From 96754ab490713d112573dea1937460e93e78b737 Mon Sep 17 00:00:00 2001
From: Jun-ichiro itojun Hagino <itojun@cvs.openbsd.org>
Date: Thu, 5 Jul 2001 23:41:35 +0000
Subject: IP6_EXTHDR_GET0 did not check m->m_len (noone was using this macro).
 sync with kame

---
 sys/netinet/ip6.h | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/sys/netinet/ip6.h b/sys/netinet/ip6.h
index c189cc9d5f3..c86728cdbc8 100644
--- a/sys/netinet/ip6.h
+++ b/sys/netinet/ip6.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: ip6.h,v 1.7 2001/06/09 07:03:41 angelos Exp $	*/
+/*	$OpenBSD: ip6.h,v 1.8 2001/07/05 23:41:34 itojun Exp $	*/
 /*	$KAME: ip6.h,v 1.14 2000/10/09 01:04:09 itojun Exp $	*/
 
 /*
@@ -280,8 +280,8 @@ do {									\
 #define IP6_EXTHDR_GET0(val, typ, m, off, len) \
 do {									\
 	struct mbuf *t;							\
-	if ((off) == 0)							\
-		(val) = (typ)mtod(m, caddr_t);				\
+	if ((off) == 0 && (m)->m_len >= len)				\
+		(val) = (typ)mtod((m), caddr_t);			\
 	else {								\
 		t = m_pulldown((m), (off), (len), NULL);		\
 		if (t) {						\
-- 
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