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69 lines
1.9 KiB
69 lines
1.9 KiB
/*
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* Copyright (C) 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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#include "vsockinfo.h"
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#ifdef __BIONIC__
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#include <sstream>
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#include <android-base/logging.h>
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#include <cutils/properties.h>
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namespace android::hardware::automotive::utils {
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namespace {
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std::optional<unsigned> getNumberFromProperty(const char* key) {
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auto value = property_get_int64(key, -1);
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if ((value <= 0) || (value > UINT_MAX)) {
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LOG(WARNING) << key << " is missing or out of bounds";
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return std::nullopt;
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}
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return static_cast<unsigned int>(value);
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}
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std::optional<unsigned> getNumberFromProperties(const PropertyList& arr) {
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for (const auto& key : arr) {
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auto val = getNumberFromProperty(key.c_str());
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if (val) return val;
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}
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return std::nullopt;
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}
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} // namespace
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std::optional<VsockConnectionInfo> VsockConnectionInfo::fromRoPropertyStore(
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const PropertyList& cid_props, const PropertyList& port_props) {
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const auto cid = getNumberFromProperties(cid_props);
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const auto port = getNumberFromProperties(port_props);
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if (cid && port) {
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return {{*cid, *port}};
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} else {
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return {};
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}
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}
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std::string VsockConnectionInfo::str() const {
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std::stringstream ss;
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ss << "vsock:" << cid << ":" << port;
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return ss.str();
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}
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} // namespace android::hardware::automotive::utils
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#endif // __BIONIC__
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