1*0Sstevel@tonic-gate /*
2*0Sstevel@tonic-gate * CDDL HEADER START
3*0Sstevel@tonic-gate *
4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the
5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only
6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance
7*0Sstevel@tonic-gate * with the License.
8*0Sstevel@tonic-gate *
9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing.
11*0Sstevel@tonic-gate * See the License for the specific language governing permissions
12*0Sstevel@tonic-gate * and limitations under the License.
13*0Sstevel@tonic-gate *
14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each
15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the
17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying
18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner]
19*0Sstevel@tonic-gate *
20*0Sstevel@tonic-gate * CDDL HEADER END
21*0Sstevel@tonic-gate */
22*0Sstevel@tonic-gate /*
23*0Sstevel@tonic-gate * Copyright 1997 Sun Microsystems, Inc. All rights reserved.
24*0Sstevel@tonic-gate * Use is subject to license terms.
25*0Sstevel@tonic-gate */
26*0Sstevel@tonic-gate
27*0Sstevel@tonic-gate /* Copyright (c) 1988 AT&T */
28*0Sstevel@tonic-gate /* All Rights Reserved */
29*0Sstevel@tonic-gate
30*0Sstevel@tonic-gate /*
31*0Sstevel@tonic-gate * University Copyright- Copyright (c) 1982, 1986, 1988
32*0Sstevel@tonic-gate * The Regents of the University of California
33*0Sstevel@tonic-gate * All Rights Reserved
34*0Sstevel@tonic-gate *
35*0Sstevel@tonic-gate * University Acknowledgment- Portions of this document are derived from
36*0Sstevel@tonic-gate * software developed by the University of California, Berkeley, and its
37*0Sstevel@tonic-gate * contributors.
38*0Sstevel@tonic-gate */
39*0Sstevel@tonic-gate
40*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI"
41*0Sstevel@tonic-gate
42*0Sstevel@tonic-gate /*LINTLIBRARY*/
43*0Sstevel@tonic-gate
44*0Sstevel@tonic-gate #include <stdlib.h>
45*0Sstevel@tonic-gate #include <signal.h>
46*0Sstevel@tonic-gate #include <sys/types.h>
47*0Sstevel@tonic-gate #include "curses_inc.h"
48*0Sstevel@tonic-gate
49*0Sstevel@tonic-gate /*
50*0Sstevel@tonic-gate * This routine initializes the current and standard screen,
51*0Sstevel@tonic-gate * and sets up the terminal. In case of error, initscr aborts.
52*0Sstevel@tonic-gate * If you want an error status returned, call
53*0Sstevel@tonic-gate * scp = newscreen(getenv("TERM"), 0, 0, 0, stdout, stdin);
54*0Sstevel@tonic-gate */
55*0Sstevel@tonic-gate
56*0Sstevel@tonic-gate WINDOW *
initscr(void)57*0Sstevel@tonic-gate initscr(void)
58*0Sstevel@tonic-gate {
59*0Sstevel@tonic-gate #ifdef SIGPOLL
60*0Sstevel@tonic-gate void (*savsignal)(int);
61*0Sstevel@tonic-gate extern void _ccleanup(int);
62*0Sstevel@tonic-gate #else /* SIGPOLL */
63*0Sstevel@tonic-gate int (*savsignal)();
64*0Sstevel@tonic-gate extern int _ccleanup(int);
65*0Sstevel@tonic-gate #endif /* SIGPOLL */
66*0Sstevel@tonic-gate
67*0Sstevel@tonic-gate #ifdef SIGTSTP
68*0Sstevel@tonic-gate extern void _tstp(int);
69*0Sstevel@tonic-gate #endif /* SIGTSTP */
70*0Sstevel@tonic-gate
71*0Sstevel@tonic-gate static char i_called_before = FALSE;
72*0Sstevel@tonic-gate
73*0Sstevel@tonic-gate /* Free structures we are about to throw away so we can reuse the memory. */
74*0Sstevel@tonic-gate
75*0Sstevel@tonic-gate if (i_called_before && SP) {
76*0Sstevel@tonic-gate delscreen(SP);
77*0Sstevel@tonic-gate SP = NULL;
78*0Sstevel@tonic-gate }
79*0Sstevel@tonic-gate if (newscreen(NULL, 0, 0, 0, stdout, stdin) == NULL) {
80*0Sstevel@tonic-gate (void) reset_shell_mode();
81*0Sstevel@tonic-gate if (term_errno != -1)
82*0Sstevel@tonic-gate termerr();
83*0Sstevel@tonic-gate else
84*0Sstevel@tonic-gate curserr();
85*0Sstevel@tonic-gate exit(1);
86*0Sstevel@tonic-gate }
87*0Sstevel@tonic-gate
88*0Sstevel@tonic-gate #ifdef DEBUG
89*0Sstevel@tonic-gate if (outf)
90*0Sstevel@tonic-gate fprintf(outf, "initscr: term = %s\n", SP);
91*0Sstevel@tonic-gate #endif /* DEBUG */
92*0Sstevel@tonic-gate i_called_before = TRUE;
93*0Sstevel@tonic-gate
94*0Sstevel@tonic-gate #ifdef SIGTSTP
95*0Sstevel@tonic-gate /*LINTED*/
96*0Sstevel@tonic-gate if ((savsignal = signal(SIGTSTP, SIG_IGN)) == SIG_DFL)
97*0Sstevel@tonic-gate (void) signal(SIGTSTP, _tstp);
98*0Sstevel@tonic-gate else
99*0Sstevel@tonic-gate (void) signal(SIGTSTP, savsignal);
100*0Sstevel@tonic-gate #endif /* SIGTSTP */
101*0Sstevel@tonic-gate /*LINTED*/
102*0Sstevel@tonic-gate if ((savsignal = signal(SIGINT, SIG_IGN)) == SIG_DFL)
103*0Sstevel@tonic-gate (void) signal(SIGINT, _ccleanup);
104*0Sstevel@tonic-gate else
105*0Sstevel@tonic-gate (void) signal(SIGINT, savsignal);
106*0Sstevel@tonic-gate
107*0Sstevel@tonic-gate /*LINTED*/
108*0Sstevel@tonic-gate if ((savsignal = signal(SIGQUIT, SIG_IGN)) == SIG_DFL)
109*0Sstevel@tonic-gate (void) signal(SIGQUIT, _ccleanup);
110*0Sstevel@tonic-gate else
111*0Sstevel@tonic-gate (void) signal(SIGQUIT, savsignal);
112*0Sstevel@tonic-gate
113*0Sstevel@tonic-gate return (stdscr);
114*0Sstevel@tonic-gate }
115