62 lines
1.8 KiB
C++
62 lines
1.8 KiB
C++
/*
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* Copyright (C) 2017 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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#include <sstream>
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#include "netdutils/Slice.h"
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namespace android {
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namespace netdutils {
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namespace {
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// Convert one byte to a two character hexadecimal string
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const std::string toHex(uint8_t byte) {
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const std::array<char, 16> kLookup = {
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{'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f'}};
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return {kLookup[byte >> 4], kLookup[byte & 0xf]};
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}
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} // namespace
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std::string toString(const Slice s) {
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return std::string(reinterpret_cast<char*>(s.base()), s.size());
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}
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std::string toHex(const Slice s, int wrap) {
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Slice tail = s;
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int count = 0;
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std::stringstream ss;
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while (!tail.empty()) {
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uint8_t byte = 0;
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extract(tail, byte);
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ss << toHex(byte);
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if ((++count % wrap) == 0) {
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ss << "\n";
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}
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tail = drop(tail, 1);
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}
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return ss.str();
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}
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std::ostream& operator<<(std::ostream& os, const Slice& slice) {
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return os << std::hex << "Slice[base: " << reinterpret_cast<void*>(slice.base())
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<< ", limit: " << reinterpret_cast<void*>(slice.limit()) << ", size: 0x"
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<< slice.size() << "]" << std::dec;
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}
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} // namespace netdutils
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} // namespace android
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