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53e1b683 | 1 | /* SPDX-License-Identifier: LGPL-2.1+ */ |
8fcde012 LP |
2 | #pragma once |
3 | ||
4 | /*** | |
5 | This file is part of systemd. | |
6 | ||
7 | Copyright 2010-2012 Lennart Poettering | |
8 | ||
9 | systemd is free software; you can redistribute it and/or modify it | |
10 | under the terms of the GNU Lesser General Public License as published by | |
11 | the Free Software Foundation; either version 2.1 of the License, or | |
12 | (at your option) any later version. | |
13 | ||
14 | systemd is distributed in the hope that it will be useful, but | |
15 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
17 | Lesser General Public License for more details. | |
18 | ||
19 | You should have received a copy of the GNU Lesser General Public License | |
20 | along with systemd; If not, see <http://www.gnu.org/licenses/>. | |
21 | ***/ | |
22 | ||
23 | #include <stdbool.h> | |
11c3a366 | 24 | #include <stddef.h> |
8fcde012 | 25 | #include <sys/stat.h> |
11c3a366 | 26 | #include <sys/statfs.h> |
4e036b7a | 27 | #include <sys/types.h> |
8fcde012 LP |
28 | #include <sys/vfs.h> |
29 | ||
30 | #include "macro.h" | |
31 | ||
32 | int is_symlink(const char *path); | |
33 | int is_dir(const char *path, bool follow); | |
34 | int is_device_node(const char *path); | |
35 | ||
36 | int dir_is_empty(const char *path); | |
37 | ||
38 | static inline int dir_is_populated(const char *path) { | |
39 | int r; | |
40 | r = dir_is_empty(path); | |
41 | if (r < 0) | |
42 | return r; | |
43 | return !r; | |
44 | } | |
45 | ||
46 | bool null_or_empty(struct stat *st) _pure_; | |
47 | int null_or_empty_path(const char *fn); | |
48 | int null_or_empty_fd(int fd); | |
49 | ||
50 | int path_is_read_only_fs(const char *path); | |
51 | int path_is_os_tree(const char *path); | |
52 | ||
e3f791a2 | 53 | int files_same(const char *filea, const char *fileb, int flags); |
8fcde012 LP |
54 | |
55 | /* The .f_type field of struct statfs is really weird defined on | |
d6cd0846 HG |
56 | * different archs. Let's give its type a name. */ |
57 | typedef typeof(((struct statfs*)NULL)->f_type) statfs_f_type_t; | |
8fcde012 LP |
58 | |
59 | bool is_fs_type(const struct statfs *s, statfs_f_type_t magic_value) _pure_; | |
60 | int fd_check_fstype(int fd, statfs_f_type_t magic_value); | |
61 | int path_check_fstype(const char *path, statfs_f_type_t magic_value); | |
62 | ||
63 | bool is_temporary_fs(const struct statfs *s) _pure_; | |
64 | int fd_is_temporary_fs(int fd); | |
ffeb8285 | 65 | int path_is_temporary_fs(const char *path); |
872a590e LP |
66 | |
67 | /* Because statfs.t_type can be int on some architectures, we have to cast | |
68 | * the const magic to the type, otherwise the compiler warns about | |
69 | * signed/unsigned comparison, because the magic can be 32 bit unsigned. | |
70 | */ | |
71 | #define F_TYPE_EQUAL(a, b) (a == (typeof(a)) b) |