/administrator/includes/pcl/pcltar.lib.php

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<?php
/**
* @version $Id: pcltar.lib.php 10381 2008-06-01 03:35:53Z pasamio $
* @package		Joomla
*/


// --------------------------------------------------------------------------------
// PhpConcept Library - Tar Module 1.3
// --------------------------------------------------------------------------------
// License GNU/GPL - Vincent Blavet - August 2001
// http://www.phpconcept.net
// --------------------------------------------------------------------------------
//
// Presentation :
//	PclTar is a library that allow you to create a GNU TAR + GNU ZIP archive,
//	to add files or directories, to extract all the archive or a part of it.
//	So far tests show that the files generated by PclTar are readable by
//	gzip tools and WinZip application.
//
// Description :
//	See readme.txt (English & Fran�ais) and http://www.phpconcept.net
//
// Warning :
//	This library and the associated files are non commercial, non professional
//	work.
//	It should not have unexpected results. However if any damage is caused by
//	this software the author can not be responsible.
//	The use of this software is at the risk of the user.
//
// --------------------------------------------------------------------------------

// ----- Look for double include
if (!defined("PCL_TAR"))
{
  define( "PCL_TAR", 1 );

  // ----- Error codes
  //	-1 : Unable to open file in binary write mode
  //	-2 : Unable to open file in binary read mode
  //	-3 : Invalid parameters
  //	-4 : File does not exist
  //	-5 : Filename is too long (max. 99)
  //	-6 : Not a valid tar file
  //	-7 : Invalid extracted file size
  //	-8 : Unable to create directory
  //	-9 : Invalid archive extension
  //  -10 : Invalid archive format
  //  -11 : Unable to delete file (unlink)
  //  -12 : Unable to rename file (rename)
  //  -13 : Invalid header checksum


// --------------------------------------------------------------------------------
// ***** UNDER THIS LINE NOTHING NEEDS TO BE MODIFIED *****
// --------------------------------------------------------------------------------

  // ----- Global variables
  $g_pcltar_version = "1.3";

  // ----- Include other libraries
  // This library should be called by each script before the include of PhpZip
  // Library in order to limit the potential 'lib' directory path problem.

  if (!defined("PCLERROR_LIB"))
  {
	include(dirname(__FILE__).DIRECTORY_SEPARATOR.'pclerror.lib.php');
  }
  if (!defined("PCLTRACE_LIB"))
  {
	include(dirname(__FILE__).DIRECTORY_SEPARATOR.'pcltrace.lib.php');
  }

  // --------------------------------------------------------------------------------
  // Function : PclTarCreate()
  // Description :
  //	Creates a new archive with name $p_tarname containing the files and/or
  //	directories indicated in $p_list. If the tar filename extension is
  //	".tar", the file will not be compressed. If it is ".tar.gz" or ".tgz"
  //	it will be a gzip compressed tar archive.
  //	If you want to use an other extension, you must indicate the mode in
  //	$p_mode ("tar" or "tgz").
  //	$p_add_dir and $p_remove_dir give you the ability to store a path
  //	which is not the real path of the files.
  // Parameters :
  //	$p_tarname : Name of an existing tar file
  //	$p_filelist : An array containing file or directory names, or
  //				 a string containing one filename or directory name, or
  //				 a string containing a list of filenames and/or directory
  //				 names separated by spaces.
  //	$p_mode : "tar" for normal tar archive, "tgz" for gzipped tar archive,
  //			 if $p_mode is not specified, it will be determined by the extension.
  //	$p_add_dir : Path to add in the filename path archived
  //	$p_remove_dir : Path to remove in the filename path archived
  // Return Values :
  //	1 on success, or an error code (see table at the beginning).
  // --------------------------------------------------------------------------------
  function PclTarCreate($p_tarname, $p_filelist="", $p_mode="", $p_add_dir="", $p_remove_dir="")
  {
	TrFctStart(__FILE__, __LINE__, "PclTarCreate", "tar=$p_tarname, file='$p_filelist', mode=$p_mode, add_dir='$p_add_dir', remove_dir='$p_remove_dir'");
	$v_result=1;

	// ----- Look for default mode
	if (($p_mode == "") || (($p_mode!="tar") && ($p_mode!="tgz")))
	{
	  // ----- Extract the tar format from the extension
	  if (($p_mode = PclTarHandleExtension($p_tarname)) == "")
	  {
		// ----- Return
		TrFctEnd(__FILE__, __LINE__, PclErrorCode(), PclErrorString());
		return PclErrorCode();
	  }

	  // ----- Trace
	  TrFctMessage(__FILE__, __LINE__, 1, "Auto mode selected : found $p_mode");
	}

	// ----- Look if the $p_filelist is really an array
	if (is_array($p_filelist))
	{
	  // ----- Call the create fct
	  $v_result = PclTarHandleCreate($p_tarname, $p_filelist, $p_mode, $p_add_dir, $p_remove_dir);
	}

	// ----- Look if the $p_filelist is a string
	else if (is_string($p_filelist))
	{
	  // ----- Create a list with the elements from the string
	  $v_list = explode(" ", $p_filelist);

	  // ----- Call the create fct
	  $v_result = PclTarHandleCreate($p_tarname, $v_list, $p_mode, $p_add_dir, $p_remove_dir);
	}

	// ----- Invalid variable
	else
	{
	  // ----- Error log
	  PclErrorLog(-3, "Invalid variable type p_filelist");
	  $v_result = -3;
	}

	// ----- Return
	TrFctEnd(__FILE__, __LINE__, $v_result);
	return $v_result;
  }
  // --------------------------------------------------------------------------------

  // --------------------------------------------------------------------------------
  // Function : PclTarAdd()
  // Description :
  //	PLEASE DO NOT USE ANY MORE THIS FUNCTION. Use PclTarAddList().
  //
  //	This function is maintained only for compatibility reason
  //
  // Parameters :
  //	$p_tarname : Name of an existing tar file
  //	$p_filelist : An array containing file or directory names, or
  //				 a string containing one filename or directory name, or
  //				 a string containing a list of filenames and/or directory
  //				 names separated by spaces.
  // Return Values :
  //	1 on success,
  //	Or an error code (see list on top).
  // --------------------------------------------------------------------------------
  function PclTarAdd($p_tarname, $p_filelist)
  {
	TrFctStart(__FILE__, __LINE__, "PclTarAdd", "tar=$p_tarname, file=$p_filelist");
	$v_result=1;
	$v_list_detail = array();

	// ----- Extract the tar format from the extension
	if (($p_mode = PclTarHandleExtension($p_tarname)) == "")
	{
	  // ----- Return
	  TrFctEnd(__FILE__, __LINE__, PclErrorCode(), PclErrorString());
	  return PclErrorCode();
	}

	// ----- Look if the $p_filelist is really an array
	if (is_array($p_filelist))
	{
	  // ----- Call the add fct
	  $v_result = PclTarHandleAppend($p_tarname, $p_filelist, $p_mode, $v_list_detail, "", "");
	}

	// ----- Look if the $p_filelist is a string
	else if (is_string($p_filelist))
	{
	  // ----- Create a list with the elements from the string
	  $v_list = explode(" ", $p_filelist);

	  // ----- Call the add fct
	  $v_result = PclTarHandleAppend($p_tarname, $v_list, $p_mode, $v_list_detail, "", "");
	}

	// ----- Invalid variable
	else
	{
	  // ----- Error log
	  PclErrorLog(-3, "Invalid variable type p_filelist");
	  $v_result = -3;
	}

	// ----- Cleaning
	unset($v_list_detail);

	// ----- Return
	TrFctEnd(__FILE__, __LINE__, $v_result);
	return $v_result;
  }
  // --------------------------------------------------------------------------------

  // --------------------------------------------------------------------------------
  // Function : PclTarAddList()
  // Description :
  //	Add a list of files or directories ($p_filelist) in the tar archive $p_tarname.
  //	The list can be an array of file/directory names or a string with names
  //	separated by one space.
  //	$p_add_dir and $p_remove_dir will give the ability to memorize a path which is
  //	different from the real path of the file. This is usefull if you want to have PclTar
  //	running in any directory, and memorize relative path from an other directory.
  //	If $p_mode is not set it will be automatically computed from the $p_tarname
  //	extension (.tar, .tar.gz or .tgz).
  // Parameters :
  //	$p_tarname : Name of an existing tar file
  //	$p_filelist : An array containing file or directory names, or
  //				 a string containing one filename or directory name, or
  //				 a string containing a list of filenames and/or directory
  //				 names separated by spaces.
  //	$p_add_dir : Path to add in the filename path archived
  //	$p_remove_dir : Path to remove in the filename path archived
  //	$p_mode : 'tar' or 'tgz', if not set, will be determined by $p_tarname extension
  // Return Values :
  //	1 on success,
  //	Or an error code (see list on top).
  // --------------------------------------------------------------------------------
  function PclTarAddList($p_tarname, $p_filelist, $p_add_dir="", $p_remove_dir="", $p_mode="")
  {
	TrFctStart(__FILE__, __LINE__, "PclTarAddList", "tar=$p_tarname, file=$p_filelist, p_add_dir='$p_add_dir', p_remove_dir='$p_remove_dir', mode=$p_mode");
	$v_result=1;
	$p_list_detail = array();

	// ----- Extract the tar format from the extension
	if (($p_mode == "") || (($p_mode!="tar") && ($p_mode!="tgz")))
	{
	  if (($p_mode = PclTarHandleExtension($p_tarname)) == "")
	  {
		// ----- Return
		TrFctEnd(__FILE__, __LINE__, PclErrorCode(), PclErrorString());
		return PclErrorCode();
	  }
	}

	// ----- Look if the $p_filelist is really an array
	if (is_array($p_filelist))
	{
	  // ----- Call the add fct
	  $v_result = PclTarHandleAppend($p_tarname, $p_filelist, $p_mode, $p_list_detail, $p_add_dir, $p_remove_dir);
	}

	// ----- Look if the $p_filelist is a string
	else if (is_string($p_filelist))
	{
	  // ----- Create a list with the elements from the string
	  $v_list = explode(" ", $p_filelist);

	  // ----- Call the add fct
	  $v_result = PclTarHandleAppend($p_tarname, $v_list, $p_mode, $p_list_detail, $p_add_dir, $p_remove_dir);
	}

	// ----- Invalid variable
	else
	{
	  // ----- Error log
	  PclErrorLog(-3, "Invalid variable type p_filelist");
	  $v_result = -3;
	}

	// ----- Return
	if ($v_result != 1)
	{
	  TrFctEnd(__FILE__, __LINE__, 0);
	  return 0;
	}
	TrFctEnd(__FILE__, __LINE__, $p_list_detail);
	return $p_list_detail;
  }
  // --------------------------------------------------------------------------------

  // --------------------------------------------------------------------------------
  // Function : PclTarList()
  // Description :
  //	Gives the list of all the files present in the tar archive $p_tarname.
  //	The list is the function result, it will be 0 on error.
  //	Depending on the $p_tarname extension (.tar, .tar.gz or .tgz) the
  //	function will determine the type of the archive.
  // Parameters :
  //	$p_tarname : Name of an existing tar file
  //	$p_mode : 'tar' or 'tgz', if not set, will be determined by $p_tarname extension
  // Return Values :
  //  0 on error (Use PclErrorCode() and PclErrorString() for more info)
  //  or
  //  An array containing file properties. Each file properties is an array of
  //  properties.
  //  The properties (array field names) are :
  //	filename, size, mode, uid, gid, mtime, typeflag, status
  //  Exemple : $v_list = PclTarList("my.tar");
  //			for ($i=0; $i<sizeof($v_list); $i++)
  //			  echo "Filename :'".$v_list[$i][filename]."'<br>";
  // --------------------------------------------------------------------------------
  function PclTarList($p_tarname, $p_mode="")
  {
	TrFctStart(__FILE__, __LINE__, "PclTarList", "tar=$p_tarname, mode='$p_mode'");
	$v_result=1;

	// ----- Extract the tar format from the extension
	if (($p_mode == "") || (($p_mode!="tar") && ($p_mode!="tgz")))
	{
	  if (($p_mode = PclTarHandleExtension($p_tarname)) == "")
	  {
		// ----- Return
		TrFctEnd(__FILE__, __LINE__, PclErrorCode(), PclErrorString());
		return 0;
	  }
	}

	// ----- Call the extracting fct
	$p_list = array();
	if (($v_result = PclTarHandleExtract($p_tarname, 0, $p_list, "list", "", $p_mode, "")) != 1)
	{
	  unset($p_list);
	  TrFctEnd(__FILE__, __LINE__, 0, PclErrorString());
	  return(0);
	}

	// ----- Return
	TrFctEnd(__FILE__, __LINE__, $p_list);
	return $p_list;
  }
  // --------------------------------------------------------------------------------

  // --------------------------------------------------------------------------------
  // Function : PclTarExtract()
  // Description :
  //	Extract all the files present in the archive $p_tarname, in the directory
  //	$p_path. The relative path of the archived files are keep and become
  //	relative to $p_path.
  //	If a file with the same name already exists it will be replaced.
  //	If the path to the file does not exist, it will be created.
  //	Depending on the $p_tarname extension (.tar, .tar.gz or .tgz) the
  //	function will determine the type of the archive.
  // Parameters :
  //	$p_tarname : Name of an existing tar file.
  //	$p_path : Path where the files will be extracted. The files will use
  //			 their memorized path from $p_path.
  //			 If $p_path is "", files will be extracted in "./".
  //	$p_remove_path : Path to remove (from the file memorized path) while writing the
  //					extracted files. If the path does not match the file path,
  //					the file is extracted with its memorized path.
  //					$p_path and $p_remove_path are commulative.
  //	$p_mode : 'tar' or 'tgz', if not set, will be determined by $p_tarname extension
  // Return Values :
  //	Same as PclTarList()
  // --------------------------------------------------------------------------------
  function PclTarExtract($p_tarname, $p_path="./", $p_remove_path="", $p_mode="")
  {
	TrFctStart(__FILE__, __LINE__, "PclTarExtract", "tar='$p_tarname', path='$p_path', remove_path='$p_remove_path', mode='$p_mode'");
	$v_result=1;

	// ----- Extract the tar format from the extension
	if (($p_mode == "") || (($p_mode!="tar") && ($p_mode!="tgz")))
	{
	  if (($p_mode = PclTarHandleExtension($p_tarname)) == "")
	  {
		// ----- Return
		TrFctEnd(__FILE__, __LINE__, PclErrorCode(), PclErrorString());
		return 0;
	  }
	}

	// ----- Call the extracting fct
	if (($v_result = PclTarHandleExtract($p_tarname, 0, $p_list, "complete", $p_path, $p_mode, $p_remove_path)) != 1)
	{
	  TrFctEnd(__FILE__, __LINE__, 0, PclErrorString());
	  return(0);
	}

	// ----- Return
	TrFctEnd(__FILE__, __LINE__, $p_list);
	return $p_list;
  }
  // --------------------------------------------------------------------------------

  // --------------------------------------------------------------------------------
  // Function : PclTarExtractList()
  // Description :
  //	Extract the files present in the archive $p_tarname and specified in
  //	$p_filelist, in the directory
  //	$p_path. The relative path of the archived files are keep and become
  //	relative to $p_path.
  //	If a directory is sp�cified in the list, all the files from this directory
  //	will be extracted.
  //	If a file with the same name already exists it will be replaced.
  //	If the path to the file does not exist, it will be created.
  //	Depending on the $p_tarname extension (.tar, .tar.gz or .tgz) the
  //	function will determine the type of the archive.
  // Parameters :
  //	$p_tarname : Name of an existing tar file
  //	$p_filelist : An array containing file or directory names, or
  //				 a string containing one filename or directory name, or
  //				 a string containing a list of filenames and/or directory
  //				 names separated by spaces.
  //	$p_path : Path where the files will be extracted. The files will use
  //			 their memorized path from $p_path.
  //			 If $p_path is "", files will be extracted in "./".
  //	$p_remove_path : Path to remove (from the file memorized path) while writing the
  //					extracted files. If the path does not match the file path,
  //					the file is extracted with its memorized path.
  //					$p_path and $p_remove_path are commulative.
  //	$p_mode : 'tar' or 'tgz', if not set, will be determined by $p_tarname extension
  // Return Values :
  //	Same as PclTarList()
  // --------------------------------------------------------------------------------
  function PclTarExtractList($p_tarname, $p_filelist, $p_path="./", $p_remove_path="", $p_mode="")
  {
	TrFctStart(__FILE__, __LINE__, "PclTarExtractList", "tar=$p_tarname, list, path=$p_path, remove_path='$p_remove_path', mode='$p_mode'");
	$v_result=1;

	// ----- Extract the tar format from the extension
	if (($p_mode == "") || (($p_mode!="tar") && ($p_mode!="tgz")))
	{
	  if (($p_mode = PclTarHandleExtension($p_tarname)) == "")
	  {
		// ----- Return
		TrFctEnd(__FILE__, __LINE__, PclErrorCode(), PclErrorString());
		return 0;
	  }
	}

	// ----- Look if the $p_filelist is really an array
	if (is_array($p_filelist))
	{
	  // ----- Call the extracting fct
	  if (($v_result = PclTarHandleExtract($p_tarname, $p_filelist, $p_list, "partial", $p_path, $v_tar_mode, $p_remove_path)) != 1)
	  {
		TrFctEnd(__FILE__, __LINE__, 0, PclErrorString());
		return(0);
	  }
	}

	// ----- Look if the $p_filelist is a string
	else if (is_string($p_filelist))
	{
	  // ----- Create a list with the elements from the string
	  $v_list = explode(" ", $p_filelist);

	  // ----- Call the extracting fct
	  if (($v_result = PclTarHandleExtract($p_tarname, $v_list, $p_list, "partial", $p_path, $v_tar_mode, $p_remove_path)) != 1)
	  {
		TrFctEnd(__FILE__, __LINE__, 0, PclErrorString());
		return(0);
	  }
	}

	// ----- Invalid variable
	else
	{
	  // ----- Error log
	  PclErrorLog(-3, "Invalid variable type p_filelist");

	  // ----- Return
	  TrFctEnd(__FILE__, __LINE__, PclErrorCode(), PclErrorString());
	  return 0;
	}

	// ----- Return
	TrFctEnd(__FILE__, __LINE__, $p_list);
	return $p_list;
  }
  // --------------------------------------------------------------------------------

  // --------------------------------------------------------------------------------
  // Function : PclTarExtractIndex()
  // Description :
  //	Extract the files present in the archive $p_tarname and specified at
  //	the indexes in $p_index, in the directory
  //	$p_path. The relative path of the archived files are keep and become
  //	relative to $p_path.
  //	If a directory is specified in the list, the directory only is created. All
  //	the file stored in this archive for this directory
  //	are not extracted.
  //	If a file with the same name already exists it will be replaced.
  //	If the path to the file does not exist, it will be created.
  //	Depending on the $p_tarname extension (.tar, .tar.gz or .tgz) the
  //	function will determine the type of the archive.
  // Parameters :
  //	$p_tarname : Name of an existing tar file
  //	$p_index : A single index (integer) or a string of indexes of files to
  //			  extract. The form of the string is "0,4-6,8-12" with only numbers
  //			  and '-' for range or ',' to separate ranges. No spaces or ';'
  //			  are allowed.
  //	$p_path : Path where the files will be extracted. The files will use
  //			 their memorized path from $p_path.
  //			 If $p_path is "", files will be extracted in "./".
  //	$p_remove_path : Path to remove (from the file memorized path) while writing the
  //					extracted files. If the path does not match the file path,
  //					the file is extracted with its memorized path.
  //					$p_path and $p_remove_path are commulative.
  //	$p_mode : 'tar' or 'tgz', if not set, will be determined by $p_tarname extension
  // Return Values :
  //	Same as PclTarList()
  // --------------------------------------------------------------------------------
  function PclTarExtractIndex($p_tarname, $p_index, $p_path="./", $p_remove_path="", $p_mode="")
  {
	TrFctStart(__FILE__, __LINE__, "PclTarExtractIndex", "tar=$p_tarname, index='$p_index', path=$p_path, remove_path='$p_remove_path', mode='$p_mode'");
	$v_result=1;

	// ----- Extract the tar format from the extension
	if (($p_mode == "") || (($p_mode!="tar") && ($p_mode!="tgz")))
	{
	  if (($p_mode = PclTarHandleExtension($p_tarname)) == "")
	  {
		// ----- Return
		TrFctEnd(__FILE__, __LINE__, PclErrorCode(), PclErrorString());
		return 0;
	  }
	}

	// ----- Look if the $p_index is really an integer
	if (is_integer($p_index))
	{
	  // ----- Call the extracting fct
	  if (($v_result = PclTarHandleExtractByIndexList($p_tarname, "$p_index", $p_list, $p_path, $p_remove_path, $v_tar_mode)) != 1)
	  {
		TrFctEnd(__FILE__, __LINE__, 0, PclErrorString());
		return(0);
	  }
	}

	// ----- Look if the $p_filelist is a string
	else if (is_string($p_index))
	{
	  // ----- Call the extracting fct
	  if (($v_result = PclTarHandleExtractByIndexList($p_tarname, $p_index, $p_list, $p_path, $p_remove_path, $v_tar_mode)) != 1)
	  {
		TrFctEnd(__FILE__, __LINE__, 0, PclErrorString());
		return(0);
	  }
	}

	// ----- Invalid variable
	else
	{
	  // ----- Error log
	  PclErrorLog(-3, "Invalid variable type $p_index");

	  // ----- Return
	  TrFctEnd(__FILE__, __LINE__, PclErrorCode(), PclErrorString());
	  return 0;
	}

	// ----- Return
	TrFctEnd(__FILE__, __LINE__, $p_list);
	return $p_list;
  }
  // --------------------------------------------------------------------------------

  // --------------------------------------------------------------------------------
  // Function : PclTarDelete()
  // Description :
  //	This function deletes from the archive $p_tarname the files which are listed
  //	in $p_filelist. $p_filelist can be a string with file names separated by
  //	spaces, or an array containing the file names.
  // Parameters :
  //	$p_tarname : Name of an existing tar file
  //	$p_filelist : An array or a string containing file names to remove from the
  //				 archive.
  //	$p_mode : 'tar' or 'tgz', if not set, will be determined by $p_tarname extension
  // Return Values :
  //	List of the files which are kept in the archive (same format as PclTarList())
  // --------------------------------------------------------------------------------
  function PclTarDelete($p_tarname, $p_filelist, $p_mode="")
  {
	TrFctStart(__FILE__, __LINE__, "PclTarDelete", "tar='$p_tarname', list='$p_filelist', mode='$p_mode'");
	$v_result=1;

	// ----- Extract the tar format from the extension
	if (($p_mode == "") || (($p_mode!="tar") && ($p_mode!="tgz")))
	{
	  if (($p_mode = PclTarHandleExtension($p_tarname)) == "")
	  {
		// ----- Return
		TrFctEnd(__FILE__, __LINE__, PclErrorCode(), PclErrorString());
		return 0;
	  }
	}

	// ----- Look if the $p_filelist is really an array
	if (is_array($p_filelist))
	{
	  // ----- Call the extracting fct
	  if (($v_result = PclTarHandleDelete($p_tarname, $p_filelist, $p_list, $p_mode)) != 1)
	  {
		TrFctEnd(__FILE__, __LINE__, 0, PclErrorString());
		return(0);
	  }
	}

	// ----- Look if the $p_filelist is a string
	else if (is_string($p_filelist))
	{
	  // ----- Create a list with the elements from the string
	  $v_list = explode(" ", $p_filelist);

	  // ----- Call the extracting fct
	  if (($v_result = PclTarHandleDelete($p_tarname, $v_list, $p_list, $p_mode)) != 1)
	  {
		TrFctEnd(__FILE__, __LINE__, 0, PclErrorString());
		return(0);
	  }
	}

	// ----- Invalid variable
	else
	{
	  // ----- Error log
	  PclErrorLog(-3, "Invalid variable type p_filelist");

	  // ----- Return
	  TrFctEnd(__FILE__, __LINE__, PclErrorCode(), PclErrorString());
	  return 0;
	}

	// ----- Return
	TrFctEnd(__FILE__, __LINE__, $p_list);
	return $p_list;
  }
  // --------------------------------------------------------------------------------

  // --------------------------------------------------------------------------------
  // Function : PclTarUpdate()
  // Description :
  //	This function updates the files in $p_filelist which are already in the
  //	$p_tarname archive with an older last modified date. If the file does not
  //	exist, it is added at the end of the archive.
  // Parameters :
  //	$p_tarname : Name of an existing tar file
  //	$p_filelist : An array or a string containing file names to update from the
  //				 archive.
  //	$p_mode : 'tar' or 'tgz', if not set, will be determined by $p_tarname extension
  // Return Values :
  //	List of the files contained in the archive. The field status contains
  //	"updated", "not_updated", "added" or "ok" for the files not concerned.
  // --------------------------------------------------------------------------------
  function PclTarUpdate($p_tarname, $p_filelist, $p_mode="", $p_add_dir="", $p_remove_dir="")
  {
	TrFctStart(__FILE__, __LINE__, "PclTarUpdate", "tar='$p_tarname', list='$p_filelist', mode='$p_mode'");
	$v_result=1;

	// ----- Extract the tar format from the extension
	if (($p_mode == "") || (($p_mode!="tar") && ($p_mode!="tgz")))
	{
	  if (($p_mode = PclTarHandleExtension($p_tarname)) == "")
	  {
		// ----- Return
		TrFctEnd(__FILE__, __LINE__, PclErrorCode(), PclErrorString());
		return 0;
	  }
	}

	// ----- Look if the $p_filelist is really an array
	if (is_array($p_filelist))
	{
	  // ----- Call the extracting fct
	  if (($v_result = PclTarHandleUpdate($p_tarname, $p_filelist, $p_list, $p_mode, $p_add_dir, $p_remove_dir)) != 1)
	  {
		TrFctEnd(__FILE__, __LINE__, 0, PclErrorString());
		return(0);
	  }
	}

	// ----- Look if the $p_filelist is a string
	else if (is_string($p_filelist))
	{
	  // ----- Create a list with the elements from the string
	  $v_list = explode(" ", $p_filelist);

	  // ----- Call the extracting fct
	  if (($v_result = PclTarHandleUpdate($p_tarname, $v_list, $p_list, $p_mode, $p_add_dir, $p_remove_dir)) != 1)
	  {
		TrFctEnd(__FILE__, __LINE__, 0, PclErrorString());
		return(0);
	  }
	}

	// ----- Invalid variable
	else
	{
	  // ----- Error log
	  PclErrorLog(-3, "Invalid variable type p_filelist");

	  // ----- Return
	  TrFctEnd(__FILE__, __LINE__, PclErrorCode(), PclErrorString());
	  return 0;
	}

	// ----- Return
	TrFctEnd(__FILE__, __LINE__, $p_list);
	return $p_list;
  }
  // --------------------------------------------------------------------------------


  // --------------------------------------------------------------------------------
  // Function : PclTarMerge()
  // Description :
  //	This function add the content of $p_tarname_add at the end of $p_tarname.
  // Parameters :
  //	$p_tarname : Name of an existing tar file
  //	$p_tarname_add : Name of an existing tar file taht will be added at the end
  //					of $p_tarname.
  //	$p_mode : 'tar' or 'tgz', if not set, will be determined by $p_tarname extension
  //	$p_mode_add : 'tar' or 'tgz', if not set, will be determined by $p_tarname_add
  //				 extension
  // Return Values :
  //	List of the files contained in the archive. The field status contains
  //	"updated", "not_updated", "added" or "ok" for the files not concerned.
  // --------------------------------------------------------------------------------
  function PclTarMerge($p_tarname, $p_tarname_add, $p_mode="", $p_mode_add="")
  {
	TrFctStart(__FILE__, __LINE__, "PclTarMerge", "tar='$p_tarname', tar_add='$p_tarname_add', mode='$p_mode', mode_add='$p_mode_add'");
	$v_result=1;

	// ----- Check the parameters
	if (($p_tarname == "") || ($p_tarname_add == ""))
	{
	  // ----- Error log
	  PclErrorLog(-3, "Invalid empty archive name");

	  // ----- Return
	  TrFctEnd(__FILE__, __LINE__, PclErrorCode(), PclErrorString());
	  return PclErrorCode();
	}

	// ----- Extract the tar format from the extension
	if (($p_mode == "") || (($p_mode!="tar") && ($p_mode!="tgz")))
	{
	  if (($p_mode = PclTarHandleExtension($p_tarname)) == "")
	  {
		// ----- Return
		TrFctEnd(__FILE__, __LINE__, PclErrorCode(), PclErrorString());
		return 0;
	  }
	}
	if (($p_mode_add == "") || (($p_mode_add!="tar") && ($p_mode_add!="tgz")))
	{
	  if (($p_mode_add = PclTarHandleExtension($p_tarname_add)) == "")
	  {
		// ----- Return
		TrFctEnd(__FILE__, __LINE__, PclErrorCode(), PclErrorString());
		return 0;
	  }
	}

	// ----- Clear filecache
	clearstatcache();

	// ----- Check the file size
	if ((!is_file($p_tarname)) ||
		(((($v_size = filesize($p_tarname)) % 512) != 0) && ($p_mode=="tar")))
	{
	  // ----- Error log
	  if (!is_file($p_tarname))
		PclErrorLog(-4, "Archive '$p_tarname' does not exist");
	  else
		PclErrorLog(-6, "Archive '$p_tarname' has invalid size ".filesize($p_tarname)."(not a 512 block multiple)");

	  // ----- Return
	  TrFctEnd(__FILE__, __LINE__, PclErrorCode(), PclErrorString());
	  return PclErrorCode();
	}
	if ((!is_file($p_tarname_add)) ||
		(((($v_size_add = filesize($p_tarname_add)) % 512) != 0) && ($p_mode_add=="tar")))
	{
	  // ----- Error log
	  if (!is_file($p_tarname_add))
		PclErrorLog(-4, "Archive '$p_tarname_add' does not exist");
	  else
		PclErrorLog(-6, "Archive '$p_tarname_add' has invalid size ".filesize($p_tarname_add)."(not a 512 block multiple)");

	  // ----- Return
	  TrFctEnd(__FILE__, __LINE__, PclErrorCode(), PclErrorString());
	  return PclErrorCode();
	}

	// ----- Look for compressed archive
	if ($p_mode == "tgz")
	{
	  // ----- Open the file in read mode
	  if (($p_tar = @gzopen($p_tarname, "rb")) == 0)
	  {
		// ----- Error log
		PclErrorLog(-2, "Unable to open file '$p_tarname' in binary read mode");

		// ----- Return
		TrFctEnd(__FILE__, __LINE__, PclErrorCode(), PclErrorString());
		return PclErrorCode();
	  }

	  // ----- Open a temporary file in write mode
	  $v_temp_tarname = uniqid("pcltar-").".tmp";
	  TrFctMessage(__FILE__, __LINE__, 2, "Creating temporary archive file $v_temp_tarname");
	  if (($v_temp_tar = @gzopen($v_temp_tarname, "wb")) == 0)
	  {
		// ----- Close tar file
		gzclose($p_tar);

		// ----- Error log
		PclErrorLog(-1, "Unable to open file '$v_temp_tarname' in binary write mode");

		// ----- Return
		TrFctEnd(__FILE__, __LINE__, PclErrorCode(), PclErrorString());
		return PclErrorCode();
	  }

	  // ----- Read the first 512 bytes block
	  $v_buffer = gzread($p_tar, 512);

	  // ----- Read the following blocks but not the last one
	  if (!gzeof($p_tar))
	  {
		TrFctMessage(__FILE__, __LINE__, 3, "More than one 512 block file");
		$i=1;

		// ----- Read new 512 block and write the already read
		do{
		  // ----- Write the already read block
		  $v_binary_data = pack("a512", "$v_buffer");
		  gzputs($v_temp_tar, $v_binary_data);

		  $i++;
		  TrFctMessage(__FILE__, __LINE__, 3, "Reading block $i");

		  // ----- Read next block
		  $v_buffer = gzread($p_tar, 512);

		} while (!gzeof($p_tar));

		TrFctMessage(__FILE__, __LINE__, 3, "$i 512 bytes blocks");
	  }
	}

	// ----- Look for uncompressed tar file
	else if ($p_mode=="tar")
	{
	  // ----- Open the tar file
	  if (($p_tar = fopen($p_tarname, "r+b")) == 0)
	  {
		// ----- Error log
		PclErrorLog(-1, "Unable to open file '$p_tarname' in binary write mode");

		// ----- Return
		TrFctEnd(__FILE__, __LINE__, PclErrorCode(), PclErrorString());
		return PclErrorCode();
	  }

	  // ----- Go to the beginning of last block
	  TrFctMessage(__FILE__, __LINE__, 4, "Position before :".($p_mode=="tar"?ftell($p_tar):gztell($p_tar)));
	  fseek($p_tar, $v_size-512);
	  TrFctMessage(__FILE__, __LINE__, 4, "Position after :".($p_mode=="tar"?ftell($p_tar):gztell($p_tar)));
	}

	// ----- Look for unknown type
	else
	{
	  // ----- Error log
	  PclErrorLog(-3, "Invalid tar mode $p_mode");

	  // ----- Return
	  TrFctEnd(__FILE__, __LINE__, PclErrorCode(), PclErrorString());
	  return PclErrorCode();
	}

	// ----- Look for type of archive to add
	if ($p_mode_add == "tgz")
	{
	  TrFctMessage(__FILE__, __LINE__, 4, "Opening file $p_tarname_add");

	  // ----- Open the file in read mode
	  if (($p_tar_add = @gzopen($p_tarname_add, "rb")) == 0)
	  {
		// ----- Error log
		PclErrorLog(-2, "Unable to open file '$p_tarname_add' in binary read mode");

		// ----- Return
		TrFctEnd(__FILE__, __LINE__, PclErrorCode(), PclErrorString());
		return PclErrorCode();
	  }

	  // ----- Read the first 512 bytes block
	  $v_buffer = gzread($p_tar_add, 512);

	  // ----- Read the following blocks but not the last one
	  if (!gzeof($p_tar_add))
	  {
		TrFctMessage(__FILE__, __LINE__, 3, "More than one 512 block file");
		$i=1;

		// ----- Read new 512 block and write the already read
		do{
		  // ----- Write the already read block
		  $v_binary_data = pack("a512", "$v_buffer");
		  if ($p_mode=="tar")
			fputs($p_tar, $v_binary_data);
		  else
			gzputs($v_temp_tar, $v_binary_data);

		  $i++;
		  TrFctMessage(__FILE__, __LINE__, 3, "Reading block $i");

		  // ----- Read next block
		  $v_buffer = gzread($p_tar_add, 512);

		} while (!gzeof($p_tar_add));

		TrFctMessage(__FILE__, __LINE__, 3, "$i 512 bytes blocks");
	  }

	  // ----- Close the files
	  gzclose($p_tar_add);
	}

	// ----- Look for uncompressed tar file
	else if ($p_mode=="tar")
	{
	  // ----- Open the file in read mode
	  if (($p_tar_add = @fopen($p_tarname_add, "rb")) == 0)
	  {
		// ----- Error log
		PclErrorLog(-2, "Unable to open file '$p_tarname_add' in binary read mode");

		// ----- Return
		TrFctEnd(__FILE__, __LINE__, PclErrorCode(), PclErrorString());
		return PclErrorCode();
	  }

	  // ----- Read the first 512 bytes block
	  $v_buffer = fread($p_tar_add, 512);

	  // ----- Read the following blocks but not the last one
	  if (!feof($p_tar_add))
	  {
		TrFctMessage(__FILE__, __LINE__, 3, "More than one 512 block file");
		$i=1;

		// ----- Read new 512 block and write the already read
		do{
		  // ----- Write the already read block
		  $v_binary_data = pack("a512", "$v_buffer");
		  if ($p_mode=="tar")
			fputs($p_tar, $v_binary_data);
		  else
			gzputs($v_temp_tar, $v_binary_data);

		  $i++;
		  TrFctMessage(__FILE__, __LINE__, 3, "Reading block $i");

		  // ----- Read next block
		  $v_buffer = fread($p_tar_add, 512);

		} while (!feof($p_tar_add));

		TrFctMessage(__FILE__, __LINE__, 3, "$i 512 bytes blocks");
	  }

	  // ----- Close the files
	  fclose($p_tar_add);
	}

	// ----- Call the footer of the tar archive
	$v_result = PclTarHandleFooter($p_tar, $p_mode);

	// ----- Look for closing compressed archive
	if ($p_mode == "tgz")
	{
	  // ----- Close the files
	  gzclose($p_tar);
	  gzclose($v_temp_tar);

	  // ----- Unlink tar file
	  if (!@unlink($p_tarname))
	  {
		// ----- Error log
		PclErrorLog(-11, "Error while deleting archive name $p_tarname");
	  }

	  // ----- Rename tar file
	  if (!@rename($v_temp_tarname, $p_tarname))
	  {
		// ----- Error log
		PclErrorLog(-12, "Error while renaming temporary file $v_temp_tarname to archive name $p_tarname");

		// ----- Return
		TrFctEnd(__FILE__, __LINE__, PclErrorCode(), PclErrorString());
		return PclErrorCode();
	  }

	  // ----- Return
	  TrFctEnd(__FILE__, __LINE__, $v_result);
	  return $v_result;
	}

	// ----- Look for closing uncompressed tar file
	else if ($p_mode=="tar")
	{
	  // ----- Close the tarfile
	  fclose($p_tar);
	}

	// ----- Return
	TrFctEnd(__FILE__, __LINE__, $v_result);
	return $v_result;
  }
  // --------------------------------------------------------------------------------


// --------------------------------------------------------------------------------
// ***** UNDER THIS LINE ARE DEFINED PRIVATE INTERNAL FUNCTIONS *****
// *****														*****
// *****		THESES FUNCTIONS MUST NOT BE USED DIRECTLY		*****
// --------------------------------------------------------------------------------



  // --------------------------------------------------------------------------------
  // Function : PclTarHandleCreate()
  // Description :
  // Parameters :
  //	$p_tarname : Name of the tar file
  //	$p_list : An array containing the file or directory names to add in the tar
  //	$p_mode : "tar" for normal tar archive, "tgz" for gzipped tar archive
  // Return Values :
  // --------------------------------------------------------------------------------
  function PclTarHandleCreate($p_tarname, $p_list, $p_mode, $p_add_dir="", $p_remove_dir="")
  {
	TrFctStart(__FILE__, __LINE__, "PclTarHandleCreate", "tar=$p_tarname, list, mode=$p_mode, add_dir='$p_add_dir', remove_dir='$p_remove_dir'");
	$v_result=1;
	$v_list_detail = array();

	// ----- Check the parameters
	if (($p_tarname == "") || (($p_mode != "tar") && ($p_mode != "tgz")))
	{
	  // ----- Error log
	  if ($p_tarname == "")
		PclErrorLog(-3, "Invalid empty archive name");
	  else
		PclErrorLog(-3, "Unknown mode '$p_mode'");

	  // ----- Return
	  TrFctEnd(__FILE__, __LINE__, PclErrorCode(), PclErrorString());
	  return PclErrorCode();
	}

	// ----- Look for tar file
	if ($p_mode == "tar")
	{
	  // ----- Open the tar file
	  if (($p_tar = fopen($p_tarname, "wb")) == 0)
	  {
		// ----- Error log
		PclErrorLog(-1, "Unable to open file [$p_tarname] in binary write mode");

		// ----- Return
		TrFctEnd(__FILE__, __LINE__, PclErrorCode(), PclErrorString());
		return PclErrorCode();
	  }

	  // ----- Call the adding fct inside the tar
	  if (($v_result = PclTarHandleAddList($p_tar, $p_list, $p_mode, $v_list_detail, $p_add_dir, $p_remove_dir)) == 1)
	  {
		// ----- Call the footer of the tar archive
		$v_result = PclTarHandleFooter($p_tar, $p_mode);
	  }

	  // ----- Close the tarfile
	  fclose($p_tar);
	}
	// ----- Look for tgz file
	else
	{
	  // ----- Open the tar file
	  if (($p_tar = @gzopen($p_tarname, "wb")) == 0)
	  {
		// ----- Error log
		PclErrorLog(-1, "Unable to open file [$p_tarname] in binary write mode");

		// ----- Return
		TrFctEnd(__FILE__, __LINE__, PclErrorCode(), PclErrorString());
		return PclErrorCode();
	  }

	  // ----- Call the adding fct inside the tar
	  if (($v_result = PclTarHandleAddList($p_tar, $p_list, $p_mode, $v_list_detail, $p_add_dir, $p_remove_dir)) == 1)
	  {
		// ----- Call the footer of the tar archive
		$v_result = PclTarHandleFooter($p_tar, $p_mode);
	  }

	  // ----- Close the tarfile
	  gzclose($p_tar);
	}

	// ----- Return
	TrFctEnd(__FILE__, __LINE__, $v_result);
	return $v_result;
  }
  // --------------------------------------------------------------------------------

  // --------------------------------------------------------------------------------
  // Function : PclTarHandleAppend()
  // Description :
  // Parameters :
  //	$p_tarname : Name of the tar file
  //	$p_list : An array containing the file or directory names to add in the tar
  //	$p_mode : "tar" for normal tar archive, "tgz" for gzipped tar archive
  // Return Values :
  // --------------------------------------------------------------------------------
  function PclTarHandleAppend($p_tarname, $p_list, $p_mode, &$p_list_detail, $p_add_dir, $p_remove_dir)
  {
	TrFctStart(__FILE__, __LINE__, "PclTarHandleAppend", "tar=$p_tarname, list, mode=$p_mode");
	$v_result=1;

	// ----- Check the parameters
	if ($p_tarname == "")
	{
	  // ----- Error log
	  PclErrorLog(-3, "Invalid empty archive name");

	  // ----- Return
	  TrFctEnd(__FILE__, __LINE__, PclErrorCode(), PclErrorString());
	  return PclErrorCode();
	}

	clearstatcache();

	// ----- Check the file size
	if ((!is_file($p_tarname)) ||
		(((($v_size = filesize($p_tarname)) % 512) != 0) && ($p_mode=="tar")))
	{
	  // ----- Error log
	  if (!is_file($p_tarname))
		PclErrorLog(-4, "Archive '$p_tarname' does not exist");
	  else
		PclErrorLog(-6, "Archive '$p_tarname' has invalid size ".filesize($p_tarname)."(not a 512 block multiple)");

	  // ----- Return
	  TrFctEnd(__FILE__, __LINE__, PclErrorCode(), PclErrorString());
	  return PclErrorCode();
	}

	// ----- Look for compressed archive
	if ($p_mode == "tgz")
	{
	  // ----- Open the file in read mode
	  if (($p_tar = @gzopen($p_tarname, "rb")) == 0)
	  {
		// ----- Error log
		PclErrorLog(-2, "Unable to open file '$p_tarname' in binary read mode");

		// ----- Return
		TrFctEnd(__FILE__, __LINE__, PclErrorCode(), PclErrorString());
		return PclErrorCode();
	  }

	  // ----- Open a temporary file in write mode
	  $v_temp_tarname = uniqid("pcltar-").".tmp";
	  TrFctMessage(__FILE__, __LINE__, 2, "Creating temporary archive file $v_temp_tarname");
	  if (($v_temp_tar = @gzopen($v_temp_tarname, "wb")) == 0)
	  {
		// ----- Close tar file
		gzclose($p_tar);

		// ----- Error log
		PclErrorLog(-1, "Unable to open file '$v_temp_tarname' in binary write mode");

		// ----- Return
		TrFctEnd(__FILE__, __LINE__, PclErrorCode(), PclErrorString());
		return PclErrorCode();
	  }

	  // ----- Read the first 512 bytes block
	  $v_buffer = gzread($p_tar, 512);

	  // ----- Read the following blocks but not the last one
	  if (!gzeof($p_tar))
	  {
		TrFctMessage(__FILE__, __LINE__, 3, "More than one 512 block file");
		$i=1;

		// ----- Read new 512 block and write the already read
		do{
		  // ----- Write the already read block
		  $v_binary_data = pack("a512", "$v_buffer");
		  gzputs($v_temp_tar, $v_binary_data);

		  $i++;
		  TrFctMessage(__FILE__, __LINE__, 3, "Reading block $i");

		  // ----- Read next block
		  $v_buffer = gzread($p_tar, 512);

		} while (!gzeof($p_tar));

		TrFctMessage(__FILE__, __LINE__, 3, "$i 512 bytes blocks");
	  }

	  // ----- Call the adding fct inside the tar
	  if (($v_result = PclTarHandleAddList($v_temp_tar, $p_list, $p_mode, $p_list_detail, $p_add_dir, $p_remove_dir)) == 1)
	  {
		// ----- Call the footer of the tar archive
		$v_result = PclTarHandleFooter($v_temp_tar, $p_mode);
	  }

	  // ----- Close the files
	  gzclose($p_tar);
	  gzclose($v_temp_tar);

	  // ----- Unlink tar file
	  if (!@unlink($p_tarname))
	  {
		// ----- Error log
		PclErrorLog(-11, "Error while deleting archive name $p_tarname");
	  }

	  // ----- Rename tar file
	  if (!@rename($v_temp_tarname, $p_tarname))
	  {
		// ----- Error log
		PclErrorLog(-12, "Error while renaming temporary file $v_temp_tarname to archive name $p_tarname");

		// ----- Return
		TrFctEnd(__FILE__, __LINE__, PclErrorCode(), PclErrorString());
		return PclErrorCode();
	  }

	  // ----- Return
	  TrFctEnd(__FILE__, __LINE__, $v_result);
	  return $v_result;
	}

	// ----- Look for uncompressed tar file
	else if ($p_mode=="tar")
	{
	  // ----- Open the tar file
	  if (($p_tar = fopen($p_tarname, "r+b")) == 0)
	  {
		// ----- Error log
		PclErrorLog(-1, "Unable to open file '$p_tarname' in binary write mode");

		// ----- Return
		TrFctEnd(__FILE__, __LINE__, PclErrorCode(), PclErrorString());
		return PclErrorCode();
	  }

	  // ----- Go to the beginning of last block
	  TrFctMessage(__FILE__, __LINE__, 4, "Position before :".($p_mode=="tar"?ftell($p_tar):gztell($p_tar)));
	  fseek($p_tar, $v_size-512);
	  TrFctMessage(__FILE__, __LINE__, 4, "Position after :".($p_mode=="tar"?ftell($p_tar):gztell($p_tar)));

	  // ----- Call the adding fct inside the tar
	  if (($v_result = PclTarHandleAddList($p_tar, $p_list, $p_mode, $p_list_detail, $p_add_dir, $p_remove_dir)) == 1)
	  {
		// ----- Call the footer of the tar archive
		$v_result = PclTarHandleFooter($p_tar, $p_mode);
	  }

	  // ----- Close the tarfile
	  fclose($p_tar);
	}

	// ----- Look for unknown type
	else
	{
	  // ----- Error log
	  PclErrorLog(-3, "Invalid tar mode $p_mode");

	  // ----- Return
	  TrFctEnd(__FILE__, __LINE__, PclErrorCode(), PclErrorString());
	  return PclErrorCode();
	}

	// ----- Return
	TrFctEnd(__FILE__, __LINE__, $v_result);
	return $v_result;
  }
  // --------------------------------------------------------------------------------

  // --------------------------------------------------------------------------------
  // Function : PclTarHandleAddList()
  // Description :
  //	$p_add_dir and $p_remove_dir will give the ability to memorize a path which is
  //	different from the real path of the file. This is usefull if you want to have PclTar
  //	running in any directory, and memorize relative path from an other directory.
  // Parameters :
  //	$p_tar : File descriptor of the tar archive
  //	$p_list : An array containing the file or directory names to add in the tar
  //	$p_mode : "tar" for normal tar archive, "tgz" for gzipped tar archive
  //	$p_list_detail : list of added files with their properties (specially the status field)
  //	$p_add_dir : Path to add in the filename path archived
  //	$p_remove_dir : Path to remove in the filename path archived
  // Return Values :
  // --------------------------------------------------------------------------------
  function PclTarHandleAddList($p_tar, $p_list, $p_mode, &$p_list_detail, $p_add_dir, $p_remove_dir)
  {
	TrFctStart(__FILE__, __LINE__, "PclTarHandleAddList", "tar='$p_tar', list, mode='$p_mode', add_dir='$p_add_dir', remove_dir='$p_remove_dir'");
	$v_result=1;
	$v_header = array();

	// ----- Recuperate the current number of elt in list
	$v_nb = sizeof($p_list_detail);

	// ----- Check the parameters
	if ($p_tar == 0)
	{
	  // ----- Error log
	  PclErrorLog(-3, "Invalid file descriptor in file ".__FILE__.", line ".__LINE__);

	  // ----- Return
	  TrFctEnd(__FILE__, __LINE__, PclErrorCode(), PclErrorString());
	  return PclErrorCode();
	}

	// ----- Check the arguments
	if (sizeof($p_list) == 0)
	{
	  // ----- Error log
	  PclErrorLog(-3, "Invalid file list parameter (invalid or empty list)");

	  // ----- Return
	  TrFctEnd(__FILE__, __LINE__, PclErrorCode(), PclErrorString());
	  return PclErrorCode();
	}

	// ----- Loop on the files
	for ($j=0; ($j<count($p_list)) && ($v_result==1); $j++)
	{
	  // ----- Recuperate the filename
	  $p_filename = $p_list[$j];

	  TrFctMessage(__FILE__, __LINE__, 2, "Looking for file [$p_filename]");

	  // ----- Skip empty file names
	  if ($p_filename == "")
	  {
		TrFctMessage(__FILE__, __LINE__, 2, "Skip empty filename");
		continue;
	  }

	  // ----- Check the filename
	  if (!file_exists($p_filename))
	  {
		// ----- Error log
		TrFctMessage(__FILE__, __LINE__, 2, "File '$p_filename' does not exists");
		PclErrorLog(-4, "File '$p_filename' does not exists");

		// ----- Return
		TrFctEnd(__FILE__, __LINE__, PclErrorCode(), PclErrorString());
		return PclErrorCode();
	  }

	  // ----- Check the path length
	  if (strlen($p_filename) > 99)
	  {
		// ----- Error log
		PclErrorLog(-5, "File name is too long (max. 99) : '$p_filename'");

		// ----- Return
		TrFctEnd(__FILE__, __LINE__, PclErrorCode(), PclErrorString());
		return PclErrorCode();
	  }

	  TrFctMessage(__FILE__, __LINE__, 4, "File position before header =".($p_mode=="tar"?ftell($p_tar):gztell($p_tar)));

	  // ----- Add the file
	  if (($v_result = PclTarHandleAddFile($p_tar, $p_filename, $p_mode, $v_header, $p_add_dir, $p_remove_dir)) != 1)
	  {
		// ----- Return status
		TrFctEnd(__FILE__, __LINE__, $v_result);
		return $v_result;
	  }

	  // ----- Store the file infos
	  $p_list_detail[$v_nb++] = $v_header;

	  // ----- Look for directory
	  if (is_dir($p_filename))
	  {
		TrFctMessage(__FILE__, __LINE__, 2, "$p_filename is a directory");

		// ----- Look for path
		if ($p_filename != ".")
		  $v_path = $p_filename."/";
		else
		  $v_path = "";

		// ----- Read the directory for files and sub-directories
		$p_hdir = opendir($p_filename);
		$p_hitem = readdir($p_hdir); // '.' directory
		$p_hitem = readdir($p_hdir); // '..' directory
		while ($p_hitem = readdir($p_hdir))
		{
		  // ----- Look for a file
		  if (is_file($v_path.$p_hitem))
		  {
			TrFctMessage(__FILE__, __LINE__, 4, "Add the file '".$v_path.$p_hitem."'");

			// ----- Add the file
			if (($v_result = PclTarHandleAddFile($p_tar, $v_path.$p_hitem, $p_mode, $v_header, $p_add_dir, $p_remove_dir)) != 1)
			{
			  // ----- Return status
			  TrFctEnd(__FILE__, __LINE__, $v_result);
			  return $v_result;
			}

			// ----- Store the file infos
			$p_list_detail[$v_nb++] = $v_header;
		  }

		  // ----- Recursive call to PclTarHandleAddFile()
		  else
		  {
			TrFctMessage(__FILE__, __LINE__, 4, "'".$v_path.$p_hitem."' is a directory");

			// ----- Need an array as parameter
			$p_temp_list[0] = $v_path.$p_hitem;
			$v_result = PclTarHandleAddList($p_tar, $p_temp_list, $p_mode, $p_list_detail, $p_add_dir, $p_remove_dir);
		  }
		}

		// ----- Free memory for the recursive loop
		unset($p_temp_list);
		unset($p_hdir);
		unset($p_hitem);
	  }
	  else
	  {
		TrFctMessage(__FILE__, __LINE__, 4, "File position after blocks =".($p_mode=="tar"?ftell($p_tar):gztell($p_tar)));
	  }
	}

	// ----- Return
	TrFctEnd(__FILE__, __LINE__, $v_result);
	return $v_result;
  }
  // --------------------------------------------------------------------------------

  // --------------------------------------------------------------------------------
  // Function : PclTarHandleAddFile()
  // Description :
  // Parameters :
  // Return Values :
  // --------------------------------------------------------------------------------
  function PclTarHandleAddFile($p_tar, $p_filename, $p_mode, &$p_header, $p_add_dir, $p_remove_dir)
  {
	TrFctStart(__FILE__, __LINE__, "PclTarHandleAddFile", "tar='$p_tar', filename='$p_filename', p_mode='$p_mode', add_dir='$p_add_dir', remove_dir='$p_remove_dir'");
	$v_result=1;

	// ----- Check the parameters
	if ($p_tar == 0)
	{
	  // ----- Error log
	  PclErrorLog(-3, "Invalid file descriptor in file ".__FILE__.", line ".__LINE__);

	  // ----- Return
	  TrFctEnd(__FILE__, __LINE__, PclErrorCode(), PclErrorString());
	  return PclErrorCode();
	}

	// ----- Skip empty file names
	if ($p_filename == "")
	{
	  // ----- Error log
	  PclErrorLog(-3, "Invalid file list parameter (invalid or empty list)");

	  // ----- Return
	  TrFctEnd(__FILE__, __LINE__, PclErrorCode(), PclErrorString());
	  return PclErrorCode();
	}

	// ----- Calculate the stored filename
	$v_stored_filename = $p_filename;
	if ($p_remove_dir != "")
	{
	  if (substr($p_remove_dir, -1) != '/')
		$p_remove_dir .= "/";

	  if ((substr($p_filename, 0, 2) == "./") || (substr($p_remove_dir, 0, 2) == "./"))
	  {
		if ((substr($p_filename, 0, 2) == "./") && (substr($p_remove_dir, 0, 2) != "./"))
		  $p_remove_dir = "./".$p_remove_dir;
		if ((substr($p_filename, 0, 2) != "./") && (substr($p_remove_dir, 0, 2) == "./"))
		  $p_remove_dir = substr($p_remove_dir, 2);
	  }

	  if (substr($p_filename, 0, strlen($p_remove_dir)) == $p_remove_dir)
	  {
		$v_stored_filename = substr($p_filename, strlen($p_remove_dir));
		TrFctMessage(__FILE__, __LINE__, 3, "Remove …

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