1 /* 2 * Copyright 2017, 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 "dhcpclient.h" 18 #include "log.h" 19 20 static void usage(const char* program) { 21 ALOGE("Usage: %s -i <interface>", program); 22 } 23 24 int main(int argc, char* argv[]) { 25 if (argc < 3) { 26 usage(argv[0]); 27 return 1; 28 } 29 const char* interfaceName = nullptr; 30 31 for (int i = 1; i < argc; ++i) { 32 if (strcmp(argv[i], "-i") == 0) { 33 if (i + 1 < argc) { 34 interfaceName = argv[++i]; 35 } else { 36 ALOGE("ERROR: -i parameter needs an argument"); 37 usage(argv[0]); 38 return 1; 39 } 40 } else { 41 ALOGE("ERROR: unknown parameters %s", argv[i]); 42 usage(argv[0]); 43 return 1; 44 } 45 } 46 if (interfaceName == nullptr) { 47 ALOGE("ERROR: No interface specified"); 48 usage(argv[0]); 49 return 1; 50 } 51 52 DhcpClient client; 53 Result res = client.init(interfaceName); 54 if (!res) { 55 ALOGE("Failed to initialize DHCP client: %s\n", res.c_str()); 56 return 1; 57 } 58 59 res = client.run(); 60 if (!res) { 61 ALOGE("DHCP client failed: %s\n", res.c_str()); 62 return 1; 63 } 64 // This is weird and shouldn't happen, the client should run forever. 65 return 0; 66 } 67 68
