Winsock API Reference

The supported Winsock API functions are listed below.

WinSock BSD API	Description
accept	Returns a new socket that corresponds to an established connection from the listening socket queue.
bind	Assigns a local IP address and port to an unnamed socket.
closesocket	Closes (removes) a socket created by function socket or returned by function accept. If a socket is connected, closesocket closes the connection first.
connect	Initiates a connection on the specified socket. For a connectionless protocol, it restricts communications to one peer, instead of establishing a connection.
freeaddrinfo	Frees address information dynamically allocated by function getaddrinfo.
getaddrinfo	Provides protocol independent translation from hostname to an IP address.
gethostbyname	Retrieves host information corresponding to a host name from a host database.
gethostname	Returns an ASCII string that can be used with gethostbyname.
getnameinfo	Provides name resolution from an address to the host name.
getpeername	Retrieves the IP address and port of the peer connected to the specified socket.
getsockname	Retrieves the local IP address and port to which the specified socket is bound.
getsockopt	Retrieves an option associated with the specified socket.
htonl	Converts a 32-bit quantity from host-byte order to network-byte order.
htons	Converts a 16-bit quantity from host-byte order to network-byte order.
inet_addr	Converts an ASCII string containing a standard dotted-decimal address to binary IPv4 address in network byte order.
inet_ntoa	Converts a binary IPv4 address in network byte order to an ASCII string in standard dotted-decimal format.
inet_ntop	Converts an IPv4 or IPv6 Internet network address in network byte order to an ASCII string in Internet standard text presentation.
inet_pton	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.
ioctlsocket	Provides I/O control for sockets.
listen	Listens for incoming connections on a specified socket.
ntohl	Converts a 32-bit quantity from network-byte order to host-byte order.
ntohs	Converts a 16-bit quantity from network byte order to host byte order.
recv	Receives data from a connected or socket.
recvfrom	Receives data from either a connected or unconnected socket, but not a TCP socket.
select	Performs synchronous I/O multiplexing.
send	Sends data on a connected socket.
sendto	Sends data on an unconnected socket, but never on a TCP socket.
setsockopt	Stores options associated with the specified socket.
shutdown	Shuts down part or all of a full-duplex connection.
socket	Creates an endpoint for communication and returns a socket descriptor.
WSACleanup	Terminates use of the RT-TCP/IP stack within an RTSS process.
WSAFDIsSet	Checks whether a socket is included in set of socket descriptors.
WSAGetlastError	Gets the status for the last Winsock operation that failed.
WSAHtonl	Converts a 32-bit quantity in host byte order to network byte order.
WSAHtons	Converts a 16-bit quantity in host byte-ordering to network byte order.
WSAIoctl	Performs a protocol-specific I/O control action on the socket in any state.
WSANtohl	WSANtohl Converts a 32-bit quantity in network byte order to host byte order.
WSANtohs	WSANtohs Converts a 16-bit quantity in network byte order to host byte order.
WSASetLastError	Sets the error code which can be retrieved by WSAGetLastError call for the current thread.
WSAStartup	Initiates the use of RT-TCP/IP by an RTSS process.