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