2 * Copyright (c) 2007 The FFmpeg Project
4 * This file is part of FFmpeg.
6 * FFmpeg is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * FFmpeg is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with FFmpeg; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
24 #include "libavcodec/internal.h"
25 #include "libavutil/avutil.h"
26 #include "libavutil/mem.h"
28 #include "libavutil/time.h"
34 #include "compat/os2threads.h"
36 #include "compat/w32pthreads.h"
41 #include <openssl/ssl.h>
42 static int openssl_init;
44 #include <openssl/crypto.h>
45 #include "libavutil/avutil.h"
46 pthread_mutex_t *openssl_mutexes;
47 static void openssl_lock(int mode, int type, const char *file, int line)
49 if (mode & CRYPTO_LOCK)
50 pthread_mutex_lock(&openssl_mutexes[type]);
52 pthread_mutex_unlock(&openssl_mutexes[type]);
54 #if !defined(WIN32) && OPENSSL_VERSION_NUMBER < 0x10000000
55 static unsigned long openssl_thread_id(void)
57 return (intptr_t) pthread_self();
63 #include <gnutls/gnutls.h>
64 #if HAVE_THREADS && GNUTLS_VERSION_NUMBER <= 0x020b00
67 GCRY_THREAD_OPTION_PTHREAD_IMPL;
71 void ff_tls_init(void)
73 avpriv_lock_avformat();
77 SSL_load_error_strings();
79 if (!CRYPTO_get_locking_callback()) {
81 openssl_mutexes = av_malloc(sizeof(pthread_mutex_t) * CRYPTO_num_locks());
82 for (i = 0; i < CRYPTO_num_locks(); i++)
83 pthread_mutex_init(&openssl_mutexes[i], NULL);
84 CRYPTO_set_locking_callback(openssl_lock);
85 #if !defined(WIN32) && OPENSSL_VERSION_NUMBER < 0x10000000
86 CRYPTO_set_id_callback(openssl_thread_id);
94 #if HAVE_THREADS && GNUTLS_VERSION_NUMBER < 0x020b00
95 if (gcry_control(GCRYCTL_ANY_INITIALIZATION_P) == 0)
96 gcry_control(GCRYCTL_SET_THREAD_CBS, &gcry_threads_pthread);
100 avpriv_unlock_avformat();
103 void ff_tls_deinit(void)
105 avpriv_lock_avformat();
110 if (CRYPTO_get_locking_callback() == openssl_lock) {
112 CRYPTO_set_locking_callback(NULL);
113 for (i = 0; i < CRYPTO_num_locks(); i++)
114 pthread_mutex_destroy(&openssl_mutexes[i]);
115 av_free(openssl_mutexes);
121 gnutls_global_deinit();
123 avpriv_unlock_avformat();
126 int ff_network_inited_globally;
128 int ff_network_init(void)
134 if (!ff_network_inited_globally)
135 av_log(NULL, AV_LOG_WARNING, "Using network protocols without global "
136 "network initialization. Please use "
137 "avformat_network_init(), this will "
138 "become mandatory later.\n");
140 if (WSAStartup(MAKEWORD(1,1), &wsaData))
146 int ff_network_wait_fd(int fd, int write)
148 int ev = write ? POLLOUT : POLLIN;
149 struct pollfd p = { .fd = fd, .events = ev, .revents = 0 };
151 ret = poll(&p, 1, 100);
152 return ret < 0 ? ff_neterrno() : p.revents & (ev | POLLERR | POLLHUP) ? 0 : AVERROR(EAGAIN);
155 int ff_network_wait_fd_timeout(int fd, int write, int64_t timeout, AVIOInterruptCB *int_cb)
158 int64_t wait_start = 0;
161 if (ff_check_interrupt(int_cb))
163 ret = ff_network_wait_fd(fd, write);
164 if (ret != AVERROR(EAGAIN))
168 wait_start = av_gettime();
169 else if (av_gettime() - wait_start > timeout)
170 return AVERROR(ETIMEDOUT);
175 void ff_network_close(void)
183 int ff_neterrno(void)
185 int err = WSAGetLastError();
188 return AVERROR(EAGAIN);
190 return AVERROR(EINTR);
191 case WSAEPROTONOSUPPORT:
192 return AVERROR(EPROTONOSUPPORT);
194 return AVERROR(ETIMEDOUT);
195 case WSAECONNREFUSED:
196 return AVERROR(ECONNREFUSED);
198 return AVERROR(EINPROGRESS);
204 int ff_is_multicast_address(struct sockaddr *addr)
206 if (addr->sa_family == AF_INET) {
207 return IN_MULTICAST(ntohl(((struct sockaddr_in *)addr)->sin_addr.s_addr));
209 #if HAVE_STRUCT_SOCKADDR_IN6
210 if (addr->sa_family == AF_INET6) {
211 return IN6_IS_ADDR_MULTICAST(&((struct sockaddr_in6 *)addr)->sin6_addr);
218 static int ff_poll_interrupt(struct pollfd *p, nfds_t nfds, int timeout,
221 int runs = timeout / POLLING_TIME;
225 if (ff_check_interrupt(cb))
227 ret = poll(p, nfds, POLLING_TIME);
230 } while (timeout <= 0 || runs-- > 0);
233 return AVERROR(ETIMEDOUT);
235 return AVERROR(errno);
239 int ff_socket(int af, int type, int proto)
244 fd = socket(af, type | SOCK_CLOEXEC, proto);
245 if (fd == -1 && errno == EINVAL)
248 fd = socket(af, type, proto);
251 fcntl(fd, F_SETFD, FD_CLOEXEC);
257 int ff_listen_bind(int fd, const struct sockaddr *addr,
258 socklen_t addrlen, int timeout, URLContext *h)
262 struct pollfd lp = { fd, POLLIN, 0 };
263 if (setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &reuse, sizeof(reuse))) {
264 av_log(NULL, AV_LOG_WARNING, "setsockopt(SO_REUSEADDR) failed\n");
266 ret = bind(fd, addr, addrlen);
268 return ff_neterrno();
272 return ff_neterrno();
274 ret = ff_poll_interrupt(&lp, 1, timeout, &h->interrupt_callback);
278 ret = accept(fd, NULL, NULL);
280 return ff_neterrno();
284 ff_socket_nonblock(ret, 1);
288 int ff_listen_connect(int fd, const struct sockaddr *addr,
289 socklen_t addrlen, int timeout, URLContext *h,
292 struct pollfd p = {fd, POLLOUT, 0};
296 ff_socket_nonblock(fd, 1);
298 while ((ret = connect(fd, addr, addrlen))) {
302 if (ff_check_interrupt(&h->interrupt_callback))
305 case AVERROR(EINPROGRESS):
306 case AVERROR(EAGAIN):
307 ret = ff_poll_interrupt(&p, 1, timeout, &h->interrupt_callback);
310 optlen = sizeof(ret);
311 if (getsockopt (fd, SOL_SOCKET, SO_ERROR, &ret, &optlen))
312 ret = AVUNERROR(ff_neterrno());
316 av_strerror(ret, errbuf, sizeof(errbuf));
318 av_log(h, AV_LOG_WARNING,
319 "Connection to %s failed (%s), trying next address\n",
320 h->filename, errbuf);
322 av_log(h, AV_LOG_ERROR, "Connection to %s failed: %s\n",
323 h->filename, errbuf);
332 static int match_host_pattern(const char *pattern, const char *hostname)
335 if (!strcmp(pattern, "*"))
337 // Skip a possible *. at the start of the pattern
338 if (pattern[0] == '*')
340 if (pattern[0] == '.')
342 len_p = strlen(pattern);
343 len_h = strlen(hostname);
346 // Simply check if the end of hostname is equal to 'pattern'
347 if (!strcmp(pattern, &hostname[len_h - len_p])) {
349 return 1; // Exact match
350 if (hostname[len_h - len_p - 1] == '.')
351 return 1; // The matched substring is a domain and not just a substring of a domain
356 int ff_http_match_no_proxy(const char *no_proxy, const char *hostname)
364 buf = av_strdup(no_proxy);
369 char *sep, *next = NULL;
370 start += strspn(start, " ,");
371 sep = start + strcspn(start, " ,");
376 if (match_host_pattern(start, hostname)) {