95 lines
2.3 KiB
C++
95 lines
2.3 KiB
C++
/*
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* Copyright (C) 2010 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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//#define LOG_NDEBUG 0
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#define LOG_TAG "hexdump"
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#include <utils/Log.h>
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#include "hexdump.h"
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#include "ADebug.h"
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#include "AString.h"
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#include <ctype.h>
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#include <stdint.h>
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#include <stdio.h>
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namespace android {
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static void appendIndent(AString *s, int32_t indent) {
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static const char kWhitespace[] =
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" "
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" ";
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CHECK_LT((size_t)indent, sizeof(kWhitespace));
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s->append(kWhitespace, indent);
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}
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void hexdump(const void *_data, size_t size, size_t indent, AString *appendTo) {
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const uint8_t *data = (const uint8_t *)_data;
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size_t offset = 0;
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while (offset < size) {
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AString line;
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appendIndent(&line, indent);
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char tmp[32];
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snprintf(tmp, sizeof(tmp), "%08lx: ", (unsigned long)offset);
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line.append(tmp);
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for (size_t i = 0; i < 16; ++i) {
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if (i == 8) {
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line.append(' ');
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}
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if (offset + i >= size) {
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line.append(" ");
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} else {
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snprintf(tmp, sizeof(tmp), "%02x ", data[offset + i]);
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line.append(tmp);
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}
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}
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line.append(' ');
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for (size_t i = 0; i < 16; ++i) {
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if (offset + i >= size) {
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break;
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}
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if (isprint(data[offset + i])) {
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line.append((char)data[offset + i]);
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} else {
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line.append('.');
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}
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}
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if (appendTo != NULL) {
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appendTo->append(line);
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appendTo->append("\n");
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} else {
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ALOGI("%s", line.c_str());
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}
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offset += 16;
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}
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}
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} // namespace android
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