Method internalAttach

src/jrd/jrd.cpp:1626–2306

}

JAttachment* JProvider::internalAttach(CheckStatusWrapper* user_status, const char* const filename,
		unsigned int dpb_length, const unsigned char* dpb, const UserId* existingId)
{
/**************************************
 *
 *	g d s _ $ a t t a c h _ d a t a b a s e
 *
 **************************************
 *
 * Functional description
 *	Attach a moldy, grungy, old database
 *	sullied by user data.
 *
 **************************************/
	try
	{
		ThreadContextHolder tdbb(user_status);

		DatabaseOptions options;
		RefPtr<const Config> config;
		bool invalid_client_SQL_dialect = false;
		PathName org_filename, expanded_name;
		bool is_alias = false;
		MutexEnsureUnlock guardDbInit(dbInitMutex, FB_FUNCTION);
		LateRefGuard lateBlocking(FB_FUNCTION);
		Mapping mapping(Mapping::MAP_THROW_NOT_FOUND, cryptCallback);

		try
		{
			// Process database parameter block
			options.get(dpb, dpb_length, invalid_client_SQL_dialect);

			// And provide info about auth block to mapping
			mapping.setAuthBlock(options.dpb_auth_block);

			if (options.dpb_org_filename.hasData())
				org_filename = options.dpb_org_filename;
			else
			{
				org_filename = filename;

				if (!options.dpb_utf8_filename)
					ISC_systemToUtf8(org_filename);

				ISC_unescape(org_filename);
			}

			ISC_utf8ToSystem(org_filename);

			// Resolve given alias name
			is_alias = expandDatabaseName(org_filename, expanded_name, &config);
			if (!is_alias)
			{
				expanded_name = filename;

				if (!options.dpb_utf8_filename)
					ISC_systemToUtf8(expanded_name);