155 lines
4.2 KiB
C
155 lines
4.2 KiB
C
/* $NetBSD: inchstr.c,v 1.1 2001/01/01 10:36:12 simonb Exp $ */
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/*
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* Copyright 2001 Wasabi Systems, Inc.
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* All rights reserved.
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*
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* Written by Simon Burge for Wasabi Systems, Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed for the NetBSD Project by
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* Wasabi Systems, Inc.
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* 4. The name of Wasabi Systems, Inc. may not be used to endorse
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* or promote products derived from this software without specific prior
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* written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC. BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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#ifndef lint
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__RCSID("$NetBSD: inchstr.c,v 1.1 2001/01/01 10:36:12 simonb Exp $");
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#endif /* not lint */
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#include "curses.h"
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#include "curses_private.h"
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#ifndef _CURSES_USE_MACROS
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/*
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* inchstr, inchnstr --
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* Return an array of characters at cursor position from stdscr.
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*/
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__warn_references(inchstr,
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"warning: this program uses inchstr(), which is unsafe.")
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int
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inchstr(chtype *chstr)
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{
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return winchstr(stdscr, chstr);
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}
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int
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inchnstr(chtype *chstr, int n)
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{
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return winchnstr(stdscr, chstr, n);
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}
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/*
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* mvinchstr, mvinchnstr --
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* Return an array of characters at position (y, x) from stdscr.
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*/
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__warn_references(mvinchstr,
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"warning: this program uses mvinchstr(), which is unsafe.")
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int
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mvinchstr(int y, int x, chtype *chstr)
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{
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return mvwinchstr(stdscr, y, x, chstr);
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}
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int
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mvinchnstr(int y, int x, chtype *chstr, int n)
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{
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return mvwinchnstr(stdscr, y, x, chstr, n);
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}
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/*
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* mvwinchstr, mvwinchnstr --
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* Return an array characters at position (y, x) from the given window.
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*/
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__warn_references(mvwinchstr,
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"warning: this program uses mvwinchstr(), which is unsafe.")
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int
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mvwinchstr(WINDOW *win, int y, int x, chtype *chstr)
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{
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if (wmove(win, y, x) == ERR)
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return ERR;
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return winchstr(win, chstr);
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}
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int
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mvwinchnstr(WINDOW *win, int y, int x, chtype *chstr, int n)
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{
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if (wmove(win, y, x) == ERR)
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return ERR;
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return winchnstr(win, chstr, n);
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}
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#endif /* _CURSES_USE_MACROS */
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/*
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* winchstr, winchnstr --
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* Return an array of characters at cursor position.
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*/
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__warn_references(winchstr,
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"warning: this program uses winchstr(), which is unsafe.")
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int
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winchstr(WINDOW *win, chtype *chstr)
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{
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return winchnstr(win, chstr, -1);
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}
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/*
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* XXX: This should go in a manpage!
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* - SUSv2/xcurses doesn't document whether the trailing 0 is included
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* in the length count or not. For safety's sake it _is_ included.
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*/
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int
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winchnstr(WINDOW *win, chtype *chstr, int n)
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{
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__LDATA *end, *start;
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int epos;
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if (chstr == NULL)
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return ERR;
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start = &win->lines[win->cury]->line[win->curx];
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/* (n - 1) to leave room for the trailing 0 element */
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if (n < 0 || (n - 1) > win->maxx - win->curx - 1)
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epos = win->maxx - 1;
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else
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/* extra -1 for trailing NUL */
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epos = win->curx + n -1 - 1;
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end = &win->lines[win->cury]->line[epos];
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while (start <= end) {
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*chstr = start->ch;
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chstr++;
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start++;
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}
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*chstr = 0;
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return OK;
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}
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