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/*
* Copyright (C) 2023 Karel Zak <kzak@redhat.com>
*
* This file may be redistributed under the terms of the
* GNU Lesser General Public License.
*
*
* This sample reads the mountpoint entry from /etc/fstab and mounts it to the
* different (on the command line specified) mountpoint. The mount options
* settings are read from fstab.
*/
#include <stdlib.h>
#include "c.h"
#include "libmount.h"
int main(int argc, char *argv[])
{
char *target, *fstab_target;
struct libmnt_table *tab;
struct libmnt_fs *fs;
struct libmnt_context *cxt;
int rc;
if (argc != 3)
errx(EXIT_FAILURE, "usage: %s <mnt-from-fstab> <target>",
program_invocation_short_name);
fstab_target = argv[1];
target = argv[2];
printf("Mounting %s from fstab to %s\n", fstab_target, target);
tab = mnt_new_table_from_file("/etc/fstab");
if (!tab)
err(EXIT_FAILURE, "failed to parse fstab");
fs = mnt_table_find_target(tab, fstab_target, MNT_ITER_FORWARD);
if (!fs)
err(EXIT_FAILURE, "cannot found %s in fstab", argv[1]);
cxt = mnt_new_context();
if (!cxt)
err(EXIT_FAILURE, "cannot allocate context");
mnt_context_set_fs(cxt, fs);
mnt_context_set_target(cxt, target);
rc = mnt_context_mount(cxt);
printf("Done: rc=%d status=%d\n", rc, mnt_context_get_status(cxt));
mnt_free_context(cxt);
mnt_unref_table(tab);
return rc == 0 && mnt_context_get_status(cxt) == 1 ? EXIT_SUCCESS : EXIT_FAILURE;
}
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