Function expandDatabaseName

src/common/db_alias.cpp:488–560

Full processing of database name Returns true if alias was found in databases.conf

// Full processing of database name
// Returns true if alias was found in databases.conf
bool expandDatabaseName(Firebird::PathName alias,
						Firebird::PathName& file,
						Firebird::RefPtr<const Config>* config)
{
	try
	{
		aliasesConf().checkLoadConfig();
	}
	catch (const fatal_exception& ex)
	{
		gds__log("File databases.conf contains bad data: %s", ex.what());
		Arg::Gds(isc_server_misconfigured).raise();
	}

	// remove whitespaces from database name
	alias.trim();

	ReadLockGuard guard(aliasesConf().rwLock, "expandDatabaseName");

	// First of all check in databases.conf
	if (resolveAlias(alias, file, config))
	{
		return true;
	}

	// Now try ISC_PATH environment variable
	if (!setPath(alias, file))
	{
		// At this step check DatabaseAccess paths in firebird.conf
		if (!resolveDatabaseAccess(alias, file))
		{
			// Last chance - regular filename expansion
			file = alias;

			ISC_systemToUtf8(file);
			ISC_unescape(file);
			ISC_utf8ToSystem(file);

			ISC_expand_filename(file, true);

			ISC_systemToUtf8(file);
			ISC_escape(file);
			ISC_utf8ToSystem(file);
		}
	}

	// Search for correct config in databases.conf
	if (config)
	{
		DbName* db = aliasesConf().dbHash.lookup(file);
#ifdef HAVE_ID_BY_NAME
		if (!db)
		{
			UCharBuffer id;
			os_utils::getUniqueFileId(file.c_str(), id);
			if (id.hasData())
			{
				Id* i = aliasesConf().idHash.lookup(id);