From 7e7de0c9da0646d79fd015ee34d665c2fa0559d0 Mon Sep 17 00:00:00 2001
From: Sam Leffler <sam@ucbvax.Berkeley.EDU>
Date: Wed, 3 Nov 1982 06:28:06 -0800
Subject: [PATCH] date and time created 82/11/02 22:28:06 by sam

SCCS-vsn: sbin/routed/output.c 4.1
---
 usr/src/sbin/routed/output.c | 88 ++++++++++++++++++++++++++++++++++++
 1 file changed, 88 insertions(+)
 create mode 100644 usr/src/sbin/routed/output.c

diff --git a/usr/src/sbin/routed/output.c b/usr/src/sbin/routed/output.c
new file mode 100644
index 0000000000..7fcd3b6710
--- /dev/null
+++ b/usr/src/sbin/routed/output.c
@@ -0,0 +1,88 @@
+#ifndef lint
+static char sccsid[] = "@(#)output.c	4.1 %G%";
+#endif
+
+/*
+ * Routing Table Management Daemon
+ */
+#include "router.h"
+
+/*
+ * Apply the function "f" to all non-passive
+ * interfaces.  If the interface supports the
+ * use of broadcasting use it, otherwise address
+ * the output to the known router.
+ */
+toall(f)
+	int (*f)();
+{
+	register struct interface *ifp;
+	register struct sockaddr *dst;
+	extern struct interface *ifnet;
+
+	for (ifp = ifnet; ifp; ifp = ifp->int_next) {
+		if (ifp->int_flags & IFF_PASSIVE)
+			continue;
+		dst = ifp->int_flags & IFF_BROADCAST ? &ifp->int_broadaddr :
+		      ifp->int_flags & IFF_POINTOPOINT ? &ifp->int_dstaddr :
+		      &ifp->int_addr;
+		(*f)(dst, ifp->int_flags & IFF_INTERFACE, ifp);
+	}
+}
+
+/*
+ * Output a preformed packet.
+ */
+/*ARGSUSED*/
+sendmsg(dst, dontroute, ifp)
+	struct sockaddr *dst;
+	int dontroute;
+	struct interface *ifp;
+{
+
+	(*afswitch[dst->sa_family].af_output)(dontroute ? snoroute : s,
+		dst, sizeof (struct rip));
+	TRACE_OUTPUT(ifp, dst, sizeof (struct rip));
+}
+
+/*
+ * Supply dst with the contents of the routing tables.
+ * If this won't fit in one packet, chop it up into several.
+ */
+supply(dst, dontroute, ifp)
+	struct sockaddr *dst;
+	struct interface *ifp;
+{
+	register struct rt_entry *rt;
+	struct netinfo *n = msg->rip_nets;
+	register struct rthash *rh;
+	struct rthash *base = hosthash;
+	int doinghost = 1, size;
+	int (*output)() = afswitch[dst->sa_family].af_output;
+	int sto = dontroute ? snoroute : s;
+
+	msg->rip_cmd = RIPCMD_RESPONSE;
+again:
+	for (rh = base; rh < &base[ROUTEHASHSIZ]; rh++)
+	for (rt = rh->rt_forw; rt != (struct rt_entry *)rh; rt = rt->rt_forw) {
+		size = (char *)n - packet;
+		if (size > MAXPACKETSIZE - sizeof (struct netinfo)) {
+			(*output)(sto, dst, size);
+			TRACE_OUTPUT(ifp, dst, size);
+			n = msg->rip_nets;
+		}
+		n->rip_dst = rt->rt_dst;
+		n->rip_metric = min(rt->rt_metric + 1, HOPCNT_INFINITY);
+		n++;
+	}
+	if (doinghost) {
+		doinghost = 0;
+		base = nethash;
+		goto again;
+	}
+	if (n != msg->rip_nets) {
+		size = (char *)n - packet;
+		(*output)(sto, dst, size);
+		TRACE_OUTPUT(ifp, dst, size);
+	}
+}
-- 
2.20.1