JiLinCpApp/EC.Util/Common/NetworkUtil.cs

using System.Net.Sockets;

namespace EC.Util.Common;

public static class NetworkUtil
{
    public static string LocalAddr(this TcpClient client)
    {
        return client.Client.LocalEndPoint?.ToString() ?? ":";
    }

    public static string LocalIp(this TcpClient client)
    {
        return LocalAddr(client).Split(':')[0];
    }

    public static string LocalPort(this TcpClient client)
    {
        return LocalAddr(client).Split(':')[1];
    }

    public static string ClientAddr(this TcpClient client)
    {
        return client.Client.RemoteEndPoint?.ToString() ?? ":";
    }

    public static string ClientIp(this TcpClient client)
    {
        return ClientAddr(client).Split(':')[0];
    }

    public static string ClientPort(this TcpClient client)
    {
        return ClientAddr(client).Split(':')[1];
    }
}