From 0541e456c99088d0cfcf7eae1564f6e59e1429d5 Mon Sep 17 00:00:00 2001
From: Roman Kurakin <rik@FreeBSD.org>
Date: Sat, 9 Jul 2005 16:14:05 +0000
Subject: [PATCH] Use m_length (m, NULL) instead of m->m_pkthdr.len.

Problems reported by: strijar at urai dot ru
Approved by:	re (scottl)
---
 sys/dev/cp/if_cp.c   | 2 +-
 sys/dev/ctau/if_ct.c | 2 +-
 sys/dev/cx/if_cx.c   | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/sys/dev/cp/if_cp.c b/sys/dev/cp/if_cp.c
index bd18f2561f5..a5692fdc543 100644
--- a/sys/dev/cp/if_cp.c
+++ b/sys/dev/cp/if_cp.c
@@ -824,7 +824,7 @@ static void cp_send (drv_t *d)
 		if (d->ifp->if_bpf)
 			BPF_MTAP (d->ifp, m);
 #endif
-		len = m->m_pkthdr.len;
+		len = m_length (m, NULL);
 		if (len >= BUFSZ)
 			printf ("%s: too long packet: %d bytes: ",
 				d->name, len);
diff --git a/sys/dev/ctau/if_ct.c b/sys/dev/ctau/if_ct.c
index f026a9fbbc0..f231820816e 100644
--- a/sys/dev/ctau/if_ct.c
+++ b/sys/dev/ctau/if_ct.c
@@ -1033,7 +1033,7 @@ static void ct_send (drv_t *d)
 		if (d->ifp->if_bpf)
 			BPF_MTAP (d->ifp, m);
 #endif
-		len = m->m_pkthdr.len;
+		len = m_length (m, NULL);
 		if (! m->m_next)
 			ct_send_packet (d->chan, (u_char*)mtod (m, caddr_t),
 				len, 0);
diff --git a/sys/dev/cx/if_cx.c b/sys/dev/cx/if_cx.c
index 4f757f6c3ee..7b0425e412e 100644
--- a/sys/dev/cx/if_cx.c
+++ b/sys/dev/cx/if_cx.c
@@ -1188,7 +1188,7 @@ static void cx_send (drv_t *d)
 		if (d->ifp->if_bpf)
 			BPF_MTAP (d->ifp, m);
 #endif
-		len = m->m_pkthdr.len;
+		len = m_length (m, NULL);
 		if (! m->m_next)
 			cx_send_packet (d->chan, (u_char*)mtod (m, caddr_t),
 				len, 0);