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Add support for detecting FAT32 volume labels.

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git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@24996 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Michael Lotz 2008-04-17 10:04:12 +00:00
parent b8c45ca140
commit ba575e420d
1 changed files with 8 additions and 3 deletions
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9
src/add-ons/kernel/file_systems/fat/dosfs.c
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@ -626,6 +626,12 @@ dosfs_identify_partition(int fd, partition_data *partition, void **_cookie)
sectors_per_fat = read16(buf,0x16);
if (sectors_per_fat == 0) {
total_sectors = read32(buf,0x20);
if (buf[0x42] == 0x29) {
// fill in FAT32 volume label
if (memcmp(buf + 0x47, " ", 11) != 0)
memcpy(name, buf + 0x47, 11);
}
} else {
total_sectors = read16(buf,0x13); // partition size
if (total_sectors == 0)
@ -633,11 +639,10 @@ dosfs_identify_partition(int fd, partition_data *partition, void **_cookie)
if (buf[0x26] == 0x29) {
// fill in the volume label
if (memcmp(buf+0x2b, " ", 11)) {
if (memcmp(buf + 0x2b, " ", 11) != 0)
memcpy(name, buf + 0x2b, 11);
}
}
}
cookie = (identify_cookie *)malloc(sizeof(identify_cookie));
if (!cookie)