| /* |
| * Copyright 2017, 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 "dhcpclient.h" |
| #include "log.h" |
| |
| static void usage(const char* program) { |
| ALOGE("Usage: %s [--no-gateway] -i <interface>", program); |
| ALOGE(" If the optional parameter --no-gateway is specified the client"); |
| ALOGE(" will not configure the default gateway of the system."); |
| } |
| |
| int main(int argc, char* argv[]) { |
| if (argc < 3) { |
| usage(argv[0]); |
| return 1; |
| } |
| const char* interfaceName = nullptr; |
| uint32_t options = 0; |
| |
| for (int i = 1; i < argc; ++i) { |
| if (strcmp(argv[i], "-i") == 0) { |
| if (i + 1 < argc) { |
| interfaceName = argv[++i]; |
| } else { |
| ALOGE("ERROR: -i parameter needs an argument"); |
| usage(argv[0]); |
| return 1; |
| } |
| } else if (strcmp(argv[i], "--no-gateway") == 0) { |
| options |= static_cast<uint32_t>(ClientOption::NoGateway); |
| } else { |
| ALOGE("ERROR: unknown parameters %s", argv[i]); |
| usage(argv[0]); |
| return 1; |
| } |
| } |
| if (interfaceName == nullptr) { |
| ALOGE("ERROR: No interface specified"); |
| usage(argv[0]); |
| return 1; |
| } |
| |
| DhcpClient client(options); |
| Result res = client.init(interfaceName); |
| if (!res) { |
| ALOGE("Failed to initialize DHCP client: %s\n", res.c_str()); |
| return 1; |
| } |
| |
| res = client.run(); |
| if (!res) { |
| ALOGE("DHCP client failed: %s\n", res.c_str()); |
| return 1; |
| } |
| // This is weird and shouldn't happen, the client should run forever. |
| return 0; |
| } |
| |