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Diffstat (limited to 'lib/libdvd/libdvdread/src/dvd_reader.c')
-rw-r--r--lib/libdvd/libdvdread/src/dvd_reader.c1395
1 files changed, 1395 insertions, 0 deletions
diff --git a/lib/libdvd/libdvdread/src/dvd_reader.c b/lib/libdvd/libdvdread/src/dvd_reader.c
new file mode 100644
index 0000000000..e865b41ef5
--- /dev/null
+++ b/lib/libdvd/libdvdread/src/dvd_reader.c
@@ -0,0 +1,1395 @@
+/*
+ * Copyright (C) 2001-2004 Billy Biggs <vektor@dumbterm.net>,
+ * HÂkan Hjort <d95hjort@dtek.chalmers.se>,
+ * Bjˆrn Englund <d4bjorn@dtek.chalmers.se>
+ *
+ * This program 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.
+ *
+ * This program 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 this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
+ */
+
+#include "config.h"
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/time.h> /* For the timing of dvdcss_title crack. */
+#include <fcntl.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <errno.h>
+#include <string.h>
+#include <unistd.h>
+#include <limits.h>
+#include <dirent.h>
+
+#define WITH_CACHE
+
+/* misc win32 helpers */
+#ifdef WIN32
+#ifndef HAVE_GETTIMEOFDAY
+/* replacement gettimeofday implementation */
+#include <sys/timeb.h>
+static inline int _private_gettimeofday( struct timeval *tv, void *tz )
+{
+ struct timeb t;
+ ftime( &t );
+ tv->tv_sec = t.time;
+ tv->tv_usec = t.millitm * 1000;
+ return 0;
+}
+#define gettimeofday(TV, TZ) _private_gettimeofday((TV), (TZ))
+#endif
+#include <io.h> /* read() */
+#define lseek64 _lseeki64
+#endif
+
+#if defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__NetBSD__) || defined(__bsdi__)|| defined(__DARWIN__)
+#define SYS_BSD 1
+#endif
+
+#if defined(__sun)
+#include <sys/mnttab.h>
+#elif defined(SYS_BSD)
+#include <fstab.h>
+#elif defined(__linux__)
+#include <mntent.h>
+#endif
+
+#include "dvd_udf.h"
+#include "dvd_input.h"
+#include "dvd_reader.h"
+#include "md5.h"
+
+#define DEFAULT_UDF_CACHE_LEVEL 1
+
+struct dvd_reader_s {
+ /* Basic information. */
+ int isImageFile;
+
+ /* Hack for keeping track of the css status.
+ * 0: no css, 1: perhaps (need init of keys), 2: have done init */
+ int css_state;
+ int css_title; /* Last title that we have called dvdinpute_title for. */
+
+ /* Information required for an image file. */
+ dvd_input_t dev;
+
+ /* Information required for a directory path drive. */
+ char *path_root;
+
+ /* Filesystem cache */
+ int udfcache_level; /* 0 - turned off, 1 - on */
+ void *udfcache;
+};
+
+#define TITLES_MAX 9
+
+struct dvd_file_s {
+ /* Basic information. */
+ dvd_reader_t *dvd;
+
+ /* Hack for selecting the right css title. */
+ int css_title;
+
+ /* Information required for an image file. */
+ uint32_t lb_start;
+ uint32_t seek_pos;
+
+#ifdef WITH_CACHE
+ char cache[DVD_VIDEO_LB_LEN];
+ uint32_t lb_cache;
+#endif
+ /* Information required for a directory path drive. */
+ size_t title_sizes[ TITLES_MAX ];
+ dvd_input_t title_devs[ TITLES_MAX ];
+
+ /* Calculated at open-time, size in blocks. */
+ ssize_t filesize;
+};
+
+int UDFReadBlocksRaw( dvd_reader_t *device, uint32_t lb_number,
+ size_t block_count, unsigned char *data,
+ int encrypted );
+
+/**
+ * Set the level of caching on udf
+ * level = 0 (no caching)
+ * level = 1 (caching filesystem info)
+ */
+int DVDUDFCacheLevel(dvd_reader_t *device, int level)
+{
+ struct dvd_reader_s *dev = (struct dvd_reader_s *)device;
+
+ if(level > 0) {
+ level = 1;
+ } else if(level < 0) {
+ return dev->udfcache_level;
+ }
+
+ dev->udfcache_level = level;
+
+ return level;
+}
+
+void *GetUDFCacheHandle(dvd_reader_t *device)
+{
+ struct dvd_reader_s *dev = (struct dvd_reader_s *)device;
+
+ return dev->udfcache;
+}
+
+void SetUDFCacheHandle(dvd_reader_t *device, void *cache)
+{
+ struct dvd_reader_s *dev = (struct dvd_reader_s *)device;
+
+ dev->udfcache = cache;
+}
+
+
+
+/* Loop over all titles and call dvdcss_title to crack the keys. */
+static int initAllCSSKeys( dvd_reader_t *dvd )
+{
+ struct timeval all_s, all_e;
+ struct timeval t_s, t_e;
+ char filename[ MAX_UDF_FILE_NAME_LEN ];
+ uint32_t start, len;
+ int title;
+
+ char *nokeys_str = getenv("DVDREAD_NOKEYS");
+ if(nokeys_str != NULL)
+ return 0;
+
+ fprintf( stderr, "\n" );
+ fprintf( stderr, "libdvdread: Attempting to retrieve all CSS keys\n" );
+ fprintf( stderr, "libdvdread: This can take a _long_ time, "
+ "please be patient\n\n" );
+
+ gettimeofday(&all_s, NULL);
+
+ for( title = 0; title < 100; title++ ) {
+ gettimeofday( &t_s, NULL );
+ if( title == 0 ) {
+ sprintf( filename, "/VIDEO_TS/VIDEO_TS.VOB" );
+ } else {
+ sprintf( filename, "/VIDEO_TS/VTS_%02d_%d.VOB", title, 0 );
+ }
+ start = UDFFindFile( dvd, filename, &len );
+ if( start != 0 && len != 0 ) {
+ /* Perform CSS key cracking for this title. */
+ fprintf( stderr, "libdvdread: Get key for %s at 0x%08x\n",
+ filename, start );
+ if( dvdinput_title( dvd->dev, (int)start ) < 0 ) {
+ fprintf( stderr, "libdvdread: Error cracking CSS key for %s (0x%08x)\n", filename, start);
+ }
+ gettimeofday( &t_e, NULL );
+ fprintf( stderr, "libdvdread: Elapsed time %ld\n",
+ (long int) t_e.tv_sec - t_s.tv_sec );
+ }
+
+ if( title == 0 ) continue;
+
+ gettimeofday( &t_s, NULL );
+ sprintf( filename, "/VIDEO_TS/VTS_%02d_%d.VOB", title, 1 );
+ start = UDFFindFile( dvd, filename, &len );
+ if( start == 0 || len == 0 ) break;
+
+ /* Perform CSS key cracking for this title. */
+ fprintf( stderr, "libdvdread: Get key for %s at 0x%08x\n",
+ filename, start );
+ if( dvdinput_title( dvd->dev, (int)start ) < 0 ) {
+ fprintf( stderr, "libdvdread: Error cracking CSS key for %s (0x%08x)!!\n", filename, start);
+ }
+ gettimeofday( &t_e, NULL );
+ fprintf( stderr, "libdvdread: Elapsed time %ld\n",
+ (long int) t_e.tv_sec - t_s.tv_sec );
+ }
+ title--;
+
+ fprintf( stderr, "libdvdread: Found %d VTS's\n", title );
+ gettimeofday(&all_e, NULL);
+ fprintf( stderr, "libdvdread: Elapsed time %ld\n",
+ (long int) all_e.tv_sec - all_s.tv_sec );
+
+ return 0;
+}
+
+
+
+/**
+ * Open a DVD image or block device file.
+ */
+static dvd_reader_t *DVDOpenImageFile( const char *location, int have_css )
+{
+ dvd_reader_t *dvd;
+ dvd_input_t dev;
+
+ dev = dvdinput_open( location );
+ if( !dev ) {
+ fprintf( stderr, "libdvdread: Can't open %s for reading\n", location );
+ return NULL;
+ }
+
+ dvd = (dvd_reader_t *) malloc( sizeof( dvd_reader_t ) );
+ if( !dvd ) {
+ dvdinput_close(dev);
+ return NULL;
+ }
+ dvd->isImageFile = 1;
+ dvd->dev = dev;
+ dvd->path_root = NULL;
+
+ dvd->udfcache_level = DEFAULT_UDF_CACHE_LEVEL;
+ dvd->udfcache = NULL;
+
+ if( have_css ) {
+ /* Only if DVDCSS_METHOD = title, a bit if it's disc or if
+ * DVDCSS_METHOD = key but region missmatch. Unfortunaly we
+ * don't have that information. */
+
+ dvd->css_state = 1; /* Need key init. */
+ }
+ dvd->css_title = 0;
+
+ return dvd;
+}
+
+static dvd_reader_t *DVDOpenPath( const char *path_root )
+{
+ dvd_reader_t *dvd;
+
+ dvd = (dvd_reader_t *) malloc( sizeof( dvd_reader_t ) );
+ if( !dvd ) return NULL;
+ dvd->isImageFile = 0;
+ dvd->dev = 0;
+ dvd->path_root = strdup( path_root );
+ if(!dvd->path_root) {
+ free(dvd);
+ return 0;
+ }
+
+ dvd->udfcache_level = DEFAULT_UDF_CACHE_LEVEL;
+ dvd->udfcache = NULL;
+
+ dvd->css_state = 0; /* Only used in the UDF path */
+ dvd->css_title = 0; /* Only matters in the UDF path */
+
+ return dvd;
+}
+
+#if defined(__sun)
+/* /dev/rdsk/c0t6d0s0 (link to /devices/...)
+ /vol/dev/rdsk/c0t6d0/??
+ /vol/rdsk/<name> */
+static char *sun_block2char( const char *path )
+{
+ char *new_path;
+
+ /* Must contain "/dsk/" */
+ if( !strstr( path, "/dsk/" ) ) return (char *) strdup( path );
+
+ /* Replace "/dsk/" with "/rdsk/" */
+ new_path = malloc( strlen(path) + 2 );
+ strcpy( new_path, path );
+ strcpy( strstr( new_path, "/dsk/" ), "" );
+ strcat( new_path, "/rdsk/" );
+ strcat( new_path, strstr( path, "/dsk/" ) + strlen( "/dsk/" ) );
+
+ return new_path;
+}
+#endif
+
+#if defined(SYS_BSD)
+/* FreeBSD /dev/(r)(a)cd0c (a is for atapi), recomended to _not_ use r
+ OpenBSD /dev/rcd0c, it needs to be the raw device
+ NetBSD /dev/rcd0[d|c|..] d for x86, c (for non x86), perhaps others
+ Darwin /dev/rdisk0, it needs to be the raw device
+ BSD/OS /dev/sr0c (if not mounted) or /dev/rsr0c ('c' any letter will do) */
+static char *bsd_block2char( const char *path )
+{
+ char *new_path;
+
+ /* If it doesn't start with "/dev/" or does start with "/dev/r" exit */
+ if( !strncmp( path, "/dev/", 5 ) || strncmp( path, "/dev/r", 6 ) )
+ return (char *) strdup( path );
+
+ /* Replace "/dev/" with "/dev/r" */
+ new_path = malloc( strlen(path) + 2 );
+ strcpy( new_path, "/dev/r" );
+ strcat( new_path, path + strlen( "/dev/" ) );
+
+ return new_path;
+}
+#endif
+
+dvd_reader_t *DVDOpen( const char *ppath )
+{
+ struct stat fileinfo;
+ int ret;
+ int have_css;
+ dvd_reader_t *ret_val = NULL;
+ char *dev_name = NULL;
+ char *path;
+
+#ifdef _MSC_VER
+ int len;
+#endif
+
+ if( ppath == NULL )
+ return 0;
+
+ path = strdup(ppath);
+ if( path == NULL )
+ return 0;
+
+ /* Try to open libdvdcss or fall back to standard functions */
+ have_css = dvdinput_setup();
+
+#ifdef _MSC_VER
+ /* Strip off the trailing \ if it is not a drive */
+ len = strlen(path);
+ if ((len > 1) &&
+ (path[len - 1] == '\\') &&
+ (path[len - 2] != ':'))
+ {
+ path[len-1] = '\0';
+ }
+#endif
+
+ ret = stat( path, &fileinfo );
+
+ if( ret < 0 ) {
+ /* maybe "host:port" url? try opening it with acCeSS library */
+ if( strchr(path,':') ) {
+ ret_val = DVDOpenImageFile( path, have_css );
+ free(path);
+ return ret_val;
+ }
+ /* If we can't stat the file, give up */
+ fprintf( stderr, "libdvdread: Can't stat %s\n", path );
+ perror("");
+ free(path);
+ return NULL;
+ }
+
+ /* First check if this is a block/char device or a file*/
+ if( S_ISBLK( fileinfo.st_mode ) ||
+ S_ISCHR( fileinfo.st_mode ) ||
+ S_ISREG( fileinfo.st_mode ) ) {
+
+ /**
+ * Block devices and regular files are assumed to be DVD-Video images.
+ */
+#if defined(__sun)
+ ret_val = DVDOpenImageFile( sun_block2char( path ), have_css );
+#elif defined(SYS_BSD)
+ ret_val = DVDOpenImageFile( bsd_block2char( path ), have_css );
+#else
+ ret_val = DVDOpenImageFile( path, have_css );
+#endif
+
+ free(path);
+ return ret_val;
+
+ } else if( S_ISDIR( fileinfo.st_mode ) ) {
+ dvd_reader_t *auth_drive = 0;
+ char *path_copy;
+#if defined(SYS_BSD)
+ struct fstab* fe;
+#elif defined(__sun) || defined(__linux__)
+ FILE *mntfile;
+#endif
+
+ /* XXX: We should scream real loud here. */
+ if( !(path_copy = strdup( path ) ) ) {
+ free(path);
+ return NULL;
+ }
+
+#ifndef WIN32 /* don't have fchdir, and getcwd( NULL, ... ) is strange */
+ /* Also WIN32 does not have symlinks, so we don't need this bit of code. */
+
+ /* Resolve any symlinks and get the absolut dir name. */
+ {
+ char *new_path;
+ int cdir = open( ".", O_RDONLY );
+
+ if( cdir >= 0 ) {
+ chdir( path_copy );
+ new_path = malloc(PATH_MAX+1);
+ if(!new_path) {
+ free(path);
+ return NULL;
+ }
+ getcwd(new_path, PATH_MAX );
+ fchdir( cdir );
+ close( cdir );
+ free( path_copy );
+ path_copy = new_path;
+ }
+ }
+#endif
+ /**
+ * If we're being asked to open a directory, check if that directory
+ * is the mountpoint for a DVD-ROM which we can use instead.
+ */
+
+ if( strlen( path_copy ) > 1 ) {
+ if( path_copy[ strlen( path_copy ) - 1 ] == '/' )
+ path_copy[ strlen( path_copy ) - 1 ] = '\0';
+ }
+
+ if( strlen( path_copy ) > TITLES_MAX ) {
+ if( !strcasecmp( &(path_copy[ strlen( path_copy ) - TITLES_MAX ]),
+ "/video_ts" ) ) {
+ path_copy[ strlen( path_copy ) - TITLES_MAX ] = '\0';
+ }
+ }
+
+ if(path_copy[0] == '\0') {
+ path_copy[0] = '/';
+ path_copy[1] = '\0';
+ }
+
+#if defined(SYS_BSD)
+ if( ( fe = getfsfile( path_copy ) ) ) {
+ dev_name = bsd_block2char( fe->fs_spec );
+ fprintf( stderr,
+ "libdvdread: Attempting to use device %s"
+ " mounted on %s for CSS authentication\n",
+ dev_name,
+ fe->fs_file );
+ auth_drive = DVDOpenImageFile( dev_name, have_css );
+ }
+#elif defined(__sun)
+ mntfile = fopen( MNTTAB, "r" );
+ if( mntfile ) {
+ struct mnttab mp;
+ int res;
+
+ while( ( res = getmntent( mntfile, &mp ) ) != -1 ) {
+ if( res == 0 && !strcmp( mp.mnt_mountp, path_copy ) ) {
+ dev_name = sun_block2char( mp.mnt_special );
+ fprintf( stderr,
+ "libdvdread: Attempting to use device %s"
+ " mounted on %s for CSS authentication\n",
+ dev_name,
+ mp.mnt_mountp );
+ auth_drive = DVDOpenImageFile( dev_name, have_css );
+ break;
+ }
+ }
+ fclose( mntfile );
+ }
+#elif defined(__linux__)
+ mntfile = fopen( MOUNTED, "r" );
+ if( mntfile ) {
+ struct mntent *me;
+
+ while( ( me = getmntent( mntfile ) ) ) {
+ if( !strcmp( me->mnt_dir, path_copy ) ) {
+ fprintf( stderr,
+ "libdvdread: Attempting to use device %s"
+ " mounted on %s for CSS authentication\n",
+ me->mnt_fsname,
+ me->mnt_dir );
+ auth_drive = DVDOpenImageFile( me->mnt_fsname, have_css );
+ dev_name = strdup(me->mnt_fsname);
+ break;
+ }
+ }
+ fclose( mntfile );
+ }
+#elif defined(_MSC_VER)
+ auth_drive = DVDOpenImageFile( path, have_css );
+#endif
+
+#ifndef _MSC_VER
+ if( !dev_name ) {
+ fprintf( stderr, "libdvdread: Couldn't find device name.\n" );
+ } else if( !auth_drive ) {
+ fprintf( stderr, "libdvdread: Device %s inaccessible, "
+ "CSS authentication not available.\n", dev_name );
+ }
+#else
+ if( !auth_drive ) {
+ fprintf( stderr, "libdvdread: Device %s inaccessible, "
+ "CSS authentication not available.\n", dev_name );
+ }
+#endif
+
+ free( dev_name );
+ free( path_copy );
+
+ /**
+ * If we've opened a drive, just use that.
+ */
+ if( auth_drive ) {
+ free(path);
+ return auth_drive;
+ }
+
+ /**
+ * Otherwise, we now try to open the directory tree instead.
+ */
+ ret_val = DVDOpenPath( path );
+ free( path );
+ return ret_val;
+ }
+
+ /* If it's none of the above, screw it. */
+ fprintf( stderr, "libdvdread: Could not open %s\n", path );
+ free( path );
+ return NULL;
+}
+
+void DVDClose( dvd_reader_t *dvd )
+{
+ if( dvd ) {
+ if( dvd->dev ) dvdinput_close( dvd->dev );
+ if( dvd->path_root ) free( dvd->path_root );
+ if( dvd->udfcache ) FreeUDFCache( dvd->udfcache );
+ free( dvd );
+ }
+}
+
+/**
+ * Open an unencrypted file on a DVD image file.
+ */
+static dvd_file_t *DVDOpenFileUDF( dvd_reader_t *dvd, char *filename )
+{
+ uint32_t start, len;
+ dvd_file_t *dvd_file;
+
+ start = UDFFindFile( dvd, filename, &len );
+ if( !start ) {
+ fprintf( stderr, "libdvdnav:DVDOpenFileUDF:UDFFindFile %s failed\n", filename );
+ return NULL;
+ }
+
+ dvd_file = (dvd_file_t *) malloc( sizeof( dvd_file_t ) );
+ if( !dvd_file ) {
+ fprintf( stderr, "libdvdnav:DVDOpenFileUDF:malloc failed\n" );
+ return NULL;
+ }
+ dvd_file->dvd = dvd;
+ dvd_file->lb_start = start;
+ dvd_file->seek_pos = 0;
+ memset( dvd_file->title_sizes, 0, sizeof( dvd_file->title_sizes ) );
+ memset( dvd_file->title_devs, 0, sizeof( dvd_file->title_devs ) );
+ dvd_file->filesize = len / DVD_VIDEO_LB_LEN;
+
+#ifdef WITH_CACHE
+ dvd_file->lb_cache = -1;
+#endif
+
+ return dvd_file;
+}
+
+/**
+ * Searches for <file> in directory <path>, ignoring case.
+ * Returns 0 and full filename in <filename>.
+ * or -1 on file not found.
+ * or -2 on path not found.
+ */
+static int findDirFile( const char *path, const char *file, char *filename )
+{
+#if defined(_XBMC)
+ struct stat fileinfo;
+
+ // no emulated opendir function in xbmc, so we'll
+ // check if the file exists by stat'ing it ...
+ sprintf(filename, "%s%s%s", path,
+ ( ( path[ strlen( path ) - 1 ] == '/' ) ? "" : "/" ),
+ file );
+
+ if (stat(filename, &fileinfo) == 0) return 0;
+
+#else
+ DIR *dir;
+ struct dirent *ent;
+
+ dir = opendir( path );
+ if( !dir ) return -2;
+
+ while( ( ent = readdir( dir ) ) != NULL ) {
+ if( !strcasecmp( ent->d_name, file ) ) {
+ sprintf( filename, "%s%s%s", path,
+ ( ( path[ strlen( path ) - 1 ] == '/' ) ? "" : "/" ),
+ ent->d_name );
+ closedir( dir );
+ return 0;
+ }
+ }
+
+ closedir( dir );
+#endif // _XBMC
+ return -1;
+}
+
+static int findDVDFile( dvd_reader_t *dvd, const char *file, char *filename )
+{
+ char video_path[ PATH_MAX + 1 ];
+ const char *nodirfile;
+ int ret;
+
+ /* Strip off the directory for our search */
+ if( !strncasecmp( "/VIDEO_TS/", file, 10 ) ) {
+ nodirfile = &(file[ 10 ]);
+ } else {
+ nodirfile = file;
+ }
+
+ ret = findDirFile( dvd->path_root, nodirfile, filename );
+ if( ret < 0 ) {
+ /* Try also with adding the path, just in case. */
+ sprintf( video_path, "%s/VIDEO_TS/", dvd->path_root );
+ ret = findDirFile( video_path, nodirfile, filename );
+ if( ret < 0 ) {
+ /* Try with the path, but in lower case. */
+ sprintf( video_path, "%s/video_ts/", dvd->path_root );
+ ret = findDirFile( video_path, nodirfile, filename );
+ if( ret < 0 ) {
+ return 0;
+ }
+ }
+ }
+
+ return 1;
+}
+
+/**
+ * Open an unencrypted file from a DVD directory tree.
+ */
+static dvd_file_t *DVDOpenFilePath( dvd_reader_t *dvd, char *filename )
+{
+ char full_path[ PATH_MAX + 1 ];
+ dvd_file_t *dvd_file;
+ struct stat fileinfo;
+ dvd_input_t dev;
+
+ /* Get the full path of the file. */
+ if( !findDVDFile( dvd, filename, full_path ) ) {
+ fprintf( stderr, "libdvdnav:DVDOpenFilePath:findDVDFile %s failed\n", filename );
+ return NULL;
+ }
+
+ dev = dvdinput_open( full_path );
+ if( !dev ) {
+ fprintf( stderr, "libdvdnav:DVDOpenFilePath:dvdinput_open %s failed\n", full_path );
+ return NULL;
+ }
+
+ dvd_file = (dvd_file_t *) malloc( sizeof( dvd_file_t ) );
+ if( !dvd_file ) {
+ fprintf( stderr, "libdvdnav:DVDOpenFilePath:dvd_file malloc failed\n" );
+ dvdinput_close(dev);
+ return NULL;
+ }
+ dvd_file->dvd = dvd;
+ dvd_file->lb_start = 0;
+ dvd_file->seek_pos = 0;
+ memset( dvd_file->title_sizes, 0, sizeof( dvd_file->title_sizes ) );
+ memset( dvd_file->title_devs, 0, sizeof( dvd_file->title_devs ) );
+ dvd_file->filesize = 0;
+
+ if( stat( full_path, &fileinfo ) < 0 ) {
+ fprintf( stderr, "libdvdread: Can't stat() %s.\n", filename );
+ free( dvd_file );
+ return NULL;
+ }
+ dvd_file->title_sizes[ 0 ] = fileinfo.st_size / DVD_VIDEO_LB_LEN;
+ dvd_file->title_devs[ 0 ] = dev;
+ dvd_file->filesize = dvd_file->title_sizes[ 0 ];
+
+#ifdef WITH_CACHE
+ dvd_file->lb_cache = -1;
+#endif
+ return dvd_file;
+}
+
+static dvd_file_t *DVDOpenVOBUDF( dvd_reader_t *dvd, int title, int menu )
+{
+ char filename[ MAX_UDF_FILE_NAME_LEN ];
+ uint32_t start, len;
+ dvd_file_t *dvd_file;
+
+ if( title == 0 ) {
+ sprintf( filename, "/VIDEO_TS/VIDEO_TS.VOB" );
+ } else {
+ sprintf( filename, "/VIDEO_TS/VTS_%02d_%d.VOB", title, menu ? 0 : 1 );
+ }
+ start = UDFFindFile( dvd, filename, &len );
+ if( start == 0 ) return NULL;
+
+ dvd_file = (dvd_file_t *) malloc( sizeof( dvd_file_t ) );
+ if( !dvd_file ) return NULL;
+ dvd_file->dvd = dvd;
+ /*Hack*/ dvd_file->css_title = title << 1 | menu;
+ dvd_file->lb_start = start;
+ dvd_file->seek_pos = 0;
+ memset( dvd_file->title_sizes, 0, sizeof( dvd_file->title_sizes ) );
+ memset( dvd_file->title_devs, 0, sizeof( dvd_file->title_devs ) );
+ dvd_file->filesize = len / DVD_VIDEO_LB_LEN;
+
+#ifdef WITH_CACHE
+ dvd_file->lb_cache = -1;
+#endif
+ /* Calculate the complete file size for every file in the VOBS */
+ if( !menu ) {
+ int cur;
+
+ for( cur = 2; cur < 10; cur++ ) {
+ sprintf( filename, "/VIDEO_TS/VTS_%02d_%d.VOB", title, cur );
+ if( !UDFFindFile( dvd, filename, &len ) ) break;
+ dvd_file->filesize += len / DVD_VIDEO_LB_LEN;
+ }
+ }
+
+ if( dvd->css_state == 1 /* Need key init */ ) {
+ initAllCSSKeys( dvd );
+ dvd->css_state = 2;
+ }
+ /*
+ if( dvdinput_title( dvd_file->dvd->dev, (int)start ) < 0 ) {
+ fprintf( stderr, "libdvdread: Error cracking CSS key for %s\n",
+ filename );
+ }
+ */
+
+ return dvd_file;
+}
+
+static dvd_file_t *DVDOpenVOBPath( dvd_reader_t *dvd, int title, int menu )
+{
+ char filename[ MAX_UDF_FILE_NAME_LEN ];
+ char full_path[ PATH_MAX + 1 ];
+ struct stat fileinfo;
+ dvd_file_t *dvd_file;
+ int i;
+
+ dvd_file = (dvd_file_t *) malloc( sizeof( dvd_file_t ) );
+ if( !dvd_file ) return NULL;
+ dvd_file->dvd = dvd;
+ /*Hack*/ dvd_file->css_title = title << 1 | menu;
+ dvd_file->lb_start = 0;
+ dvd_file->seek_pos = 0;
+ memset( dvd_file->title_sizes, 0, sizeof( dvd_file->title_sizes ) );
+ memset( dvd_file->title_devs, 0, sizeof( dvd_file->title_devs ) );
+ dvd_file->filesize = 0;
+
+#ifdef WITH_CACHE
+ dvd_file->lb_cache = -1;
+#endif
+
+ if( menu ) {
+ dvd_input_t dev;
+
+ if( title == 0 ) {
+ sprintf( filename, "VIDEO_TS.VOB" );
+ } else {
+ sprintf( filename, "VTS_%02i_0.VOB", title );
+ }
+ if( !findDVDFile( dvd, filename, full_path ) ) {
+ free( dvd_file );
+ return NULL;
+ }
+
+ dev = dvdinput_open( full_path );
+ if( dev == NULL ) {
+ free( dvd_file );
+ return NULL;
+ }
+
+ if( stat( full_path, &fileinfo ) < 0 ) {
+ fprintf( stderr, "libdvdread: Can't stat() %s.\n", filename );
+ dvdinput_close(dev);
+ free( dvd_file );
+ return NULL;
+ }
+ dvd_file->title_sizes[ 0 ] = fileinfo.st_size / DVD_VIDEO_LB_LEN;
+ dvd_file->title_devs[ 0 ] = dev;
+ dvdinput_title( dvd_file->title_devs[0], 0);
+ dvd_file->filesize = dvd_file->title_sizes[ 0 ];
+
+ } else {
+ for( i = 0; i < TITLES_MAX; ++i ) {
+
+ sprintf( filename, "VTS_%02i_%i.VOB", title, i + 1 );
+ if( !findDVDFile( dvd, filename, full_path ) ) {
+ break;
+ }
+
+ if( stat( full_path, &fileinfo ) < 0 ) {
+ fprintf( stderr, "libdvdread: Can't stat() %s.\n", filename );
+ break;
+ }
+
+ dvd_file->title_sizes[ i ] = fileinfo.st_size / DVD_VIDEO_LB_LEN;
+ dvd_file->title_devs[ i ] = dvdinput_open( full_path );
+ dvdinput_title( dvd_file->title_devs[ i ], 0 );
+ dvd_file->filesize += dvd_file->title_sizes[ i ];
+ }
+ if( !dvd_file->title_devs[ 0 ] ) {
+ free( dvd_file );
+ return NULL;
+ }
+ }
+
+ return dvd_file;
+}
+
+dvd_file_t *DVDOpenFile( dvd_reader_t *dvd, int titlenum,
+ dvd_read_domain_t domain )
+{
+ char filename[ MAX_UDF_FILE_NAME_LEN ];
+
+ /* Check arguments. */
+ if( dvd == NULL || titlenum < 0 )
+ return NULL;
+
+ switch( domain ) {
+ case DVD_READ_INFO_FILE:
+ if( titlenum == 0 ) {
+ sprintf( filename, "/VIDEO_TS/VIDEO_TS.IFO" );
+ } else {
+ sprintf( filename, "/VIDEO_TS/VTS_%02i_0.IFO", titlenum );
+ }
+ break;
+ case DVD_READ_INFO_BACKUP_FILE:
+ if( titlenum == 0 ) {
+ sprintf( filename, "/VIDEO_TS/VIDEO_TS.BUP" );
+ } else {
+ sprintf( filename, "/VIDEO_TS/VTS_%02i_0.BUP", titlenum );
+ }
+ break;
+ case DVD_READ_MENU_VOBS:
+ if( dvd->isImageFile ) {
+ return DVDOpenVOBUDF( dvd, titlenum, 1 );
+ } else {
+ return DVDOpenVOBPath( dvd, titlenum, 1 );
+ }
+ break;
+ case DVD_READ_TITLE_VOBS:
+ if( titlenum == 0 ) return 0;
+ if( dvd->isImageFile ) {
+ return DVDOpenVOBUDF( dvd, titlenum, 0 );
+ } else {
+ return DVDOpenVOBPath( dvd, titlenum, 0 );
+ }
+ break;
+ default:
+ fprintf( stderr, "libdvdread: Invalid domain for file open.\n" );
+ return NULL;
+ }
+
+ if( dvd->isImageFile ) {
+ return DVDOpenFileUDF( dvd, filename );
+ } else {
+ return DVDOpenFilePath( dvd, filename );
+ }
+}
+
+void DVDCloseFile( dvd_file_t *dvd_file )
+{
+ int i;
+
+ if( dvd_file ) {
+ if( dvd_file->dvd->isImageFile ) {
+ ;
+ } else {
+ for( i = 0; i < TITLES_MAX; ++i ) {
+ if( dvd_file->title_devs[ i ] ) {
+ dvdinput_close( dvd_file->title_devs[i] );
+ }
+ }
+ }
+
+ free( dvd_file );
+ dvd_file = 0;
+ }
+}
+
+/* Internal, but used from dvd_udf.c */
+int UDFReadBlocksRaw( dvd_reader_t *device, uint32_t lb_number,
+ size_t block_count, unsigned char *data,
+ int encrypted )
+{
+ int ret;
+ if( !device->dev ) {
+ fprintf( stderr, "libdvdread: Fatal error in block read.\n" );
+ return 0;
+ }
+
+ ret = dvdinput_seek( device->dev, (int) lb_number );
+ if( ret != (int) lb_number ) {
+ fprintf( stderr, "libdvdread: Can't seek to block %u\n", lb_number );
+ return 0;
+ }
+
+ ret = dvdinput_read( device->dev, (char *) data,
+ (int) block_count, encrypted );
+ return ret;
+}
+
+/* This is using a single input and starting from 'dvd_file->lb_start' offset.
+ *
+ * Reads 'block_count' blocks from 'dvd_file' at block offset 'offset'
+ * into the buffer located at 'data' and if 'encrypted' is set
+ * descramble the data if it's encrypted. Returning either an
+ * negative error or the number of blocks read. */
+static int DVDReadBlocksUDF( dvd_file_t *dvd_file, uint32_t offset,
+ size_t block_count, unsigned char *data,
+ int encrypted )
+{
+ return UDFReadBlocksRaw( dvd_file->dvd, dvd_file->lb_start + offset,
+ block_count, data, encrypted );
+}
+
+/* This is using possibly several inputs and starting from an offset of '0'.
+ *
+ * Reads 'block_count' blocks from 'dvd_file' at block offset 'offset'
+ * into the buffer located at 'data' and if 'encrypted' is set
+ * descramble the data if it's encrypted. Returning either an
+ * negative error or the number of blocks read. */
+static int DVDReadBlocksPath( dvd_file_t *dvd_file, unsigned int offset,
+ size_t block_count, unsigned char *data,
+ int encrypted )
+{
+ int i;
+ int ret, ret2, off;
+
+ ret = 0;
+ ret2 = 0;
+ for( i = 0; i < TITLES_MAX; ++i ) {
+ if( !dvd_file->title_sizes[ i ] ) return 0; /* Past end of file */
+
+ if( offset < dvd_file->title_sizes[ i ] ) {
+ if( ( offset + block_count ) <= dvd_file->title_sizes[ i ] ) {
+ off = dvdinput_seek( dvd_file->title_devs[ i ], (int)offset );
+ if( off < 0 || off != (int)offset ) {
+ fprintf( stderr, "libdvdread: Can't seek to block %d\n",
+ offset );
+ return off < 0 ? off : 0;
+ }
+ ret = dvdinput_read( dvd_file->title_devs[ i ], data,
+ (int)block_count, encrypted );
+ break;
+ } else {
+ size_t part1_size = dvd_file->title_sizes[ i ] - offset;
+ /* FIXME: Really needs to be a while loop.
+ * (This is only true if you try and read >1GB at a time) */
+
+ /* Read part 1 */
+ off = dvdinput_seek( dvd_file->title_devs[ i ], (int)offset );
+ if( off < 0 || off != (int)offset ) {
+ fprintf( stderr, "libdvdread: Can't seek to block %d\n",
+ offset );
+ return off < 0 ? off : 0;
+ }
+ ret = dvdinput_read( dvd_file->title_devs[ i ], data,
+ (int)part1_size, encrypted );
+ if( ret < 0 ) return ret;
+ /* FIXME: This is wrong if i is the last file in the set.
+ * also error from this read will not show in ret. */
+
+ /* Does the next part exist? If not then return now. */
+ if( i + 1 >= TITLES_MAX || !dvd_file->title_devs[ i + 1 ] )
+ return ret;
+
+ /* Read part 2 */
+ off = dvdinput_seek( dvd_file->title_devs[ i + 1 ], 0 );
+ if( off < 0 || off != 0 ) {
+ fprintf( stderr, "libdvdread: Can't seek to block %d\n",
+ 0 );
+ return off < 0 ? off : 0;
+ }
+ ret2 = dvdinput_read( dvd_file->title_devs[ i + 1 ],
+ data + ( part1_size
+ * (int64_t)DVD_VIDEO_LB_LEN ),
+ (int)(block_count - part1_size),
+ encrypted );
+ if( ret2 < 0 ) return ret2;
+ break;
+ }
+ } else {
+ offset -= dvd_file->title_sizes[ i ];
+ }
+ }
+
+ return ret + ret2;
+}
+
+#ifdef WITH_CACHE
+
+/* returns true aslong as the sector isn't all zeros */
+inline int DVDCheckSector(unsigned char *data, int offset)
+{
+ int i = 0;
+ int32_t *p = (int32_t*)data + (DVD_VIDEO_LB_LEN>>2)*offset;
+ for(;i<(DVD_VIDEO_LB_LEN<<2);i++) {
+ if(*(p+i) != 0)
+ break;
+ }
+ return (i!=(DVD_VIDEO_LB_LEN>>2));
+}
+
+int DVDReadBlocksCached( dvd_file_t *dvd_file, int offset,
+ size_t block_count, unsigned char *data, int encrypted )
+{
+ int ret=0;
+ /* Check arguments. */
+ if( dvd_file == NULL || offset < 0 || data == NULL )
+ return -1;
+
+ if(encrypted & DVDINPUT_READ_DECRYPT) {
+ /* Hack, and it will still fail for multiple opens in a threaded app ! */
+ if( dvd_file->dvd->css_title != dvd_file->css_title ) {
+ dvd_file->dvd->css_title = dvd_file->css_title;
+ if( dvd_file->dvd->isImageFile ) {
+ dvdinput_title( dvd_file->dvd->dev, (int)dvd_file->lb_start );
+ }
+ /* Here each vobu has it's own dvdcss handle, so no need to update
+ else {
+ dvdinput_title( dvd_file->title_devs[ 0 ], (int)dvd_file->lb_start );
+ }*/
+ }
+ }
+
+ /* check if first sector is in cache */
+ int cachehit = 0;
+ if( offset == dvd_file->lb_cache ) {
+ memcpy( data, dvd_file->cache, DVD_VIDEO_LB_LEN );
+ block_count--;
+ offset++;
+ data+=DVD_VIDEO_LB_LEN;
+ cachehit = 1;
+ }
+
+
+ if( block_count > 0 )
+ {
+ if( dvd_file->dvd->isImageFile )
+ ret = DVDReadBlocksUDF( dvd_file, (uint32_t)offset,
+ block_count, data, encrypted );
+ else
+ ret = DVDReadBlocksPath( dvd_file, (unsigned int)offset,
+ block_count, data, encrypted );
+
+ if(ret<0)
+ return ret;
+
+ /* here is a hack for drive wich don't handle layerchange properly */
+ /* they start returning zero data while laser is shifting position */
+ /* normally just doing a reread will get the correct data */
+ if( dvd_file->dvd->isImageFile )
+ {
+ /* check sectors from the back */
+ int count = ret; /* previous call could have returned fewer than requested */
+ int i = count-1;
+ for(;i>=0;i--)
+ if(!DVDCheckSector(data, i)) break;
+
+ if(i>=0) {
+ fprintf( stderr, "libdvdread: potential layer change. %d zero sectors detected starting at %d!\n", i+1, offset);
+
+ /* reread the invalid sectors */
+ count = DVDReadBlocksUDF( dvd_file, (uint32_t)offset+i,
+ count-i, data+DVD_VIDEO_LB_LEN*i, encrypted );
+
+ if(count<0)
+ return count;
+ }
+ }
+
+ }
+
+ if(ret>0)
+ { /* store last sector read into cache */
+ dvd_file->lb_cache = offset+ret-1;
+ memcpy( dvd_file->cache, data+(DVD_VIDEO_LB_LEN*(ret-1)), DVD_VIDEO_LB_LEN );
+ }
+
+ return (ssize_t)(ret+cachehit);
+}
+#endif
+
+/* This is broken reading more than 2Gb at a time is ssize_t is 32-bit. */
+ssize_t DVDReadBlocks( dvd_file_t *dvd_file, int offset,
+ size_t block_count, unsigned char *data )
+{
+ int ret;
+ /* Check arguments. */
+ if( dvd_file == NULL || offset < 0 || data == NULL )
+ return -1;
+
+#ifdef WITH_CACHE
+ return (ssize_t)DVDReadBlocksCached( dvd_file, offset, block_count, data, DVDINPUT_READ_DECRYPT );
+#endif
+
+ /* Hack, and it will still fail for multiple opens in a threaded app ! */
+ if( dvd_file->dvd->css_title != dvd_file->css_title ) {
+ dvd_file->dvd->css_title = dvd_file->css_title;
+ if( dvd_file->dvd->isImageFile ) {
+ dvdinput_title( dvd_file->dvd->dev, (int)dvd_file->lb_start );
+ }
+ /* Here each vobu has it's own dvdcss handle, so no need to update
+ else {
+ dvdinput_title( dvd_file->title_devs[ 0 ], (int)dvd_file->lb_start );
+ }*/
+ }
+
+ if( dvd_file->dvd->isImageFile ) {
+ ret = DVDReadBlocksUDF( dvd_file, (uint32_t)offset,
+ block_count, data, DVDINPUT_READ_DECRYPT );
+ } else {
+ ret = DVDReadBlocksPath( dvd_file, (unsigned int)offset,
+ block_count, data, DVDINPUT_READ_DECRYPT );
+ }
+
+ return (ssize_t)ret;
+}
+
+int32_t DVDFileSeek( dvd_file_t *dvd_file, int32_t offset )
+{
+ /* Check arguments. */
+ if( dvd_file == NULL || offset < 0 )
+ return -1;
+
+ if( offset > dvd_file->filesize * DVD_VIDEO_LB_LEN ) {
+ return -1;
+ }
+ dvd_file->seek_pos = (uint32_t) offset;
+ return offset;
+}
+
+int DVDFileSeekForce(dvd_file_t *dvd_file, int offset, int force_size)
+{
+ /* Check arguments. */
+ if( dvd_file == NULL || offset <= 0 )
+ return -1;
+
+ if( dvd_file->dvd->isImageFile ) {
+ if( force_size < 0 )
+ force_size = (offset - 1) / DVD_VIDEO_LB_LEN + 1;
+ if( dvd_file->filesize < force_size ) {
+ dvd_file->filesize = force_size;
+ fprintf(stderr, "libdvdread: Ignored size of file indicated in UDF.\n");
+ }
+ }
+
+ if( offset > dvd_file->filesize * DVD_VIDEO_LB_LEN )
+ return -1;
+
+ dvd_file->seek_pos = (uint32_t) offset;
+ return offset;
+}
+
+ssize_t DVDReadBytes( dvd_file_t *dvd_file, void *data, size_t byte_size )
+{
+ unsigned char *secbuf_base, *secbuf;
+ unsigned int numsec, seek_sector, seek_byte;
+ int ret;
+
+ /* Check arguments. */
+ if( dvd_file == NULL || data == NULL )
+ return -1;
+
+ seek_sector = dvd_file->seek_pos / DVD_VIDEO_LB_LEN;
+ seek_byte = dvd_file->seek_pos % DVD_VIDEO_LB_LEN;
+
+ numsec = ( ( seek_byte + byte_size ) / DVD_VIDEO_LB_LEN ) +
+ ( ( ( seek_byte + byte_size ) % DVD_VIDEO_LB_LEN ) ? 1 : 0 );
+
+ secbuf_base = (unsigned char *) malloc( numsec * DVD_VIDEO_LB_LEN + 2048 );
+ secbuf = (unsigned char *)(((uintptr_t)secbuf_base & ~((uintptr_t)2047)) + 2048);
+ if( !secbuf_base ) {
+ fprintf( stderr, "libdvdread: Can't allocate memory "
+ "for file read!\n" );
+ return 0;
+ }
+
+#ifdef WITH_CACHE
+ ret = DVDReadBlocksCached( dvd_file, (uint32_t) seek_sector,
+ (size_t) numsec, secbuf, DVDINPUT_NOFLAGS );
+#else
+ if( dvd_file->dvd->isImageFile ) {
+ ret = DVDReadBlocksUDF( dvd_file, (uint32_t) seek_sector,
+ (size_t) numsec, secbuf, DVDINPUT_NOFLAGS );
+ } else {
+ ret = DVDReadBlocksPath( dvd_file, seek_sector,
+ (size_t) numsec, secbuf, DVDINPUT_NOFLAGS );
+ }
+#endif
+
+ if( ret != (int) numsec ) {
+ free( secbuf_base );
+ return ret < 0 ? ret : 0;
+ }
+
+ memcpy( data, &(secbuf[ seek_byte ]), byte_size );
+ free( secbuf_base );
+
+ DVDFileSeekForce(dvd_file, dvd_file->seek_pos + byte_size, -1);
+ return byte_size;
+}
+
+ssize_t DVDFileSize( dvd_file_t *dvd_file )
+{
+ /* Check arguments. */
+ if( dvd_file == NULL )
+ return -1;
+
+ return dvd_file->filesize;
+}
+
+int DVDDiscID( dvd_reader_t *dvd, unsigned char *discid )
+{
+ struct md5_ctx ctx;
+ int title;
+ int nr_of_files = 0;
+
+ /* Check arguments. */
+ if( dvd == NULL || discid == NULL )
+ return 0;
+
+ /* Go through the first 10 IFO:s, in order,
+ * and md5sum them, i.e VIDEO_TS.IFO and VTS_0?_0.IFO */
+ md5_init_ctx( &ctx );
+ for( title = 0; title < 10; title++ ) {
+ dvd_file_t *dvd_file = DVDOpenFile( dvd, title, DVD_READ_INFO_FILE );
+ if( dvd_file != NULL ) {
+ ssize_t bytes_read;
+ size_t file_size = dvd_file->filesize * DVD_VIDEO_LB_LEN;
+ char *buffer_base = malloc( file_size + 2048 );
+ char *buffer = (char *)(((uintptr_t)buffer_base & ~((uintptr_t)2047)) + 2048);
+
+ if( buffer_base == NULL ) {
+ DVDCloseFile( dvd_file );
+ fprintf( stderr, "libdvdread: DVDDiscId, failed to "
+ "allocate memory for file read!\n" );
+ return -1;
+ }
+ bytes_read = DVDReadBytes( dvd_file, buffer, file_size );
+ if( bytes_read != file_size ) {
+ fprintf( stderr, "libdvdread: DVDDiscId read returned %zd bytes"
+ ", wanted %zd\n", bytes_read, file_size );
+ DVDCloseFile( dvd_file );
+ free( buffer_base );
+ return -1;
+ }
+
+ md5_process_bytes( buffer, file_size, &ctx );
+
+ DVDCloseFile( dvd_file );
+ free( buffer_base );
+ nr_of_files++;
+ }
+ }
+ md5_finish_ctx( &ctx, discid );
+ if(!nr_of_files)
+ return -1;
+
+ return 0;
+}
+
+
+int DVDISOVolumeInfo( dvd_reader_t *dvd,
+ char *volid, unsigned int volid_size,
+ unsigned char *volsetid, unsigned int volsetid_size )
+{
+ unsigned char *buffer, *buffer_base;
+ int ret;
+
+ /* Check arguments. */
+ if( dvd == NULL )
+ return 0;
+
+ if( dvd->dev == NULL ) {
+ /* No block access, so no ISO... */
+ return -1;
+ }
+
+ buffer_base = malloc( DVD_VIDEO_LB_LEN + 2048 );
+ buffer = (unsigned char *)(((uintptr_t)buffer_base & ~((uintptr_t)2047)) + 2048);
+
+ if( buffer_base == NULL ) {
+ fprintf( stderr, "libdvdread: DVDISOVolumeInfo, failed to "
+ "allocate memory for file read!\n" );
+ return -1;
+ }
+
+ ret = UDFReadBlocksRaw( dvd, 16, 1, buffer, 0 );
+ if( ret != 1 ) {
+ fprintf( stderr, "libdvdread: DVDISOVolumeInfo, failed to "
+ "read ISO9660 Primary Volume Descriptor!\n" );
+ free( buffer_base );
+ return -1;
+ }
+
+ if( (volid != NULL) && (volid_size > 0) ) {
+ unsigned int n;
+ for(n = 0; n < 32; n++) {
+ if(buffer[40+n] == 0x20) {
+ break;
+ }
+ }
+
+ if(volid_size > n+1) {
+ volid_size = n+1;
+ }
+
+ memcpy(volid, &buffer[40], volid_size-1);
+ volid[volid_size-1] = '\0';
+ }
+
+ if( (volsetid != NULL) && (volsetid_size > 0) ) {
+ if(volsetid_size > 128) {
+ volsetid_size = 128;
+ }
+ memcpy(volsetid, &buffer[190], volsetid_size);
+ }
+ free( buffer_base );
+ return 0;
+}
+
+
+int DVDUDFVolumeInfo( dvd_reader_t *dvd,
+ char *volid, unsigned int volid_size,
+ unsigned char *volsetid, unsigned int volsetid_size )
+{
+ int ret;
+ /* Check arguments. */
+ if( dvd == NULL )
+ return -1;
+
+ if( dvd->dev == NULL ) {
+ /* No block access, so no UDF VolumeSet Identifier */
+ return -1;
+ }
+
+ if( (volid != NULL) && (volid_size > 0) ) {
+ ret = UDFGetVolumeIdentifier(dvd, volid, volid_size);
+ if(!ret) {
+ return -1;
+ }
+ }
+ if( (volsetid != NULL) && (volsetid_size > 0) ) {
+ ret = UDFGetVolumeSetIdentifier(dvd, volsetid, volsetid_size);
+ if(!ret) {
+ return -1;
+ }
+ }
+
+ return 0;
+}
generated by cgit v1.2.3 (git 2.26.2) at 2024-12-28 03:41:02 +0000