IPMsg.rb

gistfile1.txt

#!/bin/env ruby
# -*- coding: utf-8 -*-

require 'socket'

class IPMsg
  IPMSG_VERSION = 0x0001
  IPMSG_SENDMSG_CODE = 0x00000020
  IPMSG_PORT = 2425

  def initialize(user,host)
    @user = user
    @host = host
    @sock = UDPSocket.new 
    #Socket.new(Socket::AF_INET, Socket::SOCK_DGRAM, 0) でも可
  end

  def send(target, message)
    sockaddr = Socket.sockaddr_in(IPMSG_PORT , target)
    sendtext = makemsg(message)

    # メッセージ送信
    @sock.send(sendtext, 0, sockaddr)
  end 

  private
  def makemsg(message)
    # IPMSGプロトコルでの送信メッセージを作成
    return "1:%d:%s:%s:%d:%s" % [
            rand(1000),
            @user,
            @host,
            IPMSG_SENDMSG_CODE,
            message]
  end
end

# ----------------------------------------

# IPMSGでメッセージを送るユーザ名
user = 'hogehoge'
# IPMSGでメッセージを送るPCのPC名
local_host = 'fugafuga'

# メッセージの送り先IPアドレス
msg_to = 'localhost'
# メッセージ
msg = 'I love Ruby prgramming.'

ipmsg = IPMsg.new(user, local_host)
ipmsg.send(msg_to, msg)

# ------------------------------------------