From d0bcacd18a23c285cf2292e5368e331b80c0ab49 Mon Sep 17 00:00:00 2001
From: david <david@e0a8ed71-7df4-0310-8962-fdc924857419>
Date: Tue, 5 Apr 2011 06:12:02 +0000
Subject: [PATCH] Check if we have an interface to work with in the prerule of
 targets-sniffer.nse.

---
 scripts/targets-sniffer.nse | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/scripts/targets-sniffer.nse b/scripts/targets-sniffer.nse
index f366b1ad3..ec7bd61ff 100644
--- a/scripts/targets-sniffer.nse
+++ b/scripts/targets-sniffer.nse
@@ -58,7 +58,7 @@ local function get_ip_addresses(layer3)
 end
 
 prerule =  function()
-  return true
+  return stdnse.get_script_args("targets-sniffer.iface") or nmap.get_interface()
 end