getting a binding error in server program

i thought i only needed to change this line:

Code:

---

ServerAddr.sin_addr.s_addr = INADDR_ANY;

---

Note also the listen applies only to sockets that support connections, that is, those of type SOCK_STREAM!
Datagram socket has to use recvfrom function.

so i'm missing the recvform function?

Code:

---

WSADATA wsaData;
                SOCKET ListeningSocket, NewConnection;
                SOCKADDR_IN ServerAddr;
                int Port = 7171;
                char recvbuff[1024];
                int i, nlen;

                if (WSAStartup(MAKEWORD(2,2), &wsaData) != 0)
                {
                        CString text;
                        text.Format(_T("ERROR WSAStartup failed: %d"), WSAGetLastError());
                        AfxMessageBox(text);
                        exit (1);
                }
       
                //ListeningSocket = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
                  ListeningSocket = socket(PF_INET, SOCK_DGRAM, IPPROTO_UDP);

                if (ListeningSocket == INVALID_SOCKET)
                {
                        CString text;
                        text.Format(_T("ERROR at socket, error code: %d"), WSAGetLastError());
                        AfxMessageBox(text);
                        WSACleanup();
                        exit (1);
                }
       

                ServerAddr.sin_family = AF_INET;
                ServerAddr.sin_port = htons(Port);
                ServerAddr.sin_addr.s_addr = INADDR_ANY;

                if (bind(ListeningSocket, (SOCKADDR *)&ServerAddr, sizeof(ServerAddr)) == SOCKET_ERROR)
                {
                        CString text;
                        text.Format(_T("ERROR bind failed, Error code: %d"), WSAGetLastError());
                        AfxMessageBox(text);
                        closesocket(ListeningSocket);
                        WSACleanup();
                        exit (1);
                }

                if (listen(ListeningSocket, 5) == SOCKET_ERROR)
                {
                        CString text;
                        text.Format(_T("ERROR listen: Error listening on socket: %d"), WSAGetLastError());
                        AfxMessageBox(text);
                        closesocket(ListeningSocket);
                        WSACleanup();
                        exit (1);
                }

                while(1)
                {
                        NewConnection = SOCKET_ERROR;
                        while(NewConnection == SOCKET_ERROR)
                        {
                                NewConnection = accept(ListeningSocket, NULL, NULL);
                                memset(&ServerAddr, 0, sizeof(ServerAddr));
                                nlen = sizeof(ServerAddr);

                                int ret = sendto(ListeningSocket, recvbuff, strlen(recvbuff), 0, (sockaddr*)&ServerAddr, nlen);
                            if(ret < 0)
                                {
                                        CString text;
                                        text.Format(_T("ERROR Error broadcasting to the clients: %d"), WSAGetLastError());
                                        AfxMessageBox(text);
                                }

                        }
                               
                }

                if( shutdown(NewConnection, SD_SEND) != 0)
                        printf("\n\nServer: Well, there is something wrong with the shutdown. The error code: %ld\n", WSAGetLastError());
                        CString text;
                        text.Format(_T("ERROR Something wrong with shutdown, error code: %d"), WSAGetLastError());
                        AfxMessageBox(text);
               

    SetTimer(0x01, 100, NULL);
}

---

Quote:

---

Originally Posted by beginner91

so i'm missing the recvform function?

---

Please, read the documentation about socket programming! Use MSDN and Google to find the examples!

it is difficult to look up a document for every function especially when i don't know the functions needed. do you know of any fully completed examples/source code?

Quote:

---

Originally Posted by beginner91

it is difficult to look up a document for every function especially when i don't know the functions needed.

---

Yes, it is.
But you must if, of cousre, you want to become a programmer!

Quote:

---

Originally Posted by beginner91

do you know of any fully completed examples/source code?

---

No, because I never used datagram sockets, only TCP.
But I'm sure Google knows! Just ask him! :)

http://beej.us/guide/bgnet/output/ht...age/bgnet.html