1 /*****************************************************************************
2 * udp.c: raw UDP access plug-in
3 *****************************************************************************
4 * Copyright (C) 2001, 2002 VideoLAN
5 * $Id: udp.c,v 1.11 2002/06/01 12:31:58 sam Exp $
7 * Authors: Christophe Massiot <massiot@via.ecp.fr>
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
22 *****************************************************************************/
24 /*****************************************************************************
26 *****************************************************************************/
28 #include <sys/types.h>
35 #include <vlc/input.h>
39 #elif defined( _MSC_VER ) && defined( _WIN32 )
45 /*****************************************************************************
47 *****************************************************************************/
48 static void input_getfunctions( function_list_t * );
49 static int UDPOpen ( input_thread_t * );
51 /*****************************************************************************
52 * Build configuration tree.
53 *****************************************************************************/
58 SET_DESCRIPTION( _("Raw UDP access plug-in") )
59 ADD_CAPABILITY( ACCESS, 0 )
60 ADD_SHORTCUT( "udpstream" )
61 ADD_SHORTCUT( "udp4" )
62 ADD_SHORTCUT( "udp6" )
66 input_getfunctions( &p_module->p_functions->access );
69 MODULE_DEACTIVATE_START
70 MODULE_DEACTIVATE_STOP
72 /*****************************************************************************
73 * Functions exported as capabilities. They are declared as static so that
74 * we don't pollute the namespace too much.
75 *****************************************************************************/
76 static void input_getfunctions( function_list_t * p_function_list )
78 #define input p_function_list->functions.access
79 input.pf_open = UDPOpen;
80 input.pf_read = input_FDNetworkRead;
81 input.pf_close = input_FDNetworkClose;
82 input.pf_set_program = input_SetProgram;
83 input.pf_set_area = NULL;
88 /*****************************************************************************
89 * UDPOpen: open the socket
90 *****************************************************************************/
91 static int UDPOpen( input_thread_t * p_input )
93 input_socket_t * p_access_data;
95 char * psz_network = "";
96 char * psz_name = strdup(p_input->psz_name);
97 char * psz_parser = psz_name;
98 char * psz_server_addr = "";
99 char * psz_server_port = "";
100 char * psz_bind_addr = "";
101 char * psz_bind_port = "";
102 int i_bind_port = 0, i_server_port = 0;
103 network_socket_t socket_desc;
105 if( config_GetInt( p_input, "ipv4" ) )
107 psz_network = "ipv4";
109 if( config_GetInt( p_input, "ipv6" ) )
111 psz_network = "ipv6";
114 if( *p_input->psz_access )
116 /* Find out which shortcut was used */
117 if( !strncmp( p_input->psz_access, "udp6", 5 ) )
119 psz_network = "ipv6";
121 else if( !strncmp( p_input->psz_access, "udp4", 5 ) )
123 psz_network = "ipv4";
127 /* Parse psz_name syntax :
128 * [serveraddr[:serverport]][@[bindaddr]:[bindport]] */
130 if( *psz_parser && *psz_parser != '@' )
133 psz_server_addr = psz_parser;
135 while( *psz_parser && *psz_parser != ':' && *psz_parser != '@' )
137 if( *psz_parser == '[' )
140 while( *psz_parser && *psz_parser != ']' )
148 if( *psz_parser == ':' )
150 /* Found server port */
151 *psz_parser = '\0'; /* Terminate server name */
153 psz_server_port = psz_parser;
155 while( *psz_parser && *psz_parser != '@' )
162 if( *psz_parser == '@' )
164 /* Found bind address or bind port */
165 *psz_parser = '\0'; /* Terminate server port or name if necessary */
168 if( *psz_parser && *psz_parser != ':' )
170 /* Found bind address */
171 psz_bind_addr = psz_parser;
173 while( *psz_parser && *psz_parser != ':' )
175 if( *psz_parser == '[' )
178 while( *psz_parser && *psz_parser != ']' )
187 if( *psz_parser == ':' )
189 /* Found bind port */
190 *psz_parser = '\0'; /* Terminate bind address if necessary */
193 psz_bind_port = psz_parser;
197 /* Convert ports format */
198 if( *psz_server_port )
200 i_server_port = strtol( psz_server_port, &psz_parser, 10 );
203 msg_Err( p_input, "cannot parse server port near %s", psz_parser );
211 i_bind_port = strtol( psz_bind_port, &psz_parser, 10 );
214 msg_Err( p_input, "cannot parse bind port near %s", psz_parser );
220 vlc_mutex_lock( &p_input->stream.stream_lock );
221 p_input->stream.b_pace_control = 0;
222 p_input->stream.b_seekable = 0;
223 p_input->stream.p_selected_area->i_tell = 0;
224 p_input->stream.i_method = INPUT_METHOD_NETWORK;
225 vlc_mutex_unlock( &p_input->stream.stream_lock );
227 if( *psz_server_addr || i_server_port )
229 msg_Err( p_input, "this UDP syntax is deprecated; the server argument will be");
230 msg_Err( p_input, "ignored (%s:%d). If you wanted to enter a multicast address",
231 psz_server_addr, i_server_port);
232 msg_Err( p_input, "or local port, type : %s:@%s:%d",
233 *p_input->psz_access ? p_input->psz_access : "udp",
234 psz_server_addr, i_server_port );
237 psz_server_addr = "";
240 msg_Dbg( p_input, "opening server=%s:%d local=%s:%d",
241 psz_server_addr, i_server_port, psz_bind_addr, i_bind_port );
243 /* Prepare the network_socket_t structure */
244 socket_desc.i_type = NETWORK_UDP;
245 socket_desc.psz_bind_addr = psz_bind_addr;
246 socket_desc.i_bind_port = i_bind_port;
247 socket_desc.psz_server_addr = psz_server_addr;
248 socket_desc.i_server_port = i_server_port;
250 /* Find an appropriate network module */
251 p_network = module_Need( p_input, MODULE_CAPABILITY_NETWORK,
252 psz_network, &socket_desc );
254 if( p_network == NULL )
258 module_Unneed( p_network );
260 p_access_data = p_input->p_access_data = malloc( sizeof(input_socket_t) );
261 if( p_access_data == NULL )
263 msg_Err( p_input, "out of memory" );
267 p_access_data->i_handle = socket_desc.i_handle;
268 p_input->i_mtu = socket_desc.i_mtu;