crrc/internal/app/stc/socket/index.go

package socket

import (
	"fmt"
	"net"
)

var Conn net.Conn
var Conn8 net.Conn

var ConnToMaster net.Conn

const RemotePort = 10100
const LocalPort = 10201
const LocalPort8 = 10202

//const RemoteAddr8 = "192.168.17.14"

const RemoteAddr = "10.0.11.11"

const RemoteAddr8 = "10.0.11.81"

var ConnectedMaster bool

func IsIPExists(targetIP string) (bool, error) {
	// 解析目标 IP
	ip := net.ParseIP(targetIP)
	if ip == nil {
		return false, fmt.Errorf("invalid IP address: %s", targetIP)
	}

	// 获取所有网络接口的地址
	addrs, err := net.InterfaceAddrs()
	if err != nil {
		return false, err
	}

	// 遍历每个接口地址
	for _, addr := range addrs {
		// 只处理 IP 网络类型地址 (*net.IPNet)
		if ipnet, ok := addr.(*net.IPNet); ok {
			// 检查该网段是否包含目标 IP
			if ipnet.Contains(ip) {
				return true, nil
			}
		}
	}

	return false, nil
}