1 files changed, 95 insertions, 0 deletions
diff --git a/gnulib-tests/test-unlinkat.c b/gnulib-tests/test-unlinkat.c
new file mode 100644
index 0000000..2c329fd
--- /dev/null
+++ b/gnulib-tests/test-unlinkat.c
@@ -0,0 +1,95 @@
+/* Tests of unlinkat.
+   Copyright (C) 2009-2022 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 <unistd.h>
+
+#include "signature.h"
+SIGNATURE_CHECK (unlinkat, int, (int, char const *, int));
+
+#include <fcntl.h>
+#include <errno.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/stat.h>
+
+#include "unlinkdir.h"
+#include "ignore-value.h"
+#include "macros.h"
+
+#define BASE "test-unlinkat.t"
+
+#include "test-rmdir.h"
+#include "test-unlink.h"
+
+static int dfd = AT_FDCWD;
+
+/* Wrapper around unlinkat to test rmdir behavior.  */
+static int
+rmdirat (char const *name)
+{
+  return unlinkat (dfd, name, AT_REMOVEDIR);
+}
+
+/* Wrapper around unlinkat to test unlink behavior.  */
+static int
+unlinker (char const *name)
+{
+  return unlinkat (dfd, name, 0);
+}
+
+int
+main (_GL_UNUSED int argc, char *argv[])
+{
+  /* FIXME: Add tests of fd other than ".".  */
+  int result1;
+  int result2;
+
+  /* Remove any leftovers from a previous partial run.  */
+  ignore_value (system ("rm -rf " BASE "*"));
+
+  /* Test behaviour for invalid file descriptors.  */
+  {
+    errno = 0;
+    ASSERT (unlinkat (-1, "foo", 0) == -1);
+    ASSERT (errno == EBADF);
+  }
+  {
+    close (99);
+    errno = 0;
+    ASSERT (unlinkat (99, "foo", 0) == -1);
+    ASSERT (errno == EBADF);
+  }
+
+  result1 = test_rmdir_func (rmdirat, false);
+  result2 = test_unlink_func (unlinker, false);
+  ASSERT (result1 == result2);
+  dfd = open (".", O_RDONLY);
+  ASSERT (0 <= dfd);
+  result2 = test_rmdir_func (rmdirat, false);
+  ASSERT (result1 == result2);
+  result2 = test_unlink_func (unlinker, false);
+  ASSERT (result1 == result2);
+  ASSERT (close (dfd) == 0);
+  if (result1 == 77)
+    fputs ("skipping test: symlinks not supported on this file system\n",
+           stderr);
+  return result1;
+}