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