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

diff --git a/sys/netinet6/nd6.c b/sys/netinet6/nd6.c
index c2def8c..e1e60e6 100644 (file)
--- a/sys/netinet6/nd6.c
+++ b/sys/netinet6/nd6.c
@@ -1,4 +1,4 @@
-/*     $OpenBSD: nd6.c,v 1.8 2000/04/13 14:11:17 itojun Exp $  */
+/*     $OpenBSD: nd6.c,v 1.9 2000/04/13 14:34:10 itojun Exp $  */
 /*     $KAME: nd6.c,v 1.41 2000/02/24 16:34:50 itojun Exp $    */
 
 /*
@@ -1858,8 +1858,11 @@ nd6_storelladdr(ifp, rt, m, dst, desten)
                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);
 }