json: fix a mem leak

[elogind.git] / src / shared / path-util.h

diff --git a/src/shared/path-util.h b/src/shared/path-util.h
index 2b8ea0260e0c4a3296e3ace88dba2eb29bc54446..4f45cfd2b7ddf34778e4b8772c63cb517d205b02 100644 (file)
--- a/src/shared/path-util.h
+++ b/src/shared/path-util.h
@@ -41,28 +41,62 @@ int path_get_parent(const char *path, char **parent);
 bool path_is_absolute(const char *p) _pure_;
 char* path_make_absolute(const char *p, const char *prefix);
 char* path_make_absolute_cwd(const char *p);
+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);
 
 char** path_strv_make_absolute_cwd(char **l);
-char** path_strv_canonicalize_absolute(char **l, const char *prefix);
-char** path_strv_canonicalize_absolute_uniq(char **l, const char *prefix);
+char** path_strv_resolve(char **l, const char *prefix);
+char** path_strv_resolve_uniq(char **l, const char *prefix);
 
+int fd_is_mount_point(int fd);
 int path_is_mount_point(const char *path, bool allow_symlink);
 int path_is_read_only_fs(const char *path);
 int path_is_os_tree(const char *path);
 
-int find_binary(const char *name, char **filename);
+int find_binary(const char *name, bool local, char **filename);
 
 bool paths_check_timestamp(const char* const* paths, usec_t *paths_ts_usec, bool update);
 
+int fsck_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); _slash = strrchr((prefix), '/'))
+        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); _slash = strrchr((prefix), '/'))
+        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;                                                   \
+        })