1 /* $NetBSD: initscr.c,v 1.29 2007/01/22 21:14:53 jdc Exp $ */
2
3 /*
4 * Copyright (c) 1981, 1993, 1994
5 * The Regents of the University of California. All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. Neither the name of the University nor the names of its contributors
16 * may be used to endorse or promote products derived from this software
17 * without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 */
31
32 #include <sys/cdefs.h>
33 #ifndef lint
34 #if 0
35 static char sccsid[] = "@(#)initscr.c 8.2 (Berkeley) 5/4/94";
36 #else
37 __RCSID("$NetBSD: initscr.c,v 1.29 2007/01/22 21:14:53 jdc Exp $");
38 #endif
39 #endif /* not lint */
40
41 #include <stdlib.h>
42
43 #include "curses.h"
44 #include "curses_private.h"
45
46
47 /*
48 * initscr --
49 * Initialize the current and standard screen.
50 */
51 WINDOW *
initscr(void)52 initscr(void)
53 {
54 const char *sp;
55
56 #ifdef DEBUG
57 __CTRACE(__CTRACE_INIT, "initscr\n");
58 #endif
59
60 /*
61 * If My_term is set, or can't find a terminal in the environment,
62 * use Def_term.
63 */
64 if (My_term || (sp = getenv("TERM")) == NULL)
65 sp = Def_term;
66
67 /* LINTED const castaway; newterm does not modify sp! */
68 if ((_cursesi_screen = newterm((char *) sp, stdout, stdin)) == NULL)
69 return NULL;
70
71 __echoit = _cursesi_screen->echoit;
72 __pfast = _cursesi_screen->pfast;
73 __rawmode = _cursesi_screen->rawmode;
74 __noqch = _cursesi_screen->noqch;
75 COLS = _cursesi_screen->COLS;
76 LINES = _cursesi_screen->LINES;
77 COLORS = _cursesi_screen->COLORS;
78 COLOR_PAIRS = _cursesi_screen->COLOR_PAIRS;
79 __GT = _cursesi_screen->GT;
80 __NONL = _cursesi_screen->NONL;
81 __UPPERCASE = _cursesi_screen->UPPERCASE;
82
83 set_term(_cursesi_screen);
84 wrefresh(curscr);
85
86 return (stdscr);
87 }
88