FFmpeg: libavformat/network.h Source File

00001 /*
00002  * Copyright (c) 2007 The FFmpeg Project
00003  *
00004  * This file is part of FFmpeg.
00005  *
00006  * FFmpeg is free software; you can redistribute it and/or
00007  * modify it under the terms of the GNU Lesser General Public
00008  * License as published by the Free Software Foundation; either
00009  * version 2.1 of the License, or (at your option) any later version.
00010  *
00011  * FFmpeg is distributed in the hope that it will be useful,
00012  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00013  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00014  * Lesser General Public License for more details.
00015  *
00016  * You should have received a copy of the GNU Lesser General Public
00017  * License along with FFmpeg; if not, write to the Free Software
00018  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
00019  */
00020 
00021 #ifndef AVFORMAT_NETWORK_H
00022 #define AVFORMAT_NETWORK_H
00023 
00024 #include <errno.h>
00025 
00026 #include "config.h"
00027 #include "libavutil/error.h"
00028 #include "os_support.h"
00029 
00030 #if HAVE_UNISTD_H
00031 #include <unistd.h>
00032 #endif
00033 
00034 #if HAVE_WINSOCK2_H
00035 #include <winsock2.h>
00036 #include <ws2tcpip.h>
00037 
00038 #ifndef EPROTONOSUPPORT
00039 #define EPROTONOSUPPORT WSAEPROTONOSUPPORT
00040 #endif
00041 #ifndef ETIMEDOUT
00042 #define ETIMEDOUT       WSAETIMEDOUT
00043 #endif
00044 #ifndef ECONNREFUSED
00045 #define ECONNREFUSED    WSAECONNREFUSED
00046 #endif
00047 #ifndef EINPROGRESS
00048 #define EINPROGRESS     WSAEINPROGRESS
00049 #endif
00050 
00051 #define getsockopt(a, b, c, d, e) getsockopt(a, b, c, (char*) d, e)
00052 #define setsockopt(a, b, c, d, e) setsockopt(a, b, c, (const char*) d, e)
00053 
00054 int ff_neterrno(void);
00055 #else
00056 #include <sys/types.h>
00057 #include <sys/socket.h>
00058 #include <netinet/in.h>
00059 #include <netdb.h>
00060 
00061 #define ff_neterrno() AVERROR(errno)
00062 #endif
00063 
00064 #if HAVE_ARPA_INET_H
00065 #include <arpa/inet.h>
00066 #endif
00067 
00068 #if HAVE_POLL_H
00069 #include <poll.h>
00070 #endif
00071 
00072 int ff_socket_nonblock(int socket, int enable);
00073 
00074 extern int ff_network_inited_globally;
00075 int ff_network_init(void);
00076 void ff_network_close(void);
00077 
00078 void ff_tls_init(void);
00079 void ff_tls_deinit(void);
00080 
00081 int ff_network_wait_fd(int fd, int write);
00082 
00083 int ff_inet_aton (const char * str, struct in_addr * add);
00084 
00085 #if !HAVE_STRUCT_SOCKADDR_STORAGE
00086 struct sockaddr_storage {
00087 #if HAVE_STRUCT_SOCKADDR_SA_LEN
00088     uint8_t ss_len;
00089     uint8_t ss_family;
00090 #else
00091     uint16_t ss_family;
00092 #endif
00093     char ss_pad1[6];
00094     int64_t ss_align;
00095     char ss_pad2[112];
00096 };
00097 #endif
00098 
00099 #if !HAVE_STRUCT_ADDRINFO
00100 struct addrinfo {
00101     int ai_flags;
00102     int ai_family;
00103     int ai_socktype;
00104     int ai_protocol;
00105     int ai_addrlen;
00106     struct sockaddr *ai_addr;
00107     char *ai_canonname;
00108     struct addrinfo *ai_next;
00109 };
00110 #endif
00111 
00112 /* getaddrinfo constants */
00113 #ifndef EAI_AGAIN
00114 #define EAI_AGAIN 2
00115 #endif
00116 #ifndef EAI_BADFLAGS
00117 #define EAI_BADFLAGS 3
00118 #endif
00119 #ifndef EAI_FAIL
00120 #define EAI_FAIL 4
00121 #endif
00122 #ifndef EAI_FAMILY
00123 #define EAI_FAMILY 5
00124 #endif
00125 #ifndef EAI_MEMORY
00126 #define EAI_MEMORY 6
00127 #endif
00128 #ifndef EAI_NODATA
00129 #define EAI_NODATA 7
00130 #endif
00131 #ifndef EAI_NONAME
00132 #define EAI_NONAME 8
00133 #endif
00134 #ifndef EAI_SERVICE
00135 #define EAI_SERVICE 9
00136 #endif
00137 #ifndef EAI_SOCKTYPE
00138 #define EAI_SOCKTYPE 10
00139 #endif
00140 
00141 #ifndef AI_PASSIVE
00142 #define AI_PASSIVE 1
00143 #endif
00144 
00145 #ifndef AI_CANONNAME
00146 #define AI_CANONNAME 2
00147 #endif
00148 
00149 #ifndef AI_NUMERICHOST
00150 #define AI_NUMERICHOST 4
00151 #endif
00152 
00153 #ifndef NI_NOFQDN
00154 #define NI_NOFQDN 1
00155 #endif
00156 
00157 #ifndef NI_NUMERICHOST
00158 #define NI_NUMERICHOST 2
00159 #endif
00160 
00161 #ifndef NI_NAMERQD
00162 #define NI_NAMERQD 4
00163 #endif
00164 
00165 #ifndef NI_NUMERICSERV
00166 #define NI_NUMERICSERV 8
00167 #endif
00168 
00169 #ifndef NI_DGRAM
00170 #define NI_DGRAM 16
00171 #endif
00172 
00173 #if !HAVE_GETADDRINFO
00174 int ff_getaddrinfo(const char *node, const char *service,
00175                    const struct addrinfo *hints, struct addrinfo **res);
00176 void ff_freeaddrinfo(struct addrinfo *res);
00177 int ff_getnameinfo(const struct sockaddr *sa, int salen,
00178                    char *host, int hostlen,
00179                    char *serv, int servlen, int flags);
00180 #define getaddrinfo ff_getaddrinfo
00181 #define freeaddrinfo ff_freeaddrinfo
00182 #define getnameinfo ff_getnameinfo
00183 #endif
00184 #if !HAVE_GETADDRINFO || HAVE_WINSOCK2_H
00185 const char *ff_gai_strerror(int ecode);
00186 #undef gai_strerror
00187 #define gai_strerror ff_gai_strerror
00188 #endif
00189 
00190 #ifndef INET6_ADDRSTRLEN
00191 #define INET6_ADDRSTRLEN INET_ADDRSTRLEN
00192 #endif
00193 
00194 #ifndef IN_MULTICAST
00195 #define IN_MULTICAST(a) ((((uint32_t)(a)) & 0xf0000000) == 0xe0000000)
00196 #endif
00197 #ifndef IN6_IS_ADDR_MULTICAST
00198 #define IN6_IS_ADDR_MULTICAST(a) (((uint8_t *) (a))[0] == 0xff)
00199 #endif
00200 
00201 int ff_is_multicast_address(struct sockaddr *addr);
00202 
00203 #endif /* AVFORMAT_NETWORK_H */