1 files changed, 91 insertions, 0 deletions
diff --git a/io/tst-utimensat-skeleton.c b/io/tst-utimensat-skeleton.c
new file mode 100644
index 0000000000..3589146db5
--- /dev/null
+++ b/io/tst-utimensat-skeleton.c
@@ -0,0 +1,91 @@
+/* Common tests for utimensat routines.
+   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 <array_length.h>
+#include <inttypes.h>
+#include <support/support.h>
+#include <support/temp_file.h>
+#include <stdio.h>
+
+static int temp_fd = -1;
+static char *testfile;
+
+const static struct {
+  int64_t v1;
+  int64_t v2;
+} tests[] = {
+  /* Y2038 threshold minus 2 and 1 seconds.  */
+  { 0x7FFFFFFELL, 0x7FFFFFFFLL },
+  /* Y2038 threshold plus 1 and 2 seconds.  */
+  { 0x80000001LL, 0x80000002LL },
+  /* Around Y2038 threshold.  */
+  { 0x7FFFFFFELL, 0x80000002LL },
+  /* Y2106 threshold minus 2 and 1 seconds.  */
+  { 0x100000000LL, 0xFFFFFFFELL },
+  /* Y2106 threshold plus 1 and 2 seconds.  */
+  { 0x100000001LL, 0x100000002LL },
+  /* Around Y2106 threshold.  */
+  { 0xFFFFFFFELL, 0xFFFFFFFELL },
+};
+
+#define PREPARE do_prepare
+static void
+do_prepare (int argc, char *argv[])
+{
+  temp_fd = create_temp_file ("utime", &testfile);
+  TEST_VERIFY_EXIT (temp_fd > 0);
+}
+
+static int
+do_test (void)
+{
+  if (!support_path_support_time64 (testfile))
+    FAIL_UNSUPPORTED ("File %s does not support 64-bit timestamps",
+		      testfile);
+
+  bool y2106 = support_path_support_time64_value (testfile,
+						  0x100000001LL,
+						  0x100000002LL);
+
+  for (int i = 0; i < array_length (tests); i++)
+    {
+      /* Check if we run on port with 32 bit time_t size.  */
+      time_t t;
+      if (__builtin_add_overflow (tests[i].v1, 0, &t)
+	  || __builtin_add_overflow (tests[i].v2, 0, &t))
+        {
+          printf ("warning: skipping tests[%d] { %" PRIx64 ", %" PRIx64 " }: "
+		  "time_t overflows\n", i, tests[i].v1, tests[i].v2);
+	  continue;
+        }
+
+      if (tests[i].v1 >= 0x100000000LL && !y2106)
+	{
+          printf ("warning: skipping tests[%d] { %" PRIx64 ", %" PRIx64 " }: "
+		  "unsupported timestamp value\n",
+		  i, tests[i].v1, tests[i].v2);
+	  continue;
+	}
+
+      TEST_CALL (testfile, temp_fd, tests[i].v1, tests[i].v2);
+    }
+
+  return 0;
+}
+
+#include <support/test-driver.c>