xref: /netbsd/games/adventure/setup.c (revision bf9ec67e)
1 /* $NetBSD: setup.c,v 1.9 2001/08/29 18:22:56 jsm Exp $ */
2 
3 /*-
4  * Copyright (c) 1991, 1993
5  *	The Regents of the University of California.  All rights reserved.
6  *
7  * This code is derived from software contributed to Berkeley by
8  * Jim Gillogly at The Rand Corporation.
9  *
10  * Redistribution and use in source and binary forms, with or without
11  * modification, are permitted provided that the following conditions
12  * are met:
13  * 1. Redistributions of source code must retain the above copyright
14  *    notice, this list of conditions and the following disclaimer.
15  * 2. Redistributions in binary form must reproduce the above copyright
16  *    notice, this list of conditions and the following disclaimer in the
17  *    documentation and/or other materials provided with the distribution.
18  * 3. All advertising materials mentioning features or use of this software
19  *    must display the following acknowledgement:
20  *	This product includes software developed by the University of
21  *	California, Berkeley and its contributors.
22  * 4. Neither the name of the University nor the names of its contributors
23  *    may be used to endorse or promote products derived from this software
24  *    without specific prior written permission.
25  *
26  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
27  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
28  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
29  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
30  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
31  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
32  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
33  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
34  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
35  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
36  * SUCH DAMAGE.
37  */
38 
39 #ifndef lint
40 static char copyright[] = "@(#) Copyright (c) 1991, 1993\n\
41 	The Regents of the University of California.  All rights reserved.\n";
42 
43 #if 0
44 static char sccsid[] = "@(#)setup.c	8.1 (Berkeley) 5/31/93";
45 #else
46 static char rcsid[] = "$NetBSD: setup.c,v 1.9 2001/08/29 18:22:56 jsm 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 <stdio.h>
64 #include <errno.h>
65 #include <string.h>
66 #include <stdlib.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)\n"
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 main(int, char *[]);
77 
78 int
79 main(argc, argv)
80 	int     argc;
81 	char   *argv[];
82 {
83 	FILE   *infile;
84 	int     c, count, linestart;
85 
86 	if (argc != 2) {
87 		fprintf(stderr, USAGE);
88 		exit(1);
89 	}
90 
91 	if ((infile = fopen(argv[1], "r")) == NULL) {
92 		fprintf(stderr, "Can't read file %s: %s\n", argv[1],
93 		    strerror(errno));
94 		exit(1);
95 	}
96 	puts("/*\n * data.c: created by setup from the ascii data file.");
97 	puts(SIG1);
98 	puts(SIG2);
99 	puts(" */");
100 	printf("\n\nchar data_file[] =\n{");
101 	srandom(SEED);
102 	count = 0;
103 	linestart = YES;
104 
105 	while ((c = getc(infile)) != EOF) {
106 		if (linestart && c == ' ') {	/* Convert first spaces to tab */
107 			printf("0x%02x,", (unsigned int)('\t' ^ random()) & 0xFF);
108 			while ((c = getc(infile)) == ' ' && c != EOF);
109 			/* Drop the non-whitespace character through */
110 			linestart = NO;
111 		}
112 		switch (c) {
113 		case '\t':
114 			linestart = NO;	/* Don't need to convert spaces */
115 			break;
116 		case '\n':
117 			linestart = YES;	/* Ready to convert spaces
118 						 * again */
119 			break;
120 		}
121 		if (count++ % LINE == 0)	/* Finished a line? */
122 			printf("\n\t");
123 		printf("0x%02x,", (unsigned int)(c ^ random()) & 0xFF);
124 	}
125 	puts("\n\t0\n};");
126 	fclose(infile);
127 	fflush(stdout);
128 	if (ferror(stdout)) {
129 		perror("error writing standard output");
130 		exit(1);
131 	}
132 	exit(0);
133 }
134