1 /* $NetBSD: score.c,v 1.24 2021/04/13 01:50:46 mrg Exp $ */
2
3 /*
4 * Copyright (c) 1980, 1993
5 * The Regents of the University of California. All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. Neither the name of the University nor the names of its contributors
16 * may be used to endorse or promote products derived from this software
17 * without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 */
31
32 #include <sys/cdefs.h>
33 #ifndef lint
34 #if 0
35 static char sccsid[] = "@(#)score.c 8.1 (Berkeley) 5/31/93";
36 #else
37 __RCSID("$NetBSD: score.c,v 1.24 2021/04/13 01:50:46 mrg Exp $");
38 #endif
39 #endif /* not lint */
40
41 #include <curses.h>
42 #include <err.h>
43 #include <fcntl.h>
44 #include <pwd.h>
45 #include <stdio.h>
46 #include <stdlib.h>
47 #include <string.h>
48 #include <unistd.h>
49 #include "robots.h"
50 #include "pathnames.h"
51
52 const char *Scorefile = _PATH_SCORE;
53
54 int Max_per_uid = MAX_PER_UID;
55
56 static SCORE Top[MAXSCORES];
57
58 static uint32_t numscores, max_uid;
59
60 static int cmp_sc(const void *, const void *);
61 static void set_name(SCORE *);
62
63 /*
64 * read_score:
65 * Read the score file in MI format
66 */
67 static void
read_score(int inf)68 read_score(int inf)
69 {
70 SCORE *scp;
71
72 if (read(inf, &max_uid, sizeof max_uid) == sizeof max_uid &&
73 read(inf, Top, sizeof Top) == sizeof Top) {
74 max_uid = ntohl(max_uid);
75 for (scp = Top; scp < &Top[MAXSCORES]; scp++) {
76 scp->s_uid = ntohl(scp->s_uid);
77 scp->s_score = ntohl(scp->s_score);
78 scp->s_auto = ntohl(scp->s_auto);
79 scp->s_level = ntohl(scp->s_level);
80 }
81 }
82 else {
83 for (scp = Top; scp < &Top[MAXSCORES]; scp++)
84 scp->s_score = 0;
85 max_uid = Max_per_uid;
86 }
87 }
88
89 /*
90 * write_score:
91 * Write the score file in MI format
92 */
93 static void
write_score(int inf)94 write_score(int inf)
95 {
96 SCORE *scp;
97
98 lseek(inf, 0L, SEEK_SET);
99
100 max_uid = htonl(max_uid);
101 write(inf, &max_uid, sizeof max_uid);
102
103 for (scp = Top; scp < &Top[MAXSCORES]; scp++) {
104 scp->s_uid = htonl(scp->s_uid);
105 scp->s_score = htonl(scp->s_score);
106 scp->s_auto = htonl(scp->s_auto);
107 scp->s_level = htonl(scp->s_level);
108 }
109
110 write(inf, Top, sizeof Top);
111 }
112
113
114 /*
115 * score:
116 * Post the player's score, if reasonable, and then print out the
117 * top list.
118 */
119 void
score(int score_wfd)120 score(int score_wfd)
121 {
122 int inf = score_wfd;
123 SCORE *scp;
124 uint32_t uid;
125 bool done_show = false;
126
127 Newscore = false;
128 if (inf < 0)
129 return;
130
131 read_score(inf);
132
133 uid = getuid();
134 if (Top[MAXSCORES-1].s_score <= Score) {
135 numscores = 0;
136 for (scp = Top; scp < &Top[MAXSCORES]; scp++)
137 if ((scp->s_uid == uid && ++numscores == max_uid)) {
138 if (scp->s_score > Score)
139 break;
140 scp->s_score = Score;
141 scp->s_uid = uid;
142 scp->s_auto = Auto_bot;
143 scp->s_level = Level;
144 set_name(scp);
145 Newscore = true;
146 break;
147 }
148 if (scp == &Top[MAXSCORES]) {
149 Top[MAXSCORES-1].s_score = Score;
150 Top[MAXSCORES-1].s_uid = uid;
151 Top[MAXSCORES-1].s_auto = Auto_bot;
152 Top[MAXSCORES-1].s_level = Level;
153 set_name(&Top[MAXSCORES-1]);
154 Newscore = true;
155 }
156 if (Newscore)
157 qsort(Top, MAXSCORES, sizeof Top[0], cmp_sc);
158 }
159
160 if (!Newscore) {
161 Full_clear = false;
162 lseek(inf, 0, SEEK_SET);
163 return;
164 }
165 else
166 Full_clear = true;
167
168 move(1, 15);
169 printw("%5.5s %5.5s %-9.9s %-8.8s %5.5s", "Rank", "Score", "User",
170 " ", "Level");
171
172 for (scp = Top; scp < &Top[MAXSCORES]; scp++) {
173 if (scp->s_score == 0)
174 break;
175 move((scp - Top) + 2, 15);
176 if (!done_show && scp->s_uid == uid && scp->s_score == Score)
177 standout();
178 printw("%5ld %5d %-8.8s %-9.9s %5d",
179 (long)(scp - Top) + 1, scp->s_score, scp->s_name,
180 scp->s_auto ? "(autobot)" : "", scp->s_level);
181 if (!done_show && scp->s_uid == uid && scp->s_score == Score) {
182 standend();
183 done_show = true;
184 }
185 }
186 Num_scores = scp - Top;
187 refresh();
188
189 if (Newscore) {
190 write_score(inf);
191 }
192 lseek(inf, 0, SEEK_SET);
193 }
194
195 static void
set_name(SCORE * scp)196 set_name(SCORE *scp)
197 {
198 struct passwd *pp;
199
200 if ((pp = getpwuid(scp->s_uid)) == NULL)
201 strncpy(scp->s_name, "???", MAXNAME - 1);
202 else
203 strncpy(scp->s_name, pp->pw_name, MAXNAME - 1);
204 scp->s_name[MAXNAME - 1] = '\0';
205 }
206
207 /*
208 * cmp_sc:
209 * Compare two scores.
210 */
211 static int
cmp_sc(const void * s1,const void * s2)212 cmp_sc(const void *s1, const void *s2)
213 {
214 return ((const SCORE *)s2)->s_score - ((const SCORE *)s1)->s_score;
215 }
216
217 /*
218 * show_score:
219 * Show the score list for the '-s' option.
220 */
221 void
show_score(void)222 show_score(void)
223 {
224 SCORE *scp;
225 int inf;
226
227 if ((inf = open(Scorefile, O_RDONLY)) < 0) {
228 warn("opening `%s'", Scorefile);
229 return;
230 }
231
232 read_score(inf);
233 close(inf);
234 inf = 1;
235 printf("%5.5s %5.5s %-9.9s %-8.8s %5.5s\n", "Rank", "Score", "User",
236 " ", "Level");
237 for (scp = Top; scp < &Top[MAXSCORES]; scp++)
238 if (scp->s_score > 0)
239 printf("%5d %5d %-8.8s %-9.9s %5d\n",
240 inf++, scp->s_score, scp->s_name,
241 scp->s_auto ? "(autobot)" : "", scp->s_level);
242 }
243