function Archive_Tar::_readBlock

Return value

null|string

4 calls to Archive_Tar::_readBlock()
Archive_Tar::_extractInString in 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 modules/system/system.tar.inc
Archive_Tar::_jumpBlock in modules/system/system.tar.inc
Archive_Tar::_readLongHeader in modules/system/system.tar.inc

File

modules/system/system.tar.inc, line 1106

Class

Archive_Tar

Code

public 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 == 'lzma2') {
                    $v_block = @xzread($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;
}

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