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97 lines
2.9 KiB
C
97 lines
2.9 KiB
C
/*-
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* Copyright (c) 1986, 1988, 1991, 1993
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* The Regents of the University of California. All rights reserved.
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* (c) UNIX System Laboratories, Inc.
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* All or some portions of this file are derived from material licensed
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* to the University of California by American Telephone and Telegraph
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* Co. or Unix System Laboratories, Inc. and are reproduced herein with
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* the permission of UNIX System Laboratories, Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)subr_prf.c 8.3 (Berkeley) 1/21/94
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/types.h>
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#include <libutil.h>
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#include <stdio.h>
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void
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hexdump(const void *ptr, int length, const char *hdr, int flags)
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{
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int i, j, k;
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int cols;
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const unsigned char *cp;
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char delim;
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if ((flags & HD_DELIM_MASK) != 0)
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delim = (flags & HD_DELIM_MASK) >> 8;
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else
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delim = ' ';
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if ((flags & HD_COLUMN_MASK) != 0)
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cols = flags & HD_COLUMN_MASK;
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else
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cols = 16;
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cp = ptr;
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for (i = 0; i < length; i+= cols) {
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if (hdr != NULL)
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printf("%s", hdr);
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if ((flags & HD_OMIT_COUNT) == 0)
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printf("%04x ", i);
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if ((flags & HD_OMIT_HEX) == 0) {
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for (j = 0; j < cols; j++) {
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k = i + j;
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if (k < length)
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printf("%c%02x", delim, cp[k]);
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else
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printf(" ");
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}
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}
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if ((flags & HD_OMIT_CHARS) == 0) {
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printf(" |");
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for (j = 0; j < cols; j++) {
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k = i + j;
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if (k >= length)
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printf(" ");
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else if (cp[k] >= ' ' && cp[k] <= '~')
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printf("%c", cp[k]);
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else
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printf(".");
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}
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printf("|");
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}
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printf("\n");
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}
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}
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