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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 1997 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
/* Copyright (c) 1988 AT&T */
/* All Rights Reserved */
/*
* University Copyright- Copyright (c) 1982, 1986, 1988
* The Regents of the University of California
* All Rights Reserved
*
* University Acknowledgment- Portions of this document are derived from
* software developed by the University of California, Berkeley, and its
* contributors.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
/*LINTLIBRARY*/
#include <stdlib.h>
#include <signal.h>
#include <sys/types.h>
#include "curses_inc.h"
/*
* This routine initializes the current and standard screen,
* and sets up the terminal. In case of error, initscr aborts.
* If you want an error status returned, call
* scp = newscreen(getenv("TERM"), 0, 0, 0, stdout, stdin);
*/
WINDOW *
initscr(void)
{
#ifdef SIGPOLL
void (*savsignal)(int);
extern void _ccleanup(int);
#else /* SIGPOLL */
int (*savsignal)();
extern int _ccleanup(int);
#endif /* SIGPOLL */
#ifdef SIGTSTP
extern void _tstp(int);
#endif /* SIGTSTP */
static char i_called_before = FALSE;
/* Free structures we are about to throw away so we can reuse the memory. */
if (i_called_before && SP) {
delscreen(SP);
SP = NULL;
}
if (newscreen(NULL, 0, 0, 0, stdout, stdin) == NULL) {
(void) reset_shell_mode();
if (term_errno != -1)
termerr();
else
curserr();
exit(1);
}
#ifdef DEBUG
if (outf)
fprintf(outf, "initscr: term = %s\n", SP);
#endif /* DEBUG */
i_called_before = TRUE;
#ifdef SIGTSTP
/*LINTED*/
if ((savsignal = signal(SIGTSTP, SIG_IGN)) == SIG_DFL)
(void) signal(SIGTSTP, _tstp);
else
(void) signal(SIGTSTP, savsignal);
#endif /* SIGTSTP */
/*LINTED*/
if ((savsignal = signal(SIGINT, SIG_IGN)) == SIG_DFL)
(void) signal(SIGINT, _ccleanup);
else
(void) signal(SIGINT, savsignal);
/*LINTED*/
if ((savsignal = signal(SIGQUIT, SIG_IGN)) == SIG_DFL)
(void) signal(SIGQUIT, _ccleanup);
else
(void) signal(SIGQUIT, savsignal);
return (stdscr);
}
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