shutdown(SSC)

shutdown -- shut down part of a full-duplex connection

Synopsis

cc [options] file -lsocket -lnsl

#include <sys/socket.h>

int shutdown(int socket, int how);

Description

The shutdown call shuts down all or part of a full-duplex connection on the socket associated with socket. If how is SHUT_RD, then further receives will be disallowed. If how is SHUT_WR, then further sends will be disallowed. If how is SHUT_RDWR, then further sends and receives will be disallowed.

Files

/usr/lib/locale/locale/LC_MESSAGES/uxnsl

Return values

A 0 is returned if the call succeeds. Otherwise, -1 is returned and errno is set to indicate the error.

Errors

The call fails if how is invalid or if:

EBADF: socket is not a valid descriptor.
EINVAL: The value of how is invalid.
ENOBUFS: System resources were insufficient to perform the operation.
ENOMEM: There was insufficient user memory available for the operation to complete.
ENOSR: There were insufficient STREAMS resources available for the operation to complete.
ENOTCONN: The specified socket is not connected.
ENOTSOCK: socket is a file, not a socket.

References

connect(SSC), socket(SSC)

Notices

The how values should be defined constants.