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libblkid: (vfat) add more debug messages 

Signed-off-by: Karel Zak <kzak@redhat.com>
This commit is contained in:
Karel Zak 2017-06-09 11:11:38 +02:00
parent 11573ac0c8
commit bff78d701d
1 changed files with 8 additions and 2 deletions
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10
libblkid/src/superblocks/vfat.c
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@ -197,8 +197,10 @@ static int fat_valid_superblock(blkid_probe pr,
* FAT-like pseudo-header.
*/
if ((memcmp(ms->ms_magic, "JFS ", 8) == 0) ||
(memcmp(ms->ms_magic, "HPFS ", 8) == 0))
(memcmp(ms->ms_magic, "HPFS ", 8) == 0)) {
DBG(LOWPROBE, ul_debug("\tJFS/HPFS detected"));
return 0;
}
}
/* fat counts(Linux kernel expects at least 1 FAT table) */
@ -252,11 +254,15 @@ static int fat_valid_superblock(blkid_probe pr,
* etc..) before MBR. Let's make sure that there is no MBR with
* usable partition. */
unsigned char *buf = (unsigned char *) ms;
if (mbr_is_valid_magic(buf)) {
struct dos_partition *p0 = mbr_get_partition(buf, 0);
if (dos_partition_get_size(p0) != 0 &&
(p0->boot_ind == 0 || p0->boot_ind == 0x80))
(p0->boot_ind == 0 || p0->boot_ind == 0x80)) {
DBG(LOWPROBE, ul_debug("\tMBR detected"));
return 0;
}
}
}