usr/src/lib/libcurses/screen/putwin.c

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License, Version 1.0 only
   6  * (the "License").  You may not use this file except in compliance
   7  * with the License.
   8  *
   9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
  10  * or http://www.opensolaris.org/os/licensing.
  11  * See the License for the specific language governing permissions
  12  * and limitations under the License.
  13  *
  14  * When distributing Covered Code, include this CDDL HEADER in each
  15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  16  * If applicable, add the following below this CDDL HEADER, with the
  17  * fields enclosed by brackets "[]" replaced with your own identifying
  18  * information: Portions Copyright [yyyy] [name of copyright owner]
  19  *
  20  * CDDL HEADER END
  21  */
  22 /*
  23  * Copyright 1997 Sun Microsystems, Inc.  All rights reserved.
  24  * Use is subject to license terms.
  25  */
  26
  27 /*      Copyright (c) 1988 AT&T */
  28 /*        All Rights Reserved   */
  29
  30 /*
  31  * University Copyright- Copyright (c) 1982, 1986, 1988
  32  * The Regents of the University of California
  33  * All Rights Reserved
  34  *
  35  * University Acknowledgment- Portions of this document are derived from
  36  * software developed by the University of California, Berkeley, and its
  37  * contributors.
  38  */
  39
  40 #pragma ident   "%Z%%M% %I%     %E% SMI"
  41
  42 /*LINTLIBRARY*/
  43
  44 #include        <sys/types.h>
  45 #include        "curses_inc.h"
  46
  47 /*
  48  * Write a window to a file.
  49  *
  50  * win: the window to write out.
  51  * filep:       the file to write to.
  52  */
  53
  54 int
  55 putwin(WINDOW *win, FILE *filep)
  56 {
  57         int     maxx, nelt;
  58         chtype  **wcp, **ecp;
  59
  60         /* write everything from _cury to _bkgd inclusive */
  61         nelt = sizeof (WINDOW) - sizeof (win->_y) - sizeof (win->_parent) -
  62             sizeof (win->_parx) - sizeof (win->_pary) -
  63             sizeof (win->_ndescs) - sizeof (win->_delay);
  64
  65         if (fwrite((char *) &(win->_cury), 1, nelt, filep) != nelt)
  66                 goto err;
  67
  68         /* Write the character image */
  69         maxx = win->_maxx;
  70         ecp = (wcp = win->_y) + win->_maxy;
  71         while (wcp < ecp)
  72                 if (fwrite((char *) *wcp++, sizeof (chtype),
  73                     maxx, filep) != maxx)
  74 err:
  75                         return (ERR);
  76
  77         return (OK);
  78 }