1 files changed, 150 insertions, 0 deletions
diff --git a/gnulib-tests/test-fdutimensat.c b/gnulib-tests/test-fdutimensat.c
new file mode 100644
index 0000000..ce2fe5d
--- /dev/null
+++ b/gnulib-tests/test-fdutimensat.c
@@ -0,0 +1,150 @@
+/* Tests of fdutimensat.
+   Copyright (C) 2009-2023 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation, either version 3 of the License, or
+   (at your option) any later version.
+
+   This program 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 General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
+
+/* Written by Eric Blake <ebb9@byu.net>, 2009.  */
+
+#include <config.h>
+
+#include "utimens.h"
+
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "ignore-value.h"
+#include "macros.h"
+
+#define BASE "test-fdutimensat.t"
+
+#include "test-futimens.h"
+#include "test-lutimens.h"
+#include "test-utimens.h"
+
+static int dfd = AT_FDCWD;
+
+/* Wrap fdutimensat to behave like futimens.  */
+static int
+do_futimens (int fd, struct timespec const times[2])
+{
+  return fdutimensat (fd, dfd, NULL, times, 0);
+}
+
+/* Test the use of file descriptors alongside a name.  */
+static int
+do_fdutimens (char const *name, struct timespec const times[2])
+{
+  int result;
+  int nofollow_result;
+  int nofollow_errno;
+  int fd = openat (dfd, name, O_WRONLY);
+  if (fd < 0)
+    fd = openat (dfd, name, O_RDONLY);
+  errno = 0;
+  nofollow_result = fdutimensat (fd, dfd, name, times, AT_SYMLINK_NOFOLLOW);
+  nofollow_errno = errno;
+  result = fdutimensat (fd, dfd, name, times, 0);
+  ASSERT (result == nofollow_result
+          || (nofollow_result == -1 && nofollow_errno == ENOSYS));
+  if (0 <= fd)
+    {
+      int saved_errno = errno;
+      close (fd);
+      errno = saved_errno;
+    }
+  return result;
+}
+
+/* Wrap lutimensat to behave like lutimens.  */
+static int
+do_lutimens (const char *name, struct timespec const times[2])
+{
+  return lutimensat (dfd, name, times);
+}
+
+/* Wrap fdutimensat to behave like lutimens.  */
+static int
+do_lutimens1 (const char *name, struct timespec const times[2])
+{
+  return fdutimensat (-1, dfd, name, times, AT_SYMLINK_NOFOLLOW);
+}
+
+/* Wrap fdutimensat to behave like utimens.  */
+static int
+do_utimens (const char *name, struct timespec const times[2])
+{
+  return fdutimensat (-1, dfd, name, times, 0);
+}
+
+int
+main (void)
+{
+  int result1; /* Skip because of no symlink support.  */
+  int result2; /* Skip because of no futimens support.  */
+  int result3; /* Skip because of no lutimens support.  */
+  int fd;
+
+  /* Clean up any trash from prior testsuite runs.  */
+  ignore_value (system ("rm -rf " BASE "*"));
+
+  /* Basic tests.  */
+  result1 = test_utimens (do_utimens, true);
+  ASSERT (test_utimens (do_fdutimens, false) == result1);
+  result2 = test_futimens (do_futimens, result1 == 0);
+  result3 = test_lutimens (do_lutimens, (result1 + result2) == 0);
+  /* We expect 0/0, 0/77, or 77/77, but not 77/0.  */
+  ASSERT (result1 <= result3);
+  ASSERT (test_lutimens (do_lutimens1, (result1 + result2) == 0) == result3);
+  dfd = open (".", O_RDONLY);
+  ASSERT (0 <= dfd);
+  ASSERT (test_utimens (do_utimens, false) == result1);
+  ASSERT (test_utimens (do_fdutimens, false) == result1);
+  ASSERT (test_futimens (do_futimens, false) == result2);
+  ASSERT (test_lutimens (do_lutimens, false) == result3);
+  ASSERT (test_lutimens (do_lutimens1, false) == result3);
+
+  /* Directory relative tests.  */
+  ASSERT (mkdir (BASE "dir", 0700) == 0);
+  ASSERT (chdir (BASE "dir") == 0);
+  fd = creat ("file", 0600);
+  ASSERT (0 <= fd);
+  errno = 0;
+  ASSERT (fdutimensat (AT_FDCWD, fd, ".", NULL, 0) == -1);
+  ASSERT (errno == ENOTDIR);
+  {
+    struct timespec ts[2];
+    struct stat st;
+    ts[0].tv_sec = Y2K;
+    ts[0].tv_nsec = 0;
+    ts[1] = ts[0];
+    ASSERT (fdutimensat (fd, dfd, BASE "dir/file", ts, 0) == 0);
+    ASSERT (stat ("file", &st) == 0);
+    ASSERT (st.st_atime == Y2K);
+    ASSERT (get_stat_atime_ns (&st) == 0);
+    ASSERT (st.st_mtime == Y2K);
+    ASSERT (get_stat_mtime_ns (&st) == 0);
+  }
+  ASSERT (close (fd) == 0);
+  ASSERT (close (dfd) == 0);
+  errno = 0;
+  ASSERT (fdutimensat (-1, dfd, ".", NULL, 0) == -1);
+  ASSERT (errno == EBADF);
+
+  /* Cleanup.  */
+  ASSERT (chdir ("..") == 0);
+  ASSERT (unlink (BASE "dir/file") == 0);
+  ASSERT (rmdir (BASE "dir") == 0);
+  return result1 | result2 | result3;
+}