Function ISC_expand_share

src/common/isc_file.cpp:979–1082

#if defined(WIN_NT)
void ISC_expand_share(tstring& file_name)
{
/**************************************
 *
 *	I S C _ e x p a n d _ s h a r e
 *
 **************************************
 *
 * Functional description
 *	Expand a file name by chasing shared disk
 *	information.
 *
 **************************************/
	// see NT reference for WNetEnumResource for the following constants
	DWORD nument = 0xffffffff, bufSize = 16384;

	// Look for a drive letter and make sure that it corresponds to a remote disk
	const size p = file_name.find(':');
	if (p != 1)
	{
		return;
	}

	// If RemoteFileOpenAbility = 1 doesn't expand share
	if (Config::getRemoteFileOpenAbility()) {
		return;
	}

	tstring device(file_name.substr(0, 1));
	const USHORT dtype = GetDriveType((device + ":\\").c_str());
	if (dtype != DRIVE_REMOTE)
	{
		return;
	}

	HANDLE handle;
	if (WNetOpenEnum(RESOURCE_CONNECTED, RESOURCETYPE_DISK, 0, NULL, &handle) != NO_ERROR)
	{
		return;
	}
	LPNETRESOURCE resources = (LPNETRESOURCE) gds__alloc((SLONG) bufSize);
	// FREE: in this routine
	if (!resources)				// NOMEM: don't expand the filename
	{
		return;
	}

	DWORD ret = WNetEnumResource(handle, &nument, resources, &bufSize);
	if (ret == ERROR_MORE_DATA)
	{
		gds__free(resources);
		resources = (LPNETRESOURCE) gds__alloc((SLONG) bufSize);
		// FREE: in this routine
		if (!resources)			// NOMEM: don't expand the filename
		{
			return;
		}
		ret = WNetEnumResource(handle, &nument, resources, &bufSize);