2 * Copyright (c) 2007 The Libav Project
4 * This file is part of Libav.
6 * Libav 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 * Libav 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 Libav; 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/mem.h"
31 #include "compat/w32pthreads.h"
36 #include <openssl/ssl.h>
37 static int openssl_init;
39 #include <openssl/crypto.h>
40 #include "libavutil/avutil.h"
41 pthread_mutex_t *openssl_mutexes;
42 static void openssl_lock(int mode, int type, const char *file, int line)
44 if (mode & CRYPTO_LOCK)
45 pthread_mutex_lock(&openssl_mutexes[type]);
47 pthread_mutex_unlock(&openssl_mutexes[type]);
49 #if !defined(WIN32) && OPENSSL_VERSION_NUMBER < 0x10000000
50 static unsigned long openssl_thread_id(void)
52 return (intptr_t) pthread_self();
58 #include <gnutls/gnutls.h>
59 #if HAVE_THREADS && GNUTLS_VERSION_NUMBER <= 0x020b00
62 GCRY_THREAD_OPTION_PTHREAD_IMPL;
66 void ff_tls_init(void)
68 avpriv_lock_avformat();
72 SSL_load_error_strings();
74 if (!CRYPTO_get_locking_callback()) {
76 openssl_mutexes = av_malloc(sizeof(pthread_mutex_t) * CRYPTO_num_locks());
77 for (i = 0; i < CRYPTO_num_locks(); i++)
78 pthread_mutex_init(&openssl_mutexes[i], NULL);
79 CRYPTO_set_locking_callback(openssl_lock);
80 #if !defined(WIN32) && OPENSSL_VERSION_NUMBER < 0x10000000
81 CRYPTO_set_id_callback(openssl_thread_id);
89 #if HAVE_THREADS && GNUTLS_VERSION_NUMBER < 0x020b00
90 if (gcry_control(GCRYCTL_ANY_INITIALIZATION_P) == 0)
91 gcry_control(GCRYCTL_SET_THREAD_CBS, &gcry_threads_pthread);
95 avpriv_unlock_avformat();
98 void ff_tls_deinit(void)
100 avpriv_lock_avformat();
105 if (CRYPTO_get_locking_callback() == openssl_lock) {
107 CRYPTO_set_locking_callback(NULL);
108 for (i = 0; i < CRYPTO_num_locks(); i++)
109 pthread_mutex_destroy(&openssl_mutexes[i]);
110 av_free(openssl_mutexes);
116 gnutls_global_deinit();
118 avpriv_unlock_avformat();
121 int ff_network_inited_globally;
123 int ff_network_init(void)
129 if (!ff_network_inited_globally)
130 av_log(NULL, AV_LOG_WARNING, "Using network protocols without global "
131 "network initialization. Please use "
132 "avformat_network_init(), this will "
133 "become mandatory later.\n");
135 if (WSAStartup(MAKEWORD(1,1), &wsaData))
141 int ff_network_wait_fd(int fd, int write)
143 int ev = write ? POLLOUT : POLLIN;
144 struct pollfd p = { .fd = fd, .events = ev, .revents = 0 };
146 ret = poll(&p, 1, 100);
147 return ret < 0 ? ff_neterrno() : p.revents & (ev | POLLERR | POLLHUP) ? 0 : AVERROR(EAGAIN);
150 void ff_network_close(void)
158 int ff_neterrno(void)
160 int err = WSAGetLastError();
163 return AVERROR(EAGAIN);
165 return AVERROR(EINTR);
166 case WSAEPROTONOSUPPORT:
167 return AVERROR(EPROTONOSUPPORT);
169 return AVERROR(ETIMEDOUT);
170 case WSAECONNREFUSED:
171 return AVERROR(ECONNREFUSED);
173 return AVERROR(EINPROGRESS);
179 int ff_is_multicast_address(struct sockaddr *addr)
181 if (addr->sa_family == AF_INET) {
182 return IN_MULTICAST(ntohl(((struct sockaddr_in *)addr)->sin_addr.s_addr));
184 #if HAVE_STRUCT_SOCKADDR_IN6
185 if (addr->sa_family == AF_INET6) {
186 return IN6_IS_ADDR_MULTICAST(&((struct sockaddr_in6 *)addr)->sin6_addr);
193 static int ff_poll_interrupt(struct pollfd *p, nfds_t nfds, int timeout,
196 int runs = timeout / POLLING_TIME;
200 if (ff_check_interrupt(cb))
202 ret = poll(p, nfds, POLLING_TIME);
205 } while (timeout < 0 || runs-- > 0);
208 return AVERROR(ETIMEDOUT);
210 return AVERROR(errno);
214 int ff_socket(int af, int type, int proto)
219 fd = socket(af, type | SOCK_CLOEXEC, proto);
220 if (fd == -1 && errno == EINVAL)
223 fd = socket(af, type, proto);
226 fcntl(fd, F_SETFD, FD_CLOEXEC);
232 int ff_listen_bind(int fd, const struct sockaddr *addr,
233 socklen_t addrlen, int timeout, URLContext *h)
237 struct pollfd lp = { fd, POLLIN, 0 };
238 setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &reuse, sizeof(reuse));
239 ret = bind(fd, addr, addrlen);
241 return ff_neterrno();
245 return ff_neterrno();
247 ret = ff_poll_interrupt(&lp, 1, timeout, &h->interrupt_callback);
251 ret = accept(fd, NULL, NULL);
253 return ff_neterrno();
257 ff_socket_nonblock(ret, 1);
261 int ff_listen_connect(int fd, const struct sockaddr *addr,
262 socklen_t addrlen, int timeout, URLContext *h,
265 struct pollfd p = {fd, POLLOUT, 0};
269 ff_socket_nonblock(fd, 1);
271 while ((ret = connect(fd, addr, addrlen))) {
275 if (ff_check_interrupt(&h->interrupt_callback))
278 case AVERROR(EINPROGRESS):
279 case AVERROR(EAGAIN):
280 ret = ff_poll_interrupt(&p, 1, timeout, &h->interrupt_callback);
283 optlen = sizeof(ret);
284 if (getsockopt (fd, SOL_SOCKET, SO_ERROR, &ret, &optlen))
285 ret = AVUNERROR(ff_neterrno());
289 av_strerror(ret, errbuf, sizeof(errbuf));
291 av_log(h, AV_LOG_WARNING,
292 "Connection to %s failed (%s), trying next address\n",
293 h->filename, errbuf);
295 av_log(h, AV_LOG_ERROR, "Connection to %s failed: %s\n",
296 h->filename, errbuf);
305 static int match_host_pattern(const char *pattern, const char *hostname)
308 if (!strcmp(pattern, "*"))
310 // Skip a possible *. at the start of the pattern
311 if (pattern[0] == '*')
313 if (pattern[0] == '.')
315 len_p = strlen(pattern);
316 len_h = strlen(hostname);
319 // Simply check if the end of hostname is equal to 'pattern'
320 if (!strcmp(pattern, &hostname[len_h - len_p])) {
322 return 1; // Exact match
323 if (hostname[len_h - len_p - 1] == '.')
324 return 1; // The matched substring is a domain and not just a substring of a domain
329 int ff_http_match_no_proxy(const char *no_proxy, const char *hostname)
337 buf = av_strdup(no_proxy);
342 char *sep, *next = NULL;
343 start += strspn(start, " ,");
344 sep = start + strcspn(start, " ,");
349 if (match_host_pattern(start, hostname)) {