xref: /dragonfly/games/adventure/setup.c (revision 984263bc)
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 
37 #ifndef lint
38 static const char copyright[] =
39 "@(#) Copyright (c) 1991, 1993\n\
40 	The Regents of the University of California.  All rights reserved.\n";
41 #endif /* not lint */
42 
43 #ifndef lint
44 #if 0
45 static char sccsid[] = "@(#)setup.c	8.1 (Berkeley) 5/31/93";
46 #endif
47 static const char rcsid[] =
48  "$FreeBSD: src/games/adventure/setup.c,v 1.8.2.1 2001/03/05 11:43:11 kris Exp $";
49 #endif /* not lint */
50 
51 /*
52  * Setup: keep the structure of the original Adventure port, but use an
53  * internal copy of the data file, serving as a sort of virtual disk.  It's
54  * lightly encrypted to prevent casual snooping of the executable.
55  *
56  * Also do appropriate things to tabs so that bogus editors will do the right
57  * thing with the data file.
58  *
59  */
60 
61 #define SIG1 " *      Jim Gillogly"
62 #define SIG2 " *      Sterday, 6 Thrimidge S.R. 1993, 15:24"
63 
64 #include <stdio.h>
65 #include <stdlib.h>
66 #include <err.h>
67 #include "hdr.h"        /* SEED lives in there; keep them coordinated. */
68 
69 #define USAGE "Usage: setup file > data.c (file is typically glorkz)"
70 
71 #define YES 1
72 #define NO  0
73 
74 #define LINE 10         /* How many values do we get on a line? */
75 
76 int
77 main(int argc, char **argv)
78 {
79 	FILE *infile;
80 	int c, count, linestart;
81 
82 	if (argc != 2) errx(1, USAGE);
83 
84 	if ((infile = fopen(argv[1], "r")) == NULL)
85 		err(1, "Can't read file %s", argv[1]);
86 	puts("/*\n * data.c: created by setup from the ascii data file.");
87 	puts(SIG1);
88 	puts(SIG2);
89 	puts(" */");
90 	printf("\n\nunsigned char data_file[] =\n{");
91 	srandom(SEED);
92 	count = 0;
93 	linestart = YES;
94 
95 	while ((c = getc(infile)) != EOF)
96 	{
97 		if (linestart && c == ' ') /* Convert first spaces to tab */
98 		{
99 			if (count++ % LINE == 0)
100 				printf("\n\t");
101 			printf("0x%02lx,", ('\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 		{
108 		    case '\t':
109 			linestart = NO; /* Don't need to convert spaces */
110 			break;
111 		    case '\n':
112 			linestart = YES; /* Ready to convert spaces again */
113 			break;
114 		}
115 		if (count++ % LINE == 0)
116 			printf("\n\t");
117 		printf("0x%02lx,", (c ^ random()) & 0xFF);
118 	}
119 	puts("\n\t0\n};");
120 	fclose(infile);
121 	exit(0);
122 }
123