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. All advertising materials mentioning features or use of this software
  17  *    must display the following acknowledgement:
  18  *      This product includes software developed by the University of
  19  *      California, Berkeley and its contributors.
  20  * 4. Neither the name of the University nor the names of its contributors
  21  *    may be used to endorse or promote products derived from this software
  22  *    without specific prior written permission.
  23  *
  24  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  25  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  26  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  27  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  28  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  29  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  30  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  31  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  32  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  33  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  34  * SUCH DAMAGE.
  35  *
  36  * @(#) Copyright (c) 1991, 1993 The Regents of the University of California.  All rights reserved.
  37  * @(#)setup.c  8.1 (Berkeley) 5/31/93
  38  * $FreeBSD: src/games/adventure/setup.c,v 1.8.2.1 2001/03/05 11:43:11 kris Exp $
  39  * $DragonFly: src/games/adventure/setup.c,v 1.2 2003/06/17 04:25:22 dillon Exp $
  40  */
  41
  42 /*
  43  * Setup: keep the structure of the original Adventure port, but use an
  44  * internal copy of the data file, serving as a sort of virtual disk.  It's
  45  * lightly encrypted to prevent casual snooping of the executable.
  46  *
  47  * Also do appropriate things to tabs so that bogus editors will do the right
  48  * thing with the data file.
  49  *
  50  */
  51
  52 #define SIG1 " *      Jim Gillogly"
  53 #define SIG2 " *      Sterday, 6 Thrimidge S.R. 1993, 15:24"
  54
  55 #include <stdio.h>
  56 #include <stdlib.h>
  57 #include <err.h>
  58 #include "hdr.h"        /* SEED lives in there; keep them coordinated. */
  59
  60 #define USAGE "Usage: setup file > data.c (file is typically glorkz)"
  61
  62 #define YES 1
  63 #define NO  0
  64
  65 #define LINE 10         /* How many values do we get on a line? */
  66
  67 int
  68 main(int argc, char **argv)
  69 {
  70         FILE *infile;
  71         int c, count, linestart;
  72
  73         if (argc != 2) errx(1, USAGE);
  74
  75         if ((infile = fopen(argv[1], "r")) == NULL)
  76                 err(1, "Can't read file %s", argv[1]);
  77         puts("/*\n * data.c: created by setup from the ascii data file.");
  78         puts(SIG1);
  79         puts(SIG2);
  80         puts(" */");
  81         printf("\n\nunsigned char data_file[] =\n{");
  82         srandom(SEED);
  83         count = 0;
  84         linestart = YES;
  85
  86         while ((c = getc(infile)) != EOF)
  87         {
  88                 if (linestart && c == ' ') /* Convert first spaces to tab */
  89                 {
  90                         if (count++ % LINE == 0)
  91                                 printf("\n\t");
  92                         printf("0x%02lx,", ('\t' ^ random()) & 0xFF);
  93                         while ((c = getc(infile)) == ' ' && c != EOF);
  94                         /* Drop the non-whitespace character through */
  95                         linestart = NO;
  96                 }
  97                 switch(c)
  98                 {
  99                     case '\t':
 100                         linestart = NO; /* Don't need to convert spaces */
 101                         break;
 102                     case '\n':
 103                         linestart = YES; /* Ready to convert spaces again */
 104                         break;
 105                 }
 106                 if (count++ % LINE == 0)
 107                         printf("\n\t");
 108                 printf("0x%02lx,", (c ^ random()) & 0xFF);
 109         }
 110         puts("\n\t0\n};");
 111         fclose(infile);
 112         exit(0);
 113 }