static int UDFCacheDir( UDF_DIR *device, struct AD Dir,
struct Partition *partition, struct AD *FileICB)
{
char filename[ MAX_UDF_FILE_NAME_LEN ];
uint8_t directory_base[ 2 * DVD_VIDEO_LB_LEN + 2048];
uint8_t *directory = (uint8_t *)(((uintptr_t)directory_base & ~((uintptr_t)2047)) + 2048);
uint32_t lbnum;
uint16_t TagID;
uint8_t filechar;
unsigned int p;
uint8_t *cached_dir_base = NULL, *cached_dir;
uint32_t dir_lba;
struct AD tmpICB;
int in_cache = 0;
uint32_t file_num = 0;
/* Scan dir for ICB of file */
//lbnum = partition->Start + Dir.Location;
lbnum = UDFGetBlock(partition, Dir.Partition, Dir.Location);
if(BDUDFCacheLevel(device->udf_data, -1) > 0) {
/* caching */
if(!GetBDUDFCache(device->udf_data, LBUDFCache, lbnum, &cached_dir)) {
dir_lba = (Dir.Length + DVD_VIDEO_LB_LEN) / DVD_VIDEO_LB_LEN;
if((cached_dir_base = (uint8_t*)malloc(dir_lba * DVD_VIDEO_LB_LEN + 2048)) == NULL)
return 0;
cached_dir = (uint8_t *)(((uintptr_t)cached_dir_base & ~((uintptr_t)2047)) + 2048);
if( DVDReadLBUDF( device->udf_data, lbnum, dir_lba, cached_dir, 0) <= 0 ) {
free(cached_dir_base);
cached_dir_base = NULL;
cached_dir = NULL;
}
/*
if(cached_dir) {
fprintf(stderr, "malloc dir: %d\n", dir_lba * DVD_VIDEO_LB_LEN);
}
*/
{
uint8_t *data[2];
data[0] = cached_dir_base;
data[1] = cached_dir;
SetUDFCache(device->udf_data, LBUDFCache, lbnum, data);
}
} else
in_cache = 1;
if(cached_dir == NULL)
return 0;
p = 0;
device->aloc_num = 5;
device->file_name = malloc(256 * device->aloc_num);
while( p < Dir.Length ) {
UDFDescriptor( &cached_dir[ p ], &TagID );
//printf("aaa TagID: %d, len: %d\n", TagID, Dir.Length);
if( TagID == 257 ) {
p += UDFFileIdentifier( &cached_dir[ p ], &filechar,
filename, &tmpICB );
if (filename[0] == '\0')
continue;
if (file_num + 1 > device->aloc_num)
{
device->aloc_num += 5;
device->file_name = realloc((void *)device->file_name, 256 * device->aloc_num);
}
//printf("add filename: '%s'\n", filename);
strncpy((char *)(device->file_name + file_num), filename, 256);
device->file_num = ++file_num;
} else {
return 0;
}
}
return 1;
}
if( DVDReadLBUDF( device->udf_data, lbnum, 2, directory, 0 ) <= 0 )
return 0;
p = 0;
while( p < Dir.Length ) {
if( p > DVD_VIDEO_LB_LEN ) {
++lbnum;
p -= DVD_VIDEO_LB_LEN;
Dir.Length -= DVD_VIDEO_LB_LEN;
if( DVDReadLBUDF( device->udf_data, lbnum, 2, directory, 0 ) <= 0 ) {
return 0;
}
}
UDFDescriptor( &directory[ p ], &TagID );
if( TagID == 257 ) {
p += UDFFileIdentifier( &directory[ p ], &filechar,
filename, FileICB );
//printf("filename2: %s\n", filename);
}
}
return 0;
}
/**
* Dir: Location of directory to scan
* FileName: Name of file to look for
* FileICB: Location of ICB of the found file
* return 1 on success, 0 on error;
*/
static int UDFScanDir( dvd_reader_t *device, struct AD Dir, char *FileName,
struct Partition *partition, struct AD *FileICB,
int cache_file_info)
{
char filename[ MAX_UDF_FILE_NAME_LEN ];
uint8_t directory_base[ 2 * DVD_VIDEO_LB_LEN + 2048];
uint8_t *directory = (uint8_t *)(((uintptr_t)directory_base & ~((uintptr_t)2047)) + 2048);
uint32_t lbnum;
uint16_t TagID;
uint8_t filechar;
unsigned int p;
uint8_t *cached_dir_base = NULL, *cached_dir;
uint32_t dir_lba;
struct AD tmpICB;
int found = 0;
int in_cache = 0;
/* Scan dir for ICB of file */
lbnum = partition->Start + Dir.Location;
if(DVDUDFCacheLevel(device, -1) > 0) {
/* caching */
if(!GetUDFCache(device, LBUDFCache, lbnum, &cached_dir)) {
dir_lba = (Dir.Length + DVD_VIDEO_LB_LEN) / DVD_VIDEO_LB_LEN;
if((cached_dir_base = malloc(dir_lba * DVD_VIDEO_LB_LEN + 2048)) == NULL)
return 0;
cached_dir = (uint8_t *)(((uintptr_t)cached_dir_base & ~((uintptr_t)2047)) + 2048);
if( DVDReadLBUDF( device, lbnum, dir_lba, cached_dir, 0) <= 0 ) {
free(cached_dir_base);
cached_dir_base = NULL;
cached_dir = NULL;
}
/*
if(cached_dir) {
fprintf(stderr, "malloc dir: %d\n", dir_lba * DVD_VIDEO_LB_LEN);
}
*/
{
uint8_t *data[2];
data[0] = cached_dir_base;
data[1] = cached_dir;
SetUDFCache(device, LBUDFCache, lbnum, data);
}
} else
in_cache = 1;
if(cached_dir == NULL) {
free(cached_dir_base);
return 0;
}
p = 0;
while( p < Dir.Length ) {
UDFDescriptor( &cached_dir[ p ], &TagID );
if( TagID == 257 ) {
p += UDFFileIdentifier( &cached_dir[ p ], &filechar,
filename, &tmpICB );
if(cache_file_info && !in_cache) {
uint8_t tmpFiletype;
struct AD tmpFile;
if( !strcasecmp( FileName, filename ) ) {
memcpy(FileICB, &tmpICB, sizeof(tmpICB));
found = 1;
}
UDFMapICB(device, tmpICB, &tmpFiletype, partition, &tmpFile);
} else {
if( !strcasecmp( FileName, filename ) ) {
memcpy(FileICB, &tmpICB, sizeof(tmpICB));
return 1;
}
}
} else {
if(cache_file_info && (!in_cache) && found)
return 1;
return 0;
}
}
if(cache_file_info && (!in_cache) && found)
return 1;
return 0;
}
if( DVDReadLBUDF( device, lbnum, 2, directory, 0 ) <= 0 )
return 0;
p = 0;
while( p < Dir.Length ) {
if( p > DVD_VIDEO_LB_LEN ) {
++lbnum;
p -= DVD_VIDEO_LB_LEN;
Dir.Length -= DVD_VIDEO_LB_LEN;
if( DVDReadLBUDF( device, lbnum, 2, directory, 0 ) <= 0 ) {
return 0;
}
}
UDFDescriptor( &directory[ p ], &TagID );
if( TagID == 257 ) {
p += UDFFileIdentifier( &directory[ p ], &filechar,
filename, FileICB );
if( !strcasecmp( FileName, filename ) ) {
return 1;
}
} else
return 0;
}
return 0;
}
/**
* Dir: Location of directory to scan
* FileName: Name of file to look for
* FileICB: Location of ICB of the found file
* return 1 on success, 0 on error;
*/
static int UDFScanDir( dvd_reader_t *device, struct AD Dir, char *FileName,
struct Partition *partition, struct AD *FileICB,
int cache_file_info)
{
char filename[ MAX_UDF_FILE_NAME_LEN ];
uint8_t *directory;
uint32_t lbnum;
uint16_t TagID;
uint8_t filechar;
unsigned int p;
uint8_t *cached_dir = NULL;
uint32_t dir_lba;
struct AD tmpICB;
int found = 0;
int in_cache = 0;
/* Scan dir for ICB of file */
lbnum = partition->Start + Dir.Location;
if(DVDUDFCacheLevel(device, -1) > 0) {
/* caching */
if(!GetUDFCache(device, LBUDFCache, lbnum, &cached_dir)) {
dir_lba = (Dir.Length + DVD_VIDEO_LB_LEN) / DVD_VIDEO_LB_LEN;
if((cached_dir = dvdalign_lbmalloc(device, dir_lba)) == NULL) {
return 0;
}
if( DVDReadLBUDF( device, lbnum, dir_lba, cached_dir, 0) <= 0 ) {
dvdalign_lbfree(device, cached_dir);
cached_dir = NULL;
}
SetUDFCache(device, LBUDFCache, lbnum, &cached_dir);
} else {
in_cache = 1;
}
if(cached_dir == NULL) {
return 0;
}
p = 0;
while( p < Dir.Length ) {
UDFDescriptor( &cached_dir[ p ], &TagID );
if( TagID == 257 ) {
p += UDFFileIdentifier( &cached_dir[ p ], &filechar,
filename, &tmpICB );
if(cache_file_info && !in_cache) {
uint8_t tmpFiletype;
struct AD tmpFile;
if( !strcasecmp( FileName, filename ) ) {
*FileICB = tmpICB;
found = 1;
}
UDFMapICB(device, tmpICB, &tmpFiletype,
partition, &tmpFile);
} else {
if( !strcasecmp( FileName, filename ) ) {
*FileICB = tmpICB;
return 1;
}
}
} else {
if(cache_file_info && (!in_cache) && found) {
return 1;
}
return 0;
}
}
if(cache_file_info && (!in_cache) && found) {
return 1;
}
return 0;
}
directory = dvdalign_lbmalloc(device, 2);
if(!directory) {
return 0;
}
if( DVDReadLBUDF( device, lbnum, 2, directory, 0 ) <= 0 ) {
dvdalign_lbfree(device, directory);
return 0;
}
p = 0;
while( p < Dir.Length ) {
if( p > DVD_VIDEO_LB_LEN ) {
++lbnum;
p -= DVD_VIDEO_LB_LEN;
Dir.Length -= DVD_VIDEO_LB_LEN;
if( DVDReadLBUDF( device, lbnum, 2, directory, 0 ) <= 0 ) {
dvdalign_lbfree(device, directory);
return 0;
}
}
UDFDescriptor( &directory[ p ], &TagID );
if( TagID == 257 ) {
p += UDFFileIdentifier( &directory[ p ], &filechar,
filename, FileICB );
if( !strcasecmp( FileName, filename ) ) {
dvdalign_lbfree(device, directory);
return 1;
}
} else {
dvdalign_lbfree(device, directory);
return 0;
}
}
dvdalign_lbfree(device, directory);
return 0;
}
