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 23using std::vector; 24 25namespace { 26 27namespace switches { 28 29// Don't daemon()ize; run in foreground. 30const char kForeground[] = "foreground"; 31// Flag to show the help message. 32const char kHelp[] = "help"; 33// The help message shown if help flag is passed to the program. 34const 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. 42void 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 53void OnStartup(const char* daemon_name, base::CommandLine* cl) { 54 LOG(INFO) << __func__; 55 SetupLogging(cl->HasSwitch(switches::kForeground), daemon_name); 56 return; 57} 58 59int 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} 74