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mpv/demux/mf.c
wm4 be7e04f719 demux_mf: fix crashes when '*' matches directories
Doing 'mpv mf://*' in a file with directories would crash, because even
though directories are skipped, the corresponding file entry is just
left at NULL, leading to a segfault on access. So explicitly skip NULL
entries.
2013-03-19 01:54:45 +01:00

185 lines
4.8 KiB
C

/*
* This file is part of MPlayer.
*
* MPlayer is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* MPlayer is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with MPlayer; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include <ctype.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <fcntl.h>
#include <errno.h>
#include <limits.h>
#include <sys/types.h>
#include "osdep/io.h"
#include "config.h"
#ifdef HAVE_GLOB
#include <glob.h>
#else
#include "osdep/glob.h"
#endif
#include "core/mp_msg.h"
#include "stream/stream.h"
#include "core/path.h"
#include "mf.h"
double mf_fps = 25.0;
char * mf_type = NULL; //"jpg";
mf_t* open_mf_pattern(char * filename)
{
#if defined(HAVE_GLOB) || defined(__MINGW32__)
glob_t gg;
int i;
char * fname = NULL;
mf_t * mf;
int error_count = 0;
int count = 0;
mf=calloc( 1,sizeof( mf_t ) );
if( filename[0] == '@' )
{
FILE *lst_f=fopen(filename + 1,"r");
if ( lst_f )
{
fname=malloc(MP_PATH_MAX);
while ( fgets( fname,MP_PATH_MAX,lst_f ) )
{
/* remove spaces from end of fname */
char *t=fname + strlen( fname ) - 1;
while ( t > fname && isspace( *t ) ) *(t--)=0;
if ( !mp_path_exists( fname ) )
{
mp_msg( MSGT_STREAM,MSGL_V,"[mf] file not found: '%s'\n",fname );
}
else
{
mf->names=realloc( mf->names,( mf->nr_of_files + 1 ) * sizeof( char* ) );
mf->names[mf->nr_of_files]=strdup( fname );
mf->nr_of_files++;
}
}
fclose( lst_f );
mp_msg( MSGT_STREAM,MSGL_INFO,"[mf] number of files: %d\n",mf->nr_of_files );
goto exit_mf;
}
mp_msg( MSGT_STREAM,MSGL_INFO,"[mf] %s is not indirect filelist\n",filename+1 );
}
if( strchr( filename,',') )
{
mp_msg( MSGT_STREAM,MSGL_INFO,"[mf] filelist: %s\n",filename );
bstr bfilename = bstr0(filename);
while (bfilename.len)
{
bstr bfname;
bstr_split_tok(bfilename, ",", &bfname, &bfilename);
char *fname = bstrdup0(NULL, bfname);
if ( !mp_path_exists( fname ) )
{
mp_msg( MSGT_STREAM,MSGL_V,"[mf] file not found: '%s'\n",fname );
}
else
{
mf->names=realloc( mf->names,( mf->nr_of_files + 1 ) * sizeof( char* ) );
mf->names[mf->nr_of_files] = strdup(fname);
// mp_msg( MSGT_STREAM,MSGL_V,"[mf] added file %d.: %s\n",mf->nr_of_files,mf->names[mf->nr_of_files] );
mf->nr_of_files++;
}
talloc_free(fname);
}
mp_msg( MSGT_STREAM,MSGL_INFO,"[mf] number of files: %d\n",mf->nr_of_files );
goto exit_mf;
}
fname=malloc( strlen( filename ) + 32 );
if ( !strchr( filename,'%' ) )
{
strcpy( fname,filename );
if ( !strchr( filename,'*' ) ) strcat( fname,"*" );
mp_msg( MSGT_STREAM,MSGL_INFO,"[mf] search expr: %s\n",fname );
if ( glob( fname,0,NULL,&gg ) )
{ free( mf ); free( fname ); return NULL; }
mf->nr_of_files=0;
mf->names=calloc( gg.gl_pathc, sizeof( char* ) );
for( i=0;i < gg.gl_pathc;i++ )
{
if (mp_path_isdir(gg.gl_pathv[i]))
continue;
mf->names[mf->nr_of_files]=strdup( gg.gl_pathv[i] );
mf->nr_of_files++;
// mp_msg( MSGT_STREAM,MSGL_DBG2,"[mf] added file %d.: %s\n",i,mf->names[i] );
}
mp_msg( MSGT_STREAM,MSGL_INFO,"[mf] number of files: %d\n",mf->nr_of_files);
globfree( &gg );
goto exit_mf;
}
mp_msg( MSGT_STREAM,MSGL_INFO,"[mf] search expr: %s\n",filename );
while ( error_count < 5 )
{
sprintf( fname,filename,count++ );
if ( !mp_path_exists( fname ) )
{
error_count++;
mp_msg( MSGT_STREAM,MSGL_V,"[mf] file not found: '%s'\n",fname );
}
else
{
mf->names=realloc( mf->names,( mf->nr_of_files + 1 ) * sizeof( char* ) );
mf->names[mf->nr_of_files]=strdup( fname );
// mp_msg( MSGT_STREAM,MSGL_V,"[mf] added file %d.: %s\n",mf->nr_of_files,mf->names[mf->nr_of_files] );
mf->nr_of_files++;
}
}
mp_msg( MSGT_STREAM,MSGL_INFO,"[mf] number of files: %d\n",mf->nr_of_files );
exit_mf:
free( fname );
return mf;
#else
mp_msg(MSGT_STREAM,MSGL_FATAL,"[mf] mf support is disabled on your os\n");
return 0;
#endif
}
mf_t* open_mf_single(char * filename)
{
mf_t *mf = calloc(1, sizeof(mf_t));
mf->nr_of_files = 1;
mf->names = calloc(1, sizeof(char *));
mf->names[0] = strdup(filename);
return mf;
}