From f38681367f8386ef637168f699010ca13cc2e22c Mon Sep 17 00:00:00 2001
From: tholo <tholo@openbsd.org>
Date: Sun, 2 Mar 1997 07:59:40 +0000
Subject: [PATCH] Need to get a new pointer for the IP header after doing a
 pullup on the mbuf

---
 sys/netinet/ip_output.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/sys/netinet/ip_output.c b/sys/netinet/ip_output.c
index 15db85f0ed0..0a7585d2232 100644
--- a/sys/netinet/ip_output.c
+++ b/sys/netinet/ip_output.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: ip_output.c,v 1.10 1997/03/02 07:32:15 angelos Exp $	*/
+/*	$OpenBSD: ip_output.c,v 1.11 1997/03/02 07:59:40 tholo Exp $	*/
 /*	$NetBSD: ip_output.c,v 1.28 1996/02/13 23:43:07 christos Exp $	*/
 
 /*
@@ -160,10 +160,12 @@ ip_output(m0, va_alist)
 		dst->sen_ip_src = ip->ip_src;
 		dst->sen_ip_dst = ip->ip_dst;
 		dst->sen_proto = ip->ip_p;
-		
-		if ((m->m_len < hlen + 2*sizeof(u_int16_t)) &&
-		    ((m = m_pullup(m, hlen + 2*sizeof(u_int16_t))) == 0))
+
+		if (m->m_len < hlen + 2*sizeof(u_int16_t)) {
+		    if ((m = m_pullup(m, hlen + 2*sizeof(u_int16_t))) == 0)
 			goto bad;
+		    ip = mtod(m, struct ip *);
+		}
 
 		switch (ip->ip_p) {
 		case IPPROTO_TCP:
-- 
2.20.1