From 8d27934396aa0570c790231645c946b55949cb49 Mon Sep 17 00:00:00 2001
From: Peter van Dijk <peter.van.dijk@powerdns.com>
Date: Tue, 1 May 2018 19:38:31 +0200
Subject: [PATCH] bindbackend: refuse launch suffixes

---
 modules/bindbackend/bindbackend2.cc | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/modules/bindbackend/bindbackend2.cc b/modules/bindbackend/bindbackend2.cc
index 3a1971fd25..e1e12ec190 100644
--- a/modules/bindbackend/bindbackend2.cc
+++ b/modules/bindbackend/bindbackend2.cc
@@ -1357,13 +1357,21 @@ class Bind2Factory : public BackendFactory
 
       DNSBackend *make(const string &suffix="")
       {
+         assertEmptySuffix(suffix);
          return new Bind2Backend(suffix);
       }
       
       DNSBackend *makeMetadataOnly(const string &suffix="")
       {
+        assertEmptySuffix(suffix);
         return new Bind2Backend(suffix, false);
       }
+   private:
+      void assertEmptySuffix(const string &suffix)
+      {
+        if(suffix.length())
+          throw PDNSException("launch= suffixes are not supported on the bindbackend");
+      }
 };
 
 //! Magic class that is activated when the dynamic library is loaded
-- 
2.47.2