From 61cc96317a1d67aca918d6f01e463719168f1648 Mon Sep 17 00:00:00 2001
From: deraadt <deraadt@openbsd.org>
Date: Thu, 30 Jan 1997 22:43:11 +0000
Subject: [PATCH] deal with IP_HDRINCL option network byte order change;
 lidl@va.pubnix.com

---
 sbin/ping/ping.c                 | 8 ++++----
 usr.sbin/mrouted/igmp.c          | 6 +++---
 usr.sbin/traceroute/traceroute.c | 4 ++--
 3 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/sbin/ping/ping.c b/sbin/ping/ping.c
index 330326d126a..14c241f2399 100644
--- a/sbin/ping/ping.c
+++ b/sbin/ping/ping.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: ping.c,v 1.13 1997/01/15 23:41:36 millert Exp $	*/
+/*	$OpenBSD: ping.c,v 1.14 1997/01/30 22:43:14 deraadt Exp $	*/
 /*	$NetBSD: ping.c,v 1.20 1995/08/11 22:37:58 cgd Exp $	*/
 
 /*
@@ -47,7 +47,7 @@ static char copyright[] =
 #if 0
 static char sccsid[] = "@(#)ping.c	8.1 (Berkeley) 6/5/93";
 #else
-static char rcsid[] = "$OpenBSD: ping.c,v 1.13 1997/01/15 23:41:36 millert Exp $";
+static char rcsid[] = "$OpenBSD: ping.c,v 1.14 1997/01/30 22:43:14 deraadt Exp $";
 #endif
 #endif /* not lint */
 
@@ -377,7 +377,7 @@ main(argc, argv)
 		ip->ip_hl = sizeof(struct ip) >> 2;
 		ip->ip_tos = tos;
 		ip->ip_id = 0;  
-		ip->ip_off = (df?IP_DF:0);
+		ip->ip_off = htons(df?IP_DF:0);
 		ip->ip_ttl = ttl;
 		ip->ip_p = proto->p_proto;
 		ip->ip_src.s_addr = INADDR_ANY;
@@ -553,7 +553,7 @@ pinger()
 
 		packet = (char*)ip;
 		cc += sizeof(struct ip);
-		ip->ip_len = cc;
+		ip->ip_len = htons(cc);
 		ip->ip_sum = in_cksum((u_short *)outpackhdr, cc);
 	}
 
diff --git a/usr.sbin/mrouted/igmp.c b/usr.sbin/mrouted/igmp.c
index 1b623ba42ff..2efb6d319b3 100644
--- a/usr.sbin/mrouted/igmp.c
+++ b/usr.sbin/mrouted/igmp.c
@@ -55,7 +55,7 @@ init_igmp()
     ip->ip_hl  = sizeof(struct ip) >> 2;
     ip->ip_v   = IPVERSION;
     ip->ip_tos = 0;
-    ip->ip_off = 0;
+    ip->ip_off = htons(0);
     ip->ip_p   = IPPROTO_IGMP;
     ip->ip_ttl = MAXTTL;	/* applies to unicasts only */
 
@@ -314,7 +314,7 @@ send_igmp(src, dst, type, code, group, datalen)
     ip                      = (struct ip *)send_buf;
     ip->ip_src.s_addr       = src;
     ip->ip_dst.s_addr       = dst;
-    ip->ip_len              = MIN_IP_HEADER_LEN + IGMP_MINLEN + datalen;
+    ip->ip_len              = htons(MIN_IP_HEADER_LEN + IGMP_MINLEN + datalen);
 
     igmp                    = (struct igmp *)(send_buf + MIN_IP_HEADER_LEN);
     igmp->igmp_type         = type;
@@ -338,7 +338,7 @@ send_igmp(src, dst, type, code, group, datalen)
     sdst.sin_len = sizeof(sdst);
 #endif
     sdst.sin_addr.s_addr = dst;
-    if (sendto(igmp_socket, send_buf, ip->ip_len, 0,
+    if (sendto(igmp_socket, send_buf, ntohs(ip->ip_len), 0,
 			(struct sockaddr *)&sdst, sizeof(sdst)) < 0) {
 	if (errno == ENETDOWN)
 	    check_vif_state();
diff --git a/usr.sbin/traceroute/traceroute.c b/usr.sbin/traceroute/traceroute.c
index da93f7b8411..ab33f769f7f 100644
--- a/usr.sbin/traceroute/traceroute.c
+++ b/usr.sbin/traceroute/traceroute.c
@@ -432,7 +432,7 @@ main(argc, argv)
 		ip->ip_dst = gateway[0];
 	} else
 		ip->ip_dst = to.sin_addr;
-	ip->ip_off = 0;
+	ip->ip_off = htons(0);
 	ip->ip_hl = (sizeof(struct ip) + lsrrlen) >> 2;
 	ip->ip_p = IPPROTO_UDP;
 	ip->ip_v = IPVERSION;
@@ -618,7 +618,7 @@ send_probe(seq, ttl, to)
 	struct packetdata *op = (struct packetdata *)(up + 1);
 	int i;
 
-	ip->ip_len = datalen;
+	ip->ip_len = htons(datalen);
 	ip->ip_ttl = ttl;
 	ip->ip_id = htons(ident+seq);
 
-- 
2.20.1