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