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From: Dimitry Andric <dim@FreeBSD.org>
Date: Fri, 15 Feb 2013 23:59:58 +0000 (UTC)
To: src-committers@freebsd.org, svn-src-all@freebsd.org,
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Subject: svn commit: r246860 - head/usr.bin/mail
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Author: dim
Date: Fri Feb 15 23:59:57 2013
New Revision: 246860
URL: http://svnweb.freebsd.org/changeset/base/246860

Log:
  Fix undefined behaviour in usr.bin/mail/util.c.
  
  Reported by:	deeptech71@gmail.com
  MFC after:	3 days

Modified:
  head/usr.bin/mail/util.c

Modified: head/usr.bin/mail/util.c
==============================================================================
--- head/usr.bin/mail/util.c	Fri Feb 15 23:41:47 2013	(r246859)
+++ head/usr.bin/mail/util.c	Fri Feb 15 23:59:57 2013	(r246860)
@@ -236,8 +236,8 @@ istrncpy(char *dest, const char *src, si
 {
 
 	strlcpy(dest, src, dsize);
-	while (*dest)
-		*dest++ = tolower((unsigned char)*dest);
+	for (; *dest; dest++)
+		*dest = tolower((unsigned char)*dest);
 }
 
 /*