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 |
|---|---|---|---|---|
17,401 | 0 | https://github.com/openssl/openssl/blob/0bde1089f895718db2fe2637fda4a0c2ed6df904/crypto/lhash/lhash.c/#L356 | static void contract(LHASH *lh)
{
LHASH_NODE **n,*n1,*np;
np=lh->b[lh->p+lh->pmax-1];
lh->b[lh->p+lh->pmax-1]=NULL;
if (lh->p == 0)
{
n=(LHASH_NODE **)Realloc(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 SSL *doConnection(SSL *scon)\n\t{\n\tBIO *conn;\n\tSSL *serverCon;\n\tint width, i;\n\tfd_set readfds;\n\tif ((conn=BIO_new(BIO_s_connect())) == NULL)\n\t\treturn(NULL);\n\tBIO_set_conn_hostname(conn,host);\n\tif (scon == NULL)\n\t\tserverCon=(SSL *)SSL_new(tm_ctx);\n\telse\n\t\t{\n\t\tserverCon=scon;\n\t\tSSL_set_connect_state(serverCon);\n\t\t}\n\tSSL_set_bio(serverCon,conn,conn);\n#if 0\n\tif( scon != NULL )\n\t\tSSL_set_session(serverCon,SSL_get_session(scon));\n#endif\n\tfor(;;) {\n\t\ti=SSL_connect(serverCon);\n\t\tif (BIO_sock_should_retry(i))\n\t\t\t{\n\t\t\tBIO_printf(bio_err,"DELAY\\n");\n\t\t\ti=SSL_get_fd(serverCon);\n\t\t\twidth=i+1;\n\t\t\tFD_ZERO(&readfds);\n\t\t\tFD_SET(i,&readfds);\n\t\t\tselect(width,(void *)&readfds,NULL,NULL,NULL);\n\t\t\tcontinue;\n\t\t\t}\n\t\tbreak;\n\t\t}\n\tif(i <= 0)\n\t\t{\n\t\tBIO_printf(bio_err,"ERROR\\n");\n\t\tif (verify_error != X509_V_OK)\n\t\t\tBIO_printf(bio_err,"verify error:%s\\n",\n\t\t\t\tX509_verify_cert_error_string(verify_error));\n\t\telse\n\t\t\tERR_print_errors(bio_err);\n\t\tif (scon == NULL)\n\t\t\tSSL_free(serverCon);\n\t\treturn NULL;\n\t\t}\n\treturn serverCon;\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\tFree(s);\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\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, 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\tFree(nn);\n\t\tlh->num_delete++;\n\t\t}\n\tlh->num_items--;\n\tif ((lh->num_nodes > MIN_NODES) &&\n\t\t(lh->down_load >= (lh->num_items*LH_LOAD_MULT/lh->num_nodes)))\n\t\tcontract(lh);\n\treturn(ret);\n\t}', 'static void contract(LHASH *lh)\n\t{\n\tLHASH_NODE **n,*n1,*np;\n\tnp=lh->b[lh->p+lh->pmax-1];\n\tlh->b[lh->p+lh->pmax-1]=NULL;\n\tif (lh->p == 0)\n\t\t{\n\t\tn=(LHASH_NODE **)Realloc(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}'] |
17,402 | 0 | https://github.com/openssl/openssl/blob/e1dbf7f431b996010844e220d3200cbf2122dbb3/test/danetest.c/#L106 | static int verify_chain(SSL *ssl, STACK_OF(X509) *chain)
{
int ret = -1;
X509_STORE_CTX *store_ctx;
SSL_CTX *ssl_ctx = SSL_get_SSL_CTX(ssl);
X509_STORE *store = SSL_CTX_get_cert_store(ssl_ctx);
int store_ctx_idx = SSL_get_ex_data_X509_STORE_CTX_idx();
X509 *cert = sk_X509_value(chain, 0);
if ((store_ctx = X509_STORE_CTX_new()) == NULL)
return -1;
if (!X509_STORE_CTX_init(store_ctx, store, cert, chain))
goto end;
if (!X509_STORE_CTX_set_ex_data(store_ctx, store_ctx_idx, ssl))
goto end;
X509_STORE_CTX_set_default(store_ctx,
SSL_is_server(ssl) ? "ssl_client" : "ssl_server");
X509_VERIFY_PARAM_set1(X509_STORE_CTX_get0_param(store_ctx),
SSL_get0_param(ssl));
store_ctx_dane_init(store_ctx, ssl);
if (SSL_get_verify_callback(ssl))
X509_STORE_CTX_set_verify_cb(store_ctx, SSL_get_verify_callback(ssl));
ret = X509_verify_cert(store_ctx);
SSL_set_verify_result(ssl, X509_STORE_CTX_get_error(store_ctx));
X509_STORE_CTX_cleanup(store_ctx);
end:
X509_STORE_CTX_free(store_ctx);
return (ret);
} | ['static int verify_chain(SSL *ssl, STACK_OF(X509) *chain)\n{\n int ret = -1;\n X509_STORE_CTX *store_ctx;\n SSL_CTX *ssl_ctx = SSL_get_SSL_CTX(ssl);\n X509_STORE *store = SSL_CTX_get_cert_store(ssl_ctx);\n int store_ctx_idx = SSL_get_ex_data_X509_STORE_CTX_idx();\n X509 *cert = sk_X509_value(chain, 0);\n if ((store_ctx = X509_STORE_CTX_new()) == NULL)\n return -1;\n if (!X509_STORE_CTX_init(store_ctx, store, cert, chain))\n goto end;\n if (!X509_STORE_CTX_set_ex_data(store_ctx, store_ctx_idx, ssl))\n goto end;\n X509_STORE_CTX_set_default(store_ctx,\n SSL_is_server(ssl) ? "ssl_client" : "ssl_server");\n X509_VERIFY_PARAM_set1(X509_STORE_CTX_get0_param(store_ctx),\n SSL_get0_param(ssl));\n store_ctx_dane_init(store_ctx, ssl);\n if (SSL_get_verify_callback(ssl))\n X509_STORE_CTX_set_verify_cb(store_ctx, SSL_get_verify_callback(ssl));\n ret = X509_verify_cert(store_ctx);\n SSL_set_verify_result(ssl, X509_STORE_CTX_get_error(store_ctx));\n X509_STORE_CTX_cleanup(store_ctx);\nend:\n X509_STORE_CTX_free(store_ctx);\n return (ret);\n}', 'SSL_CTX *SSL_get_SSL_CTX(const SSL *ssl)\n{\n return ssl->ctx;\n}', 'X509_STORE *SSL_CTX_get_cert_store(const SSL_CTX *ctx)\n{\n return (ctx->cert_store);\n}', 'int SSL_get_ex_data_X509_STORE_CTX_idx(void)\n{\n if (!RUN_ONCE(&ssl_x509_store_ctx_once, ssl_x509_store_ctx_init))\n return -1;\n return ssl_x509_store_ctx_idx;\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}', 'DEFINE_STACK_OF(X509)', 'void *OPENSSL_sk_value(const OPENSSL_STACK *st, int i)\n{\n if (st == NULL || i < 0 || i >= st->num)\n return NULL;\n return (void *)st->data[i];\n}', 'X509_STORE_CTX *X509_STORE_CTX_new(void)\n{\n X509_STORE_CTX *ctx = OPENSSL_zalloc(sizeof(*ctx));\n if (ctx == NULL) {\n X509err(X509_F_X509_STORE_CTX_NEW, ERR_R_MALLOC_FAILURE);\n return NULL;\n }\n return ctx;\n}', 'void *CRYPTO_zalloc(size_t num, const char *file, int line)\n{\n void *ret = CRYPTO_malloc(num, file, line);\n 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 osslargused(file); osslargused(line);\n ret = malloc(num);\n#endif\n return ret;\n}', 'void X509_STORE_CTX_free(X509_STORE_CTX *ctx)\n{\n if (ctx == NULL)\n return;\n X509_STORE_CTX_cleanup(ctx);\n OPENSSL_free(ctx);\n}', 'void CRYPTO_free(void *str, const char *file, int line)\n{\n if (free_impl != NULL && free_impl != &CRYPTO_free) {\n free_impl(str, file, line);\n return;\n }\n#ifndef OPENSSL_NO_CRYPTO_MDEBUG\n if (call_malloc_debug) {\n CRYPTO_mem_debug_free(str, 0, file, line);\n free(str);\n CRYPTO_mem_debug_free(str, 1, file, line);\n } else {\n free(str);\n }\n#else\n free(str);\n#endif\n}'] |
17,403 | 0 | https://github.com/openssl/openssl/blob/9c46f4b9cd4912b61cb546c48b678488d7f26ed6/crypto/x509/x509_vfy.c/#L1725 | static int internal_verify(X509_STORE_CTX *ctx)
{
int ok = 0, n;
X509 *xs, *xi;
EVP_PKEY *pkey = NULL;
int (*cb) (int xok, X509_STORE_CTX *xctx);
cb = ctx->verify_cb;
n = sk_X509_num(ctx->chain);
ctx->error_depth = n - 1;
n--;
xi = sk_X509_value(ctx->chain, n);
if (ctx->check_issued(ctx, xi, xi))
xs = xi;
else {
if (ctx->param->flags & X509_V_FLAG_PARTIAL_CHAIN) {
xs = xi;
goto check_cert;
}
if (n <= 0) {
ctx->error = X509_V_ERR_UNABLE_TO_VERIFY_LEAF_SIGNATURE;
ctx->current_cert = xi;
ok = cb(0, ctx);
goto end;
} else {
n--;
ctx->error_depth = n;
xs = sk_X509_value(ctx->chain, n);
}
}
while (n >= 0) {
ctx->error_depth = n;
if (!xs->valid
&& (xs != xi
|| (ctx->param->flags & X509_V_FLAG_CHECK_SS_SIGNATURE))) {
if ((pkey = X509_get_pubkey(xi)) == NULL) {
ctx->error = X509_V_ERR_UNABLE_TO_DECODE_ISSUER_PUBLIC_KEY;
ctx->current_cert = xi;
ok = (*cb) (0, ctx);
if (!ok)
goto end;
} else if (X509_verify(xs, pkey) <= 0) {
ctx->error = X509_V_ERR_CERT_SIGNATURE_FAILURE;
ctx->current_cert = xs;
ok = (*cb) (0, ctx);
if (!ok) {
EVP_PKEY_free(pkey);
goto end;
}
}
EVP_PKEY_free(pkey);
pkey = NULL;
}
xs->valid = 1;
check_cert:
ok = x509_check_cert_time(ctx, xs, 0);
if (!ok)
goto end;
ctx->current_issuer = xi;
ctx->current_cert = xs;
ok = (*cb) (1, ctx);
if (!ok)
goto end;
n--;
if (n >= 0) {
xi = xs;
xs = sk_X509_value(ctx->chain, n);
}
}
ok = 1;
end:
return ok;
} | ['static int internal_verify(X509_STORE_CTX *ctx)\n{\n int ok = 0, n;\n X509 *xs, *xi;\n EVP_PKEY *pkey = NULL;\n int (*cb) (int xok, X509_STORE_CTX *xctx);\n cb = ctx->verify_cb;\n n = sk_X509_num(ctx->chain);\n ctx->error_depth = n - 1;\n n--;\n xi = sk_X509_value(ctx->chain, n);\n if (ctx->check_issued(ctx, xi, xi))\n xs = xi;\n else {\n if (ctx->param->flags & X509_V_FLAG_PARTIAL_CHAIN) {\n xs = xi;\n goto check_cert;\n }\n if (n <= 0) {\n ctx->error = X509_V_ERR_UNABLE_TO_VERIFY_LEAF_SIGNATURE;\n ctx->current_cert = xi;\n ok = cb(0, ctx);\n goto end;\n } else {\n n--;\n ctx->error_depth = n;\n xs = sk_X509_value(ctx->chain, n);\n }\n }\n while (n >= 0) {\n ctx->error_depth = n;\n if (!xs->valid\n && (xs != xi\n || (ctx->param->flags & X509_V_FLAG_CHECK_SS_SIGNATURE))) {\n if ((pkey = X509_get_pubkey(xi)) == NULL) {\n ctx->error = X509_V_ERR_UNABLE_TO_DECODE_ISSUER_PUBLIC_KEY;\n ctx->current_cert = xi;\n ok = (*cb) (0, ctx);\n if (!ok)\n goto end;\n } else if (X509_verify(xs, pkey) <= 0) {\n ctx->error = X509_V_ERR_CERT_SIGNATURE_FAILURE;\n ctx->current_cert = xs;\n ok = (*cb) (0, ctx);\n if (!ok) {\n EVP_PKEY_free(pkey);\n goto end;\n }\n }\n EVP_PKEY_free(pkey);\n pkey = NULL;\n }\n xs->valid = 1;\n check_cert:\n ok = x509_check_cert_time(ctx, xs, 0);\n if (!ok)\n goto end;\n ctx->current_issuer = xi;\n ctx->current_cert = xs;\n ok = (*cb) (1, ctx);\n if (!ok)\n goto end;\n n--;\n if (n >= 0) {\n xi = xs;\n xs = sk_X509_value(ctx->chain, n);\n }\n }\n ok = 1;\n end:\n return ok;\n}', 'int sk_num(const _STACK *st)\n{\n if (st == NULL)\n return -1;\n return st->num;\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}'] |
17,404 | 0 | https://github.com/libav/libav/blob/12f0388f9cb32016ac0dacaeca631b088b29bb96/libavcodec/wma.c/#L225 | int ff_wma_init(AVCodecContext *avctx, int flags2)
{
WMACodecContext *s = avctx->priv_data;
int i;
float bps1, high_freq;
volatile float bps;
int sample_rate1;
int coef_vlc_table;
if (avctx->sample_rate <= 0 || avctx->sample_rate > 50000 ||
avctx->channels <= 0 || avctx->channels > 2 ||
avctx->bit_rate <= 0)
return -1;
ff_fmt_convert_init(&s->fmt_conv, avctx);
avpriv_float_dsp_init(&s->fdsp, avctx->flags & CODEC_FLAG_BITEXACT);
if (avctx->codec->id == AV_CODEC_ID_WMAV1)
s->version = 1;
else
s->version = 2;
s->frame_len_bits = ff_wma_get_frame_len_bits(avctx->sample_rate,
s->version, 0);
s->next_block_len_bits = s->frame_len_bits;
s->prev_block_len_bits = s->frame_len_bits;
s->block_len_bits = s->frame_len_bits;
s->frame_len = 1 << s->frame_len_bits;
if (s->use_variable_block_len) {
int nb_max, nb;
nb = ((flags2 >> 3) & 3) + 1;
if ((avctx->bit_rate / avctx->channels) >= 32000)
nb += 2;
nb_max = s->frame_len_bits - BLOCK_MIN_BITS;
if (nb > nb_max)
nb = nb_max;
s->nb_block_sizes = nb + 1;
} else
s->nb_block_sizes = 1;
s->use_noise_coding = 1;
high_freq = avctx->sample_rate * 0.5;
sample_rate1 = avctx->sample_rate;
if (s->version == 2) {
if (sample_rate1 >= 44100)
sample_rate1 = 44100;
else if (sample_rate1 >= 22050)
sample_rate1 = 22050;
else if (sample_rate1 >= 16000)
sample_rate1 = 16000;
else if (sample_rate1 >= 11025)
sample_rate1 = 11025;
else if (sample_rate1 >= 8000)
sample_rate1 = 8000;
}
bps = (float) avctx->bit_rate /
(float) (avctx->channels * avctx->sample_rate);
s->byte_offset_bits = av_log2((int) (bps * s->frame_len / 8.0 + 0.5)) + 2;
bps1 = bps;
if (avctx->channels == 2)
bps1 = bps * 1.6;
if (sample_rate1 == 44100) {
if (bps1 >= 0.61)
s->use_noise_coding = 0;
else
high_freq = high_freq * 0.4;
} else if (sample_rate1 == 22050) {
if (bps1 >= 1.16)
s->use_noise_coding = 0;
else if (bps1 >= 0.72)
high_freq = high_freq * 0.7;
else
high_freq = high_freq * 0.6;
} else if (sample_rate1 == 16000) {
if (bps > 0.5)
high_freq = high_freq * 0.5;
else
high_freq = high_freq * 0.3;
} else if (sample_rate1 == 11025)
high_freq = high_freq * 0.7;
else if (sample_rate1 == 8000) {
if (bps <= 0.625)
high_freq = high_freq * 0.5;
else if (bps > 0.75)
s->use_noise_coding = 0;
else
high_freq = high_freq * 0.65;
} else {
if (bps >= 0.8)
high_freq = high_freq * 0.75;
else if (bps >= 0.6)
high_freq = high_freq * 0.6;
else
high_freq = high_freq * 0.5;
}
av_dlog(s->avctx, "flags2=0x%x\n", flags2);
av_dlog(s->avctx, "version=%d channels=%d sample_rate=%d bitrate=%d block_align=%d\n",
s->version, avctx->channels, avctx->sample_rate, avctx->bit_rate,
avctx->block_align);
av_dlog(s->avctx, "bps=%f bps1=%f high_freq=%f bitoffset=%d\n",
bps, bps1, high_freq, s->byte_offset_bits);
av_dlog(s->avctx, "use_noise_coding=%d use_exp_vlc=%d nb_block_sizes=%d\n",
s->use_noise_coding, s->use_exp_vlc, s->nb_block_sizes);
{
int a, b, pos, lpos, k, block_len, i, j, n;
const uint8_t *table;
if (s->version == 1)
s->coefs_start = 3;
else
s->coefs_start = 0;
for (k = 0; k < s->nb_block_sizes; k++) {
block_len = s->frame_len >> k;
if (s->version == 1) {
lpos = 0;
for (i = 0; i < 25; i++) {
a = ff_wma_critical_freqs[i];
b = avctx->sample_rate;
pos = ((block_len * 2 * a) + (b >> 1)) / b;
if (pos > block_len)
pos = block_len;
s->exponent_bands[0][i] = pos - lpos;
if (pos >= block_len) {
i++;
break;
}
lpos = pos;
}
s->exponent_sizes[0] = i;
} else {
table = NULL;
a = s->frame_len_bits - BLOCK_MIN_BITS - k;
if (a < 3) {
if (avctx->sample_rate >= 44100)
table = exponent_band_44100[a];
else if (avctx->sample_rate >= 32000)
table = exponent_band_32000[a];
else if (avctx->sample_rate >= 22050)
table = exponent_band_22050[a];
}
if (table) {
n = *table++;
for (i = 0; i < n; i++)
s->exponent_bands[k][i] = table[i];
s->exponent_sizes[k] = n;
} else {
j = 0;
lpos = 0;
for (i = 0; i < 25; i++) {
a = ff_wma_critical_freqs[i];
b = avctx->sample_rate;
pos = ((block_len * 2 * a) + (b << 1)) / (4 * b);
pos <<= 2;
if (pos > block_len)
pos = block_len;
if (pos > lpos)
s->exponent_bands[k][j++] = pos - lpos;
if (pos >= block_len)
break;
lpos = pos;
}
s->exponent_sizes[k] = j;
}
}
s->coefs_end[k] = (s->frame_len - ((s->frame_len * 9) / 100)) >> k;
s->high_band_start[k] = (int) ((block_len * 2 * high_freq) /
avctx->sample_rate + 0.5);
n = s->exponent_sizes[k];
j = 0;
pos = 0;
for (i = 0; i < n; i++) {
int start, end;
start = pos;
pos += s->exponent_bands[k][i];
end = pos;
if (start < s->high_band_start[k])
start = s->high_band_start[k];
if (end > s->coefs_end[k])
end = s->coefs_end[k];
if (end > start)
s->exponent_high_bands[k][j++] = end - start;
}
s->exponent_high_sizes[k] = j;
#if 0
tprintf(s->avctx, "%5d: coefs_end=%d high_band_start=%d nb_high_bands=%d: ",
s->frame_len >> k,
s->coefs_end[k],
s->high_band_start[k],
s->exponent_high_sizes[k]);
for (j = 0; j < s->exponent_high_sizes[k]; j++)
tprintf(s->avctx, " %d", s->exponent_high_bands[k][j]);
tprintf(s->avctx, "\n");
#endif
}
}
#ifdef TRACE
{
int i, j;
for (i = 0; i < s->nb_block_sizes; i++) {
tprintf(s->avctx, "%5d: n=%2d:",
s->frame_len >> i,
s->exponent_sizes[i]);
for (j = 0; j < s->exponent_sizes[i]; j++)
tprintf(s->avctx, " %d", s->exponent_bands[i][j]);
tprintf(s->avctx, "\n");
}
}
#endif
for (i = 0; i < s->nb_block_sizes; i++) {
ff_init_ff_sine_windows(s->frame_len_bits - i);
s->windows[i] = ff_sine_windows[s->frame_len_bits - i];
}
s->reset_block_lengths = 1;
if (s->use_noise_coding) {
if (s->use_exp_vlc)
s->noise_mult = 0.02;
else
s->noise_mult = 0.04;
#ifdef TRACE
for (i = 0; i < NOISE_TAB_SIZE; i++)
s->noise_table[i] = 1.0 * s->noise_mult;
#else
{
unsigned int seed;
float norm;
seed = 1;
norm = (1.0 / (float) (1LL << 31)) * sqrt(3) * s->noise_mult;
for (i = 0; i < NOISE_TAB_SIZE; i++) {
seed = seed * 314159 + 1;
s->noise_table[i] = (float) ((int) seed) * norm;
}
}
#endif
}
coef_vlc_table = 2;
if (avctx->sample_rate >= 32000) {
if (bps1 < 0.72)
coef_vlc_table = 0;
else if (bps1 < 1.16)
coef_vlc_table = 1;
}
s->coef_vlcs[0] = &coef_vlcs[coef_vlc_table * 2];
s->coef_vlcs[1] = &coef_vlcs[coef_vlc_table * 2 + 1];
init_coef_vlc(&s->coef_vlc[0], &s->run_table[0], &s->level_table[0],
&s->int_table[0], s->coef_vlcs[0]);
init_coef_vlc(&s->coef_vlc[1], &s->run_table[1], &s->level_table[1],
&s->int_table[1], s->coef_vlcs[1]);
return 0;
} | ['int ff_wma_init(AVCodecContext *avctx, int flags2)\n{\n WMACodecContext *s = avctx->priv_data;\n int i;\n float bps1, high_freq;\n volatile float bps;\n int sample_rate1;\n int coef_vlc_table;\n if (avctx->sample_rate <= 0 || avctx->sample_rate > 50000 ||\n avctx->channels <= 0 || avctx->channels > 2 ||\n avctx->bit_rate <= 0)\n return -1;\n ff_fmt_convert_init(&s->fmt_conv, avctx);\n avpriv_float_dsp_init(&s->fdsp, avctx->flags & CODEC_FLAG_BITEXACT);\n if (avctx->codec->id == AV_CODEC_ID_WMAV1)\n s->version = 1;\n else\n s->version = 2;\n s->frame_len_bits = ff_wma_get_frame_len_bits(avctx->sample_rate,\n s->version, 0);\n s->next_block_len_bits = s->frame_len_bits;\n s->prev_block_len_bits = s->frame_len_bits;\n s->block_len_bits = s->frame_len_bits;\n s->frame_len = 1 << s->frame_len_bits;\n if (s->use_variable_block_len) {\n int nb_max, nb;\n nb = ((flags2 >> 3) & 3) + 1;\n if ((avctx->bit_rate / avctx->channels) >= 32000)\n nb += 2;\n nb_max = s->frame_len_bits - BLOCK_MIN_BITS;\n if (nb > nb_max)\n nb = nb_max;\n s->nb_block_sizes = nb + 1;\n } else\n s->nb_block_sizes = 1;\n s->use_noise_coding = 1;\n high_freq = avctx->sample_rate * 0.5;\n sample_rate1 = avctx->sample_rate;\n if (s->version == 2) {\n if (sample_rate1 >= 44100)\n sample_rate1 = 44100;\n else if (sample_rate1 >= 22050)\n sample_rate1 = 22050;\n else if (sample_rate1 >= 16000)\n sample_rate1 = 16000;\n else if (sample_rate1 >= 11025)\n sample_rate1 = 11025;\n else if (sample_rate1 >= 8000)\n sample_rate1 = 8000;\n }\n bps = (float) avctx->bit_rate /\n (float) (avctx->channels * avctx->sample_rate);\n s->byte_offset_bits = av_log2((int) (bps * s->frame_len / 8.0 + 0.5)) + 2;\n bps1 = bps;\n if (avctx->channels == 2)\n bps1 = bps * 1.6;\n if (sample_rate1 == 44100) {\n if (bps1 >= 0.61)\n s->use_noise_coding = 0;\n else\n high_freq = high_freq * 0.4;\n } else if (sample_rate1 == 22050) {\n if (bps1 >= 1.16)\n s->use_noise_coding = 0;\n else if (bps1 >= 0.72)\n high_freq = high_freq * 0.7;\n else\n high_freq = high_freq * 0.6;\n } else if (sample_rate1 == 16000) {\n if (bps > 0.5)\n high_freq = high_freq * 0.5;\n else\n high_freq = high_freq * 0.3;\n } else if (sample_rate1 == 11025)\n high_freq = high_freq * 0.7;\n else if (sample_rate1 == 8000) {\n if (bps <= 0.625)\n high_freq = high_freq * 0.5;\n else if (bps > 0.75)\n s->use_noise_coding = 0;\n else\n high_freq = high_freq * 0.65;\n } else {\n if (bps >= 0.8)\n high_freq = high_freq * 0.75;\n else if (bps >= 0.6)\n high_freq = high_freq * 0.6;\n else\n high_freq = high_freq * 0.5;\n }\n av_dlog(s->avctx, "flags2=0x%x\\n", flags2);\n av_dlog(s->avctx, "version=%d channels=%d sample_rate=%d bitrate=%d block_align=%d\\n",\n s->version, avctx->channels, avctx->sample_rate, avctx->bit_rate,\n avctx->block_align);\n av_dlog(s->avctx, "bps=%f bps1=%f high_freq=%f bitoffset=%d\\n",\n bps, bps1, high_freq, s->byte_offset_bits);\n av_dlog(s->avctx, "use_noise_coding=%d use_exp_vlc=%d nb_block_sizes=%d\\n",\n s->use_noise_coding, s->use_exp_vlc, s->nb_block_sizes);\n {\n int a, b, pos, lpos, k, block_len, i, j, n;\n const uint8_t *table;\n if (s->version == 1)\n s->coefs_start = 3;\n else\n s->coefs_start = 0;\n for (k = 0; k < s->nb_block_sizes; k++) {\n block_len = s->frame_len >> k;\n if (s->version == 1) {\n lpos = 0;\n for (i = 0; i < 25; i++) {\n a = ff_wma_critical_freqs[i];\n b = avctx->sample_rate;\n pos = ((block_len * 2 * a) + (b >> 1)) / b;\n if (pos > block_len)\n pos = block_len;\n s->exponent_bands[0][i] = pos - lpos;\n if (pos >= block_len) {\n i++;\n break;\n }\n lpos = pos;\n }\n s->exponent_sizes[0] = i;\n } else {\n table = NULL;\n a = s->frame_len_bits - BLOCK_MIN_BITS - k;\n if (a < 3) {\n if (avctx->sample_rate >= 44100)\n table = exponent_band_44100[a];\n else if (avctx->sample_rate >= 32000)\n table = exponent_band_32000[a];\n else if (avctx->sample_rate >= 22050)\n table = exponent_band_22050[a];\n }\n if (table) {\n n = *table++;\n for (i = 0; i < n; i++)\n s->exponent_bands[k][i] = table[i];\n s->exponent_sizes[k] = n;\n } else {\n j = 0;\n lpos = 0;\n for (i = 0; i < 25; i++) {\n a = ff_wma_critical_freqs[i];\n b = avctx->sample_rate;\n pos = ((block_len * 2 * a) + (b << 1)) / (4 * b);\n pos <<= 2;\n if (pos > block_len)\n pos = block_len;\n if (pos > lpos)\n s->exponent_bands[k][j++] = pos - lpos;\n if (pos >= block_len)\n break;\n lpos = pos;\n }\n s->exponent_sizes[k] = j;\n }\n }\n s->coefs_end[k] = (s->frame_len - ((s->frame_len * 9) / 100)) >> k;\n s->high_band_start[k] = (int) ((block_len * 2 * high_freq) /\n avctx->sample_rate + 0.5);\n n = s->exponent_sizes[k];\n j = 0;\n pos = 0;\n for (i = 0; i < n; i++) {\n int start, end;\n start = pos;\n pos += s->exponent_bands[k][i];\n end = pos;\n if (start < s->high_band_start[k])\n start = s->high_band_start[k];\n if (end > s->coefs_end[k])\n end = s->coefs_end[k];\n if (end > start)\n s->exponent_high_bands[k][j++] = end - start;\n }\n s->exponent_high_sizes[k] = j;\n#if 0\n tprintf(s->avctx, "%5d: coefs_end=%d high_band_start=%d nb_high_bands=%d: ",\n s->frame_len >> k,\n s->coefs_end[k],\n s->high_band_start[k],\n s->exponent_high_sizes[k]);\n for (j = 0; j < s->exponent_high_sizes[k]; j++)\n tprintf(s->avctx, " %d", s->exponent_high_bands[k][j]);\n tprintf(s->avctx, "\\n");\n#endif\n }\n }\n#ifdef TRACE\n {\n int i, j;\n for (i = 0; i < s->nb_block_sizes; i++) {\n tprintf(s->avctx, "%5d: n=%2d:",\n s->frame_len >> i,\n s->exponent_sizes[i]);\n for (j = 0; j < s->exponent_sizes[i]; j++)\n tprintf(s->avctx, " %d", s->exponent_bands[i][j]);\n tprintf(s->avctx, "\\n");\n }\n }\n#endif\n for (i = 0; i < s->nb_block_sizes; i++) {\n ff_init_ff_sine_windows(s->frame_len_bits - i);\n s->windows[i] = ff_sine_windows[s->frame_len_bits - i];\n }\n s->reset_block_lengths = 1;\n if (s->use_noise_coding) {\n if (s->use_exp_vlc)\n s->noise_mult = 0.02;\n else\n s->noise_mult = 0.04;\n#ifdef TRACE\n for (i = 0; i < NOISE_TAB_SIZE; i++)\n s->noise_table[i] = 1.0 * s->noise_mult;\n#else\n {\n unsigned int seed;\n float norm;\n seed = 1;\n norm = (1.0 / (float) (1LL << 31)) * sqrt(3) * s->noise_mult;\n for (i = 0; i < NOISE_TAB_SIZE; i++) {\n seed = seed * 314159 + 1;\n s->noise_table[i] = (float) ((int) seed) * norm;\n }\n }\n#endif\n }\n coef_vlc_table = 2;\n if (avctx->sample_rate >= 32000) {\n if (bps1 < 0.72)\n coef_vlc_table = 0;\n else if (bps1 < 1.16)\n coef_vlc_table = 1;\n }\n s->coef_vlcs[0] = &coef_vlcs[coef_vlc_table * 2];\n s->coef_vlcs[1] = &coef_vlcs[coef_vlc_table * 2 + 1];\n init_coef_vlc(&s->coef_vlc[0], &s->run_table[0], &s->level_table[0],\n &s->int_table[0], s->coef_vlcs[0]);\n init_coef_vlc(&s->coef_vlc[1], &s->run_table[1], &s->level_table[1],\n &s->int_table[1], s->coef_vlcs[1]);\n return 0;\n}'] |
17,405 | 0 | https://github.com/openssl/openssl/blob/f305ecdac0b7048e7ef38a7196f4393fa7ceff38/crypto/bn/bn_ctx.c/#L300 | static unsigned int BN_STACK_pop(BN_STACK *st)
{
return st->indexes[--(st->depth)];
} | ['static int ec_field_inverse_mod_ord(const EC_GROUP *group, BIGNUM *r,\n const BIGNUM *x, BN_CTX *ctx)\n{\n BIGNUM *e = NULL;\n int ret = 0;\n#ifndef FIPS_MODE\n BN_CTX *new_ctx = NULL;\n if (ctx == NULL)\n ctx = new_ctx = BN_CTX_secure_new();\n#endif\n if (ctx == NULL)\n return 0;\n if (group->mont_data == NULL)\n goto err;\n BN_CTX_start(ctx);\n if ((e = BN_CTX_get(ctx)) == NULL)\n goto err;\n if (!BN_set_word(e, 2))\n goto err;\n if (!BN_sub(e, group->order, e))\n goto err;\n if (!BN_mod_exp_mont(r, x, e, group->order, ctx, group->mont_data))\n goto err;\n ret = 1;\n err:\n BN_CTX_end(ctx);\n#ifndef FIPS_MODE\n BN_CTX_free(new_ctx);\n#endif\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}'] |
17,406 | 0 | https://github.com/libav/libav/blob/6aa4e88106a554cef1d2294bb0a18b8f843032ef/libavcodec/smacker.c/#L312 | static int decode_header_trees(SmackVContext *smk) {
GetBitContext gb;
int mmap_size, mclr_size, full_size, type_size;
mmap_size = AV_RL32(smk->avctx->extradata);
mclr_size = AV_RL32(smk->avctx->extradata + 4);
full_size = AV_RL32(smk->avctx->extradata + 8);
type_size = AV_RL32(smk->avctx->extradata + 12);
init_get_bits(&gb, smk->avctx->extradata + 16, (smk->avctx->extradata_size - 16) * 8);
if(!get_bits1(&gb)) {
av_log(smk->avctx, AV_LOG_INFO, "Skipping MMAP tree\n");
smk->mmap_tbl = av_malloc(sizeof(int) * 2);
smk->mmap_tbl[0] = 0;
smk->mmap_last[0] = smk->mmap_last[1] = smk->mmap_last[2] = 1;
} else {
if (smacker_decode_header_tree(smk, &gb, &smk->mmap_tbl, smk->mmap_last, mmap_size))
return -1;
}
if(!get_bits1(&gb)) {
av_log(smk->avctx, AV_LOG_INFO, "Skipping MCLR tree\n");
smk->mclr_tbl = av_malloc(sizeof(int) * 2);
smk->mclr_tbl[0] = 0;
smk->mclr_last[0] = smk->mclr_last[1] = smk->mclr_last[2] = 1;
} else {
if (smacker_decode_header_tree(smk, &gb, &smk->mclr_tbl, smk->mclr_last, mclr_size))
return -1;
}
if(!get_bits1(&gb)) {
av_log(smk->avctx, AV_LOG_INFO, "Skipping FULL tree\n");
smk->full_tbl = av_malloc(sizeof(int) * 2);
smk->full_tbl[0] = 0;
smk->full_last[0] = smk->full_last[1] = smk->full_last[2] = 1;
} else {
if (smacker_decode_header_tree(smk, &gb, &smk->full_tbl, smk->full_last, full_size))
return -1;
}
if(!get_bits1(&gb)) {
av_log(smk->avctx, AV_LOG_INFO, "Skipping TYPE tree\n");
smk->type_tbl = av_malloc(sizeof(int) * 2);
smk->type_tbl[0] = 0;
smk->type_last[0] = smk->type_last[1] = smk->type_last[2] = 1;
} else {
if (smacker_decode_header_tree(smk, &gb, &smk->type_tbl, smk->type_last, type_size))
return -1;
}
return 0;
} | ['static int decode_header_trees(SmackVContext *smk) {\n GetBitContext gb;\n int mmap_size, mclr_size, full_size, type_size;\n mmap_size = AV_RL32(smk->avctx->extradata);\n mclr_size = AV_RL32(smk->avctx->extradata + 4);\n full_size = AV_RL32(smk->avctx->extradata + 8);\n type_size = AV_RL32(smk->avctx->extradata + 12);\n init_get_bits(&gb, smk->avctx->extradata + 16, (smk->avctx->extradata_size - 16) * 8);\n if(!get_bits1(&gb)) {\n av_log(smk->avctx, AV_LOG_INFO, "Skipping MMAP tree\\n");\n smk->mmap_tbl = av_malloc(sizeof(int) * 2);\n smk->mmap_tbl[0] = 0;\n smk->mmap_last[0] = smk->mmap_last[1] = smk->mmap_last[2] = 1;\n } else {\n if (smacker_decode_header_tree(smk, &gb, &smk->mmap_tbl, smk->mmap_last, mmap_size))\n return -1;\n }\n if(!get_bits1(&gb)) {\n av_log(smk->avctx, AV_LOG_INFO, "Skipping MCLR tree\\n");\n smk->mclr_tbl = av_malloc(sizeof(int) * 2);\n smk->mclr_tbl[0] = 0;\n smk->mclr_last[0] = smk->mclr_last[1] = smk->mclr_last[2] = 1;\n } else {\n if (smacker_decode_header_tree(smk, &gb, &smk->mclr_tbl, smk->mclr_last, mclr_size))\n return -1;\n }\n if(!get_bits1(&gb)) {\n av_log(smk->avctx, AV_LOG_INFO, "Skipping FULL tree\\n");\n smk->full_tbl = av_malloc(sizeof(int) * 2);\n smk->full_tbl[0] = 0;\n smk->full_last[0] = smk->full_last[1] = smk->full_last[2] = 1;\n } else {\n if (smacker_decode_header_tree(smk, &gb, &smk->full_tbl, smk->full_last, full_size))\n return -1;\n }\n if(!get_bits1(&gb)) {\n av_log(smk->avctx, AV_LOG_INFO, "Skipping TYPE tree\\n");\n smk->type_tbl = av_malloc(sizeof(int) * 2);\n smk->type_tbl[0] = 0;\n smk->type_last[0] = smk->type_last[1] = smk->type_last[2] = 1;\n } else {\n if (smacker_decode_header_tree(smk, &gb, &smk->type_tbl, smk->type_last, type_size))\n return -1;\n }\n return 0;\n}', 'static inline void init_get_bits(GetBitContext *s, const uint8_t *buffer,\n 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#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}', '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}', 'void *av_malloc(size_t size)\n{\n void *ptr = NULL;\n#if CONFIG_MEMALIGN_HACK\n long diff;\n#endif\n assert(size);\n if (size > (INT_MAX-32) || !size)\n return NULL;\n#if CONFIG_MEMALIGN_HACK\n ptr = malloc(size+32);\n if(!ptr)\n return ptr;\n diff= ((-(long)ptr - 1)&31) + 1;\n ptr = (char*)ptr + diff;\n ((char*)ptr)[-1]= diff;\n#elif HAVE_POSIX_MEMALIGN\n if (posix_memalign(&ptr,32,size))\n ptr = NULL;\n#elif HAVE_ALIGNED_MALLOC\n ptr = _aligned_malloc(size, 32);\n#elif HAVE_MEMALIGN\n ptr = memalign(32,size);\n#else\n ptr = malloc(size);\n#endif\n return ptr;\n}'] |
17,407 | 0 | https://github.com/libav/libav/blob/c8b4a3999bc7f3732a537cdec6475918a65d6e78/libavfilter/avfilter.c/#L322 | AVFilterBufferRef *avfilter_get_video_buffer(AVFilterLink *link, int perms, int w, int h)
{
AVFilterBufferRef *ret = NULL;
av_unused char buf[16];
FF_DPRINTF_START(NULL, get_video_buffer); ff_dlog_link(NULL, link, 0);
av_dlog(NULL, " perms:%s w:%d h:%d\n", ff_get_ref_perms_string(buf, sizeof(buf), perms), w, h);
if (link->dstpad->get_video_buffer)
ret = link->dstpad->get_video_buffer(link, perms, w, h);
if (!ret)
ret = avfilter_default_get_video_buffer(link, perms, w, h);
if (ret)
ret->type = AVMEDIA_TYPE_VIDEO;
FF_DPRINTF_START(NULL, get_video_buffer); ff_dlog_link(NULL, link, 0); av_dlog(NULL, " returning "); ff_dlog_ref(NULL, ret, 1);
return ret;
} | ['AVFilterBufferRef *avfilter_get_video_buffer(AVFilterLink *link, int perms, int w, int h)\n{\n AVFilterBufferRef *ret = NULL;\n av_unused char buf[16];\n FF_DPRINTF_START(NULL, get_video_buffer); ff_dlog_link(NULL, link, 0);\n av_dlog(NULL, " perms:%s w:%d h:%d\\n", ff_get_ref_perms_string(buf, sizeof(buf), perms), w, h);\n if (link->dstpad->get_video_buffer)\n ret = link->dstpad->get_video_buffer(link, perms, w, h);\n if (!ret)\n ret = avfilter_default_get_video_buffer(link, perms, w, h);\n if (ret)\n ret->type = AVMEDIA_TYPE_VIDEO;\n FF_DPRINTF_START(NULL, get_video_buffer); ff_dlog_link(NULL, link, 0); av_dlog(NULL, " returning "); ff_dlog_ref(NULL, ret, 1);\n return ret;\n}', 'static void ff_dlog_link(void *ctx, AVFilterLink *link, int end)\n{\n if (link->type == AVMEDIA_TYPE_VIDEO) {\n av_dlog(ctx,\n "link[%p s:%dx%d fmt:%-16s %-16s->%-16s]%s",\n link, link->w, link->h,\n av_pix_fmt_descriptors[link->format].name,\n link->src ? link->src->filter->name : "",\n link->dst ? link->dst->filter->name : "",\n end ? "\\n" : "");\n } else {\n char buf[128];\n av_get_channel_layout_string(buf, sizeof(buf), -1, link->channel_layout);\n av_dlog(ctx,\n "link[%p r:%"PRId64" cl:%s fmt:%-16s %-16s->%-16s]%s",\n link, link->sample_rate, buf,\n av_get_sample_fmt_name(link->format),\n link->src ? link->src->filter->name : "",\n link->dst ? link->dst->filter->name : "",\n end ? "\\n" : "");\n }\n}', 'AVFilterBufferRef *avfilter_default_get_video_buffer(AVFilterLink *link, int perms, int w, int h)\n{\n int linesize[4];\n uint8_t *data[4];\n AVFilterBufferRef *picref = NULL;\n if (av_image_alloc(data, linesize, w, h, link->format, 16) < 0)\n return NULL;\n picref = avfilter_get_video_buffer_ref_from_arrays(data, linesize,\n perms, w, h, link->format);\n if (!picref) {\n av_free(data[0]);\n return NULL;\n }\n return picref;\n}', 'static void ff_dlog_ref(void *ctx, AVFilterBufferRef *ref, int end)\n{\n av_unused char buf[16];\n av_dlog(ctx,\n "ref[%p buf:%p refcount:%d perms:%s data:%p linesize[%d, %d, %d, %d] pts:%"PRId64" pos:%"PRId64,\n ref, ref->buf, ref->buf->refcount, ff_get_ref_perms_string(buf, sizeof(buf), ref->perms), ref->data[0],\n ref->linesize[0], ref->linesize[1], ref->linesize[2], ref->linesize[3],\n ref->pts, ref->pos);\n if (ref->video) {\n av_dlog(ctx, " a:%d/%d s:%dx%d i:%c iskey:%d type:%c",\n ref->video->pixel_aspect.num, ref->video->pixel_aspect.den,\n ref->video->w, ref->video->h,\n !ref->video->interlaced ? \'P\' :\n ref->video->top_field_first ? \'T\' : \'B\',\n ref->video->key_frame,\n av_get_picture_type_char(ref->video->pict_type));\n }\n if (ref->audio) {\n av_dlog(ctx, " cl:%"PRId64"d sn:%d s:%d sr:%d p:%d",\n ref->audio->channel_layout,\n ref->audio->nb_samples,\n ref->audio->size,\n ref->audio->sample_rate,\n ref->audio->planar);\n }\n av_dlog(ctx, "]%s", end ? "\\n" : "");\n}'] |
17,408 | 0 | https://github.com/openssl/openssl/blob/d8028b202bfe337200a0cc89b80983ea1838cb30/crypto/lhash/lhash.c/#L164 | static void doall_util_fn(OPENSSL_LHASH *lh, int use_arg,
OPENSSL_LH_DOALL_FUNC func,
OPENSSL_LH_DOALL_FUNCARG func_arg, void *arg)
{
int i;
OPENSSL_LH_NODE *a, *n;
if (lh == NULL)
return;
for (i = lh->num_nodes - 1; i >= 0; i--) {
a = lh->b[i];
while (a != NULL) {
n = a->next;
if (use_arg)
func_arg(a->data, arg);
else
func(a->data);
a = n;
}
}
} | ['static int test_ssl_set_bio(int idx)\n{\n SSL_CTX *ctx;\n BIO *bio1 = NULL;\n BIO *bio2 = NULL;\n BIO *irbio = NULL, *iwbio = NULL, *nrbio = NULL, *nwbio = NULL;\n SSL *ssl = NULL;\n int initrbio, initwbio, newrbio, newwbio;\n int testresult = 0;\n initrbio = idx % 3;\n idx /= 3;\n initwbio = idx % 3;\n idx /= 3;\n newrbio = idx % 3;\n idx /= 3;\n newwbio = idx;\n if (!TEST_int_le(newwbio, 2))\n return 0;\n if (!TEST_ptr(ctx = SSL_CTX_new(TLS_method()))\n || !TEST_ptr(ssl = SSL_new(ctx)))\n goto end;\n if (initrbio == USE_BIO_1\n || initwbio == USE_BIO_1\n || newrbio == USE_BIO_1\n || newwbio == USE_BIO_1) {\n if (!TEST_ptr(bio1 = BIO_new(BIO_s_mem())))\n goto end;\n }\n if (initrbio == USE_BIO_2\n || initwbio == USE_BIO_2\n || newrbio == USE_BIO_2\n || newwbio == USE_BIO_2) {\n if (!TEST_ptr(bio2 = BIO_new(BIO_s_mem())))\n goto end;\n }\n setupbio(&irbio, bio1, bio2, initrbio);\n setupbio(&iwbio, bio1, bio2, initwbio);\n if (irbio != NULL)\n BIO_up_ref(irbio);\n if (iwbio != NULL && iwbio != irbio)\n BIO_up_ref(iwbio);\n SSL_set_bio(ssl, irbio, iwbio);\n setupbio(&nrbio, bio1, bio2, newrbio);\n setupbio(&nwbio, bio1, bio2, newwbio);\n if (nrbio != NULL\n && nrbio != irbio\n && (nwbio != iwbio || nrbio != nwbio))\n BIO_up_ref(nrbio);\n if (nwbio != NULL\n && nwbio != nrbio\n && (nwbio != iwbio || (nwbio == iwbio && irbio == iwbio)))\n BIO_up_ref(nwbio);\n SSL_set_bio(ssl, nrbio, nwbio);\n testresult = 1;\n end:\n SSL_free(ssl);\n BIO_free(bio1);\n BIO_free(bio2);\n SSL_CTX_free(ctx);\n return testresult;\n}', 'SSL_CTX *SSL_CTX_new(const SSL_METHOD *meth)\n{\n SSL_CTX *ret = NULL;\n if (meth == NULL) {\n SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_NULL_SSL_METHOD_PASSED);\n return (NULL);\n }\n if (!OPENSSL_init_ssl(OPENSSL_INIT_LOAD_SSL_STRINGS, NULL))\n return NULL;\n if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0) {\n SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_X509_VERIFICATION_SETUP_PROBLEMS);\n goto err;\n }\n ret = OPENSSL_zalloc(sizeof(*ret));\n if (ret == NULL)\n goto err;\n ret->method = meth;\n ret->min_proto_version = 0;\n ret->max_proto_version = 0;\n ret->session_cache_mode = SSL_SESS_CACHE_SERVER;\n ret->session_cache_size = SSL_SESSION_CACHE_MAX_SIZE_DEFAULT;\n ret->session_timeout = meth->get_timeout();\n ret->references = 1;\n ret->lock = CRYPTO_THREAD_lock_new();\n if (ret->lock == NULL) {\n SSLerr(SSL_F_SSL_CTX_NEW, ERR_R_MALLOC_FAILURE);\n OPENSSL_free(ret);\n return NULL;\n }\n ret->max_cert_list = SSL_MAX_CERT_LIST_DEFAULT;\n ret->verify_mode = SSL_VERIFY_NONE;\n if ((ret->cert = ssl_cert_new()) == NULL)\n goto err;\n ret->sessions = lh_SSL_SESSION_new(ssl_session_hash, ssl_session_cmp);\n if (ret->sessions == NULL)\n goto err;\n ret->cert_store = X509_STORE_new();\n if (ret->cert_store == NULL)\n goto err;\n#ifndef OPENSSL_NO_CT\n ret->ctlog_store = CTLOG_STORE_new();\n if (ret->ctlog_store == NULL)\n goto err;\n#endif\n if (!ssl_create_cipher_list(ret->method,\n &ret->cipher_list, &ret->cipher_list_by_id,\n SSL_DEFAULT_CIPHER_LIST, ret->cert)\n || sk_SSL_CIPHER_num(ret->cipher_list) <= 0) {\n SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_LIBRARY_HAS_NO_CIPHERS);\n goto err2;\n }\n ret->param = X509_VERIFY_PARAM_new();\n if (ret->param == NULL)\n goto err;\n if ((ret->md5 = EVP_get_digestbyname("ssl3-md5")) == NULL) {\n SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES);\n goto err2;\n }\n if ((ret->sha1 = EVP_get_digestbyname("ssl3-sha1")) == NULL) {\n SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES);\n goto err2;\n }\n if ((ret->ca_names = sk_X509_NAME_new_null()) == NULL)\n goto err;\n if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->ex_data))\n goto err;\n if (!(meth->ssl3_enc->enc_flags & SSL_ENC_FLAG_DTLS))\n ret->comp_methods = SSL_COMP_get_compression_methods();\n ret->max_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH;\n ret->split_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH;\n if ((RAND_bytes(ret->ext.tick_key_name,\n sizeof(ret->ext.tick_key_name)) <= 0)\n || (RAND_bytes(ret->ext.tick_hmac_key,\n sizeof(ret->ext.tick_hmac_key)) <= 0)\n || (RAND_bytes(ret->ext.tick_aes_key,\n sizeof(ret->ext.tick_aes_key)) <= 0))\n ret->options |= SSL_OP_NO_TICKET;\n#ifndef OPENSSL_NO_SRP\n if (!SSL_CTX_SRP_CTX_init(ret))\n goto err;\n#endif\n#ifndef OPENSSL_NO_ENGINE\n# ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO\n# define eng_strx(x) #x\n# define eng_str(x) eng_strx(x)\n {\n ENGINE *eng;\n eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));\n if (!eng) {\n ERR_clear_error();\n ENGINE_load_builtin_engines();\n eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));\n }\n if (!eng || !SSL_CTX_set_client_cert_engine(ret, eng))\n ERR_clear_error();\n }\n# endif\n#endif\n ret->options |= SSL_OP_LEGACY_SERVER_CONNECT;\n ret->options |= SSL_OP_NO_COMPRESSION;\n ret->ext.status_type = TLSEXT_STATUSTYPE_nothing;\n ret->max_early_data = SSL3_RT_MAX_PLAIN_LENGTH;\n return ret;\n err:\n SSLerr(SSL_F_SSL_CTX_NEW, ERR_R_MALLOC_FAILURE);\n err2:\n SSL_CTX_free(ret);\n return NULL;\n}', 'DEFINE_LHASH_OF(SSL_SESSION)', 'OPENSSL_LHASH *OPENSSL_LH_new(OPENSSL_LH_HASHFUNC h, OPENSSL_LH_COMPFUNC c)\n{\n OPENSSL_LHASH *ret;\n if ((ret = OPENSSL_zalloc(sizeof(*ret))) == NULL)\n goto err0;\n if ((ret->b = OPENSSL_zalloc(sizeof(*ret->b) * MIN_NODES)) == NULL)\n goto err1;\n ret->comp = ((c == NULL) ? (OPENSSL_LH_COMPFUNC)strcmp : c);\n ret->hash = ((h == NULL) ? (OPENSSL_LH_HASHFUNC)OPENSSL_LH_strhash : h);\n ret->num_nodes = MIN_NODES / 2;\n ret->num_alloc_nodes = MIN_NODES;\n ret->pmax = MIN_NODES / 2;\n ret->up_load = UP_LOAD;\n ret->down_load = DOWN_LOAD;\n return (ret);\n err1:\n OPENSSL_free(ret);\n err0:\n return (NULL);\n}', 'void SSL_free(SSL *s)\n{\n int i;\n if (s == NULL)\n return;\n CRYPTO_DOWN_REF(&s->references, &i, s->lock);\n REF_PRINT_COUNT("SSL", s);\n if (i > 0)\n return;\n REF_ASSERT_ISNT(i < 0);\n X509_VERIFY_PARAM_free(s->param);\n dane_final(&s->dane);\n CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);\n ssl_free_wbio_buffer(s);\n BIO_free_all(s->wbio);\n BIO_free_all(s->rbio);\n BUF_MEM_free(s->init_buf);\n sk_SSL_CIPHER_free(s->cipher_list);\n sk_SSL_CIPHER_free(s->cipher_list_by_id);\n if (s->session != NULL) {\n ssl_clear_bad_session(s);\n SSL_SESSION_free(s->session);\n }\n clear_ciphers(s);\n ssl_cert_free(s->cert);\n OPENSSL_free(s->ext.hostname);\n SSL_CTX_free(s->session_ctx);\n#ifndef OPENSSL_NO_EC\n OPENSSL_free(s->ext.ecpointformats);\n OPENSSL_free(s->ext.supportedgroups);\n#endif\n sk_X509_EXTENSION_pop_free(s->ext.ocsp.exts, X509_EXTENSION_free);\n#ifndef OPENSSL_NO_OCSP\n sk_OCSP_RESPID_pop_free(s->ext.ocsp.ids, OCSP_RESPID_free);\n#endif\n#ifndef OPENSSL_NO_CT\n SCT_LIST_free(s->scts);\n OPENSSL_free(s->ext.scts);\n#endif\n OPENSSL_free(s->ext.ocsp.resp);\n OPENSSL_free(s->ext.alpn);\n OPENSSL_free(s->ext.tls13_cookie);\n OPENSSL_free(s->clienthello);\n sk_X509_NAME_pop_free(s->ca_names, X509_NAME_free);\n sk_X509_pop_free(s->verified_chain, X509_free);\n if (s->method != NULL)\n s->method->ssl_free(s);\n RECORD_LAYER_release(&s->rlayer);\n SSL_CTX_free(s->ctx);\n ASYNC_WAIT_CTX_free(s->waitctx);\n#if !defined(OPENSSL_NO_NEXTPROTONEG)\n OPENSSL_free(s->ext.npn);\n#endif\n#ifndef OPENSSL_NO_SRTP\n sk_SRTP_PROTECTION_PROFILE_free(s->srtp_profiles);\n#endif\n CRYPTO_THREAD_lock_free(s->lock);\n OPENSSL_free(s);\n}', 'void SSL_CTX_free(SSL_CTX *a)\n{\n int i;\n if (a == NULL)\n return;\n CRYPTO_DOWN_REF(&a->references, &i, a->lock);\n REF_PRINT_COUNT("SSL_CTX", a);\n if (i > 0)\n return;\n REF_ASSERT_ISNT(i < 0);\n X509_VERIFY_PARAM_free(a->param);\n dane_ctx_final(&a->dane);\n if (a->sessions != NULL)\n SSL_CTX_flush_sessions(a, 0);\n CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, a, &a->ex_data);\n lh_SSL_SESSION_free(a->sessions);\n X509_STORE_free(a->cert_store);\n#ifndef OPENSSL_NO_CT\n CTLOG_STORE_free(a->ctlog_store);\n#endif\n sk_SSL_CIPHER_free(a->cipher_list);\n sk_SSL_CIPHER_free(a->cipher_list_by_id);\n ssl_cert_free(a->cert);\n sk_X509_NAME_pop_free(a->ca_names, X509_NAME_free);\n sk_X509_pop_free(a->extra_certs, X509_free);\n a->comp_methods = NULL;\n#ifndef OPENSSL_NO_SRTP\n sk_SRTP_PROTECTION_PROFILE_free(a->srtp_profiles);\n#endif\n#ifndef OPENSSL_NO_SRP\n SSL_CTX_SRP_CTX_free(a);\n#endif\n#ifndef OPENSSL_NO_ENGINE\n ENGINE_finish(a->client_cert_engine);\n#endif\n#ifndef OPENSSL_NO_EC\n OPENSSL_free(a->ext.ecpointformats);\n OPENSSL_free(a->ext.supportedgroups);\n#endif\n OPENSSL_free(a->ext.alpn);\n CRYPTO_THREAD_lock_free(a->lock);\n OPENSSL_free(a);\n}', 'void SSL_CTX_flush_sessions(SSL_CTX *s, long t)\n{\n unsigned long i;\n TIMEOUT_PARAM tp;\n tp.ctx = s;\n tp.cache = s->sessions;\n if (tp.cache == NULL)\n return;\n tp.time = t;\n CRYPTO_THREAD_write_lock(s->lock);\n i = lh_SSL_SESSION_get_down_load(s->sessions);\n lh_SSL_SESSION_set_down_load(s->sessions, 0);\n lh_SSL_SESSION_doall_TIMEOUT_PARAM(tp.cache, timeout_cb, &tp);\n lh_SSL_SESSION_set_down_load(s->sessions, i);\n CRYPTO_THREAD_unlock(s->lock);\n}', 'IMPLEMENT_LHASH_DOALL_ARG(SSL_SESSION, TIMEOUT_PARAM)', 'void OPENSSL_LH_doall_arg(OPENSSL_LHASH *lh, OPENSSL_LH_DOALL_FUNCARG func, void *arg)\n{\n doall_util_fn(lh, 1, (OPENSSL_LH_DOALL_FUNC)0, func, arg);\n}', 'static void doall_util_fn(OPENSSL_LHASH *lh, int use_arg,\n OPENSSL_LH_DOALL_FUNC func,\n OPENSSL_LH_DOALL_FUNCARG func_arg, void *arg)\n{\n int i;\n OPENSSL_LH_NODE *a, *n;\n if (lh == NULL)\n return;\n for (i = lh->num_nodes - 1; i >= 0; i--) {\n a = lh->b[i];\n while (a != NULL) {\n n = a->next;\n if (use_arg)\n func_arg(a->data, arg);\n else\n func(a->data);\n a = n;\n }\n }\n}'] |
17,409 | 1 | https://github.com/openssl/openssl/blob/305b68f1a2b6d4d0aa07a6ab47ac372f067a40bb/crypto/bn/bn_ctx.c/#L276 | static unsigned int BN_STACK_pop(BN_STACK *st)
{
return st->indexes[--(st->depth)];
} | ['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}', 'void BN_CTX_start(BN_CTX *ctx)\n{\n CTXDBG_ENTRY("BN_CTX_start", ctx);\n if (ctx->err_stack || ctx->too_many)\n ctx->err_stack++;\n else if (!BN_STACK_push(&ctx->stack, ctx->used)) {\n BNerr(BN_F_BN_CTX_START, BN_R_TOO_MANY_TEMPORARY_VARIABLES);\n ctx->err_stack++;\n }\n CTXDBG_EXIT(ctx);\n}', 'int BN_to_montgomery(BIGNUM *r, const BIGNUM *a, BN_MONT_CTX *mont,\n BN_CTX *ctx)\n{\n return BN_mod_mul_montgomery(r, a, &(mont->RR), mont, ctx);\n}', 'int BN_mod_mul_montgomery(BIGNUM *r, const BIGNUM *a, const BIGNUM *b,\n BN_MONT_CTX *mont, BN_CTX *ctx)\n{\n BIGNUM *tmp;\n int ret = 0;\n 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_mul(BIGNUM *r, const BIGNUM *a, const BIGNUM *b, BN_CTX *ctx)\n{\n int ret = 0;\n int top, al, bl;\n BIGNUM *rr;\n#if defined(BN_MUL_COMBA) || defined(BN_RECURSION)\n int i;\n#endif\n#ifdef BN_RECURSION\n BIGNUM *t = NULL;\n int j = 0, k;\n#endif\n bn_check_top(a);\n bn_check_top(b);\n bn_check_top(r);\n al = a->top;\n bl = b->top;\n if ((al == 0) || (bl == 0)) {\n BN_zero(r);\n return 1;\n }\n top = al + bl;\n BN_CTX_start(ctx);\n if ((r == a) || (r == b)) {\n if ((rr = BN_CTX_get(ctx)) == NULL)\n goto err;\n } else\n rr = r;\n#if defined(BN_MUL_COMBA) || defined(BN_RECURSION)\n i = al - bl;\n#endif\n#ifdef BN_MUL_COMBA\n if (i == 0) {\n# if 0\n if (al == 4) {\n if (bn_wexpand(rr, 8) == NULL)\n goto err;\n rr->top = 8;\n bn_mul_comba4(rr->d, a->d, b->d);\n goto end;\n }\n# endif\n if (al == 8) {\n if (bn_wexpand(rr, 16) == NULL)\n goto err;\n rr->top = 16;\n bn_mul_comba8(rr->d, a->d, b->d);\n goto end;\n }\n }\n#endif\n#ifdef BN_RECURSION\n if ((al >= BN_MULL_SIZE_NORMAL) && (bl >= BN_MULL_SIZE_NORMAL)) {\n if (i >= -1 && i <= 1) {\n if (i >= 0) {\n j = BN_num_bits_word((BN_ULONG)al);\n }\n if (i == -1) {\n j = BN_num_bits_word((BN_ULONG)bl);\n }\n j = 1 << (j - 1);\n assert(j <= al || j <= bl);\n k = j + j;\n t = BN_CTX_get(ctx);\n if (t == NULL)\n goto err;\n if (al > j || bl > j) {\n if (bn_wexpand(t, k * 4) == NULL)\n goto err;\n if (bn_wexpand(rr, k * 4) == NULL)\n goto err;\n bn_mul_part_recursive(rr->d, a->d, b->d,\n j, al - j, bl - j, t->d);\n } else {\n if (bn_wexpand(t, k * 2) == NULL)\n goto err;\n if (bn_wexpand(rr, k * 2) == NULL)\n goto err;\n bn_mul_recursive(rr->d, a->d, b->d, j, al - j, bl - j, t->d);\n }\n rr->top = top;\n goto end;\n }\n }\n#endif\n if (bn_wexpand(rr, top) == NULL)\n goto err;\n rr->top = top;\n bn_mul_normal(rr->d, a->d, al, b->d, bl);\n#if defined(BN_MUL_COMBA) || defined(BN_RECURSION)\n end:\n#endif\n rr->neg = a->neg ^ b->neg;\n bn_correct_top(rr);\n if (r != rr && BN_copy(r, rr) == NULL)\n goto err;\n ret = 1;\n err:\n bn_check_top(r);\n BN_CTX_end(ctx);\n return ret;\n}', 'void BN_CTX_end(BN_CTX *ctx)\n{\n CTXDBG_ENTRY("BN_CTX_end", ctx);\n if (ctx->err_stack)\n ctx->err_stack--;\n else {\n unsigned int fp = BN_STACK_pop(&ctx->stack);\n if (fp < ctx->used)\n BN_POOL_release(&ctx->pool, ctx->used - fp);\n ctx->used = fp;\n ctx->too_many = 0;\n }\n CTXDBG_EXIT(ctx);\n}', 'static unsigned int BN_STACK_pop(BN_STACK *st)\n{\n return st->indexes[--(st->depth)];\n}'] |
17,410 | 0 | https://github.com/libav/libav/blob/fd7f59639c43f0ab6b83ad2c1ceccafc553d7845/libavcodec/noise_bsf.c/#L33 | static int noise(AVBitStreamFilterContext *bsfc, AVCodecContext *avctx, const char *args,
uint8_t **poutbuf, int *poutbuf_size,
const uint8_t *buf, int buf_size, int keyframe){
unsigned int *state= bsfc->priv_data;
int amount= args ? atoi(args) : (*state % 10001+1);
int i;
*poutbuf= av_malloc(buf_size + FF_INPUT_BUFFER_PADDING_SIZE);
memcpy(*poutbuf, buf, buf_size + FF_INPUT_BUFFER_PADDING_SIZE);
for(i=0; i<buf_size; i++){
(*state) += (*poutbuf)[i] + 1;
if(*state % amount == 0)
(*poutbuf)[i] = *state;
}
return 1;
} | ['static int noise(AVBitStreamFilterContext *bsfc, AVCodecContext *avctx, const char *args,\n uint8_t **poutbuf, int *poutbuf_size,\n const uint8_t *buf, int buf_size, int keyframe){\n unsigned int *state= bsfc->priv_data;\n int amount= args ? atoi(args) : (*state % 10001+1);\n int i;\n *poutbuf= av_malloc(buf_size + FF_INPUT_BUFFER_PADDING_SIZE);\n memcpy(*poutbuf, buf, buf_size + FF_INPUT_BUFFER_PADDING_SIZE);\n for(i=0; i<buf_size; i++){\n (*state) += (*poutbuf)[i] + 1;\n if(*state % amount == 0)\n (*poutbuf)[i] = *state;\n }\n return 1;\n}', 'void *av_malloc(unsigned int size)\n{\n void *ptr = NULL;\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_POSIX_MEMALIGN)\n posix_memalign(&ptr,16,size);\n#elif defined (HAVE_MEMALIGN)\n ptr = memalign(16,size);\n#else\n ptr = malloc(size);\n#endif\n return ptr;\n}'] |
17,411 | 0 | https://gitlab.com/libtiff/libtiff/blob/3adc33842b7533066daea2516741832edc44d5fd/libtiff/tif_strip.c/#L93 | uint32
TIFFNumberOfStrips(TIFF* tif)
{
TIFFDirectory *td = &tif->tif_dir;
uint32 nstrips;
nstrips = (td->td_rowsperstrip == (uint32) -1 ? 1 :
TIFFhowmany_32(td->td_imagelength, td->td_rowsperstrip));
if (td->td_planarconfig == PLANARCONFIG_SEPARATE)
nstrips = multiply_32(tif, nstrips, (uint32)td->td_samplesperpixel,
"TIFFNumberOfStrips");
return (nstrips);
} | ['int\nmain(int argc, char* argv[])\n{\n\tTIFF *in, *out;\n\tif (argc < 2) {\n fprintf(stderr, "%s\\n\\n", TIFFGetVersion());\n\t\tfprintf(stderr, "usage: tiffsplit input.tif [prefix]\\n");\n\t\treturn (-3);\n\t}\n\tif (argc > 2) {\n\t\tstrncpy(fname, argv[2], sizeof(fname));\n\t\tfname[sizeof(fname) - 1] = \'\\0\';\n\t}\n\tin = TIFFOpen(argv[1], "r");\n\tif (in != NULL) {\n\t\tdo {\n\t\t\tsize_t path_len;\n\t\t\tchar *path;\n\t\t\tnewfilename();\n\t\t\tpath_len = strlen(fname) + sizeof(TIFF_SUFFIX);\n\t\t\tpath = (char *) _TIFFmalloc(path_len);\n\t\t\tstrncpy(path, fname, path_len);\n\t\t\tpath[path_len - 1] = \'\\0\';\n\t\t\tstrncat(path, TIFF_SUFFIX, path_len - strlen(path) - 1);\n\t\t\tout = TIFFOpen(path, TIFFIsBigEndian(in)?"wb":"wl");\n\t\t\t_TIFFfree(path);\n\t\t\tif (out == NULL)\n\t\t\t\treturn (-2);\n\t\t\tif (!tiffcp(in, out))\n\t\t\t\treturn (-1);\n\t\t\tTIFFClose(out);\n\t\t} while (TIFFReadDirectory(in));\n\t\t(void) TIFFClose(in);\n\t}\n\treturn (0);\n}', 'static int\ntiffcp(TIFF* in, TIFF* out)\n{\n\tuint16 bitspersample, samplesperpixel, compression, shortv, *shortav;\n\tuint32 w, l;\n\tfloat floatv;\n\tchar *stringv;\n\tuint32 longv;\n\tCopyField(TIFFTAG_SUBFILETYPE, longv);\n\tCopyField(TIFFTAG_TILEWIDTH, w);\n\tCopyField(TIFFTAG_TILELENGTH, l);\n\tCopyField(TIFFTAG_IMAGEWIDTH, w);\n\tCopyField(TIFFTAG_IMAGELENGTH, l);\n\tCopyField(TIFFTAG_BITSPERSAMPLE, bitspersample);\n\tCopyField(TIFFTAG_SAMPLESPERPIXEL, samplesperpixel);\n\tCopyField(TIFFTAG_COMPRESSION, compression);\n\tif (compression == COMPRESSION_JPEG) {\n\t\tuint16 count = 0;\n\t\tvoid *table = NULL;\n\t\tif (TIFFGetField(in, TIFFTAG_JPEGTABLES, &count, &table)\n\t\t && count > 0 && table) {\n\t\t TIFFSetField(out, TIFFTAG_JPEGTABLES, count, table);\n\t\t}\n\t}\n CopyField(TIFFTAG_PHOTOMETRIC, shortv);\n\tCopyField(TIFFTAG_PREDICTOR, shortv);\n\tCopyField(TIFFTAG_THRESHHOLDING, shortv);\n\tCopyField(TIFFTAG_FILLORDER, shortv);\n\tCopyField(TIFFTAG_ORIENTATION, shortv);\n\tCopyField(TIFFTAG_MINSAMPLEVALUE, shortv);\n\tCopyField(TIFFTAG_MAXSAMPLEVALUE, shortv);\n\tCopyField(TIFFTAG_XRESOLUTION, floatv);\n\tCopyField(TIFFTAG_YRESOLUTION, floatv);\n\tCopyField(TIFFTAG_GROUP3OPTIONS, longv);\n\tCopyField(TIFFTAG_GROUP4OPTIONS, longv);\n\tCopyField(TIFFTAG_RESOLUTIONUNIT, shortv);\n\tCopyField(TIFFTAG_PLANARCONFIG, shortv);\n\tCopyField(TIFFTAG_ROWSPERSTRIP, longv);\n\tCopyField(TIFFTAG_XPOSITION, floatv);\n\tCopyField(TIFFTAG_YPOSITION, floatv);\n\tCopyField(TIFFTAG_IMAGEDEPTH, longv);\n\tCopyField(TIFFTAG_TILEDEPTH, longv);\n\tCopyField(TIFFTAG_SAMPLEFORMAT, shortv);\n\tCopyField2(TIFFTAG_EXTRASAMPLES, shortv, shortav);\n\t{ uint16 *red, *green, *blue;\n\t CopyField3(TIFFTAG_COLORMAP, red, green, blue);\n\t}\n\t{ uint16 shortv2;\n\t CopyField2(TIFFTAG_PAGENUMBER, shortv, shortv2);\n\t}\n\tCopyField(TIFFTAG_ARTIST, stringv);\n\tCopyField(TIFFTAG_IMAGEDESCRIPTION, stringv);\n\tCopyField(TIFFTAG_MAKE, stringv);\n\tCopyField(TIFFTAG_MODEL, stringv);\n\tCopyField(TIFFTAG_SOFTWARE, stringv);\n\tCopyField(TIFFTAG_DATETIME, stringv);\n\tCopyField(TIFFTAG_HOSTCOMPUTER, stringv);\n\tCopyField(TIFFTAG_PAGENAME, stringv);\n\tCopyField(TIFFTAG_DOCUMENTNAME, stringv);\n\tCopyField(TIFFTAG_BADFAXLINES, longv);\n\tCopyField(TIFFTAG_CLEANFAXDATA, longv);\n\tCopyField(TIFFTAG_CONSECUTIVEBADFAXLINES, longv);\n\tCopyField(TIFFTAG_FAXRECVPARAMS, longv);\n\tCopyField(TIFFTAG_FAXRECVTIME, longv);\n\tCopyField(TIFFTAG_FAXSUBADDRESS, stringv);\n\tCopyField(TIFFTAG_FAXDCS, stringv);\n\tif (TIFFIsTiled(in))\n\t\treturn (cpTiles(in, out));\n\telse\n\t\treturn (cpStrips(in, out));\n}', 'static int\ncpStrips(TIFF* in, TIFF* out)\n{\n\ttmsize_t bufsize = TIFFStripSize(in);\n\tunsigned char *buf = (unsigned char *)_TIFFmalloc(bufsize);\n\tif (buf) {\n\t\ttstrip_t s, ns = TIFFNumberOfStrips(in);\n\t\tuint64 *bytecounts;\n\t\tTIFFGetField(in, TIFFTAG_STRIPBYTECOUNTS, &bytecounts);\n\t\tfor (s = 0; s < ns; s++) {\n\t\t\tif (bytecounts[s] > (uint64)bufsize) {\n\t\t\t\tbuf = (unsigned char *)_TIFFrealloc(buf, (tmsize_t)bytecounts[s]);\n\t\t\t\tif (!buf)\n\t\t\t\t\treturn (0);\n\t\t\t\tbufsize = (tmsize_t)bytecounts[s];\n\t\t\t}\n\t\t\tif (TIFFReadRawStrip(in, s, buf, (tmsize_t)bytecounts[s]) < 0 ||\n\t\t\t TIFFWriteRawStrip(out, s, buf, (tmsize_t)bytecounts[s]) < 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}', 'uint32\nTIFFNumberOfStrips(TIFF* tif)\n{\n\tTIFFDirectory *td = &tif->tif_dir;\n\tuint32 nstrips;\n\tnstrips = (td->td_rowsperstrip == (uint32) -1 ? 1 :\n\t TIFFhowmany_32(td->td_imagelength, td->td_rowsperstrip));\n\tif (td->td_planarconfig == PLANARCONFIG_SEPARATE)\n\t\tnstrips = multiply_32(tif, nstrips, (uint32)td->td_samplesperpixel,\n\t\t "TIFFNumberOfStrips");\n\treturn (nstrips);\n}'] |
17,412 | 0 | https://github.com/libav/libav/blob/f5968788bb3692f2fd503bb2ec1526b0369c7f92/ffmpeg.c/#L3231 | 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}'] |
17,413 | 0 | https://github.com/openssl/openssl/blob/d91f45688c2d0bfcc5b3b57fb20cc80b010eef0b/ssl/tls13_enc.c/#L702 | int tls13_export_keying_material(SSL *s, unsigned char *out, size_t olen,
const char *label, size_t llen,
const unsigned char *context,
size_t contextlen, int use_context)
{
unsigned char exportsecret[EVP_MAX_MD_SIZE];
static const unsigned char exporterlabel[] = "exporter";
unsigned char hash[EVP_MAX_MD_SIZE], data[EVP_MAX_MD_SIZE];
const EVP_MD *md = ssl_handshake_md(s);
EVP_MD_CTX *ctx = EVP_MD_CTX_new();
unsigned int hashsize, datalen;
int ret = 0;
if (ctx == NULL || !ossl_statem_export_allowed(s))
goto err;
if (!use_context)
contextlen = 0;
if (EVP_DigestInit_ex(ctx, md, NULL) <= 0
|| EVP_DigestUpdate(ctx, context, contextlen) <= 0
|| EVP_DigestFinal_ex(ctx, hash, &hashsize) <= 0
|| EVP_DigestInit_ex(ctx, md, NULL) <= 0
|| EVP_DigestFinal_ex(ctx, data, &datalen) <= 0
|| !tls13_hkdf_expand(s, md, s->exporter_master_secret,
(const unsigned char *)label, llen,
data, datalen, exportsecret, hashsize)
|| !tls13_hkdf_expand(s, md, exportsecret, exporterlabel,
sizeof(exporterlabel) - 1, hash, hashsize,
out, olen))
goto err;
ret = 1;
err:
EVP_MD_CTX_free(ctx);
return ret;
} | ['int tls13_export_keying_material(SSL *s, unsigned char *out, size_t olen,\n const char *label, size_t llen,\n const unsigned char *context,\n size_t contextlen, int use_context)\n{\n unsigned char exportsecret[EVP_MAX_MD_SIZE];\n static const unsigned char exporterlabel[] = "exporter";\n unsigned char hash[EVP_MAX_MD_SIZE], data[EVP_MAX_MD_SIZE];\n const EVP_MD *md = ssl_handshake_md(s);\n EVP_MD_CTX *ctx = EVP_MD_CTX_new();\n unsigned int hashsize, datalen;\n int ret = 0;\n if (ctx == NULL || !ossl_statem_export_allowed(s))\n goto err;\n if (!use_context)\n contextlen = 0;\n if (EVP_DigestInit_ex(ctx, md, NULL) <= 0\n || EVP_DigestUpdate(ctx, context, contextlen) <= 0\n || EVP_DigestFinal_ex(ctx, hash, &hashsize) <= 0\n || EVP_DigestInit_ex(ctx, md, NULL) <= 0\n || EVP_DigestFinal_ex(ctx, data, &datalen) <= 0\n || !tls13_hkdf_expand(s, md, s->exporter_master_secret,\n (const unsigned char *)label, llen,\n data, datalen, exportsecret, hashsize)\n || !tls13_hkdf_expand(s, md, exportsecret, exporterlabel,\n sizeof(exporterlabel) - 1, hash, hashsize,\n out, olen))\n goto err;\n ret = 1;\n err:\n EVP_MD_CTX_free(ctx);\n return ret;\n}', 'const EVP_MD *ssl_handshake_md(SSL *s)\n{\n return EVP_sha256();\n}', 'const EVP_MD *EVP_sha256(void)\n{\n return &sha256_md;\n}', 'EVP_MD_CTX *EVP_MD_CTX_new(void)\n{\n return OPENSSL_zalloc(sizeof(EVP_MD_CTX));\n}', 'void *CRYPTO_zalloc(size_t num, const char *file, int line)\n{\n void *ret = CRYPTO_malloc(num, file, line);\n FAILTEST();\n if (ret != NULL)\n memset(ret, 0, num);\n return ret;\n}', 'void *CRYPTO_malloc(size_t num, const char *file, int line)\n{\n void *ret = NULL;\n INCREMENT(malloc_count);\n if (malloc_impl != NULL && malloc_impl != CRYPTO_malloc)\n return malloc_impl(num, file, line);\n if (num == 0)\n return NULL;\n FAILTEST();\n allow_customize = 0;\n#ifndef OPENSSL_NO_CRYPTO_MDEBUG\n if (call_malloc_debug) {\n CRYPTO_mem_debug_malloc(NULL, num, 0, file, line);\n ret = malloc(num);\n CRYPTO_mem_debug_malloc(ret, num, 1, file, line);\n } else {\n ret = malloc(num);\n }\n#else\n (void)(file); (void)(line);\n ret = malloc(num);\n#endif\n return ret;\n}', 'int ossl_statem_export_allowed(SSL *s)\n{\n return 1;\n}', 'int EVP_DigestUpdate(EVP_MD_CTX *ctx, const void *data, size_t count)\n{\n return ctx->update(ctx, data, count);\n}', 'void EVP_MD_CTX_free(EVP_MD_CTX *ctx)\n{\n EVP_MD_CTX_reset(ctx);\n OPENSSL_free(ctx);\n}', 'void CRYPTO_free(void *str, const char *file, int line)\n{\n INCREMENT(free_count);\n if (free_impl != NULL && free_impl != &CRYPTO_free) {\n free_impl(str, file, line);\n return;\n }\n#ifndef OPENSSL_NO_CRYPTO_MDEBUG\n if (call_malloc_debug) {\n CRYPTO_mem_debug_free(str, 0, file, line);\n free(str);\n CRYPTO_mem_debug_free(str, 1, file, line);\n } else {\n free(str);\n }\n#else\n free(str);\n#endif\n}'] |
17,414 | 0 | https://github.com/openssl/openssl/blob/1d3159bccaa400d6966005b9bc49cca1f6719962/crypto/asn1/t_x509.c/#L401 | int ASN1_GENERALIZEDTIME_print(BIO *bp, ASN1_GENERALIZEDTIME *tm)
{
char *v;
int gmt=0;
int i;
int y=0,M=0,d=0,h=0,m=0,s=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 ( (v[12] >= '0') && (v[12] <= '9') &&
(v[13] >= '0') && (v[13] <= '9'))
s= (v[12]-'0')*10+(v[13]-'0');
if (BIO_printf(bp,"%s %2d %02d:%02d:%02d %d%s",
mon[M-1],d,h,m,s,y,(gmt)?" GMT":"") <= 0)
return(0);
else
return(1);
err:
BIO_write(bp,"Bad time value",14);
return(0);
} | ['int MAIN(int argc, char **argv)\n\t{\n\tENGINE *e = NULL;\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\tASN1_INTEGER *sno = 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 ocspid=0;\n\tint noout=0,sign_flag=0,CA_flag=0,CA_createserial=0,email=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\tCONF *extconf = NULL;\n\tchar *extsect = NULL, *extfile = NULL, *passin = NULL, *passargin = NULL;\n\tint need_rand = 0;\n\tint checkend=0,checkoffset=0;\n\tunsigned long nmflag = 0, certflag = 0;\n\tchar *engine=NULL;\n\treqfile=0;\n\tapps_startup();\n\tif (bio_err == NULL)\n\t\tbio_err=BIO_new_fp(stderr,BIO_NOCLOSE);\n\tif (!load_config(bio_err, NULL))\n\t\tgoto end;\n\tSTDout=BIO_new_fp(stdout,BIO_NOCLOSE);\n#ifdef OPENSSL_SYS_VMS\n\t{\n\tBIO *tmpbio = BIO_new(BIO_f_linebuffer());\n\tSTDout = BIO_push(tmpbio, STDout);\n\t}\n#endif\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\tCAkeyformat=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,"-set_serial") == 0)\n\t\t\t{\n\t\t\tif (--argc < 1) goto bad;\n\t\t\tif (!(sno = s2i_ASN1_INTEGER(NULL, *(++argv))))\n\t\t\t\tgoto bad;\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\t{\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\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\t{\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\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,"-certopt") == 0)\n\t\t\t{\n\t\t\tif (--argc < 1) goto bad;\n\t\t\tif (!set_cert_ex(&certflag, *(++argv))) goto bad;\n\t\t\t}\n\t\telse if (strcmp(*argv,"-nameopt") == 0)\n\t\t\t{\n\t\t\tif (--argc < 1) goto bad;\n\t\t\tif (!set_name_ex(&nmflag, *(++argv))) goto bad;\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,"-engine") == 0)\n\t\t\t{\n\t\t\tif (--argc < 1) goto bad;\n\t\t\tengine= *(++argv);\n\t\t\t}\n\t\telse if (strcmp(*argv,"-C") == 0)\n\t\t\tC= ++num;\n\t\telse if (strcmp(*argv,"-email") == 0)\n\t\t\temail= ++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,"-checkend") == 0)\n\t\t\t{\n\t\t\tif (--argc < 1) goto bad;\n\t\t\tcheckoffset=atoi(*(++argv));\n\t\t\tcheckend=1;\n\t\t\t}\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 (strcmp(*argv,"-ocspid") == 0)\n\t\t\tocspid= ++num;\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,"%s",*pp);\n\t\tgoto end;\n\t\t}\n e = setup_engine(bio_err, engine, 0);\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\t{\n\t\tBIO_printf(bio_err, "Error getting password\\n");\n\t\tgoto end;\n\t\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\t{\n\t\tlong errorline = -1;\n\t\tX509V3_CTX ctx2;\n\t\textconf = NCONF_new(NULL);\n\t\tif (!NCONF_load(extconf, extfile,&errorline))\n\t\t\t{\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\t}\n\t\tif (!extsect)\n\t\t\t{\n\t\t\textsect = NCONF_get_string(extconf, "default", "extensions");\n\t\t\tif (!extsect)\n\t\t\t\t{\n\t\t\t\tERR_clear_error();\n\t\t\t\textsect = "default";\n\t\t\t\t}\n\t\t\t}\n\t\tX509V3_set_ctx_test(&ctx2);\n\t\tX509V3_set_nconf(&ctx2, extconf);\n\t\tif (!X509V3_EXT_add_nconf(extconf, &ctx2, extsect, NULL))\n\t\t\t{\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\t\t\t}\n\t\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\tBIO_free(in);\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)\n\t\t\t{\n\t\t\tERR_print_errors(bio_err);\n\t\t\tgoto end;\n\t\t\t}\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\tprint_name(bio_err, "subject=", X509_REQ_get_subject_name(req), nmflag);\n\t\tif ((x=X509_new()) == NULL) goto end;\n\t\tci=x->cert_info;\n\t\tif (sno)\n\t\t\t{\n\t\t\tif (!X509_set_serialNumber(x, sno))\n\t\t\t\tgoto end;\n\t\t\t}\n\t\telse if (!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(bio_err,infile,informat,NULL,e,"Certificate");\n\tif (x == NULL) goto end;\n\tif (CA_flag)\n\t\t{\n\t\txca=load_cert(bio_err,CAfile,CAformat,NULL,e,"CA Certificate");\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\t{\n\t\t\tBIO_set_fp(out,stdout,BIO_NOCLOSE);\n#ifdef OPENSSL_SYS_VMS\n\t\t\t{\n\t\t\tBIO *tmpbio = BIO_new(BIO_f_linebuffer());\n\t\t\tout = BIO_push(tmpbio, out);\n\t\t\t}\n#endif\n\t\t\t}\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\t{\n\t\tfor (i = 0; i < sk_ASN1_OBJECT_num(trust); i++)\n\t\t\t{\n\t\t\tobjtmp = sk_ASN1_OBJECT_value(trust, i);\n\t\t\tX509_add1_trust_object(x, objtmp);\n\t\t\t}\n\t\t}\n\tif (reject)\n\t\t{\n\t\tfor (i = 0; i < sk_ASN1_OBJECT_num(reject); i++)\n\t\t\t{\n\t\t\tobjtmp = sk_ASN1_OBJECT_value(reject, i);\n\t\t\tX509_add1_reject_object(x, objtmp);\n\t\t\t}\n\t\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\tprint_name(STDout, "issuer= ",\n\t\t\t\t\tX509_get_issuer_name(x), nmflag);\n\t\t\t\t}\n\t\t\telse if (subject == i)\n\t\t\t\t{\n\t\t\t\tprint_name(STDout, "subject= ",\n\t\t\t\t\tX509_get_subject_name(x), nmflag);\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 (email == i)\n\t\t\t\t{\n\t\t\t\tint j;\n\t\t\t\tSTACK *emlst;\n\t\t\t\temlst = X509_get1_email(x);\n\t\t\t\tfor (j = 0; j < sk_num(emlst); j++)\n\t\t\t\t\tBIO_printf(STDout, "%s\\n", sk_value(emlst, j));\n\t\t\t\tX509_email_free(emlst);\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 OPENSSL_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 OPENSSL_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,sizeof buf);\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,\n\t\t\t\t\tsizeof buf);\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=OPENSSL_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\tOPENSSL_free(m);\n\t\t\t\t}\n\t\t\telse if (text == i)\n\t\t\t\t{\n\t\t\t\tX509_print_ex(out,x,nmflag, certflag);\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(bio_err,\n\t\t\t\t\t\tkeyfile, keyformat, 0,\n\t\t\t\t\t\tpassin, e, "Private key");\n\t\t\t\t\tif (Upkey == NULL) goto end;\n\t\t\t\t\t}\n#ifndef OPENSSL_NO_DSA\n\t\t if (Upkey->type == EVP_PKEY_DSA)\n\t\t digest=EVP_dss1();\n#endif\n#ifndef OPENSSL_NO_ECDSA\n\t\t\t\tif (Upkey->type == EVP_PKEY_EC)\n\t\t\t\t\tdigest=EVP_ecdsa();\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(bio_err,\n\t\t\t\t\t\tCAkeyfile, CAkeyformat,\n\t\t\t\t\t\t0, passin, e,\n\t\t\t\t\t\t"CA Private Key");\n\t\t\t\t\tif (CApkey == NULL) goto end;\n\t\t\t\t\t}\n#ifndef OPENSSL_NO_DSA\n\t\t if (CApkey->type == EVP_PKEY_DSA)\n\t\t digest=EVP_dss1();\n#endif\n#ifndef OPENSSL_NO_ECDSA\n\t\t\t\tif (CApkey->type == EVP_PKEY_EC)\n\t\t\t\t\tdigest = EVP_ecdsa();\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, sno))\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(bio_err,\n\t\t\t\t\t\tkeyfile, FORMAT_PEM, 0,\n\t\t\t\t\t\tpassin, e, "request key");\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#ifndef OPENSSL_NO_DSA\n\t\t if (pk->type == EVP_PKEY_DSA)\n\t\t digest=EVP_dss1();\n#endif\n#ifndef OPENSSL_NO_ECDSA\n\t\t\t\tif (pk->type == EVP_PKEY_EC)\n\t\t\t\t\tdigest=EVP_ecdsa();\n#endif\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\telse if (ocspid == i)\n\t\t\t\t{\n\t\t\t\tX509_ocspid_print(out, x);\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\tif (checkend)\n\t\t{\n\t\ttime_t tnow=time(NULL);\n\t\tif (ASN1_UTCTIME_cmp_time_t(X509_get_notAfter(x), tnow+checkoffset) == -1)\n\t\t\t{\n\t\t\tBIO_printf(out,"Certificate will expire\\n");\n\t\t\tret=1;\n\t\t\t}\n\t\telse\n\t\t\t{\n\t\t\tBIO_printf(out,"Certificate will not expire\\n");\n\t\t\tret=0;\n\t\t\t}\n\t\tgoto end;\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\t{\n\t\tif (trustout) i=PEM_write_bio_X509_AUX(out,x);\n\t\telse i=PEM_write_bio_X509(out,x);\n\t\t}\n\telse if (outformat == FORMAT_NETSCAPE)\n\t\t{\n\t\tASN1_HEADER ah;\n\t\tASN1_OCTET_STRING os;\n\t\tos.data=(unsigned char *)NETSCAPE_CERT_HDR;\n\t\tos.length=strlen(NETSCAPE_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\t{\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\tNCONF_free(extconf);\n\tBIO_free_all(out);\n\tBIO_free_all(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\tASN1_INTEGER_free(sno);\n\tsk_ASN1_OBJECT_pop_free(trust, ASN1_OBJECT_free);\n\tsk_ASN1_OBJECT_pop_free(reject, ASN1_OBJECT_free);\n\tif (passin) OPENSSL_free(passin);\n\tapps_shutdown();\n\tEXIT(ret);\n\t}', 'void EVP_PKEY_free(EVP_PKEY *x)\n\t{\n\tint i;\n\tif (x == NULL) return;\n\ti=CRYPTO_add(&x->references,-1,CRYPTO_LOCK_EVP_PKEY);\n#ifdef REF_PRINT\n\tREF_PRINT("EVP_PKEY",x);\n#endif\n\tif (i > 0) return;\n#ifdef REF_CHECK\n\tif (i < 0)\n\t\t{\n\t\tfprintf(stderr,"EVP_PKEY_free, bad reference count\\n");\n\t\tabort();\n\t\t}\n#endif\n\tEVP_PKEY_free_it(x);\n\tOPENSSL_free(x);\n\t}', 'int X509_print_ex(BIO *bp, X509 *x, unsigned long nmflags, unsigned long cflag)\n\t{\n\tlong l;\n\tint ret=0,i;\n\tchar *m=NULL,mlch = \' \';\n\tint nmindent = 0;\n\tX509_CINF *ci;\n\tASN1_INTEGER *bs;\n\tEVP_PKEY *pkey=NULL;\n\tconst char *neg;\n\tASN1_STRING *str=NULL;\n\tif((nmflags & XN_FLAG_SEP_MASK) == XN_FLAG_SEP_MULTILINE) {\n\t\t\tmlch = \'\\n\';\n\t\t\tnmindent = 12;\n\t}\n\tif(nmflags == X509_FLAG_COMPAT)\n\t\tnmindent = 16;\n\tci=x->cert_info;\n\tif(!(cflag & X509_FLAG_NO_HEADER))\n\t\t{\n\t\tif (BIO_write(bp,"Certificate:\\n",13) <= 0) goto err;\n\t\tif (BIO_write(bp," Data:\\n",10) <= 0) goto err;\n\t\t}\n\tif(!(cflag & X509_FLAG_NO_VERSION))\n\t\t{\n\t\tl=X509_get_version(x);\n\t\tif (BIO_printf(bp,"%8sVersion: %lu (0x%lx)\\n","",l+1,l) <= 0) goto err;\n\t\t}\n\tif(!(cflag & X509_FLAG_NO_SERIAL))\n\t\t{\n\t\tif (BIO_write(bp," Serial Number:",22) <= 0) goto err;\n\t\tbs=X509_get_serialNumber(x);\n\t\tif (bs->length <= 4)\n\t\t\t{\n\t\t\tl=ASN1_INTEGER_get(bs);\n\t\t\tif (l < 0)\n\t\t\t\t{\n\t\t\t\tl= -l;\n\t\t\t\tneg="-";\n\t\t\t\t}\n\t\t\telse\n\t\t\t\tneg="";\n\t\t\tif (BIO_printf(bp," %s%lu (%s0x%lx)\\n",neg,l,neg,l) <= 0)\n\t\t\t\tgoto err;\n\t\t\t}\n\t\telse\n\t\t\t{\n\t\t\tneg=(bs->type == V_ASN1_NEG_INTEGER)?" (Negative)":"";\n\t\t\tif (BIO_printf(bp,"\\n%12s%s","",neg) <= 0) goto err;\n\t\t\tfor (i=0; i<bs->length; i++)\n\t\t\t\t{\n\t\t\t\tif (BIO_printf(bp,"%02x%c",bs->data[i],\n\t\t\t\t\t((i+1 == bs->length)?\'\\n\':\':\')) <= 0)\n\t\t\t\t\tgoto err;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\tif(!(cflag & X509_FLAG_NO_SIGNAME))\n\t\t{\n\t\tif (BIO_printf(bp,"%8sSignature Algorithm: ","") <= 0)\n\t\t\tgoto err;\n\t\tif (i2a_ASN1_OBJECT(bp, ci->signature->algorithm) <= 0)\n\t\t\tgoto err;\n\t\tif (BIO_puts(bp, "\\n") <= 0)\n\t\t\tgoto err;\n\t\t}\n\tif(!(cflag & X509_FLAG_NO_ISSUER))\n\t\t{\n\t\tif (BIO_printf(bp," Issuer:%c",mlch) <= 0) goto err;\n\t\tif (X509_NAME_print_ex(bp,X509_get_issuer_name(x),nmindent, nmflags) < 0) goto err;\n\t\tif (BIO_write(bp,"\\n",1) <= 0) goto err;\n\t\t}\n\tif(!(cflag & X509_FLAG_NO_VALIDITY))\n\t\t{\n\t\tif (BIO_write(bp," Validity\\n",17) <= 0) goto err;\n\t\tif (BIO_write(bp," Not Before: ",24) <= 0) goto err;\n\t\tif (!ASN1_TIME_print(bp,X509_get_notBefore(x))) goto err;\n\t\tif (BIO_write(bp,"\\n Not After : ",25) <= 0) goto err;\n\t\tif (!ASN1_TIME_print(bp,X509_get_notAfter(x))) goto err;\n\t\tif (BIO_write(bp,"\\n",1) <= 0) goto err;\n\t\t}\n\tif(!(cflag & X509_FLAG_NO_SUBJECT))\n\t\t{\n\t\tif (BIO_printf(bp," Subject:%c",mlch) <= 0) goto err;\n\t\tif (X509_NAME_print_ex(bp,X509_get_subject_name(x),nmindent, nmflags) < 0) goto err;\n\t\tif (BIO_write(bp,"\\n",1) <= 0) goto err;\n\t\t}\n\tif(!(cflag & X509_FLAG_NO_PUBKEY))\n\t\t{\n\t\tif (BIO_write(bp," Subject Public Key Info:\\n",33) <= 0)\n\t\t\tgoto err;\n\t\tif (BIO_printf(bp,"%12sPublic Key Algorithm: ","") <= 0)\n\t\t\tgoto err;\n\t\tif (i2a_ASN1_OBJECT(bp, ci->key->algor->algorithm) <= 0)\n\t\t\tgoto err;\n\t\tif (BIO_puts(bp, "\\n") <= 0)\n\t\t\tgoto err;\n\t\tpkey=X509_get_pubkey(x);\n\t\tif (pkey == NULL)\n\t\t\t{\n\t\t\tBIO_printf(bp,"%12sUnable to load Public Key\\n","");\n\t\t\tERR_print_errors(bp);\n\t\t\t}\n\t\telse\n#ifndef OPENSSL_NO_RSA\n\t\tif (pkey->type == EVP_PKEY_RSA)\n\t\t\t{\n\t\t\tBIO_printf(bp,"%12sRSA Public Key: (%d bit)\\n","",\n\t\t\tBN_num_bits(pkey->pkey.rsa->n));\n\t\t\tRSA_print(bp,pkey->pkey.rsa,16);\n\t\t\t}\n\t\telse\n#endif\n#ifndef OPENSSL_NO_DSA\n\t\tif (pkey->type == EVP_PKEY_DSA)\n\t\t\t{\n\t\t\tBIO_printf(bp,"%12sDSA Public Key:\\n","");\n\t\t\tDSA_print(bp,pkey->pkey.dsa,16);\n\t\t\t}\n\t\telse\n#endif\n#ifndef OPENSSL_NO_EC\n\t\tif (pkey->type == EVP_PKEY_EC)\n\t\t\t{\n\t\t\tBIO_printf(bp, "%12sEC Public Key:\\n","");\n\t\t\tEC_KEY_print(bp, pkey->pkey.eckey, 16);\n\t\t\t}\n\t\telse\n#endif\n\t\t\tBIO_printf(bp,"%12sUnknown Public Key:\\n","");\n\t\tEVP_PKEY_free(pkey);\n\t\t}\n\tif (!(cflag & X509_FLAG_NO_EXTENSIONS))\n\t\tX509V3_extensions_print(bp, "X509v3 extensions",\n\t\t\t\t\tci->extensions, cflag, 8);\n\tif(!(cflag & X509_FLAG_NO_SIGDUMP))\n\t\t{\n\t\tif(X509_signature_print(bp, x->sig_alg, x->signature) <= 0) goto err;\n\t\t}\n\tif(!(cflag & X509_FLAG_NO_AUX))\n\t\t{\n\t\tif (!X509_CERT_AUX_print(bp, x->aux, 0)) goto err;\n\t\t}\n\tret=1;\nerr:\n\tif (str != NULL) ASN1_STRING_free(str);\n\tif (m != NULL) OPENSSL_free(m);\n\treturn(ret);\n\t}', 'int ASN1_TIME_print(BIO *bp, ASN1_TIME *tm)\n{\n\tif(tm->type == V_ASN1_UTCTIME) return ASN1_UTCTIME_print(bp, tm);\n\tif(tm->type == V_ASN1_GENERALIZEDTIME)\n\t\t\t\treturn ASN1_GENERALIZEDTIME_print(bp, tm);\n\tBIO_write(bp,"Bad time value",14);\n\treturn(0);\n}', 'int ASN1_GENERALIZEDTIME_print(BIO *bp, ASN1_GENERALIZEDTIME *tm)\n\t{\n\tchar *v;\n\tint gmt=0;\n\tint i;\n\tint y=0,M=0,d=0,h=0,m=0,s=0;\n\ti=tm->length;\n\tv=(char *)tm->data;\n\tif (i < 12) goto err;\n\tif (v[i-1] == \'Z\') gmt=1;\n\tfor (i=0; i<12; i++)\n\t\tif ((v[i] > \'9\') || (v[i] < \'0\')) goto err;\n\ty= (v[0]-\'0\')*1000+(v[1]-\'0\')*100 + (v[2]-\'0\')*10+(v[3]-\'0\');\n\tM= (v[4]-\'0\')*10+(v[5]-\'0\');\n\tif ((M > 12) || (M < 1)) goto err;\n\td= (v[6]-\'0\')*10+(v[7]-\'0\');\n\th= (v[8]-\'0\')*10+(v[9]-\'0\');\n\tm= (v[10]-\'0\')*10+(v[11]-\'0\');\n\tif (\t(v[12] >= \'0\') && (v[12] <= \'9\') &&\n\t\t(v[13] >= \'0\') && (v[13] <= \'9\'))\n\t\ts= (v[12]-\'0\')*10+(v[13]-\'0\');\n\tif (BIO_printf(bp,"%s %2d %02d:%02d:%02d %d%s",\n\t\tmon[M-1],d,h,m,s,y,(gmt)?" GMT":"") <= 0)\n\t\treturn(0);\n\telse\n\t\treturn(1);\nerr:\n\tBIO_write(bp,"Bad time value",14);\n\treturn(0);\n\t}'] |
17,415 | 0 | https://gitlab.com/libtiff/libtiff/blob/537cd1da1856d734a353511e063f755d77aae927/libtiff/tif_read.c/#L1062 | static int
TIFFStartTile(TIFF* tif, uint32 tile)
{
static const char module[] = "TIFFStartTile";
TIFFDirectory *td = &tif->tif_dir;
uint32 howmany32;
if (!_TIFFFillStriles( tif ) || !tif->tif_dir.td_stripbytecount)
return 0;
if ((tif->tif_flags & TIFF_CODERSETUP) == 0) {
if (!(*tif->tif_setupdecode)(tif))
return (0);
tif->tif_flags |= TIFF_CODERSETUP;
}
tif->tif_curtile = tile;
howmany32=TIFFhowmany_32(td->td_imagewidth, td->td_tilewidth);
if (howmany32 == 0) {
TIFFErrorExt(tif->tif_clientdata,module,"Zero tiles");
return 0;
}
tif->tif_row = (tile % howmany32) * td->td_tilelength;
howmany32=TIFFhowmany_32(td->td_imagelength, td->td_tilelength);
if (howmany32 == 0) {
TIFFErrorExt(tif->tif_clientdata,module,"Zero tiles");
return 0;
}
tif->tif_col = (tile % howmany32) * td->td_tilewidth;
tif->tif_flags &= ~TIFF_BUF4WRITE;
if (tif->tif_flags&TIFF_NOREADRAW)
{
tif->tif_rawcp = NULL;
tif->tif_rawcc = 0;
}
else
{
tif->tif_rawcp = tif->tif_rawdata;
tif->tif_rawcc = (tmsize_t)td->td_stripbytecount[tile];
}
return ((*tif->tif_predecode)(tif,
(uint16)(tile/td->td_stripsperimage)));
} | ['DECLAREreadFunc(readContigTilesIntoBuffer)\n{\n\tint status = 1;\n\ttsize_t tilesize = TIFFTileSize(in);\n\ttdata_t tilebuf;\n\tuint32 imagew = TIFFScanlineSize(in);\n\tuint32 tilew = TIFFTileRowSize(in);\n\tint64 iskew = (int64)imagew - (int64)tilew;\n\tuint8* bufp = (uint8*) buf;\n\tuint32 tw, tl;\n\tuint32 row;\n\t(void) spp;\n\ttilebuf = _TIFFmalloc(tilesize);\n\tif (tilebuf == 0)\n\t\treturn 0;\n\t_TIFFmemset(tilebuf, 0, tilesize);\n\t(void) TIFFGetField(in, TIFFTAG_TILEWIDTH, &tw);\n\t(void) TIFFGetField(in, TIFFTAG_TILELENGTH, &tl);\n\tfor (row = 0; row < imagelength; row += tl) {\n\t\tuint32 nrow = (row+tl > imagelength) ? imagelength-row : tl;\n\t\tuint32 colb = 0;\n\t\tuint32 col;\n\t\tfor (col = 0; col < imagewidth && colb < imagew; col += tw) {\n\t\t\tif (TIFFReadTile(in, tilebuf, col, row, 0, 0) < 0\n\t\t\t && !ignore) {\n\t\t\t\tTIFFError(TIFFFileName(in),\n\t\t\t\t "Error, can\'t read tile at %lu %lu",\n\t\t\t\t (unsigned long) col,\n\t\t\t\t (unsigned long) row);\n\t\t\t\tstatus = 0;\n\t\t\t\tgoto done;\n\t\t\t}\n\t\t\tif (colb > iskew) {\n\t\t\t\tuint32 width = imagew - colb;\n\t\t\t\tuint32 oskew = tilew - width;\n\t\t\t\tcpStripToTile(bufp + colb,\n\t\t\t\t tilebuf, nrow, width,\n\t\t\t\t oskew + iskew, oskew );\n\t\t\t} else\n\t\t\t\tcpStripToTile(bufp + colb,\n\t\t\t\t tilebuf, nrow, tilew,\n\t\t\t\t iskew, 0);\n\t\t\tcolb += tilew;\n\t\t}\n\t\tbufp += imagew * nrow;\n\t}\ndone:\n\t_TIFFfree(tilebuf);\n\treturn status;\n}', 'tmsize_t\nTIFFTileSize(TIFF* tif)\n{\n\tstatic const char module[] = "TIFFTileSize";\n\tuint64 m;\n\ttmsize_t n;\n\tm=TIFFTileSize64(tif);\n\tn=(tmsize_t)m;\n\tif ((uint64)n!=m)\n\t{\n\t\tTIFFErrorExt(tif->tif_clientdata,module,"Integer overflow");\n\t\tn=0;\n\t}\n\treturn(n);\n}', 'uint64\nTIFFTileSize64(TIFF* tif)\n{\n\treturn (TIFFVTileSize64(tif, tif->tif_dir.td_tilelength));\n}', 'uint64\nTIFFVTileSize64(TIFF* tif, uint32 nrows)\n{\n\tstatic const char module[] = "TIFFVTileSize64";\n\tTIFFDirectory *td = &tif->tif_dir;\n\tif (td->td_tilelength == 0 || td->td_tilewidth == 0 ||\n\t td->td_tiledepth == 0)\n\t\treturn (0);\n\tif ((td->td_planarconfig==PLANARCONFIG_CONTIG)&&\n\t (td->td_photometric==PHOTOMETRIC_YCBCR)&&\n\t (td->td_samplesperpixel==3)&&\n\t (!isUpSampled(tif)))\n\t{\n\t\tuint16 ycbcrsubsampling[2];\n\t\tuint16 samplingblock_samples;\n\t\tuint32 samplingblocks_hor;\n\t\tuint32 samplingblocks_ver;\n\t\tuint64 samplingrow_samples;\n\t\tuint64 samplingrow_size;\n\t\tTIFFGetFieldDefaulted(tif,TIFFTAG_YCBCRSUBSAMPLING,ycbcrsubsampling+0,\n\t\t ycbcrsubsampling+1);\n\t\tif ((ycbcrsubsampling[0] != 1 && ycbcrsubsampling[0] != 2 && ycbcrsubsampling[0] != 4)\n\t\t ||(ycbcrsubsampling[1] != 1 && ycbcrsubsampling[1] != 2 && ycbcrsubsampling[1] != 4))\n\t\t{\n\t\t\tTIFFErrorExt(tif->tif_clientdata,module,\n\t\t\t\t "Invalid YCbCr subsampling (%dx%d)",\n\t\t\t\t ycbcrsubsampling[0],\n\t\t\t\t ycbcrsubsampling[1] );\n\t\t\treturn 0;\n\t\t}\n\t\tsamplingblock_samples=ycbcrsubsampling[0]*ycbcrsubsampling[1]+2;\n\t\tsamplingblocks_hor=TIFFhowmany_32(td->td_tilewidth,ycbcrsubsampling[0]);\n\t\tsamplingblocks_ver=TIFFhowmany_32(nrows,ycbcrsubsampling[1]);\n\t\tsamplingrow_samples=_TIFFMultiply64(tif,samplingblocks_hor,samplingblock_samples,module);\n\t\tsamplingrow_size=TIFFhowmany8_64(_TIFFMultiply64(tif,samplingrow_samples,td->td_bitspersample,module));\n\t\treturn(_TIFFMultiply64(tif,samplingrow_size,samplingblocks_ver,module));\n\t}\n\telse\n\t\treturn(_TIFFMultiply64(tif,nrows,TIFFTileRowSize64(tif),module));\n}', 'tmsize_t\nTIFFTileRowSize(TIFF* tif)\n{\n\tstatic const char module[] = "TIFFTileRowSize";\n\tuint64 m;\n\ttmsize_t n;\n\tm=TIFFTileRowSize64(tif);\n\tn=(tmsize_t)m;\n\tif ((uint64)n!=m)\n\t{\n\t\tTIFFErrorExt(tif->tif_clientdata,module,"Integer overflow");\n\t\tn=0;\n\t}\n\treturn(n);\n}', 'uint64\nTIFFTileRowSize64(TIFF* tif)\n{\n static const char module[] = "TIFFTileRowSize64";\n\tTIFFDirectory *td = &tif->tif_dir;\n\tuint64 rowsize;\n\tuint64 tilerowsize;\n\tif (td->td_tilelength == 0)\n {\n TIFFErrorExt(tif->tif_clientdata,module,"Tile length is zero");\n return 0;\n }\n if (td->td_tilewidth == 0)\n {\n TIFFErrorExt(tif->tif_clientdata,module,"Tile width is zero");\n\t\treturn (0);\n }\n\trowsize = _TIFFMultiply64(tif, td->td_bitspersample, td->td_tilewidth,\n\t "TIFFTileRowSize");\n\tif (td->td_planarconfig == PLANARCONFIG_CONTIG)\n {\n if (td->td_samplesperpixel == 0)\n {\n TIFFErrorExt(tif->tif_clientdata,module,"Samples per pixel is zero");\n return 0;\n }\n\t\trowsize = _TIFFMultiply64(tif, rowsize, td->td_samplesperpixel,\n\t\t "TIFFTileRowSize");\n }\n tilerowsize=TIFFhowmany8_64(rowsize);\n if (tilerowsize == 0)\n {\n TIFFErrorExt(tif->tif_clientdata,module,"Computed tile row size is zero");\n return 0;\n }\n\treturn (tilerowsize);\n}', 'tmsize_t\nTIFFReadTile(TIFF* tif, void* buf, uint32 x, uint32 y, uint32 z, uint16 s)\n{\n\tif (!TIFFCheckRead(tif, 1) || !TIFFCheckTile(tif, x, y, z, s))\n\t\treturn ((tmsize_t)(-1));\n\treturn (TIFFReadEncodedTile(tif,\n\t TIFFComputeTile(tif, x, y, z, s), buf, (tmsize_t)(-1)));\n}', 'tmsize_t\nTIFFReadEncodedTile(TIFF* tif, uint32 tile, void* buf, tmsize_t size)\n{\n\tstatic const char module[] = "TIFFReadEncodedTile";\n\tTIFFDirectory *td = &tif->tif_dir;\n\ttmsize_t tilesize = tif->tif_tilesize;\n\tif (!TIFFCheckRead(tif, 1))\n\t\treturn ((tmsize_t)(-1));\n\tif (tile >= td->td_nstrips) {\n\t\tTIFFErrorExt(tif->tif_clientdata, module,\n\t\t "%lu: Tile out of range, max %lu",\n\t\t (unsigned long) tile, (unsigned long) td->td_nstrips);\n\t\treturn ((tmsize_t)(-1));\n\t}\n if( td->td_compression == COMPRESSION_NONE &&\n size!=(tmsize_t)(-1) && size >= tilesize &&\n !isMapped(tif) &&\n ((tif->tif_flags&TIFF_NOREADRAW)==0) )\n {\n if (TIFFReadRawTile1(tif, tile, buf, tilesize, module) != tilesize)\n return ((tmsize_t)(-1));\n if (!isFillOrder(tif, td->td_fillorder) &&\n (tif->tif_flags & TIFF_NOBITREV) == 0)\n TIFFReverseBits(buf,tilesize);\n (*tif->tif_postdecode)(tif,buf,tilesize);\n return (tilesize);\n }\n\tif (size == (tmsize_t)(-1))\n\t\tsize = tilesize;\n\telse if (size > tilesize)\n\t\tsize = tilesize;\n\tif (TIFFFillTile(tif, tile) && (*tif->tif_decodetile)(tif,\n\t (uint8*) buf, size, (uint16)(tile/td->td_stripsperimage))) {\n\t\t(*tif->tif_postdecode)(tif, (uint8*) buf, size);\n\t\treturn (size);\n\t} else\n\t\treturn ((tmsize_t)(-1));\n}', 'int\nTIFFFillTile(TIFF* tif, uint32 tile)\n{\n\tstatic const char module[] = "TIFFFillTile";\n\tTIFFDirectory *td = &tif->tif_dir;\n if (!_TIFFFillStriles( tif ) || !tif->tif_dir.td_stripbytecount)\n return 0;\n\tif ((tif->tif_flags&TIFF_NOREADRAW)==0)\n\t{\n\t\tuint64 bytecount = td->td_stripbytecount[tile];\n\t\tif ((int64)bytecount <= 0) {\n#if defined(__WIN32__) && (defined(_MSC_VER) || defined(__MINGW32__))\n\t\t\tTIFFErrorExt(tif->tif_clientdata, module,\n\t\t\t\t"%I64u: Invalid tile byte count, tile %lu",\n\t\t\t\t (unsigned __int64) bytecount,\n\t\t\t\t (unsigned long) tile);\n#else\n\t\t\tTIFFErrorExt(tif->tif_clientdata, module,\n\t\t\t\t"%llu: Invalid tile byte count, tile %lu",\n\t\t\t\t (unsigned long long) bytecount,\n\t\t\t\t (unsigned long) tile);\n#endif\n\t\t\treturn (0);\n\t\t}\n\t\tif (isMapped(tif) &&\n\t\t (isFillOrder(tif, td->td_fillorder)\n\t\t || (tif->tif_flags & TIFF_NOBITREV))) {\n\t\t\tif ((tif->tif_flags & TIFF_MYBUFFER) && tif->tif_rawdata) {\n\t\t\t\t_TIFFfree(tif->tif_rawdata);\n\t\t\t\ttif->tif_rawdata = NULL;\n\t\t\t\ttif->tif_rawdatasize = 0;\n\t\t\t}\n\t\t\ttif->tif_flags &= ~TIFF_MYBUFFER;\n\t\t\tif (bytecount > (uint64)tif->tif_size ||\n\t\t\t td->td_stripoffset[tile] > (uint64)tif->tif_size - bytecount) {\n\t\t\t\ttif->tif_curtile = NOTILE;\n\t\t\t\treturn (0);\n\t\t\t}\n\t\t\ttif->tif_rawdatasize = (tmsize_t)bytecount;\n\t\t\ttif->tif_rawdata =\n\t\t\t\ttif->tif_base + (tmsize_t)td->td_stripoffset[tile];\n tif->tif_rawdataoff = 0;\n tif->tif_rawdataloaded = (tmsize_t) bytecount;\n\t\t\ttif->tif_flags |= TIFF_BUFFERMMAP;\n\t\t} else {\n\t\t\ttmsize_t bytecountm;\n\t\t\tbytecountm=(tmsize_t)bytecount;\n\t\t\tif ((uint64)bytecountm!=bytecount)\n\t\t\t{\n\t\t\t\tTIFFErrorExt(tif->tif_clientdata,module,"Integer overflow");\n\t\t\t\treturn(0);\n\t\t\t}\n\t\t\tif (bytecountm > tif->tif_rawdatasize) {\n\t\t\t\ttif->tif_curtile = NOTILE;\n\t\t\t\tif ((tif->tif_flags & TIFF_MYBUFFER) == 0) {\n\t\t\t\t\tTIFFErrorExt(tif->tif_clientdata, module,\n\t\t\t\t\t "Data buffer too small to hold tile %lu",\n\t\t\t\t\t (unsigned long) tile);\n\t\t\t\t\treturn (0);\n\t\t\t\t}\n\t\t\t\tif (!TIFFReadBufferSetup(tif, 0, bytecountm))\n\t\t\t\t\treturn (0);\n\t\t\t}\n\t\t\tif (tif->tif_flags&TIFF_BUFFERMMAP) {\n\t\t\t\ttif->tif_curtile = NOTILE;\n\t\t\t\tif (!TIFFReadBufferSetup(tif, 0, bytecountm))\n\t\t\t\t\treturn (0);\n\t\t\t}\n\t\t\tif (TIFFReadRawTile1(tif, tile, tif->tif_rawdata,\n\t\t\t bytecountm, module) != bytecountm)\n\t\t\t\treturn (0);\n tif->tif_rawdataoff = 0;\n tif->tif_rawdataloaded = bytecountm;\n\t\t\tif (!isFillOrder(tif, td->td_fillorder) &&\n\t\t\t (tif->tif_flags & TIFF_NOBITREV) == 0)\n\t\t\t\tTIFFReverseBits(tif->tif_rawdata,\n tif->tif_rawdataloaded);\n\t\t}\n\t}\n\treturn (TIFFStartTile(tif, tile));\n}', 'static int\nTIFFStartTile(TIFF* tif, uint32 tile)\n{\n static const char module[] = "TIFFStartTile";\n\tTIFFDirectory *td = &tif->tif_dir;\n uint32 howmany32;\n if (!_TIFFFillStriles( tif ) || !tif->tif_dir.td_stripbytecount)\n return 0;\n\tif ((tif->tif_flags & TIFF_CODERSETUP) == 0) {\n\t\tif (!(*tif->tif_setupdecode)(tif))\n\t\t\treturn (0);\n\t\ttif->tif_flags |= TIFF_CODERSETUP;\n\t}\n\ttif->tif_curtile = tile;\n howmany32=TIFFhowmany_32(td->td_imagewidth, td->td_tilewidth);\n if (howmany32 == 0) {\n TIFFErrorExt(tif->tif_clientdata,module,"Zero tiles");\n return 0;\n }\n\ttif->tif_row = (tile % howmany32) * td->td_tilelength;\n howmany32=TIFFhowmany_32(td->td_imagelength, td->td_tilelength);\n if (howmany32 == 0) {\n TIFFErrorExt(tif->tif_clientdata,module,"Zero tiles");\n return 0;\n }\n\ttif->tif_col = (tile % howmany32) * td->td_tilewidth;\n tif->tif_flags &= ~TIFF_BUF4WRITE;\n\tif (tif->tif_flags&TIFF_NOREADRAW)\n\t{\n\t\ttif->tif_rawcp = NULL;\n\t\ttif->tif_rawcc = 0;\n\t}\n\telse\n\t{\n\t\ttif->tif_rawcp = tif->tif_rawdata;\n\t\ttif->tif_rawcc = (tmsize_t)td->td_stripbytecount[tile];\n\t}\n\treturn ((*tif->tif_predecode)(tif,\n\t\t\t(uint16)(tile/td->td_stripsperimage)));\n}'] |
17,416 | 0 | https://github.com/libav/libav/blob/e5b0fc170f85b00f7dd0ac514918fb5c95253d39/libavcodec/bitstream.h/#L139 | static inline uint64_t get_val(BitstreamContext *bc, unsigned n)
{
#ifdef BITSTREAM_READER_LE
uint64_t ret = bc->bits & ((UINT64_C(1) << n) - 1);
bc->bits >>= n;
#else
uint64_t ret = bc->bits >> (64 - n);
bc->bits <<= n;
#endif
bc->bits_left -= n;
return ret;
} | ['static int escape130_decode_frame(AVCodecContext *avctx, void *data,\n int *got_frame, AVPacket *avpkt)\n{\n const uint8_t *buf = avpkt->data;\n int buf_size = avpkt->size;\n Escape130Context *s = avctx->priv_data;\n AVFrame *pic = data;\n BitstreamContext bc;\n int ret;\n uint8_t *old_y, *old_cb, *old_cr,\n *new_y, *new_cb, *new_cr;\n uint8_t *dstY, *dstU, *dstV;\n unsigned old_y_stride, old_cb_stride, old_cr_stride,\n new_y_stride, new_cb_stride, new_cr_stride;\n unsigned total_blocks = avctx->width * avctx->height / 4,\n block_index, block_x = 0;\n unsigned y[4] = { 0 }, cb = 0x10, cr = 0x10;\n int skip = -1, y_avg = 0, i, j;\n uint8_t *ya = s->old_y_avg;\n if (buf_size <= 16) {\n av_log(avctx, AV_LOG_ERROR, "Insufficient frame data\\n");\n return AVERROR_INVALIDDATA;\n }\n if ((ret = ff_get_buffer(avctx, pic, 0)) < 0)\n return ret;\n bitstream_init(&bc, buf + 16, (buf_size - 16) * 8);\n new_y = s->new_y;\n new_cb = s->new_u;\n new_cr = s->new_v;\n new_y_stride = s->linesize[0];\n new_cb_stride = s->linesize[1];\n new_cr_stride = s->linesize[2];\n old_y = s->old_y;\n old_cb = s->old_u;\n old_cr = s->old_v;\n old_y_stride = s->linesize[0];\n old_cb_stride = s->linesize[1];\n old_cr_stride = s->linesize[2];\n for (block_index = 0; block_index < total_blocks; block_index++) {\n if (skip == -1)\n skip = decode_skip_count(&bc);\n if (skip == -1) {\n av_log(avctx, AV_LOG_ERROR, "Error decoding skip value\\n");\n return AVERROR_INVALIDDATA;\n }\n if (skip) {\n y[0] = old_y[0];\n y[1] = old_y[1];\n y[2] = old_y[old_y_stride];\n y[3] = old_y[old_y_stride + 1];\n y_avg = ya[0];\n cb = old_cb[0];\n cr = old_cr[0];\n } else {\n if (bitstream_read_bit(&bc)) {\n unsigned sign_selector = bitstream_read(&bc, 6);\n unsigned difference_selector = bitstream_read(&bc, 2);\n y_avg = 2 * bitstream_read(&bc, 5);\n for (i = 0; i < 4; i++) {\n y[i] = av_clip(y_avg + offset_table[difference_selector] *\n sign_table[sign_selector][i], 0, 63);\n }\n } else if (bitstream_read_bit(&bc)) {\n if (bitstream_read_bit(&bc)) {\n y_avg = bitstream_read(&bc, 6);\n } else {\n unsigned adjust_index = bitstream_read(&bc, 3);\n y_avg = (y_avg + luma_adjust[adjust_index]) & 63;\n }\n for (i = 0; i < 4; i++)\n y[i] = y_avg;\n }\n if (bitstream_read_bit(&bc)) {\n if (bitstream_read_bit(&bc)) {\n cb = bitstream_read(&bc, 5);\n cr = bitstream_read(&bc, 5);\n } else {\n unsigned adjust_index = bitstream_read(&bc, 3);\n cb = (cb + chroma_adjust[0][adjust_index]) & 31;\n cr = (cr + chroma_adjust[1][adjust_index]) & 31;\n }\n }\n }\n *ya++ = y_avg;\n new_y[0] = y[0];\n new_y[1] = y[1];\n new_y[new_y_stride] = y[2];\n new_y[new_y_stride + 1] = y[3];\n *new_cb = cb;\n *new_cr = cr;\n old_y += 2;\n old_cb++;\n old_cr++;\n new_y += 2;\n new_cb++;\n new_cr++;\n block_x++;\n if (block_x * 2 == avctx->width) {\n block_x = 0;\n old_y += old_y_stride * 2 - avctx->width;\n old_cb += old_cb_stride - avctx->width / 2;\n old_cr += old_cr_stride - avctx->width / 2;\n new_y += new_y_stride * 2 - avctx->width;\n new_cb += new_cb_stride - avctx->width / 2;\n new_cr += new_cr_stride - avctx->width / 2;\n }\n skip--;\n }\n new_y = s->new_y;\n new_cb = s->new_u;\n new_cr = s->new_v;\n dstY = pic->data[0];\n dstU = pic->data[1];\n dstV = pic->data[2];\n for (j = 0; j < avctx->height; j++) {\n for (i = 0; i < avctx->width; i++)\n dstY[i] = new_y[i] << 2;\n dstY += pic->linesize[0];\n new_y += new_y_stride;\n }\n for (j = 0; j < avctx->height / 2; j++) {\n for (i = 0; i < avctx->width / 2; i++) {\n dstU[i] = chroma_vals[new_cb[i]];\n dstV[i] = chroma_vals[new_cr[i]];\n }\n dstU += pic->linesize[1];\n dstV += pic->linesize[2];\n new_cb += new_cb_stride;\n new_cr += new_cr_stride;\n }\n ff_dlog(avctx, "Frame data: provided %d bytes, used %d bytes\\n",\n buf_size, bitstream_tell(&bc) >> 3);\n FFSWAP(uint8_t*, s->old_y, s->new_y);\n FFSWAP(uint8_t*, s->old_u, s->new_u);\n FFSWAP(uint8_t*, s->old_v, s->new_v);\n *got_frame = 1;\n return buf_size;\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}'] |
17,417 | 1 | https://github.com/libav/libav/blob/63e8d9760f23a4edf81e9ae58c4f6d3baa6ff4dd/libavcodec/mpegaudiodec.c/#L683 | static void apply_window_mp3_c(MPA_INT *synth_buf, MPA_INT *window,
int *dither_state, OUT_INT *samples, int incr)
{
register const MPA_INT *w, *w2, *p;
int j;
OUT_INT *samples2;
#if CONFIG_FLOAT
float sum, sum2;
#elif FRAC_BITS <= 15
int sum, sum2;
#else
int64_t sum, sum2;
#endif
memcpy(synth_buf + 512, synth_buf, 32 * sizeof(*synth_buf));
samples2 = samples + 31 * incr;
w = window;
w2 = window + 31;
sum = *dither_state;
p = synth_buf + 16;
SUM8(MACS, sum, w, p);
p = synth_buf + 48;
SUM8(MLSS, sum, w + 32, p);
*samples = round_sample(&sum);
samples += incr;
w++;
for(j=1;j<16;j++) {
sum2 = 0;
p = synth_buf + 16 + j;
SUM8P2(sum, MACS, sum2, MLSS, w, w2, p);
p = synth_buf + 48 - j;
SUM8P2(sum, MLSS, sum2, MLSS, w + 32, w2 + 32, p);
*samples = round_sample(&sum);
samples += incr;
sum += sum2;
*samples2 = round_sample(&sum);
samples2 -= incr;
w++;
w2--;
}
p = synth_buf + 32;
SUM8(MLSS, sum, w + 32, p);
*samples = round_sample(&sum);
*dither_state= sum;
} | ['static void mpc_synth(MPCContext *c, int16_t *out)\n{\n int dither_state = 0;\n int i, ch;\n OUT_INT samples[MPA_MAX_CHANNELS * MPA_FRAME_SIZE], *samples_ptr;\n for(ch = 0; ch < 2; ch++){\n samples_ptr = samples + ch;\n for(i = 0; i < SAMPLES_PER_BAND; i++) {\n ff_mpa_synth_filter(c->synth_buf[ch], &(c->synth_buf_offset[ch]),\n ff_mpa_synth_window, &dither_state,\n samples_ptr, 2,\n c->sb_samples[ch][i]);\n samples_ptr += 64;\n }\n }\n for(i = 0; i < MPC_FRAME_SIZE*2; i++)\n *out++=samples[i];\n}', 'void ff_mpa_synth_filter(MPA_INT *synth_buf_ptr, int *synth_buf_offset,\n MPA_INT *window, int *dither_state,\n OUT_INT *samples, int incr,\n INTFLOAT sb_samples[SBLIMIT])\n{\n register MPA_INT *synth_buf;\n int offset;\n#if FRAC_BITS <= 15\n int32_t tmp[32];\n int j;\n#endif\n offset = *synth_buf_offset;\n synth_buf = synth_buf_ptr + offset;\n#if FRAC_BITS <= 15\n dct32(tmp, sb_samples);\n for(j=0;j<32;j++) {\n synth_buf[j] = av_clip_int16(tmp[j]);\n }\n#else\n dct32(synth_buf, sb_samples);\n#endif\n apply_window_mp3_c(synth_buf, window, dither_state, samples, incr);\n offset = (offset - 32) & 511;\n *synth_buf_offset = offset;\n}', 'static void apply_window_mp3_c(MPA_INT *synth_buf, MPA_INT *window,\n int *dither_state, OUT_INT *samples, int incr)\n{\n register const MPA_INT *w, *w2, *p;\n int j;\n OUT_INT *samples2;\n#if CONFIG_FLOAT\n float sum, sum2;\n#elif FRAC_BITS <= 15\n int sum, sum2;\n#else\n int64_t sum, sum2;\n#endif\n memcpy(synth_buf + 512, synth_buf, 32 * sizeof(*synth_buf));\n samples2 = samples + 31 * incr;\n w = window;\n w2 = window + 31;\n sum = *dither_state;\n p = synth_buf + 16;\n SUM8(MACS, sum, w, p);\n p = synth_buf + 48;\n SUM8(MLSS, sum, w + 32, p);\n *samples = round_sample(&sum);\n samples += incr;\n w++;\n for(j=1;j<16;j++) {\n sum2 = 0;\n p = synth_buf + 16 + j;\n SUM8P2(sum, MACS, sum2, MLSS, w, w2, p);\n p = synth_buf + 48 - j;\n SUM8P2(sum, MLSS, sum2, MLSS, w + 32, w2 + 32, p);\n *samples = round_sample(&sum);\n samples += incr;\n sum += sum2;\n *samples2 = round_sample(&sum);\n samples2 -= incr;\n w++;\n w2--;\n }\n p = synth_buf + 32;\n SUM8(MLSS, sum, w + 32, p);\n *samples = round_sample(&sum);\n *dither_state= sum;\n}'] |
17,418 | 0 | https://github.com/libav/libav/blob/aa807425395caa17a85ed2833133278e8bd44a76/libavutil/avstring.c/#L105 | size_t av_strlcatf(char *dst, size_t size, const char *fmt, ...)
{
int len = strlen(dst);
va_list vl;
va_start(vl, fmt);
len += vsnprintf(dst + len, size > len ? size - len : 0, fmt, vl);
va_end(vl);
return len;
} | ['static int http_connect(URLContext *h, const char *path, const char *local_path,\n const char *hoststr, const char *auth,\n const char *proxyauth, int *new_location)\n{\n HTTPContext *s = h->priv_data;\n int post, err;\n char headers[1024] = "";\n char *authstr = NULL, *proxyauthstr = NULL;\n int64_t off = s->off;\n int len = 0;\n const char *method;\n int send_expect_100 = 0;\n post = h->flags & AVIO_FLAG_WRITE;\n if (s->post_data) {\n post = 1;\n s->chunked_post = 0;\n }\n method = post ? "POST" : "GET";\n authstr = ff_http_auth_create_response(&s->auth_state, auth, local_path,\n method);\n proxyauthstr = ff_http_auth_create_response(&s->proxy_auth_state, proxyauth,\n local_path, method);\n if (post && !s->post_data) {\n send_expect_100 = s->send_expect_100;\n if (auth && *auth &&\n s->auth_state.auth_type == HTTP_AUTH_NONE &&\n s->http_code != 401)\n send_expect_100 = 1;\n }\n if (!has_header(s->headers, "\\r\\nUser-Agent: "))\n len += av_strlcatf(headers + len, sizeof(headers) - len,\n "User-Agent: %s\\r\\n", s->user_agent);\n if (!has_header(s->headers, "\\r\\nAccept: "))\n len += av_strlcpy(headers + len, "Accept: */*\\r\\n",\n sizeof(headers) - len);\n if (!has_header(s->headers, "\\r\\nRange: ") && !post) {\n len += av_strlcatf(headers + len, sizeof(headers) - len,\n "Range: bytes=%"PRId64"-", s->off);\n if (s->end_off)\n len += av_strlcatf(headers + len, sizeof(headers) - len,\n "%"PRId64, s->end_off - 1);\n len += av_strlcpy(headers + len, "\\r\\n",\n sizeof(headers) - len);\n }\n if (send_expect_100 && !has_header(s->headers, "\\r\\nExpect: "))\n len += av_strlcatf(headers + len, sizeof(headers) - len,\n "Expect: 100-continue\\r\\n");\n if (!has_header(s->headers, "\\r\\nConnection: ")) {\n if (s->multiple_requests) {\n len += av_strlcpy(headers + len, "Connection: keep-alive\\r\\n",\n sizeof(headers) - len);\n } else {\n len += av_strlcpy(headers + len, "Connection: close\\r\\n",\n sizeof(headers) - len);\n }\n }\n if (!has_header(s->headers, "\\r\\nHost: "))\n len += av_strlcatf(headers + len, sizeof(headers) - len,\n "Host: %s\\r\\n", hoststr);\n if (!has_header(s->headers, "\\r\\nContent-Length: ") && s->post_data)\n len += av_strlcatf(headers + len, sizeof(headers) - len,\n "Content-Length: %d\\r\\n", s->post_datalen);\n if (!has_header(s->headers, "\\r\\nContent-Type: ") && s->content_type)\n len += av_strlcatf(headers + len, sizeof(headers) - len,\n "Content-Type: %s\\r\\n", s->content_type);\n if (!has_header(s->headers, "\\r\\nIcy-MetaData: ") && s->icy) {\n len += av_strlcatf(headers + len, sizeof(headers) - len,\n "Icy-MetaData: %d\\r\\n", 1);\n }\n if (s->headers)\n av_strlcpy(headers + len, s->headers, sizeof(headers) - len);\n snprintf(s->buffer, sizeof(s->buffer),\n "%s %s HTTP/1.1\\r\\n"\n "%s"\n "%s"\n "%s"\n "%s%s"\n "\\r\\n",\n method,\n path,\n post && s->chunked_post ? "Transfer-Encoding: chunked\\r\\n" : "",\n headers,\n authstr ? authstr : "",\n proxyauthstr ? "Proxy-" : "", proxyauthstr ? proxyauthstr : "");\n av_freep(&authstr);\n av_freep(&proxyauthstr);\n if ((err = ffurl_write(s->hd, s->buffer, strlen(s->buffer))) < 0)\n return err;\n if (s->post_data)\n if ((err = ffurl_write(s->hd, s->post_data, s->post_datalen)) < 0)\n return err;\n s->buf_ptr = s->buffer;\n s->buf_end = s->buffer;\n s->line_count = 0;\n s->off = 0;\n s->icy_data_read = 0;\n s->filesize = -1;\n s->willclose = 0;\n s->end_chunked_post = 0;\n s->end_header = 0;\n if (post && !s->post_data && !send_expect_100) {\n s->http_code = 200;\n return 0;\n }\n err = http_read_header(h, new_location);\n if (err < 0)\n return err;\n return (off == s->off) ? 0 : -1;\n}', 'size_t av_strlcatf(char *dst, size_t size, const char *fmt, ...)\n{\n int len = strlen(dst);\n va_list vl;\n va_start(vl, fmt);\n len += vsnprintf(dst + len, size > len ? size - len : 0, fmt, vl);\n va_end(vl);\n return len;\n}'] |
17,419 | 0 | https://github.com/libav/libav/blob/2f99117f6ff24ce5be2abb9e014cb8b86c2aa0e0/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 void truespeech_read_frame(TSContext *dec, const uint8_t *input)\n{\n BitstreamContext bc;\n dec->bdsp.bswap_buf((uint32_t *) dec->buffer, (const uint32_t *) input, 8);\n bitstream_init(&bc, dec->buffer, 32 * 8);\n dec->vector[7] = ts_codebook[7][bitstream_read(&bc, 3)];\n dec->vector[6] = ts_codebook[6][bitstream_read(&bc, 3)];\n dec->vector[5] = ts_codebook[5][bitstream_read(&bc, 3)];\n dec->vector[4] = ts_codebook[4][bitstream_read(&bc, 4)];\n dec->vector[3] = ts_codebook[3][bitstream_read(&bc, 4)];\n dec->vector[2] = ts_codebook[2][bitstream_read(&bc, 4)];\n dec->vector[1] = ts_codebook[1][bitstream_read(&bc, 5)];\n dec->vector[0] = ts_codebook[0][bitstream_read(&bc, 5)];\n dec->flag = bitstream_read_bit(&bc);\n dec->offset1[0] = bitstream_read(&bc, 4) << 4;\n dec->offset2[3] = bitstream_read(&bc, 7);\n dec->offset2[2] = bitstream_read(&bc, 7);\n dec->offset2[1] = bitstream_read(&bc, 7);\n dec->offset2[0] = bitstream_read(&bc, 7);\n dec->offset1[1] = bitstream_read(&bc, 4);\n dec->pulseval[1] = bitstream_read(&bc, 14);\n dec->pulseval[0] = bitstream_read(&bc, 14);\n dec->offset1[1] |= bitstream_read(&bc, 4) << 4;\n dec->pulseval[3] = bitstream_read(&bc, 14);\n dec->pulseval[2] = bitstream_read(&bc, 14);\n dec->offset1[0] |= bitstream_read_bit(&bc);\n dec->pulsepos[0] = bitstream_read(&bc, 27);\n dec->pulseoff[0] = bitstream_read(&bc, 4);\n dec->offset1[0] |= bitstream_read_bit(&bc) << 1;\n dec->pulsepos[1] = bitstream_read(&bc, 27);\n dec->pulseoff[1] = bitstream_read(&bc, 4);\n dec->offset1[0] |= bitstream_read_bit(&bc) << 2;\n dec->pulsepos[2] = bitstream_read(&bc, 27);\n dec->pulseoff[2] = bitstream_read(&bc, 4);\n dec->offset1[0] |= bitstream_read_bit(&bc) << 3;\n dec->pulsepos[3] = bitstream_read(&bc, 27);\n dec->pulseoff[3] = bitstream_read(&bc, 4);\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}'] |
17,420 | 0 | https://github.com/openssl/openssl/blob/8da94770f0a049497b1a52ee469cca1f4a13b1a7/crypto/bn/bn_lib.c/#L352 | static BN_ULONG *bn_expand_internal(const BIGNUM *b, int words)
{
BN_ULONG *A, *a = NULL;
const BN_ULONG *B;
int i;
bn_check_top(b);
if (words > (INT_MAX / (4 * BN_BITS2))) {
BNerr(BN_F_BN_EXPAND_INTERNAL, BN_R_BIGNUM_TOO_LONG);
return NULL;
}
if (BN_get_flags(b, BN_FLG_STATIC_DATA)) {
BNerr(BN_F_BN_EXPAND_INTERNAL, BN_R_EXPAND_ON_STATIC_BIGNUM_DATA);
return (NULL);
}
if (BN_get_flags(b,BN_FLG_SECURE))
a = A = OPENSSL_secure_malloc(words * sizeof(*a));
else
a = A = OPENSSL_malloc(words * sizeof(*a));
if (A == NULL) {
BNerr(BN_F_BN_EXPAND_INTERNAL, ERR_R_MALLOC_FAILURE);
return (NULL);
}
#ifdef PURIFY
memset(a, 0, sizeof(*a) * words);
#endif
#if 1
B = b->d;
if (B != NULL) {
for (i = b->top >> 2; i > 0; i--, A += 4, B += 4) {
BN_ULONG a0, a1, a2, a3;
a0 = B[0];
a1 = B[1];
a2 = B[2];
a3 = B[3];
A[0] = a0;
A[1] = a1;
A[2] = a2;
A[3] = a3;
}
switch (b->top & 3) {
case 3:
A[2] = B[2];
case 2:
A[1] = B[1];
case 1:
A[0] = B[0];
case 0:
;
}
}
#else
memset(A, 0, sizeof(*A) * words);
memcpy(A, b->d, sizeof(b->d[0]) * b->top);
#endif
return (a);
} | ['int ec_GF2m_simple_add(const EC_GROUP *group, EC_POINT *r, const EC_POINT *a,\n const EC_POINT *b, BN_CTX *ctx)\n{\n BN_CTX *new_ctx = NULL;\n BIGNUM *x0, *y0, *x1, *y1, *x2, *y2, *s, *t;\n int ret = 0;\n if (EC_POINT_is_at_infinity(group, a)) {\n if (!EC_POINT_copy(r, b))\n return 0;\n return 1;\n }\n if (EC_POINT_is_at_infinity(group, b)) {\n if (!EC_POINT_copy(r, a))\n return 0;\n return 1;\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 x0 = BN_CTX_get(ctx);\n y0 = BN_CTX_get(ctx);\n x1 = BN_CTX_get(ctx);\n y1 = BN_CTX_get(ctx);\n x2 = BN_CTX_get(ctx);\n y2 = BN_CTX_get(ctx);\n s = BN_CTX_get(ctx);\n t = BN_CTX_get(ctx);\n if (t == NULL)\n goto err;\n if (a->Z_is_one) {\n if (!BN_copy(x0, a->X))\n goto err;\n if (!BN_copy(y0, a->Y))\n goto err;\n } else {\n if (!EC_POINT_get_affine_coordinates_GF2m(group, a, x0, y0, ctx))\n goto err;\n }\n if (b->Z_is_one) {\n if (!BN_copy(x1, b->X))\n goto err;\n if (!BN_copy(y1, b->Y))\n goto err;\n } else {\n if (!EC_POINT_get_affine_coordinates_GF2m(group, b, x1, y1, ctx))\n goto err;\n }\n if (BN_GF2m_cmp(x0, x1)) {\n if (!BN_GF2m_add(t, x0, x1))\n goto err;\n if (!BN_GF2m_add(s, y0, y1))\n goto err;\n if (!group->meth->field_div(group, s, s, t, ctx))\n goto err;\n if (!group->meth->field_sqr(group, x2, s, ctx))\n goto err;\n if (!BN_GF2m_add(x2, x2, group->a))\n goto err;\n if (!BN_GF2m_add(x2, x2, s))\n goto err;\n if (!BN_GF2m_add(x2, x2, t))\n goto err;\n } else {\n if (BN_GF2m_cmp(y0, y1) || BN_is_zero(x1)) {\n if (!EC_POINT_set_to_infinity(group, r))\n goto err;\n ret = 1;\n goto err;\n }\n if (!group->meth->field_div(group, s, y1, x1, ctx))\n goto err;\n if (!BN_GF2m_add(s, s, x1))\n goto err;\n if (!group->meth->field_sqr(group, x2, s, ctx))\n goto err;\n if (!BN_GF2m_add(x2, x2, s))\n goto err;\n if (!BN_GF2m_add(x2, x2, group->a))\n goto err;\n }\n if (!BN_GF2m_add(y2, x1, x2))\n goto err;\n if (!group->meth->field_mul(group, y2, y2, s, ctx))\n goto err;\n if (!BN_GF2m_add(y2, y2, x2))\n goto err;\n if (!BN_GF2m_add(y2, y2, y1))\n goto err;\n if (!EC_POINT_set_affine_coordinates_GF2m(group, r, x2, y2, ctx))\n goto err;\n ret = 1;\n err:\n BN_CTX_end(ctx);\n BN_CTX_free(new_ctx);\n return ret;\n}', 'BIGNUM *BN_CTX_get(BN_CTX *ctx)\n{\n BIGNUM *ret;\n CTXDBG_ENTRY("BN_CTX_get", ctx);\n if (ctx->err_stack || ctx->too_many)\n return NULL;\n if ((ret = BN_POOL_get(&ctx->pool, ctx->flags)) == NULL) {\n ctx->too_many = 1;\n BNerr(BN_F_BN_CTX_GET, BN_R_TOO_MANY_TEMPORARY_VARIABLES);\n return NULL;\n }\n BN_zero(ret);\n ctx->used++;\n CTXDBG_RET(ctx, ret);\n return ret;\n}', 'int BN_set_word(BIGNUM *a, BN_ULONG w)\n{\n bn_check_top(a);\n if (bn_expand(a, (int)sizeof(BN_ULONG) * 8) == NULL)\n return (0);\n a->neg = 0;\n a->d[0] = w;\n a->top = (w ? 1 : 0);\n bn_check_top(a);\n return (1);\n}', 'BIGNUM *BN_copy(BIGNUM *a, const BIGNUM *b)\n{\n int i;\n BN_ULONG *A;\n const BN_ULONG *B;\n bn_check_top(b);\n if (a == b)\n return (a);\n if (bn_wexpand(a, b->top) == NULL)\n return (NULL);\n#if 1\n A = a->d;\n B = b->d;\n for (i = b->top >> 2; i > 0; i--, A += 4, B += 4) {\n BN_ULONG a0, a1, a2, a3;\n a0 = B[0];\n a1 = B[1];\n a2 = B[2];\n a3 = B[3];\n A[0] = a0;\n A[1] = a1;\n A[2] = a2;\n A[3] = a3;\n }\n switch (b->top & 3) {\n case 3:\n A[2] = B[2];\n case 2:\n A[1] = B[1];\n case 1:\n A[0] = B[0];\n case 0:;\n }\n#else\n memcpy(a->d, b->d, sizeof(b->d[0]) * b->top);\n#endif\n a->top = b->top;\n a->neg = b->neg;\n bn_check_top(a);\n return (a);\n}', 'BIGNUM *bn_wexpand(BIGNUM *a, int words)\n{\n return (words <= a->dmax) ? a : bn_expand2(a, words);\n}', 'BIGNUM *bn_expand2(BIGNUM *b, int words)\n{\n bn_check_top(b);\n if (words > b->dmax) {\n BN_ULONG *a = bn_expand_internal(b, words);\n if (!a)\n return NULL;\n if (b->d) {\n OPENSSL_cleanse(b->d, b->dmax * sizeof(b->d[0]));\n bn_free_d(b);\n }\n b->d = a;\n b->dmax = words;\n }\n bn_check_top(b);\n return b;\n}', 'static BN_ULONG *bn_expand_internal(const BIGNUM *b, int words)\n{\n BN_ULONG *A, *a = NULL;\n const BN_ULONG *B;\n int i;\n bn_check_top(b);\n if (words > (INT_MAX / (4 * BN_BITS2))) {\n BNerr(BN_F_BN_EXPAND_INTERNAL, BN_R_BIGNUM_TOO_LONG);\n return NULL;\n }\n if (BN_get_flags(b, BN_FLG_STATIC_DATA)) {\n BNerr(BN_F_BN_EXPAND_INTERNAL, BN_R_EXPAND_ON_STATIC_BIGNUM_DATA);\n return (NULL);\n }\n if (BN_get_flags(b,BN_FLG_SECURE))\n a = A = OPENSSL_secure_malloc(words * sizeof(*a));\n else\n a = A = OPENSSL_malloc(words * sizeof(*a));\n if (A == NULL) {\n BNerr(BN_F_BN_EXPAND_INTERNAL, ERR_R_MALLOC_FAILURE);\n return (NULL);\n }\n#ifdef PURIFY\n memset(a, 0, sizeof(*a) * words);\n#endif\n#if 1\n B = b->d;\n if (B != NULL) {\n for (i = b->top >> 2; i > 0; i--, A += 4, B += 4) {\n BN_ULONG a0, a1, a2, a3;\n a0 = B[0];\n a1 = B[1];\n a2 = B[2];\n a3 = B[3];\n A[0] = a0;\n A[1] = a1;\n A[2] = a2;\n A[3] = a3;\n }\n switch (b->top & 3) {\n case 3:\n A[2] = B[2];\n case 2:\n A[1] = B[1];\n case 1:\n A[0] = B[0];\n case 0:\n ;\n }\n }\n#else\n memset(A, 0, sizeof(*A) * words);\n memcpy(A, b->d, sizeof(b->d[0]) * b->top);\n#endif\n return (a);\n}'] |
17,421 | 0 | https://github.com/openssl/openssl/blob/562fd0d883053f6f62d97439d65cda03a3a1e25d/crypto/lhash/lhash.c/#L240 | void *lh_delete(_LHASH *lh, const void *data)
{
unsigned long hash;
LHASH_NODE *nn,**rn;
void *ret;
lh->error=0;
rn=getrn(lh,data,&hash);
if (*rn == NULL)
{
lh->num_no_delete++;
return(NULL);
}
else
{
nn= *rn;
*rn=nn->next;
ret=nn->data;
OPENSSL_free(nn);
lh->num_delete++;
}
lh->num_items--;
if ((lh->num_nodes > MIN_NODES) &&
(lh->down_load >= (lh->num_items*LH_LOAD_MULT/lh->num_nodes)))
contract(lh);
return(ret);
} | ['int ssl3_get_server_hello(SSL *s)\n\t{\n\tSTACK_OF(SSL_CIPHER) *sk;\n\tconst SSL_CIPHER *c;\n\tCERT *ct = s->cert;\n\tunsigned char *p,*d;\n\tint i,al=SSL_AD_INTERNAL_ERROR,ok;\n\tunsigned int j;\n\tlong n;\n#ifndef OPENSSL_NO_COMP\n\tSSL_COMP *comp;\n#endif\n\tif (SSL_IS_DTLS(s))\n\t\ts->first_packet = 1;\n\tn=s->method->ssl_get_message(s,\n\t\tSSL3_ST_CR_SRVR_HELLO_A,\n\t\tSSL3_ST_CR_SRVR_HELLO_B,\n\t\t-1,\n\t\t20000,\n\t\t&ok);\n\tif (!ok) return((int)n);\n\tif (SSL_IS_DTLS(s))\n\t\t{\n\t\ts->first_packet = 0;\n\t\tif ( s->s3->tmp.message_type == DTLS1_MT_HELLO_VERIFY_REQUEST)\n\t\t\t{\n\t\t\tif ( s->d1->send_cookie == 0)\n\t\t\t\t{\n\t\t\t\ts->s3->tmp.reuse_message = 1;\n\t\t\t\treturn 1;\n\t\t\t\t}\n\t\t\telse\n\t\t\t\t{\n\t\t\t\tal=SSL_AD_UNEXPECTED_MESSAGE;\n\t\t\t\tSSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_BAD_MESSAGE_TYPE);\n\t\t\t\tgoto f_err;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\tif ( s->s3->tmp.message_type != SSL3_MT_SERVER_HELLO)\n\t\t{\n\t\tal=SSL_AD_UNEXPECTED_MESSAGE;\n\t\tSSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_BAD_MESSAGE_TYPE);\n\t\tgoto f_err;\n\t\t}\n\td=p=(unsigned char *)s->init_msg;\n\tif (s->method->version == DTLS_ANY_VERSION)\n\t\t{\n\t\tint hversion = (p[0] << 8)|p[1];\n\t\tint options = s->options;\n\t\tif (hversion == DTLS1_2_VERSION\n\t\t\t&& !(options & SSL_OP_NO_DTLSv1_2))\n\t\t\ts->method = DTLSv1_2_client_method();\n\t\telse if (tls1_suiteb(s))\n\t\t\t{\n\t\t\tSSLerr(SSL_F_SSL3_GET_SERVER_HELLO, SSL_R_ONLY_DTLS_1_2_ALLOWED_IN_SUITEB_MODE);\n\t\t\ts->version = hversion;\n\t\t\tal = SSL_AD_PROTOCOL_VERSION;\n\t\t\tgoto f_err;\n\t\t\t}\n\t\telse if (hversion == DTLS1_VERSION\n\t\t\t&& !(options & SSL_OP_NO_DTLSv1))\n\t\t\ts->method = DTLSv1_client_method();\n\t\telse\n\t\t\t{\n\t\t\tSSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_WRONG_SSL_VERSION);\n\t\t\ts->version = hversion;\n\t\t\tal = SSL_AD_PROTOCOL_VERSION;\n\t\t\tgoto f_err;\n\t\t\t}\n\t\ts->version = s->client_version = s->method->version;\n\t\t}\n\tif ((p[0] != (s->version>>8)) || (p[1] != (s->version&0xff)))\n\t\t{\n\t\tSSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_WRONG_SSL_VERSION);\n\t\ts->version=(s->version&0xff00)|p[1];\n\t\tal=SSL_AD_PROTOCOL_VERSION;\n\t\tgoto f_err;\n\t\t}\n\tp+=2;\n\tmemcpy(s->s3->server_random,p,SSL3_RANDOM_SIZE);\n\tp+=SSL3_RANDOM_SIZE;\n\tj= *(p++);\n\tif ((j > sizeof s->session->session_id) || (j > SSL3_SESSION_ID_SIZE))\n\t\t{\n\t\tal=SSL_AD_ILLEGAL_PARAMETER;\n\t\tSSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_SSL3_SESSION_ID_TOO_LONG);\n\t\tgoto f_err;\n\t\t}\n#ifndef OPENSSL_NO_TLSEXT\n\tif (s->version >= TLS1_VERSION && s->tls_session_secret_cb)\n\t\t{\n\t\tSSL_CIPHER *pref_cipher=NULL;\n\t\ts->session->master_key_length=sizeof(s->session->master_key);\n\t\tif (s->tls_session_secret_cb(s, s->session->master_key,\n\t\t\t\t\t &s->session->master_key_length,\n\t\t\t\t\t NULL, &pref_cipher,\n\t\t\t\t\t s->tls_session_secret_cb_arg))\n\t\t\t{\n\t\t\ts->session->cipher = pref_cipher ?\n\t\t\t\tpref_cipher : ssl_get_cipher_by_char(s, p+j);\n\t \t\ts->s3->flags |= SSL3_FLAGS_CCS_OK;\n\t\t\t}\n\t\t}\n#endif\n\tif (j != 0 && j == s->session->session_id_length\n\t && memcmp(p,s->session->session_id,j) == 0)\n\t {\n\t if(s->sid_ctx_length != s->session->sid_ctx_length\n\t || memcmp(s->session->sid_ctx,s->sid_ctx,s->sid_ctx_length))\n\t\t{\n\t\tal=SSL_AD_ILLEGAL_PARAMETER;\n\t\tSSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_ATTEMPT_TO_REUSE_SESSION_IN_DIFFERENT_CONTEXT);\n\t\tgoto f_err;\n\t\t}\n\t s->s3->flags |= SSL3_FLAGS_CCS_OK;\n\t s->hit=1;\n\t }\n\telse\n\t\t{\n\t\ts->hit=0;\n\t\tif (s->session->session_id_length > 0)\n\t\t\t{\n\t\t\tif (!ssl_get_new_session(s,0))\n\t\t\t\t{\n\t\t\t\tgoto f_err;\n\t\t\t\t}\n\t\t\t}\n\t\ts->session->session_id_length=j;\n\t\tmemcpy(s->session->session_id,p,j);\n\t\t}\n\tp+=j;\n\tc=ssl_get_cipher_by_char(s,p);\n\tif (c == NULL)\n\t\t{\n\t\tal=SSL_AD_ILLEGAL_PARAMETER;\n\t\tSSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_UNKNOWN_CIPHER_RETURNED);\n\t\tgoto f_err;\n\t\t}\n\tif (!SSL_USE_TLS1_2_CIPHERS(s))\n\t\tct->mask_ssl = SSL_TLSV1_2;\n\telse\n\t\tct->mask_ssl = 0;\n\tif (ssl_cipher_disabled(s, c, SSL_SECOP_CIPHER_CHECK))\n\t\t{\n\t\tal=SSL_AD_ILLEGAL_PARAMETER;\n\t\tSSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_WRONG_CIPHER_RETURNED);\n\t\tgoto f_err;\n\t\t}\n\tp+=ssl_put_cipher_by_char(s,NULL,NULL);\n\tsk=ssl_get_ciphers_by_id(s);\n\ti=sk_SSL_CIPHER_find(sk,c);\n\tif (i < 0)\n\t\t{\n\t\tal=SSL_AD_ILLEGAL_PARAMETER;\n\t\tSSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_WRONG_CIPHER_RETURNED);\n\t\tgoto f_err;\n\t\t}\n\tif (s->session->cipher)\n\t\ts->session->cipher_id = s->session->cipher->id;\n\tif (s->hit && (s->session->cipher_id != c->id))\n\t\t{\n#if 0\n\t\tif (!(s->options &\n\t\t\tSSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG))\n#endif\n\t\t\t{\n\t\t\tal=SSL_AD_ILLEGAL_PARAMETER;\n\t\t\tSSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_OLD_SESSION_CIPHER_NOT_RETURNED);\n\t\t\tgoto f_err;\n\t\t\t}\n\t\t}\n\ts->s3->tmp.new_cipher=c;\n\tif (!SSL_USE_SIGALGS(s) && !ssl3_digest_cached_records(s))\n\t\tgoto f_err;\n#ifdef OPENSSL_NO_COMP\n\tif (*(p++) != 0)\n\t\t{\n\t\tal=SSL_AD_ILLEGAL_PARAMETER;\n\t\tSSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_UNSUPPORTED_COMPRESSION_ALGORITHM);\n\t\tgoto f_err;\n\t\t}\n\tif (s->session->compress_meth != 0)\n\t\t{\n\t\tSSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_INCONSISTENT_COMPRESSION);\n\t\tgoto f_err;\n\t\t}\n#else\n\tj= *(p++);\n\tif (s->hit && j != s->session->compress_meth)\n\t\t{\n\t\tal=SSL_AD_ILLEGAL_PARAMETER;\n\t\tSSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_OLD_SESSION_COMPRESSION_ALGORITHM_NOT_RETURNED);\n\t\tgoto f_err;\n\t\t}\n\tif (j == 0)\n\t\tcomp=NULL;\n\telse if (!ssl_allow_compression(s))\n\t\t{\n\t\tal=SSL_AD_ILLEGAL_PARAMETER;\n\t\tSSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_COMPRESSION_DISABLED);\n\t\tgoto f_err;\n\t\t}\n\telse\n\t\tcomp=ssl3_comp_find(s->ctx->comp_methods,j);\n\tif ((j != 0) && (comp == NULL))\n\t\t{\n\t\tal=SSL_AD_ILLEGAL_PARAMETER;\n\t\tSSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_UNSUPPORTED_COMPRESSION_ALGORITHM);\n\t\tgoto f_err;\n\t\t}\n\telse\n\t\t{\n\t\ts->s3->tmp.new_compression=comp;\n\t\t}\n#endif\n#ifndef OPENSSL_NO_TLSEXT\n\tif (!ssl_parse_serverhello_tlsext(s,&p,d,n))\n\t\t{\n\t\tSSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_PARSE_TLSEXT);\n\t\tgoto err;\n\t\t}\n#endif\n\tif (p != (d+n))\n\t\t{\n\t\tal=SSL_AD_DECODE_ERROR;\n\t\tSSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_BAD_PACKET_LENGTH);\n\t\tgoto f_err;\n\t\t}\n\treturn(1);\nf_err:\n\tssl3_send_alert(s,SSL3_AL_FATAL,al);\nerr:\n\treturn(-1);\n\t}', 'int 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 -1;\n\tif ((level == SSL3_AL_FATAL) && (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\treturn s->method->ssl_dispatch_alert(s);\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 = lh_SSL_SESSION_retrieve(ctx->sessions,c)) == c)\n\t\t\t{\n\t\t\tret=1;\n\t\t\tr=lh_SSL_SESSION_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}'] |
17,422 | 0 | https://github.com/openssl/openssl/blob/9f519addc09b2005fa8c6cde36e3267de02577bb/crypto/bn/bn_lib.c/#L760 | 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 const unsigned char *p = *in;\n if ((params = d2i_ECPKPARAMETERS(NULL, &p, 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_GROUP_new_from_ecpkparameters(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 *in = p;\n return (group);\n}', 'EC_GROUP *EC_GROUP_new_from_ecpkparameters(const ECPKPARAMETERS *params)\n{\n EC_GROUP *ret = NULL;\n int tmp = 0;\n if (params == NULL) {\n ECerr(EC_F_EC_GROUP_NEW_FROM_ECPKPARAMETERS, 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_GROUP_NEW_FROM_ECPKPARAMETERS,\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_GROUP_new_from_ecparameters(params->value.parameters);\n if (!ret) {\n ECerr(EC_F_EC_GROUP_NEW_FROM_ECPKPARAMETERS, 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_GROUP_NEW_FROM_ECPKPARAMETERS, EC_R_ASN1_ERROR);\n return NULL;\n }\n return ret;\n}', 'EC_GROUP *EC_GROUP_new_from_ecparameters(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_GROUP_NEW_FROM_ECPARAMETERS, 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_GROUP_NEW_FROM_ECPARAMETERS, 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_GROUP_NEW_FROM_ECPARAMETERS, 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_GROUP_NEW_FROM_ECPARAMETERS, 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_GROUP_NEW_FROM_ECPARAMETERS, 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_GROUP_NEW_FROM_ECPARAMETERS, EC_R_FIELD_TOO_LARGE);\n goto err;\n }\n if ((p = BN_new()) == NULL) {\n ECerr(EC_F_EC_GROUP_NEW_FROM_ECPARAMETERS, 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_GROUP_NEW_FROM_ECPARAMETERS, 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_GROUP_NEW_FROM_ECPARAMETERS,\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_GROUP_NEW_FROM_ECPARAMETERS, 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_GROUP_NEW_FROM_ECPARAMETERS,\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_GROUP_NEW_FROM_ECPARAMETERS, EC_R_NOT_IMPLEMENTED);\n goto err;\n } else {\n ECerr(EC_F_EC_GROUP_NEW_FROM_ECPARAMETERS, 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_GROUP_NEW_FROM_ECPARAMETERS, 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_GROUP_NEW_FROM_ECPARAMETERS, ERR_R_ASN1_LIB);\n goto err;\n }\n if (BN_is_negative(p) || BN_is_zero(p)) {\n ECerr(EC_F_EC_GROUP_NEW_FROM_ECPARAMETERS, 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_GROUP_NEW_FROM_ECPARAMETERS, 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_GROUP_NEW_FROM_ECPARAMETERS, EC_R_INVALID_FIELD);\n goto err;\n }\n if (ret == NULL) {\n ECerr(EC_F_EC_GROUP_NEW_FROM_ECPARAMETERS, 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_GROUP_NEW_FROM_ECPARAMETERS, 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_GROUP_NEW_FROM_ECPARAMETERS, 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_GROUP_NEW_FROM_ECPARAMETERS, ERR_R_EC_LIB);\n goto err;\n }\n if ((a = ASN1_INTEGER_to_BN(params->order, a)) == NULL) {\n ECerr(EC_F_EC_GROUP_NEW_FROM_ECPARAMETERS, ERR_R_ASN1_LIB);\n goto err;\n }\n if (BN_is_negative(a) || BN_is_zero(a)) {\n ECerr(EC_F_EC_GROUP_NEW_FROM_ECPARAMETERS, EC_R_INVALID_GROUP_ORDER);\n goto err;\n }\n if (BN_num_bits(a) > (int)field_bits + 1) {\n ECerr(EC_F_EC_GROUP_NEW_FROM_ECPARAMETERS, 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_GROUP_NEW_FROM_ECPARAMETERS, ERR_R_ASN1_LIB);\n goto err;\n }\n if (!EC_GROUP_set_generator(ret, point, a, b)) {\n ECerr(EC_F_EC_GROUP_NEW_FROM_ECPARAMETERS, 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}', 'BIGNUM *bn_wexpand(BIGNUM *a, int words)\n{\n return (words <= a->dmax) ? a : bn_expand2(a, words);\n}'] |
17,423 | 0 | https://github.com/libav/libav/blob/e3245b2631990fee05183cf12d5c860ef923b8d9/avconv.c/#L1833 | static void print_sdp(OutputFile *output_files, int n)
{
char sdp[2048];
int i;
AVFormatContext **avc = av_malloc(sizeof(*avc)*n);
if (!avc)
exit_program(1);
for (i = 0; i < n; i++)
avc[i] = output_files[i].ctx;
av_sdp_create(avc, n, sdp, sizeof(sdp));
printf("SDP:\n%s\n", sdp);
fflush(stdout);
av_freep(&avc);
} | ['static void print_sdp(OutputFile *output_files, int n)\n{\n char sdp[2048];\n int i;\n AVFormatContext **avc = av_malloc(sizeof(*avc)*n);\n if (!avc)\n exit_program(1);\n for (i = 0; i < n; i++)\n avc[i] = output_files[i].ctx;\n av_sdp_create(avc, n, sdp, sizeof(sdp));\n printf("SDP:\\n%s\\n", sdp);\n fflush(stdout);\n av_freep(&avc);\n}', 'void *av_malloc(size_t size)\n{\n void *ptr = NULL;\n#if CONFIG_MEMALIGN_HACK\n long diff;\n#endif\n if(size > (INT_MAX-32) )\n return NULL;\n#if CONFIG_MEMALIGN_HACK\n ptr = malloc(size+32);\n if(!ptr)\n return ptr;\n diff= ((-(long)ptr - 1)&31) + 1;\n ptr = (char*)ptr + diff;\n ((char*)ptr)[-1]= diff;\n#elif HAVE_POSIX_MEMALIGN\n if (posix_memalign(&ptr,32,size))\n ptr = NULL;\n#elif HAVE_MEMALIGN\n ptr = memalign(32,size);\n#else\n ptr = malloc(size);\n#endif\n return ptr;\n}'] |
17,424 | 0 | https://github.com/openssl/openssl/blob/5f50d597f2c9106824ea48f47e318f7b2d13a867/crypto/bn/bn_asm.c/#L405 | BN_ULONG bn_sub_words(BN_ULONG *r, const BN_ULONG *a, const BN_ULONG *b, int n)
{
BN_ULONG t1,t2;
int c=0;
assert(n >= 0);
if (n <= 0) return((BN_ULONG)0);
#ifndef OPENSSL_SMALL_FOOTPRINT
while (n&~3)
{
t1=a[0]; t2=b[0];
r[0]=(t1-t2-c)&BN_MASK2;
if (t1 != t2) c=(t1 < t2);
t1=a[1]; t2=b[1];
r[1]=(t1-t2-c)&BN_MASK2;
if (t1 != t2) c=(t1 < t2);
t1=a[2]; t2=b[2];
r[2]=(t1-t2-c)&BN_MASK2;
if (t1 != t2) c=(t1 < t2);
t1=a[3]; t2=b[3];
r[3]=(t1-t2-c)&BN_MASK2;
if (t1 != t2) c=(t1 < t2);
a+=4; b+=4; r+=4; n-=4;
}
#endif
while (n)
{
t1=a[0]; t2=b[0];
r[0]=(t1-t2-c)&BN_MASK2;
if (t1 != t2) c=(t1 < t2);
a++; b++; r++; n--;
}
return(c);
} | ['int BN_mod_exp_mont_consttime(BIGNUM *rr, const BIGNUM *a, const BIGNUM *p,\n\t\t const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *in_mont)\n\t{\n\tint i,bits,ret=0,idx,window,wvalue;\n\tint top;\n \tBIGNUM *r;\n\tconst BIGNUM *aa;\n\tBN_MONT_CTX *mont=NULL;\n\tint numPowers;\n\tunsigned char *powerbufFree=NULL;\n\tint powerbufLen = 0;\n\tunsigned char *powerbuf=NULL;\n\tBIGNUM *computeTemp=NULL, *am=NULL;\n\tbn_check_top(a);\n\tbn_check_top(p);\n\tbn_check_top(m);\n\ttop = m->top;\n\tif (!(m->d[0] & 1))\n\t\t{\n\t\tBNerr(BN_F_BN_MOD_EXP_MONT_CONSTTIME,BN_R_CALLED_WITH_EVEN_MODULUS);\n\t\treturn(0);\n\t\t}\n\tbits=BN_num_bits(p);\n\tif (bits == 0)\n\t\t{\n\t\tret = BN_one(rr);\n\t\treturn ret;\n\t\t}\n\tBN_CTX_start(ctx);\n\tr = BN_CTX_get(ctx);\n\tif (r == NULL) goto err;\n\tif (in_mont != NULL)\n\t\tmont=in_mont;\n\telse\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\twindow = BN_window_bits_for_ctime_exponent_size(bits);\n\tnumPowers = 1 << window;\n\tpowerbufLen = sizeof(m->d[0])*top*numPowers;\n\tif ((powerbufFree=(unsigned char*)OPENSSL_malloc(powerbufLen+MOD_EXP_CTIME_MIN_CACHE_LINE_WIDTH)) == NULL)\n\t\tgoto err;\n\tpowerbuf = MOD_EXP_CTIME_ALIGN(powerbufFree);\n\tmemset(powerbuf, 0, powerbufLen);\n \tif (!BN_to_montgomery(r,BN_value_one(),mont,ctx)) goto err;\n\tif (!MOD_EXP_CTIME_COPY_TO_PREBUF(r, top, powerbuf, 0, numPowers)) goto err;\n\tcomputeTemp = BN_CTX_get(ctx);\n\tam = BN_CTX_get(ctx);\n\tif (computeTemp==NULL || am==NULL) goto err;\n\tif (a->neg || BN_ucmp(a,m) >= 0)\n\t\t{\n\t\tif (!BN_mod(am,a,m,ctx))\n\t\t\tgoto err;\n\t\taa= am;\n\t\t}\n\telse\n\t\taa=a;\n\tif (!BN_to_montgomery(am,aa,mont,ctx)) goto err;\n\tif (!BN_copy(computeTemp, am)) goto err;\n\tif (!MOD_EXP_CTIME_COPY_TO_PREBUF(am, top, powerbuf, 1, numPowers)) goto err;\n\tif (window > 1)\n\t\t{\n\t\tfor (i=2; i<numPowers; i++)\n\t\t\t{\n\t\t\tif (!BN_mod_mul_montgomery(computeTemp,am,computeTemp,mont,ctx))\n\t\t\t\tgoto err;\n\t\t\tif (!MOD_EXP_CTIME_COPY_TO_PREBUF(computeTemp, top, powerbuf, i, numPowers)) goto err;\n\t\t\t}\n\t\t}\n \tbits = ((bits+window-1)/window)*window;\n \tidx=bits-1;\n \twhile (idx >= 0)\n \t\t{\n \t\twvalue=0;\n \t\tfor (i=0; i<window; i++,idx--)\n \t\t\t{\n\t\t\tif (!BN_mod_mul_montgomery(r,r,r,mont,ctx))\tgoto err;\n\t\t\twvalue = (wvalue<<1)+BN_is_bit_set(p,idx);\n \t\t\t}\n\t\tif (!MOD_EXP_CTIME_COPY_FROM_PREBUF(computeTemp, top, powerbuf, wvalue, numPowers)) goto err;\n \t\tif (!BN_mod_mul_montgomery(r,r,computeTemp,mont,ctx)) goto err;\n \t\t}\n\tif (!BN_from_montgomery(rr,r,mont,ctx)) goto err;\n\tret=1;\nerr:\n\tif ((in_mont == NULL) && (mont != NULL)) BN_MONT_CTX_free(mont);\n\tif (powerbuf!=NULL)\n\t\t{\n\t\tOPENSSL_cleanse(powerbuf,powerbufLen);\n\t\tOPENSSL_free(powerbufFree);\n\t\t}\n \tif (am!=NULL) BN_clear(am);\n \tif (computeTemp!=NULL) BN_clear(computeTemp);\n\tBN_CTX_end(ctx);\n\treturn(ret);\n\t}', 'const BIGNUM *BN_value_one(void)\n\t{\n\tstatic BN_ULONG data_one=1L;\n\tstatic BIGNUM const_one={&data_one,1,1,0,BN_FLG_STATIC_DATA};\n\treturn(&const_one);\n\t}', 'int BN_mod_mul_montgomery(BIGNUM *r, const BIGNUM *a, const BIGNUM *b,\n\t\t\t BN_MONT_CTX *mont, BN_CTX *ctx)\n\t{\n\tBIGNUM *tmp;\n\tint ret=0;\n#if defined(OPENSSL_BN_ASM_MONT) && defined(MONT_WORD)\n\tint num = mont->N.top;\n\tif (num>1 && a->top==num && b->top==num)\n\t\t{\n\t\tif (bn_wexpand(r,num) == NULL) return(0);\n\t\tif (bn_mul_mont(r->d,a->d,b->d,mont->N.d,mont->n0,num))\n\t\t\t{\n\t\t\tr->neg = a->neg^b->neg;\n\t\t\tr->top = num;\n\t\t\tbn_correct_top(r);\n\t\t\treturn(1);\n\t\t\t}\n\t\t}\n#endif\n\tBN_CTX_start(ctx);\n\ttmp = BN_CTX_get(ctx);\n\tif (tmp == NULL) goto err;\n\tbn_check_top(tmp);\n\tif (a == b)\n\t\t{\n\t\tif (!BN_sqr(tmp,a,ctx)) goto err;\n\t\t}\n\telse\n\t\t{\n\t\tif (!BN_mul(tmp,a,b,ctx)) goto err;\n\t\t}\n#ifdef MONT_WORD\n\tif (!BN_from_montgomery_word(r,tmp,mont)) goto err;\n#else\n\tif (!BN_from_montgomery(r,tmp,mont,ctx)) goto err;\n#endif\n\tbn_check_top(r);\n\tret=1;\nerr:\n\tBN_CTX_end(ctx);\n\treturn(ret);\n\t}', 'int BN_mul(BIGNUM *r, const BIGNUM *a, const BIGNUM *b, BN_CTX *ctx)\n\t{\n\tint ret=0;\n\tint top,al,bl;\n\tBIGNUM *rr;\n#if defined(BN_MUL_COMBA) || defined(BN_RECURSION)\n\tint i;\n#endif\n#ifdef BN_RECURSION\n\tBIGNUM *t=NULL;\n\tint j=0,k;\n#endif\n#ifdef BN_COUNT\n\tfprintf(stderr,"BN_mul %d * %d\\n",a->top,b->top);\n#endif\n\tbn_check_top(a);\n\tbn_check_top(b);\n\tbn_check_top(r);\n\tal=a->top;\n\tbl=b->top;\n\tif ((al == 0) || (bl == 0))\n\t\t{\n\t\tBN_zero(r);\n\t\treturn(1);\n\t\t}\n\ttop=al+bl;\n\tBN_CTX_start(ctx);\n\tif ((r == a) || (r == b))\n\t\t{\n\t\tif ((rr = BN_CTX_get(ctx)) == NULL) goto err;\n\t\t}\n\telse\n\t\trr = r;\n\trr->neg=a->neg^b->neg;\n#if defined(BN_MUL_COMBA) || defined(BN_RECURSION)\n\ti = al-bl;\n#endif\n#ifdef BN_MUL_COMBA\n\tif (i == 0)\n\t\t{\n# if 0\n\t\tif (al == 4)\n\t\t\t{\n\t\t\tif (bn_wexpand(rr,8) == NULL) goto err;\n\t\t\trr->top=8;\n\t\t\tbn_mul_comba4(rr->d,a->d,b->d);\n\t\t\tgoto end;\n\t\t\t}\n# endif\n\t\tif (al == 8)\n\t\t\t{\n\t\t\tif (bn_wexpand(rr,16) == NULL) goto err;\n\t\t\trr->top=16;\n\t\t\tbn_mul_comba8(rr->d,a->d,b->d);\n\t\t\tgoto end;\n\t\t\t}\n\t\t}\n#endif\n#ifdef BN_RECURSION\n\tif ((al >= BN_MULL_SIZE_NORMAL) && (bl >= BN_MULL_SIZE_NORMAL))\n\t\t{\n\t\tif (i >= -1 && i <= 1)\n\t\t\t{\n\t\t\tint sav_j =0;\n\t\t\tif (i >= 0)\n\t\t\t\t{\n\t\t\t\tj = BN_num_bits_word((BN_ULONG)al);\n\t\t\t\t}\n\t\t\tif (i == -1)\n\t\t\t\t{\n\t\t\t\tj = BN_num_bits_word((BN_ULONG)bl);\n\t\t\t\t}\n\t\t\tsav_j = j;\n\t\t\tj = 1<<(j-1);\n\t\t\tassert(j <= al || j <= bl);\n\t\t\tk = j+j;\n\t\t\tt = BN_CTX_get(ctx);\n\t\t\tif (al > j || bl > j)\n\t\t\t\t{\n\t\t\t\tbn_wexpand(t,k*4);\n\t\t\t\tbn_wexpand(rr,k*4);\n\t\t\t\tbn_mul_part_recursive(rr->d,a->d,b->d,\n\t\t\t\t\tj,al-j,bl-j,t->d);\n\t\t\t\t}\n\t\t\telse\n\t\t\t\t{\n\t\t\t\tbn_wexpand(t,k*2);\n\t\t\t\tbn_wexpand(rr,k*2);\n\t\t\t\tbn_mul_recursive(rr->d,a->d,b->d,\n\t\t\t\t\tj,al-j,bl-j,t->d);\n\t\t\t\t}\n\t\t\trr->top=top;\n\t\t\tgoto end;\n\t\t\t}\n#if 0\n\t\tif (i == 1 && !BN_get_flags(b,BN_FLG_STATIC_DATA))\n\t\t\t{\n\t\t\tBIGNUM *tmp_bn = (BIGNUM *)b;\n\t\t\tif (bn_wexpand(tmp_bn,al) == NULL) goto err;\n\t\t\ttmp_bn->d[bl]=0;\n\t\t\tbl++;\n\t\t\ti--;\n\t\t\t}\n\t\telse if (i == -1 && !BN_get_flags(a,BN_FLG_STATIC_DATA))\n\t\t\t{\n\t\t\tBIGNUM *tmp_bn = (BIGNUM *)a;\n\t\t\tif (bn_wexpand(tmp_bn,bl) == NULL) goto err;\n\t\t\ttmp_bn->d[al]=0;\n\t\t\tal++;\n\t\t\ti++;\n\t\t\t}\n\t\tif (i == 0)\n\t\t\t{\n\t\t\tj=BN_num_bits_word((BN_ULONG)al);\n\t\t\tj=1<<(j-1);\n\t\t\tk=j+j;\n\t\t\tt = BN_CTX_get(ctx);\n\t\t\tif (al == j)\n\t\t\t\t{\n\t\t\t\tif (bn_wexpand(t,k*2) == NULL) goto err;\n\t\t\t\tif (bn_wexpand(rr,k*2) == NULL) goto err;\n\t\t\t\tbn_mul_recursive(rr->d,a->d,b->d,al,t->d);\n\t\t\t\t}\n\t\t\telse\n\t\t\t\t{\n\t\t\t\tif (bn_wexpand(t,k*4) == NULL) goto err;\n\t\t\t\tif (bn_wexpand(rr,k*4) == NULL) goto err;\n\t\t\t\tbn_mul_part_recursive(rr->d,a->d,b->d,al-j,j,t->d);\n\t\t\t\t}\n\t\t\trr->top=top;\n\t\t\tgoto end;\n\t\t\t}\n#endif\n\t\t}\n#endif\n\tif (bn_wexpand(rr,top) == NULL) goto err;\n\trr->top=top;\n\tbn_mul_normal(rr->d,a->d,al,b->d,bl);\n#if defined(BN_MUL_COMBA) || defined(BN_RECURSION)\nend:\n#endif\n\tbn_correct_top(rr);\n\tif (r != rr) BN_copy(r,rr);\n\tret=1;\nerr:\n\tbn_check_top(r);\n\tBN_CTX_end(ctx);\n\treturn(ret);\n\t}', 'void bn_mul_part_recursive(BN_ULONG *r, BN_ULONG *a, BN_ULONG *b, int n,\n\t int tna, int tnb, BN_ULONG *t)\n\t{\n\tint i,j,n2=n*2;\n\tint c1,c2,neg,zero;\n\tBN_ULONG ln,lo,*p;\n# ifdef BN_COUNT\n\tfprintf(stderr," bn_mul_part_recursive (%d+%d) * (%d+%d)\\n",\n\t\ttna, n, tnb, n);\n# endif\n\tif (n < 8)\n\t\t{\n\t\tbn_mul_normal(r,a,n+tna,b,n+tnb);\n\t\treturn;\n\t\t}\n\tc1=bn_cmp_part_words(a,&(a[n]),tna,n-tna);\n\tc2=bn_cmp_part_words(&(b[n]),b,tnb,tnb-n);\n\tzero=neg=0;\n\tswitch (c1*3+c2)\n\t\t{\n\tcase -4:\n\t\tbn_sub_part_words(t, &(a[n]),a, tna,tna-n);\n\t\tbn_sub_part_words(&(t[n]),b, &(b[n]),tnb,n-tnb);\n\t\tbreak;\n\tcase -3:\n\t\tzero=1;\n\tcase -2:\n\t\tbn_sub_part_words(t, &(a[n]),a, tna,tna-n);\n\t\tbn_sub_part_words(&(t[n]),&(b[n]),b, tnb,tnb-n);\n\t\tneg=1;\n\t\tbreak;\n\tcase -1:\n\tcase 0:\n\tcase 1:\n\t\tzero=1;\n\tcase 2:\n\t\tbn_sub_part_words(t, a, &(a[n]),tna,n-tna);\n\t\tbn_sub_part_words(&(t[n]),b, &(b[n]),tnb,n-tnb);\n\t\tneg=1;\n\t\tbreak;\n\tcase 3:\n\t\tzero=1;\n\tcase 4:\n\t\tbn_sub_part_words(t, a, &(a[n]),tna,n-tna);\n\t\tbn_sub_part_words(&(t[n]),&(b[n]),b, tnb,tnb-n);\n\t\tbreak;\n\t\t}\n# if 0\n\tif (n == 4)\n\t\t{\n\t\tbn_mul_comba4(&(t[n2]),t,&(t[n]));\n\t\tbn_mul_comba4(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# endif\n\tif (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]),tna,&(b[n]),tnb);\n\t\tmemset(&(r[n2+tna+tnb]),0,sizeof(BN_ULONG)*(n2-tna-tnb));\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,0,0,p);\n\t\tbn_mul_recursive(r,a,b,n,0,0,p);\n\t\ti=n/2;\n\t\tif (tna > tnb)\n\t\t\tj = tna - i;\n\t\telse\n\t\t\tj = tnb - i;\n\t\tif (j == 0)\n\t\t\t{\n\t\t\tbn_mul_recursive(&(r[n2]),&(a[n]),&(b[n]),\n\t\t\t\ti,tna-i,tnb-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\ti,tna-i,tnb-i,p);\n\t\t\t\tmemset(&(r[n2+tna+tnb]),0,\n\t\t\t\t\tsizeof(BN_ULONG)*(n2-tna-tnb));\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 (tna < BN_MUL_RECURSIVE_SIZE_NORMAL\n\t\t\t\t&& tnb < BN_MUL_RECURSIVE_SIZE_NORMAL)\n\t\t\t\t{\n\t\t\t\tbn_mul_normal(&(r[n2]),&(a[n]),tna,&(b[n]),tnb);\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 < tna && i < tnb)\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\ti,tna-i,tnb-i,p);\n\t\t\t\t\t\tbreak;\n\t\t\t\t\t\t}\n\t\t\t\t\telse if (i <= tna && i <= tnb)\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,tna-i,tnb-i,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\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_part_words(const BN_ULONG *a, const BN_ULONG *b,\n\tint cl, int dl)\n\t{\n\tint n,i;\n\tn = cl-1;\n\tif (dl < 0)\n\t\t{\n\t\tfor (i=dl; i<0; i++)\n\t\t\t{\n\t\t\tif (b[n-i] != 0)\n\t\t\t\treturn -1;\n\t\t\t}\n\t\t}\n\tif (dl > 0)\n\t\t{\n\t\tfor (i=dl; i>0; i--)\n\t\t\t{\n\t\t\tif (a[n+i] != 0)\n\t\t\t\treturn 1;\n\t\t\t}\n\t\t}\n\treturn bn_cmp_words(a,b,cl);\n\t}', 'BN_ULONG bn_sub_part_words(BN_ULONG *r,\n\tconst BN_ULONG *a, const BN_ULONG *b,\n\tint cl, int dl)\n\t{\n\tBN_ULONG c, t;\n\tassert(cl >= 0);\n\tc = bn_sub_words(r, a, b, cl);\n\tif (dl == 0)\n\t\treturn c;\n\tr += cl;\n\ta += cl;\n\tb += cl;\n\tif (dl < 0)\n\t\t{\n#ifdef BN_COUNT\n\t\tfprintf(stderr, " bn_sub_part_words %d + %d (dl < 0, c = %d)\\n", cl, dl, c);\n#endif\n\t\tfor (;;)\n\t\t\t{\n\t\t\tt = b[0];\n\t\t\tr[0] = (0-t-c)&BN_MASK2;\n\t\t\tif (t != 0) c=1;\n\t\t\tif (++dl >= 0) break;\n\t\t\tt = b[1];\n\t\t\tr[1] = (0-t-c)&BN_MASK2;\n\t\t\tif (t != 0) c=1;\n\t\t\tif (++dl >= 0) break;\n\t\t\tt = b[2];\n\t\t\tr[2] = (0-t-c)&BN_MASK2;\n\t\t\tif (t != 0) c=1;\n\t\t\tif (++dl >= 0) break;\n\t\t\tt = b[3];\n\t\t\tr[3] = (0-t-c)&BN_MASK2;\n\t\t\tif (t != 0) c=1;\n\t\t\tif (++dl >= 0) break;\n\t\t\tb += 4;\n\t\t\tr += 4;\n\t\t\t}\n\t\t}\n\telse\n\t\t{\n\t\tint save_dl = dl;\n#ifdef BN_COUNT\n\t\tfprintf(stderr, " bn_sub_part_words %d + %d (dl > 0, c = %d)\\n", cl, dl, c);\n#endif\n\t\twhile(c)\n\t\t\t{\n\t\t\tt = a[0];\n\t\t\tr[0] = (t-c)&BN_MASK2;\n\t\t\tif (t != 0) c=0;\n\t\t\tif (--dl <= 0) break;\n\t\t\tt = a[1];\n\t\t\tr[1] = (t-c)&BN_MASK2;\n\t\t\tif (t != 0) c=0;\n\t\t\tif (--dl <= 0) break;\n\t\t\tt = a[2];\n\t\t\tr[2] = (t-c)&BN_MASK2;\n\t\t\tif (t != 0) c=0;\n\t\t\tif (--dl <= 0) break;\n\t\t\tt = a[3];\n\t\t\tr[3] = (t-c)&BN_MASK2;\n\t\t\tif (t != 0) c=0;\n\t\t\tif (--dl <= 0) break;\n\t\t\tsave_dl = dl;\n\t\t\ta += 4;\n\t\t\tr += 4;\n\t\t\t}\n\t\tif (dl > 0)\n\t\t\t{\n#ifdef BN_COUNT\n\t\t\tfprintf(stderr, " bn_sub_part_words %d + %d (dl > 0, c == 0)\\n", cl, dl);\n#endif\n\t\t\tif (save_dl > dl)\n\t\t\t\t{\n\t\t\t\tswitch (save_dl - dl)\n\t\t\t\t\t{\n\t\t\t\tcase 1:\n\t\t\t\t\tr[1] = a[1];\n\t\t\t\t\tif (--dl <= 0) break;\n\t\t\t\tcase 2:\n\t\t\t\t\tr[2] = a[2];\n\t\t\t\t\tif (--dl <= 0) break;\n\t\t\t\tcase 3:\n\t\t\t\t\tr[3] = a[3];\n\t\t\t\t\tif (--dl <= 0) break;\n\t\t\t\t\t}\n\t\t\t\ta += 4;\n\t\t\t\tr += 4;\n\t\t\t\t}\n\t\t\t}\n\t\tif (dl > 0)\n\t\t\t{\n#ifdef BN_COUNT\n\t\t\tfprintf(stderr, " bn_sub_part_words %d + %d (dl > 0, copy)\\n", cl, dl);\n#endif\n\t\t\tfor(;;)\n\t\t\t\t{\n\t\t\t\tr[0] = a[0];\n\t\t\t\tif (--dl <= 0) break;\n\t\t\t\tr[1] = a[1];\n\t\t\t\tif (--dl <= 0) break;\n\t\t\t\tr[2] = a[2];\n\t\t\t\tif (--dl <= 0) break;\n\t\t\t\tr[3] = a[3];\n\t\t\t\tif (--dl <= 0) break;\n\t\t\t\ta += 4;\n\t\t\t\tr += 4;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\treturn c;\n\t}', 'BN_ULONG bn_sub_words(BN_ULONG *r, const BN_ULONG *a, const BN_ULONG *b, int n)\n {\n\tBN_ULONG t1,t2;\n\tint c=0;\n\tassert(n >= 0);\n\tif (n <= 0) return((BN_ULONG)0);\n#ifndef OPENSSL_SMALL_FOOTPRINT\n\twhile (n&~3)\n\t\t{\n\t\tt1=a[0]; t2=b[0];\n\t\tr[0]=(t1-t2-c)&BN_MASK2;\n\t\tif (t1 != t2) c=(t1 < t2);\n\t\tt1=a[1]; t2=b[1];\n\t\tr[1]=(t1-t2-c)&BN_MASK2;\n\t\tif (t1 != t2) c=(t1 < t2);\n\t\tt1=a[2]; t2=b[2];\n\t\tr[2]=(t1-t2-c)&BN_MASK2;\n\t\tif (t1 != t2) c=(t1 < t2);\n\t\tt1=a[3]; t2=b[3];\n\t\tr[3]=(t1-t2-c)&BN_MASK2;\n\t\tif (t1 != t2) c=(t1 < t2);\n\t\ta+=4; b+=4; r+=4; n-=4;\n\t\t}\n#endif\n\twhile (n)\n\t\t{\n\t\tt1=a[0]; t2=b[0];\n\t\tr[0]=(t1-t2-c)&BN_MASK2;\n\t\tif (t1 != t2) c=(t1 < t2);\n\t\ta++; b++; r++; n--;\n\t\t}\n\treturn(c);\n\t}'] |
17,425 | 0 | https://github.com/libav/libav/blob/e5b0fc170f85b00f7dd0ac514918fb5c95253d39/libavcodec/bitstream.h/#L139 | static inline uint64_t get_val(BitstreamContext *bc, unsigned n)
{
#ifdef BITSTREAM_READER_LE
uint64_t ret = bc->bits & ((UINT64_C(1) << n) - 1);
bc->bits >>= n;
#else
uint64_t ret = bc->bits >> (64 - n);
bc->bits <<= n;
#endif
bc->bits_left -= n;
return ret;
} | ['static int gsm_decode_block(AVCodecContext *avctx, int16_t *samples,\n BitstreamContext *bc, int mode)\n{\n GSMContext *ctx = avctx->priv_data;\n int i;\n int16_t *ref_dst = ctx->ref_buf + 120;\n int *lar = ctx->lar[ctx->lar_idx];\n lar[0] = decode_log_area(bitstream_read(bc, 6), 13107, 1 << 15);\n lar[1] = decode_log_area(bitstream_read(bc, 6), 13107, 1 << 15);\n lar[2] = decode_log_area(bitstream_read(bc, 5), 13107, (1 << 14) + 2048 * 2);\n lar[3] = decode_log_area(bitstream_read(bc, 5), 13107, (1 << 14) - 2560 * 2);\n lar[4] = decode_log_area(bitstream_read(bc, 4), 19223, (1 << 13) + 94 * 2);\n lar[5] = decode_log_area(bitstream_read(bc, 4), 17476, (1 << 13) - 1792 * 2);\n lar[6] = decode_log_area(bitstream_read(bc, 3), 31454, (1 << 12) - 341 * 2);\n lar[7] = decode_log_area(bitstream_read(bc, 3), 29708, (1 << 12) - 1144 * 2);\n for (i = 0; i < 4; i++) {\n int lag = bitstream_read(bc, 7);\n int gain_idx = bitstream_read(bc, 2);\n int offset = bitstream_read(bc, 2);\n lag = av_clip(lag, 40, 120);\n long_term_synth(ref_dst, lag, gain_idx);\n apcm_dequant_add(bc, ref_dst + offset, ff_gsm_apcm_bits[mode][i]);\n ref_dst += 40;\n }\n memcpy(ctx->ref_buf, ctx->ref_buf + 160, 120 * sizeof(*ctx->ref_buf));\n short_term_synth(ctx, samples, ctx->ref_buf + 120);\n ctx->msr = postprocess(samples, ctx->msr);\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}'] |
17,426 | 0 | https://github.com/openssl/openssl/blob/95dc05bc6d0dfe0f3f3681f5e27afbc3f7a35eea/crypto/bn/bn_asm.c/#L541 | void bn_mul_comba8(BN_ULONG *r, BN_ULONG *a, BN_ULONG *b)
{
#ifdef BN_LLONG
BN_ULLONG t;
#else
BN_ULONG bl,bh;
#endif
BN_ULONG t1,t2;
BN_ULONG c1,c2,c3;
c1=0;
c2=0;
c3=0;
mul_add_c(a[0],b[0],c1,c2,c3);
r[0]=c1;
c1=0;
mul_add_c(a[0],b[1],c2,c3,c1);
mul_add_c(a[1],b[0],c2,c3,c1);
r[1]=c2;
c2=0;
mul_add_c(a[2],b[0],c3,c1,c2);
mul_add_c(a[1],b[1],c3,c1,c2);
mul_add_c(a[0],b[2],c3,c1,c2);
r[2]=c3;
c3=0;
mul_add_c(a[0],b[3],c1,c2,c3);
mul_add_c(a[1],b[2],c1,c2,c3);
mul_add_c(a[2],b[1],c1,c2,c3);
mul_add_c(a[3],b[0],c1,c2,c3);
r[3]=c1;
c1=0;
mul_add_c(a[4],b[0],c2,c3,c1);
mul_add_c(a[3],b[1],c2,c3,c1);
mul_add_c(a[2],b[2],c2,c3,c1);
mul_add_c(a[1],b[3],c2,c3,c1);
mul_add_c(a[0],b[4],c2,c3,c1);
r[4]=c2;
c2=0;
mul_add_c(a[0],b[5],c3,c1,c2);
mul_add_c(a[1],b[4],c3,c1,c2);
mul_add_c(a[2],b[3],c3,c1,c2);
mul_add_c(a[3],b[2],c3,c1,c2);
mul_add_c(a[4],b[1],c3,c1,c2);
mul_add_c(a[5],b[0],c3,c1,c2);
r[5]=c3;
c3=0;
mul_add_c(a[6],b[0],c1,c2,c3);
mul_add_c(a[5],b[1],c1,c2,c3);
mul_add_c(a[4],b[2],c1,c2,c3);
mul_add_c(a[3],b[3],c1,c2,c3);
mul_add_c(a[2],b[4],c1,c2,c3);
mul_add_c(a[1],b[5],c1,c2,c3);
mul_add_c(a[0],b[6],c1,c2,c3);
r[6]=c1;
c1=0;
mul_add_c(a[0],b[7],c2,c3,c1);
mul_add_c(a[1],b[6],c2,c3,c1);
mul_add_c(a[2],b[5],c2,c3,c1);
mul_add_c(a[3],b[4],c2,c3,c1);
mul_add_c(a[4],b[3],c2,c3,c1);
mul_add_c(a[5],b[2],c2,c3,c1);
mul_add_c(a[6],b[1],c2,c3,c1);
mul_add_c(a[7],b[0],c2,c3,c1);
r[7]=c2;
c2=0;
mul_add_c(a[7],b[1],c3,c1,c2);
mul_add_c(a[6],b[2],c3,c1,c2);
mul_add_c(a[5],b[3],c3,c1,c2);
mul_add_c(a[4],b[4],c3,c1,c2);
mul_add_c(a[3],b[5],c3,c1,c2);
mul_add_c(a[2],b[6],c3,c1,c2);
mul_add_c(a[1],b[7],c3,c1,c2);
r[8]=c3;
c3=0;
mul_add_c(a[2],b[7],c1,c2,c3);
mul_add_c(a[3],b[6],c1,c2,c3);
mul_add_c(a[4],b[5],c1,c2,c3);
mul_add_c(a[5],b[4],c1,c2,c3);
mul_add_c(a[6],b[3],c1,c2,c3);
mul_add_c(a[7],b[2],c1,c2,c3);
r[9]=c1;
c1=0;
mul_add_c(a[7],b[3],c2,c3,c1);
mul_add_c(a[6],b[4],c2,c3,c1);
mul_add_c(a[5],b[5],c2,c3,c1);
mul_add_c(a[4],b[6],c2,c3,c1);
mul_add_c(a[3],b[7],c2,c3,c1);
r[10]=c2;
c2=0;
mul_add_c(a[4],b[7],c3,c1,c2);
mul_add_c(a[5],b[6],c3,c1,c2);
mul_add_c(a[6],b[5],c3,c1,c2);
mul_add_c(a[7],b[4],c3,c1,c2);
r[11]=c3;
c3=0;
mul_add_c(a[7],b[5],c1,c2,c3);
mul_add_c(a[6],b[6],c1,c2,c3);
mul_add_c(a[5],b[7],c1,c2,c3);
r[12]=c1;
c1=0;
mul_add_c(a[6],b[7],c2,c3,c1);
mul_add_c(a[7],b[6],c2,c3,c1);
r[13]=c2;
c2=0;
mul_add_c(a[7],b[7],c3,c1,c2);
r[14]=c3;
r[15]=c1;
} | ['int BN_is_prime(BIGNUM *a, int checks, void (*callback)(P_I_I_P),\n\t BN_CTX *ctx_passed, char *cb_arg)\n\t{\n\tint i,j,c2=0,ret= -1;\n\tBIGNUM *check;\n\tBN_CTX *ctx=NULL,*ctx2=NULL;\n\tBN_MONT_CTX *mont=NULL;\n\tif (!BN_is_odd(a))\n\t\treturn(0);\n\tif (ctx_passed != NULL)\n\t\tctx=ctx_passed;\n\telse\n\t\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\tcheck= &(ctx->bn[ctx->tos++]);\n\tif (!BN_MONT_CTX_set(mont,a,ctx2)) goto err;\n\tfor (i=0; i<checks; i++)\n\t\t{\n\t\tif (!BN_rand(check,BN_num_bits(a)-1,0,0)) goto err;\n\t\tj=witness(check,a,ctx,ctx2,mont);\n\t\tif (j == -1) goto err;\n\t\tif (j)\n\t\t\t{\n\t\t\tret=0;\n\t\t\tgoto err;\n\t\t\t}\n\t\tif (callback != NULL) callback(1,c2++,cb_arg);\n\t\t}\n\tret=1;\nerr:\n\tctx->tos--;\n\tif ((ctx_passed == NULL) && (ctx != NULL))\n\t\tBN_CTX_free(ctx);\n\tif (ctx2 != NULL)\n\t\tBN_CTX_free(ctx2);\n\tif (mont != NULL) BN_MONT_CTX_free(mont);\n\treturn(ret);\n\t}', 'int BN_MONT_CTX_set(BN_MONT_CTX *mont, BIGNUM *mod, BN_CTX *ctx)\n\t{\n\tBIGNUM Ri,*R;\n\tBN_init(&Ri);\n\tR= &(mont->RR);\n\tBN_copy(&(mont->N),mod);\n#ifdef BN_RECURSION_MONT\n\tif (mont->N.top < BN_MONT_CTX_SET_SIZE_WORD)\n#endif\n\t\t{\n\t\tBIGNUM tmod;\n\t\tBN_ULONG buf[2];\n\t\tmont->use_word=1;\n\t\tmont->ri=(BN_num_bits(mod)+(BN_BITS2-1))/BN_BITS2*BN_BITS2;\n\t\tBN_zero(R);\n\t\tBN_set_bit(R,BN_BITS2);\n\t\tbuf[0]=mod->d[0];\n\t\tbuf[1]=0;\n\t\ttmod.d=buf;\n\t\ttmod.top=1;\n\t\ttmod.max=mod->max;\n\t\ttmod.neg=mod->neg;\n\t\tif ((BN_mod_inverse(&Ri,R,&tmod,ctx)) == NULL)\n\t\t\tgoto err;\n\t\tBN_lshift(&Ri,&Ri,BN_BITS2);\n\t\tif (!BN_is_zero(&Ri))\n\t\t\t{\n#if 1\n\t\t\tBN_sub_word(&Ri,1);\n#else\n\t\t\tBN_usub(&Ri,&Ri,BN_value_one());\n#endif\n\t\t\t}\n\t\telse\n\t\t\t{\n\t\t\tBN_set_word(&Ri,BN_MASK2);\n\t\t\t}\n\t\tBN_div(&Ri,NULL,&Ri,&tmod,ctx);\n\t\tmont->n0=Ri.d[0];\n\t\tBN_free(&Ri);\n\t\t}\n#ifdef BN_RECURSION_MONT\n\telse\n\t\t{\n\t\tmont->use_word=0;\n\t\tmont->ri=(BN_num_bits(mod)+(BN_BITS2-1))/BN_BITS2*BN_BITS2;\n#if 1\n\t\tBN_zero(R);\n\t\tBN_set_bit(R,mont->ri);\n#else\n\t\tBN_lshift(R,BN_value_one(),mont->ri);\n#endif\n\t\tif ((BN_mod_inverse(&Ri,R,mod,ctx)) == NULL)\n\t\t\tgoto err;\n\t\tBN_lshift(&Ri,&Ri,mont->ri);\n#if 1\n\t\tBN_sub_word(&Ri,1);\n#else\n\t\tBN_usub(&Ri,&Ri,BN_value_one());\n#endif\n\t\tBN_div(&(mont->Ni),NULL,&Ri,mod,ctx);\n\t\tBN_free(&Ri);\n\t\t}\n#endif\n#if 1\n\tBN_zero(&(mont->RR));\n\tBN_set_bit(&(mont->RR),mont->ri*2);\n#else\n\tBN_lshift(mont->RR,BN_value_one(),mont->ri*2);\n#endif\n\tBN_mod(&(mont->RR),&(mont->RR),&(mont->N),ctx);\n\treturn(1);\nerr:\n\treturn(0);\n\t}', 'int BN_set_word(BIGNUM *a, BN_ULONG w)\n\t{\n\tint i,n;\n\tif (bn_expand(a,sizeof(BN_ULONG)*8) == NULL) return(0);\n\tn=sizeof(BN_ULONG)/BN_BYTES;\n\ta->neg=0;\n\ta->top=0;\n\ta->d[0]=(BN_ULONG)w&BN_MASK2;\n\tif (a->d[0] != 0) a->top=1;\n\tfor (i=1; i<n; i++)\n\t\t{\n#ifndef SIXTY_FOUR_BIT\n\t\tw>>=BN_BITS4;\n\t\tw>>=BN_BITS4;\n#endif\n\t\ta->d[i]=(BN_ULONG)w&BN_MASK2;\n\t\tif (a->d[i] != 0) a->top=i+1;\n\t\t}\n\treturn(1);\n\t}', 'int BN_set_bit(BIGNUM *a, int n)\n\t{\n\tint i,j,k;\n\ti=n/BN_BITS2;\n\tj=n%BN_BITS2;\n\tif (a->top <= i)\n\t\t{\n\t\tif (bn_wexpand(a,i+1) == NULL) return(0);\n\t\tfor(k=a->top; k<i+1; k++)\n\t\t\ta->d[k]=0;\n\t\ta->top=i+1;\n\t\t}\n\ta->d[i]|=(1L<<j);\n\treturn(1);\n\t}', 'static int witness(BIGNUM *a, BIGNUM *n, BN_CTX *ctx, BN_CTX *ctx2,\n\t BN_MONT_CTX *mont)\n\t{\n\tint k,i,ret= -1,good;\n\tBIGNUM *d,*dd,*tmp,*d1,*d2,*n1;\n\tBIGNUM *mont_one,*mont_n1,*mont_a;\n\td1= &(ctx->bn[ctx->tos]);\n\td2= &(ctx->bn[ctx->tos+1]);\n\tn1= &(ctx->bn[ctx->tos+2]);\n\tctx->tos+=3;\n\tmont_one= &(ctx2->bn[ctx2->tos]);\n\tmont_n1= &(ctx2->bn[ctx2->tos+1]);\n\tmont_a= &(ctx2->bn[ctx2->tos+2]);\n\tctx2->tos+=3;\n\td=d1;\n\tdd=d2;\n\tif (!BN_one(d)) goto err;\n\tif (!BN_sub(n1,n,d)) goto err;\n\tk=BN_num_bits(n1);\n\tif (!BN_to_montgomery(mont_one,BN_value_one(),mont,ctx2)) goto err;\n\tif (!BN_to_montgomery(mont_n1,n1,mont,ctx2)) goto err;\n\tif (!BN_to_montgomery(mont_a,a,mont,ctx2)) goto err;\n\tBN_copy(d,mont_one);\n\tfor (i=k-1; i>=0; i--)\n\t\t{\n\t\tif (\t(BN_cmp(d,mont_one) != 0) &&\n\t\t\t(BN_cmp(d,mont_n1) != 0))\n\t\t\tgood=1;\n\t\telse\n\t\t\tgood=0;\n\t\tBN_mod_mul_montgomery(dd,d,d,mont,ctx2);\n\t\tif (good && (BN_cmp(dd,mont_one) == 0))\n\t\t\t{\n\t\t\tret=1;\n\t\t\tgoto err;\n\t\t\t}\n\t\tif (BN_is_bit_set(n1,i))\n\t\t\t{\n\t\t\tBN_mod_mul_montgomery(d,dd,mont_a,mont,ctx2);\n\t\t\t}\n\t\telse\n\t\t\t{\n\t\t\ttmp=d;\n\t\t\td=dd;\n\t\t\tdd=tmp;\n\t\t\t}\n\t\t}\n\tif (BN_cmp(d,mont_one) == 0)\n\t\ti=0;\n\telse\ti=1;\n\tret=i;\nerr:\n\tctx->tos-=3;\n\tctx2->tos-=3;\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_comba8(BN_ULONG *r, BN_ULONG *a, BN_ULONG *b)\n\t{\n#ifdef BN_LLONG\n\tBN_ULLONG t;\n#else\n\tBN_ULONG bl,bh;\n#endif\n\tBN_ULONG t1,t2;\n\tBN_ULONG c1,c2,c3;\n\tc1=0;\n\tc2=0;\n\tc3=0;\n\tmul_add_c(a[0],b[0],c1,c2,c3);\n\tr[0]=c1;\n\tc1=0;\n\tmul_add_c(a[0],b[1],c2,c3,c1);\n\tmul_add_c(a[1],b[0],c2,c3,c1);\n\tr[1]=c2;\n\tc2=0;\n\tmul_add_c(a[2],b[0],c3,c1,c2);\n\tmul_add_c(a[1],b[1],c3,c1,c2);\n\tmul_add_c(a[0],b[2],c3,c1,c2);\n\tr[2]=c3;\n\tc3=0;\n\tmul_add_c(a[0],b[3],c1,c2,c3);\n\tmul_add_c(a[1],b[2],c1,c2,c3);\n\tmul_add_c(a[2],b[1],c1,c2,c3);\n\tmul_add_c(a[3],b[0],c1,c2,c3);\n\tr[3]=c1;\n\tc1=0;\n\tmul_add_c(a[4],b[0],c2,c3,c1);\n\tmul_add_c(a[3],b[1],c2,c3,c1);\n\tmul_add_c(a[2],b[2],c2,c3,c1);\n\tmul_add_c(a[1],b[3],c2,c3,c1);\n\tmul_add_c(a[0],b[4],c2,c3,c1);\n\tr[4]=c2;\n\tc2=0;\n\tmul_add_c(a[0],b[5],c3,c1,c2);\n\tmul_add_c(a[1],b[4],c3,c1,c2);\n\tmul_add_c(a[2],b[3],c3,c1,c2);\n\tmul_add_c(a[3],b[2],c3,c1,c2);\n\tmul_add_c(a[4],b[1],c3,c1,c2);\n\tmul_add_c(a[5],b[0],c3,c1,c2);\n\tr[5]=c3;\n\tc3=0;\n\tmul_add_c(a[6],b[0],c1,c2,c3);\n\tmul_add_c(a[5],b[1],c1,c2,c3);\n\tmul_add_c(a[4],b[2],c1,c2,c3);\n\tmul_add_c(a[3],b[3],c1,c2,c3);\n\tmul_add_c(a[2],b[4],c1,c2,c3);\n\tmul_add_c(a[1],b[5],c1,c2,c3);\n\tmul_add_c(a[0],b[6],c1,c2,c3);\n\tr[6]=c1;\n\tc1=0;\n\tmul_add_c(a[0],b[7],c2,c3,c1);\n\tmul_add_c(a[1],b[6],c2,c3,c1);\n\tmul_add_c(a[2],b[5],c2,c3,c1);\n\tmul_add_c(a[3],b[4],c2,c3,c1);\n\tmul_add_c(a[4],b[3],c2,c3,c1);\n\tmul_add_c(a[5],b[2],c2,c3,c1);\n\tmul_add_c(a[6],b[1],c2,c3,c1);\n\tmul_add_c(a[7],b[0],c2,c3,c1);\n\tr[7]=c2;\n\tc2=0;\n\tmul_add_c(a[7],b[1],c3,c1,c2);\n\tmul_add_c(a[6],b[2],c3,c1,c2);\n\tmul_add_c(a[5],b[3],c3,c1,c2);\n\tmul_add_c(a[4],b[4],c3,c1,c2);\n\tmul_add_c(a[3],b[5],c3,c1,c2);\n\tmul_add_c(a[2],b[6],c3,c1,c2);\n\tmul_add_c(a[1],b[7],c3,c1,c2);\n\tr[8]=c3;\n\tc3=0;\n\tmul_add_c(a[2],b[7],c1,c2,c3);\n\tmul_add_c(a[3],b[6],c1,c2,c3);\n\tmul_add_c(a[4],b[5],c1,c2,c3);\n\tmul_add_c(a[5],b[4],c1,c2,c3);\n\tmul_add_c(a[6],b[3],c1,c2,c3);\n\tmul_add_c(a[7],b[2],c1,c2,c3);\n\tr[9]=c1;\n\tc1=0;\n\tmul_add_c(a[7],b[3],c2,c3,c1);\n\tmul_add_c(a[6],b[4],c2,c3,c1);\n\tmul_add_c(a[5],b[5],c2,c3,c1);\n\tmul_add_c(a[4],b[6],c2,c3,c1);\n\tmul_add_c(a[3],b[7],c2,c3,c1);\n\tr[10]=c2;\n\tc2=0;\n\tmul_add_c(a[4],b[7],c3,c1,c2);\n\tmul_add_c(a[5],b[6],c3,c1,c2);\n\tmul_add_c(a[6],b[5],c3,c1,c2);\n\tmul_add_c(a[7],b[4],c3,c1,c2);\n\tr[11]=c3;\n\tc3=0;\n\tmul_add_c(a[7],b[5],c1,c2,c3);\n\tmul_add_c(a[6],b[6],c1,c2,c3);\n\tmul_add_c(a[5],b[7],c1,c2,c3);\n\tr[12]=c1;\n\tc1=0;\n\tmul_add_c(a[6],b[7],c2,c3,c1);\n\tmul_add_c(a[7],b[6],c2,c3,c1);\n\tr[13]=c2;\n\tc2=0;\n\tmul_add_c(a[7],b[7],c3,c1,c2);\n\tr[14]=c3;\n\tr[15]=c1;\n\t}'] |
17,427 | 0 | https://github.com/openssl/openssl/blob/fa9bb6201e1d16ba8ccab938833d140ef81a7f73/crypto/bn/bn_ctx.c/#L327 | static unsigned int BN_STACK_pop(BN_STACK *st)
{
return st->indexes[--(st->depth)];
} | ['int ossl_ecdsa_verify_sig(const unsigned char *dgst, int dgst_len,\n const ECDSA_SIG *sig, EC_KEY *eckey)\n{\n int ret = -1, i;\n BN_CTX *ctx;\n const BIGNUM *order;\n BIGNUM *u1, *u2, *m, *X;\n EC_POINT *point = NULL;\n const EC_GROUP *group;\n const EC_POINT *pub_key;\n if (eckey == NULL || (group = EC_KEY_get0_group(eckey)) == NULL ||\n (pub_key = EC_KEY_get0_public_key(eckey)) == NULL || sig == NULL) {\n ECerr(EC_F_OSSL_ECDSA_VERIFY_SIG, EC_R_MISSING_PARAMETERS);\n return -1;\n }\n ctx = BN_CTX_new();\n if (ctx == NULL) {\n ECerr(EC_F_OSSL_ECDSA_VERIFY_SIG, ERR_R_MALLOC_FAILURE);\n return -1;\n }\n BN_CTX_start(ctx);\n u1 = BN_CTX_get(ctx);\n u2 = BN_CTX_get(ctx);\n m = BN_CTX_get(ctx);\n X = BN_CTX_get(ctx);\n if (X == NULL) {\n ECerr(EC_F_OSSL_ECDSA_VERIFY_SIG, ERR_R_BN_LIB);\n goto err;\n }\n order = EC_GROUP_get0_order(group);\n if (order == NULL) {\n ECerr(EC_F_OSSL_ECDSA_VERIFY_SIG, ERR_R_EC_LIB);\n goto err;\n }\n if (BN_is_zero(sig->r) || BN_is_negative(sig->r) ||\n BN_ucmp(sig->r, order) >= 0 || BN_is_zero(sig->s) ||\n BN_is_negative(sig->s) || BN_ucmp(sig->s, order) >= 0) {\n ECerr(EC_F_OSSL_ECDSA_VERIFY_SIG, EC_R_BAD_SIGNATURE);\n ret = 0;\n goto err;\n }\n if (!BN_mod_inverse(u2, sig->s, order, ctx)) {\n ECerr(EC_F_OSSL_ECDSA_VERIFY_SIG, ERR_R_BN_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_VERIFY_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_VERIFY_SIG, ERR_R_BN_LIB);\n goto err;\n }\n if (!BN_mod_mul(u1, m, u2, order, ctx)) {\n ECerr(EC_F_OSSL_ECDSA_VERIFY_SIG, ERR_R_BN_LIB);\n goto err;\n }\n if (!BN_mod_mul(u2, sig->r, u2, order, ctx)) {\n ECerr(EC_F_OSSL_ECDSA_VERIFY_SIG, ERR_R_BN_LIB);\n goto err;\n }\n if ((point = EC_POINT_new(group)) == NULL) {\n ECerr(EC_F_OSSL_ECDSA_VERIFY_SIG, ERR_R_MALLOC_FAILURE);\n goto err;\n }\n if (!EC_POINT_mul(group, point, u1, pub_key, u2, ctx)) {\n ECerr(EC_F_OSSL_ECDSA_VERIFY_SIG, ERR_R_EC_LIB);\n goto err;\n }\n if (EC_METHOD_get_field_type(EC_GROUP_method_of(group)) ==\n NID_X9_62_prime_field) {\n if (!EC_POINT_get_affine_coordinates_GFp(group, point, X, NULL, ctx)) {\n ECerr(EC_F_OSSL_ECDSA_VERIFY_SIG, ERR_R_EC_LIB);\n goto err;\n }\n }\n#ifndef OPENSSL_NO_EC2M\n else {\n if (!EC_POINT_get_affine_coordinates_GF2m(group, point, X, NULL, ctx)) {\n ECerr(EC_F_OSSL_ECDSA_VERIFY_SIG, ERR_R_EC_LIB);\n goto err;\n }\n }\n#endif\n if (!BN_nnmod(u1, X, order, ctx)) {\n ECerr(EC_F_OSSL_ECDSA_VERIFY_SIG, ERR_R_BN_LIB);\n goto err;\n }\n ret = (BN_ucmp(u1, sig->r) == 0);\n err:\n BN_CTX_end(ctx);\n BN_CTX_free(ctx);\n EC_POINT_free(point);\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_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}'] |
17,428 | 0 | https://github.com/openssl/openssl/blob/8b0d4242404f9e5da26e7594fa0864b2df4601af/crypto/bn/bn_lib.c/#L271 | static BN_ULONG *bn_expand_internal(const BIGNUM *b, int words)
{
BN_ULONG *a = NULL;
bn_check_top(b);
if (words > (INT_MAX / (4 * BN_BITS2))) {
BNerr(BN_F_BN_EXPAND_INTERNAL, BN_R_BIGNUM_TOO_LONG);
return NULL;
}
if (BN_get_flags(b, BN_FLG_STATIC_DATA)) {
BNerr(BN_F_BN_EXPAND_INTERNAL, BN_R_EXPAND_ON_STATIC_BIGNUM_DATA);
return (NULL);
}
if (BN_get_flags(b, BN_FLG_SECURE))
a = OPENSSL_secure_zalloc(words * sizeof(*a));
else
a = OPENSSL_zalloc(words * sizeof(*a));
if (a == NULL) {
BNerr(BN_F_BN_EXPAND_INTERNAL, ERR_R_MALLOC_FAILURE);
return (NULL);
}
assert(b->top <= words);
if (b->top > 0)
memcpy(a, b->d, sizeof(*a) * b->top);
return a;
} | ['static int tls_process_ske_srp(SSL *s, PACKET *pkt, EVP_PKEY **pkey, int *al)\n{\n#ifndef OPENSSL_NO_SRP\n PACKET prime, generator, salt, server_pub;\n if (!PACKET_get_length_prefixed_2(pkt, &prime)\n || !PACKET_get_length_prefixed_2(pkt, &generator)\n || !PACKET_get_length_prefixed_1(pkt, &salt)\n || !PACKET_get_length_prefixed_2(pkt, &server_pub)) {\n *al = SSL_AD_DECODE_ERROR;\n SSLerr(SSL_F_TLS_PROCESS_SKE_SRP, SSL_R_LENGTH_MISMATCH);\n return 0;\n }\n if ((s->srp_ctx.N =\n BN_bin2bn(PACKET_data(&prime),\n (int)PACKET_remaining(&prime), NULL)) == NULL\n || (s->srp_ctx.g =\n BN_bin2bn(PACKET_data(&generator),\n (int)PACKET_remaining(&generator), NULL)) == NULL\n || (s->srp_ctx.s =\n BN_bin2bn(PACKET_data(&salt),\n (int)PACKET_remaining(&salt), NULL)) == NULL\n || (s->srp_ctx.B =\n BN_bin2bn(PACKET_data(&server_pub),\n (int)PACKET_remaining(&server_pub), NULL)) == NULL) {\n *al = SSL_AD_INTERNAL_ERROR;\n SSLerr(SSL_F_TLS_PROCESS_SKE_SRP, ERR_R_BN_LIB);\n return 0;\n }\n if (!srp_verify_server_param(s, al)) {\n *al = SSL_AD_DECODE_ERROR;\n SSLerr(SSL_F_TLS_PROCESS_SKE_SRP, SSL_R_BAD_SRP_PARAMETERS);\n return 0;\n }\n if (s->s3->tmp.new_cipher->algorithm_auth & (SSL_aRSA | SSL_aDSS))\n *pkey = X509_get0_pubkey(s->session->peer);\n return 1;\n#else\n SSLerr(SSL_F_TLS_PROCESS_SKE_SRP, ERR_R_INTERNAL_ERROR);\n *al = SSL_AD_INTERNAL_ERROR;\n return 0;\n#endif\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 = 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}'] |
17,429 | 0 | https://github.com/openssl/openssl/blob/fa9bb6201e1d16ba8ccab938833d140ef81a7f73/ssl/statem/statem_dtls.c/#L477 | int dtls_get_message(SSL *s, int *mt, unsigned long *len)
{
struct hm_header_st *msg_hdr;
unsigned char *p;
unsigned long msg_len;
int ok;
long tmplen;
msg_hdr = &s->d1->r_msg_hdr;
memset(msg_hdr, 0, sizeof(*msg_hdr));
again:
ok = dtls_get_reassembled_message(s, &tmplen);
if (tmplen == DTLS1_HM_BAD_FRAGMENT
|| tmplen == DTLS1_HM_FRAGMENT_RETRY) {
goto again;
} else if (tmplen <= 0 && !ok) {
return 0;
}
*mt = s->s3->tmp.message_type;
p = (unsigned char *)s->init_buf->data;
if (*mt == SSL3_MT_CHANGE_CIPHER_SPEC) {
if (s->msg_callback) {
s->msg_callback(0, s->version, SSL3_RT_CHANGE_CIPHER_SPEC,
p, 1, s, s->msg_callback_arg);
}
*len = (unsigned long)tmplen;
return 1;
}
msg_len = msg_hdr->msg_len;
*(p++) = msg_hdr->type;
l2n3(msg_len, p);
s2n(msg_hdr->seq, p);
l2n3(0, p);
l2n3(msg_len, p);
if (s->version != DTLS1_BAD_VER) {
p -= DTLS1_HM_HEADER_LENGTH;
msg_len += DTLS1_HM_HEADER_LENGTH;
}
ssl3_finish_mac(s, p, msg_len);
if (s->msg_callback)
s->msg_callback(0, s->version, SSL3_RT_HANDSHAKE,
p, msg_len, s, s->msg_callback_arg);
memset(msg_hdr, 0, sizeof(*msg_hdr));
s->d1->handshake_read_seq++;
s->init_msg = s->init_buf->data + DTLS1_HM_HEADER_LENGTH;
*len = s->init_num;
return 1;
} | ['int dtls_get_message(SSL *s, int *mt, unsigned long *len)\n{\n struct hm_header_st *msg_hdr;\n unsigned char *p;\n unsigned long msg_len;\n int ok;\n long tmplen;\n msg_hdr = &s->d1->r_msg_hdr;\n memset(msg_hdr, 0, sizeof(*msg_hdr));\n again:\n ok = dtls_get_reassembled_message(s, &tmplen);\n if (tmplen == DTLS1_HM_BAD_FRAGMENT\n || tmplen == DTLS1_HM_FRAGMENT_RETRY) {\n goto again;\n } else if (tmplen <= 0 && !ok) {\n return 0;\n }\n *mt = s->s3->tmp.message_type;\n p = (unsigned char *)s->init_buf->data;\n if (*mt == SSL3_MT_CHANGE_CIPHER_SPEC) {\n if (s->msg_callback) {\n s->msg_callback(0, s->version, SSL3_RT_CHANGE_CIPHER_SPEC,\n p, 1, s, s->msg_callback_arg);\n }\n *len = (unsigned long)tmplen;\n return 1;\n }\n msg_len = msg_hdr->msg_len;\n *(p++) = msg_hdr->type;\n l2n3(msg_len, p);\n s2n(msg_hdr->seq, p);\n l2n3(0, p);\n l2n3(msg_len, p);\n if (s->version != DTLS1_BAD_VER) {\n p -= DTLS1_HM_HEADER_LENGTH;\n msg_len += DTLS1_HM_HEADER_LENGTH;\n }\n ssl3_finish_mac(s, p, msg_len);\n if (s->msg_callback)\n s->msg_callback(0, s->version, SSL3_RT_HANDSHAKE,\n p, msg_len, s, s->msg_callback_arg);\n memset(msg_hdr, 0, sizeof(*msg_hdr));\n s->d1->handshake_read_seq++;\n s->init_msg = s->init_buf->data + DTLS1_HM_HEADER_LENGTH;\n *len = s->init_num;\n return 1;\n}', 'static int dtls_get_reassembled_message(SSL *s, long *len)\n{\n unsigned char wire[DTLS1_HM_HEADER_LENGTH];\n unsigned long mlen, frag_off, frag_len;\n int i, al, recvd_type;\n struct hm_header_st msg_hdr;\n int ok;\n redo:\n if ((frag_len = dtls1_retrieve_buffered_fragment(s, &ok)) || ok) {\n if (ok)\n s->init_num = frag_len;\n *len = frag_len;\n return ok;\n }\n i = s->method->ssl_read_bytes(s, SSL3_RT_HANDSHAKE, &recvd_type, wire,\n DTLS1_HM_HEADER_LENGTH, 0);\n if (i <= 0) {\n s->rwstate = SSL_READING;\n *len = i;\n return 0;\n }\n if(recvd_type == SSL3_RT_CHANGE_CIPHER_SPEC) {\n if (wire[0] != SSL3_MT_CCS) {\n al = SSL_AD_UNEXPECTED_MESSAGE;\n SSLerr(SSL_F_DTLS_GET_REASSEMBLED_MESSAGE,\n SSL_R_BAD_CHANGE_CIPHER_SPEC);\n goto f_err;\n }\n memcpy(s->init_buf->data, wire, i);\n s->init_num = i - 1;\n s->init_msg = s->init_buf->data + 1;\n s->s3->tmp.message_type = SSL3_MT_CHANGE_CIPHER_SPEC;\n s->s3->tmp.message_size = i - 1;\n *len = i - 1;\n return 1;\n }\n if (i != DTLS1_HM_HEADER_LENGTH) {\n al = SSL_AD_UNEXPECTED_MESSAGE;\n SSLerr(SSL_F_DTLS_GET_REASSEMBLED_MESSAGE, SSL_R_UNEXPECTED_MESSAGE);\n goto f_err;\n }\n dtls1_get_message_header(wire, &msg_hdr);\n mlen = msg_hdr.msg_len;\n frag_off = msg_hdr.frag_off;\n frag_len = msg_hdr.frag_len;\n if (frag_len > RECORD_LAYER_get_rrec_length(&s->rlayer)) {\n al = SSL3_AD_ILLEGAL_PARAMETER;\n SSLerr(SSL_F_DTLS_GET_REASSEMBLED_MESSAGE, SSL_R_BAD_LENGTH);\n goto f_err;\n }\n if (msg_hdr.seq != s->d1->handshake_read_seq) {\n *len = dtls1_process_out_of_seq_message(s, &msg_hdr, &ok);\n return ok;\n }\n if (frag_len && frag_len < mlen) {\n *len = dtls1_reassemble_fragment(s, &msg_hdr, &ok);\n return ok;\n }\n if (!s->server && s->d1->r_msg_hdr.frag_off == 0 &&\n wire[0] == SSL3_MT_HELLO_REQUEST) {\n if (wire[1] == 0 && wire[2] == 0 && wire[3] == 0) {\n if (s->msg_callback)\n s->msg_callback(0, s->version, SSL3_RT_HANDSHAKE,\n wire, DTLS1_HM_HEADER_LENGTH, s,\n s->msg_callback_arg);\n s->init_num = 0;\n goto redo;\n } else {\n al = SSL_AD_UNEXPECTED_MESSAGE;\n SSLerr(SSL_F_DTLS_GET_REASSEMBLED_MESSAGE,\n SSL_R_UNEXPECTED_MESSAGE);\n goto f_err;\n }\n }\n if ((al = dtls1_preprocess_fragment(s, &msg_hdr)))\n goto f_err;\n if (frag_len > 0) {\n unsigned char *p =\n (unsigned char *)s->init_buf->data + DTLS1_HM_HEADER_LENGTH;\n i = s->method->ssl_read_bytes(s, SSL3_RT_HANDSHAKE, NULL,\n &p[frag_off], frag_len, 0);\n if (i <= 0) {\n s->rwstate = SSL_READING;\n *len = i;\n return 0;\n }\n } else\n i = 0;\n if (i != (int)frag_len) {\n al = SSL3_AD_ILLEGAL_PARAMETER;\n SSLerr(SSL_F_DTLS_GET_REASSEMBLED_MESSAGE, SSL3_AD_ILLEGAL_PARAMETER);\n goto f_err;\n }\n *len = s->init_num = frag_len;\n return 1;\n f_err:\n ssl3_send_alert(s, SSL3_AL_FATAL, al);\n s->init_num = 0;\n *len = -1;\n return 0;\n}', 'static int dtls1_retrieve_buffered_fragment(SSL *s, int *ok)\n{\n pitem *item;\n hm_fragment *frag;\n int al;\n *ok = 0;\n item = pqueue_peek(s->d1->buffered_messages);\n if (item == NULL)\n return 0;\n frag = (hm_fragment *)item->data;\n if (frag->reassembly != NULL)\n return 0;\n if (s->d1->handshake_read_seq == frag->msg_header.seq) {\n unsigned long frag_len = frag->msg_header.frag_len;\n pqueue_pop(s->d1->buffered_messages);\n al = dtls1_preprocess_fragment(s, &frag->msg_header);\n if (al == 0) {\n unsigned char *p =\n (unsigned char *)s->init_buf->data + DTLS1_HM_HEADER_LENGTH;\n memcpy(&p[frag->msg_header.frag_off], frag->fragment,\n frag->msg_header.frag_len);\n }\n dtls1_hm_fragment_free(frag);\n pitem_free(item);\n if (al == 0) {\n *ok = 1;\n return frag_len;\n }\n ssl3_send_alert(s, SSL3_AL_FATAL, al);\n s->init_num = 0;\n *ok = 0;\n return -1;\n } else\n return 0;\n}'] |
17,430 | 0 | https://github.com/libav/libav/blob/ae2abc69db54552dd6b687ad170ce3cb57882617/libavcodec/smacker.c/#L584 | static int smka_decode_frame(AVCodecContext *avctx, void *data, int *data_size, AVPacket *avpkt)
{
const uint8_t *buf = avpkt->data;
int buf_size = avpkt->size;
GetBitContext gb;
HuffContext h[4];
VLC vlc[4];
int16_t *samples = data;
int8_t *samples8 = data;
int val;
int i, res;
int unp_size;
int bits, stereo;
int pred[2] = {0, 0};
unp_size = AV_RL32(buf);
init_get_bits(&gb, buf + 4, (buf_size - 4) * 8);
if(!get_bits1(&gb)){
av_log(avctx, AV_LOG_INFO, "Sound: no data\n");
*data_size = 0;
return 1;
}
stereo = get_bits1(&gb);
bits = get_bits1(&gb);
if (unp_size & 0xC0000000 || unp_size > *data_size) {
av_log(avctx, AV_LOG_ERROR, "Frame is too large to fit in buffer\n");
return -1;
}
memset(vlc, 0, sizeof(VLC) * 4);
memset(h, 0, sizeof(HuffContext) * 4);
for(i = 0; i < (1 << (bits + stereo)); i++) {
h[i].length = 256;
h[i].maxlength = 0;
h[i].current = 0;
h[i].bits = av_mallocz(256 * 4);
h[i].lengths = av_mallocz(256 * sizeof(int));
h[i].values = av_mallocz(256 * sizeof(int));
skip_bits1(&gb);
smacker_decode_tree(&gb, &h[i], 0, 0);
skip_bits1(&gb);
if(h[i].current > 1) {
res = init_vlc(&vlc[i], SMKTREE_BITS, h[i].length,
h[i].lengths, sizeof(int), sizeof(int),
h[i].bits, sizeof(uint32_t), sizeof(uint32_t), INIT_VLC_LE);
if(res < 0) {
av_log(avctx, AV_LOG_ERROR, "Cannot build VLC table\n");
return -1;
}
}
}
if(bits) {
for(i = stereo; i >= 0; i--)
pred[i] = bswap_16(get_bits(&gb, 16));
for(i = 0; i < stereo; i++)
*samples++ = pred[i];
for(i = 0; i < unp_size / 2; i++) {
if(i & stereo) {
if(vlc[2].table)
res = get_vlc2(&gb, vlc[2].table, SMKTREE_BITS, 3);
else
res = 0;
val = h[2].values[res];
if(vlc[3].table)
res = get_vlc2(&gb, vlc[3].table, SMKTREE_BITS, 3);
else
res = 0;
val |= h[3].values[res] << 8;
pred[1] += (int16_t)val;
*samples++ = pred[1];
} else {
if(vlc[0].table)
res = get_vlc2(&gb, vlc[0].table, SMKTREE_BITS, 3);
else
res = 0;
val = h[0].values[res];
if(vlc[1].table)
res = get_vlc2(&gb, vlc[1].table, SMKTREE_BITS, 3);
else
res = 0;
val |= h[1].values[res] << 8;
pred[0] += val;
*samples++ = pred[0];
}
}
} else {
for(i = stereo; i >= 0; i--)
pred[i] = get_bits(&gb, 8);
for(i = 0; i < stereo; i++)
*samples8++ = pred[i];
for(i = 0; i < unp_size; i++) {
if(i & stereo){
if(vlc[1].table)
res = get_vlc2(&gb, vlc[1].table, SMKTREE_BITS, 3);
else
res = 0;
pred[1] += (int8_t)h[1].values[res];
*samples8++ = pred[1];
} else {
if(vlc[0].table)
res = get_vlc2(&gb, vlc[0].table, SMKTREE_BITS, 3);
else
res = 0;
pred[0] += (int8_t)h[0].values[res];
*samples8++ = pred[0];
}
}
}
for(i = 0; i < 4; i++) {
if(vlc[i].table)
free_vlc(&vlc[i]);
if(h[i].bits)
av_free(h[i].bits);
if(h[i].lengths)
av_free(h[i].lengths);
if(h[i].values)
av_free(h[i].values);
}
*data_size = unp_size;
return buf_size;
} | ['static int smka_decode_frame(AVCodecContext *avctx, void *data, int *data_size, AVPacket *avpkt)\n{\n const uint8_t *buf = avpkt->data;\n int buf_size = avpkt->size;\n GetBitContext gb;\n HuffContext h[4];\n VLC vlc[4];\n int16_t *samples = data;\n int8_t *samples8 = data;\n int val;\n int i, res;\n int unp_size;\n int bits, stereo;\n int pred[2] = {0, 0};\n unp_size = AV_RL32(buf);\n init_get_bits(&gb, buf + 4, (buf_size - 4) * 8);\n if(!get_bits1(&gb)){\n av_log(avctx, AV_LOG_INFO, "Sound: no data\\n");\n *data_size = 0;\n return 1;\n }\n stereo = get_bits1(&gb);\n bits = get_bits1(&gb);\n if (unp_size & 0xC0000000 || unp_size > *data_size) {\n av_log(avctx, AV_LOG_ERROR, "Frame is too large to fit in buffer\\n");\n return -1;\n }\n memset(vlc, 0, sizeof(VLC) * 4);\n memset(h, 0, sizeof(HuffContext) * 4);\n for(i = 0; i < (1 << (bits + stereo)); i++) {\n h[i].length = 256;\n h[i].maxlength = 0;\n h[i].current = 0;\n h[i].bits = av_mallocz(256 * 4);\n h[i].lengths = av_mallocz(256 * sizeof(int));\n h[i].values = av_mallocz(256 * sizeof(int));\n skip_bits1(&gb);\n smacker_decode_tree(&gb, &h[i], 0, 0);\n skip_bits1(&gb);\n if(h[i].current > 1) {\n res = init_vlc(&vlc[i], SMKTREE_BITS, h[i].length,\n h[i].lengths, sizeof(int), sizeof(int),\n h[i].bits, sizeof(uint32_t), sizeof(uint32_t), INIT_VLC_LE);\n if(res < 0) {\n av_log(avctx, AV_LOG_ERROR, "Cannot build VLC table\\n");\n return -1;\n }\n }\n }\n if(bits) {\n for(i = stereo; i >= 0; i--)\n pred[i] = bswap_16(get_bits(&gb, 16));\n for(i = 0; i < stereo; i++)\n *samples++ = pred[i];\n for(i = 0; i < unp_size / 2; i++) {\n if(i & stereo) {\n if(vlc[2].table)\n res = get_vlc2(&gb, vlc[2].table, SMKTREE_BITS, 3);\n else\n res = 0;\n val = h[2].values[res];\n if(vlc[3].table)\n res = get_vlc2(&gb, vlc[3].table, SMKTREE_BITS, 3);\n else\n res = 0;\n val |= h[3].values[res] << 8;\n pred[1] += (int16_t)val;\n *samples++ = pred[1];\n } else {\n if(vlc[0].table)\n res = get_vlc2(&gb, vlc[0].table, SMKTREE_BITS, 3);\n else\n res = 0;\n val = h[0].values[res];\n if(vlc[1].table)\n res = get_vlc2(&gb, vlc[1].table, SMKTREE_BITS, 3);\n else\n res = 0;\n val |= h[1].values[res] << 8;\n pred[0] += val;\n *samples++ = pred[0];\n }\n }\n } else {\n for(i = stereo; i >= 0; i--)\n pred[i] = get_bits(&gb, 8);\n for(i = 0; i < stereo; i++)\n *samples8++ = pred[i];\n for(i = 0; i < unp_size; i++) {\n if(i & stereo){\n if(vlc[1].table)\n res = get_vlc2(&gb, vlc[1].table, SMKTREE_BITS, 3);\n else\n res = 0;\n pred[1] += (int8_t)h[1].values[res];\n *samples8++ = pred[1];\n } else {\n if(vlc[0].table)\n res = get_vlc2(&gb, vlc[0].table, SMKTREE_BITS, 3);\n else\n res = 0;\n pred[0] += (int8_t)h[0].values[res];\n *samples8++ = pred[0];\n }\n }\n }\n for(i = 0; i < 4; i++) {\n if(vlc[i].table)\n free_vlc(&vlc[i]);\n if(h[i].bits)\n av_free(h[i].bits);\n if(h[i].lengths)\n av_free(h[i].lengths);\n if(h[i].values)\n av_free(h[i].values);\n }\n *data_size = unp_size;\n return buf_size;\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_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}'] |
17,431 | 0 | https://github.com/openssl/openssl/blob/0185803cc224c8d88ca39ae07c296a4f1854e478/test/dummytest.c/#L32 | int main(int argc, char *argv[])
{
char *p, *q = 0, *program;
p = strrchr(argv[0], '/');
if (!p) p = strrchr(argv[0], '\\');
#ifdef OPENSSL_SYS_VMS
if (!p) p = strrchr(argv[0], ']');
if (p) q = strrchr(p, '>');
if (q) p = q;
if (!p) p = strrchr(argv[0], ':');
q = 0;
#endif
if (p) p++;
if (!p) p = argv[0];
if (p) q = strchr(p, '.');
if (p && !q) q = p + strlen(p);
if (!p)
program = BUF_strdup("(unknown)");
else
{
program = OPENSSL_malloc((q - p) + 1);
strncpy(program, p, q - p);
program[q - p] = '\0';
}
for(p = program; *p; p++)
if (islower((unsigned char)(*p)))
*p = toupper((unsigned char)(*p));
q = strstr(program, "TEST");
if (q > p && q[-1] == '_') q--;
*q = '\0';
printf("No %s support\n", program);
OPENSSL_free(program);
return(0);
} | ['int main(int argc, char *argv[])\n\t{\n\tchar *p, *q = 0, *program;\n\tp = strrchr(argv[0], \'/\');\n\tif (!p) p = strrchr(argv[0], \'\\\\\');\n#ifdef OPENSSL_SYS_VMS\n\tif (!p) p = strrchr(argv[0], \']\');\n\tif (p) q = strrchr(p, \'>\');\n\tif (q) p = q;\n\tif (!p) p = strrchr(argv[0], \':\');\n\tq = 0;\n#endif\n\tif (p) p++;\n\tif (!p) p = argv[0];\n\tif (p) q = strchr(p, \'.\');\n\tif (p && !q) q = p + strlen(p);\n\tif (!p)\n\t\tprogram = BUF_strdup("(unknown)");\n\telse\n\t\t{\n\t\tprogram = OPENSSL_malloc((q - p) + 1);\n\t\tstrncpy(program, p, q - p);\n\t\tprogram[q - p] = \'\\0\';\n\t\t}\n\tfor(p = program; *p; p++)\n\t\tif (islower((unsigned char)(*p)))\n\t\t\t*p = toupper((unsigned char)(*p));\n\tq = strstr(program, "TEST");\n\tif (q > p && q[-1] == \'_\') q--;\n\t*q = \'\\0\';\n\tprintf("No %s support\\n", program);\n\tOPENSSL_free(program);\n\treturn(0);\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}'] |
17,432 | 0 | https://github.com/libav/libav/blob/dad7a9c7c0ae8ebc56f2e3a24e6fa4da5c2cd491/libavcodec/bitstream.h/#L246 | static inline void bitstream_skip(BitstreamContext *bc, unsigned n)
{
if (n <= bc->bits_left)
skip_remaining(bc, n);
else {
n -= bc->bits_left;
skip_remaining(bc, bc->bits_left);
if (n >= 64) {
unsigned skip = n / 8;
n -= skip * 8;
bc->ptr += skip;
}
refill_64(bc);
if (n)
skip_remaining(bc, n);
}
} | ['static inline int get_ue_code(BitstreamContext *bc, int order)\n{\n if (order) {\n int ret = get_ue_golomb(bc) << order;\n return ret + bitstream_read(bc, order);\n }\n return get_ue_golomb(bc);\n}', 'static inline int get_ue_golomb(BitstreamContext *bc)\n{\n unsigned int buf;\n buf = bitstream_peek(bc, 32);\n if (buf >= (1 << 27)) {\n buf >>= 32 - 9;\n bitstream_skip(bc, ff_golomb_vlc_len[buf]);\n return ff_ue_golomb_vlc_code[buf];\n } else {\n int log = 2 * av_log2(buf) - 31;\n buf >>= log;\n buf--;\n bitstream_skip(bc, 32 - log);\n return buf;\n }\n}', 'static inline void bitstream_skip(BitstreamContext *bc, unsigned n)\n{\n if (n <= bc->bits_left)\n skip_remaining(bc, n);\n else {\n n -= bc->bits_left;\n skip_remaining(bc, bc->bits_left);\n if (n >= 64) {\n unsigned skip = n / 8;\n n -= skip * 8;\n bc->ptr += skip;\n }\n refill_64(bc);\n if (n)\n skip_remaining(bc, n);\n }\n}'] |
17,433 | 0 | https://github.com/openssl/openssl/blob/6ea3bca427b3e759939a63555821d0c4678dd79c/test/evp_extra_test.c/#L265 | static int test_EVP_DigestSignInit(void)
{
int ret = 0;
EVP_PKEY *pkey = NULL;
unsigned char *sig = NULL;
size_t sig_len = 0;
EVP_MD_CTX *md_ctx, *md_ctx_verify = NULL;
if (!TEST_ptr(md_ctx = EVP_MD_CTX_new())
|| !TEST_ptr(md_ctx_verify = EVP_MD_CTX_new())
|| !TEST_ptr(pkey = load_example_rsa_key()))
goto out;
if (!TEST_true(EVP_DigestSignInit(md_ctx, NULL, EVP_sha256(), NULL, pkey))
|| !TEST_true(EVP_DigestSignUpdate(md_ctx, kMsg, sizeof(kMsg))))
goto out;
if (!TEST_true(EVP_DigestSignFinal(md_ctx, NULL, &sig_len))
|| !TEST_size_t_eq(sig_len, (size_t)EVP_PKEY_size(pkey)))
goto out;
if (!TEST_ptr(sig = OPENSSL_malloc(sig_len))
|| !TEST_true(EVP_DigestSignFinal(md_ctx, sig, &sig_len)))
goto out;
if (!TEST_true(EVP_DigestVerifyInit(md_ctx_verify, NULL, EVP_sha256(),
NULL, pkey))
|| !TEST_true(EVP_DigestVerifyUpdate(md_ctx_verify,
kMsg, sizeof(kMsg)))
|| !TEST_true(EVP_DigestVerifyFinal(md_ctx_verify, sig, sig_len)))
goto out;
ret = 1;
out:
EVP_MD_CTX_free(md_ctx);
EVP_MD_CTX_free(md_ctx_verify);
EVP_PKEY_free(pkey);
OPENSSL_free(sig);
return ret;
} | ['static int test_EVP_DigestSignInit(void)\n{\n int ret = 0;\n EVP_PKEY *pkey = NULL;\n unsigned char *sig = NULL;\n size_t sig_len = 0;\n EVP_MD_CTX *md_ctx, *md_ctx_verify = NULL;\n if (!TEST_ptr(md_ctx = EVP_MD_CTX_new())\n || !TEST_ptr(md_ctx_verify = EVP_MD_CTX_new())\n || !TEST_ptr(pkey = load_example_rsa_key()))\n goto out;\n if (!TEST_true(EVP_DigestSignInit(md_ctx, NULL, EVP_sha256(), NULL, pkey))\n || !TEST_true(EVP_DigestSignUpdate(md_ctx, kMsg, sizeof(kMsg))))\n goto out;\n if (!TEST_true(EVP_DigestSignFinal(md_ctx, NULL, &sig_len))\n || !TEST_size_t_eq(sig_len, (size_t)EVP_PKEY_size(pkey)))\n goto out;\n if (!TEST_ptr(sig = OPENSSL_malloc(sig_len))\n || !TEST_true(EVP_DigestSignFinal(md_ctx, sig, &sig_len)))\n goto out;\n if (!TEST_true(EVP_DigestVerifyInit(md_ctx_verify, NULL, EVP_sha256(),\n NULL, pkey))\n || !TEST_true(EVP_DigestVerifyUpdate(md_ctx_verify,\n kMsg, sizeof(kMsg)))\n || !TEST_true(EVP_DigestVerifyFinal(md_ctx_verify, sig, sig_len)))\n goto out;\n ret = 1;\n out:\n EVP_MD_CTX_free(md_ctx);\n EVP_MD_CTX_free(md_ctx_verify);\n EVP_PKEY_free(pkey);\n OPENSSL_free(sig);\n return ret;\n}', 'EVP_MD_CTX *EVP_MD_CTX_new(void)\n{\n return OPENSSL_zalloc(sizeof(EVP_MD_CTX));\n}', 'void *CRYPTO_zalloc(size_t num, const char *file, int line)\n{\n void *ret = CRYPTO_malloc(num, file, line);\n FAILTEST();\n if (ret != NULL)\n memset(ret, 0, num);\n return ret;\n}', 'void *CRYPTO_malloc(size_t num, const char *file, int line)\n{\n void *ret = NULL;\n if (malloc_impl != NULL && malloc_impl != CRYPTO_malloc)\n return malloc_impl(num, file, line);\n if (num == 0)\n return NULL;\n FAILTEST();\n allow_customize = 0;\n#ifndef OPENSSL_NO_CRYPTO_MDEBUG\n if (call_malloc_debug) {\n CRYPTO_mem_debug_malloc(NULL, num, 0, file, line);\n ret = malloc(num);\n CRYPTO_mem_debug_malloc(ret, num, 1, file, line);\n } else {\n ret = malloc(num);\n }\n#else\n osslargused(file); osslargused(line);\n ret = malloc(num);\n#endif\n return ret;\n}', '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}', 'void EVP_MD_CTX_free(EVP_MD_CTX *ctx)\n{\n EVP_MD_CTX_reset(ctx);\n OPENSSL_free(ctx);\n}', 'void CRYPTO_free(void *str, const char *file, int line)\n{\n if (free_impl != NULL && free_impl != &CRYPTO_free) {\n free_impl(str, file, line);\n return;\n }\n#ifndef OPENSSL_NO_CRYPTO_MDEBUG\n if (call_malloc_debug) {\n CRYPTO_mem_debug_free(str, 0, file, line);\n free(str);\n CRYPTO_mem_debug_free(str, 1, file, line);\n } else {\n free(str);\n }\n#else\n free(str);\n#endif\n}'] |
17,434 | 0 | https://github.com/libav/libav/blob/6cecd63005b29a1dc3a5104e6ac85fd112705122/libavcodec/interplayvideo.c/#L417 | static int ipvideo_decode_block_opcode_0xA(IpvideoContext *s)
{
int x, y;
unsigned char P[4];
int flags = 0;
CHECK_STREAM_PTR(24);
if (s->stream_ptr[0] <= s->stream_ptr[1]) {
CHECK_STREAM_PTR(32);
for (y = 0; y < 16; y++) {
if (!(y & 3)) {
memcpy(P, s->stream_ptr, 4);
s->stream_ptr += 4;
flags = bytestream_get_le32(&s->stream_ptr);
}
for (x = 0; x < 4; x++, flags >>= 2)
*s->pixel_ptr++ = P[flags & 0x03];
s->pixel_ptr += s->stride - 4;
if (y == 7) s->pixel_ptr -= 8 * s->stride - 4;
}
} else {
int vert = s->stream_ptr[12] <= s->stream_ptr[13];
uint64_t flags = 0;
for (y = 0; y < 16; y++) {
if (!(y & 7)) {
memcpy(P, s->stream_ptr, 4);
s->stream_ptr += 4;
flags = bytestream_get_le64(&s->stream_ptr);
}
for (x = 0; x < 4; x++, flags >>= 2)
*s->pixel_ptr++ = P[flags & 0x03];
if (vert) {
s->pixel_ptr += s->stride - 4;
if (y == 7) s->pixel_ptr -= 8 * s->stride - 4;
} else if (y & 1) s->pixel_ptr += s->line_inc;
}
}
return 0;
} | ['static int ipvideo_decode_block_opcode_0xA(IpvideoContext *s)\n{\n int x, y;\n unsigned char P[4];\n int flags = 0;\n CHECK_STREAM_PTR(24);\n if (s->stream_ptr[0] <= s->stream_ptr[1]) {\n CHECK_STREAM_PTR(32);\n for (y = 0; y < 16; y++) {\n if (!(y & 3)) {\n memcpy(P, s->stream_ptr, 4);\n s->stream_ptr += 4;\n flags = bytestream_get_le32(&s->stream_ptr);\n }\n for (x = 0; x < 4; x++, flags >>= 2)\n *s->pixel_ptr++ = P[flags & 0x03];\n s->pixel_ptr += s->stride - 4;\n if (y == 7) s->pixel_ptr -= 8 * s->stride - 4;\n }\n } else {\n int vert = s->stream_ptr[12] <= s->stream_ptr[13];\n uint64_t flags = 0;\n for (y = 0; y < 16; y++) {\n if (!(y & 7)) {\n memcpy(P, s->stream_ptr, 4);\n s->stream_ptr += 4;\n flags = bytestream_get_le64(&s->stream_ptr);\n }\n for (x = 0; x < 4; x++, flags >>= 2)\n *s->pixel_ptr++ = P[flags & 0x03];\n if (vert) {\n s->pixel_ptr += s->stride - 4;\n if (y == 7) s->pixel_ptr -= 8 * s->stride - 4;\n } else if (y & 1) s->pixel_ptr += s->line_inc;\n }\n }\n return 0;\n}'] |
17,435 | 0 | https://github.com/libav/libav/blob/3ec394ea823c2a6e65a6abbdb2041ce1c66964f8/libavcodec/roqaudioenc.c/#L76 | static int roq_dpcm_encode_init(AVCodecContext *avctx)
{
ROQDPCMContext_t *context = avctx->priv_data;
if (avctx->channels > 2) {
av_log(avctx, AV_LOG_ERROR, "Audio must be mono or stereo\n");
return -1;
}
if (avctx->sample_rate != 22050) {
av_log(avctx, AV_LOG_ERROR, "Audio must be 22050 Hz\n");
return -1;
}
if (avctx->sample_fmt != SAMPLE_FMT_S16) {
av_log(avctx, AV_LOG_ERROR, "Audio must be signed 16-bit\n");
return -1;
}
roq_dpcm_table_init();
avctx->frame_size = ROQ_FIRST_FRAME_SIZE;
context->lastSample[0] = context->lastSample[1] = 0;
avctx->coded_frame= avcodec_alloc_frame();
avctx->coded_frame->key_frame= 1;
return 0;
} | ['static int roq_dpcm_encode_init(AVCodecContext *avctx)\n{\n ROQDPCMContext_t *context = avctx->priv_data;\n if (avctx->channels > 2) {\n av_log(avctx, AV_LOG_ERROR, "Audio must be mono or stereo\\n");\n return -1;\n }\n if (avctx->sample_rate != 22050) {\n av_log(avctx, AV_LOG_ERROR, "Audio must be 22050 Hz\\n");\n return -1;\n }\n if (avctx->sample_fmt != SAMPLE_FMT_S16) {\n av_log(avctx, AV_LOG_ERROR, "Audio must be signed 16-bit\\n");\n return -1;\n }\n roq_dpcm_table_init();\n avctx->frame_size = ROQ_FIRST_FRAME_SIZE;\n context->lastSample[0] = context->lastSample[1] = 0;\n avctx->coded_frame= avcodec_alloc_frame();\n avctx->coded_frame->key_frame= 1;\n return 0;\n}', 'static av_cold void roq_dpcm_table_init(void)\n{\n int i;\n for (i=0; i<MAX_DPCM; i++) {\n int s= ff_sqrt(i);\n int mid= s*s + s;\n dpcmValues[i]= s + (i>mid);\n }\n}', 'static inline av_const unsigned int ff_sqrt(unsigned int a)\n{\n unsigned int b;\n if(a<255) return (ff_sqrt_tab[a+1]-1)>>4;\n else if(a<(1<<12)) b= ff_sqrt_tab[a>>4 ]>>2;\n#ifndef CONFIG_SMALL\n else if(a<(1<<14)) b= ff_sqrt_tab[a>>6 ]>>1;\n else if(a<(1<<16)) b= ff_sqrt_tab[a>>8 ] ;\n#endif\n else{\n int s= av_log2_16bit(a>>16)>>1;\n unsigned int c= a>>(s+2);\n b= ff_sqrt_tab[c>>(s+8)];\n b= FASTDIV(c,b) + (b<<s);\n }\n return b - (a<b*b);\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}'] |
17,436 | 0 | https://github.com/libav/libav/blob/3ec394ea823c2a6e65a6abbdb2041ce1c66964f8/libavcodec/h264pred.c/#L339 | static void pred4x4_horizontal_up_c(uint8_t *src, uint8_t *topright, int stride){
LOAD_LEFT_EDGE
src[0+0*stride]=(l0 + l1 + 1)>>1;
src[1+0*stride]=(l0 + 2*l1 + l2 + 2)>>2;
src[2+0*stride]=
src[0+1*stride]=(l1 + l2 + 1)>>1;
src[3+0*stride]=
src[1+1*stride]=(l1 + 2*l2 + l3 + 2)>>2;
src[2+1*stride]=
src[0+2*stride]=(l2 + l3 + 1)>>1;
src[3+1*stride]=
src[1+2*stride]=(l2 + 2*l3 + l3 + 2)>>2;
src[3+2*stride]=
src[1+3*stride]=
src[0+3*stride]=
src[2+2*stride]=
src[2+3*stride]=
src[3+3*stride]=l3;
} | ['static void pred4x4_horizontal_up_c(uint8_t *src, uint8_t *topright, int stride){\n LOAD_LEFT_EDGE\n src[0+0*stride]=(l0 + l1 + 1)>>1;\n src[1+0*stride]=(l0 + 2*l1 + l2 + 2)>>2;\n src[2+0*stride]=\n src[0+1*stride]=(l1 + l2 + 1)>>1;\n src[3+0*stride]=\n src[1+1*stride]=(l1 + 2*l2 + l3 + 2)>>2;\n src[2+1*stride]=\n src[0+2*stride]=(l2 + l3 + 1)>>1;\n src[3+1*stride]=\n src[1+2*stride]=(l2 + 2*l3 + l3 + 2)>>2;\n src[3+2*stride]=\n src[1+3*stride]=\n src[0+3*stride]=\n src[2+2*stride]=\n src[2+3*stride]=\n src[3+3*stride]=l3;\n}'] |
17,437 | 0 | https://github.com/libav/libav/blob/2f99117f6ff24ce5be2abb9e014cb8b86c2aa0e0/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 read_sl_header(PESContext *pes, SLConfigDescr *sl,\n const uint8_t *buf, int buf_size)\n{\n BitstreamContext bc;\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 bitstream_init(&bc, buf, buf_size * 8);\n if (sl->use_au_start)\n au_start_flag = bitstream_read_bit(&bc);\n if (sl->use_au_end)\n au_end_flag = bitstream_read_bit(&bc);\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 = bitstream_read_bit(&bc);\n if (sl->use_idle)\n idle_flag = bitstream_read_bit(&bc);\n if (sl->use_padding)\n padding_flag = bitstream_read_bit(&bc);\n if (padding_flag)\n padding_bits = bitstream_read(&bc, 3);\n if (!idle_flag && (!padding_flag || padding_bits != 0)) {\n if (sl->packet_seq_num_len)\n bitstream_skip(&bc, sl->packet_seq_num_len);\n if (sl->degr_prior_len)\n if (bitstream_read_bit(&bc))\n bitstream_skip(&bc, sl->degr_prior_len);\n if (ocr_flag)\n bitstream_skip(&bc, sl->ocr_len);\n if (au_start_flag) {\n if (sl->use_rand_acc_pt)\n bitstream_read_bit(&bc);\n if (sl->au_seq_num_len > 0)\n bitstream_skip(&bc, sl->au_seq_num_len);\n if (sl->use_timestamps) {\n dts_flag = bitstream_read_bit(&bc);\n cts_flag = bitstream_read_bit(&bc);\n }\n }\n if (sl->inst_bitrate_len)\n inst_bitrate_flag = bitstream_read_bit(&bc);\n if (dts_flag == 1)\n dts = bitstream_read_63(&bc, sl->timestamp_len);\n if (cts_flag == 1)\n cts = bitstream_read_63(&bc, sl->timestamp_len);\n if (sl->au_len > 0)\n bitstream_skip(&bc, sl->au_len);\n if (inst_bitrate_flag)\n bitstream_skip(&bc, 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 (bitstream_tell(&bc) + 7) >> 3;\n}', 'static inline int bitstream_init(BitstreamContext *bc, const uint8_t *buffer,\n unsigned bit_size)\n{\n unsigned buffer_size;\n if (bit_size > INT_MAX - 7 || !buffer) {\n buffer =\n bc->buffer =\n bc->ptr = NULL;\n bc->bits_left = 0;\n return AVERROR_INVALIDDATA;\n }\n buffer_size = (bit_size + 7) >> 3;\n bc->buffer = buffer;\n bc->buffer_end = buffer + buffer_size;\n bc->ptr = bc->buffer;\n bc->size_in_bits = bit_size;\n bc->bits_left = 0;\n bc->bits = 0;\n refill_64(bc);\n return 0;\n}', 'static inline unsigned bitstream_read_bit(BitstreamContext *bc)\n{\n if (!bc->bits_left)\n refill_64(bc);\n return get_val(bc, 1);\n}', 'static inline uint64_t get_val(BitstreamContext *bc, unsigned n)\n{\n#ifdef BITSTREAM_READER_LE\n uint64_t ret = bc->bits & ((UINT64_C(1) << n) - 1);\n bc->bits >>= n;\n#else\n uint64_t ret = bc->bits >> (64 - n);\n bc->bits <<= n;\n#endif\n bc->bits_left -= n;\n return ret;\n}'] |
17,438 | 0 | https://github.com/libav/libav/blob/548a99742c2498575d0dbcd1aa030b9d51d28b18/libavformat/movenc.c/#L830 | static int mov_write_ctts_tag(ByteIOContext *pb, MOVTrack *track)
{
MOVStts *ctts_entries;
uint32_t entries = 0;
uint32_t atom_size;
int i;
ctts_entries = av_malloc((track->entry + 1) * sizeof(*ctts_entries));
ctts_entries[0].count = 1;
ctts_entries[0].duration = track->cluster[0].cts;
for (i=1; i<track->entry; i++) {
if (track->cluster[i].cts == ctts_entries[entries].duration) {
ctts_entries[entries].count++;
} else {
entries++;
ctts_entries[entries].duration = track->cluster[i].cts;
ctts_entries[entries].count = 1;
}
}
entries++;
atom_size = 16 + (entries * 8);
put_be32(pb, atom_size);
put_tag(pb, "ctts");
put_be32(pb, 0);
put_be32(pb, entries);
for (i=0; i<entries; i++) {
put_be32(pb, ctts_entries[i].count);
put_be32(pb, ctts_entries[i].duration);
}
av_free(ctts_entries);
return atom_size;
} | ['static int mov_write_ctts_tag(ByteIOContext *pb, MOVTrack *track)\n{\n MOVStts *ctts_entries;\n uint32_t entries = 0;\n uint32_t atom_size;\n int i;\n ctts_entries = av_malloc((track->entry + 1) * sizeof(*ctts_entries));\n ctts_entries[0].count = 1;\n ctts_entries[0].duration = track->cluster[0].cts;\n for (i=1; i<track->entry; i++) {\n if (track->cluster[i].cts == ctts_entries[entries].duration) {\n ctts_entries[entries].count++;\n } else {\n entries++;\n ctts_entries[entries].duration = track->cluster[i].cts;\n ctts_entries[entries].count = 1;\n }\n }\n entries++;\n atom_size = 16 + (entries * 8);\n put_be32(pb, atom_size);\n put_tag(pb, "ctts");\n put_be32(pb, 0);\n put_be32(pb, entries);\n for (i=0; i<entries; i++) {\n put_be32(pb, ctts_entries[i].count);\n put_be32(pb, ctts_entries[i].duration);\n }\n av_free(ctts_entries);\n return atom_size;\n}', 'void *av_malloc(unsigned int size)\n{\n void *ptr = NULL;\n#if CONFIG_MEMALIGN_HACK\n long diff;\n#endif\n if(size > (INT_MAX-16) )\n return NULL;\n#if CONFIG_MEMALIGN_HACK\n ptr = malloc(size+16);\n if(!ptr)\n return ptr;\n diff= ((-(long)ptr - 1)&15) + 1;\n ptr = (char*)ptr + diff;\n ((char*)ptr)[-1]= diff;\n#elif HAVE_POSIX_MEMALIGN\n 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}'] |
17,439 | 0 | https://github.com/openssl/openssl/blob/9c46f4b9cd4912b61cb546c48b678488d7f26ed6/crypto/lhash/lhash.c/#L273 | static void doall_util_fn(_LHASH *lh, int use_arg, LHASH_DOALL_FN_TYPE func,
LHASH_DOALL_ARG_FN_TYPE func_arg, void *arg)
{
int i;
LHASH_NODE *a, *n;
if (lh == NULL)
return;
for (i = lh->num_nodes - 1; i >= 0; i--) {
a = lh->b[i];
while (a != NULL) {
n = a->next;
if (use_arg)
func_arg(a->data, arg);
else
func(a->data);
a = n;
}
}
} | ['static void engine_unregister_all_ECDH(void)\n{\n engine_table_cleanup(&ecdh_table);\n}', 'void engine_table_cleanup(ENGINE_TABLE **table)\n{\n CRYPTO_w_lock(CRYPTO_LOCK_ENGINE);\n if (*table) {\n lh_ENGINE_PILE_doall(&(*table)->piles,\n LHASH_DOALL_FN(int_cleanup_cb));\n lh_ENGINE_PILE_free(&(*table)->piles);\n *table = NULL;\n }\n CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE);\n}', 'void lh_doall(_LHASH *lh, LHASH_DOALL_FN_TYPE func)\n{\n doall_util_fn(lh, 0, func, (LHASH_DOALL_ARG_FN_TYPE)0, NULL);\n}', 'static void doall_util_fn(_LHASH *lh, int use_arg, LHASH_DOALL_FN_TYPE func,\n LHASH_DOALL_ARG_FN_TYPE func_arg, void *arg)\n{\n int i;\n LHASH_NODE *a, *n;\n if (lh == NULL)\n return;\n for (i = lh->num_nodes - 1; i >= 0; i--) {\n a = lh->b[i];\n while (a != NULL) {\n n = a->next;\n if (use_arg)\n func_arg(a->data, arg);\n else\n func(a->data);\n a = n;\n }\n }\n}'] |
17,440 | 0 | https://github.com/openssl/openssl/blob/d40a1b865fddc3d67f8c06ff1f1466fad331c8f7/crypto/bn/bn_lib.c/#L250 | int BN_num_bits(const BIGNUM *a)
{
int i = a->top - 1;
bn_check_top(a);
if (BN_is_zero(a)) return 0;
return ((i*BN_BITS2) + BN_num_bits_word(a->d[i]));
} | ['static int i2b_PVK(unsigned char **out, EVP_PKEY*pk, int enclevel,\n\t\tpem_password_cb *cb, void *u)\n\t{\n\tint outlen = 24, noinc, pklen;\n\tunsigned char *p, *salt = NULL;\n\tif (enclevel)\n\t\toutlen += PVK_SALTLEN;\n\tpklen = do_i2b(NULL, pk, 0);\n\tif (pklen < 0)\n\t\treturn -1;\n\toutlen += pklen;\n\tif (!out)\n\t\treturn outlen;\n\tif (*out)\n\t\t{\n\t\tp = *out;\n\t\tnoinc = 0;\n\t\t}\n\telse\n\t\t{\n\t\tp = OPENSSL_malloc(outlen);\n\t\tif (!p)\n\t\t\t{\n\t\t\tPEMerr(PEM_F_I2B_PVK,ERR_R_MALLOC_FAILURE);\n\t\t\treturn -1;\n\t\t\t}\n\t\t*out = p;\n\t\tnoinc = 1;\n\t\t}\n\twrite_ledword(&p, MS_PVKMAGIC);\n\twrite_ledword(&p, 0);\n\tif (pk->type == EVP_PKEY_DSA)\n\t\twrite_ledword(&p, MS_KEYTYPE_SIGN);\n\telse\n\t\twrite_ledword(&p, MS_KEYTYPE_KEYX);\n\twrite_ledword(&p, enclevel ? 1 : 0);\n\twrite_ledword(&p, enclevel ? PVK_SALTLEN: 0);\n\twrite_ledword(&p, pklen);\n\tif (enclevel)\n\t\t{\n\t\tif (RAND_bytes(p, PVK_SALTLEN) <= 0)\n\t\t\tgoto error;\n\t\tsalt = p;\n\t\tp += PVK_SALTLEN;\n\t\t}\n\tdo_i2b(&p, pk, 0);\n\tif (enclevel == 0)\n\t\treturn outlen;\n\telse\n\t\t{\n\t\tchar psbuf[PEM_BUFSIZE];\n\t\tunsigned char keybuf[20];\n\t\tEVP_CIPHER_CTX cctx;\n\t\tint enctmplen, inlen;\n\t\tif (cb)\n\t\t\tinlen=cb(psbuf,PEM_BUFSIZE,1,u);\n\t\telse\n\t\t\tinlen=PEM_def_callback(psbuf,PEM_BUFSIZE,1,u);\n\t\tif (inlen <= 0)\n\t\t\t{\n\t\t\tPEMerr(PEM_F_I2B_PVK,PEM_R_BAD_PASSWORD_READ);\n\t\t\tgoto error;\n\t\t\t}\n\t\tif (!derive_pvk_key(keybuf, salt, PVK_SALTLEN,\n\t\t\t (unsigned char *)psbuf, inlen))\n\t\t\tgoto error;\n\t\tif (enclevel == 1)\n\t\t\tmemset(keybuf + 5, 0, 11);\n\t\tp = salt + PVK_SALTLEN + 8;\n\t\tEVP_CIPHER_CTX_init(&cctx);\n\t\tEVP_EncryptInit_ex(&cctx, EVP_rc4(), NULL, keybuf, NULL);\n\t\tOPENSSL_cleanse(keybuf, 20);\n\t\tEVP_DecryptUpdate(&cctx, p, &enctmplen, p, pklen - 8);\n\t\tEVP_DecryptFinal_ex(&cctx, p + enctmplen, &enctmplen);\n\t\tEVP_CIPHER_CTX_cleanup(&cctx);\n\t\t}\n\treturn outlen;\n\terror:\n\treturn -1;\n\t}', 'static int do_i2b(unsigned char **out, EVP_PKEY *pk, int ispub)\n\t{\n\tunsigned char *p;\n\tunsigned int bitlen, magic = 0, keyalg;\n\tint outlen, noinc = 0;\n\tif (pk->type == EVP_PKEY_DSA)\n\t\t{\n\t\tbitlen = check_bitlen_dsa(pk->pkey.dsa, ispub, &magic);\n\t\tkeyalg = MS_KEYALG_DSS_SIGN;\n\t\t}\n\telse if (pk->type == EVP_PKEY_RSA)\n\t\t{\n\t\tbitlen = check_bitlen_rsa(pk->pkey.rsa, ispub, &magic);\n\t\tkeyalg = MS_KEYALG_RSA_KEYX;\n\t\t}\n\telse\n\t\treturn -1;\n\tif (bitlen == 0)\n\t\treturn -1;\n\toutlen = 16 + blob_length(bitlen,\n\t\t\tkeyalg == MS_KEYALG_DSS_SIGN ? 1 : 0, ispub);\n\tif (out == NULL)\n\t\treturn outlen;\n\tif (*out)\n\t\tp = *out;\n\telse\n\t\t{\n\t\tp = OPENSSL_malloc(outlen);\n\t\tif (!p)\n\t\t\treturn -1;\n\t\t*out = p;\n\t\tnoinc = 1;\n\t\t}\n\tif (ispub)\n\t\t*p++ = MS_PUBLICKEYBLOB;\n\telse\n\t\t*p++ = MS_PRIVATEKEYBLOB;\n\t*p++ = 0x2;\n\t*p++ = 0;\n\t*p++ = 0;\n\twrite_ledword(&p, keyalg);\n\twrite_ledword(&p, magic);\n\twrite_ledword(&p, bitlen);\n\tif (keyalg == MS_KEYALG_DSS_SIGN)\n\t\twrite_dsa(&p, pk->pkey.dsa, ispub);\n\telse\n\t\twrite_rsa(&p, pk->pkey.rsa, ispub);\n\tif (!noinc)\n\t\t*out += outlen;\n\treturn outlen;\n\t}', 'static int check_bitlen_dsa(DSA *dsa, int ispub, unsigned int *pmagic)\n\t{\n\tint bitlen;\n\tbitlen = BN_num_bits(dsa->p);\n\tif ((bitlen & 7) || (BN_num_bits(dsa->q) != 160)\n\t\t|| (BN_num_bits(dsa->g) > bitlen))\n\t\tgoto badkey;\n\tif (ispub)\n\t\t{\n\t\tif (BN_num_bits(dsa->pub_key) > bitlen)\n\t\t\tgoto badkey;\n\t\t*pmagic = MS_DSS1MAGIC;\n\t\t}\n\telse\n\t\t{\n\t\tif (BN_num_bits(dsa->priv_key) > 160)\n\t\t\tgoto badkey;\n\t\t*pmagic = MS_DSS2MAGIC;\n\t\t}\n\treturn bitlen;\n\tbadkey:\n\tPEMerr(PEM_F_CHECK_BITLEN_DSA, PEM_R_UNSUPPORTED_KEY_COMPONENTS);\n\treturn 0;\n\t}', 'int BN_num_bits(const BIGNUM *a)\n\t{\n\tint i = a->top - 1;\n\tbn_check_top(a);\n\tif (BN_is_zero(a)) return 0;\n\treturn ((i*BN_BITS2) + BN_num_bits_word(a->d[i]));\n\t}'] |
17,441 | 0 | https://github.com/openssl/openssl/blob/5d1c09de1f2736e1d4b1877206d08455ec75f558/crypto/bn/bn_ctx.c/#L276 | static unsigned int BN_STACK_pop(BN_STACK *st)
{
return st->indexes[--(st->depth)];
} | ['static int compute_key(unsigned char *key, const BIGNUM *pub_key, DH *dh)\n{\n BN_CTX *ctx = NULL;\n BN_MONT_CTX *mont = NULL;\n BIGNUM *tmp;\n int ret = -1;\n int check_result;\n if (BN_num_bits(dh->p) > OPENSSL_DH_MAX_MODULUS_BITS) {\n DHerr(DH_F_COMPUTE_KEY, DH_R_MODULUS_TOO_LARGE);\n goto err;\n }\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)\n goto err;\n if (dh->priv_key == NULL) {\n DHerr(DH_F_COMPUTE_KEY, DH_R_NO_PRIVATE_VALUE);\n goto err;\n }\n if (dh->flags & DH_FLAG_CACHE_MONT_P) {\n mont = BN_MONT_CTX_set_locked(&dh->method_mont_p,\n dh->lock, dh->p, ctx);\n BN_set_flags(dh->priv_key, BN_FLG_CONSTTIME);\n if (!mont)\n goto err;\n }\n if (!DH_check_pub_key(dh, pub_key, &check_result) || check_result) {\n DHerr(DH_F_COMPUTE_KEY, DH_R_INVALID_PUBKEY);\n goto err;\n }\n if (!dh->\n meth->bn_mod_exp(dh, tmp, pub_key, dh->priv_key, dh->p, ctx, mont)) {\n DHerr(DH_F_COMPUTE_KEY, ERR_R_BN_LIB);\n goto err;\n }\n ret = BN_bn2bin(tmp, key);\n err:\n if (ctx != NULL) {\n BN_CTX_end(ctx);\n BN_CTX_free(ctx);\n }\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}', '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_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 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}', '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}'] |
17,442 | 0 | https://github.com/openssl/openssl/blob/8da94770f0a049497b1a52ee469cca1f4a13b1a7/crypto/mem.c/#L245 | void CRYPTO_free(void *str)
{
#ifdef CRYPTO_MDEBUG
if (call_malloc_debug) {
CRYPTO_mem_debug_free(str, 0);
free(str);
CRYPTO_mem_debug_free(str, 1);
} else {
free(str);
}
#else
free(str);
#endif
} | ['int HMAC_CTX_copy(HMAC_CTX *dctx, HMAC_CTX *sctx)\n{\n if (!HMAC_CTX_reset(dctx))\n goto err;\n if (!EVP_MD_CTX_copy_ex(dctx->i_ctx, sctx->i_ctx))\n goto err;\n if (!EVP_MD_CTX_copy_ex(dctx->o_ctx, sctx->o_ctx))\n goto err;\n if (!EVP_MD_CTX_copy_ex(dctx->md_ctx, sctx->md_ctx))\n goto err;\n memcpy(dctx->key, sctx->key, HMAC_MAX_MD_CBLOCK);\n dctx->key_length = sctx->key_length;\n dctx->md = sctx->md;\n return 1;\n err:\n hmac_ctx_cleanup(dctx);\n return 0;\n}', 'int HMAC_CTX_reset(HMAC_CTX *ctx)\n{\n hmac_ctx_cleanup(ctx);\n if (ctx->i_ctx == NULL)\n ctx->i_ctx = EVP_MD_CTX_new();\n if (ctx->i_ctx == NULL)\n goto err;\n if (ctx->o_ctx == NULL)\n ctx->o_ctx = EVP_MD_CTX_new();\n if (ctx->o_ctx == NULL)\n goto err;\n if (ctx->md_ctx == NULL)\n ctx->md_ctx = EVP_MD_CTX_new();\n if (ctx->md_ctx == NULL)\n goto err;\n ctx->md = NULL;\n return 1;\n err:\n hmac_ctx_cleanup(ctx);\n return 0;\n}', 'static void hmac_ctx_cleanup(HMAC_CTX *ctx)\n{\n EVP_MD_CTX_reset(ctx->i_ctx);\n EVP_MD_CTX_reset(ctx->o_ctx);\n EVP_MD_CTX_reset(ctx->md_ctx);\n ctx->md = NULL;\n ctx->key_length = 0;\n memset(ctx->key, 0, sizeof(HMAC_MAX_MD_CBLOCK));\n}', 'int EVP_MD_CTX_reset(EVP_MD_CTX *ctx)\n{\n if (ctx == NULL)\n return 1;\n if (ctx->digest && ctx->digest->cleanup\n && !EVP_MD_CTX_test_flags(ctx, EVP_MD_CTX_FLAG_CLEANED))\n ctx->digest->cleanup(ctx);\n if (ctx->digest && ctx->digest->ctx_size && ctx->md_data\n && !EVP_MD_CTX_test_flags(ctx, EVP_MD_CTX_FLAG_REUSE)) {\n OPENSSL_clear_free(ctx->md_data, ctx->digest->ctx_size);\n }\n EVP_PKEY_CTX_free(ctx->pctx);\n#ifndef OPENSSL_NO_ENGINE\n if (ctx->engine)\n ENGINE_finish(ctx->engine);\n#endif\n memset(ctx, 0, sizeof(*ctx));\n return 1;\n}', 'void CRYPTO_clear_free(void *str, size_t num)\n{\n if (str == NULL)\n return;\n if (num)\n OPENSSL_cleanse(str, num);\n CRYPTO_free(str);\n}', 'void CRYPTO_free(void *str)\n{\n#ifdef CRYPTO_MDEBUG\n if (call_malloc_debug) {\n CRYPTO_mem_debug_free(str, 0);\n free(str);\n CRYPTO_mem_debug_free(str, 1);\n } else {\n free(str);\n }\n#else\n free(str);\n#endif\n}'] |
17,443 | 0 | https://github.com/libav/libav/blob/f0319383436e1abc3fc1464fe4e5f4dc40db3419/ffmpeg.c/#L3698 | 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}'] |
17,444 | 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 DH_check(const DH *dh, int *ret)\n{\n int ok = 0;\n BN_CTX *ctx = NULL;\n BN_ULONG l;\n BIGNUM *t1 = NULL, *t2 = NULL;\n *ret = 0;\n ctx = BN_CTX_new();\n if (ctx == NULL)\n goto err;\n BN_CTX_start(ctx);\n t1 = BN_CTX_get(ctx);\n if (t1 == NULL)\n goto err;\n t2 = BN_CTX_get(ctx);\n if (t2 == NULL)\n goto err;\n if (dh->q) {\n if (BN_cmp(dh->g, BN_value_one()) <= 0)\n *ret |= DH_NOT_SUITABLE_GENERATOR;\n else if (BN_cmp(dh->g, dh->p) >= 0)\n *ret |= DH_NOT_SUITABLE_GENERATOR;\n else {\n if (!BN_mod_exp(t1, dh->g, dh->q, dh->p, ctx))\n goto err;\n if (!BN_is_one(t1))\n *ret |= DH_NOT_SUITABLE_GENERATOR;\n }\n if (!BN_is_prime_ex(dh->q, BN_prime_checks, ctx, NULL))\n *ret |= DH_CHECK_Q_NOT_PRIME;\n if (!BN_div(t1, t2, dh->p, dh->q, ctx))\n goto err;\n if (!BN_is_one(t2))\n *ret |= DH_CHECK_INVALID_Q_VALUE;\n if (dh->j && BN_cmp(dh->j, t1))\n *ret |= DH_CHECK_INVALID_J_VALUE;\n } else if (BN_is_word(dh->g, DH_GENERATOR_2)) {\n l = BN_mod_word(dh->p, 24);\n if (l != 11)\n *ret |= DH_NOT_SUITABLE_GENERATOR;\n } else if (BN_is_word(dh->g, DH_GENERATOR_5)) {\n l = BN_mod_word(dh->p, 10);\n if ((l != 3) && (l != 7))\n *ret |= DH_NOT_SUITABLE_GENERATOR;\n } else\n *ret |= DH_UNABLE_TO_CHECK_GENERATOR;\n if (!BN_is_prime_ex(dh->p, BN_prime_checks, ctx, NULL))\n *ret |= DH_CHECK_P_NOT_PRIME;\n else if (!dh->q) {\n if (!BN_rshift1(t1, dh->p))\n goto err;\n if (!BN_is_prime_ex(t1, BN_prime_checks, ctx, NULL))\n *ret |= DH_CHECK_P_NOT_SAFE_PRIME;\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}', 'int BN_mod_exp(BIGNUM *r, const BIGNUM *a, const BIGNUM *p, const BIGNUM *m,\n BN_CTX *ctx)\n{\n int ret;\n bn_check_top(a);\n bn_check_top(p);\n bn_check_top(m);\n#define MONT_MUL_MOD\n#define MONT_EXP_WORD\n#define RECP_MUL_MOD\n#ifdef MONT_MUL_MOD\n if (BN_is_odd(m)) {\n# ifdef MONT_EXP_WORD\n if (a->top == 1 && !a->neg\n && (BN_get_flags(p, BN_FLG_CONSTTIME) == 0)) {\n BN_ULONG A = a->d[0];\n ret = BN_mod_exp_mont_word(r, A, p, m, ctx, NULL);\n } else\n# endif\n ret = BN_mod_exp_mont(r, a, p, m, ctx, NULL);\n } else\n#endif\n#ifdef RECP_MUL_MOD\n {\n ret = BN_mod_exp_recp(r, a, p, m, ctx);\n }\n#else\n {\n ret = BN_mod_exp_simple(r, a, p, m, ctx);\n }\n#endif\n bn_check_top(r);\n return (ret);\n}', 'int BN_mod_exp_mont_word(BIGNUM *rr, BN_ULONG a, const BIGNUM *p,\n const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *in_mont)\n{\n BN_MONT_CTX *mont = NULL;\n int b, bits, ret = 0;\n int r_is_one;\n BN_ULONG w, next_w;\n BIGNUM *d, *r, *t;\n BIGNUM *swap_tmp;\n#define BN_MOD_MUL_WORD(r, w, m) \\\n (BN_mul_word(r, (w)) && \\\n ( \\\n (BN_mod(t, r, m, ctx) && (swap_tmp = r, r = t, t = swap_tmp, 1))))\n#define BN_TO_MONTGOMERY_WORD(r, w, mont) \\\n (BN_set_word(r, (w)) && BN_to_montgomery(r, r, (mont), ctx))\n if (BN_get_flags(p, BN_FLG_CONSTTIME) != 0) {\n BNerr(BN_F_BN_MOD_EXP_MONT_WORD, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);\n return -1;\n }\n bn_check_top(p);\n bn_check_top(m);\n if (!BN_is_odd(m)) {\n BNerr(BN_F_BN_MOD_EXP_MONT_WORD, BN_R_CALLED_WITH_EVEN_MODULUS);\n return (0);\n }\n if (m->top == 1)\n a %= m->d[0];\n bits = BN_num_bits(p);\n if (bits == 0) {\n if (BN_is_one(m)) {\n ret = 1;\n BN_zero(rr);\n } else {\n ret = BN_one(rr);\n }\n return ret;\n }\n if (a == 0) {\n BN_zero(rr);\n ret = 1;\n return ret;\n }\n BN_CTX_start(ctx);\n d = BN_CTX_get(ctx);\n r = BN_CTX_get(ctx);\n t = BN_CTX_get(ctx);\n if (d == NULL || r == NULL || t == NULL)\n goto err;\n if (in_mont != NULL)\n mont = in_mont;\n else {\n if ((mont = BN_MONT_CTX_new()) == NULL)\n goto err;\n if (!BN_MONT_CTX_set(mont, m, ctx))\n goto err;\n }\n r_is_one = 1;\n w = a;\n for (b = bits - 2; b >= 0; b--) {\n next_w = w * w;\n if ((next_w / w) != w) {\n if (r_is_one) {\n if (!BN_TO_MONTGOMERY_WORD(r, w, mont))\n goto err;\n r_is_one = 0;\n } else {\n if (!BN_MOD_MUL_WORD(r, w, m))\n goto err;\n }\n next_w = 1;\n }\n w = next_w;\n if (!r_is_one) {\n if (!BN_mod_mul_montgomery(r, r, r, mont, ctx))\n goto err;\n }\n if (BN_is_bit_set(p, b)) {\n next_w = w * a;\n if ((next_w / a) != w) {\n if (r_is_one) {\n if (!BN_TO_MONTGOMERY_WORD(r, w, mont))\n goto err;\n r_is_one = 0;\n } else {\n if (!BN_MOD_MUL_WORD(r, w, m))\n goto err;\n }\n next_w = a;\n }\n w = next_w;\n }\n }\n if (w != 1) {\n if (r_is_one) {\n if (!BN_TO_MONTGOMERY_WORD(r, w, mont))\n goto err;\n r_is_one = 0;\n } else {\n if (!BN_MOD_MUL_WORD(r, w, m))\n goto err;\n }\n }\n if (r_is_one) {\n if (!BN_one(rr))\n goto err;\n } else {\n if (!BN_from_montgomery(rr, r, mont, ctx))\n goto err;\n }\n ret = 1;\n err:\n if (in_mont == NULL)\n BN_MONT_CTX_free(mont);\n BN_CTX_end(ctx);\n bn_check_top(rr);\n return (ret);\n}', '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}'] |
17,445 | 0 | https://github.com/libav/libav/blob/63380b5e54f64abdde4a8b6bce0d60f1fa4a22a1/libavcodec/vorbis_dec.c/#L1537 | static int vorbis_parse_audio_packet(vorbis_context *vc)
{
GetBitContext *gb = &vc->gb;
uint_fast8_t previous_window = vc->previous_window;
uint_fast8_t mode_number;
uint_fast8_t blockflag;
uint_fast16_t blocksize;
int_fast32_t i,j;
uint_fast8_t no_residue[vc->audio_channels];
uint_fast8_t do_not_decode[vc->audio_channels];
vorbis_mapping *mapping;
float *ch_res_ptr = vc->channel_residues;
float *ch_floor_ptr = vc->channel_floors;
uint_fast8_t res_chan[vc->audio_channels];
uint_fast8_t res_num = 0;
int_fast16_t retlen = 0;
float fadd_bias = vc->add_bias;
if (get_bits1(gb)) {
av_log(vc->avccontext, AV_LOG_ERROR, "Not a Vorbis I audio packet.\n");
return -1;
}
if (vc->mode_count == 1) {
mode_number = 0;
} else {
mode_number = get_bits(gb, ilog(vc->mode_count-1));
}
if (mode_number >= vc->mode_count) {
av_log(vc->avccontext, AV_LOG_ERROR, "mode number %d out of range.\n", mode_number);
return -1;
}
vc->mode_number = mode_number;
mapping = &vc->mappings[vc->modes[mode_number].mapping];
AV_DEBUG(" Mode number: %d , mapping: %d , blocktype %d \n", mode_number, vc->modes[mode_number].mapping, vc->modes[mode_number].blockflag);
blockflag = vc->modes[mode_number].blockflag;
blocksize = vc->blocksize[blockflag];
if (blockflag)
skip_bits(gb, 2);
memset(ch_res_ptr, 0, sizeof(float) * vc->audio_channels * blocksize / 2);
memset(ch_floor_ptr, 0, sizeof(float) * vc->audio_channels * blocksize / 2);
for (i = 0; i < vc->audio_channels; ++i) {
vorbis_floor *floor;
if (mapping->submaps > 1) {
floor = &vc->floors[mapping->submap_floor[mapping->mux[i]]];
} else {
floor = &vc->floors[mapping->submap_floor[0]];
}
no_residue[i] = floor->decode(vc, &floor->data, ch_floor_ptr);
ch_floor_ptr += blocksize / 2;
}
for (i = mapping->coupling_steps - 1; i >= 0; --i) {
if (!(no_residue[mapping->magnitude[i]] & no_residue[mapping->angle[i]])) {
no_residue[mapping->magnitude[i]] = 0;
no_residue[mapping->angle[i]] = 0;
}
}
for (i = 0; i < mapping->submaps; ++i) {
vorbis_residue *residue;
uint_fast8_t ch = 0;
for (j = 0; j < vc->audio_channels; ++j) {
if ((mapping->submaps == 1) || (i == mapping->mux[j])) {
res_chan[j] = res_num;
if (no_residue[j]) {
do_not_decode[ch] = 1;
} else {
do_not_decode[ch] = 0;
}
++ch;
++res_num;
}
}
residue = &vc->residues[mapping->submap_residue[i]];
vorbis_residue_decode(vc, residue, ch, do_not_decode, ch_res_ptr, blocksize/2);
ch_res_ptr += ch * blocksize / 2;
}
for (i = mapping->coupling_steps - 1; i >= 0; --i) {
float *mag, *ang;
mag = vc->channel_residues+res_chan[mapping->magnitude[i]] * blocksize / 2;
ang = vc->channel_residues+res_chan[mapping->angle[i]] * blocksize / 2;
vc->dsp.vorbis_inverse_coupling(mag, ang, blocksize / 2);
}
for (j = vc->audio_channels-1;j >= 0; j--) {
ch_floor_ptr = vc->channel_floors + j * blocksize / 2;
ch_res_ptr = vc->channel_residues + res_chan[j] * blocksize / 2;
vc->dsp.vector_fmul(ch_floor_ptr, ch_res_ptr, blocksize / 2);
ff_imdct_half(&vc->mdct[blockflag], ch_res_ptr, ch_floor_ptr);
}
retlen = (blocksize + vc->blocksize[previous_window]) / 4;
for (j = 0; j < vc->audio_channels; j++) {
uint_fast16_t bs0 = vc->blocksize[0];
uint_fast16_t bs1 = vc->blocksize[1];
float *residue = vc->channel_residues + res_chan[j] * blocksize / 2;
float *saved = vc->saved + j * bs1 / 4;
float *ret = vc->channel_floors + j * retlen;
float *buf = residue;
const float *win = vc->win[blockflag & previous_window];
if (blockflag == previous_window) {
vc->dsp.vector_fmul_window(ret, saved, buf, win, fadd_bias, blocksize / 4);
} else if (blockflag > previous_window) {
vc->dsp.vector_fmul_window(ret, saved, buf, win, fadd_bias, bs0 / 4);
copy_normalize(ret+bs0/2, buf+bs0/4, (bs1-bs0)/4, vc->exp_bias, fadd_bias);
} else {
copy_normalize(ret, saved, (bs1 - bs0) / 4, vc->exp_bias, fadd_bias);
vc->dsp.vector_fmul_window(ret + (bs1 - bs0) / 4, saved + (bs1 - bs0) / 4, buf, win, fadd_bias, bs0 / 4);
}
memcpy(saved, buf + blocksize / 4, blocksize / 4 * sizeof(float));
}
vc->previous_window = blockflag;
return retlen;
} | ['static int vorbis_parse_audio_packet(vorbis_context *vc)\n{\n GetBitContext *gb = &vc->gb;\n uint_fast8_t previous_window = vc->previous_window;\n uint_fast8_t mode_number;\n uint_fast8_t blockflag;\n uint_fast16_t blocksize;\n int_fast32_t i,j;\n uint_fast8_t no_residue[vc->audio_channels];\n uint_fast8_t do_not_decode[vc->audio_channels];\n vorbis_mapping *mapping;\n float *ch_res_ptr = vc->channel_residues;\n float *ch_floor_ptr = vc->channel_floors;\n uint_fast8_t res_chan[vc->audio_channels];\n uint_fast8_t res_num = 0;\n int_fast16_t retlen = 0;\n float fadd_bias = vc->add_bias;\n if (get_bits1(gb)) {\n av_log(vc->avccontext, AV_LOG_ERROR, "Not a Vorbis I audio packet.\\n");\n return -1;\n }\n if (vc->mode_count == 1) {\n mode_number = 0;\n } else {\n mode_number = get_bits(gb, ilog(vc->mode_count-1));\n }\n if (mode_number >= vc->mode_count) {\n av_log(vc->avccontext, AV_LOG_ERROR, "mode number %d out of range.\\n", mode_number);\n return -1;\n }\n vc->mode_number = mode_number;\n mapping = &vc->mappings[vc->modes[mode_number].mapping];\n AV_DEBUG(" Mode number: %d , mapping: %d , blocktype %d \\n", mode_number, vc->modes[mode_number].mapping, vc->modes[mode_number].blockflag);\n blockflag = vc->modes[mode_number].blockflag;\n blocksize = vc->blocksize[blockflag];\n if (blockflag)\n skip_bits(gb, 2);\n memset(ch_res_ptr, 0, sizeof(float) * vc->audio_channels * blocksize / 2);\n memset(ch_floor_ptr, 0, sizeof(float) * vc->audio_channels * blocksize / 2);\n for (i = 0; i < vc->audio_channels; ++i) {\n vorbis_floor *floor;\n if (mapping->submaps > 1) {\n floor = &vc->floors[mapping->submap_floor[mapping->mux[i]]];\n } else {\n floor = &vc->floors[mapping->submap_floor[0]];\n }\n no_residue[i] = floor->decode(vc, &floor->data, ch_floor_ptr);\n ch_floor_ptr += blocksize / 2;\n }\n for (i = mapping->coupling_steps - 1; i >= 0; --i) {\n if (!(no_residue[mapping->magnitude[i]] & no_residue[mapping->angle[i]])) {\n no_residue[mapping->magnitude[i]] = 0;\n no_residue[mapping->angle[i]] = 0;\n }\n }\n for (i = 0; i < mapping->submaps; ++i) {\n vorbis_residue *residue;\n uint_fast8_t ch = 0;\n for (j = 0; j < vc->audio_channels; ++j) {\n if ((mapping->submaps == 1) || (i == mapping->mux[j])) {\n res_chan[j] = res_num;\n if (no_residue[j]) {\n do_not_decode[ch] = 1;\n } else {\n do_not_decode[ch] = 0;\n }\n ++ch;\n ++res_num;\n }\n }\n residue = &vc->residues[mapping->submap_residue[i]];\n vorbis_residue_decode(vc, residue, ch, do_not_decode, ch_res_ptr, blocksize/2);\n ch_res_ptr += ch * blocksize / 2;\n }\n for (i = mapping->coupling_steps - 1; i >= 0; --i) {\n float *mag, *ang;\n mag = vc->channel_residues+res_chan[mapping->magnitude[i]] * blocksize / 2;\n ang = vc->channel_residues+res_chan[mapping->angle[i]] * blocksize / 2;\n vc->dsp.vorbis_inverse_coupling(mag, ang, blocksize / 2);\n }\n for (j = vc->audio_channels-1;j >= 0; j--) {\n ch_floor_ptr = vc->channel_floors + j * blocksize / 2;\n ch_res_ptr = vc->channel_residues + res_chan[j] * blocksize / 2;\n vc->dsp.vector_fmul(ch_floor_ptr, ch_res_ptr, blocksize / 2);\n ff_imdct_half(&vc->mdct[blockflag], ch_res_ptr, ch_floor_ptr);\n }\n retlen = (blocksize + vc->blocksize[previous_window]) / 4;\n for (j = 0; j < vc->audio_channels; j++) {\n uint_fast16_t bs0 = vc->blocksize[0];\n uint_fast16_t bs1 = vc->blocksize[1];\n float *residue = vc->channel_residues + res_chan[j] * blocksize / 2;\n float *saved = vc->saved + j * bs1 / 4;\n float *ret = vc->channel_floors + j * retlen;\n float *buf = residue;\n const float *win = vc->win[blockflag & previous_window];\n if (blockflag == previous_window) {\n vc->dsp.vector_fmul_window(ret, saved, buf, win, fadd_bias, blocksize / 4);\n } else if (blockflag > previous_window) {\n vc->dsp.vector_fmul_window(ret, saved, buf, win, fadd_bias, bs0 / 4);\n copy_normalize(ret+bs0/2, buf+bs0/4, (bs1-bs0)/4, vc->exp_bias, fadd_bias);\n } else {\n copy_normalize(ret, saved, (bs1 - bs0) / 4, vc->exp_bias, fadd_bias);\n vc->dsp.vector_fmul_window(ret + (bs1 - bs0) / 4, saved + (bs1 - bs0) / 4, buf, win, fadd_bias, bs0 / 4);\n }\n memcpy(saved, buf + blocksize / 4, blocksize / 4 * sizeof(float));\n }\n vc->previous_window = blockflag;\n return retlen;\n}'] |
17,446 | 0 | https://github.com/openssl/openssl/blob/8b0d4242404f9e5da26e7594fa0864b2df4601af/crypto/bn/bn_lib.c/#L271 | static BN_ULONG *bn_expand_internal(const BIGNUM *b, int words)
{
BN_ULONG *a = NULL;
bn_check_top(b);
if (words > (INT_MAX / (4 * BN_BITS2))) {
BNerr(BN_F_BN_EXPAND_INTERNAL, BN_R_BIGNUM_TOO_LONG);
return NULL;
}
if (BN_get_flags(b, BN_FLG_STATIC_DATA)) {
BNerr(BN_F_BN_EXPAND_INTERNAL, BN_R_EXPAND_ON_STATIC_BIGNUM_DATA);
return (NULL);
}
if (BN_get_flags(b, BN_FLG_SECURE))
a = OPENSSL_secure_zalloc(words * sizeof(*a));
else
a = OPENSSL_zalloc(words * sizeof(*a));
if (a == NULL) {
BNerr(BN_F_BN_EXPAND_INTERNAL, ERR_R_MALLOC_FAILURE);
return (NULL);
}
assert(b->top <= words);
if (b->top > 0)
memcpy(a, b->d, sizeof(*a) * b->top);
return a;
} | ['static int ec_GF2m_montgomery_point_multiply(const EC_GROUP *group,\n EC_POINT *r,\n const BIGNUM *scalar,\n const EC_POINT *point,\n BN_CTX *ctx)\n{\n BIGNUM *x1, *x2, *z1, *z2;\n int ret = 0, i, group_top;\n BN_ULONG mask, word;\n if (r == point) {\n ECerr(EC_F_EC_GF2M_MONTGOMERY_POINT_MULTIPLY, EC_R_INVALID_ARGUMENT);\n return 0;\n }\n if ((scalar == NULL) || BN_is_zero(scalar) || (point == NULL) ||\n EC_POINT_is_at_infinity(group, point)) {\n return EC_POINT_set_to_infinity(group, r);\n }\n if (!point->Z_is_one)\n return 0;\n BN_CTX_start(ctx);\n x1 = BN_CTX_get(ctx);\n z1 = BN_CTX_get(ctx);\n if (z1 == NULL)\n goto err;\n x2 = r->X;\n z2 = r->Y;\n group_top = bn_get_top(group->field);\n if (bn_wexpand(x1, group_top) == NULL\n || bn_wexpand(z1, group_top) == NULL\n || bn_wexpand(x2, group_top) == NULL\n || bn_wexpand(z2, group_top) == NULL)\n goto err;\n if (!BN_GF2m_mod_arr(x1, point->X, group->poly))\n goto err;\n if (!BN_one(z1))\n goto err;\n if (!group->meth->field_sqr(group, z2, x1, ctx))\n goto err;\n if (!group->meth->field_sqr(group, x2, z2, ctx))\n goto err;\n if (!BN_GF2m_add(x2, x2, group->b))\n goto err;\n i = bn_get_top(scalar) - 1;\n mask = BN_TBIT;\n word = bn_get_words(scalar)[i];\n while (!(word & mask))\n mask >>= 1;\n mask >>= 1;\n if (!mask) {\n i--;\n mask = BN_TBIT;\n }\n for (; i >= 0; i--) {\n word = bn_get_words(scalar)[i];\n while (mask) {\n BN_consttime_swap(word & mask, x1, x2, group_top);\n BN_consttime_swap(word & mask, z1, z2, group_top);\n if (!gf2m_Madd(group, point->X, x2, z2, x1, z1, ctx))\n goto err;\n if (!gf2m_Mdouble(group, x1, z1, ctx))\n goto err;\n BN_consttime_swap(word & mask, x1, x2, group_top);\n BN_consttime_swap(word & mask, z1, z2, group_top);\n mask >>= 1;\n }\n mask = BN_TBIT;\n }\n i = gf2m_Mxy(group, point->X, point->Y, x1, z1, x2, z2, ctx);\n if (i == 0)\n goto err;\n else if (i == 1) {\n if (!EC_POINT_set_to_infinity(group, r))\n goto err;\n } else {\n if (!BN_one(r->Z))\n goto err;\n r->Z_is_one = 1;\n }\n BN_set_negative(r->X, 0);\n BN_set_negative(r->Y, 0);\n ret = 1;\n err:\n BN_CTX_end(ctx);\n return ret;\n}', 'BIGNUM *BN_CTX_get(BN_CTX *ctx)\n{\n BIGNUM *ret;\n CTXDBG_ENTRY("BN_CTX_get", ctx);\n if (ctx->err_stack || ctx->too_many)\n return NULL;\n if ((ret = BN_POOL_get(&ctx->pool, ctx->flags)) == NULL) {\n ctx->too_many = 1;\n BNerr(BN_F_BN_CTX_GET, BN_R_TOO_MANY_TEMPORARY_VARIABLES);\n return NULL;\n }\n BN_zero(ret);\n ctx->used++;\n CTXDBG_RET(ctx, ret);\n return ret;\n}', 'int BN_set_word(BIGNUM *a, BN_ULONG w)\n{\n bn_check_top(a);\n if (bn_expand(a, (int)sizeof(BN_ULONG) * 8) == NULL)\n return (0);\n a->neg = 0;\n a->d[0] = w;\n a->top = (w ? 1 : 0);\n bn_check_top(a);\n return (1);\n}', 'int BN_GF2m_mod_arr(BIGNUM *r, const BIGNUM *a, const int p[])\n{\n int j, k;\n int n, dN, d0, d1;\n BN_ULONG zz, *z;\n bn_check_top(a);\n if (!p[0]) {\n BN_zero(r);\n return 1;\n }\n if (a != r) {\n if (!bn_wexpand(r, a->top))\n return 0;\n for (j = 0; j < a->top; j++) {\n r->d[j] = a->d[j];\n }\n r->top = a->top;\n }\n z = r->d;\n dN = p[0] / BN_BITS2;\n for (j = r->top - 1; j > dN;) {\n zz = z[j];\n if (z[j] == 0) {\n j--;\n continue;\n }\n z[j] = 0;\n for (k = 1; p[k] != 0; k++) {\n n = p[0] - p[k];\n d0 = n % BN_BITS2;\n d1 = BN_BITS2 - d0;\n n /= BN_BITS2;\n z[j - n] ^= (zz >> d0);\n if (d0)\n z[j - n - 1] ^= (zz << d1);\n }\n n = dN;\n d0 = p[0] % BN_BITS2;\n d1 = BN_BITS2 - d0;\n z[j - n] ^= (zz >> d0);\n if (d0)\n z[j - n - 1] ^= (zz << d1);\n }\n while (j == dN) {\n d0 = p[0] % BN_BITS2;\n zz = z[dN] >> d0;\n if (zz == 0)\n break;\n d1 = BN_BITS2 - d0;\n if (d0)\n z[dN] = (z[dN] << d1) >> d1;\n else\n z[dN] = 0;\n z[0] ^= zz;\n for (k = 1; p[k] != 0; k++) {\n BN_ULONG tmp_ulong;\n n = p[k] / BN_BITS2;\n d0 = p[k] % BN_BITS2;\n d1 = BN_BITS2 - d0;\n z[n] ^= (zz << d0);\n if (d0 && (tmp_ulong = zz >> d1))\n z[n + 1] ^= tmp_ulong;\n }\n }\n bn_correct_top(r);\n return 1;\n}', 'static ossl_inline BIGNUM *bn_expand(BIGNUM *a, int bits)\n{\n if (bits > (INT_MAX - BN_BITS2 + 1))\n return NULL;\n if (((bits+BN_BITS2-1)/BN_BITS2) <= (a)->dmax)\n return a;\n return bn_expand2((a),(bits+BN_BITS2-1)/BN_BITS2);\n}', 'BIGNUM *bn_expand2(BIGNUM *b, int words)\n{\n bn_check_top(b);\n if (words > b->dmax) {\n BN_ULONG *a = bn_expand_internal(b, words);\n if (!a)\n return NULL;\n if (b->d) {\n OPENSSL_cleanse(b->d, b->dmax * sizeof(b->d[0]));\n bn_free_d(b);\n }\n b->d = a;\n b->dmax = words;\n }\n bn_check_top(b);\n return b;\n}', 'static BN_ULONG *bn_expand_internal(const BIGNUM *b, int words)\n{\n BN_ULONG *a = NULL;\n bn_check_top(b);\n if (words > (INT_MAX / (4 * BN_BITS2))) {\n BNerr(BN_F_BN_EXPAND_INTERNAL, BN_R_BIGNUM_TOO_LONG);\n return NULL;\n }\n if (BN_get_flags(b, BN_FLG_STATIC_DATA)) {\n BNerr(BN_F_BN_EXPAND_INTERNAL, BN_R_EXPAND_ON_STATIC_BIGNUM_DATA);\n return (NULL);\n }\n if (BN_get_flags(b, BN_FLG_SECURE))\n a = OPENSSL_secure_zalloc(words * sizeof(*a));\n else\n a = OPENSSL_zalloc(words * sizeof(*a));\n if (a == NULL) {\n BNerr(BN_F_BN_EXPAND_INTERNAL, ERR_R_MALLOC_FAILURE);\n return (NULL);\n }\n assert(b->top <= words);\n if (b->top > 0)\n memcpy(a, b->d, sizeof(*a) * b->top);\n return a;\n}'] |
17,447 | 0 | https://github.com/libav/libav/blob/dedfa00107dbbb319d0e33faac683557b86d1007/libavformat/utils.c/#L2560 | void avformat_close_input(AVFormatContext **ps)
{
AVFormatContext *s = *ps;
AVIOContext *pb = s->pb;
if ((s->iformat && s->iformat->flags & AVFMT_NOFILE) ||
(s->flags & AVFMT_FLAG_CUSTOM_IO))
pb = NULL;
flush_packet_queue(s);
if (s->iformat) {
if (s->iformat->read_close)
s->iformat->read_close(s);
}
avformat_free_context(s);
*ps = NULL;
avio_close(pb);
} | ['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}', 'int avio_close(AVIOContext *s)\n{\n URLContext *h;\n if (!s)\n return 0;\n avio_flush(s);\n h = s->opaque;\n av_freep(&s->buffer);\n av_free(s);\n return ffurl_close(h);\n}', 'void avio_flush(AVIOContext *s)\n{\n flush_buffer(s);\n s->must_flush = 0;\n}', 'static void flush_buffer(AVIOContext *s)\n{\n if (s->buf_ptr > s->buffer) {\n if (s->write_packet && !s->error) {\n int ret = s->write_packet(s->opaque, s->buffer,\n s->buf_ptr - s->buffer);\n if (ret < 0) {\n s->error = ret;\n }\n }\n if (s->update_checksum) {\n s->checksum = s->update_checksum(s->checksum, s->checksum_ptr,\n s->buf_ptr - s->checksum_ptr);\n s->checksum_ptr = s->buffer;\n }\n s->pos += s->buf_ptr - s->buffer;\n }\n s->buf_ptr = s->buffer;\n}'] |
17,448 | 0 | https://github.com/openssl/openssl/blob/09977dd095f3c655c99b9e1810a213f7eafa7364/crypto/bn/bn_sqr.c/#L167 | void bn_sqr_normal(BN_ULONG *r, const BN_ULONG *a, int n, BN_ULONG *tmp)
{
int i, j, max;
const BN_ULONG *ap;
BN_ULONG *rp;
max = n * 2;
ap = a;
rp = r;
rp[0] = rp[max - 1] = 0;
rp++;
j = n;
if (--j > 0) {
ap++;
rp[j] = bn_mul_words(rp, ap, j, ap[-1]);
rp += 2;
}
for (i = n - 2; i > 0; i--) {
j--;
ap++;
rp[j] = bn_mul_add_words(rp, ap, j, ap[-1]);
rp += 2;
}
bn_add_words(r, r, r, max);
bn_sqr_words(tmp, a, n);
bn_add_words(r, r, tmp, max);
} | ['int ec_GFp_simple_oct2point(const EC_GROUP *group, EC_POINT *point,\n const unsigned char *buf, size_t len, BN_CTX *ctx)\n{\n point_conversion_form_t form;\n int y_bit;\n BN_CTX *new_ctx = NULL;\n BIGNUM *x, *y;\n size_t field_len, enc_len;\n int ret = 0;\n if (len == 0) {\n ECerr(EC_F_EC_GFP_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_GFP_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_GFP_SIMPLE_OCT2POINT, EC_R_INVALID_ENCODING);\n return 0;\n }\n if (form == 0) {\n if (len != 1) {\n ECerr(EC_F_EC_GFP_SIMPLE_OCT2POINT, EC_R_INVALID_ENCODING);\n return 0;\n }\n return EC_POINT_set_to_infinity(group, point);\n }\n field_len = BN_num_bytes(group->field);\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_GFP_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 if (y == 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_GFP_SIMPLE_OCT2POINT, EC_R_INVALID_ENCODING);\n goto err;\n }\n if (form == POINT_CONVERSION_COMPRESSED) {\n if (!EC_POINT_set_compressed_coordinates_GFp\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_GFP_SIMPLE_OCT2POINT, EC_R_INVALID_ENCODING);\n goto err;\n }\n if (form == POINT_CONVERSION_HYBRID) {\n if (y_bit != BN_is_odd(y)) {\n ECerr(EC_F_EC_GFP_SIMPLE_OCT2POINT, EC_R_INVALID_ENCODING);\n goto err;\n }\n }\n if (!EC_POINT_set_affine_coordinates_GFp(group, point, x, y, ctx))\n goto err;\n }\n if (EC_POINT_is_on_curve(group, point, ctx) <= 0) {\n ECerr(EC_F_EC_GFP_SIMPLE_OCT2POINT, EC_R_POINT_IS_NOT_ON_CURVE);\n goto err;\n }\n ret = 1;\n err:\n BN_CTX_end(ctx);\n BN_CTX_free(new_ctx);\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 EC_POINT_set_compressed_coordinates_GFp(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_GFP,\n ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);\n return 0;\n }\n if (group->meth != point->meth) {\n ECerr(EC_F_EC_POINT_SET_COMPRESSED_COORDINATES_GFP,\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#ifdef OPENSSL_NO_EC2M\n {\n ECerr(EC_F_EC_POINT_SET_COMPRESSED_COORDINATES_GFP,\n EC_R_GF2M_NOT_SUPPORTED);\n return 0;\n }\n#else\n return ec_GF2m_simple_set_compressed_coordinates(group, point, x,\n y_bit, ctx);\n#endif\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}', '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_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 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_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}'] |
17,449 | 0 | https://github.com/openssl/openssl/blob/9c46f4b9cd4912b61cb546c48b678488d7f26ed6/crypto/bn/bn_prime.c/#L555 | static int probable_prime(BIGNUM *rnd, int bits)
{
int i;
prime_t mods[NUMPRIMES];
BN_ULONG delta;
BN_ULONG maxdelta = BN_MASK2 - primes[NUMPRIMES - 1];
char is_single_word = bits <= BN_BITS2;
again:
if (!BN_rand(rnd, bits, 1, 1))
return (0);
for (i = 1; i < NUMPRIMES; i++)
mods[i] = (prime_t) BN_mod_word(rnd, (BN_ULONG)primes[i]);
if (is_single_word) {
BN_ULONG size_limit = (((BN_ULONG)1) << bits) - BN_get_word(rnd) - 1;
if (size_limit < maxdelta)
maxdelta = size_limit;
}
delta = 0;
loop:
if (is_single_word) {
BN_ULONG rnd_word = BN_get_word(rnd);
for (i = 1; i < NUMPRIMES && primes[i] < rnd_word; i++) {
if ((mods[i] + delta) % primes[i] == 0) {
delta += 2;
if (delta > maxdelta)
goto again;
goto loop;
}
}
} else {
for (i = 1; i < NUMPRIMES; i++) {
if (((mods[i] + delta) % primes[i]) <= 1) {
delta += 2;
if (delta > maxdelta)
goto again;
goto loop;
}
}
}
if (!BN_add_word(rnd, delta))
return (0);
if (BN_num_bits(rnd) != bits)
goto again;
bn_check_top(rnd);
return (1);
} | ['static int probable_prime(BIGNUM *rnd, int bits)\n{\n int i;\n prime_t mods[NUMPRIMES];\n BN_ULONG delta;\n BN_ULONG maxdelta = BN_MASK2 - primes[NUMPRIMES - 1];\n char is_single_word = bits <= BN_BITS2;\n again:\n if (!BN_rand(rnd, bits, 1, 1))\n return (0);\n for (i = 1; i < NUMPRIMES; i++)\n mods[i] = (prime_t) BN_mod_word(rnd, (BN_ULONG)primes[i]);\n if (is_single_word) {\n BN_ULONG size_limit = (((BN_ULONG)1) << bits) - BN_get_word(rnd) - 1;\n if (size_limit < maxdelta)\n maxdelta = size_limit;\n }\n delta = 0;\n loop:\n if (is_single_word) {\n BN_ULONG rnd_word = BN_get_word(rnd);\n for (i = 1; i < NUMPRIMES && primes[i] < rnd_word; i++) {\n if ((mods[i] + delta) % primes[i] == 0) {\n delta += 2;\n if (delta > maxdelta)\n goto again;\n goto loop;\n }\n }\n } else {\n for (i = 1; i < NUMPRIMES; i++) {\n if (((mods[i] + delta) % primes[i]) <= 1) {\n delta += 2;\n if (delta > maxdelta)\n goto again;\n goto loop;\n }\n }\n }\n if (!BN_add_word(rnd, delta))\n return (0);\n if (BN_num_bits(rnd) != bits)\n goto again;\n bn_check_top(rnd);\n return (1);\n}'] |
17,450 | 0 | https://github.com/openssl/openssl/blob/5ea564f154ebe8bda2a0e091a312e2058edf437f/crypto/bn/bn_shift.c/#L112 | int BN_lshift(BIGNUM *r, const BIGNUM *a, int n)
{
int i, nw, lb, rb;
BN_ULONG *t, *f;
BN_ULONG l;
bn_check_top(r);
bn_check_top(a);
if (n < 0) {
BNerr(BN_F_BN_LSHIFT, BN_R_INVALID_SHIFT);
return 0;
}
nw = n / BN_BITS2;
if (bn_wexpand(r, a->top + nw + 1) == NULL)
return (0);
r->neg = a->neg;
lb = n % BN_BITS2;
rb = BN_BITS2 - lb;
f = a->d;
t = r->d;
t[a->top + nw] = 0;
if (lb == 0)
for (i = a->top - 1; i >= 0; i--)
t[nw + i] = f[i];
else
for (i = a->top - 1; i >= 0; i--) {
l = f[i];
t[nw + i + 1] |= (l >> rb) & BN_MASK2;
t[nw + i] = (l << lb) & BN_MASK2;
}
memset(t, 0, sizeof(*t) * nw);
r->top = a->top + nw + 1;
bn_correct_top(r);
bn_check_top(r);
return (1);
} | ['BIGNUM *int_bn_mod_inverse(BIGNUM *in,\n const BIGNUM *a, const BIGNUM *n, BN_CTX *ctx,\n int *pnoinv)\n{\n BIGNUM *A, *B, *X, *Y, *M, *D, *T, *R = NULL;\n BIGNUM *ret = NULL;\n int sign;\n if (pnoinv)\n *pnoinv = 0;\n if ((BN_get_flags(a, BN_FLG_CONSTTIME) != 0)\n || (BN_get_flags(n, BN_FLG_CONSTTIME) != 0)) {\n return BN_mod_inverse_no_branch(in, a, n, ctx);\n }\n bn_check_top(a);\n bn_check_top(n);\n BN_CTX_start(ctx);\n A = BN_CTX_get(ctx);\n B = BN_CTX_get(ctx);\n X = BN_CTX_get(ctx);\n D = BN_CTX_get(ctx);\n M = BN_CTX_get(ctx);\n Y = BN_CTX_get(ctx);\n T = BN_CTX_get(ctx);\n if (T == NULL)\n goto err;\n if (in == NULL)\n R = BN_new();\n else\n R = in;\n if (R == NULL)\n goto err;\n BN_one(X);\n BN_zero(Y);\n if (BN_copy(B, a) == NULL)\n goto err;\n if (BN_copy(A, n) == NULL)\n goto err;\n A->neg = 0;\n if (B->neg || (BN_ucmp(B, A) >= 0)) {\n if (!BN_nnmod(B, B, A, ctx))\n goto err;\n }\n sign = -1;\n if (BN_is_odd(n) && (BN_num_bits(n) <= 2048)) {\n int shift;\n while (!BN_is_zero(B)) {\n shift = 0;\n while (!BN_is_bit_set(B, shift)) {\n shift++;\n if (BN_is_odd(X)) {\n if (!BN_uadd(X, X, n))\n goto err;\n }\n if (!BN_rshift1(X, X))\n goto err;\n }\n if (shift > 0) {\n if (!BN_rshift(B, B, shift))\n goto err;\n }\n shift = 0;\n while (!BN_is_bit_set(A, shift)) {\n shift++;\n if (BN_is_odd(Y)) {\n if (!BN_uadd(Y, Y, n))\n goto err;\n }\n if (!BN_rshift1(Y, Y))\n goto err;\n }\n if (shift > 0) {\n if (!BN_rshift(A, A, shift))\n goto err;\n }\n if (BN_ucmp(B, A) >= 0) {\n if (!BN_uadd(X, X, Y))\n goto err;\n if (!BN_usub(B, B, A))\n goto err;\n } else {\n if (!BN_uadd(Y, Y, X))\n goto err;\n if (!BN_usub(A, A, B))\n goto err;\n }\n }\n } else {\n while (!BN_is_zero(B)) {\n BIGNUM *tmp;\n if (BN_num_bits(A) == BN_num_bits(B)) {\n if (!BN_one(D))\n goto err;\n if (!BN_sub(M, A, B))\n goto err;\n } else if (BN_num_bits(A) == BN_num_bits(B) + 1) {\n if (!BN_lshift1(T, B))\n goto err;\n if (BN_ucmp(A, T) < 0) {\n if (!BN_one(D))\n goto err;\n if (!BN_sub(M, A, B))\n goto err;\n } else {\n if (!BN_sub(M, A, T))\n goto err;\n if (!BN_add(D, T, B))\n goto err;\n if (BN_ucmp(A, D) < 0) {\n if (!BN_set_word(D, 2))\n goto err;\n } else {\n if (!BN_set_word(D, 3))\n goto err;\n if (!BN_sub(M, M, B))\n goto err;\n }\n }\n } else {\n if (!BN_div(D, M, A, B, ctx))\n goto err;\n }\n tmp = A;\n A = B;\n B = M;\n if (BN_is_one(D)) {\n if (!BN_add(tmp, X, Y))\n goto err;\n } else {\n if (BN_is_word(D, 2)) {\n if (!BN_lshift1(tmp, X))\n goto err;\n } else if (BN_is_word(D, 4)) {\n if (!BN_lshift(tmp, X, 2))\n goto err;\n } else if (D->top == 1) {\n if (!BN_copy(tmp, X))\n goto err;\n if (!BN_mul_word(tmp, D->d[0]))\n goto err;\n } else {\n if (!BN_mul(tmp, D, X, ctx))\n goto err;\n }\n if (!BN_add(tmp, tmp, Y))\n goto err;\n }\n M = Y;\n Y = X;\n X = tmp;\n sign = -sign;\n }\n }\n if (sign < 0) {\n if (!BN_sub(Y, n, Y))\n goto err;\n }\n if (BN_is_one(A)) {\n if (!Y->neg && BN_ucmp(Y, n) < 0) {\n if (!BN_copy(R, Y))\n goto err;\n } else {\n if (!BN_nnmod(R, Y, n, ctx))\n goto err;\n }\n } else {\n if (pnoinv)\n *pnoinv = 1;\n goto err;\n }\n ret = R;\n err:\n if ((ret == NULL) && (in == NULL))\n BN_free(R);\n BN_CTX_end(ctx);\n bn_check_top(ret);\n return (ret);\n}', '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 memcpy(a->d, b->d, sizeof(b->d[0]) * b->top);\n a->top = b->top;\n a->neg = b->neg;\n bn_check_top(a);\n return a;\n}', 'int BN_nnmod(BIGNUM *r, const BIGNUM *m, const BIGNUM *d, BN_CTX *ctx)\n{\n if (!(BN_mod(r, m, d, ctx)))\n return 0;\n if (!r->neg)\n return 1;\n return (d->neg ? BN_sub : BN_add) (r, r, d);\n}', 'int BN_div(BIGNUM *dv, BIGNUM *rm, const BIGNUM *num, const BIGNUM *divisor,\n BN_CTX *ctx)\n{\n int norm_shift, i, loop;\n BIGNUM *tmp, wnum, *snum, *sdiv, *res;\n BN_ULONG *resp, *wnump;\n BN_ULONG d0, d1;\n int num_n, div_n;\n int no_branch = 0;\n if ((num->top > 0 && num->d[num->top - 1] == 0) ||\n (divisor->top > 0 && divisor->d[divisor->top - 1] == 0)) {\n BNerr(BN_F_BN_DIV, BN_R_NOT_INITIALIZED);\n return 0;\n }\n bn_check_top(num);\n bn_check_top(divisor);\n if ((BN_get_flags(num, BN_FLG_CONSTTIME) != 0)\n || (BN_get_flags(divisor, BN_FLG_CONSTTIME) != 0)) {\n no_branch = 1;\n }\n bn_check_top(dv);\n bn_check_top(rm);\n if (BN_is_zero(divisor)) {\n BNerr(BN_F_BN_DIV, BN_R_DIV_BY_ZERO);\n return (0);\n }\n if (!no_branch && BN_ucmp(num, divisor) < 0) {\n if (rm != NULL) {\n if (BN_copy(rm, num) == NULL)\n return (0);\n }\n if (dv != NULL)\n BN_zero(dv);\n return (1);\n }\n BN_CTX_start(ctx);\n tmp = BN_CTX_get(ctx);\n snum = BN_CTX_get(ctx);\n sdiv = BN_CTX_get(ctx);\n if (dv == NULL)\n res = BN_CTX_get(ctx);\n else\n res = dv;\n if (sdiv == NULL || res == NULL || tmp == NULL || snum == NULL)\n goto err;\n norm_shift = BN_BITS2 - ((BN_num_bits(divisor)) % BN_BITS2);\n if (!(BN_lshift(sdiv, divisor, norm_shift)))\n goto err;\n sdiv->neg = 0;\n norm_shift += BN_BITS2;\n if (!(BN_lshift(snum, num, norm_shift)))\n goto err;\n snum->neg = 0;\n if (no_branch) {\n if (snum->top <= sdiv->top + 1) {\n if (bn_wexpand(snum, sdiv->top + 2) == NULL)\n goto err;\n for (i = snum->top; i < sdiv->top + 2; i++)\n snum->d[i] = 0;\n snum->top = sdiv->top + 2;\n } else {\n if (bn_wexpand(snum, snum->top + 1) == NULL)\n goto err;\n snum->d[snum->top] = 0;\n snum->top++;\n }\n }\n div_n = sdiv->top;\n num_n = snum->top;\n loop = num_n - div_n;\n wnum.neg = 0;\n wnum.d = &(snum->d[loop]);\n wnum.top = div_n;\n wnum.dmax = snum->dmax - loop;\n d0 = sdiv->d[div_n - 1];\n d1 = (div_n == 1) ? 0 : sdiv->d[div_n - 2];\n wnump = &(snum->d[num_n - 1]);\n if (!bn_wexpand(res, (loop + 1)))\n goto err;\n res->neg = (num->neg ^ divisor->neg);\n res->top = loop - no_branch;\n resp = &(res->d[loop - 1]);\n if (!bn_wexpand(tmp, (div_n + 1)))\n goto err;\n if (!no_branch) {\n if (BN_ucmp(&wnum, sdiv) >= 0) {\n bn_clear_top2max(&wnum);\n bn_sub_words(wnum.d, wnum.d, sdiv->d, div_n);\n *resp = 1;\n } else\n res->top--;\n }\n resp++;\n if (res->top == 0)\n res->neg = 0;\n else\n resp--;\n for (i = 0; i < loop - 1; i++, wnump--) {\n BN_ULONG q, l0;\n# if defined(BN_DIV3W) && !defined(OPENSSL_NO_ASM)\n BN_ULONG bn_div_3_words(BN_ULONG *, BN_ULONG, BN_ULONG);\n q = bn_div_3_words(wnump, d1, d0);\n# else\n BN_ULONG n0, n1, rem = 0;\n n0 = wnump[0];\n n1 = wnump[-1];\n if (n0 == d0)\n q = BN_MASK2;\n else {\n# ifdef BN_LLONG\n BN_ULLONG t2;\n# if defined(BN_LLONG) && defined(BN_DIV2W) && !defined(bn_div_words)\n q = (BN_ULONG)(((((BN_ULLONG) n0) << BN_BITS2) | n1) / d0);\n# else\n q = bn_div_words(n0, n1, d0);\n# endif\n# ifndef REMAINDER_IS_ALREADY_CALCULATED\n rem = (n1 - q * d0) & BN_MASK2;\n# endif\n t2 = (BN_ULLONG) d1 *q;\n for (;;) {\n if (t2 <= ((((BN_ULLONG) rem) << BN_BITS2) | wnump[-2]))\n break;\n q--;\n rem += d0;\n if (rem < d0)\n break;\n t2 -= d1;\n }\n# else\n BN_ULONG t2l, t2h;\n q = bn_div_words(n0, n1, d0);\n# ifndef REMAINDER_IS_ALREADY_CALCULATED\n rem = (n1 - q * d0) & BN_MASK2;\n# endif\n# if defined(BN_UMULT_LOHI)\n BN_UMULT_LOHI(t2l, t2h, d1, q);\n# elif defined(BN_UMULT_HIGH)\n t2l = d1 * q;\n t2h = BN_UMULT_HIGH(d1, q);\n# else\n {\n BN_ULONG ql, qh;\n t2l = LBITS(d1);\n t2h = HBITS(d1);\n ql = LBITS(q);\n qh = HBITS(q);\n mul64(t2l, t2h, ql, qh);\n }\n# endif\n for (;;) {\n if ((t2h < rem) || ((t2h == rem) && (t2l <= wnump[-2])))\n break;\n q--;\n rem += d0;\n if (rem < d0)\n break;\n if (t2l < d1)\n t2h--;\n t2l -= d1;\n }\n# endif\n }\n# endif\n l0 = bn_mul_words(tmp->d, sdiv->d, div_n, q);\n tmp->d[div_n] = l0;\n wnum.d--;\n if (bn_sub_words(wnum.d, wnum.d, tmp->d, div_n + 1)) {\n q--;\n if (bn_add_words(wnum.d, wnum.d, sdiv->d, div_n))\n (*wnump)++;\n }\n resp--;\n *resp = q;\n }\n bn_correct_top(snum);\n if (rm != NULL) {\n int neg = num->neg;\n BN_rshift(rm, snum, norm_shift);\n if (!BN_is_zero(rm))\n rm->neg = neg;\n bn_check_top(rm);\n }\n if (no_branch)\n bn_correct_top(res);\n BN_CTX_end(ctx);\n return (1);\n err:\n bn_check_top(rm);\n BN_CTX_end(ctx);\n return (0);\n}', 'int BN_lshift(BIGNUM *r, const BIGNUM *a, int n)\n{\n int i, nw, lb, rb;\n BN_ULONG *t, *f;\n BN_ULONG l;\n bn_check_top(r);\n bn_check_top(a);\n if (n < 0) {\n BNerr(BN_F_BN_LSHIFT, BN_R_INVALID_SHIFT);\n return 0;\n }\n nw = n / BN_BITS2;\n if (bn_wexpand(r, a->top + nw + 1) == NULL)\n return (0);\n r->neg = a->neg;\n lb = n % BN_BITS2;\n rb = BN_BITS2 - lb;\n f = a->d;\n t = r->d;\n t[a->top + nw] = 0;\n if (lb == 0)\n for (i = a->top - 1; i >= 0; i--)\n t[nw + i] = f[i];\n else\n for (i = a->top - 1; i >= 0; i--) {\n l = f[i];\n t[nw + i + 1] |= (l >> rb) & BN_MASK2;\n t[nw + i] = (l << lb) & BN_MASK2;\n }\n memset(t, 0, sizeof(*t) * nw);\n r->top = a->top + nw + 1;\n bn_correct_top(r);\n bn_check_top(r);\n return (1);\n}', 'BIGNUM *bn_wexpand(BIGNUM *a, int words)\n{\n return (words <= a->dmax) ? a : bn_expand2(a, words);\n}'] |
17,451 | 0 | https://github.com/openssl/openssl/blob/da0616cd135a110e99b19f2288a00e8841e6ce59/crypto/asn1/t_x509.c/#L401 | int ASN1_GENERALIZEDTIME_print(BIO *bp, ASN1_GENERALIZEDTIME *tm)
{
char *v;
int gmt=0;
int i;
int y=0,M=0,d=0,h=0,m=0,s=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 ( (v[12] >= '0') && (v[12] <= '9') &&
(v[13] >= '0') && (v[13] <= '9'))
s= (v[12]-'0')*10+(v[13]-'0');
if (BIO_printf(bp,"%s %2d %02d:%02d:%02d %d%s",
mon[M-1],d,h,m,s,y,(gmt)?" GMT":"") <= 0)
return(0);
else
return(1);
err:
BIO_write(bp,"Bad time value",14);
return(0);
} | ['static int print_ocsp_summary(BIO *out, OCSP_BASICRESP *bs, OCSP_REQUEST *req,\n\t\t\t\t\tSTACK *names, STACK_OF(OCSP_CERTID) *ids,\n\t\t\t\t\tlong nsec, long maxage)\n\t{\n\tOCSP_CERTID *id;\n\tchar *name;\n\tint i;\n\tint status, reason;\n\tASN1_GENERALIZEDTIME *rev, *thisupd, *nextupd;\n\tif (!bs || !req || !sk_num(names) || !sk_OCSP_CERTID_num(ids))\n\t\treturn 1;\n\tfor (i = 0; i < sk_OCSP_CERTID_num(ids); i++)\n\t\t{\n\t\tid = sk_OCSP_CERTID_value(ids, i);\n\t\tname = sk_value(names, i);\n\t\tBIO_printf(out, "%s: ", name);\n\t\tif(!OCSP_resp_find_status(bs, id, &status, &reason,\n\t\t\t\t\t&rev, &thisupd, &nextupd))\n\t\t\t{\n\t\t\tBIO_puts(out, "ERROR: No Status found.\\n");\n\t\t\tcontinue;\n\t\t\t}\n\t\tif (!OCSP_check_validity(thisupd, nextupd, nsec, maxage))\n\t\t\t{\n\t\t\tBIO_puts(out, "WARNING: Status times invalid.\\n");\n\t\t\tERR_print_errors(out);\n\t\t\t}\n\t\tBIO_printf(out, "%s\\n", OCSP_cert_status_str(status));\n\t\tBIO_puts(out, "\\tThis Update: ");\n\t\tASN1_GENERALIZEDTIME_print(out, thisupd);\n\t\tBIO_puts(out, "\\n");\n\t\tif(nextupd)\n\t\t\t{\n\t\t\tBIO_puts(out, "\\tNext Update: ");\n\t\t\tASN1_GENERALIZEDTIME_print(out, nextupd);\n\t\t\tBIO_puts(out, "\\n");\n\t\t\t}\n\t\tif (status != V_OCSP_CERTSTATUS_REVOKED)\n\t\t\tcontinue;\n\t\tif (reason != -1)\n\t\t\tBIO_printf(out, "\\tReason: %s\\n",\n\t\t\t\tOCSP_crl_reason_str(reason));\n\t\tBIO_puts(out, "\\tRevocation Time: ");\n\t\tASN1_GENERALIZEDTIME_print(out, rev);\n\t\tBIO_puts(out, "\\n");\n\t\t}\n\treturn 1;\n\t}', 'int OCSP_resp_find_status(OCSP_BASICRESP *bs, OCSP_CERTID *id, int *status,\n\t\t\t\tint *reason,\n\t\t\t\tASN1_GENERALIZEDTIME **revtime,\n\t\t\t\tASN1_GENERALIZEDTIME **thisupd,\n\t\t\t\tASN1_GENERALIZEDTIME **nextupd)\n\t{\n\tint i;\n\tOCSP_SINGLERESP *single;\n\ti = OCSP_resp_find(bs, id, -1);\n\tif(i < 0) return 0;\n\tsingle = OCSP_resp_get0(bs, i);\n\ti = OCSP_single_get0_status(single, reason, revtime, thisupd, nextupd);\n\tif(status) *status = i;\n\treturn 1;\n\t}', 'int OCSP_single_get0_status(OCSP_SINGLERESP *single, int *reason,\n\t\t\t\tASN1_GENERALIZEDTIME **revtime,\n\t\t\t\tASN1_GENERALIZEDTIME **thisupd,\n\t\t\t\tASN1_GENERALIZEDTIME **nextupd)\n\t{\n\tint ret;\n\tOCSP_CERTSTATUS *cst;\n\tif(!single) return -1;\n\tcst = single->certStatus;\n\tret = cst->type;\n\tif (ret == V_OCSP_CERTSTATUS_REVOKED)\n\t\t{\n\t\tOCSP_REVOKEDINFO *rev = cst->value.revoked;\n\t\tif (revtime) *revtime = rev->revocationTime;\n\t\tif (reason)\n\t\t\t{\n\t\t\tif(rev->revocationReason)\n\t\t\t\t*reason = ASN1_ENUMERATED_get(rev->revocationReason);\n\t\t\telse *reason = -1;\n\t\t\t}\n\t\t}\n\tif(thisupd) *thisupd = single->thisUpdate;\n\tif(nextupd) *nextupd = single->nextUpdate;\n\treturn ret;\n\t}', 'int OCSP_check_validity(ASN1_GENERALIZEDTIME *thisupd, ASN1_GENERALIZEDTIME *nextupd, long nsec, long maxsec)\n\t{\n\tint ret = 1;\n\ttime_t t_now, t_tmp;\n\ttime(&t_now);\n\tif (!ASN1_GENERALIZEDTIME_check(thisupd))\n\t\t{\n\t\tOCSPerr(OCSP_F_OCSP_CHECK_VALIDITY, OCSP_R_ERROR_IN_THISUPDATE_FIELD);\n\t\tret = 0;\n\t\t}\n\telse\n\t\t{\n\t\t\tt_tmp = t_now + nsec;\n\t\t\tif (X509_cmp_time(thisupd, &t_tmp) > 0)\n\t\t\t{\n\t\t\tOCSPerr(OCSP_F_OCSP_CHECK_VALIDITY, OCSP_R_STATUS_NOT_YET_VALID);\n\t\t\tret = 0;\n\t\t\t}\n\t\tif (maxsec >= 0)\n\t\t\t{\n\t\t\tt_tmp = t_now - maxsec;\n\t\t\tif (X509_cmp_time(thisupd, &t_tmp) < 0)\n\t\t\t\t{\n\t\t\t\tOCSPerr(OCSP_F_OCSP_CHECK_VALIDITY, OCSP_R_STATUS_TOO_OLD);\n\t\t\t\tret = 0;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\tif (!nextupd) return ret;\n\tif (!ASN1_GENERALIZEDTIME_check(nextupd))\n\t\t{\n\t\tOCSPerr(OCSP_F_OCSP_CHECK_VALIDITY, OCSP_R_ERROR_IN_NEXTUPDATE_FIELD);\n\t\tret = 0;\n\t\t}\n\telse\n\t\t{\n\t\tt_tmp = t_now - nsec;\n\t\tif (X509_cmp_time(nextupd, &t_tmp) < 0)\n\t\t\t{\n\t\t\tOCSPerr(OCSP_F_OCSP_CHECK_VALIDITY, OCSP_R_STATUS_EXPIRED);\n\t\t\tret = 0;\n\t\t\t}\n\t\t}\n\tif (ASN1_STRING_cmp(nextupd, thisupd) < 0)\n\t\t{\n\t\tOCSPerr(OCSP_F_OCSP_CHECK_VALIDITY, OCSP_R_NEXTUPDATE_BEFORE_THISUPDATE);\n\t\tret = 0;\n\t\t}\n\treturn ret;\n\t}', 'int ASN1_GENERALIZEDTIME_print(BIO *bp, ASN1_GENERALIZEDTIME *tm)\n\t{\n\tchar *v;\n\tint gmt=0;\n\tint i;\n\tint y=0,M=0,d=0,h=0,m=0,s=0;\n\ti=tm->length;\n\tv=(char *)tm->data;\n\tif (i < 12) goto err;\n\tif (v[i-1] == \'Z\') gmt=1;\n\tfor (i=0; i<12; i++)\n\t\tif ((v[i] > \'9\') || (v[i] < \'0\')) goto err;\n\ty= (v[0]-\'0\')*1000+(v[1]-\'0\')*100 + (v[2]-\'0\')*10+(v[3]-\'0\');\n\tM= (v[4]-\'0\')*10+(v[5]-\'0\');\n\tif ((M > 12) || (M < 1)) goto err;\n\td= (v[6]-\'0\')*10+(v[7]-\'0\');\n\th= (v[8]-\'0\')*10+(v[9]-\'0\');\n\tm= (v[10]-\'0\')*10+(v[11]-\'0\');\n\tif (\t(v[12] >= \'0\') && (v[12] <= \'9\') &&\n\t\t(v[13] >= \'0\') && (v[13] <= \'9\'))\n\t\ts= (v[12]-\'0\')*10+(v[13]-\'0\');\n\tif (BIO_printf(bp,"%s %2d %02d:%02d:%02d %d%s",\n\t\tmon[M-1],d,h,m,s,y,(gmt)?" GMT":"") <= 0)\n\t\treturn(0);\n\telse\n\t\treturn(1);\nerr:\n\tBIO_write(bp,"Bad time value",14);\n\treturn(0);\n\t}'] |
17,452 | 0 | https://github.com/openssl/openssl/blob/d40a1b865fddc3d67f8c06ff1f1466fad331c8f7/crypto/mem.c/#L329 | char *CRYPTO_strdup(const char *str, const char *file, int line)
{
char *ret = CRYPTO_malloc(strlen(str)+1, file, line);
strcpy(ret, str);
return ret;
} | ['char *CRYPTO_strdup(const char *str, const char *file, int line)\n\t{\n\tchar *ret = CRYPTO_malloc(strlen(str)+1, file, line);\n\tstrcpy(ret, str);\n\treturn ret;\n\t}', 'void *CRYPTO_malloc(size_t num, const char *file, int line)\n\t{\n\tvoid *ret = NULL;\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#ifndef OPENSSL_CPUID_OBJ\n if(ret && (num > 2048))\n\t{\textern unsigned char cleanse_ctr;\n ((unsigned char *)ret)[0] = cleanse_ctr;\n\t}\n#endif\n\treturn ret;\n\t}'] |
17,453 | 0 | https://github.com/openssl/openssl/blob/f006217bb628d05a2d5b866ff252bd94e3477e1f/crypto/srp/srp_lib.c/#L289 | BIGNUM *SRP_Calc_client_key(BIGNUM *N, BIGNUM *B, BIGNUM *g, BIGNUM *x,
BIGNUM *a, BIGNUM *u)
{
BIGNUM *tmp = NULL, *tmp2 = NULL, *tmp3 = NULL, *k = NULL, *K = NULL;
BN_CTX *bn_ctx;
if (u == NULL || B == NULL || N == NULL || g == NULL || x == NULL
|| a == NULL || (bn_ctx = BN_CTX_new()) == NULL)
return NULL;
if ((tmp = BN_new()) == NULL ||
(tmp2 = BN_new()) == NULL ||
(tmp3 = BN_new()) == NULL ||
(K = BN_new()) == NULL)
goto err;
if (!BN_mod_exp(tmp, g, x, N, bn_ctx))
goto err;
if ((k = srp_Calc_k(N, g)) == NULL)
goto err;
if (!BN_mod_mul(tmp2, tmp, k, N, bn_ctx))
goto err;
if (!BN_mod_sub(tmp, B, tmp2, N, bn_ctx))
goto err;
if (!BN_mod_mul(tmp3, u, x, N, bn_ctx))
goto err;
if (!BN_mod_add(tmp2, a, tmp3, N, bn_ctx))
goto err;
if (!BN_mod_exp(K, tmp, tmp2, N, bn_ctx))
goto err;
err:
BN_CTX_free(bn_ctx);
BN_clear_free(tmp);
BN_clear_free(tmp2);
BN_clear_free(tmp3);
BN_free(k);
return K;
} | ['BIGNUM *SRP_Calc_client_key(BIGNUM *N, BIGNUM *B, BIGNUM *g, BIGNUM *x,\n BIGNUM *a, BIGNUM *u)\n{\n BIGNUM *tmp = NULL, *tmp2 = NULL, *tmp3 = NULL, *k = NULL, *K = NULL;\n BN_CTX *bn_ctx;\n if (u == NULL || B == NULL || N == NULL || g == NULL || x == NULL\n || a == NULL || (bn_ctx = BN_CTX_new()) == NULL)\n return NULL;\n if ((tmp = BN_new()) == NULL ||\n (tmp2 = BN_new()) == NULL ||\n (tmp3 = BN_new()) == NULL ||\n (K = BN_new()) == NULL)\n goto err;\n if (!BN_mod_exp(tmp, g, x, N, bn_ctx))\n goto err;\n if ((k = srp_Calc_k(N, g)) == NULL)\n goto err;\n if (!BN_mod_mul(tmp2, tmp, k, N, bn_ctx))\n goto err;\n if (!BN_mod_sub(tmp, B, tmp2, N, bn_ctx))\n goto err;\n if (!BN_mod_mul(tmp3, u, x, N, bn_ctx))\n goto err;\n if (!BN_mod_add(tmp2, a, tmp3, N, bn_ctx))\n goto err;\n if (!BN_mod_exp(K, tmp, tmp2, N, bn_ctx))\n goto err;\n err:\n BN_CTX_free(bn_ctx);\n BN_clear_free(tmp);\n BN_clear_free(tmp2);\n BN_clear_free(tmp3);\n BN_free(k);\n return K;\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}', 'void BN_CTX_free(BN_CTX *ctx)\n{\n if (ctx == NULL)\n return;\n#ifdef BN_CTX_DEBUG\n {\n BN_POOL_ITEM *pool = ctx->pool.head;\n fprintf(stderr, "BN_CTX_free, stack-size=%d, pool-bignums=%d\\n",\n ctx->stack.size, ctx->pool.size);\n fprintf(stderr, "dmaxs: ");\n while (pool) {\n unsigned loop = 0;\n while (loop < BN_CTX_POOL_SIZE)\n fprintf(stderr, "%02x ", pool->vals[loop++].dmax);\n pool = pool->next;\n }\n fprintf(stderr, "\\n");\n }\n#endif\n BN_STACK_finish(&ctx->stack);\n BN_POOL_finish(&ctx->pool);\n OPENSSL_free(ctx);\n}', 'static void BN_STACK_finish(BN_STACK *st)\n{\n OPENSSL_free(st->indexes);\n st->indexes = NULL;\n}', 'void CRYPTO_free(void *str)\n{\n#ifndef OPENSSL_NO_CRYPTO_MDEBUG\n if (call_malloc_debug) {\n CRYPTO_mem_debug_free(str, 0);\n free(str);\n CRYPTO_mem_debug_free(str, 1);\n } else {\n free(str);\n }\n#else\n free(str);\n#endif\n}', 'static void BN_POOL_finish(BN_POOL *p)\n{\n unsigned int loop;\n BIGNUM *bn;\n while (p->head) {\n for (loop = 0, bn = p->head->vals; loop++ < BN_CTX_POOL_SIZE; bn++)\n if (bn->d)\n BN_clear_free(bn);\n p->current = p->head->next;\n OPENSSL_free(p->head);\n p->head = p->current;\n }\n}', 'void BN_clear_free(BIGNUM *a)\n{\n int i;\n if (a == NULL)\n return;\n bn_check_top(a);\n if (a->d != NULL) {\n OPENSSL_cleanse(a->d, a->dmax * sizeof(a->d[0]));\n if (!BN_get_flags(a, BN_FLG_STATIC_DATA))\n bn_free_d(a);\n }\n i = BN_get_flags(a, BN_FLG_MALLOCED);\n OPENSSL_cleanse(a, sizeof(*a));\n if (i)\n OPENSSL_free(a);\n}', 'int BN_get_flags(const BIGNUM *b, int n)\n{\n return b->flags & n;\n}'] |
17,454 | 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)];
} | ['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}', '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_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}'] |
17,455 | 0 | https://github.com/openssl/openssl/blob/14c6d27d63795ead1b70d97e3303731b433c0db8/crypto/lhash/lhash.c/#L240 | void *lh_delete(LHASH *lh, void *data)
{
unsigned long hash;
LHASH_NODE *nn,**rn;
void *ret;
lh->error=0;
rn=getrn(lh,data,&hash);
if (*rn == NULL)
{
lh->num_no_delete++;
return(NULL);
}
else
{
nn= *rn;
*rn=nn->next;
ret=nn->data;
OPENSSL_free(nn);
lh->num_delete++;
}
lh->num_items--;
if ((lh->num_nodes > MIN_NODES) &&
(lh->down_load >= (lh->num_items*LH_LOAD_MULT/lh->num_nodes)))
contract(lh);
return(ret);
} | ['int MAIN(int argc, char **argv)\n\t{\n\tint off=0;\n\tSSL *con=NULL,*con2=NULL;\n\tint s,k,width,state=0;\n\tchar *cbuf=NULL,*sbuf=NULL;\n\tint cbuf_len,cbuf_off;\n\tint sbuf_len,sbuf_off;\n\tfd_set readfds,writefds;\n\tshort port=PORT;\n\tint full_log=1;\n\tchar *host=SSL_HOST_NAME;\n\tchar *cert_file=NULL,*key_file=NULL;\n\tchar *CApath=NULL,*CAfile=NULL,*cipher=NULL;\n\tint reconnect=0,badop=0,verify=SSL_VERIFY_NONE,bugs=0;\n\tint crlf=0;\n\tint write_tty,read_tty,write_ssl,read_ssl,tty_on,ssl_pending;\n\tSSL_CTX *ctx=NULL;\n\tint ret=1,in_init=1,i,nbio_test=0;\n\tint prexit = 0;\n\tSSL_METHOD *meth=NULL;\n\tBIO *sbio;\n\tchar *engine_id=NULL;\n\tENGINE *e=NULL;\n#ifdef WINDOWS\n\tstruct timeval tv;\n#endif\n#if !defined(NO_SSL2) && !defined(NO_SSL3)\n\tmeth=SSLv23_client_method();\n#elif !defined(NO_SSL3)\n\tmeth=SSLv3_client_method();\n#elif !defined(NO_SSL2)\n\tmeth=SSLv2_client_method();\n#endif\n\tapps_startup();\n\tc_Pause=0;\n\tc_quiet=0;\n\tc_ign_eof=0;\n\tc_debug=0;\n\tc_showcerts=0;\n\tif (bio_err == NULL)\n\t\tbio_err=BIO_new_fp(stderr,BIO_NOCLOSE);\n\tif (\t((cbuf=OPENSSL_malloc(BUFSIZZ)) == NULL) ||\n\t\t((sbuf=OPENSSL_malloc(BUFSIZZ)) == NULL))\n\t\t{\n\t\tBIO_printf(bio_err,"out of memory\\n");\n\t\tgoto end;\n\t\t}\n\tverify_depth=0;\n\tverify_error=X509_V_OK;\n#ifdef FIONBIO\n\tc_nbio=0;\n#endif\n\targc--;\n\targv++;\n\twhile (argc >= 1)\n\t\t{\n\t\tif\t(strcmp(*argv,"-host") == 0)\n\t\t\t{\n\t\t\tif (--argc < 1) goto bad;\n\t\t\thost= *(++argv);\n\t\t\t}\n\t\telse if\t(strcmp(*argv,"-port") == 0)\n\t\t\t{\n\t\t\tif (--argc < 1) goto bad;\n\t\t\tport=atoi(*(++argv));\n\t\t\tif (port == 0) goto bad;\n\t\t\t}\n\t\telse if (strcmp(*argv,"-connect") == 0)\n\t\t\t{\n\t\t\tif (--argc < 1) goto bad;\n\t\t\tif (!extract_host_port(*(++argv),&host,NULL,&port))\n\t\t\t\tgoto bad;\n\t\t\t}\n\t\telse if\t(strcmp(*argv,"-verify") == 0)\n\t\t\t{\n\t\t\tverify=SSL_VERIFY_PEER;\n\t\t\tif (--argc < 1) goto bad;\n\t\t\tverify_depth=atoi(*(++argv));\n\t\t\tBIO_printf(bio_err,"verify depth is %d\\n",verify_depth);\n\t\t\t}\n\t\telse if\t(strcmp(*argv,"-cert") == 0)\n\t\t\t{\n\t\t\tif (--argc < 1) goto bad;\n\t\t\tcert_file= *(++argv);\n\t\t\t}\n\t\telse if\t(strcmp(*argv,"-prexit") == 0)\n\t\t\tprexit=1;\n\t\telse if\t(strcmp(*argv,"-crlf") == 0)\n\t\t\tcrlf=1;\n\t\telse if\t(strcmp(*argv,"-quiet") == 0)\n\t\t\t{\n\t\t\tc_quiet=1;\n\t\t\tc_ign_eof=1;\n\t\t\t}\n\t\telse if\t(strcmp(*argv,"-ign_eof") == 0)\n\t\t\tc_ign_eof=1;\n\t\telse if\t(strcmp(*argv,"-pause") == 0)\n\t\t\tc_Pause=1;\n\t\telse if\t(strcmp(*argv,"-debug") == 0)\n\t\t\tc_debug=1;\n\t\telse if\t(strcmp(*argv,"-showcerts") == 0)\n\t\t\tc_showcerts=1;\n\t\telse if\t(strcmp(*argv,"-nbio_test") == 0)\n\t\t\tnbio_test=1;\n\t\telse if\t(strcmp(*argv,"-state") == 0)\n\t\t\tstate=1;\n#ifndef NO_SSL2\n\t\telse if\t(strcmp(*argv,"-ssl2") == 0)\n\t\t\tmeth=SSLv2_client_method();\n#endif\n#ifndef NO_SSL3\n\t\telse if\t(strcmp(*argv,"-ssl3") == 0)\n\t\t\tmeth=SSLv3_client_method();\n#endif\n#ifndef NO_TLS1\n\t\telse if\t(strcmp(*argv,"-tls1") == 0)\n\t\t\tmeth=TLSv1_client_method();\n#endif\n\t\telse if (strcmp(*argv,"-bugs") == 0)\n\t\t\tbugs=1;\n\t\telse if\t(strcmp(*argv,"-key") == 0)\n\t\t\t{\n\t\t\tif (--argc < 1) goto bad;\n\t\t\tkey_file= *(++argv);\n\t\t\t}\n\t\telse if\t(strcmp(*argv,"-reconnect") == 0)\n\t\t\t{\n\t\t\treconnect=5;\n\t\t\t}\n\t\telse if\t(strcmp(*argv,"-CApath") == 0)\n\t\t\t{\n\t\t\tif (--argc < 1) goto bad;\n\t\t\tCApath= *(++argv);\n\t\t\t}\n\t\telse if\t(strcmp(*argv,"-CAfile") == 0)\n\t\t\t{\n\t\t\tif (--argc < 1) goto bad;\n\t\t\tCAfile= *(++argv);\n\t\t\t}\n\t\telse if (strcmp(*argv,"-no_tls1") == 0)\n\t\t\toff|=SSL_OP_NO_TLSv1;\n\t\telse if (strcmp(*argv,"-no_ssl3") == 0)\n\t\t\toff|=SSL_OP_NO_SSLv3;\n\t\telse if (strcmp(*argv,"-no_ssl2") == 0)\n\t\t\toff|=SSL_OP_NO_SSLv2;\n\t\telse if\t(strcmp(*argv,"-cipher") == 0)\n\t\t\t{\n\t\t\tif (--argc < 1) goto bad;\n\t\t\tcipher= *(++argv);\n\t\t\t}\n#ifdef FIONBIO\n\t\telse if (strcmp(*argv,"-nbio") == 0)\n\t\t\t{ c_nbio=1; }\n#endif\n\t\telse if\t(strcmp(*argv,"-engine") == 0)\n\t\t\t{\n\t\t\tif (--argc < 1) goto bad;\n\t\t\tengine_id = *(++argv);\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\tbadop=1;\n\t\t\tbreak;\n\t\t\t}\n\t\targc--;\n\t\targv++;\n\t\t}\n\tif (badop)\n\t\t{\nbad:\n\t\tsc_usage();\n\t\tgoto end;\n\t\t}\n\tapp_RAND_load_file(NULL, bio_err, 0);\n\tif (bio_c_out == NULL)\n\t\t{\n\t\tif (c_quiet)\n\t\t\t{\n\t\t\tbio_c_out=BIO_new(BIO_s_null());\n\t\t\t}\n\t\telse\n\t\t\t{\n\t\t\tif (bio_c_out == NULL)\n\t\t\t\tbio_c_out=BIO_new_fp(stdout,BIO_NOCLOSE);\n\t\t\t}\n\t\t}\n\tOpenSSL_add_ssl_algorithms();\n\tSSL_load_error_strings();\n\tif (engine_id != NULL)\n\t\t{\n\t\tif((e = ENGINE_by_id(engine_id)) == NULL)\n\t\t\t{\n\t\t\tBIO_printf(bio_err,"invalid engine\\n");\n\t\t\tERR_print_errors(bio_err);\n\t\t\tgoto end;\n\t\t\t}\n\t\tif (c_debug)\n\t\t\t{\n\t\t\tENGINE_ctrl(e, ENGINE_CTRL_SET_LOGSTREAM,\n\t\t\t\t0, bio_err, 0);\n\t\t\t}\n\t\tif(!ENGINE_set_default(e, ENGINE_METHOD_ALL))\n\t\t\t{\n\t\t\tBIO_printf(bio_err,"can\'t use that engine\\n");\n\t\t\tERR_print_errors(bio_err);\n\t\t\tgoto end;\n\t\t\t}\n\t\tBIO_printf(bio_err,"engine \\"%s\\" set.\\n", engine_id);\n\t\tENGINE_free(e);\n\t\t}\n\tctx=SSL_CTX_new(meth);\n\tif (ctx == NULL)\n\t\t{\n\t\tERR_print_errors(bio_err);\n\t\tgoto end;\n\t\t}\n\tif (bugs)\n\t\tSSL_CTX_set_options(ctx,SSL_OP_ALL|off);\n\telse\n\t\tSSL_CTX_set_options(ctx,off);\n\tif (state) SSL_CTX_set_info_callback(ctx,apps_ssl_info_callback);\n\tif (cipher != NULL)\n\t\tif(!SSL_CTX_set_cipher_list(ctx,cipher)) {\n\t\tBIO_printf(bio_err,"error setting cipher list\\n");\n\t\tERR_print_errors(bio_err);\n\t\tgoto end;\n\t}\n#if 0\n\telse\n\t\tSSL_CTX_set_cipher_list(ctx,getenv("SSL_CIPHER"));\n#endif\n\tSSL_CTX_set_verify(ctx,verify,verify_callback);\n\tif (!set_cert_stuff(ctx,cert_file,key_file))\n\t\tgoto end;\n\tif ((!SSL_CTX_load_verify_locations(ctx,CAfile,CApath)) ||\n\t\t(!SSL_CTX_set_default_verify_paths(ctx)))\n\t\t{\n\t\tERR_print_errors(bio_err);\n\t\t}\n\tcon=SSL_new(ctx);\nre_start:\n\tif (init_client(&s,host,port) == 0)\n\t\t{\n\t\tBIO_printf(bio_err,"connect:errno=%d\\n",get_last_socket_error());\n\t\tSHUTDOWN(s);\n\t\tgoto end;\n\t\t}\n\tBIO_printf(bio_c_out,"CONNECTED(%08X)\\n",s);\n#ifdef FIONBIO\n\tif (c_nbio)\n\t\t{\n\t\tunsigned long l=1;\n\t\tBIO_printf(bio_c_out,"turning on non blocking io\\n");\n\t\tif (BIO_socket_ioctl(s,FIONBIO,&l) < 0)\n\t\t\t{\n\t\t\tERR_print_errors(bio_err);\n\t\t\tgoto end;\n\t\t\t}\n\t\t}\n#endif\n\tif (c_Pause & 0x01) con->debug=1;\n\tsbio=BIO_new_socket(s,BIO_NOCLOSE);\n\tif (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\tif (c_debug)\n\t\t{\n\t\tcon->debug=1;\n\t\tBIO_set_callback(sbio,bio_dump_cb);\n\t\tBIO_set_callback_arg(sbio,bio_c_out);\n\t\t}\n\tSSL_set_bio(con,sbio,sbio);\n\tSSL_set_connect_state(con);\n\twidth=SSL_get_fd(con)+1;\n\tread_tty=1;\n\twrite_tty=0;\n\ttty_on=0;\n\tread_ssl=1;\n\twrite_ssl=1;\n\tcbuf_len=0;\n\tcbuf_off=0;\n\tsbuf_len=0;\n\tsbuf_off=0;\n\tfor (;;)\n\t\t{\n\t\tFD_ZERO(&readfds);\n\t\tFD_ZERO(&writefds);\n\t\tif (SSL_in_init(con) && !SSL_total_renegotiations(con))\n\t\t\t{\n\t\t\tin_init=1;\n\t\t\ttty_on=0;\n\t\t\t}\n\t\telse\n\t\t\t{\n\t\t\ttty_on=1;\n\t\t\tif (in_init)\n\t\t\t\t{\n\t\t\t\tin_init=0;\n\t\t\t\tprint_stuff(bio_c_out,con,full_log);\n\t\t\t\tif (full_log > 0) full_log--;\n\t\t\t\tif (reconnect)\n\t\t\t\t\t{\n\t\t\t\t\treconnect--;\n\t\t\t\t\tBIO_printf(bio_c_out,"drop connection and then reconnect\\n");\n\t\t\t\t\tSSL_shutdown(con);\n\t\t\t\t\tSSL_set_connect_state(con);\n\t\t\t\t\tSHUTDOWN(SSL_get_fd(con));\n\t\t\t\t\tgoto re_start;\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\tssl_pending = read_ssl && SSL_pending(con);\n\t\tif (!ssl_pending)\n\t\t\t{\n#ifndef WINDOWS\n\t\t\tif (tty_on)\n\t\t\t\t{\n\t\t\t\tif (read_tty) FD_SET(fileno(stdin),&readfds);\n\t\t\t\tif (write_tty) FD_SET(fileno(stdout),&writefds);\n\t\t\t\t}\n\t\t\tif (read_ssl)\n\t\t\t\tFD_SET(SSL_get_fd(con),&readfds);\n\t\t\tif (write_ssl)\n\t\t\t\tFD_SET(SSL_get_fd(con),&writefds);\n#else\n\t\t\tif(!tty_on || !write_tty) {\n\t\t\t\tif (read_ssl)\n\t\t\t\t\tFD_SET(SSL_get_fd(con),&readfds);\n\t\t\t\tif (write_ssl)\n\t\t\t\t\tFD_SET(SSL_get_fd(con),&writefds);\n\t\t\t}\n#endif\n#ifdef WINDOWS\n\t\t\ti=0;\n\t\t\tif(!write_tty) {\n\t\t\t\tif(read_tty) {\n\t\t\t\t\ttv.tv_sec = 1;\n\t\t\t\t\ttv.tv_usec = 0;\n\t\t\t\t\ti=select(width,(void *)&readfds,(void *)&writefds,\n\t\t\t\t\t\t NULL,&tv);\n\t\t\t\t\tif(!i && (!((_kbhit()) || (WAIT_OBJECT_0 == WaitForSingleObject(GetStdHandle(STD_INPUT_HANDLE), 0))) || !read_tty) ) continue;\n\t\t\t\t} else \ti=select(width,(void *)&readfds,(void *)&writefds,\n\t\t\t\t\t NULL,NULL);\n\t\t\t}\n#else\n\t\t\ti=select(width,(void *)&readfds,(void *)&writefds,\n\t\t\t\t NULL,NULL);\n#endif\n\t\t\tif ( i < 0)\n\t\t\t\t{\n\t\t\t\tBIO_printf(bio_err,"bad select %d\\n",\n\t\t\t\tget_last_socket_error());\n\t\t\t\tgoto shut;\n\t\t\t\t}\n\t\t\t}\n\t\tif (!ssl_pending && FD_ISSET(SSL_get_fd(con),&writefds))\n\t\t\t{\n\t\t\tk=SSL_write(con,&(cbuf[cbuf_off]),\n\t\t\t\t(unsigned int)cbuf_len);\n\t\t\tswitch (SSL_get_error(con,k))\n\t\t\t\t{\n\t\t\tcase SSL_ERROR_NONE:\n\t\t\t\tcbuf_off+=k;\n\t\t\t\tcbuf_len-=k;\n\t\t\t\tif (k <= 0) goto end;\n\t\t\t\tif (cbuf_len <= 0)\n\t\t\t\t\t{\n\t\t\t\t\tread_tty=1;\n\t\t\t\t\twrite_ssl=0;\n\t\t\t\t\t}\n\t\t\t\telse\n\t\t\t\t\t{\n\t\t\t\t\tread_tty=0;\n\t\t\t\t\twrite_ssl=1;\n\t\t\t\t\t}\n\t\t\t\tbreak;\n\t\t\tcase SSL_ERROR_WANT_WRITE:\n\t\t\t\tBIO_printf(bio_c_out,"write W BLOCK\\n");\n\t\t\t\twrite_ssl=1;\n\t\t\t\tread_tty=0;\n\t\t\t\tbreak;\n\t\t\tcase SSL_ERROR_WANT_READ:\n\t\t\t\tBIO_printf(bio_c_out,"write R BLOCK\\n");\n\t\t\t\twrite_tty=0;\n\t\t\t\tread_ssl=1;\n\t\t\t\twrite_ssl=0;\n\t\t\t\tbreak;\n\t\t\tcase SSL_ERROR_WANT_X509_LOOKUP:\n\t\t\t\tBIO_printf(bio_c_out,"write X BLOCK\\n");\n\t\t\t\tbreak;\n\t\t\tcase SSL_ERROR_ZERO_RETURN:\n\t\t\t\tif (cbuf_len != 0)\n\t\t\t\t\t{\n\t\t\t\t\tBIO_printf(bio_c_out,"shutdown\\n");\n\t\t\t\t\tgoto shut;\n\t\t\t\t\t}\n\t\t\t\telse\n\t\t\t\t\t{\n\t\t\t\t\tread_tty=1;\n\t\t\t\t\twrite_ssl=0;\n\t\t\t\t\tbreak;\n\t\t\t\t\t}\n\t\t\tcase SSL_ERROR_SYSCALL:\n\t\t\t\tif ((k != 0) || (cbuf_len != 0))\n\t\t\t\t\t{\n\t\t\t\t\tBIO_printf(bio_err,"write:errno=%d\\n",\n\t\t\t\t\t\tget_last_socket_error());\n\t\t\t\t\tgoto shut;\n\t\t\t\t\t}\n\t\t\t\telse\n\t\t\t\t\t{\n\t\t\t\t\tread_tty=1;\n\t\t\t\t\twrite_ssl=0;\n\t\t\t\t\t}\n\t\t\t\tbreak;\n\t\t\tcase SSL_ERROR_SSL:\n\t\t\t\tERR_print_errors(bio_err);\n\t\t\t\tgoto shut;\n\t\t\t\t}\n\t\t\t}\n#ifdef WINDOWS\n\t\telse if (!ssl_pending && write_tty)\n#else\n\t\telse if (!ssl_pending && FD_ISSET(fileno(stdout),&writefds))\n#endif\n\t\t\t{\n#ifdef CHARSET_EBCDIC\n\t\t\tascii2ebcdic(&(sbuf[sbuf_off]),&(sbuf[sbuf_off]),sbuf_len);\n#endif\n\t\t\ti=write(fileno(stdout),&(sbuf[sbuf_off]),sbuf_len);\n\t\t\tif (i <= 0)\n\t\t\t\t{\n\t\t\t\tBIO_printf(bio_c_out,"DONE\\n");\n\t\t\t\tgoto shut;\n\t\t\t\t}\n\t\t\tsbuf_len-=i;;\n\t\t\tsbuf_off+=i;\n\t\t\tif (sbuf_len <= 0)\n\t\t\t\t{\n\t\t\t\tread_ssl=1;\n\t\t\t\twrite_tty=0;\n\t\t\t\t}\n\t\t\t}\n\t\telse if (ssl_pending || FD_ISSET(SSL_get_fd(con),&readfds))\n\t\t\t{\n#ifdef RENEG\n{ static int iiii; if (++iiii == 52) { SSL_renegotiate(con); iiii=0; } }\n#endif\n#if 1\n\t\t\tk=SSL_read(con,sbuf,1024 );\n#else\n\t\t\tk=SSL_read(con,sbuf,16);\n{ char zbuf[10240];\nprintf("read=%d pending=%d peek=%d\\n",k,SSL_pending(con),SSL_peek(con,zbuf,10240));\n}\n#endif\n\t\t\tswitch (SSL_get_error(con,k))\n\t\t\t\t{\n\t\t\tcase SSL_ERROR_NONE:\n\t\t\t\tif (k <= 0)\n\t\t\t\t\tgoto end;\n\t\t\t\tsbuf_off=0;\n\t\t\t\tsbuf_len=k;\n\t\t\t\tread_ssl=0;\n\t\t\t\twrite_tty=1;\n\t\t\t\tbreak;\n\t\t\tcase SSL_ERROR_WANT_WRITE:\n\t\t\t\tBIO_printf(bio_c_out,"read W BLOCK\\n");\n\t\t\t\twrite_ssl=1;\n\t\t\t\tread_tty=0;\n\t\t\t\tbreak;\n\t\t\tcase SSL_ERROR_WANT_READ:\n\t\t\t\tBIO_printf(bio_c_out,"read R BLOCK\\n");\n\t\t\t\twrite_tty=0;\n\t\t\t\tread_ssl=1;\n\t\t\t\tif ((read_tty == 0) && (write_ssl == 0))\n\t\t\t\t\twrite_ssl=1;\n\t\t\t\tbreak;\n\t\t\tcase SSL_ERROR_WANT_X509_LOOKUP:\n\t\t\t\tBIO_printf(bio_c_out,"read X BLOCK\\n");\n\t\t\t\tbreak;\n\t\t\tcase SSL_ERROR_SYSCALL:\n\t\t\t\tBIO_printf(bio_err,"read:errno=%d\\n",get_last_socket_error());\n\t\t\t\tgoto shut;\n\t\t\tcase SSL_ERROR_ZERO_RETURN:\n\t\t\t\tBIO_printf(bio_c_out,"closed\\n");\n\t\t\t\tgoto shut;\n\t\t\tcase SSL_ERROR_SSL:\n\t\t\t\tERR_print_errors(bio_err);\n\t\t\t\tgoto shut;\n\t\t\t\t}\n\t\t\t}\n#ifdef WINDOWS\n\t\telse if ((_kbhit()) || (WAIT_OBJECT_0 == WaitForSingleObject(GetStdHandle(STD_INPUT_HANDLE), 0)))\n#else\n\t\telse if (FD_ISSET(fileno(stdin),&readfds))\n#endif\n\t\t\t{\n\t\t\tif (crlf)\n\t\t\t\t{\n\t\t\t\tint j, lf_num;\n\t\t\t\ti=read(fileno(stdin),cbuf,BUFSIZZ/2);\n\t\t\t\tlf_num = 0;\n\t\t\t\tfor (j = 0; j < i; j++)\n\t\t\t\t\tif (cbuf[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\tcbuf[j+lf_num] = cbuf[j];\n\t\t\t\t\tif (cbuf[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\tcbuf[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),cbuf,BUFSIZZ);\n\t\t\tif ((!c_ign_eof) && ((i <= 0) || (cbuf[0] == \'Q\')))\n\t\t\t\t{\n\t\t\t\tBIO_printf(bio_err,"DONE\\n");\n\t\t\t\tgoto shut;\n\t\t\t\t}\n\t\t\tif ((!c_ign_eof) && (cbuf[0] == \'R\'))\n\t\t\t\t{\n\t\t\t\tBIO_printf(bio_err,"RENEGOTIATING\\n");\n\t\t\t\tSSL_renegotiate(con);\n\t\t\t\tcbuf_len=0;\n\t\t\t\t}\n\t\t\telse\n\t\t\t\t{\n\t\t\t\tcbuf_len=i;\n\t\t\t\tcbuf_off=0;\n#ifdef CHARSET_EBCDIC\n\t\t\t\tebcdic2ascii(cbuf, cbuf, i);\n#endif\n\t\t\t\t}\n\t\t\twrite_ssl=1;\n\t\t\tread_tty=0;\n\t\t\t}\n\t\t}\nshut:\n\tSSL_shutdown(con);\n\tSHUTDOWN(SSL_get_fd(con));\n\tret=0;\nend:\n\tif(prexit) print_stuff(bio_c_out,con,1);\n\tif (con != NULL) SSL_free(con);\n\tif (con2 != NULL) SSL_free(con2);\n\tif (ctx != NULL) SSL_CTX_free(ctx);\n\tif (cbuf != NULL) { memset(cbuf,0,BUFSIZZ); OPENSSL_free(cbuf); }\n\tif (sbuf != NULL) { memset(sbuf,0,BUFSIZZ); OPENSSL_free(sbuf); }\n\tif (bio_c_out != NULL)\n\t\t{\n\t\tBIO_free(bio_c_out);\n\t\tbio_c_out=NULL;\n\t\t}\n\tEXIT(ret);\n\t}', 'SSL_CTX *SSL_CTX_new(SSL_METHOD *meth)\n\t{\n\tSSL_CTX *ret=NULL;\n\tif (meth == NULL)\n\t\t{\n\t\tSSLerr(SSL_F_SSL_CTX_NEW,SSL_R_NULL_SSL_METHOD_PASSED);\n\t\treturn(NULL);\n\t\t}\n\tif (SSL_get_ex_data_X509_STORE_CTX_idx() < 0)\n\t\t{\n\t\tSSLerr(SSL_F_SSL_CTX_NEW,SSL_R_X509_VERIFICATION_SETUP_PROBLEMS);\n\t\tgoto err;\n\t\t}\n\tret=(SSL_CTX *)OPENSSL_malloc(sizeof(SSL_CTX));\n\tif (ret == NULL)\n\t\tgoto err;\n\tmemset(ret,0,sizeof(SSL_CTX));\n\tret->method=meth;\n\tret->cert_store=NULL;\n\tret->session_cache_mode=SSL_SESS_CACHE_SERVER;\n\tret->session_cache_size=SSL_SESSION_CACHE_MAX_SIZE_DEFAULT;\n\tret->session_cache_head=NULL;\n\tret->session_cache_tail=NULL;\n\tret->session_timeout=meth->get_timeout();\n\tret->new_session_cb=NULL;\n\tret->remove_session_cb=NULL;\n\tret->get_session_cb=NULL;\n\tmemset((char *)&ret->stats,0,sizeof(ret->stats));\n\tret->references=1;\n\tret->quiet_shutdown=0;\n\tret->info_callback=NULL;\n\tret->app_verify_callback=NULL;\n\tret->app_verify_arg=NULL;\n\tret->read_ahead=0;\n\tret->verify_mode=SSL_VERIFY_NONE;\n\tret->verify_depth=-1;\n\tret->default_verify_callback=NULL;\n\tif ((ret->cert=ssl_cert_new()) == NULL)\n\t\tgoto err;\n\tret->default_passwd_callback=NULL;\n\tret->default_passwd_callback_userdata=NULL;\n\tret->client_cert_cb=NULL;\n\tret->sessions=lh_new(SSL_SESSION_hash,SSL_SESSION_cmp);\n\tif (ret->sessions == NULL) goto err;\n\tret->cert_store=X509_STORE_new();\n\tif (ret->cert_store == NULL) goto err;\n\tssl_create_cipher_list(ret->method,\n\t\t&ret->cipher_list,&ret->cipher_list_by_id,\n\t\tSSL_DEFAULT_CIPHER_LIST);\n\tif (ret->cipher_list == NULL\n\t || sk_SSL_CIPHER_num(ret->cipher_list) <= 0)\n\t\t{\n\t\tSSLerr(SSL_F_SSL_CTX_NEW,SSL_R_LIBRARY_HAS_NO_CIPHERS);\n\t\tgoto err2;\n\t\t}\n\tif ((ret->rsa_md5=EVP_get_digestbyname("ssl2-md5")) == NULL)\n\t\t{\n\t\tSSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL2_MD5_ROUTINES);\n\t\tgoto err2;\n\t\t}\n\tif ((ret->md5=EVP_get_digestbyname("ssl3-md5")) == NULL)\n\t\t{\n\t\tSSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES);\n\t\tgoto err2;\n\t\t}\n\tif ((ret->sha1=EVP_get_digestbyname("ssl3-sha1")) == NULL)\n\t\t{\n\t\tSSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES);\n\t\tgoto err2;\n\t\t}\n\tif ((ret->client_CA=sk_X509_NAME_new_null()) == NULL)\n\t\tgoto err;\n\tCRYPTO_new_ex_data(ssl_ctx_meth,(char *)ret,&ret->ex_data);\n\tret->extra_certs=NULL;\n\tret->comp_methods=SSL_COMP_get_compression_methods();\n\treturn(ret);\nerr:\n\tSSLerr(SSL_F_SSL_CTX_NEW,ERR_R_MALLOC_FAILURE);\nerr2:\n\tif (ret != NULL) SSL_CTX_free(ret);\n\treturn(NULL);\n\t}', 'LHASH *lh_new(unsigned long (*h)(), int (*c)())\n\t{\n\tLHASH *ret;\n\tint i;\n\tif ((ret=(LHASH *)OPENSSL_malloc(sizeof(LHASH))) == NULL)\n\t\tgoto err0;\n\tif ((ret->b=(LHASH_NODE **)OPENSSL_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\tOPENSSL_free(ret);\nerr0:\n\treturn(NULL);\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\ts->read_ahead=ctx->read_ahead;\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#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\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}', '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\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, 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}'] |
17,456 | 0 | https://github.com/openssl/openssl/blob/21e8bbf2904e5ac8709d46424e18f8ba6e813b06/crypto/asn1/t_x509.c/#L414 | int ASN1_GENERALIZEDTIME_print(BIO *bp, 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 ( (v[12] >= '0') && (v[12] <= '9') &&
(v[13] >= '0') && (v[13] <= '9'))
{
s= (v[12]-'0')*10+(v[13]-'0');
if (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_CRL_print(BIO *out, X509_CRL *x)\n{\n\tSTACK_OF(X509_REVOKED) *rev;\n\tX509_REVOKED *r;\n\tlong l;\n\tint i, n;\n\tchar *p;\n\tBIO_printf(out, "Certificate Revocation List (CRL):\\n");\n\tl = X509_CRL_get_version(x);\n\tBIO_printf(out, "%8sVersion %lu (0x%lx)\\n", "", l+1, l);\n\ti = OBJ_obj2nid(x->sig_alg->algorithm);\n\tBIO_printf(out, "%8sSignature Algorithm: %s\\n", "",\n\t\t\t\t (i == NID_undef) ? "NONE" : OBJ_nid2ln(i));\n\tp=X509_NAME_oneline(X509_CRL_get_issuer(x),NULL,0);\n\tBIO_printf(out,"%8sIssuer: %s\\n","",p);\n\tOPENSSL_free(p);\n\tBIO_printf(out,"%8sLast Update: ","");\n\tASN1_TIME_print(out,X509_CRL_get_lastUpdate(x));\n\tBIO_printf(out,"\\n%8sNext Update: ","");\n\tif (X509_CRL_get_nextUpdate(x))\n\t\t ASN1_TIME_print(out,X509_CRL_get_nextUpdate(x));\n\telse BIO_printf(out,"NONE");\n\tBIO_printf(out,"\\n");\n\tn=X509_CRL_get_ext_count(x);\n\tX509V3_extensions_print(out, "CRL extensions",\n\t\t\t\t\t\tx->crl->extensions, 0, 8);\n\trev = X509_CRL_get_REVOKED(x);\n\tif(sk_X509_REVOKED_num(rev) > 0)\n\t BIO_printf(out, "Revoked Certificates:\\n");\n\telse BIO_printf(out, "No Revoked Certificates.\\n");\n\tfor(i = 0; i < sk_X509_REVOKED_num(rev); i++) {\n\t\tr = sk_X509_REVOKED_value(rev, i);\n\t\tBIO_printf(out," Serial Number: ");\n\t\ti2a_ASN1_INTEGER(out,r->serialNumber);\n\t\tBIO_printf(out,"\\n Revocation Date: ");\n\t\tASN1_TIME_print(out,r->revocationDate);\n\t\tBIO_printf(out,"\\n");\n\t\tX509V3_extensions_print(out, "CRL entry extensions",\n\t\t\t\t\t\tr->extensions, 0, 8);\n\t}\n\tX509_signature_print(out, x->sig_alg, x->signature);\n\treturn 1;\n}', 'char *X509_NAME_oneline(X509_NAME *a, char *buf, int len)\n\t{\n\tX509_NAME_ENTRY *ne;\nint i;\n\tint n,lold,l,l1,l2,num,j,type;\n\tconst char *s;\n\tchar *p;\n\tunsigned char *q;\n\tBUF_MEM *b=NULL;\n\tstatic char hex[17]="0123456789ABCDEF";\n\tint gs_doit[4];\n\tchar tmp_buf[80];\n#ifdef CHARSET_EBCDIC\n\tchar ebcdic_buf[1024];\n#endif\n\tif (buf == NULL)\n\t\t{\n\t\tif ((b=BUF_MEM_new()) == NULL) goto err;\n\t\tif (!BUF_MEM_grow(b,200)) goto err;\n\t\tb->data[0]=\'\\0\';\n\t\tlen=200;\n\t\t}\n\tif (a == NULL)\n\t {\n\t if(b)\n\t\t{\n\t\tbuf=b->data;\n\t\tOPENSSL_free(b);\n\t\t}\n\t strncpy(buf,"NO X509_NAME",len);\n\t buf[len-1]=\'\\0\';\n\t return buf;\n\t }\n\tlen--;\n\tl=0;\n\tfor (i=0; i<sk_X509_NAME_ENTRY_num(a->entries); i++)\n\t\t{\n\t\tne=sk_X509_NAME_ENTRY_value(a->entries,i);\n\t\tn=OBJ_obj2nid(ne->object);\n\t\tif ((n == NID_undef) || ((s=OBJ_nid2sn(n)) == NULL))\n\t\t\t{\n\t\t\ti2t_ASN1_OBJECT(tmp_buf,sizeof(tmp_buf),ne->object);\n\t\t\ts=tmp_buf;\n\t\t\t}\n\t\tl1=strlen(s);\n\t\ttype=ne->value->type;\n\t\tnum=ne->value->length;\n\t\tq=ne->value->data;\n#ifdef CHARSET_EBCDIC\n if (type == V_ASN1_GENERALSTRING ||\n\t\t type == V_ASN1_VISIBLESTRING ||\n\t\t type == V_ASN1_PRINTABLESTRING ||\n\t\t type == V_ASN1_TELETEXSTRING ||\n\t\t type == V_ASN1_VISIBLESTRING ||\n\t\t type == V_ASN1_IA5STRING) {\n ascii2ebcdic(ebcdic_buf, q,\n\t\t\t\t (num > sizeof ebcdic_buf)\n\t\t\t\t ? sizeof ebcdic_buf : num);\n q=ebcdic_buf;\n\t\t}\n#endif\n\t\tif ((type == V_ASN1_GENERALSTRING) && ((num%4) == 0))\n\t\t\t{\n\t\t\tgs_doit[0]=gs_doit[1]=gs_doit[2]=gs_doit[3]=0;\n\t\t\tfor (j=0; j<num; j++)\n\t\t\t\tif (q[j] != 0) gs_doit[j&3]=1;\n\t\t\tif (gs_doit[0]|gs_doit[1]|gs_doit[2])\n\t\t\t\tgs_doit[0]=gs_doit[1]=gs_doit[2]=gs_doit[3]=1;\n\t\t\telse\n\t\t\t\t{\n\t\t\t\tgs_doit[0]=gs_doit[1]=gs_doit[2]=0;\n\t\t\t\tgs_doit[3]=1;\n\t\t\t\t}\n\t\t\t}\n\t\telse\n\t\t\tgs_doit[0]=gs_doit[1]=gs_doit[2]=gs_doit[3]=1;\n\t\tfor (l2=j=0; j<num; j++)\n\t\t\t{\n\t\t\tif (!gs_doit[j&3]) continue;\n\t\t\tl2++;\n#ifndef CHARSET_EBCDIC\n\t\t\tif ((q[j] < \' \') || (q[j] > \'~\')) l2+=3;\n#else\n\t\t\tif ((os_toascii[q[j]] < os_toascii[\' \']) ||\n\t\t\t (os_toascii[q[j]] > os_toascii[\'~\'])) l2+=3;\n#endif\n\t\t\t}\n\t\tlold=l;\n\t\tl+=1+l1+1+l2;\n\t\tif (b != NULL)\n\t\t\t{\n\t\t\tif (!BUF_MEM_grow(b,l+1)) goto err;\n\t\t\tp= &(b->data[lold]);\n\t\t\t}\n\t\telse if (l > len)\n\t\t\t{\n\t\t\tbreak;\n\t\t\t}\n\t\telse\n\t\t\tp= &(buf[lold]);\n\t\t*(p++)=\'/\';\n\t\tmemcpy(p,s,(unsigned int)l1); p+=l1;\n\t\t*(p++)=\'=\';\n#ifndef CHARSET_EBCDIC\n\t\tq=ne->value->data;\n#endif\n\t\tfor (j=0; j<num; j++)\n\t\t\t{\n\t\t\tif (!gs_doit[j&3]) continue;\n#ifndef CHARSET_EBCDIC\n\t\t\tn=q[j];\n\t\t\tif ((n < \' \') || (n > \'~\'))\n\t\t\t\t{\n\t\t\t\t*(p++)=\'\\\\\';\n\t\t\t\t*(p++)=\'x\';\n\t\t\t\t*(p++)=hex[(n>>4)&0x0f];\n\t\t\t\t*(p++)=hex[n&0x0f];\n\t\t\t\t}\n\t\t\telse\n\t\t\t\t*(p++)=n;\n#else\n\t\t\tn=os_toascii[q[j]];\n\t\t\tif ((n < os_toascii[\' \']) ||\n\t\t\t (n > os_toascii[\'~\']))\n\t\t\t\t{\n\t\t\t\t*(p++)=\'\\\\\';\n\t\t\t\t*(p++)=\'x\';\n\t\t\t\t*(p++)=hex[(n>>4)&0x0f];\n\t\t\t\t*(p++)=hex[n&0x0f];\n\t\t\t\t}\n\t\t\telse\n\t\t\t\t*(p++)=q[j];\n#endif\n\t\t\t}\n\t\t*p=\'\\0\';\n\t\t}\n\tif (b != NULL)\n\t\t{\n\t\tp=b->data;\n\t\tOPENSSL_free(b);\n\t\t}\n\telse\n\t\tp=buf;\n\tif (i == 0)\n\t\t*p = \'\\0\';\n\treturn(p);\nerr:\n\tX509err(X509_F_X509_NAME_ONELINE,ERR_R_MALLOC_FAILURE);\n\tif (b != NULL) BUF_MEM_free(b);\n\treturn(NULL);\n\t}', 'int i2a_ASN1_INTEGER(BIO *bp, ASN1_INTEGER *a)\n\t{\n\tint i,n=0;\n\tstatic const char *h="0123456789ABCDEF";\n\tchar buf[2];\n\tif (a == NULL) return(0);\n\tif (a->type & V_ASN1_NEG)\n\t\t{\n\t\tif (BIO_write(bp, "-", 1) != 1) goto err;\n\t\tn = 1;\n\t\t}\n\tif (a->length == 0)\n\t\t{\n\t\tif (BIO_write(bp,"00",2) != 2) goto err;\n\t\tn += 2;\n\t\t}\n\telse\n\t\t{\n\t\tfor (i=0; i<a->length; i++)\n\t\t\t{\n\t\t\tif ((i != 0) && (i%35 == 0))\n\t\t\t\t{\n\t\t\t\tif (BIO_write(bp,"\\\\\\n",2) != 2) goto err;\n\t\t\t\tn+=2;\n\t\t\t\t}\n\t\t\tbuf[0]=h[((unsigned char)a->data[i]>>4)&0x0f];\n\t\t\tbuf[1]=h[((unsigned char)a->data[i] )&0x0f];\n\t\t\tif (BIO_write(bp,buf,2) != 2) goto err;\n\t\t\tn+=2;\n\t\t\t}\n\t\t}\n\treturn(n);\nerr:\n\treturn(-1);\n\t}', 'int ASN1_TIME_print(BIO *bp, ASN1_TIME *tm)\n{\n\tif(tm->type == V_ASN1_UTCTIME) return ASN1_UTCTIME_print(bp, tm);\n\tif(tm->type == V_ASN1_GENERALIZEDTIME)\n\t\t\t\treturn ASN1_GENERALIZEDTIME_print(bp, tm);\n\tBIO_write(bp,"Bad time value",14);\n\treturn(0);\n}', 'int ASN1_GENERALIZEDTIME_print(BIO *bp, ASN1_GENERALIZEDTIME *tm)\n\t{\n\tchar *v;\n\tint gmt=0;\n\tint i;\n\tint y=0,M=0,d=0,h=0,m=0,s=0;\n\tchar *f = NULL;\n\tint f_len = 0;\n\ti=tm->length;\n\tv=(char *)tm->data;\n\tif (i < 12) goto err;\n\tif (v[i-1] == \'Z\') gmt=1;\n\tfor (i=0; i<12; i++)\n\t\tif ((v[i] > \'9\') || (v[i] < \'0\')) goto err;\n\ty= (v[0]-\'0\')*1000+(v[1]-\'0\')*100 + (v[2]-\'0\')*10+(v[3]-\'0\');\n\tM= (v[4]-\'0\')*10+(v[5]-\'0\');\n\tif ((M > 12) || (M < 1)) goto err;\n\td= (v[6]-\'0\')*10+(v[7]-\'0\');\n\th= (v[8]-\'0\')*10+(v[9]-\'0\');\n\tm= (v[10]-\'0\')*10+(v[11]-\'0\');\n\tif (\t(v[12] >= \'0\') && (v[12] <= \'9\') &&\n\t\t(v[13] >= \'0\') && (v[13] <= \'9\'))\n\t\t{\n\t\ts= (v[12]-\'0\')*10+(v[13]-\'0\');\n\t\tif (v[14] == \'.\')\n\t\t\t{\n\t\t\tint l = tm->length;\n\t\t\tf = &v[14];\n\t\t\tf_len = 1;\n\t\t\twhile (14 + f_len < l && f[f_len] >= \'0\' && f[f_len] <= \'9\')\n\t\t\t\t++f_len;\n\t\t\t}\n\t\t}\n\tif (BIO_printf(bp,"%s %2d %02d:%02d:%02d%.*s %d%s",\n\t\tmon[M-1],d,h,m,s,f_len,f,y,(gmt)?" GMT":"") <= 0)\n\t\treturn(0);\n\telse\n\t\treturn(1);\nerr:\n\tBIO_write(bp,"Bad time value",14);\n\treturn(0);\n\t}'] |
17,457 | 0 | https://github.com/libav/libav/blob/67ce33162aa93bee1a5f9e8d6f00060329fa67da/libavcodec/mpegaudiodec.c/#L1922 | static void compute_imdct(MPADecodeContext *s,
GranuleDef *g,
int32_t *sb_samples,
int32_t *mdct_buf)
{
int32_t *ptr, *win, *win1, *buf, *out_ptr, *ptr1;
int32_t out2[12];
int i, j, mdct_long_end, v, sblimit;
ptr = g->sb_hybrid + 576;
ptr1 = g->sb_hybrid + 2 * 18;
while (ptr >= ptr1) {
ptr -= 6;
v = ptr[0] | ptr[1] | ptr[2] | ptr[3] | ptr[4] | ptr[5];
if (v != 0)
break;
}
sblimit = ((ptr - g->sb_hybrid) / 18) + 1;
if (g->block_type == 2) {
if (g->switch_point)
mdct_long_end = 2;
else
mdct_long_end = 0;
} else {
mdct_long_end = sblimit;
}
buf = mdct_buf;
ptr = g->sb_hybrid;
for(j=0;j<mdct_long_end;j++) {
out_ptr = sb_samples + j;
if (g->switch_point && j < 2)
win1 = mdct_win[0];
else
win1 = mdct_win[g->block_type];
win = win1 + ((4 * 36) & -(j & 1));
imdct36(out_ptr, buf, ptr, win);
out_ptr += 18*SBLIMIT;
ptr += 18;
buf += 18;
}
for(j=mdct_long_end;j<sblimit;j++) {
win = mdct_win[2] + ((4 * 36) & -(j & 1));
out_ptr = sb_samples + j;
for(i=0; i<6; i++){
*out_ptr = buf[i];
out_ptr += SBLIMIT;
}
imdct12(out2, ptr + 0);
for(i=0;i<6;i++) {
*out_ptr = MULH(out2[i], win[i]) + buf[i + 6*1];
buf[i + 6*2] = MULH(out2[i + 6], win[i + 6]);
out_ptr += SBLIMIT;
}
imdct12(out2, ptr + 1);
for(i=0;i<6;i++) {
*out_ptr = MULH(out2[i], win[i]) + buf[i + 6*2];
buf[i + 6*0] = MULH(out2[i + 6], win[i + 6]);
out_ptr += SBLIMIT;
}
imdct12(out2, ptr + 2);
for(i=0;i<6;i++) {
buf[i + 6*0] = MULH(out2[i], win[i]) + buf[i + 6*0];
buf[i + 6*1] = MULH(out2[i + 6], win[i + 6]);
buf[i + 6*2] = 0;
}
ptr += 18;
buf += 18;
}
for(j=sblimit;j<SBLIMIT;j++) {
out_ptr = sb_samples + j;
for(i=0;i<18;i++) {
*out_ptr = buf[i];
buf[i] = 0;
out_ptr += SBLIMIT;
}
buf += 18;
}
} | ['static int mp_decode_layer3(MPADecodeContext *s)\n{\n int nb_granules, main_data_begin, private_bits;\n int gr, ch, blocksplit_flag, i, j, k, n, bits_pos;\n GranuleDef granules[2][2], *g;\n int16_t exponents[576];\n if (s->lsf) {\n main_data_begin = get_bits(&s->gb, 8);\n private_bits = get_bits(&s->gb, s->nb_channels);\n nb_granules = 1;\n } else {\n main_data_begin = get_bits(&s->gb, 9);\n if (s->nb_channels == 2)\n private_bits = get_bits(&s->gb, 3);\n else\n private_bits = get_bits(&s->gb, 5);\n nb_granules = 2;\n for(ch=0;ch<s->nb_channels;ch++) {\n granules[ch][0].scfsi = 0;\n granules[ch][1].scfsi = get_bits(&s->gb, 4);\n }\n }\n for(gr=0;gr<nb_granules;gr++) {\n for(ch=0;ch<s->nb_channels;ch++) {\n dprintf(s->avctx, "gr=%d ch=%d: side_info\\n", gr, ch);\n g = &granules[ch][gr];\n g->part2_3_length = get_bits(&s->gb, 12);\n g->big_values = get_bits(&s->gb, 9);\n if(g->big_values > 288){\n av_log(s->avctx, AV_LOG_ERROR, "big_values too big\\n");\n return -1;\n }\n g->global_gain = get_bits(&s->gb, 8);\n if ((s->mode_ext & (MODE_EXT_MS_STEREO | MODE_EXT_I_STEREO)) ==\n MODE_EXT_MS_STEREO)\n g->global_gain -= 2;\n if (s->lsf)\n g->scalefac_compress = get_bits(&s->gb, 9);\n else\n g->scalefac_compress = get_bits(&s->gb, 4);\n blocksplit_flag = get_bits1(&s->gb);\n if (blocksplit_flag) {\n g->block_type = get_bits(&s->gb, 2);\n if (g->block_type == 0){\n av_log(s->avctx, AV_LOG_ERROR, "invalid block type\\n");\n return -1;\n }\n g->switch_point = get_bits1(&s->gb);\n for(i=0;i<2;i++)\n g->table_select[i] = get_bits(&s->gb, 5);\n for(i=0;i<3;i++)\n g->subblock_gain[i] = get_bits(&s->gb, 3);\n ff_init_short_region(s, g);\n } else {\n int region_address1, region_address2;\n g->block_type = 0;\n g->switch_point = 0;\n for(i=0;i<3;i++)\n g->table_select[i] = get_bits(&s->gb, 5);\n region_address1 = get_bits(&s->gb, 4);\n region_address2 = get_bits(&s->gb, 3);\n dprintf(s->avctx, "region1=%d region2=%d\\n",\n region_address1, region_address2);\n ff_init_long_region(s, g, region_address1, region_address2);\n }\n ff_region_offset2size(g);\n ff_compute_band_indexes(s, g);\n g->preflag = 0;\n if (!s->lsf)\n g->preflag = get_bits1(&s->gb);\n g->scalefac_scale = get_bits1(&s->gb);\n g->count1table_select = get_bits1(&s->gb);\n dprintf(s->avctx, "block_type=%d switch_point=%d\\n",\n g->block_type, g->switch_point);\n }\n }\n if (!s->adu_mode) {\n const uint8_t *ptr = s->gb.buffer + (get_bits_count(&s->gb)>>3);\n assert((get_bits_count(&s->gb) & 7) == 0);\n dprintf(s->avctx, "seekback: %d\\n", main_data_begin);\n memcpy(s->last_buf + s->last_buf_size, ptr, EXTRABYTES);\n s->in_gb= s->gb;\n init_get_bits(&s->gb, s->last_buf, s->last_buf_size*8);\n skip_bits_long(&s->gb, 8*(s->last_buf_size - main_data_begin));\n }\n for(gr=0;gr<nb_granules;gr++) {\n for(ch=0;ch<s->nb_channels;ch++) {\n g = &granules[ch][gr];\n if(get_bits_count(&s->gb)<0){\n av_log(s->avctx, AV_LOG_ERROR, "mdb:%d, lastbuf:%d skipping granule %d\\n",\n main_data_begin, s->last_buf_size, gr);\n skip_bits_long(&s->gb, g->part2_3_length);\n memset(g->sb_hybrid, 0, sizeof(g->sb_hybrid));\n if(get_bits_count(&s->gb) >= s->gb.size_in_bits && s->in_gb.buffer){\n skip_bits_long(&s->in_gb, get_bits_count(&s->gb) - s->gb.size_in_bits);\n s->gb= s->in_gb;\n s->in_gb.buffer=NULL;\n }\n continue;\n }\n bits_pos = get_bits_count(&s->gb);\n if (!s->lsf) {\n uint8_t *sc;\n int slen, slen1, slen2;\n slen1 = slen_table[0][g->scalefac_compress];\n slen2 = slen_table[1][g->scalefac_compress];\n dprintf(s->avctx, "slen1=%d slen2=%d\\n", slen1, slen2);\n if (g->block_type == 2) {\n n = g->switch_point ? 17 : 18;\n j = 0;\n if(slen1){\n for(i=0;i<n;i++)\n g->scale_factors[j++] = get_bits(&s->gb, slen1);\n }else{\n for(i=0;i<n;i++)\n g->scale_factors[j++] = 0;\n }\n if(slen2){\n for(i=0;i<18;i++)\n g->scale_factors[j++] = get_bits(&s->gb, slen2);\n for(i=0;i<3;i++)\n g->scale_factors[j++] = 0;\n }else{\n for(i=0;i<21;i++)\n g->scale_factors[j++] = 0;\n }\n } else {\n sc = granules[ch][0].scale_factors;\n j = 0;\n for(k=0;k<4;k++) {\n n = (k == 0 ? 6 : 5);\n if ((g->scfsi & (0x8 >> k)) == 0) {\n slen = (k < 2) ? slen1 : slen2;\n if(slen){\n for(i=0;i<n;i++)\n g->scale_factors[j++] = get_bits(&s->gb, slen);\n }else{\n for(i=0;i<n;i++)\n g->scale_factors[j++] = 0;\n }\n } else {\n for(i=0;i<n;i++) {\n g->scale_factors[j] = sc[j];\n j++;\n }\n }\n }\n g->scale_factors[j++] = 0;\n }\n } else {\n int tindex, tindex2, slen[4], sl, sf;\n if (g->block_type == 2) {\n tindex = g->switch_point ? 2 : 1;\n } else {\n tindex = 0;\n }\n sf = g->scalefac_compress;\n if ((s->mode_ext & MODE_EXT_I_STEREO) && ch == 1) {\n sf >>= 1;\n if (sf < 180) {\n lsf_sf_expand(slen, sf, 6, 6, 0);\n tindex2 = 3;\n } else if (sf < 244) {\n lsf_sf_expand(slen, sf - 180, 4, 4, 0);\n tindex2 = 4;\n } else {\n lsf_sf_expand(slen, sf - 244, 3, 0, 0);\n tindex2 = 5;\n }\n } else {\n if (sf < 400) {\n lsf_sf_expand(slen, sf, 5, 4, 4);\n tindex2 = 0;\n } else if (sf < 500) {\n lsf_sf_expand(slen, sf - 400, 5, 4, 0);\n tindex2 = 1;\n } else {\n lsf_sf_expand(slen, sf - 500, 3, 0, 0);\n tindex2 = 2;\n g->preflag = 1;\n }\n }\n j = 0;\n for(k=0;k<4;k++) {\n n = lsf_nsf_table[tindex2][tindex][k];\n sl = slen[k];\n if(sl){\n for(i=0;i<n;i++)\n g->scale_factors[j++] = get_bits(&s->gb, sl);\n }else{\n for(i=0;i<n;i++)\n g->scale_factors[j++] = 0;\n }\n }\n for(;j<40;j++)\n g->scale_factors[j] = 0;\n }\n exponents_from_scale_factors(s, g, exponents);\n huffman_decode(s, g, exponents, bits_pos + g->part2_3_length);\n }\n if (s->nb_channels == 2)\n compute_stereo(s, &granules[0][gr], &granules[1][gr]);\n for(ch=0;ch<s->nb_channels;ch++) {\n g = &granules[ch][gr];\n reorder_block(s, g);\n s->compute_antialias(s, g);\n compute_imdct(s, g, &s->sb_samples[ch][18 * gr][0], s->mdct_buf[ch]);\n }\n }\n if(get_bits_count(&s->gb)<0)\n skip_bits_long(&s->gb, -get_bits_count(&s->gb));\n return nb_granules * 18;\n}', 'static void compute_imdct(MPADecodeContext *s,\n GranuleDef *g,\n int32_t *sb_samples,\n int32_t *mdct_buf)\n{\n int32_t *ptr, *win, *win1, *buf, *out_ptr, *ptr1;\n int32_t out2[12];\n int i, j, mdct_long_end, v, sblimit;\n ptr = g->sb_hybrid + 576;\n ptr1 = g->sb_hybrid + 2 * 18;\n while (ptr >= ptr1) {\n ptr -= 6;\n v = ptr[0] | ptr[1] | ptr[2] | ptr[3] | ptr[4] | ptr[5];\n if (v != 0)\n break;\n }\n sblimit = ((ptr - g->sb_hybrid) / 18) + 1;\n if (g->block_type == 2) {\n if (g->switch_point)\n mdct_long_end = 2;\n else\n mdct_long_end = 0;\n } else {\n mdct_long_end = sblimit;\n }\n buf = mdct_buf;\n ptr = g->sb_hybrid;\n for(j=0;j<mdct_long_end;j++) {\n out_ptr = sb_samples + j;\n if (g->switch_point && j < 2)\n win1 = mdct_win[0];\n else\n win1 = mdct_win[g->block_type];\n win = win1 + ((4 * 36) & -(j & 1));\n imdct36(out_ptr, buf, ptr, win);\n out_ptr += 18*SBLIMIT;\n ptr += 18;\n buf += 18;\n }\n for(j=mdct_long_end;j<sblimit;j++) {\n win = mdct_win[2] + ((4 * 36) & -(j & 1));\n out_ptr = sb_samples + j;\n for(i=0; i<6; i++){\n *out_ptr = buf[i];\n out_ptr += SBLIMIT;\n }\n imdct12(out2, ptr + 0);\n for(i=0;i<6;i++) {\n *out_ptr = MULH(out2[i], win[i]) + buf[i + 6*1];\n buf[i + 6*2] = MULH(out2[i + 6], win[i + 6]);\n out_ptr += SBLIMIT;\n }\n imdct12(out2, ptr + 1);\n for(i=0;i<6;i++) {\n *out_ptr = MULH(out2[i], win[i]) + buf[i + 6*2];\n buf[i + 6*0] = MULH(out2[i + 6], win[i + 6]);\n out_ptr += SBLIMIT;\n }\n imdct12(out2, ptr + 2);\n for(i=0;i<6;i++) {\n buf[i + 6*0] = MULH(out2[i], win[i]) + buf[i + 6*0];\n buf[i + 6*1] = MULH(out2[i + 6], win[i + 6]);\n buf[i + 6*2] = 0;\n }\n ptr += 18;\n buf += 18;\n }\n for(j=sblimit;j<SBLIMIT;j++) {\n out_ptr = sb_samples + j;\n for(i=0;i<18;i++) {\n *out_ptr = buf[i];\n buf[i] = 0;\n out_ptr += SBLIMIT;\n }\n buf += 18;\n }\n}'] |
17,458 | 0 | https://github.com/openssl/openssl/blob/440bce8f813fa661437ce52378c3df38e2fd073b/crypto/err/err.c/#L482 | static unsigned long get_error_values(int inc, int top, const char **file,
int *line, const char **data,
int *flags)
{
int i = 0;
ERR_STATE *es;
unsigned long ret;
es = ERR_get_state();
if (es == NULL)
return 0;
if (inc && top) {
if (file)
*file = "";
if (line)
*line = 0;
if (data)
*data = "";
if (flags)
*flags = 0;
return ERR_R_INTERNAL_ERROR;
}
if (es->bottom == es->top)
return 0;
if (top)
i = es->top;
else
i = (es->bottom + 1) % ERR_NUM_ERRORS;
ret = es->err_buffer[i];
if (inc) {
es->bottom = i;
es->err_buffer[i] = 0;
}
if (file != NULL && line != NULL) {
if (es->err_file[i] == NULL) {
*file = "NA";
*line = 0;
} else {
*file = es->err_file[i];
*line = es->err_line[i];
}
}
if (data == NULL) {
if (inc) {
err_clear_data(es, i);
}
} else {
if (es->err_data[i] == NULL) {
*data = "";
if (flags != NULL)
*flags = 0;
} else {
*data = es->err_data[i];
if (flags != NULL)
*flags = es->err_data_flags[i];
}
}
return ret;
} | ['static unsigned long get_error_values(int inc, int top, const char **file,\n int *line, const char **data,\n int *flags)\n{\n int i = 0;\n ERR_STATE *es;\n unsigned long ret;\n es = ERR_get_state();\n if (es == NULL)\n return 0;\n if (inc && top) {\n if (file)\n *file = "";\n if (line)\n *line = 0;\n if (data)\n *data = "";\n if (flags)\n *flags = 0;\n return ERR_R_INTERNAL_ERROR;\n }\n if (es->bottom == es->top)\n return 0;\n if (top)\n i = es->top;\n else\n i = (es->bottom + 1) % ERR_NUM_ERRORS;\n ret = es->err_buffer[i];\n if (inc) {\n es->bottom = i;\n es->err_buffer[i] = 0;\n }\n if (file != NULL && line != NULL) {\n if (es->err_file[i] == NULL) {\n *file = "NA";\n *line = 0;\n } else {\n *file = es->err_file[i];\n *line = es->err_line[i];\n }\n }\n if (data == NULL) {\n if (inc) {\n err_clear_data(es, i);\n }\n } else {\n if (es->err_data[i] == NULL) {\n *data = "";\n if (flags != NULL)\n *flags = 0;\n } else {\n *data = es->err_data[i];\n if (flags != NULL)\n *flags = es->err_data_flags[i];\n }\n }\n return ret;\n}', 'ERR_STATE *ERR_get_state(void)\n{\n ERR_STATE *state = NULL;\n if (!RUN_ONCE(&err_init, err_do_init))\n return NULL;\n if (!OPENSSL_init_crypto(0, NULL))\n return NULL;\n state = CRYPTO_THREAD_get_local(&err_thread_local);\n if (state == NULL) {\n state = OPENSSL_zalloc(sizeof(*state));\n if (state == NULL)\n return NULL;\n if (!ossl_init_thread_start(OPENSSL_INIT_THREAD_ERR_STATE)\n || !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 }\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 FAILTEST();\n if (ret != NULL)\n memset(ret, 0, num);\n return ret;\n}', 'void *CRYPTO_malloc(size_t num, const char *file, int line)\n{\n void *ret = NULL;\n INCREMENT(malloc_count);\n if (malloc_impl != NULL && malloc_impl != CRYPTO_malloc)\n return malloc_impl(num, file, line);\n if (num == 0)\n return NULL;\n FAILTEST();\n if (allow_customize) {\n allow_customize = 0;\n }\n#ifndef OPENSSL_NO_CRYPTO_MDEBUG\n if (call_malloc_debug) {\n CRYPTO_mem_debug_malloc(NULL, num, 0, file, line);\n ret = malloc(num);\n CRYPTO_mem_debug_malloc(ret, num, 1, file, line);\n } else {\n ret = malloc(num);\n }\n#else\n (void)(file); (void)(line);\n ret = malloc(num);\n#endif\n return ret;\n}', 'int CRYPTO_THREAD_set_local(CRYPTO_THREAD_LOCAL *key, void *val)\n{\n if (pthread_setspecific(*key, val) != 0)\n return 0;\n return 1;\n}'] |
17,459 | 0 | https://github.com/libav/libav/blob/3ec394ea823c2a6e65a6abbdb2041ce1c66964f8/libavcodec/motion_est_template.c/#L632 | static int funny_diamond_search(MpegEncContext * s, int *best, int dmin,
int src_index, int ref_index, int const penalty_factor,
int size, int h, int flags)
{
MotionEstContext * const c= &s->me;
me_cmp_func cmpf, chroma_cmpf;
int dia_size;
LOAD_COMMON
LOAD_COMMON2
int map_generation= c->map_generation;
cmpf= s->dsp.me_cmp[size];
chroma_cmpf= s->dsp.me_cmp[size+1];
for(dia_size=1; dia_size<=4; dia_size++){
int dir;
const int x= best[0];
const int y= best[1];
if(dia_size&(dia_size-1)) continue;
if( x + dia_size > xmax
|| x - dia_size < xmin
|| y + dia_size > ymax
|| y - dia_size < ymin)
continue;
for(dir= 0; dir<dia_size; dir+=2){
int d;
CHECK_MV(x + dir , y + dia_size - dir);
CHECK_MV(x + dia_size - dir, y - dir );
CHECK_MV(x - dir , y - dia_size + dir);
CHECK_MV(x - dia_size + dir, y + dir );
}
if(x!=best[0] || y!=best[1])
dia_size=0;
#if 0
{
int dx, dy, i;
static int stats[8*8];
dx= FFABS(x-best[0]);
dy= FFABS(y-best[1]);
if(dy>dx){
dx^=dy; dy^=dx; dx^=dy;
}
stats[dy*8 + dx] ++;
if(256*256*256*64 % (stats[0]+1)==0){
for(i=0; i<64; i++){
if((i&7)==0) printf("\n");
printf("%8d ", stats[i]);
}
printf("\n");
}
}
#endif
}
return dmin;
} | ['static int funny_diamond_search(MpegEncContext * s, int *best, int dmin,\n int src_index, int ref_index, int const penalty_factor,\n int size, int h, int flags)\n{\n MotionEstContext * const c= &s->me;\n me_cmp_func cmpf, chroma_cmpf;\n int dia_size;\n LOAD_COMMON\n LOAD_COMMON2\n int map_generation= c->map_generation;\n cmpf= s->dsp.me_cmp[size];\n chroma_cmpf= s->dsp.me_cmp[size+1];\n for(dia_size=1; dia_size<=4; dia_size++){\n int dir;\n const int x= best[0];\n const int y= best[1];\n if(dia_size&(dia_size-1)) continue;\n if( x + dia_size > xmax\n || x - dia_size < xmin\n || y + dia_size > ymax\n || y - dia_size < ymin)\n continue;\n for(dir= 0; dir<dia_size; dir+=2){\n int d;\n CHECK_MV(x + dir , y + dia_size - dir);\n CHECK_MV(x + dia_size - dir, y - dir );\n CHECK_MV(x - dir , y - dia_size + dir);\n CHECK_MV(x - dia_size + dir, y + dir );\n }\n if(x!=best[0] || y!=best[1])\n dia_size=0;\n#if 0\n{\nint dx, dy, i;\nstatic int stats[8*8];\ndx= FFABS(x-best[0]);\ndy= FFABS(y-best[1]);\nif(dy>dx){\n dx^=dy; dy^=dx; dx^=dy;\n}\nstats[dy*8 + dx] ++;\nif(256*256*256*64 % (stats[0]+1)==0){\n for(i=0; i<64; i++){\n if((i&7)==0) printf("\\n");\n printf("%8d ", stats[i]);\n }\n printf("\\n");\n}\n}\n#endif\n }\n return dmin;\n}'] |
17,460 | 0 | https://github.com/libav/libav/blob/fd16f567987524a769d5d4f1f69089f000386ac2/libavcodec/alac.c/#L472 | static int alac_decode_frame(AVCodecContext *avctx, void *data,
int *got_frame_ptr, AVPacket *avpkt)
{
const uint8_t *inbuffer = avpkt->data;
int input_buffer_size = avpkt->size;
ALACContext *alac = avctx->priv_data;
int channels;
unsigned int outputsamples;
int hassize;
unsigned int readsamplesize;
int isnotcompressed;
uint8_t interlacing_shift;
uint8_t interlacing_leftweight;
int i, ch, ret;
init_get_bits(&alac->gb, inbuffer, input_buffer_size * 8);
channels = get_bits(&alac->gb, 3) + 1;
if (channels != avctx->channels) {
av_log(avctx, AV_LOG_ERROR, "frame header channel count mismatch\n");
return AVERROR_INVALIDDATA;
}
skip_bits(&alac->gb, 4);
skip_bits(&alac->gb, 12);
hassize = get_bits1(&alac->gb);
alac->extra_bits = get_bits(&alac->gb, 2) << 3;
isnotcompressed = get_bits1(&alac->gb);
if (hassize) {
outputsamples = get_bits_long(&alac->gb, 32);
if(outputsamples > alac->setinfo_max_samples_per_frame){
av_log(avctx, AV_LOG_ERROR, "outputsamples %d > %d\n", outputsamples, alac->setinfo_max_samples_per_frame);
return -1;
}
} else
outputsamples = alac->setinfo_max_samples_per_frame;
if (outputsamples > INT32_MAX) {
av_log(avctx, AV_LOG_ERROR, "unsupported block size: %u\n", outputsamples);
return AVERROR_INVALIDDATA;
}
alac->frame.nb_samples = outputsamples;
if ((ret = avctx->get_buffer(avctx, &alac->frame)) < 0) {
av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
return ret;
}
readsamplesize = alac->setinfo_sample_size - alac->extra_bits + channels - 1;
if (readsamplesize > MIN_CACHE_BITS) {
av_log(avctx, AV_LOG_ERROR, "readsamplesize too big (%d)\n", readsamplesize);
return -1;
}
if (!isnotcompressed) {
int16_t predictor_coef_table[MAX_CHANNELS][32];
int predictor_coef_num[MAX_CHANNELS];
int prediction_type[MAX_CHANNELS];
int prediction_quantitization[MAX_CHANNELS];
int ricemodifier[MAX_CHANNELS];
interlacing_shift = get_bits(&alac->gb, 8);
interlacing_leftweight = get_bits(&alac->gb, 8);
for (ch = 0; ch < channels; ch++) {
prediction_type[ch] = get_bits(&alac->gb, 4);
prediction_quantitization[ch] = get_bits(&alac->gb, 4);
ricemodifier[ch] = get_bits(&alac->gb, 3);
predictor_coef_num[ch] = get_bits(&alac->gb, 5);
for (i = 0; i < predictor_coef_num[ch]; i++)
predictor_coef_table[ch][i] = (int16_t)get_bits(&alac->gb, 16);
}
if (alac->extra_bits) {
for (i = 0; i < outputsamples; i++) {
for (ch = 0; ch < channels; ch++)
alac->extra_bits_buffer[ch][i] = get_bits(&alac->gb, alac->extra_bits);
}
}
for (ch = 0; ch < channels; ch++) {
bastardized_rice_decompress(alac,
alac->predicterror_buffer[ch],
outputsamples,
readsamplesize,
alac->setinfo_rice_initialhistory,
alac->setinfo_rice_kmodifier,
ricemodifier[ch] * alac->setinfo_rice_historymult / 4,
(1 << alac->setinfo_rice_kmodifier) - 1);
if (prediction_type[ch] == 15) {
predictor_decompress_fir_adapt(alac->predicterror_buffer[ch],
alac->predicterror_buffer[ch],
outputsamples, readsamplesize,
NULL, 31, 0);
} else if (prediction_type[ch] > 0) {
av_log(avctx, AV_LOG_WARNING, "unknown prediction type: %i\n",
prediction_type[ch]);
}
predictor_decompress_fir_adapt(alac->predicterror_buffer[ch],
alac->outputsamples_buffer[ch],
outputsamples, readsamplesize,
predictor_coef_table[ch],
predictor_coef_num[ch],
prediction_quantitization[ch]);
}
} else {
for (i = 0; i < outputsamples; i++) {
for (ch = 0; ch < channels; ch++) {
alac->outputsamples_buffer[ch][i] = get_sbits_long(&alac->gb,
alac->setinfo_sample_size);
}
}
alac->extra_bits = 0;
interlacing_shift = 0;
interlacing_leftweight = 0;
}
if (get_bits(&alac->gb, 3) != 7)
av_log(avctx, AV_LOG_ERROR, "Error : Wrong End Of Frame\n");
if (channels == 2 && interlacing_leftweight) {
decorrelate_stereo(alac->outputsamples_buffer, outputsamples,
interlacing_shift, interlacing_leftweight);
}
if (alac->extra_bits) {
append_extra_bits(alac->outputsamples_buffer, alac->extra_bits_buffer,
alac->extra_bits, alac->numchannels, outputsamples);
}
switch(alac->setinfo_sample_size) {
case 16:
if (channels == 2) {
interleave_stereo_16(alac->outputsamples_buffer,
(int16_t *)alac->frame.data[0], outputsamples);
} else {
int16_t *outbuffer = (int16_t *)alac->frame.data[0];
for (i = 0; i < outputsamples; i++) {
outbuffer[i] = alac->outputsamples_buffer[0][i];
}
}
break;
case 24:
if (channels == 2) {
interleave_stereo_24(alac->outputsamples_buffer,
(int32_t *)alac->frame.data[0], outputsamples);
} else {
int32_t *outbuffer = (int32_t *)alac->frame.data[0];
for (i = 0; i < outputsamples; i++)
outbuffer[i] = alac->outputsamples_buffer[0][i] << 8;
}
break;
}
if (input_buffer_size * 8 - get_bits_count(&alac->gb) > 8)
av_log(avctx, AV_LOG_ERROR, "Error : %d bits left\n", input_buffer_size * 8 - get_bits_count(&alac->gb));
*got_frame_ptr = 1;
*(AVFrame *)data = alac->frame;
return input_buffer_size;
} | ['static int alac_decode_frame(AVCodecContext *avctx, void *data,\n int *got_frame_ptr, AVPacket *avpkt)\n{\n const uint8_t *inbuffer = avpkt->data;\n int input_buffer_size = avpkt->size;\n ALACContext *alac = avctx->priv_data;\n int channels;\n unsigned int outputsamples;\n int hassize;\n unsigned int readsamplesize;\n int isnotcompressed;\n uint8_t interlacing_shift;\n uint8_t interlacing_leftweight;\n int i, ch, ret;\n init_get_bits(&alac->gb, inbuffer, input_buffer_size * 8);\n channels = get_bits(&alac->gb, 3) + 1;\n if (channels != avctx->channels) {\n av_log(avctx, AV_LOG_ERROR, "frame header channel count mismatch\\n");\n return AVERROR_INVALIDDATA;\n }\n skip_bits(&alac->gb, 4);\n skip_bits(&alac->gb, 12);\n hassize = get_bits1(&alac->gb);\n alac->extra_bits = get_bits(&alac->gb, 2) << 3;\n isnotcompressed = get_bits1(&alac->gb);\n if (hassize) {\n outputsamples = get_bits_long(&alac->gb, 32);\n if(outputsamples > alac->setinfo_max_samples_per_frame){\n av_log(avctx, AV_LOG_ERROR, "outputsamples %d > %d\\n", outputsamples, alac->setinfo_max_samples_per_frame);\n return -1;\n }\n } else\n outputsamples = alac->setinfo_max_samples_per_frame;\n if (outputsamples > INT32_MAX) {\n av_log(avctx, AV_LOG_ERROR, "unsupported block size: %u\\n", outputsamples);\n return AVERROR_INVALIDDATA;\n }\n alac->frame.nb_samples = outputsamples;\n if ((ret = avctx->get_buffer(avctx, &alac->frame)) < 0) {\n av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\\n");\n return ret;\n }\n readsamplesize = alac->setinfo_sample_size - alac->extra_bits + channels - 1;\n if (readsamplesize > MIN_CACHE_BITS) {\n av_log(avctx, AV_LOG_ERROR, "readsamplesize too big (%d)\\n", readsamplesize);\n return -1;\n }\n if (!isnotcompressed) {\n int16_t predictor_coef_table[MAX_CHANNELS][32];\n int predictor_coef_num[MAX_CHANNELS];\n int prediction_type[MAX_CHANNELS];\n int prediction_quantitization[MAX_CHANNELS];\n int ricemodifier[MAX_CHANNELS];\n interlacing_shift = get_bits(&alac->gb, 8);\n interlacing_leftweight = get_bits(&alac->gb, 8);\n for (ch = 0; ch < channels; ch++) {\n prediction_type[ch] = get_bits(&alac->gb, 4);\n prediction_quantitization[ch] = get_bits(&alac->gb, 4);\n ricemodifier[ch] = get_bits(&alac->gb, 3);\n predictor_coef_num[ch] = get_bits(&alac->gb, 5);\n for (i = 0; i < predictor_coef_num[ch]; i++)\n predictor_coef_table[ch][i] = (int16_t)get_bits(&alac->gb, 16);\n }\n if (alac->extra_bits) {\n for (i = 0; i < outputsamples; i++) {\n for (ch = 0; ch < channels; ch++)\n alac->extra_bits_buffer[ch][i] = get_bits(&alac->gb, alac->extra_bits);\n }\n }\n for (ch = 0; ch < channels; ch++) {\n bastardized_rice_decompress(alac,\n alac->predicterror_buffer[ch],\n outputsamples,\n readsamplesize,\n alac->setinfo_rice_initialhistory,\n alac->setinfo_rice_kmodifier,\n ricemodifier[ch] * alac->setinfo_rice_historymult / 4,\n (1 << alac->setinfo_rice_kmodifier) - 1);\n if (prediction_type[ch] == 15) {\n predictor_decompress_fir_adapt(alac->predicterror_buffer[ch],\n alac->predicterror_buffer[ch],\n outputsamples, readsamplesize,\n 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 predictor_decompress_fir_adapt(alac->predicterror_buffer[ch],\n alac->outputsamples_buffer[ch],\n outputsamples, readsamplesize,\n predictor_coef_table[ch],\n predictor_coef_num[ch],\n prediction_quantitization[ch]);\n }\n } else {\n for (i = 0; i < outputsamples; i++) {\n for (ch = 0; ch < channels; ch++) {\n alac->outputsamples_buffer[ch][i] = get_sbits_long(&alac->gb,\n alac->setinfo_sample_size);\n }\n }\n alac->extra_bits = 0;\n interlacing_shift = 0;\n interlacing_leftweight = 0;\n }\n if (get_bits(&alac->gb, 3) != 7)\n av_log(avctx, AV_LOG_ERROR, "Error : Wrong End Of Frame\\n");\n if (channels == 2 && interlacing_leftweight) {\n decorrelate_stereo(alac->outputsamples_buffer, outputsamples,\n interlacing_shift, interlacing_leftweight);\n }\n if (alac->extra_bits) {\n append_extra_bits(alac->outputsamples_buffer, alac->extra_bits_buffer,\n alac->extra_bits, alac->numchannels, outputsamples);\n }\n switch(alac->setinfo_sample_size) {\n case 16:\n if (channels == 2) {\n interleave_stereo_16(alac->outputsamples_buffer,\n (int16_t *)alac->frame.data[0], outputsamples);\n } else {\n int16_t *outbuffer = (int16_t *)alac->frame.data[0];\n for (i = 0; i < outputsamples; i++) {\n outbuffer[i] = alac->outputsamples_buffer[0][i];\n }\n }\n break;\n case 24:\n if (channels == 2) {\n interleave_stereo_24(alac->outputsamples_buffer,\n (int32_t *)alac->frame.data[0], outputsamples);\n } else {\n int32_t *outbuffer = (int32_t *)alac->frame.data[0];\n for (i = 0; i < outputsamples; i++)\n outbuffer[i] = alac->outputsamples_buffer[0][i] << 8;\n }\n break;\n }\n if (input_buffer_size * 8 - get_bits_count(&alac->gb) > 8)\n av_log(avctx, AV_LOG_ERROR, "Error : %d bits left\\n", input_buffer_size * 8 - get_bits_count(&alac->gb));\n *got_frame_ptr = 1;\n *(AVFrame *)data = alac->frame;\n return input_buffer_size;\n}'] |
17,461 | 0 | https://github.com/openssl/openssl/blob/40a706286febe0279336c96374c607daaa1b1d49/crypto/lhash/lhash.c/#L240 | void *lh_delete(_LHASH *lh, const void *data)
{
unsigned long hash;
LHASH_NODE *nn,**rn;
void *ret;
lh->error=0;
rn=getrn(lh,data,&hash);
if (*rn == NULL)
{
lh->num_no_delete++;
return(NULL);
}
else
{
nn= *rn;
*rn=nn->next;
ret=nn->data;
OPENSSL_free(nn);
lh->num_delete++;
}
lh->num_items--;
if ((lh->num_nodes > MIN_NODES) &&
(lh->down_load >= (lh->num_items*LH_LOAD_MULT/lh->num_nodes)))
contract(lh);
return(ret);
} | ['int ssl3_accept(SSL *s)\n\t{\n\tBUF_MEM *buf;\n\tunsigned long alg_k,Time=(unsigned long)time(NULL);\n\tvoid (*cb)(const SSL *ssl,int type,int val)=NULL;\n\tlong num1;\n\tint ret= -1;\n\tint new_state,state,skip=0;\n\tRAND_add(&Time,sizeof(Time),0);\n\tERR_clear_error();\n\tclear_sys_error();\n\tif (s->info_callback != NULL)\n\t\tcb=s->info_callback;\n\telse if (s->ctx->info_callback != NULL)\n\t\tcb=s->ctx->info_callback;\n\ts->in_handshake++;\n\tif (!SSL_in_init(s) || SSL_in_before(s)) SSL_clear(s);\n\tif (s->cert == NULL)\n\t\t{\n\t\tSSLerr(SSL_F_SSL3_ACCEPT,SSL_R_NO_CERTIFICATE_SET);\n\t\treturn(-1);\n\t\t}\n\tfor (;;)\n\t\t{\n\t\tstate=s->state;\n\t\tswitch (s->state)\n\t\t\t{\n\t\tcase SSL_ST_RENEGOTIATE:\n\t\t\ts->new_session=1;\n\t\tcase SSL_ST_BEFORE:\n\t\tcase SSL_ST_ACCEPT:\n\t\tcase SSL_ST_BEFORE|SSL_ST_ACCEPT:\n\t\tcase SSL_ST_OK|SSL_ST_ACCEPT:\n\t\t\ts->server=1;\n\t\t\tif (cb != NULL) cb(s,SSL_CB_HANDSHAKE_START,1);\n\t\t\tif ((s->version>>8) != 3)\n\t\t\t\t{\n\t\t\t\tSSLerr(SSL_F_SSL3_ACCEPT, ERR_R_INTERNAL_ERROR);\n\t\t\t\treturn -1;\n\t\t\t\t}\n\t\t\ts->type=SSL_ST_ACCEPT;\n\t\t\tif (s->init_buf == NULL)\n\t\t\t\t{\n\t\t\t\tif ((buf=BUF_MEM_new()) == NULL)\n\t\t\t\t\t{\n\t\t\t\t\tret= -1;\n\t\t\t\t\tgoto end;\n\t\t\t\t\t}\n\t\t\t\tif (!BUF_MEM_grow(buf,SSL3_RT_MAX_PLAIN_LENGTH))\n\t\t\t\t\t{\n\t\t\t\t\tret= -1;\n\t\t\t\t\tgoto end;\n\t\t\t\t\t}\n\t\t\t\ts->init_buf=buf;\n\t\t\t\t}\n\t\t\tif (!ssl3_setup_buffers(s))\n\t\t\t\t{\n\t\t\t\tret= -1;\n\t\t\t\tgoto end;\n\t\t\t\t}\n\t\t\ts->init_num=0;\n\t\t\tif (s->state != SSL_ST_RENEGOTIATE)\n\t\t\t\t{\n\t\t\t\tif (!ssl_init_wbio_buffer(s,1)) { ret= -1; goto end; }\n\t\t\t\tssl3_init_finished_mac(s);\n\t\t\t\ts->state=SSL3_ST_SR_CLNT_HELLO_A;\n\t\t\t\ts->ctx->stats.sess_accept++;\n\t\t\t\t}\n\t\t\telse\n\t\t\t\t{\n\t\t\t\ts->ctx->stats.sess_accept_renegotiate++;\n\t\t\t\ts->state=SSL3_ST_SW_HELLO_REQ_A;\n\t\t\t\t}\n\t\t\tbreak;\n\t\tcase SSL3_ST_SW_HELLO_REQ_A:\n\t\tcase SSL3_ST_SW_HELLO_REQ_B:\n\t\t\ts->shutdown=0;\n\t\t\tret=ssl3_send_hello_request(s);\n\t\t\tif (ret <= 0) goto end;\n\t\t\ts->s3->tmp.next_state=SSL3_ST_SW_HELLO_REQ_C;\n\t\t\ts->state=SSL3_ST_SW_FLUSH;\n\t\t\ts->init_num=0;\n\t\t\tssl3_init_finished_mac(s);\n\t\t\tbreak;\n\t\tcase SSL3_ST_SW_HELLO_REQ_C:\n\t\t\ts->state=SSL_ST_OK;\n\t\t\tbreak;\n\t\tcase SSL3_ST_SR_CLNT_HELLO_A:\n\t\tcase SSL3_ST_SR_CLNT_HELLO_B:\n\t\tcase SSL3_ST_SR_CLNT_HELLO_C:\n\t\t\ts->shutdown=0;\n\t\t\tret=ssl3_get_client_hello(s);\n\t\t\tif (ret <= 0) goto end;\n\t\t\ts->new_session = 2;\n\t\t\ts->state=SSL3_ST_SW_SRVR_HELLO_A;\n\t\t\ts->init_num=0;\n\t\t\tbreak;\n\t\tcase SSL3_ST_SW_SRVR_HELLO_A:\n\t\tcase SSL3_ST_SW_SRVR_HELLO_B:\n\t\t\tret=ssl3_send_server_hello(s);\n\t\t\tif (ret <= 0) goto end;\n#ifndef OPENSSL_NO_TLSEXT\n\t\t\tif (s->hit)\n\t\t\t\t{\n\t\t\t\tif (s->tlsext_ticket_expected)\n\t\t\t\t\ts->state=SSL3_ST_SW_SESSION_TICKET_A;\n\t\t\t\telse\n\t\t\t\t\ts->state=SSL3_ST_SW_CHANGE_A;\n\t\t\t\t}\n#else\n\t\t\tif (s->hit)\n\t\t\t\t\ts->state=SSL3_ST_SW_CHANGE_A;\n#endif\n\t\t\telse\n\t\t\t\ts->state=SSL3_ST_SW_CERT_A;\n\t\t\ts->init_num=0;\n\t\t\tbreak;\n\t\tcase SSL3_ST_SW_CERT_A:\n\t\tcase SSL3_ST_SW_CERT_B:\n\t\t\tif (!(s->s3->tmp.new_cipher->algorithm_auth & SSL_aNULL)\n\t\t\t\t&& !(s->s3->tmp.new_cipher->algorithm_mkey & SSL_kPSK)\n\t\t\t\t&& !(s->s3->tmp.new_cipher->algorithm_auth & SSL_aKRB5))\n\t\t\t\t{\n\t\t\t\tret=ssl3_send_server_certificate(s);\n\t\t\t\tif (ret <= 0) goto end;\n#ifndef OPENSSL_NO_TLSEXT\n\t\t\t\tif (s->tlsext_status_expected)\n\t\t\t\t\ts->state=SSL3_ST_SW_CERT_STATUS_A;\n\t\t\t\telse\n\t\t\t\t\ts->state=SSL3_ST_SW_KEY_EXCH_A;\n\t\t\t\t}\n\t\t\telse\n\t\t\t\t{\n\t\t\t\tskip = 1;\n\t\t\t\ts->state=SSL3_ST_SW_KEY_EXCH_A;\n\t\t\t\t}\n#else\n\t\t\t\t}\n\t\t\telse\n\t\t\t\tskip=1;\n\t\t\ts->state=SSL3_ST_SW_KEY_EXCH_A;\n#endif\n\t\t\ts->init_num=0;\n\t\t\tbreak;\n\t\tcase SSL3_ST_SW_KEY_EXCH_A:\n\t\tcase SSL3_ST_SW_KEY_EXCH_B:\n\t\t\talg_k = s->s3->tmp.new_cipher->algorithm_mkey;\n\t\t\tif ((s->options & SSL_OP_EPHEMERAL_RSA)\n#ifndef OPENSSL_NO_KRB5\n\t\t\t\t&& !(alg_k & SSL_kKRB5)\n#endif\n\t\t\t\t)\n\t\t\t\ts->s3->tmp.use_rsa_tmp=1;\n\t\t\telse\n\t\t\t\ts->s3->tmp.use_rsa_tmp=0;\n\t\t\tif (s->s3->tmp.use_rsa_tmp\n#ifndef OPENSSL_NO_PSK\n\t\t\t || ((alg_k & SSL_kPSK) && s->ctx->psk_identity_hint)\n#endif\n\t\t\t || (alg_k & (SSL_kDHr|SSL_kDHd|SSL_kEDH))\n\t\t\t || (alg_k & SSL_kEECDH)\n\t\t\t || ((alg_k & SSL_kRSA)\n\t\t\t\t&& (s->cert->pkeys[SSL_PKEY_RSA_ENC].privatekey == NULL\n\t\t\t\t || (SSL_C_IS_EXPORT(s->s3->tmp.new_cipher)\n\t\t\t\t\t&& EVP_PKEY_size(s->cert->pkeys[SSL_PKEY_RSA_ENC].privatekey)*8 > SSL_C_EXPORT_PKEYLENGTH(s->s3->tmp.new_cipher)\n\t\t\t\t\t)\n\t\t\t\t )\n\t\t\t\t)\n\t\t\t )\n\t\t\t\t{\n\t\t\t\tret=ssl3_send_server_key_exchange(s);\n\t\t\t\tif (ret <= 0) goto end;\n\t\t\t\t}\n\t\t\telse\n\t\t\t\tskip=1;\n\t\t\ts->state=SSL3_ST_SW_CERT_REQ_A;\n\t\t\ts->init_num=0;\n\t\t\tbreak;\n\t\tcase SSL3_ST_SW_CERT_REQ_A:\n\t\tcase SSL3_ST_SW_CERT_REQ_B:\n\t\t\tif (\n\t\t\t\t!(s->verify_mode & SSL_VERIFY_PEER) ||\n\t\t\t\t((s->session->peer != NULL) &&\n\t\t\t\t (s->verify_mode & SSL_VERIFY_CLIENT_ONCE)) ||\n\t\t\t\t((s->s3->tmp.new_cipher->algorithm_auth & SSL_aNULL) &&\n\t\t\t\t !(s->verify_mode & SSL_VERIFY_FAIL_IF_NO_PEER_CERT)) ||\n\t\t\t\t(s->s3->tmp.new_cipher->algorithm_auth & SSL_aKRB5)\n\t\t\t\t|| (s->s3->tmp.new_cipher->algorithm_mkey & SSL_kPSK))\n\t\t\t\t{\n\t\t\t\tskip=1;\n\t\t\t\ts->s3->tmp.cert_request=0;\n\t\t\t\ts->state=SSL3_ST_SW_SRVR_DONE_A;\n\t\t\t\t}\n\t\t\telse\n\t\t\t\t{\n\t\t\t\ts->s3->tmp.cert_request=1;\n\t\t\t\tret=ssl3_send_certificate_request(s);\n\t\t\t\tif (ret <= 0) goto end;\n#ifndef NETSCAPE_HANG_BUG\n\t\t\t\ts->state=SSL3_ST_SW_SRVR_DONE_A;\n#else\n\t\t\t\ts->state=SSL3_ST_SW_FLUSH;\n\t\t\t\ts->s3->tmp.next_state=SSL3_ST_SR_CERT_A;\n#endif\n\t\t\t\ts->init_num=0;\n\t\t\t\t}\n\t\t\tbreak;\n\t\tcase SSL3_ST_SW_SRVR_DONE_A:\n\t\tcase SSL3_ST_SW_SRVR_DONE_B:\n\t\t\tret=ssl3_send_server_done(s);\n\t\t\tif (ret <= 0) goto end;\n\t\t\ts->s3->tmp.next_state=SSL3_ST_SR_CERT_A;\n\t\t\ts->state=SSL3_ST_SW_FLUSH;\n\t\t\ts->init_num=0;\n\t\t\tbreak;\n\t\tcase SSL3_ST_SW_FLUSH:\n\t\t\tnum1=BIO_ctrl(s->wbio,BIO_CTRL_INFO,0,NULL);\n\t\t\tif (num1 > 0)\n\t\t\t\t{\n\t\t\t\ts->rwstate=SSL_WRITING;\n\t\t\t\tnum1=BIO_flush(s->wbio);\n\t\t\t\tif (num1 <= 0) { ret= -1; goto end; }\n\t\t\t\ts->rwstate=SSL_NOTHING;\n\t\t\t\t}\n\t\t\ts->state=s->s3->tmp.next_state;\n\t\t\tbreak;\n\t\tcase SSL3_ST_SR_CERT_A:\n\t\tcase SSL3_ST_SR_CERT_B:\n\t\t\tret = ssl3_check_client_hello(s);\n\t\t\tif (ret <= 0)\n\t\t\t\tgoto end;\n\t\t\tif (ret == 2)\n\t\t\t\ts->state = SSL3_ST_SR_CLNT_HELLO_C;\n\t\t\telse {\n\t\t\t\tif (s->s3->tmp.cert_request)\n\t\t\t\t\t{\n\t\t\t\t\tret=ssl3_get_client_certificate(s);\n\t\t\t\t\tif (ret <= 0) goto end;\n\t\t\t\t\t}\n\t\t\t\ts->init_num=0;\n\t\t\t\ts->state=SSL3_ST_SR_KEY_EXCH_A;\n\t\t\t}\n\t\t\tbreak;\n\t\tcase SSL3_ST_SR_KEY_EXCH_A:\n\t\tcase SSL3_ST_SR_KEY_EXCH_B:\n\t\t\tret=ssl3_get_client_key_exchange(s);\n\t\t\tif (ret <= 0)\n\t\t\t\tgoto end;\n\t\t\tif (ret == 2)\n\t\t\t\t{\n\t\t\t\ts->state=SSL3_ST_SR_FINISHED_A;\n\t\t\t\ts->init_num = 0;\n\t\t\t\t}\n\t\t\telse\n\t\t\t\t{\n\t\t\t\tint offset=0;\n\t\t\t\tint dgst_num;\n\t\t\t\ts->state=SSL3_ST_SR_CERT_VRFY_A;\n\t\t\t\ts->init_num=0;\n\t\t\t\tif (s->s3->handshake_buffer)\n\t\t\t\t\tssl3_digest_cached_records(s);\n\t\t\t\tfor (dgst_num=0; dgst_num<SSL_MAX_DIGEST;dgst_num++)\n\t\t\t\t\tif (s->s3->handshake_dgst[dgst_num])\n\t\t\t\t\t\t{\n\t\t\t\t\t\ts->method->ssl3_enc->cert_verify_mac(s,EVP_MD_CTX_type(s->s3->handshake_dgst[dgst_num]),&(s->s3->tmp.cert_verify_md[offset]));\n\t\t\t\t\t\toffset+=EVP_MD_CTX_size(s->s3->handshake_dgst[dgst_num]);\n\t\t\t\t\t\t}\n\t\t\t\t}\n\t\t\tbreak;\n\t\tcase SSL3_ST_SR_CERT_VRFY_A:\n\t\tcase SSL3_ST_SR_CERT_VRFY_B:\n\t\t\tret=ssl3_get_cert_verify(s);\n\t\t\tif (ret <= 0) goto end;\n\t\t\ts->state=SSL3_ST_SR_FINISHED_A;\n\t\t\ts->init_num=0;\n\t\t\tbreak;\n\t\tcase SSL3_ST_SR_FINISHED_A:\n\t\tcase SSL3_ST_SR_FINISHED_B:\n\t\t\tret=ssl3_get_finished(s,SSL3_ST_SR_FINISHED_A,\n\t\t\t\tSSL3_ST_SR_FINISHED_B);\n\t\t\tif (ret <= 0) goto end;\n#ifndef OPENSSL_NO_TLSEXT\n\t\t\tif (s->tlsext_ticket_expected)\n\t\t\t\ts->state=SSL3_ST_SW_SESSION_TICKET_A;\n\t\t\telse if (s->hit)\n\t\t\t\ts->state=SSL_ST_OK;\n#else\n\t\t\tif (s->hit)\n\t\t\t\ts->state=SSL_ST_OK;\n#endif\n\t\t\telse\n\t\t\t\ts->state=SSL3_ST_SW_CHANGE_A;\n\t\t\ts->init_num=0;\n\t\t\tbreak;\n#ifndef OPENSSL_NO_TLSEXT\n\t\tcase SSL3_ST_SW_SESSION_TICKET_A:\n\t\tcase SSL3_ST_SW_SESSION_TICKET_B:\n\t\t\tret=ssl3_send_newsession_ticket(s);\n\t\t\tif (ret <= 0) goto end;\n\t\t\ts->state=SSL3_ST_SW_CHANGE_A;\n\t\t\ts->init_num=0;\n\t\t\tbreak;\n\t\tcase SSL3_ST_SW_CERT_STATUS_A:\n\t\tcase SSL3_ST_SW_CERT_STATUS_B:\n\t\t\tret=ssl3_send_cert_status(s);\n\t\t\tif (ret <= 0) goto end;\n\t\t\ts->state=SSL3_ST_SW_KEY_EXCH_A;\n\t\t\ts->init_num=0;\n\t\t\tbreak;\n#endif\n\t\tcase SSL3_ST_SW_CHANGE_A:\n\t\tcase SSL3_ST_SW_CHANGE_B:\n\t\t\ts->session->cipher=s->s3->tmp.new_cipher;\n\t\t\tif (!s->method->ssl3_enc->setup_key_block(s))\n\t\t\t\t{ ret= -1; goto end; }\n\t\t\tret=ssl3_send_change_cipher_spec(s,\n\t\t\t\tSSL3_ST_SW_CHANGE_A,SSL3_ST_SW_CHANGE_B);\n\t\t\tif (ret <= 0) goto end;\n\t\t\ts->state=SSL3_ST_SW_FINISHED_A;\n\t\t\ts->init_num=0;\n\t\t\tif (!s->method->ssl3_enc->change_cipher_state(s,\n\t\t\t\tSSL3_CHANGE_CIPHER_SERVER_WRITE))\n\t\t\t\t{\n\t\t\t\tret= -1;\n\t\t\t\tgoto end;\n\t\t\t\t}\n\t\t\tbreak;\n\t\tcase SSL3_ST_SW_FINISHED_A:\n\t\tcase SSL3_ST_SW_FINISHED_B:\n\t\t\tret=ssl3_send_finished(s,\n\t\t\t\tSSL3_ST_SW_FINISHED_A,SSL3_ST_SW_FINISHED_B,\n\t\t\t\ts->method->ssl3_enc->server_finished_label,\n\t\t\t\ts->method->ssl3_enc->server_finished_label_len);\n\t\t\tif (ret <= 0) goto end;\n\t\t\ts->state=SSL3_ST_SW_FLUSH;\n\t\t\tif (s->hit)\n\t\t\t\ts->s3->tmp.next_state=SSL3_ST_SR_FINISHED_A;\n\t\t\telse\n\t\t\t\ts->s3->tmp.next_state=SSL_ST_OK;\n\t\t\ts->init_num=0;\n\t\t\tbreak;\n\t\tcase SSL_ST_OK:\n\t\t\tssl3_cleanup_key_block(s);\n\t\t\tBUF_MEM_free(s->init_buf);\n\t\t\ts->init_buf=NULL;\n\t\t\tssl_free_wbio_buffer(s);\n\t\t\ts->init_num=0;\n\t\t\tif (s->new_session == 2)\n\t\t\t\t{\n\t\t\t\ts->new_session=0;\n\t\t\t\tssl_update_cache(s,SSL_SESS_CACHE_SERVER);\n\t\t\t\ts->ctx->stats.sess_accept_good++;\n\t\t\t\ts->handshake_func=ssl3_accept;\n\t\t\t\tif (cb != NULL) cb(s,SSL_CB_HANDSHAKE_DONE,1);\n\t\t\t\t}\n\t\t\tret = 1;\n\t\t\tgoto end;\n\t\tdefault:\n\t\t\tSSLerr(SSL_F_SSL3_ACCEPT,SSL_R_UNKNOWN_STATE);\n\t\t\tret= -1;\n\t\t\tgoto end;\n\t\t\t}\n\t\tif (!s->s3->tmp.reuse_message && !skip)\n\t\t\t{\n\t\t\tif (s->debug)\n\t\t\t\t{\n\t\t\t\tif ((ret=BIO_flush(s->wbio)) <= 0)\n\t\t\t\t\tgoto end;\n\t\t\t\t}\n\t\t\tif ((cb != NULL) && (s->state != state))\n\t\t\t\t{\n\t\t\t\tnew_state=s->state;\n\t\t\t\ts->state=state;\n\t\t\t\tcb(s,SSL_CB_ACCEPT_LOOP,1);\n\t\t\t\ts->state=new_state;\n\t\t\t\t}\n\t\t\t}\n\t\tskip=0;\n\t\t}\nend:\n\ts->in_handshake--;\n\tif (cb != NULL)\n\t\tcb(s,SSL_CB_ACCEPT_EXIT,ret);\n\treturn(ret);\n\t}', 'int ssl3_get_client_hello(SSL *s)\n\t{\n\tint i,j,ok,al,ret= -1;\n\tunsigned int cookie_len;\n\tlong n;\n\tunsigned long id;\n\tunsigned char *p,*d,*q;\n\tSSL_CIPHER *c;\n#ifndef OPENSSL_NO_COMP\n\tSSL_COMP *comp=NULL;\n#endif\n\tSTACK_OF(SSL_CIPHER) *ciphers=NULL;\n\tif (s->state == SSL3_ST_SR_CLNT_HELLO_A)\n\t\t{\n\t\ts->state=SSL3_ST_SR_CLNT_HELLO_B;\n\t\t}\n\ts->first_packet=1;\n\tn=s->method->ssl_get_message(s,\n\t\tSSL3_ST_SR_CLNT_HELLO_B,\n\t\tSSL3_ST_SR_CLNT_HELLO_C,\n\t\tSSL3_MT_CLIENT_HELLO,\n\t\tSSL3_RT_MAX_PLAIN_LENGTH,\n\t\t&ok);\n\tif (!ok) return((int)n);\n\ts->first_packet=0;\n\td=p=(unsigned char *)s->init_msg;\n\ts->client_version=(((int)p[0])<<8)|(int)p[1];\n\tp+=2;\n\tif ((s->version == DTLS1_VERSION && s->client_version > s->version) ||\n\t (s->version != DTLS1_VERSION && s->client_version < s->version))\n\t\t{\n\t\tSSLerr(SSL_F_SSL3_GET_CLIENT_HELLO, SSL_R_WRONG_VERSION_NUMBER);\n\t\tif ((s->client_version>>8) == SSL3_VERSION_MAJOR)\n\t\t\t{\n\t\t\ts->version = s->client_version;\n\t\t\t}\n\t\tal = SSL_AD_PROTOCOL_VERSION;\n\t\tgoto f_err;\n\t\t}\n\tmemcpy(s->s3->client_random,p,SSL3_RANDOM_SIZE);\n\tp+=SSL3_RANDOM_SIZE;\n\tj= *(p++);\n\ts->hit=0;\n\tif ((s->new_session && (s->options & SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION)))\n\t\t{\n\t\tif (!ssl_get_new_session(s,1))\n\t\t\tgoto err;\n\t\t}\n\telse\n\t\t{\n\t\ti=ssl_get_prev_session(s, p, j, d + n);\n\t\tif (i == 1)\n\t\t\t{\n\t\t\ts->hit=1;\n\t\t\t}\n\t\telse if (i == -1)\n\t\t\tgoto err;\n\t\telse\n\t\t\t{\n\t\t\tif (!ssl_get_new_session(s,1))\n\t\t\t\tgoto err;\n\t\t\t}\n\t\t}\n\tp+=j;\n\tif (s->version == DTLS1_VERSION)\n\t\t{\n\t\tcookie_len = *(p++);\n\t\tif ( (SSL_get_options(s) & SSL_OP_COOKIE_EXCHANGE) &&\n\t\t\ts->d1->send_cookie == 0)\n\t\t\t{\n\t\t\tif ( cookie_len != s->d1->cookie_len)\n\t\t\t\t{\n\t\t\t\tal = SSL_AD_HANDSHAKE_FAILURE;\n\t\t\t\tSSLerr(SSL_F_SSL3_GET_CLIENT_HELLO, SSL_R_COOKIE_MISMATCH);\n\t\t\t\tgoto f_err;\n\t\t\t\t}\n\t\t\t}\n\t\tif ( cookie_len > sizeof(s->d1->rcvd_cookie))\n\t\t\t{\n\t\t\tal = SSL_AD_DECODE_ERROR;\n\t\t\tSSLerr(SSL_F_SSL3_GET_CLIENT_HELLO, SSL_R_COOKIE_MISMATCH);\n\t\t\tgoto f_err;\n\t\t\t}\n\t\tif ( (SSL_get_options(s) & SSL_OP_COOKIE_EXCHANGE) &&\n\t\t\tcookie_len > 0)\n\t\t\t{\n\t\t\tmemcpy(s->d1->rcvd_cookie, p, cookie_len);\n\t\t\tif ( s->ctx->app_verify_cookie_cb != NULL)\n\t\t\t\t{\n\t\t\t\tif ( s->ctx->app_verify_cookie_cb(s, s->d1->rcvd_cookie,\n\t\t\t\t\tcookie_len) == 0)\n\t\t\t\t\t{\n\t\t\t\t\tal=SSL_AD_HANDSHAKE_FAILURE;\n\t\t\t\t\tSSLerr(SSL_F_SSL3_GET_CLIENT_HELLO,\n\t\t\t\t\t\tSSL_R_COOKIE_MISMATCH);\n\t\t\t\t\tgoto f_err;\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\telse if ( memcmp(s->d1->rcvd_cookie, s->d1->cookie,\n\t\t\t\t\t\t s->d1->cookie_len) != 0)\n\t\t\t\t{\n\t\t\t\t\tal=SSL_AD_HANDSHAKE_FAILURE;\n\t\t\t\t\tSSLerr(SSL_F_SSL3_GET_CLIENT_HELLO,\n\t\t\t\t\t\tSSL_R_COOKIE_MISMATCH);\n\t\t\t\t\tgoto f_err;\n\t\t\t\t}\n\t\t\t}\n\t\tp += cookie_len;\n\t\t}\n\tn2s(p,i);\n\tif ((i == 0) && (j != 0))\n\t\t{\n\t\tal=SSL_AD_ILLEGAL_PARAMETER;\n\t\tSSLerr(SSL_F_SSL3_GET_CLIENT_HELLO,SSL_R_NO_CIPHERS_SPECIFIED);\n\t\tgoto f_err;\n\t\t}\n\tif ((p+i) >= (d+n))\n\t\t{\n\t\tal=SSL_AD_DECODE_ERROR;\n\t\tSSLerr(SSL_F_SSL3_GET_CLIENT_HELLO,SSL_R_LENGTH_MISMATCH);\n\t\tgoto f_err;\n\t\t}\n\tif ((i > 0) && (ssl_bytes_to_cipher_list(s,p,i,&(ciphers))\n\t\t== NULL))\n\t\t{\n\t\tgoto err;\n\t\t}\n\tp+=i;\n\tif ((s->hit) && (i > 0))\n\t\t{\n\t\tj=0;\n\t\tid=s->session->cipher->id;\n#ifdef CIPHER_DEBUG\n\t\tprintf("client sent %d ciphers\\n",sk_num(ciphers));\n#endif\n\t\tfor (i=0; i<sk_SSL_CIPHER_num(ciphers); i++)\n\t\t\t{\n\t\t\tc=sk_SSL_CIPHER_value(ciphers,i);\n#ifdef CIPHER_DEBUG\n\t\t\tprintf("client [%2d of %2d]:%s\\n",\n\t\t\t\ti,sk_num(ciphers),SSL_CIPHER_get_name(c));\n#endif\n\t\t\tif (c->id == id)\n\t\t\t\t{\n\t\t\t\tj=1;\n\t\t\t\tbreak;\n\t\t\t\t}\n\t\t\t}\n\t\tif (j == 0)\n\t\t\t{\n\t\t\tif ((s->options & SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG) && (sk_SSL_CIPHER_num(ciphers) == 1))\n\t\t\t\t{\n\t\t\t\ts->session->cipher=sk_SSL_CIPHER_value(ciphers, 0);\n\t\t\t\t}\n\t\t\telse\n\t\t\t\t{\n\t\t\t\tal=SSL_AD_ILLEGAL_PARAMETER;\n\t\t\t\tSSLerr(SSL_F_SSL3_GET_CLIENT_HELLO,SSL_R_REQUIRED_CIPHER_MISSING);\n\t\t\t\tgoto f_err;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\ti= *(p++);\n\tif ((p+i) > (d+n))\n\t\t{\n\t\tal=SSL_AD_DECODE_ERROR;\n\t\tSSLerr(SSL_F_SSL3_GET_CLIENT_HELLO,SSL_R_LENGTH_MISMATCH);\n\t\tgoto f_err;\n\t\t}\n\tq=p;\n\tfor (j=0; j<i; j++)\n\t\t{\n\t\tif (p[j] == 0) break;\n\t\t}\n\tp+=i;\n\tif (j >= i)\n\t\t{\n\t\tal=SSL_AD_DECODE_ERROR;\n\t\tSSLerr(SSL_F_SSL3_GET_CLIENT_HELLO,SSL_R_NO_COMPRESSION_SPECIFIED);\n\t\tgoto f_err;\n\t\t}\n#ifndef OPENSSL_NO_TLSEXT\n\tif (s->version > SSL3_VERSION)\n\t\t{\n\t\tif (!ssl_parse_clienthello_tlsext(s,&p,d,n, &al))\n\t\t\t{\n\t\t\tSSLerr(SSL_F_SSL3_GET_CLIENT_HELLO,SSL_R_PARSE_TLSEXT);\n\t\t\tgoto f_err;\n\t\t\t}\n\t\t}\n\t\tif (ssl_check_clienthello_tlsext(s) <= 0) {\n\t\t\tSSLerr(SSL_F_SSL3_GET_CLIENT_HELLO,SSL_R_CLIENTHELLO_TLSEXT);\n\t\t\tgoto err;\n\t\t}\n#endif\n\ts->s3->tmp.new_compression=NULL;\n#ifndef OPENSSL_NO_COMP\n\tif (!(s->options & SSL_OP_NO_COMPRESSION) && s->ctx->comp_methods)\n\t\t{\n\t\tint m,nn,o,v,done=0;\n\t\tnn=sk_SSL_COMP_num(s->ctx->comp_methods);\n\t\tfor (m=0; m<nn; m++)\n\t\t\t{\n\t\t\tcomp=sk_SSL_COMP_value(s->ctx->comp_methods,m);\n\t\t\tv=comp->id;\n\t\t\tfor (o=0; o<i; o++)\n\t\t\t\t{\n\t\t\t\tif (v == q[o])\n\t\t\t\t\t{\n\t\t\t\t\tdone=1;\n\t\t\t\t\tbreak;\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\tif (done) break;\n\t\t\t}\n\t\tif (done)\n\t\t\ts->s3->tmp.new_compression=comp;\n\t\telse\n\t\t\tcomp=NULL;\n\t\t}\n#endif\n\tif (!s->hit)\n\t\t{\n#ifdef OPENSSL_NO_COMP\n\t\ts->session->compress_meth=0;\n#else\n\t\ts->session->compress_meth=(comp == NULL)?0:comp->id;\n#endif\n\t\tif (s->session->ciphers != NULL)\n\t\t\tsk_SSL_CIPHER_free(s->session->ciphers);\n\t\ts->session->ciphers=ciphers;\n\t\tif (ciphers == NULL)\n\t\t\t{\n\t\t\tal=SSL_AD_ILLEGAL_PARAMETER;\n\t\t\tSSLerr(SSL_F_SSL3_GET_CLIENT_HELLO,SSL_R_NO_CIPHERS_PASSED);\n\t\t\tgoto f_err;\n\t\t\t}\n\t\tciphers=NULL;\n\t\tc=ssl3_choose_cipher(s,s->session->ciphers,\n\t\t\t\t SSL_get_ciphers(s));\n\t\tif (c == NULL)\n\t\t\t{\n\t\t\tal=SSL_AD_HANDSHAKE_FAILURE;\n\t\t\tSSLerr(SSL_F_SSL3_GET_CLIENT_HELLO,SSL_R_NO_SHARED_CIPHER);\n\t\t\tgoto f_err;\n\t\t\t}\n\t\ts->s3->tmp.new_cipher=c;\n\t\tssl3_digest_cached_records(s);\n\t\t}\n\telse\n\t\t{\n#ifdef REUSE_CIPHER_BUG\n\t\tSTACK_OF(SSL_CIPHER) *sk;\n\t\tSSL_CIPHER *nc=NULL;\n\t\tSSL_CIPHER *ec=NULL;\n\t\tif (s->options & SSL_OP_NETSCAPE_DEMO_CIPHER_CHANGE_BUG)\n\t\t\t{\n\t\t\tsk=s->session->ciphers;\n\t\t\tfor (i=0; i<sk_SSL_CIPHER_num(sk); i++)\n\t\t\t\t{\n\t\t\t\tc=sk_SSL_CIPHER_value(sk,i);\n\t\t\t\tif (c->algorithm_enc & SSL_eNULL)\n\t\t\t\t\tnc=c;\n\t\t\t\tif (SSL_C_IS_EXPORT(c))\n\t\t\t\t\tec=c;\n\t\t\t\t}\n\t\t\tif (nc != NULL)\n\t\t\t\ts->s3->tmp.new_cipher=nc;\n\t\t\telse if (ec != NULL)\n\t\t\t\ts->s3->tmp.new_cipher=ec;\n\t\t\telse\n\t\t\t\ts->s3->tmp.new_cipher=s->session->cipher;\n\t\t\t}\n\t\telse\n#endif\n\t\ts->s3->tmp.new_cipher=s->session->cipher;\n\t\tBIO_free(s->s3->handshake_buffer);\n\t\ts->s3->handshake_buffer = NULL;\n\t\t}\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\tif (ciphers != NULL) sk_SSL_CIPHER_free(ciphers);\n\treturn(ret);\n\t}', 'int ssl_check_clienthello_tlsext(SSL *s)\n\t{\n\tint ret=SSL_TLSEXT_ERR_NOACK;\n\tint al = SSL_AD_UNRECOGNIZED_NAME;\n#ifndef OPENSSL_NO_EC\n#endif\n\tif (s->ctx != NULL && s->ctx->tlsext_servername_callback != 0)\n\t\tret = s->ctx->tlsext_servername_callback(s, &al, s->ctx->tlsext_servername_arg);\n\telse if (s->initial_ctx != NULL && s->initial_ctx->tlsext_servername_callback != 0)\n\t\tret = s->initial_ctx->tlsext_servername_callback(s, &al, s->initial_ctx->tlsext_servername_arg);\n\tif ((s->tlsext_status_type != -1) && s->ctx->tlsext_status_cb)\n\t\t{\n\t\tint r;\n\t\tr = s->ctx->tlsext_status_cb(s, s->ctx->tlsext_status_arg);\n\t\tswitch (r)\n\t\t\t{\n\t\t\tcase SSL_TLSEXT_ERR_NOACK:\n\t\t\t\ts->tlsext_status_expected = 0;\n\t\t\t\tbreak;\n\t\t\tcase SSL_TLSEXT_ERR_OK:\n\t\t\t\tif (s->tlsext_ocsp_resp)\n\t\t\t\t\ts->tlsext_status_expected = 1;\n\t\t\t\telse\n\t\t\t\t\ts->tlsext_status_expected = 0;\n\t\t\t\tbreak;\n\t\t\tcase SSL_TLSEXT_ERR_ALERT_FATAL:\n\t\t\t\tret = SSL_TLSEXT_ERR_ALERT_FATAL;\n\t\t\t\tal = SSL_AD_INTERNAL_ERROR;\n\t\t\t\tgoto err;\n\t\t\t}\n\t\t}\n\telse\n\t\ts->tlsext_status_expected = 0;\n#ifdef TLSEXT_TYPE_opaque_prf_input\n \t{\n\t\tint r = 1;\n\t\tif (s->ctx->tlsext_opaque_prf_input_callback != 0)\n\t\t\t{\n\t\t\tr = s->ctx->tlsext_opaque_prf_input_callback(s, NULL, 0, s->ctx->tlsext_opaque_prf_input_callback_arg);\n\t\t\tif (!r)\n\t\t\t\t{\n\t\t\t\tret = SSL_TLSEXT_ERR_ALERT_FATAL;\n\t\t\t\tal = SSL_AD_INTERNAL_ERROR;\n\t\t\t\tgoto err;\n\t\t\t\t}\n\t\t\t}\n\t\tif (s->s3->server_opaque_prf_input != NULL)\n\t\t\tOPENSSL_free(s->s3->server_opaque_prf_input);\n\t\ts->s3->server_opaque_prf_input = NULL;\n\t\tif (s->tlsext_opaque_prf_input != NULL)\n\t\t\t{\n\t\t\tif (s->s3->client_opaque_prf_input != NULL &&\n\t\t\t\ts->s3->client_opaque_prf_input_len == s->tlsext_opaque_prf_input_len)\n\t\t\t\t{\n\t\t\t\tif (s->tlsext_opaque_prf_input_len == 0)\n\t\t\t\t\ts->s3->server_opaque_prf_input = OPENSSL_malloc(1);\n\t\t\t\telse\n\t\t\t\t\ts->s3->server_opaque_prf_input = BUF_memdup(s->tlsext_opaque_prf_input, s->tlsext_opaque_prf_input_len);\n\t\t\t\tif (s->s3->server_opaque_prf_input == NULL)\n\t\t\t\t\t{\n\t\t\t\t\tret = SSL_TLSEXT_ERR_ALERT_FATAL;\n\t\t\t\t\tal = SSL_AD_INTERNAL_ERROR;\n\t\t\t\t\tgoto err;\n\t\t\t\t\t}\n\t\t\t\ts->s3->server_opaque_prf_input_len = s->tlsext_opaque_prf_input_len;\n\t\t\t\t}\n\t\t\t}\n\t\tif (r == 2 && s->s3->server_opaque_prf_input == NULL)\n\t\t\t{\n\t\t\tret = SSL_TLSEXT_ERR_ALERT_FATAL;\n\t\t\tal = SSL_AD_HANDSHAKE_FAILURE;\n\t\t\t}\n\t}\n#endif\n err:\n\tswitch (ret)\n\t\t{\n\t\tcase SSL_TLSEXT_ERR_ALERT_FATAL:\n\t\t\tssl3_send_alert(s,SSL3_AL_FATAL,al);\n\t\t\treturn -1;\n\t\tcase SSL_TLSEXT_ERR_ALERT_WARNING:\n\t\t\tssl3_send_alert(s,SSL3_AL_WARNING,al);\n\t\t\treturn 1;\n\t\tcase SSL_TLSEXT_ERR_NOACK:\n\t\t\ts->servername_done=0;\n\t\t\tdefault:\n\t\treturn 1;\n\t\t}\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\ts->method->ssl_dispatch_alert(s);\n\t}', 'int SSL_CTX_remove_session(SSL_CTX *ctx, SSL_SESSION *c)\n{\n\treturn remove_session_lock(ctx, c, 1);\n}', 'static int remove_session_lock(SSL_CTX *ctx, SSL_SESSION *c, int lck)\n\t{\n\tSSL_SESSION *r;\n\tint ret=0;\n\tif ((c != NULL) && (c->session_id_length != 0))\n\t\t{\n\t\tif(lck) CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX);\n\t\tif ((r = lh_SSL_SESSION_retrieve(ctx->sessions,c)) == c)\n\t\t\t{\n\t\t\tret=1;\n\t\t\tr=lh_SSL_SESSION_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}'] |
17,462 | 0 | https://github.com/openssl/openssl/blob/f1c2a9de458b175dd6831cb742b34a7ef8d87aa8/crypto/bio/bss_file.c/#L113 | BIO *BIO_new_file(const char *filename, const char *mode)
{
BIO *ret;
FILE *file;
if ((file=fopen(filename,mode)) == NULL)
{
SYSerr(SYS_F_FOPEN,get_last_sys_error());
ERR_add_error_data(5,"fopen('",filename,"','",mode,"')");
if (errno == ENOENT)
BIOerr(BIO_F_BIO_NEW_FILE,BIO_R_NO_SUCH_FILE);
else
BIOerr(BIO_F_BIO_NEW_FILE,ERR_R_SYS_LIB);
return(NULL);
}
if ((ret=BIO_new(BIO_s_file_internal())) == NULL)
return(NULL);
BIO_set_fp(ret,file,BIO_CLOSE);
return(ret);
} | ['BIO *BIO_new_file(const char *filename, const char *mode)\n\t{\n\tBIO *ret;\n\tFILE *file;\n\tif ((file=fopen(filename,mode)) == NULL)\n\t\t{\n\t\tSYSerr(SYS_F_FOPEN,get_last_sys_error());\n\t\tERR_add_error_data(5,"fopen(\'",filename,"\',\'",mode,"\')");\n\t\tif (errno == ENOENT)\n\t\t\tBIOerr(BIO_F_BIO_NEW_FILE,BIO_R_NO_SUCH_FILE);\n\t\telse\n\t\t\tBIOerr(BIO_F_BIO_NEW_FILE,ERR_R_SYS_LIB);\n\t\treturn(NULL);\n\t\t}\n\tif ((ret=BIO_new(BIO_s_file_internal())) == NULL)\n\t\treturn(NULL);\n\tBIO_set_fp(ret,file,BIO_CLOSE);\n\treturn(ret);\n\t}', 'BIO_METHOD *BIO_s_file(void)\n\t{\n\treturn(&methods_filep);\n\t}', 'BIO *BIO_new(BIO_METHOD *method)\n\t{\n\tBIO *ret=NULL;\n\tret=(BIO *)OPENSSL_malloc(sizeof(BIO));\n\tif (ret == NULL)\n\t\t{\n\t\tBIOerr(BIO_F_BIO_NEW,ERR_R_MALLOC_FAILURE);\n\t\treturn(NULL);\n\t\t}\n\tif (!BIO_set(ret,method))\n\t\t{\n\t\tOPENSSL_free(ret);\n\t\tret=NULL;\n\t\t}\n\treturn(ret);\n\t}', 'void *CRYPTO_malloc(int num, const char *file, int line)\n\t{\n\tvoid *ret = NULL;\n\tallow_customize = 0;\n\tif (malloc_debug_func != NULL)\n\t\t{\n\t\tallow_customize_debug = 0;\n\t\tmalloc_debug_func(NULL, num, file, line, 0);\n\t\t}\n\tret = malloc_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\treturn ret;\n\t}', 'void ERR_put_error(int lib, int func, int reason, const char *file,\n\t int line)\n\t{\n\tERR_STATE *es;\n#ifdef _OSD_POSIX\n\tif (strncmp(file,"*POSIX(", sizeof("*POSIX(")-1) == 0) {\n\t\tchar *end;\n\t\tfile += sizeof("*POSIX(")-1;\n\t\tend = &file[strlen(file)-1];\n\t\tif (*end == \')\')\n\t\t\t*end = \'\\0\';\n\t\tif ((end = strrchr(file, \'/\')) != NULL)\n\t\t\tfile = &end[1];\n\t}\n#endif\n\tes=ERR_get_state();\n\tes->top=(es->top+1)%ERR_NUM_ERRORS;\n\tif (es->top == es->bottom)\n\t\tes->bottom=(es->bottom+1)%ERR_NUM_ERRORS;\n\tes->err_buffer[es->top]=ERR_PACK(lib,func,reason);\n\tes->err_file[es->top]=file;\n\tes->err_line[es->top]=line;\n\terr_clear_data(es,es->top);\n\t}'] |
17,463 | 0 | https://github.com/libav/libav/blob/9104cd5161ec7cb31361f3dabd73a8a813d4f7d0/libavcodec/h264_loopfilter.c/#L150 | static void filter_mb_mbaff_edgev( H264Context *h, uint8_t *pix, int stride, int16_t bS[4], int bsi, int qp ) {
int i;
int index_a = qp + h->slice_alpha_c0_offset;
int alpha = alpha_table[index_a];
int beta = beta_table[qp + h->slice_beta_offset];
for( i = 0; i < 8; i++, pix += stride) {
const int bS_index = (i >> 1) * bsi;
if( bS[bS_index] == 0 ) {
continue;
}
if( bS[bS_index] < 4 ) {
const int tc0 = tc0_table[index_a][bS[bS_index]];
const int p0 = pix[-1];
const int p1 = pix[-2];
const int p2 = pix[-3];
const int q0 = pix[0];
const int q1 = pix[1];
const int q2 = pix[2];
if( FFABS( p0 - q0 ) < alpha &&
FFABS( p1 - p0 ) < beta &&
FFABS( q1 - q0 ) < beta ) {
int tc = tc0;
int i_delta;
if( FFABS( p2 - p0 ) < beta ) {
if(tc0)
pix[-2] = p1 + av_clip( ( p2 + ( ( p0 + q0 + 1 ) >> 1 ) - ( p1 << 1 ) ) >> 1, -tc0, tc0 );
tc++;
}
if( FFABS( q2 - q0 ) < beta ) {
if(tc0)
pix[1] = q1 + av_clip( ( q2 + ( ( p0 + q0 + 1 ) >> 1 ) - ( q1 << 1 ) ) >> 1, -tc0, tc0 );
tc++;
}
i_delta = av_clip( (((q0 - p0 ) << 2) + (p1 - q1) + 4) >> 3, -tc, tc );
pix[-1] = av_clip_uint8( p0 + i_delta );
pix[0] = av_clip_uint8( q0 - i_delta );
tprintf(h->s.avctx, "filter_mb_mbaff_edgev i:%d, qp:%d, indexA:%d, alpha:%d, beta:%d, tc:%d\n# bS:%d -> [%02x, %02x, %02x, %02x, %02x, %02x] =>[%02x, %02x, %02x, %02x]\n", i, qp[qp_index], index_a, alpha, beta, tc, bS[bS_index], pix[-3], p1, p0, q0, q1, pix[2], p1, pix[-1], pix[0], q1);
}
}else{
const int p0 = pix[-1];
const int p1 = pix[-2];
const int p2 = pix[-3];
const int q0 = pix[0];
const int q1 = pix[1];
const int q2 = pix[2];
if( FFABS( p0 - q0 ) < alpha &&
FFABS( p1 - p0 ) < beta &&
FFABS( q1 - q0 ) < beta ) {
if(FFABS( p0 - q0 ) < (( alpha >> 2 ) + 2 )){
if( FFABS( p2 - p0 ) < beta)
{
const int p3 = pix[-4];
pix[-1] = ( p2 + 2*p1 + 2*p0 + 2*q0 + q1 + 4 ) >> 3;
pix[-2] = ( p2 + p1 + p0 + q0 + 2 ) >> 2;
pix[-3] = ( 2*p3 + 3*p2 + p1 + p0 + q0 + 4 ) >> 3;
} else {
pix[-1] = ( 2*p1 + p0 + q1 + 2 ) >> 2;
}
if( FFABS( q2 - q0 ) < beta)
{
const int q3 = pix[3];
pix[0] = ( p1 + 2*p0 + 2*q0 + 2*q1 + q2 + 4 ) >> 3;
pix[1] = ( p0 + q0 + q1 + q2 + 2 ) >> 2;
pix[2] = ( 2*q3 + 3*q2 + q1 + q0 + p0 + 4 ) >> 3;
} else {
pix[0] = ( 2*q1 + q0 + p1 + 2 ) >> 2;
}
}else{
pix[-1] = ( 2*p1 + p0 + q1 + 2 ) >> 2;
pix[ 0] = ( 2*q1 + q0 + p1 + 2 ) >> 2;
}
tprintf(h->s.avctx, "filter_mb_mbaff_edgev i:%d, qp:%d, indexA:%d, alpha:%d, beta:%d\n# bS:4 -> [%02x, %02x, %02x, %02x, %02x, %02x] =>[%02x, %02x, %02x, %02x, %02x, %02x]\n", i, qp[qp_index], index_a, alpha, beta, p2, p1, p0, q0, q1, q2, pix[-3], pix[-2], pix[-1], pix[0], pix[1], pix[2]);
}
}
}
} | ['void ff_h264_filter_mb( H264Context *h, int mb_x, int mb_y, uint8_t *img_y, uint8_t *img_cb, uint8_t *img_cr, unsigned int linesize, unsigned int uvlinesize) {\n MpegEncContext * const s = &h->s;\n const int mb_xy= mb_x + mb_y*s->mb_stride;\n const int mb_type = s->current_picture.mb_type[mb_xy];\n const int mvy_limit = IS_INTERLACED(mb_type) ? 2 : 4;\n int first_vertical_edge_done = 0;\n av_unused int dir;\n int list;\n if (FRAME_MBAFF\n && h->slice_table[mb_xy-1] != 0xFFFF\n && IS_INTERLACED(mb_type^s->current_picture.mb_type[mb_xy-1])\n && (h->deblocking_filter!=2 || h->slice_table[mb_xy-1] == h->slice_num)) {\n const int pair_xy = mb_x + (mb_y&~1)*s->mb_stride;\n const int left_mb_xy[2] = { pair_xy-1, pair_xy-1+s->mb_stride };\n DECLARE_ALIGNED_8(int16_t, bS)[8];\n int qp[2];\n int bqp[2];\n int rqp[2];\n int mb_qp, mbn0_qp, mbn1_qp;\n int i;\n first_vertical_edge_done = 1;\n if( IS_INTRA(mb_type) )\n *(uint64_t*)&bS[0]=\n *(uint64_t*)&bS[4]= 0x0004000400040004ULL;\n else {\n for( i = 0; i < 8; i++ ) {\n int mbn_xy = MB_FIELD ? left_mb_xy[i>>2] : left_mb_xy[i&1];\n if( IS_INTRA( s->current_picture.mb_type[mbn_xy] ) )\n bS[i] = 4;\n else if( h->non_zero_count_cache[12+8*(i>>1)] != 0 ||\n ((!h->pps.cabac && IS_8x8DCT(s->current_picture.mb_type[mbn_xy])) ?\n (h->cbp_table[mbn_xy] & ((MB_FIELD ? (i&2) : (mb_y&1)) ? 8 : 2))\n :\n h->non_zero_count[mbn_xy][7+(MB_FIELD ? (i&3) : (i>>2)+(mb_y&1)*2)*8]))\n bS[i] = 2;\n else\n bS[i] = 1;\n }\n }\n mb_qp = s->current_picture.qscale_table[mb_xy];\n mbn0_qp = s->current_picture.qscale_table[left_mb_xy[0]];\n mbn1_qp = s->current_picture.qscale_table[left_mb_xy[1]];\n qp[0] = ( mb_qp + mbn0_qp + 1 ) >> 1;\n bqp[0] = ( get_chroma_qp( h, 0, mb_qp ) +\n get_chroma_qp( h, 0, mbn0_qp ) + 1 ) >> 1;\n rqp[0] = ( get_chroma_qp( h, 1, mb_qp ) +\n get_chroma_qp( h, 1, mbn0_qp ) + 1 ) >> 1;\n qp[1] = ( mb_qp + mbn1_qp + 1 ) >> 1;\n bqp[1] = ( get_chroma_qp( h, 0, mb_qp ) +\n get_chroma_qp( h, 0, mbn1_qp ) + 1 ) >> 1;\n rqp[1] = ( get_chroma_qp( h, 1, mb_qp ) +\n get_chroma_qp( h, 1, mbn1_qp ) + 1 ) >> 1;\n tprintf(s->avctx, "filter mb:%d/%d MBAFF, QPy:%d/%d, QPb:%d/%d QPr:%d/%d ls:%d uvls:%d", mb_x, mb_y, qp[0], qp[1], bqp[0], bqp[1], rqp[0], rqp[1], linesize, uvlinesize);\n { int i; for (i = 0; i < 8; i++) tprintf(s->avctx, " bS[%d]:%d", i, bS[i]); tprintf(s->avctx, "\\n"); }\n if(MB_FIELD){\n filter_mb_mbaff_edgev ( h, img_y , linesize, bS , 1, qp [0] );\n filter_mb_mbaff_edgev ( h, img_y + 8* linesize, linesize, bS+4, 1, qp [1] );\n filter_mb_mbaff_edgecv( h, img_cb, uvlinesize, bS , 1, bqp[0] );\n filter_mb_mbaff_edgecv( h, img_cb + 4*uvlinesize, uvlinesize, bS+4, 1, bqp[1] );\n filter_mb_mbaff_edgecv( h, img_cr, uvlinesize, bS , 1, rqp[0] );\n filter_mb_mbaff_edgecv( h, img_cr + 4*uvlinesize, uvlinesize, bS+4, 1, rqp[1] );\n }else{\n filter_mb_mbaff_edgev ( h, img_y , 2* linesize, bS , 2, qp [0] );\n filter_mb_mbaff_edgev ( h, img_y + linesize, 2* linesize, bS+1, 2, qp [1] );\n filter_mb_mbaff_edgecv( h, img_cb, 2*uvlinesize, bS , 2, bqp[0] );\n filter_mb_mbaff_edgecv( h, img_cb + uvlinesize, 2*uvlinesize, bS+1, 2, bqp[1] );\n filter_mb_mbaff_edgecv( h, img_cr, 2*uvlinesize, bS , 2, rqp[0] );\n filter_mb_mbaff_edgecv( h, img_cr + uvlinesize, 2*uvlinesize, bS+1, 2, rqp[1] );\n }\n }\n#if CONFIG_SMALL\n for( dir = 0; dir < 2; dir++ )\n filter_mb_dir(h, mb_x, mb_y, img_y, img_cb, img_cr, linesize, uvlinesize, mb_xy, mb_type, mvy_limit, dir ? 0 : first_vertical_edge_done, dir);\n#else\n filter_mb_dir(h, mb_x, mb_y, img_y, img_cb, img_cr, linesize, uvlinesize, mb_xy, mb_type, mvy_limit, first_vertical_edge_done, 0);\n filter_mb_dir(h, mb_x, mb_y, img_y, img_cb, img_cr, linesize, uvlinesize, mb_xy, mb_type, mvy_limit, 0, 1);\n#endif\n}', 'static void filter_mb_mbaff_edgev( H264Context *h, uint8_t *pix, int stride, int16_t bS[4], int bsi, int qp ) {\n int i;\n int index_a = qp + h->slice_alpha_c0_offset;\n int alpha = alpha_table[index_a];\n int beta = beta_table[qp + h->slice_beta_offset];\n for( i = 0; i < 8; i++, pix += stride) {\n const int bS_index = (i >> 1) * bsi;\n if( bS[bS_index] == 0 ) {\n continue;\n }\n if( bS[bS_index] < 4 ) {\n const int tc0 = tc0_table[index_a][bS[bS_index]];\n const int p0 = pix[-1];\n const int p1 = pix[-2];\n const int p2 = pix[-3];\n const int q0 = pix[0];\n const int q1 = pix[1];\n const int q2 = pix[2];\n if( FFABS( p0 - q0 ) < alpha &&\n FFABS( p1 - p0 ) < beta &&\n FFABS( q1 - q0 ) < beta ) {\n int tc = tc0;\n int i_delta;\n if( FFABS( p2 - p0 ) < beta ) {\n if(tc0)\n pix[-2] = p1 + av_clip( ( p2 + ( ( p0 + q0 + 1 ) >> 1 ) - ( p1 << 1 ) ) >> 1, -tc0, tc0 );\n tc++;\n }\n if( FFABS( q2 - q0 ) < beta ) {\n if(tc0)\n pix[1] = q1 + av_clip( ( q2 + ( ( p0 + q0 + 1 ) >> 1 ) - ( q1 << 1 ) ) >> 1, -tc0, tc0 );\n tc++;\n }\n i_delta = av_clip( (((q0 - p0 ) << 2) + (p1 - q1) + 4) >> 3, -tc, tc );\n pix[-1] = av_clip_uint8( p0 + i_delta );\n pix[0] = av_clip_uint8( q0 - i_delta );\n tprintf(h->s.avctx, "filter_mb_mbaff_edgev i:%d, qp:%d, indexA:%d, alpha:%d, beta:%d, tc:%d\\n# bS:%d -> [%02x, %02x, %02x, %02x, %02x, %02x] =>[%02x, %02x, %02x, %02x]\\n", i, qp[qp_index], index_a, alpha, beta, tc, bS[bS_index], pix[-3], p1, p0, q0, q1, pix[2], p1, pix[-1], pix[0], q1);\n }\n }else{\n const int p0 = pix[-1];\n const int p1 = pix[-2];\n const int p2 = pix[-3];\n const int q0 = pix[0];\n const int q1 = pix[1];\n const int q2 = pix[2];\n if( FFABS( p0 - q0 ) < alpha &&\n FFABS( p1 - p0 ) < beta &&\n FFABS( q1 - q0 ) < beta ) {\n if(FFABS( p0 - q0 ) < (( alpha >> 2 ) + 2 )){\n if( FFABS( p2 - p0 ) < beta)\n {\n const int p3 = pix[-4];\n pix[-1] = ( p2 + 2*p1 + 2*p0 + 2*q0 + q1 + 4 ) >> 3;\n pix[-2] = ( p2 + p1 + p0 + q0 + 2 ) >> 2;\n pix[-3] = ( 2*p3 + 3*p2 + p1 + p0 + q0 + 4 ) >> 3;\n } else {\n pix[-1] = ( 2*p1 + p0 + q1 + 2 ) >> 2;\n }\n if( FFABS( q2 - q0 ) < beta)\n {\n const int q3 = pix[3];\n pix[0] = ( p1 + 2*p0 + 2*q0 + 2*q1 + q2 + 4 ) >> 3;\n pix[1] = ( p0 + q0 + q1 + q2 + 2 ) >> 2;\n pix[2] = ( 2*q3 + 3*q2 + q1 + q0 + p0 + 4 ) >> 3;\n } else {\n pix[0] = ( 2*q1 + q0 + p1 + 2 ) >> 2;\n }\n }else{\n pix[-1] = ( 2*p1 + p0 + q1 + 2 ) >> 2;\n pix[ 0] = ( 2*q1 + q0 + p1 + 2 ) >> 2;\n }\n tprintf(h->s.avctx, "filter_mb_mbaff_edgev i:%d, qp:%d, indexA:%d, alpha:%d, beta:%d\\n# bS:4 -> [%02x, %02x, %02x, %02x, %02x, %02x] =>[%02x, %02x, %02x, %02x, %02x, %02x]\\n", i, qp[qp_index], index_a, alpha, beta, p2, p1, p0, q0, q1, q2, pix[-3], pix[-2], pix[-1], pix[0], pix[1], pix[2]);\n }\n }\n }\n}'] |
17,464 | 0 | https://github.com/openssl/openssl/blob/a14715888bc4b5bd2b1da3f8ac7d4cabef8c9cb8/crypto/bn/bn_ctx.c/#L273 | 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;\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 {\n BIGNUM *p = BN_new(), *q = BN_new();\n if (p == NULL || q == NULL) {\n BN_free(p);\n BN_free(q);\n goto err;\n }\n BN_with_flags(p, rsa->p, BN_FLG_CONSTTIME);\n BN_with_flags(q, rsa->q, BN_FLG_CONSTTIME);\n if (rsa->flags & RSA_FLAG_CACHE_PRIVATE) {\n if (!BN_MONT_CTX_set_locked\n (&rsa->_method_mod_p, rsa->lock, p, ctx)\n || !BN_MONT_CTX_set_locked(&rsa->_method_mod_q,\n rsa->lock, q, ctx)) {\n BN_free(p);\n BN_free(q);\n goto err;\n }\n if (ex_primes > 0) {\n BIGNUM *r = BN_new();\n if (r == NULL) {\n BN_free(p);\n BN_free(q);\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(r, pinfo->r, BN_FLG_CONSTTIME);\n if (!BN_MONT_CTX_set_locked(&pinfo->m, rsa->lock, r, ctx)) {\n BN_free(p);\n BN_free(q);\n BN_free(r);\n goto err;\n }\n }\n BN_free(r);\n }\n }\n BN_free(p);\n BN_free(q);\n }\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 goto err;\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 if (rsa->e && rsa->n) {\n if (!rsa->meth->bn_mod_exp(vrfy, r0, rsa->e, rsa->n, ctx,\n rsa->_method_mod_n))\n goto err;\n if (!BN_sub(vrfy, vrfy, I))\n goto err;\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 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}', '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 ret = 0;\n BIGNUM *Ri, *R;\n if (BN_is_zero(mod))\n return 0;\n BN_CTX_start(ctx);\n if ((Ri = BN_CTX_get(ctx)) == NULL)\n goto err;\n R = &(mont->RR);\n if (!BN_copy(&(mont->N), mod))\n goto err;\n mont->N.neg = 0;\n#ifdef MONT_WORD\n {\n BIGNUM tmod;\n BN_ULONG buf[2];\n bn_init(&tmod);\n tmod.d = buf;\n tmod.dmax = 2;\n tmod.neg = 0;\n 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_mod_inverse(Ri, R, &tmod, ctx)) == NULL)\n goto err;\n if (!BN_lshift(Ri, Ri, 2 * BN_BITS2))\n goto err;\n if (!BN_is_zero(Ri)) {\n if (!BN_sub_word(Ri, 1))\n goto err;\n } else {\n if (bn_expand(Ri, (int)sizeof(BN_ULONG) * 2) == NULL)\n goto err;\n Ri->neg = 0;\n Ri->d[0] = BN_MASK2;\n Ri->d[1] = BN_MASK2;\n Ri->top = 2;\n }\n if (!BN_div(Ri, NULL, Ri, &tmod, ctx))\n goto err;\n mont->n0[0] = (Ri->top > 0) ? Ri->d[0] : 0;\n mont->n0[1] = (Ri->top > 1) ? Ri->d[1] : 0;\n# else\n BN_zero(R);\n if (!(BN_set_bit(R, BN_BITS2)))\n goto err;\n buf[0] = mod->d[0];\n buf[1] = 0;\n tmod.top = buf[0] != 0 ? 1 : 0;\n if ((BN_mod_inverse(Ri, R, &tmod, ctx)) == NULL)\n goto err;\n if (!BN_lshift(Ri, Ri, BN_BITS2))\n goto err;\n if (!BN_is_zero(Ri)) {\n if (!BN_sub_word(Ri, 1))\n goto err;\n } else {\n if (!BN_set_word(Ri, BN_MASK2))\n goto err;\n }\n if (!BN_div(Ri, NULL, Ri, &tmod, ctx))\n goto err;\n mont->n0[0] = (Ri->top > 0) ? Ri->d[0] : 0;\n mont->n0[1] = 0;\n# endif\n }\n#else\n {\n mont->ri = BN_num_bits(&mont->N);\n BN_zero(R);\n if (!BN_set_bit(R, mont->ri))\n goto err;\n if ((BN_mod_inverse(Ri, R, &mont->N, ctx)) == NULL)\n goto err;\n if (!BN_lshift(Ri, Ri, mont->ri))\n goto err;\n if (!BN_sub_word(Ri, 1))\n goto err;\n if (!BN_div(&(mont->Ni), NULL, Ri, &mont->N, ctx))\n goto err;\n }\n#endif\n BN_zero(&(mont->RR));\n if (!BN_set_bit(&(mont->RR), mont->ri * 2))\n goto err;\n if (!BN_mod(&(mont->RR), &(mont->RR), &(mont->N), ctx))\n goto err;\n ret = 1;\n err:\n BN_CTX_end(ctx);\n return ret;\n}', 'BIGNUM *BN_mod_inverse(BIGNUM *in,\n const BIGNUM *a, const BIGNUM *n, BN_CTX *ctx)\n{\n BIGNUM *rv;\n int noinv;\n rv = int_bn_mod_inverse(in, a, n, ctx, &noinv);\n if (noinv)\n BNerr(BN_F_BN_MOD_INVERSE, BN_R_NO_INVERSE);\n return rv;\n}', 'BIGNUM *int_bn_mod_inverse(BIGNUM *in,\n const BIGNUM *a, const BIGNUM *n, BN_CTX *ctx,\n int *pnoinv)\n{\n BIGNUM *A, *B, *X, *Y, *M, *D, *T, *R = NULL;\n BIGNUM *ret = NULL;\n int sign;\n if (pnoinv)\n *pnoinv = 0;\n if ((BN_get_flags(a, BN_FLG_CONSTTIME) != 0)\n || (BN_get_flags(n, BN_FLG_CONSTTIME) != 0)) {\n return BN_mod_inverse_no_branch(in, a, n, ctx);\n }\n bn_check_top(a);\n bn_check_top(n);\n BN_CTX_start(ctx);\n A = BN_CTX_get(ctx);\n B = BN_CTX_get(ctx);\n X = BN_CTX_get(ctx);\n D = BN_CTX_get(ctx);\n M = BN_CTX_get(ctx);\n Y = BN_CTX_get(ctx);\n T = BN_CTX_get(ctx);\n if (T == NULL)\n goto err;\n if (in == NULL)\n R = BN_new();\n else\n R = in;\n if (R == NULL)\n goto err;\n BN_one(X);\n BN_zero(Y);\n if (BN_copy(B, a) == NULL)\n goto err;\n if (BN_copy(A, n) == NULL)\n goto err;\n A->neg = 0;\n if (B->neg || (BN_ucmp(B, A) >= 0)) {\n if (!BN_nnmod(B, B, A, ctx))\n goto err;\n }\n sign = -1;\n if (BN_is_odd(n) && (BN_num_bits(n) <= 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 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.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}', '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}'] |
17,465 | 0 | https://github.com/libav/libav/blob/a56fba502e9087c204b7d6cdc8e12d623f77d66d/libavcodec/qtrle.c/#L170 | static void qtrle_decode_8bpp(QtrleContext *s, int row_ptr, int lines_to_change)
{
int rle_code;
int pixel_ptr;
int row_inc = s->frame.linesize[0];
unsigned char pi1, pi2, pi3, pi4;
unsigned char *rgb = s->frame.data[0];
int pixel_limit = s->frame.linesize[0] * s->avctx->height;
while (lines_to_change--) {
pixel_ptr = row_ptr + (4 * (bytestream2_get_byte(&s->g) - 1));
while ((rle_code = (signed char)bytestream2_get_byte(&s->g)) != -1) {
if (rle_code == 0) {
pixel_ptr += (4 * (bytestream2_get_byte(&s->g) - 1));
CHECK_PIXEL_PTR(0);
} else if (rle_code < 0) {
rle_code = -rle_code;
pi1 = bytestream2_get_byte(&s->g);
pi2 = bytestream2_get_byte(&s->g);
pi3 = bytestream2_get_byte(&s->g);
pi4 = bytestream2_get_byte(&s->g);
CHECK_PIXEL_PTR(rle_code * 4);
while (rle_code--) {
rgb[pixel_ptr++] = pi1;
rgb[pixel_ptr++] = pi2;
rgb[pixel_ptr++] = pi3;
rgb[pixel_ptr++] = pi4;
}
} else {
rle_code *= 4;
CHECK_PIXEL_PTR(rle_code);
while (rle_code--) {
rgb[pixel_ptr++] = bytestream2_get_byte(&s->g);
}
}
}
row_ptr += row_inc;
}
} | ['static void qtrle_decode_8bpp(QtrleContext *s, int row_ptr, int lines_to_change)\n{\n int rle_code;\n int pixel_ptr;\n int row_inc = s->frame.linesize[0];\n unsigned char pi1, pi2, pi3, pi4;\n unsigned char *rgb = s->frame.data[0];\n int pixel_limit = s->frame.linesize[0] * s->avctx->height;\n while (lines_to_change--) {\n pixel_ptr = row_ptr + (4 * (bytestream2_get_byte(&s->g) - 1));\n while ((rle_code = (signed char)bytestream2_get_byte(&s->g)) != -1) {\n if (rle_code == 0) {\n pixel_ptr += (4 * (bytestream2_get_byte(&s->g) - 1));\n CHECK_PIXEL_PTR(0);\n } else if (rle_code < 0) {\n rle_code = -rle_code;\n pi1 = bytestream2_get_byte(&s->g);\n pi2 = bytestream2_get_byte(&s->g);\n pi3 = bytestream2_get_byte(&s->g);\n pi4 = bytestream2_get_byte(&s->g);\n CHECK_PIXEL_PTR(rle_code * 4);\n while (rle_code--) {\n rgb[pixel_ptr++] = pi1;\n rgb[pixel_ptr++] = pi2;\n rgb[pixel_ptr++] = pi3;\n rgb[pixel_ptr++] = pi4;\n }\n } else {\n rle_code *= 4;\n CHECK_PIXEL_PTR(rle_code);\n while (rle_code--) {\n rgb[pixel_ptr++] = bytestream2_get_byte(&s->g);\n }\n }\n }\n row_ptr += row_inc;\n }\n}', 'DEF(unsigned int, byte, 1, AV_RB8 , AV_WB8)'] |
17,466 | 0 | https://github.com/openssl/openssl/blob/d40a1b865fddc3d67f8c06ff1f1466fad331c8f7/crypto/bn/bn_shift.c/#L150 | int BN_lshift(BIGNUM *r, const BIGNUM *a, int n)
{
int i,nw,lb,rb;
BN_ULONG *t,*f;
BN_ULONG l;
bn_check_top(r);
bn_check_top(a);
r->neg=a->neg;
nw=n/BN_BITS2;
if (bn_wexpand(r,a->top+nw+1) == NULL) return(0);
lb=n%BN_BITS2;
rb=BN_BITS2-lb;
f=a->d;
t=r->d;
t[a->top+nw]=0;
if (lb == 0)
for (i=a->top-1; i>=0; i--)
t[nw+i]=f[i];
else
for (i=a->top-1; i>=0; i--)
{
l=f[i];
t[nw+i+1]|=(l>>rb)&BN_MASK2;
t[nw+i]=(l<<lb)&BN_MASK2;
}
memset(t,0,nw*sizeof(t[0]));
r->top=a->top+nw+1;
bn_correct_top(r);
bn_check_top(r);
return(1);
} | ['BIGNUM *BN_mod_sqrt(BIGNUM *in, const BIGNUM *a, const BIGNUM *p, BN_CTX *ctx)\n\t{\n\tBIGNUM *ret = in;\n\tint err = 1;\n\tint r;\n\tBIGNUM *A, *b, *q, *t, *x, *y;\n\tint e, i, j;\n\tif (!BN_is_odd(p) || BN_abs_is_word(p, 1))\n\t\t{\n\t\tif (BN_abs_is_word(p, 2))\n\t\t\t{\n\t\t\tif (ret == NULL)\n\t\t\t\tret = BN_new();\n\t\t\tif (ret == NULL)\n\t\t\t\tgoto end;\n\t\t\tif (!BN_set_word(ret, BN_is_bit_set(a, 0)))\n\t\t\t\t{\n\t\t\t\tif (ret != in)\n\t\t\t\t\tBN_free(ret);\n\t\t\t\treturn NULL;\n\t\t\t\t}\n\t\t\tbn_check_top(ret);\n\t\t\treturn ret;\n\t\t\t}\n\t\tBNerr(BN_F_BN_MOD_SQRT, BN_R_P_IS_NOT_PRIME);\n\t\treturn(NULL);\n\t\t}\n\tif (BN_is_zero(a) || BN_is_one(a))\n\t\t{\n\t\tif (ret == NULL)\n\t\t\tret = BN_new();\n\t\tif (ret == NULL)\n\t\t\tgoto end;\n\t\tif (!BN_set_word(ret, BN_is_one(a)))\n\t\t\t{\n\t\t\tif (ret != in)\n\t\t\t\tBN_free(ret);\n\t\t\treturn NULL;\n\t\t\t}\n\t\tbn_check_top(ret);\n\t\treturn ret;\n\t\t}\n\tBN_CTX_start(ctx);\n\tA = BN_CTX_get(ctx);\n\tb = BN_CTX_get(ctx);\n\tq = BN_CTX_get(ctx);\n\tt = BN_CTX_get(ctx);\n\tx = BN_CTX_get(ctx);\n\ty = BN_CTX_get(ctx);\n\tif (y == NULL) goto end;\n\tif (ret == NULL)\n\t\tret = BN_new();\n\tif (ret == NULL) goto end;\n\tif (!BN_nnmod(A, a, p, ctx)) goto end;\n\te = 1;\n\twhile (!BN_is_bit_set(p, e))\n\t\te++;\n\tif (e == 1)\n\t\t{\n\t\tif (!BN_rshift(q, p, 2)) goto end;\n\t\tq->neg = 0;\n\t\tif (!BN_add_word(q, 1)) goto end;\n\t\tif (!BN_mod_exp(ret, A, q, p, ctx)) goto end;\n\t\terr = 0;\n\t\tgoto vrfy;\n\t\t}\n\tif (e == 2)\n\t\t{\n\t\tif (!BN_mod_lshift1_quick(t, A, p)) goto end;\n\t\tif (!BN_rshift(q, p, 3)) goto end;\n\t\tq->neg = 0;\n\t\tif (!BN_mod_exp(b, t, q, p, ctx)) goto end;\n\t\tif (!BN_mod_sqr(y, b, p, ctx)) goto end;\n\t\tif (!BN_mod_mul(t, t, y, p, ctx)) goto end;\n\t\tif (!BN_sub_word(t, 1)) goto end;\n\t\tif (!BN_mod_mul(x, A, b, p, ctx)) goto end;\n\t\tif (!BN_mod_mul(x, x, t, p, ctx)) goto end;\n\t\tif (!BN_copy(ret, x)) goto end;\n\t\terr = 0;\n\t\tgoto vrfy;\n\t\t}\n\tif (!BN_copy(q, p)) goto end;\n\tq->neg = 0;\n\ti = 2;\n\tdo\n\t\t{\n\t\tif (i < 22)\n\t\t\t{\n\t\t\tif (!BN_set_word(y, i)) goto end;\n\t\t\t}\n\t\telse\n\t\t\t{\n\t\t\tif (!BN_pseudo_rand(y, BN_num_bits(p), 0, 0)) goto end;\n\t\t\tif (BN_ucmp(y, p) >= 0)\n\t\t\t\t{\n\t\t\t\tif (!(p->neg ? BN_add : BN_sub)(y, y, p)) goto end;\n\t\t\t\t}\n\t\t\tif (BN_is_zero(y))\n\t\t\t\tif (!BN_set_word(y, i)) goto end;\n\t\t\t}\n\t\tr = BN_kronecker(y, q, ctx);\n\t\tif (r < -1) goto end;\n\t\tif (r == 0)\n\t\t\t{\n\t\t\tBNerr(BN_F_BN_MOD_SQRT, BN_R_P_IS_NOT_PRIME);\n\t\t\tgoto end;\n\t\t\t}\n\t\t}\n\twhile (r == 1 && ++i < 82);\n\tif (r != -1)\n\t\t{\n\t\tBNerr(BN_F_BN_MOD_SQRT, BN_R_TOO_MANY_ITERATIONS);\n\t\tgoto end;\n\t\t}\n\tif (!BN_rshift(q, q, e)) goto end;\n\tif (!BN_mod_exp(y, y, q, p, ctx)) goto end;\n\tif (BN_is_one(y))\n\t\t{\n\t\tBNerr(BN_F_BN_MOD_SQRT, BN_R_P_IS_NOT_PRIME);\n\t\tgoto end;\n\t\t}\n\tif (!BN_rshift1(t, q)) goto end;\n\tif (BN_is_zero(t))\n\t\t{\n\t\tif (!BN_nnmod(t, A, p, ctx)) goto end;\n\t\tif (BN_is_zero(t))\n\t\t\t{\n\t\t\tBN_zero(ret);\n\t\t\terr = 0;\n\t\t\tgoto end;\n\t\t\t}\n\t\telse\n\t\t\tif (!BN_one(x)) goto end;\n\t\t}\n\telse\n\t\t{\n\t\tif (!BN_mod_exp(x, A, t, p, ctx)) goto end;\n\t\tif (BN_is_zero(x))\n\t\t\t{\n\t\t\tBN_zero(ret);\n\t\t\terr = 0;\n\t\t\tgoto end;\n\t\t\t}\n\t\t}\n\tif (!BN_mod_sqr(b, x, p, ctx)) goto end;\n\tif (!BN_mod_mul(b, b, A, p, ctx)) goto end;\n\tif (!BN_mod_mul(x, x, A, p, ctx)) goto end;\n\twhile (1)\n\t\t{\n\t\tif (BN_is_one(b))\n\t\t\t{\n\t\t\tif (!BN_copy(ret, x)) goto end;\n\t\t\terr = 0;\n\t\t\tgoto vrfy;\n\t\t\t}\n\t\ti = 1;\n\t\tif (!BN_mod_sqr(t, b, p, ctx)) goto end;\n\t\twhile (!BN_is_one(t))\n\t\t\t{\n\t\t\ti++;\n\t\t\tif (i == e)\n\t\t\t\t{\n\t\t\t\tBNerr(BN_F_BN_MOD_SQRT, BN_R_NOT_A_SQUARE);\n\t\t\t\tgoto end;\n\t\t\t\t}\n\t\t\tif (!BN_mod_mul(t, t, t, p, ctx)) goto end;\n\t\t\t}\n\t\tif (!BN_copy(t, y)) goto end;\n\t\tfor (j = e - i - 1; j > 0; j--)\n\t\t\t{\n\t\t\tif (!BN_mod_sqr(t, t, p, ctx)) goto end;\n\t\t\t}\n\t\tif (!BN_mod_mul(y, t, t, p, ctx)) goto end;\n\t\tif (!BN_mod_mul(x, x, t, p, ctx)) goto end;\n\t\tif (!BN_mod_mul(b, b, y, p, ctx)) goto end;\n\t\te = i;\n\t\t}\n vrfy:\n\tif (!err)\n\t\t{\n\t\tif (!BN_mod_sqr(x, ret, p, ctx))\n\t\t\terr = 1;\n\t\tif (!err && 0 != BN_cmp(x, A))\n\t\t\t{\n\t\t\tBNerr(BN_F_BN_MOD_SQRT, BN_R_NOT_A_SQUARE);\n\t\t\terr = 1;\n\t\t\t}\n\t\t}\n end:\n\tif (err)\n\t\t{\n\t\tif (ret != NULL && ret != in)\n\t\t\t{\n\t\t\tBN_clear_free(ret);\n\t\t\t}\n\t\tret = NULL;\n\t\t}\n\tBN_CTX_end(ctx);\n\tbn_check_top(ret);\n\treturn ret;\n\t}', 'int BN_nnmod(BIGNUM *r, const BIGNUM *m, const BIGNUM *d, BN_CTX *ctx)\n\t{\n\tif (!(BN_mod(r,m,d,ctx)))\n\t\treturn 0;\n\tif (!r->neg)\n\t\treturn 1;\n\treturn (d->neg ? BN_sub : BN_add)(r, r, d);\n}', 'int BN_div(BIGNUM *dv, BIGNUM *rm, const BIGNUM *num, const BIGNUM *divisor,\n\t BN_CTX *ctx)\n\t{\n\tint norm_shift,i;\n\tsize_t loop;\n\tBIGNUM *tmp,wnum,*snum,*sdiv,*res;\n\tBN_ULONG *resp,*wnump;\n\tBN_ULONG d0,d1;\n\tsize_t 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) goto err;\n\tnorm_shift=BN_BITS2-((BN_num_bits(divisor))%BN_BITS2);\n\tif (!(BN_lshift(sdiv,divisor,norm_shift))) goto err;\n\tsdiv->neg=0;\n\tnorm_shift+=BN_BITS2;\n\tif (!(BN_lshift(snum,num,norm_shift))) goto err;\n\tsnum->neg=0;\n\tdiv_n=sdiv->top;\n\tnum_n=snum->top;\n\tloop=num_n-div_n;\n\twnum.neg = 0;\n\twnum.d = &(snum->d[loop]);\n\twnum.top = div_n;\n\twnum.dmax = snum->dmax - loop;\n\td0=sdiv->d[div_n-1];\n\td1=(div_n == 1)?0:sdiv->d[div_n-2];\n\twnump= &(snum->d[num_n-1]);\n\tres->neg= (num->neg^divisor->neg);\n\tif (!bn_wexpand(res,(loop+1))) goto err;\n\tres->top=loop;\n\tresp= &(res->d[loop-1]);\n\tif (!bn_wexpand(tmp, div_n+1)) goto err;\n\tif (BN_ucmp(&wnum,sdiv) >= 0)\n\t\t{\n\t\tbn_clear_top2max(&wnum);\n\t\tbn_sub_words(wnum.d, wnum.d, sdiv->d, div_n);\n\t\t*resp=1;\n\t\t}\n\telse\n\t\tres->top--;\n\tif (res->top == 0)\n\t\tres->neg = 0;\n\telse\n\t\tresp--;\n\tfor (i=0; i<loop-1; i++, wnump--, resp--)\n\t\t{\n\t\tBN_ULONG q,l0;\n#if defined(BN_DIV3W) && !defined(OPENSSL_NO_ASM)\n\t\tBN_ULONG bn_div_3_words(BN_ULONG*,BN_ULONG,BN_ULONG);\n\t\tq=bn_div_3_words(wnump,d1,d0);\n#else\n\t\tBN_ULONG n0,n1,rem=0;\n\t\tn0=wnump[0];\n\t\tn1=wnump[-1];\n\t\tif (n0 == d0)\n\t\t\tq=BN_MASK2;\n\t\telse\n\t\t\t{\n#ifdef BN_LLONG\n\t\t\tBN_ULLONG t2;\n#if defined(BN_LLONG) && defined(BN_DIV2W) && !defined(bn_div_words)\n\t\t\tq=(BN_ULONG)(((((BN_ULLONG)n0)<<BN_BITS2)|n1)/d0);\n#else\n\t\t\tq=bn_div_words(n0,n1,d0);\n#ifdef BN_DEBUG_LEVITTE\n\t\t\tfprintf(stderr,"DEBUG: bn_div_words(0x%08X,0x%08X,0x%08\\\nX) -> 0x%08X\\n",\n\t\t\t\tn0, n1, d0, q);\n#endif\n#endif\n#ifndef REMAINDER_IS_ALREADY_CALCULATED\n\t\t\trem=(n1-q*d0)&BN_MASK2;\n#endif\n\t\t\tt2=(BN_ULLONG)d1*q;\n\t\t\tfor (;;)\n\t\t\t\t{\n\t\t\t\tif (t2 <= ((((BN_ULLONG)rem)<<BN_BITS2)|wnump[-2]))\n\t\t\t\t\tbreak;\n\t\t\t\tq--;\n\t\t\t\trem += d0;\n\t\t\t\tif (rem < d0) break;\n\t\t\t\tt2 -= d1;\n\t\t\t\t}\n#else\n\t\t\tBN_ULONG t2l,t2h;\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}', 'int BN_is_bit_set(const BIGNUM *a, int n)\n\t{\n\tint i,j;\n\tbn_check_top(a);\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])>>j)&((BN_ULONG)1));\n\t}', 'int BN_rshift(BIGNUM *r, const BIGNUM *a, int n)\n\t{\n\tint i,j,nw,lb,rb;\n\tBN_ULONG *t,*f;\n\tBN_ULONG l,tmp;\n\tbn_check_top(r);\n\tbn_check_top(a);\n\tnw=n/BN_BITS2;\n\trb=n%BN_BITS2;\n\tlb=BN_BITS2-rb;\n\tif (nw >= a->top || a->top == 0)\n\t\t{\n\t\tBN_zero(r);\n\t\treturn(1);\n\t\t}\n\tif (r != a)\n\t\t{\n\t\tr->neg=a->neg;\n\t\tif (bn_wexpand(r,a->top-nw+1) == NULL) return(0);\n\t\t}\n\telse\n\t\t{\n\t\tif (n == 0)\n\t\t\treturn 1;\n\t\t}\n\tf= &(a->d[nw]);\n\tt=r->d;\n\tj=a->top-nw;\n\tr->top=j;\n\tif (rb == 0)\n\t\t{\n\t\tfor (i=j; i != 0; i--)\n\t\t\t*(t++)= *(f++);\n\t\t}\n\telse\n\t\t{\n\t\tl= *(f++);\n\t\tfor (i=j-1; i != 0; i--)\n\t\t\t{\n\t\t\ttmp =(l>>rb)&BN_MASK2;\n\t\t\tl= *(f++);\n\t\t\t*(t++) =(tmp|(l<<lb))&BN_MASK2;\n\t\t\t}\n\t\t*(t++) =(l>>rb)&BN_MASK2;\n\t\t}\n\tbn_correct_top(r);\n\tbn_check_top(r);\n\treturn(1);\n\t}', 'int BN_add_word(BIGNUM *a, BN_ULONG w)\n\t{\n\tBN_ULONG l;\n\tint i;\n\tbn_check_top(a);\n\tw &= BN_MASK2;\n\tif (!w) return 1;\n\tif(BN_is_zero(a)) return BN_set_word(a, w);\n\tif (a->neg)\n\t\t{\n\t\ta->neg=0;\n\t\ti=BN_sub_word(a,w);\n\t\tif (!BN_is_zero(a))\n\t\t\ta->neg=!(a->neg);\n\t\treturn(i);\n\t\t}\n\tif (((BN_ULONG)(a->d[a->top - 1] + 1) == 0) &&\n\t\t\t(bn_wexpand(a,a->top+1) == NULL))\n\t\treturn(0);\n\ti=0;\n\tfor (;;)\n\t\t{\n\t\tif (i >= a->top)\n\t\t\tl=w;\n\t\telse\n\t\t\tl=(a->d[i]+w)&BN_MASK2;\n\t\ta->d[i]=l;\n\t\tif (w > l)\n\t\t\tw=1;\n\t\telse\n\t\t\tbreak;\n\t\ti++;\n\t\t}\n\tif (i >= a->top)\n\t\ta->top++;\n\tbn_check_top(a);\n\treturn(1);\n\t}', 'int BN_mod_exp(BIGNUM *r, const BIGNUM *a, const BIGNUM *p, const BIGNUM *m,\n\t BN_CTX *ctx)\n\t{\n\tint ret;\n\tbn_check_top(a);\n\tbn_check_top(p);\n\tbn_check_top(m);\n#define MONT_MUL_MOD\n#define MONT_EXP_WORD\n#define RECP_MUL_MOD\n#ifdef MONT_MUL_MOD\n\tif (BN_is_odd(m))\n\t\t{\n# ifdef MONT_EXP_WORD\n\t\tif (a->top == 1 && !a->neg && (BN_get_flags(p, BN_FLG_CONSTTIME) == 0))\n\t\t\t{\n\t\t\tBN_ULONG A = a->d[0];\n\t\t\tret=BN_mod_exp_mont_word(r,A,p,m,ctx,NULL);\n\t\t\t}\n\t\telse\n# endif\n\t\t\tret=BN_mod_exp_mont(r,a,p,m,ctx,NULL);\n\t\t}\n\telse\n#endif\n#ifdef RECP_MUL_MOD\n\t\t{ ret=BN_mod_exp_recp(r,a,p,m,ctx); }\n#else\n\t\t{ ret=BN_mod_exp_simple(r,a,p,m,ctx); }\n#endif\n\tbn_check_top(r);\n\treturn(ret);\n\t}', 'int BN_mod_exp_mont(BIGNUM *rr, const BIGNUM *a, const BIGNUM *p,\n\t\t const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *in_mont)\n\t{\n\tint i,j,bits,ret=0,wstart,wend,window,wvalue;\n\tint start=1;\n\tBIGNUM *d,*r;\n\tconst BIGNUM *aa;\n\tBIGNUM *val[TABLE_SIZE];\n\tBN_MONT_CTX *mont=NULL;\n\tif (BN_get_flags(p, BN_FLG_CONSTTIME) != 0)\n\t\t{\n\t\treturn BN_mod_exp_mont_consttime(rr, a, p, m, ctx, in_mont);\n\t\t}\n\tbn_check_top(a);\n\tbn_check_top(p);\n\tbn_check_top(m);\n\tif (!BN_is_odd(m))\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\tbits=BN_num_bits(p);\n\tif (bits == 0)\n\t\t{\n\t\tret = BN_one(rr);\n\t\treturn ret;\n\t\t}\n\tBN_CTX_start(ctx);\n\td = BN_CTX_get(ctx);\n\tr = BN_CTX_get(ctx);\n\tval[0] = BN_CTX_get(ctx);\n\tif (!d || !r || !val[0]) goto err;\n\tif (in_mont != NULL)\n\t\tmont=in_mont;\n\telse\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\tif (a->neg || BN_ucmp(a,m) >= 0)\n\t\t{\n\t\tif (!BN_nnmod(val[0],a,m,ctx))\n\t\t\tgoto err;\n\t\taa= val[0];\n\t\t}\n\telse\n\t\taa=a;\n\tif (BN_is_zero(aa))\n\t\t{\n\t\tBN_zero(rr);\n\t\tret = 1;\n\t\tgoto err;\n\t\t}\n\tif (!BN_to_montgomery(val[0],aa,mont,ctx)) goto err;\n\twindow = BN_window_bits_for_exponent_size(bits);\n\tif (window > 1)\n\t\t{\n\t\tif (!BN_mod_mul_montgomery(d,val[0],val[0],mont,ctx)) goto err;\n\t\tj=1<<(window-1);\n\t\tfor (i=1; i<j; i++)\n\t\t\t{\n\t\t\tif(((val[i] = BN_CTX_get(ctx)) == NULL) ||\n\t\t\t\t\t!BN_mod_mul_montgomery(val[i],val[i-1],\n\t\t\t\t\t\td,mont,ctx))\n\t\t\t\tgoto err;\n\t\t\t}\n\t\t}\n\tstart=1;\n\twvalue=0;\n\twstart=bits-1;\n\twend=0;\n\tif (!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\tif (!BN_from_montgomery(rr,r,mont,ctx)) goto err;\n\tret=1;\nerr:\n\tif ((in_mont == NULL) && (mont != NULL)) BN_MONT_CTX_free(mont);\n\tBN_CTX_end(ctx);\n\tbn_check_top(rr);\n\treturn(ret);\n\t}', 'int BN_mod_exp_mont_consttime(BIGNUM *rr, const BIGNUM *a, const BIGNUM *p,\n\t\t const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *in_mont)\n\t{\n\tint i,bits,ret=0,idx,window,wvalue;\n\tsize_t top;\n \tBIGNUM *r;\n\tconst BIGNUM *aa;\n\tBN_MONT_CTX *mont=NULL;\n\tint numPowers;\n\tunsigned char *powerbufFree=NULL;\n\tsize_t powerbufLen = 0;\n\tunsigned char *powerbuf=NULL;\n\tBIGNUM *computeTemp=NULL, *am=NULL;\n\tbn_check_top(a);\n\tbn_check_top(p);\n\tbn_check_top(m);\n\ttop = m->top;\n\tif (!(m->d[0] & 1))\n\t\t{\n\t\tBNerr(BN_F_BN_MOD_EXP_MONT_CONSTTIME,BN_R_CALLED_WITH_EVEN_MODULUS);\n\t\treturn(0);\n\t\t}\n\tbits=BN_num_bits(p);\n\tif (bits == 0)\n\t\t{\n\t\tret = BN_one(rr);\n\t\treturn ret;\n\t\t}\n\tBN_CTX_start(ctx);\n\tr = BN_CTX_get(ctx);\n\tif (r == NULL) goto err;\n\tif (in_mont != NULL)\n\t\tmont=in_mont;\n\telse\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\twindow = BN_window_bits_for_ctime_exponent_size(bits);\n\tnumPowers = 1 << window;\n\tpowerbufLen = sizeof(m->d[0])*top*numPowers;\n\tif ((powerbufFree=OPENSSL_malloc(powerbufLen+MOD_EXP_CTIME_MIN_CACHE_LINE_WIDTH)) == NULL)\n\t\tgoto err;\n\tpowerbuf = MOD_EXP_CTIME_ALIGN(powerbufFree);\n\tmemset(powerbuf, 0, powerbufLen);\n \tif (!BN_to_montgomery(r,BN_value_one(),mont,ctx)) goto err;\n\tif (!MOD_EXP_CTIME_COPY_TO_PREBUF(r, top, powerbuf, 0, numPowers)) goto err;\n\tcomputeTemp = BN_CTX_get(ctx);\n\tam = BN_CTX_get(ctx);\n\tif (computeTemp==NULL || am==NULL) goto err;\n\tif (a->neg || BN_ucmp(a,m) >= 0)\n\t\t{\n\t\tif (!BN_mod(am,a,m,ctx))\n\t\t\tgoto err;\n\t\taa= am;\n\t\t}\n\telse\n\t\taa=a;\n\tif (!BN_to_montgomery(am,aa,mont,ctx)) goto err;\n\tif (!BN_copy(computeTemp, am)) goto err;\n\tif (!MOD_EXP_CTIME_COPY_TO_PREBUF(am, top, powerbuf, 1, numPowers)) goto err;\n\tif (window > 1)\n\t\t{\n\t\tfor (i=2; i<numPowers; i++)\n\t\t\t{\n\t\t\tif (!BN_mod_mul_montgomery(computeTemp,am,computeTemp,mont,ctx))\n\t\t\t\tgoto err;\n\t\t\tif (!MOD_EXP_CTIME_COPY_TO_PREBUF(computeTemp, top, powerbuf, i, numPowers)) goto err;\n\t\t\t}\n\t\t}\n \tbits = ((bits+window-1)/window)*window;\n \tidx=bits-1;\n \twhile (idx >= 0)\n \t\t{\n \t\twvalue=0;\n \t\tfor (i=0; i<window; i++,idx--)\n \t\t\t{\n\t\t\tif (!BN_mod_mul_montgomery(r,r,r,mont,ctx))\tgoto err;\n\t\t\twvalue = (wvalue<<1)+BN_is_bit_set(p,idx);\n \t\t\t}\n\t\tif (!MOD_EXP_CTIME_COPY_FROM_PREBUF(computeTemp, top, powerbuf, wvalue, numPowers)) goto err;\n \t\tif (!BN_mod_mul_montgomery(r,r,computeTemp,mont,ctx)) goto err;\n \t\t}\n\tif (!BN_from_montgomery(rr,r,mont,ctx)) goto err;\n\tret=1;\nerr:\n\tif ((in_mont == NULL) && (mont != NULL)) BN_MONT_CTX_free(mont);\n\tif (powerbuf!=NULL)\n\t\t{\n\t\tOPENSSL_cleanse(powerbuf,powerbufLen);\n\t\tOPENSSL_free(powerbufFree);\n\t\t}\n \tif (am!=NULL) BN_clear(am);\n \tif (computeTemp!=NULL) BN_clear(computeTemp);\n\tBN_CTX_end(ctx);\n\treturn(ret);\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\tsize_t 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+1U)) goto err;\n\tres->top=loop-1;\n\tresp= &(res->d[loop-1]);\n\tif (!bn_wexpand(tmp,div_n+1U)) 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}', 'int BN_lshift(BIGNUM *r, const BIGNUM *a, int n)\n\t{\n\tint i,nw,lb,rb;\n\tBN_ULONG *t,*f;\n\tBN_ULONG l;\n\tbn_check_top(r);\n\tbn_check_top(a);\n\tr->neg=a->neg;\n\tnw=n/BN_BITS2;\n\tif (bn_wexpand(r,a->top+nw+1) == NULL) return(0);\n\tlb=n%BN_BITS2;\n\trb=BN_BITS2-lb;\n\tf=a->d;\n\tt=r->d;\n\tt[a->top+nw]=0;\n\tif (lb == 0)\n\t\tfor (i=a->top-1; i>=0; i--)\n\t\t\tt[nw+i]=f[i];\n\telse\n\t\tfor (i=a->top-1; i>=0; i--)\n\t\t\t{\n\t\t\tl=f[i];\n\t\t\tt[nw+i+1]|=(l>>rb)&BN_MASK2;\n\t\t\tt[nw+i]=(l<<lb)&BN_MASK2;\n\t\t\t}\n\tmemset(t,0,nw*sizeof(t[0]));\n\tr->top=a->top+nw+1;\n\tbn_correct_top(r);\n\tbn_check_top(r);\n\treturn(1);\n\t}'] |
17,467 | 0 | https://github.com/openssl/openssl/blob/b1860d6c71733314417d053a72af66ae72e8268e/crypto/bn/bn_sqr.c/#L120 | void bn_sqr_normal(BN_ULONG *r, const BN_ULONG *a, int n, BN_ULONG *tmp)
{
int i, j, max;
const BN_ULONG *ap;
BN_ULONG *rp;
max = n * 2;
ap = a;
rp = r;
rp[0] = rp[max - 1] = 0;
rp++;
j = n;
if (--j > 0) {
ap++;
rp[j] = bn_mul_words(rp, ap, j, ap[-1]);
rp += 2;
}
for (i = n - 2; i > 0; i--) {
j--;
ap++;
rp[j] = bn_mul_add_words(rp, ap, j, ap[-1]);
rp += 2;
}
bn_add_words(r, r, r, max);
bn_sqr_words(tmp, a, n);
bn_add_words(r, r, tmp, max);
} | ['int BN_mod_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_is_one(m)) {\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_MONT_CTX_set(BN_MONT_CTX *mont, const BIGNUM *mod, BN_CTX *ctx)\n{\n int ret = 0;\n BIGNUM *Ri, *R;\n if (BN_is_zero(mod))\n return 0;\n BN_CTX_start(ctx);\n if ((Ri = BN_CTX_get(ctx)) == NULL)\n goto err;\n R = &(mont->RR);\n if (!BN_copy(&(mont->N), mod))\n goto err;\n 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 ret = 1;\n err:\n BN_CTX_end(ctx);\n return ret;\n}', 'int BN_lshift(BIGNUM *r, const BIGNUM *a, int n)\n{\n int i, nw, lb, rb;\n BN_ULONG *t, *f;\n BN_ULONG l;\n bn_check_top(r);\n bn_check_top(a);\n if (n < 0) {\n BNerr(BN_F_BN_LSHIFT, BN_R_INVALID_SHIFT);\n return 0;\n }\n nw = n / BN_BITS2;\n if (bn_wexpand(r, a->top + nw + 1) == NULL)\n return 0;\n r->neg = a->neg;\n lb = n % BN_BITS2;\n rb = BN_BITS2 - lb;\n f = a->d;\n t = r->d;\n t[a->top + nw] = 0;\n if (lb == 0)\n for (i = a->top - 1; i >= 0; i--)\n t[nw + i] = f[i];\n else\n for (i = a->top - 1; i >= 0; i--) {\n l = f[i];\n t[nw + i + 1] |= (l >> rb) & BN_MASK2;\n t[nw + i] = (l << lb) & BN_MASK2;\n }\n memset(t, 0, sizeof(*t) * nw);\n r->top = a->top + nw + 1;\n bn_correct_top(r);\n bn_check_top(r);\n return 1;\n}', 'int BN_to_montgomery(BIGNUM *r, const BIGNUM *a, BN_MONT_CTX *mont,\n BN_CTX *ctx)\n{\n return BN_mod_mul_montgomery(r, a, &(mont->RR), mont, ctx);\n}', 'int BN_mod_mul_montgomery(BIGNUM *r, const BIGNUM *a, const BIGNUM *b,\n BN_MONT_CTX *mont, BN_CTX *ctx)\n{\n BIGNUM *tmp;\n int ret = 0;\n#if defined(OPENSSL_BN_ASM_MONT) && defined(MONT_WORD)\n int num = mont->N.top;\n if (num > 1 && a->top == num && b->top == num) {\n if (bn_wexpand(r, num) == NULL)\n return 0;\n if (bn_mul_mont(r->d, a->d, b->d, mont->N.d, mont->n0, num)) {\n r->neg = a->neg ^ b->neg;\n r->top = num;\n bn_correct_top(r);\n return 1;\n }\n }\n#endif\n BN_CTX_start(ctx);\n tmp = BN_CTX_get(ctx);\n if (tmp == NULL)\n goto err;\n bn_check_top(tmp);\n if (a == b) {\n if (!BN_sqr(tmp, a, ctx))\n goto err;\n } else {\n if (!BN_mul(tmp, a, b, ctx))\n goto err;\n }\n#ifdef MONT_WORD\n if (!BN_from_montgomery_word(r, tmp, mont))\n goto err;\n#else\n if (!BN_from_montgomery(r, tmp, mont, ctx))\n goto err;\n#endif\n bn_check_top(r);\n ret = 1;\n err:\n BN_CTX_end(ctx);\n return ret;\n}', 'int BN_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 if (a->d[al - 1] == (a->d[al - 1] & BN_MASK2l))\n rr->top = max - 1;\n else\n rr->top = max;\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}'] |
17,468 | 0 | https://github.com/openssl/openssl/blob/ad962252857aac4350139fdbb6c8e3e6b0bdad7b/crypto/cms/cms_pwri.c/#L223 | static int kek_unwrap_key(unsigned char *out, size_t *outlen,
const unsigned char *in, size_t inlen,
EVP_CIPHER_CTX *ctx)
{
size_t blocklen = EVP_CIPHER_CTX_block_size(ctx);
unsigned char *tmp;
int outl, rv = 0;
if (inlen < 2 * blocklen) {
return 0;
}
if (inlen % blocklen) {
return 0;
}
if ((tmp = OPENSSL_malloc(inlen)) == NULL) {
CMSerr(CMS_F_KEK_UNWRAP_KEY, ERR_R_MALLOC_FAILURE);
return 0;
}
if (!EVP_DecryptUpdate(ctx, tmp + inlen - 2 * blocklen, &outl,
in + inlen - 2 * blocklen, blocklen * 2)
|| !EVP_DecryptUpdate(ctx, tmp, &outl,
tmp + inlen - blocklen, blocklen)
|| !EVP_DecryptUpdate(ctx, tmp, &outl, in, inlen - blocklen)
|| !EVP_DecryptInit_ex(ctx, NULL, NULL, NULL, NULL)
|| !EVP_DecryptUpdate(ctx, tmp, &outl, tmp, inlen))
goto err;
if (((tmp[1] ^ tmp[4]) & (tmp[2] ^ tmp[5]) & (tmp[3] ^ tmp[6])) != 0xff) {
goto err;
}
if (inlen < (size_t)(tmp[0] - 4)) {
goto err;
}
*outlen = (size_t)tmp[0];
memcpy(out, tmp + 4, *outlen);
rv = 1;
err:
OPENSSL_clear_free(tmp, inlen);
return rv;
} | ['int CMS_decrypt_set1_pkey(CMS_ContentInfo *cms, EVP_PKEY *pk, X509 *cert)\n{\n STACK_OF(CMS_RecipientInfo) *ris;\n CMS_RecipientInfo *ri;\n int i, r, ri_type;\n int debug = 0, match_ri = 0;\n ris = CMS_get0_RecipientInfos(cms);\n if (ris)\n debug = cms->d.envelopedData->encryptedContentInfo->debug;\n ri_type = cms_pkey_get_ri_type(pk);\n if (ri_type == CMS_RECIPINFO_NONE) {\n CMSerr(CMS_F_CMS_DECRYPT_SET1_PKEY,\n CMS_R_NOT_SUPPORTED_FOR_THIS_KEY_TYPE);\n return 0;\n }\n for (i = 0; i < sk_CMS_RecipientInfo_num(ris); i++) {\n ri = sk_CMS_RecipientInfo_value(ris, i);\n if (CMS_RecipientInfo_type(ri) != ri_type)\n continue;\n match_ri = 1;\n if (ri_type == CMS_RECIPINFO_AGREE) {\n r = cms_kari_set1_pkey(cms, ri, pk, cert);\n if (r > 0)\n return 1;\n if (r < 0)\n return 0;\n }\n else if (!cert || !CMS_RecipientInfo_ktri_cert_cmp(ri, cert)) {\n EVP_PKEY_up_ref(pk);\n CMS_RecipientInfo_set0_pkey(ri, pk);\n r = CMS_RecipientInfo_decrypt(cms, ri);\n CMS_RecipientInfo_set0_pkey(ri, NULL);\n if (cert) {\n if (!debug) {\n ERR_clear_error();\n return 1;\n }\n if (r > 0)\n return 1;\n CMSerr(CMS_F_CMS_DECRYPT_SET1_PKEY, CMS_R_DECRYPT_ERROR);\n return 0;\n }\n else if (r > 0 && debug)\n return 1;\n }\n }\n if (cert == NULL && ri_type == CMS_RECIPINFO_TRANS && match_ri && !debug) {\n ERR_clear_error();\n return 1;\n }\n CMSerr(CMS_F_CMS_DECRYPT_SET1_PKEY, CMS_R_NO_MATCHING_RECIPIENT);\n return 0;\n}', 'int CMS_RecipientInfo_ktri_cert_cmp(CMS_RecipientInfo *ri, X509 *cert)\n{\n if (ri->type != CMS_RECIPINFO_TRANS) {\n CMSerr(CMS_F_CMS_RECIPIENTINFO_KTRI_CERT_CMP,\n CMS_R_NOT_KEY_TRANSPORT);\n return -2;\n }\n return cms_SignerIdentifier_cert_cmp(ri->d.ktri->rid, cert);\n}', 'int CMS_RecipientInfo_decrypt(CMS_ContentInfo *cms, CMS_RecipientInfo *ri)\n{\n switch (ri->type) {\n case CMS_RECIPINFO_TRANS:\n return cms_RecipientInfo_ktri_decrypt(cms, ri);\n case CMS_RECIPINFO_KEK:\n return cms_RecipientInfo_kekri_decrypt(cms, ri);\n case CMS_RECIPINFO_PASS:\n return cms_RecipientInfo_pwri_crypt(cms, ri, 0);\n default:\n CMSerr(CMS_F_CMS_RECIPIENTINFO_DECRYPT,\n CMS_R_UNSUPPORTED_RECIPIENTINFO_TYPE);\n return 0;\n }\n}', 'int cms_RecipientInfo_pwri_crypt(CMS_ContentInfo *cms, CMS_RecipientInfo *ri,\n int en_de)\n{\n CMS_EncryptedContentInfo *ec;\n CMS_PasswordRecipientInfo *pwri;\n int r = 0;\n X509_ALGOR *algtmp, *kekalg = NULL;\n EVP_CIPHER_CTX *kekctx = NULL;\n const EVP_CIPHER *kekcipher;\n unsigned char *key = NULL;\n size_t keylen;\n ec = cms->d.envelopedData->encryptedContentInfo;\n pwri = ri->d.pwri;\n if (!pwri->pass) {\n CMSerr(CMS_F_CMS_RECIPIENTINFO_PWRI_CRYPT, CMS_R_NO_PASSWORD);\n return 0;\n }\n algtmp = pwri->keyEncryptionAlgorithm;\n if (!algtmp || OBJ_obj2nid(algtmp->algorithm) != NID_id_alg_PWRI_KEK) {\n CMSerr(CMS_F_CMS_RECIPIENTINFO_PWRI_CRYPT,\n CMS_R_UNSUPPORTED_KEY_ENCRYPTION_ALGORITHM);\n return 0;\n }\n kekalg = ASN1_TYPE_unpack_sequence(ASN1_ITEM_rptr(X509_ALGOR),\n algtmp->parameter);\n if (kekalg == NULL) {\n CMSerr(CMS_F_CMS_RECIPIENTINFO_PWRI_CRYPT,\n CMS_R_INVALID_KEY_ENCRYPTION_PARAMETER);\n return 0;\n }\n kekcipher = EVP_get_cipherbyobj(kekalg->algorithm);\n if (!kekcipher) {\n CMSerr(CMS_F_CMS_RECIPIENTINFO_PWRI_CRYPT, CMS_R_UNKNOWN_CIPHER);\n return 0;\n }\n kekctx = EVP_CIPHER_CTX_new();\n if (kekctx == NULL) {\n CMSerr(CMS_F_CMS_RECIPIENTINFO_PWRI_CRYPT, ERR_R_MALLOC_FAILURE);\n return 0;\n }\n if (!EVP_CipherInit_ex(kekctx, kekcipher, NULL, NULL, NULL, en_de))\n goto err;\n EVP_CIPHER_CTX_set_padding(kekctx, 0);\n if (EVP_CIPHER_asn1_to_param(kekctx, kekalg->parameter) < 0) {\n CMSerr(CMS_F_CMS_RECIPIENTINFO_PWRI_CRYPT,\n CMS_R_CIPHER_PARAMETER_INITIALISATION_ERROR);\n goto err;\n }\n algtmp = pwri->keyDerivationAlgorithm;\n if (EVP_PBE_CipherInit(algtmp->algorithm,\n (char *)pwri->pass, pwri->passlen,\n algtmp->parameter, kekctx, en_de) < 0) {\n CMSerr(CMS_F_CMS_RECIPIENTINFO_PWRI_CRYPT, ERR_R_EVP_LIB);\n goto err;\n }\n if (en_de) {\n if (!kek_wrap_key(NULL, &keylen, ec->key, ec->keylen, kekctx))\n goto err;\n key = OPENSSL_malloc(keylen);\n if (key == NULL)\n goto err;\n if (!kek_wrap_key(key, &keylen, ec->key, ec->keylen, kekctx))\n goto err;\n pwri->encryptedKey->data = key;\n pwri->encryptedKey->length = keylen;\n } else {\n key = OPENSSL_malloc(pwri->encryptedKey->length);\n if (key == NULL) {\n CMSerr(CMS_F_CMS_RECIPIENTINFO_PWRI_CRYPT, ERR_R_MALLOC_FAILURE);\n goto err;\n }\n if (!kek_unwrap_key(key, &keylen,\n pwri->encryptedKey->data,\n pwri->encryptedKey->length, kekctx)) {\n CMSerr(CMS_F_CMS_RECIPIENTINFO_PWRI_CRYPT, CMS_R_UNWRAP_FAILURE);\n goto err;\n }\n ec->key = key;\n ec->keylen = keylen;\n }\n r = 1;\n err:\n EVP_CIPHER_CTX_free(kekctx);\n if (!r)\n OPENSSL_free(key);\n X509_ALGOR_free(kekalg);\n return r;\n}', 'static int kek_unwrap_key(unsigned char *out, size_t *outlen,\n const unsigned char *in, size_t inlen,\n EVP_CIPHER_CTX *ctx)\n{\n size_t blocklen = EVP_CIPHER_CTX_block_size(ctx);\n unsigned char *tmp;\n int outl, rv = 0;\n if (inlen < 2 * blocklen) {\n return 0;\n }\n if (inlen % blocklen) {\n return 0;\n }\n if ((tmp = OPENSSL_malloc(inlen)) == NULL) {\n CMSerr(CMS_F_KEK_UNWRAP_KEY, ERR_R_MALLOC_FAILURE);\n return 0;\n }\n if (!EVP_DecryptUpdate(ctx, tmp + inlen - 2 * blocklen, &outl,\n in + inlen - 2 * blocklen, blocklen * 2)\n || !EVP_DecryptUpdate(ctx, tmp, &outl,\n tmp + inlen - blocklen, blocklen)\n || !EVP_DecryptUpdate(ctx, tmp, &outl, in, inlen - blocklen)\n || !EVP_DecryptInit_ex(ctx, NULL, NULL, NULL, NULL)\n || !EVP_DecryptUpdate(ctx, tmp, &outl, tmp, inlen))\n goto err;\n if (((tmp[1] ^ tmp[4]) & (tmp[2] ^ tmp[5]) & (tmp[3] ^ tmp[6])) != 0xff) {\n goto err;\n }\n if (inlen < (size_t)(tmp[0] - 4)) {\n goto err;\n }\n *outlen = (size_t)tmp[0];\n memcpy(out, tmp + 4, *outlen);\n rv = 1;\n err:\n OPENSSL_clear_free(tmp, inlen);\n return rv;\n}', 'int EVP_DecryptUpdate(EVP_CIPHER_CTX *ctx, unsigned char *out, int *outl,\n const unsigned char *in, int inl)\n{\n int fix_len, cmpl = inl;\n unsigned int b;\n b = ctx->cipher->block_size;\n if (EVP_CIPHER_CTX_test_flags(ctx, EVP_CIPH_FLAG_LENGTH_BITS))\n cmpl = (cmpl + 7) / 8;\n if (ctx->cipher->flags & EVP_CIPH_FLAG_CUSTOM_CIPHER) {\n if (b == 1 && is_partially_overlapping(out, in, cmpl)) {\n EVPerr(EVP_F_EVP_DECRYPTUPDATE, EVP_R_PARTIALLY_OVERLAPPING);\n return 0;\n }\n fix_len = ctx->cipher->do_cipher(ctx, out, in, inl);\n if (fix_len < 0) {\n *outl = 0;\n return 0;\n } else\n *outl = fix_len;\n return 1;\n }\n if (inl <= 0) {\n *outl = 0;\n return inl == 0;\n }\n if (ctx->flags & EVP_CIPH_NO_PADDING)\n return EVP_EncryptUpdate(ctx, out, outl, in, inl);\n OPENSSL_assert(b <= sizeof(ctx->final));\n if (ctx->final_used) {\n if (((PTRDIFF_T)out == (PTRDIFF_T)in)\n || is_partially_overlapping(out, in, b)) {\n EVPerr(EVP_F_EVP_DECRYPTUPDATE, EVP_R_PARTIALLY_OVERLAPPING);\n return 0;\n }\n memcpy(out, ctx->final, b);\n out += b;\n fix_len = 1;\n } else\n fix_len = 0;\n if (!EVP_EncryptUpdate(ctx, out, outl, in, inl))\n return 0;\n if (b > 1 && !ctx->buf_len) {\n *outl -= b;\n ctx->final_used = 1;\n memcpy(ctx->final, &out[*outl], b);\n } else\n ctx->final_used = 0;\n if (fix_len)\n *outl += b;\n return 1;\n}', 'void *CRYPTO_malloc(size_t num, const char *file, int line)\n{\n void *ret = NULL;\n INCREMENT(malloc_count);\n if (malloc_impl != NULL && malloc_impl != CRYPTO_malloc)\n return malloc_impl(num, file, line);\n if (num == 0)\n return NULL;\n FAILTEST();\n if (allow_customize) {\n allow_customize = 0;\n }\n#ifndef OPENSSL_NO_CRYPTO_MDEBUG\n if (call_malloc_debug) {\n CRYPTO_mem_debug_malloc(NULL, num, 0, file, line);\n ret = malloc(num);\n CRYPTO_mem_debug_malloc(ret, num, 1, file, line);\n } else {\n ret = malloc(num);\n }\n#else\n (void)(file); (void)(line);\n ret = malloc(num);\n#endif\n return ret;\n}'] |
17,469 | 0 | https://github.com/libav/libav/blob/41874d0a5df35732367f0c675eac914c23d65aee/libavformat/matroskadec.c/#L909 | static int matroska_decode_buffer(uint8_t** buf, int* buf_size,
MatroskaTrack *track)
{
MatroskaTrackEncoding *encodings = track->encodings.elem;
uint8_t* data = *buf;
int isize = *buf_size;
uint8_t* pkt_data = NULL;
int pkt_size = isize;
int result = 0;
int olen;
switch (encodings[0].compression.algo) {
case MATROSKA_TRACK_ENCODING_COMP_HEADERSTRIP:
return encodings[0].compression.settings.size;
case MATROSKA_TRACK_ENCODING_COMP_LZO:
do {
olen = pkt_size *= 3;
pkt_data = av_realloc(pkt_data, pkt_size+AV_LZO_OUTPUT_PADDING);
result = av_lzo1x_decode(pkt_data, &olen, data, &isize);
} while (result==AV_LZO_OUTPUT_FULL && pkt_size<10000000);
if (result)
goto failed;
pkt_size -= olen;
break;
#if CONFIG_ZLIB
case MATROSKA_TRACK_ENCODING_COMP_ZLIB: {
z_stream zstream = {0};
if (inflateInit(&zstream) != Z_OK)
return -1;
zstream.next_in = data;
zstream.avail_in = isize;
do {
pkt_size *= 3;
pkt_data = av_realloc(pkt_data, pkt_size);
zstream.avail_out = pkt_size - zstream.total_out;
zstream.next_out = pkt_data + zstream.total_out;
result = inflate(&zstream, Z_NO_FLUSH);
} while (result==Z_OK && pkt_size<10000000);
pkt_size = zstream.total_out;
inflateEnd(&zstream);
if (result != Z_STREAM_END)
goto failed;
break;
}
#endif
#if CONFIG_BZLIB
case MATROSKA_TRACK_ENCODING_COMP_BZLIB: {
bz_stream bzstream = {0};
if (BZ2_bzDecompressInit(&bzstream, 0, 0) != BZ_OK)
return -1;
bzstream.next_in = data;
bzstream.avail_in = isize;
do {
pkt_size *= 3;
pkt_data = av_realloc(pkt_data, pkt_size);
bzstream.avail_out = pkt_size - bzstream.total_out_lo32;
bzstream.next_out = pkt_data + bzstream.total_out_lo32;
result = BZ2_bzDecompress(&bzstream);
} while (result==BZ_OK && pkt_size<10000000);
pkt_size = bzstream.total_out_lo32;
BZ2_bzDecompressEnd(&bzstream);
if (result != BZ_STREAM_END)
goto failed;
break;
}
#endif
default:
return -1;
}
*buf = pkt_data;
*buf_size = pkt_size;
return 0;
failed:
av_free(pkt_data);
return -1;
} | ['static int matroska_decode_buffer(uint8_t** buf, int* buf_size,\n MatroskaTrack *track)\n{\n MatroskaTrackEncoding *encodings = track->encodings.elem;\n uint8_t* data = *buf;\n int isize = *buf_size;\n uint8_t* pkt_data = NULL;\n int pkt_size = isize;\n int result = 0;\n int olen;\n switch (encodings[0].compression.algo) {\n case MATROSKA_TRACK_ENCODING_COMP_HEADERSTRIP:\n return encodings[0].compression.settings.size;\n case MATROSKA_TRACK_ENCODING_COMP_LZO:\n do {\n olen = pkt_size *= 3;\n pkt_data = av_realloc(pkt_data, pkt_size+AV_LZO_OUTPUT_PADDING);\n result = av_lzo1x_decode(pkt_data, &olen, data, &isize);\n } while (result==AV_LZO_OUTPUT_FULL && pkt_size<10000000);\n if (result)\n goto failed;\n pkt_size -= olen;\n break;\n#if CONFIG_ZLIB\n case MATROSKA_TRACK_ENCODING_COMP_ZLIB: {\n z_stream zstream = {0};\n if (inflateInit(&zstream) != Z_OK)\n return -1;\n zstream.next_in = data;\n zstream.avail_in = isize;\n do {\n pkt_size *= 3;\n pkt_data = av_realloc(pkt_data, pkt_size);\n zstream.avail_out = pkt_size - zstream.total_out;\n zstream.next_out = pkt_data + zstream.total_out;\n result = inflate(&zstream, Z_NO_FLUSH);\n } while (result==Z_OK && pkt_size<10000000);\n pkt_size = zstream.total_out;\n inflateEnd(&zstream);\n if (result != Z_STREAM_END)\n goto failed;\n break;\n }\n#endif\n#if CONFIG_BZLIB\n case MATROSKA_TRACK_ENCODING_COMP_BZLIB: {\n bz_stream bzstream = {0};\n if (BZ2_bzDecompressInit(&bzstream, 0, 0) != BZ_OK)\n return -1;\n bzstream.next_in = data;\n bzstream.avail_in = isize;\n do {\n pkt_size *= 3;\n pkt_data = av_realloc(pkt_data, pkt_size);\n bzstream.avail_out = pkt_size - bzstream.total_out_lo32;\n bzstream.next_out = pkt_data + bzstream.total_out_lo32;\n result = BZ2_bzDecompress(&bzstream);\n } while (result==BZ_OK && pkt_size<10000000);\n pkt_size = bzstream.total_out_lo32;\n BZ2_bzDecompressEnd(&bzstream);\n if (result != BZ_STREAM_END)\n goto failed;\n break;\n }\n#endif\n default:\n return -1;\n }\n *buf = pkt_data;\n *buf_size = pkt_size;\n return 0;\n failed:\n av_free(pkt_data);\n return -1;\n}', 'void *av_realloc(void *ptr, unsigned int 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}'] |
17,470 | 0 | https://github.com/libav/libav/blob/3ec394ea823c2a6e65a6abbdb2041ce1c66964f8/libavcodec/motion_est_template.c/#L724 | static int l2s_dia_search(MpegEncContext * s, int *best, int dmin,
int src_index, int ref_index, int const penalty_factor,
int size, int h, int flags)
{
MotionEstContext * const c= &s->me;
me_cmp_func cmpf, chroma_cmpf;
LOAD_COMMON
LOAD_COMMON2
int map_generation= c->map_generation;
int x,y,i,d;
int dia_size= c->dia_size&0xFF;
const int dec= dia_size & (dia_size-1);
static const int hex[8][2]={{-2, 0}, {-1,-1}, { 0,-2}, { 1,-1},
{ 2, 0}, { 1, 1}, { 0, 2}, {-1, 1}};
cmpf= s->dsp.me_cmp[size];
chroma_cmpf= s->dsp.me_cmp[size+1];
for(; dia_size; dia_size= dec ? dia_size-1 : dia_size>>1){
do{
x= best[0];
y= best[1];
for(i=0; i<8; i++){
CHECK_CLIPPED_MV(x+hex[i][0]*dia_size, y+hex[i][1]*dia_size);
}
}while(best[0] != x || best[1] != y);
}
x= best[0];
y= best[1];
CHECK_CLIPPED_MV(x+1, y);
CHECK_CLIPPED_MV(x, y+1);
CHECK_CLIPPED_MV(x-1, y);
CHECK_CLIPPED_MV(x, y-1);
return dmin;
} | ['static int l2s_dia_search(MpegEncContext * s, int *best, int dmin,\n int src_index, int ref_index, int const penalty_factor,\n int size, int h, int flags)\n{\n MotionEstContext * const c= &s->me;\n me_cmp_func cmpf, chroma_cmpf;\n LOAD_COMMON\n LOAD_COMMON2\n int map_generation= c->map_generation;\n int x,y,i,d;\n int dia_size= c->dia_size&0xFF;\n const int dec= dia_size & (dia_size-1);\n static const int hex[8][2]={{-2, 0}, {-1,-1}, { 0,-2}, { 1,-1},\n { 2, 0}, { 1, 1}, { 0, 2}, {-1, 1}};\n cmpf= s->dsp.me_cmp[size];\n chroma_cmpf= s->dsp.me_cmp[size+1];\n for(; dia_size; dia_size= dec ? dia_size-1 : dia_size>>1){\n do{\n x= best[0];\n y= best[1];\n for(i=0; i<8; i++){\n CHECK_CLIPPED_MV(x+hex[i][0]*dia_size, y+hex[i][1]*dia_size);\n }\n }while(best[0] != x || best[1] != y);\n }\n x= best[0];\n y= best[1];\n CHECK_CLIPPED_MV(x+1, y);\n CHECK_CLIPPED_MV(x, y+1);\n CHECK_CLIPPED_MV(x-1, y);\n CHECK_CLIPPED_MV(x, y-1);\n return dmin;\n}'] |
17,471 | 0 | https://github.com/openssl/openssl/blob/0cb957a6846dde0bee52f69c538aae5e7062ac73/apps/x509.c/#L912 | static int x509_certify(X509_STORE *ctx, char *CAfile, const EVP_MD *digest,
X509 *x, X509 *xca, EVP_PKEY *pkey, char *serialfile, int create,
int days, int clrext, LHASH *conf, char *section)
{
int ret=0;
BIO *io=NULL;
MS_STATIC char buf2[1024];
char *buf=NULL,*p;
BIGNUM *serial=NULL;
ASN1_INTEGER *bs=NULL,bs2;
X509_STORE_CTX xsc;
EVP_PKEY *upkey;
upkey = X509_get_pubkey(xca);
EVP_PKEY_copy_parameters(upkey,pkey);
EVP_PKEY_free(upkey);
X509_STORE_CTX_init(&xsc,ctx,x,NULL);
buf=Malloc(EVP_PKEY_size(pkey)*2+
((serialfile == NULL)
?(strlen(CAfile)+strlen(POSTFIX)+1)
:(strlen(serialfile)))+1);
if (buf == NULL) { BIO_printf(bio_err,"out of mem\n"); goto end; }
if (serialfile == NULL)
{
strcpy(buf,CAfile);
for (p=buf; *p; p++)
if (*p == '.')
{
*p='\0';
break;
}
strcat(buf,POSTFIX);
}
else
strcpy(buf,serialfile);
serial=BN_new();
bs=ASN1_INTEGER_new();
if ((serial == NULL) || (bs == NULL))
{
ERR_print_errors(bio_err);
goto end;
}
io=BIO_new(BIO_s_file());
if (io == NULL)
{
ERR_print_errors(bio_err);
goto end;
}
if (BIO_read_filename(io,buf) <= 0)
{
if (!create)
{
perror(buf);
goto end;
}
else
{
ASN1_INTEGER_set(bs,1);
BN_one(serial);
}
}
else
{
if (!a2i_ASN1_INTEGER(io,bs,buf2,1024))
{
BIO_printf(bio_err,"unable to load serial number from %s\n",buf);
ERR_print_errors(bio_err);
goto end;
}
else
{
serial=BN_bin2bn(bs->data,bs->length,serial);
if (serial == NULL)
{
BIO_printf(bio_err,"error converting bin 2 bn");
goto end;
}
}
}
if (!BN_add_word(serial,1))
{ BIO_printf(bio_err,"add_word failure\n"); goto end; }
bs2.data=(unsigned char *)buf2;
bs2.length=BN_bn2bin(serial,bs2.data);
if (BIO_write_filename(io,buf) <= 0)
{
BIO_printf(bio_err,"error attempting to write serial number file\n");
perror(buf);
goto end;
}
i2a_ASN1_INTEGER(io,&bs2);
BIO_puts(io,"\n");
BIO_free(io);
io=NULL;
if (!X509_STORE_add_cert(ctx,x)) goto end;
X509_STORE_CTX_set_cert(&xsc,x);
if (!reqfile && !X509_verify_cert(&xsc))
goto end;
if (!X509_check_private_key(xca,pkey))
{
BIO_printf(bio_err,"CA certificate and CA private key do not match\n");
goto end;
}
if (!X509_set_issuer_name(x,X509_get_subject_name(xca))) goto end;
if (!X509_set_serialNumber(x,bs)) goto end;
if (X509_gmtime_adj(X509_get_notBefore(x),0L) == NULL)
goto end;
if (X509_gmtime_adj(X509_get_notAfter(x),(long)60*60*24*days) == NULL)
goto end;
if(clrext) {
while(X509_get_ext_count(x) > 0) X509_delete_ext(x, 0);
}
if(conf) {
X509V3_CTX ctx2;
X509_set_version(x,2);
X509V3_set_ctx(&ctx2, xca, x, NULL, NULL, 0);
X509V3_set_conf_lhash(&ctx2, conf);
if(!X509V3_EXT_add_conf(conf, &ctx2, section, x)) goto end;
}
if (!X509_sign(x,pkey,digest)) goto end;
ret=1;
end:
X509_STORE_CTX_cleanup(&xsc);
if (!ret)
ERR_print_errors(bio_err);
if (buf != NULL) Free(buf);
if (bs != NULL) ASN1_INTEGER_free(bs);
if (io != NULL) BIO_free(io);
if (serial != NULL) BN_free(serial);
return(ret);
} | ['static int x509_certify(X509_STORE *ctx, char *CAfile, const EVP_MD *digest,\n\t X509 *x, X509 *xca, EVP_PKEY *pkey, char *serialfile, int create,\n\t int days, int clrext, LHASH *conf, char *section)\n\t{\n\tint ret=0;\n\tBIO *io=NULL;\n\tMS_STATIC char buf2[1024];\n\tchar *buf=NULL,*p;\n\tBIGNUM *serial=NULL;\n\tASN1_INTEGER *bs=NULL,bs2;\n\tX509_STORE_CTX xsc;\n\tEVP_PKEY *upkey;\n\tupkey = X509_get_pubkey(xca);\n\tEVP_PKEY_copy_parameters(upkey,pkey);\n\tEVP_PKEY_free(upkey);\n\tX509_STORE_CTX_init(&xsc,ctx,x,NULL);\n\tbuf=Malloc(EVP_PKEY_size(pkey)*2+\n\t\t((serialfile == NULL)\n\t\t\t?(strlen(CAfile)+strlen(POSTFIX)+1)\n\t\t\t:(strlen(serialfile)))+1);\n\tif (buf == NULL) { BIO_printf(bio_err,"out of mem\\n"); goto end; }\n\tif (serialfile == NULL)\n\t\t{\n\t\tstrcpy(buf,CAfile);\n\t\tfor (p=buf; *p; p++)\n\t\t\tif (*p == \'.\')\n\t\t\t\t{\n\t\t\t\t*p=\'\\0\';\n\t\t\t\tbreak;\n\t\t\t\t}\n\t\tstrcat(buf,POSTFIX);\n\t\t}\n\telse\n\t\tstrcpy(buf,serialfile);\n\tserial=BN_new();\n\tbs=ASN1_INTEGER_new();\n\tif ((serial == NULL) || (bs == NULL))\n\t\t{\n\t\tERR_print_errors(bio_err);\n\t\tgoto end;\n\t\t}\n\tio=BIO_new(BIO_s_file());\n\tif (io == NULL)\n\t\t{\n\t\tERR_print_errors(bio_err);\n\t\tgoto end;\n\t\t}\n\tif (BIO_read_filename(io,buf) <= 0)\n\t\t{\n\t\tif (!create)\n\t\t\t{\n\t\t\tperror(buf);\n\t\t\tgoto end;\n\t\t\t}\n\t\telse\n\t\t\t{\n\t\t\tASN1_INTEGER_set(bs,1);\n\t\t\tBN_one(serial);\n\t\t\t}\n\t\t}\n\telse\n\t\t{\n\t\tif (!a2i_ASN1_INTEGER(io,bs,buf2,1024))\n\t\t\t{\n\t\t\tBIO_printf(bio_err,"unable to load serial number from %s\\n",buf);\n\t\t\tERR_print_errors(bio_err);\n\t\t\tgoto end;\n\t\t\t}\n\t\telse\n\t\t\t{\n\t\t\tserial=BN_bin2bn(bs->data,bs->length,serial);\n\t\t\tif (serial == NULL)\n\t\t\t\t{\n\t\t\t\tBIO_printf(bio_err,"error converting bin 2 bn");\n\t\t\t\tgoto end;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\tif (!BN_add_word(serial,1))\n\t\t{ BIO_printf(bio_err,"add_word failure\\n"); goto end; }\n\tbs2.data=(unsigned char *)buf2;\n\tbs2.length=BN_bn2bin(serial,bs2.data);\n\tif (BIO_write_filename(io,buf) <= 0)\n\t\t{\n\t\tBIO_printf(bio_err,"error attempting to write serial number file\\n");\n\t\tperror(buf);\n\t\tgoto end;\n\t\t}\n\ti2a_ASN1_INTEGER(io,&bs2);\n\tBIO_puts(io,"\\n");\n\tBIO_free(io);\n\tio=NULL;\n\tif (!X509_STORE_add_cert(ctx,x)) goto end;\n\tX509_STORE_CTX_set_cert(&xsc,x);\n\tif (!reqfile && !X509_verify_cert(&xsc))\n\t\tgoto end;\n\tif (!X509_check_private_key(xca,pkey))\n\t\t{\n\t\tBIO_printf(bio_err,"CA certificate and CA private key do not match\\n");\n\t\tgoto end;\n\t\t}\n\tif (!X509_set_issuer_name(x,X509_get_subject_name(xca))) goto end;\n\tif (!X509_set_serialNumber(x,bs)) goto end;\n\tif (X509_gmtime_adj(X509_get_notBefore(x),0L) == NULL)\n\t\tgoto end;\n\tif (X509_gmtime_adj(X509_get_notAfter(x),(long)60*60*24*days) == NULL)\n\t\tgoto end;\n\tif(clrext) {\n\t\twhile(X509_get_ext_count(x) > 0) X509_delete_ext(x, 0);\n\t}\n\tif(conf) {\n\t\tX509V3_CTX ctx2;\n\t\tX509_set_version(x,2);\n X509V3_set_ctx(&ctx2, xca, x, NULL, NULL, 0);\n X509V3_set_conf_lhash(&ctx2, conf);\n if(!X509V3_EXT_add_conf(conf, &ctx2, section, x)) goto end;\n\t}\n\tif (!X509_sign(x,pkey,digest)) goto end;\n\tret=1;\nend:\n\tX509_STORE_CTX_cleanup(&xsc);\n\tif (!ret)\n\t\tERR_print_errors(bio_err);\n\tif (buf != NULL) Free(buf);\n\tif (bs != NULL) ASN1_INTEGER_free(bs);\n\tif (io != NULL)\tBIO_free(io);\n\tif (serial != NULL) BN_free(serial);\n\treturn(ret);\n\t}', 'EVP_PKEY *X509_get_pubkey(X509 *x)\n\t{\n\tif ((x == NULL) || (x->cert_info == NULL))\n\t\treturn(NULL);\n\treturn(X509_PUBKEY_get(x->cert_info->key));\n\t}'] |
17,472 | 1 | https://github.com/libav/libav/blob/fd92dafaff8844b5fedf94679b93d953939a7f7b/libavcodec/bitstream.h/#L236 | static inline void skip_remaining(BitstreamContext *bc, unsigned n)
{
#ifdef BITSTREAM_READER_LE
bc->bits >>= n;
#else
bc->bits <<= n;
#endif
bc->bits_left -= n;
} | ['static inline unsigned int decode_scalar(BitstreamContext *bc, int k, int bps)\n{\n unsigned int x = get_unary_0_9(bc);\n if (x > 8) {\n x = bitstream_read(bc, bps);\n } else if (k != 1) {\n int extrabits = bitstream_peek(bc, k);\n x = (x << k) - x;\n if (extrabits > 1) {\n x += extrabits - 1;\n bitstream_skip(bc, k);\n } else\n bitstream_skip(bc, k - 1);\n }\n return x;\n}', 'static inline int get_unary_0_9(BitstreamContext *bc)\n{\n return get_unary(bc, 0, 9);\n}', 'static inline int get_unary(BitstreamContext *bc, int stop, int len)\n{\n int i;\n for (i = 0; i < len && bitstream_read_bit(bc) != stop; i++)\n ;\n return i;\n}', 'static inline unsigned bitstream_peek(BitstreamContext *bc, unsigned n)\n{\n if (n > bc->bits_left)\n refill_32(bc);\n return show_val(bc, n);\n}', 'static inline void bitstream_skip(BitstreamContext *bc, unsigned n)\n{\n if (n <= bc->bits_left)\n skip_remaining(bc, n);\n else {\n n -= bc->bits_left;\n skip_remaining(bc, bc->bits_left);\n if (n >= 64) {\n unsigned skip = n / 8;\n n -= skip * 8;\n bc->ptr += skip;\n }\n refill_64(bc);\n if (n)\n skip_remaining(bc, n);\n }\n}', 'static inline void skip_remaining(BitstreamContext *bc, unsigned n)\n{\n#ifdef BITSTREAM_READER_LE\n bc->bits >>= n;\n#else\n bc->bits <<= n;\n#endif\n bc->bits_left -= n;\n}'] |
17,473 | 0 | https://github.com/openssl/openssl/blob/e02c519cd32a55e6ad39a0cfbeeda775f9115f28/crypto/bn/bn_mul.c/#L266 | void bn_mul_recursive(BN_ULONG *r, BN_ULONG *a, BN_ULONG *b, int n2,
int dna, int dnb, BN_ULONG *t)
{
int n = n2 / 2, c1, c2;
int tna = n + dna, tnb = n + dnb;
unsigned int neg, zero;
BN_ULONG ln, lo, *p;
# ifdef BN_MUL_COMBA
# if 0
if (n2 == 4) {
bn_mul_comba4(r, a, b);
return;
}
# endif
if (n2 == 8 && dna == 0 && dnb == 0) {
bn_mul_comba8(r, a, b);
return;
}
# endif
if (n2 < BN_MUL_RECURSIVE_SIZE_NORMAL) {
bn_mul_normal(r, a, n2 + dna, b, n2 + dnb);
if ((dna + dnb) < 0)
memset(&r[2 * n2 + dna + dnb], 0,
sizeof(BN_ULONG) * -(dna + dnb));
return;
}
c1 = bn_cmp_part_words(a, &(a[n]), tna, n - tna);
c2 = bn_cmp_part_words(&(b[n]), b, tnb, tnb - n);
zero = neg = 0;
switch (c1 * 3 + c2) {
case -4:
bn_sub_part_words(t, &(a[n]), a, tna, tna - n);
bn_sub_part_words(&(t[n]), b, &(b[n]), tnb, n - tnb);
break;
case -3:
zero = 1;
break;
case -2:
bn_sub_part_words(t, &(a[n]), a, tna, tna - n);
bn_sub_part_words(&(t[n]), &(b[n]), b, tnb, tnb - n);
neg = 1;
break;
case -1:
case 0:
case 1:
zero = 1;
break;
case 2:
bn_sub_part_words(t, a, &(a[n]), tna, n - tna);
bn_sub_part_words(&(t[n]), b, &(b[n]), tnb, n - tnb);
neg = 1;
break;
case 3:
zero = 1;
break;
case 4:
bn_sub_part_words(t, a, &(a[n]), tna, n - tna);
bn_sub_part_words(&(t[n]), &(b[n]), b, tnb, tnb - n);
break;
}
# ifdef BN_MUL_COMBA
if (n == 4 && dna == 0 && dnb == 0) {
if (!zero)
bn_mul_comba4(&(t[n2]), t, &(t[n]));
else
memset(&t[n2], 0, sizeof(*t) * 8);
bn_mul_comba4(r, a, b);
bn_mul_comba4(&(r[n2]), &(a[n]), &(b[n]));
} else if (n == 8 && dna == 0 && dnb == 0) {
if (!zero)
bn_mul_comba8(&(t[n2]), t, &(t[n]));
else
memset(&t[n2], 0, sizeof(*t) * 16);
bn_mul_comba8(r, a, b);
bn_mul_comba8(&(r[n2]), &(a[n]), &(b[n]));
} else
# endif
{
p = &(t[n2 * 2]);
if (!zero)
bn_mul_recursive(&(t[n2]), t, &(t[n]), n, 0, 0, p);
else
memset(&t[n2], 0, sizeof(*t) * n2);
bn_mul_recursive(r, a, b, n, 0, 0, p);
bn_mul_recursive(&(r[n2]), &(a[n]), &(b[n]), n, dna, dnb, p);
}
c1 = (int)(bn_add_words(t, r, &(r[n2]), n2));
if (neg) {
c1 -= (int)(bn_sub_words(&(t[n2]), t, &(t[n2]), n2));
} else {
c1 += (int)(bn_add_words(&(t[n2]), &(t[n2]), t, n2));
}
c1 += (int)(bn_add_words(&(r[n]), &(r[n]), &(t[n2]), n2));
if (c1) {
p = &(r[n + n2]);
lo = *p;
ln = (lo + c1) & BN_MASK2;
*p = ln;
if (ln < (BN_ULONG)c1) {
do {
p++;
lo = *p;
ln = (lo + 1) & BN_MASK2;
*p = ln;
} while (ln == 0);
}
}
} | ['int ecdh_simple_compute_key(unsigned char **pout, size_t *poutlen,\n const EC_POINT *pub_key, const EC_KEY *ecdh)\n{\n BN_CTX *ctx;\n EC_POINT *tmp = NULL;\n BIGNUM *x = NULL;\n const BIGNUM *priv_key;\n const EC_GROUP *group;\n int ret = 0;\n size_t buflen, len;\n unsigned char *buf = NULL;\n if ((ctx = BN_CTX_new()) == NULL)\n goto err;\n BN_CTX_start(ctx);\n x = BN_CTX_get(ctx);\n if (x == NULL) {\n ECerr(EC_F_ECDH_SIMPLE_COMPUTE_KEY, ERR_R_MALLOC_FAILURE);\n goto err;\n }\n priv_key = EC_KEY_get0_private_key(ecdh);\n if (priv_key == NULL) {\n ECerr(EC_F_ECDH_SIMPLE_COMPUTE_KEY, EC_R_NO_PRIVATE_VALUE);\n goto err;\n }\n group = EC_KEY_get0_group(ecdh);\n if (EC_KEY_get_flags(ecdh) & EC_FLAG_COFACTOR_ECDH) {\n if (!EC_GROUP_get_cofactor(group, x, NULL) ||\n !BN_mul(x, x, priv_key, ctx)) {\n ECerr(EC_F_ECDH_SIMPLE_COMPUTE_KEY, ERR_R_MALLOC_FAILURE);\n goto err;\n }\n priv_key = x;\n }\n if ((tmp = EC_POINT_new(group)) == NULL) {\n ECerr(EC_F_ECDH_SIMPLE_COMPUTE_KEY, ERR_R_MALLOC_FAILURE);\n goto err;\n }\n if (!EC_POINT_mul(group, tmp, NULL, pub_key, priv_key, ctx)) {\n ECerr(EC_F_ECDH_SIMPLE_COMPUTE_KEY, EC_R_POINT_ARITHMETIC_FAILURE);\n goto err;\n }\n if (!EC_POINT_get_affine_coordinates(group, tmp, x, NULL, ctx)) {\n ECerr(EC_F_ECDH_SIMPLE_COMPUTE_KEY, EC_R_POINT_ARITHMETIC_FAILURE);\n goto err;\n }\n buflen = (EC_GROUP_get_degree(group) + 7) / 8;\n len = BN_num_bytes(x);\n if (len > buflen) {\n ECerr(EC_F_ECDH_SIMPLE_COMPUTE_KEY, ERR_R_INTERNAL_ERROR);\n goto err;\n }\n if ((buf = OPENSSL_malloc(buflen)) == NULL) {\n ECerr(EC_F_ECDH_SIMPLE_COMPUTE_KEY, ERR_R_MALLOC_FAILURE);\n goto err;\n }\n memset(buf, 0, buflen - len);\n if (len != (size_t)BN_bn2bin(x, buf + buflen - len)) {\n ECerr(EC_F_ECDH_SIMPLE_COMPUTE_KEY, ERR_R_BN_LIB);\n goto err;\n }\n *pout = buf;\n *poutlen = buflen;\n buf = NULL;\n ret = 1;\n err:\n EC_POINT_free(tmp);\n if (ctx)\n BN_CTX_end(ctx);\n BN_CTX_free(ctx);\n OPENSSL_free(buf);\n return ret;\n}', 'int EC_GROUP_get_cofactor(const EC_GROUP *group, BIGNUM *cofactor,\n BN_CTX *ctx)\n{\n if (group->cofactor == NULL)\n return 0;\n if (!BN_copy(cofactor, group->cofactor))\n return 0;\n return !BN_is_zero(group->cofactor);\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_mul_recursive(BN_ULONG *r, BN_ULONG *a, BN_ULONG *b, int n2,\n int dna, int dnb, BN_ULONG *t)\n{\n int n = n2 / 2, c1, c2;\n int tna = n + dna, tnb = n + dnb;\n unsigned int neg, zero;\n BN_ULONG ln, lo, *p;\n# ifdef BN_MUL_COMBA\n# if 0\n if (n2 == 4) {\n bn_mul_comba4(r, a, b);\n return;\n }\n# endif\n if (n2 == 8 && dna == 0 && dnb == 0) {\n bn_mul_comba8(r, a, b);\n return;\n }\n# endif\n if (n2 < BN_MUL_RECURSIVE_SIZE_NORMAL) {\n bn_mul_normal(r, a, n2 + dna, b, n2 + dnb);\n if ((dna + dnb) < 0)\n memset(&r[2 * n2 + dna + dnb], 0,\n sizeof(BN_ULONG) * -(dna + dnb));\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 zero = 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 zero = 1;\n break;\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 zero = 1;\n break;\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 zero = 1;\n break;\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# ifdef BN_MUL_COMBA\n if (n == 4 && dna == 0 && dnb == 0) {\n if (!zero)\n bn_mul_comba4(&(t[n2]), t, &(t[n]));\n else\n memset(&t[n2], 0, sizeof(*t) * 8);\n bn_mul_comba4(r, a, b);\n bn_mul_comba4(&(r[n2]), &(a[n]), &(b[n]));\n } else if (n == 8 && dna == 0 && dnb == 0) {\n if (!zero)\n bn_mul_comba8(&(t[n2]), t, &(t[n]));\n else\n memset(&t[n2], 0, sizeof(*t) * 16);\n bn_mul_comba8(r, a, b);\n bn_mul_comba8(&(r[n2]), &(a[n]), &(b[n]));\n } else\n# endif\n {\n p = &(t[n2 * 2]);\n if (!zero)\n bn_mul_recursive(&(t[n2]), t, &(t[n]), n, 0, 0, p);\n else\n memset(&t[n2], 0, sizeof(*t) * n2);\n bn_mul_recursive(r, a, b, n, 0, 0, p);\n bn_mul_recursive(&(r[n2]), &(a[n]), &(b[n]), n, dna, dnb, p);\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}'] |
17,474 | 0 | https://github.com/openssl/openssl/blob/95dc05bc6d0dfe0f3f3681f5e27afbc3f7a35eea/crypto/cast/c_skey.c/#L163 | void CAST_set_key(CAST_KEY *key, int len, unsigned char *data)
{
CAST_LONG x[16];
CAST_LONG z[16];
CAST_LONG k[32];
CAST_LONG X[4],Z[4];
CAST_LONG l,*K;
int i;
for (i=0; i<16; i++) x[i]=0;
if (len > 16) len=16;
for (i=0; i<len; i++)
x[i]=data[i];
if(len <= 10)
key->short_key=1;
else
key->short_key=0;
K= &k[0];
X[0]=((x[ 0]<<24)|(x[ 1]<<16)|(x[ 2]<<8)|x[ 3])&0xffffffffL;
X[1]=((x[ 4]<<24)|(x[ 5]<<16)|(x[ 6]<<8)|x[ 7])&0xffffffffL;
X[2]=((x[ 8]<<24)|(x[ 9]<<16)|(x[10]<<8)|x[11])&0xffffffffL;
X[3]=((x[12]<<24)|(x[13]<<16)|(x[14]<<8)|x[15])&0xffffffffL;
for (;;)
{
l=X[0]^S4[x[13]]^S5[x[15]]^S6[x[12]]^S7[x[14]]^S6[x[ 8]];
CAST_exp(l,Z,z, 0);
l=X[2]^S4[z[ 0]]^S5[z[ 2]]^S6[z[ 1]]^S7[z[ 3]]^S7[x[10]];
CAST_exp(l,Z,z, 4);
l=X[3]^S4[z[ 7]]^S5[z[ 6]]^S6[z[ 5]]^S7[z[ 4]]^S4[x[ 9]];
CAST_exp(l,Z,z, 8);
l=X[1]^S4[z[10]]^S5[z[ 9]]^S6[z[11]]^S7[z[ 8]]^S5[x[11]];
CAST_exp(l,Z,z,12);
K[ 0]= S4[z[ 8]]^S5[z[ 9]]^S6[z[ 7]]^S7[z[ 6]]^S4[z[ 2]];
K[ 1]= S4[z[10]]^S5[z[11]]^S6[z[ 5]]^S7[z[ 4]]^S5[z[ 6]];
K[ 2]= S4[z[12]]^S5[z[13]]^S6[z[ 3]]^S7[z[ 2]]^S6[z[ 9]];
K[ 3]= S4[z[14]]^S5[z[15]]^S6[z[ 1]]^S7[z[ 0]]^S7[z[12]];
l=Z[2]^S4[z[ 5]]^S5[z[ 7]]^S6[z[ 4]]^S7[z[ 6]]^S6[z[ 0]];
CAST_exp(l,X,x, 0);
l=Z[0]^S4[x[ 0]]^S5[x[ 2]]^S6[x[ 1]]^S7[x[ 3]]^S7[z[ 2]];
CAST_exp(l,X,x, 4);
l=Z[1]^S4[x[ 7]]^S5[x[ 6]]^S6[x[ 5]]^S7[x[ 4]]^S4[z[ 1]];
CAST_exp(l,X,x, 8);
l=Z[3]^S4[x[10]]^S5[x[ 9]]^S6[x[11]]^S7[x[ 8]]^S5[z[ 3]];
CAST_exp(l,X,x,12);
K[ 4]= S4[x[ 3]]^S5[x[ 2]]^S6[x[12]]^S7[x[13]]^S4[x[ 8]];
K[ 5]= S4[x[ 1]]^S5[x[ 0]]^S6[x[14]]^S7[x[15]]^S5[x[13]];
K[ 6]= S4[x[ 7]]^S5[x[ 6]]^S6[x[ 8]]^S7[x[ 9]]^S6[x[ 3]];
K[ 7]= S4[x[ 5]]^S5[x[ 4]]^S6[x[10]]^S7[x[11]]^S7[x[ 7]];
l=X[0]^S4[x[13]]^S5[x[15]]^S6[x[12]]^S7[x[14]]^S6[x[ 8]];
CAST_exp(l,Z,z, 0);
l=X[2]^S4[z[ 0]]^S5[z[ 2]]^S6[z[ 1]]^S7[z[ 3]]^S7[x[10]];
CAST_exp(l,Z,z, 4);
l=X[3]^S4[z[ 7]]^S5[z[ 6]]^S6[z[ 5]]^S7[z[ 4]]^S4[x[ 9]];
CAST_exp(l,Z,z, 8);
l=X[1]^S4[z[10]]^S5[z[ 9]]^S6[z[11]]^S7[z[ 8]]^S5[x[11]];
CAST_exp(l,Z,z,12);
K[ 8]= S4[z[ 3]]^S5[z[ 2]]^S6[z[12]]^S7[z[13]]^S4[z[ 9]];
K[ 9]= S4[z[ 1]]^S5[z[ 0]]^S6[z[14]]^S7[z[15]]^S5[z[12]];
K[10]= S4[z[ 7]]^S5[z[ 6]]^S6[z[ 8]]^S7[z[ 9]]^S6[z[ 2]];
K[11]= S4[z[ 5]]^S5[z[ 4]]^S6[z[10]]^S7[z[11]]^S7[z[ 6]];
l=Z[2]^S4[z[ 5]]^S5[z[ 7]]^S6[z[ 4]]^S7[z[ 6]]^S6[z[ 0]];
CAST_exp(l,X,x, 0);
l=Z[0]^S4[x[ 0]]^S5[x[ 2]]^S6[x[ 1]]^S7[x[ 3]]^S7[z[ 2]];
CAST_exp(l,X,x, 4);
l=Z[1]^S4[x[ 7]]^S5[x[ 6]]^S6[x[ 5]]^S7[x[ 4]]^S4[z[ 1]];
CAST_exp(l,X,x, 8);
l=Z[3]^S4[x[10]]^S5[x[ 9]]^S6[x[11]]^S7[x[ 8]]^S5[z[ 3]];
CAST_exp(l,X,x,12);
K[12]= S4[x[ 8]]^S5[x[ 9]]^S6[x[ 7]]^S7[x[ 6]]^S4[x[ 3]];
K[13]= S4[x[10]]^S5[x[11]]^S6[x[ 5]]^S7[x[ 4]]^S5[x[ 7]];
K[14]= S4[x[12]]^S5[x[13]]^S6[x[ 3]]^S7[x[ 2]]^S6[x[ 8]];
K[15]= S4[x[14]]^S5[x[15]]^S6[x[ 1]]^S7[x[ 0]]^S7[x[13]];
if (K != k) break;
K+=16;
}
for (i=0; i<16; i++)
{
key->data[i*2]=k[i];
key->data[i*2+1]=((k[i+16])+16)&0x1f;
}
} | ['void CAST_set_key(CAST_KEY *key, int len, unsigned char *data)\n\t{\n\tCAST_LONG x[16];\n\tCAST_LONG z[16];\n\tCAST_LONG k[32];\n\tCAST_LONG X[4],Z[4];\n\tCAST_LONG l,*K;\n\tint i;\n\tfor (i=0; i<16; i++) x[i]=0;\n\tif (len > 16) len=16;\n\tfor (i=0; i<len; i++)\n\t\tx[i]=data[i];\n\tif(len <= 10)\n\t key->short_key=1;\n\telse\n\t key->short_key=0;\n\tK= &k[0];\n\tX[0]=((x[ 0]<<24)|(x[ 1]<<16)|(x[ 2]<<8)|x[ 3])&0xffffffffL;\n\tX[1]=((x[ 4]<<24)|(x[ 5]<<16)|(x[ 6]<<8)|x[ 7])&0xffffffffL;\n\tX[2]=((x[ 8]<<24)|(x[ 9]<<16)|(x[10]<<8)|x[11])&0xffffffffL;\n\tX[3]=((x[12]<<24)|(x[13]<<16)|(x[14]<<8)|x[15])&0xffffffffL;\n\tfor (;;)\n\t\t{\n\tl=X[0]^S4[x[13]]^S5[x[15]]^S6[x[12]]^S7[x[14]]^S6[x[ 8]];\n\tCAST_exp(l,Z,z, 0);\n\tl=X[2]^S4[z[ 0]]^S5[z[ 2]]^S6[z[ 1]]^S7[z[ 3]]^S7[x[10]];\n\tCAST_exp(l,Z,z, 4);\n\tl=X[3]^S4[z[ 7]]^S5[z[ 6]]^S6[z[ 5]]^S7[z[ 4]]^S4[x[ 9]];\n\tCAST_exp(l,Z,z, 8);\n\tl=X[1]^S4[z[10]]^S5[z[ 9]]^S6[z[11]]^S7[z[ 8]]^S5[x[11]];\n\tCAST_exp(l,Z,z,12);\n\tK[ 0]= S4[z[ 8]]^S5[z[ 9]]^S6[z[ 7]]^S7[z[ 6]]^S4[z[ 2]];\n\tK[ 1]= S4[z[10]]^S5[z[11]]^S6[z[ 5]]^S7[z[ 4]]^S5[z[ 6]];\n\tK[ 2]= S4[z[12]]^S5[z[13]]^S6[z[ 3]]^S7[z[ 2]]^S6[z[ 9]];\n\tK[ 3]= S4[z[14]]^S5[z[15]]^S6[z[ 1]]^S7[z[ 0]]^S7[z[12]];\n\tl=Z[2]^S4[z[ 5]]^S5[z[ 7]]^S6[z[ 4]]^S7[z[ 6]]^S6[z[ 0]];\n\tCAST_exp(l,X,x, 0);\n\tl=Z[0]^S4[x[ 0]]^S5[x[ 2]]^S6[x[ 1]]^S7[x[ 3]]^S7[z[ 2]];\n\tCAST_exp(l,X,x, 4);\n\tl=Z[1]^S4[x[ 7]]^S5[x[ 6]]^S6[x[ 5]]^S7[x[ 4]]^S4[z[ 1]];\n\tCAST_exp(l,X,x, 8);\n\tl=Z[3]^S4[x[10]]^S5[x[ 9]]^S6[x[11]]^S7[x[ 8]]^S5[z[ 3]];\n\tCAST_exp(l,X,x,12);\n\tK[ 4]= S4[x[ 3]]^S5[x[ 2]]^S6[x[12]]^S7[x[13]]^S4[x[ 8]];\n\tK[ 5]= S4[x[ 1]]^S5[x[ 0]]^S6[x[14]]^S7[x[15]]^S5[x[13]];\n\tK[ 6]= S4[x[ 7]]^S5[x[ 6]]^S6[x[ 8]]^S7[x[ 9]]^S6[x[ 3]];\n\tK[ 7]= S4[x[ 5]]^S5[x[ 4]]^S6[x[10]]^S7[x[11]]^S7[x[ 7]];\n\tl=X[0]^S4[x[13]]^S5[x[15]]^S6[x[12]]^S7[x[14]]^S6[x[ 8]];\n\tCAST_exp(l,Z,z, 0);\n\tl=X[2]^S4[z[ 0]]^S5[z[ 2]]^S6[z[ 1]]^S7[z[ 3]]^S7[x[10]];\n\tCAST_exp(l,Z,z, 4);\n\tl=X[3]^S4[z[ 7]]^S5[z[ 6]]^S6[z[ 5]]^S7[z[ 4]]^S4[x[ 9]];\n\tCAST_exp(l,Z,z, 8);\n\tl=X[1]^S4[z[10]]^S5[z[ 9]]^S6[z[11]]^S7[z[ 8]]^S5[x[11]];\n\tCAST_exp(l,Z,z,12);\n\tK[ 8]= S4[z[ 3]]^S5[z[ 2]]^S6[z[12]]^S7[z[13]]^S4[z[ 9]];\n\tK[ 9]= S4[z[ 1]]^S5[z[ 0]]^S6[z[14]]^S7[z[15]]^S5[z[12]];\n\tK[10]= S4[z[ 7]]^S5[z[ 6]]^S6[z[ 8]]^S7[z[ 9]]^S6[z[ 2]];\n\tK[11]= S4[z[ 5]]^S5[z[ 4]]^S6[z[10]]^S7[z[11]]^S7[z[ 6]];\n\tl=Z[2]^S4[z[ 5]]^S5[z[ 7]]^S6[z[ 4]]^S7[z[ 6]]^S6[z[ 0]];\n\tCAST_exp(l,X,x, 0);\n\tl=Z[0]^S4[x[ 0]]^S5[x[ 2]]^S6[x[ 1]]^S7[x[ 3]]^S7[z[ 2]];\n\tCAST_exp(l,X,x, 4);\n\tl=Z[1]^S4[x[ 7]]^S5[x[ 6]]^S6[x[ 5]]^S7[x[ 4]]^S4[z[ 1]];\n\tCAST_exp(l,X,x, 8);\n\tl=Z[3]^S4[x[10]]^S5[x[ 9]]^S6[x[11]]^S7[x[ 8]]^S5[z[ 3]];\n\tCAST_exp(l,X,x,12);\n\tK[12]= S4[x[ 8]]^S5[x[ 9]]^S6[x[ 7]]^S7[x[ 6]]^S4[x[ 3]];\n\tK[13]= S4[x[10]]^S5[x[11]]^S6[x[ 5]]^S7[x[ 4]]^S5[x[ 7]];\n\tK[14]= S4[x[12]]^S5[x[13]]^S6[x[ 3]]^S7[x[ 2]]^S6[x[ 8]];\n\tK[15]= S4[x[14]]^S5[x[15]]^S6[x[ 1]]^S7[x[ 0]]^S7[x[13]];\n\tif (K != k) break;\n\tK+=16;\n\t\t}\n\tfor (i=0; i<16; i++)\n\t\t{\n\t\tkey->data[i*2]=k[i];\n\t\tkey->data[i*2+1]=((k[i+16])+16)&0x1f;\n\t\t}\n\t}'] |
17,475 | 0 | https://github.com/openssl/openssl/blob/49cd47eaababc8c57871b929080fc1357e2ad7b8/test/testutil/tests.c/#L412 | int test_BN_abs_eq_word(const char *file, int line, const char *bns,
const char *ws, const BIGNUM *a, BN_ULONG w)
{
BIGNUM *bw, *aa;
if (a != NULL && BN_abs_is_word(a, w))
return 1;
bw = BN_new();
aa = BN_dup(a);
BN_set_negative(aa, 0);
BN_set_word(bw, w);
test_fail_bignum_message(NULL, file, line, "BIGNUM", bns, ws, "abs==",
aa, bw);
BN_free(bw);
BN_free(aa);
return 0;
} | ['int test_BN_abs_eq_word(const char *file, int line, const char *bns,\n const char *ws, const BIGNUM *a, BN_ULONG w)\n{\n BIGNUM *bw, *aa;\n if (a != NULL && BN_abs_is_word(a, w))\n return 1;\n bw = BN_new();\n aa = BN_dup(a);\n BN_set_negative(aa, 0);\n BN_set_word(bw, w);\n test_fail_bignum_message(NULL, file, line, "BIGNUM", bns, ws, "abs==",\n aa, bw);\n BN_free(bw);\n BN_free(aa);\n return 0;\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}', 'BIGNUM *BN_dup(const BIGNUM *a)\n{\n BIGNUM *t;\n if (a == NULL)\n return NULL;\n bn_check_top(a);\n t = BN_get_flags(a, BN_FLG_SECURE) ? BN_secure_new() : BN_new();\n if (t == NULL)\n return NULL;\n if (!BN_copy(t, a)) {\n BN_free(t);\n return NULL;\n }\n bn_check_top(t);\n return t;\n}', 'int BN_get_flags(const BIGNUM *b, int n)\n{\n return b->flags & n;\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->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}', '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}', 'void BN_set_negative(BIGNUM *a, int b)\n{\n if (b && !BN_is_zero(a))\n a->neg = 1;\n else\n a->neg = 0;\n}'] |
17,476 | 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);
} | ['BIGNUM *int_bn_mod_inverse(BIGNUM *in,\n const BIGNUM *a, const BIGNUM *n, BN_CTX *ctx,\n int *pnoinv)\n{\n BIGNUM *A, *B, *X, *Y, *M, *D, *T, *R = NULL;\n BIGNUM *ret = NULL;\n int sign;\n if (pnoinv)\n *pnoinv = 0;\n if ((BN_get_flags(a, BN_FLG_CONSTTIME) != 0)\n || (BN_get_flags(n, BN_FLG_CONSTTIME) != 0)) {\n return BN_mod_inverse_no_branch(in, a, n, ctx);\n }\n bn_check_top(a);\n bn_check_top(n);\n BN_CTX_start(ctx);\n A = BN_CTX_get(ctx);\n B = BN_CTX_get(ctx);\n X = BN_CTX_get(ctx);\n D = BN_CTX_get(ctx);\n M = BN_CTX_get(ctx);\n Y = BN_CTX_get(ctx);\n T = BN_CTX_get(ctx);\n if (T == NULL)\n goto err;\n if (in == NULL)\n R = BN_new();\n else\n R = in;\n if (R == NULL)\n goto err;\n BN_one(X);\n BN_zero(Y);\n if (BN_copy(B, a) == NULL)\n goto err;\n if (BN_copy(A, n) == NULL)\n goto err;\n A->neg = 0;\n if (B->neg || (BN_ucmp(B, A) >= 0)) {\n if (!BN_nnmod(B, B, A, ctx))\n goto err;\n }\n sign = -1;\n if (BN_is_odd(n) && (BN_num_bits(n) <= (BN_BITS <= 32 ? 450 : 2048))) {\n int shift;\n while (!BN_is_zero(B)) {\n shift = 0;\n while (!BN_is_bit_set(B, shift)) {\n shift++;\n if (BN_is_odd(X)) {\n if (!BN_uadd(X, X, n))\n goto err;\n }\n if (!BN_rshift1(X, X))\n goto err;\n }\n if (shift > 0) {\n if (!BN_rshift(B, B, shift))\n goto err;\n }\n shift = 0;\n while (!BN_is_bit_set(A, shift)) {\n shift++;\n if (BN_is_odd(Y)) {\n if (!BN_uadd(Y, Y, n))\n goto err;\n }\n if (!BN_rshift1(Y, Y))\n goto err;\n }\n if (shift > 0) {\n if (!BN_rshift(A, A, shift))\n goto err;\n }\n if (BN_ucmp(B, A) >= 0) {\n if (!BN_uadd(X, X, Y))\n goto err;\n if (!BN_usub(B, B, A))\n goto err;\n } else {\n if (!BN_uadd(Y, Y, X))\n goto err;\n if (!BN_usub(A, A, B))\n goto err;\n }\n }\n } else {\n while (!BN_is_zero(B)) {\n BIGNUM *tmp;\n if (BN_num_bits(A) == BN_num_bits(B)) {\n if (!BN_one(D))\n goto err;\n if (!BN_sub(M, A, B))\n goto err;\n } else if (BN_num_bits(A) == BN_num_bits(B) + 1) {\n if (!BN_lshift1(T, B))\n goto err;\n if (BN_ucmp(A, T) < 0) {\n if (!BN_one(D))\n goto err;\n if (!BN_sub(M, A, B))\n goto err;\n } else {\n if (!BN_sub(M, A, T))\n goto err;\n if (!BN_add(D, T, B))\n goto err;\n if (BN_ucmp(A, D) < 0) {\n if (!BN_set_word(D, 2))\n goto err;\n } else {\n if (!BN_set_word(D, 3))\n goto err;\n if (!BN_sub(M, M, B))\n goto err;\n }\n }\n } else {\n if (!BN_div(D, M, A, B, ctx))\n goto err;\n }\n tmp = A;\n A = B;\n B = M;\n if (BN_is_one(D)) {\n if (!BN_add(tmp, X, Y))\n goto err;\n } else {\n if (BN_is_word(D, 2)) {\n if (!BN_lshift1(tmp, X))\n goto err;\n } else if (BN_is_word(D, 4)) {\n if (!BN_lshift(tmp, X, 2))\n goto err;\n } else if (D->top == 1) {\n if (!BN_copy(tmp, X))\n goto err;\n if (!BN_mul_word(tmp, D->d[0]))\n goto err;\n } else {\n if (!BN_mul(tmp, D, X, ctx))\n goto err;\n }\n if (!BN_add(tmp, tmp, Y))\n goto err;\n }\n M = Y;\n Y = X;\n X = tmp;\n sign = -sign;\n }\n }\n if (sign < 0) {\n if (!BN_sub(Y, n, Y))\n goto err;\n }\n if (BN_is_one(A)) {\n if (!Y->neg && BN_ucmp(Y, n) < 0) {\n if (!BN_copy(R, Y))\n goto err;\n } else {\n if (!BN_nnmod(R, Y, n, ctx))\n goto err;\n }\n } else {\n if (pnoinv)\n *pnoinv = 1;\n goto err;\n }\n ret = R;\n err:\n if ((ret == NULL) && (in == NULL))\n BN_free(R);\n BN_CTX_end(ctx);\n bn_check_top(ret);\n return (ret);\n}', 'BIGNUM *BN_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}'] |
17,477 | 0 | https://github.com/openssl/openssl/blob/de2f409ef9de775df6db2c7de69b7bb0df21e380/crypto/ocsp/ocsp_vfy.c/#L400 | int OCSP_request_verify(OCSP_REQUEST *req, STACK_OF(X509) *certs,
X509_STORE *store, unsigned long flags)
{
X509 *signer;
X509_NAME *nm;
GENERAL_NAME *gen;
int ret = 0;
X509_STORE_CTX *ctx = X509_STORE_CTX_new();
if (ctx == NULL) {
OCSPerr(OCSP_F_OCSP_REQUEST_VERIFY, ERR_R_MALLOC_FAILURE);
goto err;
}
if (!req->optionalSignature) {
OCSPerr(OCSP_F_OCSP_REQUEST_VERIFY, OCSP_R_REQUEST_NOT_SIGNED);
goto err;
}
gen = req->tbsRequest.requestorName;
if (!gen || gen->type != GEN_DIRNAME) {
OCSPerr(OCSP_F_OCSP_REQUEST_VERIFY,
OCSP_R_UNSUPPORTED_REQUESTORNAME_TYPE);
goto err;
}
nm = gen->d.directoryName;
ret = ocsp_req_find_signer(&signer, req, nm, certs, flags);
if (ret <= 0) {
OCSPerr(OCSP_F_OCSP_REQUEST_VERIFY,
OCSP_R_SIGNER_CERTIFICATE_NOT_FOUND);
goto err;
}
if ((ret == 2) && (flags & OCSP_TRUSTOTHER))
flags |= OCSP_NOVERIFY;
if (!(flags & OCSP_NOSIGS)) {
EVP_PKEY *skey;
skey = X509_get0_pubkey(signer);
ret = OCSP_REQUEST_verify(req, skey);
if (ret <= 0) {
OCSPerr(OCSP_F_OCSP_REQUEST_VERIFY, OCSP_R_SIGNATURE_FAILURE);
goto err;
}
}
if (!(flags & OCSP_NOVERIFY)) {
int init_res;
if (flags & OCSP_NOCHAIN)
init_res = X509_STORE_CTX_init(ctx, store, signer, NULL);
else
init_res = X509_STORE_CTX_init(ctx, store, signer,
req->optionalSignature->certs);
if (!init_res) {
OCSPerr(OCSP_F_OCSP_REQUEST_VERIFY, ERR_R_X509_LIB);
goto err;
}
X509_STORE_CTX_set_purpose(ctx, X509_PURPOSE_OCSP_HELPER);
X509_STORE_CTX_set_trust(ctx, X509_TRUST_OCSP_REQUEST);
ret = X509_verify_cert(ctx);
if (ret <= 0) {
ret = X509_STORE_CTX_get_error(ctx);
OCSPerr(OCSP_F_OCSP_REQUEST_VERIFY,
OCSP_R_CERTIFICATE_VERIFY_ERROR);
ERR_add_error_data(2, "Verify error:",
X509_verify_cert_error_string(ret));
goto err;
}
}
ret = 1;
goto end;
err:
ret = 0;
end:
X509_STORE_CTX_free(ctx);
return ret;
} | ['int OCSP_request_verify(OCSP_REQUEST *req, STACK_OF(X509) *certs,\n X509_STORE *store, unsigned long flags)\n{\n X509 *signer;\n X509_NAME *nm;\n GENERAL_NAME *gen;\n int ret = 0;\n X509_STORE_CTX *ctx = X509_STORE_CTX_new();\n if (ctx == NULL) {\n OCSPerr(OCSP_F_OCSP_REQUEST_VERIFY, ERR_R_MALLOC_FAILURE);\n goto err;\n }\n if (!req->optionalSignature) {\n OCSPerr(OCSP_F_OCSP_REQUEST_VERIFY, OCSP_R_REQUEST_NOT_SIGNED);\n goto err;\n }\n gen = req->tbsRequest.requestorName;\n if (!gen || gen->type != GEN_DIRNAME) {\n OCSPerr(OCSP_F_OCSP_REQUEST_VERIFY,\n OCSP_R_UNSUPPORTED_REQUESTORNAME_TYPE);\n goto err;\n }\n nm = gen->d.directoryName;\n ret = ocsp_req_find_signer(&signer, req, nm, certs, flags);\n if (ret <= 0) {\n OCSPerr(OCSP_F_OCSP_REQUEST_VERIFY,\n OCSP_R_SIGNER_CERTIFICATE_NOT_FOUND);\n goto err;\n }\n if ((ret == 2) && (flags & OCSP_TRUSTOTHER))\n flags |= OCSP_NOVERIFY;\n if (!(flags & OCSP_NOSIGS)) {\n EVP_PKEY *skey;\n skey = X509_get0_pubkey(signer);\n ret = OCSP_REQUEST_verify(req, skey);\n if (ret <= 0) {\n OCSPerr(OCSP_F_OCSP_REQUEST_VERIFY, OCSP_R_SIGNATURE_FAILURE);\n goto err;\n }\n }\n if (!(flags & OCSP_NOVERIFY)) {\n int init_res;\n if (flags & OCSP_NOCHAIN)\n init_res = X509_STORE_CTX_init(ctx, store, signer, NULL);\n else\n init_res = X509_STORE_CTX_init(ctx, store, signer,\n req->optionalSignature->certs);\n if (!init_res) {\n OCSPerr(OCSP_F_OCSP_REQUEST_VERIFY, ERR_R_X509_LIB);\n goto err;\n }\n X509_STORE_CTX_set_purpose(ctx, X509_PURPOSE_OCSP_HELPER);\n X509_STORE_CTX_set_trust(ctx, X509_TRUST_OCSP_REQUEST);\n ret = X509_verify_cert(ctx);\n if (ret <= 0) {\n ret = X509_STORE_CTX_get_error(ctx);\n OCSPerr(OCSP_F_OCSP_REQUEST_VERIFY,\n OCSP_R_CERTIFICATE_VERIFY_ERROR);\n ERR_add_error_data(2, "Verify error:",\n X509_verify_cert_error_string(ret));\n goto err;\n }\n }\n ret = 1;\n goto end;\nerr:\n ret = 0;\nend:\n X509_STORE_CTX_free(ctx);\n return ret;\n}', 'X509_STORE_CTX *X509_STORE_CTX_new(void)\n{\n X509_STORE_CTX *ctx = OPENSSL_zalloc(sizeof(*ctx));\n if (ctx == NULL) {\n X509err(X509_F_X509_STORE_CTX_NEW, ERR_R_MALLOC_FAILURE);\n return NULL;\n }\n return ctx;\n}', 'void *CRYPTO_zalloc(size_t num, const char *file, int line)\n{\n void *ret = CRYPTO_malloc(num, file, line);\n 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 osslargused(file); osslargused(line);\n ret = malloc(num);\n#endif\n return ret;\n}', 'void ERR_put_error(int lib, int func, int reason, const char *file, int line)\n{\n ERR_STATE *es;\n#ifdef _OSD_POSIX\n if (strncmp(file, "*POSIX(", sizeof("*POSIX(") - 1) == 0) {\n char *end;\n file += sizeof("*POSIX(") - 1;\n end = &file[strlen(file) - 1];\n if (*end == \')\')\n *end = \'\\0\';\n if ((end = strrchr(file, \'/\')) != NULL)\n file = &end[1];\n }\n#endif\n es = ERR_get_state();\n if (es == NULL)\n return;\n es->top = (es->top + 1) % ERR_NUM_ERRORS;\n if (es->top == es->bottom)\n es->bottom = (es->bottom + 1) % ERR_NUM_ERRORS;\n es->err_flags[es->top] = 0;\n es->err_buffer[es->top] = ERR_PACK(lib, func, reason);\n es->err_file[es->top] = file;\n es->err_line[es->top] = line;\n err_clear_data(es, es->top);\n}', 'ERR_STATE *ERR_get_state(void)\n{\n ERR_STATE *state = NULL;\n if (!RUN_ONCE(&err_init, err_do_init))\n return NULL;\n state = CRYPTO_THREAD_get_local(&err_thread_local);\n if (state == NULL) {\n state = OPENSSL_zalloc(sizeof(*state));\n if (state == NULL)\n return NULL;\n if (!ossl_init_thread_start(OPENSSL_INIT_THREAD_ERR_STATE)\n || !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 }\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 X509_STORE_CTX_free(X509_STORE_CTX *ctx)\n{\n if (ctx == NULL)\n return;\n X509_STORE_CTX_cleanup(ctx);\n OPENSSL_free(ctx);\n}', 'void CRYPTO_free(void *str, const char *file, int line)\n{\n if (free_impl != NULL && free_impl != &CRYPTO_free) {\n free_impl(str, file, line);\n return;\n }\n#ifndef OPENSSL_NO_CRYPTO_MDEBUG\n if (call_malloc_debug) {\n CRYPTO_mem_debug_free(str, 0, file, line);\n free(str);\n CRYPTO_mem_debug_free(str, 1, file, line);\n } else {\n free(str);\n }\n#else\n free(str);\n#endif\n}'] |
17,478 | 0 | https://github.com/libav/libav/blob/ddf5fb71ee9c8b2d9a23c0f661a84896cd7050fc/libavcodec/dv.c/#L291 | int ff_dvvideo_init(AVCodecContext *avctx)
{
DVVideoContext *s = avctx->priv_data;
static int done = 0;
int i, j;
if (!done) {
VLC dv_vlc;
uint16_t new_dv_vlc_bits[NB_DV_VLC * 2];
uint8_t new_dv_vlc_len[NB_DV_VLC * 2];
uint8_t new_dv_vlc_run[NB_DV_VLC * 2];
int16_t new_dv_vlc_level[NB_DV_VLC * 2];
done = 1;
for (i = 0, j = 0; i < NB_DV_VLC; i++, j++) {
new_dv_vlc_bits[j] = ff_dv_vlc_bits[i];
new_dv_vlc_len[j] = ff_dv_vlc_len[i];
new_dv_vlc_run[j] = ff_dv_vlc_run[i];
new_dv_vlc_level[j] = ff_dv_vlc_level[i];
if (ff_dv_vlc_level[i]) {
new_dv_vlc_bits[j] <<= 1;
new_dv_vlc_len[j]++;
j++;
new_dv_vlc_bits[j] = (ff_dv_vlc_bits[i] << 1) | 1;
new_dv_vlc_len[j] = ff_dv_vlc_len[i] + 1;
new_dv_vlc_run[j] = ff_dv_vlc_run[i];
new_dv_vlc_level[j] = -ff_dv_vlc_level[i];
}
}
init_vlc(&dv_vlc, TEX_VLC_BITS, j, new_dv_vlc_len,
1, 1, new_dv_vlc_bits, 2, 2, 0);
assert(dv_vlc.table_size == 1184);
for (i = 0; i < dv_vlc.table_size; i++) {
int code = dv_vlc.table[i][0];
int len = dv_vlc.table[i][1];
int level, run;
if (len < 0) {
run = 0;
level = code;
} else {
run = new_dv_vlc_run[code] + 1;
level = new_dv_vlc_level[code];
}
ff_dv_rl_vlc[i].len = len;
ff_dv_rl_vlc[i].level = level;
ff_dv_rl_vlc[i].run = run;
}
ff_free_vlc(&dv_vlc);
}
s->avctx = avctx;
avctx->chroma_sample_location = AVCHROMA_LOC_TOPLEFT;
return 0;
} | ['int ff_dvvideo_init(AVCodecContext *avctx)\n{\n DVVideoContext *s = avctx->priv_data;\n static int done = 0;\n int i, j;\n if (!done) {\n VLC dv_vlc;\n uint16_t new_dv_vlc_bits[NB_DV_VLC * 2];\n uint8_t new_dv_vlc_len[NB_DV_VLC * 2];\n uint8_t new_dv_vlc_run[NB_DV_VLC * 2];\n int16_t new_dv_vlc_level[NB_DV_VLC * 2];\n done = 1;\n for (i = 0, j = 0; i < NB_DV_VLC; i++, j++) {\n new_dv_vlc_bits[j] = ff_dv_vlc_bits[i];\n new_dv_vlc_len[j] = ff_dv_vlc_len[i];\n new_dv_vlc_run[j] = ff_dv_vlc_run[i];\n new_dv_vlc_level[j] = ff_dv_vlc_level[i];\n if (ff_dv_vlc_level[i]) {\n new_dv_vlc_bits[j] <<= 1;\n new_dv_vlc_len[j]++;\n j++;\n new_dv_vlc_bits[j] = (ff_dv_vlc_bits[i] << 1) | 1;\n new_dv_vlc_len[j] = ff_dv_vlc_len[i] + 1;\n new_dv_vlc_run[j] = ff_dv_vlc_run[i];\n new_dv_vlc_level[j] = -ff_dv_vlc_level[i];\n }\n }\n init_vlc(&dv_vlc, TEX_VLC_BITS, j, new_dv_vlc_len,\n 1, 1, new_dv_vlc_bits, 2, 2, 0);\n assert(dv_vlc.table_size == 1184);\n for (i = 0; i < dv_vlc.table_size; i++) {\n int code = dv_vlc.table[i][0];\n int len = dv_vlc.table[i][1];\n int level, run;\n if (len < 0) {\n run = 0;\n level = code;\n } else {\n run = new_dv_vlc_run[code] + 1;\n level = new_dv_vlc_level[code];\n }\n ff_dv_rl_vlc[i].len = len;\n ff_dv_rl_vlc[i].level = level;\n ff_dv_rl_vlc[i].run = run;\n }\n ff_free_vlc(&dv_vlc);\n }\n s->avctx = avctx;\n avctx->chroma_sample_location = AVCHROMA_LOC_TOPLEFT;\n return 0;\n}'] |
17,479 | 0 | https://github.com/nginx/nginx/blob/d55ce18c953ed46893f531e2d1ba6e4db6f7399d/src/http/ngx_http_file_cache.c/#L472 | static void
ngx_http_file_cache_lock_wait_handler(ngx_event_t *ev)
{
ngx_uint_t wait;
ngx_msec_t timer;
ngx_http_cache_t *c;
ngx_http_request_t *r;
ngx_http_file_cache_t *cache;
r = ev->data;
c = r->cache;
ngx_log_debug2(NGX_LOG_DEBUG_HTTP, ev->log, 0,
"http file cache wait handler wt:%M cur:%M",
c->wait_time, ngx_current_msec);
timer = c->wait_time - ngx_current_msec;
if ((ngx_msec_int_t) timer <= 0) {
ngx_log_debug0(NGX_LOG_DEBUG_HTTP, ev->log, 0,
"http file cache lock timeout");
c->lock = 0;
goto wakeup;
}
cache = c->file_cache;
wait = 0;
ngx_shmtx_lock(&cache->shpool->mutex);
if (c->node->updating) {
wait = 1;
}
ngx_shmtx_unlock(&cache->shpool->mutex);
if (wait) {
ngx_add_timer(ev, (timer > 500) ? 500 : timer);
return;
}
wakeup:
c->waiting = 0;
r->main->blocked--;
r->connection->write->handler(r->connection->write);
} | ['static void\nngx_http_file_cache_lock_wait_handler(ngx_event_t *ev)\n{\n ngx_uint_t wait;\n ngx_msec_t timer;\n ngx_http_cache_t *c;\n ngx_http_request_t *r;\n ngx_http_file_cache_t *cache;\n r = ev->data;\n c = r->cache;\n ngx_log_debug2(NGX_LOG_DEBUG_HTTP, ev->log, 0,\n "http file cache wait handler wt:%M cur:%M",\n c->wait_time, ngx_current_msec);\n timer = c->wait_time - ngx_current_msec;\n if ((ngx_msec_int_t) timer <= 0) {\n ngx_log_debug0(NGX_LOG_DEBUG_HTTP, ev->log, 0,\n "http file cache lock timeout");\n c->lock = 0;\n goto wakeup;\n }\n cache = c->file_cache;\n wait = 0;\n ngx_shmtx_lock(&cache->shpool->mutex);\n if (c->node->updating) {\n wait = 1;\n }\n ngx_shmtx_unlock(&cache->shpool->mutex);\n if (wait) {\n ngx_add_timer(ev, (timer > 500) ? 500 : timer);\n return;\n }\nwakeup:\n c->waiting = 0;\n r->main->blocked--;\n r->connection->write->handler(r->connection->write);\n}'] |
17,480 | 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_check_private_exponent(void)\n{\n int ret = 0;\n RSA *key = NULL;\n BN_CTX *ctx = NULL;\n BIGNUM *p = NULL, *q = NULL, *e = NULL, *d = NULL, *n = NULL;\n ret = TEST_ptr(key = RSA_new())\n && TEST_ptr(ctx = BN_CTX_new())\n && TEST_ptr(p = BN_new())\n && TEST_ptr(q = BN_new())\n && TEST_ptr(e = BN_new())\n && TEST_ptr(d = BN_new())\n && TEST_ptr(n = BN_new())\n && TEST_true(BN_set_word(p, 15))\n && TEST_true(BN_set_word(q, 17))\n && TEST_true(BN_set_word(e, 5))\n && TEST_true(BN_set_word(d, 157))\n && TEST_true(BN_set_word(n, 15*17))\n && TEST_true(RSA_set0_factors(key, p, q))\n && TEST_true(RSA_set0_key(key, n, e, d))\n && TEST_false(rsa_check_private_exponent(key, 8, ctx))\n && TEST_true(BN_set_word(d, 45))\n && TEST_true(rsa_check_private_exponent(key, 8, ctx))\n && TEST_false(rsa_check_private_exponent(key, 16, ctx))\n && TEST_true(BN_set_word(d, 16))\n && TEST_false(rsa_check_private_exponent(key, 8, ctx))\n && TEST_true(BN_set_word(d, 46))\n && TEST_false(rsa_check_private_exponent(key, 8, ctx));\n RSA_free(key);\n BN_CTX_free(ctx);\n return ret;\n}', 'int rsa_check_private_exponent(const RSA *rsa, int nbits, BN_CTX *ctx)\n{\n int ret;\n BIGNUM *r, *p1, *q1, *lcm, *p1q1, *gcd;\n if (BN_num_bits(rsa->d) <= (nbits >> 1))\n return 0;\n BN_CTX_start(ctx);\n r = BN_CTX_get(ctx);\n p1 = BN_CTX_get(ctx);\n q1 = BN_CTX_get(ctx);\n lcm = BN_CTX_get(ctx);\n p1q1 = BN_CTX_get(ctx);\n gcd = BN_CTX_get(ctx);\n ret = (gcd != NULL\n && (rsa_get_lcm(ctx, rsa->p, rsa->q, lcm, gcd, p1, q1, p1q1) == 1)\n && (BN_cmp(rsa->d, lcm) < 0)\n && BN_mod_mul(r, rsa->e, rsa->d, lcm, ctx)\n && BN_is_one(r));\n BN_clear(p1);\n BN_clear(q1);\n BN_clear(lcm);\n BN_clear(gcd);\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 rsa_get_lcm(BN_CTX *ctx, const BIGNUM *p, const BIGNUM *q,\n BIGNUM *lcm, BIGNUM *gcd, BIGNUM *p1, BIGNUM *q1,\n BIGNUM *p1q1)\n{\n return BN_sub(p1, p, BN_value_one())\n && BN_sub(q1, q, BN_value_one())\n && BN_mul(p1q1, p1, q1, ctx)\n && BN_gcd(gcd, p1, q1, ctx)\n && BN_div(lcm, NULL, p1q1, gcd, ctx);\n}', 'int BN_mul(BIGNUM *r, const BIGNUM *a, const BIGNUM *b, BN_CTX *ctx)\n{\n int ret = bn_mul_fixed_top(r, a, b, ctx);\n bn_correct_top(r);\n bn_check_top(r);\n return ret;\n}', 'int bn_mul_fixed_top(BIGNUM *r, const BIGNUM *a, const BIGNUM *b, BN_CTX *ctx)\n{\n int ret = 0;\n int top, al, bl;\n BIGNUM *rr;\n#if defined(BN_MUL_COMBA) || defined(BN_RECURSION)\n int i;\n#endif\n#ifdef BN_RECURSION\n BIGNUM *t = NULL;\n int j = 0, k;\n#endif\n bn_check_top(a);\n bn_check_top(b);\n bn_check_top(r);\n al = a->top;\n bl = b->top;\n if ((al == 0) || (bl == 0)) {\n BN_zero(r);\n return 1;\n }\n top = al + bl;\n BN_CTX_start(ctx);\n if ((r == a) || (r == b)) {\n if ((rr = BN_CTX_get(ctx)) == NULL)\n goto err;\n } else\n rr = r;\n#if defined(BN_MUL_COMBA) || defined(BN_RECURSION)\n i = al - bl;\n#endif\n#ifdef BN_MUL_COMBA\n if (i == 0) {\n# if 0\n if (al == 4) {\n if (bn_wexpand(rr, 8) == NULL)\n goto err;\n rr->top = 8;\n bn_mul_comba4(rr->d, a->d, b->d);\n goto end;\n }\n# endif\n if (al == 8) {\n if (bn_wexpand(rr, 16) == NULL)\n goto err;\n rr->top = 16;\n bn_mul_comba8(rr->d, a->d, b->d);\n goto end;\n }\n }\n#endif\n#ifdef BN_RECURSION\n if ((al >= BN_MULL_SIZE_NORMAL) && (bl >= BN_MULL_SIZE_NORMAL)) {\n if (i >= -1 && i <= 1) {\n if (i >= 0) {\n j = BN_num_bits_word((BN_ULONG)al);\n }\n if (i == -1) {\n j = BN_num_bits_word((BN_ULONG)bl);\n }\n j = 1 << (j - 1);\n assert(j <= al || j <= bl);\n k = j + j;\n t = BN_CTX_get(ctx);\n if (t == NULL)\n goto err;\n if (al > j || bl > j) {\n if (bn_wexpand(t, k * 4) == NULL)\n goto err;\n if (bn_wexpand(rr, k * 4) == NULL)\n goto err;\n bn_mul_part_recursive(rr->d, a->d, b->d,\n j, al - j, bl - j, t->d);\n } else {\n if (bn_wexpand(t, k * 2) == NULL)\n goto err;\n if (bn_wexpand(rr, k * 2) == NULL)\n goto err;\n bn_mul_recursive(rr->d, a->d, b->d, j, al - j, bl - j, t->d);\n }\n rr->top = top;\n goto end;\n }\n }\n#endif\n if (bn_wexpand(rr, top) == NULL)\n goto err;\n rr->top = top;\n bn_mul_normal(rr->d, a->d, al, b->d, bl);\n#if defined(BN_MUL_COMBA) || defined(BN_RECURSION)\n end:\n#endif\n rr->neg = a->neg ^ b->neg;\n rr->flags |= BN_FLG_FIXED_TOP;\n if (r != rr && BN_copy(r, rr) == NULL)\n goto err;\n ret = 1;\n err:\n bn_check_top(r);\n BN_CTX_end(ctx);\n return ret;\n}', 'void BN_CTX_end(BN_CTX *ctx)\n{\n 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}'] |
17,481 | 0 | https://github.com/openssl/openssl/blob/260a16f33682a819414fcba6161708a5e6bdff50/crypto/lhash/lhash.c/#L157 | void *OPENSSL_LH_delete(OPENSSL_LHASH *lh, const void *data)
{
unsigned long hash;
OPENSSL_LH_NODE *nn, **rn;
void *ret;
lh->error = 0;
rn = getrn(lh, data, &hash);
if (*rn == NULL) {
lh->num_no_delete++;
return NULL;
} else {
nn = *rn;
*rn = nn->next;
ret = nn->data;
OPENSSL_free(nn);
lh->num_delete++;
}
lh->num_items--;
if ((lh->num_nodes > MIN_NODES) &&
(lh->down_load >= (lh->num_items * LH_LOAD_MULT / lh->num_nodes)))
contract(lh);
return ret;
} | ['int ciphers_main(int argc, char **argv)\n{\n SSL_CTX *ctx = NULL;\n SSL *ssl = NULL;\n STACK_OF(SSL_CIPHER) *sk = NULL;\n const SSL_METHOD *meth = TLS_server_method();\n int ret = 1, i, verbose = 0, Verbose = 0, use_supported = 0;\n int stdname = 0;\n#ifndef OPENSSL_NO_PSK\n int psk = 0;\n#endif\n#ifndef OPENSSL_NO_SRP\n int srp = 0;\n#endif\n const char *p;\n char *ciphers = NULL, *prog, *convert = NULL, *ciphersuites = NULL;\n char buf[512];\n OPTION_CHOICE o;\n int min_version = 0, max_version = 0;\n prog = opt_init(argc, argv, ciphers_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(ciphers_options);\n ret = 0;\n goto end;\n case OPT_V:\n verbose = 1;\n break;\n case OPT_UPPER_V:\n verbose = Verbose = 1;\n break;\n case OPT_S:\n use_supported = 1;\n break;\n case OPT_STDNAME:\n stdname = verbose = 1;\n break;\n case OPT_CONVERT:\n convert = opt_arg();\n break;\n case OPT_SSL3:\n min_version = SSL3_VERSION;\n max_version = SSL3_VERSION;\n break;\n case OPT_TLS1:\n min_version = TLS1_VERSION;\n max_version = TLS1_VERSION;\n break;\n case OPT_TLS1_1:\n min_version = TLS1_1_VERSION;\n max_version = TLS1_1_VERSION;\n break;\n case OPT_TLS1_2:\n min_version = TLS1_2_VERSION;\n max_version = TLS1_2_VERSION;\n break;\n case OPT_TLS1_3:\n min_version = TLS1_3_VERSION;\n max_version = TLS1_3_VERSION;\n break;\n case OPT_PSK:\n#ifndef OPENSSL_NO_PSK\n psk = 1;\n#endif\n break;\n case OPT_SRP:\n#ifndef OPENSSL_NO_SRP\n srp = 1;\n#endif\n break;\n case OPT_CIPHERSUITES:\n ciphersuites = opt_arg();\n break;\n }\n }\n argv = opt_rest();\n argc = opt_num_rest();\n if (argc == 1)\n ciphers = *argv;\n else if (argc != 0)\n goto opthelp;\n if (convert != NULL) {\n BIO_printf(bio_out, "OpenSSL cipher name: %s\\n",\n OPENSSL_cipher_name(convert));\n goto end;\n }\n ctx = SSL_CTX_new(meth);\n if (ctx == NULL)\n goto err;\n if (SSL_CTX_set_min_proto_version(ctx, min_version) == 0)\n goto err;\n if (SSL_CTX_set_max_proto_version(ctx, max_version) == 0)\n goto err;\n#ifndef OPENSSL_NO_PSK\n if (psk)\n SSL_CTX_set_psk_client_callback(ctx, dummy_psk);\n#endif\n#ifndef OPENSSL_NO_SRP\n if (srp)\n SSL_CTX_set_srp_client_pwd_callback(ctx, dummy_srp);\n#endif\n if (ciphersuites != NULL && !SSL_CTX_set_ciphersuites(ctx, ciphersuites)) {\n BIO_printf(bio_err, "Error setting TLSv1.3 ciphersuites\\n");\n goto err;\n }\n if (ciphers != NULL) {\n if (!SSL_CTX_set_cipher_list(ctx, ciphers)) {\n BIO_printf(bio_err, "Error in cipher list\\n");\n goto err;\n }\n }\n ssl = SSL_new(ctx);\n if (ssl == NULL)\n goto err;\n if (use_supported)\n sk = SSL_get1_supported_ciphers(ssl);\n else\n sk = SSL_get_ciphers(ssl);\n if (!verbose) {\n for (i = 0; i < sk_SSL_CIPHER_num(sk); i++) {\n const SSL_CIPHER *c = sk_SSL_CIPHER_value(sk, i);\n p = SSL_CIPHER_get_name(c);\n if (p == NULL)\n break;\n if (i != 0)\n BIO_printf(bio_out, ":");\n BIO_printf(bio_out, "%s", p);\n }\n BIO_printf(bio_out, "\\n");\n } else {\n for (i = 0; i < sk_SSL_CIPHER_num(sk); i++) {\n const SSL_CIPHER *c;\n c = sk_SSL_CIPHER_value(sk, i);\n if (Verbose) {\n unsigned long id = SSL_CIPHER_get_id(c);\n int id0 = (int)(id >> 24);\n int id1 = (int)((id >> 16) & 0xffL);\n int id2 = (int)((id >> 8) & 0xffL);\n int id3 = (int)(id & 0xffL);\n if ((id & 0xff000000L) == 0x03000000L)\n BIO_printf(bio_out, " 0x%02X,0x%02X - ", id2, id3);\n else\n BIO_printf(bio_out, "0x%02X,0x%02X,0x%02X,0x%02X - ", id0, id1, id2, id3);\n }\n if (stdname) {\n const char *nm = SSL_CIPHER_standard_name(c);\n if (nm == NULL)\n nm = "UNKNOWN";\n BIO_printf(bio_out, "%s - ", nm);\n }\n BIO_puts(bio_out, SSL_CIPHER_description(c, buf, sizeof(buf)));\n }\n }\n ret = 0;\n goto end;\n err:\n ERR_print_errors(bio_err);\n end:\n if (use_supported)\n sk_SSL_CIPHER_free(sk);\n SSL_CTX_free(ctx);\n SSL_free(ssl);\n return ret;\n}', 'void SSL_free(SSL *s)\n{\n int i;\n if (s == NULL)\n return;\n CRYPTO_DOWN_REF(&s->references, &i, s->lock);\n REF_PRINT_COUNT("SSL", s);\n if (i > 0)\n return;\n REF_ASSERT_ISNT(i < 0);\n X509_VERIFY_PARAM_free(s->param);\n dane_final(&s->dane);\n CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);\n RECORD_LAYER_release(&s->rlayer);\n ssl_free_wbio_buffer(s);\n BIO_free_all(s->wbio);\n s->wbio = NULL;\n BIO_free_all(s->rbio);\n s->rbio = NULL;\n BUF_MEM_free(s->init_buf);\n sk_SSL_CIPHER_free(s->cipher_list);\n sk_SSL_CIPHER_free(s->cipher_list_by_id);\n sk_SSL_CIPHER_free(s->tls13_ciphersuites);\n if (s->session != NULL) {\n ssl_clear_bad_session(s);\n SSL_SESSION_free(s->session);\n }\n SSL_SESSION_free(s->psksession);\n OPENSSL_free(s->psksession_id);\n clear_ciphers(s);\n ssl_cert_free(s->cert);\n OPENSSL_free(s->ext.hostname);\n SSL_CTX_free(s->session_ctx);\n#ifndef OPENSSL_NO_EC\n OPENSSL_free(s->ext.ecpointformats);\n OPENSSL_free(s->ext.supportedgroups);\n#endif\n sk_X509_EXTENSION_pop_free(s->ext.ocsp.exts, X509_EXTENSION_free);\n#ifndef OPENSSL_NO_OCSP\n sk_OCSP_RESPID_pop_free(s->ext.ocsp.ids, OCSP_RESPID_free);\n#endif\n#ifndef OPENSSL_NO_CT\n SCT_LIST_free(s->scts);\n OPENSSL_free(s->ext.scts);\n#endif\n OPENSSL_free(s->ext.ocsp.resp);\n OPENSSL_free(s->ext.alpn);\n OPENSSL_free(s->ext.tls13_cookie);\n OPENSSL_free(s->clienthello);\n OPENSSL_free(s->pha_context);\n EVP_MD_CTX_free(s->pha_dgst);\n sk_X509_NAME_pop_free(s->ca_names, X509_NAME_free);\n sk_X509_NAME_pop_free(s->client_ca_names, X509_NAME_free);\n sk_X509_pop_free(s->verified_chain, X509_free);\n if (s->method != NULL)\n s->method->ssl_free(s);\n SSL_CTX_free(s->ctx);\n ASYNC_WAIT_CTX_free(s->waitctx);\n#if !defined(OPENSSL_NO_NEXTPROTONEG)\n OPENSSL_free(s->ext.npn);\n#endif\n#ifndef OPENSSL_NO_SRTP\n sk_SRTP_PROTECTION_PROFILE_free(s->srtp_profiles);\n#endif\n CRYPTO_THREAD_lock_free(s->lock);\n OPENSSL_free(s);\n}', 'int ssl_clear_bad_session(SSL *s)\n{\n if ((s->session != NULL) &&\n !(s->shutdown & SSL_SENT_SHUTDOWN) &&\n !(SSL_in_init(s) || SSL_in_before(s))) {\n SSL_CTX_remove_session(s->session_ctx, s->session);\n return 1;\n } else\n return 0;\n}', 'int SSL_CTX_remove_session(SSL_CTX *ctx, SSL_SESSION *c)\n{\n return remove_session_lock(ctx, c, 1);\n}', 'static int remove_session_lock(SSL_CTX *ctx, SSL_SESSION *c, int lck)\n{\n SSL_SESSION *r;\n int ret = 0;\n if ((c != NULL) && (c->session_id_length != 0)) {\n if (lck)\n CRYPTO_THREAD_write_lock(ctx->lock);\n if ((r = lh_SSL_SESSION_retrieve(ctx->sessions, c)) != NULL) {\n ret = 1;\n r = lh_SSL_SESSION_delete(ctx->sessions, r);\n SSL_SESSION_list_remove(ctx, r);\n }\n c->not_resumable = 1;\n if (lck)\n CRYPTO_THREAD_unlock(ctx->lock);\n if (ctx->remove_session_cb != NULL)\n ctx->remove_session_cb(ctx, c);\n if (ret)\n SSL_SESSION_free(r);\n } else\n ret = 0;\n return ret;\n}', 'DEFINE_LHASH_OF(SSL_SESSION)', 'void *OPENSSL_LH_delete(OPENSSL_LHASH *lh, const void *data)\n{\n unsigned long hash;\n OPENSSL_LH_NODE *nn, **rn;\n void *ret;\n lh->error = 0;\n rn = getrn(lh, data, &hash);\n if (*rn == NULL) {\n lh->num_no_delete++;\n return NULL;\n } else {\n nn = *rn;\n *rn = nn->next;\n ret = nn->data;\n OPENSSL_free(nn);\n lh->num_delete++;\n }\n lh->num_items--;\n if ((lh->num_nodes > MIN_NODES) &&\n (lh->down_load >= (lh->num_items * LH_LOAD_MULT / lh->num_nodes)))\n contract(lh);\n return ret;\n}'] |
17,482 | 0 | https://github.com/openssl/openssl/blob/46ef873f0b3c04b6415cddac5d4a7b27b53cc482/engines/e_ubsec.c/#L941 | static int ubsec_dh_generate_key (DH *dh)
{
int ret = 0,
random_bits = 0,
pub_key_len = 0,
priv_key_len = 0,
fd;
BIGNUM *pub_key = NULL;
BIGNUM *priv_key = NULL;
if (dh->priv_key == NULL)
{
priv_key = BN_new();
if (priv_key == NULL) goto err;
priv_key_len = BN_num_bits(dh->p);
bn_wexpand(priv_key, dh->p->top);
do
if (!BN_rand_range(priv_key, dh->p)) goto err;
while (BN_is_zero(priv_key));
random_bits = BN_num_bits(priv_key);
}
else
{
priv_key = dh->priv_key;
}
if (dh->pub_key == NULL)
{
pub_key = BN_new();
pub_key_len = BN_num_bits(dh->p);
bn_wexpand(pub_key, dh->p->top);
if(pub_key == NULL) goto err;
}
else
{
pub_key = dh->pub_key;
}
if ((fd = p_UBSEC_ubsec_open(UBSEC_KEY_DEVICE_NAME)) <= 0)
{
const DH_METHOD *meth;
ENGINEerr(UBSEC_F_UBSEC_INIT, UBSEC_R_UNIT_FAILURE);
meth = DH_OpenSSL();
ret = meth->generate_key(dh);
goto err;
}
if (p_UBSEC_diffie_hellman_generate_ioctl(fd,
(unsigned char *)priv_key->d, &priv_key_len,
(unsigned char *)pub_key->d, &pub_key_len,
(unsigned char *)dh->g->d, BN_num_bits(dh->g),
(unsigned char *)dh->p->d, BN_num_bits(dh->p),
0, 0, random_bits) != 0)
{
const DH_METHOD *meth;
ENGINEerr(UBSEC_F_UBSEC_DH_COMPUTE_KEY, UBSEC_R_REQUEST_FAILED);
p_UBSEC_ubsec_close(fd);
meth = DH_OpenSSL();
ret = meth->generate_key(dh);
goto err;
}
p_UBSEC_ubsec_close(fd);
dh->pub_key = pub_key;
dh->pub_key->top = (pub_key_len + BN_BITS2-1) / BN_BITS2;
dh->priv_key = priv_key;
dh->priv_key->top = (priv_key_len + BN_BITS2-1) / BN_BITS2;
ret = 1;
err:
return ret;
} | ['static int ubsec_dh_generate_key (DH *dh)\n {\n int ret = 0,\n random_bits = 0,\n pub_key_len = 0,\n priv_key_len = 0,\n fd;\n BIGNUM *pub_key = NULL;\n BIGNUM *priv_key = NULL;\n if (dh->priv_key == NULL)\n {\n priv_key = BN_new();\n if (priv_key == NULL) goto err;\n priv_key_len = BN_num_bits(dh->p);\n bn_wexpand(priv_key, dh->p->top);\n do\n if (!BN_rand_range(priv_key, dh->p)) goto err;\n while (BN_is_zero(priv_key));\n random_bits = BN_num_bits(priv_key);\n }\n else\n {\n priv_key = dh->priv_key;\n }\n if (dh->pub_key == NULL)\n {\n pub_key = BN_new();\n pub_key_len = BN_num_bits(dh->p);\n bn_wexpand(pub_key, dh->p->top);\n if(pub_key == NULL) goto err;\n }\n else\n {\n pub_key = dh->pub_key;\n }\n if ((fd = p_UBSEC_ubsec_open(UBSEC_KEY_DEVICE_NAME)) <= 0)\n {\n const DH_METHOD *meth;\n ENGINEerr(UBSEC_F_UBSEC_INIT, UBSEC_R_UNIT_FAILURE);\n meth = DH_OpenSSL();\n ret = meth->generate_key(dh);\n goto err;\n }\n if (p_UBSEC_diffie_hellman_generate_ioctl(fd,\n (unsigned char *)priv_key->d, &priv_key_len,\n (unsigned char *)pub_key->d, &pub_key_len,\n (unsigned char *)dh->g->d, BN_num_bits(dh->g),\n (unsigned char *)dh->p->d, BN_num_bits(dh->p),\n 0, 0, random_bits) != 0)\n {\n const DH_METHOD *meth;\n ENGINEerr(UBSEC_F_UBSEC_DH_COMPUTE_KEY, UBSEC_R_REQUEST_FAILED);\n p_UBSEC_ubsec_close(fd);\n meth = DH_OpenSSL();\n ret = meth->generate_key(dh);\n goto err;\n }\n p_UBSEC_ubsec_close(fd);\n dh->pub_key = pub_key;\n dh->pub_key->top = (pub_key_len + BN_BITS2-1) / BN_BITS2;\n dh->priv_key = priv_key;\n dh->priv_key->top = (priv_key_len + BN_BITS2-1) / BN_BITS2;\n ret = 1;\nerr:\n return ret;\n }', '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_num_bits(const BIGNUM *a)\n\t{\n\tint i = a->top - 1;\n\tbn_check_top(a);\n\tif (BN_is_zero(a)) return 0;\n\treturn ((i*BN_BITS2) + BN_num_bits_word(a->d[i]));\n\t}'] |
17,483 | 0 | https://github.com/libav/libav/blob/e5b0fc170f85b00f7dd0ac514918fb5c95253d39/libavcodec/bitstream.h/#L139 | static inline uint64_t get_val(BitstreamContext *bc, unsigned n)
{
#ifdef BITSTREAM_READER_LE
uint64_t ret = bc->bits & ((UINT64_C(1) << n) - 1);
bc->bits >>= n;
#else
uint64_t ret = bc->bits >> (64 - n);
bc->bits <<= n;
#endif
bc->bits_left -= n;
return ret;
} | ['static int decode_block(BinkAudioContext *s, float **out, int use_dct)\n{\n int ch, i, j, k;\n float q, quant[25];\n int width, coeff;\n BitstreamContext *bc = &s->bc;\n if (use_dct)\n bitstream_skip(bc, 2);\n for (ch = 0; ch < s->channels; ch++) {\n FFTSample *coeffs = out[ch];\n if (s->version_b) {\n if (bitstream_bits_left(bc) < 64)\n return AVERROR_INVALIDDATA;\n coeffs[0] = av_int2float(bitstream_read(bc, 32)) * s->root;\n coeffs[1] = av_int2float(bitstream_read(bc, 32)) * s->root;\n } else {\n if (bitstream_bits_left(bc) < 58)\n return AVERROR_INVALIDDATA;\n coeffs[0] = get_float(bc) * s->root;\n coeffs[1] = get_float(bc) * s->root;\n }\n if (bitstream_bits_left(bc) < s->num_bands * 8)\n return AVERROR_INVALIDDATA;\n for (i = 0; i < s->num_bands; i++) {\n int value = bitstream_read(bc, 8);\n quant[i] = quant_table[FFMIN(value, 95)];\n }\n k = 0;\n q = quant[0];\n i = 2;\n while (i < s->frame_len) {\n if (s->version_b) {\n j = i + 16;\n } else {\n int v = bitstream_read_bit(bc);\n if (v) {\n v = bitstream_read(bc, 4);\n j = i + rle_length_tab[v] * 8;\n } else {\n j = i + 8;\n }\n }\n j = FFMIN(j, s->frame_len);\n width = bitstream_read(bc, 4);\n if (width == 0) {\n memset(coeffs + i, 0, (j - i) * sizeof(*coeffs));\n i = j;\n while (s->bands[k] < i)\n q = quant[k++];\n } else {\n while (i < j) {\n if (s->bands[k] == i)\n q = quant[k++];\n coeff = bitstream_read(bc, width);\n if (coeff) {\n int v;\n v = bitstream_read_bit(bc);\n if (v)\n coeffs[i] = -q * coeff;\n else\n coeffs[i] = q * coeff;\n } else {\n coeffs[i] = 0.0f;\n }\n i++;\n }\n }\n }\n if (CONFIG_BINKAUDIO_DCT_DECODER && use_dct) {\n coeffs[0] /= 0.5;\n s->trans.dct.dct_calc(&s->trans.dct, coeffs);\n }\n else if (CONFIG_BINKAUDIO_RDFT_DECODER)\n s->trans.rdft.rdft_calc(&s->trans.rdft, coeffs);\n }\n for (ch = 0; ch < s->channels; ch++) {\n int j;\n int count = s->overlap_len * s->channels;\n if (!s->first) {\n j = ch;\n for (i = 0; i < s->overlap_len; i++, j += s->channels)\n out[ch][i] = (s->previous[ch][i] * (count - j) +\n out[ch][i] * j) / count;\n }\n memcpy(s->previous[ch], &out[ch][s->frame_len - s->overlap_len],\n s->overlap_len * sizeof(*s->previous[ch]));\n }\n s->first = 0;\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}'] |
17,484 | 0 | https://github.com/openssl/openssl/blob/1fac96e4d6484a517f2ebe99b72016726391723c/crypto/bn/bn_asm.c/#L551 | void bn_mul_comba8(BN_ULONG *r, BN_ULONG *a, BN_ULONG *b)
{
#ifdef BN_LLONG
BN_ULLONG t;
#else
BN_ULONG bl,bh;
#endif
BN_ULONG t1,t2;
BN_ULONG c1,c2,c3;
c1=0;
c2=0;
c3=0;
mul_add_c(a[0],b[0],c1,c2,c3);
r[0]=c1;
c1=0;
mul_add_c(a[0],b[1],c2,c3,c1);
mul_add_c(a[1],b[0],c2,c3,c1);
r[1]=c2;
c2=0;
mul_add_c(a[2],b[0],c3,c1,c2);
mul_add_c(a[1],b[1],c3,c1,c2);
mul_add_c(a[0],b[2],c3,c1,c2);
r[2]=c3;
c3=0;
mul_add_c(a[0],b[3],c1,c2,c3);
mul_add_c(a[1],b[2],c1,c2,c3);
mul_add_c(a[2],b[1],c1,c2,c3);
mul_add_c(a[3],b[0],c1,c2,c3);
r[3]=c1;
c1=0;
mul_add_c(a[4],b[0],c2,c3,c1);
mul_add_c(a[3],b[1],c2,c3,c1);
mul_add_c(a[2],b[2],c2,c3,c1);
mul_add_c(a[1],b[3],c2,c3,c1);
mul_add_c(a[0],b[4],c2,c3,c1);
r[4]=c2;
c2=0;
mul_add_c(a[0],b[5],c3,c1,c2);
mul_add_c(a[1],b[4],c3,c1,c2);
mul_add_c(a[2],b[3],c3,c1,c2);
mul_add_c(a[3],b[2],c3,c1,c2);
mul_add_c(a[4],b[1],c3,c1,c2);
mul_add_c(a[5],b[0],c3,c1,c2);
r[5]=c3;
c3=0;
mul_add_c(a[6],b[0],c1,c2,c3);
mul_add_c(a[5],b[1],c1,c2,c3);
mul_add_c(a[4],b[2],c1,c2,c3);
mul_add_c(a[3],b[3],c1,c2,c3);
mul_add_c(a[2],b[4],c1,c2,c3);
mul_add_c(a[1],b[5],c1,c2,c3);
mul_add_c(a[0],b[6],c1,c2,c3);
r[6]=c1;
c1=0;
mul_add_c(a[0],b[7],c2,c3,c1);
mul_add_c(a[1],b[6],c2,c3,c1);
mul_add_c(a[2],b[5],c2,c3,c1);
mul_add_c(a[3],b[4],c2,c3,c1);
mul_add_c(a[4],b[3],c2,c3,c1);
mul_add_c(a[5],b[2],c2,c3,c1);
mul_add_c(a[6],b[1],c2,c3,c1);
mul_add_c(a[7],b[0],c2,c3,c1);
r[7]=c2;
c2=0;
mul_add_c(a[7],b[1],c3,c1,c2);
mul_add_c(a[6],b[2],c3,c1,c2);
mul_add_c(a[5],b[3],c3,c1,c2);
mul_add_c(a[4],b[4],c3,c1,c2);
mul_add_c(a[3],b[5],c3,c1,c2);
mul_add_c(a[2],b[6],c3,c1,c2);
mul_add_c(a[1],b[7],c3,c1,c2);
r[8]=c3;
c3=0;
mul_add_c(a[2],b[7],c1,c2,c3);
mul_add_c(a[3],b[6],c1,c2,c3);
mul_add_c(a[4],b[5],c1,c2,c3);
mul_add_c(a[5],b[4],c1,c2,c3);
mul_add_c(a[6],b[3],c1,c2,c3);
mul_add_c(a[7],b[2],c1,c2,c3);
r[9]=c1;
c1=0;
mul_add_c(a[7],b[3],c2,c3,c1);
mul_add_c(a[6],b[4],c2,c3,c1);
mul_add_c(a[5],b[5],c2,c3,c1);
mul_add_c(a[4],b[6],c2,c3,c1);
mul_add_c(a[3],b[7],c2,c3,c1);
r[10]=c2;
c2=0;
mul_add_c(a[4],b[7],c3,c1,c2);
mul_add_c(a[5],b[6],c3,c1,c2);
mul_add_c(a[6],b[5],c3,c1,c2);
mul_add_c(a[7],b[4],c3,c1,c2);
r[11]=c3;
c3=0;
mul_add_c(a[7],b[5],c1,c2,c3);
mul_add_c(a[6],b[6],c1,c2,c3);
mul_add_c(a[5],b[7],c1,c2,c3);
r[12]=c1;
c1=0;
mul_add_c(a[6],b[7],c2,c3,c1);
mul_add_c(a[7],b[6],c2,c3,c1);
r[13]=c2;
c2=0;
mul_add_c(a[7],b[7],c3,c1,c2);
r[14]=c3;
r[15]=c1;
} | ['int BN_mod_exp_simple(BIGNUM *r, BIGNUM *a, BIGNUM *p, BIGNUM *m,\n\t BN_CTX *ctx)\n\t{\n\tint i,j,bits,ret=0,wstart,wend,window,wvalue,ts=0;\n\tint start=1;\n\tBIGNUM *d;\n\tBIGNUM val[TABLE_SIZE];\n\td= &(ctx->bn[ctx->tos++]);\n\tbits=BN_num_bits(p);\n\tif (bits == 0)\n\t\t{\n\t\tBN_one(r);\n\t\treturn(1);\n\t\t}\n\tBN_init(&(val[0]));\n\tts=1;\n\tif (!BN_mod(&(val[0]),a,m,ctx)) goto err;\n\tif (!BN_mod_mul(d,&(val[0]),&(val[0]),m,ctx))\n\t\tgoto err;\n\tif (bits <= 17)\n\t\twindow=1;\n\telse if (bits >= 256)\n\t\twindow=5;\n\telse if (bits >= 128)\n\t\twindow=4;\n\telse\n\t\twindow=3;\n\tj=1<<(window-1);\n\tfor (i=1; i<j; i++)\n\t\t{\n\t\tBN_init(&(val[i]));\n\t\tif (!BN_mod_mul(&(val[i]),&(val[i-1]),d,m,ctx))\n\t\t\tgoto err;\n\t\t}\n\tts=i;\n\tstart=1;\n\twvalue=0;\n\twstart=bits-1;\n\twend=0;\n\tif (!BN_one(r)) goto err;\n\tfor (;;)\n\t\t{\n\t\tif (BN_is_bit_set(p,wstart) == 0)\n\t\t\t{\n\t\t\tif (!start)\n\t\t\t\tif (!BN_mod_mul(r,r,r,m,ctx))\n\t\t\t\tgoto err;\n\t\t\tif (wstart == 0) break;\n\t\t\twstart--;\n\t\t\tcontinue;\n\t\t\t}\n\t\tj=wstart;\n\t\twvalue=1;\n\t\twend=0;\n\t\tfor (i=1; i<window; i++)\n\t\t\t{\n\t\t\tif (wstart-i < 0) break;\n\t\t\tif (BN_is_bit_set(p,wstart-i))\n\t\t\t\t{\n\t\t\t\twvalue<<=(i-wend);\n\t\t\t\twvalue|=1;\n\t\t\t\twend=i;\n\t\t\t\t}\n\t\t\t}\n\t\tj=wend+1;\n\t\tif (!start)\n\t\t\tfor (i=0; i<j; i++)\n\t\t\t\t{\n\t\t\t\tif (!BN_mod_mul(r,r,r,m,ctx))\n\t\t\t\t\tgoto err;\n\t\t\t\t}\n\t\tif (!BN_mod_mul(r,r,&(val[wvalue>>1]),m,ctx))\n\t\t\tgoto err;\n\t\twstart-=wend+1;\n\t\twvalue=0;\n\t\tstart=0;\n\t\tif (wstart < 0) break;\n\t\t}\n\tret=1;\nerr:\n\tctx->tos--;\n\tfor (i=0; i<ts; i++)\n\t\tBN_clear_free(&(val[i]));\n\treturn(ret);\n\t}', 'int BN_mod(BIGNUM *rem, BIGNUM *m, BIGNUM *d, BN_CTX *ctx)\n\t{\n#if 0\n\tint i,nm,nd;\n\tBIGNUM *dv;\n\tif (BN_ucmp(m,d) < 0)\n\t\treturn((BN_copy(rem,m) == NULL)?0:1);\n\tdv= &(ctx->bn[ctx->tos]);\n\tif (!BN_copy(rem,m)) return(0);\n\tnm=BN_num_bits(rem);\n\tnd=BN_num_bits(d);\n\tif (!BN_lshift(dv,d,nm-nd)) return(0);\n\tfor (i=nm-nd; i>=0; i--)\n\t\t{\n\t\tif (BN_cmp(rem,dv) >= 0)\n\t\t\t{\n\t\t\tif (!BN_sub(rem,rem,dv)) return(0);\n\t\t\t}\n\t\tif (!BN_rshift1(dv,dv)) return(0);\n\t\t}\n\treturn(1);\n#else\n\treturn(BN_div(NULL,rem,m,d,ctx));\n#endif\n\t}', 'int BN_div(BIGNUM *dv, BIGNUM *rm, BIGNUM *num, BIGNUM *divisor,\n\t BN_CTX *ctx)\n\t{\n\tint norm_shift,i,j,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(num);\n\tbn_check_top(divisor);\n\tif (BN_is_zero(divisor))\n\t\t{\n\t\tBNerr(BN_F_BN_DIV,BN_R_DIV_BY_ZERO);\n\t\treturn(0);\n\t\t}\n\tif (BN_ucmp(num,divisor) < 0)\n\t\t{\n\t\tif (rm != NULL)\n\t\t\t{ if (BN_copy(rm,num) == NULL) return(0); }\n\t\tif (dv != NULL) BN_zero(dv);\n\t\treturn(1);\n\t\t}\n\ttmp= &(ctx->bn[ctx->tos]);\n\ttmp->neg=0;\n\tsnum= &(ctx->bn[ctx->tos+1]);\n\tsdiv= &(ctx->bn[ctx->tos+2]);\n\tif (dv == NULL)\n\t\tres= &(ctx->bn[ctx->tos+3]);\n\telse\tres=dv;\n\tnorm_shift=BN_BITS2-((BN_num_bits(divisor))%BN_BITS2);\n\tBN_lshift(sdiv,divisor,norm_shift);\n\tsdiv->neg=0;\n\tnorm_shift+=BN_BITS2;\n\tBN_lshift(snum,num,norm_shift);\n\tsnum->neg=0;\n\tdiv_n=sdiv->top;\n\tnum_n=snum->top;\n\tloop=num_n-div_n;\n\tBN_init(&wnum);\n\twnum.d=\t &(snum->d[loop]);\n\twnum.top= div_n;\n\twnum.max= snum->max+1;\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\tif (!BN_usub(&wnum,&wnum,sdiv)) goto err;\n\t\t*resp=1;\n\t\tres->d[res->top-1]=1;\n\t\t}\n\telse\n\t\tres->top--;\n\tresp--;\n\tfor (i=0; i<loop-1; i++)\n\t\t{\n\t\tBN_ULONG q,n0,n1;\n\t\tBN_ULONG l0;\n\t\twnum.d--; wnum.top++;\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\tq=bn_div_words(n0,n1,d0);\n\t\t{\n#ifdef BN_LLONG\n\t\tBN_ULLONG t1,t2,rem;\n\t\tt1=((BN_ULLONG)n0<<BN_BITS2)|n1;\n\t\tfor (;;)\n\t\t\t{\n\t\t\tt2=(BN_ULLONG)d1*q;\n\t\t\trem=t1-(BN_ULLONG)q*d0;\n\t\t\tif ((rem>>BN_BITS2) ||\n\t\t\t\t(t2 <= ((BN_ULLONG)(rem<<BN_BITS2)+wnump[-2])))\n\t\t\t\tbreak;\n\t\t\tq--;\n\t\t\t}\n#else\n\t\tBN_ULONG t1l,t1h,t2l,t2h,t3l,t3h,ql,qh,t3t;\n\t\tt1h=n0;\n\t\tt1l=n1;\n\t\tfor (;;)\n\t\t\t{\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\tt3t=LBITS(d0); t3h=HBITS(d0);\n\t\t\tmul64(t3t,t3h,ql,qh);\n\t\t\tt3l=(t1l-t3t)&BN_MASK2;\n\t\t\tif (t3l > t1l) t3h++;\n\t\t\tt3h=(t1h-t3h)&BN_MASK2;\n\t\t\tif (t3h) break;\n\t\t\tif (t2h < t3l) break;\n\t\t\tif ((t2h == t3l) && (t2l <= wnump[-2])) break;\n\t\t\tq--;\n\t\t\t}\n#endif\n\t\t}\n\t\tl0=bn_mul_words(tmp->d,sdiv->d,div_n,q);\n\t\ttmp->d[div_n]=l0;\n\t\tfor (j=div_n+1; j>0; j--)\n\t\t\tif (tmp->d[j-1]) break;\n\t\ttmp->top=j;\n\t\tj=wnum.top;\n\t\tBN_sub(&wnum,&wnum,tmp);\n\t\tsnum->top=snum->top+wnum.top-j;\n\t\tif (wnum.neg)\n\t\t\t{\n\t\t\tq--;\n\t\t\tj=wnum.top;\n\t\t\tBN_add(&wnum,&wnum,sdiv);\n\t\t\tsnum->top+=wnum.top-j;\n\t\t\t}\n\t\t*(resp--)=q;\n\t\twnump--;\n\t\t}\n\tif (rm != NULL)\n\t\t{\n\t\tBN_rshift(rm,snum,norm_shift);\n\t\trm->neg=num->neg;\n\t\t}\n\treturn(1);\nerr:\n\treturn(0);\n\t}', 'int BN_mod_mul(BIGNUM *ret, BIGNUM *a, BIGNUM *b, BIGNUM *m, BN_CTX *ctx)\n\t{\n\tBIGNUM *t;\n\tint r=0;\n\tbn_check_top(a);\n\tbn_check_top(b);\n\tbn_check_top(m);\n\tt= &(ctx->bn[ctx->tos++]);\n\tif (a == b)\n\t\t{ if (!BN_sqr(t,a,ctx)) goto err; }\n\telse\n\t\t{ if (!BN_mul(t,a,b,ctx)) goto err; }\n\tif (!BN_mod(ret,t,m,ctx)) goto err;\n\tr=1;\nerr:\n\tctx->tos--;\n\treturn(r);\n\t}', 'int BN_mul(BIGNUM *r, BIGNUM *a, BIGNUM *b, BN_CTX *ctx)\n\t{\n\tint top,al,bl;\n\tBIGNUM *rr;\n#ifdef BN_RECURSION\n\tBIGNUM *t;\n\tint i,j,k;\n#endif\n#ifdef BN_COUNT\nprintf("BN_mul %d * %d\\n",a->top,b->top);\n#endif\n\tbn_check_top(a);\n\tbn_check_top(b);\n\tbn_check_top(r);\n\tal=a->top;\n\tbl=b->top;\n\tr->neg=a->neg^b->neg;\n\tif ((al == 0) || (bl == 0))\n\t\t{\n\t\tBN_zero(r);\n\t\treturn(1);\n\t\t}\n\ttop=al+bl;\n\tif ((r == a) || (r == b))\n\t\trr= &(ctx->bn[ctx->tos+1]);\n\telse\n\t\trr=r;\n#if defined(BN_MUL_COMBA) || defined(BN_RECURSION)\n\tif (al == bl)\n\t\t{\n# ifdef BN_MUL_COMBA\n if (al == 8)\n\t\t\t{\n\t\t\tif (bn_wexpand(rr,16) == NULL) return(0);\n\t\t\tr->top=16;\n\t\t\tbn_mul_comba8(rr->d,a->d,b->d);\n\t\t\tgoto end;\n\t\t\t}\n\t\telse\n# endif\n#ifdef BN_RECURSION\n\t\tif (al < BN_MULL_SIZE_NORMAL)\n#endif\n\t\t\t{\n\t\t\tif (bn_wexpand(rr,top) == NULL) return(0);\n\t\t\trr->top=top;\n\t\t\tbn_mul_normal(rr->d,a->d,al,b->d,bl);\n\t\t\tgoto end;\n\t\t\t}\n# ifdef BN_RECURSION\n\t\tgoto symetric;\n# endif\n\t\t}\n#endif\n#ifdef BN_RECURSION\n\telse if ((al < BN_MULL_SIZE_NORMAL) || (bl < BN_MULL_SIZE_NORMAL))\n\t\t{\n\t\tif (bn_wexpand(rr,top) == NULL) return(0);\n\t\trr->top=top;\n\t\tbn_mul_normal(rr->d,a->d,al,b->d,bl);\n\t\tgoto end;\n\t\t}\n\telse\n\t\t{\n\t\ti=(al-bl);\n\t\tif ((i == 1) && !BN_get_flags(b,BN_FLG_STATIC_DATA))\n\t\t\t{\n\t\t\tbn_wexpand(b,al);\n\t\t\tb->d[bl]=0;\n\t\t\tbl++;\n\t\t\tgoto symetric;\n\t\t\t}\n\t\telse if ((i == -1) && !BN_get_flags(a,BN_FLG_STATIC_DATA))\n\t\t\t{\n\t\t\tbn_wexpand(a,bl);\n\t\t\ta->d[al]=0;\n\t\t\tal++;\n\t\t\tgoto symetric;\n\t\t\t}\n\t\t}\n#endif\n\tif (bn_wexpand(rr,top) == NULL) return(0);\n\trr->top=top;\n\tbn_mul_normal(rr->d,a->d,al,b->d,bl);\n#ifdef BN_RECURSION\n\tif (0)\n\t\t{\nsymetric:\n\t\tj=BN_num_bits_word((BN_ULONG)al);\n\t\tj=1<<(j-1);\n\t\tk=j+j;\n\t\tt= &(ctx->bn[ctx->tos]);\n\t\tif (al == j)\n\t\t\t{\n\t\t\tbn_wexpand(t,k*2);\n\t\t\tbn_wexpand(rr,k*2);\n\t\t\tbn_mul_recursive(rr->d,a->d,b->d,al,t->d);\n\t\t\t}\n\t\telse\n\t\t\t{\n\t\t\tbn_wexpand(a,k);\n\t\t\tbn_wexpand(b,k);\n\t\t\tbn_wexpand(t,k*4);\n\t\t\tbn_wexpand(rr,k*4);\n\t\t\tfor (i=a->top; i<k; i++)\n\t\t\t\ta->d[i]=0;\n\t\t\tfor (i=b->top; i<k; i++)\n\t\t\t\tb->d[i]=0;\n\t\t\tbn_mul_part_recursive(rr->d,a->d,b->d,al-j,j,t->d);\n\t\t\t}\n\t\trr->top=top;\n\t\t}\n#endif\n#if defined(BN_MUL_COMBA) || defined(BN_RECURSION)\nend:\n#endif\n\tbn_fix_top(rr);\n\tif (r != rr) BN_copy(r,rr);\n\treturn(1);\n\t}', 'void bn_mul_recursive(BN_ULONG *r, BN_ULONG *a, BN_ULONG *b, int n2,\n\t BN_ULONG *t)\n\t{\n\tint n=n2/2,c1,c2;\n\tunsigned int neg,zero;\n\tBN_ULONG ln,lo,*p;\n#ifdef BN_COUNT\nprintf(" bn_mul_recursive %d * %d\\n",n2,n2);\n#endif\n#ifdef BN_MUL_COMBA\n if (n2 == 8)\n\t\t{\n\t\tbn_mul_comba8(r,a,b);\n\t\treturn;\n\t\t}\n#endif\n\tif (n2 < BN_MUL_RECURSIVE_SIZE_NORMAL)\n\t\t{\n\t\tbn_mul_normal(r,a,n2,b,n2);\n\t\treturn;\n\t\t}\n\tc1=bn_cmp_words(a,&(a[n]),n);\n\tc2=bn_cmp_words(&(b[n]),b,n);\n\tzero=neg=0;\n\tswitch (c1*3+c2)\n\t\t{\n\tcase -4:\n\t\tbn_sub_words(t, &(a[n]),a, n);\n\t\tbn_sub_words(&(t[n]),b, &(b[n]),n);\n\t\tbreak;\n\tcase -3:\n\t\tzero=1;\n\t\tbreak;\n\tcase -2:\n\t\tbn_sub_words(t, &(a[n]),a, n);\n\t\tbn_sub_words(&(t[n]),&(b[n]),b, n);\n\t\tneg=1;\n\t\tbreak;\n\tcase -1:\n\tcase 0:\n\tcase 1:\n\t\tzero=1;\n\t\tbreak;\n\tcase 2:\n\t\tbn_sub_words(t, a, &(a[n]),n);\n\t\tbn_sub_words(&(t[n]),b, &(b[n]),n);\n\t\tneg=1;\n\t\tbreak;\n\tcase 3:\n\t\tzero=1;\n\t\tbreak;\n\tcase 4:\n\t\tbn_sub_words(t, a, &(a[n]),n);\n\t\tbn_sub_words(&(t[n]),&(b[n]),b, n);\n\t\tbreak;\n\t\t}\n#ifdef BN_MUL_COMBA\n\tif (n == 4)\n\t\t{\n\t\tif (!zero)\n\t\t\tbn_mul_comba4(&(t[n2]),t,&(t[n]));\n\t\telse\n\t\t\tmemset(&(t[n2]),0,8*sizeof(BN_ULONG));\n\t\tbn_mul_comba4(r,a,b);\n\t\tbn_mul_comba4(&(r[n2]),&(a[n]),&(b[n]));\n\t\t}\n\telse if (n == 8)\n\t\t{\n\t\tif (!zero)\n\t\t\tbn_mul_comba8(&(t[n2]),t,&(t[n]));\n\t\telse\n\t\t\tmemset(&(t[n2]),0,16*sizeof(BN_ULONG));\n\t\tbn_mul_comba8(r,a,b);\n\t\tbn_mul_comba8(&(r[n2]),&(a[n]),&(b[n]));\n\t\t}\n\telse\n#endif\n\t\t{\n\t\tp= &(t[n2*2]);\n\t\tif (!zero)\n\t\t\tbn_mul_recursive(&(t[n2]),t,&(t[n]),n,p);\n\t\telse\n\t\t\tmemset(&(t[n2]),0,n2*sizeof(BN_ULONG));\n\t\tbn_mul_recursive(r,a,b,n,p);\n\t\tbn_mul_recursive(&(r[n2]),&(a[n]),&(b[n]),n,p);\n\t\t}\n\tc1=(int)(bn_add_words(t,r,&(r[n2]),n2));\n\tif (neg)\n\t\t{\n\t\tc1-=(int)(bn_sub_words(&(t[n2]),t,&(t[n2]),n2));\n\t\t}\n\telse\n\t\t{\n\t\tc1+=(int)(bn_add_words(&(t[n2]),&(t[n2]),t,n2));\n\t\t}\n\tc1+=(int)(bn_add_words(&(r[n]),&(r[n]),&(t[n2]),n2));\n\tif (c1)\n\t\t{\n\t\tp= &(r[n+n2]);\n\t\tlo= *p;\n\t\tln=(lo+c1)&BN_MASK2;\n\t\t*p=ln;\n\t\tif (ln < (BN_ULONG)c1)\n\t\t\t{\n\t\t\tdo\t{\n\t\t\t\tp++;\n\t\t\t\tlo= *p;\n\t\t\t\tln=(lo+1)&BN_MASK2;\n\t\t\t\t*p=ln;\n\t\t\t\t} while (ln == 0);\n\t\t\t}\n\t\t}\n\t}', 'void bn_mul_comba8(BN_ULONG *r, BN_ULONG *a, BN_ULONG *b)\n\t{\n#ifdef BN_LLONG\n\tBN_ULLONG t;\n#else\n\tBN_ULONG bl,bh;\n#endif\n\tBN_ULONG t1,t2;\n\tBN_ULONG c1,c2,c3;\n\tc1=0;\n\tc2=0;\n\tc3=0;\n\tmul_add_c(a[0],b[0],c1,c2,c3);\n\tr[0]=c1;\n\tc1=0;\n\tmul_add_c(a[0],b[1],c2,c3,c1);\n\tmul_add_c(a[1],b[0],c2,c3,c1);\n\tr[1]=c2;\n\tc2=0;\n\tmul_add_c(a[2],b[0],c3,c1,c2);\n\tmul_add_c(a[1],b[1],c3,c1,c2);\n\tmul_add_c(a[0],b[2],c3,c1,c2);\n\tr[2]=c3;\n\tc3=0;\n\tmul_add_c(a[0],b[3],c1,c2,c3);\n\tmul_add_c(a[1],b[2],c1,c2,c3);\n\tmul_add_c(a[2],b[1],c1,c2,c3);\n\tmul_add_c(a[3],b[0],c1,c2,c3);\n\tr[3]=c1;\n\tc1=0;\n\tmul_add_c(a[4],b[0],c2,c3,c1);\n\tmul_add_c(a[3],b[1],c2,c3,c1);\n\tmul_add_c(a[2],b[2],c2,c3,c1);\n\tmul_add_c(a[1],b[3],c2,c3,c1);\n\tmul_add_c(a[0],b[4],c2,c3,c1);\n\tr[4]=c2;\n\tc2=0;\n\tmul_add_c(a[0],b[5],c3,c1,c2);\n\tmul_add_c(a[1],b[4],c3,c1,c2);\n\tmul_add_c(a[2],b[3],c3,c1,c2);\n\tmul_add_c(a[3],b[2],c3,c1,c2);\n\tmul_add_c(a[4],b[1],c3,c1,c2);\n\tmul_add_c(a[5],b[0],c3,c1,c2);\n\tr[5]=c3;\n\tc3=0;\n\tmul_add_c(a[6],b[0],c1,c2,c3);\n\tmul_add_c(a[5],b[1],c1,c2,c3);\n\tmul_add_c(a[4],b[2],c1,c2,c3);\n\tmul_add_c(a[3],b[3],c1,c2,c3);\n\tmul_add_c(a[2],b[4],c1,c2,c3);\n\tmul_add_c(a[1],b[5],c1,c2,c3);\n\tmul_add_c(a[0],b[6],c1,c2,c3);\n\tr[6]=c1;\n\tc1=0;\n\tmul_add_c(a[0],b[7],c2,c3,c1);\n\tmul_add_c(a[1],b[6],c2,c3,c1);\n\tmul_add_c(a[2],b[5],c2,c3,c1);\n\tmul_add_c(a[3],b[4],c2,c3,c1);\n\tmul_add_c(a[4],b[3],c2,c3,c1);\n\tmul_add_c(a[5],b[2],c2,c3,c1);\n\tmul_add_c(a[6],b[1],c2,c3,c1);\n\tmul_add_c(a[7],b[0],c2,c3,c1);\n\tr[7]=c2;\n\tc2=0;\n\tmul_add_c(a[7],b[1],c3,c1,c2);\n\tmul_add_c(a[6],b[2],c3,c1,c2);\n\tmul_add_c(a[5],b[3],c3,c1,c2);\n\tmul_add_c(a[4],b[4],c3,c1,c2);\n\tmul_add_c(a[3],b[5],c3,c1,c2);\n\tmul_add_c(a[2],b[6],c3,c1,c2);\n\tmul_add_c(a[1],b[7],c3,c1,c2);\n\tr[8]=c3;\n\tc3=0;\n\tmul_add_c(a[2],b[7],c1,c2,c3);\n\tmul_add_c(a[3],b[6],c1,c2,c3);\n\tmul_add_c(a[4],b[5],c1,c2,c3);\n\tmul_add_c(a[5],b[4],c1,c2,c3);\n\tmul_add_c(a[6],b[3],c1,c2,c3);\n\tmul_add_c(a[7],b[2],c1,c2,c3);\n\tr[9]=c1;\n\tc1=0;\n\tmul_add_c(a[7],b[3],c2,c3,c1);\n\tmul_add_c(a[6],b[4],c2,c3,c1);\n\tmul_add_c(a[5],b[5],c2,c3,c1);\n\tmul_add_c(a[4],b[6],c2,c3,c1);\n\tmul_add_c(a[3],b[7],c2,c3,c1);\n\tr[10]=c2;\n\tc2=0;\n\tmul_add_c(a[4],b[7],c3,c1,c2);\n\tmul_add_c(a[5],b[6],c3,c1,c2);\n\tmul_add_c(a[6],b[5],c3,c1,c2);\n\tmul_add_c(a[7],b[4],c3,c1,c2);\n\tr[11]=c3;\n\tc3=0;\n\tmul_add_c(a[7],b[5],c1,c2,c3);\n\tmul_add_c(a[6],b[6],c1,c2,c3);\n\tmul_add_c(a[5],b[7],c1,c2,c3);\n\tr[12]=c1;\n\tc1=0;\n\tmul_add_c(a[6],b[7],c2,c3,c1);\n\tmul_add_c(a[7],b[6],c2,c3,c1);\n\tr[13]=c2;\n\tc2=0;\n\tmul_add_c(a[7],b[7],c3,c1,c2);\n\tr[14]=c3;\n\tr[15]=c1;\n\t}'] |
17,485 | 0 | https://github.com/openssl/openssl/blob/6fc1748ec65c94c195d02b59556434e36a5f7651/ssl/packet_locl.h/#L36 | static ossl_inline void packet_forward(PACKET *pkt, size_t len)
{
pkt->curr += len;
pkt->remaining -= len;
} | ['static int validate_ccs(BIO *wbio)\n{\n PACKET pkt;\n long len;\n unsigned char *data;\n unsigned int u;\n len = BIO_get_mem_data(wbio, (char **)&data);\n if (!PACKET_buf_init(&pkt, data, len))\n return 0;\n if (!PACKET_get_1(&pkt, &u) || u != SSL3_RT_CHANGE_CIPHER_SPEC)\n return 0;\n if (!PACKET_get_net_2(&pkt, &u) || u != DTLS1_BAD_VER)\n return 0;\n if (!PACKET_forward(&pkt, DTLS1_RT_HEADER_LENGTH - 3))\n return 0;\n if (!PACKET_get_1(&pkt, &u) || u != SSL3_MT_CCS)\n return 0;\n if (!PACKET_get_net_2(&pkt, &u) || u != 0x0002)\n return 0;\n if (!PACKET_get_1(&pkt, &u) || u != SSL3_RT_HANDSHAKE)\n return 0;\n if (!PACKET_get_net_2(&pkt, &u) || u != DTLS1_BAD_VER)\n return 0;\n if (!PACKET_get_net_2(&pkt, &u) || u != 0x0001)\n return 0;\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}'] |
17,486 | 0 | https://github.com/openssl/openssl/blob/2ac68bd6f14f27504cf9ae86e714030083de732b/ssl/statem/statem_clnt.c/#L2574 | int tls_construct_client_verify(SSL *s)
{
unsigned char *p;
EVP_PKEY *pkey;
const EVP_MD *md = s->s3->tmp.md[s->cert->key - s->cert->pkeys];
EVP_MD_CTX *mctx;
unsigned u = 0;
unsigned long n = 0;
long hdatalen = 0;
void *hdata;
mctx = EVP_MD_CTX_new();
if (mctx == NULL) {
SSLerr(SSL_F_TLS_CONSTRUCT_CLIENT_VERIFY, ERR_R_MALLOC_FAILURE);
goto err;
}
p = ssl_handshake_start(s);
pkey = s->cert->key->privatekey;
hdatalen = BIO_get_mem_data(s->s3->handshake_buffer, &hdata);
if (hdatalen <= 0) {
SSLerr(SSL_F_TLS_CONSTRUCT_CLIENT_VERIFY, ERR_R_INTERNAL_ERROR);
goto err;
}
if (SSL_USE_SIGALGS(s)) {
if (!tls12_get_sigandhash(p, pkey, md)) {
SSLerr(SSL_F_TLS_CONSTRUCT_CLIENT_VERIFY, ERR_R_INTERNAL_ERROR);
goto err;
}
p += 2;
n = 2;
}
#ifdef SSL_DEBUG
fprintf(stderr, "Using client alg %s\n", EVP_MD_name(md));
#endif
if (!EVP_SignInit_ex(mctx, md, NULL)
|| !EVP_SignUpdate(mctx, hdata, hdatalen)
|| (s->version == SSL3_VERSION
&& !EVP_MD_CTX_ctrl(mctx, EVP_CTRL_SSL3_MASTER_SECRET,
s->session->master_key_length,
s->session->master_key))
|| !EVP_SignFinal(mctx, p + 2, &u, pkey)) {
SSLerr(SSL_F_TLS_CONSTRUCT_CLIENT_VERIFY, ERR_R_EVP_LIB);
goto err;
}
#ifndef OPENSSL_NO_GOST
{
int pktype = EVP_PKEY_id(pkey);
if (pktype == NID_id_GostR3410_2001
|| pktype == NID_id_GostR3410_2012_256
|| pktype == NID_id_GostR3410_2012_512)
BUF_reverse(p + 2, NULL, u);
}
#endif
s2n(u, p);
n += u + 2;
if (!ssl3_digest_cached_records(s, 0))
goto err;
if (!ssl_set_handshake_header(s, SSL3_MT_CERTIFICATE_VERIFY, n)) {
SSLerr(SSL_F_TLS_CONSTRUCT_CLIENT_VERIFY, ERR_R_INTERNAL_ERROR);
goto err;
}
EVP_MD_CTX_free(mctx);
return 1;
err:
EVP_MD_CTX_free(mctx);
return 0;
} | ['int tls_construct_client_verify(SSL *s)\n{\n unsigned char *p;\n EVP_PKEY *pkey;\n const EVP_MD *md = s->s3->tmp.md[s->cert->key - s->cert->pkeys];\n EVP_MD_CTX *mctx;\n unsigned u = 0;\n unsigned long n = 0;\n long hdatalen = 0;\n void *hdata;\n mctx = EVP_MD_CTX_new();\n if (mctx == NULL) {\n SSLerr(SSL_F_TLS_CONSTRUCT_CLIENT_VERIFY, ERR_R_MALLOC_FAILURE);\n goto err;\n }\n p = ssl_handshake_start(s);\n pkey = s->cert->key->privatekey;\n hdatalen = BIO_get_mem_data(s->s3->handshake_buffer, &hdata);\n if (hdatalen <= 0) {\n SSLerr(SSL_F_TLS_CONSTRUCT_CLIENT_VERIFY, ERR_R_INTERNAL_ERROR);\n goto err;\n }\n if (SSL_USE_SIGALGS(s)) {\n if (!tls12_get_sigandhash(p, pkey, md)) {\n SSLerr(SSL_F_TLS_CONSTRUCT_CLIENT_VERIFY, ERR_R_INTERNAL_ERROR);\n goto err;\n }\n p += 2;\n n = 2;\n }\n#ifdef SSL_DEBUG\n fprintf(stderr, "Using client alg %s\\n", EVP_MD_name(md));\n#endif\n if (!EVP_SignInit_ex(mctx, md, NULL)\n || !EVP_SignUpdate(mctx, hdata, hdatalen)\n || (s->version == SSL3_VERSION\n && !EVP_MD_CTX_ctrl(mctx, EVP_CTRL_SSL3_MASTER_SECRET,\n s->session->master_key_length,\n s->session->master_key))\n || !EVP_SignFinal(mctx, p + 2, &u, pkey)) {\n SSLerr(SSL_F_TLS_CONSTRUCT_CLIENT_VERIFY, ERR_R_EVP_LIB);\n goto err;\n }\n#ifndef OPENSSL_NO_GOST\n {\n int pktype = EVP_PKEY_id(pkey);\n if (pktype == NID_id_GostR3410_2001\n || pktype == NID_id_GostR3410_2012_256\n || pktype == NID_id_GostR3410_2012_512)\n BUF_reverse(p + 2, NULL, u);\n }\n#endif\n s2n(u, p);\n n += u + 2;\n if (!ssl3_digest_cached_records(s, 0))\n goto err;\n if (!ssl_set_handshake_header(s, SSL3_MT_CERTIFICATE_VERIFY, n)) {\n SSLerr(SSL_F_TLS_CONSTRUCT_CLIENT_VERIFY, ERR_R_INTERNAL_ERROR);\n goto err;\n }\n EVP_MD_CTX_free(mctx);\n return 1;\n err:\n EVP_MD_CTX_free(mctx);\n return 0;\n}', 'EVP_MD_CTX *EVP_MD_CTX_new(void)\n{\n return OPENSSL_zalloc(sizeof(EVP_MD_CTX));\n}', 'void *CRYPTO_zalloc(size_t num, const char *file, int line)\n{\n void *ret = CRYPTO_malloc(num, file, line);\n if (ret != NULL)\n memset(ret, 0, num);\n return ret;\n}', 'void *CRYPTO_malloc(size_t num, const char *file, int line)\n{\n void *ret = NULL;\n if (malloc_impl != NULL && malloc_impl != CRYPTO_malloc)\n return malloc_impl(num, file, line);\n if (num <= 0)\n return NULL;\n allow_customize = 0;\n#ifndef OPENSSL_NO_CRYPTO_MDEBUG\n if (call_malloc_debug) {\n CRYPTO_mem_debug_malloc(NULL, num, 0, file, line);\n ret = malloc(num);\n CRYPTO_mem_debug_malloc(ret, num, 1, file, line);\n } else {\n ret = malloc(num);\n }\n#else\n osslargused(file); osslargused(line);\n ret = malloc(num);\n#endif\n return ret;\n}', 'long BIO_ctrl(BIO *b, int cmd, long larg, void *parg)\n{\n long ret;\n long (*cb) (BIO *, int, const char *, int, long, long);\n if (b == NULL)\n return (0);\n if ((b->method == NULL) || (b->method->ctrl == NULL)) {\n BIOerr(BIO_F_BIO_CTRL, BIO_R_UNSUPPORTED_METHOD);\n return (-2);\n }\n cb = b->callback;\n if ((cb != NULL) &&\n ((ret = cb(b, BIO_CB_CTRL, parg, cmd, larg, 1L)) <= 0))\n return (ret);\n ret = b->method->ctrl(b, cmd, larg, parg);\n if (cb != NULL)\n ret = cb(b, BIO_CB_CTRL | BIO_CB_RETURN, parg, cmd, larg, ret);\n return (ret);\n}', 'void EVP_MD_CTX_free(EVP_MD_CTX *ctx)\n{\n EVP_MD_CTX_reset(ctx);\n OPENSSL_free(ctx);\n}', 'void CRYPTO_free(void *str, const char *file, int line)\n{\n if (free_impl != NULL && free_impl != &CRYPTO_free) {\n free_impl(str, file, line);\n return;\n }\n#ifndef OPENSSL_NO_CRYPTO_MDEBUG\n if (call_malloc_debug) {\n CRYPTO_mem_debug_free(str, 0, file, line);\n free(str);\n CRYPTO_mem_debug_free(str, 1, file, line);\n } else {\n free(str);\n }\n#else\n free(str);\n#endif\n}'] |
17,487 | 0 | https://github.com/openssl/openssl/blob/f006217bb628d05a2d5b866ff252bd94e3477e1f/crypto/bn/bn_mul.c/#L99 | BN_ULONG bn_sub_part_words(BN_ULONG *r,
const BN_ULONG *a, const BN_ULONG *b,
int cl, int dl)
{
BN_ULONG c, t;
assert(cl >= 0);
c = bn_sub_words(r, a, b, cl);
if (dl == 0)
return c;
r += cl;
a += cl;
b += cl;
if (dl < 0) {
for (;;) {
t = b[0];
r[0] = (0 - t - c) & BN_MASK2;
if (t != 0)
c = 1;
if (++dl >= 0)
break;
t = b[1];
r[1] = (0 - t - c) & BN_MASK2;
if (t != 0)
c = 1;
if (++dl >= 0)
break;
t = b[2];
r[2] = (0 - t - c) & BN_MASK2;
if (t != 0)
c = 1;
if (++dl >= 0)
break;
t = b[3];
r[3] = (0 - t - c) & BN_MASK2;
if (t != 0)
c = 1;
if (++dl >= 0)
break;
b += 4;
r += 4;
}
} else {
int save_dl = dl;
while (c) {
t = a[0];
r[0] = (t - c) & BN_MASK2;
if (t != 0)
c = 0;
if (--dl <= 0)
break;
t = a[1];
r[1] = (t - c) & BN_MASK2;
if (t != 0)
c = 0;
if (--dl <= 0)
break;
t = a[2];
r[2] = (t - c) & BN_MASK2;
if (t != 0)
c = 0;
if (--dl <= 0)
break;
t = a[3];
r[3] = (t - c) & BN_MASK2;
if (t != 0)
c = 0;
if (--dl <= 0)
break;
save_dl = dl;
a += 4;
r += 4;
}
if (dl > 0) {
if (save_dl > dl) {
switch (save_dl - dl) {
case 1:
r[1] = a[1];
if (--dl <= 0)
break;
case 2:
r[2] = a[2];
if (--dl <= 0)
break;
case 3:
r[3] = a[3];
if (--dl <= 0)
break;
}
a += 4;
r += 4;
}
}
if (dl > 0) {
for (;;) {
r[0] = a[0];
if (--dl <= 0)
break;
r[1] = a[1];
if (--dl <= 0)
break;
r[2] = a[2];
if (--dl <= 0)
break;
r[3] = a[3];
if (--dl <= 0)
break;
a += 4;
r += 4;
}
}
}
return c;
} | ['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 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_is_one(m)) {\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 (!d || !r || !val[0])\n goto err;\n if (in_mont != NULL)\n mont = in_mont;\n else {\n if ((mont = BN_MONT_CTX_new()) == NULL)\n goto err;\n if (!BN_MONT_CTX_set(mont, m, ctx))\n goto err;\n }\n 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}', 'const BIGNUM *BN_value_one(void)\n{\n static const BN_ULONG data_one = 1L;\n static const BIGNUM const_one =\n { (BN_ULONG *)&data_one, 1, 1, 0, BN_FLG_STATIC_DATA };\n return (&const_one);\n}', 'int BN_to_montgomery(BIGNUM *r, const BIGNUM *a, BN_MONT_CTX *mont,\n BN_CTX *ctx)\n{\n return BN_mod_mul_montgomery(r, a, &(mont->RR), mont, ctx);\n}', 'int BN_mod_mul_montgomery(BIGNUM *r, const BIGNUM *a, const BIGNUM *b,\n BN_MONT_CTX *mont, BN_CTX *ctx)\n{\n BIGNUM *tmp;\n int ret = 0;\n#if defined(OPENSSL_BN_ASM_MONT) && defined(MONT_WORD)\n int num = mont->N.top;\n if (num > 1 && a->top == num && b->top == num) {\n if (bn_wexpand(r, num) == NULL)\n return (0);\n if (bn_mul_mont(r->d, a->d, b->d, mont->N.d, mont->n0, num)) {\n r->neg = a->neg ^ b->neg;\n r->top = num;\n bn_correct_top(r);\n return (1);\n }\n }\n#endif\n BN_CTX_start(ctx);\n tmp = BN_CTX_get(ctx);\n if (tmp == NULL)\n goto err;\n bn_check_top(tmp);\n if (a == b) {\n if (!BN_sqr(tmp, a, ctx))\n goto err;\n } else {\n if (!BN_mul(tmp, a, b, ctx))\n goto err;\n }\n#ifdef MONT_WORD\n if (!BN_from_montgomery_word(r, tmp, mont))\n goto err;\n#else\n if (!BN_from_montgomery(r, tmp, mont, ctx))\n goto err;\n#endif\n bn_check_top(r);\n ret = 1;\n err:\n BN_CTX_end(ctx);\n return (ret);\n}', 'int BN_mul(BIGNUM *r, const BIGNUM *a, const BIGNUM *b, BN_CTX *ctx)\n{\n int ret = 0;\n int top, al, bl;\n BIGNUM *rr;\n#if defined(BN_MUL_COMBA) || defined(BN_RECURSION)\n int i;\n#endif\n#ifdef BN_RECURSION\n BIGNUM *t = NULL;\n int j = 0, k;\n#endif\n bn_check_top(a);\n bn_check_top(b);\n bn_check_top(r);\n al = a->top;\n bl = b->top;\n if ((al == 0) || (bl == 0)) {\n BN_zero(r);\n return (1);\n }\n top = al + bl;\n BN_CTX_start(ctx);\n if ((r == a) || (r == b)) {\n if ((rr = BN_CTX_get(ctx)) == NULL)\n goto err;\n } else\n rr = r;\n rr->neg = a->neg ^ b->neg;\n#if defined(BN_MUL_COMBA) || defined(BN_RECURSION)\n i = al - bl;\n#endif\n#ifdef BN_MUL_COMBA\n if (i == 0) {\n# if 0\n if (al == 4) {\n if (bn_wexpand(rr, 8) == NULL)\n goto err;\n rr->top = 8;\n bn_mul_comba4(rr->d, a->d, b->d);\n goto end;\n }\n# endif\n if (al == 8) {\n if (bn_wexpand(rr, 16) == NULL)\n goto err;\n rr->top = 16;\n bn_mul_comba8(rr->d, a->d, b->d);\n goto end;\n }\n }\n#endif\n#ifdef BN_RECURSION\n if ((al >= BN_MULL_SIZE_NORMAL) && (bl >= BN_MULL_SIZE_NORMAL)) {\n if (i >= -1 && i <= 1) {\n if (i >= 0) {\n j = BN_num_bits_word((BN_ULONG)al);\n }\n if (i == -1) {\n j = BN_num_bits_word((BN_ULONG)bl);\n }\n j = 1 << (j - 1);\n assert(j <= al || j <= bl);\n k = j + j;\n t = BN_CTX_get(ctx);\n if (t == NULL)\n goto err;\n if (al > j || bl > j) {\n if (bn_wexpand(t, k * 4) == NULL)\n goto err;\n if (bn_wexpand(rr, k * 4) == NULL)\n goto err;\n bn_mul_part_recursive(rr->d, a->d, b->d,\n j, al - j, bl - j, t->d);\n } else {\n if (bn_wexpand(t, k * 2) == NULL)\n goto err;\n if (bn_wexpand(rr, k * 2) == NULL)\n goto err;\n bn_mul_recursive(rr->d, a->d, b->d, j, al - j, bl - j, t->d);\n }\n rr->top = top;\n goto end;\n }\n# if 0\n if (i == 1 && !BN_get_flags(b, BN_FLG_STATIC_DATA)) {\n BIGNUM *tmp_bn = (BIGNUM *)b;\n if (bn_wexpand(tmp_bn, al) == NULL)\n goto err;\n tmp_bn->d[bl] = 0;\n bl++;\n i--;\n } else if (i == -1 && !BN_get_flags(a, BN_FLG_STATIC_DATA)) {\n BIGNUM *tmp_bn = (BIGNUM *)a;\n if (bn_wexpand(tmp_bn, bl) == NULL)\n goto err;\n tmp_bn->d[al] = 0;\n al++;\n i++;\n }\n if (i == 0) {\n j = BN_num_bits_word((BN_ULONG)al);\n j = 1 << (j - 1);\n k = j + j;\n t = BN_CTX_get(ctx);\n if (al == j) {\n if (bn_wexpand(t, k * 2) == NULL)\n goto err;\n if (bn_wexpand(rr, k * 2) == NULL)\n goto err;\n bn_mul_recursive(rr->d, a->d, b->d, al, t->d);\n } else {\n if (bn_wexpand(t, k * 4) == NULL)\n goto err;\n if (bn_wexpand(rr, k * 4) == NULL)\n goto err;\n bn_mul_part_recursive(rr->d, a->d, b->d, al - j, j, t->d);\n }\n rr->top = top;\n goto end;\n }\n# endif\n }\n#endif\n if (bn_wexpand(rr, top) == NULL)\n goto err;\n rr->top = top;\n bn_mul_normal(rr->d, a->d, al, b->d, bl);\n#if defined(BN_MUL_COMBA) || defined(BN_RECURSION)\n end:\n#endif\n bn_correct_top(rr);\n if (r != rr)\n BN_copy(r, rr);\n ret = 1;\n err:\n bn_check_top(r);\n BN_CTX_end(ctx);\n return (ret);\n}', 'void bn_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}', 'int bn_cmp_part_words(const BN_ULONG *a, const BN_ULONG *b, int cl, int dl)\n{\n int n, i;\n n = cl - 1;\n if (dl < 0) {\n for (i = dl; i < 0; i++) {\n if (b[n - i] != 0)\n return -1;\n }\n }\n if (dl > 0) {\n for (i = dl; i > 0; i--) {\n if (a[n + i] != 0)\n return 1;\n }\n }\n return bn_cmp_words(a, b, cl);\n}', 'BN_ULONG bn_sub_part_words(BN_ULONG *r,\n const BN_ULONG *a, const BN_ULONG *b,\n int cl, int dl)\n{\n BN_ULONG c, t;\n assert(cl >= 0);\n c = bn_sub_words(r, a, b, cl);\n if (dl == 0)\n return c;\n r += cl;\n a += cl;\n b += cl;\n if (dl < 0) {\n for (;;) {\n t = b[0];\n r[0] = (0 - t - c) & BN_MASK2;\n if (t != 0)\n c = 1;\n if (++dl >= 0)\n break;\n t = b[1];\n r[1] = (0 - t - c) & BN_MASK2;\n if (t != 0)\n c = 1;\n if (++dl >= 0)\n break;\n t = b[2];\n r[2] = (0 - t - c) & BN_MASK2;\n if (t != 0)\n c = 1;\n if (++dl >= 0)\n break;\n t = b[3];\n r[3] = (0 - t - c) & BN_MASK2;\n if (t != 0)\n c = 1;\n if (++dl >= 0)\n break;\n b += 4;\n r += 4;\n }\n } else {\n int save_dl = dl;\n while (c) {\n t = a[0];\n r[0] = (t - c) & BN_MASK2;\n if (t != 0)\n c = 0;\n if (--dl <= 0)\n break;\n t = a[1];\n r[1] = (t - c) & BN_MASK2;\n if (t != 0)\n c = 0;\n if (--dl <= 0)\n break;\n t = a[2];\n r[2] = (t - c) & BN_MASK2;\n if (t != 0)\n c = 0;\n if (--dl <= 0)\n break;\n t = a[3];\n r[3] = (t - c) & BN_MASK2;\n if (t != 0)\n c = 0;\n if (--dl <= 0)\n break;\n save_dl = dl;\n a += 4;\n r += 4;\n }\n if (dl > 0) {\n if (save_dl > dl) {\n switch (save_dl - dl) {\n case 1:\n r[1] = a[1];\n if (--dl <= 0)\n break;\n case 2:\n r[2] = a[2];\n if (--dl <= 0)\n break;\n case 3:\n r[3] = a[3];\n if (--dl <= 0)\n break;\n }\n a += 4;\n r += 4;\n }\n }\n if (dl > 0) {\n for (;;) {\n r[0] = a[0];\n if (--dl <= 0)\n break;\n r[1] = a[1];\n if (--dl <= 0)\n break;\n r[2] = a[2];\n if (--dl <= 0)\n break;\n r[3] = a[3];\n if (--dl <= 0)\n break;\n a += 4;\n r += 4;\n }\n }\n }\n return c;\n}'] |
17,488 | 0 | https://github.com/openssl/openssl/blob/9b02dc97e4963969da69675a871dbe80e6d31cda/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 ec_GFp_simple_point_get_affine_coordinates(const EC_GROUP *group,\n const EC_POINT *point,\n BIGNUM *x, BIGNUM *y,\n BN_CTX *ctx)\n{\n BN_CTX *new_ctx = NULL;\n BIGNUM *Z, *Z_1, *Z_2, *Z_3;\n const BIGNUM *Z_;\n int ret = 0;\n if (EC_POINT_is_at_infinity(group, point)) {\n ECerr(EC_F_EC_GFP_SIMPLE_POINT_GET_AFFINE_COORDINATES,\n EC_R_POINT_AT_INFINITY);\n return 0;\n }\n if (ctx == NULL) {\n ctx = new_ctx = BN_CTX_new();\n if (ctx == NULL)\n return 0;\n }\n BN_CTX_start(ctx);\n Z = BN_CTX_get(ctx);\n Z_1 = BN_CTX_get(ctx);\n Z_2 = BN_CTX_get(ctx);\n Z_3 = BN_CTX_get(ctx);\n if (Z_3 == NULL)\n goto err;\n if (group->meth->field_decode) {\n if (!group->meth->field_decode(group, Z, point->Z, ctx))\n goto err;\n Z_ = Z;\n } else {\n Z_ = point->Z;\n }\n if (BN_is_one(Z_)) {\n if (group->meth->field_decode) {\n if (x != NULL) {\n if (!group->meth->field_decode(group, x, point->X, ctx))\n goto err;\n }\n if (y != NULL) {\n if (!group->meth->field_decode(group, y, point->Y, ctx))\n goto err;\n }\n } else {\n if (x != NULL) {\n if (!BN_copy(x, point->X))\n goto err;\n }\n if (y != NULL) {\n if (!BN_copy(y, point->Y))\n goto err;\n }\n }\n } else {\n if (!BN_mod_inverse(Z_1, Z_, group->field, ctx)) {\n ECerr(EC_F_EC_GFP_SIMPLE_POINT_GET_AFFINE_COORDINATES,\n ERR_R_BN_LIB);\n goto err;\n }\n if (group->meth->field_encode == 0) {\n if (!group->meth->field_sqr(group, Z_2, Z_1, ctx))\n goto err;\n } else {\n if (!BN_mod_sqr(Z_2, Z_1, group->field, ctx))\n goto err;\n }\n if (x != NULL) {\n if (!group->meth->field_mul(group, x, point->X, Z_2, ctx))\n goto err;\n }\n if (y != NULL) {\n if (group->meth->field_encode == 0) {\n if (!group->meth->field_mul(group, Z_3, Z_2, Z_1, ctx))\n goto err;\n } else {\n if (!BN_mod_mul(Z_3, Z_2, Z_1, group->field, ctx))\n goto err;\n }\n if (!group->meth->field_mul(group, y, point->Y, Z_3, ctx))\n goto err;\n }\n }\n ret = 1;\n err:\n BN_CTX_end(ctx);\n BN_CTX_free(new_ctx);\n return ret;\n}', 'BIGNUM *BN_CTX_get(BN_CTX *ctx)\n{\n BIGNUM *ret;\n CTXDBG_ENTRY("BN_CTX_get", ctx);\n if (ctx->err_stack || ctx->too_many)\n return NULL;\n if ((ret = BN_POOL_get(&ctx->pool, ctx->flags)) == NULL) {\n ctx->too_many = 1;\n BNerr(BN_F_BN_CTX_GET, BN_R_TOO_MANY_TEMPORARY_VARIABLES);\n return NULL;\n }\n BN_zero(ret);\n ctx->used++;\n CTXDBG_RET(ctx, ret);\n return ret;\n}', 'int BN_set_word(BIGNUM *a, BN_ULONG w)\n{\n bn_check_top(a);\n if (bn_expand(a, (int)sizeof(BN_ULONG) * 8) == NULL)\n return 0;\n a->neg = 0;\n a->d[0] = w;\n a->top = (w ? 1 : 0);\n 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_mod_inverse(BIGNUM *in,\n const BIGNUM *a, const BIGNUM *n, BN_CTX *ctx)\n{\n BIGNUM *rv;\n int noinv;\n rv = int_bn_mod_inverse(in, a, n, ctx, &noinv);\n if (noinv)\n BNerr(BN_F_BN_MOD_INVERSE, BN_R_NO_INVERSE);\n return rv;\n}', 'BIGNUM *int_bn_mod_inverse(BIGNUM *in,\n const BIGNUM *a, const BIGNUM *n, BN_CTX *ctx,\n int *pnoinv)\n{\n BIGNUM *A, *B, *X, *Y, *M, *D, *T, *R = NULL;\n BIGNUM *ret = NULL;\n int sign;\n if (pnoinv)\n *pnoinv = 0;\n if ((BN_get_flags(a, BN_FLG_CONSTTIME) != 0)\n || (BN_get_flags(n, BN_FLG_CONSTTIME) != 0)) {\n return BN_mod_inverse_no_branch(in, a, n, ctx);\n }\n bn_check_top(a);\n bn_check_top(n);\n BN_CTX_start(ctx);\n A = BN_CTX_get(ctx);\n B = BN_CTX_get(ctx);\n X = BN_CTX_get(ctx);\n D = BN_CTX_get(ctx);\n M = BN_CTX_get(ctx);\n Y = BN_CTX_get(ctx);\n T = BN_CTX_get(ctx);\n if (T == NULL)\n goto err;\n if (in == NULL)\n R = BN_new();\n else\n R = in;\n if (R == NULL)\n goto err;\n BN_one(X);\n BN_zero(Y);\n if (BN_copy(B, a) == NULL)\n goto err;\n if (BN_copy(A, n) == NULL)\n goto err;\n A->neg = 0;\n if (B->neg || (BN_ucmp(B, A) >= 0)) {\n if (!BN_nnmod(B, B, A, ctx))\n goto err;\n }\n sign = -1;\n if (BN_is_odd(n) && (BN_num_bits(n) <= 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}', '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 if (BN_get_flags(b, BN_FLG_CONSTTIME) != 0)\n BN_set_flags(a, BN_FLG_CONSTTIME);\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}', '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}'] |
17,489 | 0 | https://github.com/openssl/openssl/blob/8b0d4242404f9e5da26e7594fa0864b2df4601af/crypto/bn/bn_lib.c/#L333 | 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->top = b->top;
a->neg = b->neg;
bn_check_top(a);
return a;
} | ["char *BN_bn2dec(const BIGNUM *a)\n{\n int i = 0, num, ok = 0;\n char *buf = NULL;\n char *p;\n BIGNUM *t = NULL;\n BN_ULONG *bn_data = NULL, *lp;\n int bn_data_num;\n i = BN_num_bits(a) * 3;\n num = (i / 10 + i / 1000 + 1) + 1;\n bn_data_num = num / BN_DEC_NUM + 1;\n bn_data = OPENSSL_malloc(bn_data_num * sizeof(BN_ULONG));\n buf = OPENSSL_malloc(num + 3);\n if ((buf == NULL) || (bn_data == NULL)) {\n BNerr(BN_F_BN_BN2DEC, ERR_R_MALLOC_FAILURE);\n goto err;\n }\n if ((t = BN_dup(a)) == NULL)\n goto err;\n#define BUF_REMAIN (num+3 - (size_t)(p - buf))\n p = buf;\n lp = bn_data;\n if (BN_is_zero(t)) {\n *(p++) = '0';\n *(p++) = '\\0';\n } else {\n if (BN_is_negative(t))\n *p++ = '-';\n while (!BN_is_zero(t)) {\n if (lp - bn_data >= bn_data_num)\n goto err;\n *lp = BN_div_word(t, BN_DEC_CONV);\n if (*lp == (BN_ULONG)-1)\n goto err;\n lp++;\n }\n lp--;\n BIO_snprintf(p, BUF_REMAIN, BN_DEC_FMT1, *lp);\n while (*p)\n p++;\n while (lp != bn_data) {\n lp--;\n BIO_snprintf(p, BUF_REMAIN, BN_DEC_FMT2, *lp);\n while (*p)\n p++;\n }\n }\n ok = 1;\n err:\n OPENSSL_free(bn_data);\n BN_free(t);\n if (ok)\n return buf;\n OPENSSL_free(buf);\n return NULL;\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}', 'BIGNUM *BN_dup(const BIGNUM *a)\n{\n BIGNUM *t;\n if (a == NULL)\n return NULL;\n bn_check_top(a);\n t = BN_get_flags(a, BN_FLG_SECURE) ? BN_secure_new() : BN_new();\n if (t == NULL)\n return NULL;\n if (!BN_copy(t, a)) {\n BN_free(t);\n return NULL;\n }\n bn_check_top(t);\n return t;\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->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}'] |
17,490 | 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_GF2m_mod_div_arr(BIGNUM *r, const BIGNUM *yy, const BIGNUM *xx,\n const int p[], BN_CTX *ctx)\n{\n BIGNUM *field;\n int ret = 0;\n bn_check_top(yy);\n bn_check_top(xx);\n BN_CTX_start(ctx);\n if ((field = BN_CTX_get(ctx)) == NULL)\n goto err;\n if (!BN_GF2m_arr2poly(p, field))\n goto err;\n ret = BN_GF2m_mod_div(r, yy, xx, field, ctx);\n bn_check_top(r);\n err:\n BN_CTX_end(ctx);\n return ret;\n}', 'BIGNUM *BN_CTX_get(BN_CTX *ctx)\n{\n BIGNUM *ret;\n CTXDBG_ENTRY("BN_CTX_get", ctx);\n if (ctx->err_stack || ctx->too_many)\n return NULL;\n if ((ret = BN_POOL_get(&ctx->pool, ctx->flags)) == NULL) {\n ctx->too_many = 1;\n BNerr(BN_F_BN_CTX_GET, BN_R_TOO_MANY_TEMPORARY_VARIABLES);\n return NULL;\n }\n BN_zero(ret);\n ctx->used++;\n CTXDBG_RET(ctx, ret);\n return ret;\n}', 'int BN_set_word(BIGNUM *a, BN_ULONG w)\n{\n bn_check_top(a);\n if (bn_expand(a, (int)sizeof(BN_ULONG) * 8) == NULL)\n return (0);\n a->neg = 0;\n a->d[0] = w;\n a->top = (w ? 1 : 0);\n bn_check_top(a);\n return (1);\n}', 'int BN_GF2m_arr2poly(const int p[], BIGNUM *a)\n{\n int i;\n bn_check_top(a);\n BN_zero(a);\n for (i = 0; p[i] != -1; i++) {\n if (BN_set_bit(a, p[i]) == 0)\n return 0;\n }\n bn_check_top(a);\n return 1;\n}'] |
17,491 | 0 | https://github.com/libav/libav/blob/aff8810172f35e1a4e5d1aa180591760add2b6e6/libavformat/nutdec.c/#L762 | static int decode_frame(NUTContext *nut, AVPacket *pkt, int frame_code){
AVFormatContext *s= nut->avf;
ByteIOContext *bc = s->pb;
int size, stream_id, discard;
int64_t pts, last_IP_pts;
StreamContext *stc;
uint8_t header_idx;
size= decode_frame_header(nut, &pts, &stream_id, &header_idx, frame_code);
if(size < 0)
return -1;
stc= &nut->stream[stream_id];
if (stc->last_flags & FLAG_KEY)
stc->skip_until_key_frame=0;
discard= s->streams[ stream_id ]->discard;
last_IP_pts= s->streams[ stream_id ]->last_IP_pts;
if( (discard >= AVDISCARD_NONKEY && !(stc->last_flags & FLAG_KEY))
||(discard >= AVDISCARD_BIDIR && last_IP_pts != AV_NOPTS_VALUE && last_IP_pts > pts)
|| discard >= AVDISCARD_ALL
|| stc->skip_until_key_frame){
url_fskip(bc, size);
return 1;
}
av_new_packet(pkt, size + nut->header_len[header_idx]);
memcpy(pkt->data, nut->header[header_idx], nut->header_len[header_idx]);
pkt->pos= url_ftell(bc);
get_buffer(bc, pkt->data + nut->header_len[header_idx], size);
pkt->stream_index = stream_id;
if (stc->last_flags & FLAG_KEY)
pkt->flags |= AV_PKT_FLAG_KEY;
pkt->pts = pts;
return 0;
} | ['static int decode_frame(NUTContext *nut, AVPacket *pkt, int frame_code){\n AVFormatContext *s= nut->avf;\n ByteIOContext *bc = s->pb;\n int size, stream_id, discard;\n int64_t pts, last_IP_pts;\n StreamContext *stc;\n uint8_t header_idx;\n size= decode_frame_header(nut, &pts, &stream_id, &header_idx, frame_code);\n if(size < 0)\n return -1;\n stc= &nut->stream[stream_id];\n if (stc->last_flags & FLAG_KEY)\n stc->skip_until_key_frame=0;\n discard= s->streams[ stream_id ]->discard;\n last_IP_pts= s->streams[ stream_id ]->last_IP_pts;\n if( (discard >= AVDISCARD_NONKEY && !(stc->last_flags & FLAG_KEY))\n ||(discard >= AVDISCARD_BIDIR && last_IP_pts != AV_NOPTS_VALUE && last_IP_pts > pts)\n || discard >= AVDISCARD_ALL\n || stc->skip_until_key_frame){\n url_fskip(bc, size);\n return 1;\n }\n av_new_packet(pkt, size + nut->header_len[header_idx]);\n memcpy(pkt->data, nut->header[header_idx], nut->header_len[header_idx]);\n pkt->pos= url_ftell(bc);\n get_buffer(bc, pkt->data + nut->header_len[header_idx], size);\n pkt->stream_index = stream_id;\n if (stc->last_flags & FLAG_KEY)\n pkt->flags |= AV_PKT_FLAG_KEY;\n pkt->pts = pts;\n return 0;\n}', 'int av_new_packet(AVPacket *pkt, int size)\n{\n uint8_t *data= NULL;\n if((unsigned)size < (unsigned)size + FF_INPUT_BUFFER_PADDING_SIZE)\n data = av_malloc(size + FF_INPUT_BUFFER_PADDING_SIZE);\n if (data){\n memset(data + size, 0, FF_INPUT_BUFFER_PADDING_SIZE);\n }else\n size=0;\n av_init_packet(pkt);\n pkt->data = data;\n pkt->size = size;\n pkt->destruct = av_destruct_packet;\n if(!data)\n return AVERROR(ENOMEM);\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}', 'void av_init_packet(AVPacket *pkt)\n{\n pkt->pts = AV_NOPTS_VALUE;\n pkt->dts = AV_NOPTS_VALUE;\n pkt->pos = -1;\n pkt->duration = 0;\n pkt->convergence_duration = 0;\n pkt->flags = 0;\n pkt->stream_index = 0;\n pkt->destruct= NULL;\n}'] |
17,492 | 0 | https://github.com/libav/libav/blob/12f0388f9cb32016ac0dacaeca631b088b29bb96/libavcodec/smacker.c/#L306 | static int decode_header_trees(SmackVContext *smk) {
GetBitContext gb;
int mmap_size, mclr_size, full_size, type_size;
mmap_size = AV_RL32(smk->avctx->extradata);
mclr_size = AV_RL32(smk->avctx->extradata + 4);
full_size = AV_RL32(smk->avctx->extradata + 8);
type_size = AV_RL32(smk->avctx->extradata + 12);
init_get_bits(&gb, smk->avctx->extradata + 16, (smk->avctx->extradata_size - 16) * 8);
if(!get_bits1(&gb)) {
av_log(smk->avctx, AV_LOG_INFO, "Skipping MMAP tree\n");
smk->mmap_tbl = av_malloc(sizeof(int) * 2);
if (!smk->mmap_tbl)
return AVERROR(ENOMEM);
smk->mmap_tbl[0] = 0;
smk->mmap_last[0] = smk->mmap_last[1] = smk->mmap_last[2] = 1;
} else {
if (smacker_decode_header_tree(smk, &gb, &smk->mmap_tbl, smk->mmap_last, mmap_size))
return -1;
}
if(!get_bits1(&gb)) {
av_log(smk->avctx, AV_LOG_INFO, "Skipping MCLR tree\n");
smk->mclr_tbl = av_malloc(sizeof(int) * 2);
if (!smk->mclr_tbl)
return AVERROR(ENOMEM);
smk->mclr_tbl[0] = 0;
smk->mclr_last[0] = smk->mclr_last[1] = smk->mclr_last[2] = 1;
} else {
if (smacker_decode_header_tree(smk, &gb, &smk->mclr_tbl, smk->mclr_last, mclr_size))
return -1;
}
if(!get_bits1(&gb)) {
av_log(smk->avctx, AV_LOG_INFO, "Skipping FULL tree\n");
smk->full_tbl = av_malloc(sizeof(int) * 2);
if (!smk->full_tbl)
return AVERROR(ENOMEM);
smk->full_tbl[0] = 0;
smk->full_last[0] = smk->full_last[1] = smk->full_last[2] = 1;
} else {
if (smacker_decode_header_tree(smk, &gb, &smk->full_tbl, smk->full_last, full_size))
return -1;
}
if(!get_bits1(&gb)) {
av_log(smk->avctx, AV_LOG_INFO, "Skipping TYPE tree\n");
smk->type_tbl = av_malloc(sizeof(int) * 2);
if (!smk->type_tbl)
return AVERROR(ENOMEM);
smk->type_tbl[0] = 0;
smk->type_last[0] = smk->type_last[1] = smk->type_last[2] = 1;
} else {
if (smacker_decode_header_tree(smk, &gb, &smk->type_tbl, smk->type_last, type_size))
return -1;
}
return 0;
} | ['static int decode_header_trees(SmackVContext *smk) {\n GetBitContext gb;\n int mmap_size, mclr_size, full_size, type_size;\n mmap_size = AV_RL32(smk->avctx->extradata);\n mclr_size = AV_RL32(smk->avctx->extradata + 4);\n full_size = AV_RL32(smk->avctx->extradata + 8);\n type_size = AV_RL32(smk->avctx->extradata + 12);\n init_get_bits(&gb, smk->avctx->extradata + 16, (smk->avctx->extradata_size - 16) * 8);\n if(!get_bits1(&gb)) {\n av_log(smk->avctx, AV_LOG_INFO, "Skipping MMAP tree\\n");\n smk->mmap_tbl = av_malloc(sizeof(int) * 2);\n if (!smk->mmap_tbl)\n return AVERROR(ENOMEM);\n smk->mmap_tbl[0] = 0;\n smk->mmap_last[0] = smk->mmap_last[1] = smk->mmap_last[2] = 1;\n } else {\n if (smacker_decode_header_tree(smk, &gb, &smk->mmap_tbl, smk->mmap_last, mmap_size))\n return -1;\n }\n if(!get_bits1(&gb)) {\n av_log(smk->avctx, AV_LOG_INFO, "Skipping MCLR tree\\n");\n smk->mclr_tbl = av_malloc(sizeof(int) * 2);\n if (!smk->mclr_tbl)\n return AVERROR(ENOMEM);\n smk->mclr_tbl[0] = 0;\n smk->mclr_last[0] = smk->mclr_last[1] = smk->mclr_last[2] = 1;\n } else {\n if (smacker_decode_header_tree(smk, &gb, &smk->mclr_tbl, smk->mclr_last, mclr_size))\n return -1;\n }\n if(!get_bits1(&gb)) {\n av_log(smk->avctx, AV_LOG_INFO, "Skipping FULL tree\\n");\n smk->full_tbl = av_malloc(sizeof(int) * 2);\n if (!smk->full_tbl)\n return AVERROR(ENOMEM);\n smk->full_tbl[0] = 0;\n smk->full_last[0] = smk->full_last[1] = smk->full_last[2] = 1;\n } else {\n if (smacker_decode_header_tree(smk, &gb, &smk->full_tbl, smk->full_last, full_size))\n return -1;\n }\n if(!get_bits1(&gb)) {\n av_log(smk->avctx, AV_LOG_INFO, "Skipping TYPE tree\\n");\n smk->type_tbl = av_malloc(sizeof(int) * 2);\n if (!smk->type_tbl)\n return AVERROR(ENOMEM);\n smk->type_tbl[0] = 0;\n smk->type_last[0] = smk->type_last[1] = smk->type_last[2] = 1;\n } else {\n if (smacker_decode_header_tree(smk, &gb, &smk->type_tbl, smk->type_last, type_size))\n return -1;\n }\n return 0;\n}', 'static inline int init_get_bits(GetBitContext *s, const uint8_t *buffer,\n int bit_size)\n{\n int buffer_size;\n int ret = 0;\n if (bit_size > INT_MAX - 7 || bit_size < 0 || !buffer) {\n 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}'] |
17,493 | 0 | https://github.com/openssl/openssl/blob/6bc62a620e715f7580651ca932eab052aa527886/crypto/bn/bn_ctx.c/#L268 | static unsigned int BN_STACK_pop(BN_STACK *st)
{
return st->indexes[--(st->depth)];
} | ['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;\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 || (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 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_to_mont_fixed_top(s, ret->r, group->mont_data, ctx)\n || !bn_mul_mont_fixed_top(s, s, priv_key, group->mont_data, ctx)) {\n ECerr(EC_F_OSSL_ECDSA_SIGN_SIG, ERR_R_BN_LIB);\n goto err;\n }\n if (!bn_mod_add_fixed_top(s, s, m, order)) {\n ECerr(EC_F_OSSL_ECDSA_SIGN_SIG, ERR_R_BN_LIB);\n goto err;\n }\n if (!bn_to_mont_fixed_top(s, s, group->mont_data, ctx)\n || !BN_mod_mul_montgomery(s, s, ckinv, group->mont_data, 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(kinv);\n return ret;\n}', 'static int ecdsa_sign_setup(EC_KEY *eckey, BN_CTX *ctx_in,\n BIGNUM **kinvp, BIGNUM **rp,\n const unsigned char *dgst, int dlen)\n{\n BN_CTX *ctx = NULL;\n BIGNUM *k = NULL, *r = NULL, *X = NULL;\n const BIGNUM *order;\n EC_POINT *tmp_point = NULL;\n const EC_GROUP *group;\n int ret = 0;\n int order_bits;\n if (eckey == NULL || (group = EC_KEY_get0_group(eckey)) == NULL) {\n ECerr(EC_F_ECDSA_SIGN_SETUP, ERR_R_PASSED_NULL_PARAMETER);\n return 0;\n }\n if (!EC_KEY_can_sign(eckey)) {\n ECerr(EC_F_ECDSA_SIGN_SETUP, EC_R_CURVE_DOES_NOT_SUPPORT_SIGNING);\n return 0;\n }\n if ((ctx = ctx_in) == NULL) {\n if ((ctx = BN_CTX_new()) == NULL) {\n ECerr(EC_F_ECDSA_SIGN_SETUP, ERR_R_MALLOC_FAILURE);\n return 0;\n }\n }\n k = BN_new();\n r = BN_new();\n X = BN_new();\n if (k == NULL || r == NULL || X == NULL) {\n ECerr(EC_F_ECDSA_SIGN_SETUP, ERR_R_MALLOC_FAILURE);\n goto err;\n }\n if ((tmp_point = EC_POINT_new(group)) == NULL) {\n ECerr(EC_F_ECDSA_SIGN_SETUP, ERR_R_EC_LIB);\n goto err;\n }\n order = EC_GROUP_get0_order(group);\n order_bits = BN_num_bits(order);\n if (!BN_set_bit(k, order_bits)\n || !BN_set_bit(r, order_bits)\n || !BN_set_bit(X, order_bits))\n goto err;\n do {\n do {\n if (dgst != NULL) {\n if (!BN_generate_dsa_nonce(k, order,\n EC_KEY_get0_private_key(eckey),\n dgst, dlen, ctx)) {\n ECerr(EC_F_ECDSA_SIGN_SETUP,\n EC_R_RANDOM_NUMBER_GENERATION_FAILED);\n goto err;\n }\n } else {\n if (!BN_priv_rand_range(k, order)) {\n ECerr(EC_F_ECDSA_SIGN_SETUP,\n EC_R_RANDOM_NUMBER_GENERATION_FAILED);\n goto err;\n }\n }\n } while (BN_is_zero(k));\n if (!EC_POINT_mul(group, tmp_point, k, NULL, NULL, ctx)) {\n ECerr(EC_F_ECDSA_SIGN_SETUP, ERR_R_EC_LIB);\n goto err;\n }\n if (!EC_POINT_get_affine_coordinates(group, tmp_point, X, NULL, ctx)) {\n ECerr(EC_F_ECDSA_SIGN_SETUP, ERR_R_EC_LIB);\n goto err;\n }\n if (!BN_nnmod(r, X, order, ctx)) {\n ECerr(EC_F_ECDSA_SIGN_SETUP, ERR_R_BN_LIB);\n goto err;\n }\n } while (BN_is_zero(r));\n if (!ec_group_do_inverse_ord(group, k, k, ctx)) {\n ECerr(EC_F_ECDSA_SIGN_SETUP, ERR_R_BN_LIB);\n goto err;\n }\n BN_clear_free(*rp);\n BN_clear_free(*kinvp);\n *rp = r;\n *kinvp = k;\n ret = 1;\n err:\n if (!ret) {\n BN_clear_free(k);\n BN_clear_free(r);\n }\n if (ctx != ctx_in)\n BN_CTX_free(ctx);\n EC_POINT_free(tmp_point);\n BN_clear_free(X);\n return ret;\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}', 'void BN_CTX_start(BN_CTX *ctx)\n{\n CTXDBG("ENTER BN_CTX_start()", ctx);\n if (ctx->err_stack || ctx->too_many)\n ctx->err_stack++;\n else if (!BN_STACK_push(&ctx->stack, ctx->used)) {\n BNerr(BN_F_BN_CTX_START, BN_R_TOO_MANY_TEMPORARY_VARIABLES);\n ctx->err_stack++;\n }\n CTXDBG("LEAVE BN_CTX_start()", ctx);\n}', 'int bn_mul_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}'] |
17,494 | 0 | https://github.com/openssl/openssl/blob/7d461736f7bd3af3c2f266f8541034ecf6f41ed9/crypto/bn/bn_lib.c/#L322 | 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->top = b->top;
a->neg = b->neg;
bn_check_top(a);
return a;
} | ['int srp_generate_client_master_secret(SSL *s)\n{\n BIGNUM *x = NULL, *u = NULL, *K = NULL;\n int ret = -1, tmp_len = 0;\n char *passwd = NULL;\n unsigned char *tmp = NULL;\n if (SRP_Verify_B_mod_N(s->srp_ctx.B, s->srp_ctx.N) == 0\n || (u = SRP_Calc_u(s->srp_ctx.A, s->srp_ctx.B, s->srp_ctx.N))\n == NULL\n || s->srp_ctx.SRP_give_srp_client_pwd_callback == NULL) {\n SSLfatal(s, SSL_AD_INTERNAL_ERROR,\n SSL_F_SRP_GENERATE_CLIENT_MASTER_SECRET, ERR_R_INTERNAL_ERROR);\n goto err;\n }\n if ((passwd = s->srp_ctx.SRP_give_srp_client_pwd_callback(s,\n s->srp_ctx.SRP_cb_arg))\n == NULL) {\n SSLfatal(s, SSL_AD_INTERNAL_ERROR,\n SSL_F_SRP_GENERATE_CLIENT_MASTER_SECRET,\n SSL_R_CALLBACK_FAILED);\n goto err;\n }\n if ((x = SRP_Calc_x(s->srp_ctx.s, s->srp_ctx.login, passwd)) == NULL\n || (K = SRP_Calc_client_key(s->srp_ctx.N, s->srp_ctx.B,\n s->srp_ctx.g, x,\n s->srp_ctx.a, u)) == NULL) {\n SSLfatal(s, SSL_AD_INTERNAL_ERROR,\n SSL_F_SRP_GENERATE_CLIENT_MASTER_SECRET, ERR_R_INTERNAL_ERROR);\n goto err;\n }\n tmp_len = BN_num_bytes(K);\n if ((tmp = OPENSSL_malloc(tmp_len)) == NULL) {\n SSLfatal(s, SSL_AD_INTERNAL_ERROR,\n SSL_F_SRP_GENERATE_CLIENT_MASTER_SECRET, ERR_R_MALLOC_FAILURE);\n goto err;\n }\n BN_bn2bin(K, tmp);\n ret = ssl_generate_master_secret(s, tmp, tmp_len, 1);\n err:\n BN_clear_free(K);\n BN_clear_free(x);\n if (passwd != NULL)\n OPENSSL_clear_free(passwd, strlen(passwd));\n BN_clear_free(u);\n return ret;\n}', 'int SRP_Verify_B_mod_N(const BIGNUM *B, const BIGNUM *N)\n{\n BIGNUM *r;\n BN_CTX *bn_ctx;\n int ret = 0;\n if (B == NULL || N == NULL || (bn_ctx = BN_CTX_new()) == NULL)\n return 0;\n if ((r = BN_new()) == NULL)\n goto err;\n if (!BN_nnmod(r, B, N, bn_ctx))\n goto err;\n ret = !BN_is_zero(r);\n err:\n BN_CTX_free(bn_ctx);\n BN_free(r);\n return ret;\n}', 'BIGNUM *SRP_Calc_u(const BIGNUM *A, const BIGNUM *B, const BIGNUM *N)\n{\n return srp_Calc_xy(A, B, N);\n}', 'static BIGNUM *srp_Calc_xy(const BIGNUM *x, const BIGNUM *y, const BIGNUM *N)\n{\n unsigned char digest[SHA_DIGEST_LENGTH];\n unsigned char *tmp = NULL;\n int numN = BN_num_bytes(N);\n BIGNUM *res = NULL;\n if (x != N && BN_ucmp(x, N) >= 0)\n return NULL;\n if (y != N && BN_ucmp(y, N) >= 0)\n return NULL;\n if ((tmp = OPENSSL_malloc(numN * 2)) == NULL)\n goto err;\n if (BN_bn2binpad(x, tmp, numN) < 0\n || BN_bn2binpad(y, tmp + numN, numN) < 0\n || !EVP_Digest(tmp, numN * 2, digest, NULL, EVP_sha1(), NULL))\n goto err;\n res = BN_bin2bn(digest, sizeof(digest), NULL);\n err:\n OPENSSL_free(tmp);\n return res;\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}', 'BIGNUM *SRP_Calc_client_key(const BIGNUM *N, const BIGNUM *B, const BIGNUM *g,\n const BIGNUM *x, const BIGNUM *a, const BIGNUM *u)\n{\n BIGNUM *tmp = NULL, *tmp2 = NULL, *tmp3 = NULL, *k = NULL, *K = NULL;\n BN_CTX *bn_ctx;\n if (u == NULL || B == NULL || N == NULL || g == NULL || x == NULL\n || a == NULL || (bn_ctx = BN_CTX_new()) == NULL)\n return NULL;\n if ((tmp = BN_new()) == NULL ||\n (tmp2 = BN_new()) == NULL ||\n (tmp3 = BN_new()) == NULL)\n goto err;\n if (!BN_mod_exp(tmp, g, x, N, bn_ctx))\n goto err;\n if ((k = srp_Calc_k(N, g)) == NULL)\n goto err;\n if (!BN_mod_mul(tmp2, tmp, k, N, bn_ctx))\n goto err;\n if (!BN_mod_sub(tmp, B, tmp2, N, bn_ctx))\n goto err;\n if (!BN_mul(tmp3, u, x, bn_ctx))\n goto err;\n if (!BN_add(tmp2, a, tmp3))\n goto err;\n K = BN_new();\n if (K != NULL && !BN_mod_exp(K, tmp, tmp2, N, bn_ctx)) {\n BN_free(K);\n K = NULL;\n }\n err:\n BN_CTX_free(bn_ctx);\n BN_clear_free(tmp);\n BN_clear_free(tmp2);\n BN_clear_free(tmp3);\n BN_free(k);\n return K;\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_is_odd(const BIGNUM *a)\n{\n return (a->top > 0) && (a->d[0] & 1);\n}', 'int BN_mod_exp_recp(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,\n const BIGNUM *m, BN_CTX *ctx)\n{\n int i, j, bits, ret = 0, wstart, wend, window, wvalue;\n int start = 1;\n BIGNUM *aa;\n BIGNUM *val[TABLE_SIZE];\n BN_RECP_CTX recp;\n if (BN_get_flags(p, BN_FLG_CONSTTIME) != 0\n || 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_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 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}', 'int BN_RECP_CTX_set(BN_RECP_CTX *recp, const BIGNUM *d, BN_CTX *ctx)\n{\n if (!BN_copy(&(recp->N), d))\n return 0;\n BN_zero(&(recp->Nr));\n recp->num_bits = BN_num_bits(d);\n recp->shift = 0;\n return 1;\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->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}'] |
17,495 | 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);
} | ['int OBJ_NAME_remove(const char *name, int type)\n\t{\n\tOBJ_NAME on,*ret;\n\tif (names_lh == NULL) return(0);\n\ttype&= ~OBJ_NAME_ALIAS;\n\ton.name=name;\n\ton.type=type;\n\tret=(OBJ_NAME *)lh_delete(names_lh,&on);\n\tif (ret != NULL)\n\t\t{\n\t\tif ((name_funcs_stack != NULL) && (sk_NAME_FUNCS_num(name_funcs_stack) > ret->type))\n\t\t\t{\n\t\t\tsk_NAME_FUNCS_value(name_funcs_stack,ret->type)\n\t\t\t\t->free_func(ret->name,ret->type,ret->data);\n\t\t\t}\n\t\tOPENSSL_free(ret);\n\t\treturn(1);\n\t\t}\n\telse\n\t\treturn(0);\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}'] |
17,496 | 0 | https://github.com/libav/libav/blob/3a84713aaa5a0f83cbb3fdca62c83df609822c9c/libavcodec/aac.c/#L1366 | static int aac_decode_frame(AVCodecContext * avccontext, void * data, int * data_size, const uint8_t * buf, int buf_size) {
AACContext * ac = avccontext->priv_data;
GetBitContext gb;
enum RawDataBlockType elem_type;
int err, elem_id, data_size_tmp;
init_get_bits(&gb, buf, buf_size*8);
while ((elem_type = get_bits(&gb, 3)) != TYPE_END) {
elem_id = get_bits(&gb, 4);
err = -1;
if(elem_type == TYPE_SCE && elem_id == 1 &&
!ac->che[TYPE_SCE][elem_id] && ac->che[TYPE_LFE][0]) {
ac->che[TYPE_SCE][elem_id] = ac->che[TYPE_LFE][0];
ac->che[TYPE_LFE][0] = NULL;
}
if(elem_type < TYPE_DSE) {
if(!ac->che[elem_type][elem_id])
return -1;
if(elem_type != TYPE_CCE)
ac->che[elem_type][elem_id]->coup.coupling_point = 4;
}
switch (elem_type) {
case TYPE_SCE:
err = decode_ics(ac, &ac->che[TYPE_SCE][elem_id]->ch[0], &gb, 0, 0);
break;
case TYPE_CPE:
err = decode_cpe(ac, &gb, elem_id);
break;
case TYPE_CCE:
err = decode_cce(ac, &gb, ac->che[TYPE_CCE][elem_id]);
break;
case TYPE_LFE:
err = decode_ics(ac, &ac->che[TYPE_LFE][elem_id]->ch[0], &gb, 0, 0);
break;
case TYPE_DSE:
skip_data_stream_element(&gb);
err = 0;
break;
case TYPE_PCE:
{
enum ChannelPosition new_che_pos[4][MAX_ELEM_ID];
memset(new_che_pos, 0, 4 * MAX_ELEM_ID * sizeof(new_che_pos[0][0]));
if((err = decode_pce(ac, new_che_pos, &gb)))
break;
err = output_configure(ac, ac->che_pos, new_che_pos);
break;
}
case TYPE_FIL:
if (elem_id == 15)
elem_id += get_bits(&gb, 8) - 1;
while (elem_id > 0)
elem_id -= decode_extension_payload(ac, &gb, elem_id);
err = 0;
break;
default:
err = -1;
break;
}
if(err)
return err;
}
spectral_to_sample(ac);
if (!ac->is_saved) {
ac->is_saved = 1;
*data_size = 0;
return buf_size;
}
data_size_tmp = 1024 * avccontext->channels * sizeof(int16_t);
if(*data_size < data_size_tmp) {
av_log(avccontext, AV_LOG_ERROR,
"Output buffer too small (%d) or trying to output too many samples (%d) for this frame.\n",
*data_size, data_size_tmp);
return -1;
}
*data_size = data_size_tmp;
ac->dsp.float_to_int16_interleave(data, (const float **)ac->output_data, 1024, avccontext->channels);
return buf_size;
} | ['static int aac_decode_frame(AVCodecContext * avccontext, void * data, int * data_size, const uint8_t * buf, int buf_size) {\n AACContext * ac = avccontext->priv_data;\n GetBitContext gb;\n enum RawDataBlockType elem_type;\n int err, elem_id, data_size_tmp;\n init_get_bits(&gb, buf, buf_size*8);\n while ((elem_type = get_bits(&gb, 3)) != TYPE_END) {\n elem_id = get_bits(&gb, 4);\n err = -1;\n if(elem_type == TYPE_SCE && elem_id == 1 &&\n !ac->che[TYPE_SCE][elem_id] && ac->che[TYPE_LFE][0]) {\n ac->che[TYPE_SCE][elem_id] = ac->che[TYPE_LFE][0];\n ac->che[TYPE_LFE][0] = NULL;\n }\n if(elem_type < TYPE_DSE) {\n if(!ac->che[elem_type][elem_id])\n return -1;\n if(elem_type != TYPE_CCE)\n ac->che[elem_type][elem_id]->coup.coupling_point = 4;\n }\n switch (elem_type) {\n case TYPE_SCE:\n err = decode_ics(ac, &ac->che[TYPE_SCE][elem_id]->ch[0], &gb, 0, 0);\n break;\n case TYPE_CPE:\n err = decode_cpe(ac, &gb, elem_id);\n break;\n case TYPE_CCE:\n err = decode_cce(ac, &gb, ac->che[TYPE_CCE][elem_id]);\n break;\n case TYPE_LFE:\n err = decode_ics(ac, &ac->che[TYPE_LFE][elem_id]->ch[0], &gb, 0, 0);\n break;\n case TYPE_DSE:\n skip_data_stream_element(&gb);\n err = 0;\n break;\n case TYPE_PCE:\n {\n enum ChannelPosition new_che_pos[4][MAX_ELEM_ID];\n memset(new_che_pos, 0, 4 * MAX_ELEM_ID * sizeof(new_che_pos[0][0]));\n if((err = decode_pce(ac, new_che_pos, &gb)))\n break;\n err = output_configure(ac, ac->che_pos, new_che_pos);\n break;\n }\n case TYPE_FIL:\n if (elem_id == 15)\n elem_id += get_bits(&gb, 8) - 1;\n while (elem_id > 0)\n elem_id -= decode_extension_payload(ac, &gb, elem_id);\n err = 0;\n break;\n default:\n err = -1;\n break;\n }\n if(err)\n return err;\n }\n spectral_to_sample(ac);\n if (!ac->is_saved) {\n ac->is_saved = 1;\n *data_size = 0;\n return buf_size;\n }\n data_size_tmp = 1024 * avccontext->channels * sizeof(int16_t);\n if(*data_size < data_size_tmp) {\n av_log(avccontext, AV_LOG_ERROR,\n "Output buffer too small (%d) or trying to output too many samples (%d) for this frame.\\n",\n *data_size, data_size_tmp);\n return -1;\n }\n *data_size = data_size_tmp;\n ac->dsp.float_to_int16_interleave(data, (const float **)ac->output_data, 1024, avccontext->channels);\n return buf_size;\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}'] |
17,497 | 0 | https://github.com/libav/libav/blob/750f5034cf4d0dbe54aed917972f9c3f7a2cebbd/libavformat/rtpdec.c/#L364 | static int rtp_parse_mp4_au(RTPDemuxContext *s, const uint8_t *buf)
{
int au_headers_length, au_header_size, i;
GetBitContext getbitcontext;
RTPPayloadData *infos;
infos = s->rtp_payload_data;
if (infos == NULL)
return -1;
au_headers_length = AV_RB16(buf);
if (au_headers_length > RTP_MAX_PACKET_LENGTH)
return -1;
infos->au_headers_length_bytes = (au_headers_length + 7) / 8;
buf += 2;
init_get_bits(&getbitcontext, buf, infos->au_headers_length_bytes * 8);
au_header_size = infos->sizelength + infos->indexlength;
if (au_header_size <= 0 || (au_headers_length % au_header_size != 0))
return -1;
infos->nb_au_headers = au_headers_length / au_header_size;
infos->au_headers = av_malloc(sizeof(struct AUHeaders) * infos->nb_au_headers);
infos->au_headers[0].size = 0;
infos->au_headers[0].index = 0;
for (i = 0; i < infos->nb_au_headers; ++i) {
infos->au_headers[0].size += get_bits_long(&getbitcontext, infos->sizelength);
infos->au_headers[0].index = get_bits_long(&getbitcontext, infos->indexlength);
}
infos->nb_au_headers = 1;
return 0;
} | ['static int rtp_parse_mp4_au(RTPDemuxContext *s, const uint8_t *buf)\n{\n int au_headers_length, au_header_size, i;\n GetBitContext getbitcontext;\n RTPPayloadData *infos;\n infos = s->rtp_payload_data;\n if (infos == NULL)\n return -1;\n au_headers_length = AV_RB16(buf);\n if (au_headers_length > RTP_MAX_PACKET_LENGTH)\n return -1;\n infos->au_headers_length_bytes = (au_headers_length + 7) / 8;\n buf += 2;\n init_get_bits(&getbitcontext, buf, infos->au_headers_length_bytes * 8);\n au_header_size = infos->sizelength + infos->indexlength;\n if (au_header_size <= 0 || (au_headers_length % au_header_size != 0))\n return -1;\n infos->nb_au_headers = au_headers_length / au_header_size;\n infos->au_headers = av_malloc(sizeof(struct AUHeaders) * infos->nb_au_headers);\n infos->au_headers[0].size = 0;\n infos->au_headers[0].index = 0;\n for (i = 0; i < infos->nb_au_headers; ++i) {\n infos->au_headers[0].size += get_bits_long(&getbitcontext, infos->sizelength);\n infos->au_headers[0].index = get_bits_long(&getbitcontext, infos->indexlength);\n }\n infos->nb_au_headers = 1;\n return 0;\n}', 'static av_always_inline av_const uint16_t bswap_16(uint16_t x)\n{\n x= (x>>8) | (x<<8);\n return x;\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}', '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}'] |
17,498 | 0 | https://github.com/openssl/openssl/blob/b6a8916102b9bf84b33ade2030079d76d9ba60f6/crypto/mem.c/#L226 | void CRYPTO_free(void *str, const char *file, int line)
{
if (free_impl != NULL && free_impl != &CRYPTO_free) {
free_impl(str, file, line);
return;
}
#ifndef OPENSSL_NO_CRYPTO_MDEBUG
if (call_malloc_debug) {
CRYPTO_mem_debug_free(str, 0, file, line);
free(str);
CRYPTO_mem_debug_free(str, 1, file, line);
} else {
free(str);
}
#else
free(str);
#endif
} | ['int EVP_MD_CTX_copy(EVP_MD_CTX *out, const EVP_MD_CTX *in)\n{\n EVP_MD_CTX_reset(out);\n return EVP_MD_CTX_copy_ex(out, in);\n}', 'int EVP_MD_CTX_reset(EVP_MD_CTX *ctx)\n{\n if (ctx == NULL)\n return 1;\n if (ctx->digest && ctx->digest->cleanup\n && !EVP_MD_CTX_test_flags(ctx, EVP_MD_CTX_FLAG_CLEANED))\n ctx->digest->cleanup(ctx);\n if (ctx->digest && ctx->digest->ctx_size && ctx->md_data\n && !EVP_MD_CTX_test_flags(ctx, EVP_MD_CTX_FLAG_REUSE)) {\n OPENSSL_clear_free(ctx->md_data, ctx->digest->ctx_size);\n }\n EVP_PKEY_CTX_free(ctx->pctx);\n#ifndef OPENSSL_NO_ENGINE\n ENGINE_finish(ctx->engine);\n#endif\n memset(ctx, 0, sizeof(*ctx));\n return 1;\n}', 'void EVP_PKEY_CTX_free(EVP_PKEY_CTX *ctx)\n{\n if (ctx == NULL)\n return;\n if (ctx->pmeth && ctx->pmeth->cleanup)\n ctx->pmeth->cleanup(ctx);\n EVP_PKEY_free(ctx->pkey);\n EVP_PKEY_free(ctx->peerkey);\n#ifndef OPENSSL_NO_ENGINE\n ENGINE_finish(ctx->engine);\n#endif\n OPENSSL_free(ctx);\n}', 'void EVP_PKEY_free(EVP_PKEY *x)\n{\n int i;\n if (x == NULL)\n return;\n i = CRYPTO_add(&x->references, -1, CRYPTO_LOCK_EVP_PKEY);\n REF_PRINT_COUNT("EVP_PKEY", x);\n if (i > 0)\n return;\n REF_ASSERT_ISNT(i < 0);\n EVP_PKEY_free_it(x);\n sk_X509_ATTRIBUTE_pop_free(x->attributes, X509_ATTRIBUTE_free);\n OPENSSL_free(x);\n}', 'void CRYPTO_free(void *str, const char *file, int line)\n{\n if (free_impl != NULL && free_impl != &CRYPTO_free) {\n free_impl(str, file, line);\n return;\n }\n#ifndef OPENSSL_NO_CRYPTO_MDEBUG\n if (call_malloc_debug) {\n CRYPTO_mem_debug_free(str, 0, file, line);\n free(str);\n CRYPTO_mem_debug_free(str, 1, file, line);\n } else {\n free(str);\n }\n#else\n free(str);\n#endif\n}'] |
17,499 | 0 | https://github.com/openssl/openssl/blob/4b1043ef1b54b0cf27d00cff9ff9a63f2c523e63/crypto/x509/x509_vfy.c/#L2730 | static int build_chain(X509_STORE_CTX *ctx)
{
struct dane_st *dane = (struct dane_st *)ctx->dane;
int num = sk_X509_num(ctx->chain);
X509 *cert = sk_X509_value(ctx->chain, num - 1);
int ss = cert_self_signed(cert);
STACK_OF(X509) *sktmp = NULL;
unsigned int search;
int may_trusted = 0;
int may_alternate = 0;
int trust = X509_TRUST_UNTRUSTED;
int alt_untrusted = 0;
int depth;
int ok = 0;
int i;
OPENSSL_assert(num == 1 && ctx->num_untrusted == num);
#define S_DOUNTRUSTED (1 << 0)
#define S_DOTRUSTED (1 << 1)
#define S_DOALTERNATE (1 << 2)
search = (ctx->untrusted != NULL) ? S_DOUNTRUSTED : 0;
if (DANETLS_HAS_PKIX(dane) || !DANETLS_HAS_DANE(dane)) {
if (search == 0 || ctx->param->flags & X509_V_FLAG_TRUSTED_FIRST)
search |= S_DOTRUSTED;
else if (!(ctx->param->flags & X509_V_FLAG_NO_ALT_CHAINS))
may_alternate = 1;
may_trusted = 1;
}
if (ctx->untrusted && (sktmp = sk_X509_dup(ctx->untrusted)) == NULL) {
X509err(X509_F_BUILD_CHAIN, ERR_R_MALLOC_FAILURE);
return 0;
}
if (DANETLS_ENABLED(dane) && dane->certs != NULL) {
for (i = 0; i < sk_X509_num(dane->certs); ++i) {
if (!sk_X509_push(sktmp, sk_X509_value(dane->certs, i))) {
sk_X509_free(sktmp);
X509err(X509_F_BUILD_CHAIN, ERR_R_MALLOC_FAILURE);
return 0;
}
}
}
if (ctx->param->depth > INT_MAX/2)
ctx->param->depth = INT_MAX/2;
depth = ctx->param->depth + 1;
while (search != 0) {
X509 *x;
X509 *xtmp = NULL;
if ((search & S_DOTRUSTED) != 0) {
STACK_OF(X509) *hide = ctx->chain;
i = num = sk_X509_num(ctx->chain);
if ((search & S_DOALTERNATE) != 0) {
i = alt_untrusted;
}
x = sk_X509_value(ctx->chain, i-1);
ctx->chain = NULL;
ok = (depth < num) ? 0 : ctx->get_issuer(&xtmp, ctx, x);
ctx->chain = hide;
if (ok < 0) {
trust = X509_TRUST_REJECTED;
search = 0;
continue;
}
if (ok > 0) {
if ((search & S_DOALTERNATE) != 0) {
OPENSSL_assert(num > i && i > 0 && ss == 0);
search &= ~S_DOALTERNATE;
for (; num > i; --num)
X509_free(sk_X509_pop(ctx->chain));
ctx->num_untrusted = num;
if (DANETLS_ENABLED(dane) &&
dane->mdpth >= ctx->num_untrusted) {
dane->mdpth = -1;
X509_free(dane->mcert);
dane->mcert = NULL;
}
if (DANETLS_ENABLED(dane) &&
dane->pdpth >= ctx->num_untrusted)
dane->pdpth = -1;
}
if (ss == 0) {
if (!sk_X509_push(ctx->chain, x = xtmp)) {
X509_free(xtmp);
X509err(X509_F_BUILD_CHAIN, ERR_R_MALLOC_FAILURE);
trust = X509_TRUST_REJECTED;
search = 0;
continue;
}
ss = cert_self_signed(x);
} else if (num == ctx->num_untrusted) {
if (X509_cmp(x, xtmp) != 0) {
X509_free(xtmp);
ok = 0;
} else {
X509_free(x);
ctx->num_untrusted = --num;
(void) sk_X509_set(ctx->chain, num, x = xtmp);
}
}
if (ok) {
OPENSSL_assert(ctx->num_untrusted <= num);
search &= ~S_DOUNTRUSTED;
switch (trust = check_trust(ctx, num)) {
case X509_TRUST_TRUSTED:
case X509_TRUST_REJECTED:
search = 0;
continue;
}
if (ss == 0)
continue;
}
}
if ((search & S_DOUNTRUSTED) == 0) {
if ((search & S_DOALTERNATE) != 0 && --alt_untrusted > 0)
continue;
if (!may_alternate || (search & S_DOALTERNATE) != 0 ||
ctx->num_untrusted < 2)
break;
search |= S_DOALTERNATE;
alt_untrusted = ctx->num_untrusted - 1;
ss = 0;
}
}
if ((search & S_DOUNTRUSTED) != 0) {
num = sk_X509_num(ctx->chain);
OPENSSL_assert(num == ctx->num_untrusted);
x = sk_X509_value(ctx->chain, num-1);
xtmp = (depth < num) ? NULL : find_issuer(ctx, sktmp, x);
if (xtmp == NULL) {
search &= ~S_DOUNTRUSTED;
if (may_trusted)
search |= S_DOTRUSTED;
continue;
}
if (!sk_X509_push(ctx->chain, x = xtmp)) {
X509err(X509_F_BUILD_CHAIN, ERR_R_MALLOC_FAILURE);
trust = X509_TRUST_REJECTED;
search = 0;
continue;
}
X509_up_ref(x);
++ctx->num_untrusted;
ss = cert_self_signed(xtmp);
(void) sk_X509_delete_ptr(sktmp, x);
switch (trust = check_dane_issuer(ctx, ctx->num_untrusted - 1)) {
case X509_TRUST_TRUSTED:
case X509_TRUST_REJECTED:
search = 0;
continue;
}
}
}
sk_X509_free(sktmp);
num = sk_X509_num(ctx->chain);
if (num <= depth) {
if (trust == X509_TRUST_UNTRUSTED && DANETLS_HAS_DANE_TA(dane))
trust = check_dane_pkeys(ctx);
if (trust == X509_TRUST_UNTRUSTED && num == ctx->num_untrusted)
trust = check_trust(ctx, num);
}
switch (trust) {
case X509_TRUST_TRUSTED:
return 1;
case X509_TRUST_REJECTED:
return 0;
case X509_TRUST_UNTRUSTED:
default:
num = sk_X509_num(ctx->chain);
ctx->current_cert = sk_X509_value(ctx->chain, num - 1);
ctx->error_depth = num-1;
if (num > depth)
ctx->error = X509_V_ERR_CERT_CHAIN_TOO_LONG;
else if (DANETLS_ENABLED(dane) &&
(!DANETLS_HAS_PKIX(dane) || dane->pdpth >= 0))
ctx->error = X509_V_ERR_CERT_UNTRUSTED;
else if (ss && sk_X509_num(ctx->chain) == 1)
ctx->error = X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT;
else if (ss)
ctx->error = X509_V_ERR_SELF_SIGNED_CERT_IN_CHAIN;
else if (ctx->num_untrusted == num)
ctx->error = X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT_LOCALLY;
else
ctx->error = X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT;
if (DANETLS_ENABLED(dane))
dane_reset(dane);
return ctx->verify_cb(0, ctx);
}
} | ['static int build_chain(X509_STORE_CTX *ctx)\n{\n struct dane_st *dane = (struct dane_st *)ctx->dane;\n int num = sk_X509_num(ctx->chain);\n X509 *cert = sk_X509_value(ctx->chain, num - 1);\n int ss = cert_self_signed(cert);\n STACK_OF(X509) *sktmp = NULL;\n unsigned int search;\n int may_trusted = 0;\n int may_alternate = 0;\n int trust = X509_TRUST_UNTRUSTED;\n int alt_untrusted = 0;\n int depth;\n int ok = 0;\n int i;\n OPENSSL_assert(num == 1 && ctx->num_untrusted == num);\n#define S_DOUNTRUSTED (1 << 0)\n#define S_DOTRUSTED (1 << 1)\n#define S_DOALTERNATE (1 << 2)\n search = (ctx->untrusted != NULL) ? S_DOUNTRUSTED : 0;\n if (DANETLS_HAS_PKIX(dane) || !DANETLS_HAS_DANE(dane)) {\n if (search == 0 || ctx->param->flags & X509_V_FLAG_TRUSTED_FIRST)\n search |= S_DOTRUSTED;\n else if (!(ctx->param->flags & X509_V_FLAG_NO_ALT_CHAINS))\n may_alternate = 1;\n may_trusted = 1;\n }\n if (ctx->untrusted && (sktmp = sk_X509_dup(ctx->untrusted)) == NULL) {\n X509err(X509_F_BUILD_CHAIN, ERR_R_MALLOC_FAILURE);\n return 0;\n }\n if (DANETLS_ENABLED(dane) && dane->certs != NULL) {\n for (i = 0; i < sk_X509_num(dane->certs); ++i) {\n if (!sk_X509_push(sktmp, sk_X509_value(dane->certs, i))) {\n sk_X509_free(sktmp);\n X509err(X509_F_BUILD_CHAIN, ERR_R_MALLOC_FAILURE);\n return 0;\n }\n }\n }\n if (ctx->param->depth > INT_MAX/2)\n ctx->param->depth = INT_MAX/2;\n depth = ctx->param->depth + 1;\n while (search != 0) {\n X509 *x;\n X509 *xtmp = NULL;\n if ((search & S_DOTRUSTED) != 0) {\n STACK_OF(X509) *hide = ctx->chain;\n i = num = sk_X509_num(ctx->chain);\n if ((search & S_DOALTERNATE) != 0) {\n i = alt_untrusted;\n }\n x = sk_X509_value(ctx->chain, i-1);\n ctx->chain = NULL;\n ok = (depth < num) ? 0 : ctx->get_issuer(&xtmp, ctx, x);\n ctx->chain = hide;\n if (ok < 0) {\n trust = X509_TRUST_REJECTED;\n search = 0;\n continue;\n }\n if (ok > 0) {\n if ((search & S_DOALTERNATE) != 0) {\n OPENSSL_assert(num > i && i > 0 && ss == 0);\n search &= ~S_DOALTERNATE;\n for (; num > i; --num)\n X509_free(sk_X509_pop(ctx->chain));\n ctx->num_untrusted = num;\n if (DANETLS_ENABLED(dane) &&\n dane->mdpth >= ctx->num_untrusted) {\n dane->mdpth = -1;\n X509_free(dane->mcert);\n dane->mcert = NULL;\n }\n if (DANETLS_ENABLED(dane) &&\n dane->pdpth >= ctx->num_untrusted)\n dane->pdpth = -1;\n }\n if (ss == 0) {\n if (!sk_X509_push(ctx->chain, x = xtmp)) {\n X509_free(xtmp);\n X509err(X509_F_BUILD_CHAIN, ERR_R_MALLOC_FAILURE);\n trust = X509_TRUST_REJECTED;\n search = 0;\n continue;\n }\n ss = cert_self_signed(x);\n } else if (num == ctx->num_untrusted) {\n if (X509_cmp(x, xtmp) != 0) {\n X509_free(xtmp);\n ok = 0;\n } else {\n X509_free(x);\n ctx->num_untrusted = --num;\n (void) sk_X509_set(ctx->chain, num, x = xtmp);\n }\n }\n if (ok) {\n OPENSSL_assert(ctx->num_untrusted <= num);\n search &= ~S_DOUNTRUSTED;\n switch (trust = check_trust(ctx, num)) {\n case X509_TRUST_TRUSTED:\n case X509_TRUST_REJECTED:\n search = 0;\n continue;\n }\n if (ss == 0)\n continue;\n }\n }\n if ((search & S_DOUNTRUSTED) == 0) {\n if ((search & S_DOALTERNATE) != 0 && --alt_untrusted > 0)\n continue;\n if (!may_alternate || (search & S_DOALTERNATE) != 0 ||\n ctx->num_untrusted < 2)\n break;\n search |= S_DOALTERNATE;\n alt_untrusted = ctx->num_untrusted - 1;\n ss = 0;\n }\n }\n if ((search & S_DOUNTRUSTED) != 0) {\n num = sk_X509_num(ctx->chain);\n OPENSSL_assert(num == ctx->num_untrusted);\n x = sk_X509_value(ctx->chain, num-1);\n xtmp = (depth < num) ? NULL : find_issuer(ctx, sktmp, x);\n if (xtmp == NULL) {\n search &= ~S_DOUNTRUSTED;\n if (may_trusted)\n search |= S_DOTRUSTED;\n continue;\n }\n if (!sk_X509_push(ctx->chain, x = xtmp)) {\n X509err(X509_F_BUILD_CHAIN, ERR_R_MALLOC_FAILURE);\n trust = X509_TRUST_REJECTED;\n search = 0;\n continue;\n }\n X509_up_ref(x);\n ++ctx->num_untrusted;\n ss = cert_self_signed(xtmp);\n (void) sk_X509_delete_ptr(sktmp, x);\n switch (trust = check_dane_issuer(ctx, ctx->num_untrusted - 1)) {\n case X509_TRUST_TRUSTED:\n case X509_TRUST_REJECTED:\n search = 0;\n continue;\n }\n }\n }\n sk_X509_free(sktmp);\n num = sk_X509_num(ctx->chain);\n if (num <= depth) {\n if (trust == X509_TRUST_UNTRUSTED && DANETLS_HAS_DANE_TA(dane))\n trust = check_dane_pkeys(ctx);\n if (trust == X509_TRUST_UNTRUSTED && num == ctx->num_untrusted)\n trust = check_trust(ctx, num);\n }\n switch (trust) {\n case X509_TRUST_TRUSTED:\n return 1;\n case X509_TRUST_REJECTED:\n return 0;\n case X509_TRUST_UNTRUSTED:\n default:\n num = sk_X509_num(ctx->chain);\n ctx->current_cert = sk_X509_value(ctx->chain, num - 1);\n ctx->error_depth = num-1;\n if (num > depth)\n ctx->error = X509_V_ERR_CERT_CHAIN_TOO_LONG;\n else if (DANETLS_ENABLED(dane) &&\n (!DANETLS_HAS_PKIX(dane) || dane->pdpth >= 0))\n ctx->error = X509_V_ERR_CERT_UNTRUSTED;\n else if (ss && sk_X509_num(ctx->chain) == 1)\n ctx->error = X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT;\n else if (ss)\n ctx->error = X509_V_ERR_SELF_SIGNED_CERT_IN_CHAIN;\n else if (ctx->num_untrusted == num)\n ctx->error = X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT_LOCALLY;\n else\n ctx->error = X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT;\n if (DANETLS_ENABLED(dane))\n dane_reset(dane);\n return ctx->verify_cb(0, ctx);\n }\n}', 'DEFINE_STACK_OF(X509)', 'int sk_num(const _STACK *st)\n{\n if (st == NULL)\n return -1;\n return st->num;\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}', 'static int cert_self_signed(X509 *x)\n{\n X509_check_purpose(x, -1, 0);\n if (x->ex_flags & EXFLAG_SS)\n return 1;\n else\n return 0;\n}'] |
17,500 | 0 | https://github.com/openssl/openssl/blob/9b02dc97e4963969da69675a871dbe80e6d31cda/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 BN_mod_mul_reciprocal(BIGNUM *r, const BIGNUM *x, const BIGNUM *y,\n BN_RECP_CTX *recp, BN_CTX *ctx)\n{\n int ret = 0;\n BIGNUM *a;\n const BIGNUM *ca;\n BN_CTX_start(ctx);\n if ((a = BN_CTX_get(ctx)) == NULL)\n goto err;\n if (y != NULL) {\n if (x == y) {\n if (!BN_sqr(a, x, ctx))\n goto err;\n } else {\n if (!BN_mul(a, x, y, ctx))\n goto err;\n }\n ca = a;\n } else\n ca = x;\n ret = BN_div_recp(NULL, r, ca, recp, ctx);\n err:\n BN_CTX_end(ctx);\n bn_check_top(r);\n return ret;\n}', 'BIGNUM *BN_CTX_get(BN_CTX *ctx)\n{\n BIGNUM *ret;\n CTXDBG_ENTRY("BN_CTX_get", ctx);\n if (ctx->err_stack || ctx->too_many)\n return NULL;\n if ((ret = BN_POOL_get(&ctx->pool, ctx->flags)) == NULL) {\n ctx->too_many = 1;\n BNerr(BN_F_BN_CTX_GET, BN_R_TOO_MANY_TEMPORARY_VARIABLES);\n return NULL;\n }\n BN_zero(ret);\n 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_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 if (a->d[al - 1] == (a->d[al - 1] & BN_MASK2l))\n rr->top = max - 1;\n else\n rr->top = max;\n if (r != rr && BN_copy(r, rr) == NULL)\n goto err;\n ret = 1;\n err:\n bn_check_top(rr);\n bn_check_top(tmp);\n BN_CTX_end(ctx);\n return ret;\n}', 'BIGNUM *bn_wexpand(BIGNUM *a, int words)\n{\n return (words <= a->dmax) ? a : bn_expand2(a, words);\n}', 'BIGNUM *bn_expand2(BIGNUM *b, int words)\n{\n 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}'] |
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