xref: /openbsd/games/adventure/setup.c (revision 404b540a)
1 /*	$OpenBSD: setup.c,v 1.8 2004/07/09 15:59:26 deraadt Exp $	*/
2 /*	$NetBSD: setup.c,v 1.2 1995/03/21 12:05:10 cgd 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 #ifndef lint
37 static char copyright[] =
38 "@(#) Copyright (c) 1991, 1993\n\
39 	The Regents of the University of California.  All rights reserved.\n";
40 #endif /* not lint */
41 
42 #ifndef lint
43 #if 0
44 static char sccsid[] = "@(#)setup.c	8.1 (Berkeley) 5/31/93";
45 #else
46 static char rcsid[] = "$OpenBSD: setup.c,v 1.8 2004/07/09 15:59:26 deraadt Exp $";
47 #endif
48 #endif /* not lint */
49 
50 /*
51  * Setup: keep the structure of the original Adventure port, but use an
52  * internal copy of the data file, serving as a sort of virtual disk.  It's
53  * lightly encrypted to prevent casual snooping of the executable.
54  *
55  * Also do appropriate things to tabs so that bogus editors will do the right
56  * thing with the data file.
57  *
58  */
59 
60 #define SIG1 " *      Jim Gillogly"
61 #define SIG2 " *      Sterday, 6 Thrimidge S.R. 1993, 15:24"
62 
63 #include <err.h>
64 #include <stdio.h>
65 #include <stdlib.h>
66 #include "hdr.h"	/* SEED lives in there; keep them coordinated. */
67 
68 #define USAGE "Usage: setup file > data.c (file is typically glorkz)\n"
69 
70 #define YES 1
71 #define NO  0
72 
73 #define LINE 10		/* How many values do we get on a line? */
74 
75 int
76 main(int argc, char *argv[])
77 {
78 	FILE	*infile;
79 	int	c, count, linestart;
80 
81 	if (argc != 2) {
82 		fprintf(stderr, USAGE);
83 		exit(1);
84 	}
85 
86 	if ((infile = fopen(argv[1], "r")) == NULL)
87 		err(1, "Can't read file %s", argv[1]);
88 	puts("/*\n * data.c: created by setup from the ascii data file.");
89 	puts(SIG1);
90 	puts(SIG2);
91 	puts(" */");
92 	printf("\n\nchar data_file[] =\n{");
93 	srandom(SEED);
94 	count = 0;
95 	linestart = YES;
96 
97 	while ((c = getc(infile)) != EOF) {
98 		if (count++ % LINE == 0)
99 			printf("\n\t");
100 		if (linestart && c == ' ') { /* Convert first spaces to tab */
101 			printf("0x%02x,", (unsigned int)('\t' ^ random()) & 0xFF);
102 			while ((c = getc(infile)) == ' ' && c != EOF);
103 			/* Drop the non-whitespace character through */
104 			linestart = NO;
105 		}
106 		switch (c) {
107 		case '\t':
108 			linestart = NO; /* Don't need to convert spaces */
109 			break;
110 		case '\n':
111 			linestart = YES; /* Ready to convert spaces again */
112 			break;
113 		}
114 		if (count++ % LINE == 0)
115 			printf("\n\t");
116 		printf("0x%02x,", (unsigned int)(c ^ random()) & 0xFF);
117 	}
118 	puts("\n\t0\n};");
119 	fclose(infile);
120 	exit(0);
121 }
122