The Winsock (Windows Sockets) API provides a standardized interface for developing network applications on Windows. It allows applications to communicate over TCP/IP and UDP protocols. This section provides an overview of the Winsock API and its key functions.
| Function Name | Description | Parameters | Return Value |
|---|---|---|---|
| WSAStartup | Initializes the Winsock API. | WSADATA |
TRUE if successful, FALSE otherwise. |
| closesocket | Closes a socket. | SOCKET |
TRUE if successful, FALSE otherwise. |
| accept | Accepts a connection from a client. | SOCKADDR_IN*, int* |
TRUE if successful, FALSE otherwise. |
| bind | Binds a socket to a local address and port. | SOCKADDR_IN*, int* |
TRUE if successful, FALSE otherwise. |
| connect | Establishes a connection to a remote address. | SOCKADDR_IN*, int* |
TRUE if successful, FALSE otherwise. |
| listen | Listens for incoming connections on a socket. | int* |
TRUE if successful, FALSE otherwise. |
| recv | Receives data from a socket. | void*, int* |
The number of bytes received, or 0 on error. |
| send | Sends data from a socket. | void*, int* |
The number of bytes sent, or 0 on error. |
| shutdown | Shuts down the Winsock API. | int* |
TRUE if successful, FALSE otherwise. |