Function CSSM_GetSubserviceUIDFromHandle 

pub unsafe extern "C-unwind" fn CSSM_GetSubserviceUIDFromHandle(
    module_handle: CSSM_MODULE_HANDLE,
    subservice_uid: CSSM_SUBSERVICE_UID_PTR,
) -> CSSM_RETURN

👎Deprecated

Available on crate features cssmapi and cssmconfig and cssmtype only.

Safety

subservice_uid must be a valid pointer.