From aceb8b30f71fd414c61e4301f784b38b369ab1a6 Mon Sep 17 00:00:00 2001
From: Frank Denis <github@pureftpd.org>
Date: Sat, 20 Jan 2018 20:37:02 +0100
Subject: [PATCH] AAAA filter: Reject instead of sending an empty response

Empty responses can cause issues with CNAME records
---
 dnscrypt-proxy/plugin_block_ipv6.go | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/dnscrypt-proxy/plugin_block_ipv6.go b/dnscrypt-proxy/plugin_block_ipv6.go
index 79a8d431..eca40b77 100644
--- a/dnscrypt-proxy/plugin_block_ipv6.go
+++ b/dnscrypt-proxy/plugin_block_ipv6.go
@@ -33,11 +33,6 @@ func (plugin *PluginBlockIPv6) Eval(pluginsState *PluginsState, msg *dns.Msg) er
 	if question.Qclass != dns.ClassINET || question.Qtype != dns.TypeAAAA {
 		return nil
 	}
-	synth, err := EmptyResponseFromMessage(msg)
-	if err != nil {
-		return err
-	}
-	pluginsState.synthResponse = synth
-	pluginsState.action = PluginsActionSynth
+	pluginsState.action = PluginsActionReject
 	return nil
 }