141 lines
3.4 KiB
C
141 lines
3.4 KiB
C
/* $NetBSD: printw.c,v 1.29 2019/06/09 07:40:14 blymn Exp $ */
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/*
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* Copyright (c) 1981, 1993, 1994
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* The Regents of the University of California. All rights reserved.
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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 University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY 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 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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#if 0
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static char sccsid[] = "@(#)printw.c 8.3 (Berkeley) 5/4/94";
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#else
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__RCSID("$NetBSD: printw.c,v 1.29 2019/06/09 07:40:14 blymn Exp $");
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#endif
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#endif /* not lint */
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#include <stdarg.h>
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#include "curses.h"
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#include "curses_private.h"
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/*
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* printw and friends.
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*/
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/*
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* printw --
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* Printf on the standard screen.
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*/
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int
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printw(const char *fmt,...)
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{
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va_list ap;
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int ret;
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va_start(ap, fmt);
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ret = vw_printw(stdscr, fmt, ap);
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va_end(ap);
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return ret;
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}
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/*
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* wprintw --
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* Printf on the given window.
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*/
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int
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wprintw(WINDOW *win, const char *fmt,...)
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{
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va_list ap;
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int ret;
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va_start(ap, fmt);
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ret = vw_printw(win, fmt, ap);
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va_end(ap);
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return ret;
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}
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/*
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* mvprintw, mvwprintw --
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* Implement the mvprintw commands. Due to the variable number of
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* arguments, they cannot be macros. Sigh....
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*/
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int
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mvprintw(int y, int x, const char *fmt,...)
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{
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va_list ap;
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int ret;
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if (move(y, x) != OK)
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return ERR;
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va_start(ap, fmt);
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ret = vw_printw(stdscr, fmt, ap);
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va_end(ap);
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return ret;
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}
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int
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mvwprintw(WINDOW * win, int y, int x, const char *fmt,...)
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{
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va_list ap;
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int ret;
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if (wmove(win, y, x) != OK)
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return ERR;
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va_start(ap, fmt);
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ret = vw_printw(win, fmt, ap);
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va_end(ap);
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return ret;
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}
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/*
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* vw_printw --
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* This routine actually executes the printf and adds it to the window.
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*/
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int
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vw_printw(WINDOW *win, const char *fmt, va_list ap)
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{
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int n;
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if (win->fp == NULL) {
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win->fp = open_memstream(&win->buf, &win->buflen);
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if (__predict_false(win->fp == NULL))
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return ERR;
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} else
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rewind(win->fp);
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n = vfprintf(win->fp, fmt, ap);
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if (__predict_false(n == 0))
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return OK;
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if (__predict_false(n == -1))
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return ERR;
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if (__predict_false(fflush(win->fp) != 0))
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return ERR;
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return waddnstr(win, win->buf, n);
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}
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__strong_alias(vwprintw, vw_printw)
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