main.c revision 1.5
1 /* $NetBSD: main.c,v 1.5 1997/10/10 02:07:30 lukem 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 #include <sys/cdefs.h> 49 #ifndef lint 50 __COPYRIGHT("@(#) 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 __RCSID("$NetBSD: main.c,v 1.5 1997/10/10 02:07:30 lukem Exp $"); 59 #endif 60 #endif /* not lint */ 61 62 #include "include.h" 63 #include "pathnames.h" 64 65 66 int 67 main(ac, av) 68 int ac; 69 char *av[]; 70 { 71 int seed; 72 int f_usage = 0, f_list = 0, f_showscore = 0; 73 int f_printpath = 0; 74 char *file = NULL; 75 char *name, *ptr; 76 struct sigaction sa; 77 #ifdef BSD 78 struct itimerval itv; 79 #endif 80 81 start_time = seed = time(0); 82 83 name = *av++; 84 while (*av) { 85 #ifndef SAVEDASH 86 if (**av == '-') 87 ++*av; 88 else 89 break; 90 #endif 91 ptr = *av++; 92 while (*ptr) { 93 switch (*ptr) { 94 case '?': 95 case 'u': 96 f_usage++; 97 break; 98 case 'l': 99 f_list++; 100 break; 101 case 's': 102 case 't': 103 f_showscore++; 104 break; 105 case 'p': 106 f_printpath++; 107 break; 108 case 'r': 109 seed = atoi(*av); 110 av++; 111 break; 112 case 'f': 113 case 'g': 114 file = *av; 115 av++; 116 break; 117 default: 118 warnx("unknown option '%c'\n", *ptr); 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_quit); 166 signal(SIGTERM, log_score_quit); 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(0); 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 int 223 read_file(s) 224 char *s; 225 { 226 extern FILE *yyin; 227 int retval; 228 229 file = s; 230 yyin = fopen(s, "r"); 231 if (yyin == NULL) { 232 perror(s); 233 return (-1); 234 } 235 retval = yyparse(); 236 fclose(yyin); 237 238 if (retval != 0) 239 return (-1); 240 else 241 return (0); 242 } 243 244 char * 245 default_game() 246 { 247 FILE *fp; 248 static char file[256]; 249 char line[256], games[256]; 250 251 strcpy(games, _PATH_GAMES); 252 strcat(games, GAMES); 253 254 if ((fp = fopen(games, "r")) == NULL) { 255 perror(games); 256 return (NULL); 257 } 258 if (fgets(line, sizeof(line), fp) == NULL) { 259 fprintf(stderr, "%s: no default game available\n", games); 260 return (NULL); 261 } 262 fclose(fp); 263 line[strlen(line) - 1] = '\0'; 264 strcpy(file, _PATH_GAMES); 265 strcat(file, line); 266 return (file); 267 } 268 269 char * 270 okay_game(s) 271 char *s; 272 { 273 FILE *fp; 274 static char file[256]; 275 char *ret = NULL, line[256], games[256]; 276 277 strcpy(games, _PATH_GAMES); 278 strcat(games, GAMES); 279 280 if ((fp = fopen(games, "r")) == NULL) { 281 perror(games); 282 return (NULL); 283 } 284 while (fgets(line, sizeof(line), fp) != NULL) { 285 line[strlen(line) - 1] = '\0'; 286 if (strcmp(s, line) == 0) { 287 strcpy(file, _PATH_GAMES); 288 strcat(file, line); 289 ret = file; 290 break; 291 } 292 } 293 fclose(fp); 294 if (ret == NULL) { 295 test_mode = 1; 296 ret = s; 297 fprintf(stderr, "%s: %s: game not found\n", games, s); 298 fprintf(stderr, "Your score will not be logged.\n"); 299 sleep(2); /* give the guy time to read it */ 300 } 301 return (ret); 302 } 303 304 int 305 list_games() 306 { 307 FILE *fp; 308 char line[256], games[256]; 309 int num_games = 0; 310 311 strcpy(games, _PATH_GAMES); 312 strcat(games, GAMES); 313 314 if ((fp = fopen(games, "r")) == NULL) { 315 perror(games); 316 return (-1); 317 } 318 puts("available games:"); 319 while (fgets(line, sizeof(line), fp) != NULL) { 320 printf(" %s", line); 321 num_games++; 322 } 323 fclose(fp); 324 if (num_games == 0) { 325 fprintf(stderr, "%s: no games available\n", games); 326 return (-1); 327 } 328 return (0); 329 } 330
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