Method getFbVersion

src/yvalve/utl.cpp:427–569

}

void UtilInterface::getFbVersion(CheckStatusWrapper* status, IAttachment* att,
	IVersionCallback* callback)
{
/**************************************
 *
 *	g d s _ $ v e r s i o n
 *
 **************************************
 *
 * Functional description
 *	Obtain and print information about a database.
 *
 **************************************/
	try
	{
		if (!att)
			Arg::Gds(isc_bad_db_handle).raise();

		UCharBuffer buffer;
		USHORT buf_len = 256;
		UCHAR* buf = buffer.getBuffer(buf_len);

		const TEXT* versions = 0;
		const TEXT* implementations = 0;
		const UCHAR* dbis = NULL;
		bool redo;

		do
		{
			att->getInfo(status, sizeof(info), info, buf_len, buf);
			if (status->getState() & Firebird::IStatus::STATE_ERRORS)
				return;

			ClumpletReader p(ClumpletReader::InfoResponse, buf, buf_len);

			for (redo = false; !(redo || p.isEof()); p.moveNext())
			{
				switch (p.getClumpTag())
				{
				case isc_info_firebird_version:
					versions = (TEXT*) p.getBytes();
					break;

				case isc_info_implementation:
					implementations = (TEXT*) p.getBytes();
					break;

				case fb_info_implementation:
					dbis = p.getBytes();
					if (dbis[0] * 6u + 1u > p.getClumpLength())
					{
						// fb_info_implementation value appears incorrect
						dbis = NULL;
					}
					break;

				case isc_info_error:
					// old server does not understand fb_info_implementation