add if_ifwithdstaddr

SCCS-vsn: sbin/routed/if.c 4.4

diff --git a/usr/src/sbin/routed/if.c b/usr/src/sbin/routed/if.c
index b8ca7b6..07aa434 100644 (file)
--- a/usr/src/sbin/routed/if.c
+++ b/usr/src/sbin/routed/if.c
@@ -1,5 +1,5 @@
 #ifndef lint
 #ifndef lint

-static char sccsid[] = "@(#)if.c       4.3 (Berkeley) %G%";
+static char sccsid[] = "@(#)if.c       4.4 (Berkeley) %G%";

 #endif
 
 /*
 #endif
 
 /*


@@ -10,7 +10,7 @@ static char sccsid[] = "@(#)if.c      4.3 (Berkeley) %G%";
 extern struct interface *ifnet;
 
 /*
 extern struct interface *ifnet;
 
 /*

- * Find the interface with address add.
+ * Find the interface with address addr.

  */
 struct interface *
 if_ifwithaddr(addr)
  */
 struct interface *
 if_ifwithaddr(addr)


@@ -34,6 +34,24 @@ if_ifwithaddr(addr)
        return (ifp);
 }
 
        return (ifp);
 }
 

+/*
+ * Find the point-to-point interface with destination address addr.
+ */
+struct interface *
+if_ifwithdstaddr(addr)
+       struct sockaddr *addr;
+{
+       register struct interface *ifp;
+
+       for (ifp = ifnet; ifp; ifp = ifp->int_next) {
+               if ((ifp->int_flags & IFF_POINTOPOINT) == 0)
+                       continue;
+               if (same(&ifp->int_dstaddr, addr))
+                       break;
+       }
+       return (ifp);
+}
+

 /*
  * Find the interface on the network 
  * of the specified address.
 /*
  * Find the interface on the network 
  * of the specified address.