NetBSD/usr.bin/hexdump/hexdump.c

111 lines
3.3 KiB
C

/* $NetBSD: hexdump.c,v 1.19 2016/03/04 02:54:38 dholland Exp $ */
/*
* Copyright (c) 1989, 1993
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#if HAVE_NBTOOL_CONFIG_H
#include "nbtool_config.h"
#endif
#include <sys/cdefs.h>
#if !defined(lint)
__COPYRIGHT("@(#) Copyright (c) 1989, 1993\
The Regents of the University of California. All rights reserved.");
#if 0
static char sccsid[] = "@(#)hexdump.c 8.1 (Berkeley) 6/6/93";
#else
__RCSID("$NetBSD: hexdump.c,v 1.19 2016/03/04 02:54:38 dholland Exp $");
#endif
#endif /* not lint */
#include <sys/types.h>
#include <errno.h>
#include <locale.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include "hexdump.h"
FS *fshead; /* head of format strings */
int blocksize; /* data block size */
int exitval; /* final exit value */
int length = -1; /* max bytes to read */
static int isod = 0;
int
main(int argc, char *argv[])
{
FS *tfs;
char *p;
setlocale(LC_ALL, "");
isod = 0;
p = strrchr(argv[0], 'o');
if (p != NULL && strcmp(p, "od") == 0)
isod = 1;
if (isod)
odsyntax(argc, &argv);
else
hexsyntax(argc, &argv);
/* figure out the data block size */
for (blocksize = 0, tfs = fshead; tfs; tfs = tfs->nextfs) {
tfs->bcnt = size(tfs);
if (blocksize < tfs->bcnt)
blocksize = tfs->bcnt;
}
/* rewrite the rules, do syntax checking */
for (tfs = fshead; tfs; tfs = tfs->nextfs)
rewrite(tfs);
stashargv(argv);
display();
exit(exitval);
}
void
usage(void)
{
const char *pname = getprogname();
(void)fprintf(stderr, "usage: %s ", pname);
if (isod)
(void)fprintf(stderr, "[-aBbcDdeFfHhIiLlOovXx] [-A base] "
"[-j skip] [-N length] [-t type_string] [[+]offset[.][Bb]] "
"[file ...]\n");
else
(void)fprintf(stderr, "[-bCcdovx] [-e format_string] [-f format_file] "
"[-n length] [-s skip] [file ...]\n");
exit(1);
}