#!/usr/bin/env ruby1.8

require 'socket'

GPS_SERVER_IP = "192.168.2.1"
GPS_SERVER_PORT = 5445
MODE = :client
PROTOCOL = :tcp

def tcp_read(sock)
  loop {
    data = sock.readline()
    puts data.inspect
  }
end

if PROTOCOL == :tcp
  if MODE == :client
    sock = TCPSocket.new(GPS_SERVER_IP, GPS_SERVER_PORT)
    tcp_read(sock)
    sock.close
  else
    serv = TCPServer.new(GPS_SERVER_PORT)
    sock = serv.accept
    tcp_read(sock)
    sock.close
  end
elsif PROTOCOL == :udp
  sock = UDPSocket.new
  sock.bind('0.0.0.0', GPS_SERVER_PORT)

  loop {
    begin
      msg, sender = sock.recvfrom(1024)
    rescue Errno::EAGAIN, Errno::EWOULDBLOCK => e
      puts "recvfrom error: #{e.class}: #{e}"
      next
    end
    puts msg.inspect
  }
end