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Edit File: pcltar.php

<?php
// --------------------------------------------------------------------------------
// PhpConcept Library - Tar Module 1.3.1
// --------------------------------------------------------------------------------
// License GNU/GPL - Vincent Blavet - January 2003
// 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 );

// ----- Configuration variable
  // Theses values may be changed by the user of PclTar library
  if (!isset($g_pcltar_lib_dir))
    $g_pcltar_lib_dir = find_in_path("lib/pcltar");

// ----- 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 = "1.3.1";

// ----- Extract extension type (.php3/.php/...)
  $g_pcltar_extension = "php";

// ----- 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($g_pcltar_lib_dir."/pclerror.lib.".$g_pcltar_extension);
  }
  if (!defined("PCLTRACE_LIB"))
  {
    include($g_pcltar_lib_dir."/pcltrace.lib.".$g_pcltar_extension);
  }

// --------------------------------------------------------------------------------
  // 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();

// ----- 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;

// ----- 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;

// ----- Call the extracting fct
    if (($v_result = PclTarHandleExtract($p_tarname, 0, $p_list, "complete", $p_path, $v_tar_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;

// ----- 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;

// ----- 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;

// ----- 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;

// ----- 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;

$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();
      }

// ----- 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();