1 files changed, 44 insertions, 0 deletions
diff --git a/lib/calloc.c b/lib/calloc.c
new file mode 100644
index 0000000..c8b1e1e
--- /dev/null
+++ b/lib/calloc.c
@@ -0,0 +1,44 @@
+/* calloc() function that is glibc compatible.
+   This wrapper function is required at least on Tru64 UNIX 5.1.
+   Copyright (C) 2004, 2005, 2006 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 2, 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, write to the Free Software Foundation,
+   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
+
+/* written by Jim Meyering */
+
+#include <config.h>
+#undef calloc
+
+#include <stdlib.h>
+
+/* Allocate and zero-fill an NxS-byte block of memory from the heap.
+   If N or S is zero, allocate and zero-fill a 1-byte block.  */
+
+void *
+rpl_calloc (size_t n, size_t s)
+{
+  size_t bytes;
+
+  if (n == 0 || s == 0)
+    return calloc (1, 1);
+
+  /* Defend against buggy calloc implementations that mishandle
+     size_t overflow.  */
+  bytes = n * s;
+  if (bytes / s != n)
+    return NULL;
+
+  return calloc (n, s);
+}