Adding a convenience method for generating random hexadecimal characters.

git-svn-id: file:///home/svn/framework3/trunk@8233 4d416f70-5f16-0410-b530-b9f4589650da

lib/rex/text.rb

@@ -654,6 +654,14 @@ module Text
 		rand_base(len, bad, *foo )
 	end
 
+	# Generate random bytes of alphanumeric hex.
+	def self.rand_text_hex(len, bad='')
+		foo = []
+		foo += ('0' .. '9').to_a
+		foo += ('a' .. 'f').to_a
+		rand_base(len, bad, *foo)
+	end
+
 	# Generate random bytes of numeric data
 	def self.rand_text_numeric(len, bad='')
 		foo = ('0' .. '9').to_a

lib/rex/text.rb.ut.rb

@@ -42,6 +42,7 @@ class Rex::Text::UnitTest < Test::Unit::TestCase
 		assert_equal('bababbabba', Rex::Text.rand_text(10, nil, 'ab'), 'rand text with specified "good"')
 		assert_equal('MA', Rex::Text.rand_state(), 'rand state')
 		assert_equal('xzdttongb.5gfk0xjly3.aak.fmo0rp.com', Rex::Text.rand_hostname(), 'rand hostname')
+		assert_equal('9aaf811799', Rex::Text.rand_text_hex(10), 'rand hex')
 	end