DESCRIPTION

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

RETURN VALUE

     On success, zero is returned.  On error, -1 is returned, and
     errno is set appropriately.

ERRORS

     EBADF   s is not a valid descriptor.

     ENOTSOCK
             s is a file, not a socket.

     ENOTCONN
             The specified socket is not connected.

CONFORMING TO

     4.4BSD  (the  shutdown  function  call  first  appeared   in
     4.2BSD).

SEE ALSO

     connect(2), socket(2)