b->d[b->top]);\n\t\tfor (i=(b->max - b->top)>>3; i>0; i--,A+=8)\n\t\t\t{\n\t\t\tA[0]=0; A[1]=0; A[2]=0; A[3]=0;\n\t\t\tA[4]=0; A[5]=0; A[6]=0; A[7]=0;\n\t\t\t}\n\t\tfor (i=(b->max - b->top)&7; i>0; i--,A++)\n\t\t\tA[0]=0;\n#else\n\t\t\tmemset(A,0,sizeof(BN_ULONG)*(words+1));\n\t\t\tmemcpy(A,b->d,sizeof(b->d[0])*b->top);\n\t\t\tb->d=a;\n\t\t\tb->max=words;\n#endif\n\t\t}\n\treturn(b);\n\t}'] |
26,935 | 0 | https://github.com/openssl/openssl/blob/e7d961e994620dd5dee6d80794a07fb9de1bab66/ssl/packet_locl.h/#L36 | static ossl_inline void packet_forward(PACKET *pkt, size_t len)
{
pkt->curr += len;
pkt->remaining -= len;
} | ['static int tls_early_post_process_client_hello(SSL *s)\n{\n unsigned int j;\n int i, al = SSL_AD_INTERNAL_ERROR;\n int protverr;\n size_t loop;\n unsigned long id;\n#ifndef OPENSSL_NO_COMP\n SSL_COMP *comp = NULL;\n#endif\n const SSL_CIPHER *c;\n STACK_OF(SSL_CIPHER) *ciphers = NULL;\n STACK_OF(SSL_CIPHER) *scsvs = NULL;\n CLIENTHELLO_MSG *clienthello = s->clienthello;\n DOWNGRADE dgrd = DOWNGRADE_NONE;\n if (s->ctx->client_hello_cb != NULL) {\n switch (s->ctx->client_hello_cb(s, &al, s->ctx->client_hello_cb_arg)) {\n case SSL_CLIENT_HELLO_SUCCESS:\n break;\n case SSL_CLIENT_HELLO_RETRY:\n s->rwstate = SSL_CLIENT_HELLO_CB;\n return -1;\n case SSL_CLIENT_HELLO_ERROR:\n default:\n SSLfatal(s, al,\n SSL_F_TLS_EARLY_POST_PROCESS_CLIENT_HELLO,\n SSL_R_CALLBACK_FAILED);\n goto err;\n }\n }\n memcpy(s->s3->client_random, clienthello->random, SSL3_RANDOM_SIZE);\n if (clienthello->isv2) {\n if (clienthello->legacy_version == SSL2_VERSION\n || (clienthello->legacy_version & 0xff00)\n != (SSL3_VERSION_MAJOR << 8)) {\n SSLfatal(s, SSL_AD_PROTOCOL_VERSION,\n SSL_F_TLS_EARLY_POST_PROCESS_CLIENT_HELLO,\n SSL_R_UNKNOWN_PROTOCOL);\n goto err;\n }\n s->client_version = clienthello->legacy_version;\n }\n if (!SSL_IS_DTLS(s)) {\n protverr = ssl_choose_server_version(s, clienthello, &dgrd);\n } else if (s->method->version != DTLS_ANY_VERSION &&\n DTLS_VERSION_LT((int)clienthello->legacy_version, s->version)) {\n protverr = SSL_R_VERSION_TOO_LOW;\n } else {\n protverr = 0;\n }\n if (protverr) {\n if (SSL_IS_FIRST_HANDSHAKE(s)) {\n s->version = s->client_version = clienthello->legacy_version;\n }\n SSLfatal(s, SSL_AD_PROTOCOL_VERSION,\n SSL_F_TLS_EARLY_POST_PROCESS_CLIENT_HELLO, protverr);\n goto err;\n }\n if (SSL_IS_TLS13(s) && RECORD_LAYER_processed_read_pending(&s->rlayer)) {\n SSLfatal(s, SSL_AD_UNEXPECTED_MESSAGE,\n SSL_F_TLS_EARLY_POST_PROCESS_CLIENT_HELLO,\n SSL_R_NOT_ON_RECORD_BOUNDARY);\n goto err;\n }\n if (SSL_IS_DTLS(s)) {\n if (SSL_get_options(s) & SSL_OP_COOKIE_EXCHANGE) {\n if (s->ctx->app_verify_cookie_cb != NULL) {\n if (s->ctx->app_verify_cookie_cb(s, clienthello->dtls_cookie,\n clienthello->dtls_cookie_len) == 0) {\n SSLfatal(s, SSL_AD_HANDSHAKE_FAILURE,\n SSL_F_TLS_EARLY_POST_PROCESS_CLIENT_HELLO,\n SSL_R_COOKIE_MISMATCH);\n goto err;\n }\n } else if (s->d1->cookie_len != clienthello->dtls_cookie_len\n || memcmp(clienthello->dtls_cookie, s->d1->cookie,\n s->d1->cookie_len) != 0) {\n SSLfatal(s, SSL_AD_HANDSHAKE_FAILURE,\n SSL_F_TLS_EARLY_POST_PROCESS_CLIENT_HELLO,\n SSL_R_COOKIE_MISMATCH);\n goto err;\n }\n s->d1->cookie_verified = 1;\n }\n if (s->method->version == DTLS_ANY_VERSION) {\n protverr = ssl_choose_server_version(s, clienthello, &dgrd);\n if (protverr != 0) {\n s->version = s->client_version;\n SSLfatal(s, SSL_AD_PROTOCOL_VERSION,\n SSL_F_TLS_EARLY_POST_PROCESS_CLIENT_HELLO, protverr);\n goto err;\n }\n }\n }\n s->hit = 0;\n if (!ssl_cache_cipherlist(s, &clienthello->ciphersuites,\n clienthello->isv2) ||\n !bytes_to_cipher_list(s, &clienthello->ciphersuites, &ciphers, &scsvs,\n clienthello->isv2, 1)) {\n goto err;\n }\n s->s3->send_connection_binding = 0;\n if (scsvs != NULL) {\n for(i = 0; i < sk_SSL_CIPHER_num(scsvs); i++) {\n c = sk_SSL_CIPHER_value(scsvs, i);\n if (SSL_CIPHER_get_id(c) == SSL3_CK_SCSV) {\n if (s->renegotiate) {\n SSLfatal(s, SSL_AD_HANDSHAKE_FAILURE,\n SSL_F_TLS_EARLY_POST_PROCESS_CLIENT_HELLO,\n SSL_R_SCSV_RECEIVED_WHEN_RENEGOTIATING);\n goto err;\n }\n s->s3->send_connection_binding = 1;\n } else if (SSL_CIPHER_get_id(c) == SSL3_CK_FALLBACK_SCSV &&\n !ssl_check_version_downgrade(s)) {\n SSLfatal(s, SSL_AD_INAPPROPRIATE_FALLBACK,\n SSL_F_TLS_EARLY_POST_PROCESS_CLIENT_HELLO,\n SSL_R_INAPPROPRIATE_FALLBACK);\n goto err;\n }\n }\n }\n if (SSL_IS_TLS13(s)) {\n const SSL_CIPHER *cipher =\n ssl3_choose_cipher(s, ciphers, SSL_get_ciphers(s));\n if (cipher == NULL) {\n SSLfatal(s, SSL_AD_HANDSHAKE_FAILURE,\n SSL_F_TLS_EARLY_POST_PROCESS_CLIENT_HELLO,\n SSL_R_NO_SHARED_CIPHER);\n goto err;\n }\n if (s->hello_retry_request\n && (s->s3->tmp.new_cipher == NULL\n || s->s3->tmp.new_cipher->id != cipher->id)) {\n SSLfatal(s, SSL_AD_ILLEGAL_PARAMETER,\n SSL_F_TLS_EARLY_POST_PROCESS_CLIENT_HELLO,\n SSL_R_BAD_CIPHER);\n goto err;\n }\n s->s3->tmp.new_cipher = cipher;\n }\n if (!tls_parse_extension(s, TLSEXT_IDX_extended_master_secret,\n SSL_EXT_CLIENT_HELLO,\n clienthello->pre_proc_exts, NULL, 0)) {\n goto err;\n }\n if (clienthello->isv2 ||\n (s->new_session &&\n (s->options & SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION))) {\n if (!ssl_get_new_session(s, 1)) {\n goto err;\n }\n } else {\n i = ssl_get_prev_session(s, clienthello);\n if (i == 1) {\n s->hit = 1;\n } else if (i == -1) {\n goto err;\n } else {\n if (!ssl_get_new_session(s, 1)) {\n goto err;\n }\n }\n }\n if (!SSL_IS_TLS13(s) && s->hit) {\n j = 0;\n id = s->session->cipher->id;\n#ifdef CIPHER_DEBUG\n fprintf(stderr, "client sent %d ciphers\\n", sk_SSL_CIPHER_num(ciphers));\n#endif\n for (i = 0; i < sk_SSL_CIPHER_num(ciphers); i++) {\n c = sk_SSL_CIPHER_value(ciphers, i);\n#ifdef CIPHER_DEBUG\n fprintf(stderr, "client [%2d of %2d]:%s\\n",\n i, sk_SSL_CIPHER_num(ciphers), SSL_CIPHER_get_name(c));\n#endif\n if (c->id == id) {\n j = 1;\n break;\n }\n }\n if (j == 0) {\n SSLfatal(s, SSL_AD_ILLEGAL_PARAMETER,\n SSL_F_TLS_EARLY_POST_PROCESS_CLIENT_HELLO,\n SSL_R_REQUIRED_CIPHER_MISSING);\n goto err;\n }\n }\n for (loop = 0; loop < clienthello->compressions_len; loop++) {\n if (clienthello->compressions[loop] == 0)\n break;\n }\n if (loop >= clienthello->compressions_len) {\n SSLfatal(s, SSL_AD_DECODE_ERROR,\n SSL_F_TLS_EARLY_POST_PROCESS_CLIENT_HELLO,\n SSL_R_NO_COMPRESSION_SPECIFIED);\n goto err;\n }\n#ifndef OPENSSL_NO_EC\n if (s->options & SSL_OP_SAFARI_ECDHE_ECDSA_BUG)\n ssl_check_for_safari(s, clienthello);\n#endif\n if (!tls_parse_all_extensions(s, SSL_EXT_CLIENT_HELLO,\n clienthello->pre_proc_exts, NULL, 0, 1)) {\n goto err;\n }\n {\n unsigned char *pos;\n pos = s->s3->server_random;\n if (ssl_fill_hello_random(s, 1, pos, SSL3_RANDOM_SIZE, dgrd) <= 0) {\n SSLfatal(s, SSL_AD_INTERNAL_ERROR,\n SSL_F_TLS_EARLY_POST_PROCESS_CLIENT_HELLO,\n ERR_R_INTERNAL_ERROR);\n goto err;\n }\n }\n if (!s->hit\n && s->version >= TLS1_VERSION\n && !SSL_IS_TLS13(s)\n && !SSL_IS_DTLS(s)\n && s->ext.session_secret_cb) {\n const SSL_CIPHER *pref_cipher = NULL;\n int master_key_length;\n master_key_length = sizeof(s->session->master_key);\n if (s->ext.session_secret_cb(s, s->session->master_key,\n &master_key_length, ciphers,\n &pref_cipher,\n s->ext.session_secret_cb_arg)\n && master_key_length > 0) {\n s->session->master_key_length = master_key_length;\n s->hit = 1;\n s->session->ciphers = ciphers;\n s->session->verify_result = X509_V_OK;\n ciphers = NULL;\n if (pref_cipher == NULL)\n pref_cipher = ssl3_choose_cipher(s, s->session->ciphers,\n SSL_get_ciphers(s));\n if (pref_cipher == NULL) {\n SSLfatal(s, SSL_AD_HANDSHAKE_FAILURE,\n SSL_F_TLS_EARLY_POST_PROCESS_CLIENT_HELLO,\n SSL_R_NO_SHARED_CIPHER);\n goto err;\n }\n s->session->cipher = pref_cipher;\n sk_SSL_CIPHER_free(s->cipher_list);\n s->cipher_list = sk_SSL_CIPHER_dup(s->session->ciphers);\n sk_SSL_CIPHER_free(s->cipher_list_by_id);\n s->cipher_list_by_id = sk_SSL_CIPHER_dup(s->session->ciphers);\n }\n }\n s->s3->tmp.new_compression = NULL;\n if (SSL_IS_TLS13(s)) {\n if (clienthello->compressions_len != 1) {\n SSLfatal(s, SSL_AD_ILLEGAL_PARAMETER,\n SSL_F_TLS_EARLY_POST_PROCESS_CLIENT_HELLO,\n SSL_R_INVALID_COMPRESSION_ALGORITHM);\n goto err;\n }\n }\n#ifndef OPENSSL_NO_COMP\n else if (s->session->compress_meth != 0) {\n int m, comp_id = s->session->compress_meth;\n unsigned int k;\n if (!ssl_allow_compression(s)) {\n SSLfatal(s, SSL_AD_HANDSHAKE_FAILURE,\n SSL_F_TLS_EARLY_POST_PROCESS_CLIENT_HELLO,\n SSL_R_INCONSISTENT_COMPRESSION);\n goto err;\n }\n for (m = 0; m < sk_SSL_COMP_num(s->ctx->comp_methods); m++) {\n comp = sk_SSL_COMP_value(s->ctx->comp_methods, m);\n if (comp_id == comp->id) {\n s->s3->tmp.new_compression = comp;\n break;\n }\n }\n if (s->s3->tmp.new_compression == NULL) {\n SSLfatal(s, SSL_AD_HANDSHAKE_FAILURE,\n SSL_F_TLS_EARLY_POST_PROCESS_CLIENT_HELLO,\n SSL_R_INVALID_COMPRESSION_ALGORITHM);\n goto err;\n }\n for (k = 0; k < clienthello->compressions_len; k++) {\n if (clienthello->compressions[k] == comp_id)\n break;\n }\n if (k >= clienthello->compressions_len) {\n SSLfatal(s, SSL_AD_ILLEGAL_PARAMETER,\n SSL_F_TLS_EARLY_POST_PROCESS_CLIENT_HELLO,\n SSL_R_REQUIRED_COMPRESSION_ALGORITHM_MISSING);\n goto err;\n }\n } else if (s->hit) {\n comp = NULL;\n } else if (ssl_allow_compression(s) && s->ctx->comp_methods) {\n int m, nn, v, done = 0;\n unsigned int o;\n nn = sk_SSL_COMP_num(s->ctx->comp_methods);\n for (m = 0; m < nn; m++) {\n comp = sk_SSL_COMP_value(s->ctx->comp_methods, m);\n v = comp->id;\n for (o = 0; o < clienthello->compressions_len; o++) {\n if (v == clienthello->compressions[o]) {\n done = 1;\n break;\n }\n }\n if (done)\n break;\n }\n if (done)\n s->s3->tmp.new_compression = comp;\n else\n comp = NULL;\n }\n#else\n if (s->session->compress_meth != 0) {\n SSLfatal(s, SSL_AD_HANDSHAKE_FAILURE,\n SSL_F_TLS_EARLY_POST_PROCESS_CLIENT_HELLO,\n SSL_R_INCONSISTENT_COMPRESSION);\n goto err;\n }\n#endif\n if (!s->hit || SSL_IS_TLS13(s)) {\n sk_SSL_CIPHER_free(s->session->ciphers);\n s->session->ciphers = ciphers;\n if (ciphers == NULL) {\n SSLfatal(s, SSL_AD_INTERNAL_ERROR,\n SSL_F_TLS_EARLY_POST_PROCESS_CLIENT_HELLO,\n ERR_R_INTERNAL_ERROR);\n goto err;\n }\n ciphers = NULL;\n }\n if (!s->hit) {\n#ifdef OPENSSL_NO_COMP\n s->session->compress_meth = 0;\n#else\n s->session->compress_meth = (comp == NULL) ? 0 : comp->id;\n#endif\n if (!tls1_set_server_sigalgs(s)) {\n goto err;\n }\n }\n sk_SSL_CIPHER_free(ciphers);\n sk_SSL_CIPHER_free(scsvs);\n OPENSSL_free(clienthello->pre_proc_exts);\n OPENSSL_free(s->clienthello);\n s->clienthello = NULL;\n return 1;\n err:\n sk_SSL_CIPHER_free(ciphers);\n sk_SSL_CIPHER_free(scsvs);\n OPENSSL_free(clienthello->pre_proc_exts);\n OPENSSL_free(s->clienthello);\n s->clienthello = NULL;\n return 0;\n}', 'int ssl_cache_cipherlist(SSL *s, PACKET *cipher_suites, int sslv2format)\n{\n int n;\n n = sslv2format ? SSLV2_CIPHER_LEN : TLS_CIPHER_LEN;\n if (PACKET_remaining(cipher_suites) == 0) {\n SSLfatal(s, SSL_AD_ILLEGAL_PARAMETER, SSL_F_SSL_CACHE_CIPHERLIST,\n SSL_R_NO_CIPHERS_SPECIFIED);\n return 0;\n }\n if (PACKET_remaining(cipher_suites) % n != 0) {\n SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_F_SSL_CACHE_CIPHERLIST,\n SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);\n return 0;\n }\n OPENSSL_free(s->s3->tmp.ciphers_raw);\n s->s3->tmp.ciphers_raw = NULL;\n s->s3->tmp.ciphers_rawlen = 0;\n if (sslv2format) {\n size_t numciphers = PACKET_remaining(cipher_suites) / n;\n PACKET sslv2ciphers = *cipher_suites;\n unsigned int leadbyte;\n unsigned char *raw;\n raw = OPENSSL_malloc(numciphers * TLS_CIPHER_LEN);\n s->s3->tmp.ciphers_raw = raw;\n if (raw == NULL) {\n SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_SSL_CACHE_CIPHERLIST,\n ERR_R_MALLOC_FAILURE);\n return 0;\n }\n for (s->s3->tmp.ciphers_rawlen = 0;\n PACKET_remaining(&sslv2ciphers) > 0;\n raw += TLS_CIPHER_LEN) {\n if (!PACKET_get_1(&sslv2ciphers, &leadbyte)\n || (leadbyte == 0\n && !PACKET_copy_bytes(&sslv2ciphers, raw,\n TLS_CIPHER_LEN))\n || (leadbyte != 0\n && !PACKET_forward(&sslv2ciphers, TLS_CIPHER_LEN))) {\n SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_F_SSL_CACHE_CIPHERLIST,\n SSL_R_BAD_PACKET);\n OPENSSL_free(s->s3->tmp.ciphers_raw);\n s->s3->tmp.ciphers_raw = NULL;\n s->s3->tmp.ciphers_rawlen = 0;\n return 0;\n }\n if (leadbyte == 0)\n s->s3->tmp.ciphers_rawlen += TLS_CIPHER_LEN;\n }\n } else if (!PACKET_memdup(cipher_suites, &s->s3->tmp.ciphers_raw,\n &s->s3->tmp.ciphers_rawlen)) {\n SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_SSL_CACHE_CIPHERLIST,\n ERR_R_INTERNAL_ERROR);\n return 0;\n }\n return 1;\n}', "int bytes_to_cipher_list(SSL *s, PACKET *cipher_suites,\n STACK_OF(SSL_CIPHER) **skp,\n STACK_OF(SSL_CIPHER) **scsvs_out,\n int sslv2format, int fatal)\n{\n const SSL_CIPHER *c;\n STACK_OF(SSL_CIPHER) *sk = NULL;\n STACK_OF(SSL_CIPHER) *scsvs = NULL;\n int n;\n unsigned char cipher[SSLV2_CIPHER_LEN];\n n = sslv2format ? SSLV2_CIPHER_LEN : TLS_CIPHER_LEN;\n if (PACKET_remaining(cipher_suites) == 0) {\n if (fatal)\n SSLfatal(s, SSL_AD_ILLEGAL_PARAMETER, SSL_F_BYTES_TO_CIPHER_LIST,\n SSL_R_NO_CIPHERS_SPECIFIED);\n else\n SSLerr(SSL_F_BYTES_TO_CIPHER_LIST, SSL_R_NO_CIPHERS_SPECIFIED);\n return 0;\n }\n if (PACKET_remaining(cipher_suites) % n != 0) {\n if (fatal)\n SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_F_BYTES_TO_CIPHER_LIST,\n SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);\n else\n SSLerr(SSL_F_BYTES_TO_CIPHER_LIST,\n SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);\n return 0;\n }\n sk = sk_SSL_CIPHER_new_null();\n scsvs = sk_SSL_CIPHER_new_null();\n if (sk == NULL || scsvs == NULL) {\n if (fatal)\n SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_BYTES_TO_CIPHER_LIST,\n ERR_R_MALLOC_FAILURE);\n else\n SSLerr(SSL_F_BYTES_TO_CIPHER_LIST, ERR_R_MALLOC_FAILURE);\n goto err;\n }\n while (PACKET_copy_bytes(cipher_suites, cipher, n)) {\n if (sslv2format && cipher[0] != '\\0')\n continue;\n c = ssl_get_cipher_by_char(s, sslv2format ? &cipher[1] : cipher, 1);\n if (c != NULL) {\n if ((c->valid && !sk_SSL_CIPHER_push(sk, c)) ||\n (!c->valid && !sk_SSL_CIPHER_push(scsvs, c))) {\n if (fatal)\n SSLfatal(s, SSL_AD_INTERNAL_ERROR,\n SSL_F_BYTES_TO_CIPHER_LIST, ERR_R_MALLOC_FAILURE);\n else\n SSLerr(SSL_F_BYTES_TO_CIPHER_LIST, ERR_R_MALLOC_FAILURE);\n goto err;\n }\n }\n }\n if (PACKET_remaining(cipher_suites) > 0) {\n if (fatal)\n SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_F_BYTES_TO_CIPHER_LIST,\n SSL_R_BAD_LENGTH);\n else\n SSLerr(SSL_F_BYTES_TO_CIPHER_LIST, SSL_R_BAD_LENGTH);\n goto err;\n }\n if (skp != NULL)\n *skp = sk;\n else\n sk_SSL_CIPHER_free(sk);\n if (scsvs_out != NULL)\n *scsvs_out = scsvs;\n else\n sk_SSL_CIPHER_free(scsvs);\n return 1;\n err:\n sk_SSL_CIPHER_free(sk);\n sk_SSL_CIPHER_free(scsvs);\n return 0;\n}", 'static ossl_inline int PACKET_copy_bytes(PACKET *pkt,\n unsigned char *data, size_t len)\n{\n if (!PACKET_peek_copy_bytes(pkt, data, len))\n return 0;\n packet_forward(pkt, len);\n return 1;\n}', 'static ossl_inline void packet_forward(PACKET *pkt, size_t len)\n{\n pkt->curr += len;\n pkt->remaining -= len;\n}'] |
26,936 | 0 | https://github.com/openssl/openssl/blob/aa24c4a736b095bfaa0698bf87e61bec7b5d8691/ssl/s3_srvr.c/#L1799 | int ssl3_send_server_key_exchange(SSL *s)
{
#ifndef OPENSSL_NO_RSA
unsigned char *q;
int j,num;
RSA *rsa;
unsigned char md_buf[MD5_DIGEST_LENGTH+SHA_DIGEST_LENGTH];
unsigned int u;
#endif
#ifndef OPENSSL_NO_DH
DH *dh=NULL,*dhp;
#endif
#ifndef OPENSSL_NO_ECDH
EC_KEY *ecdh=NULL, *ecdhp;
unsigned char *encodedPoint = NULL;
int encodedlen = 0;
int curve_id = 0;
BN_CTX *bn_ctx = NULL;
#endif
EVP_PKEY *pkey;
unsigned char *p,*d;
int al,i;
unsigned long type;
int n;
CERT *cert;
BIGNUM *r[4];
int nr[4],kn;
BUF_MEM *buf;
EVP_MD_CTX md_ctx;
EVP_MD_CTX_init(&md_ctx);
if (s->state == SSL3_ST_SW_KEY_EXCH_A)
{
type=s->s3->tmp.new_cipher->algorithm_mkey;
cert=s->cert;
buf=s->init_buf;
r[0]=r[1]=r[2]=r[3]=NULL;
n=0;
#ifndef OPENSSL_NO_RSA
if (type & SSL_kRSA)
{
rsa=cert->rsa_tmp;
if ((rsa == NULL) && (s->cert->rsa_tmp_cb != NULL))
{
rsa=s->cert->rsa_tmp_cb(s,
SSL_C_IS_EXPORT(s->s3->tmp.new_cipher),
SSL_C_EXPORT_PKEYLENGTH(s->s3->tmp.new_cipher));
if(rsa == NULL)
{
al=SSL_AD_HANDSHAKE_FAILURE;
SSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,SSL_R_ERROR_GENERATING_TMP_RSA_KEY);
goto f_err;
}
RSA_up_ref(rsa);
cert->rsa_tmp=rsa;
}
if (rsa == NULL)
{
al=SSL_AD_HANDSHAKE_FAILURE;
SSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,SSL_R_MISSING_TMP_RSA_KEY);
goto f_err;
}
r[0]=rsa->n;
r[1]=rsa->e;
s->s3->tmp.use_rsa_tmp=1;
}
else
#endif
#ifndef OPENSSL_NO_DH
if (type & SSL_kEDH)
{
dhp=cert->dh_tmp;
if ((dhp == NULL) && (s->cert->dh_tmp_cb != NULL))
dhp=s->cert->dh_tmp_cb(s,
SSL_C_IS_EXPORT(s->s3->tmp.new_cipher),
SSL_C_EXPORT_PKEYLENGTH(s->s3->tmp.new_cipher));
if (dhp == NULL)
{
al=SSL_AD_HANDSHAKE_FAILURE;
SSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,SSL_R_MISSING_TMP_DH_KEY);
goto f_err;
}
if (s->s3->tmp.dh != NULL)
{
DH_free(dh);
SSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE, ERR_R_INTERNAL_ERROR);
goto err;
}
if ((dh=DHparams_dup(dhp)) == NULL)
{
SSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,ERR_R_DH_LIB);
goto err;
}
s->s3->tmp.dh=dh;
if ((dhp->pub_key == NULL ||
dhp->priv_key == NULL ||
(s->options & SSL_OP_SINGLE_DH_USE)))
{
if(!DH_generate_key(dh))
{
SSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,
ERR_R_DH_LIB);
goto err;
}
}
else
{
dh->pub_key=BN_dup(dhp->pub_key);
dh->priv_key=BN_dup(dhp->priv_key);
if ((dh->pub_key == NULL) ||
(dh->priv_key == NULL))
{
SSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,ERR_R_DH_LIB);
goto err;
}
}
r[0]=dh->p;
r[1]=dh->g;
r[2]=dh->pub_key;
}
else
#endif
#ifndef OPENSSL_NO_ECDH
if (type & SSL_kEECDH)
{
const EC_GROUP *group;
ecdhp=cert->ecdh_tmp;
if ((ecdhp == NULL) && (s->cert->ecdh_tmp_cb != NULL))
{
ecdhp=s->cert->ecdh_tmp_cb(s,
SSL_C_IS_EXPORT(s->s3->tmp.new_cipher),
SSL_C_EXPORT_PKEYLENGTH(s->s3->tmp.new_cipher));
}
if (ecdhp == NULL)
{
al=SSL_AD_HANDSHAKE_FAILURE;
SSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,SSL_R_MISSING_TMP_ECDH_KEY);
goto f_err;
}
if (s->s3->tmp.ecdh != NULL)
{
EC_KEY_free(s->s3->tmp.ecdh);
SSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE, ERR_R_INTERNAL_ERROR);
goto err;
}
if (ecdhp == NULL)
{
SSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,ERR_R_ECDH_LIB);
goto err;
}
if (!EC_KEY_up_ref(ecdhp))
{
SSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,ERR_R_ECDH_LIB);
goto err;
}
ecdh = ecdhp;
s->s3->tmp.ecdh=ecdh;
if ((EC_KEY_get0_public_key(ecdh) == NULL) ||
(EC_KEY_get0_private_key(ecdh) == NULL) ||
(s->options & SSL_OP_SINGLE_ECDH_USE))
{
if(!EC_KEY_generate_key(ecdh))
{
SSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,ERR_R_ECDH_LIB);
goto err;
}
}
if (((group = EC_KEY_get0_group(ecdh)) == NULL) ||
(EC_KEY_get0_public_key(ecdh) == NULL) ||
(EC_KEY_get0_private_key(ecdh) == NULL))
{
SSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,ERR_R_ECDH_LIB);
goto err;
}
if (SSL_C_IS_EXPORT(s->s3->tmp.new_cipher) &&
(EC_GROUP_get_degree(group) > 163))
{
SSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,SSL_R_ECGROUP_TOO_LARGE_FOR_CIPHER);
goto err;
}
if ((curve_id =
tls1_ec_nid2curve_id(EC_GROUP_get_curve_name(group)))
== 0)
{
SSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,SSL_R_UNSUPPORTED_ELLIPTIC_CURVE);
goto err;
}
encodedlen = EC_POINT_point2oct(group,
EC_KEY_get0_public_key(ecdh),
POINT_CONVERSION_UNCOMPRESSED,
NULL, 0, NULL);
encodedPoint = (unsigned char *)
OPENSSL_malloc(encodedlen*sizeof(unsigned char));
bn_ctx = BN_CTX_new();
if ((encodedPoint == NULL) || (bn_ctx == NULL))
{
SSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,ERR_R_MALLOC_FAILURE);
goto err;
}
encodedlen = EC_POINT_point2oct(group,
EC_KEY_get0_public_key(ecdh),
POINT_CONVERSION_UNCOMPRESSED,
encodedPoint, encodedlen, bn_ctx);
if (encodedlen == 0)
{
SSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,ERR_R_ECDH_LIB);
goto err;
}
BN_CTX_free(bn_ctx); bn_ctx=NULL;
n = 4 + encodedlen;
r[0]=NULL;
r[1]=NULL;
r[2]=NULL;
r[3]=NULL;
}
else
#endif
#ifndef OPENSSL_NO_PSK
if (type & SSL_kPSK)
{
n+=2+strlen(s->ctx->psk_identity_hint);
}
else
#endif
#ifndef OPENSSL_NO_SRP
if (type & SSL_kSRP)
{
if ((s->srp_ctx.N == NULL) ||
(s->srp_ctx.g == NULL) ||
(s->srp_ctx.s == NULL) ||
(s->srp_ctx.B == NULL))
{
SSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,SSL_R_MISSING_SRP_PARAM);
goto err;
}
r[0]=s->srp_ctx.N;
r[1]=s->srp_ctx.g;
r[2]=s->srp_ctx.s;
r[3]=s->srp_ctx.B;
}
else
#endif
{
al=SSL_AD_HANDSHAKE_FAILURE;
SSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,SSL_R_UNKNOWN_KEY_EXCHANGE_TYPE);
goto f_err;
}
for (i=0; r[i] != NULL && i<4; i++)
{
nr[i]=BN_num_bytes(r[i]);
#ifndef OPENSSL_NO_SRP
if ((i == 2) && (type & SSL_kSRP))
n+=1+nr[i];
else
#endif
n+=2+nr[i];
}
if (!(s->s3->tmp.new_cipher->algorithm_auth & SSL_aNULL)
&& !(s->s3->tmp.new_cipher->algorithm_mkey & SSL_kPSK))
{
if ((pkey=ssl_get_sign_pkey(s,s->s3->tmp.new_cipher))
== NULL)
{
al=SSL_AD_DECODE_ERROR;
goto f_err;
}
kn=EVP_PKEY_size(pkey);
}
else
{
pkey=NULL;
kn=0;
}
if (!BUF_MEM_grow_clean(buf,n+4+kn))
{
SSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,ERR_LIB_BUF);
goto err;
}
d=(unsigned char *)s->init_buf->data;
p= &(d[4]);
for (i=0; r[i] != NULL && i<4; i++)
{
#ifndef OPENSSL_NO_SRP
if ((i == 2) && (type & SSL_kSRP))
{
*p = nr[i];
p++;
}
else
#endif
s2n(nr[i],p);
BN_bn2bin(r[i],p);
p+=nr[i];
}
#ifndef OPENSSL_NO_ECDH
if (type & SSL_kEECDH)
{
*p = NAMED_CURVE_TYPE;
p += 1;
*p = 0;
p += 1;
*p = curve_id;
p += 1;
*p = encodedlen;
p += 1;
memcpy((unsigned char*)p,
(unsigned char *)encodedPoint,
encodedlen);
OPENSSL_free(encodedPoint);
p += encodedlen;
}
#endif
#ifndef OPENSSL_NO_PSK
if (type & SSL_kPSK)
{
s2n(strlen(s->ctx->psk_identity_hint), p);
strncpy((char *)p, s->ctx->psk_identity_hint, strlen(s->ctx->psk_identity_hint));
p+=strlen(s->ctx->psk_identity_hint);
}
#endif
if (pkey != NULL)
{
#ifndef OPENSSL_NO_RSA
if (pkey->type == EVP_PKEY_RSA)
{
q=md_buf;
j=0;
for (num=2; num > 0; num--)
{
EVP_DigestInit_ex(&md_ctx,(num == 2)
?s->ctx->md5:s->ctx->sha1, NULL);
EVP_DigestUpdate(&md_ctx,&(s->s3->client_random[0]),SSL3_RANDOM_SIZE);
EVP_DigestUpdate(&md_ctx,&(s->s3->server_random[0]),SSL3_RANDOM_SIZE);
EVP_DigestUpdate(&md_ctx,&(d[4]),n);
EVP_DigestFinal_ex(&md_ctx,q,
(unsigned int *)&i);
q+=i;
j+=i;
}
if (RSA_sign(NID_md5_sha1, md_buf, j,
&(p[2]), &u, pkey->pkey.rsa) <= 0)
{
SSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,ERR_LIB_RSA);
goto err;
}
s2n(u,p);
n+=u+2;
}
else
#endif
#if !defined(OPENSSL_NO_DSA)
if (pkey->type == EVP_PKEY_DSA)
{
EVP_SignInit_ex(&md_ctx,EVP_dss1(), NULL);
EVP_SignUpdate(&md_ctx,&(s->s3->client_random[0]),SSL3_RANDOM_SIZE);
EVP_SignUpdate(&md_ctx,&(s->s3->server_random[0]),SSL3_RANDOM_SIZE);
EVP_SignUpdate(&md_ctx,&(d[4]),n);
if (!EVP_SignFinal(&md_ctx,&(p[2]),
(unsigned int *)&i,pkey))
{
SSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,ERR_LIB_DSA);
goto err;
}
s2n(i,p);
n+=i+2;
}
else
#endif
#if !defined(OPENSSL_NO_ECDSA)
if (pkey->type == EVP_PKEY_EC)
{
EVP_SignInit_ex(&md_ctx,EVP_ecdsa(), NULL);
EVP_SignUpdate(&md_ctx,&(s->s3->client_random[0]),SSL3_RANDOM_SIZE);
EVP_SignUpdate(&md_ctx,&(s->s3->server_random[0]),SSL3_RANDOM_SIZE);
EVP_SignUpdate(&md_ctx,&(d[4]),n);
if (!EVP_SignFinal(&md_ctx,&(p[2]),
(unsigned int *)&i,pkey))
{
SSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,ERR_LIB_ECDSA);
goto err;
}
s2n(i,p);
n+=i+2;
}
else
#endif
{
al=SSL_AD_HANDSHAKE_FAILURE;
SSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,SSL_R_UNKNOWN_PKEY_TYPE);
goto f_err;
}
}
*(d++)=SSL3_MT_SERVER_KEY_EXCHANGE;
l2n3(n,d);
s->init_num=n+4;
s->init_off=0;
}
s->state = SSL3_ST_SW_KEY_EXCH_B;
EVP_MD_CTX_cleanup(&md_ctx);
return(ssl3_do_write(s,SSL3_RT_HANDSHAKE));
f_err:
ssl3_send_alert(s,SSL3_AL_FATAL,al);
err:
#ifndef OPENSSL_NO_ECDH
if (encodedPoint != NULL) OPENSSL_free(encodedPoint);
BN_CTX_free(bn_ctx);
#endif
EVP_MD_CTX_cleanup(&md_ctx);
return(-1);
} | ['int ssl3_send_server_key_exchange(SSL *s)\n\t{\n#ifndef OPENSSL_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\tunsigned int u;\n#endif\n#ifndef OPENSSL_NO_DH\n\tDH *dh=NULL,*dhp;\n#endif\n#ifndef OPENSSL_NO_ECDH\n\tEC_KEY *ecdh=NULL, *ecdhp;\n\tunsigned char *encodedPoint = NULL;\n\tint encodedlen = 0;\n\tint curve_id = 0;\n\tBN_CTX *bn_ctx = NULL;\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\tEVP_MD_CTX_init(&md_ctx);\n\tif (s->state == SSL3_ST_SW_KEY_EXCH_A)\n\t\t{\n\t\ttype=s->s3->tmp.new_cipher->algorithm_mkey;\n\t\tcert=s->cert;\n\t\tbuf=s->init_buf;\n\t\tr[0]=r[1]=r[2]=r[3]=NULL;\n\t\tn=0;\n#ifndef OPENSSL_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->cert->rsa_tmp_cb != NULL))\n\t\t\t\t{\n\t\t\t\trsa=s->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\tif(rsa == NULL)\n\t\t\t\t{\n\t\t\t\t\tal=SSL_AD_HANDSHAKE_FAILURE;\n\t\t\t\t\tSSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,SSL_R_ERROR_GENERATING_TMP_RSA_KEY);\n\t\t\t\t\tgoto f_err;\n\t\t\t\t}\n\t\t\t\tRSA_up_ref(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 OPENSSL_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) && (s->cert->dh_tmp_cb != NULL))\n\t\t\t\tdhp=s->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 (s->s3->tmp.dh != NULL)\n\t\t\t\t{\n\t\t\t\tDH_free(dh);\n\t\t\t\tSSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE, ERR_R_INTERNAL_ERROR);\n\t\t\t\tgoto 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#ifndef OPENSSL_NO_ECDH\n\t\t\tif (type & SSL_kEECDH)\n\t\t\t{\n\t\t\tconst EC_GROUP *group;\n\t\t\tecdhp=cert->ecdh_tmp;\n\t\t\tif ((ecdhp == NULL) && (s->cert->ecdh_tmp_cb != NULL))\n\t\t\t\t{\n\t\t\t\tecdhp=s->cert->ecdh_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\t}\n\t\t\tif (ecdhp == 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_ECDH_KEY);\n\t\t\t\tgoto f_err;\n\t\t\t\t}\n\t\t\tif (s->s3->tmp.ecdh != NULL)\n\t\t\t\t{\n\t\t\t\tEC_KEY_free(s->s3->tmp.ecdh);\n\t\t\t\tSSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE, ERR_R_INTERNAL_ERROR);\n\t\t\t\tgoto err;\n\t\t\t\t}\n\t\t\tif (ecdhp == NULL)\n\t\t\t\t{\n\t\t\t\tSSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,ERR_R_ECDH_LIB);\n\t\t\t\tgoto err;\n\t\t\t\t}\n\t\t\tif (!EC_KEY_up_ref(ecdhp))\n\t\t\t\t{\n\t\t\t\tSSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,ERR_R_ECDH_LIB);\n\t\t\t\tgoto err;\n\t\t\t\t}\n\t\t\tecdh = ecdhp;\n\t\t\ts->s3->tmp.ecdh=ecdh;\n\t\t\tif ((EC_KEY_get0_public_key(ecdh) == NULL) ||\n\t\t\t (EC_KEY_get0_private_key(ecdh) == NULL) ||\n\t\t\t (s->options & SSL_OP_SINGLE_ECDH_USE))\n\t\t\t\t{\n\t\t\t\tif(!EC_KEY_generate_key(ecdh))\n\t\t\t\t {\n\t\t\t\t SSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,ERR_R_ECDH_LIB);\n\t\t\t\t goto err;\n\t\t\t\t }\n\t\t\t\t}\n\t\t\tif (((group = EC_KEY_get0_group(ecdh)) == NULL) ||\n\t\t\t (EC_KEY_get0_public_key(ecdh) == NULL) ||\n\t\t\t (EC_KEY_get0_private_key(ecdh) == NULL))\n\t\t\t\t{\n\t\t\t\tSSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,ERR_R_ECDH_LIB);\n\t\t\t\tgoto err;\n\t\t\t\t}\n\t\t\tif (SSL_C_IS_EXPORT(s->s3->tmp.new_cipher) &&\n\t\t\t (EC_GROUP_get_degree(group) > 163))\n\t\t\t\t{\n\t\t\t\tSSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,SSL_R_ECGROUP_TOO_LARGE_FOR_CIPHER);\n\t\t\t\tgoto err;\n\t\t\t\t}\n\t\t\tif ((curve_id =\n\t\t\t tls1_ec_nid2curve_id(EC_GROUP_get_curve_name(group)))\n\t\t\t == 0)\n\t\t\t\t{\n\t\t\t\tSSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,SSL_R_UNSUPPORTED_ELLIPTIC_CURVE);\n\t\t\t\tgoto err;\n\t\t\t\t}\n\t\t\tencodedlen = EC_POINT_point2oct(group,\n\t\t\t EC_KEY_get0_public_key(ecdh),\n\t\t\t POINT_CONVERSION_UNCOMPRESSED,\n\t\t\t NULL, 0, NULL);\n\t\t\tencodedPoint = (unsigned char *)\n\t\t\t OPENSSL_malloc(encodedlen*sizeof(unsigned char));\n\t\t\tbn_ctx = BN_CTX_new();\n\t\t\tif ((encodedPoint == NULL) || (bn_ctx == NULL))\n\t\t\t\t{\n\t\t\t\tSSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,ERR_R_MALLOC_FAILURE);\n\t\t\t\tgoto err;\n\t\t\t\t}\n\t\t\tencodedlen = EC_POINT_point2oct(group,\n\t\t\t EC_KEY_get0_public_key(ecdh),\n\t\t\t POINT_CONVERSION_UNCOMPRESSED,\n\t\t\t encodedPoint, encodedlen, bn_ctx);\n\t\t\tif (encodedlen == 0)\n\t\t\t\t{\n\t\t\t\tSSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,ERR_R_ECDH_LIB);\n\t\t\t\tgoto err;\n\t\t\t\t}\n\t\t\tBN_CTX_free(bn_ctx); bn_ctx=NULL;\n\t\t\tn = 4 + encodedlen;\n\t\t\tr[0]=NULL;\n\t\t\tr[1]=NULL;\n\t\t\tr[2]=NULL;\n\t\t\tr[3]=NULL;\n\t\t\t}\n\t\telse\n#endif\n#ifndef OPENSSL_NO_PSK\n\t\t\tif (type & SSL_kPSK)\n\t\t\t\t{\n\t\t\t\tn+=2+strlen(s->ctx->psk_identity_hint);\n\t\t\t\t}\n\t\t\telse\n#endif\n#ifndef OPENSSL_NO_SRP\n\t\tif (type & SSL_kSRP)\n\t\t\t{\n\t\t\tif ((s->srp_ctx.N == NULL) ||\n\t\t\t\t(s->srp_ctx.g == NULL) ||\n\t\t\t\t(s->srp_ctx.s == NULL) ||\n\t\t\t\t(s->srp_ctx.B == NULL))\n\t\t\t\t{\n\t\t\t\tSSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,SSL_R_MISSING_SRP_PARAM);\n\t\t\t\tgoto err;\n\t\t\t\t}\n\t\t\tr[0]=s->srp_ctx.N;\n\t\t\tr[1]=s->srp_ctx.g;\n\t\t\tr[2]=s->srp_ctx.s;\n\t\t\tr[3]=s->srp_ctx.B;\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<4; i++)\n\t\t\t{\n\t\t\tnr[i]=BN_num_bytes(r[i]);\n#ifndef OPENSSL_NO_SRP\n\t\t\tif ((i == 2) && (type & SSL_kSRP))\n\t\t\t\tn+=1+nr[i];\n\t\t\telse\n#endif\n\t\t\tn+=2+nr[i];\n\t\t\t}\n\t\tif (!(s->s3->tmp.new_cipher->algorithm_auth & SSL_aNULL)\n\t\t\t&& !(s->s3->tmp.new_cipher->algorithm_mkey & SSL_kPSK))\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_clean(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<4; i++)\n\t\t\t{\n#ifndef OPENSSL_NO_SRP\n\t\t\tif ((i == 2) && (type & SSL_kSRP))\n\t\t\t\t{\n\t\t\t\t*p = nr[i];\n\t\t\t\tp++;\n\t\t\t\t}\n\t\t\telse\n#endif\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#ifndef OPENSSL_NO_ECDH\n\t\tif (type & SSL_kEECDH)\n\t\t\t{\n\t\t\t*p = NAMED_CURVE_TYPE;\n\t\t\tp += 1;\n\t\t\t*p = 0;\n\t\t\tp += 1;\n\t\t\t*p = curve_id;\n\t\t\tp += 1;\n\t\t\t*p = encodedlen;\n\t\t\tp += 1;\n\t\t\tmemcpy((unsigned char*)p,\n\t\t\t (unsigned char *)encodedPoint,\n\t\t\t encodedlen);\n\t\t\tOPENSSL_free(encodedPoint);\n\t\t\tp += encodedlen;\n\t\t\t}\n#endif\n#ifndef OPENSSL_NO_PSK\n\t\tif (type & SSL_kPSK)\n\t\t\t{\n\t\t\ts2n(strlen(s->ctx->psk_identity_hint), p);\n\t\t\tstrncpy((char *)p, s->ctx->psk_identity_hint, strlen(s->ctx->psk_identity_hint));\n\t\t\tp+=strlen(s->ctx->psk_identity_hint);\n\t\t\t}\n#endif\n\t\tif (pkey != NULL)\n\t\t\t{\n#ifndef OPENSSL_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_ex(&md_ctx,(num == 2)\n\t\t\t\t\t\t?s->ctx->md5:s->ctx->sha1, NULL);\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_ex(&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\tif (RSA_sign(NID_md5_sha1, md_buf, j,\n\t\t\t\t\t&(p[2]), &u, pkey->pkey.rsa) <= 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(u,p);\n\t\t\t\tn+=u+2;\n\t\t\t\t}\n\t\t\telse\n#endif\n#if !defined(OPENSSL_NO_DSA)\n\t\t\t\tif (pkey->type == EVP_PKEY_DSA)\n\t\t\t\t{\n\t\t\t\tEVP_SignInit_ex(&md_ctx,EVP_dss1(), NULL);\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#if !defined(OPENSSL_NO_ECDSA)\n\t\t\t\tif (pkey->type == EVP_PKEY_EC)\n\t\t\t\t{\n\t\t\t\tEVP_SignInit_ex(&md_ctx,EVP_ecdsa(), NULL);\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_ECDSA);\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\ts->state = SSL3_ST_SW_KEY_EXCH_B;\n\tEVP_MD_CTX_cleanup(&md_ctx);\n\treturn(ssl3_do_write(s,SSL3_RT_HANDSHAKE));\nf_err:\n\tssl3_send_alert(s,SSL3_AL_FATAL,al);\nerr:\n#ifndef OPENSSL_NO_ECDH\n\tif (encodedPoint != NULL) OPENSSL_free(encodedPoint);\n\tBN_CTX_free(bn_ctx);\n#endif\n\tEVP_MD_CTX_cleanup(&md_ctx);\n\treturn(-1);\n\t}'] |
26,937 | 0 | https://github.com/libav/libav/blob/3ec394ea823c2a6e65a6abbdb2041ce1c66964f8/libavcodec/h264pred.c/#L188 | static void pred4x4_down_left_rv40_c(uint8_t *src, uint8_t *topright, int stride){
LOAD_TOP_EDGE
LOAD_TOP_RIGHT_EDGE
LOAD_LEFT_EDGE
LOAD_DOWN_LEFT_EDGE
src[0+0*stride]=(t0 + t2 + 2*t1 + 2 + l0 + l2 + 2*l1 + 2)>>3;
src[1+0*stride]=
src[0+1*stride]=(t1 + t3 + 2*t2 + 2 + l1 + l3 + 2*l2 + 2)>>3;
src[2+0*stride]=
src[1+1*stride]=
src[0+2*stride]=(t2 + t4 + 2*t3 + 2 + l2 + l4 + 2*l3 + 2)>>3;
src[3+0*stride]=
src[2+1*stride]=
src[1+2*stride]=
src[0+3*stride]=(t3 + t5 + 2*t4 + 2 + l3 + l5 + 2*l4 + 2)>>3;
src[3+1*stride]=
src[2+2*stride]=
src[1+3*stride]=(t4 + t6 + 2*t5 + 2 + l4 + l6 + 2*l5 + 2)>>3;
src[3+2*stride]=
src[2+3*stride]=(t5 + t7 + 2*t6 + 2 + l5 + l7 + 2*l6 + 2)>>3;
src[3+3*stride]=(t6 + t7 + 1 + l6 + l7 + 1)>>2;
} | ['static void pred4x4_down_left_rv40_c(uint8_t *src, uint8_t *topright, int stride){\n LOAD_TOP_EDGE\n LOAD_TOP_RIGHT_EDGE\n LOAD_LEFT_EDGE\n LOAD_DOWN_LEFT_EDGE\n src[0+0*stride]=(t0 + t2 + 2*t1 + 2 + l0 + l2 + 2*l1 + 2)>>3;\n src[1+0*stride]=\n src[0+1*stride]=(t1 + t3 + 2*t2 + 2 + l1 + l3 + 2*l2 + 2)>>3;\n src[2+0*stride]=\n src[1+1*stride]=\n src[0+2*stride]=(t2 + t4 + 2*t3 + 2 + l2 + l4 + 2*l3 + 2)>>3;\n src[3+0*stride]=\n src[2+1*stride]=\n src[1+2*stride]=\n src[0+3*stride]=(t3 + t5 + 2*t4 + 2 + l3 + l5 + 2*l4 + 2)>>3;\n src[3+1*stride]=\n src[2+2*stride]=\n src[1+3*stride]=(t4 + t6 + 2*t5 + 2 + l4 + l6 + 2*l5 + 2)>>3;\n src[3+2*stride]=\n src[2+3*stride]=(t5 + t7 + 2*t6 + 2 + l5 + l7 + 2*l6 + 2)>>3;\n src[3+3*stride]=(t6 + t7 + 1 + l6 + l7 + 1)>>2;\n}'] |
26,938 | 0 | https://github.com/openssl/openssl/blob/5ea564f154ebe8bda2a0e091a312e2058edf437f/crypto/bn/bn_mul.c/#L685 | void bn_mul_normal(BN_ULONG *r, BN_ULONG *a, int na, BN_ULONG *b, int nb)
{
BN_ULONG *rr;
if (na < nb) {
int itmp;
BN_ULONG *ltmp;
itmp = na;
na = nb;
nb = itmp;
ltmp = a;
a = b;
b = ltmp;
}
rr = &(r[na]);
if (nb <= 0) {
(void)bn_mul_words(r, a, na, 0);
return;
} else
rr[0] = bn_mul_words(r, a, na, b[0]);
for (;;) {
if (--nb <= 0)
return;
rr[1] = bn_mul_add_words(&(r[1]), a, na, b[1]);
if (--nb <= 0)
return;
rr[2] = bn_mul_add_words(&(r[2]), a, na, b[2]);
if (--nb <= 0)
return;
rr[3] = bn_mul_add_words(&(r[3]), a, na, b[3]);
if (--nb <= 0)
return;
rr[4] = bn_mul_add_words(&(r[4]), a, na, b[4]);
rr += 4;
r += 4;
b += 4;
}
} | ['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 0;\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}', '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}', '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_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#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 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_mul_part_recursive(BN_ULONG *r, BN_ULONG *a, BN_ULONG *b, int n,\n int tna, int tnb, BN_ULONG *t)\n{\n int i, j, n2 = n * 2;\n int c1, c2, neg;\n BN_ULONG ln, lo, *p;\n if (n < 8) {\n bn_mul_normal(r, a, n + tna, b, n + tnb);\n return;\n }\n c1 = bn_cmp_part_words(a, &(a[n]), tna, n - tna);\n c2 = bn_cmp_part_words(&(b[n]), b, tnb, tnb - n);\n neg = 0;\n switch (c1 * 3 + c2) {\n case -4:\n bn_sub_part_words(t, &(a[n]), a, tna, tna - n);\n bn_sub_part_words(&(t[n]), b, &(b[n]), tnb, n - tnb);\n break;\n case -3:\n case -2:\n bn_sub_part_words(t, &(a[n]), a, tna, tna - n);\n bn_sub_part_words(&(t[n]), &(b[n]), b, tnb, tnb - n);\n neg = 1;\n break;\n case -1:\n case 0:\n case 1:\n case 2:\n bn_sub_part_words(t, a, &(a[n]), tna, n - tna);\n bn_sub_part_words(&(t[n]), b, &(b[n]), tnb, n - tnb);\n neg = 1;\n break;\n case 3:\n case 4:\n bn_sub_part_words(t, a, &(a[n]), tna, n - tna);\n bn_sub_part_words(&(t[n]), &(b[n]), b, tnb, tnb - n);\n break;\n }\n# if 0\n if (n == 4) {\n bn_mul_comba4(&(t[n2]), t, &(t[n]));\n bn_mul_comba4(r, a, b);\n bn_mul_normal(&(r[n2]), &(a[n]), tn, &(b[n]), tn);\n memset(&r[n2 + tn * 2], 0, sizeof(*r) * (n2 - tn * 2));\n } else\n# endif\n if (n == 8) {\n bn_mul_comba8(&(t[n2]), t, &(t[n]));\n bn_mul_comba8(r, a, b);\n bn_mul_normal(&(r[n2]), &(a[n]), tna, &(b[n]), tnb);\n memset(&r[n2 + tna + tnb], 0, sizeof(*r) * (n2 - tna - tnb));\n } else {\n p = &(t[n2 * 2]);\n bn_mul_recursive(&(t[n2]), t, &(t[n]), n, 0, 0, p);\n bn_mul_recursive(r, a, b, n, 0, 0, p);\n i = n / 2;\n if (tna > tnb)\n j = tna - i;\n else\n j = tnb - i;\n if (j == 0) {\n bn_mul_recursive(&(r[n2]), &(a[n]), &(b[n]),\n i, tna - i, tnb - i, p);\n memset(&r[n2 + i * 2], 0, sizeof(*r) * (n2 - i * 2));\n } else if (j > 0) {\n bn_mul_part_recursive(&(r[n2]), &(a[n]), &(b[n]),\n i, tna - i, tnb - i, p);\n memset(&(r[n2 + tna + tnb]), 0,\n sizeof(BN_ULONG) * (n2 - tna - tnb));\n } else {\n memset(&r[n2], 0, sizeof(*r) * n2);\n if (tna < BN_MUL_RECURSIVE_SIZE_NORMAL\n && tnb < BN_MUL_RECURSIVE_SIZE_NORMAL) {\n bn_mul_normal(&(r[n2]), &(a[n]), tna, &(b[n]), tnb);\n } else {\n for (;;) {\n i /= 2;\n if (i < tna || i < tnb) {\n bn_mul_part_recursive(&(r[n2]),\n &(a[n]), &(b[n]),\n i, tna - i, tnb - i, p);\n break;\n } else if (i == tna || i == tnb) {\n bn_mul_recursive(&(r[n2]),\n &(a[n]), &(b[n]),\n i, tna - i, tnb - i, p);\n break;\n }\n }\n }\n }\n }\n c1 = (int)(bn_add_words(t, r, &(r[n2]), n2));\n if (neg) {\n c1 -= (int)(bn_sub_words(&(t[n2]), t, &(t[n2]), n2));\n } else {\n c1 += (int)(bn_add_words(&(t[n2]), &(t[n2]), t, n2));\n }\n c1 += (int)(bn_add_words(&(r[n]), &(r[n]), &(t[n2]), n2));\n if (c1) {\n p = &(r[n + n2]);\n lo = *p;\n ln = (lo + c1) & BN_MASK2;\n *p = ln;\n if (ln < (BN_ULONG)c1) {\n do {\n p++;\n lo = *p;\n ln = (lo + 1) & BN_MASK2;\n *p = ln;\n } while (ln == 0);\n }\n }\n}', 'void bn_mul_normal(BN_ULONG *r, BN_ULONG *a, int na, BN_ULONG *b, int nb)\n{\n BN_ULONG *rr;\n if (na < nb) {\n int itmp;\n BN_ULONG *ltmp;\n itmp = na;\n na = nb;\n nb = itmp;\n ltmp = a;\n a = b;\n b = ltmp;\n }\n rr = &(r[na]);\n if (nb <= 0) {\n (void)bn_mul_words(r, a, na, 0);\n return;\n } else\n rr[0] = bn_mul_words(r, a, na, b[0]);\n for (;;) {\n if (--nb <= 0)\n return;\n rr[1] = bn_mul_add_words(&(r[1]), a, na, b[1]);\n if (--nb <= 0)\n return;\n rr[2] = bn_mul_add_words(&(r[2]), a, na, b[2]);\n if (--nb <= 0)\n return;\n rr[3] = bn_mul_add_words(&(r[3]), a, na, b[3]);\n if (--nb <= 0)\n return;\n rr[4] = bn_mul_add_words(&(r[4]), a, na, b[4]);\n rr += 4;\n r += 4;\n b += 4;\n }\n}'] |
26,939 | 0 | https://github.com/nginx/nginx/blob/58e26b88b774bbffbcd54bfc2de57a1b902ed4dd/src/http/ngx_http_core_module.c/#L1804 | void
ngx_http_set_exten(ngx_http_request_t *r)
{
ngx_int_t i;
ngx_str_null(&r->exten);
for (i = r->uri.len - 1; i > 1; i--) {
if (r->uri.data[i] == '.' && r->uri.data[i - 1] != '/') {
r->exten.len = r->uri.len - i - 1;
r->exten.data = &r->uri.data[i + 1];
return;
} else if (r->uri.data[i] == '/') {
return;
}
}
return;
} | ['static ngx_int_t\nngx_http_upstream_process_headers(ngx_http_request_t *r, ngx_http_upstream_t *u)\n{\n ngx_str_t uri, args;\n ngx_uint_t i, flags;\n ngx_list_part_t *part;\n ngx_table_elt_t *h;\n ngx_http_upstream_header_t *hh;\n ngx_http_upstream_main_conf_t *umcf;\n umcf = ngx_http_get_module_main_conf(r, ngx_http_upstream_module);\n if (u->headers_in.x_accel_redirect\n && !(u->conf->ignore_headers & NGX_HTTP_UPSTREAM_IGN_XA_REDIRECT))\n {\n ngx_http_upstream_finalize_request(r, u, NGX_DECLINED);\n part = &u->headers_in.headers.part;\n h = part->elts;\n for (i = 0; ; i++) {\n if (i >= part->nelts) {\n if (part->next == NULL) {\n break;\n }\n part = part->next;\n h = part->elts;\n i = 0;\n }\n hh = ngx_hash_find(&umcf->headers_in_hash, h[i].hash,\n h[i].lowcase_key, h[i].key.len);\n if (hh && hh->redirect) {\n if (hh->copy_handler(r, &h[i], hh->conf) != NGX_OK) {\n ngx_http_finalize_request(r,\n NGX_HTTP_INTERNAL_SERVER_ERROR);\n return NGX_DONE;\n }\n }\n }\n uri = u->headers_in.x_accel_redirect->value;\n ngx_str_null(&args);\n flags = NGX_HTTP_LOG_UNSAFE;\n if (ngx_http_parse_unsafe_uri(r, &uri, &args, &flags) != NGX_OK) {\n ngx_http_finalize_request(r, NGX_HTTP_NOT_FOUND);\n return NGX_DONE;\n }\n if (r->method != NGX_HTTP_HEAD) {\n r->method = NGX_HTTP_GET;\n }\n ngx_http_internal_redirect(r, &uri, &args);\n ngx_http_finalize_request(r, NGX_DONE);\n return NGX_DONE;\n }\n part = &u->headers_in.headers.part;\n h = part->elts;\n for (i = 0; ; i++) {\n if (i >= part->nelts) {\n if (part->next == NULL) {\n break;\n }\n part = part->next;\n h = part->elts;\n i = 0;\n }\n if (ngx_hash_find(&u->conf->hide_headers_hash, h[i].hash,\n h[i].lowcase_key, h[i].key.len))\n {\n continue;\n }\n hh = ngx_hash_find(&umcf->headers_in_hash, h[i].hash,\n h[i].lowcase_key, h[i].key.len);\n if (hh) {\n if (hh->copy_handler(r, &h[i], hh->conf) != NGX_OK) {\n ngx_http_upstream_finalize_request(r, u,\n NGX_HTTP_INTERNAL_SERVER_ERROR);\n return NGX_DONE;\n }\n continue;\n }\n if (ngx_http_upstream_copy_header_line(r, &h[i], 0) != NGX_OK) {\n ngx_http_upstream_finalize_request(r, u,\n NGX_HTTP_INTERNAL_SERVER_ERROR);\n return NGX_DONE;\n }\n }\n if (r->headers_out.server && r->headers_out.server->value.data == NULL) {\n r->headers_out.server->hash = 0;\n }\n if (r->headers_out.date && r->headers_out.date->value.data == NULL) {\n r->headers_out.date->hash = 0;\n }\n r->headers_out.status = u->headers_in.status_n;\n r->headers_out.status_line = u->headers_in.status_line;\n r->headers_out.content_length_n = u->headers_in.content_length_n;\n u->length = -1;\n return NGX_OK;\n}', 'static void\nngx_http_upstream_finalize_request(ngx_http_request_t *r,\n ngx_http_upstream_t *u, ngx_int_t rc)\n{\n ngx_uint_t flush;\n ngx_time_t *tp;\n ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,\n "finalize http upstream request: %i", rc);\n if (u->cleanup) {\n *u->cleanup = NULL;\n u->cleanup = NULL;\n }\n if (u->resolved && u->resolved->ctx) {\n ngx_resolve_name_done(u->resolved->ctx);\n u->resolved->ctx = NULL;\n }\n if (u->state && u->state->response_sec) {\n tp = ngx_timeofday();\n u->state->response_sec = tp->sec - u->state->response_sec;\n u->state->response_msec = tp->msec - u->state->response_msec;\n if (u->pipe && u->pipe->read_length) {\n u->state->response_length = u->pipe->read_length;\n }\n }\n u->finalize_request(r, rc);\n if (u->peer.free && u->peer.sockaddr) {\n u->peer.free(&u->peer, u->peer.data, 0);\n u->peer.sockaddr = NULL;\n }\n if (u->peer.connection) {\n#if (NGX_HTTP_SSL)\n if (u->peer.connection->ssl) {\n u->peer.connection->ssl->no_wait_shutdown = 1;\n (void) ngx_ssl_shutdown(u->peer.connection);\n }\n#endif\n ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,\n "close http upstream connection: %d",\n u->peer.connection->fd);\n if (u->peer.connection->pool) {\n ngx_destroy_pool(u->peer.connection->pool);\n }\n ngx_close_connection(u->peer.connection);\n }\n u->peer.connection = NULL;\n if (u->pipe && u->pipe->temp_file) {\n ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,\n "http upstream temp fd: %d",\n u->pipe->temp_file->file.fd);\n }\n if (u->store && u->pipe && u->pipe->temp_file\n && u->pipe->temp_file->file.fd != NGX_INVALID_FILE)\n {\n if (ngx_delete_file(u->pipe->temp_file->file.name.data)\n == NGX_FILE_ERROR)\n {\n ngx_log_error(NGX_LOG_CRIT, r->connection->log, ngx_errno,\n ngx_delete_file_n " \\"%s\\" failed",\n u->pipe->temp_file->file.name.data);\n }\n }\n#if (NGX_HTTP_CACHE)\n if (r->cache) {\n if (u->cacheable) {\n if (rc == NGX_HTTP_BAD_GATEWAY || rc == NGX_HTTP_GATEWAY_TIME_OUT) {\n time_t valid;\n valid = ngx_http_file_cache_valid(u->conf->cache_valid, rc);\n if (valid) {\n r->cache->valid_sec = ngx_time() + valid;\n r->cache->error = rc;\n }\n }\n }\n ngx_http_file_cache_free(r->cache, u->pipe->temp_file);\n }\n#endif\n if (r->subrequest_in_memory\n && u->headers_in.status_n >= NGX_HTTP_SPECIAL_RESPONSE)\n {\n u->buffer.last = u->buffer.pos;\n }\n if (rc == NGX_DECLINED) {\n return;\n }\n r->connection->log->action = "sending to client";\n if (!u->header_sent\n || rc == NGX_HTTP_REQUEST_TIME_OUT\n || rc == NGX_HTTP_CLIENT_CLOSED_REQUEST)\n {\n ngx_http_finalize_request(r, rc);\n return;\n }\n flush = 0;\n if (rc >= NGX_HTTP_SPECIAL_RESPONSE) {\n rc = NGX_ERROR;\n flush = 1;\n }\n if (r->header_only) {\n ngx_http_finalize_request(r, rc);\n return;\n }\n if (rc == 0) {\n rc = ngx_http_send_special(r, NGX_HTTP_LAST);\n } else if (flush) {\n r->keepalive = 0;\n rc = ngx_http_send_special(r, NGX_HTTP_FLUSH);\n }\n ngx_http_finalize_request(r, rc);\n}', 'void\nngx_http_finalize_request(ngx_http_request_t *r, ngx_int_t rc)\n{\n ngx_connection_t *c;\n ngx_http_request_t *pr;\n ngx_http_core_loc_conf_t *clcf;\n c = r->connection;\n ngx_log_debug5(NGX_LOG_DEBUG_HTTP, c->log, 0,\n "http finalize request: %d, \\"%V?%V\\" a:%d, c:%d",\n rc, &r->uri, &r->args, r == c->data, r->main->count);\n if (rc == NGX_DONE) {\n ngx_http_finalize_connection(r);\n return;\n }\n if (rc == NGX_OK && r->filter_finalize) {\n c->error = 1;\n }\n if (rc == NGX_DECLINED) {\n r->content_handler = NULL;\n r->write_event_handler = ngx_http_core_run_phases;\n ngx_http_core_run_phases(r);\n return;\n }\n if (r != r->main && r->post_subrequest) {\n rc = r->post_subrequest->handler(r, r->post_subrequest->data, rc);\n }\n if (rc == NGX_ERROR\n || rc == NGX_HTTP_REQUEST_TIME_OUT\n || rc == NGX_HTTP_CLIENT_CLOSED_REQUEST\n || c->error)\n {\n if (ngx_http_post_action(r) == NGX_OK) {\n return;\n }\n if (r->main->blocked) {\n r->write_event_handler = ngx_http_request_finalizer;\n }\n ngx_http_terminate_request(r, rc);\n return;\n }\n if (rc >= NGX_HTTP_SPECIAL_RESPONSE\n || rc == NGX_HTTP_CREATED\n || rc == NGX_HTTP_NO_CONTENT)\n {\n if (rc == NGX_HTTP_CLOSE) {\n ngx_http_terminate_request(r, rc);\n return;\n }\n if (r == r->main) {\n if (c->read->timer_set) {\n ngx_del_timer(c->read);\n }\n if (c->write->timer_set) {\n ngx_del_timer(c->write);\n }\n }\n c->read->handler = ngx_http_request_handler;\n c->write->handler = ngx_http_request_handler;\n ngx_http_finalize_request(r, ngx_http_special_response_handler(r, rc));\n return;\n }\n if (r != r->main) {\n if (r->buffered || r->postponed) {\n if (ngx_http_set_write_handler(r) != NGX_OK) {\n ngx_http_terminate_request(r, 0);\n }\n return;\n }\n pr = r->parent;\n if (r == c->data) {\n r->main->count--;\n r->main->subrequests++;\n if (!r->logged) {\n clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);\n if (clcf->log_subrequest) {\n ngx_http_log_request(r);\n }\n r->logged = 1;\n } else {\n ngx_log_error(NGX_LOG_ALERT, c->log, 0,\n "subrequest: \\"%V?%V\\" logged again",\n &r->uri, &r->args);\n }\n r->done = 1;\n if (pr->postponed && pr->postponed->request == r) {\n pr->postponed = pr->postponed->next;\n }\n c->data = pr;\n } else {\n ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0,\n "http finalize non-active request: \\"%V?%V\\"",\n &r->uri, &r->args);\n r->write_event_handler = ngx_http_request_finalizer;\n if (r->waited) {\n r->done = 1;\n }\n }\n if (ngx_http_post_request(pr, NULL) != NGX_OK) {\n r->main->count++;\n ngx_http_terminate_request(r, 0);\n return;\n }\n ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0,\n "http wake parent request: \\"%V?%V\\"",\n &pr->uri, &pr->args);\n return;\n }\n if (r->buffered || c->buffered || r->postponed || r->blocked) {\n if (ngx_http_set_write_handler(r) != NGX_OK) {\n ngx_http_terminate_request(r, 0);\n }\n return;\n }\n if (r != c->data) {\n ngx_log_error(NGX_LOG_ALERT, c->log, 0,\n "http finalize non-active request: \\"%V?%V\\"",\n &r->uri, &r->args);\n return;\n }\n r->done = 1;\n r->write_event_handler = ngx_http_request_empty_handler;\n if (!r->post_action) {\n r->request_complete = 1;\n }\n if (ngx_http_post_action(r) == NGX_OK) {\n return;\n }\n if (c->read->timer_set) {\n ngx_del_timer(c->read);\n }\n if (c->write->timer_set) {\n c->write->delayed = 0;\n ngx_del_timer(c->write);\n }\n if (c->read->eof) {\n ngx_http_close_request(r, 0);\n return;\n }\n ngx_http_finalize_connection(r);\n}', 'ngx_int_t\nngx_http_special_response_handler(ngx_http_request_t *r, ngx_int_t error)\n{\n ngx_uint_t i, err;\n ngx_http_err_page_t *err_page;\n ngx_http_core_loc_conf_t *clcf;\n ngx_log_debug3(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,\n "http special response: %i, \\"%V?%V\\"",\n error, &r->uri, &r->args);\n r->err_status = error;\n if (r->keepalive) {\n switch (error) {\n case NGX_HTTP_BAD_REQUEST:\n case NGX_HTTP_REQUEST_ENTITY_TOO_LARGE:\n case NGX_HTTP_REQUEST_URI_TOO_LARGE:\n case NGX_HTTP_TO_HTTPS:\n case NGX_HTTPS_CERT_ERROR:\n case NGX_HTTPS_NO_CERT:\n case NGX_HTTP_INTERNAL_SERVER_ERROR:\n case NGX_HTTP_NOT_IMPLEMENTED:\n r->keepalive = 0;\n }\n }\n if (r->lingering_close) {\n switch (error) {\n case NGX_HTTP_BAD_REQUEST:\n case NGX_HTTP_TO_HTTPS:\n case NGX_HTTPS_CERT_ERROR:\n case NGX_HTTPS_NO_CERT:\n r->lingering_close = 0;\n }\n }\n r->headers_out.content_type.len = 0;\n clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);\n if (!r->error_page && clcf->error_pages && r->uri_changes != 0) {\n if (clcf->recursive_error_pages == 0) {\n r->error_page = 1;\n }\n err_page = clcf->error_pages->elts;\n for (i = 0; i < clcf->error_pages->nelts; i++) {\n if (err_page[i].status == error) {\n return ngx_http_send_error_page(r, &err_page[i]);\n }\n }\n }\n r->expect_tested = 1;\n if (ngx_http_discard_request_body(r) != NGX_OK) {\n r->keepalive = 0;\n }\n if (clcf->msie_refresh\n && r->headers_in.msie\n && (error == NGX_HTTP_MOVED_PERMANENTLY\n || error == NGX_HTTP_MOVED_TEMPORARILY))\n {\n return ngx_http_send_refresh(r);\n }\n if (error == NGX_HTTP_CREATED) {\n err = 0;\n } else if (error == NGX_HTTP_NO_CONTENT) {\n err = 0;\n } else if (error >= NGX_HTTP_MOVED_PERMANENTLY\n && error < NGX_HTTP_LAST_3XX)\n {\n err = error - NGX_HTTP_MOVED_PERMANENTLY + NGX_HTTP_OFF_3XX;\n } else if (error >= NGX_HTTP_BAD_REQUEST\n && error < NGX_HTTP_LAST_4XX)\n {\n err = error - NGX_HTTP_BAD_REQUEST + NGX_HTTP_OFF_4XX;\n } else if (error >= NGX_HTTP_NGINX_CODES\n && error < NGX_HTTP_LAST_5XX)\n {\n err = error - NGX_HTTP_NGINX_CODES + NGX_HTTP_OFF_5XX;\n switch (error) {\n case NGX_HTTP_TO_HTTPS:\n case NGX_HTTPS_CERT_ERROR:\n case NGX_HTTPS_NO_CERT:\n case NGX_HTTP_REQUEST_HEADER_TOO_LARGE:\n r->err_status = NGX_HTTP_BAD_REQUEST;\n break;\n }\n } else {\n err = 0;\n }\n return ngx_http_send_special_response(r, clcf, err);\n}', 'static ngx_int_t\nngx_http_send_error_page(ngx_http_request_t *r, ngx_http_err_page_t *err_page)\n{\n ngx_int_t overwrite;\n ngx_str_t uri, args;\n ngx_table_elt_t *location;\n ngx_http_core_loc_conf_t *clcf;\n overwrite = err_page->overwrite;\n if (overwrite && overwrite != NGX_HTTP_OK) {\n r->expect_tested = 1;\n }\n if (overwrite >= 0) {\n r->err_status = overwrite;\n }\n if (ngx_http_complex_value(r, &err_page->value, &uri) != NGX_OK) {\n return NGX_ERROR;\n }\n if (uri.data[0] == \'/\') {\n if (err_page->value.lengths) {\n ngx_http_split_args(r, &uri, &args);\n } else {\n args = err_page->args;\n }\n if (r->method != NGX_HTTP_HEAD) {\n r->method = NGX_HTTP_GET;\n r->method_name = ngx_http_get_name;\n }\n return ngx_http_internal_redirect(r, &uri, &args);\n }\n if (uri.data[0] == \'@\') {\n return ngx_http_named_location(r, &uri);\n }\n location = ngx_list_push(&r->headers_out.headers);\n if (location == NULL) {\n return NGX_ERROR;\n }\n if (overwrite != NGX_HTTP_MOVED_PERMANENTLY\n && overwrite != NGX_HTTP_MOVED_TEMPORARILY\n && overwrite != NGX_HTTP_SEE_OTHER\n && overwrite != NGX_HTTP_TEMPORARY_REDIRECT)\n {\n r->err_status = NGX_HTTP_MOVED_TEMPORARILY;\n }\n location->hash = 1;\n ngx_str_set(&location->key, "Location");\n location->value = uri;\n ngx_http_clear_location(r);\n r->headers_out.location = location;\n clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);\n if (clcf->msie_refresh && r->headers_in.msie) {\n return ngx_http_send_refresh(r);\n }\n return ngx_http_send_special_response(r, clcf, r->err_status\n - NGX_HTTP_MOVED_PERMANENTLY\n + NGX_HTTP_OFF_3XX);\n}', 'ngx_int_t\nngx_http_internal_redirect(ngx_http_request_t *r,\n ngx_str_t *uri, ngx_str_t *args)\n{\n ngx_http_core_srv_conf_t *cscf;\n r->uri_changes--;\n if (r->uri_changes == 0) {\n ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,\n "rewrite or internal redirection cycle "\n "while internally redirecting to \\"%V\\"", uri);\n r->main->count++;\n ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);\n return NGX_DONE;\n }\n r->uri = *uri;\n if (args) {\n r->args = *args;\n } else {\n ngx_str_null(&r->args);\n }\n ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,\n "internal redirect: \\"%V?%V\\"", uri, &r->args);\n ngx_http_set_exten(r);\n ngx_memzero(r->ctx, sizeof(void *) * ngx_http_max_module);\n cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);\n r->loc_conf = cscf->ctx->loc_conf;\n ngx_http_update_location_config(r);\n#if (NGX_HTTP_CACHE)\n r->cache = NULL;\n#endif\n r->internal = 1;\n r->valid_unparsed_uri = 0;\n r->add_uri_to_alias = 0;\n r->main->count++;\n ngx_http_handler(r);\n return NGX_DONE;\n}', "void\nngx_http_set_exten(ngx_http_request_t *r)\n{\n ngx_int_t i;\n ngx_str_null(&r->exten);\n for (i = r->uri.len - 1; i > 1; i--) {\n if (r->uri.data[i] == '.' && r->uri.data[i - 1] != '/') {\n r->exten.len = r->uri.len - i - 1;\n r->exten.data = &r->uri.data[i + 1];\n return;\n } else if (r->uri.data[i] == '/') {\n return;\n }\n }\n return;\n}"] |
26,940 | 0 | https://github.com/libav/libav/blob/a20639017bfca0490bb1799575714f22bf470b4f/libavcodec/mpegaudiodec.c/#L724 | 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}'] |
26,941 | 0 | https://github.com/libav/libav/blob/5228bcd8705523cee43e351e1a113e12aefcf837/libavcodec/vp8dsp.c/#L162 | static av_always_inline int normal_limit(uint8_t *p, int stride, int E, int I)
{
LOAD_PIXELS
return simple_limit(p, stride, 2*E+I)
&& FFABS(p3-p2) <= I && FFABS(p2-p1) <= I && FFABS(p1-p0) <= I
&& FFABS(q3-q2) <= I && FFABS(q2-q1) <= I && FFABS(q1-q0) <= I;
} | ['static av_always_inline int normal_limit(uint8_t *p, int stride, int E, int I)\n{\n LOAD_PIXELS\n return simple_limit(p, stride, 2*E+I)\n && FFABS(p3-p2) <= I && FFABS(p2-p1) <= I && FFABS(p1-p0) <= I\n && FFABS(q3-q2) <= I && FFABS(q2-q1) <= I && FFABS(q1-q0) <= I;\n}'] |
26,942 | 0 | https://github.com/openssl/openssl/blob/2864df8f9d3264e19b49a246e272fb513f4c1be3/crypto/bn/bn_ctx.c/#L270 | static unsigned int BN_STACK_pop(BN_STACK *st)
{
return st->indexes[--(st->depth)];
} | ['static int dsa_do_verify(const unsigned char *dgst, int dgst_len,\n DSA_SIG *sig, DSA *dsa)\n{\n BN_CTX *ctx;\n BIGNUM *u1, *u2, *t1;\n BN_MONT_CTX *mont = NULL;\n const BIGNUM *r, *s;\n int ret = -1, i;\n if (!dsa->p || !dsa->q || !dsa->g) {\n DSAerr(DSA_F_DSA_DO_VERIFY, DSA_R_MISSING_PARAMETERS);\n return -1;\n }\n i = BN_num_bits(dsa->q);\n if (i != 160 && i != 224 && i != 256) {\n DSAerr(DSA_F_DSA_DO_VERIFY, DSA_R_BAD_Q_VALUE);\n return -1;\n }\n if (BN_num_bits(dsa->p) > OPENSSL_DSA_MAX_MODULUS_BITS) {\n DSAerr(DSA_F_DSA_DO_VERIFY, DSA_R_MODULUS_TOO_LARGE);\n return -1;\n }\n u1 = BN_new();\n u2 = BN_new();\n t1 = BN_new();\n ctx = BN_CTX_new();\n if (u1 == NULL || u2 == NULL || t1 == NULL || ctx == NULL)\n goto err;\n DSA_SIG_get0(sig, &r, &s);\n if (BN_is_zero(r) || BN_is_negative(r) ||\n BN_ucmp(r, dsa->q) >= 0) {\n ret = 0;\n goto err;\n }\n if (BN_is_zero(s) || BN_is_negative(s) ||\n BN_ucmp(s, dsa->q) >= 0) {\n ret = 0;\n goto err;\n }\n if ((BN_mod_inverse(u2, s, dsa->q, ctx)) == NULL)\n goto err;\n if (dgst_len > (i >> 3))\n dgst_len = (i >> 3);\n if (BN_bin2bn(dgst, dgst_len, u1) == NULL)\n goto err;\n if (!BN_mod_mul(u1, u1, u2, dsa->q, ctx))\n goto err;\n if (!BN_mod_mul(u2, r, u2, dsa->q, ctx))\n goto err;\n if (dsa->flags & DSA_FLAG_CACHE_MONT_P) {\n mont = BN_MONT_CTX_set_locked(&dsa->method_mont_p,\n dsa->lock, dsa->p, ctx);\n if (!mont)\n goto err;\n }\n if (dsa->meth->dsa_mod_exp != NULL) {\n if (!dsa->meth->dsa_mod_exp(dsa, t1, dsa->g, u1, dsa->pub_key, u2,\n dsa->p, ctx, mont))\n goto err;\n } else {\n if (!BN_mod_exp2_mont(t1, dsa->g, u1, dsa->pub_key, u2, dsa->p, ctx,\n mont))\n goto err;\n }\n if (!BN_mod(u1, t1, dsa->q, ctx))\n goto err;\n ret = (BN_ucmp(u1, r) == 0);\n err:\n if (ret < 0)\n DSAerr(DSA_F_DSA_DO_VERIFY, ERR_R_BN_LIB);\n BN_CTX_free(ctx);\n BN_free(u1);\n BN_free(u2);\n BN_free(t1);\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}', '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}', '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_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 if (ctx == NULL)\n return;\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}'] |
26,943 | 0 | https://github.com/openssl/openssl/blob/b2b4dfcca6cf2230107a711f7af1cd8ee3f74229/crypto/asn1/asn1_lib.c/#L240 | int ASN1_object_size(int constructed, int length, int tag)
{
int ret = 1;
if (length < 0)
return -1;
if (tag >= 31) {
while (tag > 0) {
tag >>= 7;
ret++;
}
}
if (constructed == 2) {
ret += 3;
} else {
ret++;
if (length > 127) {
int tmplen = length;
while (tmplen > 0) {
tmplen >>= 8;
ret++;
}
}
}
if (ret >= INT_MAX - length)
return -1;
return ret + length;
} | ['int DSA_size(const DSA *r)\n{\n int ret, i;\n ASN1_INTEGER bs;\n unsigned char buf[4];\n i = BN_num_bits(r->q);\n bs.length = (i + 7) / 8;\n bs.data = buf;\n bs.type = V_ASN1_INTEGER;\n buf[0] = 0xff;\n i = i2d_ASN1_INTEGER(&bs, NULL);\n i += i;\n ret = ASN1_object_size(1, i, V_ASN1_SEQUENCE);\n return ret;\n}', 'IMPLEMENT_ASN1_STRING_FUNCTIONS(ASN1_INTEGER)', 'int ASN1_item_i2d(ASN1_VALUE *val, unsigned char **out, const ASN1_ITEM *it)\n{\n return asn1_item_flags_i2d(val, out, it, 0);\n}', 'static int asn1_item_flags_i2d(ASN1_VALUE *val, unsigned char **out,\n const ASN1_ITEM *it, int flags)\n{\n if (out && !*out) {\n unsigned char *p, *buf;\n int len;\n len = ASN1_item_ex_i2d(&val, NULL, it, -1, flags);\n if (len <= 0)\n return len;\n if ((buf = OPENSSL_malloc(len)) == NULL) {\n ASN1err(ASN1_F_ASN1_ITEM_FLAGS_I2D, ERR_R_MALLOC_FAILURE);\n return -1;\n }\n p = buf;\n ASN1_item_ex_i2d(&val, &p, it, -1, flags);\n *out = buf;\n return len;\n }\n return ASN1_item_ex_i2d(&val, out, it, -1, flags);\n}', 'int ASN1_object_size(int constructed, int length, int tag)\n{\n int ret = 1;\n if (length < 0)\n return -1;\n if (tag >= 31) {\n while (tag > 0) {\n tag >>= 7;\n ret++;\n }\n }\n if (constructed == 2) {\n ret += 3;\n } else {\n ret++;\n if (length > 127) {\n int tmplen = length;\n while (tmplen > 0) {\n tmplen >>= 8;\n ret++;\n }\n }\n }\n if (ret >= INT_MAX - length)\n return -1;\n return ret + length;\n}'] |
26,944 | 0 | https://github.com/libav/libav/blob/3b2fbe67bd63b00331db2a9b213f6d420418a312/libavcodec/opus_silk.c/#L826 | static inline void silk_stabilize_lsf(int16_t nlsf[16], int order, const uint16_t min_delta[17])
{
int pass, i;
for (pass = 0; pass < 20; pass++) {
int k, min_diff = 0;
for (i = 0; i < order+1; i++) {
int low = i != 0 ? nlsf[i-1] : 0;
int high = i != order ? nlsf[i] : 32768;
int diff = (high - low) - (min_delta[i]);
if (diff < min_diff) {
min_diff = diff;
k = i;
if (pass == 20)
break;
}
}
if (min_diff == 0)
return;
if (k == 0) {
nlsf[0] = min_delta[0];
} else if (k == order) {
nlsf[order-1] = 32768 - min_delta[order];
} else {
int min_center = 0, max_center = 32768, center_val;
for (i = 0; i < k; i++)
min_center += min_delta[i];
min_center += min_delta[k] >> 1;
for (i = order; i > k; i--)
max_center -= min_delta[k];
max_center -= min_delta[k] >> 1;
center_val = nlsf[k - 1] + nlsf[k];
center_val = (center_val >> 1) + (center_val & 1);
center_val = FFMIN(max_center, FFMAX(min_center, center_val));
nlsf[k - 1] = center_val - (min_delta[k] >> 1);
nlsf[k] = nlsf[k - 1] + min_delta[k];
}
}
for (i = 1; i < order; i++) {
int j, value = nlsf[i];
for (j = i - 1; j >= 0 && nlsf[j] > value; j--)
nlsf[j + 1] = nlsf[j];
nlsf[j + 1] = value;
}
if (nlsf[0] < min_delta[0])
nlsf[0] = min_delta[0];
for (i = 1; i < order; i++)
if (nlsf[i] < nlsf[i - 1] + min_delta[i])
nlsf[i] = nlsf[i - 1] + min_delta[i];
if (nlsf[order-1] > 32768 - min_delta[order])
nlsf[order-1] = 32768 - min_delta[order];
for (i = order-2; i >= 0; i--)
if (nlsf[i] > nlsf[i + 1] - min_delta[i+1])
nlsf[i] = nlsf[i + 1] - min_delta[i+1];
return;
} | ['static inline void silk_stabilize_lsf(int16_t nlsf[16], int order, const uint16_t min_delta[17])\n{\n int pass, i;\n for (pass = 0; pass < 20; pass++) {\n int k, min_diff = 0;\n for (i = 0; i < order+1; i++) {\n int low = i != 0 ? nlsf[i-1] : 0;\n int high = i != order ? nlsf[i] : 32768;\n int diff = (high - low) - (min_delta[i]);\n if (diff < min_diff) {\n min_diff = diff;\n k = i;\n if (pass == 20)\n break;\n }\n }\n if (min_diff == 0)\n return;\n if (k == 0) {\n nlsf[0] = min_delta[0];\n } else if (k == order) {\n nlsf[order-1] = 32768 - min_delta[order];\n } else {\n int min_center = 0, max_center = 32768, center_val;\n for (i = 0; i < k; i++)\n min_center += min_delta[i];\n min_center += min_delta[k] >> 1;\n for (i = order; i > k; i--)\n max_center -= min_delta[k];\n max_center -= min_delta[k] >> 1;\n center_val = nlsf[k - 1] + nlsf[k];\n center_val = (center_val >> 1) + (center_val & 1);\n center_val = FFMIN(max_center, FFMAX(min_center, center_val));\n nlsf[k - 1] = center_val - (min_delta[k] >> 1);\n nlsf[k] = nlsf[k - 1] + min_delta[k];\n }\n }\n for (i = 1; i < order; i++) {\n int j, value = nlsf[i];\n for (j = i - 1; j >= 0 && nlsf[j] > value; j--)\n nlsf[j + 1] = nlsf[j];\n nlsf[j + 1] = value;\n }\n if (nlsf[0] < min_delta[0])\n nlsf[0] = min_delta[0];\n for (i = 1; i < order; i++)\n if (nlsf[i] < nlsf[i - 1] + min_delta[i])\n nlsf[i] = nlsf[i - 1] + min_delta[i];\n if (nlsf[order-1] > 32768 - min_delta[order])\n nlsf[order-1] = 32768 - min_delta[order];\n for (i = order-2; i >= 0; i--)\n if (nlsf[i] > nlsf[i + 1] - min_delta[i+1])\n nlsf[i] = nlsf[i + 1] - min_delta[i+1];\n return;\n}'] |
26,945 | 0 | https://github.com/libav/libav/blob/fa0912fe50e59df72b7bf81f8838d2c6d9780343/ffmpeg.c/#L3658 | static void opt_target(const char *arg)
{
int norm = -1;
static const char *const frame_rates[] = {"25", "30000/1001", "24000/1001"};
if(!strncmp(arg, "pal-", 4)) {
norm = 0;
arg += 4;
} else if(!strncmp(arg, "ntsc-", 5)) {
norm = 1;
arg += 5;
} else if(!strncmp(arg, "film-", 5)) {
norm = 2;
arg += 5;
} else {
int fr;
fr = (int)(frame_rate.num * 1000.0 / frame_rate.den);
if(fr == 25000) {
norm = 0;
} else if((fr == 29970) || (fr == 23976)) {
norm = 1;
} else {
if(nb_input_files) {
int i, j;
for(j = 0; j < nb_input_files; j++) {
for(i = 0; i < input_files[j]->nb_streams; i++) {
AVCodecContext *c = input_files[j]->streams[i]->codec;
if(c->codec_type != CODEC_TYPE_VIDEO)
continue;
fr = c->time_base.den * 1000 / c->time_base.num;
if(fr == 25000) {
norm = 0;
break;
} else if((fr == 29970) || (fr == 23976)) {
norm = 1;
break;
}
}
if(norm >= 0)
break;
}
}
}
if(verbose && norm >= 0)
fprintf(stderr, "Assuming %s for target.\n", norm ? "NTSC" : "PAL");
}
if(norm < 0) {
fprintf(stderr, "Could not determine norm (PAL/NTSC/NTSC-Film) for target.\n");
fprintf(stderr, "Please prefix target with \"pal-\", \"ntsc-\" or \"film-\",\n");
fprintf(stderr, "or set a framerate with \"-r xxx\".\n");
av_exit(1);
}
if(!strcmp(arg, "vcd")) {
opt_video_codec("mpeg1video");
opt_audio_codec("mp2");
opt_format("vcd");
opt_frame_size(norm ? "352x240" : "352x288");
opt_frame_rate(NULL, frame_rates[norm]);
opt_default("g", norm ? "18" : "15");
opt_default("b", "1150000");
opt_default("maxrate", "1150000");
opt_default("minrate", "1150000");
opt_default("bufsize", "327680");
opt_default("ab", "224000");
audio_sample_rate = 44100;
audio_channels = 2;
opt_default("packetsize", "2324");
opt_default("muxrate", "1411200");
mux_preload= (36000+3*1200) / 90000.0;
} else if(!strcmp(arg, "svcd")) {
opt_video_codec("mpeg2video");
opt_audio_codec("mp2");
opt_format("svcd");
opt_frame_size(norm ? "480x480" : "480x576");
opt_frame_rate(NULL, frame_rates[norm]);
opt_default("g", norm ? "18" : "15");
opt_default("b", "2040000");
opt_default("maxrate", "2516000");
opt_default("minrate", "0");
opt_default("bufsize", "1835008");
opt_default("flags", "+scan_offset");
opt_default("ab", "224000");
audio_sample_rate = 44100;
opt_default("packetsize", "2324");
} else if(!strcmp(arg, "dvd")) {
opt_video_codec("mpeg2video");
opt_audio_codec("ac3");
opt_format("dvd");
opt_frame_size(norm ? "720x480" : "720x576");
opt_frame_rate(NULL, frame_rates[norm]);
opt_default("g", norm ? "18" : "15");
opt_default("b", "6000000");
opt_default("maxrate", "9000000");
opt_default("minrate", "0");
opt_default("bufsize", "1835008");
opt_default("packetsize", "2048");
opt_default("muxrate", "10080000");
opt_default("ab", "448000");
audio_sample_rate = 48000;
} else if(!strncmp(arg, "dv", 2)) {
opt_format("dv");
opt_frame_size(norm ? "720x480" : "720x576");
opt_frame_pix_fmt(!strncmp(arg, "dv50", 4) ? "yuv422p" :
(norm ? "yuv411p" : "yuv420p"));
opt_frame_rate(NULL, frame_rates[norm]);
audio_sample_rate = 48000;
audio_channels = 2;
} else {
fprintf(stderr, "Unknown target: %s\n", arg);
av_exit(1);
}
} | ['static void opt_target(const char *arg)\n{\n int norm = -1;\n static const char *const frame_rates[] = {"25", "30000/1001", "24000/1001"};\n if(!strncmp(arg, "pal-", 4)) {\n norm = 0;\n arg += 4;\n } else if(!strncmp(arg, "ntsc-", 5)) {\n norm = 1;\n arg += 5;\n } else if(!strncmp(arg, "film-", 5)) {\n norm = 2;\n arg += 5;\n } else {\n int fr;\n fr = (int)(frame_rate.num * 1000.0 / frame_rate.den);\n if(fr == 25000) {\n norm = 0;\n } else if((fr == 29970) || (fr == 23976)) {\n norm = 1;\n } else {\n if(nb_input_files) {\n int i, j;\n for(j = 0; j < nb_input_files; j++) {\n for(i = 0; i < input_files[j]->nb_streams; i++) {\n AVCodecContext *c = input_files[j]->streams[i]->codec;\n if(c->codec_type != CODEC_TYPE_VIDEO)\n continue;\n fr = c->time_base.den * 1000 / c->time_base.num;\n if(fr == 25000) {\n norm = 0;\n break;\n } else if((fr == 29970) || (fr == 23976)) {\n norm = 1;\n break;\n }\n }\n if(norm >= 0)\n break;\n }\n }\n }\n if(verbose && norm >= 0)\n fprintf(stderr, "Assuming %s for target.\\n", norm ? "NTSC" : "PAL");\n }\n if(norm < 0) {\n fprintf(stderr, "Could not determine norm (PAL/NTSC/NTSC-Film) for target.\\n");\n fprintf(stderr, "Please prefix target with \\"pal-\\", \\"ntsc-\\" or \\"film-\\",\\n");\n fprintf(stderr, "or set a framerate with \\"-r xxx\\".\\n");\n av_exit(1);\n }\n if(!strcmp(arg, "vcd")) {\n opt_video_codec("mpeg1video");\n opt_audio_codec("mp2");\n opt_format("vcd");\n opt_frame_size(norm ? "352x240" : "352x288");\n opt_frame_rate(NULL, frame_rates[norm]);\n opt_default("g", norm ? "18" : "15");\n opt_default("b", "1150000");\n opt_default("maxrate", "1150000");\n opt_default("minrate", "1150000");\n opt_default("bufsize", "327680");\n opt_default("ab", "224000");\n audio_sample_rate = 44100;\n audio_channels = 2;\n opt_default("packetsize", "2324");\n opt_default("muxrate", "1411200");\n mux_preload= (36000+3*1200) / 90000.0;\n } else if(!strcmp(arg, "svcd")) {\n opt_video_codec("mpeg2video");\n opt_audio_codec("mp2");\n opt_format("svcd");\n opt_frame_size(norm ? "480x480" : "480x576");\n opt_frame_rate(NULL, frame_rates[norm]);\n opt_default("g", norm ? "18" : "15");\n opt_default("b", "2040000");\n opt_default("maxrate", "2516000");\n opt_default("minrate", "0");\n opt_default("bufsize", "1835008");\n opt_default("flags", "+scan_offset");\n opt_default("ab", "224000");\n audio_sample_rate = 44100;\n opt_default("packetsize", "2324");\n } else if(!strcmp(arg, "dvd")) {\n opt_video_codec("mpeg2video");\n opt_audio_codec("ac3");\n opt_format("dvd");\n opt_frame_size(norm ? "720x480" : "720x576");\n opt_frame_rate(NULL, frame_rates[norm]);\n opt_default("g", norm ? "18" : "15");\n opt_default("b", "6000000");\n opt_default("maxrate", "9000000");\n opt_default("minrate", "0");\n opt_default("bufsize", "1835008");\n opt_default("packetsize", "2048");\n opt_default("muxrate", "10080000");\n opt_default("ab", "448000");\n audio_sample_rate = 48000;\n } else if(!strncmp(arg, "dv", 2)) {\n opt_format("dv");\n opt_frame_size(norm ? "720x480" : "720x576");\n opt_frame_pix_fmt(!strncmp(arg, "dv50", 4) ? "yuv422p" :\n (norm ? "yuv411p" : "yuv420p"));\n opt_frame_rate(NULL, frame_rates[norm]);\n audio_sample_rate = 48000;\n audio_channels = 2;\n } else {\n fprintf(stderr, "Unknown target: %s\\n", arg);\n av_exit(1);\n }\n}'] |
26,946 | 0 | https://github.com/libav/libav/blob/87b2b40a3342185e7e99aca8c34c4201629489ca/ffmpeg.c/#L3424 | static void new_video_stream(AVFormatContext *oc)
{
AVStream *st;
AVCodecContext *video_enc;
enum CodecID codec_id;
AVCodec *codec= NULL;
st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0);
if (!st) {
fprintf(stderr, "Could not alloc stream\n");
ffmpeg_exit(1);
}
output_codecs = grow_array(output_codecs, sizeof(*output_codecs), &nb_output_codecs, nb_output_codecs + 1);
if(!video_stream_copy){
if (video_codec_name) {
codec_id = find_codec_or_die(video_codec_name, AVMEDIA_TYPE_VIDEO, 1,
avcodec_opts[AVMEDIA_TYPE_VIDEO]->strict_std_compliance);
codec = avcodec_find_encoder_by_name(video_codec_name);
output_codecs[nb_output_codecs-1] = codec;
} else {
codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, AVMEDIA_TYPE_VIDEO);
codec = avcodec_find_encoder(codec_id);
}
}
avcodec_get_context_defaults3(st->codec, codec);
bitstream_filters[nb_output_files] =
grow_array(bitstream_filters[nb_output_files],
sizeof(*bitstream_filters[nb_output_files]),
&nb_bitstream_filters[nb_output_files], oc->nb_streams);
bitstream_filters[nb_output_files][oc->nb_streams - 1]= video_bitstream_filters;
video_bitstream_filters= NULL;
avcodec_thread_init(st->codec, thread_count);
video_enc = st->codec;
if(video_codec_tag)
video_enc->codec_tag= video_codec_tag;
if( (video_global_header&1)
|| (video_global_header==0 && (oc->oformat->flags & AVFMT_GLOBALHEADER))){
video_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
avcodec_opts[AVMEDIA_TYPE_VIDEO]->flags|= CODEC_FLAG_GLOBAL_HEADER;
}
if(video_global_header&2){
video_enc->flags2 |= CODEC_FLAG2_LOCAL_HEADER;
avcodec_opts[AVMEDIA_TYPE_VIDEO]->flags2|= CODEC_FLAG2_LOCAL_HEADER;
}
if (video_stream_copy) {
st->stream_copy = 1;
video_enc->codec_type = AVMEDIA_TYPE_VIDEO;
video_enc->sample_aspect_ratio =
st->sample_aspect_ratio = av_d2q(frame_aspect_ratio*frame_height/frame_width, 255);
} else {
const char *p;
int i;
AVRational fps= frame_rate.num ? frame_rate : (AVRational){25,1};
video_enc->codec_id = codec_id;
set_context_opts(video_enc, avcodec_opts[AVMEDIA_TYPE_VIDEO], AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM, codec);
if (codec && codec->supported_framerates && !force_fps)
fps = codec->supported_framerates[av_find_nearest_q_idx(fps, codec->supported_framerates)];
video_enc->time_base.den = fps.num;
video_enc->time_base.num = fps.den;
video_enc->width = frame_width;
video_enc->height = frame_height;
video_enc->sample_aspect_ratio = av_d2q(frame_aspect_ratio*video_enc->height/video_enc->width, 255);
video_enc->pix_fmt = frame_pix_fmt;
st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
choose_pixel_fmt(st, codec);
if (intra_only)
video_enc->gop_size = 0;
if (video_qscale || same_quality) {
video_enc->flags |= CODEC_FLAG_QSCALE;
video_enc->global_quality=
st->quality = FF_QP2LAMBDA * video_qscale;
}
if(intra_matrix)
video_enc->intra_matrix = intra_matrix;
if(inter_matrix)
video_enc->inter_matrix = inter_matrix;
p= video_rc_override_string;
for(i=0; p; i++){
int start, end, q;
int e=sscanf(p, "%d,%d,%d", &start, &end, &q);
if(e!=3){
fprintf(stderr, "error parsing rc_override\n");
ffmpeg_exit(1);
}
video_enc->rc_override=
av_realloc(video_enc->rc_override,
sizeof(RcOverride)*(i+1));
video_enc->rc_override[i].start_frame= start;
video_enc->rc_override[i].end_frame = end;
if(q>0){
video_enc->rc_override[i].qscale= q;
video_enc->rc_override[i].quality_factor= 1.0;
}
else{
video_enc->rc_override[i].qscale= 0;
video_enc->rc_override[i].quality_factor= -q/100.0;
}
p= strchr(p, '/');
if(p) p++;
}
video_enc->rc_override_count=i;
if (!video_enc->rc_initial_buffer_occupancy)
video_enc->rc_initial_buffer_occupancy = video_enc->rc_buffer_size*3/4;
video_enc->me_threshold= me_threshold;
video_enc->intra_dc_precision= intra_dc_precision - 8;
if (do_psnr)
video_enc->flags|= CODEC_FLAG_PSNR;
if (do_pass) {
if (do_pass == 1) {
video_enc->flags |= CODEC_FLAG_PASS1;
} else {
video_enc->flags |= CODEC_FLAG_PASS2;
}
}
}
if (video_language) {
av_metadata_set2(&st->metadata, "language", video_language, 0);
av_freep(&video_language);
}
video_disable = 0;
av_freep(&video_codec_name);
video_stream_copy = 0;
frame_pix_fmt = PIX_FMT_NONE;
} | ['static int opt_new_stream(const char *opt, const char *arg)\n{\n AVFormatContext *oc;\n if (nb_output_files <= 0) {\n fprintf(stderr, "At least one output file must be specified\\n");\n ffmpeg_exit(1);\n }\n oc = output_files[nb_output_files - 1];\n if (!strcmp(opt, "newvideo" )) new_video_stream (oc);\n else if (!strcmp(opt, "newaudio" )) new_audio_stream (oc);\n else if (!strcmp(opt, "newsubtitle")) new_subtitle_stream(oc);\n else av_assert0(0);\n return 0;\n}', 'static void new_video_stream(AVFormatContext *oc)\n{\n AVStream *st;\n AVCodecContext *video_enc;\n enum CodecID codec_id;\n AVCodec *codec= NULL;\n st = av_new_stream(oc, oc->nb_streams < nb_streamid_map ? streamid_map[oc->nb_streams] : 0);\n if (!st) {\n fprintf(stderr, "Could not alloc stream\\n");\n ffmpeg_exit(1);\n }\n output_codecs = grow_array(output_codecs, sizeof(*output_codecs), &nb_output_codecs, nb_output_codecs + 1);\n if(!video_stream_copy){\n if (video_codec_name) {\n codec_id = find_codec_or_die(video_codec_name, AVMEDIA_TYPE_VIDEO, 1,\n avcodec_opts[AVMEDIA_TYPE_VIDEO]->strict_std_compliance);\n codec = avcodec_find_encoder_by_name(video_codec_name);\n output_codecs[nb_output_codecs-1] = codec;\n } else {\n codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, AVMEDIA_TYPE_VIDEO);\n codec = avcodec_find_encoder(codec_id);\n }\n }\n avcodec_get_context_defaults3(st->codec, codec);\n bitstream_filters[nb_output_files] =\n grow_array(bitstream_filters[nb_output_files],\n sizeof(*bitstream_filters[nb_output_files]),\n &nb_bitstream_filters[nb_output_files], oc->nb_streams);\n bitstream_filters[nb_output_files][oc->nb_streams - 1]= video_bitstream_filters;\n video_bitstream_filters= NULL;\n avcodec_thread_init(st->codec, thread_count);\n video_enc = st->codec;\n if(video_codec_tag)\n video_enc->codec_tag= video_codec_tag;\n if( (video_global_header&1)\n || (video_global_header==0 && (oc->oformat->flags & AVFMT_GLOBALHEADER))){\n video_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;\n avcodec_opts[AVMEDIA_TYPE_VIDEO]->flags|= CODEC_FLAG_GLOBAL_HEADER;\n }\n if(video_global_header&2){\n video_enc->flags2 |= CODEC_FLAG2_LOCAL_HEADER;\n avcodec_opts[AVMEDIA_TYPE_VIDEO]->flags2|= CODEC_FLAG2_LOCAL_HEADER;\n }\n if (video_stream_copy) {\n st->stream_copy = 1;\n video_enc->codec_type = AVMEDIA_TYPE_VIDEO;\n video_enc->sample_aspect_ratio =\n st->sample_aspect_ratio = av_d2q(frame_aspect_ratio*frame_height/frame_width, 255);\n } else {\n const char *p;\n int i;\n AVRational fps= frame_rate.num ? frame_rate : (AVRational){25,1};\n video_enc->codec_id = codec_id;\n set_context_opts(video_enc, avcodec_opts[AVMEDIA_TYPE_VIDEO], AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM, codec);\n if (codec && codec->supported_framerates && !force_fps)\n fps = codec->supported_framerates[av_find_nearest_q_idx(fps, codec->supported_framerates)];\n video_enc->time_base.den = fps.num;\n video_enc->time_base.num = fps.den;\n video_enc->width = frame_width;\n video_enc->height = frame_height;\n video_enc->sample_aspect_ratio = av_d2q(frame_aspect_ratio*video_enc->height/video_enc->width, 255);\n video_enc->pix_fmt = frame_pix_fmt;\n st->sample_aspect_ratio = video_enc->sample_aspect_ratio;\n choose_pixel_fmt(st, codec);\n if (intra_only)\n video_enc->gop_size = 0;\n if (video_qscale || same_quality) {\n video_enc->flags |= CODEC_FLAG_QSCALE;\n video_enc->global_quality=\n st->quality = FF_QP2LAMBDA * video_qscale;\n }\n if(intra_matrix)\n video_enc->intra_matrix = intra_matrix;\n if(inter_matrix)\n video_enc->inter_matrix = inter_matrix;\n p= video_rc_override_string;\n for(i=0; p; i++){\n int start, end, q;\n int e=sscanf(p, "%d,%d,%d", &start, &end, &q);\n if(e!=3){\n fprintf(stderr, "error parsing rc_override\\n");\n ffmpeg_exit(1);\n }\n video_enc->rc_override=\n av_realloc(video_enc->rc_override,\n sizeof(RcOverride)*(i+1));\n video_enc->rc_override[i].start_frame= start;\n video_enc->rc_override[i].end_frame = end;\n if(q>0){\n video_enc->rc_override[i].qscale= q;\n video_enc->rc_override[i].quality_factor= 1.0;\n }\n else{\n video_enc->rc_override[i].qscale= 0;\n video_enc->rc_override[i].quality_factor= -q/100.0;\n }\n p= strchr(p, \'/\');\n if(p) p++;\n }\n video_enc->rc_override_count=i;\n if (!video_enc->rc_initial_buffer_occupancy)\n video_enc->rc_initial_buffer_occupancy = video_enc->rc_buffer_size*3/4;\n video_enc->me_threshold= me_threshold;\n video_enc->intra_dc_precision= intra_dc_precision - 8;\n if (do_psnr)\n video_enc->flags|= CODEC_FLAG_PSNR;\n if (do_pass) {\n if (do_pass == 1) {\n video_enc->flags |= CODEC_FLAG_PASS1;\n } else {\n video_enc->flags |= CODEC_FLAG_PASS2;\n }\n }\n }\n if (video_language) {\n av_metadata_set2(&st->metadata, "language", video_language, 0);\n av_freep(&video_language);\n }\n video_disable = 0;\n av_freep(&video_codec_name);\n video_stream_copy = 0;\n frame_pix_fmt = PIX_FMT_NONE;\n}', 'AVStream *av_new_stream(AVFormatContext *s, int id)\n{\n AVStream *st;\n int i;\n#if FF_API_MAX_STREAMS\n if (s->nb_streams >= MAX_STREAMS){\n av_log(s, AV_LOG_ERROR, "Too many streams\\n");\n return NULL;\n }\n#else\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#endif\n st = av_mallocz(sizeof(AVStream));\n if (!st)\n return NULL;\n st->codec= avcodec_alloc_context();\n if (s->iformat) {\n st->codec->bit_rate = 0;\n }\n st->index = s->nb_streams;\n st->id = id;\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}'] |
26,947 | 0 | https://github.com/libav/libav/blob/834259528b6cf593bf9544e3183b84b9b7880641/libavcodec/golomb.h/#L225 | static inline int svq3_get_se_golomb(GetBitContext *gb)
{
unsigned int buf;
OPEN_READER(re, gb);
UPDATE_CACHE(re, gb);
buf = GET_CACHE(re, gb);
if (buf & 0xAA800000) {
buf >>= 32 - 8;
LAST_SKIP_BITS(re, gb, ff_interleaved_golomb_vlc_len[buf]);
CLOSE_READER(re, gb);
return ff_interleaved_se_golomb_vlc_code[buf];
} else {
int log;
LAST_SKIP_BITS(re, gb, 8);
UPDATE_CACHE(re, gb);
buf |= 1 | (GET_CACHE(re, gb) >> 8);
if ((buf & 0xAAAAAAAA) == 0)
return INVALID_VLC;
for (log = 31; (buf & 0x80000000) == 0; log--)
buf = (buf << 2) - ((buf << log) >> (log - 1)) + (buf >> 30);
LAST_SKIP_BITS(re, gb, 63 - 2 * log - 8);
CLOSE_READER(re, gb);
return (signed) (((((buf << log) >> log) - 1) ^ -(buf & 0x1)) + 1) >> 1;
}
} | ['static inline int svq3_get_se_golomb(GetBitContext *gb)\n{\n unsigned int buf;\n OPEN_READER(re, gb);\n UPDATE_CACHE(re, gb);\n buf = GET_CACHE(re, gb);\n if (buf & 0xAA800000) {\n buf >>= 32 - 8;\n LAST_SKIP_BITS(re, gb, ff_interleaved_golomb_vlc_len[buf]);\n CLOSE_READER(re, gb);\n return ff_interleaved_se_golomb_vlc_code[buf];\n } else {\n int log;\n LAST_SKIP_BITS(re, gb, 8);\n UPDATE_CACHE(re, gb);\n buf |= 1 | (GET_CACHE(re, gb) >> 8);\n if ((buf & 0xAAAAAAAA) == 0)\n return INVALID_VLC;\n for (log = 31; (buf & 0x80000000) == 0; log--)\n buf = (buf << 2) - ((buf << log) >> (log - 1)) + (buf >> 30);\n LAST_SKIP_BITS(re, gb, 63 - 2 * log - 8);\n CLOSE_READER(re, gb);\n return (signed) (((((buf << log) >> log) - 1) ^ -(buf & 0x1)) + 1) >> 1;\n }\n}'] |
26,948 | 1 | https://github.com/openssl/openssl/blob/29eb7d9ce0488690cca532d0ecb4075b5ca59209/crypto/lhash/lhash.c/#L282 | void lh_doall_arg(LHASH *lh, void (*func)(), void *arg)
{
int i;
LHASH_NODE *a,*n;
for (i=lh->num_nodes-1; i>=0; i--)
{
a=lh->b[i];
while (a != NULL)
{
n=a->next;
func(a->data,arg);
a=n;
}
}
} | ['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 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\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\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 WINDOWS\n\t\t\tFD_SET(fileno(stdin),&readfds);\n#endif\n\t\t\tFD_SET(s,&readfds);\n#ifdef 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\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->sid_ctx_length=ctx->sid_ctx_length;\n\tmemcpy(&s->sid_ctx,&ctx->sid_ctx,sizeof(s->sid_ctx));\n\ts->verify_mode=ctx->verify_mode;\n\ts->verify_depth=ctx->verify_depth;\n\ts->verify_callback=ctx->default_verify_callback;\n\ts->purpose = ctx->purpose;\n\ts->trust = ctx->trust;\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->quiet_shutdown=ctx->quiet_shutdown;\n\ts->references=1;\n\ts->server=(ctx->method->ssl_accept == ssl_undefined_function)?0:1;\n\ts->options=ctx->options;\n\ts->mode=ctx->mode;\n\tSSL_clear(s);\n\tCRYPTO_new_ex_data(ssl_meth,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\tint state;\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\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,SSL_R_INTERNAL_ERROR);\n\t\treturn 0;\n\t\t}\n#endif\n\tstate=s->state;\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\ts->read_ahead=s->ctx->read_ahead;\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\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->first_packet=0;\n#if 1\n\tif ((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}', 'void SSL_free(SSL *s)\n\t{\n\tint i;\n\tif(s == NULL)\n\t return;\n\ti=CRYPTO_add(&s->references,-1,CRYPTO_LOCK_SSL);\n#ifdef REF_PRINT\n\tREF_PRINT("SSL",s);\n#endif\n\tif (i > 0) return;\n#ifdef REF_CHECK\n\tif (i < 0)\n\t\t{\n\t\tfprintf(stderr,"SSL_free, bad reference count\\n");\n\t\tabort();\n\t\t}\n#endif\n\tCRYPTO_free_ex_data(ssl_meth,(char *)s,&s->ex_data);\n\tif (s->bbio != NULL)\n\t\t{\n\t\tif (s->bbio == s->wbio)\n\t\t\t{\n\t\t\ts->wbio=BIO_pop(s->wbio);\n\t\t\t}\n\t\tBIO_free(s->bbio);\n\t\ts->bbio=NULL;\n\t\t}\n\tif (s->rbio != NULL)\n\t\tBIO_free_all(s->rbio);\n\tif ((s->wbio != NULL) && (s->wbio != s->rbio))\n\t\tBIO_free_all(s->wbio);\n\tif (s->init_buf != NULL) BUF_MEM_free(s->init_buf);\n\tif (s->cipher_list != NULL) sk_SSL_CIPHER_free(s->cipher_list);\n\tif (s->cipher_list_by_id != NULL) sk_SSL_CIPHER_free(s->cipher_list_by_id);\n\tif (s->session != NULL)\n\t\t{\n\t\tssl_clear_bad_session(s);\n\t\tSSL_SESSION_free(s->session);\n\t\t}\n\tssl_clear_cipher_ctx(s);\n\tif (s->cert != NULL) ssl_cert_free(s->cert);\n\tif (s->ctx) SSL_CTX_free(s->ctx);\n\tif (s->client_CA != NULL)\n\t\tsk_X509_NAME_pop_free(s->client_CA,X509_NAME_free);\n\tif (s->method != NULL) s->method->ssl_free(s);\n\tOPENSSL_free(s);\n\t}', 'void SSL_CTX_free(SSL_CTX *a)\n\t{\n\tint i;\n\tif (a == NULL) return;\n\ti=CRYPTO_add(&a->references,-1,CRYPTO_LOCK_SSL_CTX);\n#ifdef REF_PRINT\n\tREF_PRINT("SSL_CTX",a);\n#endif\n\tif (i > 0) return;\n#ifdef REF_CHECK\n\tif (i < 0)\n\t\t{\n\t\tfprintf(stderr,"SSL_CTX_free, bad reference count\\n");\n\t\tabort();\n\t\t}\n#endif\n\tCRYPTO_free_ex_data(ssl_ctx_meth,(char *)a,&a->ex_data);\n\tif (a->sessions != NULL)\n\t\t{\n\t\tSSL_CTX_flush_sessions(a,0);\n\t\tlh_free(a->sessions);\n\t\t}\n\tif (a->cert_store != NULL)\n\t\tX509_STORE_free(a->cert_store);\n\tif (a->cipher_list != NULL)\n\t\tsk_SSL_CIPHER_free(a->cipher_list);\n\tif (a->cipher_list_by_id != NULL)\n\t\tsk_SSL_CIPHER_free(a->cipher_list_by_id);\n\tif (a->cert != NULL)\n\t\tssl_cert_free(a->cert);\n\tif (a->client_CA != NULL)\n\t\tsk_X509_NAME_pop_free(a->client_CA,X509_NAME_free);\n\tif (a->extra_certs != NULL)\n\t\tsk_X509_pop_free(a->extra_certs,X509_free);\n\tif (a->comp_methods != NULL)\n\t\tsk_SSL_COMP_pop_free(a->comp_methods,SSL_COMP_free);\n\tOPENSSL_free(a);\n\t}', 'void X509_STORE_free(X509_STORE *vfy)\n\t{\n\tint i;\n\tSTACK_OF(X509_LOOKUP) *sk;\n\tX509_LOOKUP *lu;\n\tif(vfy == NULL)\n\t return;\n\tsk=vfy->get_cert_methods;\n\tfor (i=0; i<sk_X509_LOOKUP_num(sk); i++)\n\t\t{\n\t\tlu=sk_X509_LOOKUP_value(sk,i);\n\t\tX509_LOOKUP_shutdown(lu);\n\t\tX509_LOOKUP_free(lu);\n\t\t}\n\tsk_X509_LOOKUP_free(sk);\n\tCRYPTO_free_ex_data(x509_store_meth,vfy,&vfy->ex_data);\n\tlh_doall(vfy->certs,cleanup);\n\tlh_free(vfy->certs);\n\tOPENSSL_free(vfy);\n\t}', 'void lh_doall(LHASH *lh, void (*func)())\n\t{\n\tlh_doall_arg(lh,func,NULL);\n\t}', 'void lh_doall_arg(LHASH *lh, void (*func)(), void *arg)\n\t{\n\tint i;\n\tLHASH_NODE *a,*n;\n\tfor (i=lh->num_nodes-1; i>=0; i--)\n\t\t{\n\t\ta=lh->b[i];\n\t\twhile (a != NULL)\n\t\t\t{\n\t\t\tn=a->next;\n\t\t\tfunc(a->data,arg);\n\t\t\ta=n;\n\t\t\t}\n\t\t}\n\t}'] |
26,949 | 0 | https://github.com/openssl/openssl/blob/bc91494e064ebdcff68f987947f97e404fbca0b5/crypto/bn/bn_ctx.c/#L355 | static unsigned int BN_STACK_pop(BN_STACK *st)
{
return st->indexes[--(st->depth)];
} | ['static int ecdsa_sign_setup(EC_KEY *eckey, BN_CTX *ctx_in, BIGNUM **kinvp,\n\t\tBIGNUM **rp)\n{\n\tBN_CTX *ctx = NULL;\n\tBIGNUM\t *k = NULL, *r = NULL, *order = NULL, *X = NULL;\n\tEC_POINT *tmp_point=NULL;\n\tconst EC_GROUP *group;\n\tint \t ret = 0;\n\tif (eckey == NULL || (group = EC_KEY_get0_group(eckey)) == NULL)\n\t{\n\t\tECDSAerr(ECDSA_F_ECDSA_SIGN_SETUP, ERR_R_PASSED_NULL_PARAMETER);\n\t\treturn 0;\n\t}\n\tif (ctx_in == NULL)\n\t{\n\t\tif ((ctx = BN_CTX_new()) == NULL)\n\t\t{\n\t\t\tECDSAerr(ECDSA_F_ECDSA_SIGN_SETUP,ERR_R_MALLOC_FAILURE);\n\t\t\treturn 0;\n\t\t}\n\t}\n\telse\n\t\tctx = ctx_in;\n\tk = BN_new();\n\tr = BN_new();\n\torder = BN_new();\n\tX = BN_new();\n\tif (!k || !r || !order || !X)\n\t{\n\t\tECDSAerr(ECDSA_F_ECDSA_SIGN_SETUP, ERR_R_MALLOC_FAILURE);\n\t\tgoto err;\n\t}\n\tif ((tmp_point = EC_POINT_new(group)) == NULL)\n\t{\n\t\tECDSAerr(ECDSA_F_ECDSA_SIGN_SETUP, ERR_R_EC_LIB);\n\t\tgoto err;\n\t}\n\tif (!EC_GROUP_get_order(group, order, ctx))\n\t{\n\t\tECDSAerr(ECDSA_F_ECDSA_SIGN_SETUP, ERR_R_EC_LIB);\n\t\tgoto err;\n\t}\n\tdo\n\t{\n\t\tdo\n\t\t\tif (!BN_rand_range(k, order))\n\t\t\t{\n\t\t\t\tECDSAerr(ECDSA_F_ECDSA_SIGN_SETUP,\n\t\t\t\t ECDSA_R_RANDOM_NUMBER_GENERATION_FAILED);\n\t\t\t\tgoto err;\n\t\t\t}\n\t\twhile (BN_is_zero(k));\n\t\tif (!EC_POINT_mul(group, tmp_point, k, NULL, NULL, ctx))\n\t\t{\n\t\t\tECDSAerr(ECDSA_F_ECDSA_SIGN_SETUP, ERR_R_EC_LIB);\n\t\t\tgoto err;\n\t\t}\n\t\tif (EC_METHOD_get_field_type(EC_GROUP_method_of(group)) == NID_X9_62_prime_field)\n\t\t{\n\t\t\tif (!EC_POINT_get_affine_coordinates_GFp(group,\n\t\t\t\ttmp_point, X, NULL, ctx))\n\t\t\t{\n\t\t\t\tECDSAerr(ECDSA_F_ECDSA_SIGN_SETUP,ERR_R_EC_LIB);\n\t\t\t\tgoto err;\n\t\t\t}\n\t\t}\n#ifndef OPENSSL_NO_EC2M\n\t\telse\n\t\t{\n\t\t\tif (!EC_POINT_get_affine_coordinates_GF2m(group,\n\t\t\t\ttmp_point, X, NULL, ctx))\n\t\t\t{\n\t\t\t\tECDSAerr(ECDSA_F_ECDSA_SIGN_SETUP,ERR_R_EC_LIB);\n\t\t\t\tgoto err;\n\t\t\t}\n\t\t}\n#endif\n\t\tif (!BN_nnmod(r, X, order, ctx))\n\t\t{\n\t\t\tECDSAerr(ECDSA_F_ECDSA_SIGN_SETUP, ERR_R_BN_LIB);\n\t\t\tgoto err;\n\t\t}\n\t}\n\twhile (BN_is_zero(r));\n\tif (!BN_mod_inverse(k, k, order, ctx))\n\t{\n\t\tECDSAerr(ECDSA_F_ECDSA_SIGN_SETUP, ERR_R_BN_LIB);\n\t\tgoto err;\n\t}\n\tif (*rp != NULL)\n\t\tBN_clear_free(*rp);\n\tif (*kinvp != NULL)\n\t\tBN_clear_free(*kinvp);\n\t*rp = r;\n\t*kinvp = k;\n\tret = 1;\nerr:\n\tif (!ret)\n\t{\n\t\tif (k != NULL) BN_clear_free(k);\n\t\tif (r != NULL) BN_clear_free(r);\n\t}\n\tif (ctx_in == NULL)\n\t\tBN_CTX_free(ctx);\n\tif (order != NULL)\n\t\tBN_free(order);\n\tif (tmp_point != NULL)\n\t\tEC_POINT_free(tmp_point);\n\tif (X)\n\t\tBN_clear_free(X);\n\treturn(ret);\n}', '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 (num->top > 0 && num->d[num->top - 1] == 0)\n\t\t{\n\t\tBNerr(BN_F_BN_DIV,BN_R_NOT_INITIALIZED);\n\t\treturn 0;\n\t\t}\n\tbn_check_top(num);\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(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 || tmp == NULL || snum == NULL)\n\t\tgoto 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;\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\t{\n\t\t\tBN_ULONG ql, qh;\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\t\t\t}\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}', 'static 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(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;\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\t{\n\t\t\tBN_ULONG ql, qh;\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\t\t\t}\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_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}', '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}'] |
26,950 | 0 | https://github.com/openssl/openssl/blob/ea32151f7b9353f8906188d007c6893704ac17bb/crypto/err/err.c/#L697 | void ERR_set_error_data(char *data, int flags)
{
ERR_STATE *es;
int i;
es = ERR_get_state();
i = es->top;
if (i == 0)
i = ERR_NUM_ERRORS - 1;
err_clear_data(es, i);
es->err_data[i] = data;
es->err_data_flags[i] = flags;
} | ['void ERR_set_error_data(char *data, int flags)\n{\n ERR_STATE *es;\n int i;\n es = ERR_get_state();\n i = es->top;\n if (i == 0)\n i = ERR_NUM_ERRORS - 1;\n err_clear_data(es, i);\n es->err_data[i] = data;\n es->err_data_flags[i] = flags;\n}', 'ERR_STATE *ERR_get_state(void)\n{\n ERR_STATE *state = NULL;\n CRYPTO_THREAD_run_once(&err_init, err_do_init);\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}'] |
26,951 | 0 | https://github.com/openssl/openssl/blob/dd616752a1ad3a4cae469ea9ceac50141debe32b/crypto/bn/bn_ctx.c/#L353 | static unsigned int BN_STACK_pop(BN_STACK *st)
{
return st->indexes[--(st->depth)];
} | ['int BN_X931_generate_prime_ex(BIGNUM *p, BIGNUM *p1, BIGNUM *p2,\n\t\t\tBIGNUM *Xp1, BIGNUM *Xp2,\n\t\t\tconst BIGNUM *Xp,\n\t\t\tconst BIGNUM *e, BN_CTX *ctx,\n\t\t\tBN_GENCB *cb)\n\t{\n\tint ret = 0;\n\tBN_CTX_start(ctx);\n\tif (!Xp1)\n\t\tXp1 = BN_CTX_get(ctx);\n\tif (!Xp2)\n\t\tXp2 = BN_CTX_get(ctx);\n\tif (!BN_rand(Xp1, 101, 0, 0))\n\t\tgoto error;\n\tif (!BN_rand(Xp2, 101, 0, 0))\n\t\tgoto error;\n\tif (!BN_X931_derive_prime_ex(p, p1, p2, Xp, Xp1, Xp2, e, ctx, cb))\n\t\tgoto error;\n\tret = 1;\n\terror:\n\tBN_CTX_end(ctx);\n\treturn ret;\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}', '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}'] |
26,952 | 0 | https://github.com/openssl/openssl/blob/5d1c09de1f2736e1d4b1877206d08455ec75f558/crypto/bn/bn_sqr.c/#L114 | 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);
} | ['static int create_new_vbase(char *userid, char *password)\n{\n BIGNUM *verifier = NULL, *salt = NULL;\n const SRP_gN *lgN = NULL;\n SRP_user_pwd *user_pwd = NULL;\n int ret = 0;\n lgN = SRP_get_default_gN(NULL);\n if (!TEST_ptr(lgN))\n goto end;\n if (!TEST_true(SRP_create_verifier_BN(userid, password, &salt, &verifier,\n lgN->N, lgN->g)))\n goto end;\n user_pwd = OPENSSL_zalloc(sizeof(*user_pwd));\n if (!TEST_ptr(user_pwd))\n goto end;\n user_pwd->N = lgN->N;\n user_pwd->g = lgN->g;\n user_pwd->id = OPENSSL_strdup(userid);\n if (!TEST_ptr(user_pwd->id))\n goto end;\n user_pwd->v = verifier;\n user_pwd->s = salt;\n verifier = salt = NULL;\n if (sk_SRP_user_pwd_insert(vbase->users_pwd, user_pwd, 0) == 0)\n goto end;\n user_pwd = NULL;\n ret = 1;\nend:\n SRP_user_pwd_free(user_pwd);\n BN_free(salt);\n BN_free(verifier);\n return ret;\n}', 'int SRP_create_verifier_BN(const char *user, const char *pass, BIGNUM **salt,\n BIGNUM **verifier, const BIGNUM *N,\n const BIGNUM *g)\n{\n int result = 0;\n BIGNUM *x = NULL;\n BN_CTX *bn_ctx = BN_CTX_new();\n unsigned char tmp2[MAX_LEN];\n BIGNUM *salttmp = NULL;\n if ((user == NULL) ||\n (pass == NULL) ||\n (salt == NULL) ||\n (verifier == NULL) || (N == NULL) || (g == NULL) || (bn_ctx == NULL))\n goto err;\n if (*salt == NULL) {\n if (RAND_bytes(tmp2, SRP_RANDOM_SALT_LEN) <= 0)\n goto err;\n salttmp = BN_bin2bn(tmp2, SRP_RANDOM_SALT_LEN, NULL);\n } else {\n salttmp = *salt;\n }\n x = SRP_Calc_x(salttmp, user, pass);\n *verifier = BN_new();\n if (*verifier == NULL)\n goto err;\n if (!BN_mod_exp(*verifier, g, x, N, bn_ctx)) {\n BN_clear_free(*verifier);\n goto err;\n }\n result = 1;\n *salt = salttmp;\n err:\n if (salt != NULL && *salt != salttmp)\n BN_clear_free(salttmp);\n BN_clear_free(x);\n BN_CTX_free(bn_ctx);\n return result;\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_get_flags(a, BN_FLG_CONSTTIME) == 0)\n && (BN_get_flags(m, 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(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_is_zero(aa)) {\n BN_zero(rr);\n ret = 1;\n goto err;\n }\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_to_mont_fixed_top(BIGNUM *r, const BIGNUM *a, BN_MONT_CTX *mont,\n BN_CTX *ctx)\n{\n return bn_mul_mont_fixed_top(r, a, &(mont->RR), mont, ctx);\n}', 'int bn_mul_mont_fixed_top(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 int num = mont->N.top;\n#if defined(OPENSSL_BN_ASM_MONT) && defined(MONT_WORD)\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 r->flags |= BN_FLG_FIXED_TOP;\n return 1;\n }\n }\n#endif\n if ((a->top + b->top) > 2 * num)\n return 0;\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 ret = 1;\n err:\n BN_CTX_end(ctx);\n return ret;\n}', 'int BN_sqr(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 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(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}'] |
26,953 | 0 | https://github.com/libav/libav/blob/3ec394ea823c2a6e65a6abbdb2041ce1c66964f8/libavcodec/vc1.c/#L654 | static void vc1_mc_4mv_chroma(VC1Context *v)
{
MpegEncContext *s = &v->s;
DSPContext *dsp = &v->s.dsp;
uint8_t *srcU, *srcV;
int uvdxy, uvmx, uvmy, uvsrc_x, uvsrc_y;
int i, idx, tx = 0, ty = 0;
int mvx[4], mvy[4], intra[4];
static const int count[16] = { 0, 1, 1, 2, 1, 2, 2, 3, 1, 2, 2, 3, 2, 3, 3, 4};
if(!v->s.last_picture.data[0])return;
if(s->flags & CODEC_FLAG_GRAY) return;
for(i = 0; i < 4; i++) {
mvx[i] = s->mv[0][i][0];
mvy[i] = s->mv[0][i][1];
intra[i] = v->mb_type[0][s->block_index[i]];
}
idx = (intra[3] << 3) | (intra[2] << 2) | (intra[1] << 1) | intra[0];
if(!idx) {
tx = median4(mvx[0], mvx[1], mvx[2], mvx[3]);
ty = median4(mvy[0], mvy[1], mvy[2], mvy[3]);
} else if(count[idx] == 1) {
switch(idx) {
case 0x1:
tx = mid_pred(mvx[1], mvx[2], mvx[3]);
ty = mid_pred(mvy[1], mvy[2], mvy[3]);
break;
case 0x2:
tx = mid_pred(mvx[0], mvx[2], mvx[3]);
ty = mid_pred(mvy[0], mvy[2], mvy[3]);
break;
case 0x4:
tx = mid_pred(mvx[0], mvx[1], mvx[3]);
ty = mid_pred(mvy[0], mvy[1], mvy[3]);
break;
case 0x8:
tx = mid_pred(mvx[0], mvx[1], mvx[2]);
ty = mid_pred(mvy[0], mvy[1], mvy[2]);
break;
}
} else if(count[idx] == 2) {
int t1 = 0, t2 = 0;
for(i=0; i<3;i++) if(!intra[i]) {t1 = i; break;}
for(i= t1+1; i<4; i++)if(!intra[i]) {t2 = i; break;}
tx = (mvx[t1] + mvx[t2]) / 2;
ty = (mvy[t1] + mvy[t2]) / 2;
} else {
s->current_picture.motion_val[1][s->block_index[0]][0] = 0;
s->current_picture.motion_val[1][s->block_index[0]][1] = 0;
return;
}
s->current_picture.motion_val[1][s->block_index[0]][0] = tx;
s->current_picture.motion_val[1][s->block_index[0]][1] = ty;
uvmx = (tx + ((tx&3) == 3)) >> 1;
uvmy = (ty + ((ty&3) == 3)) >> 1;
if(v->fastuvmc) {
uvmx = uvmx + ((uvmx<0)?(uvmx&1):-(uvmx&1));
uvmy = uvmy + ((uvmy<0)?(uvmy&1):-(uvmy&1));
}
uvsrc_x = s->mb_x * 8 + (uvmx >> 2);
uvsrc_y = s->mb_y * 8 + (uvmy >> 2);
if(v->profile != PROFILE_ADVANCED){
uvsrc_x = av_clip(uvsrc_x, -8, s->mb_width * 8);
uvsrc_y = av_clip(uvsrc_y, -8, s->mb_height * 8);
}else{
uvsrc_x = av_clip(uvsrc_x, -8, s->avctx->coded_width >> 1);
uvsrc_y = av_clip(uvsrc_y, -8, s->avctx->coded_height >> 1);
}
srcU = s->last_picture.data[1] + uvsrc_y * s->uvlinesize + uvsrc_x;
srcV = s->last_picture.data[2] + uvsrc_y * s->uvlinesize + uvsrc_x;
if(v->rangeredfrm || (v->mv_mode == MV_PMODE_INTENSITY_COMP)
|| (unsigned)uvsrc_x > (s->h_edge_pos >> 1) - 9
|| (unsigned)uvsrc_y > (s->v_edge_pos >> 1) - 9){
ff_emulated_edge_mc(s->edge_emu_buffer , srcU, s->uvlinesize, 8+1, 8+1,
uvsrc_x, uvsrc_y, s->h_edge_pos >> 1, s->v_edge_pos >> 1);
ff_emulated_edge_mc(s->edge_emu_buffer + 16, srcV, s->uvlinesize, 8+1, 8+1,
uvsrc_x, uvsrc_y, s->h_edge_pos >> 1, s->v_edge_pos >> 1);
srcU = s->edge_emu_buffer;
srcV = s->edge_emu_buffer + 16;
if(v->rangeredfrm) {
int i, j;
uint8_t *src, *src2;
src = srcU; src2 = srcV;
for(j = 0; j < 9; j++) {
for(i = 0; i < 9; i++) {
src[i] = ((src[i] - 128) >> 1) + 128;
src2[i] = ((src2[i] - 128) >> 1) + 128;
}
src += s->uvlinesize;
src2 += s->uvlinesize;
}
}
if(v->mv_mode == MV_PMODE_INTENSITY_COMP) {
int i, j;
uint8_t *src, *src2;
src = srcU; src2 = srcV;
for(j = 0; j < 9; j++) {
for(i = 0; i < 9; i++) {
src[i] = v->lutuv[src[i]];
src2[i] = v->lutuv[src2[i]];
}
src += s->uvlinesize;
src2 += s->uvlinesize;
}
}
}
uvdxy = ((uvmy & 3) << 2) | (uvmx & 3);
uvmx = (uvmx&3)<<1;
uvmy = (uvmy&3)<<1;
if(!v->rnd){
dsp->put_h264_chroma_pixels_tab[0](s->dest[1], srcU, s->uvlinesize, 8, uvmx, uvmy);
dsp->put_h264_chroma_pixels_tab[0](s->dest[2], srcV, s->uvlinesize, 8, uvmx, uvmy);
}else{
dsp->put_no_rnd_h264_chroma_pixels_tab[0](s->dest[1], srcU, s->uvlinesize, 8, uvmx, uvmy);
dsp->put_no_rnd_h264_chroma_pixels_tab[0](s->dest[2], srcV, s->uvlinesize, 8, uvmx, uvmy);
}
} | ['static void vc1_mc_4mv_chroma(VC1Context *v)\n{\n MpegEncContext *s = &v->s;\n DSPContext *dsp = &v->s.dsp;\n uint8_t *srcU, *srcV;\n int uvdxy, uvmx, uvmy, uvsrc_x, uvsrc_y;\n int i, idx, tx = 0, ty = 0;\n int mvx[4], mvy[4], intra[4];\n static const int count[16] = { 0, 1, 1, 2, 1, 2, 2, 3, 1, 2, 2, 3, 2, 3, 3, 4};\n if(!v->s.last_picture.data[0])return;\n if(s->flags & CODEC_FLAG_GRAY) return;\n for(i = 0; i < 4; i++) {\n mvx[i] = s->mv[0][i][0];\n mvy[i] = s->mv[0][i][1];\n intra[i] = v->mb_type[0][s->block_index[i]];\n }\n idx = (intra[3] << 3) | (intra[2] << 2) | (intra[1] << 1) | intra[0];\n if(!idx) {\n tx = median4(mvx[0], mvx[1], mvx[2], mvx[3]);\n ty = median4(mvy[0], mvy[1], mvy[2], mvy[3]);\n } else if(count[idx] == 1) {\n switch(idx) {\n case 0x1:\n tx = mid_pred(mvx[1], mvx[2], mvx[3]);\n ty = mid_pred(mvy[1], mvy[2], mvy[3]);\n break;\n case 0x2:\n tx = mid_pred(mvx[0], mvx[2], mvx[3]);\n ty = mid_pred(mvy[0], mvy[2], mvy[3]);\n break;\n case 0x4:\n tx = mid_pred(mvx[0], mvx[1], mvx[3]);\n ty = mid_pred(mvy[0], mvy[1], mvy[3]);\n break;\n case 0x8:\n tx = mid_pred(mvx[0], mvx[1], mvx[2]);\n ty = mid_pred(mvy[0], mvy[1], mvy[2]);\n break;\n }\n } else if(count[idx] == 2) {\n int t1 = 0, t2 = 0;\n for(i=0; i<3;i++) if(!intra[i]) {t1 = i; break;}\n for(i= t1+1; i<4; i++)if(!intra[i]) {t2 = i; break;}\n tx = (mvx[t1] + mvx[t2]) / 2;\n ty = (mvy[t1] + mvy[t2]) / 2;\n } else {\n s->current_picture.motion_val[1][s->block_index[0]][0] = 0;\n s->current_picture.motion_val[1][s->block_index[0]][1] = 0;\n return;\n }\n s->current_picture.motion_val[1][s->block_index[0]][0] = tx;\n s->current_picture.motion_val[1][s->block_index[0]][1] = ty;\n uvmx = (tx + ((tx&3) == 3)) >> 1;\n uvmy = (ty + ((ty&3) == 3)) >> 1;\n if(v->fastuvmc) {\n uvmx = uvmx + ((uvmx<0)?(uvmx&1):-(uvmx&1));\n uvmy = uvmy + ((uvmy<0)?(uvmy&1):-(uvmy&1));\n }\n uvsrc_x = s->mb_x * 8 + (uvmx >> 2);\n uvsrc_y = s->mb_y * 8 + (uvmy >> 2);\n if(v->profile != PROFILE_ADVANCED){\n uvsrc_x = av_clip(uvsrc_x, -8, s->mb_width * 8);\n uvsrc_y = av_clip(uvsrc_y, -8, s->mb_height * 8);\n }else{\n uvsrc_x = av_clip(uvsrc_x, -8, s->avctx->coded_width >> 1);\n uvsrc_y = av_clip(uvsrc_y, -8, s->avctx->coded_height >> 1);\n }\n srcU = s->last_picture.data[1] + uvsrc_y * s->uvlinesize + uvsrc_x;\n srcV = s->last_picture.data[2] + uvsrc_y * s->uvlinesize + uvsrc_x;\n if(v->rangeredfrm || (v->mv_mode == MV_PMODE_INTENSITY_COMP)\n || (unsigned)uvsrc_x > (s->h_edge_pos >> 1) - 9\n || (unsigned)uvsrc_y > (s->v_edge_pos >> 1) - 9){\n ff_emulated_edge_mc(s->edge_emu_buffer , srcU, s->uvlinesize, 8+1, 8+1,\n uvsrc_x, uvsrc_y, s->h_edge_pos >> 1, s->v_edge_pos >> 1);\n ff_emulated_edge_mc(s->edge_emu_buffer + 16, srcV, s->uvlinesize, 8+1, 8+1,\n uvsrc_x, uvsrc_y, s->h_edge_pos >> 1, s->v_edge_pos >> 1);\n srcU = s->edge_emu_buffer;\n srcV = s->edge_emu_buffer + 16;\n if(v->rangeredfrm) {\n int i, j;\n uint8_t *src, *src2;\n src = srcU; src2 = srcV;\n for(j = 0; j < 9; j++) {\n for(i = 0; i < 9; i++) {\n src[i] = ((src[i] - 128) >> 1) + 128;\n src2[i] = ((src2[i] - 128) >> 1) + 128;\n }\n src += s->uvlinesize;\n src2 += s->uvlinesize;\n }\n }\n if(v->mv_mode == MV_PMODE_INTENSITY_COMP) {\n int i, j;\n uint8_t *src, *src2;\n src = srcU; src2 = srcV;\n for(j = 0; j < 9; j++) {\n for(i = 0; i < 9; i++) {\n src[i] = v->lutuv[src[i]];\n src2[i] = v->lutuv[src2[i]];\n }\n src += s->uvlinesize;\n src2 += s->uvlinesize;\n }\n }\n }\n uvdxy = ((uvmy & 3) << 2) | (uvmx & 3);\n uvmx = (uvmx&3)<<1;\n uvmy = (uvmy&3)<<1;\n if(!v->rnd){\n dsp->put_h264_chroma_pixels_tab[0](s->dest[1], srcU, s->uvlinesize, 8, uvmx, uvmy);\n dsp->put_h264_chroma_pixels_tab[0](s->dest[2], srcV, s->uvlinesize, 8, uvmx, uvmy);\n }else{\n dsp->put_no_rnd_h264_chroma_pixels_tab[0](s->dest[1], srcU, s->uvlinesize, 8, uvmx, uvmy);\n dsp->put_no_rnd_h264_chroma_pixels_tab[0](s->dest[2], srcV, s->uvlinesize, 8, uvmx, uvmy);\n }\n}'] |
26,954 | 0 | https://github.com/openssl/openssl/blob/e02c519cd32a55e6ad39a0cfbeeda775f9115f28/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;
} | ['static int rsa_ossl_public_decrypt(int flen, const unsigned char *from,\n unsigned char *to, RSA *rsa, int padding)\n{\n BIGNUM *f, *ret;\n int i, num = 0, r = -1;\n unsigned char *buf = NULL;\n BN_CTX *ctx = NULL;\n if (BN_num_bits(rsa->n) > OPENSSL_RSA_MAX_MODULUS_BITS) {\n RSAerr(RSA_F_RSA_OSSL_PUBLIC_DECRYPT, RSA_R_MODULUS_TOO_LARGE);\n return -1;\n }\n if (BN_ucmp(rsa->n, rsa->e) <= 0) {\n RSAerr(RSA_F_RSA_OSSL_PUBLIC_DECRYPT, RSA_R_BAD_E_VALUE);\n return -1;\n }\n if (BN_num_bits(rsa->n) > OPENSSL_RSA_SMALL_MODULUS_BITS) {\n if (BN_num_bits(rsa->e) > OPENSSL_RSA_MAX_PUBEXP_BITS) {\n RSAerr(RSA_F_RSA_OSSL_PUBLIC_DECRYPT, RSA_R_BAD_E_VALUE);\n return -1;\n }\n }\n if ((ctx = BN_CTX_new()) == NULL)\n goto err;\n BN_CTX_start(ctx);\n f = BN_CTX_get(ctx);\n ret = BN_CTX_get(ctx);\n num = BN_num_bytes(rsa->n);\n buf = OPENSSL_malloc(num);\n if (ret == NULL || buf == NULL) {\n RSAerr(RSA_F_RSA_OSSL_PUBLIC_DECRYPT, ERR_R_MALLOC_FAILURE);\n goto err;\n }\n if (flen > num) {\n RSAerr(RSA_F_RSA_OSSL_PUBLIC_DECRYPT, RSA_R_DATA_GREATER_THAN_MOD_LEN);\n goto err;\n }\n if (BN_bin2bn(from, flen, f) == NULL)\n goto err;\n if (BN_ucmp(f, rsa->n) >= 0) {\n RSAerr(RSA_F_RSA_OSSL_PUBLIC_DECRYPT,\n RSA_R_DATA_TOO_LARGE_FOR_MODULUS);\n goto err;\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 (!rsa->meth->bn_mod_exp(ret, f, rsa->e, rsa->n, ctx,\n rsa->_method_mod_n))\n goto err;\n if ((padding == RSA_X931_PADDING) && ((bn_get_words(ret)[0] & 0xf) != 12))\n if (!BN_sub(ret, rsa->n, ret))\n goto err;\n i = BN_bn2binpad(ret, buf, num);\n switch (padding) {\n case RSA_PKCS1_PADDING:\n r = RSA_padding_check_PKCS1_type_1(to, num, buf, i, num);\n break;\n case RSA_X931_PADDING:\n r = RSA_padding_check_X931(to, num, buf, i, num);\n break;\n case RSA_NO_PADDING:\n memcpy(to, buf, (r = i));\n break;\n default:\n RSAerr(RSA_F_RSA_OSSL_PUBLIC_DECRYPT, RSA_R_UNKNOWN_PADDING_TYPE);\n goto err;\n }\n if (r < 0)\n RSAerr(RSA_F_RSA_OSSL_PUBLIC_DECRYPT, RSA_R_PADDING_CHECK_FAILED);\n err:\n if (ctx != NULL)\n BN_CTX_end(ctx);\n BN_CTX_free(ctx);\n OPENSSL_clear_free(buf, num);\n return r;\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_is_zero(const BIGNUM *a)\n{\n return a->top == 0;\n}', 'BN_MONT_CTX *BN_MONT_CTX_set_locked(BN_MONT_CTX **pmont, CRYPTO_RWLOCK *lock,\n const BIGNUM *mod, BN_CTX *ctx)\n{\n BN_MONT_CTX *ret;\n CRYPTO_THREAD_read_lock(lock);\n ret = *pmont;\n CRYPTO_THREAD_unlock(lock);\n if (ret)\n return ret;\n ret = BN_MONT_CTX_new();\n if (ret == NULL)\n return NULL;\n if (!BN_MONT_CTX_set(ret, mod, ctx)) {\n BN_MONT_CTX_free(ret);\n return NULL;\n }\n CRYPTO_THREAD_write_lock(lock);\n if (*pmont) {\n BN_MONT_CTX_free(ret);\n ret = *pmont;\n } else\n *pmont = ret;\n CRYPTO_THREAD_unlock(lock);\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_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}', 'BIGNUM *bn_wexpand(BIGNUM *a, int words)\n{\n return (words <= a->dmax) ? a : bn_expand2(a, words);\n}'] |
26,955 | 0 | https://github.com/libav/libav/blob/cb4fe49294157019c9b8090ac41cd598c4a7f553/libavcodec/bgmc.c/#L478 | int ff_bgmc_init(AVCodecContext *avctx, uint8_t **cf_lut, int **cf_lut_status)
{
*cf_lut = av_malloc(sizeof(*cf_lut ) * LUT_BUFF * 16 * LUT_SIZE);
*cf_lut_status = av_malloc(sizeof(*cf_lut_status) * LUT_BUFF);
if (!cf_lut || !cf_lut_status) {
ff_bgmc_end(cf_lut, cf_lut_status);
av_log(avctx, AV_LOG_ERROR, "Allocating buffer memory failed.\n");
return AVERROR(ENOMEM);
} else {
memset(*cf_lut_status, -1, sizeof(*cf_lut_status) * LUT_BUFF);
}
return 0;
} | ['int ff_bgmc_init(AVCodecContext *avctx, uint8_t **cf_lut, int **cf_lut_status)\n{\n *cf_lut = av_malloc(sizeof(*cf_lut ) * LUT_BUFF * 16 * LUT_SIZE);\n *cf_lut_status = av_malloc(sizeof(*cf_lut_status) * LUT_BUFF);\n if (!cf_lut || !cf_lut_status) {\n ff_bgmc_end(cf_lut, cf_lut_status);\n av_log(avctx, AV_LOG_ERROR, "Allocating buffer memory failed.\\n");\n return AVERROR(ENOMEM);\n } else {\n memset(*cf_lut_status, -1, sizeof(*cf_lut_status) * LUT_BUFF);\n }\n return 0;\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}'] |
26,956 | 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)];
} | ['int ec_GFp_simple_group_check_discriminant(const EC_GROUP *group, BN_CTX *ctx)\n{\n int ret = 0;\n BIGNUM *a, *b, *order, *tmp_1, *tmp_2;\n const BIGNUM *p = group->field;\n BN_CTX *new_ctx = NULL;\n if (ctx == NULL) {\n ctx = new_ctx = BN_CTX_new();\n if (ctx == NULL) {\n ECerr(EC_F_EC_GFP_SIMPLE_GROUP_CHECK_DISCRIMINANT,\n ERR_R_MALLOC_FAILURE);\n goto err;\n }\n }\n BN_CTX_start(ctx);\n a = BN_CTX_get(ctx);\n b = BN_CTX_get(ctx);\n tmp_1 = BN_CTX_get(ctx);\n tmp_2 = BN_CTX_get(ctx);\n order = BN_CTX_get(ctx);\n if (order == NULL)\n goto err;\n if (group->meth->field_decode) {\n if (!group->meth->field_decode(group, a, group->a, ctx))\n goto err;\n if (!group->meth->field_decode(group, b, group->b, ctx))\n goto err;\n } else {\n if (!BN_copy(a, group->a))\n goto err;\n if (!BN_copy(b, group->b))\n goto err;\n }\n if (BN_is_zero(a)) {\n if (BN_is_zero(b))\n goto err;\n } else if (!BN_is_zero(b)) {\n if (!BN_mod_sqr(tmp_1, a, p, ctx))\n goto err;\n if (!BN_mod_mul(tmp_2, tmp_1, a, p, ctx))\n goto err;\n if (!BN_lshift(tmp_1, tmp_2, 2))\n goto err;\n if (!BN_mod_sqr(tmp_2, b, p, ctx))\n goto err;\n if (!BN_mul_word(tmp_2, 27))\n goto err;\n if (!BN_mod_add(a, tmp_1, tmp_2, p, ctx))\n goto err;\n if (BN_is_zero(a))\n goto err;\n }\n ret = 1;\n err:\n if (ctx != NULL)\n BN_CTX_end(ctx);\n BN_CTX_free(new_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_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}', '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}'] |
26,957 | 0 | https://github.com/openssl/openssl/blob/3fd5ece39b59d938d0cc84b8e5148d19044d15cf/ssl/record/ssl3_record_tls13.c/#L96 | int tls13_enc(SSL *s, SSL3_RECORD *recs, size_t n_recs, int send)
{
EVP_CIPHER_CTX *ctx;
unsigned char iv[EVP_MAX_IV_LENGTH];
size_t ivlen, taglen, offset, loop;
unsigned char *staticiv;
unsigned char *seq;
int lenu, lenf;
SSL3_RECORD *rec = &recs[0];
uint32_t alg_enc;
if (n_recs != 1) {
return -1;
}
if (send) {
ctx = s->enc_write_ctx;
staticiv = s->write_iv;
seq = RECORD_LAYER_get_write_sequence(&s->rlayer);
} else {
ctx = s->enc_read_ctx;
staticiv = s->read_iv;
seq = RECORD_LAYER_get_read_sequence(&s->rlayer);
}
if (ctx == NULL) {
memmove(rec->data, rec->input, rec->length);
rec->input = rec->data;
return 1;
}
ivlen = EVP_CIPHER_CTX_iv_length(ctx);
if (s->early_data_state == SSL_EARLY_DATA_WRITING
|| s->early_data_state == SSL_EARLY_DATA_WRITE_RETRY) {
alg_enc = s->session->cipher->algorithm_enc;
} else {
assert(s->s3->tmp.new_cipher != NULL);
if (s->s3->tmp.new_cipher == NULL)
return -1;
alg_enc = s->s3->tmp.new_cipher->algorithm_enc;
}
if (alg_enc & SSL_AESCCM) {
if (alg_enc & (SSL_AES128CCM8 | SSL_AES256CCM8))
taglen = EVP_CCM8_TLS_TAG_LEN;
else
taglen = EVP_CCM_TLS_TAG_LEN;
if (send && EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_AEAD_SET_TAG, taglen,
NULL) <= 0)
return -1;
} else if (alg_enc & SSL_AESGCM) {
taglen = EVP_GCM_TLS_TAG_LEN;
} else if (alg_enc & SSL_CHACHA20) {
taglen = EVP_CHACHAPOLY_TLS_TAG_LEN;
} else {
return -1;
}
if (!send) {
if (rec->length < taglen + 1)
return 0;
rec->length -= taglen;
}
if (ivlen < SEQ_NUM_SIZE) {
return -1;
}
offset = ivlen - SEQ_NUM_SIZE;
memcpy(iv, staticiv, offset);
for (loop = 0; loop < SEQ_NUM_SIZE; loop++)
iv[offset + loop] = staticiv[offset + loop] ^ seq[loop];
for (loop = SEQ_NUM_SIZE; loop > 0; loop--) {
++seq[loop - 1];
if (seq[loop - 1] != 0)
break;
}
if (loop == 0) {
return -1;
}
if (EVP_CipherInit_ex(ctx, NULL, NULL, NULL, iv, send) <= 0
|| (!send && EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_AEAD_SET_TAG,
taglen,
rec->data + rec->length) <= 0)
|| EVP_CipherUpdate(ctx, rec->data, &lenu, rec->input,
(unsigned int)rec->length) <= 0
|| EVP_CipherFinal_ex(ctx, rec->data + lenu, &lenf) <= 0
|| (size_t)(lenu + lenf) != rec->length) {
return -1;
}
if (send) {
if (EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_AEAD_GET_TAG, taglen,
rec->data + rec->length) <= 0)
return -1;
rec->length += taglen;
}
return 1;
} | ['static int test_tls13_encryption(void)\n{\n SSL_CTX *ctx = NULL;\n SSL *s = NULL;\n SSL3_RECORD rec;\n unsigned char *key = NULL, *iv = NULL, *seq = NULL;\n const EVP_CIPHER *ciph = EVP_aes_128_gcm();\n int ret = 0;\n size_t ivlen, ctr;\n rec.data = NULL;\n ctx = SSL_CTX_new(TLS_method());\n if (!TEST_ptr(ctx)) {\n TEST_info("Failed creating SSL_CTX");\n goto err;\n }\n s = SSL_new(ctx);\n if (!TEST_ptr(s)) {\n TEST_info("Failed creating SSL");\n goto err;\n }\n s->enc_read_ctx = EVP_CIPHER_CTX_new();\n if (!TEST_ptr(s->enc_read_ctx))\n goto err;\n s->enc_write_ctx = EVP_CIPHER_CTX_new();\n if (!TEST_ptr(s->enc_write_ctx))\n goto err;\n s->s3->tmp.new_cipher = SSL_CIPHER_find(s, TLS13_AES_128_GCM_SHA256_BYTES);\n if (!TEST_ptr(s->s3->tmp.new_cipher)) {\n TEST_info("Failed to find cipher");\n goto err;\n }\n for (ctr = 0; ctr < OSSL_NELEM(refdata); ctr++) {\n ivlen = EVP_CIPHER_iv_length(ciph);\n if (!load_record(&rec, &refdata[ctr], &key, s->read_iv, ivlen,\n RECORD_LAYER_get_read_sequence(&s->rlayer))) {\n TEST_error("Failed loading key into EVP_CIPHER_CTX");\n goto err;\n }\n memcpy(RECORD_LAYER_get_write_sequence(&s->rlayer),\n RECORD_LAYER_get_read_sequence(&s->rlayer), SEQ_NUM_SIZE);\n memcpy(s->write_iv, s->read_iv, ivlen);\n if (EVP_CipherInit_ex(s->enc_write_ctx, ciph, NULL, key, NULL, 1) <= 0\n || EVP_CipherInit_ex(s->enc_read_ctx, ciph, NULL, key, NULL, 0)\n <= 0) {\n TEST_error("Failed loading key into EVP_CIPHER_CTX\\n");\n goto err;\n }\n if (!TEST_size_t_eq(tls13_enc(s, &rec, 1, 1), 1)) {\n TEST_info("Failed to encrypt record %"OSSLzu"", ctr);\n goto err;\n }\n if (!TEST_true(test_record(&rec, &refdata[ctr], 1))) {\n TEST_info("Record %"OSSLzu" encryption test failed", ctr);\n goto err;\n }\n if (!TEST_int_eq(tls13_enc(s, &rec, 1, 0), 1)) {\n TEST_info("Failed to decrypt record %"OSSLzu"", ctr);\n goto err;\n }\n if (!TEST_true(test_record(&rec, &refdata[ctr], 0))) {\n TEST_info("Record %"OSSLzu" decryption test failed", ctr);\n goto err;\n }\n OPENSSL_free(rec.data);\n OPENSSL_free(key);\n OPENSSL_free(iv);\n OPENSSL_free(seq);\n rec.data = NULL;\n key = NULL;\n iv = NULL;\n seq = NULL;\n }\n fprintf(stderr, "PASS: %"OSSLzu" records tested\\n", ctr);\n ret = 1;\n err:\n OPENSSL_free(rec.data);\n OPENSSL_free(key);\n OPENSSL_free(iv);\n OPENSSL_free(seq);\n SSL_free(s);\n SSL_CTX_free(ctx);\n return ret;\n}', 'static int load_record(SSL3_RECORD *rec, RECORD_DATA *recd, unsigned char **key,\n unsigned char *iv, size_t ivlen, unsigned char *seq)\n{\n unsigned char *pt = NULL, *sq = NULL, *ivtmp = NULL;\n size_t ptlen;\n *key = OPENSSL_hexstr2buf(recd->key, NULL);\n ivtmp = OPENSSL_hexstr2buf(recd->iv, NULL);\n sq = OPENSSL_hexstr2buf(recd->seq, NULL);\n pt = multihexstr2buf(recd->plaintext, &ptlen);\n if (*key == NULL || ivtmp == NULL || sq == NULL || pt == NULL)\n goto err;\n rec->data = rec->input = OPENSSL_malloc(ptlen + EVP_GCM_TLS_TAG_LEN);\n if (rec->data == NULL)\n goto err;\n rec->length = ptlen;\n memcpy(rec->data, pt, ptlen);\n OPENSSL_free(pt);\n memcpy(seq, sq, SEQ_NUM_SIZE);\n OPENSSL_free(sq);\n memcpy(iv, ivtmp, ivlen);\n OPENSSL_free(ivtmp);\n return 1;\n err:\n OPENSSL_free(*key);\n *key = NULL;\n OPENSSL_free(ivtmp);\n OPENSSL_free(sq);\n OPENSSL_free(pt);\n return 0;\n}', 'int tls13_enc(SSL *s, SSL3_RECORD *recs, size_t n_recs, int send)\n{\n EVP_CIPHER_CTX *ctx;\n unsigned char iv[EVP_MAX_IV_LENGTH];\n size_t ivlen, taglen, offset, loop;\n unsigned char *staticiv;\n unsigned char *seq;\n int lenu, lenf;\n SSL3_RECORD *rec = &recs[0];\n uint32_t alg_enc;\n if (n_recs != 1) {\n return -1;\n }\n if (send) {\n ctx = s->enc_write_ctx;\n staticiv = s->write_iv;\n seq = RECORD_LAYER_get_write_sequence(&s->rlayer);\n } else {\n ctx = s->enc_read_ctx;\n staticiv = s->read_iv;\n seq = RECORD_LAYER_get_read_sequence(&s->rlayer);\n }\n if (ctx == NULL) {\n memmove(rec->data, rec->input, rec->length);\n rec->input = rec->data;\n return 1;\n }\n ivlen = EVP_CIPHER_CTX_iv_length(ctx);\n if (s->early_data_state == SSL_EARLY_DATA_WRITING\n || s->early_data_state == SSL_EARLY_DATA_WRITE_RETRY) {\n alg_enc = s->session->cipher->algorithm_enc;\n } else {\n assert(s->s3->tmp.new_cipher != NULL);\n if (s->s3->tmp.new_cipher == NULL)\n return -1;\n alg_enc = s->s3->tmp.new_cipher->algorithm_enc;\n }\n if (alg_enc & SSL_AESCCM) {\n if (alg_enc & (SSL_AES128CCM8 | SSL_AES256CCM8))\n taglen = EVP_CCM8_TLS_TAG_LEN;\n else\n taglen = EVP_CCM_TLS_TAG_LEN;\n if (send && EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_AEAD_SET_TAG, taglen,\n NULL) <= 0)\n return -1;\n } else if (alg_enc & SSL_AESGCM) {\n taglen = EVP_GCM_TLS_TAG_LEN;\n } else if (alg_enc & SSL_CHACHA20) {\n taglen = EVP_CHACHAPOLY_TLS_TAG_LEN;\n } else {\n return -1;\n }\n if (!send) {\n if (rec->length < taglen + 1)\n return 0;\n rec->length -= taglen;\n }\n if (ivlen < SEQ_NUM_SIZE) {\n return -1;\n }\n offset = ivlen - SEQ_NUM_SIZE;\n memcpy(iv, staticiv, offset);\n for (loop = 0; loop < SEQ_NUM_SIZE; loop++)\n iv[offset + loop] = staticiv[offset + loop] ^ seq[loop];\n for (loop = SEQ_NUM_SIZE; loop > 0; loop--) {\n ++seq[loop - 1];\n if (seq[loop - 1] != 0)\n break;\n }\n if (loop == 0) {\n return -1;\n }\n if (EVP_CipherInit_ex(ctx, NULL, NULL, NULL, iv, send) <= 0\n || (!send && EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_AEAD_SET_TAG,\n taglen,\n rec->data + rec->length) <= 0)\n || EVP_CipherUpdate(ctx, rec->data, &lenu, rec->input,\n (unsigned int)rec->length) <= 0\n || EVP_CipherFinal_ex(ctx, rec->data + lenu, &lenf) <= 0\n || (size_t)(lenu + lenf) != rec->length) {\n return -1;\n }\n if (send) {\n if (EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_AEAD_GET_TAG, taglen,\n rec->data + rec->length) <= 0)\n return -1;\n rec->length += taglen;\n }\n return 1;\n}'] |
26,958 | 0 | https://github.com/openssl/openssl/blob/6a69e8694af23dae1d1927813932f4296d133416/test/evp_test.c/#L1545 | static int pbe_test_init(struct evp_test *t, const char *alg)
{
struct pbe_data *pdat;
int pbe_type = 0;
if (strcmp(alg, "scrypt") == 0) {
#ifndef OPENSSL_NO_SCRYPT
pbe_type = PBE_TYPE_SCRYPT;
#else
t->skip = 1;
return 1;
#endif
} else if (strcmp(alg, "pbkdf2") == 0) {
pbe_type = PBE_TYPE_PBKDF2;
} else if (strcmp(alg, "pkcs12") == 0) {
pbe_type = PBE_TYPE_PKCS12;
} else {
fprintf(stderr, "Unknown pbe algorithm %s\n", alg);
}
pdat = OPENSSL_malloc(sizeof(*pdat));
pdat->pbe_type = pbe_type;
pdat->pass = NULL;
pdat->salt = NULL;
pdat->N = 0;
pdat->r = 0;
pdat->p = 0;
pdat->maxmem = 0;
pdat->id = 0;
pdat->iter = 0;
pdat->md = NULL;
t->data = pdat;
return 1;
} | ['static int pbe_test_init(struct evp_test *t, const char *alg)\n{\n struct pbe_data *pdat;\n int pbe_type = 0;\n if (strcmp(alg, "scrypt") == 0) {\n#ifndef OPENSSL_NO_SCRYPT\n pbe_type = PBE_TYPE_SCRYPT;\n#else\n t->skip = 1;\n return 1;\n#endif\n } else if (strcmp(alg, "pbkdf2") == 0) {\n pbe_type = PBE_TYPE_PBKDF2;\n } else if (strcmp(alg, "pkcs12") == 0) {\n pbe_type = PBE_TYPE_PKCS12;\n } else {\n fprintf(stderr, "Unknown pbe algorithm %s\\n", alg);\n }\n pdat = OPENSSL_malloc(sizeof(*pdat));\n pdat->pbe_type = pbe_type;\n pdat->pass = NULL;\n pdat->salt = NULL;\n pdat->N = 0;\n pdat->r = 0;\n pdat->p = 0;\n pdat->maxmem = 0;\n pdat->id = 0;\n pdat->iter = 0;\n pdat->md = NULL;\n t->data = pdat;\n return 1;\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}'] |
26,959 | 0 | https://gitlab.com/libtiff/libtiff/blob/06337fdcfd19f2e5dbe99209540dbe34315f29eb/libtiff/tif_write.c/#L238 | tmsize_t
TIFFWriteEncodedStrip(TIFF* tif, uint32 strip, void* data, tmsize_t cc)
{
static const char module[] = "TIFFWriteEncodedStrip";
TIFFDirectory *td = &tif->tif_dir;
uint16 sample;
if (!WRITECHECKSTRIPS(tif, module))
return ((tmsize_t) -1);
if (strip >= td->td_nstrips) {
if (td->td_planarconfig == PLANARCONFIG_SEPARATE) {
TIFFErrorExt(tif->tif_clientdata, module,
"Can not grow image by strips when using separate planes");
return ((tmsize_t) -1);
}
if (!TIFFGrowStrips(tif, 1, module))
return ((tmsize_t) -1);
td->td_stripsperimage =
TIFFhowmany_32(td->td_imagelength, td->td_rowsperstrip);
}
if (!BUFFERCHECK(tif))
return ((tmsize_t) -1);
tif->tif_flags |= TIFF_BUF4WRITE;
tif->tif_curstrip = strip;
if( !_TIFFReserveLargeEnoughWriteBuffer(tif, strip) ) {
return ((tmsize_t)(-1));
}
tif->tif_rawcc = 0;
tif->tif_rawcp = tif->tif_rawdata;
if (td->td_stripsperimage == 0) {
TIFFErrorExt(tif->tif_clientdata, module, "Zero strips per image");
return ((tmsize_t) -1);
}
tif->tif_row = (strip % td->td_stripsperimage) * td->td_rowsperstrip;
if ((tif->tif_flags & TIFF_CODERSETUP) == 0) {
if (!(*tif->tif_setupencode)(tif))
return ((tmsize_t) -1);
tif->tif_flags |= TIFF_CODERSETUP;
}
tif->tif_flags &= ~TIFF_POSTENCODE;
if( td->td_compression == COMPRESSION_NONE )
{
tif->tif_postdecode( tif, (uint8*) data, cc );
if (!isFillOrder(tif, td->td_fillorder) &&
(tif->tif_flags & TIFF_NOBITREV) == 0)
TIFFReverseBits((uint8*) data, cc);
if (cc > 0 &&
!TIFFAppendToStrip(tif, strip, (uint8*) data, cc))
return ((tmsize_t) -1);
return (cc);
}
sample = (uint16)(strip / td->td_stripsperimage);
if (!(*tif->tif_preencode)(tif, sample))
return ((tmsize_t) -1);
tif->tif_postdecode( tif, (uint8*) data, cc );
if (!(*tif->tif_encodestrip)(tif, (uint8*) data, cc, sample))
return ((tmsize_t) -1);
if (!(*tif->tif_postencode)(tif))
return ((tmsize_t) -1);
if (!isFillOrder(tif, td->td_fillorder) &&
(tif->tif_flags & TIFF_NOBITREV) == 0)
TIFFReverseBits(tif->tif_rawdata, tif->tif_rawcc);
if (tif->tif_rawcc > 0 &&
!TIFFAppendToStrip(tif, strip, tif->tif_rawdata, tif->tif_rawcc))
return ((tmsize_t) -1);
tif->tif_rawcc = 0;
tif->tif_rawcp = tif->tif_rawdata;
return (cc);
} | ['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 size_t basename_len;\n char *sep;\n char export_ext[16];\n char exportname[PATH_MAX];\n if (autoindex && (*tiffout != NULL))\n {\n TIFFClose (*tiffout);\n *tiffout = NULL;\n }\n memcpy (export_ext, ".tiff", 6);\n memset (exportname, \'\\0\', sizeof(exportname));\n #define FILENUM_MAX_LENGTH (1+6+1+4+1)\n strncpy (exportname, outname, sizeof(exportname) - FILENUM_MAX_LENGTH);\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 memcpy (export_ext, ".tiff", 5);\n export_ext[5] = \'\\0\';\n basename_len = strlen(exportname);\n if (findex > MAX_EXPORT_PAGES)\n {\n TIFFError("update_output_file", "Maximum of %d pages per file exceeded", MAX_EXPORT_PAGES);\n return 1;\n }\n snprintf(exportname + basename_len, sizeof(exportname) - basename_len, "-%03d%.5s", findex, export_ext);\n }\n exportname[sizeof(exportname) - 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 }', 'tmsize_t\nTIFFWriteEncodedStrip(TIFF* tif, uint32 strip, void* data, tmsize_t cc)\n{\n\tstatic const char module[] = "TIFFWriteEncodedStrip";\n\tTIFFDirectory *td = &tif->tif_dir;\n\tuint16 sample;\n\tif (!WRITECHECKSTRIPS(tif, module))\n\t\treturn ((tmsize_t) -1);\n\tif (strip >= td->td_nstrips) {\n\t\tif (td->td_planarconfig == PLANARCONFIG_SEPARATE) {\n\t\t\tTIFFErrorExt(tif->tif_clientdata, module,\n\t\t\t "Can not grow image by strips when using separate planes");\n\t\t\treturn ((tmsize_t) -1);\n\t\t}\n\t\tif (!TIFFGrowStrips(tif, 1, module))\n\t\t\treturn ((tmsize_t) -1);\n\t\ttd->td_stripsperimage =\n\t\t TIFFhowmany_32(td->td_imagelength, td->td_rowsperstrip);\n\t}\n\tif (!BUFFERCHECK(tif))\n\t\treturn ((tmsize_t) -1);\n tif->tif_flags |= TIFF_BUF4WRITE;\n\ttif->tif_curstrip = strip;\n\tif( !_TIFFReserveLargeEnoughWriteBuffer(tif, strip) ) {\n return ((tmsize_t)(-1));\n }\n tif->tif_rawcc = 0;\n tif->tif_rawcp = tif->tif_rawdata;\n if (td->td_stripsperimage == 0) {\n TIFFErrorExt(tif->tif_clientdata, module, "Zero strips per image");\n return ((tmsize_t) -1);\n }\n\ttif->tif_row = (strip % td->td_stripsperimage) * td->td_rowsperstrip;\n\tif ((tif->tif_flags & TIFF_CODERSETUP) == 0) {\n\t\tif (!(*tif->tif_setupencode)(tif))\n\t\t\treturn ((tmsize_t) -1);\n\t\ttif->tif_flags |= TIFF_CODERSETUP;\n\t}\n\ttif->tif_flags &= ~TIFF_POSTENCODE;\n if( td->td_compression == COMPRESSION_NONE )\n {\n tif->tif_postdecode( tif, (uint8*) data, cc );\n if (!isFillOrder(tif, td->td_fillorder) &&\n (tif->tif_flags & TIFF_NOBITREV) == 0)\n TIFFReverseBits((uint8*) data, cc);\n if (cc > 0 &&\n !TIFFAppendToStrip(tif, strip, (uint8*) data, cc))\n return ((tmsize_t) -1);\n return (cc);\n }\n\tsample = (uint16)(strip / td->td_stripsperimage);\n\tif (!(*tif->tif_preencode)(tif, sample))\n\t\treturn ((tmsize_t) -1);\n\ttif->tif_postdecode( tif, (uint8*) data, cc );\n\tif (!(*tif->tif_encodestrip)(tif, (uint8*) data, cc, sample))\n\t\treturn ((tmsize_t) -1);\n\tif (!(*tif->tif_postencode)(tif))\n\t\treturn ((tmsize_t) -1);\n\tif (!isFillOrder(tif, td->td_fillorder) &&\n\t (tif->tif_flags & TIFF_NOBITREV) == 0)\n\t\tTIFFReverseBits(tif->tif_rawdata, tif->tif_rawcc);\n\tif (tif->tif_rawcc > 0 &&\n\t !TIFFAppendToStrip(tif, strip, tif->tif_rawdata, tif->tif_rawcc))\n\t\treturn ((tmsize_t) -1);\n\ttif->tif_rawcc = 0;\n\ttif->tif_rawcp = tif->tif_rawdata;\n\treturn (cc);\n}'] |
26,960 | 0 | https://github.com/libav/libav/blob/bb4afa13dd3264832bc379bbfefe1db8cf4f0e40/libavcodec/flacdec.c/#L682 | static int flac_decode_frame(AVCodecContext *avctx,
void *data, int *data_size,
AVPacket *avpkt)
{
const uint8_t *buf = avpkt->data;
int buf_size = avpkt->size;
FLACContext *s = avctx->priv_data;
int i, j = 0, input_buf_size = 0, bytes_read = 0;
int16_t *samples_16 = data;
int32_t *samples_32 = data;
int alloc_data_size= *data_size;
int output_size;
*data_size=0;
if (s->max_framesize == 0) {
s->max_framesize =
ff_flac_get_max_frame_size(s->max_blocksize ? s->max_blocksize : FLAC_MAX_BLOCKSIZE,
FLAC_MAX_CHANNELS, 32);
s->bitstream= av_fast_realloc(s->bitstream, &s->allocated_bitstream_size, s->max_framesize);
}
if (1 && s->max_framesize) {
if (s->bitstream_size < 4 || AV_RL32(s->bitstream) != MKTAG('f','L','a','C'))
buf_size= FFMIN(buf_size, s->max_framesize - FFMIN(s->bitstream_size, s->max_framesize));
input_buf_size= buf_size;
if (s->bitstream_size + buf_size < buf_size || s->bitstream_index + s->bitstream_size + buf_size < s->bitstream_index)
return -1;
if (s->allocated_bitstream_size < s->bitstream_size + buf_size)
s->bitstream= av_fast_realloc(s->bitstream, &s->allocated_bitstream_size, s->bitstream_size + buf_size);
if (s->bitstream_index + s->bitstream_size + buf_size > s->allocated_bitstream_size) {
memmove(s->bitstream, &s->bitstream[s->bitstream_index],
s->bitstream_size);
s->bitstream_index=0;
}
memcpy(&s->bitstream[s->bitstream_index + s->bitstream_size],
buf, buf_size);
buf= &s->bitstream[s->bitstream_index];
buf_size += s->bitstream_size;
s->bitstream_size= buf_size;
if (buf_size < s->max_framesize && input_buf_size) {
return input_buf_size;
}
}
if (buf_size < 11)
goto end;
if (AV_RB32(buf) == MKBETAG('f','L','a','C')) {
if (!s->got_streaminfo && parse_streaminfo(s, buf, buf_size)) {
av_log(s->avctx, AV_LOG_ERROR, "invalid header\n");
return -1;
}
bytes_read = get_metadata_size(buf, buf_size);
goto end;
}
if ((AV_RB16(buf) & 0xFFFE) != 0xFFF8) {
const uint8_t *buf_end = buf + buf_size;
av_log(s->avctx, AV_LOG_ERROR, "FRAME HEADER not here\n");
while (buf+2 < buf_end && (AV_RB16(buf) & 0xFFFE) != 0xFFF8)
buf++;
bytes_read = buf_size - (buf_end - buf);
goto end;
}
init_get_bits(&s->gb, buf, buf_size*8);
if (decode_frame(s) < 0) {
av_log(s->avctx, AV_LOG_ERROR, "decode_frame() failed\n");
s->bitstream_size=0;
s->bitstream_index=0;
return -1;
}
bytes_read = (get_bits_count(&s->gb)+7)/8;
output_size = s->blocksize * s->channels * (s->is32 ? 4 : 2);
if (output_size > alloc_data_size) {
av_log(s->avctx, AV_LOG_ERROR, "output data size is larger than "
"allocated data size\n");
goto end;
}
*data_size = output_size;
#define DECORRELATE(left, right)\
assert(s->channels == 2);\
for (i = 0; i < s->blocksize; i++) {\
int a= s->decoded[0][i];\
int b= s->decoded[1][i];\
if (s->is32) {\
*samples_32++ = (left) << s->sample_shift;\
*samples_32++ = (right) << s->sample_shift;\
} else {\
*samples_16++ = (left) << s->sample_shift;\
*samples_16++ = (right) << s->sample_shift;\
}\
}\
break;
switch (s->ch_mode) {
case FLAC_CHMODE_INDEPENDENT:
for (j = 0; j < s->blocksize; j++) {
for (i = 0; i < s->channels; i++) {
if (s->is32)
*samples_32++ = s->decoded[i][j] << s->sample_shift;
else
*samples_16++ = s->decoded[i][j] << s->sample_shift;
}
}
break;
case FLAC_CHMODE_LEFT_SIDE:
DECORRELATE(a,a-b)
case FLAC_CHMODE_RIGHT_SIDE:
DECORRELATE(a+b,b)
case FLAC_CHMODE_MID_SIDE:
DECORRELATE( (a-=b>>1) + b, a)
}
end:
if (bytes_read > buf_size) {
av_log(s->avctx, AV_LOG_ERROR, "overread: %d\n", bytes_read - buf_size);
s->bitstream_size=0;
s->bitstream_index=0;
return -1;
}
if (s->bitstream_size) {
s->bitstream_index += bytes_read;
s->bitstream_size -= bytes_read;
return input_buf_size;
} else
return bytes_read;
} | ['static int flac_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 FLACContext *s = avctx->priv_data;\n int i, j = 0, input_buf_size = 0, bytes_read = 0;\n int16_t *samples_16 = data;\n int32_t *samples_32 = data;\n int alloc_data_size= *data_size;\n int output_size;\n *data_size=0;\n if (s->max_framesize == 0) {\n s->max_framesize =\n ff_flac_get_max_frame_size(s->max_blocksize ? s->max_blocksize : FLAC_MAX_BLOCKSIZE,\n FLAC_MAX_CHANNELS, 32);\n s->bitstream= av_fast_realloc(s->bitstream, &s->allocated_bitstream_size, s->max_framesize);\n }\n if (1 && s->max_framesize) {\n if (s->bitstream_size < 4 || AV_RL32(s->bitstream) != MKTAG(\'f\',\'L\',\'a\',\'C\'))\n buf_size= FFMIN(buf_size, s->max_framesize - FFMIN(s->bitstream_size, s->max_framesize));\n input_buf_size= buf_size;\n if (s->bitstream_size + buf_size < buf_size || s->bitstream_index + s->bitstream_size + buf_size < s->bitstream_index)\n return -1;\n if (s->allocated_bitstream_size < s->bitstream_size + buf_size)\n s->bitstream= av_fast_realloc(s->bitstream, &s->allocated_bitstream_size, s->bitstream_size + buf_size);\n if (s->bitstream_index + s->bitstream_size + buf_size > s->allocated_bitstream_size) {\n memmove(s->bitstream, &s->bitstream[s->bitstream_index],\n s->bitstream_size);\n s->bitstream_index=0;\n }\n memcpy(&s->bitstream[s->bitstream_index + s->bitstream_size],\n buf, buf_size);\n buf= &s->bitstream[s->bitstream_index];\n buf_size += s->bitstream_size;\n s->bitstream_size= buf_size;\n if (buf_size < s->max_framesize && input_buf_size) {\n return input_buf_size;\n }\n }\n if (buf_size < 11)\n goto end;\n if (AV_RB32(buf) == MKBETAG(\'f\',\'L\',\'a\',\'C\')) {\n if (!s->got_streaminfo && parse_streaminfo(s, buf, buf_size)) {\n av_log(s->avctx, AV_LOG_ERROR, "invalid header\\n");\n return -1;\n }\n bytes_read = get_metadata_size(buf, buf_size);\n goto end;\n }\n if ((AV_RB16(buf) & 0xFFFE) != 0xFFF8) {\n const uint8_t *buf_end = buf + buf_size;\n av_log(s->avctx, AV_LOG_ERROR, "FRAME HEADER not here\\n");\n while (buf+2 < buf_end && (AV_RB16(buf) & 0xFFFE) != 0xFFF8)\n buf++;\n bytes_read = buf_size - (buf_end - buf);\n goto end;\n }\n init_get_bits(&s->gb, buf, buf_size*8);\n if (decode_frame(s) < 0) {\n av_log(s->avctx, AV_LOG_ERROR, "decode_frame() failed\\n");\n s->bitstream_size=0;\n s->bitstream_index=0;\n return -1;\n }\n bytes_read = (get_bits_count(&s->gb)+7)/8;\n output_size = s->blocksize * s->channels * (s->is32 ? 4 : 2);\n if (output_size > alloc_data_size) {\n av_log(s->avctx, AV_LOG_ERROR, "output data size is larger than "\n "allocated data size\\n");\n goto end;\n }\n *data_size = output_size;\n#define DECORRELATE(left, right)\\\n assert(s->channels == 2);\\\n for (i = 0; i < s->blocksize; i++) {\\\n int a= s->decoded[0][i];\\\n int b= s->decoded[1][i];\\\n if (s->is32) {\\\n *samples_32++ = (left) << s->sample_shift;\\\n *samples_32++ = (right) << s->sample_shift;\\\n } else {\\\n *samples_16++ = (left) << s->sample_shift;\\\n *samples_16++ = (right) << s->sample_shift;\\\n }\\\n }\\\n break;\n switch (s->ch_mode) {\n case FLAC_CHMODE_INDEPENDENT:\n for (j = 0; j < s->blocksize; j++) {\n for (i = 0; i < s->channels; i++) {\n if (s->is32)\n *samples_32++ = s->decoded[i][j] << s->sample_shift;\n else\n *samples_16++ = s->decoded[i][j] << s->sample_shift;\n }\n }\n break;\n case FLAC_CHMODE_LEFT_SIDE:\n DECORRELATE(a,a-b)\n case FLAC_CHMODE_RIGHT_SIDE:\n DECORRELATE(a+b,b)\n case FLAC_CHMODE_MID_SIDE:\n DECORRELATE( (a-=b>>1) + b, a)\n }\nend:\n if (bytes_read > buf_size) {\n av_log(s->avctx, AV_LOG_ERROR, "overread: %d\\n", bytes_read - buf_size);\n s->bitstream_size=0;\n s->bitstream_index=0;\n return -1;\n }\n if (s->bitstream_size) {\n s->bitstream_index += bytes_read;\n s->bitstream_size -= bytes_read;\n return input_buf_size;\n } else\n return bytes_read;\n}', 'int ff_flac_get_max_frame_size(int blocksize, int ch, int bps)\n{\n int count;\n count = 16;\n count += ch * ((7+bps+7)/8);\n if (ch == 2) {\n count += (( 2*bps+1) * blocksize + 7) / 8;\n } else {\n count += ( ch*bps * blocksize + 7) / 8;\n }\n count += 2;\n return count;\n}', 'void *av_fast_realloc(void *ptr, unsigned int *size, FF_INTERNALC_MEM_TYPE min_size)\n{\n if(min_size < *size)\n return ptr;\n min_size= FFMAX(17*min_size/16 + 32, min_size);\n ptr= av_realloc(ptr, min_size);\n if(!ptr)\n min_size= 0;\n *size= min_size;\n return ptr;\n}', 'void *av_realloc(void *ptr, FF_INTERNAL_MEM_TYPE size)\n{\n#if CONFIG_MEMALIGN_HACK\n int diff;\n#endif\n if(size > (INT_MAX-16) )\n return NULL;\n#if CONFIG_MEMALIGN_HACK\n if(!ptr) return av_malloc(size);\n diff= ((char*)ptr)[-1];\n return (char*)realloc((char*)ptr - diff, size + diff) + diff;\n#else\n return realloc(ptr, size);\n#endif\n}'] |
26,961 | 0 | https://github.com/libav/libav/blob/4860abb116674c7be31e825db05cdcfd30f3aff2/libavformat/utils.c/#L2440 | int av_interleave_packet_per_dts(AVFormatContext *s, AVPacket *out, AVPacket *pkt, int flush){
AVPacketList *pktl, **next_point, *this_pktl;
int stream_count=0;
int streams[MAX_STREAMS];
if(pkt){
AVStream *st= s->streams[ pkt->stream_index];
this_pktl = av_mallocz(sizeof(AVPacketList));
this_pktl->pkt= *pkt;
if(pkt->destruct == av_destruct_packet)
pkt->destruct= NULL;
else
av_dup_packet(&this_pktl->pkt);
next_point = &s->packet_buffer;
while(*next_point){
AVStream *st2= s->streams[ (*next_point)->pkt.stream_index];
int64_t left= st2->time_base.num * (int64_t)st ->time_base.den;
int64_t right= st ->time_base.num * (int64_t)st2->time_base.den;
if((*next_point)->pkt.dts * left > pkt->dts * right)
break;
next_point= &(*next_point)->next;
}
this_pktl->next= *next_point;
*next_point= this_pktl;
}
memset(streams, 0, sizeof(streams));
pktl= s->packet_buffer;
while(pktl){
if(streams[ pktl->pkt.stream_index ] == 0)
stream_count++;
streams[ pktl->pkt.stream_index ]++;
pktl= pktl->next;
}
if(s->nb_streams == stream_count || (flush && stream_count)){
pktl= s->packet_buffer;
*out= pktl->pkt;
s->packet_buffer= pktl->next;
av_freep(&pktl);
return 1;
}else{
av_init_packet(out);
return 0;
}
} | ['int av_interleave_packet_per_dts(AVFormatContext *s, AVPacket *out, AVPacket *pkt, int flush){\n AVPacketList *pktl, **next_point, *this_pktl;\n int stream_count=0;\n int streams[MAX_STREAMS];\n if(pkt){\n AVStream *st= s->streams[ pkt->stream_index];\n this_pktl = av_mallocz(sizeof(AVPacketList));\n this_pktl->pkt= *pkt;\n if(pkt->destruct == av_destruct_packet)\n pkt->destruct= NULL;\n else\n av_dup_packet(&this_pktl->pkt);\n next_point = &s->packet_buffer;\n while(*next_point){\n AVStream *st2= s->streams[ (*next_point)->pkt.stream_index];\n int64_t left= st2->time_base.num * (int64_t)st ->time_base.den;\n int64_t right= st ->time_base.num * (int64_t)st2->time_base.den;\n if((*next_point)->pkt.dts * left > pkt->dts * right)\n break;\n next_point= &(*next_point)->next;\n }\n this_pktl->next= *next_point;\n *next_point= this_pktl;\n }\n memset(streams, 0, sizeof(streams));\n pktl= s->packet_buffer;\n while(pktl){\n if(streams[ pktl->pkt.stream_index ] == 0)\n stream_count++;\n streams[ pktl->pkt.stream_index ]++;\n pktl= pktl->next;\n }\n if(s->nb_streams == stream_count || (flush && stream_count)){\n pktl= s->packet_buffer;\n *out= pktl->pkt;\n s->packet_buffer= pktl->next;\n av_freep(&pktl);\n return 1;\n }else{\n av_init_packet(out);\n return 0;\n }\n}', 'void *av_mallocz(unsigned int size)\n{\n void *ptr = av_malloc(size);\n if (ptr)\n memset(ptr, 0, size);\n return ptr;\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}'] |
26,962 | 0 | https://github.com/libav/libav/blob/2c8077621b6466da205ba26fd20a9c906bb71893/libavcodec/sonic.c/#L809 | static av_cold int sonic_decode_init(AVCodecContext *avctx)
{
SonicContext *s = avctx->priv_data;
GetBitContext gb;
int i, version;
s->channels = avctx->channels;
s->samplerate = avctx->sample_rate;
if (!avctx->extradata)
{
av_log(avctx, AV_LOG_ERROR, "No mandatory headers present\n");
return -1;
}
init_get_bits(&gb, avctx->extradata, avctx->extradata_size);
version = get_bits(&gb, 2);
if (version > 1)
{
av_log(avctx, AV_LOG_ERROR, "Unsupported Sonic version, please report\n");
return -1;
}
if (version == 1)
{
s->channels = get_bits(&gb, 2);
s->samplerate = samplerate_table[get_bits(&gb, 4)];
av_log(avctx, AV_LOG_INFO, "Sonicv2 chans: %d samprate: %d\n",
s->channels, s->samplerate);
}
if (s->channels > MAX_CHANNELS)
{
av_log(avctx, AV_LOG_ERROR, "Only mono and stereo streams are supported by now\n");
return -1;
}
s->lossless = get_bits1(&gb);
if (!s->lossless)
skip_bits(&gb, 3);
s->decorrelation = get_bits(&gb, 2);
s->downsampling = get_bits(&gb, 2);
s->num_taps = (get_bits(&gb, 5)+1)<<5;
if (get_bits1(&gb))
av_log(avctx, AV_LOG_INFO, "Custom quant table\n");
s->block_align = (int)(2048.0*(s->samplerate/44100))/s->downsampling;
s->frame_size = s->channels*s->block_align*s->downsampling;
av_log(avctx, AV_LOG_INFO, "Sonic: ver: %d ls: %d dr: %d taps: %d block: %d frame: %d downsamp: %d\n",
version, s->lossless, s->decorrelation, s->num_taps, s->block_align, s->frame_size, s->downsampling);
s->tap_quant = av_mallocz(4* s->num_taps);
for (i = 0; i < s->num_taps; i++)
s->tap_quant[i] = (int)(sqrt(i+1));
s->predictor_k = av_mallocz(4* s->num_taps);
for (i = 0; i < s->channels; i++)
{
s->predictor_state[i] = av_mallocz(4* s->num_taps);
if (!s->predictor_state[i])
return -1;
}
for (i = 0; i < s->channels; i++)
{
s->coded_samples[i] = av_mallocz(4* s->block_align);
if (!s->coded_samples[i])
return -1;
}
s->int_samples = av_mallocz(4* s->frame_size);
avctx->sample_fmt = SAMPLE_FMT_S16;
return 0;
} | ['static av_cold int sonic_decode_init(AVCodecContext *avctx)\n{\n SonicContext *s = avctx->priv_data;\n GetBitContext gb;\n int i, version;\n s->channels = avctx->channels;\n s->samplerate = avctx->sample_rate;\n if (!avctx->extradata)\n {\n av_log(avctx, AV_LOG_ERROR, "No mandatory headers present\\n");\n return -1;\n }\n init_get_bits(&gb, avctx->extradata, avctx->extradata_size);\n version = get_bits(&gb, 2);\n if (version > 1)\n {\n av_log(avctx, AV_LOG_ERROR, "Unsupported Sonic version, please report\\n");\n return -1;\n }\n if (version == 1)\n {\n s->channels = get_bits(&gb, 2);\n s->samplerate = samplerate_table[get_bits(&gb, 4)];\n av_log(avctx, AV_LOG_INFO, "Sonicv2 chans: %d samprate: %d\\n",\n s->channels, s->samplerate);\n }\n if (s->channels > MAX_CHANNELS)\n {\n av_log(avctx, AV_LOG_ERROR, "Only mono and stereo streams are supported by now\\n");\n return -1;\n }\n s->lossless = get_bits1(&gb);\n if (!s->lossless)\n skip_bits(&gb, 3);\n s->decorrelation = get_bits(&gb, 2);\n s->downsampling = get_bits(&gb, 2);\n s->num_taps = (get_bits(&gb, 5)+1)<<5;\n if (get_bits1(&gb))\n av_log(avctx, AV_LOG_INFO, "Custom quant table\\n");\n s->block_align = (int)(2048.0*(s->samplerate/44100))/s->downsampling;\n s->frame_size = s->channels*s->block_align*s->downsampling;\n av_log(avctx, AV_LOG_INFO, "Sonic: ver: %d ls: %d dr: %d taps: %d block: %d frame: %d downsamp: %d\\n",\n version, s->lossless, s->decorrelation, s->num_taps, s->block_align, s->frame_size, s->downsampling);\n s->tap_quant = av_mallocz(4* s->num_taps);\n for (i = 0; i < s->num_taps; i++)\n s->tap_quant[i] = (int)(sqrt(i+1));\n s->predictor_k = av_mallocz(4* s->num_taps);\n for (i = 0; i < s->channels; i++)\n {\n s->predictor_state[i] = av_mallocz(4* s->num_taps);\n if (!s->predictor_state[i])\n return -1;\n }\n for (i = 0; i < s->channels; i++)\n {\n s->coded_samples[i] = av_mallocz(4* s->block_align);\n if (!s->coded_samples[i])\n return -1;\n }\n s->int_samples = av_mallocz(4* s->frame_size);\n avctx->sample_fmt = SAMPLE_FMT_S16;\n return 0;\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 unsigned int get_bits(GetBitContext *s, int n){\n register int tmp;\n OPEN_READER(re, s)\n UPDATE_CACHE(re, s)\n tmp= SHOW_UBITS(re, s, n);\n LAST_SKIP_BITS(re, s, n)\n CLOSE_READER(re, s)\n return tmp;\n}', 'static av_always_inline av_const uint32_t bswap_32(uint32_t x)\n{\n x= ((x<<8)&0xFF00FF00) | ((x>>8)&0x00FF00FF);\n x= (x>>16) | (x<<16);\n return x;\n}', 'static inline unsigned int get_bits1(GetBitContext *s){\n#ifdef ALT_BITSTREAM_READER\n int index= s->index;\n uint8_t result= s->buffer[ index>>3 ];\n#ifdef ALT_BITSTREAM_READER_LE\n result>>= (index&0x07);\n result&= 1;\n#else\n result<<= (index&0x07);\n result>>= 8 - 1;\n#endif\n index++;\n s->index= index;\n return result;\n#else\n return get_bits(s, 1);\n#endif\n}', 'void *av_mallocz(unsigned int size)\n{\n void *ptr = av_malloc(size);\n if (ptr)\n memset(ptr, 0, size);\n return ptr;\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}'] |
26,963 | 0 | https://github.com/openssl/openssl/blob/e3713c365c2657236439fea00822a43aa396d112/crypto/bn/bn_lib.c/#L260 | 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;
} | ['int RSA_X931_generate_key_ex(RSA *rsa, int bits, const BIGNUM *e,\n BN_GENCB *cb)\n{\n int ok = 0;\n BIGNUM *Xp = NULL, *Xq = NULL;\n BN_CTX *ctx = NULL;\n ctx = BN_CTX_new();\n if (ctx == NULL)\n goto error;\n BN_CTX_start(ctx);\n Xp = BN_CTX_get(ctx);\n Xq = BN_CTX_get(ctx);\n if (Xq == NULL)\n goto error;\n if (!BN_X931_generate_Xpq(Xp, Xq, bits, ctx))\n goto error;\n rsa->p = BN_new();\n rsa->q = BN_new();\n if (rsa->p == NULL || rsa->q == NULL)\n goto error;\n if (!BN_X931_generate_prime_ex(rsa->p, NULL, NULL, NULL, NULL, Xp,\n e, ctx, cb))\n goto error;\n if (!BN_X931_generate_prime_ex(rsa->q, NULL, NULL, NULL, NULL, Xq,\n e, ctx, cb))\n goto error;\n if (!RSA_X931_derive_ex(rsa, NULL, NULL, NULL, NULL,\n NULL, NULL, NULL, NULL, NULL, NULL, e, cb))\n goto error;\n ok = 1;\n error:\n if (ctx)\n BN_CTX_end(ctx);\n BN_CTX_free(ctx);\n if (ok)\n return 1;\n return 0;\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}', '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_X931_generate_Xpq(BIGNUM *Xp, BIGNUM *Xq, int nbits, BN_CTX *ctx)\n{\n BIGNUM *t;\n int i;\n if ((nbits < 1024) || (nbits & 0xff))\n return 0;\n nbits >>= 1;\n if (!BN_priv_rand(Xp, nbits, BN_RAND_TOP_TWO, BN_RAND_BOTTOM_ANY))\n goto err;\n BN_CTX_start(ctx);\n t = BN_CTX_get(ctx);\n if (t == NULL)\n goto err;\n for (i = 0; i < 1000; i++) {\n if (!BN_priv_rand(Xq, nbits, BN_RAND_TOP_TWO, BN_RAND_BOTTOM_ANY))\n goto err;\n BN_sub(t, Xp, Xq);\n if (BN_num_bits(t) > (nbits - 100))\n break;\n }\n BN_CTX_end(ctx);\n if (i < 1000)\n return 1;\n return 0;\n err:\n BN_CTX_end(ctx);\n return 0;\n}', 'int BN_priv_rand(BIGNUM *rnd, int bits, int top, int bottom)\n{\n return bnrand(PRIVATE, 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}', '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}', 'int BN_X931_generate_prime_ex(BIGNUM *p, BIGNUM *p1, BIGNUM *p2,\n BIGNUM *Xp1, BIGNUM *Xp2,\n const BIGNUM *Xp,\n const BIGNUM *e, BN_CTX *ctx, BN_GENCB *cb)\n{\n int ret = 0;\n BN_CTX_start(ctx);\n if (Xp1 == NULL)\n Xp1 = BN_CTX_get(ctx);\n if (Xp2 == NULL)\n Xp2 = BN_CTX_get(ctx);\n if (Xp1 == NULL || Xp2 == NULL)\n goto error;\n if (!BN_priv_rand(Xp1, 101, BN_RAND_TOP_ONE, BN_RAND_BOTTOM_ANY))\n goto error;\n if (!BN_priv_rand(Xp2, 101, BN_RAND_TOP_ONE, BN_RAND_BOTTOM_ANY))\n goto error;\n if (!BN_X931_derive_prime_ex(p, p1, p2, Xp, Xp1, Xp2, e, ctx, cb))\n goto error;\n ret = 1;\n error:\n BN_CTX_end(ctx);\n return ret;\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}'] |
26,964 | 0 | https://github.com/apache/httpd/blob/63c984a3de773752dce34201e476d0b4a680adba/support/ab.c/#L1100 | static void output_html_results(void)
{
double timetaken = (double) (lasttime - start) / APR_USEC_PER_SEC;
printf("\n\n<table %s>\n", tablestring);
printf("<tr %s><th colspan=2 %s>Server Software:</th>"
"<td colspan=2 %s>%s</td></tr>\n",
trstring, tdstring, tdstring, servername);
printf("<tr %s><th colspan=2 %s>Server Hostname:</th>"
"<td colspan=2 %s>%s</td></tr>\n",
trstring, tdstring, tdstring, hostname);
printf("<tr %s><th colspan=2 %s>Server Port:</th>"
"<td colspan=2 %s>%hu</td></tr>\n",
trstring, tdstring, tdstring, port);
printf("<tr %s><th colspan=2 %s>Document Path:</th>"
"<td colspan=2 %s>%s</td></tr>\n",
trstring, tdstring, tdstring, path);
printf("<tr %s><th colspan=2 %s>Document Length:</th>"
"<td colspan=2 %s>%" APR_SIZE_T_FMT " bytes</td></tr>\n",
trstring, tdstring, tdstring, doclen);
printf("<tr %s><th colspan=2 %s>Concurrency Level:</th>"
"<td colspan=2 %s>%d</td></tr>\n",
trstring, tdstring, tdstring, concurrency);
printf("<tr %s><th colspan=2 %s>Time taken for tests:</th>"
"<td colspan=2 %s>%.3f seconds</td></tr>\n",
trstring, tdstring, tdstring, timetaken);
printf("<tr %s><th colspan=2 %s>Complete requests:</th>"
"<td colspan=2 %s>%d</td></tr>\n",
trstring, tdstring, tdstring, done);
printf("<tr %s><th colspan=2 %s>Failed requests:</th>"
"<td colspan=2 %s>%d</td></tr>\n",
trstring, tdstring, tdstring, bad);
if (bad)
printf("<tr %s><td colspan=4 %s > (Connect: %d, Length: %d, Exceptions: %d)</td></tr>\n",
trstring, tdstring, err_conn, err_length, err_except);
if (err_response)
printf("<tr %s><th colspan=2 %s>Non-2xx responses:</th>"
"<td colspan=2 %s>%d</td></tr>\n",
trstring, tdstring, tdstring, err_response);
if (keepalive)
printf("<tr %s><th colspan=2 %s>Keep-Alive requests:</th>"
"<td colspan=2 %s>%d</td></tr>\n",
trstring, tdstring, tdstring, doneka);
printf("<tr %s><th colspan=2 %s>Total transferred:</th>"
"<td colspan=2 %s>%" APR_INT64_T_FMT " bytes</td></tr>\n",
trstring, tdstring, tdstring, totalread);
if (posting > 0)
printf("<tr %s><th colspan=2 %s>Total POSTed:</th>"
"<td colspan=2 %s>%" APR_INT64_T_FMT "</td></tr>\n",
trstring, tdstring, tdstring, totalposted);
printf("<tr %s><th colspan=2 %s>HTML transferred:</th>"
"<td colspan=2 %s>%" APR_INT64_T_FMT " bytes</td></tr>\n",
trstring, tdstring, tdstring, totalbread);
if (timetaken) {
printf("<tr %s><th colspan=2 %s>Requests per second:</th>"
"<td colspan=2 %s>%.2f</td></tr>\n",
trstring, tdstring, tdstring, (double) done * 1000 / timetaken);
printf("<tr %s><th colspan=2 %s>Transfer rate:</th>"
"<td colspan=2 %s>%.2f kb/s received</td></tr>\n",
trstring, tdstring, tdstring, (double) totalread / timetaken);
if (posting > 0) {
printf("<tr %s><td colspan=2 %s> </td>"
"<td colspan=2 %s>%.2f kb/s sent</td></tr>\n",
trstring, tdstring, tdstring,
(double) totalposted / timetaken);
printf("<tr %s><td colspan=2 %s> </td>"
"<td colspan=2 %s>%.2f kb/s total</td></tr>\n",
trstring, tdstring, tdstring,
(double) (totalread + totalposted) / timetaken);
}
}
{
int i;
apr_interval_time_t totalcon = 0, total = 0;
apr_interval_time_t mincon = AB_MAX, mintot = AB_MAX;
apr_interval_time_t maxcon = 0, maxtot = 0;
for (i = 0; i < done; i++) {
struct data *s = &stats[i];
mincon = ap_min(mincon, s->ctime);
mintot = ap_min(mintot, s->time);
maxcon = ap_max(maxcon, s->ctime);
maxtot = ap_max(maxtot, s->time);
totalcon += s->ctime;
total += s->time;
}
mincon = ap_round_ms(mincon);
mintot = ap_round_ms(mintot);
maxcon = ap_round_ms(maxcon);
maxtot = ap_round_ms(maxtot);
totalcon = ap_round_ms(totalcon);
total = ap_round_ms(total);
if (done > 0) {
printf("<tr %s><th %s colspan=4>Connnection Times (ms)</th></tr>\n",
trstring, tdstring);
printf("<tr %s><th %s> </th> <th %s>min</th> <th %s>avg</th> <th %s>max</th></tr>\n",
trstring, tdstring, tdstring, tdstring, tdstring);
printf("<tr %s><th %s>Connect:</th>"
"<td %s>%5" APR_TIME_T_FMT "</td>"
"<td %s>%5" APR_TIME_T_FMT "</td>"
"<td %s>%5" APR_TIME_T_FMT "</td></tr>\n",
trstring, tdstring, tdstring, mincon, tdstring, totalcon / done, tdstring, maxcon);
printf("<tr %s><th %s>Processing:</th>"
"<td %s>%5" APR_TIME_T_FMT "</td>"
"<td %s>%5" APR_TIME_T_FMT "</td>"
"<td %s>%5" APR_TIME_T_FMT "</td></tr>\n",
trstring, tdstring, tdstring, mintot - mincon, tdstring,
(total / done) - (totalcon / done), tdstring, maxtot - maxcon);
printf("<tr %s><th %s>Total:</th>"
"<td %s>%5" APR_TIME_T_FMT "</td>"
"<td %s>%5" APR_TIME_T_FMT "</td>"
"<td %s>%5" APR_TIME_T_FMT "</td></tr>\n",
trstring, tdstring, tdstring, mintot, tdstring, total / done, tdstring, maxtot);
}
printf("</table>\n");
}
} | ['static void output_html_results(void)\n{\n double timetaken = (double) (lasttime - start) / APR_USEC_PER_SEC;\n printf("\\n\\n<table %s>\\n", tablestring);\n printf("<tr %s><th colspan=2 %s>Server Software:</th>"\n "<td colspan=2 %s>%s</td></tr>\\n",\n trstring, tdstring, tdstring, servername);\n printf("<tr %s><th colspan=2 %s>Server Hostname:</th>"\n "<td colspan=2 %s>%s</td></tr>\\n",\n trstring, tdstring, tdstring, hostname);\n printf("<tr %s><th colspan=2 %s>Server Port:</th>"\n "<td colspan=2 %s>%hu</td></tr>\\n",\n trstring, tdstring, tdstring, port);\n printf("<tr %s><th colspan=2 %s>Document Path:</th>"\n "<td colspan=2 %s>%s</td></tr>\\n",\n trstring, tdstring, tdstring, path);\n printf("<tr %s><th colspan=2 %s>Document Length:</th>"\n "<td colspan=2 %s>%" APR_SIZE_T_FMT " bytes</td></tr>\\n",\n trstring, tdstring, tdstring, doclen);\n printf("<tr %s><th colspan=2 %s>Concurrency Level:</th>"\n "<td colspan=2 %s>%d</td></tr>\\n",\n trstring, tdstring, tdstring, concurrency);\n printf("<tr %s><th colspan=2 %s>Time taken for tests:</th>"\n "<td colspan=2 %s>%.3f seconds</td></tr>\\n",\n trstring, tdstring, tdstring, timetaken);\n printf("<tr %s><th colspan=2 %s>Complete requests:</th>"\n "<td colspan=2 %s>%d</td></tr>\\n",\n trstring, tdstring, tdstring, done);\n printf("<tr %s><th colspan=2 %s>Failed requests:</th>"\n "<td colspan=2 %s>%d</td></tr>\\n",\n trstring, tdstring, tdstring, bad);\n if (bad)\n printf("<tr %s><td colspan=4 %s > (Connect: %d, Length: %d, Exceptions: %d)</td></tr>\\n",\n trstring, tdstring, err_conn, err_length, err_except);\n if (err_response)\n printf("<tr %s><th colspan=2 %s>Non-2xx responses:</th>"\n "<td colspan=2 %s>%d</td></tr>\\n",\n trstring, tdstring, tdstring, err_response);\n if (keepalive)\n printf("<tr %s><th colspan=2 %s>Keep-Alive requests:</th>"\n "<td colspan=2 %s>%d</td></tr>\\n",\n trstring, tdstring, tdstring, doneka);\n printf("<tr %s><th colspan=2 %s>Total transferred:</th>"\n "<td colspan=2 %s>%" APR_INT64_T_FMT " bytes</td></tr>\\n",\n trstring, tdstring, tdstring, totalread);\n if (posting > 0)\n printf("<tr %s><th colspan=2 %s>Total POSTed:</th>"\n "<td colspan=2 %s>%" APR_INT64_T_FMT "</td></tr>\\n",\n trstring, tdstring, tdstring, totalposted);\n printf("<tr %s><th colspan=2 %s>HTML transferred:</th>"\n "<td colspan=2 %s>%" APR_INT64_T_FMT " bytes</td></tr>\\n",\n trstring, tdstring, tdstring, totalbread);\n if (timetaken) {\n printf("<tr %s><th colspan=2 %s>Requests per second:</th>"\n "<td colspan=2 %s>%.2f</td></tr>\\n",\n trstring, tdstring, tdstring, (double) done * 1000 / timetaken);\n printf("<tr %s><th colspan=2 %s>Transfer rate:</th>"\n "<td colspan=2 %s>%.2f kb/s received</td></tr>\\n",\n trstring, tdstring, tdstring, (double) totalread / timetaken);\n if (posting > 0) {\n printf("<tr %s><td colspan=2 %s> </td>"\n "<td colspan=2 %s>%.2f kb/s sent</td></tr>\\n",\n trstring, tdstring, tdstring,\n (double) totalposted / timetaken);\n printf("<tr %s><td colspan=2 %s> </td>"\n "<td colspan=2 %s>%.2f kb/s total</td></tr>\\n",\n trstring, tdstring, tdstring,\n (double) (totalread + totalposted) / timetaken);\n }\n }\n {\n int i;\n apr_interval_time_t totalcon = 0, total = 0;\n apr_interval_time_t mincon = AB_MAX, mintot = AB_MAX;\n apr_interval_time_t maxcon = 0, maxtot = 0;\n for (i = 0; i < done; i++) {\n struct data *s = &stats[i];\n mincon = ap_min(mincon, s->ctime);\n mintot = ap_min(mintot, s->time);\n maxcon = ap_max(maxcon, s->ctime);\n maxtot = ap_max(maxtot, s->time);\n totalcon += s->ctime;\n total += s->time;\n }\n mincon = ap_round_ms(mincon);\n mintot = ap_round_ms(mintot);\n maxcon = ap_round_ms(maxcon);\n maxtot = ap_round_ms(maxtot);\n totalcon = ap_round_ms(totalcon);\n total = ap_round_ms(total);\n if (done > 0) {\n printf("<tr %s><th %s colspan=4>Connnection Times (ms)</th></tr>\\n",\n trstring, tdstring);\n printf("<tr %s><th %s> </th> <th %s>min</th> <th %s>avg</th> <th %s>max</th></tr>\\n",\n trstring, tdstring, tdstring, tdstring, tdstring);\n printf("<tr %s><th %s>Connect:</th>"\n "<td %s>%5" APR_TIME_T_FMT "</td>"\n "<td %s>%5" APR_TIME_T_FMT "</td>"\n "<td %s>%5" APR_TIME_T_FMT "</td></tr>\\n",\n trstring, tdstring, tdstring, mincon, tdstring, totalcon / done, tdstring, maxcon);\n printf("<tr %s><th %s>Processing:</th>"\n "<td %s>%5" APR_TIME_T_FMT "</td>"\n "<td %s>%5" APR_TIME_T_FMT "</td>"\n "<td %s>%5" APR_TIME_T_FMT "</td></tr>\\n",\n trstring, tdstring, tdstring, mintot - mincon, tdstring,\n (total / done) - (totalcon / done), tdstring, maxtot - maxcon);\n printf("<tr %s><th %s>Total:</th>"\n "<td %s>%5" APR_TIME_T_FMT "</td>"\n "<td %s>%5" APR_TIME_T_FMT "</td>"\n "<td %s>%5" APR_TIME_T_FMT "</td></tr>\\n",\n trstring, tdstring, tdstring, mintot, tdstring, total / done, tdstring, maxtot);\n }\n printf("</table>\\n");\n }\n}'] |
26,965 | 0 | https://github.com/openssl/openssl/blob/9f519addc09b2005fa8c6cde36e3267de02577bb/crypto/blake2/blake2b.c/#L165 | static void blake2b_compress(BLAKE2B_CTX *S,
const uint8_t block[BLAKE2B_BLOCKBYTES])
{
uint64_t m[16];
uint64_t v[16];
int i;
for(i = 0; i < 16; ++i) {
m[i] = load64(block + i * sizeof(m[i]));
}
for(i = 0; i < 8; ++i) {
v[i] = S->h[i];
}
v[8] = blake2b_IV[0];
v[9] = blake2b_IV[1];
v[10] = blake2b_IV[2];
v[11] = blake2b_IV[3];
v[12] = S->t[0] ^ blake2b_IV[4];
v[13] = S->t[1] ^ blake2b_IV[5];
v[14] = S->f[0] ^ blake2b_IV[6];
v[15] = S->f[1] ^ blake2b_IV[7];
#define G(r,i,a,b,c,d) \
do { \
a = a + b + m[blake2b_sigma[r][2*i+0]]; \
d = rotr64(d ^ a, 32); \
c = c + d; \
b = rotr64(b ^ c, 24); \
a = a + b + m[blake2b_sigma[r][2*i+1]]; \
d = rotr64(d ^ a, 16); \
c = c + d; \
b = rotr64(b ^ c, 63); \
} while(0)
#define ROUND(r) \
do { \
G(r,0,v[ 0],v[ 4],v[ 8],v[12]); \
G(r,1,v[ 1],v[ 5],v[ 9],v[13]); \
G(r,2,v[ 2],v[ 6],v[10],v[14]); \
G(r,3,v[ 3],v[ 7],v[11],v[15]); \
G(r,4,v[ 0],v[ 5],v[10],v[15]); \
G(r,5,v[ 1],v[ 6],v[11],v[12]); \
G(r,6,v[ 2],v[ 7],v[ 8],v[13]); \
G(r,7,v[ 3],v[ 4],v[ 9],v[14]); \
} while(0)
ROUND(0);
ROUND(1);
ROUND(2);
ROUND(3);
ROUND(4);
ROUND(5);
ROUND(6);
ROUND(7);
ROUND(8);
ROUND(9);
ROUND(10);
ROUND(11);
for(i = 0; i < 8; ++i) {
S->h[i] = S->h[i] ^ v[i] ^ v[i + 8];
}
#undef G
#undef ROUND
} | ['static void blake2b_compress(BLAKE2B_CTX *S,\n const uint8_t block[BLAKE2B_BLOCKBYTES])\n{\n uint64_t m[16];\n uint64_t v[16];\n int i;\n for(i = 0; i < 16; ++i) {\n m[i] = load64(block + i * sizeof(m[i]));\n }\n for(i = 0; i < 8; ++i) {\n v[i] = S->h[i];\n }\n v[8] = blake2b_IV[0];\n v[9] = blake2b_IV[1];\n v[10] = blake2b_IV[2];\n v[11] = blake2b_IV[3];\n v[12] = S->t[0] ^ blake2b_IV[4];\n v[13] = S->t[1] ^ blake2b_IV[5];\n v[14] = S->f[0] ^ blake2b_IV[6];\n v[15] = S->f[1] ^ blake2b_IV[7];\n#define G(r,i,a,b,c,d) \\\n do { \\\n a = a + b + m[blake2b_sigma[r][2*i+0]]; \\\n d = rotr64(d ^ a, 32); \\\n c = c + d; \\\n b = rotr64(b ^ c, 24); \\\n a = a + b + m[blake2b_sigma[r][2*i+1]]; \\\n d = rotr64(d ^ a, 16); \\\n c = c + d; \\\n b = rotr64(b ^ c, 63); \\\n } while(0)\n#define ROUND(r) \\\n do { \\\n G(r,0,v[ 0],v[ 4],v[ 8],v[12]); \\\n G(r,1,v[ 1],v[ 5],v[ 9],v[13]); \\\n G(r,2,v[ 2],v[ 6],v[10],v[14]); \\\n G(r,3,v[ 3],v[ 7],v[11],v[15]); \\\n G(r,4,v[ 0],v[ 5],v[10],v[15]); \\\n G(r,5,v[ 1],v[ 6],v[11],v[12]); \\\n G(r,6,v[ 2],v[ 7],v[ 8],v[13]); \\\n G(r,7,v[ 3],v[ 4],v[ 9],v[14]); \\\n } while(0)\n ROUND(0);\n ROUND(1);\n ROUND(2);\n ROUND(3);\n ROUND(4);\n ROUND(5);\n ROUND(6);\n ROUND(7);\n ROUND(8);\n ROUND(9);\n ROUND(10);\n ROUND(11);\n for(i = 0; i < 8; ++i) {\n S->h[i] = S->h[i] ^ v[i] ^ v[i + 8];\n }\n#undef G\n#undef ROUND\n}'] |
26,966 | 0 | https://github.com/libav/libav/blob/7ff018c1cb43a5fe5ee2049d325cdd785852067a/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_element(AVCodecContext *avctx, AVFrame *frame, int ch_index,\n int channels)\n{\n ALACContext *alac = avctx->priv_data;\n int has_size, bps, is_compressed, decorr_shift, decorr_left_weight, ret;\n uint32_t output_samples;\n int i, ch;\n bitstream_skip(&alac->bc, 4);\n bitstream_skip(&alac->bc, 12);\n has_size = bitstream_read_bit(&alac->bc);\n alac->extra_bits = bitstream_read(&alac->bc, 2) << 3;\n bps = alac->sample_size - alac->extra_bits + channels - 1;\n if (bps > 32) {\n avpriv_report_missing_feature(avctx, "bps %d", bps);\n return AVERROR_PATCHWELCOME;\n }\n is_compressed = !bitstream_read_bit(&alac->bc);\n if (has_size)\n output_samples = bitstream_read(&alac->bc, 32);\n else\n output_samples = alac->max_samples_per_frame;\n if (!output_samples || output_samples > alac->max_samples_per_frame) {\n av_log(avctx, AV_LOG_ERROR, "invalid samples per frame: %"PRIu32"\\n",\n output_samples);\n return AVERROR_INVALIDDATA;\n }\n if (!alac->nb_samples) {\n frame->nb_samples = output_samples;\n if ((ret = ff_get_buffer(avctx, frame, 0)) < 0) {\n av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\\n");\n return ret;\n }\n } else if (output_samples != alac->nb_samples) {\n av_log(avctx, AV_LOG_ERROR, "sample count mismatch: %"PRIu32" != %d\\n",\n output_samples, alac->nb_samples);\n return AVERROR_INVALIDDATA;\n }\n alac->nb_samples = output_samples;\n if (alac->sample_size > 16) {\n for (ch = 0; ch < channels; ch++)\n alac->output_samples_buffer[ch] = (int32_t *)frame->extended_data[ch_index + ch];\n }\n if (is_compressed) {\n int16_t lpc_coefs[2][32];\n int lpc_order[2];\n int prediction_type[2];\n int lpc_quant[2];\n int rice_history_mult[2];\n if (!alac->rice_limit) {\n avpriv_request_sample(alac->avctx,\n "Compression with rice limit 0");\n return AVERROR(ENOSYS);\n }\n decorr_shift = bitstream_read(&alac->bc, 8);\n decorr_left_weight = bitstream_read(&alac->bc, 8);\n for (ch = 0; ch < channels; ch++) {\n prediction_type[ch] = bitstream_read(&alac->bc, 4);\n lpc_quant[ch] = bitstream_read(&alac->bc, 4);\n rice_history_mult[ch] = bitstream_read(&alac->bc, 3);\n lpc_order[ch] = bitstream_read(&alac->bc, 5);\n if (lpc_order[ch] >= alac->max_samples_per_frame)\n return AVERROR_INVALIDDATA;\n for (i = lpc_order[ch] - 1; i >= 0; i--)\n lpc_coefs[ch][i] = bitstream_read_signed(&alac->bc, 16);\n }\n if (alac->extra_bits) {\n for (i = 0; i < alac->nb_samples; i++) {\n for (ch = 0; ch < channels; ch++)\n alac->extra_bits_buffer[ch][i] = bitstream_read(&alac->bc, alac->extra_bits);\n }\n }\n for (ch = 0; ch < channels; ch++) {\n rice_decompress(alac, alac->predict_error_buffer[ch],\n alac->nb_samples, bps,\n rice_history_mult[ch] * alac->rice_history_mult / 4);\n if (prediction_type[ch] == 15) {\n lpc_prediction(alac->predict_error_buffer[ch],\n alac->predict_error_buffer[ch],\n alac->nb_samples, bps, NULL, 31, 0);\n } else if (prediction_type[ch] > 0) {\n av_log(avctx, AV_LOG_WARNING, "unknown prediction type: %i\\n",\n prediction_type[ch]);\n }\n lpc_prediction(alac->predict_error_buffer[ch],\n alac->output_samples_buffer[ch], alac->nb_samples,\n bps, lpc_coefs[ch], lpc_order[ch], lpc_quant[ch]);\n }\n } else {\n for (i = 0; i < alac->nb_samples; i++) {\n for (ch = 0; ch < channels; ch++) {\n alac->output_samples_buffer[ch][i] =\n bitstream_read_signed(&alac->bc, alac->sample_size);\n }\n }\n alac->extra_bits = 0;\n decorr_shift = 0;\n decorr_left_weight = 0;\n }\n if (channels == 2 && decorr_left_weight) {\n decorrelate_stereo(alac->output_samples_buffer, alac->nb_samples,\n decorr_shift, decorr_left_weight);\n }\n if (alac->extra_bits) {\n append_extra_bits(alac->output_samples_buffer, alac->extra_bits_buffer,\n alac->extra_bits, channels, alac->nb_samples);\n }\n switch(alac->sample_size) {\n case 16: {\n for (ch = 0; ch < channels; ch++) {\n int16_t *outbuffer = (int16_t *)frame->extended_data[ch_index + ch];\n for (i = 0; i < alac->nb_samples; i++)\n *outbuffer++ = alac->output_samples_buffer[ch][i];\n }}\n break;\n case 24: {\n for (ch = 0; ch < channels; ch++) {\n for (i = 0; i < alac->nb_samples; i++)\n alac->output_samples_buffer[ch][i] <<= 8;\n }}\n break;\n }\n return 0;\n}', 'static inline uint32_t bitstream_read(BitstreamContext *bc, unsigned n)\n{\n if (!n)\n return 0;\n if (n > bc->bits_left) {\n refill_32(bc);\n if (bc->bits_left < 32)\n bc->bits_left = n;\n }\n return get_val(bc, n);\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}'] |
26,967 | 0 | https://github.com/openssl/openssl/blob/a00ae6c46e0d7907a7c9f9e85334e968aa5fd338/crypto/x509/x509_vfy.c/#L589 | static int check_chain_extensions(X509_STORE_CTX *ctx)
{
int i, ok = 0, must_be_ca, plen = 0;
X509 *x;
int (*cb) (int xok, X509_STORE_CTX *xctx);
int proxy_path_length = 0;
int purpose;
int allow_proxy_certs;
cb = ctx->verify_cb;
must_be_ca = -1;
if (ctx->parent) {
allow_proxy_certs = 0;
purpose = X509_PURPOSE_CRL_SIGN;
} else {
allow_proxy_certs =
! !(ctx->param->flags & X509_V_FLAG_ALLOW_PROXY_CERTS);
if (getenv("OPENSSL_ALLOW_PROXY_CERTS"))
allow_proxy_certs = 1;
purpose = ctx->param->purpose;
}
for (i = 0; i < ctx->last_untrusted; i++) {
int ret;
x = sk_X509_value(ctx->chain, i);
if (!(ctx->param->flags & X509_V_FLAG_IGNORE_CRITICAL)
&& (x->ex_flags & EXFLAG_CRITICAL)) {
ctx->error = X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION;
ctx->error_depth = i;
ctx->current_cert = x;
ok = cb(0, ctx);
if (!ok)
goto end;
}
if (!allow_proxy_certs && (x->ex_flags & EXFLAG_PROXY)) {
ctx->error = X509_V_ERR_PROXY_CERTIFICATES_NOT_ALLOWED;
ctx->error_depth = i;
ctx->current_cert = x;
ok = cb(0, ctx);
if (!ok)
goto end;
}
ret = X509_check_ca(x);
switch (must_be_ca) {
case -1:
if ((ctx->param->flags & X509_V_FLAG_X509_STRICT)
&& (ret != 1) && (ret != 0)) {
ret = 0;
ctx->error = X509_V_ERR_INVALID_CA;
} else
ret = 1;
break;
case 0:
if (ret != 0) {
ret = 0;
ctx->error = X509_V_ERR_INVALID_NON_CA;
} else
ret = 1;
break;
default:
if ((ret == 0)
|| ((ctx->param->flags & X509_V_FLAG_X509_STRICT)
&& (ret != 1))) {
ret = 0;
ctx->error = X509_V_ERR_INVALID_CA;
} else
ret = 1;
break;
}
if (ret == 0) {
ctx->error_depth = i;
ctx->current_cert = x;
ok = cb(0, ctx);
if (!ok)
goto end;
}
if (ctx->param->purpose > 0) {
ret = X509_check_purpose(x, purpose, must_be_ca > 0);
if ((ret == 0)
|| ((ctx->param->flags & X509_V_FLAG_X509_STRICT)
&& (ret != 1))) {
ctx->error = X509_V_ERR_INVALID_PURPOSE;
ctx->error_depth = i;
ctx->current_cert = x;
ok = cb(0, ctx);
if (!ok)
goto end;
}
}
if ((i > 1) && !(x->ex_flags & EXFLAG_SI)
&& (x->ex_pathlen != -1)
&& (plen > (x->ex_pathlen + proxy_path_length + 1))) {
ctx->error = X509_V_ERR_PATH_LENGTH_EXCEEDED;
ctx->error_depth = i;
ctx->current_cert = x;
ok = cb(0, ctx);
if (!ok)
goto end;
}
if (!(x->ex_flags & EXFLAG_SI))
plen++;
if (x->ex_flags & EXFLAG_PROXY) {
if (x->ex_pcpathlen != -1 && i > x->ex_pcpathlen) {
ctx->error = X509_V_ERR_PROXY_PATH_LENGTH_EXCEEDED;
ctx->error_depth = i;
ctx->current_cert = x;
ok = cb(0, ctx);
if (!ok)
goto end;
}
proxy_path_length++;
must_be_ca = 0;
} else
must_be_ca = 1;
}
ok = 1;
end:
return ok;
} | ['static int check_chain_extensions(X509_STORE_CTX *ctx)\n{\n int i, ok = 0, must_be_ca, plen = 0;\n X509 *x;\n int (*cb) (int xok, X509_STORE_CTX *xctx);\n int proxy_path_length = 0;\n int purpose;\n int allow_proxy_certs;\n cb = ctx->verify_cb;\n must_be_ca = -1;\n if (ctx->parent) {\n allow_proxy_certs = 0;\n purpose = X509_PURPOSE_CRL_SIGN;\n } else {\n allow_proxy_certs =\n ! !(ctx->param->flags & X509_V_FLAG_ALLOW_PROXY_CERTS);\n if (getenv("OPENSSL_ALLOW_PROXY_CERTS"))\n allow_proxy_certs = 1;\n purpose = ctx->param->purpose;\n }\n for (i = 0; i < ctx->last_untrusted; i++) {\n int ret;\n x = sk_X509_value(ctx->chain, i);\n if (!(ctx->param->flags & X509_V_FLAG_IGNORE_CRITICAL)\n && (x->ex_flags & EXFLAG_CRITICAL)) {\n ctx->error = X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION;\n ctx->error_depth = i;\n ctx->current_cert = x;\n ok = cb(0, ctx);\n if (!ok)\n goto end;\n }\n if (!allow_proxy_certs && (x->ex_flags & EXFLAG_PROXY)) {\n ctx->error = X509_V_ERR_PROXY_CERTIFICATES_NOT_ALLOWED;\n ctx->error_depth = i;\n ctx->current_cert = x;\n ok = cb(0, ctx);\n if (!ok)\n goto end;\n }\n ret = X509_check_ca(x);\n switch (must_be_ca) {\n case -1:\n if ((ctx->param->flags & X509_V_FLAG_X509_STRICT)\n && (ret != 1) && (ret != 0)) {\n ret = 0;\n ctx->error = X509_V_ERR_INVALID_CA;\n } else\n ret = 1;\n break;\n case 0:\n if (ret != 0) {\n ret = 0;\n ctx->error = X509_V_ERR_INVALID_NON_CA;\n } else\n ret = 1;\n break;\n default:\n if ((ret == 0)\n || ((ctx->param->flags & X509_V_FLAG_X509_STRICT)\n && (ret != 1))) {\n ret = 0;\n ctx->error = X509_V_ERR_INVALID_CA;\n } else\n ret = 1;\n break;\n }\n if (ret == 0) {\n ctx->error_depth = i;\n ctx->current_cert = x;\n ok = cb(0, ctx);\n if (!ok)\n goto end;\n }\n if (ctx->param->purpose > 0) {\n ret = X509_check_purpose(x, purpose, must_be_ca > 0);\n if ((ret == 0)\n || ((ctx->param->flags & X509_V_FLAG_X509_STRICT)\n && (ret != 1))) {\n ctx->error = X509_V_ERR_INVALID_PURPOSE;\n ctx->error_depth = i;\n ctx->current_cert = x;\n ok = cb(0, ctx);\n if (!ok)\n goto end;\n }\n }\n if ((i > 1) && !(x->ex_flags & EXFLAG_SI)\n && (x->ex_pathlen != -1)\n && (plen > (x->ex_pathlen + proxy_path_length + 1))) {\n ctx->error = X509_V_ERR_PATH_LENGTH_EXCEEDED;\n ctx->error_depth = i;\n ctx->current_cert = x;\n ok = cb(0, ctx);\n if (!ok)\n goto end;\n }\n if (!(x->ex_flags & EXFLAG_SI))\n plen++;\n if (x->ex_flags & EXFLAG_PROXY) {\n if (x->ex_pcpathlen != -1 && i > x->ex_pcpathlen) {\n ctx->error = X509_V_ERR_PROXY_PATH_LENGTH_EXCEEDED;\n ctx->error_depth = i;\n ctx->current_cert = x;\n ok = cb(0, ctx);\n if (!ok)\n goto end;\n }\n proxy_path_length++;\n must_be_ca = 0;\n } else\n must_be_ca = 1;\n }\n ok = 1;\n end:\n return ok;\n}', 'void *sk_value(const _STACK *st, int i)\n{\n if (!st || (i < 0) || (i >= st->num))\n return NULL;\n return st->data[i];\n}'] |
26,968 | 0 | https://github.com/libav/libav/blob/5afb94c817abffad030c6b94d7003dca8aace3d5/libavcodec/motion_est_template.c/#L763 | static int sab_diamond_search(MpegEncContext * s, int *best, int dmin,
int src_index, int ref_index, const int penalty_factor,
int size, int h, int flags)
{
MotionEstContext * const c= &s->me;
me_cmp_func cmpf, chroma_cmpf;
Minima minima[MAX_SAB_SIZE];
const int minima_count= FFABS(c->dia_size);
int i, j;
LOAD_COMMON
LOAD_COMMON2
unsigned map_generation = c->map_generation;
cmpf = s->mecc.me_cmp[size];
chroma_cmpf = s->mecc.me_cmp[size + 1];
for(j=i=0; i<ME_MAP_SIZE && j<MAX_SAB_SIZE; i++){
uint32_t key= map[i];
key += (1<<(ME_MAP_MV_BITS-1)) + (1<<(2*ME_MAP_MV_BITS-1));
if ((key & (-(1 << (2 * ME_MAP_MV_BITS)))) != map_generation)
continue;
minima[j].height= score_map[i];
minima[j].x= key & ((1<<ME_MAP_MV_BITS)-1); key>>=ME_MAP_MV_BITS;
minima[j].y= key & ((1<<ME_MAP_MV_BITS)-1);
minima[j].x-= (1<<(ME_MAP_MV_BITS-1));
minima[j].y-= (1<<(ME_MAP_MV_BITS-1));
if( minima[j].x > xmax || minima[j].x < xmin
|| minima[j].y > ymax || minima[j].y < ymin)
continue;
minima[j].checked=0;
if(minima[j].x || minima[j].y)
minima[j].height+= (mv_penalty[((minima[j].x)<<shift)-pred_x] + mv_penalty[((minima[j].y)<<shift)-pred_y])*penalty_factor;
j++;
}
qsort(minima, j, sizeof(Minima), minima_cmp);
for(; j<minima_count; j++){
minima[j].height=256*256*256*64;
minima[j].checked=0;
minima[j].x= minima[j].y=0;
}
for(i=0; i<minima_count; i++){
const int x= minima[i].x;
const int y= minima[i].y;
int d;
if(minima[i].checked) continue;
if( x >= xmax || x <= xmin
|| y >= ymax || y <= ymin)
continue;
SAB_CHECK_MV(x-1, y)
SAB_CHECK_MV(x+1, y)
SAB_CHECK_MV(x , y-1)
SAB_CHECK_MV(x , y+1)
minima[i].checked= 1;
}
best[0]= minima[0].x;
best[1]= minima[0].y;
dmin= minima[0].height;
if( best[0] < xmax && best[0] > xmin
&& best[1] < ymax && best[1] > ymin){
int d;
CHECK_MV(best[0]-1, best[1])
CHECK_MV(best[0]+1, best[1])
CHECK_MV(best[0], best[1]-1)
CHECK_MV(best[0], best[1]+1)
}
return dmin;
} | ['static int sab_diamond_search(MpegEncContext * s, int *best, int dmin,\n int src_index, int ref_index, const int penalty_factor,\n int size, int h, int flags)\n{\n MotionEstContext * const c= &s->me;\n me_cmp_func cmpf, chroma_cmpf;\n Minima minima[MAX_SAB_SIZE];\n const int minima_count= FFABS(c->dia_size);\n int i, j;\n LOAD_COMMON\n LOAD_COMMON2\n unsigned map_generation = c->map_generation;\n cmpf = s->mecc.me_cmp[size];\n chroma_cmpf = s->mecc.me_cmp[size + 1];\n for(j=i=0; i<ME_MAP_SIZE && j<MAX_SAB_SIZE; i++){\n uint32_t key= map[i];\n key += (1<<(ME_MAP_MV_BITS-1)) + (1<<(2*ME_MAP_MV_BITS-1));\n if ((key & (-(1 << (2 * ME_MAP_MV_BITS)))) != map_generation)\n continue;\n minima[j].height= score_map[i];\n minima[j].x= key & ((1<<ME_MAP_MV_BITS)-1); key>>=ME_MAP_MV_BITS;\n minima[j].y= key & ((1<<ME_MAP_MV_BITS)-1);\n minima[j].x-= (1<<(ME_MAP_MV_BITS-1));\n minima[j].y-= (1<<(ME_MAP_MV_BITS-1));\n if( minima[j].x > xmax || minima[j].x < xmin\n || minima[j].y > ymax || minima[j].y < ymin)\n continue;\n minima[j].checked=0;\n if(minima[j].x || minima[j].y)\n minima[j].height+= (mv_penalty[((minima[j].x)<<shift)-pred_x] + mv_penalty[((minima[j].y)<<shift)-pred_y])*penalty_factor;\n j++;\n }\n qsort(minima, j, sizeof(Minima), minima_cmp);\n for(; j<minima_count; j++){\n minima[j].height=256*256*256*64;\n minima[j].checked=0;\n minima[j].x= minima[j].y=0;\n }\n for(i=0; i<minima_count; i++){\n const int x= minima[i].x;\n const int y= minima[i].y;\n int d;\n if(minima[i].checked) continue;\n if( x >= xmax || x <= xmin\n || y >= ymax || y <= ymin)\n continue;\n SAB_CHECK_MV(x-1, y)\n SAB_CHECK_MV(x+1, y)\n SAB_CHECK_MV(x , y-1)\n SAB_CHECK_MV(x , y+1)\n minima[i].checked= 1;\n }\n best[0]= minima[0].x;\n best[1]= minima[0].y;\n dmin= minima[0].height;\n if( best[0] < xmax && best[0] > xmin\n && best[1] < ymax && best[1] > ymin){\n int d;\n CHECK_MV(best[0]-1, best[1])\n CHECK_MV(best[0]+1, best[1])\n CHECK_MV(best[0], best[1]-1)\n CHECK_MV(best[0], best[1]+1)\n }\n return dmin;\n}'] |
26,969 | 0 | https://github.com/nginx/nginx/blob/5c1f76f0e933335784ebb4811965230ab8f20233/src/http/modules/ngx_http_proxy_module.c/#L1330 | static ngx_int_t
ngx_http_proxy_create_request(ngx_http_request_t *r)
{
size_t len, uri_len, loc_len, body_len;
uintptr_t escape;
ngx_buf_t *b;
ngx_str_t method;
ngx_uint_t i, unparsed_uri;
ngx_chain_t *cl, *body;
ngx_list_part_t *part;
ngx_table_elt_t *header;
ngx_http_upstream_t *u;
ngx_http_proxy_ctx_t *ctx;
ngx_http_script_code_pt code;
ngx_http_proxy_headers_t *headers;
ngx_http_script_engine_t e, le;
ngx_http_proxy_loc_conf_t *plcf;
ngx_http_script_len_code_pt lcode;
u = r->upstream;
plcf = ngx_http_get_module_loc_conf(r, ngx_http_proxy_module);
#if (NGX_HTTP_CACHE)
headers = u->cacheable ? &plcf->headers_cache : &plcf->headers;
#else
headers = &plcf->headers;
#endif
if (u->method.len) {
method = u->method;
} else if (plcf->method.len) {
method = plcf->method;
} else {
method = r->method_name;
}
ctx = ngx_http_get_module_ctx(r, ngx_http_proxy_module);
if (method.len == 4
&& ngx_strncasecmp(method.data, (u_char *) "HEAD", 4) == 0)
{
ctx->head = 1;
}
len = method.len + 1 + sizeof(ngx_http_proxy_version) - 1
+ sizeof(CRLF) - 1;
escape = 0;
loc_len = 0;
unparsed_uri = 0;
if (plcf->proxy_lengths && ctx->vars.uri.len) {
uri_len = ctx->vars.uri.len;
} else if (ctx->vars.uri.len == 0 && r->valid_unparsed_uri && r == r->main)
{
unparsed_uri = 1;
uri_len = r->unparsed_uri.len;
} else {
loc_len = (r->valid_location && ctx->vars.uri.len) ?
plcf->location.len : 0;
if (r->quoted_uri || r->space_in_uri || r->internal) {
escape = 2 * ngx_escape_uri(NULL, r->uri.data + loc_len,
r->uri.len - loc_len, NGX_ESCAPE_URI);
}
uri_len = ctx->vars.uri.len + r->uri.len - loc_len + escape
+ sizeof("?") - 1 + r->args.len;
}
if (uri_len == 0) {
ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
"zero length URI to proxy");
return NGX_ERROR;
}
len += uri_len;
ngx_memzero(&le, sizeof(ngx_http_script_engine_t));
ngx_http_script_flush_no_cacheable_variables(r, plcf->body_flushes);
ngx_http_script_flush_no_cacheable_variables(r, headers->flushes);
if (plcf->body_lengths) {
le.ip = plcf->body_lengths->elts;
le.request = r;
le.flushed = 1;
body_len = 0;
while (*(uintptr_t *) le.ip) {
lcode = *(ngx_http_script_len_code_pt *) le.ip;
body_len += lcode(&le);
}
ctx->internal_body_length = body_len;
len += body_len;
} else if (r->headers_in.chunked && r->reading_body) {
ctx->internal_body_length = -1;
ctx->internal_chunked = 1;
} else {
ctx->internal_body_length = r->headers_in.content_length_n;
}
le.ip = headers->lengths->elts;
le.request = r;
le.flushed = 1;
while (*(uintptr_t *) le.ip) {
while (*(uintptr_t *) le.ip) {
lcode = *(ngx_http_script_len_code_pt *) le.ip;
len += lcode(&le);
}
le.ip += sizeof(uintptr_t);
}
if (plcf->upstream.pass_request_headers) {
part = &r->headers_in.headers.part;
header = part->elts;
for (i = 0; ; i++) {
if (i >= part->nelts) {
if (part->next == NULL) {
break;
}
part = part->next;
header = part->elts;
i = 0;
}
if (ngx_hash_find(&headers->hash, header[i].hash,
header[i].lowcase_key, header[i].key.len))
{
continue;
}
len += header[i].key.len + sizeof(": ") - 1
+ header[i].value.len + sizeof(CRLF) - 1;
}
}
b = ngx_create_temp_buf(r->pool, len);
if (b == NULL) {
return NGX_ERROR;
}
cl = ngx_alloc_chain_link(r->pool);
if (cl == NULL) {
return NGX_ERROR;
}
cl->buf = b;
b->last = ngx_copy(b->last, method.data, method.len);
*b->last++ = ' ';
u->uri.data = b->last;
if (plcf->proxy_lengths && ctx->vars.uri.len) {
b->last = ngx_copy(b->last, ctx->vars.uri.data, ctx->vars.uri.len);
} else if (unparsed_uri) {
b->last = ngx_copy(b->last, r->unparsed_uri.data, r->unparsed_uri.len);
} else {
if (r->valid_location) {
b->last = ngx_copy(b->last, ctx->vars.uri.data, ctx->vars.uri.len);
}
if (escape) {
ngx_escape_uri(b->last, r->uri.data + loc_len,
r->uri.len - loc_len, NGX_ESCAPE_URI);
b->last += r->uri.len - loc_len + escape;
} else {
b->last = ngx_copy(b->last, r->uri.data + loc_len,
r->uri.len - loc_len);
}
if (r->args.len > 0) {
*b->last++ = '?';
b->last = ngx_copy(b->last, r->args.data, r->args.len);
}
}
u->uri.len = b->last - u->uri.data;
if (plcf->http_version == NGX_HTTP_VERSION_11) {
b->last = ngx_cpymem(b->last, ngx_http_proxy_version_11,
sizeof(ngx_http_proxy_version_11) - 1);
} else {
b->last = ngx_cpymem(b->last, ngx_http_proxy_version,
sizeof(ngx_http_proxy_version) - 1);
}
ngx_memzero(&e, sizeof(ngx_http_script_engine_t));
e.ip = headers->values->elts;
e.pos = b->last;
e.request = r;
e.flushed = 1;
le.ip = headers->lengths->elts;
while (*(uintptr_t *) le.ip) {
lcode = *(ngx_http_script_len_code_pt *) le.ip;
(void) lcode(&le);
if (*(ngx_http_script_len_code_pt *) le.ip) {
for (len = 0; *(uintptr_t *) le.ip; len += lcode(&le)) {
lcode = *(ngx_http_script_len_code_pt *) le.ip;
}
e.skip = (len == sizeof(CRLF) - 1) ? 1 : 0;
} else {
e.skip = 0;
}
le.ip += sizeof(uintptr_t);
while (*(uintptr_t *) e.ip) {
code = *(ngx_http_script_code_pt *) e.ip;
code((ngx_http_script_engine_t *) &e);
}
e.ip += sizeof(uintptr_t);
}
b->last = e.pos;
if (plcf->upstream.pass_request_headers) {
part = &r->headers_in.headers.part;
header = part->elts;
for (i = 0; ; i++) {
if (i >= part->nelts) {
if (part->next == NULL) {
break;
}
part = part->next;
header = part->elts;
i = 0;
}
if (ngx_hash_find(&headers->hash, header[i].hash,
header[i].lowcase_key, header[i].key.len))
{
continue;
}
b->last = ngx_copy(b->last, header[i].key.data, header[i].key.len);
*b->last++ = ':'; *b->last++ = ' ';
b->last = ngx_copy(b->last, header[i].value.data,
header[i].value.len);
*b->last++ = CR; *b->last++ = LF;
ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
"http proxy header: \"%V: %V\"",
&header[i].key, &header[i].value);
}
}
*b->last++ = CR; *b->last++ = LF;
if (plcf->body_values) {
e.ip = plcf->body_values->elts;
e.pos = b->last;
e.skip = 0;
while (*(uintptr_t *) e.ip) {
code = *(ngx_http_script_code_pt *) e.ip;
code((ngx_http_script_engine_t *) &e);
}
b->last = e.pos;
}
ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
"http proxy header:%N\"%*s\"",
(size_t) (b->last - b->pos), b->pos);
if (r->request_body_no_buffering) {
u->request_bufs = cl;
if (ctx->internal_chunked) {
u->output.output_filter = ngx_http_proxy_body_output_filter;
u->output.filter_ctx = r;
}
} else if (plcf->body_values == NULL && plcf->upstream.pass_request_body) {
body = u->request_bufs;
u->request_bufs = cl;
while (body) {
b = ngx_alloc_buf(r->pool);
if (b == NULL) {
return NGX_ERROR;
}
ngx_memcpy(b, body->buf, sizeof(ngx_buf_t));
cl->next = ngx_alloc_chain_link(r->pool);
if (cl->next == NULL) {
return NGX_ERROR;
}
cl = cl->next;
cl->buf = b;
body = body->next;
}
} else {
u->request_bufs = cl;
}
b->flush = 1;
cl->next = NULL;
return NGX_OK;
} | ['static ngx_int_t\nngx_http_proxy_create_request(ngx_http_request_t *r)\n{\n size_t len, uri_len, loc_len, body_len;\n uintptr_t escape;\n ngx_buf_t *b;\n ngx_str_t method;\n ngx_uint_t i, unparsed_uri;\n ngx_chain_t *cl, *body;\n ngx_list_part_t *part;\n ngx_table_elt_t *header;\n ngx_http_upstream_t *u;\n ngx_http_proxy_ctx_t *ctx;\n ngx_http_script_code_pt code;\n ngx_http_proxy_headers_t *headers;\n ngx_http_script_engine_t e, le;\n ngx_http_proxy_loc_conf_t *plcf;\n ngx_http_script_len_code_pt lcode;\n u = r->upstream;\n plcf = ngx_http_get_module_loc_conf(r, ngx_http_proxy_module);\n#if (NGX_HTTP_CACHE)\n headers = u->cacheable ? &plcf->headers_cache : &plcf->headers;\n#else\n headers = &plcf->headers;\n#endif\n if (u->method.len) {\n method = u->method;\n } else if (plcf->method.len) {\n method = plcf->method;\n } else {\n method = r->method_name;\n }\n ctx = ngx_http_get_module_ctx(r, ngx_http_proxy_module);\n if (method.len == 4\n && ngx_strncasecmp(method.data, (u_char *) "HEAD", 4) == 0)\n {\n ctx->head = 1;\n }\n len = method.len + 1 + sizeof(ngx_http_proxy_version) - 1\n + sizeof(CRLF) - 1;\n escape = 0;\n loc_len = 0;\n unparsed_uri = 0;\n if (plcf->proxy_lengths && ctx->vars.uri.len) {\n uri_len = ctx->vars.uri.len;\n } else if (ctx->vars.uri.len == 0 && r->valid_unparsed_uri && r == r->main)\n {\n unparsed_uri = 1;\n uri_len = r->unparsed_uri.len;\n } else {\n loc_len = (r->valid_location && ctx->vars.uri.len) ?\n plcf->location.len : 0;\n if (r->quoted_uri || r->space_in_uri || r->internal) {\n escape = 2 * ngx_escape_uri(NULL, r->uri.data + loc_len,\n r->uri.len - loc_len, NGX_ESCAPE_URI);\n }\n uri_len = ctx->vars.uri.len + r->uri.len - loc_len + escape\n + sizeof("?") - 1 + r->args.len;\n }\n if (uri_len == 0) {\n ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,\n "zero length URI to proxy");\n return NGX_ERROR;\n }\n len += uri_len;\n ngx_memzero(&le, sizeof(ngx_http_script_engine_t));\n ngx_http_script_flush_no_cacheable_variables(r, plcf->body_flushes);\n ngx_http_script_flush_no_cacheable_variables(r, headers->flushes);\n if (plcf->body_lengths) {\n le.ip = plcf->body_lengths->elts;\n le.request = r;\n le.flushed = 1;\n body_len = 0;\n while (*(uintptr_t *) le.ip) {\n lcode = *(ngx_http_script_len_code_pt *) le.ip;\n body_len += lcode(&le);\n }\n ctx->internal_body_length = body_len;\n len += body_len;\n } else if (r->headers_in.chunked && r->reading_body) {\n ctx->internal_body_length = -1;\n ctx->internal_chunked = 1;\n } else {\n ctx->internal_body_length = r->headers_in.content_length_n;\n }\n le.ip = headers->lengths->elts;\n le.request = r;\n le.flushed = 1;\n while (*(uintptr_t *) le.ip) {\n while (*(uintptr_t *) le.ip) {\n lcode = *(ngx_http_script_len_code_pt *) le.ip;\n len += lcode(&le);\n }\n le.ip += sizeof(uintptr_t);\n }\n if (plcf->upstream.pass_request_headers) {\n part = &r->headers_in.headers.part;\n header = part->elts;\n for (i = 0; ; i++) {\n if (i >= part->nelts) {\n if (part->next == NULL) {\n break;\n }\n part = part->next;\n header = part->elts;\n i = 0;\n }\n if (ngx_hash_find(&headers->hash, header[i].hash,\n header[i].lowcase_key, header[i].key.len))\n {\n continue;\n }\n len += header[i].key.len + sizeof(": ") - 1\n + header[i].value.len + sizeof(CRLF) - 1;\n }\n }\n b = ngx_create_temp_buf(r->pool, len);\n if (b == NULL) {\n return NGX_ERROR;\n }\n cl = ngx_alloc_chain_link(r->pool);\n if (cl == NULL) {\n return NGX_ERROR;\n }\n cl->buf = b;\n b->last = ngx_copy(b->last, method.data, method.len);\n *b->last++ = \' \';\n u->uri.data = b->last;\n if (plcf->proxy_lengths && ctx->vars.uri.len) {\n b->last = ngx_copy(b->last, ctx->vars.uri.data, ctx->vars.uri.len);\n } else if (unparsed_uri) {\n b->last = ngx_copy(b->last, r->unparsed_uri.data, r->unparsed_uri.len);\n } else {\n if (r->valid_location) {\n b->last = ngx_copy(b->last, ctx->vars.uri.data, ctx->vars.uri.len);\n }\n if (escape) {\n ngx_escape_uri(b->last, r->uri.data + loc_len,\n r->uri.len - loc_len, NGX_ESCAPE_URI);\n b->last += r->uri.len - loc_len + escape;\n } else {\n b->last = ngx_copy(b->last, r->uri.data + loc_len,\n r->uri.len - loc_len);\n }\n if (r->args.len > 0) {\n *b->last++ = \'?\';\n b->last = ngx_copy(b->last, r->args.data, r->args.len);\n }\n }\n u->uri.len = b->last - u->uri.data;\n if (plcf->http_version == NGX_HTTP_VERSION_11) {\n b->last = ngx_cpymem(b->last, ngx_http_proxy_version_11,\n sizeof(ngx_http_proxy_version_11) - 1);\n } else {\n b->last = ngx_cpymem(b->last, ngx_http_proxy_version,\n sizeof(ngx_http_proxy_version) - 1);\n }\n ngx_memzero(&e, sizeof(ngx_http_script_engine_t));\n e.ip = headers->values->elts;\n e.pos = b->last;\n e.request = r;\n e.flushed = 1;\n le.ip = headers->lengths->elts;\n while (*(uintptr_t *) le.ip) {\n lcode = *(ngx_http_script_len_code_pt *) le.ip;\n (void) lcode(&le);\n if (*(ngx_http_script_len_code_pt *) le.ip) {\n for (len = 0; *(uintptr_t *) le.ip; len += lcode(&le)) {\n lcode = *(ngx_http_script_len_code_pt *) le.ip;\n }\n e.skip = (len == sizeof(CRLF) - 1) ? 1 : 0;\n } else {\n e.skip = 0;\n }\n le.ip += sizeof(uintptr_t);\n while (*(uintptr_t *) e.ip) {\n code = *(ngx_http_script_code_pt *) e.ip;\n code((ngx_http_script_engine_t *) &e);\n }\n e.ip += sizeof(uintptr_t);\n }\n b->last = e.pos;\n if (plcf->upstream.pass_request_headers) {\n part = &r->headers_in.headers.part;\n header = part->elts;\n for (i = 0; ; i++) {\n if (i >= part->nelts) {\n if (part->next == NULL) {\n break;\n }\n part = part->next;\n header = part->elts;\n i = 0;\n }\n if (ngx_hash_find(&headers->hash, header[i].hash,\n header[i].lowcase_key, header[i].key.len))\n {\n continue;\n }\n b->last = ngx_copy(b->last, header[i].key.data, header[i].key.len);\n *b->last++ = \':\'; *b->last++ = \' \';\n b->last = ngx_copy(b->last, header[i].value.data,\n header[i].value.len);\n *b->last++ = CR; *b->last++ = LF;\n ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,\n "http proxy header: \\"%V: %V\\"",\n &header[i].key, &header[i].value);\n }\n }\n *b->last++ = CR; *b->last++ = LF;\n if (plcf->body_values) {\n e.ip = plcf->body_values->elts;\n e.pos = b->last;\n e.skip = 0;\n while (*(uintptr_t *) e.ip) {\n code = *(ngx_http_script_code_pt *) e.ip;\n code((ngx_http_script_engine_t *) &e);\n }\n b->last = e.pos;\n }\n ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,\n "http proxy header:%N\\"%*s\\"",\n (size_t) (b->last - b->pos), b->pos);\n if (r->request_body_no_buffering) {\n u->request_bufs = cl;\n if (ctx->internal_chunked) {\n u->output.output_filter = ngx_http_proxy_body_output_filter;\n u->output.filter_ctx = r;\n }\n } else if (plcf->body_values == NULL && plcf->upstream.pass_request_body) {\n body = u->request_bufs;\n u->request_bufs = cl;\n while (body) {\n b = ngx_alloc_buf(r->pool);\n if (b == NULL) {\n return NGX_ERROR;\n }\n ngx_memcpy(b, body->buf, sizeof(ngx_buf_t));\n cl->next = ngx_alloc_chain_link(r->pool);\n if (cl->next == NULL) {\n return NGX_ERROR;\n }\n cl = cl->next;\n cl->buf = b;\n body = body->next;\n }\n } else {\n u->request_bufs = cl;\n }\n b->flush = 1;\n cl->next = NULL;\n return NGX_OK;\n}'] |
26,970 | 0 | https://github.com/openssl/openssl/blob/27a3d9f9aa1ca6137ffd13a23775709c6f1ef567/crypto/bn/bntest.c/#L1259 | int test_gf2m_mod_sqr(BIO *bp,BN_CTX *ctx)
{
BIGNUM *a,*b[2],*c,*d;
int i, j, ret = 0;
int p0[] = {163,7,6,3,0,-1};
int p1[] = {193,15,0,-1};
a=BN_new();
b[0]=BN_new();
b[1]=BN_new();
c=BN_new();
d=BN_new();
BN_GF2m_arr2poly(p0, b[0]);
BN_GF2m_arr2poly(p1, b[1]);
for (i=0; i<num0; i++)
{
BN_bntest_rand(a, 1024, 0, 0);
for (j=0; j < 2; j++)
{
BN_GF2m_mod_sqr(c, a, b[j], ctx);
BN_copy(d, a);
BN_GF2m_mod_mul(d, a, d, b[j], ctx);
#if 0
if (bp != NULL)
{
if (!results)
{
BN_print(bp,a);
BIO_puts(bp," ^ 2 % ");
BN_print(bp,b[j]);
BIO_puts(bp, " = ");
BN_print(bp,c);
BIO_puts(bp,"; a * a = ");
BN_print(bp,d);
BIO_puts(bp,"\n");
}
}
#endif
BN_GF2m_add(d, c, d);
if(!BN_is_zero(d))
{
fprintf(stderr,"GF(2^m) modular squaring test failed!\n");
goto err;
}
}
}
ret = 1;
err:
BN_free(a);
BN_free(b[0]);
BN_free(b[1]);
BN_free(c);
BN_free(d);
return ret;
} | ['int test_gf2m_mod_sqr(BIO *bp,BN_CTX *ctx)\n\t{\n\tBIGNUM *a,*b[2],*c,*d;\n\tint i, j, ret = 0;\n\tint p0[] = {163,7,6,3,0,-1};\n\tint p1[] = {193,15,0,-1};\n\ta=BN_new();\n\tb[0]=BN_new();\n\tb[1]=BN_new();\n\tc=BN_new();\n\td=BN_new();\n\tBN_GF2m_arr2poly(p0, b[0]);\n\tBN_GF2m_arr2poly(p1, b[1]);\n\tfor (i=0; i<num0; i++)\n\t\t{\n\t\tBN_bntest_rand(a, 1024, 0, 0);\n\t\tfor (j=0; j < 2; j++)\n\t\t\t{\n\t\t\tBN_GF2m_mod_sqr(c, a, b[j], ctx);\n\t\t\tBN_copy(d, a);\n\t\t\tBN_GF2m_mod_mul(d, a, d, b[j], ctx);\n#if 0\n\t\t\tif (bp != NULL)\n\t\t\t\t{\n\t\t\t\tif (!results)\n\t\t\t\t\t{\n\t\t\t\t\tBN_print(bp,a);\n\t\t\t\t\tBIO_puts(bp," ^ 2 % ");\n\t\t\t\t\tBN_print(bp,b[j]);\n\t\t\t\t\tBIO_puts(bp, " = ");\n\t\t\t\t\tBN_print(bp,c);\n\t\t\t\t\tBIO_puts(bp,"; a * a = ");\n\t\t\t\t\tBN_print(bp,d);\n\t\t\t\t\tBIO_puts(bp,"\\n");\n\t\t\t\t\t}\n\t\t\t\t}\n#endif\n\t\t\tBN_GF2m_add(d, c, d);\n\t\t\tif(!BN_is_zero(d))\n\t\t\t\t{\n\t\t\t\tfprintf(stderr,"GF(2^m) modular squaring test failed!\\n");\n\t\t\t\tgoto err;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\tret = 1;\n err:\n\tBN_free(a);\n\tBN_free(b[0]);\n\tBN_free(b[1]);\n\tBN_free(c);\n\tBN_free(d);\n\treturn ret;\n\t}', 'BIGNUM *BN_new(void)\n\t{\n\tBIGNUM *ret;\n\tif ((ret=(BIGNUM *)OPENSSL_malloc(sizeof(BIGNUM))) == NULL)\n\t\t{\n\t\tBNerr(BN_F_BN_NEW,ERR_R_MALLOC_FAILURE);\n\t\treturn(NULL);\n\t\t}\n\tret->flags=BN_FLG_MALLOCED;\n\tret->top=0;\n\tret->neg=0;\n\tret->dmax=0;\n\tret->d=NULL;\n\tbn_check_top(ret);\n\treturn(ret);\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}', 'int BN_GF2m_arr2poly(const int p[], BIGNUM *a)\n\t{\n\tint i;\n\tbn_check_top(a);\n\tBN_zero(a);\n\tfor (i = 0; p[i] != -1; i++)\n\t\t{\n\t\tif (BN_set_bit(a, p[i]) == 0)\n\t\t\treturn 0;\n\t\t}\n\tbn_check_top(a);\n\treturn 1;\n\t}', 'int BN_set_word(BIGNUM *a, BN_ULONG w)\n\t{\n\tbn_check_top(a);\n\tif (bn_expand(a,(int)sizeof(BN_ULONG)*8) == NULL) return(0);\n\ta->neg = 0;\n\ta->d[0] = w;\n\ta->top = (w ? 1 : 0);\n\tbn_check_top(a);\n\treturn(1);\n\t}'] |
26,971 | 0 | https://github.com/libav/libav/blob/b73a8922d818c7f909855557718d4c3bfacbd92d/libavcodec/ljpegenc.c/#L97 | static int ljpeg_encode_bgr(AVCodecContext *avctx, PutBitContext *pb,
const AVFrame *frame)
{
LJpegEncContext *s = avctx->priv_data;
const int width = frame->width;
const int height = frame->height;
const int linesize = frame->linesize[0];
uint16_t (*buffer)[4] = s->scratch;
const int predictor = avctx->prediction_method+1;
int left[3], top[3], topleft[3];
int x, y, i;
for (i = 0; i < 3; i++)
buffer[0][i] = 1 << (9 - 1);
for (y = 0; y < height; y++) {
const int modified_predictor = y ? predictor : 1;
uint8_t *ptr = frame->data[0] + (linesize * y);
if (pb->buf_end - pb->buf - (put_bits_count(pb) >> 3) < width * 3 * 3) {
av_log(avctx, AV_LOG_ERROR, "encoded frame too large\n");
return -1;
}
for (i = 0; i < 3; i++)
top[i]= left[i]= topleft[i]= buffer[0][i];
for (x = 0; x < width; x++) {
buffer[x][1] = ptr[3 * x + 0] - ptr[3 * x + 1] + 0x100;
buffer[x][2] = ptr[3 * x + 2] - ptr[3 * x + 1] + 0x100;
buffer[x][0] = (ptr[3 * x + 0] + 2 * ptr[3 * x + 1] + ptr[3 * x + 2]) >> 2;
for (i = 0; i < 3; i++) {
int pred, diff;
PREDICT(pred, topleft[i], top[i], left[i], modified_predictor);
topleft[i] = top[i];
top[i] = buffer[x+1][i];
left[i] = buffer[x][i];
diff = ((left[i] - pred + 0x100) & 0x1FF) - 0x100;
if (i == 0)
ff_mjpeg_encode_dc(pb, diff, s->huff_size_dc_luminance, s->huff_code_dc_luminance);
else
ff_mjpeg_encode_dc(pb, diff, s->huff_size_dc_chrominance, s->huff_code_dc_chrominance);
}
}
}
return 0;
} | ['static int ljpeg_encode_bgr(AVCodecContext *avctx, PutBitContext *pb,\n const AVFrame *frame)\n{\n LJpegEncContext *s = avctx->priv_data;\n const int width = frame->width;\n const int height = frame->height;\n const int linesize = frame->linesize[0];\n uint16_t (*buffer)[4] = s->scratch;\n const int predictor = avctx->prediction_method+1;\n int left[3], top[3], topleft[3];\n int x, y, i;\n for (i = 0; i < 3; i++)\n buffer[0][i] = 1 << (9 - 1);\n for (y = 0; y < height; y++) {\n const int modified_predictor = y ? predictor : 1;\n uint8_t *ptr = frame->data[0] + (linesize * y);\n if (pb->buf_end - pb->buf - (put_bits_count(pb) >> 3) < width * 3 * 3) {\n av_log(avctx, AV_LOG_ERROR, "encoded frame too large\\n");\n return -1;\n }\n for (i = 0; i < 3; i++)\n top[i]= left[i]= topleft[i]= buffer[0][i];\n for (x = 0; x < width; x++) {\n buffer[x][1] = ptr[3 * x + 0] - ptr[3 * x + 1] + 0x100;\n buffer[x][2] = ptr[3 * x + 2] - ptr[3 * x + 1] + 0x100;\n buffer[x][0] = (ptr[3 * x + 0] + 2 * ptr[3 * x + 1] + ptr[3 * x + 2]) >> 2;\n for (i = 0; i < 3; i++) {\n int pred, diff;\n PREDICT(pred, topleft[i], top[i], left[i], modified_predictor);\n topleft[i] = top[i];\n top[i] = buffer[x+1][i];\n left[i] = buffer[x][i];\n diff = ((left[i] - pred + 0x100) & 0x1FF) - 0x100;\n if (i == 0)\n ff_mjpeg_encode_dc(pb, diff, s->huff_size_dc_luminance, s->huff_code_dc_luminance);\n else\n ff_mjpeg_encode_dc(pb, diff, s->huff_size_dc_chrominance, s->huff_code_dc_chrominance);\n }\n }\n }\n return 0;\n}'] |
26,972 | 0 | https://github.com/openssl/openssl/blob/0bde1089f895718db2fe2637fda4a0c2ed6df904/ssl/s2_clnt.c/#L956 | int ssl2_set_certificate(SSL *s, int type, int len, unsigned char *data)
{
STACK_OF(X509) *sk=NULL;
EVP_PKEY *pkey=NULL;
SESS_CERT *sc=NULL;
int i;
X509 *x509=NULL;
int ret=0;
x509=d2i_X509(NULL,&data,(long)len);
if (x509 == NULL)
{
SSLerr(SSL_F_SSL2_SET_CERTIFICATE,ERR_R_X509_LIB);
goto err;
}
if ((sk=sk_X509_new_null()) == NULL || !sk_X509_push(sk,x509))
{
SSLerr(SSL_F_SSL2_SET_CERTIFICATE,ERR_R_MALLOC_FAILURE);
goto err;
}
i=ssl_verify_cert_chain(s,sk);
if ((s->verify_mode != SSL_VERIFY_NONE) && (!i))
{
SSLerr(SSL_F_SSL2_SET_CERTIFICATE,SSL_R_CERTIFICATE_VERIFY_FAILED);
goto err;
}
sc=ssl_sess_cert_new();
if (sc == NULL)
{
ret= -1;
goto err;
}
if (s->session->sess_cert) ssl_sess_cert_free(s->session->sess_cert);
s->session->sess_cert=sc;
sc->peer_pkeys[SSL_PKEY_RSA_ENC].x509=x509;
sc->peer_key= &(sc->peer_pkeys[SSL_PKEY_RSA_ENC]);
pkey=X509_get_pubkey(x509);
x509=NULL;
if (pkey == NULL)
{
SSLerr(SSL_F_SSL2_SET_CERTIFICATE,SSL_R_UNABLE_TO_EXTRACT_PUBLIC_KEY);
goto err;
}
if (pkey->type != EVP_PKEY_RSA)
{
SSLerr(SSL_F_SSL2_SET_CERTIFICATE,SSL_R_PUBLIC_KEY_NOT_RSA);
goto err;
}
if (!ssl_set_peer_cert_type(sc,SSL2_CT_X509_CERTIFICATE))
goto err;
ret=1;
err:
sk_X509_free(sk);
X509_free(x509);
EVP_PKEY_free(pkey);
return(ret);
} | ['int ssl2_set_certificate(SSL *s, int type, int len, unsigned char *data)\n\t{\n\tSTACK_OF(X509) *sk=NULL;\n\tEVP_PKEY *pkey=NULL;\n\tSESS_CERT *sc=NULL;\n\tint i;\n\tX509 *x509=NULL;\n\tint ret=0;\n\tx509=d2i_X509(NULL,&data,(long)len);\n\tif (x509 == NULL)\n\t\t{\n\t\tSSLerr(SSL_F_SSL2_SET_CERTIFICATE,ERR_R_X509_LIB);\n\t\tgoto err;\n\t\t}\n\tif ((sk=sk_X509_new_null()) == NULL || !sk_X509_push(sk,x509))\n\t\t{\n\t\tSSLerr(SSL_F_SSL2_SET_CERTIFICATE,ERR_R_MALLOC_FAILURE);\n\t\tgoto err;\n\t\t}\n\ti=ssl_verify_cert_chain(s,sk);\n\tif ((s->verify_mode != SSL_VERIFY_NONE) && (!i))\n\t\t{\n\t\tSSLerr(SSL_F_SSL2_SET_CERTIFICATE,SSL_R_CERTIFICATE_VERIFY_FAILED);\n\t\tgoto err;\n\t\t}\n\tsc=ssl_sess_cert_new();\n\tif (sc == NULL)\n\t\t{\n\t\tret= -1;\n\t\tgoto err;\n\t\t}\n\tif (s->session->sess_cert) ssl_sess_cert_free(s->session->sess_cert);\n\ts->session->sess_cert=sc;\n\tsc->peer_pkeys[SSL_PKEY_RSA_ENC].x509=x509;\n\tsc->peer_key= &(sc->peer_pkeys[SSL_PKEY_RSA_ENC]);\n\tpkey=X509_get_pubkey(x509);\n\tx509=NULL;\n\tif (pkey == NULL)\n\t\t{\n\t\tSSLerr(SSL_F_SSL2_SET_CERTIFICATE,SSL_R_UNABLE_TO_EXTRACT_PUBLIC_KEY);\n\t\tgoto err;\n\t\t}\n\tif (pkey->type != EVP_PKEY_RSA)\n\t\t{\n\t\tSSLerr(SSL_F_SSL2_SET_CERTIFICATE,SSL_R_PUBLIC_KEY_NOT_RSA);\n\t\tgoto err;\n\t\t}\n\tif (!ssl_set_peer_cert_type(sc,SSL2_CT_X509_CERTIFICATE))\n\t\tgoto err;\n\tret=1;\nerr:\n\tsk_X509_free(sk);\n\tX509_free(x509);\n\tEVP_PKEY_free(pkey);\n\treturn(ret);\n\t}', 'IMPLEMENT_STACK_OF(X509)', '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 sk_free(STACK *st)\n\t{\n\tif (st == NULL) return;\n\tif (st->data != NULL) Free(st->data);\n\tFree(st);\n\t}', 'void X509_free(X509 *a)\n\t{\n\tint i;\n\tif (a == NULL) return;\n\ti=CRYPTO_add(&a->references,-1,CRYPTO_LOCK_X509);\n#ifdef REF_PRINT\n\tREF_PRINT("X509",a);\n#endif\n\tif (i > 0) return;\n#ifdef REF_CHECK\n\tif (i < 0)\n\t\t{\n\t\tfprintf(stderr,"X509_free, bad reference count\\n");\n\t\tabort();\n\t\t}\n#endif\n\tCRYPTO_free_ex_data(x509_meth,a,&a->ex_data);\n\tX509_CINF_free(a->cert_info);\n\tX509_ALGOR_free(a->sig_alg);\n\tM_ASN1_BIT_STRING_free(a->signature);\n\tX509_CERT_AUX_free(a->aux);\n\tif (a->name != NULL) Free(a->name);\n\tFree(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;\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}'] |
26,973 | 0 | https://github.com/openssl/openssl/blob/61f5b6f33807306d09bccbc2dcad474d1d04ca40/crypto/bn/bn_lib.c/#L758 | int bn_cmp_words(BN_ULONG *a, BN_ULONG *b, int n)
{
int i;
BN_ULONG aa,bb;
aa=a[n-1];
bb=b[n-1];
if (aa != bb) return((aa > bb)?1:-1);
for (i=n-2; i>=0; i--)
{
aa=a[i];
bb=b[i];
if (aa != bb) return((aa > bb)?1:-1);
}
return(0);
} | ['static int ssl3_get_client_key_exchange(SSL *s)\n\t{\n\tint i,al,ok;\n\tlong n;\n\tunsigned long l;\n\tunsigned char *p;\n\tRSA *rsa=NULL;\n\tEVP_PKEY *pkey=NULL;\n#ifndef NO_DH\n\tBIGNUM *pub=NULL;\n\tDH *dh_srvr;\n#endif\n\tn=ssl3_get_message(s,\n\t\tSSL3_ST_SR_KEY_EXCH_A,\n\t\tSSL3_ST_SR_KEY_EXCH_B,\n\t\tSSL3_MT_CLIENT_KEY_EXCHANGE,\n\t\t400,\n\t\t&ok);\n\tif (!ok) return((int)n);\n\tp=(unsigned char *)s->init_buf->data;\n\tl=s->s3->tmp.new_cipher->algorithms;\n#ifndef NO_RSA\n\tif (l & SSL_kRSA)\n\t\t{\n\t\tif (s->s3->tmp.use_rsa_tmp)\n\t\t\t{\n\t\t\tif ((s->session->cert != NULL) &&\n\t\t\t\t(s->session->cert->rsa_tmp != NULL))\n\t\t\t\trsa=s->session->cert->rsa_tmp;\n\t\t\telse if ((s->ctx->default_cert != NULL) &&\n\t\t\t\t(s->ctx->default_cert->rsa_tmp != NULL))\n\t\t\t\trsa=s->ctx->default_cert->rsa_tmp;\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_GET_CLIENT_KEY_EXCHANGE,SSL_R_MISSING_TMP_RSA_PKEY);\n\t\t\t\tgoto f_err;\n\t\t\t\t}\n\t\t\t}\n\t\telse\n\t\t\t{\n\t\t\tpkey=s->cert->pkeys[SSL_PKEY_RSA_ENC].privatekey;\n\t\t\tif (\t(pkey == NULL) ||\n\t\t\t\t(pkey->type != EVP_PKEY_RSA) ||\n\t\t\t\t(pkey->pkey.rsa == NULL))\n\t\t\t\t{\n\t\t\t\tal=SSL_AD_HANDSHAKE_FAILURE;\n\t\t\t\tSSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE,SSL_R_MISSING_RSA_CERTIFICATE);\n\t\t\t\tgoto f_err;\n\t\t\t\t}\n\t\t\trsa=pkey->pkey.rsa;\n\t\t\t}\n\t\tif (s->version > SSL3_VERSION)\n\t\t\t{\n\t\t\tn2s(p,i);\n\t\t\tif (n != i+2)\n\t\t\t\t{\n\t\t\t\tif (!(s->options & SSL_OP_TLS_D5_BUG))\n\t\t\t\t\t{\n\t\t\t\t\tSSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE,SSL_R_TLS_RSA_ENCRYPTED_VALUE_LENGTH_IS_WRONG);\n\t\t\t\t\tgoto err;\n\t\t\t\t\t}\n\t\t\t\telse\n\t\t\t\t\tp-=2;\n\t\t\t\t}\n\t\t\telse\n\t\t\t\tn=i;\n\t\t\t}\n\t\ti=RSA_private_decrypt((int)n,p,p,rsa,RSA_PKCS1_PADDING);\n#if 1\n\t\tif ((i != SSL_MAX_MASTER_KEY_LENGTH) ||\n\t\t\t((p[0] != (s->client_version>>8)) ||\n\t\t\t (p[1] != (s->client_version & 0xff))))\n\t\t\t{\n\t\t\tint bad=1;\n\t\t\tif ((i == SSL_MAX_MASTER_KEY_LENGTH) &&\n\t\t\t\t(p[0] == (s->version>>8)) &&\n\t\t\t\t(p[1] == 0))\n\t\t\t\t{\n\t\t\t\tif (s->options & SSL_OP_TLS_ROLLBACK_BUG)\n\t\t\t\t\tbad=0;\n\t\t\t\t}\n\t\t\tif (bad)\n\t\t\t\t{\n\t\t\t\tp[0]=(s->version>>8);\n\t\t\t\tp[1]=(s->version & 0xff);\n\t\t\t\tRAND_bytes(&(p[2]),SSL_MAX_MASTER_KEY_LENGTH-2);\n\t\t\t\ti=SSL_MAX_MASTER_KEY_LENGTH;\n\t\t\t\t}\n\t\t\t}\n#else\n\t\tif (i != SSL_MAX_MASTER_KEY_LENGTH)\n\t\t\t{\n\t\t\tal=SSL_AD_DECODE_ERROR;\n\t\t\tSSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE,SSL_R_BAD_RSA_DECRYPT);\n\t\t\tgoto f_err;\n\t\t\t}\n\t\tif ((p[0] != (s->version>>8)) || (p[1] != (s->version & 0xff)))\n\t\t\t{\n\t\t\tal=SSL_AD_DECODE_ERROR;\n\t\t\tSSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE,SSL_R_BAD_PROTOCOL_VERSION_NUMBER);\n\t\t\tgoto f_err;\n\t\t\t}\n#endif\n\t\ts->session->master_key_length=\n\t\t\ts->method->ssl3_enc->generate_master_secret(s,\n\t\t\t\ts->session->master_key,\n\t\t\t\tp,i);\n\t\tmemset(p,0,i);\n\t\t}\n\telse\n#endif\n#ifndef NO_DH\n\t\tif (l & (SSL_kEDH|SSL_kDHr|SSL_kDHd))\n\t\t{\n\t\tn2s(p,i);\n\t\tif (n != i+2)\n\t\t\t{\n\t\t\tif (!(s->options & SSL_OP_SSLEAY_080_CLIENT_DH_BUG))\n\t\t\t\t{\n\t\t\t\tSSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE,SSL_R_DH_PUBLIC_VALUE_LENGTH_IS_WRONG);\n\t\t\t\tgoto err;\n\t\t\t\t}\n\t\t\telse\n\t\t\t\t{\n\t\t\t\tp-=2;\n\t\t\t\ti=(int)n;\n\t\t\t\t}\n\t\t\t}\n\t\tif (n == 0L)\n\t\t\t{\n\t\t\tal=SSL_AD_HANDSHAKE_FAILURE;\n\t\t\tSSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE,SSL_R_UNABLE_TO_DECODE_DH_CERTS);\n\t\t\tgoto f_err;\n\t\t\t}\n\t\telse\n\t\t\t{\n\t\t\tif (s->s3->tmp.dh == NULL)\n\t\t\t\t{\n\t\t\t\tal=SSL_AD_HANDSHAKE_FAILURE;\n\t\t\t\tSSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE,SSL_R_MISSING_TMP_DH_KEY);\n\t\t\t\tgoto f_err;\n\t\t\t\t}\n\t\t\telse\n\t\t\t\tdh_srvr=s->s3->tmp.dh;\n\t\t\t}\n\t\tpub=BN_bin2bn(p,i,NULL);\n\t\tif (pub == NULL)\n\t\t\t{\n\t\t\tSSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE,SSL_R_BN_LIB);\n\t\t\tgoto err;\n\t\t\t}\n\t\ti=DH_compute_key(p,pub,dh_srvr);\n\t\tif (i <= 0)\n\t\t\t{\n\t\t\tSSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE,ERR_R_DH_LIB);\n\t\t\tgoto err;\n\t\t\t}\n\t\tDH_free(s->s3->tmp.dh);\n\t\ts->s3->tmp.dh=NULL;\n\t\tBN_clear_free(pub);\n\t\tpub=NULL;\n\t\ts->session->master_key_length=\n\t\t\ts->method->ssl3_enc->generate_master_secret(s,\n\t\t\t\ts->session->master_key,p,i);\n\t\t}\n\telse\n#endif\n\t\t{\n\t\tal=SSL_AD_HANDSHAKE_FAILURE;\n\t\tSSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE,SSL_R_UNKNOWN_CIPHER_TYPE);\n\t\tgoto f_err;\n\t\t}\n\treturn(1);\nf_err:\n\tssl3_send_alert(s,SSL3_AL_FATAL,al);\n#if !defined(NO_DH) || !defined(NO_RSA)\nerr:\n#endif\n\treturn(-1);\n\t}', 'BIGNUM *BN_bin2bn(const unsigned char *s, int len, BIGNUM *ret)\n\t{\n\tunsigned int i,m;\n\tunsigned int n;\n\tBN_ULONG l;\n\tif (ret == NULL) ret=BN_new();\n\tif (ret == NULL) return(NULL);\n\tl=0;\n\tn=len;\n\tif (n == 0)\n\t\t{\n\t\tret->top=0;\n\t\treturn(ret);\n\t\t}\n\tif (bn_expand(ret,(int)(n+2)*8) == NULL)\n\t\treturn(NULL);\n\ti=((n-1)/BN_BYTES)+1;\n\tm=((n-1)%(BN_BYTES));\n\tret->top=i;\n\twhile (n-- > 0)\n\t\t{\n\t\tl=(l<<8L)| *(s++);\n\t\tif (m-- == 0)\n\t\t\t{\n\t\t\tret->d[--i]=l;\n\t\t\tl=0;\n\t\t\tm=BN_BYTES-1;\n\t\t\t}\n\t\t}\n\tbn_fix_top(ret);\n\treturn(ret);\n\t}', 'int DH_compute_key(unsigned char *key, BIGNUM *pub_key, DH *dh)\n\t{\n\tBN_CTX ctx;\n\tBN_MONT_CTX *mont;\n\tBIGNUM *tmp;\n\tint ret= -1;\n\tBN_CTX_init(&ctx);\n\ttmp= &(ctx.bn[ctx.tos++]);\n\tif (dh->priv_key == NULL)\n\t\t{\n\t\tDHerr(DH_F_DH_COMPUTE_KEY,DH_R_NO_PRIVATE_VALUE);\n\t\tgoto err;\n\t\t}\n\tif ((dh->method_mont_p == NULL) && (dh->flags & DH_FLAG_CACHE_MONT_P))\n\t\t{\n\t\tif ((dh->method_mont_p=(char *)BN_MONT_CTX_new()) != NULL)\n\t\t\tif (!BN_MONT_CTX_set((BN_MONT_CTX *)dh->method_mont_p,\n\t\t\t\tdh->p,&ctx)) goto err;\n\t\t}\n\tmont=(BN_MONT_CTX *)dh->method_mont_p;\n\tif (!BN_mod_exp_mont(tmp,pub_key,dh->priv_key,dh->p,&ctx,mont))\n\t\t{\n\t\tDHerr(DH_F_DH_COMPUTE_KEY,ERR_R_BN_LIB);\n\t\tgoto err;\n\t\t}\n\tret=BN_bn2bin(tmp,key);\nerr:\n\tBN_CTX_free(&ctx);\n\treturn(ret);\n\t}', 'int BN_mod_exp_mont(BIGNUM *rr, BIGNUM *a, BIGNUM *p, BIGNUM *m, BN_CTX *ctx,\n\t BN_MONT_CTX *in_mont)\n\t{\n\tint i,j,bits,ret=0,wstart,wend,window,wvalue;\n\tint start=1,ts=0;\n\tBIGNUM *d,*aa,*r;\n\tBIGNUM val[TABLE_SIZE];\n\tBN_MONT_CTX *mont=NULL;\n\tbn_check_top(a);\n\tbn_check_top(p);\n\tbn_check_top(m);\n\tif (!(m->d[0] & 1))\n\t\t{\n\t\tBNerr(BN_F_BN_MOD_EXP_MONT,BN_R_CALLED_WITH_EVEN_MODULUS);\n\t\treturn(0);\n\t\t}\n\td= &(ctx->bn[ctx->tos++]);\n\tr= &(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#if 1\n\tif (in_mont != NULL)\n\t\tmont=in_mont;\n\telse\n#endif\n\t\t{\n\t\tif ((mont=BN_MONT_CTX_new()) == NULL) goto err;\n\t\tif (!BN_MONT_CTX_set(mont,m,ctx)) goto err;\n\t\t}\n\tBN_init(&val[0]);\n\tts=1;\n\tif (BN_ucmp(a,m) >= 0)\n\t\t{\n\t\tBN_mod(&(val[0]),a,m,ctx);\n\t\taa= &(val[0]);\n\t\t}\n\telse\n\t\taa=a;\n\tif (!BN_to_montgomery(&(val[0]),aa,mont,ctx)) goto err;\n\tif (!BN_mod_mul_montgomery(d,&(val[0]),&(val[0]),mont,ctx)) goto err;\n\tif (bits <= 20)\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_montgomery(&(val[i]),&(val[i-1]),d,mont,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 if (!BN_to_montgomery(r,BN_value_one(),mont,ctx)) 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\t{\n\t\t\t\tif (!BN_mod_mul_montgomery(r,r,r,mont,ctx))\n\t\t\t\tgoto err;\n\t\t\t\t}\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_montgomery(r,r,r,mont,ctx))\n\t\t\t\t\tgoto err;\n\t\t\t\t}\n\t\tif (!BN_mod_mul_montgomery(r,r,&(val[wvalue>>1]),mont,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\tBN_from_montgomery(rr,r,mont,ctx);\n\tret=1;\nerr:\n\tif ((in_mont == NULL) && (mont != NULL)) BN_MONT_CTX_free(mont);\n\tctx->tos-=2;\n\tfor (i=0; i<ts; i++)\n\t\tBN_clear_free(&(val[i]));\n\treturn(ret);\n\t}', 'int BN_mod_mul_montgomery(BIGNUM *r, BIGNUM *a, BIGNUM *b, BN_MONT_CTX *mont,\n\t BN_CTX *ctx)\n\t{\n\tBIGNUM *tmp,*tmp2;\n tmp= &(ctx->bn[ctx->tos]);\n tmp2= &(ctx->bn[ctx->tos]);\n\tctx->tos+=2;\n\tbn_check_top(tmp);\n\tbn_check_top(tmp2);\n\tif (a == b)\n\t\t{\n#if 0\n\t\tbn_wexpand(tmp,a->top*2);\n\t\tbn_wexpand(tmp2,a->top*4);\n\t\tbn_sqr_recursive(tmp->d,a->d,a->top,tmp2->d);\n\t\ttmp->top=a->top*2;\n\t\tif (tmp->d[tmp->top-1] == 0)\n\t\t\ttmp->top--;\n#else\n\t\tif (!BN_sqr(tmp,a,ctx)) goto err;\n#endif\n\t\t}\n\telse\n\t\t{\n\t\tif (!BN_mul(tmp,a,b,ctx)) goto err;\n\t\t}\n\tif (!BN_from_montgomery(r,tmp,mont,ctx)) goto err;\n\tctx->tos-=2;\n\treturn(1);\nerr:\n\treturn(0);\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_part_recursive(BN_ULONG *r, BN_ULONG *a, BN_ULONG *b, int tn,\n\t int n, BN_ULONG *t)\n\t{\n\tint i,j,n2=n*2;\n\tunsigned int c1;\n\tBN_ULONG ln,lo,*p;\n#ifdef BN_COUNT\nprintf(" bn_mul_part_recursive %d * %d\\n",tn+n,tn+n);\n#endif\n\tif (n < 8)\n\t\t{\n\t\ti=tn+n;\n\t\tbn_mul_normal(r,a,i,b,i);\n\t\treturn;\n\t\t}\n\tbn_sub_words(t, a, &(a[n]),n);\n\tbn_sub_words(&(t[n]),b, &(b[n]),n);\n if (n == 8)\n\t\t{\n\t\tbn_mul_comba8(&(t[n2]),t,&(t[n]));\n\t\tbn_mul_comba8(r,a,b);\n\t\tbn_mul_normal(&(r[n2]),&(a[n]),tn,&(b[n]),tn);\n\t\tmemset(&(r[n2+tn*2]),0,sizeof(BN_ULONG)*(n2-tn*2));\n\t\t}\n\telse\n\t\t{\n\t\tp= &(t[n2*2]);\n\t\tbn_mul_recursive(&(t[n2]),t,&(t[n]),n,p);\n\t\tbn_mul_recursive(r,a,b,n,p);\n\t\ti=n/2;\n\t\tj=tn-i;\n\t\tif (j == 0)\n\t\t\t{\n\t\t\tbn_mul_recursive(&(r[n2]),&(a[n]),&(b[n]),i,p);\n\t\t\tmemset(&(r[n2+i*2]),0,sizeof(BN_ULONG)*(n2-i*2));\n\t\t\t}\n\t\telse if (j > 0)\n\t\t\t\t{\n\t\t\t\tbn_mul_part_recursive(&(r[n2]),&(a[n]),&(b[n]),\n\t\t\t\t\tj,i,p);\n\t\t\t\tmemset(&(r[n2+tn*2]),0,\n\t\t\t\t\tsizeof(BN_ULONG)*(n2-tn*2));\n\t\t\t\t}\n\t\telse\n\t\t\t{\n\t\t\tmemset(&(r[n2]),0,sizeof(BN_ULONG)*n2);\n\t\t\tif (tn < BN_MUL_RECURSIVE_SIZE_NORMAL)\n\t\t\t\t{\n\t\t\t\tbn_mul_normal(&(r[n2]),&(a[n]),tn,&(b[n]),tn);\n\t\t\t\t}\n\t\t\telse\n\t\t\t\t{\n\t\t\t\tfor (;;)\n\t\t\t\t\t{\n\t\t\t\t\ti/=2;\n\t\t\t\t\tif (i < tn)\n\t\t\t\t\t\t{\n\t\t\t\t\t\tbn_mul_part_recursive(&(r[n2]),\n\t\t\t\t\t\t\t&(a[n]),&(b[n]),\n\t\t\t\t\t\t\ttn-i,i,p);\n\t\t\t\t\t\tbreak;\n\t\t\t\t\t\t}\n\t\t\t\t\telse if (i == tn)\n\t\t\t\t\t\t{\n\t\t\t\t\t\tbn_mul_recursive(&(r[n2]),\n\t\t\t\t\t\t\t&(a[n]),&(b[n]),\n\t\t\t\t\t\t\ti,p);\n\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\tc1=(int)(bn_add_words(t,r,&(r[n2]),n2));\n\tc1-=(int)(bn_sub_words(&(t[n2]),t,&(t[n2]),n2));\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 < 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_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}', 'int bn_cmp_words(BN_ULONG *a, BN_ULONG *b, int n)\n\t{\n\tint i;\n\tBN_ULONG aa,bb;\n\taa=a[n-1];\n\tbb=b[n-1];\n\tif (aa != bb) return((aa > bb)?1:-1);\n\tfor (i=n-2; i>=0; i--)\n\t\t{\n\t\taa=a[i];\n\t\tbb=b[i];\n\t\tif (aa != bb) return((aa > bb)?1:-1);\n\t\t}\n\treturn(0);\n\t}'] |
26,974 | 0 | https://github.com/libav/libav/blob/fa0912fe50e59df72b7bf81f8838d2c6d9780343/libavcodec/aaccoder.c/#L162 | static float quantize_band_cost(struct AACEncContext *s, const float *in,
const float *scaled, int size, int scale_idx,
int cb, const float lambda, const float uplim,
int *bits)
{
const float IQ = ff_aac_pow2sf_tab[200 + scale_idx - SCALE_ONE_POS + SCALE_DIV_512];
const float Q = ff_aac_pow2sf_tab[200 - scale_idx + SCALE_ONE_POS - SCALE_DIV_512];
const float CLIPPED_ESCAPE = 165140.0f*IQ;
int i, j, k;
float cost = 0;
const int dim = cb < FIRST_PAIR_BT ? 4 : 2;
int resbits = 0;
#ifndef USE_REALLY_FULL_SEARCH
const float Q34 = sqrtf(Q * sqrtf(Q));
const int range = aac_cb_range[cb];
const int maxval = aac_cb_maxval[cb];
int offs[4];
#endif
if (!cb) {
for (i = 0; i < size; i++)
cost += in[i]*in[i]*lambda;
if (bits)
*bits = 0;
return cost;
}
#ifndef USE_REALLY_FULL_SEARCH
offs[0] = 1;
for (i = 1; i < dim; i++)
offs[i] = offs[i-1]*range;
quantize_bands(s->qcoefs, in, scaled, size, Q34, !IS_CODEBOOK_UNSIGNED(cb), maxval);
#endif
for (i = 0; i < size; i += dim) {
float mincost;
int minidx = 0;
int minbits = 0;
const float *vec;
#ifndef USE_REALLY_FULL_SEARCH
int (*quants)[2] = &s->qcoefs[i];
mincost = 0.0f;
for (j = 0; j < dim; j++)
mincost += in[i+j]*in[i+j]*lambda;
minidx = IS_CODEBOOK_UNSIGNED(cb) ? 0 : 40;
minbits = ff_aac_spectral_bits[cb-1][minidx];
mincost += minbits;
for (j = 0; j < (1<<dim); j++) {
float rd = 0.0f;
int curbits;
int curidx = IS_CODEBOOK_UNSIGNED(cb) ? 0 : 40;
int same = 0;
for (k = 0; k < dim; k++) {
if ((j & (1 << k)) && quants[k][0] == quants[k][1]) {
same = 1;
break;
}
}
if (same)
continue;
for (k = 0; k < dim; k++)
curidx += quants[k][!!(j & (1 << k))] * offs[dim - 1 - k];
curbits = ff_aac_spectral_bits[cb-1][curidx];
vec = &ff_aac_codebook_vectors[cb-1][curidx*dim];
#else
mincost = INFINITY;
vec = ff_aac_codebook_vectors[cb-1];
for (j = 0; j < ff_aac_spectral_sizes[cb-1]; j++, vec += dim) {
float rd = 0.0f;
int curbits = ff_aac_spectral_bits[cb-1][j];
#endif
if (IS_CODEBOOK_UNSIGNED(cb)) {
for (k = 0; k < dim; k++) {
float t = fabsf(in[i+k]);
float di;
if (vec[k] == 64.0f && t < 39.0f*IQ) {
rd = INFINITY;
break;
}
if (vec[k] == 64.0f) {
if (t >= CLIPPED_ESCAPE) {
di = t - CLIPPED_ESCAPE;
curbits += 21;
} else {
int c = av_clip(quant(t, Q), 0, 8191);
di = t - c*cbrt(c)*IQ;
curbits += av_log2(c)*2 - 4 + 1;
}
} else {
di = t - vec[k]*IQ;
}
if (vec[k] != 0.0f)
curbits++;
rd += di*di*lambda;
}
} else {
for (k = 0; k < dim; k++) {
float di = in[i+k] - vec[k]*IQ;
rd += di*di*lambda;
}
}
rd += curbits;
if (rd < mincost) {
mincost = rd;
minidx = j;
minbits = curbits;
}
}
cost += mincost;
resbits += minbits;
if (cost >= uplim)
return uplim;
}
if (bits)
*bits = resbits;
return cost;
} | ['static float quantize_band_cost(struct AACEncContext *s, const float *in,\n const float *scaled, int size, int scale_idx,\n int cb, const float lambda, const float uplim,\n int *bits)\n{\n const float IQ = ff_aac_pow2sf_tab[200 + scale_idx - SCALE_ONE_POS + SCALE_DIV_512];\n const float Q = ff_aac_pow2sf_tab[200 - scale_idx + SCALE_ONE_POS - SCALE_DIV_512];\n const float CLIPPED_ESCAPE = 165140.0f*IQ;\n int i, j, k;\n float cost = 0;\n const int dim = cb < FIRST_PAIR_BT ? 4 : 2;\n int resbits = 0;\n#ifndef USE_REALLY_FULL_SEARCH\n const float Q34 = sqrtf(Q * sqrtf(Q));\n const int range = aac_cb_range[cb];\n const int maxval = aac_cb_maxval[cb];\n int offs[4];\n#endif\n if (!cb) {\n for (i = 0; i < size; i++)\n cost += in[i]*in[i]*lambda;\n if (bits)\n *bits = 0;\n return cost;\n }\n#ifndef USE_REALLY_FULL_SEARCH\n offs[0] = 1;\n for (i = 1; i < dim; i++)\n offs[i] = offs[i-1]*range;\n quantize_bands(s->qcoefs, in, scaled, size, Q34, !IS_CODEBOOK_UNSIGNED(cb), maxval);\n#endif\n for (i = 0; i < size; i += dim) {\n float mincost;\n int minidx = 0;\n int minbits = 0;\n const float *vec;\n#ifndef USE_REALLY_FULL_SEARCH\n int (*quants)[2] = &s->qcoefs[i];\n mincost = 0.0f;\n for (j = 0; j < dim; j++)\n mincost += in[i+j]*in[i+j]*lambda;\n minidx = IS_CODEBOOK_UNSIGNED(cb) ? 0 : 40;\n minbits = ff_aac_spectral_bits[cb-1][minidx];\n mincost += minbits;\n for (j = 0; j < (1<<dim); j++) {\n float rd = 0.0f;\n int curbits;\n int curidx = IS_CODEBOOK_UNSIGNED(cb) ? 0 : 40;\n int same = 0;\n for (k = 0; k < dim; k++) {\n if ((j & (1 << k)) && quants[k][0] == quants[k][1]) {\n same = 1;\n break;\n }\n }\n if (same)\n continue;\n for (k = 0; k < dim; k++)\n curidx += quants[k][!!(j & (1 << k))] * offs[dim - 1 - k];\n curbits = ff_aac_spectral_bits[cb-1][curidx];\n vec = &ff_aac_codebook_vectors[cb-1][curidx*dim];\n#else\n mincost = INFINITY;\n vec = ff_aac_codebook_vectors[cb-1];\n for (j = 0; j < ff_aac_spectral_sizes[cb-1]; j++, vec += dim) {\n float rd = 0.0f;\n int curbits = ff_aac_spectral_bits[cb-1][j];\n#endif\n if (IS_CODEBOOK_UNSIGNED(cb)) {\n for (k = 0; k < dim; k++) {\n float t = fabsf(in[i+k]);\n float di;\n if (vec[k] == 64.0f && t < 39.0f*IQ) {\n rd = INFINITY;\n break;\n }\n if (vec[k] == 64.0f) {\n if (t >= CLIPPED_ESCAPE) {\n di = t - CLIPPED_ESCAPE;\n curbits += 21;\n } else {\n int c = av_clip(quant(t, Q), 0, 8191);\n di = t - c*cbrt(c)*IQ;\n curbits += av_log2(c)*2 - 4 + 1;\n }\n } else {\n di = t - vec[k]*IQ;\n }\n if (vec[k] != 0.0f)\n curbits++;\n rd += di*di*lambda;\n }\n } else {\n for (k = 0; k < dim; k++) {\n float di = in[i+k] - vec[k]*IQ;\n rd += di*di*lambda;\n }\n }\n rd += curbits;\n if (rd < mincost) {\n mincost = rd;\n minidx = j;\n minbits = curbits;\n }\n }\n cost += mincost;\n resbits += minbits;\n if (cost >= uplim)\n return uplim;\n }\n if (bits)\n *bits = resbits;\n return cost;\n}'] |
26,975 | 0 | https://github.com/openssl/openssl/blob/2864df8f9d3264e19b49a246e272fb513f4c1be3/crypto/bn/bn_ctx.c/#L342 | static void BN_POOL_release(BN_POOL *p, unsigned int num)
{
unsigned int offset = (p->used - 1) % BN_CTX_POOL_SIZE;
p->used -= num;
while (num--) {
bn_check_top(p->current->vals + offset);
if (offset == 0) {
offset = BN_CTX_POOL_SIZE - 1;
p->current = p->current->prev;
} else
offset--;
}
} | ['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}', '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_div_fixed_top(BIGNUM *dv, BIGNUM *rm, const BIGNUM *num,\n const BIGNUM *divisor, BN_CTX *ctx)\n{\n int norm_shift, i, j, loop;\n BIGNUM *tmp, *snum, *sdiv, *res;\n BN_ULONG *resp, *wnum, *wnumtop;\n BN_ULONG d0, d1;\n int num_n, div_n;\n assert(divisor->top > 0 && divisor->d[divisor->top - 1] != 0);\n bn_check_top(num);\n bn_check_top(divisor);\n bn_check_top(dv);\n bn_check_top(rm);\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 if (!BN_copy(sdiv, divisor))\n goto err;\n norm_shift = bn_left_align(sdiv);\n sdiv->neg = 0;\n if (!(bn_lshift_fixed_top(snum, num, norm_shift)))\n goto err;\n div_n = sdiv->top;\n num_n = snum->top;\n if (num_n <= div_n) {\n if (bn_wexpand(snum, div_n + 1) == NULL)\n goto err;\n memset(&(snum->d[num_n]), 0, (div_n - num_n + 1) * sizeof(BN_ULONG));\n snum->top = num_n = div_n + 1;\n }\n loop = num_n - div_n;\n wnum = &(snum->d[loop]);\n wnumtop = &(snum->d[num_n - 1]);\n d0 = sdiv->d[div_n - 1];\n d1 = (div_n == 1) ? 0 : sdiv->d[div_n - 2];\n if (!bn_wexpand(res, loop))\n goto err;\n res->neg = (num->neg ^ divisor->neg);\n res->top = loop;\n res->flags |= BN_FLG_FIXED_TOP;\n resp = &(res->d[loop]);\n if (!bn_wexpand(tmp, (div_n + 1)))\n goto err;\n for (i = 0; i < loop; i++, wnumtop--) {\n BN_ULONG q, l0;\n# if defined(BN_DIV3W)\n q = bn_div_3_words(wnumtop, d1, d0);\n# else\n BN_ULONG n0, n1, rem = 0;\n n0 = wnumtop[0];\n n1 = wnumtop[-1];\n if (n0 == d0)\n q = BN_MASK2;\n else {\n BN_ULONG n2 = (wnumtop == wnum) ? 0 : wnumtop[-2];\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) | n2))\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 <= n2)))\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--;\n l0 = bn_sub_words(wnum, wnum, 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, wnum, tmp->d, div_n);\n (*wnumtop) += l0;\n assert((*wnumtop) == 0);\n *--resp = q;\n }\n snum->neg = num->neg;\n snum->top = div_n;\n snum->flags |= BN_FLG_FIXED_TOP;\n if (rm != NULL)\n bn_rshift_fixed_top(rm, snum, norm_shift);\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_CTX_get(BN_CTX *ctx)\n{\n BIGNUM *ret;\n CTXDBG("ENTER 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("LEAVE BN_CTX_get()", ctx);\n return ret;\n}', 'void BN_CTX_end(BN_CTX *ctx)\n{\n if (ctx == NULL)\n return;\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 void BN_POOL_release(BN_POOL *p, unsigned int num)\n{\n unsigned int offset = (p->used - 1) % BN_CTX_POOL_SIZE;\n p->used -= num;\n while (num--) {\n bn_check_top(p->current->vals + offset);\n if (offset == 0) {\n offset = BN_CTX_POOL_SIZE - 1;\n p->current = p->current->prev;\n } else\n offset--;\n }\n}'] |
26,976 | 0 | https://github.com/libav/libav/blob/3ec394ea823c2a6e65a6abbdb2041ce1c66964f8/libavcodec/h264pred.c/#L149 | static void pred4x4_down_left_c(uint8_t *src, uint8_t *topright, int stride){
LOAD_TOP_EDGE
LOAD_TOP_RIGHT_EDGE
src[0+0*stride]=(t0 + t2 + 2*t1 + 2)>>2;
src[1+0*stride]=
src[0+1*stride]=(t1 + t3 + 2*t2 + 2)>>2;
src[2+0*stride]=
src[1+1*stride]=
src[0+2*stride]=(t2 + t4 + 2*t3 + 2)>>2;
src[3+0*stride]=
src[2+1*stride]=
src[1+2*stride]=
src[0+3*stride]=(t3 + t5 + 2*t4 + 2)>>2;
src[3+1*stride]=
src[2+2*stride]=
src[1+3*stride]=(t4 + t6 + 2*t5 + 2)>>2;
src[3+2*stride]=
src[2+3*stride]=(t5 + t7 + 2*t6 + 2)>>2;
src[3+3*stride]=(t6 + 3*t7 + 2)>>2;
} | ['static void pred4x4_down_left_c(uint8_t *src, uint8_t *topright, int stride){\n LOAD_TOP_EDGE\n LOAD_TOP_RIGHT_EDGE\n src[0+0*stride]=(t0 + t2 + 2*t1 + 2)>>2;\n src[1+0*stride]=\n src[0+1*stride]=(t1 + t3 + 2*t2 + 2)>>2;\n src[2+0*stride]=\n src[1+1*stride]=\n src[0+2*stride]=(t2 + t4 + 2*t3 + 2)>>2;\n src[3+0*stride]=\n src[2+1*stride]=\n src[1+2*stride]=\n src[0+3*stride]=(t3 + t5 + 2*t4 + 2)>>2;\n src[3+1*stride]=\n src[2+2*stride]=\n src[1+3*stride]=(t4 + t6 + 2*t5 + 2)>>2;\n src[3+2*stride]=\n src[2+3*stride]=(t5 + t7 + 2*t6 + 2)>>2;\n src[3+3*stride]=(t6 + 3*t7 + 2)>>2;\n}'] |
26,977 | 0 | https://github.com/openssl/openssl/blob/05ec6a25f80ac8edfb7d7cb764d2dd68156a6965/crypto/bn/bn_lib.c/#L289 | 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_zalloc(words * sizeof(*a));
else
a = A = OPENSSL_zalloc(words * sizeof(*a));
if (A == NULL) {
BNerr(BN_F_BN_EXPAND_INTERNAL, ERR_R_MALLOC_FAILURE);
return (NULL);
}
#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 DH *get_dh512()\n{\n static unsigned char dh512_p[] = {\n 0xCB, 0xC8, 0xE1, 0x86, 0xD0, 0x1F, 0x94, 0x17, 0xA6, 0x99, 0xF0,\n 0xC6,\n 0x1F, 0x0D, 0xAC, 0xB6, 0x25, 0x3E, 0x06, 0x39, 0xCA, 0x72, 0x04,\n 0xB0,\n 0x6E, 0xDA, 0xC0, 0x61, 0xE6, 0x7A, 0x77, 0x25, 0xE8, 0x3B, 0xB9,\n 0x5F,\n 0x9A, 0xB6, 0xB5, 0xFE, 0x99, 0x0B, 0xA1, 0x93, 0x4E, 0x35, 0x33,\n 0xB8,\n 0xE1, 0xF1, 0x13, 0x4F, 0x59, 0x1A, 0xD2, 0x57, 0xC0, 0x26, 0x21,\n 0x33,\n 0x02, 0xC5, 0xAE, 0x23,\n };\n static unsigned char dh512_g[] = {\n 0x02,\n };\n DH *dh;\n BIGNUM *p, *g;\n if ((dh = DH_new()) == NULL)\n return (NULL);\n p = BN_bin2bn(dh512_p, sizeof(dh512_p), NULL);\n g = BN_bin2bn(dh512_g, sizeof(dh512_g), NULL);\n if ((p == NULL) || (g == NULL) || !DH_set0_pqg(dh, p, NULL, g)) {\n DH_free(dh);\n BN_free(p);\n BN_free(g);\n return (NULL);\n }\n return (dh);\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_zalloc(words * sizeof(*a));\n else\n a = 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#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}'] |
26,978 | 0 | https://github.com/openssl/openssl/blob/47bbaa5b607f592009ed40f5678fde21c10a873c/crypto/bn/bn_lib.c/#L680 | int BN_set_bit(BIGNUM *a, int n)
{
int i, j, k;
if (n < 0)
return 0;
i = n / BN_BITS2;
j = n % BN_BITS2;
if (a->top <= i) {
if (bn_wexpand(a, i + 1) == NULL)
return (0);
for (k = a->top; k < i + 1; k++)
a->d[k] = 0;
a->top = i + 1;
}
a->d[i] |= (((BN_ULONG)1) << j);
bn_check_top(a);
return (1);
} | ['EC_GROUP *d2i_ECPKParameters(EC_GROUP **a, const unsigned char **in, long len)\n{\n EC_GROUP *group = NULL;\n ECPKPARAMETERS *params = NULL;\n if ((params = d2i_ECPKPARAMETERS(NULL, in, len)) == NULL) {\n ECerr(EC_F_D2I_ECPKPARAMETERS, EC_R_D2I_ECPKPARAMETERS_FAILURE);\n ECPKPARAMETERS_free(params);\n return NULL;\n }\n if ((group = ec_asn1_pkparameters2group(params)) == NULL) {\n ECerr(EC_F_D2I_ECPKPARAMETERS, EC_R_PKPARAMETERS2GROUP_FAILURE);\n ECPKPARAMETERS_free(params);\n return NULL;\n }\n if (a) {\n EC_GROUP_clear_free(*a);\n *a = group;\n }\n ECPKPARAMETERS_free(params);\n return (group);\n}', 'EC_GROUP *ec_asn1_pkparameters2group(const ECPKPARAMETERS *params)\n{\n EC_GROUP *ret = NULL;\n int tmp = 0;\n if (params == NULL) {\n ECerr(EC_F_EC_ASN1_PKPARAMETERS2GROUP, EC_R_MISSING_PARAMETERS);\n return NULL;\n }\n if (params->type == 0) {\n tmp = OBJ_obj2nid(params->value.named_curve);\n if ((ret = EC_GROUP_new_by_curve_name(tmp)) == NULL) {\n ECerr(EC_F_EC_ASN1_PKPARAMETERS2GROUP,\n EC_R_EC_GROUP_NEW_BY_NAME_FAILURE);\n return NULL;\n }\n EC_GROUP_set_asn1_flag(ret, OPENSSL_EC_NAMED_CURVE);\n } else if (params->type == 1) {\n ret = ec_asn1_parameters2group(params->value.parameters);\n if (!ret) {\n ECerr(EC_F_EC_ASN1_PKPARAMETERS2GROUP, ERR_R_EC_LIB);\n return NULL;\n }\n EC_GROUP_set_asn1_flag(ret, 0x0);\n } else if (params->type == 2) {\n return NULL;\n } else {\n ECerr(EC_F_EC_ASN1_PKPARAMETERS2GROUP, EC_R_ASN1_ERROR);\n return NULL;\n }\n return ret;\n}', 'static EC_GROUP *ec_asn1_parameters2group(const ECPARAMETERS *params)\n{\n int ok = 0, tmp;\n EC_GROUP *ret = NULL;\n BIGNUM *p = NULL, *a = NULL, *b = NULL;\n EC_POINT *point = NULL;\n long field_bits;\n if (!params->fieldID || !params->fieldID->fieldType ||\n !params->fieldID->p.ptr) {\n ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, EC_R_ASN1_ERROR);\n goto err;\n }\n if (!params->curve || !params->curve->a ||\n !params->curve->a->data || !params->curve->b ||\n !params->curve->b->data) {\n ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, EC_R_ASN1_ERROR);\n goto err;\n }\n a = BN_bin2bn(params->curve->a->data, params->curve->a->length, NULL);\n if (a == NULL) {\n ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, ERR_R_BN_LIB);\n goto err;\n }\n b = BN_bin2bn(params->curve->b->data, params->curve->b->length, NULL);\n if (b == NULL) {\n ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, ERR_R_BN_LIB);\n goto err;\n }\n tmp = OBJ_obj2nid(params->fieldID->fieldType);\n if (tmp == NID_X9_62_characteristic_two_field)\n#ifdef OPENSSL_NO_EC2M\n {\n ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, EC_R_GF2M_NOT_SUPPORTED);\n goto err;\n }\n#else\n {\n X9_62_CHARACTERISTIC_TWO *char_two;\n char_two = params->fieldID->p.char_two;\n field_bits = char_two->m;\n if (field_bits > OPENSSL_ECC_MAX_FIELD_BITS) {\n ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, EC_R_FIELD_TOO_LARGE);\n goto err;\n }\n if ((p = BN_new()) == NULL) {\n ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, ERR_R_MALLOC_FAILURE);\n goto err;\n }\n tmp = OBJ_obj2nid(char_two->type);\n if (tmp == NID_X9_62_tpBasis) {\n long tmp_long;\n if (!char_two->p.tpBasis) {\n ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, EC_R_ASN1_ERROR);\n goto err;\n }\n tmp_long = ASN1_INTEGER_get(char_two->p.tpBasis);\n if (!(char_two->m > tmp_long && tmp_long > 0)) {\n ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP,\n EC_R_INVALID_TRINOMIAL_BASIS);\n goto err;\n }\n if (!BN_set_bit(p, (int)char_two->m))\n goto err;\n if (!BN_set_bit(p, (int)tmp_long))\n goto err;\n if (!BN_set_bit(p, 0))\n goto err;\n } else if (tmp == NID_X9_62_ppBasis) {\n X9_62_PENTANOMIAL *penta;\n penta = char_two->p.ppBasis;\n if (!penta) {\n ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, EC_R_ASN1_ERROR);\n goto err;\n }\n if (!\n (char_two->m > penta->k3 && penta->k3 > penta->k2\n && penta->k2 > penta->k1 && penta->k1 > 0)) {\n ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP,\n EC_R_INVALID_PENTANOMIAL_BASIS);\n goto err;\n }\n if (!BN_set_bit(p, (int)char_two->m))\n goto err;\n if (!BN_set_bit(p, (int)penta->k1))\n goto err;\n if (!BN_set_bit(p, (int)penta->k2))\n goto err;\n if (!BN_set_bit(p, (int)penta->k3))\n goto err;\n if (!BN_set_bit(p, 0))\n goto err;\n } else if (tmp == NID_X9_62_onBasis) {\n ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, EC_R_NOT_IMPLEMENTED);\n goto err;\n } else {\n ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, EC_R_ASN1_ERROR);\n goto err;\n }\n ret = EC_GROUP_new_curve_GF2m(p, a, b, NULL);\n }\n#endif\n else if (tmp == NID_X9_62_prime_field) {\n if (!params->fieldID->p.prime) {\n ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, EC_R_ASN1_ERROR);\n goto err;\n }\n p = ASN1_INTEGER_to_BN(params->fieldID->p.prime, NULL);\n if (p == NULL) {\n ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, ERR_R_ASN1_LIB);\n goto err;\n }\n if (BN_is_negative(p) || BN_is_zero(p)) {\n ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, EC_R_INVALID_FIELD);\n goto err;\n }\n field_bits = BN_num_bits(p);\n if (field_bits > OPENSSL_ECC_MAX_FIELD_BITS) {\n ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, EC_R_FIELD_TOO_LARGE);\n goto err;\n }\n ret = EC_GROUP_new_curve_GFp(p, a, b, NULL);\n } else {\n ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, EC_R_INVALID_FIELD);\n goto err;\n }\n if (ret == NULL) {\n ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, ERR_R_EC_LIB);\n goto err;\n }\n if (params->curve->seed != NULL) {\n OPENSSL_free(ret->seed);\n if ((ret->seed = OPENSSL_malloc(params->curve->seed->length)) == NULL) {\n ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, ERR_R_MALLOC_FAILURE);\n goto err;\n }\n memcpy(ret->seed, params->curve->seed->data,\n params->curve->seed->length);\n ret->seed_len = params->curve->seed->length;\n }\n if (!params->order || !params->base || !params->base->data) {\n ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, EC_R_ASN1_ERROR);\n goto err;\n }\n if ((point = EC_POINT_new(ret)) == NULL)\n goto err;\n EC_GROUP_set_point_conversion_form(ret, (point_conversion_form_t)\n (params->base->data[0] & ~0x01));\n if (!EC_POINT_oct2point(ret, point, params->base->data,\n params->base->length, NULL)) {\n ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, ERR_R_EC_LIB);\n goto err;\n }\n if ((a = ASN1_INTEGER_to_BN(params->order, a)) == NULL) {\n ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, ERR_R_ASN1_LIB);\n goto err;\n }\n if (BN_is_negative(a) || BN_is_zero(a)) {\n ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, EC_R_INVALID_GROUP_ORDER);\n goto err;\n }\n if (BN_num_bits(a) > (int)field_bits + 1) {\n ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, EC_R_INVALID_GROUP_ORDER);\n goto err;\n }\n if (params->cofactor == NULL) {\n BN_free(b);\n b = NULL;\n } else if ((b = ASN1_INTEGER_to_BN(params->cofactor, b)) == NULL) {\n ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, ERR_R_ASN1_LIB);\n goto err;\n }\n if (!EC_GROUP_set_generator(ret, point, a, b)) {\n ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, ERR_R_EC_LIB);\n goto err;\n }\n ok = 1;\n err:\n if (!ok) {\n EC_GROUP_clear_free(ret);\n ret = NULL;\n }\n BN_free(p);\n BN_free(a);\n BN_free(b);\n EC_POINT_free(point);\n return (ret);\n}', 'int BN_set_bit(BIGNUM *a, int n)\n{\n int i, j, k;\n if (n < 0)\n return 0;\n i = n / BN_BITS2;\n j = n % BN_BITS2;\n if (a->top <= i) {\n if (bn_wexpand(a, i + 1) == NULL)\n return (0);\n for (k = a->top; k < i + 1; k++)\n a->d[k] = 0;\n a->top = i + 1;\n }\n a->d[i] |= (((BN_ULONG)1) << j);\n bn_check_top(a);\n return (1);\n}'] |
26,979 | 0 | https://github.com/libav/libav/blob/47d2ddca802f4c1bc4b454c5ac40f06f79b740a0/libavformat/rtsp.c/#L1666 | static int sdp_read_header(AVFormatContext *s, AVFormatParameters *ap)
{
RTSPState *rt = s->priv_data;
RTSPStream *rtsp_st;
int size, i, err;
char *content;
char url[1024];
if (!ff_network_init())
return AVERROR(EIO);
content = av_malloc(SDP_MAX_SIZE);
size = get_buffer(s->pb, content, SDP_MAX_SIZE - 1);
if (size <= 0) {
av_free(content);
return AVERROR_INVALIDDATA;
}
content[size] ='\0';
ff_sdp_parse(s, content);
av_free(content);
for (i = 0; i < rt->nb_rtsp_streams; i++) {
char namebuf[50];
rtsp_st = rt->rtsp_streams[i];
getnameinfo((struct sockaddr*) &rtsp_st->sdp_ip, sizeof(rtsp_st->sdp_ip),
namebuf, sizeof(namebuf), NULL, 0, NI_NUMERICHOST);
ff_url_join(url, sizeof(url), "rtp", NULL,
namebuf, rtsp_st->sdp_port,
"?localport=%d&ttl=%d", rtsp_st->sdp_port,
rtsp_st->sdp_ttl);
if (url_open(&rtsp_st->rtp_handle, url, URL_RDWR) < 0) {
err = AVERROR_INVALIDDATA;
goto fail;
}
if ((err = rtsp_open_transport_ctx(s, rtsp_st)))
goto fail;
}
return 0;
fail:
ff_rtsp_close_streams(s);
ff_network_close();
return err;
} | ['static int sdp_read_header(AVFormatContext *s, AVFormatParameters *ap)\n{\n RTSPState *rt = s->priv_data;\n RTSPStream *rtsp_st;\n int size, i, err;\n char *content;\n char url[1024];\n if (!ff_network_init())\n return AVERROR(EIO);\n content = av_malloc(SDP_MAX_SIZE);\n size = get_buffer(s->pb, content, SDP_MAX_SIZE - 1);\n if (size <= 0) {\n av_free(content);\n return AVERROR_INVALIDDATA;\n }\n content[size] =\'\\0\';\n ff_sdp_parse(s, content);\n av_free(content);\n for (i = 0; i < rt->nb_rtsp_streams; i++) {\n char namebuf[50];\n rtsp_st = rt->rtsp_streams[i];\n getnameinfo((struct sockaddr*) &rtsp_st->sdp_ip, sizeof(rtsp_st->sdp_ip),\n namebuf, sizeof(namebuf), NULL, 0, NI_NUMERICHOST);\n ff_url_join(url, sizeof(url), "rtp", NULL,\n namebuf, rtsp_st->sdp_port,\n "?localport=%d&ttl=%d", rtsp_st->sdp_port,\n rtsp_st->sdp_ttl);\n if (url_open(&rtsp_st->rtp_handle, url, URL_RDWR) < 0) {\n err = AVERROR_INVALIDDATA;\n goto fail;\n }\n if ((err = rtsp_open_transport_ctx(s, rtsp_st)))\n goto fail;\n }\n return 0;\nfail:\n ff_rtsp_close_streams(s);\n ff_network_close();\n return err;\n}', 'static inline int ff_network_init(void)\n{\n#if HAVE_WINSOCK2_H\n WSADATA wsaData;\n if (WSAStartup(MAKEWORD(1,1), &wsaData))\n return 0;\n#endif\n return 1;\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}'] |
26,980 | 0 | https://github.com/libav/libav/blob/3ec394ea823c2a6e65a6abbdb2041ce1c66964f8/libavcodec/tscc.c/#L160 | static int decode_rle(CamtasiaContext *c, unsigned int srcsize)
{
unsigned char *src = c->decomp_buf;
unsigned char *output, *output_end;
int p1, p2, line=c->height, pos=0, i;
uint16_t pix16;
uint32_t pix32;
output = c->pic.data[0] + (c->height - 1) * c->pic.linesize[0];
output_end = c->pic.data[0] + (c->height) * c->pic.linesize[0];
while(src < c->decomp_buf + srcsize) {
p1 = *src++;
if(p1 == 0) {
p2 = *src++;
if(p2 == 0) {
output = c->pic.data[0] + (--line) * c->pic.linesize[0];
if (line < 0)
return -1;
pos = 0;
continue;
} else if(p2 == 1) {
return 0;
} else if(p2 == 2) {
p1 = *src++;
p2 = *src++;
line -= p2;
if (line < 0)
return -1;
pos += p1;
output = c->pic.data[0] + line * c->pic.linesize[0] + pos * (c->bpp / 8);
continue;
}
if (output + p2 * (c->bpp / 8) > output_end) {
src += p2 * (c->bpp / 8);
continue;
}
if ((c->bpp == 8) || (c->bpp == 24)) {
for(i = 0; i < p2 * (c->bpp / 8); i++) {
*output++ = *src++;
}
if(c->bpp == 8 && (p2 & 1)) {
src++;
}
} else if (c->bpp == 16) {
for(i = 0; i < p2; i++) {
pix16 = AV_RL16(src);
src += 2;
*(uint16_t*)output = pix16;
output += 2;
}
} else if (c->bpp == 32) {
for(i = 0; i < p2; i++) {
pix32 = AV_RL32(src);
src += 4;
*(uint32_t*)output = pix32;
output += 4;
}
}
pos += p2;
} else {
int pix[4];
switch(c->bpp){
case 8: pix[0] = *src++;
break;
case 16: pix16 = AV_RL16(src);
src += 2;
*(uint16_t*)pix = pix16;
break;
case 24: pix[0] = *src++;
pix[1] = *src++;
pix[2] = *src++;
break;
case 32: pix32 = AV_RL32(src);
src += 4;
*(uint32_t*)pix = pix32;
break;
}
if (output + p1 * (c->bpp / 8) > output_end)
continue;
for(i = 0; i < p1; i++) {
switch(c->bpp){
case 8: *output++ = pix[0];
break;
case 16: *(uint16_t*)output = pix16;
output += 2;
break;
case 24: *output++ = pix[0];
*output++ = pix[1];
*output++ = pix[2];
break;
case 32: *(uint32_t*)output = pix32;
output += 4;
break;
}
}
pos += p1;
}
}
av_log(c->avctx, AV_LOG_ERROR, "Camtasia warning: no End-of-picture code\n");
return 1;
} | ['static int decode_rle(CamtasiaContext *c, unsigned int srcsize)\n{\n unsigned char *src = c->decomp_buf;\n unsigned char *output, *output_end;\n int p1, p2, line=c->height, pos=0, i;\n uint16_t pix16;\n uint32_t pix32;\n output = c->pic.data[0] + (c->height - 1) * c->pic.linesize[0];\n output_end = c->pic.data[0] + (c->height) * c->pic.linesize[0];\n while(src < c->decomp_buf + srcsize) {\n p1 = *src++;\n if(p1 == 0) {\n p2 = *src++;\n if(p2 == 0) {\n output = c->pic.data[0] + (--line) * c->pic.linesize[0];\n if (line < 0)\n return -1;\n pos = 0;\n continue;\n } else if(p2 == 1) {\n return 0;\n } else if(p2 == 2) {\n p1 = *src++;\n p2 = *src++;\n line -= p2;\n if (line < 0)\n return -1;\n pos += p1;\n output = c->pic.data[0] + line * c->pic.linesize[0] + pos * (c->bpp / 8);\n continue;\n }\n if (output + p2 * (c->bpp / 8) > output_end) {\n src += p2 * (c->bpp / 8);\n continue;\n }\n if ((c->bpp == 8) || (c->bpp == 24)) {\n for(i = 0; i < p2 * (c->bpp / 8); i++) {\n *output++ = *src++;\n }\n if(c->bpp == 8 && (p2 & 1)) {\n src++;\n }\n } else if (c->bpp == 16) {\n for(i = 0; i < p2; i++) {\n pix16 = AV_RL16(src);\n src += 2;\n *(uint16_t*)output = pix16;\n output += 2;\n }\n } else if (c->bpp == 32) {\n for(i = 0; i < p2; i++) {\n pix32 = AV_RL32(src);\n src += 4;\n *(uint32_t*)output = pix32;\n output += 4;\n }\n }\n pos += p2;\n } else {\n int pix[4];\n switch(c->bpp){\n case 8: pix[0] = *src++;\n break;\n case 16: pix16 = AV_RL16(src);\n src += 2;\n *(uint16_t*)pix = pix16;\n break;\n case 24: pix[0] = *src++;\n pix[1] = *src++;\n pix[2] = *src++;\n break;\n case 32: pix32 = AV_RL32(src);\n src += 4;\n *(uint32_t*)pix = pix32;\n break;\n }\n if (output + p1 * (c->bpp / 8) > output_end)\n continue;\n for(i = 0; i < p1; i++) {\n switch(c->bpp){\n case 8: *output++ = pix[0];\n break;\n case 16: *(uint16_t*)output = pix16;\n output += 2;\n break;\n case 24: *output++ = pix[0];\n *output++ = pix[1];\n *output++ = pix[2];\n break;\n case 32: *(uint32_t*)output = pix32;\n output += 4;\n break;\n }\n }\n pos += p1;\n }\n }\n av_log(c->avctx, AV_LOG_ERROR, "Camtasia warning: no End-of-picture code\\n");\n return 1;\n}'] |
26,981 | 0 | https://github.com/openssl/openssl/blob/95dc05bc6d0dfe0f3f3681f5e27afbc3f7a35eea/crypto/dsa/dsa_gen.c/#L277 | int DSA_is_prime(BIGNUM *w, void (*callback)(), char *cb_arg)
{
int ok= -1,j,i,n;
BN_CTX *ctx=NULL,*ctx2=NULL;
BIGNUM *w_1,*b,*m,*z,*tmp,*mont_1;
int a;
BN_MONT_CTX *mont=NULL;
if (!BN_is_bit_set(w,0)) return(0);
if ((ctx=BN_CTX_new()) == NULL) goto err;
if ((ctx2=BN_CTX_new()) == NULL) goto err;
if ((mont=BN_MONT_CTX_new()) == NULL) goto err;
m= &(ctx2->bn[2]);
b= &(ctx2->bn[3]);
z= &(ctx2->bn[4]);
w_1= &(ctx2->bn[5]);
tmp= &(ctx2->bn[6]);
mont_1= &(ctx2->bn[7]);
n=50;
if (!BN_sub(w_1,w,BN_value_one())) goto err;
for (a=1; !BN_is_bit_set(w_1,a); a++)
;
if (!BN_rshift(m,w_1,a)) goto err;
BN_MONT_CTX_set(mont,w,ctx);
BN_to_montgomery(mont_1,BN_value_one(),mont,ctx);
BN_to_montgomery(w_1,w_1,mont,ctx);
for (i=1; i < n; i++)
{
BN_rand(b,BN_num_bits(w)-2 ,0,0);
j=0;
if (!BN_mod_exp_mont(z,b,m,w,ctx,mont)) goto err;
if (!BN_to_montgomery(z,z,mont,ctx)) goto err;
for (;;)
{
if (((j == 0) && (BN_cmp(z,mont_1) == 0)) ||
(BN_cmp(z,w_1) == 0))
break;
if ((j > 0) && (BN_cmp(z,mont_1) == 0))
{
ok=0;
goto err;
}
j++;
if (j >= a)
{
ok=0;
goto err;
}
if (!BN_mod_mul_montgomery(z,z,z,mont,ctx)) goto err;
if (callback != NULL) callback(1,j,cb_arg);
}
}
ok=1;
err:
if (ok == -1) DSAerr(DSA_F_DSA_IS_PRIME,ERR_R_BN_LIB);
BN_CTX_free(ctx);
BN_CTX_free(ctx2);
return(ok);
} | ['int DSA_is_prime(BIGNUM *w, void (*callback)(), char *cb_arg)\n\t{\n\tint ok= -1,j,i,n;\n\tBN_CTX *ctx=NULL,*ctx2=NULL;\n\tBIGNUM *w_1,*b,*m,*z,*tmp,*mont_1;\n\tint a;\n\tBN_MONT_CTX *mont=NULL;\n\tif (!BN_is_bit_set(w,0)) return(0);\n\tif ((ctx=BN_CTX_new()) == NULL) goto err;\n\tif ((ctx2=BN_CTX_new()) == NULL) goto err;\n\tif ((mont=BN_MONT_CTX_new()) == NULL) goto err;\n\tm= &(ctx2->bn[2]);\n\tb= &(ctx2->bn[3]);\n\tz= &(ctx2->bn[4]);\n\tw_1= &(ctx2->bn[5]);\n\ttmp= &(ctx2->bn[6]);\n\tmont_1= &(ctx2->bn[7]);\n\tn=50;\n\tif (!BN_sub(w_1,w,BN_value_one())) goto err;\n\tfor (a=1; !BN_is_bit_set(w_1,a); a++)\n\t\t;\n\tif (!BN_rshift(m,w_1,a)) goto err;\n\tBN_MONT_CTX_set(mont,w,ctx);\n\tBN_to_montgomery(mont_1,BN_value_one(),mont,ctx);\n\tBN_to_montgomery(w_1,w_1,mont,ctx);\n\tfor (i=1; i < n; i++)\n\t\t{\n\t\tBN_rand(b,BN_num_bits(w)-2 ,0,0);\n\t\tj=0;\n\t\tif (!BN_mod_exp_mont(z,b,m,w,ctx,mont)) goto err;\n\t\tif (!BN_to_montgomery(z,z,mont,ctx)) goto err;\n\t\tfor (;;)\n\t\t\t{\n\t\t\tif (((j == 0) && (BN_cmp(z,mont_1) == 0)) ||\n\t\t\t\t(BN_cmp(z,w_1) == 0))\n\t\t\t\tbreak;\n\t\t\tif ((j > 0) && (BN_cmp(z,mont_1) == 0))\n\t\t\t\t{\n\t\t\t\tok=0;\n\t\t\t\tgoto err;\n\t\t\t\t}\n\t\t\tj++;\n\t\t\tif (j >= a)\n\t\t\t\t{\n\t\t\t\tok=0;\n\t\t\t\tgoto err;\n\t\t\t\t}\n\t\t\tif (!BN_mod_mul_montgomery(z,z,z,mont,ctx)) goto err;\n\t\t\tif (callback != NULL) callback(1,j,cb_arg);\n\t\t\t}\n\t\t}\n\tok=1;\nerr:\n\tif (ok == -1) DSAerr(DSA_F_DSA_IS_PRIME,ERR_R_BN_LIB);\n\tBN_CTX_free(ctx);\n\tBN_CTX_free(ctx2);\n\treturn(ok);\n\t}', 'int BN_is_bit_set(BIGNUM *a, int n)\n\t{\n\tint i,j;\n\tif (n < 0) return(0);\n\ti=n/BN_BITS2;\n\tj=n%BN_BITS2;\n\tif (a->top <= i) return(0);\n\treturn((a->d[i]&(((BN_ULONG)1)<<j))?1:0);\n\t}', 'BN_CTX *BN_CTX_new(void)\n\t{\n\tBN_CTX *ret;\n\tret=(BN_CTX *)Malloc(sizeof(BN_CTX));\n\tif (ret == NULL)\n\t\t{\n\t\tBNerr(BN_F_BN_CTX_NEW,ERR_R_MALLOC_FAILURE);\n\t\treturn(NULL);\n\t\t}\n\tBN_CTX_init(ret);\n\tret->flags=BN_FLG_MALLOCED;\n\treturn(ret);\n\t}', 'BN_MONT_CTX *BN_MONT_CTX_new(void)\n\t{\n\tBN_MONT_CTX *ret;\n\tif ((ret=(BN_MONT_CTX *)Malloc(sizeof(BN_MONT_CTX))) == NULL)\n\t\treturn(NULL);\n\tBN_MONT_CTX_init(ret);\n\tret->flags=BN_FLG_MALLOCED;\n\treturn(ret);\n\t}', 'BIGNUM *BN_value_one(void)\n\t{\n\tstatic BN_ULONG data_one=1L;\n\tstatic BIGNUM const_one={&data_one,1,1,0};\n\treturn(&const_one);\n\t}'] |
26,982 | 0 | https://github.com/openssl/openssl/blob/8fa6a40be2935ca109a28cc43d28cd27051ada01/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;
}
} | ['int dtls1_read_bytes(SSL *s, int type, unsigned char *buf, int len, int peek)\n\t{\n\tint al,i,j,ret;\n\tunsigned int n;\n\tSSL3_RECORD *rr;\n\tvoid (*cb)(const SSL *ssl,int type2,int val)=NULL;\n\tif (s->s3->rbuf.buf == NULL)\n\t\tif (!ssl3_setup_buffers(s))\n\t\t\treturn(-1);\n\tif ((type && (type != SSL3_RT_APPLICATION_DATA) &&\n\t\t(type != SSL3_RT_HANDSHAKE) && type) ||\n\t (peek && (type != SSL3_RT_APPLICATION_DATA)))\n\t\t{\n\t\tSSLerr(SSL_F_DTLS1_READ_BYTES, ERR_R_INTERNAL_ERROR);\n\t\treturn -1;\n\t\t}\n\tif ( (ret = have_handshake_fragment(s, type, buf, len, peek)))\n\t\treturn ret;\n\tif (!s->in_handshake && SSL_in_init(s))\n\t\t{\n\t\ti=s->handshake_func(s);\n\t\tif (i < 0) return(i);\n\t\tif (i == 0)\n\t\t\t{\n\t\t\tSSLerr(SSL_F_DTLS1_READ_BYTES,SSL_R_SSL_HANDSHAKE_FAILURE);\n\t\t\treturn(-1);\n\t\t\t}\n\t\t}\nstart:\n\ts->rwstate=SSL_NOTHING;\n\trr = &(s->s3->rrec);\n\tif ((rr->length == 0) || (s->rstate == SSL_ST_READ_BODY))\n\t\t{\n\t\tret=dtls1_get_record(s);\n\t\tif (ret <= 0)\n\t\t\t{\n\t\t\tret = dtls1_read_failed(s, ret);\n\t\t\tif (ret <= 0)\n\t\t\t\treturn(ret);\n\t\t\telse\n\t\t\t\tgoto start;\n\t\t\t}\n\t\t}\n\tif (s->s3->change_cipher_spec\n\t\t&& (rr->type != SSL3_RT_HANDSHAKE))\n\t\t{\n\t\tal=SSL_AD_UNEXPECTED_MESSAGE;\n\t\tSSLerr(SSL_F_DTLS1_READ_BYTES,SSL_R_DATA_BETWEEN_CCS_AND_FINISHED);\n\t\tgoto err;\n\t\t}\n\tif (s->shutdown & SSL_RECEIVED_SHUTDOWN)\n\t\t{\n\t\trr->length=0;\n\t\ts->rwstate=SSL_NOTHING;\n\t\treturn(0);\n\t\t}\n\tif (type == rr->type)\n\t\t{\n\t\tif (SSL_in_init(s) && (type == SSL3_RT_APPLICATION_DATA) &&\n\t\t\t(s->enc_read_ctx == NULL))\n\t\t\t{\n\t\t\tal=SSL_AD_UNEXPECTED_MESSAGE;\n\t\t\tSSLerr(SSL_F_DTLS1_READ_BYTES,SSL_R_APP_DATA_IN_HANDSHAKE);\n\t\t\tgoto f_err;\n\t\t\t}\n\t\tif (len <= 0) return(len);\n\t\tif ((unsigned int)len > rr->length)\n\t\t\tn = rr->length;\n\t\telse\n\t\t\tn = (unsigned int)len;\n\t\tmemcpy(buf,&(rr->data[rr->off]),n);\n\t\tif (!peek)\n\t\t\t{\n\t\t\trr->length-=n;\n\t\t\trr->off+=n;\n\t\t\tif (rr->length == 0)\n\t\t\t\t{\n\t\t\t\ts->rstate=SSL_ST_READ_HEADER;\n\t\t\t\trr->off=0;\n\t\t\t\t}\n\t\t\t}\n\t\treturn(n);\n\t\t}\n\t\t{\n\t\tunsigned int k, dest_maxlen = 0;\n\t\tunsigned char *dest = NULL;\n\t\tunsigned int *dest_len = NULL;\n\t\tif (rr->type == SSL3_RT_HANDSHAKE)\n\t\t\t{\n\t\t\tdest_maxlen = sizeof s->d1->handshake_fragment;\n\t\t\tdest = s->d1->handshake_fragment;\n\t\t\tdest_len = &s->d1->handshake_fragment_len;\n\t\t\t}\n\t\telse if (rr->type == SSL3_RT_ALERT)\n\t\t\t{\n\t\t\tdest_maxlen = sizeof(s->d1->alert_fragment);\n\t\t\tdest = s->d1->alert_fragment;\n\t\t\tdest_len = &s->d1->alert_fragment_len;\n\t\t\t}\n\t\telse\n\t\t\tOPENSSL_assert(rr->type == SSL3_RT_CHANGE_CIPHER_SPEC);\n\t\tif (dest_maxlen > 0)\n\t\t\t{\n\t\t\tif ( rr->length < dest_maxlen)\n\t\t\t\t{\n\t\t\t\ts->rstate=SSL_ST_READ_HEADER;\n\t\t\t\trr->length = 0;\n\t\t\t\tgoto start;\n\t\t\t\t}\n\t\t\tfor ( k = 0; k < dest_maxlen; k++)\n\t\t\t\t{\n\t\t\t\tdest[k] = rr->data[rr->off++];\n\t\t\t\trr->length--;\n\t\t\t\t}\n\t\t\t*dest_len = dest_maxlen;\n\t\t\t}\n\t\t}\n\tif ((!s->server) &&\n\t\t(s->d1->handshake_fragment_len >= DTLS1_HM_HEADER_LENGTH) &&\n\t\t(s->d1->handshake_fragment[0] == SSL3_MT_HELLO_REQUEST) &&\n\t\t(s->session != NULL) && (s->session->cipher != NULL))\n\t\t{\n\t\ts->d1->handshake_fragment_len = 0;\n\t\tif ((s->d1->handshake_fragment[1] != 0) ||\n\t\t\t(s->d1->handshake_fragment[2] != 0) ||\n\t\t\t(s->d1->handshake_fragment[3] != 0))\n\t\t\t{\n\t\t\tal=SSL_AD_DECODE_ERROR;\n\t\t\tSSLerr(SSL_F_DTLS1_READ_BYTES,SSL_R_BAD_HELLO_REQUEST);\n\t\t\tgoto err;\n\t\t\t}\n\t\tif (s->msg_callback)\n\t\t\ts->msg_callback(0, s->version, SSL3_RT_HANDSHAKE,\n\t\t\t\ts->d1->handshake_fragment, 4, s, s->msg_callback_arg);\n\t\tif (SSL_is_init_finished(s) &&\n\t\t\t!(s->s3->flags & SSL3_FLAGS_NO_RENEGOTIATE_CIPHERS) &&\n\t\t\t!s->s3->renegotiate)\n\t\t\t{\n\t\t\tssl3_renegotiate(s);\n\t\t\tif (ssl3_renegotiate_check(s))\n\t\t\t\t{\n\t\t\t\ti=s->handshake_func(s);\n\t\t\t\tif (i < 0) return(i);\n\t\t\t\tif (i == 0)\n\t\t\t\t\t{\n\t\t\t\t\tSSLerr(SSL_F_DTLS1_READ_BYTES,SSL_R_SSL_HANDSHAKE_FAILURE);\n\t\t\t\t\treturn(-1);\n\t\t\t\t\t}\n\t\t\t\tif (!(s->mode & SSL_MODE_AUTO_RETRY))\n\t\t\t\t\t{\n\t\t\t\t\tif (s->s3->rbuf.left == 0)\n\t\t\t\t\t\t{\n\t\t\t\t\t\tBIO *bio;\n\t\t\t\t\t\ts->rwstate=SSL_READING;\n\t\t\t\t\t\tbio=SSL_get_rbio(s);\n\t\t\t\t\t\tBIO_clear_retry_flags(bio);\n\t\t\t\t\t\tBIO_set_retry_read(bio);\n\t\t\t\t\t\treturn(-1);\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\tgoto start;\n\t\t}\n\tif (s->d1->alert_fragment_len >= DTLS1_AL_HEADER_LENGTH)\n\t\t{\n\t\tint alert_level = s->d1->alert_fragment[0];\n\t\tint alert_descr = s->d1->alert_fragment[1];\n\t\ts->d1->alert_fragment_len = 0;\n\t\tif (s->msg_callback)\n\t\t\ts->msg_callback(0, s->version, SSL3_RT_ALERT,\n\t\t\t\ts->d1->alert_fragment, 2, s, s->msg_callback_arg);\n\t\tif (s->info_callback != NULL)\n\t\t\tcb=s->info_callback;\n\t\telse if (s->ctx->info_callback != NULL)\n\t\t\tcb=s->ctx->info_callback;\n\t\tif (cb != NULL)\n\t\t\t{\n\t\t\tj = (alert_level << 8) | alert_descr;\n\t\t\tcb(s, SSL_CB_READ_ALERT, j);\n\t\t\t}\n\t\tif (alert_level == 1)\n\t\t\t{\n\t\t\ts->s3->warn_alert = alert_descr;\n\t\t\tif (alert_descr == SSL_AD_CLOSE_NOTIFY)\n\t\t\t\t{\n\t\t\t\ts->shutdown |= SSL_RECEIVED_SHUTDOWN;\n\t\t\t\treturn(0);\n\t\t\t\t}\n#if 0\n\t\t\tif (alert_descr == DTLS1_AD_MISSING_HANDSHAKE_MESSAGE)\n\t\t\t\t{\n\t\t\t\tunsigned short seq;\n\t\t\t\tunsigned int frag_off;\n\t\t\t\tunsigned char *p = &(s->d1->alert_fragment[2]);\n\t\t\t\tn2s(p, seq);\n\t\t\t\tn2l3(p, frag_off);\n\t\t\t\tdtls1_retransmit_message(s, seq, frag_off, &found);\n\t\t\t\tif ( ! found && SSL_in_init(s))\n\t\t\t\t\t{\n\t\t\t\t\tssl3_send_alert(s,SSL3_AL_WARNING,\n\t\t\t\t\t\tDTLS1_AD_MISSING_HANDSHAKE_MESSAGE);\n\t\t\t\t\t}\n\t\t\t\t}\n#endif\n\t\t\t}\n\t\telse if (alert_level == 2)\n\t\t\t{\n\t\t\tchar tmp[16];\n\t\t\ts->rwstate=SSL_NOTHING;\n\t\t\ts->s3->fatal_alert = alert_descr;\n\t\t\tSSLerr(SSL_F_DTLS1_READ_BYTES, SSL_AD_REASON_OFFSET + alert_descr);\n\t\t\tBIO_snprintf(tmp,sizeof tmp,"%d",alert_descr);\n\t\t\tERR_add_error_data(2,"SSL alert number ",tmp);\n\t\t\ts->shutdown|=SSL_RECEIVED_SHUTDOWN;\n\t\t\tSSL_CTX_remove_session(s->ctx,s->session);\n\t\t\treturn(0);\n\t\t\t}\n\t\telse\n\t\t\t{\n\t\t\tal=SSL_AD_ILLEGAL_PARAMETER;\n\t\t\tSSLerr(SSL_F_DTLS1_READ_BYTES,SSL_R_UNKNOWN_ALERT_TYPE);\n\t\t\tgoto f_err;\n\t\t\t}\n\t\tgoto start;\n\t\t}\n\tif (s->shutdown & SSL_SENT_SHUTDOWN)\n\t\t{\n\t\ts->rwstate=SSL_NOTHING;\n\t\trr->length=0;\n\t\treturn(0);\n\t\t}\n\tif (rr->type == SSL3_RT_CHANGE_CIPHER_SPEC)\n {\n struct ccs_header_st ccs_hdr;\n\t\tdtls1_get_ccs_header(rr->data, &ccs_hdr);\n\t\tif ( ccs_hdr.seq == s->d1->handshake_read_seq)\n\t\t\t{\n\t\t\tif (\t(rr->length != DTLS1_CCS_HEADER_LENGTH) ||\n\t\t\t\t(rr->off != 0) || (rr->data[0] != SSL3_MT_CCS))\n\t\t\t\t{\n\t\t\t\ti=SSL_AD_ILLEGAL_PARAMETER;\n\t\t\t\tSSLerr(SSL_F_DTLS1_READ_BYTES,SSL_R_BAD_CHANGE_CIPHER_SPEC);\n\t\t\t\tgoto err;\n\t\t\t\t}\n\t\t\trr->length=0;\n\t\t\tif (s->msg_callback)\n\t\t\t\ts->msg_callback(0, s->version, SSL3_RT_CHANGE_CIPHER_SPEC,\n\t\t\t\t\trr->data, 1, s, s->msg_callback_arg);\n\t\t\ts->s3->change_cipher_spec=1;\n\t\t\tif (!ssl3_do_change_cipher_spec(s))\n\t\t\t\tgoto err;\n\t\t\tdtls1_reset_seq_numbers(s, SSL3_CC_READ);\n\t\t\ts->d1->handshake_read_seq++;\n\t\t\tgoto start;\n\t\t\t}\n\t\telse\n\t\t\t{\n\t\t\trr->length = 0;\n\t\t\tgoto start;\n\t\t\t}\n\t\t}\n\tif ((s->d1->handshake_fragment_len >= DTLS1_HM_HEADER_LENGTH) &&\n\t\t!s->in_handshake)\n\t\t{\n\t\tstruct hm_header_st msg_hdr;\n\t\tdtls1_get_message_header(rr->data, &msg_hdr);\n\t\tif( rr->epoch != s->d1->r_epoch)\n\t\t\t{\n\t\t\trr->length = 0;\n\t\t\tgoto start;\n\t\t\t}\n\t\tif (((s->state&SSL_ST_MASK) == SSL_ST_OK) &&\n\t\t\t!(s->s3->flags & SSL3_FLAGS_NO_RENEGOTIATE_CIPHERS))\n\t\t\t{\n#if 0\n\t\t\ts->state=SSL_ST_BEFORE|(s->server)\n\t\t\t\t?SSL_ST_ACCEPT\n\t\t\t\t:SSL_ST_CONNECT;\n#else\n\t\t\ts->state = s->server ? SSL_ST_ACCEPT : SSL_ST_CONNECT;\n#endif\n\t\t\ts->new_session=1;\n\t\t\t}\n\t\ti=s->handshake_func(s);\n\t\tif (i < 0) return(i);\n\t\tif (i == 0)\n\t\t\t{\n\t\t\tSSLerr(SSL_F_DTLS1_READ_BYTES,SSL_R_SSL_HANDSHAKE_FAILURE);\n\t\t\treturn(-1);\n\t\t\t}\n\t\tif (!(s->mode & SSL_MODE_AUTO_RETRY))\n\t\t\t{\n\t\t\tif (s->s3->rbuf.left == 0)\n\t\t\t\t{\n\t\t\t\tBIO *bio;\n\t\t\t\ts->rwstate=SSL_READING;\n\t\t\t\tbio=SSL_get_rbio(s);\n\t\t\t\tBIO_clear_retry_flags(bio);\n\t\t\t\tBIO_set_retry_read(bio);\n\t\t\t\treturn(-1);\n\t\t\t\t}\n\t\t\t}\n\t\tgoto start;\n\t\t}\n\tswitch (rr->type)\n\t\t{\n\tdefault:\n#ifndef OPENSSL_NO_TLS\n\t\tif (s->version == TLS1_VERSION)\n\t\t\t{\n\t\t\trr->length = 0;\n\t\t\tgoto start;\n\t\t\t}\n#endif\n\t\tal=SSL_AD_UNEXPECTED_MESSAGE;\n\t\tSSLerr(SSL_F_DTLS1_READ_BYTES,SSL_R_UNEXPECTED_RECORD);\n\t\tgoto f_err;\n\tcase SSL3_RT_CHANGE_CIPHER_SPEC:\n\tcase SSL3_RT_ALERT:\n\tcase SSL3_RT_HANDSHAKE:\n\t\tal=SSL_AD_UNEXPECTED_MESSAGE;\n\t\tSSLerr(SSL_F_DTLS1_READ_BYTES,ERR_R_INTERNAL_ERROR);\n\t\tgoto f_err;\n\tcase SSL3_RT_APPLICATION_DATA:\n\t\tif (s->s3->in_read_app_data &&\n\t\t\t(s->s3->total_renegotiations != 0) &&\n\t\t\t((\n\t\t\t\t(s->state & SSL_ST_CONNECT) &&\n\t\t\t\t(s->state >= SSL3_ST_CW_CLNT_HELLO_A) &&\n\t\t\t\t(s->state <= SSL3_ST_CR_SRVR_HELLO_A)\n\t\t\t\t) || (\n\t\t\t\t\t(s->state & SSL_ST_ACCEPT) &&\n\t\t\t\t\t(s->state <= SSL3_ST_SW_HELLO_REQ_A) &&\n\t\t\t\t\t(s->state >= SSL3_ST_SR_CLNT_HELLO_A)\n\t\t\t\t\t)\n\t\t\t\t))\n\t\t\t{\n\t\t\ts->s3->in_read_app_data=2;\n\t\t\treturn(-1);\n\t\t\t}\n\t\telse\n\t\t\t{\n\t\t\tal=SSL_AD_UNEXPECTED_MESSAGE;\n\t\t\tSSLerr(SSL_F_DTLS1_READ_BYTES,SSL_R_UNEXPECTED_RECORD);\n\t\t\tgoto f_err;\n\t\t\t}\n\t\t}\nf_err:\n\tssl3_send_alert(s,SSL3_AL_FATAL,al);\nerr:\n\treturn(-1);\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}', '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}'] |
26,983 | 0 | https://github.com/libav/libav/blob/33147993689223956d735e691dca45588a10c28f/libavformat/rtsp.c/#L1944 | static int sdp_read_header(AVFormatContext *s, AVFormatParameters *ap)
{
RTSPState *rt = s->priv_data;
RTSPStream *rtsp_st;
int size, i, err;
char *content;
char url[1024];
content = av_malloc(SDP_MAX_SIZE);
size = get_buffer(s->pb, content, SDP_MAX_SIZE - 1);
if (size <= 0) {
av_free(content);
return AVERROR_INVALIDDATA;
}
content[size] ='\0';
sdp_parse(s, content);
av_free(content);
for (i = 0; i < rt->nb_rtsp_streams; i++) {
rtsp_st = rt->rtsp_streams[i];
snprintf(url, sizeof(url), "rtp://%s:%d?localport=%d&ttl=%d",
inet_ntoa(rtsp_st->sdp_ip),
rtsp_st->sdp_port,
rtsp_st->sdp_port,
rtsp_st->sdp_ttl);
if (url_open(&rtsp_st->rtp_handle, url, URL_RDWR) < 0) {
err = AVERROR_INVALIDDATA;
goto fail;
}
if ((err = rtsp_open_transport_ctx(s, rtsp_st)))
goto fail;
}
return 0;
fail:
ff_rtsp_close_streams(s);
return err;
} | ['static int sdp_read_header(AVFormatContext *s, AVFormatParameters *ap)\n{\n RTSPState *rt = s->priv_data;\n RTSPStream *rtsp_st;\n int size, i, err;\n char *content;\n char url[1024];\n content = av_malloc(SDP_MAX_SIZE);\n size = get_buffer(s->pb, content, SDP_MAX_SIZE - 1);\n if (size <= 0) {\n av_free(content);\n return AVERROR_INVALIDDATA;\n }\n content[size] =\'\\0\';\n sdp_parse(s, content);\n av_free(content);\n for (i = 0; i < rt->nb_rtsp_streams; i++) {\n rtsp_st = rt->rtsp_streams[i];\n snprintf(url, sizeof(url), "rtp://%s:%d?localport=%d&ttl=%d",\n inet_ntoa(rtsp_st->sdp_ip),\n rtsp_st->sdp_port,\n rtsp_st->sdp_port,\n rtsp_st->sdp_ttl);\n if (url_open(&rtsp_st->rtp_handle, url, URL_RDWR) < 0) {\n err = AVERROR_INVALIDDATA;\n goto fail;\n }\n if ((err = rtsp_open_transport_ctx(s, rtsp_st)))\n goto fail;\n }\n return 0;\nfail:\n ff_rtsp_close_streams(s);\n return err;\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}'] |
26,984 | 0 | https://github.com/libav/libav/blob/c15fea7933b3801962851a37c3ef00ce968431c4/libavformat/utils.c/#L2682 | 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_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 av_cold void uninit(AVFilterContext *ctx)\n{\n MovieContext *movie = ctx->priv;\n av_free(movie->file_name);\n av_free(movie->format_name);\n if (movie->codec_ctx)\n avcodec_close(movie->codec_ctx);\n if (movie->format_ctx)\n avformat_close_input(&movie->format_ctx);\n avfilter_unref_buffer(movie->picref);\n avcodec_free_frame(&movie->frame);\n}', 'int avcodec_close(AVCodecContext *avctx)\n{\n if (ff_lockmgr_cb) {\n if ((*ff_lockmgr_cb)(&codec_mutex, AV_LOCK_OBTAIN))\n return -1;\n }\n entangled_thread_counter++;\n if (entangled_thread_counter != 1) {\n av_log(avctx, AV_LOG_ERROR, "insufficient thread locking around avcodec_open/close()\\n");\n entangled_thread_counter--;\n return -1;\n }\n if (avcodec_is_open(avctx)) {\n if (HAVE_THREADS && avctx->thread_opaque)\n ff_thread_free(avctx);\n if (avctx->codec && avctx->codec->close)\n avctx->codec->close(avctx);\n avcodec_default_free_buffers(avctx);\n avctx->coded_frame = NULL;\n av_freep(&avctx->internal);\n }\n if (avctx->priv_data && avctx->codec && avctx->codec->priv_class)\n av_opt_free(avctx->priv_data);\n av_opt_free(avctx);\n av_freep(&avctx->priv_data);\n if (av_codec_is_encoder(avctx->codec))\n av_freep(&avctx->extradata);\n avctx->codec = NULL;\n avctx->active_thread_type = 0;\n entangled_thread_counter--;\n if (ff_lockmgr_cb) {\n (*ff_lockmgr_cb)(&codec_mutex, AV_LOCK_RELEASE);\n }\n return 0;\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 }\n avformat_free_context(s);\n *ps = NULL;\n avio_close(pb);\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_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}'] |
26,985 | 0 | https://github.com/openssl/openssl/blob/fa9bb6201e1d16ba8ccab938833d140ef81a7f73/crypto/bn/bn_lib.c/#L444 | 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_group_check_discriminant(const EC_GROUP *group, BN_CTX *ctx)\n{\n int ret = 0;\n BIGNUM *a, *b, *order, *tmp_1, *tmp_2;\n const BIGNUM *p = group->field;\n BN_CTX *new_ctx = NULL;\n if (ctx == NULL) {\n ctx = new_ctx = BN_CTX_new();\n if (ctx == NULL) {\n ECerr(EC_F_EC_GFP_SIMPLE_GROUP_CHECK_DISCRIMINANT,\n ERR_R_MALLOC_FAILURE);\n goto err;\n }\n }\n BN_CTX_start(ctx);\n a = BN_CTX_get(ctx);\n b = BN_CTX_get(ctx);\n tmp_1 = BN_CTX_get(ctx);\n tmp_2 = BN_CTX_get(ctx);\n order = BN_CTX_get(ctx);\n if (order == NULL)\n goto err;\n if (group->meth->field_decode) {\n if (!group->meth->field_decode(group, a, group->a, ctx))\n goto err;\n if (!group->meth->field_decode(group, b, group->b, ctx))\n goto err;\n } else {\n if (!BN_copy(a, group->a))\n goto err;\n if (!BN_copy(b, group->b))\n goto err;\n }\n if (BN_is_zero(a)) {\n if (BN_is_zero(b))\n goto err;\n } else if (!BN_is_zero(b)) {\n if (!BN_mod_sqr(tmp_1, a, p, ctx))\n goto err;\n if (!BN_mod_mul(tmp_2, tmp_1, a, p, ctx))\n goto err;\n if (!BN_lshift(tmp_1, tmp_2, 2))\n goto err;\n if (!BN_mod_sqr(tmp_2, b, p, ctx))\n goto err;\n if (!BN_mul_word(tmp_2, 27))\n goto err;\n if (!BN_mod_add(a, tmp_1, tmp_2, p, ctx))\n goto err;\n if (BN_is_zero(a))\n goto err;\n }\n ret = 1;\n err:\n if (ctx != NULL)\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}'] |
26,986 | 0 | https://github.com/openssl/openssl/blob/e3713c365c2657236439fea00822a43aa396d112/crypto/bn/bn_shift.c/#L165 | int BN_rshift(BIGNUM *r, const BIGNUM *a, int n)
{
int i, j, nw, lb, rb;
BN_ULONG *t, *f;
BN_ULONG l, tmp;
bn_check_top(r);
bn_check_top(a);
if (n < 0) {
BNerr(BN_F_BN_RSHIFT, BN_R_INVALID_SHIFT);
return 0;
}
nw = n / BN_BITS2;
rb = n % BN_BITS2;
lb = BN_BITS2 - rb;
if (nw >= a->top || a->top == 0) {
BN_zero(r);
return 1;
}
i = (BN_num_bits(a) - n + (BN_BITS2 - 1)) / BN_BITS2;
if (r != a) {
if (bn_wexpand(r, i) == NULL)
return (0);
r->neg = a->neg;
} else {
if (n == 0)
return 1;
}
f = &(a->d[nw]);
t = r->d;
j = a->top - nw;
r->top = i;
if (rb == 0) {
for (i = j; i != 0; i--)
*(t++) = *(f++);
} else {
l = *(f++);
for (i = j - 1; i != 0; i--) {
tmp = (l >> rb) & BN_MASK2;
l = *(f++);
*(t++) = (tmp | (l << lb)) & BN_MASK2;
}
if ((l = (l >> rb) & BN_MASK2))
*(t) = l;
}
if (!r->top)
r->neg = 0;
bn_check_top(r);
return 1;
} | ['ECDSA_SIG *ossl_ecdsa_sign_sig(const unsigned char *dgst, int dgst_len,\n const BIGNUM *in_kinv, const BIGNUM *in_r,\n EC_KEY *eckey)\n{\n int ok = 0, i;\n BIGNUM *kinv = NULL, *s, *m = NULL, *tmp = NULL;\n const BIGNUM *order, *ckinv;\n BN_CTX *ctx = NULL;\n const EC_GROUP *group;\n ECDSA_SIG *ret;\n const BIGNUM *priv_key;\n group = EC_KEY_get0_group(eckey);\n priv_key = EC_KEY_get0_private_key(eckey);\n if (group == NULL || priv_key == NULL) {\n ECerr(EC_F_OSSL_ECDSA_SIGN_SIG, ERR_R_PASSED_NULL_PARAMETER);\n return NULL;\n }\n if (!EC_KEY_can_sign(eckey)) {\n ECerr(EC_F_OSSL_ECDSA_SIGN_SIG, EC_R_CURVE_DOES_NOT_SUPPORT_SIGNING);\n return NULL;\n }\n ret = ECDSA_SIG_new();\n if (ret == NULL) {\n ECerr(EC_F_OSSL_ECDSA_SIGN_SIG, ERR_R_MALLOC_FAILURE);\n return NULL;\n }\n ret->r = BN_new();\n ret->s = BN_new();\n if (ret->r == NULL || ret->s == NULL) {\n ECerr(EC_F_OSSL_ECDSA_SIGN_SIG, ERR_R_MALLOC_FAILURE);\n goto err;\n }\n s = ret->s;\n if ((ctx = BN_CTX_new()) == NULL ||\n (tmp = BN_new()) == NULL || (m = BN_new()) == NULL) {\n ECerr(EC_F_OSSL_ECDSA_SIGN_SIG, ERR_R_MALLOC_FAILURE);\n goto err;\n }\n order = EC_GROUP_get0_order(group);\n if (order == NULL) {\n ECerr(EC_F_OSSL_ECDSA_SIGN_SIG, ERR_R_EC_LIB);\n goto err;\n }\n i = BN_num_bits(order);\n if (8 * dgst_len > i)\n dgst_len = (i + 7) / 8;\n if (!BN_bin2bn(dgst, dgst_len, m)) {\n ECerr(EC_F_OSSL_ECDSA_SIGN_SIG, ERR_R_BN_LIB);\n goto err;\n }\n if ((8 * dgst_len > i) && !BN_rshift(m, m, 8 - (i & 0x7))) {\n ECerr(EC_F_OSSL_ECDSA_SIGN_SIG, ERR_R_BN_LIB);\n goto err;\n }\n do {\n if (in_kinv == NULL || in_r == NULL) {\n if (!ecdsa_sign_setup(eckey, ctx, &kinv, &ret->r, dgst, dgst_len)) {\n ECerr(EC_F_OSSL_ECDSA_SIGN_SIG, ERR_R_ECDSA_LIB);\n goto err;\n }\n ckinv = kinv;\n } else {\n ckinv = in_kinv;\n if (BN_copy(ret->r, in_r) == NULL) {\n ECerr(EC_F_OSSL_ECDSA_SIGN_SIG, ERR_R_MALLOC_FAILURE);\n goto err;\n }\n }\n if (!BN_mod_mul(tmp, priv_key, ret->r, order, ctx)) {\n ECerr(EC_F_OSSL_ECDSA_SIGN_SIG, ERR_R_BN_LIB);\n goto err;\n }\n if (!BN_mod_add_quick(s, tmp, m, order)) {\n ECerr(EC_F_OSSL_ECDSA_SIGN_SIG, ERR_R_BN_LIB);\n goto err;\n }\n if (!BN_mod_mul(s, s, ckinv, order, ctx)) {\n ECerr(EC_F_OSSL_ECDSA_SIGN_SIG, ERR_R_BN_LIB);\n goto err;\n }\n if (BN_is_zero(s)) {\n if (in_kinv != NULL && in_r != NULL) {\n ECerr(EC_F_OSSL_ECDSA_SIGN_SIG, EC_R_NEED_NEW_SETUP_VALUES);\n goto err;\n }\n } else\n break;\n }\n while (1);\n ok = 1;\n err:\n if (!ok) {\n ECDSA_SIG_free(ret);\n ret = NULL;\n }\n BN_CTX_free(ctx);\n BN_clear_free(m);\n BN_clear_free(tmp);\n BN_clear_free(kinv);\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}', 'int BN_rshift(BIGNUM *r, const BIGNUM *a, int n)\n{\n int i, j, nw, lb, rb;\n BN_ULONG *t, *f;\n BN_ULONG l, tmp;\n bn_check_top(r);\n bn_check_top(a);\n if (n < 0) {\n BNerr(BN_F_BN_RSHIFT, BN_R_INVALID_SHIFT);\n return 0;\n }\n nw = n / BN_BITS2;\n rb = n % BN_BITS2;\n lb = BN_BITS2 - rb;\n if (nw >= a->top || a->top == 0) {\n BN_zero(r);\n return 1;\n }\n i = (BN_num_bits(a) - n + (BN_BITS2 - 1)) / BN_BITS2;\n if (r != a) {\n if (bn_wexpand(r, i) == NULL)\n return (0);\n r->neg = a->neg;\n } else {\n if (n == 0)\n return 1;\n }\n f = &(a->d[nw]);\n t = r->d;\n j = a->top - nw;\n r->top = i;\n if (rb == 0) {\n for (i = j; i != 0; i--)\n *(t++) = *(f++);\n } else {\n l = *(f++);\n for (i = j - 1; i != 0; i--) {\n tmp = (l >> rb) & BN_MASK2;\n l = *(f++);\n *(t++) = (tmp | (l << lb)) & BN_MASK2;\n }\n if ((l = (l >> rb) & BN_MASK2))\n *(t) = l;\n }\n if (!r->top)\n r->neg = 0;\n bn_check_top(r);\n return 1;\n}'] |
26,987 | 0 | https://github.com/openssl/openssl/blob/8da94770f0a049497b1a52ee469cca1f4a13b1a7/crypto/bn/bn_ctx.c/#L328 | static unsigned int BN_STACK_pop(BN_STACK *st)
{
return st->indexes[--(st->depth)];
} | ['static int VKO_compute_key(unsigned char *shared_key, size_t shared_key_size,\n const EC_POINT *pub_key, EC_KEY *priv_key,\n const unsigned char *ukm)\n{\n unsigned char ukm_be[8], databuf[64], hashbuf[64];\n BIGNUM *UKM = NULL, *p = NULL, *order = NULL, *X = NULL, *Y = NULL;\n const BIGNUM *key = EC_KEY_get0_private_key(priv_key);\n EC_POINT *pnt = EC_POINT_new(EC_KEY_get0_group(priv_key));\n int i;\n gost_hash_ctx hash_ctx;\n BN_CTX *ctx = BN_CTX_new();\n for (i = 0; i < 8; i++) {\n ukm_be[7 - i] = ukm[i];\n }\n BN_CTX_start(ctx);\n UKM = BN_bin2bn(ukm_be, 8, NULL);\n p = BN_CTX_get(ctx);\n order = BN_CTX_get(ctx);\n X = BN_CTX_get(ctx);\n Y = BN_CTX_get(ctx);\n EC_GROUP_get_order(EC_KEY_get0_group(priv_key), order, ctx);\n BN_mod_mul(p, key, UKM, order, ctx);\n EC_POINT_mul(EC_KEY_get0_group(priv_key), pnt, NULL, pub_key, p, ctx);\n EC_POINT_get_affine_coordinates_GFp(EC_KEY_get0_group(priv_key),\n pnt, X, Y, ctx);\n store_bignum(Y, databuf, 32);\n store_bignum(X, databuf + 32, 32);\n for (i = 0; i < 64; i++) {\n hashbuf[63 - i] = databuf[i];\n }\n init_gost_hash_ctx(&hash_ctx, &GostR3411_94_CryptoProParamSet);\n start_hash(&hash_ctx);\n hash_block(&hash_ctx, hashbuf, 64);\n finish_hash(&hash_ctx, shared_key);\n done_gost_hash_ctx(&hash_ctx);\n BN_free(UKM);\n BN_CTX_end(ctx);\n BN_CTX_free(ctx);\n EC_POINT_free(pnt);\n return 32;\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_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_sqr(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 || !tmp)\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 if (a->d[al - 1] == (a->d[al - 1] & BN_MASK2l))\n rr->top = max - 1;\n else\n rr->top = max;\n if (rr != r)\n BN_copy(r, rr);\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_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}'] |
26,988 | 0 | https://github.com/libav/libav/blob/91f9b6579ac684c4b51c4cd0dbaed0a4f8295edf/libavcodec/mpegvideo_enc.c/#L1443 | static void frame_end(MpegEncContext *s)
{
int i;
if (s->unrestricted_mv &&
s->current_picture.reference &&
!s->intra_only) {
const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(s->avctx->pix_fmt);
int hshift = desc->log2_chroma_w;
int vshift = desc->log2_chroma_h;
s->mpvencdsp.draw_edges(s->current_picture.f->data[0], s->linesize,
s->h_edge_pos, s->v_edge_pos,
EDGE_WIDTH, EDGE_WIDTH,
EDGE_TOP | EDGE_BOTTOM);
s->mpvencdsp.draw_edges(s->current_picture.f->data[1], s->uvlinesize,
s->h_edge_pos >> hshift,
s->v_edge_pos >> vshift,
EDGE_WIDTH >> hshift,
EDGE_WIDTH >> vshift,
EDGE_TOP | EDGE_BOTTOM);
s->mpvencdsp.draw_edges(s->current_picture.f->data[2], s->uvlinesize,
s->h_edge_pos >> hshift,
s->v_edge_pos >> vshift,
EDGE_WIDTH >> hshift,
EDGE_WIDTH >> vshift,
EDGE_TOP | EDGE_BOTTOM);
}
emms_c();
s->last_pict_type = s->pict_type;
s->last_lambda_for [s->pict_type] = s->current_picture_ptr->f->quality;
if (s->pict_type!= AV_PICTURE_TYPE_B)
s->last_non_b_pict_type = s->pict_type;
if (s->encoding) {
for (i = 0; i < MAX_PICTURE_COUNT; i++) {
if (!s->picture[i].reference)
ff_mpeg_unref_picture(s->avctx, &s->picture[i]);
}
}
s->avctx->coded_frame = s->current_picture_ptr->f;
} | ['static void frame_end(MpegEncContext *s)\n{\n int i;\n if (s->unrestricted_mv &&\n s->current_picture.reference &&\n !s->intra_only) {\n const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(s->avctx->pix_fmt);\n int hshift = desc->log2_chroma_w;\n int vshift = desc->log2_chroma_h;\n s->mpvencdsp.draw_edges(s->current_picture.f->data[0], s->linesize,\n s->h_edge_pos, s->v_edge_pos,\n EDGE_WIDTH, EDGE_WIDTH,\n EDGE_TOP | EDGE_BOTTOM);\n s->mpvencdsp.draw_edges(s->current_picture.f->data[1], s->uvlinesize,\n s->h_edge_pos >> hshift,\n s->v_edge_pos >> vshift,\n EDGE_WIDTH >> hshift,\n EDGE_WIDTH >> vshift,\n EDGE_TOP | EDGE_BOTTOM);\n s->mpvencdsp.draw_edges(s->current_picture.f->data[2], s->uvlinesize,\n s->h_edge_pos >> hshift,\n s->v_edge_pos >> vshift,\n EDGE_WIDTH >> hshift,\n EDGE_WIDTH >> vshift,\n EDGE_TOP | EDGE_BOTTOM);\n }\n emms_c();\n s->last_pict_type = s->pict_type;\n s->last_lambda_for [s->pict_type] = s->current_picture_ptr->f->quality;\n if (s->pict_type!= AV_PICTURE_TYPE_B)\n s->last_non_b_pict_type = s->pict_type;\n if (s->encoding) {\n for (i = 0; i < MAX_PICTURE_COUNT; i++) {\n if (!s->picture[i].reference)\n ff_mpeg_unref_picture(s->avctx, &s->picture[i]);\n }\n }\n s->avctx->coded_frame = s->current_picture_ptr->f;\n}', 'const AVPixFmtDescriptor *av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)\n{\n if (pix_fmt < 0 || pix_fmt >= AV_PIX_FMT_NB)\n return NULL;\n return &av_pix_fmt_descriptors[pix_fmt];\n}'] |
26,989 | 0 | https://github.com/libav/libav/blob/2c4b87ea0e61cc762de7536dbae743effc12ba08/libavcodec/wmavoice.c/#L723 | static void wiener_denoise(WMAVoiceContext *s, int fcb_type,
float *synth_pf, int size,
const float *lpcs)
{
int remainder, lim, n;
if (fcb_type != FCB_TYPE_SILENCE) {
float *tilted_lpcs = s->tilted_lpcs_pf,
*coeffs = s->denoise_coeffs_pf, tilt_mem = 0;
tilted_lpcs[0] = 1.0;
memcpy(&tilted_lpcs[1], lpcs, sizeof(lpcs[0]) * s->lsps);
memset(&tilted_lpcs[s->lsps + 1], 0,
sizeof(tilted_lpcs[0]) * (128 - s->lsps - 1));
ff_tilt_compensation(&tilt_mem, 0.7 * tilt_factor(lpcs, s->lsps),
tilted_lpcs, s->lsps + 2);
remainder = FFMIN(127 - size, size - 1);
calc_input_response(s, tilted_lpcs, fcb_type, coeffs, remainder);
memset(&synth_pf[size], 0, sizeof(synth_pf[0]) * (128 - size));
ff_rdft_calc(&s->rdft, synth_pf);
ff_rdft_calc(&s->rdft, coeffs);
synth_pf[0] *= coeffs[0];
synth_pf[1] *= coeffs[1];
for (n = 1; n < 128; n++) {
float v1 = synth_pf[n * 2], v2 = synth_pf[n * 2 + 1];
synth_pf[n * 2] = v1 * coeffs[n * 2] - v2 * coeffs[n * 2 + 1];
synth_pf[n * 2 + 1] = v2 * coeffs[n * 2] + v1 * coeffs[n * 2 + 1];
}
ff_rdft_calc(&s->irdft, synth_pf);
}
if (s->denoise_filter_cache_size) {
lim = FFMIN(s->denoise_filter_cache_size, size);
for (n = 0; n < lim; n++)
synth_pf[n] += s->denoise_filter_cache[n];
s->denoise_filter_cache_size -= lim;
memmove(s->denoise_filter_cache, &s->denoise_filter_cache[size],
sizeof(s->denoise_filter_cache[0]) * s->denoise_filter_cache_size);
}
if (fcb_type != FCB_TYPE_SILENCE) {
lim = FFMIN(remainder, s->denoise_filter_cache_size);
for (n = 0; n < lim; n++)
s->denoise_filter_cache[n] += synth_pf[size + n];
if (lim < remainder) {
memcpy(&s->denoise_filter_cache[lim], &synth_pf[size + lim],
sizeof(s->denoise_filter_cache[0]) * (remainder - lim));
s->denoise_filter_cache_size = remainder;
}
}
} | ['static void wiener_denoise(WMAVoiceContext *s, int fcb_type,\n float *synth_pf, int size,\n const float *lpcs)\n{\n int remainder, lim, n;\n if (fcb_type != FCB_TYPE_SILENCE) {\n float *tilted_lpcs = s->tilted_lpcs_pf,\n *coeffs = s->denoise_coeffs_pf, tilt_mem = 0;\n tilted_lpcs[0] = 1.0;\n memcpy(&tilted_lpcs[1], lpcs, sizeof(lpcs[0]) * s->lsps);\n memset(&tilted_lpcs[s->lsps + 1], 0,\n sizeof(tilted_lpcs[0]) * (128 - s->lsps - 1));\n ff_tilt_compensation(&tilt_mem, 0.7 * tilt_factor(lpcs, s->lsps),\n tilted_lpcs, s->lsps + 2);\n remainder = FFMIN(127 - size, size - 1);\n calc_input_response(s, tilted_lpcs, fcb_type, coeffs, remainder);\n memset(&synth_pf[size], 0, sizeof(synth_pf[0]) * (128 - size));\n ff_rdft_calc(&s->rdft, synth_pf);\n ff_rdft_calc(&s->rdft, coeffs);\n synth_pf[0] *= coeffs[0];\n synth_pf[1] *= coeffs[1];\n for (n = 1; n < 128; n++) {\n float v1 = synth_pf[n * 2], v2 = synth_pf[n * 2 + 1];\n synth_pf[n * 2] = v1 * coeffs[n * 2] - v2 * coeffs[n * 2 + 1];\n synth_pf[n * 2 + 1] = v2 * coeffs[n * 2] + v1 * coeffs[n * 2 + 1];\n }\n ff_rdft_calc(&s->irdft, synth_pf);\n }\n if (s->denoise_filter_cache_size) {\n lim = FFMIN(s->denoise_filter_cache_size, size);\n for (n = 0; n < lim; n++)\n synth_pf[n] += s->denoise_filter_cache[n];\n s->denoise_filter_cache_size -= lim;\n memmove(s->denoise_filter_cache, &s->denoise_filter_cache[size],\n sizeof(s->denoise_filter_cache[0]) * s->denoise_filter_cache_size);\n }\n if (fcb_type != FCB_TYPE_SILENCE) {\n lim = FFMIN(remainder, s->denoise_filter_cache_size);\n for (n = 0; n < lim; n++)\n s->denoise_filter_cache[n] += synth_pf[size + n];\n if (lim < remainder) {\n memcpy(&s->denoise_filter_cache[lim], &synth_pf[size + lim],\n sizeof(s->denoise_filter_cache[0]) * (remainder - lim));\n s->denoise_filter_cache_size = remainder;\n }\n }\n}'] |
26,990 | 0 | https://github.com/openssl/openssl/blob/0f3e6045898e9aa5d0249e61c874b1f153ae54fa/crypto/asn1/asn1_lib.c/#L189 | void ASN1_put_object(unsigned char **pp, int constructed, int length, int tag,
int xclass)
{
unsigned char *p= *pp;
int i;
i=(constructed)?V_ASN1_CONSTRUCTED:0;
i|=(xclass&V_ASN1_PRIVATE);
if (tag < 31)
*(p++)=i|(tag&V_ASN1_PRIMATIVE_TAG);
else
{
*(p++)=i|V_ASN1_PRIMATIVE_TAG;
while (tag > 0x7f)
{
*(p++)=(tag&0x7f)|0x80;
tag>>=7;
}
*(p++)=(tag&0x7f);
}
if ((constructed == 2) && (length == 0))
*(p++)=0x80;
else
asn1_put_length(&p,length);
*pp=p;
} | ['static int request_certificate(SSL *s)\n\t{\n\tunsigned char *p,*p2,*buf2;\n\tunsigned char *ccd;\n\tint i,j,ctype,ret= -1;\n\tX509 *x509=NULL;\n\tSTACK_OF(X509) *sk=NULL;\n\tccd=s->s2->tmp.ccl;\n\tif (s->state == SSL2_ST_SEND_REQUEST_CERTIFICATE_A)\n\t\t{\n\t\tp=(unsigned char *)s->init_buf->data;\n\t\t*(p++)=SSL2_MT_REQUEST_CERTIFICATE;\n\t\t*(p++)=SSL2_AT_MD5_WITH_RSA_ENCRYPTION;\n\t\tRAND_bytes(ccd,SSL2_MIN_CERT_CHALLENGE_LENGTH);\n\t\tmemcpy(p,ccd,SSL2_MIN_CERT_CHALLENGE_LENGTH);\n\t\ts->state=SSL2_ST_SEND_REQUEST_CERTIFICATE_B;\n\t\ts->init_num=SSL2_MIN_CERT_CHALLENGE_LENGTH+2;\n\t\ts->init_off=0;\n\t\t}\n\tif (s->state == SSL2_ST_SEND_REQUEST_CERTIFICATE_B)\n\t\t{\n\t\ti=ssl2_do_write(s);\n\t\tif (i <= 0)\n\t\t\t{\n\t\t\tret=i;\n\t\t\tgoto end;\n\t\t\t}\n\t\ts->init_num=0;\n\t\ts->state=SSL2_ST_SEND_REQUEST_CERTIFICATE_C;\n\t\t}\n\tif (s->state == SSL2_ST_SEND_REQUEST_CERTIFICATE_C)\n\t\t{\n\t\tp=(unsigned char *)s->init_buf->data;\n\t\ti=ssl2_read(s,(char *)&(p[s->init_num]),6-s->init_num);\n\t\tif (i < 3)\n\t\t\t{\n\t\t\tret=ssl2_part_read(s,SSL_F_REQUEST_CERTIFICATE,i);\n\t\t\tgoto end;\n\t\t\t}\n\t\tif ((*p == SSL2_MT_ERROR) && (i >= 3))\n\t\t\t{\n\t\t\tn2s(p,i);\n\t\t\tif (s->verify_mode & SSL_VERIFY_FAIL_IF_NO_PEER_CERT)\n\t\t\t\t{\n\t\t\t\tssl2_return_error(s,SSL2_PE_BAD_CERTIFICATE);\n\t\t\t\tSSLerr(SSL_F_REQUEST_CERTIFICATE,SSL_R_PEER_DID_NOT_RETURN_A_CERTIFICATE);\n\t\t\t\tgoto end;\n\t\t\t\t}\n\t\t\tret=1;\n\t\t\tgoto end;\n\t\t\t}\n\t\tif ((*(p++) != SSL2_MT_CLIENT_CERTIFICATE) || (i < 6))\n\t\t\t{\n\t\t\tssl2_return_error(s,SSL2_PE_UNDEFINED_ERROR);\n\t\t\tSSLerr(SSL_F_REQUEST_CERTIFICATE,SSL_R_SHORT_READ);\n\t\t\tgoto end;\n\t\t\t}\n\t\tctype= *(p++);\n\t\tif (ctype != SSL2_AT_MD5_WITH_RSA_ENCRYPTION)\n\t\t\t{\n\t\t\tssl2_return_error(s,SSL2_PE_UNSUPPORTED_CERTIFICATE_TYPE);\n\t\t\tSSLerr(SSL_F_REQUEST_CERTIFICATE,SSL_R_BAD_RESPONSE_ARGUMENT);\n\t\t\tgoto end;\n\t\t\t}\n\t\tn2s(p,i); s->s2->tmp.clen=i;\n\t\tn2s(p,i); s->s2->tmp.rlen=i;\n\t\ts->state=SSL2_ST_SEND_REQUEST_CERTIFICATE_D;\n\t\ts->init_num=0;\n\t\t}\n\tp=(unsigned char *)s->init_buf->data;\n\tj=s->s2->tmp.clen+s->s2->tmp.rlen-s->init_num;\n\ti=ssl2_read(s,(char *)&(p[s->init_num]),j);\n\tif (i < j)\n\t\t{\n\t\tret=ssl2_part_read(s,SSL_F_REQUEST_CERTIFICATE,i);\n\t\tgoto end;\n\t\t}\n\tx509=(X509 *)d2i_X509(NULL,&p,(long)s->s2->tmp.clen);\n\tif (x509 == NULL)\n\t\t{\n\t\tSSLerr(SSL_F_REQUEST_CERTIFICATE,ERR_R_X509_LIB);\n\t\tgoto msg_end;\n\t\t}\n\tif (((sk=sk_X509_new_null()) == NULL) || (!sk_X509_push(sk,x509)))\n\t\t{\n\t\tSSLerr(SSL_F_REQUEST_CERTIFICATE,ERR_R_MALLOC_FAILURE);\n\t\tgoto msg_end;\n\t\t}\n\ti=ssl_verify_cert_chain(s,sk);\n\tif (i)\n\t\t{\n\t\tEVP_MD_CTX ctx;\n\t\tEVP_PKEY *pkey=NULL;\n\t\tEVP_VerifyInit(&ctx,s->ctx->rsa_md5);\n\t\tEVP_VerifyUpdate(&ctx,s->s2->key_material,\n\t\t\t(unsigned int)s->s2->key_material_length);\n\t\tEVP_VerifyUpdate(&ctx,ccd,SSL2_MIN_CERT_CHALLENGE_LENGTH);\n\t\ti=i2d_X509(s->session->cert->pkeys[SSL_PKEY_RSA_ENC].x509,NULL);\n\t\tbuf2=(unsigned char *)Malloc((unsigned int)i);\n\t\tif (buf2 == NULL)\n\t\t\t{\n\t\t\tSSLerr(SSL_F_REQUEST_CERTIFICATE,ERR_R_MALLOC_FAILURE);\n\t\t\tgoto msg_end;\n\t\t\t}\n\t\tp2=buf2;\n\t\ti=i2d_X509(s->session->cert->pkeys[SSL_PKEY_RSA_ENC].x509,&p2);\n\t\tEVP_VerifyUpdate(&ctx,buf2,(unsigned int)i);\n\t\tFree(buf2);\n\t\tpkey=X509_get_pubkey(x509);\n\t\tif (pkey == NULL) goto end;\n\t\ti=EVP_VerifyFinal(&ctx,p,s->s2->tmp.rlen,pkey);\n\t\tEVP_PKEY_free(pkey);\n\t\tmemset(&ctx,0,sizeof(ctx));\n\t\tif (i)\n\t\t\t{\n\t\t\tif (s->session->peer != NULL)\n\t\t\t\tX509_free(s->session->peer);\n\t\t\ts->session->peer=x509;\n\t\t\tCRYPTO_add(&x509->references,1,CRYPTO_LOCK_X509);\n\t\t\tret=1;\n\t\t\tgoto end;\n\t\t\t}\n\t\telse\n\t\t\t{\n\t\t\tSSLerr(SSL_F_REQUEST_CERTIFICATE,SSL_R_BAD_CHECKSUM);\n\t\t\tgoto msg_end;\n\t\t\t}\n\t\t}\n\telse\n\t\t{\nmsg_end:\n\t\tssl2_return_error(s,SSL2_PE_BAD_CERTIFICATE);\n\t\t}\nend:\n\tsk_X509_free(sk);\n\tX509_free(x509);\n\treturn(ret);\n\t}', 'int i2d_X509(X509 *a, unsigned char **pp)\n\t{\n\tM_ASN1_I2D_vars(a);\n\tM_ASN1_I2D_len(a->cert_info,\ti2d_X509_CINF);\n\tM_ASN1_I2D_len(a->sig_alg,\ti2d_X509_ALGOR);\n\tM_ASN1_I2D_len(a->signature,\ti2d_ASN1_BIT_STRING);\n\tM_ASN1_I2D_seq_total();\n\tM_ASN1_I2D_put(a->cert_info,\ti2d_X509_CINF);\n\tM_ASN1_I2D_put(a->sig_alg,\ti2d_X509_ALGOR);\n\tM_ASN1_I2D_put(a->signature,\ti2d_ASN1_BIT_STRING);\n\tM_ASN1_I2D_finish();\n\t}', 'void ASN1_put_object(unsigned char **pp, int constructed, int length, int tag,\n\t int xclass)\n\t{\n\tunsigned char *p= *pp;\n\tint i;\n\ti=(constructed)?V_ASN1_CONSTRUCTED:0;\n\ti|=(xclass&V_ASN1_PRIVATE);\n\tif (tag < 31)\n\t\t*(p++)=i|(tag&V_ASN1_PRIMATIVE_TAG);\n\telse\n\t\t{\n\t\t*(p++)=i|V_ASN1_PRIMATIVE_TAG;\n\t\twhile (tag > 0x7f)\n\t\t\t{\n\t\t\t*(p++)=(tag&0x7f)|0x80;\n\t\t\ttag>>=7;\n\t\t\t}\n\t\t*(p++)=(tag&0x7f);\n\t\t}\n\tif ((constructed == 2) && (length == 0))\n\t\t*(p++)=0x80;\n\telse\n\t\tasn1_put_length(&p,length);\n\t*pp=p;\n\t}', 'int i2d_X509_CINF(X509_CINF *a, unsigned char **pp)\n\t{\n\tint v1=0,v2=0;\n\tM_ASN1_I2D_vars(a);\n\tM_ASN1_I2D_len_EXP_opt(a->version,i2d_ASN1_INTEGER,0,v1);\n\tM_ASN1_I2D_len(a->serialNumber,\t\ti2d_ASN1_INTEGER);\n\tM_ASN1_I2D_len(a->signature,\t\ti2d_X509_ALGOR);\n\tM_ASN1_I2D_len(a->issuer,\t\ti2d_X509_NAME);\n\tM_ASN1_I2D_len(a->validity,\t\ti2d_X509_VAL);\n\tM_ASN1_I2D_len(a->subject,\t\ti2d_X509_NAME);\n\tM_ASN1_I2D_len(a->key,\t\t\ti2d_X509_PUBKEY);\n\tM_ASN1_I2D_len_IMP_opt(a->issuerUID,\ti2d_ASN1_BIT_STRING);\n\tM_ASN1_I2D_len_IMP_opt(a->subjectUID,\ti2d_ASN1_BIT_STRING);\n\tM_ASN1_I2D_len_EXP_SEQUENCE_opt_type(X509_EXTENSION,a->extensions,\n\t\t\t\t\t i2d_X509_EXTENSION,3,\n\t\t\t\t\t V_ASN1_SEQUENCE,v2);\n\tM_ASN1_I2D_seq_total();\n\tM_ASN1_I2D_put_EXP_opt(a->version,i2d_ASN1_INTEGER,0,v1);\n\tM_ASN1_I2D_put(a->serialNumber,\t\ti2d_ASN1_INTEGER);\n\tM_ASN1_I2D_put(a->signature,\t\ti2d_X509_ALGOR);\n\tM_ASN1_I2D_put(a->issuer,\t\ti2d_X509_NAME);\n\tM_ASN1_I2D_put(a->validity,\t\ti2d_X509_VAL);\n\tM_ASN1_I2D_put(a->subject,\t\ti2d_X509_NAME);\n\tM_ASN1_I2D_put(a->key,\t\t\ti2d_X509_PUBKEY);\n\tM_ASN1_I2D_put_IMP_opt(a->issuerUID,\ti2d_ASN1_BIT_STRING,1);\n\tM_ASN1_I2D_put_IMP_opt(a->subjectUID,\ti2d_ASN1_BIT_STRING,2);\n\tM_ASN1_I2D_put_EXP_SEQUENCE_opt_type(X509_EXTENSION,a->extensions,\n\t\t\t\t\t i2d_X509_EXTENSION,3,\n\t\t\t\t\t V_ASN1_SEQUENCE,v2);\n\tM_ASN1_I2D_finish();\n\t}'] |
26,991 | 0 | https://github.com/openssl/openssl/blob/f006217bb628d05a2d5b866ff252bd94e3477e1f/test/ectest.c/#L253 | static void prime_field_tests(void)
{
BN_CTX *ctx = NULL;
BIGNUM *p, *a, *b;
EC_GROUP *group;
EC_GROUP *P_160 = NULL, *P_192 = NULL, *P_224 = NULL, *P_256 =
NULL, *P_384 = NULL, *P_521 = NULL;
EC_POINT *P, *Q, *R;
BIGNUM *x, *y, *z;
unsigned char buf[100];
size_t i, len;
int k;
ctx = BN_CTX_new();
if (!ctx)
ABORT;
p = BN_new();
a = BN_new();
b = BN_new();
if (!p || !a || !b)
ABORT;
if (!BN_hex2bn(&p, "17"))
ABORT;
if (!BN_hex2bn(&a, "1"))
ABORT;
if (!BN_hex2bn(&b, "1"))
ABORT;
group = EC_GROUP_new(EC_GFp_mont_method());
if (!group)
ABORT;
if (!EC_GROUP_set_curve_GFp(group, p, a, b, ctx))
ABORT;
{
EC_GROUP *tmp;
tmp = EC_GROUP_new(EC_GROUP_method_of(group));
if (!tmp)
ABORT;
if (!EC_GROUP_copy(tmp, group))
ABORT;
EC_GROUP_free(group);
group = tmp;
}
if (!EC_GROUP_get_curve_GFp(group, p, a, b, ctx))
ABORT;
fprintf(stdout,
"Curve defined by Weierstrass equation\n y^2 = x^3 + a*x + b (mod 0x");
BN_print_fp(stdout, p);
fprintf(stdout, ")\n a = 0x");
BN_print_fp(stdout, a);
fprintf(stdout, "\n b = 0x");
BN_print_fp(stdout, b);
fprintf(stdout, "\n");
P = EC_POINT_new(group);
Q = EC_POINT_new(group);
R = EC_POINT_new(group);
if (!P || !Q || !R)
ABORT;
if (!EC_POINT_set_to_infinity(group, P))
ABORT;
if (!EC_POINT_is_at_infinity(group, P))
ABORT;
buf[0] = 0;
if (!EC_POINT_oct2point(group, Q, buf, 1, ctx))
ABORT;
if (!EC_POINT_add(group, P, P, Q, ctx))
ABORT;
if (!EC_POINT_is_at_infinity(group, P))
ABORT;
x = BN_new();
y = BN_new();
z = BN_new();
if (!x || !y || !z)
ABORT;
if (!BN_hex2bn(&x, "D"))
ABORT;
if (!EC_POINT_set_compressed_coordinates_GFp(group, Q, x, 1, ctx))
ABORT;
if (EC_POINT_is_on_curve(group, Q, ctx) <= 0) {
if (!EC_POINT_get_affine_coordinates_GFp(group, Q, x, y, ctx))
ABORT;
fprintf(stderr, "Point is not on curve: x = 0x");
BN_print_fp(stderr, x);
fprintf(stderr, ", y = 0x");
BN_print_fp(stderr, y);
fprintf(stderr, "\n");
ABORT;
}
fprintf(stdout, "A cyclic subgroup:\n");
k = 100;
do {
if (k-- == 0)
ABORT;
if (EC_POINT_is_at_infinity(group, P))
fprintf(stdout, " point at infinity\n");
else {
if (!EC_POINT_get_affine_coordinates_GFp(group, P, x, y, ctx))
ABORT;
fprintf(stdout, " x = 0x");
BN_print_fp(stdout, x);
fprintf(stdout, ", y = 0x");
BN_print_fp(stdout, y);
fprintf(stdout, "\n");
}
if (!EC_POINT_copy(R, P))
ABORT;
if (!EC_POINT_add(group, P, P, Q, ctx))
ABORT;
}
while (!EC_POINT_is_at_infinity(group, P));
if (!EC_POINT_add(group, P, Q, R, ctx))
ABORT;
if (!EC_POINT_is_at_infinity(group, P))
ABORT;
len =
EC_POINT_point2oct(group, Q, POINT_CONVERSION_COMPRESSED, buf,
sizeof buf, ctx);
if (len == 0)
ABORT;
if (!EC_POINT_oct2point(group, P, buf, len, ctx))
ABORT;
if (0 != EC_POINT_cmp(group, P, Q, ctx))
ABORT;
fprintf(stdout, "Generator as octet string, compressed form:\n ");
for (i = 0; i < len; i++)
fprintf(stdout, "%02X", buf[i]);
len =
EC_POINT_point2oct(group, Q, POINT_CONVERSION_UNCOMPRESSED, buf,
sizeof buf, ctx);
if (len == 0)
ABORT;
if (!EC_POINT_oct2point(group, P, buf, len, ctx))
ABORT;
if (0 != EC_POINT_cmp(group, P, Q, ctx))
ABORT;
fprintf(stdout, "\nGenerator as octet string, uncompressed form:\n ");
for (i = 0; i < len; i++)
fprintf(stdout, "%02X", buf[i]);
len =
EC_POINT_point2oct(group, Q, POINT_CONVERSION_HYBRID, buf, sizeof buf,
ctx);
if (len == 0)
ABORT;
if (!EC_POINT_oct2point(group, P, buf, len, ctx))
ABORT;
if (0 != EC_POINT_cmp(group, P, Q, ctx))
ABORT;
fprintf(stdout, "\nGenerator as octet string, hybrid form:\n ");
for (i = 0; i < len; i++)
fprintf(stdout, "%02X", buf[i]);
if (!EC_POINT_get_Jprojective_coordinates_GFp(group, R, x, y, z, ctx))
ABORT;
fprintf(stdout,
"\nA representation of the inverse of that generator in\nJacobian projective coordinates:\n X = 0x");
BN_print_fp(stdout, x);
fprintf(stdout, ", Y = 0x");
BN_print_fp(stdout, y);
fprintf(stdout, ", Z = 0x");
BN_print_fp(stdout, z);
fprintf(stdout, "\n");
if (!EC_POINT_invert(group, P, ctx))
ABORT;
if (0 != EC_POINT_cmp(group, P, R, ctx))
ABORT;
if (!BN_hex2bn(&p, "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF7FFFFFFF"))
ABORT;
if (1 != BN_is_prime_ex(p, BN_prime_checks, ctx, NULL))
ABORT;
if (!BN_hex2bn(&a, "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF7FFFFFFC"))
ABORT;
if (!BN_hex2bn(&b, "1C97BEFC54BD7A8B65ACF89F81D4D4ADC565FA45"))
ABORT;
if (!EC_GROUP_set_curve_GFp(group, p, a, b, ctx))
ABORT;
if (!BN_hex2bn(&x, "4A96B5688EF573284664698968C38BB913CBFC82"))
ABORT;
if (!BN_hex2bn(&y, "23a628553168947d59dcc912042351377ac5fb32"))
ABORT;
if (!EC_POINT_set_affine_coordinates_GFp(group, P, x, y, ctx))
ABORT;
if (EC_POINT_is_on_curve(group, P, ctx) <= 0)
ABORT;
if (!BN_hex2bn(&z, "0100000000000000000001F4C8F927AED3CA752257"))
ABORT;
if (!EC_GROUP_set_generator(group, P, z, BN_value_one()))
ABORT;
if (!EC_POINT_get_affine_coordinates_GFp(group, P, x, y, ctx))
ABORT;
fprintf(stdout, "\nSEC2 curve secp160r1 -- Generator:\n x = 0x");
BN_print_fp(stdout, x);
fprintf(stdout, "\n y = 0x");
BN_print_fp(stdout, y);
fprintf(stdout, "\n");
if (!BN_hex2bn(&z, "23a628553168947d59dcc912042351377ac5fb32"))
ABORT;
if (0 != BN_cmp(y, z))
ABORT;
fprintf(stdout, "verify degree ...");
if (EC_GROUP_get_degree(group) != 160)
ABORT;
fprintf(stdout, " ok\n");
group_order_tests(group);
if ((P_160 = EC_GROUP_new(EC_GROUP_method_of(group))) == NULL)
ABORT;
if (!EC_GROUP_copy(P_160, group))
ABORT;
if (!BN_hex2bn(&p, "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFFFFFFFFFFFFF"))
ABORT;
if (1 != BN_is_prime_ex(p, BN_prime_checks, ctx, NULL))
ABORT;
if (!BN_hex2bn(&a, "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFFFFFFFFFFFFC"))
ABORT;
if (!BN_hex2bn(&b, "64210519E59C80E70FA7E9AB72243049FEB8DEECC146B9B1"))
ABORT;
if (!EC_GROUP_set_curve_GFp(group, p, a, b, ctx))
ABORT;
if (!BN_hex2bn(&x, "188DA80EB03090F67CBF20EB43A18800F4FF0AFD82FF1012"))
ABORT;
if (!EC_POINT_set_compressed_coordinates_GFp(group, P, x, 1, ctx))
ABORT;
if (EC_POINT_is_on_curve(group, P, ctx) <= 0)
ABORT;
if (!BN_hex2bn(&z, "FFFFFFFFFFFFFFFFFFFFFFFF99DEF836146BC9B1B4D22831"))
ABORT;
if (!EC_GROUP_set_generator(group, P, z, BN_value_one()))
ABORT;
if (!EC_POINT_get_affine_coordinates_GFp(group, P, x, y, ctx))
ABORT;
fprintf(stdout, "\nNIST curve P-192 -- Generator:\n x = 0x");
BN_print_fp(stdout, x);
fprintf(stdout, "\n y = 0x");
BN_print_fp(stdout, y);
fprintf(stdout, "\n");
if (!BN_hex2bn(&z, "07192B95FFC8DA78631011ED6B24CDD573F977A11E794811"))
ABORT;
if (0 != BN_cmp(y, z))
ABORT;
fprintf(stdout, "verify degree ...");
if (EC_GROUP_get_degree(group) != 192)
ABORT;
fprintf(stdout, " ok\n");
group_order_tests(group);
if ((P_192 = EC_GROUP_new(EC_GROUP_method_of(group))) == NULL)
ABORT;
if (!EC_GROUP_copy(P_192, group))
ABORT;
if (!BN_hex2bn
(&p, "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF000000000000000000000001"))
ABORT;
if (1 != BN_is_prime_ex(p, BN_prime_checks, ctx, NULL))
ABORT;
if (!BN_hex2bn
(&a, "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFFFFFFFFFFFFFFFFFFFFE"))
ABORT;
if (!BN_hex2bn
(&b, "B4050A850C04B3ABF54132565044B0B7D7BFD8BA270B39432355FFB4"))
ABORT;
if (!EC_GROUP_set_curve_GFp(group, p, a, b, ctx))
ABORT;
if (!BN_hex2bn
(&x, "B70E0CBD6BB4BF7F321390B94A03C1D356C21122343280D6115C1D21"))
ABORT;
if (!EC_POINT_set_compressed_coordinates_GFp(group, P, x, 0, ctx))
ABORT;
if (EC_POINT_is_on_curve(group, P, ctx) <= 0)
ABORT;
if (!BN_hex2bn
(&z, "FFFFFFFFFFFFFFFFFFFFFFFFFFFF16A2E0B8F03E13DD29455C5C2A3D"))
ABORT;
if (!EC_GROUP_set_generator(group, P, z, BN_value_one()))
ABORT;
if (!EC_POINT_get_affine_coordinates_GFp(group, P, x, y, ctx))
ABORT;
fprintf(stdout, "\nNIST curve P-224 -- Generator:\n x = 0x");
BN_print_fp(stdout, x);
fprintf(stdout, "\n y = 0x");
BN_print_fp(stdout, y);
fprintf(stdout, "\n");
if (!BN_hex2bn
(&z, "BD376388B5F723FB4C22DFE6CD4375A05A07476444D5819985007E34"))
ABORT;
if (0 != BN_cmp(y, z))
ABORT;
fprintf(stdout, "verify degree ...");
if (EC_GROUP_get_degree(group) != 224)
ABORT;
fprintf(stdout, " ok\n");
group_order_tests(group);
if ((P_224 = EC_GROUP_new(EC_GROUP_method_of(group))) == NULL)
ABORT;
if (!EC_GROUP_copy(P_224, group))
ABORT;
if (!BN_hex2bn
(&p,
"FFFFFFFF00000001000000000000000000000000FFFFFFFFFFFFFFFFFFFFFFFF"))
ABORT;
if (1 != BN_is_prime_ex(p, BN_prime_checks, ctx, NULL))
ABORT;
if (!BN_hex2bn
(&a,
"FFFFFFFF00000001000000000000000000000000FFFFFFFFFFFFFFFFFFFFFFFC"))
ABORT;
if (!BN_hex2bn
(&b,
"5AC635D8AA3A93E7B3EBBD55769886BC651D06B0CC53B0F63BCE3C3E27D2604B"))
ABORT;
if (!EC_GROUP_set_curve_GFp(group, p, a, b, ctx))
ABORT;
if (!BN_hex2bn
(&x,
"6B17D1F2E12C4247F8BCE6E563A440F277037D812DEB33A0F4A13945D898C296"))
ABORT;
if (!EC_POINT_set_compressed_coordinates_GFp(group, P, x, 1, ctx))
ABORT;
if (EC_POINT_is_on_curve(group, P, ctx) <= 0)
ABORT;
if (!BN_hex2bn(&z, "FFFFFFFF00000000FFFFFFFFFFFFFFFFBCE6FAADA7179E"
"84F3B9CAC2FC632551"))
ABORT;
if (!EC_GROUP_set_generator(group, P, z, BN_value_one()))
ABORT;
if (!EC_POINT_get_affine_coordinates_GFp(group, P, x, y, ctx))
ABORT;
fprintf(stdout, "\nNIST curve P-256 -- Generator:\n x = 0x");
BN_print_fp(stdout, x);
fprintf(stdout, "\n y = 0x");
BN_print_fp(stdout, y);
fprintf(stdout, "\n");
if (!BN_hex2bn
(&z,
"4FE342E2FE1A7F9B8EE7EB4A7C0F9E162BCE33576B315ECECBB6406837BF51F5"))
ABORT;
if (0 != BN_cmp(y, z))
ABORT;
fprintf(stdout, "verify degree ...");
if (EC_GROUP_get_degree(group) != 256)
ABORT;
fprintf(stdout, " ok\n");
group_order_tests(group);
if ((P_256 = EC_GROUP_new(EC_GROUP_method_of(group))) == NULL)
ABORT;
if (!EC_GROUP_copy(P_256, group))
ABORT;
if (!BN_hex2bn(&p, "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF"
"FFFFFFFFFFFFFFFFFEFFFFFFFF0000000000000000FFFFFFFF"))
ABORT;
if (1 != BN_is_prime_ex(p, BN_prime_checks, ctx, NULL))
ABORT;
if (!BN_hex2bn(&a, "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF"
"FFFFFFFFFFFFFFFFFEFFFFFFFF0000000000000000FFFFFFFC"))
ABORT;
if (!BN_hex2bn(&b, "B3312FA7E23EE7E4988E056BE3F82D19181D9C6EFE8141"
"120314088F5013875AC656398D8A2ED19D2A85C8EDD3EC2AEF"))
ABORT;
if (!EC_GROUP_set_curve_GFp(group, p, a, b, ctx))
ABORT;
if (!BN_hex2bn(&x, "AA87CA22BE8B05378EB1C71EF320AD746E1D3B628BA79B"
"9859F741E082542A385502F25DBF55296C3A545E3872760AB7"))
ABORT;
if (!EC_POINT_set_compressed_coordinates_GFp(group, P, x, 1, ctx))
ABORT;
if (EC_POINT_is_on_curve(group, P, ctx) <= 0)
ABORT;
if (!BN_hex2bn(&z, "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF"
"FFC7634D81F4372DDF581A0DB248B0A77AECEC196ACCC52973"))
ABORT;
if (!EC_GROUP_set_generator(group, P, z, BN_value_one()))
ABORT;
if (!EC_POINT_get_affine_coordinates_GFp(group, P, x, y, ctx))
ABORT;
fprintf(stdout, "\nNIST curve P-384 -- Generator:\n x = 0x");
BN_print_fp(stdout, x);
fprintf(stdout, "\n y = 0x");
BN_print_fp(stdout, y);
fprintf(stdout, "\n");
if (!BN_hex2bn(&z, "3617DE4A96262C6F5D9E98BF9292DC29F8F41DBD289A14"
"7CE9DA3113B5F0B8C00A60B1CE1D7E819D7A431D7C90EA0E5F"))
ABORT;
if (0 != BN_cmp(y, z))
ABORT;
fprintf(stdout, "verify degree ...");
if (EC_GROUP_get_degree(group) != 384)
ABORT;
fprintf(stdout, " ok\n");
group_order_tests(group);
if ((P_384 = EC_GROUP_new(EC_GROUP_method_of(group))) == NULL)
ABORT;
if (!EC_GROUP_copy(P_384, group))
ABORT;
if (!BN_hex2bn(&p, "1FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF"
"FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF"
"FFFFFFFFFFFFFFFFFFFFFFFFFFFF"))
ABORT;
if (1 != BN_is_prime_ex(p, BN_prime_checks, ctx, NULL))
ABORT;
if (!BN_hex2bn(&a, "1FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF"
"FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF"
"FFFFFFFFFFFFFFFFFFFFFFFFFFFC"))
ABORT;
if (!BN_hex2bn(&b, "051953EB9618E1C9A1F929A21A0B68540EEA2DA725B99B"
"315F3B8B489918EF109E156193951EC7E937B1652C0BD3BB1BF073573"
"DF883D2C34F1EF451FD46B503F00"))
ABORT;
if (!EC_GROUP_set_curve_GFp(group, p, a, b, ctx))
ABORT;
if (!BN_hex2bn(&x, "C6858E06B70404E9CD9E3ECB662395B4429C648139053F"
"B521F828AF606B4D3DBAA14B5E77EFE75928FE1DC127A2FFA8DE3348B"
"3C1856A429BF97E7E31C2E5BD66"))
ABORT;
if (!EC_POINT_set_compressed_coordinates_GFp(group, P, x, 0, ctx))
ABORT;
if (EC_POINT_is_on_curve(group, P, ctx) <= 0)
ABORT;
if (!BN_hex2bn(&z, "1FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF"
"FFFFFFFFFFFFFFFFFFFFA51868783BF2F966B7FCC0148F709A5D03BB5"
"C9B8899C47AEBB6FB71E91386409"))
ABORT;
if (!EC_GROUP_set_generator(group, P, z, BN_value_one()))
ABORT;
if (!EC_POINT_get_affine_coordinates_GFp(group, P, x, y, ctx))
ABORT;
fprintf(stdout, "\nNIST curve P-521 -- Generator:\n x = 0x");
BN_print_fp(stdout, x);
fprintf(stdout, "\n y = 0x");
BN_print_fp(stdout, y);
fprintf(stdout, "\n");
if (!BN_hex2bn(&z, "11839296A789A3BC0045C8A5FB42C7D1BD998F54449579"
"B446817AFBD17273E662C97EE72995EF42640C550B9013FAD0761353C"
"7086A272C24088BE94769FD16650"))
ABORT;
if (0 != BN_cmp(y, z))
ABORT;
fprintf(stdout, "verify degree ...");
if (EC_GROUP_get_degree(group) != 521)
ABORT;
fprintf(stdout, " ok\n");
group_order_tests(group);
if ((P_521 = EC_GROUP_new(EC_GROUP_method_of(group))) == NULL)
ABORT;
if (!EC_GROUP_copy(P_521, group))
ABORT;
if (!EC_POINT_copy(Q, P))
ABORT;
if (EC_POINT_is_at_infinity(group, Q))
ABORT;
if (!EC_POINT_dbl(group, P, P, ctx))
ABORT;
if (EC_POINT_is_on_curve(group, P, ctx) <= 0)
ABORT;
if (!EC_POINT_invert(group, Q, ctx))
ABORT;
if (!EC_POINT_add(group, R, P, Q, ctx))
ABORT;
if (!EC_POINT_add(group, R, R, Q, ctx))
ABORT;
if (!EC_POINT_is_at_infinity(group, R))
ABORT;
{
const EC_POINT *points[4];
const BIGNUM *scalars[4];
BIGNUM *scalar3;
if (EC_POINT_is_at_infinity(group, Q))
ABORT;
points[0] = Q;
points[1] = Q;
points[2] = Q;
points[3] = Q;
if (!EC_GROUP_get_order(group, z, ctx))
ABORT;
if (!BN_add(y, z, BN_value_one()))
ABORT;
if (BN_is_odd(y))
ABORT;
if (!BN_rshift1(y, y))
ABORT;
scalars[0] = y;
scalars[1] = y;
fprintf(stdout, "combined multiplication ...");
fflush(stdout);
if (!EC_POINTs_mul(group, P, NULL, 2, points, scalars, ctx))
ABORT;
if (!EC_POINTs_mul(group, R, z, 2, points, scalars, ctx))
ABORT;
if (0 != EC_POINT_cmp(group, P, R, ctx))
ABORT;
if (0 != EC_POINT_cmp(group, R, Q, ctx))
ABORT;
fprintf(stdout, ".");
fflush(stdout);
if (!BN_pseudo_rand(y, BN_num_bits(y), 0, 0))
ABORT;
if (!BN_add(z, z, y))
ABORT;
BN_set_negative(z, 1);
scalars[0] = y;
scalars[1] = z;
if (!EC_POINTs_mul(group, P, NULL, 2, points, scalars, ctx))
ABORT;
if (!EC_POINT_is_at_infinity(group, P))
ABORT;
fprintf(stdout, ".");
fflush(stdout);
if (!BN_pseudo_rand(x, BN_num_bits(y) - 1, 0, 0))
ABORT;
if (!BN_add(z, x, y))
ABORT;
BN_set_negative(z, 1);
scalars[0] = x;
scalars[1] = y;
scalars[2] = z;
scalar3 = BN_new();
if (!scalar3)
ABORT;
BN_zero(scalar3);
scalars[3] = scalar3;
if (!EC_POINTs_mul(group, P, NULL, 4, points, scalars, ctx))
ABORT;
if (!EC_POINT_is_at_infinity(group, P))
ABORT;
fprintf(stdout, " ok\n\n");
BN_free(scalar3);
}
BN_CTX_free(ctx);
BN_free(p);
BN_free(a);
BN_free(b);
EC_GROUP_free(group);
EC_POINT_free(P);
EC_POINT_free(Q);
EC_POINT_free(R);
BN_free(x);
BN_free(y);
BN_free(z);
EC_GROUP_free(P_160);
EC_GROUP_free(P_192);
EC_GROUP_free(P_224);
EC_GROUP_free(P_256);
EC_GROUP_free(P_384);
EC_GROUP_free(P_521);
} | ['static void prime_field_tests(void)\n{\n BN_CTX *ctx = NULL;\n BIGNUM *p, *a, *b;\n EC_GROUP *group;\n EC_GROUP *P_160 = NULL, *P_192 = NULL, *P_224 = NULL, *P_256 =\n NULL, *P_384 = NULL, *P_521 = NULL;\n EC_POINT *P, *Q, *R;\n BIGNUM *x, *y, *z;\n unsigned char buf[100];\n size_t i, len;\n int k;\n ctx = BN_CTX_new();\n if (!ctx)\n ABORT;\n p = BN_new();\n a = BN_new();\n b = BN_new();\n if (!p || !a || !b)\n ABORT;\n if (!BN_hex2bn(&p, "17"))\n ABORT;\n if (!BN_hex2bn(&a, "1"))\n ABORT;\n if (!BN_hex2bn(&b, "1"))\n ABORT;\n group = EC_GROUP_new(EC_GFp_mont_method());\n if (!group)\n ABORT;\n if (!EC_GROUP_set_curve_GFp(group, p, a, b, ctx))\n ABORT;\n {\n EC_GROUP *tmp;\n tmp = EC_GROUP_new(EC_GROUP_method_of(group));\n if (!tmp)\n ABORT;\n if (!EC_GROUP_copy(tmp, group))\n ABORT;\n EC_GROUP_free(group);\n group = tmp;\n }\n if (!EC_GROUP_get_curve_GFp(group, p, a, b, ctx))\n ABORT;\n fprintf(stdout,\n "Curve defined by Weierstrass equation\\n y^2 = x^3 + a*x + b (mod 0x");\n BN_print_fp(stdout, p);\n fprintf(stdout, ")\\n a = 0x");\n BN_print_fp(stdout, a);\n fprintf(stdout, "\\n b = 0x");\n BN_print_fp(stdout, b);\n fprintf(stdout, "\\n");\n P = EC_POINT_new(group);\n Q = EC_POINT_new(group);\n R = EC_POINT_new(group);\n if (!P || !Q || !R)\n ABORT;\n if (!EC_POINT_set_to_infinity(group, P))\n ABORT;\n if (!EC_POINT_is_at_infinity(group, P))\n ABORT;\n buf[0] = 0;\n if (!EC_POINT_oct2point(group, Q, buf, 1, ctx))\n ABORT;\n if (!EC_POINT_add(group, P, P, Q, ctx))\n ABORT;\n if (!EC_POINT_is_at_infinity(group, P))\n ABORT;\n x = BN_new();\n y = BN_new();\n z = BN_new();\n if (!x || !y || !z)\n ABORT;\n if (!BN_hex2bn(&x, "D"))\n ABORT;\n if (!EC_POINT_set_compressed_coordinates_GFp(group, Q, x, 1, ctx))\n ABORT;\n if (EC_POINT_is_on_curve(group, Q, ctx) <= 0) {\n if (!EC_POINT_get_affine_coordinates_GFp(group, Q, x, y, ctx))\n ABORT;\n fprintf(stderr, "Point is not on curve: x = 0x");\n BN_print_fp(stderr, x);\n fprintf(stderr, ", y = 0x");\n BN_print_fp(stderr, y);\n fprintf(stderr, "\\n");\n ABORT;\n }\n fprintf(stdout, "A cyclic subgroup:\\n");\n k = 100;\n do {\n if (k-- == 0)\n ABORT;\n if (EC_POINT_is_at_infinity(group, P))\n fprintf(stdout, " point at infinity\\n");\n else {\n if (!EC_POINT_get_affine_coordinates_GFp(group, P, x, y, ctx))\n ABORT;\n fprintf(stdout, " x = 0x");\n BN_print_fp(stdout, x);\n fprintf(stdout, ", y = 0x");\n BN_print_fp(stdout, y);\n fprintf(stdout, "\\n");\n }\n if (!EC_POINT_copy(R, P))\n ABORT;\n if (!EC_POINT_add(group, P, P, Q, ctx))\n ABORT;\n }\n while (!EC_POINT_is_at_infinity(group, P));\n if (!EC_POINT_add(group, P, Q, R, ctx))\n ABORT;\n if (!EC_POINT_is_at_infinity(group, P))\n ABORT;\n len =\n EC_POINT_point2oct(group, Q, POINT_CONVERSION_COMPRESSED, buf,\n sizeof buf, ctx);\n if (len == 0)\n ABORT;\n if (!EC_POINT_oct2point(group, P, buf, len, ctx))\n ABORT;\n if (0 != EC_POINT_cmp(group, P, Q, ctx))\n ABORT;\n fprintf(stdout, "Generator as octet string, compressed form:\\n ");\n for (i = 0; i < len; i++)\n fprintf(stdout, "%02X", buf[i]);\n len =\n EC_POINT_point2oct(group, Q, POINT_CONVERSION_UNCOMPRESSED, buf,\n sizeof buf, ctx);\n if (len == 0)\n ABORT;\n if (!EC_POINT_oct2point(group, P, buf, len, ctx))\n ABORT;\n if (0 != EC_POINT_cmp(group, P, Q, ctx))\n ABORT;\n fprintf(stdout, "\\nGenerator as octet string, uncompressed form:\\n ");\n for (i = 0; i < len; i++)\n fprintf(stdout, "%02X", buf[i]);\n len =\n EC_POINT_point2oct(group, Q, POINT_CONVERSION_HYBRID, buf, sizeof buf,\n ctx);\n if (len == 0)\n ABORT;\n if (!EC_POINT_oct2point(group, P, buf, len, ctx))\n ABORT;\n if (0 != EC_POINT_cmp(group, P, Q, ctx))\n ABORT;\n fprintf(stdout, "\\nGenerator as octet string, hybrid form:\\n ");\n for (i = 0; i < len; i++)\n fprintf(stdout, "%02X", buf[i]);\n if (!EC_POINT_get_Jprojective_coordinates_GFp(group, R, x, y, z, ctx))\n ABORT;\n fprintf(stdout,\n "\\nA representation of the inverse of that generator in\\nJacobian projective coordinates:\\n X = 0x");\n BN_print_fp(stdout, x);\n fprintf(stdout, ", Y = 0x");\n BN_print_fp(stdout, y);\n fprintf(stdout, ", Z = 0x");\n BN_print_fp(stdout, z);\n fprintf(stdout, "\\n");\n if (!EC_POINT_invert(group, P, ctx))\n ABORT;\n if (0 != EC_POINT_cmp(group, P, R, ctx))\n ABORT;\n if (!BN_hex2bn(&p, "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF7FFFFFFF"))\n ABORT;\n if (1 != BN_is_prime_ex(p, BN_prime_checks, ctx, NULL))\n ABORT;\n if (!BN_hex2bn(&a, "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF7FFFFFFC"))\n ABORT;\n if (!BN_hex2bn(&b, "1C97BEFC54BD7A8B65ACF89F81D4D4ADC565FA45"))\n ABORT;\n if (!EC_GROUP_set_curve_GFp(group, p, a, b, ctx))\n ABORT;\n if (!BN_hex2bn(&x, "4A96B5688EF573284664698968C38BB913CBFC82"))\n ABORT;\n if (!BN_hex2bn(&y, "23a628553168947d59dcc912042351377ac5fb32"))\n ABORT;\n if (!EC_POINT_set_affine_coordinates_GFp(group, P, x, y, ctx))\n ABORT;\n if (EC_POINT_is_on_curve(group, P, ctx) <= 0)\n ABORT;\n if (!BN_hex2bn(&z, "0100000000000000000001F4C8F927AED3CA752257"))\n ABORT;\n if (!EC_GROUP_set_generator(group, P, z, BN_value_one()))\n ABORT;\n if (!EC_POINT_get_affine_coordinates_GFp(group, P, x, y, ctx))\n ABORT;\n fprintf(stdout, "\\nSEC2 curve secp160r1 -- Generator:\\n x = 0x");\n BN_print_fp(stdout, x);\n fprintf(stdout, "\\n y = 0x");\n BN_print_fp(stdout, y);\n fprintf(stdout, "\\n");\n if (!BN_hex2bn(&z, "23a628553168947d59dcc912042351377ac5fb32"))\n ABORT;\n if (0 != BN_cmp(y, z))\n ABORT;\n fprintf(stdout, "verify degree ...");\n if (EC_GROUP_get_degree(group) != 160)\n ABORT;\n fprintf(stdout, " ok\\n");\n group_order_tests(group);\n if ((P_160 = EC_GROUP_new(EC_GROUP_method_of(group))) == NULL)\n ABORT;\n if (!EC_GROUP_copy(P_160, group))\n ABORT;\n if (!BN_hex2bn(&p, "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFFFFFFFFFFFFF"))\n ABORT;\n if (1 != BN_is_prime_ex(p, BN_prime_checks, ctx, NULL))\n ABORT;\n if (!BN_hex2bn(&a, "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFFFFFFFFFFFFC"))\n ABORT;\n if (!BN_hex2bn(&b, "64210519E59C80E70FA7E9AB72243049FEB8DEECC146B9B1"))\n ABORT;\n if (!EC_GROUP_set_curve_GFp(group, p, a, b, ctx))\n ABORT;\n if (!BN_hex2bn(&x, "188DA80EB03090F67CBF20EB43A18800F4FF0AFD82FF1012"))\n ABORT;\n if (!EC_POINT_set_compressed_coordinates_GFp(group, P, x, 1, ctx))\n ABORT;\n if (EC_POINT_is_on_curve(group, P, ctx) <= 0)\n ABORT;\n if (!BN_hex2bn(&z, "FFFFFFFFFFFFFFFFFFFFFFFF99DEF836146BC9B1B4D22831"))\n ABORT;\n if (!EC_GROUP_set_generator(group, P, z, BN_value_one()))\n ABORT;\n if (!EC_POINT_get_affine_coordinates_GFp(group, P, x, y, ctx))\n ABORT;\n fprintf(stdout, "\\nNIST curve P-192 -- Generator:\\n x = 0x");\n BN_print_fp(stdout, x);\n fprintf(stdout, "\\n y = 0x");\n BN_print_fp(stdout, y);\n fprintf(stdout, "\\n");\n if (!BN_hex2bn(&z, "07192B95FFC8DA78631011ED6B24CDD573F977A11E794811"))\n ABORT;\n if (0 != BN_cmp(y, z))\n ABORT;\n fprintf(stdout, "verify degree ...");\n if (EC_GROUP_get_degree(group) != 192)\n ABORT;\n fprintf(stdout, " ok\\n");\n group_order_tests(group);\n if ((P_192 = EC_GROUP_new(EC_GROUP_method_of(group))) == NULL)\n ABORT;\n if (!EC_GROUP_copy(P_192, group))\n ABORT;\n if (!BN_hex2bn\n (&p, "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF000000000000000000000001"))\n ABORT;\n if (1 != BN_is_prime_ex(p, BN_prime_checks, ctx, NULL))\n ABORT;\n if (!BN_hex2bn\n (&a, "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFFFFFFFFFFFFFFFFFFFFE"))\n ABORT;\n if (!BN_hex2bn\n (&b, "B4050A850C04B3ABF54132565044B0B7D7BFD8BA270B39432355FFB4"))\n ABORT;\n if (!EC_GROUP_set_curve_GFp(group, p, a, b, ctx))\n ABORT;\n if (!BN_hex2bn\n (&x, "B70E0CBD6BB4BF7F321390B94A03C1D356C21122343280D6115C1D21"))\n ABORT;\n if (!EC_POINT_set_compressed_coordinates_GFp(group, P, x, 0, ctx))\n ABORT;\n if (EC_POINT_is_on_curve(group, P, ctx) <= 0)\n ABORT;\n if (!BN_hex2bn\n (&z, "FFFFFFFFFFFFFFFFFFFFFFFFFFFF16A2E0B8F03E13DD29455C5C2A3D"))\n ABORT;\n if (!EC_GROUP_set_generator(group, P, z, BN_value_one()))\n ABORT;\n if (!EC_POINT_get_affine_coordinates_GFp(group, P, x, y, ctx))\n ABORT;\n fprintf(stdout, "\\nNIST curve P-224 -- Generator:\\n x = 0x");\n BN_print_fp(stdout, x);\n fprintf(stdout, "\\n y = 0x");\n BN_print_fp(stdout, y);\n fprintf(stdout, "\\n");\n if (!BN_hex2bn\n (&z, "BD376388B5F723FB4C22DFE6CD4375A05A07476444D5819985007E34"))\n ABORT;\n if (0 != BN_cmp(y, z))\n ABORT;\n fprintf(stdout, "verify degree ...");\n if (EC_GROUP_get_degree(group) != 224)\n ABORT;\n fprintf(stdout, " ok\\n");\n group_order_tests(group);\n if ((P_224 = EC_GROUP_new(EC_GROUP_method_of(group))) == NULL)\n ABORT;\n if (!EC_GROUP_copy(P_224, group))\n ABORT;\n if (!BN_hex2bn\n (&p,\n "FFFFFFFF00000001000000000000000000000000FFFFFFFFFFFFFFFFFFFFFFFF"))\n ABORT;\n if (1 != BN_is_prime_ex(p, BN_prime_checks, ctx, NULL))\n ABORT;\n if (!BN_hex2bn\n (&a,\n "FFFFFFFF00000001000000000000000000000000FFFFFFFFFFFFFFFFFFFFFFFC"))\n ABORT;\n if (!BN_hex2bn\n (&b,\n "5AC635D8AA3A93E7B3EBBD55769886BC651D06B0CC53B0F63BCE3C3E27D2604B"))\n ABORT;\n if (!EC_GROUP_set_curve_GFp(group, p, a, b, ctx))\n ABORT;\n if (!BN_hex2bn\n (&x,\n "6B17D1F2E12C4247F8BCE6E563A440F277037D812DEB33A0F4A13945D898C296"))\n ABORT;\n if (!EC_POINT_set_compressed_coordinates_GFp(group, P, x, 1, ctx))\n ABORT;\n if (EC_POINT_is_on_curve(group, P, ctx) <= 0)\n ABORT;\n if (!BN_hex2bn(&z, "FFFFFFFF00000000FFFFFFFFFFFFFFFFBCE6FAADA7179E"\n "84F3B9CAC2FC632551"))\n ABORT;\n if (!EC_GROUP_set_generator(group, P, z, BN_value_one()))\n ABORT;\n if (!EC_POINT_get_affine_coordinates_GFp(group, P, x, y, ctx))\n ABORT;\n fprintf(stdout, "\\nNIST curve P-256 -- Generator:\\n x = 0x");\n BN_print_fp(stdout, x);\n fprintf(stdout, "\\n y = 0x");\n BN_print_fp(stdout, y);\n fprintf(stdout, "\\n");\n if (!BN_hex2bn\n (&z,\n "4FE342E2FE1A7F9B8EE7EB4A7C0F9E162BCE33576B315ECECBB6406837BF51F5"))\n ABORT;\n if (0 != BN_cmp(y, z))\n ABORT;\n fprintf(stdout, "verify degree ...");\n if (EC_GROUP_get_degree(group) != 256)\n ABORT;\n fprintf(stdout, " ok\\n");\n group_order_tests(group);\n if ((P_256 = EC_GROUP_new(EC_GROUP_method_of(group))) == NULL)\n ABORT;\n if (!EC_GROUP_copy(P_256, group))\n ABORT;\n if (!BN_hex2bn(&p, "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF"\n "FFFFFFFFFFFFFFFFFEFFFFFFFF0000000000000000FFFFFFFF"))\n ABORT;\n if (1 != BN_is_prime_ex(p, BN_prime_checks, ctx, NULL))\n ABORT;\n if (!BN_hex2bn(&a, "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF"\n "FFFFFFFFFFFFFFFFFEFFFFFFFF0000000000000000FFFFFFFC"))\n ABORT;\n if (!BN_hex2bn(&b, "B3312FA7E23EE7E4988E056BE3F82D19181D9C6EFE8141"\n "120314088F5013875AC656398D8A2ED19D2A85C8EDD3EC2AEF"))\n ABORT;\n if (!EC_GROUP_set_curve_GFp(group, p, a, b, ctx))\n ABORT;\n if (!BN_hex2bn(&x, "AA87CA22BE8B05378EB1C71EF320AD746E1D3B628BA79B"\n "9859F741E082542A385502F25DBF55296C3A545E3872760AB7"))\n ABORT;\n if (!EC_POINT_set_compressed_coordinates_GFp(group, P, x, 1, ctx))\n ABORT;\n if (EC_POINT_is_on_curve(group, P, ctx) <= 0)\n ABORT;\n if (!BN_hex2bn(&z, "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF"\n "FFC7634D81F4372DDF581A0DB248B0A77AECEC196ACCC52973"))\n ABORT;\n if (!EC_GROUP_set_generator(group, P, z, BN_value_one()))\n ABORT;\n if (!EC_POINT_get_affine_coordinates_GFp(group, P, x, y, ctx))\n ABORT;\n fprintf(stdout, "\\nNIST curve P-384 -- Generator:\\n x = 0x");\n BN_print_fp(stdout, x);\n fprintf(stdout, "\\n y = 0x");\n BN_print_fp(stdout, y);\n fprintf(stdout, "\\n");\n if (!BN_hex2bn(&z, "3617DE4A96262C6F5D9E98BF9292DC29F8F41DBD289A14"\n "7CE9DA3113B5F0B8C00A60B1CE1D7E819D7A431D7C90EA0E5F"))\n ABORT;\n if (0 != BN_cmp(y, z))\n ABORT;\n fprintf(stdout, "verify degree ...");\n if (EC_GROUP_get_degree(group) != 384)\n ABORT;\n fprintf(stdout, " ok\\n");\n group_order_tests(group);\n if ((P_384 = EC_GROUP_new(EC_GROUP_method_of(group))) == NULL)\n ABORT;\n if (!EC_GROUP_copy(P_384, group))\n ABORT;\n if (!BN_hex2bn(&p, "1FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF"\n "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF"\n "FFFFFFFFFFFFFFFFFFFFFFFFFFFF"))\n ABORT;\n if (1 != BN_is_prime_ex(p, BN_prime_checks, ctx, NULL))\n ABORT;\n if (!BN_hex2bn(&a, "1FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF"\n "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF"\n "FFFFFFFFFFFFFFFFFFFFFFFFFFFC"))\n ABORT;\n if (!BN_hex2bn(&b, "051953EB9618E1C9A1F929A21A0B68540EEA2DA725B99B"\n "315F3B8B489918EF109E156193951EC7E937B1652C0BD3BB1BF073573"\n "DF883D2C34F1EF451FD46B503F00"))\n ABORT;\n if (!EC_GROUP_set_curve_GFp(group, p, a, b, ctx))\n ABORT;\n if (!BN_hex2bn(&x, "C6858E06B70404E9CD9E3ECB662395B4429C648139053F"\n "B521F828AF606B4D3DBAA14B5E77EFE75928FE1DC127A2FFA8DE3348B"\n "3C1856A429BF97E7E31C2E5BD66"))\n ABORT;\n if (!EC_POINT_set_compressed_coordinates_GFp(group, P, x, 0, ctx))\n ABORT;\n if (EC_POINT_is_on_curve(group, P, ctx) <= 0)\n ABORT;\n if (!BN_hex2bn(&z, "1FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF"\n "FFFFFFFFFFFFFFFFFFFFA51868783BF2F966B7FCC0148F709A5D03BB5"\n "C9B8899C47AEBB6FB71E91386409"))\n ABORT;\n if (!EC_GROUP_set_generator(group, P, z, BN_value_one()))\n ABORT;\n if (!EC_POINT_get_affine_coordinates_GFp(group, P, x, y, ctx))\n ABORT;\n fprintf(stdout, "\\nNIST curve P-521 -- Generator:\\n x = 0x");\n BN_print_fp(stdout, x);\n fprintf(stdout, "\\n y = 0x");\n BN_print_fp(stdout, y);\n fprintf(stdout, "\\n");\n if (!BN_hex2bn(&z, "11839296A789A3BC0045C8A5FB42C7D1BD998F54449579"\n "B446817AFBD17273E662C97EE72995EF42640C550B9013FAD0761353C"\n "7086A272C24088BE94769FD16650"))\n ABORT;\n if (0 != BN_cmp(y, z))\n ABORT;\n fprintf(stdout, "verify degree ...");\n if (EC_GROUP_get_degree(group) != 521)\n ABORT;\n fprintf(stdout, " ok\\n");\n group_order_tests(group);\n if ((P_521 = EC_GROUP_new(EC_GROUP_method_of(group))) == NULL)\n ABORT;\n if (!EC_GROUP_copy(P_521, group))\n ABORT;\n if (!EC_POINT_copy(Q, P))\n ABORT;\n if (EC_POINT_is_at_infinity(group, Q))\n ABORT;\n if (!EC_POINT_dbl(group, P, P, ctx))\n ABORT;\n if (EC_POINT_is_on_curve(group, P, ctx) <= 0)\n ABORT;\n if (!EC_POINT_invert(group, Q, ctx))\n ABORT;\n if (!EC_POINT_add(group, R, P, Q, ctx))\n ABORT;\n if (!EC_POINT_add(group, R, R, Q, ctx))\n ABORT;\n if (!EC_POINT_is_at_infinity(group, R))\n ABORT;\n {\n const EC_POINT *points[4];\n const BIGNUM *scalars[4];\n BIGNUM *scalar3;\n if (EC_POINT_is_at_infinity(group, Q))\n ABORT;\n points[0] = Q;\n points[1] = Q;\n points[2] = Q;\n points[3] = Q;\n if (!EC_GROUP_get_order(group, z, ctx))\n ABORT;\n if (!BN_add(y, z, BN_value_one()))\n ABORT;\n if (BN_is_odd(y))\n ABORT;\n if (!BN_rshift1(y, y))\n ABORT;\n scalars[0] = y;\n scalars[1] = y;\n fprintf(stdout, "combined multiplication ...");\n fflush(stdout);\n if (!EC_POINTs_mul(group, P, NULL, 2, points, scalars, ctx))\n ABORT;\n if (!EC_POINTs_mul(group, R, z, 2, points, scalars, ctx))\n ABORT;\n if (0 != EC_POINT_cmp(group, P, R, ctx))\n ABORT;\n if (0 != EC_POINT_cmp(group, R, Q, ctx))\n ABORT;\n fprintf(stdout, ".");\n fflush(stdout);\n if (!BN_pseudo_rand(y, BN_num_bits(y), 0, 0))\n ABORT;\n if (!BN_add(z, z, y))\n ABORT;\n BN_set_negative(z, 1);\n scalars[0] = y;\n scalars[1] = z;\n if (!EC_POINTs_mul(group, P, NULL, 2, points, scalars, ctx))\n ABORT;\n if (!EC_POINT_is_at_infinity(group, P))\n ABORT;\n fprintf(stdout, ".");\n fflush(stdout);\n if (!BN_pseudo_rand(x, BN_num_bits(y) - 1, 0, 0))\n ABORT;\n if (!BN_add(z, x, y))\n ABORT;\n BN_set_negative(z, 1);\n scalars[0] = x;\n scalars[1] = y;\n scalars[2] = z;\n scalar3 = BN_new();\n if (!scalar3)\n ABORT;\n BN_zero(scalar3);\n scalars[3] = scalar3;\n if (!EC_POINTs_mul(group, P, NULL, 4, points, scalars, ctx))\n ABORT;\n if (!EC_POINT_is_at_infinity(group, P))\n ABORT;\n fprintf(stdout, " ok\\n\\n");\n BN_free(scalar3);\n }\n BN_CTX_free(ctx);\n BN_free(p);\n BN_free(a);\n BN_free(b);\n EC_GROUP_free(group);\n EC_POINT_free(P);\n EC_POINT_free(Q);\n EC_POINT_free(R);\n BN_free(x);\n BN_free(y);\n BN_free(z);\n EC_GROUP_free(P_160);\n EC_GROUP_free(P_192);\n EC_GROUP_free(P_224);\n EC_GROUP_free(P_256);\n EC_GROUP_free(P_384);\n EC_GROUP_free(P_521);\n}', 'BN_CTX *BN_CTX_new(void)\n{\n BN_CTX *ret;\n if ((ret = OPENSSL_zalloc(sizeof(*ret))) == NULL) {\n BNerr(BN_F_BN_CTX_NEW, ERR_R_MALLOC_FAILURE);\n return NULL;\n }\n BN_POOL_init(&ret->pool);\n BN_STACK_init(&ret->stack);\n return ret;\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}', 'static void BN_POOL_init(BN_POOL *p)\n{\n p->head = p->current = p->tail = NULL;\n p->used = p->size = 0;\n}', 'static void BN_STACK_init(BN_STACK *st)\n{\n st->indexes = NULL;\n st->depth = st->size = 0;\n}', 'BIGNUM *BN_new(void)\n{\n BIGNUM *ret;\n if ((ret = OPENSSL_zalloc(sizeof(*ret))) == NULL) {\n BNerr(BN_F_BN_NEW, ERR_R_MALLOC_FAILURE);\n return (NULL);\n }\n ret->flags = BN_FLG_MALLOCED;\n bn_check_top(ret);\n return (ret);\n}'] |
26,992 | 0 | https://github.com/openssl/openssl/blob/9c46f4b9cd4912b61cb546c48b678488d7f26ed6/crypto/idea/i_skey.c/#L92 | void idea_set_encrypt_key(const unsigned char *key, IDEA_KEY_SCHEDULE *ks)
{
int i;
register IDEA_INT *kt, *kf, r0, r1, r2;
kt = &(ks->data[0][0]);
n2s(key, kt[0]);
n2s(key, kt[1]);
n2s(key, kt[2]);
n2s(key, kt[3]);
n2s(key, kt[4]);
n2s(key, kt[5]);
n2s(key, kt[6]);
n2s(key, kt[7]);
kf = kt;
kt += 8;
for (i = 0; i < 6; i++) {
r2 = kf[1];
r1 = kf[2];
*(kt++) = ((r2 << 9) | (r1 >> 7)) & 0xffff;
r0 = kf[3];
*(kt++) = ((r1 << 9) | (r0 >> 7)) & 0xffff;
r1 = kf[4];
*(kt++) = ((r0 << 9) | (r1 >> 7)) & 0xffff;
r0 = kf[5];
*(kt++) = ((r1 << 9) | (r0 >> 7)) & 0xffff;
r1 = kf[6];
*(kt++) = ((r0 << 9) | (r1 >> 7)) & 0xffff;
r0 = kf[7];
*(kt++) = ((r1 << 9) | (r0 >> 7)) & 0xffff;
r1 = kf[0];
if (i >= 5)
break;
*(kt++) = ((r0 << 9) | (r1 >> 7)) & 0xffff;
*(kt++) = ((r1 << 9) | (r2 >> 7)) & 0xffff;
kf += 8;
}
} | ['void idea_set_encrypt_key(const unsigned char *key, IDEA_KEY_SCHEDULE *ks)\n{\n int i;\n register IDEA_INT *kt, *kf, r0, r1, r2;\n kt = &(ks->data[0][0]);\n n2s(key, kt[0]);\n n2s(key, kt[1]);\n n2s(key, kt[2]);\n n2s(key, kt[3]);\n n2s(key, kt[4]);\n n2s(key, kt[5]);\n n2s(key, kt[6]);\n n2s(key, kt[7]);\n kf = kt;\n kt += 8;\n for (i = 0; i < 6; i++) {\n r2 = kf[1];\n r1 = kf[2];\n *(kt++) = ((r2 << 9) | (r1 >> 7)) & 0xffff;\n r0 = kf[3];\n *(kt++) = ((r1 << 9) | (r0 >> 7)) & 0xffff;\n r1 = kf[4];\n *(kt++) = ((r0 << 9) | (r1 >> 7)) & 0xffff;\n r0 = kf[5];\n *(kt++) = ((r1 << 9) | (r0 >> 7)) & 0xffff;\n r1 = kf[6];\n *(kt++) = ((r0 << 9) | (r1 >> 7)) & 0xffff;\n r0 = kf[7];\n *(kt++) = ((r1 << 9) | (r0 >> 7)) & 0xffff;\n r1 = kf[0];\n if (i >= 5)\n break;\n *(kt++) = ((r0 << 9) | (r1 >> 7)) & 0xffff;\n *(kt++) = ((r1 << 9) | (r2 >> 7)) & 0xffff;\n kf += 8;\n }\n}'] |
26,993 | 0 | https://github.com/libav/libav/blob/4601e76a4323deec30cc6b1d2cf1f192feedccbc/ffmpeg.c/#L3345 | 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;
AVFormatParameters params, *ap = ¶ms;
if (!strcmp(filename, "-"))
filename = "pipe:";
oc = avformat_alloc_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);
av_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)) {
int err = read_ffserver_streams(oc, filename);
if (err < 0) {
print_error(filename, err);
av_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;
for(; metadata_count>0; metadata_count--){
av_metadata_set(&oc->metadata, metadata[metadata_count-1].key,
metadata[metadata_count-1].value);
}
av_metadata_conv(oc, oc->oformat->metadata_conv, NULL);
}
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);
av_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)) {
if (!using_stdin) {
fprintf(stderr,"File '%s' already exists. Overwrite ? [y/N] ", filename);
fflush(stderr);
if (!read_yesno()) {
fprintf(stderr, "Not overwriting - exiting\n");
av_exit(1);
}
}
else {
fprintf(stderr,"File '%s' already exists. Exiting.\n", filename);
av_exit(1);
}
}
}
if (url_fopen(&oc->pb, filename, URL_WRONLY) < 0) {
fprintf(stderr, "Could not open '%s'\n", filename);
av_exit(1);
}
}
memset(ap, 0, sizeof(*ap));
if (av_set_parameters(oc, ap) < 0) {
fprintf(stderr, "%s: Invalid encoding parameters\n",
oc->filename);
av_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;
oc->flags |= AVFMT_FLAG_NONBLOCK;
set_context_opts(oc, avformat_opts, AV_OPT_FLAG_ENCODING_PARAM);
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;\n AVFormatParameters params, *ap = ¶ms;\n if (!strcmp(filename, "-"))\n filename = "pipe:";\n oc = avformat_alloc_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 av_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 int err = read_ffserver_streams(oc, filename);\n if (err < 0) {\n print_error(filename, err);\n av_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 for(; metadata_count>0; metadata_count--){\n av_metadata_set(&oc->metadata, metadata[metadata_count-1].key,\n metadata[metadata_count-1].value);\n }\n av_metadata_conv(oc, oc->oformat->metadata_conv, NULL);\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 av_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 if (!using_stdin) {\n fprintf(stderr,"File \'%s\' already exists. Overwrite ? [y/N] ", filename);\n fflush(stderr);\n if (!read_yesno()) {\n fprintf(stderr, "Not overwriting - exiting\\n");\n av_exit(1);\n }\n }\n else {\n fprintf(stderr,"File \'%s\' already exists. Exiting.\\n", filename);\n av_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 av_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 av_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 oc->flags |= AVFMT_FLAG_NONBLOCK;\n set_context_opts(oc, avformat_opts, AV_OPT_FLAG_ENCODING_PARAM);\n file_oformat = NULL;\n file_iformat = NULL;\n}', 'AVFormatContext *avformat_alloc_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 = 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}', '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}'] |
26,994 | 0 | https://github.com/libav/libav/blob/556f8a066cb33241bf29e85d7e24c9acf7ea9043/ffmpeg.c/#L4255 | static int opt_preset(const char *opt, const char *arg)
{
FILE *f=NULL;
char filename[1000], tmp[1000], tmp2[1000], line[1000];
char *codec_name = *opt == 'v' ? video_codec_name :
*opt == 'a' ? audio_codec_name :
subtitle_codec_name;
if (!(f = get_preset_file(filename, sizeof(filename), arg, *opt == 'f', codec_name))) {
fprintf(stderr, "File for preset '%s' not found\n", arg);
ffmpeg_exit(1);
}
while(!feof(f)){
int e= fscanf(f, "%999[^\n]\n", line) - 1;
if(line[0] == '#' && !e)
continue;
e|= sscanf(line, "%999[^=]=%999[^\n]\n", tmp, tmp2) - 2;
if(e){
fprintf(stderr, "%s: Invalid syntax: '%s'\n", filename, line);
ffmpeg_exit(1);
}
if(!strcmp(tmp, "acodec")){
opt_audio_codec(tmp, tmp2);
}else if(!strcmp(tmp, "vcodec")){
opt_video_codec(tmp, tmp2);
}else if(!strcmp(tmp, "scodec")){
opt_subtitle_codec(tmp, tmp2);
}else if(!strcmp(tmp, "dcodec")){
opt_data_codec(tmp, tmp2);
}else if(opt_default(tmp, tmp2) < 0){
fprintf(stderr, "%s: Invalid option or argument: '%s', parsed as '%s' = '%s'\n", filename, line, tmp, tmp2);
ffmpeg_exit(1);
}
}
fclose(f);
return 0;
} | ['static int opt_preset(const char *opt, const char *arg)\n{\n FILE *f=NULL;\n char filename[1000], tmp[1000], tmp2[1000], line[1000];\n char *codec_name = *opt == \'v\' ? video_codec_name :\n *opt == \'a\' ? audio_codec_name :\n subtitle_codec_name;\n if (!(f = get_preset_file(filename, sizeof(filename), arg, *opt == \'f\', codec_name))) {\n fprintf(stderr, "File for preset \'%s\' not found\\n", arg);\n ffmpeg_exit(1);\n }\n while(!feof(f)){\n int e= fscanf(f, "%999[^\\n]\\n", line) - 1;\n if(line[0] == \'#\' && !e)\n continue;\n e|= sscanf(line, "%999[^=]=%999[^\\n]\\n", tmp, tmp2) - 2;\n if(e){\n fprintf(stderr, "%s: Invalid syntax: \'%s\'\\n", filename, line);\n ffmpeg_exit(1);\n }\n if(!strcmp(tmp, "acodec")){\n opt_audio_codec(tmp, tmp2);\n }else if(!strcmp(tmp, "vcodec")){\n opt_video_codec(tmp, tmp2);\n }else if(!strcmp(tmp, "scodec")){\n opt_subtitle_codec(tmp, tmp2);\n }else if(!strcmp(tmp, "dcodec")){\n opt_data_codec(tmp, tmp2);\n }else if(opt_default(tmp, tmp2) < 0){\n fprintf(stderr, "%s: Invalid option or argument: \'%s\', parsed as \'%s\' = \'%s\'\\n", filename, line, tmp, tmp2);\n ffmpeg_exit(1);\n }\n }\n fclose(f);\n return 0;\n}'] |
26,995 | 0 | https://github.com/libav/libav/blob/8eeacf31c5ea37baf6b222dc38d20cf4fd33c455/libavformat/mpegts.c/#L700 | static int read_sl_header(PESContext *pes, SLConfigDescr *sl, const uint8_t *buf, int buf_size)
{
GetBitContext gb;
int au_start_flag = 0, au_end_flag = 0, ocr_flag = 0, idle_flag = 0;
int padding_flag = 0, padding_bits = 0, inst_bitrate_flag = 0;
int dts_flag = -1, cts_flag = -1;
int64_t dts = AV_NOPTS_VALUE, cts = AV_NOPTS_VALUE;
init_get_bits(&gb, buf, buf_size*8);
if (sl->use_au_start)
au_start_flag = get_bits1(&gb);
if (sl->use_au_end)
au_end_flag = get_bits1(&gb);
if (!sl->use_au_start && !sl->use_au_end)
au_start_flag = au_end_flag = 1;
if (sl->ocr_len > 0)
ocr_flag = get_bits1(&gb);
if (sl->use_idle)
idle_flag = get_bits1(&gb);
if (sl->use_padding)
padding_flag = get_bits1(&gb);
if (padding_flag)
padding_bits = get_bits(&gb, 3);
if (!idle_flag && (!padding_flag || padding_bits != 0)) {
if (sl->packet_seq_num_len)
skip_bits_long(&gb, sl->packet_seq_num_len);
if (sl->degr_prior_len)
if (get_bits1(&gb))
skip_bits(&gb, sl->degr_prior_len);
if (ocr_flag)
skip_bits_long(&gb, sl->ocr_len);
if (au_start_flag) {
if (sl->use_rand_acc_pt)
get_bits1(&gb);
if (sl->au_seq_num_len > 0)
skip_bits_long(&gb, sl->au_seq_num_len);
if (sl->use_timestamps) {
dts_flag = get_bits1(&gb);
cts_flag = get_bits1(&gb);
}
}
if (sl->inst_bitrate_len)
inst_bitrate_flag = get_bits1(&gb);
if (dts_flag == 1)
dts = get_bits64(&gb, sl->timestamp_len);
if (cts_flag == 1)
cts = get_bits64(&gb, sl->timestamp_len);
if (sl->au_len > 0)
skip_bits_long(&gb, sl->au_len);
if (inst_bitrate_flag)
skip_bits_long(&gb, sl->inst_bitrate_len);
}
if (dts != AV_NOPTS_VALUE)
pes->dts = dts;
if (cts != AV_NOPTS_VALUE)
pes->pts = cts;
if (sl->timestamp_len && sl->timestamp_res)
avpriv_set_pts_info(pes->st, sl->timestamp_len, 1, sl->timestamp_res);
return (get_bits_count(&gb) + 7) >> 3;
} | ['static int read_sl_header(PESContext *pes, SLConfigDescr *sl, const uint8_t *buf, int buf_size)\n{\n GetBitContext gb;\n int au_start_flag = 0, au_end_flag = 0, ocr_flag = 0, idle_flag = 0;\n int padding_flag = 0, padding_bits = 0, inst_bitrate_flag = 0;\n int dts_flag = -1, cts_flag = -1;\n int64_t dts = AV_NOPTS_VALUE, cts = AV_NOPTS_VALUE;\n init_get_bits(&gb, buf, buf_size*8);\n if (sl->use_au_start)\n au_start_flag = get_bits1(&gb);\n if (sl->use_au_end)\n au_end_flag = get_bits1(&gb);\n if (!sl->use_au_start && !sl->use_au_end)\n au_start_flag = au_end_flag = 1;\n if (sl->ocr_len > 0)\n ocr_flag = get_bits1(&gb);\n if (sl->use_idle)\n idle_flag = get_bits1(&gb);\n if (sl->use_padding)\n padding_flag = get_bits1(&gb);\n if (padding_flag)\n padding_bits = get_bits(&gb, 3);\n if (!idle_flag && (!padding_flag || padding_bits != 0)) {\n if (sl->packet_seq_num_len)\n skip_bits_long(&gb, sl->packet_seq_num_len);\n if (sl->degr_prior_len)\n if (get_bits1(&gb))\n skip_bits(&gb, sl->degr_prior_len);\n if (ocr_flag)\n skip_bits_long(&gb, sl->ocr_len);\n if (au_start_flag) {\n if (sl->use_rand_acc_pt)\n get_bits1(&gb);\n if (sl->au_seq_num_len > 0)\n skip_bits_long(&gb, sl->au_seq_num_len);\n if (sl->use_timestamps) {\n dts_flag = get_bits1(&gb);\n cts_flag = get_bits1(&gb);\n }\n }\n if (sl->inst_bitrate_len)\n inst_bitrate_flag = get_bits1(&gb);\n if (dts_flag == 1)\n dts = get_bits64(&gb, sl->timestamp_len);\n if (cts_flag == 1)\n cts = get_bits64(&gb, sl->timestamp_len);\n if (sl->au_len > 0)\n skip_bits_long(&gb, sl->au_len);\n if (inst_bitrate_flag)\n skip_bits_long(&gb, sl->inst_bitrate_len);\n }\n if (dts != AV_NOPTS_VALUE)\n pes->dts = dts;\n if (cts != AV_NOPTS_VALUE)\n pes->pts = cts;\n if (sl->timestamp_len && sl->timestamp_res)\n avpriv_set_pts_info(pes->st, sl->timestamp_len, 1, sl->timestamp_res);\n return (get_bits_count(&gb) + 7) >> 3;\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 buffer_size = 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}', 'static inline unsigned int get_bits1(GetBitContext *s)\n{\n unsigned int index = s->index;\n uint8_t result = s->buffer[index >> 3];\n#ifdef BITSTREAM_READER_LE\n result >>= index & 7;\n result &= 1;\n#else\n result <<= index & 7;\n result >>= 8 - 1;\n#endif\n#if !UNCHECKED_BITSTREAM_READER\n if (s->index < s->size_in_bits_plus8)\n#endif\n index++;\n s->index = index;\n return result;\n}'] |
26,996 | 0 | https://github.com/openssl/openssl/blob/18e1e302452e6dea4500b6f981cee7e151294dea/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}', 'BIGNUM *BN_CTX_get(BN_CTX *ctx)\n{\n BIGNUM *ret;\n CTXDBG("ENTER 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("LEAVE BN_CTX_get()", ctx);\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}', '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_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}'] |
26,997 | 0 | https://github.com/openssl/openssl/blob/9c46f4b9cd4912b61cb546c48b678488d7f26ed6/crypto/bn/bn_lib.c/#L564 | BIGNUM *BN_bin2bn(const unsigned char *s, int len, BIGNUM *ret)
{
unsigned int i, m;
unsigned int n;
BN_ULONG l;
BIGNUM *bn = NULL;
if (ret == NULL)
ret = bn = BN_new();
if (ret == NULL)
return (NULL);
bn_check_top(ret);
l = 0;
n = len;
if (n == 0) {
ret->top = 0;
return (ret);
}
i = ((n - 1) / BN_BYTES) + 1;
m = ((n - 1) % (BN_BYTES));
if (bn_wexpand(ret, (int)i) == NULL) {
if (bn)
BN_free(bn);
return NULL;
}
ret->top = i;
ret->neg = 0;
while (n--) {
l = (l << 8L) | *(s++);
if (m-- == 0) {
ret->d[--i] = l;
l = 0;
m = BN_BYTES - 1;
}
}
bn_correct_top(ret);
return (ret);
} | ['static EVP_PKEY *b2i_rsa(const unsigned char **in, unsigned int length,\n unsigned int bitlen, int ispub)\n{\n const unsigned char *p = *in;\n EVP_PKEY *ret = NULL;\n RSA *rsa = NULL;\n unsigned int nbyte, hnbyte;\n nbyte = (bitlen + 7) >> 3;\n hnbyte = (bitlen + 15) >> 4;\n rsa = RSA_new();\n ret = EVP_PKEY_new();\n if (!rsa || !ret)\n goto memerr;\n rsa->e = BN_new();\n if (!rsa->e)\n goto memerr;\n if (!BN_set_word(rsa->e, read_ledword(&p)))\n goto memerr;\n if (!read_lebn(&p, nbyte, &rsa->n))\n goto memerr;\n if (!ispub) {\n if (!read_lebn(&p, hnbyte, &rsa->p))\n goto memerr;\n if (!read_lebn(&p, hnbyte, &rsa->q))\n goto memerr;\n if (!read_lebn(&p, hnbyte, &rsa->dmp1))\n goto memerr;\n if (!read_lebn(&p, hnbyte, &rsa->dmq1))\n goto memerr;\n if (!read_lebn(&p, hnbyte, &rsa->iqmp))\n goto memerr;\n if (!read_lebn(&p, nbyte, &rsa->d))\n goto memerr;\n }\n EVP_PKEY_set1_RSA(ret, rsa);\n RSA_free(rsa);\n *in = p;\n return ret;\n memerr:\n PEMerr(PEM_F_B2I_RSA, ERR_R_MALLOC_FAILURE);\n if (rsa)\n RSA_free(rsa);\n if (ret)\n EVP_PKEY_free(ret);\n return NULL;\n}', 'static int read_lebn(const unsigned char **in, unsigned int nbyte, BIGNUM **r)\n{\n const unsigned char *p;\n unsigned char *tmpbuf, *q;\n unsigned int i;\n p = *in + nbyte - 1;\n tmpbuf = OPENSSL_malloc(nbyte);\n if (!tmpbuf)\n return 0;\n q = tmpbuf;\n for (i = 0; i < nbyte; i++)\n *q++ = *p--;\n *r = BN_bin2bn(tmpbuf, nbyte, NULL);\n OPENSSL_free(tmpbuf);\n if (*r) {\n *in += nbyte;\n return 1;\n } else\n return 0;\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 l = 0;\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 if (bn)\n BN_free(bn);\n return NULL;\n }\n ret->top = i;\n ret->neg = 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}'] |
26,998 | 0 | https://github.com/libav/libav/blob/b42c483f076e4b24fdeada59e138e421326c45ec/libavfilter/avfilter.c/#L77 | void avfilter_unref_buffer(AVFilterBufferRef *ref)
{
if (!(--ref->buf->refcount))
ref->buf->free(ref->buf);
av_free(ref->video);
av_free(ref->audio);
av_free(ref);
} | ['static int output_packet(AVInputStream *ist, int ist_index,\n AVOutputStream **ost_table, int nb_ostreams,\n const AVPacket *pkt)\n{\n AVFormatContext *os;\n AVOutputStream *ost;\n int ret, i;\n int got_picture;\n AVFrame picture;\n void *buffer_to_free;\n static unsigned int samples_size= 0;\n AVSubtitle subtitle, *subtitle_to_free;\n#if CONFIG_AVFILTER\n int frame_available;\n#endif\n AVPacket avpkt;\n int bps = av_get_bits_per_sample_format(ist->st->codec->sample_fmt)>>3;\n if(ist->next_pts == AV_NOPTS_VALUE)\n ist->next_pts= ist->pts;\n if (pkt == NULL) {\n av_init_packet(&avpkt);\n avpkt.data = NULL;\n avpkt.size = 0;\n goto handle_eof;\n } else {\n avpkt = *pkt;\n }\n if(pkt->dts != AV_NOPTS_VALUE)\n ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);\n while (avpkt.size > 0 || (!pkt && ist->next_pts != ist->pts)) {\n uint8_t *data_buf, *decoded_data_buf;\n int data_size, decoded_data_size;\n handle_eof:\n ist->pts= ist->next_pts;\n if(avpkt.size && avpkt.size != pkt->size &&\n ((!ist->showed_multi_packet_warning && verbose>0) || verbose>1)){\n fprintf(stderr, "Multiple frames in a packet from stream %d\\n", pkt->stream_index);\n ist->showed_multi_packet_warning=1;\n }\n decoded_data_buf = NULL;\n decoded_data_size= 0;\n data_buf = avpkt.data;\n data_size = avpkt.size;\n subtitle_to_free = NULL;\n if (ist->decoding_needed) {\n switch(ist->st->codec->codec_type) {\n case AVMEDIA_TYPE_AUDIO:{\n if(pkt && samples_size < FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE)) {\n samples_size = FFMAX(pkt->size*sizeof(*samples), AVCODEC_MAX_AUDIO_FRAME_SIZE);\n av_free(samples);\n samples= av_malloc(samples_size);\n }\n decoded_data_size= samples_size;\n ret = avcodec_decode_audio3(ist->st->codec, samples, &decoded_data_size,\n &avpkt);\n if (ret < 0)\n goto fail_decode;\n avpkt.data += ret;\n avpkt.size -= ret;\n data_size = ret;\n if (decoded_data_size <= 0) {\n continue;\n }\n decoded_data_buf = (uint8_t *)samples;\n ist->next_pts += ((int64_t)AV_TIME_BASE/bps * decoded_data_size) /\n (ist->st->codec->sample_rate * ist->st->codec->channels);\n break;}\n case AVMEDIA_TYPE_VIDEO:\n decoded_data_size = (ist->st->codec->width * ist->st->codec->height * 3) / 2;\n avcodec_get_frame_defaults(&picture);\n ret = avcodec_decode_video2(ist->st->codec,\n &picture, &got_picture, &avpkt);\n ist->st->quality= picture.quality;\n if (ret < 0)\n goto fail_decode;\n if (!got_picture) {\n goto discard_packet;\n }\n if (ist->st->codec->time_base.num != 0) {\n int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;\n ist->next_pts += ((int64_t)AV_TIME_BASE *\n ist->st->codec->time_base.num * ticks) /\n ist->st->codec->time_base.den;\n }\n avpkt.size = 0;\n break;\n case AVMEDIA_TYPE_SUBTITLE:\n ret = avcodec_decode_subtitle2(ist->st->codec,\n &subtitle, &got_picture, &avpkt);\n if (ret < 0)\n goto fail_decode;\n if (!got_picture) {\n goto discard_packet;\n }\n subtitle_to_free = &subtitle;\n avpkt.size = 0;\n break;\n default:\n goto fail_decode;\n }\n } else {\n switch(ist->st->codec->codec_type) {\n case AVMEDIA_TYPE_AUDIO:\n ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /\n ist->st->codec->sample_rate;\n break;\n case AVMEDIA_TYPE_VIDEO:\n if (ist->st->codec->time_base.num != 0) {\n int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;\n ist->next_pts += ((int64_t)AV_TIME_BASE *\n ist->st->codec->time_base.num * ticks) /\n ist->st->codec->time_base.den;\n }\n break;\n }\n ret = avpkt.size;\n avpkt.size = 0;\n }\n buffer_to_free = NULL;\n if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {\n pre_process_video_frame(ist, (AVPicture *)&picture,\n &buffer_to_free);\n }\n#if CONFIG_AVFILTER\n if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && ist->input_video_filter) {\n av_vsrc_buffer_add_frame(ist->input_video_filter, &picture,\n ist->pts,\n ist->st->codec->sample_aspect_ratio);\n }\n#endif\n if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {\n if (audio_volume != 256) {\n short *volp;\n volp = samples;\n for(i=0;i<(decoded_data_size / sizeof(short));i++) {\n int v = ((*volp) * audio_volume + 128) >> 8;\n if (v < -32768) v = -32768;\n if (v > 32767) v = 32767;\n *volp++ = v;\n }\n }\n }\n if (rate_emu) {\n int64_t pts = av_rescale(ist->pts, 1000000, AV_TIME_BASE);\n int64_t now = av_gettime() - ist->start;\n if (pts > now)\n usleep(pts - now);\n }\n#if CONFIG_AVFILTER\n frame_available = ist->st->codec->codec_type != AVMEDIA_TYPE_VIDEO ||\n !ist->out_video_filter || avfilter_poll_frame(ist->out_video_filter->inputs[0]);\n#endif\n if (start_time == 0 || ist->pts >= start_time)\n#if CONFIG_AVFILTER\n while (frame_available) {\n if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && ist->out_video_filter)\n get_filtered_video_pic(ist->out_video_filter, &ist->picref, &picture, &ist->pts);\n#endif\n for(i=0;i<nb_ostreams;i++) {\n int frame_size;\n ost = ost_table[i];\n if (ost->source_index == ist_index) {\n os = output_files[ost->file_index];\n if (ost->encoding_needed) {\n assert(ist->decoding_needed);\n switch(ost->st->codec->codec_type) {\n case AVMEDIA_TYPE_AUDIO:\n do_audio_out(os, ost, ist, decoded_data_buf, decoded_data_size);\n break;\n case AVMEDIA_TYPE_VIDEO:\n#if CONFIG_AVFILTER\n if (ist->picref->video)\n ost->st->codec->sample_aspect_ratio = ist->picref->video->pixel_aspect;\n#endif\n do_video_out(os, ost, ist, &picture, &frame_size);\n if (vstats_filename && frame_size)\n do_video_stats(os, ost, frame_size);\n break;\n case AVMEDIA_TYPE_SUBTITLE:\n do_subtitle_out(os, ost, ist, &subtitle,\n pkt->pts);\n break;\n default:\n abort();\n }\n } else {\n AVFrame avframe;\n AVPacket opkt;\n int64_t ost_tb_start_time= av_rescale_q(start_time, AV_TIME_BASE_Q, ost->st->time_base);\n av_init_packet(&opkt);\n if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) && !copy_initial_nonkeyframes)\n continue;\n avcodec_get_frame_defaults(&avframe);\n ost->st->codec->coded_frame= &avframe;\n avframe.key_frame = pkt->flags & AV_PKT_FLAG_KEY;\n if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)\n audio_size += data_size;\n else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {\n video_size += data_size;\n ost->sync_opts++;\n }\n opkt.stream_index= ost->index;\n if(pkt->pts != AV_NOPTS_VALUE)\n opkt.pts= av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;\n else\n opkt.pts= AV_NOPTS_VALUE;\n if (pkt->dts == AV_NOPTS_VALUE)\n opkt.dts = av_rescale_q(ist->pts, AV_TIME_BASE_Q, ost->st->time_base);\n else\n opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);\n opkt.dts -= ost_tb_start_time;\n opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);\n opkt.flags= pkt->flags;\n if( ost->st->codec->codec_id != CODEC_ID_H264\n && ost->st->codec->codec_id != CODEC_ID_MPEG1VIDEO\n && ost->st->codec->codec_id != CODEC_ID_MPEG2VIDEO\n ) {\n if(av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, data_buf, data_size, pkt->flags & AV_PKT_FLAG_KEY))\n opkt.destruct= av_destruct_packet;\n } else {\n opkt.data = data_buf;\n opkt.size = data_size;\n }\n write_frame(os, &opkt, ost->st->codec, bitstream_filters[ost->file_index][opkt.stream_index]);\n ost->st->codec->frame_number++;\n ost->frame_number++;\n av_free_packet(&opkt);\n }\n }\n }\n#if CONFIG_AVFILTER\n frame_available = (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) &&\n ist->out_video_filter && avfilter_poll_frame(ist->out_video_filter->inputs[0]);\n if(ist->picref)\n avfilter_unref_buffer(ist->picref);\n }\n#endif\n av_free(buffer_to_free);\n if (subtitle_to_free) {\n if (subtitle_to_free->rects != NULL) {\n for (i = 0; i < subtitle_to_free->num_rects; i++) {\n av_freep(&subtitle_to_free->rects[i]->pict.data[0]);\n av_freep(&subtitle_to_free->rects[i]->pict.data[1]);\n av_freep(&subtitle_to_free->rects[i]);\n }\n av_freep(&subtitle_to_free->rects);\n }\n subtitle_to_free->num_rects = 0;\n subtitle_to_free = NULL;\n }\n }\n discard_packet:\n if (pkt == NULL) {\n for(i=0;i<nb_ostreams;i++) {\n ost = ost_table[i];\n if (ost->source_index == ist_index) {\n AVCodecContext *enc= ost->st->codec;\n os = output_files[ost->file_index];\n if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <=1)\n continue;\n if(ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE))\n continue;\n if (ost->encoding_needed) {\n for(;;) {\n AVPacket pkt;\n int fifo_bytes;\n av_init_packet(&pkt);\n pkt.stream_index= ost->index;\n switch(ost->st->codec->codec_type) {\n case AVMEDIA_TYPE_AUDIO:\n fifo_bytes = av_fifo_size(ost->fifo);\n ret = 0;\n if (fifo_bytes > 0) {\n int osize = av_get_bits_per_sample_format(enc->sample_fmt) >> 3;\n int fs_tmp = enc->frame_size;\n av_fifo_generic_read(ost->fifo, audio_buf, fifo_bytes, NULL);\n if (enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {\n enc->frame_size = fifo_bytes / (osize * enc->channels);\n } else {\n int frame_bytes = enc->frame_size*osize*enc->channels;\n if (allocated_audio_buf_size < frame_bytes)\n ffmpeg_exit(1);\n memset(audio_buf+fifo_bytes, 0, frame_bytes - fifo_bytes);\n }\n ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, (short *)audio_buf);\n pkt.duration = av_rescale((int64_t)enc->frame_size*ost->st->time_base.den,\n ost->st->time_base.num, enc->sample_rate);\n enc->frame_size = fs_tmp;\n }\n if(ret <= 0) {\n ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, NULL);\n }\n if (ret < 0) {\n fprintf(stderr, "Audio encoding failed\\n");\n ffmpeg_exit(1);\n }\n audio_size += ret;\n pkt.flags |= AV_PKT_FLAG_KEY;\n break;\n case AVMEDIA_TYPE_VIDEO:\n ret = avcodec_encode_video(enc, bit_buffer, bit_buffer_size, NULL);\n if (ret < 0) {\n fprintf(stderr, "Video encoding failed\\n");\n ffmpeg_exit(1);\n }\n video_size += ret;\n if(enc->coded_frame && enc->coded_frame->key_frame)\n pkt.flags |= AV_PKT_FLAG_KEY;\n if (ost->logfile && enc->stats_out) {\n fprintf(ost->logfile, "%s", enc->stats_out);\n }\n break;\n default:\n ret=-1;\n }\n if(ret<=0)\n break;\n pkt.data= bit_buffer;\n pkt.size= ret;\n if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)\n pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);\n write_frame(os, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);\n }\n }\n }\n }\n }\n return 0;\n fail_decode:\n return -1;\n}', 'void avfilter_unref_buffer(AVFilterBufferRef *ref)\n{\n if (!(--ref->buf->refcount))\n ref->buf->free(ref->buf);\n av_free(ref->video);\n av_free(ref->audio);\n av_free(ref);\n}'] |
26,999 | 0 | https://github.com/openssl/openssl/blob/8da94770f0a049497b1a52ee469cca1f4a13b1a7/crypto/bn/bn_lib.c/#L536 | 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_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}', '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_pseudo_rand_range(BIGNUM *r, const BIGNUM *range)\n{\n return bn_rand_range(1, r, range);\n}', 'static int bn_rand_range(int pseudo, BIGNUM *r, const BIGNUM *range)\n{\n int (*bn_rand) (BIGNUM *, int, int, int) =\n pseudo ? BN_pseudo_rand : BN_rand;\n int n;\n int count = 100;\n if (range->neg || BN_is_zero(range)) {\n BNerr(BN_F_BN_RAND_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 if (!bn_rand(r, n + 1, -1, 0))\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_BN_RAND_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, -1, 0))\n return 0;\n if (!--count) {\n BNerr(BN_F_BN_RAND_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}'] |
27,000 | 0 | https://github.com/openssl/openssl/blob/09977dd095f3c655c99b9e1810a213f7eafa7364/crypto/bn/bn_lib.c/#L342 | 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_zalloc(words * sizeof(*a));
else
a = A = OPENSSL_zalloc(words * sizeof(*a));
if (A == NULL) {
BNerr(BN_F_BN_EXPAND_INTERNAL, ERR_R_MALLOC_FAILURE);
return (NULL);
}
#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 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}', '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}', '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_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_zalloc(words * sizeof(*a));\n else\n a = 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#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}'] |
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