1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
6 This file is part of systemd.
8 Copyright 2010-2012 Lennart Poettering
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.
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.
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/>.
27 #include "time-util.h"
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"
33 # define DEFAULT_PATH DEFAULT_PATH_SPLIT_USR
35 # define DEFAULT_PATH DEFAULT_PATH_NORMAL
38 bool is_path(const char *p) _pure_;
39 /// UNNEEDED by elogind
41 int path_split_and_make_absolute(const char *p, char ***ret);
43 bool path_is_absolute(const char *p) _pure_;
44 /// UNNEEDED by elogind
46 char* path_make_absolute(const char *p, const char *prefix);
48 int path_make_absolute_cwd(const char *p, char **ret);
49 /// UNNEEDED by elogind
51 int path_make_relative(const char *from_dir, const char *to_path, char **_r);
53 char* path_kill_slashes(char *path);
54 char* path_startswith(const char *path, const char *prefix) _pure_;
55 int path_compare(const char *a, const char *b) _pure_;
56 bool path_equal(const char *a, const char *b) _pure_;
57 bool path_equal_or_files_same(const char *a, const char *b);
58 /// UNNEEDED by elogind
60 char* path_join(const char *root, const char *path, const char *rest);
62 int path_strv_make_absolute_cwd(char **l);
64 char** path_strv_resolve(char **l, const char *prefix);
65 char** path_strv_resolve_uniq(char **l, const char *prefix);
67 /// UNNEEDED by elogind
69 int find_binary(const char *name, char **filename);
71 bool paths_check_timestamp(const char* const* paths, usec_t *paths_ts_usec, bool update);
73 int fsck_exists(const char *fstype);
74 int mkfs_exists(const char *fstype);
77 /* Iterates through the path prefixes of the specified path, going up
78 * the tree, to root. Also returns "" (and not "/"!) for the root
79 * directory. Excludes the specified directory itself */
80 #define PATH_FOREACH_PREFIX(prefix, path) \
81 for (char *_slash = ({ path_kill_slashes(strcpy(prefix, path)); streq(prefix, "/") ? NULL : strrchr(prefix, '/'); }); _slash && ((*_slash = 0), true); _slash = strrchr((prefix), '/'))
83 /* Same as PATH_FOREACH_PREFIX but also includes the specified path itself */
84 #define PATH_FOREACH_PREFIX_MORE(prefix, path) \
85 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), '/'))
87 char *prefix_root(const char *root, const char *path);
89 /* Similar to prefix_root(), but returns an alloca() buffer, or
90 * possibly a const pointer into the path parameter */
91 #define prefix_roota(root, path) \
93 const char* _path = (path), *_root = (root), *_ret; \
96 while (_path[0] == '/' && _path[1] == '/') \
98 if (isempty(_root) || path_equal(_root, "/")) \
101 _l = strlen(_root) + 1 + strlen(_path) + 1; \
103 _p = stpcpy(_n, _root); \
104 while (_p > _n && _p[-1] == '/') \
106 if (_path[0] != '/') \
114 /// UNNEEDED by elogind
116 int parse_path_argument_and_warn(const char *path, bool suppress_root, char **arg);
119 char* dirname_malloc(const char *path);
121 bool filename_is_valid(const char *p) _pure_;
122 bool path_is_safe(const char *p) _pure_;
124 char *file_in_same_dir(const char *path, const char *filename);
126 bool hidden_file_allow_backup(const char *filename);
127 bool hidden_file(const char *filename) _pure_;
129 /// UNNEEDED by elogind
131 bool is_device_path(const char *path);