ftp_pure::_data_write_block

	function _data_write_block($mode, $block) {
		if($mode!=FTP_BINARY) $block=preg_replace("/\r\n|\r|\n/", $this->_eol_code[$this->OS_remote], $block);
		do {
			if(($t=@fwrite($this->_ftp_data_sock, $block))===FALSE) {
				$this->PushError("_data_write","Can't write to socket");
				return FALSE;
			}
			$block=substr($block, $t);
		} while(!empty($block));
		return true;
	}