From 2d55efad60a9c0057844129d6e922663676cc47b Mon Sep 17 00:00:00 2001
From: Mike Karels <karels@ucbvax.Berkeley.EDU>
Date: Fri, 21 Dec 1984 02:01:19 -0800
Subject: [PATCH] add if_ifwithdstaddr

SCCS-vsn: sbin/routed/if.c 4.4
---
 usr/src/sbin/routed/if.c | 22 ++++++++++++++++++++--
 1 file changed, 20 insertions(+), 2 deletions(-)

diff --git a/usr/src/sbin/routed/if.c b/usr/src/sbin/routed/if.c
index b8ca7b6e0e..07aa4345d4 100644
--- a/usr/src/sbin/routed/if.c
+++ b/usr/src/sbin/routed/if.c
@@ -1,5 +1,5 @@
 #ifndef lint
-static char sccsid[] = "@(#)if.c	4.3 (Berkeley) %G%";
+static char sccsid[] = "@(#)if.c	4.4 (Berkeley) %G%";
 #endif
 
 /*
@@ -10,7 +10,7 @@ static char sccsid[] = "@(#)if.c	4.3 (Berkeley) %G%";
 extern	struct interface *ifnet;
 
 /*
- * Find the interface with address add.
+ * Find the interface with address addr.
  */
 struct interface *
 if_ifwithaddr(addr)
@@ -34,6 +34,24 @@ if_ifwithaddr(addr)
 	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.
-- 
2.20.1