From c0adb90e2855fa7861a2e122a98ef40a4bba3f28 Mon Sep 17 00:00:00 2001
From: kroosec <kroosec@e0a8ed71-7df4-0310-8962-fdc924857419>
Date: Sat, 23 Jun 2012 17:54:31 +0000
Subject: [PATCH] getHeader is now case insensitive.

---
 nselib/sip.lua | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/nselib/sip.lua b/nselib/sip.lua
index 42f48de58..e539ca5e7 100644
--- a/nselib/sip.lua
+++ b/nselib/sip.lua
@@ -429,7 +429,9 @@ Response = {
 	getHeader = function(self,name)
 		for _, line in ipairs(self.tbl) do
 			local header, value = line:match("^(.-): (.*)$")
-			if ( header == name ) then return value end
+			if ( header and header:lower() == name:lower() ) then
+			    return value 
+			end
 		end
 	end,