From eaa7e087abc3d3338b82910a31346eb26533b004 Mon Sep 17 00:00:00 2001
From: Peter van Dijk <peter.van.dijk@powerdns.com>
Date: Mon, 18 Jan 2016 12:38:30 +0100
Subject: [PATCH] don't toString an empty dnsname

---
 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 e3a557653..2df1e9cda 100644
--- a/pdns/lua-auth.cc
+++ b/pdns/lua-auth.cc
@@ -163,7 +163,10 @@ static int ldp_getQuestion(lua_State *L) {
 
 static int ldp_getWild(lua_State *L) {
   DNSPacket *p=ldp_checkDNSPacket(L);
-  lua_pushstring(L, p->qdomainwild.toString().c_str());
+  if(p->qdomainwild.empty())
+    lua_pushnil(L);
+  else
+    lua_pushstring(L, p->qdomainwild.toString().c_str());
   return 1;
 }
 
-- 
2.40.0