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53e1b683 | 1 | /* SPDX-License-Identifier: LGPL-2.1+ */ |
76877b46 | 2 | #pragma once |
9eb977db | 3 | |
11c3a366 | 4 | #include <alloca.h> |
44a6b1b6 | 5 | #include <stdbool.h> |
11c3a366 | 6 | #include <stddef.h> |
9eb977db | 7 | |
44a6b1b6 | 8 | #include "macro.h" |
a6f72863 | 9 | #include "string-util.h" |
8e184852 | 10 | #include "time-util.h" |
44a6b1b6 | 11 | |
0c300adf LP |
12 | #define PATH_SPLIT_SBIN_BIN(x) x "sbin:" x "bin" |
13 | #define PATH_SPLIT_SBIN_BIN_NULSTR(x) x "sbin\0" x "bin\0" | |
14 | ||
15 | #define PATH_NORMAL_SBIN_BIN(x) x "bin" | |
16 | #define PATH_NORMAL_SBIN_BIN_NULSTR(x) x "bin\0" | |
17 | ||
671f0f8d | 18 | #if HAVE_SPLIT_BIN |
0c300adf LP |
19 | # define PATH_SBIN_BIN(x) PATH_SPLIT_SBIN_BIN(x) |
20 | # define PATH_SBIN_BIN_NULSTR(x) PATH_SPLIT_SBIN_BIN_NULSTR(x) | |
671f0f8d | 21 | #else |
0c300adf LP |
22 | # define PATH_SBIN_BIN(x) PATH_NORMAL_SBIN_BIN(x) |
23 | # define PATH_SBIN_BIN_NULSTR(x) PATH_NORMAL_SBIN_BIN_NULSTR(x) | |
671f0f8d ZJS |
24 | #endif |
25 | ||
26 | #define DEFAULT_PATH_NORMAL PATH_SBIN_BIN("/usr/local/") ":" PATH_SBIN_BIN("/usr/") | |
2259e8fb | 27 | #define DEFAULT_PATH_NORMAL_NULSTR PATH_SBIN_BIN_NULSTR("/usr/local/") PATH_SBIN_BIN_NULSTR("/usr/") |
671f0f8d | 28 | #define DEFAULT_PATH_SPLIT_USR DEFAULT_PATH_NORMAL ":" PATH_SBIN_BIN("/") |
2259e8fb | 29 | #define DEFAULT_PATH_SPLIT_USR_NULSTR DEFAULT_PATH_NORMAL_NULSTR PATH_SBIN_BIN_NULSTR("/") |
0c300adf | 30 | #define DEFAULT_PATH_COMPAT PATH_SPLIT_SBIN_BIN("/usr/local/") ":" PATH_SPLIT_SBIN_BIN("/usr/") ":" PATH_SPLIT_SBIN_BIN("/") |
e10a55fd | 31 | |
349cc4a5 | 32 | #if HAVE_SPLIT_USR |
e10a55fd | 33 | # define DEFAULT_PATH DEFAULT_PATH_SPLIT_USR |
2259e8fb | 34 | # define DEFAULT_PATH_NULSTR DEFAULT_PATH_SPLIT_USR_NULSTR |
c9d954b2 | 35 | #else |
e10a55fd | 36 | # define DEFAULT_PATH DEFAULT_PATH_NORMAL |
2259e8fb | 37 | # define DEFAULT_PATH_NULSTR DEFAULT_PATH_NORMAL_NULSTR |
c9d954b2 ZJS |
38 | #endif |
39 | ||
44a6b1b6 | 40 | bool is_path(const char *p) _pure_; |
0f474365 | 41 | int path_split_and_make_absolute(const char *p, char ***ret); |
44a6b1b6 ZJS |
42 | bool path_is_absolute(const char *p) _pure_; |
43 | char* path_make_absolute(const char *p, const char *prefix); | |
a2556d25 | 44 | int safe_getcwd(char **ret); |
0f474365 | 45 | int path_make_absolute_cwd(const char *p, char **ret); |
7cb9c51c | 46 | int path_make_relative(const char *from_dir, const char *to_path, char **_r); |
44a6b1b6 | 47 | char* path_startswith(const char *path, const char *prefix) _pure_; |
2230852b | 48 | int path_compare(const char *a, const char *b) _pure_; |
44a6b1b6 | 49 | bool path_equal(const char *a, const char *b) _pure_; |
e3f791a2 | 50 | bool path_equal_or_files_same(const char *a, const char *b, int flags); |
0c6ea3a4 | 51 | char* path_join(const char *root, const char *path, const char *rest); |
858d36c1 | 52 | char* path_simplify(char *path, bool kill_dots); |
44a6b1b6 | 53 | |
24737c29 ZJS |
54 | static inline bool path_equal_ptr(const char *a, const char *b) { |
55 | return !!a == !!b && (!a || path_equal(a, b)); | |
56 | } | |
57 | ||
3ae5990c ZJS |
58 | /* Note: the search terminates on the first NULL item. */ |
59 | #define PATH_IN_SET(p, ...) \ | |
60 | ({ \ | |
61 | char **s; \ | |
62 | bool _found = false; \ | |
63 | STRV_FOREACH(s, STRV_MAKE(__VA_ARGS__)) \ | |
64 | if (path_equal(p, *s)) { \ | |
65 | _found = true; \ | |
66 | break; \ | |
67 | } \ | |
68 | _found; \ | |
69 | }) | |
70 | ||
ad2706db LP |
71 | #define PATH_STARTSWITH_SET(p, ...) \ |
72 | ({ \ | |
73 | char **s; \ | |
74 | bool _found = false; \ | |
75 | STRV_FOREACH(s, STRV_MAKE(__VA_ARGS__)) \ | |
76 | if (path_startswith(p, *s)) { \ | |
77 | _found = true; \ | |
78 | break; \ | |
79 | } \ | |
80 | _found; \ | |
81 | }) | |
82 | ||
0f474365 | 83 | int path_strv_make_absolute_cwd(char **l); |
e1873695 LP |
84 | char** path_strv_resolve(char **l, const char *root); |
85 | char** path_strv_resolve_uniq(char **l, const char *root); | |
9eb977db | 86 | |
85eca92e | 87 | int find_binary(const char *name, char **filename); |
fecffe5d | 88 | |
2ad8416d | 89 | bool paths_check_timestamp(const char* const* paths, usec_t *paths_ts_usec, bool update); |
8e184852 | 90 | |
eb66db55 | 91 | int fsck_exists(const char *fstype); |
5bcd08db | 92 | int mkfs_exists(const char *fstype); |
eb66db55 | 93 | |
e203f7c3 LP |
94 | /* Iterates through the path prefixes of the specified path, going up |
95 | * the tree, to root. Also returns "" (and not "/"!) for the root | |
96 | * directory. Excludes the specified directory itself */ | |
fecffe5d | 97 | #define PATH_FOREACH_PREFIX(prefix, path) \ |
858d36c1 | 98 | for (char *_slash = ({ path_simplify(strcpy(prefix, path), false); streq(prefix, "/") ? NULL : strrchr(prefix, '/'); }); _slash && ((*_slash = 0), true); _slash = strrchr((prefix), '/')) |
e203f7c3 LP |
99 | |
100 | /* Same as PATH_FOREACH_PREFIX but also includes the specified path itself */ | |
101 | #define PATH_FOREACH_PREFIX_MORE(prefix, path) \ | |
858d36c1 | 102 | for (char *_slash = ({ path_simplify(strcpy(prefix, path), false); if (streq(prefix, "/")) prefix[0] = 0; strrchr(prefix, 0); }); _slash && ((*_slash = 0), true); _slash = strrchr((prefix), '/')) |
1d13f648 LP |
103 | |
104 | char *prefix_root(const char *root, const char *path); | |
105 | ||
106 | /* Similar to prefix_root(), but returns an alloca() buffer, or | |
107 | * possibly a const pointer into the path parameter */ | |
108 | #define prefix_roota(root, path) \ | |
109 | ({ \ | |
110 | const char* _path = (path), *_root = (root), *_ret; \ | |
111 | char *_p, *_n; \ | |
112 | size_t _l; \ | |
113 | while (_path[0] == '/' && _path[1] == '/') \ | |
114 | _path ++; \ | |
57ea45e1 | 115 | if (empty_or_root(_root)) \ |
1d13f648 LP |
116 | _ret = _path; \ |
117 | else { \ | |
118 | _l = strlen(_root) + 1 + strlen(_path) + 1; \ | |
119 | _n = alloca(_l); \ | |
120 | _p = stpcpy(_n, _root); \ | |
121 | while (_p > _n && _p[-1] == '/') \ | |
122 | _p--; \ | |
123 | if (_path[0] != '/') \ | |
124 | *(_p++) = '/'; \ | |
125 | strcpy(_p, _path); \ | |
126 | _ret = _n; \ | |
127 | } \ | |
128 | _ret; \ | |
129 | }) | |
0f03c2a4 LP |
130 | |
131 | int parse_path_argument_and_warn(const char *path, bool suppress_root, char **arg); | |
5f311f8c LP |
132 | |
133 | char* dirname_malloc(const char *path); | |
b12d25a8 | 134 | const char *last_path_component(const char *path); |
bb15fafe LP |
135 | |
136 | bool filename_is_valid(const char *p) _pure_; | |
99be45a4 | 137 | bool path_is_normalized(const char *p) _pure_; |
a0956174 LP |
138 | |
139 | char *file_in_same_dir(const char *path, const char *filename); | |
140 | ||
55cdd057 | 141 | bool hidden_or_backup_file(const char *filename) _pure_; |
a0956174 LP |
142 | |
143 | bool is_device_path(const char *path); | |
57e84e75 LP |
144 | |
145 | bool valid_device_node_path(const char *path); | |
146 | bool valid_device_allow_pattern(const char *path); | |
5a46d55f ZJS |
147 | |
148 | int systemd_installation_has_version(const char *root, unsigned minimal_version); | |
49bfc877 LP |
149 | |
150 | bool dot_or_dot_dot(const char *path); | |
a119ec7c LP |
151 | |
152 | static inline const char *skip_dev_prefix(const char *p) { | |
153 | const char *e; | |
154 | ||
155 | /* Drop any /dev prefix if there is any */ | |
156 | ||
157 | e = path_startswith(p, "/dev/"); | |
158 | ||
159 | return e ?: p; | |
160 | } | |
57ea45e1 LP |
161 | |
162 | bool empty_or_root(const char *root); | |
945403e6 YW |
163 | static inline const char *empty_to_root(const char *path) { |
164 | return isempty(path) ? "/" : path; | |
165 | } | |
58a53add YW |
166 | |
167 | enum { | |
168 | PATH_CHECK_FATAL = 1 << 0, /* If not set, then error message is appended with 'ignoring'. */ | |
169 | PATH_CHECK_ABSOLUTE = 1 << 1, | |
170 | PATH_CHECK_RELATIVE = 1 << 2, | |
171 | }; | |
172 | ||
173 | int path_simplify_and_warn(char *path, unsigned flag, const char *unit, const char *filename, unsigned line, const char *lvalue); |