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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" |
f5a9bd21 | 10 | #include "strv.h" |
8e184852 | 11 | #include "time-util.h" |
44a6b1b6 | 12 | |
0c300adf LP |
13 | #define PATH_SPLIT_SBIN_BIN(x) x "sbin:" x "bin" |
14 | #define PATH_SPLIT_SBIN_BIN_NULSTR(x) x "sbin\0" x "bin\0" | |
15 | ||
16 | #define PATH_NORMAL_SBIN_BIN(x) x "bin" | |
17 | #define PATH_NORMAL_SBIN_BIN_NULSTR(x) x "bin\0" | |
18 | ||
671f0f8d | 19 | #if HAVE_SPLIT_BIN |
0c300adf LP |
20 | # define PATH_SBIN_BIN(x) PATH_SPLIT_SBIN_BIN(x) |
21 | # define PATH_SBIN_BIN_NULSTR(x) PATH_SPLIT_SBIN_BIN_NULSTR(x) | |
671f0f8d | 22 | #else |
0c300adf LP |
23 | # define PATH_SBIN_BIN(x) PATH_NORMAL_SBIN_BIN(x) |
24 | # define PATH_SBIN_BIN_NULSTR(x) PATH_NORMAL_SBIN_BIN_NULSTR(x) | |
671f0f8d ZJS |
25 | #endif |
26 | ||
27 | #define DEFAULT_PATH_NORMAL PATH_SBIN_BIN("/usr/local/") ":" PATH_SBIN_BIN("/usr/") | |
2259e8fb | 28 | #define DEFAULT_PATH_NORMAL_NULSTR PATH_SBIN_BIN_NULSTR("/usr/local/") PATH_SBIN_BIN_NULSTR("/usr/") |
671f0f8d | 29 | #define DEFAULT_PATH_SPLIT_USR DEFAULT_PATH_NORMAL ":" PATH_SBIN_BIN("/") |
2259e8fb | 30 | #define DEFAULT_PATH_SPLIT_USR_NULSTR DEFAULT_PATH_NORMAL_NULSTR PATH_SBIN_BIN_NULSTR("/") |
0c300adf | 31 | #define DEFAULT_PATH_COMPAT PATH_SPLIT_SBIN_BIN("/usr/local/") ":" PATH_SPLIT_SBIN_BIN("/usr/") ":" PATH_SPLIT_SBIN_BIN("/") |
e10a55fd | 32 | |
349cc4a5 | 33 | #if HAVE_SPLIT_USR |
e10a55fd | 34 | # define DEFAULT_PATH DEFAULT_PATH_SPLIT_USR |
2259e8fb | 35 | # define DEFAULT_PATH_NULSTR DEFAULT_PATH_SPLIT_USR_NULSTR |
c9d954b2 | 36 | #else |
e10a55fd | 37 | # define DEFAULT_PATH DEFAULT_PATH_NORMAL |
2259e8fb | 38 | # define DEFAULT_PATH_NULSTR DEFAULT_PATH_NORMAL_NULSTR |
c9d954b2 ZJS |
39 | #endif |
40 | ||
44a6b1b6 | 41 | bool is_path(const char *p) _pure_; |
0f474365 | 42 | int path_split_and_make_absolute(const char *p, char ***ret); |
44a6b1b6 ZJS |
43 | bool path_is_absolute(const char *p) _pure_; |
44 | char* path_make_absolute(const char *p, const char *prefix); | |
a2556d25 | 45 | int safe_getcwd(char **ret); |
0f474365 | 46 | int path_make_absolute_cwd(const char *p, char **ret); |
7cb9c51c | 47 | int path_make_relative(const char *from_dir, const char *to_path, char **_r); |
44a6b1b6 | 48 | char* path_startswith(const char *path, const char *prefix) _pure_; |
2230852b | 49 | int path_compare(const char *a, const char *b) _pure_; |
44a6b1b6 | 50 | bool path_equal(const char *a, const char *b) _pure_; |
e3f791a2 | 51 | bool path_equal_or_files_same(const char *a, const char *b, int flags); |
62a85ee0 ZJS |
52 | char* path_join_internal(const char *first, ...) _sentinel_; |
53 | #define path_join(x, ...) path_join_internal(x, __VA_ARGS__, NULL) | |
cd8194a3 | 54 | |
858d36c1 | 55 | char* path_simplify(char *path, bool kill_dots); |
44a6b1b6 | 56 | |
24737c29 ZJS |
57 | static inline bool path_equal_ptr(const char *a, const char *b) { |
58 | return !!a == !!b && (!a || path_equal(a, b)); | |
59 | } | |
60 | ||
3ae5990c ZJS |
61 | /* Note: the search terminates on the first NULL item. */ |
62 | #define PATH_IN_SET(p, ...) \ | |
63 | ({ \ | |
6b228852 | 64 | char **_s; \ |
3ae5990c | 65 | bool _found = false; \ |
6b228852 LP |
66 | STRV_FOREACH(_s, STRV_MAKE(__VA_ARGS__)) \ |
67 | if (path_equal(p, *_s)) { \ | |
3ae5990c ZJS |
68 | _found = true; \ |
69 | break; \ | |
70 | } \ | |
71 | _found; \ | |
72 | }) | |
73 | ||
ad2706db LP |
74 | #define PATH_STARTSWITH_SET(p, ...) \ |
75 | ({ \ | |
d898ed65 LP |
76 | const char *_p = (p); \ |
77 | char *_found = NULL, **_i; \ | |
78 | STRV_FOREACH(_i, STRV_MAKE(__VA_ARGS__)) { \ | |
79 | _found = path_startswith(_p, *_i); \ | |
80 | if (_found) \ | |
81 | break; \ | |
82 | } \ | |
ad2706db LP |
83 | _found; \ |
84 | }) | |
85 | ||
0f474365 | 86 | int path_strv_make_absolute_cwd(char **l); |
e1873695 LP |
87 | char** path_strv_resolve(char **l, const char *root); |
88 | char** path_strv_resolve_uniq(char **l, const char *root); | |
9eb977db | 89 | |
85eca92e | 90 | int find_binary(const char *name, char **filename); |
fecffe5d | 91 | |
2ad8416d | 92 | bool paths_check_timestamp(const char* const* paths, usec_t *paths_ts_usec, bool update); |
8e184852 | 93 | |
eb66db55 | 94 | int fsck_exists(const char *fstype); |
5bcd08db | 95 | int mkfs_exists(const char *fstype); |
eb66db55 | 96 | |
e203f7c3 LP |
97 | /* Iterates through the path prefixes of the specified path, going up |
98 | * the tree, to root. Also returns "" (and not "/"!) for the root | |
99 | * directory. Excludes the specified directory itself */ | |
fecffe5d | 100 | #define PATH_FOREACH_PREFIX(prefix, path) \ |
858d36c1 | 101 | for (char *_slash = ({ path_simplify(strcpy(prefix, path), false); streq(prefix, "/") ? NULL : strrchr(prefix, '/'); }); _slash && ((*_slash = 0), true); _slash = strrchr((prefix), '/')) |
e203f7c3 LP |
102 | |
103 | /* Same as PATH_FOREACH_PREFIX but also includes the specified path itself */ | |
104 | #define PATH_FOREACH_PREFIX_MORE(prefix, path) \ | |
858d36c1 | 105 | 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 |
106 | |
107 | char *prefix_root(const char *root, const char *path); | |
108 | ||
109 | /* Similar to prefix_root(), but returns an alloca() buffer, or | |
110 | * possibly a const pointer into the path parameter */ | |
111 | #define prefix_roota(root, path) \ | |
112 | ({ \ | |
113 | const char* _path = (path), *_root = (root), *_ret; \ | |
114 | char *_p, *_n; \ | |
115 | size_t _l; \ | |
116 | while (_path[0] == '/' && _path[1] == '/') \ | |
117 | _path ++; \ | |
57ea45e1 | 118 | if (empty_or_root(_root)) \ |
1d13f648 LP |
119 | _ret = _path; \ |
120 | else { \ | |
121 | _l = strlen(_root) + 1 + strlen(_path) + 1; \ | |
122 | _n = alloca(_l); \ | |
123 | _p = stpcpy(_n, _root); \ | |
124 | while (_p > _n && _p[-1] == '/') \ | |
125 | _p--; \ | |
126 | if (_path[0] != '/') \ | |
127 | *(_p++) = '/'; \ | |
128 | strcpy(_p, _path); \ | |
129 | _ret = _n; \ | |
130 | } \ | |
131 | _ret; \ | |
132 | }) | |
0f03c2a4 LP |
133 | |
134 | int parse_path_argument_and_warn(const char *path, bool suppress_root, char **arg); | |
5f311f8c LP |
135 | |
136 | char* dirname_malloc(const char *path); | |
b12d25a8 | 137 | const char *last_path_component(const char *path); |
a60c8eee | 138 | int path_extract_filename(const char *p, char **ret); |
bb15fafe LP |
139 | |
140 | bool filename_is_valid(const char *p) _pure_; | |
656552eb | 141 | bool path_is_valid(const char *p) _pure_; |
99be45a4 | 142 | bool path_is_normalized(const char *p) _pure_; |
a0956174 LP |
143 | |
144 | char *file_in_same_dir(const char *path, const char *filename); | |
145 | ||
55cdd057 | 146 | bool hidden_or_backup_file(const char *filename) _pure_; |
a0956174 LP |
147 | |
148 | bool is_device_path(const char *path); | |
57e84e75 LP |
149 | |
150 | bool valid_device_node_path(const char *path); | |
151 | bool valid_device_allow_pattern(const char *path); | |
5a46d55f ZJS |
152 | |
153 | int systemd_installation_has_version(const char *root, unsigned minimal_version); | |
49bfc877 LP |
154 | |
155 | bool dot_or_dot_dot(const char *path); | |
a119ec7c LP |
156 | |
157 | static inline const char *skip_dev_prefix(const char *p) { | |
158 | const char *e; | |
159 | ||
160 | /* Drop any /dev prefix if there is any */ | |
161 | ||
162 | e = path_startswith(p, "/dev/"); | |
163 | ||
164 | return e ?: p; | |
165 | } | |
57ea45e1 LP |
166 | |
167 | bool empty_or_root(const char *root); | |
945403e6 YW |
168 | static inline const char *empty_to_root(const char *path) { |
169 | return isempty(path) ? "/" : path; | |
170 | } | |
58a53add YW |
171 | |
172 | enum { | |
173 | PATH_CHECK_FATAL = 1 << 0, /* If not set, then error message is appended with 'ignoring'. */ | |
174 | PATH_CHECK_ABSOLUTE = 1 << 1, | |
175 | PATH_CHECK_RELATIVE = 1 << 2, | |
176 | }; | |
177 | ||
178 | int path_simplify_and_warn(char *path, unsigned flag, const char *unit, const char *filename, unsigned line, const char *lvalue); |