Index: sys/net/route.c
===================================================================
RCS file: /cvsroot/src/sys/net/route.c,v
retrieving revision 1.125
diff -u -p -u -r1.125 route.c
--- sys/net/route.c	31 Mar 2011 19:40:52 -0000	1.125
+++ sys/net/route.c	30 Jan 2012 11:27:38 -0000
@@ -909,8 +909,8 @@ rt_maskedcopy(const struct sockaddr *src
 	const char *netmaskp = &netmask->sa_data[0],
 	           *srcp = &src->sa_data[0];
 	char *dstp = &dst->sa_data[0];
-	const char *maskend = dstp + MIN(netmask->sa_len, src->sa_len);
-	const char *srcend = dstp + src->sa_len;
+	const char *maskend = (char *)dst + MIN(netmask->sa_len, src->sa_len);
+	const char *srcend = (char *)dst + src->sa_len;
 
 	dst->sa_len = src->sa_len;
 	dst->sa_family = src->sa_family;