48 lines
1.3 KiB
C#
48 lines
1.3 KiB
C#
using DNS.Protocol;
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using System;
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using System.Net;
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using System.Net.Sockets;
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namespace FastGithub.Dns
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{
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/// <summary>
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/// 带远程终节点的请求
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/// </summary>
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sealed class RemoteEndPointRequest : Request
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{
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/// <summary>
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/// 获取程终节点
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/// </summary>
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public EndPoint RemoteEndPoint { get; }
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/// <summary>
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/// 远程请求
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/// </summary>
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/// <param name="request"></param>
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/// <param name="remoteEndPoint"></param>
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public RemoteEndPointRequest(Request request, EndPoint remoteEndPoint)
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: base(request)
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{
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this.RemoteEndPoint = remoteEndPoint;
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}
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/// <summary>
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/// 获取对应的本机地址
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/// </summary>
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/// <returns></returns>
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public IPAddress? GetLocalAddress()
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{
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try
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{
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using var socket = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);
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socket.Connect(this.RemoteEndPoint);
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return socket.LocalEndPoint is IPEndPoint localEndPoint ? localEndPoint.Address : default;
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}
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catch (Exception)
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{
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return default;
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}
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}
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}
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}
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