[libvirt] devAlias correct parsing

Hello, I would be grateful if you help me with next thing: I've successfully subscribed on VIR_DOMAIN_EVENT_ID_TRAY_CHANGE event in my application (QEMU based). It perfectly works and returns to me an device alias (e.g. "drive-scsi0-0-1-0"). Of course I can split this string by delimiter '-'. However, I've found private virDomainDefFindDevice function within libvirt and seems that its make correct parsing. How can I use it in my code? Thank you! -- Regards, Alexander Burluka