function Archive_Tar::_readBlock

7.x system.tar.inc Archive_Tar::_readBlock()
4 calls to Archive_Tar::_readBlock()
Archive_Tar::_extractInString in drupal-7.x/modules/system/system.tar.inc
This method extract from the archive one file identified by $p_filename. The return value is a string with the file content, or NULL on error.
Archive_Tar::_extractList in drupal-7.x/modules/system/system.tar.inc
Archive_Tar::_jumpBlock in drupal-7.x/modules/system/system.tar.inc
Archive_Tar::_readLongHeader in drupal-7.x/modules/system/system.tar.inc

File

drupal-7.x/modules/system/system.tar.inc, line 840

Class

Archive_Tar
Creates a (compressed) Tar archive *

Code

function _readBlock() 
 {
  $v_block = null;
  if (is_resource($this->_file)) {
    if ($this->_compress_type == 'gz') {
      $v_block = @gzread($this->_file, 512);
    }
    else if ($this->_compress_type == 'bz2') {
      $v_block = @bzread($this->_file, 512);
    }
    else if ($this->_compress_type == 'none') {
      $v_block = @fread($this->_file, 512);
    }
    else {
      $this->_error('Unknown or missing compression type ('
        . $this->_compress_type . ')');
    }
  }
  return $v_block;
}