--- /dev/null
+++ Libc/Libc-1353.100.2/secure/snprintf_chk.c
@@ -0,0 +1,66 @@
+/*
+ * Copyright (c) 2007-2013 Apple Inc. All rights reserved.
+ *
+ * @APPLE_LICENSE_HEADER_START@
+ *
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this
+ * file.
+ *
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
+ *
+ * @APPLE_LICENSE_HEADER_END@
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <stdarg.h>
+#include <limits.h>
+#include "secure.h"
+
+int
+__snprintf_chk (char *dest, size_t len, int flags, size_t dstlen,
+		const char *format, ...)
+{
+  va_list arg;
+  int done;
+
+  if (__builtin_expect (dstlen < len, 0))
+    __chk_fail_overflow ();
+
+  va_start (arg, format);
+
+  done = vsnprintf (dest, len, format, arg);
+
+  va_end (arg);
+
+  return done;
+}
+
+int
+__snprintf_object_size_chk (char *dest, size_t dstlen, size_t len,
+const char *format, ...)
+{
+    va_list arg;
+    int done;
+
+    if (__builtin_expect (dstlen < len, 0))
+        __chk_fail_overflow ();
+
+    va_start (arg, format);
+
+    done = vsnprintf (dest, len, format, arg);
+
+    va_end (arg);
+
+    return done;
+}