usr/src/lib/libcurses/screen/scr_ll_dump.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        "curses_inc.h"
  45 #include        <sys/types.h>
  46 #include        <sys/stat.h>
  47 #include        <unistd.h>
  48
  49 int
  50 scr_ll_dump(FILE *filep)
  51 {
  52         short   magic = SVR3_DUMP_MAGIC_NUMBER, rv = ERR;
  53         char    *thistty;
  54         SLK_MAP *slk = SP->slk;
  55         struct  stat    statbuf;
  56
  57         if (fwrite((char *) &magic, sizeof (short), 1, filep) != 1)
  58                 goto err;
  59
  60         /* write term name and modification time */
  61         if ((thistty = ttyname(cur_term->Filedes)) == NULL)
  62                 statbuf.st_mtime = 0;
  63         else
  64                 (void) stat(thistty, &statbuf);
  65
  66         if (fwrite((char *) &(statbuf.st_mtime), sizeof (time_t),
  67             1, filep) != 1)
  68                 goto err;
  69
  70         /* write curscr */
  71         if (_INPUTPENDING)
  72                 (void) force_doupdate();
  73         if (putwin(curscr, filep) == ERR)
  74                 goto err;
  75
  76         /* next output: 0 no slk, 1 hardware slk, 2 simulated slk */
  77
  78         magic = (!slk) ? 0 : (slk->_win) ? 2 : 1;
  79         if (fwrite((char *) &magic, sizeof (int), 1, filep) != 1)
  80                 goto err;
  81         if (magic) {
  82                 short   i, labmax = slk->_num, lablen = slk->_len + 1;
  83
  84                 /* output the soft labels themselves */
  85                 if ((fwrite((char *) &labmax,
  86                     sizeof (short), 1, filep) != 1) ||
  87                     (fwrite((char *) &lablen, sizeof (short),
  88                     1, filep) != 1)) {
  89                         goto err;
  90                 }
  91                 for (i = 0; i < labmax; i++)
  92                         if ((fwrite(slk->_ldis[i], sizeof (char), lablen,
  93                             filep) != lablen) || (fwrite(slk->_lval[i],
  94                             sizeof (char), lablen, filep) != lablen)) {
  95                                 goto err;
  96                         }
  97         }
  98
  99         /* now write information about colors.  Use the following format. */
 100         /* Line 1 is mandatory, the remaining lines are required only if  */
 101         /* line one is 1.                                                 */
 102         /* line 1: 0 (no colors) or 1 (colors)                            */
 103         /* line 2: number of colors, number of color pairs, can_change    */
 104         /* X lines: Contents of colors (r, g, b)                          */
 105         /* Y lines: Contents of color-pairs                               */
 106
 107         magic = ((cur_term->_pairs_tbl) ? 1 : 0);
 108         if (fwrite((char *) &magic, sizeof (int), 1, filep) != 1)
 109                 goto err;
 110         if (magic) {
 111                 /* number of colors and color_pairs     */
 112                 if ((fwrite((char *) &COLORS, sizeof (int), 1, filep) != 1) ||
 113                     (fwrite((char *) &COLOR_PAIRS, sizeof (int), 1, filep) !=
 114                     1) || (fwrite((char *) &can_change, sizeof (char), 1,
 115                     filep) != 1))
 116                         goto err;
 117
 118                 /* contents of color_table              */
 119
 120                 if (can_change) {
 121                         if (fwrite((char *) &(cur_term->_color_tbl->r),
 122                             sizeof (_Color), COLORS, filep) != COLORS)
 123                                 goto err;
 124                 }
 125
 126                 /* contents of pairs_table              */
 127
 128                 if (fwrite((char *) &(cur_term->_pairs_tbl->foreground),
 129                     sizeof (_Color_pair), COLOR_PAIRS, filep) != COLOR_PAIRS)
 130                         goto err;
 131         }
 132
 133         /* success */
 134         rv = OK;
 135 err :
 136         return (rv);
 137 }