minor efficiency

SCCS-vsn: sbin/routed/input.c 4.8

diff --git a/usr/src/sbin/routed/input.c b/usr/src/sbin/routed/input.c
index 058e6f7..a09aea9 100644 (file)
--- a/usr/src/sbin/routed/input.c
+++ b/usr/src/sbin/routed/input.c
@@ -1,5 +1,5 @@
 #ifndef lint
 #ifndef lint

-static char sccsid[] = "@(#)input.c    4.7 (Berkeley) %G%";
+static char sccsid[] = "@(#)input.c    4.8 (Berkeley) %G%";

 #endif
 
 /*
 #endif
 
 /*


@@ -118,10 +118,11 @@ rip_input(from, size)
                        }
 
                        /*
                        }
 
                        /*

-                        * Update if from gateway, shorter, or getting
-                        * stale and equivalent.
+                        * Update if from gateway and different,
+                        * shorter, or getting stale and equivalent.

                         */
                         */

-                       if (equal(from, &rt->rt_router) ||
+                       if ((equal(from, &rt->rt_router) &&
+                           n->rip_metric != rt->rt_metric ) ||

                            (unsigned) (n->rip_metric) < rt->rt_metric ||
                            (rt->rt_timer > (EXPIRE_TIME/2) &&
                            rt->rt_metric == n->rip_metric)) {
                            (unsigned) (n->rip_metric) < rt->rt_metric ||
                            (rt->rt_timer > (EXPIRE_TIME/2) &&
                            rt->rt_metric == n->rip_metric)) {