mirror of
https://github.com/Fledge68/WiiFlow_Lite.git
synced 2024-12-18 16:01:57 +01:00
30bc03c9fa
-updated libext2fs to e2fsprogs 1.42 -updated libfat to R4883 Thanks to USB Loader GX for the new libs
64 lines
1.4 KiB
C
64 lines
1.4 KiB
C
#include "fatfile.h"
|
|
|
|
#include <fcntl.h>
|
|
#include <string.h>
|
|
#include <errno.h>
|
|
#include <ctype.h>
|
|
#include <unistd.h>
|
|
|
|
#include "cache.h"
|
|
#include "file_allocation_table.h"
|
|
#include "bit_ops.h"
|
|
#include "filetime.h"
|
|
#include "lock.h"
|
|
#include "fatfile_frag.h"
|
|
|
|
int _FAT_get_fragments (const char *path, _fat_frag_append_t append_fragment, void *callback_data)
|
|
{
|
|
struct _reent r;
|
|
FILE_STRUCT file;
|
|
PARTITION* partition;
|
|
u32 cluster;
|
|
u32 sector;
|
|
u32 offset; // in sectors
|
|
u32 size; // in sectors
|
|
int ret = -1;
|
|
int fd;
|
|
|
|
fd = _FAT_open_r (&r, &file, path, O_RDONLY, 0);
|
|
if (fd == -1) return -1;
|
|
if (fd != (int)&file) return -1;
|
|
|
|
partition = file.partition;
|
|
_FAT_lock(&partition->lock);
|
|
|
|
size = file.filesize / partition->bytesPerSector;
|
|
cluster = file.startCluster;
|
|
offset = 0;
|
|
|
|
do {
|
|
if (!_FAT_fat_isValidCluster(partition, cluster)) {
|
|
// invalid cluster
|
|
goto out;
|
|
}
|
|
// add cluster to fileinfo
|
|
sector = _FAT_fat_clusterToSector(partition, cluster);
|
|
if (append_fragment(callback_data, offset, sector, partition->sectorsPerCluster)) {
|
|
// too many fragments
|
|
goto out;
|
|
}
|
|
offset += partition->sectorsPerCluster;
|
|
cluster = _FAT_fat_nextCluster (partition, cluster);
|
|
} while (offset < size);
|
|
|
|
// set size
|
|
append_fragment(callback_data, size, 0, 0);
|
|
// success
|
|
ret = 0;
|
|
|
|
out:
|
|
_FAT_unlock(&partition->lock);
|
|
_FAT_close_r(&r, fd);
|
|
return ret;
|
|
}
|