Thread: Help with ioctlsocket

I get error 10022 Invalid argument after calling ioctlsocket, any ideas why? Here is the code.

Code:

unsigned long ulMode = 1;
WSADATA wsaSock;
SOCKET mySocket;

  WSAStartup(MAKEWORD(2,1),&wsaSock);
  

  mySocket = socket(AF_INET,SOCK_RAW,IPPROTO_IP);
  

  bind(mySocket,(SOCKADDR *) &myAddr,sizeof(myAddr));
  

  if (ioctlsocket(mySocket, SIO_RCVALL, &ulMode) == SOCKET_ERROR) {
      cout << "SOCKET ERROR\n";
      erCode = WSAGetLastError();
      cout << "Error: " << erCode << "\n";
  }

Thanks in advance

I just read through the documention for the ioctlsocket() function, and it doesn't say anywhere that SIO_RCVALL is a valid parameter to pass.

Originally Posted by bithub

I just read through the documention for the ioctlsocket() function, and it doesn't say anywhere that SIO_RCVALL is a valid parameter to pass.

If your refering to MSDN, a little further down in the documentation it states that those 3 parameters are vaild for winsock V 1.1 but many more are supported in 2.0, which can be found in the documentation for WSAIoctl