mount: handle list of comma-separated fs types in -t option

Allows one to specify list of filesystem types to be
tried when mounting particular device. E.g.

 mount -t vfat,ext2 ...
Signed-off-by: Karol Lewandowski <k.lewandowsk@samsung.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Karol Lewandowski 2011-11-03 10:02:31 +01:00 committed by Denys Vlasenko
parent f85554c265
commit b5ebe5fdb3

View File

@ -38,7 +38,7 @@
//usage: )
//usage: "\n -r Read-only mount"
//usage: "\n -w Read-write mount (default)"
//usage: "\n -t FSTYPE Filesystem type"
//usage: "\n -t FSTYPE[,...] Filesystem type(s)"
//usage: "\n -O OPT Mount only filesystems with option OPT (-a only)"
//usage: "\n-o OPT:"
//usage: IF_FEATURE_MOUNT_LOOP(
@ -1827,7 +1827,16 @@ static int singlemount(struct mntent *mp, int ignore_busy)
// If we know the fstype (or don't need to), jump straight
// to the actual mount.
if (mp->mnt_type || (vfsflags & (MS_REMOUNT | MS_BIND | MS_MOVE))) {
rc = mount_it_now(mp, vfsflags, filteropts);
char *next;
for (;;) {
next = mp->mnt_type ? strchr(mp->mnt_type, ',') : NULL;
if (next)
*next = '\0';
rc = mount_it_now(mp, vfsflags, filteropts);
if (rc == 0 || !next)
break;
mp->mnt_type = next + 1;
}
} else {
// Loop through filesystem types until mount succeeds
// or we run out
@ -1844,7 +1853,7 @@ static int singlemount(struct mntent *mp, int ignore_busy)
for (fl = fslist; fl; fl = fl->link) {
mp->mnt_type = fl->data;
rc = mount_it_now(mp, vfsflags, filteropts);
if (!rc)
if (rc == 0)
break;
}
}