From 623f13d8198b83df890f014b1d27255f4d78f35b Mon Sep 17 00:00:00 2001
From: Luke Shumaker <lukeshu@sbcglobal.net>
Date: Fri, 21 Oct 2016 03:00:49 -0400
Subject: wip
---
.../include/systemd-basic/path-util.h | 127 +++++++++++++++++++++
1 file changed, 127 insertions(+)
create mode 100644 src/libsystemd-basic/include/systemd-basic/path-util.h
(limited to 'src/libsystemd-basic/include/systemd-basic/path-util.h')
diff --git a/src/libsystemd-basic/include/systemd-basic/path-util.h b/src/libsystemd-basic/include/systemd-basic/path-util.h
new file mode 100644
index 0000000000..a27c13fcc3
--- /dev/null
+++ b/src/libsystemd-basic/include/systemd-basic/path-util.h
@@ -0,0 +1,127 @@
+#pragma once
+
+/***
+ This file is part of systemd.
+
+ Copyright 2010-2012 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include <alloca.h>
+#include <stdbool.h>
+#include <stddef.h>
+
+#include "macro.h"
+#include "time-util.h"
+
+#define DEFAULT_PATH_NORMAL "/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin"
+#define DEFAULT_PATH_SPLIT_USR DEFAULT_PATH_NORMAL ":/sbin:/bin"
+
+#ifdef HAVE_SPLIT_USR
+# define DEFAULT_PATH DEFAULT_PATH_SPLIT_USR
+#else
+# define DEFAULT_PATH DEFAULT_PATH_NORMAL
+#endif
+
+bool is_path(const char *p) _pure_;
+int path_split_and_make_absolute(const char *p, char ***ret);
+bool path_is_absolute(const char *p) _pure_;
+char* path_make_absolute(const char *p, const char *prefix);
+int path_make_absolute_cwd(const char *p, char **ret);
+int path_make_relative(const char *from_dir, const char *to_path, char **_r);
+char* path_kill_slashes(char *path);
+char* path_startswith(const char *path, const char *prefix) _pure_;
+int path_compare(const char *a, const char *b) _pure_;
+bool path_equal(const char *a, const char *b) _pure_;
+bool path_equal_or_files_same(const char *a, const char *b);
+char* path_join(const char *root, const char *path, const char *rest);
+
+static inline bool path_equal_ptr(const char *a, const char *b) {
+ return !!a == !!b && (!a || path_equal(a, b));
+}
+
+/* Note: the search terminates on the first NULL item. */
+#define PATH_IN_SET(p, ...) \
+ ({ \
+ char **s; \
+ bool _found = false; \
+ STRV_FOREACH(s, STRV_MAKE(__VA_ARGS__)) \
+ if (path_equal(p, *s)) { \
+ _found = true; \
+ break; \
+ } \
+ _found; \
+ })
+
+int path_strv_make_absolute_cwd(char **l);
+char** path_strv_resolve(char **l, const char *prefix);
+char** path_strv_resolve_uniq(char **l, const char *prefix);
+
+int find_binary(const char *name, char **filename);
+
+bool paths_check_timestamp(const char* const* paths, usec_t *paths_ts_usec, bool update);
+
+int fsck_exists(const char *fstype);
+int mkfs_exists(const char *fstype);
+
+/* Iterates through the path prefixes of the specified path, going up
+ * the tree, to root. Also returns "" (and not "/"!) for the root
+ * directory. Excludes the specified directory itself */
+#define PATH_FOREACH_PREFIX(prefix, path) \
+ for (char *_slash = ({ path_kill_slashes(strcpy(prefix, path)); streq(prefix, "/") ? NULL : strrchr(prefix, '/'); }); _slash && ((*_slash = 0), true); _slash = strrchr((prefix), '/'))
+
+/* Same as PATH_FOREACH_PREFIX but also includes the specified path itself */
+#define PATH_FOREACH_PREFIX_MORE(prefix, path) \
+ 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), '/'))
+
+char *prefix_root(const char *root, const char *path);
+
+/* Similar to prefix_root(), but returns an alloca() buffer, or
+ * possibly a const pointer into the path parameter */
+#define prefix_roota(root, path) \
+ ({ \
+ const char* _path = (path), *_root = (root), *_ret; \
+ char *_p, *_n; \
+ size_t _l; \
+ while (_path[0] == '/' && _path[1] == '/') \
+ _path ++; \
+ if (isempty(_root) || path_equal(_root, "/")) \
+ _ret = _path; \
+ else { \
+ _l = strlen(_root) + 1 + strlen(_path) + 1; \
+ _n = alloca(_l); \
+ _p = stpcpy(_n, _root); \
+ while (_p > _n && _p[-1] == '/') \
+ _p--; \
+ if (_path[0] != '/') \
+ *(_p++) = '/'; \
+ strcpy(_p, _path); \
+ _ret = _n; \
+ } \
+ _ret; \
+ })
+
+int parse_path_argument_and_warn(const char *path, bool suppress_root, char **arg);
+
+char* dirname_malloc(const char *path);
+
+bool filename_is_valid(const char *p) _pure_;
+bool path_is_safe(const char *p) _pure_;
+
+char *file_in_same_dir(const char *path, const char *filename);
+
+bool hidden_or_backup_file(const char *filename) _pure_;
+
+bool is_device_path(const char *path);
--
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