--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/lib/xstrndup.h	Tue Dec 22 05:31:23 2009 +0000
@@ -0,0 +1,23 @@
+/* Duplicate a bounded initial segment of a string, with out-of-memory
+   checking.
+   Copyright (C) 2003 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/>.  */
+
+#include <stddef.h>
+
+/* Return a newly allocated copy of at most N bytes of STRING.
+   In other words, return a copy of the initial segment of length N of
+   STRING.  */
+extern char *xstrndup (const char *string, size_t n);