/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License, Version 1.0 only
 * (the "License").  You may not use this file except in compliance
 * with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */
/*
 * Copyright 1997 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

/*      Copyright (c) 1988 AT&T */
/*        All Rights Reserved   */

/*
 * University Copyright- Copyright (c) 1982, 1986, 1988
 * The Regents of the University of California
 * All Rights Reserved
 *
 * University Acknowledgment- Portions of this document are derived from
 * software developed by the University of California, Berkeley, and its
 * contributors.
 */

/*LINTLIBRARY*/

#include        <sys/types.h>
#include        "curses_inc.h"

#define         SEPARATE_READ   6

/* Read a window that was stored by putwin. */

WINDOW  *
getwin(FILE *filep)
{
        short           *save_fch, win_nums[SEPARATE_READ], maxy, maxx, nelt;
        WINDOW          *win = NULL;
        chtype          **ecp, **wcp;

        /* read everything from _cury to _bkgd inclusive */

        nelt = sizeof (WINDOW) - sizeof (win->_y) - sizeof (win->_parent) -
            sizeof (win->_parx) - sizeof (win->_pary) -
            sizeof (win->_ndescs) - sizeof (win->_delay) -
            (SEPARATE_READ * sizeof (short));

        if ((fread((char *) win_nums, sizeof (short), SEPARATE_READ, filep) !=
            SEPARATE_READ) || ((win = _makenew(maxy = win_nums[2], maxx =
            win_nums[3], win_nums[4], win_nums[5])) == NULL)) {
                goto err;
        }

        if (_image(win) == ERR) {
                win = (WINDOW *) NULL;
                goto err;
        }
        save_fch = win->_firstch;

        if (fread(&(win->_flags), 1, nelt, filep) != nelt)
                goto err;

        win->_firstch = save_fch;
        win->_lastch = save_fch + maxy;

        /* read the image */
        wcp = win->_y;
        ecp = wcp + maxy;

        while (wcp < ecp)
                if (fread((char *) *wcp++, sizeof (chtype), maxx, filep) !=
                    maxx) {
err :
                        if (win != NULL)
                                (void) delwin(win);
                        return ((WINDOW *) NULL);
        }

        win->_cury = win_nums[0];
        win->_curx = win_nums[1];
        win->_use_idl = win->_use_keypad = FALSE;

        return (win);
}