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Commit 217c4d94 authored by Laurent Aimar's avatar Laurent Aimar
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* mmsh: a little clean, and fixed 1/2 potential segfaults.

parent 44c97ef0
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modules/access/mms/mmsh.c
View file @ 217c4d94
......@@ -2,7 +2,7 @@
* mmsh.c:
*****************************************************************************
* Copyright (C) 2001, 2002 VideoLAN
* $Id: mmsh.c,v 1.5 2003/08/17 23:02:51 fenrir Exp $
* $Id: mmsh.c,v 1.6 2003/08/26 00:51:19 fenrir Exp $
*
* Authors: Laurent Aimar <fenrir@via.ecp.fr>
*
......@@ -31,7 +31,6 @@
* Preamble
*****************************************************************************/
#include <stdlib.h>
#include <string.h>
#include <vlc/vlc.h>
#include <vlc/input.h>
......@@ -100,7 +99,7 @@ int E_( MMSHOpen ) ( input_thread_t *p_input )
chunk_t ck;
/* init p_sys */
p_sys = malloc( sizeof( access_sys_t ) );
p_input->p_access_data = p_sys = malloc( sizeof( access_sys_t ) );
p_sys->i_proto = MMS_PROTO_HTTP;
p_sys->p_socket = NULL;
......@@ -113,6 +112,7 @@ int E_( MMSHOpen ) ( input_thread_t *p_input )
p_sys->i_packet_used = 0;
p_sys->i_packet_length = 0;
p_sys->i_pos = 0;
p_sys->i_request_context = 1;
E_( GenerateGuid )( &p_sys->guid );
/* open a tcp connection */
......@@ -128,23 +128,23 @@ int E_( MMSHOpen ) ( input_thread_t *p_input )
p_sys->p_url->i_port = 80;
}
p_sys->p_socket = NetOpenTCP( p_input, p_sys->p_url );
if( !p_sys->p_socket )
if( ( p_sys->p_socket = NetOpenTCP( p_input, p_sys->p_url ) ) == NULL )
{
msg_Err( p_input, "cannot connect" );
goto exit_error;
}
p_sys->i_request_context = 1;
/* *** send first request *** */
p = &p_sys->buffer[0];
p += sprintf( p, "GET %s HTTP/1.0\r\n", p_sys->p_url->psz_path );
p += sprintf( p,"Accept: */*\r\n" );
p += sprintf( p, "User-Agent: NSPlayer/4.1.0.3856\r\n" );
p += sprintf( p, "Host: %s:%d\r\n", p_sys->p_url->psz_host, p_sys->p_url->i_port );
p += sprintf( p, "Pragma: no-cache,rate=1.000000,stream-time=0,stream-offset=0:0,request-context=%d,max-duration=0\r\n", p_sys->i_request_context++ );
//p += sprintf( p, "Pragma: xClientGUID={c77e7400-738a-11d2-9add-0020af0a3278}\r\n" );
p += sprintf( p, "Pragma: xClientGUID={"GUID_FMT"}\r\n", GUID_PRINT( p_sys->guid ) );
p += sprintf( p, "Host: %s:%d\r\n",
p_sys->p_url->psz_host, p_sys->p_url->i_port );
p += sprintf( p, "Pragma: no-cache,rate=1.000000,stream-time=0,stream-offset=0:0,request-context=%d,max-duration=0\r\n",
p_sys->i_request_context++ );
p += sprintf( p, "Pragma: xClientGUID={"GUID_FMT"}\r\n",
GUID_PRINT( p_sys->guid ) );
p += sprintf( p, "Connection: Close\r\n\r\n" );
NetWrite( p_input, p_sys->p_socket, p_sys->buffer, p - p_sys->buffer );
......@@ -155,6 +155,7 @@ int E_( MMSHOpen ) ( input_thread_t *p_input )
goto exit_error;
}
NetClose( p_input, p_sys->p_socket );
p_sys->p_socket = NULL;
p_ans = http_answer_parse( p_sys->buffer, p_sys->i_buffer );
if( !p_ans )
......@@ -165,13 +166,15 @@ int E_( MMSHOpen ) ( input_thread_t *p_input )
if( p_ans->i_error >= 400 )
{
msg_Err( p_input, "error %d (server return=`%s')", p_ans->i_error, p_ans->psz_answer );
msg_Err( p_input, "error %d (server return=`%s')",
p_ans->i_error, p_ans->psz_answer );
http_answer_free( p_ans );
goto exit_error;
}
else if( p_ans->i_error >= 300 )
{
msg_Err( p_input, "FIXME redirec unsuported %d (server return=`%s')", p_ans->i_error, p_ans->psz_answer );
msg_Err( p_input, "FIXME redirect unsuported %d (server return=`%s')",
p_ans->i_error, p_ans->psz_answer );
http_answer_free( p_ans );
goto exit_error;
}
......@@ -183,8 +186,11 @@ int E_( MMSHOpen ) ( input_thread_t *p_input )
}
/* now get features */
/* FIXME FIXME test Content-Type to see if it's a plain stream or an asx FIXME */
for( p_field = p_ans->p_fields; p_field != NULL; p_field = http_field_find( p_field->p_next, "Pragma" ) )
/* FIXME FIXME test Content-Type to see if it's a plain stream or an
* asx FIXME */
for( p_field = p_ans->p_fields;
p_field != NULL;
p_field = http_field_find( p_field->p_next, "Pragma" ) )
{
if( !strncasecmp( p_field->psz_value, "features", 8 ) )
{
......@@ -200,7 +206,8 @@ int E_( MMSHOpen ) ( input_thread_t *p_input )
}
else
{
msg_Warn( p_input, "unknow stream types (%s)", p_field->psz_value );
msg_Warn( p_input, "unknow stream types (%s)",
p_field->psz_value );
p_sys->b_broadcast = VLC_FALSE;
}
}
......@@ -251,7 +258,9 @@ int E_( MMSHOpen ) ( input_thread_t *p_input )
* and bitrate mutual exclusion(optional) */
E_( asf_HeaderParse )( &p_sys->asfh,
p_sys->p_header, p_sys->i_header );
msg_Dbg( p_input, "packet count=%lld packet size=%d",p_sys->asfh.i_data_packets_count, p_sys->asfh.i_min_data_packet_size );
msg_Dbg( p_input, "packet count=%lld packet size=%d",
p_sys->asfh.i_data_packets_count,
p_sys->asfh.i_min_data_packet_size );
E_( asf_StreamSelect)( &p_sys->asfh,
config_GetInt( p_input, "mms-maxbitrate" ),
......@@ -259,7 +268,7 @@ int E_( MMSHOpen ) ( input_thread_t *p_input )
config_GetInt( p_input, "audio" ),
config_GetInt( p_input, "video" ) );
if( mmsh_start( p_input, p_sys, 0 ) )
if( mmsh_start( p_input, 0 ) )
{
msg_Err( p_input, "cannot start stream" );
goto exit_error;
......@@ -294,7 +303,6 @@ int E_( MMSHOpen ) ( input_thread_t *p_input )
/* Update default_pts to a suitable value for ftp access */
p_input->i_pts_delay = config_GetInt( p_input, "mms-caching" ) * 1000;
p_input->p_access_data = p_sys;
return( VLC_SUCCESS );
......@@ -318,20 +326,23 @@ void E_( MMSHClose ) ( input_thread_t *p_input )
msg_Dbg( p_input, "stopping stream" );
mmsh_stop( p_input, p_sys );
mmsh_stop( p_input );
free( p_sys );
}
static int mmsh_get_packet( input_thread_t * p_input, access_sys_t *p_sys, chunk_t *p_ck )
static int mmsh_get_packet( input_thread_t * p_input,
chunk_t *p_ck )
{
access_sys_t *p_sys = p_input->p_access_data;
int i_mov = p_sys->i_buffer - p_sys->i_buffer_pos;
if( p_sys->i_buffer_pos > BUFFER_SIZE / 2 )
{
if( i_mov > 0 )
{
memmove( &p_sys->buffer[0],
memmove( &p_sys->buffer[0],
&p_sys->buffer[p_sys->i_buffer_pos],
i_mov );
}
......@@ -346,7 +357,8 @@ static int mmsh_get_packet( input_thread_t * p_input, access_sys_t *p_sys, chunk
return VLC_EGENERIC;
}
chunk_parse( p_ck, &p_sys->buffer[p_sys->i_buffer_pos], p_sys->i_buffer - p_sys->i_buffer_pos );
chunk_parse( p_ck, &p_sys->buffer[p_sys->i_buffer_pos],
p_sys->i_buffer - p_sys->i_buffer_pos );
if( p_ck->i_type == 0x4524 ) // Transfer complete
{
......@@ -366,10 +378,12 @@ static int mmsh_get_packet( input_thread_t * p_input, access_sys_t *p_sys, chunk
msg_Warn( p_input, "cannot fill buffer" );
return VLC_EGENERIC;
}
chunk_parse( p_ck, &p_sys->buffer[p_sys->i_buffer_pos], p_sys->i_buffer - p_sys->i_buffer_pos );
chunk_parse( p_ck, &p_sys->buffer[p_sys->i_buffer_pos],
p_sys->i_buffer - p_sys->i_buffer_pos );
}
if( p_sys->i_packet_sequence != 0 && p_ck->i_sequence != p_sys->i_packet_sequence )
if( p_sys->i_packet_sequence != 0 &&
p_ck->i_sequence != p_sys->i_packet_sequence )
{
msg_Warn( p_input, "packet lost ?" );
}
......@@ -402,12 +416,12 @@ static void Seek( input_thread_t * p_input, off_t i_pos )
vlc_mutex_lock( &p_input->stream.stream_lock );
mmsh_stop( p_input, p_sys );
mmsh_start( p_input, p_sys, i_packet * p_sys->asfh.i_min_data_packet_size );
mmsh_stop( p_input );
mmsh_start( p_input, i_packet * p_sys->asfh.i_min_data_packet_size );
for( ;; )
{
if( mmsh_get_packet( p_input, p_sys, &ck ) )
if( mmsh_get_packet( p_input, &ck ) )
{
break;
}
......@@ -443,7 +457,8 @@ static ssize_t Read ( input_thread_t * p_input, byte_t * p_buffer,
{
if( p_sys->i_packet_used < p_sys->i_packet_length )
{
i_copy = __MIN( p_sys->i_packet_length - p_sys->i_packet_used, i_len - i_data );
i_copy = __MIN( p_sys->i_packet_length - p_sys->i_packet_used,
i_len - i_data );
memcpy( &p_buffer[i_data],
&p_sys->p_packet[p_sys->i_packet_used],
......@@ -455,7 +470,8 @@ static ssize_t Read ( input_thread_t * p_input, byte_t * p_buffer,
else if( p_sys->i_pos + i_data > p_sys->i_header &&
(int)p_sys->i_packet_used < p_sys->asfh.i_min_data_packet_size )
{
i_copy = __MIN( p_sys->asfh.i_min_data_packet_size - p_sys->i_packet_used, i_len - i_data );
i_copy = __MIN( p_sys->asfh.i_min_data_packet_size - p_sys->i_packet_used,
i_len - i_data );
memset( &p_buffer[i_data], 0, i_copy );
......@@ -467,21 +483,18 @@ static ssize_t Read ( input_thread_t * p_input, byte_t * p_buffer,
chunk_t ck;
/* get a new packet */
/* fill enought data (>12) */
msg_Dbg( p_input, "waiting data (buffer = %d bytes", p_sys->i_buffer );
msg_Dbg( p_input, "waiting data (buffer = %d bytes)",
p_sys->i_buffer );
if( mmsh_get_packet( p_input, p_sys, &ck ) )
if( mmsh_get_packet( p_input, &ck ) )
{
return 0;
}
//fprintf( stderr, "type=0x%x size=%d sequence=%d unknown=%d size2=%d data=%d\n",
// ck.i_type, ck.i_size, ck.i_sequence, ck.i_unknown, ck.i_size2, ck.i_data );
}
}
p_sys->i_pos += i_data;
return( i_data );
}
......@@ -492,8 +505,10 @@ static ssize_t Read ( input_thread_t * p_input, byte_t * p_buffer,
/****************************************************************************/
/****************************************************************************/
static int mmsh_start( input_thread_t *p_input, access_sys_t *p_sys, off_t i_pos )
static int mmsh_start( input_thread_t *p_input,
off_t i_pos )
{
access_sys_t *p_sys = p_input->p_access_data;
uint8_t *p;
int i_streams = 0;
int i;
......@@ -501,7 +516,12 @@ static int mmsh_start( input_thread_t *p_input, access_sys_t *p_sys, off_t i_pos
msg_Dbg( p_input, "starting stream" );
p_sys->p_socket = NetOpenTCP( p_input, p_sys->p_url );
if( ( p_sys->p_socket = NetOpenTCP( p_input, p_sys->p_url ) ) == NULL )
{
/* should not occur */
msg_Err( p_input, "cannot connect to the server" );
return VLC_EGENERIC;
}
for( i = 1; i < 128; i++ )
{
......@@ -521,19 +541,23 @@ static int mmsh_start( input_thread_t *p_input, access_sys_t *p_sys, off_t i_pos
p += sprintf( p, "GET %s HTTP/1.0\r\n", p_sys->p_url->psz_path );
p += sprintf( p,"Accept: */*\r\n" );
p += sprintf( p, "User-Agent: NSPlayer/4.1.0.3856\r\n" );
p += sprintf( p, "Host: %s:%d\r\n", p_sys->p_url->psz_host, p_sys->p_url->i_port );
p += sprintf( p, "Host: %s:%d\r\n",
p_sys->p_url->psz_host, p_sys->p_url->i_port );
if( p_sys->b_broadcast )
{
p += sprintf( p, "Pragma: no-cache,rate=1.000000,request-context=%d\r\n", p_sys->i_request_context++ );
p += sprintf( p,"Pragma: no-cache,rate=1.000000,request-context=%d\r\n",
p_sys->i_request_context++ );
}
else
{
p += sprintf( p, "Pragma: no-cache,rate=1.000000,stream-time=0,stream-offset=%u:%u,request-context=%d,max-duration=0\r\n",
(uint32_t)((i_pos >> 32)&0xffffffff), (uint32_t)(i_pos&0xffffffff), p_sys->i_request_context++ );
(uint32_t)((i_pos >> 32)&0xffffffff),
(uint32_t)(i_pos&0xffffffff),
p_sys->i_request_context++ );
}
p += sprintf( p, "Pragma: xPlayStrm=1\r\n" );
//p += sprintf( p, "Pragma: xClientGUID={c77e7400-738a-11d2-9add-0020af0a3278}\r\n" );
p += sprintf( p, "Pragma: xClientGUID={"GUID_FMT"}\r\n", GUID_PRINT( p_sys->guid ) );
p += sprintf( p, "Pragma: xClientGUID={"GUID_FMT"}\r\n",
GUID_PRINT( p_sys->guid ) );
p += sprintf( p, "Pragma: stream-switch-count=%d\r\n", i_streams );
p += sprintf( p, "Pragma: stream-switch-entry=" );
for( i = 0; i < i_streams; i++ )
......@@ -607,7 +631,8 @@ static int mmsh_start( input_thread_t *p_input, access_sys_t *p_sys, off_t i_pos
if( p_ans->i_error < 200 || p_ans->i_error >= 300 )
{
msg_Err( p_input, "error %d (server return=`%s')", p_ans->i_error, p_ans->psz_answer );
msg_Err( p_input, "error %d (server return=`%s')",
p_ans->i_error, p_ans->psz_answer );
http_answer_free( p_ans );
return VLC_EGENERIC;
}
......@@ -626,10 +651,13 @@ static int mmsh_start( input_thread_t *p_input, access_sys_t *p_sys, off_t i_pos
return VLC_SUCCESS;
}
static void mmsh_stop( input_thread_t *p_input, access_sys_t *p_sys )
static void mmsh_stop( input_thread_t *p_input )
{
access_sys_t *p_sys = p_input->p_access_data;
msg_Dbg( p_input, "closing stream" );
NetClose( p_input, p_sys->p_socket );
p_sys->p_socket = NULL;
}
static ssize_t NetFill( input_thread_t *p_input,
......@@ -643,14 +671,13 @@ static ssize_t NetFill( input_thread_t *p_input,
{
return 0;
}
for( ;; )
{
int i_read;
i_read =
NetRead( p_input, p_sys->p_socket, &p_sys->buffer[p_sys->i_buffer], i_size );
i_read = NetRead( p_input, p_sys->p_socket,
&p_sys->buffer[p_sys->i_buffer], i_size );
if( i_read == 0 )
{
......@@ -875,15 +902,29 @@ static http_answer_t *http_answer_parse( uint8_t *p_data, int i_data )
{
http_answer_t *ans = malloc( sizeof( http_answer_t ) );
http_field_t **pp_last;
char buffer[1024];
char *p, *end;
if( sscanf( p_data, "HTTP/1.%d %d %s", &ans-> i_version, &ans->i_error, buffer ) < 3 )
if( strncmp( p_data, "HTTP/1.", 7 ) )
{
free( ans );
return NULL;
}
ans->psz_answer = strdup( buffer );
fprintf( stderr, "version=%d error=%d answer=%s\n", ans-> i_version, ans->i_error, ans->psz_answer );
ans->i_version = atoi( &p_data[7] );
ans->i_error = strtol( p_data + 8, &p, 0 );
while( *p == ' ' )
{
p++;
}
if( ( ( end = strchr( p, '\r' ) ) == NULL )&&
( ( end = strchr( p, '\n' ) ) == NULL ) )
{
end = &p_data[i_data];
}
ans->psz_answer = strndup( p, end - p );
fprintf( stderr, "version=%d error=%d answer=%s\n",
ans->i_version, ans->i_error, ans->psz_answer );
ans->p_fields = NULL;
ans->i_body = 0;
ans->p_body = 0;
......@@ -923,7 +964,8 @@ static http_answer_t *http_answer_parse( uint8_t *p_data, int i_data )
*pp_last = p_field;
pp_last = &p_field->p_next;
fprintf( stderr, "field name=`%s' value=`%s'\n", p_field->psz_name, p_field->psz_value );
fprintf( stderr, "field name=`%s' value=`%s'\n",
p_field->psz_name, p_field->psz_value );
}
}
......@@ -974,25 +1016,6 @@ static http_field_t *http_field_find( http_field_t *p_field, char *psz_name )
return NULL;
}
#if 0
static char *http_field_get_value( http_answer_t *ans, char *psz_name )
{
http_field_t *p_field = ans->p_fields;
while( p_field )
{
if( !strcasecmp( p_field->psz_name, psz_name ) )
{
return p_field->psz_value;
}
p_field = p_field->p_next;
}
return NULL;
}
#endif
static int chunk_parse( chunk_t *ck, uint8_t *p_data, int i_data )
{
......@@ -1010,10 +1033,6 @@ static int chunk_parse( chunk_t *ck, uint8_t *p_data, int i_data )
ck->p_data = p_data + 12;
ck->i_data = __MIN( i_data - 12, ck->i_size2 - 8 );
#if 0
fprintf( stderr, "type=0x%x size=%d sequence=%d unknown=%d size2=%d data=%d\n",
ck->i_type, ck->i_size, ck->i_sequence, ck->i_unknown, ck->i_size2, ck->i_data );
#endif
return VLC_SUCCESS;
}
modules/access/mms/mmsh.h
View file @ 217c4d94
......@@ -2,7 +2,7 @@
* mmsh.h:
*****************************************************************************
* Copyright (C) 2001, 2002 VideoLAN
* $Id: mmsh.h,v 1.3 2003/08/17 23:02:51 fenrir Exp $
* $Id: mmsh.h,v 1.4 2003/08/26 00:51:19 fenrir Exp $
*
* Authors: Laurent Aimar <fenrir@via.ecp.fr>
*
......@@ -103,5 +103,5 @@ static void http_answer_free ( http_answer_t * );
/* static char *http_field_get_value ( http_answer_t *, char * ); */
static http_field_t *http_field_find ( http_field_t *, char * );
static int mmsh_start( input_thread_t *, access_sys_t *, off_t );
static void mmsh_stop ( input_thread_t *, access_sys_t * );
static int mmsh_start( input_thread_t *, off_t );
static void mmsh_stop ( input_thread_t * );
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