1 files changed, 76 insertions, 0 deletions
diff --git a/gnulib-tests/test-faccessat.c b/gnulib-tests/test-faccessat.c
new file mode 100644
index 0000000..5f6ecd9
--- /dev/null
+++ b/gnulib-tests/test-faccessat.c
@@ -0,0 +1,76 @@
+/* Test checking user's permissions for a file.
+   Copyright (C) 2011-2023 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/>.  */
+
+#include <config.h>
+
+#include <unistd.h>
+
+#include "signature.h"
+SIGNATURE_CHECK (faccessat, int, (int, const char *, int, int));
+
+#include <errno.h>
+#include <fcntl.h>
+
+#include "macros.h"
+
+#define BASE "test-faccessat.t"
+
+int
+main (void)
+{
+  /* Test behaviour for invalid file descriptors.  */
+  {
+    errno = 0;
+    ASSERT (faccessat (-1, "foo", F_OK, 0) == -1);
+    ASSERT (errno == EBADF);
+  }
+  {
+    close (99);
+    errno = 0;
+    ASSERT (faccessat (99, "foo", F_OK, 0) == -1);
+    ASSERT (errno == EBADF);
+  }
+
+  /* Test behavior with trailing slash.  */
+  unlink (BASE "file");
+  ASSERT (faccessat (AT_FDCWD, ".", X_OK, 0) == 0);
+  ASSERT (faccessat (AT_FDCWD, "./", X_OK, 0) == 0);
+  ASSERT (close (open (BASE "file", O_CREAT | O_WRONLY, 0)) == 0);
+  ASSERT (faccessat (AT_FDCWD, BASE "file", F_OK, 0) == 0);
+  ASSERT (faccessat (AT_FDCWD, BASE "file/", F_OK, 0) != 0);
+  unlink (BASE "link1");
+  if (symlink (".", BASE "link1") == 0)
+    {
+      ASSERT (faccessat (AT_FDCWD, BASE "link1", X_OK, 0) == 0);
+      ASSERT (faccessat (AT_FDCWD, BASE "link1/", X_OK, 0) == 0);
+
+      unlink (BASE "link2");
+      ASSERT (symlink (BASE "file", BASE "link2") == 0);
+      ASSERT (faccessat (AT_FDCWD, BASE "link2", F_OK, 0) == 0);
+      ASSERT (faccessat (AT_FDCWD, BASE "link2/", F_OK, 0) != 0);
+      unlink (BASE "link2");
+
+      unlink (BASE "link3");
+      ASSERT (symlink (BASE "no-such-file", BASE "link3") == 0);
+      ASSERT (faccessat (AT_FDCWD, BASE "link3", F_OK, 0) != 0);
+      ASSERT (faccessat (AT_FDCWD, BASE "link3/", F_OK, 0) != 0);
+      unlink (BASE "link3");
+    }
+  unlink (BASE "link1");
+  unlink (BASE "file");
+
+  return 0;
+}