连接两个插座时出现问题

Question

我正在使用C#对网络应用程序进行编程。我正在使用线程来收听 IPEndPoint 并回答它。

另一个用于发送按钮处理程序中使用的请求的套接字。我正在使用 TCP 协议。

我已经做了很多次，但是今天当我在很长一段时间后对其进行测试时，我发现我的应用程序无法很好地连接。

当我使用 telnet 时，我可以连接到我的套接字，或者当我创建一个测试套接字时，我可以通过我的应用程序连接它。没有奇怪的异常或错误，我通过 Mono.Nat 转发端口，但问题不在于端口，因为它可以与自身的服务器或客户端通信。

这是我的监听套接字代码：

public static async void HandleIncomingConnection()
{
await ConfigConnection();
Socket Incomingsockresponde = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
IPEndPoint LocalEndPoint = new IPEndPoint(IPAddress.Parse("0.0.0.0"), StandardPorts[0]);
string NetworkCommandString;
byte[] BytedNetworkString = new byte[1024];
byte[] BytedNetworkFile = new byte[1024 * 100000];
int Len, checker = 0, check = 0;
while(true)
{
try
{
check++;
Incomingsockresponde.Bind(LocalEndPoint);
Incomingsockresponde.Listen(1);
Incomingsockresponde = Incomingsockresponde.Accept();
MessageBox.Show("debug:n Some remote host connected:" + Incomingsockresponde.RemoteEndPoint.ToString());
MessageBox.Show("Host flagged . . .", "Yeap!");
var mainp = new mainprivate();
mainp.Hstate = "Host not flagged";
try
{
//todo:log stuff
Len = Incomingsockresponde.Receive(BytedNetworkString);
NetworkCommandString = Encoding.ASCII.GetString(BytedNetworkString, 0, Len);
RespondeCommand(NetworkCommandString, Incomingsockresponde);
Incomingsockresponde.Disconnect(true);
}
catch (Exception err)
{
checker++;
MessageBox.Show("Something went wrong with this error:n" + err.ToString(), "Woops!");
if (checker == 3)
{
MessageBox.Show("Host has some issues for connections", "Woops!");
var main2p = new mainprivate();
main2p.Hstate = "Host has some issues on connections";
return;
}   
}
}
catch(Exception err)
{
MessageBox.Show("Something went wrong with this error:n" + err.ToString(), "Woops!");
if(check == 3)
{
MessageBox.Show("Host not flagged . . .", "Woops!");
var main2p = new mainprivate();
main2p.Hstate = "Host not flagged";
return;
}
if(Incomingsockresponde.Connected == true)
Incomingsockresponde.Disconnect(true);
}
}
}
#endregion
[STAThread]
static void Main()
{
//debug:
MessageBox.Show("Here we go ports :n" + "ResPort: " + ResPort + "-- - StreamPort:" + StreamPort + "-- - EmerPort:" + EmerPort);
Thread HandleIncomingConnectionThread = new Thread(new ThreadStart(HandleIncomingConnection));
HandleIncomingConnectionThread.Start();
connections[0] = "test";
Application.EnableVisualStyles();
Application.SetCompatibleTextRenderingDefault(false);
Application.Run(new welcome());
}

这是我下面的请求代码：

try
{
Program.availsock.Connect(IPAddress.Parse(haddr[0]), Convert.ToInt16(haddr[1]));
}
catch (Exception err)
{
MessageBox.Show("Can't reach the host" + valstr);
//return;
Program.hostsn--;
addacchost(myKeys[i], valstr, new Size(944, 217), "Uavailable remote host");
goto endsock;
}
//connected
byte[] tmpmssg = new byte[1024];
tmpmssg = Encoding.ASCII.GetBytes(Program.hey);
Program.availsock.Send(tmpmssg);
int tmplng = Program.availsock.Receive(tmpmssg);
string rcdval = Encoding.ASCII.GetString(tmpmssg, 0, tmplng);
haddr = null;
Program.availsock.Close(0);
haddr = rcdval.Split('%');
if (!Program.supporteddistros.Contains(haddr[0]) || !Program.supportedversions.Contains(haddr[1]) || !Program.supportedtypes.Contains(haddr[2]))
{
MessageBox.Show("Unsupported remote host" + valstr);
//delete that from there 
Program.oridndic.RemoveAt(checker - 1);
Program.hostsn--;
addacchost(myKeys[i], valstr, new Size(944, 217), "Unsupported remote host");
//acchost.Loadlbl = "Unsupported/Deleted";
//hosts2.Controls.Add(acchost);
//return;
goto endsock;
}

我通过netstat -ab检查端口，它正在侦听，但它只是通过 telnet 接收连接，或者我的测试套接字没有请求我的代码端或反向我的请求端只是向我的测试套接字发送请求。

这是关于我的代码结构吗？

我是不是搞错了？

编辑：我还为所有端口和Windows防火墙的其他内容定义了入站规则。

我很困惑，我从来没有遇到过这种情况，我只是在寻找线索。

Answer 1

好吧，这只是我所做的端口的错误转换：

IPEndPoint ep = new IPEndPoint(IPAddress.Parse("0.0.0.0"), Convert.toInt16( port int here));

它应该是：

IPEndPoint ep = new IPEndPoint(IPAddress.Parse("0.0.0.0"), int.Parse(Port int here));

谢谢人们不帮忙：/