1 /*- 2 * Copyright (c) 1990, 1993 3 * The Regents of the University of California. 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 * @(#)log.c 8.1 (Berkeley) 5/31/93 37 * $FreeBSD: src/games/atc/log.c,v 1.7 1999/11/30 03:48:20 billf Exp $ 38 * $DragonFly: src/games/atc/log.c,v 1.2 2003/06/17 04:25:22 dillon Exp $ 39 */ 40 41 /* 42 * Copyright (c) 1987 by Ed James, UC Berkeley. All rights reserved. 43 * 44 * Copy permission is hereby granted provided that this notice is 45 * retained on all partial or complete copies. 46 * 47 * For more info on this and all of my stuff, mail edjames@berkeley.edu. 48 */ 49 50 #include <string.h> 51 #include "include.h" 52 #include "pathnames.h" 53 54 #ifdef SYSV 55 #include <sys/utsname.h> 56 #endif 57 58 static FILE *score_fp; 59 60 int 61 compar(va, vb) 62 const void *va, *vb; 63 { 64 const SCORE *a, *b; 65 66 a = (const SCORE *)va; 67 b = (const SCORE *)vb; 68 69 if (b->planes == a->planes) 70 return (b->time - a->time); 71 else 72 return (b->planes - a->planes); 73 } 74 75 #define SECAMIN 60 76 #define MINAHOUR 60 77 #define HOURADAY 24 78 #define SECAHOUR (SECAMIN * MINAHOUR) 79 #define SECADAY (SECAHOUR * HOURADAY) 80 #define DAY(t) ((t) / SECADAY) 81 #define HOUR(t) (((t) % SECADAY) / SECAHOUR) 82 #define MIN(t) (((t) % SECAHOUR) / SECAMIN) 83 #define SEC(t) ((t) % SECAMIN) 84 85 const char * 86 timestr(t) 87 { 88 static char s[80]; 89 90 if (DAY(t) > 0) 91 (void)sprintf(s, "%dd+%02dhrs", DAY(t), HOUR(t)); 92 else if (HOUR(t) > 0) 93 (void)sprintf(s, "%d:%02d:%02d", HOUR(t), MIN(t), SEC(t)); 94 else if (MIN(t) > 0) 95 (void)sprintf(s, "%d:%02d", MIN(t), SEC(t)); 96 else if (SEC(t) > 0) 97 (void)sprintf(s, ":%02d", SEC(t)); 98 else 99 *s = '\0'; 100 101 return (s); 102 } 103 104 void 105 open_score_file() 106 { 107 mode_t old_mask; 108 int score_fd; 109 int flags; 110 111 old_mask = umask(0); 112 score_fd = open(_PATH_SCORE, O_CREAT|O_RDWR, 0664); 113 umask(old_mask); 114 if (score_fd < 0) { 115 warn("open %s", _PATH_SCORE); 116 return; 117 } 118 /* Set the close-on-exec flag. If this fails for any reason, quit 119 * rather than leave the score file open to tampering. */ 120 flags = fcntl(score_fd, F_GETFD); 121 if (flags < 0) 122 err(1, "fcntl F_GETFD"); 123 flags |= FD_CLOEXEC; 124 if (fcntl(score_fd, F_SETFD, flags) == -1) 125 err(1, "fcntl F_SETFD"); 126 /* 127 * This is done to take advantage of stdio, while still 128 * allowing a O_CREAT during the open(2) of the log file. 129 */ 130 score_fp = fdopen(score_fd, "r+"); 131 if (score_fp == NULL) { 132 warn("fdopen %s", _PATH_SCORE); 133 return; 134 } 135 } 136 137 int 138 log_score(list_em) 139 int list_em; 140 { 141 int i, num_scores = 0, good, changed = 0, found = 0; 142 struct passwd *pw; 143 char *cp; 144 SCORE score[100], thisscore; 145 #ifdef SYSV 146 struct utsname name; 147 #endif 148 149 if (score_fp == NULL) { 150 warnx("no score file available"); 151 return (-1); 152 } 153 154 #ifdef BSD 155 if (flock(fileno(score_fp), LOCK_EX) < 0) 156 #endif 157 #ifdef SYSV 158 while (lockf(fileno(score_fp), F_LOCK, 1) < 0) 159 #endif 160 { 161 warn("flock %s", _PATH_SCORE); 162 return (-1); 163 } 164 for (;;) { 165 good = fscanf(score_fp, SCORE_SCANF_FMT, 166 score[num_scores].name, 167 score[num_scores].host, 168 score[num_scores].game, 169 &score[num_scores].planes, 170 &score[num_scores].time, 171 &score[num_scores].real_time); 172 if (good != 6 || ++num_scores >= NUM_SCORES) 173 break; 174 } 175 if (!test_mode && !list_em) { 176 if ((pw = (struct passwd *) getpwuid(getuid())) == NULL) { 177 fprintf(stderr, 178 "getpwuid failed for uid %d. Who are you?\n", 179 (int)getuid()); 180 return (-1); 181 } 182 strcpy(thisscore.name, pw->pw_name); 183 #ifdef BSD 184 if (gethostname(thisscore.host, sizeof (thisscore.host)) < 0) { 185 perror("gethostname"); 186 return (-1); 187 } 188 #endif 189 #ifdef SYSV 190 uname(&name); 191 strcpy(thisscore.host, name.nodename); 192 #endif 193 194 cp = rindex(file, '/'); 195 if (cp == NULL) { 196 fprintf(stderr, "log: where's the '/' in %s?\n", file); 197 return (-1); 198 } 199 cp++; 200 strcpy(thisscore.game, cp); 201 202 thisscore.time = clck; 203 thisscore.planes = safe_planes; 204 thisscore.real_time = time(0) - start_time; 205 206 for (i = 0; i < num_scores; i++) { 207 if (strcmp(thisscore.name, score[i].name) == 0 && 208 strcmp(thisscore.host, score[i].host) == 0 && 209 strcmp(thisscore.game, score[i].game) == 0) { 210 if (thisscore.time > score[i].time) { 211 score[i].time = thisscore.time; 212 score[i].planes = thisscore.planes; 213 score[i].real_time = 214 thisscore.real_time; 215 changed++; 216 } 217 found++; 218 break; 219 } 220 } 221 if (!found) { 222 for (i = 0; i < num_scores; i++) { 223 if (thisscore.time > score[i].time) { 224 if (num_scores < NUM_SCORES) 225 num_scores++; 226 bcopy(&score[i], 227 &score[num_scores - 1], 228 sizeof (score[i])); 229 bcopy(&thisscore, &score[i], 230 sizeof (score[i])); 231 changed++; 232 break; 233 } 234 } 235 } 236 if (!found && !changed && num_scores < NUM_SCORES) { 237 bcopy(&thisscore, &score[num_scores], 238 sizeof (score[num_scores])); 239 num_scores++; 240 changed++; 241 } 242 243 if (changed) { 244 if (found) 245 puts("You beat your previous score!"); 246 else 247 puts("You made the top players list!"); 248 qsort(score, num_scores, sizeof (*score), compar); 249 rewind(score_fp); 250 for (i = 0; i < num_scores; i++) 251 fprintf(score_fp, "%s %s %s %d %d %d\n", 252 score[i].name, score[i].host, 253 score[i].game, score[i].planes, 254 score[i].time, score[i].real_time); 255 fflush(score_fp); 256 if (ferror(score_fp)) 257 warn("error writing %s", _PATH_SCORE); 258 /* It is just possible that updating an entry could 259 * have reduced the length of the file, so we 260 * truncate it. The lseek is required for stream/fd 261 * synchronisation by POSIX.1. */ 262 lseek(fileno(score_fp), 0, SEEK_END); 263 ftruncate(fileno(score_fp), ftell(score_fp)); 264 } else { 265 if (found) 266 puts("You didn't beat your previous score."); 267 else 268 puts("You didn't make the top players list."); 269 } 270 putchar('\n'); 271 } 272 #ifdef BSD 273 flock(fileno(score_fp), LOCK_UN); 274 #endif 275 #ifdef SYSV 276 /* lock will evaporate upon close */ 277 #endif 278 fclose(score_fp); 279 printf("%2s: %-8s %-8s %-18s %4s %9s %4s\n", "#", "name", "host", 280 "game", "time", "real time", "planes safe"); 281 puts("-------------------------------------------------------------------------------"); 282 for (i = 0; i < num_scores; i++) { 283 cp = index(score[i].host, '.'); 284 if (cp != NULL) 285 *cp = '\0'; 286 printf("%2d: %-8s %-8s %-18s %4d %9s %4d\n", i + 1, 287 score[i].name, score[i].host, score[i].game, 288 score[i].time, timestr(score[i].real_time), 289 score[i].planes); 290 } 291 putchar('\n'); 292 return (0); 293 } 294