2017-11-18 17:09:20 +01:00
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/* SPDX-License-Identifier: LGPL-2.1+ */
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2013-03-29 03:03:53 +01:00
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#pragma once
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2012-05-07 21:36:12 +02:00
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2015-11-30 21:43:37 +01:00
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#include <alloca.h>
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2013-05-03 04:51:50 +02:00
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#include <stdbool.h>
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2015-11-30 21:43:37 +01:00
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#include <stddef.h>
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2012-05-07 21:36:12 +02:00
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2013-05-03 04:51:50 +02:00
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#include "macro.h"
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2016-12-13 12:34:09 +01:00
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#include "string-util.h"
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2018-11-23 09:23:19 +01:00
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#include "strv.h"
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2013-10-26 00:36:49 +02:00
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#include "time-util.h"
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2013-05-03 04:51:50 +02:00
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2018-04-20 11:36:25 +02:00
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#define PATH_SPLIT_SBIN_BIN(x) x "sbin:" x "bin"
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#define PATH_SPLIT_SBIN_BIN_NULSTR(x) x "sbin\0" x "bin\0"
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#define PATH_NORMAL_SBIN_BIN(x) x "bin"
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#define PATH_NORMAL_SBIN_BIN_NULSTR(x) x "bin\0"
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2018-03-01 21:48:36 +01:00
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#if HAVE_SPLIT_BIN
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2018-04-20 11:36:25 +02:00
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# define PATH_SBIN_BIN(x) PATH_SPLIT_SBIN_BIN(x)
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# define PATH_SBIN_BIN_NULSTR(x) PATH_SPLIT_SBIN_BIN_NULSTR(x)
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2018-03-01 21:48:36 +01:00
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#else
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2018-04-20 11:36:25 +02:00
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# define PATH_SBIN_BIN(x) PATH_NORMAL_SBIN_BIN(x)
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# define PATH_SBIN_BIN_NULSTR(x) PATH_NORMAL_SBIN_BIN_NULSTR(x)
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2018-03-01 21:48:36 +01:00
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#endif
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#define DEFAULT_PATH_NORMAL PATH_SBIN_BIN("/usr/local/") ":" PATH_SBIN_BIN("/usr/")
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2018-04-18 07:46:03 +02:00
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#define DEFAULT_PATH_NORMAL_NULSTR PATH_SBIN_BIN_NULSTR("/usr/local/") PATH_SBIN_BIN_NULSTR("/usr/")
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2018-03-01 21:48:36 +01:00
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#define DEFAULT_PATH_SPLIT_USR DEFAULT_PATH_NORMAL ":" PATH_SBIN_BIN("/")
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2018-04-18 07:46:03 +02:00
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#define DEFAULT_PATH_SPLIT_USR_NULSTR DEFAULT_PATH_NORMAL_NULSTR PATH_SBIN_BIN_NULSTR("/")
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2018-04-20 11:36:25 +02:00
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#define DEFAULT_PATH_COMPAT PATH_SPLIT_SBIN_BIN("/usr/local/") ":" PATH_SPLIT_SBIN_BIN("/usr/") ":" PATH_SPLIT_SBIN_BIN("/")
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2013-12-21 00:35:38 +01:00
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2017-10-03 10:41:51 +02:00
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#if HAVE_SPLIT_USR
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2013-12-21 00:35:38 +01:00
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# define DEFAULT_PATH DEFAULT_PATH_SPLIT_USR
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2018-04-18 07:46:03 +02:00
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# define DEFAULT_PATH_NULSTR DEFAULT_PATH_SPLIT_USR_NULSTR
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2013-09-08 13:51:39 +02:00
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#else
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2013-12-21 00:35:38 +01:00
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# define DEFAULT_PATH DEFAULT_PATH_NORMAL
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2018-04-18 07:46:03 +02:00
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# define DEFAULT_PATH_NULSTR DEFAULT_PATH_NORMAL_NULSTR
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2013-09-08 13:51:39 +02:00
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#endif
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2019-11-12 15:38:19 +01:00
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#ifndef DEFAULT_USER_PATH
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# define DEFAULT_USER_PATH DEFAULT_PATH
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#endif
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2020-09-17 14:12:05 +02:00
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static inline bool is_path(const char *p) {
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assert(p);
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return strchr(p, '/');
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}
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static inline bool path_is_absolute(const char *p) {
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assert(p);
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return p[0] == '/';
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}
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2015-10-22 19:28:31 +02:00
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int path_split_and_make_absolute(const char *p, char ***ret);
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2013-05-03 04:51:50 +02:00
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char* path_make_absolute(const char *p, const char *prefix);
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2018-01-17 11:16:31 +01:00
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int safe_getcwd(char **ret);
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2015-10-22 19:28:31 +02:00
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int path_make_absolute_cwd(const char *p, char **ret);
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2014-05-03 10:52:12 +02:00
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int path_make_relative(const char *from_dir, const char *to_path, char **_r);
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2013-05-03 04:51:50 +02:00
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char* path_startswith(const char *path, const char *prefix) _pure_;
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2015-03-16 21:58:35 +01:00
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int path_compare(const char *a, const char *b) _pure_;
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2013-05-03 04:51:50 +02:00
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bool path_equal(const char *a, const char *b) _pure_;
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2017-06-17 18:37:16 +02:00
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bool path_equal_or_files_same(const char *a, const char *b, int flags);
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2018-11-30 11:06:24 +01:00
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char* path_join_internal(const char *first, ...);
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#define path_join(x, ...) path_join_internal(x, __VA_ARGS__, (const char*) -1)
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2018-06-28 22:28:40 +02:00
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2018-05-31 16:39:31 +02:00
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char* path_simplify(char *path, bool kill_dots);
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2013-05-03 04:51:50 +02:00
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2019-07-09 11:40:19 +02:00
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enum {
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PATH_CHECK_FATAL = 1 << 0, /* If not set, then error message is appended with 'ignoring'. */
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PATH_CHECK_ABSOLUTE = 1 << 1,
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PATH_CHECK_RELATIVE = 1 << 2,
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};
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int path_simplify_and_warn(char *path, unsigned flag, const char *unit, const char *filename, unsigned line, const char *lvalue);
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2016-04-17 05:08:23 +02:00
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static inline bool path_equal_ptr(const char *a, const char *b) {
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return !!a == !!b && (!a || path_equal(a, b));
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}
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2016-04-17 04:52:06 +02:00
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/* Note: the search terminates on the first NULL item. */
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2020-01-08 12:23:57 +01:00
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#define PATH_IN_SET(p, ...) path_strv_contains(STRV_MAKE(__VA_ARGS__), p)
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2016-04-17 04:52:06 +02:00
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2019-03-28 22:35:46 +01:00
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char* path_startswith_strv(const char *p, char **set);
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#define PATH_STARTSWITH_SET(p, ...) path_startswith_strv(p, STRV_MAKE(__VA_ARGS__))
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2016-11-29 22:50:21 +01:00
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2015-10-22 19:28:31 +02:00
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int path_strv_make_absolute_cwd(char **l);
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2016-11-18 21:35:21 +01:00
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char** path_strv_resolve(char **l, const char *root);
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char** path_strv_resolve_uniq(char **l, const char *root);
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2012-05-07 21:36:12 +02:00
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2020-09-17 14:32:17 +02:00
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int find_executable_full(const char *name, bool use_path_envvar, char **ret);
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static inline int find_executable(const char *name, char **ret) {
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return find_executable_full(name, true, ret);
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}
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2013-09-25 20:58:23 +02:00
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2014-01-08 23:41:41 +01:00
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bool paths_check_timestamp(const char* const* paths, usec_t *paths_ts_usec, bool update);
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2013-10-26 00:36:49 +02:00
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2014-04-12 22:07:45 +02:00
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int fsck_exists(const char *fstype);
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2013-09-26 19:58:33 +02:00
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/* Iterates through the path prefixes of the specified path, going up
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* the tree, to root. Also returns "" (and not "/"!) for the root
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* directory. Excludes the specified directory itself */
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2018-12-07 16:16:39 +01:00
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#define PATH_FOREACH_PREFIX(prefix, path) \
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for (char *_slash = ({ \
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path_simplify(strcpy(prefix, path), false); \
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streq(prefix, "/") ? NULL : strrchr(prefix, '/'); \
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}); \
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_slash && ((*_slash = 0), true); \
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_slash = strrchr((prefix), '/'))
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2013-09-26 19:58:33 +02:00
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/* Same as PATH_FOREACH_PREFIX but also includes the specified path itself */
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2018-12-07 16:16:39 +01:00
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#define PATH_FOREACH_PREFIX_MORE(prefix, path) \
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for (char *_slash = ({ \
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path_simplify(strcpy(prefix, path), false); \
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if (streq(prefix, "/")) \
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prefix[0] = 0; \
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strrchr(prefix, 0); \
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}); \
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_slash && ((*_slash = 0), true); \
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_slash = strrchr((prefix), '/'))
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2015-05-13 17:42:10 +02:00
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2019-06-19 15:20:13 +02:00
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/* Similar to path_join(), but only works for two components, and only the first one may be NULL and returns
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2019-06-24 16:36:38 +02:00
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* an alloca() buffer, or possibly a const pointer into the path parameter. */
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2015-05-13 17:42:10 +02:00
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#define prefix_roota(root, path) \
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({ \
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const char* _path = (path), *_root = (root), *_ret; \
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char *_p, *_n; \
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size_t _l; \
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while (_path[0] == '/' && _path[1] == '/') \
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_path ++; \
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2019-06-24 16:36:38 +02:00
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if (isempty(_root)) \
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2015-05-13 17:42:10 +02:00
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_ret = _path; \
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else { \
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_l = strlen(_root) + 1 + strlen(_path) + 1; \
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2019-01-26 15:52:18 +01:00
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_n = newa(char, _l); \
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2015-05-13 17:42:10 +02:00
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_p = stpcpy(_n, _root); \
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while (_p > _n && _p[-1] == '/') \
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_p--; \
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if (_path[0] != '/') \
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*(_p++) = '/'; \
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strcpy(_p, _path); \
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_ret = _n; \
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} \
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_ret; \
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})
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2015-10-22 19:54:29 +02:00
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int parse_path_argument_and_warn(const char *path, bool suppress_root, char **arg);
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2015-10-26 17:30:56 +01:00
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char* dirname_malloc(const char *path);
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util-lib: use trailing slash in chase_symlinks, fd_is_mount_point, path_is_mount_point
The kernel will reply with -ENOTDIR when we try to access a non-directory under
a name which ends with a slash. But our functions would strip the trailing slash
under various circumstances. Keep the trailing slash, so that
path_is_mount_point("/path/to/file/") return -ENOTDIR when /path/to/file/ is a file.
Tests are added for this change in behaviour.
Also, when called with a trailing slash, path_is_mount_point() would get
"" from basename(), and call name_to_handle_at(3, "", ...), and always
return -ENOENT. Now it'll return -ENOTDIR if the mount point is a file, and
true if it is a directory and a mount point.
v2:
- use strip_trailing_chars()
v3:
- instead of stripping trailing chars(), do the opposite — preserve them.
2017-10-31 11:08:30 +01:00
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const char *last_path_component(const char *path);
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2018-10-26 16:07:35 +02:00
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int path_extract_filename(const char *p, char **ret);
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2015-10-26 18:59:36 +01:00
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bool filename_is_valid(const char *p) _pure_;
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2018-10-17 18:28:14 +02:00
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bool path_is_valid(const char *p) _pure_;
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2017-10-27 16:28:15 +02:00
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bool path_is_normalized(const char *p) _pure_;
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2015-10-26 20:07:55 +01:00
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char *file_in_same_dir(const char *path, const char *filename);
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2016-04-27 15:24:59 +02:00
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bool hidden_or_backup_file(const char *filename) _pure_;
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2015-10-26 20:07:55 +01:00
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bool is_device_path(const char *path);
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2018-06-11 12:22:58 +02:00
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bool valid_device_node_path(const char *path);
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bool valid_device_allow_pattern(const char *path);
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2016-10-02 15:51:27 +02:00
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int systemd_installation_has_version(const char *root, unsigned minimal_version);
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2017-02-02 00:06:18 +01:00
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bool dot_or_dot_dot(const char *path);
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2017-08-09 19:01:18 +02:00
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static inline const char *skip_dev_prefix(const char *p) {
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const char *e;
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/* Drop any /dev prefix if there is any */
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e = path_startswith(p, "/dev/");
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return e ?: p;
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}
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2018-04-18 14:20:49 +02:00
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bool empty_or_root(const char *root);
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2018-05-10 18:47:33 +02:00
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static inline const char *empty_to_root(const char *path) {
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return isempty(path) ? "/" : path;
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}
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2020-01-07 16:24:33 +01:00
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bool path_strv_contains(char **l, const char *path);
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2020-03-10 15:43:10 +01:00
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bool prefixed_path_strv_contains(char **l, const char *path);
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2020-07-23 08:49:52 +02:00
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bool credential_name_valid(const char *s);
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