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