/*****************************************************************************
* announce.c : Session announcement
*****************************************************************************
- * Copyright (C) 2002 VideoLAN
+ * Copyright (C) 2002 VideoLAN (Centrale Réseaux) and its contributors
*
* Authors: Clément Stenac <zorglub@via.ecp.fr>
* Damien Lucas <nitrox@via.ecp.fr>
#include "announce.h"
#include "network.h"
-#define SAP_IPV4_ADDR "224.2.127.254" /* Standard port and address for SAP */
-#define SAP_PORT 9875
-
-#define SAP_IPV6_ADDR_1 "FF0"
-#define SAP_IPV6_ADDR_2 "::2:7FFE"
-
#define DEFAULT_PORT 1234
-
-/*****************************************************************************
- * SDPGenerateUDP: create a SDP file
- *****************************************************************************/
-char * SDPGenerateUDP(char * psz_name_arg,char * psz_url_arg)
-{
- /* Create the SDP content */
- /* Do not add spaces at beginning of the lines ! */
-
- char * psz_sdp;
- vlc_url_t * p_url; /*where parsed url will be stored*/
-
-
- /*Allocate the URL structure*/
- p_url = (vlc_url_t *) malloc( sizeof( vlc_url_t) );
- if ( ! p_url )
- {
- return NULL;
- }
-
-
- vlc_UrlParse( p_url, psz_url_arg , 0);
-
- if (!p_url->psz_host)
- {
- return NULL;
- }
-
- if(p_url->i_port == 0)
- {
- p_url->i_port = DEFAULT_PORT;
- }
-
- psz_sdp = malloc( sizeof("v=0\n"
- "o=VideoLAN 3247692199 3247895918 IN IP4 VideoLAN\n"
- "s=\n"
- "u=VideoLAN\n"
- "t=0 0\n"
- "m=video udp 33\n"
- "c=IN IP4 /15\n"
- "a=type:test\n")
- + strlen(psz_name_arg)
- + 20 /*lengh of a 64 bits int"*/
- + strlen(p_url->psz_host)+1);
-
-
- if ( !psz_sdp )
- {
- return NULL;
- }
-
- sprintf( psz_sdp,"v=0\n"
- "o=VideoLAN 3247692199 3247895918 IN IP4 VideoLAN\n"
- "s=%s\n"
- "u=VideoLAN\n"
- "t=0 0\n"
- "m=video %i udp 33\n"
- "c=IN IP4 %s/15\n"
- "a=type:test\n",
- psz_name_arg, p_url->i_port, p_url->psz_host );
-
- vlc_UrlClean( p_url );
-
- if (p_url)
- {
- free(p_url);
- }
-
- p_url = NULL;
-
- return psz_sdp;
-}
-
-
-/*****************************************************************************
- * sout_SAPNew: Creates a SAP Session
- *****************************************************************************/
-sap_session_t * sout_SAPNew ( sout_instance_t *p_sout,
- char * psz_sdp_arg,
- int ip_version,
- char * psz_v6_scope )
-{
- sap_session_t *p_sap; /* The SAP structure */
- char *sap_ipv6_addr = NULL; /* IPv6 built address */
- vlc_value_t val;
-
- var_Create( p_sout, "ipv6", VLC_VAR_BOOL );
- var_Create( p_sout, "ipv4", VLC_VAR_BOOL );
-
- /* Allocate the SAP structure */
- p_sap = (sap_session_t *) malloc( sizeof ( sap_session_t ) ) ;
- if ( !p_sap )
- {
- msg_Err( p_sout, "out of memory" );
- return NULL;
- }
-
- p_sap->i_socket = 0;
-
- p_sap->psz_sdp=NULL;
-
- p_sap->i_ip_version = ip_version;
-
- p_sap->psz_sdp = psz_sdp_arg;
-
- if( ip_version != 6 )
- {
- val.b_bool = VLC_FALSE;
- var_Set( p_sout, "ipv6", val);
- val.b_bool = VLC_TRUE;
- var_Set( p_sout, "ipv4", val);
- p_sap->i_socket = net_OpenUDP(p_sout, "", 0, SAP_IPV4_ADDR, SAP_PORT );
- }
- else
- {
- val.b_bool = VLC_TRUE;
- var_Set( p_sout, "ipv6", val);
- val.b_bool = VLC_FALSE;
- var_Set( p_sout, "ipv4", val);
-
- sap_ipv6_addr = (char *) malloc( 28 * sizeof(char) );
- if ( !sap_ipv6_addr )
- {
- msg_Err( p_sout, "out of memory" );
- return NULL;
- }
- sprintf( sap_ipv6_addr, "%s%c%s",
- SAP_IPV6_ADDR_1, psz_v6_scope[0], SAP_IPV6_ADDR_2 );
-
- p_sap->i_socket = net_OpenUDP(p_sout, "", 0, sap_ipv6_addr, SAP_PORT );
-
- if( sap_ipv6_addr )
- {
- free( sap_ipv6_addr );
- }
- }
-
- if((int)p_sap->i_socket <= 0)
- {
- msg_Warn(p_sout, "invalid SAP socket");
- return NULL;
- }
-
- /* Free what we allocated */
-
- msg_Dbg( p_sout, "SAP initialization complete" );
-
- return p_sap;
-}
-
-/*****************************************************************************
- * sout_SAPDelete: Deletes a SAP Session
- *****************************************************************************/
-void sout_SAPDelete( sout_instance_t *p_sout, sap_session_t * p_sap )
-{
- int i_ret;
-
-#if defined( UNDER_CE )
- i_ret = CloseHandle( (HANDLE)p_sap->i_socket );
-#elif defined( WIN32 )
- i_ret = closesocket( p_sap->i_socket );
-#else
- i_ret = close( p_sap->i_socket );
-#endif
-
- if( i_ret )
- {
- msg_Err( p_sout, "unable to close SAP socket" );
- }
-
- if (p_sap->psz_sdp)
- {
- free(p_sap->psz_sdp);
- p_sap->psz_sdp = NULL;
- }
-
- free( p_sap );
-}
-
-/*****************************************************************************
- * sout_SAPSend: Sends a SAP packet
- *****************************************************************************/
-void sout_SAPSend( sout_instance_t *p_sout, sap_session_t * p_sap )
-{
- char *psz_msg; /* SDP content */
- char *psz_head; /* SAP header */
- char *psz_send; /* What we send */
- char *psz_type = "application/sdp";
- int i_header_size; /* SAP header size */
- int i_msg_size; /* SDP content size */
- int i_size; /* Total size */
- int i_ret = 0;
-
- /* We send a packet every 24 calls to the function */
- if( p_sap->i_calls++ < 24 )
- {
- return;
- }
-
- i_header_size = 8 + strlen( psz_type ) + 1;
- psz_head = (char *) malloc( i_header_size * sizeof( char ) );
-
- if( ! psz_head )
- {
- msg_Err( p_sout, "out of memory" );
- return;
- }
-
- /* Create the SAP headers */
- psz_head[0] = 0x20; /* Means IPv4, not encrypted, not compressed */
- psz_head[1] = 0x00; /* No authentification */
- psz_head[2] = 0x42; /* Version */
- psz_head[3] = 0x12; /* Version */
-
- psz_head[4] = 0x01; /* Source IP FIXME: we should get the real address */
- psz_head[5] = 0x02; /* idem */
- psz_head[6] = 0x03; /* idem */
- psz_head[7] = 0x04; /* idem */
-
- strncpy( psz_head + 8, psz_type, 15 );
- psz_head[ i_header_size-1 ] = '\0';
-
- psz_msg = p_sap->psz_sdp;
-
- if(!psz_msg)
- {
- msg_Err( p_sout, "no sdp packet" );
- return;
- }
-
- i_msg_size = strlen( psz_msg );
- i_size = i_msg_size + i_header_size;
-
- /* Create the message */
- psz_send = (char *) malloc( i_size*sizeof(char) );
- if( !psz_send )
- {
- msg_Err( p_sout, "out of memory" );
- return;
- }
-
- memcpy( psz_send, psz_head, i_header_size );
- memcpy( psz_send + i_header_size, psz_msg, i_msg_size );
-
- if( i_size < 1024 ) /* We mustn't send packets larger than 1024B */
- {
- i_ret = net_Write(p_sout, p_sap->i_socket, psz_send, i_size );
- }
-
- if( i_ret <= 0 )
- {
- msg_Warn( p_sout, "SAP send failed on socket %i (%s)",
- p_sap->i_socket, strerror(errno) );
- }
-
- p_sap->i_calls = 0;
-
- /* Free what we allocated */
- free( psz_send );
- free( psz_head );
-}
-
#ifdef HAVE_SLP_H
/*****************************************************************************
* sout_SLPBuildName: Builds a service name according to SLP standard
projects / vlc / blobdiff