1 /*
2 * Copyright (C) 2015 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 #define LOG_TAG "cmd"
18
19 #include <utils/Log.h>
20 #include <binder/Parcel.h>
21 #include <binder/ProcessState.h>
22 #include <binder/IResultReceiver.h>
23 #include <binder/IServiceManager.h>
24 #include <binder/TextOutput.h>
25 #include <utils/Vector.h>
26
27 #include <getopt.h>
28 #include <stdlib.h>
29 #include <stdio.h>
30 #include <string.h>
31 #include <unistd.h>
32 #include <sys/time.h>
33
34 using namespace android;
35
sort_func(const String16 * lhs,const String16 * rhs)36 static int sort_func(const String16* lhs, const String16* rhs)
37 {
38 return lhs->compare(*rhs);
39 }
40
41 class MyResultReceiver : public BnResultReceiver
42 {
43 public:
send(int32_t)44 virtual void send(int32_t /*resultCode*/) {
45 }
46 };
47
main(int argc,char * const argv[])48 int main(int argc, char* const argv[])
49 {
50 signal(SIGPIPE, SIG_IGN);
51 sp<ProcessState> proc = ProcessState::self();
52 proc->startThreadPool();
53
54 sp<IServiceManager> sm = defaultServiceManager();
55 fflush(stdout);
56 if (sm == NULL) {
57 ALOGE("Unable to get default service manager!");
58 aerr << "cmd: Unable to get default service manager!" << endl;
59 return 20;
60 }
61
62 if (argc == 1) {
63 aout << "cmd: no service specified; use -l to list all services" << endl;
64 return 20;
65 }
66
67 if ((argc == 2) && (strcmp(argv[1], "-l") == 0)) {
68 Vector<String16> services = sm->listServices();
69 services.sort(sort_func);
70 aout << "Currently running services:" << endl;
71
72 for (size_t i=0; i<services.size(); i++) {
73 sp<IBinder> service = sm->checkService(services[i]);
74 if (service != NULL) {
75 aout << " " << services[i] << endl;
76 }
77 }
78 return 0;
79 }
80
81 Vector<String16> args;
82 for (int i=2; i<argc; i++) {
83 args.add(String16(argv[i]));
84 }
85 String16 cmd = String16(argv[1]);
86 sp<IBinder> service = sm->checkService(cmd);
87 if (service == NULL) {
88 aerr << "Can't find service: " << argv[1] << endl;
89 return 20;
90 }
91
92 // TODO: block until a result is returned to MyResultReceiver.
93 IBinder::shellCommand(service, STDIN_FILENO, STDOUT_FILENO, STDERR_FILENO, args,
94 new MyResultReceiver());
95 return 0;
96 }
97