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 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 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 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 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