1 files changed, 89 insertions, 0 deletions
diff --git a/gnulib-tests/test-symlinkat.c b/gnulib-tests/test-symlinkat.c
new file mode 100644
index 0000000..68efffd
--- /dev/null
+++ b/gnulib-tests/test-symlinkat.c
@@ -0,0 +1,89 @@
+/* Tests of symlinkat.
+   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 (symlinkat, int, (char const *, int, char const *));
+
+#include <fcntl.h>
+#include <errno.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/stat.h>
+
+#include "ignore-value.h"
+#include "macros.h"
+
+#ifndef HAVE_SYMLINK
+# define HAVE_SYMLINK 0
+#endif
+
+#define BASE "test-symlinkat.t"
+
+#include "test-symlink.h"
+
+static int dfd = AT_FDCWD;
+
+static int
+do_symlink (char const *contents, char const *name)
+{
+  return symlinkat (contents, dfd, name);
+}
+
+int
+main (void)
+{
+  int result;
+
+  /* Remove any leftovers from a previous partial run.  */
+  ignore_value (system ("rm -rf " BASE "*"));
+
+  /* Test behaviour for invalid file descriptors.  */
+  {
+    errno = 0;
+    ASSERT (symlinkat ("foo", -1, "bar") == -1);
+    ASSERT (errno == EBADF
+            || errno == ENOSYS /* seen on mingw */
+           );
+  }
+  {
+    close (99);
+    errno = 0;
+    ASSERT (symlinkat ("foo", 99, "bar") == -1);
+    ASSERT (errno == EBADF
+            || errno == ENOSYS /* seen on mingw */
+           );
+  }
+
+  /* Perform same checks as counterpart functions.  */
+  result = test_symlink (do_symlink, false);
+  dfd = openat (AT_FDCWD, ".", O_RDONLY);
+  ASSERT (0 <= dfd);
+  ASSERT (test_symlink (do_symlink, false) == result);
+
+  ASSERT (close (dfd) == 0);
+  if (result == 77)
+    fputs ("skipping test: symlinks not supported on this file system\n",
+           stderr);
+  return result;
+}