4 This file is part of systemd.
6 Copyright 2010-2012 Lennart Poettering
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.
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.
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/>.
27 #include "string-util.h"
28 #include "time-util.h"
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"
34 # define DEFAULT_PATH DEFAULT_PATH_SPLIT_USR
36 # define DEFAULT_PATH DEFAULT_PATH_NORMAL
39 bool is_path(const char *p) _pure_;
40 #if 0 /// 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 #if 0 /// UNNEEDED by elogind
45 char* path_make_absolute(const char *p, const char *prefix);
47 int path_make_absolute_cwd(const char *p, char **ret);
48 #if 0 /// UNNEEDED by elogind
49 int path_make_relative(const char *from_dir, const char *to_path, char **_r);
51 char* path_kill_slashes(char *path);
52 char* path_startswith(const char *path, const char *prefix) _pure_;
53 int path_compare(const char *a, const char *b) _pure_;
54 bool path_equal(const char *a, const char *b) _pure_;
55 bool path_equal_or_files_same(const char *a, const char *b);
56 #if 0 /// UNNEEDED by elogind
57 char* path_join(const char *root, const char *path, const char *rest);
59 static inline bool path_equal_ptr(const char *a, const char *b) {
60 return !!a == !!b && (!a || path_equal(a, b));
64 /* Note: the search terminates on the first NULL item. */
65 #define PATH_IN_SET(p, ...) \
68 bool _found = false; \
69 STRV_FOREACH(s, STRV_MAKE(__VA_ARGS__)) \
70 if (path_equal(p, *s)) { \
77 #if 0 /// UNNEEDED by elogind
78 #define PATH_STARTSWITH_SET(p, ...) \
81 bool _found = false; \
82 STRV_FOREACH(s, STRV_MAKE(__VA_ARGS__)) \
83 if (path_startswith(p, *s)) { \
90 int path_strv_make_absolute_cwd(char **l);
92 char** path_strv_resolve(char **l, const char *root);
93 char** path_strv_resolve_uniq(char **l, const char *root);
95 #if 0 /// UNNEEDED by elogind
96 int find_binary(const char *name, char **filename);
98 bool paths_check_timestamp(const char* const* paths, usec_t *paths_ts_usec, bool update);
100 int fsck_exists(const char *fstype);
101 int mkfs_exists(const char *fstype);
104 /* Iterates through the path prefixes of the specified path, going up
105 * the tree, to root. Also returns "" (and not "/"!) for the root
106 * directory. Excludes the specified directory itself */
107 #define PATH_FOREACH_PREFIX(prefix, path) \
108 for (char *_slash = ({ path_kill_slashes(strcpy(prefix, path)); streq(prefix, "/") ? NULL : strrchr(prefix, '/'); }); _slash && ((*_slash = 0), true); _slash = strrchr((prefix), '/'))
110 /* Same as PATH_FOREACH_PREFIX but also includes the specified path itself */
111 #define PATH_FOREACH_PREFIX_MORE(prefix, path) \
112 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), '/'))
114 char *prefix_root(const char *root, const char *path);
116 /* Similar to prefix_root(), but returns an alloca() buffer, or
117 * possibly a const pointer into the path parameter */
118 #define prefix_roota(root, path) \
120 const char* _path = (path), *_root = (root), *_ret; \
123 while (_path[0] == '/' && _path[1] == '/') \
125 if (isempty(_root) || path_equal(_root, "/")) \
128 _l = strlen(_root) + 1 + strlen(_path) + 1; \
130 _p = stpcpy(_n, _root); \
131 while (_p > _n && _p[-1] == '/') \
133 if (_path[0] != '/') \
141 #if 0 /// UNNEEDED by elogind
142 int parse_path_argument_and_warn(const char *path, bool suppress_root, char **arg);
145 char* dirname_malloc(const char *path);
147 bool filename_is_valid(const char *p) _pure_;
148 bool path_is_safe(const char *p) _pure_;
150 char *file_in_same_dir(const char *path, const char *filename);
152 bool hidden_or_backup_file(const char *filename) _pure_;
154 #if 0 /// UNNEEDED by elogind
155 bool is_device_path(const char *path);
156 bool is_deviceallow_pattern(const char *path);
158 int systemd_installation_has_version(const char *root, unsigned minimal_version);