Function CSSM_GetModuleGUIDFromHandle 

pub unsafe extern "C-unwind" fn CSSM_GetModuleGUIDFromHandle(
    module_handle: CSSM_MODULE_HANDLE,
    module_guid: CSSM_GUID_PTR,
) -> CSSM_RETURN

👎Deprecated

Available on crate features cssmapi and cssmconfig and cssmtype only.

Safety

module_guid must be a valid pointer.