hurd: Add futimesat and utimensat support

	* sysdeps/mach/hurd/utime-helper.c (hurd_futimens): Rename function to
	hurd_futimes.
	* sysdeps/mach/hurd/utimes.c (__utimes): Update call accordingly.
	* sysdeps/mach/hurd/lutimes.c (__lutimes): Likewise.
	* sysdeps/mach/hurd/futimens.c: Include "utime-helper.c".
	(__futimens): Move implementation to...
	* sysdeps/mach/hurd/utime-helper.c (utime_ts_from_tspec,
	utime_tvalue_from_tspec): ... new helper functions.
	(hurd_futimens): New function.
	* sysdeps/mach/hurd/futimesat.c: New file.
	* sysdeps/mach/hurd/utimensat.c: New file.

1 files changed, 46 insertions, 0 deletions

diff --git a/sysdeps/mach/hurd/utimensat.c b/sysdeps/mach/hurd/utimensat.c
new file mode 100644
index 0000000000..ac9bc534c8
--- /dev/null
+++ b/sysdeps/mach/hurd/utimensat.c
@@ -0,0 +1,46 @@
+/* Change access and modification times of open file.  Hurd version.
+   Copyright (C) 1991-2018 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library 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.
+
+   The GNU C Library 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 the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <sys/time.h>
+#include <errno.h>
+#include <stddef.h>
+#include <hurd.h>
+#include <hurd/fd.h>
+
+#include "utime-helper.c"
+
+/* Change the access time of FILE to TSP[0] and
+   the modification time of FILE to TSP[1].  */
+int
+utimensat (int fd, const char *file, const struct timespec tsp[2],
+	   int flags)
+{
+  error_t err;
+  file_t port;
+
+  port = __file_name_lookup_at (fd, flags, file, 0, 0);
+  if (port == MACH_PORT_NULL)
+    return -1;
+
+  err = hurd_futimens (port, tsp);
+
+  __mach_port_deallocate (__mach_task_self (), port);
+  if (err)
+    return __hurd_fail (err);
+  return 0;
+}