1 /* $NetBSD: snscore.c,v 1.19 2012/06/19 05:46:09 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 __COPYRIGHT("@(#) Copyright (c) 1980, 1993\ 35 The Regents of the University of California. All rights reserved."); 36 #endif /* not lint */ 37 38 #ifndef lint 39 #if 0 40 static char sccsid[] = "@(#)snscore.c 8.1 (Berkeley) 7/19/93"; 41 #else 42 __RCSID("$NetBSD: snscore.c,v 1.19 2012/06/19 05:46:09 dholland Exp $"); 43 #endif 44 #endif /* not lint */ 45 46 #include <sys/types.h> 47 #include <err.h> 48 #include <pwd.h> 49 #include <stdio.h> 50 #include <stdlib.h> 51 #include <string.h> 52 #include <unistd.h> 53 #include "pathnames.h" 54 55 static const char *recfile = _PATH_RAWSCORES; 56 #define MAXPLAYERS 256 57 58 struct player { 59 short uids; 60 short scores; 61 char *name; 62 }; 63 64 static struct player players[MAXPLAYERS], temp; 65 66 int main(void); 67 68 int 69 main(void) 70 { 71 short uid, score; 72 FILE *fd; 73 int noplayers; 74 int i, j, notsorted; 75 short whoallbest, allbest; 76 const char *q; 77 struct passwd *p; 78 79 /* Revoke setgid privileges */ 80 setgid(getgid()); 81 82 fd = fopen(recfile, "r"); 83 if (fd == NULL) 84 err(1, "opening `%s'", recfile); 85 printf("Snake players scores to date\n"); 86 if (fread(&whoallbest, sizeof(short), 1, fd) == 0) { 87 printf("No scores recorded yet!\n"); 88 exit(0); 89 } 90 fread(&allbest, sizeof(short), 1, fd); 91 noplayers = 0; 92 for (uid = 2; ;uid++) { 93 if(fread(&score, sizeof(short), 1, fd) == 0) 94 break; 95 if (score > 0) { 96 if (noplayers >= MAXPLAYERS) { 97 printf("too many players\n"); 98 exit(2); 99 } 100 players[noplayers].uids = uid; 101 players[noplayers].scores = score; 102 p = getpwuid(uid); 103 if (p == NULL) 104 continue; 105 q = p -> pw_name; 106 players[noplayers].name = strdup(q); 107 if (players[noplayers].name == NULL) 108 err(1, NULL); 109 noplayers++; 110 } 111 } 112 113 /* bubble sort scores */ 114 for (notsorted = 1; notsorted; ) { 115 notsorted = 0; 116 for (i = 0; i < noplayers - 1; i++) 117 if (players[i].scores < players[i + 1].scores) { 118 temp = players[i]; 119 players[i] = players[i + 1]; 120 players[i + 1] = temp; 121 notsorted++; 122 } 123 } 124 125 j = 1; 126 for (i = 0; i < noplayers; i++) { 127 printf("%d:\t$%d\t%s\n", j, players[i].scores, players[i].name); 128 if (players[i].scores > players[i + 1].scores) 129 j = i + 2; 130 } 131 exit(0); 132 } 133