package main

import (
	"flag"
	"fmt"
	"log"
	"net"
	"os"

	"gitee.com/sillyman/simpleUtil/network/arpresolve"
)

var (
	localIP  = flag.String("lip", "", "IP address of local interface")
	remoteIP = flag.String("rip", "", "IP address of host in LAN")
)

func main() {
	flag.Parse()
	if *localIP == "" || *remoteIP == "" {
		flag.PrintDefaults()
		os.Exit(1)
	}

	remoteMAC, err := arpresolve.Resolve(net.ParseIP(*localIP), net.ParseIP(*remoteIP), 3)
	if err != nil {
		log.Fatalln(err)
	}
	fmt.Printf("%s => %s\n", *remoteIP, remoteMAC)
}