sunos man page for shutdown

shutdown(3SOCKET)														 shutdown(3SOCKET)

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

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

       int shutdown(int s, int how);

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

       The how values should be defined constants.

       0 is returned if the call succeeds.

       -1 is returned if the call fails.

       The call succeeds unless one of the following conditions exists:

       EBADF		       The s value is not a valid file descriptor.

       ENOMEM		       Insufficient user memory is available for the operation to complete.

       ENOSR		       Insufficient STREAMS resources are available for the operation to complete.

       ENOTCONN 	       The specified socket is not connected.

       ENOTSOCK 	       The s value is not a socket.

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

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |MT-Level		     |Safe			   |
       +-----------------------------+-----------------------------+

       connect(3SOCKET), socket(3SOCKET), socket.h(3HEAD), attributes(5)

								    31 Jan 2005 						 shutdown(3SOCKET)