From 1daa77c167b97bf7b6047bd3deb1f4c68e3416e2 Mon Sep 17 00:00:00 2001
From: Christian Pointner <equinox@anytun.org>
Date: Thu, 10 Apr 2008 16:08:18 +0000
Subject: fixed wireshark lua script with ethernet tunneling pointer check @
 plain packet

---
 plainPacket.cpp | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

(limited to 'plainPacket.cpp')

diff --git a/plainPacket.cpp b/plainPacket.cpp
index c3aa089..ab9ccea 100644
--- a/plainPacket.cpp
+++ b/plainPacket.cpp
@@ -58,8 +58,12 @@ void PlainPacket::setPayloadType(payload_type_t payload_type)
   if(!payload_type_)
     return;
   
-  if(payload_type == PAYLOAD_TYPE_TUN)
-  {
+  if(payload_type == PAYLOAD_TYPE_TUN) {
+    if(!payload_) {
+      *payload_type_ = PAYLOAD_TYPE_T_HTON(0);
+      return;
+    }
+
     struct ip* hdr = reinterpret_cast<struct ip*>(payload_);
     if(hdr->ip_v == 4)
       *payload_type_ = PAYLOAD_TYPE_T_HTON(PAYLOAD_TYPE_TUN4);
-- 
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