The IOCTL Socket function is used to send control codes to a socket. Control codes specify that a particular operation should be performed on the socket. The IOCTL Socket function provides a way to interact with the Windows Sockets API to perform various socket operations, such as setting socket options, querying socket information, and managing socket state.
Syntax
SOCKET IOCTL Socket(SOCKET hSocket, DWORD dwControlCode, ...);
Parameters
hSocket: A handle to the socket.dwControlCode: A control code that specifies the operation to be performed....: Optional parameters specific to the control code. The number and type of parameters depend on the control code being used.
Return Value
The function returns a handle to the socket if the operation is successful. If the operation fails, the function returns 0 or an invalid handle.
Control Codes
The following are some of the commonly used control codes:
IOCTL_SETSOCKOPT: Sets socket options.IOCTL_GETSOCKOPT: Retrieves socket options.IOCTL_CONNECT: Connects a socket to a remote address.IOCTL_DISCONNECT: Disconnects a socket.
A complete list of control codes and their corresponding parameters can be found in the Windows Sockets API documentation.
For more information on the Windows Sockets API, see the Windows Sockets API documentation.
You may also find helpful information in the Windows Sockets API reference.