access: New module.

* lib/unistd.in.h (access): New declaration.
* lib/access.c: New file.
* m4/access.m4: New file.
* m4/unistd_h.m4 (gl_UNISTD_H): Test whether access is declared.
(gl_UNISTD_H_DEFAULTS): Initialize GNULIB_ACCESS, REPLACE_ACCESS.
* modules/unistd (Makefile.am): Substitute GNULIB_ACCESS,
REPLACE_ACCESS.
* modules/access: New file.
* tests/test-unistd-c++.cc (access): Check signature.
* doc/posix-functions/access.texi: Mention the new module.

1 files changed, 31 insertions, 0 deletions

diff --git a/lib/access.c b/lib/access.c
new file mode 100644
index 0000000000..210f7f4072
--- /dev/null
+++ b/lib/access.c
@@ -0,0 +1,31 @@
+/* Test the access rights of a file.
+   Copyright (C) 2019 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>
+
+/* Specification.  */
+#include <unistd.h>
+
+#include <fcntl.h>
+#include <io.h>
+
+int
+access (const char *file, int mode)
+{
+  if ((mode & X_OK) != 0)
+    mode = (mode & ~X_OK) | R_OK;
+  return _access (file, mode);
+}