1 /*****************************************************************************
2 * vlc_network.h: interface to communicate with network plug-ins
3 *****************************************************************************
4 * Copyright (C) 2002-2005 the VideoLAN team
5 * Copyright © 2006-2007 Rémi Denis-Courmont
8 * Authors: Christophe Massiot <massiot@via.ecp.fr>
9 * Laurent Aimar <fenrir@via.ecp.fr>
10 * Rémi Denis-Courmont <rem # videolan.org>
12 * This program is free software; you can redistribute it and/or modify
13 * it under the terms of the GNU General Public License as published by
14 * the Free Software Foundation; either version 2 of the License, or
15 * (at your option) any later version.
17 * This program is distributed in the hope that it will be useful,
18 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 * GNU General Public License for more details.
22 * You should have received a copy of the GNU General Public License
23 * along with this program; if not, write to the Free Software
24 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
25 *****************************************************************************/
28 # define VLC_NETWORK_H
32 * This file defines interface to communicate with network plug-ins
36 # if !defined(UNDER_CE)
37 # define _NO_OLDNAMES 1
40 # include <winsock2.h>
41 # include <ws2tcpip.h>
42 # define ENETUNREACH WSAENETUNREACH
43 # define net_errno (WSAGetLastError())
44 extern const char *net_strerror( int val
);
56 struct iovec
*msg_iov
;
59 size_t msg_controllen
;
64 # define IPV6_V6ONLY 27
67 # include <sys/socket.h>
68 # ifdef HAVE_NETINET_IN_H
69 # include <netinet/in.h>
71 # ifdef HAVE_ARPA_INET_H
72 # include <arpa/inet.h>
75 # define net_errno errno
78 #if defined( __SYMBIAN32__ )
80 # undef IN6_IS_ADDR_MULTICAST
82 # undef IPV6_MULTICAST_HOPS
83 # undef IPV6_MULTICAST_IF
85 # undef IPV6_JOIN_GROUP
88 int vlc_socket (int, int, int, bool nonblock
) VLC_USED
;
91 VLC_API
int vlc_accept( int, struct sockaddr
*, socklen_t
*, bool ) VLC_USED
;
97 /* Portable networking layer communication */
98 int net_Socket (vlc_object_t
*obj
, int family
, int socktype
, int proto
);
100 VLC_API
int net_Connect(vlc_object_t
*p_this
, const char *psz_host
, int i_port
, int socktype
, int protocol
);
101 #define net_Connect(a, b, c, d, e) net_Connect(VLC_OBJECT(a), b, c, d, e)
103 VLC_API
int * net_Listen(vlc_object_t
*p_this
, const char *psz_host
, int i_port
, int socktype
, int protocol
);
105 #define net_ListenTCP(a, b, c) net_Listen(VLC_OBJECT(a), b, c, \
106 SOCK_STREAM, IPPROTO_TCP)
108 static inline int net_ConnectTCP (vlc_object_t
*obj
, const char *host
, int port
)
110 return net_Connect (obj
, host
, port
, SOCK_STREAM
, IPPROTO_TCP
);
112 #define net_ConnectTCP(a, b, c) net_ConnectTCP(VLC_OBJECT(a), b, c)
114 VLC_API
int net_AcceptSingle(vlc_object_t
*obj
, int lfd
);
116 VLC_API
int net_Accept( vlc_object_t
*, int * );
117 #define net_Accept(a, b) \
118 net_Accept(VLC_OBJECT(a), b)
120 VLC_API
int net_ConnectDgram( vlc_object_t
*p_this
, const char *psz_host
, int i_port
, int hlim
, int proto
);
121 #define net_ConnectDgram(a, b, c, d, e ) \
122 net_ConnectDgram(VLC_OBJECT(a), b, c, d, e)
124 static inline int net_ConnectUDP (vlc_object_t
*obj
, const char *host
, int port
, int hlim
)
126 return net_ConnectDgram (obj
, host
, port
, hlim
, IPPROTO_UDP
);
129 VLC_API
int net_OpenDgram( vlc_object_t
*p_this
, const char *psz_bind
, int i_bind
, const char *psz_server
, int i_server
, int proto
);
130 #define net_OpenDgram( a, b, c, d, e, g ) \
131 net_OpenDgram(VLC_OBJECT(a), b, c, d, e, g)
133 static inline int net_ListenUDP1 (vlc_object_t
*obj
, const char *host
, int port
)
135 return net_OpenDgram (obj
, host
, port
, NULL
, 0, IPPROTO_UDP
);
138 VLC_API
void net_ListenClose( int *fd
);
140 int net_Subscribe (vlc_object_t
*obj
, int fd
, const struct sockaddr
*addr
,
143 VLC_API
int net_SetCSCov( int fd
, int sendcov
, int recvcov
);
145 /* Functions to read from or write to the networking layer */
146 struct virtual_socket_t
149 int (*pf_recv
) ( void *, void *, size_t );
150 int (*pf_send
) ( void *, const void *, size_t );
153 VLC_API 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
);
154 #define net_Read(a,b,c,d,e,f) net_Read(VLC_OBJECT(a),b,c,d,e,f)
155 VLC_API ssize_t
net_Write( vlc_object_t
*p_this
, int fd
, const v_socket_t
*, const void *p_data
, size_t i_data
);
156 #define net_Write(a,b,c,d,e) net_Write(VLC_OBJECT(a),b,c,d,e)
157 VLC_API
char * net_Gets( vlc_object_t
*p_this
, int fd
, const v_socket_t
* );
158 #define net_Gets(a,b,c) net_Gets(VLC_OBJECT(a),b,c)
161 VLC_API ssize_t
net_Printf( vlc_object_t
*p_this
, int fd
, const v_socket_t
*, const char *psz_fmt
, ... ) VLC_FORMAT( 4, 5 );
162 #define net_Printf(o,fd,vs,...) net_Printf(VLC_OBJECT(o),fd,vs, __VA_ARGS__)
163 VLC_API ssize_t
net_vaPrintf( vlc_object_t
*p_this
, int fd
, const v_socket_t
*, const char *psz_fmt
, va_list args
);
164 #define net_vaPrintf(a,b,c,d,e) net_vaPrintf(VLC_OBJECT(a),b,c,d,e)
166 VLC_API
int vlc_inet_pton(int af
, const char *src
, void *dst
);
167 VLC_API
const char *vlc_inet_ntop(int af
, const void *src
,
168 char *dst
, socklen_t cnt
);
170 VLC_API
int vlc_poll(struct pollfd
*fds
, unsigned nfds
, int timeout
);
174 /* Microsoft: same semantic, same value, different name... go figure */
175 # define SHUT_RD SD_RECEIVE
176 # define SHUT_WR SD_SEND
177 # define SHUT_RDWR SD_BOTH
178 # define net_Close( fd ) closesocket ((SOCKET)fd)
183 # define net_Close( fd ) (void)close (fd)
186 /* Portable network names/addresses resolution layer */
188 /* GAI error codes */
189 # ifndef EAI_BADFLAGS
190 # define EAI_BADFLAGS -1
193 # define EAI_NONAME -2
196 # define EAI_AGAIN -3
202 # define EAI_NODATA -5
205 # define EAI_FAMILY -6
207 # ifndef EAI_SOCKTYPE
208 # define EAI_SOCKTYPE -7
211 # define EAI_SERVICE -8
213 # ifndef EAI_ADDRFAMILY
214 # define EAI_ADDRFAMILY -9
217 # define EAI_MEMORY -10
220 # define EAI_OVERFLOW -11
223 # define EAI_SYSTEM -12
228 # define NI_MAXHOST 1025
229 # define NI_MAXSERV 32
231 # define NI_MAXNUMERICHOST 64
233 #ifndef AI_NUMERICSERV
234 # define AI_NUMERICSERV 0
237 VLC_API
int vlc_getnameinfo( const struct sockaddr
*, int, char *, int, int *, int );
238 VLC_API
int vlc_getaddrinfo( vlc_object_t
*, const char *, int, const struct addrinfo
*, struct addrinfo
** );
242 net_SockAddrIsMulticast (const struct sockaddr
*addr
, socklen_t len
)
244 switch (addr
->sa_family
)
249 const struct sockaddr_in
*v4
= (const struct sockaddr_in
*)addr
;
250 if ((size_t)len
< sizeof (*v4
))
252 return IN_MULTICAST (ntohl (v4
->sin_addr
.s_addr
)) != 0;
256 #ifdef IN6_IS_ADDR_MULTICAST
259 const struct sockaddr_in6
*v6
= (const struct sockaddr_in6
*)addr
;
260 if ((size_t)len
< sizeof (*v6
))
262 return IN6_IS_ADDR_MULTICAST (&v6
->sin6_addr
) != 0;
271 static inline int net_GetSockAddress( int fd
, char *address
, int *port
)
273 struct sockaddr_storage addr
;
274 socklen_t addrlen
= sizeof( addr
);
276 return getsockname( fd
, (struct sockaddr
*)&addr
, &addrlen
)
277 || vlc_getnameinfo( (struct sockaddr
*)&addr
, addrlen
, address
,
278 NI_MAXNUMERICHOST
, port
, NI_NUMERICHOST
)
282 static inline int net_GetPeerAddress( int fd
, char *address
, int *port
)
284 struct sockaddr_storage addr
;
285 socklen_t addrlen
= sizeof( addr
);
287 return getpeername( fd
, (struct sockaddr
*)&addr
, &addrlen
)
288 || vlc_getnameinfo( (struct sockaddr
*)&addr
, addrlen
, address
,
289 NI_MAXNUMERICHOST
, port
, NI_NUMERICHOST
)
293 static inline uint16_t net_GetPort (const struct sockaddr
*addr
)
295 switch (addr
->sa_family
)
299 return ((const struct sockaddr_in6
*)addr
)->sin6_port
;
302 return ((const struct sockaddr_in
*)addr
)->sin_port
;
307 static inline void net_SetPort (struct sockaddr
*addr
, uint16_t port
)
309 switch (addr
->sa_family
)
313 ((struct sockaddr_in6
*)addr
)->sin6_port
= port
;
317 ((struct sockaddr_in
*)addr
)->sin_port
= port
;