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7ac57fa5eb
The header probably isn't the right permanent place for this function, but it is quite small, and consensus seems to be that it can stay in the header for now, instead of creating a new file network.c just for this one. Originally committed as revision 25387 to svn://svn.ffmpeg.org/ffmpeg/trunk
180 lines
3.9 KiB
C
180 lines
3.9 KiB
C
/*
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* Copyright (c) 2007 The FFmpeg Project
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef AVFORMAT_NETWORK_H
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#define AVFORMAT_NETWORK_H
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#include "config.h"
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#if HAVE_WINSOCK2_H
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#include <winsock2.h>
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#include <ws2tcpip.h>
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#define ff_neterrno() (-WSAGetLastError())
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#define FF_NETERROR(err) (-WSA##err)
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#define WSAEAGAIN WSAEWOULDBLOCK
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#else
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <netinet/in.h>
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#include <netdb.h>
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#define ff_neterrno() AVERROR(errno)
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#define FF_NETERROR(err) AVERROR(err)
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#endif
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#if HAVE_ARPA_INET_H
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#include <arpa/inet.h>
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#endif
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int ff_socket_nonblock(int socket, int enable);
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static inline int ff_network_init(void)
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{
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#if HAVE_WINSOCK2_H
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WSADATA wsaData;
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if (WSAStartup(MAKEWORD(1,1), &wsaData))
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return 0;
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#endif
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return 1;
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}
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static inline void ff_network_close(void)
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{
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#if HAVE_WINSOCK2_H
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WSACleanup();
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#endif
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}
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int ff_inet_aton (const char * str, struct in_addr * add);
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#if !HAVE_STRUCT_SOCKADDR_STORAGE
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struct sockaddr_storage {
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#if HAVE_STRUCT_SOCKADDR_SA_LEN
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uint8_t ss_len;
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uint8_t ss_family;
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#else
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uint16_t ss_family;
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#endif
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char ss_pad1[6];
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int64_t ss_align;
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char ss_pad2[112];
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};
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#endif
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#if !HAVE_STRUCT_ADDRINFO
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struct addrinfo {
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int ai_flags;
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int ai_family;
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int ai_socktype;
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int ai_protocol;
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int ai_addrlen;
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struct sockaddr *ai_addr;
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char *ai_canonname;
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struct addrinfo *ai_next;
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};
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#endif
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/* getaddrinfo constants */
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#ifndef EAI_FAIL
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#define EAI_FAIL 4
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#endif
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#ifndef EAI_FAMILY
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#define EAI_FAMILY 5
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#endif
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#ifndef EAI_NONAME
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#define EAI_NONAME 8
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#endif
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#ifndef AI_PASSIVE
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#define AI_PASSIVE 1
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#endif
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#ifndef AI_CANONNAME
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#define AI_CANONNAME 2
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#endif
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#ifndef AI_NUMERICHOST
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#define AI_NUMERICHOST 4
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#endif
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#ifndef NI_NOFQDN
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#define NI_NOFQDN 1
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#endif
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#ifndef NI_NUMERICHOST
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#define NI_NUMERICHOST 2
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#endif
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#ifndef NI_NAMERQD
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#define NI_NAMERQD 4
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#endif
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#ifndef NI_NUMERICSERV
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#define NI_NUMERICSERV 8
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#endif
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#ifndef NI_DGRAM
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#define NI_DGRAM 16
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#endif
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#if !HAVE_GETADDRINFO
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int ff_getaddrinfo(const char *node, const char *service,
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const struct addrinfo *hints, struct addrinfo **res);
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void ff_freeaddrinfo(struct addrinfo *res);
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int ff_getnameinfo(const struct sockaddr *sa, int salen,
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char *host, int hostlen,
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char *serv, int servlen, int flags);
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const char *ff_gai_strerror(int ecode);
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#define getaddrinfo ff_getaddrinfo
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#define freeaddrinfo ff_freeaddrinfo
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#define getnameinfo ff_getnameinfo
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#define gai_strerror ff_gai_strerror
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#endif
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#ifndef INET6_ADDRSTRLEN
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#define INET6_ADDRSTRLEN INET_ADDRSTRLEN
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#endif
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#ifndef IN_MULTICAST
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#define IN_MULTICAST(a) ((((uint32_t)(a)) & 0xf0000000) == 0xe0000000)
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#endif
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#ifndef IN6_IS_ADDR_MULTICAST
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#define IN6_IS_ADDR_MULTICAST(a) (((uint8_t *) (a))[0] == 0xff)
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#endif
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static inline int ff_is_multicast_address(struct sockaddr_storage *addr)
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{
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if (addr->ss_family == AF_INET) {
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return IN_MULTICAST(ntohl(((struct sockaddr_in *)addr)->sin_addr.s_addr));
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}
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#if HAVE_STRUCT_SOCKADDR_IN6
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if (addr->ss_family == AF_INET6) {
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return IN6_IS_ADDR_MULTICAST(&((struct sockaddr_in6 *)addr)->sin6_addr);
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}
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#endif
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return 0;
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}
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#endif /* AVFORMAT_NETWORK_H */
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