/* * Copyright (c) 2007 The FFmpeg Project * * This file is part of FFmpeg. * * FFmpeg is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * FFmpeg is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with FFmpeg; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #ifndef AVFORMAT_NETWORK_H #define AVFORMAT_NETWORK_H #include #include #include "config.h" #include "libavutil/error.h" #include "os_support.h" #include "avio.h" #include "url.h" #if HAVE_UNISTD_H #include #endif #if HAVE_WINSOCK2_H #include #include #ifndef EPROTONOSUPPORT #define EPROTONOSUPPORT WSAEPROTONOSUPPORT #endif #ifndef ETIMEDOUT #define ETIMEDOUT WSAETIMEDOUT #endif #ifndef ECONNREFUSED #define ECONNREFUSED WSAECONNREFUSED #endif #ifndef EINPROGRESS #define EINPROGRESS WSAEINPROGRESS #endif #define getsockopt(a, b, c, d, e) getsockopt(a, b, c, (char*) d, e) #define setsockopt(a, b, c, d, e) setsockopt(a, b, c, (const char*) d, e) int ff_neterrno(void); #else #include #include #include #include #include #define ff_neterrno() AVERROR(errno) #endif /* HAVE_WINSOCK2_H */ #if HAVE_ARPA_INET_H #include #endif #if HAVE_POLL_H #include #endif int ff_socket_nonblock(int socket, int enable); int ff_network_init(void); void ff_network_close(void); int ff_tls_init(void); void ff_tls_deinit(void); int ff_network_wait_fd(int fd, int write); /** * This works similarly to ff_network_wait_fd, but waits up to 'timeout' microseconds * Uses ff_network_wait_fd in a loop * * @param fd Socket descriptor * @param write Set 1 to wait for socket able to be read, 0 to be written * @param timeout Timeout interval, in microseconds. Actual precision is 100000 mcs, due to ff_network_wait_fd usage * @param int_cb Interrupt callback, is checked before each ff_network_wait_fd call * @return 0 if data can be read/written, AVERROR(ETIMEDOUT) if timeout expired, or negative error code */ int ff_network_wait_fd_timeout(int fd, int write, int64_t timeout, AVIOInterruptCB *int_cb); /** * Waits for up to 'timeout' microseconds. If the usert's int_cb is set and * triggered, return before that. * @param timeout Timeout in microseconds. Maybe have lower actual precision. * @param int_cb Interrupt callback, is checked regularly. * @return AVERROR(ETIMEDOUT) if timeout expirted, AVERROR_EXIT if interrupted by int_cb */ int ff_network_sleep_interruptible(int64_t timeout, AVIOInterruptCB *int_cb); #if !HAVE_STRUCT_SOCKADDR_STORAGE struct sockaddr_storage { #if HAVE_STRUCT_SOCKADDR_SA_LEN uint8_t ss_len; uint8_t ss_family; #else uint16_t ss_family; #endif /* HAVE_STRUCT_SOCKADDR_SA_LEN */ char ss_pad1[6]; int64_t ss_align; char ss_pad2[112]; }; #endif /* !HAVE_STRUCT_SOCKADDR_STORAGE */ typedef union sockaddr_union { struct sockaddr_storage storage; struct sockaddr_in in; #if HAVE_STRUCT_SOCKADDR_IN6 struct sockaddr_in6 in6; #endif } sockaddr_union; #ifndef MSG_NOSIGNAL #define MSG_NOSIGNAL 0 #endif #if !HAVE_STRUCT_ADDRINFO struct addrinfo { int ai_flags; int ai_family; int ai_socktype; int ai_protocol; int ai_addrlen; struct sockaddr *ai_addr; char *ai_canonname; struct addrinfo *ai_next; }; #endif /* !HAVE_STRUCT_ADDRINFO */ /* getaddrinfo constants */ #ifndef EAI_AGAIN #define EAI_AGAIN 2 #endif #ifndef EAI_BADFLAGS #define EAI_BADFLAGS 3 #endif #ifndef EAI_FAIL #define EAI_FAIL 4 #endif #ifndef EAI_FAMILY #define EAI_FAMILY 5 #endif #ifndef EAI_MEMORY #define EAI_MEMORY 6 #endif #ifndef EAI_NODATA #define EAI_NODATA 7 #endif #ifndef EAI_NONAME #define EAI_NONAME 8 #endif #ifndef EAI_SERVICE #define EAI_SERVICE 9 #endif #ifndef EAI_SOCKTYPE #define EAI_SOCKTYPE 10 #endif #ifndef AI_PASSIVE #define AI_PASSIVE 1 #endif #ifndef AI_CANONNAME #define AI_CANONNAME 2 #endif #ifndef AI_NUMERICHOST #define AI_NUMERICHOST 4 #endif #ifndef NI_NOFQDN #define NI_NOFQDN 1 #endif #ifndef NI_NUMERICHOST #define NI_NUMERICHOST 2 #endif #ifndef NI_NAMERQD #define NI_NAMERQD 4 #endif #ifndef NI_NUMERICSERV #define NI_NUMERICSERV 8 #endif #ifndef NI_DGRAM #define NI_DGRAM 16 #endif #if !HAVE_GETADDRINFO int ff_getaddrinfo(const char *node, const char *service, const struct addrinfo *hints, struct addrinfo **res); void ff_freeaddrinfo(struct addrinfo *res); int ff_getnameinfo(const struct sockaddr *sa, int salen, char *host, int hostlen, char *serv, int servlen, int flags); #define getaddrinfo ff_getaddrinfo #define freeaddrinfo ff_freeaddrinfo #define getnameinfo ff_getnameinfo #endif /* !HAVE_GETADDRINFO */ #if !HAVE_GETADDRINFO || HAVE_WINSOCK2_H const char *ff_gai_strerror(int ecode); #undef gai_strerror #define gai_strerror ff_gai_strerror #endif /* !HAVE_GETADDRINFO || HAVE_WINSOCK2_H */ #ifndef INADDR_LOOPBACK #define INADDR_LOOPBACK 0x7f000001 #endif #ifndef INET_ADDRSTRLEN #define INET_ADDRSTRLEN 16 #endif #ifndef INET6_ADDRSTRLEN #define INET6_ADDRSTRLEN INET_ADDRSTRLEN #endif #ifndef IN_MULTICAST #define IN_MULTICAST(a) ((((uint32_t)(a)) & 0xf0000000) == 0xe0000000) #endif #ifndef IN6_IS_ADDR_MULTICAST #define IN6_IS_ADDR_MULTICAST(a) (((uint8_t *) (a))[0] == 0xff) #endif int ff_is_multicast_address(struct sockaddr *addr); #define POLLING_TIME 100 /// Time in milliseconds between interrupt check /** * Bind to a file descriptor and poll for a connection. * * @param fd First argument of bind(). * @param addr Second argument of bind(). * @param addrlen Third argument of bind(). * @param timeout Polling timeout in milliseconds. * @param h URLContext providing interrupt check * callback and logging context. * @return A non-blocking file descriptor on success * or an AVERROR on failure. */ int ff_listen_bind(int fd, const struct sockaddr *addr, socklen_t addrlen, int timeout, URLContext *h); /** * Bind to a file descriptor to an address without accepting connections. * @param fd First argument of bind(). * @param addr Second argument of bind(). * @param addrlen Third argument of bind(). * @return 0 on success or an AVERROR on failure. */ int ff_listen(int fd, const struct sockaddr *addr, socklen_t addrlen); /** * Poll for a single connection on the passed file descriptor. * @param fd The listening socket file descriptor. * @param timeout Polling timeout in milliseconds. * @param h URLContext providing interrupt check * callback and logging context. * @return A non-blocking file descriptor on success * or an AVERROR on failure. */ int ff_accept(int fd, int timeout, URLContext *h); /** * Connect to a file descriptor and poll for result. * * @param fd First argument of connect(), * will be set as non-blocking. * @param addr Second argument of connect(). * @param addrlen Third argument of connect(). * @param timeout Polling timeout in milliseconds. * @param h URLContext providing interrupt check * callback and logging context. * @param will_try_next Whether the caller will try to connect to another * address for the same host name, affecting the form of * logged errors. * @return 0 on success, AVERROR on failure. */ int ff_listen_connect(int fd, const struct sockaddr *addr, socklen_t addrlen, int timeout, URLContext *h, int will_try_next); int ff_http_match_no_proxy(const char *no_proxy, const char *hostname); int ff_socket(int domain, int type, int protocol); void ff_log_net_error(void *ctx, int level, const char* prefix); #endif /* AVFORMAT_NETWORK_H */