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 * @(#) Copyright (c) 1980, 1993 The Regents of the University of California. All rights reserved.
30 * @(#)snscore.c 8.1 (Berkeley) 7/19/93
31 * $FreeBSD: src/games/snake/snscore/snscore.c,v 1.5 1999/11/30 03:49:42 billf Exp $
32 * $DragonFly: src/games/snake/snscore/snscore.c,v 1.4 2006/09/03 23:47:56 pavalos Exp $
33 */
34
35 #include <sys/types.h>
36 #include <err.h>
37 #include <pwd.h>
38 #include <stdio.h>
39 #include <stdlib.h>
40 #include <string.h>
41 #include <unistd.h>
42 #include "pathnames.h"
43
44 const char *recfile = _PATH_RAWSCORES;
45 #define MAXPLAYERS 256
46
47 struct player {
48 short uids;
49 short scores;
50 char *name;
51 };
52
53 struct player players[MAXPLAYERS], temp;
54
55 int
main(int argc __unused,char * argv[]__unused)56 main(int argc __unused, char *argv[] __unused)
57 {
58 short uid, score;
59 FILE *fd;
60 int noplayers;
61 int i, j, notsorted;
62 short whoallbest, allbest;
63 const char *q;
64 struct passwd *p;
65
66 /* Revoke setgid privileges */
67 setgid(getgid());
68
69 fd = fopen(recfile, "r");
70 if (fd == NULL)
71 err(1, "opening `%s'", recfile);
72 printf("Snake players scores to date\n");
73 if (fread(&whoallbest, sizeof(short), 1, fd) == 0) {
74 printf("No scores recorded yet!\n");
75 exit(0);
76 }
77 fread(&allbest, sizeof(short), 1, fd);
78 noplayers = 0;
79 for (uid = 2; ;uid++) {
80 if(fread(&score, sizeof(short), 1, fd) == 0)
81 break;
82 if (score > 0) {
83 if (noplayers >= MAXPLAYERS) {
84 printf("too many players\n");
85 exit(2);
86 }
87 players[noplayers].uids = uid;
88 players[noplayers].scores = score;
89 p = getpwuid(uid);
90 if (p == NULL)
91 continue;
92 q = p -> pw_name;
93 players[noplayers].name = strdup(q);
94 if (players[noplayers].name == NULL)
95 err(1, NULL);
96 noplayers++;
97 }
98 }
99
100 /* bubble sort scores */
101 for (notsorted = 1; notsorted; ) {
102 notsorted = 0;
103 for (i = 0; i < noplayers - 1; i++)
104 if (players[i].scores < players[i + 1].scores) {
105 temp = players[i];
106 players[i] = players[i + 1];
107 players[i + 1] = temp;
108 notsorted++;
109 }
110 }
111
112 j = 1;
113 for (i = 0; i < noplayers; i++) {
114 printf("%d:\t$%d\t%s\n", j, players[i].scores, players[i].name);
115 if (players[i].scores > players[i + 1].scores)
116 j = i + 2;
117 }
118 exit(0);
119 }
120