socket

Specifies the file descriptor of the socket.

how

Specifies the type of shutdown. The values are as follows:

SHUT_RD

Disables further receive operations.

SHUT_WR

Disables further send operations.

SHUT_RDWR

Disables further send and receive operations.

The shutdown() function disables subsequent send and/or receive operations on a socket, depending on the value of the how argument.

Upon successful completion, shutdown() returns 0. Otherwise, -1 is returned and errno is set to indicate the error.

The shutdown() function will fail if:

EBADF

The socket argument is not a valid file descriptor.

EINVAL

The how argument is invalid.

ENOTCONN

The socket is not connected.

ENOTSOCK

The socket argument does not refer to a socket.

The shutdown() function may fail if:

ENOBUFS

Insufficient resources were available in the system to perform the operation.

ENOSR

There were insufficient STREAMS resources available for the operation to complete.

See attributes(5) for descriptions of the following attributes:

getsockopt(3XNET), recv(3XNET), recvfrom(3XNET), recvmsg(3XNET), select(3C), send(3XNET), sendto(3XNET), setsockopt(3XNET), socket(3XNET), attributes(5)