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204 lines
4.4 KiB
204 lines
4.4 KiB
/* |
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* Copyright (c) 2007 The Libav Project |
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* |
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* This file is part of Libav. |
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* |
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* Libav 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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* Libav 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 Libav; 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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#include "os_support.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 EPROTONOSUPPORT WSAEPROTONOSUPPORT |
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#define ETIMEDOUT WSAETIMEDOUT |
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#define ECONNREFUSED WSAECONNREFUSED |
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#define EINPROGRESS WSAEINPROGRESS |
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static inline int ff_neterrno() { |
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int err = WSAGetLastError(); |
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switch (err) { |
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case WSAEWOULDBLOCK: |
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return AVERROR(EAGAIN); |
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case WSAEINTR: |
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return AVERROR(EINTR); |
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} |
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return -err; |
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} |
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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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#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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#if HAVE_POLL_H |
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#include <poll.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 int ff_network_wait_fd(int fd, int write) |
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{ |
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int ev = write ? POLLOUT : POLLIN; |
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struct pollfd p = { .fd = fd, .events = ev, .revents = 0 }; |
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int ret; |
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ret = poll(&p, 1, 100); |
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return ret < 0 ? ff_neterrno() : p.revents & (ev | POLLERR | POLLHUP) ? 0 : AVERROR(EAGAIN); |
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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 *addr) |
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{ |
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if (addr->sa_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->sa_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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