1 /* 2 * Copyright (c) 1981 Regents of the University of California. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 */ 33 34 #ifndef lint 35 /*static char sccsid[] = "from: @(#)initscr.c 5.7 (Berkeley) 8/23/92";*/ 36 static char rcsid[] = "$Id: initscr.c,v 1.3 1993/08/07 05:48:55 mycroft Exp $"; 37 #endif /* not lint */ 38 39 #include <curses.h> 40 #include <signal.h> 41 #include <stdlib.h> 42 43 /* 44 * initscr -- 45 * Initialize the current and standard screen. 46 */ 47 WINDOW * 48 initscr() 49 { 50 register char *sp; 51 52 #ifdef DEBUG 53 __TRACE("initscr\n"); 54 #endif 55 if (My_term) { 56 if (setterm(Def_term) == ERR) 57 return (NULL); 58 } else { 59 gettmode(); 60 if ((sp = getenv("TERM")) == NULL) 61 sp = Def_term; 62 if (setterm(sp) == ERR) 63 return (NULL); 64 #ifdef DEBUG 65 __TRACE("initscr: term = %s\n", sp); 66 #endif 67 } 68 tputs(TI, 0, __cputchar); 69 tputs(VS, 0, __cputchar); 70 (void)signal(SIGTSTP, tstp); 71 if (curscr != NULL) { 72 #ifdef DEBUG 73 __TRACE("initscr: curscr = 0%o\n", curscr); 74 #endif 75 delwin(curscr); 76 } 77 #ifdef DEBUG 78 __TRACE("initscr: LINES = %d, COLS = %d\n", LINES, COLS); 79 #endif 80 if ((curscr = newwin(LINES, COLS, 0, 0)) == ERR) 81 return (NULL); 82 clearok(curscr, 1); 83 curscr->_flags &= ~_FULLLINE; 84 if (stdscr != NULL) { 85 #ifdef DEBUG 86 __TRACE("initscr: stdscr = 0%o\n", stdscr); 87 #endif 88 delwin(stdscr); 89 } 90 return(stdscr = newwin(LINES, COLS, 0, 0)); 91 } 92