xref: /titanic_50/usr/src/ucblib/libcurses/initscr.c (revision 7c478bd95313f5f23a4c958a745db2134aa03244)
1*7c478bd9Sstevel@tonic-gate /*
2*7c478bd9Sstevel@tonic-gate  * Copyright 2001 Sun Microsystems, Inc.  All rights reserved.
3*7c478bd9Sstevel@tonic-gate  * Use is subject to license terms.
4*7c478bd9Sstevel@tonic-gate  */
5*7c478bd9Sstevel@tonic-gate 
6*7c478bd9Sstevel@tonic-gate /*	Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T	*/
7*7c478bd9Sstevel@tonic-gate /*	  All Rights Reserved  	*/
8*7c478bd9Sstevel@tonic-gate 
9*7c478bd9Sstevel@tonic-gate /*
10*7c478bd9Sstevel@tonic-gate  * Copyright (c) 1980 Regents of the University of California.
11*7c478bd9Sstevel@tonic-gate  * All rights reserved.  The Berkeley software License Agreement
12*7c478bd9Sstevel@tonic-gate  * specifies the terms and conditions for redistribution.
13*7c478bd9Sstevel@tonic-gate  */
14*7c478bd9Sstevel@tonic-gate 
15*7c478bd9Sstevel@tonic-gate #pragma ident	"%Z%%M%	%I%	%E% SMI"
16*7c478bd9Sstevel@tonic-gate 
17*7c478bd9Sstevel@tonic-gate /*LINTLIBRARY*/
18*7c478bd9Sstevel@tonic-gate 
19*7c478bd9Sstevel@tonic-gate #ifndef lint
20*7c478bd9Sstevel@tonic-gate static char
21*7c478bd9Sstevel@tonic-gate sccsid[] = "@(#)initscr.c 1.6 88/02/08 SMI"; /* from UCB 5.1 85/06/07 */
22*7c478bd9Sstevel@tonic-gate #endif /* not lint */
23*7c478bd9Sstevel@tonic-gate 
24*7c478bd9Sstevel@tonic-gate #include	"curses.ext"
25*7c478bd9Sstevel@tonic-gate #include	<term.h>
26*7c478bd9Sstevel@tonic-gate #include	<stdlib.h>
27*7c478bd9Sstevel@tonic-gate #include	<signal.h>
28*7c478bd9Sstevel@tonic-gate 
29*7c478bd9Sstevel@tonic-gate /*
30*7c478bd9Sstevel@tonic-gate  *	This routine initializes the current and standard screen.
31*7c478bd9Sstevel@tonic-gate  */
32*7c478bd9Sstevel@tonic-gate 
33*7c478bd9Sstevel@tonic-gate WINDOW *
initscr(void)34*7c478bd9Sstevel@tonic-gate initscr(void)
35*7c478bd9Sstevel@tonic-gate {
36*7c478bd9Sstevel@tonic-gate 	char	*sp;
37*7c478bd9Sstevel@tonic-gate 
38*7c478bd9Sstevel@tonic-gate #ifdef DEBUG
39*7c478bd9Sstevel@tonic-gate 	fprintf(outf, "INITSCR()\n");
40*7c478bd9Sstevel@tonic-gate #endif
41*7c478bd9Sstevel@tonic-gate 	if (My_term)
42*7c478bd9Sstevel@tonic-gate 		(void) setterm(Def_term);
43*7c478bd9Sstevel@tonic-gate 	else {
44*7c478bd9Sstevel@tonic-gate 		(void) gettmode();
45*7c478bd9Sstevel@tonic-gate 		if ((sp = getenv("TERM")) == NULL)
46*7c478bd9Sstevel@tonic-gate 			sp = Def_term;
47*7c478bd9Sstevel@tonic-gate 		(void) setterm(sp);
48*7c478bd9Sstevel@tonic-gate #ifdef DEBUG
49*7c478bd9Sstevel@tonic-gate 		fprintf(outf, "INITSCR: term = %s\n", sp);
50*7c478bd9Sstevel@tonic-gate #endif
51*7c478bd9Sstevel@tonic-gate 	}
52*7c478bd9Sstevel@tonic-gate 	(void) _puts(TI);
53*7c478bd9Sstevel@tonic-gate 	(void) _puts(VS);
54*7c478bd9Sstevel@tonic-gate #ifdef SIGTSTP
55*7c478bd9Sstevel@tonic-gate 	(void) signal(SIGTSTP, (void(*)(int))tstp);
56*7c478bd9Sstevel@tonic-gate #endif
57*7c478bd9Sstevel@tonic-gate 	if (curscr != NULL) {
58*7c478bd9Sstevel@tonic-gate #ifdef DEBUG
59*7c478bd9Sstevel@tonic-gate 		fprintf(outf, "INITSCR: curscr = 0%o\n", curscr);
60*7c478bd9Sstevel@tonic-gate #endif
61*7c478bd9Sstevel@tonic-gate 		(void) delwin(curscr);
62*7c478bd9Sstevel@tonic-gate 	}
63*7c478bd9Sstevel@tonic-gate #ifdef DEBUG
64*7c478bd9Sstevel@tonic-gate 	fprintf(outf, "LINES = %d, COLS = %d\n", LINES, COLS);
65*7c478bd9Sstevel@tonic-gate #endif
66*7c478bd9Sstevel@tonic-gate 	if ((curscr = newwin(LINES, COLS, 0, 0)) == ERR)
67*7c478bd9Sstevel@tonic-gate 		return (ERR);
68*7c478bd9Sstevel@tonic-gate 	clearok(curscr, TRUE);
69*7c478bd9Sstevel@tonic-gate 	curscr->_flags &= ~_FULLLINE;
70*7c478bd9Sstevel@tonic-gate 	if (stdscr != NULL) {
71*7c478bd9Sstevel@tonic-gate #ifdef DEBUG
72*7c478bd9Sstevel@tonic-gate 		fprintf(outf, "INITSCR: stdscr = 0%o\n", stdscr);
73*7c478bd9Sstevel@tonic-gate #endif
74*7c478bd9Sstevel@tonic-gate 		(void) delwin(stdscr);
75*7c478bd9Sstevel@tonic-gate 	}
76*7c478bd9Sstevel@tonic-gate 	stdscr = newwin(LINES, COLS, 0, 0);
77*7c478bd9Sstevel@tonic-gate 	return (stdscr);
78*7c478bd9Sstevel@tonic-gate }
79