1 /*-
2 * Copyright (c) 1980, 1993
3 * The Regents of the University of California. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. Neither the name of the University nor the names of its contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 *
29 * @(#)score.c 8.1 (Berkeley) 5/31/93
30 * $FreeBSD: src/games/robots/score.c,v 1.5 1999/11/30 03:49:20 billf Exp $
31 * $DragonFly: src/games/robots/score.c,v 1.4 2008/08/23 23:23:37 swildner Exp $
32 */
33
34 #include "robots.h"
35 #include <fcntl.h>
36 #include <sys/types.h>
37 #include <pwd.h>
38 #include "pathnames.h"
39
40 typedef struct {
41 int s_uid;
42 int s_score;
43 char s_name[MAXNAME];
44 } SCORE;
45
46 const char *Scorefile = _PATH_SCORE;
47
48 int Max_per_uid = MAX_PER_UID;
49
50 static SCORE Top[MAXSCORES];
51
52 static int cmp_sc(const void *, const void *);
53 static void set_name(SCORE *);
54
55 /*
56 * score:
57 * Post the player's score, if reasonable, and then print out the
58 * top list.
59 */
60 void
score(void)61 score(void)
62 {
63 int inf;
64 SCORE *scp;
65 int uid;
66 bool done_show = false;
67 static int numscores, max_uid;
68
69 Newscore = false;
70 if ((inf = open(Scorefile, O_RDWR)) < 0) {
71 perror(Scorefile);
72 return;
73 }
74
75 if (read(inf, &max_uid, sizeof max_uid) == sizeof max_uid)
76 read(inf, Top, sizeof Top);
77 else {
78 for (scp = Top; scp < &Top[MAXSCORES]; scp++)
79 scp->s_score = -1;
80 max_uid = Max_per_uid;
81 }
82
83 uid = getuid();
84 if (Top[MAXSCORES-1].s_score <= Score) {
85 numscores = 0;
86 for (scp = Top; scp < &Top[MAXSCORES]; scp++)
87 if (scp->s_score < 0 ||
88 (scp->s_uid == uid && ++numscores == max_uid)) {
89 if (scp->s_score > Score)
90 break;
91 scp->s_score = Score;
92 scp->s_uid = uid;
93 set_name(scp);
94 Newscore = true;
95 break;
96 }
97 if (scp == &Top[MAXSCORES]) {
98 Top[MAXSCORES-1].s_score = Score;
99 Top[MAXSCORES-1].s_uid = uid;
100 set_name(&Top[MAXSCORES-1]);
101 Newscore = true;
102 }
103 if (Newscore)
104 qsort(Top, MAXSCORES, sizeof Top[0], cmp_sc);
105 }
106
107 if (!Newscore) {
108 Full_clear = false;
109 close(inf);
110 return;
111 }
112 else
113 Full_clear = true;
114
115 for (scp = Top; scp < &Top[MAXSCORES]; scp++) {
116 if (scp->s_score < 0)
117 break;
118 move((scp - Top) + 1, 15);
119 if (!done_show && scp->s_uid == uid && scp->s_score == Score)
120 standout();
121 printw(" %d\t%d\t%-8.8s ", (scp - Top) + 1, scp->s_score, scp->s_name);
122 if (!done_show && scp->s_uid == uid && scp->s_score == Score) {
123 standend();
124 done_show = true;
125 }
126 }
127 Num_scores = scp - Top;
128 refresh();
129
130 if (Newscore) {
131 lseek(inf, 0L, SEEK_SET);
132 write(inf, &max_uid, sizeof max_uid);
133 write(inf, Top, sizeof Top);
134 }
135 close(inf);
136 }
137
138 static void
set_name(SCORE * scp)139 set_name(SCORE *scp)
140 {
141 struct passwd *pp;
142
143 if ((pp = getpwuid(scp->s_uid)) == NULL)
144 strncpy(scp->s_name, "???", MAXNAME);
145 else
146 strncpy(scp->s_name, pp->pw_name, MAXNAME);
147 }
148
149 /*
150 * cmp_sc:
151 * Compare two scores.
152 */
153 static int
cmp_sc(const void * s1,const void * s2)154 cmp_sc(const void *s1, const void *s2)
155 {
156 return (((const SCORE *)s2)->s_score - ((const SCORE *)s1)->s_score);
157 }
158
159 /*
160 * show_score:
161 * Show the score list for the '-s' option.
162 */
163 void
show_score(void)164 show_score(void)
165 {
166 SCORE *scp;
167 int inf;
168 static int max_score;
169
170 if ((inf = open(Scorefile, O_RDONLY)) < 0) {
171 perror(Scorefile);
172 return;
173 }
174
175 for (scp = Top; scp < &Top[MAXSCORES]; scp++)
176 scp->s_score = -1;
177
178 read(inf, &max_score, sizeof max_score);
179 read(inf, Top, sizeof Top);
180 close(inf);
181 inf = 1;
182 for (scp = Top; scp < &Top[MAXSCORES]; scp++)
183 if (scp->s_score >= 0)
184 printf("%d\t%d\t%.*s\n", inf++, scp->s_score,
185 (int)sizeof(scp->s_name), scp->s_name);
186 }
187