mandoc(1): Update to 1.9.19.
[dragonfly.git] / games / atc / log.c
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. Neither the name of the University nor the names of its contributors
17  *    may be used to endorse or promote products derived from this software
18  *    without specific prior written permission.
19  *
20  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30  * SUCH DAMAGE.
31  *
32  * @(#)log.c    8.1 (Berkeley) 5/31/93
33  * $FreeBSD: src/games/atc/log.c,v 1.7 1999/11/30 03:48:20 billf Exp $
34  * $DragonFly: src/games/atc/log.c,v 1.3 2006/08/08 15:03:02 pavalos Exp $
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@berkeley.edu.
44  */
45
46 #include <sys/stat.h>
47 #include <err.h>
48
49 #include "include.h"
50 #include "pathnames.h"
51
52 #include <sys/utsname.h>
53
54 static FILE *score_fp;
55
56 static int      compar(const void *, const void *);
57 static const char       *timestr(int);
58
59
60 static int
61 compar(const void *va, const void *vb)
62 {
63         const SCORE     *a, *b;
64
65         a = (const SCORE *)va;
66         b = (const SCORE *)vb;
67         if (b->planes == a->planes)
68                 return (b->time - a->time);
69         else
70                 return (b->planes - a->planes);
71 }
72
73 #define SECAMIN         60
74 #define MINAHOUR        60
75 #define HOURADAY        24
76 #define SECAHOUR        (SECAMIN * MINAHOUR)
77 #define SECADAY         (SECAHOUR * HOURADAY)
78 #define DAY(t)          ((t) / SECADAY)
79 #define HOUR(t)         (((t) % SECADAY) / SECAHOUR)
80 #define MIN(t)          (((t) % SECAHOUR) / SECAMIN)
81 #define SEC(t)          ((t) % SECAMIN)
82
83 static const char *
84 timestr(int t)
85 {
86         static char     s[80];
87
88         if (DAY(t) > 0)
89                 (void)sprintf(s, "%dd+%02dhrs", DAY(t), HOUR(t));
90         else if (HOUR(t) > 0)
91                 (void)sprintf(s, "%d:%02d:%02d", HOUR(t), MIN(t), SEC(t));
92         else if (MIN(t) > 0)
93                 (void)sprintf(s, "%d:%02d", MIN(t), SEC(t));
94         else if (SEC(t) > 0)
95                 (void)sprintf(s, ":%02d", SEC(t));
96         else
97                 *s = '\0';
98
99         return (s);
100 }
101
102 void
103 open_score_file(void)
104 {
105         mode_t old_mask;
106         int score_fd;
107         int flags;
108
109         old_mask = umask(0);
110         score_fd = open(_PATH_SCORE, O_CREAT|O_RDWR, 0664);
111         umask(old_mask);
112         if (score_fd < 0) {
113                 warn("open %s", _PATH_SCORE);
114                 return;
115         }
116         /* Set the close-on-exec flag.  If this fails for any reason, quit
117          * rather than leave the score file open to tampering.  */
118         flags = fcntl(score_fd, F_GETFD);
119         if (flags < 0)
120                 err(1, "fcntl F_GETFD");
121         flags |= FD_CLOEXEC;
122         if (fcntl(score_fd, F_SETFD, flags) == -1)
123                 err(1, "fcntl F_SETFD");
124         /*
125          * This is done to take advantage of stdio, while still
126          * allowing a O_CREAT during the open(2) of the log file.
127          */
128         score_fp = fdopen(score_fd, "r+");
129         if (score_fp == NULL) {
130                 warn("fdopen %s", _PATH_SCORE);
131                 return;
132         }
133 }
134
135 int
136 log_score(int list_em)
137 {
138         int             i, num_scores = 0, good, changed = 0, found = 0;
139         struct passwd   *pw;
140         char            *cp;
141         SCORE           score[100], thisscore;
142         struct utsname  xname;
143
144         if (score_fp == NULL) {
145                 warnx("no score file available");
146                 return (-1);
147         }
148
149         if (flock(fileno(score_fp), LOCK_EX) < 0)
150         {
151                 warn("flock %s", _PATH_SCORE);
152                 return (-1);
153         }
154         for (;;) {
155                 good = fscanf(score_fp, SCORE_SCANF_FMT,
156                         score[num_scores].name,
157                         score[num_scores].host,
158                         score[num_scores].game,
159                         &score[num_scores].planes,
160                         &score[num_scores].time,
161                         &score[num_scores].real_time);
162                 if (good != 6 || ++num_scores >= NUM_SCORES)
163                         break;
164         }
165         if (!test_mode && !list_em) {
166                 if ((pw = (struct passwd *) getpwuid(getuid())) == NULL) {
167                         fprintf(stderr,
168                                 "getpwuid failed for uid %d.  Who are you?\n",
169                                 (int)getuid());
170                         return (-1);
171                 }
172                 strcpy(thisscore.name, pw->pw_name);
173
174                 uname(&xname);
175                 strcpy(thisscore.host, xname.nodename);
176
177                 cp = rindex(filename, '/');
178                 if (cp == NULL) {
179                         fprintf(stderr, "log: where's the '/' in %s?\n", filename);
180                         return (-1);
181                 }
182                 cp++;
183                 strcpy(thisscore.game, cp);
184
185                 thisscore.time = clck;
186                 thisscore.planes = safe_planes;
187                 thisscore.real_time = time(0) - start_time;
188
189                 for (i = 0; i < num_scores; i++) {
190                         if (strcmp(thisscore.name, score[i].name) == 0 &&
191                             strcmp(thisscore.host, score[i].host) == 0 &&
192                             strcmp(thisscore.game, score[i].game) == 0) {
193                                 if (thisscore.time > score[i].time) {
194                                         score[i].time = thisscore.time;
195                                         score[i].planes = thisscore.planes;
196                                         score[i].real_time =
197                                                 thisscore.real_time;
198                                         changed++;
199                                 }
200                                 found++;
201                                 break;
202                         }
203                 }
204                 if (!found) {
205                         for (i = 0; i < num_scores; i++) {
206                                 if (thisscore.time > score[i].time) {
207                                         if (num_scores < NUM_SCORES)
208                                                 num_scores++;
209                                         bcopy(&score[i],
210                                                 &score[num_scores - 1],
211                                                 sizeof (score[i]));
212                                         bcopy(&thisscore, &score[i],
213                                                 sizeof (score[i]));
214                                         changed++;
215                                         break;
216                                 }
217                         }
218                 }
219                 if (!found && !changed && num_scores < NUM_SCORES) {
220                         bcopy(&thisscore, &score[num_scores],
221                                 sizeof (score[num_scores]));
222                         num_scores++;
223                         changed++;
224                 }
225
226                 if (changed) {
227                         if (found)
228                                 puts("You beat your previous score!");
229                         else
230                                 puts("You made the top players list!");
231                         qsort(score, num_scores, sizeof (*score), compar);
232                         rewind(score_fp);
233                         for (i = 0; i < num_scores; i++)
234                                 fprintf(score_fp, "%s %s %s %d %d %d\n",
235                                         score[i].name, score[i].host,
236                                         score[i].game, score[i].planes,
237                                         score[i].time, score[i].real_time);
238                 fflush(score_fp);
239                 if (ferror(score_fp))
240                         warn("error writing %s", _PATH_SCORE);
241                 /* It is just possible that updating an entry could
242                  * have reduced the length of the file, so we
243                  * truncate it.  The lseek is required for stream/fd
244                  * synchronisation by POSIX.1.  */
245                 lseek(fileno(score_fp), 0, SEEK_END);
246                 ftruncate(fileno(score_fp), ftell(score_fp));
247                 } else {
248                         if (found)
249                                 puts("You didn't beat your previous score.");
250                         else
251                                 puts("You didn't make the top players list.");
252                 }
253                 putchar('\n');
254         }
255         flock(fileno(score_fp), LOCK_UN);
256         fclose(score_fp);
257         printf("%2s:  %-8s  %-8s  %-18s  %4s  %9s  %4s\n", "#", "name", "host",
258                 "game", "time", "real time", "planes safe");
259         puts("-------------------------------------------------------------------------------");
260         for (i = 0; i < num_scores; i++) {
261                 cp = index(score[i].host, '.');
262                 if (cp != NULL)
263                         *cp = '\0';
264                 printf("%2d:  %-8s  %-8s  %-18s  %4d  %9s  %4d\n", i + 1,
265                         score[i].name, score[i].host, score[i].game,
266                         score[i].time, timestr(score[i].real_time),
267                         score[i].planes);
268         }
269         putchar('\n');
270         return (0);
271 }