From b2a8e274755df081767745b6439e8eb29ac4c9bc Mon Sep 17 00:00:00 2001
From: Evan Broder <broder@mit.edu>
Date: Mon, 23 Jun 2008 21:57:35 -0400
Subject: [PATCH] Empty the authority and additional sections to prevent
 infinite loops if there is no response

svn path=/trunk/packages/sipb-xen-dns/; revision=650
---
 code/dnsserver.py |    3 +++
 1 file changed, 3 insertions(+)

diff --git a/code/dnsserver.py b/code/dnsserver.py
index 9da9eda..ae46d4c 100755
--- a/code/dnsserver.py
+++ b/code/dnsserver.py
@@ -87,6 +87,9 @@ class DatabaseAuthority(common.ResolverBase):
             elif type == dns.SOA:
                 results.append(dns.RRHeader(domain, dns.SOA, dns.IN,
                                             ttl, self.soa, auth=True))
+            if len(results) == 0:
+                authority = []
+                additional = []
             return defer.succeed((results, authority, additional))
         else:
             #Doesn't exist
-- 
1.7.9.5