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 |
|---|---|---|---|---|
23,101 | 0 | https://github.com/openssl/openssl/blob/f9df0a7775f483c175cda5832360cccd1db6943a/crypto/lhash/lhash.c/#L122 | void *OPENSSL_LH_delete(OPENSSL_LHASH *lh, const void *data)
{
unsigned long hash;
OPENSSL_LH_NODE *nn, **rn;
void *ret;
lh->error = 0;
rn = getrn(lh, data, &hash);
if (*rn == NULL) {
lh->num_no_delete++;
return NULL;
} else {
nn = *rn;
*rn = nn->next;
ret = nn->data;
OPENSSL_free(nn);
lh->num_delete++;
}
lh->num_items--;
if ((lh->num_nodes > MIN_NODES) &&
(lh->down_load >= (lh->num_items * LH_LOAD_MULT / lh->num_nodes)))
contract(lh);
return ret;
} | ['static int test_tlsext_status_type(void)\n{\n SSL_CTX *cctx = NULL, *sctx = NULL;\n SSL *clientssl = NULL, *serverssl = NULL;\n int testresult = 0;\n STACK_OF(OCSP_RESPID) *ids = NULL;\n OCSP_RESPID *id = NULL;\n BIO *certbio = NULL;\n if (!create_ssl_ctx_pair(TLS_server_method(), TLS_client_method(), &sctx,\n &cctx, cert, privkey))\n return 0;\n if (SSL_CTX_get_tlsext_status_type(cctx) != -1)\n goto end;\n clientssl = SSL_new(cctx);\n if (!TEST_int_eq(SSL_get_tlsext_status_type(clientssl), -1)\n || !TEST_true(SSL_set_tlsext_status_type(clientssl,\n TLSEXT_STATUSTYPE_ocsp))\n || !TEST_int_eq(SSL_get_tlsext_status_type(clientssl),\n TLSEXT_STATUSTYPE_ocsp))\n goto end;\n SSL_free(clientssl);\n clientssl = NULL;\n if (!SSL_CTX_set_tlsext_status_type(cctx, TLSEXT_STATUSTYPE_ocsp)\n || SSL_CTX_get_tlsext_status_type(cctx) != TLSEXT_STATUSTYPE_ocsp)\n goto end;\n clientssl = SSL_new(cctx);\n if (SSL_get_tlsext_status_type(clientssl) != TLSEXT_STATUSTYPE_ocsp)\n goto end;\n SSL_free(clientssl);\n clientssl = NULL;\n SSL_CTX_set_tlsext_status_cb(cctx, ocsp_client_cb);\n SSL_CTX_set_tlsext_status_arg(cctx, &cdummyarg);\n SSL_CTX_set_tlsext_status_cb(sctx, ocsp_server_cb);\n SSL_CTX_set_tlsext_status_arg(sctx, &cdummyarg);\n if (!TEST_true(create_ssl_objects(sctx, cctx, &serverssl,\n &clientssl, NULL, NULL))\n || !TEST_true(create_ssl_connection(serverssl, clientssl,\n SSL_ERROR_NONE))\n || !TEST_true(ocsp_client_called)\n || !TEST_true(ocsp_server_called))\n goto end;\n SSL_free(serverssl);\n SSL_free(clientssl);\n serverssl = NULL;\n clientssl = NULL;\n ocsp_client_called = 0;\n ocsp_server_called = 0;\n cdummyarg = 0;\n if (!TEST_true(create_ssl_objects(sctx, cctx, &serverssl,\n &clientssl, NULL, NULL))\n || !TEST_false(create_ssl_connection(serverssl, clientssl,\n SSL_ERROR_NONE))\n || !TEST_false(ocsp_client_called)\n || !TEST_false(ocsp_server_called))\n goto end;\n SSL_free(serverssl);\n SSL_free(clientssl);\n serverssl = NULL;\n clientssl = NULL;\n ocsp_client_called = 0;\n ocsp_server_called = 0;\n cdummyarg = 2;\n if (!TEST_true(create_ssl_objects(sctx, cctx, &serverssl,\n &clientssl, NULL, NULL)))\n goto end;\n if (!TEST_ptr(certbio = BIO_new_file(cert, "r"))\n || !TEST_ptr(id = OCSP_RESPID_new())\n || !TEST_ptr(ids = sk_OCSP_RESPID_new_null())\n || !TEST_ptr(ocspcert = PEM_read_bio_X509(certbio,\n NULL, NULL, NULL))\n || !TEST_true(OCSP_RESPID_set_by_key(id, ocspcert))\n || !TEST_true(sk_OCSP_RESPID_push(ids, id)))\n goto end;\n id = NULL;\n SSL_set_tlsext_status_ids(clientssl, ids);\n ids = NULL;\n BIO_free(certbio);\n certbio = NULL;\n if (!TEST_true(create_ssl_connection(serverssl, clientssl,\n SSL_ERROR_NONE))\n || !TEST_true(ocsp_client_called)\n || !TEST_true(ocsp_server_called))\n goto end;\n testresult = 1;\n end:\n SSL_free(serverssl);\n SSL_free(clientssl);\n SSL_CTX_free(sctx);\n SSL_CTX_free(cctx);\n sk_OCSP_RESPID_pop_free(ids, OCSP_RESPID_free);\n OCSP_RESPID_free(id);\n BIO_free(certbio);\n X509_free(ocspcert);\n ocspcert = NULL;\n return testresult;\n}', 'SSL *SSL_new(SSL_CTX *ctx)\n{\n SSL *s;\n if (ctx == NULL) {\n SSLerr(SSL_F_SSL_NEW, SSL_R_NULL_SSL_CTX);\n return (NULL);\n }\n if (ctx->method == NULL) {\n SSLerr(SSL_F_SSL_NEW, SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION);\n return (NULL);\n }\n s = OPENSSL_zalloc(sizeof(*s));\n if (s == NULL)\n goto err;\n s->lock = CRYPTO_THREAD_lock_new();\n if (s->lock == NULL)\n goto err;\n if (RAND_get_rand_method() == RAND_OpenSSL()) {\n s->drbg = RAND_DRBG_new(NID_aes_128_ctr, RAND_DRBG_FLAG_CTR_USE_DF,\n RAND_DRBG_get0_global());\n if (s->drbg == NULL\n || RAND_DRBG_instantiate(s->drbg, NULL, 0) == 0) {\n CRYPTO_THREAD_lock_free(s->lock);\n goto err;\n }\n }\n RECORD_LAYER_init(&s->rlayer, s);\n s->options = ctx->options;\n s->dane.flags = ctx->dane.flags;\n s->min_proto_version = ctx->min_proto_version;\n s->max_proto_version = ctx->max_proto_version;\n s->mode = ctx->mode;\n s->max_cert_list = ctx->max_cert_list;\n s->references = 1;\n s->max_early_data = ctx->max_early_data;\n s->cert = ssl_cert_dup(ctx->cert);\n if (s->cert == NULL)\n goto err;\n RECORD_LAYER_set_read_ahead(&s->rlayer, ctx->read_ahead);\n s->msg_callback = ctx->msg_callback;\n s->msg_callback_arg = ctx->msg_callback_arg;\n s->verify_mode = ctx->verify_mode;\n s->not_resumable_session_cb = ctx->not_resumable_session_cb;\n s->record_padding_cb = ctx->record_padding_cb;\n s->record_padding_arg = ctx->record_padding_arg;\n s->block_padding = ctx->block_padding;\n s->sid_ctx_length = ctx->sid_ctx_length;\n if (!ossl_assert(s->sid_ctx_length <= sizeof s->sid_ctx))\n goto err;\n memcpy(&s->sid_ctx, &ctx->sid_ctx, sizeof(s->sid_ctx));\n s->verify_callback = ctx->default_verify_callback;\n s->generate_session_id = ctx->generate_session_id;\n s->param = X509_VERIFY_PARAM_new();\n if (s->param == NULL)\n goto err;\n X509_VERIFY_PARAM_inherit(s->param, ctx->param);\n s->quiet_shutdown = ctx->quiet_shutdown;\n s->max_send_fragment = ctx->max_send_fragment;\n s->split_send_fragment = ctx->split_send_fragment;\n s->max_pipelines = ctx->max_pipelines;\n if (s->max_pipelines > 1)\n RECORD_LAYER_set_read_ahead(&s->rlayer, 1);\n if (ctx->default_read_buf_len > 0)\n SSL_set_default_read_buffer_len(s, ctx->default_read_buf_len);\n SSL_CTX_up_ref(ctx);\n s->ctx = ctx;\n s->ext.debug_cb = 0;\n s->ext.debug_arg = NULL;\n s->ext.ticket_expected = 0;\n s->ext.status_type = ctx->ext.status_type;\n s->ext.status_expected = 0;\n s->ext.ocsp.ids = NULL;\n s->ext.ocsp.exts = NULL;\n s->ext.ocsp.resp = NULL;\n s->ext.ocsp.resp_len = 0;\n SSL_CTX_up_ref(ctx);\n s->session_ctx = ctx;\n#ifndef OPENSSL_NO_EC\n if (ctx->ext.ecpointformats) {\n s->ext.ecpointformats =\n OPENSSL_memdup(ctx->ext.ecpointformats,\n ctx->ext.ecpointformats_len);\n if (!s->ext.ecpointformats)\n goto err;\n s->ext.ecpointformats_len =\n ctx->ext.ecpointformats_len;\n }\n if (ctx->ext.supportedgroups) {\n s->ext.supportedgroups =\n OPENSSL_memdup(ctx->ext.supportedgroups,\n ctx->ext.supportedgroups_len\n * sizeof(*ctx->ext.supportedgroups));\n if (!s->ext.supportedgroups)\n goto err;\n s->ext.supportedgroups_len = ctx->ext.supportedgroups_len;\n }\n#endif\n#ifndef OPENSSL_NO_NEXTPROTONEG\n s->ext.npn = NULL;\n#endif\n if (s->ctx->ext.alpn) {\n s->ext.alpn = OPENSSL_malloc(s->ctx->ext.alpn_len);\n if (s->ext.alpn == NULL)\n goto err;\n memcpy(s->ext.alpn, s->ctx->ext.alpn, s->ctx->ext.alpn_len);\n s->ext.alpn_len = s->ctx->ext.alpn_len;\n }\n s->verified_chain = NULL;\n s->verify_result = X509_V_OK;\n s->default_passwd_callback = ctx->default_passwd_callback;\n s->default_passwd_callback_userdata = ctx->default_passwd_callback_userdata;\n s->method = ctx->method;\n s->key_update = SSL_KEY_UPDATE_NONE;\n if (!s->method->ssl_new(s))\n goto err;\n s->server = (ctx->method->ssl_accept == ssl_undefined_function) ? 0 : 1;\n if (!SSL_clear(s))\n goto err;\n if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data))\n goto err;\n#ifndef OPENSSL_NO_PSK\n s->psk_client_callback = ctx->psk_client_callback;\n s->psk_server_callback = ctx->psk_server_callback;\n#endif\n s->psk_find_session_cb = ctx->psk_find_session_cb;\n s->psk_use_session_cb = ctx->psk_use_session_cb;\n s->job = NULL;\n#ifndef OPENSSL_NO_CT\n if (!SSL_set_ct_validation_callback(s, ctx->ct_validation_callback,\n ctx->ct_validation_callback_arg))\n goto err;\n#endif\n return s;\n err:\n SSL_free(s);\n SSLerr(SSL_F_SSL_NEW, ERR_R_MALLOC_FAILURE);\n return NULL;\n}', 'void SSL_free(SSL *s)\n{\n int i;\n if (s == NULL)\n return;\n CRYPTO_DOWN_REF(&s->references, &i, s->lock);\n REF_PRINT_COUNT("SSL", s);\n if (i > 0)\n return;\n REF_ASSERT_ISNT(i < 0);\n X509_VERIFY_PARAM_free(s->param);\n dane_final(&s->dane);\n CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);\n ssl_free_wbio_buffer(s);\n BIO_free_all(s->wbio);\n BIO_free_all(s->rbio);\n BUF_MEM_free(s->init_buf);\n sk_SSL_CIPHER_free(s->cipher_list);\n sk_SSL_CIPHER_free(s->cipher_list_by_id);\n 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 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 RAND_DRBG_free(s->drbg);\n CRYPTO_THREAD_lock_free(s->lock);\n OPENSSL_free(s);\n}', 'int ssl_clear_bad_session(SSL *s)\n{\n if ((s->session != NULL) &&\n !(s->shutdown & SSL_SENT_SHUTDOWN) &&\n !(SSL_in_init(s) || SSL_in_before(s))) {\n SSL_CTX_remove_session(s->session_ctx, s->session);\n return 1;\n } else\n return (0);\n}', 'int SSL_CTX_remove_session(SSL_CTX *ctx, SSL_SESSION *c)\n{\n return remove_session_lock(ctx, c, 1);\n}', 'static int remove_session_lock(SSL_CTX *ctx, SSL_SESSION *c, int lck)\n{\n SSL_SESSION *r;\n int ret = 0;\n if ((c != NULL) && (c->session_id_length != 0)) {\n if (lck)\n CRYPTO_THREAD_write_lock(ctx->lock);\n if ((r = lh_SSL_SESSION_retrieve(ctx->sessions, c)) == c) {\n ret = 1;\n r = lh_SSL_SESSION_delete(ctx->sessions, c);\n SSL_SESSION_list_remove(ctx, c);\n }\n c->not_resumable = 1;\n if (lck)\n CRYPTO_THREAD_unlock(ctx->lock);\n if (ret)\n SSL_SESSION_free(r);\n if (ctx->remove_session_cb != NULL)\n ctx->remove_session_cb(ctx, c);\n } else\n ret = 0;\n return (ret);\n}', 'DEFINE_LHASH_OF(SSL_SESSION)', 'void *OPENSSL_LH_delete(OPENSSL_LHASH *lh, const void *data)\n{\n unsigned long hash;\n OPENSSL_LH_NODE *nn, **rn;\n void *ret;\n lh->error = 0;\n rn = getrn(lh, data, &hash);\n if (*rn == NULL) {\n lh->num_no_delete++;\n return NULL;\n } else {\n nn = *rn;\n *rn = nn->next;\n ret = nn->data;\n OPENSSL_free(nn);\n lh->num_delete++;\n }\n lh->num_items--;\n if ((lh->num_nodes > MIN_NODES) &&\n (lh->down_load >= (lh->num_items * LH_LOAD_MULT / lh->num_nodes)))\n contract(lh);\n return ret;\n}'] |
23,102 | 0 | https://github.com/libav/libav/blob/555000c7d5c1e13043a948ebc48d2939b0ba6536/libavformat/utils.c/#L2638 | void avformat_free_context(AVFormatContext *s)
{
int i;
AVStream *st;
av_opt_free(s);
if (s->iformat && s->iformat->priv_class && s->priv_data)
av_opt_free(s->priv_data);
for(i=0;i<s->nb_streams;i++) {
st = s->streams[i];
if (st->parser) {
av_parser_close(st->parser);
}
if (st->attached_pic.data)
av_free_packet(&st->attached_pic);
av_dict_free(&st->metadata);
av_free(st->index_entries);
av_free(st->codec->extradata);
av_free(st->codec->subtitle_header);
av_free(st->codec);
av_free(st->priv_data);
av_free(st->info);
av_free(st);
}
for(i=s->nb_programs-1; i>=0; i--) {
av_dict_free(&s->programs[i]->metadata);
av_freep(&s->programs[i]->stream_index);
av_freep(&s->programs[i]);
}
av_freep(&s->programs);
av_freep(&s->priv_data);
while(s->nb_chapters--) {
av_dict_free(&s->chapters[s->nb_chapters]->metadata);
av_free(s->chapters[s->nb_chapters]);
}
av_freep(&s->chapters);
av_dict_free(&s->metadata);
av_freep(&s->streams);
av_free(s);
} | ['static int avi_read_close(AVFormatContext *s)\n{\n int i;\n AVIContext *avi = s->priv_data;\n for(i=0;i<s->nb_streams;i++) {\n AVStream *st = s->streams[i];\n AVIStream *ast = st->priv_data;\n if (ast) {\n if (ast->sub_ctx) {\n av_freep(&ast->sub_ctx->pb);\n avformat_close_input(&ast->sub_ctx);\n }\n av_free(ast->sub_buffer);\n av_free_packet(&ast->sub_pkt);\n }\n }\n av_free(avi->dv_demux);\n return 0;\n}', 'void av_freep(void *arg)\n{\n void **ptr = (void **)arg;\n av_free(*ptr);\n *ptr = NULL;\n}', 'void avformat_close_input(AVFormatContext **ps)\n{\n AVFormatContext *s = *ps;\n AVIOContext *pb = s->pb;\n if ((s->iformat && s->iformat->flags & AVFMT_NOFILE) ||\n (s->flags & AVFMT_FLAG_CUSTOM_IO))\n pb = NULL;\n flush_packet_queue(s);\n if (s->iformat) {\n if (s->iformat->read_close)\n s->iformat->read_close(s);\n }\n avformat_free_context(s);\n *ps = NULL;\n avio_close(pb);\n}', 'void avformat_free_context(AVFormatContext *s)\n{\n int i;\n AVStream *st;\n av_opt_free(s);\n if (s->iformat && s->iformat->priv_class && s->priv_data)\n av_opt_free(s->priv_data);\n for(i=0;i<s->nb_streams;i++) {\n st = s->streams[i];\n if (st->parser) {\n av_parser_close(st->parser);\n }\n if (st->attached_pic.data)\n av_free_packet(&st->attached_pic);\n av_dict_free(&st->metadata);\n av_free(st->index_entries);\n av_free(st->codec->extradata);\n av_free(st->codec->subtitle_header);\n av_free(st->codec);\n av_free(st->priv_data);\n av_free(st->info);\n av_free(st);\n }\n for(i=s->nb_programs-1; i>=0; i--) {\n av_dict_free(&s->programs[i]->metadata);\n av_freep(&s->programs[i]->stream_index);\n av_freep(&s->programs[i]);\n }\n av_freep(&s->programs);\n av_freep(&s->priv_data);\n while(s->nb_chapters--) {\n av_dict_free(&s->chapters[s->nb_chapters]->metadata);\n av_free(s->chapters[s->nb_chapters]);\n }\n av_freep(&s->chapters);\n av_dict_free(&s->metadata);\n av_freep(&s->streams);\n av_free(s);\n}'] |
23,103 | 1 | https://github.com/openssl/openssl/blob/3da2e9c4ee45989a426ff513dc6c6250d1e460de/crypto/bn/bn_lib.c/#L232 | static BN_ULONG *bn_expand_internal(const BIGNUM *b, int words)
{
BN_ULONG *a = NULL;
if (words > (INT_MAX / (4 * BN_BITS2))) {
BNerr(BN_F_BN_EXPAND_INTERNAL, BN_R_BIGNUM_TOO_LONG);
return NULL;
}
if (BN_get_flags(b, BN_FLG_STATIC_DATA)) {
BNerr(BN_F_BN_EXPAND_INTERNAL, BN_R_EXPAND_ON_STATIC_BIGNUM_DATA);
return NULL;
}
if (BN_get_flags(b, BN_FLG_SECURE))
a = OPENSSL_secure_zalloc(words * sizeof(*a));
else
a = OPENSSL_zalloc(words * sizeof(*a));
if (a == NULL) {
BNerr(BN_F_BN_EXPAND_INTERNAL, ERR_R_MALLOC_FAILURE);
return NULL;
}
assert(b->top <= words);
if (b->top > 0)
memcpy(a, b->d, sizeof(*a) * b->top);
return a;
} | ['int BN_div(BIGNUM *dv, BIGNUM *rm, const BIGNUM *num, const BIGNUM *divisor,\n BN_CTX *ctx)\n{\n int norm_shift, i, j, loop;\n BIGNUM *tmp, wnum, *snum, *sdiv, *res;\n BN_ULONG *resp, *wnump;\n BN_ULONG d0, d1;\n int num_n, div_n;\n int no_branch = 0;\n if ((num->top > 0 && num->d[num->top - 1] == 0) ||\n (divisor->top > 0 && divisor->d[divisor->top - 1] == 0)) {\n BNerr(BN_F_BN_DIV, BN_R_NOT_INITIALIZED);\n return 0;\n }\n bn_check_top(num);\n bn_check_top(divisor);\n if ((BN_get_flags(num, BN_FLG_CONSTTIME) != 0)\n || (BN_get_flags(divisor, BN_FLG_CONSTTIME) != 0)) {\n no_branch = 1;\n }\n bn_check_top(dv);\n bn_check_top(rm);\n if (BN_is_zero(divisor)) {\n BNerr(BN_F_BN_DIV, BN_R_DIV_BY_ZERO);\n return 0;\n }\n if (!no_branch && BN_ucmp(num, divisor) < 0) {\n if (rm != NULL) {\n if (BN_copy(rm, num) == NULL)\n return 0;\n }\n if (dv != NULL)\n BN_zero(dv);\n return 1;\n }\n BN_CTX_start(ctx);\n res = (dv == NULL) ? BN_CTX_get(ctx) : dv;\n tmp = BN_CTX_get(ctx);\n snum = BN_CTX_get(ctx);\n sdiv = BN_CTX_get(ctx);\n if (sdiv == NULL)\n goto err;\n norm_shift = BN_BITS2 - ((BN_num_bits(divisor)) % BN_BITS2);\n if (!(BN_lshift(sdiv, divisor, norm_shift)))\n goto err;\n sdiv->neg = 0;\n norm_shift += BN_BITS2;\n if (!(BN_lshift(snum, num, norm_shift)))\n goto err;\n snum->neg = 0;\n if (no_branch) {\n if (snum->top <= sdiv->top + 1) {\n if (bn_wexpand(snum, sdiv->top + 2) == NULL)\n goto err;\n for (i = snum->top; i < sdiv->top + 2; i++)\n snum->d[i] = 0;\n snum->top = sdiv->top + 2;\n } else {\n if (bn_wexpand(snum, snum->top + 1) == NULL)\n goto err;\n snum->d[snum->top] = 0;\n snum->top++;\n }\n }\n div_n = sdiv->top;\n num_n = snum->top;\n loop = num_n - div_n;\n wnum.neg = 0;\n wnum.d = &(snum->d[loop]);\n wnum.top = div_n;\n wnum.flags = BN_FLG_STATIC_DATA;\n wnum.dmax = snum->dmax - loop;\n d0 = sdiv->d[div_n - 1];\n d1 = (div_n == 1) ? 0 : sdiv->d[div_n - 2];\n wnump = &(snum->d[num_n - 1]);\n if (!bn_wexpand(res, (loop + 1)))\n goto err;\n res->neg = (num->neg ^ divisor->neg);\n res->top = loop - no_branch;\n resp = &(res->d[loop - 1]);\n if (!bn_wexpand(tmp, (div_n + 1)))\n goto err;\n if (!no_branch) {\n if (BN_ucmp(&wnum, sdiv) >= 0) {\n bn_clear_top2max(&wnum);\n bn_sub_words(wnum.d, wnum.d, sdiv->d, div_n);\n *resp = 1;\n } else\n res->top--;\n }\n resp++;\n if (res->top == 0)\n res->neg = 0;\n else\n resp--;\n for (i = 0; i < loop - 1; i++, wnump--) {\n BN_ULONG q, l0;\n# if defined(BN_DIV3W)\n q = bn_div_3_words(wnump, d1, d0);\n# else\n BN_ULONG n0, n1, rem = 0;\n n0 = wnump[0];\n n1 = wnump[-1];\n if (n0 == d0)\n q = BN_MASK2;\n else {\n# ifdef BN_LLONG\n BN_ULLONG t2;\n# if defined(BN_LLONG) && defined(BN_DIV2W) && !defined(bn_div_words)\n q = (BN_ULONG)(((((BN_ULLONG) n0) << BN_BITS2) | n1) / d0);\n# else\n q = bn_div_words(n0, n1, d0);\n# endif\n# ifndef REMAINDER_IS_ALREADY_CALCULATED\n rem = (n1 - q * d0) & BN_MASK2;\n# endif\n t2 = (BN_ULLONG) d1 *q;\n for (;;) {\n if (t2 <= ((((BN_ULLONG) rem) << BN_BITS2) | wnump[-2]))\n break;\n q--;\n rem += d0;\n if (rem < d0)\n break;\n t2 -= d1;\n }\n# else\n BN_ULONG t2l, t2h;\n q = bn_div_words(n0, n1, d0);\n# ifndef REMAINDER_IS_ALREADY_CALCULATED\n rem = (n1 - q * d0) & BN_MASK2;\n# endif\n# if defined(BN_UMULT_LOHI)\n BN_UMULT_LOHI(t2l, t2h, d1, q);\n# elif defined(BN_UMULT_HIGH)\n t2l = d1 * q;\n t2h = BN_UMULT_HIGH(d1, q);\n# else\n {\n BN_ULONG ql, qh;\n t2l = LBITS(d1);\n t2h = HBITS(d1);\n ql = LBITS(q);\n qh = HBITS(q);\n mul64(t2l, t2h, ql, qh);\n }\n# endif\n for (;;) {\n if ((t2h < rem) || ((t2h == rem) && (t2l <= wnump[-2])))\n break;\n q--;\n rem += d0;\n if (rem < d0)\n break;\n if (t2l < d1)\n t2h--;\n t2l -= d1;\n }\n# endif\n }\n# endif\n l0 = bn_mul_words(tmp->d, sdiv->d, div_n, q);\n tmp->d[div_n] = l0;\n wnum.d--;\n l0 = bn_sub_words(wnum.d, wnum.d, tmp->d, div_n + 1);\n q -= l0;\n for (l0 = 0 - l0, j = 0; j < div_n; j++)\n tmp->d[j] = sdiv->d[j] & l0;\n l0 = bn_add_words(wnum.d, wnum.d, tmp->d, div_n);\n (*wnump) += l0;\n resp--;\n *resp = q;\n }\n bn_correct_top(snum);\n if (rm != NULL) {\n int neg = num->neg;\n BN_rshift(rm, snum, norm_shift);\n if (!BN_is_zero(rm))\n rm->neg = neg;\n bn_check_top(rm);\n }\n if (no_branch)\n bn_correct_top(res);\n BN_CTX_end(ctx);\n return 1;\n err:\n bn_check_top(rm);\n BN_CTX_end(ctx);\n return 0;\n}', 'BIGNUM *BN_CTX_get(BN_CTX *ctx)\n{\n BIGNUM *ret;\n CTXDBG_ENTRY("BN_CTX_get", ctx);\n if (ctx->err_stack || ctx->too_many)\n return NULL;\n if ((ret = BN_POOL_get(&ctx->pool, ctx->flags)) == NULL) {\n ctx->too_many = 1;\n BNerr(BN_F_BN_CTX_GET, BN_R_TOO_MANY_TEMPORARY_VARIABLES);\n return NULL;\n }\n BN_zero(ret);\n ctx->used++;\n CTXDBG_RET(ctx, ret);\n return ret;\n}', 'int BN_set_word(BIGNUM *a, BN_ULONG w)\n{\n bn_check_top(a);\n if (bn_expand(a, (int)sizeof(BN_ULONG) * 8) == NULL)\n return 0;\n a->neg = 0;\n a->d[0] = w;\n a->top = (w ? 1 : 0);\n a->flags &= ~BN_FLG_FIXED_TOP;\n bn_check_top(a);\n return 1;\n}', '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}', 'BIGNUM *bn_expand2(BIGNUM *b, int words)\n{\n if (words > b->dmax) {\n BN_ULONG *a = bn_expand_internal(b, words);\n if (!a)\n return NULL;\n if (b->d) {\n OPENSSL_cleanse(b->d, b->dmax * sizeof(b->d[0]));\n bn_free_d(b);\n }\n b->d = a;\n b->dmax = words;\n }\n return b;\n}', 'static BN_ULONG *bn_expand_internal(const BIGNUM *b, int words)\n{\n BN_ULONG *a = NULL;\n if (words > (INT_MAX / (4 * BN_BITS2))) {\n BNerr(BN_F_BN_EXPAND_INTERNAL, BN_R_BIGNUM_TOO_LONG);\n return NULL;\n }\n if (BN_get_flags(b, BN_FLG_STATIC_DATA)) {\n BNerr(BN_F_BN_EXPAND_INTERNAL, BN_R_EXPAND_ON_STATIC_BIGNUM_DATA);\n return NULL;\n }\n if (BN_get_flags(b, BN_FLG_SECURE))\n a = OPENSSL_secure_zalloc(words * sizeof(*a));\n else\n a = OPENSSL_zalloc(words * sizeof(*a));\n if (a == NULL) {\n BNerr(BN_F_BN_EXPAND_INTERNAL, ERR_R_MALLOC_FAILURE);\n return NULL;\n }\n assert(b->top <= words);\n if (b->top > 0)\n memcpy(a, b->d, sizeof(*a) * b->top);\n return a;\n}'] |
23,104 | 1 | https://github.com/nginx/nginx/blob/4c53a38fb59496e8280991b307a5fdfbd7f71040/src/core/nginx.c/#L910 | static ngx_int_t
ngx_process_options(ngx_cycle_t *cycle)
{
u_char *p;
size_t len;
if (ngx_prefix) {
len = ngx_strlen(ngx_prefix);
p = ngx_prefix;
if (len && !ngx_path_separator(p[len - 1])) {
p = ngx_pnalloc(cycle->pool, len + 1);
if (p == NULL) {
return NGX_ERROR;
}
ngx_memcpy(p, ngx_prefix, len);
p[len++] = '/';
}
cycle->conf_prefix.len = len;
cycle->conf_prefix.data = p;
cycle->prefix.len = len;
cycle->prefix.data = p;
} else {
#ifndef NGX_PREFIX
p = ngx_pnalloc(cycle->pool, NGX_MAX_PATH);
if (p == NULL) {
return NGX_ERROR;
}
if (ngx_getcwd(p, NGX_MAX_PATH) == 0) {
ngx_log_stderr(ngx_errno, "[emerg]: " ngx_getcwd_n " failed");
return NGX_ERROR;
}
len = ngx_strlen(p);
p[len++] = '/';
cycle->conf_prefix.len = len;
cycle->conf_prefix.data = p;
cycle->prefix.len = len;
cycle->prefix.data = p;
#else
#ifdef NGX_CONF_PREFIX
ngx_str_set(&cycle->conf_prefix, NGX_CONF_PREFIX);
#else
ngx_str_set(&cycle->conf_prefix, NGX_PREFIX);
#endif
ngx_str_set(&cycle->prefix, NGX_PREFIX);
#endif
}
if (ngx_conf_file) {
cycle->conf_file.len = ngx_strlen(ngx_conf_file);
cycle->conf_file.data = ngx_conf_file;
} else {
ngx_str_set(&cycle->conf_file, NGX_CONF_PATH);
}
if (ngx_get_full_name(cycle->pool, &cycle->prefix, &cycle->conf_file)
!= NGX_OK)
{
return NGX_ERROR;
}
for (p = cycle->conf_file.data + cycle->conf_file.len - 1;
p > cycle->conf_file.data;
p--)
{
if (ngx_path_separator(*p)) {
cycle->conf_prefix.len = p - ngx_cycle->conf_file.data + 1;
cycle->conf_prefix.data = ngx_cycle->conf_file.data;
break;
}
}
if (ngx_conf_params) {
cycle->conf_param.len = ngx_strlen(ngx_conf_params);
cycle->conf_param.data = ngx_conf_params;
}
if (ngx_test_config) {
cycle->log->log_level = NGX_LOG_INFO;
}
return NGX_OK;
} | ['static ngx_int_t\nngx_process_options(ngx_cycle_t *cycle)\n{\n u_char *p;\n size_t len;\n if (ngx_prefix) {\n len = ngx_strlen(ngx_prefix);\n p = ngx_prefix;\n if (len && !ngx_path_separator(p[len - 1])) {\n p = ngx_pnalloc(cycle->pool, len + 1);\n if (p == NULL) {\n return NGX_ERROR;\n }\n ngx_memcpy(p, ngx_prefix, len);\n p[len++] = \'/\';\n }\n cycle->conf_prefix.len = len;\n cycle->conf_prefix.data = p;\n cycle->prefix.len = len;\n cycle->prefix.data = p;\n } else {\n#ifndef NGX_PREFIX\n p = ngx_pnalloc(cycle->pool, NGX_MAX_PATH);\n if (p == NULL) {\n return NGX_ERROR;\n }\n if (ngx_getcwd(p, NGX_MAX_PATH) == 0) {\n ngx_log_stderr(ngx_errno, "[emerg]: " ngx_getcwd_n " failed");\n return NGX_ERROR;\n }\n len = ngx_strlen(p);\n p[len++] = \'/\';\n cycle->conf_prefix.len = len;\n cycle->conf_prefix.data = p;\n cycle->prefix.len = len;\n cycle->prefix.data = p;\n#else\n#ifdef NGX_CONF_PREFIX\n ngx_str_set(&cycle->conf_prefix, NGX_CONF_PREFIX);\n#else\n ngx_str_set(&cycle->conf_prefix, NGX_PREFIX);\n#endif\n ngx_str_set(&cycle->prefix, NGX_PREFIX);\n#endif\n }\n if (ngx_conf_file) {\n cycle->conf_file.len = ngx_strlen(ngx_conf_file);\n cycle->conf_file.data = ngx_conf_file;\n } else {\n ngx_str_set(&cycle->conf_file, NGX_CONF_PATH);\n }\n if (ngx_get_full_name(cycle->pool, &cycle->prefix, &cycle->conf_file)\n != NGX_OK)\n {\n return NGX_ERROR;\n }\n for (p = cycle->conf_file.data + cycle->conf_file.len - 1;\n p > cycle->conf_file.data;\n p--)\n {\n if (ngx_path_separator(*p)) {\n cycle->conf_prefix.len = p - ngx_cycle->conf_file.data + 1;\n cycle->conf_prefix.data = ngx_cycle->conf_file.data;\n break;\n }\n }\n if (ngx_conf_params) {\n cycle->conf_param.len = ngx_strlen(ngx_conf_params);\n cycle->conf_param.data = ngx_conf_params;\n }\n if (ngx_test_config) {\n cycle->log->log_level = NGX_LOG_INFO;\n }\n return NGX_OK;\n}', 'ngx_int_t\nngx_get_full_name(ngx_pool_t *pool, ngx_str_t *prefix, ngx_str_t *name)\n{\n size_t len;\n u_char *p, *n;\n ngx_int_t rc;\n rc = ngx_test_full_name(name);\n if (rc == NGX_OK) {\n return rc;\n }\n len = prefix->len;\n#if (NGX_WIN32)\n if (rc == 2) {\n len = rc;\n }\n#endif\n n = ngx_pnalloc(pool, len + name->len + 1);\n if (n == NULL) {\n return NGX_ERROR;\n }\n p = ngx_cpymem(n, prefix->data, len);\n ngx_cpystrn(p, name->data, name->len + 1);\n name->len += len;\n name->data = n;\n return NGX_OK;\n}'] |
23,105 | 0 | https://github.com/nginx/nginx/blob/8e9f1df637160ec20990601976e140b8d3cffc0b/src/core/ngx_file.c/#L258 | void
ngx_create_hashed_filename(ngx_path_t *path, u_char *file, size_t len)
{
size_t i, level;
ngx_uint_t n;
i = path->name.len + 1;
file[path->name.len + path->len] = '/';
for (n = 0; n < NGX_MAX_PATH_LEVEL; n++) {
level = path->level[n];
if (level == 0) {
break;
}
len -= level;
file[i - 1] = '/';
ngx_memcpy(&file[i], &file[len], level);
i += level + 1;
}
} | ['ngx_int_t\nngx_create_temp_file(ngx_file_t *file, ngx_path_t *path, ngx_pool_t *pool,\n ngx_uint_t persistent, ngx_uint_t clean, ngx_uint_t access)\n{\n size_t levels;\n u_char *p;\n uint32_t n;\n ngx_err_t err;\n ngx_str_t name;\n ngx_uint_t prefix;\n ngx_pool_cleanup_t *cln;\n ngx_pool_cleanup_file_t *clnf;\n if (file->name.len) {\n name = file->name;\n levels = 0;\n prefix = 1;\n } else {\n name = path->name;\n levels = path->len;\n prefix = 0;\n }\n file->name.len = name.len + 1 + levels + 10;\n file->name.data = ngx_pnalloc(pool, file->name.len + 1);\n if (file->name.data == NULL) {\n return NGX_ERROR;\n }\n#if 0\n for (i = 0; i < file->name.len; i++) {\n file->name.data[i] = \'X\';\n }\n#endif\n p = ngx_cpymem(file->name.data, name.data, name.len);\n if (prefix) {\n *p = \'.\';\n }\n p += 1 + levels;\n n = (uint32_t) ngx_next_temp_number(0);\n cln = ngx_pool_cleanup_add(pool, sizeof(ngx_pool_cleanup_file_t));\n if (cln == NULL) {\n return NGX_ERROR;\n }\n for ( ;; ) {\n (void) ngx_sprintf(p, "%010uD%Z", n);\n if (!prefix) {\n ngx_create_hashed_filename(path, file->name.data, file->name.len);\n }\n ngx_log_debug1(NGX_LOG_DEBUG_CORE, file->log, 0,\n "hashed path: %s", file->name.data);\n file->fd = ngx_open_tempfile(file->name.data, persistent, access);\n ngx_log_debug1(NGX_LOG_DEBUG_CORE, file->log, 0,\n "temp fd:%d", file->fd);\n if (file->fd != NGX_INVALID_FILE) {\n cln->handler = clean ? ngx_pool_delete_file : ngx_pool_cleanup_file;\n clnf = cln->data;\n clnf->fd = file->fd;\n clnf->name = file->name.data;\n clnf->log = pool->log;\n return NGX_OK;\n }\n err = ngx_errno;\n if (err == NGX_EEXIST_FILE) {\n n = (uint32_t) ngx_next_temp_number(1);\n continue;\n }\n if ((path->level[0] == 0) || (err != NGX_ENOPATH)) {\n ngx_log_error(NGX_LOG_CRIT, file->log, err,\n ngx_open_tempfile_n " \\"%s\\" failed",\n file->name.data);\n return NGX_ERROR;\n }\n if (ngx_create_path(file, path) == NGX_ERROR) {\n return NGX_ERROR;\n }\n }\n}', "void\nngx_create_hashed_filename(ngx_path_t *path, u_char *file, size_t len)\n{\n size_t i, level;\n ngx_uint_t n;\n i = path->name.len + 1;\n file[path->name.len + path->len] = '/';\n for (n = 0; n < NGX_MAX_PATH_LEVEL; n++) {\n level = path->level[n];\n if (level == 0) {\n break;\n }\n len -= level;\n file[i - 1] = '/';\n ngx_memcpy(&file[i], &file[len], level);\n i += level + 1;\n }\n}"] |
23,106 | 0 | https://github.com/openssl/openssl/blob/67dc995eaf538ea309c6292a1a5073465201f55b/ssl/packet.c/#L48 | int WPACKET_reserve_bytes(WPACKET *pkt, size_t len, unsigned char **allocbytes)
{
if (!ossl_assert(pkt->subs != NULL && len != 0))
return 0;
if (pkt->maxsize - pkt->written < len)
return 0;
if (pkt->staticbuf == NULL && (pkt->buf->length - pkt->written < len)) {
size_t newlen;
size_t reflen;
reflen = (len > pkt->buf->length) ? len : pkt->buf->length;
if (reflen > SIZE_MAX / 2) {
newlen = SIZE_MAX;
} else {
newlen = reflen * 2;
if (newlen < DEFAULT_BUF_SIZE)
newlen = DEFAULT_BUF_SIZE;
}
if (BUF_MEM_grow(pkt->buf, newlen) == 0)
return 0;
}
if (allocbytes != NULL)
*allocbytes = WPACKET_get_curr(pkt);
return 1;
} | ['int tls_construct_server_hello(SSL *s, WPACKET *pkt)\n{\n int compm, al = SSL_AD_INTERNAL_ERROR;\n size_t sl, len;\n int version;\n version = SSL_IS_TLS13(s) ? TLS1_3_VERSION_DRAFT : s->version;\n if (!WPACKET_put_bytes_u16(pkt, version)\n || !WPACKET_memcpy(pkt, s->s3->server_random, SSL3_RANDOM_SIZE)) {\n SSLerr(SSL_F_TLS_CONSTRUCT_SERVER_HELLO, ERR_R_INTERNAL_ERROR);\n goto err;\n }\n if (s->session->not_resumable ||\n (!(s->ctx->session_cache_mode & SSL_SESS_CACHE_SERVER)\n && !s->hit))\n s->session->session_id_length = 0;\n sl = s->session->session_id_length;\n if (sl > sizeof(s->session->session_id)) {\n SSLerr(SSL_F_TLS_CONSTRUCT_SERVER_HELLO, ERR_R_INTERNAL_ERROR);\n goto err;\n }\n#ifdef OPENSSL_NO_COMP\n compm = 0;\n#else\n if (s->s3->tmp.new_compression == NULL)\n compm = 0;\n else\n compm = s->s3->tmp.new_compression->id;\n#endif\n if ((!SSL_IS_TLS13(s)\n && !WPACKET_sub_memcpy_u8(pkt, s->session->session_id, sl))\n || !s->method->put_cipher_by_char(s->s3->tmp.new_cipher, pkt, &len)\n || (!SSL_IS_TLS13(s)\n && !WPACKET_put_bytes_u8(pkt, compm))\n || !tls_construct_extensions(s, pkt,\n SSL_IS_TLS13(s)\n ? SSL_EXT_TLS1_3_SERVER_HELLO\n : SSL_EXT_TLS1_2_SERVER_HELLO,\n NULL, 0, &al)) {\n SSLerr(SSL_F_TLS_CONSTRUCT_SERVER_HELLO, ERR_R_INTERNAL_ERROR);\n goto err;\n }\n if (!(s->verify_mode & SSL_VERIFY_PEER)\n && !ssl3_digest_cached_records(s, 0)) {\n al = SSL_AD_INTERNAL_ERROR;\n goto err;\n }\n return 1;\n err:\n ssl3_send_alert(s, SSL3_AL_FATAL, al);\n return 0;\n}', 'int WPACKET_put_bytes__(WPACKET *pkt, unsigned int val, size_t size)\n{\n unsigned char *data;\n if (!ossl_assert(size <= sizeof(unsigned int))\n || !WPACKET_allocate_bytes(pkt, size, &data)\n || !put_value(data, val, size))\n return 0;\n return 1;\n}', 'int WPACKET_memcpy(WPACKET *pkt, const void *src, size_t len)\n{\n unsigned char *dest;\n if (len == 0)\n return 1;\n if (!WPACKET_allocate_bytes(pkt, len, &dest))\n return 0;\n memcpy(dest, src, len);\n return 1;\n}', 'int WPACKET_sub_memcpy__(WPACKET *pkt, const void *src, size_t len,\n size_t lenbytes)\n{\n if (!WPACKET_start_sub_packet_len__(pkt, lenbytes)\n || !WPACKET_memcpy(pkt, src, len)\n || !WPACKET_close(pkt))\n return 0;\n return 1;\n}', 'int WPACKET_start_sub_packet_len__(WPACKET *pkt, size_t lenbytes)\n{\n WPACKET_SUB *sub;\n unsigned char *lenchars;\n if (!ossl_assert(pkt->subs != NULL))\n return 0;\n sub = OPENSSL_zalloc(sizeof(*sub));\n if (sub == NULL)\n return 0;\n sub->parent = pkt->subs;\n pkt->subs = sub;\n sub->pwritten = pkt->written + lenbytes;\n sub->lenbytes = lenbytes;\n if (lenbytes == 0) {\n sub->packet_len = 0;\n return 1;\n }\n if (!WPACKET_allocate_bytes(pkt, lenbytes, &lenchars))\n return 0;\n sub->packet_len = lenchars - GETBUF(pkt);\n return 1;\n}', 'int WPACKET_allocate_bytes(WPACKET *pkt, size_t len, unsigned char **allocbytes)\n{\n if (!WPACKET_reserve_bytes(pkt, len, allocbytes))\n return 0;\n pkt->written += len;\n pkt->curr += len;\n return 1;\n}', 'int WPACKET_reserve_bytes(WPACKET *pkt, size_t len, unsigned char **allocbytes)\n{\n if (!ossl_assert(pkt->subs != NULL && len != 0))\n return 0;\n if (pkt->maxsize - pkt->written < len)\n return 0;\n if (pkt->staticbuf == NULL && (pkt->buf->length - pkt->written < len)) {\n size_t newlen;\n size_t reflen;\n reflen = (len > pkt->buf->length) ? len : pkt->buf->length;\n if (reflen > SIZE_MAX / 2) {\n newlen = SIZE_MAX;\n } else {\n newlen = reflen * 2;\n if (newlen < DEFAULT_BUF_SIZE)\n newlen = DEFAULT_BUF_SIZE;\n }\n if (BUF_MEM_grow(pkt->buf, newlen) == 0)\n return 0;\n }\n if (allocbytes != NULL)\n *allocbytes = WPACKET_get_curr(pkt);\n return 1;\n}'] |
23,107 | 0 | https://github.com/openssl/openssl/blob/8da94770f0a049497b1a52ee469cca1f4a13b1a7/crypto/bn/bn_lib.c/#L766 | int bn_cmp_words(const BN_ULONG *a, const BN_ULONG *b, int n)
{
int i;
BN_ULONG aa, bb;
aa = a[n - 1];
bb = b[n - 1];
if (aa != bb)
return ((aa > bb) ? 1 : -1);
for (i = n - 2; i >= 0; i--) {
aa = a[i];
bb = b[i];
if (aa != bb)
return ((aa > bb) ? 1 : -1);
}
return (0);
} | ['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}', '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_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}', '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}', '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}', 'int bn_cmp_words(const BN_ULONG *a, const BN_ULONG *b, int n)\n{\n int i;\n BN_ULONG aa, bb;\n aa = a[n - 1];\n bb = b[n - 1];\n if (aa != bb)\n return ((aa > bb) ? 1 : -1);\n for (i = n - 2; i >= 0; i--) {\n aa = a[i];\n bb = b[i];\n if (aa != bb)\n return ((aa > bb) ? 1 : -1);\n }\n return (0);\n}'] |
23,108 | 0 | https://github.com/libav/libav/blob/32a15a2441c4bfc83b2934f617d64d196492bdde/libavfilter/avfilter.c/#L77 | void avfilter_unref_buffer(AVFilterBufferRef *ref)
{
if(!(--ref->buf->refcount))
ref->buf->free(ref->buf);
av_free(ref->video);
av_free(ref->audio);
av_free(ref);
} | ['static int color_request_frame(AVFilterLink *link)\n{\n ColorContext *color = link->src->priv;\n AVFilterBufferRef *picref = avfilter_get_video_buffer(link, AV_PERM_WRITE, color->w, color->h);\n picref->video->pixel_aspect = (AVRational) {1, 1};\n picref->pts = av_rescale_q(color->pts++, color->time_base, AV_TIME_BASE_Q);\n picref->pos = 0;\n avfilter_start_frame(link, avfilter_ref_buffer(picref, ~0));\n draw_rectangle(picref,\n color->line, color->line_step, color->hsub, color->vsub,\n 0, 0, color->w, color->h);\n avfilter_draw_slice(link, 0, color->h, 1);\n avfilter_end_frame(link);\n avfilter_unref_buffer(picref);\n return 0;\n}', 'void avfilter_start_frame(AVFilterLink *link, AVFilterBufferRef *picref)\n{\n void (*start_frame)(AVFilterLink *, AVFilterBufferRef *);\n AVFilterPad *dst = &link_dpad(link);\n FF_DPRINTF_START(NULL, start_frame); ff_dprintf_link(NULL, link, 0); dprintf(NULL, " "); ff_dprintf_picref(NULL, picref, 1);\n if(!(start_frame = dst->start_frame))\n start_frame = avfilter_default_start_frame;\n if((dst->min_perms & picref->perms) != dst->min_perms ||\n dst->rej_perms & picref->perms) {\n link->cur_buf = avfilter_default_get_video_buffer(link, dst->min_perms, link->w, link->h);\n link->src_buf = picref;\n avfilter_copy_buffer_ref_props(link->cur_buf, link->src_buf);\n }\n else\n link->cur_buf = picref;\n start_frame(link, link->cur_buf);\n}', 'static void draw_rectangle(AVFilterBufferRef *outpic, uint8_t *line[4], int line_step[4],\n int hsub, int vsub, int x, int y, int w, int h)\n{\n int i, plane;\n uint8_t *p;\n for (plane = 0; plane < 4 && outpic->data[plane]; plane++) {\n int hsub1 = plane == 1 || plane == 2 ? hsub : 0;\n int vsub1 = plane == 1 || plane == 2 ? vsub : 0;\n p = outpic->data[plane] + (y >> vsub1) * outpic->linesize[plane];\n for (i = 0; i < (h >> vsub1); i++) {\n memcpy(p + (x >> hsub1) * line_step[plane], line[plane], (w >> hsub1) * line_step[plane]);\n p += outpic->linesize[plane];\n }\n }\n}', 'void avfilter_draw_slice(AVFilterLink *link, int y, int h, int slice_dir)\n{\n uint8_t *src[4], *dst[4];\n int i, j, vsub;\n void (*draw_slice)(AVFilterLink *, int, int, int);\n FF_DPRINTF_START(NULL, draw_slice); ff_dprintf_link(NULL, link, 0); dprintf(NULL, " y:%d h:%d dir:%d\\n", y, h, slice_dir);\n if(link->src_buf) {\n vsub = av_pix_fmt_descriptors[link->format].log2_chroma_h;\n for(i = 0; i < 4; i ++) {\n if(link->src_buf->data[i]) {\n src[i] = link->src_buf-> data[i] +\n (y >> (i==0 ? 0 : vsub)) * link->src_buf-> linesize[i];\n dst[i] = link->cur_buf->data[i] +\n (y >> (i==0 ? 0 : vsub)) * link->cur_buf->linesize[i];\n } else\n src[i] = dst[i] = NULL;\n }\n for(i = 0; i < 4; i ++) {\n int planew =\n av_get_image_linesize(link->format, link->cur_buf->video->w, i);\n if(!src[i]) continue;\n for(j = 0; j < h >> (i==0 ? 0 : vsub); j ++) {\n memcpy(dst[i], src[i], planew);\n src[i] += link->src_buf ->linesize[i];\n dst[i] += link->cur_buf->linesize[i];\n }\n }\n }\n if(!(draw_slice = link_dpad(link).draw_slice))\n draw_slice = avfilter_default_draw_slice;\n draw_slice(link, y, h, slice_dir);\n}', 'void avfilter_unref_buffer(AVFilterBufferRef *ref)\n{\n if(!(--ref->buf->refcount))\n ref->buf->free(ref->buf);\n av_free(ref->video);\n av_free(ref->audio);\n av_free(ref);\n}'] |
23,109 | 0 | https://github.com/openssl/openssl/blob/9639515871c73722de3fff04d3c50d54aa6b1477/crypto/bn/bn_mul.c/#L648 | int BN_mul(BIGNUM *r, BIGNUM *a, BIGNUM *b, BN_CTX *ctx)
{
int top,al,bl;
BIGNUM *rr;
#ifdef BN_RECURSION
BIGNUM *t;
int i,j,k;
#endif
#ifdef BN_COUNT
printf("BN_mul %d * %d\n",a->top,b->top);
#endif
bn_check_top(a);
bn_check_top(b);
bn_check_top(r);
al=a->top;
bl=b->top;
r->neg=a->neg^b->neg;
if ((al == 0) || (bl == 0))
{
BN_zero(r);
return(1);
}
top=al+bl;
if ((r == a) || (r == b))
rr= &(ctx->bn[ctx->tos+1]);
else
rr=r;
#if defined(BN_MUL_COMBA) || defined(BN_RECURSION)
if (al == bl)
{
# ifdef BN_MUL_COMBA
if (al == 8)
{
if (bn_wexpand(rr,16) == NULL) return(0);
rr->top=16;
bn_mul_comba8(rr->d,a->d,b->d);
goto end;
}
else
# endif
#ifdef BN_RECURSION
if (al < BN_MULL_SIZE_NORMAL)
#endif
{
if (bn_wexpand(rr,top) == NULL) return(0);
rr->top=top;
bn_mul_normal(rr->d,a->d,al,b->d,bl);
goto end;
}
# ifdef BN_RECURSION
goto symetric;
# endif
}
#endif
#ifdef BN_RECURSION
else if ((al < BN_MULL_SIZE_NORMAL) || (bl < BN_MULL_SIZE_NORMAL))
{
if (bn_wexpand(rr,top) == NULL) return(0);
rr->top=top;
bn_mul_normal(rr->d,a->d,al,b->d,bl);
goto end;
}
else
{
i=(al-bl);
if ((i == 1) && !BN_get_flags(b,BN_FLG_STATIC_DATA))
{
bn_wexpand(b,al);
b->d[bl]=0;
bl++;
goto symetric;
}
else if ((i == -1) && !BN_get_flags(a,BN_FLG_STATIC_DATA))
{
bn_wexpand(a,bl);
a->d[al]=0;
al++;
goto symetric;
}
}
#endif
if (bn_wexpand(rr,top) == NULL) return(0);
rr->top=top;
bn_mul_normal(rr->d,a->d,al,b->d,bl);
#ifdef BN_RECURSION
if (0)
{
symetric:
j=BN_num_bits_word((BN_ULONG)al);
j=1<<(j-1);
k=j+j;
t= &(ctx->bn[ctx->tos]);
if (al == j)
{
bn_wexpand(t,k*2);
bn_wexpand(rr,k*2);
bn_mul_recursive(rr->d,a->d,b->d,al,t->d);
}
else
{
bn_wexpand(a,k);
bn_wexpand(b,k);
bn_wexpand(t,k*4);
bn_wexpand(rr,k*4);
for (i=a->top; i<k; i++)
a->d[i]=0;
for (i=b->top; i<k; i++)
b->d[i]=0;
bn_mul_part_recursive(rr->d,a->d,b->d,al-j,j,t->d);
}
rr->top=top;
}
#endif
#if defined(BN_MUL_COMBA) || defined(BN_RECURSION)
end:
#endif
bn_fix_top(rr);
if (r != rr) BN_copy(r,rr);
return(1);
} | ['static int RSA_eay_private_encrypt(int flen, unsigned char *from,\n\t unsigned char *to, RSA *rsa, int padding)\n\t{\n\tBIGNUM f,ret;\n\tint i,j,k,num=0,r= -1;\n\tunsigned char *buf=NULL;\n\tBN_CTX *ctx=NULL;\n\tBN_init(&f);\n\tBN_init(&ret);\n\tif ((ctx=BN_CTX_new()) == NULL) goto err;\n\tnum=BN_num_bytes(rsa->n);\n\tif ((buf=(unsigned char *)Malloc(num)) == NULL)\n\t\t{\n\t\tRSAerr(RSA_F_RSA_EAY_PRIVATE_ENCRYPT,ERR_R_MALLOC_FAILURE);\n\t\tgoto err;\n\t\t}\n\tswitch (padding)\n\t\t{\n\tcase RSA_PKCS1_PADDING:\n\t\ti=RSA_padding_add_PKCS1_type_1(buf,num,from,flen);\n\t\tbreak;\n\tcase RSA_NO_PADDING:\n\t\ti=RSA_padding_add_none(buf,num,from,flen);\n\t\tbreak;\n\tcase RSA_SSLV23_PADDING:\n\tdefault:\n\t\tRSAerr(RSA_F_RSA_EAY_PRIVATE_ENCRYPT,RSA_R_UNKNOWN_PADDING_TYPE);\n\t\tgoto err;\n\t\t}\n\tif (i <= 0) goto err;\n\tif (BN_bin2bn(buf,num,&f) == NULL) goto err;\n\tif ((rsa->flags & RSA_FLAG_BLINDING) && (rsa->blinding == NULL))\n\t\tRSA_blinding_on(rsa,ctx);\n\tif (rsa->flags & RSA_FLAG_BLINDING)\n\t\tif (!BN_BLINDING_convert(&f,rsa->blinding,ctx)) goto err;\n\tif ( (rsa->flags & RSA_FLAG_EXT_PKEY) ||\n\t\t((rsa->p != NULL) &&\n\t\t(rsa->q != NULL) &&\n\t\t(rsa->dmp1 != NULL) &&\n\t\t(rsa->dmq1 != NULL) &&\n\t\t(rsa->iqmp != NULL)) )\n\t\t{ if (!rsa->meth->rsa_mod_exp(&ret,&f,rsa)) goto err; }\n\telse\n\t\t{\n\t\tif (!rsa->meth->bn_mod_exp(&ret,&f,rsa->d,rsa->n,ctx,NULL)) goto err;\n\t\t}\n\tif (rsa->flags & RSA_FLAG_BLINDING)\n\t\tif (!BN_BLINDING_invert(&ret,rsa->blinding,ctx)) goto err;\n\tj=BN_num_bytes(&ret);\n\ti=BN_bn2bin(&ret,&(to[num-j]));\n\tfor (k=0; k<(num-i); k++)\n\t\tto[k]=0;\n\tr=num;\nerr:\n\tif (ctx != NULL) BN_CTX_free(ctx);\n\tBN_clear_free(&ret);\n\tBN_clear_free(&f);\n\tif (buf != NULL)\n\t\t{\n\t\tmemset(buf,0,num);\n\t\tFree(buf);\n\t\t}\n\treturn(r);\n\t}', 'BIGNUM *BN_bin2bn(const unsigned char *s, int len, BIGNUM *ret)\n\t{\n\tunsigned int i,m;\n\tunsigned int n;\n\tBN_ULONG l;\n\tif (ret == NULL) ret=BN_new();\n\tif (ret == NULL) return(NULL);\n\tl=0;\n\tn=len;\n\tif (n == 0)\n\t\t{\n\t\tret->top=0;\n\t\treturn(ret);\n\t\t}\n\tif (bn_expand(ret,(int)(n+2)*8) == NULL)\n\t\treturn(NULL);\n\ti=((n-1)/BN_BYTES)+1;\n\tm=((n-1)%(BN_BYTES));\n\tret->top=i;\n\twhile (n-- > 0)\n\t\t{\n\t\tl=(l<<8L)| *(s++);\n\t\tif (m-- == 0)\n\t\t\t{\n\t\t\tret->d[--i]=l;\n\t\t\tl=0;\n\t\t\tm=BN_BYTES-1;\n\t\t\t}\n\t\t}\n\tbn_fix_top(ret);\n\treturn(ret);\n\t}', 'int BN_BLINDING_convert(BIGNUM *n, BN_BLINDING *b, BN_CTX *ctx)\n\t{\n\tbn_check_top(n);\n\tif ((b->A == NULL) || (b->Ai == NULL))\n\t\t{\n\t\tBNerr(BN_F_BN_BLINDING_CONVERT,BN_R_NOT_INITIALIZED);\n\t\treturn(0);\n\t\t}\n\treturn(BN_mod_mul(n,n,b->A,b->mod,ctx));\n\t}', 'int BN_mod_mul(BIGNUM *ret, BIGNUM *a, BIGNUM *b, const 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\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\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}'] |
23,110 | 0 | https://github.com/openssl/openssl/blob/0685b15a68db1cd24678432f38b88f217495cbb9/crypto/mem.c/#L151 | void *CRYPTO_clear_realloc(void *str, size_t old_len, size_t num,
const char *file, int line)
{
void *ret = NULL;
if (str == NULL)
return CRYPTO_malloc(num, file, line);
if (num == 0) {
CRYPTO_clear_free(str, old_len, file, line);
return NULL;
}
if (num < old_len) {
OPENSSL_cleanse((char*)str + num, old_len - num);
return str;
}
ret = CRYPTO_malloc(num, file, line);
if (ret != NULL) {
memcpy(ret, str, old_len);
CRYPTO_clear_free(str, old_len, file, line);
}
return ret;
} | ["static int str_copy(CONF *conf, char *section, char **pto, char *from)\n{\n int q, r, rr = 0, to = 0, len = 0;\n char *s, *e, *rp, *p, *rrp, *np, *cp, v;\n BUF_MEM *buf;\n if ((buf = BUF_MEM_new()) == NULL)\n return (0);\n len = strlen(from) + 1;\n if (!BUF_MEM_grow(buf, len))\n goto err;\n for (;;) {\n if (IS_QUOTE(conf, *from)) {\n q = *from;\n from++;\n while (!IS_EOF(conf, *from) && (*from != q)) {\n if (IS_ESC(conf, *from)) {\n from++;\n if (IS_EOF(conf, *from))\n break;\n }\n buf->data[to++] = *(from++);\n }\n if (*from == q)\n from++;\n } else if (IS_DQUOTE(conf, *from)) {\n q = *from;\n from++;\n while (!IS_EOF(conf, *from)) {\n if (*from == q) {\n if (*(from + 1) == q) {\n from++;\n } else {\n break;\n }\n }\n buf->data[to++] = *(from++);\n }\n if (*from == q)\n from++;\n } else if (IS_ESC(conf, *from)) {\n from++;\n v = *(from++);\n if (IS_EOF(conf, v))\n break;\n else if (v == 'r')\n v = '\\r';\n else if (v == 'n')\n v = '\\n';\n else if (v == 'b')\n v = '\\b';\n else if (v == 't')\n v = '\\t';\n buf->data[to++] = v;\n } else if (IS_EOF(conf, *from))\n break;\n else if (*from == '$') {\n rrp = NULL;\n s = &(from[1]);\n if (*s == '{')\n q = '}';\n else if (*s == '(')\n q = ')';\n else\n q = 0;\n if (q)\n s++;\n cp = section;\n e = np = s;\n while (IS_ALPHA_NUMERIC(conf, *e))\n e++;\n if ((e[0] == ':') && (e[1] == ':')) {\n cp = np;\n rrp = e;\n rr = *e;\n *rrp = '\\0';\n e += 2;\n np = e;\n while (IS_ALPHA_NUMERIC(conf, *e))\n e++;\n }\n r = *e;\n *e = '\\0';\n rp = e;\n if (q) {\n if (r != q) {\n CONFerr(CONF_F_STR_COPY, CONF_R_NO_CLOSE_BRACE);\n goto err;\n }\n e++;\n }\n p = _CONF_get_string(conf, cp, np);\n if (rrp != NULL)\n *rrp = rr;\n *rp = r;\n if (p == NULL) {\n CONFerr(CONF_F_STR_COPY, CONF_R_VARIABLE_HAS_NO_VALUE);\n goto err;\n }\n if (!BUF_MEM_grow_clean(buf,\n (strlen(p) + buf->length - (e - from)))) {\n CONFerr(CONF_F_STR_COPY, ERR_R_MALLOC_FAILURE);\n goto err;\n }\n while (*p)\n buf->data[to++] = *(p++);\n len -= e - from;\n from = e;\n *rp = r;\n } else\n buf->data[to++] = *(from++);\n }\n buf->data[to] = '\\0';\n OPENSSL_free(*pto);\n *pto = buf->data;\n OPENSSL_free(buf);\n return (1);\n err:\n BUF_MEM_free(buf);\n return (0);\n}", 'size_t BUF_MEM_grow(BUF_MEM *str, size_t len)\n{\n char *ret;\n size_t n;\n if (str->length >= len) {\n str->length = len;\n return (len);\n }\n if (str->max >= len) {\n if (str->data != NULL)\n memset(&str->data[str->length], 0, len - str->length);\n str->length = len;\n return (len);\n }\n if (len > LIMIT_BEFORE_EXPANSION) {\n BUFerr(BUF_F_BUF_MEM_GROW, ERR_R_MALLOC_FAILURE);\n return 0;\n }\n n = (len + 3) / 3 * 4;\n if ((str->flags & BUF_MEM_FLAG_SECURE))\n ret = sec_alloc_realloc(str, n);\n else\n ret = OPENSSL_realloc(str->data, n);\n if (ret == NULL) {\n BUFerr(BUF_F_BUF_MEM_GROW, ERR_R_MALLOC_FAILURE);\n len = 0;\n } else {\n str->data = ret;\n str->max = n;\n memset(&str->data[str->length], 0, len - str->length);\n str->length = len;\n }\n return (len);\n}', 'size_t BUF_MEM_grow_clean(BUF_MEM *str, size_t len)\n{\n char *ret;\n size_t n;\n if (str->length >= len) {\n if (str->data != NULL)\n memset(&str->data[len], 0, str->length - len);\n str->length = len;\n return (len);\n }\n if (str->max >= len) {\n memset(&str->data[str->length], 0, len - str->length);\n str->length = len;\n return (len);\n }\n if (len > LIMIT_BEFORE_EXPANSION) {\n BUFerr(BUF_F_BUF_MEM_GROW_CLEAN, ERR_R_MALLOC_FAILURE);\n return 0;\n }\n n = (len + 3) / 3 * 4;\n if ((str->flags & BUF_MEM_FLAG_SECURE))\n ret = sec_alloc_realloc(str, n);\n else\n ret = OPENSSL_clear_realloc(str->data, str->max, n);\n if (ret == NULL) {\n BUFerr(BUF_F_BUF_MEM_GROW_CLEAN, ERR_R_MALLOC_FAILURE);\n len = 0;\n } else {\n str->data = ret;\n str->max = n;\n memset(&str->data[str->length], 0, len - str->length);\n str->length = len;\n }\n return (len);\n}', 'void *CRYPTO_clear_realloc(void *str, size_t old_len, size_t num,\n const char *file, int line)\n{\n void *ret = NULL;\n if (str == NULL)\n return CRYPTO_malloc(num, file, line);\n if (num == 0) {\n CRYPTO_clear_free(str, old_len, file, line);\n return NULL;\n }\n if (num < old_len) {\n OPENSSL_cleanse((char*)str + num, old_len - num);\n return str;\n }\n ret = CRYPTO_malloc(num, file, line);\n if (ret != NULL) {\n memcpy(ret, str, old_len);\n CRYPTO_clear_free(str, old_len, file, line);\n }\n return ret;\n}'] |
23,111 | 0 | https://github.com/openssl/openssl/blob/d43c4497ce1611373c3a3e5b433dfde4907d1a69/crypto/x509/x509_vfy.c/#L208 | int X509_verify_cert(X509_STORE_CTX *ctx)
{
X509 *x,*xtmp,*chain_ss=NULL;
X509_NAME *xn;
int bad_chain = 0;
X509_VERIFY_PARAM *param = ctx->param;
int depth,i,ok=0;
int num;
int (*cb)(int xok,X509_STORE_CTX *xctx);
STACK_OF(X509) *sktmp=NULL;
if (ctx->cert == NULL)
{
X509err(X509_F_X509_VERIFY_CERT,X509_R_NO_CERT_SET_FOR_US_TO_VERIFY);
return -1;
}
cb=ctx->verify_cb;
if (ctx->chain == NULL)
{
if ( ((ctx->chain=sk_X509_new_null()) == NULL) ||
(!sk_X509_push(ctx->chain,ctx->cert)))
{
X509err(X509_F_X509_VERIFY_CERT,ERR_R_MALLOC_FAILURE);
goto end;
}
CRYPTO_add(&ctx->cert->references,1,CRYPTO_LOCK_X509);
ctx->last_untrusted=1;
}
if (ctx->untrusted != NULL
&& (sktmp=sk_X509_dup(ctx->untrusted)) == NULL)
{
X509err(X509_F_X509_VERIFY_CERT,ERR_R_MALLOC_FAILURE);
goto end;
}
num=sk_X509_num(ctx->chain);
x=sk_X509_value(ctx->chain,num-1);
depth=param->depth;
for (;;)
{
if (depth < num) break;
xn=X509_get_issuer_name(x);
if (ctx->check_issued(ctx, x,x)) break;
if (ctx->untrusted != NULL)
{
xtmp=find_issuer(ctx, sktmp,x);
if (xtmp != NULL)
{
if (!sk_X509_push(ctx->chain,xtmp))
{
X509err(X509_F_X509_VERIFY_CERT,ERR_R_MALLOC_FAILURE);
goto end;
}
CRYPTO_add(&xtmp->references,1,CRYPTO_LOCK_X509);
(void)sk_X509_delete_ptr(sktmp,xtmp);
ctx->last_untrusted++;
x=xtmp;
num++;
continue;
}
}
break;
}
i=sk_X509_num(ctx->chain);
x=sk_X509_value(ctx->chain,i-1);
xn = X509_get_subject_name(x);
if (ctx->check_issued(ctx, x, x))
{
if (sk_X509_num(ctx->chain) == 1)
{
ok = ctx->get_issuer(&xtmp, ctx, x);
if ((ok <= 0) || X509_cmp(x, xtmp))
{
ctx->error=X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT;
ctx->current_cert=x;
ctx->error_depth=i-1;
if (ok == 1) X509_free(xtmp);
bad_chain = 1;
ok=cb(0,ctx);
if (!ok) goto end;
}
else
{
X509_free(x);
x = xtmp;
(void)sk_X509_set(ctx->chain, i - 1, x);
ctx->last_untrusted=0;
}
}
else
{
chain_ss=sk_X509_pop(ctx->chain);
ctx->last_untrusted--;
num--;
x=sk_X509_value(ctx->chain,num-1);
}
}
for (;;)
{
if (depth < num) break;
xn=X509_get_issuer_name(x);
if (ctx->check_issued(ctx,x,x)) break;
ok = ctx->get_issuer(&xtmp, ctx, x);
if (ok < 0) return ok;
if (ok == 0) break;
x = xtmp;
if (!sk_X509_push(ctx->chain,x))
{
X509_free(xtmp);
X509err(X509_F_X509_VERIFY_CERT,ERR_R_MALLOC_FAILURE);
return 0;
}
num++;
}
xn=X509_get_issuer_name(x);
if (!ctx->check_issued(ctx,x,x))
{
if ((chain_ss == NULL) || !ctx->check_issued(ctx, x, chain_ss))
{
if (ctx->last_untrusted >= num)
ctx->error=X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT_LOCALLY;
else
ctx->error=X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT;
ctx->current_cert=x;
}
else
{
sk_X509_push(ctx->chain,chain_ss);
num++;
ctx->last_untrusted=num;
ctx->current_cert=chain_ss;
ctx->error=X509_V_ERR_SELF_SIGNED_CERT_IN_CHAIN;
chain_ss=NULL;
}
ctx->error_depth=num-1;
bad_chain = 1;
ok=cb(0,ctx);
if (!ok) goto end;
}
ok = check_chain_extensions(ctx);
if (!ok) goto end;
ok = check_name_constraints(ctx);
if (!ok) goto end;
if (param->trust > 0) ok = check_trust(ctx);
if (!ok) goto end;
X509_get_pubkey_parameters(NULL,ctx->chain);
ok = ctx->check_revocation(ctx);
if(!ok) goto end;
if (ctx->verify != NULL)
ok=ctx->verify(ctx);
else
ok=internal_verify(ctx);
if(!ok) goto end;
#ifndef OPENSSL_NO_RFC3779
ok = v3_asid_validate_path(ctx);
if (!ok) goto end;
ok = v3_addr_validate_path(ctx);
if (!ok) goto end;
#endif
if (!bad_chain && (ctx->param->flags & X509_V_FLAG_POLICY_CHECK))
ok = ctx->check_policy(ctx);
if(!ok) goto end;
if (0)
{
end:
X509_get_pubkey_parameters(NULL,ctx->chain);
}
if (sktmp != NULL) sk_X509_free(sktmp);
if (chain_ss != NULL) X509_free(chain_ss);
return ok;
} | ['int X509_verify_cert(X509_STORE_CTX *ctx)\n\t{\n\tX509 *x,*xtmp,*chain_ss=NULL;\n\tX509_NAME *xn;\n\tint bad_chain = 0;\n\tX509_VERIFY_PARAM *param = ctx->param;\n\tint depth,i,ok=0;\n\tint num;\n\tint (*cb)(int xok,X509_STORE_CTX *xctx);\n\tSTACK_OF(X509) *sktmp=NULL;\n\tif (ctx->cert == NULL)\n\t\t{\n\t\tX509err(X509_F_X509_VERIFY_CERT,X509_R_NO_CERT_SET_FOR_US_TO_VERIFY);\n\t\treturn -1;\n\t\t}\n\tcb=ctx->verify_cb;\n\tif (ctx->chain == NULL)\n\t\t{\n\t\tif (\t((ctx->chain=sk_X509_new_null()) == NULL) ||\n\t\t\t(!sk_X509_push(ctx->chain,ctx->cert)))\n\t\t\t{\n\t\t\tX509err(X509_F_X509_VERIFY_CERT,ERR_R_MALLOC_FAILURE);\n\t\t\tgoto end;\n\t\t\t}\n\t\tCRYPTO_add(&ctx->cert->references,1,CRYPTO_LOCK_X509);\n\t\tctx->last_untrusted=1;\n\t\t}\n\tif (ctx->untrusted != NULL\n\t && (sktmp=sk_X509_dup(ctx->untrusted)) == NULL)\n\t\t{\n\t\tX509err(X509_F_X509_VERIFY_CERT,ERR_R_MALLOC_FAILURE);\n\t\tgoto end;\n\t\t}\n\tnum=sk_X509_num(ctx->chain);\n\tx=sk_X509_value(ctx->chain,num-1);\n\tdepth=param->depth;\n\tfor (;;)\n\t\t{\n\t\tif (depth < num) break;\n\t\txn=X509_get_issuer_name(x);\n\t\tif (ctx->check_issued(ctx, x,x)) break;\n\t\tif (ctx->untrusted != NULL)\n\t\t\t{\n\t\t\txtmp=find_issuer(ctx, sktmp,x);\n\t\t\tif (xtmp != NULL)\n\t\t\t\t{\n\t\t\t\tif (!sk_X509_push(ctx->chain,xtmp))\n\t\t\t\t\t{\n\t\t\t\t\tX509err(X509_F_X509_VERIFY_CERT,ERR_R_MALLOC_FAILURE);\n\t\t\t\t\tgoto end;\n\t\t\t\t\t}\n\t\t\t\tCRYPTO_add(&xtmp->references,1,CRYPTO_LOCK_X509);\n\t\t\t\t(void)sk_X509_delete_ptr(sktmp,xtmp);\n\t\t\t\tctx->last_untrusted++;\n\t\t\t\tx=xtmp;\n\t\t\t\tnum++;\n\t\t\t\tcontinue;\n\t\t\t\t}\n\t\t\t}\n\t\tbreak;\n\t\t}\n\ti=sk_X509_num(ctx->chain);\n\tx=sk_X509_value(ctx->chain,i-1);\n\txn = X509_get_subject_name(x);\n\tif (ctx->check_issued(ctx, x, x))\n\t\t{\n\t\tif (sk_X509_num(ctx->chain) == 1)\n\t\t\t{\n\t\t\tok = ctx->get_issuer(&xtmp, ctx, x);\n\t\t\tif ((ok <= 0) || X509_cmp(x, xtmp))\n\t\t\t\t{\n\t\t\t\tctx->error=X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT;\n\t\t\t\tctx->current_cert=x;\n\t\t\t\tctx->error_depth=i-1;\n\t\t\t\tif (ok == 1) X509_free(xtmp);\n\t\t\t\tbad_chain = 1;\n\t\t\t\tok=cb(0,ctx);\n\t\t\t\tif (!ok) goto end;\n\t\t\t\t}\n\t\t\telse\n\t\t\t\t{\n\t\t\t\tX509_free(x);\n\t\t\t\tx = xtmp;\n\t\t\t\t(void)sk_X509_set(ctx->chain, i - 1, x);\n\t\t\t\tctx->last_untrusted=0;\n\t\t\t\t}\n\t\t\t}\n\t\telse\n\t\t\t{\n\t\t\tchain_ss=sk_X509_pop(ctx->chain);\n\t\t\tctx->last_untrusted--;\n\t\t\tnum--;\n\t\t\tx=sk_X509_value(ctx->chain,num-1);\n\t\t\t}\n\t\t}\n\tfor (;;)\n\t\t{\n\t\tif (depth < num) break;\n\t\txn=X509_get_issuer_name(x);\n\t\tif (ctx->check_issued(ctx,x,x)) break;\n\t\tok = ctx->get_issuer(&xtmp, ctx, x);\n\t\tif (ok < 0) return ok;\n\t\tif (ok == 0) break;\n\t\tx = xtmp;\n\t\tif (!sk_X509_push(ctx->chain,x))\n\t\t\t{\n\t\t\tX509_free(xtmp);\n\t\t\tX509err(X509_F_X509_VERIFY_CERT,ERR_R_MALLOC_FAILURE);\n\t\t\treturn 0;\n\t\t\t}\n\t\tnum++;\n\t\t}\n\txn=X509_get_issuer_name(x);\n\tif (!ctx->check_issued(ctx,x,x))\n\t\t{\n\t\tif ((chain_ss == NULL) || !ctx->check_issued(ctx, x, chain_ss))\n\t\t\t{\n\t\t\tif (ctx->last_untrusted >= num)\n\t\t\t\tctx->error=X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT_LOCALLY;\n\t\t\telse\n\t\t\t\tctx->error=X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT;\n\t\t\tctx->current_cert=x;\n\t\t\t}\n\t\telse\n\t\t\t{\n\t\t\tsk_X509_push(ctx->chain,chain_ss);\n\t\t\tnum++;\n\t\t\tctx->last_untrusted=num;\n\t\t\tctx->current_cert=chain_ss;\n\t\t\tctx->error=X509_V_ERR_SELF_SIGNED_CERT_IN_CHAIN;\n\t\t\tchain_ss=NULL;\n\t\t\t}\n\t\tctx->error_depth=num-1;\n\t\tbad_chain = 1;\n\t\tok=cb(0,ctx);\n\t\tif (!ok) goto end;\n\t\t}\n\tok = check_chain_extensions(ctx);\n\tif (!ok) goto end;\n\tok = check_name_constraints(ctx);\n\tif (!ok) goto end;\n\tif (param->trust > 0) ok = check_trust(ctx);\n\tif (!ok) goto end;\n\tX509_get_pubkey_parameters(NULL,ctx->chain);\n\tok = ctx->check_revocation(ctx);\n\tif(!ok) goto end;\n\tif (ctx->verify != NULL)\n\t\tok=ctx->verify(ctx);\n\telse\n\t\tok=internal_verify(ctx);\n\tif(!ok) goto end;\n#ifndef OPENSSL_NO_RFC3779\n\tok = v3_asid_validate_path(ctx);\n\tif (!ok) goto end;\n\tok = v3_addr_validate_path(ctx);\n\tif (!ok) goto end;\n#endif\n\tif (!bad_chain && (ctx->param->flags & X509_V_FLAG_POLICY_CHECK))\n\t\tok = ctx->check_policy(ctx);\n\tif(!ok) goto end;\n\tif (0)\n\t\t{\nend:\n\t\tX509_get_pubkey_parameters(NULL,ctx->chain);\n\t\t}\n\tif (sktmp != NULL) sk_X509_free(sktmp);\n\tif (chain_ss != NULL) X509_free(chain_ss);\n\treturn ok;\n\t}', 'int sk_num(const _STACK *st)\n{\n\tif(st == NULL) return -1;\n\treturn st->num;\n}', 'void *sk_value(const _STACK *st, int i)\n{\n\tif(!st || (i < 0) || (i >= st->num)) return NULL;\n\treturn st->data[i];\n}', 'X509_NAME *X509_get_issuer_name(X509 *a)\n\t{\n\treturn(a->cert_info->issuer);\n\t}'] |
23,112 | 0 | https://github.com/openssl/openssl/blob/8da94770f0a049497b1a52ee469cca1f4a13b1a7/ssl/s3_lib.c/#L3362 | int ssl3_new(SSL *s)
{
SSL3_STATE *s3;
if ((s3 = OPENSSL_zalloc(sizeof(*s3))) == NULL)
goto err;
s->s3 = s3;
#ifndef OPENSSL_NO_SRP
if (!SSL_SRP_CTX_init(s))
goto err;
#endif
s->method->ssl_clear(s);
return (1);
err:
return (0);
} | ['int ssl3_new(SSL *s)\n{\n SSL3_STATE *s3;\n if ((s3 = OPENSSL_zalloc(sizeof(*s3))) == NULL)\n goto err;\n s->s3 = s3;\n#ifndef OPENSSL_NO_SRP\n if (!SSL_SRP_CTX_init(s))\n goto err;\n#endif\n s->method->ssl_clear(s);\n return (1);\n err:\n return (0);\n}', 'void *CRYPTO_zalloc(size_t num, const char *file, int line)\n{\n void *ret = CRYPTO_malloc(num, file, line);\n if (ret != NULL)\n memset(ret, 0, num);\n return ret;\n}', 'void *CRYPTO_malloc(size_t num, const char *file, int line)\n{\n void *ret = NULL;\n if (num <= 0)\n return NULL;\n allow_customize = 0;\n#ifdef 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}'] |
23,113 | 0 | https://github.com/openssl/openssl/blob/4ace4ccda2934d2628c3d63d41e79abe041621a7/ssl/tls13_enc.c/#L774 | 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, 0)
|| !tls13_hkdf_expand(s, md, exportsecret, exporterlabel,
sizeof(exporterlabel) - 1, hash, hashsize,
out, olen, 0))
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, 0)\n || !tls13_hkdf_expand(s, md, exportsecret, exporterlabel,\n sizeof(exporterlabel) - 1, hash, hashsize,\n out, olen, 0))\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 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 ossl_statem_export_allowed(SSL *s)\n{\n return 1;\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}'] |
23,114 | 0 | https://github.com/openssl/openssl/blob/e02c519cd32a55e6ad39a0cfbeeda775f9115f28/crypto/bn/bn_sqr.c/#L124 | 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);
} | ['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}', 'BIGNUM *BN_bin2bn(const unsigned char *s, int len, BIGNUM *ret)\n{\n unsigned int i, m;\n unsigned int n;\n BN_ULONG l;\n BIGNUM *bn = NULL;\n if (ret == NULL)\n ret = bn = BN_new();\n if (ret == NULL)\n return NULL;\n bn_check_top(ret);\n for ( ; len > 0 && *s == 0; s++, len--)\n continue;\n n = len;\n if (n == 0) {\n ret->top = 0;\n return ret;\n }\n i = ((n - 1) / BN_BYTES) + 1;\n m = ((n - 1) % (BN_BYTES));\n if (bn_wexpand(ret, (int)i) == NULL) {\n BN_free(bn);\n return NULL;\n }\n ret->top = i;\n ret->neg = 0;\n l = 0;\n while (n--) {\n l = (l << 8L) | *(s++);\n if (m-- == 0) {\n ret->d[--i] = l;\n l = 0;\n m = BN_BYTES - 1;\n }\n }\n bn_correct_top(ret);\n return ret;\n}', 'int bn_mul_mont_fixed_top(BIGNUM *r, const BIGNUM *a, const BIGNUM *b,\n BN_MONT_CTX *mont, BN_CTX *ctx)\n{\n BIGNUM *tmp;\n int ret = 0;\n int num = mont->N.top;\n#if defined(OPENSSL_BN_ASM_MONT) && defined(MONT_WORD)\n if (num > 1 && a->top == num && b->top == num) {\n if (bn_wexpand(r, num) == NULL)\n return 0;\n if (bn_mul_mont(r->d, a->d, b->d, mont->N.d, mont->n0, num)) {\n r->neg = a->neg ^ b->neg;\n r->top = num;\n r->flags |= BN_FLG_FIXED_TOP;\n return 1;\n }\n }\n#endif\n if ((a->top + b->top) > 2 * num)\n return 0;\n BN_CTX_start(ctx);\n tmp = BN_CTX_get(ctx);\n if (tmp == NULL)\n goto err;\n bn_check_top(tmp);\n if (a == b) {\n if (!bn_sqr_fixed_top(tmp, a, ctx))\n goto err;\n } else {\n if (!bn_mul_fixed_top(tmp, a, b, ctx))\n goto err;\n }\n#ifdef MONT_WORD\n if (!bn_from_montgomery_word(r, tmp, mont))\n goto err;\n#else\n if (!BN_from_montgomery(r, tmp, mont, ctx))\n goto err;\n#endif\n ret = 1;\n err:\n BN_CTX_end(ctx);\n return ret;\n}', 'int bn_sqr_fixed_top(BIGNUM *r, const BIGNUM *a, BN_CTX *ctx)\n{\n int max, al;\n int ret = 0;\n BIGNUM *tmp, *rr;\n bn_check_top(a);\n al = a->top;\n if (al <= 0) {\n r->top = 0;\n r->neg = 0;\n return 1;\n }\n BN_CTX_start(ctx);\n rr = (a != r) ? r : BN_CTX_get(ctx);\n tmp = BN_CTX_get(ctx);\n if (rr == NULL || tmp == NULL)\n goto err;\n max = 2 * al;\n if (bn_wexpand(rr, max) == NULL)\n goto err;\n if (al == 4) {\n#ifndef BN_SQR_COMBA\n BN_ULONG t[8];\n bn_sqr_normal(rr->d, a->d, 4, t);\n#else\n bn_sqr_comba4(rr->d, a->d);\n#endif\n } else if (al == 8) {\n#ifndef BN_SQR_COMBA\n BN_ULONG t[16];\n bn_sqr_normal(rr->d, a->d, 8, t);\n#else\n bn_sqr_comba8(rr->d, a->d);\n#endif\n } else {\n#if defined(BN_RECURSION)\n if (al < BN_SQR_RECURSIVE_SIZE_NORMAL) {\n BN_ULONG t[BN_SQR_RECURSIVE_SIZE_NORMAL * 2];\n bn_sqr_normal(rr->d, a->d, al, t);\n } else {\n int j, k;\n j = BN_num_bits_word((BN_ULONG)al);\n j = 1 << (j - 1);\n k = j + j;\n if (al == j) {\n if (bn_wexpand(tmp, k * 2) == NULL)\n goto err;\n bn_sqr_recursive(rr->d, a->d, al, tmp->d);\n } else {\n if (bn_wexpand(tmp, max) == NULL)\n goto err;\n bn_sqr_normal(rr->d, a->d, al, tmp->d);\n }\n }\n#else\n if (bn_wexpand(tmp, max) == NULL)\n goto err;\n bn_sqr_normal(rr->d, a->d, al, tmp->d);\n#endif\n }\n rr->neg = 0;\n rr->top = max;\n rr->flags |= BN_FLG_FIXED_TOP;\n if (r != rr && BN_copy(r, rr) == NULL)\n goto err;\n ret = 1;\n err:\n bn_check_top(rr);\n bn_check_top(tmp);\n BN_CTX_end(ctx);\n return ret;\n}', 'void bn_sqr_normal(BN_ULONG *r, const BN_ULONG *a, int n, BN_ULONG *tmp)\n{\n int i, j, max;\n const BN_ULONG *ap;\n BN_ULONG *rp;\n max = n * 2;\n ap = a;\n rp = r;\n rp[0] = rp[max - 1] = 0;\n rp++;\n j = n;\n if (--j > 0) {\n ap++;\n rp[j] = bn_mul_words(rp, ap, j, ap[-1]);\n rp += 2;\n }\n for (i = n - 2; i > 0; i--) {\n j--;\n ap++;\n rp[j] = bn_mul_add_words(rp, ap, j, ap[-1]);\n rp += 2;\n }\n bn_add_words(r, r, r, max);\n bn_sqr_words(tmp, a, n);\n bn_add_words(r, r, tmp, max);\n}'] |
23,115 | 0 | https://github.com/openssl/openssl/blob/1fac96e4d6484a517f2ebe99b72016726391723c/crypto/asn1/asn1_lib.c/#L222 | static void asn1_put_length(unsigned char **pp, int length)
{
unsigned char *p= *pp;
int i,l;
if (length <= 127)
*(p++)=(unsigned char)length;
else
{
l=length;
for (i=0; l > 0; i++)
l>>=8;
*(p++)=i|0x80;
l=i;
while (i-- > 0)
{
p[i]=length&0xff;
length>>=8;
}
p+=l;
}
*pp=p;
} | ['int PKCS7_dataFinal(PKCS7 *p7, BIO *bio)\n\t{\n\tint ret=0;\n\tint i,j;\n\tBIO *btmp;\n\tBUF_MEM *buf_mem=NULL;\n\tBUF_MEM *buf=NULL;\n\tPKCS7_SIGNER_INFO *si;\n\tEVP_MD_CTX *mdc,ctx_tmp;\n\tSTACK *sk,*si_sk=NULL;\n\tunsigned char *p,*pp=NULL;\n\tint x;\n\tASN1_OCTET_STRING *os=NULL;\n\ti=OBJ_obj2nid(p7->type);\n\tp7->state=PKCS7_S_HEADER;\n\tswitch (i)\n\t\t{\n\tcase NID_pkcs7_signedAndEnveloped:\n\t\tsi_sk=p7->d.signed_and_enveloped->signer_info;\n\t\tos=ASN1_OCTET_STRING_new();\n\t\tp7->d.signed_and_enveloped->enc_data->enc_data=os;\n\t\tbreak;\n\tcase NID_pkcs7_enveloped:\n\t\tos=ASN1_OCTET_STRING_new();\n\t\tp7->d.enveloped->enc_data->enc_data=os;\n\t\tbreak;\n\tcase NID_pkcs7_signed:\n\t\tsi_sk=p7->d.sign->signer_info;\n\t\tos=p7->d.sign->contents->d.data;\n\t\tif(p7->detached) {\n\t\t\tASN1_OCTET_STRING_free(os);\n\t\t\tp7->d.sign->contents->d.data = NULL;\n\t\t}\n\t\tbreak;\n\t\t}\n\tif (si_sk != NULL)\n\t\t{\n\t\tif ((buf=BUF_MEM_new()) == NULL)\n\t\t\t{\n\t\t\tPKCS7err(PKCS7_F_PKCS7_DATASIGN,ERR_R_BIO_LIB);\n\t\t\tgoto err;\n\t\t\t}\n\t\tfor (i=0; i<sk_num(si_sk); i++)\n\t\t\t{\n\t\t\tsi=(PKCS7_SIGNER_INFO *)\n\t\t\t\tsk_value(si_sk,i);\n\t\t\tif (si->pkey == NULL) continue;\n\t\t\tj=OBJ_obj2nid(si->digest_alg->algorithm);\n\t\t\tbtmp=bio;\n\t\t\tfor (;;)\n\t\t\t\t{\n\t\t\t\tif ((btmp=BIO_find_type(btmp,BIO_TYPE_MD))\n\t\t\t\t\t== NULL)\n\t\t\t\t\t{\n\t\t\t\t\tPKCS7err(PKCS7_F_PKCS7_DATASIGN,PKCS7_R_UNABLE_TO_FIND_MESSAGE_DIGEST);\n\t\t\t\t\tgoto err;\n\t\t\t\t\t}\n\t\t\t\tBIO_get_md_ctx(btmp,&mdc);\n\t\t\t\tif (mdc == NULL)\n\t\t\t\t\t{\n\t\t\t\t\tPKCS7err(PKCS7_F_PKCS7_DATASIGN,PKCS7_R_INTERNAL_ERROR);\n\t\t\t\t\tgoto err;\n\t\t\t\t\t}\n\t\t\t\tif (EVP_MD_type(EVP_MD_CTX_type(mdc)) == j)\n\t\t\t\t\tbreak;\n\t\t\t\telse\n\t\t\t\t\tbtmp=btmp->next_bio;\n\t\t\t\t}\n\t\t\tmemcpy(&ctx_tmp,mdc,sizeof(ctx_tmp));\n\t\t\tif (!BUF_MEM_grow(buf,EVP_PKEY_size(si->pkey)))\n\t\t\t\t{\n\t\t\t\tPKCS7err(PKCS7_F_PKCS7_DATASIGN,ERR_R_BIO_LIB);\n\t\t\t\tgoto err;\n\t\t\t\t}\n\t\t\tsk=si->auth_attr;\n\t\t\tif ((sk != NULL) && (sk_num(sk) != 0))\n\t\t\t\t{\n\t\t\t\tunsigned char md_data[EVP_MAX_MD_SIZE];\n\t\t\t\tunsigned int md_len;\n\t\t\t\tASN1_OCTET_STRING *digest;\n\t\t\t\tASN1_UTCTIME *sign_time;\n\t\t\t\tconst EVP_MD *md_tmp;\n\t\t\t\tsign_time=X509_gmtime_adj(NULL,0);\n\t\t\t\tPKCS7_add_signed_attribute(si,\n\t\t\t\t\tNID_pkcs9_signingTime,\n\t\t\t\t\tV_ASN1_UTCTIME,sign_time);\n\t\t\t\tmd_tmp=EVP_MD_CTX_type(&ctx_tmp);\n\t\t\t\tEVP_DigestFinal(&ctx_tmp,md_data,&md_len);\n\t\t\t\tdigest=ASN1_OCTET_STRING_new();\n\t\t\t\tASN1_OCTET_STRING_set(digest,md_data,md_len);\n\t\t\t\tPKCS7_add_signed_attribute(si,\n\t\t\t\t\tNID_pkcs9_messageDigest,\n\t\t\t\t\tV_ASN1_OCTET_STRING,digest);\n\t\t\t\tEVP_SignInit(&ctx_tmp,md_tmp);\n\t\t\t\tx=i2d_ASN1_SET(sk,NULL,i2d_X509_ATTRIBUTE,\n\t\t\t\t\tV_ASN1_SET,V_ASN1_UNIVERSAL, IS_SET);\n\t\t\t\tpp=(unsigned char *)Malloc(x);\n\t\t\t\tp=pp;\n\t\t\t\ti2d_ASN1_SET(sk,&p,i2d_X509_ATTRIBUTE,\n\t\t\t\t\tV_ASN1_SET,V_ASN1_UNIVERSAL, IS_SET);\n\t\t\t\tEVP_SignUpdate(&ctx_tmp,pp,x);\n\t\t\t\tFree(pp);\n\t\t\t\tpp=NULL;\n\t\t\t\t}\n\t\t\tif (si->pkey->type == EVP_PKEY_DSA)\n\t\t\t\tctx_tmp.digest=EVP_dss1();\n\t\t\tif (!EVP_SignFinal(&ctx_tmp,(unsigned char *)buf->data,\n\t\t\t\t(unsigned int *)&buf->length,si->pkey))\n\t\t\t\t{\n\t\t\t\tPKCS7err(PKCS7_F_PKCS7_DATASIGN,ERR_R_EVP_LIB);\n\t\t\t\tgoto err;\n\t\t\t\t}\n\t\t\tif (!ASN1_STRING_set(si->enc_digest,\n\t\t\t\t(unsigned char *)buf->data,buf->length))\n\t\t\t\t{\n\t\t\t\tPKCS7err(PKCS7_F_PKCS7_DATASIGN,ERR_R_ASN1_LIB);\n\t\t\t\tgoto err;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\tif (!p7->detached)\n\t\t{\n\t\tbtmp=BIO_find_type(bio,BIO_TYPE_MEM);\n\t\tif (btmp == NULL)\n\t\t\t{\n\t\t\tPKCS7err(PKCS7_F_PKCS7_DATASIGN,PKCS7_R_UNABLE_TO_FIND_MEM_BIO);\n\t\t\tgoto err;\n\t\t\t}\n\t\tBIO_get_mem_ptr(btmp,&buf_mem);\n\t\tASN1_OCTET_STRING_set(os,\n\t\t\t(unsigned char *)buf_mem->data,buf_mem->length);\n\t\t}\n\tif (pp != NULL) Free(pp);\n\tpp=NULL;\n\tret=1;\nerr:\n\tif (buf != NULL) BUF_MEM_free(buf);\n\treturn(ret);\n\t}', 'int i2d_ASN1_SET(STACK *a, unsigned char **pp, int (*func)(), int ex_tag,\n\t int ex_class, int is_set)\n\t{\n\tint ret=0,r;\n\tint i;\n\tunsigned char *p;\n unsigned char *pStart, *pTempMem;\n MYBLOB *rgSetBlob;\n int totSize;\n\tif (a == NULL) return(0);\n\tfor (i=sk_num(a)-1; i>=0; i--)\n\t\tret+=func(sk_value(a,i),NULL);\n\tr=ASN1_object_size(1,ret,ex_tag);\n\tif (pp == NULL) return(r);\n\tp= *pp;\n\tASN1_put_object(&p,1,ret,ex_tag,ex_class);\n\tif(!is_set || (sk_num(a) < 2))\n\t\t{\n\t\tfor (i=0; i<sk_num(a); i++)\n \tfunc(sk_value(a,i),&p);\n\t\t*pp=p;\n\t\treturn(r);\n\t\t}\n pStart = p;\n rgSetBlob = (MYBLOB *)Malloc( sk_num(a) * sizeof(MYBLOB));\n for (i=0; i<sk_num(a); i++)\n\t {\n rgSetBlob[i].pbData = p;\n func(sk_value(a,i),&p);\n rgSetBlob[i].cbData = p - rgSetBlob[i].pbData;\n\t\t}\n *pp=p;\n totSize = p - pStart;\n qsort( rgSetBlob, sk_num(a), sizeof(MYBLOB), SetBlobCmp);\n pTempMem = Malloc(totSize);\n p = pTempMem;\n for(i=0; i<sk_num(a); ++i)\n\t\t{\n memcpy(p, rgSetBlob[i].pbData, rgSetBlob[i].cbData);\n p += rgSetBlob[i].cbData;\n\t\t}\n memcpy(pStart, pTempMem, totSize);\n Free(pTempMem);\n Free(rgSetBlob);\n return(r);\n }', 'void ASN1_put_object(unsigned char **pp, int constructed, int length, int tag,\n\t int xclass)\n\t{\n\tunsigned char *p= *pp;\n\tint i;\n\ti=(constructed)?V_ASN1_CONSTRUCTED:0;\n\ti|=(xclass&V_ASN1_PRIVATE);\n\tif (tag < 31)\n\t\t*(p++)=i|(tag&V_ASN1_PRIMITIVE_TAG);\n\telse\n\t\t{\n\t\t*(p++)=i|V_ASN1_PRIMITIVE_TAG;\n\t\twhile (tag > 0x7f)\n\t\t\t{\n\t\t\t*(p++)=(tag&0x7f)|0x80;\n\t\t\ttag>>=7;\n\t\t\t}\n\t\t*(p++)=(tag&0x7f);\n\t\t}\n\tif ((constructed == 2) && (length == 0))\n\t\t*(p++)=0x80;\n\telse\n\t\tasn1_put_length(&p,length);\n\t*pp=p;\n\t}', 'static void asn1_put_length(unsigned char **pp, int length)\n\t{\n\tunsigned char *p= *pp;\n\tint i,l;\n\tif (length <= 127)\n\t\t*(p++)=(unsigned char)length;\n\telse\n\t\t{\n\t\tl=length;\n\t\tfor (i=0; l > 0; i++)\n\t\t\tl>>=8;\n\t\t*(p++)=i|0x80;\n\t\tl=i;\n\t\twhile (i-- > 0)\n\t\t\t{\n\t\t\tp[i]=length&0xff;\n\t\t\tlength>>=8;\n\t\t\t}\n\t\tp+=l;\n\t\t}\n\t*pp=p;\n\t}'] |
23,116 | 0 | https://github.com/openssl/openssl/blob/16da72a824eddebb7d85297bea868be3a6f43c0e/crypto/mem.c/#L312 | void CRYPTO_free(void *str, const char *file, int line)
{
INCREMENT(free_count);
if (free_impl != NULL && free_impl != &CRYPTO_free) {
free_impl(str, file, line);
return;
}
#if !defined(OPENSSL_NO_CRYPTO_MDEBUG) && !defined(FIPS_MODE)
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
} | ['void CMAC_CTX_free(CMAC_CTX *ctx)\n{\n if (!ctx)\n return;\n CMAC_CTX_cleanup(ctx);\n EVP_CIPHER_CTX_free(ctx->cctx);\n OPENSSL_free(ctx);\n}', 'void CMAC_CTX_cleanup(CMAC_CTX *ctx)\n{\n EVP_CIPHER_CTX_reset(ctx->cctx);\n OPENSSL_cleanse(ctx->tbl, EVP_MAX_BLOCK_LENGTH);\n OPENSSL_cleanse(ctx->k1, EVP_MAX_BLOCK_LENGTH);\n OPENSSL_cleanse(ctx->k2, EVP_MAX_BLOCK_LENGTH);\n OPENSSL_cleanse(ctx->last_block, EVP_MAX_BLOCK_LENGTH);\n ctx->nlast_block = -1;\n}', 'int EVP_CIPHER_CTX_reset(EVP_CIPHER_CTX *ctx)\n{\n if (ctx == NULL)\n return 1;\n if (ctx->cipher == NULL || ctx->cipher->prov == NULL)\n goto legacy;\n if (ctx->provctx != NULL) {\n if (ctx->cipher->freectx != NULL)\n ctx->cipher->freectx(ctx->provctx);\n ctx->provctx = NULL;\n }\n if (ctx->fetched_cipher != NULL)\n EVP_CIPHER_meth_free(ctx->fetched_cipher);\n memset(ctx, 0, sizeof(*ctx));\n return 1;\n legacy:\n if (ctx->cipher != NULL) {\n if (ctx->cipher->cleanup && !ctx->cipher->cleanup(ctx))\n return 0;\n if (ctx->cipher_data && ctx->cipher->ctx_size)\n OPENSSL_cleanse(ctx->cipher_data, ctx->cipher->ctx_size);\n }\n OPENSSL_free(ctx->cipher_data);\n#if !defined(OPENSSL_NO_ENGINE) && !defined(FIPS_MODE)\n ENGINE_finish(ctx->engine);\n#endif\n memset(ctx, 0, sizeof(*ctx));\n return 1;\n}', 'void CRYPTO_free(void *str, const char *file, int line)\n{\n INCREMENT(free_count);\n if (free_impl != NULL && free_impl != &CRYPTO_free) {\n free_impl(str, file, line);\n return;\n }\n#if !defined(OPENSSL_NO_CRYPTO_MDEBUG) && !defined(FIPS_MODE)\n if (call_malloc_debug) {\n CRYPTO_mem_debug_free(str, 0, file, line);\n free(str);\n CRYPTO_mem_debug_free(str, 1, file, line);\n } else {\n free(str);\n }\n#else\n free(str);\n#endif\n}'] |
23,117 | 0 | https://github.com/openssl/openssl/blob/43405889f47648ee70c1b412b8b71570e8aaa24a/crypto/rand/ossl_rand.c/#L508 | static int rand_bytes(unsigned char *buf, int num)
{
static volatile int stirred_pool = 0;
int i, j, k;
size_t num_ceil, st_idx, st_num;
int ok;
long md_c[2];
unsigned char local_md[SHA_DIGEST_LENGTH];
EVP_MD_CTX *m;
OSSL_RAND_STATE *sp = &global_state;
#ifndef GETPID_IS_MEANINGLESS
pid_t curr_pid = getpid();
#endif
time_t curr_time = time(NULL);
int do_stir_pool = 0;
#ifdef OPENSSL_SYS_WIN32
FILETIME tv;
# ifdef _WIN32_WCE
SYSTEMTIME t;
GetSystemTime(&t);
SystemTimeToFileTime(&t, &tv);
# else
GetSystemTimeAsFileTime(&tv);
# endif
#elif defined(OPENSSL_SYS_VXWORKS)
struct timespec tv;
clock_gettime(CLOCK_REALTIME, &ts);
#elif defined(OPENSSL_SYS_DSPBIOS)
unsigned long long tv, OPENSSL_rdtsc();
tv = OPENSSL_rdtsc();
#else
struct timeval tv;
gettimeofday(&tv, NULL);
#endif
#ifdef PREDICT
if (rand_predictable) {
unsigned char val = 1;
for (i = 0; i < num; i++)
buf[i] = val++;
return (1);
}
#endif
if (num <= 0)
return 1;
m = EVP_MD_CTX_new();
if (m == NULL)
goto err_mem;
num_ceil =
(1 + (num - 1) / (SHA_DIGEST_LENGTH / 2)) * (SHA_DIGEST_LENGTH / 2);
if (!RUN_ONCE(&ossl_rand_init, do_ossl_rand_init))
goto err_mem;
CRYPTO_THREAD_write_lock(rand_lock);
ASYNC_block_pause();
CRYPTO_THREAD_write_lock(rand_tmp_lock);
locking_threadid = CRYPTO_THREAD_get_current_id();
CRYPTO_THREAD_unlock(rand_tmp_lock);
crypto_lock_rand = 1;
if (!initialized) {
RAND_poll();
initialized = 1;
}
if (!stirred_pool)
do_stir_pool = 1;
ok = (randomness >= RANDOMNESS_NEEDED);
if (!ok) {
randomness -= num;
if (randomness < 0)
randomness = 0;
}
if (do_stir_pool) {
int n = STATE_SIZE;
while (n > 0) {
#if SHA_DIGEST_LENGTH > 20
# error "Please adjust DUMMY_SEED."
#endif
#define DUMMY_SEED "...................."
rand_add(DUMMY_SEED, SHA_DIGEST_LENGTH, 0.0);
n -= SHA_DIGEST_LENGTH;
}
if (ok)
stirred_pool = 1;
}
st_idx = sp->index;
st_num = sp->num;
md_c[0] = sp->md_count[0];
md_c[1] = sp->md_count[1];
memcpy(local_md, sp->md, sizeof sp->md);
sp->index += num_ceil;
if (sp->index > sp->num)
sp->index %= sp->num;
sp->md_count[0] += 1;
crypto_lock_rand = 0;
ASYNC_unblock_pause();
CRYPTO_THREAD_unlock(rand_lock);
while (num > 0) {
j = (num >= SHA_DIGEST_LENGTH / 2) ? SHA_DIGEST_LENGTH / 2 : num;
num -= j;
if (!EVP_DigestInit_ex(m, EVP_sha1(), NULL))
goto err;
#ifndef GETPID_IS_MEANINGLESS
if (curr_pid) {
if (!EVP_DigestUpdate(m, (unsigned char *)&curr_pid, sizeof curr_pid))
goto err;
curr_pid = 0;
}
#endif
if (curr_time) {
if (!EVP_DigestUpdate(m, (unsigned char *)&curr_time, sizeof curr_time))
goto err;
if (!EVP_DigestUpdate(m, (unsigned char *)&tv, sizeof tv))
goto err;
curr_time = 0;
if (!rand_hw_seed(m))
goto err;
}
if (!EVP_DigestUpdate(m, local_md, SHA_DIGEST_LENGTH))
goto err;
if (!EVP_DigestUpdate(m, (unsigned char *)md_c, sizeof(md_c)))
goto err;
k = (st_idx + SHA_DIGEST_LENGTH / 2) - st_num;
if (k > 0) {
if (!EVP_DigestUpdate(m, &sp->state[st_idx], SHA_DIGEST_LENGTH / 2 - k))
goto err;
if (!EVP_DigestUpdate(m, &sp->state[0], k))
goto err;
} else if (!EVP_DigestUpdate(m, &sp->state[st_idx], SHA_DIGEST_LENGTH / 2))
goto err;
if (!EVP_DigestFinal_ex(m, local_md, NULL))
goto err;
for (i = 0; i < SHA_DIGEST_LENGTH / 2; i++) {
sp->state[st_idx++] ^= local_md[i];
if (st_idx >= st_num)
st_idx = 0;
if (i < j)
*(buf++) = local_md[i + SHA_DIGEST_LENGTH / 2];
}
}
if (!EVP_DigestInit_ex(m, EVP_sha1(), NULL)
|| !EVP_DigestUpdate(m, (unsigned char *)md_c, sizeof(md_c))
|| !EVP_DigestUpdate(m, local_md, SHA_DIGEST_LENGTH))
goto err;
CRYPTO_THREAD_write_lock(rand_lock);
ASYNC_block_pause();
if (!EVP_DigestUpdate(m, sp->md, sizeof(sp->md))
|| !EVP_DigestFinal_ex(m, sp->md, NULL)) {
ASYNC_unblock_pause();
CRYPTO_THREAD_unlock(rand_lock);
goto err;
}
ASYNC_unblock_pause();
CRYPTO_THREAD_unlock(rand_lock);
EVP_MD_CTX_free(m);
if (ok)
return (1);
RANDerr(RAND_F_RAND_BYTES, RAND_R_PRNG_NOT_SEEDED);
ERR_add_error_data(1, "You need to read the OpenSSL FAQ, "
"https://www.openssl.org/docs/faq.html");
return (0);
err:
RANDerr(RAND_F_RAND_BYTES, ERR_R_EVP_LIB);
EVP_MD_CTX_free(m);
return 0;
err_mem:
RANDerr(RAND_F_RAND_BYTES, ERR_R_MALLOC_FAILURE);
EVP_MD_CTX_free(m);
return 0;
} | ['static int rand_bytes(unsigned char *buf, int num)\n{\n static volatile int stirred_pool = 0;\n int i, j, k;\n size_t num_ceil, st_idx, st_num;\n int ok;\n long md_c[2];\n unsigned char local_md[SHA_DIGEST_LENGTH];\n EVP_MD_CTX *m;\n OSSL_RAND_STATE *sp = &global_state;\n#ifndef GETPID_IS_MEANINGLESS\n pid_t curr_pid = getpid();\n#endif\n time_t curr_time = time(NULL);\n int do_stir_pool = 0;\n#ifdef OPENSSL_SYS_WIN32\n FILETIME tv;\n# ifdef _WIN32_WCE\n SYSTEMTIME t;\n GetSystemTime(&t);\n SystemTimeToFileTime(&t, &tv);\n# else\n GetSystemTimeAsFileTime(&tv);\n# endif\n#elif defined(OPENSSL_SYS_VXWORKS)\n struct timespec tv;\n clock_gettime(CLOCK_REALTIME, &ts);\n#elif defined(OPENSSL_SYS_DSPBIOS)\n unsigned long long tv, OPENSSL_rdtsc();\n tv = OPENSSL_rdtsc();\n#else\n struct timeval tv;\n gettimeofday(&tv, NULL);\n#endif\n#ifdef PREDICT\n if (rand_predictable) {\n unsigned char val = 1;\n for (i = 0; i < num; i++)\n buf[i] = val++;\n return (1);\n }\n#endif\n if (num <= 0)\n return 1;\n m = EVP_MD_CTX_new();\n if (m == NULL)\n goto err_mem;\n num_ceil =\n (1 + (num - 1) / (SHA_DIGEST_LENGTH / 2)) * (SHA_DIGEST_LENGTH / 2);\n if (!RUN_ONCE(&ossl_rand_init, do_ossl_rand_init))\n goto err_mem;\n CRYPTO_THREAD_write_lock(rand_lock);\n ASYNC_block_pause();\n CRYPTO_THREAD_write_lock(rand_tmp_lock);\n locking_threadid = CRYPTO_THREAD_get_current_id();\n CRYPTO_THREAD_unlock(rand_tmp_lock);\n crypto_lock_rand = 1;\n if (!initialized) {\n RAND_poll();\n initialized = 1;\n }\n if (!stirred_pool)\n do_stir_pool = 1;\n ok = (randomness >= RANDOMNESS_NEEDED);\n if (!ok) {\n randomness -= num;\n if (randomness < 0)\n randomness = 0;\n }\n if (do_stir_pool) {\n int n = STATE_SIZE;\n while (n > 0) {\n#if SHA_DIGEST_LENGTH > 20\n# error "Please adjust DUMMY_SEED."\n#endif\n#define DUMMY_SEED "...................."\n rand_add(DUMMY_SEED, SHA_DIGEST_LENGTH, 0.0);\n n -= SHA_DIGEST_LENGTH;\n }\n if (ok)\n stirred_pool = 1;\n }\n st_idx = sp->index;\n st_num = sp->num;\n md_c[0] = sp->md_count[0];\n md_c[1] = sp->md_count[1];\n memcpy(local_md, sp->md, sizeof sp->md);\n sp->index += num_ceil;\n if (sp->index > sp->num)\n sp->index %= sp->num;\n sp->md_count[0] += 1;\n crypto_lock_rand = 0;\n ASYNC_unblock_pause();\n CRYPTO_THREAD_unlock(rand_lock);\n while (num > 0) {\n j = (num >= SHA_DIGEST_LENGTH / 2) ? SHA_DIGEST_LENGTH / 2 : num;\n num -= j;\n if (!EVP_DigestInit_ex(m, EVP_sha1(), NULL))\n goto err;\n#ifndef GETPID_IS_MEANINGLESS\n if (curr_pid) {\n if (!EVP_DigestUpdate(m, (unsigned char *)&curr_pid, sizeof curr_pid))\n goto err;\n curr_pid = 0;\n }\n#endif\n if (curr_time) {\n if (!EVP_DigestUpdate(m, (unsigned char *)&curr_time, sizeof curr_time))\n goto err;\n if (!EVP_DigestUpdate(m, (unsigned char *)&tv, sizeof tv))\n goto err;\n curr_time = 0;\n if (!rand_hw_seed(m))\n goto err;\n }\n if (!EVP_DigestUpdate(m, local_md, SHA_DIGEST_LENGTH))\n goto err;\n if (!EVP_DigestUpdate(m, (unsigned char *)md_c, sizeof(md_c)))\n goto err;\n k = (st_idx + SHA_DIGEST_LENGTH / 2) - st_num;\n if (k > 0) {\n if (!EVP_DigestUpdate(m, &sp->state[st_idx], SHA_DIGEST_LENGTH / 2 - k))\n goto err;\n if (!EVP_DigestUpdate(m, &sp->state[0], k))\n goto err;\n } else if (!EVP_DigestUpdate(m, &sp->state[st_idx], SHA_DIGEST_LENGTH / 2))\n goto err;\n if (!EVP_DigestFinal_ex(m, local_md, NULL))\n goto err;\n for (i = 0; i < SHA_DIGEST_LENGTH / 2; i++) {\n sp->state[st_idx++] ^= local_md[i];\n if (st_idx >= st_num)\n st_idx = 0;\n if (i < j)\n *(buf++) = local_md[i + SHA_DIGEST_LENGTH / 2];\n }\n }\n if (!EVP_DigestInit_ex(m, EVP_sha1(), NULL)\n || !EVP_DigestUpdate(m, (unsigned char *)md_c, sizeof(md_c))\n || !EVP_DigestUpdate(m, local_md, SHA_DIGEST_LENGTH))\n goto err;\n CRYPTO_THREAD_write_lock(rand_lock);\n ASYNC_block_pause();\n if (!EVP_DigestUpdate(m, sp->md, sizeof(sp->md))\n || !EVP_DigestFinal_ex(m, sp->md, NULL)) {\n ASYNC_unblock_pause();\n CRYPTO_THREAD_unlock(rand_lock);\n goto err;\n }\n ASYNC_unblock_pause();\n CRYPTO_THREAD_unlock(rand_lock);\n EVP_MD_CTX_free(m);\n if (ok)\n return (1);\n RANDerr(RAND_F_RAND_BYTES, RAND_R_PRNG_NOT_SEEDED);\n ERR_add_error_data(1, "You need to read the OpenSSL FAQ, "\n "https://www.openssl.org/docs/faq.html");\n return (0);\n err:\n RANDerr(RAND_F_RAND_BYTES, ERR_R_EVP_LIB);\n EVP_MD_CTX_free(m);\n return 0;\n err_mem:\n RANDerr(RAND_F_RAND_BYTES, ERR_R_MALLOC_FAILURE);\n EVP_MD_CTX_free(m);\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 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 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 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}'] |
23,118 | 0 | https://github.com/openssl/openssl/blob/8d9fb8c8dbdaad8c7e6009c96618b17aac9662b9/ssl/s3_lib.c/#L2887 | int ssl3_new(SSL *s)
{
SSL3_STATE *s3;
if ((s3 = OPENSSL_zalloc(sizeof(*s3))) == NULL)
goto err;
s->s3 = s3;
#ifndef OPENSSL_NO_SRP
if (!SSL_SRP_CTX_init(s))
goto err;
#endif
s->method->ssl_clear(s);
return (1);
err:
return (0);
} | ['int ssl3_new(SSL *s)\n{\n SSL3_STATE *s3;\n if ((s3 = OPENSSL_zalloc(sizeof(*s3))) == NULL)\n goto err;\n s->s3 = s3;\n#ifndef OPENSSL_NO_SRP\n if (!SSL_SRP_CTX_init(s))\n goto err;\n#endif\n s->method->ssl_clear(s);\n return (1);\n err:\n return (0);\n}', 'void *CRYPTO_zalloc(size_t num, const char *file, int line)\n{\n void *ret = CRYPTO_malloc(num, file, line);\n if (ret != NULL)\n memset(ret, 0, num);\n return ret;\n}', 'void *CRYPTO_malloc(size_t num, const char *file, int line)\n{\n void *ret = NULL;\n if (malloc_impl != NULL && malloc_impl != CRYPTO_malloc)\n return malloc_impl(num, file, line);\n if (num <= 0)\n return NULL;\n allow_customize = 0;\n#ifndef OPENSSL_NO_CRYPTO_MDEBUG\n if (call_malloc_debug) {\n CRYPTO_mem_debug_malloc(NULL, num, 0, file, line);\n ret = malloc(num);\n CRYPTO_mem_debug_malloc(ret, num, 1, file, line);\n } else {\n ret = malloc(num);\n }\n#else\n osslargused(file); osslargused(line);\n ret = malloc(num);\n#endif\n return ret;\n}'] |
23,119 | 0 | https://github.com/libav/libav/blob/e5d403720ec4914169f55913a5a5555d908500b6/libavcodec/h264.c/#L1008 | static void init_dequant_tables(H264Context *h)
{
int i, x;
init_dequant4_coeff_table(h);
if (h->pps.transform_8x8_mode)
init_dequant8_coeff_table(h);
if (h->sps.transform_bypass) {
for (i = 0; i < 6; i++)
for (x = 0; x < 16; x++)
h->dequant4_coeff[i][0][x] = 1 << 6;
if (h->pps.transform_8x8_mode)
for (i = 0; i < 6; i++)
for (x = 0; x < 64; x++)
h->dequant8_coeff[i][0][x] = 1 << 6;
}
} | ['static void init_dequant_tables(H264Context *h)\n{\n int i, x;\n init_dequant4_coeff_table(h);\n if (h->pps.transform_8x8_mode)\n init_dequant8_coeff_table(h);\n if (h->sps.transform_bypass) {\n for (i = 0; i < 6; i++)\n for (x = 0; x < 16; x++)\n h->dequant4_coeff[i][0][x] = 1 << 6;\n if (h->pps.transform_8x8_mode)\n for (i = 0; i < 6; i++)\n for (x = 0; x < 64; x++)\n h->dequant8_coeff[i][0][x] = 1 << 6;\n }\n}', 'static void init_dequant4_coeff_table(H264Context *h)\n{\n int i, j, q, x;\n const int max_qp = 51 + 6 * (h->sps.bit_depth_luma - 8);\n for (i = 0; i < 6; i++) {\n h->dequant4_coeff[i] = h->dequant4_buffer[i];\n for (j = 0; j < i; j++)\n if (!memcmp(h->pps.scaling_matrix4[j], h->pps.scaling_matrix4[i],\n 16 * sizeof(uint8_t))) {\n h->dequant4_coeff[i] = h->dequant4_buffer[j];\n break;\n }\n if (j < i)\n continue;\n for (q = 0; q < max_qp + 1; q++) {\n int shift = div6[q] + 2;\n int idx = rem6[q];\n for (x = 0; x < 16; x++)\n h->dequant4_coeff[i][q][(x >> 2) | ((x << 2) & 0xF)] =\n ((uint32_t)dequant4_coeff_init[idx][(x & 1) + ((x >> 2) & 1)] *\n h->pps.scaling_matrix4[i][x]) << shift;\n }\n }\n}'] |
23,120 | 0 | https://github.com/libav/libav/blob/ccea588f831906084b8c8235222920e6984beb72/libavcodec/motion_est.c/#L173 | static av_always_inline int cmp_direct_inline(MpegEncContext *s, const int x, const int y, const int subx, const int suby,
const int size, const int h, int ref_index, int src_index,
me_cmp_func cmp_func, me_cmp_func chroma_cmp_func, int qpel){
MotionEstContext * const c= &s->me;
const int stride= c->stride;
const int hx= subx + (x<<(1+qpel));
const int hy= suby + (y<<(1+qpel));
uint8_t * const * const ref= c->ref[ref_index];
uint8_t * const * const src= c->src[src_index];
int d;
assert(x >= c->xmin && hx <= c->xmax<<(qpel+1) && y >= c->ymin && hy <= c->ymax<<(qpel+1));
if(x >= c->xmin && hx <= c->xmax<<(qpel+1) && y >= c->ymin && hy <= c->ymax<<(qpel+1)){
const int time_pp= s->pp_time;
const int time_pb= s->pb_time;
const int mask= 2*qpel+1;
if(s->mv_type==MV_TYPE_8X8){
int i;
for(i=0; i<4; i++){
int fx = c->direct_basis_mv[i][0] + hx;
int fy = c->direct_basis_mv[i][1] + hy;
int bx = hx ? fx - c->co_located_mv[i][0] : c->co_located_mv[i][0]*(time_pb - time_pp)/time_pp + ((i &1)<<(qpel+4));
int by = hy ? fy - c->co_located_mv[i][1] : c->co_located_mv[i][1]*(time_pb - time_pp)/time_pp + ((i>>1)<<(qpel+4));
int fxy= (fx&mask) + ((fy&mask)<<(qpel+1));
int bxy= (bx&mask) + ((by&mask)<<(qpel+1));
uint8_t *dst= c->temp + 8*(i&1) + 8*stride*(i>>1);
if(qpel){
c->qpel_put[1][fxy](dst, ref[0] + (fx>>2) + (fy>>2)*stride, stride);
c->qpel_avg[1][bxy](dst, ref[8] + (bx>>2) + (by>>2)*stride, stride);
}else{
c->hpel_put[1][fxy](dst, ref[0] + (fx>>1) + (fy>>1)*stride, stride, 8);
c->hpel_avg[1][bxy](dst, ref[8] + (bx>>1) + (by>>1)*stride, stride, 8);
}
}
}else{
int fx = c->direct_basis_mv[0][0] + hx;
int fy = c->direct_basis_mv[0][1] + hy;
int bx = hx ? fx - c->co_located_mv[0][0] : (c->co_located_mv[0][0]*(time_pb - time_pp)/time_pp);
int by = hy ? fy - c->co_located_mv[0][1] : (c->co_located_mv[0][1]*(time_pb - time_pp)/time_pp);
int fxy= (fx&mask) + ((fy&mask)<<(qpel+1));
int bxy= (bx&mask) + ((by&mask)<<(qpel+1));
if(qpel){
c->qpel_put[1][fxy](c->temp , ref[0] + (fx>>2) + (fy>>2)*stride , stride);
c->qpel_put[1][fxy](c->temp + 8 , ref[0] + (fx>>2) + (fy>>2)*stride + 8 , stride);
c->qpel_put[1][fxy](c->temp + 8*stride, ref[0] + (fx>>2) + (fy>>2)*stride + 8*stride, stride);
c->qpel_put[1][fxy](c->temp + 8 + 8*stride, ref[0] + (fx>>2) + (fy>>2)*stride + 8 + 8*stride, stride);
c->qpel_avg[1][bxy](c->temp , ref[8] + (bx>>2) + (by>>2)*stride , stride);
c->qpel_avg[1][bxy](c->temp + 8 , ref[8] + (bx>>2) + (by>>2)*stride + 8 , stride);
c->qpel_avg[1][bxy](c->temp + 8*stride, ref[8] + (bx>>2) + (by>>2)*stride + 8*stride, stride);
c->qpel_avg[1][bxy](c->temp + 8 + 8*stride, ref[8] + (bx>>2) + (by>>2)*stride + 8 + 8*stride, stride);
}else{
assert((fx>>1) + 16*s->mb_x >= -16);
assert((fy>>1) + 16*s->mb_y >= -16);
assert((fx>>1) + 16*s->mb_x <= s->width);
assert((fy>>1) + 16*s->mb_y <= s->height);
assert((bx>>1) + 16*s->mb_x >= -16);
assert((by>>1) + 16*s->mb_y >= -16);
assert((bx>>1) + 16*s->mb_x <= s->width);
assert((by>>1) + 16*s->mb_y <= s->height);
c->hpel_put[0][fxy](c->temp, ref[0] + (fx>>1) + (fy>>1)*stride, stride, 16);
c->hpel_avg[0][bxy](c->temp, ref[8] + (bx>>1) + (by>>1)*stride, stride, 16);
}
}
d = cmp_func(s, c->temp, src[0], stride, 16);
}else
d= 256*256*256*32;
return d;
} | ['void ff_estimate_b_frame_motion(MpegEncContext * s,\n int mb_x, int mb_y)\n{\n MotionEstContext * const c= &s->me;\n const int penalty_factor= c->mb_penalty_factor;\n int fmin, bmin, dmin, fbmin, bimin, fimin;\n int type=0;\n const int xy = mb_y*s->mb_stride + mb_x;\n init_ref(c, s->new_picture.f->data, s->last_picture.f->data,\n s->next_picture.f->data, 16 * mb_x, 16 * mb_y, 2);\n get_limits(s, 16*mb_x, 16*mb_y);\n c->skip=0;\n if (s->codec_id == AV_CODEC_ID_MPEG4 && s->next_picture.mbskip_table[xy]) {\n int score= direct_search(s, mb_x, mb_y);\n score= ((unsigned)(score*score + 128*256))>>16;\n c->mc_mb_var_sum_temp += score;\n s->current_picture.mc_mb_var[mb_y*s->mb_stride + mb_x] = score;\n s->mb_type[mb_y*s->mb_stride + mb_x]= CANDIDATE_MB_TYPE_DIRECT0;\n return;\n }\n if (s->codec_id == AV_CODEC_ID_MPEG4)\n dmin= direct_search(s, mb_x, mb_y);\n else\n dmin= INT_MAX;\n c->skip=0;\n fmin = estimate_motion_b(s, mb_x, mb_y, s->b_forw_mv_table, 0, s->f_code) +\n 3 * penalty_factor;\n c->skip=0;\n bmin = estimate_motion_b(s, mb_x, mb_y, s->b_back_mv_table, 2, s->b_code) +\n 2 * penalty_factor;\n ff_dlog(s, " %d %d ", s->b_forw_mv_table[xy][0], s->b_forw_mv_table[xy][1]);\n c->skip=0;\n fbmin= bidir_refine(s, mb_x, mb_y) + penalty_factor;\n ff_dlog(s, "%d %d %d %d\\n", dmin, fmin, bmin, fbmin);\n if (s->avctx->flags & AV_CODEC_FLAG_INTERLACED_ME) {\n c->skip=0;\n c->current_mv_penalty= c->mv_penalty[s->f_code] + MAX_MV;\n fimin= interlaced_search(s, 0,\n s->b_field_mv_table[0], s->b_field_select_table[0],\n s->b_forw_mv_table[xy][0], s->b_forw_mv_table[xy][1], 0);\n c->current_mv_penalty= c->mv_penalty[s->b_code] + MAX_MV;\n bimin= interlaced_search(s, 2,\n s->b_field_mv_table[1], s->b_field_select_table[1],\n s->b_back_mv_table[xy][0], s->b_back_mv_table[xy][1], 0);\n }else\n fimin= bimin= INT_MAX;\n {\n int score= fmin;\n type = CANDIDATE_MB_TYPE_FORWARD;\n if (dmin <= score){\n score = dmin;\n type = CANDIDATE_MB_TYPE_DIRECT;\n }\n if(bmin<score){\n score=bmin;\n type= CANDIDATE_MB_TYPE_BACKWARD;\n }\n if(fbmin<score){\n score=fbmin;\n type= CANDIDATE_MB_TYPE_BIDIR;\n }\n if(fimin<score){\n score=fimin;\n type= CANDIDATE_MB_TYPE_FORWARD_I;\n }\n if(bimin<score){\n score=bimin;\n type= CANDIDATE_MB_TYPE_BACKWARD_I;\n }\n score= ((unsigned)(score*score + 128*256))>>16;\n c->mc_mb_var_sum_temp += score;\n s->current_picture.mc_mb_var[mb_y*s->mb_stride + mb_x] = score;\n }\n if(c->avctx->mb_decision > FF_MB_DECISION_SIMPLE){\n type= CANDIDATE_MB_TYPE_FORWARD | CANDIDATE_MB_TYPE_BACKWARD | CANDIDATE_MB_TYPE_BIDIR | CANDIDATE_MB_TYPE_DIRECT;\n if(fimin < INT_MAX)\n type |= CANDIDATE_MB_TYPE_FORWARD_I;\n if(bimin < INT_MAX)\n type |= CANDIDATE_MB_TYPE_BACKWARD_I;\n if(fimin < INT_MAX && bimin < INT_MAX){\n type |= CANDIDATE_MB_TYPE_BIDIR_I;\n }\n if(dmin>256*256*16) type&= ~CANDIDATE_MB_TYPE_DIRECT;\n if (s->codec_id == AV_CODEC_ID_MPEG4 && type&CANDIDATE_MB_TYPE_DIRECT &&\n s->mpv_flags & FF_MPV_FLAG_MV0 && *(uint32_t*)s->b_direct_mv_table[xy])\n type |= CANDIDATE_MB_TYPE_DIRECT0;\n }\n s->mb_type[mb_y*s->mb_stride + mb_x]= type;\n}', 'static int estimate_motion_b(MpegEncContext *s, int mb_x, int mb_y,\n int16_t (*mv_table)[2], int ref_index, int f_code)\n{\n MotionEstContext * const c= &s->me;\n int mx = 0, my = 0, dmin = 0;\n int P[10][2];\n const int shift= 1+s->quarter_sample;\n const int mot_stride = s->mb_stride;\n const int mot_xy = mb_y*mot_stride + mb_x;\n uint8_t * const mv_penalty= c->mv_penalty[f_code] + MAX_MV;\n int mv_scale;\n c->penalty_factor = get_penalty_factor(s->lambda, s->lambda2, c->avctx->me_cmp);\n c->sub_penalty_factor= get_penalty_factor(s->lambda, s->lambda2, c->avctx->me_sub_cmp);\n c->mb_penalty_factor = get_penalty_factor(s->lambda, s->lambda2, c->avctx->mb_cmp);\n c->current_mv_penalty= mv_penalty;\n get_limits(s, 16*mb_x, 16*mb_y);\n if (s->motion_est != FF_ME_ZERO) {\n P_LEFT[0] = mv_table[mot_xy - 1][0];\n P_LEFT[1] = mv_table[mot_xy - 1][1];\n if (P_LEFT[0] > (c->xmax << shift)) P_LEFT[0] = (c->xmax << shift);\n if (!s->first_slice_line) {\n P_TOP[0] = mv_table[mot_xy - mot_stride ][0];\n P_TOP[1] = mv_table[mot_xy - mot_stride ][1];\n P_TOPRIGHT[0] = mv_table[mot_xy - mot_stride + 1][0];\n P_TOPRIGHT[1] = mv_table[mot_xy - mot_stride + 1][1];\n if (P_TOP[1] > (c->ymax << shift)) P_TOP[1] = (c->ymax << shift);\n if (P_TOPRIGHT[0] < (c->xmin << shift)) P_TOPRIGHT[0] = (c->xmin << shift);\n if (P_TOPRIGHT[1] > (c->ymax << shift)) P_TOPRIGHT[1] = (c->ymax << shift);\n P_MEDIAN[0] = mid_pred(P_LEFT[0], P_TOP[0], P_TOPRIGHT[0]);\n P_MEDIAN[1] = mid_pred(P_LEFT[1], P_TOP[1], P_TOPRIGHT[1]);\n }\n c->pred_x = P_LEFT[0];\n c->pred_y = P_LEFT[1];\n if(mv_table == s->b_forw_mv_table){\n mv_scale= (s->pb_time<<16) / (s->pp_time<<shift);\n }else{\n mv_scale= ((s->pb_time - s->pp_time)<<16) / (s->pp_time<<shift);\n }\n dmin = ff_epzs_motion_search(s, &mx, &my, P, 0, ref_index, s->p_mv_table, mv_scale, 0, 16);\n }\n dmin= c->sub_motion_search(s, &mx, &my, dmin, 0, ref_index, 0, 16);\n if(c->avctx->me_sub_cmp != c->avctx->mb_cmp && !c->skip)\n dmin= get_mb_score(s, mx, my, 0, ref_index, 0, 16, 1);\n mv_table[mot_xy][0]= mx;\n mv_table[mot_xy][1]= my;\n return dmin;\n}', 'int ff_epzs_motion_search(MpegEncContext *s, int *mx_ptr, int *my_ptr,\n int P[10][2], int src_index, int ref_index,\n int16_t (*last_mv)[2], int ref_mv_scale,\n int size, int h)\n{\n MotionEstContext * const c= &s->me;\n if(c->flags==0 && h==16 && size==0){\n return epzs_motion_search_internal(s, mx_ptr, my_ptr, P, src_index, ref_index, last_mv, ref_mv_scale, 0, 0, 16);\n }else{\n return epzs_motion_search_internal(s, mx_ptr, my_ptr, P, src_index, ref_index, last_mv, ref_mv_scale, c->flags, size, h);\n }\n}', 'static av_always_inline int epzs_motion_search_internal(MpegEncContext * s, int *mx_ptr, int *my_ptr,\n int P[10][2], int src_index, int ref_index, int16_t (*last_mv)[2],\n int ref_mv_scale, int flags, int size, int h)\n{\n MotionEstContext * const c= &s->me;\n int best[2]={0, 0};\n int d;\n int dmin;\n unsigned map_generation;\n int penalty_factor;\n const int ref_mv_stride= s->mb_stride;\n const int ref_mv_xy= s->mb_x + s->mb_y*ref_mv_stride;\n me_cmp_func cmpf, chroma_cmpf;\n LOAD_COMMON\n LOAD_COMMON2\n if(c->pre_pass){\n penalty_factor= c->pre_penalty_factor;\n cmpf = s->mecc.me_pre_cmp[size];\n chroma_cmpf = s->mecc.me_pre_cmp[size + 1];\n }else{\n penalty_factor= c->penalty_factor;\n cmpf = s->mecc.me_cmp[size];\n chroma_cmpf = s->mecc.me_cmp[size + 1];\n }\n map_generation= update_map_generation(c);\n assert(cmpf);\n dmin= cmp(s, 0, 0, 0, 0, size, h, ref_index, src_index, cmpf, chroma_cmpf, flags);\n map[0]= map_generation;\n score_map[0]= dmin;\n if ((s->pict_type == AV_PICTURE_TYPE_B && !(c->flags & FLAG_DIRECT)) ||\n s->mpv_flags & FF_MPV_FLAG_MV0)\n dmin += (mv_penalty[pred_x] + mv_penalty[pred_y])*penalty_factor;\n if (s->first_slice_line) {\n CHECK_MV(P_LEFT[0]>>shift, P_LEFT[1]>>shift)\n CHECK_CLIPPED_MV((last_mv[ref_mv_xy][0]*ref_mv_scale + (1<<15))>>16,\n (last_mv[ref_mv_xy][1]*ref_mv_scale + (1<<15))>>16)\n }else{\n if(dmin<((h*h*s->avctx->mv0_threshold)>>8)\n && ( P_LEFT[0] |P_LEFT[1]\n |P_TOP[0] |P_TOP[1]\n |P_TOPRIGHT[0]|P_TOPRIGHT[1])==0){\n *mx_ptr= 0;\n *my_ptr= 0;\n c->skip=1;\n return dmin;\n }\n CHECK_MV( P_MEDIAN[0] >>shift , P_MEDIAN[1] >>shift)\n CHECK_CLIPPED_MV((P_MEDIAN[0]>>shift) , (P_MEDIAN[1]>>shift)-1)\n CHECK_CLIPPED_MV((P_MEDIAN[0]>>shift) , (P_MEDIAN[1]>>shift)+1)\n CHECK_CLIPPED_MV((P_MEDIAN[0]>>shift)-1, (P_MEDIAN[1]>>shift) )\n CHECK_CLIPPED_MV((P_MEDIAN[0]>>shift)+1, (P_MEDIAN[1]>>shift) )\n CHECK_CLIPPED_MV((last_mv[ref_mv_xy][0]*ref_mv_scale + (1<<15))>>16,\n (last_mv[ref_mv_xy][1]*ref_mv_scale + (1<<15))>>16)\n CHECK_MV(P_LEFT[0] >>shift, P_LEFT[1] >>shift)\n CHECK_MV(P_TOP[0] >>shift, P_TOP[1] >>shift)\n CHECK_MV(P_TOPRIGHT[0]>>shift, P_TOPRIGHT[1]>>shift)\n }\n if(dmin>h*h*4){\n if(c->pre_pass){\n CHECK_CLIPPED_MV((last_mv[ref_mv_xy-1][0]*ref_mv_scale + (1<<15))>>16,\n (last_mv[ref_mv_xy-1][1]*ref_mv_scale + (1<<15))>>16)\n if(!s->first_slice_line)\n CHECK_CLIPPED_MV((last_mv[ref_mv_xy-ref_mv_stride][0]*ref_mv_scale + (1<<15))>>16,\n (last_mv[ref_mv_xy-ref_mv_stride][1]*ref_mv_scale + (1<<15))>>16)\n }else{\n CHECK_CLIPPED_MV((last_mv[ref_mv_xy+1][0]*ref_mv_scale + (1<<15))>>16,\n (last_mv[ref_mv_xy+1][1]*ref_mv_scale + (1<<15))>>16)\n if(s->mb_y+1<s->end_mb_y)\n CHECK_CLIPPED_MV((last_mv[ref_mv_xy+ref_mv_stride][0]*ref_mv_scale + (1<<15))>>16,\n (last_mv[ref_mv_xy+ref_mv_stride][1]*ref_mv_scale + (1<<15))>>16)\n }\n }\n if(c->avctx->last_predictor_count){\n const int count= c->avctx->last_predictor_count;\n const int xstart= FFMAX(0, s->mb_x - count);\n const int ystart= FFMAX(0, s->mb_y - count);\n const int xend= FFMIN(s->mb_width , s->mb_x + count + 1);\n const int yend= FFMIN(s->mb_height, s->mb_y + count + 1);\n int mb_y;\n for(mb_y=ystart; mb_y<yend; mb_y++){\n int mb_x;\n for(mb_x=xstart; mb_x<xend; mb_x++){\n const int xy= mb_x + 1 + (mb_y + 1)*ref_mv_stride;\n int mx= (last_mv[xy][0]*ref_mv_scale + (1<<15))>>16;\n int my= (last_mv[xy][1]*ref_mv_scale + (1<<15))>>16;\n if(mx>xmax || mx<xmin || my>ymax || my<ymin) continue;\n CHECK_MV(mx,my)\n }\n }\n }\n dmin= diamond_search(s, best, dmin, src_index, ref_index, penalty_factor, size, h, flags);\n *mx_ptr= best[0];\n *my_ptr= best[1];\n return dmin;\n}', 'static av_always_inline int diamond_search(MpegEncContext * s, int *best, int dmin,\n int src_index, int ref_index, const int penalty_factor,\n int size, int h, int flags){\n MotionEstContext * const c= &s->me;\n if(c->dia_size==-1)\n return funny_diamond_search(s, best, dmin, src_index, ref_index, penalty_factor, size, h, flags);\n else if(c->dia_size<-1)\n return sab_diamond_search(s, best, dmin, src_index, ref_index, penalty_factor, size, h, flags);\n else if(c->dia_size<2)\n return small_diamond_search(s, best, dmin, src_index, ref_index, penalty_factor, size, h, flags);\n else if(c->dia_size>1024)\n return full_search(s, best, dmin, src_index, ref_index, penalty_factor, size, h, flags);\n else if(c->dia_size>768)\n return umh_search(s, best, dmin, src_index, ref_index, penalty_factor, size, h, flags);\n else if(c->dia_size>512)\n return hex_search(s, best, dmin, src_index, ref_index, penalty_factor, size, h, flags, c->dia_size&0xFF);\n else if(c->dia_size>256)\n return l2s_dia_search(s, best, dmin, src_index, ref_index, penalty_factor, size, h, flags);\n else\n return var_diamond_search(s, best, dmin, src_index, ref_index, penalty_factor, size, h, flags);\n}', 'static int umh_search(MpegEncContext * s, int *best, int dmin,\n int src_index, int ref_index, const int penalty_factor,\n int size, int h, int flags)\n{\n MotionEstContext * const c= &s->me;\n me_cmp_func cmpf, chroma_cmpf;\n LOAD_COMMON\n LOAD_COMMON2\n unsigned map_generation = c->map_generation;\n int x,y,x2,y2, i, j, d;\n const int dia_size= c->dia_size&0xFE;\n static const int hex[16][2]={{-4,-2}, {-4,-1}, {-4, 0}, {-4, 1}, {-4, 2},\n { 4,-2}, { 4,-1}, { 4, 0}, { 4, 1}, { 4, 2},\n {-2, 3}, { 0, 4}, { 2, 3},\n {-2,-3}, { 0,-4}, { 2,-3},};\n cmpf = s->mecc.me_cmp[size];\n chroma_cmpf = s->mecc.me_cmp[size + 1];\n x= best[0];\n y= best[1];\n for(x2=FFMAX(x-dia_size+1, xmin); x2<=FFMIN(x+dia_size-1,xmax); x2+=2){\n CHECK_MV(x2, y);\n }\n for(y2=FFMAX(y-dia_size/2+1, ymin); y2<=FFMIN(y+dia_size/2-1,ymax); y2+=2){\n CHECK_MV(x, y2);\n }\n x= best[0];\n y= best[1];\n for(y2=FFMAX(y-2, ymin); y2<=FFMIN(y+2,ymax); y2++){\n for(x2=FFMAX(x-2, xmin); x2<=FFMIN(x+2,xmax); x2++){\n CHECK_MV(x2, y2);\n }\n }\n for(j=1; j<=dia_size/4; j++){\n for(i=0; i<16; i++){\n CHECK_CLIPPED_MV(x+hex[i][0]*j, y+hex[i][1]*j);\n }\n }\n return hex_search(s, best, dmin, src_index, ref_index, penalty_factor, size, h, flags, 2);\n}', 'static av_always_inline int cmp(MpegEncContext *s, const int x, const int y, const int subx, const int suby,\n const int size, const int h, int ref_index, int src_index,\n me_cmp_func cmp_func, me_cmp_func chroma_cmp_func, const int flags){\n if(av_builtin_constant_p(flags) && av_builtin_constant_p(h) && av_builtin_constant_p(size)\n && av_builtin_constant_p(subx) && av_builtin_constant_p(suby)\n && flags==0 && h==16 && size==0 && subx==0 && suby==0){\n return cmp_simple(s,x,y,ref_index,src_index, cmp_func, chroma_cmp_func);\n }else if(av_builtin_constant_p(subx) && av_builtin_constant_p(suby)\n && subx==0 && suby==0){\n return cmp_fpel_internal(s,x,y,size,h,ref_index,src_index, cmp_func, chroma_cmp_func,flags);\n }else{\n return cmp_internal(s,x,y,subx,suby,size,h,ref_index,src_index, cmp_func, chroma_cmp_func, flags);\n }\n}', 'static int cmp_fpel_internal(MpegEncContext *s, const int x, const int y,\n const int size, const int h, int ref_index, int src_index,\n me_cmp_func cmp_func, me_cmp_func chroma_cmp_func, const int flags){\n if(flags&FLAG_DIRECT){\n return cmp_direct_inline(s,x,y,0,0,size,h,ref_index,src_index, cmp_func, chroma_cmp_func, flags&FLAG_QPEL);\n }else{\n return cmp_inline(s,x,y,0,0,size,h,ref_index,src_index, cmp_func, chroma_cmp_func, 0, flags&FLAG_CHROMA);\n }\n}', 'static av_always_inline int cmp_direct_inline(MpegEncContext *s, const int x, const int y, const int subx, const int suby,\n const int size, const int h, int ref_index, int src_index,\n me_cmp_func cmp_func, me_cmp_func chroma_cmp_func, int qpel){\n MotionEstContext * const c= &s->me;\n const int stride= c->stride;\n const int hx= subx + (x<<(1+qpel));\n const int hy= suby + (y<<(1+qpel));\n uint8_t * const * const ref= c->ref[ref_index];\n uint8_t * const * const src= c->src[src_index];\n int d;\n assert(x >= c->xmin && hx <= c->xmax<<(qpel+1) && y >= c->ymin && hy <= c->ymax<<(qpel+1));\n if(x >= c->xmin && hx <= c->xmax<<(qpel+1) && y >= c->ymin && hy <= c->ymax<<(qpel+1)){\n const int time_pp= s->pp_time;\n const int time_pb= s->pb_time;\n const int mask= 2*qpel+1;\n if(s->mv_type==MV_TYPE_8X8){\n int i;\n for(i=0; i<4; i++){\n int fx = c->direct_basis_mv[i][0] + hx;\n int fy = c->direct_basis_mv[i][1] + hy;\n int bx = hx ? fx - c->co_located_mv[i][0] : c->co_located_mv[i][0]*(time_pb - time_pp)/time_pp + ((i &1)<<(qpel+4));\n int by = hy ? fy - c->co_located_mv[i][1] : c->co_located_mv[i][1]*(time_pb - time_pp)/time_pp + ((i>>1)<<(qpel+4));\n int fxy= (fx&mask) + ((fy&mask)<<(qpel+1));\n int bxy= (bx&mask) + ((by&mask)<<(qpel+1));\n uint8_t *dst= c->temp + 8*(i&1) + 8*stride*(i>>1);\n if(qpel){\n c->qpel_put[1][fxy](dst, ref[0] + (fx>>2) + (fy>>2)*stride, stride);\n c->qpel_avg[1][bxy](dst, ref[8] + (bx>>2) + (by>>2)*stride, stride);\n }else{\n c->hpel_put[1][fxy](dst, ref[0] + (fx>>1) + (fy>>1)*stride, stride, 8);\n c->hpel_avg[1][bxy](dst, ref[8] + (bx>>1) + (by>>1)*stride, stride, 8);\n }\n }\n }else{\n int fx = c->direct_basis_mv[0][0] + hx;\n int fy = c->direct_basis_mv[0][1] + hy;\n int bx = hx ? fx - c->co_located_mv[0][0] : (c->co_located_mv[0][0]*(time_pb - time_pp)/time_pp);\n int by = hy ? fy - c->co_located_mv[0][1] : (c->co_located_mv[0][1]*(time_pb - time_pp)/time_pp);\n int fxy= (fx&mask) + ((fy&mask)<<(qpel+1));\n int bxy= (bx&mask) + ((by&mask)<<(qpel+1));\n if(qpel){\n c->qpel_put[1][fxy](c->temp , ref[0] + (fx>>2) + (fy>>2)*stride , stride);\n c->qpel_put[1][fxy](c->temp + 8 , ref[0] + (fx>>2) + (fy>>2)*stride + 8 , stride);\n c->qpel_put[1][fxy](c->temp + 8*stride, ref[0] + (fx>>2) + (fy>>2)*stride + 8*stride, stride);\n c->qpel_put[1][fxy](c->temp + 8 + 8*stride, ref[0] + (fx>>2) + (fy>>2)*stride + 8 + 8*stride, stride);\n c->qpel_avg[1][bxy](c->temp , ref[8] + (bx>>2) + (by>>2)*stride , stride);\n c->qpel_avg[1][bxy](c->temp + 8 , ref[8] + (bx>>2) + (by>>2)*stride + 8 , stride);\n c->qpel_avg[1][bxy](c->temp + 8*stride, ref[8] + (bx>>2) + (by>>2)*stride + 8*stride, stride);\n c->qpel_avg[1][bxy](c->temp + 8 + 8*stride, ref[8] + (bx>>2) + (by>>2)*stride + 8 + 8*stride, stride);\n }else{\n assert((fx>>1) + 16*s->mb_x >= -16);\n assert((fy>>1) + 16*s->mb_y >= -16);\n assert((fx>>1) + 16*s->mb_x <= s->width);\n assert((fy>>1) + 16*s->mb_y <= s->height);\n assert((bx>>1) + 16*s->mb_x >= -16);\n assert((by>>1) + 16*s->mb_y >= -16);\n assert((bx>>1) + 16*s->mb_x <= s->width);\n assert((by>>1) + 16*s->mb_y <= s->height);\n c->hpel_put[0][fxy](c->temp, ref[0] + (fx>>1) + (fy>>1)*stride, stride, 16);\n c->hpel_avg[0][bxy](c->temp, ref[8] + (bx>>1) + (by>>1)*stride, stride, 16);\n }\n }\n d = cmp_func(s, c->temp, src[0], stride, 16);\n }else\n d= 256*256*256*32;\n return d;\n}'] |
23,121 | 0 | https://github.com/libav/libav/blob/a20639017bfca0490bb1799575714f22bf470b4f/libavcodec/ps.c/#L1039 | static void stereo_processing(PSContext *ps, float (*l)[32][2], float (*r)[32][2], int is34)
{
int e, b, k, n;
float (*H11)[PS_MAX_NUM_ENV+1][PS_MAX_NR_IIDICC] = ps->H11;
float (*H12)[PS_MAX_NUM_ENV+1][PS_MAX_NR_IIDICC] = ps->H12;
float (*H21)[PS_MAX_NUM_ENV+1][PS_MAX_NR_IIDICC] = ps->H21;
float (*H22)[PS_MAX_NUM_ENV+1][PS_MAX_NR_IIDICC] = ps->H22;
int8_t *opd_hist = ps->opd_hist;
int8_t *ipd_hist = ps->ipd_hist;
int8_t iid_mapped_buf[PS_MAX_NUM_ENV][PS_MAX_NR_IIDICC];
int8_t icc_mapped_buf[PS_MAX_NUM_ENV][PS_MAX_NR_IIDICC];
int8_t ipd_mapped_buf[PS_MAX_NUM_ENV][PS_MAX_NR_IIDICC];
int8_t opd_mapped_buf[PS_MAX_NUM_ENV][PS_MAX_NR_IIDICC];
int8_t (*iid_mapped)[PS_MAX_NR_IIDICC] = iid_mapped_buf;
int8_t (*icc_mapped)[PS_MAX_NR_IIDICC] = icc_mapped_buf;
int8_t (*ipd_mapped)[PS_MAX_NR_IIDICC] = ipd_mapped_buf;
int8_t (*opd_mapped)[PS_MAX_NR_IIDICC] = opd_mapped_buf;
const int8_t *k_to_i = is34 ? k_to_i_34 : k_to_i_20;
const float (*H_LUT)[8][4] = (PS_BASELINE || ps->icc_mode < 3) ? HA : HB;
for (b = 0; b < PS_MAX_NR_IIDICC; b++) {
H11[0][0][b] = H11[0][ps->num_env_old][b];
H12[0][0][b] = H12[0][ps->num_env_old][b];
H21[0][0][b] = H21[0][ps->num_env_old][b];
H22[0][0][b] = H22[0][ps->num_env_old][b];
H11[1][0][b] = H11[1][ps->num_env_old][b];
H12[1][0][b] = H12[1][ps->num_env_old][b];
H21[1][0][b] = H21[1][ps->num_env_old][b];
H22[1][0][b] = H22[1][ps->num_env_old][b];
}
if (is34) {
remap34(&iid_mapped, ps->iid_par, ps->nr_iid_par, ps->num_env, 1);
remap34(&icc_mapped, ps->icc_par, ps->nr_icc_par, ps->num_env, 1);
if (ps->enable_ipdopd) {
remap34(&ipd_mapped, ps->ipd_par, ps->nr_ipdopd_par, ps->num_env, 0);
remap34(&opd_mapped, ps->opd_par, ps->nr_ipdopd_par, ps->num_env, 0);
}
if (!ps->is34bands_old) {
map_val_20_to_34(H11[0][0]);
map_val_20_to_34(H11[1][0]);
map_val_20_to_34(H12[0][0]);
map_val_20_to_34(H12[1][0]);
map_val_20_to_34(H21[0][0]);
map_val_20_to_34(H21[1][0]);
map_val_20_to_34(H22[0][0]);
map_val_20_to_34(H22[1][0]);
ipdopd_reset(ipd_hist, opd_hist);
}
} else {
remap20(&iid_mapped, ps->iid_par, ps->nr_iid_par, ps->num_env, 1);
remap20(&icc_mapped, ps->icc_par, ps->nr_icc_par, ps->num_env, 1);
if (ps->enable_ipdopd) {
remap20(&ipd_mapped, ps->ipd_par, ps->nr_ipdopd_par, ps->num_env, 0);
remap20(&opd_mapped, ps->opd_par, ps->nr_ipdopd_par, ps->num_env, 0);
}
if (ps->is34bands_old) {
map_val_34_to_20(H11[0][0]);
map_val_34_to_20(H11[1][0]);
map_val_34_to_20(H12[0][0]);
map_val_34_to_20(H12[1][0]);
map_val_34_to_20(H21[0][0]);
map_val_34_to_20(H21[1][0]);
map_val_34_to_20(H22[0][0]);
map_val_34_to_20(H22[1][0]);
ipdopd_reset(ipd_hist, opd_hist);
}
}
for (e = 0; e < ps->num_env; e++) {
for (b = 0; b < NR_PAR_BANDS[is34]; b++) {
float h11, h12, h21, h22;
h11 = H_LUT[iid_mapped[e][b] + 7 + 23 * ps->iid_quant][icc_mapped[e][b]][0];
h12 = H_LUT[iid_mapped[e][b] + 7 + 23 * ps->iid_quant][icc_mapped[e][b]][1];
h21 = H_LUT[iid_mapped[e][b] + 7 + 23 * ps->iid_quant][icc_mapped[e][b]][2];
h22 = H_LUT[iid_mapped[e][b] + 7 + 23 * ps->iid_quant][icc_mapped[e][b]][3];
if (!PS_BASELINE && ps->enable_ipdopd && b < ps->nr_ipdopd_par) {
float h11i, h12i, h21i, h22i;
float ipd_adj_re, ipd_adj_im;
int opd_idx = opd_hist[b] * 8 + opd_mapped[e][b];
int ipd_idx = ipd_hist[b] * 8 + ipd_mapped[e][b];
float opd_re = pd_re_smooth[opd_idx];
float opd_im = pd_im_smooth[opd_idx];
float ipd_re = pd_re_smooth[ipd_idx];
float ipd_im = pd_im_smooth[ipd_idx];
opd_hist[b] = opd_idx & 0x3F;
ipd_hist[b] = ipd_idx & 0x3F;
ipd_adj_re = opd_re*ipd_re + opd_im*ipd_im;
ipd_adj_im = opd_im*ipd_re - opd_re*ipd_im;
h11i = h11 * opd_im;
h11 = h11 * opd_re;
h12i = h12 * ipd_adj_im;
h12 = h12 * ipd_adj_re;
h21i = h21 * opd_im;
h21 = h21 * opd_re;
h22i = h22 * ipd_adj_im;
h22 = h22 * ipd_adj_re;
H11[1][e+1][b] = h11i;
H12[1][e+1][b] = h12i;
H21[1][e+1][b] = h21i;
H22[1][e+1][b] = h22i;
}
H11[0][e+1][b] = h11;
H12[0][e+1][b] = h12;
H21[0][e+1][b] = h21;
H22[0][e+1][b] = h22;
}
for (k = 0; k < NR_BANDS[is34]; k++) {
float h11r, h12r, h21r, h22r;
float h11i, h12i, h21i, h22i;
float h11r_step, h12r_step, h21r_step, h22r_step;
float h11i_step, h12i_step, h21i_step, h22i_step;
int start = ps->border_position[e];
int stop = ps->border_position[e+1];
float width = 1.f / (stop - start);
b = k_to_i[k];
h11r = H11[0][e][b];
h12r = H12[0][e][b];
h21r = H21[0][e][b];
h22r = H22[0][e][b];
if (!PS_BASELINE && ps->enable_ipdopd) {
if ((is34 && k <= 13 && k >= 9) || (!is34 && k <= 1)) {
h11i = -H11[1][e][b];
h12i = -H12[1][e][b];
h21i = -H21[1][e][b];
h22i = -H22[1][e][b];
} else {
h11i = H11[1][e][b];
h12i = H12[1][e][b];
h21i = H21[1][e][b];
h22i = H22[1][e][b];
}
}
h11r_step = (H11[0][e+1][b] - h11r) * width;
h12r_step = (H12[0][e+1][b] - h12r) * width;
h21r_step = (H21[0][e+1][b] - h21r) * width;
h22r_step = (H22[0][e+1][b] - h22r) * width;
if (!PS_BASELINE && ps->enable_ipdopd) {
h11i_step = (H11[1][e+1][b] - h11i) * width;
h12i_step = (H12[1][e+1][b] - h12i) * width;
h21i_step = (H21[1][e+1][b] - h21i) * width;
h22i_step = (H22[1][e+1][b] - h22i) * width;
}
for (n = start + 1; n <= stop; n++) {
float l_re = l[k][n][0];
float l_im = l[k][n][1];
float r_re = r[k][n][0];
float r_im = r[k][n][1];
h11r += h11r_step;
h12r += h12r_step;
h21r += h21r_step;
h22r += h22r_step;
if (!PS_BASELINE && ps->enable_ipdopd) {
h11i += h11i_step;
h12i += h12i_step;
h21i += h21i_step;
h22i += h22i_step;
l[k][n][0] = h11r*l_re + h21r*r_re - h11i*l_im - h21i*r_im;
l[k][n][1] = h11r*l_im + h21r*r_im + h11i*l_re + h21i*r_re;
r[k][n][0] = h12r*l_re + h22r*r_re - h12i*l_im - h22i*r_im;
r[k][n][1] = h12r*l_im + h22r*r_im + h12i*l_re + h22i*r_re;
} else {
l[k][n][0] = h11r*l_re + h21r*r_re;
l[k][n][1] = h11r*l_im + h21r*r_im;
r[k][n][0] = h12r*l_re + h22r*r_re;
r[k][n][1] = h12r*l_im + h22r*r_im;
}
}
}
}
} | ['static void stereo_processing(PSContext *ps, float (*l)[32][2], float (*r)[32][2], int is34)\n{\n int e, b, k, n;\n float (*H11)[PS_MAX_NUM_ENV+1][PS_MAX_NR_IIDICC] = ps->H11;\n float (*H12)[PS_MAX_NUM_ENV+1][PS_MAX_NR_IIDICC] = ps->H12;\n float (*H21)[PS_MAX_NUM_ENV+1][PS_MAX_NR_IIDICC] = ps->H21;\n float (*H22)[PS_MAX_NUM_ENV+1][PS_MAX_NR_IIDICC] = ps->H22;\n int8_t *opd_hist = ps->opd_hist;\n int8_t *ipd_hist = ps->ipd_hist;\n int8_t iid_mapped_buf[PS_MAX_NUM_ENV][PS_MAX_NR_IIDICC];\n int8_t icc_mapped_buf[PS_MAX_NUM_ENV][PS_MAX_NR_IIDICC];\n int8_t ipd_mapped_buf[PS_MAX_NUM_ENV][PS_MAX_NR_IIDICC];\n int8_t opd_mapped_buf[PS_MAX_NUM_ENV][PS_MAX_NR_IIDICC];\n int8_t (*iid_mapped)[PS_MAX_NR_IIDICC] = iid_mapped_buf;\n int8_t (*icc_mapped)[PS_MAX_NR_IIDICC] = icc_mapped_buf;\n int8_t (*ipd_mapped)[PS_MAX_NR_IIDICC] = ipd_mapped_buf;\n int8_t (*opd_mapped)[PS_MAX_NR_IIDICC] = opd_mapped_buf;\n const int8_t *k_to_i = is34 ? k_to_i_34 : k_to_i_20;\n const float (*H_LUT)[8][4] = (PS_BASELINE || ps->icc_mode < 3) ? HA : HB;\n for (b = 0; b < PS_MAX_NR_IIDICC; b++) {\n H11[0][0][b] = H11[0][ps->num_env_old][b];\n H12[0][0][b] = H12[0][ps->num_env_old][b];\n H21[0][0][b] = H21[0][ps->num_env_old][b];\n H22[0][0][b] = H22[0][ps->num_env_old][b];\n H11[1][0][b] = H11[1][ps->num_env_old][b];\n H12[1][0][b] = H12[1][ps->num_env_old][b];\n H21[1][0][b] = H21[1][ps->num_env_old][b];\n H22[1][0][b] = H22[1][ps->num_env_old][b];\n }\n if (is34) {\n remap34(&iid_mapped, ps->iid_par, ps->nr_iid_par, ps->num_env, 1);\n remap34(&icc_mapped, ps->icc_par, ps->nr_icc_par, ps->num_env, 1);\n if (ps->enable_ipdopd) {\n remap34(&ipd_mapped, ps->ipd_par, ps->nr_ipdopd_par, ps->num_env, 0);\n remap34(&opd_mapped, ps->opd_par, ps->nr_ipdopd_par, ps->num_env, 0);\n }\n if (!ps->is34bands_old) {\n map_val_20_to_34(H11[0][0]);\n map_val_20_to_34(H11[1][0]);\n map_val_20_to_34(H12[0][0]);\n map_val_20_to_34(H12[1][0]);\n map_val_20_to_34(H21[0][0]);\n map_val_20_to_34(H21[1][0]);\n map_val_20_to_34(H22[0][0]);\n map_val_20_to_34(H22[1][0]);\n ipdopd_reset(ipd_hist, opd_hist);\n }\n } else {\n remap20(&iid_mapped, ps->iid_par, ps->nr_iid_par, ps->num_env, 1);\n remap20(&icc_mapped, ps->icc_par, ps->nr_icc_par, ps->num_env, 1);\n if (ps->enable_ipdopd) {\n remap20(&ipd_mapped, ps->ipd_par, ps->nr_ipdopd_par, ps->num_env, 0);\n remap20(&opd_mapped, ps->opd_par, ps->nr_ipdopd_par, ps->num_env, 0);\n }\n if (ps->is34bands_old) {\n map_val_34_to_20(H11[0][0]);\n map_val_34_to_20(H11[1][0]);\n map_val_34_to_20(H12[0][0]);\n map_val_34_to_20(H12[1][0]);\n map_val_34_to_20(H21[0][0]);\n map_val_34_to_20(H21[1][0]);\n map_val_34_to_20(H22[0][0]);\n map_val_34_to_20(H22[1][0]);\n ipdopd_reset(ipd_hist, opd_hist);\n }\n }\n for (e = 0; e < ps->num_env; e++) {\n for (b = 0; b < NR_PAR_BANDS[is34]; b++) {\n float h11, h12, h21, h22;\n h11 = H_LUT[iid_mapped[e][b] + 7 + 23 * ps->iid_quant][icc_mapped[e][b]][0];\n h12 = H_LUT[iid_mapped[e][b] + 7 + 23 * ps->iid_quant][icc_mapped[e][b]][1];\n h21 = H_LUT[iid_mapped[e][b] + 7 + 23 * ps->iid_quant][icc_mapped[e][b]][2];\n h22 = H_LUT[iid_mapped[e][b] + 7 + 23 * ps->iid_quant][icc_mapped[e][b]][3];\n if (!PS_BASELINE && ps->enable_ipdopd && b < ps->nr_ipdopd_par) {\n float h11i, h12i, h21i, h22i;\n float ipd_adj_re, ipd_adj_im;\n int opd_idx = opd_hist[b] * 8 + opd_mapped[e][b];\n int ipd_idx = ipd_hist[b] * 8 + ipd_mapped[e][b];\n float opd_re = pd_re_smooth[opd_idx];\n float opd_im = pd_im_smooth[opd_idx];\n float ipd_re = pd_re_smooth[ipd_idx];\n float ipd_im = pd_im_smooth[ipd_idx];\n opd_hist[b] = opd_idx & 0x3F;\n ipd_hist[b] = ipd_idx & 0x3F;\n ipd_adj_re = opd_re*ipd_re + opd_im*ipd_im;\n ipd_adj_im = opd_im*ipd_re - opd_re*ipd_im;\n h11i = h11 * opd_im;\n h11 = h11 * opd_re;\n h12i = h12 * ipd_adj_im;\n h12 = h12 * ipd_adj_re;\n h21i = h21 * opd_im;\n h21 = h21 * opd_re;\n h22i = h22 * ipd_adj_im;\n h22 = h22 * ipd_adj_re;\n H11[1][e+1][b] = h11i;\n H12[1][e+1][b] = h12i;\n H21[1][e+1][b] = h21i;\n H22[1][e+1][b] = h22i;\n }\n H11[0][e+1][b] = h11;\n H12[0][e+1][b] = h12;\n H21[0][e+1][b] = h21;\n H22[0][e+1][b] = h22;\n }\n for (k = 0; k < NR_BANDS[is34]; k++) {\n float h11r, h12r, h21r, h22r;\n float h11i, h12i, h21i, h22i;\n float h11r_step, h12r_step, h21r_step, h22r_step;\n float h11i_step, h12i_step, h21i_step, h22i_step;\n int start = ps->border_position[e];\n int stop = ps->border_position[e+1];\n float width = 1.f / (stop - start);\n b = k_to_i[k];\n h11r = H11[0][e][b];\n h12r = H12[0][e][b];\n h21r = H21[0][e][b];\n h22r = H22[0][e][b];\n if (!PS_BASELINE && ps->enable_ipdopd) {\n if ((is34 && k <= 13 && k >= 9) || (!is34 && k <= 1)) {\n h11i = -H11[1][e][b];\n h12i = -H12[1][e][b];\n h21i = -H21[1][e][b];\n h22i = -H22[1][e][b];\n } else {\n h11i = H11[1][e][b];\n h12i = H12[1][e][b];\n h21i = H21[1][e][b];\n h22i = H22[1][e][b];\n }\n }\n h11r_step = (H11[0][e+1][b] - h11r) * width;\n h12r_step = (H12[0][e+1][b] - h12r) * width;\n h21r_step = (H21[0][e+1][b] - h21r) * width;\n h22r_step = (H22[0][e+1][b] - h22r) * width;\n if (!PS_BASELINE && ps->enable_ipdopd) {\n h11i_step = (H11[1][e+1][b] - h11i) * width;\n h12i_step = (H12[1][e+1][b] - h12i) * width;\n h21i_step = (H21[1][e+1][b] - h21i) * width;\n h22i_step = (H22[1][e+1][b] - h22i) * width;\n }\n for (n = start + 1; n <= stop; n++) {\n float l_re = l[k][n][0];\n float l_im = l[k][n][1];\n float r_re = r[k][n][0];\n float r_im = r[k][n][1];\n h11r += h11r_step;\n h12r += h12r_step;\n h21r += h21r_step;\n h22r += h22r_step;\n if (!PS_BASELINE && ps->enable_ipdopd) {\n h11i += h11i_step;\n h12i += h12i_step;\n h21i += h21i_step;\n h22i += h22i_step;\n l[k][n][0] = h11r*l_re + h21r*r_re - h11i*l_im - h21i*r_im;\n l[k][n][1] = h11r*l_im + h21r*r_im + h11i*l_re + h21i*r_re;\n r[k][n][0] = h12r*l_re + h22r*r_re - h12i*l_im - h22i*r_im;\n r[k][n][1] = h12r*l_im + h22r*r_im + h12i*l_re + h22i*r_re;\n } else {\n l[k][n][0] = h11r*l_re + h21r*r_re;\n l[k][n][1] = h11r*l_im + h21r*r_im;\n r[k][n][0] = h12r*l_re + h22r*r_re;\n r[k][n][1] = h12r*l_im + h22r*r_im;\n }\n }\n }\n }\n}'] |
23,122 | 0 | https://github.com/openssl/openssl/blob/024d681e69cc1ea7177a7eae9aeb1947412950ed/ssl/record/rec_layer_s3.c/#L918 | int ssl3_write_pending(SSL *s, int type, const unsigned char *buf, size_t len,
size_t *written)
{
int i;
SSL3_BUFFER *wb = s->rlayer.wbuf;
size_t currbuf = 0;
size_t tmpwrit = 0;
if ((s->rlayer.wpend_tot > len)
|| ((s->rlayer.wpend_buf != buf) &&
!(s->mode & SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER))
|| (s->rlayer.wpend_type != type)) {
SSLerr(SSL_F_SSL3_WRITE_PENDING, SSL_R_BAD_WRITE_RETRY);
return -1;
}
for (;;) {
if (SSL3_BUFFER_get_left(&wb[currbuf]) == 0
&& currbuf < s->rlayer.numwpipes - 1) {
currbuf++;
continue;
}
clear_sys_error();
if (s->wbio != NULL) {
s->rwstate = SSL_WRITING;
i = BIO_write(s->wbio, (char *)
&(SSL3_BUFFER_get_buf(&wb[currbuf])
[SSL3_BUFFER_get_offset(&wb[currbuf])]),
(unsigned int)SSL3_BUFFER_get_left(&wb[currbuf]));
if (i >= 0)
tmpwrit = i;
} else {
SSLerr(SSL_F_SSL3_WRITE_PENDING, SSL_R_BIO_NOT_SET);
i = -1;
}
if (i > 0 && tmpwrit == SSL3_BUFFER_get_left(&wb[currbuf])) {
SSL3_BUFFER_set_left(&wb[currbuf], 0);
SSL3_BUFFER_add_offset(&wb[currbuf], tmpwrit);
if (currbuf + 1 < s->rlayer.numwpipes)
continue;
s->rwstate = SSL_NOTHING;
*written = s->rlayer.wpend_ret;
return 1;
} else if (i <= 0) {
if (SSL_IS_DTLS(s)) {
SSL3_BUFFER_set_left(&wb[currbuf], 0);
}
return (i);
}
SSL3_BUFFER_add_offset(&wb[currbuf], tmpwrit);
SSL3_BUFFER_sub_left(&wb[currbuf], tmpwrit);
}
} | ['int ssl3_write_bytes(SSL *s, int type, const void *buf_, size_t len,\n size_t *written)\n{\n const unsigned char *buf = buf_;\n size_t tot;\n size_t n, split_send_fragment, maxpipes;\n#if !defined(OPENSSL_NO_MULTIBLOCK) && EVP_CIPH_FLAG_TLS1_1_MULTIBLOCK\n size_t max_send_fragment, nw;\n#endif\n SSL3_BUFFER *wb = &s->rlayer.wbuf[0];\n int i;\n size_t tmpwrit;\n s->rwstate = SSL_NOTHING;\n tot = s->rlayer.wnum;\n if (len < s->rlayer.wnum) {\n SSLerr(SSL_F_SSL3_WRITE_BYTES, SSL_R_BAD_LENGTH);\n return -1;\n }\n s->rlayer.wnum = 0;\n if (SSL_in_init(s) && !ossl_statem_get_in_handshake(s)) {\n i = s->handshake_func(s);\n if (i < 0)\n return i;\n if (i == 0) {\n SSLerr(SSL_F_SSL3_WRITE_BYTES, SSL_R_SSL_HANDSHAKE_FAILURE);\n return -1;\n }\n }\n if (wb->left != 0) {\n i = ssl3_write_pending(s, type, &buf[tot], s->rlayer.wpend_tot,\n &tmpwrit);\n if (i <= 0) {\n s->rlayer.wnum = tot;\n return i;\n }\n tot += tmpwrit;\n }\n#if !defined(OPENSSL_NO_MULTIBLOCK) && EVP_CIPH_FLAG_TLS1_1_MULTIBLOCK\n if (type == SSL3_RT_APPLICATION_DATA &&\n len >= 4 * (max_send_fragment = s->max_send_fragment) &&\n s->compress == NULL && s->msg_callback == NULL &&\n !SSL_USE_ETM(s) && SSL_USE_EXPLICIT_IV(s) &&\n EVP_CIPHER_flags(EVP_CIPHER_CTX_cipher(s->enc_write_ctx)) &\n EVP_CIPH_FLAG_TLS1_1_MULTIBLOCK) {\n unsigned char aad[13];\n EVP_CTRL_TLS1_1_MULTIBLOCK_PARAM mb_param;\n size_t packlen;\n int packleni;\n if ((max_send_fragment & 0xfff) == 0)\n max_send_fragment -= 512;\n if (tot == 0 || wb->buf == NULL) {\n ssl3_release_write_buffer(s);\n packlen = EVP_CIPHER_CTX_ctrl(s->enc_write_ctx,\n EVP_CTRL_TLS1_1_MULTIBLOCK_MAX_BUFSIZE,\n (int)max_send_fragment, NULL);\n if (len >= 8 * max_send_fragment)\n packlen *= 8;\n else\n packlen *= 4;\n if (!ssl3_setup_write_buffer(s, 1, packlen)) {\n SSLerr(SSL_F_SSL3_WRITE_BYTES, ERR_R_MALLOC_FAILURE);\n return -1;\n }\n } else if (tot == len) {\n ssl3_release_write_buffer(s);\n *written = tot;\n return 1;\n }\n n = (len - tot);\n for (;;) {\n if (n < 4 * max_send_fragment) {\n ssl3_release_write_buffer(s);\n break;\n }\n if (s->s3->alert_dispatch) {\n i = s->method->ssl_dispatch_alert(s);\n if (i <= 0) {\n s->rlayer.wnum = tot;\n return i;\n }\n }\n if (n >= 8 * max_send_fragment)\n nw = max_send_fragment * (mb_param.interleave = 8);\n else\n nw = max_send_fragment * (mb_param.interleave = 4);\n memcpy(aad, s->rlayer.write_sequence, 8);\n aad[8] = type;\n aad[9] = (unsigned char)(s->version >> 8);\n aad[10] = (unsigned char)(s->version);\n aad[11] = 0;\n aad[12] = 0;\n mb_param.out = NULL;\n mb_param.inp = aad;\n mb_param.len = nw;\n packleni = EVP_CIPHER_CTX_ctrl(s->enc_write_ctx,\n EVP_CTRL_TLS1_1_MULTIBLOCK_AAD,\n sizeof(mb_param), &mb_param);\n packlen = (size_t)packleni;\n if (packleni <= 0 || packlen > wb->len) {\n ssl3_release_write_buffer(s);\n break;\n }\n mb_param.out = wb->buf;\n mb_param.inp = &buf[tot];\n mb_param.len = nw;\n if (EVP_CIPHER_CTX_ctrl(s->enc_write_ctx,\n EVP_CTRL_TLS1_1_MULTIBLOCK_ENCRYPT,\n sizeof(mb_param), &mb_param) <= 0)\n return -1;\n s->rlayer.write_sequence[7] += mb_param.interleave;\n if (s->rlayer.write_sequence[7] < mb_param.interleave) {\n int j = 6;\n while (j >= 0 && (++s->rlayer.write_sequence[j--]) == 0) ;\n }\n wb->offset = 0;\n wb->left = packlen;\n s->rlayer.wpend_tot = nw;\n s->rlayer.wpend_buf = &buf[tot];\n s->rlayer.wpend_type = type;\n s->rlayer.wpend_ret = nw;\n i = ssl3_write_pending(s, type, &buf[tot], nw, &tmpwrit);\n if (i <= 0) {\n if (i < 0 && (!s->wbio || !BIO_should_retry(s->wbio))) {\n ssl3_release_write_buffer(s);\n }\n s->rlayer.wnum = tot;\n return i;\n }\n if (tmpwrit == n) {\n ssl3_release_write_buffer(s);\n *written = tot + tmpwrit;\n return 1;\n }\n n -= tmpwrit;\n tot += tmpwrit;\n }\n } else\n#endif\n if (tot == len) {\n if (s->mode & SSL_MODE_RELEASE_BUFFERS && !SSL_IS_DTLS(s))\n ssl3_release_write_buffer(s);\n *written = tot;\n return 1;\n }\n n = (len - tot);\n split_send_fragment = s->split_send_fragment;\n maxpipes = s->max_pipelines;\n if (maxpipes > SSL_MAX_PIPELINES) {\n SSLerr(SSL_F_SSL3_WRITE_BYTES, ERR_R_INTERNAL_ERROR);\n return -1;\n }\n if (maxpipes == 0\n || s->enc_write_ctx == NULL\n || !(EVP_CIPHER_flags(EVP_CIPHER_CTX_cipher(s->enc_write_ctx))\n & EVP_CIPH_FLAG_PIPELINE)\n || !SSL_USE_EXPLICIT_IV(s))\n maxpipes = 1;\n if (s->max_send_fragment == 0 || split_send_fragment > s->max_send_fragment\n || split_send_fragment == 0) {\n SSLerr(SSL_F_SSL3_WRITE_BYTES, ERR_R_INTERNAL_ERROR);\n return -1;\n }\n for (;;) {\n size_t pipelens[SSL_MAX_PIPELINES], tmppipelen, remain;\n size_t numpipes, j;\n if (n == 0)\n numpipes = 1;\n else\n numpipes = ((n - 1) / split_send_fragment) + 1;\n if (numpipes > maxpipes)\n numpipes = maxpipes;\n if (n / numpipes >= s->max_send_fragment) {\n for (j = 0; j < numpipes; j++) {\n pipelens[j] = s->max_send_fragment;\n }\n } else {\n tmppipelen = n / numpipes;\n remain = n % numpipes;\n for (j = 0; j < numpipes; j++) {\n pipelens[j] = tmppipelen;\n if (j < remain)\n pipelens[j]++;\n }\n }\n i = do_ssl3_write(s, type, &(buf[tot]), pipelens, numpipes, 0,\n &tmpwrit);\n if (i <= 0) {\n s->rlayer.wnum = tot;\n return i;\n }\n if (tmpwrit == n ||\n (type == SSL3_RT_APPLICATION_DATA &&\n (s->mode & SSL_MODE_ENABLE_PARTIAL_WRITE))) {\n s->s3->empty_fragment_done = 0;\n if ((i == (int)n) && s->mode & SSL_MODE_RELEASE_BUFFERS &&\n !SSL_IS_DTLS(s))\n ssl3_release_write_buffer(s);\n *written = tot + tmpwrit;\n return 1;\n }\n n -= tmpwrit;\n tot += tmpwrit;\n }\n}', 'int do_ssl3_write(SSL *s, int type, const unsigned char *buf,\n size_t *pipelens, size_t numpipes,\n int create_empty_fragment, size_t *written)\n{\n unsigned char *outbuf[SSL_MAX_PIPELINES], *plen[SSL_MAX_PIPELINES];\n SSL3_RECORD wr[SSL_MAX_PIPELINES];\n int i, mac_size, clear = 0;\n size_t prefix_len = 0;\n int eivlen;\n size_t align = 0;\n SSL3_BUFFER *wb;\n SSL_SESSION *sess;\n size_t totlen = 0;\n size_t j;\n for (j = 0; j < numpipes; j++)\n totlen += pipelens[j];\n if (RECORD_LAYER_write_pending(&s->rlayer))\n return ssl3_write_pending(s, type, buf, totlen, written);\n if (s->s3->alert_dispatch) {\n i = s->method->ssl_dispatch_alert(s);\n if (i <= 0)\n return (i);\n }\n if (s->rlayer.numwpipes < numpipes)\n if (!ssl3_setup_write_buffer(s, numpipes, 0))\n return -1;\n if (totlen == 0 && !create_empty_fragment)\n return 0;\n sess = s->session;\n if ((sess == NULL) ||\n (s->enc_write_ctx == NULL) || (EVP_MD_CTX_md(s->write_hash) == NULL)) {\n clear = s->enc_write_ctx ? 0 : 1;\n mac_size = 0;\n } else {\n mac_size = EVP_MD_CTX_size(s->write_hash);\n if (mac_size < 0)\n goto err;\n }\n if (!clear && !create_empty_fragment && !s->s3->empty_fragment_done) {\n if (s->s3->need_empty_fragments && type == SSL3_RT_APPLICATION_DATA) {\n size_t tmppipelen = 0;\n int ret;\n ret = do_ssl3_write(s, type, buf, &tmppipelen, 1, 1, &prefix_len);\n if (ret <= 0)\n goto err;\n if (prefix_len >\n (SSL3_RT_HEADER_LENGTH + SSL3_RT_SEND_MAX_ENCRYPTED_OVERHEAD)) {\n SSLerr(SSL_F_DO_SSL3_WRITE, ERR_R_INTERNAL_ERROR);\n goto err;\n }\n }\n s->s3->empty_fragment_done = 1;\n }\n if (create_empty_fragment) {\n wb = &s->rlayer.wbuf[0];\n#if defined(SSL3_ALIGN_PAYLOAD) && SSL3_ALIGN_PAYLOAD!=0\n align = (size_t)SSL3_BUFFER_get_buf(wb) + 2 * SSL3_RT_HEADER_LENGTH;\n align = SSL3_ALIGN_PAYLOAD - 1 - ((align - 1) % SSL3_ALIGN_PAYLOAD);\n#endif\n outbuf[0] = SSL3_BUFFER_get_buf(wb) + align;\n SSL3_BUFFER_set_offset(wb, align);\n } else if (prefix_len) {\n wb = &s->rlayer.wbuf[0];\n outbuf[0] = SSL3_BUFFER_get_buf(wb) + SSL3_BUFFER_get_offset(wb)\n + prefix_len;\n } else {\n for (j = 0; j < numpipes; j++) {\n wb = &s->rlayer.wbuf[j];\n#if defined(SSL3_ALIGN_PAYLOAD) && SSL3_ALIGN_PAYLOAD!=0\n align = (size_t)SSL3_BUFFER_get_buf(wb) + SSL3_RT_HEADER_LENGTH;\n align = SSL3_ALIGN_PAYLOAD - 1 - ((align - 1) % SSL3_ALIGN_PAYLOAD);\n#endif\n outbuf[j] = SSL3_BUFFER_get_buf(wb) + align;\n SSL3_BUFFER_set_offset(wb, align);\n }\n }\n if (s->enc_write_ctx && SSL_USE_EXPLICIT_IV(s)) {\n int mode = EVP_CIPHER_CTX_mode(s->enc_write_ctx);\n if (mode == EVP_CIPH_CBC_MODE) {\n eivlen = EVP_CIPHER_CTX_iv_length(s->enc_write_ctx);\n if (eivlen <= 1)\n eivlen = 0;\n }\n else if (mode == EVP_CIPH_GCM_MODE)\n eivlen = EVP_GCM_TLS_EXPLICIT_IV_LEN;\n else if (mode == EVP_CIPH_CCM_MODE)\n eivlen = EVP_CCM_TLS_EXPLICIT_IV_LEN;\n else\n eivlen = 0;\n } else\n eivlen = 0;\n totlen = 0;\n memset(wr, 0, sizeof wr);\n for (j = 0; j < numpipes; j++) {\n *(outbuf[j]++) = type & 0xff;\n SSL3_RECORD_set_type(&wr[j], type);\n *(outbuf[j]++) = (s->version >> 8);\n if (SSL_get_state(s) == TLS_ST_CW_CLNT_HELLO\n && !s->renegotiate && TLS1_get_version(s) > TLS1_VERSION)\n *(outbuf[j]++) = 0x1;\n else\n *(outbuf[j]++) = s->version & 0xff;\n plen[j] = outbuf[j];\n outbuf[j] += 2;\n SSL3_RECORD_set_data(&wr[j], outbuf[j] + eivlen);\n SSL3_RECORD_set_length(&wr[j], pipelens[j]);\n SSL3_RECORD_set_input(&wr[j], (unsigned char *)&buf[totlen]);\n totlen += pipelens[j];\n if (s->compress != NULL) {\n if (!ssl3_do_compress(s, &wr[j])) {\n SSLerr(SSL_F_DO_SSL3_WRITE, SSL_R_COMPRESSION_FAILURE);\n goto err;\n }\n } else {\n memcpy(wr[j].data, wr[j].input, wr[j].length);\n SSL3_RECORD_reset_input(&wr[j]);\n }\n if (!SSL_USE_ETM(s) && mac_size != 0) {\n if (!s->method->ssl3_enc->mac(s, &wr[j],\n &(outbuf[j][wr[j].length + eivlen]),\n 1))\n goto err;\n SSL3_RECORD_add_length(&wr[j], mac_size);\n }\n SSL3_RECORD_set_data(&wr[j], outbuf[j]);\n SSL3_RECORD_reset_input(&wr[j]);\n if (eivlen) {\n SSL3_RECORD_add_length(&wr[j], eivlen);\n }\n }\n if (s->method->ssl3_enc->enc(s, wr, numpipes, 1) < 1)\n goto err;\n for (j = 0; j < numpipes; j++) {\n if (SSL_USE_ETM(s) && mac_size != 0) {\n if (!s->method->ssl3_enc->mac(s, &wr[j],\n outbuf[j] + wr[j].length, 1))\n goto err;\n SSL3_RECORD_add_length(&wr[j], mac_size);\n }\n s2n(SSL3_RECORD_get_length(&wr[j]), plen[j]);\n if (s->msg_callback)\n s->msg_callback(1, 0, SSL3_RT_HEADER, plen[j] - 5, 5, s,\n s->msg_callback_arg);\n SSL3_RECORD_set_type(&wr[j], type);\n SSL3_RECORD_add_length(&wr[j], SSL3_RT_HEADER_LENGTH);\n if (create_empty_fragment) {\n if (j > 0) {\n SSLerr(SSL_F_DO_SSL3_WRITE, ERR_R_INTERNAL_ERROR);\n goto err;\n }\n *written = SSL3_RECORD_get_length(wr);\n return 1;\n }\n SSL3_BUFFER_set_left(&s->rlayer.wbuf[j],\n prefix_len + SSL3_RECORD_get_length(&wr[j]));\n }\n s->rlayer.wpend_tot = totlen;\n s->rlayer.wpend_buf = buf;\n s->rlayer.wpend_type = type;\n s->rlayer.wpend_ret = totlen;\n return ssl3_write_pending(s, type, buf, totlen, written);\n err:\n return -1;\n}', 'int RECORD_LAYER_write_pending(const RECORD_LAYER *rl)\n{\n return (rl->numwpipes > 0)\n && SSL3_BUFFER_get_left(&rl->wbuf[rl->numwpipes - 1]) != 0;\n}', 'int ssl3_write_pending(SSL *s, int type, const unsigned char *buf, size_t len,\n size_t *written)\n{\n int i;\n SSL3_BUFFER *wb = s->rlayer.wbuf;\n size_t currbuf = 0;\n size_t tmpwrit = 0;\n if ((s->rlayer.wpend_tot > len)\n || ((s->rlayer.wpend_buf != buf) &&\n !(s->mode & SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER))\n || (s->rlayer.wpend_type != type)) {\n SSLerr(SSL_F_SSL3_WRITE_PENDING, SSL_R_BAD_WRITE_RETRY);\n return -1;\n }\n for (;;) {\n if (SSL3_BUFFER_get_left(&wb[currbuf]) == 0\n && currbuf < s->rlayer.numwpipes - 1) {\n currbuf++;\n continue;\n }\n clear_sys_error();\n if (s->wbio != NULL) {\n s->rwstate = SSL_WRITING;\n i = BIO_write(s->wbio, (char *)\n &(SSL3_BUFFER_get_buf(&wb[currbuf])\n [SSL3_BUFFER_get_offset(&wb[currbuf])]),\n (unsigned int)SSL3_BUFFER_get_left(&wb[currbuf]));\n if (i >= 0)\n tmpwrit = i;\n } else {\n SSLerr(SSL_F_SSL3_WRITE_PENDING, SSL_R_BIO_NOT_SET);\n i = -1;\n }\n if (i > 0 && tmpwrit == SSL3_BUFFER_get_left(&wb[currbuf])) {\n SSL3_BUFFER_set_left(&wb[currbuf], 0);\n SSL3_BUFFER_add_offset(&wb[currbuf], tmpwrit);\n if (currbuf + 1 < s->rlayer.numwpipes)\n continue;\n s->rwstate = SSL_NOTHING;\n *written = s->rlayer.wpend_ret;\n return 1;\n } else if (i <= 0) {\n if (SSL_IS_DTLS(s)) {\n SSL3_BUFFER_set_left(&wb[currbuf], 0);\n }\n return (i);\n }\n SSL3_BUFFER_add_offset(&wb[currbuf], tmpwrit);\n SSL3_BUFFER_sub_left(&wb[currbuf], tmpwrit);\n }\n}'] |
23,123 | 0 | https://github.com/libav/libav/blob/dad7a9c7c0ae8ebc56f2e3a24e6fa4da5c2cd491/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 h261_probe(AVProbeData *p)\n{\n uint32_t code= -1;\n int i;\n int valid_psc=0;\n int invalid_psc=0;\n int next_gn=0;\n int src_fmt=0;\n BitstreamContext bc;\n bitstream_init8(&bc, p->buf, p->buf_size);\n for(i=0; i<p->buf_size*8; i++){\n if ((code & 0x01ff0000) || !(code & 0xff00)) {\n code = (code << 8) + bitstream_read(&bc, 8);\n i += 7;\n } else\n code = (code << 1) + bitstream_read_bit(&bc);\n if ((code & 0xffff0000) == 0x10000) {\n int gn= (code>>12)&0xf;\n if(!gn)\n src_fmt= code&8;\n if(gn != next_gn) invalid_psc++;\n else valid_psc++;\n if(src_fmt){\n next_gn= (gn+1 )%13;\n }else{\n next_gn= (gn+1+!!gn)% 7;\n }\n }\n }\n if(valid_psc > 2*invalid_psc + 6){\n return AVPROBE_SCORE_EXTENSION;\n }else if(valid_psc > 2*invalid_psc + 2)\n return AVPROBE_SCORE_EXTENSION / 2;\n return 0;\n}', 'static inline int bitstream_init8(BitstreamContext *bc, const uint8_t *buffer,\n unsigned byte_size)\n{\n if (byte_size > INT_MAX / 8)\n return AVERROR_INVALIDDATA;\n return bitstream_init(bc, buffer, byte_size * 8);\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}'] |
23,124 | 0 | https://github.com/libav/libav/blob/18b59956e0e94017f1b519bb42c7c937b2f9f8a4/libavcodec/indeo3.c/#L192 | static av_cold int allocate_frame_buffers(Indeo3DecodeContext *ctx,
AVCodecContext *avctx)
{
int p, luma_width, luma_height, chroma_width, chroma_height;
int luma_pitch, chroma_pitch, luma_size, chroma_size;
luma_width = ctx->width;
luma_height = ctx->height;
if (luma_width < 16 || luma_width > 640 ||
luma_height < 16 || luma_height > 480 ||
luma_width & 3 || luma_height & 3) {
av_log(avctx, AV_LOG_ERROR, "Invalid picture dimensions: %d x %d!\n",
luma_width, luma_height);
return AVERROR_INVALIDDATA;
}
chroma_width = FFALIGN(luma_width >> 2, 4);
chroma_height = FFALIGN(luma_height >> 2, 4);
luma_pitch = FFALIGN(luma_width, 16);
chroma_pitch = FFALIGN(chroma_width, 16);
luma_size = luma_pitch * (luma_height + 1);
chroma_size = chroma_pitch * (chroma_height + 1);
for (p = 0; p < 3; p++) {
ctx->planes[p].pitch = !p ? luma_pitch : chroma_pitch;
ctx->planes[p].width = !p ? luma_width : chroma_width;
ctx->planes[p].height = !p ? luma_height : chroma_height;
ctx->planes[p].buffers[0] = av_malloc(!p ? luma_size : chroma_size);
ctx->planes[p].buffers[1] = av_malloc(!p ? luma_size : chroma_size);
memset(ctx->planes[p].buffers[0], 0x40, ctx->planes[p].pitch);
memset(ctx->planes[p].buffers[1], 0x40, ctx->planes[p].pitch);
ctx->planes[p].pixels[0] = ctx->planes[p].buffers[0] + ctx->planes[p].pitch;
ctx->planes[p].pixels[1] = ctx->planes[p].buffers[1] + ctx->planes[p].pitch;
}
return 0;
} | ['static av_cold int allocate_frame_buffers(Indeo3DecodeContext *ctx,\n AVCodecContext *avctx)\n{\n int p, luma_width, luma_height, chroma_width, chroma_height;\n int luma_pitch, chroma_pitch, luma_size, chroma_size;\n luma_width = ctx->width;\n luma_height = ctx->height;\n if (luma_width < 16 || luma_width > 640 ||\n luma_height < 16 || luma_height > 480 ||\n luma_width & 3 || luma_height & 3) {\n av_log(avctx, AV_LOG_ERROR, "Invalid picture dimensions: %d x %d!\\n",\n luma_width, luma_height);\n return AVERROR_INVALIDDATA;\n }\n chroma_width = FFALIGN(luma_width >> 2, 4);\n chroma_height = FFALIGN(luma_height >> 2, 4);\n luma_pitch = FFALIGN(luma_width, 16);\n chroma_pitch = FFALIGN(chroma_width, 16);\n luma_size = luma_pitch * (luma_height + 1);\n chroma_size = chroma_pitch * (chroma_height + 1);\n for (p = 0; p < 3; p++) {\n ctx->planes[p].pitch = !p ? luma_pitch : chroma_pitch;\n ctx->planes[p].width = !p ? luma_width : chroma_width;\n ctx->planes[p].height = !p ? luma_height : chroma_height;\n ctx->planes[p].buffers[0] = av_malloc(!p ? luma_size : chroma_size);\n ctx->planes[p].buffers[1] = av_malloc(!p ? luma_size : chroma_size);\n memset(ctx->planes[p].buffers[0], 0x40, ctx->planes[p].pitch);\n memset(ctx->planes[p].buffers[1], 0x40, ctx->planes[p].pitch);\n ctx->planes[p].pixels[0] = ctx->planes[p].buffers[0] + ctx->planes[p].pitch;\n ctx->planes[p].pixels[1] = ctx->planes[p].buffers[1] + ctx->planes[p].pitch;\n }\n return 0;\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_MEMALIGN\n ptr = memalign(32,size);\n#else\n ptr = malloc(size);\n#endif\n return ptr;\n}'] |
23,125 | 0 | https://github.com/openssl/openssl/blob/18e1e302452e6dea4500b6f981cee7e151294dea/crypto/bn/bn_ctx.c/#L268 | static unsigned int BN_STACK_pop(BN_STACK *st)
{
return st->indexes[--(st->depth)];
} | ['int BN_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}', 'void BN_CTX_start(BN_CTX *ctx)\n{\n CTXDBG("ENTER BN_CTX_start()", ctx);\n if (ctx->err_stack || ctx->too_many)\n ctx->err_stack++;\n else if (!BN_STACK_push(&ctx->stack, ctx->used)) {\n BNerr(BN_F_BN_CTX_START, BN_R_TOO_MANY_TEMPORARY_VARIABLES);\n ctx->err_stack++;\n }\n CTXDBG("LEAVE BN_CTX_start()", ctx);\n}', 'BIGNUM *BN_CTX_get(BN_CTX *ctx)\n{\n BIGNUM *ret;\n CTXDBG("ENTER BN_CTX_get()", ctx);\n if (ctx->err_stack || ctx->too_many)\n return NULL;\n if ((ret = BN_POOL_get(&ctx->pool, ctx->flags)) == NULL) {\n ctx->too_many = 1;\n BNerr(BN_F_BN_CTX_GET, BN_R_TOO_MANY_TEMPORARY_VARIABLES);\n return NULL;\n }\n BN_zero(ret);\n ret->flags &= (~BN_FLG_CONSTTIME);\n ctx->used++;\n CTXDBG("LEAVE BN_CTX_get()", ctx);\n return ret;\n}', '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}'] |
23,126 | 0 | https://github.com/openssl/openssl/blob/7d461736f7bd3af3c2f266f8541034ecf6f41ed9/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;
} | ['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 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_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_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}', '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}', '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}'] |
23,127 | 0 | https://github.com/openssl/openssl/blob/9f9442918aeaed5dc2442d81ab8d29fe3e1fb906/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);
if (BN_get_flags(b, BN_FLG_CONSTTIME) != 0)
BN_set_flags(a, BN_FLG_CONSTTIME);
a->top = b->top;
a->neg = b->neg;
bn_check_top(a);
return a;
} | ['BIGNUM *BN_mod_sqrt(BIGNUM *in, const BIGNUM *a, const BIGNUM *p, BN_CTX *ctx)\n{\n BIGNUM *ret = in;\n int err = 1;\n int r;\n BIGNUM *A, *b, *q, *t, *x, *y;\n int e, i, j;\n if (!BN_is_odd(p) || BN_abs_is_word(p, 1)) {\n if (BN_abs_is_word(p, 2)) {\n if (ret == NULL)\n ret = BN_new();\n if (ret == NULL)\n goto end;\n if (!BN_set_word(ret, BN_is_bit_set(a, 0))) {\n if (ret != in)\n BN_free(ret);\n return NULL;\n }\n bn_check_top(ret);\n return ret;\n }\n BNerr(BN_F_BN_MOD_SQRT, BN_R_P_IS_NOT_PRIME);\n return (NULL);\n }\n if (BN_is_zero(a) || BN_is_one(a)) {\n if (ret == NULL)\n ret = BN_new();\n if (ret == NULL)\n goto end;\n if (!BN_set_word(ret, BN_is_one(a))) {\n if (ret != in)\n BN_free(ret);\n return NULL;\n }\n bn_check_top(ret);\n return ret;\n }\n BN_CTX_start(ctx);\n A = BN_CTX_get(ctx);\n b = BN_CTX_get(ctx);\n q = BN_CTX_get(ctx);\n t = BN_CTX_get(ctx);\n x = BN_CTX_get(ctx);\n y = BN_CTX_get(ctx);\n if (y == NULL)\n goto end;\n if (ret == NULL)\n ret = BN_new();\n if (ret == NULL)\n goto end;\n if (!BN_nnmod(A, a, p, ctx))\n goto end;\n e = 1;\n while (!BN_is_bit_set(p, e))\n e++;\n if (e == 1) {\n if (!BN_rshift(q, p, 2))\n goto end;\n q->neg = 0;\n if (!BN_add_word(q, 1))\n goto end;\n if (!BN_mod_exp(ret, A, q, p, ctx))\n goto end;\n err = 0;\n goto vrfy;\n }\n if (e == 2) {\n if (!BN_mod_lshift1_quick(t, A, p))\n goto end;\n if (!BN_rshift(q, p, 3))\n goto end;\n q->neg = 0;\n if (!BN_mod_exp(b, t, q, p, ctx))\n goto end;\n if (!BN_mod_sqr(y, b, p, ctx))\n goto end;\n if (!BN_mod_mul(t, t, y, p, ctx))\n goto end;\n if (!BN_sub_word(t, 1))\n goto end;\n if (!BN_mod_mul(x, A, b, p, ctx))\n goto end;\n if (!BN_mod_mul(x, x, t, p, ctx))\n goto end;\n if (!BN_copy(ret, x))\n goto end;\n err = 0;\n goto vrfy;\n }\n if (!BN_copy(q, p))\n goto end;\n q->neg = 0;\n i = 2;\n do {\n if (i < 22) {\n if (!BN_set_word(y, i))\n goto end;\n } else {\n if (!BN_rand(y, BN_num_bits(p), 0, 0))\n goto end;\n if (BN_ucmp(y, p) >= 0) {\n if (!(p->neg ? BN_add : BN_sub) (y, y, p))\n goto end;\n }\n if (BN_is_zero(y))\n if (!BN_set_word(y, i))\n goto end;\n }\n r = BN_kronecker(y, q, ctx);\n if (r < -1)\n goto end;\n if (r == 0) {\n BNerr(BN_F_BN_MOD_SQRT, BN_R_P_IS_NOT_PRIME);\n goto end;\n }\n }\n while (r == 1 && ++i < 82);\n if (r != -1) {\n BNerr(BN_F_BN_MOD_SQRT, BN_R_TOO_MANY_ITERATIONS);\n goto end;\n }\n if (!BN_rshift(q, q, e))\n goto end;\n if (!BN_mod_exp(y, y, q, p, ctx))\n goto end;\n if (BN_is_one(y)) {\n BNerr(BN_F_BN_MOD_SQRT, BN_R_P_IS_NOT_PRIME);\n goto end;\n }\n if (!BN_rshift1(t, q))\n goto end;\n if (BN_is_zero(t)) {\n if (!BN_nnmod(t, A, p, ctx))\n goto end;\n if (BN_is_zero(t)) {\n BN_zero(ret);\n err = 0;\n goto end;\n } else if (!BN_one(x))\n goto end;\n } else {\n if (!BN_mod_exp(x, A, t, p, ctx))\n goto end;\n if (BN_is_zero(x)) {\n BN_zero(ret);\n err = 0;\n goto end;\n }\n }\n if (!BN_mod_sqr(b, x, p, ctx))\n goto end;\n if (!BN_mod_mul(b, b, A, p, ctx))\n goto end;\n if (!BN_mod_mul(x, x, A, p, ctx))\n goto end;\n while (1) {\n if (BN_is_one(b)) {\n if (!BN_copy(ret, x))\n goto end;\n err = 0;\n goto vrfy;\n }\n i = 1;\n if (!BN_mod_sqr(t, b, p, ctx))\n goto end;\n while (!BN_is_one(t)) {\n i++;\n if (i == e) {\n BNerr(BN_F_BN_MOD_SQRT, BN_R_NOT_A_SQUARE);\n goto end;\n }\n if (!BN_mod_mul(t, t, t, p, ctx))\n goto end;\n }\n if (!BN_copy(t, y))\n goto end;\n for (j = e - i - 1; j > 0; j--) {\n if (!BN_mod_sqr(t, t, p, ctx))\n goto end;\n }\n if (!BN_mod_mul(y, t, t, p, ctx))\n goto end;\n if (!BN_mod_mul(x, x, t, p, ctx))\n goto end;\n if (!BN_mod_mul(b, b, y, p, ctx))\n goto end;\n e = i;\n }\n vrfy:\n if (!err) {\n if (!BN_mod_sqr(x, ret, p, ctx))\n err = 1;\n if (!err && 0 != BN_cmp(x, A)) {\n BNerr(BN_F_BN_MOD_SQRT, BN_R_NOT_A_SQUARE);\n err = 1;\n }\n }\n end:\n if (err) {\n if (ret != in)\n BN_clear_free(ret);\n ret = NULL;\n }\n BN_CTX_end(ctx);\n bn_check_top(ret);\n return ret;\n}', 'int BN_mod_lshift1_quick(BIGNUM *r, const BIGNUM *a, const BIGNUM *m)\n{\n if (!BN_lshift1(r, a))\n return 0;\n bn_check_top(r);\n if (BN_cmp(r, m) >= 0)\n return BN_sub(r, r, m);\n return 1;\n}', 'int BN_rshift(BIGNUM *r, const BIGNUM *a, int n)\n{\n int i, j, nw, lb, rb;\n BN_ULONG *t, *f;\n BN_ULONG l, tmp;\n bn_check_top(r);\n bn_check_top(a);\n if (n < 0) {\n BNerr(BN_F_BN_RSHIFT, BN_R_INVALID_SHIFT);\n return 0;\n }\n nw = n / BN_BITS2;\n rb = n % BN_BITS2;\n lb = BN_BITS2 - rb;\n if (nw >= a->top || a->top == 0) {\n BN_zero(r);\n return (1);\n }\n i = (BN_num_bits(a) - n + (BN_BITS2 - 1)) / BN_BITS2;\n if (r != a) {\n if (bn_wexpand(r, i) == NULL)\n return (0);\n r->neg = a->neg;\n } else {\n if (n == 0)\n return 1;\n }\n f = &(a->d[nw]);\n t = r->d;\n j = a->top - nw;\n r->top = i;\n if (rb == 0) {\n for (i = j; i != 0; i--)\n *(t++) = *(f++);\n } else {\n l = *(f++);\n for (i = j - 1; i != 0; i--) {\n tmp = (l >> rb) & BN_MASK2;\n l = *(f++);\n *(t++) = (tmp | (l << lb)) & BN_MASK2;\n }\n if ((l = (l >> rb) & BN_MASK2))\n *(t) = l;\n }\n if (!r->top)\n r->neg = 0;\n bn_check_top(r);\n return (1);\n}', 'int BN_mod_exp(BIGNUM *r, const BIGNUM *a, const BIGNUM *p, const BIGNUM *m,\n BN_CTX *ctx)\n{\n int ret;\n bn_check_top(a);\n bn_check_top(p);\n bn_check_top(m);\n#define MONT_MUL_MOD\n#define MONT_EXP_WORD\n#define RECP_MUL_MOD\n#ifdef MONT_MUL_MOD\n if (BN_is_odd(m)) {\n# ifdef MONT_EXP_WORD\n if (a->top == 1 && !a->neg\n && (BN_get_flags(p, BN_FLG_CONSTTIME) == 0)) {\n BN_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 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}', '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}'] |
23,128 | 0 | https://github.com/openssl/openssl/blob/25670f3e87d3a9e7ea8ffb2b717a288e2b3024f5/crypto/err/err.c/#L379 | void ERR_clear_error(void)
{
int i;
ERR_STATE *es;
es = ERR_get_state();
for (i = 0; i < ERR_NUM_ERRORS; i++) {
err_clear(es, i);
}
es->top = es->bottom = 0;
} | ['void ERR_clear_error(void)\n{\n int i;\n ERR_STATE *es;\n es = ERR_get_state();\n for (i = 0; i < ERR_NUM_ERRORS; i++) {\n err_clear(es, i);\n }\n es->top = es->bottom = 0;\n}', 'ERR_STATE *ERR_get_state(void)\n{\n ERR_STATE *state = NULL;\n if (!RUN_ONCE(&err_init, err_do_init))\n return NULL;\n state = CRYPTO_THREAD_get_local(&err_thread_local);\n if (state == NULL) {\n state = OPENSSL_zalloc(sizeof(*state));\n if (state == NULL)\n return NULL;\n if (!CRYPTO_THREAD_set_local(&err_thread_local, state)) {\n ERR_STATE_free(state);\n return NULL;\n }\n OPENSSL_init_crypto(OPENSSL_INIT_LOAD_CRYPTO_STRINGS, NULL);\n ossl_init_thread_start(OPENSSL_INIT_THREAD_ERR_STATE);\n }\n return state;\n}', 'int CRYPTO_THREAD_run_once(CRYPTO_ONCE *once, void (*init)(void))\n{\n if (pthread_once(once, init) != 0)\n return 0;\n return 1;\n}'] |
23,129 | 0 | https://github.com/openssl/openssl/blob/ac33c5a477568127ad99b1260a8978477de50e36/crypto/lhash/lhash.c/#L209 | void *lh_delete(_LHASH *lh, const void *data)
{
unsigned long hash;
LHASH_NODE *nn, **rn;
void *ret;
lh->error = 0;
rn = getrn(lh, data, &hash);
if (*rn == NULL) {
lh->num_no_delete++;
return (NULL);
} else {
nn = *rn;
*rn = nn->next;
ret = nn->data;
OPENSSL_free(nn);
lh->num_delete++;
}
lh->num_items--;
if ((lh->num_nodes > MIN_NODES) &&
(lh->down_load >= (lh->num_items * LH_LOAD_MULT / lh->num_nodes)))
contract(lh);
return (ret);
} | ['static int test_tlsafile(SSL_CTX *ctx, const char *basename,\n FILE *f, const char *path)\n{\n char *line;\n int testno = 0;\n int ret = 1;\n SSL *ssl;\n while (ret > 0 && (line = read_to_eol(f)) != NULL) {\n STACK_OF(X509) *chain;\n int ntlsa;\n int ncert;\n int want;\n int want_depth;\n int off;\n int i;\n int ok;\n int err;\n int mdpth;\n if (*line == \'\\0\' || *line == \'#\')\n continue;\n ++testno;\n if (sscanf(line, "%d %d %d %d%n", &ntlsa, &ncert, &want, &want_depth, &off) != 4\n || !allws(line + off)) {\n fprintf(stderr, "Expected tlsa count, cert count and result"\n " at test %d of %s\\n", testno, path);\n return 0;\n }\n if ((ssl = SSL_new(ctx)) == NULL)\n return -1;\n SSL_set_connect_state(ssl);\n if (SSL_dane_enable(ssl, basename) <= 0) {\n SSL_free(ssl);\n return -1;\n }\n for (i = 0; i < ntlsa; ++i) {\n if ((line = read_to_eol(f)) == NULL || !tlsa_import_rr(ssl, line)) {\n SSL_free(ssl);\n return 0;\n }\n }\n ERR_clear_error();\n chain = load_chain(f, ncert);\n if (chain == NULL) {\n SSL_free(ssl);\n return -1;\n }\n ok = verify_chain(ssl, chain);\n sk_X509_pop_free(chain, X509_free);\n err = SSL_get_verify_result(ssl);\n mdpth = SSL_get0_dane_authority(ssl, NULL, NULL);\n SSL_free(ssl);\n if (ok < 0) {\n ret = 0;\n fprintf(stderr, "verify_chain internal error in %s test %d\\n",\n path, testno);\n print_errors();\n continue;\n }\n if (err != want || (want == 0 && !ok)) {\n ret = 0;\n if (err != want) {\n if (want == X509_V_OK)\n fprintf(stderr, "Verification failure in %s test %d: %d: %s\\n",\n path, testno, err, X509_verify_cert_error_string(err));\n else\n fprintf(stderr, "Unexpected error in %s test %d: %d: wanted %d\\n",\n path, testno, err, want);\n } else {\n fprintf(stderr, "Verification failure in %s test %d: ok=0\\n",\n path, testno);\n }\n print_errors();\n continue;\n }\n if (mdpth != want_depth) {\n ret = 0;\n fprintf(stderr, "Wrong match depth, in %s test %d: wanted %d, got: %d\\n",\n path, testno, want_depth, mdpth);\n }\n fprintf(stderr, "%s: test %d successful\\n", path, testno);\n }\n ERR_clear_error();\n return ret;\n}', 'SSL *SSL_new(SSL_CTX *ctx)\n{\n SSL *s;\n if (ctx == NULL) {\n SSLerr(SSL_F_SSL_NEW, SSL_R_NULL_SSL_CTX);\n return (NULL);\n }\n if (ctx->method == NULL) {\n SSLerr(SSL_F_SSL_NEW, SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION);\n return (NULL);\n }\n s = OPENSSL_zalloc(sizeof(*s));\n if (s == NULL)\n goto err;\n RECORD_LAYER_init(&s->rlayer, s);\n s->options = ctx->options;\n s->min_proto_version = ctx->min_proto_version;\n s->max_proto_version = ctx->max_proto_version;\n s->mode = ctx->mode;\n s->max_cert_list = ctx->max_cert_list;\n s->references = 1;\n s->cert = ssl_cert_dup(ctx->cert);\n if (s->cert == NULL)\n goto err;\n RECORD_LAYER_set_read_ahead(&s->rlayer, ctx->read_ahead);\n s->msg_callback = ctx->msg_callback;\n s->msg_callback_arg = ctx->msg_callback_arg;\n s->verify_mode = ctx->verify_mode;\n s->not_resumable_session_cb = ctx->not_resumable_session_cb;\n s->sid_ctx_length = ctx->sid_ctx_length;\n OPENSSL_assert(s->sid_ctx_length <= sizeof s->sid_ctx);\n memcpy(&s->sid_ctx, &ctx->sid_ctx, sizeof(s->sid_ctx));\n s->verify_callback = ctx->default_verify_callback;\n s->generate_session_id = ctx->generate_session_id;\n s->param = X509_VERIFY_PARAM_new();\n if (s->param == NULL)\n goto err;\n X509_VERIFY_PARAM_inherit(s->param, ctx->param);\n s->quiet_shutdown = ctx->quiet_shutdown;\n s->max_send_fragment = ctx->max_send_fragment;\n CRYPTO_add(&ctx->references, 1, CRYPTO_LOCK_SSL_CTX);\n s->ctx = ctx;\n s->tlsext_debug_cb = 0;\n s->tlsext_debug_arg = NULL;\n s->tlsext_ticket_expected = 0;\n s->tlsext_status_type = -1;\n s->tlsext_status_expected = 0;\n s->tlsext_ocsp_ids = NULL;\n s->tlsext_ocsp_exts = NULL;\n s->tlsext_ocsp_resp = NULL;\n s->tlsext_ocsp_resplen = -1;\n CRYPTO_add(&ctx->references, 1, CRYPTO_LOCK_SSL_CTX);\n s->initial_ctx = ctx;\n# ifndef OPENSSL_NO_EC\n if (ctx->tlsext_ecpointformatlist) {\n s->tlsext_ecpointformatlist =\n OPENSSL_memdup(ctx->tlsext_ecpointformatlist,\n ctx->tlsext_ecpointformatlist_length);\n if (!s->tlsext_ecpointformatlist)\n goto err;\n s->tlsext_ecpointformatlist_length =\n ctx->tlsext_ecpointformatlist_length;\n }\n if (ctx->tlsext_ellipticcurvelist) {\n s->tlsext_ellipticcurvelist =\n OPENSSL_memdup(ctx->tlsext_ellipticcurvelist,\n ctx->tlsext_ellipticcurvelist_length);\n if (!s->tlsext_ellipticcurvelist)\n goto err;\n s->tlsext_ellipticcurvelist_length =\n ctx->tlsext_ellipticcurvelist_length;\n }\n# endif\n# ifndef OPENSSL_NO_NEXTPROTONEG\n s->next_proto_negotiated = NULL;\n# endif\n if (s->ctx->alpn_client_proto_list) {\n s->alpn_client_proto_list =\n OPENSSL_malloc(s->ctx->alpn_client_proto_list_len);\n if (s->alpn_client_proto_list == NULL)\n goto err;\n memcpy(s->alpn_client_proto_list, s->ctx->alpn_client_proto_list,\n s->ctx->alpn_client_proto_list_len);\n s->alpn_client_proto_list_len = s->ctx->alpn_client_proto_list_len;\n }\n s->verify_result = X509_V_OK;\n s->default_passwd_callback = ctx->default_passwd_callback;\n s->default_passwd_callback_userdata = ctx->default_passwd_callback_userdata;\n s->method = ctx->method;\n if (!s->method->ssl_new(s))\n goto err;\n s->server = (ctx->method->ssl_accept == ssl_undefined_function) ? 0 : 1;\n if (!SSL_clear(s))\n goto err;\n CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);\n#ifndef OPENSSL_NO_PSK\n s->psk_client_callback = ctx->psk_client_callback;\n s->psk_server_callback = ctx->psk_server_callback;\n#endif\n s->job = NULL;\n return (s);\n err:\n SSL_free(s);\n SSLerr(SSL_F_SSL_NEW, ERR_R_MALLOC_FAILURE);\n return (NULL);\n}', 'void SSL_free(SSL *s)\n{\n int i;\n if (s == NULL)\n return;\n i = CRYPTO_add(&s->references, -1, CRYPTO_LOCK_SSL);\n#ifdef REF_PRINT\n REF_PRINT("SSL", s);\n#endif\n if (i > 0)\n return;\n#ifdef REF_CHECK\n if (i < 0) {\n fprintf(stderr, "SSL_free, bad reference count\\n");\n abort();\n }\n#endif\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 if (s->bbio != NULL) {\n if (s->bbio == s->wbio) {\n s->wbio = BIO_pop(s->wbio);\n }\n BIO_free(s->bbio);\n s->bbio = NULL;\n }\n BIO_free_all(s->rbio);\n if (s->wbio != s->rbio)\n BIO_free_all(s->wbio);\n BUF_MEM_free(s->init_buf);\n sk_SSL_CIPHER_free(s->cipher_list);\n sk_SSL_CIPHER_free(s->cipher_list_by_id);\n if (s->session != NULL) {\n ssl_clear_bad_session(s);\n SSL_SESSION_free(s->session);\n }\n clear_ciphers(s);\n ssl_cert_free(s->cert);\n OPENSSL_free(s->tlsext_hostname);\n SSL_CTX_free(s->initial_ctx);\n#ifndef OPENSSL_NO_EC\n OPENSSL_free(s->tlsext_ecpointformatlist);\n OPENSSL_free(s->tlsext_ellipticcurvelist);\n#endif\n sk_X509_EXTENSION_pop_free(s->tlsext_ocsp_exts, X509_EXTENSION_free);\n sk_OCSP_RESPID_pop_free(s->tlsext_ocsp_ids, OCSP_RESPID_free);\n OPENSSL_free(s->tlsext_ocsp_resp);\n OPENSSL_free(s->alpn_client_proto_list);\n sk_X509_NAME_pop_free(s->client_CA, X509_NAME_free);\n if (s->method != NULL)\n s->method->ssl_free(s);\n RECORD_LAYER_release(&s->rlayer);\n SSL_CTX_free(s->ctx);\n#if !defined(OPENSSL_NO_NEXTPROTONEG)\n OPENSSL_free(s->next_proto_negotiated);\n#endif\n#ifndef OPENSSL_NO_SRTP\n sk_SRTP_PROTECTION_PROFILE_free(s->srtp_profiles);\n#endif\n 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->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_w_lock(CRYPTO_LOCK_SSL_CTX);\n if ((r = lh_SSL_SESSION_retrieve(ctx->sessions, c)) == c) {\n ret = 1;\n r = lh_SSL_SESSION_delete(ctx->sessions, c);\n SSL_SESSION_list_remove(ctx, c);\n }\n if (lck)\n CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX);\n if (ret) {\n r->not_resumable = 1;\n if (ctx->remove_session_cb != NULL)\n ctx->remove_session_cb(ctx, r);\n SSL_SESSION_free(r);\n }\n } else\n ret = 0;\n return (ret);\n}', 'DEFINE_LHASH_OF(SSL_SESSION)', 'void *lh_delete(_LHASH *lh, const void *data)\n{\n unsigned long hash;\n LHASH_NODE *nn, **rn;\n void *ret;\n lh->error = 0;\n rn = getrn(lh, data, &hash);\n if (*rn == NULL) {\n lh->num_no_delete++;\n return (NULL);\n } else {\n nn = *rn;\n *rn = nn->next;\n ret = nn->data;\n OPENSSL_free(nn);\n lh->num_delete++;\n }\n lh->num_items--;\n if ((lh->num_nodes > MIN_NODES) &&\n (lh->down_load >= (lh->num_items * LH_LOAD_MULT / lh->num_nodes)))\n contract(lh);\n return (ret);\n}'] |
23,130 | 0 | https://github.com/openssl/openssl/blob/ea32151f7b9353f8906188d007c6893704ac17bb/crypto/lhash/lhash.c/#L123 | void *OPENSSL_LH_delete(OPENSSL_LHASH *lh, const void *data)
{
unsigned long hash;
OPENSSL_LH_NODE *nn, **rn;
void *ret;
lh->error = 0;
rn = getrn(lh, data, &hash);
if (*rn == NULL) {
lh->num_no_delete++;
return (NULL);
} else {
nn = *rn;
*rn = nn->next;
ret = nn->data;
OPENSSL_free(nn);
lh->num_delete++;
}
lh->num_items--;
if ((lh->num_nodes > MIN_NODES) &&
(lh->down_load >= (lh->num_items * LH_LOAD_MULT / lh->num_nodes)))
contract(lh);
return (ret);
} | ['WORK_STATE tls_post_process_client_hello(SSL *s, WORK_STATE wst)\n{\n int al = SSL_AD_HANDSHAKE_FAILURE;\n const SSL_CIPHER *cipher;\n if (wst == WORK_MORE_A) {\n if (!s->hit) {\n if (s->cert->cert_cb) {\n int rv = s->cert->cert_cb(s, s->cert->cert_cb_arg);\n if (rv == 0) {\n al = SSL_AD_INTERNAL_ERROR;\n SSLerr(SSL_F_TLS_POST_PROCESS_CLIENT_HELLO, SSL_R_CERT_CB_ERROR);\n goto f_err;\n }\n if (rv < 0) {\n s->rwstate = SSL_X509_LOOKUP;\n return WORK_MORE_A;\n }\n s->rwstate = SSL_NOTHING;\n }\n cipher = ssl3_choose_cipher(s, s->session->ciphers, SSL_get_ciphers(s));\n if (cipher == NULL) {\n SSLerr(SSL_F_TLS_POST_PROCESS_CLIENT_HELLO, SSL_R_NO_SHARED_CIPHER);\n goto f_err;\n }\n s->s3->tmp.new_cipher = cipher;\n if (s->not_resumable_session_cb != NULL)\n s->session->not_resumable = s->not_resumable_session_cb(s,\n ((cipher->algorithm_mkey & (SSL_kDHE | SSL_kECDHE)) != 0));\n if (s->session->not_resumable)\n s->tlsext_ticket_expected = 0;\n } else {\n s->s3->tmp.new_cipher = s->session->cipher;\n }\n if (!(s->verify_mode & SSL_VERIFY_PEER)) {\n if (!ssl3_digest_cached_records(s, 0)) {\n al = SSL_AD_INTERNAL_ERROR;\n goto f_err;\n }\n }\n if (s->version >= SSL3_VERSION) {\n if (ssl_check_clienthello_tlsext_late(s) <= 0) {\n SSLerr(SSL_F_TLS_POST_PROCESS_CLIENT_HELLO,\n SSL_R_CLIENTHELLO_TLSEXT);\n goto f_err;\n }\n }\n wst = WORK_MORE_B;\n }\n#ifndef OPENSSL_NO_SRP\n if (wst == WORK_MORE_B) {\n int ret;\n if ((ret = ssl_check_srp_ext_ClientHello(s, &al)) < 0) {\n s->rwstate = SSL_X509_LOOKUP;\n return WORK_MORE_B;\n }\n if (ret != SSL_ERROR_NONE) {\n if (al != TLS1_AD_UNKNOWN_PSK_IDENTITY)\n SSLerr(SSL_F_TLS_POST_PROCESS_CLIENT_HELLO,\n SSL_R_CLIENTHELLO_TLSEXT);\n goto f_err;\n }\n }\n#endif\n s->renegotiate = 2;\n return WORK_FINISHED_STOP;\n f_err:\n ssl3_send_alert(s, SSL3_AL_FATAL, al);\n ossl_statem_set_error(s);\n return WORK_ERROR;\n}', 'int ssl3_send_alert(SSL *s, int level, int desc)\n{\n desc = s->method->ssl3_enc->alert_value(desc);\n if (s->version == SSL3_VERSION && desc == SSL_AD_PROTOCOL_VERSION)\n desc = SSL_AD_HANDSHAKE_FAILURE;\n if (desc < 0)\n return -1;\n if ((level == SSL3_AL_FATAL) && (s->session != NULL))\n SSL_CTX_remove_session(s->ctx, s->session);\n s->s3->alert_dispatch = 1;\n s->s3->send_alert[0] = level;\n s->s3->send_alert[1] = desc;\n if (!RECORD_LAYER_write_pending(&s->rlayer)) {\n return s->method->ssl_dispatch_alert(s);\n }\n return -1;\n}', 'int SSL_CTX_remove_session(SSL_CTX *ctx, SSL_SESSION *c)\n{\n return remove_session_lock(ctx, c, 1);\n}', 'static int remove_session_lock(SSL_CTX *ctx, SSL_SESSION *c, int lck)\n{\n SSL_SESSION *r;\n int ret = 0;\n if ((c != NULL) && (c->session_id_length != 0)) {\n if (lck)\n CRYPTO_THREAD_write_lock(ctx->lock);\n if ((r = lh_SSL_SESSION_retrieve(ctx->sessions, c)) == c) {\n ret = 1;\n r = lh_SSL_SESSION_delete(ctx->sessions, c);\n SSL_SESSION_list_remove(ctx, c);\n }\n if (lck)\n CRYPTO_THREAD_unlock(ctx->lock);\n if (ret) {\n r->not_resumable = 1;\n if (ctx->remove_session_cb != NULL)\n ctx->remove_session_cb(ctx, r);\n SSL_SESSION_free(r);\n }\n } else\n ret = 0;\n return (ret);\n}', 'DEFINE_LHASH_OF(SSL_SESSION)', 'void *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}'] |
23,131 | 0 | https://github.com/nginx/nginx/blob/78aacc838bac5c92fe92f8533526515766cfce15/src/http/ngx_http_request.c/#L3274 | static ngx_int_t
ngx_http_post_action(ngx_http_request_t *r)
{
ngx_http_core_loc_conf_t *clcf;
clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
if (clcf->post_action.data == NULL) {
return NGX_DECLINED;
}
if (r->post_action && r->uri_changes == 0) {
return NGX_DECLINED;
}
ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
"post action: \"%V\"", &clcf->post_action);
r->main->count--;
r->http_version = NGX_HTTP_VERSION_9;
r->header_only = 1;
r->post_action = 1;
r->read_event_handler = ngx_http_block_reading;
if (clcf->post_action.data[0] == '/') {
ngx_http_internal_redirect(r, &clcf->post_action, NULL);
} else {
ngx_http_named_location(r, &clcf->post_action);
}
return NGX_OK;
} | ['static void\nngx_http_upstream_init_request(ngx_http_request_t *r)\n{\n ngx_str_t *host;\n ngx_uint_t i;\n ngx_resolver_ctx_t *ctx, temp;\n ngx_http_cleanup_t *cln;\n ngx_http_upstream_t *u;\n ngx_http_core_loc_conf_t *clcf;\n ngx_http_upstream_srv_conf_t *uscf, **uscfp;\n ngx_http_upstream_main_conf_t *umcf;\n if (r->aio) {\n return;\n }\n u = r->upstream;\n#if (NGX_HTTP_CACHE)\n if (u->conf->cache) {\n ngx_int_t rc;\n rc = ngx_http_upstream_cache(r, u);\n if (rc == NGX_BUSY) {\n r->write_event_handler = ngx_http_upstream_init_request;\n return;\n }\n r->write_event_handler = ngx_http_request_empty_handler;\n if (rc == NGX_DONE) {\n return;\n }\n if (rc != NGX_DECLINED) {\n ngx_http_finalize_request(r, rc);\n return;\n }\n }\n#endif\n u->store = (u->conf->store || u->conf->store_lengths);\n if (!u->store && !r->post_action && !u->conf->ignore_client_abort) {\n r->read_event_handler = ngx_http_upstream_rd_check_broken_connection;\n r->write_event_handler = ngx_http_upstream_wr_check_broken_connection;\n }\n if (r->request_body) {\n u->request_bufs = r->request_body->bufs;\n }\n if (u->create_request(r) != NGX_OK) {\n ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);\n return;\n }\n u->peer.local = ngx_http_upstream_get_local(r, u->conf->local);\n clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);\n u->output.alignment = clcf->directio_alignment;\n u->output.pool = r->pool;\n u->output.bufs.num = 1;\n u->output.bufs.size = clcf->client_body_buffer_size;\n u->output.output_filter = ngx_chain_writer;\n u->output.filter_ctx = &u->writer;\n u->writer.pool = r->pool;\n if (r->upstream_states == NULL) {\n r->upstream_states = ngx_array_create(r->pool, 1,\n sizeof(ngx_http_upstream_state_t));\n if (r->upstream_states == NULL) {\n ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);\n return;\n }\n } else {\n u->state = ngx_array_push(r->upstream_states);\n if (u->state == NULL) {\n ngx_http_upstream_finalize_request(r, u,\n NGX_HTTP_INTERNAL_SERVER_ERROR);\n return;\n }\n ngx_memzero(u->state, sizeof(ngx_http_upstream_state_t));\n }\n cln = ngx_http_cleanup_add(r, 0);\n if (cln == NULL) {\n ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);\n return;\n }\n cln->handler = ngx_http_upstream_cleanup;\n cln->data = r;\n u->cleanup = &cln->handler;\n if (u->resolved == NULL) {\n uscf = u->conf->upstream;\n } else {\n if (u->resolved->sockaddr) {\n if (ngx_http_upstream_create_round_robin_peer(r, u->resolved)\n != NGX_OK)\n {\n ngx_http_upstream_finalize_request(r, u,\n NGX_HTTP_INTERNAL_SERVER_ERROR);\n return;\n }\n ngx_http_upstream_connect(r, u);\n return;\n }\n host = &u->resolved->host;\n umcf = ngx_http_get_module_main_conf(r, ngx_http_upstream_module);\n uscfp = umcf->upstreams.elts;\n for (i = 0; i < umcf->upstreams.nelts; i++) {\n uscf = uscfp[i];\n if (uscf->host.len == host->len\n && ((uscf->port == 0 && u->resolved->no_port)\n || uscf->port == u->resolved->port)\n && ngx_memcmp(uscf->host.data, host->data, host->len) == 0)\n {\n goto found;\n }\n }\n if (u->resolved->port == 0) {\n ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,\n "no port in upstream \\"%V\\"", host);\n ngx_http_upstream_finalize_request(r, u,\n NGX_HTTP_INTERNAL_SERVER_ERROR);\n return;\n }\n temp.name = *host;\n ctx = ngx_resolve_start(clcf->resolver, &temp);\n if (ctx == NULL) {\n ngx_http_upstream_finalize_request(r, u,\n NGX_HTTP_INTERNAL_SERVER_ERROR);\n return;\n }\n if (ctx == NGX_NO_RESOLVER) {\n ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,\n "no resolver defined to resolve %V", host);\n ngx_http_upstream_finalize_request(r, u, NGX_HTTP_BAD_GATEWAY);\n return;\n }\n ctx->name = *host;\n ctx->type = NGX_RESOLVE_A;\n ctx->handler = ngx_http_upstream_resolve_handler;\n ctx->data = r;\n ctx->timeout = clcf->resolver_timeout;\n u->resolved->ctx = ctx;\n if (ngx_resolve_name(ctx) != NGX_OK) {\n u->resolved->ctx = NULL;\n ngx_http_upstream_finalize_request(r, u,\n NGX_HTTP_INTERNAL_SERVER_ERROR);\n return;\n }\n return;\n }\nfound:\n if (uscf == NULL) {\n ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0,\n "no upstream configuration");\n ngx_http_upstream_finalize_request(r, u,\n NGX_HTTP_INTERNAL_SERVER_ERROR);\n return;\n }\n if (uscf->peer.init(r, uscf) != NGX_OK) {\n ngx_http_upstream_finalize_request(r, u,\n NGX_HTTP_INTERNAL_SERVER_ERROR);\n return;\n }\n ngx_http_upstream_connect(r, u);\n}', 'static void\nngx_http_upstream_finalize_request(ngx_http_request_t *r,\n ngx_http_upstream_t *u, ngx_int_t rc)\n{\n ngx_time_t *tp;\n ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,\n "finalize http upstream request: %i", rc);\n if (u->cleanup) {\n *u->cleanup = NULL;\n u->cleanup = NULL;\n }\n if (u->resolved && u->resolved->ctx) {\n ngx_resolve_name_done(u->resolved->ctx);\n u->resolved->ctx = NULL;\n }\n if (u->state && u->state->response_sec) {\n tp = ngx_timeofday();\n u->state->response_sec = tp->sec - u->state->response_sec;\n u->state->response_msec = tp->msec - u->state->response_msec;\n if (u->pipe && u->pipe->read_length) {\n u->state->response_length = u->pipe->read_length;\n }\n }\n u->finalize_request(r, rc);\n if (u->peer.free && u->peer.sockaddr) {\n u->peer.free(&u->peer, u->peer.data, 0);\n u->peer.sockaddr = NULL;\n }\n if (u->peer.connection) {\n#if (NGX_HTTP_SSL)\n if (u->peer.connection->ssl) {\n u->peer.connection->ssl->no_wait_shutdown = 1;\n (void) ngx_ssl_shutdown(u->peer.connection);\n }\n#endif\n ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,\n "close http upstream connection: %d",\n u->peer.connection->fd);\n if (u->peer.connection->pool) {\n ngx_destroy_pool(u->peer.connection->pool);\n }\n ngx_close_connection(u->peer.connection);\n }\n u->peer.connection = NULL;\n if (u->pipe && u->pipe->temp_file) {\n ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,\n "http upstream temp fd: %d",\n u->pipe->temp_file->file.fd);\n }\n if (u->store && u->pipe && u->pipe->temp_file\n && u->pipe->temp_file->file.fd != NGX_INVALID_FILE)\n {\n if (ngx_delete_file(u->pipe->temp_file->file.name.data)\n == NGX_FILE_ERROR)\n {\n ngx_log_error(NGX_LOG_CRIT, r->connection->log, ngx_errno,\n ngx_delete_file_n " \\"%s\\" failed",\n u->pipe->temp_file->file.name.data);\n }\n }\n#if (NGX_HTTP_CACHE)\n if (r->cache) {\n if (u->cacheable) {\n if (rc == NGX_HTTP_BAD_GATEWAY || rc == NGX_HTTP_GATEWAY_TIME_OUT) {\n time_t valid;\n valid = ngx_http_file_cache_valid(u->conf->cache_valid, rc);\n if (valid) {\n r->cache->valid_sec = ngx_time() + valid;\n r->cache->error = rc;\n }\n }\n }\n ngx_http_file_cache_free(r->cache, u->pipe->temp_file);\n }\n#endif\n if (rc == NGX_DECLINED) {\n return;\n }\n r->connection->log->action = "sending to client";\n if (!u->header_sent\n || rc == NGX_HTTP_REQUEST_TIME_OUT\n || rc == NGX_HTTP_CLIENT_CLOSED_REQUEST)\n {\n ngx_http_finalize_request(r, rc);\n return;\n }\n if (rc == NGX_ERROR || rc >= NGX_HTTP_SPECIAL_RESPONSE) {\n rc = 0;\n }\n if (r->header_only) {\n ngx_http_finalize_request(r, rc);\n return;\n }\n if (rc == 0) {\n rc = ngx_http_send_special(r, NGX_HTTP_LAST);\n }\n ngx_http_finalize_request(r, rc);\n}', 'void\nngx_http_finalize_request(ngx_http_request_t *r, ngx_int_t rc)\n{\n ngx_connection_t *c;\n ngx_http_request_t *pr;\n ngx_http_core_loc_conf_t *clcf;\n c = r->connection;\n ngx_log_debug5(NGX_LOG_DEBUG_HTTP, c->log, 0,\n "http finalize request: %d, \\"%V?%V\\" a:%d, c:%d",\n rc, &r->uri, &r->args, r == c->data, r->main->count);\n if (rc == NGX_DONE) {\n ngx_http_finalize_connection(r);\n return;\n }\n if (rc == NGX_OK && r->filter_finalize) {\n c->error = 1;\n }\n if (rc == NGX_DECLINED) {\n r->content_handler = NULL;\n r->write_event_handler = ngx_http_core_run_phases;\n ngx_http_core_run_phases(r);\n return;\n }\n if (r != r->main && r->post_subrequest) {\n rc = r->post_subrequest->handler(r, r->post_subrequest->data, rc);\n }\n if (rc == NGX_ERROR\n || rc == NGX_HTTP_REQUEST_TIME_OUT\n || rc == NGX_HTTP_CLIENT_CLOSED_REQUEST\n || c->error)\n {\n if (ngx_http_post_action(r) == NGX_OK) {\n return;\n }\n if (r->main->blocked) {\n r->write_event_handler = ngx_http_request_finalizer;\n }\n ngx_http_terminate_request(r, rc);\n return;\n }\n if (rc >= NGX_HTTP_SPECIAL_RESPONSE\n || rc == NGX_HTTP_CREATED\n || rc == NGX_HTTP_NO_CONTENT)\n {\n if (rc == NGX_HTTP_CLOSE) {\n ngx_http_terminate_request(r, rc);\n return;\n }\n if (r == r->main) {\n if (c->read->timer_set) {\n ngx_del_timer(c->read);\n }\n if (c->write->timer_set) {\n ngx_del_timer(c->write);\n }\n }\n c->read->handler = ngx_http_request_handler;\n c->write->handler = ngx_http_request_handler;\n ngx_http_finalize_request(r, ngx_http_special_response_handler(r, rc));\n return;\n }\n if (r != r->main) {\n if (r->buffered || r->postponed) {\n if (ngx_http_set_write_handler(r) != NGX_OK) {\n ngx_http_terminate_request(r, 0);\n }\n return;\n }\n pr = r->parent;\n if (r == c->data) {\n r->main->count--;\n r->main->subrequests++;\n if (!r->logged) {\n clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);\n if (clcf->log_subrequest) {\n ngx_http_log_request(r);\n }\n r->logged = 1;\n } else {\n ngx_log_error(NGX_LOG_ALERT, c->log, 0,\n "subrequest: \\"%V?%V\\" logged again",\n &r->uri, &r->args);\n }\n r->done = 1;\n if (pr->postponed && pr->postponed->request == r) {\n pr->postponed = pr->postponed->next;\n }\n c->data = pr;\n } else {\n ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0,\n "http finalize non-active request: \\"%V?%V\\"",\n &r->uri, &r->args);\n r->write_event_handler = ngx_http_request_finalizer;\n if (r->waited) {\n r->done = 1;\n }\n }\n if (ngx_http_post_request(pr, NULL) != NGX_OK) {\n r->main->count++;\n ngx_http_terminate_request(r, 0);\n return;\n }\n ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0,\n "http wake parent request: \\"%V?%V\\"",\n &pr->uri, &pr->args);\n return;\n }\n if (r->buffered || c->buffered || r->postponed || r->blocked) {\n if (ngx_http_set_write_handler(r) != NGX_OK) {\n ngx_http_terminate_request(r, 0);\n }\n return;\n }\n if (r != c->data) {\n ngx_log_error(NGX_LOG_ALERT, c->log, 0,\n "http finalize non-active request: \\"%V?%V\\"",\n &r->uri, &r->args);\n return;\n }\n r->done = 1;\n r->write_event_handler = ngx_http_request_empty_handler;\n if (!r->post_action) {\n r->request_complete = 1;\n }\n if (ngx_http_post_action(r) == NGX_OK) {\n return;\n }\n if (c->read->timer_set) {\n ngx_del_timer(c->read);\n }\n if (c->write->timer_set) {\n c->write->delayed = 0;\n ngx_del_timer(c->write);\n }\n if (c->read->eof) {\n ngx_http_close_request(r, 0);\n return;\n }\n ngx_http_finalize_connection(r);\n}', 'static ngx_int_t\nngx_http_post_action(ngx_http_request_t *r)\n{\n ngx_http_core_loc_conf_t *clcf;\n clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);\n if (clcf->post_action.data == NULL) {\n return NGX_DECLINED;\n }\n if (r->post_action && r->uri_changes == 0) {\n return NGX_DECLINED;\n }\n ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,\n "post action: \\"%V\\"", &clcf->post_action);\n r->main->count--;\n r->http_version = NGX_HTTP_VERSION_9;\n r->header_only = 1;\n r->post_action = 1;\n r->read_event_handler = ngx_http_block_reading;\n if (clcf->post_action.data[0] == \'/\') {\n ngx_http_internal_redirect(r, &clcf->post_action, NULL);\n } else {\n ngx_http_named_location(r, &clcf->post_action);\n }\n return NGX_OK;\n}'] |
23,132 | 0 | https://github.com/openssl/openssl/blob/a6a66e4511eec0f4ecc2943117a42b3723eb2222/crypto/rand/rand_lib.c/#L858 | int RAND_pseudo_bytes(unsigned char *buf, int num)
{
const RAND_METHOD *meth = RAND_get_rand_method();
if (meth->pseudorand != NULL)
return meth->pseudorand(buf, num);
return -1;
} | ['int RAND_pseudo_bytes(unsigned char *buf, int num)\n{\n const RAND_METHOD *meth = RAND_get_rand_method();\n if (meth->pseudorand != NULL)\n return meth->pseudorand(buf, num);\n return -1;\n}', 'const RAND_METHOD *RAND_get_rand_method(void)\n{\n#ifdef FIPS_MODE\n return NULL;\n#else\n const RAND_METHOD *tmp_meth = NULL;\n if (!RUN_ONCE(&rand_init, do_rand_init))\n return NULL;\n CRYPTO_THREAD_write_lock(rand_meth_lock);\n if (default_RAND_meth == NULL) {\n# ifndef OPENSSL_NO_ENGINE\n ENGINE *e;\n if ((e = ENGINE_get_default_RAND()) != NULL\n && (tmp_meth = ENGINE_get_RAND(e)) != NULL) {\n funct_ref = e;\n default_RAND_meth = tmp_meth;\n } else {\n ENGINE_finish(e);\n default_RAND_meth = &rand_meth;\n }\n# else\n default_RAND_meth = &rand_meth;\n# endif\n }\n tmp_meth = default_RAND_meth;\n CRYPTO_THREAD_unlock(rand_meth_lock);\n return tmp_meth;\n#endif\n}'] |
23,133 | 0 | https://github.com/openssl/openssl/blob/507db4c5313288d55eeb8434b0111201ba363b28/apps/speed.c/#L2318 | static int do_multi(int multi)
{
int n;
int fd[2];
int *fds;
static char sep[] = ":";
fds = malloc(sizeof(*fds) * multi);
for (n = 0; n < multi; ++n) {
if (pipe(fd) == -1) {
BIO_printf(bio_err, "pipe failure\n");
exit(1);
}
fflush(stdout);
(void)BIO_flush(bio_err);
if (fork()) {
close(fd[1]);
fds[n] = fd[0];
} else {
close(fd[0]);
close(1);
if (dup(fd[1]) == -1) {
BIO_printf(bio_err, "dup failed\n");
exit(1);
}
close(fd[1]);
mr = 1;
usertime = 0;
free(fds);
return 0;
}
printf("Forked child %d\n", n);
}
for (n = 0; n < multi; ++n) {
FILE *f;
char buf[1024];
char *p;
f = fdopen(fds[n], "r");
while (fgets(buf, sizeof buf, f)) {
p = strchr(buf, '\n');
if (p)
*p = '\0';
if (buf[0] != '+') {
BIO_printf(bio_err, "Don't understand line '%s' from child %d\n",
buf, n);
continue;
}
printf("Got: %s from %d\n", buf, n);
if (strncmp(buf, "+F:", 3) == 0) {
int alg;
int j;
p = buf + 3;
alg = atoi(sstrsep(&p, sep));
sstrsep(&p, sep);
for (j = 0; j < SIZE_NUM; ++j)
results[alg][j] += atof(sstrsep(&p, sep));
} else if (strncmp(buf, "+F2:", 4) == 0) {
int k;
double d;
p = buf + 4;
k = atoi(sstrsep(&p, sep));
sstrsep(&p, sep);
d = atof(sstrsep(&p, sep));
if (n)
rsa_results[k][0] = 1 / (1 / rsa_results[k][0] + 1 / d);
else
rsa_results[k][0] = d;
d = atof(sstrsep(&p, sep));
if (n)
rsa_results[k][1] = 1 / (1 / rsa_results[k][1] + 1 / d);
else
rsa_results[k][1] = d;
}
# ifndef OPENSSL_NO_DSA
else if (strncmp(buf, "+F3:", 4) == 0) {
int k;
double d;
p = buf + 4;
k = atoi(sstrsep(&p, sep));
sstrsep(&p, sep);
d = atof(sstrsep(&p, sep));
if (n)
dsa_results[k][0] = 1 / (1 / dsa_results[k][0] + 1 / d);
else
dsa_results[k][0] = d;
d = atof(sstrsep(&p, sep));
if (n)
dsa_results[k][1] = 1 / (1 / dsa_results[k][1] + 1 / d);
else
dsa_results[k][1] = d;
}
# endif
# ifndef OPENSSL_NO_EC
else if (strncmp(buf, "+F4:", 4) == 0) {
int k;
double d;
p = buf + 4;
k = atoi(sstrsep(&p, sep));
sstrsep(&p, sep);
d = atof(sstrsep(&p, sep));
if (n)
ecdsa_results[k][0] =
1 / (1 / ecdsa_results[k][0] + 1 / d);
else
ecdsa_results[k][0] = d;
d = atof(sstrsep(&p, sep));
if (n)
ecdsa_results[k][1] =
1 / (1 / ecdsa_results[k][1] + 1 / d);
else
ecdsa_results[k][1] = d;
}
# endif
# ifndef OPENSSL_NO_EC
else if (strncmp(buf, "+F5:", 4) == 0) {
int k;
double d;
p = buf + 4;
k = atoi(sstrsep(&p, sep));
sstrsep(&p, sep);
d = atof(sstrsep(&p, sep));
if (n)
ecdh_results[k][0] = 1 / (1 / ecdh_results[k][0] + 1 / d);
else
ecdh_results[k][0] = d;
}
# endif
else if (strncmp(buf, "+H:", 3) == 0) {
;
} else
BIO_printf(bio_err, "Unknown type '%s' from child %d\n", buf, n);
}
fclose(f);
}
free(fds);
return 1;
} | ['static int do_multi(int multi)\n{\n int n;\n int fd[2];\n int *fds;\n static char sep[] = ":";\n fds = malloc(sizeof(*fds) * multi);\n for (n = 0; n < multi; ++n) {\n if (pipe(fd) == -1) {\n BIO_printf(bio_err, "pipe failure\\n");\n exit(1);\n }\n fflush(stdout);\n (void)BIO_flush(bio_err);\n if (fork()) {\n close(fd[1]);\n fds[n] = fd[0];\n } else {\n close(fd[0]);\n close(1);\n if (dup(fd[1]) == -1) {\n BIO_printf(bio_err, "dup failed\\n");\n exit(1);\n }\n close(fd[1]);\n mr = 1;\n usertime = 0;\n free(fds);\n return 0;\n }\n printf("Forked child %d\\n", n);\n }\n for (n = 0; n < multi; ++n) {\n FILE *f;\n char buf[1024];\n char *p;\n f = fdopen(fds[n], "r");\n while (fgets(buf, sizeof buf, f)) {\n p = strchr(buf, \'\\n\');\n if (p)\n *p = \'\\0\';\n if (buf[0] != \'+\') {\n BIO_printf(bio_err, "Don\'t understand line \'%s\' from child %d\\n",\n buf, n);\n continue;\n }\n printf("Got: %s from %d\\n", buf, n);\n if (strncmp(buf, "+F:", 3) == 0) {\n int alg;\n int j;\n p = buf + 3;\n alg = atoi(sstrsep(&p, sep));\n sstrsep(&p, sep);\n for (j = 0; j < SIZE_NUM; ++j)\n results[alg][j] += atof(sstrsep(&p, sep));\n } else if (strncmp(buf, "+F2:", 4) == 0) {\n int k;\n double d;\n p = buf + 4;\n k = atoi(sstrsep(&p, sep));\n sstrsep(&p, sep);\n d = atof(sstrsep(&p, sep));\n if (n)\n rsa_results[k][0] = 1 / (1 / rsa_results[k][0] + 1 / d);\n else\n rsa_results[k][0] = d;\n d = atof(sstrsep(&p, sep));\n if (n)\n rsa_results[k][1] = 1 / (1 / rsa_results[k][1] + 1 / d);\n else\n rsa_results[k][1] = d;\n }\n# ifndef OPENSSL_NO_DSA\n else if (strncmp(buf, "+F3:", 4) == 0) {\n int k;\n double d;\n p = buf + 4;\n k = atoi(sstrsep(&p, sep));\n sstrsep(&p, sep);\n d = atof(sstrsep(&p, sep));\n if (n)\n dsa_results[k][0] = 1 / (1 / dsa_results[k][0] + 1 / d);\n else\n dsa_results[k][0] = d;\n d = atof(sstrsep(&p, sep));\n if (n)\n dsa_results[k][1] = 1 / (1 / dsa_results[k][1] + 1 / d);\n else\n dsa_results[k][1] = d;\n }\n# endif\n# ifndef OPENSSL_NO_EC\n else if (strncmp(buf, "+F4:", 4) == 0) {\n int k;\n double d;\n p = buf + 4;\n k = atoi(sstrsep(&p, sep));\n sstrsep(&p, sep);\n d = atof(sstrsep(&p, sep));\n if (n)\n ecdsa_results[k][0] =\n 1 / (1 / ecdsa_results[k][0] + 1 / d);\n else\n ecdsa_results[k][0] = d;\n d = atof(sstrsep(&p, sep));\n if (n)\n ecdsa_results[k][1] =\n 1 / (1 / ecdsa_results[k][1] + 1 / d);\n else\n ecdsa_results[k][1] = d;\n }\n# endif\n# ifndef OPENSSL_NO_EC\n else if (strncmp(buf, "+F5:", 4) == 0) {\n int k;\n double d;\n p = buf + 4;\n k = atoi(sstrsep(&p, sep));\n sstrsep(&p, sep);\n d = atof(sstrsep(&p, sep));\n if (n)\n ecdh_results[k][0] = 1 / (1 / ecdh_results[k][0] + 1 / d);\n else\n ecdh_results[k][0] = d;\n }\n# endif\n else if (strncmp(buf, "+H:", 3) == 0) {\n ;\n } else\n BIO_printf(bio_err, "Unknown type \'%s\' from child %d\\n", buf, n);\n }\n fclose(f);\n }\n free(fds);\n return 1;\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}'] |
23,134 | 0 | https://github.com/libav/libav/blob/f0319383436e1abc3fc1464fe4e5f4dc40db3419/cmdutils.c/#L142 | void parse_options(int argc, char **argv, const OptionDef *options,
void (* parse_arg_function)(const char*))
{
const char *opt, *arg;
int optindex, handleoptions=1;
const OptionDef *po;
optindex = 1;
while (optindex < argc) {
opt = argv[optindex++];
if (handleoptions && opt[0] == '-' && opt[1] != '\0') {
if (opt[1] == '-' && opt[2] == '\0') {
handleoptions = 0;
continue;
}
po= find_option(options, opt + 1);
if (!po->name)
po= find_option(options, "default");
if (!po->name) {
unknown_opt:
fprintf(stderr, "%s: unrecognized option '%s'\n", argv[0], opt);
exit(1);
}
arg = NULL;
if (po->flags & HAS_ARG) {
arg = argv[optindex++];
if (!arg) {
fprintf(stderr, "%s: missing argument for option '%s'\n", argv[0], opt);
exit(1);
}
}
if (po->flags & OPT_STRING) {
char *str;
str = av_strdup(arg);
*po->u.str_arg = str;
} else if (po->flags & OPT_BOOL) {
*po->u.int_arg = 1;
} else if (po->flags & OPT_INT) {
*po->u.int_arg = parse_number_or_die(opt+1, arg, OPT_INT64, INT_MIN, INT_MAX);
} else if (po->flags & OPT_INT64) {
*po->u.int64_arg = parse_number_or_die(opt+1, arg, OPT_INT64, INT64_MIN, INT64_MAX);
} else if (po->flags & OPT_FLOAT) {
*po->u.float_arg = parse_number_or_die(opt+1, arg, OPT_FLOAT, -1.0/0.0, 1.0/0.0);
} else if (po->flags & OPT_FUNC2) {
if(po->u.func2_arg(opt+1, arg)<0)
goto unknown_opt;
} else {
po->u.func_arg(arg);
}
if(po->flags & OPT_EXIT)
exit(0);
} else {
if (parse_arg_function)
parse_arg_function(opt);
}
}
} | ['void parse_options(int argc, char **argv, const OptionDef *options,\n void (* parse_arg_function)(const char*))\n{\n const char *opt, *arg;\n int optindex, handleoptions=1;\n const OptionDef *po;\n optindex = 1;\n while (optindex < argc) {\n opt = argv[optindex++];\n if (handleoptions && opt[0] == \'-\' && opt[1] != \'\\0\') {\n if (opt[1] == \'-\' && opt[2] == \'\\0\') {\n handleoptions = 0;\n continue;\n }\n po= find_option(options, opt + 1);\n if (!po->name)\n po= find_option(options, "default");\n if (!po->name) {\nunknown_opt:\n fprintf(stderr, "%s: unrecognized option \'%s\'\\n", argv[0], opt);\n exit(1);\n }\n arg = NULL;\n if (po->flags & HAS_ARG) {\n arg = argv[optindex++];\n if (!arg) {\n fprintf(stderr, "%s: missing argument for option \'%s\'\\n", argv[0], opt);\n exit(1);\n }\n }\n if (po->flags & OPT_STRING) {\n char *str;\n str = av_strdup(arg);\n *po->u.str_arg = str;\n } else if (po->flags & OPT_BOOL) {\n *po->u.int_arg = 1;\n } else if (po->flags & OPT_INT) {\n *po->u.int_arg = parse_number_or_die(opt+1, arg, OPT_INT64, INT_MIN, INT_MAX);\n } else if (po->flags & OPT_INT64) {\n *po->u.int64_arg = parse_number_or_die(opt+1, arg, OPT_INT64, INT64_MIN, INT64_MAX);\n } else if (po->flags & OPT_FLOAT) {\n *po->u.float_arg = parse_number_or_die(opt+1, arg, OPT_FLOAT, -1.0/0.0, 1.0/0.0);\n } else if (po->flags & OPT_FUNC2) {\n if(po->u.func2_arg(opt+1, arg)<0)\n goto unknown_opt;\n } else {\n po->u.func_arg(arg);\n }\n if(po->flags & OPT_EXIT)\n exit(0);\n } else {\n if (parse_arg_function)\n parse_arg_function(opt);\n }\n }\n}', 'double parse_number_or_die(const char *context, const char *numstr, int type, double min, double max)\n{\n char *tail;\n const char *error;\n double d = strtod(numstr, &tail);\n if (*tail)\n error= "Expected number for %s but found: %s\\n";\n else if (d < min || d > max)\n error= "The value for %s was %s which is not within %f - %f\\n";\n else if(type == OPT_INT64 && (int64_t)d != d)\n error= "Expected int64 for %s but found %s\\n";\n else\n return d;\n fprintf(stderr, error, context, numstr, min, max);\n exit(1);\n}'] |
23,135 | 0 | https://github.com/openssl/openssl/blob/04fac50045929e7078cad4835478dd7f16b6d4bd/crypto/lhash/lhash.c/#L240 | void *lh_delete(_LHASH *lh, const void *data)
{
unsigned long hash;
LHASH_NODE *nn,**rn;
void *ret;
lh->error=0;
rn=getrn(lh,data,&hash);
if (*rn == NULL)
{
lh->num_no_delete++;
return(NULL);
}
else
{
nn= *rn;
*rn=nn->next;
ret=nn->data;
OPENSSL_free(nn);
lh->num_delete++;
}
lh->num_items--;
if ((lh->num_nodes > MIN_NODES) &&
(lh->down_load >= (lh->num_items*LH_LOAD_MULT/lh->num_nodes)))
contract(lh);
return(ret);
} | ['int dtls1_connect(SSL *s)\n\t{\n\tBUF_MEM *buf=NULL;\n\tunsigned long Time=(unsigned long)time(NULL);\n\tvoid (*cb)(const SSL *ssl,int type,int val)=NULL;\n\tint ret= -1;\n\tint new_state,state,skip=0;\n#ifndef OPENSSL_NO_SCTP\n\tunsigned char sctpauthkey[64];\n\tchar labelbuffer[sizeof(DTLS1_SCTP_AUTH_LABEL)];\n#endif\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#ifndef OPENSSL_NO_SCTP\n\tBIO_ctrl(SSL_get_wbio(s), BIO_CTRL_DGRAM_SCTP_SET_IN_HANDSHAKE, s->in_handshake, NULL);\n#endif\n#ifndef OPENSSL_NO_HEARTBEATS\n\tif (s->tlsext_hb_pending)\n\t\t{\n\t\tdtls1_stop_timer(s);\n\t\ts->tlsext_hb_pending = 0;\n\t\ts->tlsext_hb_seq++;\n\t\t}\n#endif\n\tfor (;;)\n\t\t{\n\t\tstate=s->state;\n\t\tswitch(s->state)\n\t\t\t{\n\t\tcase SSL_ST_RENEGOTIATE:\n\t\t\ts->renegotiate=1;\n\t\t\ts->state=SSL_ST_CONNECT;\n\t\t\ts->ctx->stats.sess_connect_renegotiate++;\n\t\tcase SSL_ST_BEFORE:\n\t\tcase SSL_ST_CONNECT:\n\t\tcase SSL_ST_BEFORE|SSL_ST_CONNECT:\n\t\tcase SSL_ST_OK|SSL_ST_CONNECT:\n\t\t\ts->server=0;\n\t\t\tif (cb != NULL) cb(s,SSL_CB_HANDSHAKE_START,1);\n\t\t\tif ((s->version & 0xff00 ) != (DTLS1_VERSION & 0xff00) &&\n\t\t\t (s->version & 0xff00 ) != (DTLS1_BAD_VER & 0xff00))\n\t\t\t\t{\n\t\t\t\tSSLerr(SSL_F_DTLS1_CONNECT, ERR_R_INTERNAL_ERROR);\n\t\t\t\tret = -1;\n\t\t\t\tgoto end;\n\t\t\t\t}\n\t\t\ts->type=SSL_ST_CONNECT;\n\t\t\tif (s->init_buf == NULL)\n\t\t\t\t{\n\t\t\t\tif ((buf=BUF_MEM_new()) == NULL)\n\t\t\t\t\t{\n\t\t\t\t\tret= -1;\n\t\t\t\t\tgoto end;\n\t\t\t\t\t}\n\t\t\t\tif (!BUF_MEM_grow(buf,SSL3_RT_MAX_PLAIN_LENGTH))\n\t\t\t\t\t{\n\t\t\t\t\tret= -1;\n\t\t\t\t\tgoto end;\n\t\t\t\t\t}\n\t\t\t\ts->init_buf=buf;\n\t\t\t\tbuf=NULL;\n\t\t\t\t}\n\t\t\tif (!ssl3_setup_buffers(s)) { ret= -1; goto end; }\n\t\t\tif (!ssl_init_wbio_buffer(s,0)) { ret= -1; goto end; }\n\t\t\ts->state=SSL3_ST_CW_CLNT_HELLO_A;\n\t\t\ts->ctx->stats.sess_connect++;\n\t\t\ts->init_num=0;\n\t\t\tmemset(s->s3->client_random,0,sizeof(s->s3->client_random));\n\t\t\ts->d1->send_cookie = 0;\n\t\t\ts->hit = 0;\n\t\t\tbreak;\n#ifndef OPENSSL_NO_SCTP\n\t\tcase DTLS1_SCTP_ST_CR_READ_SOCK:\n\t\t\tif (BIO_dgram_sctp_msg_waiting(SSL_get_rbio(s)))\n\t\t\t{\n\t\t\t\ts->s3->in_read_app_data=2;\n\t\t\t\ts->rwstate=SSL_READING;\n\t\t\t\tBIO_clear_retry_flags(SSL_get_rbio(s));\n\t\t\t\tBIO_set_retry_read(SSL_get_rbio(s));\n\t\t\t\tret = -1;\n\t\t\t\tgoto end;\n\t\t\t}\n\t\t\ts->state=s->s3->tmp.next_state;\n\t\t\tbreak;\n\t\tcase DTLS1_SCTP_ST_CW_WRITE_SOCK:\n\t\t\tret = BIO_dgram_sctp_wait_for_dry(SSL_get_wbio(s));\n\t\t\tif (ret < 0) goto end;\n\t\t\tif (ret == 0)\n\t\t\t{\n\t\t\t\ts->s3->in_read_app_data=2;\n\t\t\t\ts->rwstate=SSL_READING;\n\t\t\t\tBIO_clear_retry_flags(SSL_get_rbio(s));\n\t\t\t\tBIO_set_retry_read(SSL_get_rbio(s));\n\t\t\t\tret = -1;\n\t\t\t\tgoto end;\n\t\t\t}\n\t\t\ts->state=s->d1->next_state;\n\t\t\tbreak;\n#endif\n\t\tcase SSL3_ST_CW_CLNT_HELLO_A:\n\t\tcase SSL3_ST_CW_CLNT_HELLO_B:\n\t\t\ts->shutdown=0;\n\t\t\tssl3_init_finished_mac(s);\n\t\t\tdtls1_start_timer(s);\n\t\t\tret=ssl3_client_hello(s);\n\t\t\tif (ret <= 0) goto end;\n\t\t\tif ( s->d1->send_cookie)\n\t\t\t\t{\n\t\t\t\ts->state=SSL3_ST_CW_FLUSH;\n\t\t\t\ts->s3->tmp.next_state=SSL3_ST_CR_SRVR_HELLO_A;\n\t\t\t\t}\n\t\t\telse\n\t\t\t\ts->state=SSL3_ST_CR_SRVR_HELLO_A;\n\t\t\ts->init_num=0;\n#ifndef OPENSSL_NO_SCTP\n\t\t\tif (!BIO_dgram_is_sctp(SSL_get_wbio(s)))\n\t\t\t\t{\n#endif\n\t\t\t\tif (s->bbio != s->wbio)\n\t\t\t\t\ts->wbio=BIO_push(s->bbio,s->wbio);\n#ifndef OPENSSL_NO_SCTP\n\t\t\t\t}\n#endif\n\t\t\tbreak;\n\t\tcase SSL3_ST_CR_SRVR_HELLO_A:\n\t\tcase SSL3_ST_CR_SRVR_HELLO_B:\n\t\t\tret=ssl3_get_server_hello(s);\n\t\t\tif (ret <= 0) goto end;\n\t\t\telse\n\t\t\t\t{\n\t\t\t\tif (s->hit)\n\t\t\t\t\t{\n#ifndef OPENSSL_NO_SCTP\n\t\t\t\t\tsnprintf((char*) labelbuffer, sizeof(DTLS1_SCTP_AUTH_LABEL),\n\t\t\t\t\t DTLS1_SCTP_AUTH_LABEL);\n\t\t\t\t\tSSL_export_keying_material(s, sctpauthkey,\n\t\t\t\t\t sizeof(sctpauthkey), labelbuffer,\n\t\t\t\t\t sizeof(labelbuffer), NULL, 0, 0);\n\t\t\t\t\tBIO_ctrl(SSL_get_wbio(s), BIO_CTRL_DGRAM_SCTP_ADD_AUTH_KEY,\n\t\t\t\t\t\t\t sizeof(sctpauthkey), sctpauthkey);\n#endif\n\t\t\t\t\ts->state=SSL3_ST_CR_FINISHED_A;\n\t\t\t\t\t}\n\t\t\t\telse\n\t\t\t\t\ts->state=DTLS1_ST_CR_HELLO_VERIFY_REQUEST_A;\n\t\t\t\t}\n\t\t\ts->init_num=0;\n\t\t\tbreak;\n\t\tcase DTLS1_ST_CR_HELLO_VERIFY_REQUEST_A:\n\t\tcase DTLS1_ST_CR_HELLO_VERIFY_REQUEST_B:\n\t\t\tret = dtls1_get_hello_verify(s);\n\t\t\tif ( ret <= 0)\n\t\t\t\tgoto end;\n\t\t\tdtls1_stop_timer(s);\n\t\t\tif ( s->d1->send_cookie)\n\t\t\t\ts->state=SSL3_ST_CW_CLNT_HELLO_A;\n\t\t\telse\n\t\t\t\ts->state = SSL3_ST_CR_CERT_A;\n\t\t\ts->init_num = 0;\n\t\t\tbreak;\n\t\tcase SSL3_ST_CR_CERT_A:\n\t\tcase SSL3_ST_CR_CERT_B:\n#ifndef OPENSSL_NO_TLSEXT\n\t\t\tret=ssl3_check_finished(s);\n\t\t\tif (ret <= 0) goto end;\n\t\t\tif (ret == 2)\n\t\t\t\t{\n\t\t\t\ts->hit = 1;\n\t\t\t\tif (s->tlsext_ticket_expected)\n\t\t\t\t\ts->state=SSL3_ST_CR_SESSION_TICKET_A;\n\t\t\t\telse\n\t\t\t\t\ts->state=SSL3_ST_CR_FINISHED_A;\n\t\t\t\ts->init_num=0;\n\t\t\t\tbreak;\n\t\t\t\t}\n#endif\n\t\t\tif (!(s->s3->tmp.new_cipher->algorithm_auth & SSL_aNULL) &&\n\t\t\t !(s->s3->tmp.new_cipher->algorithm_mkey & SSL_kPSK))\n\t\t\t\t{\n\t\t\t\tret=ssl3_get_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_CR_CERT_STATUS_A;\n\t\t\t\telse\n\t\t\t\t\ts->state=SSL3_ST_CR_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_CR_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_CR_KEY_EXCH_A;\n#endif\n\t\t\ts->init_num=0;\n\t\t\tbreak;\n\t\tcase SSL3_ST_CR_KEY_EXCH_A:\n\t\tcase SSL3_ST_CR_KEY_EXCH_B:\n\t\t\tret=ssl3_get_key_exchange(s);\n\t\t\tif (ret <= 0) goto end;\n\t\t\ts->state=SSL3_ST_CR_CERT_REQ_A;\n\t\t\ts->init_num=0;\n\t\t\tif (!ssl3_check_cert_and_algorithm(s))\n\t\t\t\t{\n\t\t\t\tret= -1;\n\t\t\t\tgoto end;\n\t\t\t\t}\n\t\t\tbreak;\n\t\tcase SSL3_ST_CR_CERT_REQ_A:\n\t\tcase SSL3_ST_CR_CERT_REQ_B:\n\t\t\tret=ssl3_get_certificate_request(s);\n\t\t\tif (ret <= 0) goto end;\n\t\t\ts->state=SSL3_ST_CR_SRVR_DONE_A;\n\t\t\ts->init_num=0;\n\t\t\tbreak;\n\t\tcase SSL3_ST_CR_SRVR_DONE_A:\n\t\tcase SSL3_ST_CR_SRVR_DONE_B:\n\t\t\tret=ssl3_get_server_done(s);\n\t\t\tif (ret <= 0) goto end;\n\t\t\tdtls1_stop_timer(s);\n\t\t\tif (s->s3->tmp.cert_req)\n\t\t\t\ts->s3->tmp.next_state=SSL3_ST_CW_CERT_A;\n\t\t\telse\n\t\t\t\ts->s3->tmp.next_state=SSL3_ST_CW_KEY_EXCH_A;\n\t\t\ts->init_num=0;\n#ifndef OPENSSL_NO_SCTP\n\t\t\tif (BIO_dgram_is_sctp(SSL_get_wbio(s)) &&\n\t\t\t state == SSL_ST_RENEGOTIATE)\n\t\t\t\ts->state=DTLS1_SCTP_ST_CR_READ_SOCK;\n\t\t\telse\n#endif\n\t\t\ts->state=s->s3->tmp.next_state;\n\t\t\tbreak;\n\t\tcase SSL3_ST_CW_CERT_A:\n\t\tcase SSL3_ST_CW_CERT_B:\n\t\tcase SSL3_ST_CW_CERT_C:\n\t\tcase SSL3_ST_CW_CERT_D:\n\t\t\tdtls1_start_timer(s);\n\t\t\tret=ssl3_send_client_certificate(s);\n\t\t\tif (ret <= 0) goto end;\n\t\t\ts->state=SSL3_ST_CW_KEY_EXCH_A;\n\t\t\ts->init_num=0;\n\t\t\tbreak;\n\t\tcase SSL3_ST_CW_KEY_EXCH_A:\n\t\tcase SSL3_ST_CW_KEY_EXCH_B:\n\t\t\tdtls1_start_timer(s);\n\t\t\tret=ssl3_send_client_key_exchange(s);\n\t\t\tif (ret <= 0) goto end;\n#ifndef OPENSSL_NO_SCTP\n\t\t\tsnprintf((char*) labelbuffer, sizeof(DTLS1_SCTP_AUTH_LABEL),\n\t\t\t DTLS1_SCTP_AUTH_LABEL);\n\t\t\tSSL_export_keying_material(s, sctpauthkey,\n\t\t\t sizeof(sctpauthkey), labelbuffer,\n\t\t\t sizeof(labelbuffer), NULL, 0, 0);\n\t\t\tBIO_ctrl(SSL_get_wbio(s), BIO_CTRL_DGRAM_SCTP_ADD_AUTH_KEY,\n\t\t\t\t\t sizeof(sctpauthkey), sctpauthkey);\n#endif\n\t\t\tif (s->s3->tmp.cert_req == 1)\n\t\t\t\t{\n\t\t\t\ts->state=SSL3_ST_CW_CERT_VRFY_A;\n\t\t\t\t}\n\t\t\telse\n\t\t\t\t{\n#ifndef OPENSSL_NO_SCTP\n\t\t\t\tif (BIO_dgram_is_sctp(SSL_get_wbio(s)))\n\t\t\t\t\t{\n\t\t\t\t\ts->d1->next_state=SSL3_ST_CW_CHANGE_A;\n\t\t\t\t\ts->state=DTLS1_SCTP_ST_CW_WRITE_SOCK;\n\t\t\t\t\t}\n\t\t\t\telse\n#endif\n\t\t\t\t\ts->state=SSL3_ST_CW_CHANGE_A;\n\t\t\t\ts->s3->change_cipher_spec=0;\n\t\t\t\t}\n\t\t\ts->init_num=0;\n\t\t\tbreak;\n\t\tcase SSL3_ST_CW_CERT_VRFY_A:\n\t\tcase SSL3_ST_CW_CERT_VRFY_B:\n\t\t\tdtls1_start_timer(s);\n\t\t\tret=ssl3_send_client_verify(s);\n\t\t\tif (ret <= 0) goto end;\n#ifndef OPENSSL_NO_SCTP\n\t\t\tif (BIO_dgram_is_sctp(SSL_get_wbio(s)))\n\t\t\t{\n\t\t\t\ts->d1->next_state=SSL3_ST_CW_CHANGE_A;\n\t\t\t\ts->state=DTLS1_SCTP_ST_CW_WRITE_SOCK;\n\t\t\t}\n\t\t\telse\n#endif\n\t\t\t\ts->state=SSL3_ST_CW_CHANGE_A;\n\t\t\ts->init_num=0;\n\t\t\ts->s3->change_cipher_spec=0;\n\t\t\tbreak;\n\t\tcase SSL3_ST_CW_CHANGE_A:\n\t\tcase SSL3_ST_CW_CHANGE_B:\n\t\t\tif (!s->hit)\n\t\t\t\tdtls1_start_timer(s);\n\t\t\tret=dtls1_send_change_cipher_spec(s,\n\t\t\t\tSSL3_ST_CW_CHANGE_A,SSL3_ST_CW_CHANGE_B);\n\t\t\tif (ret <= 0) goto end;\n#ifndef OPENSSL_NO_SCTP\n\t\t\tBIO_ctrl(SSL_get_wbio(s), BIO_CTRL_DGRAM_SCTP_NEXT_AUTH_KEY, 0, NULL);\n#endif\n\t\t\ts->state=SSL3_ST_CW_FINISHED_A;\n\t\t\ts->init_num=0;\n\t\t\ts->session->cipher=s->s3->tmp.new_cipher;\n#ifdef OPENSSL_NO_COMP\n\t\t\ts->session->compress_meth=0;\n#else\n\t\t\tif (s->s3->tmp.new_compression == NULL)\n\t\t\t\ts->session->compress_meth=0;\n\t\t\telse\n\t\t\t\ts->session->compress_meth=\n\t\t\t\t\ts->s3->tmp.new_compression->id;\n#endif\n\t\t\tif (!s->method->ssl3_enc->setup_key_block(s))\n\t\t\t\t{\n\t\t\t\tret= -1;\n\t\t\t\tgoto end;\n\t\t\t\t}\n\t\t\tif (!s->method->ssl3_enc->change_cipher_state(s,\n\t\t\t\tSSL3_CHANGE_CIPHER_CLIENT_WRITE))\n\t\t\t\t{\n\t\t\t\tret= -1;\n\t\t\t\tgoto end;\n\t\t\t\t}\n\t\t\tdtls1_reset_seq_numbers(s, SSL3_CC_WRITE);\n\t\t\tbreak;\n\t\tcase SSL3_ST_CW_FINISHED_A:\n\t\tcase SSL3_ST_CW_FINISHED_B:\n\t\t\tif (!s->hit)\n\t\t\t\tdtls1_start_timer(s);\n\t\t\tret=ssl3_send_finished(s,\n\t\t\t\tSSL3_ST_CW_FINISHED_A,SSL3_ST_CW_FINISHED_B,\n\t\t\t\ts->method->ssl3_enc->client_finished_label,\n\t\t\t\ts->method->ssl3_enc->client_finished_label_len);\n\t\t\tif (ret <= 0) goto end;\n\t\t\ts->state=SSL3_ST_CW_FLUSH;\n\t\t\ts->s3->flags&= ~SSL3_FLAGS_POP_BUFFER;\n\t\t\tif (s->hit)\n\t\t\t\t{\n\t\t\t\ts->s3->tmp.next_state=SSL_ST_OK;\n#ifndef OPENSSL_NO_SCTP\n\t\t\t\tif (BIO_dgram_is_sctp(SSL_get_wbio(s)))\n\t\t\t\t\t{\n\t\t\t\t\t\ts->d1->next_state = s->s3->tmp.next_state;\n\t\t\t\t\t\ts->s3->tmp.next_state=DTLS1_SCTP_ST_CW_WRITE_SOCK;\n\t\t\t\t\t}\n#endif\n\t\t\t\tif (s->s3->flags & SSL3_FLAGS_DELAY_CLIENT_FINISHED)\n\t\t\t\t\t{\n\t\t\t\t\ts->state=SSL_ST_OK;\n#ifndef OPENSSL_NO_SCTP\n\t\t\t\t\tif (BIO_dgram_is_sctp(SSL_get_wbio(s)))\n\t\t\t\t\t\t{\n\t\t\t\t\t\t\ts->d1->next_state = SSL_ST_OK;\n\t\t\t\t\t\t\ts->state=DTLS1_SCTP_ST_CW_WRITE_SOCK;\n\t\t\t\t\t\t}\n#endif\n\t\t\t\t\ts->s3->flags|=SSL3_FLAGS_POP_BUFFER;\n\t\t\t\t\ts->s3->delay_buf_pop_ret=0;\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\telse\n\t\t\t\t{\n#ifndef OPENSSL_NO_TLSEXT\n\t\t\t\tif (s->tlsext_ticket_expected)\n\t\t\t\t\ts->s3->tmp.next_state=SSL3_ST_CR_SESSION_TICKET_A;\n\t\t\t\telse\n#endif\n\t\t\t\ts->s3->tmp.next_state=SSL3_ST_CR_FINISHED_A;\n\t\t\t\t}\n\t\t\ts->init_num=0;\n\t\t\tbreak;\n#ifndef OPENSSL_NO_TLSEXT\n\t\tcase SSL3_ST_CR_SESSION_TICKET_A:\n\t\tcase SSL3_ST_CR_SESSION_TICKET_B:\n\t\t\tret=ssl3_get_new_session_ticket(s);\n\t\t\tif (ret <= 0) goto end;\n\t\t\ts->state=SSL3_ST_CR_FINISHED_A;\n\t\t\ts->init_num=0;\n\t\tbreak;\n\t\tcase SSL3_ST_CR_CERT_STATUS_A:\n\t\tcase SSL3_ST_CR_CERT_STATUS_B:\n\t\t\tret=ssl3_get_cert_status(s);\n\t\t\tif (ret <= 0) goto end;\n\t\t\ts->state=SSL3_ST_CR_KEY_EXCH_A;\n\t\t\ts->init_num=0;\n\t\tbreak;\n#endif\n\t\tcase SSL3_ST_CR_FINISHED_A:\n\t\tcase SSL3_ST_CR_FINISHED_B:\n\t\t\ts->d1->change_cipher_spec_ok = 1;\n\t\t\tret=ssl3_get_finished(s,SSL3_ST_CR_FINISHED_A,\n\t\t\t\tSSL3_ST_CR_FINISHED_B);\n\t\t\tif (ret <= 0) goto end;\n\t\t\tdtls1_stop_timer(s);\n\t\t\tif (s->hit)\n\t\t\t\ts->state=SSL3_ST_CW_CHANGE_A;\n\t\t\telse\n\t\t\t\ts->state=SSL_ST_OK;\n#ifndef OPENSSL_NO_SCTP\n\t\t\tif (BIO_dgram_is_sctp(SSL_get_wbio(s)) &&\n\t\t\t\tstate == SSL_ST_RENEGOTIATE)\n\t\t\t\t{\n\t\t\t\ts->d1->next_state=s->state;\n\t\t\t\ts->state=DTLS1_SCTP_ST_CW_WRITE_SOCK;\n\t\t\t\t}\n#endif\n\t\t\ts->init_num=0;\n\t\t\tbreak;\n\t\tcase SSL3_ST_CW_FLUSH:\n\t\t\ts->rwstate=SSL_WRITING;\n\t\t\tif (BIO_flush(s->wbio) <= 0)\n\t\t\t\t{\n\t\t\t\tif (!BIO_should_retry(s->wbio))\n\t\t\t\t\t{\n\t\t\t\t\ts->rwstate=SSL_NOTHING;\n\t\t\t\t\ts->state=s->s3->tmp.next_state;\n\t\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->rwstate=SSL_NOTHING;\n\t\t\ts->state=s->s3->tmp.next_state;\n\t\t\tbreak;\n\t\tcase SSL_ST_OK:\n\t\t\tssl3_cleanup_key_block(s);\n#if 0\n\t\t\tif (s->init_buf != NULL)\n\t\t\t\t{\n\t\t\t\tBUF_MEM_free(s->init_buf);\n\t\t\t\ts->init_buf=NULL;\n\t\t\t\t}\n#endif\n\t\t\tif (!(s->s3->flags & SSL3_FLAGS_POP_BUFFER))\n\t\t\t\tssl_free_wbio_buffer(s);\n\t\t\ts->init_num=0;\n\t\t\ts->renegotiate=0;\n\t\t\ts->new_session=0;\n\t\t\tssl_update_cache(s,SSL_SESS_CACHE_CLIENT);\n\t\t\tif (s->hit) s->ctx->stats.sess_hit++;\n\t\t\tret=1;\n\t\t\ts->handshake_func=dtls1_connect;\n\t\t\ts->ctx->stats.sess_connect_good++;\n\t\t\tif (cb != NULL) cb(s,SSL_CB_HANDSHAKE_DONE,1);\n\t\t\ts->d1->handshake_read_seq = 0;\n\t\t\ts->d1->next_handshake_write_seq = 0;\n\t\t\tgoto end;\n\t\tdefault:\n\t\t\tSSLerr(SSL_F_DTLS1_CONNECT,SSL_R_UNKNOWN_STATE);\n\t\t\tret= -1;\n\t\t\tgoto end;\n\t\t\t}\n\t\tif (!s->s3->tmp.reuse_message && !skip)\n\t\t\t{\n\t\t\tif (s->debug)\n\t\t\t\t{\n\t\t\t\tif ((ret=BIO_flush(s->wbio)) <= 0)\n\t\t\t\t\tgoto end;\n\t\t\t\t}\n\t\t\tif ((cb != NULL) && (s->state != state))\n\t\t\t\t{\n\t\t\t\tnew_state=s->state;\n\t\t\t\ts->state=state;\n\t\t\t\tcb(s,SSL_CB_CONNECT_LOOP,1);\n\t\t\t\ts->state=new_state;\n\t\t\t\t}\n\t\t\t}\n\t\tskip=0;\n\t\t}\nend:\n\ts->in_handshake--;\n#ifndef OPENSSL_NO_SCTP\n\tBIO_ctrl(SSL_get_wbio(s), BIO_CTRL_DGRAM_SCTP_SET_IN_HANDSHAKE, s->in_handshake, NULL);\n#endif\n\tif (buf != NULL)\n\t\tBUF_MEM_free(buf);\n\tif (cb != NULL)\n\t\tcb(s,SSL_CB_CONNECT_EXIT,ret);\n\treturn(ret);\n\t}', 'int ssl3_get_server_hello(SSL *s)\n\t{\n\tSTACK_OF(SSL_CIPHER) *sk;\n\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\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\tif ( s->s3->tmp.message_type == DTLS1_MT_HELLO_VERIFY_REQUEST)\n\t\t\t{\n\t\t\tif ( s->d1->send_cookie == 0)\n\t\t\t\t{\n\t\t\t\ts->s3->tmp.reuse_message = 1;\n\t\t\t\treturn 1;\n\t\t\t\t}\n\t\t\telse\n\t\t\t\t{\n\t\t\t\tal=SSL_AD_UNEXPECTED_MESSAGE;\n\t\t\t\tSSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_BAD_MESSAGE_TYPE);\n\t\t\t\tgoto f_err;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\tif ( s->s3->tmp.message_type != SSL3_MT_SERVER_HELLO)\n\t\t{\n\t\tal=SSL_AD_UNEXPECTED_MESSAGE;\n\t\tSSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_BAD_MESSAGE_TYPE);\n\t\tgoto f_err;\n\t\t}\n\td=p=(unsigned char *)s->init_msg;\n\tif ((p[0] != (s->version>>8)) || (p[1] != (s->version&0xff)))\n\t\t{\n\t\tSSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_WRONG_SSL_VERSION);\n\t\ts->version=(s->version&0xff00)|p[1];\n\t\tal=SSL_AD_PROTOCOL_VERSION;\n\t\tgoto f_err;\n\t\t}\n\tp+=2;\n\tmemcpy(s->s3->server_random,p,SSL3_RANDOM_SIZE);\n\tp+=SSL3_RANDOM_SIZE;\n\tj= *(p++);\n\tif ((j > sizeof s->session->session_id) || (j > SSL3_SESSION_ID_SIZE))\n\t\t{\n\t\tal=SSL_AD_ILLEGAL_PARAMETER;\n\t\tSSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_SSL3_SESSION_ID_TOO_LONG);\n\t\tgoto f_err;\n\t\t}\n#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\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->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 (c->algorithm_ssl & ct->mask_ssl ||\n\t\tc->algorithm_mkey & ct->mask_k ||\n\t\tc->algorithm_auth & ct->mask_a)\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 (s->options & SSL_OP_NO_COMPRESSION)\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 ssl_parse_serverhello_tlsext(SSL *s, unsigned char **p, unsigned char *d, int n)\n\t{\n\tint al = -1;\n\tif (s->version < SSL3_VERSION)\n\t\treturn 1;\n\tif (ssl_scan_serverhello_tlsext(s, p, d, n, &al) <= 0)\n\t\t{\n\t\tssl3_send_alert(s,SSL3_AL_FATAL,al);\n\t\treturn 0;\n\t\t}\n\tif (ssl_check_serverhello_tlsext(s) <= 0)\n\t\t{\n\t\tSSLerr(SSL_F_SSL_PARSE_SERVERHELLO_TLSEXT,SSL_R_SERVERHELLO_TLSEXT);\n\t\treturn 0;\n\t\t}\n\treturn 1;\n}', '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 == 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\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}'] |
23,136 | 0 | https://github.com/libav/libav/blob/bb4afa13dd3264832bc379bbfefe1db8cf4f0e40/libavformat/rtsp.c/#L1666 | static int sdp_read_header(AVFormatContext *s, AVFormatParameters *ap)
{
RTSPState *rt = s->priv_data;
RTSPStream *rtsp_st;
int size, i, err;
char *content;
char url[1024];
if (!ff_network_init())
return AVERROR(EIO);
content = av_malloc(SDP_MAX_SIZE);
size = get_buffer(s->pb, content, SDP_MAX_SIZE - 1);
if (size <= 0) {
av_free(content);
return AVERROR_INVALIDDATA;
}
content[size] ='\0';
ff_sdp_parse(s, content);
av_free(content);
for (i = 0; i < rt->nb_rtsp_streams; i++) {
char namebuf[50];
rtsp_st = rt->rtsp_streams[i];
getnameinfo((struct sockaddr*) &rtsp_st->sdp_ip, sizeof(rtsp_st->sdp_ip),
namebuf, sizeof(namebuf), NULL, 0, NI_NUMERICHOST);
ff_url_join(url, sizeof(url), "rtp", NULL,
namebuf, rtsp_st->sdp_port,
"?localport=%d&ttl=%d", rtsp_st->sdp_port,
rtsp_st->sdp_ttl);
if (url_open(&rtsp_st->rtp_handle, url, URL_RDWR) < 0) {
err = AVERROR_INVALIDDATA;
goto fail;
}
if ((err = rtsp_open_transport_ctx(s, rtsp_st)))
goto fail;
}
return 0;
fail:
ff_rtsp_close_streams(s);
ff_network_close();
return err;
} | ['static int sdp_read_header(AVFormatContext *s, AVFormatParameters *ap)\n{\n RTSPState *rt = s->priv_data;\n RTSPStream *rtsp_st;\n int size, i, err;\n char *content;\n char url[1024];\n if (!ff_network_init())\n return AVERROR(EIO);\n content = av_malloc(SDP_MAX_SIZE);\n size = get_buffer(s->pb, content, SDP_MAX_SIZE - 1);\n if (size <= 0) {\n av_free(content);\n return AVERROR_INVALIDDATA;\n }\n content[size] =\'\\0\';\n ff_sdp_parse(s, content);\n av_free(content);\n for (i = 0; i < rt->nb_rtsp_streams; i++) {\n char namebuf[50];\n rtsp_st = rt->rtsp_streams[i];\n getnameinfo((struct sockaddr*) &rtsp_st->sdp_ip, sizeof(rtsp_st->sdp_ip),\n namebuf, sizeof(namebuf), NULL, 0, NI_NUMERICHOST);\n ff_url_join(url, sizeof(url), "rtp", NULL,\n namebuf, rtsp_st->sdp_port,\n "?localport=%d&ttl=%d", rtsp_st->sdp_port,\n rtsp_st->sdp_ttl);\n if (url_open(&rtsp_st->rtp_handle, url, URL_RDWR) < 0) {\n err = AVERROR_INVALIDDATA;\n goto fail;\n }\n if ((err = rtsp_open_transport_ctx(s, rtsp_st)))\n goto fail;\n }\n return 0;\nfail:\n ff_rtsp_close_streams(s);\n ff_network_close();\n return err;\n}', 'static inline int ff_network_init(void)\n{\n#if HAVE_WINSOCK2_H\n WSADATA wsaData;\n if (WSAStartup(MAKEWORD(1,1), &wsaData))\n return 0;\n#endif\n return 1;\n}', 'void *av_malloc(FF_INTERNAL_MEM_TYPE size)\n{\n void *ptr = NULL;\n#if CONFIG_MEMALIGN_HACK\n long diff;\n#endif\n if(size > (INT_MAX-16) )\n return NULL;\n#if CONFIG_MEMALIGN_HACK\n ptr = malloc(size+16);\n if(!ptr)\n return ptr;\n diff= ((-(long)ptr - 1)&15) + 1;\n ptr = (char*)ptr + diff;\n ((char*)ptr)[-1]= diff;\n#elif HAVE_POSIX_MEMALIGN\n if (posix_memalign(&ptr,16,size))\n ptr = NULL;\n#elif HAVE_MEMALIGN\n ptr = memalign(16,size);\n#else\n ptr = malloc(size);\n#endif\n return ptr;\n}'] |
23,137 | 0 | https://github.com/libav/libav/blob/60728e8bab8d2a5f6bbb4baa7d53142dbc6047ed/libavcodec/mpegvideo.c/#L1095 | static int init_context_frame(MpegEncContext *s)
{
int y_size, c_size, yc_size, i, mb_array_size, mv_table_size, x, y;
s->mb_width = (s->width + 15) / 16;
s->mb_stride = s->mb_width + 1;
s->b8_stride = s->mb_width * 2 + 1;
s->b4_stride = s->mb_width * 4 + 1;
mb_array_size = s->mb_height * s->mb_stride;
mv_table_size = (s->mb_height + 2) * s->mb_stride + 1;
s->h_edge_pos = s->mb_width * 16;
s->v_edge_pos = s->mb_height * 16;
s->mb_num = s->mb_width * s->mb_height;
s->block_wrap[0] =
s->block_wrap[1] =
s->block_wrap[2] =
s->block_wrap[3] = s->b8_stride;
s->block_wrap[4] =
s->block_wrap[5] = s->mb_stride;
y_size = s->b8_stride * (2 * s->mb_height + 1);
c_size = s->mb_stride * (s->mb_height + 1);
yc_size = y_size + 2 * c_size;
FF_ALLOCZ_OR_GOTO(s->avctx, s->mb_index2xy, (s->mb_num + 1) * sizeof(int),
fail);
for (y = 0; y < s->mb_height; y++)
for (x = 0; x < s->mb_width; x++)
s->mb_index2xy[x + y * s->mb_width] = x + y * s->mb_stride;
s->mb_index2xy[s->mb_height * s->mb_width] =
(s->mb_height - 1) * s->mb_stride + s->mb_width;
if (s->encoding) {
FF_ALLOCZ_OR_GOTO(s->avctx, s->p_mv_table_base,
mv_table_size * 2 * sizeof(int16_t), fail);
FF_ALLOCZ_OR_GOTO(s->avctx, s->b_forw_mv_table_base,
mv_table_size * 2 * sizeof(int16_t), fail);
FF_ALLOCZ_OR_GOTO(s->avctx, s->b_back_mv_table_base,
mv_table_size * 2 * sizeof(int16_t), fail);
FF_ALLOCZ_OR_GOTO(s->avctx, s->b_bidir_forw_mv_table_base,
mv_table_size * 2 * sizeof(int16_t), fail);
FF_ALLOCZ_OR_GOTO(s->avctx, s->b_bidir_back_mv_table_base,
mv_table_size * 2 * sizeof(int16_t), fail);
FF_ALLOCZ_OR_GOTO(s->avctx, s->b_direct_mv_table_base,
mv_table_size * 2 * sizeof(int16_t), fail);
s->p_mv_table = s->p_mv_table_base + s->mb_stride + 1;
s->b_forw_mv_table = s->b_forw_mv_table_base + s->mb_stride + 1;
s->b_back_mv_table = s->b_back_mv_table_base + s->mb_stride + 1;
s->b_bidir_forw_mv_table = s->b_bidir_forw_mv_table_base +
s->mb_stride + 1;
s->b_bidir_back_mv_table = s->b_bidir_back_mv_table_base +
s->mb_stride + 1;
s->b_direct_mv_table = s->b_direct_mv_table_base + s->mb_stride + 1;
FF_ALLOCZ_OR_GOTO(s->avctx, s->mb_type, mb_array_size *
sizeof(uint16_t), fail);
FF_ALLOCZ_OR_GOTO(s->avctx, s->lambda_table, mb_array_size *
sizeof(int), fail);
FF_ALLOC_OR_GOTO(s->avctx, s->cplx_tab,
mb_array_size * sizeof(float), fail);
FF_ALLOC_OR_GOTO(s->avctx, s->bits_tab,
mb_array_size * sizeof(float), fail);
}
if (s->codec_id == AV_CODEC_ID_MPEG4 ||
(s->flags & CODEC_FLAG_INTERLACED_ME)) {
for (i = 0; i < 2; i++) {
int j, k;
for (j = 0; j < 2; j++) {
for (k = 0; k < 2; k++) {
FF_ALLOCZ_OR_GOTO(s->avctx,
s->b_field_mv_table_base[i][j][k],
mv_table_size * 2 * sizeof(int16_t),
fail);
s->b_field_mv_table[i][j][k] = s->b_field_mv_table_base[i][j][k] +
s->mb_stride + 1;
}
FF_ALLOCZ_OR_GOTO(s->avctx, s->b_field_select_table [i][j],
mb_array_size * 2 * sizeof(uint8_t), fail);
FF_ALLOCZ_OR_GOTO(s->avctx, s->p_field_mv_table_base[i][j],
mv_table_size * 2 * sizeof(int16_t), fail);
s->p_field_mv_table[i][j] = s->p_field_mv_table_base[i][j]
+ s->mb_stride + 1;
}
FF_ALLOCZ_OR_GOTO(s->avctx, s->p_field_select_table[i],
mb_array_size * 2 * sizeof(uint8_t), fail);
}
}
if (s->out_format == FMT_H263) {
FF_ALLOCZ_OR_GOTO(s->avctx, s->coded_block_base, y_size, fail);
s->coded_block = s->coded_block_base + s->b8_stride + 1;
FF_ALLOCZ_OR_GOTO(s->avctx, s->cbp_table,
mb_array_size * sizeof(uint8_t), fail);
FF_ALLOCZ_OR_GOTO(s->avctx, s->pred_dir_table,
mb_array_size * sizeof(uint8_t), fail);
}
if (s->h263_pred || s->h263_plus || !s->encoding) {
FF_ALLOCZ_OR_GOTO(s->avctx, s->dc_val_base,
yc_size * sizeof(int16_t), fail);
s->dc_val[0] = s->dc_val_base + s->b8_stride + 1;
s->dc_val[1] = s->dc_val_base + y_size + s->mb_stride + 1;
s->dc_val[2] = s->dc_val[1] + c_size;
for (i = 0; i < yc_size; i++)
s->dc_val_base[i] = 1024;
}
FF_ALLOCZ_OR_GOTO(s->avctx, s->mbintra_table, mb_array_size, fail);
memset(s->mbintra_table, 1, mb_array_size);
FF_ALLOCZ_OR_GOTO(s->avctx, s->mbskip_table, mb_array_size + 2, fail);
return init_er(s);
fail:
return AVERROR(ENOMEM);
} | ['static int init_context_frame(MpegEncContext *s)\n{\n int y_size, c_size, yc_size, i, mb_array_size, mv_table_size, x, y;\n s->mb_width = (s->width + 15) / 16;\n s->mb_stride = s->mb_width + 1;\n s->b8_stride = s->mb_width * 2 + 1;\n s->b4_stride = s->mb_width * 4 + 1;\n mb_array_size = s->mb_height * s->mb_stride;\n mv_table_size = (s->mb_height + 2) * s->mb_stride + 1;\n s->h_edge_pos = s->mb_width * 16;\n s->v_edge_pos = s->mb_height * 16;\n s->mb_num = s->mb_width * s->mb_height;\n s->block_wrap[0] =\n s->block_wrap[1] =\n s->block_wrap[2] =\n s->block_wrap[3] = s->b8_stride;\n s->block_wrap[4] =\n s->block_wrap[5] = s->mb_stride;\n y_size = s->b8_stride * (2 * s->mb_height + 1);\n c_size = s->mb_stride * (s->mb_height + 1);\n yc_size = y_size + 2 * c_size;\n FF_ALLOCZ_OR_GOTO(s->avctx, s->mb_index2xy, (s->mb_num + 1) * sizeof(int),\n fail);\n for (y = 0; y < s->mb_height; y++)\n for (x = 0; x < s->mb_width; x++)\n s->mb_index2xy[x + y * s->mb_width] = x + y * s->mb_stride;\n s->mb_index2xy[s->mb_height * s->mb_width] =\n (s->mb_height - 1) * s->mb_stride + s->mb_width;\n if (s->encoding) {\n FF_ALLOCZ_OR_GOTO(s->avctx, s->p_mv_table_base,\n mv_table_size * 2 * sizeof(int16_t), fail);\n FF_ALLOCZ_OR_GOTO(s->avctx, s->b_forw_mv_table_base,\n mv_table_size * 2 * sizeof(int16_t), fail);\n FF_ALLOCZ_OR_GOTO(s->avctx, s->b_back_mv_table_base,\n mv_table_size * 2 * sizeof(int16_t), fail);\n FF_ALLOCZ_OR_GOTO(s->avctx, s->b_bidir_forw_mv_table_base,\n mv_table_size * 2 * sizeof(int16_t), fail);\n FF_ALLOCZ_OR_GOTO(s->avctx, s->b_bidir_back_mv_table_base,\n mv_table_size * 2 * sizeof(int16_t), fail);\n FF_ALLOCZ_OR_GOTO(s->avctx, s->b_direct_mv_table_base,\n mv_table_size * 2 * sizeof(int16_t), fail);\n s->p_mv_table = s->p_mv_table_base + s->mb_stride + 1;\n s->b_forw_mv_table = s->b_forw_mv_table_base + s->mb_stride + 1;\n s->b_back_mv_table = s->b_back_mv_table_base + s->mb_stride + 1;\n s->b_bidir_forw_mv_table = s->b_bidir_forw_mv_table_base +\n s->mb_stride + 1;\n s->b_bidir_back_mv_table = s->b_bidir_back_mv_table_base +\n s->mb_stride + 1;\n s->b_direct_mv_table = s->b_direct_mv_table_base + s->mb_stride + 1;\n FF_ALLOCZ_OR_GOTO(s->avctx, s->mb_type, mb_array_size *\n sizeof(uint16_t), fail);\n FF_ALLOCZ_OR_GOTO(s->avctx, s->lambda_table, mb_array_size *\n sizeof(int), fail);\n FF_ALLOC_OR_GOTO(s->avctx, s->cplx_tab,\n mb_array_size * sizeof(float), fail);\n FF_ALLOC_OR_GOTO(s->avctx, s->bits_tab,\n mb_array_size * sizeof(float), fail);\n }\n if (s->codec_id == AV_CODEC_ID_MPEG4 ||\n (s->flags & CODEC_FLAG_INTERLACED_ME)) {\n for (i = 0; i < 2; i++) {\n int j, k;\n for (j = 0; j < 2; j++) {\n for (k = 0; k < 2; k++) {\n FF_ALLOCZ_OR_GOTO(s->avctx,\n s->b_field_mv_table_base[i][j][k],\n mv_table_size * 2 * sizeof(int16_t),\n fail);\n s->b_field_mv_table[i][j][k] = s->b_field_mv_table_base[i][j][k] +\n s->mb_stride + 1;\n }\n FF_ALLOCZ_OR_GOTO(s->avctx, s->b_field_select_table [i][j],\n mb_array_size * 2 * sizeof(uint8_t), fail);\n FF_ALLOCZ_OR_GOTO(s->avctx, s->p_field_mv_table_base[i][j],\n mv_table_size * 2 * sizeof(int16_t), fail);\n s->p_field_mv_table[i][j] = s->p_field_mv_table_base[i][j]\n + s->mb_stride + 1;\n }\n FF_ALLOCZ_OR_GOTO(s->avctx, s->p_field_select_table[i],\n mb_array_size * 2 * sizeof(uint8_t), fail);\n }\n }\n if (s->out_format == FMT_H263) {\n FF_ALLOCZ_OR_GOTO(s->avctx, s->coded_block_base, y_size, fail);\n s->coded_block = s->coded_block_base + s->b8_stride + 1;\n FF_ALLOCZ_OR_GOTO(s->avctx, s->cbp_table,\n mb_array_size * sizeof(uint8_t), fail);\n FF_ALLOCZ_OR_GOTO(s->avctx, s->pred_dir_table,\n mb_array_size * sizeof(uint8_t), fail);\n }\n if (s->h263_pred || s->h263_plus || !s->encoding) {\n FF_ALLOCZ_OR_GOTO(s->avctx, s->dc_val_base,\n yc_size * sizeof(int16_t), fail);\n s->dc_val[0] = s->dc_val_base + s->b8_stride + 1;\n s->dc_val[1] = s->dc_val_base + y_size + s->mb_stride + 1;\n s->dc_val[2] = s->dc_val[1] + c_size;\n for (i = 0; i < yc_size; i++)\n s->dc_val_base[i] = 1024;\n }\n FF_ALLOCZ_OR_GOTO(s->avctx, s->mbintra_table, mb_array_size, fail);\n memset(s->mbintra_table, 1, mb_array_size);\n FF_ALLOCZ_OR_GOTO(s->avctx, s->mbskip_table, mb_array_size + 2, fail);\n return init_er(s);\nfail:\n return AVERROR(ENOMEM);\n}', 'void *av_mallocz(size_t size)\n{\n void *ptr = av_malloc(size);\n if (ptr)\n memset(ptr, 0, size);\n return ptr;\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) || !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}'] |
23,138 | 0 | https://github.com/libav/libav/blob/a2fb4bcb0189f6421608e0dec1a38c65910763f6/libavcodec/celp_filters.c/#L68 | int ff_celp_lp_synthesis_filter(int16_t *out, const int16_t *filter_coeffs,
const int16_t *in, int buffer_length,
int filter_length, int stop_on_overflow,
int rounder)
{
int i,n;
for (n = 0; n < buffer_length; n++) {
int sum = rounder;
for (i = 1; i <= filter_length; i++)
sum -= filter_coeffs[i-1] * out[n-i];
sum = (sum >> 12) + in[n];
if (sum + 0x8000 > 0xFFFFU) {
if (stop_on_overflow)
return 1;
sum = (sum >> 31) ^ 32767;
}
out[n] = sum;
}
return 0;
} | ['static int ra144_decode_frame(AVCodecContext * avctx, void *data,\n int *got_frame_ptr, AVPacket *avpkt)\n{\n const uint8_t *buf = avpkt->data;\n int buf_size = avpkt->size;\n static const uint8_t sizes[LPC_ORDER] = {6, 5, 5, 4, 4, 3, 3, 3, 3, 2};\n unsigned int refl_rms[NBLOCKS];\n uint16_t block_coefs[NBLOCKS][LPC_ORDER];\n unsigned int lpc_refl[LPC_ORDER];\n int i, j;\n int ret;\n int16_t *samples;\n unsigned int energy;\n RA144Context *ractx = avctx->priv_data;\n GetBitContext gb;\n ractx->frame.nb_samples = NBLOCKS * BLOCKSIZE;\n if ((ret = avctx->get_buffer(avctx, &ractx->frame)) < 0) {\n av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\\n");\n return ret;\n }\n samples = (int16_t *)ractx->frame.data[0];\n if(buf_size < FRAMESIZE) {\n av_log(avctx, AV_LOG_ERROR,\n "Frame too small (%d bytes). Truncated file?\\n", buf_size);\n *got_frame_ptr = 0;\n return buf_size;\n }\n init_get_bits(&gb, buf, FRAMESIZE * 8);\n for (i = 0; i < LPC_ORDER; i++)\n lpc_refl[i] = ff_lpc_refl_cb[i][get_bits(&gb, sizes[i])];\n ff_eval_coefs(ractx->lpc_coef[0], lpc_refl);\n ractx->lpc_refl_rms[0] = ff_rms(lpc_refl);\n energy = ff_energy_tab[get_bits(&gb, 5)];\n refl_rms[0] = ff_interp(ractx, block_coefs[0], 1, 1, ractx->old_energy);\n refl_rms[1] = ff_interp(ractx, block_coefs[1], 2,\n energy <= ractx->old_energy,\n ff_t_sqrt(energy*ractx->old_energy) >> 12);\n refl_rms[2] = ff_interp(ractx, block_coefs[2], 3, 0, energy);\n refl_rms[3] = ff_rescale_rms(ractx->lpc_refl_rms[0], energy);\n ff_int_to_int16(block_coefs[3], ractx->lpc_coef[0]);\n for (i=0; i < NBLOCKS; i++) {\n do_output_subblock(ractx, block_coefs[i], refl_rms[i], &gb);\n for (j=0; j < BLOCKSIZE; j++)\n *samples++ = av_clip_int16(ractx->curr_sblock[j + 10] << 2);\n }\n ractx->old_energy = energy;\n ractx->lpc_refl_rms[1] = ractx->lpc_refl_rms[0];\n FFSWAP(unsigned int *, ractx->lpc_coef[0], ractx->lpc_coef[1]);\n *got_frame_ptr = 1;\n *(AVFrame *)data = ractx->frame;\n return FRAMESIZE;\n}', 'static void do_output_subblock(RA144Context *ractx, const uint16_t *lpc_coefs,\n int gval, GetBitContext *gb)\n{\n int cba_idx = get_bits(gb, 7);\n int gain = get_bits(gb, 8);\n int cb1_idx = get_bits(gb, 7);\n int cb2_idx = get_bits(gb, 7);\n ff_subblock_synthesis(ractx, lpc_coefs, cba_idx, cb1_idx, cb2_idx, gval,\n gain);\n}', 'void ff_subblock_synthesis(RA144Context *ractx, const uint16_t *lpc_coefs,\n int cba_idx, int cb1_idx, int cb2_idx,\n int gval, int gain)\n{\n uint16_t buffer_a[BLOCKSIZE];\n uint16_t *block;\n int m[3];\n if (cba_idx) {\n cba_idx += BLOCKSIZE/2 - 1;\n ff_copy_and_dup(buffer_a, ractx->adapt_cb, cba_idx);\n m[0] = (ff_irms(buffer_a) * gval) >> 12;\n } else {\n m[0] = 0;\n }\n m[1] = (ff_cb1_base[cb1_idx] * gval) >> 8;\n m[2] = (ff_cb2_base[cb2_idx] * gval) >> 8;\n memmove(ractx->adapt_cb, ractx->adapt_cb + BLOCKSIZE,\n (BUFFERSIZE - BLOCKSIZE) * sizeof(*ractx->adapt_cb));\n block = ractx->adapt_cb + BUFFERSIZE - BLOCKSIZE;\n ff_add_wav(block, gain, cba_idx, m, cba_idx? buffer_a: NULL,\n ff_cb1_vects[cb1_idx], ff_cb2_vects[cb2_idx]);\n memcpy(ractx->curr_sblock, ractx->curr_sblock + BLOCKSIZE,\n LPC_ORDER*sizeof(*ractx->curr_sblock));\n if (ff_celp_lp_synthesis_filter(ractx->curr_sblock + LPC_ORDER, lpc_coefs,\n block, BLOCKSIZE, LPC_ORDER, 1, 0xfff))\n memset(ractx->curr_sblock, 0, (LPC_ORDER+BLOCKSIZE)*sizeof(*ractx->curr_sblock));\n}', 'int ff_celp_lp_synthesis_filter(int16_t *out, const int16_t *filter_coeffs,\n const int16_t *in, int buffer_length,\n int filter_length, int stop_on_overflow,\n int rounder)\n{\n int i,n;\n for (n = 0; n < buffer_length; n++) {\n int sum = rounder;\n for (i = 1; i <= filter_length; i++)\n sum -= filter_coeffs[i-1] * out[n-i];\n sum = (sum >> 12) + in[n];\n if (sum + 0x8000 > 0xFFFFU) {\n if (stop_on_overflow)\n return 1;\n sum = (sum >> 31) ^ 32767;\n }\n out[n] = sum;\n }\n return 0;\n}'] |
23,139 | 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 BN_gcd(BIGNUM *r, const BIGNUM *in_a, const BIGNUM *in_b, BN_CTX *ctx)\n{\n BIGNUM *a, *b, *t;\n int ret = 0;\n bn_check_top(in_a);\n bn_check_top(in_b);\n BN_CTX_start(ctx);\n a = BN_CTX_get(ctx);\n b = BN_CTX_get(ctx);\n if (a == NULL || b == NULL)\n goto err;\n if (BN_copy(a, in_a) == NULL)\n goto err;\n if (BN_copy(b, in_b) == NULL)\n goto err;\n a->neg = 0;\n b->neg = 0;\n if (BN_cmp(a, b) < 0) {\n t = a;\n a = b;\n b = t;\n }\n t = euclid(a, b);\n if (t == NULL)\n goto err;\n if (BN_copy(r, t) == NULL)\n goto err;\n ret = 1;\n err:\n BN_CTX_end(ctx);\n bn_check_top(r);\n return (ret);\n}', 'BIGNUM *BN_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}'] |
23,140 | 0 | https://github.com/libav/libav/blob/d6f66edd65992c1275f8e4271be212e1a4808425/ffmpeg.c/#L3638 | static int opt_streamid(const char *opt, const char *arg)
{
int idx;
char *p;
char idx_str[16];
strncpy(idx_str, arg, sizeof(idx_str));
idx_str[sizeof(idx_str)-1] = '\0';
p = strchr(idx_str, ':');
if (!p) {
fprintf(stderr,
"Invalid value '%s' for option '%s', required syntax is 'index:value'\n",
arg, opt);
ffmpeg_exit(1);
}
*p++ = '\0';
idx = parse_number_or_die(opt, idx_str, OPT_INT, 0, MAX_STREAMS-1);
streamid_map = grow_array(streamid_map, sizeof(*streamid_map), &nb_streamid_map, idx+1);
streamid_map[idx] = parse_number_or_die(opt, p, OPT_INT, 0, INT_MAX);
return 0;
} | ['static int opt_streamid(const char *opt, const char *arg)\n{\n int idx;\n char *p;\n char idx_str[16];\n strncpy(idx_str, arg, sizeof(idx_str));\n idx_str[sizeof(idx_str)-1] = \'\\0\';\n p = strchr(idx_str, \':\');\n if (!p) {\n fprintf(stderr,\n "Invalid value \'%s\' for option \'%s\', required syntax is \'index:value\'\\n",\n arg, opt);\n ffmpeg_exit(1);\n }\n *p++ = \'\\0\';\n idx = parse_number_or_die(opt, idx_str, OPT_INT, 0, MAX_STREAMS-1);\n streamid_map = grow_array(streamid_map, sizeof(*streamid_map), &nb_streamid_map, idx+1);\n streamid_map[idx] = parse_number_or_die(opt, p, OPT_INT, 0, INT_MAX);\n return 0;\n}', 'static void *grow_array(void *array, int elem_size, int *size, int new_size)\n{\n if (new_size >= INT_MAX / elem_size) {\n fprintf(stderr, "Array too big.\\n");\n ffmpeg_exit(1);\n }\n if (*size < new_size) {\n uint8_t *tmp = av_realloc(array, new_size*elem_size);\n if (!tmp) {\n fprintf(stderr, "Could not alloc buffer.\\n");\n ffmpeg_exit(1);\n }\n memset(tmp + *size*elem_size, 0, (new_size-*size) * elem_size);\n *size = new_size;\n return tmp;\n }\n return array;\n}', 'void *av_realloc(void *ptr, FF_INTERNAL_MEM_TYPE size)\n{\n#if CONFIG_MEMALIGN_HACK\n int diff;\n#endif\n if(size > (INT_MAX-16) )\n return NULL;\n#if CONFIG_MEMALIGN_HACK\n if(!ptr) return av_malloc(size);\n diff= ((char*)ptr)[-1];\n return (char*)realloc((char*)ptr - diff, size + diff) + diff;\n#else\n return realloc(ptr, size);\n#endif\n}'] |
23,141 | 0 | https://github.com/libav/libav/blob/fa0912fe50e59df72b7bf81f8838d2c6d9780343/libavcodec/aaccoder.c/#L737 | static void search_for_quantizers_twoloop(AVCodecContext *avctx,
AACEncContext *s,
SingleChannelElement *sce,
const float lambda)
{
int start = 0, i, w, w2, g;
int destbits = avctx->bit_rate * 1024.0 / avctx->sample_rate / avctx->channels;
float dists[128], uplims[128];
int fflag, minscaler;
int its = 0;
int allz = 0;
float minthr = INFINITY;
memset(dists, 0, sizeof(dists));
for (w = 0; w < sce->ics.num_windows; w += sce->ics.group_len[w]) {
for (g = 0; g < sce->ics.num_swb; g++) {
int nz = 0;
float uplim = 0.0f;
for (w2 = 0; w2 < sce->ics.group_len[w]; w2++) {
FFPsyBand *band = &s->psy.psy_bands[s->cur_channel*PSY_MAX_BANDS+(w+w2)*16+g];
uplim += band->threshold;
if (band->energy <= band->threshold || band->threshold == 0.0f) {
sce->zeroes[(w+w2)*16+g] = 1;
continue;
}
nz = 1;
}
uplims[w*16+g] = uplim *512;
sce->zeroes[w*16+g] = !nz;
if (nz)
minthr = FFMIN(minthr, uplim);
allz = FFMAX(allz, nz);
}
}
for (w = 0; w < sce->ics.num_windows; w += sce->ics.group_len[w]) {
for (g = 0; g < sce->ics.num_swb; g++) {
if (sce->zeroes[w*16+g]) {
sce->sf_idx[w*16+g] = SCALE_ONE_POS;
continue;
}
sce->sf_idx[w*16+g] = SCALE_ONE_POS + FFMIN(log2(uplims[w*16+g]/minthr)*4,59);
}
}
if (!allz)
return;
abs_pow34_v(s->scoefs, sce->coeffs, 1024);
do {
int tbits, qstep;
minscaler = sce->sf_idx[0];
qstep = its ? 1 : 32;
do {
int prev = -1;
tbits = 0;
fflag = 0;
for (w = 0; w < sce->ics.num_windows; w += sce->ics.group_len[w]) {
start = w*128;
for (g = 0; g < sce->ics.num_swb; g++) {
const float *coefs = sce->coeffs + start;
const float *scaled = s->scoefs + start;
int bits = 0;
int cb;
float mindist = INFINITY;
int minbits = 0;
if (sce->zeroes[w*16+g] || sce->sf_idx[w*16+g] >= 218) {
start += sce->ics.swb_sizes[g];
continue;
}
minscaler = FFMIN(minscaler, sce->sf_idx[w*16+g]);
for (cb = 0; cb <= ESC_BT; cb++) {
float dist = 0.0f;
int bb = 0;
for (w2 = 0; w2 < sce->ics.group_len[w]; w2++) {
int b;
dist += quantize_band_cost(s, coefs + w2*128,
scaled + w2*128,
sce->ics.swb_sizes[g],
sce->sf_idx[w*16+g],
cb,
lambda,
INFINITY,
&b);
bb += b;
}
if (dist < mindist) {
mindist = dist;
minbits = bb;
}
}
dists[w*16+g] = (mindist - minbits) / lambda;
bits = minbits;
if (prev != -1) {
bits += ff_aac_scalefactor_bits[sce->sf_idx[w*16+g] - prev + SCALE_DIFF_ZERO];
}
tbits += bits;
start += sce->ics.swb_sizes[g];
prev = sce->sf_idx[w*16+g];
}
}
if (tbits > destbits) {
for (i = 0; i < 128; i++)
if (sce->sf_idx[i] < 218 - qstep)
sce->sf_idx[i] += qstep;
} else {
for (i = 0; i < 128; i++)
if (sce->sf_idx[i] > 60 - qstep)
sce->sf_idx[i] -= qstep;
}
qstep >>= 1;
if (!qstep && tbits > destbits*1.02)
qstep = 1;
if (sce->sf_idx[0] >= 217)
break;
} while (qstep);
fflag = 0;
minscaler = av_clip(minscaler, 60, 255 - SCALE_MAX_DIFF);
for (w = 0; w < sce->ics.num_windows; w += sce->ics.group_len[w]) {
start = w*128;
for (g = 0; g < sce->ics.num_swb; g++) {
int prevsc = sce->sf_idx[w*16+g];
if (dists[w*16+g] > uplims[w*16+g] && sce->sf_idx[w*16+g] > 60)
sce->sf_idx[w*16+g]--;
sce->sf_idx[w*16+g] = av_clip(sce->sf_idx[w*16+g], minscaler, minscaler + SCALE_MAX_DIFF);
sce->sf_idx[w*16+g] = FFMIN(sce->sf_idx[w*16+g], 219);
if (sce->sf_idx[w*16+g] != prevsc)
fflag = 1;
}
}
its++;
} while (fflag && its < 10);
} | ['static void search_for_quantizers_twoloop(AVCodecContext *avctx,\n AACEncContext *s,\n SingleChannelElement *sce,\n const float lambda)\n{\n int start = 0, i, w, w2, g;\n int destbits = avctx->bit_rate * 1024.0 / avctx->sample_rate / avctx->channels;\n float dists[128], uplims[128];\n int fflag, minscaler;\n int its = 0;\n int allz = 0;\n float minthr = INFINITY;\n memset(dists, 0, sizeof(dists));\n for (w = 0; w < sce->ics.num_windows; w += sce->ics.group_len[w]) {\n for (g = 0; g < sce->ics.num_swb; g++) {\n int nz = 0;\n float uplim = 0.0f;\n for (w2 = 0; w2 < sce->ics.group_len[w]; w2++) {\n FFPsyBand *band = &s->psy.psy_bands[s->cur_channel*PSY_MAX_BANDS+(w+w2)*16+g];\n uplim += band->threshold;\n if (band->energy <= band->threshold || band->threshold == 0.0f) {\n sce->zeroes[(w+w2)*16+g] = 1;\n continue;\n }\n nz = 1;\n }\n uplims[w*16+g] = uplim *512;\n sce->zeroes[w*16+g] = !nz;\n if (nz)\n minthr = FFMIN(minthr, uplim);\n allz = FFMAX(allz, nz);\n }\n }\n for (w = 0; w < sce->ics.num_windows; w += sce->ics.group_len[w]) {\n for (g = 0; g < sce->ics.num_swb; g++) {\n if (sce->zeroes[w*16+g]) {\n sce->sf_idx[w*16+g] = SCALE_ONE_POS;\n continue;\n }\n sce->sf_idx[w*16+g] = SCALE_ONE_POS + FFMIN(log2(uplims[w*16+g]/minthr)*4,59);\n }\n }\n if (!allz)\n return;\n abs_pow34_v(s->scoefs, sce->coeffs, 1024);\n do {\n int tbits, qstep;\n minscaler = sce->sf_idx[0];\n qstep = its ? 1 : 32;\n do {\n int prev = -1;\n tbits = 0;\n fflag = 0;\n for (w = 0; w < sce->ics.num_windows; w += sce->ics.group_len[w]) {\n start = w*128;\n for (g = 0; g < sce->ics.num_swb; g++) {\n const float *coefs = sce->coeffs + start;\n const float *scaled = s->scoefs + start;\n int bits = 0;\n int cb;\n float mindist = INFINITY;\n int minbits = 0;\n if (sce->zeroes[w*16+g] || sce->sf_idx[w*16+g] >= 218) {\n start += sce->ics.swb_sizes[g];\n continue;\n }\n minscaler = FFMIN(minscaler, sce->sf_idx[w*16+g]);\n for (cb = 0; cb <= ESC_BT; cb++) {\n float dist = 0.0f;\n int bb = 0;\n for (w2 = 0; w2 < sce->ics.group_len[w]; w2++) {\n int b;\n dist += quantize_band_cost(s, coefs + w2*128,\n scaled + w2*128,\n sce->ics.swb_sizes[g],\n sce->sf_idx[w*16+g],\n cb,\n lambda,\n INFINITY,\n &b);\n bb += b;\n }\n if (dist < mindist) {\n mindist = dist;\n minbits = bb;\n }\n }\n dists[w*16+g] = (mindist - minbits) / lambda;\n bits = minbits;\n if (prev != -1) {\n bits += ff_aac_scalefactor_bits[sce->sf_idx[w*16+g] - prev + SCALE_DIFF_ZERO];\n }\n tbits += bits;\n start += sce->ics.swb_sizes[g];\n prev = sce->sf_idx[w*16+g];\n }\n }\n if (tbits > destbits) {\n for (i = 0; i < 128; i++)\n if (sce->sf_idx[i] < 218 - qstep)\n sce->sf_idx[i] += qstep;\n } else {\n for (i = 0; i < 128; i++)\n if (sce->sf_idx[i] > 60 - qstep)\n sce->sf_idx[i] -= qstep;\n }\n qstep >>= 1;\n if (!qstep && tbits > destbits*1.02)\n qstep = 1;\n if (sce->sf_idx[0] >= 217)\n break;\n } while (qstep);\n fflag = 0;\n minscaler = av_clip(minscaler, 60, 255 - SCALE_MAX_DIFF);\n for (w = 0; w < sce->ics.num_windows; w += sce->ics.group_len[w]) {\n start = w*128;\n for (g = 0; g < sce->ics.num_swb; g++) {\n int prevsc = sce->sf_idx[w*16+g];\n if (dists[w*16+g] > uplims[w*16+g] && sce->sf_idx[w*16+g] > 60)\n sce->sf_idx[w*16+g]--;\n sce->sf_idx[w*16+g] = av_clip(sce->sf_idx[w*16+g], minscaler, minscaler + SCALE_MAX_DIFF);\n sce->sf_idx[w*16+g] = FFMIN(sce->sf_idx[w*16+g], 219);\n if (sce->sf_idx[w*16+g] != prevsc)\n fflag = 1;\n }\n }\n its++;\n } while (fflag && its < 10);\n}'] |
23,142 | 0 | https://github.com/libav/libav/blob/58ef4ecff834f47f5a4c2a6bd4385b1999a30930/libavcodec/h264.h/#L976 | static void fill_decode_caches(H264Context *h, int mb_type){
MpegEncContext * const s = &h->s;
int topleft_xy, top_xy, topright_xy, left_xy[LEFT_MBS];
int topleft_type, top_type, topright_type, left_type[LEFT_MBS];
const uint8_t * left_block= h->left_block;
int i;
uint8_t *nnz;
uint8_t *nnz_cache;
topleft_xy = h->topleft_mb_xy;
top_xy = h->top_mb_xy;
topright_xy = h->topright_mb_xy;
left_xy[LTOP] = h->left_mb_xy[LTOP];
left_xy[LBOT] = h->left_mb_xy[LBOT];
topleft_type = h->topleft_type;
top_type = h->top_type;
topright_type = h->topright_type;
left_type[LTOP]= h->left_type[LTOP];
left_type[LBOT]= h->left_type[LBOT];
if(!IS_SKIP(mb_type)){
if(IS_INTRA(mb_type)){
int type_mask= h->pps.constrained_intra_pred ? IS_INTRA(-1) : -1;
h->topleft_samples_available=
h->top_samples_available=
h->left_samples_available= 0xFFFF;
h->topright_samples_available= 0xEEEA;
if(!(top_type & type_mask)){
h->topleft_samples_available= 0xB3FF;
h->top_samples_available= 0x33FF;
h->topright_samples_available= 0x26EA;
}
if(IS_INTERLACED(mb_type) != IS_INTERLACED(left_type[LTOP])){
if(IS_INTERLACED(mb_type)){
if(!(left_type[LTOP] & type_mask)){
h->topleft_samples_available&= 0xDFFF;
h->left_samples_available&= 0x5FFF;
}
if(!(left_type[LBOT] & type_mask)){
h->topleft_samples_available&= 0xFF5F;
h->left_samples_available&= 0xFF5F;
}
}else{
int left_typei = s->current_picture.f.mb_type[left_xy[LTOP] + s->mb_stride];
assert(left_xy[LTOP] == left_xy[LBOT]);
if(!((left_typei & type_mask) && (left_type[LTOP] & type_mask))){
h->topleft_samples_available&= 0xDF5F;
h->left_samples_available&= 0x5F5F;
}
}
}else{
if(!(left_type[LTOP] & type_mask)){
h->topleft_samples_available&= 0xDF5F;
h->left_samples_available&= 0x5F5F;
}
}
if(!(topleft_type & type_mask))
h->topleft_samples_available&= 0x7FFF;
if(!(topright_type & type_mask))
h->topright_samples_available&= 0xFBFF;
if(IS_INTRA4x4(mb_type)){
if(IS_INTRA4x4(top_type)){
AV_COPY32(h->intra4x4_pred_mode_cache+4+8*0, h->intra4x4_pred_mode + h->mb2br_xy[top_xy]);
}else{
h->intra4x4_pred_mode_cache[4+8*0]=
h->intra4x4_pred_mode_cache[5+8*0]=
h->intra4x4_pred_mode_cache[6+8*0]=
h->intra4x4_pred_mode_cache[7+8*0]= 2 - 3*!(top_type & type_mask);
}
for(i=0; i<2; i++){
if(IS_INTRA4x4(left_type[LEFT(i)])){
int8_t *mode= h->intra4x4_pred_mode + h->mb2br_xy[left_xy[LEFT(i)]];
h->intra4x4_pred_mode_cache[3+8*1 + 2*8*i]= mode[6-left_block[0+2*i]];
h->intra4x4_pred_mode_cache[3+8*2 + 2*8*i]= mode[6-left_block[1+2*i]];
}else{
h->intra4x4_pred_mode_cache[3+8*1 + 2*8*i]=
h->intra4x4_pred_mode_cache[3+8*2 + 2*8*i]= 2 - 3*!(left_type[LEFT(i)] & type_mask);
}
}
}
}
nnz_cache = h->non_zero_count_cache;
if(top_type){
nnz = h->non_zero_count[top_xy];
AV_COPY32(&nnz_cache[4+8* 0], &nnz[4*3]);
if(CHROMA444){
AV_COPY32(&nnz_cache[4+8* 5], &nnz[4* 7]);
AV_COPY32(&nnz_cache[4+8*10], &nnz[4*11]);
}else{
AV_COPY32(&nnz_cache[4+8* 5], &nnz[4* 5]);
AV_COPY32(&nnz_cache[4+8*10], &nnz[4* 9]);
}
}else{
uint32_t top_empty = CABAC && !IS_INTRA(mb_type) ? 0 : 0x40404040;
AV_WN32A(&nnz_cache[4+8* 0], top_empty);
AV_WN32A(&nnz_cache[4+8* 5], top_empty);
AV_WN32A(&nnz_cache[4+8*10], top_empty);
}
for (i=0; i<2; i++) {
if(left_type[LEFT(i)]){
nnz = h->non_zero_count[left_xy[LEFT(i)]];
nnz_cache[3+8* 1 + 2*8*i]= nnz[left_block[8+0+2*i]];
nnz_cache[3+8* 2 + 2*8*i]= nnz[left_block[8+1+2*i]];
if(CHROMA444){
nnz_cache[3+8* 6 + 2*8*i]= nnz[left_block[8+0+2*i]+4*4];
nnz_cache[3+8* 7 + 2*8*i]= nnz[left_block[8+1+2*i]+4*4];
nnz_cache[3+8*11 + 2*8*i]= nnz[left_block[8+0+2*i]+8*4];
nnz_cache[3+8*12 + 2*8*i]= nnz[left_block[8+1+2*i]+8*4];
}else{
nnz_cache[3+8* 6 + 8*i]= nnz[left_block[8+4+2*i]];
nnz_cache[3+8*11 + 8*i]= nnz[left_block[8+5+2*i]];
}
}else{
nnz_cache[3+8* 1 + 2*8*i]=
nnz_cache[3+8* 2 + 2*8*i]=
nnz_cache[3+8* 6 + 2*8*i]=
nnz_cache[3+8* 7 + 2*8*i]=
nnz_cache[3+8*11 + 2*8*i]=
nnz_cache[3+8*12 + 2*8*i]= CABAC && !IS_INTRA(mb_type) ? 0 : 64;
}
}
if( CABAC ) {
if(top_type) {
h->top_cbp = h->cbp_table[top_xy];
} else {
h->top_cbp = IS_INTRA(mb_type) ? 0x7CF : 0x00F;
}
if (left_type[LTOP]) {
h->left_cbp = (h->cbp_table[left_xy[LTOP]] & 0x7F0)
| ((h->cbp_table[left_xy[LTOP]]>>(left_block[0]&(~1)))&2)
| (((h->cbp_table[left_xy[LBOT]]>>(left_block[2]&(~1)))&2) << 2);
} else {
h->left_cbp = IS_INTRA(mb_type) ? 0x7CF : 0x00F;
}
}
}
if(IS_INTER(mb_type) || (IS_DIRECT(mb_type) && h->direct_spatial_mv_pred)){
int list;
int b_stride = h->b_stride;
for(list=0; list<h->list_count; list++){
int8_t *ref_cache = &h->ref_cache[list][scan8[0]];
int8_t *ref = s->current_picture.f.ref_index[list];
int16_t (*mv_cache)[2] = &h->mv_cache[list][scan8[0]];
int16_t (*mv)[2] = s->current_picture.f.motion_val[list];
if(!USES_LIST(mb_type, list)){
continue;
}
assert(!(IS_DIRECT(mb_type) && !h->direct_spatial_mv_pred));
if(USES_LIST(top_type, list)){
const int b_xy= h->mb2b_xy[top_xy] + 3*b_stride;
AV_COPY128(mv_cache[0 - 1*8], mv[b_xy + 0]);
ref_cache[0 - 1*8]=
ref_cache[1 - 1*8]= ref[4*top_xy + 2];
ref_cache[2 - 1*8]=
ref_cache[3 - 1*8]= ref[4*top_xy + 3];
}else{
AV_ZERO128(mv_cache[0 - 1*8]);
AV_WN32A(&ref_cache[0 - 1*8], ((top_type ? LIST_NOT_USED : PART_NOT_AVAILABLE)&0xFF)*0x01010101);
}
if(mb_type & (MB_TYPE_16x8|MB_TYPE_8x8)){
for(i=0; i<2; i++){
int cache_idx = -1 + i*2*8;
if(USES_LIST(left_type[LEFT(i)], list)){
const int b_xy= h->mb2b_xy[left_xy[LEFT(i)]] + 3;
const int b8_xy= 4*left_xy[LEFT(i)] + 1;
AV_COPY32(mv_cache[cache_idx ], mv[b_xy + b_stride*left_block[0+i*2]]);
AV_COPY32(mv_cache[cache_idx+8], mv[b_xy + b_stride*left_block[1+i*2]]);
ref_cache[cache_idx ]= ref[b8_xy + (left_block[0+i*2]&~1)];
ref_cache[cache_idx+8]= ref[b8_xy + (left_block[1+i*2]&~1)];
}else{
AV_ZERO32(mv_cache[cache_idx ]);
AV_ZERO32(mv_cache[cache_idx+8]);
ref_cache[cache_idx ]=
ref_cache[cache_idx+8]= (left_type[LEFT(i)]) ? LIST_NOT_USED : PART_NOT_AVAILABLE;
}
}
}else{
if(USES_LIST(left_type[LTOP], list)){
const int b_xy= h->mb2b_xy[left_xy[LTOP]] + 3;
const int b8_xy= 4*left_xy[LTOP] + 1;
AV_COPY32(mv_cache[-1], mv[b_xy + b_stride*left_block[0]]);
ref_cache[-1]= ref[b8_xy + (left_block[0]&~1)];
}else{
AV_ZERO32(mv_cache[-1]);
ref_cache[-1]= left_type[LTOP] ? LIST_NOT_USED : PART_NOT_AVAILABLE;
}
}
if(USES_LIST(topright_type, list)){
const int b_xy= h->mb2b_xy[topright_xy] + 3*b_stride;
AV_COPY32(mv_cache[4 - 1*8], mv[b_xy]);
ref_cache[4 - 1*8]= ref[4*topright_xy + 2];
}else{
AV_ZERO32(mv_cache[4 - 1*8]);
ref_cache[4 - 1*8]= topright_type ? LIST_NOT_USED : PART_NOT_AVAILABLE;
}
if(ref_cache[4 - 1*8] < 0){
if(USES_LIST(topleft_type, list)){
const int b_xy = h->mb2b_xy[topleft_xy] + 3 + b_stride + (h->topleft_partition & 2*b_stride);
const int b8_xy= 4*topleft_xy + 1 + (h->topleft_partition & 2);
AV_COPY32(mv_cache[-1 - 1*8], mv[b_xy]);
ref_cache[-1 - 1*8]= ref[b8_xy];
}else{
AV_ZERO32(mv_cache[-1 - 1*8]);
ref_cache[-1 - 1*8]= topleft_type ? LIST_NOT_USED : PART_NOT_AVAILABLE;
}
}
if((mb_type&(MB_TYPE_SKIP|MB_TYPE_DIRECT2)) && !FRAME_MBAFF)
continue;
if(!(mb_type&(MB_TYPE_SKIP|MB_TYPE_DIRECT2))){
uint8_t (*mvd_cache)[2] = &h->mvd_cache[list][scan8[0]];
uint8_t (*mvd)[2] = h->mvd_table[list];
ref_cache[2+8*0] =
ref_cache[2+8*2] = PART_NOT_AVAILABLE;
AV_ZERO32(mv_cache[2+8*0]);
AV_ZERO32(mv_cache[2+8*2]);
if( CABAC ) {
if(USES_LIST(top_type, list)){
const int b_xy= h->mb2br_xy[top_xy];
AV_COPY64(mvd_cache[0 - 1*8], mvd[b_xy + 0]);
}else{
AV_ZERO64(mvd_cache[0 - 1*8]);
}
if(USES_LIST(left_type[LTOP], list)){
const int b_xy= h->mb2br_xy[left_xy[LTOP]] + 6;
AV_COPY16(mvd_cache[-1 + 0*8], mvd[b_xy - left_block[0]]);
AV_COPY16(mvd_cache[-1 + 1*8], mvd[b_xy - left_block[1]]);
}else{
AV_ZERO16(mvd_cache[-1 + 0*8]);
AV_ZERO16(mvd_cache[-1 + 1*8]);
}
if(USES_LIST(left_type[LBOT], list)){
const int b_xy= h->mb2br_xy[left_xy[LBOT]] + 6;
AV_COPY16(mvd_cache[-1 + 2*8], mvd[b_xy - left_block[2]]);
AV_COPY16(mvd_cache[-1 + 3*8], mvd[b_xy - left_block[3]]);
}else{
AV_ZERO16(mvd_cache[-1 + 2*8]);
AV_ZERO16(mvd_cache[-1 + 3*8]);
}
AV_ZERO16(mvd_cache[2+8*0]);
AV_ZERO16(mvd_cache[2+8*2]);
if(h->slice_type_nos == AV_PICTURE_TYPE_B){
uint8_t *direct_cache = &h->direct_cache[scan8[0]];
uint8_t *direct_table = h->direct_table;
fill_rectangle(direct_cache, 4, 4, 8, MB_TYPE_16x16>>1, 1);
if(IS_DIRECT(top_type)){
AV_WN32A(&direct_cache[-1*8], 0x01010101u*(MB_TYPE_DIRECT2>>1));
}else if(IS_8X8(top_type)){
int b8_xy = 4*top_xy;
direct_cache[0 - 1*8]= direct_table[b8_xy + 2];
direct_cache[2 - 1*8]= direct_table[b8_xy + 3];
}else{
AV_WN32A(&direct_cache[-1*8], 0x01010101*(MB_TYPE_16x16>>1));
}
if(IS_DIRECT(left_type[LTOP]))
direct_cache[-1 + 0*8]= MB_TYPE_DIRECT2>>1;
else if(IS_8X8(left_type[LTOP]))
direct_cache[-1 + 0*8]= direct_table[4*left_xy[LTOP] + 1 + (left_block[0]&~1)];
else
direct_cache[-1 + 0*8]= MB_TYPE_16x16>>1;
if(IS_DIRECT(left_type[LBOT]))
direct_cache[-1 + 2*8]= MB_TYPE_DIRECT2>>1;
else if(IS_8X8(left_type[LBOT]))
direct_cache[-1 + 2*8]= direct_table[4*left_xy[LBOT] + 1 + (left_block[2]&~1)];
else
direct_cache[-1 + 2*8]= MB_TYPE_16x16>>1;
}
}
}
if(FRAME_MBAFF){
#define MAP_MVS\
MAP_F2F(scan8[0] - 1 - 1*8, topleft_type)\
MAP_F2F(scan8[0] + 0 - 1*8, top_type)\
MAP_F2F(scan8[0] + 1 - 1*8, top_type)\
MAP_F2F(scan8[0] + 2 - 1*8, top_type)\
MAP_F2F(scan8[0] + 3 - 1*8, top_type)\
MAP_F2F(scan8[0] + 4 - 1*8, topright_type)\
MAP_F2F(scan8[0] - 1 + 0*8, left_type[LTOP])\
MAP_F2F(scan8[0] - 1 + 1*8, left_type[LTOP])\
MAP_F2F(scan8[0] - 1 + 2*8, left_type[LBOT])\
MAP_F2F(scan8[0] - 1 + 3*8, left_type[LBOT])
if(MB_FIELD){
#define MAP_F2F(idx, mb_type)\
if(!IS_INTERLACED(mb_type) && h->ref_cache[list][idx] >= 0){\
h->ref_cache[list][idx] <<= 1;\
h->mv_cache[list][idx][1] /= 2;\
h->mvd_cache[list][idx][1] >>=1;\
}
MAP_MVS
#undef MAP_F2F
}else{
#define MAP_F2F(idx, mb_type)\
if(IS_INTERLACED(mb_type) && h->ref_cache[list][idx] >= 0){\
h->ref_cache[list][idx] >>= 1;\
h->mv_cache[list][idx][1] <<= 1;\
h->mvd_cache[list][idx][1] <<= 1;\
}
MAP_MVS
#undef MAP_F2F
}
}
}
}
h->neighbor_transform_size= !!IS_8x8DCT(top_type) + !!IS_8x8DCT(left_type[LTOP]);
} | ['static void av_unused decode_mb_skip(H264Context *h){\n MpegEncContext * const s = &h->s;\n const int mb_xy= h->mb_xy;\n int mb_type=0;\n memset(h->non_zero_count[mb_xy], 0, 48);\n if(MB_FIELD)\n mb_type|= MB_TYPE_INTERLACED;\n if( h->slice_type_nos == AV_PICTURE_TYPE_B )\n {\n mb_type|= MB_TYPE_L0L1|MB_TYPE_DIRECT2|MB_TYPE_SKIP;\n if(h->direct_spatial_mv_pred){\n fill_decode_neighbors(h, mb_type);\n fill_decode_caches(h, mb_type);\n }\n ff_h264_pred_direct_motion(h, &mb_type);\n mb_type|= MB_TYPE_SKIP;\n }\n else\n {\n mb_type|= MB_TYPE_16x16|MB_TYPE_P0L0|MB_TYPE_P1L0|MB_TYPE_SKIP;\n fill_decode_neighbors(h, mb_type);\n pred_pskip_motion(h);\n }\n write_back_motion(h, mb_type);\n s->current_picture.f.mb_type[mb_xy] = mb_type;\n s->current_picture.f.qscale_table[mb_xy] = s->qscale;\n h->slice_table[ mb_xy ]= h->slice_num;\n h->prev_mb_skipped= 1;\n}', 'static void fill_decode_neighbors(H264Context *h, int mb_type){\n MpegEncContext * const s = &h->s;\n const int mb_xy= h->mb_xy;\n int topleft_xy, top_xy, topright_xy, left_xy[LEFT_MBS];\n static const uint8_t left_block_options[4][32]={\n {0,1,2,3,7,10,8,11,3+0*4, 3+1*4, 3+2*4, 3+3*4, 1+4*4, 1+8*4, 1+5*4, 1+9*4},\n {2,2,3,3,8,11,8,11,3+2*4, 3+2*4, 3+3*4, 3+3*4, 1+5*4, 1+9*4, 1+5*4, 1+9*4},\n {0,0,1,1,7,10,7,10,3+0*4, 3+0*4, 3+1*4, 3+1*4, 1+4*4, 1+8*4, 1+4*4, 1+8*4},\n {0,2,0,2,7,10,7,10,3+0*4, 3+2*4, 3+0*4, 3+2*4, 1+4*4, 1+8*4, 1+4*4, 1+8*4}\n };\n h->topleft_partition= -1;\n top_xy = mb_xy - (s->mb_stride << MB_FIELD);\n topleft_xy = top_xy - 1;\n topright_xy= top_xy + 1;\n left_xy[LBOT] = left_xy[LTOP] = mb_xy-1;\n h->left_block = left_block_options[0];\n if(FRAME_MBAFF){\n const int left_mb_field_flag = IS_INTERLACED(s->current_picture.f.mb_type[mb_xy - 1]);\n const int curr_mb_field_flag = IS_INTERLACED(mb_type);\n if(s->mb_y&1){\n if (left_mb_field_flag != curr_mb_field_flag) {\n left_xy[LBOT] = left_xy[LTOP] = mb_xy - s->mb_stride - 1;\n if (curr_mb_field_flag) {\n left_xy[LBOT] += s->mb_stride;\n h->left_block = left_block_options[3];\n } else {\n topleft_xy += s->mb_stride;\n h->topleft_partition = 0;\n h->left_block = left_block_options[1];\n }\n }\n }else{\n if(curr_mb_field_flag){\n topleft_xy += s->mb_stride & (((s->current_picture.f.mb_type[top_xy - 1] >> 7) & 1) - 1);\n topright_xy += s->mb_stride & (((s->current_picture.f.mb_type[top_xy + 1] >> 7) & 1) - 1);\n top_xy += s->mb_stride & (((s->current_picture.f.mb_type[top_xy ] >> 7) & 1) - 1);\n }\n if (left_mb_field_flag != curr_mb_field_flag) {\n if (curr_mb_field_flag) {\n left_xy[LBOT] += s->mb_stride;\n h->left_block = left_block_options[3];\n } else {\n h->left_block = left_block_options[2];\n }\n }\n }\n }\n h->topleft_mb_xy = topleft_xy;\n h->top_mb_xy = top_xy;\n h->topright_mb_xy= topright_xy;\n h->left_mb_xy[LTOP] = left_xy[LTOP];\n h->left_mb_xy[LBOT] = left_xy[LBOT];\n h->topleft_type = s->current_picture.f.mb_type[topleft_xy];\n h->top_type = s->current_picture.f.mb_type[top_xy];\n h->topright_type = s->current_picture.f.mb_type[topright_xy];\n h->left_type[LTOP] = s->current_picture.f.mb_type[left_xy[LTOP]];\n h->left_type[LBOT] = s->current_picture.f.mb_type[left_xy[LBOT]];\n if(FMO){\n if(h->slice_table[topleft_xy ] != h->slice_num) h->topleft_type = 0;\n if(h->slice_table[top_xy ] != h->slice_num) h->top_type = 0;\n if(h->slice_table[left_xy[LTOP] ] != h->slice_num) h->left_type[LTOP] = h->left_type[LBOT] = 0;\n }else{\n if(h->slice_table[topleft_xy ] != h->slice_num){\n h->topleft_type = 0;\n if(h->slice_table[top_xy ] != h->slice_num) h->top_type = 0;\n if(h->slice_table[left_xy[LTOP] ] != h->slice_num) h->left_type[LTOP] = h->left_type[LBOT] = 0;\n }\n }\n if(h->slice_table[topright_xy] != h->slice_num) h->topright_type= 0;\n}', 'static void fill_decode_caches(H264Context *h, int mb_type){\n MpegEncContext * const s = &h->s;\n int topleft_xy, top_xy, topright_xy, left_xy[LEFT_MBS];\n int topleft_type, top_type, topright_type, left_type[LEFT_MBS];\n const uint8_t * left_block= h->left_block;\n int i;\n uint8_t *nnz;\n uint8_t *nnz_cache;\n topleft_xy = h->topleft_mb_xy;\n top_xy = h->top_mb_xy;\n topright_xy = h->topright_mb_xy;\n left_xy[LTOP] = h->left_mb_xy[LTOP];\n left_xy[LBOT] = h->left_mb_xy[LBOT];\n topleft_type = h->topleft_type;\n top_type = h->top_type;\n topright_type = h->topright_type;\n left_type[LTOP]= h->left_type[LTOP];\n left_type[LBOT]= h->left_type[LBOT];\n if(!IS_SKIP(mb_type)){\n if(IS_INTRA(mb_type)){\n int type_mask= h->pps.constrained_intra_pred ? IS_INTRA(-1) : -1;\n h->topleft_samples_available=\n h->top_samples_available=\n h->left_samples_available= 0xFFFF;\n h->topright_samples_available= 0xEEEA;\n if(!(top_type & type_mask)){\n h->topleft_samples_available= 0xB3FF;\n h->top_samples_available= 0x33FF;\n h->topright_samples_available= 0x26EA;\n }\n if(IS_INTERLACED(mb_type) != IS_INTERLACED(left_type[LTOP])){\n if(IS_INTERLACED(mb_type)){\n if(!(left_type[LTOP] & type_mask)){\n h->topleft_samples_available&= 0xDFFF;\n h->left_samples_available&= 0x5FFF;\n }\n if(!(left_type[LBOT] & type_mask)){\n h->topleft_samples_available&= 0xFF5F;\n h->left_samples_available&= 0xFF5F;\n }\n }else{\n int left_typei = s->current_picture.f.mb_type[left_xy[LTOP] + s->mb_stride];\n assert(left_xy[LTOP] == left_xy[LBOT]);\n if(!((left_typei & type_mask) && (left_type[LTOP] & type_mask))){\n h->topleft_samples_available&= 0xDF5F;\n h->left_samples_available&= 0x5F5F;\n }\n }\n }else{\n if(!(left_type[LTOP] & type_mask)){\n h->topleft_samples_available&= 0xDF5F;\n h->left_samples_available&= 0x5F5F;\n }\n }\n if(!(topleft_type & type_mask))\n h->topleft_samples_available&= 0x7FFF;\n if(!(topright_type & type_mask))\n h->topright_samples_available&= 0xFBFF;\n if(IS_INTRA4x4(mb_type)){\n if(IS_INTRA4x4(top_type)){\n AV_COPY32(h->intra4x4_pred_mode_cache+4+8*0, h->intra4x4_pred_mode + h->mb2br_xy[top_xy]);\n }else{\n h->intra4x4_pred_mode_cache[4+8*0]=\n h->intra4x4_pred_mode_cache[5+8*0]=\n h->intra4x4_pred_mode_cache[6+8*0]=\n h->intra4x4_pred_mode_cache[7+8*0]= 2 - 3*!(top_type & type_mask);\n }\n for(i=0; i<2; i++){\n if(IS_INTRA4x4(left_type[LEFT(i)])){\n int8_t *mode= h->intra4x4_pred_mode + h->mb2br_xy[left_xy[LEFT(i)]];\n h->intra4x4_pred_mode_cache[3+8*1 + 2*8*i]= mode[6-left_block[0+2*i]];\n h->intra4x4_pred_mode_cache[3+8*2 + 2*8*i]= mode[6-left_block[1+2*i]];\n }else{\n h->intra4x4_pred_mode_cache[3+8*1 + 2*8*i]=\n h->intra4x4_pred_mode_cache[3+8*2 + 2*8*i]= 2 - 3*!(left_type[LEFT(i)] & type_mask);\n }\n }\n }\n }\n nnz_cache = h->non_zero_count_cache;\n if(top_type){\n nnz = h->non_zero_count[top_xy];\n AV_COPY32(&nnz_cache[4+8* 0], &nnz[4*3]);\n if(CHROMA444){\n AV_COPY32(&nnz_cache[4+8* 5], &nnz[4* 7]);\n AV_COPY32(&nnz_cache[4+8*10], &nnz[4*11]);\n }else{\n AV_COPY32(&nnz_cache[4+8* 5], &nnz[4* 5]);\n AV_COPY32(&nnz_cache[4+8*10], &nnz[4* 9]);\n }\n }else{\n uint32_t top_empty = CABAC && !IS_INTRA(mb_type) ? 0 : 0x40404040;\n AV_WN32A(&nnz_cache[4+8* 0], top_empty);\n AV_WN32A(&nnz_cache[4+8* 5], top_empty);\n AV_WN32A(&nnz_cache[4+8*10], top_empty);\n }\n for (i=0; i<2; i++) {\n if(left_type[LEFT(i)]){\n nnz = h->non_zero_count[left_xy[LEFT(i)]];\n nnz_cache[3+8* 1 + 2*8*i]= nnz[left_block[8+0+2*i]];\n nnz_cache[3+8* 2 + 2*8*i]= nnz[left_block[8+1+2*i]];\n if(CHROMA444){\n nnz_cache[3+8* 6 + 2*8*i]= nnz[left_block[8+0+2*i]+4*4];\n nnz_cache[3+8* 7 + 2*8*i]= nnz[left_block[8+1+2*i]+4*4];\n nnz_cache[3+8*11 + 2*8*i]= nnz[left_block[8+0+2*i]+8*4];\n nnz_cache[3+8*12 + 2*8*i]= nnz[left_block[8+1+2*i]+8*4];\n }else{\n nnz_cache[3+8* 6 + 8*i]= nnz[left_block[8+4+2*i]];\n nnz_cache[3+8*11 + 8*i]= nnz[left_block[8+5+2*i]];\n }\n }else{\n nnz_cache[3+8* 1 + 2*8*i]=\n nnz_cache[3+8* 2 + 2*8*i]=\n nnz_cache[3+8* 6 + 2*8*i]=\n nnz_cache[3+8* 7 + 2*8*i]=\n nnz_cache[3+8*11 + 2*8*i]=\n nnz_cache[3+8*12 + 2*8*i]= CABAC && !IS_INTRA(mb_type) ? 0 : 64;\n }\n }\n if( CABAC ) {\n if(top_type) {\n h->top_cbp = h->cbp_table[top_xy];\n } else {\n h->top_cbp = IS_INTRA(mb_type) ? 0x7CF : 0x00F;\n }\n if (left_type[LTOP]) {\n h->left_cbp = (h->cbp_table[left_xy[LTOP]] & 0x7F0)\n | ((h->cbp_table[left_xy[LTOP]]>>(left_block[0]&(~1)))&2)\n | (((h->cbp_table[left_xy[LBOT]]>>(left_block[2]&(~1)))&2) << 2);\n } else {\n h->left_cbp = IS_INTRA(mb_type) ? 0x7CF : 0x00F;\n }\n }\n }\n if(IS_INTER(mb_type) || (IS_DIRECT(mb_type) && h->direct_spatial_mv_pred)){\n int list;\n int b_stride = h->b_stride;\n for(list=0; list<h->list_count; list++){\n int8_t *ref_cache = &h->ref_cache[list][scan8[0]];\n int8_t *ref = s->current_picture.f.ref_index[list];\n int16_t (*mv_cache)[2] = &h->mv_cache[list][scan8[0]];\n int16_t (*mv)[2] = s->current_picture.f.motion_val[list];\n if(!USES_LIST(mb_type, list)){\n continue;\n }\n assert(!(IS_DIRECT(mb_type) && !h->direct_spatial_mv_pred));\n if(USES_LIST(top_type, list)){\n const int b_xy= h->mb2b_xy[top_xy] + 3*b_stride;\n AV_COPY128(mv_cache[0 - 1*8], mv[b_xy + 0]);\n ref_cache[0 - 1*8]=\n ref_cache[1 - 1*8]= ref[4*top_xy + 2];\n ref_cache[2 - 1*8]=\n ref_cache[3 - 1*8]= ref[4*top_xy + 3];\n }else{\n AV_ZERO128(mv_cache[0 - 1*8]);\n AV_WN32A(&ref_cache[0 - 1*8], ((top_type ? LIST_NOT_USED : PART_NOT_AVAILABLE)&0xFF)*0x01010101);\n }\n if(mb_type & (MB_TYPE_16x8|MB_TYPE_8x8)){\n for(i=0; i<2; i++){\n int cache_idx = -1 + i*2*8;\n if(USES_LIST(left_type[LEFT(i)], list)){\n const int b_xy= h->mb2b_xy[left_xy[LEFT(i)]] + 3;\n const int b8_xy= 4*left_xy[LEFT(i)] + 1;\n AV_COPY32(mv_cache[cache_idx ], mv[b_xy + b_stride*left_block[0+i*2]]);\n AV_COPY32(mv_cache[cache_idx+8], mv[b_xy + b_stride*left_block[1+i*2]]);\n ref_cache[cache_idx ]= ref[b8_xy + (left_block[0+i*2]&~1)];\n ref_cache[cache_idx+8]= ref[b8_xy + (left_block[1+i*2]&~1)];\n }else{\n AV_ZERO32(mv_cache[cache_idx ]);\n AV_ZERO32(mv_cache[cache_idx+8]);\n ref_cache[cache_idx ]=\n ref_cache[cache_idx+8]= (left_type[LEFT(i)]) ? LIST_NOT_USED : PART_NOT_AVAILABLE;\n }\n }\n }else{\n if(USES_LIST(left_type[LTOP], list)){\n const int b_xy= h->mb2b_xy[left_xy[LTOP]] + 3;\n const int b8_xy= 4*left_xy[LTOP] + 1;\n AV_COPY32(mv_cache[-1], mv[b_xy + b_stride*left_block[0]]);\n ref_cache[-1]= ref[b8_xy + (left_block[0]&~1)];\n }else{\n AV_ZERO32(mv_cache[-1]);\n ref_cache[-1]= left_type[LTOP] ? LIST_NOT_USED : PART_NOT_AVAILABLE;\n }\n }\n if(USES_LIST(topright_type, list)){\n const int b_xy= h->mb2b_xy[topright_xy] + 3*b_stride;\n AV_COPY32(mv_cache[4 - 1*8], mv[b_xy]);\n ref_cache[4 - 1*8]= ref[4*topright_xy + 2];\n }else{\n AV_ZERO32(mv_cache[4 - 1*8]);\n ref_cache[4 - 1*8]= topright_type ? LIST_NOT_USED : PART_NOT_AVAILABLE;\n }\n if(ref_cache[4 - 1*8] < 0){\n if(USES_LIST(topleft_type, list)){\n const int b_xy = h->mb2b_xy[topleft_xy] + 3 + b_stride + (h->topleft_partition & 2*b_stride);\n const int b8_xy= 4*topleft_xy + 1 + (h->topleft_partition & 2);\n AV_COPY32(mv_cache[-1 - 1*8], mv[b_xy]);\n ref_cache[-1 - 1*8]= ref[b8_xy];\n }else{\n AV_ZERO32(mv_cache[-1 - 1*8]);\n ref_cache[-1 - 1*8]= topleft_type ? LIST_NOT_USED : PART_NOT_AVAILABLE;\n }\n }\n if((mb_type&(MB_TYPE_SKIP|MB_TYPE_DIRECT2)) && !FRAME_MBAFF)\n continue;\n if(!(mb_type&(MB_TYPE_SKIP|MB_TYPE_DIRECT2))){\n uint8_t (*mvd_cache)[2] = &h->mvd_cache[list][scan8[0]];\n uint8_t (*mvd)[2] = h->mvd_table[list];\n ref_cache[2+8*0] =\n ref_cache[2+8*2] = PART_NOT_AVAILABLE;\n AV_ZERO32(mv_cache[2+8*0]);\n AV_ZERO32(mv_cache[2+8*2]);\n if( CABAC ) {\n if(USES_LIST(top_type, list)){\n const int b_xy= h->mb2br_xy[top_xy];\n AV_COPY64(mvd_cache[0 - 1*8], mvd[b_xy + 0]);\n }else{\n AV_ZERO64(mvd_cache[0 - 1*8]);\n }\n if(USES_LIST(left_type[LTOP], list)){\n const int b_xy= h->mb2br_xy[left_xy[LTOP]] + 6;\n AV_COPY16(mvd_cache[-1 + 0*8], mvd[b_xy - left_block[0]]);\n AV_COPY16(mvd_cache[-1 + 1*8], mvd[b_xy - left_block[1]]);\n }else{\n AV_ZERO16(mvd_cache[-1 + 0*8]);\n AV_ZERO16(mvd_cache[-1 + 1*8]);\n }\n if(USES_LIST(left_type[LBOT], list)){\n const int b_xy= h->mb2br_xy[left_xy[LBOT]] + 6;\n AV_COPY16(mvd_cache[-1 + 2*8], mvd[b_xy - left_block[2]]);\n AV_COPY16(mvd_cache[-1 + 3*8], mvd[b_xy - left_block[3]]);\n }else{\n AV_ZERO16(mvd_cache[-1 + 2*8]);\n AV_ZERO16(mvd_cache[-1 + 3*8]);\n }\n AV_ZERO16(mvd_cache[2+8*0]);\n AV_ZERO16(mvd_cache[2+8*2]);\n if(h->slice_type_nos == AV_PICTURE_TYPE_B){\n uint8_t *direct_cache = &h->direct_cache[scan8[0]];\n uint8_t *direct_table = h->direct_table;\n fill_rectangle(direct_cache, 4, 4, 8, MB_TYPE_16x16>>1, 1);\n if(IS_DIRECT(top_type)){\n AV_WN32A(&direct_cache[-1*8], 0x01010101u*(MB_TYPE_DIRECT2>>1));\n }else if(IS_8X8(top_type)){\n int b8_xy = 4*top_xy;\n direct_cache[0 - 1*8]= direct_table[b8_xy + 2];\n direct_cache[2 - 1*8]= direct_table[b8_xy + 3];\n }else{\n AV_WN32A(&direct_cache[-1*8], 0x01010101*(MB_TYPE_16x16>>1));\n }\n if(IS_DIRECT(left_type[LTOP]))\n direct_cache[-1 + 0*8]= MB_TYPE_DIRECT2>>1;\n else if(IS_8X8(left_type[LTOP]))\n direct_cache[-1 + 0*8]= direct_table[4*left_xy[LTOP] + 1 + (left_block[0]&~1)];\n else\n direct_cache[-1 + 0*8]= MB_TYPE_16x16>>1;\n if(IS_DIRECT(left_type[LBOT]))\n direct_cache[-1 + 2*8]= MB_TYPE_DIRECT2>>1;\n else if(IS_8X8(left_type[LBOT]))\n direct_cache[-1 + 2*8]= direct_table[4*left_xy[LBOT] + 1 + (left_block[2]&~1)];\n else\n direct_cache[-1 + 2*8]= MB_TYPE_16x16>>1;\n }\n }\n }\n if(FRAME_MBAFF){\n#define MAP_MVS\\\n MAP_F2F(scan8[0] - 1 - 1*8, topleft_type)\\\n MAP_F2F(scan8[0] + 0 - 1*8, top_type)\\\n MAP_F2F(scan8[0] + 1 - 1*8, top_type)\\\n MAP_F2F(scan8[0] + 2 - 1*8, top_type)\\\n MAP_F2F(scan8[0] + 3 - 1*8, top_type)\\\n MAP_F2F(scan8[0] + 4 - 1*8, topright_type)\\\n MAP_F2F(scan8[0] - 1 + 0*8, left_type[LTOP])\\\n MAP_F2F(scan8[0] - 1 + 1*8, left_type[LTOP])\\\n MAP_F2F(scan8[0] - 1 + 2*8, left_type[LBOT])\\\n MAP_F2F(scan8[0] - 1 + 3*8, left_type[LBOT])\n if(MB_FIELD){\n#define MAP_F2F(idx, mb_type)\\\n if(!IS_INTERLACED(mb_type) && h->ref_cache[list][idx] >= 0){\\\n h->ref_cache[list][idx] <<= 1;\\\n h->mv_cache[list][idx][1] /= 2;\\\n h->mvd_cache[list][idx][1] >>=1;\\\n }\n MAP_MVS\n#undef MAP_F2F\n }else{\n#define MAP_F2F(idx, mb_type)\\\n if(IS_INTERLACED(mb_type) && h->ref_cache[list][idx] >= 0){\\\n h->ref_cache[list][idx] >>= 1;\\\n h->mv_cache[list][idx][1] <<= 1;\\\n h->mvd_cache[list][idx][1] <<= 1;\\\n }\n MAP_MVS\n#undef MAP_F2F\n }\n }\n }\n }\n h->neighbor_transform_size= !!IS_8x8DCT(top_type) + !!IS_8x8DCT(left_type[LTOP]);\n}'] |
23,143 | 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)];
} | ['int BN_mod_exp2_mont(BIGNUM *rr, const BIGNUM *a1, const BIGNUM *p1,\n const BIGNUM *a2, const BIGNUM *p2, const BIGNUM *m,\n BN_CTX *ctx, BN_MONT_CTX *in_mont)\n{\n int i, j, bits, b, bits1, bits2, ret =\n 0, wpos1, wpos2, window1, window2, wvalue1, wvalue2;\n int r_is_one = 1;\n BIGNUM *d, *r;\n const BIGNUM *a_mod_m;\n BIGNUM *val1[TABLE_SIZE], *val2[TABLE_SIZE];\n BN_MONT_CTX *mont = NULL;\n bn_check_top(a1);\n bn_check_top(p1);\n bn_check_top(a2);\n bn_check_top(p2);\n bn_check_top(m);\n if (!(m->d[0] & 1)) {\n BNerr(BN_F_BN_MOD_EXP2_MONT, BN_R_CALLED_WITH_EVEN_MODULUS);\n return 0;\n }\n bits1 = BN_num_bits(p1);\n bits2 = BN_num_bits(p2);\n if ((bits1 == 0) && (bits2 == 0)) {\n ret = BN_one(rr);\n return ret;\n }\n bits = (bits1 > bits2) ? bits1 : bits2;\n BN_CTX_start(ctx);\n d = BN_CTX_get(ctx);\n r = BN_CTX_get(ctx);\n val1[0] = BN_CTX_get(ctx);\n val2[0] = BN_CTX_get(ctx);\n if (val2[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 window1 = BN_window_bits_for_exponent_size(bits1);\n window2 = BN_window_bits_for_exponent_size(bits2);\n if (a1->neg || BN_ucmp(a1, m) >= 0) {\n if (!BN_mod(val1[0], a1, m, ctx))\n goto err;\n a_mod_m = val1[0];\n } else\n a_mod_m = a1;\n if (BN_is_zero(a_mod_m)) {\n BN_zero(rr);\n ret = 1;\n goto err;\n }\n if (!BN_to_montgomery(val1[0], a_mod_m, mont, ctx))\n goto err;\n if (window1 > 1) {\n if (!BN_mod_mul_montgomery(d, val1[0], val1[0], mont, ctx))\n goto err;\n j = 1 << (window1 - 1);\n for (i = 1; i < j; i++) {\n if (((val1[i] = BN_CTX_get(ctx)) == NULL) ||\n !BN_mod_mul_montgomery(val1[i], val1[i - 1], d, mont, ctx))\n goto err;\n }\n }\n if (a2->neg || BN_ucmp(a2, m) >= 0) {\n if (!BN_mod(val2[0], a2, m, ctx))\n goto err;\n a_mod_m = val2[0];\n } else\n a_mod_m = a2;\n if (BN_is_zero(a_mod_m)) {\n BN_zero(rr);\n ret = 1;\n goto err;\n }\n if (!BN_to_montgomery(val2[0], a_mod_m, mont, ctx))\n goto err;\n if (window2 > 1) {\n if (!BN_mod_mul_montgomery(d, val2[0], val2[0], mont, ctx))\n goto err;\n j = 1 << (window2 - 1);\n for (i = 1; i < j; i++) {\n if (((val2[i] = BN_CTX_get(ctx)) == NULL) ||\n !BN_mod_mul_montgomery(val2[i], val2[i - 1], d, mont, ctx))\n goto err;\n }\n }\n r_is_one = 1;\n wvalue1 = 0;\n wvalue2 = 0;\n wpos1 = 0;\n wpos2 = 0;\n if (!BN_to_montgomery(r, BN_value_one(), mont, ctx))\n goto err;\n for (b = bits - 1; b >= 0; b--) {\n if (!r_is_one) {\n if (!BN_mod_mul_montgomery(r, r, r, mont, ctx))\n goto err;\n }\n if (!wvalue1)\n if (BN_is_bit_set(p1, b)) {\n i = b - window1 + 1;\n while (!BN_is_bit_set(p1, i))\n i++;\n wpos1 = i;\n wvalue1 = 1;\n for (i = b - 1; i >= wpos1; i--) {\n wvalue1 <<= 1;\n if (BN_is_bit_set(p1, i))\n wvalue1++;\n }\n }\n if (!wvalue2)\n if (BN_is_bit_set(p2, b)) {\n i = b - window2 + 1;\n while (!BN_is_bit_set(p2, i))\n i++;\n wpos2 = i;\n wvalue2 = 1;\n for (i = b - 1; i >= wpos2; i--) {\n wvalue2 <<= 1;\n if (BN_is_bit_set(p2, i))\n wvalue2++;\n }\n }\n if (wvalue1 && b == wpos1) {\n if (!BN_mod_mul_montgomery(r, r, val1[wvalue1 >> 1], mont, ctx))\n goto err;\n wvalue1 = 0;\n r_is_one = 0;\n }\n if (wvalue2 && b == wpos2) {\n if (!BN_mod_mul_montgomery(r, r, val2[wvalue2 >> 1], mont, ctx))\n goto err;\n wvalue2 = 0;\n r_is_one = 0;\n }\n }\n if (!BN_from_montgomery(rr, r, mont, ctx))\n goto err;\n ret = 1;\n err:\n if (in_mont == NULL)\n BN_MONT_CTX_free(mont);\n BN_CTX_end(ctx);\n bn_check_top(rr);\n return ret;\n}', 'void BN_CTX_start(BN_CTX *ctx)\n{\n CTXDBG_ENTRY("BN_CTX_start", ctx);\n if (ctx->err_stack || ctx->too_many)\n ctx->err_stack++;\n else if (!BN_STACK_push(&ctx->stack, ctx->used)) {\n BNerr(BN_F_BN_CTX_START, BN_R_TOO_MANY_TEMPORARY_VARIABLES);\n ctx->err_stack++;\n }\n CTXDBG_EXIT(ctx);\n}', 'int BN_to_montgomery(BIGNUM *r, const BIGNUM *a, BN_MONT_CTX *mont,\n BN_CTX *ctx)\n{\n return BN_mod_mul_montgomery(r, a, &(mont->RR), mont, ctx);\n}', 'int BN_mod_mul_montgomery(BIGNUM *r, const BIGNUM *a, const BIGNUM *b,\n BN_MONT_CTX *mont, BN_CTX *ctx)\n{\n int ret = bn_mul_mont_fixed_top(r, a, b, mont, ctx);\n bn_correct_top(r);\n bn_check_top(r);\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(tmp, a, ctx))\n goto err;\n } else {\n if (!BN_mul(tmp, a, b, ctx))\n goto err;\n }\n#ifdef MONT_WORD\n if (!bn_from_montgomery_word(r, tmp, mont))\n goto err;\n#else\n if (!BN_from_montgomery(r, tmp, mont, ctx))\n goto err;\n#endif\n ret = 1;\n err:\n BN_CTX_end(ctx);\n return ret;\n}', 'int BN_sqr(BIGNUM *r, const BIGNUM *a, BN_CTX *ctx)\n{\n int max, al;\n int ret = 0;\n BIGNUM *tmp, *rr;\n bn_check_top(a);\n al = a->top;\n if (al <= 0) {\n r->top = 0;\n r->neg = 0;\n return 1;\n }\n BN_CTX_start(ctx);\n rr = (a != r) ? r : BN_CTX_get(ctx);\n tmp = BN_CTX_get(ctx);\n if (rr == NULL || tmp == NULL)\n goto err;\n max = 2 * al;\n if (bn_wexpand(rr, max) == NULL)\n goto err;\n if (al == 4) {\n#ifndef BN_SQR_COMBA\n BN_ULONG t[8];\n bn_sqr_normal(rr->d, a->d, 4, t);\n#else\n bn_sqr_comba4(rr->d, a->d);\n#endif\n } else if (al == 8) {\n#ifndef BN_SQR_COMBA\n BN_ULONG t[16];\n bn_sqr_normal(rr->d, a->d, 8, t);\n#else\n bn_sqr_comba8(rr->d, a->d);\n#endif\n } else {\n#if defined(BN_RECURSION)\n if (al < BN_SQR_RECURSIVE_SIZE_NORMAL) {\n BN_ULONG t[BN_SQR_RECURSIVE_SIZE_NORMAL * 2];\n bn_sqr_normal(rr->d, a->d, al, t);\n } else {\n int j, k;\n j = BN_num_bits_word((BN_ULONG)al);\n j = 1 << (j - 1);\n k = j + j;\n if (al == j) {\n if (bn_wexpand(tmp, k * 2) == NULL)\n goto err;\n bn_sqr_recursive(rr->d, a->d, al, tmp->d);\n } else {\n if (bn_wexpand(tmp, max) == NULL)\n goto err;\n bn_sqr_normal(rr->d, a->d, al, tmp->d);\n }\n }\n#else\n if (bn_wexpand(tmp, max) == NULL)\n goto err;\n bn_sqr_normal(rr->d, a->d, al, tmp->d);\n#endif\n }\n rr->neg = 0;\n rr->top = max;\n bn_correct_top(rr);\n if (r != rr && BN_copy(r, rr) == NULL)\n goto err;\n ret = 1;\n err:\n bn_check_top(rr);\n bn_check_top(tmp);\n BN_CTX_end(ctx);\n return ret;\n}', 'void BN_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}'] |
23,144 | 0 | https://github.com/openssl/openssl/blob/18e1e302452e6dea4500b6f981cee7e151294dea/crypto/bn/bn_ctx.c/#L340 | static void BN_POOL_release(BN_POOL *p, unsigned int num)
{
unsigned int offset = (p->used - 1) % BN_CTX_POOL_SIZE;
p->used -= num;
while (num--) {
bn_check_top(p->current->vals + offset);
if (offset == 0) {
offset = BN_CTX_POOL_SIZE - 1;
p->current = p->current->prev;
} else
offset--;
}
} | ['int BN_mod_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}', 'BIGNUM *BN_CTX_get(BN_CTX *ctx)\n{\n BIGNUM *ret;\n CTXDBG("ENTER BN_CTX_get()", ctx);\n if (ctx->err_stack || ctx->too_many)\n return NULL;\n if ((ret = BN_POOL_get(&ctx->pool, ctx->flags)) == NULL) {\n ctx->too_many = 1;\n BNerr(BN_F_BN_CTX_GET, BN_R_TOO_MANY_TEMPORARY_VARIABLES);\n return NULL;\n }\n BN_zero(ret);\n ret->flags &= (~BN_FLG_CONSTTIME);\n ctx->used++;\n CTXDBG("LEAVE BN_CTX_get()", ctx);\n return ret;\n}', 'void BN_CTX_end(BN_CTX *ctx)\n{\n CTXDBG("ENTER BN_CTX_end()", ctx);\n if (ctx->err_stack)\n ctx->err_stack--;\n else {\n unsigned int fp = BN_STACK_pop(&ctx->stack);\n if (fp < ctx->used)\n BN_POOL_release(&ctx->pool, ctx->used - fp);\n ctx->used = fp;\n ctx->too_many = 0;\n }\n CTXDBG("LEAVE BN_CTX_end()", ctx);\n}', 'static void BN_POOL_release(BN_POOL *p, unsigned int num)\n{\n unsigned int offset = (p->used - 1) % BN_CTX_POOL_SIZE;\n p->used -= num;\n while (num--) {\n bn_check_top(p->current->vals + offset);\n if (offset == 0) {\n offset = BN_CTX_POOL_SIZE - 1;\n p->current = p->current->prev;\n } else\n offset--;\n }\n}'] |
23,145 | 0 | https://github.com/libav/libav/blob/6cecd63005b29a1dc3a5104e6ac85fd112705122/libavcodec/mlpdec.c/#L1058 | static int read_access_unit(AVCodecContext *avctx, void* data, int *data_size,
AVPacket *avpkt)
{
const uint8_t *buf = avpkt->data;
int buf_size = avpkt->size;
MLPDecodeContext *m = avctx->priv_data;
GetBitContext gb;
unsigned int length, substr;
unsigned int substream_start;
unsigned int header_size = 4;
unsigned int substr_header_size = 0;
uint8_t substream_parity_present[MAX_SUBSTREAMS];
uint16_t substream_data_len[MAX_SUBSTREAMS];
uint8_t parity_bits;
if (buf_size < 4)
return 0;
length = (AV_RB16(buf) & 0xfff) * 2;
if (length > buf_size)
return -1;
init_get_bits(&gb, (buf + 4), (length - 4) * 8);
m->is_major_sync_unit = 0;
if (show_bits_long(&gb, 31) == (0xf8726fba >> 1)) {
if (read_major_sync(m, &gb) < 0)
goto error;
m->is_major_sync_unit = 1;
header_size += 28;
}
if (!m->params_valid) {
av_log(m->avctx, AV_LOG_WARNING,
"Stream parameters not seen; skipping frame.\n");
*data_size = 0;
return length;
}
substream_start = 0;
for (substr = 0; substr < m->num_substreams; substr++) {
int extraword_present, checkdata_present, end, nonrestart_substr;
extraword_present = get_bits1(&gb);
nonrestart_substr = get_bits1(&gb);
checkdata_present = get_bits1(&gb);
skip_bits1(&gb);
end = get_bits(&gb, 12) * 2;
substr_header_size += 2;
if (extraword_present) {
if (m->avctx->codec_id == CODEC_ID_MLP) {
av_log(m->avctx, AV_LOG_ERROR, "There must be no extraword for MLP.\n");
goto error;
}
skip_bits(&gb, 16);
substr_header_size += 2;
}
if (!(nonrestart_substr ^ m->is_major_sync_unit)) {
av_log(m->avctx, AV_LOG_ERROR, "Invalid nonrestart_substr.\n");
goto error;
}
if (end + header_size + substr_header_size > length) {
av_log(m->avctx, AV_LOG_ERROR,
"Indicated length of substream %d data goes off end of "
"packet.\n", substr);
end = length - header_size - substr_header_size;
}
if (end < substream_start) {
av_log(avctx, AV_LOG_ERROR,
"Indicated end offset of substream %d data "
"is smaller than calculated start offset.\n",
substr);
goto error;
}
if (substr > m->max_decoded_substream)
continue;
substream_parity_present[substr] = checkdata_present;
substream_data_len[substr] = end - substream_start;
substream_start = end;
}
parity_bits = ff_mlp_calculate_parity(buf, 4);
parity_bits ^= ff_mlp_calculate_parity(buf + header_size, substr_header_size);
if ((((parity_bits >> 4) ^ parity_bits) & 0xF) != 0xF) {
av_log(avctx, AV_LOG_ERROR, "Parity check failed.\n");
goto error;
}
buf += header_size + substr_header_size;
for (substr = 0; substr <= m->max_decoded_substream; substr++) {
SubStream *s = &m->substream[substr];
init_get_bits(&gb, buf, substream_data_len[substr] * 8);
m->matrix_changed = 0;
memset(m->filter_changed, 0, sizeof(m->filter_changed));
s->blockpos = 0;
do {
unsigned int ch;
if (get_bits1(&gb)) {
if (get_bits1(&gb)) {
if (read_restart_header(m, &gb, buf, substr) < 0)
goto next_substr;
s->restart_seen = 1;
}
if (!s->restart_seen) {
goto next_substr;
}
if (read_decoding_params(m, &gb, substr) < 0)
goto next_substr;
}
if (m->matrix_changed > 1) {
av_log(m->avctx, AV_LOG_ERROR, "Matrices may change only once per access unit.\n");
goto next_substr;
}
for (ch = 0; ch < s->max_channel; ch++)
if (m->filter_changed[ch][FIR] > 1 ||
m->filter_changed[ch][IIR] > 1) {
av_log(m->avctx, AV_LOG_ERROR, "Filters may change only once per access unit.\n");
goto next_substr;
}
if (!s->restart_seen) {
goto next_substr;
}
if (read_block_data(m, &gb, substr) < 0)
return -1;
if (get_bits_count(&gb) >= substream_data_len[substr] * 8)
goto substream_length_mismatch;
} while (!get_bits1(&gb));
skip_bits(&gb, (-get_bits_count(&gb)) & 15);
if (substream_data_len[substr] * 8 - get_bits_count(&gb) >= 32) {
int shorten_by;
if (get_bits(&gb, 16) != 0xD234)
return -1;
shorten_by = get_bits(&gb, 16);
if (m->avctx->codec_id == CODEC_ID_TRUEHD && shorten_by & 0x2000)
s->blockpos -= FFMIN(shorten_by & 0x1FFF, s->blockpos);
else if (m->avctx->codec_id == CODEC_ID_MLP && shorten_by != 0xD234)
return -1;
if (substr == m->max_decoded_substream)
av_log(m->avctx, AV_LOG_INFO, "End of stream indicated.\n");
}
if (substream_parity_present[substr]) {
uint8_t parity, checksum;
if (substream_data_len[substr] * 8 - get_bits_count(&gb) != 16)
goto substream_length_mismatch;
parity = ff_mlp_calculate_parity(buf, substream_data_len[substr] - 2);
checksum = ff_mlp_checksum8 (buf, substream_data_len[substr] - 2);
if ((get_bits(&gb, 8) ^ parity) != 0xa9 )
av_log(m->avctx, AV_LOG_ERROR, "Substream %d parity check failed.\n", substr);
if ( get_bits(&gb, 8) != checksum)
av_log(m->avctx, AV_LOG_ERROR, "Substream %d checksum failed.\n" , substr);
}
if (substream_data_len[substr] * 8 != get_bits_count(&gb)) {
goto substream_length_mismatch;
}
next_substr:
if (!s->restart_seen) {
av_log(m->avctx, AV_LOG_ERROR,
"No restart header present in substream %d.\n", substr);
}
buf += substream_data_len[substr];
}
rematrix_channels(m, m->max_decoded_substream);
if (output_data(m, m->max_decoded_substream, data, data_size) < 0)
return -1;
return length;
substream_length_mismatch:
av_log(m->avctx, AV_LOG_ERROR, "substream %d length mismatch\n", substr);
return -1;
error:
m->params_valid = 0;
return -1;
} | ['static int read_access_unit(AVCodecContext *avctx, void* data, int *data_size,\n AVPacket *avpkt)\n{\n const uint8_t *buf = avpkt->data;\n int buf_size = avpkt->size;\n MLPDecodeContext *m = avctx->priv_data;\n GetBitContext gb;\n unsigned int length, substr;\n unsigned int substream_start;\n unsigned int header_size = 4;\n unsigned int substr_header_size = 0;\n uint8_t substream_parity_present[MAX_SUBSTREAMS];\n uint16_t substream_data_len[MAX_SUBSTREAMS];\n uint8_t parity_bits;\n if (buf_size < 4)\n return 0;\n length = (AV_RB16(buf) & 0xfff) * 2;\n if (length > buf_size)\n return -1;\n init_get_bits(&gb, (buf + 4), (length - 4) * 8);\n m->is_major_sync_unit = 0;\n if (show_bits_long(&gb, 31) == (0xf8726fba >> 1)) {\n if (read_major_sync(m, &gb) < 0)\n goto error;\n m->is_major_sync_unit = 1;\n header_size += 28;\n }\n if (!m->params_valid) {\n av_log(m->avctx, AV_LOG_WARNING,\n "Stream parameters not seen; skipping frame.\\n");\n *data_size = 0;\n return length;\n }\n substream_start = 0;\n for (substr = 0; substr < m->num_substreams; substr++) {\n int extraword_present, checkdata_present, end, nonrestart_substr;\n extraword_present = get_bits1(&gb);\n nonrestart_substr = get_bits1(&gb);\n checkdata_present = get_bits1(&gb);\n skip_bits1(&gb);\n end = get_bits(&gb, 12) * 2;\n substr_header_size += 2;\n if (extraword_present) {\n if (m->avctx->codec_id == CODEC_ID_MLP) {\n av_log(m->avctx, AV_LOG_ERROR, "There must be no extraword for MLP.\\n");\n goto error;\n }\n skip_bits(&gb, 16);\n substr_header_size += 2;\n }\n if (!(nonrestart_substr ^ m->is_major_sync_unit)) {\n av_log(m->avctx, AV_LOG_ERROR, "Invalid nonrestart_substr.\\n");\n goto error;\n }\n if (end + header_size + substr_header_size > length) {\n av_log(m->avctx, AV_LOG_ERROR,\n "Indicated length of substream %d data goes off end of "\n "packet.\\n", substr);\n end = length - header_size - substr_header_size;\n }\n if (end < substream_start) {\n av_log(avctx, AV_LOG_ERROR,\n "Indicated end offset of substream %d data "\n "is smaller than calculated start offset.\\n",\n substr);\n goto error;\n }\n if (substr > m->max_decoded_substream)\n continue;\n substream_parity_present[substr] = checkdata_present;\n substream_data_len[substr] = end - substream_start;\n substream_start = end;\n }\n parity_bits = ff_mlp_calculate_parity(buf, 4);\n parity_bits ^= ff_mlp_calculate_parity(buf + header_size, substr_header_size);\n if ((((parity_bits >> 4) ^ parity_bits) & 0xF) != 0xF) {\n av_log(avctx, AV_LOG_ERROR, "Parity check failed.\\n");\n goto error;\n }\n buf += header_size + substr_header_size;\n for (substr = 0; substr <= m->max_decoded_substream; substr++) {\n SubStream *s = &m->substream[substr];\n init_get_bits(&gb, buf, substream_data_len[substr] * 8);\n m->matrix_changed = 0;\n memset(m->filter_changed, 0, sizeof(m->filter_changed));\n s->blockpos = 0;\n do {\n unsigned int ch;\n if (get_bits1(&gb)) {\n if (get_bits1(&gb)) {\n if (read_restart_header(m, &gb, buf, substr) < 0)\n goto next_substr;\n s->restart_seen = 1;\n }\n if (!s->restart_seen) {\n goto next_substr;\n }\n if (read_decoding_params(m, &gb, substr) < 0)\n goto next_substr;\n }\n if (m->matrix_changed > 1) {\n av_log(m->avctx, AV_LOG_ERROR, "Matrices may change only once per access unit.\\n");\n goto next_substr;\n }\n for (ch = 0; ch < s->max_channel; ch++)\n if (m->filter_changed[ch][FIR] > 1 ||\n m->filter_changed[ch][IIR] > 1) {\n av_log(m->avctx, AV_LOG_ERROR, "Filters may change only once per access unit.\\n");\n goto next_substr;\n }\n if (!s->restart_seen) {\n goto next_substr;\n }\n if (read_block_data(m, &gb, substr) < 0)\n return -1;\n if (get_bits_count(&gb) >= substream_data_len[substr] * 8)\n goto substream_length_mismatch;\n } while (!get_bits1(&gb));\n skip_bits(&gb, (-get_bits_count(&gb)) & 15);\n if (substream_data_len[substr] * 8 - get_bits_count(&gb) >= 32) {\n int shorten_by;\n if (get_bits(&gb, 16) != 0xD234)\n return -1;\n shorten_by = get_bits(&gb, 16);\n if (m->avctx->codec_id == CODEC_ID_TRUEHD && shorten_by & 0x2000)\n s->blockpos -= FFMIN(shorten_by & 0x1FFF, s->blockpos);\n else if (m->avctx->codec_id == CODEC_ID_MLP && shorten_by != 0xD234)\n return -1;\n if (substr == m->max_decoded_substream)\n av_log(m->avctx, AV_LOG_INFO, "End of stream indicated.\\n");\n }\n if (substream_parity_present[substr]) {\n uint8_t parity, checksum;\n if (substream_data_len[substr] * 8 - get_bits_count(&gb) != 16)\n goto substream_length_mismatch;\n parity = ff_mlp_calculate_parity(buf, substream_data_len[substr] - 2);\n checksum = ff_mlp_checksum8 (buf, substream_data_len[substr] - 2);\n if ((get_bits(&gb, 8) ^ parity) != 0xa9 )\n av_log(m->avctx, AV_LOG_ERROR, "Substream %d parity check failed.\\n", substr);\n if ( get_bits(&gb, 8) != checksum)\n av_log(m->avctx, AV_LOG_ERROR, "Substream %d checksum failed.\\n" , substr);\n }\n if (substream_data_len[substr] * 8 != get_bits_count(&gb)) {\n goto substream_length_mismatch;\n }\nnext_substr:\n if (!s->restart_seen) {\n av_log(m->avctx, AV_LOG_ERROR,\n "No restart header present in substream %d.\\n", substr);\n }\n buf += substream_data_len[substr];\n }\n rematrix_channels(m, m->max_decoded_substream);\n if (output_data(m, m->max_decoded_substream, data, data_size) < 0)\n return -1;\n return length;\nsubstream_length_mismatch:\n av_log(m->avctx, AV_LOG_ERROR, "substream %d length mismatch\\n", substr);\n return -1;\nerror:\n m->params_valid = 0;\n return -1;\n}'] |
23,146 | 0 | https://github.com/openssl/openssl/blob/95dc05bc6d0dfe0f3f3681f5e27afbc3f7a35eea/crypto/bn/bn_asm.c/#L620 | void bn_mul_comba4(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[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);
r[4]=c2;
c2=0;
mul_add_c(a[2],b[3],c3,c1,c2);
mul_add_c(a[3],b[2],c3,c1,c2);
r[5]=c3;
c3=0;
mul_add_c(a[3],b[3],c1,c2,c3);
r[6]=c1;
r[7]=c2;
} | ['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_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_comba4(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[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\tr[4]=c2;\n\tc2=0;\n\tmul_add_c(a[2],b[3],c3,c1,c2);\n\tmul_add_c(a[3],b[2],c3,c1,c2);\n\tr[5]=c3;\n\tc3=0;\n\tmul_add_c(a[3],b[3],c1,c2,c3);\n\tr[6]=c1;\n\tr[7]=c2;\n\t}'] |
23,147 | 0 | https://github.com/libav/libav/blob/f62c025a5ee898cdaed8f48d2c0ddfd89ac65f16/libavformat/wc3movie.c/#L182 | static int wc3_read_header(AVFormatContext *s,
AVFormatParameters *ap)
{
Wc3DemuxContext *wc3 = s->priv_data;
ByteIOContext *pb = s->pb;
unsigned int fourcc_tag;
unsigned int size;
AVStream *st;
int ret = 0;
int current_palette = 0;
char *buffer;
int i;
unsigned char rotate;
wc3->width = WC3_DEFAULT_WIDTH;
wc3->height = WC3_DEFAULT_HEIGHT;
wc3->palettes = NULL;
wc3->palette_count = 0;
wc3->pts = 0;
wc3->video_stream_index = wc3->audio_stream_index = 0;
url_fseek(pb, 12, SEEK_CUR);
fourcc_tag = get_le32(pb);
size = (get_be32(pb) + 1) & (~1);
do {
switch (fourcc_tag) {
case SOND_TAG:
case INDX_TAG:
url_fseek(pb, size, SEEK_CUR);
break;
case PC__TAG:
url_fseek(pb, 8, SEEK_CUR);
wc3->palette_count = get_le32(pb);
if((unsigned)wc3->palette_count >= UINT_MAX / PALETTE_SIZE){
wc3->palette_count= 0;
return -1;
}
wc3->palettes = av_malloc(wc3->palette_count * PALETTE_SIZE);
break;
case BNAM_TAG:
buffer = av_malloc(size+1);
if (!buffer)
return AVERROR(ENOMEM);
if ((ret = get_buffer(pb, buffer, size)) != size)
return AVERROR(EIO);
buffer[size] = 0;
av_metadata_set2(&s->metadata, "title", buffer,
AV_METADATA_DONT_STRDUP_VAL);
break;
case SIZE_TAG:
wc3->width = get_le32(pb);
wc3->height = get_le32(pb);
break;
case PALT_TAG:
if ((unsigned)current_palette >= wc3->palette_count)
return AVERROR_INVALIDDATA;
if ((ret = get_buffer(pb,
&wc3->palettes[current_palette * PALETTE_SIZE],
PALETTE_SIZE)) != PALETTE_SIZE)
return AVERROR(EIO);
for (i = current_palette * PALETTE_SIZE;
i < (current_palette + 1) * PALETTE_SIZE; i++) {
rotate = ((wc3->palettes[i] << 2) & 0xFF) |
((wc3->palettes[i] >> 6) & 0xFF);
wc3->palettes[i] = wc3_pal_lookup[rotate];
}
current_palette++;
break;
default:
av_log(s, AV_LOG_ERROR, " unrecognized WC3 chunk: %c%c%c%c (0x%02X%02X%02X%02X)\n",
(uint8_t)fourcc_tag, (uint8_t)(fourcc_tag >> 8), (uint8_t)(fourcc_tag >> 16), (uint8_t)(fourcc_tag >> 24),
(uint8_t)fourcc_tag, (uint8_t)(fourcc_tag >> 8), (uint8_t)(fourcc_tag >> 16), (uint8_t)(fourcc_tag >> 24));
return AVERROR_INVALIDDATA;
break;
}
fourcc_tag = get_le32(pb);
size = (get_be32(pb) + 1) & (~1);
if (url_feof(pb))
return AVERROR(EIO);
} while (fourcc_tag != BRCH_TAG);
st = av_new_stream(s, 0);
if (!st)
return AVERROR(ENOMEM);
av_set_pts_info(st, 33, 1, WC3_FRAME_FPS);
wc3->video_stream_index = st->index;
st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
st->codec->codec_id = CODEC_ID_XAN_WC3;
st->codec->codec_tag = 0;
st->codec->width = wc3->width;
st->codec->height = wc3->height;
st->codec->palctrl = &wc3->palette_control;
st = av_new_stream(s, 0);
if (!st)
return AVERROR(ENOMEM);
av_set_pts_info(st, 33, 1, WC3_FRAME_FPS);
wc3->audio_stream_index = st->index;
st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
st->codec->codec_id = CODEC_ID_PCM_S16LE;
st->codec->codec_tag = 1;
st->codec->channels = WC3_AUDIO_CHANNELS;
st->codec->bits_per_coded_sample = WC3_AUDIO_BITS;
st->codec->sample_rate = WC3_SAMPLE_RATE;
st->codec->bit_rate = st->codec->channels * st->codec->sample_rate *
st->codec->bits_per_coded_sample;
st->codec->block_align = WC3_AUDIO_BITS * WC3_AUDIO_CHANNELS;
return 0;
} | ['static int wc3_read_header(AVFormatContext *s,\n AVFormatParameters *ap)\n{\n Wc3DemuxContext *wc3 = s->priv_data;\n ByteIOContext *pb = s->pb;\n unsigned int fourcc_tag;\n unsigned int size;\n AVStream *st;\n int ret = 0;\n int current_palette = 0;\n char *buffer;\n int i;\n unsigned char rotate;\n wc3->width = WC3_DEFAULT_WIDTH;\n wc3->height = WC3_DEFAULT_HEIGHT;\n wc3->palettes = NULL;\n wc3->palette_count = 0;\n wc3->pts = 0;\n wc3->video_stream_index = wc3->audio_stream_index = 0;\n url_fseek(pb, 12, SEEK_CUR);\n fourcc_tag = get_le32(pb);\n size = (get_be32(pb) + 1) & (~1);\n do {\n switch (fourcc_tag) {\n case SOND_TAG:\n case INDX_TAG:\n url_fseek(pb, size, SEEK_CUR);\n break;\n case PC__TAG:\n url_fseek(pb, 8, SEEK_CUR);\n wc3->palette_count = get_le32(pb);\n if((unsigned)wc3->palette_count >= UINT_MAX / PALETTE_SIZE){\n wc3->palette_count= 0;\n return -1;\n }\n wc3->palettes = av_malloc(wc3->palette_count * PALETTE_SIZE);\n break;\n case BNAM_TAG:\n buffer = av_malloc(size+1);\n if (!buffer)\n return AVERROR(ENOMEM);\n if ((ret = get_buffer(pb, buffer, size)) != size)\n return AVERROR(EIO);\n buffer[size] = 0;\n av_metadata_set2(&s->metadata, "title", buffer,\n AV_METADATA_DONT_STRDUP_VAL);\n break;\n case SIZE_TAG:\n wc3->width = get_le32(pb);\n wc3->height = get_le32(pb);\n break;\n case PALT_TAG:\n if ((unsigned)current_palette >= wc3->palette_count)\n return AVERROR_INVALIDDATA;\n if ((ret = get_buffer(pb,\n &wc3->palettes[current_palette * PALETTE_SIZE],\n PALETTE_SIZE)) != PALETTE_SIZE)\n return AVERROR(EIO);\n for (i = current_palette * PALETTE_SIZE;\n i < (current_palette + 1) * PALETTE_SIZE; i++) {\n rotate = ((wc3->palettes[i] << 2) & 0xFF) |\n ((wc3->palettes[i] >> 6) & 0xFF);\n wc3->palettes[i] = wc3_pal_lookup[rotate];\n }\n current_palette++;\n break;\n default:\n av_log(s, AV_LOG_ERROR, " unrecognized WC3 chunk: %c%c%c%c (0x%02X%02X%02X%02X)\\n",\n (uint8_t)fourcc_tag, (uint8_t)(fourcc_tag >> 8), (uint8_t)(fourcc_tag >> 16), (uint8_t)(fourcc_tag >> 24),\n (uint8_t)fourcc_tag, (uint8_t)(fourcc_tag >> 8), (uint8_t)(fourcc_tag >> 16), (uint8_t)(fourcc_tag >> 24));\n return AVERROR_INVALIDDATA;\n break;\n }\n fourcc_tag = get_le32(pb);\n size = (get_be32(pb) + 1) & (~1);\n if (url_feof(pb))\n return AVERROR(EIO);\n } while (fourcc_tag != BRCH_TAG);\n st = av_new_stream(s, 0);\n if (!st)\n return AVERROR(ENOMEM);\n av_set_pts_info(st, 33, 1, WC3_FRAME_FPS);\n wc3->video_stream_index = st->index;\n st->codec->codec_type = AVMEDIA_TYPE_VIDEO;\n st->codec->codec_id = CODEC_ID_XAN_WC3;\n st->codec->codec_tag = 0;\n st->codec->width = wc3->width;\n st->codec->height = wc3->height;\n st->codec->palctrl = &wc3->palette_control;\n st = av_new_stream(s, 0);\n if (!st)\n return AVERROR(ENOMEM);\n av_set_pts_info(st, 33, 1, WC3_FRAME_FPS);\n wc3->audio_stream_index = st->index;\n st->codec->codec_type = AVMEDIA_TYPE_AUDIO;\n st->codec->codec_id = CODEC_ID_PCM_S16LE;\n st->codec->codec_tag = 1;\n st->codec->channels = WC3_AUDIO_CHANNELS;\n st->codec->bits_per_coded_sample = WC3_AUDIO_BITS;\n st->codec->sample_rate = WC3_SAMPLE_RATE;\n st->codec->bit_rate = st->codec->channels * st->codec->sample_rate *\n st->codec->bits_per_coded_sample;\n st->codec->block_align = WC3_AUDIO_BITS * WC3_AUDIO_CHANNELS;\n return 0;\n}', 'unsigned int get_le32(ByteIOContext *s)\n{\n unsigned int val;\n val = get_le16(s);\n val |= get_le16(s) << 16;\n return val;\n}', 'unsigned int get_le16(ByteIOContext *s)\n{\n unsigned int val;\n val = get_byte(s);\n val |= get_byte(s) << 8;\n return val;\n}', 'int get_byte(ByteIOContext *s)\n{\n if (s->buf_ptr >= s->buf_end)\n fill_buffer(s);\n if (s->buf_ptr < s->buf_end)\n return *s->buf_ptr++;\n return 0;\n}'] |
23,148 | 0 | https://github.com/openssl/openssl/blob/d8028b202bfe337200a0cc89b80983ea1838cb30/crypto/lhash/lhash.c/#L123 | void *OPENSSL_LH_delete(OPENSSL_LHASH *lh, const void *data)
{
unsigned long hash;
OPENSSL_LH_NODE *nn, **rn;
void *ret;
lh->error = 0;
rn = getrn(lh, data, &hash);
if (*rn == NULL) {
lh->num_no_delete++;
return (NULL);
} else {
nn = *rn;
*rn = nn->next;
ret = nn->data;
OPENSSL_free(nn);
lh->num_delete++;
}
lh->num_items--;
if ((lh->num_nodes > MIN_NODES) &&
(lh->down_load >= (lh->num_items * LH_LOAD_MULT / lh->num_nodes)))
contract(lh);
return (ret);
} | ['static int test_custom_exts(int tst)\n{\n SSL_CTX *cctx = NULL, *sctx = NULL, *sctx2 = NULL;\n SSL *clientssl = NULL, *serverssl = NULL;\n int testresult = 0;\n static int server = 1;\n static int client = 0;\n SSL_SESSION *sess = NULL;\n unsigned int context;\n clntaddoldcb = clntparseoldcb = srvaddoldcb = srvparseoldcb = 0;\n clntaddnewcb = clntparsenewcb = srvaddnewcb = srvparsenewcb = 0;\n snicb = 0;\n if (!TEST_true(create_ssl_ctx_pair(TLS_server_method(),\n TLS_client_method(), &sctx,\n &cctx, cert, privkey)))\n goto end;\n if (tst == 2\n && !TEST_true(create_ssl_ctx_pair(TLS_server_method(), NULL, &sctx2,\n NULL, cert, privkey)))\n goto end;\n if (tst < 3) {\n SSL_CTX_set_options(cctx, SSL_OP_NO_TLSv1_3);\n SSL_CTX_set_options(sctx, SSL_OP_NO_TLSv1_3);\n if (sctx2 != NULL)\n SSL_CTX_set_options(sctx2, SSL_OP_NO_TLSv1_3);\n }\n if (tst == 4) {\n context = SSL_EXT_CLIENT_HELLO\n | SSL_EXT_TLS1_2_SERVER_HELLO\n | SSL_EXT_TLS1_3_SERVER_HELLO\n | SSL_EXT_TLS1_3_ENCRYPTED_EXTENSIONS\n | SSL_EXT_TLS1_3_CERTIFICATE\n | SSL_EXT_TLS1_3_NEW_SESSION_TICKET;\n } else {\n context = SSL_EXT_CLIENT_HELLO\n | SSL_EXT_TLS1_2_SERVER_HELLO\n | SSL_EXT_TLS1_3_ENCRYPTED_EXTENSIONS;\n }\n if (tst == 0) {\n if (!TEST_true(SSL_CTX_add_client_custom_ext(cctx, TEST_EXT_TYPE1,\n old_add_cb, old_free_cb,\n &client, old_parse_cb,\n &client)))\n goto end;\n } else {\n if (!TEST_true(SSL_CTX_add_custom_ext(cctx, TEST_EXT_TYPE1, context,\n new_add_cb, new_free_cb,\n &client, new_parse_cb, &client)))\n goto end;\n }\n if (!TEST_false(SSL_CTX_add_client_custom_ext(cctx, TEST_EXT_TYPE1,\n old_add_cb, old_free_cb,\n &client, old_parse_cb,\n &client))\n || !TEST_false(SSL_CTX_add_custom_ext(cctx, TEST_EXT_TYPE1,\n context, new_add_cb,\n new_free_cb, &client,\n new_parse_cb, &client)))\n goto end;\n if (tst == 0) {\n if (!TEST_true(SSL_CTX_add_server_custom_ext(sctx, TEST_EXT_TYPE1,\n old_add_cb, old_free_cb,\n &server, old_parse_cb,\n &server)))\n goto end;\n } else {\n if (!TEST_true(SSL_CTX_add_custom_ext(sctx, TEST_EXT_TYPE1, context,\n new_add_cb, new_free_cb,\n &server, new_parse_cb, &server)))\n goto end;\n if (sctx2 != NULL\n && !TEST_true(SSL_CTX_add_custom_ext(sctx2, TEST_EXT_TYPE1,\n context, new_add_cb,\n new_free_cb, &server,\n new_parse_cb, &server)))\n goto end;\n }\n if (!TEST_false(SSL_CTX_add_server_custom_ext(sctx, TEST_EXT_TYPE1,\n old_add_cb, old_free_cb,\n &server, old_parse_cb,\n &server))\n || !TEST_false(SSL_CTX_add_custom_ext(sctx, TEST_EXT_TYPE1,\n context, new_add_cb,\n new_free_cb, &server,\n new_parse_cb, &server)))\n goto end;\n if (tst == 2) {\n if (!TEST_true(SSL_CTX_set_tlsext_servername_callback(sctx, sni_cb))\n || !TEST_true(SSL_CTX_set_tlsext_servername_arg(sctx, sctx2)))\n goto end;\n }\n if (!TEST_true(create_ssl_objects(sctx, cctx, &serverssl,\n &clientssl, NULL, NULL))\n || !TEST_true(create_ssl_connection(serverssl, clientssl,\n SSL_ERROR_NONE)))\n goto end;\n if (tst == 0) {\n if (clntaddoldcb != 1\n || clntparseoldcb != 1\n || srvaddoldcb != 1\n || srvparseoldcb != 1)\n goto end;\n } else if (tst == 1 || tst == 2 || tst == 3) {\n if (clntaddnewcb != 1\n || clntparsenewcb != 1\n || srvaddnewcb != 1\n || srvparsenewcb != 1\n || (tst != 2 && snicb != 0)\n || (tst == 2 && snicb != 1))\n goto end;\n } else {\n if (clntaddnewcb != 1\n || clntparsenewcb != 4\n || srvaddnewcb != 4\n || srvparsenewcb != 1)\n goto end;\n }\n sess = SSL_get1_session(clientssl);\n SSL_shutdown(clientssl);\n SSL_shutdown(serverssl);\n SSL_free(serverssl);\n SSL_free(clientssl);\n serverssl = clientssl = NULL;\n if (tst == 3) {\n testresult = 1;\n goto end;\n }\n if (!TEST_true(create_ssl_objects(sctx, cctx, &serverssl, &clientssl,\n NULL, NULL))\n || !TEST_true(SSL_set_session(clientssl, sess))\n || !TEST_true(create_ssl_connection(serverssl, clientssl,\n SSL_ERROR_NONE)))\n goto end;\n if (tst == 0) {\n if (clntaddoldcb != 2\n || clntparseoldcb != 1\n || srvaddoldcb != 1\n || srvparseoldcb != 1)\n goto end;\n } else if (tst == 1 || tst == 2 || tst == 3) {\n if (clntaddnewcb != 2\n || clntparsenewcb != 2\n || srvaddnewcb != 2\n || srvparsenewcb != 2)\n goto end;\n } else {\n if (clntaddnewcb != 2\n || clntparsenewcb != 7\n || srvaddnewcb != 7\n || srvparsenewcb != 2)\n goto end;\n }\n testresult = 1;\nend:\n SSL_SESSION_free(sess);\n SSL_free(serverssl);\n SSL_free(clientssl);\n SSL_CTX_free(sctx2);\n SSL_CTX_free(sctx);\n SSL_CTX_free(cctx);\n return testresult;\n}', 'int create_ssl_objects(SSL_CTX *serverctx, SSL_CTX *clientctx, SSL **sssl,\n SSL **cssl, BIO *s_to_c_fbio, BIO *c_to_s_fbio)\n{\n SSL *serverssl = NULL, *clientssl = NULL;\n BIO *s_to_c_bio = NULL, *c_to_s_bio = NULL;\n if (*sssl != NULL)\n serverssl = *sssl;\n else if (!TEST_ptr(serverssl = SSL_new(serverctx)))\n goto error;\n if (*cssl != NULL)\n clientssl = *cssl;\n else if (!TEST_ptr(clientssl = SSL_new(clientctx)))\n goto error;\n if (SSL_is_dtls(clientssl)) {\n if (!TEST_ptr(s_to_c_bio = BIO_new(bio_s_mempacket_test()))\n || !TEST_ptr(c_to_s_bio = BIO_new(bio_s_mempacket_test())))\n goto error;\n } else {\n if (!TEST_ptr(s_to_c_bio = BIO_new(BIO_s_mem()))\n || !TEST_ptr(c_to_s_bio = BIO_new(BIO_s_mem())))\n goto error;\n }\n if (s_to_c_fbio != NULL\n && !TEST_ptr(s_to_c_bio = BIO_push(s_to_c_fbio, s_to_c_bio)))\n goto error;\n if (c_to_s_fbio != NULL\n && !TEST_ptr(c_to_s_bio = BIO_push(c_to_s_fbio, c_to_s_bio)))\n goto error;\n BIO_set_mem_eof_return(s_to_c_bio, -1);\n BIO_set_mem_eof_return(c_to_s_bio, -1);\n SSL_set_bio(serverssl, c_to_s_bio, s_to_c_bio);\n BIO_up_ref(s_to_c_bio);\n BIO_up_ref(c_to_s_bio);\n SSL_set_bio(clientssl, s_to_c_bio, c_to_s_bio);\n *sssl = serverssl;\n *cssl = clientssl;\n return 1;\n error:\n SSL_free(serverssl);\n SSL_free(clientssl);\n BIO_free(s_to_c_bio);\n BIO_free(c_to_s_bio);\n BIO_free(s_to_c_fbio);\n BIO_free(c_to_s_fbio);\n return 0;\n}', 'SSL *SSL_new(SSL_CTX *ctx)\n{\n SSL *s;\n if (ctx == NULL) {\n SSLerr(SSL_F_SSL_NEW, SSL_R_NULL_SSL_CTX);\n return (NULL);\n }\n if (ctx->method == NULL) {\n SSLerr(SSL_F_SSL_NEW, SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION);\n return (NULL);\n }\n s = OPENSSL_zalloc(sizeof(*s));\n if (s == NULL)\n goto err;\n s->lock = CRYPTO_THREAD_lock_new();\n if (s->lock == NULL) {\n SSLerr(SSL_F_SSL_NEW, ERR_R_MALLOC_FAILURE);\n OPENSSL_free(s);\n return NULL;\n }\n RECORD_LAYER_init(&s->rlayer, s);\n s->options = ctx->options;\n s->dane.flags = ctx->dane.flags;\n s->min_proto_version = ctx->min_proto_version;\n s->max_proto_version = ctx->max_proto_version;\n s->mode = ctx->mode;\n s->max_cert_list = ctx->max_cert_list;\n s->references = 1;\n s->max_early_data = ctx->max_early_data;\n s->cert = ssl_cert_dup(ctx->cert);\n if (s->cert == NULL)\n goto err;\n RECORD_LAYER_set_read_ahead(&s->rlayer, ctx->read_ahead);\n s->msg_callback = ctx->msg_callback;\n s->msg_callback_arg = ctx->msg_callback_arg;\n s->verify_mode = ctx->verify_mode;\n s->not_resumable_session_cb = ctx->not_resumable_session_cb;\n s->record_padding_cb = ctx->record_padding_cb;\n s->record_padding_arg = ctx->record_padding_arg;\n s->block_padding = ctx->block_padding;\n s->sid_ctx_length = ctx->sid_ctx_length;\n OPENSSL_assert(s->sid_ctx_length <= sizeof s->sid_ctx);\n memcpy(&s->sid_ctx, &ctx->sid_ctx, sizeof(s->sid_ctx));\n s->verify_callback = ctx->default_verify_callback;\n s->generate_session_id = ctx->generate_session_id;\n s->param = X509_VERIFY_PARAM_new();\n if (s->param == NULL)\n goto err;\n X509_VERIFY_PARAM_inherit(s->param, ctx->param);\n s->quiet_shutdown = ctx->quiet_shutdown;\n s->max_send_fragment = ctx->max_send_fragment;\n s->split_send_fragment = ctx->split_send_fragment;\n s->max_pipelines = ctx->max_pipelines;\n if (s->max_pipelines > 1)\n RECORD_LAYER_set_read_ahead(&s->rlayer, 1);\n if (ctx->default_read_buf_len > 0)\n SSL_set_default_read_buffer_len(s, ctx->default_read_buf_len);\n SSL_CTX_up_ref(ctx);\n s->ctx = ctx;\n s->ext.debug_cb = 0;\n s->ext.debug_arg = NULL;\n s->ext.ticket_expected = 0;\n s->ext.status_type = ctx->ext.status_type;\n s->ext.status_expected = 0;\n s->ext.ocsp.ids = NULL;\n s->ext.ocsp.exts = NULL;\n s->ext.ocsp.resp = NULL;\n s->ext.ocsp.resp_len = 0;\n SSL_CTX_up_ref(ctx);\n s->session_ctx = ctx;\n#ifndef OPENSSL_NO_EC\n if (ctx->ext.ecpointformats) {\n s->ext.ecpointformats =\n OPENSSL_memdup(ctx->ext.ecpointformats,\n ctx->ext.ecpointformats_len);\n if (!s->ext.ecpointformats)\n goto err;\n s->ext.ecpointformats_len =\n ctx->ext.ecpointformats_len;\n }\n if (ctx->ext.supportedgroups) {\n s->ext.supportedgroups =\n OPENSSL_memdup(ctx->ext.supportedgroups,\n ctx->ext.supportedgroups_len);\n if (!s->ext.supportedgroups)\n goto err;\n s->ext.supportedgroups_len = ctx->ext.supportedgroups_len;\n }\n#endif\n#ifndef OPENSSL_NO_NEXTPROTONEG\n s->ext.npn = NULL;\n#endif\n if (s->ctx->ext.alpn) {\n s->ext.alpn = OPENSSL_malloc(s->ctx->ext.alpn_len);\n if (s->ext.alpn == NULL)\n goto err;\n memcpy(s->ext.alpn, s->ctx->ext.alpn, s->ctx->ext.alpn_len);\n s->ext.alpn_len = s->ctx->ext.alpn_len;\n }\n s->verified_chain = NULL;\n s->verify_result = X509_V_OK;\n s->default_passwd_callback = ctx->default_passwd_callback;\n s->default_passwd_callback_userdata = ctx->default_passwd_callback_userdata;\n s->method = ctx->method;\n s->key_update = SSL_KEY_UPDATE_NONE;\n if (!s->method->ssl_new(s))\n goto err;\n s->server = (ctx->method->ssl_accept == ssl_undefined_function) ? 0 : 1;\n if (!SSL_clear(s))\n goto err;\n if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data))\n goto err;\n#ifndef OPENSSL_NO_PSK\n s->psk_client_callback = ctx->psk_client_callback;\n s->psk_server_callback = ctx->psk_server_callback;\n#endif\n s->job = NULL;\n#ifndef OPENSSL_NO_CT\n if (!SSL_set_ct_validation_callback(s, ctx->ct_validation_callback,\n ctx->ct_validation_callback_arg))\n goto err;\n#endif\n return s;\n err:\n SSL_free(s);\n SSLerr(SSL_F_SSL_NEW, ERR_R_MALLOC_FAILURE);\n return NULL;\n}', 'void SSL_free(SSL *s)\n{\n int i;\n if (s == NULL)\n return;\n CRYPTO_DOWN_REF(&s->references, &i, s->lock);\n REF_PRINT_COUNT("SSL", s);\n if (i > 0)\n return;\n REF_ASSERT_ISNT(i < 0);\n X509_VERIFY_PARAM_free(s->param);\n dane_final(&s->dane);\n CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);\n ssl_free_wbio_buffer(s);\n BIO_free_all(s->wbio);\n BIO_free_all(s->rbio);\n BUF_MEM_free(s->init_buf);\n sk_SSL_CIPHER_free(s->cipher_list);\n sk_SSL_CIPHER_free(s->cipher_list_by_id);\n 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}', 'int ssl_clear_bad_session(SSL *s)\n{\n if ((s->session != NULL) &&\n !(s->shutdown & SSL_SENT_SHUTDOWN) &&\n !(SSL_in_init(s) || SSL_in_before(s))) {\n SSL_CTX_remove_session(s->session_ctx, s->session);\n return (1);\n } else\n return (0);\n}', 'int SSL_CTX_remove_session(SSL_CTX *ctx, SSL_SESSION *c)\n{\n return remove_session_lock(ctx, c, 1);\n}', 'static int remove_session_lock(SSL_CTX *ctx, SSL_SESSION *c, int lck)\n{\n SSL_SESSION *r;\n int ret = 0;\n if ((c != NULL) && (c->session_id_length != 0)) {\n if (lck)\n CRYPTO_THREAD_write_lock(ctx->lock);\n if ((r = lh_SSL_SESSION_retrieve(ctx->sessions, c)) == c) {\n ret = 1;\n r = lh_SSL_SESSION_delete(ctx->sessions, c);\n SSL_SESSION_list_remove(ctx, c);\n }\n c->not_resumable = 1;\n if (lck)\n CRYPTO_THREAD_unlock(ctx->lock);\n if (ret)\n SSL_SESSION_free(r);\n if (ctx->remove_session_cb != NULL)\n ctx->remove_session_cb(ctx, c);\n } else\n ret = 0;\n return (ret);\n}', 'DEFINE_LHASH_OF(SSL_SESSION)', 'void *OPENSSL_LH_delete(OPENSSL_LHASH *lh, const void *data)\n{\n unsigned long hash;\n OPENSSL_LH_NODE *nn, **rn;\n void *ret;\n lh->error = 0;\n rn = getrn(lh, data, &hash);\n if (*rn == NULL) {\n lh->num_no_delete++;\n return (NULL);\n } else {\n nn = *rn;\n *rn = nn->next;\n ret = nn->data;\n OPENSSL_free(nn);\n lh->num_delete++;\n }\n lh->num_items--;\n if ((lh->num_nodes > MIN_NODES) &&\n (lh->down_load >= (lh->num_items * LH_LOAD_MULT / lh->num_nodes)))\n contract(lh);\n return (ret);\n}'] |
23,149 | 0 | https://github.com/libav/libav/blob/4860abb116674c7be31e825db05cdcfd30f3aff2/libavcodec/flac.c/#L309 | static int decode_subframe_fixed(FLACContext *s, int channel, int pred_order)
{
const int blocksize = s->blocksize;
int32_t *decoded = s->decoded[channel];
int a, b, c, d, i;
for (i = 0; i < pred_order; i++)
{
decoded[i] = get_sbits(&s->gb, s->curr_bps);
}
if (decode_residuals(s, channel, pred_order) < 0)
return -1;
if(pred_order > 0)
a = decoded[pred_order-1];
if(pred_order > 1)
b = a - decoded[pred_order-2];
if(pred_order > 2)
c = b - decoded[pred_order-2] + decoded[pred_order-3];
if(pred_order > 3)
d = c - decoded[pred_order-2] + 2*decoded[pred_order-3] - decoded[pred_order-4];
switch(pred_order)
{
case 0:
break;
case 1:
for (i = pred_order; i < blocksize; i++)
decoded[i] = a += decoded[i];
break;
case 2:
for (i = pred_order; i < blocksize; i++)
decoded[i] = a += b += decoded[i];
break;
case 3:
for (i = pred_order; i < blocksize; i++)
decoded[i] = a += b += c += decoded[i];
break;
case 4:
for (i = pred_order; i < blocksize; i++)
decoded[i] = a += b += c += d += decoded[i];
break;
default:
av_log(s->avctx, AV_LOG_ERROR, "illegal pred order %d\n", pred_order);
return -1;
}
return 0;
} | ['static int decode_subframe_fixed(FLACContext *s, int channel, int pred_order)\n{\n const int blocksize = s->blocksize;\n int32_t *decoded = s->decoded[channel];\n int a, b, c, d, i;\n for (i = 0; i < pred_order; i++)\n {\n decoded[i] = get_sbits(&s->gb, s->curr_bps);\n }\n if (decode_residuals(s, channel, pred_order) < 0)\n return -1;\n if(pred_order > 0)\n a = decoded[pred_order-1];\n if(pred_order > 1)\n b = a - decoded[pred_order-2];\n if(pred_order > 2)\n c = b - decoded[pred_order-2] + decoded[pred_order-3];\n if(pred_order > 3)\n d = c - decoded[pred_order-2] + 2*decoded[pred_order-3] - decoded[pred_order-4];\n switch(pred_order)\n {\n case 0:\n break;\n case 1:\n for (i = pred_order; i < blocksize; i++)\n decoded[i] = a += decoded[i];\n break;\n case 2:\n for (i = pred_order; i < blocksize; i++)\n decoded[i] = a += b += decoded[i];\n break;\n case 3:\n for (i = pred_order; i < blocksize; i++)\n decoded[i] = a += b += c += decoded[i];\n break;\n case 4:\n for (i = pred_order; i < blocksize; i++)\n decoded[i] = a += b += c += d += decoded[i];\n break;\n default:\n av_log(s->avctx, AV_LOG_ERROR, "illegal pred order %d\\n", pred_order);\n return -1;\n }\n return 0;\n}'] |
23,150 | 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_mont_group_set_curve(EC_GROUP *group, const BIGNUM *p,\n const BIGNUM *a, const BIGNUM *b, BN_CTX *ctx)\n{\n BN_CTX *new_ctx = NULL;\n BN_MONT_CTX *mont = NULL;\n BIGNUM *one = NULL;\n int ret = 0;\n BN_MONT_CTX_free(group->field_data1);\n group->field_data1 = NULL;\n BN_free(group->field_data2);\n group->field_data2 = NULL;\n if (ctx == NULL) {\n ctx = new_ctx = BN_CTX_new();\n if (ctx == NULL)\n return 0;\n }\n mont = BN_MONT_CTX_new();\n if (mont == NULL)\n goto err;\n if (!BN_MONT_CTX_set(mont, p, ctx)) {\n ECerr(EC_F_EC_GFP_MONT_GROUP_SET_CURVE, ERR_R_BN_LIB);\n goto err;\n }\n one = BN_new();\n if (one == NULL)\n goto err;\n if (!BN_to_montgomery(one, BN_value_one(), mont, ctx))\n goto err;\n group->field_data1 = mont;\n mont = NULL;\n group->field_data2 = one;\n one = NULL;\n ret = ec_GFp_simple_group_set_curve(group, p, a, b, ctx);\n if (!ret) {\n BN_MONT_CTX_free(group->field_data1);\n group->field_data1 = NULL;\n BN_free(group->field_data2);\n group->field_data2 = NULL;\n }\n err:\n BN_free(one);\n BN_CTX_free(new_ctx);\n BN_MONT_CTX_free(mont);\n return ret;\n}', 'int BN_MONT_CTX_set(BN_MONT_CTX *mont, const BIGNUM *mod, BN_CTX *ctx)\n{\n int ret = 0;\n BIGNUM *Ri, *R;\n if (BN_is_zero(mod))\n return 0;\n BN_CTX_start(ctx);\n if ((Ri = BN_CTX_get(ctx)) == NULL)\n goto err;\n R = &(mont->RR);\n if (!BN_copy(&(mont->N), mod))\n goto err;\n mont->N.neg = 0;\n#ifdef MONT_WORD\n {\n BIGNUM tmod;\n BN_ULONG buf[2];\n bn_init(&tmod);\n tmod.d = buf;\n tmod.dmax = 2;\n tmod.neg = 0;\n 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}', '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}', '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}', '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}'] |
23,151 | 0 | https://github.com/openssl/openssl/blob/8e826a339f8cda20a4311fa88a1de782972cf40d/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;
} | ['BIGNUM *SRP_Calc_server_key(const BIGNUM *A, const BIGNUM *v, const BIGNUM *u,\n const BIGNUM *b, const BIGNUM *N)\n{\n BIGNUM *tmp = NULL, *S = NULL;\n BN_CTX *bn_ctx;\n if (u == NULL || A == NULL || v == NULL || b == NULL || N == NULL)\n return NULL;\n if ((bn_ctx = BN_CTX_new()) == NULL || (tmp = BN_new()) == NULL)\n goto err;\n if (!BN_mod_exp(tmp, v, u, N, bn_ctx))\n goto err;\n if (!BN_mod_mul(tmp, A, tmp, N, bn_ctx))\n goto err;\n S = BN_new();\n if (S != NULL && !BN_mod_exp(S, tmp, b, N, bn_ctx)) {\n BN_free(S);\n S = NULL;\n }\n err:\n BN_CTX_free(bn_ctx);\n BN_clear_free(tmp);\n return S;\n}', 'int BN_mod_exp(BIGNUM *r, const BIGNUM *a, const BIGNUM *p, const BIGNUM *m,\n BN_CTX *ctx)\n{\n int ret;\n bn_check_top(a);\n bn_check_top(p);\n bn_check_top(m);\n#define MONT_MUL_MOD\n#define MONT_EXP_WORD\n#define RECP_MUL_MOD\n#ifdef MONT_MUL_MOD\n if (BN_is_odd(m)) {\n# ifdef MONT_EXP_WORD\n if (a->top == 1 && !a->neg\n && (BN_get_flags(p, BN_FLG_CONSTTIME) == 0)\n && (BN_get_flags(a, BN_FLG_CONSTTIME) == 0)\n && (BN_get_flags(m, BN_FLG_CONSTTIME) == 0)) {\n BN_ULONG A = a->d[0];\n ret = BN_mod_exp_mont_word(r, A, p, m, ctx, NULL);\n } else\n# endif\n ret = BN_mod_exp_mont(r, a, p, m, ctx, NULL);\n } else\n#endif\n#ifdef RECP_MUL_MOD\n {\n ret = BN_mod_exp_recp(r, a, p, m, ctx);\n }\n#else\n {\n ret = BN_mod_exp_simple(r, a, p, m, ctx);\n }\n#endif\n bn_check_top(r);\n return (ret);\n}', 'int BN_mod_exp_mont_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 *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 || BN_get_flags(m, BN_FLG_CONSTTIME) != 0) {\n BNerr(BN_F_BN_MOD_EXP_MONT_WORD, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);\n return 0;\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 r = BN_CTX_get(ctx);\n t = BN_CTX_get(ctx);\n if (t == NULL)\n goto err;\n if (in_mont != NULL)\n mont = in_mont;\n else {\n if ((mont = BN_MONT_CTX_new()) == NULL)\n goto err;\n if (!BN_MONT_CTX_set(mont, m, ctx))\n goto err;\n }\n r_is_one = 1;\n w = a;\n for (b = bits - 2; b >= 0; b--) {\n next_w = w * w;\n if ((next_w / w) != w) {\n if (r_is_one) {\n if (!BN_TO_MONTGOMERY_WORD(r, w, mont))\n goto err;\n r_is_one = 0;\n } else {\n if (!BN_MOD_MUL_WORD(r, w, m))\n goto err;\n }\n next_w = 1;\n }\n w = next_w;\n if (!r_is_one) {\n if (!BN_mod_mul_montgomery(r, r, r, mont, ctx))\n goto err;\n }\n if (BN_is_bit_set(p, b)) {\n next_w = w * a;\n if ((next_w / a) != w) {\n if (r_is_one) {\n if (!BN_TO_MONTGOMERY_WORD(r, w, mont))\n goto err;\n r_is_one = 0;\n } else {\n if (!BN_MOD_MUL_WORD(r, w, m))\n goto err;\n }\n next_w = a;\n }\n w = next_w;\n }\n }\n if (w != 1) {\n if (r_is_one) {\n if (!BN_TO_MONTGOMERY_WORD(r, w, mont))\n goto err;\n r_is_one = 0;\n } else {\n if (!BN_MOD_MUL_WORD(r, w, m))\n goto err;\n }\n }\n if (r_is_one) {\n if (!BN_one(rr))\n goto err;\n } else {\n if (!BN_from_montgomery(rr, r, mont, ctx))\n goto err;\n }\n ret = 1;\n err:\n if (in_mont == NULL)\n BN_MONT_CTX_free(mont);\n BN_CTX_end(ctx);\n bn_check_top(rr);\n return (ret);\n}', 'int BN_set_word(BIGNUM *a, BN_ULONG w)\n{\n bn_check_top(a);\n if (bn_expand(a, (int)sizeof(BN_ULONG) * 8) == NULL)\n return (0);\n a->neg = 0;\n a->d[0] = w;\n a->top = (w ? 1 : 0);\n bn_check_top(a);\n return 1;\n}', 'static ossl_inline BIGNUM *bn_expand(BIGNUM *a, int bits)\n{\n if (bits > (INT_MAX - BN_BITS2 + 1))\n return NULL;\n if (((bits+BN_BITS2-1)/BN_BITS2) <= (a)->dmax)\n return a;\n return bn_expand2((a),(bits+BN_BITS2-1)/BN_BITS2);\n}', 'BIGNUM *bn_expand2(BIGNUM *b, int words)\n{\n bn_check_top(b);\n if (words > b->dmax) {\n BN_ULONG *a = bn_expand_internal(b, words);\n if (!a)\n return NULL;\n if (b->d) {\n OPENSSL_cleanse(b->d, b->dmax * sizeof(b->d[0]));\n bn_free_d(b);\n }\n b->d = a;\n b->dmax = words;\n }\n bn_check_top(b);\n return b;\n}', 'static BN_ULONG *bn_expand_internal(const BIGNUM *b, int words)\n{\n BN_ULONG *a = NULL;\n bn_check_top(b);\n if (words > (INT_MAX / (4 * BN_BITS2))) {\n BNerr(BN_F_BN_EXPAND_INTERNAL, BN_R_BIGNUM_TOO_LONG);\n return NULL;\n }\n if (BN_get_flags(b, BN_FLG_STATIC_DATA)) {\n BNerr(BN_F_BN_EXPAND_INTERNAL, BN_R_EXPAND_ON_STATIC_BIGNUM_DATA);\n return (NULL);\n }\n if (BN_get_flags(b, BN_FLG_SECURE))\n a = OPENSSL_secure_zalloc(words * sizeof(*a));\n else\n a = OPENSSL_zalloc(words * sizeof(*a));\n if (a == NULL) {\n BNerr(BN_F_BN_EXPAND_INTERNAL, ERR_R_MALLOC_FAILURE);\n return (NULL);\n }\n assert(b->top <= words);\n if (b->top > 0)\n memcpy(a, b->d, sizeof(*a) * b->top);\n return a;\n}', 'void *CRYPTO_zalloc(size_t num, const char *file, int line)\n{\n void *ret = CRYPTO_malloc(num, file, line);\n FAILTEST();\n if (ret != NULL)\n memset(ret, 0, num);\n return ret;\n}', 'void *CRYPTO_malloc(size_t num, const char *file, int line)\n{\n void *ret = NULL;\n if (malloc_impl != NULL && malloc_impl != CRYPTO_malloc)\n return malloc_impl(num, file, line);\n if (num == 0)\n return NULL;\n FAILTEST();\n allow_customize = 0;\n#ifndef OPENSSL_NO_CRYPTO_MDEBUG\n if (call_malloc_debug) {\n CRYPTO_mem_debug_malloc(NULL, num, 0, file, line);\n ret = malloc(num);\n CRYPTO_mem_debug_malloc(ret, num, 1, file, line);\n } else {\n ret = malloc(num);\n }\n#else\n (void)(file); (void)(line);\n ret = malloc(num);\n#endif\n return ret;\n}'] |
23,152 | 0 | https://github.com/libav/libav/blob/0e7fa0bc3ba8eaea3eb623aa269806d2eca3a2c2/libavformat/matroskadec.c/#L910 | 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}'] |
23,153 | 0 | https://github.com/libav/libav/blob/4afedfd8e5c5f102d3a67c224c33b51bbed47eee/libavformat/matroskadec.c/#L834 | static int ebml_parse_elem(MatroskaDemuxContext *matroska,
EbmlSyntax *syntax, void *data)
{
static const uint64_t max_lengths[EBML_TYPE_COUNT] = {
[EBML_UINT] = 8,
[EBML_FLOAT] = 8,
[EBML_STR] = 0x1000000,
[EBML_UTF8] = 0x1000000,
[EBML_BIN] = 0x10000000,
};
AVIOContext *pb = matroska->ctx->pb;
uint32_t id = syntax->id;
uint64_t length;
int res;
data = (char *)data + syntax->data_offset;
if (syntax->list_elem_size) {
EbmlList *list = data;
list->elem = av_realloc(list->elem, (list->nb_elem+1)*syntax->list_elem_size);
data = (char*)list->elem + list->nb_elem*syntax->list_elem_size;
memset(data, 0, syntax->list_elem_size);
list->nb_elem++;
}
if (syntax->type != EBML_PASS && syntax->type != EBML_STOP) {
matroska->current_id = 0;
if ((res = ebml_read_length(matroska, pb, &length)) < 0)
return res;
if (max_lengths[syntax->type] && length > max_lengths[syntax->type]) {
av_log(matroska->ctx, AV_LOG_ERROR,
"Invalid length 0x%"PRIx64" > 0x%"PRIx64" for syntax element %i\n",
length, max_lengths[syntax->type], syntax->type);
return AVERROR_INVALIDDATA;
}
}
switch (syntax->type) {
case EBML_UINT: res = ebml_read_uint (pb, length, data); break;
case EBML_FLOAT: res = ebml_read_float (pb, length, data); break;
case EBML_STR:
case EBML_UTF8: res = ebml_read_ascii (pb, length, data); break;
case EBML_BIN: res = ebml_read_binary(pb, length, data); break;
case EBML_NEST: if ((res=ebml_read_master(matroska, length)) < 0)
return res;
if (id == MATROSKA_ID_SEGMENT)
matroska->segment_start = avio_tell(matroska->ctx->pb);
return ebml_parse_nest(matroska, syntax->def.n, data);
case EBML_PASS: return ebml_parse_id(matroska, syntax->def.n, id, data);
case EBML_STOP: return 1;
default: return avio_skip(pb,length)<0 ? AVERROR(EIO) : 0;
}
if (res == AVERROR_INVALIDDATA)
av_log(matroska->ctx, AV_LOG_ERROR, "Invalid element\n");
else if (res == AVERROR(EIO))
av_log(matroska->ctx, AV_LOG_ERROR, "Read error\n");
return res;
} | ['static int ebml_parse_elem(MatroskaDemuxContext *matroska,\n EbmlSyntax *syntax, void *data)\n{\n static const uint64_t max_lengths[EBML_TYPE_COUNT] = {\n [EBML_UINT] = 8,\n [EBML_FLOAT] = 8,\n [EBML_STR] = 0x1000000,\n [EBML_UTF8] = 0x1000000,\n [EBML_BIN] = 0x10000000,\n };\n AVIOContext *pb = matroska->ctx->pb;\n uint32_t id = syntax->id;\n uint64_t length;\n int res;\n data = (char *)data + syntax->data_offset;\n if (syntax->list_elem_size) {\n EbmlList *list = data;\n list->elem = av_realloc(list->elem, (list->nb_elem+1)*syntax->list_elem_size);\n data = (char*)list->elem + list->nb_elem*syntax->list_elem_size;\n memset(data, 0, syntax->list_elem_size);\n list->nb_elem++;\n }\n if (syntax->type != EBML_PASS && syntax->type != EBML_STOP) {\n matroska->current_id = 0;\n if ((res = ebml_read_length(matroska, pb, &length)) < 0)\n return res;\n if (max_lengths[syntax->type] && length > max_lengths[syntax->type]) {\n av_log(matroska->ctx, AV_LOG_ERROR,\n "Invalid length 0x%"PRIx64" > 0x%"PRIx64" for syntax element %i\\n",\n length, max_lengths[syntax->type], syntax->type);\n return AVERROR_INVALIDDATA;\n }\n }\n switch (syntax->type) {\n case EBML_UINT: res = ebml_read_uint (pb, length, data); break;\n case EBML_FLOAT: res = ebml_read_float (pb, length, data); break;\n case EBML_STR:\n case EBML_UTF8: res = ebml_read_ascii (pb, length, data); break;\n case EBML_BIN: res = ebml_read_binary(pb, length, data); break;\n case EBML_NEST: if ((res=ebml_read_master(matroska, length)) < 0)\n return res;\n if (id == MATROSKA_ID_SEGMENT)\n matroska->segment_start = avio_tell(matroska->ctx->pb);\n return ebml_parse_nest(matroska, syntax->def.n, data);\n case EBML_PASS: return ebml_parse_id(matroska, syntax->def.n, id, data);\n case EBML_STOP: return 1;\n default: return avio_skip(pb,length)<0 ? AVERROR(EIO) : 0;\n }\n if (res == AVERROR_INVALIDDATA)\n av_log(matroska->ctx, AV_LOG_ERROR, "Invalid element\\n");\n else if (res == AVERROR(EIO))\n av_log(matroska->ctx, AV_LOG_ERROR, "Read error\\n");\n return res;\n}'] |
23,154 | 0 | https://github.com/openssl/openssl/blob/5ea564f154ebe8bda2a0e091a312e2058edf437f/crypto/bn/bn_sqr.c/#L114 | void bn_sqr_normal(BN_ULONG *r, const BN_ULONG *a, int n, BN_ULONG *tmp)
{
int i, j, max;
const BN_ULONG *ap;
BN_ULONG *rp;
max = n * 2;
ap = a;
rp = r;
rp[0] = rp[max - 1] = 0;
rp++;
j = n;
if (--j > 0) {
ap++;
rp[j] = bn_mul_words(rp, ap, j, ap[-1]);
rp += 2;
}
for (i = n - 2; i > 0; i--) {
j--;
ap++;
rp[j] = bn_mul_add_words(rp, ap, j, ap[-1]);
rp += 2;
}
bn_add_words(r, r, r, max);
bn_sqr_words(tmp, a, n);
bn_add_words(r, r, tmp, max);
} | ['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 || !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 (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}', '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}'] |
23,155 | 0 | https://github.com/libav/libav/blob/83abdf5ff059649635e7e7e16c528e1973ac8a67/libavcodec/vp8.c/#L855 | static int decode_block_coeffs(VP56RangeCoder *c, DCTELEM block[16],
uint8_t probs[8][3][NUM_DCT_TOKENS-1],
int i, int zero_nhood, int16_t qmul[2])
{
uint8_t *token_prob = probs[i][zero_nhood];
int nonzero = 0;
int coeff;
do {
if (!vp56_rac_get_prob_branchy(c, token_prob[0]))
return nonzero;
skip_eob:
if (!vp56_rac_get_prob_branchy(c, token_prob[1])) {
if (++i == 16)
return nonzero;
token_prob = probs[i][0];
goto skip_eob;
}
if (!vp56_rac_get_prob_branchy(c, token_prob[2])) {
coeff = 1;
token_prob = probs[i+1][1];
} else {
if (!vp56_rac_get_prob_branchy(c, token_prob[3])) {
coeff = vp56_rac_get_prob(c, token_prob[4]);
if (coeff)
coeff += vp56_rac_get_prob(c, token_prob[5]);
coeff += 2;
} else {
if (!vp56_rac_get_prob_branchy(c, token_prob[6])) {
if (!vp56_rac_get_prob_branchy(c, token_prob[7])) {
coeff = 5 + vp56_rac_get_prob(c, vp8_dct_cat1_prob[0]);
} else {
coeff = 7;
coeff += vp56_rac_get_prob(c, vp8_dct_cat2_prob[0]) << 1;
coeff += vp56_rac_get_prob(c, vp8_dct_cat2_prob[1]);
}
} else {
int a = vp56_rac_get_prob(c, token_prob[8]);
int b = vp56_rac_get_prob(c, token_prob[9+a]);
int cat = (a<<1) + b;
coeff = 3 + (8<<cat);
coeff += vp8_rac_get_coeff(c, vp8_dct_cat_prob[cat]);
}
}
token_prob = probs[i+1][2];
}
block[zigzag_scan[i]] = (vp8_rac_get(c) ? -coeff : coeff) * qmul[!!i];
nonzero = ++i;
} while (i < 16);
return nonzero;
} | ['static int decode_block_coeffs(VP56RangeCoder *c, DCTELEM block[16],\n uint8_t probs[8][3][NUM_DCT_TOKENS-1],\n int i, int zero_nhood, int16_t qmul[2])\n{\n uint8_t *token_prob = probs[i][zero_nhood];\n int nonzero = 0;\n int coeff;\n do {\n if (!vp56_rac_get_prob_branchy(c, token_prob[0]))\n return nonzero;\nskip_eob:\n if (!vp56_rac_get_prob_branchy(c, token_prob[1])) {\n if (++i == 16)\n return nonzero;\n token_prob = probs[i][0];\n goto skip_eob;\n }\n if (!vp56_rac_get_prob_branchy(c, token_prob[2])) {\n coeff = 1;\n token_prob = probs[i+1][1];\n } else {\n if (!vp56_rac_get_prob_branchy(c, token_prob[3])) {\n coeff = vp56_rac_get_prob(c, token_prob[4]);\n if (coeff)\n coeff += vp56_rac_get_prob(c, token_prob[5]);\n coeff += 2;\n } else {\n if (!vp56_rac_get_prob_branchy(c, token_prob[6])) {\n if (!vp56_rac_get_prob_branchy(c, token_prob[7])) {\n coeff = 5 + vp56_rac_get_prob(c, vp8_dct_cat1_prob[0]);\n } else {\n coeff = 7;\n coeff += vp56_rac_get_prob(c, vp8_dct_cat2_prob[0]) << 1;\n coeff += vp56_rac_get_prob(c, vp8_dct_cat2_prob[1]);\n }\n } else {\n int a = vp56_rac_get_prob(c, token_prob[8]);\n int b = vp56_rac_get_prob(c, token_prob[9+a]);\n int cat = (a<<1) + b;\n coeff = 3 + (8<<cat);\n coeff += vp8_rac_get_coeff(c, vp8_dct_cat_prob[cat]);\n }\n }\n token_prob = probs[i+1][2];\n }\n block[zigzag_scan[i]] = (vp8_rac_get(c) ? -coeff : coeff) * qmul[!!i];\n nonzero = ++i;\n } while (i < 16);\n return nonzero;\n}', 'static inline int vp56_rac_get_prob(VP56RangeCoder *c, uint8_t prob)\n{\n unsigned int code_word = vp56_rac_renorm(c);\n unsigned int low = 1 + (((c->high - 1) * prob) >> 8);\n unsigned int low_shift = low << 8;\n int bit = code_word >= low_shift;\n c->high = bit ? c->high - low : low;\n c->code_word = bit ? code_word - low_shift : code_word;\n return bit;\n}'] |
23,156 | 0 | https://github.com/libav/libav/blob/43a4cb070bf7588c53fd192e8fbc71a52fa14a4c/libavcodec/4xm.c/#L204 | static void idct(DCTELEM block[64])
{
int tmp0, tmp1, tmp2, tmp3, tmp4, tmp5, tmp6, tmp7;
int tmp10, tmp11, tmp12, tmp13;
int z5, z10, z11, z12, z13;
int i;
int temp[64];
for (i = 0; i < 8; i++) {
tmp10 = block[8 * 0 + i] + block[8 * 4 + i];
tmp11 = block[8 * 0 + i] - block[8 * 4 + i];
tmp13 = block[8 * 2 + i] + block[8 * 6 + i];
tmp12 = MULTIPLY(block[8 * 2 + i] - block[8 * 6 + i], FIX_1_414213562) - tmp13;
tmp0 = tmp10 + tmp13;
tmp3 = tmp10 - tmp13;
tmp1 = tmp11 + tmp12;
tmp2 = tmp11 - tmp12;
z13 = block[8 * 5 + i] + block[8 * 3 + i];
z10 = block[8 * 5 + i] - block[8 * 3 + i];
z11 = block[8 * 1 + i] + block[8 * 7 + i];
z12 = block[8 * 1 + i] - block[8 * 7 + i];
tmp7 = z11 + z13;
tmp11 = MULTIPLY(z11 - z13, FIX_1_414213562);
z5 = MULTIPLY(z10 + z12, FIX_1_847759065);
tmp10 = MULTIPLY(z12, FIX_1_082392200) - z5;
tmp12 = MULTIPLY(z10, -FIX_2_613125930) + z5;
tmp6 = tmp12 - tmp7;
tmp5 = tmp11 - tmp6;
tmp4 = tmp10 + tmp5;
temp[8 * 0 + i] = tmp0 + tmp7;
temp[8 * 7 + i] = tmp0 - tmp7;
temp[8 * 1 + i] = tmp1 + tmp6;
temp[8 * 6 + i] = tmp1 - tmp6;
temp[8 * 2 + i] = tmp2 + tmp5;
temp[8 * 5 + i] = tmp2 - tmp5;
temp[8 * 4 + i] = tmp3 + tmp4;
temp[8 * 3 + i] = tmp3 - tmp4;
}
for (i = 0; i < 8 * 8; i += 8) {
tmp10 = temp[0 + i] + temp[4 + i];
tmp11 = temp[0 + i] - temp[4 + i];
tmp13 = temp[2 + i] + temp[6 + i];
tmp12 = MULTIPLY(temp[2 + i] - temp[6 + i], FIX_1_414213562) - tmp13;
tmp0 = tmp10 + tmp13;
tmp3 = tmp10 - tmp13;
tmp1 = tmp11 + tmp12;
tmp2 = tmp11 - tmp12;
z13 = temp[5 + i] + temp[3 + i];
z10 = temp[5 + i] - temp[3 + i];
z11 = temp[1 + i] + temp[7 + i];
z12 = temp[1 + i] - temp[7 + i];
tmp7 = z11 + z13;
tmp11 = MULTIPLY(z11 - z13, FIX_1_414213562);
z5 = MULTIPLY(z10 + z12, FIX_1_847759065);
tmp10 = MULTIPLY(z12, FIX_1_082392200) - z5;
tmp12 = MULTIPLY(z10, -FIX_2_613125930) + z5;
tmp6 = tmp12 - tmp7;
tmp5 = tmp11 - tmp6;
tmp4 = tmp10 + tmp5;
block[0 + i] = (tmp0 + tmp7) >> 6;
block[7 + i] = (tmp0 - tmp7) >> 6;
block[1 + i] = (tmp1 + tmp6) >> 6;
block[6 + i] = (tmp1 - tmp6) >> 6;
block[2 + i] = (tmp2 + tmp5) >> 6;
block[5 + i] = (tmp2 - tmp5) >> 6;
block[4 + i] = (tmp3 + tmp4) >> 6;
block[3 + i] = (tmp3 - tmp4) >> 6;
}
} | ['static void idct(DCTELEM block[64])\n{\n int tmp0, tmp1, tmp2, tmp3, tmp4, tmp5, tmp6, tmp7;\n int tmp10, tmp11, tmp12, tmp13;\n int z5, z10, z11, z12, z13;\n int i;\n int temp[64];\n for (i = 0; i < 8; i++) {\n tmp10 = block[8 * 0 + i] + block[8 * 4 + i];\n tmp11 = block[8 * 0 + i] - block[8 * 4 + i];\n tmp13 = block[8 * 2 + i] + block[8 * 6 + i];\n tmp12 = MULTIPLY(block[8 * 2 + i] - block[8 * 6 + i], FIX_1_414213562) - tmp13;\n tmp0 = tmp10 + tmp13;\n tmp3 = tmp10 - tmp13;\n tmp1 = tmp11 + tmp12;\n tmp2 = tmp11 - tmp12;\n z13 = block[8 * 5 + i] + block[8 * 3 + i];\n z10 = block[8 * 5 + i] - block[8 * 3 + i];\n z11 = block[8 * 1 + i] + block[8 * 7 + i];\n z12 = block[8 * 1 + i] - block[8 * 7 + i];\n tmp7 = z11 + z13;\n tmp11 = MULTIPLY(z11 - z13, FIX_1_414213562);\n z5 = MULTIPLY(z10 + z12, FIX_1_847759065);\n tmp10 = MULTIPLY(z12, FIX_1_082392200) - z5;\n tmp12 = MULTIPLY(z10, -FIX_2_613125930) + z5;\n tmp6 = tmp12 - tmp7;\n tmp5 = tmp11 - tmp6;\n tmp4 = tmp10 + tmp5;\n temp[8 * 0 + i] = tmp0 + tmp7;\n temp[8 * 7 + i] = tmp0 - tmp7;\n temp[8 * 1 + i] = tmp1 + tmp6;\n temp[8 * 6 + i] = tmp1 - tmp6;\n temp[8 * 2 + i] = tmp2 + tmp5;\n temp[8 * 5 + i] = tmp2 - tmp5;\n temp[8 * 4 + i] = tmp3 + tmp4;\n temp[8 * 3 + i] = tmp3 - tmp4;\n }\n for (i = 0; i < 8 * 8; i += 8) {\n tmp10 = temp[0 + i] + temp[4 + i];\n tmp11 = temp[0 + i] - temp[4 + i];\n tmp13 = temp[2 + i] + temp[6 + i];\n tmp12 = MULTIPLY(temp[2 + i] - temp[6 + i], FIX_1_414213562) - tmp13;\n tmp0 = tmp10 + tmp13;\n tmp3 = tmp10 - tmp13;\n tmp1 = tmp11 + tmp12;\n tmp2 = tmp11 - tmp12;\n z13 = temp[5 + i] + temp[3 + i];\n z10 = temp[5 + i] - temp[3 + i];\n z11 = temp[1 + i] + temp[7 + i];\n z12 = temp[1 + i] - temp[7 + i];\n tmp7 = z11 + z13;\n tmp11 = MULTIPLY(z11 - z13, FIX_1_414213562);\n z5 = MULTIPLY(z10 + z12, FIX_1_847759065);\n tmp10 = MULTIPLY(z12, FIX_1_082392200) - z5;\n tmp12 = MULTIPLY(z10, -FIX_2_613125930) + z5;\n tmp6 = tmp12 - tmp7;\n tmp5 = tmp11 - tmp6;\n tmp4 = tmp10 + tmp5;\n block[0 + i] = (tmp0 + tmp7) >> 6;\n block[7 + i] = (tmp0 - tmp7) >> 6;\n block[1 + i] = (tmp1 + tmp6) >> 6;\n block[6 + i] = (tmp1 - tmp6) >> 6;\n block[2 + i] = (tmp2 + tmp5) >> 6;\n block[5 + i] = (tmp2 - tmp5) >> 6;\n block[4 + i] = (tmp3 + tmp4) >> 6;\n block[3 + i] = (tmp3 - tmp4) >> 6;\n }\n}'] |
23,157 | 0 | https://github.com/openssl/openssl/blob/7001571330ce2e31234660c10ef26089a07b17c1/crypto/bio/b_addr.c/#L627 | static int addrinfo_wrap(int family, int socktype,
const void *where, size_t wherelen,
unsigned short port,
BIO_ADDRINFO **bai)
{
OPENSSL_assert(bai != NULL);
*bai = OPENSSL_zalloc(sizeof(**bai));
if (*bai == NULL)
return 0;
(*bai)->bai_family = family;
(*bai)->bai_socktype = socktype;
if (socktype == SOCK_STREAM)
(*bai)->bai_protocol = IPPROTO_TCP;
if (socktype == SOCK_DGRAM)
(*bai)->bai_protocol = IPPROTO_UDP;
#ifdef AF_UNIX
if (family == AF_UNIX)
(*bai)->bai_protocol = 0;
#endif
{
BIO_ADDR *addr = BIO_ADDR_new();
if (addr != NULL) {
BIO_ADDR_rawmake(addr, family, where, wherelen, port);
(*bai)->bai_addr = BIO_ADDR_sockaddr_noconst(addr);
}
}
(*bai)->bai_next = NULL;
if ((*bai)->bai_addr == NULL) {
BIO_ADDRINFO_free(*bai);
*bai = NULL;
return 0;
}
return 1;
} | ['static int addrinfo_wrap(int family, int socktype,\n const void *where, size_t wherelen,\n unsigned short port,\n BIO_ADDRINFO **bai)\n{\n OPENSSL_assert(bai != NULL);\n *bai = OPENSSL_zalloc(sizeof(**bai));\n if (*bai == NULL)\n return 0;\n (*bai)->bai_family = family;\n (*bai)->bai_socktype = socktype;\n if (socktype == SOCK_STREAM)\n (*bai)->bai_protocol = IPPROTO_TCP;\n if (socktype == SOCK_DGRAM)\n (*bai)->bai_protocol = IPPROTO_UDP;\n#ifdef AF_UNIX\n if (family == AF_UNIX)\n (*bai)->bai_protocol = 0;\n#endif\n {\n BIO_ADDR *addr = BIO_ADDR_new();\n if (addr != NULL) {\n BIO_ADDR_rawmake(addr, family, where, wherelen, port);\n (*bai)->bai_addr = BIO_ADDR_sockaddr_noconst(addr);\n }\n }\n (*bai)->bai_next = NULL;\n if ((*bai)->bai_addr == NULL) {\n BIO_ADDRINFO_free(*bai);\n *bai = NULL;\n return 0;\n }\n return 1;\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}'] |
23,158 | 0 | https://github.com/openssl/openssl/blob/ea32151f7b9353f8906188d007c6893704ac17bb/crypto/bn/bn_shift.c/#L110 | 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;
}
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, sizeof(*t) * nw);
r->top = a->top + nw + 1;
bn_correct_top(r);
bn_check_top(r);
return (1);
} | ['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 if (!EC_KEY_can_sign(eckey)) {\n ECerr(EC_F_OSSL_ECDSA_VERIFY_SIG, EC_R_CURVE_DOES_NOT_SUPPORT_SIGNING);\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}', '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}', '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}', '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_nnmod(BIGNUM *r, const BIGNUM *m, const BIGNUM *d, BN_CTX *ctx)\n{\n if (!(BN_mod(r, m, d, ctx)))\n return 0;\n if (!r->neg)\n return 1;\n return (d->neg ? BN_sub : BN_add) (r, r, d);\n}', 'int BN_div(BIGNUM *dv, BIGNUM *rm, const BIGNUM *num, const BIGNUM *divisor,\n BN_CTX *ctx)\n{\n int norm_shift, i, loop;\n BIGNUM *tmp, wnum, *snum, *sdiv, *res;\n BN_ULONG *resp, *wnump;\n BN_ULONG d0, d1;\n int num_n, div_n;\n int no_branch = 0;\n if ((num->top > 0 && num->d[num->top - 1] == 0) ||\n (divisor->top > 0 && divisor->d[divisor->top - 1] == 0)) {\n BNerr(BN_F_BN_DIV, BN_R_NOT_INITIALIZED);\n return 0;\n }\n bn_check_top(num);\n bn_check_top(divisor);\n if ((BN_get_flags(num, BN_FLG_CONSTTIME) != 0)\n || (BN_get_flags(divisor, BN_FLG_CONSTTIME) != 0)) {\n no_branch = 1;\n }\n bn_check_top(dv);\n bn_check_top(rm);\n if (BN_is_zero(divisor)) {\n BNerr(BN_F_BN_DIV, BN_R_DIV_BY_ZERO);\n return (0);\n }\n if (!no_branch && BN_ucmp(num, divisor) < 0) {\n if (rm != NULL) {\n if (BN_copy(rm, num) == NULL)\n return (0);\n }\n if (dv != NULL)\n BN_zero(dv);\n return (1);\n }\n BN_CTX_start(ctx);\n tmp = BN_CTX_get(ctx);\n snum = BN_CTX_get(ctx);\n sdiv = BN_CTX_get(ctx);\n if (dv == NULL)\n res = BN_CTX_get(ctx);\n else\n res = dv;\n if (sdiv == NULL || res == NULL || tmp == NULL || snum == NULL)\n goto err;\n norm_shift = BN_BITS2 - ((BN_num_bits(divisor)) % BN_BITS2);\n if (!(BN_lshift(sdiv, divisor, norm_shift)))\n goto err;\n sdiv->neg = 0;\n norm_shift += BN_BITS2;\n if (!(BN_lshift(snum, num, norm_shift)))\n goto err;\n snum->neg = 0;\n if (no_branch) {\n if (snum->top <= sdiv->top + 1) {\n if (bn_wexpand(snum, sdiv->top + 2) == NULL)\n goto err;\n for (i = snum->top; i < sdiv->top + 2; i++)\n snum->d[i] = 0;\n snum->top = sdiv->top + 2;\n } else {\n if (bn_wexpand(snum, snum->top + 1) == NULL)\n goto err;\n snum->d[snum->top] = 0;\n snum->top++;\n }\n }\n div_n = sdiv->top;\n num_n = snum->top;\n loop = num_n - div_n;\n wnum.neg = 0;\n wnum.d = &(snum->d[loop]);\n wnum.top = div_n;\n wnum.dmax = snum->dmax - loop;\n d0 = sdiv->d[div_n - 1];\n d1 = (div_n == 1) ? 0 : sdiv->d[div_n - 2];\n wnump = &(snum->d[num_n - 1]);\n res->neg = (num->neg ^ divisor->neg);\n if (!bn_wexpand(res, (loop + 1)))\n goto err;\n res->top = loop - no_branch;\n resp = &(res->d[loop - 1]);\n if (!bn_wexpand(tmp, (div_n + 1)))\n goto err;\n if (!no_branch) {\n if (BN_ucmp(&wnum, sdiv) >= 0) {\n bn_clear_top2max(&wnum);\n bn_sub_words(wnum.d, wnum.d, sdiv->d, div_n);\n *resp = 1;\n } else\n res->top--;\n }\n 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 r->neg = a->neg;\n nw = n / BN_BITS2;\n if (bn_wexpand(r, a->top + nw + 1) == NULL)\n return (0);\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}'] |
23,159 | 0 | https://github.com/openssl/openssl/blob/b8f1c116a357285ccb4905cd88c83f5076bafb52/crypto/cms/cms_sd.c/#L658 | static int cms_SignerInfo_content_sign(CMS_ContentInfo *cms,
CMS_SignerInfo *si, BIO *chain)
{
EVP_MD_CTX *mctx = EVP_MD_CTX_new();
int r = 0;
EVP_PKEY_CTX *pctx = NULL;
if (mctx == NULL) {
CMSerr(CMS_F_CMS_SIGNERINFO_CONTENT_SIGN, ERR_R_MALLOC_FAILURE);
return 0;
}
if (!si->pkey) {
CMSerr(CMS_F_CMS_SIGNERINFO_CONTENT_SIGN, CMS_R_NO_PRIVATE_KEY);
goto err;
}
if (!cms_DigestAlgorithm_find_ctx(mctx, chain, si->digestAlgorithm))
goto err;
if (si->pctx && !cms_sd_asn1_ctrl(si, 0))
goto err;
if (CMS_signed_get_attr_count(si) >= 0) {
ASN1_OBJECT *ctype =
cms->d.signedData->encapContentInfo->eContentType;
unsigned char md[EVP_MAX_MD_SIZE];
unsigned int mdlen;
if (!EVP_DigestFinal_ex(mctx, md, &mdlen))
goto err;
if (!CMS_signed_add1_attr_by_NID(si, NID_pkcs9_messageDigest,
V_ASN1_OCTET_STRING, md, mdlen))
goto err;
if (CMS_signed_add1_attr_by_NID(si, NID_pkcs9_contentType,
V_ASN1_OBJECT, ctype, -1) <= 0)
goto err;
if (!CMS_SignerInfo_sign(si))
goto err;
} else if (si->pctx) {
unsigned char *sig;
size_t siglen;
unsigned char md[EVP_MAX_MD_SIZE];
unsigned int mdlen;
pctx = si->pctx;
if (!EVP_DigestFinal_ex(mctx, md, &mdlen))
goto err;
siglen = EVP_PKEY_size(si->pkey);
sig = OPENSSL_malloc(siglen);
if (sig == NULL) {
CMSerr(CMS_F_CMS_SIGNERINFO_CONTENT_SIGN, ERR_R_MALLOC_FAILURE);
goto err;
}
if (EVP_PKEY_sign(pctx, sig, &siglen, md, mdlen) <= 0) {
OPENSSL_free(sig);
goto err;
}
ASN1_STRING_set0(si->signature, sig, siglen);
} else {
unsigned char *sig;
unsigned int siglen;
sig = OPENSSL_malloc(EVP_PKEY_size(si->pkey));
if (sig == NULL) {
CMSerr(CMS_F_CMS_SIGNERINFO_CONTENT_SIGN, ERR_R_MALLOC_FAILURE);
goto err;
}
if (!EVP_SignFinal(mctx, sig, &siglen, si->pkey)) {
CMSerr(CMS_F_CMS_SIGNERINFO_CONTENT_SIGN, CMS_R_SIGNFINAL_ERROR);
OPENSSL_free(sig);
goto err;
}
ASN1_STRING_set0(si->signature, sig, siglen);
}
r = 1;
err:
EVP_MD_CTX_free(mctx);
EVP_PKEY_CTX_free(pctx);
return r;
} | ['static int cms_SignerInfo_content_sign(CMS_ContentInfo *cms,\n CMS_SignerInfo *si, BIO *chain)\n{\n EVP_MD_CTX *mctx = EVP_MD_CTX_new();\n int r = 0;\n EVP_PKEY_CTX *pctx = NULL;\n if (mctx == NULL) {\n CMSerr(CMS_F_CMS_SIGNERINFO_CONTENT_SIGN, ERR_R_MALLOC_FAILURE);\n return 0;\n }\n if (!si->pkey) {\n CMSerr(CMS_F_CMS_SIGNERINFO_CONTENT_SIGN, CMS_R_NO_PRIVATE_KEY);\n goto err;\n }\n if (!cms_DigestAlgorithm_find_ctx(mctx, chain, si->digestAlgorithm))\n goto err;\n if (si->pctx && !cms_sd_asn1_ctrl(si, 0))\n goto err;\n if (CMS_signed_get_attr_count(si) >= 0) {\n ASN1_OBJECT *ctype =\n cms->d.signedData->encapContentInfo->eContentType;\n unsigned char md[EVP_MAX_MD_SIZE];\n unsigned int mdlen;\n if (!EVP_DigestFinal_ex(mctx, md, &mdlen))\n goto err;\n if (!CMS_signed_add1_attr_by_NID(si, NID_pkcs9_messageDigest,\n V_ASN1_OCTET_STRING, md, mdlen))\n goto err;\n if (CMS_signed_add1_attr_by_NID(si, NID_pkcs9_contentType,\n V_ASN1_OBJECT, ctype, -1) <= 0)\n goto err;\n if (!CMS_SignerInfo_sign(si))\n goto err;\n } else if (si->pctx) {\n unsigned char *sig;\n size_t siglen;\n unsigned char md[EVP_MAX_MD_SIZE];\n unsigned int mdlen;\n pctx = si->pctx;\n if (!EVP_DigestFinal_ex(mctx, md, &mdlen))\n goto err;\n siglen = EVP_PKEY_size(si->pkey);\n sig = OPENSSL_malloc(siglen);\n if (sig == NULL) {\n CMSerr(CMS_F_CMS_SIGNERINFO_CONTENT_SIGN, ERR_R_MALLOC_FAILURE);\n goto err;\n }\n if (EVP_PKEY_sign(pctx, sig, &siglen, md, mdlen) <= 0) {\n OPENSSL_free(sig);\n goto err;\n }\n ASN1_STRING_set0(si->signature, sig, siglen);\n } else {\n unsigned char *sig;\n unsigned int siglen;\n sig = OPENSSL_malloc(EVP_PKEY_size(si->pkey));\n if (sig == NULL) {\n CMSerr(CMS_F_CMS_SIGNERINFO_CONTENT_SIGN, ERR_R_MALLOC_FAILURE);\n goto err;\n }\n if (!EVP_SignFinal(mctx, sig, &siglen, si->pkey)) {\n CMSerr(CMS_F_CMS_SIGNERINFO_CONTENT_SIGN, CMS_R_SIGNFINAL_ERROR);\n OPENSSL_free(sig);\n goto err;\n }\n ASN1_STRING_set0(si->signature, sig, siglen);\n }\n r = 1;\n err:\n EVP_MD_CTX_free(mctx);\n EVP_PKEY_CTX_free(pctx);\n return r;\n}', 'EVP_MD_CTX *EVP_MD_CTX_new(void)\n{\n return OPENSSL_zalloc(sizeof(EVP_MD_CTX));\n}', 'void *CRYPTO_zalloc(size_t num, const char *file, int line)\n{\n void *ret = CRYPTO_malloc(num, file, line);\n if (ret != NULL)\n memset(ret, 0, num);\n return ret;\n}', 'void *CRYPTO_malloc(size_t num, const char *file, int line)\n{\n void *ret = NULL;\n if (malloc_impl != NULL && malloc_impl != CRYPTO_malloc)\n return malloc_impl(num, file, line);\n if (num <= 0)\n return NULL;\n allow_customize = 0;\n#ifndef OPENSSL_NO_CRYPTO_MDEBUG\n if (call_malloc_debug) {\n CRYPTO_mem_debug_malloc(NULL, num, 0, file, line);\n ret = malloc(num);\n CRYPTO_mem_debug_malloc(ret, num, 1, file, line);\n } else {\n ret = malloc(num);\n }\n#else\n osslargused(file); osslargused(line);\n ret = malloc(num);\n#endif\n return ret;\n}', 'int cms_DigestAlgorithm_find_ctx(EVP_MD_CTX *mctx, BIO *chain,\n X509_ALGOR *mdalg)\n{\n int nid;\n ASN1_OBJECT *mdoid;\n X509_ALGOR_get0(&mdoid, NULL, NULL, mdalg);\n nid = OBJ_obj2nid(mdoid);\n for (;;) {\n EVP_MD_CTX *mtmp;\n chain = BIO_find_type(chain, BIO_TYPE_MD);\n if (chain == NULL) {\n CMSerr(CMS_F_CMS_DIGESTALGORITHM_FIND_CTX,\n CMS_R_NO_MATCHING_DIGEST);\n return 0;\n }\n BIO_get_md_ctx(chain, &mtmp);\n if (EVP_MD_CTX_type(mtmp) == nid\n || EVP_MD_pkey_type(EVP_MD_CTX_md(mtmp)) == nid)\n return EVP_MD_CTX_copy_ex(mctx, mtmp);\n chain = BIO_next(chain);\n }\n}', 'void X509_ALGOR_get0(ASN1_OBJECT **paobj, int *pptype, void **ppval,\n X509_ALGOR *algor)\n{\n if (paobj)\n *paobj = algor->algorithm;\n if (pptype) {\n if (algor->parameter == NULL) {\n *pptype = V_ASN1_UNDEF;\n return;\n } else\n *pptype = algor->parameter->type;\n if (ppval)\n *ppval = algor->parameter->value.ptr;\n }\n}', 'int OBJ_obj2nid(const ASN1_OBJECT *a)\n{\n const unsigned int *op;\n ADDED_OBJ ad, *adp;\n if (a == NULL)\n return (NID_undef);\n if (a->nid != 0)\n return (a->nid);\n if (a->length == 0)\n return NID_undef;\n if (added != NULL) {\n ad.type = ADDED_DATA;\n ad.obj = (ASN1_OBJECT *)a;\n adp = lh_ADDED_OBJ_retrieve(added, &ad);\n if (adp != NULL)\n return (adp->obj->nid);\n }\n op = OBJ_bsearch_obj(&a, obj_objs, NUM_OBJ);\n if (op == NULL)\n return (NID_undef);\n return (nid_objs[*op].nid);\n}', 'DEFINE_LHASH_OF(ADDED_OBJ)', 'void *lh_retrieve(_LHASH *lh, const void *data)\n{\n unsigned long hash;\n LHASH_NODE **rn;\n void *ret;\n lh->error = 0;\n rn = getrn(lh, data, &hash);\n if (*rn == NULL) {\n lh->num_retrieve_miss++;\n return (NULL);\n } else {\n ret = (*rn)->data;\n lh->num_retrieve++;\n }\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}'] |
23,160 | 0 | https://github.com/openssl/openssl/blob/7ef8206859f9a52f48e817c023c744fe00e82c5d/apps/pkcs12.c/#L772 | int print_attribs (BIO *out, STACK_OF(X509_ATTRIBUTE) *attrlst, char *name)
{
X509_ATTRIBUTE *attr;
ASN1_TYPE *av;
char *value;
int i, attr_nid;
if(!attrlst) {
BIO_printf(out, "%s: <No Attributes>\n", name);
return 1;
}
if(!sk_X509_ATTRIBUTE_num(attrlst)) {
BIO_printf(out, "%s: <Empty Attributes>\n", name);
return 1;
}
BIO_printf(out, "%s\n", name);
for(i = 0; i < sk_X509_ATTRIBUTE_num(attrlst); i++) {
attr = sk_X509_ATTRIBUTE_value(attrlst, i);
attr_nid = OBJ_obj2nid(attr->object);
BIO_printf(out, " ");
if(attr_nid == NID_undef) {
i2a_ASN1_OBJECT (out, attr->object);
BIO_printf(out, ": ");
} else BIO_printf(out, "%s: ", OBJ_nid2ln(attr_nid));
if(sk_ASN1_TYPE_num(attr->value.set)) {
av = sk_ASN1_TYPE_value(attr->value.set, 0);
switch(av->type) {
case V_ASN1_BMPSTRING:
value = uni2asc(av->value.bmpstring->data,
av->value.bmpstring->length);
BIO_printf(out, "%s\n", value);
OPENSSL_free(value);
break;
case V_ASN1_OCTET_STRING:
hex_prin(out, av->value.bit_string->data,
av->value.bit_string->length);
BIO_printf(out, "\n");
break;
case V_ASN1_BIT_STRING:
hex_prin(out, av->value.octet_string->data,
av->value.octet_string->length);
BIO_printf(out, "\n");
break;
default:
BIO_printf(out, "<Unsupported tag %d>\n", av->type);
break;
}
} else BIO_printf(out, "<No Values>\n");
}
return 1;
} | ['int print_attribs (BIO *out, STACK_OF(X509_ATTRIBUTE) *attrlst, char *name)\n{\n\tX509_ATTRIBUTE *attr;\n\tASN1_TYPE *av;\n\tchar *value;\n\tint i, attr_nid;\n\tif(!attrlst) {\n\t\tBIO_printf(out, "%s: <No Attributes>\\n", name);\n\t\treturn 1;\n\t}\n\tif(!sk_X509_ATTRIBUTE_num(attrlst)) {\n\t\tBIO_printf(out, "%s: <Empty Attributes>\\n", name);\n\t\treturn 1;\n\t}\n\tBIO_printf(out, "%s\\n", name);\n\tfor(i = 0; i < sk_X509_ATTRIBUTE_num(attrlst); i++) {\n\t\tattr = sk_X509_ATTRIBUTE_value(attrlst, i);\n\t\tattr_nid = OBJ_obj2nid(attr->object);\n\t\tBIO_printf(out, " ");\n\t\tif(attr_nid == NID_undef) {\n\t\t\ti2a_ASN1_OBJECT (out, attr->object);\n\t\t\tBIO_printf(out, ": ");\n\t\t} else BIO_printf(out, "%s: ", OBJ_nid2ln(attr_nid));\n\t\tif(sk_ASN1_TYPE_num(attr->value.set)) {\n\t\t\tav = sk_ASN1_TYPE_value(attr->value.set, 0);\n\t\t\tswitch(av->type) {\n\t\t\t\tcase V_ASN1_BMPSTRING:\n \t\t\tvalue = uni2asc(av->value.bmpstring->data,\n \t av->value.bmpstring->length);\n\t\t\t\tBIO_printf(out, "%s\\n", value);\n\t\t\t\tOPENSSL_free(value);\n\t\t\t\tbreak;\n\t\t\t\tcase V_ASN1_OCTET_STRING:\n\t\t\t\thex_prin(out, av->value.bit_string->data,\n\t\t\t\t\tav->value.bit_string->length);\n\t\t\t\tBIO_printf(out, "\\n");\n\t\t\t\tbreak;\n\t\t\t\tcase V_ASN1_BIT_STRING:\n\t\t\t\thex_prin(out, av->value.octet_string->data,\n\t\t\t\t\tav->value.octet_string->length);\n\t\t\t\tBIO_printf(out, "\\n");\n\t\t\t\tbreak;\n\t\t\t\tdefault:\n\t\t\t\t\tBIO_printf(out, "<Unsupported tag %d>\\n", av->type);\n\t\t\t\tbreak;\n\t\t\t}\n\t\t} else BIO_printf(out, "<No Values>\\n");\n\t}\n\treturn 1;\n}', 'int sk_num(const STACK *st)\n{\n\tif(st == NULL) return -1;\n\treturn st->num;\n}', 'char *sk_value(const STACK *st, int i)\n{\n\tif(st == NULL) return NULL;\n\treturn st->data[i];\n}', 'int OBJ_obj2nid(ASN1_OBJECT *a)\n\t{\n\tASN1_OBJECT **op;\n\tADDED_OBJ ad,*adp;\n\tif (a == NULL)\n\t\treturn(NID_undef);\n\tif (a->nid != 0)\n\t\treturn(a->nid);\n\tif (added != NULL)\n\t\t{\n\t\tad.type=ADDED_DATA;\n\t\tad.obj=a;\n\t\tadp=(ADDED_OBJ *)lh_retrieve(added,&ad);\n\t\tif (adp != NULL) return (adp->obj->nid);\n\t\t}\n\top=(ASN1_OBJECT **)OBJ_bsearch((char *)&a,(char *)obj_objs,NUM_OBJ,\n\t\tsizeof(ASN1_OBJECT *),(int (*)())obj_cmp);\n\tif (op == NULL)\n\t\treturn(NID_undef);\n\treturn((*op)->nid);\n\t}', 'int i2a_ASN1_OBJECT(BIO *bp, ASN1_OBJECT *a)\n\t{\n\tchar buf[80];\n\tint i;\n\tif ((a == NULL) || (a->data == NULL))\n\t\treturn(BIO_write(bp,"NULL",4));\n\ti=i2t_ASN1_OBJECT(buf,80,a);\n\tif (i > 80) i=80;\n\tBIO_write(bp,buf,i);\n\treturn(i);\n\t}', 'int BIO_write(BIO *b, const void *in, int inl)\n\t{\n\tint i;\n\tlong (*cb)();\n\tif (b == NULL)\n\t\treturn(0);\n\tcb=b->callback;\n\tif ((b->method == NULL) || (b->method->bwrite == NULL))\n\t\t{\n\t\tBIOerr(BIO_F_BIO_WRITE,BIO_R_UNSUPPORTED_METHOD);\n\t\treturn(-2);\n\t\t}\n\tif ((cb != NULL) &&\n\t\t((i=(int)cb(b,BIO_CB_WRITE,in,inl,0L,1L)) <= 0))\n\t\t\treturn(i);\n\tif (!b->init)\n\t\t{\n\t\tBIOerr(BIO_F_BIO_WRITE,BIO_R_UNINITIALIZED);\n\t\treturn(-2);\n\t\t}\n\ti=b->method->bwrite(b,in,inl);\n\tif (i > 0) b->num_write+=(unsigned long)i;\n\tif (b->references <= 0) abort();\n\tif (cb != NULL)\n\t\ti=(int)cb(b,BIO_CB_WRITE|BIO_CB_RETURN,in,inl,\n\t\t\t0L,(long)i);\n\treturn(i);\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}'] |
23,161 | 0 | https://github.com/openssl/openssl/blob/bd01733fdd9a5a0acdc72cf5c6601d37e8ddd801/crypto/bn/bn_rand.c/#L88 | static int bnrand(BNRAND_FLAG flag, BIGNUM *rnd, int bits, int top, int bottom,
BN_CTX *ctx)
{
unsigned char *buf = NULL;
int b, ret = 0, bit, bytes, mask;
OPENSSL_CTX *libctx = bn_get_lib_ctx(ctx);
if (bits == 0) {
if (top != BN_RAND_TOP_ANY || bottom != BN_RAND_BOTTOM_ANY)
goto toosmall;
BN_zero(rnd);
return 1;
}
if (bits < 0 || (bits == 1 && top > 0))
goto toosmall;
bytes = (bits + 7) / 8;
bit = (bits - 1) % 8;
mask = 0xff << (bit + 1);
buf = OPENSSL_malloc(bytes);
if (buf == NULL) {
BNerr(BN_F_BNRAND, ERR_R_MALLOC_FAILURE);
goto err;
}
b = flag == NORMAL ? rand_bytes_ex(libctx, buf, bytes)
: rand_priv_bytes_ex(libctx, buf, bytes);
if (b <= 0)
goto err;
if (flag == TESTING) {
int i;
unsigned char c;
for (i = 0; i < bytes; i++) {
if (rand_bytes_ex(libctx, &c, 1) <= 0)
goto err;
if (c >= 128 && i > 0)
buf[i] = buf[i - 1];
else if (c < 42)
buf[i] = 0;
else if (c < 84)
buf[i] = 255;
}
}
if (top >= 0) {
if (top) {
if (bit == 0) {
buf[0] = 1;
buf[1] |= 0x80;
} else {
buf[0] |= (3 << (bit - 1));
}
} else {
buf[0] |= (1 << bit);
}
}
buf[0] &= ~mask;
if (bottom)
buf[bytes - 1] |= 1;
if (!BN_bin2bn(buf, bytes, rnd))
goto err;
ret = 1;
err:
OPENSSL_clear_free(buf, bytes);
bn_check_top(rnd);
return ret;
toosmall:
BNerr(BN_F_BNRAND, BN_R_BITS_TOO_SMALL);
return 0;
} | ['static int generate_key(DH *dh)\n{\n int ok = 0;\n int generate_new_key = 0;\n unsigned l;\n BN_CTX *ctx = NULL;\n BN_MONT_CTX *mont = NULL;\n BIGNUM *pub_key = NULL, *priv_key = NULL;\n if (BN_num_bits(dh->p) > OPENSSL_DH_MAX_MODULUS_BITS) {\n DHerr(DH_F_GENERATE_KEY, DH_R_MODULUS_TOO_LARGE);\n return 0;\n }\n ctx = BN_CTX_new();\n if (ctx == NULL)\n goto err;\n if (dh->priv_key == NULL) {\n priv_key = BN_secure_new();\n if (priv_key == NULL)\n goto err;\n generate_new_key = 1;\n } else\n priv_key = dh->priv_key;\n if (dh->pub_key == NULL) {\n pub_key = BN_new();\n if (pub_key == NULL)\n goto err;\n } else\n pub_key = dh->pub_key;\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 if (!mont)\n goto err;\n }\n if (generate_new_key) {\n if (dh->q) {\n do {\n if (!BN_priv_rand_range(priv_key, dh->q))\n goto err;\n }\n while (BN_is_zero(priv_key) || BN_is_one(priv_key));\n } else {\n l = dh->length ? dh->length : BN_num_bits(dh->p) - 1;\n if (!BN_priv_rand(priv_key, l, BN_RAND_TOP_ONE, BN_RAND_BOTTOM_ANY))\n goto err;\n }\n }\n {\n BIGNUM *prk = BN_new();\n if (prk == NULL)\n goto err;\n BN_with_flags(prk, priv_key, BN_FLG_CONSTTIME);\n if (!dh->meth->bn_mod_exp(dh, pub_key, dh->g, prk, dh->p, ctx, mont)) {\n BN_free(prk);\n goto err;\n }\n BN_free(prk);\n }\n dh->pub_key = pub_key;\n dh->priv_key = priv_key;\n ok = 1;\n err:\n if (ok != 1)\n DHerr(DH_F_GENERATE_KEY, ERR_R_BN_LIB);\n if (pub_key != dh->pub_key)\n BN_free(pub_key);\n if (priv_key != dh->priv_key)\n BN_free(priv_key);\n BN_CTX_free(ctx);\n return ok;\n}', 'int BN_priv_rand(BIGNUM *rnd, int bits, int top, int bottom)\n{\n return bnrand(PRIVATE, rnd, bits, top, bottom, NULL);\n}', 'static int bnrand(BNRAND_FLAG flag, BIGNUM *rnd, int bits, int top, int bottom,\n BN_CTX *ctx)\n{\n unsigned char *buf = NULL;\n int b, ret = 0, bit, bytes, mask;\n OPENSSL_CTX *libctx = bn_get_lib_ctx(ctx);\n if (bits == 0) {\n if (top != BN_RAND_TOP_ANY || bottom != BN_RAND_BOTTOM_ANY)\n goto toosmall;\n BN_zero(rnd);\n return 1;\n }\n if (bits < 0 || (bits == 1 && top > 0))\n goto toosmall;\n bytes = (bits + 7) / 8;\n bit = (bits - 1) % 8;\n mask = 0xff << (bit + 1);\n buf = OPENSSL_malloc(bytes);\n if (buf == NULL) {\n BNerr(BN_F_BNRAND, ERR_R_MALLOC_FAILURE);\n goto err;\n }\n b = flag == NORMAL ? rand_bytes_ex(libctx, buf, bytes)\n : rand_priv_bytes_ex(libctx, buf, bytes);\n if (b <= 0)\n goto err;\n if (flag == TESTING) {\n int i;\n unsigned char c;\n for (i = 0; i < bytes; i++) {\n if (rand_bytes_ex(libctx, &c, 1) <= 0)\n goto err;\n if (c >= 128 && i > 0)\n buf[i] = buf[i - 1];\n else if (c < 42)\n buf[i] = 0;\n else if (c < 84)\n buf[i] = 255;\n }\n }\n if (top >= 0) {\n if (top) {\n if (bit == 0) {\n buf[0] = 1;\n buf[1] |= 0x80;\n } else {\n buf[0] |= (3 << (bit - 1));\n }\n } else {\n buf[0] |= (1 << bit);\n }\n }\n buf[0] &= ~mask;\n if (bottom)\n buf[bytes - 1] |= 1;\n if (!BN_bin2bn(buf, bytes, rnd))\n goto err;\n ret = 1;\n err:\n OPENSSL_clear_free(buf, bytes);\n bn_check_top(rnd);\n return ret;\ntoosmall:\n BNerr(BN_F_BNRAND, BN_R_BITS_TOO_SMALL);\n return 0;\n}', 'void *CRYPTO_malloc(size_t num, const char *file, int line)\n{\n void *ret = NULL;\n INCREMENT(malloc_count);\n if (malloc_impl != NULL && malloc_impl != CRYPTO_malloc)\n return malloc_impl(num, file, line);\n if (num == 0)\n return NULL;\n FAILTEST();\n if (allow_customize) {\n allow_customize = 0;\n }\n#if !defined(OPENSSL_NO_CRYPTO_MDEBUG) && !defined(FIPS_MODE)\n if (call_malloc_debug) {\n CRYPTO_mem_debug_malloc(NULL, num, 0, file, line);\n ret = malloc(num);\n CRYPTO_mem_debug_malloc(ret, num, 1, file, line);\n } else {\n ret = malloc(num);\n }\n#else\n (void)(file); (void)(line);\n ret = malloc(num);\n#endif\n return ret;\n}'] |
23,162 | 0 | https://github.com/openssl/openssl/blob/5c98b2caf5ce545fbf77611431c7084979da8177/crypto/bn/bn_ctx.c/#L353 | static unsigned int BN_STACK_pop(BN_STACK *st)
{
return st->indexes[--(st->depth)];
} | ['static int RSA_eay_private_encrypt(int flen, const unsigned char *from,\n\t unsigned char *to, RSA *rsa, int padding)\n\t{\n\tBIGNUM *f,*ret;\n\tint i,j,k,num=0,r= -1;\n\tunsigned char *buf=NULL;\n\tBN_CTX *ctx=NULL;\n\tint local_blinding = 0;\n\tBN_BLINDING *blinding = NULL;\n\tif ((ctx=BN_CTX_new()) == NULL) goto err;\n\tBN_CTX_start(ctx);\n\tf = BN_CTX_get(ctx);\n\tret = BN_CTX_get(ctx);\n\tnum=BN_num_bytes(rsa->n);\n\tbuf = OPENSSL_malloc(num);\n\tif(!f || !ret || !buf)\n\t\t{\n\t\tRSAerr(RSA_F_RSA_EAY_PRIVATE_ENCRYPT,ERR_R_MALLOC_FAILURE);\n\t\tgoto err;\n\t\t}\n\tswitch (padding)\n\t\t{\n\tcase RSA_PKCS1_PADDING:\n\t\ti=RSA_padding_add_PKCS1_type_1(buf,num,from,flen);\n\t\tbreak;\n\tcase RSA_NO_PADDING:\n\t\ti=RSA_padding_add_none(buf,num,from,flen);\n\t\tbreak;\n\tcase RSA_SSLV23_PADDING:\n\tdefault:\n\t\tRSAerr(RSA_F_RSA_EAY_PRIVATE_ENCRYPT,RSA_R_UNKNOWN_PADDING_TYPE);\n\t\tgoto err;\n\t\t}\n\tif (i <= 0) goto err;\n\tif (BN_bin2bn(buf,num,f) == NULL) goto err;\n\tif (BN_ucmp(f, rsa->n) >= 0)\n\t\t{\n\t\tRSAerr(RSA_F_RSA_EAY_PRIVATE_ENCRYPT,RSA_R_DATA_TOO_LARGE_FOR_MODULUS);\n\t\tgoto err;\n\t\t}\n\tBLINDING_HELPER(rsa, ctx, goto err;);\n\tblinding = rsa->blinding;\n\tif (!(rsa->flags & RSA_FLAG_NO_BLINDING))\n\t\t{\n\t\tif (blinding == NULL)\n\t\t\t{\n\t\t\tRSAerr(RSA_F_RSA_EAY_PRIVATE_ENCRYPT, ERR_R_INTERNAL_ERROR);\n\t\t\tgoto err;\n\t\t\t}\n\t\t}\n\tif (blinding != NULL)\n\t\t{\n\t\tif (blinding->thread_id != CRYPTO_thread_id())\n\t\t\t{\n\t\t\tblinding = setup_blinding(rsa, ctx);\n\t\t\tif (blinding == NULL)\n\t\t\t\tgoto err;\n\t\t\tlocal_blinding = 1;\n\t\t\t}\n\t\t}\n\tif (blinding)\n\t\tif (!BN_BLINDING_convert(f, blinding, ctx)) goto err;\n\tif ( (rsa->flags & RSA_FLAG_EXT_PKEY) ||\n\t\t((rsa->p != NULL) &&\n\t\t(rsa->q != NULL) &&\n\t\t(rsa->dmp1 != NULL) &&\n\t\t(rsa->dmq1 != NULL) &&\n\t\t(rsa->iqmp != NULL)) )\n\t\t{ if (!rsa->meth->rsa_mod_exp(ret,f,rsa,ctx)) goto err; }\n\telse\n\t\t{\n\t\tMONT_HELPER(rsa, ctx, n, rsa->flags & RSA_FLAG_CACHE_PUBLIC, goto err);\n\t\tif (!rsa->meth->bn_mod_exp(ret,f,rsa->d,rsa->n,ctx,\n\t\t\t\trsa->_method_mod_n)) goto err;\n\t\t}\n\tif (blinding)\n\t\tif (!BN_BLINDING_invert(ret, blinding, ctx)) goto err;\n\tj=BN_num_bytes(ret);\n\ti=BN_bn2bin(ret,&(to[num-j]));\n\tfor (k=0; k<(num-i); k++)\n\t\tto[k]=0;\n\tr=num;\nerr:\n\tif (ctx != NULL)\n\t\t{\n\t\tBN_CTX_end(ctx);\n\t\tBN_CTX_free(ctx);\n\t\t}\n\tif (local_blinding)\n\t\tBN_BLINDING_free(blinding);\n\tif (buf != NULL)\n\t\t{\n\t\tOPENSSL_cleanse(buf,num);\n\t\tOPENSSL_free(buf);\n\t\t}\n\treturn(r);\n\t}', 'void BN_CTX_start(BN_CTX *ctx)\n\t{\n\tCTXDBG_ENTRY("BN_CTX_start", ctx);\n\tif(ctx->err_stack || ctx->too_many)\n\t\tctx->err_stack++;\n\telse if(!BN_STACK_push(&ctx->stack, ctx->used))\n\t\t{\n\t\tBNerr(BN_F_BN_CTX_GET,BN_R_TOO_MANY_TEMPORARY_VARIABLES);\n\t\tctx->err_stack++;\n\t\t}\n\tCTXDBG_EXIT(ctx);\n\t}', 'static BN_BLINDING *setup_blinding(RSA *rsa, BN_CTX *ctx)\n\t{\n\tBIGNUM *A, *Ai;\n\tBN_BLINDING *ret = NULL;\n\tBN_CTX_start(ctx);\n\tA = BN_CTX_get(ctx);\n\tif ((RAND_status() == 0) && rsa->d != NULL && rsa->d->d != NULL)\n\t\t{\n\t\tRAND_add(rsa->d->d, rsa->d->dmax * sizeof rsa->d->d[0], 0.0);\n\t\tif (!BN_pseudo_rand_range(A,rsa->n)) goto err;\n\t\t}\n\telse\n\t\t{\n\t\tif (!BN_rand_range(A,rsa->n)) goto err;\n\t\t}\n\tif ((Ai=BN_mod_inverse(NULL,A,rsa->n,ctx)) == NULL) goto err;\n\tif (!rsa->meth->bn_mod_exp(A,A,rsa->e,rsa->n,ctx,rsa->_method_mod_n))\n\t\tgoto err;\n\tret = BN_BLINDING_new(A,Ai,rsa->n);\n\tBN_free(Ai);\nerr:\n\tBN_CTX_end(ctx);\n\treturn ret;\n\t}', 'BIGNUM *BN_mod_inverse(BIGNUM *in,\n\tconst BIGNUM *a, const BIGNUM *n, BN_CTX *ctx)\n\t{\n\tBIGNUM *A,*B,*X,*Y,*M,*D,*T,*R=NULL;\n\tBIGNUM *ret=NULL;\n\tint sign;\n\tbn_check_top(a);\n\tbn_check_top(n);\n\tBN_CTX_start(ctx);\n\tA = BN_CTX_get(ctx);\n\tB = BN_CTX_get(ctx);\n\tX = BN_CTX_get(ctx);\n\tD = BN_CTX_get(ctx);\n\tM = BN_CTX_get(ctx);\n\tY = BN_CTX_get(ctx);\n\tT = BN_CTX_get(ctx);\n\tif (T == NULL) goto err;\n\tif (in == NULL)\n\t\tR=BN_new();\n\telse\n\t\tR=in;\n\tif (R == NULL) goto err;\n\tBN_one(X);\n\tBN_zero(Y);\n\tif (BN_copy(B,a) == NULL) goto err;\n\tif (BN_copy(A,n) == NULL) goto err;\n\tA->neg = 0;\n\tif (B->neg || (BN_ucmp(B, A) >= 0))\n\t\t{\n\t\tif (!BN_nnmod(B, B, A, ctx)) goto err;\n\t\t}\n\tsign = -1;\n\tif (BN_is_odd(n) && (BN_num_bits(n) <= (BN_BITS <= 32 ? 450 : 2048)))\n\t\t{\n\t\tint shift;\n\t\twhile (!BN_is_zero(B))\n\t\t\t{\n\t\t\tshift = 0;\n\t\t\twhile (!BN_is_bit_set(B, shift))\n\t\t\t\t{\n\t\t\t\tshift++;\n\t\t\t\tif (BN_is_odd(X))\n\t\t\t\t\t{\n\t\t\t\t\tif (!BN_uadd(X, X, n)) goto err;\n\t\t\t\t\t}\n\t\t\t\tif (!BN_rshift1(X, X)) goto err;\n\t\t\t\t}\n\t\t\tif (shift > 0)\n\t\t\t\t{\n\t\t\t\tif (!BN_rshift(B, B, shift)) goto err;\n\t\t\t\t}\n\t\t\tshift = 0;\n\t\t\twhile (!BN_is_bit_set(A, shift))\n\t\t\t\t{\n\t\t\t\tshift++;\n\t\t\t\tif (BN_is_odd(Y))\n\t\t\t\t\t{\n\t\t\t\t\tif (!BN_uadd(Y, Y, n)) goto err;\n\t\t\t\t\t}\n\t\t\t\tif (!BN_rshift1(Y, Y)) goto err;\n\t\t\t\t}\n\t\t\tif (shift > 0)\n\t\t\t\t{\n\t\t\t\tif (!BN_rshift(A, A, shift)) goto err;\n\t\t\t\t}\n\t\t\tif (BN_ucmp(B, A) >= 0)\n\t\t\t\t{\n\t\t\t\tif (!BN_uadd(X, X, Y)) goto err;\n\t\t\t\tif (!BN_usub(B, B, A)) goto err;\n\t\t\t\t}\n\t\t\telse\n\t\t\t\t{\n\t\t\t\tif (!BN_uadd(Y, Y, X)) goto err;\n\t\t\t\tif (!BN_usub(A, A, B)) goto err;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\telse\n\t\t{\n\t\twhile (!BN_is_zero(B))\n\t\t\t{\n\t\t\tBIGNUM *tmp;\n\t\t\tif (BN_num_bits(A) == BN_num_bits(B))\n\t\t\t\t{\n\t\t\t\tif (!BN_one(D)) goto err;\n\t\t\t\tif (!BN_sub(M,A,B)) goto err;\n\t\t\t\t}\n\t\t\telse if (BN_num_bits(A) == BN_num_bits(B) + 1)\n\t\t\t\t{\n\t\t\t\tif (!BN_lshift1(T,B)) goto err;\n\t\t\t\tif (BN_ucmp(A,T) < 0)\n\t\t\t\t\t{\n\t\t\t\t\tif (!BN_one(D)) goto err;\n\t\t\t\t\tif (!BN_sub(M,A,B)) goto err;\n\t\t\t\t\t}\n\t\t\t\telse\n\t\t\t\t\t{\n\t\t\t\t\tif (!BN_sub(M,A,T)) goto err;\n\t\t\t\t\tif (!BN_add(D,T,B)) goto err;\n\t\t\t\t\tif (BN_ucmp(A,D) < 0)\n\t\t\t\t\t\t{\n\t\t\t\t\t\tif (!BN_set_word(D,2)) goto err;\n\t\t\t\t\t\t}\n\t\t\t\t\telse\n\t\t\t\t\t\t{\n\t\t\t\t\t\tif (!BN_set_word(D,3)) goto err;\n\t\t\t\t\t\tif (!BN_sub(M,M,B)) goto err;\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\telse\n\t\t\t\t{\n\t\t\t\tif (!BN_div(D,M,A,B,ctx)) goto err;\n\t\t\t\t}\n\t\t\ttmp=A;\n\t\t\tA=B;\n\t\t\tB=M;\n\t\t\tif (BN_is_one(D))\n\t\t\t\t{\n\t\t\t\tif (!BN_add(tmp,X,Y)) goto err;\n\t\t\t\t}\n\t\t\telse\n\t\t\t\t{\n\t\t\t\tif (BN_is_word(D,2))\n\t\t\t\t\t{\n\t\t\t\t\tif (!BN_lshift1(tmp,X)) goto err;\n\t\t\t\t\t}\n\t\t\t\telse if (BN_is_word(D,4))\n\t\t\t\t\t{\n\t\t\t\t\tif (!BN_lshift(tmp,X,2)) goto err;\n\t\t\t\t\t}\n\t\t\t\telse if (D->top == 1)\n\t\t\t\t\t{\n\t\t\t\t\tif (!BN_copy(tmp,X)) goto err;\n\t\t\t\t\tif (!BN_mul_word(tmp,D->d[0])) goto err;\n\t\t\t\t\t}\n\t\t\t\telse\n\t\t\t\t\t{\n\t\t\t\t\tif (!BN_mul(tmp,D,X,ctx)) goto err;\n\t\t\t\t\t}\n\t\t\t\tif (!BN_add(tmp,tmp,Y)) goto err;\n\t\t\t\t}\n\t\t\tM=Y;\n\t\t\tY=X;\n\t\t\tX=tmp;\n\t\t\tsign = -sign;\n\t\t\t}\n\t\t}\n\tif (sign < 0)\n\t\t{\n\t\tif (!BN_sub(Y,n,Y)) goto err;\n\t\t}\n\tif (BN_is_one(A))\n\t\t{\n\t\tif (!Y->neg && BN_ucmp(Y,n) < 0)\n\t\t\t{\n\t\t\tif (!BN_copy(R,Y)) goto err;\n\t\t\t}\n\t\telse\n\t\t\t{\n\t\t\tif (!BN_nnmod(R,Y,n,ctx)) goto err;\n\t\t\t}\n\t\t}\n\telse\n\t\t{\n\t\tBNerr(BN_F_BN_MOD_INVERSE,BN_R_NO_INVERSE);\n\t\tgoto err;\n\t\t}\n\tret=R;\nerr:\n\tif ((ret == NULL) && (in == NULL)) BN_free(R);\n\tBN_CTX_end(ctx);\n\tif (ret)\n\t\tbn_check_top(ret);\n\treturn(ret);\n\t}', 'int BN_nnmod(BIGNUM *r, const BIGNUM *m, const BIGNUM *d, BN_CTX *ctx)\n\t{\n\tif (!(BN_mod(r,m,d,ctx)))\n\t\treturn 0;\n\tif (!r->neg)\n\t\treturn 1;\n\treturn (d->neg ? BN_sub : BN_add)(r, r, d);\n}', 'int BN_div(BIGNUM *dv, BIGNUM *rm, const BIGNUM *num, const BIGNUM *divisor,\n\t BN_CTX *ctx)\n\t{\n\tint norm_shift,i,loop;\n\tBIGNUM *tmp,wnum,*snum,*sdiv,*res;\n\tBN_ULONG *resp,*wnump;\n\tBN_ULONG d0,d1;\n\tint num_n,div_n;\n\tif (dv)\n\t\tbn_check_top(dv);\n\tif (rm)\n\t\tbn_check_top(rm);\n\tbn_check_top(num);\n\tbn_check_top(divisor);\n\tif (BN_is_zero(divisor))\n\t\t{\n\t\tBNerr(BN_F_BN_DIV,BN_R_DIV_BY_ZERO);\n\t\treturn(0);\n\t\t}\n\tif (BN_ucmp(num,divisor) < 0)\n\t\t{\n\t\tif (rm != NULL)\n\t\t\t{ if (BN_copy(rm,num) == NULL) return(0); }\n\t\tif (dv != NULL) BN_zero(dv);\n\t\treturn(1);\n\t\t}\n\tBN_CTX_start(ctx);\n\ttmp=BN_CTX_get(ctx);\n\tsnum=BN_CTX_get(ctx);\n\tsdiv=BN_CTX_get(ctx);\n\tif (dv == NULL)\n\t\tres=BN_CTX_get(ctx);\n\telse\tres=dv;\n\tif (sdiv == NULL || res == NULL) goto err;\n\tnorm_shift=BN_BITS2-((BN_num_bits(divisor))%BN_BITS2);\n\tif (!(BN_lshift(sdiv,divisor,norm_shift))) goto err;\n\tsdiv->neg=0;\n\tnorm_shift+=BN_BITS2;\n\tif (!(BN_lshift(snum,num,norm_shift))) goto err;\n\tsnum->neg=0;\n\tdiv_n=sdiv->top;\n\tnum_n=snum->top;\n\tloop=num_n-div_n;\n\twnum.neg = 0;\n\twnum.d = &(snum->d[loop]);\n\twnum.top = div_n;\n\twnum.dmax = snum->dmax - loop;\n\td0=sdiv->d[div_n-1];\n\td1=(div_n == 1)?0:sdiv->d[div_n-2];\n\twnump= &(snum->d[num_n-1]);\n\tres->neg= (num->neg^divisor->neg);\n\tif (!bn_wexpand(res,(loop+1))) goto err;\n\tres->top=loop;\n\tresp= &(res->d[loop-1]);\n\tif (!bn_wexpand(tmp,(div_n+1))) goto err;\n\tif (BN_ucmp(&wnum,sdiv) >= 0)\n\t\t{\n\t\tbn_clear_top2max(&wnum);\n\t\tbn_sub_words(wnum.d, wnum.d, sdiv->d, div_n);\n\t\t*resp=1;\n\t\t}\n\telse\n\t\tres->top--;\n\tif (res->top == 0)\n\t\tres->neg = 0;\n\telse\n\t\tresp--;\n\tfor (i=0; i<loop-1; i++, wnump--, resp--)\n\t\t{\n\t\tBN_ULONG q,l0;\n#if defined(BN_DIV3W) && !defined(OPENSSL_NO_ASM)\n\t\tBN_ULONG bn_div_3_words(BN_ULONG*,BN_ULONG,BN_ULONG);\n\t\tq=bn_div_3_words(wnump,d1,d0);\n#else\n\t\tBN_ULONG n0,n1,rem=0;\n\t\tn0=wnump[0];\n\t\tn1=wnump[-1];\n\t\tif (n0 == d0)\n\t\t\tq=BN_MASK2;\n\t\telse\n\t\t\t{\n#ifdef BN_LLONG\n\t\t\tBN_ULLONG t2;\n#if defined(BN_LLONG) && defined(BN_DIV2W) && !defined(bn_div_words)\n\t\t\tq=(BN_ULONG)(((((BN_ULLONG)n0)<<BN_BITS2)|n1)/d0);\n#else\n\t\t\tq=bn_div_words(n0,n1,d0);\n#ifdef BN_DEBUG_LEVITTE\n\t\t\tfprintf(stderr,"DEBUG: bn_div_words(0x%08X,0x%08X,0x%08\\\nX) -> 0x%08X\\n",\n\t\t\t\tn0, n1, d0, q);\n#endif\n#endif\n#ifndef REMAINDER_IS_ALREADY_CALCULATED\n\t\t\trem=(n1-q*d0)&BN_MASK2;\n#endif\n\t\t\tt2=(BN_ULLONG)d1*q;\n\t\t\tfor (;;)\n\t\t\t\t{\n\t\t\t\tif (t2 <= ((((BN_ULLONG)rem)<<BN_BITS2)|wnump[-2]))\n\t\t\t\t\tbreak;\n\t\t\t\tq--;\n\t\t\t\trem += d0;\n\t\t\t\tif (rem < d0) break;\n\t\t\t\tt2 -= d1;\n\t\t\t\t}\n#else\n\t\t\tBN_ULONG t2l,t2h,ql,qh;\n\t\t\tq=bn_div_words(n0,n1,d0);\n#ifdef BN_DEBUG_LEVITTE\n\t\t\tfprintf(stderr,"DEBUG: bn_div_words(0x%08X,0x%08X,0x%08\\\nX) -> 0x%08X\\n",\n\t\t\t\tn0, n1, d0, q);\n#endif\n#ifndef REMAINDER_IS_ALREADY_CALCULATED\n\t\t\trem=(n1-q*d0)&BN_MASK2;\n#endif\n#if defined(BN_UMULT_LOHI)\n\t\t\tBN_UMULT_LOHI(t2l,t2h,d1,q);\n#elif defined(BN_UMULT_HIGH)\n\t\t\tt2l = d1 * q;\n\t\t\tt2h = BN_UMULT_HIGH(d1,q);\n#else\n\t\t\tt2l=LBITS(d1); t2h=HBITS(d1);\n\t\t\tql =LBITS(q); qh =HBITS(q);\n\t\t\tmul64(t2l,t2h,ql,qh);\n#endif\n\t\t\tfor (;;)\n\t\t\t\t{\n\t\t\t\tif ((t2h < rem) ||\n\t\t\t\t\t((t2h == rem) && (t2l <= wnump[-2])))\n\t\t\t\t\tbreak;\n\t\t\t\tq--;\n\t\t\t\trem += d0;\n\t\t\t\tif (rem < d0) break;\n\t\t\t\tif (t2l < d1) t2h--; t2l -= d1;\n\t\t\t\t}\n#endif\n\t\t\t}\n#endif\n\t\tl0=bn_mul_words(tmp->d,sdiv->d,div_n,q);\n\t\ttmp->d[div_n]=l0;\n\t\twnum.d--;\n\t\tif (bn_sub_words(wnum.d, wnum.d, tmp->d, div_n+1))\n\t\t\t{\n\t\t\tq--;\n\t\t\tif (bn_add_words(wnum.d, wnum.d, sdiv->d, div_n))\n\t\t\t\t(*wnump)++;\n\t\t\t}\n\t\t*resp = q;\n\t\t}\n\tbn_correct_top(snum);\n\tif (rm != NULL)\n\t\t{\n\t\tint neg = num->neg;\n\t\tBN_rshift(rm,snum,norm_shift);\n\t\tif (!BN_is_zero(rm))\n\t\t\trm->neg = neg;\n\t\tbn_check_top(rm);\n\t\t}\n\tBN_CTX_end(ctx);\n\treturn(1);\nerr:\n\tif (rm)\n\t\tbn_check_top(rm);\n\tBN_CTX_end(ctx);\n\treturn(0);\n\t}', 'void BN_CTX_end(BN_CTX *ctx)\n\t{\n\tCTXDBG_ENTRY("BN_CTX_end", ctx);\n\tif(ctx->err_stack)\n\t\tctx->err_stack--;\n\telse\n\t\t{\n\t\tunsigned int fp = BN_STACK_pop(&ctx->stack);\n\t\tif(fp < ctx->used)\n\t\t\tBN_POOL_release(&ctx->pool, ctx->used - fp);\n\t\tctx->used = fp;\n\t\tctx->too_many = 0;\n\t\t}\n\tCTXDBG_EXIT(ctx);\n\t}', 'static unsigned int BN_STACK_pop(BN_STACK *st)\n\t{\n\treturn st->indexes[--(st->depth)];\n\t}'] |
23,163 | 0 | https://github.com/openssl/openssl/blob/54d00677f305375eee65a0c9edb5f0980c5f020f/crypto/bn/bn_lib.c/#L232 | static BN_ULONG *bn_expand_internal(const BIGNUM *b, int words)
{
BN_ULONG *a = NULL;
if (words > (INT_MAX / (4 * BN_BITS2))) {
BNerr(BN_F_BN_EXPAND_INTERNAL, BN_R_BIGNUM_TOO_LONG);
return NULL;
}
if (BN_get_flags(b, BN_FLG_STATIC_DATA)) {
BNerr(BN_F_BN_EXPAND_INTERNAL, BN_R_EXPAND_ON_STATIC_BIGNUM_DATA);
return NULL;
}
if (BN_get_flags(b, BN_FLG_SECURE))
a = OPENSSL_secure_zalloc(words * sizeof(*a));
else
a = OPENSSL_zalloc(words * sizeof(*a));
if (a == NULL) {
BNerr(BN_F_BN_EXPAND_INTERNAL, ERR_R_MALLOC_FAILURE);
return NULL;
}
assert(b->top <= words);
if (b->top > 0)
memcpy(a, b->d, sizeof(*a) * b->top);
return a;
} | ['int ec_GFp_simple_ladder_post(const EC_GROUP *group,\n EC_POINT *r, EC_POINT *s,\n EC_POINT *p, BN_CTX *ctx)\n{\n int ret = 0;\n BIGNUM *t0, *t1, *t2, *t3, *t4, *t5, *t6 = NULL;\n if (BN_is_zero(r->Z))\n return EC_POINT_set_to_infinity(group, r);\n if (BN_is_zero(s->Z)) {\n if (!group->meth->field_mul(group, r->X, p->X, p->Z, ctx)\n || !group->meth->field_sqr(group, r->Z, p->Z, ctx)\n || !group->meth->field_mul(group, r->Y, p->Y, r->Z, ctx)\n || !BN_copy(r->Z, p->Z)\n || !EC_POINT_invert(group, r, ctx))\n return 0;\n return 1;\n }\n BN_CTX_start(ctx);\n t0 = BN_CTX_get(ctx);\n t1 = BN_CTX_get(ctx);\n t2 = BN_CTX_get(ctx);\n t3 = BN_CTX_get(ctx);\n t4 = BN_CTX_get(ctx);\n t5 = BN_CTX_get(ctx);\n t6 = BN_CTX_get(ctx);\n if (t6 == NULL\n || !BN_mod_lshift1_quick(t0, p->Y, group->field)\n || !group->meth->field_mul(group, t1, r->X, p->Z, ctx)\n || !group->meth->field_mul(group, t2, r->Z, s->Z, ctx)\n || !group->meth->field_mul(group, t2, t1, t2, ctx)\n || !group->meth->field_mul(group, t3, t2, t0, ctx)\n || !group->meth->field_mul(group, t2, r->Z, p->Z, ctx)\n || !group->meth->field_sqr(group, t4, t2, ctx)\n || !BN_mod_lshift1_quick(t5, group->b, group->field)\n || !group->meth->field_mul(group, t4, t4, t5, ctx)\n || !group->meth->field_mul(group, t6, t2, group->a, ctx)\n || !group->meth->field_mul(group, t5, r->X, p->X, ctx)\n || !BN_mod_add_quick(t5, t6, t5, group->field)\n || !group->meth->field_mul(group, t6, r->Z, p->X, ctx)\n || !BN_mod_add_quick(t2, t6, t1, group->field)\n || !group->meth->field_mul(group, t5, t5, t2, ctx)\n || !BN_mod_sub_quick(t6, t6, t1, group->field)\n || !group->meth->field_sqr(group, t6, t6, ctx)\n || !group->meth->field_mul(group, t6, t6, s->X, ctx)\n || !BN_mod_add_quick(t4, t5, t4, group->field)\n || !group->meth->field_mul(group, t4, t4, s->Z, ctx)\n || !BN_mod_sub_quick(t4, t4, t6, group->field)\n || !group->meth->field_sqr(group, t5, r->Z, ctx)\n || !group->meth->field_mul(group, r->Z, p->Z, s->Z, ctx)\n || !group->meth->field_mul(group, r->Z, t5, r->Z, ctx)\n || !group->meth->field_mul(group, r->Z, r->Z, t0, ctx)\n || !group->meth->field_mul(group, r->X, t3, r->Z, ctx)\n || !group->meth->field_sqr(group, t3, r->Z, ctx)\n || !group->meth->field_mul(group, r->Y, t4, t3, ctx))\n goto err;\n ret = 1;\n err:\n BN_CTX_end(ctx);\n return ret;\n}', 'BIGNUM *BN_CTX_get(BN_CTX *ctx)\n{\n BIGNUM *ret;\n CTXDBG_ENTRY("BN_CTX_get", ctx);\n if (ctx->err_stack || ctx->too_many)\n return NULL;\n if ((ret = BN_POOL_get(&ctx->pool, ctx->flags)) == NULL) {\n ctx->too_many = 1;\n BNerr(BN_F_BN_CTX_GET, BN_R_TOO_MANY_TEMPORARY_VARIABLES);\n return NULL;\n }\n BN_zero(ret);\n ret->flags &= (~BN_FLG_CONSTTIME);\n ctx->used++;\n CTXDBG_RET(ctx, ret);\n return ret;\n}', 'int BN_set_word(BIGNUM *a, BN_ULONG w)\n{\n bn_check_top(a);\n if (bn_expand(a, (int)sizeof(BN_ULONG) * 8) == NULL)\n return 0;\n a->neg = 0;\n a->d[0] = w;\n a->top = (w ? 1 : 0);\n a->flags &= ~BN_FLG_FIXED_TOP;\n bn_check_top(a);\n return 1;\n}', 'int BN_mod_lshift1_quick(BIGNUM *r, const BIGNUM *a, const BIGNUM *m)\n{\n if (!BN_lshift1(r, a))\n return 0;\n bn_check_top(r);\n if (BN_cmp(r, m) >= 0)\n return BN_sub(r, r, m);\n return 1;\n}', 'int BN_lshift1(BIGNUM *r, const BIGNUM *a)\n{\n register BN_ULONG *ap, *rp, t, c;\n int i;\n bn_check_top(r);\n bn_check_top(a);\n if (r != a) {\n r->neg = a->neg;\n if (bn_wexpand(r, a->top + 1) == NULL)\n return 0;\n r->top = a->top;\n } else {\n if (bn_wexpand(r, a->top + 1) == NULL)\n return 0;\n }\n ap = a->d;\n rp = r->d;\n c = 0;\n for (i = 0; i < a->top; i++) {\n t = *(ap++);\n *(rp++) = ((t << 1) | c) & BN_MASK2;\n c = (t & BN_TBIT) ? 1 : 0;\n }\n if (c) {\n *rp = 1;\n r->top++;\n }\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}', 'BIGNUM *bn_expand2(BIGNUM *b, int words)\n{\n if (words > b->dmax) {\n BN_ULONG *a = bn_expand_internal(b, words);\n if (!a)\n return NULL;\n if (b->d) {\n OPENSSL_cleanse(b->d, b->dmax * sizeof(b->d[0]));\n bn_free_d(b);\n }\n b->d = a;\n b->dmax = words;\n }\n return b;\n}', 'static BN_ULONG *bn_expand_internal(const BIGNUM *b, int words)\n{\n BN_ULONG *a = NULL;\n if (words > (INT_MAX / (4 * BN_BITS2))) {\n BNerr(BN_F_BN_EXPAND_INTERNAL, BN_R_BIGNUM_TOO_LONG);\n return NULL;\n }\n if (BN_get_flags(b, BN_FLG_STATIC_DATA)) {\n BNerr(BN_F_BN_EXPAND_INTERNAL, BN_R_EXPAND_ON_STATIC_BIGNUM_DATA);\n return NULL;\n }\n if (BN_get_flags(b, BN_FLG_SECURE))\n a = OPENSSL_secure_zalloc(words * sizeof(*a));\n else\n a = OPENSSL_zalloc(words * sizeof(*a));\n if (a == NULL) {\n BNerr(BN_F_BN_EXPAND_INTERNAL, ERR_R_MALLOC_FAILURE);\n return NULL;\n }\n assert(b->top <= words);\n if (b->top > 0)\n memcpy(a, b->d, sizeof(*a) * b->top);\n return a;\n}', 'void *CRYPTO_zalloc(size_t num, const char *file, int line)\n{\n void *ret = CRYPTO_malloc(num, file, line);\n FAILTEST();\n if (ret != NULL)\n memset(ret, 0, num);\n return ret;\n}', 'void *CRYPTO_malloc(size_t num, const char *file, int line)\n{\n void *ret = NULL;\n INCREMENT(malloc_count);\n if (malloc_impl != NULL && malloc_impl != CRYPTO_malloc)\n return malloc_impl(num, file, line);\n if (num == 0)\n return NULL;\n FAILTEST();\n if (allow_customize) {\n allow_customize = 0;\n }\n#ifndef OPENSSL_NO_CRYPTO_MDEBUG\n if (call_malloc_debug) {\n CRYPTO_mem_debug_malloc(NULL, num, 0, file, line);\n ret = malloc(num);\n CRYPTO_mem_debug_malloc(ret, num, 1, file, line);\n } else {\n ret = malloc(num);\n }\n#else\n (void)(file); (void)(line);\n ret = malloc(num);\n#endif\n return ret;\n}'] |
23,164 | 0 | https://github.com/openssl/openssl/blob/54d00677f305375eee65a0c9edb5f0980c5f020f/crypto/bn/bn_lib.c/#L703 | int bn_cmp_words(const BN_ULONG *a, const BN_ULONG *b, int n)
{
int i;
BN_ULONG aa, bb;
aa = a[n - 1];
bb = b[n - 1];
if (aa != bb)
return ((aa > bb) ? 1 : -1);
for (i = n - 2; i >= 0; i--) {
aa = a[i];
bb = b[i];
if (aa != bb)
return ((aa > bb) ? 1 : -1);
}
return 0;
} | ['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(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 ret->flags &= (~BN_FLG_CONSTTIME);\n ctx->used++;\n CTXDBG_RET(ctx, ret);\n return ret;\n}', 'int BN_set_word(BIGNUM *a, BN_ULONG w)\n{\n bn_check_top(a);\n if (bn_expand(a, (int)sizeof(BN_ULONG) * 8) == NULL)\n return 0;\n a->neg = 0;\n a->d[0] = w;\n a->top = (w ? 1 : 0);\n a->flags &= ~BN_FLG_FIXED_TOP;\n bn_check_top(a);\n return 1;\n}', 'static ossl_inline BIGNUM *bn_expand(BIGNUM *a, int bits)\n{\n if (bits > (INT_MAX - BN_BITS2 + 1))\n return NULL;\n if (((bits+BN_BITS2-1)/BN_BITS2) <= (a)->dmax)\n return a;\n return bn_expand2((a),(bits+BN_BITS2-1)/BN_BITS2);\n}', 'int BN_mod_mul(BIGNUM *r, const BIGNUM *a, const BIGNUM *b, const BIGNUM *m,\n BN_CTX *ctx)\n{\n BIGNUM *t;\n int ret = 0;\n bn_check_top(a);\n bn_check_top(b);\n bn_check_top(m);\n BN_CTX_start(ctx);\n if ((t = BN_CTX_get(ctx)) == NULL)\n goto err;\n if (a == b) {\n if (!BN_sqr(t, a, ctx))\n goto err;\n } else {\n if (!BN_mul(t, a, b, ctx))\n goto err;\n }\n if (!BN_nnmod(r, t, m, ctx))\n goto err;\n bn_check_top(r);\n ret = 1;\n err:\n BN_CTX_end(ctx);\n return ret;\n}', 'int BN_mul(BIGNUM *r, const BIGNUM *a, const BIGNUM *b, BN_CTX *ctx)\n{\n int ret = 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_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}', 'int bn_cmp_words(const BN_ULONG *a, const BN_ULONG *b, int n)\n{\n int i;\n BN_ULONG aa, bb;\n aa = a[n - 1];\n bb = b[n - 1];\n if (aa != bb)\n return ((aa > bb) ? 1 : -1);\n for (i = n - 2; i >= 0; i--) {\n aa = a[i];\n bb = b[i];\n if (aa != bb)\n return ((aa > bb) ? 1 : -1);\n }\n return 0;\n}'] |
23,165 | 0 | https://github.com/libav/libav/blob/df84d7d9bdf6b8e6896c711880f130b72738c828/libavcodec/mpegaudiodec.c/#L899 | void ff_mpa_synth_filter(MPA_INT *synth_buf_ptr, int *synth_buf_offset,
MPA_INT *window, int *dither_state,
OUT_INT *samples, int incr,
int32_t sb_samples[SBLIMIT])
{
register MPA_INT *synth_buf;
register const MPA_INT *w, *w2, *p;
int j, offset;
OUT_INT *samples2;
#if FRAC_BITS <= 15
int32_t tmp[32];
int sum, sum2;
#else
int64_t sum, sum2;
#endif
offset = *synth_buf_offset;
synth_buf = synth_buf_ptr + offset;
#if FRAC_BITS <= 15
dct32(tmp, sb_samples);
for(j=0;j<32;j++) {
synth_buf[j] = av_clip_int16(tmp[j]);
}
#else
dct32(synth_buf, sb_samples);
#endif
memcpy(synth_buf + 512, synth_buf, 32 * sizeof(MPA_INT));
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;
offset = (offset - 32) & 511;
*synth_buf_offset = offset;
} | ['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 int32_t sb_samples[SBLIMIT])\n{\n register MPA_INT *synth_buf;\n register const MPA_INT *w, *w2, *p;\n int j, offset;\n OUT_INT *samples2;\n#if FRAC_BITS <= 15\n int32_t tmp[32];\n int sum, sum2;\n#else\n int64_t sum, sum2;\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 memcpy(synth_buf + 512, synth_buf, 32 * sizeof(MPA_INT));\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 offset = (offset - 32) & 511;\n *synth_buf_offset = offset;\n}'] |
23,166 | 0 | https://github.com/openssl/openssl/blob/8da94770f0a049497b1a52ee469cca1f4a13b1a7/crypto/x509/by_dir.c/#L215 | static int add_cert_dir(BY_DIR *ctx, const char *dir, int type)
{
int j, len;
const char *s, *ss, *p;
if (dir == NULL || !*dir) {
X509err(X509_F_ADD_CERT_DIR, X509_R_INVALID_DIRECTORY);
return 0;
}
s = dir;
p = s;
do {
if ((*p == LIST_SEPARATOR_CHAR) || (*p == '\0')) {
BY_DIR_ENTRY *ent;
ss = s;
s = p + 1;
len = (int)(p - ss);
if (len == 0)
continue;
for (j = 0; j < sk_BY_DIR_ENTRY_num(ctx->dirs); j++) {
ent = sk_BY_DIR_ENTRY_value(ctx->dirs, j);
if (strlen(ent->dir) == (size_t)len &&
strncmp(ent->dir, ss, (unsigned int)len) == 0)
break;
}
if (j < sk_BY_DIR_ENTRY_num(ctx->dirs))
continue;
if (ctx->dirs == NULL) {
ctx->dirs = sk_BY_DIR_ENTRY_new_null();
if (!ctx->dirs) {
X509err(X509_F_ADD_CERT_DIR, ERR_R_MALLOC_FAILURE);
return 0;
}
}
ent = OPENSSL_malloc(sizeof(*ent));
if (ent == NULL)
return 0;
ent->dir_type = type;
ent->hashes = sk_BY_DIR_HASH_new(by_dir_hash_cmp);
ent->dir = OPENSSL_malloc((unsigned int)len + 1);
if (ent->dir == NULL || ent->hashes == NULL) {
by_dir_entry_free(ent);
return 0;
}
strncpy(ent->dir, ss, (unsigned int)len);
ent->dir[len] = '\0';
if (!sk_BY_DIR_ENTRY_push(ctx->dirs, ent)) {
by_dir_entry_free(ent);
return 0;
}
}
} while (*p++ != '\0');
return 1;
} | ["static int add_cert_dir(BY_DIR *ctx, const char *dir, int type)\n{\n int j, len;\n const char *s, *ss, *p;\n if (dir == NULL || !*dir) {\n X509err(X509_F_ADD_CERT_DIR, X509_R_INVALID_DIRECTORY);\n return 0;\n }\n s = dir;\n p = s;\n do {\n if ((*p == LIST_SEPARATOR_CHAR) || (*p == '\\0')) {\n BY_DIR_ENTRY *ent;\n ss = s;\n s = p + 1;\n len = (int)(p - ss);\n if (len == 0)\n continue;\n for (j = 0; j < sk_BY_DIR_ENTRY_num(ctx->dirs); j++) {\n ent = sk_BY_DIR_ENTRY_value(ctx->dirs, j);\n if (strlen(ent->dir) == (size_t)len &&\n strncmp(ent->dir, ss, (unsigned int)len) == 0)\n break;\n }\n if (j < sk_BY_DIR_ENTRY_num(ctx->dirs))\n continue;\n if (ctx->dirs == NULL) {\n ctx->dirs = sk_BY_DIR_ENTRY_new_null();\n if (!ctx->dirs) {\n X509err(X509_F_ADD_CERT_DIR, ERR_R_MALLOC_FAILURE);\n return 0;\n }\n }\n ent = OPENSSL_malloc(sizeof(*ent));\n if (ent == NULL)\n return 0;\n ent->dir_type = type;\n ent->hashes = sk_BY_DIR_HASH_new(by_dir_hash_cmp);\n ent->dir = OPENSSL_malloc((unsigned int)len + 1);\n if (ent->dir == NULL || ent->hashes == NULL) {\n by_dir_entry_free(ent);\n return 0;\n }\n strncpy(ent->dir, ss, (unsigned int)len);\n ent->dir[len] = '\\0';\n if (!sk_BY_DIR_ENTRY_push(ctx->dirs, ent)) {\n by_dir_entry_free(ent);\n return 0;\n }\n }\n } while (*p++ != '\\0');\n return 1;\n}", 'int sk_num(const _STACK *st)\n{\n if (st == NULL)\n return -1;\n return st->num;\n}', '_STACK *sk_new_null(void)\n{\n return sk_new((int (*)(const void *, const void *))0);\n}', '_STACK *sk_new(int (*c) (const void *, const void *))\n{\n _STACK *ret;\n if ((ret = OPENSSL_zalloc(sizeof(_STACK))) == NULL)\n goto err;\n if ((ret->data = OPENSSL_zalloc(sizeof(*ret->data) * MIN_NODES)) == NULL)\n goto err;\n ret->comp = c;\n ret->num_alloc = MIN_NODES;\n return (ret);\n err:\n OPENSSL_free(ret);\n return (NULL);\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#ifdef CRYPTO_MDEBUG\n if (call_malloc_debug) {\n CRYPTO_mem_debug_malloc(NULL, num, 0, file, line);\n ret = malloc(num);\n CRYPTO_mem_debug_malloc(ret, num, 1, file, line);\n } else {\n ret = malloc(num);\n }\n#else\n (void)file;\n (void)line;\n ret = malloc(num);\n#endif\n#ifndef OPENSSL_CPUID_OBJ\n if (ret && (num > 2048)) {\n extern unsigned char cleanse_ctr;\n ((unsigned char *)ret)[0] = cleanse_ctr;\n }\n#endif\n return ret;\n}', 'int sk_push(_STACK *st, void *data)\n{\n return (sk_insert(st, data, st->num));\n}', 'int sk_insert(_STACK *st, void *data, int loc)\n{\n char **s;\n if (st == NULL)\n return 0;\n if (st->num_alloc <= st->num + 1) {\n s = OPENSSL_realloc((char *)st->data,\n (unsigned int)sizeof(char *) * st->num_alloc * 2);\n if (s == NULL)\n return (0);\n st->data = s;\n st->num_alloc *= 2;\n }\n if ((loc >= (int)st->num) || (loc < 0))\n st->data[st->num] = data;\n else {\n memmove(&(st->data[loc + 1]),\n &(st->data[loc]), sizeof(char *) * (st->num - loc));\n st->data[loc] = data;\n }\n st->num++;\n st->sorted = 0;\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}'] |
23,167 | 0 | https://github.com/openssl/openssl/blob/5850cc75ea0c1581a9034390f1ca77cadc596238/crypto/bn/bn_ctx.c/#L328 | static unsigned int BN_STACK_pop(BN_STACK *st)
{
return st->indexes[--(st->depth)];
} | ['int test_mod_exp_mont_consttime(BIO *bp, BN_CTX *ctx)\n{\n BIGNUM *a, *b, *c, *d, *e;\n int i;\n a = BN_new();\n b = BN_new();\n c = BN_new();\n d = BN_new();\n e = BN_new();\n BN_one(a);\n BN_one(b);\n BN_zero(c);\n if (BN_mod_exp_mont_consttime(d, a, b, c, ctx, NULL)) {\n fprintf(stderr, "BN_mod_exp_mont_consttime with zero modulus "\n "succeeded\\n");\n return 0;\n }\n BN_set_word(c, 16);\n if (BN_mod_exp_mont_consttime(d, a, b, c, ctx, NULL)) {\n fprintf(stderr, "BN_mod_exp_mont_consttime with even modulus "\n "succeeded\\n");\n return 0;\n }\n BN_bntest_rand(c, 30, 0, 1);\n for (i = 0; i < num2; i++) {\n BN_bntest_rand(a, 20 + i * 5, 0, 0);\n BN_bntest_rand(b, 2 + i, 0, 0);\n if (!BN_mod_exp_mont_consttime(d, a, b, c, ctx, NULL))\n return (00);\n if (bp != NULL) {\n if (!results) {\n BN_print(bp, a);\n BIO_puts(bp, " ^ ");\n BN_print(bp, b);\n BIO_puts(bp, " % ");\n BN_print(bp, c);\n BIO_puts(bp, " - ");\n }\n BN_print(bp, d);\n BIO_puts(bp, "\\n");\n }\n BN_exp(e, a, b, ctx);\n BN_sub(e, e, d);\n BN_div(a, b, e, c, ctx);\n if (!BN_is_zero(b)) {\n fprintf(stderr, "Modulo exponentiation test failed!\\n");\n return 0;\n }\n }\n BN_free(a);\n BN_free(b);\n BN_free(c);\n BN_free(d);\n BN_free(e);\n return (1);\n}', 'int BN_mod_exp_mont_consttime(BIGNUM *rr, const BIGNUM *a, const BIGNUM *p,\n const BIGNUM *m, BN_CTX *ctx,\n BN_MONT_CTX *in_mont)\n{\n int i, bits, ret = 0, window, wvalue;\n int top;\n BN_MONT_CTX *mont = NULL;\n int numPowers;\n unsigned char *powerbufFree = NULL;\n int powerbufLen = 0;\n unsigned char *powerbuf = NULL;\n BIGNUM tmp, am;\n#if defined(SPARC_T4_MONT)\n unsigned int t4 = 0;\n#endif\n bn_check_top(a);\n bn_check_top(p);\n bn_check_top(m);\n if (!BN_is_odd(m)) {\n BNerr(BN_F_BN_MOD_EXP_MONT_CONSTTIME, BN_R_CALLED_WITH_EVEN_MODULUS);\n return (0);\n }\n top = m->top;\n bits = BN_num_bits(p);\n if (bits == 0) {\n ret = BN_one(rr);\n return ret;\n }\n BN_CTX_start(ctx);\n if (in_mont != NULL)\n mont = in_mont;\n else {\n if ((mont = BN_MONT_CTX_new()) == NULL)\n goto err;\n if (!BN_MONT_CTX_set(mont, m, ctx))\n goto err;\n }\n#ifdef RSAZ_ENABLED\n if ((16 == a->top) && (16 == p->top) && (BN_num_bits(m) == 1024)\n && rsaz_avx2_eligible()) {\n if (NULL == bn_wexpand(rr, 16))\n goto err;\n RSAZ_1024_mod_exp_avx2(rr->d, a->d, p->d, m->d, mont->RR.d,\n mont->n0[0]);\n rr->top = 16;\n rr->neg = 0;\n bn_correct_top(rr);\n ret = 1;\n goto err;\n } else if ((8 == a->top) && (8 == p->top) && (BN_num_bits(m) == 512)) {\n if (NULL == bn_wexpand(rr, 8))\n goto err;\n RSAZ_512_mod_exp(rr->d, a->d, p->d, m->d, mont->n0[0], mont->RR.d);\n rr->top = 8;\n rr->neg = 0;\n bn_correct_top(rr);\n ret = 1;\n goto err;\n }\n#endif\n window = BN_window_bits_for_ctime_exponent_size(bits);\n#if defined(SPARC_T4_MONT)\n if (window >= 5 && (top & 15) == 0 && top <= 64 &&\n (OPENSSL_sparcv9cap_P[1] & (CFR_MONTMUL | CFR_MONTSQR)) ==\n (CFR_MONTMUL | CFR_MONTSQR) && (t4 = OPENSSL_sparcv9cap_P[0]))\n window = 5;\n else\n#endif\n#if defined(OPENSSL_BN_ASM_MONT5)\n if (window >= 5) {\n window = 5;\n if ((top & 7) == 0)\n powerbufLen += 2 * top * sizeof(m->d[0]);\n }\n#endif\n (void)0;\n numPowers = 1 << window;\n powerbufLen += sizeof(m->d[0]) * (top * numPowers +\n ((2 * top) >\n numPowers ? (2 * top) : numPowers));\n#ifdef alloca\n if (powerbufLen < 3072)\n powerbufFree =\n alloca(powerbufLen + MOD_EXP_CTIME_MIN_CACHE_LINE_WIDTH);\n else\n#endif\n if ((powerbufFree =\n OPENSSL_malloc(powerbufLen + MOD_EXP_CTIME_MIN_CACHE_LINE_WIDTH))\n == NULL)\n goto err;\n powerbuf = MOD_EXP_CTIME_ALIGN(powerbufFree);\n memset(powerbuf, 0, powerbufLen);\n#ifdef alloca\n if (powerbufLen < 3072)\n powerbufFree = NULL;\n#endif\n tmp.d = (BN_ULONG *)(powerbuf + sizeof(m->d[0]) * top * numPowers);\n am.d = tmp.d + top;\n tmp.top = am.top = 0;\n tmp.dmax = am.dmax = top;\n tmp.neg = am.neg = 0;\n tmp.flags = am.flags = BN_FLG_STATIC_DATA;\n#if 1\n if (m->d[top - 1] & (((BN_ULONG)1) << (BN_BITS2 - 1))) {\n tmp.d[0] = (0 - m->d[0]) & BN_MASK2;\n for (i = 1; i < top; i++)\n tmp.d[i] = (~m->d[i]) & BN_MASK2;\n tmp.top = top;\n } else\n#endif\n if (!BN_to_montgomery(&tmp, BN_value_one(), mont, ctx))\n goto err;\n if (a->neg || BN_ucmp(a, m) >= 0) {\n if (!BN_mod(&am, a, m, ctx))\n goto err;\n if (!BN_to_montgomery(&am, &am, mont, ctx))\n goto err;\n } else if (!BN_to_montgomery(&am, a, mont, ctx))\n goto err;\n#if defined(SPARC_T4_MONT)\n if (t4) {\n typedef int (*bn_pwr5_mont_f) (BN_ULONG *tp, const BN_ULONG *np,\n const BN_ULONG *n0, const void *table,\n int power, int bits);\n int bn_pwr5_mont_t4_8(BN_ULONG *tp, const BN_ULONG *np,\n const BN_ULONG *n0, const void *table,\n int power, int bits);\n int bn_pwr5_mont_t4_16(BN_ULONG *tp, const BN_ULONG *np,\n const BN_ULONG *n0, const void *table,\n int power, int bits);\n int bn_pwr5_mont_t4_24(BN_ULONG *tp, const BN_ULONG *np,\n const BN_ULONG *n0, const void *table,\n int power, int bits);\n int bn_pwr5_mont_t4_32(BN_ULONG *tp, const BN_ULONG *np,\n const BN_ULONG *n0, const void *table,\n int power, int bits);\n static const bn_pwr5_mont_f pwr5_funcs[4] = {\n bn_pwr5_mont_t4_8, bn_pwr5_mont_t4_16,\n bn_pwr5_mont_t4_24, bn_pwr5_mont_t4_32\n };\n bn_pwr5_mont_f pwr5_worker = pwr5_funcs[top / 16 - 1];\n typedef int (*bn_mul_mont_f) (BN_ULONG *rp, const BN_ULONG *ap,\n const void *bp, const BN_ULONG *np,\n const BN_ULONG *n0);\n int bn_mul_mont_t4_8(BN_ULONG *rp, const BN_ULONG *ap, const void *bp,\n const BN_ULONG *np, const BN_ULONG *n0);\n int bn_mul_mont_t4_16(BN_ULONG *rp, const BN_ULONG *ap,\n const void *bp, const BN_ULONG *np,\n const BN_ULONG *n0);\n int bn_mul_mont_t4_24(BN_ULONG *rp, const BN_ULONG *ap,\n const void *bp, const BN_ULONG *np,\n const BN_ULONG *n0);\n int bn_mul_mont_t4_32(BN_ULONG *rp, const BN_ULONG *ap,\n const void *bp, const BN_ULONG *np,\n const BN_ULONG *n0);\n static const bn_mul_mont_f mul_funcs[4] = {\n bn_mul_mont_t4_8, bn_mul_mont_t4_16,\n bn_mul_mont_t4_24, bn_mul_mont_t4_32\n };\n bn_mul_mont_f mul_worker = mul_funcs[top / 16 - 1];\n void bn_mul_mont_vis3(BN_ULONG *rp, const BN_ULONG *ap,\n const void *bp, const BN_ULONG *np,\n const BN_ULONG *n0, int num);\n void bn_mul_mont_t4(BN_ULONG *rp, const BN_ULONG *ap,\n const void *bp, const BN_ULONG *np,\n const BN_ULONG *n0, int num);\n void bn_mul_mont_gather5_t4(BN_ULONG *rp, const BN_ULONG *ap,\n const void *table, const BN_ULONG *np,\n const BN_ULONG *n0, int num, int power);\n void bn_flip_n_scatter5_t4(const BN_ULONG *inp, size_t num,\n void *table, size_t power);\n void bn_gather5_t4(BN_ULONG *out, size_t num,\n void *table, size_t power);\n void bn_flip_t4(BN_ULONG *dst, BN_ULONG *src, size_t num);\n BN_ULONG *np = mont->N.d, *n0 = mont->n0;\n int stride = 5 * (6 - (top / 16 - 1));\n for (i = am.top; i < top; i++)\n am.d[i] = 0;\n for (i = tmp.top; i < top; i++)\n tmp.d[i] = 0;\n bn_flip_n_scatter5_t4(tmp.d, top, powerbuf, 0);\n bn_flip_n_scatter5_t4(am.d, top, powerbuf, 1);\n if (!(*mul_worker) (tmp.d, am.d, am.d, np, n0) &&\n !(*mul_worker) (tmp.d, am.d, am.d, np, n0))\n bn_mul_mont_vis3(tmp.d, am.d, am.d, np, n0, top);\n bn_flip_n_scatter5_t4(tmp.d, top, powerbuf, 2);\n for (i = 3; i < 32; i++) {\n if (!(*mul_worker) (tmp.d, tmp.d, am.d, np, n0) &&\n !(*mul_worker) (tmp.d, tmp.d, am.d, np, n0))\n bn_mul_mont_vis3(tmp.d, tmp.d, am.d, np, n0, top);\n bn_flip_n_scatter5_t4(tmp.d, top, powerbuf, i);\n }\n np = alloca(top * sizeof(BN_ULONG));\n top /= 2;\n bn_flip_t4(np, mont->N.d, top);\n bits--;\n for (wvalue = 0, i = bits % 5; i >= 0; i--, bits--)\n wvalue = (wvalue << 1) + BN_is_bit_set(p, bits);\n bn_gather5_t4(tmp.d, top, powerbuf, wvalue);\n while (bits >= 0) {\n if (bits < stride)\n stride = bits + 1;\n bits -= stride;\n wvalue = bn_get_bits(p, bits + 1);\n if ((*pwr5_worker) (tmp.d, np, n0, powerbuf, wvalue, stride))\n continue;\n if ((*pwr5_worker) (tmp.d, np, n0, powerbuf, wvalue, stride))\n continue;\n bits += stride - 5;\n wvalue >>= stride - 5;\n wvalue &= 31;\n bn_mul_mont_t4(tmp.d, tmp.d, tmp.d, np, n0, top);\n bn_mul_mont_t4(tmp.d, tmp.d, tmp.d, np, n0, top);\n bn_mul_mont_t4(tmp.d, tmp.d, tmp.d, np, n0, top);\n bn_mul_mont_t4(tmp.d, tmp.d, tmp.d, np, n0, top);\n bn_mul_mont_t4(tmp.d, tmp.d, tmp.d, np, n0, top);\n bn_mul_mont_gather5_t4(tmp.d, tmp.d, powerbuf, np, n0, top,\n wvalue);\n }\n bn_flip_t4(tmp.d, tmp.d, top);\n top *= 2;\n tmp.top = top;\n bn_correct_top(&tmp);\n OPENSSL_cleanse(np, top * sizeof(BN_ULONG));\n } else\n#endif\n#if defined(OPENSSL_BN_ASM_MONT5)\n if (window == 5 && top > 1) {\n void bn_mul_mont_gather5(BN_ULONG *rp, const BN_ULONG *ap,\n const void *table, const BN_ULONG *np,\n const BN_ULONG *n0, int num, int power);\n void bn_scatter5(const BN_ULONG *inp, size_t num,\n void *table, size_t power);\n void bn_gather5(BN_ULONG *out, size_t num, void *table, size_t power);\n void bn_power5(BN_ULONG *rp, const BN_ULONG *ap,\n const void *table, const BN_ULONG *np,\n const BN_ULONG *n0, int num, int power);\n int bn_get_bits5(const BN_ULONG *ap, int off);\n int bn_from_montgomery(BN_ULONG *rp, const BN_ULONG *ap,\n const BN_ULONG *not_used, const BN_ULONG *np,\n const BN_ULONG *n0, int num);\n BN_ULONG *np = mont->N.d, *n0 = mont->n0, *np2;\n for (i = am.top; i < top; i++)\n am.d[i] = 0;\n for (i = tmp.top; i < top; i++)\n tmp.d[i] = 0;\n if (top & 7)\n np2 = np;\n else\n for (np2 = am.d + top, i = 0; i < top; i++)\n np2[2 * i] = np[i];\n bn_scatter5(tmp.d, top, powerbuf, 0);\n bn_scatter5(am.d, am.top, powerbuf, 1);\n bn_mul_mont(tmp.d, am.d, am.d, np, n0, top);\n bn_scatter5(tmp.d, top, powerbuf, 2);\n# if 0\n for (i = 3; i < 32; i++) {\n bn_mul_mont_gather5(tmp.d, am.d, powerbuf, np2, n0, top, i - 1);\n bn_scatter5(tmp.d, top, powerbuf, i);\n }\n# else\n for (i = 4; i < 32; i *= 2) {\n bn_mul_mont(tmp.d, tmp.d, tmp.d, np, n0, top);\n bn_scatter5(tmp.d, top, powerbuf, i);\n }\n for (i = 3; i < 8; i += 2) {\n int j;\n bn_mul_mont_gather5(tmp.d, am.d, powerbuf, np2, n0, top, i - 1);\n bn_scatter5(tmp.d, top, powerbuf, i);\n for (j = 2 * i; j < 32; j *= 2) {\n bn_mul_mont(tmp.d, tmp.d, tmp.d, np, n0, top);\n bn_scatter5(tmp.d, top, powerbuf, j);\n }\n }\n for (; i < 16; i += 2) {\n bn_mul_mont_gather5(tmp.d, am.d, powerbuf, np2, n0, top, i - 1);\n bn_scatter5(tmp.d, top, powerbuf, i);\n bn_mul_mont(tmp.d, tmp.d, tmp.d, np, n0, top);\n bn_scatter5(tmp.d, top, powerbuf, 2 * i);\n }\n for (; i < 32; i += 2) {\n bn_mul_mont_gather5(tmp.d, am.d, powerbuf, np2, n0, top, i - 1);\n bn_scatter5(tmp.d, top, powerbuf, i);\n }\n# endif\n bits--;\n for (wvalue = 0, i = bits % 5; i >= 0; i--, bits--)\n wvalue = (wvalue << 1) + BN_is_bit_set(p, bits);\n bn_gather5(tmp.d, top, powerbuf, wvalue);\n if (top & 7)\n while (bits >= 0) {\n for (wvalue = 0, i = 0; i < 5; i++, bits--)\n wvalue = (wvalue << 1) + BN_is_bit_set(p, bits);\n bn_mul_mont(tmp.d, tmp.d, tmp.d, np, n0, top);\n bn_mul_mont(tmp.d, tmp.d, tmp.d, np, n0, top);\n bn_mul_mont(tmp.d, tmp.d, tmp.d, np, n0, top);\n bn_mul_mont(tmp.d, tmp.d, tmp.d, np, n0, top);\n bn_mul_mont(tmp.d, tmp.d, tmp.d, np, n0, top);\n bn_mul_mont_gather5(tmp.d, tmp.d, powerbuf, np, n0, top,\n wvalue);\n } else {\n while (bits >= 0) {\n wvalue = bn_get_bits5(p->d, bits - 4);\n bits -= 5;\n bn_power5(tmp.d, tmp.d, powerbuf, np2, n0, top, wvalue);\n }\n }\n ret = bn_from_montgomery(tmp.d, tmp.d, NULL, np2, n0, top);\n tmp.top = top;\n bn_correct_top(&tmp);\n if (ret) {\n if (!BN_copy(rr, &tmp))\n ret = 0;\n goto err;\n }\n } else\n#endif\n {\n if (!MOD_EXP_CTIME_COPY_TO_PREBUF(&tmp, top, powerbuf, 0, numPowers))\n goto err;\n if (!MOD_EXP_CTIME_COPY_TO_PREBUF(&am, top, powerbuf, 1, numPowers))\n goto err;\n if (window > 1) {\n if (!BN_mod_mul_montgomery(&tmp, &am, &am, mont, ctx))\n goto err;\n if (!MOD_EXP_CTIME_COPY_TO_PREBUF\n (&tmp, top, powerbuf, 2, numPowers))\n goto err;\n for (i = 3; i < numPowers; i++) {\n if (!BN_mod_mul_montgomery(&tmp, &am, &tmp, mont, ctx))\n goto err;\n if (!MOD_EXP_CTIME_COPY_TO_PREBUF\n (&tmp, top, powerbuf, i, numPowers))\n goto err;\n }\n }\n bits--;\n for (wvalue = 0, i = bits % window; i >= 0; i--, bits--)\n wvalue = (wvalue << 1) + BN_is_bit_set(p, bits);\n if (!MOD_EXP_CTIME_COPY_FROM_PREBUF\n (&tmp, top, powerbuf, wvalue, numPowers))\n goto err;\n while (bits >= 0) {\n wvalue = 0;\n for (i = 0; i < window; i++, bits--) {\n if (!BN_mod_mul_montgomery(&tmp, &tmp, &tmp, mont, ctx))\n goto err;\n wvalue = (wvalue << 1) + BN_is_bit_set(p, bits);\n }\n if (!MOD_EXP_CTIME_COPY_FROM_PREBUF\n (&am, top, powerbuf, wvalue, numPowers))\n goto err;\n if (!BN_mod_mul_montgomery(&tmp, &tmp, &am, mont, ctx))\n goto err;\n }\n }\n#if defined(SPARC_T4_MONT)\n if (OPENSSL_sparcv9cap_P[0] & (SPARCV9_VIS3 | SPARCV9_PREFER_FPU)) {\n am.d[0] = 1;\n for (i = 1; i < top; i++)\n am.d[i] = 0;\n if (!BN_mod_mul_montgomery(rr, &tmp, &am, mont, ctx))\n goto err;\n } else\n#endif\n if (!BN_from_montgomery(rr, &tmp, mont, ctx))\n goto err;\n ret = 1;\n err:\n if (in_mont == NULL)\n BN_MONT_CTX_free(mont);\n if (powerbuf != NULL) {\n OPENSSL_cleanse(powerbuf, powerbufLen);\n OPENSSL_free(powerbufFree);\n }\n BN_CTX_end(ctx);\n return (ret);\n}', '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_MONT_CTX_set(BN_MONT_CTX *mont, const BIGNUM *mod, BN_CTX *ctx)\n{\n int ret = 0;\n BIGNUM *Ri, *R;\n if (BN_is_zero(mod))\n return 0;\n BN_CTX_start(ctx);\n if ((Ri = BN_CTX_get(ctx)) == NULL)\n goto err;\n R = &(mont->RR);\n if (!BN_copy(&(mont->N), mod))\n goto err;\n mont->N.neg = 0;\n#ifdef MONT_WORD\n {\n BIGNUM tmod;\n BN_ULONG buf[2];\n BN_init(&tmod);\n tmod.d = buf;\n tmod.dmax = 2;\n tmod.neg = 0;\n mont->ri = (BN_num_bits(mod) + (BN_BITS2 - 1)) / BN_BITS2 * BN_BITS2;\n# if defined(OPENSSL_BN_ASM_MONT) && (BN_BITS2<=32)\n BN_zero(R);\n if (!(BN_set_bit(R, 2 * BN_BITS2)))\n goto err;\n tmod.top = 0;\n if ((buf[0] = mod->d[0]))\n tmod.top = 1;\n if ((buf[1] = mod->top > 1 ? mod->d[1] : 0))\n tmod.top = 2;\n if ((BN_mod_inverse(Ri, R, &tmod, ctx)) == NULL)\n goto err;\n if (!BN_lshift(Ri, Ri, 2 * BN_BITS2))\n goto err;\n if (!BN_is_zero(Ri)) {\n if (!BN_sub_word(Ri, 1))\n goto err;\n } else {\n if (bn_expand(Ri, (int)sizeof(BN_ULONG) * 2) == NULL)\n goto err;\n Ri->neg = 0;\n Ri->d[0] = BN_MASK2;\n Ri->d[1] = BN_MASK2;\n Ri->top = 2;\n }\n if (!BN_div(Ri, NULL, Ri, &tmod, ctx))\n goto err;\n mont->n0[0] = (Ri->top > 0) ? Ri->d[0] : 0;\n mont->n0[1] = (Ri->top > 1) ? Ri->d[1] : 0;\n# else\n BN_zero(R);\n if (!(BN_set_bit(R, BN_BITS2)))\n goto err;\n buf[0] = mod->d[0];\n buf[1] = 0;\n tmod.top = buf[0] != 0 ? 1 : 0;\n if ((BN_mod_inverse(Ri, R, &tmod, ctx)) == NULL)\n goto err;\n if (!BN_lshift(Ri, Ri, BN_BITS2))\n goto err;\n if (!BN_is_zero(Ri)) {\n if (!BN_sub_word(Ri, 1))\n goto err;\n } else {\n if (!BN_set_word(Ri, BN_MASK2))\n goto err;\n }\n if (!BN_div(Ri, NULL, Ri, &tmod, ctx))\n goto err;\n mont->n0[0] = (Ri->top > 0) ? Ri->d[0] : 0;\n mont->n0[1] = 0;\n# endif\n }\n#else\n {\n mont->ri = BN_num_bits(&mont->N);\n BN_zero(R);\n if (!BN_set_bit(R, mont->ri))\n goto err;\n if ((BN_mod_inverse(Ri, R, &mont->N, ctx)) == NULL)\n goto err;\n if (!BN_lshift(Ri, Ri, mont->ri))\n goto err;\n if (!BN_sub_word(Ri, 1))\n goto err;\n if (!BN_div(&(mont->Ni), NULL, Ri, &mont->N, ctx))\n goto err;\n }\n#endif\n BN_zero(&(mont->RR));\n if (!BN_set_bit(&(mont->RR), mont->ri * 2))\n goto err;\n if (!BN_mod(&(mont->RR), &(mont->RR), &(mont->N), ctx))\n goto err;\n ret = 1;\n err:\n BN_CTX_end(ctx);\n return ret;\n}', 'BIGNUM *BN_mod_inverse(BIGNUM *in,\n const BIGNUM *a, const BIGNUM *n, BN_CTX *ctx)\n{\n BIGNUM *rv;\n int noinv;\n rv = int_bn_mod_inverse(in, a, n, ctx, &noinv);\n if (noinv)\n BNerr(BN_F_BN_MOD_INVERSE, BN_R_NO_INVERSE);\n return rv;\n}', 'BIGNUM *int_bn_mod_inverse(BIGNUM *in,\n const BIGNUM *a, const BIGNUM *n, BN_CTX *ctx,\n int *pnoinv)\n{\n BIGNUM *A, *B, *X, *Y, *M, *D, *T, *R = NULL;\n BIGNUM *ret = NULL;\n int sign;\n if (pnoinv)\n *pnoinv = 0;\n if ((BN_get_flags(a, BN_FLG_CONSTTIME) != 0)\n || (BN_get_flags(n, BN_FLG_CONSTTIME) != 0)) {\n return BN_mod_inverse_no_branch(in, a, n, ctx);\n }\n bn_check_top(a);\n bn_check_top(n);\n BN_CTX_start(ctx);\n A = BN_CTX_get(ctx);\n B = BN_CTX_get(ctx);\n X = BN_CTX_get(ctx);\n D = BN_CTX_get(ctx);\n M = BN_CTX_get(ctx);\n Y = BN_CTX_get(ctx);\n T = BN_CTX_get(ctx);\n if (T == NULL)\n goto err;\n if (in == NULL)\n R = BN_new();\n else\n R = in;\n if (R == NULL)\n goto err;\n BN_one(X);\n BN_zero(Y);\n if (BN_copy(B, a) == NULL)\n goto err;\n if (BN_copy(A, n) == NULL)\n goto err;\n A->neg = 0;\n if (B->neg || (BN_ucmp(B, A) >= 0)) {\n if (!BN_nnmod(B, B, A, ctx))\n goto err;\n }\n sign = -1;\n if (BN_is_odd(n) && (BN_num_bits(n) <= (BN_BITS <= 32 ? 450 : 2048))) {\n int shift;\n while (!BN_is_zero(B)) {\n shift = 0;\n while (!BN_is_bit_set(B, shift)) {\n shift++;\n if (BN_is_odd(X)) {\n if (!BN_uadd(X, X, n))\n goto err;\n }\n if (!BN_rshift1(X, X))\n goto err;\n }\n if (shift > 0) {\n if (!BN_rshift(B, B, shift))\n goto err;\n }\n shift = 0;\n while (!BN_is_bit_set(A, shift)) {\n shift++;\n if (BN_is_odd(Y)) {\n if (!BN_uadd(Y, Y, n))\n goto err;\n }\n if (!BN_rshift1(Y, Y))\n goto err;\n }\n if (shift > 0) {\n if (!BN_rshift(A, A, shift))\n goto err;\n }\n if (BN_ucmp(B, A) >= 0) {\n if (!BN_uadd(X, X, Y))\n goto err;\n if (!BN_usub(B, B, A))\n goto err;\n } else {\n if (!BN_uadd(Y, Y, X))\n goto err;\n if (!BN_usub(A, A, B))\n goto err;\n }\n }\n } else {\n while (!BN_is_zero(B)) {\n BIGNUM *tmp;\n if (BN_num_bits(A) == BN_num_bits(B)) {\n if (!BN_one(D))\n goto err;\n if (!BN_sub(M, A, B))\n goto err;\n } else if (BN_num_bits(A) == BN_num_bits(B) + 1) {\n if (!BN_lshift1(T, B))\n goto err;\n if (BN_ucmp(A, T) < 0) {\n if (!BN_one(D))\n goto err;\n if (!BN_sub(M, A, B))\n goto err;\n } else {\n if (!BN_sub(M, A, T))\n goto err;\n if (!BN_add(D, T, B))\n goto err;\n if (BN_ucmp(A, D) < 0) {\n if (!BN_set_word(D, 2))\n goto err;\n } else {\n if (!BN_set_word(D, 3))\n goto err;\n if (!BN_sub(M, M, B))\n goto err;\n }\n }\n } else {\n if (!BN_div(D, M, A, B, ctx))\n goto err;\n }\n tmp = A;\n A = B;\n B = M;\n if (BN_is_one(D)) {\n if (!BN_add(tmp, X, Y))\n goto err;\n } else {\n if (BN_is_word(D, 2)) {\n if (!BN_lshift1(tmp, X))\n goto err;\n } else if (BN_is_word(D, 4)) {\n if (!BN_lshift(tmp, X, 2))\n goto err;\n } else if (D->top == 1) {\n if (!BN_copy(tmp, X))\n goto err;\n if (!BN_mul_word(tmp, D->d[0]))\n goto err;\n } else {\n if (!BN_mul(tmp, D, X, ctx))\n goto err;\n }\n if (!BN_add(tmp, tmp, Y))\n goto err;\n }\n M = Y;\n Y = X;\n X = tmp;\n sign = -sign;\n }\n }\n if (sign < 0) {\n if (!BN_sub(Y, n, Y))\n goto err;\n }\n if (BN_is_one(A)) {\n if (!Y->neg && BN_ucmp(Y, n) < 0) {\n if (!BN_copy(R, Y))\n goto err;\n } else {\n if (!BN_nnmod(R, Y, n, ctx))\n goto err;\n }\n } else {\n if (pnoinv)\n *pnoinv = 1;\n goto err;\n }\n ret = R;\n err:\n if ((ret == NULL) && (in == NULL))\n BN_free(R);\n BN_CTX_end(ctx);\n bn_check_top(ret);\n return (ret);\n}', '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 local_A, local_B;\n BIGNUM *pA, *pB;\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 pB = &local_B;\n local_B.flags = 0;\n BN_with_flags(pB, B, BN_FLG_CONSTTIME);\n if (!BN_nnmod(B, pB, A, ctx))\n goto err;\n }\n sign = -1;\n while (!BN_is_zero(B)) {\n BIGNUM *tmp;\n pA = &local_A;\n local_A.flags = 0;\n BN_with_flags(pA, A, BN_FLG_CONSTTIME);\n if (!BN_div(D, M, pA, B, ctx))\n goto err;\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 tmp = BN_CTX_get(ctx);\n snum = BN_CTX_get(ctx);\n sdiv = BN_CTX_get(ctx);\n if (dv == NULL)\n res = BN_CTX_get(ctx);\n else\n res = dv;\n if (sdiv == NULL || res == NULL || tmp == NULL || snum == NULL)\n goto err;\n norm_shift = BN_BITS2 - ((BN_num_bits(divisor)) % BN_BITS2);\n if (!(BN_lshift(sdiv, divisor, norm_shift)))\n goto err;\n sdiv->neg = 0;\n norm_shift += BN_BITS2;\n if (!(BN_lshift(snum, num, norm_shift)))\n goto err;\n snum->neg = 0;\n if (no_branch) {\n if (snum->top <= sdiv->top + 1) {\n if (bn_wexpand(snum, sdiv->top + 2) == NULL)\n goto err;\n for (i = snum->top; i < sdiv->top + 2; i++)\n snum->d[i] = 0;\n snum->top = sdiv->top + 2;\n } else {\n if (bn_wexpand(snum, snum->top + 1) == NULL)\n goto err;\n snum->d[snum->top] = 0;\n snum->top++;\n }\n }\n div_n = sdiv->top;\n num_n = snum->top;\n loop = num_n - div_n;\n wnum.neg = 0;\n wnum.d = &(snum->d[loop]);\n wnum.top = div_n;\n wnum.dmax = snum->dmax - loop;\n d0 = sdiv->d[div_n - 1];\n d1 = (div_n == 1) ? 0 : sdiv->d[div_n - 2];\n wnump = &(snum->d[num_n - 1]);\n res->neg = (num->neg ^ divisor->neg);\n if (!bn_wexpand(res, (loop + 1)))\n goto err;\n res->top = loop - no_branch;\n resp = &(res->d[loop - 1]);\n if (!bn_wexpand(tmp, (div_n + 1)))\n goto err;\n if (!no_branch) {\n if (BN_ucmp(&wnum, sdiv) >= 0) {\n bn_clear_top2max(&wnum);\n bn_sub_words(wnum.d, wnum.d, sdiv->d, div_n);\n *resp = 1;\n } else\n res->top--;\n }\n if (res->top == 0)\n res->neg = 0;\n else\n resp--;\n for (i = 0; i < loop - 1; i++, wnump--, resp--) {\n BN_ULONG q, l0;\n# if defined(BN_DIV3W) && !defined(OPENSSL_NO_ASM)\n BN_ULONG bn_div_3_words(BN_ULONG *, BN_ULONG, BN_ULONG);\n q = bn_div_3_words(wnump, d1, d0);\n# else\n BN_ULONG n0, n1, rem = 0;\n n0 = wnump[0];\n n1 = wnump[-1];\n if (n0 == d0)\n q = BN_MASK2;\n else {\n# ifdef BN_LLONG\n BN_ULLONG t2;\n# if defined(BN_LLONG) && defined(BN_DIV2W) && !defined(bn_div_words)\n q = (BN_ULONG)(((((BN_ULLONG) n0) << BN_BITS2) | n1) / d0);\n# else\n q = bn_div_words(n0, n1, d0);\n# ifdef BN_DEBUG_LEVITTE\n fprintf(stderr, "DEBUG: bn_div_words(0x%08X,0x%08X,0x%08\\\nX) -> 0x%08X\\n", n0, n1, d0, q);\n# endif\n# endif\n# ifndef REMAINDER_IS_ALREADY_CALCULATED\n rem = (n1 - q * d0) & BN_MASK2;\n# endif\n t2 = (BN_ULLONG) d1 *q;\n for (;;) {\n if (t2 <= ((((BN_ULLONG) rem) << BN_BITS2) | wnump[-2]))\n break;\n q--;\n rem += d0;\n if (rem < d0)\n break;\n t2 -= d1;\n }\n# else\n BN_ULONG t2l, t2h;\n q = bn_div_words(n0, n1, d0);\n# ifdef BN_DEBUG_LEVITTE\n fprintf(stderr, "DEBUG: bn_div_words(0x%08X,0x%08X,0x%08\\\nX) -> 0x%08X\\n", n0, n1, d0, q);\n# endif\n# ifndef REMAINDER_IS_ALREADY_CALCULATED\n rem = (n1 - q * d0) & BN_MASK2;\n# endif\n# if defined(BN_UMULT_LOHI)\n BN_UMULT_LOHI(t2l, t2h, d1, q);\n# elif defined(BN_UMULT_HIGH)\n t2l = d1 * q;\n t2h = BN_UMULT_HIGH(d1, q);\n# else\n {\n BN_ULONG ql, qh;\n t2l = LBITS(d1);\n t2h = HBITS(d1);\n ql = LBITS(q);\n qh = HBITS(q);\n mul64(t2l, t2h, ql, qh);\n }\n# endif\n for (;;) {\n if ((t2h < rem) || ((t2h == rem) && (t2l <= wnump[-2])))\n break;\n q--;\n rem += d0;\n if (rem < d0)\n break;\n if (t2l < d1)\n t2h--;\n t2l -= d1;\n }\n# endif\n }\n# endif\n l0 = bn_mul_words(tmp->d, sdiv->d, div_n, q);\n tmp->d[div_n] = l0;\n wnum.d--;\n if (bn_sub_words(wnum.d, wnum.d, tmp->d, div_n + 1)) {\n q--;\n if (bn_add_words(wnum.d, wnum.d, sdiv->d, div_n))\n (*wnump)++;\n }\n *resp = q;\n }\n bn_correct_top(snum);\n if (rm != NULL) {\n int neg = num->neg;\n BN_rshift(rm, snum, norm_shift);\n if (!BN_is_zero(rm))\n rm->neg = neg;\n bn_check_top(rm);\n }\n if (no_branch)\n bn_correct_top(res);\n BN_CTX_end(ctx);\n return (1);\n err:\n bn_check_top(rm);\n BN_CTX_end(ctx);\n return (0);\n}', 'void BN_CTX_end(BN_CTX *ctx)\n{\n CTXDBG_ENTRY("BN_CTX_end", ctx);\n if (ctx->err_stack)\n ctx->err_stack--;\n else {\n unsigned int fp = BN_STACK_pop(&ctx->stack);\n if (fp < ctx->used)\n BN_POOL_release(&ctx->pool, ctx->used - fp);\n ctx->used = fp;\n ctx->too_many = 0;\n }\n CTXDBG_EXIT(ctx);\n}', 'static unsigned int BN_STACK_pop(BN_STACK *st)\n{\n return st->indexes[--(st->depth)];\n}'] |
23,168 | 0 | https://github.com/openssl/openssl/blob/95dc05bc6d0dfe0f3f3681f5e27afbc3f7a35eea/crypto/lhash/lhash.c/#L254 | char *lh_delete(LHASH *lh, char *data)
{
unsigned long hash;
LHASH_NODE *nn,**rn;
char *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;
Free((char *)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_read_bytes(SSL *s, int type, char *buf, int len)\n\t{\n\tint al,i,j,n,ret;\n\tSSL3_RECORD *rr;\n\tvoid (*cb)()=NULL;\n\tBIO *bio;\n\tif (s->s3->rbuf.buf == NULL)\n\t\tif (!ssl3_setup_buffers(s))\n\t\t\treturn(-1);\n\tif (!s->in_handshake && SSL_in_init(s))\n\t\t{\n\t\ti=s->handshake_func(s);\n\t\tif (i < 0) return(i);\n\t\tif (i == 0)\n\t\t\t{\n\t\t\tSSLerr(SSL_F_SSL3_READ_BYTES,SSL_R_SSL_HANDSHAKE_FAILURE);\n\t\t\treturn(-1);\n\t\t\t}\n\t\t}\nstart:\n\ts->rwstate=SSL_NOTHING;\n\trr= &(s->s3->rrec);\n\tif ((rr->length == 0) || (s->rstate == SSL_ST_READ_BODY))\n\t\t{\n\t\tret=ssl3_get_record(s);\n\t\tif (ret <= 0) return(ret);\n\t\t}\n\tif (s->s3->change_cipher_spec && (rr->type != SSL3_RT_HANDSHAKE))\n\t\t{\n\t\tal=SSL_AD_UNEXPECTED_MESSAGE;\n\t\tSSLerr(SSL_F_SSL3_READ_BYTES,SSL_R_DATA_BETWEEN_CCS_AND_FINISHED);\n\t\tgoto err;\n\t\t}\n\tif (s->shutdown & SSL_RECEIVED_SHUTDOWN)\n\t\t{\n\t\trr->length=0;\n\t\ts->rwstate=SSL_NOTHING;\n\t\treturn(0);\n\t\t}\n\tif ((rr->type == SSL3_RT_HANDSHAKE) && (rr->length == 4) &&\n\t\t(rr->data[0] == SSL3_MT_CLIENT_REQUEST) &&\n\t\t(s->session != NULL) && (s->session->cipher != NULL))\n\t\t{\n\t\tif ((rr->data[1] != 0) || (rr->data[2] != 0) ||\n\t\t\t(rr->data[3] != 0))\n\t\t\t{\n\t\t\tal=SSL_AD_DECODE_ERROR;\n\t\t\tSSLerr(SSL_F_SSL3_READ_BYTES,SSL_R_BAD_CLIENT_REQUEST);\n\t\t\tgoto err;\n\t\t\t}\n\t\tif (SSL_is_init_finished(s) &&\n\t\t\t!(s->s3->flags & SSL3_FLAGS_NO_RENEGOTIATE_CIPHERS) &&\n\t\t\t!s->s3->renegotiate)\n\t\t\t{\n\t\t\tssl3_renegotiate(s);\n\t\t\tif (ssl3_renegotiate_check(s))\n\t\t\t\t{\n\t\t\t\tn=s->handshake_func(s);\n\t\t\t\tif (n < 0) return(n);\n\t\t\t\tif (n == 0)\n\t\t\t\t\t{\n\t\t\t\t\tSSLerr(SSL_F_SSL3_READ_BYTES,SSL_R_SSL_HANDSHAKE_FAILURE);\n\t\t\t\t\treturn(-1);\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\trr->length=0;\n \tgoto start;\n\t\t}\n\tif ((rr->type != type) || (s->shutdown & SSL_SENT_SHUTDOWN))\n\t\t{\n\t\tif (rr->type == SSL3_RT_ALERT)\n\t\t\t{\n\t\t\tif ((rr->length != 2) || (rr->off != 0))\n\t\t\t\t{\n\t\t\t\tal=SSL_AD_DECODE_ERROR;\n\t\t\t\tSSLerr(SSL_F_SSL3_READ_BYTES,SSL_R_BAD_ALERT_RECORD);\n\t\t\t\tgoto f_err;\n\t\t\t\t}\n\t\t\ti=rr->data[0];\n\t\t\tn=rr->data[1];\n\t\t\trr->length=0;\n\t\t\tif (s->info_callback != NULL)\n\t\t\t\tcb=s->info_callback;\n\t\t\telse if (s->ctx->info_callback != NULL)\n\t\t\t\tcb=s->ctx->info_callback;\n\t\t\tif (cb != NULL)\n\t\t\t\t{\n\t\t\t\tj=(i<<8)|n;\n\t\t\t\tcb(s,SSL_CB_READ_ALERT,j);\n\t\t\t\t}\n\t\t\tif (i == 1)\n\t\t\t\t{\n\t\t\t\ts->s3->warn_alert=n;\n\t\t\t\tif (n == SSL_AD_CLOSE_NOTIFY)\n\t\t\t\t\t{\n\t\t\t\t\ts->shutdown|=SSL_RECEIVED_SHUTDOWN;\n\t\t\t\t\treturn(0);\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\telse if (i == 2)\n\t\t\t\t{\n\t\t\t\tchar tmp[16];\n\t\t\t\ts->rwstate=SSL_NOTHING;\n\t\t\t\ts->s3->fatal_alert=n;\n\t\t\t\tSSLerr(SSL_F_SSL3_READ_BYTES,\n\t\t\t\t\tSSL_AD_REASON_OFFSET+n);\n\t\t\t\tsprintf(tmp,"%d",n);\n\t\t\t\tERR_add_error_data(2,"SSL alert number ",tmp);\n\t\t\t\ts->shutdown|=SSL_RECEIVED_SHUTDOWN;\n\t\t\t\tSSL_CTX_remove_session(s->ctx,s->session);\n\t\t\t\treturn(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_READ_BYTES,SSL_R_UNKNOWN_ALERT_TYPE);\n\t\t\t\tgoto f_err;\n\t\t\t\t}\n\t\t\trr->length=0;\n\t\t\tgoto start;\n\t\t\t}\n\t\tif (s->shutdown & SSL_SENT_SHUTDOWN)\n\t\t\t{\n\t\t\ts->rwstate=SSL_NOTHING;\n\t\t\trr->length=0;\n\t\t\treturn(0);\n\t\t\t}\n\t\tif (rr->type == SSL3_RT_CHANGE_CIPHER_SPEC)\n\t\t\t{\n\t\t\tif (\t(rr->length != 1) || (rr->off != 0) ||\n\t\t\t\t(rr->data[0] != SSL3_MT_CCS))\n\t\t\t\t{\n\t\t\t\ti=SSL_AD_ILLEGAL_PARAMETER;\n\t\t\t\tSSLerr(SSL_F_SSL3_READ_BYTES,SSL_R_BAD_CHANGE_CIPHER_SPEC);\n\t\t\t\tgoto err;\n\t\t\t\t}\n\t\t\trr->length=0;\n\t\t\ts->s3->change_cipher_spec=1;\n\t\t\tif (!do_change_cipher_spec(s))\n\t\t\t\tgoto err;\n\t\t\telse\n\t\t\t\tgoto start;\n\t\t\t}\n\t\tif ((rr->type == SSL3_RT_HANDSHAKE) &&\n\t\t\t!s->in_handshake)\n\t\t\t{\n\t\t\tif (((s->state&SSL_ST_MASK) == SSL_ST_OK) &&\n\t\t\t\t!(s->s3->flags & SSL3_FLAGS_NO_RENEGOTIATE_CIPHERS))\n\t\t\t\t{\n\t\t\t\ts->state=SSL_ST_BEFORE|(s->server)\n\t\t\t\t\t\t?SSL_ST_ACCEPT\n\t\t\t\t\t\t:SSL_ST_CONNECT;\n\t\t\t\ts->new_session=1;\n\t\t\t\t}\n\t\t\tn=s->handshake_func(s);\n\t\t\tif (n < 0) return(n);\n\t\t\tif (n == 0)\n\t\t\t\t{\n\t\t\t\tSSLerr(SSL_F_SSL3_READ_BYTES,SSL_R_SSL_HANDSHAKE_FAILURE);\n\t\t\t\treturn(-1);\n\t\t\t\t}\n\t\t\ts->rwstate=SSL_READING;\n\t\t\tbio=SSL_get_rbio(s);\n\t\t\tBIO_clear_retry_flags(bio);\n\t\t\tBIO_set_retry_read(bio);\n\t\t\treturn(-1);\n\t\t\t}\n\t\tswitch (rr->type)\n\t\t\t{\n\t\tdefault:\n#ifndef NO_TLS\n\t\t\tif (s->version == TLS1_VERSION)\n\t\t\t\t{\n\t\t\t\tgoto start;\n\t\t\t\t}\n#endif\n\t\tcase SSL3_RT_CHANGE_CIPHER_SPEC:\n\t\tcase SSL3_RT_ALERT:\n\t\tcase SSL3_RT_HANDSHAKE:\n\t\t\tal=SSL_AD_UNEXPECTED_MESSAGE;\n\t\t\tSSLerr(SSL_F_SSL3_READ_BYTES,SSL_R_UNEXPECTED_RECORD);\n\t\t\tgoto f_err;\n\t\tcase SSL3_RT_APPLICATION_DATA:\n\t\t\tif (s->s3->in_read_app_data &&\n\t\t\t\t(s->s3->total_renegotiations != 0) &&\n\t\t\t\t((\n\t\t\t\t (s->state & SSL_ST_CONNECT) &&\n\t\t\t\t (s->state >= SSL3_ST_CW_CLNT_HELLO_A) &&\n\t\t\t\t (s->state <= SSL3_ST_CR_SRVR_HELLO_A)\n\t\t\t\t ) || (\n\t\t\t\t (s->state & SSL_ST_ACCEPT) &&\n\t\t\t\t (s->state <= SSL3_ST_SW_HELLO_REQ_A) &&\n\t\t\t\t (s->state >= SSL3_ST_SR_CLNT_HELLO_A)\n\t\t\t\t )\n\t\t\t\t))\n\t\t\t\t{\n\t\t\t\ts->s3->in_read_app_data=0;\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_READ_BYTES,SSL_R_UNEXPECTED_RECORD);\n\t\t\t\tgoto f_err;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\tif (SSL_in_init(s) && (type == SSL3_RT_APPLICATION_DATA) &&\n\t\t(s->enc_read_ctx == NULL))\n\t\t{\n\t\tal=SSL_AD_UNEXPECTED_MESSAGE;\n\t\tSSLerr(SSL_F_SSL3_READ_BYTES,SSL_R_APP_DATA_IN_HANDSHAKE);\n\t\tgoto f_err;\n\t\t}\n\tif (len <= 0) return(len);\n\tif ((unsigned int)len > rr->length)\n\t\tn=rr->length;\n\telse\n\t\tn=len;\n\tmemcpy(buf,&(rr->data[rr->off]),(unsigned int)n);\n\trr->length-=n;\n\trr->off+=n;\n\tif (rr->length <= 0)\n\t\t{\n\t\ts->rstate=SSL_ST_READ_HEADER;\n\t\trr->off=0;\n\t\t}\n\tif (type == SSL3_RT_HANDSHAKE)\n\t\tssl3_finish_mac(s,buf,n);\n\treturn(n);\nf_err:\n\tssl3_send_alert(s,SSL3_AL_FATAL,al);\nerr:\n\treturn(-1);\n\t}', 'int SSL_CTX_remove_session(SSL_CTX *ctx, SSL_SESSION *c)\n\t{\n\tSSL_SESSION *r;\n\tint ret=0;\n\tif ((c != NULL) && (c->session_id_length != 0))\n\t\t{\n\t\tCRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX);\n\t\tr=(SSL_SESSION *)lh_delete(ctx->sessions,(char *)c);\n\t\tif (r != NULL)\n\t\t\t{\n\t\t\tret=1;\n\t\t\tSSL_SESSION_list_remove(ctx,c);\n\t\t\t}\n\t\tCRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX);\n\t\tif (ret)\n\t\t\t{\n\t\t\tr->not_resumable=1;\n\t\t\tif (ctx->remove_session_cb != NULL)\n\t\t\t\tctx->remove_session_cb(ctx,r);\n\t\t\tSSL_SESSION_free(r);\n\t\t\t}\n\t\t}\n\telse\n\t\tret=0;\n\treturn(ret);\n\t}', 'char *lh_delete(LHASH *lh, char *data)\n\t{\n\tunsigned long hash;\n\tLHASH_NODE *nn,**rn;\n\tchar *ret;\n\tlh->error=0;\n\trn=getrn(lh,data,&hash);\n\tif (*rn == NULL)\n\t\t{\n\t\tlh->num_no_delete++;\n\t\treturn(NULL);\n\t\t}\n\telse\n\t\t{\n\t\tnn= *rn;\n\t\t*rn=nn->next;\n\t\tret=nn->data;\n\t\tFree((char *)nn);\n\t\tlh->num_delete++;\n\t\t}\n\tlh->num_items--;\n\tif ((lh->num_nodes > MIN_NODES) &&\n\t\t(lh->down_load >= (lh->num_items*LH_LOAD_MULT/lh->num_nodes)))\n\t\tcontract(lh);\n\treturn(ret);\n\t}'] |
23,169 | 0 | https://github.com/openssl/openssl/blob/8da94770f0a049497b1a52ee469cca1f4a13b1a7/crypto/bn/bn_ctx.c/#L328 | static unsigned int BN_STACK_pop(BN_STACK *st)
{
return st->indexes[--(st->depth)];
} | ['DSA_SIG *gost2001_do_sign(const unsigned char *dgst, int dlen, EC_KEY *eckey)\n{\n DSA_SIG *newsig = NULL, *ret = NULL;\n BIGNUM *md = hashsum2bn(dgst);\n BIGNUM *order = NULL;\n const EC_GROUP *group;\n const BIGNUM *priv_key;\n BIGNUM *r = NULL, *s = NULL, *X = NULL, *tmp = NULL, *tmp2 = NULL, *k =\n NULL, *e = NULL;\n EC_POINT *C = NULL;\n BN_CTX *ctx = BN_CTX_new();\n if (!ctx || !md) {\n GOSTerr(GOST_F_GOST2001_DO_SIGN, ERR_R_MALLOC_FAILURE);\n goto err;\n }\n BN_CTX_start(ctx);\n OPENSSL_assert(dlen == 32);\n newsig = DSA_SIG_new();\n if (!newsig) {\n GOSTerr(GOST_F_GOST2001_DO_SIGN, ERR_R_MALLOC_FAILURE);\n goto err;\n }\n group = EC_KEY_get0_group(eckey);\n if (!group) {\n GOSTerr(GOST_F_GOST2001_DO_SIGN, ERR_R_INTERNAL_ERROR);\n goto err;\n }\n order = BN_CTX_get(ctx);\n if (!order || !EC_GROUP_get_order(group, order, ctx)) {\n GOSTerr(GOST_F_GOST2001_DO_SIGN, ERR_R_INTERNAL_ERROR);\n goto err;\n }\n priv_key = EC_KEY_get0_private_key(eckey);\n if (!priv_key) {\n GOSTerr(GOST_F_GOST2001_DO_SIGN, ERR_R_INTERNAL_ERROR);\n goto err;\n }\n e = BN_CTX_get(ctx);\n if (!e || !BN_mod(e, md, order, ctx)) {\n GOSTerr(GOST_F_GOST2001_DO_SIGN, ERR_R_INTERNAL_ERROR);\n goto err;\n }\n#ifdef DEBUG_SIGN\n fprintf(stderr, "digest as bignum=");\n BN_print_fp(stderr, md);\n fprintf(stderr, "\\ndigest mod q=");\n BN_print_fp(stderr, e);\n fprintf(stderr, "\\n");\n#endif\n if (BN_is_zero(e)) {\n BN_one(e);\n }\n k = BN_CTX_get(ctx);\n C = EC_POINT_new(group);\n if (!k || !C) {\n GOSTerr(GOST_F_GOST2001_DO_SIGN, ERR_R_MALLOC_FAILURE);\n goto err;\n }\n do {\n do {\n if (!BN_rand_range(k, order)) {\n GOSTerr(GOST_F_GOST2001_DO_SIGN,\n GOST_R_RANDOM_NUMBER_GENERATOR_FAILED);\n goto err;\n }\n if (!EC_POINT_mul(group, C, k, NULL, NULL, ctx)) {\n GOSTerr(GOST_F_GOST2001_DO_SIGN, ERR_R_EC_LIB);\n goto err;\n }\n if (!X)\n X = BN_CTX_get(ctx);\n if (!r)\n r = BN_CTX_get(ctx);\n if (!X || !r) {\n GOSTerr(GOST_F_GOST2001_DO_SIGN, ERR_R_MALLOC_FAILURE);\n goto err;\n }\n if (!EC_POINT_get_affine_coordinates_GFp(group, C, X, NULL, ctx)) {\n GOSTerr(GOST_F_GOST2001_DO_SIGN, ERR_R_EC_LIB);\n goto err;\n }\n if (!BN_nnmod(r, X, order, ctx)) {\n GOSTerr(GOST_F_GOST2001_DO_SIGN, ERR_R_INTERNAL_ERROR);\n goto err;\n }\n }\n while (BN_is_zero(r));\n if (!tmp)\n tmp = BN_CTX_get(ctx);\n if (!tmp2)\n tmp2 = BN_CTX_get(ctx);\n if (!s)\n s = BN_CTX_get(ctx);\n if (!tmp || !tmp2 || !s) {\n GOSTerr(GOST_F_GOST2001_DO_SIGN, ERR_R_MALLOC_FAILURE);\n goto err;\n }\n if (!BN_mod_mul(tmp, priv_key, r, order, ctx)\n || !BN_mod_mul(tmp2, k, e, order, ctx)\n || !BN_mod_add(s, tmp, tmp2, order, ctx)) {\n GOSTerr(GOST_F_GOST2001_DO_SIGN, ERR_R_INTERNAL_ERROR);\n goto err;\n }\n }\n while (BN_is_zero(s));\n newsig->s = BN_dup(s);\n newsig->r = BN_dup(r);\n if (!newsig->s || !newsig->r) {\n GOSTerr(GOST_F_GOST2001_DO_SIGN, ERR_R_MALLOC_FAILURE);\n goto err;\n }\n ret = newsig;\n err:\n if (ctx)\n BN_CTX_end(ctx);\n BN_CTX_free(ctx);\n EC_POINT_free(C);\n BN_free(md);\n if (!ret)\n DSA_SIG_free(newsig);\n return ret;\n}', 'void BN_CTX_start(BN_CTX *ctx)\n{\n CTXDBG_ENTRY("BN_CTX_start", ctx);\n if (ctx->err_stack || ctx->too_many)\n ctx->err_stack++;\n else if (!BN_STACK_push(&ctx->stack, ctx->used)) {\n BNerr(BN_F_BN_CTX_START, BN_R_TOO_MANY_TEMPORARY_VARIABLES);\n ctx->err_stack++;\n }\n CTXDBG_EXIT(ctx);\n}', 'void BN_CTX_end(BN_CTX *ctx)\n{\n CTXDBG_ENTRY("BN_CTX_end", ctx);\n if (ctx->err_stack)\n ctx->err_stack--;\n else {\n unsigned int fp = BN_STACK_pop(&ctx->stack);\n if (fp < ctx->used)\n BN_POOL_release(&ctx->pool, ctx->used - fp);\n ctx->used = fp;\n ctx->too_many = 0;\n }\n CTXDBG_EXIT(ctx);\n}', 'static unsigned int BN_STACK_pop(BN_STACK *st)\n{\n return st->indexes[--(st->depth)];\n}'] |
23,170 | 0 | https://github.com/libav/libav/blob/a4be782cbde337ced47b04e2e6f79ba99e79ae1d/libavformat/mpegtsenc.c/#L775 | static void mpegts_write_pes(AVFormatContext *s, AVStream *st,
const uint8_t *payload, int payload_size,
int64_t pts, int64_t dts)
{
MpegTSWriteStream *ts_st = st->priv_data;
MpegTSWrite *ts = s->priv_data;
uint8_t buf[TS_PACKET_SIZE];
uint8_t *q;
int val, is_start, len, header_len, write_pcr, private_code, flags;
int afc_len, stuffing_len;
int64_t pcr = -1;
int64_t delay = av_rescale(s->max_delay, 90000, AV_TIME_BASE);
is_start = 1;
while (payload_size > 0) {
retransmit_si_info(s);
write_pcr = 0;
if (ts_st->pid == ts_st->service->pcr_pid) {
ts_st->service->pcr_packet_count++;
if (ts_st->service->pcr_packet_count >=
ts_st->service->pcr_packet_period) {
ts_st->service->pcr_packet_count = 0;
write_pcr = 1;
}
}
if (dts != AV_NOPTS_VALUE && (dts - (int64_t)ts->cur_pcr) > delay) {
if (write_pcr)
mpegts_insert_pcr_only(s, st);
else
mpegts_insert_null_packet(s);
continue;
}
q = buf;
*q++ = 0x47;
val = (ts_st->pid >> 8);
if (is_start)
val |= 0x40;
*q++ = val;
*q++ = ts_st->pid;
*q++ = 0x10 | ts_st->cc | (write_pcr ? 0x20 : 0);
ts_st->cc = (ts_st->cc + 1) & 0xf;
if (write_pcr) {
pcr = ts->cur_pcr + (4+7)*8*90000LL / ts->mux_rate;
if (dts != AV_NOPTS_VALUE && dts < pcr)
av_log(s, AV_LOG_WARNING, "dts < pcr, TS is invalid\n");
*q++ = 7;
*q++ = 0x10;
*q++ = pcr >> 25;
*q++ = pcr >> 17;
*q++ = pcr >> 9;
*q++ = pcr >> 1;
*q++ = (pcr & 1) << 7;
*q++ = 0;
}
if (is_start) {
int pes_extension = 0;
*q++ = 0x00;
*q++ = 0x00;
*q++ = 0x01;
private_code = 0;
if (st->codec->codec_type == CODEC_TYPE_VIDEO) {
if (st->codec->codec_id == CODEC_ID_DIRAC) {
*q++ = 0xfd;
} else
*q++ = 0xe0;
} else if (st->codec->codec_type == CODEC_TYPE_AUDIO &&
(st->codec->codec_id == CODEC_ID_MP2 ||
st->codec->codec_id == CODEC_ID_MP3)) {
*q++ = 0xc0;
} else {
*q++ = 0xbd;
if (st->codec->codec_type == CODEC_TYPE_SUBTITLE) {
private_code = 0x20;
}
}
header_len = 0;
flags = 0;
if (pts != AV_NOPTS_VALUE) {
header_len += 5;
flags |= 0x80;
}
if (dts != AV_NOPTS_VALUE && pts != AV_NOPTS_VALUE && dts != pts) {
header_len += 5;
flags |= 0x40;
}
if (st->codec->codec_type == CODEC_TYPE_VIDEO &&
st->codec->codec_id == CODEC_ID_DIRAC) {
pes_extension = 1;
flags |= 0x01;
header_len += 3;
}
len = payload_size + header_len + 3;
if (private_code != 0)
len++;
if (len > 0xffff)
len = 0;
*q++ = len >> 8;
*q++ = len;
val = 0x80;
if (st->codec->codec_type == CODEC_TYPE_SUBTITLE)
val |= 0x04;
*q++ = val;
*q++ = flags;
*q++ = header_len;
if (pts != AV_NOPTS_VALUE) {
write_pts(q, flags >> 6, pts);
q += 5;
}
if (dts != AV_NOPTS_VALUE && pts != AV_NOPTS_VALUE && dts != pts) {
write_pts(q, 1, dts);
q += 5;
}
if (pes_extension && st->codec->codec_id == CODEC_ID_DIRAC) {
flags = 0x01;
*q++ = flags;
*q++ = 0x80 | 0x01;
*q++ = 0x00 | 0x60;
}
if (private_code != 0)
*q++ = private_code;
is_start = 0;
}
header_len = q - buf;
len = TS_PACKET_SIZE - header_len;
if (len > payload_size)
len = payload_size;
stuffing_len = TS_PACKET_SIZE - header_len - len;
if (stuffing_len > 0) {
if (buf[3] & 0x20) {
afc_len = buf[4] + 1;
memmove(buf + 4 + afc_len + stuffing_len,
buf + 4 + afc_len,
header_len - (4 + afc_len));
buf[4] += stuffing_len;
memset(buf + 4 + afc_len, 0xff, stuffing_len);
} else {
memmove(buf + 4 + stuffing_len, buf + 4, header_len - 4);
buf[3] |= 0x20;
buf[4] = stuffing_len - 1;
if (stuffing_len >= 2) {
buf[5] = 0x00;
memset(buf + 6, 0xff, stuffing_len - 2);
}
}
}
memcpy(buf + TS_PACKET_SIZE - len, payload, len);
payload += len;
payload_size -= len;
put_buffer(s->pb, buf, TS_PACKET_SIZE);
ts->cur_pcr += TS_PACKET_SIZE*8*90000LL/ts->mux_rate;
}
put_flush_packet(s->pb);
} | ['static int mpegts_write_end(AVFormatContext *s)\n{\n MpegTSWrite *ts = s->priv_data;\n MpegTSWriteStream *ts_st;\n MpegTSService *service;\n AVStream *st;\n int i;\n for(i = 0; i < s->nb_streams; i++) {\n st = s->streams[i];\n ts_st = st->priv_data;\n if (ts_st->payload_index > 0) {\n mpegts_write_pes(s, st, ts_st->payload, ts_st->payload_index,\n ts_st->payload_pts, ts_st->payload_dts);\n }\n }\n put_flush_packet(s->pb);\n for(i = 0; i < ts->nb_services; i++) {\n service = ts->services[i];\n av_freep(&service->provider_name);\n av_freep(&service->name);\n av_free(service);\n }\n av_free(ts->services);\n return 0;\n}', 'static void mpegts_write_pes(AVFormatContext *s, AVStream *st,\n const uint8_t *payload, int payload_size,\n int64_t pts, int64_t dts)\n{\n MpegTSWriteStream *ts_st = st->priv_data;\n MpegTSWrite *ts = s->priv_data;\n uint8_t buf[TS_PACKET_SIZE];\n uint8_t *q;\n int val, is_start, len, header_len, write_pcr, private_code, flags;\n int afc_len, stuffing_len;\n int64_t pcr = -1;\n int64_t delay = av_rescale(s->max_delay, 90000, AV_TIME_BASE);\n is_start = 1;\n while (payload_size > 0) {\n retransmit_si_info(s);\n write_pcr = 0;\n if (ts_st->pid == ts_st->service->pcr_pid) {\n ts_st->service->pcr_packet_count++;\n if (ts_st->service->pcr_packet_count >=\n ts_st->service->pcr_packet_period) {\n ts_st->service->pcr_packet_count = 0;\n write_pcr = 1;\n }\n }\n if (dts != AV_NOPTS_VALUE && (dts - (int64_t)ts->cur_pcr) > delay) {\n if (write_pcr)\n mpegts_insert_pcr_only(s, st);\n else\n mpegts_insert_null_packet(s);\n continue;\n }\n q = buf;\n *q++ = 0x47;\n val = (ts_st->pid >> 8);\n if (is_start)\n val |= 0x40;\n *q++ = val;\n *q++ = ts_st->pid;\n *q++ = 0x10 | ts_st->cc | (write_pcr ? 0x20 : 0);\n ts_st->cc = (ts_st->cc + 1) & 0xf;\n if (write_pcr) {\n pcr = ts->cur_pcr + (4+7)*8*90000LL / ts->mux_rate;\n if (dts != AV_NOPTS_VALUE && dts < pcr)\n av_log(s, AV_LOG_WARNING, "dts < pcr, TS is invalid\\n");\n *q++ = 7;\n *q++ = 0x10;\n *q++ = pcr >> 25;\n *q++ = pcr >> 17;\n *q++ = pcr >> 9;\n *q++ = pcr >> 1;\n *q++ = (pcr & 1) << 7;\n *q++ = 0;\n }\n if (is_start) {\n int pes_extension = 0;\n *q++ = 0x00;\n *q++ = 0x00;\n *q++ = 0x01;\n private_code = 0;\n if (st->codec->codec_type == CODEC_TYPE_VIDEO) {\n if (st->codec->codec_id == CODEC_ID_DIRAC) {\n *q++ = 0xfd;\n } else\n *q++ = 0xe0;\n } else if (st->codec->codec_type == CODEC_TYPE_AUDIO &&\n (st->codec->codec_id == CODEC_ID_MP2 ||\n st->codec->codec_id == CODEC_ID_MP3)) {\n *q++ = 0xc0;\n } else {\n *q++ = 0xbd;\n if (st->codec->codec_type == CODEC_TYPE_SUBTITLE) {\n private_code = 0x20;\n }\n }\n header_len = 0;\n flags = 0;\n if (pts != AV_NOPTS_VALUE) {\n header_len += 5;\n flags |= 0x80;\n }\n if (dts != AV_NOPTS_VALUE && pts != AV_NOPTS_VALUE && dts != pts) {\n header_len += 5;\n flags |= 0x40;\n }\n if (st->codec->codec_type == CODEC_TYPE_VIDEO &&\n st->codec->codec_id == CODEC_ID_DIRAC) {\n pes_extension = 1;\n flags |= 0x01;\n header_len += 3;\n }\n len = payload_size + header_len + 3;\n if (private_code != 0)\n len++;\n if (len > 0xffff)\n len = 0;\n *q++ = len >> 8;\n *q++ = len;\n val = 0x80;\n if (st->codec->codec_type == CODEC_TYPE_SUBTITLE)\n val |= 0x04;\n *q++ = val;\n *q++ = flags;\n *q++ = header_len;\n if (pts != AV_NOPTS_VALUE) {\n write_pts(q, flags >> 6, pts);\n q += 5;\n }\n if (dts != AV_NOPTS_VALUE && pts != AV_NOPTS_VALUE && dts != pts) {\n write_pts(q, 1, dts);\n q += 5;\n }\n if (pes_extension && st->codec->codec_id == CODEC_ID_DIRAC) {\n flags = 0x01;\n *q++ = flags;\n *q++ = 0x80 | 0x01;\n *q++ = 0x00 | 0x60;\n }\n if (private_code != 0)\n *q++ = private_code;\n is_start = 0;\n }\n header_len = q - buf;\n len = TS_PACKET_SIZE - header_len;\n if (len > payload_size)\n len = payload_size;\n stuffing_len = TS_PACKET_SIZE - header_len - len;\n if (stuffing_len > 0) {\n if (buf[3] & 0x20) {\n afc_len = buf[4] + 1;\n memmove(buf + 4 + afc_len + stuffing_len,\n buf + 4 + afc_len,\n header_len - (4 + afc_len));\n buf[4] += stuffing_len;\n memset(buf + 4 + afc_len, 0xff, stuffing_len);\n } else {\n memmove(buf + 4 + stuffing_len, buf + 4, header_len - 4);\n buf[3] |= 0x20;\n buf[4] = stuffing_len - 1;\n if (stuffing_len >= 2) {\n buf[5] = 0x00;\n memset(buf + 6, 0xff, stuffing_len - 2);\n }\n }\n }\n memcpy(buf + TS_PACKET_SIZE - len, payload, len);\n payload += len;\n payload_size -= len;\n put_buffer(s->pb, buf, TS_PACKET_SIZE);\n ts->cur_pcr += TS_PACKET_SIZE*8*90000LL/ts->mux_rate;\n }\n put_flush_packet(s->pb);\n}'] |
23,171 | 0 | https://github.com/openssl/openssl/blob/8de2910b5cbfa6169b54d1267abf654da773f00a/crypto/rsa/rsa_sign.c/#L222 | int RSA_verify(int dtype, const unsigned char *m, unsigned int m_len,
unsigned char *sigbuf, unsigned int siglen, RSA *rsa)
{
int i,ret=0,sigtype;
unsigned char *p,*s;
X509_SIG *sig=NULL;
if (siglen != (unsigned int)RSA_size(rsa))
{
RSAerr(RSA_F_RSA_VERIFY,RSA_R_WRONG_SIGNATURE_LENGTH);
return(0);
}
if(rsa->flags & RSA_FLAG_SIGN_VER)
return ENGINE_get_RSA(rsa->engine)->rsa_verify(dtype,
m, m_len, sigbuf, siglen, rsa);
s=(unsigned char *)OPENSSL_malloc((unsigned int)siglen);
if (s == NULL)
{
RSAerr(RSA_F_RSA_VERIFY,ERR_R_MALLOC_FAILURE);
goto err;
}
if((dtype == NID_md5_sha1) && (m_len != SSL_SIG_LENGTH) ) {
RSAerr(RSA_F_RSA_VERIFY,RSA_R_INVALID_MESSAGE_LENGTH);
return(0);
}
i=RSA_public_decrypt((int)siglen,sigbuf,s,rsa,RSA_PKCS1_PADDING);
if (i <= 0) goto err;
if(dtype == NID_md5_sha1) {
if((i != SSL_SIG_LENGTH) || memcmp(s, m, SSL_SIG_LENGTH))
RSAerr(RSA_F_RSA_VERIFY,RSA_R_BAD_SIGNATURE);
else ret = 1;
} else {
p=s;
sig=d2i_X509_SIG(NULL,&p,(long)i);
if (sig == NULL) goto err;
sigtype=OBJ_obj2nid(sig->algor->algorithm);
#ifdef RSA_DEBUG
fprintf(stderr,"in(%s) expect(%s)\n",OBJ_nid2ln(sigtype),
OBJ_nid2ln(dtype));
#endif
if (sigtype != dtype)
{
if (((dtype == NID_md5) &&
(sigtype == NID_md5WithRSAEncryption)) ||
((dtype == NID_md2) &&
(sigtype == NID_md2WithRSAEncryption)))
{
#if !defined(NO_STDIO) && !defined(WIN16)
fprintf(stderr,"signature has problems, re-make with post SSLeay045\n");
#endif
}
else
{
RSAerr(RSA_F_RSA_VERIFY,
RSA_R_ALGORITHM_MISMATCH);
goto err;
}
}
if ( ((unsigned int)sig->digest->length != m_len) ||
(memcmp(m,sig->digest->data,m_len) != 0))
{
RSAerr(RSA_F_RSA_VERIFY,RSA_R_BAD_SIGNATURE);
}
else
ret=1;
}
err:
if (sig != NULL) X509_SIG_free(sig);
memset(s,0,(unsigned int)siglen);
OPENSSL_free(s);
return(ret);
} | ['int RSA_verify(int dtype, const unsigned char *m, unsigned int m_len,\n\t unsigned char *sigbuf, unsigned int siglen, RSA *rsa)\n\t{\n\tint i,ret=0,sigtype;\n\tunsigned char *p,*s;\n\tX509_SIG *sig=NULL;\n\tif (siglen != (unsigned int)RSA_size(rsa))\n\t\t{\n\t\tRSAerr(RSA_F_RSA_VERIFY,RSA_R_WRONG_SIGNATURE_LENGTH);\n\t\treturn(0);\n\t\t}\n\tif(rsa->flags & RSA_FLAG_SIGN_VER)\n\t return ENGINE_get_RSA(rsa->engine)->rsa_verify(dtype,\n\t\t\tm, m_len, sigbuf, siglen, rsa);\n\ts=(unsigned char *)OPENSSL_malloc((unsigned int)siglen);\n\tif (s == NULL)\n\t\t{\n\t\tRSAerr(RSA_F_RSA_VERIFY,ERR_R_MALLOC_FAILURE);\n\t\tgoto err;\n\t\t}\n\tif((dtype == NID_md5_sha1) && (m_len != SSL_SIG_LENGTH) ) {\n\t\t\tRSAerr(RSA_F_RSA_VERIFY,RSA_R_INVALID_MESSAGE_LENGTH);\n\t\t\treturn(0);\n\t}\n\ti=RSA_public_decrypt((int)siglen,sigbuf,s,rsa,RSA_PKCS1_PADDING);\n\tif (i <= 0) goto err;\n\tif(dtype == NID_md5_sha1) {\n\t\tif((i != SSL_SIG_LENGTH) || memcmp(s, m, SSL_SIG_LENGTH))\n\t\t\t\tRSAerr(RSA_F_RSA_VERIFY,RSA_R_BAD_SIGNATURE);\n\t\telse ret = 1;\n\t} else {\n\t\tp=s;\n\t\tsig=d2i_X509_SIG(NULL,&p,(long)i);\n\t\tif (sig == NULL) goto err;\n\t\tsigtype=OBJ_obj2nid(sig->algor->algorithm);\n\t#ifdef RSA_DEBUG\n\t\tfprintf(stderr,"in(%s) expect(%s)\\n",OBJ_nid2ln(sigtype),\n\t\t\tOBJ_nid2ln(dtype));\n\t#endif\n\t\tif (sigtype != dtype)\n\t\t\t{\n\t\t\tif (((dtype == NID_md5) &&\n\t\t\t\t(sigtype == NID_md5WithRSAEncryption)) ||\n\t\t\t\t((dtype == NID_md2) &&\n\t\t\t\t(sigtype == NID_md2WithRSAEncryption)))\n\t\t\t\t{\n\t#if !defined(NO_STDIO) && !defined(WIN16)\n\t\t\t\tfprintf(stderr,"signature has problems, re-make with post SSLeay045\\n");\n\t#endif\n\t\t\t\t}\n\t\t\telse\n\t\t\t\t{\n\t\t\t\tRSAerr(RSA_F_RSA_VERIFY,\n\t\t\t\t\t\tRSA_R_ALGORITHM_MISMATCH);\n\t\t\t\tgoto err;\n\t\t\t\t}\n\t\t\t}\n\t\tif (\t((unsigned int)sig->digest->length != m_len) ||\n\t\t\t(memcmp(m,sig->digest->data,m_len) != 0))\n\t\t\t{\n\t\t\tRSAerr(RSA_F_RSA_VERIFY,RSA_R_BAD_SIGNATURE);\n\t\t\t}\n\t\telse\n\t\t\tret=1;\n\t}\nerr:\n\tif (sig != NULL) X509_SIG_free(sig);\n\tmemset(s,0,(unsigned int)siglen);\n\tOPENSSL_free(s);\n\treturn(ret);\n\t}', 'int RSA_size(const RSA *r)\n\t{\n\treturn(BN_num_bytes(r->n));\n\t}', 'int BN_num_bits(const BIGNUM *a)\n\t{\n\tBN_ULONG l;\n\tint i;\n\tbn_check_top(a);\n\tif (a->top == 0) return(0);\n\tl=a->d[a->top-1];\n\tassert(l != 0);\n\ti=(a->top-1)*BN_BITS2;\n\treturn(i+BN_num_bits_word(l));\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_func(num);\n#ifdef LEVITTE_DEBUG\n\tfprintf(stderr, "LEVITTE_DEBUG: > 0x%p (%d)\\n", ret, num);\n#endif\n\tif (malloc_debug_func != NULL)\n\t\tmalloc_debug_func(ret, num, file, line, 1);\n\treturn ret;\n\t}', 'void ERR_put_error(int lib, int func, int reason, const char *file,\n\t int line)\n\t{\n\tERR_STATE *es;\n#ifdef _OSD_POSIX\n\tif (strncmp(file,"*POSIX(", sizeof("*POSIX(")-1) == 0) {\n\t\tchar *end;\n\t\tfile += sizeof("*POSIX(")-1;\n\t\tend = &file[strlen(file)-1];\n\t\tif (*end == \')\')\n\t\t\t*end = \'\\0\';\n\t\tif ((end = strrchr(file, \'/\')) != NULL)\n\t\t\tfile = &end[1];\n\t}\n#endif\n\tes=ERR_get_state();\n\tes->top=(es->top+1)%ERR_NUM_ERRORS;\n\tif (es->top == es->bottom)\n\t\tes->bottom=(es->bottom+1)%ERR_NUM_ERRORS;\n\tes->err_buffer[es->top]=ERR_PACK(lib,func,reason);\n\tes->err_file[es->top]=file;\n\tes->err_line[es->top]=line;\n\terr_clear_data(es,es->top);\n\t}', 'void CRYPTO_free(void *str)\n\t{\n\tif (free_debug_func != NULL)\n\t\tfree_debug_func(str, 0);\n#ifdef LEVITTE_DEBUG\n\tfprintf(stderr, "LEVITTE_DEBUG: < 0x%p\\n", str);\n#endif\n\tfree_func(str);\n\tif (free_debug_func != NULL)\n\t\tfree_debug_func(NULL, 1);\n\t}'] |
23,172 | 0 | https://github.com/libav/libav/blob/645d26520a1a1900a89f2811eb78a5d637ca7877/libavcodec/ivi_dsp.c/#L88 | void ff_ivi_recompose53(const IVIPlaneDesc *plane, uint8_t *dst,
const int dst_pitch, const int num_bands)
{
int x, y, indx;
int32_t p0, p1, p2, p3, tmp0, tmp1, tmp2;
int32_t b0_1, b0_2, b1_1, b1_2, b1_3, b2_1, b2_2, b2_3, b2_4, b2_5, b2_6;
int32_t b3_1, b3_2, b3_3, b3_4, b3_5, b3_6, b3_7, b3_8, b3_9;
uint32_t pitch, back_pitch;
const IDWTELEM *b0_ptr, *b1_ptr, *b2_ptr, *b3_ptr;
pitch = plane->bands[0].pitch;
back_pitch = 0;
b0_ptr = plane->bands[0].buf;
b1_ptr = plane->bands[1].buf;
b2_ptr = plane->bands[2].buf;
b3_ptr = plane->bands[3].buf;
for (y = 0; y < plane->height; y += 2) {
if (num_bands > 0) {
b0_1 = b0_ptr[0];
b0_2 = b0_ptr[pitch];
}
if (num_bands > 1) {
b1_1 = b1_ptr[back_pitch];
b1_2 = b1_ptr[0];
b1_3 = b1_1 - b1_2*6 + b1_ptr[pitch];
}
if (num_bands > 2) {
b2_2 = b2_ptr[0];
b2_3 = b2_2;
b2_5 = b2_ptr[pitch];
b2_6 = b2_5;
}
if (num_bands > 3) {
b3_2 = b3_ptr[back_pitch];
b3_3 = b3_2;
b3_5 = b3_ptr[0];
b3_6 = b3_5;
b3_8 = b3_2 - b3_5*6 + b3_ptr[pitch];
b3_9 = b3_8;
}
for (x = 0, indx = 0; x < plane->width; x+=2, indx++) {
b2_1 = b2_2;
b2_2 = b2_3;
b2_4 = b2_5;
b2_5 = b2_6;
b3_1 = b3_2;
b3_2 = b3_3;
b3_4 = b3_5;
b3_5 = b3_6;
b3_7 = b3_8;
b3_8 = b3_9;
p0 = p1 = p2 = p3 = 0;
if (num_bands > 0) {
tmp0 = b0_1;
tmp2 = b0_2;
b0_1 = b0_ptr[indx+1];
b0_2 = b0_ptr[pitch+indx+1];
tmp1 = tmp0 + b0_1;
p0 = tmp0 << 4;
p1 = tmp1 << 3;
p2 = (tmp0 + tmp2) << 3;
p3 = (tmp1 + tmp2 + b0_2) << 2;
}
if (num_bands > 1) {
tmp0 = b1_2;
tmp1 = b1_1;
b1_2 = b1_ptr[indx+1];
b1_1 = b1_ptr[back_pitch+indx+1];
tmp2 = tmp1 - tmp0*6 + b1_3;
b1_3 = b1_1 - b1_2*6 + b1_ptr[pitch+indx+1];
p0 += (tmp0 + tmp1) << 3;
p1 += (tmp0 + tmp1 + b1_1 + b1_2) << 2;
p2 += tmp2 << 2;
p3 += (tmp2 + b1_3) << 1;
}
if (num_bands > 2) {
b2_3 = b2_ptr[indx+1];
b2_6 = b2_ptr[pitch+indx+1];
tmp0 = b2_1 + b2_2;
tmp1 = b2_1 - b2_2*6 + b2_3;
p0 += tmp0 << 3;
p1 += tmp1 << 2;
p2 += (tmp0 + b2_4 + b2_5) << 2;
p3 += (tmp1 + b2_4 - b2_5*6 + b2_6) << 1;
}
if (num_bands > 3) {
b3_6 = b3_ptr[indx+1];
b3_3 = b3_ptr[back_pitch+indx+1];
tmp0 = b3_1 + b3_4;
tmp1 = b3_2 + b3_5;
tmp2 = b3_3 + b3_6;
b3_9 = b3_3 - b3_6*6 + b3_ptr[pitch+indx+1];
p0 += (tmp0 + tmp1) << 2;
p1 += (tmp0 - tmp1*6 + tmp2) << 1;
p2 += (b3_7 + b3_8) << 1;
p3 += b3_7 - b3_8*6 + b3_9;
}
dst[x] = av_clip_uint8((p0 >> 6) + 128);
dst[x+1] = av_clip_uint8((p1 >> 6) + 128);
dst[dst_pitch+x] = av_clip_uint8((p2 >> 6) + 128);
dst[dst_pitch+x+1] = av_clip_uint8((p3 >> 6) + 128);
}
dst += dst_pitch << 1;
back_pitch = -pitch;
b0_ptr += pitch;
b1_ptr += pitch;
b2_ptr += pitch;
b3_ptr += pitch;
}
} | ['void ff_ivi_recompose53(const IVIPlaneDesc *plane, uint8_t *dst,\n const int dst_pitch, const int num_bands)\n{\n int x, y, indx;\n int32_t p0, p1, p2, p3, tmp0, tmp1, tmp2;\n int32_t b0_1, b0_2, b1_1, b1_2, b1_3, b2_1, b2_2, b2_3, b2_4, b2_5, b2_6;\n int32_t b3_1, b3_2, b3_3, b3_4, b3_5, b3_6, b3_7, b3_8, b3_9;\n uint32_t pitch, back_pitch;\n const IDWTELEM *b0_ptr, *b1_ptr, *b2_ptr, *b3_ptr;\n pitch = plane->bands[0].pitch;\n back_pitch = 0;\n b0_ptr = plane->bands[0].buf;\n b1_ptr = plane->bands[1].buf;\n b2_ptr = plane->bands[2].buf;\n b3_ptr = plane->bands[3].buf;\n for (y = 0; y < plane->height; y += 2) {\n if (num_bands > 0) {\n b0_1 = b0_ptr[0];\n b0_2 = b0_ptr[pitch];\n }\n if (num_bands > 1) {\n b1_1 = b1_ptr[back_pitch];\n b1_2 = b1_ptr[0];\n b1_3 = b1_1 - b1_2*6 + b1_ptr[pitch];\n }\n if (num_bands > 2) {\n b2_2 = b2_ptr[0];\n b2_3 = b2_2;\n b2_5 = b2_ptr[pitch];\n b2_6 = b2_5;\n }\n if (num_bands > 3) {\n b3_2 = b3_ptr[back_pitch];\n b3_3 = b3_2;\n b3_5 = b3_ptr[0];\n b3_6 = b3_5;\n b3_8 = b3_2 - b3_5*6 + b3_ptr[pitch];\n b3_9 = b3_8;\n }\n for (x = 0, indx = 0; x < plane->width; x+=2, indx++) {\n b2_1 = b2_2;\n b2_2 = b2_3;\n b2_4 = b2_5;\n b2_5 = b2_6;\n b3_1 = b3_2;\n b3_2 = b3_3;\n b3_4 = b3_5;\n b3_5 = b3_6;\n b3_7 = b3_8;\n b3_8 = b3_9;\n p0 = p1 = p2 = p3 = 0;\n if (num_bands > 0) {\n tmp0 = b0_1;\n tmp2 = b0_2;\n b0_1 = b0_ptr[indx+1];\n b0_2 = b0_ptr[pitch+indx+1];\n tmp1 = tmp0 + b0_1;\n p0 = tmp0 << 4;\n p1 = tmp1 << 3;\n p2 = (tmp0 + tmp2) << 3;\n p3 = (tmp1 + tmp2 + b0_2) << 2;\n }\n if (num_bands > 1) {\n tmp0 = b1_2;\n tmp1 = b1_1;\n b1_2 = b1_ptr[indx+1];\n b1_1 = b1_ptr[back_pitch+indx+1];\n tmp2 = tmp1 - tmp0*6 + b1_3;\n b1_3 = b1_1 - b1_2*6 + b1_ptr[pitch+indx+1];\n p0 += (tmp0 + tmp1) << 3;\n p1 += (tmp0 + tmp1 + b1_1 + b1_2) << 2;\n p2 += tmp2 << 2;\n p3 += (tmp2 + b1_3) << 1;\n }\n if (num_bands > 2) {\n b2_3 = b2_ptr[indx+1];\n b2_6 = b2_ptr[pitch+indx+1];\n tmp0 = b2_1 + b2_2;\n tmp1 = b2_1 - b2_2*6 + b2_3;\n p0 += tmp0 << 3;\n p1 += tmp1 << 2;\n p2 += (tmp0 + b2_4 + b2_5) << 2;\n p3 += (tmp1 + b2_4 - b2_5*6 + b2_6) << 1;\n }\n if (num_bands > 3) {\n b3_6 = b3_ptr[indx+1];\n b3_3 = b3_ptr[back_pitch+indx+1];\n tmp0 = b3_1 + b3_4;\n tmp1 = b3_2 + b3_5;\n tmp2 = b3_3 + b3_6;\n b3_9 = b3_3 - b3_6*6 + b3_ptr[pitch+indx+1];\n p0 += (tmp0 + tmp1) << 2;\n p1 += (tmp0 - tmp1*6 + tmp2) << 1;\n p2 += (b3_7 + b3_8) << 1;\n p3 += b3_7 - b3_8*6 + b3_9;\n }\n dst[x] = av_clip_uint8((p0 >> 6) + 128);\n dst[x+1] = av_clip_uint8((p1 >> 6) + 128);\n dst[dst_pitch+x] = av_clip_uint8((p2 >> 6) + 128);\n dst[dst_pitch+x+1] = av_clip_uint8((p3 >> 6) + 128);\n }\n dst += dst_pitch << 1;\n back_pitch = -pitch;\n b0_ptr += pitch;\n b1_ptr += pitch;\n b2_ptr += pitch;\n b3_ptr += pitch;\n }\n}'] |
23,173 | 0 | https://github.com/nginx/nginx/blob/7e4f193bb0e1cfa4128052f538dd60519cac02e4/src/http/ngx_http_request.c/#L2860 | static ngx_int_t
ngx_http_post_action(ngx_http_request_t *r)
{
ngx_http_core_loc_conf_t *clcf;
clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
if (clcf->post_action.data == NULL) {
return NGX_DECLINED;
}
ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
"post action: \"%V\"", &clcf->post_action);
r->main->count--;
r->http_version = NGX_HTTP_VERSION_9;
r->header_only = 1;
r->post_action = 1;
r->read_event_handler = ngx_http_block_reading;
if (clcf->post_action.data[0] == '/') {
ngx_http_internal_redirect(r, &clcf->post_action, NULL);
} else {
ngx_http_named_location(r, &clcf->post_action);
}
return NGX_OK;
} | ['static void\nngx_http_upstream_process_header(ngx_http_request_t *r, ngx_http_upstream_t *u)\n{\n ssize_t n;\n ngx_int_t rc;\n ngx_connection_t *c;\n c = u->peer.connection;\n ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0,\n "http upstream process header");\n c->log->action = "reading response header from upstream";\n if (c->read->timedout) {\n ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_TIMEOUT);\n return;\n }\n if (!u->request_sent && ngx_http_upstream_test_connect(c) != NGX_OK) {\n ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_ERROR);\n return;\n }\n if (u->buffer.start == NULL) {\n u->buffer.start = ngx_palloc(r->pool, u->conf->buffer_size);\n if (u->buffer.start == NULL) {\n ngx_http_upstream_finalize_request(r, u,\n NGX_HTTP_INTERNAL_SERVER_ERROR);\n return;\n }\n u->buffer.pos = u->buffer.start;\n u->buffer.last = u->buffer.start;\n u->buffer.end = u->buffer.start + u->conf->buffer_size;\n u->buffer.temporary = 1;\n u->buffer.tag = u->output.tag;\n if (ngx_list_init(&u->headers_in.headers, r->pool, 8,\n sizeof(ngx_table_elt_t))\n != NGX_OK)\n {\n ngx_http_upstream_finalize_request(r, u,\n NGX_HTTP_INTERNAL_SERVER_ERROR);\n return;\n }\n#if (NGX_HTTP_CACHE)\n if (r->cache) {\n u->buffer.pos += r->cache->header_start;\n u->buffer.last = u->buffer.pos;\n }\n#endif\n }\n for ( ;; ) {\n n = c->recv(c, u->buffer.last, u->buffer.end - u->buffer.last);\n if (n == NGX_AGAIN) {\n#if 0\n ngx_add_timer(rev, u->read_timeout);\n#endif\n if (ngx_handle_read_event(c->read, 0) != NGX_OK) {\n ngx_http_upstream_finalize_request(r, u,\n NGX_HTTP_INTERNAL_SERVER_ERROR);\n return;\n }\n return;\n }\n if (n == 0) {\n ngx_log_error(NGX_LOG_ERR, c->log, 0,\n "upstream prematurely closed connection");\n }\n if (n == NGX_ERROR || n == 0) {\n ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_ERROR);\n return;\n }\n u->buffer.last += n;\n#if 0\n u->valid_header_in = 0;\n u->peer.cached = 0;\n#endif\n rc = u->process_header(r);\n if (rc == NGX_AGAIN) {\n if (u->buffer.pos == u->buffer.end) {\n ngx_log_error(NGX_LOG_ERR, c->log, 0,\n "upstream sent too big header");\n ngx_http_upstream_next(r, u,\n NGX_HTTP_UPSTREAM_FT_INVALID_HEADER);\n return;\n }\n continue;\n }\n break;\n }\n if (rc == NGX_HTTP_UPSTREAM_INVALID_HEADER) {\n ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_INVALID_HEADER);\n return;\n }\n if (rc == NGX_ERROR) {\n ngx_http_upstream_finalize_request(r, u,\n NGX_HTTP_INTERNAL_SERVER_ERROR);\n return;\n }\n if (u->headers_in.status_n >= NGX_HTTP_BAD_REQUEST) {\n if (r->subrequest_in_memory) {\n u->buffer.last = u->buffer.pos;\n }\n if (ngx_http_upstream_test_next(r, u) == NGX_OK) {\n return;\n }\n if (ngx_http_upstream_intercept_errors(r, u) == NGX_OK) {\n return;\n }\n }\n if (ngx_http_upstream_process_headers(r, u) != NGX_OK) {\n return;\n }\n if (!r->subrequest_in_memory) {\n ngx_http_upstream_send_response(r, u);\n return;\n }\n if (u->input_filter == NULL) {\n u->input_filter_init = ngx_http_upstream_non_buffered_filter_init;\n u->input_filter = ngx_http_upstream_non_buffered_filter;\n u->input_filter_ctx = r;\n }\n if (u->input_filter_init(u->input_filter_ctx) == NGX_ERROR) {\n ngx_http_upstream_finalize_request(r, u,\n NGX_HTTP_INTERNAL_SERVER_ERROR);\n return;\n }\n n = u->buffer.last - u->buffer.pos;\n if (n) {\n u->buffer.last -= n;\n u->state->response_length += n;\n if (u->input_filter(u->input_filter_ctx, n) == NGX_ERROR) {\n ngx_http_upstream_finalize_request(r, u, NGX_ERROR);\n return;\n }\n if (u->length == 0) {\n ngx_http_upstream_finalize_request(r, u, 0);\n return;\n }\n }\n u->read_event_handler = ngx_http_upstream_process_body_in_memory;\n ngx_http_upstream_process_body_in_memory(r, u);\n}', 'static ngx_int_t\nngx_http_upstream_test_next(ngx_http_request_t *r, ngx_http_upstream_t *u)\n{\n ngx_uint_t status;\n ngx_http_upstream_next_t *un;\n status = u->headers_in.status_n;\n for (un = ngx_http_upstream_next_errors; un->status; un++) {\n if (status != un->status) {\n continue;\n }\n if (u->peer.tries > 1 && (u->conf->next_upstream & un->mask)) {\n ngx_http_upstream_next(r, u, un->mask);\n return NGX_OK;\n }\n#if (NGX_HTTP_CACHE)\n if (u->cache_status == NGX_HTTP_CACHE_EXPIRED\n && (u->conf->cache_use_stale & un->mask))\n {\n ngx_int_t rc;\n rc = u->reinit_request(r);\n if (rc == NGX_OK) {\n u->cache_status = NGX_HTTP_CACHE_STALE;\n rc = ngx_http_upstream_cache_send(r, u);\n }\n ngx_http_upstream_finalize_request(r, u, rc);\n return NGX_OK;\n }\n#endif\n }\n return NGX_DECLINED;\n}', 'static ngx_int_t\nngx_http_upstream_intercept_errors(ngx_http_request_t *r,\n ngx_http_upstream_t *u)\n{\n ngx_int_t status;\n ngx_uint_t i;\n ngx_table_elt_t *h;\n ngx_http_err_page_t *err_page;\n ngx_http_core_loc_conf_t *clcf;\n status = u->headers_in.status_n;\n if (status == NGX_HTTP_NOT_FOUND && u->conf->intercept_404) {\n ngx_http_upstream_finalize_request(r, u, NGX_HTTP_NOT_FOUND);\n return NGX_OK;\n }\n if (!u->conf->intercept_errors) {\n return NGX_DECLINED;\n }\n clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);\n if (clcf->error_pages == NULL) {\n return NGX_DECLINED;\n }\n err_page = clcf->error_pages->elts;\n for (i = 0; i < clcf->error_pages->nelts; i++) {\n if (err_page[i].status == status) {\n if (status == NGX_HTTP_UNAUTHORIZED\n && u->headers_in.www_authenticate)\n {\n h = ngx_list_push(&r->headers_out.headers);\n if (h == NULL) {\n ngx_http_upstream_finalize_request(r, u,\n NGX_HTTP_INTERNAL_SERVER_ERROR);\n return NGX_OK;\n }\n *h = *u->headers_in.www_authenticate;\n r->headers_out.www_authenticate = h;\n }\n ngx_http_upstream_finalize_request(r, u, status);\n return NGX_OK;\n }\n }\n return NGX_DECLINED;\n}', 'static void\nngx_http_upstream_finalize_request(ngx_http_request_t *r,\n ngx_http_upstream_t *u, ngx_int_t rc)\n{\n ngx_time_t *tp;\n ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,\n "finalize http upstream request: %i", rc);\n if (u->cleanup) {\n *u->cleanup = NULL;\n }\n if (u->resolved && u->resolved->ctx) {\n ngx_resolve_name_done(u->resolved->ctx);\n u->resolved->ctx = NULL;\n }\n if (u->state && u->state->response_sec) {\n tp = ngx_timeofday();\n u->state->response_sec = tp->sec - u->state->response_sec;\n u->state->response_msec = tp->msec - u->state->response_msec;\n if (u->pipe) {\n u->state->response_length = u->pipe->read_length;\n }\n }\n u->finalize_request(r, rc);\n if (u->peer.free) {\n u->peer.free(&u->peer, u->peer.data, 0);\n }\n if (u->peer.connection) {\n#if (NGX_HTTP_SSL)\n if (u->peer.connection->ssl) {\n u->peer.connection->ssl->no_wait_shutdown = 1;\n (void) ngx_ssl_shutdown(u->peer.connection);\n }\n#endif\n ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,\n "close http upstream connection: %d",\n u->peer.connection->fd);\n ngx_close_connection(u->peer.connection);\n }\n u->peer.connection = NULL;\n if (u->pipe && u->pipe->temp_file) {\n ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,\n "http upstream temp fd: %d",\n u->pipe->temp_file->file.fd);\n }\n#if (NGX_HTTP_CACHE)\n if (u->cacheable && r->cache) {\n time_t valid;\n ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,\n "http upstream cache fd: %d",\n r->cache->file.fd);\n if (rc == NGX_HTTP_BAD_GATEWAY || rc == NGX_HTTP_GATEWAY_TIME_OUT) {\n valid = ngx_http_file_cache_valid(u->conf->cache_valid, rc);\n if (valid) {\n r->cache->valid_sec = ngx_time() + valid;\n r->cache->error = rc;\n }\n }\n ngx_http_file_cache_free(r, u->pipe->temp_file);\n }\n#endif\n if (u->header_sent\n && (rc == NGX_ERROR || rc >= NGX_HTTP_SPECIAL_RESPONSE))\n {\n rc = 0;\n }\n if (rc == NGX_DECLINED) {\n return;\n }\n r->connection->log->action = "sending to client";\n if (rc == 0) {\n rc = ngx_http_send_special(r, NGX_HTTP_LAST);\n }\n ngx_http_finalize_request(r, rc);\n}', 'void\nngx_http_finalize_request(ngx_http_request_t *r, ngx_int_t rc)\n{\n ngx_connection_t *c;\n ngx_http_request_t *pr;\n ngx_http_core_loc_conf_t *clcf;\n c = r->connection;\n ngx_log_debug5(NGX_LOG_DEBUG_HTTP, c->log, 0,\n "http finalize request: %d, \\"%V?%V\\" a:%d, c:%d",\n rc, &r->uri, &r->args, r == c->data, r->main->count);\n if (rc == NGX_DONE) {\n ngx_http_finalize_connection(r);\n return;\n }\n if (rc == NGX_OK && r->filter_finalize) {\n c->error = 1;\n return;\n }\n if (rc == NGX_DECLINED) {\n r->content_handler = NULL;\n r->write_event_handler = ngx_http_core_run_phases;\n ngx_http_core_run_phases(r);\n return;\n }\n if (r != r->main && r->post_subrequest) {\n rc = r->post_subrequest->handler(r, r->post_subrequest->data, rc);\n }\n if (rc == NGX_ERROR\n || rc == NGX_HTTP_REQUEST_TIME_OUT\n || rc == NGX_HTTP_CLIENT_CLOSED_REQUEST\n || c->error)\n {\n if (ngx_http_post_action(r) == NGX_OK) {\n return;\n }\n if (r->main->blocked) {\n r->write_event_handler = ngx_http_request_finalizer;\n }\n ngx_http_terminate_request(r, rc);\n return;\n }\n if (rc >= NGX_HTTP_SPECIAL_RESPONSE\n || rc == NGX_HTTP_CREATED\n || rc == NGX_HTTP_NO_CONTENT)\n {\n if (rc == NGX_HTTP_CLOSE) {\n ngx_http_terminate_request(r, rc);\n return;\n }\n if (r == r->main) {\n if (c->read->timer_set) {\n ngx_del_timer(c->read);\n }\n if (c->write->timer_set) {\n ngx_del_timer(c->write);\n }\n }\n c->read->handler = ngx_http_request_handler;\n c->write->handler = ngx_http_request_handler;\n ngx_http_finalize_request(r, ngx_http_special_response_handler(r, rc));\n return;\n }\n if (r != r->main) {\n if (r->buffered || r->postponed) {\n if (ngx_http_set_write_handler(r) != NGX_OK) {\n ngx_http_terminate_request(r, 0);\n }\n return;\n }\n#if (NGX_DEBUG)\n if (r != c->data) {\n ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0,\n "http finalize non-active request: \\"%V?%V\\"",\n &r->uri, &r->args);\n }\n#endif\n pr = r->parent;\n if (r == c->data) {\n r->main->count--;\n if (!r->logged) {\n clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);\n if (clcf->log_subrequest) {\n ngx_http_log_request(r);\n }\n r->logged = 1;\n } else {\n ngx_log_error(NGX_LOG_ALERT, c->log, 0,\n "subrequest: \\"%V?%V\\" logged again",\n &r->uri, &r->args);\n }\n r->done = 1;\n if (pr->postponed && pr->postponed->request == r) {\n pr->postponed = pr->postponed->next;\n }\n c->data = pr;\n } else {\n r->write_event_handler = ngx_http_request_finalizer;\n if (r->waited) {\n r->done = 1;\n }\n }\n if (ngx_http_post_request(pr, NULL) != NGX_OK) {\n r->main->count++;\n ngx_http_terminate_request(r, 0);\n return;\n }\n ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0,\n "http wake parent request: \\"%V?%V\\"",\n &pr->uri, &pr->args);\n return;\n }\n if (r->buffered || c->buffered || r->postponed || r->blocked) {\n if (ngx_http_set_write_handler(r) != NGX_OK) {\n ngx_http_terminate_request(r, 0);\n }\n return;\n }\n if (r != c->data) {\n ngx_log_error(NGX_LOG_ALERT, c->log, 0,\n "http finalize non-active request: \\"%V?%V\\"",\n &r->uri, &r->args);\n return;\n }\n r->done = 1;\n if (!r->post_action) {\n r->request_complete = 1;\n }\n if (ngx_http_post_action(r) == NGX_OK) {\n return;\n }\n if (c->read->timer_set) {\n ngx_del_timer(c->read);\n }\n if (c->write->timer_set) {\n c->write->delayed = 0;\n ngx_del_timer(c->write);\n }\n if (c->read->eof) {\n ngx_http_close_request(r, 0);\n return;\n }\n ngx_http_finalize_connection(r);\n}', 'static ngx_int_t\nngx_http_post_action(ngx_http_request_t *r)\n{\n ngx_http_core_loc_conf_t *clcf;\n clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);\n if (clcf->post_action.data == NULL) {\n return NGX_DECLINED;\n }\n ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,\n "post action: \\"%V\\"", &clcf->post_action);\n r->main->count--;\n r->http_version = NGX_HTTP_VERSION_9;\n r->header_only = 1;\n r->post_action = 1;\n r->read_event_handler = ngx_http_block_reading;\n if (clcf->post_action.data[0] == \'/\') {\n ngx_http_internal_redirect(r, &clcf->post_action, NULL);\n } else {\n ngx_http_named_location(r, &clcf->post_action);\n }\n return NGX_OK;\n}'] |
23,174 | 0 | https://github.com/libav/libav/blob/df84d7d9bdf6b8e6896c711880f130b72738c828/libavcodec/mpegaudiodec.c/#L911 | void ff_mpa_synth_filter(MPA_INT *synth_buf_ptr, int *synth_buf_offset,
MPA_INT *window, int *dither_state,
OUT_INT *samples, int incr,
int32_t sb_samples[SBLIMIT])
{
register MPA_INT *synth_buf;
register const MPA_INT *w, *w2, *p;
int j, offset;
OUT_INT *samples2;
#if FRAC_BITS <= 15
int32_t tmp[32];
int sum, sum2;
#else
int64_t sum, sum2;
#endif
offset = *synth_buf_offset;
synth_buf = synth_buf_ptr + offset;
#if FRAC_BITS <= 15
dct32(tmp, sb_samples);
for(j=0;j<32;j++) {
synth_buf[j] = av_clip_int16(tmp[j]);
}
#else
dct32(synth_buf, sb_samples);
#endif
memcpy(synth_buf + 512, synth_buf, 32 * sizeof(MPA_INT));
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;
offset = (offset - 32) & 511;
*synth_buf_offset = offset;
} | ['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 int32_t sb_samples[SBLIMIT])\n{\n register MPA_INT *synth_buf;\n register const MPA_INT *w, *w2, *p;\n int j, offset;\n OUT_INT *samples2;\n#if FRAC_BITS <= 15\n int32_t tmp[32];\n int sum, sum2;\n#else\n int64_t sum, sum2;\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 memcpy(synth_buf + 512, synth_buf, 32 * sizeof(MPA_INT));\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 offset = (offset - 32) & 511;\n *synth_buf_offset = offset;\n}'] |
23,175 | 0 | https://github.com/openssl/openssl/blob/0c50e02b30de26a9a5027a1065db7e07fd91469a/crypto/bn/bn_mul.c/#L669 | int BN_mul(BIGNUM *r, BIGNUM *a, BIGNUM *b, BN_CTX *ctx)
{
int top,al,bl;
BIGNUM *rr;
#ifdef BN_RECURSION
BIGNUM *t;
int i,j,k;
#endif
#ifdef BN_COUNT
printf("BN_mul %d * %d\n",a->top,b->top);
#endif
bn_check_top(a);
bn_check_top(b);
bn_check_top(r);
al=a->top;
bl=b->top;
r->neg=a->neg^b->neg;
if ((al == 0) || (bl == 0))
{
BN_zero(r);
return(1);
}
top=al+bl;
if ((r == a) || (r == b))
rr= &(ctx->bn[ctx->tos+1]);
else
rr=r;
#if defined(BN_MUL_COMBA) || defined(BN_RECURSION)
if (al == bl)
{
# ifdef BN_MUL_COMBA
if (al == 8)
{
if (bn_wexpand(rr,16) == NULL) return(0);
rr->top=16;
bn_mul_comba8(rr->d,a->d,b->d);
goto end;
}
else
# endif
#ifdef BN_RECURSION
if (al < BN_MULL_SIZE_NORMAL)
#endif
{
if (bn_wexpand(rr,top) == NULL) return(0);
rr->top=top;
bn_mul_normal(rr->d,a->d,al,b->d,bl);
goto end;
}
# ifdef BN_RECURSION
goto symetric;
# endif
}
#endif
#ifdef BN_RECURSION
else if ((al < BN_MULL_SIZE_NORMAL) || (bl < BN_MULL_SIZE_NORMAL))
{
if (bn_wexpand(rr,top) == NULL) return(0);
rr->top=top;
bn_mul_normal(rr->d,a->d,al,b->d,bl);
goto end;
}
else
{
i=(al-bl);
if ((i == 1) && !BN_get_flags(b,BN_FLG_STATIC_DATA))
{
bn_wexpand(b,al);
b->d[bl]=0;
bl++;
goto symetric;
}
else if ((i == -1) && !BN_get_flags(a,BN_FLG_STATIC_DATA))
{
bn_wexpand(a,bl);
a->d[al]=0;
al++;
goto symetric;
}
}
#endif
if (bn_wexpand(rr,top) == NULL) return(0);
rr->top=top;
bn_mul_normal(rr->d,a->d,al,b->d,bl);
#ifdef BN_RECURSION
if (0)
{
symetric:
j=BN_num_bits_word((BN_ULONG)al);
j=1<<(j-1);
k=j+j;
t= &(ctx->bn[ctx->tos]);
if (al == j)
{
bn_wexpand(t,k*2);
bn_wexpand(rr,k*2);
bn_mul_recursive(rr->d,a->d,b->d,al,t->d);
}
else
{
bn_wexpand(a,k);
bn_wexpand(b,k);
bn_wexpand(t,k*4);
bn_wexpand(rr,k*4);
for (i=a->top; i<k; i++)
a->d[i]=0;
for (i=b->top; i<k; i++)
b->d[i]=0;
bn_mul_part_recursive(rr->d,a->d,b->d,al-j,j,t->d);
}
rr->top=top;
}
#endif
#if defined(BN_MUL_COMBA) || defined(BN_RECURSION)
end:
#endif
bn_fix_top(rr);
if (r != rr) BN_copy(r,rr);
return(1);
} | ['int RSA_check_key(RSA *key)\n\t{\n\tBIGNUM *i, *j, *k, *l, *m;\n\tBN_CTX *ctx;\n\tint r;\n\tint ret=1;\n\ti = BN_new();\n\tj = BN_new();\n\tk = BN_new();\n\tl = BN_new();\n\tm = BN_new();\n\tctx = BN_CTX_new();\n\tif (i == NULL || j == NULL || k == NULL || l == NULL ||\n\t\tm == NULL || ctx == NULL)\n\t\t{\n\t\tret = -1;\n\t\tRSAerr(RSA_F_RSA_CHECK_KEY, ERR_R_MALLOC_FAILURE);\n\t\tgoto err;\n\t\t}\n\tr = BN_is_prime(key->p, BN_prime_checks(BN_num_bits(key->p)), NULL, NULL, NULL);\n\tif (r != 1)\n\t\t{\n\t\tret = r;\n\t\tif (r != 0)\n\t\t\tgoto err;\n\t\tRSAerr(RSA_F_RSA_CHECK_KEY, RSA_R_P_NOT_PRIME);\n\t\t}\n\tr = BN_is_prime(key->q, BN_prime_checks(BN_num_bits(key->q)), NULL, NULL, NULL);\n\tif (r != 1)\n\t\t{\n\t\tret = r;\n\t\tif (r != 0)\n\t\t\tgoto err;\n\t\tRSAerr(RSA_F_RSA_CHECK_KEY, RSA_R_Q_NOT_PRIME);\n\t\t}\n\tr = BN_mul(i, key->p, key->q, ctx);\n\tif (!r) { ret = -1; goto err; }\n\tif (BN_cmp(i, key->n) != 0)\n\t\t{\n\t\tret = 0;\n\t\tRSAerr(RSA_F_RSA_CHECK_KEY, RSA_R_N_DOES_NOT_EQUAL_P_Q);\n\t\t}\n\tr = BN_sub(i, key->p, BN_value_one());\n\tif (!r) { ret = -1; goto err; }\n\tr = BN_sub(j, key->q, BN_value_one());\n\tif (!r) { ret = -1; goto err; }\n\tr = BN_mul(l, i, j, ctx);\n\tif (!r) { ret = -1; goto err; }\n\tr = BN_gcd(m, i, j, ctx);\n\tif (!r) { ret = -1; goto err; }\n\tr = BN_div(k, NULL, l, m, ctx);\n\tif (!r) { ret = -1; goto err; }\n\tr = BN_mod_mul(i, key->d, key->e, k, ctx);\n\tif (!r) { ret = -1; goto err; }\n\tif (!BN_is_one(i))\n\t\t{\n\t\tret = 0;\n\t\tRSAerr(RSA_F_RSA_CHECK_KEY, RSA_R_D_E_NOT_CONGRUENT_TO_1);\n\t\t}\n\tif (key->dmp1 != NULL && key->dmq1 != NULL && key->iqmp != NULL)\n\t\t{\n\t\tr = BN_sub(i, key->p, BN_value_one());\n\t\tif (!r) { ret = -1; goto err; }\n\t\tr = BN_mod(j, key->d, i, ctx);\n\t\tif (!r) { ret = -1; goto err; }\n\t\tif (BN_cmp(j, key->dmp1) != 0)\n\t\t\t{\n\t\t\tret = 0;\n\t\t\tRSAerr(RSA_F_RSA_CHECK_KEY,\n\t\t\t\tRSA_R_DMP1_NOT_CONGRUENT_TO_D);\n\t\t\t}\n\t\tr = BN_sub(i, key->q, BN_value_one());\n\t\tif (!r) { ret = -1; goto err; }\n\t\tr = BN_mod(j, key->d, i, ctx);\n\t\tif (!r) { ret = -1; goto err; }\n\t\tif (BN_cmp(j, key->dmq1) != 0)\n\t\t\t{\n\t\t\tret = 0;\n\t\t\tRSAerr(RSA_F_RSA_CHECK_KEY,\n\t\t\t\tRSA_R_DMQ1_NOT_CONGRUENT_TO_D);\n\t\t\t}\n\t\tif(!BN_mod_inverse(i, key->q, key->p, ctx))\n\t\t\t{\n\t\t\tret = -1;\n\t\t\tgoto err;\n\t\t\t}\n\t\tif (BN_cmp(i, key->iqmp) != 0)\n\t\t\t{\n\t\t\tret = 0;\n\t\t\tRSAerr(RSA_F_RSA_CHECK_KEY,\n\t\t\t\tRSA_R_IQMP_NOT_INVERSE_OF_Q);\n\t\t\t}\n\t\t}\n err:\n\tif (i != NULL) BN_free(i);\n\tif (j != NULL) BN_free(j);\n\tif (k != NULL) BN_free(k);\n\tif (l != NULL) BN_free(l);\n\tif (m != NULL) BN_free(m);\n\tif (ctx != NULL) BN_CTX_free(ctx);\n\treturn (ret);\n\t}', 'BN_CTX *BN_CTX_new(void)\n\t{\n\tBN_CTX *ret;\n\tret=(BN_CTX *)Malloc(sizeof(BN_CTX));\n\tif (ret == NULL)\n\t\t{\n\t\tBNerr(BN_F_BN_CTX_NEW,ERR_R_MALLOC_FAILURE);\n\t\treturn(NULL);\n\t\t}\n\tBN_CTX_init(ret);\n\tret->flags=BN_FLG_MALLOCED;\n\treturn(ret);\n\t}', 'void BN_CTX_init(BN_CTX *ctx)\n\t{\n\tmemset(ctx,0,sizeof(BN_CTX));\n\tctx->tos=0;\n\tctx->flags=0;\n\t}', 'int BN_is_prime(BIGNUM *a, int checks, void (*callback)(int,int,void *),\n\t BN_CTX *ctx_passed, void *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_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\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\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}'] |
23,176 | 0 | https://gitlab.com/libtiff/libtiff/blob/06337fdcfd19f2e5dbe99209540dbe34315f29eb/libtiff/tif_swab.c/#L111 | void
TIFFSwabArrayOfLong(register uint32* lp, tmsize_t n)
{
register unsigned char *cp;
register unsigned char t;
assert(sizeof(uint32)==4);
while (n-- > 0) {
cp = (unsigned char *)lp;
t = cp[3]; cp[3] = cp[0]; cp[0] = t;
t = cp[2]; cp[2] = cp[1]; cp[1] = t;
lp++;
}
} | ['static int\ninitImage(void)\n{\n uint32 w, h;\n if (order)\n TIFFSetField(tif, TIFFTAG_FILLORDER, order);\n if (photo != (uint16) -1)\n TIFFSetField(tif, TIFFTAG_PHOTOMETRIC, photo);\n if (!TIFFRGBAImageBegin(&img, tif, stoponerr, title)) {\n TIFFError(filelist[fileindex], "%s", title);\n TIFFClose(tif);\n tif = NULL;\n return -1;\n }\n h = img.height;\n w = img.width;\n if (h > ymax) {\n w = (int)(w * ((float)ymax / h));\n h = ymax;\n }\n if (w > xmax) {\n h = (int)(h * ((float)xmax / w));\n w = xmax;\n }\n\tif (w != width || h != height) {\n\t\tuint32 rastersize =\n\t\t\t_TIFFMultiply32(tif, img.width, img.height, "allocating raster buffer");\n\t\tif (raster != NULL)\n\t\t\t_TIFFfree(raster), raster = NULL;\n\t\traster = (uint32*) _TIFFCheckMalloc(tif, rastersize, sizeof (uint32),\n\t\t\t\t\t\t "allocating raster buffer");\n\t\tif (raster == NULL) {\n\t\t\twidth = height = 0;\n\t\t\tTIFFError(filelist[fileindex], "No space for raster buffer");\n\t\t\tcleanup_and_exit();\n\t\t}\n\t\twidth = w;\n\t\theight = h;\n\t}\n\tTIFFRGBAImageGet(&img, raster, img.width, img.height);\n#if HOST_BIGENDIAN\n\tTIFFSwabArrayOfLong(raster,img.width*img.height);\n#endif\n\treturn 0;\n}', 'void\nTIFFClose(TIFF* tif)\n{\n\tTIFFCloseProc closeproc = tif->tif_closeproc;\n\tthandle_t fd = tif->tif_clientdata;\n\tTIFFCleanup(tif);\n\t(void) (*closeproc)(fd);\n}', 'void\nTIFFCleanup(TIFF* tif)\n{\n\tif (tif->tif_mode != O_RDONLY)\n\t\tTIFFFlush(tif);\n\t(*tif->tif_cleanup)(tif);\n\tTIFFFreeDirectory(tif);\n\tif (tif->tif_dirlist)\n\t\t_TIFFfree(tif->tif_dirlist);\n\twhile( tif->tif_clientinfo )\n\t{\n\t\tTIFFClientInfoLink *psLink = tif->tif_clientinfo;\n\t\ttif->tif_clientinfo = psLink->next;\n\t\t_TIFFfree( psLink->name );\n\t\t_TIFFfree( psLink );\n\t}\n\tif (tif->tif_rawdata && (tif->tif_flags&TIFF_MYBUFFER))\n\t\t_TIFFfree(tif->tif_rawdata);\n\tif (isMapped(tif))\n\t\tTIFFUnmapFileContents(tif, tif->tif_base, (toff_t)tif->tif_size);\n\tif (tif->tif_fields && tif->tif_nfields > 0) {\n\t\tuint32 i;\n\t\tfor (i = 0; i < tif->tif_nfields; i++) {\n\t\t\tTIFFField *fld = tif->tif_fields[i];\n\t\t\tif (fld->field_bit == FIELD_CUSTOM &&\n\t\t\t strncmp("Tag ", fld->field_name, 4) == 0) {\n\t\t\t\t_TIFFfree(fld->field_name);\n\t\t\t\t_TIFFfree(fld);\n\t\t\t}\n\t\t}\n\t\t_TIFFfree(tif->tif_fields);\n\t}\n if (tif->tif_nfieldscompat > 0) {\n uint32 i;\n for (i = 0; i < tif->tif_nfieldscompat; i++) {\n if (tif->tif_fieldscompat[i].allocated_size)\n _TIFFfree(tif->tif_fieldscompat[i].fields);\n }\n _TIFFfree(tif->tif_fieldscompat);\n }\n\t_TIFFfree(tif);\n}', 'int\nTIFFFlush(TIFF* tif)\n{\n if( tif->tif_mode == O_RDONLY )\n return 1;\n if (!TIFFFlushData(tif))\n return (0);\n if( (tif->tif_flags & TIFF_DIRTYSTRIP)\n && !(tif->tif_flags & TIFF_DIRTYDIRECT)\n && tif->tif_mode == O_RDWR )\n {\n uint64 *offsets=NULL, *sizes=NULL;\n if( TIFFIsTiled(tif) )\n {\n if( TIFFGetField( tif, TIFFTAG_TILEOFFSETS, &offsets )\n && TIFFGetField( tif, TIFFTAG_TILEBYTECOUNTS, &sizes )\n && _TIFFRewriteField( tif, TIFFTAG_TILEOFFSETS, TIFF_LONG8,\n tif->tif_dir.td_nstrips, offsets )\n && _TIFFRewriteField( tif, TIFFTAG_TILEBYTECOUNTS, TIFF_LONG8,\n tif->tif_dir.td_nstrips, sizes ) )\n {\n tif->tif_flags &= ~TIFF_DIRTYSTRIP;\n tif->tif_flags &= ~TIFF_BEENWRITING;\n return 1;\n }\n }\n else\n {\n if( TIFFGetField( tif, TIFFTAG_STRIPOFFSETS, &offsets )\n && TIFFGetField( tif, TIFFTAG_STRIPBYTECOUNTS, &sizes )\n && _TIFFRewriteField( tif, TIFFTAG_STRIPOFFSETS, TIFF_LONG8,\n tif->tif_dir.td_nstrips, offsets )\n && _TIFFRewriteField( tif, TIFFTAG_STRIPBYTECOUNTS, TIFF_LONG8,\n tif->tif_dir.td_nstrips, sizes ) )\n {\n tif->tif_flags &= ~TIFF_DIRTYSTRIP;\n tif->tif_flags &= ~TIFF_BEENWRITING;\n return 1;\n }\n }\n }\n if ((tif->tif_flags & (TIFF_DIRTYDIRECT|TIFF_DIRTYSTRIP))\n && !TIFFRewriteDirectory(tif))\n return (0);\n return (1);\n}', 'int\nTIFFFlushData(TIFF* tif)\n{\n\tif ((tif->tif_flags & TIFF_BEENWRITING) == 0)\n\t\treturn (1);\n\tif (tif->tif_flags & TIFF_POSTENCODE) {\n\t\ttif->tif_flags &= ~TIFF_POSTENCODE;\n\t\tif (!(*tif->tif_postencode)(tif))\n\t\t\treturn (0);\n\t}\n\treturn (TIFFFlushData1(tif));\n}', 'int\nTIFFRewriteDirectory( TIFF *tif )\n{\n\tstatic const char module[] = "TIFFRewriteDirectory";\n\tif( tif->tif_diroff == 0 )\n\t\treturn TIFFWriteDirectory( tif );\n\tif (!(tif->tif_flags&TIFF_BIGTIFF))\n\t{\n\t\tif (tif->tif_header.classic.tiff_diroff == tif->tif_diroff)\n\t\t{\n\t\t\ttif->tif_header.classic.tiff_diroff = 0;\n\t\t\ttif->tif_diroff = 0;\n\t\t\tTIFFSeekFile(tif,4,SEEK_SET);\n\t\t\tif (!WriteOK(tif, &(tif->tif_header.classic.tiff_diroff),4))\n\t\t\t{\n\t\t\t\tTIFFErrorExt(tif->tif_clientdata, tif->tif_name,\n\t\t\t\t "Error updating TIFF header");\n\t\t\t\treturn (0);\n\t\t\t}\n\t\t}\n\t\telse\n\t\t{\n\t\t\tuint32 nextdir;\n\t\t\tnextdir = tif->tif_header.classic.tiff_diroff;\n\t\t\twhile(1) {\n\t\t\t\tuint16 dircount;\n\t\t\t\tuint32 nextnextdir;\n\t\t\t\tif (!SeekOK(tif, nextdir) ||\n\t\t\t\t !ReadOK(tif, &dircount, 2)) {\n\t\t\t\t\tTIFFErrorExt(tif->tif_clientdata, module,\n\t\t\t\t\t "Error fetching directory count");\n\t\t\t\t\treturn (0);\n\t\t\t\t}\n\t\t\t\tif (tif->tif_flags & TIFF_SWAB)\n\t\t\t\t\tTIFFSwabShort(&dircount);\n\t\t\t\t(void) TIFFSeekFile(tif,\n\t\t\t\t nextdir+2+dircount*12, SEEK_SET);\n\t\t\t\tif (!ReadOK(tif, &nextnextdir, 4)) {\n\t\t\t\t\tTIFFErrorExt(tif->tif_clientdata, module,\n\t\t\t\t\t "Error fetching directory link");\n\t\t\t\t\treturn (0);\n\t\t\t\t}\n\t\t\t\tif (tif->tif_flags & TIFF_SWAB)\n\t\t\t\t\tTIFFSwabLong(&nextnextdir);\n\t\t\t\tif (nextnextdir==tif->tif_diroff)\n\t\t\t\t{\n\t\t\t\t\tuint32 m;\n\t\t\t\t\tm=0;\n\t\t\t\t\t(void) TIFFSeekFile(tif,\n\t\t\t\t\t nextdir+2+dircount*12, SEEK_SET);\n\t\t\t\t\tif (!WriteOK(tif, &m, 4)) {\n\t\t\t\t\t\tTIFFErrorExt(tif->tif_clientdata, module,\n\t\t\t\t\t\t "Error writing directory link");\n\t\t\t\t\t\treturn (0);\n\t\t\t\t\t}\n\t\t\t\t\ttif->tif_diroff=0;\n\t\t\t\t\tbreak;\n\t\t\t\t}\n\t\t\t\tnextdir=nextnextdir;\n\t\t\t}\n\t\t}\n\t}\n\telse\n\t{\n\t\tif (tif->tif_header.big.tiff_diroff == tif->tif_diroff)\n\t\t{\n\t\t\ttif->tif_header.big.tiff_diroff = 0;\n\t\t\ttif->tif_diroff = 0;\n\t\t\tTIFFSeekFile(tif,8,SEEK_SET);\n\t\t\tif (!WriteOK(tif, &(tif->tif_header.big.tiff_diroff),8))\n\t\t\t{\n\t\t\t\tTIFFErrorExt(tif->tif_clientdata, tif->tif_name,\n\t\t\t\t "Error updating TIFF header");\n\t\t\t\treturn (0);\n\t\t\t}\n\t\t}\n\t\telse\n\t\t{\n\t\t\tuint64 nextdir;\n\t\t\tnextdir = tif->tif_header.big.tiff_diroff;\n\t\t\twhile(1) {\n\t\t\t\tuint64 dircount64;\n\t\t\t\tuint16 dircount;\n\t\t\t\tuint64 nextnextdir;\n\t\t\t\tif (!SeekOK(tif, nextdir) ||\n\t\t\t\t !ReadOK(tif, &dircount64, 8)) {\n\t\t\t\t\tTIFFErrorExt(tif->tif_clientdata, module,\n\t\t\t\t\t "Error fetching directory count");\n\t\t\t\t\treturn (0);\n\t\t\t\t}\n\t\t\t\tif (tif->tif_flags & TIFF_SWAB)\n\t\t\t\t\tTIFFSwabLong8(&dircount64);\n\t\t\t\tif (dircount64>0xFFFF)\n\t\t\t\t{\n\t\t\t\t\tTIFFErrorExt(tif->tif_clientdata, module,\n\t\t\t\t\t "Sanity check on tag count failed, likely corrupt TIFF");\n\t\t\t\t\treturn (0);\n\t\t\t\t}\n\t\t\t\tdircount=(uint16)dircount64;\n\t\t\t\t(void) TIFFSeekFile(tif,\n\t\t\t\t nextdir+8+dircount*20, SEEK_SET);\n\t\t\t\tif (!ReadOK(tif, &nextnextdir, 8)) {\n\t\t\t\t\tTIFFErrorExt(tif->tif_clientdata, module,\n\t\t\t\t\t "Error fetching directory link");\n\t\t\t\t\treturn (0);\n\t\t\t\t}\n\t\t\t\tif (tif->tif_flags & TIFF_SWAB)\n\t\t\t\t\tTIFFSwabLong8(&nextnextdir);\n\t\t\t\tif (nextnextdir==tif->tif_diroff)\n\t\t\t\t{\n\t\t\t\t\tuint64 m;\n\t\t\t\t\tm=0;\n\t\t\t\t\t(void) TIFFSeekFile(tif,\n\t\t\t\t\t nextdir+8+dircount*20, SEEK_SET);\n\t\t\t\t\tif (!WriteOK(tif, &m, 8)) {\n\t\t\t\t\t\tTIFFErrorExt(tif->tif_clientdata, module,\n\t\t\t\t\t\t "Error writing directory link");\n\t\t\t\t\t\treturn (0);\n\t\t\t\t\t}\n\t\t\t\t\ttif->tif_diroff=0;\n\t\t\t\t\tbreak;\n\t\t\t\t}\n\t\t\t\tnextdir=nextnextdir;\n\t\t\t}\n\t\t}\n\t}\n\treturn TIFFWriteDirectory( tif );\n}', 'int\nTIFFWriteDirectory(TIFF* tif)\n{\n\treturn TIFFWriteDirectorySec(tif,TRUE,TRUE,NULL);\n}', 'static int\nTIFFWriteDirectorySec(TIFF* tif, int isimage, int imagedone, uint64* pdiroff)\n{\n\tstatic const char module[] = "TIFFWriteDirectorySec";\n\tuint32 ndir;\n\tTIFFDirEntry* dir;\n\tuint32 dirsize;\n\tvoid* dirmem;\n\tuint32 m;\n\tif (tif->tif_mode == O_RDONLY)\n\t\treturn (1);\n _TIFFFillStriles( tif );\n\tif (imagedone)\n\t{\n\t\tif (tif->tif_flags & TIFF_POSTENCODE)\n\t\t{\n\t\t\ttif->tif_flags &= ~TIFF_POSTENCODE;\n\t\t\tif (!(*tif->tif_postencode)(tif))\n\t\t\t{\n\t\t\t\tTIFFErrorExt(tif->tif_clientdata,module,\n\t\t\t\t "Error post-encoding before directory write");\n\t\t\t\treturn (0);\n\t\t\t}\n\t\t}\n\t\t(*tif->tif_close)(tif);\n\t\tif (tif->tif_rawcc > 0\n\t\t && (tif->tif_flags & TIFF_BEENWRITING) != 0 )\n\t\t{\n\t\t if( !TIFFFlushData1(tif) )\n {\n\t\t\tTIFFErrorExt(tif->tif_clientdata, module,\n\t\t\t "Error flushing data before directory write");\n\t\t\treturn (0);\n }\n\t\t}\n\t\tif ((tif->tif_flags & TIFF_MYBUFFER) && tif->tif_rawdata)\n\t\t{\n\t\t\t_TIFFfree(tif->tif_rawdata);\n\t\t\ttif->tif_rawdata = NULL;\n\t\t\ttif->tif_rawcc = 0;\n\t\t\ttif->tif_rawdatasize = 0;\n tif->tif_rawdataoff = 0;\n tif->tif_rawdataloaded = 0;\n\t\t}\n\t\ttif->tif_flags &= ~(TIFF_BEENWRITING|TIFF_BUFFERSETUP);\n\t}\n\tdir=NULL;\n\tdirmem=NULL;\n\tdirsize=0;\n\twhile (1)\n\t{\n\t\tndir=0;\n\t\tif (isimage)\n\t\t{\n\t\t\tif (TIFFFieldSet(tif,FIELD_IMAGEDIMENSIONS))\n\t\t\t{\n\t\t\t\tif (!TIFFWriteDirectoryTagShortLong(tif,&ndir,dir,TIFFTAG_IMAGEWIDTH,tif->tif_dir.td_imagewidth))\n\t\t\t\t\tgoto bad;\n\t\t\t\tif (!TIFFWriteDirectoryTagShortLong(tif,&ndir,dir,TIFFTAG_IMAGELENGTH,tif->tif_dir.td_imagelength))\n\t\t\t\t\tgoto bad;\n\t\t\t}\n\t\t\tif (TIFFFieldSet(tif,FIELD_TILEDIMENSIONS))\n\t\t\t{\n\t\t\t\tif (!TIFFWriteDirectoryTagShortLong(tif,&ndir,dir,TIFFTAG_TILEWIDTH,tif->tif_dir.td_tilewidth))\n\t\t\t\t\tgoto bad;\n\t\t\t\tif (!TIFFWriteDirectoryTagShortLong(tif,&ndir,dir,TIFFTAG_TILELENGTH,tif->tif_dir.td_tilelength))\n\t\t\t\t\tgoto bad;\n\t\t\t}\n\t\t\tif (TIFFFieldSet(tif,FIELD_RESOLUTION))\n\t\t\t{\n\t\t\t\tif (!TIFFWriteDirectoryTagRational(tif,&ndir,dir,TIFFTAG_XRESOLUTION,tif->tif_dir.td_xresolution))\n\t\t\t\t\tgoto bad;\n\t\t\t\tif (!TIFFWriteDirectoryTagRational(tif,&ndir,dir,TIFFTAG_YRESOLUTION,tif->tif_dir.td_yresolution))\n\t\t\t\t\tgoto bad;\n\t\t\t}\n\t\t\tif (TIFFFieldSet(tif,FIELD_POSITION))\n\t\t\t{\n\t\t\t\tif (!TIFFWriteDirectoryTagRational(tif,&ndir,dir,TIFFTAG_XPOSITION,tif->tif_dir.td_xposition))\n\t\t\t\t\tgoto bad;\n\t\t\t\tif (!TIFFWriteDirectoryTagRational(tif,&ndir,dir,TIFFTAG_YPOSITION,tif->tif_dir.td_yposition))\n\t\t\t\t\tgoto bad;\n\t\t\t}\n\t\t\tif (TIFFFieldSet(tif,FIELD_SUBFILETYPE))\n\t\t\t{\n\t\t\t\tif (!TIFFWriteDirectoryTagLong(tif,&ndir,dir,TIFFTAG_SUBFILETYPE,tif->tif_dir.td_subfiletype))\n\t\t\t\t\tgoto bad;\n\t\t\t}\n\t\t\tif (TIFFFieldSet(tif,FIELD_BITSPERSAMPLE))\n\t\t\t{\n\t\t\t\tif (!TIFFWriteDirectoryTagShortPerSample(tif,&ndir,dir,TIFFTAG_BITSPERSAMPLE,tif->tif_dir.td_bitspersample))\n\t\t\t\t\tgoto bad;\n\t\t\t}\n\t\t\tif (TIFFFieldSet(tif,FIELD_COMPRESSION))\n\t\t\t{\n\t\t\t\tif (!TIFFWriteDirectoryTagShort(tif,&ndir,dir,TIFFTAG_COMPRESSION,tif->tif_dir.td_compression))\n\t\t\t\t\tgoto bad;\n\t\t\t}\n\t\t\tif (TIFFFieldSet(tif,FIELD_PHOTOMETRIC))\n\t\t\t{\n\t\t\t\tif (!TIFFWriteDirectoryTagShort(tif,&ndir,dir,TIFFTAG_PHOTOMETRIC,tif->tif_dir.td_photometric))\n\t\t\t\t\tgoto bad;\n\t\t\t}\n\t\t\tif (TIFFFieldSet(tif,FIELD_THRESHHOLDING))\n\t\t\t{\n\t\t\t\tif (!TIFFWriteDirectoryTagShort(tif,&ndir,dir,TIFFTAG_THRESHHOLDING,tif->tif_dir.td_threshholding))\n\t\t\t\t\tgoto bad;\n\t\t\t}\n\t\t\tif (TIFFFieldSet(tif,FIELD_FILLORDER))\n\t\t\t{\n\t\t\t\tif (!TIFFWriteDirectoryTagShort(tif,&ndir,dir,TIFFTAG_FILLORDER,tif->tif_dir.td_fillorder))\n\t\t\t\t\tgoto bad;\n\t\t\t}\n\t\t\tif (TIFFFieldSet(tif,FIELD_ORIENTATION))\n\t\t\t{\n\t\t\t\tif (!TIFFWriteDirectoryTagShort(tif,&ndir,dir,TIFFTAG_ORIENTATION,tif->tif_dir.td_orientation))\n\t\t\t\t\tgoto bad;\n\t\t\t}\n\t\t\tif (TIFFFieldSet(tif,FIELD_SAMPLESPERPIXEL))\n\t\t\t{\n\t\t\t\tif (!TIFFWriteDirectoryTagShort(tif,&ndir,dir,TIFFTAG_SAMPLESPERPIXEL,tif->tif_dir.td_samplesperpixel))\n\t\t\t\t\tgoto bad;\n\t\t\t}\n\t\t\tif (TIFFFieldSet(tif,FIELD_ROWSPERSTRIP))\n\t\t\t{\n\t\t\t\tif (!TIFFWriteDirectoryTagShortLong(tif,&ndir,dir,TIFFTAG_ROWSPERSTRIP,tif->tif_dir.td_rowsperstrip))\n\t\t\t\t\tgoto bad;\n\t\t\t}\n\t\t\tif (TIFFFieldSet(tif,FIELD_MINSAMPLEVALUE))\n\t\t\t{\n\t\t\t\tif (!TIFFWriteDirectoryTagShortPerSample(tif,&ndir,dir,TIFFTAG_MINSAMPLEVALUE,tif->tif_dir.td_minsamplevalue))\n\t\t\t\t\tgoto bad;\n\t\t\t}\n\t\t\tif (TIFFFieldSet(tif,FIELD_MAXSAMPLEVALUE))\n\t\t\t{\n\t\t\t\tif (!TIFFWriteDirectoryTagShortPerSample(tif,&ndir,dir,TIFFTAG_MAXSAMPLEVALUE,tif->tif_dir.td_maxsamplevalue))\n\t\t\t\t\tgoto bad;\n\t\t\t}\n\t\t\tif (TIFFFieldSet(tif,FIELD_PLANARCONFIG))\n\t\t\t{\n\t\t\t\tif (!TIFFWriteDirectoryTagShort(tif,&ndir,dir,TIFFTAG_PLANARCONFIG,tif->tif_dir.td_planarconfig))\n\t\t\t\t\tgoto bad;\n\t\t\t}\n\t\t\tif (TIFFFieldSet(tif,FIELD_RESOLUTIONUNIT))\n\t\t\t{\n\t\t\t\tif (!TIFFWriteDirectoryTagShort(tif,&ndir,dir,TIFFTAG_RESOLUTIONUNIT,tif->tif_dir.td_resolutionunit))\n\t\t\t\t\tgoto bad;\n\t\t\t}\n\t\t\tif (TIFFFieldSet(tif,FIELD_PAGENUMBER))\n\t\t\t{\n\t\t\t\tif (!TIFFWriteDirectoryTagShortArray(tif,&ndir,dir,TIFFTAG_PAGENUMBER,2,&tif->tif_dir.td_pagenumber[0]))\n\t\t\t\t\tgoto bad;\n\t\t\t}\n\t\t\tif (TIFFFieldSet(tif,FIELD_STRIPBYTECOUNTS))\n\t\t\t{\n\t\t\t\tif (!isTiled(tif))\n\t\t\t\t{\n\t\t\t\t\tif (!TIFFWriteDirectoryTagLongLong8Array(tif,&ndir,dir,TIFFTAG_STRIPBYTECOUNTS,tif->tif_dir.td_nstrips,tif->tif_dir.td_stripbytecount_p))\n\t\t\t\t\t\tgoto bad;\n\t\t\t\t}\n\t\t\t\telse\n\t\t\t\t{\n\t\t\t\t\tif (!TIFFWriteDirectoryTagLongLong8Array(tif,&ndir,dir,TIFFTAG_TILEBYTECOUNTS,tif->tif_dir.td_nstrips,tif->tif_dir.td_stripbytecount_p))\n\t\t\t\t\t\tgoto bad;\n\t\t\t\t}\n\t\t\t}\n\t\t\tif (TIFFFieldSet(tif,FIELD_STRIPOFFSETS))\n\t\t\t{\n\t\t\t\tif (!isTiled(tif))\n\t\t\t\t{\n if (tif->tif_dir.td_stripoffset_p != NULL &&\n !TIFFWriteDirectoryTagLongLong8Array(tif,&ndir,dir,TIFFTAG_STRIPOFFSETS,tif->tif_dir.td_nstrips,tif->tif_dir.td_stripoffset_p))\n goto bad;\n\t\t\t\t}\n\t\t\t\telse\n\t\t\t\t{\n\t\t\t\t\tif (!TIFFWriteDirectoryTagLongLong8Array(tif,&ndir,dir,TIFFTAG_TILEOFFSETS,tif->tif_dir.td_nstrips,tif->tif_dir.td_stripoffset_p))\n\t\t\t\t\t\tgoto bad;\n\t\t\t\t}\n\t\t\t}\n\t\t\tif (TIFFFieldSet(tif,FIELD_COLORMAP))\n\t\t\t{\n\t\t\t\tif (!TIFFWriteDirectoryTagColormap(tif,&ndir,dir))\n\t\t\t\t\tgoto bad;\n\t\t\t}\n\t\t\tif (TIFFFieldSet(tif,FIELD_EXTRASAMPLES))\n\t\t\t{\n\t\t\t\tif (tif->tif_dir.td_extrasamples)\n\t\t\t\t{\n\t\t\t\t\tuint16 na;\n\t\t\t\t\tuint16* nb;\n\t\t\t\t\tTIFFGetFieldDefaulted(tif,TIFFTAG_EXTRASAMPLES,&na,&nb);\n\t\t\t\t\tif (!TIFFWriteDirectoryTagShortArray(tif,&ndir,dir,TIFFTAG_EXTRASAMPLES,na,nb))\n\t\t\t\t\t\tgoto bad;\n\t\t\t\t}\n\t\t\t}\n\t\t\tif (TIFFFieldSet(tif,FIELD_SAMPLEFORMAT))\n\t\t\t{\n\t\t\t\tif (!TIFFWriteDirectoryTagShortPerSample(tif,&ndir,dir,TIFFTAG_SAMPLEFORMAT,tif->tif_dir.td_sampleformat))\n\t\t\t\t\tgoto bad;\n\t\t\t}\n\t\t\tif (TIFFFieldSet(tif,FIELD_SMINSAMPLEVALUE))\n\t\t\t{\n\t\t\t\tif (!TIFFWriteDirectoryTagSampleformatArray(tif,&ndir,dir,TIFFTAG_SMINSAMPLEVALUE,tif->tif_dir.td_samplesperpixel,tif->tif_dir.td_sminsamplevalue))\n\t\t\t\t\tgoto bad;\n\t\t\t}\n\t\t\tif (TIFFFieldSet(tif,FIELD_SMAXSAMPLEVALUE))\n\t\t\t{\n\t\t\t\tif (!TIFFWriteDirectoryTagSampleformatArray(tif,&ndir,dir,TIFFTAG_SMAXSAMPLEVALUE,tif->tif_dir.td_samplesperpixel,tif->tif_dir.td_smaxsamplevalue))\n\t\t\t\t\tgoto bad;\n\t\t\t}\n\t\t\tif (TIFFFieldSet(tif,FIELD_IMAGEDEPTH))\n\t\t\t{\n\t\t\t\tif (!TIFFWriteDirectoryTagLong(tif,&ndir,dir,TIFFTAG_IMAGEDEPTH,tif->tif_dir.td_imagedepth))\n\t\t\t\t\tgoto bad;\n\t\t\t}\n\t\t\tif (TIFFFieldSet(tif,FIELD_TILEDEPTH))\n\t\t\t{\n\t\t\t\tif (!TIFFWriteDirectoryTagLong(tif,&ndir,dir,TIFFTAG_TILEDEPTH,tif->tif_dir.td_tiledepth))\n\t\t\t\t\tgoto bad;\n\t\t\t}\n\t\t\tif (TIFFFieldSet(tif,FIELD_HALFTONEHINTS))\n\t\t\t{\n\t\t\t\tif (!TIFFWriteDirectoryTagShortArray(tif,&ndir,dir,TIFFTAG_HALFTONEHINTS,2,&tif->tif_dir.td_halftonehints[0]))\n\t\t\t\t\tgoto bad;\n\t\t\t}\n\t\t\tif (TIFFFieldSet(tif,FIELD_YCBCRSUBSAMPLING))\n\t\t\t{\n\t\t\t\tif (!TIFFWriteDirectoryTagShortArray(tif,&ndir,dir,TIFFTAG_YCBCRSUBSAMPLING,2,&tif->tif_dir.td_ycbcrsubsampling[0]))\n\t\t\t\t\tgoto bad;\n\t\t\t}\n\t\t\tif (TIFFFieldSet(tif,FIELD_YCBCRPOSITIONING))\n\t\t\t{\n\t\t\t\tif (!TIFFWriteDirectoryTagShort(tif,&ndir,dir,TIFFTAG_YCBCRPOSITIONING,tif->tif_dir.td_ycbcrpositioning))\n\t\t\t\t\tgoto bad;\n\t\t\t}\n\t\t\tif (TIFFFieldSet(tif,FIELD_REFBLACKWHITE))\n\t\t\t{\n\t\t\t\tif (!TIFFWriteDirectoryTagRationalArray(tif,&ndir,dir,TIFFTAG_REFERENCEBLACKWHITE,6,tif->tif_dir.td_refblackwhite))\n\t\t\t\t\tgoto bad;\n\t\t\t}\n\t\t\tif (TIFFFieldSet(tif,FIELD_TRANSFERFUNCTION))\n\t\t\t{\n\t\t\t\tif (!TIFFWriteDirectoryTagTransferfunction(tif,&ndir,dir))\n\t\t\t\t\tgoto bad;\n\t\t\t}\n\t\t\tif (TIFFFieldSet(tif,FIELD_INKNAMES))\n\t\t\t{\n\t\t\t\tif (!TIFFWriteDirectoryTagAscii(tif,&ndir,dir,TIFFTAG_INKNAMES,tif->tif_dir.td_inknameslen,tif->tif_dir.td_inknames))\n\t\t\t\t\tgoto bad;\n\t\t\t}\n\t\t\tif (TIFFFieldSet(tif,FIELD_SUBIFD))\n\t\t\t{\n\t\t\t\tif (!TIFFWriteDirectoryTagSubifd(tif,&ndir,dir))\n\t\t\t\t\tgoto bad;\n\t\t\t}\n\t\t\t{\n\t\t\t\tuint32 n;\n\t\t\t\tfor (n=0; n<tif->tif_nfields; n++) {\n\t\t\t\t\tconst TIFFField* o;\n\t\t\t\t\to = tif->tif_fields[n];\n\t\t\t\t\tif ((o->field_bit>=FIELD_CODEC)&&(TIFFFieldSet(tif,o->field_bit)))\n\t\t\t\t\t{\n\t\t\t\t\t\tswitch (o->get_field_type)\n\t\t\t\t\t\t{\n\t\t\t\t\t\t\tcase TIFF_SETGET_ASCII:\n\t\t\t\t\t\t\t\t{\n\t\t\t\t\t\t\t\t\tuint32 pa;\n\t\t\t\t\t\t\t\t\tchar* pb;\n\t\t\t\t\t\t\t\t\tassert(o->field_type==TIFF_ASCII);\n\t\t\t\t\t\t\t\t\tassert(o->field_readcount==TIFF_VARIABLE);\n\t\t\t\t\t\t\t\t\tassert(o->field_passcount==0);\n\t\t\t\t\t\t\t\t\tTIFFGetField(tif,o->field_tag,&pb);\n\t\t\t\t\t\t\t\t\tpa=(uint32)(strlen(pb));\n\t\t\t\t\t\t\t\t\tif (!TIFFWriteDirectoryTagAscii(tif,&ndir,dir,(uint16)o->field_tag,pa,pb))\n\t\t\t\t\t\t\t\t\t\tgoto bad;\n\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\t\tcase TIFF_SETGET_UINT16:\n\t\t\t\t\t\t\t\t{\n\t\t\t\t\t\t\t\t\tuint16 p;\n\t\t\t\t\t\t\t\t\tassert(o->field_type==TIFF_SHORT);\n\t\t\t\t\t\t\t\t\tassert(o->field_readcount==1);\n\t\t\t\t\t\t\t\t\tassert(o->field_passcount==0);\n\t\t\t\t\t\t\t\t\tTIFFGetField(tif,o->field_tag,&p);\n\t\t\t\t\t\t\t\t\tif (!TIFFWriteDirectoryTagShort(tif,&ndir,dir,(uint16)o->field_tag,p))\n\t\t\t\t\t\t\t\t\t\tgoto bad;\n\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\t\tcase TIFF_SETGET_UINT32:\n\t\t\t\t\t\t\t\t{\n\t\t\t\t\t\t\t\t\tuint32 p;\n\t\t\t\t\t\t\t\t\tassert(o->field_type==TIFF_LONG);\n\t\t\t\t\t\t\t\t\tassert(o->field_readcount==1);\n\t\t\t\t\t\t\t\t\tassert(o->field_passcount==0);\n\t\t\t\t\t\t\t\t\tTIFFGetField(tif,o->field_tag,&p);\n\t\t\t\t\t\t\t\t\tif (!TIFFWriteDirectoryTagLong(tif,&ndir,dir,(uint16)o->field_tag,p))\n\t\t\t\t\t\t\t\t\t\tgoto bad;\n\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\t\tcase TIFF_SETGET_C32_UINT8:\n\t\t\t\t\t\t\t\t{\n\t\t\t\t\t\t\t\t\tuint32 pa;\n\t\t\t\t\t\t\t\t\tvoid* pb;\n\t\t\t\t\t\t\t\t\tassert(o->field_type==TIFF_UNDEFINED);\n\t\t\t\t\t\t\t\t\tassert(o->field_readcount==TIFF_VARIABLE2);\n\t\t\t\t\t\t\t\t\tassert(o->field_passcount==1);\n\t\t\t\t\t\t\t\t\tTIFFGetField(tif,o->field_tag,&pa,&pb);\n\t\t\t\t\t\t\t\t\tif (!TIFFWriteDirectoryTagUndefinedArray(tif,&ndir,dir,(uint16)o->field_tag,pa,pb))\n\t\t\t\t\t\t\t\t\t\tgoto bad;\n\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\t\tdefault:\n\t\t\t\t\t\t\t\tTIFFErrorExt(tif->tif_clientdata,module,\n\t\t\t\t\t\t\t\t "Cannot write tag %d (%s)",\n\t\t\t\t\t\t\t\t TIFFFieldTag(o),\n o->field_name ? o->field_name : "unknown");\n\t\t\t\t\t\t\t\tgoto bad;\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t\tfor (m=0; m<(uint32)(tif->tif_dir.td_customValueCount); m++)\n\t\t{\n uint16 tag = (uint16)tif->tif_dir.td_customValues[m].info->field_tag;\n uint32 count = tif->tif_dir.td_customValues[m].count;\n\t\t\tswitch (tif->tif_dir.td_customValues[m].info->field_type)\n\t\t\t{\n\t\t\t\tcase TIFF_ASCII:\n\t\t\t\t\tif (!TIFFWriteDirectoryTagAscii(tif,&ndir,dir,tag,count,tif->tif_dir.td_customValues[m].value))\n\t\t\t\t\t\tgoto bad;\n\t\t\t\t\tbreak;\n\t\t\t\tcase TIFF_UNDEFINED:\n\t\t\t\t\tif (!TIFFWriteDirectoryTagUndefinedArray(tif,&ndir,dir,tag,count,tif->tif_dir.td_customValues[m].value))\n\t\t\t\t\t\tgoto bad;\n\t\t\t\t\tbreak;\n\t\t\t\tcase TIFF_BYTE:\n\t\t\t\t\tif (!TIFFWriteDirectoryTagByteArray(tif,&ndir,dir,tag,count,tif->tif_dir.td_customValues[m].value))\n\t\t\t\t\t\tgoto bad;\n\t\t\t\t\tbreak;\n\t\t\t\tcase TIFF_SBYTE:\n\t\t\t\t\tif (!TIFFWriteDirectoryTagSbyteArray(tif,&ndir,dir,tag,count,tif->tif_dir.td_customValues[m].value))\n\t\t\t\t\t\tgoto bad;\n\t\t\t\t\tbreak;\n\t\t\t\tcase TIFF_SHORT:\n\t\t\t\t\tif (!TIFFWriteDirectoryTagShortArray(tif,&ndir,dir,tag,count,tif->tif_dir.td_customValues[m].value))\n\t\t\t\t\t\tgoto bad;\n\t\t\t\t\tbreak;\n\t\t\t\tcase TIFF_SSHORT:\n\t\t\t\t\tif (!TIFFWriteDirectoryTagSshortArray(tif,&ndir,dir,tag,count,tif->tif_dir.td_customValues[m].value))\n\t\t\t\t\t\tgoto bad;\n\t\t\t\t\tbreak;\n\t\t\t\tcase TIFF_LONG:\n\t\t\t\t\tif (!TIFFWriteDirectoryTagLongArray(tif,&ndir,dir,tag,count,tif->tif_dir.td_customValues[m].value))\n\t\t\t\t\t\tgoto bad;\n\t\t\t\t\tbreak;\n\t\t\t\tcase TIFF_SLONG:\n\t\t\t\t\tif (!TIFFWriteDirectoryTagSlongArray(tif,&ndir,dir,tag,count,tif->tif_dir.td_customValues[m].value))\n\t\t\t\t\t\tgoto bad;\n\t\t\t\t\tbreak;\n\t\t\t\tcase TIFF_LONG8:\n\t\t\t\t\tif (!TIFFWriteDirectoryTagLong8Array(tif,&ndir,dir,tag,count,tif->tif_dir.td_customValues[m].value))\n\t\t\t\t\t\tgoto bad;\n\t\t\t\t\tbreak;\n\t\t\t\tcase TIFF_SLONG8:\n\t\t\t\t\tif (!TIFFWriteDirectoryTagSlong8Array(tif,&ndir,dir,tag,count,tif->tif_dir.td_customValues[m].value))\n\t\t\t\t\t\tgoto bad;\n\t\t\t\t\tbreak;\n\t\t\t\tcase TIFF_RATIONAL:\n\t\t\t\t\tif (!TIFFWriteDirectoryTagRationalArray(tif,&ndir,dir,tag,count,tif->tif_dir.td_customValues[m].value))\n\t\t\t\t\t\tgoto bad;\n\t\t\t\t\tbreak;\n\t\t\t\tcase TIFF_SRATIONAL:\n\t\t\t\t\tif (!TIFFWriteDirectoryTagSrationalArray(tif,&ndir,dir,tag,count,tif->tif_dir.td_customValues[m].value))\n\t\t\t\t\t\tgoto bad;\n\t\t\t\t\tbreak;\n\t\t\t\tcase TIFF_FLOAT:\n\t\t\t\t\tif (!TIFFWriteDirectoryTagFloatArray(tif,&ndir,dir,tag,count,tif->tif_dir.td_customValues[m].value))\n\t\t\t\t\t\tgoto bad;\n\t\t\t\t\tbreak;\n\t\t\t\tcase TIFF_DOUBLE:\n\t\t\t\t\tif (!TIFFWriteDirectoryTagDoubleArray(tif,&ndir,dir,tag,count,tif->tif_dir.td_customValues[m].value))\n\t\t\t\t\t\tgoto bad;\n\t\t\t\t\tbreak;\n\t\t\t\tcase TIFF_IFD:\n\t\t\t\t\tif (!TIFFWriteDirectoryTagIfdArray(tif,&ndir,dir,tag,count,tif->tif_dir.td_customValues[m].value))\n\t\t\t\t\t\tgoto bad;\n\t\t\t\t\tbreak;\n\t\t\t\tcase TIFF_IFD8:\n\t\t\t\t\tif (!TIFFWriteDirectoryTagIfdIfd8Array(tif,&ndir,dir,tag,count,tif->tif_dir.td_customValues[m].value))\n\t\t\t\t\t\tgoto bad;\n\t\t\t\t\tbreak;\n\t\t\t\tdefault:\n\t\t\t\t\tassert(0);\n\t\t\t\t\tbreak;\n\t\t\t}\n\t\t}\n\t\tif (dir!=NULL)\n\t\t\tbreak;\n\t\tdir=_TIFFmalloc(ndir*sizeof(TIFFDirEntry));\n\t\tif (dir==NULL)\n\t\t{\n\t\t\tTIFFErrorExt(tif->tif_clientdata,module,"Out of memory");\n\t\t\tgoto bad;\n\t\t}\n\t\tif (isimage)\n\t\t{\n\t\t\tif ((tif->tif_diroff==0)&&(!TIFFLinkDirectory(tif)))\n\t\t\t\tgoto bad;\n\t\t}\n\t\telse\n\t\t\ttif->tif_diroff=(TIFFSeekFile(tif,0,SEEK_END)+1)&(~((toff_t)1));\n\t\tif (pdiroff!=NULL)\n\t\t\t*pdiroff=tif->tif_diroff;\n\t\tif (!(tif->tif_flags&TIFF_BIGTIFF))\n\t\t\tdirsize=2+ndir*12+4;\n\t\telse\n\t\t\tdirsize=8+ndir*20+8;\n\t\ttif->tif_dataoff=tif->tif_diroff+dirsize;\n\t\tif (!(tif->tif_flags&TIFF_BIGTIFF))\n\t\t\ttif->tif_dataoff=(uint32)tif->tif_dataoff;\n\t\tif ((tif->tif_dataoff<tif->tif_diroff)||(tif->tif_dataoff<(uint64)dirsize))\n\t\t{\n\t\t\tTIFFErrorExt(tif->tif_clientdata,module,"Maximum TIFF file size exceeded");\n\t\t\tgoto bad;\n\t\t}\n\t\tif (tif->tif_dataoff&1)\n\t\t\ttif->tif_dataoff++;\n\t\tif (isimage)\n\t\t\ttif->tif_curdir++;\n\t}\n\tif (isimage)\n\t{\n\t\tif (TIFFFieldSet(tif,FIELD_SUBIFD)&&(tif->tif_subifdoff==0))\n\t\t{\n\t\t\tuint32 na;\n\t\t\tTIFFDirEntry* nb;\n\t\t\tfor (na=0, nb=dir; ; na++, nb++)\n\t\t\t{\n\t\t\t\tif( na == ndir )\n {\n TIFFErrorExt(tif->tif_clientdata,module,\n "Cannot find SubIFD tag");\n goto bad;\n }\n\t\t\t\tif (nb->tdir_tag==TIFFTAG_SUBIFD)\n\t\t\t\t\tbreak;\n\t\t\t}\n\t\t\tif (!(tif->tif_flags&TIFF_BIGTIFF))\n\t\t\t\ttif->tif_subifdoff=tif->tif_diroff+2+na*12+8;\n\t\t\telse\n\t\t\t\ttif->tif_subifdoff=tif->tif_diroff+8+na*20+12;\n\t\t}\n\t}\n\tdirmem=_TIFFmalloc(dirsize);\n\tif (dirmem==NULL)\n\t{\n\t\tTIFFErrorExt(tif->tif_clientdata,module,"Out of memory");\n\t\tgoto bad;\n\t}\n\tif (!(tif->tif_flags&TIFF_BIGTIFF))\n\t{\n\t\tuint8* n;\n\t\tuint32 nTmp;\n\t\tTIFFDirEntry* o;\n\t\tn=dirmem;\n\t\t*(uint16*)n=(uint16)ndir;\n\t\tif (tif->tif_flags&TIFF_SWAB)\n\t\t\tTIFFSwabShort((uint16*)n);\n\t\tn+=2;\n\t\to=dir;\n\t\tfor (m=0; m<ndir; m++)\n\t\t{\n\t\t\t*(uint16*)n=o->tdir_tag;\n\t\t\tif (tif->tif_flags&TIFF_SWAB)\n\t\t\t\tTIFFSwabShort((uint16*)n);\n\t\t\tn+=2;\n\t\t\t*(uint16*)n=o->tdir_type;\n\t\t\tif (tif->tif_flags&TIFF_SWAB)\n\t\t\t\tTIFFSwabShort((uint16*)n);\n\t\t\tn+=2;\n\t\t\tnTmp = (uint32)o->tdir_count;\n\t\t\t_TIFFmemcpy(n,&nTmp,4);\n\t\t\tif (tif->tif_flags&TIFF_SWAB)\n\t\t\t\tTIFFSwabLong((uint32*)n);\n\t\t\tn+=4;\n\t\t\t_TIFFmemcpy(n,&o->tdir_offset,4);\n\t\t\tn+=4;\n\t\t\to++;\n\t\t}\n\t\tnTmp = (uint32)tif->tif_nextdiroff;\n\t\tif (tif->tif_flags&TIFF_SWAB)\n\t\t\tTIFFSwabLong(&nTmp);\n\t\t_TIFFmemcpy(n,&nTmp,4);\n\t}\n\telse\n\t{\n\t\tuint8* n;\n\t\tTIFFDirEntry* o;\n\t\tn=dirmem;\n\t\t*(uint64*)n=ndir;\n\t\tif (tif->tif_flags&TIFF_SWAB)\n\t\t\tTIFFSwabLong8((uint64*)n);\n\t\tn+=8;\n\t\to=dir;\n\t\tfor (m=0; m<ndir; m++)\n\t\t{\n\t\t\t*(uint16*)n=o->tdir_tag;\n\t\t\tif (tif->tif_flags&TIFF_SWAB)\n\t\t\t\tTIFFSwabShort((uint16*)n);\n\t\t\tn+=2;\n\t\t\t*(uint16*)n=o->tdir_type;\n\t\t\tif (tif->tif_flags&TIFF_SWAB)\n\t\t\t\tTIFFSwabShort((uint16*)n);\n\t\t\tn+=2;\n\t\t\t_TIFFmemcpy(n,&o->tdir_count,8);\n\t\t\tif (tif->tif_flags&TIFF_SWAB)\n\t\t\t\tTIFFSwabLong8((uint64*)n);\n\t\t\tn+=8;\n\t\t\t_TIFFmemcpy(n,&o->tdir_offset,8);\n\t\t\tn+=8;\n\t\t\to++;\n\t\t}\n\t\t_TIFFmemcpy(n,&tif->tif_nextdiroff,8);\n\t\tif (tif->tif_flags&TIFF_SWAB)\n\t\t\tTIFFSwabLong8((uint64*)n);\n\t}\n\t_TIFFfree(dir);\n\tdir=NULL;\n\tif (!SeekOK(tif,tif->tif_diroff))\n\t{\n\t\tTIFFErrorExt(tif->tif_clientdata,module,"IO error writing directory");\n\t\tgoto bad;\n\t}\n\tif (!WriteOK(tif,dirmem,(tmsize_t)dirsize))\n\t{\n\t\tTIFFErrorExt(tif->tif_clientdata,module,"IO error writing directory");\n\t\tgoto bad;\n\t}\n\t_TIFFfree(dirmem);\n\tif (imagedone)\n\t{\n\t\tTIFFFreeDirectory(tif);\n\t\ttif->tif_flags &= ~TIFF_DIRTYDIRECT;\n\t\ttif->tif_flags &= ~TIFF_DIRTYSTRIP;\n\t\t(*tif->tif_cleanup)(tif);\n\t\tTIFFCreateDirectory(tif);\n\t}\n\treturn(1);\nbad:\n\tif (dir!=NULL)\n\t\t_TIFFfree(dir);\n\tif (dirmem!=NULL)\n\t\t_TIFFfree(dirmem);\n\treturn(0);\n}', 'static int\nTIFFWriteDirectoryTagLongLong8Array(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, uint64* value)\n{\n static const char module[] = "TIFFWriteDirectoryTagLongLong8Array";\n int o;\n int write_aslong4;\n if (dir==NULL)\n {\n (*ndir)++;\n return(1);\n }\n if( tif->tif_flags&TIFF_BIGTIFF )\n {\n int write_aslong8 = 1;\n if( count > 1 && tag == TIFFTAG_STRIPBYTECOUNTS )\n {\n write_aslong8 = WriteAsLong8(tif, TIFFStripSize64(tif));\n }\n else if( count > 1 && tag == TIFFTAG_TILEBYTECOUNTS )\n {\n write_aslong8 = WriteAsLong8(tif, TIFFTileSize64(tif));\n }\n if( write_aslong8 )\n {\n return TIFFWriteDirectoryTagCheckedLong8Array(tif,ndir,dir,\n tag,count,value);\n }\n }\n write_aslong4 = 1;\n if( count > 1 && tag == TIFFTAG_STRIPBYTECOUNTS )\n {\n write_aslong4 = WriteAsLong4(tif, TIFFStripSize64(tif));\n }\n else if( count > 1 && tag == TIFFTAG_TILEBYTECOUNTS )\n {\n write_aslong4 = WriteAsLong4(tif, TIFFTileSize64(tif));\n }\n if( write_aslong4 )\n {\n uint32* p = _TIFFmalloc(count*sizeof(uint32));\n uint32* q;\n uint64* ma;\n uint32 mb;\n if (p==NULL)\n {\n TIFFErrorExt(tif->tif_clientdata,module,"Out of memory");\n return(0);\n }\n for (q=p, ma=value, mb=0; mb<count; ma++, mb++, q++)\n {\n if (*ma>0xFFFFFFFF)\n {\n TIFFErrorExt(tif->tif_clientdata,module,\n "Attempt to write value larger than 0xFFFFFFFF in LONG array.");\n _TIFFfree(p);\n return(0);\n }\n *q= (uint32)(*ma);\n }\n o=TIFFWriteDirectoryTagCheckedLongArray(tif,ndir,dir,tag,count,p);\n _TIFFfree(p);\n }\n else\n {\n uint16* p = _TIFFmalloc(count*sizeof(uint16));\n uint16* q;\n uint64* ma;\n uint32 mb;\n if (p==NULL)\n {\n TIFFErrorExt(tif->tif_clientdata,module,"Out of memory");\n return(0);\n }\n for (q=p, ma=value, mb=0; mb<count; ma++, mb++, q++)\n {\n if (*ma>0xFFFF)\n {\n TIFFErrorExt(tif->tif_clientdata,module,\n "Attempt to write value larger than 0xFFFF in SHORT array.");\n _TIFFfree(p);\n return(0);\n }\n *q= (uint16)(*ma);\n }\n o=TIFFWriteDirectoryTagCheckedShortArray(tif,ndir,dir,tag,count,p);\n _TIFFfree(p);\n }\n return(o);\n}', 'void*\n_TIFFmalloc(tmsize_t s)\n{\n if (s == 0)\n return ((void *) NULL);\n\treturn (malloc((size_t) s));\n}', 'static int\nTIFFWriteDirectoryTagCheckedLongArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, uint32* value)\n{\n\tassert(count<0x40000000);\n\tassert(sizeof(uint32)==4);\n\tif (tif->tif_flags&TIFF_SWAB)\n\t\tTIFFSwabArrayOfLong(value,count);\n\treturn(TIFFWriteDirectoryTagData(tif,ndir,dir,tag,TIFF_LONG,count,count*4,value));\n}', 'void\nTIFFSwabArrayOfLong(register uint32* lp, tmsize_t n)\n{\n\tregister unsigned char *cp;\n\tregister unsigned char t;\n\tassert(sizeof(uint32)==4);\n\twhile (n-- > 0) {\n\t\tcp = (unsigned char *)lp;\n\t\tt = cp[3]; cp[3] = cp[0]; cp[0] = t;\n\t\tt = cp[2]; cp[2] = cp[1]; cp[1] = t;\n\t\tlp++;\n\t}\n}'] |
23,177 | 0 | https://github.com/libav/libav/blob/688417399c69aadd4c287bdb0dec82ef8799011c/libavcodec/imgconvert.c/#L46 | void avcodec_get_chroma_sub_sample(enum AVPixelFormat pix_fmt, int *h_shift, int *v_shift)
{
const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt);
*h_shift = desc->log2_chroma_w;
*v_shift = desc->log2_chroma_h;
} | ['void avcodec_get_chroma_sub_sample(enum AVPixelFormat pix_fmt, int *h_shift, int *v_shift)\n{\n const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt);\n *h_shift = desc->log2_chroma_w;\n *v_shift = desc->log2_chroma_h;\n}', 'const AVPixFmtDescriptor *av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)\n{\n if (pix_fmt < 0 || pix_fmt >= AV_PIX_FMT_NB)\n return NULL;\n return &av_pix_fmt_descriptors[pix_fmt];\n}'] |
23,178 | 0 | https://github.com/libav/libav/blob/688417399c69aadd4c287bdb0dec82ef8799011c/libavcodec/hevcdsp_template.c/#L907 | PUT_HEVC_QPEL_HV(3, 1) | ['QPEL(16)', 'PUT_HEVC_QPEL_HV(3, 1)'] |
23,179 | 0 | https://github.com/libav/libav/blob/fa0912fe50e59df72b7bf81f8838d2c6d9780343/libavcodec/huffyuv.c/#L241 | static int generate_bits_table(uint32_t *dst, uint8_t *len_table){
int len, index;
uint32_t bits=0;
for(len=32; len>0; len--){
for(index=0; index<256; index++){
if(len_table[index]==len)
dst[index]= bits++;
}
if(bits & 1){
av_log(NULL, AV_LOG_ERROR, "Error generating huffman table\n");
return -1;
}
bits >>= 1;
}
return 0;
} | ['static int read_huffman_tables(HYuvContext *s, uint8_t *src, int length){\n GetBitContext gb;\n int i;\n init_get_bits(&gb, src, length*8);\n for(i=0; i<3; i++){\n if(read_len_table(s->len[i], &gb)<0)\n return -1;\n if(generate_bits_table(s->bits[i], s->len[i])<0){\n return -1;\n }\n#if 0\nfor(j=0; j<256; j++){\nprintf("%6X, %2d, %3d\\n", s->bits[i][j], s->len[i][j], j);\n}\n#endif\n free_vlc(&s->vlc[i]);\n init_vlc(&s->vlc[i], VLC_BITS, 256, s->len[i], 1, 1, s->bits[i], 4, 4, 0);\n }\n generate_joint_tables(s);\n return (get_bits_count(&gb)+7)/8;\n}', 'static int generate_bits_table(uint32_t *dst, uint8_t *len_table){\n int len, index;\n uint32_t bits=0;\n for(len=32; len>0; len--){\n for(index=0; index<256; index++){\n if(len_table[index]==len)\n dst[index]= bits++;\n }\n if(bits & 1){\n av_log(NULL, AV_LOG_ERROR, "Error generating huffman table\\n");\n return -1;\n }\n bits >>= 1;\n }\n return 0;\n}'] |
23,180 | 0 | https://github.com/openssl/openssl/blob/ff80280b017ffcb045141a7863013c4af56e26fc/crypto/lhash/lhash.c/#L368 | static void contract(LHASH *lh)
{
LHASH_NODE **n,*n1,*np;
np=lh->b[lh->p+lh->pmax-1];
lh->b[lh->p+lh->pmax-1]=NULL;
if (lh->p == 0)
{
n=(LHASH_NODE **)OPENSSL_realloc(lh->b,
(unsigned int)(sizeof(LHASH_NODE *)*lh->pmax));
if (n == NULL)
{
lh->error++;
return;
}
lh->num_contract_reallocs++;
lh->num_alloc_nodes/=2;
lh->pmax/=2;
lh->p=lh->pmax-1;
lh->b=n;
}
else
lh->p--;
lh->num_nodes--;
lh->num_contracts++;
n1=lh->b[(int)lh->p];
if (n1 == NULL)
lh->b[(int)lh->p]=np;
else
{
while (n1->next != NULL)
n1=n1->next;
n1->next=np;
}
} | ['static APP_INFO *pop_info(void)\n\t{\n\tAPP_INFO tmp;\n\tAPP_INFO *ret = NULL;\n\tif (amih != NULL)\n\t\t{\n\t\tCRYPTO_THREADID_set(&tmp.threadid);\n\t\tif ((ret=(APP_INFO *)lh_delete(amih,&tmp)) != NULL)\n\t\t\t{\n\t\t\tAPP_INFO *next=ret->next;\n\t\t\tif (next != NULL)\n\t\t\t\t{\n\t\t\t\tnext->references++;\n\t\t\t\tlh_insert(amih,(char *)next);\n\t\t\t\t}\n#ifdef LEVITTE_DEBUG_MEM\n\t\t\tif (CRYPTO_THREADID_cmp(&ret->threadid, &tmp.threadid))\n\t\t\t\t{\n\t\t\t\tfprintf(stderr, "pop_info(): deleted info has other thread ID (%lu) than the current thread (%lu)!!!!\\n",\n\t\t\t\t\tCRYPTO_THREADID_hash(&ret->threadid),\n\t\t\t\t\tCRYPTO_THREADID_hash(&tmp.threadid));\n\t\t\t\tabort();\n\t\t\t\t}\n#endif\n\t\t\tif (--(ret->references) <= 0)\n\t\t\t\t{\n\t\t\t\tret->next = NULL;\n\t\t\t\tif (next != NULL)\n\t\t\t\t\tnext->references--;\n\t\t\t\tOPENSSL_free(ret);\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\treturn(ret);\n\t}', 'void *lh_delete(LHASH *lh, const void *data)\n\t{\n\tunsigned long hash;\n\tLHASH_NODE *nn,**rn;\n\tvoid *ret;\n\tlh->error=0;\n\trn=getrn(lh,data,&hash);\n\tif (*rn == NULL)\n\t\t{\n\t\tlh->num_no_delete++;\n\t\treturn(NULL);\n\t\t}\n\telse\n\t\t{\n\t\tnn= *rn;\n\t\t*rn=nn->next;\n\t\tret=nn->data;\n\t\tOPENSSL_free(nn);\n\t\tlh->num_delete++;\n\t\t}\n\tlh->num_items--;\n\tif ((lh->num_nodes > MIN_NODES) &&\n\t\t(lh->down_load >= (lh->num_items*LH_LOAD_MULT/lh->num_nodes)))\n\t\tcontract(lh);\n\treturn(ret);\n\t}', 'static void contract(LHASH *lh)\n\t{\n\tLHASH_NODE **n,*n1,*np;\n\tnp=lh->b[lh->p+lh->pmax-1];\n\tlh->b[lh->p+lh->pmax-1]=NULL;\n\tif (lh->p == 0)\n\t\t{\n\t\tn=(LHASH_NODE **)OPENSSL_realloc(lh->b,\n\t\t\t(unsigned int)(sizeof(LHASH_NODE *)*lh->pmax));\n\t\tif (n == NULL)\n\t\t\t{\n\t\t\tlh->error++;\n\t\t\treturn;\n\t\t\t}\n\t\tlh->num_contract_reallocs++;\n\t\tlh->num_alloc_nodes/=2;\n\t\tlh->pmax/=2;\n\t\tlh->p=lh->pmax-1;\n\t\tlh->b=n;\n\t\t}\n\telse\n\t\tlh->p--;\n\tlh->num_nodes--;\n\tlh->num_contracts++;\n\tn1=lh->b[(int)lh->p];\n\tif (n1 == NULL)\n\t\tlh->b[(int)lh->p]=np;\n\telse\n\t\t{\n\t\twhile (n1->next != NULL)\n\t\t\tn1=n1->next;\n\t\tn1->next=np;\n\t\t}\n\t}'] |
23,181 | 0 | https://github.com/openssl/openssl/blob/4b8515baa6edef1a771f9e4e3fbc0395b4a629e8/crypto/bn/bn_ctx.c/#L273 | static unsigned int BN_STACK_pop(BN_STACK *st)
{
return st->indexes[--(st->depth)];
} | ['int ec_precompute_mont_data(EC_GROUP *group)\n{\n BN_CTX *ctx = BN_CTX_new();\n int ret = 0;\n BN_MONT_CTX_free(group->mont_data);\n group->mont_data = NULL;\n if (ctx == NULL)\n goto err;\n group->mont_data = BN_MONT_CTX_new();\n if (group->mont_data == NULL)\n goto err;\n if (!BN_MONT_CTX_set(group->mont_data, group->order, ctx)) {\n BN_MONT_CTX_free(group->mont_data);\n group->mont_data = NULL;\n goto err;\n }\n ret = 1;\n err:\n BN_CTX_free(ctx);\n return ret;\n}', 'int BN_MONT_CTX_set(BN_MONT_CTX *mont, const BIGNUM *mod, BN_CTX *ctx)\n{\n int ret = 0;\n BIGNUM *Ri, *R;\n if (BN_is_zero(mod))\n return 0;\n BN_CTX_start(ctx);\n if ((Ri = BN_CTX_get(ctx)) == NULL)\n goto err;\n R = &(mont->RR);\n if (!BN_copy(&(mont->N), mod))\n goto err;\n mont->N.neg = 0;\n#ifdef MONT_WORD\n {\n BIGNUM tmod;\n BN_ULONG buf[2];\n bn_init(&tmod);\n tmod.d = buf;\n tmod.dmax = 2;\n tmod.neg = 0;\n mont->ri = (BN_num_bits(mod) + (BN_BITS2 - 1)) / BN_BITS2 * BN_BITS2;\n# if defined(OPENSSL_BN_ASM_MONT) && (BN_BITS2<=32)\n BN_zero(R);\n if (!(BN_set_bit(R, 2 * BN_BITS2)))\n goto err;\n tmod.top = 0;\n if ((buf[0] = mod->d[0]))\n tmod.top = 1;\n if ((buf[1] = mod->top > 1 ? mod->d[1] : 0))\n tmod.top = 2;\n if ((BN_mod_inverse(Ri, R, &tmod, ctx)) == NULL)\n goto err;\n if (!BN_lshift(Ri, Ri, 2 * BN_BITS2))\n goto err;\n if (!BN_is_zero(Ri)) {\n if (!BN_sub_word(Ri, 1))\n goto err;\n } else {\n if (bn_expand(Ri, (int)sizeof(BN_ULONG) * 2) == NULL)\n goto err;\n Ri->neg = 0;\n Ri->d[0] = BN_MASK2;\n Ri->d[1] = BN_MASK2;\n Ri->top = 2;\n }\n if (!BN_div(Ri, NULL, Ri, &tmod, ctx))\n goto err;\n mont->n0[0] = (Ri->top > 0) ? Ri->d[0] : 0;\n mont->n0[1] = (Ri->top > 1) ? Ri->d[1] : 0;\n# else\n BN_zero(R);\n if (!(BN_set_bit(R, BN_BITS2)))\n goto err;\n buf[0] = mod->d[0];\n buf[1] = 0;\n tmod.top = buf[0] != 0 ? 1 : 0;\n if ((BN_mod_inverse(Ri, R, &tmod, ctx)) == NULL)\n goto err;\n if (!BN_lshift(Ri, Ri, BN_BITS2))\n goto err;\n if (!BN_is_zero(Ri)) {\n if (!BN_sub_word(Ri, 1))\n goto err;\n } else {\n if (!BN_set_word(Ri, BN_MASK2))\n goto err;\n }\n if (!BN_div(Ri, NULL, Ri, &tmod, ctx))\n goto err;\n mont->n0[0] = (Ri->top > 0) ? Ri->d[0] : 0;\n mont->n0[1] = 0;\n# endif\n }\n#else\n {\n mont->ri = BN_num_bits(&mont->N);\n BN_zero(R);\n if (!BN_set_bit(R, mont->ri))\n goto err;\n if ((BN_mod_inverse(Ri, R, &mont->N, ctx)) == NULL)\n goto err;\n if (!BN_lshift(Ri, Ri, mont->ri))\n goto err;\n if (!BN_sub_word(Ri, 1))\n goto err;\n if (!BN_div(&(mont->Ni), NULL, Ri, &mont->N, ctx))\n goto err;\n }\n#endif\n BN_zero(&(mont->RR));\n if (!BN_set_bit(&(mont->RR), mont->ri * 2))\n goto err;\n if (!BN_mod(&(mont->RR), &(mont->RR), &(mont->N), ctx))\n goto err;\n ret = 1;\n err:\n BN_CTX_end(ctx);\n return ret;\n}', '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}', '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}'] |
23,182 | 0 | https://github.com/libav/libav/blob/0ca0924c10d9617a5793964bf79655424ef32b68/libavcodec/vp3.c/#L816 | static int unpack_vectors(Vp3DecodeContext *s, GetBitContext *gb)
{
int j, k, sb_x, sb_y;
int coding_mode;
int motion_x[4];
int motion_y[4];
int last_motion_x = 0;
int last_motion_y = 0;
int prior_last_motion_x = 0;
int prior_last_motion_y = 0;
int current_macroblock;
int current_fragment;
int frag;
if (s->keyframe)
return 0;
coding_mode = get_bits1(gb);
for (sb_y = 0; sb_y < s->y_superblock_height; sb_y++) {
for (sb_x = 0; sb_x < s->y_superblock_width; sb_x++) {
if (get_bits_left(gb) <= 0)
return -1;
for (j = 0; j < 4; j++) {
int mb_x = 2 * sb_x + (j >> 1);
int mb_y = 2 * sb_y + (((j >> 1) + j) & 1);
current_macroblock = mb_y * s->macroblock_width + mb_x;
if (mb_x >= s->macroblock_width ||
mb_y >= s->macroblock_height ||
s->macroblock_coding[current_macroblock] == MODE_COPY)
continue;
switch (s->macroblock_coding[current_macroblock]) {
case MODE_INTER_PLUS_MV:
case MODE_GOLDEN_MV:
if (coding_mode == 0) {
motion_x[0] = motion_vector_table[get_vlc2(gb, s->motion_vector_vlc.table, 6, 2)];
motion_y[0] = motion_vector_table[get_vlc2(gb, s->motion_vector_vlc.table, 6, 2)];
} else {
motion_x[0] = fixed_motion_vector_table[get_bits(gb, 6)];
motion_y[0] = fixed_motion_vector_table[get_bits(gb, 6)];
}
if (s->macroblock_coding[current_macroblock] == MODE_INTER_PLUS_MV) {
prior_last_motion_x = last_motion_x;
prior_last_motion_y = last_motion_y;
last_motion_x = motion_x[0];
last_motion_y = motion_y[0];
}
break;
case MODE_INTER_FOURMV:
prior_last_motion_x = last_motion_x;
prior_last_motion_y = last_motion_y;
for (k = 0; k < 4; k++) {
current_fragment = BLOCK_Y * s->fragment_width[0] + BLOCK_X;
if (s->all_fragments[current_fragment].coding_method != MODE_COPY) {
if (coding_mode == 0) {
motion_x[k] = motion_vector_table[get_vlc2(gb, s->motion_vector_vlc.table, 6, 2)];
motion_y[k] = motion_vector_table[get_vlc2(gb, s->motion_vector_vlc.table, 6, 2)];
} else {
motion_x[k] = fixed_motion_vector_table[get_bits(gb, 6)];
motion_y[k] = fixed_motion_vector_table[get_bits(gb, 6)];
}
last_motion_x = motion_x[k];
last_motion_y = motion_y[k];
} else {
motion_x[k] = 0;
motion_y[k] = 0;
}
}
break;
case MODE_INTER_LAST_MV:
motion_x[0] = last_motion_x;
motion_y[0] = last_motion_y;
break;
case MODE_INTER_PRIOR_LAST:
motion_x[0] = prior_last_motion_x;
motion_y[0] = prior_last_motion_y;
prior_last_motion_x = last_motion_x;
prior_last_motion_y = last_motion_y;
last_motion_x = motion_x[0];
last_motion_y = motion_y[0];
break;
default:
motion_x[0] = 0;
motion_y[0] = 0;
break;
}
for (k = 0; k < 4; k++) {
current_fragment =
BLOCK_Y * s->fragment_width[0] + BLOCK_X;
if (s->macroblock_coding[current_macroblock] == MODE_INTER_FOURMV) {
s->motion_val[0][current_fragment][0] = motion_x[k];
s->motion_val[0][current_fragment][1] = motion_y[k];
} else {
s->motion_val[0][current_fragment][0] = motion_x[0];
s->motion_val[0][current_fragment][1] = motion_y[0];
}
}
if (s->chroma_y_shift) {
if (s->macroblock_coding[current_macroblock] == MODE_INTER_FOURMV) {
motion_x[0] = RSHIFT(motion_x[0] + motion_x[1] +
motion_x[2] + motion_x[3], 2);
motion_y[0] = RSHIFT(motion_y[0] + motion_y[1] +
motion_y[2] + motion_y[3], 2);
}
motion_x[0] = (motion_x[0] >> 1) | (motion_x[0] & 1);
motion_y[0] = (motion_y[0] >> 1) | (motion_y[0] & 1);
frag = mb_y * s->fragment_width[1] + mb_x;
s->motion_val[1][frag][0] = motion_x[0];
s->motion_val[1][frag][1] = motion_y[0];
} else if (s->chroma_x_shift) {
if (s->macroblock_coding[current_macroblock] == MODE_INTER_FOURMV) {
motion_x[0] = RSHIFT(motion_x[0] + motion_x[1], 1);
motion_y[0] = RSHIFT(motion_y[0] + motion_y[1], 1);
motion_x[1] = RSHIFT(motion_x[2] + motion_x[3], 1);
motion_y[1] = RSHIFT(motion_y[2] + motion_y[3], 1);
} else {
motion_x[1] = motion_x[0];
motion_y[1] = motion_y[0];
}
motion_x[0] = (motion_x[0] >> 1) | (motion_x[0] & 1);
motion_x[1] = (motion_x[1] >> 1) | (motion_x[1] & 1);
frag = 2 * mb_y * s->fragment_width[1] + mb_x;
for (k = 0; k < 2; k++) {
s->motion_val[1][frag][0] = motion_x[k];
s->motion_val[1][frag][1] = motion_y[k];
frag += s->fragment_width[1];
}
} else {
for (k = 0; k < 4; k++) {
frag = BLOCK_Y * s->fragment_width[1] + BLOCK_X;
if (s->macroblock_coding[current_macroblock] == MODE_INTER_FOURMV) {
s->motion_val[1][frag][0] = motion_x[k];
s->motion_val[1][frag][1] = motion_y[k];
} else {
s->motion_val[1][frag][0] = motion_x[0];
s->motion_val[1][frag][1] = motion_y[0];
}
}
}
}
}
}
return 0;
} | ['static int unpack_vectors(Vp3DecodeContext *s, GetBitContext *gb)\n{\n int j, k, sb_x, sb_y;\n int coding_mode;\n int motion_x[4];\n int motion_y[4];\n int last_motion_x = 0;\n int last_motion_y = 0;\n int prior_last_motion_x = 0;\n int prior_last_motion_y = 0;\n int current_macroblock;\n int current_fragment;\n int frag;\n if (s->keyframe)\n return 0;\n coding_mode = get_bits1(gb);\n for (sb_y = 0; sb_y < s->y_superblock_height; sb_y++) {\n for (sb_x = 0; sb_x < s->y_superblock_width; sb_x++) {\n if (get_bits_left(gb) <= 0)\n return -1;\n for (j = 0; j < 4; j++) {\n int mb_x = 2 * sb_x + (j >> 1);\n int mb_y = 2 * sb_y + (((j >> 1) + j) & 1);\n current_macroblock = mb_y * s->macroblock_width + mb_x;\n if (mb_x >= s->macroblock_width ||\n mb_y >= s->macroblock_height ||\n s->macroblock_coding[current_macroblock] == MODE_COPY)\n continue;\n switch (s->macroblock_coding[current_macroblock]) {\n case MODE_INTER_PLUS_MV:\n case MODE_GOLDEN_MV:\n if (coding_mode == 0) {\n motion_x[0] = motion_vector_table[get_vlc2(gb, s->motion_vector_vlc.table, 6, 2)];\n motion_y[0] = motion_vector_table[get_vlc2(gb, s->motion_vector_vlc.table, 6, 2)];\n } else {\n motion_x[0] = fixed_motion_vector_table[get_bits(gb, 6)];\n motion_y[0] = fixed_motion_vector_table[get_bits(gb, 6)];\n }\n if (s->macroblock_coding[current_macroblock] == MODE_INTER_PLUS_MV) {\n prior_last_motion_x = last_motion_x;\n prior_last_motion_y = last_motion_y;\n last_motion_x = motion_x[0];\n last_motion_y = motion_y[0];\n }\n break;\n case MODE_INTER_FOURMV:\n prior_last_motion_x = last_motion_x;\n prior_last_motion_y = last_motion_y;\n for (k = 0; k < 4; k++) {\n current_fragment = BLOCK_Y * s->fragment_width[0] + BLOCK_X;\n if (s->all_fragments[current_fragment].coding_method != MODE_COPY) {\n if (coding_mode == 0) {\n motion_x[k] = motion_vector_table[get_vlc2(gb, s->motion_vector_vlc.table, 6, 2)];\n motion_y[k] = motion_vector_table[get_vlc2(gb, s->motion_vector_vlc.table, 6, 2)];\n } else {\n motion_x[k] = fixed_motion_vector_table[get_bits(gb, 6)];\n motion_y[k] = fixed_motion_vector_table[get_bits(gb, 6)];\n }\n last_motion_x = motion_x[k];\n last_motion_y = motion_y[k];\n } else {\n motion_x[k] = 0;\n motion_y[k] = 0;\n }\n }\n break;\n case MODE_INTER_LAST_MV:\n motion_x[0] = last_motion_x;\n motion_y[0] = last_motion_y;\n break;\n case MODE_INTER_PRIOR_LAST:\n motion_x[0] = prior_last_motion_x;\n motion_y[0] = prior_last_motion_y;\n prior_last_motion_x = last_motion_x;\n prior_last_motion_y = last_motion_y;\n last_motion_x = motion_x[0];\n last_motion_y = motion_y[0];\n break;\n default:\n motion_x[0] = 0;\n motion_y[0] = 0;\n break;\n }\n for (k = 0; k < 4; k++) {\n current_fragment =\n BLOCK_Y * s->fragment_width[0] + BLOCK_X;\n if (s->macroblock_coding[current_macroblock] == MODE_INTER_FOURMV) {\n s->motion_val[0][current_fragment][0] = motion_x[k];\n s->motion_val[0][current_fragment][1] = motion_y[k];\n } else {\n s->motion_val[0][current_fragment][0] = motion_x[0];\n s->motion_val[0][current_fragment][1] = motion_y[0];\n }\n }\n if (s->chroma_y_shift) {\n if (s->macroblock_coding[current_macroblock] == MODE_INTER_FOURMV) {\n motion_x[0] = RSHIFT(motion_x[0] + motion_x[1] +\n motion_x[2] + motion_x[3], 2);\n motion_y[0] = RSHIFT(motion_y[0] + motion_y[1] +\n motion_y[2] + motion_y[3], 2);\n }\n motion_x[0] = (motion_x[0] >> 1) | (motion_x[0] & 1);\n motion_y[0] = (motion_y[0] >> 1) | (motion_y[0] & 1);\n frag = mb_y * s->fragment_width[1] + mb_x;\n s->motion_val[1][frag][0] = motion_x[0];\n s->motion_val[1][frag][1] = motion_y[0];\n } else if (s->chroma_x_shift) {\n if (s->macroblock_coding[current_macroblock] == MODE_INTER_FOURMV) {\n motion_x[0] = RSHIFT(motion_x[0] + motion_x[1], 1);\n motion_y[0] = RSHIFT(motion_y[0] + motion_y[1], 1);\n motion_x[1] = RSHIFT(motion_x[2] + motion_x[3], 1);\n motion_y[1] = RSHIFT(motion_y[2] + motion_y[3], 1);\n } else {\n motion_x[1] = motion_x[0];\n motion_y[1] = motion_y[0];\n }\n motion_x[0] = (motion_x[0] >> 1) | (motion_x[0] & 1);\n motion_x[1] = (motion_x[1] >> 1) | (motion_x[1] & 1);\n frag = 2 * mb_y * s->fragment_width[1] + mb_x;\n for (k = 0; k < 2; k++) {\n s->motion_val[1][frag][0] = motion_x[k];\n s->motion_val[1][frag][1] = motion_y[k];\n frag += s->fragment_width[1];\n }\n } else {\n for (k = 0; k < 4; k++) {\n frag = BLOCK_Y * s->fragment_width[1] + BLOCK_X;\n if (s->macroblock_coding[current_macroblock] == MODE_INTER_FOURMV) {\n s->motion_val[1][frag][0] = motion_x[k];\n s->motion_val[1][frag][1] = motion_y[k];\n } else {\n s->motion_val[1][frag][0] = motion_x[0];\n s->motion_val[1][frag][1] = motion_y[0];\n }\n }\n }\n }\n }\n }\n return 0;\n}'] |
23,183 | 0 | https://github.com/openssl/openssl/blob/a87228031f8a4e274c2f859a2589dcef2eb7cc58/crypto/bn/bn_ctx.c/#L353 | 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\t{\n\tBN_CTX *ctx;\n\tBN_MONT_CTX *mont;\n\tBIGNUM *tmp;\n\tint ret= -1;\n\tctx = BN_CTX_new();\n\tif (ctx == NULL) goto err;\n\tBN_CTX_start(ctx);\n\ttmp = BN_CTX_get(ctx);\n\tif (dh->priv_key == NULL)\n\t\t{\n\t\tDHerr(DH_F_DH_COMPUTE_KEY,DH_R_NO_PRIVATE_VALUE);\n\t\tgoto err;\n\t\t}\n\tif ((dh->method_mont_p == NULL) && (dh->flags & DH_FLAG_CACHE_MONT_P))\n\t\t{\n\t\tif ((dh->method_mont_p=(char *)BN_MONT_CTX_new()) != NULL)\n\t\t\tif (!BN_MONT_CTX_set((BN_MONT_CTX *)dh->method_mont_p,\n\t\t\t\tdh->p,ctx)) goto err;\n\t\t}\n\tmont=(BN_MONT_CTX *)dh->method_mont_p;\n\tif (!dh->meth->bn_mod_exp(dh, tmp, pub_key, dh->priv_key,dh->p,ctx,mont))\n\t\t{\n\t\tDHerr(DH_F_DH_COMPUTE_KEY,ERR_R_BN_LIB);\n\t\tgoto err;\n\t\t}\n\tret=BN_bn2bin(tmp,key);\nerr:\n\tBN_CTX_end(ctx);\n\tBN_CTX_free(ctx);\n\treturn(ret);\n\t}', 'void BN_CTX_start(BN_CTX *ctx)\n\t{\n\tCTXDBG_ENTRY("BN_CTX_start", ctx);\n\tif(ctx->err_stack || ctx->too_many)\n\t\tctx->err_stack++;\n\telse if(!BN_STACK_push(&ctx->stack, ctx->used))\n\t\t{\n\t\tBNerr(BN_F_BN_CTX_GET,BN_R_TOO_MANY_TEMPORARY_VARIABLES);\n\t\tctx->err_stack++;\n\t\t}\n\tCTXDBG_EXIT(ctx);\n\t}', 'int BN_MONT_CTX_set(BN_MONT_CTX *mont, const BIGNUM *mod, BN_CTX *ctx)\n\t{\n\tint ret = 0;\n\tBIGNUM *Ri,*R;\n\tBN_CTX_start(ctx);\n\tif((Ri = BN_CTX_get(ctx)) == NULL) goto err;\n\tR= &(mont->RR);\n\tBN_copy(&(mont->N),mod);\n\tmont->N.neg = 0;\n#ifdef MONT_WORD\n\t\t{\n\t\tBIGNUM tmod;\n\t\tBN_ULONG buf[2];\n\t\tmont->ri=(BN_num_bits(mod)+(BN_BITS2-1))/BN_BITS2*BN_BITS2;\n\t\tBN_zero(R);\n\t\tif (!(BN_set_bit(R,BN_BITS2))) goto err;\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.dmax=2;\n\t\ttmod.neg=0;\n\t\tif ((BN_mod_inverse(Ri,R,&tmod,ctx)) == NULL)\n\t\t\tgoto err;\n\t\tif (!BN_lshift(Ri,Ri,BN_BITS2)) goto err;\n\t\tif (!BN_is_zero(Ri))\n\t\t\t{\n\t\t\tif (!BN_sub_word(Ri,1)) goto err;\n\t\t\t}\n\t\telse\n\t\t\t{\n\t\t\tif (!BN_set_word(Ri,BN_MASK2)) goto err;\n\t\t\t}\n\t\tif (!BN_div(Ri,NULL,Ri,&tmod,ctx)) goto err;\n\t\tmont->n0 = (Ri->top > 0) ? Ri->d[0] : 0;\n\t\t}\n#else\n\t\t{\n\t\tmont->ri=BN_num_bits(&mont->N);\n\t\tBN_zero(R);\n\t\tif (!BN_set_bit(R,mont->ri)) goto err;\n\t\tif ((BN_mod_inverse(Ri,R,&mont->N,ctx)) == NULL)\n\t\t\tgoto err;\n\t\tif (!BN_lshift(Ri,Ri,mont->ri)) goto err;\n\t\tif (!BN_sub_word(Ri,1)) goto err;\n\t\tif (!BN_div(&(mont->Ni),NULL,Ri,&mont->N,ctx)) goto err;\n\t\t}\n#endif\n\tBN_zero(&(mont->RR));\n\tif (!BN_set_bit(&(mont->RR),mont->ri*2)) goto err;\n\tif (!BN_mod(&(mont->RR),&(mont->RR),&(mont->N),ctx)) goto err;\n\tret = 1;\nerr:\n\tBN_CTX_end(ctx);\n\treturn ret;\n\t}', 'BIGNUM *BN_mod_inverse(BIGNUM *in,\n\tconst BIGNUM *a, const BIGNUM *n, BN_CTX *ctx)\n\t{\n\tBIGNUM *A,*B,*X,*Y,*M,*D,*T,*R=NULL;\n\tBIGNUM *ret=NULL;\n\tint sign;\n\tbn_check_top(a);\n\tbn_check_top(n);\n\tBN_CTX_start(ctx);\n\tA = BN_CTX_get(ctx);\n\tB = BN_CTX_get(ctx);\n\tX = BN_CTX_get(ctx);\n\tD = BN_CTX_get(ctx);\n\tM = BN_CTX_get(ctx);\n\tY = BN_CTX_get(ctx);\n\tT = BN_CTX_get(ctx);\n\tif (T == NULL) goto err;\n\tif (in == NULL)\n\t\tR=BN_new();\n\telse\n\t\tR=in;\n\tif (R == NULL) goto err;\n\tBN_one(X);\n\tBN_zero(Y);\n\tif (BN_copy(B,a) == NULL) goto err;\n\tif (BN_copy(A,n) == NULL) goto err;\n\tA->neg = 0;\n\tif (B->neg || (BN_ucmp(B, A) >= 0))\n\t\t{\n\t\tif (!BN_nnmod(B, B, A, ctx)) goto err;\n\t\t}\n\tsign = -1;\n\tif (BN_is_odd(n) && (BN_num_bits(n) <= (BN_BITS <= 32 ? 450 : 2048)))\n\t\t{\n\t\tint shift;\n\t\twhile (!BN_is_zero(B))\n\t\t\t{\n\t\t\tshift = 0;\n\t\t\twhile (!BN_is_bit_set(B, shift))\n\t\t\t\t{\n\t\t\t\tshift++;\n\t\t\t\tif (BN_is_odd(X))\n\t\t\t\t\t{\n\t\t\t\t\tif (!BN_uadd(X, X, n)) goto err;\n\t\t\t\t\t}\n\t\t\t\tif (!BN_rshift1(X, X)) goto err;\n\t\t\t\t}\n\t\t\tif (shift > 0)\n\t\t\t\t{\n\t\t\t\tif (!BN_rshift(B, B, shift)) goto err;\n\t\t\t\t}\n\t\t\tshift = 0;\n\t\t\twhile (!BN_is_bit_set(A, shift))\n\t\t\t\t{\n\t\t\t\tshift++;\n\t\t\t\tif (BN_is_odd(Y))\n\t\t\t\t\t{\n\t\t\t\t\tif (!BN_uadd(Y, Y, n)) goto err;\n\t\t\t\t\t}\n\t\t\t\tif (!BN_rshift1(Y, Y)) goto err;\n\t\t\t\t}\n\t\t\tif (shift > 0)\n\t\t\t\t{\n\t\t\t\tif (!BN_rshift(A, A, shift)) goto err;\n\t\t\t\t}\n\t\t\tif (BN_ucmp(B, A) >= 0)\n\t\t\t\t{\n\t\t\t\tif (!BN_uadd(X, X, Y)) goto err;\n\t\t\t\tif (!BN_usub(B, B, A)) goto err;\n\t\t\t\t}\n\t\t\telse\n\t\t\t\t{\n\t\t\t\tif (!BN_uadd(Y, Y, X)) goto err;\n\t\t\t\tif (!BN_usub(A, A, B)) goto err;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\telse\n\t\t{\n\t\twhile (!BN_is_zero(B))\n\t\t\t{\n\t\t\tBIGNUM *tmp;\n\t\t\tif (BN_num_bits(A) == BN_num_bits(B))\n\t\t\t\t{\n\t\t\t\tif (!BN_one(D)) goto err;\n\t\t\t\tif (!BN_sub(M,A,B)) goto err;\n\t\t\t\t}\n\t\t\telse if (BN_num_bits(A) == BN_num_bits(B) + 1)\n\t\t\t\t{\n\t\t\t\tif (!BN_lshift1(T,B)) goto err;\n\t\t\t\tif (BN_ucmp(A,T) < 0)\n\t\t\t\t\t{\n\t\t\t\t\tif (!BN_one(D)) goto err;\n\t\t\t\t\tif (!BN_sub(M,A,B)) goto err;\n\t\t\t\t\t}\n\t\t\t\telse\n\t\t\t\t\t{\n\t\t\t\t\tif (!BN_sub(M,A,T)) goto err;\n\t\t\t\t\tif (!BN_add(D,T,B)) goto err;\n\t\t\t\t\tif (BN_ucmp(A,D) < 0)\n\t\t\t\t\t\t{\n\t\t\t\t\t\tif (!BN_set_word(D,2)) goto err;\n\t\t\t\t\t\t}\n\t\t\t\t\telse\n\t\t\t\t\t\t{\n\t\t\t\t\t\tif (!BN_set_word(D,3)) goto err;\n\t\t\t\t\t\tif (!BN_sub(M,M,B)) goto err;\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\telse\n\t\t\t\t{\n\t\t\t\tif (!BN_div(D,M,A,B,ctx)) goto err;\n\t\t\t\t}\n\t\t\ttmp=A;\n\t\t\tA=B;\n\t\t\tB=M;\n\t\t\tif (BN_is_one(D))\n\t\t\t\t{\n\t\t\t\tif (!BN_add(tmp,X,Y)) goto err;\n\t\t\t\t}\n\t\t\telse\n\t\t\t\t{\n\t\t\t\tif (BN_is_word(D,2))\n\t\t\t\t\t{\n\t\t\t\t\tif (!BN_lshift1(tmp,X)) goto err;\n\t\t\t\t\t}\n\t\t\t\telse if (BN_is_word(D,4))\n\t\t\t\t\t{\n\t\t\t\t\tif (!BN_lshift(tmp,X,2)) goto err;\n\t\t\t\t\t}\n\t\t\t\telse if (D->top == 1)\n\t\t\t\t\t{\n\t\t\t\t\tif (!BN_copy(tmp,X)) goto err;\n\t\t\t\t\tif (!BN_mul_word(tmp,D->d[0])) goto err;\n\t\t\t\t\t}\n\t\t\t\telse\n\t\t\t\t\t{\n\t\t\t\t\tif (!BN_mul(tmp,D,X,ctx)) goto err;\n\t\t\t\t\t}\n\t\t\t\tif (!BN_add(tmp,tmp,Y)) goto err;\n\t\t\t\t}\n\t\t\tM=Y;\n\t\t\tY=X;\n\t\t\tX=tmp;\n\t\t\tsign = -sign;\n\t\t\t}\n\t\t}\n\tif (sign < 0)\n\t\t{\n\t\tif (!BN_sub(Y,n,Y)) goto err;\n\t\t}\n\tif (BN_is_one(A))\n\t\t{\n\t\tif (!Y->neg && BN_ucmp(Y,n) < 0)\n\t\t\t{\n\t\t\tif (!BN_copy(R,Y)) goto err;\n\t\t\t}\n\t\telse\n\t\t\t{\n\t\t\tif (!BN_nnmod(R,Y,n,ctx)) goto err;\n\t\t\t}\n\t\t}\n\telse\n\t\t{\n\t\tBNerr(BN_F_BN_MOD_INVERSE,BN_R_NO_INVERSE);\n\t\tgoto err;\n\t\t}\n\tret=R;\nerr:\n\tif ((ret == NULL) && (in == NULL)) BN_free(R);\n\tBN_CTX_end(ctx);\n\tif (ret)\n\t\tbn_check_top(ret);\n\treturn(ret);\n\t}', 'int BN_nnmod(BIGNUM *r, const BIGNUM *m, const BIGNUM *d, BN_CTX *ctx)\n\t{\n\tif (!(BN_mod(r,m,d,ctx)))\n\t\treturn 0;\n\tif (!r->neg)\n\t\treturn 1;\n\treturn (d->neg ? BN_sub : BN_add)(r, r, d);\n}', 'int BN_div(BIGNUM *dv, BIGNUM *rm, const BIGNUM *num, const BIGNUM *divisor,\n\t BN_CTX *ctx)\n\t{\n\tint norm_shift,i,loop;\n\tBIGNUM *tmp,wnum,*snum,*sdiv,*res;\n\tBN_ULONG *resp,*wnump;\n\tBN_ULONG d0,d1;\n\tint num_n,div_n;\n\tif (dv)\n\t\tbn_check_top(dv);\n\tif (rm)\n\t\tbn_check_top(rm);\n\tbn_check_top(num);\n\tbn_check_top(divisor);\n\tif (BN_is_zero(divisor))\n\t\t{\n\t\tBNerr(BN_F_BN_DIV,BN_R_DIV_BY_ZERO);\n\t\treturn(0);\n\t\t}\n\tif (BN_ucmp(num,divisor) < 0)\n\t\t{\n\t\tif (rm != NULL)\n\t\t\t{ if (BN_copy(rm,num) == NULL) return(0); }\n\t\tif (dv != NULL) BN_zero(dv);\n\t\treturn(1);\n\t\t}\n\tBN_CTX_start(ctx);\n\ttmp=BN_CTX_get(ctx);\n\tsnum=BN_CTX_get(ctx);\n\tsdiv=BN_CTX_get(ctx);\n\tif (dv == NULL)\n\t\tres=BN_CTX_get(ctx);\n\telse\tres=dv;\n\tif (sdiv == NULL || res == NULL) goto err;\n\tnorm_shift=BN_BITS2-((BN_num_bits(divisor))%BN_BITS2);\n\tif (!(BN_lshift(sdiv,divisor,norm_shift))) goto err;\n\tsdiv->neg=0;\n\tnorm_shift+=BN_BITS2;\n\tif (!(BN_lshift(snum,num,norm_shift))) goto err;\n\tsnum->neg=0;\n\tdiv_n=sdiv->top;\n\tnum_n=snum->top;\n\tloop=num_n-div_n;\n\twnum.neg = 0;\n\twnum.d = &(snum->d[loop]);\n\twnum.top = div_n;\n\twnum.dmax = snum->dmax - loop;\n\td0=sdiv->d[div_n-1];\n\td1=(div_n == 1)?0:sdiv->d[div_n-2];\n\twnump= &(snum->d[num_n-1]);\n\tres->neg= (num->neg^divisor->neg);\n\tif (!bn_wexpand(res,(loop+1))) goto err;\n\tres->top=loop;\n\tresp= &(res->d[loop-1]);\n\tif (!bn_wexpand(tmp,(div_n+1))) goto err;\n\tif (BN_ucmp(&wnum,sdiv) >= 0)\n\t\t{\n\t\tbn_clear_top2max(&wnum);\n\t\tbn_sub_words(wnum.d, wnum.d, sdiv->d, div_n);\n\t\t*resp=1;\n\t\t}\n\telse\n\t\tres->top--;\n\tif (res->top == 0)\n\t\tres->neg = 0;\n\telse\n\t\tresp--;\n\tfor (i=0; i<loop-1; i++, wnump--, resp--)\n\t\t{\n\t\tBN_ULONG q,l0;\n#if defined(BN_DIV3W) && !defined(OPENSSL_NO_ASM)\n\t\tBN_ULONG bn_div_3_words(BN_ULONG*,BN_ULONG,BN_ULONG);\n\t\tq=bn_div_3_words(wnump,d1,d0);\n#else\n\t\tBN_ULONG n0,n1,rem=0;\n\t\tn0=wnump[0];\n\t\tn1=wnump[-1];\n\t\tif (n0 == d0)\n\t\t\tq=BN_MASK2;\n\t\telse\n\t\t\t{\n#ifdef BN_LLONG\n\t\t\tBN_ULLONG t2;\n#if defined(BN_LLONG) && defined(BN_DIV2W) && !defined(bn_div_words)\n\t\t\tq=(BN_ULONG)(((((BN_ULLONG)n0)<<BN_BITS2)|n1)/d0);\n#else\n\t\t\tq=bn_div_words(n0,n1,d0);\n#ifdef BN_DEBUG_LEVITTE\n\t\t\tfprintf(stderr,"DEBUG: bn_div_words(0x%08X,0x%08X,0x%08\\\nX) -> 0x%08X\\n",\n\t\t\t\tn0, n1, d0, q);\n#endif\n#endif\n#ifndef REMAINDER_IS_ALREADY_CALCULATED\n\t\t\trem=(n1-q*d0)&BN_MASK2;\n#endif\n\t\t\tt2=(BN_ULLONG)d1*q;\n\t\t\tfor (;;)\n\t\t\t\t{\n\t\t\t\tif (t2 <= ((((BN_ULLONG)rem)<<BN_BITS2)|wnump[-2]))\n\t\t\t\t\tbreak;\n\t\t\t\tq--;\n\t\t\t\trem += d0;\n\t\t\t\tif (rem < d0) break;\n\t\t\t\tt2 -= d1;\n\t\t\t\t}\n#else\n\t\t\tBN_ULONG t2l,t2h,ql,qh;\n\t\t\tq=bn_div_words(n0,n1,d0);\n#ifdef BN_DEBUG_LEVITTE\n\t\t\tfprintf(stderr,"DEBUG: bn_div_words(0x%08X,0x%08X,0x%08\\\nX) -> 0x%08X\\n",\n\t\t\t\tn0, n1, d0, q);\n#endif\n#ifndef REMAINDER_IS_ALREADY_CALCULATED\n\t\t\trem=(n1-q*d0)&BN_MASK2;\n#endif\n#if defined(BN_UMULT_LOHI)\n\t\t\tBN_UMULT_LOHI(t2l,t2h,d1,q);\n#elif defined(BN_UMULT_HIGH)\n\t\t\tt2l = d1 * q;\n\t\t\tt2h = BN_UMULT_HIGH(d1,q);\n#else\n\t\t\tt2l=LBITS(d1); t2h=HBITS(d1);\n\t\t\tql =LBITS(q); qh =HBITS(q);\n\t\t\tmul64(t2l,t2h,ql,qh);\n#endif\n\t\t\tfor (;;)\n\t\t\t\t{\n\t\t\t\tif ((t2h < rem) ||\n\t\t\t\t\t((t2h == rem) && (t2l <= wnump[-2])))\n\t\t\t\t\tbreak;\n\t\t\t\tq--;\n\t\t\t\trem += d0;\n\t\t\t\tif (rem < d0) break;\n\t\t\t\tif (t2l < d1) t2h--; t2l -= d1;\n\t\t\t\t}\n#endif\n\t\t\t}\n#endif\n\t\tl0=bn_mul_words(tmp->d,sdiv->d,div_n,q);\n\t\ttmp->d[div_n]=l0;\n\t\twnum.d--;\n\t\tif (bn_sub_words(wnum.d, wnum.d, tmp->d, div_n+1))\n\t\t\t{\n\t\t\tq--;\n\t\t\tif (bn_add_words(wnum.d, wnum.d, sdiv->d, div_n))\n\t\t\t\t(*wnump)++;\n\t\t\t}\n\t\t*resp = q;\n\t\t}\n\tbn_correct_top(snum);\n\tif (rm != NULL)\n\t\t{\n\t\tint neg = num->neg;\n\t\tBN_rshift(rm,snum,norm_shift);\n\t\tif (!BN_is_zero(rm))\n\t\t\trm->neg = neg;\n\t\tbn_check_top(rm);\n\t\t}\n\tBN_CTX_end(ctx);\n\treturn(1);\nerr:\n\tif (rm)\n\t\tbn_check_top(rm);\n\tBN_CTX_end(ctx);\n\treturn(0);\n\t}', 'void BN_CTX_end(BN_CTX *ctx)\n\t{\n\tCTXDBG_ENTRY("BN_CTX_end", ctx);\n\tif(ctx->err_stack)\n\t\tctx->err_stack--;\n\telse\n\t\t{\n\t\tunsigned int fp = BN_STACK_pop(&ctx->stack);\n\t\tif(fp < ctx->used)\n\t\t\tBN_POOL_release(&ctx->pool, ctx->used - fp);\n\t\tctx->used = fp;\n\t\tctx->too_many = 0;\n\t\t}\n\tCTXDBG_EXIT(ctx);\n\t}', 'static unsigned int BN_STACK_pop(BN_STACK *st)\n\t{\n\treturn st->indexes[--(st->depth)];\n\t}'] |
23,184 | 0 | https://github.com/openssl/openssl/blob/f9df0a7775f483c175cda5832360cccd1db6943a/crypto/lhash/lhash.c/#L256 | static void contract(OPENSSL_LHASH *lh)
{
OPENSSL_LH_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 = OPENSSL_realloc(lh->b,
(unsigned int)(sizeof(OPENSSL_LH_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;
}
} | ['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}', 'static void contract(OPENSSL_LHASH *lh)\n{\n OPENSSL_LH_NODE **n, *n1, *np;\n np = lh->b[lh->p + lh->pmax - 1];\n lh->b[lh->p + lh->pmax - 1] = NULL;\n if (lh->p == 0) {\n n = OPENSSL_realloc(lh->b,\n (unsigned int)(sizeof(OPENSSL_LH_NODE *) * lh->pmax));\n if (n == NULL) {\n lh->error++;\n return;\n }\n lh->num_contract_reallocs++;\n lh->num_alloc_nodes /= 2;\n lh->pmax /= 2;\n lh->p = lh->pmax - 1;\n lh->b = n;\n } else\n lh->p--;\n lh->num_nodes--;\n lh->num_contracts++;\n n1 = lh->b[(int)lh->p];\n if (n1 == NULL)\n lh->b[(int)lh->p] = np;\n else {\n while (n1->next != NULL)\n n1 = n1->next;\n n1->next = np;\n }\n}'] |
23,185 | 0 | https://github.com/openssl/openssl/blob/305b68f1a2b6d4d0aa07a6ab47ac372f067a40bb/crypto/bn/bn_ctx.c/#L348 | static void BN_POOL_release(BN_POOL *p, unsigned int num)
{
unsigned int offset = (p->used - 1) % BN_CTX_POOL_SIZE;
p->used -= num;
while (num--) {
bn_check_top(p->current->vals + offset);
if (offset == 0) {
offset = BN_CTX_POOL_SIZE - 1;
p->current = p->current->prev;
} else
offset--;
}
} | ['int BN_GF2m_mod_div(BIGNUM *r, const BIGNUM *y, const BIGNUM *x,\n const BIGNUM *p, BN_CTX *ctx)\n{\n BIGNUM *xinv = NULL;\n int ret = 0;\n bn_check_top(y);\n bn_check_top(x);\n bn_check_top(p);\n BN_CTX_start(ctx);\n xinv = BN_CTX_get(ctx);\n if (xinv == NULL)\n goto err;\n if (!BN_GF2m_mod_inv(xinv, x, p, ctx))\n goto err;\n if (!BN_GF2m_mod_mul(r, y, xinv, p, 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_GF2m_mod_inv(BIGNUM *r, const BIGNUM *a, const BIGNUM *p, BN_CTX *ctx)\n{\n BIGNUM *b = NULL;\n int ret = 0;\n BN_CTX_start(ctx);\n if ((b = BN_CTX_get(ctx)) == NULL)\n goto err;\n do {\n if (!BN_priv_rand(b, BN_num_bits(p) - 1,\n BN_RAND_TOP_ANY, BN_RAND_BOTTOM_ANY))\n goto err;\n } while (BN_is_zero(b));\n if (!BN_GF2m_mod_mul(r, a, b, p, ctx))\n goto err;\n if (!BN_GF2m_mod_inv_vartime(r, r, p, ctx))\n goto err;\n if (!BN_GF2m_mod_mul(r, r, b, p, ctx))\n goto err;\n ret = 1;\n err:\n BN_CTX_end(ctx);\n return ret;\n}', 'void BN_CTX_end(BN_CTX *ctx)\n{\n CTXDBG_ENTRY("BN_CTX_end", ctx);\n if (ctx->err_stack)\n ctx->err_stack--;\n else {\n unsigned int fp = BN_STACK_pop(&ctx->stack);\n if (fp < ctx->used)\n BN_POOL_release(&ctx->pool, ctx->used - fp);\n ctx->used = fp;\n ctx->too_many = 0;\n }\n CTXDBG_EXIT(ctx);\n}', 'int BN_GF2m_mod_mul(BIGNUM *r, const BIGNUM *a, const BIGNUM *b,\n const BIGNUM *p, BN_CTX *ctx)\n{\n int ret = 0;\n const int max = BN_num_bits(p) + 1;\n int *arr = NULL;\n bn_check_top(a);\n bn_check_top(b);\n bn_check_top(p);\n if ((arr = OPENSSL_malloc(sizeof(*arr) * max)) == NULL)\n goto err;\n ret = BN_GF2m_poly2arr(p, arr, max);\n if (!ret || ret > max) {\n BNerr(BN_F_BN_GF2M_MOD_MUL, BN_R_INVALID_LENGTH);\n goto err;\n }\n ret = BN_GF2m_mod_mul_arr(r, a, b, arr, ctx);\n bn_check_top(r);\n err:\n OPENSSL_free(arr);\n return ret;\n}', 'int BN_GF2m_mod_mul_arr(BIGNUM *r, const BIGNUM *a, const BIGNUM *b,\n const int p[], BN_CTX *ctx)\n{\n int zlen, i, j, k, ret = 0;\n BIGNUM *s;\n BN_ULONG x1, x0, y1, y0, zz[4];\n bn_check_top(a);\n bn_check_top(b);\n if (a == b) {\n return BN_GF2m_mod_sqr_arr(r, a, p, ctx);\n }\n BN_CTX_start(ctx);\n if ((s = BN_CTX_get(ctx)) == NULL)\n goto err;\n zlen = a->top + b->top + 4;\n if (!bn_wexpand(s, zlen))\n goto err;\n s->top = zlen;\n for (i = 0; i < zlen; i++)\n s->d[i] = 0;\n for (j = 0; j < b->top; j += 2) {\n y0 = b->d[j];\n y1 = ((j + 1) == b->top) ? 0 : b->d[j + 1];\n for (i = 0; i < a->top; i += 2) {\n x0 = a->d[i];\n x1 = ((i + 1) == a->top) ? 0 : a->d[i + 1];\n bn_GF2m_mul_2x2(zz, x1, x0, y1, y0);\n for (k = 0; k < 4; k++)\n s->d[i + j + k] ^= zz[k];\n }\n }\n bn_correct_top(s);\n if (BN_GF2m_mod_arr(r, s, p))\n ret = 1;\n bn_check_top(r);\n err:\n BN_CTX_end(ctx);\n return ret;\n}', '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}', 'static void BN_POOL_release(BN_POOL *p, unsigned int num)\n{\n unsigned int offset = (p->used - 1) % BN_CTX_POOL_SIZE;\n p->used -= num;\n while (num--) {\n bn_check_top(p->current->vals + offset);\n if (offset == 0) {\n offset = BN_CTX_POOL_SIZE - 1;\n p->current = p->current->prev;\n } else\n offset--;\n }\n}'] |
23,186 | 0 | https://github.com/libav/libav/blob/688417399c69aadd4c287bdb0dec82ef8799011c/libavcodec/hevcdsp_template.c/#L904 | PUT_HEVC_QPEL_HV(2, 1) | ['QPEL(12)', 'PUT_HEVC_QPEL_HV(2, 1)'] |
23,187 | 0 | https://github.com/openssl/openssl/blob/1fac96e4d6484a517f2ebe99b72016726391723c/crypto/asn1/asn1_lib.c/#L101 | int ASN1_get_object(unsigned char **pp, long *plength, int *ptag, int *pclass,
long omax)
{
int i,ret;
long l;
unsigned char *p= *pp;
int tag,xclass,inf;
long max=omax;
if (!max) goto err;
ret=(*p&V_ASN1_CONSTRUCTED);
xclass=(*p&V_ASN1_PRIVATE);
i= *p&V_ASN1_PRIMITIVE_TAG;
if (i == V_ASN1_PRIMITIVE_TAG)
{
p++;
if (--max == 0) goto err;
l=0;
while (*p&0x80)
{
l<<=7L;
l|= *(p++)&0x7f;
if (--max == 0) goto err;
}
l<<=7L;
l|= *(p++)&0x7f;
tag=(int)l;
}
else
{
tag=i;
p++;
if (--max == 0) goto err;
}
*ptag=tag;
*pclass=xclass;
if (!asn1_get_length(&p,&inf,plength,(int)max)) goto err;
#if 0
fprintf(stderr,"p=%d + *plength=%ld > omax=%ld + *pp=%d (%d > %d)\n",
(int)p,*plength,omax,(int)*pp,(int)(p+ *plength),
(int)(omax+ *pp));
#endif
#if 0
if ((p+ *plength) > (omax+ *pp))
{
ASN1err(ASN1_F_ASN1_GET_OBJECT,ASN1_R_TOO_LONG);
ret|=0x80;
}
#endif
*pp=p;
return(ret|inf);
err:
ASN1err(ASN1_F_ASN1_GET_OBJECT,ASN1_R_HEADER_TOO_LONG);
return(0x80);
} | ['static int ssl3_get_cert_verify(SSL *s)\n\t{\n\tEVP_PKEY *pkey=NULL;\n\tunsigned char *p;\n\tint al,ok,ret=0;\n\tlong n;\n\tint type=0,i,j;\n\tX509 *peer;\n\tn=ssl3_get_message(s,\n\t\tSSL3_ST_SR_CERT_VRFY_A,\n\t\tSSL3_ST_SR_CERT_VRFY_B,\n\t\t-1,\n\t\t512,\n\t\t&ok);\n\tif (!ok) return((int)n);\n\tif (s->session->peer != NULL)\n\t\t{\n\t\tpeer=s->session->peer;\n\t\tpkey=X509_get_pubkey(peer);\n\t\ttype=X509_certificate_type(peer,pkey);\n\t\t}\n\telse\n\t\t{\n\t\tpeer=NULL;\n\t\tpkey=NULL;\n\t\t}\n\tif (s->s3->tmp.message_type != SSL3_MT_CERTIFICATE_VERIFY)\n\t\t{\n\t\ts->s3->tmp.reuse_message=1;\n\t\tif ((peer != NULL) && (type | EVP_PKT_SIGN))\n\t\t\t{\n\t\t\tal=SSL_AD_UNEXPECTED_MESSAGE;\n\t\t\tSSLerr(SSL_F_SSL3_GET_CERT_VERIFY,SSL_R_MISSING_VERIFY_MESSAGE);\n\t\t\tgoto f_err;\n\t\t\t}\n\t\tret=1;\n\t\tgoto end;\n\t\t}\n\tif (peer == NULL)\n\t\t{\n\t\tSSLerr(SSL_F_SSL3_GET_CERT_VERIFY,SSL_R_NO_CLIENT_CERT_RECEIVED);\n\t\tal=SSL_AD_UNEXPECTED_MESSAGE;\n\t\tgoto f_err;\n\t\t}\n\tif (!(type & EVP_PKT_SIGN))\n\t\t{\n\t\tSSLerr(SSL_F_SSL3_GET_CERT_VERIFY,SSL_R_SIGNATURE_FOR_NON_SIGNING_CERTIFICATE);\n\t\tal=SSL_AD_ILLEGAL_PARAMETER;\n\t\tgoto f_err;\n\t\t}\n\tif (s->s3->change_cipher_spec)\n\t\t{\n\t\tSSLerr(SSL_F_SSL3_GET_CERT_VERIFY,SSL_R_CCS_RECEIVED_EARLY);\n\t\tal=SSL_AD_UNEXPECTED_MESSAGE;\n\t\tgoto f_err;\n\t\t}\n\tp=(unsigned char *)s->init_buf->data;\n\tn2s(p,i);\n\tn-=2;\n\tif (i > n)\n\t\t{\n\t\tSSLerr(SSL_F_SSL3_GET_CERT_VERIFY,SSL_R_LENGTH_MISMATCH);\n\t\tal=SSL_AD_DECODE_ERROR;\n\t\tgoto f_err;\n\t\t}\n\tj=EVP_PKEY_size(pkey);\n\tif ((i > j) || (n > j) || (n <= 0))\n\t\t{\n\t\tSSLerr(SSL_F_SSL3_GET_CERT_VERIFY,SSL_R_WRONG_SIGNATURE_SIZE);\n\t\tal=SSL_AD_DECODE_ERROR;\n\t\tgoto f_err;\n\t\t}\n#ifndef NO_RSA\n\tif (pkey->type == EVP_PKEY_RSA)\n\t\t{\n\t\ti=RSA_public_decrypt(i,p,p,pkey->pkey.rsa,RSA_PKCS1_PADDING);\n\t\tif (i < 0)\n\t\t\t{\n\t\t\tal=SSL_AD_DECRYPT_ERROR;\n\t\t\tSSLerr(SSL_F_SSL3_GET_CERT_VERIFY,SSL_R_BAD_RSA_DECRYPT);\n\t\t\tgoto f_err;\n\t\t\t}\n\t\tif ((i != (MD5_DIGEST_LENGTH+SHA_DIGEST_LENGTH)) ||\n\t\t\tmemcmp(&(s->s3->tmp.finish_md[0]),p,\n\t\t\t\tMD5_DIGEST_LENGTH+SHA_DIGEST_LENGTH))\n\t\t\t{\n\t\t\tal=SSL_AD_DECRYPT_ERROR;\n\t\t\tSSLerr(SSL_F_SSL3_GET_CERT_VERIFY,SSL_R_BAD_RSA_SIGNATURE);\n\t\t\tgoto f_err;\n\t\t\t}\n\t\t}\n\telse\n#endif\n#ifndef NO_DSA\n\t\tif (pkey->type == EVP_PKEY_DSA)\n\t\t{\n\t\tj=DSA_verify(pkey->save_type,\n\t\t\t&(s->s3->tmp.finish_md[MD5_DIGEST_LENGTH]),\n\t\t\tSHA_DIGEST_LENGTH,p,i,pkey->pkey.dsa);\n\t\tif (j <= 0)\n\t\t\t{\n\t\t\tal=SSL_AD_DECRYPT_ERROR;\n\t\t\tSSLerr(SSL_F_SSL3_GET_CERT_VERIFY,SSL_R_BAD_DSA_SIGNATURE);\n\t\t\tgoto f_err;\n\t\t\t}\n\t\t}\n\telse\n#endif\n\t\t{\n\t\tSSLerr(SSL_F_SSL3_GET_CERT_VERIFY,SSL_R_INTERNAL_ERROR);\n\t\tal=SSL_AD_UNSUPPORTED_CERTIFICATE;\n\t\tgoto f_err;\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}\nend:\n\tEVP_PKEY_free(pkey);\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}', 'EVP_PKEY *X509_PUBKEY_get(X509_PUBKEY *key)\n\t{\n\tEVP_PKEY *ret=NULL;\n\tlong j;\n\tint type;\n\tunsigned char *p;\n#ifndef NO_DSA\n\tX509_ALGOR *a;\n#endif\n\tif (key == NULL) goto err;\n\tif (key->pkey != NULL)\n\t {\n\t CRYPTO_add(&key->pkey->references,1,CRYPTO_LOCK_EVP_PKEY);\n\t return(key->pkey);\n\t }\n\tif (key->public_key == NULL) goto err;\n\ttype=OBJ_obj2nid(key->algor->algorithm);\n\tp=key->public_key->data;\n j=key->public_key->length;\n if ((ret=d2i_PublicKey(type,NULL,&p,(long)j)) == NULL)\n\t\t{\n\t\tX509err(X509_F_X509_PUBKEY_GET,X509_R_ERR_ASN1_LIB);\n\t\tgoto err;\n\t\t}\n\tret->save_parameters=0;\n#ifndef NO_DSA\n\ta=key->algor;\n\tif (ret->type == EVP_PKEY_DSA)\n\t\t{\n\t\tif (a->parameter->type == V_ASN1_SEQUENCE)\n\t\t\t{\n\t\t\tret->pkey.dsa->write_params=0;\n\t\t\tp=a->parameter->value.sequence->data;\n\t\t\tj=a->parameter->value.sequence->length;\n\t\t\tif (!d2i_DSAparams(&ret->pkey.dsa,&p,(long)j))\n\t\t\t\tgoto err;\n\t\t\t}\n\t\tret->save_parameters=1;\n\t\t}\n#endif\n\tkey->pkey=ret;\n\tCRYPTO_add(&ret->references,1,CRYPTO_LOCK_EVP_PKEY);\n\treturn(ret);\nerr:\n\tif (ret != NULL)\n\t\tEVP_PKEY_free(ret);\n\treturn(NULL);\n\t}', 'DSA *d2i_DSAparams(DSA **a, unsigned char **pp, long length)\n\t{\n\tint i=ERR_R_NESTED_ASN1_ERROR;\n\tASN1_INTEGER *bs=NULL;\n\tM_ASN1_D2I_vars(a,DSA *,DSA_new);\n\tM_ASN1_D2I_Init();\n\tM_ASN1_D2I_start_sequence();\n\tM_ASN1_D2I_get(bs,d2i_ASN1_INTEGER);\n\tif ((ret->p=BN_bin2bn(bs->data,bs->length,ret->p)) == NULL) goto err_bn;\n\tM_ASN1_D2I_get(bs,d2i_ASN1_INTEGER);\n\tif ((ret->q=BN_bin2bn(bs->data,bs->length,ret->q)) == NULL) goto err_bn;\n\tM_ASN1_D2I_get(bs,d2i_ASN1_INTEGER);\n\tif ((ret->g=BN_bin2bn(bs->data,bs->length,ret->g)) == NULL) goto err_bn;\n\tASN1_BIT_STRING_free(bs);\n\tM_ASN1_D2I_Finish_2(a);\nerr_bn:\n\ti=ERR_R_BN_LIB;\nerr:\n\tASN1err(ASN1_F_D2I_DSAPARAMS,i);\n\tif ((ret != NULL) && ((a == NULL) || (*a != ret))) DSA_free(ret);\n\tif (bs != NULL) ASN1_BIT_STRING_free(bs);\n\treturn(NULL);\n\t}', 'ASN1_INTEGER *d2i_ASN1_INTEGER(ASN1_INTEGER **a, unsigned char **pp,\n\t long length)\n\t{\n\tASN1_INTEGER *ret=NULL;\n\tunsigned char *p,*to,*s;\n\tlong len;\n\tint inf,tag,xclass;\n\tint i;\n\tif ((a == NULL) || ((*a) == NULL))\n\t\t{\n\t\tif ((ret=ASN1_INTEGER_new()) == NULL) return(NULL);\n\t\tret->type=V_ASN1_INTEGER;\n\t\t}\n\telse\n\t\tret=(*a);\n\tp= *pp;\n\tinf=ASN1_get_object(&p,&len,&tag,&xclass,length);\n\tif (inf & 0x80)\n\t\t{\n\t\ti=ASN1_R_BAD_OBJECT_HEADER;\n\t\tgoto err;\n\t\t}\n\tif (tag != V_ASN1_INTEGER)\n\t\t{\n\t\ti=ASN1_R_EXPECTING_AN_INTEGER;\n\t\tgoto err;\n\t\t}\n\ts=(unsigned char *)Malloc((int)len+1);\n\tif (s == NULL)\n\t\t{\n\t\ti=ERR_R_MALLOC_FAILURE;\n\t\tgoto err;\n\t\t}\n\tto=s;\n\tif (*p & 0x80)\n\t\t{\n\t\tret->type=V_ASN1_NEG_INTEGER;\n\t\tif ((*p == 0xff) && (len != 1)) {\n\t\t\tp++;\n\t\t\tlen--;\n\t\t}\n\t\ti = len;\n\t\tp += i - 1;\n\t\tto += i - 1;\n\t\twhile((!*p) && i) {\n\t\t\t*(to--) = 0;\n\t\t\ti--;\n\t\t\tp--;\n\t\t}\n\t\tif(!i) {\n\t\t\t*s = 1;\n\t\t\ts[len] = 0;\n\t\t\tp += len;\n\t\t\tlen++;\n\t\t} else {\n\t\t\t*(to--) = (*(p--) ^ 0xff) + 1;\n\t\t\ti--;\n\t\t\tfor(;i > 0; i--) *(to--) = *(p--) ^ 0xff;\n\t\t\tp += len;\n\t\t}\n\t} else {\n\t\tret->type=V_ASN1_INTEGER;\n\t\tif ((*p == 0) && (len != 1))\n\t\t\t{\n\t\t\tp++;\n\t\t\tlen--;\n\t\t\t}\n\t\tmemcpy(s,p,(int)len);\n\t\tp+=len;\n\t}\n\tif (ret->data != NULL) Free((char *)ret->data);\n\tret->data=s;\n\tret->length=(int)len;\n\tif (a != NULL) (*a)=ret;\n\t*pp=p;\n\treturn(ret);\nerr:\n\tASN1err(ASN1_F_D2I_ASN1_INTEGER,i);\n\tif ((ret != NULL) && ((a == NULL) || (*a != ret)))\n\t\tASN1_INTEGER_free(ret);\n\treturn(NULL);\n\t}', 'int X509_certificate_type(X509 *x, EVP_PKEY *pkey)\n\t{\n\tEVP_PKEY *pk;\n\tint ret=0,i;\n\tif (x == NULL) return(0);\n\tif (pkey == NULL)\n\t\tpk=X509_get_pubkey(x);\n\telse\n\t\tpk=pkey;\n\tif (pk == NULL) return(0);\n\tswitch (pk->type)\n\t\t{\n\tcase EVP_PKEY_RSA:\n\t\tret=EVP_PK_RSA|EVP_PKT_SIGN;\n\t\t\tret|=EVP_PKT_ENC;\n\tbreak;\n\tcase EVP_PKEY_DSA:\n\t\tret=EVP_PK_DSA|EVP_PKT_SIGN;\n\t\tbreak;\n\tcase EVP_PKEY_DH:\n\t\tret=EVP_PK_DH|EVP_PKT_EXCH;\n\t\tbreak;\n\tdefault:\n\t\tbreak;\n\t\t}\n\ti=X509_get_signature_type(x);\n\tswitch (i)\n\t\t{\n\tcase EVP_PKEY_RSA:\n\t\tret|=EVP_PKS_RSA;\n\t\tbreak;\n\tcase EVP_PKS_DSA:\n\t\tret|=EVP_PKS_DSA;\n\t\tbreak;\n\tdefault:\n\t\tbreak;\n\t\t}\n\tif (EVP_PKEY_size(pk) <= 512)\n\t\tret|=EVP_PKT_EXP;\n\tif(pkey==NULL) EVP_PKEY_free(pk);\n\treturn(ret);\n\t}', 'int asn1_GetSequence(ASN1_CTX *c, long *length)\n\t{\n\tunsigned char *q;\n\tq=c->p;\n\tc->inf=ASN1_get_object(&(c->p),&(c->slen),&(c->tag),&(c->xclass),\n\t\t*length);\n\tif (c->inf & 0x80)\n\t\t{\n\t\tc->error=ERR_R_BAD_GET_ASN1_OBJECT_CALL;\n\t\treturn(0);\n\t\t}\n\tif (c->tag != V_ASN1_SEQUENCE)\n\t\t{\n\t\tc->error=ERR_R_EXPECTING_AN_ASN1_SEQUENCE;\n\t\treturn(0);\n\t\t}\n\t(*length)-=(c->p-q);\n\tif (c->max && (*length < 0))\n\t\t{\n\t\tc->error=ERR_R_ASN1_LENGTH_MISMATCH;\n\t\treturn(0);\n\t\t}\n\tif (c->inf == (1|V_ASN1_CONSTRUCTED))\n\t\tc->slen= *length+ *(c->pp)-c->p;\n\tc->eos=0;\n\treturn(1);\n\t}', 'int ASN1_get_object(unsigned char **pp, long *plength, int *ptag, int *pclass,\n\t long omax)\n\t{\n\tint i,ret;\n\tlong l;\n\tunsigned char *p= *pp;\n\tint tag,xclass,inf;\n\tlong max=omax;\n\tif (!max) goto err;\n\tret=(*p&V_ASN1_CONSTRUCTED);\n\txclass=(*p&V_ASN1_PRIVATE);\n\ti= *p&V_ASN1_PRIMITIVE_TAG;\n\tif (i == V_ASN1_PRIMITIVE_TAG)\n\t\t{\n\t\tp++;\n\t\tif (--max == 0) goto err;\n\t\tl=0;\n\t\twhile (*p&0x80)\n\t\t\t{\n\t\t\tl<<=7L;\n\t\t\tl|= *(p++)&0x7f;\n\t\t\tif (--max == 0) goto err;\n\t\t\t}\n\t\tl<<=7L;\n\t\tl|= *(p++)&0x7f;\n\t\ttag=(int)l;\n\t\t}\n\telse\n\t\t{\n\t\ttag=i;\n\t\tp++;\n\t\tif (--max == 0) goto err;\n\t\t}\n\t*ptag=tag;\n\t*pclass=xclass;\n\tif (!asn1_get_length(&p,&inf,plength,(int)max)) goto err;\n#if 0\n\tfprintf(stderr,"p=%d + *plength=%ld > omax=%ld + *pp=%d (%d > %d)\\n",\n\t\t(int)p,*plength,omax,(int)*pp,(int)(p+ *plength),\n\t\t(int)(omax+ *pp));\n#endif\n#if 0\n\tif ((p+ *plength) > (omax+ *pp))\n\t\t{\n\t\tASN1err(ASN1_F_ASN1_GET_OBJECT,ASN1_R_TOO_LONG);\n\t\tret|=0x80;\n\t\t}\n#endif\n\t*pp=p;\n\treturn(ret|inf);\nerr:\n\tASN1err(ASN1_F_ASN1_GET_OBJECT,ASN1_R_HEADER_TOO_LONG);\n\treturn(0x80);\n\t}'] |
23,188 | 0 | https://github.com/openssl/openssl/blob/6bc62a620e715f7580651ca932eab052aa527886/crypto/bn/bn_ctx.c/#L268 | static unsigned int BN_STACK_pop(BN_STACK *st)
{
return st->indexes[--(st->depth)];
} | ['int BN_mod_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}', '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}', '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}'] |
23,189 | 0 | https://github.com/libav/libav/blob/cf53c48615658a6019ffb7e8453913bbfd38cb27/libavcodec/h264.h/#L977 | static void fill_decode_caches(H264Context *h, int mb_type){
MpegEncContext * const s = &h->s;
int topleft_xy, top_xy, topright_xy, left_xy[2];
int topleft_type, top_type, topright_type, left_type[2];
const uint8_t * left_block= h->left_block;
int i;
topleft_xy = h->topleft_mb_xy ;
top_xy = h->top_mb_xy ;
topright_xy = h->topright_mb_xy;
left_xy[0] = h->left_mb_xy[0] ;
left_xy[1] = h->left_mb_xy[1] ;
topleft_type = h->topleft_type ;
top_type = h->top_type ;
topright_type= h->topright_type ;
left_type[0] = h->left_type[0] ;
left_type[1] = h->left_type[1] ;
if(!IS_SKIP(mb_type)){
if(IS_INTRA(mb_type)){
int type_mask= h->pps.constrained_intra_pred ? IS_INTRA(-1) : -1;
h->topleft_samples_available=
h->top_samples_available=
h->left_samples_available= 0xFFFF;
h->topright_samples_available= 0xEEEA;
if(!(top_type & type_mask)){
h->topleft_samples_available= 0xB3FF;
h->top_samples_available= 0x33FF;
h->topright_samples_available= 0x26EA;
}
if(IS_INTERLACED(mb_type) != IS_INTERLACED(left_type[0])){
if(IS_INTERLACED(mb_type)){
if(!(left_type[0] & type_mask)){
h->topleft_samples_available&= 0xDFFF;
h->left_samples_available&= 0x5FFF;
}
if(!(left_type[1] & type_mask)){
h->topleft_samples_available&= 0xFF5F;
h->left_samples_available&= 0xFF5F;
}
}else{
int left_typei = s->current_picture.mb_type[left_xy[0] + s->mb_stride];
assert(left_xy[0] == left_xy[1]);
if(!((left_typei & type_mask) && (left_type[0] & type_mask))){
h->topleft_samples_available&= 0xDF5F;
h->left_samples_available&= 0x5F5F;
}
}
}else{
if(!(left_type[0] & type_mask)){
h->topleft_samples_available&= 0xDF5F;
h->left_samples_available&= 0x5F5F;
}
}
if(!(topleft_type & type_mask))
h->topleft_samples_available&= 0x7FFF;
if(!(topright_type & type_mask))
h->topright_samples_available&= 0xFBFF;
if(IS_INTRA4x4(mb_type)){
if(IS_INTRA4x4(top_type)){
AV_COPY32(h->intra4x4_pred_mode_cache+4+8*0, h->intra4x4_pred_mode + h->mb2br_xy[top_xy]);
}else{
h->intra4x4_pred_mode_cache[4+8*0]=
h->intra4x4_pred_mode_cache[5+8*0]=
h->intra4x4_pred_mode_cache[6+8*0]=
h->intra4x4_pred_mode_cache[7+8*0]= 2 - 3*!(top_type & type_mask);
}
for(i=0; i<2; i++){
if(IS_INTRA4x4(left_type[i])){
int8_t *mode= h->intra4x4_pred_mode + h->mb2br_xy[left_xy[i]];
h->intra4x4_pred_mode_cache[3+8*1 + 2*8*i]= mode[6-left_block[0+2*i]];
h->intra4x4_pred_mode_cache[3+8*2 + 2*8*i]= mode[6-left_block[1+2*i]];
}else{
h->intra4x4_pred_mode_cache[3+8*1 + 2*8*i]=
h->intra4x4_pred_mode_cache[3+8*2 + 2*8*i]= 2 - 3*!(left_type[i] & type_mask);
}
}
}
}
if(top_type){
AV_COPY32(&h->non_zero_count_cache[4+8* 0], &h->non_zero_count[top_xy][4*3]);
if(CHROMA444){
AV_COPY32(&h->non_zero_count_cache[4+8* 5], &h->non_zero_count[top_xy][4* 7]);
AV_COPY32(&h->non_zero_count_cache[4+8*10], &h->non_zero_count[top_xy][4*11]);
}else{
AV_COPY32(&h->non_zero_count_cache[4+8* 5], &h->non_zero_count[top_xy][4* 5]);
AV_COPY32(&h->non_zero_count_cache[4+8*10], &h->non_zero_count[top_xy][4* 9]);
}
}else{
uint32_t top_empty = CABAC && !IS_INTRA(mb_type) ? 0 : 0x40404040;
AV_WN32A(&h->non_zero_count_cache[4+8* 0], top_empty);
AV_WN32A(&h->non_zero_count_cache[4+8* 5], top_empty);
AV_WN32A(&h->non_zero_count_cache[4+8*10], top_empty);
}
for (i=0; i<2; i++) {
if(left_type[i]){
h->non_zero_count_cache[3+8* 1 + 2*8*i]= h->non_zero_count[left_xy[i]][left_block[8+0+2*i]];
h->non_zero_count_cache[3+8* 2 + 2*8*i]= h->non_zero_count[left_xy[i]][left_block[8+1+2*i]];
if(CHROMA444){
h->non_zero_count_cache[3+8* 6 + 2*8*i]= h->non_zero_count[left_xy[i]][left_block[8+0+2*i]+4*4];
h->non_zero_count_cache[3+8* 7 + 2*8*i]= h->non_zero_count[left_xy[i]][left_block[8+1+2*i]+4*4];
h->non_zero_count_cache[3+8*11 + 2*8*i]= h->non_zero_count[left_xy[i]][left_block[8+0+2*i]+8*4];
h->non_zero_count_cache[3+8*12 + 2*8*i]= h->non_zero_count[left_xy[i]][left_block[8+1+2*i]+8*4];
}else{
h->non_zero_count_cache[3+8* 6 + 8*i]= h->non_zero_count[left_xy[i]][left_block[8+4+2*i]];
h->non_zero_count_cache[3+8*11 + 8*i]= h->non_zero_count[left_xy[i]][left_block[8+5+2*i]];
}
}else{
h->non_zero_count_cache[3+8* 1 + 2*8*i]=
h->non_zero_count_cache[3+8* 2 + 2*8*i]=
h->non_zero_count_cache[3+8* 6 + 2*8*i]=
h->non_zero_count_cache[3+8* 7 + 2*8*i]=
h->non_zero_count_cache[3+8*11 + 2*8*i]=
h->non_zero_count_cache[3+8*12 + 2*8*i]= CABAC && !IS_INTRA(mb_type) ? 0 : 64;
}
}
if( CABAC ) {
if(top_type) {
h->top_cbp = h->cbp_table[top_xy];
} else {
h->top_cbp = IS_INTRA(mb_type) ? 0x7CF : 0x00F;
}
if (left_type[0]) {
h->left_cbp = (h->cbp_table[left_xy[0]] & 0x7F0)
| ((h->cbp_table[left_xy[0]]>>(left_block[0]&(~1)))&2)
| (((h->cbp_table[left_xy[1]]>>(left_block[2]&(~1)))&2) << 2);
} else {
h->left_cbp = IS_INTRA(mb_type) ? 0x7CF : 0x00F;
}
}
}
if(IS_INTER(mb_type) || (IS_DIRECT(mb_type) && h->direct_spatial_mv_pred)){
int list;
for(list=0; list<h->list_count; list++){
if(!USES_LIST(mb_type, list)){
continue;
}
assert(!(IS_DIRECT(mb_type) && !h->direct_spatial_mv_pred));
h->mv_cache_clean[list]= 0;
if(USES_LIST(top_type, list)){
const int b_xy= h->mb2b_xy[top_xy] + 3*h->b_stride;
AV_COPY128(h->mv_cache[list][scan8[0] + 0 - 1*8], s->current_picture.motion_val[list][b_xy + 0]);
h->ref_cache[list][scan8[0] + 0 - 1*8]=
h->ref_cache[list][scan8[0] + 1 - 1*8]= s->current_picture.ref_index[list][4*top_xy + 2];
h->ref_cache[list][scan8[0] + 2 - 1*8]=
h->ref_cache[list][scan8[0] + 3 - 1*8]= s->current_picture.ref_index[list][4*top_xy + 3];
}else{
AV_ZERO128(h->mv_cache[list][scan8[0] + 0 - 1*8]);
AV_WN32A(&h->ref_cache[list][scan8[0] + 0 - 1*8], ((top_type ? LIST_NOT_USED : PART_NOT_AVAILABLE)&0xFF)*0x01010101);
}
if(mb_type & (MB_TYPE_16x8|MB_TYPE_8x8)){
for(i=0; i<2; i++){
int cache_idx = scan8[0] - 1 + i*2*8;
if(USES_LIST(left_type[i], list)){
const int b_xy= h->mb2b_xy[left_xy[i]] + 3;
const int b8_xy= 4*left_xy[i] + 1;
AV_COPY32(h->mv_cache[list][cache_idx ], s->current_picture.motion_val[list][b_xy + h->b_stride*left_block[0+i*2]]);
AV_COPY32(h->mv_cache[list][cache_idx+8], s->current_picture.motion_val[list][b_xy + h->b_stride*left_block[1+i*2]]);
h->ref_cache[list][cache_idx ]= s->current_picture.ref_index[list][b8_xy + (left_block[0+i*2]&~1)];
h->ref_cache[list][cache_idx+8]= s->current_picture.ref_index[list][b8_xy + (left_block[1+i*2]&~1)];
}else{
AV_ZERO32(h->mv_cache [list][cache_idx ]);
AV_ZERO32(h->mv_cache [list][cache_idx+8]);
h->ref_cache[list][cache_idx ]=
h->ref_cache[list][cache_idx+8]= (left_type[i]) ? LIST_NOT_USED : PART_NOT_AVAILABLE;
}
}
}else{
if(USES_LIST(left_type[0], list)){
const int b_xy= h->mb2b_xy[left_xy[0]] + 3;
const int b8_xy= 4*left_xy[0] + 1;
AV_COPY32(h->mv_cache[list][scan8[0] - 1], s->current_picture.motion_val[list][b_xy + h->b_stride*left_block[0]]);
h->ref_cache[list][scan8[0] - 1]= s->current_picture.ref_index[list][b8_xy + (left_block[0]&~1)];
}else{
AV_ZERO32(h->mv_cache [list][scan8[0] - 1]);
h->ref_cache[list][scan8[0] - 1]= left_type[0] ? LIST_NOT_USED : PART_NOT_AVAILABLE;
}
}
if(USES_LIST(topright_type, list)){
const int b_xy= h->mb2b_xy[topright_xy] + 3*h->b_stride;
AV_COPY32(h->mv_cache[list][scan8[0] + 4 - 1*8], s->current_picture.motion_val[list][b_xy]);
h->ref_cache[list][scan8[0] + 4 - 1*8]= s->current_picture.ref_index[list][4*topright_xy + 2];
}else{
AV_ZERO32(h->mv_cache [list][scan8[0] + 4 - 1*8]);
h->ref_cache[list][scan8[0] + 4 - 1*8]= topright_type ? LIST_NOT_USED : PART_NOT_AVAILABLE;
}
if(h->ref_cache[list][scan8[0] + 4 - 1*8] < 0){
if(USES_LIST(topleft_type, list)){
const int b_xy = h->mb2b_xy [topleft_xy] + 3 + h->b_stride + (h->topleft_partition & 2*h->b_stride);
const int b8_xy= 4*topleft_xy + 1 + (h->topleft_partition & 2);
AV_COPY32(h->mv_cache[list][scan8[0] - 1 - 1*8], s->current_picture.motion_val[list][b_xy]);
h->ref_cache[list][scan8[0] - 1 - 1*8]= s->current_picture.ref_index[list][b8_xy];
}else{
AV_ZERO32(h->mv_cache[list][scan8[0] - 1 - 1*8]);
h->ref_cache[list][scan8[0] - 1 - 1*8]= topleft_type ? LIST_NOT_USED : PART_NOT_AVAILABLE;
}
}
if((mb_type&(MB_TYPE_SKIP|MB_TYPE_DIRECT2)) && !FRAME_MBAFF)
continue;
if(!(mb_type&(MB_TYPE_SKIP|MB_TYPE_DIRECT2))) {
h->ref_cache[list][scan8[4 ]] =
h->ref_cache[list][scan8[12]] = PART_NOT_AVAILABLE;
AV_ZERO32(h->mv_cache [list][scan8[4 ]]);
AV_ZERO32(h->mv_cache [list][scan8[12]]);
if( CABAC ) {
if(USES_LIST(top_type, list)){
const int b_xy= h->mb2br_xy[top_xy];
AV_COPY64(h->mvd_cache[list][scan8[0] + 0 - 1*8], h->mvd_table[list][b_xy + 0]);
}else{
AV_ZERO64(h->mvd_cache[list][scan8[0] + 0 - 1*8]);
}
if(USES_LIST(left_type[0], list)){
const int b_xy= h->mb2br_xy[left_xy[0]] + 6;
AV_COPY16(h->mvd_cache[list][scan8[0] - 1 + 0*8], h->mvd_table[list][b_xy - left_block[0]]);
AV_COPY16(h->mvd_cache[list][scan8[0] - 1 + 1*8], h->mvd_table[list][b_xy - left_block[1]]);
}else{
AV_ZERO16(h->mvd_cache [list][scan8[0] - 1 + 0*8]);
AV_ZERO16(h->mvd_cache [list][scan8[0] - 1 + 1*8]);
}
if(USES_LIST(left_type[1], list)){
const int b_xy= h->mb2br_xy[left_xy[1]] + 6;
AV_COPY16(h->mvd_cache[list][scan8[0] - 1 + 2*8], h->mvd_table[list][b_xy - left_block[2]]);
AV_COPY16(h->mvd_cache[list][scan8[0] - 1 + 3*8], h->mvd_table[list][b_xy - left_block[3]]);
}else{
AV_ZERO16(h->mvd_cache [list][scan8[0] - 1 + 2*8]);
AV_ZERO16(h->mvd_cache [list][scan8[0] - 1 + 3*8]);
}
AV_ZERO16(h->mvd_cache [list][scan8[4 ]]);
AV_ZERO16(h->mvd_cache [list][scan8[12]]);
if(h->slice_type_nos == AV_PICTURE_TYPE_B){
fill_rectangle(&h->direct_cache[scan8[0]], 4, 4, 8, MB_TYPE_16x16>>1, 1);
if(IS_DIRECT(top_type)){
AV_WN32A(&h->direct_cache[scan8[0] - 1*8], 0x01010101u*(MB_TYPE_DIRECT2>>1));
}else if(IS_8X8(top_type)){
int b8_xy = 4*top_xy;
h->direct_cache[scan8[0] + 0 - 1*8]= h->direct_table[b8_xy + 2];
h->direct_cache[scan8[0] + 2 - 1*8]= h->direct_table[b8_xy + 3];
}else{
AV_WN32A(&h->direct_cache[scan8[0] - 1*8], 0x01010101*(MB_TYPE_16x16>>1));
}
if(IS_DIRECT(left_type[0]))
h->direct_cache[scan8[0] - 1 + 0*8]= MB_TYPE_DIRECT2>>1;
else if(IS_8X8(left_type[0]))
h->direct_cache[scan8[0] - 1 + 0*8]= h->direct_table[4*left_xy[0] + 1 + (left_block[0]&~1)];
else
h->direct_cache[scan8[0] - 1 + 0*8]= MB_TYPE_16x16>>1;
if(IS_DIRECT(left_type[1]))
h->direct_cache[scan8[0] - 1 + 2*8]= MB_TYPE_DIRECT2>>1;
else if(IS_8X8(left_type[1]))
h->direct_cache[scan8[0] - 1 + 2*8]= h->direct_table[4*left_xy[1] + 1 + (left_block[2]&~1)];
else
h->direct_cache[scan8[0] - 1 + 2*8]= MB_TYPE_16x16>>1;
}
}
}
if(FRAME_MBAFF){
#define MAP_MVS\
MAP_F2F(scan8[0] - 1 - 1*8, topleft_type)\
MAP_F2F(scan8[0] + 0 - 1*8, top_type)\
MAP_F2F(scan8[0] + 1 - 1*8, top_type)\
MAP_F2F(scan8[0] + 2 - 1*8, top_type)\
MAP_F2F(scan8[0] + 3 - 1*8, top_type)\
MAP_F2F(scan8[0] + 4 - 1*8, topright_type)\
MAP_F2F(scan8[0] - 1 + 0*8, left_type[0])\
MAP_F2F(scan8[0] - 1 + 1*8, left_type[0])\
MAP_F2F(scan8[0] - 1 + 2*8, left_type[1])\
MAP_F2F(scan8[0] - 1 + 3*8, left_type[1])
if(MB_FIELD){
#define MAP_F2F(idx, mb_type)\
if(!IS_INTERLACED(mb_type) && h->ref_cache[list][idx] >= 0){\
h->ref_cache[list][idx] <<= 1;\
h->mv_cache[list][idx][1] /= 2;\
h->mvd_cache[list][idx][1] >>=1;\
}
MAP_MVS
#undef MAP_F2F
}else{
#define MAP_F2F(idx, mb_type)\
if(IS_INTERLACED(mb_type) && h->ref_cache[list][idx] >= 0){\
h->ref_cache[list][idx] >>= 1;\
h->mv_cache[list][idx][1] <<= 1;\
h->mvd_cache[list][idx][1] <<= 1;\
}
MAP_MVS
#undef MAP_F2F
}
}
}
}
h->neighbor_transform_size= !!IS_8x8DCT(top_type) + !!IS_8x8DCT(left_type[0]);
} | ['int ff_h264_decode_mb_cavlc(H264Context *h){\n MpegEncContext * const s = &h->s;\n int mb_xy;\n int partition_count;\n unsigned int mb_type, cbp;\n int dct8x8_allowed= h->pps.transform_8x8_mode;\n int decode_chroma = h->sps.chroma_format_idc == 1 || h->sps.chroma_format_idc == 2;\n const int pixel_shift = h->pixel_shift;\n mb_xy = h->mb_xy = s->mb_x + s->mb_y*s->mb_stride;\n tprintf(s->avctx, "pic:%d mb:%d/%d\\n", h->frame_num, s->mb_x, s->mb_y);\n cbp = 0;\n if(h->slice_type_nos != AV_PICTURE_TYPE_I){\n if(s->mb_skip_run==-1)\n s->mb_skip_run= get_ue_golomb(&s->gb);\n if (s->mb_skip_run--) {\n if(FRAME_MBAFF && (s->mb_y&1) == 0){\n if(s->mb_skip_run==0)\n h->mb_mbaff = h->mb_field_decoding_flag = get_bits1(&s->gb);\n }\n decode_mb_skip(h);\n return 0;\n }\n }\n if(FRAME_MBAFF){\n if( (s->mb_y&1) == 0 )\n h->mb_mbaff = h->mb_field_decoding_flag = get_bits1(&s->gb);\n }\n h->prev_mb_skipped= 0;\n mb_type= get_ue_golomb(&s->gb);\n if(h->slice_type_nos == AV_PICTURE_TYPE_B){\n if(mb_type < 23){\n partition_count= b_mb_type_info[mb_type].partition_count;\n mb_type= b_mb_type_info[mb_type].type;\n }else{\n mb_type -= 23;\n goto decode_intra_mb;\n }\n }else if(h->slice_type_nos == AV_PICTURE_TYPE_P){\n if(mb_type < 5){\n partition_count= p_mb_type_info[mb_type].partition_count;\n mb_type= p_mb_type_info[mb_type].type;\n }else{\n mb_type -= 5;\n goto decode_intra_mb;\n }\n }else{\n assert(h->slice_type_nos == AV_PICTURE_TYPE_I);\n if(h->slice_type == AV_PICTURE_TYPE_SI && mb_type)\n mb_type--;\ndecode_intra_mb:\n if(mb_type > 25){\n av_log(h->s.avctx, AV_LOG_ERROR, "mb_type %d in %c slice too large at %d %d\\n", mb_type, av_get_picture_type_char(h->slice_type), s->mb_x, s->mb_y);\n return -1;\n }\n partition_count=0;\n cbp= i_mb_type_info[mb_type].cbp;\n h->intra16x16_pred_mode= i_mb_type_info[mb_type].pred_mode;\n mb_type= i_mb_type_info[mb_type].type;\n }\n if(MB_FIELD)\n mb_type |= MB_TYPE_INTERLACED;\n h->slice_table[ mb_xy ]= h->slice_num;\n if(IS_INTRA_PCM(mb_type)){\n unsigned int x;\n static const uint16_t mb_sizes[4] = {256,384,512,768};\n const int mb_size = mb_sizes[h->sps.chroma_format_idc]*h->sps.bit_depth_luma >> 3;\n align_get_bits(&s->gb);\n for(x=0; x < mb_size; x++){\n ((uint8_t*)h->mb)[x]= get_bits(&s->gb, 8);\n }\n s->current_picture.qscale_table[mb_xy]= 0;\n memset(h->non_zero_count[mb_xy], 16, 48);\n s->current_picture.mb_type[mb_xy]= mb_type;\n return 0;\n }\n if(MB_MBAFF){\n h->ref_count[0] <<= 1;\n h->ref_count[1] <<= 1;\n }\n fill_decode_neighbors(h, mb_type);\n fill_decode_caches(h, mb_type);\n if(IS_INTRA(mb_type)){\n int pred_mode;\n if(IS_INTRA4x4(mb_type)){\n int i;\n int di = 1;\n if(dct8x8_allowed && get_bits1(&s->gb)){\n mb_type |= MB_TYPE_8x8DCT;\n di = 4;\n }\n for(i=0; i<16; i+=di){\n int mode= pred_intra_mode(h, i);\n if(!get_bits1(&s->gb)){\n const int rem_mode= get_bits(&s->gb, 3);\n mode = rem_mode + (rem_mode >= mode);\n }\n if(di==4)\n fill_rectangle( &h->intra4x4_pred_mode_cache[ scan8[i] ], 2, 2, 8, mode, 1 );\n else\n h->intra4x4_pred_mode_cache[ scan8[i] ] = mode;\n }\n ff_h264_write_back_intra_pred_mode(h);\n if( ff_h264_check_intra4x4_pred_mode(h) < 0)\n return -1;\n }else{\n h->intra16x16_pred_mode= ff_h264_check_intra_pred_mode(h, h->intra16x16_pred_mode);\n if(h->intra16x16_pred_mode < 0)\n return -1;\n }\n if(decode_chroma){\n pred_mode= ff_h264_check_intra_pred_mode(h, get_ue_golomb_31(&s->gb));\n if(pred_mode < 0)\n return -1;\n h->chroma_pred_mode= pred_mode;\n } else {\n h->chroma_pred_mode = DC_128_PRED8x8;\n }\n }else if(partition_count==4){\n int i, j, sub_partition_count[4], list, ref[2][4];\n if(h->slice_type_nos == AV_PICTURE_TYPE_B){\n for(i=0; i<4; i++){\n h->sub_mb_type[i]= get_ue_golomb_31(&s->gb);\n if(h->sub_mb_type[i] >=13){\n av_log(h->s.avctx, AV_LOG_ERROR, "B sub_mb_type %u out of range at %d %d\\n", h->sub_mb_type[i], s->mb_x, s->mb_y);\n return -1;\n }\n sub_partition_count[i]= b_sub_mb_type_info[ h->sub_mb_type[i] ].partition_count;\n h->sub_mb_type[i]= b_sub_mb_type_info[ h->sub_mb_type[i] ].type;\n }\n if( IS_DIRECT(h->sub_mb_type[0]|h->sub_mb_type[1]|h->sub_mb_type[2]|h->sub_mb_type[3])) {\n ff_h264_pred_direct_motion(h, &mb_type);\n h->ref_cache[0][scan8[4]] =\n h->ref_cache[1][scan8[4]] =\n h->ref_cache[0][scan8[12]] =\n h->ref_cache[1][scan8[12]] = PART_NOT_AVAILABLE;\n }\n }else{\n assert(h->slice_type_nos == AV_PICTURE_TYPE_P);\n for(i=0; i<4; i++){\n h->sub_mb_type[i]= get_ue_golomb_31(&s->gb);\n if(h->sub_mb_type[i] >=4){\n av_log(h->s.avctx, AV_LOG_ERROR, "P sub_mb_type %u out of range at %d %d\\n", h->sub_mb_type[i], s->mb_x, s->mb_y);\n return -1;\n }\n sub_partition_count[i]= p_sub_mb_type_info[ h->sub_mb_type[i] ].partition_count;\n h->sub_mb_type[i]= p_sub_mb_type_info[ h->sub_mb_type[i] ].type;\n }\n }\n for(list=0; list<h->list_count; list++){\n int ref_count= IS_REF0(mb_type) ? 1 : h->ref_count[list];\n for(i=0; i<4; i++){\n if(IS_DIRECT(h->sub_mb_type[i])) continue;\n if(IS_DIR(h->sub_mb_type[i], 0, list)){\n unsigned int tmp;\n if(ref_count == 1){\n tmp= 0;\n }else if(ref_count == 2){\n tmp= get_bits1(&s->gb)^1;\n }else{\n tmp= get_ue_golomb_31(&s->gb);\n if(tmp>=ref_count){\n av_log(h->s.avctx, AV_LOG_ERROR, "ref %u overflow\\n", tmp);\n return -1;\n }\n }\n ref[list][i]= tmp;\n }else{\n ref[list][i] = -1;\n }\n }\n }\n if(dct8x8_allowed)\n dct8x8_allowed = get_dct8x8_allowed(h);\n for(list=0; list<h->list_count; list++){\n for(i=0; i<4; i++){\n if(IS_DIRECT(h->sub_mb_type[i])) {\n h->ref_cache[list][ scan8[4*i] ] = h->ref_cache[list][ scan8[4*i]+1 ];\n continue;\n }\n h->ref_cache[list][ scan8[4*i] ]=h->ref_cache[list][ scan8[4*i]+1 ]=\n h->ref_cache[list][ scan8[4*i]+8 ]=h->ref_cache[list][ scan8[4*i]+9 ]= ref[list][i];\n if(IS_DIR(h->sub_mb_type[i], 0, list)){\n const int sub_mb_type= h->sub_mb_type[i];\n const int block_width= (sub_mb_type & (MB_TYPE_16x16|MB_TYPE_16x8)) ? 2 : 1;\n for(j=0; j<sub_partition_count[i]; j++){\n int mx, my;\n const int index= 4*i + block_width*j;\n int16_t (* mv_cache)[2]= &h->mv_cache[list][ scan8[index] ];\n pred_motion(h, index, block_width, list, h->ref_cache[list][ scan8[index] ], &mx, &my);\n mx += get_se_golomb(&s->gb);\n my += get_se_golomb(&s->gb);\n tprintf(s->avctx, "final mv:%d %d\\n", mx, my);\n if(IS_SUB_8X8(sub_mb_type)){\n mv_cache[ 1 ][0]=\n mv_cache[ 8 ][0]= mv_cache[ 9 ][0]= mx;\n mv_cache[ 1 ][1]=\n mv_cache[ 8 ][1]= mv_cache[ 9 ][1]= my;\n }else if(IS_SUB_8X4(sub_mb_type)){\n mv_cache[ 1 ][0]= mx;\n mv_cache[ 1 ][1]= my;\n }else if(IS_SUB_4X8(sub_mb_type)){\n mv_cache[ 8 ][0]= mx;\n mv_cache[ 8 ][1]= my;\n }\n mv_cache[ 0 ][0]= mx;\n mv_cache[ 0 ][1]= my;\n }\n }else{\n uint32_t *p= (uint32_t *)&h->mv_cache[list][ scan8[4*i] ][0];\n p[0] = p[1]=\n p[8] = p[9]= 0;\n }\n }\n }\n }else if(IS_DIRECT(mb_type)){\n ff_h264_pred_direct_motion(h, &mb_type);\n dct8x8_allowed &= h->sps.direct_8x8_inference_flag;\n }else{\n int list, mx, my, i;\n if(IS_16X16(mb_type)){\n for(list=0; list<h->list_count; list++){\n unsigned int val;\n if(IS_DIR(mb_type, 0, list)){\n if(h->ref_count[list]==1){\n val= 0;\n }else if(h->ref_count[list]==2){\n val= get_bits1(&s->gb)^1;\n }else{\n val= get_ue_golomb_31(&s->gb);\n if(val >= h->ref_count[list]){\n av_log(h->s.avctx, AV_LOG_ERROR, "ref %u overflow\\n", val);\n return -1;\n }\n }\n fill_rectangle(&h->ref_cache[list][ scan8[0] ], 4, 4, 8, val, 1);\n }\n }\n for(list=0; list<h->list_count; list++){\n if(IS_DIR(mb_type, 0, list)){\n pred_motion(h, 0, 4, list, h->ref_cache[list][ scan8[0] ], &mx, &my);\n mx += get_se_golomb(&s->gb);\n my += get_se_golomb(&s->gb);\n tprintf(s->avctx, "final mv:%d %d\\n", mx, my);\n fill_rectangle(h->mv_cache[list][ scan8[0] ], 4, 4, 8, pack16to32(mx,my), 4);\n }\n }\n }\n else if(IS_16X8(mb_type)){\n for(list=0; list<h->list_count; list++){\n for(i=0; i<2; i++){\n unsigned int val;\n if(IS_DIR(mb_type, i, list)){\n if(h->ref_count[list] == 1){\n val= 0;\n }else if(h->ref_count[list] == 2){\n val= get_bits1(&s->gb)^1;\n }else{\n val= get_ue_golomb_31(&s->gb);\n if(val >= h->ref_count[list]){\n av_log(h->s.avctx, AV_LOG_ERROR, "ref %u overflow\\n", val);\n return -1;\n }\n }\n }else\n val= LIST_NOT_USED&0xFF;\n fill_rectangle(&h->ref_cache[list][ scan8[0] + 16*i ], 4, 2, 8, val, 1);\n }\n }\n for(list=0; list<h->list_count; list++){\n for(i=0; i<2; i++){\n unsigned int val;\n if(IS_DIR(mb_type, i, list)){\n pred_16x8_motion(h, 8*i, list, h->ref_cache[list][scan8[0] + 16*i], &mx, &my);\n mx += get_se_golomb(&s->gb);\n my += get_se_golomb(&s->gb);\n tprintf(s->avctx, "final mv:%d %d\\n", mx, my);\n val= pack16to32(mx,my);\n }else\n val=0;\n fill_rectangle(h->mv_cache[list][ scan8[0] + 16*i ], 4, 2, 8, val, 4);\n }\n }\n }else{\n assert(IS_8X16(mb_type));\n for(list=0; list<h->list_count; list++){\n for(i=0; i<2; i++){\n unsigned int val;\n if(IS_DIR(mb_type, i, list)){\n if(h->ref_count[list]==1){\n val= 0;\n }else if(h->ref_count[list]==2){\n val= get_bits1(&s->gb)^1;\n }else{\n val= get_ue_golomb_31(&s->gb);\n if(val >= h->ref_count[list]){\n av_log(h->s.avctx, AV_LOG_ERROR, "ref %u overflow\\n", val);\n return -1;\n }\n }\n }else\n val= LIST_NOT_USED&0xFF;\n fill_rectangle(&h->ref_cache[list][ scan8[0] + 2*i ], 2, 4, 8, val, 1);\n }\n }\n for(list=0; list<h->list_count; list++){\n for(i=0; i<2; i++){\n unsigned int val;\n if(IS_DIR(mb_type, i, list)){\n pred_8x16_motion(h, i*4, list, h->ref_cache[list][ scan8[0] + 2*i ], &mx, &my);\n mx += get_se_golomb(&s->gb);\n my += get_se_golomb(&s->gb);\n tprintf(s->avctx, "final mv:%d %d\\n", mx, my);\n val= pack16to32(mx,my);\n }else\n val=0;\n fill_rectangle(h->mv_cache[list][ scan8[0] + 2*i ], 2, 4, 8, val, 4);\n }\n }\n }\n }\n if(IS_INTER(mb_type))\n write_back_motion(h, mb_type);\n if(!IS_INTRA16x16(mb_type)){\n cbp= get_ue_golomb(&s->gb);\n if(decode_chroma){\n if(cbp > 47){\n av_log(h->s.avctx, AV_LOG_ERROR, "cbp too large (%u) at %d %d\\n", cbp, s->mb_x, s->mb_y);\n return -1;\n }\n if(IS_INTRA4x4(mb_type)) cbp= golomb_to_intra4x4_cbp[cbp];\n else cbp= golomb_to_inter_cbp [cbp];\n }else{\n if(cbp > 15){\n av_log(h->s.avctx, AV_LOG_ERROR, "cbp too large (%u) at %d %d\\n", cbp, s->mb_x, s->mb_y);\n return -1;\n }\n if(IS_INTRA4x4(mb_type)) cbp= golomb_to_intra4x4_cbp_gray[cbp];\n else cbp= golomb_to_inter_cbp_gray[cbp];\n }\n }\n if(dct8x8_allowed && (cbp&15) && !IS_INTRA(mb_type)){\n mb_type |= MB_TYPE_8x8DCT*get_bits1(&s->gb);\n }\n h->cbp=\n h->cbp_table[mb_xy]= cbp;\n s->current_picture.mb_type[mb_xy]= mb_type;\n if(cbp || IS_INTRA16x16(mb_type)){\n int i4x4, chroma_idx;\n int dquant;\n int ret;\n GetBitContext *gb= IS_INTRA(mb_type) ? h->intra_gb_ptr : h->inter_gb_ptr;\n const uint8_t *scan, *scan8x8;\n const int max_qp = 51 + 6*(h->sps.bit_depth_luma-8);\n if(IS_INTERLACED(mb_type)){\n scan8x8= s->qscale ? h->field_scan8x8_cavlc : h->field_scan8x8_cavlc_q0;\n scan= s->qscale ? h->field_scan : h->field_scan_q0;\n }else{\n scan8x8= s->qscale ? h->zigzag_scan8x8_cavlc : h->zigzag_scan8x8_cavlc_q0;\n scan= s->qscale ? h->zigzag_scan : h->zigzag_scan_q0;\n }\n dquant= get_se_golomb(&s->gb);\n s->qscale += dquant;\n if(((unsigned)s->qscale) > max_qp){\n if(s->qscale<0) s->qscale+= max_qp+1;\n else s->qscale-= max_qp+1;\n if(((unsigned)s->qscale) > max_qp){\n av_log(h->s.avctx, AV_LOG_ERROR, "dquant out of range (%d) at %d %d\\n", dquant, s->mb_x, s->mb_y);\n return -1;\n }\n }\n h->chroma_qp[0]= get_chroma_qp(h, 0, s->qscale);\n h->chroma_qp[1]= get_chroma_qp(h, 1, s->qscale);\n if( (ret = decode_luma_residual(h, gb, scan, scan8x8, pixel_shift, mb_type, cbp, 0)) < 0 ){\n return -1;\n }\n h->cbp_table[mb_xy] |= ret << 12;\n if(CHROMA444){\n if( decode_luma_residual(h, gb, scan, scan8x8, pixel_shift, mb_type, cbp, 1) < 0 ){\n return -1;\n }\n if( decode_luma_residual(h, gb, scan, scan8x8, pixel_shift, mb_type, cbp, 2) < 0 ){\n return -1;\n }\n } else {\n if(cbp&0x30){\n for(chroma_idx=0; chroma_idx<2; chroma_idx++)\n if( decode_residual(h, gb, h->mb + ((256 + 16*16*chroma_idx) << pixel_shift), CHROMA_DC_BLOCK_INDEX+chroma_idx, chroma_dc_scan, NULL, 4) < 0){\n return -1;\n }\n }\n if(cbp&0x20){\n for(chroma_idx=0; chroma_idx<2; chroma_idx++){\n const uint32_t *qmul = h->dequant4_coeff[chroma_idx+1+(IS_INTRA( mb_type ) ? 0:3)][h->chroma_qp[chroma_idx]];\n for(i4x4=0; i4x4<4; i4x4++){\n const int index= 16 + 16*chroma_idx + i4x4;\n if( decode_residual(h, gb, h->mb + (16*index << pixel_shift), index, scan + 1, qmul, 15) < 0){\n return -1;\n }\n }\n }\n }else{\n fill_rectangle(&h->non_zero_count_cache[scan8[16]], 4, 4, 8, 0, 1);\n fill_rectangle(&h->non_zero_count_cache[scan8[32]], 4, 4, 8, 0, 1);\n }\n }\n }else{\n fill_rectangle(&h->non_zero_count_cache[scan8[ 0]], 4, 4, 8, 0, 1);\n fill_rectangle(&h->non_zero_count_cache[scan8[16]], 4, 4, 8, 0, 1);\n fill_rectangle(&h->non_zero_count_cache[scan8[32]], 4, 4, 8, 0, 1);\n }\n s->current_picture.qscale_table[mb_xy]= s->qscale;\n write_back_non_zero_count(h);\n if(MB_MBAFF){\n h->ref_count[0] >>= 1;\n h->ref_count[1] >>= 1;\n }\n return 0;\n}', 'static void fill_decode_neighbors(H264Context *h, int mb_type){\n MpegEncContext * const s = &h->s;\n const int mb_xy= h->mb_xy;\n int topleft_xy, top_xy, topright_xy, left_xy[2];\n static const uint8_t left_block_options[4][32]={\n {0,1,2,3,7,10,8,11,3+0*4, 3+1*4, 3+2*4, 3+3*4, 1+4*4, 1+8*4, 1+5*4, 1+9*4},\n {2,2,3,3,8,11,8,11,3+2*4, 3+2*4, 3+3*4, 3+3*4, 1+5*4, 1+9*4, 1+5*4, 1+9*4},\n {0,0,1,1,7,10,7,10,3+0*4, 3+0*4, 3+1*4, 3+1*4, 1+4*4, 1+8*4, 1+4*4, 1+8*4},\n {0,2,0,2,7,10,7,10,3+0*4, 3+2*4, 3+0*4, 3+2*4, 1+4*4, 1+8*4, 1+4*4, 1+8*4}\n };\n h->topleft_partition= -1;\n top_xy = mb_xy - (s->mb_stride << MB_FIELD);\n topleft_xy = top_xy - 1;\n topright_xy= top_xy + 1;\n left_xy[1] = left_xy[0] = mb_xy-1;\n h->left_block = left_block_options[0];\n if(FRAME_MBAFF){\n const int left_mb_field_flag = IS_INTERLACED(s->current_picture.mb_type[mb_xy-1]);\n const int curr_mb_field_flag = IS_INTERLACED(mb_type);\n if(s->mb_y&1){\n if (left_mb_field_flag != curr_mb_field_flag) {\n left_xy[1] = left_xy[0] = mb_xy - s->mb_stride - 1;\n if (curr_mb_field_flag) {\n left_xy[1] += s->mb_stride;\n h->left_block = left_block_options[3];\n } else {\n topleft_xy += s->mb_stride;\n h->topleft_partition = 0;\n h->left_block = left_block_options[1];\n }\n }\n }else{\n if(curr_mb_field_flag){\n topleft_xy += s->mb_stride & (((s->current_picture.mb_type[top_xy - 1]>>7)&1)-1);\n topright_xy += s->mb_stride & (((s->current_picture.mb_type[top_xy + 1]>>7)&1)-1);\n top_xy += s->mb_stride & (((s->current_picture.mb_type[top_xy ]>>7)&1)-1);\n }\n if (left_mb_field_flag != curr_mb_field_flag) {\n if (curr_mb_field_flag) {\n left_xy[1] += s->mb_stride;\n h->left_block = left_block_options[3];\n } else {\n h->left_block = left_block_options[2];\n }\n }\n }\n }\n h->topleft_mb_xy = topleft_xy;\n h->top_mb_xy = top_xy;\n h->topright_mb_xy= topright_xy;\n h->left_mb_xy[0] = left_xy[0];\n h->left_mb_xy[1] = left_xy[1];\n h->topleft_type = s->current_picture.mb_type[topleft_xy] ;\n h->top_type = s->current_picture.mb_type[top_xy] ;\n h->topright_type= s->current_picture.mb_type[topright_xy];\n h->left_type[0] = s->current_picture.mb_type[left_xy[0]] ;\n h->left_type[1] = s->current_picture.mb_type[left_xy[1]] ;\n if(FMO){\n if(h->slice_table[topleft_xy ] != h->slice_num) h->topleft_type = 0;\n if(h->slice_table[top_xy ] != h->slice_num) h->top_type = 0;\n if(h->slice_table[left_xy[0] ] != h->slice_num) h->left_type[0] = h->left_type[1] = 0;\n }else{\n if(h->slice_table[topleft_xy ] != h->slice_num){\n h->topleft_type = 0;\n if(h->slice_table[top_xy ] != h->slice_num) h->top_type = 0;\n if(h->slice_table[left_xy[0] ] != h->slice_num) h->left_type[0] = h->left_type[1] = 0;\n }\n }\n if(h->slice_table[topright_xy] != h->slice_num) h->topright_type= 0;\n}', 'static void fill_decode_caches(H264Context *h, int mb_type){\n MpegEncContext * const s = &h->s;\n int topleft_xy, top_xy, topright_xy, left_xy[2];\n int topleft_type, top_type, topright_type, left_type[2];\n const uint8_t * left_block= h->left_block;\n int i;\n topleft_xy = h->topleft_mb_xy ;\n top_xy = h->top_mb_xy ;\n topright_xy = h->topright_mb_xy;\n left_xy[0] = h->left_mb_xy[0] ;\n left_xy[1] = h->left_mb_xy[1] ;\n topleft_type = h->topleft_type ;\n top_type = h->top_type ;\n topright_type= h->topright_type ;\n left_type[0] = h->left_type[0] ;\n left_type[1] = h->left_type[1] ;\n if(!IS_SKIP(mb_type)){\n if(IS_INTRA(mb_type)){\n int type_mask= h->pps.constrained_intra_pred ? IS_INTRA(-1) : -1;\n h->topleft_samples_available=\n h->top_samples_available=\n h->left_samples_available= 0xFFFF;\n h->topright_samples_available= 0xEEEA;\n if(!(top_type & type_mask)){\n h->topleft_samples_available= 0xB3FF;\n h->top_samples_available= 0x33FF;\n h->topright_samples_available= 0x26EA;\n }\n if(IS_INTERLACED(mb_type) != IS_INTERLACED(left_type[0])){\n if(IS_INTERLACED(mb_type)){\n if(!(left_type[0] & type_mask)){\n h->topleft_samples_available&= 0xDFFF;\n h->left_samples_available&= 0x5FFF;\n }\n if(!(left_type[1] & type_mask)){\n h->topleft_samples_available&= 0xFF5F;\n h->left_samples_available&= 0xFF5F;\n }\n }else{\n int left_typei = s->current_picture.mb_type[left_xy[0] + s->mb_stride];\n assert(left_xy[0] == left_xy[1]);\n if(!((left_typei & type_mask) && (left_type[0] & type_mask))){\n h->topleft_samples_available&= 0xDF5F;\n h->left_samples_available&= 0x5F5F;\n }\n }\n }else{\n if(!(left_type[0] & type_mask)){\n h->topleft_samples_available&= 0xDF5F;\n h->left_samples_available&= 0x5F5F;\n }\n }\n if(!(topleft_type & type_mask))\n h->topleft_samples_available&= 0x7FFF;\n if(!(topright_type & type_mask))\n h->topright_samples_available&= 0xFBFF;\n if(IS_INTRA4x4(mb_type)){\n if(IS_INTRA4x4(top_type)){\n AV_COPY32(h->intra4x4_pred_mode_cache+4+8*0, h->intra4x4_pred_mode + h->mb2br_xy[top_xy]);\n }else{\n h->intra4x4_pred_mode_cache[4+8*0]=\n h->intra4x4_pred_mode_cache[5+8*0]=\n h->intra4x4_pred_mode_cache[6+8*0]=\n h->intra4x4_pred_mode_cache[7+8*0]= 2 - 3*!(top_type & type_mask);\n }\n for(i=0; i<2; i++){\n if(IS_INTRA4x4(left_type[i])){\n int8_t *mode= h->intra4x4_pred_mode + h->mb2br_xy[left_xy[i]];\n h->intra4x4_pred_mode_cache[3+8*1 + 2*8*i]= mode[6-left_block[0+2*i]];\n h->intra4x4_pred_mode_cache[3+8*2 + 2*8*i]= mode[6-left_block[1+2*i]];\n }else{\n h->intra4x4_pred_mode_cache[3+8*1 + 2*8*i]=\n h->intra4x4_pred_mode_cache[3+8*2 + 2*8*i]= 2 - 3*!(left_type[i] & type_mask);\n }\n }\n }\n }\n if(top_type){\n AV_COPY32(&h->non_zero_count_cache[4+8* 0], &h->non_zero_count[top_xy][4*3]);\n if(CHROMA444){\n AV_COPY32(&h->non_zero_count_cache[4+8* 5], &h->non_zero_count[top_xy][4* 7]);\n AV_COPY32(&h->non_zero_count_cache[4+8*10], &h->non_zero_count[top_xy][4*11]);\n }else{\n AV_COPY32(&h->non_zero_count_cache[4+8* 5], &h->non_zero_count[top_xy][4* 5]);\n AV_COPY32(&h->non_zero_count_cache[4+8*10], &h->non_zero_count[top_xy][4* 9]);\n }\n }else{\n uint32_t top_empty = CABAC && !IS_INTRA(mb_type) ? 0 : 0x40404040;\n AV_WN32A(&h->non_zero_count_cache[4+8* 0], top_empty);\n AV_WN32A(&h->non_zero_count_cache[4+8* 5], top_empty);\n AV_WN32A(&h->non_zero_count_cache[4+8*10], top_empty);\n }\n for (i=0; i<2; i++) {\n if(left_type[i]){\n h->non_zero_count_cache[3+8* 1 + 2*8*i]= h->non_zero_count[left_xy[i]][left_block[8+0+2*i]];\n h->non_zero_count_cache[3+8* 2 + 2*8*i]= h->non_zero_count[left_xy[i]][left_block[8+1+2*i]];\n if(CHROMA444){\n h->non_zero_count_cache[3+8* 6 + 2*8*i]= h->non_zero_count[left_xy[i]][left_block[8+0+2*i]+4*4];\n h->non_zero_count_cache[3+8* 7 + 2*8*i]= h->non_zero_count[left_xy[i]][left_block[8+1+2*i]+4*4];\n h->non_zero_count_cache[3+8*11 + 2*8*i]= h->non_zero_count[left_xy[i]][left_block[8+0+2*i]+8*4];\n h->non_zero_count_cache[3+8*12 + 2*8*i]= h->non_zero_count[left_xy[i]][left_block[8+1+2*i]+8*4];\n }else{\n h->non_zero_count_cache[3+8* 6 + 8*i]= h->non_zero_count[left_xy[i]][left_block[8+4+2*i]];\n h->non_zero_count_cache[3+8*11 + 8*i]= h->non_zero_count[left_xy[i]][left_block[8+5+2*i]];\n }\n }else{\n h->non_zero_count_cache[3+8* 1 + 2*8*i]=\n h->non_zero_count_cache[3+8* 2 + 2*8*i]=\n h->non_zero_count_cache[3+8* 6 + 2*8*i]=\n h->non_zero_count_cache[3+8* 7 + 2*8*i]=\n h->non_zero_count_cache[3+8*11 + 2*8*i]=\n h->non_zero_count_cache[3+8*12 + 2*8*i]= CABAC && !IS_INTRA(mb_type) ? 0 : 64;\n }\n }\n if( CABAC ) {\n if(top_type) {\n h->top_cbp = h->cbp_table[top_xy];\n } else {\n h->top_cbp = IS_INTRA(mb_type) ? 0x7CF : 0x00F;\n }\n if (left_type[0]) {\n h->left_cbp = (h->cbp_table[left_xy[0]] & 0x7F0)\n | ((h->cbp_table[left_xy[0]]>>(left_block[0]&(~1)))&2)\n | (((h->cbp_table[left_xy[1]]>>(left_block[2]&(~1)))&2) << 2);\n } else {\n h->left_cbp = IS_INTRA(mb_type) ? 0x7CF : 0x00F;\n }\n }\n }\n if(IS_INTER(mb_type) || (IS_DIRECT(mb_type) && h->direct_spatial_mv_pred)){\n int list;\n for(list=0; list<h->list_count; list++){\n if(!USES_LIST(mb_type, list)){\n continue;\n }\n assert(!(IS_DIRECT(mb_type) && !h->direct_spatial_mv_pred));\n h->mv_cache_clean[list]= 0;\n if(USES_LIST(top_type, list)){\n const int b_xy= h->mb2b_xy[top_xy] + 3*h->b_stride;\n AV_COPY128(h->mv_cache[list][scan8[0] + 0 - 1*8], s->current_picture.motion_val[list][b_xy + 0]);\n h->ref_cache[list][scan8[0] + 0 - 1*8]=\n h->ref_cache[list][scan8[0] + 1 - 1*8]= s->current_picture.ref_index[list][4*top_xy + 2];\n h->ref_cache[list][scan8[0] + 2 - 1*8]=\n h->ref_cache[list][scan8[0] + 3 - 1*8]= s->current_picture.ref_index[list][4*top_xy + 3];\n }else{\n AV_ZERO128(h->mv_cache[list][scan8[0] + 0 - 1*8]);\n AV_WN32A(&h->ref_cache[list][scan8[0] + 0 - 1*8], ((top_type ? LIST_NOT_USED : PART_NOT_AVAILABLE)&0xFF)*0x01010101);\n }\n if(mb_type & (MB_TYPE_16x8|MB_TYPE_8x8)){\n for(i=0; i<2; i++){\n int cache_idx = scan8[0] - 1 + i*2*8;\n if(USES_LIST(left_type[i], list)){\n const int b_xy= h->mb2b_xy[left_xy[i]] + 3;\n const int b8_xy= 4*left_xy[i] + 1;\n AV_COPY32(h->mv_cache[list][cache_idx ], s->current_picture.motion_val[list][b_xy + h->b_stride*left_block[0+i*2]]);\n AV_COPY32(h->mv_cache[list][cache_idx+8], s->current_picture.motion_val[list][b_xy + h->b_stride*left_block[1+i*2]]);\n h->ref_cache[list][cache_idx ]= s->current_picture.ref_index[list][b8_xy + (left_block[0+i*2]&~1)];\n h->ref_cache[list][cache_idx+8]= s->current_picture.ref_index[list][b8_xy + (left_block[1+i*2]&~1)];\n }else{\n AV_ZERO32(h->mv_cache [list][cache_idx ]);\n AV_ZERO32(h->mv_cache [list][cache_idx+8]);\n h->ref_cache[list][cache_idx ]=\n h->ref_cache[list][cache_idx+8]= (left_type[i]) ? LIST_NOT_USED : PART_NOT_AVAILABLE;\n }\n }\n }else{\n if(USES_LIST(left_type[0], list)){\n const int b_xy= h->mb2b_xy[left_xy[0]] + 3;\n const int b8_xy= 4*left_xy[0] + 1;\n AV_COPY32(h->mv_cache[list][scan8[0] - 1], s->current_picture.motion_val[list][b_xy + h->b_stride*left_block[0]]);\n h->ref_cache[list][scan8[0] - 1]= s->current_picture.ref_index[list][b8_xy + (left_block[0]&~1)];\n }else{\n AV_ZERO32(h->mv_cache [list][scan8[0] - 1]);\n h->ref_cache[list][scan8[0] - 1]= left_type[0] ? LIST_NOT_USED : PART_NOT_AVAILABLE;\n }\n }\n if(USES_LIST(topright_type, list)){\n const int b_xy= h->mb2b_xy[topright_xy] + 3*h->b_stride;\n AV_COPY32(h->mv_cache[list][scan8[0] + 4 - 1*8], s->current_picture.motion_val[list][b_xy]);\n h->ref_cache[list][scan8[0] + 4 - 1*8]= s->current_picture.ref_index[list][4*topright_xy + 2];\n }else{\n AV_ZERO32(h->mv_cache [list][scan8[0] + 4 - 1*8]);\n h->ref_cache[list][scan8[0] + 4 - 1*8]= topright_type ? LIST_NOT_USED : PART_NOT_AVAILABLE;\n }\n if(h->ref_cache[list][scan8[0] + 4 - 1*8] < 0){\n if(USES_LIST(topleft_type, list)){\n const int b_xy = h->mb2b_xy [topleft_xy] + 3 + h->b_stride + (h->topleft_partition & 2*h->b_stride);\n const int b8_xy= 4*topleft_xy + 1 + (h->topleft_partition & 2);\n AV_COPY32(h->mv_cache[list][scan8[0] - 1 - 1*8], s->current_picture.motion_val[list][b_xy]);\n h->ref_cache[list][scan8[0] - 1 - 1*8]= s->current_picture.ref_index[list][b8_xy];\n }else{\n AV_ZERO32(h->mv_cache[list][scan8[0] - 1 - 1*8]);\n h->ref_cache[list][scan8[0] - 1 - 1*8]= topleft_type ? LIST_NOT_USED : PART_NOT_AVAILABLE;\n }\n }\n if((mb_type&(MB_TYPE_SKIP|MB_TYPE_DIRECT2)) && !FRAME_MBAFF)\n continue;\n if(!(mb_type&(MB_TYPE_SKIP|MB_TYPE_DIRECT2))) {\n h->ref_cache[list][scan8[4 ]] =\n h->ref_cache[list][scan8[12]] = PART_NOT_AVAILABLE;\n AV_ZERO32(h->mv_cache [list][scan8[4 ]]);\n AV_ZERO32(h->mv_cache [list][scan8[12]]);\n if( CABAC ) {\n if(USES_LIST(top_type, list)){\n const int b_xy= h->mb2br_xy[top_xy];\n AV_COPY64(h->mvd_cache[list][scan8[0] + 0 - 1*8], h->mvd_table[list][b_xy + 0]);\n }else{\n AV_ZERO64(h->mvd_cache[list][scan8[0] + 0 - 1*8]);\n }\n if(USES_LIST(left_type[0], list)){\n const int b_xy= h->mb2br_xy[left_xy[0]] + 6;\n AV_COPY16(h->mvd_cache[list][scan8[0] - 1 + 0*8], h->mvd_table[list][b_xy - left_block[0]]);\n AV_COPY16(h->mvd_cache[list][scan8[0] - 1 + 1*8], h->mvd_table[list][b_xy - left_block[1]]);\n }else{\n AV_ZERO16(h->mvd_cache [list][scan8[0] - 1 + 0*8]);\n AV_ZERO16(h->mvd_cache [list][scan8[0] - 1 + 1*8]);\n }\n if(USES_LIST(left_type[1], list)){\n const int b_xy= h->mb2br_xy[left_xy[1]] + 6;\n AV_COPY16(h->mvd_cache[list][scan8[0] - 1 + 2*8], h->mvd_table[list][b_xy - left_block[2]]);\n AV_COPY16(h->mvd_cache[list][scan8[0] - 1 + 3*8], h->mvd_table[list][b_xy - left_block[3]]);\n }else{\n AV_ZERO16(h->mvd_cache [list][scan8[0] - 1 + 2*8]);\n AV_ZERO16(h->mvd_cache [list][scan8[0] - 1 + 3*8]);\n }\n AV_ZERO16(h->mvd_cache [list][scan8[4 ]]);\n AV_ZERO16(h->mvd_cache [list][scan8[12]]);\n if(h->slice_type_nos == AV_PICTURE_TYPE_B){\n fill_rectangle(&h->direct_cache[scan8[0]], 4, 4, 8, MB_TYPE_16x16>>1, 1);\n if(IS_DIRECT(top_type)){\n AV_WN32A(&h->direct_cache[scan8[0] - 1*8], 0x01010101u*(MB_TYPE_DIRECT2>>1));\n }else if(IS_8X8(top_type)){\n int b8_xy = 4*top_xy;\n h->direct_cache[scan8[0] + 0 - 1*8]= h->direct_table[b8_xy + 2];\n h->direct_cache[scan8[0] + 2 - 1*8]= h->direct_table[b8_xy + 3];\n }else{\n AV_WN32A(&h->direct_cache[scan8[0] - 1*8], 0x01010101*(MB_TYPE_16x16>>1));\n }\n if(IS_DIRECT(left_type[0]))\n h->direct_cache[scan8[0] - 1 + 0*8]= MB_TYPE_DIRECT2>>1;\n else if(IS_8X8(left_type[0]))\n h->direct_cache[scan8[0] - 1 + 0*8]= h->direct_table[4*left_xy[0] + 1 + (left_block[0]&~1)];\n else\n h->direct_cache[scan8[0] - 1 + 0*8]= MB_TYPE_16x16>>1;\n if(IS_DIRECT(left_type[1]))\n h->direct_cache[scan8[0] - 1 + 2*8]= MB_TYPE_DIRECT2>>1;\n else if(IS_8X8(left_type[1]))\n h->direct_cache[scan8[0] - 1 + 2*8]= h->direct_table[4*left_xy[1] + 1 + (left_block[2]&~1)];\n else\n h->direct_cache[scan8[0] - 1 + 2*8]= MB_TYPE_16x16>>1;\n }\n }\n }\n if(FRAME_MBAFF){\n#define MAP_MVS\\\n MAP_F2F(scan8[0] - 1 - 1*8, topleft_type)\\\n MAP_F2F(scan8[0] + 0 - 1*8, top_type)\\\n MAP_F2F(scan8[0] + 1 - 1*8, top_type)\\\n MAP_F2F(scan8[0] + 2 - 1*8, top_type)\\\n MAP_F2F(scan8[0] + 3 - 1*8, top_type)\\\n MAP_F2F(scan8[0] + 4 - 1*8, topright_type)\\\n MAP_F2F(scan8[0] - 1 + 0*8, left_type[0])\\\n MAP_F2F(scan8[0] - 1 + 1*8, left_type[0])\\\n MAP_F2F(scan8[0] - 1 + 2*8, left_type[1])\\\n MAP_F2F(scan8[0] - 1 + 3*8, left_type[1])\n if(MB_FIELD){\n#define MAP_F2F(idx, mb_type)\\\n if(!IS_INTERLACED(mb_type) && h->ref_cache[list][idx] >= 0){\\\n h->ref_cache[list][idx] <<= 1;\\\n h->mv_cache[list][idx][1] /= 2;\\\n h->mvd_cache[list][idx][1] >>=1;\\\n }\n MAP_MVS\n#undef MAP_F2F\n }else{\n#define MAP_F2F(idx, mb_type)\\\n if(IS_INTERLACED(mb_type) && h->ref_cache[list][idx] >= 0){\\\n h->ref_cache[list][idx] >>= 1;\\\n h->mv_cache[list][idx][1] <<= 1;\\\n h->mvd_cache[list][idx][1] <<= 1;\\\n }\n MAP_MVS\n#undef MAP_F2F\n }\n }\n }\n }\n h->neighbor_transform_size= !!IS_8x8DCT(top_type) + !!IS_8x8DCT(left_type[0]);\n}'] |
23,190 | 0 | https://github.com/nginx/nginx/blob/c67124190c9caf42c9d63b889945f73ccafa3ac6/src/http/ngx_http_request.c/#L3409 | static ngx_int_t
ngx_http_post_action(ngx_http_request_t *r)
{
ngx_http_core_loc_conf_t *clcf;
clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
if (clcf->post_action.data == NULL) {
return NGX_DECLINED;
}
if (r->post_action && r->uri_changes == 0) {
return NGX_DECLINED;
}
ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
"post action: \"%V\"", &clcf->post_action);
r->main->count--;
r->http_version = NGX_HTTP_VERSION_9;
r->header_only = 1;
r->post_action = 1;
r->read_event_handler = ngx_http_block_reading;
if (clcf->post_action.data[0] == '/') {
ngx_http_internal_redirect(r, &clcf->post_action, NULL);
} else {
ngx_http_named_location(r, &clcf->post_action);
}
return NGX_OK;
} | ['static void\nngx_http_upstream_process_header(ngx_http_request_t *r, ngx_http_upstream_t *u)\n{\n ssize_t n;\n ngx_int_t rc;\n ngx_connection_t *c;\n c = u->peer.connection;\n ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0,\n "http upstream process header");\n c->log->action = "reading response header from upstream";\n if (c->read->timedout) {\n ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_TIMEOUT);\n return;\n }\n if (!u->request_sent && ngx_http_upstream_test_connect(c) != NGX_OK) {\n ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_ERROR);\n return;\n }\n if (u->buffer.start == NULL) {\n u->buffer.start = ngx_palloc(r->pool, u->conf->buffer_size);\n if (u->buffer.start == NULL) {\n ngx_http_upstream_finalize_request(r, u,\n NGX_HTTP_INTERNAL_SERVER_ERROR);\n return;\n }\n u->buffer.pos = u->buffer.start;\n u->buffer.last = u->buffer.start;\n u->buffer.end = u->buffer.start + u->conf->buffer_size;\n u->buffer.temporary = 1;\n u->buffer.tag = u->output.tag;\n if (ngx_list_init(&u->headers_in.headers, r->pool, 8,\n sizeof(ngx_table_elt_t))\n != NGX_OK)\n {\n ngx_http_upstream_finalize_request(r, u,\n NGX_HTTP_INTERNAL_SERVER_ERROR);\n return;\n }\n if (ngx_list_init(&u->headers_in.trailers, r->pool, 2,\n sizeof(ngx_table_elt_t))\n != NGX_OK)\n {\n ngx_http_upstream_finalize_request(r, u,\n NGX_HTTP_INTERNAL_SERVER_ERROR);\n return;\n }\n#if (NGX_HTTP_CACHE)\n if (r->cache) {\n u->buffer.pos += r->cache->header_start;\n u->buffer.last = u->buffer.pos;\n }\n#endif\n }\n for ( ;; ) {\n n = c->recv(c, u->buffer.last, u->buffer.end - u->buffer.last);\n if (n == NGX_AGAIN) {\n#if 0\n ngx_add_timer(rev, u->read_timeout);\n#endif\n if (ngx_handle_read_event(c->read, 0) != NGX_OK) {\n ngx_http_upstream_finalize_request(r, u,\n NGX_HTTP_INTERNAL_SERVER_ERROR);\n return;\n }\n return;\n }\n if (n == 0) {\n ngx_log_error(NGX_LOG_ERR, c->log, 0,\n "upstream prematurely closed connection");\n }\n if (n == NGX_ERROR || n == 0) {\n ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_ERROR);\n return;\n }\n u->state->bytes_received += n;\n u->buffer.last += n;\n#if 0\n u->valid_header_in = 0;\n u->peer.cached = 0;\n#endif\n rc = u->process_header(r);\n if (rc == NGX_AGAIN) {\n if (u->buffer.last == u->buffer.end) {\n ngx_log_error(NGX_LOG_ERR, c->log, 0,\n "upstream sent too big header");\n ngx_http_upstream_next(r, u,\n NGX_HTTP_UPSTREAM_FT_INVALID_HEADER);\n return;\n }\n continue;\n }\n break;\n }\n if (rc == NGX_HTTP_UPSTREAM_INVALID_HEADER) {\n ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_INVALID_HEADER);\n return;\n }\n if (rc == NGX_ERROR) {\n ngx_http_upstream_finalize_request(r, u,\n NGX_HTTP_INTERNAL_SERVER_ERROR);\n return;\n }\n u->state->header_time = ngx_current_msec - u->state->response_time;\n if (u->headers_in.status_n >= NGX_HTTP_SPECIAL_RESPONSE) {\n if (ngx_http_upstream_test_next(r, u) == NGX_OK) {\n return;\n }\n if (ngx_http_upstream_intercept_errors(r, u) == NGX_OK) {\n return;\n }\n }\n if (ngx_http_upstream_process_headers(r, u) != NGX_OK) {\n return;\n }\n ngx_http_upstream_send_response(r, u);\n}', "static ngx_int_t\nngx_http_upstream_process_headers(ngx_http_request_t *r, ngx_http_upstream_t *u)\n{\n ngx_str_t uri, args;\n ngx_uint_t i, flags;\n ngx_list_part_t *part;\n ngx_table_elt_t *h;\n ngx_http_upstream_header_t *hh;\n ngx_http_upstream_main_conf_t *umcf;\n umcf = ngx_http_get_module_main_conf(r, ngx_http_upstream_module);\n if (u->headers_in.x_accel_redirect\n && !(u->conf->ignore_headers & NGX_HTTP_UPSTREAM_IGN_XA_REDIRECT))\n {\n ngx_http_upstream_finalize_request(r, u, NGX_DECLINED);\n part = &u->headers_in.headers.part;\n h = part->elts;\n for (i = 0; ; i++) {\n if (i >= part->nelts) {\n if (part->next == NULL) {\n break;\n }\n part = part->next;\n h = part->elts;\n i = 0;\n }\n hh = ngx_hash_find(&umcf->headers_in_hash, h[i].hash,\n h[i].lowcase_key, h[i].key.len);\n if (hh && hh->redirect) {\n if (hh->copy_handler(r, &h[i], hh->conf) != NGX_OK) {\n ngx_http_finalize_request(r,\n NGX_HTTP_INTERNAL_SERVER_ERROR);\n return NGX_DONE;\n }\n }\n }\n uri = u->headers_in.x_accel_redirect->value;\n if (uri.data[0] == '@') {\n ngx_http_named_location(r, &uri);\n } else {\n ngx_str_null(&args);\n flags = NGX_HTTP_LOG_UNSAFE;\n if (ngx_http_parse_unsafe_uri(r, &uri, &args, &flags) != NGX_OK) {\n ngx_http_finalize_request(r, NGX_HTTP_NOT_FOUND);\n return NGX_DONE;\n }\n if (r->method != NGX_HTTP_HEAD) {\n r->method = NGX_HTTP_GET;\n r->method_name = ngx_http_core_get_method;\n }\n ngx_http_internal_redirect(r, &uri, &args);\n }\n ngx_http_finalize_request(r, NGX_DONE);\n return NGX_DONE;\n }\n part = &u->headers_in.headers.part;\n h = part->elts;\n for (i = 0; ; i++) {\n if (i >= part->nelts) {\n if (part->next == NULL) {\n break;\n }\n part = part->next;\n h = part->elts;\n i = 0;\n }\n if (ngx_hash_find(&u->conf->hide_headers_hash, h[i].hash,\n h[i].lowcase_key, h[i].key.len))\n {\n continue;\n }\n hh = ngx_hash_find(&umcf->headers_in_hash, h[i].hash,\n h[i].lowcase_key, h[i].key.len);\n if (hh) {\n if (hh->copy_handler(r, &h[i], hh->conf) != NGX_OK) {\n ngx_http_upstream_finalize_request(r, u,\n NGX_HTTP_INTERNAL_SERVER_ERROR);\n return NGX_DONE;\n }\n continue;\n }\n if (ngx_http_upstream_copy_header_line(r, &h[i], 0) != NGX_OK) {\n ngx_http_upstream_finalize_request(r, u,\n NGX_HTTP_INTERNAL_SERVER_ERROR);\n return NGX_DONE;\n }\n }\n if (r->headers_out.server && r->headers_out.server->value.data == NULL) {\n r->headers_out.server->hash = 0;\n }\n if (r->headers_out.date && r->headers_out.date->value.data == NULL) {\n r->headers_out.date->hash = 0;\n }\n r->headers_out.status = u->headers_in.status_n;\n r->headers_out.status_line = u->headers_in.status_line;\n r->headers_out.content_length_n = u->headers_in.content_length_n;\n r->disable_not_modified = !u->cacheable;\n if (u->conf->force_ranges) {\n r->allow_ranges = 1;\n r->single_range = 1;\n#if (NGX_HTTP_CACHE)\n if (r->cached) {\n r->single_range = 0;\n }\n#endif\n }\n u->length = -1;\n return NGX_OK;\n}", 'static void\nngx_http_upstream_send_response(ngx_http_request_t *r, ngx_http_upstream_t *u)\n{\n ssize_t n;\n ngx_int_t rc;\n ngx_event_pipe_t *p;\n ngx_connection_t *c;\n ngx_http_core_loc_conf_t *clcf;\n rc = ngx_http_send_header(r);\n if (rc == NGX_ERROR || rc > NGX_OK || r->post_action) {\n ngx_http_upstream_finalize_request(r, u, rc);\n return;\n }\n u->header_sent = 1;\n if (u->upgrade) {\n#if (NGX_HTTP_CACHE)\n if (r->cache) {\n ngx_http_file_cache_free(r->cache, u->pipe->temp_file);\n }\n#endif\n ngx_http_upstream_upgrade(r, u);\n return;\n }\n c = r->connection;\n if (r->header_only) {\n if (!u->buffering) {\n ngx_http_upstream_finalize_request(r, u, rc);\n return;\n }\n if (!u->cacheable && !u->store) {\n ngx_http_upstream_finalize_request(r, u, rc);\n return;\n }\n u->pipe->downstream_error = 1;\n }\n if (r->request_body && r->request_body->temp_file\n && r == r->main && !r->preserve_body)\n {\n ngx_pool_run_cleanup_file(r->pool, r->request_body->temp_file->file.fd);\n r->request_body->temp_file->file.fd = NGX_INVALID_FILE;\n }\n clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);\n if (!u->buffering) {\n#if (NGX_HTTP_CACHE)\n if (r->cache) {\n ngx_http_file_cache_free(r->cache, u->pipe->temp_file);\n }\n#endif\n if (u->input_filter == NULL) {\n u->input_filter_init = ngx_http_upstream_non_buffered_filter_init;\n u->input_filter = ngx_http_upstream_non_buffered_filter;\n u->input_filter_ctx = r;\n }\n u->read_event_handler = ngx_http_upstream_process_non_buffered_upstream;\n r->write_event_handler =\n ngx_http_upstream_process_non_buffered_downstream;\n r->limit_rate = 0;\n if (u->input_filter_init(u->input_filter_ctx) == NGX_ERROR) {\n ngx_http_upstream_finalize_request(r, u, NGX_ERROR);\n return;\n }\n if (clcf->tcp_nodelay && ngx_tcp_nodelay(c) != NGX_OK) {\n ngx_http_upstream_finalize_request(r, u, NGX_ERROR);\n return;\n }\n n = u->buffer.last - u->buffer.pos;\n if (n) {\n u->buffer.last = u->buffer.pos;\n u->state->response_length += n;\n if (u->input_filter(u->input_filter_ctx, n) == NGX_ERROR) {\n ngx_http_upstream_finalize_request(r, u, NGX_ERROR);\n return;\n }\n ngx_http_upstream_process_non_buffered_downstream(r);\n } else {\n u->buffer.pos = u->buffer.start;\n u->buffer.last = u->buffer.start;\n if (ngx_http_send_special(r, NGX_HTTP_FLUSH) == NGX_ERROR) {\n ngx_http_upstream_finalize_request(r, u, NGX_ERROR);\n return;\n }\n if (u->peer.connection->read->ready || u->length == 0) {\n ngx_http_upstream_process_non_buffered_upstream(r, u);\n }\n }\n return;\n }\n#if (NGX_HTTP_CACHE)\n if (r->cache && r->cache->file.fd != NGX_INVALID_FILE) {\n ngx_pool_run_cleanup_file(r->pool, r->cache->file.fd);\n r->cache->file.fd = NGX_INVALID_FILE;\n }\n switch (ngx_http_test_predicates(r, u->conf->no_cache)) {\n case NGX_ERROR:\n ngx_http_upstream_finalize_request(r, u, NGX_ERROR);\n return;\n case NGX_DECLINED:\n u->cacheable = 0;\n break;\n default:\n if (u->cache_status == NGX_HTTP_CACHE_BYPASS) {\n if (ngx_http_file_cache_create(r) != NGX_OK) {\n ngx_http_upstream_finalize_request(r, u, NGX_ERROR);\n return;\n }\n }\n break;\n }\n if (u->cacheable) {\n time_t now, valid;\n now = ngx_time();\n valid = r->cache->valid_sec;\n if (valid == 0) {\n valid = ngx_http_file_cache_valid(u->conf->cache_valid,\n u->headers_in.status_n);\n if (valid) {\n r->cache->valid_sec = now + valid;\n }\n }\n if (valid) {\n r->cache->date = now;\n r->cache->body_start = (u_short) (u->buffer.pos - u->buffer.start);\n if (u->headers_in.status_n == NGX_HTTP_OK\n || u->headers_in.status_n == NGX_HTTP_PARTIAL_CONTENT)\n {\n r->cache->last_modified = u->headers_in.last_modified_time;\n if (u->headers_in.etag) {\n r->cache->etag = u->headers_in.etag->value;\n } else {\n ngx_str_null(&r->cache->etag);\n }\n } else {\n r->cache->last_modified = -1;\n ngx_str_null(&r->cache->etag);\n }\n if (ngx_http_file_cache_set_header(r, u->buffer.start) != NGX_OK) {\n ngx_http_upstream_finalize_request(r, u, NGX_ERROR);\n return;\n }\n } else {\n u->cacheable = 0;\n }\n }\n ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,\n "http cacheable: %d", u->cacheable);\n if (u->cacheable == 0 && r->cache) {\n ngx_http_file_cache_free(r->cache, u->pipe->temp_file);\n }\n if (r->header_only && !u->cacheable && !u->store) {\n ngx_http_upstream_finalize_request(r, u, 0);\n return;\n }\n#endif\n p = u->pipe;\n p->output_filter = ngx_http_upstream_output_filter;\n p->output_ctx = r;\n p->tag = u->output.tag;\n p->bufs = u->conf->bufs;\n p->busy_size = u->conf->busy_buffers_size;\n p->upstream = u->peer.connection;\n p->downstream = c;\n p->pool = r->pool;\n p->log = c->log;\n p->limit_rate = u->conf->limit_rate;\n p->start_sec = ngx_time();\n p->cacheable = u->cacheable || u->store;\n p->temp_file = ngx_pcalloc(r->pool, sizeof(ngx_temp_file_t));\n if (p->temp_file == NULL) {\n ngx_http_upstream_finalize_request(r, u, NGX_ERROR);\n return;\n }\n p->temp_file->file.fd = NGX_INVALID_FILE;\n p->temp_file->file.log = c->log;\n p->temp_file->path = u->conf->temp_path;\n p->temp_file->pool = r->pool;\n if (p->cacheable) {\n p->temp_file->persistent = 1;\n#if (NGX_HTTP_CACHE)\n if (r->cache && !r->cache->file_cache->use_temp_path) {\n p->temp_file->path = r->cache->file_cache->path;\n p->temp_file->file.name = r->cache->file.name;\n }\n#endif\n } else {\n p->temp_file->log_level = NGX_LOG_WARN;\n p->temp_file->warn = "an upstream response is buffered "\n "to a temporary file";\n }\n p->max_temp_file_size = u->conf->max_temp_file_size;\n p->temp_file_write_size = u->conf->temp_file_write_size;\n#if (NGX_THREADS)\n if (clcf->aio == NGX_HTTP_AIO_THREADS && clcf->aio_write) {\n p->thread_handler = ngx_http_upstream_thread_handler;\n p->thread_ctx = r;\n }\n#endif\n p->preread_bufs = ngx_alloc_chain_link(r->pool);\n if (p->preread_bufs == NULL) {\n ngx_http_upstream_finalize_request(r, u, NGX_ERROR);\n return;\n }\n p->preread_bufs->buf = &u->buffer;\n p->preread_bufs->next = NULL;\n u->buffer.recycled = 1;\n p->preread_size = u->buffer.last - u->buffer.pos;\n if (u->cacheable) {\n p->buf_to_file = ngx_calloc_buf(r->pool);\n if (p->buf_to_file == NULL) {\n ngx_http_upstream_finalize_request(r, u, NGX_ERROR);\n return;\n }\n p->buf_to_file->start = u->buffer.start;\n p->buf_to_file->pos = u->buffer.start;\n p->buf_to_file->last = u->buffer.pos;\n p->buf_to_file->temporary = 1;\n }\n if (ngx_event_flags & NGX_USE_IOCP_EVENT) {\n p->single_buf = 1;\n }\n p->free_bufs = 1;\n u->buffer.last = u->buffer.pos;\n if (u->conf->cyclic_temp_file) {\n p->cyclic_temp_file = 1;\n c->sendfile = 0;\n } else {\n p->cyclic_temp_file = 0;\n }\n p->read_timeout = u->conf->read_timeout;\n p->send_timeout = clcf->send_timeout;\n p->send_lowat = clcf->send_lowat;\n p->length = -1;\n if (u->input_filter_init\n && u->input_filter_init(p->input_ctx) != NGX_OK)\n {\n ngx_http_upstream_finalize_request(r, u, NGX_ERROR);\n return;\n }\n u->read_event_handler = ngx_http_upstream_process_upstream;\n r->write_event_handler = ngx_http_upstream_process_downstream;\n ngx_http_upstream_process_upstream(r, u);\n}', 'static void\nngx_http_upstream_finalize_request(ngx_http_request_t *r,\n ngx_http_upstream_t *u, ngx_int_t rc)\n{\n ngx_uint_t flush;\n ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,\n "finalize http upstream request: %i", rc);\n if (u->cleanup == NULL) {\n ngx_http_finalize_request(r, NGX_DONE);\n return;\n }\n *u->cleanup = NULL;\n u->cleanup = NULL;\n if (u->resolved && u->resolved->ctx) {\n ngx_resolve_name_done(u->resolved->ctx);\n u->resolved->ctx = NULL;\n }\n if (u->state && u->state->response_time) {\n u->state->response_time = ngx_current_msec - u->state->response_time;\n if (u->pipe && u->pipe->read_length) {\n u->state->bytes_received += u->pipe->read_length\n - u->pipe->preread_size;\n u->state->response_length = u->pipe->read_length;\n }\n }\n u->finalize_request(r, rc);\n if (u->peer.free && u->peer.sockaddr) {\n u->peer.free(&u->peer, u->peer.data, 0);\n u->peer.sockaddr = NULL;\n }\n if (u->peer.connection) {\n#if (NGX_HTTP_SSL)\n if (u->peer.connection->ssl) {\n u->peer.connection->ssl->no_wait_shutdown = 1;\n (void) ngx_ssl_shutdown(u->peer.connection);\n }\n#endif\n ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,\n "close http upstream connection: %d",\n u->peer.connection->fd);\n if (u->peer.connection->pool) {\n ngx_destroy_pool(u->peer.connection->pool);\n }\n ngx_close_connection(u->peer.connection);\n }\n u->peer.connection = NULL;\n if (u->pipe && u->pipe->temp_file) {\n ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,\n "http upstream temp fd: %d",\n u->pipe->temp_file->file.fd);\n }\n if (u->store && u->pipe && u->pipe->temp_file\n && u->pipe->temp_file->file.fd != NGX_INVALID_FILE)\n {\n if (ngx_delete_file(u->pipe->temp_file->file.name.data)\n == NGX_FILE_ERROR)\n {\n ngx_log_error(NGX_LOG_CRIT, r->connection->log, ngx_errno,\n ngx_delete_file_n " \\"%s\\" failed",\n u->pipe->temp_file->file.name.data);\n }\n }\n#if (NGX_HTTP_CACHE)\n if (r->cache) {\n if (u->cacheable) {\n if (rc == NGX_HTTP_BAD_GATEWAY || rc == NGX_HTTP_GATEWAY_TIME_OUT) {\n time_t valid;\n valid = ngx_http_file_cache_valid(u->conf->cache_valid, rc);\n if (valid) {\n r->cache->valid_sec = ngx_time() + valid;\n r->cache->error = rc;\n }\n }\n }\n ngx_http_file_cache_free(r->cache, u->pipe->temp_file);\n }\n#endif\n r->read_event_handler = ngx_http_block_reading;\n if (rc == NGX_DECLINED) {\n return;\n }\n r->connection->log->action = "sending to client";\n if (!u->header_sent\n || rc == NGX_HTTP_REQUEST_TIME_OUT\n || rc == NGX_HTTP_CLIENT_CLOSED_REQUEST)\n {\n ngx_http_finalize_request(r, rc);\n return;\n }\n flush = 0;\n if (rc >= NGX_HTTP_SPECIAL_RESPONSE) {\n rc = NGX_ERROR;\n flush = 1;\n }\n if (r->header_only\n || (u->pipe && u->pipe->downstream_error))\n {\n ngx_http_finalize_request(r, rc);\n return;\n }\n if (rc == 0) {\n if (ngx_http_upstream_process_trailers(r, u) != NGX_OK) {\n ngx_http_finalize_request(r, NGX_ERROR);\n return;\n }\n rc = ngx_http_send_special(r, NGX_HTTP_LAST);\n } else if (flush) {\n r->keepalive = 0;\n rc = ngx_http_send_special(r, NGX_HTTP_FLUSH);\n }\n ngx_http_finalize_request(r, rc);\n}', 'void\nngx_http_finalize_request(ngx_http_request_t *r, ngx_int_t rc)\n{\n ngx_connection_t *c;\n ngx_http_request_t *pr;\n ngx_http_core_loc_conf_t *clcf;\n c = r->connection;\n ngx_log_debug5(NGX_LOG_DEBUG_HTTP, c->log, 0,\n "http finalize request: %i, \\"%V?%V\\" a:%d, c:%d",\n rc, &r->uri, &r->args, r == c->data, r->main->count);\n if (rc == NGX_DONE) {\n ngx_http_finalize_connection(r);\n return;\n }\n if (rc == NGX_OK && r->filter_finalize) {\n c->error = 1;\n }\n if (rc == NGX_DECLINED) {\n r->content_handler = NULL;\n r->write_event_handler = ngx_http_core_run_phases;\n ngx_http_core_run_phases(r);\n return;\n }\n if (r != r->main && r->post_subrequest) {\n rc = r->post_subrequest->handler(r, r->post_subrequest->data, rc);\n }\n if (rc == NGX_ERROR\n || rc == NGX_HTTP_REQUEST_TIME_OUT\n || rc == NGX_HTTP_CLIENT_CLOSED_REQUEST\n || c->error)\n {\n if (ngx_http_post_action(r) == NGX_OK) {\n return;\n }\n ngx_http_terminate_request(r, rc);\n return;\n }\n if (rc >= NGX_HTTP_SPECIAL_RESPONSE\n || rc == NGX_HTTP_CREATED\n || rc == NGX_HTTP_NO_CONTENT)\n {\n if (rc == NGX_HTTP_CLOSE) {\n ngx_http_terminate_request(r, rc);\n return;\n }\n if (r == r->main) {\n if (c->read->timer_set) {\n ngx_del_timer(c->read);\n }\n if (c->write->timer_set) {\n ngx_del_timer(c->write);\n }\n }\n c->read->handler = ngx_http_request_handler;\n c->write->handler = ngx_http_request_handler;\n ngx_http_finalize_request(r, ngx_http_special_response_handler(r, rc));\n return;\n }\n if (r != r->main) {\n clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);\n if (r->background) {\n if (!r->logged) {\n if (clcf->log_subrequest) {\n ngx_http_log_request(r);\n }\n r->logged = 1;\n } else {\n ngx_log_error(NGX_LOG_ALERT, c->log, 0,\n "subrequest: \\"%V?%V\\" logged again",\n &r->uri, &r->args);\n }\n r->done = 1;\n ngx_http_finalize_connection(r);\n return;\n }\n if (r->buffered || r->postponed) {\n if (ngx_http_set_write_handler(r) != NGX_OK) {\n ngx_http_terminate_request(r, 0);\n }\n return;\n }\n pr = r->parent;\n if (r == c->data) {\n r->main->count--;\n if (!r->logged) {\n if (clcf->log_subrequest) {\n ngx_http_log_request(r);\n }\n r->logged = 1;\n } else {\n ngx_log_error(NGX_LOG_ALERT, c->log, 0,\n "subrequest: \\"%V?%V\\" logged again",\n &r->uri, &r->args);\n }\n r->done = 1;\n if (pr->postponed && pr->postponed->request == r) {\n pr->postponed = pr->postponed->next;\n }\n c->data = pr;\n } else {\n ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0,\n "http finalize non-active request: \\"%V?%V\\"",\n &r->uri, &r->args);\n r->write_event_handler = ngx_http_request_finalizer;\n if (r->waited) {\n r->done = 1;\n }\n }\n if (ngx_http_post_request(pr, NULL) != NGX_OK) {\n r->main->count++;\n ngx_http_terminate_request(r, 0);\n return;\n }\n ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0,\n "http wake parent request: \\"%V?%V\\"",\n &pr->uri, &pr->args);\n return;\n }\n if (r->buffered || c->buffered || r->postponed) {\n if (ngx_http_set_write_handler(r) != NGX_OK) {\n ngx_http_terminate_request(r, 0);\n }\n return;\n }\n if (r != c->data) {\n ngx_log_error(NGX_LOG_ALERT, c->log, 0,\n "http finalize non-active request: \\"%V?%V\\"",\n &r->uri, &r->args);\n return;\n }\n r->done = 1;\n r->read_event_handler = ngx_http_block_reading;\n r->write_event_handler = ngx_http_request_empty_handler;\n if (!r->post_action) {\n r->request_complete = 1;\n }\n if (ngx_http_post_action(r) == NGX_OK) {\n return;\n }\n if (c->read->timer_set) {\n ngx_del_timer(c->read);\n }\n if (c->write->timer_set) {\n c->write->delayed = 0;\n ngx_del_timer(c->write);\n }\n if (c->read->eof) {\n ngx_http_close_request(r, 0);\n return;\n }\n ngx_http_finalize_connection(r);\n}', 'static ngx_int_t\nngx_http_post_action(ngx_http_request_t *r)\n{\n ngx_http_core_loc_conf_t *clcf;\n clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);\n if (clcf->post_action.data == NULL) {\n return NGX_DECLINED;\n }\n if (r->post_action && r->uri_changes == 0) {\n return NGX_DECLINED;\n }\n ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,\n "post action: \\"%V\\"", &clcf->post_action);\n r->main->count--;\n r->http_version = NGX_HTTP_VERSION_9;\n r->header_only = 1;\n r->post_action = 1;\n r->read_event_handler = ngx_http_block_reading;\n if (clcf->post_action.data[0] == \'/\') {\n ngx_http_internal_redirect(r, &clcf->post_action, NULL);\n } else {\n ngx_http_named_location(r, &clcf->post_action);\n }\n return NGX_OK;\n}'] |
23,191 | 0 | https://github.com/openssl/openssl/blob/9dd4ac8cf17f2afd636e85ae0111d1df4104a475/crypto/cms/cms_pwri.c/#L213 | 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;
}
tmp = OPENSSL_malloc(inlen);
if (tmp == NULL)
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_key(CMS_ContentInfo *cms,\n unsigned char *key, size_t keylen,\n const unsigned char *id, size_t idlen)\n{\n STACK_OF(CMS_RecipientInfo) *ris;\n CMS_RecipientInfo *ri;\n int i, r;\n ris = CMS_get0_RecipientInfos(cms);\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) != CMS_RECIPINFO_KEK)\n continue;\n if (!id || (CMS_RecipientInfo_kekri_id_cmp(ri, id, idlen) == 0)) {\n CMS_RecipientInfo_set0_key(ri, key, keylen);\n r = CMS_RecipientInfo_decrypt(cms, ri);\n CMS_RecipientInfo_set0_key(ri, NULL, 0);\n if (r > 0)\n return 1;\n if (id) {\n CMSerr(CMS_F_CMS_DECRYPT_SET1_KEY, CMS_R_DECRYPT_ERROR);\n return 0;\n }\n ERR_clear_error();\n }\n }\n CMSerr(CMS_F_CMS_DECRYPT_SET1_KEY, CMS_R_NO_MATCHING_RECIPIENT);\n return 0;\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_RECPIENTINFO_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 tmp = OPENSSL_malloc(inlen);\n if (tmp == NULL)\n return 0;\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}', '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}'] |
23,192 | 0 | https://github.com/openssl/openssl/blob/985de8634000df9b33b8ac4519fa10a99e43b314/crypto/x509/x509_att.c/#L206 | void *X509at_get0_data_by_OBJ(STACK_OF(X509_ATTRIBUTE) *x,
ASN1_OBJECT *obj, int lastpos, int type)
{
int i;
X509_ATTRIBUTE *at;
i = X509at_get_attr_by_OBJ(x, obj, lastpos);
if (i == -1)
return NULL;
if ((lastpos <= -2) && (X509at_get_attr_by_OBJ(x, obj, i) != -1))
return NULL;
at = X509at_get_attr(x, i);
if (lastpos <= -3 && (X509_ATTRIBUTE_count(at) != 1))
return NULL;
return X509_ATTRIBUTE_get0_data(at, 0, type, NULL);
} | ['void *X509at_get0_data_by_OBJ(STACK_OF(X509_ATTRIBUTE) *x,\n\t\t\t\tASN1_OBJECT *obj, int lastpos, int type)\n{\n\tint i;\n\tX509_ATTRIBUTE *at;\n\ti = X509at_get_attr_by_OBJ(x, obj, lastpos);\n\tif (i == -1)\n\t\treturn NULL;\n\tif ((lastpos <= -2) && (X509at_get_attr_by_OBJ(x, obj, i) != -1))\n\t\treturn NULL;\n\tat = X509at_get_attr(x, i);\n\tif (lastpos <= -3 && (X509_ATTRIBUTE_count(at) != 1))\n\t\treturn NULL;\n\treturn X509_ATTRIBUTE_get0_data(at, 0, type, NULL);\n}', 'X509_ATTRIBUTE *X509at_get_attr(const STACK_OF(X509_ATTRIBUTE) *x, int loc)\n{\n\tif (x == NULL || sk_X509_ATTRIBUTE_num(x) <= loc || loc < 0)\n\t\treturn NULL;\n\telse\n\t\treturn sk_X509_ATTRIBUTE_value(x,loc);\n}', 'int X509_ATTRIBUTE_count(X509_ATTRIBUTE *attr)\n{\n\tif(!attr->single) return sk_ASN1_TYPE_num(attr->value.set);\n\tif(attr->value.single) return 1;\n\treturn 0;\n}'] |
23,193 | 0 | https://github.com/openssl/openssl/blob/f7a3296d8c8746b9901e95674425f300a6dfd1d4/crypto/asn1/t_x509.c/#L389 | int ASN1_GENERALIZEDTIME_print(BIO *bp, const ASN1_GENERALIZEDTIME *tm)
{
char *v;
int gmt=0;
int i;
int y=0,M=0,d=0,h=0,m=0,s=0;
char *f = NULL;
int f_len = 0;
i=tm->length;
v=(char *)tm->data;
if (i < 12) goto err;
if (v[i-1] == 'Z') gmt=1;
for (i=0; i<12; i++)
if ((v[i] > '9') || (v[i] < '0')) goto err;
y= (v[0]-'0')*1000+(v[1]-'0')*100 + (v[2]-'0')*10+(v[3]-'0');
M= (v[4]-'0')*10+(v[5]-'0');
if ((M > 12) || (M < 1)) goto err;
d= (v[6]-'0')*10+(v[7]-'0');
h= (v[8]-'0')*10+(v[9]-'0');
m= (v[10]-'0')*10+(v[11]-'0');
if ( (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 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,subject=0,issuer=0,startdate=0,enddate=0;\n\tint next_serial=0;\n\tint subject_hash=0,issuer_hash=0,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\tconst char **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_sha1();\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#ifndef OPENSSL_NO_ENGINE\n\tchar *engine=NULL;\n#endif\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#ifndef OPENSSL_NO_ENGINE\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#endif\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,"-next_serial") == 0)\n\t\t\tnext_serial= ++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\t|| strcmp(*argv,"-subject_hash") == 0)\n\t\t\tsubject_hash= ++num;\n\t\telse if (strcmp(*argv,"-issuer_hash") == 0)\n\t\t\tissuer_hash= ++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#ifndef OPENSSL_NO_ENGINE\n e = setup_engine(bio_err, engine, 0);\n#endif\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 == NULL)\n\t\t\t{\n\t\t\tsno = ASN1_INTEGER_new();\n\t\t\tif (!sno || !rand_serial(NULL, sno))\n\t\t\t\tgoto end;\n\t\t\tif (!X509_set_serialNumber(x, sno))\n\t\t\t\tgoto end;\n\t\t\tASN1_INTEGER_free(sno);\n\t\t\tsno = NULL;\n\t\t\t}\n\t\telse if (!X509_set_serialNumber(x, sno))\n\t\t\tgoto 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 || next_serial)\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,\n\t\t\t\t\tX509_get_serialNumber(x));\n\t\t\t\tBIO_printf(STDout,"\\n");\n\t\t\t\t}\n\t\t\telse if (next_serial == i)\n\t\t\t\t{\n\t\t\t\tBIGNUM *bnser;\n\t\t\t\tASN1_INTEGER *ser;\n\t\t\t\tser = X509_get_serialNumber(x);\n\t\t\t\tbnser = ASN1_INTEGER_to_BN(ser, NULL);\n\t\t\t\tif (!bnser)\n\t\t\t\t\tgoto end;\n\t\t\t\tif (!BN_add_word(bnser, 1))\n\t\t\t\t\tgoto end;\n\t\t\t\tser = BN_to_ASN1_INTEGER(bnser, NULL);\n\t\t\t\tif (!ser)\n\t\t\t\t\tgoto end;\n\t\t\t\tBN_free(bnser);\n\t\t\t\ti2a_ASN1_INTEGER(out, ser);\n\t\t\t\tASN1_INTEGER_free(ser);\n\t\t\t\tBIO_puts(out, "\\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 (subject_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 (issuer_hash == i)\n\t\t\t\t{\n\t\t\t\tBIO_printf(STDout,"%08lx\\n",X509_issuer_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 tcheck=time(NULL) + checkoffset;\n\t\tif (X509_cmp_time(X509_get_notAfter(x), &tcheck) < 0)\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\tNETSCAPE_X509 nx;\n\t\tASN1_OCTET_STRING hdr;\n\t\thdr.data=(unsigned char *)NETSCAPE_CERT_HDR;\n\t\thdr.length=strlen(NETSCAPE_CERT_HDR);\n\t\tnx.header= &hdr;\n\t\tnx.cert=x;\n\t\ti=ASN1_item_i2d_bio(ASN1_ITEM_rptr(NETSCAPE_X509),out,&nx);\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\tOPENSSL_EXIT(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\tif (x->attributes)\n\t\tsk_X509_ATTRIBUTE_pop_free(x->attributes, X509_ATTRIBUTE_free);\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\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\t\t\t{\n\t\t\tEVP_PKEY_print_public(bp, pkey, 16, NULL);\n\t\t\tEVP_PKEY_free(pkey);\n\t\t\t}\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 (m != NULL) OPENSSL_free(m);\n\treturn(ret);\n\t}', 'int ASN1_TIME_print(BIO *bp, const 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, const 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}'] |
23,194 | 0 | https://github.com/libav/libav/blob/e445647b4fdf481b13b2743b303d84de4f43bedd/libavfilter/vf_lut.c/#L204 | static int config_props(AVFilterLink *inlink)
{
AVFilterContext *ctx = inlink->dst;
LutContext *lut = ctx->priv;
const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
int min[4], max[4];
int val, comp, ret;
lut->hsub = desc->log2_chroma_w;
lut->vsub = desc->log2_chroma_h;
lut->var_values[VAR_W] = inlink->w;
lut->var_values[VAR_H] = inlink->h;
switch (inlink->format) {
case AV_PIX_FMT_YUV410P:
case AV_PIX_FMT_YUV411P:
case AV_PIX_FMT_YUV420P:
case AV_PIX_FMT_YUV422P:
case AV_PIX_FMT_YUV440P:
case AV_PIX_FMT_YUV444P:
case AV_PIX_FMT_YUVA420P:
min[Y] = min[U] = min[V] = 16;
max[Y] = 235;
max[U] = max[V] = 240;
min[A] = 0; max[A] = 255;
break;
default:
min[0] = min[1] = min[2] = min[3] = 0;
max[0] = max[1] = max[2] = max[3] = 255;
}
lut->is_yuv = lut->is_rgb = 0;
if (ff_fmt_is_in(inlink->format, yuv_pix_fmts)) lut->is_yuv = 1;
else if (ff_fmt_is_in(inlink->format, rgb_pix_fmts)) lut->is_rgb = 1;
if (lut->is_rgb) {
switch (inlink->format) {
case AV_PIX_FMT_ARGB: lut->rgba_map[A] = 0; lut->rgba_map[R] = 1; lut->rgba_map[G] = 2; lut->rgba_map[B] = 3; break;
case AV_PIX_FMT_ABGR: lut->rgba_map[A] = 0; lut->rgba_map[B] = 1; lut->rgba_map[G] = 2; lut->rgba_map[R] = 3; break;
case AV_PIX_FMT_RGBA:
case AV_PIX_FMT_RGB24: lut->rgba_map[R] = 0; lut->rgba_map[G] = 1; lut->rgba_map[B] = 2; lut->rgba_map[A] = 3; break;
case AV_PIX_FMT_BGRA:
case AV_PIX_FMT_BGR24: lut->rgba_map[B] = 0; lut->rgba_map[G] = 1; lut->rgba_map[R] = 2; lut->rgba_map[A] = 3; break;
}
lut->step = av_get_bits_per_pixel(desc) >> 3;
}
for (comp = 0; comp < desc->nb_components; comp++) {
double res;
ret = av_expr_parse(&lut->comp_expr[comp], lut->comp_expr_str[comp],
var_names, funcs1_names, funcs1, NULL, NULL, 0, ctx);
if (ret < 0) {
av_log(ctx, AV_LOG_ERROR,
"Error when parsing the expression '%s' for the component %d.\n",
lut->comp_expr_str[comp], comp);
return AVERROR(EINVAL);
}
lut->var_values[VAR_MAXVAL] = max[comp];
lut->var_values[VAR_MINVAL] = min[comp];
for (val = 0; val < 256; val++) {
lut->var_values[VAR_VAL] = val;
lut->var_values[VAR_CLIPVAL] = av_clip(val, min[comp], max[comp]);
lut->var_values[VAR_NEGVAL] =
av_clip(min[comp] + max[comp] - lut->var_values[VAR_VAL],
min[comp], max[comp]);
res = av_expr_eval(lut->comp_expr[comp], lut->var_values, lut);
if (isnan(res)) {
av_log(ctx, AV_LOG_ERROR,
"Error when evaluating the expression '%s' for the value %d for the component #%d.\n",
lut->comp_expr_str[comp], val, comp);
return AVERROR(EINVAL);
}
lut->lut[comp][val] = av_clip((int)res, min[comp], max[comp]);
av_log(ctx, AV_LOG_DEBUG, "val[%d][%d] = %d\n", comp, val, lut->lut[comp][val]);
}
}
return 0;
} | ['static int config_props(AVFilterLink *inlink)\n{\n AVFilterContext *ctx = inlink->dst;\n LutContext *lut = ctx->priv;\n const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);\n int min[4], max[4];\n int val, comp, ret;\n lut->hsub = desc->log2_chroma_w;\n lut->vsub = desc->log2_chroma_h;\n lut->var_values[VAR_W] = inlink->w;\n lut->var_values[VAR_H] = inlink->h;\n switch (inlink->format) {\n case AV_PIX_FMT_YUV410P:\n case AV_PIX_FMT_YUV411P:\n case AV_PIX_FMT_YUV420P:\n case AV_PIX_FMT_YUV422P:\n case AV_PIX_FMT_YUV440P:\n case AV_PIX_FMT_YUV444P:\n case AV_PIX_FMT_YUVA420P:\n min[Y] = min[U] = min[V] = 16;\n max[Y] = 235;\n max[U] = max[V] = 240;\n min[A] = 0; max[A] = 255;\n break;\n default:\n min[0] = min[1] = min[2] = min[3] = 0;\n max[0] = max[1] = max[2] = max[3] = 255;\n }\n lut->is_yuv = lut->is_rgb = 0;\n if (ff_fmt_is_in(inlink->format, yuv_pix_fmts)) lut->is_yuv = 1;\n else if (ff_fmt_is_in(inlink->format, rgb_pix_fmts)) lut->is_rgb = 1;\n if (lut->is_rgb) {\n switch (inlink->format) {\n case AV_PIX_FMT_ARGB: lut->rgba_map[A] = 0; lut->rgba_map[R] = 1; lut->rgba_map[G] = 2; lut->rgba_map[B] = 3; break;\n case AV_PIX_FMT_ABGR: lut->rgba_map[A] = 0; lut->rgba_map[B] = 1; lut->rgba_map[G] = 2; lut->rgba_map[R] = 3; break;\n case AV_PIX_FMT_RGBA:\n case AV_PIX_FMT_RGB24: lut->rgba_map[R] = 0; lut->rgba_map[G] = 1; lut->rgba_map[B] = 2; lut->rgba_map[A] = 3; break;\n case AV_PIX_FMT_BGRA:\n case AV_PIX_FMT_BGR24: lut->rgba_map[B] = 0; lut->rgba_map[G] = 1; lut->rgba_map[R] = 2; lut->rgba_map[A] = 3; break;\n }\n lut->step = av_get_bits_per_pixel(desc) >> 3;\n }\n for (comp = 0; comp < desc->nb_components; comp++) {\n double res;\n ret = av_expr_parse(&lut->comp_expr[comp], lut->comp_expr_str[comp],\n var_names, funcs1_names, funcs1, NULL, NULL, 0, ctx);\n if (ret < 0) {\n av_log(ctx, AV_LOG_ERROR,\n "Error when parsing the expression \'%s\' for the component %d.\\n",\n lut->comp_expr_str[comp], comp);\n return AVERROR(EINVAL);\n }\n lut->var_values[VAR_MAXVAL] = max[comp];\n lut->var_values[VAR_MINVAL] = min[comp];\n for (val = 0; val < 256; val++) {\n lut->var_values[VAR_VAL] = val;\n lut->var_values[VAR_CLIPVAL] = av_clip(val, min[comp], max[comp]);\n lut->var_values[VAR_NEGVAL] =\n av_clip(min[comp] + max[comp] - lut->var_values[VAR_VAL],\n min[comp], max[comp]);\n res = av_expr_eval(lut->comp_expr[comp], lut->var_values, lut);\n if (isnan(res)) {\n av_log(ctx, AV_LOG_ERROR,\n "Error when evaluating the expression \'%s\' for the value %d for the component #%d.\\n",\n lut->comp_expr_str[comp], val, comp);\n return AVERROR(EINVAL);\n }\n lut->lut[comp][val] = av_clip((int)res, min[comp], max[comp]);\n av_log(ctx, AV_LOG_DEBUG, "val[%d][%d] = %d\\n", comp, val, lut->lut[comp][val]);\n }\n }\n return 0;\n}', 'const AVPixFmtDescriptor *av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)\n{\n if (pix_fmt < 0 || pix_fmt >= AV_PIX_FMT_NB)\n return NULL;\n return &av_pix_fmt_descriptors[pix_fmt];\n}'] |
23,195 | 0 | https://github.com/openssl/openssl/blob/f006217bb628d05a2d5b866ff252bd94e3477e1f/test/ecdsatest.c/#L170 | int fbytes(unsigned char *buf, int num)
{
int ret;
BIGNUM *tmp = NULL;
if (use_fake == 0)
return old_rand->bytes(buf, num);
use_fake = 0;
if (fbytes_counter >= 8)
return 0;
tmp = BN_new();
if (!tmp)
return 0;
if (!BN_dec2bn(&tmp, numbers[fbytes_counter])) {
BN_free(tmp);
return 0;
}
fbytes_counter++;
if (num != BN_num_bytes(tmp) || !BN_bn2bin(tmp, buf))
ret = 0;
else
ret = 1;
BN_free(tmp);
return ret;
} | ['int fbytes(unsigned char *buf, int num)\n{\n int ret;\n BIGNUM *tmp = NULL;\n if (use_fake == 0)\n return old_rand->bytes(buf, num);\n use_fake = 0;\n if (fbytes_counter >= 8)\n return 0;\n tmp = BN_new();\n if (!tmp)\n return 0;\n if (!BN_dec2bn(&tmp, numbers[fbytes_counter])) {\n BN_free(tmp);\n return 0;\n }\n fbytes_counter++;\n if (num != BN_num_bytes(tmp) || !BN_bn2bin(tmp, buf))\n ret = 0;\n else\n ret = 1;\n BN_free(tmp);\n return ret;\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 *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}'] |
23,196 | 0 | https://github.com/libav/libav/blob/23f4c5acc438366d84cacf49e33b0bcd72f04937/libavformat/utils.c/#L622 | static void probe_codec(AVFormatContext *s, AVStream *st, const AVPacket *pkt)
{
if(st->codec->codec_id == AV_CODEC_ID_PROBE){
AVProbeData *pd = &st->probe_data;
av_log(s, AV_LOG_DEBUG, "probing stream %d\n", st->index);
--st->probe_packets;
if (pkt) {
pd->buf = av_realloc(pd->buf, pd->buf_size+pkt->size+AVPROBE_PADDING_SIZE);
memcpy(pd->buf+pd->buf_size, pkt->data, pkt->size);
pd->buf_size += pkt->size;
memset(pd->buf+pd->buf_size, 0, AVPROBE_PADDING_SIZE);
} else {
st->probe_packets = 0;
if (!pd->buf_size) {
av_log(s, AV_LOG_ERROR, "nothing to probe for stream %d\n",
st->index);
return;
}
}
if (!st->probe_packets ||
av_log2(pd->buf_size) != av_log2(pd->buf_size - pkt->size)) {
set_codec_from_probe_data(s, st, pd, st->probe_packets > 0 ? AVPROBE_SCORE_MAX/4 : 0);
if(st->codec->codec_id != AV_CODEC_ID_PROBE){
pd->buf_size=0;
av_freep(&pd->buf);
av_log(s, AV_LOG_DEBUG, "probed stream %d\n", st->index);
}
}
}
} | ['static void probe_codec(AVFormatContext *s, AVStream *st, const AVPacket *pkt)\n{\n if(st->codec->codec_id == AV_CODEC_ID_PROBE){\n AVProbeData *pd = &st->probe_data;\n av_log(s, AV_LOG_DEBUG, "probing stream %d\\n", st->index);\n --st->probe_packets;\n if (pkt) {\n pd->buf = av_realloc(pd->buf, pd->buf_size+pkt->size+AVPROBE_PADDING_SIZE);\n memcpy(pd->buf+pd->buf_size, pkt->data, pkt->size);\n pd->buf_size += pkt->size;\n memset(pd->buf+pd->buf_size, 0, AVPROBE_PADDING_SIZE);\n } else {\n st->probe_packets = 0;\n if (!pd->buf_size) {\n av_log(s, AV_LOG_ERROR, "nothing to probe for stream %d\\n",\n st->index);\n return;\n }\n }\n if (!st->probe_packets ||\n av_log2(pd->buf_size) != av_log2(pd->buf_size - pkt->size)) {\n set_codec_from_probe_data(s, st, pd, st->probe_packets > 0 ? AVPROBE_SCORE_MAX/4 : 0);\n if(st->codec->codec_id != AV_CODEC_ID_PROBE){\n pd->buf_size=0;\n av_freep(&pd->buf);\n av_log(s, AV_LOG_DEBUG, "probed stream %d\\n", st->index);\n }\n }\n }\n}', 'void *av_realloc(void *ptr, size_t 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)\n return av_malloc(size);\n diff = ((char *)ptr)[-1];\n return (char *)realloc((char *)ptr - diff, size + diff) + diff;\n#elif HAVE_ALIGNED_MALLOC\n return _aligned_realloc(ptr, size, 32);\n#else\n return realloc(ptr, size);\n#endif\n}'] |
23,197 | 0 | https://github.com/libav/libav/blob/bb4afa13dd3264832bc379bbfefe1db8cf4f0e40/libavcodec/sonic.c/#L809 | static av_cold int sonic_decode_init(AVCodecContext *avctx)
{
SonicContext *s = avctx->priv_data;
GetBitContext gb;
int i, version;
s->channels = avctx->channels;
s->samplerate = avctx->sample_rate;
if (!avctx->extradata)
{
av_log(avctx, AV_LOG_ERROR, "No mandatory headers present\n");
return -1;
}
init_get_bits(&gb, avctx->extradata, avctx->extradata_size);
version = get_bits(&gb, 2);
if (version > 1)
{
av_log(avctx, AV_LOG_ERROR, "Unsupported Sonic version, please report\n");
return -1;
}
if (version == 1)
{
s->channels = get_bits(&gb, 2);
s->samplerate = samplerate_table[get_bits(&gb, 4)];
av_log(avctx, AV_LOG_INFO, "Sonicv2 chans: %d samprate: %d\n",
s->channels, s->samplerate);
}
if (s->channels > MAX_CHANNELS)
{
av_log(avctx, AV_LOG_ERROR, "Only mono and stereo streams are supported by now\n");
return -1;
}
s->lossless = get_bits1(&gb);
if (!s->lossless)
skip_bits(&gb, 3);
s->decorrelation = get_bits(&gb, 2);
s->downsampling = get_bits(&gb, 2);
s->num_taps = (get_bits(&gb, 5)+1)<<5;
if (get_bits1(&gb))
av_log(avctx, AV_LOG_INFO, "Custom quant table\n");
s->block_align = (int)(2048.0*(s->samplerate/44100))/s->downsampling;
s->frame_size = s->channels*s->block_align*s->downsampling;
av_log(avctx, AV_LOG_INFO, "Sonic: ver: %d ls: %d dr: %d taps: %d block: %d frame: %d downsamp: %d\n",
version, s->lossless, s->decorrelation, s->num_taps, s->block_align, s->frame_size, s->downsampling);
s->tap_quant = av_mallocz(4* s->num_taps);
for (i = 0; i < s->num_taps; i++)
s->tap_quant[i] = (int)(sqrt(i+1));
s->predictor_k = av_mallocz(4* s->num_taps);
for (i = 0; i < s->channels; i++)
{
s->predictor_state[i] = av_mallocz(4* s->num_taps);
if (!s->predictor_state[i])
return -1;
}
for (i = 0; i < s->channels; i++)
{
s->coded_samples[i] = av_mallocz(4* s->block_align);
if (!s->coded_samples[i])
return -1;
}
s->int_samples = av_mallocz(4* s->frame_size);
avctx->sample_fmt = AV_SAMPLE_FMT_S16;
return 0;
} | ['static av_cold int sonic_decode_init(AVCodecContext *avctx)\n{\n SonicContext *s = avctx->priv_data;\n GetBitContext gb;\n int i, version;\n s->channels = avctx->channels;\n s->samplerate = avctx->sample_rate;\n if (!avctx->extradata)\n {\n av_log(avctx, AV_LOG_ERROR, "No mandatory headers present\\n");\n return -1;\n }\n init_get_bits(&gb, avctx->extradata, avctx->extradata_size);\n version = get_bits(&gb, 2);\n if (version > 1)\n {\n av_log(avctx, AV_LOG_ERROR, "Unsupported Sonic version, please report\\n");\n return -1;\n }\n if (version == 1)\n {\n s->channels = get_bits(&gb, 2);\n s->samplerate = samplerate_table[get_bits(&gb, 4)];\n av_log(avctx, AV_LOG_INFO, "Sonicv2 chans: %d samprate: %d\\n",\n s->channels, s->samplerate);\n }\n if (s->channels > MAX_CHANNELS)\n {\n av_log(avctx, AV_LOG_ERROR, "Only mono and stereo streams are supported by now\\n");\n return -1;\n }\n s->lossless = get_bits1(&gb);\n if (!s->lossless)\n skip_bits(&gb, 3);\n s->decorrelation = get_bits(&gb, 2);\n s->downsampling = get_bits(&gb, 2);\n s->num_taps = (get_bits(&gb, 5)+1)<<5;\n if (get_bits1(&gb))\n av_log(avctx, AV_LOG_INFO, "Custom quant table\\n");\n s->block_align = (int)(2048.0*(s->samplerate/44100))/s->downsampling;\n s->frame_size = s->channels*s->block_align*s->downsampling;\n av_log(avctx, AV_LOG_INFO, "Sonic: ver: %d ls: %d dr: %d taps: %d block: %d frame: %d downsamp: %d\\n",\n version, s->lossless, s->decorrelation, s->num_taps, s->block_align, s->frame_size, s->downsampling);\n s->tap_quant = av_mallocz(4* s->num_taps);\n for (i = 0; i < s->num_taps; i++)\n s->tap_quant[i] = (int)(sqrt(i+1));\n s->predictor_k = av_mallocz(4* s->num_taps);\n for (i = 0; i < s->channels; i++)\n {\n s->predictor_state[i] = av_mallocz(4* s->num_taps);\n if (!s->predictor_state[i])\n return -1;\n }\n for (i = 0; i < s->channels; i++)\n {\n s->coded_samples[i] = av_mallocz(4* s->block_align);\n if (!s->coded_samples[i])\n return -1;\n }\n s->int_samples = av_mallocz(4* s->frame_size);\n avctx->sample_fmt = AV_SAMPLE_FMT_S16;\n return 0;\n}', 'static inline void init_get_bits(GetBitContext *s,\n const uint8_t *buffer, int bit_size)\n{\n int buffer_size= (bit_size+7)>>3;\n if(buffer_size < 0 || bit_size < 0) {\n buffer_size = bit_size = 0;\n buffer = NULL;\n }\n s->buffer= buffer;\n s->size_in_bits= bit_size;\n s->buffer_end= buffer + buffer_size;\n#ifdef ALT_BITSTREAM_READER\n s->index=0;\n#elif defined LIBMPEG2_BITSTREAM_READER\n s->buffer_ptr = (uint8_t*)((intptr_t)buffer&(~1));\n s->bit_count = 16 + 8*((intptr_t)buffer&1);\n skip_bits_long(s, 0);\n#elif defined A32_BITSTREAM_READER\n s->buffer_ptr = (uint32_t*)((intptr_t)buffer&(~3));\n s->bit_count = 32 + 8*((intptr_t)buffer&3);\n skip_bits_long(s, 0);\n#endif\n}', 'static inline unsigned int get_bits(GetBitContext *s, int n){\n register int tmp;\n OPEN_READER(re, s)\n UPDATE_CACHE(re, s)\n tmp= SHOW_UBITS(re, s, n);\n LAST_SKIP_BITS(re, s, n)\n CLOSE_READER(re, s)\n return tmp;\n}', 'static av_always_inline av_const uint32_t av_bswap32(uint32_t x)\n{\n x= ((x<<8)&0xFF00FF00) | ((x>>8)&0x00FF00FF);\n x= (x>>16) | (x<<16);\n return x;\n}', 'static inline unsigned int get_bits1(GetBitContext *s){\n#ifdef ALT_BITSTREAM_READER\n unsigned int index= s->index;\n uint8_t result= s->buffer[ index>>3 ];\n#ifdef ALT_BITSTREAM_READER_LE\n result>>= (index&0x07);\n result&= 1;\n#else\n result<<= (index&0x07);\n result>>= 8 - 1;\n#endif\n index++;\n s->index= index;\n return result;\n#else\n return get_bits(s, 1);\n#endif\n}', 'void *av_mallocz(FF_INTERNAL_MEM_TYPE size)\n{\n void *ptr = av_malloc(size);\n if (ptr)\n memset(ptr, 0, size);\n return ptr;\n}', 'void *av_malloc(FF_INTERNAL_MEM_TYPE size)\n{\n void *ptr = NULL;\n#if CONFIG_MEMALIGN_HACK\n long diff;\n#endif\n if(size > (INT_MAX-16) )\n return NULL;\n#if CONFIG_MEMALIGN_HACK\n ptr = malloc(size+16);\n if(!ptr)\n return ptr;\n diff= ((-(long)ptr - 1)&15) + 1;\n ptr = (char*)ptr + diff;\n ((char*)ptr)[-1]= diff;\n#elif HAVE_POSIX_MEMALIGN\n if (posix_memalign(&ptr,16,size))\n ptr = NULL;\n#elif HAVE_MEMALIGN\n ptr = memalign(16,size);\n#else\n ptr = malloc(size);\n#endif\n return ptr;\n}'] |
23,198 | 0 | https://github.com/openssl/openssl/blob/bb56561adbb6d2728b05e2df08c0575c38a46249/crypto/dh/dh_pmeth.c/#L367 | static int pkey_dh_paramgen(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey)
{
DH *dh = NULL;
DH_PKEY_CTX *dctx = ctx->data;
BN_GENCB *pcb;
int ret;
if (dctx->rfc5114_param) {
switch (dctx->rfc5114_param) {
case 1:
dh = DH_get_1024_160();
break;
case 2:
dh = DH_get_2048_224();
break;
case 3:
dh = DH_get_2048_256();
break;
default:
return -2;
}
EVP_PKEY_assign(pkey, EVP_PKEY_DHX, dh);
return 1;
}
if (ctx->pkey_gencb) {
pcb = BN_GENCB_new();
if (pcb == NULL)
return 0;
evp_pkey_set_cb_translate(pcb, ctx);
} else
pcb = NULL;
#ifndef OPENSSL_NO_DSA
if (dctx->use_dsa) {
DSA *dsa_dh;
dsa_dh = dsa_dh_generate(dctx, pcb);
BN_GENCB_free(pcb);
if (dsa_dh == NULL)
return 0;
dh = DSA_dup_DH(dsa_dh);
DSA_free(dsa_dh);
if (!dh)
return 0;
EVP_PKEY_assign(pkey, EVP_PKEY_DHX, dh);
return 1;
}
#endif
dh = DH_new();
if (dh == NULL) {
BN_GENCB_free(pcb);
return 0;
}
ret = DH_generate_parameters_ex(dh,
dctx->prime_len, dctx->generator, pcb);
BN_GENCB_free(pcb);
if (ret)
EVP_PKEY_assign_DH(pkey, dh);
else
DH_free(dh);
return ret;
} | ['static int pkey_dh_paramgen(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey)\n{\n DH *dh = NULL;\n DH_PKEY_CTX *dctx = ctx->data;\n BN_GENCB *pcb;\n int ret;\n if (dctx->rfc5114_param) {\n switch (dctx->rfc5114_param) {\n case 1:\n dh = DH_get_1024_160();\n break;\n case 2:\n dh = DH_get_2048_224();\n break;\n case 3:\n dh = DH_get_2048_256();\n break;\n default:\n return -2;\n }\n EVP_PKEY_assign(pkey, EVP_PKEY_DHX, dh);\n return 1;\n }\n if (ctx->pkey_gencb) {\n pcb = BN_GENCB_new();\n if (pcb == NULL)\n return 0;\n evp_pkey_set_cb_translate(pcb, ctx);\n } else\n pcb = NULL;\n#ifndef OPENSSL_NO_DSA\n if (dctx->use_dsa) {\n DSA *dsa_dh;\n dsa_dh = dsa_dh_generate(dctx, pcb);\n BN_GENCB_free(pcb);\n if (dsa_dh == NULL)\n return 0;\n dh = DSA_dup_DH(dsa_dh);\n DSA_free(dsa_dh);\n if (!dh)\n return 0;\n EVP_PKEY_assign(pkey, EVP_PKEY_DHX, dh);\n return 1;\n }\n#endif\n dh = DH_new();\n if (dh == NULL) {\n BN_GENCB_free(pcb);\n return 0;\n }\n ret = DH_generate_parameters_ex(dh,\n dctx->prime_len, dctx->generator, pcb);\n BN_GENCB_free(pcb);\n if (ret)\n EVP_PKEY_assign_DH(pkey, dh);\n else\n DH_free(dh);\n return ret;\n}', 'make_dh(2048_256)', '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_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 *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}', 'int EVP_PKEY_assign(EVP_PKEY *pkey, int type, void *key)\n{\n if (pkey == NULL || !EVP_PKEY_set_type(pkey, type))\n return 0;\n pkey->pkey.ptr = key;\n return (key != NULL);\n}', 'int EVP_PKEY_set_type(EVP_PKEY *pkey, int type)\n{\n return pkey_set_type(pkey, type, NULL, -1);\n}'] |
23,199 | 0 | https://github.com/openssl/openssl/blob/ed371b8cbac0d0349667558c061c1ae380cf75eb/crypto/bn/bn_ctx.c/#L276 | static unsigned int BN_STACK_pop(BN_STACK *st)
{
return st->indexes[--(st->depth)];
} | ['static int file_modsqrt(STANZA *s)\n{\n BIGNUM *a = NULL, *p = NULL, *mod_sqrt = NULL, *ret = NULL, *ret2 = NULL;\n int st = 0;\n if (!TEST_ptr(a = getBN(s, "A"))\n || !TEST_ptr(p = getBN(s, "P"))\n || !TEST_ptr(mod_sqrt = getBN(s, "ModSqrt"))\n || !TEST_ptr(ret = BN_new())\n || !TEST_ptr(ret2 = BN_new()))\n goto err;\n if (!TEST_true(BN_mod_sqrt(ret, a, p, ctx))\n || !TEST_true(BN_sub(ret2, p, ret)))\n goto err;\n if (BN_cmp(ret2, mod_sqrt) != 0\n && !equalBN("sqrt(A) (mod P)", mod_sqrt, ret))\n goto err;\n st = 1;\nerr:\n BN_free(a);\n BN_free(p);\n BN_free(mod_sqrt);\n BN_free(ret);\n BN_free(ret2);\n return st;\n}', 'BIGNUM *BN_mod_sqrt(BIGNUM *in, const BIGNUM *a, const BIGNUM *p, BN_CTX *ctx)\n{\n BIGNUM *ret = in;\n int err = 1;\n int r;\n BIGNUM *A, *b, *q, *t, *x, *y;\n int e, i, j;\n if (!BN_is_odd(p) || BN_abs_is_word(p, 1)) {\n if (BN_abs_is_word(p, 2)) {\n if (ret == NULL)\n ret = BN_new();\n if (ret == NULL)\n goto end;\n if (!BN_set_word(ret, BN_is_bit_set(a, 0))) {\n if (ret != in)\n BN_free(ret);\n return NULL;\n }\n bn_check_top(ret);\n return ret;\n }\n BNerr(BN_F_BN_MOD_SQRT, BN_R_P_IS_NOT_PRIME);\n return NULL;\n }\n if (BN_is_zero(a) || BN_is_one(a)) {\n if (ret == NULL)\n ret = BN_new();\n if (ret == NULL)\n goto end;\n if (!BN_set_word(ret, BN_is_one(a))) {\n if (ret != in)\n BN_free(ret);\n return NULL;\n }\n bn_check_top(ret);\n return ret;\n }\n BN_CTX_start(ctx);\n A = BN_CTX_get(ctx);\n b = BN_CTX_get(ctx);\n q = BN_CTX_get(ctx);\n t = BN_CTX_get(ctx);\n x = BN_CTX_get(ctx);\n y = BN_CTX_get(ctx);\n if (y == NULL)\n goto end;\n if (ret == NULL)\n ret = BN_new();\n if (ret == NULL)\n goto end;\n if (!BN_nnmod(A, a, p, ctx))\n goto end;\n e = 1;\n while (!BN_is_bit_set(p, e))\n e++;\n if (e == 1) {\n if (!BN_rshift(q, p, 2))\n goto end;\n q->neg = 0;\n if (!BN_add_word(q, 1))\n goto end;\n if (!BN_mod_exp(ret, A, q, p, ctx))\n goto end;\n err = 0;\n goto vrfy;\n }\n if (e == 2) {\n if (!BN_mod_lshift1_quick(t, A, p))\n goto end;\n if (!BN_rshift(q, p, 3))\n goto end;\n q->neg = 0;\n if (!BN_mod_exp(b, t, q, p, ctx))\n goto end;\n if (!BN_mod_sqr(y, b, p, ctx))\n goto end;\n if (!BN_mod_mul(t, t, y, p, ctx))\n goto end;\n if (!BN_sub_word(t, 1))\n goto end;\n if (!BN_mod_mul(x, A, b, p, ctx))\n goto end;\n if (!BN_mod_mul(x, x, t, p, ctx))\n goto end;\n if (!BN_copy(ret, x))\n goto end;\n err = 0;\n goto vrfy;\n }\n if (!BN_copy(q, p))\n goto end;\n q->neg = 0;\n i = 2;\n do {\n if (i < 22) {\n if (!BN_set_word(y, i))\n goto end;\n } else {\n if (!BN_priv_rand(y, BN_num_bits(p), 0, 0))\n goto end;\n if (BN_ucmp(y, p) >= 0) {\n if (!(p->neg ? BN_add : BN_sub) (y, y, p))\n goto end;\n }\n if (BN_is_zero(y))\n if (!BN_set_word(y, i))\n goto end;\n }\n r = BN_kronecker(y, q, ctx);\n if (r < -1)\n goto end;\n if (r == 0) {\n BNerr(BN_F_BN_MOD_SQRT, BN_R_P_IS_NOT_PRIME);\n goto end;\n }\n }\n while (r == 1 && ++i < 82);\n if (r != -1) {\n BNerr(BN_F_BN_MOD_SQRT, BN_R_TOO_MANY_ITERATIONS);\n goto end;\n }\n if (!BN_rshift(q, q, e))\n goto end;\n if (!BN_mod_exp(y, y, q, p, ctx))\n goto end;\n if (BN_is_one(y)) {\n BNerr(BN_F_BN_MOD_SQRT, BN_R_P_IS_NOT_PRIME);\n goto end;\n }\n if (!BN_rshift1(t, q))\n goto end;\n if (BN_is_zero(t)) {\n if (!BN_nnmod(t, A, p, ctx))\n goto end;\n if (BN_is_zero(t)) {\n BN_zero(ret);\n err = 0;\n goto end;\n } else if (!BN_one(x))\n goto end;\n } else {\n if (!BN_mod_exp(x, A, t, p, ctx))\n goto end;\n if (BN_is_zero(x)) {\n BN_zero(ret);\n err = 0;\n goto end;\n }\n }\n if (!BN_mod_sqr(b, x, p, ctx))\n goto end;\n if (!BN_mod_mul(b, b, A, p, ctx))\n goto end;\n if (!BN_mod_mul(x, x, A, p, ctx))\n goto end;\n while (1) {\n if (BN_is_one(b)) {\n if (!BN_copy(ret, x))\n goto end;\n err = 0;\n goto vrfy;\n }\n i = 1;\n if (!BN_mod_sqr(t, b, p, ctx))\n goto end;\n while (!BN_is_one(t)) {\n i++;\n if (i == e) {\n BNerr(BN_F_BN_MOD_SQRT, BN_R_NOT_A_SQUARE);\n goto end;\n }\n if (!BN_mod_mul(t, t, t, p, ctx))\n goto end;\n }\n if (!BN_copy(t, y))\n goto end;\n for (j = e - i - 1; j > 0; j--) {\n if (!BN_mod_sqr(t, t, p, ctx))\n goto end;\n }\n if (!BN_mod_mul(y, t, t, p, ctx))\n goto end;\n if (!BN_mod_mul(x, x, t, p, ctx))\n goto end;\n if (!BN_mod_mul(b, b, y, p, ctx))\n goto end;\n e = i;\n }\n vrfy:\n if (!err) {\n if (!BN_mod_sqr(x, ret, p, ctx))\n err = 1;\n if (!err && 0 != BN_cmp(x, A)) {\n BNerr(BN_F_BN_MOD_SQRT, BN_R_NOT_A_SQUARE);\n err = 1;\n }\n }\n end:\n if (err) {\n if (ret != in)\n BN_clear_free(ret);\n ret = NULL;\n }\n BN_CTX_end(ctx);\n bn_check_top(ret);\n return ret;\n}', 'void BN_CTX_start(BN_CTX *ctx)\n{\n CTXDBG_ENTRY("BN_CTX_start", ctx);\n if (ctx->err_stack || ctx->too_many)\n ctx->err_stack++;\n else if (!BN_STACK_push(&ctx->stack, ctx->used)) {\n BNerr(BN_F_BN_CTX_START, BN_R_TOO_MANY_TEMPORARY_VARIABLES);\n ctx->err_stack++;\n }\n CTXDBG_EXIT(ctx);\n}', 'int BN_nnmod(BIGNUM *r, const BIGNUM *m, const BIGNUM *d, BN_CTX *ctx)\n{\n if (!(BN_mod(r, m, d, ctx)))\n return 0;\n if (!r->neg)\n return 1;\n return (d->neg ? BN_sub : BN_add) (r, r, d);\n}', 'int BN_div(BIGNUM *dv, BIGNUM *rm, const BIGNUM *num, const BIGNUM *divisor,\n BN_CTX *ctx)\n{\n int 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 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}'] |
23,200 | 0 | https://github.com/libav/libav/blob/611b17d79b659d68ce4ac2ca9c6eaf509237aad0/libavutil/lfg.c/#L38 | void av_cold av_lfg_init(AVLFG *c, unsigned int seed){
uint8_t tmp[16]={0};
int i;
for(i=8; i<64; i+=4){
AV_WL32(tmp, seed); tmp[4]=i;
av_md5_sum(tmp, tmp, 16);
c->state[i ]= AV_RL32(tmp);
c->state[i+1]= AV_RL32(tmp+4);
c->state[i+2]= AV_RL32(tmp+8);
c->state[i+3]= AV_RL32(tmp+12);
}
c->index=0;
} | ['void av_cold av_lfg_init(AVLFG *c, unsigned int seed){\n uint8_t tmp[16]={0};\n int i;\n for(i=8; i<64; i+=4){\n AV_WL32(tmp, seed); tmp[4]=i;\n av_md5_sum(tmp, tmp, 16);\n c->state[i ]= AV_RL32(tmp);\n c->state[i+1]= AV_RL32(tmp+4);\n c->state[i+2]= AV_RL32(tmp+8);\n c->state[i+3]= AV_RL32(tmp+12);\n }\n c->index=0;\n}'] |
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