From 4da5cfebc78261d5f0057a815e405ff2e27d2c4d Mon Sep 17 00:00:00 2001
From: dmiller <dmiller@e0a8ed71-7df4-0310-8962-fdc924857419>
Date: Thu, 11 Feb 2016 23:50:48 +0000
Subject: [PATCH] Avoid blank output from broadcast-dhcp-discover

---
 scripts/broadcast-dhcp-discover.nse | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/scripts/broadcast-dhcp-discover.nse b/scripts/broadcast-dhcp-discover.nse
index a73178f94..864b5c4ab 100644
--- a/scripts/broadcast-dhcp-discover.nse
+++ b/scripts/broadcast-dhcp-discover.nse
@@ -214,6 +214,10 @@ action = function()
     end
   until next(threads) == nil
 
+  if not next(result) then
+    return nil
+  end
+
   local response = stdnse.output_table()
   -- Display the results
   for i, r in ipairs(result) do