From 554f56b99dd4e85404e9954da4498351e7d170a1 Mon Sep 17 00:00:00 2001
From: Gregory Nutt <gnutt@nuttx.org>
Date: Thu, 11 Dec 2014 06:21:23 -0600
Subject: [PATCH] strncpy: Commit d0c76ccacf0dc8988f9617ad82bf4349f456bb08 will
 trash a lot of memory if n == 0.  From Hiro

---
 libc/string/lib_strncpy.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libc/string/lib_strncpy.c b/libc/string/lib_strncpy.c
index bd9de57a1d..bba16a0a3b 100644
--- a/libc/string/lib_strncpy.c
+++ b/libc/string/lib_strncpy.c
@@ -55,7 +55,7 @@ char *strncpy(FAR char *dest, FAR const char *src, size_t n)
   char *ret = dest;     /* Value to be returned */
   char *end = dest + n; /* End of dest buffer + 1 byte */
 
-  while ((*dest++ = *src++) != '\0' && dest != end);
+  while ((dest != end) && (*dest++ = *src++) != '\0');
   while (dest != end) *dest++ = '\0';
   return ret;
 }