+
+#ifndef ATTRIBUTE_NORETURN
+# define ATTRIBUTE_NORETURN __attribute__ ((__noreturn__))
+#endif
+
+#if !HAVE_OPENAT
+
+int openat_permissive (int fd, char const *file, int flags, mode_t mode,
+ int *cwd_errno);
+bool openat_needs_fchdir (void);
+
+#else
+
+# define openat_permissive(Fd, File, Flags, Mode, Cwd_errno) \
+ openat (Fd, File, Flags, Mode)
+# define openat_needs_fchdir() false
+
+#endif
+
+void openat_restore_fail (int) ATTRIBUTE_NORETURN;
+void openat_save_fail (int) ATTRIBUTE_NORETURN;
+
+/* Using these function names makes application code
+ slightly more readable than it would be with
+ fchownat (..., 0) or fchownat (..., AT_SYMLINK_NOFOLLOW). */
+static inline int
+chownat (int fd, char const *file, uid_t owner, gid_t group)
+{
+ return fchownat (fd, file, owner, group, 0);
+}
+
+static inline int
+lchownat (int fd, char const *file, uid_t owner, gid_t group)
+{
+ return fchownat (fd, file, owner, group, AT_SYMLINK_NOFOLLOW);
+}
+
+static inline int
+chmodat (int fd, char const *file, mode_t mode)
+{
+ return fchmodat (fd, file, mode, 0);
+}
+
+static inline int
+lchmodat (int fd, char const *file, mode_t mode)
+{
+ return fchmodat (fd, file, mode, AT_SYMLINK_NOFOLLOW);
+}
+
+static inline int
+statat (int fd, char const *name, struct stat *st)
+{
+ return fstatat (fd, name, st, 0);
+}
+
+static inline int
+lstatat (int fd, char const *name, struct stat *st)
+{
+ return fstatat (fd, name, st, AT_SYMLINK_NOFOLLOW);
+}
+
+#if GNULIB_FACCESSAT
+/* For now, there are no wrappers named laccessat or leuidaccessat,
+ since gnulib doesn't support faccessat(,AT_SYMLINK_NOFOLLOW) and
+ since access rights on symlinks are of limited utility. */
+
+static inline int
+accessat (int fd, char const *file, int mode)
+{
+ return faccessat (fd, file, mode, 0);
+}
+
+static inline int
+euidaccessat (int fd, char const *file, int mode)
+{
+ return faccessat (fd, file, mode, AT_EACCESS);
+}
+#endif
+
+#endif /* _GL_HEADER_OPENAT */