#include <cstdio>

#include "rutil/ResipAssert.h"

#include "rutil/SysLogBuf.hxx"

#include "rutil/Log.hxx"

#ifndef EOF

# define EOF (-1)

#endif

using resip::SysLogBuf;

SysLogBuf::SysLogBuf ()

 : mLevel(Log::Debug),

   mAppName(""),

   mFacility(LOG_DAEMON)

{

   init();

}

SysLogBuf::SysLogBuf (const resip::Data& ident, int facility)

 : mLevel(Log::Debug),

   mAppName(ident),

   mFacility(facility)

{

   init();

}

void

SysLogBuf::init()

{

#if !defined(WIN32)

   setp(buffer,buffer+Size);

   const char* _ident = 0;

   if(!mAppName.empty())

   {

      _ident = mAppName.c_str();

   }

   openlog (_ident, LOG_NDELAY | LOG_PID, mFacility);

#endif

}

SysLogBuf::~SysLogBuf()

{

}

int 

SysLogBuf::sync()

{

#if !defined(WIN32)

   // Default to debug level for Stack, Debug and unrecognised values

   int _level = LOG_DEBUG;

   // For efficiency, we check mLevel in decreasing order of frequency,

   // anticipating that Stack is the most common and Crit is the least

   // common.

   switch(mLevel)

   {

      case Log::Stack:

      case Log::Debug:

         // This is just here to avoid traversing the rest

         // of the switch block for every Stack or Debug message.

         // They will just be logged with the default LOG_DEBUG

         // specified above.

         break;

      case Log::Info:

         _level = LOG_INFO;

         break;

      case Log::Warning:

         _level = LOG_WARNING;

         break;

      case Log::Err:

         _level = LOG_ERR;

         break;

      case Log::Crit:

         _level = LOG_CRIT;

         break;

      default:

         // just let it use the default value defined above

         break;

   }

   *(pptr()) = 0;

   syslog (mFacility | _level, "%s", pbase());

   // Set mLevel back to the default level for the next log entry

   // in case it is not explicitly specified next time.

   mLevel = Log::Debug;

   setp(buffer, buffer+Size);

#else

   resip_assert(0);

#endif

   return 0;

}

int 

SysLogBuf::overflow (int c)

{

   sync();

   if (c != EOF) 

   {

      *pptr() = static_cast<unsigned char>(c);

      pbump(1);

   }

   return c;

}

std::ostream& resip::operator<< (std::ostream& os, const resip::Log::Level& level)

{

   // FIXME - we should probably find a more precise way to make sure

   // that this can never be done for the wrong type of stream.

   // For now, we rely on Log.cxx checking if mLogger is of type Syslog

   // and not sending Level to the stream otherwise.

   static_cast<SysLogBuf *>(os.rdbuf())->mLevel = level;

   return os;

}

/* ====================================================================

 * The Vovida Software License, Version 1.0 

 * 

 * Copyright (c) 2000-2005 Vovida Networks, Inc.  All rights reserved.

 * 

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions

 * are met:

 * 

 * 1. Redistributions of source code must retain the above copyright

 *    notice, this list of conditions and the following disclaimer.

 * 

 * 2. Redistributions in binary form must reproduce the above copyright

 *    notice, this list of conditions and the following disclaimer in

 *    the documentation and/or other materials provided with the

 *    distribution.

 * 

 * 3. The names "VOCAL", "Vovida Open Communication Application Library",

 *    and "Vovida Open Communication Application Library (VOCAL)" must

 *    not be used to endorse or promote products derived from this

 *    software without prior written permission. For written

 *    permission, please contact vocal@vovida.org.

 *

 * 4. Products derived from this software may not be called "VOCAL", nor

 *    may "VOCAL" appear in their name, without prior written

 *    permission of Vovida Networks, Inc.

 * 

 * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESSED OR IMPLIED

 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES

 * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, TITLE AND

 * NON-INFRINGEMENT ARE DISCLAIMED.  IN NO EVENT SHALL VOVIDA

 * NETWORKS, INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT DAMAGES

 * IN EXCESS OF $1,000, NOR FOR ANY INDIRECT, INCIDENTAL, SPECIAL,

 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,

 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR

 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY

 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE

 * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH

 * DAMAGE.

 * 

 * ====================================================================

 * 

 * This software consists of voluntary contributions made by Vovida

 * Networks, Inc. and many individuals on behalf of Vovida Networks,

 * Inc.  For more information on Vovida Networks, Inc., please see

 * <http://www.vovida.org/>.

 *

 */