4.3BSD - /usr/man/cat2/shutdown.0

SHUTDOWN(2)                                                        SHUTDOWN(2)


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

SYNOPSIS
       shutdown(s, how)
       int s, how;

DESCRIPTION
       The shutdown call causes all or part of a full-duplex connection on the
       socket associated with s to be shut down.  If how is  0,  then  further
       receives  will  be disallowed.  If how is 1, then further sends will be
       disallowed.  If how is 2, then further sends and receives will be  dis‐
       allowed.

DIAGNOSTICS
       A 0 is returned if the call succeeds, -1 if it fails.

ERRORS
       The call succeeds unless:

       [EBADF]        S is not a valid descriptor.

       [ENOTSOCK]     S is a file, not a socket.

       [ENOTCONN]     The specified socket is not connected.

SEE ALSO
       connect(2), socket(2)


4.2 Berkeley Distribution        May 15, 1985                      SHUTDOWN(2)