My server application creates a thread, and in this thread I listen and connect to the client. source:
//create listener socket
conn->sListen = socket( AF_INET, SOCK_STREAM, 0 );
if (conn->sListen == INVALID_SOCKET) {
out << "Error trying to create ClientListen socket: " << heinlib::GetLastErrorMessage() << "\n";
return false;
}
struct sockaddr_in service;
service.sin_family = AF_INET;
service.sin_addr.s_addr = INADDR_ANY;
service.sin_port = htons(conn->port);
if ( bind(conn->sListen, (SOCKADDR*)&service, sizeof(service) ) == SOCKET_ERROR )
{
out << "Unable to bind ClientListen socket (port " << conn->port << "): " << heinlib::GetLastErrorMessage() << "\n";
return false;
}
conn->port is fixed at 4205 ...I always wait on the same port, because I only allow 1 client connection. This has never been a problem before. I restart the server many times during testing..sometimes force-quitting it without any problems restarting it later.
This time, I get an error when trying to restart it:
Quote:
Unable to bind ClientListen socket (port 4205): Only one usage of each socket ad
dress (protocol/network address/port) is normally permitted.
But the server process has been terminated! I've been trying this over a period of time and the error won't go away. I assume it will go away if I restart, but I haven't yet, because I want to figure out why it's happening. When I look at my netstat report, looks like the port is not in use:
Quote:
C:\Windows\system32>netstat -b
Active Connections
Proto Local Address Foreign Address State
TCP 127.0.0.1:49352 Urza:49353 ESTABLISHED
[firefox.exe]
TCP 127.0.0.1:49353 Urza:49352 ESTABLISHED
[firefox.exe]
TCP 127.0.0.1:49354 Urza:49355 ESTABLISHED
[firefox.exe]
TCP 127.0.0.1:49355 Urza:49354 ESTABLISHED
[firefox.exe]
TCP 192.168.1.3:63644 verne:6667 ESTABLISHED
[mirc.exe]
TCP 192.168.1.3:64798 gy-in-f104:http ESTABLISHED
[firefox.exe]
TCP 192.168.1.3:64799 gy-in-f102:http CLOSE_WAIT
[firefox.exe]
TCP 192.168.1.3:64808 65.55.11.235:http ESTABLISHED
[firefox.exe]
TCP 192.168.1.3:64809 65.55.11.235:http ESTABLISHED
[firefox.exe]
TCP 192.168.1.3:64811 rdc-024-025-026-058:http ESTABLISHED
[firefox.exe]
TCP 192.168.1.3:64812 rdc-024-025-026-058:http ESTABLISHED
[firefox.exe]
TCP 192.168.1.3:64813 rdc-024-025-026-058:http ESTABLISHED
[firefox.exe]
TCP 192.168.1.3:64815 65.55.11.235:http ESTABLISHED
[firefox.exe]
TCP 192.168.1.3:64816 65.55.11.235:http ESTABLISHED
[firefox.exe]
TCP 192.168.1.3:64817 65.55.11.235:http ESTABLISHED
[firefox.exe]
TCP 192.168.1.3:64818 65.55.11.235:http ESTABLISHED
[firefox.exe]
TCP 192.168.1.3:64819 rdc-024-025-026-026:http ESTABLISHED
[firefox.exe]
C:\Windows\system32>netstat -n
Active Connections
Proto Local Address Foreign Address State
TCP 127.0.0.1:49352 127.0.0.1:49353 ESTABLISHED
TCP 127.0.0.1:49353 127.0.0.1:49352 ESTABLISHED
TCP 127.0.0.1:49354 127.0.0.1:49355 ESTABLISHED
TCP 127.0.0.1:49355 127.0.0.1:49354 ESTABLISHED
TCP 192.168.1.3:63644 216.155.130.130:6667 ESTABLISHED
TCP 192.168.1.3:64869 74.125.157.165:80 ESTABLISHED
TCP 192.168.1.3:64870 74.125.157.156:80 ESTABLISHED
TCP 192.168.1.3:64877 74.125.157.102:80 ESTABLISHED
TCP 192.168.1.3:64879 63.245.209.93:80 CLOSE_WAIT
TCP 192.168.1.3:64880 63.245.209.93:80 CLOSE_WAIT
TCP 192.168.1.3:64881 212.58.226.138:80 TIME_WAIT
C:\Windows\system32>
UPDATE -
using TcpView.exe I was able to detect it,
Quote:
<non-existent>:1256 TCP Urza:4205 Urza:0 LISTENING
That first part, "non-existant" means that there is no process using it...this seems to be a network stack bug. Is there any way this is my fault?
[Edited by - yahastu on June 8, 2009 1:36:49 PM]
