Squashed commit of the following:

commit dadb717f5e17851a85183847f3fdb01e45e6caaa
Author: James Lee <egypt@metasploit.com>
Date:   Fri Aug 3 18:48:53 2012 -0600

    Rescue SMB errors

    Prevents backtraces and gives the user some idea of what happened.
    Specifically useful for STATUS_ACCESS_DENIED and STATUS_LOGON_FAILURE.

commit aba203ead75eec22606f52d7eb67f1581c44c4df
Author: Rob Fuller <jd.mubix@gmail.com>
Date:   Fri Jul 20 03:24:26 2012 -0400

    add SMB list directory module

[Closes #628]

modules/auxiliary/admin/smb/list_directory.rb

@@ -0,0 +1,101 @@
+##
+# $Id$
+##
+
+##
+# This file is part of the Metasploit Framework and may be subject to
+# redistribution and commercial restrictions. Please see the Metasploit
+# web site for more information on licensing and terms of use.
+#   http://metasploit.com/
+##
+
+
+require 'msf/core'
+
+class Metasploit3 < Msf::Auxiliary
+
+	# Exploit mixins should be called first
+	include Msf::Exploit::Remote::SMB
+	include Msf::Auxiliary::Report
+
+	# Aliases for common classes
+	SIMPLE = Rex::Proto::SMB::Client
+	XCEPT  = Rex::Proto::SMB::Exceptions
+	CONST  = Rex::Proto::SMB::Constants
+
+
+	def initialize
+		super(
+			'Name'        => 'SMB Directory Listing Utility',
+			'Version'     => '$Revision$',
+			'Description' => %Q{
+				This module lists the directory of a target share and path. The only reason
+			to use this module is if your existing SMB client is not able to support the features
+			of the Metasploit Framework that you need, like pass-the-hash authentication.
+			},
+			'Author'      =>
+				[
+					'mubix',
+					'hdm'
+				],
+			'References'  =>
+				[
+				],
+			'License'     => MSF_LICENSE
+		)
+
+		register_options([
+			OptString.new('SMBSHARE', [true, 'The name of a writeable share on the server', 'C$']),
+			OptString.new('RPATH', [false, 'The name of the remote directory relative to the share']),
+		], self.class)
+
+	end
+
+	def as_size( s )
+		prefix = %W(TB GB MB KB B)
+		s = s.to_f
+		i = prefix.length - 1
+		while s > 512 && i > 0
+			s /= 1024
+			i -= 1
+		end
+		((s > 9 || s.modulo(1) < 0.1 ? '%d' : '%.1f') % s) + ' ' + prefix[i]
+	end
+
+	def run
+		print_status("Connecting to the server...")
+		begin
+			connect()
+			smb_login()
+			print_status("Mounting the remote share \\\\#{datastore['RHOST']}\\#{datastore['SMBSHARE']}'...")
+						self.simple.connect("#{datastore['SMBSHARE']}")
+			if datastore['RPATH']
+				print_status("Listing \\\\#{datastore['RHOST']}\\#{datastore['SMBSHARE']}\\#{datastore['RPATH']}'...")
+			end
+			listing = self.simple.client.find_first("\\#{datastore['RPATH']}\\*")
+			directory = Rex::Ui::Text::Table.new(
+						'Header' => "Directory Listing of \\\\#{datastore['RHOST']}\\#{datastore['SMBSHARE']}\\#{datastore['RPATH']}",
+						'Indent' => 2,
+						'SortIndex' => 2,
+						'Columns' => ['SIZE','TYPE','TIME','FILENAME']
+			)
+			listing.each_pair do |key,val|
+				file_lastmodified = ::Time.at(Rex::Proto::SMB::Utils.time_smb_to_unix(val["info"][9],val["info"][10]))
+				size = val['info'][10]
+				if val['attr'] == 16
+					type = 'DIR'
+					size = ''
+				else
+					type = 'FILE'
+				end
+				directory << [as_size(size.to_s),val["type"],file_lastmodified.strftime("%Y-%m-%d %H:%m:%S%p"),key]
+			end
+			print_status(directory.to_s)
+		rescue Rex::Proto::SMB::Exceptions::Error => e
+			# SMB has very good explanations in error messages, don't really need to
+			# prefix with anything here.
+			print_error("#{e}")
+		end
+	end
+end
+