main.c revision 1.1
1 /*- 2 * Copyright (c) 1990 The Regents of the University of California. 3 * All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley by 6 * Ed James. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by the University of 19 * California, Berkeley and its contributors. 20 * 4. Neither the name of the University nor the names of its contributors 21 * may be used to endorse or promote products derived from this software 22 * without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 */ 36 37 /* 38 * Copyright (c) 1987 by Ed James, UC Berkeley. All rights reserved. 39 * 40 * Copy permission is hereby granted provided that this notice is 41 * retained on all partial or complete copies. 42 * 43 * For more info on this and all of my stuff, mail edjames (at) berkeley.edu. 44 */ 45 46 #ifndef lint 47 char copyright[] = 48 "@(#) Copyright (c) 1990 The Regents of the University of California.\n\ 49 All rights reserved.\n"; 50 #endif /* not lint */ 51 52 #ifndef lint 53 static char sccsid[] = "@(#)main.c 5.4 (Berkeley) 3/5/91"; 54 #endif /* not lint */ 55 56 #include "include.h" 57 #include "pathnames.h" 58 59 main(ac, av) 60 char *av[]; 61 { 62 int seed; 63 int f_usage = 0, f_list = 0, f_showscore = 0; 64 int f_printpath = 0; 65 char *file = NULL; 66 char *name, *ptr; 67 #ifdef BSD 68 struct itimerval itv; 69 #endif 70 extern char *default_game(), *okay_game(); 71 extern void log_score(), quit(), update(); 72 73 start_time = seed = time(0); 74 75 name = *av++; 76 while (*av) { 77 #ifndef SAVEDASH 78 if (**av == '-') 79 *++*av; 80 else 81 break; 82 #endif 83 ptr = *av++; 84 while (*ptr) { 85 switch (*ptr) { 86 case '?': 87 case 'u': 88 f_usage++; 89 break; 90 case 'l': 91 f_list++; 92 break; 93 case 's': 94 case 't': 95 f_showscore++; 96 break; 97 case 'p': 98 f_printpath++; 99 break; 100 case 'r': 101 seed = atoi(*av); 102 av++; 103 break; 104 case 'f': 105 case 'g': 106 file = *av; 107 av++; 108 break; 109 default: 110 fprintf(stderr, "Unknown option '%c'\n", *ptr, 111 name); 112 f_usage++; 113 break; 114 } 115 ptr++; 116 } 117 } 118 srandom(seed); 119 120 if (f_usage) 121 fprintf(stderr, 122 "Usage: %s -[u?lstp] [-[gf] game_name] [-r random seed]\n", 123 name); 124 if (f_showscore) 125 log_score(1); 126 if (f_list) 127 list_games(); 128 if (f_printpath) { 129 char buf[100]; 130 131 strcpy(buf, _PATH_GAMES); 132 buf[strlen(buf) - 1] = '\0'; 133 puts(buf); 134 } 135 136 if (f_usage || f_showscore || f_list || f_printpath) 137 exit(0); 138 139 if (file == NULL) 140 file = default_game(); 141 else 142 file = okay_game(file); 143 144 if (file == NULL || read_file(file) < 0) 145 exit(1); 146 147 init_gr(); 148 setup_screen(sp); 149 150 addplane(); 151 152 signal(SIGINT, quit); 153 signal(SIGQUIT, quit); 154 #ifdef BSD 155 signal(SIGTSTP, SIG_IGN); 156 signal(SIGSTOP, SIG_IGN); 157 #endif 158 signal(SIGHUP, log_score); 159 signal(SIGTERM, log_score); 160 161 #ifdef BSD 162 ioctl(fileno(stdin), TIOCGETP, &tty_start); 163 bcopy(&tty_start, &tty_new, sizeof(tty_new)); 164 tty_new.sg_flags |= CBREAK; 165 tty_new.sg_flags &= ~ECHO; 166 ioctl(fileno(stdin), TIOCSETP, &tty_new); 167 #endif 168 169 #ifdef SYSV 170 ioctl(fileno(stdin), TCGETA, &tty_start); 171 bcopy(&tty_start, &tty_new, sizeof(tty_new)); 172 tty_new.c_lflag &= ~ICANON; 173 tty_new.c_lflag &= ~ECHO; 174 tty_new.c_cc[VMIN] = 1; 175 tty_new.c_cc[VTIME] = 0; 176 ioctl(fileno(stdin), TCSETAW, &tty_new); 177 #endif 178 179 signal(SIGALRM, update); 180 181 #ifdef BSD 182 itv.it_value.tv_sec = 0; 183 itv.it_value.tv_usec = 1; 184 itv.it_interval.tv_sec = sp->update_secs; 185 itv.it_interval.tv_usec = 0; 186 setitimer(ITIMER_REAL, &itv, NULL); 187 #endif 188 #ifdef SYSV 189 alarm(sp->update_secs); 190 #endif 191 192 for (;;) { 193 if (getcommand() != 1) 194 planewin(); 195 else { 196 #ifdef BSD 197 itv.it_value.tv_sec = 0; 198 itv.it_value.tv_usec = 0; 199 setitimer(ITIMER_REAL, &itv, NULL); 200 #endif 201 #ifdef SYSV 202 alarm(0); 203 #endif 204 205 update(); 206 207 #ifdef BSD 208 itv.it_value.tv_sec = sp->update_secs; 209 itv.it_value.tv_usec = 0; 210 itv.it_interval.tv_sec = sp->update_secs; 211 itv.it_interval.tv_usec = 0; 212 setitimer(ITIMER_REAL, &itv, NULL); 213 #endif 214 #ifdef SYSV 215 alarm(sp->update_secs); 216 #endif 217 } 218 } 219 } 220 221 read_file(s) 222 char *s; 223 { 224 extern FILE *yyin; 225 int retval; 226 227 file = s; 228 yyin = fopen(s, "r"); 229 if (yyin == NULL) { 230 perror(s); 231 return (-1); 232 } 233 retval = yyparse(); 234 fclose(yyin); 235 236 if (retval != 0) 237 return (-1); 238 else 239 return (0); 240 } 241 242 char * 243 default_game() 244 { 245 FILE *fp; 246 static char file[256]; 247 char line[256], games[256]; 248 249 strcpy(games, _PATH_GAMES); 250 strcat(games, GAMES); 251 252 if ((fp = fopen(games, "r")) == NULL) { 253 perror(games); 254 return (NULL); 255 } 256 if (fgets(line, sizeof(line), fp) == NULL) { 257 fprintf(stderr, "%s: no default game available\n", games); 258 return (NULL); 259 } 260 fclose(fp); 261 line[strlen(line) - 1] = '\0'; 262 strcpy(file, _PATH_GAMES); 263 strcat(file, line); 264 return (file); 265 } 266 267 char * 268 okay_game(s) 269 char *s; 270 { 271 FILE *fp; 272 static char file[256]; 273 char *ret = NULL, line[256], games[256]; 274 275 strcpy(games, _PATH_GAMES); 276 strcat(games, GAMES); 277 278 if ((fp = fopen(games, "r")) == NULL) { 279 perror(games); 280 return (NULL); 281 } 282 while (fgets(line, sizeof(line), fp) != NULL) { 283 line[strlen(line) - 1] = '\0'; 284 if (strcmp(s, line) == 0) { 285 strcpy(file, _PATH_GAMES); 286 strcat(file, line); 287 ret = file; 288 break; 289 } 290 } 291 fclose(fp); 292 if (ret == NULL) { 293 test_mode = 1; 294 ret = s; 295 fprintf(stderr, "%s: %s: game not found\n", games, s); 296 fprintf(stderr, "Your score will not be logged.\n"); 297 sleep(2); /* give the guy time to read it */ 298 } 299 return (ret); 300 } 301 302 list_games() 303 { 304 FILE *fp; 305 char line[256], games[256]; 306 int num_games = 0; 307 308 strcpy(games, _PATH_GAMES); 309 strcat(games, GAMES); 310 311 if ((fp = fopen(games, "r")) == NULL) { 312 perror(games); 313 return (-1); 314 } 315 puts("available games:"); 316 while (fgets(line, sizeof(line), fp) != NULL) { 317 printf(" %s", line); 318 num_games++; 319 } 320 fclose(fp); 321 if (num_games == 0) { 322 fprintf(stderr, "%s: no games available\n", games); 323 return (-1); 324 } 325 return (0); 326 } 327
Indexes created Tue Sep 30 20:09:53 GMT 2025