From f658709de89cef8e408a9f8a6b1854d3d165a22d Mon Sep 17 00:00:00 2001
From: =?utf8?q?H=C3=A5kan=20Lindqvist?= <h@qw.se>
Date: Sun, 6 Mar 2016 03:06:00 +0100
Subject: [PATCH] Handle queries that do not match any zone in Lua getZone call

---
 pdns/lua-auth.cc | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/pdns/lua-auth.cc b/pdns/lua-auth.cc
index 2df1e9cda0..47c7edb3c1 100644
--- a/pdns/lua-auth.cc
+++ b/pdns/lua-auth.cc
@@ -172,7 +172,10 @@ static int ldp_getWild(lua_State *L) {
 
 static int ldp_getZone(lua_State *L) {
   DNSPacket *p=ldp_checkDNSPacket(L);
-  lua_pushstring(L, p->qdomainzone.toString().c_str());
+  if(p->qdomainzone.empty())
+    lua_pushnil(L);
+  else
+    lua_pushstring(L, p->qdomainzone.toString().c_str());
   return 1;
 }
 
-- 
2.47.2