EventMachine::Protocols::Socks4

    # File lib/em/protocols/socks4.rb, line 20
20:       def initialize(host, port)
21:         @host = Socket.gethostbyname(host).last
22:         @port = port
23:         @socks_error_code = nil
24:         @buffer = ''
25:         setup_methods
26:       end

    # File lib/em/protocols/socks4.rb, line 30
30:           def post_init; socks_post_init; end

    # File lib/em/protocols/socks4.rb, line 31
31:           def receive_data(*a); socks_receive_data(*a); end

    # File lib/em/protocols/socks4.rb, line 35
35:       def restore_methods
36:         class << self
37:           remove_method :post_init
38:           remove_method :receive_data
39:         end
40:       end

    # File lib/em/protocols/socks4.rb, line 28
28:       def setup_methods
29:         class << self
30:           def post_init; socks_post_init; end
31:           def receive_data(*a); socks_receive_data(*a); end
32:         end
33:       end

    # File lib/em/protocols/socks4.rb, line 42
42:       def socks_post_init
43:         header = [4, 1, @port, @host, 0].flatten.pack("CCnA4C")
44:         send_data(header)
45:       end

    # File lib/em/protocols/socks4.rb, line 47
47:       def socks_receive_data(data)
48:         @buffer << data
49:         return  if @buffer.size < 8
50: 
51:         header_resp = @buffer.slice! 0, 8
52:         _, r = header_resp.unpack("cc")
53:         if r != 90
54:           @socks_error_code = r
55:           close_connection
56:           return
57:         end
58: 
59:         restore_methods
60: 
61:         post_init
62:         receive_data(@buffer)  unless @buffer.empty?
63:       end