--- Libc/Libc-1725.40.4/secure/strcpy_chk.c
+++ Libc/Libc-583/secure/strcpy_chk.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2007-2013 Apple Inc. All rights reserved.
+ * Copyright (c) 2007 Apple Inc. All rights reserved.
  *
  * @APPLE_LICENSE_HEADER_START@
  *
@@ -23,19 +23,16 @@
 
 #include <stdlib.h>
 #include <string.h>
-#include "secure.h"
 
-char *
+extern void __chk_fail (void) __attribute__((__noreturn__));
+
+void *
 __strcpy_chk (char *restrict dest, char *restrict src, size_t dstlen)
 {
-  // stpcpy returns a pointer to the \0
-  size_t len = stpcpy(dest, src) - dest + 1;
+  size_t len = strlen (src);
 
   if (__builtin_expect (dstlen < len, 0))
-    __chk_fail_overflow ();
+    __chk_fail ();
 
-  if (__builtin_expect (__chk_assert_no_overlap != 0, 1))
-    __chk_overlap(dest, len, src, len);
-
-  return dest;
+  return memcpy (dest, src, len + 1);
 }