shutdown - shut down part of a full-duplex connection

The call causes all or part of a full-duplex connection on the socket associated with to be shut down. If is 0, further receives will be disallowed. If is 1, further sends will be disallowed. If is 2, further sends and receives will be disallowed. On success, zero is returned. On error, -1 is returned, and is set appropriately. is not a valid descriptor. is a file, not a socket. The specified socket is not connected.

HISTORY
The function call appeared in BSD 4.2.