socket UDP问题 [英] socket UDP issue

问题描述

你好
我正在听udp并在修改数据之后。我想知道我从哪个IP地址获取数据。和m_SocketAddress给我这个，但这是非公开成员

public static void ReceiveCallback（IAsyncResult iar ）
{
在这里我想知道哪个服务器向我发送了消息



























AsyncState;
IPEndPoint sender = new IPEndPoint（IPAddress.Any，1234）;
EndPoint rep =（EndPoint）sender;
int read = remort.EndReceiveFrom（iar，ref rep）;
if（读> 0）
{
_Objsock1234.BeginReceive From（data，0，data.Length，0，ref rep，
new AsyncCallback（ReceiveCallback），_ Objsock1234）;
}

Hello 
         I am listen a udp and after revicing the data. I want to know from which ip address I have recive data. and m_SocketAddress give me this but this is non public member

public static void ReceiveCallback(IAsyncResult iar)
        {
Here I want to know which server has  send me the message
            try
            {
                lock (_lock)
                {
                   
                    Socket remort = (Socket)iar.AsyncState;
                    IPEndPoint sender = new IPEndPoint(IPAddress.Any , 1234);
                    EndPoint rep = (EndPoint)sender;
                    int read = remort.EndReceiveFrom(iar, ref rep);
                    if (read > 0)
                    {
                                              _Objsock1234.BeginReceiveFrom(data, 0, data.Length, 0, ref rep,
                                         new AsyncCallback(ReceiveCallback), _Objsock1234);
                    }

}


catch（Exception ex）
{
throw ex;
}

                }
            }
            catch (Exception ex)
            {
                throw ex;
            }

推荐答案

这是调用EndReceiveFrom后存储在rep中的内容。 :-)至少我是这样理解的。

That's what is stored in rep after calling EndReceiveFrom. :-)  At least that's how I understand it.

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