Winsock API Reference

Description

Returns a new socket that corresponds to an established connection from the listening socket queue.

Assigns a local IP address and port to an unnamed socket.

Closes (removes) a socket created by socket or returned by accept. If a socket is connected, closesocket closes the connection first.

Initiates a connection on the specified socket. For a connectionless protocol, it restricts communications to one peer instead of establishing a connection.

Frees address information dynamically allocated by getaddrinfo.

Provides protocol-independent translation from a hostname to an IP address.

Returns an ASCII string representation of the first IPv4 address configured on a system.

Provides name resolution from an address to the hostname.

Retrieves the IP address and port of the peer connected to the specified socket.

Retrieves the local IP address and port to which the specified socket is bound.

Retrieves an option associated with the specified socket.

Converts a 32-bit quantity from host byte order to network byte order.

Converts a 16-bit quantity from host byte order to network byte order.

Converts the local index for a network interface to the ANSI interface name.

Converts the ANSI interface name for a network interface to a local index for the interface.

Converts an ASCII string containing a standard dotted-decimal address to a binary IPv4 address in network byte order.

Converts a binary IPv4 address in network byte order to an ASCII string in standard dotted-decimal format.

Converts an IPv4 or IPv6 Internet network address in network byte order to an ASCII string in Internet standard text presentation.

Converts an ASCII string of IPv4 or IPv6 Internet network address in its standard text presentation form into its numeric binary form in network byte order.

Provides I/O control for sockets.

Listens for incoming connections on a specified socket.

Converts a 32-bit quantity from network byte order to host byte order.

Converts a 16-bit quantity from network byte order to host byte order.

Receives data from a connected socket.

Receives a message on a non-TCP socket.

Performs synchronous I/O multiplexing.

Sends data on a connected socket.

Transmits a message on a non-connected non-TCP socket.

Stores options associated with the specified socket.

Shuts down part or all of a full-duplex connection.

Creates an endpoint for communication and returns a socket descriptor.

Terminates the use of the TCP/IP Stack within an RTSS process.

Checks whether a socket is included in a set of socket descriptors.

Gets the status for the last Winsock operation that failed.

Converts a 32-bit quantity in host byte order to network byte order.

Converts a 16-bit quantity in host byte order to network byte order.

Performs a protocol specific I/O control action on the socket in any state.

Converts a 32-bit quantity in network byte order to host byte order.

Converts a 16-bit quantity in network byte order to host byte order.

Sets the error code that WSAGetLastError can retrieve for the current thread.

Initiates the use of TCP/IP by an RTSS process.