Connecting to nethack.eu via ruby and socket

gistfile1.rb

    require 'socket'
    $TELNET_BUFFER = 4096
     
    class Connection
        attr_reader :neusock
        def self.init
            @neusock = TCPSocket.new("nethack.eu", 23)
            handshake = [0xff, 0xfb, 0x18, 0xff, 0xfa, 0x18, 0x00, 'x', 't', 'e', 'r', 'm', 0xff, 0xf0, 0xff, 0xfc, 0x20, 0xff, 0xfc, 0x23, 0xff, 0xfc, 0x27, 0xff, 0xfe, 0x03, 0xff, 0xfb, 0x01, 0xff, 0xfd, 0x05, 0xff, 0xfb, 0x21, 0xff, 0xfb, 0x1f, 0xff, 0xfa, 0x1f, 0x00, 0x50, 0x00, 0x18, 0xff, 0xf0]
            #from https://github.com/canidae/saiph/blob/master/src/Telnet.cpp
            handshake = handshake.map{|c| c.class == Fixnum ? c.chr : c}.join
            @neusock.print handshake
            @neusock.recv $TELNET_BUFFER #discard that shit!
            @neusock.print "l"
            return @neusock.recv $TELNET_BUFFER
        end
    end
     
    puts Connection.init #gibt mir den login-screen von nethack.eu zurueck