robots/score.c

   1 /*      $NetBSD: score.c,v 1.9 1999/09/08 21:57:20 jsm 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. All advertising materials mentioning features or use of this software
  16  *    must display the following acknowledgement:
  17  *      This product includes software developed by the University of
  18  *      California, Berkeley and its contributors.
  19  * 4. Neither the name of the University nor the names of its contributors
  20  *    may be used to endorse or promote products derived from this software
  21  *    without specific prior written permission.
  22  *
  23  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  26  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  33  * SUCH DAMAGE.
  34  */
  35
  36 #include <sys/cdefs.h>
  37 #ifndef lint
  38 #if 0
  39 static char sccsid[] = "@(#)score.c     8.1 (Berkeley) 5/31/93";
  40 #else
  41 __RCSID("$NetBSD: score.c,v 1.9 1999/09/08 21:57:20 jsm Exp $");
  42 #endif
  43 #endif /* not lint */
  44
  45 # include       "robots.h"
  46 # include       "pathnames.h"
  47
  48 const char      *Scorefile = _PATH_SCORE;
  49
  50 int     Max_per_uid = MAX_PER_UID;
  51
  52 static SCORE    Top[MAXSCORES];
  53
  54 static u_int32_t        numscores, max_uid;
  55
  56 static void read_score __P((int));
  57 static void write_score __P((int));
  58
  59 /*
  60  * read_score:
  61  *      Read the score file in MI format
  62  */
  63 static void
  64 read_score(inf)
  65         int inf;
  66 {
  67         SCORE   *scp;
  68
  69         if (read(inf, &max_uid, sizeof max_uid) == sizeof max_uid) {
  70                 max_uid = ntohl(max_uid);
  71
  72                 read(inf, Top, sizeof Top);
  73                 for (scp = Top; scp < &Top[MAXSCORES]; scp++) {
  74                          scp->s_uid = ntohl(scp->s_uid);
  75                          scp->s_score = ntohl(scp->s_score);
  76                          scp->s_auto = ntohl(scp->s_auto);
  77                          scp->s_level = ntohl(scp->s_level);
  78                 }
  79         }
  80         else {
  81                 for (scp = Top; scp < &Top[MAXSCORES]; scp++)
  82                         scp->s_score = 0;
  83                 max_uid = Max_per_uid;
  84         }
  85 }
  86
  87 /*
  88  * write_score:
  89  *      Write the score file in MI format
  90  */
  91 static void
  92 write_score(inf)
  93         int inf;
  94 {
  95         SCORE   *scp;
  96
  97         lseek(inf, 0L, SEEK_SET);
  98
  99         max_uid = htonl(max_uid);
 100         write(inf, &max_uid, sizeof max_uid);
 101
 102         for (scp = Top; scp < &Top[MAXSCORES]; scp++) {
 103                  scp->s_uid = htonl(scp->s_uid);
 104                  scp->s_score = htonl(scp->s_score);
 105                  scp->s_auto = htonl(scp->s_auto);
 106                  scp->s_level = htonl(scp->s_level);
 107         }
 108
 109         write(inf, Top, sizeof Top);
 110 }
 111
 112
 113 /*
 114  * score:
 115  *      Post the player's score, if reasonable, and then print out the
 116  *      top list.
 117  */
 118 void
 119 score()
 120 {
 121         int                     inf;
 122         SCORE                   *scp;
 123         int                     uid;
 124         bool                    done_show = FALSE;
 125
 126         Newscore = FALSE;
 127         if ((inf = open(Scorefile, O_RDWR)) < 0) {
 128                 warn("opening `%s'", Scorefile);
 129                 return;
 130         }
 131
 132         read_score(inf);
 133
 134         uid = getuid();
 135         if (Top[MAXSCORES-1].s_score <= Score) {
 136                 numscores = 0;
 137                 for (scp = Top; scp < &Top[MAXSCORES]; scp++)
 138                         if (scp->s_score < 0 ||
 139                             (scp->s_uid == uid && ++numscores == max_uid)) {
 140                                 if (scp->s_score > Score)
 141                                         break;
 142                                 scp->s_score = Score;
 143                                 scp->s_uid = uid;
 144                                 scp->s_auto = Auto_bot;
 145                                 scp->s_level = Level;
 146                                 set_name(scp);
 147                                 Newscore = TRUE;
 148                                 break;
 149                         }
 150                 if (scp == &Top[MAXSCORES]) {
 151                         Top[MAXSCORES-1].s_score = Score;
 152                         Top[MAXSCORES-1].s_uid = uid;
 153                         Top[MAXSCORES-1].s_auto = Auto_bot;
 154                         Top[MAXSCORES-1].s_level = Level;
 155                         set_name(&Top[MAXSCORES-1]);
 156                         Newscore = TRUE;
 157                 }
 158                 if (Newscore)
 159                         qsort(Top, MAXSCORES, sizeof Top[0], cmp_sc);
 160         }
 161
 162         if (!Newscore) {
 163                 Full_clear = FALSE;
 164                 close(inf);
 165                 return;
 166         }
 167         else
 168                 Full_clear = TRUE;
 169
 170         move(1, 15);
 171         printw("%5.5s %5.5s %-9.9s %-8.8s %5.5s", "Rank", "Score", "User",
 172             " ", "Level");
 173
 174         for (scp = Top; scp < &Top[MAXSCORES]; scp++) {
 175                 if (scp->s_score == 0)
 176                         break;
 177                 move((scp - Top) + 2, 15);
 178                 if (!done_show && scp->s_uid == uid && scp->s_score == Score)
 179                         standout();
 180                 printw("%5.5d %5.5d %-8.8s %-9.9s %5.5d",
 181                     (scp - Top) + 1, scp->s_score, scp->s_name,
 182                     Auto_bot ? "(autobot)" : "", scp->s_level);
 183                 if (!done_show && scp->s_uid == uid && scp->s_score == Score) {
 184                         standend();
 185                         done_show = TRUE;
 186                 }
 187         }
 188         Num_scores = scp - Top;
 189         refresh();
 190
 191         if (Newscore) {
 192                 write_score(inf);
 193         }
 194         close(inf);
 195 }
 196
 197 void
 198 set_name(scp)
 199         SCORE   *scp;
 200 {
 201         PASSWD  *pp;
 202         static char unknown[] = "???";
 203
 204         if ((pp = getpwuid(scp->s_uid)) == NULL)
 205                 pp->pw_name = unknown;
 206         strncpy(scp->s_name, pp->pw_name, MAXNAME);
 207 }
 208
 209 /*
 210  * cmp_sc:
 211  *      Compare two scores.
 212  */
 213 int
 214 cmp_sc(s1, s2)
 215         const void *s1, *s2;
 216 {
 217         return ((const SCORE *)s2)->s_score - ((const SCORE *)s1)->s_score;
 218 }
 219
 220 /*
 221  * show_score:
 222  *      Show the score list for the '-s' option.
 223  */
 224 void
 225 show_score()
 226 {
 227         SCORE           *scp;
 228         int             inf;
 229
 230         if ((inf = open(Scorefile, O_RDONLY)) < 0) {
 231                 warn("opening `%s'", Scorefile);
 232                 return;
 233         }
 234
 235         read_score(inf);
 236         close(inf);
 237         inf = 1;
 238         printf("%5.5s %5.5s %-9.9s %-8.8s %5.5s\n", "Rank", "Score", "User",
 239             " ", "Level");
 240         for (scp = Top; scp < &Top[MAXSCORES]; scp++)
 241                 if (scp->s_score > 0)
 242                         printf("%5.5d %5.5d %-8.8s %-9.9s %5.5d\n",
 243                             inf++, scp->s_score, scp->s_name,
 244                             scp->s_auto ? "(autobot)" :  "", scp->s_level);
 245 }