2a780e62ed
without refresh. If the window is not dirty but the window cursor position does not match curscr then move the cursor. This fixes the issues seen in PR lib/54263.
166 lines
4.3 KiB
C
166 lines
4.3 KiB
C
/* $NetBSD: inchstr.c,v 1.10 2019/06/09 07:40:14 blymn Exp $ */
|
|
|
|
/*
|
|
* Copyright 2001 Wasabi Systems, Inc.
|
|
* All rights reserved.
|
|
*
|
|
* Written by Simon Burge for Wasabi Systems, Inc.
|
|
*
|
|
* 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 for the NetBSD Project by
|
|
* Wasabi Systems, Inc.
|
|
* 4. The name of Wasabi Systems, Inc. may not be used to endorse
|
|
* or promote products derived from this software without specific prior
|
|
* written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``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 WASABI SYSTEMS, INC. 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.
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
#ifndef lint
|
|
__RCSID("$NetBSD: inchstr.c,v 1.10 2019/06/09 07:40:14 blymn Exp $");
|
|
#endif /* not lint */
|
|
|
|
#include "curses.h"
|
|
#include "curses_private.h"
|
|
|
|
#ifndef _CURSES_USE_MACROS
|
|
|
|
/*
|
|
* inchstr, inchnstr --
|
|
* Return an array of characters at cursor position from stdscr.
|
|
*/
|
|
__warn_references(inchstr,
|
|
"warning: this program uses inchstr(), which is unsafe.");
|
|
int
|
|
inchstr(chtype *chstr)
|
|
{
|
|
|
|
return winchstr(stdscr, chstr);
|
|
}
|
|
|
|
int
|
|
inchnstr(chtype *chstr, int n)
|
|
{
|
|
|
|
return winchnstr(stdscr, chstr, n);
|
|
}
|
|
|
|
/*
|
|
* mvinchstr, mvinchnstr --
|
|
* Return an array of characters at position (y, x) from stdscr.
|
|
*/
|
|
__warn_references(mvinchstr,
|
|
"warning: this program uses mvinchstr(), which is unsafe.");
|
|
int
|
|
mvinchstr(int y, int x, chtype *chstr)
|
|
{
|
|
|
|
return mvwinchstr(stdscr, y, x, chstr);
|
|
}
|
|
|
|
int
|
|
mvinchnstr(int y, int x, chtype *chstr, int n)
|
|
{
|
|
|
|
return mvwinchnstr(stdscr, y, x, chstr, n);
|
|
}
|
|
|
|
/*
|
|
* mvwinchstr, mvwinchnstr --
|
|
* Return an array characters at position (y, x) from the given window.
|
|
*/
|
|
__warn_references(mvwinchstr,
|
|
"warning: this program uses mvwinchstr(), which is unsafe.");
|
|
int
|
|
mvwinchstr(WINDOW *win, int y, int x, chtype *chstr)
|
|
{
|
|
|
|
if (wmove(win, y, x) == ERR)
|
|
return ERR;
|
|
|
|
return winchstr(win, chstr);
|
|
}
|
|
|
|
int
|
|
mvwinchnstr(WINDOW *win, int y, int x, chtype *chstr, int n)
|
|
{
|
|
|
|
if (wmove(win, y, x) == ERR)
|
|
return ERR;
|
|
|
|
return winchnstr(win, chstr, n);
|
|
}
|
|
|
|
#endif /* _CURSES_USE_MACROS */
|
|
|
|
/*
|
|
* winchstr, winchnstr --
|
|
* Return an array of characters at cursor position.
|
|
*/
|
|
__warn_references(winchstr,
|
|
"warning: this program uses winchstr(), which is unsafe.");
|
|
int
|
|
winchstr(WINDOW *win, chtype *chstr)
|
|
{
|
|
|
|
return winchnstr(win, chstr, -1);
|
|
}
|
|
|
|
/*
|
|
* XXX: This should go in a manpage!
|
|
* - SUSv2/xcurses doesn't document whether the trailing 0 is included
|
|
* in the length count or not. For safety's sake it _is_ included.
|
|
*/
|
|
int
|
|
winchnstr(WINDOW *win, chtype *chstr, int n)
|
|
{
|
|
__LDATA *end, *start;
|
|
int epos;
|
|
|
|
if (chstr == NULL)
|
|
return ERR;
|
|
|
|
start = &win->alines[win->cury]->line[win->curx];
|
|
/* (n - 1) to leave room for the trailing 0 element */
|
|
if (n < 0 || (n - 1) > win->maxx - win->curx - 1)
|
|
epos = win->maxx - 1;
|
|
else
|
|
/* extra -1 for trailing NUL */
|
|
epos = win->curx + n -1 - 1;
|
|
end = &win->alines[win->cury]->line[epos];
|
|
|
|
while (start <= end) {
|
|
/* or in the attributes but strip out internal flags */
|
|
#ifdef HAVE_WCHAR
|
|
*chstr = start->ch | (start->attr & ~__ACS_IS_WACS);
|
|
#else
|
|
*chstr = start->ch | start->attr;
|
|
#endif
|
|
chstr++;
|
|
start++;
|
|
}
|
|
*chstr = 0;
|
|
|
|
return OK;
|
|
}
|