From 98b1467a4854492706f7bc127033866c5f168ea3 Mon Sep 17 00:00:00 2001
From: dmiller <dmiller@e0a8ed71-7df4-0310-8962-fdc924857419>
Date: Wed, 12 Nov 2014 13:29:37 +0000
Subject: [PATCH] Avoid null pointer deref when getting IPv4 header options

---
 libnetutil/IPv4Header.cc | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/libnetutil/IPv4Header.cc b/libnetutil/IPv4Header.cc
index f01ddd643..b3c2c6dfa 100644
--- a/libnetutil/IPv4Header.cc
+++ b/libnetutil/IPv4Header.cc
@@ -681,7 +681,8 @@ const u8 *IPv4Header::getOpts() const {
 const u8 *IPv4Header::getOpts(int *len) const {
   if(len==NULL)
     printf("getOpts(): NULL pointer supplied.\n");
-  *len=ipoptlen;
+  else
+    *len=ipoptlen;
   return h.options;
 } /* End of getOpts() */