src/log.cpp

   1 /*
   2  *  anytun
   3  *
   4  *  The secure anycast tunneling protocol (satp) defines a protocol used
   5  *  for communication between any combination of unicast and anycast
   6  *  tunnel endpoints.  It has less protocol overhead than IPSec in Tunnel
   7  *  mode and allows tunneling of every ETHER TYPE protocol (e.g.
   8  *  ethernet, ip, arp ...). satp directly includes cryptography and
   9  *  message authentication based on the methodes used by SRTP.  It is
  10  *  intended to deliver a generic, scaleable and secure solution for
  11  *  tunneling and relaying of packets of any protocol.
  12  *
  13  *
  14  *  Copyright (C) 2007-2008 Othmar Gsenger, Erwin Nindl,
  15  *                          Christian Pointner <satp@wirdorange.org>
  16  *
  17  *  This file is part of Anytun.
  18  *
  19  *  Anytun is free software: you can redistribute it and/or modify
  20  *  it under the terms of the GNU General Public License version 3 as
  21  *  published by the Free Software Foundation.
  22  *
  23  *  Anytun is distributed in the hope that it will be useful,
  24  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  25  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  26  *  GNU General Public License for more details.
  27  *
  28  *  You should have received a copy of the GNU General Public License
  29  *  along with anytun.  If not, see <http://www.gnu.org/licenses/>.
  30  */
  31
  32 #include <iostream>
  33 #include <string>
  34 #include <syslog.h>
  35
  36 #include "log.h"
  37
  38 #include "threadUtils.hpp"
  39
  40 Log* Log::inst = NULL;
  41 Mutex Log::instMutex;
  42 Log& cLog = Log::instance();
  43
  44 LogStringBuilder::LogStringBuilder(LogStringBuilder const& src) : log(src.log), prio(src.prio)
  45 {
  46   stream << src.stream.str();
  47 }
  48
  49 LogStringBuilder::LogStringBuilder(Log& l, int p) : log(l), prio(p)
  50 {
  51       // do something on the start of the line.
  52 }
  53
  54 LogStringBuilder::~LogStringBuilder()
  55 {
  56   Lock lock(log.mutex);
  57   syslog(prio | log.getFacility(), stream.str().c_str());
  58 }
  59
  60 Log& Log::instance()
  61 {
  62   Lock lock(instMutex);
  63   static instanceCleaner c;
  64   if(!inst)
  65     inst = new Log();
  66
  67   return *inst;
  68 }
  69
  70 Log::Log()
  71 {
  72   facility = LOG_DAEMON;
  73   logName = "anytun";
  74   open();
  75 }
  76
  77 Log::~Log()
  78 {
  79   closelog();
  80 }
  81
  82 void Log::open()
  83 {
  84   openlog(logName.c_str(), LOG_PID, facility);
  85 }
  86
  87 Log& Log::setLogName(std::string newLogName)
  88 {
  89   logName = newLogName;
  90   open();
  91   return *this;
  92 }
  93
  94 Log& Log::setFacility(int newFacility)
  95 {
  96   facility = newFacility;
  97   open();
  98   return *this;
  99 }