From f8abe0c566eee647dc3f7a8394ba61d41ff6d575 Mon Sep 17 00:00:00 2001
From: Simon Kelley <simon@thekelleys.org.uk>
Date: Sat, 15 Dec 2012 11:59:25 +0000
Subject: [PATCH] Fix crash in auth code for queries where class != C_IN

---
 src/auth.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/auth.c b/src/auth.c
index a59a1b5..5ac6f21 100644
--- a/src/auth.c
+++ b/src/auth.c
@@ -117,7 +117,10 @@ size_t answer_auth(struct dns_header *header, char *limit, size_t qlen, time_t n
       GETSHORT(qclass, p);
       
       if (qclass != C_IN)
-	continue;
+	{
+	  auth = 0;
+	  continue;
+	}
 
       if (qtype == T_PTR)
 	{