From 0c4df7c3e67ff379f2747a522e6290618c18a2a1 Mon Sep 17 00:00:00 2001
From: Stephan Bosch <stephan.bosch@open-xchange.com>
Date: Wed, 9 Oct 2019 02:06:33 +0200
Subject: [PATCH] iputils.hh: NetmaskTree: Make the node_type key value const.

This prevents changing the key used by the tree, which would otherwise provide
an opportunity to corrupt the tree.
---
 pdns/iputils.hh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pdns/iputils.hh b/pdns/iputils.hh
index 69c9a9ec8e..97ef03855f 100644
--- a/pdns/iputils.hh
+++ b/pdns/iputils.hh
@@ -650,7 +650,7 @@ public:
 
   typedef Netmask key_type;
   typedef T value_type;
-  typedef std::pair<key_type,value_type> node_type;
+  typedef std::pair<const key_type,value_type> node_type;
   typedef size_t size_type;
   typedef class Iterator iterator;
 
-- 
2.47.2