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Catch and print any errors when unmounting filesystems at reboot

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Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
This commit is contained in:
Joachim Wiberg
2022-04-12 21:45:37 +02:00
parent cfc99c4e8b
commit 5adb92ca1b
1 changed files with 16 additions and 2 deletions
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src/mount.c
+16 -2
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@@ -21,10 +21,13 @@
* THE SOFTWARE.
*/
#include <errno.h>
#include <string.h>
#include <mntent.h>
#include <sys/mount.h>
#include "helpers.h"
/*
* SysV init on Debian/Ubuntu skips these protected mount points
*
@@ -86,13 +89,24 @@ static struct mntent *iterator(char *fstab, FILE **fp)
return NULL;
}
static int unmount(const char *target)
{
int rc;
rc = umount(target);
if (rc)
print(2, "Failed unmounting %s, error %d: %s", target, errno, strerror(errno));
return rc;
}
void unmount_tmpfs(void)
{
struct mntent *mnt;
FILE *fp = NULL;
while ((mnt = iterator("/proc/mounts", &fp))) {
if (!strcmp("tmpfs", mnt->mnt_fsname) && !umount(mnt->mnt_dir))
if (!strcmp("tmpfs", mnt->mnt_fsname) && !unmount(mnt->mnt_dir))
iterator_end(&fp); /* Restart iteration */
}
}
@@ -103,7 +117,7 @@ void unmount_regular(void)
FILE *fp = NULL;
while ((mnt = iterator("/proc/mounts", &fp))) {
if (!umount(mnt->mnt_dir))
if (!unmount(mnt->mnt_dir))
iterator_end(&fp); /* Restart iteration */
}
}