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 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