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 anytun.org <satp@wirdorange.org>
  15  *
  16  *  This program is free software; you can redistribute it and/or modify
  17  *  it under the terms of the GNU General Public License version 2
  18  *  as published by the Free Software Foundation.
  19  *
  20  *  This program is distributed in the hope that it will be useful,
  21  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  22  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  23  *  GNU General Public License for more details.
  24  *
  25  *  You should have received a copy of the GNU General Public License
  26  *  along with this program (see the file COPYING included with this
  27  *  distribution); if not, write to the Free Software Foundation, Inc.,
  28  *  59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  29  */
  30
  31 #include <iostream>
  32 #include <string>
  33 #include <syslog.h>
  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   syslog(prio | log.getFacility(), stream.str().c_str());
  57 }
  58
  59 Log& Log::instance()
  60 {
  61   Lock lock(instMutex);
  62   static instanceCleaner c;
  63   if(!inst)
  64     inst = new Log();
  65
  66   return *inst;
  67 }
  68
  69 Log::Log()
  70 {
  71   facility = LOG_DAEMON;
  72   logName = "anytun";
  73   open();
  74 }
  75
  76 Log::~Log()
  77 {
  78   closelog();
  79 }
  80
  81 void Log::open()
  82 {
  83   openlog(logName.c_str(), LOG_PID, facility);
  84 }
  85
  86 Log& Log::setLogName(std::string newLogName)
  87 {
  88   logName = newLogName;
  89   open();
  90   return *this;
  91 }
  92
  93 Log& Log::setFacility(int newFacility)
  94 {
  95   facility = newFacility;
  96   open();
  97   return *this;
  98 }