From e12b3374aa5de1dd755bc4a7885ca555c6e64d3c Mon Sep 17 00:00:00 2001
From: Remi Gacogne <rgacogne-github@coredump.fr>
Date: Fri, 6 Nov 2015 15:25:20 +0100
Subject: [PATCH] Display "No traffic yet." when showResponseLatency() is
 called before any packet has been processed. Fixes #2865.

---
 pdns/dnsdist-lua.cc | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/pdns/dnsdist-lua.cc b/pdns/dnsdist-lua.cc
index 8d10c9fc1..a7bc22147 100644
--- a/pdns/dnsdist-lua.cc
+++ b/pdns/dnsdist-lua.cc
@@ -750,6 +750,11 @@ vector<std::function<void(void)>> setupLua(bool client, const std::string& confi
 	}
       }
 
+      if (size == 0) {
+        g_outputBuffer = "No traffic yet.\n";
+        return;
+      }
+
       g_outputBuffer = (boost::format("Average response latency: %.02f msec\n") % (0.001*totlat/size)).str();
       double highest=0;
       
-- 
2.40.0