318 lines
6.8 KiB
C
318 lines
6.8 KiB
C
/* $NetBSD: main.c,v 1.13 2003/08/07 09:36:54 agc Exp $ */
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/*-
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* Copyright (c) 1990, 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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* Ed James.
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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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/*
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* Copyright (c) 1987 by Ed James, UC Berkeley. All rights reserved.
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*
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* Copy permission is hereby granted provided that this notice is
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* retained on all partial or complete copies.
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*
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* For more info on this and all of my stuff, mail edjames@berkeley.edu.
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*/
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#include <sys/cdefs.h>
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#ifndef lint
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__COPYRIGHT("@(#) Copyright (c) 1990, 1993\n\
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The Regents of the University of California. All rights reserved.\n");
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#endif /* not lint */
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#ifndef lint
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#if 0
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static char sccsid[] = "@(#)main.c 8.1 (Berkeley) 5/31/93";
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#else
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__RCSID("$NetBSD: main.c,v 1.13 2003/08/07 09:36:54 agc Exp $");
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#endif
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#endif /* not lint */
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#include "include.h"
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#include "pathnames.h"
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extern FILE *yyin;
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int
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main(ac, av)
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int ac;
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char *av[];
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{
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int seed;
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int f_usage = 0, f_list = 0, f_showscore = 0;
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int f_printpath = 0;
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const char *file = NULL;
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int ch;
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struct sigaction sa;
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#ifdef BSD
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struct itimerval itv;
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#endif
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/* Open the score file then revoke setgid privileges */
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open_score_file();
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setregid(getgid(), getgid());
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start_time = seed = time(NULL);
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while ((ch = getopt(ac, av, "ulstpg:f:r:")) != -1) {
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switch (ch) {
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case '?':
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case 'u':
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default:
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f_usage++;
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break;
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case 'l':
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f_list++;
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break;
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case 's':
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case 't':
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f_showscore++;
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break;
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case 'p':
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f_printpath++;
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break;
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case 'r':
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seed = atoi(optarg);
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break;
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case 'f':
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case 'g':
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file = optarg;
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break;
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}
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}
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if (optind < ac)
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f_usage++;
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srandom(seed);
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if (f_usage)
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fprintf(stderr,
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"Usage: %s -[u?lstp] [-[gf] game_name] [-r random seed]\n",
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av[0]);
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if (f_showscore)
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log_score(1);
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if (f_list)
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list_games();
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if (f_printpath) {
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char buf[100];
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strcpy(buf, _PATH_GAMES);
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buf[strlen(buf) - 1] = '\0';
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puts(buf);
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}
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if (f_usage || f_showscore || f_list || f_printpath)
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exit(0);
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if (file == NULL)
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file = default_game();
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else
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file = okay_game(file);
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if (file == NULL || read_file(file) < 0)
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exit(1);
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init_gr();
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setup_screen(sp);
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addplane();
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signal(SIGINT, quit);
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signal(SIGQUIT, quit);
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#ifdef BSD
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signal(SIGTSTP, SIG_IGN);
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signal(SIGSTOP, SIG_IGN);
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#endif
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signal(SIGHUP, log_score_quit);
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signal(SIGTERM, log_score_quit);
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tcgetattr(fileno(stdin), &tty_start);
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tty_new = tty_start;
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tty_new.c_lflag &= ~(ICANON|ECHO);
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tty_new.c_iflag |= ICRNL;
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tty_new.c_cc[VMIN] = 1;
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tty_new.c_cc[VTIME] = 0;
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tcsetattr(fileno(stdin), TCSADRAIN, &tty_new);
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sa.sa_handler = update;
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sigemptyset(&sa.sa_mask);
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sigaddset(&sa.sa_mask, SIGALRM);
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sigaddset(&sa.sa_mask, SIGINT);
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sa.sa_flags = 0;
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sigaction(SIGALRM, &sa, (struct sigaction *)0);
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#ifdef BSD
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itv.it_value.tv_sec = 0;
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itv.it_value.tv_usec = 1;
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itv.it_interval.tv_sec = sp->update_secs;
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itv.it_interval.tv_usec = 0;
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setitimer(ITIMER_REAL, &itv, NULL);
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#endif
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#ifdef SYSV
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alarm(sp->update_secs);
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#endif
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for (;;) {
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if (getcommand() != 1)
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planewin();
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else {
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#ifdef BSD
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itv.it_value.tv_sec = 0;
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itv.it_value.tv_usec = 0;
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setitimer(ITIMER_REAL, &itv, NULL);
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#endif
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#ifdef SYSV
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alarm(0);
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#endif
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update(0);
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#ifdef BSD
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itv.it_value.tv_sec = sp->update_secs;
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itv.it_value.tv_usec = 0;
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itv.it_interval.tv_sec = sp->update_secs;
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itv.it_interval.tv_usec = 0;
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setitimer(ITIMER_REAL, &itv, NULL);
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#endif
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#ifdef SYSV
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alarm(sp->update_secs);
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#endif
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}
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}
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}
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int
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read_file(s)
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const char *s;
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{
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int retval;
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file = s;
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yyin = fopen(s, "r");
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if (yyin == NULL) {
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warn("fopen %s", s);
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return (-1);
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}
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retval = yyparse();
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fclose(yyin);
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if (retval != 0)
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return (-1);
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else
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return (0);
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}
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const char *
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default_game()
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{
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FILE *fp;
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static char file[256];
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char line[256], games[256];
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strcpy(games, _PATH_GAMES);
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strcat(games, GAMES);
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if ((fp = fopen(games, "r")) == NULL) {
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warn("fopen %s", games);
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return (NULL);
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}
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if (fgets(line, sizeof(line), fp) == NULL) {
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fprintf(stderr, "%s: no default game available\n", games);
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return (NULL);
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}
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fclose(fp);
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line[strlen(line) - 1] = '\0';
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strcpy(file, _PATH_GAMES);
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strcat(file, line);
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return (file);
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}
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const char *
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okay_game(s)
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const char *s;
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{
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FILE *fp;
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static char file[256];
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const char *ret = NULL;
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char line[256], games[256];
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strcpy(games, _PATH_GAMES);
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strcat(games, GAMES);
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if ((fp = fopen(games, "r")) == NULL) {
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warn("fopen %s", games);
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return (NULL);
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}
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while (fgets(line, sizeof(line), fp) != NULL) {
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line[strlen(line) - 1] = '\0';
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if (strcmp(s, line) == 0) {
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strcpy(file, _PATH_GAMES);
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strcat(file, line);
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ret = file;
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break;
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}
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}
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fclose(fp);
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if (ret == NULL) {
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test_mode = 1;
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ret = s;
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fprintf(stderr, "%s: %s: game not found\n", games, s);
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fprintf(stderr, "Your score will not be logged.\n");
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sleep(2); /* give the guy time to read it */
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}
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return (ret);
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}
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int
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list_games()
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{
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FILE *fp;
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char line[256], games[256];
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int num_games = 0;
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strcpy(games, _PATH_GAMES);
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strcat(games, GAMES);
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if ((fp = fopen(games, "r")) == NULL) {
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warn("fopen %s", games);
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return (-1);
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}
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puts("available games:");
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while (fgets(line, sizeof(line), fp) != NULL) {
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printf(" %s", line);
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num_games++;
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}
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fclose(fp);
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if (num_games == 0) {
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fprintf(stderr, "%s: no games available\n", games);
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return (-1);
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}
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return (0);
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}
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