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109 lines
3.0 KiB
C
109 lines
3.0 KiB
C
/* $NetBSD: help.c,v 1.5 2003/08/07 09:37:05 agc Exp $ */
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/*-
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* Copyright (c) 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* Barry Brachman.
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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[] = "@(#)help.c 8.1 (Berkeley) 6/11/93";
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#else
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__RCSID("$NetBSD: help.c,v 1.5 2003/08/07 09:37:05 agc Exp $");
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#endif
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#endif /* not lint */
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#include <curses.h>
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#include <stdio.h>
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#include "bog.h"
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#include "extern.h"
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extern int nlines;
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int
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help()
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{
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int eof, i;
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FILE *fp;
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WINDOW *win;
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char buf[BUFSIZ];
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if ((fp = fopen(HELPFILE, "r")) == NULL)
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return(-1);
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win = newwin(0, 0, 0, 0);
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clearok(win, 1);
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eof = 0;
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if (ungetc(getc(fp), fp) == EOF) {
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wprintw(win, "There doesn't seem to be any help.");
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eof = 1; /* Nothing there... */
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}
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while (!eof) {
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for (i = 0; i < nlines - 3; i++) {
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if (fgets(buf, sizeof(buf), fp) == (char *) NULL) {
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eof = 1;
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break;
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}
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if (buf[0] == '.' && buf[1] == '\n')
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break;
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wprintw(win, "%s", buf);
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}
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if (eof || ungetc(getc(fp), fp) == EOF) {
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eof = 1;
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break;
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}
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wmove(win, nlines - 1, 0);
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wprintw(win,
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"Type <space> to continue, anything else to quit...");
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wrefresh(win);
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if ((inputch() & 0177) != ' ')
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break;
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wclear(win);
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}
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fclose(fp);
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if (eof) {
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wmove(win, nlines - 1, 0);
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wprintw(win, "Hit any key to continue...");
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wrefresh(win);
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inputch();
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}
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delwin(win);
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#ifdef NCURSES_VERSION
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redrawwin(stdscr);
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#else
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clearok(stdscr, 1);
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refresh();
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#endif
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return(0);
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}
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