games/canfield/cfscores/cfscores.c

   1 /*      $NetBSD: cfscores.c,v 1.20 2010/01/01 06:37:16 dholland Exp $   */
   2
   3 /*
   4  * Copyright (c) 1983, 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) 1983, 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[] = "@(#)cfscores.c  8.1 (Berkeley) 5/31/93";
  41 #else
  42 __RCSID("$NetBSD: cfscores.c,v 1.20 2010/01/01 06:37:16 dholland Exp $");
  43 #endif
  44 #endif /* not lint */
  45
  46 #include <sys/types.h>
  47 #include <err.h>
  48 #include <fcntl.h>
  49 #include <pwd.h>
  50 #include <stdio.h>
  51 #include <stdlib.h>
  52 #include <string.h>
  53 #include <unistd.h>
  54 #include "betinfo.h"
  55 #include "pathnames.h"
  56
  57 static int dbfd;
  58
  59 static void printuser(const struct passwd *, int);
  60
  61 int
  62 main(int argc, char *argv[])
  63 {
  64         struct passwd *pw;
  65         uid_t uid;
  66
  67         /* Revoke setgid privileges */
  68         setgid(getgid());
  69
  70         if (argc > 2) {
  71                 fprintf(stderr, "Usage: %s -a | %s [user]\n",
  72                         getprogname(), getprogname());
  73                 exit(1);
  74         }
  75         dbfd = open(_PATH_SCORE, O_RDONLY);
  76         if (dbfd < 0)
  77                 err(2, "open %s", _PATH_SCORE);
  78         setpwent();
  79         if (argc == 1) {
  80                 uid = getuid();
  81                 pw = getpwuid(uid);
  82                 if (pw == NULL) {
  83                         errx(2, "You are not listed in the password file?!?");
  84                 }
  85                 printuser(pw, 1);
  86                 exit(0);
  87         }
  88         if (strcmp(argv[1], "-a") == 0) {
  89                 while ((pw = getpwent()) != NULL)
  90                         printuser(pw, 0);
  91                 exit(0);
  92         }
  93         pw = getpwnam(argv[1]);
  94         if (pw == NULL) {
  95                 errx(3, "User %s unknown", argv[1]);
  96         }
  97         printuser(pw, 1);
  98         exit(0);
  99 }
 100
 101 /*
 102  * print out info for specified password entry
 103  */
 104 static void
 105 printuser(const struct passwd *pw, int printfail)
 106 {
 107         struct betinfo total;
 108         off_t pos;
 109         int i;
 110
 111         pos = pw->pw_uid * (off_t)sizeof(struct betinfo);
 112         /* test pos, not pw_uid; uid_t can be unsigned, which makes gcc warn */
 113         if (pos < 0) {
 114                 warnx("Bad uid %d", (int)pw->pw_uid);
 115                 return;
 116         }
 117         i = lseek(dbfd, pos, SEEK_SET);
 118         if (i < 0)
 119                 warn("lseek %s", _PATH_SCORE);
 120         i = read(dbfd, &total, sizeof(total));
 121         if (i < 0)
 122                 warn("read %s", _PATH_SCORE);
 123         if (i == 0 || total.hand == 0) {
 124                 if (printfail)
 125                         printf("%s has never played canfield.\n", pw->pw_name);
 126                 return;
 127         }
 128         printf("*----------------------*\n");
 129         if (total.worth >= 0)
 130                 printf("* Winnings for %-8s*\n", pw->pw_name);
 131         else
 132                 printf("* Losses for %-10s*\n", pw->pw_name);
 133         printf("*======================*\n");
 134         printf("|Costs           Total |\n");
 135         printf("| Hands       %8ld |\n", total.hand);
 136         printf("| Inspections %8ld |\n", total.inspection);
 137         printf("| Games       %8ld |\n", total.game);
 138         printf("| Runs        %8ld |\n", total.runs);
 139         printf("| Information %8ld |\n", total.information);
 140         printf("| Think time  %8ld |\n", total.thinktime);
 141         printf("|Total Costs  %8ld |\n", total.wins - total.worth);
 142         printf("|Winnings     %8ld |\n", total.wins);
 143         printf("|Net Worth    %8ld |\n", total.worth);
 144         printf("*----------------------*\n\n");
 145 }