1 /* 2 * Copyright (C) 2022 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #pragma once 18 19 #ifdef ANDROID 20 21 #include <cutils/properties.h> 22 23 #else 24 25 #include <cstdio> 26 #include <cstdlib> 27 #include <cstring> 28 29 // NOLINTNEXTLINE(readability-identifier-naming) 30 constexpr int PROPERTY_VALUE_MAX = 92; 31 32 // NOLINTNEXTLINE(readability-identifier-naming) 33 auto inline property_get(const char *name, char *value, 34 const char *default_value) -> int { 35 // NOLINTNEXTLINE (concurrency-mt-unsafe) 36 char *prop = std::getenv(name); 37 snprintf(value, PROPERTY_VALUE_MAX, "%s", 38 (prop == nullptr) ? default_value : prop); 39 return static_cast<int>(strlen(value)); 40 } 41 42 #endif 43