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76877b46 | 1 | #pragma once |
9eb977db KS |
2 | |
3 | /*** | |
4 | This file is part of systemd. | |
5 | ||
6 | Copyright 2010-2012 Lennart Poettering | |
7 | ||
8 | systemd is free software; you can redistribute it and/or modify it | |
9 | under the terms of the GNU Lesser General Public License as published by | |
10 | the Free Software Foundation; either version 2.1 of the License, or | |
11 | (at your option) any later version. | |
12 | ||
13 | systemd is distributed in the hope that it will be useful, but | |
14 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
16 | Lesser General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU Lesser General Public License | |
19 | along with systemd; If not, see <http://www.gnu.org/licenses/>. | |
20 | ***/ | |
21 | ||
11c3a366 | 22 | #include <alloca.h> |
44a6b1b6 | 23 | #include <stdbool.h> |
11c3a366 | 24 | #include <stddef.h> |
9eb977db | 25 | |
44a6b1b6 | 26 | #include "macro.h" |
a6f72863 | 27 | #include "string-util.h" |
8e184852 | 28 | #include "time-util.h" |
44a6b1b6 | 29 | |
e10a55fd SL |
30 | #define DEFAULT_PATH_NORMAL "/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin" |
31 | #define DEFAULT_PATH_SPLIT_USR DEFAULT_PATH_NORMAL ":/sbin:/bin" | |
32 | ||
349cc4a5 | 33 | #if HAVE_SPLIT_USR |
e10a55fd | 34 | # define DEFAULT_PATH DEFAULT_PATH_SPLIT_USR |
c9d954b2 | 35 | #else |
e10a55fd | 36 | # define DEFAULT_PATH DEFAULT_PATH_NORMAL |
c9d954b2 ZJS |
37 | #endif |
38 | ||
44a6b1b6 | 39 | bool is_path(const char *p) _pure_; |
0f474365 | 40 | int path_split_and_make_absolute(const char *p, char ***ret); |
44a6b1b6 ZJS |
41 | bool path_is_absolute(const char *p) _pure_; |
42 | char* path_make_absolute(const char *p, const char *prefix); | |
0f474365 | 43 | int path_make_absolute_cwd(const char *p, char **ret); |
7cb9c51c | 44 | int path_make_relative(const char *from_dir, const char *to_path, char **_r); |
44a6b1b6 ZJS |
45 | char* path_kill_slashes(char *path); |
46 | char* path_startswith(const char *path, const char *prefix) _pure_; | |
2230852b | 47 | int path_compare(const char *a, const char *b) _pure_; |
44a6b1b6 | 48 | bool path_equal(const char *a, const char *b) _pure_; |
e3f791a2 | 49 | bool path_equal_or_files_same(const char *a, const char *b, int flags); |
0c6ea3a4 | 50 | char* path_join(const char *root, const char *path, const char *rest); |
44a6b1b6 | 51 | |
24737c29 ZJS |
52 | static inline bool path_equal_ptr(const char *a, const char *b) { |
53 | return !!a == !!b && (!a || path_equal(a, b)); | |
54 | } | |
55 | ||
3ae5990c ZJS |
56 | /* Note: the search terminates on the first NULL item. */ |
57 | #define PATH_IN_SET(p, ...) \ | |
58 | ({ \ | |
59 | char **s; \ | |
60 | bool _found = false; \ | |
61 | STRV_FOREACH(s, STRV_MAKE(__VA_ARGS__)) \ | |
62 | if (path_equal(p, *s)) { \ | |
63 | _found = true; \ | |
64 | break; \ | |
65 | } \ | |
66 | _found; \ | |
67 | }) | |
68 | ||
ad2706db LP |
69 | #define PATH_STARTSWITH_SET(p, ...) \ |
70 | ({ \ | |
71 | char **s; \ | |
72 | bool _found = false; \ | |
73 | STRV_FOREACH(s, STRV_MAKE(__VA_ARGS__)) \ | |
74 | if (path_startswith(p, *s)) { \ | |
75 | _found = true; \ | |
76 | break; \ | |
77 | } \ | |
78 | _found; \ | |
79 | }) | |
80 | ||
0f474365 | 81 | int path_strv_make_absolute_cwd(char **l); |
e1873695 LP |
82 | char** path_strv_resolve(char **l, const char *root); |
83 | char** path_strv_resolve_uniq(char **l, const char *root); | |
9eb977db | 84 | |
85eca92e | 85 | int find_binary(const char *name, char **filename); |
fecffe5d | 86 | |
2ad8416d | 87 | bool paths_check_timestamp(const char* const* paths, usec_t *paths_ts_usec, bool update); |
8e184852 | 88 | |
eb66db55 | 89 | int fsck_exists(const char *fstype); |
5bcd08db | 90 | int mkfs_exists(const char *fstype); |
eb66db55 | 91 | |
e203f7c3 LP |
92 | /* Iterates through the path prefixes of the specified path, going up |
93 | * the tree, to root. Also returns "" (and not "/"!) for the root | |
94 | * directory. Excludes the specified directory itself */ | |
fecffe5d | 95 | #define PATH_FOREACH_PREFIX(prefix, path) \ |
4a690c47 | 96 | for (char *_slash = ({ path_kill_slashes(strcpy(prefix, path)); streq(prefix, "/") ? NULL : strrchr(prefix, '/'); }); _slash && ((*_slash = 0), true); _slash = strrchr((prefix), '/')) |
e203f7c3 LP |
97 | |
98 | /* Same as PATH_FOREACH_PREFIX but also includes the specified path itself */ | |
99 | #define PATH_FOREACH_PREFIX_MORE(prefix, path) \ | |
4a690c47 | 100 | for (char *_slash = ({ path_kill_slashes(strcpy(prefix, path)); if (streq(prefix, "/")) prefix[0] = 0; strrchr(prefix, 0); }); _slash && ((*_slash = 0), true); _slash = strrchr((prefix), '/')) |
1d13f648 LP |
101 | |
102 | char *prefix_root(const char *root, const char *path); | |
103 | ||
104 | /* Similar to prefix_root(), but returns an alloca() buffer, or | |
105 | * possibly a const pointer into the path parameter */ | |
106 | #define prefix_roota(root, path) \ | |
107 | ({ \ | |
108 | const char* _path = (path), *_root = (root), *_ret; \ | |
109 | char *_p, *_n; \ | |
110 | size_t _l; \ | |
111 | while (_path[0] == '/' && _path[1] == '/') \ | |
112 | _path ++; \ | |
113 | if (isempty(_root) || path_equal(_root, "/")) \ | |
114 | _ret = _path; \ | |
115 | else { \ | |
116 | _l = strlen(_root) + 1 + strlen(_path) + 1; \ | |
117 | _n = alloca(_l); \ | |
118 | _p = stpcpy(_n, _root); \ | |
119 | while (_p > _n && _p[-1] == '/') \ | |
120 | _p--; \ | |
121 | if (_path[0] != '/') \ | |
122 | *(_p++) = '/'; \ | |
123 | strcpy(_p, _path); \ | |
124 | _ret = _n; \ | |
125 | } \ | |
126 | _ret; \ | |
127 | }) | |
0f03c2a4 LP |
128 | |
129 | int parse_path_argument_and_warn(const char *path, bool suppress_root, char **arg); | |
5f311f8c LP |
130 | |
131 | char* dirname_malloc(const char *path); | |
bb15fafe LP |
132 | |
133 | bool filename_is_valid(const char *p) _pure_; | |
134 | bool path_is_safe(const char *p) _pure_; | |
a0956174 LP |
135 | |
136 | char *file_in_same_dir(const char *path, const char *filename); | |
137 | ||
55cdd057 | 138 | bool hidden_or_backup_file(const char *filename) _pure_; |
a0956174 LP |
139 | |
140 | bool is_device_path(const char *path); | |
3ccb8862 | 141 | bool is_deviceallow_pattern(const char *path); |
5a46d55f ZJS |
142 | |
143 | int systemd_installation_has_version(const char *root, unsigned minimal_version); | |
49bfc877 LP |
144 | |
145 | bool dot_or_dot_dot(const char *path); | |
a119ec7c LP |
146 | |
147 | static inline const char *skip_dev_prefix(const char *p) { | |
148 | const char *e; | |
149 | ||
150 | /* Drop any /dev prefix if there is any */ | |
151 | ||
152 | e = path_startswith(p, "/dev/"); | |
153 | ||
154 | return e ?: p; | |
155 | } |