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initscr.c revision 1.26 
      1 /*	$NetBSD: initscr.c,v 1.26 2003/08/07 16:44:22 agc 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 1.26 2003/08/07 16:44:22 agc Exp $");
     38 #endif
     39 #endif	/* not lint */
     40 
     41 #include <signal.h>
     42 #include <stdlib.h>
     43 
     44 #include "curses.h"
     45 #include "curses_private.h"
     46 
     47 
     48 /*
     49  * initscr --
     50  *	Initialize the current and standard screen.
     51  */
     52 WINDOW *
     53 initscr(void)
     54 {
     55 	const char *sp;
     56 
     57 #ifdef DEBUG
     58 	__CTRACE("initscr\n");
     59 #endif
     60 
     61 	/*
     62 	 * If My_term is set, or can't find a terminal in the environment,
     63 	 * use Def_term.
     64 	 */
     65 	if (My_term || (sp = getenv("TERM")) == NULL)
     66 		sp = Def_term;
     67 
     68 	/* LINTED const castaway; newterm does not modify sp! */
     69 	if ((_cursesi_screen = newterm((char *) sp, stdout, stdin)) == NULL)
     70 		return NULL;
     71 
     72 	__echoit = _cursesi_screen->echoit;
     73         __pfast = _cursesi_screen->pfast;
     74 	__rawmode = _cursesi_screen->rawmode;
     75 	__noqch = _cursesi_screen->noqch;
     76 	COLS = _cursesi_screen->COLS;
     77 	LINES = _cursesi_screen->LINES;
     78 	COLORS = _cursesi_screen->COLORS;
     79 	COLOR_PAIRS = _cursesi_screen->COLOR_PAIRS;
     80 	__GT = _cursesi_screen->GT;
     81 	__NONL = _cursesi_screen->NONL;
     82 	__UPPERCASE = _cursesi_screen->UPPERCASE;
     83 
     84 	set_term(_cursesi_screen);
     85 	wrefresh(curscr);
     86 
     87 	return (stdscr);
     88 }
     89