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remove bogus FAT check

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This commit is contained in:
Dave Murphy 2010-09-03 18:52:49 +00:00
parent 247aa36062
commit 5f29cee9cb
1 changed files with 1 additions and 8 deletions
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9
source/partition.c
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@ -163,7 +163,7 @@ PARTITION* _FAT_partition_constructor (const DISC_INTERFACE* disc, uint32_t cach
if (!_FAT_disc_readSectors (disc, startSector, 1, sectorBuffer)) { if (!_FAT_disc_readSectors (disc, startSector, 1, sectorBuffer)) {
return NULL; return NULL;
} }
// Make sure it is a valid MBR or boot sector // Make sure it is a valid MBR or boot sector
if ( (sectorBuffer[BPB_bootSig_55] != 0x55) || (sectorBuffer[BPB_bootSig_AA] != 0xAA)) { if ( (sectorBuffer[BPB_bootSig_55] != 0x55) || (sectorBuffer[BPB_bootSig_AA] != 0xAA)) {
return NULL; return NULL;
@ -191,13 +191,6 @@ PARTITION* _FAT_partition_constructor (const DISC_INTERFACE* disc, uint32_t cach
return NULL; return NULL;
} }
// check again for the last two cases to make sure that we really have a FAT filesystem here
// and won't corrupt any data
if(memcmp(sectorBuffer + BPB_FAT16_fileSysType, "FAT", 3) != 0 && memcmp(sectorBuffer + BPB_FAT32_fileSysType, "FAT32", 5) != 0)
{
return NULL;
}
partition = (PARTITION*) _FAT_mem_allocate (sizeof(PARTITION)); partition = (PARTITION*) _FAT_mem_allocate (sizeof(PARTITION));
if (partition == NULL) { if (partition == NULL) {
return NULL; return NULL;