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
  35 #include "log.h"
  36
  37 #include "threadUtils.hpp"
  38
  39 Log* Log::inst = NULL;
  40 Mutex Log::instMutex;
  41 Log& cLog = Log::instance();
  42
  43 LogStringBuilder::LogStringBuilder(LogStringBuilder const& src) : log(src.log), prio(src.prio)
  44 {
  45   stream << src.stream.str();
  46 }
  47
  48 LogStringBuilder::LogStringBuilder(Log& l, int p) : log(l), prio(p)
  49 {
  50       // do something on the start of the line.
  51 }
  52
  53 LogStringBuilder::~LogStringBuilder()
  54 {
  55   Lock lock(log.mutex);
  56 #ifndef NOSYSLOG
  57   syslog(prio | log.getFacility(), "%s", stream.str().c_str());
  58 #endif
  59 }
  60
  61 Log& Log::instance()
  62 {
  63   Lock lock(instMutex);
  64   static instanceCleaner c;
  65   if(!inst)
  66     inst = new Log();
  67
  68   return *inst;
  69 }
  70
  71 Log::Log()
  72 {
  73   facility = FAC_DAEMON;
  74   logName = "anytun";
  75   open();
  76 }
  77
  78 Log::~Log()
  79 {
  80 #ifndef NOSYSLOG
  81   closelog();
  82 #endif
  83 }
  84
  85 void Log::open()
  86 {
  87 #ifndef NOSYSLOG
  88   openlog(logName.c_str(), LOG_PID, facility);
  89 #endif
  90 }
  91
  92 Log& Log::setLogName(std::string newLogName)
  93 {
  94   logName = newLogName;
  95   open();
  96   return *this;
  97 }
  98
  99 Log& Log::setFacility(int newFacility)
 100 {
 101   facility = newFacility;
 102   open();
 103   return *this;
 104 }