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
usage(const char * program)20 static void usage(const char* program) {
21 ALOGE("Usage: %s -i <interface>", program);
22 }
23
main(int argc,char * argv[])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