/*
 *  libsocket - BSD socket like library for DJGPP
 *  Copyright 1997, 1998 by Indrek Mandre
 *  Copyright 1997-2000 by Richard Dawe
 *
 *  Portions of libsocket Copyright 1985-1993 Regents of the University of 
 *  California.
 *  Portions of libsocket Copyright 1991, 1992 Free Software Foundation, Inc.
 *  Portions of libsocket Copyright 1997, 1998 by the Regdos Group.
 *
 *  This library is free software; you can redistribute it and/or modify it
 *  under the terms of the GNU Library General Public License as published
 *  by the Free Software Foundation; either version 2 of the License, or (at
 *  your option) any later version.
 *
 *  This library is distributed in the hope that it will be useful, but
 *  WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 *  Library General Public License for more details.
 * 
 *  You should have received a copy of the GNU Library General Public
 *  License along with this library; if not, write to the Free Software
 *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#include <dpmi.h>
#include <sys/farptr.h>
#include <sys/segments.h>

#include <sys/socket.h>

#include <lsck/if.h>
#include "wsock.h"
#include "farptrx.h"
#include "wsockvxd.h"

/* -----------------------
 * - __wsock_getpeername -
 * ----------------------- */

int __wsock_getpeername (LSCK_SOCKET * lsd,
                         struct sockaddr *name, size_t *namelen)
{
	LSCK_SOCKET_WSOCK *wsock = (LSCK_SOCKET_WSOCK *) lsd->idata;
	WSOCK_GETPEERNAME_PARAMS params;

	/* RD: Check the buffer is large enough to perform the operation */
	if ((*namelen + (3 * 4)) > _SocketP.size) {
		errno = ENOBUFS;
		return (-1);
	}
	
	bzero (&params, sizeof (params));

	params.Address = (void *) ((SocketP << 16) + (3 * 4));
	params.Socket = (void *) wsock->_Socket;
	params.AddressLength = *namelen;

	_farpokex (SocketP, 0, &params, sizeof (WSOCK_GETPEERNAME_PARAMS));
	_farpokex (SocketP, 3 * 4, name, *namelen);

	__wsock_callvxd (WSOCK_GETPEERNAME_CMD);

	if (_VXDError && _VXDError != 0xffff) return -1;

	_farpeekx (SocketP, 0, &params, sizeof (WSOCK_GETPEERNAME_PARAMS));
	*namelen = params.AddressLength;
	_farpeekx (SocketP, 3 * 4, name, *namelen);

	return 0;
}