From 0b8eebcacef03bbd0b20c9f4d7e635dfced08987 Mon Sep 17 00:00:00 2001
From: James Lee <James_Lee@rapid7.com>
Date: Fri, 3 Sep 2010 23:48:46 +0000
Subject: [PATCH] make sure sets has something in it.  lib/msf/core/exploit.rb
 sends this a nil if the user didn't specify anything

git-svn-id: file:///home/svn/framework3/trunk@10235 4d416f70-5f16-0410-b530-b9f4589650da
---
 lib/rex/text.rb | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/lib/rex/text.rb b/lib/rex/text.rb
index 755ca62d17..a7d12bd6ad 100644
--- a/lib/rex/text.rb
+++ b/lib/rex/text.rb
@@ -756,6 +756,8 @@ module Text
 		buf = ''
 		idx = 0
 		offsets = []
+		# Make sure there's something in sets even if we were given an explicit nil
+		sets ||= [ UpperAlpha, LowerAlpha, Numerals ]
 
 		sets.length.times { offsets << 0 }