if returnCode != 0 || request.header.outputDesc.offset == 0 {
		return nil, errnoErr(EINVAL)
	}

	// Check that EZBNMIF4 returned a nwmRecHeader
	recHeader := (*nwmRecHeader)(unsafe.Pointer(&responseBuffer[request.header.outputDesc.offset]))
	if recHeader.ident != nwmRecHeaderIdentifier {
		return nil, errnoErr(EINVAL)
	}

	// Parse nwmTriplets to get offsets of returned entries
	var sections []*uint64