From 4743dfd070a5f1ce69299f920ca6b85a1c128330 Mon Sep 17 00:00:00 2001
From: Peter van Dijk <peter.van.dijk@powerdns.com>
Date: Mon, 5 Dec 2016 16:29:49 +0100
Subject: [PATCH] avoid undefined behaviour in clang vs. gcc

---
 pdns/pdnsutil.cc | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/pdns/pdnsutil.cc b/pdns/pdnsutil.cc
index 092fd81e9d..7f99c2d3c7 100644
--- a/pdns/pdnsutil.cc
+++ b/pdns/pdnsutil.cc
@@ -1668,12 +1668,14 @@ bool showZone(DNSSECKeeper& dk, const DNSName& zone, bool exportDS = false)
       cout<<prefix<<zone.toString()<<" IN DS "<<makeDSFromDNSKey(zone, key, 1).getZoneRepresentation() << " ; ( SHA1 digest )" << endl;
       cout<<prefix<<zone.toString()<<" IN DS "<<makeDSFromDNSKey(zone, key, 2).getZoneRepresentation() << " ; ( SHA256 digest )" << endl;
       try {
-        cout<<prefix<<zone.toString()<<" IN DS "<<makeDSFromDNSKey(zone, key, 3).getZoneRepresentation() << " ; ( GOST R 34.11-94 digest )" << endl;
+        string output=makeDSFromDNSKey(zone, key, 3).getZoneRepresentation();
+        cout<<prefix<<zone.toString()<<" IN DS "<<output<< " ; ( GOST R 34.11-94 digest )" << endl;
       }
       catch(...)
       {}
       try {
-        cout<<prefix<<zone.toString()<<" IN DS "<<makeDSFromDNSKey(zone, key, 4).getZoneRepresentation() << " ; ( SHA-384 digest )" << endl;
+        string output=makeDSFromDNSKey(zone, key, 4).getZoneRepresentation();
+        cout<<prefix<<zone.toString()<<" IN DS "<<output<< " ; ( SHA-384 digest )" << endl;
       }
       catch(...)
       {}
@@ -1717,12 +1719,14 @@ bool showZone(DNSSECKeeper& dk, const DNSName& zone, bool exportDS = false)
         cout<<prefix<<zone.toString()<<" IN DS "<<makeDSFromDNSKey(zone, key, 1).getZoneRepresentation() << " ; ( SHA1 digest )" << endl;
         cout<<prefix<<zone.toString()<<" IN DS "<<makeDSFromDNSKey(zone, key, 2).getZoneRepresentation() << " ; ( SHA256 digest )" << endl;
         try {
-          cout<<prefix<<zone.toString()<<" IN DS "<<makeDSFromDNSKey(zone, key, 3).getZoneRepresentation() << " ; ( GOST R 34.11-94 digest )" << endl;
+          string output=makeDSFromDNSKey(zone, key, 3).getZoneRepresentation();
+          cout<<prefix<<zone.toString()<<" IN DS "<<output<< " ; ( GOST R 34.11-94 digest )" << endl;
         }
         catch(...)
         {}
         try {
-          cout<<prefix<<zone.toString()<<" IN DS "<<makeDSFromDNSKey(zone, key, 4).getZoneRepresentation() << " ; ( SHA-384 digest )" << endl;
+          string output=makeDSFromDNSKey(zone, key, 4).getZoneRepresentation();
+          cout<<prefix<<zone.toString()<<" IN DS "<<output<< " ; ( SHA-384 digest )" << endl;
         }
         catch(...)
         {}
-- 
2.47.2