robots/score.c

   1 /*      $NetBSD: score.c,v 1.18 2006/03/17 23:11:47 abs 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 #if 0
  35 static char sccsid[] = "@(#)score.c     8.1 (Berkeley) 5/31/93";
  36 #else
  37 __RCSID("$NetBSD: score.c,v 1.18 2006/03/17 23:11:47 abs Exp $");
  38 #endif
  39 #endif /* not lint */
  40
  41 # include       "robots.h"
  42 # include       "pathnames.h"
  43
  44 const char      *Scorefile = _PATH_SCORE;
  45
  46 int     Max_per_uid = MAX_PER_UID;
  47
  48 static SCORE    Top[MAXSCORES];
  49
  50 static u_int32_t        numscores, max_uid;
  51
  52 static void read_score(int);
  53 static void write_score(int);
  54
  55 /*
  56  * read_score:
  57  *      Read the score file in MI format
  58  */
  59 static void
  60 read_score(inf)
  61         int inf;
  62 {
  63         SCORE   *scp;
  64
  65         if (read(inf, &max_uid, sizeof max_uid) == sizeof max_uid) {
  66                 max_uid = ntohl(max_uid);
  67
  68                 read(inf, Top, sizeof Top);
  69                 for (scp = Top; scp < &Top[MAXSCORES]; scp++) {
  70                          scp->s_uid = ntohl(scp->s_uid);
  71                          scp->s_score = ntohl(scp->s_score);
  72                          scp->s_auto = ntohl(scp->s_auto);
  73                          scp->s_level = ntohl(scp->s_level);
  74                 }
  75         }
  76         else {
  77                 for (scp = Top; scp < &Top[MAXSCORES]; scp++)
  78                         scp->s_score = 0;
  79                 max_uid = Max_per_uid;
  80         }
  81 }
  82
  83 /*
  84  * write_score:
  85  *      Write the score file in MI format
  86  */
  87 static void
  88 write_score(inf)
  89         int inf;
  90 {
  91         SCORE   *scp;
  92
  93         lseek(inf, 0L, SEEK_SET);
  94
  95         max_uid = htonl(max_uid);
  96         write(inf, &max_uid, sizeof max_uid);
  97
  98         for (scp = Top; scp < &Top[MAXSCORES]; scp++) {
  99                  scp->s_uid = htonl(scp->s_uid);
 100                  scp->s_score = htonl(scp->s_score);
 101                  scp->s_auto = htonl(scp->s_auto);
 102                  scp->s_level = htonl(scp->s_level);
 103         }
 104
 105         write(inf, Top, sizeof Top);
 106 }
 107
 108
 109 /*
 110  * score:
 111  *      Post the player's score, if reasonable, and then print out the
 112  *      top list.
 113  */
 114 void
 115 score(score_wfd)
 116         int score_wfd;
 117 {
 118         int                     inf = score_wfd;
 119         SCORE                   *scp;
 120         u_int32_t               uid;
 121         bool                    done_show = FALSE;
 122
 123         Newscore = FALSE;
 124         if (inf < 0)
 125                 return;
 126
 127         read_score(inf);
 128
 129         uid = getuid();
 130         if (Top[MAXSCORES-1].s_score <= Score) {
 131                 numscores = 0;
 132                 for (scp = Top; scp < &Top[MAXSCORES]; scp++)
 133                         if ((scp->s_uid == uid && ++numscores == max_uid)) {
 134                                 if (scp->s_score > Score)
 135                                         break;
 136                                 scp->s_score = Score;
 137                                 scp->s_uid = uid;
 138                                 scp->s_auto = Auto_bot;
 139                                 scp->s_level = Level;
 140                                 set_name(scp);
 141                                 Newscore = TRUE;
 142                                 break;
 143                         }
 144                 if (scp == &Top[MAXSCORES]) {
 145                         Top[MAXSCORES-1].s_score = Score;
 146                         Top[MAXSCORES-1].s_uid = uid;
 147                         Top[MAXSCORES-1].s_auto = Auto_bot;
 148                         Top[MAXSCORES-1].s_level = Level;
 149                         set_name(&Top[MAXSCORES-1]);
 150                         Newscore = TRUE;
 151                 }
 152                 if (Newscore)
 153                         qsort(Top, MAXSCORES, sizeof Top[0], cmp_sc);
 154         }
 155
 156         if (!Newscore) {
 157                 Full_clear = FALSE;
 158                 lseek(inf, 0, SEEK_SET);
 159                 return;
 160         }
 161         else
 162                 Full_clear = TRUE;
 163
 164         move(1, 15);
 165         printw("%5.5s %5.5s %-9.9s %-8.8s %5.5s", "Rank", "Score", "User",
 166             " ", "Level");
 167
 168         for (scp = Top; scp < &Top[MAXSCORES]; scp++) {
 169                 if (scp->s_score == 0)
 170                         break;
 171                 move((scp - Top) + 2, 15);
 172                 if (!done_show && scp->s_uid == uid && scp->s_score == Score)
 173                         standout();
 174                 printw("%5ld %5d %-8.8s %-9.9s %5d",
 175                     (long)(scp - Top) + 1, scp->s_score, scp->s_name,
 176                     scp->s_auto ? "(autobot)" : "", scp->s_level);
 177                 if (!done_show && scp->s_uid == uid && scp->s_score == Score) {
 178                         standend();
 179                         done_show = TRUE;
 180                 }
 181         }
 182         Num_scores = scp - Top;
 183         refresh();
 184
 185         if (Newscore) {
 186                 write_score(inf);
 187         }
 188         lseek(inf, 0, SEEK_SET);
 189 }
 190
 191 void
 192 set_name(scp)
 193         SCORE   *scp;
 194 {
 195         PASSWD  *pp;
 196
 197         if ((pp = getpwuid(scp->s_uid)) == NULL)
 198                 strncpy(scp->s_name, "???", MAXNAME);
 199         else
 200                 strncpy(scp->s_name, pp->pw_name, MAXNAME);
 201 }
 202
 203 /*
 204  * cmp_sc:
 205  *      Compare two scores.
 206  */
 207 int
 208 cmp_sc(s1, s2)
 209         const void *s1, *s2;
 210 {
 211         return ((const SCORE *)s2)->s_score - ((const SCORE *)s1)->s_score;
 212 }
 213
 214 /*
 215  * show_score:
 216  *      Show the score list for the '-s' option.
 217  */
 218 void
 219 show_score()
 220 {
 221         SCORE           *scp;
 222         int             inf;
 223
 224         if ((inf = open(Scorefile, O_RDONLY)) < 0) {
 225                 warn("opening `%s'", Scorefile);
 226                 return;
 227         }
 228
 229         read_score(inf);
 230         close(inf);
 231         inf = 1;
 232         printf("%5.5s %5.5s %-9.9s %-8.8s %5.5s\n", "Rank", "Score", "User",
 233             " ", "Level");
 234         for (scp = Top; scp < &Top[MAXSCORES]; scp++)
 235                 if (scp->s_score > 0)
 236                         printf("%5d %5d %-8.8s %-9.9s %5d\n",
 237                             inf++, scp->s_score, scp->s_name,
 238                             scp->s_auto ? "(autobot)" :  "", scp->s_level);
 239 }