initscr.c revision 1.24 
1/*	$NetBSD: initscr.c,v 1.24 2003/01/27 21:09:20 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. All advertising materials mentioning features or use of this software
16 *    must display the following acknowledgement:
17 *	This product includes software developed by the University of
18 *	California, Berkeley and its contributors.
19 * 4. Neither the name of the University nor the names of its contributors
20 *    may be used to endorse or promote products derived from this software
21 *    without specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * SUCH DAMAGE.
34 */
35
36#include <sys/cdefs.h>
37#ifndef lint
38#if 0
39static char sccsid[] = "@(#)initscr.c	8.2 (Berkeley) 5/4/94";
40#else
41__RCSID("$NetBSD: initscr.c,v 1.24 2003/01/27 21:09:20 jdc Exp $");
42#endif
43#endif	/* not lint */
44
45#include <signal.h>
46#include <stdlib.h>
47
48#include "curses.h"
49#include "curses_private.h"
50
51/* Window list */
52struct __winlist	*__winlistp;
53
54
55/*
56 * initscr --
57 *	Initialize the current and standard screen.
58 */
59WINDOW *
60initscr(void)
61{
62	const char *sp;
63
64#ifdef DEBUG
65	__CTRACE("initscr\n");
66#endif
67
68	/*
69	 * If My_term is set, or can't find a terminal in the environment,
70	 * use Def_term.
71	 */
72	if (My_term || (sp = getenv("TERM")) == NULL)
73		sp = Def_term;
74
75	/* LINTED const castaway; newterm does not modify sp! */
76	if ((_cursesi_screen = newterm((char *) sp, stdout, stdin)) == NULL)
77		return NULL;
78
79	__echoit = _cursesi_screen->echoit;
80        __pfast = _cursesi_screen->pfast;
81	__rawmode = _cursesi_screen->rawmode;
82	__noqch = _cursesi_screen->noqch;
83	COLS = _cursesi_screen->COLS;
84	LINES = _cursesi_screen->LINES;
85	COLORS = _cursesi_screen->COLORS;
86	COLOR_PAIRS = _cursesi_screen->COLOR_PAIRS;
87	__GT = _cursesi_screen->GT;
88	__NONL = _cursesi_screen->NONL;
89	__UPPERCASE = _cursesi_screen->UPPERCASE;
90
91	set_term(_cursesi_screen);
92	wrefresh(curscr);
93
94	return (stdscr);
95}
96