PclZip::privAdd

  function privAdd($p_filedescr_list, &$p_result_list, &$p_options)
  {
    $v_result=1;
    $v_list_detail = array();

    // ----- Look if the archive exists or is empty
    if ((!is_file($this->zipname)) || (filesize($this->zipname) == 0))
    {

      // ----- Do a create
      $v_result = $this->privCreate($p_filedescr_list, $p_result_list, $p_options);

      // ----- Return
      return $v_result;
    }
    // ----- Magic quotes trick
    $this->privDisableMagicQuotes();

    // ----- Open the zip file
    if (($v_result=$this->privOpenFd('rb')) != 1)
    {
      // ----- Magic quotes trick
      $this->privSwapBackMagicQuotes();

      // ----- Return
      return $v_result;
    }

    // ----- Read the central directory information
    $v_central_dir = array();
    if (($v_result = $this->privReadEndCentralDir($v_central_dir)) != 1)
    {
      $this->privCloseFd();
      $this->privSwapBackMagicQuotes();
      return $v_result;
    }

    // ----- Go to beginning of File
    @rewind($this->zip_fd);

    // ----- Creates a temporary file
    $v_zip_temp_name = PCLZIP_TEMPORARY_DIR.uniqid('pclzip-').'.tmp';

    // ----- Open the temporary file in write mode
    if (($v_zip_temp_fd = @fopen($v_zip_temp_name, 'wb')) == 0)
    {
      $this->privCloseFd();
      $this->privSwapBackMagicQuotes();

      PclZip::privErrorLog(PCLZIP_ERR_READ_OPEN_FAIL, 'Unable to open temporary file \''.$v_zip_temp_name.'\' in binary write mode');

      // ----- Return
      return PclZip::errorCode();
    }

    // ----- Copy the files from the archive to the temporary file
    // TBC : Here I should better append the file and go back to erase the central dir
    $v_size = $v_central_dir['offset'];
    while ($v_size != 0)
    {
      $v_read_size = ($v_size < PCLZIP_READ_BLOCK_SIZE ? $v_size : PCLZIP_READ_BLOCK_SIZE);
      $v_buffer = fread($this->zip_fd, $v_read_size);
      @fwrite($v_zip_temp_fd, $v_buffer, $v_read_size);
      $v_size -= $v_read_size;
    }

    // ----- Swap the file descriptor
    // Here is a trick : I swap the temporary fd with the zip fd, in order to use
    // the following methods on the temporary fil and not the real archive
    $v_swap = $this->zip_fd;
    $this->zip_fd = $v_zip_temp_fd;
    $v_zip_temp_fd = $v_swap;

    // ----- Add the files
    $v_header_list = array();
    if (($v_result = $this->privAddFileList($p_filedescr_list, $v_header_list, $p_options)) != 1)
    {
      fclose($v_zip_temp_fd);
      $this->privCloseFd();
      @unlink($v_zip_temp_name);
      $this->privSwapBackMagicQuotes();

      // ----- Return
      return $v_result;
    }

    // ----- Store the offset of the central dir
    $v_offset = @ftell($this->zip_fd);

    // ----- Copy the block of file headers from the old archive
    $v_size = $v_central_dir['size'];
    while ($v_size != 0)
    {
      $v_read_size = ($v_size < PCLZIP_READ_BLOCK_SIZE ? $v_size : PCLZIP_READ_BLOCK_SIZE);
      $v_buffer = @fread($v_zip_temp_fd, $v_read_size);
      @fwrite($this->zip_fd, $v_buffer, $v_read_size);
      $v_size -= $v_read_size;
    }

    // ----- Create the Central Dir files header
    for ($i=0, $v_count=0; $i<sizeof($v_header_list); $i++)
    {
      // ----- Create the file header
      if ($v_header_list[$i]['status'] == 'ok') {
        if (($v_result = $this->privWriteCentralFileHeader($v_header_list[$i])) != 1) {
          fclose($v_zip_temp_fd);
          $this->privCloseFd();
          @unlink($v_zip_temp_name);
          $this->privSwapBackMagicQuotes();

          // ----- Return
          return $v_result;
        }
        $v_count++;
      }

      // ----- Transform the header to a 'usable' info
      $this->privConvertHeader2FileInfo($v_header_list[$i], $p_result_list[$i]);
    }

    // ----- Zip file comment
    $v_comment = $v_central_dir['comment'];
    if (isset($p_options[PCLZIP_OPT_COMMENT])) {
      $v_comment = $p_options[PCLZIP_OPT_COMMENT];
    }
    if (isset($p_options[PCLZIP_OPT_ADD_COMMENT])) {
      $v_comment = $v_comment.$p_options[PCLZIP_OPT_ADD_COMMENT];
    }
    if (isset($p_options[PCLZIP_OPT_PREPEND_COMMENT])) {
      $v_comment = $p_options[PCLZIP_OPT_PREPEND_COMMENT].$v_comment;
    }

    // ----- Calculate the size of the central header
    $v_size = @ftell($this->zip_fd)-$v_offset;

    // ----- Create the central dir footer
    if (($v_result = $this->privWriteCentralHeader($v_count+$v_central_dir['entries'], $v_size, $v_offset, $v_comment)) != 1)
    {
      // ----- Reset the file list
      unset($v_header_list);
      $this->privSwapBackMagicQuotes();

      // ----- Return
      return $v_result;
    }

    // ----- Swap back the file descriptor
    $v_swap = $this->zip_fd;
    $this->zip_fd = $v_zip_temp_fd;
    $v_zip_temp_fd = $v_swap;

    // ----- Close
    $this->privCloseFd();

    // ----- Close the temporary file
    @fclose($v_zip_temp_fd);

    // ----- Magic quotes trick
    $this->privSwapBackMagicQuotes();

    // ----- Delete the zip file
    // TBC : I should test the result ...
    @unlink($this->zipname);

    // ----- Rename the temporary file
    // TBC : I should test the result ...
    //@rename($v_zip_temp_name, $this->zipname);
    PclZipUtilRename($v_zip_temp_name, $this->zipname);

    // ----- Return
    return $v_result;
  }