}
	}()
	aas, err := adapterAddresses()
	if err != nil {
		return
	}

	for _, aa := range aas {
		// Only take interfaces whose OperStatus is IfOperStatusUp(0x01) into DNS configs.
		if aa.OperStatus != windows.IfOperStatusUp {
			continue
		}

		// Only take interfaces which have at least one gateway
		if aa.FirstGatewayAddress == nil {
			continue
		}

			index = aa.Ipv6IfIndex
		}
		if ifindex == 0 || ifindex == int(index) {
			ifi := Interface{
				Index: int(index),
				Name:  windows.UTF16PtrToString(aa.FriendlyName),
			}
			if aa.OperStatus == windows.IfOperStatusUp {
				ifi.Flags |= FlagUp
				ifi.Flags |= FlagRunning
			}
			// For now we need to infer link-layer service
			// capabilities from media types.
			// TODO: use MIB_IF_ROW2.AccessType now that we no longer support

	// says that “The C/C++ headers in the Windows SDK assume the platform's
	// default alignment is used.” What we see here is padding rather than
	// alignment, but maybe it is related.
	_ uint32
}

const (
	IfOperStatusUp             = 1
	IfOperStatusDown           = 2
	IfOperStatusTesting        = 3
	IfOperStatusUnknown        = 4
	IfOperStatusDormant        = 5
	IfOperStatusNotPresent     = 6
	IfOperStatusLowerLayerDown = 7

	Next     *IpAdapterGatewayAddress
	Address  SocketAddress
}

type IpAdapterDNSSuffix struct {
	Next   *IpAdapterDNSSuffix
	String [MAX_DNS_SUFFIX_STRING_LENGTH]uint16
}

const (
	IfOperStatusUp             = 1
	IfOperStatusDown           = 2
	IfOperStatusTesting        = 3
	IfOperStatusUnknown        = 4
	IfOperStatusDormant        = 5
	IfOperStatusNotPresent     = 6