Iteratively brutes dns hostnames

brutedns.rb

#!/usr/bin/env ruby

#
## Brute code stolen form: https://gist.github.com/petehamilton/4755855
#

@domain = 'contoso.com'

def result?(sub)
	results = %x(dig +noall #{sub}.#{@domain} +answer)
	if results != ""
		puts "============================"
		puts "FOUND: \t#{sub}"
		puts "============================"
		puts "#{results}"
		puts "============================"
	end
	1 == 2
end

def crack_yielding(chars)
	crack_yield(chars){ |p|
		return p if result?(p)
	}
end


def crack_yield(chars)
	chars.each { |c| yield c }

	crack_yield(chars) { |c|
		chars.each do |x|
			yield c + x
		end
	}
end

chars = ('a'..'z').to_a
(0..9).each {|x| chars << x.to_s} 

crack_yielding(chars)