[src/trunk]: src/sys/netinet6 bark if sdl_alen == 0. test code for KAME PR 235.

[itojun <itojun%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/21c2cbb6035f
branches:  trunk
changeset: 484845:21c2cbb6035f
user:      itojun <itojun%NetBSD.org@localhost>
date:      Thu Apr 13 14:32:53 2000 +0000

description:
bark if sdl_alen == 0.  test code for KAME PR 235.

diffstat:

 sys/netinet6/nd6.c |  9 ++++++---
 1 files changed, 6 insertions(+), 3 deletions(-)

diffs (23 lines):

diff -r dc2cf3588bbf -r 21c2cbb6035f sys/netinet6/nd6.c
--- a/sys/netinet6/nd6.c        Thu Apr 13 14:19:57 2000 +0000
+++ b/sys/netinet6/nd6.c        Thu Apr 13 14:32:53 2000 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: nd6.c,v 1.22 2000/04/13 14:11:06 itojun Exp $  */
+/*     $NetBSD: nd6.c,v 1.23 2000/04/13 14:32:53 itojun Exp $  */
 /*     $KAME: nd6.c,v 1.41 2000/02/24 16:34:50 itojun Exp $    */
 
 /*
@@ -1866,8 +1866,11 @@
                return(0);
        }
        sdl = SDL(rt->rt_gateway);
-       if (sdl->sdl_alen != 0)
-               bcopy(LLADDR(sdl), desten, sdl->sdl_alen);
+       if (sdl->sdl_alen == 0) {
+               printf("nd6_storelladdr: sdl_alen == 0\n");
+               return(0);
+       }
 
+       bcopy(LLADDR(sdl), desten, sdl->sdl_alen);
        return(1);
 }