Catch NULL pointer deref if qdcount == 0

aa67fe7a · Simon Kelley · bb2509fd · aa67fe7a
Commit aa67fe7a authored Feb 04, 2013 by Simon Kelley
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src/auth.c src/auth.c +1 -1

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--- a/src/auth.c
+++ b/src/auth.c
@@ -470,7 +470,7 @@ size_t answer_auth(struct dns_header *header, char *limit, size_t qlen, time_t n
    }
  /* Add auth section */
-  if (auth)
+  if (auth && zone)
    {
      char *authname;
      int newoffset, offset = 0;