dirent-safer: new module

* modules/dirent-safer: New file.
* lib/dirent--.h: Likewise.
* lib/dirent-safer.h: Likewise.
* lib/opendir-safer.c: Likewise.
* m4/dirent-safer.m4: Likewise.
* MODULES.html.sh (Enhancements for POSIX:2008): Mention it.
* modules/dirent-safer-tests: New test.
* tests/test-dirent-safer.c: New file.
* lib/fdopendir.c (includes): Ensure fdopendir is also safe.

Signed-off-by: Eric Blake <ebb9@byu.net>

1 files changed, 22 insertions, 0 deletions

diff --git a/lib/dirent-safer.h b/lib/dirent-safer.h
new file mode 100644
index 0000000000..0debe26bf7
--- /dev/null
+++ b/lib/dirent-safer.h
@@ -0,0 +1,22 @@
+/* Invoke dirent-like functions, but avoid some glitches.
+
+   Copyright (C) 2009 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 <http://www.gnu.org/licenses/>.  */
+
+/* Written by Eric Blake.  */
+
+#include <dirent.h>
+
+DIR *opendir_safer (const char *name);