vlc_network.h
资源名称:vlc-1.0.5.zip [点击查看]
上传用户:kjfoods
上传日期:2020-07-06
资源大小:29949k
文件大小:10k
源码类别:
midi
开发平台:
Unix_Linux
- /*****************************************************************************
- * vlc_network.h: interface to communicate with network plug-ins
- *****************************************************************************
- * Copyright (C) 2002-2005 the VideoLAN team
- * Copyright © 2006-2007 Rémi Denis-Courmont
- * $Id: c3cc983469e3d785983fc0d4512ff725c5678a0e $
- *
- * Authors: Christophe Massiot <massiot@via.ecp.fr>
- * Laurent Aimar <fenrir@via.ecp.fr>
- * Rémi Denis-Courmont <rem # videolan.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program 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 General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
- *****************************************************************************/
- #ifndef VLC_NETWORK_H
- # define VLC_NETWORK_H
- /**
- * file
- * This file defines interface to communicate with network plug-ins
- */
- #if defined( WIN32 )
- # if !defined(UNDER_CE)
- # define _NO_OLDNAMES 1
- # include <io.h>
- # endif
- # include <winsock2.h>
- # include <ws2tcpip.h>
- # define ENETUNREACH WSAENETUNREACH
- # define net_errno (WSAGetLastError())
- extern const char *net_strerror( int val );
- struct iovec
- {
- void *iov_base;
- size_t iov_len;
- };
- struct msghdr
- {
- void *msg_name;
- size_t msg_namelen;
- struct iovec *msg_iov;
- size_t msg_iovlen;
- void *msg_control;
- size_t msg_controllen;
- int msg_flags;
- };
- # ifndef IPV6_V6ONLY
- # define IPV6_V6ONLY 27
- # endif
- #else
- # include <sys/socket.h>
- # ifdef HAVE_NETINET_IN_H
- # include <netinet/in.h>
- # endif
- # ifdef HAVE_ARPA_INET_H
- # include <arpa/inet.h>
- # elif defined( SYS_BEOS )
- # include <net/netdb.h>
- # endif
- # include <netdb.h>
- # define net_errno errno
- #endif
- # ifdef __cplusplus
- extern "C" {
- # endif
- /* Portable networking layer communication */
- int net_Socket (vlc_object_t *obj, int family, int socktype, int proto);
- int net_SetupSocket (int fd);
- #define net_Connect(a, b, c, d, e) __net_Connect(VLC_OBJECT(a), b, c, d, e)
- VLC_EXPORT( int, __net_Connect, (vlc_object_t *p_this, const char *psz_host, int i_port, int socktype, int protocol) );
- VLC_EXPORT( int *, net_Listen, (vlc_object_t *p_this, const char *psz_host, int i_port, int protocol) );
- #define net_ListenTCP(a, b, c) net_Listen(VLC_OBJECT(a), b, c, IPPROTO_TCP)
- #define net_ConnectTCP(a, b, c) __net_ConnectTCP(VLC_OBJECT(a), b, c)
- static inline int __net_ConnectTCP (vlc_object_t *obj, const char *host, int port)
- {
- return __net_Connect (obj, host, port, SOCK_STREAM, IPPROTO_TCP);
- }
- VLC_EXPORT( int, net_AcceptSingle, (vlc_object_t *obj, int lfd) );
- VLC_EXPORT( int, __net_Accept, ( vlc_object_t *, int *, mtime_t ) );
- #define net_Accept(a, b, c)
- __net_Accept(VLC_OBJECT(a), b, (c == -1) ? -1 : (c ? check_delay(c) : 0))
- #define net_ConnectDgram(a, b, c, d, e ) __net_ConnectDgram(VLC_OBJECT(a), b, c, d, e)
- VLC_EXPORT( int, __net_ConnectDgram, ( vlc_object_t *p_this, const char *psz_host, int i_port, int hlim, int proto ) );
- static inline int net_ConnectUDP (vlc_object_t *obj, const char *host, int port, int hlim)
- {
- return net_ConnectDgram (obj, host, port, hlim, IPPROTO_UDP);
- }
- #define net_OpenDgram( a, b, c, d, e, g, h ) __net_OpenDgram(VLC_OBJECT(a), b, c, d, e, g, h)
- VLC_EXPORT( int, __net_OpenDgram, ( vlc_object_t *p_this, const char *psz_bind, int i_bind, const char *psz_server, int i_server, int family, int proto ) );
- static inline int net_ListenUDP1 (vlc_object_t *obj, const char *host, int port)
- {
- return net_OpenDgram (obj, host, port, NULL, 0, 0, IPPROTO_UDP);
- }
- VLC_EXPORT( void, net_ListenClose, ( int *fd ) );
- int net_Subscribe (vlc_object_t *obj, int fd, const struct sockaddr *addr,
- socklen_t addrlen);
- VLC_EXPORT( int, net_SetCSCov, ( int fd, int sendcov, int recvcov ) );
- /* Functions to read from or write to the networking layer */
- struct virtual_socket_t
- {
- void *p_sys;
- int (*pf_recv) ( void *, void *, int );
- int (*pf_send) ( void *, const void *, int );
- };
- #define net_Read(a,b,c,d,e,f) __net_Read(VLC_OBJECT(a),b,c,d,e,f)
- VLC_EXPORT( ssize_t, __net_Read, ( vlc_object_t *p_this, int fd, const v_socket_t *, void *p_data, size_t i_data, bool b_retry ) );
- #define net_Write(a,b,c,d,e) __net_Write(VLC_OBJECT(a),b,c,d,e)
- VLC_EXPORT( ssize_t, __net_Write, ( vlc_object_t *p_this, int fd, const v_socket_t *, const void *p_data, size_t i_data ) );
- #define net_Gets(a,b,c) __net_Gets(VLC_OBJECT(a),b,c)
- VLC_EXPORT( char *, __net_Gets, ( vlc_object_t *p_this, int fd, const v_socket_t * ) );
- VLC_EXPORT( ssize_t, net_Printf, ( vlc_object_t *p_this, int fd, const v_socket_t *, const char *psz_fmt, ... ) LIBVLC_FORMAT( 4, 5 ) );
- #define net_vaPrintf(a,b,c,d,e) __net_vaPrintf(VLC_OBJECT(a),b,c,d,e)
- VLC_EXPORT( ssize_t, __net_vaPrintf, ( vlc_object_t *p_this, int fd, const v_socket_t *, const char *psz_fmt, va_list args ) );
- /* Don't go to an extra call layer if we have the symbol */
- #ifndef HAVE_INET_PTON
- #define inet_pton vlc_inet_pton
- #endif
- #ifndef HAVE_INET_NTOP
- #define inet_ntop vlc_inet_ntop
- #endif
- VLC_EXPORT (int, vlc_inet_pton, (int af, const char *src, void *dst) );
- VLC_EXPORT (const char *, vlc_inet_ntop, (int af, const void *src,
- char *dst, socklen_t cnt) );
- #ifndef HAVE_POLL
- enum
- {
- POLLIN=1,
- POLLOUT=2,
- POLLPRI=4,
- POLLERR=8, // unsupported stub
- POLLHUP=16, // unsupported stub
- POLLNVAL=32 // unsupported stub
- };
- struct pollfd
- {
- int fd;
- int events;
- int revents;
- };
- # define poll(a, b, c) vlc_poll(a, b, c)
- #endif
- struct pollfd;
- VLC_EXPORT (int, vlc_poll, (struct pollfd *fds, unsigned nfds, int timeout));
- #ifdef WIN32
- /* Microsoft: same semantic, same value, different name... go figure */
- # define SHUT_RD SD_RECEIVE
- # define SHUT_WR SD_SEND
- # define SHUT_RDWR SD_BOTH
- # define net_Close( fd ) closesocket ((SOCKET)fd)
- #else
- #ifdef HAVE_UNISTD_H
- #include <unistd.h>
- #endif
- # define net_Close( fd ) (void)close (fd)
- #endif
- /* Portable network names/addresses resolution layer */
- /* GAI error codes */
- # ifndef EAI_BADFLAGS
- # define EAI_BADFLAGS -1
- # endif
- # ifndef EAI_NONAME
- # define EAI_NONAME -2
- # endif
- # ifndef EAI_AGAIN
- # define EAI_AGAIN -3
- # endif
- # ifndef EAI_FAIL
- # define EAI_FAIL -4
- # endif
- # ifndef EAI_NODATA
- # define EAI_NODATA -5
- # endif
- # ifndef EAI_FAMILY
- # define EAI_FAMILY -6
- # endif
- # ifndef EAI_SOCKTYPE
- # define EAI_SOCKTYPE -7
- # endif
- # ifndef EAI_SERVICE
- # define EAI_SERVICE -8
- # endif
- # ifndef EAI_ADDRFAMILY
- # define EAI_ADDRFAMILY -9
- # endif
- # ifndef EAI_MEMORY
- # define EAI_MEMORY -10
- # endif
- #ifndef EAI_OVERFLOW
- # define EAI_OVERFLOW -11
- #endif
- # ifndef EAI_SYSTEM
- # define EAI_SYSTEM -12
- # endif
- # ifndef NI_MAXHOST
- # define NI_MAXHOST 1025
- # define NI_MAXSERV 32
- # endif
- # define NI_MAXNUMERICHOST 64
- # ifndef NI_NUMERICHOST
- # define NI_NUMERICHOST 0x01
- # define NI_NUMERICSERV 0x02
- # define NI_NOFQDN 0x04
- # define NI_NAMEREQD 0x08
- # define NI_DGRAM 0x10
- # endif
- # ifndef HAVE_STRUCT_ADDRINFO
- struct addrinfo
- {
- int ai_flags;
- int ai_family;
- int ai_socktype;
- int ai_protocol;
- size_t ai_addrlen;
- struct sockaddr *ai_addr;
- char *ai_canonname;
- struct addrinfo *ai_next;
- };
- # define AI_PASSIVE 1
- # define AI_CANONNAME 2
- # define AI_NUMERICHOST 4
- # endif /* if !HAVE_STRUCT_ADDRINFO */
- #ifndef AI_NUMERICSERV
- # define AI_NUMERICSERV 0
- #endif
- VLC_EXPORT( const char *, vlc_gai_strerror, ( int ) );
- VLC_EXPORT( int, vlc_getnameinfo, ( const struct sockaddr *, int, char *, int, int *, int ) );
- VLC_EXPORT( int, vlc_getaddrinfo, ( vlc_object_t *, const char *, int, const struct addrinfo *, struct addrinfo ** ) );
- VLC_EXPORT( void, vlc_freeaddrinfo, ( struct addrinfo * ) );
- static inline bool
- net_SockAddrIsMulticast (const struct sockaddr *addr, socklen_t len)
- {
- switch (addr->sa_family)
- {
- #ifdef IN_MULTICAST
- case AF_INET:
- {
- const struct sockaddr_in *v4 = (const struct sockaddr_in *)addr;
- if ((size_t)len < sizeof (*v4))
- return false;
- return IN_MULTICAST (ntohl (v4->sin_addr.s_addr)) != 0;
- }
- #endif
- #ifdef IN6_IS_ADDR_MULTICAST
- case AF_INET6:
- {
- const struct sockaddr_in6 *v6 = (const struct sockaddr_in6 *)addr;
- if ((size_t)len < sizeof (*v6))
- return false;
- return IN6_IS_ADDR_MULTICAST (&v6->sin6_addr) != 0;
- }
- #endif
- }
- return false;
- }
- static inline int net_GetSockAddress( int fd, char *address, int *port )
- {
- struct sockaddr_storage addr;
- socklen_t addrlen = sizeof( addr );
- return getsockname( fd, (struct sockaddr *)&addr, &addrlen )
- || vlc_getnameinfo( (struct sockaddr *)&addr, addrlen, address,
- NI_MAXNUMERICHOST, port, NI_NUMERICHOST )
- ? VLC_EGENERIC : 0;
- }
- static inline int net_GetPeerAddress( int fd, char *address, int *port )
- {
- struct sockaddr_storage addr;
- socklen_t addrlen = sizeof( addr );
- return getpeername( fd, (struct sockaddr *)&addr, &addrlen )
- || vlc_getnameinfo( (struct sockaddr *)&addr, addrlen, address,
- NI_MAXNUMERICHOST, port, NI_NUMERICHOST )
- ? VLC_EGENERIC : 0;
- }
- static inline uint16_t net_GetPort (const struct sockaddr *addr)
- {
- switch (addr->sa_family)
- {
- #ifdef AF_INET6
- case AF_INET6:
- return ((const struct sockaddr_in6 *)addr)->sin6_port;
- #endif
- case AF_INET:
- return ((const struct sockaddr_in *)addr)->sin_port;
- }
- return 0;
- }
- static inline void net_SetPort (struct sockaddr *addr, uint16_t port)
- {
- switch (addr->sa_family)
- {
- #ifdef AF_INET6
- case AF_INET6:
- ((struct sockaddr_in6 *)addr)->sin6_port = port;
- break;
- #endif
- case AF_INET:
- ((struct sockaddr_in *)addr)->sin_port = port;
- break;
- }
- }
- # ifdef __cplusplus
- }
- # endif
- #endif