/* * 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 #include #include #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); }