Ningyuan Wang | e44553d | 2015-11-18 14:53:18 -0800 | [diff] [blame] | 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 | |
| 18 | #include <base/command_line.h> |
| 19 | #include <base/logging.h> |
| 20 | #include <brillo/syslog_logging.h> |
| 21 | #include "dhcp_client/daemon.h" |
| 22 | |
| 23 | using std::vector; |
| 24 | |
| 25 | namespace { |
| 26 | |
| 27 | namespace switches { |
| 28 | |
| 29 | // Don't daemon()ize; run in foreground. |
| 30 | const char kForeground[] = "foreground"; |
Ningyuan Wang | 88c688a | 2015-12-09 17:59:01 -0800 | [diff] [blame] | 31 | // Flag to show the help message. |
Ningyuan Wang | e44553d | 2015-11-18 14:53:18 -0800 | [diff] [blame] | 32 | const char kHelp[] = "help"; |
| 33 | // The help message shown if help flag is passed to the program. |
| 34 | const char kHelpMessage[] = "\n help message \n"; |
| 35 | |
| 36 | } // namespace switches |
| 37 | |
| 38 | } // namespace |
| 39 | |
| 40 | // Always logs to the syslog and logs to stderr if |
| 41 | // we are running in the foreground. |
| 42 | void SetupLogging(bool foreground, |
| 43 | const char* daemon_name) { |
| 44 | int log_flags = 0; |
| 45 | log_flags |= brillo::kLogToSyslog; |
| 46 | log_flags |= brillo::kLogHeader; |
| 47 | if (foreground) { |
| 48 | log_flags |= brillo::kLogToStderr; |
| 49 | } |
| 50 | brillo::InitLog(log_flags); |
| 51 | } |
| 52 | |
| 53 | void OnStartup(const char* daemon_name, base::CommandLine* cl) { |
| 54 | LOG(INFO) << __func__; |
| 55 | SetupLogging(cl->HasSwitch(switches::kForeground), daemon_name); |
| 56 | return; |
| 57 | } |
| 58 | |
| 59 | int main(int argc, char* argv[]) { |
| 60 | base::CommandLine::Init(argc, argv); |
| 61 | base::CommandLine* cl = base::CommandLine::ForCurrentProcess(); |
| 62 | |
| 63 | if (cl->HasSwitch(switches::kHelp)) { |
| 64 | LOG(INFO) << switches::kHelpMessage; |
| 65 | return 0; |
| 66 | } |
| 67 | |
| 68 | dhcp_client::Daemon daemon(base::Bind(&OnStartup, argv[0], cl)); |
| 69 | |
| 70 | daemon.Run(); |
| 71 | |
| 72 | return 0; |
| 73 | } |