fd-util: Add path_is_root_at()

[thirdparty/systemd.git] / src / basic / fd-util.h

diff --git a/src/basic/fd-util.h b/src/basic/fd-util.h
index 2f59e334c5c12051405b3bfa94ef3ac2fbe80aa7..c870a1b8990d6ca21d870c260b0e51913b12958d 100644 (file)
--- a/src/basic/fd-util.h
+++ b/src/basic/fd-util.h
@@ -101,9 +101,12 @@ int fd_is_opath(int fd);
 int read_nr_open(void);
 int fd_get_diskseq(int fd, uint64_t *ret);
 
-int dir_fd_is_root(int dir_fd);
+int path_is_root_at(int dir_fd, const char *path);
+static inline int dir_fd_is_root(int dir_fd) {
+        return path_is_root_at(dir_fd, NULL);
+}
 static inline int dir_fd_is_root_or_cwd(int dir_fd) {
-        return dir_fd == AT_FDCWD ? true : dir_fd_is_root(dir_fd);
+        return dir_fd == AT_FDCWD ? true : path_is_root_at(dir_fd, NULL);
 }
 
 /* The maximum length a buffer for a /proc/self/fd/<fd> path needs */