C# 你能从 System.Net.Sockets.TcpClient 中检索主机名和端口吗？
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Can you retrieve the hostname and port from a System.Net.Sockets.TcpClient?
提问by Samir Talwar
Is it possible to retrieve the underlying hostname/port from a new TcpClient?
是否可以从新的 TcpClient 检索底层主机名/端口？
TcpListener listener = new TcpListener(IPAddress.Any, port);
TcpClient client = listener.AcceptTcpClient();
// get the hostname
// get the port
I've routed around in client.Client(a System.Net.Socket), but can't find anything out in there either. Any ideas?
我在client.Client(a System.Net.Socket)中转了一圈，但在那里也找不到任何东西。有任何想法吗？
Thanks all.
谢谢大家。
采纳答案by Rasmus Faber
Untested, but I would try the following:
未经测试，但我会尝试以下操作：
TcpListener listener = new TcpListener(IPAddress.Any, port);
TcpClient client = listener.AcceptTcpClient();
IPEndPoint endPoint = (IPEndPoint) client.Client.RemoteEndPoint;
// .. or LocalEndPoint - depending on which end you want to identify
IPAddress ipAddress = endPoint.Address;
// get the hostname
IPHostEntry hostEntry = Dns.GetHostEntry(ipAddress);
string hostName = hostEntry.HostName;
// get the port
int port = endPoint.Port;
If you can make do with the IPAddress, I would skip the reverse DNS-lookup, but you specifically asked for a hostname.
如果您可以使用 IPAddress，我会跳过反向 DNS 查找，但您特别要求提供主机名。
