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124 lines
3.1 KiB
124 lines
3.1 KiB
/******************************************************************************
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*
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* Copyright 2019 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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******************************************************************************/
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#include "hci/address.h"
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#include <algorithm>
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#include <cstdint>
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#include <cstdio>
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#include <iomanip>
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#include <sstream>
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#include "common/strings.h"
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namespace bluetooth {
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namespace hci {
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const Address Address::kAny{{0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF}};
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const Address Address::kEmpty{{0x00, 0x00, 0x00, 0x00, 0x00, 0x00}};
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// Address cannot initialize member variables as it is a POD type
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// NOLINTNEXTLINE(cppcoreguidelines-pro-type-member-init)
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Address::Address(const uint8_t (&addr)[6]) {
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std::copy(addr, addr + kLength, data());
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}
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Address::Address(std::initializer_list<uint8_t> l) {
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std::copy(l.begin(), std::min(l.begin() + kLength, l.end()), data());
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}
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std::string Address::ToString() const {
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std::stringstream ss;
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for (auto it = address.rbegin(); it != address.rend(); it++) {
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ss << std::nouppercase << std::hex << std::setw(2) << std::setfill('0') << +*it;
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if (std::next(it) != address.rend()) {
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ss << ':';
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}
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}
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return ss.str();
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}
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std::string Address::ToLegacyConfigString() const {
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return ToString();
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}
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std::optional<Address> Address::FromLegacyConfigString(const std::string& str) {
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return FromString(str);
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}
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std::optional<Address> Address::FromString(const std::string& from) {
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if (from.length() != 17) {
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return std::nullopt;
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}
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Address addr{};
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std::istringstream stream(from);
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std::string token;
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int index = 0;
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while (getline(stream, token, ':')) {
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if (index >= 6) {
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return std::nullopt;
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}
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if (token.length() != 2) {
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return std::nullopt;
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}
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char* temp = nullptr;
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addr.address.at(5 - index) = std::strtol(token.c_str(), &temp, 16);
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if (temp == token.c_str()) {
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// string token is empty or has wrong format
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return std::nullopt;
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}
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if (temp != (token.c_str() + token.size())) {
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// cannot parse whole string
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return std::nullopt;
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}
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index++;
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}
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if (index != 6) {
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return std::nullopt;
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}
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return addr;
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}
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bool Address::FromString(const std::string& from, Address& to) {
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auto addr = FromString(from);
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if (!addr) {
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to = {};
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return false;
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}
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to = std::move(*addr);
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return true;
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}
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size_t Address::FromOctets(const uint8_t* from) {
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std::copy(from, from + kLength, data());
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return kLength;
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};
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bool Address::IsValidAddress(const std::string& address) {
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return Address::FromString(address).has_value();
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}
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} // namespace hci
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} // namespace bluetooth
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