65 lines
2.1 KiB
C
65 lines
2.1 KiB
C
/*
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* This file is part of the libpayload project.
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*
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* Copyright 2013 Google 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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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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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#include <libpayload.h>
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void hexdump(const void *memory, size_t length)
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{
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int i;
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uint8_t *m;
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int all_zero = 0;
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m = (uint8_t *) memory;
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for (i = 0; i < length; i += 16) {
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int j;
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all_zero++;
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for (j = 0; j < 16; j++) {
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if (m[i + j] != 0) {
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all_zero = 0;
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break;
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}
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}
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if (all_zero < 2) {
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printf("%8p:", memory + i);
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for (j = 0; j < 16; j++)
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printf(" %02x", m[i + j]);
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printf(" ");
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for (j = 0; j < 16; j++)
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printf("%c",
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isprint(m[i + j]) ? m[i + j] : '.');
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printf("\n");
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} else if (all_zero == 2) {
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printf("...\n");
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}
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}
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}
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