games/adventure/setup.c

   1 /* @(#)setup.c  8.1 (Berkeley) 5/31/93 */
   2 /* $NetBSD: setup.c,v 1.11 2005/07/01 00:03:36 jmc Exp $ */
   3
   4 /*-
   5  * Copyright (c) 1991, 1993
   6  *      The Regents of the University of California.  All rights reserved.
   7  *
   8  * This code is derived from software contributed to Berkeley by
   9  * Jim Gillogly at The Rand Corporation.
  10  *
  11  * Redistribution and use in source and binary forms, with or without
  12  * modification, are permitted provided that the following conditions
  13  * are met:
  14  * 1. Redistributions of source code must retain the above copyright
  15  *    notice, this list of conditions and the following disclaimer.
  16  * 2. Redistributions in binary form must reproduce the above copyright
  17  *    notice, this list of conditions and the following disclaimer in the
  18  *    documentation and/or other materials provided with the distribution.
  19  * 3. 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 /*
  37  * Setup: keep the structure of the original Adventure port, but use an
  38  * internal copy of the data file, serving as a sort of virtual disk.  It's
  39  * lightly encrypted to prevent casual snooping of the executable.
  40  *
  41  * Also do appropriate things to tabs so that bogus editors will do the right
  42  * thing with the data file.
  43  *
  44  */
  45
  46 #define SIG1 " *      Jim Gillogly"
  47 #define SIG2 " *      Sterday, 6 Thrimidge S.R. 1993, 15:24"
  48
  49 #include <stdio.h>
  50 #include <errno.h>
  51 #include <string.h>
  52 #include <stdlib.h>
  53 #include "hdr.h"        /* SEED lives in there; keep them coordinated. */
  54
  55 #define USAGE "Usage: setup file > data.c (file is typically glorkz)\n"
  56
  57 #define YES 1
  58 #define NO  0
  59
  60 #define LINE 10                 /* How many values do we get on a line? */
  61
  62 int main(int, char *[]);
  63
  64 int
  65 main(int argc, char *argv[])
  66 {
  67         FILE   *infile;
  68         int     c, count, linestart;
  69
  70         if (argc != 2) {
  71                 fprintf(stderr, USAGE);
  72                 exit(1);
  73         }
  74
  75         if ((infile = fopen(argv[1], "r")) == NULL) {
  76                 fprintf(stderr, "Can't read file %s: %s\n", argv[1],
  77                     strerror(errno));
  78                 exit(1);
  79         }
  80         puts("/*\n * data.c: created by setup from the ascii data file.");
  81         puts(SIG1);
  82         puts(SIG2);
  83         puts(" */");
  84         printf("\n\nchar data_file[] =\n{");
  85         srandom(SEED);
  86         count = 0;
  87         linestart = YES;
  88
  89         while ((c = getc(infile)) != EOF) {
  90                 if (linestart && c == ' ') { /* Convert first spaces to tab */
  91                         printf("0x%02x,",
  92                             (unsigned int)('\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                 case '\t':
  99                         linestart = NO; /* Don't need to convert spaces */
 100                         break;
 101                 case '\n':
 102                         linestart = YES;        /* Ready to convert spaces
 103                                                  * again */
 104                         break;
 105                 }
 106                 if (count++ % LINE == 0)        /* Finished a line? */
 107                         printf("\n\t");
 108                 printf("0x%02x,", (unsigned int)(c ^ random()) & 0xFF);
 109         }
 110         puts("\n\t0\n};");
 111         fclose(infile);
 112         fflush(stdout);
 113         if (ferror(stdout)) {
 114                 perror("error writing standard output");
 115                 exit(1);
 116         }
 117         exit(0);
 118 }