/* * 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 <cstdlib> #include <string> #include "Log.h" #include <sys/system_properties.h> #define LOG_TAG "SysProp" std::string getSystemPropViaGet(const char* key, std::string default_value = "") { char buffer[PROP_VALUE_MAX + 1]; int bufferLen = __system_property_get(key, buffer); if (bufferLen > PROP_VALUE_MAX || bufferLen == 0) { return default_value; } return std::string(buffer, bufferLen); } int getSystemPropViaGetAsInt(const char* key, int default_value = 0) { char buffer[PROP_VALUE_MAX + 1]; int bufferLen = __system_property_get(key, buffer); if (bufferLen > PROP_VALUE_MAX || bufferLen == 0) { return default_value; } return ::atoi(buffer); } int getSystemPropViaGetAsBool(const char* key, bool default_value = false) { return getSystemPropViaGetAsInt(key, default_value) != 0; }