main.c revision 1.3
1 /* $NetBSD: main.c,v 1.3 1995/03/21 15:04:24 cgd 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 1.3 1995/03/21 15:04:24 cgd 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 #ifdef BSD 74 struct itimerval itv; 75 #endif 76 extern char *default_game(), *okay_game(); 77 extern void log_score(), quit(), update(); 78 79 start_time = seed = time(0); 80 81 name = *av++; 82 while (*av) { 83 #ifndef SAVEDASH 84 if (**av == '-') 85 *++*av; 86 else 87 break; 88 #endif 89 ptr = *av++; 90 while (*ptr) { 91 switch (*ptr) { 92 case '?': 93 case 'u': 94 f_usage++; 95 break; 96 case 'l': 97 f_list++; 98 break; 99 case 's': 100 case 't': 101 f_showscore++; 102 break; 103 case 'p': 104 f_printpath++; 105 break; 106 case 'r': 107 seed = atoi(*av); 108 av++; 109 break; 110 case 'f': 111 case 'g': 112 file = *av; 113 av++; 114 break; 115 default: 116 fprintf(stderr, "Unknown option '%c'\n", *ptr, 117 name); 118 f_usage++; 119 break; 120 } 121 ptr++; 122 } 123 } 124 srandom(seed); 125 126 if (f_usage) 127 fprintf(stderr, 128 "Usage: %s -[u?lstp] [-[gf] game_name] [-r random seed]\n", 129 name); 130 if (f_showscore) 131 log_score(1); 132 if (f_list) 133 list_games(); 134 if (f_printpath) { 135 char buf[100]; 136 137 strcpy(buf, _PATH_GAMES); 138 buf[strlen(buf) - 1] = '\0'; 139 puts(buf); 140 } 141 142 if (f_usage || f_showscore || f_list || f_printpath) 143 exit(0); 144 145 if (file == NULL) 146 file = default_game(); 147 else 148 file = okay_game(file); 149 150 if (file == NULL || read_file(file) < 0) 151 exit(1); 152 153 init_gr(); 154 setup_screen(sp); 155 156 addplane(); 157 158 signal(SIGINT, quit); 159 signal(SIGQUIT, quit); 160 #ifdef BSD 161 signal(SIGTSTP, SIG_IGN); 162 signal(SIGSTOP, SIG_IGN); 163 #endif 164 signal(SIGHUP, log_score); 165 signal(SIGTERM, log_score); 166 167 #ifdef BSD 168 ioctl(fileno(stdin), TIOCGETP, &tty_start); 169 bcopy(&tty_start, &tty_new, sizeof(tty_new)); 170 tty_new.sg_flags |= CBREAK; 171 tty_new.sg_flags &= ~ECHO; 172 ioctl(fileno(stdin), TIOCSETP, &tty_new); 173 #endif 174 175 #ifdef SYSV 176 ioctl(fileno(stdin), TCGETA, &tty_start); 177 bcopy(&tty_start, &tty_new, sizeof(tty_new)); 178 tty_new.c_lflag &= ~ICANON; 179 tty_new.c_lflag &= ~ECHO; 180 tty_new.c_cc[VMIN] = 1; 181 tty_new.c_cc[VTIME] = 0; 182 ioctl(fileno(stdin), TCSETAW, &tty_new); 183 #endif 184 185 signal(SIGALRM, update); 186 187 #ifdef BSD 188 itv.it_value.tv_sec = 0; 189 itv.it_value.tv_usec = 1; 190 itv.it_interval.tv_sec = sp->update_secs; 191 itv.it_interval.tv_usec = 0; 192 setitimer(ITIMER_REAL, &itv, NULL); 193 #endif 194 #ifdef SYSV 195 alarm(sp->update_secs); 196 #endif 197 198 for (;;) { 199 if (getcommand() != 1) 200 planewin(); 201 else { 202 #ifdef BSD 203 itv.it_value.tv_sec = 0; 204 itv.it_value.tv_usec = 0; 205 setitimer(ITIMER_REAL, &itv, NULL); 206 #endif 207 #ifdef SYSV 208 alarm(0); 209 #endif 210 211 update(); 212 213 #ifdef BSD 214 itv.it_value.tv_sec = sp->update_secs; 215 itv.it_value.tv_usec = 0; 216 itv.it_interval.tv_sec = sp->update_secs; 217 itv.it_interval.tv_usec = 0; 218 setitimer(ITIMER_REAL, &itv, NULL); 219 #endif 220 #ifdef SYSV 221 alarm(sp->update_secs); 222 #endif 223 } 224 } 225 } 226 227 read_file(s) 228 char *s; 229 { 230 extern FILE *yyin; 231 int retval; 232 233 file = s; 234 yyin = fopen(s, "r"); 235 if (yyin == NULL) { 236 perror(s); 237 return (-1); 238 } 239 retval = yyparse(); 240 fclose(yyin); 241 242 if (retval != 0) 243 return (-1); 244 else 245 return (0); 246 } 247 248 char * 249 default_game() 250 { 251 FILE *fp; 252 static char file[256]; 253 char line[256], games[256]; 254 255 strcpy(games, _PATH_GAMES); 256 strcat(games, GAMES); 257 258 if ((fp = fopen(games, "r")) == NULL) { 259 perror(games); 260 return (NULL); 261 } 262 if (fgets(line, sizeof(line), fp) == NULL) { 263 fprintf(stderr, "%s: no default game available\n", games); 264 return (NULL); 265 } 266 fclose(fp); 267 line[strlen(line) - 1] = '\0'; 268 strcpy(file, _PATH_GAMES); 269 strcat(file, line); 270 return (file); 271 } 272 273 char * 274 okay_game(s) 275 char *s; 276 { 277 FILE *fp; 278 static char file[256]; 279 char *ret = NULL, line[256], games[256]; 280 281 strcpy(games, _PATH_GAMES); 282 strcat(games, GAMES); 283 284 if ((fp = fopen(games, "r")) == NULL) { 285 perror(games); 286 return (NULL); 287 } 288 while (fgets(line, sizeof(line), fp) != NULL) { 289 line[strlen(line) - 1] = '\0'; 290 if (strcmp(s, line) == 0) { 291 strcpy(file, _PATH_GAMES); 292 strcat(file, line); 293 ret = file; 294 break; 295 } 296 } 297 fclose(fp); 298 if (ret == NULL) { 299 test_mode = 1; 300 ret = s; 301 fprintf(stderr, "%s: %s: game not found\n", games, s); 302 fprintf(stderr, "Your score will not be logged.\n"); 303 sleep(2); /* give the guy time to read it */ 304 } 305 return (ret); 306 } 307 308 list_games() 309 { 310 FILE *fp; 311 char line[256], games[256]; 312 int num_games = 0; 313 314 strcpy(games, _PATH_GAMES); 315 strcat(games, GAMES); 316 317 if ((fp = fopen(games, "r")) == NULL) { 318 perror(games); 319 return (-1); 320 } 321 puts("available games:"); 322 while (fgets(line, sizeof(line), fp) != NULL) { 323 printf(" %s", line); 324 num_games++; 325 } 326 fclose(fp); 327 if (num_games == 0) { 328 fprintf(stderr, "%s: no games available\n", games); 329 return (-1); 330 } 331 return (0); 332 } 333
Indexes created Tue Sep 30 20:09:53 GMT 2025