1 /*****************************************************************************
2 * sap.c : SAP interface module
3 *****************************************************************************
4 * Copyright (C) 2001 VideoLAN
5 * $Id: sap.c,v 1.54 2004/03/03 20:39:52 gbazin Exp $
7 * Authors: Arnaud Schauly <gitan@via.ecp.fr>
8 * Clément Stenac <zorglub@via.ecp.fr>
9 * Damien Lucas <nitrox@videolan.org>
10 * Laurent Aimar <fenrir@via.ecp.fr>
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., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
25 *****************************************************************************/
27 /*****************************************************************************
29 *****************************************************************************/
30 #include <stdlib.h> /* malloc(), free() */
35 #include <errno.h> /* ENOMEM */
41 #ifdef HAVE_SYS_TIME_H
42 # include <sys/time.h>
46 # include <winsock2.h>
47 # include <ws2tcpip.h>
49 # define IN_MULTICAST(a) IN_CLASSD(a)
52 # include <sys/socket.h>
53 # include <netinet/in.h>
55 # include <arpa/inet.h>
56 # elif defined( SYS_BEOS )
57 # include <net/netdb.h>
62 # define close(a) CloseHandle(a)
63 #elif defined( WIN32 )
64 # define close(a) closesocket(a)
73 #define MAX_LINE_LENGTH 256
75 /* SAP is always on that port */
76 #define HELLO_PORT 9875
77 #define HELLO_GROUP "224.2.127.254"
80 #define IPV6_ADDR_1 "FF0" /* Scope is inserted between them */
81 #define IPV6_ADDR_2 "::2:7FFE"
84 /*****************************************************************************
86 *****************************************************************************/
87 #define SAP_ADDR_TEXT N_("SAP multicast address")
88 #define SAP_ADDR_LONGTEXT N_("SAP multicast address")
89 #define SAP_IPV4_TEXT N_("IPv4-SAP listening")
90 #define SAP_IPV4_LONGTEXT N_( \
91 "Set this if you want the SAP module to listen to IPv4 announces")
92 #define SAP_IPV6_TEXT N_( "IPv6-SAP listening")
93 #define SAP_IPV6_LONGTEXT N_(\
94 "Set this if you want the SAP module to listen to IPv6 announces")
95 #define SAP_SCOPE_TEXT N_("IPv6 SAP scope")
96 #define SAP_SCOPE_LONGTEXT N_( \
97 "Sets the scope for IPv6 announces (default is 8)")
98 #define SAP_TIMEOUT_TEXT N_("SAP timeout (seconds)")
99 #define SAP_TIMEOUT_LONGTEXT N_( \
100 "Sets the time before SAP items get deleted if no new announce" \
103 static int Open ( vlc_object_t * );
104 static void Close( vlc_object_t * );
107 set_description( _("SAP interface") );
109 add_string( "sap-addr", NULL, NULL,
110 SAP_ADDR_TEXT, SAP_ADDR_LONGTEXT, VLC_TRUE );
111 add_bool( "sap-ipv4", 1 , NULL,
112 SAP_IPV4_TEXT,SAP_IPV4_LONGTEXT, VLC_TRUE);
113 add_bool( "sap-ipv6", 0 , NULL,
114 SAP_IPV6_TEXT, SAP_IPV6_LONGTEXT, VLC_TRUE);
115 add_string( "sap-ipv6-scope", "8" , NULL,
116 SAP_SCOPE_TEXT, SAP_SCOPE_LONGTEXT, VLC_TRUE);
117 add_integer( "sap-timeout", 1800, NULL,
118 SAP_TIMEOUT_TEXT, SAP_TIMEOUT_LONGTEXT, VLC_TRUE);
120 set_capability( "interface", 0 );
121 set_callbacks( Open, Close );
124 /*****************************************************************************
126 *****************************************************************************/
128 static void Run ( intf_thread_t *p_intf );
129 static ssize_t NetRead( intf_thread_t *, int fd[2], uint8_t *, int );
131 typedef struct media_descr_t media_descr_t;
132 typedef struct sess_descr_t sess_descr_t;
133 typedef struct attr_descr_t attr_descr_t;
135 static void sess_toitem( intf_thread_t *, sess_descr_t * );
137 static sess_descr_t * parse_sdp( intf_thread_t *, char * ) ;
138 static void free_sd( sess_descr_t * );
140 /* Detect multicast addresses */
141 static int ismult( char * );
143 /* The struct that contains sdp informations */
147 char *psz_sessionname;
148 char *psz_connection;
152 media_descr_t **pp_media;
154 attr_descr_t **pp_attributes;
157 /* All this informations are not useful yet. */
161 char *psz_mediaconnection;
170 struct sap_announce_t
186 /* Table of announces */
188 struct sap_announce_t **pp_announces;
194 int do_decompress(unsigned char *src, unsigned char **_dst, int slen) {
195 int result, dstsize, n;
199 d_stream.zalloc = (alloc_func)0;
200 d_stream.zfree = (free_func)0;
201 d_stream.opaque = (voidpf)0;
202 result = inflateInit(&d_stream);
203 if (result != Z_OK) {
204 printf("inflateInit() failed. Result: %d\n", result);
208 d_stream.next_in = (Bytef *)src;
209 d_stream.avail_in = slen;
214 dst = (unsigned char *)realloc(dst, n * 1000);
215 d_stream.next_out = (Bytef *)&dst[(n - 1) * 1000];
216 d_stream.avail_out = 1000;
217 result = inflate(&d_stream, Z_NO_FLUSH);
218 if ((result != Z_OK) && (result != Z_STREAM_END)) {
219 printf("Zlib decompression failed. Result: %d\n", result);
222 } while ((d_stream.avail_out == 0) && (d_stream.avail_in != 0) &&
223 (result != Z_STREAM_END));
225 dstsize = d_stream.total_out;
226 inflateEnd(&d_stream);
228 *_dst = (unsigned char *)realloc(dst, dstsize);
234 /*****************************************************************************
235 * Open: initialize and create stuff
236 *****************************************************************************/
237 static int Open( vlc_object_t *p_this )
239 intf_thread_t *p_intf = (intf_thread_t*)p_this;
240 intf_sys_t *p_sys = malloc( sizeof( intf_sys_t ) );
242 playlist_t *p_playlist;
244 p_sys->i_timeout = config_GetInt(p_intf,"sap-timeout");
247 if( config_GetInt( p_intf, "sap-ipv4" ) )
249 char *psz_address = config_GetPsz( p_intf, "sap-addr" );
250 network_socket_t sock;
252 if( psz_address == NULL || *psz_address == '\0' )
254 psz_address = strdup( HELLO_GROUP );
257 /* Prepare the network_socket_t structure */
258 sock.i_type = NETWORK_UDP;
259 sock.psz_bind_addr = psz_address;
260 sock.i_bind_port = HELLO_PORT;
261 sock.psz_server_addr = "";
262 sock.i_server_port = 0;
264 p_intf->p_private = (void*) &sock;
266 p_network = module_Need( p_intf, "network", "ipv4", VLC_TRUE );
269 p_sys->fd[0] = sock.i_handle;
270 module_Unneed( p_intf, p_network );
274 msg_Warn( p_intf, "failed to open %s:%d", psz_address, HELLO_PORT );
279 if( config_GetInt( p_intf, "sap-ipv6" ) )
281 char psz_address[100];
282 char *psz_scope = config_GetPsz( p_intf, "sap-ipv6-scope" );
283 network_socket_t sock;
286 if( psz_scope == NULL || *psz_scope == '\0' )
288 psz_scope = strdup( "8" );
290 snprintf( psz_address, 100, "[%s%c%s]",IPV6_ADDR_1,
291 psz_scope[0], IPV6_ADDR_2 );
294 sock.i_type = NETWORK_UDP;
295 sock.psz_bind_addr = psz_address;
296 sock.i_bind_port = HELLO_PORT;
297 sock.psz_server_addr = "";
298 sock.i_server_port = 0;
300 p_intf->p_private = (void*) &sock;
302 p_network = module_Need( p_intf, "network", "ipv6", VLC_TRUE );
305 p_sys->fd[1] = sock.i_handle;
306 module_Unneed( p_intf, p_network );
310 msg_Warn( p_intf, "failed to open %s:%d", psz_address, HELLO_PORT );
313 if( p_sys->fd[0] <= 0 && p_sys->fd[1] <= 0 )
315 msg_Warn( p_intf, "IPV4 and IPV6 failed" );
320 /* Create our playlist group */
321 p_playlist = (playlist_t *)vlc_object_find( p_intf, VLC_OBJECT_PLAYLIST,
325 playlist_group_t *p_group = playlist_CreateGroup( p_playlist , "SAP" );
326 p_sys->i_group = p_group->i_id;
327 vlc_object_release( p_playlist );
330 p_sys->i_announces = 0;
331 p_sys->pp_announces = NULL;
333 p_intf->pf_run = Run;
334 p_intf->p_sys = p_sys;
339 /*****************************************************************************
341 *****************************************************************************/
342 static void Close( vlc_object_t *p_this )
344 intf_thread_t *p_intf = (intf_thread_t*)p_this;
345 intf_sys_t *p_sys = p_intf->p_sys;
348 if( p_sys->fd[0] > 0 )
350 close( p_sys->fd[0] );
352 if( p_sys->fd[1] > 0 )
354 close( p_sys->fd[1] );
357 for( i = 0 ; i< p_sys->i_announces ; i++ )
359 if( p_sys->pp_announces[i]->psz_name )
360 free( p_sys->pp_announces[i]->psz_name );
361 if( p_sys->pp_announces[i]->psz_uri )
362 free( p_sys->pp_announces[i]->psz_uri );
363 free( p_sys->pp_announces[i] );
365 free( p_sys->pp_announces );
370 /*****************************************************************************
372 *****************************************************************************
373 * Listens to SAP packets, and sends them to packet_handle
374 *****************************************************************************/
375 #define MAX_SAP_BUFFER 5000
377 static void Run( intf_thread_t *p_intf )
379 intf_sys_t *p_sys = p_intf->p_sys;
380 uint8_t buffer[MAX_SAP_BUFFER + 1];
383 /* read SAP packets */
384 while( !p_intf->b_die )
386 playlist_t *p_playlist= NULL;
388 int i_read = NetRead( p_intf, p_sys->fd, buffer, MAX_SAP_BUFFER );
396 unsigned char *p_decompressed_buffer;
397 int i_decompressed_size;
399 /* Check for items that need deletion */
400 for( i = 0 ; i< p_intf->p_sys->i_announces ; i++ )
402 struct sap_announce_t *p_announce;
403 mtime_t i_timeout = (mtime_t)1000000*p_sys->i_timeout;
404 if( mdate() - p_intf->p_sys->pp_announces[i]->i_last > i_timeout )
406 msg_Dbg(p_intf,"Time out for %s, deleting (%i/%i)",
407 p_intf->p_sys->pp_announces[i]->psz_name,
408 i , p_intf->p_sys->i_announces );
410 /* Remove the playlist item */
411 p_playlist = vlc_object_find( p_intf, VLC_OBJECT_PLAYLIST,
415 int i_pos = playlist_GetPositionById( p_playlist,
416 p_intf->p_sys->pp_announces[i]->i_id );
417 playlist_Delete( p_playlist, i_pos );
420 vlc_object_release( p_playlist );
422 /* Free the p_announce */
423 p_announce = p_intf->p_sys->pp_announces[i];
424 if( p_announce->psz_name )
425 free( p_announce->psz_name );
426 if( p_announce->psz_uri )
427 free( p_announce->psz_uri );
429 /* Remove the sap_announce from the array */
430 REMOVE_ELEM( p_intf->p_sys->pp_announces,
431 p_intf->p_sys->i_announces,
439 /* Minimum length is > 6 */
444 msg_Warn( p_intf, "Cannot read in the socket" );
449 buffer[i_read] = '\0';
450 p_end = &buffer[i_read];
452 /* Parse the SAP header */
453 i_version = buffer[0] >> 5;
456 msg_Warn( p_intf, "strange sap version %d found", i_version );
458 i_address_type = buffer[0] & 0x10;
459 b_reserved = buffer[0] & 0x08;
460 if( b_reserved != 0 )
462 msg_Warn( p_intf, "reserved bit incorrectly set" );
464 b_message_type = buffer[0] & 0x04;
465 if( b_message_type != 0 )
467 msg_Warn( p_intf, "got session deletion packet" );
469 b_encrypted = buffer[0] & 0x02;
472 msg_Warn( p_intf, "encrypted packet" );
474 b_compressed = buffer[0] & 0x01;
476 if( i_address_type == 0 ) /* ipv4 source address */
480 else /* ipv6 source address */
487 i_decompressed_size = do_decompress( p_sdp, &p_decompressed_buffer, i_read - ( p_sdp - buffer ) );
488 if( i_decompressed_size > 0 && i_decompressed_size < MAX_SAP_BUFFER )
490 memcpy( p_sdp, p_decompressed_buffer, i_decompressed_size );
491 p_sdp[i_decompressed_size] = '\0';
492 p_end = &p_sdp[i_decompressed_size];
493 free( p_decompressed_buffer );
496 msg_Warn( p_intf, "Ignoring compressed sap packet" );
499 p_sdp += buffer[1]; /* size of signature */
500 while( p_sdp < p_end - 1 && *p_sdp != '\0' && p_sdp[0] != 'v' && p_sdp[1] != '=' )
511 sess_descr_t *p_sd = parse_sdp( p_intf, p_sdp );
514 sess_toitem ( p_intf, p_sd );
520 msg_Warn( p_intf, "ditching sap packet" );
526 /**********************************************************************
528 *********************************************************************
529 * put into *ppsz_uri, the the uri in the cfield, psz_cfield.
530 *********************************************************************/
532 static void cfield_parse( char *psz_cfield, char **ppsz_uri )
538 psz_pos = psz_cfield;
540 while( *psz_pos != ' ' && *psz_pos !='\0' )
545 while( *psz_pos != ' ' && *psz_pos !='\0' )
551 while( *psz_pos != ' ' && *psz_pos !='/'
552 && *psz_pos != '\0' )
568 /**********************************************************************
570 *********************************************************************
571 * put into *ppsz_proto, and *ppsz_port, the protocol and the port.
572 *********************************************************************/
575 static void mfield_parse( char *psz_mfield, char **ppsz_proto,
582 psz_pos = psz_mfield;
583 psz_media = psz_mfield;
584 while( *psz_pos != '\0' && *psz_pos != ' ' )
588 if( *psz_pos != '\0' )
591 if( strcmp( psz_media, "video" ) && strcmp( psz_media, "audio" ) )
599 *ppsz_port = psz_pos;
600 while( *psz_pos != '\0' && *psz_pos !=' ' && *psz_pos!='/' )
604 if( *psz_pos == '/' ) // FIXME does not support multi-port
608 while( *psz_pos != '\0' && *psz_pos !=' ' )
615 *ppsz_proto = psz_pos;
616 while( *psz_pos!='\0' && *psz_pos !=' ' &&
619 *psz_pos = tolower( *psz_pos );
633 /*******************************************************************
634 * sess_toitem : changes a sess_descr_t into a hurd of
635 * playlist_item_t, which are enqueued.
636 *******************************************************************
637 * Note : does not support sessions that take place on consecutive
638 * port or adresses yet.
639 *******************************************************************/
641 static void sess_toitem( intf_thread_t * p_intf, sess_descr_t * p_sd )
643 struct sap_announce_t *p_announce;
644 char *psz_uri, *psz_proto, *psz_item_uri;
646 char *psz_uri_default;
647 int i_count , i , i_pos , i_id = 0;
648 vlc_bool_t b_http = VLC_FALSE;
649 char *psz_http_path = NULL;
650 playlist_t *p_playlist = NULL;
651 playlist_item_t *p_item;
653 psz_uri_default = NULL;
654 if( p_sd->i_media > 1 )
656 asprintf( &psz_uri, "sdp://%s", p_sd->psz_sdp );
657 /* Check if we have already added the item */
658 for( i = 0 ; i< p_intf->p_sys->i_announces ; i++ )
660 if( !strcmp(p_intf->p_sys->pp_announces[i]->psz_uri,
663 p_intf->p_sys->pp_announces[i]->i_last = mdate();
668 /* Add it to the playlist */
669 p_playlist = vlc_object_find( p_intf, VLC_OBJECT_PLAYLIST,
671 i_id = playlist_Add( p_playlist, psz_uri, p_sd->psz_sessionname ,
672 PLAYLIST_CHECK_INSERT, PLAYLIST_END );
675 playlist_item_t *p_item = playlist_ItemGetById( p_playlist, i_id );
676 playlist_ItemSetGroup( p_item, p_intf->p_sys->i_group );
680 p_announce = (struct sap_announce_t *)malloc(
681 sizeof(struct sap_announce_t) );
682 if( p_sd->psz_sessionname )
684 p_announce->psz_name = strdup( p_sd->psz_sessionname );
688 p_announce->psz_name = strdup( "" );
692 p_announce->psz_uri = strdup( psz_uri );
696 p_announce->psz_uri = strdup( "" );
698 p_announce->i_id = i_id;
699 p_announce->i_last = mdate();
701 INSERT_ELEM( p_intf->p_sys->pp_announces,
702 p_intf->p_sys->i_announces,
703 p_intf->p_sys->i_announces,
706 vlc_object_release( p_playlist );
711 cfield_parse( p_sd->psz_connection, &psz_uri_default );
713 for( i_count = 0 ; i_count < p_sd->i_media ; i_count++ )
715 int i_group = p_intf->p_sys->i_group;
717 /* Build what we have to put in psz_item_uri, with the m and
720 if( !p_sd->pp_media[i_count] )
725 mfield_parse( p_sd->pp_media[i_count]->psz_medianame,
726 & psz_proto, & psz_port );
728 if( !psz_proto || !psz_port )
733 if( p_sd->pp_media[i_count]->psz_mediaconnection )
735 cfield_parse( p_sd->pp_media[i_count]->psz_mediaconnection,
740 psz_uri = psz_uri_default;
743 if( psz_uri == NULL )
748 for( i = 0 ; i< p_sd->i_attributes ; i++ )
750 if(!strcasecmp( p_sd->pp_attributes[i]->psz_field , "type") &&
751 strstr( p_sd->pp_attributes[i]->psz_value, "http") )
755 if(!strcasecmp( p_sd->pp_attributes[i]->psz_field , "http-path"))
757 psz_http_path = strdup( p_sd->pp_attributes[i]->psz_value );
759 if(!strcasecmp( p_sd->pp_attributes[i]->psz_field , "plgroup"))
763 (playlist_t *)vlc_object_find( p_intf, VLC_OBJECT_PLAYLIST,
765 if( p_playlist == NULL )
770 i_group_id = playlist_GroupToId( p_playlist,
771 p_sd->pp_attributes[i]->psz_value);
772 if( i_group_id != 0 )
774 i_group = i_group_id;
778 playlist_group_t *p_group =
779 playlist_CreateGroup( p_playlist,
780 p_sd->pp_attributes[i]->psz_value);
781 i_group = p_group->i_id;
783 vlc_object_release( p_playlist );
787 /* Filling psz_uri */
788 if( b_http == VLC_FALSE )
790 psz_item_uri = malloc( strlen( psz_proto ) + strlen( psz_uri ) +
791 strlen( psz_port ) + 7 );
792 if( ismult( psz_uri ) )
794 sprintf( psz_item_uri, "%s://@%s:%s",
795 psz_proto, psz_uri, psz_port );
799 sprintf( psz_item_uri, "%s://%s:%s",
800 psz_proto, psz_uri, psz_port );
805 if( psz_http_path == NULL )
807 psz_http_path = strdup( "/" );
809 if( *psz_http_path == '/' )
811 asprintf( &psz_item_uri, "%s://%s:%s%s", psz_proto,
812 psz_uri, psz_port,psz_http_path );
816 asprintf( &psz_item_uri, "%s://%s:%s/%s", psz_proto, psz_uri,
817 psz_port, psz_http_path );
822 free( psz_http_path );
826 /* Check if we already know this item */
827 for( i = 0 ; i< p_intf->p_sys->i_announces ; i++ )
829 if( !strcmp( p_intf->p_sys->pp_announces[i]->psz_uri,
832 p_intf->p_sys->pp_announces[i]->i_last = mdate();
834 /* Check if the name changed */
835 if( strcmp( p_intf->p_sys->pp_announces[i]->psz_name,
836 p_sd->psz_sessionname ) )
838 playlist_item_t *p_item;
839 p_playlist = vlc_object_find( p_intf, VLC_OBJECT_PLAYLIST,
842 msg_Dbg(p_intf, "Name changed (%s -> %s) for %s",
843 p_intf->p_sys->pp_announces[i]->psz_name,
844 p_sd->psz_sessionname,
847 p_item = playlist_ItemGetById( p_playlist,
848 p_intf->p_sys->pp_announces[i]->i_id );
850 /* Change the name in the item */
851 if( p_item->psz_name )
852 free( p_item->psz_name );
853 p_item->psz_name = strdup( p_sd->psz_sessionname);
855 /* Update the stored name */
856 if( p_intf->p_sys->pp_announces[i]->psz_name )
857 free( p_intf->p_sys->pp_announces[i]->psz_name );
858 p_intf->p_sys->pp_announces[i]->psz_name =
859 strdup( p_sd->psz_sessionname );
861 vlc_object_release( p_playlist );
863 free( psz_item_uri );
868 /* Add the item in the playlist */
869 p_playlist = vlc_object_find( p_intf, VLC_OBJECT_PLAYLIST,
871 i_id = playlist_Add ( p_playlist, psz_item_uri ,
872 p_sd->psz_sessionname,
873 PLAYLIST_CHECK_INSERT, PLAYLIST_END );
874 p_item = playlist_ItemGetById( p_playlist, i_id );
877 vlc_mutex_lock( &p_item->lock );
878 playlist_ItemSetGroup( p_item, i_group );
879 vlc_mutex_unlock( &p_item->lock );
882 /* Then remember it */
883 p_announce = (struct sap_announce_t *)malloc(
884 sizeof(struct sap_announce_t) );
885 if( p_sd->psz_sessionname )
887 p_announce->psz_name = strdup( p_sd->psz_sessionname );
891 p_announce->psz_name = strdup( "" );
895 p_announce->psz_uri = strdup( psz_item_uri );
899 p_announce->psz_uri = strdup( "" );
901 p_announce->i_id = i_id;
903 p_announce->i_last = mdate();
905 vlc_object_release( p_playlist );
907 INSERT_ELEM( p_intf->p_sys->pp_announces,
908 p_intf->p_sys->i_announces,
909 p_intf->p_sys->i_announces,
911 free( psz_item_uri );
915 /***********************************************************************
916 * parse_sdp : SDP parsing
917 * *********************************************************************
918 * Make a sess_descr_t with a psz
919 ***********************************************************************/
921 static sess_descr_t * parse_sdp( intf_thread_t * p_intf, char *p_packet )
925 if( p_packet[0] != 'v' || p_packet[1] != '=' )
927 msg_Warn(p_intf, "bad SDP packet");
931 sd = malloc( sizeof( sess_descr_t ) );
932 sd->psz_sessionname = NULL;
933 sd->psz_connection = NULL;
934 sd->psz_sdp = strdup( p_packet );
938 sd->i_attributes = 0;
939 sd->pp_attributes = NULL;
941 while( *p_packet != '\0' )
945 /* Search begin of field */
946 while( *p_packet == '\n' || *p_packet == ' ' || *p_packet == '\t' )
950 /* search end of line */
951 if( ( psz_end = strchr( p_packet, '\n' ) ) == NULL )
953 psz_end = p_packet + strlen( p_packet );
955 if( psz_end > p_packet && *(psz_end - 1 ) == '\r' )
960 if( psz_end <= p_packet )
966 if( p_packet[1] != '=' )
968 msg_Warn( p_intf, "packet invalid" );
973 switch( p_packet[0] )
976 sd->i_version = atoi( &p_packet[2] );
979 sd->psz_sessionname = strdup( &p_packet[2] );
991 char *psz_eof = strchr( &p_packet[2], ':' );
993 if( psz_eof && psz_eof[1] != '\0' )
995 attr_descr_t *attr = malloc( sizeof( attr_descr_t ) );
999 attr->psz_field = strdup( &p_packet[2] );
1000 attr->psz_value = strdup( psz_eof );
1002 TAB_APPEND( sd->i_attributes, sd->pp_attributes, attr );
1009 media_descr_t *media = malloc( sizeof( media_descr_t ) );
1011 media->psz_medianame = strdup( &p_packet[2] );
1012 media->psz_mediaconnection = NULL;
1014 TAB_APPEND( sd->i_media, sd->pp_media, media );
1019 if( sd->i_media <= 0 )
1021 sd->psz_connection = strdup( &p_packet[2] );
1025 sd->pp_media[sd->i_media-1]->psz_mediaconnection = strdup( &p_packet[2] );
1040 if( p ) { free( p ); (p) = NULL; }
1041 static void free_sd( sess_descr_t * p_sd )
1045 FREE( p_sd->psz_sessionname );
1046 FREE( p_sd->psz_connection );
1047 FREE( p_sd->psz_sdp );
1049 for( i = 0; i < p_sd->i_media ; i++ )
1051 FREE( p_sd->pp_media[i]->psz_medianame );
1052 FREE( p_sd->pp_media[i]->psz_mediaconnection );
1053 FREE( p_sd->pp_media[i] );
1055 for( i = 0; i < p_sd->i_attributes ; i++ )
1057 FREE( p_sd->pp_attributes[i]->psz_field );
1058 FREE( p_sd->pp_attributes[i]->psz_value );
1059 FREE( p_sd->pp_attributes[i] );
1061 FREE( p_sd->pp_attributes );
1062 FREE( p_sd->pp_media );
1067 /***********************************************************************
1068 * ismult: returns true if we have a multicast address
1069 ***********************************************************************/
1071 static int ismult( char *psz_uri )
1076 i_value = strtol( psz_uri, &psz_end, 0 );
1079 if( psz_uri[0] == '[')
1081 if( strncasecmp( &psz_uri[1], "FF0" , 3) ||
1082 strncasecmp( &psz_uri[2], "FF0" , 3))
1085 return( VLC_FALSE );
1088 if( *psz_end != '.' ) { return( VLC_FALSE ); }
1090 return( i_value < 224 ? VLC_FALSE : VLC_TRUE );
1095 /*****************************************************************************
1096 * Read: read on a file descriptor, checking b_die periodically
1097 *****************************************************************************
1099 *****************************************************************************/
1100 static ssize_t NetRead( intf_thread_t *p_intf,
1101 int fd[2], uint8_t *p_buffer, int i_len )
1106 struct timeval timeout;
1109 int i_handle_max = __MAX( fd[0], fd[1] );
1111 /* Initialize file descriptor set */
1113 if( fd[0] > 0 ) FD_SET( fd[0], &fds );
1114 if( fd[1] > 0 ) FD_SET( fd[1], &fds );
1116 /* We'll wait 0.5 second if nothing happens */
1118 timeout.tv_usec = 500000;
1120 /* Find if some data is available */
1121 i_ret = select( i_handle_max + 1, &fds, NULL, NULL, &timeout );
1123 if( i_ret == -1 && errno != EINTR )
1125 msg_Err( p_intf, "network select error (%s)", strerror(errno) );
1127 else if( i_ret > 0 )
1129 if( fd[0] > 0 && FD_ISSET( fd[0], &fds ) )
1131 return recv( fd[0], p_buffer, i_len, 0 );
1133 else if( fd[1] > 0 && FD_ISSET( fd[1], &fds ) )
1135 return recv( fd[1], p_buffer, i_len, 0 );