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initscr.c revision 1.23 
      1 /*	$NetBSD: initscr.c,v 1.23 2002/01/02 10:38:28 blymn 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
     39 static char sccsid[] = "@(#)initscr.c	8.2 (Berkeley) 5/4/94";
     40 #else
     41 __RCSID("$NetBSD: initscr.c,v 1.23 2002/01/02 10:38:28 blymn 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 */
     52 struct __winlist	*__winlistp;
     53 
     54 
     55 /*
     56  * initscr --
     57  *	Initialize the current and standard screen.
     58  */
     59 WINDOW *
     60 initscr(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 	__nca = _cursesi_screen->nca;
     84 	COLS = _cursesi_screen->COLS;
     85 	LINES = _cursesi_screen->LINES;
     86 	COLORS = _cursesi_screen->COLORS;
     87 	COLOR_PAIRS = _cursesi_screen->COLOR_PAIRS;
     88 	__GT = _cursesi_screen->GT;
     89 	__NONL = _cursesi_screen->NONL;
     90 	__UPPERCASE = _cursesi_screen->UPPERCASE;
     91 
     92 	set_term(_cursesi_screen);
     93 	wrefresh(curscr);
     94 
     95 	return (stdscr);
     96 }
     97