games/adventure/setup.c

   1 /*-
   2  * Copyright (c) 1991, 1993
   3  *      The Regents of the University of California.  All rights reserved.
   4  *
   5  * This code is derived from software contributed to Berkeley by
   6  * Jim Gillogly at The Rand Corporation.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  * 1. Redistributions of source code must retain the above copyright
  12  *    notice, this list of conditions and the following disclaimer.
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  * 3. Neither the name of the University nor the names of its contributors
  17  *    may be used to endorse or promote products derived from this software
  18  *    without specific prior written permission.
  19  *
  20  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  21  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  23  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  24  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  25  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  26  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  27  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  28  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  29  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  30  * SUCH DAMAGE.
  31  *
  32  * @(#) Copyright (c) 1991, 1993 The Regents of the University of California.  All rights reserved.
  33  * @(#)setup.c  8.1 (Berkeley) 5/31/93
  34  * $FreeBSD: src/games/adventure/setup.c,v 1.8.2.1 2001/03/05 11:43:11 kris Exp $
  35  * $DragonFly: src/games/adventure/setup.c,v 1.2 2003/06/17 04:25:22 dillon Exp $
  36  */
  37
  38 /*
  39  * Setup: keep the structure of the original Adventure port, but use an
  40  * internal copy of the data file, serving as a sort of virtual disk.  It's
  41  * lightly encrypted to prevent casual snooping of the executable.
  42  *
  43  * Also do appropriate things to tabs so that bogus editors will do the right
  44  * thing with the data file.
  45  *
  46  */
  47
  48 #define SIG1 " *      Jim Gillogly"
  49 #define SIG2 " *      Sterday, 6 Thrimidge S.R. 1993, 15:24"
  50
  51 #include <stdio.h>
  52 #include <stdlib.h>
  53 #include <err.h>
  54 #include "hdr.h"        /* SEED lives in there; keep them coordinated. */
  55
  56 #define USAGE "Usage: setup file > data.c (file is typically glorkz)"
  57
  58 #define YES 1
  59 #define NO  0
  60
  61 #define LINE 10         /* How many values do we get on a line? */
  62
  63 int
  64 main(int argc, char **argv)
  65 {
  66         FILE *infile;
  67         int c, count, linestart;
  68
  69         if (argc != 2)
  70                 errx(1, USAGE);
  71
  72         if ((infile = fopen(argv[1], "r")) == NULL)
  73                 err(1, "Can't read file %s", argv[1]);
  74         puts("/*\n * data.c: created by setup from the ascii data file.");
  75         puts(SIG1);
  76         puts(SIG2);
  77         puts(" */");
  78         printf("\n\nunsigned char data_file[] =\n{");
  79         srandom(SEED);
  80         count = 0;
  81         linestart = YES;
  82
  83         while ((c = getc(infile)) != EOF) {
  84                 if (linestart && c == ' ') {    /* Convert first spaces to tab */
  85                         if (count++ % LINE == 0)
  86                                 printf("\n\t");
  87                         printf("0x%02lx,", ('\t' ^ random()) & 0xFF);
  88                         while ((c = getc(infile)) == ' ' && c != EOF);
  89                         /* Drop the non-whitespace character through */
  90                         linestart = NO;
  91                 }
  92                 switch (c) {
  93                 case '\t':
  94                         linestart = NO; /* Don't need to convert spaces */
  95                         break;
  96                 case '\n':
  97                         linestart = YES; /* Ready to convert spaces again */
  98                         break;
  99                 }
 100                 if (count++ % LINE == 0)
 101                         printf("\n\t");
 102                 printf("0x%02lx,", (c ^ random()) & 0xFF);
 103         }
 104         puts("\n\t0\n};");
 105         fclose(infile);
 106         exit(0);
 107 }