robots/score.c

   1 /*      $NetBSD: score.c,v 1.15 2000/04/27 19:31:23 thorpej 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 1.15 2000/04/27 19:31:23 thorpej 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(score_wfd)
 120         int score_wfd;
 121 {
 122         int                     inf = score_wfd;
 123         SCORE                   *scp;
 124         u_int32_t               uid;
 125         bool                    done_show = FALSE;
 126
 127         Newscore = FALSE;
 128         if (inf < 0)
 129                 return;
 130
 131         read_score(inf);
 132
 133         uid = getuid();
 134         if (Top[MAXSCORES-1].s_score <= Score) {
 135                 numscores = 0;
 136                 for (scp = Top; scp < &Top[MAXSCORES]; scp++)
 137                         if ((scp->s_uid == uid && ++numscores == max_uid)) {
 138                                 if (scp->s_score > Score)
 139                                         break;
 140                                 scp->s_score = Score;
 141                                 scp->s_uid = uid;
 142                                 scp->s_auto = Auto_bot;
 143                                 scp->s_level = Level;
 144                                 set_name(scp);
 145                                 Newscore = TRUE;
 146                                 break;
 147                         }
 148                 if (scp == &Top[MAXSCORES]) {
 149                         Top[MAXSCORES-1].s_score = Score;
 150                         Top[MAXSCORES-1].s_uid = uid;
 151                         Top[MAXSCORES-1].s_auto = Auto_bot;
 152                         Top[MAXSCORES-1].s_level = Level;
 153                         set_name(&Top[MAXSCORES-1]);
 154                         Newscore = TRUE;
 155                 }
 156                 if (Newscore)
 157                         qsort(Top, MAXSCORES, sizeof Top[0], cmp_sc);
 158         }
 159
 160         if (!Newscore) {
 161                 Full_clear = FALSE;
 162                 lseek(inf, 0, SEEK_SET);
 163                 return;
 164         }
 165         else
 166                 Full_clear = TRUE;
 167
 168         move(1, 15);
 169         printw("%5.5s %5.5s %-9.9s %-8.8s %5.5s", "Rank", "Score", "User",
 170             " ", "Level");
 171
 172         for (scp = Top; scp < &Top[MAXSCORES]; scp++) {
 173                 if (scp->s_score == 0)
 174                         break;
 175                 move((scp - Top) + 2, 15);
 176                 if (!done_show && scp->s_uid == uid && scp->s_score == Score)
 177                         standout();
 178                 printw("%5ld %5d %-8.8s %-9.9s %5d",
 179                     (long)(scp - Top) + 1, scp->s_score, scp->s_name,
 180                     scp->s_auto ? "(autobot)" : "", scp->s_level);
 181                 if (!done_show && scp->s_uid == uid && scp->s_score == Score) {
 182                         standend();
 183                         done_show = TRUE;
 184                 }
 185         }
 186         Num_scores = scp - Top;
 187         refresh();
 188
 189         if (Newscore) {
 190                 write_score(inf);
 191         }
 192         lseek(inf, 0, SEEK_SET);
 193 }
 194
 195 void
 196 set_name(scp)
 197         SCORE   *scp;
 198 {
 199         PASSWD  *pp;
 200         static char unknown[] = "???";
 201
 202         if ((pp = getpwuid(scp->s_uid)) == NULL)
 203                 pp->pw_name = unknown;
 204         strncpy(scp->s_name, pp->pw_name, MAXNAME);
 205 }
 206
 207 /*
 208  * cmp_sc:
 209  *      Compare two scores.
 210  */
 211 int
 212 cmp_sc(s1, s2)
 213         const void *s1, *s2;
 214 {
 215         return ((const SCORE *)s2)->s_score - ((const SCORE *)s1)->s_score;
 216 }
 217
 218 /*
 219  * show_score:
 220  *      Show the score list for the '-s' option.
 221  */
 222 void
 223 show_score()
 224 {
 225         SCORE           *scp;
 226         int             inf;
 227
 228         if ((inf = open(Scorefile, O_RDONLY)) < 0) {
 229                 warn("opening `%s'", Scorefile);
 230                 return;
 231         }
 232
 233         read_score(inf);
 234         close(inf);
 235         inf = 1;
 236         printf("%5.5s %5.5s %-9.9s %-8.8s %5.5s\n", "Rank", "Score", "User",
 237             " ", "Level");
 238         for (scp = Top; scp < &Top[MAXSCORES]; scp++)
 239                 if (scp->s_score > 0)
 240                         printf("%5d %5d %-8.8s %-9.9s %5d\n",
 241                             inf++, scp->s_score, scp->s_name,
 242                             scp->s_auto ? "(autobot)" :  "", scp->s_level);
 243 }