/* * Copyright (C) 2021 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. */ #pragma once #include <nativehelper/JNIHelp.h> #include "JniConstants.h" #include "ScopedBytes.h" /** * Wrapper for managing the name and length of msghdr. */ class ScopedMsghdr { public: ScopedMsghdr() { } ~ScopedMsghdr() { if (mMsghdrValue.msg_iov) free(mMsghdrValue.msg_iov); if (mMsghdrValue.msg_control) free(mMsghdrValue.msg_control); } struct msghdr& getObject() { return mMsghdrValue; } void setMsgNameAndLen(sockaddr* ss, socklen_t sa_len) { mMsghdrValue.msg_name = ss; mMsghdrValue.msg_namelen = sa_len; } bool isNameLenValid() const { if(mMsghdrValue.msg_name == NULL) { return false; } if ((mMsghdrValue.msg_namelen != sizeof(sockaddr_in6)) && (mMsghdrValue.msg_namelen != sizeof(sockaddr_in))) { return false; } return true; } private: struct msghdr mMsghdrValue = {}; };