+/*
+ * Copyright (c) 1987 by Ed James, UC Berkeley. All rights reserved.
+ *
+ * Copy permission is hereby granted provided that this notice is
+ * retained on all partial or complete copies.
+ *
+ * For more info on this and all of my stuff, mail edjames@berkeley.edu.
+ */
+
+#include "include.h"
+
+main(ac, av)
+ char *av[];
+{
+ int seed;
+ int f_usage = 0, f_list = 0, f_showscore = 0;
+ int f_printpath = 0;
+ char *file = NULL;
+ char *name, *ptr;
+#ifdef BSD
+ struct itimerval itv;
+#endif
+ extern int update(), quit(), log_score();
+ extern char *default_game(), *okay_game();
+
+ start_time = seed = time(0);
+
+ name = *av++;
+ while (*av) {
+#ifndef SAVEDASH
+ if (**av == '-')
+ *++*av;
+ else
+ break;
+#endif
+ ptr = *av++;
+ while (*ptr) {
+ switch (*ptr) {
+ case '?':
+ case 'u':
+ f_usage++;
+ break;
+ case 'l':
+ f_list++;
+ break;
+ case 's':
+ case 't':
+ f_showscore++;
+ break;
+ case 'p':
+ f_printpath++;
+ break;
+ case 'r':
+ seed = atoi(*av);
+ av++;
+ break;
+ case 'f':
+ case 'g':
+ file = *av;
+ av++;
+ break;
+ default:
+ fprintf(stderr, "Unknown option '%c'\n", *ptr,
+ name);
+ f_usage++;
+ break;
+ }
+ ptr++;
+ }
+ }
+ srandom(seed);
+
+ if (f_usage)
+ fprintf(stderr,
+ "Usage: %s -[u?lstp] [-[gf] game_name] [-r random seed]\n",
+ name);
+ if (f_showscore)
+ log_score(1);
+ if (f_list)
+ list_games();
+ if (f_printpath) {
+ char buf[100];
+
+ strcpy(buf, SPECIAL_DIR);
+ buf[strlen(buf) - 1] = '\0';
+ puts(buf);
+ }
+
+ if (f_usage || f_showscore || f_list || f_printpath)
+ exit(0);
+
+ if (file == NULL)
+ file = default_game();
+ else
+ file = okay_game(file);
+
+ if (file == NULL || read_file(file) < 0)
+ exit(1);
+
+ init_gr();
+ setup_screen(sp);
+
+ addplane();
+
+ signal(SIGINT, quit);
+ signal(SIGQUIT, quit);
+#ifdef BSD
+ signal(SIGTSTP, SIG_IGN);
+ signal(SIGSTOP, SIG_IGN);
+#endif
+ signal(SIGHUP, log_score);
+ signal(SIGTERM, log_score);
+
+#ifdef BSD
+ ioctl(fileno(stdin), TIOCGETP, &tty_start);
+ bcopy(&tty_start, &tty_new, sizeof(tty_new));
+ tty_new.sg_flags |= CBREAK;
+ tty_new.sg_flags &= ~ECHO;
+ ioctl(fileno(stdin), TIOCSETP, &tty_new);
+#endif
+
+#ifdef SYSV
+ ioctl(fileno(stdin), TCGETA, &tty_start);
+ bcopy(&tty_start, &tty_new, sizeof(tty_new));
+ tty_new.c_lflag &= ~ICANON;
+ tty_new.c_lflag &= ~ECHO;
+ tty_new.c_cc[VMIN] = 1;
+ tty_new.c_cc[VTIME] = 0;
+ ioctl(fileno(stdin), TCSETAW, &tty_new);
+#endif
+
+ signal(SIGALRM, update);
+
+#ifdef BSD
+ itv.it_value.tv_sec = 0;
+ itv.it_value.tv_usec = 1;
+ itv.it_interval.tv_sec = sp->update_secs;
+ itv.it_interval.tv_usec = 0;
+ setitimer(ITIMER_REAL, &itv, NULL);
+#endif
+#ifdef SYSV
+ alarm(sp->update_secs);
+#endif
+
+ for (;;) {
+ if (getcommand() != 1)
+ planewin();
+ else {
+#ifdef BSD
+ itv.it_value.tv_sec = 0;
+ itv.it_value.tv_usec = 0;
+ setitimer(ITIMER_REAL, &itv, NULL);
+#endif
+#ifdef SYSV
+ alarm(0);
+#endif
+
+ update();
+
+#ifdef BSD
+ itv.it_value.tv_sec = sp->update_secs;
+ itv.it_value.tv_usec = 0;
+ itv.it_interval.tv_sec = sp->update_secs;
+ itv.it_interval.tv_usec = 0;
+ setitimer(ITIMER_REAL, &itv, NULL);
+#endif
+#ifdef SYSV
+ alarm(sp->update_secs);
+#endif
+ }
+ }
+}
+
+read_file(s)
+ char *s;
+{
+ extern FILE *yyin;
+ int retval;
+
+ file = s;
+ yyin = fopen(s, "r");
+ if (yyin == NULL) {
+ perror(s);
+ return (-1);
+ }
+ retval = yyparse();
+ fclose(yyin);
+
+ if (retval != 0)
+ return (-1);
+ else
+ return (0);
+}
+
+char *
+default_game()
+{
+ FILE *fp;
+ static char file[256];
+ char line[256], games[256];
+
+ strcpy(games, SPECIAL_DIR);
+ strcat(games, GAMES);
+
+ if ((fp = fopen(games, "r")) == NULL) {
+ perror(games);
+ return (NULL);
+ }
+ if (fgets(line, sizeof(line), fp) == NULL) {
+ fprintf(stderr, "%s: no default game available\n", games);
+ return (NULL);
+ }
+ fclose(fp);
+ line[strlen(line) - 1] = '\0';
+ strcpy(file, SPECIAL_DIR);
+ strcat(file, line);
+ return (file);
+}
+
+char *
+okay_game(s)
+ char *s;
+{
+ FILE *fp;
+ static char file[256];
+ char *ret = NULL, line[256], games[256];
+
+ strcpy(games, SPECIAL_DIR);
+ strcat(games, GAMES);
+
+ if ((fp = fopen(games, "r")) == NULL) {
+ perror(games);
+ return (NULL);
+ }
+ while (fgets(line, sizeof(line), fp) != NULL) {
+ line[strlen(line) - 1] = '\0';
+ if (strcmp(s, line) == 0) {
+ strcpy(file, SPECIAL_DIR);
+ strcat(file, line);
+ ret = file;
+ break;
+ }
+ }
+ fclose(fp);
+ if (ret == NULL) {
+ test_mode = 1;
+ ret = s;
+ fprintf(stderr, "%s: %s: game not found\n", games, s);
+ fprintf(stderr, "Your score will not be logged.\n");
+ sleep(2); /* give the guy time to read it */
+ }
+ return (ret);
+}
+
+list_games()
+{
+ FILE *fp;
+ char line[256], games[256];
+ int num_games = 0;
+
+ strcpy(games, SPECIAL_DIR);
+ strcat(games, GAMES);
+
+ if ((fp = fopen(games, "r")) == NULL) {
+ perror(games);
+ return (-1);
+ }
+ puts("available games:");
+ while (fgets(line, sizeof(line), fp) != NULL) {
+ printf(" %s", line);
+ num_games++;
+ }
+ fclose(fp);
+ if (num_games == 0) {
+ fprintf(stderr, "%s: no games available\n", games);
+ return (-1);
+ }
+ return (0);
+}
projects / unix-history / commitdiff