commit 04f087ec didn't take into consideration that mnt_fs_get_target()
could return an error, and would therefore show false positives, such
as:
$ mkdir foo; mountpoint foo
foo is a mountpoint
Signed-off-by: Dave Reisner <dreisner@archlinux.org>
zhi@debian-lizhi:~$ mountpoint /sys
/sys is not a mountpoint
zhi@debian-lizhi:~$
The problem is in mountpoint.c, function dir_to_device(), which uses 0 as an
error return value, but for sysfs 0 is its device number:
zhi@debian-lizhi:~$ cat /proc/self/mountinfo
14 19 0:0 / /sys rw,nosuid,nodev,noexec,relatime - sysfs none rw
15 19 0:3 / /proc rw,nosuid,nodev,noexec,relatime - proc none rw
My change is on dir_to_device, seperating device number from return value.
Signed-off-by: Zhi Li <lizhi1215@gmail.com>
There's only one condition for which we declare success, but many for
failure. Initialize rc as failure and set to success on this single
condition. In all cases, jump to a label to exit instead of exiting
immediately. This will be used later on to ease cleanup of any heap
allocations.
Signed-off-by: Dave Reisner <dreisner@archlinux.org>
Signed-off-by: Karel Zak <kzak@redhat.com>
The string returned from this function was never of much use other than
to stat the path when the user requested a major:minor pair beyond the
true/false exit. Save some processing and directly returning the dev_t
on success, and an impossible value on failure.
[kzak@redhat.com: - use 0 as dir_to_device() return value on failure]
Signed-off-by: Dave Reisner <dreisner@archlinux.org>
Signed-off-by: Karel Zak <kzak@redhat.com>
This is libmount based re-implementation of the mountpoint(1) command.
The original implementation is maintained in sysvinit suite.
The mountpoint(1) in util-linux is not enabled by default (for now) --
use --enable-mountpoint to enable the util.
Signed-off-by: Karel Zak <kzak@redhat.com>
2011-06-21 11:46:36 +02:00
Renamed from libmount/samples/mountpoint.c (Browse further)
