# File lib/dnsruby/resource/APL.rb, line 69
        def create_from_message(msg)
          prefixes = []
          while(msg.has_remaining?) do
            negative = nil
            af,prefix_length,flag = msg.get_unpack('nCC')
            negative = '!' if 0x80 & flag == 0x80
            address_length = flag & 0x7f

            case(af)
            when 1
              addr = msg.get_bytes(address_length) + "\0" * (4 - address_length)
              address = IPv4.new(addr)
            when 2
              addr = msg.get_bytes(address_length) + "\0" * (16 - address_length)
              address = IPv6.new(addr)
            else
              raise ArgumentError.new("APL format error")
            end
            prefixes.push(Prefix.new(af, prefix_length, negative, address_length, address))
          end

          Prefixes.new(prefixes)
        end