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