// Copyright 2019 github.com. All rights reserved.
// Use of this source code is governed by github.com.

package util

import (
	"errors"
	"net"
)

// LocalIP() 获取本机IP
// 返回结果：IPv6 或 IPv4
func LocalIP() (string, error) {
	addrs, err := net.InterfaceAddrs()
	if err != nil {
		return "", err
	}
	for _, addr := range addrs {
		if ipnet, ok := addr.(*net.IPNet); ok && !ipnet.IP.IsLoopback() {
			if ipnet.IP.To4() != nil {
				return ipnet.IP.String(), nil
			}
		}
	}

	return "", errors.New("get ip address failed.")
}