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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 15:35:18 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 15:35:18 +0000 |
commit | b750101eb236130cf056c675997decbac904cc49 (patch) | |
tree | a5df1a06754bdd014cb975c051c83b01c9a97532 /src/shared/libmount-util.h | |
parent | Initial commit. (diff) | |
download | systemd-upstream.tar.xz systemd-upstream.zip |
Adding upstream version 252.22.upstream/252.22upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | src/shared/libmount-util.h | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/src/shared/libmount-util.h b/src/shared/libmount-util.h new file mode 100644 index 0000000..cf19c56 --- /dev/null +++ b/src/shared/libmount-util.h @@ -0,0 +1,47 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ +#pragma once + +#include <stdio.h> + +/* This needs to be after sys/mount.h */ +#include <libmount.h> + +#include "macro.h" + +DEFINE_TRIVIAL_CLEANUP_FUNC_FULL(struct libmnt_table*, mnt_free_table, NULL); +DEFINE_TRIVIAL_CLEANUP_FUNC_FULL(struct libmnt_iter*, mnt_free_iter, NULL); + +static inline int libmount_parse( + const char *path, + FILE *source, + struct libmnt_table **ret_table, + struct libmnt_iter **ret_iter) { + + _cleanup_(mnt_free_tablep) struct libmnt_table *table = NULL; + _cleanup_(mnt_free_iterp) struct libmnt_iter *iter = NULL; + int r; + + /* Older libmount seems to require this. */ + assert(!source || path); + + table = mnt_new_table(); + iter = mnt_new_iter(MNT_ITER_FORWARD); + if (!table || !iter) + return -ENOMEM; + + /* If source or path are specified, we use on the functions which ignore utab. + * Only if both are empty, we use mnt_table_parse_mtab(). */ + + if (source) + r = mnt_table_parse_stream(table, source, path); + else if (path) + r = mnt_table_parse_file(table, path); + else + r = mnt_table_parse_mtab(table, NULL); + if (r < 0) + return r; + + *ret_table = TAKE_PTR(table); + *ret_iter = TAKE_PTR(iter); + return 0; +} |