| /* |
| * Copyright (C) 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. |
| */ |
| |
| #pragma once |
| |
| #include <string> |
| |
| namespace android { |
| namespace netdevice { |
| |
| /** |
| * Returns the index of a given network interface. |
| * |
| * If the syscall to check the index fails with other error than ENODEV, it gets logged and the |
| * return value indicates the interface doesn't exists. |
| * |
| * \param ifname Interface to check |
| * \return Interface index, or 0 if the interface doesn't exist |
| */ |
| unsigned int nametoindex(const std::string& ifname); |
| |
| } // namespace netdevice |
| } // namespace android |