package main

import (
    "log"
    "net"
    "hash/crc32"
    "encoding/binary"
)

func main() {
    hostName: = "localhost"
    portNum: = "13338"

        service: = hostName + ":" + portNum

        RemoteAddr,
    err: = net.ResolveUDPAddr("udp", service)

        conn,
    err: = net.DialUDP("udp", nil, RemoteAddr)

    if err != nil {
        log.Fatal(err)
    }

    log.Printf("Established connection to %s \n", service)
    log.Printf("Remote UDP address : %s \n", conn.RemoteAddr().String())
    log.Printf("Local UDP client address : %s \n", conn.LocalAddr().String())

    defer conn.Close()

    //message := []byte(string(1))
    //message = append(message, "goflow.test"...)
    message: = [] byte("goflow.test")
    message = append(message, ([] byte(string(0)))...)
    message = append(message, "('127.0.0.1','127.0.0.2')"...)

    buf: = make([] byte, 4)
    v: = crc32.Update(0, crc32.IEEETable, message)
    binary.LittleEndian.PutUint32(buf, v)

    message = append(message, buf...)

    _,
    err = conn.Write(message)

    if err != nil {
        log.Println(err)
    }

}