| 1 | /* |
| 2 | * Copyright (c) 2007 The FFmpeg Project |
| 3 | * |
| 4 | * This file is part of FFmpeg. |
| 5 | * |
| 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. |
| 10 | * |
| 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. |
| 15 | * |
| 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 |
| 19 | */ |
| 20 | |
| 21 | #ifndef AVFORMAT_NETWORK_H |
| 22 | #define AVFORMAT_NETWORK_H |
| 23 | |
| 24 | #include <errno.h> |
| 25 | #include <stdint.h> |
| 26 | |
| 27 | #include "config.h" |
| 28 | #include "libavutil/error.h" |
| 29 | #include "os_support.h" |
| 30 | #include "avio.h" |
| 31 | #include "url.h" |
| 32 | |
| 33 | #if HAVE_UNISTD_H |
| 34 | #include <unistd.h> |
| 35 | #endif |
| 36 | |
| 37 | #if HAVE_WINSOCK2_H |
| 38 | #include <winsock2.h> |
| 39 | #include <ws2tcpip.h> |
| 40 | |
| 41 | #ifndef EPROTONOSUPPORT |
| 42 | #define EPROTONOSUPPORT WSAEPROTONOSUPPORT |
| 43 | #endif |
| 44 | #ifndef ETIMEDOUT |
| 45 | #define ETIMEDOUT WSAETIMEDOUT |
| 46 | #endif |
| 47 | #ifndef ECONNREFUSED |
| 48 | #define ECONNREFUSED WSAECONNREFUSED |
| 49 | #endif |
| 50 | #ifndef EINPROGRESS |
| 51 | #define EINPROGRESS WSAEINPROGRESS |
| 52 | #endif |
| 53 | |
| 54 | #define getsockopt(a, b, c, d, e) getsockopt(a, b, c, (char*) d, e) |
| 55 | #define setsockopt(a, b, c, d, e) setsockopt(a, b, c, (const char*) d, e) |
| 56 | |
| 57 | int ff_neterrno(void); |
| 58 | #else |
| 59 | #include <sys/types.h> |
| 60 | #include <sys/socket.h> |
| 61 | #include <netinet/in.h> |
| 62 | #include <netdb.h> |
| 63 | |
| 64 | #define ff_neterrno() AVERROR(errno) |
| 65 | #endif /* HAVE_WINSOCK2_H */ |
| 66 | |
| 67 | #if HAVE_ARPA_INET_H |
| 68 | #include <arpa/inet.h> |
| 69 | #endif |
| 70 | |
| 71 | #if HAVE_POLL_H |
| 72 | #include <poll.h> |
| 73 | #endif |
| 74 | |
| 75 | int ff_socket_nonblock(int socket, int enable); |
| 76 | |
| 77 | extern int ff_network_inited_globally; |
| 78 | int ff_network_init(void); |
| 79 | void ff_network_close(void); |
| 80 | |
| 81 | void ff_tls_init(void); |
| 82 | void ff_tls_deinit(void); |
| 83 | |
| 84 | int ff_network_wait_fd(int fd, int write); |
| 85 | |
| 86 | /** |
| 87 | * This works similarly to ff_network_wait_fd, but waits up to 'timeout' microseconds |
| 88 | * Uses ff_network_wait_fd in a loop |
| 89 | * |
| 90 | * @fd Socket descriptor |
| 91 | * @write Set 1 to wait for socket able to be read, 0 to be written |
| 92 | * @timeout Timeout interval, in microseconds. Actual precision is 100000 mcs, due to ff_network_wait_fd usage |
| 93 | * @param int_cb Interrupt callback, is checked before each ff_network_wait_fd call |
| 94 | * @return 0 if data can be read/written, AVERROR(ETIMEDOUT) if timeout expired, or negative error code |
| 95 | */ |
| 96 | int ff_network_wait_fd_timeout(int fd, int write, int64_t timeout, AVIOInterruptCB *int_cb); |
| 97 | |
| 98 | int ff_inet_aton (const char * str, struct in_addr * add); |
| 99 | |
| 100 | #if !HAVE_STRUCT_SOCKADDR_STORAGE |
| 101 | struct sockaddr_storage { |
| 102 | #if HAVE_STRUCT_SOCKADDR_SA_LEN |
| 103 | uint8_t ss_len; |
| 104 | uint8_t ss_family; |
| 105 | #else |
| 106 | uint16_t ss_family; |
| 107 | #endif /* HAVE_STRUCT_SOCKADDR_SA_LEN */ |
| 108 | char ss_pad1[6]; |
| 109 | int64_t ss_align; |
| 110 | char ss_pad2[112]; |
| 111 | }; |
| 112 | #endif /* !HAVE_STRUCT_SOCKADDR_STORAGE */ |
| 113 | |
| 114 | typedef union sockaddr_union { |
| 115 | struct sockaddr_storage storage; |
| 116 | struct sockaddr_in in; |
| 117 | #if HAVE_STRUCT_SOCKADDR_IN6 |
| 118 | struct sockaddr_in6 in6; |
| 119 | #endif |
| 120 | } sockaddr_union; |
| 121 | |
| 122 | #ifndef MSG_NOSIGNAL |
| 123 | #define MSG_NOSIGNAL 0 |
| 124 | #endif |
| 125 | |
| 126 | #if !HAVE_STRUCT_ADDRINFO |
| 127 | struct addrinfo { |
| 128 | int ai_flags; |
| 129 | int ai_family; |
| 130 | int ai_socktype; |
| 131 | int ai_protocol; |
| 132 | int ai_addrlen; |
| 133 | struct sockaddr *ai_addr; |
| 134 | char *ai_canonname; |
| 135 | struct addrinfo *ai_next; |
| 136 | }; |
| 137 | #endif /* !HAVE_STRUCT_ADDRINFO */ |
| 138 | |
| 139 | /* getaddrinfo constants */ |
| 140 | #ifndef EAI_AGAIN |
| 141 | #define EAI_AGAIN 2 |
| 142 | #endif |
| 143 | #ifndef EAI_BADFLAGS |
| 144 | #define EAI_BADFLAGS 3 |
| 145 | #endif |
| 146 | #ifndef EAI_FAIL |
| 147 | #define EAI_FAIL 4 |
| 148 | #endif |
| 149 | #ifndef EAI_FAMILY |
| 150 | #define EAI_FAMILY 5 |
| 151 | #endif |
| 152 | #ifndef EAI_MEMORY |
| 153 | #define EAI_MEMORY 6 |
| 154 | #endif |
| 155 | #ifndef EAI_NODATA |
| 156 | #define EAI_NODATA 7 |
| 157 | #endif |
| 158 | #ifndef EAI_NONAME |
| 159 | #define EAI_NONAME 8 |
| 160 | #endif |
| 161 | #ifndef EAI_SERVICE |
| 162 | #define EAI_SERVICE 9 |
| 163 | #endif |
| 164 | #ifndef EAI_SOCKTYPE |
| 165 | #define EAI_SOCKTYPE 10 |
| 166 | #endif |
| 167 | |
| 168 | #ifndef AI_PASSIVE |
| 169 | #define AI_PASSIVE 1 |
| 170 | #endif |
| 171 | |
| 172 | #ifndef AI_CANONNAME |
| 173 | #define AI_CANONNAME 2 |
| 174 | #endif |
| 175 | |
| 176 | #ifndef AI_NUMERICHOST |
| 177 | #define AI_NUMERICHOST 4 |
| 178 | #endif |
| 179 | |
| 180 | #ifndef NI_NOFQDN |
| 181 | #define NI_NOFQDN 1 |
| 182 | #endif |
| 183 | |
| 184 | #ifndef NI_NUMERICHOST |
| 185 | #define NI_NUMERICHOST 2 |
| 186 | #endif |
| 187 | |
| 188 | #ifndef NI_NAMERQD |
| 189 | #define NI_NAMERQD 4 |
| 190 | #endif |
| 191 | |
| 192 | #ifndef NI_NUMERICSERV |
| 193 | #define NI_NUMERICSERV 8 |
| 194 | #endif |
| 195 | |
| 196 | #ifndef NI_DGRAM |
| 197 | #define NI_DGRAM 16 |
| 198 | #endif |
| 199 | |
| 200 | #if !HAVE_GETADDRINFO |
| 201 | int ff_getaddrinfo(const char *node, const char *service, |
| 202 | const struct addrinfo *hints, struct addrinfo **res); |
| 203 | void ff_freeaddrinfo(struct addrinfo *res); |
| 204 | int ff_getnameinfo(const struct sockaddr *sa, int salen, |
| 205 | char *host, int hostlen, |
| 206 | char *serv, int servlen, int flags); |
| 207 | #define getaddrinfo ff_getaddrinfo |
| 208 | #define freeaddrinfo ff_freeaddrinfo |
| 209 | #define getnameinfo ff_getnameinfo |
| 210 | #endif /* !HAVE_GETADDRINFO */ |
| 211 | |
| 212 | #if !HAVE_GETADDRINFO || HAVE_WINSOCK2_H |
| 213 | const char *ff_gai_strerror(int ecode); |
| 214 | #undef gai_strerror |
| 215 | #define gai_strerror ff_gai_strerror |
| 216 | #endif /* !HAVE_GETADDRINFO || HAVE_WINSOCK2_H */ |
| 217 | |
| 218 | #ifndef INADDR_LOOPBACK |
| 219 | #define INADDR_LOOPBACK 0x7f000001 |
| 220 | #endif |
| 221 | |
| 222 | #ifndef INET_ADDRSTRLEN |
| 223 | #define INET_ADDRSTRLEN 16 |
| 224 | #endif |
| 225 | |
| 226 | #ifndef INET6_ADDRSTRLEN |
| 227 | #define INET6_ADDRSTRLEN INET_ADDRSTRLEN |
| 228 | #endif |
| 229 | |
| 230 | #ifndef IN_MULTICAST |
| 231 | #define IN_MULTICAST(a) ((((uint32_t)(a)) & 0xf0000000) == 0xe0000000) |
| 232 | #endif |
| 233 | #ifndef IN6_IS_ADDR_MULTICAST |
| 234 | #define IN6_IS_ADDR_MULTICAST(a) (((uint8_t *) (a))[0] == 0xff) |
| 235 | #endif |
| 236 | |
| 237 | int ff_is_multicast_address(struct sockaddr *addr); |
| 238 | |
| 239 | #define POLLING_TIME 100 /// Time in milliseconds between interrupt check |
| 240 | |
| 241 | /** |
| 242 | * Bind to a file descriptor and poll for a connection. |
| 243 | * |
| 244 | * @param fd First argument of bind(). |
| 245 | * @param addr Second argument of bind(). |
| 246 | * @param addrlen Third argument of bind(). |
| 247 | * @param timeout Polling timeout in milliseconds. |
| 248 | * @param h URLContext providing interrupt check |
| 249 | * callback and logging context. |
| 250 | * @return A non-blocking file descriptor on success |
| 251 | * or an AVERROR on failure. |
| 252 | */ |
| 253 | int ff_listen_bind(int fd, const struct sockaddr *addr, |
| 254 | socklen_t addrlen, int timeout, |
| 255 | URLContext *h); |
| 256 | |
| 257 | /** |
| 258 | * Connect to a file descriptor and poll for result. |
| 259 | * |
| 260 | * @param fd First argument of connect(), |
| 261 | * will be set as non-blocking. |
| 262 | * @param addr Second argument of connect(). |
| 263 | * @param addrlen Third argument of connect(). |
| 264 | * @param timeout Polling timeout in milliseconds. |
| 265 | * @param h URLContext providing interrupt check |
| 266 | * callback and logging context. |
| 267 | * @param will_try_next Whether the caller will try to connect to another |
| 268 | * address for the same host name, affecting the form of |
| 269 | * logged errors. |
| 270 | * @return 0 on success, AVERROR on failure. |
| 271 | */ |
| 272 | int ff_listen_connect(int fd, const struct sockaddr *addr, |
| 273 | socklen_t addrlen, int timeout, |
| 274 | URLContext *h, int will_try_next); |
| 275 | |
| 276 | int ff_http_match_no_proxy(const char *no_proxy, const char *hostname); |
| 277 | |
| 278 | int ff_socket(int domain, int type, int protocol); |
| 279 | |
| 280 | #endif /* AVFORMAT_NETWORK_H */ |