diff options
Diffstat (limited to 'src/shared/libmount-util.h')
-rw-r--r-- | src/shared/libmount-util.h | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/src/shared/libmount-util.h b/src/shared/libmount-util.h index 7d94468e52..7c3b855df5 100644 --- a/src/shared/libmount-util.h +++ b/src/shared/libmount-util.h @@ -1,6 +1,8 @@ /* SPDX-License-Identifier: LGPL-2.1+ */ #pragma once +#include <stdio.h> + /* This needs to be after sys/mount.h */ #include <libmount.h> @@ -8,3 +10,38 @@ DEFINE_TRIVIAL_CLEANUP_FUNC(struct libmnt_table*, mnt_free_table); DEFINE_TRIVIAL_CLEANUP_FUNC(struct libmnt_iter*, mnt_free_iter); + +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; +} |