Winsok2 problem

[Nandor]

I have a problem using winsock 2:
1>c:\documents and settings\nandor\my documents\warknight\warknight server\warknight server\warknight server.cpp(14) : error C2065: 'WSADATA' : undeclared identifier

and lots more like this...where can i get the coresponding header files?

[firedraco]

MSDN or Microsoft...you will also have to go to your compiler and tell it to include the winsock lib file...Idr it's name exactly, but you could probably do a search and find it.

[Nandor]

I use VS 2005,i wrote this to the project configuration:
Linker->Input->Aditional dependencies->Ws_32.lib Mswsock.lib Advapi32.lib

[Nandor]

I managed to get the code working,but how can I test it?If a connect 2 computers in LAN and on one is the server and on the other is the client,will it work?

[firedraco]

Well, you could just make 2 .exes, one that hosts (run it first), then run the client (and have it connect to yourself). You can connect to yourself either using localhost or 172.0.0.1 (I think)

[Nandor]

127.0.0.1

[Nandor]

Will those program work for only one client or one client needs one server?

[firedraco]

Yeah, you will either need to use some type of threading system in order to have one server handle multiple connections.

Boost::thread is a good one to check out:
http://www.boost.org/doc/libs/1_36_0/doc/html/thread.html

[Nandor]

but...can this be achieved with winsock2?

[firedraco]

I know that windows also has some functions for using threads, but those are Windows specific. CreateThread() and stuff IIRC...MSDN is your friend.

[Nandor]

are there any tutorials?

[firedraco]

Google for Winsock tutorials.

[Nandor]

I tried...but i haven't got any for multiple conections...I'm now trying to make 256 ConnectSockets.

Here I try to get messages from several clients,but it's not working.
I have problems with connecting the new client,or maybe anything is wrong
My code:

int __cdecl main(void) 
{
	int con=0;
	time_t timebeg=time(NULL);
    WSADATA wsaData;
    SOCKET ListenSocket = INVALID_SOCKET,
           ClientSocket[256],
		   TMPS = INVALID_SOCKET;
    struct addrinfo *result = NULL,
                    hints;
    int iResult, iSendResult;
    int recvbuflen = DEFAULT_BUFLEN;
    // Initialize Winsock
    iResult = WSAStartup(MAKEWORD(2,2), &wsaData);
    if (iResult != 0) {
        printf("WSAStartup failed: %d\n", iResult);
        return 1;
    }


    ZeroMemory(&hints, sizeof(hints));
    hints.ai_family = AF_INET;
    hints.ai_socktype = SOCK_STREAM;
    hints.ai_protocol = IPPROTO_TCP;
    hints.ai_flags = AI_PASSIVE;

    // Resolve the server address and port
    iResult = getaddrinfo(NULL, DEFAULT_PORT, &hints, &result);
    if ( iResult != 0 ) {
        printf("getaddrinfo failed: %d\n", iResult);
        WSACleanup();
        return 1;
    }

    // Create a SOCKET for connecting to server
    ListenSocket = socket(result->ai_family, result->ai_socktype, result->ai_protocol);
    if (ListenSocket == INVALID_SOCKET) {
        printf("socket failed: %ld\n", WSAGetLastError());
        freeaddrinfo(result);
        WSACleanup();
        return 1;
    }

    // Setup the TCP listening socket
    iResult = bind( ListenSocket, result->ai_addr, (int)result->ai_addrlen);
    if (iResult == SOCKET_ERROR) {
        printf("bind failed: %d\n", WSAGetLastError());
        freeaddrinfo(result);
        WSACleanup();
        return 1;
    }

    freeaddrinfo(result);

    iResult = listen(ListenSocket, SOMAXCONN);
    if (iResult == SOCKET_ERROR) {
        printf("listen failed: %d\n", WSAGetLastError());
        WSACleanup();
        return 1;
    }

    // Accept a client socket
    ClientSocket[0] = accept(ListenSocket, NULL, NULL);
    if (ClientSocket[0] == INVALID_SOCKET) {
        printf("accept failed: %d\n", WSAGetLastError());
        closesocket(ListenSocket);
        WSACleanup();
        return 1;
    }
	int aux;
	TMPS=ListenSocket;
	 time_t seconds,seconds2;
	 struct tm * timeinfo;

		closesocket(ListenSocket);
		do {

			listen(ListenSocket, 1);
			if(ListenSocket!=TMPS)
			{
				con++;
				ClientSocket[con] = accept(ListenSocket, NULL, NULL);
                                                                //here I try to connect the new client to the server...But it's not working
			}
			for(int a=0;a<con+1;a++)
			{
				iResult = recv(ClientSocket[a], recvbuf, 64, 0);

				if (iResult > 0) {			
					time (&seconds);
					timeinfo = localtime ( &seconds );
					printf("Received content at %scontent: %s ",asctime (timeinfo),recvbuf);
					response();
					iSendResult = send( ClientSocket[a], recvbuf, iResult, 0 );
					if (iSendResult == SOCKET_ERROR) {
						printf("send failed: %d\n", WSAGetLastError());
						closesocket(ClientSocket[a]);
						WSACleanup();
						return 1;
					}
					seconds2 = time (NULL);
					printf("Response: %s in %u s\n", recvbuf,seconds2-seconds);
				}
				else if (iResult == 0)
					printf("Connection closing...\n");
				else  {
					printf("recv failed: %d\n", WSAGetLastError());
					closesocket(ClientSocket[a]);
					WSACleanup();
					return 1;
				}
			}

		} while (iResult > 0);
	for(int a=0;a<156;a++)
	{
    // shutdown the connection since we're done
    iResult = shutdown(ClientSocket[a], SD_SEND);
    if (iResult == SOCKET_ERROR) {
        printf("shutdown failed: %d\n", WSAGetLastError());
        closesocket(ClientSocket[a]);
        WSACleanup();
        return 1;
    }

    // cleanup
	
    closesocket(ClientSocket[a]);
	}
    WSACleanup();
	int a;std::cin>>a;
    return 0;
}

Can someone help?