SHUTDOWN(3XNET) X/Open Networking Services Library Functions

NAME

shutdown - shut down socket send and receive operations

SYNOPSIS

cc [ flag ... ] file ... -lxnet [ library ... ]
#include <sys/socket.h>

int shutdown(int socket, int how);

DESCRIPTION

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

PARAMETERS

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.


socket
Specifies the file descriptor of the socket.

RETURN VALUES

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

ERRORS

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.

ATTRIBUTES

See attributes(7) for descriptions of the following attributes:


+--------------------+-----------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+--------------------+-----------------+
|Interface Stability | Standard |
+--------------------+-----------------+
|MT-Level | MT-Safe |
+--------------------+-----------------+

SEE ALSO

select(3C), getsockopt(3XNET), recv(3XNET), recvfrom(3XNET),
recvmsg(3XNET), send(3XNET), sendto(3XNET), setsockopt(3XNET),
socket(3XNET), attributes(7), standards(7)

June 10, 2002 SHUTDOWN(3XNET)