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/* $NetBSD: inchstr.c,v 1.6 2012/04/21 11:33:16 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 1.6 2012/04/21 11:33:16 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;
}
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