xref: /dragonfly/games/adventure/setup.c (revision cd1c6085)
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 }
108