6c8ac72df7
distributed in keith bostic's nvi (got his permission first). Most changes are cosmetic, but a few errors (mostly in tty..c) were cleared up. Reviewed by: Sean Eric Fagan
96 lines
2.9 KiB
C
96 lines
2.9 KiB
C
/*
|
|
* Copyright (c) 1981, 1993, 1994
|
|
* The Regents of the University of California. All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by the University of
|
|
* California, Berkeley and its contributors.
|
|
* 4. Neither the name of the University nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*/
|
|
|
|
#ifndef lint
|
|
static char sccsid[] = "@(#)initscr.c 8.2 (Berkeley) 5/4/94";
|
|
#endif /* not lint */
|
|
|
|
#include <signal.h>
|
|
#include <stdlib.h>
|
|
|
|
#include "curses.h"
|
|
|
|
/*
|
|
* initscr --
|
|
* Initialize the current and standard screen.
|
|
*/
|
|
WINDOW *
|
|
initscr()
|
|
{
|
|
register char *sp;
|
|
|
|
#ifdef DEBUG
|
|
__CTRACE("initscr\n");
|
|
#endif
|
|
__echoit = 1;
|
|
__pfast = __rawmode = __noqch = 0;
|
|
|
|
if (gettmode() == ERR)
|
|
return (NULL);
|
|
|
|
/*
|
|
* If My_term is set, or can't find a terminal in the environment,
|
|
* use Def_term.
|
|
*/
|
|
if (My_term || (sp = getenv("TERM")) == NULL)
|
|
sp = Def_term;
|
|
if (setterm(sp) == ERR)
|
|
return (NULL);
|
|
|
|
/* Need either homing or cursor motion for refreshes */
|
|
if (!HO && !CM)
|
|
return (NULL);
|
|
|
|
if (curscr != NULL)
|
|
delwin(curscr);
|
|
if ((curscr = newwin(LINES, COLS, 0, 0)) == ERR)
|
|
return (NULL);
|
|
clearok(curscr, 1);
|
|
|
|
if (stdscr != NULL)
|
|
delwin(stdscr);
|
|
if ((stdscr = newwin(LINES, COLS, 0, 0)) == ERR) {
|
|
delwin(curscr);
|
|
return (NULL);
|
|
}
|
|
|
|
__set_stophandler();
|
|
|
|
#ifdef DEBUG
|
|
__CTRACE("initscr: LINES = %d, COLS = %d\n", LINES, COLS);
|
|
#endif
|
|
__startwin();
|
|
|
|
return (stdscr);
|
|
}
|