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9eb977db KS |
1 | /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
2 | ||
76877b46 | 3 | #pragma once |
9eb977db KS |
4 | |
5 | /*** | |
6 | This file is part of systemd. | |
7 | ||
8 | Copyright 2010-2012 Lennart Poettering | |
9 | ||
10 | systemd is free software; you can redistribute it and/or modify it | |
11 | under the terms of the GNU Lesser General Public License as published by | |
12 | the Free Software Foundation; either version 2.1 of the License, or | |
13 | (at your option) any later version. | |
14 | ||
15 | systemd is distributed in the hope that it will be useful, but | |
16 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
18 | Lesser General Public License for more details. | |
19 | ||
20 | You should have received a copy of the GNU Lesser General Public License | |
21 | along with systemd; If not, see <http://www.gnu.org/licenses/>. | |
22 | ***/ | |
23 | ||
44a6b1b6 | 24 | #include <stdbool.h> |
9eb977db | 25 | |
44a6b1b6 | 26 | #include "macro.h" |
8e184852 | 27 | #include "time-util.h" |
44a6b1b6 | 28 | |
e10a55fd SL |
29 | #define DEFAULT_PATH_NORMAL "/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin" |
30 | #define DEFAULT_PATH_SPLIT_USR DEFAULT_PATH_NORMAL ":/sbin:/bin" | |
31 | ||
c9d954b2 | 32 | #ifdef HAVE_SPLIT_USR |
e10a55fd | 33 | # define DEFAULT_PATH DEFAULT_PATH_SPLIT_USR |
c9d954b2 | 34 | #else |
e10a55fd | 35 | # define DEFAULT_PATH DEFAULT_PATH_NORMAL |
c9d954b2 ZJS |
36 | #endif |
37 | ||
44a6b1b6 ZJS |
38 | bool is_path(const char *p) _pure_; |
39 | char** path_split_and_make_absolute(const char *p); | |
9eb977db | 40 | int path_get_parent(const char *path, char **parent); |
44a6b1b6 ZJS |
41 | bool path_is_absolute(const char *p) _pure_; |
42 | char* path_make_absolute(const char *p, const char *prefix); | |
43 | char* path_make_absolute_cwd(const char *p); | |
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_; |
c78e47a6 | 49 | bool path_equal_or_files_same(const char *a, const char *b); |
0c6ea3a4 | 50 | char* path_join(const char *root, const char *path, const char *rest); |
44a6b1b6 ZJS |
51 | |
52 | char** path_strv_make_absolute_cwd(char **l); | |
7d8da2c9 MM |
53 | char** path_strv_resolve(char **l, const char *prefix); |
54 | char** path_strv_resolve_uniq(char **l, const char *prefix); | |
9eb977db | 55 | |
5d409034 | 56 | int fd_is_mount_point(int fd, const char *filename, int flags); |
e26d6ce5 | 57 | int path_is_mount_point(const char *path, int flags); |
9eb977db | 58 | int path_is_read_only_fs(const char *path); |
66060897 | 59 | int path_is_os_tree(const char *path); |
c9d954b2 | 60 | |
b63bd109 | 61 | int find_binary(const char *name, bool local, char **filename); |
fecffe5d | 62 | |
2ad8416d | 63 | bool paths_check_timestamp(const char* const* paths, usec_t *paths_ts_usec, bool update); |
8e184852 | 64 | |
eb66db55 | 65 | int fsck_exists(const char *fstype); |
5bcd08db | 66 | int mkfs_exists(const char *fstype); |
eb66db55 | 67 | |
e203f7c3 LP |
68 | /* Iterates through the path prefixes of the specified path, going up |
69 | * the tree, to root. Also returns "" (and not "/"!) for the root | |
70 | * directory. Excludes the specified directory itself */ | |
fecffe5d | 71 | #define PATH_FOREACH_PREFIX(prefix, path) \ |
4a690c47 | 72 | for (char *_slash = ({ path_kill_slashes(strcpy(prefix, path)); streq(prefix, "/") ? NULL : strrchr(prefix, '/'); }); _slash && ((*_slash = 0), true); _slash = strrchr((prefix), '/')) |
e203f7c3 LP |
73 | |
74 | /* Same as PATH_FOREACH_PREFIX but also includes the specified path itself */ | |
75 | #define PATH_FOREACH_PREFIX_MORE(prefix, path) \ | |
4a690c47 | 76 | 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 |
77 | |
78 | char *prefix_root(const char *root, const char *path); | |
79 | ||
80 | /* Similar to prefix_root(), but returns an alloca() buffer, or | |
81 | * possibly a const pointer into the path parameter */ | |
82 | #define prefix_roota(root, path) \ | |
83 | ({ \ | |
84 | const char* _path = (path), *_root = (root), *_ret; \ | |
85 | char *_p, *_n; \ | |
86 | size_t _l; \ | |
87 | while (_path[0] == '/' && _path[1] == '/') \ | |
88 | _path ++; \ | |
89 | if (isempty(_root) || path_equal(_root, "/")) \ | |
90 | _ret = _path; \ | |
91 | else { \ | |
92 | _l = strlen(_root) + 1 + strlen(_path) + 1; \ | |
93 | _n = alloca(_l); \ | |
94 | _p = stpcpy(_n, _root); \ | |
95 | while (_p > _n && _p[-1] == '/') \ | |
96 | _p--; \ | |
97 | if (_path[0] != '/') \ | |
98 | *(_p++) = '/'; \ | |
99 | strcpy(_p, _path); \ | |
100 | _ret = _n; \ | |
101 | } \ | |
102 | _ret; \ | |
103 | }) |