xref: /dragonfly/games/adventure/setup.c (revision 6b5c5d0d)
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 }
114