linux: Add lutimes test

It uses stat to compare against the values set by lutimes.

Checked on x86_64-linux-gnu and i686-linux-gnu.

Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>

1 files changed, 53 insertions, 0 deletions

diff --git a/io/tst-lutimes.c b/io/tst-lutimes.c
new file mode 100644
index 0000000..b2da3c5
--- /dev/null
+++ b/io/tst-lutimes.c
@@ -0,0 +1,53 @@
+/* Test for lutimes.
+   Copyright (C) 2021 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
+   <https://www.gnu.org/licenses/>.  */
+
+#include <support/check.h>
+#include <support/xunistd.h>
+#include <sys/stat.h>
+#include <sys/time.h>
+
+static int
+test_lutimes_helper (const char *testfile, int fd, const char *testlink,
+                     const struct timeval *tv)
+{
+  struct stat64 stfile_orig;
+  xlstat (testfile, &stfile_orig);
+
+  TEST_VERIFY_EXIT (lutimes (testlink, tv) == 0);
+
+  struct stat64 stlink;
+  xlstat (testlink, &stlink);
+
+  TEST_COMPARE (stlink.st_atime, tv[0].tv_sec);
+  TEST_COMPARE (stlink.st_mtime, tv[1].tv_sec);
+
+  /* Check if the timestamp from original file is not changed.  */
+  struct stat64 stfile;
+  xlstat (testfile, &stfile);
+
+  TEST_COMPARE (stfile_orig.st_atime, stfile.st_atime);
+  TEST_COMPARE (stfile_orig.st_mtime, stfile.st_mtime);
+
+  return 0;
+}
+
+#define TEST_CALL(fname, fd, lname, v1, v2) \
+  test_lutimes_helper (fname, fd, lname, (struct timeval[]) { { v1, 0 }, \
+                                                              { v2, 0 } })
+
+#include "tst-utimensat-skeleton.c"