From 9d343ea1c1610223f2613aadcbe7b9b954abd375 Mon Sep 17 00:00:00 2001
From: David Maloney <David_Maloney@rapid7.com>
Date: Thu, 8 Mar 2012 11:03:33 -0600
Subject: [PATCH] Fix to dividie by zero issue in scannenr progress method

---
 lib/msf/core/auxiliary/scanner.rb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/msf/core/auxiliary/scanner.rb b/lib/msf/core/auxiliary/scanner.rb
index 90112518da..8c91818d51 100644
--- a/lib/msf/core/auxiliary/scanner.rb
+++ b/lib/msf/core/auxiliary/scanner.rb
@@ -39,7 +39,7 @@ def run
 	@show_percent  = datastore['ShowProgressPercent'].to_i
 
 	ar             = Rex::Socket::RangeWalker.new(datastore['RHOSTS'])
-	@range_count   = ar.length
+	@range_count   = ar.length || 0
 	@range_done    = 0
 	@range_percent = 0