xref: /netbsd/usr.bin/hexdump/hexdump.c (revision c4a72b64)
1 /*	$NetBSD: hexdump.c,v 1.8 2002/11/12 22:41:01 kleink Exp $	*/
2 
3 /*
4  * Copyright (c) 1989, 1993
5  *	The Regents of the University of California.  All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  * 3. All advertising materials mentioning features or use of this software
16  *    must display the following acknowledgement:
17  *	This product includes software developed by the University of
18  *	California, Berkeley and its contributors.
19  * 4. 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 #include <sys/cdefs.h>
37 #ifndef lint
38 __COPYRIGHT("@(#) Copyright (c) 1989, 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[] = "@(#)hexdump.c	8.1 (Berkeley) 6/6/93";
45 #else
46 __RCSID("$NetBSD: hexdump.c,v 1.8 2002/11/12 22:41:01 kleink Exp $");
47 #endif
48 #endif /* not lint */
49 
50 #include <sys/types.h>
51 
52 #include <errno.h>
53 #include <locale.h>
54 #include <stdlib.h>
55 #include <stdio.h>
56 #include <string.h>
57 
58 #include "hexdump.h"
59 
60 FS *fshead;				/* head of format strings */
61 int blocksize;				/* data block size */
62 int exitval;				/* final exit value */
63 int length = -1;			/* max bytes to read */
64 
65 int	main __P((int, char **));
66 
67 int
68 main(argc, argv)
69 	int argc;
70 	char *argv[];
71 {
72 	FS *tfs;
73 	char *p;
74 
75 	setlocale(LC_ALL, "");
76 
77 	if (!(p = strrchr(argv[0], 'o')) || strcmp(p, "od"))
78 		newsyntax(argc, &argv);
79 	else
80 		oldsyntax(argc, &argv);
81 
82 	/* figure out the data block size */
83 	for (blocksize = 0, tfs = fshead; tfs; tfs = tfs->nextfs) {
84 		tfs->bcnt = size(tfs);
85 		if (blocksize < tfs->bcnt)
86 			blocksize = tfs->bcnt;
87 	}
88 	/* rewrite the rules, do syntax checking */
89 	for (tfs = fshead; tfs; tfs = tfs->nextfs)
90 		rewrite(tfs);
91 
92 	(void)next(argv);
93 	display();
94 	exit(exitval);
95 }
96