C# 中的 TraceRoute 和 Ping

有人有 C# 代码可以方便地对目标计算机执行 ping 和跟踪路由吗？我正在寻找一个纯代码解决方案，而不是我现在正在做的事情，即调用 ping.exe 和tracert.exe 程序并解析输出。我想要更坚固的东西。

鉴于我今天必须编写一个 TraceRoute 类，我想我不妨分享一下源代码。

using System.Collections.Generic;
using System.Net.NetworkInformation;
using System.Text;
using System.Net;

namespace Answer
{  
  public class TraceRoute
  {
    private const string Data = "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa";

    public static IEnumerable<IPAddress> GetTraceRoute(string hostNameOrAddress)
    {
      return GetTraceRoute(hostNameOrAddress, 1);
    }
    private static IEnumerable<IPAddress> GetTraceRoute(string hostNameOrAddress, int ttl)
    {
      Ping pinger = new Ping();
      PingOptions pingerOptions = new PingOptions(ttl, true);
      int timeout = 10000;
      byte[] buffer = Encoding.ASCII.GetBytes(Data);
      PingReply reply = default(PingReply);

      reply = pinger.Send(hostNameOrAddress, timeout, buffer, pingerOptions);

      List<IPAddress> result = new List<IPAddress>();
      if (reply.Status == IPStatus.Success)
      {
        result.Add(reply.Address);
      }
      else if (reply.Status == IPStatus.TtlExpired || reply.Status == IPStatus.TimedOut)
      {
        //add the currently returned address if an address was found with this TTL
        if (reply.Status == IPStatus.TtlExpired) result.Add(reply.Address);
        //recurse to get the next address...
        IEnumerable<IPAddress> tempResult = default(IEnumerable<IPAddress>);
        tempResult = GetTraceRoute(hostNameOrAddress, ttl + 1);
        result.AddRange(tempResult);
      }
      else
      {
        //failure 
      }

      return result;
    }
  }
}

以及 VB 版本，供任何想要/需要它的人使用

Public Class TraceRoute
    Private Const Data As String = "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"

    Public Shared Function GetTraceRoute(ByVal hostNameOrAddress As String) As IEnumerable(Of IPAddress)
        Return GetTraceRoute(hostNameOrAddress, 1)
    End Function
    Private Shared Function GetTraceRoute(ByVal hostNameOrAddress As String, ByVal ttl As Integer) As IEnumerable(Of IPAddress)
        Dim pinger As Ping = New Ping
        Dim pingerOptions As PingOptions = New PingOptions(ttl, True)
        Dim timeout As Integer = 10000
        Dim buffer() As Byte = Encoding.ASCII.GetBytes(Data)
        Dim reply As PingReply

        reply = pinger.Send(hostNameOrAddress, timeout, buffer, pingerOptions)

        Dim result As List(Of IPAddress) = New List(Of IPAddress)
        If reply.Status = IPStatus.Success Then
            result.Add(reply.Address)
        ElseIf reply.Status = IPStatus.TtlExpired Then
            'add the currently returned address
            result.Add(reply.Address)
            'recurse to get the next address...
            Dim tempResult As IEnumerable(Of IPAddress)
            tempResult = GetTraceRoute(hostNameOrAddress, ttl + 1)
            result.AddRange(tempResult)
        Else
            'failure 
        End If

        Return result
    End Function
End Class