main.c revision 1.4
1 /* $NetBSD: main.c,v 1.4 1995/04/27 21:22:25 mycroft Exp $ */ 2 3 /*- 4 * Copyright (c) 1990, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * This code is derived from software contributed to Berkeley by 8 * Ed James. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the University of 21 * California, Berkeley and its contributors. 22 * 4. Neither the name of the University nor the names of its contributors 23 * may be used to endorse or promote products derived from this software 24 * without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 27 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 28 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 29 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 30 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 31 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 32 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 33 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 34 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 35 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 36 * SUCH DAMAGE. 37 */ 38 39 /* 40 * Copyright (c) 1987 by Ed James, UC Berkeley. All rights reserved. 41 * 42 * Copy permission is hereby granted provided that this notice is 43 * retained on all partial or complete copies. 44 * 45 * For more info on this and all of my stuff, mail edjames (at) berkeley.edu. 46 */ 47 48 #ifndef lint 49 static char copyright[] = 50 "@(#) Copyright (c) 1990, 1993\n\ 51 The Regents of the University of California. All rights reserved.\n"; 52 #endif /* not lint */ 53 54 #ifndef lint 55 #if 0 56 static char sccsid[] = "@(#)main.c 8.1 (Berkeley) 5/31/93"; 57 #else 58 static char rcsid[] = "$NetBSD: main.c,v 1.4 1995/04/27 21:22:25 mycroft Exp $"; 59 #endif 60 #endif /* not lint */ 61 62 #include "include.h" 63 #include "pathnames.h" 64 65 main(ac, av) 66 char *av[]; 67 { 68 int seed; 69 int f_usage = 0, f_list = 0, f_showscore = 0; 70 int f_printpath = 0; 71 char *file = NULL; 72 char *name, *ptr; 73 struct sigaction sa; 74 #ifdef BSD 75 struct itimerval itv; 76 #endif 77 extern char *default_game(), *okay_game(); 78 extern void log_score(), quit(), update(); 79 80 start_time = seed = time(0); 81 82 name = *av++; 83 while (*av) { 84 #ifndef SAVEDASH 85 if (**av == '-') 86 *++*av; 87 else 88 break; 89 #endif 90 ptr = *av++; 91 while (*ptr) { 92 switch (*ptr) { 93 case '?': 94 case 'u': 95 f_usage++; 96 break; 97 case 'l': 98 f_list++; 99 break; 100 case 's': 101 case 't': 102 f_showscore++; 103 break; 104 case 'p': 105 f_printpath++; 106 break; 107 case 'r': 108 seed = atoi(*av); 109 av++; 110 break; 111 case 'f': 112 case 'g': 113 file = *av; 114 av++; 115 break; 116 default: 117 fprintf(stderr, "Unknown option '%c'\n", *ptr, 118 name); 119 f_usage++; 120 break; 121 } 122 ptr++; 123 } 124 } 125 srandom(seed); 126 127 if (f_usage) 128 fprintf(stderr, 129 "Usage: %s -[u?lstp] [-[gf] game_name] [-r random seed]\n", 130 name); 131 if (f_showscore) 132 log_score(1); 133 if (f_list) 134 list_games(); 135 if (f_printpath) { 136 char buf[100]; 137 138 strcpy(buf, _PATH_GAMES); 139 buf[strlen(buf) - 1] = '\0'; 140 puts(buf); 141 } 142 143 if (f_usage || f_showscore || f_list || f_printpath) 144 exit(0); 145 146 if (file == NULL) 147 file = default_game(); 148 else 149 file = okay_game(file); 150 151 if (file == NULL || read_file(file) < 0) 152 exit(1); 153 154 init_gr(); 155 setup_screen(sp); 156 157 addplane(); 158 159 signal(SIGINT, quit); 160 signal(SIGQUIT, quit); 161 #ifdef BSD 162 signal(SIGTSTP, SIG_IGN); 163 signal(SIGSTOP, SIG_IGN); 164 #endif 165 signal(SIGHUP, log_score); 166 signal(SIGTERM, log_score); 167 168 tcgetattr(fileno(stdin), &tty_start); 169 tty_new = tty_start; 170 tty_new.c_lflag &= ~(ICANON|ECHO); 171 tty_new.c_cc[VMIN] = 1; 172 tty_new.c_cc[VTIME] = 0; 173 tcsetattr(fileno(stdin), TCSADRAIN, &tty_new); 174 175 sa.sa_handler = update; 176 sigemptyset(&sa.sa_mask); 177 sigaddset(&sa.sa_mask, SIGALRM); 178 sigaddset(&sa.sa_mask, SIGINT); 179 sa.sa_flags = 0; 180 sigaction(SIGALRM, &sa, (struct sigaction *)0); 181 182 #ifdef BSD 183 itv.it_value.tv_sec = 0; 184 itv.it_value.tv_usec = 1; 185 itv.it_interval.tv_sec = sp->update_secs; 186 itv.it_interval.tv_usec = 0; 187 setitimer(ITIMER_REAL, &itv, NULL); 188 #endif 189 #ifdef SYSV 190 alarm(sp->update_secs); 191 #endif 192 193 for (;;) { 194 if (getcommand() != 1) 195 planewin(); 196 else { 197 #ifdef BSD 198 itv.it_value.tv_sec = 0; 199 itv.it_value.tv_usec = 0; 200 setitimer(ITIMER_REAL, &itv, NULL); 201 #endif 202 #ifdef SYSV 203 alarm(0); 204 #endif 205 206 update(); 207 208 #ifdef BSD 209 itv.it_value.tv_sec = sp->update_secs; 210 itv.it_value.tv_usec = 0; 211 itv.it_interval.tv_sec = sp->update_secs; 212 itv.it_interval.tv_usec = 0; 213 setitimer(ITIMER_REAL, &itv, NULL); 214 #endif 215 #ifdef SYSV 216 alarm(sp->update_secs); 217 #endif 218 } 219 } 220 } 221 222 read_file(s) 223 char *s; 224 { 225 extern FILE *yyin; 226 int retval; 227 228 file = s; 229 yyin = fopen(s, "r"); 230 if (yyin == NULL) { 231 perror(s); 232 return (-1); 233 } 234 retval = yyparse(); 235 fclose(yyin); 236 237 if (retval != 0) 238 return (-1); 239 else 240 return (0); 241 } 242 243 char * 244 default_game() 245 { 246 FILE *fp; 247 static char file[256]; 248 char line[256], games[256]; 249 250 strcpy(games, _PATH_GAMES); 251 strcat(games, GAMES); 252 253 if ((fp = fopen(games, "r")) == NULL) { 254 perror(games); 255 return (NULL); 256 } 257 if (fgets(line, sizeof(line), fp) == NULL) { 258 fprintf(stderr, "%s: no default game available\n", games); 259 return (NULL); 260 } 261 fclose(fp); 262 line[strlen(line) - 1] = '\0'; 263 strcpy(file, _PATH_GAMES); 264 strcat(file, line); 265 return (file); 266 } 267 268 char * 269 okay_game(s) 270 char *s; 271 { 272 FILE *fp; 273 static char file[256]; 274 char *ret = NULL, line[256], games[256]; 275 276 strcpy(games, _PATH_GAMES); 277 strcat(games, GAMES); 278 279 if ((fp = fopen(games, "r")) == NULL) { 280 perror(games); 281 return (NULL); 282 } 283 while (fgets(line, sizeof(line), fp) != NULL) { 284 line[strlen(line) - 1] = '\0'; 285 if (strcmp(s, line) == 0) { 286 strcpy(file, _PATH_GAMES); 287 strcat(file, line); 288 ret = file; 289 break; 290 } 291 } 292 fclose(fp); 293 if (ret == NULL) { 294 test_mode = 1; 295 ret = s; 296 fprintf(stderr, "%s: %s: game not found\n", games, s); 297 fprintf(stderr, "Your score will not be logged.\n"); 298 sleep(2); /* give the guy time to read it */ 299 } 300 return (ret); 301 } 302 303 list_games() 304 { 305 FILE *fp; 306 char line[256], games[256]; 307 int num_games = 0; 308 309 strcpy(games, _PATH_GAMES); 310 strcat(games, GAMES); 311 312 if ((fp = fopen(games, "r")) == NULL) { 313 perror(games); 314 return (-1); 315 } 316 puts("available games:"); 317 while (fgets(line, sizeof(line), fp) != NULL) { 318 printf(" %s", line); 319 num_games++; 320 } 321 fclose(fp); 322 if (num_games == 0) { 323 fprintf(stderr, "%s: no games available\n", games); 324 return (-1); 325 } 326 return (0); 327 } 328
Indexes created Tue Sep 30 20:09:53 GMT 2025