From 7552cbcc472a585a7e8b64ed2aae502b75d1ee5a Mon Sep 17 00:00:00 2001
From: Pieter Wuille <sipa@ulyssis.org>
Date: Sun, 28 Apr 2013 03:22:22 +0200
Subject: [PATCH] Ignore nonzero Z in requests

---
 dns.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/dns.c b/dns.c
index b01196c..e7c0de1 100644
--- a/dns.c
+++ b/dns.c
@@ -251,8 +251,6 @@ ssize_t static dnshandle(dns_opt_t *opt, const unsigned char *inbuf, size_t insi
   if (inbuf[2] & 128) { /* printf("Got response?\n"); */ error = 1; goto error; }
   // check opcode
   if (((inbuf[2] & 120) >> 3) != 0) { /* printf("Opcode nonzero?\n"); */ error = 4; goto error; }
-  // check Z
-  if (((inbuf[3] & 112) >> 4) != 0) { /* printf("Z nonzero?\n"); */ error = 1; goto error; }
   // unset TC
   outbuf[2] &= ~2;
   // unset RA