package IpHelper

import (
	"encoding/binary"
	"net"
)

/**
ip转 long
*/
func Ip2long(ipstr string) uint64 {
	ip := net.ParseIP(ipstr)
	if ip == nil {
		return 0
	}
	ip = ip.To4()
	return binary.BigEndian.Uint64(ip)
}

/**
long转ip
*/
func Long2ip(ipLong uint64) string {
	ipByte := make([]byte, 4)
	binary.BigEndian.PutUint64(ipByte, ipLong)
	ip := net.IP(ipByte)
	return ip.String()
}