1 /* 2 * Copyright (C) 2018 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 #include "common/libs/utils/environment.h" 18 19 #include <stdlib.h> 20 21 namespace cvd { 22 StringFromEnv(const std::string & varname,const std::string & defval)23std::string StringFromEnv(const std::string& varname, 24 const std::string& defval) { 25 const char* const valstr = getenv(varname.c_str()); 26 if (!valstr) { 27 return defval; 28 } 29 return valstr; 30 } 31 32 } // namespace cvd 33