Assorted minor cleanups, no functional change:
[bsdgames-darwin.git] / robots / score.c
1 /* $NetBSD: score.c,v 1.21 2009/07/20 06:39:06 dholland 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 1.21 2009/07/20 06:39:06 dholland 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 /*
61 * read_score:
62 * Read the score file in MI format
63 */
64 static void
65 read_score(int inf)
66 {
67 SCORE *scp;
68
69 if (read(inf, &max_uid, sizeof max_uid) == sizeof max_uid) {
70 max_uid = ntohl(max_uid);
71
72 read(inf, Top, sizeof Top);
73 for (scp = Top; scp < &Top[MAXSCORES]; scp++) {
74 scp->s_uid = ntohl(scp->s_uid);
75 scp->s_score = ntohl(scp->s_score);
76 scp->s_auto = ntohl(scp->s_auto);
77 scp->s_level = ntohl(scp->s_level);
78 }
79 }
80 else {
81 for (scp = Top; scp < &Top[MAXSCORES]; scp++)
82 scp->s_score = 0;
83 max_uid = Max_per_uid;
84 }
85 }
86
87 /*
88 * write_score:
89 * Write the score file in MI format
90 */
91 static void
92 write_score(int inf)
93 {
94 SCORE *scp;
95
96 lseek(inf, 0L, SEEK_SET);
97
98 max_uid = htonl(max_uid);
99 write(inf, &max_uid, sizeof max_uid);
100
101 for (scp = Top; scp < &Top[MAXSCORES]; scp++) {
102 scp->s_uid = htonl(scp->s_uid);
103 scp->s_score = htonl(scp->s_score);
104 scp->s_auto = htonl(scp->s_auto);
105 scp->s_level = htonl(scp->s_level);
106 }
107
108 write(inf, Top, sizeof Top);
109 }
110
111
112 /*
113 * score:
114 * Post the player's score, if reasonable, and then print out the
115 * top list.
116 */
117 void
118 score(int score_wfd)
119 {
120 int inf = score_wfd;
121 SCORE *scp;
122 uint32_t uid;
123 bool done_show = false;
124
125 Newscore = false;
126 if (inf < 0)
127 return;
128
129 read_score(inf);
130
131 uid = getuid();
132 if (Top[MAXSCORES-1].s_score <= Score) {
133 numscores = 0;
134 for (scp = Top; scp < &Top[MAXSCORES]; scp++)
135 if ((scp->s_uid == uid && ++numscores == max_uid)) {
136 if (scp->s_score > Score)
137 break;
138 scp->s_score = Score;
139 scp->s_uid = uid;
140 scp->s_auto = Auto_bot;
141 scp->s_level = Level;
142 set_name(scp);
143 Newscore = true;
144 break;
145 }
146 if (scp == &Top[MAXSCORES]) {
147 Top[MAXSCORES-1].s_score = Score;
148 Top[MAXSCORES-1].s_uid = uid;
149 Top[MAXSCORES-1].s_auto = Auto_bot;
150 Top[MAXSCORES-1].s_level = Level;
151 set_name(&Top[MAXSCORES-1]);
152 Newscore = true;
153 }
154 if (Newscore)
155 qsort(Top, MAXSCORES, sizeof Top[0], cmp_sc);
156 }
157
158 if (!Newscore) {
159 Full_clear = false;
160 lseek(inf, 0, SEEK_SET);
161 return;
162 }
163 else
164 Full_clear = true;
165
166 move(1, 15);
167 printw("%5.5s %5.5s %-9.9s %-8.8s %5.5s", "Rank", "Score", "User",
168 " ", "Level");
169
170 for (scp = Top; scp < &Top[MAXSCORES]; scp++) {
171 if (scp->s_score == 0)
172 break;
173 move((scp - Top) + 2, 15);
174 if (!done_show && scp->s_uid == uid && scp->s_score == Score)
175 standout();
176 printw("%5ld %5d %-8.8s %-9.9s %5d",
177 (long)(scp - Top) + 1, scp->s_score, scp->s_name,
178 scp->s_auto ? "(autobot)" : "", scp->s_level);
179 if (!done_show && scp->s_uid == uid && scp->s_score == Score) {
180 standend();
181 done_show = true;
182 }
183 }
184 Num_scores = scp - Top;
185 refresh();
186
187 if (Newscore) {
188 write_score(inf);
189 }
190 lseek(inf, 0, SEEK_SET);
191 }
192
193 void
194 set_name(SCORE *scp)
195 {
196 struct passwd *pp;
197
198 if ((pp = getpwuid(scp->s_uid)) == NULL)
199 strncpy(scp->s_name, "???", MAXNAME);
200 else
201 strncpy(scp->s_name, pp->pw_name, MAXNAME);
202 }
203
204 /*
205 * cmp_sc:
206 * Compare two scores.
207 */
208 int
209 cmp_sc(const void *s1, const void *s2)
210 {
211 return ((const SCORE *)s2)->s_score - ((const SCORE *)s1)->s_score;
212 }
213
214 /*
215 * show_score:
216 * Show the score list for the '-s' option.
217 */
218 void
219 show_score(void)
220 {
221 SCORE *scp;
222 int inf;
223
224 if ((inf = open(Scorefile, O_RDONLY)) < 0) {
225 warn("opening `%s'", Scorefile);
226 return;
227 }
228
229 read_score(inf);
230 close(inf);
231 inf = 1;
232 printf("%5.5s %5.5s %-9.9s %-8.8s %5.5s\n", "Rank", "Score", "User",
233 " ", "Level");
234 for (scp = Top; scp < &Top[MAXSCORES]; scp++)
235 if (scp->s_score > 0)
236 printf("%5d %5d %-8.8s %-9.9s %5d\n",
237 inf++, scp->s_score, scp->s_name,
238 scp->s_auto ? "(autobot)" : "", scp->s_level);
239 }