. abandons mixer, gomoku, talk, talkd, top from base system . compile top with clang so no ack-compiled program needs -lcurses any more
194 lines
4.8 KiB
C
194 lines
4.8 KiB
C
/* $NetBSD: inwstr.c,v 1.3 2009/07/22 16:57:15 roy Exp $ */
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/*
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* Copyright (c) 2005 The NetBSD Foundation Inc.
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* All rights reserved.
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*
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* This code is derived from code donated to the NetBSD Foundation
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* by Ruibiao Qiu <ruibiao@arl.wustl.edu,ruibiao@gmail.com>.
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*
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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. Neither the name of the NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND
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* CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
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* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* 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: inwstr.c,v 1.3 2009/07/22 16:57:15 roy 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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/*
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* inwstr, innwstr --
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* Return a string of wide characters at cursor position from stdscr.
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*/
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__warn_references(inwstr,
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"warning: this program uses inwstr(), which is unsafe.")
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int
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inwstr(wchar_t *wstr)
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{
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#ifndef HAVE_WCHAR
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return ERR;
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#else
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return winwstr(stdscr, wstr);
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#endif /* HAVE_WCHAR */
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}
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int
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innwstr(wchar_t *wstr, int n)
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{
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#ifndef HAVE_WCHAR
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return ERR;
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#else
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return winnwstr(stdscr, wstr, n);
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#endif /* HAVE_WCHAR */
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}
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/*
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* mvinwstr, mvinnwstr --
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* Return a string of wide characters at position (y, x) from stdscr.
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*/
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__warn_references(mvinwstr,
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"warning: this program uses mvinwstr(), which is unsafe.")
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int
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mvinwstr(int y, int x, wchar_t *wstr)
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{
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#ifndef HAVE_WCHAR
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return ERR;
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#else
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return mvwinwstr(stdscr, y, x, wstr);
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#endif /* HAVE_WCHAR */
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}
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int
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mvinnwstr(int y, int x, wchar_t *wstr, int n)
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{
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#ifndef HAVE_WCHAR
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return ERR;
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#else
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return mvwinnwstr(stdscr, y, x, wstr, n);
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#endif /* HAVE_WCHAR */
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}
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/*
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* mvwinwstr, mvwinnwstr --
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* Return an array wide characters at position (y, x) from the given window.
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*/
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__warn_references(mvwinwstr,
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"warning: this program uses mvwinwstr(), which is unsafe.")
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int
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mvwinwstr(WINDOW *win, int y, int x, wchar_t *wstr)
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{
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#ifndef HAVE_WCHAR
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return ERR;
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#else
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if (wmove(win, y, x) == ERR)
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return ERR;
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return winwstr(win, wstr);
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#endif /* HAVE_WCHAR */
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}
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int
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mvwinnwstr(WINDOW *win, int y, int x, wchar_t *wstr, int n)
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{
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#ifndef HAVE_WCHAR
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return ERR;
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#else
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if (wmove(win, y, x) == ERR)
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return ERR;
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return winnwstr(win, wstr, n);
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#endif /* HAVE_WCHAR */
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}
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/*
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* winwstr, winnwstr --
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* Return a string of wide characters at cursor position.
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*/
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__warn_references(winwstr,
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"warning: this program uses winwstr(), which is unsafe.")
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int
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winwstr(WINDOW *win, wchar_t *wstr)
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{
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#ifndef HAVE_WCHAR
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return ERR;
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#else
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return winnwstr(win, wstr, -1);
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#endif /* HAVE_WCHAR */
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}
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/*
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* - winnwstr() returns the number of characters copied only of if it is
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* called with n >= 0 (ie, as in_wchnstr(), mvin_wchnstr(), mvwin_wchnstr()
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* or win_wchnstr()). If N < 0, it returns `OK'.
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* - SUSv2/xcurses doesn't document whether the trailing NUL is included
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* in the length count or not. For safety's sake it _is_ included.
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* - This implementation does not (yet) support multi-byte characters
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* strings.
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*/
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int
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winnwstr(WINDOW *win, wchar_t *wstr, int n)
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{
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#ifndef HAVE_WCHAR
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return ERR;
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#else
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__LDATA *start;
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int x, cw, cnt;
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wchar_t *wcp;
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if (wstr == NULL)
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return ERR;
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start = &win->alines[win->cury]->line[win->curx];
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x = win->curx;
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cw = WCOL( *start );
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if (cw < 0) {
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start += cw;
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x += cw;
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}
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cnt = 0;
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wcp = wstr;
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/* (n - 1) to leave room for the trailing 0 element */
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while ((x < win->maxx) && ((n < 0) || ((n > 1) && (cnt < n - 1)))) {
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cw = WCOL( *start );
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*wcp = start->ch;
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wcp++;
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cnt++;
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x += cw;
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if ( x < win->maxx )
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start += cw;
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}
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*wcp = L'\0';
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if (n < 0)
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return OK;
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else
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return cnt;
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#endif /* HAVE_WCHAR */
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}
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