Port:          80,
				FWMark:        0,
				SchedName:     "",
				Flags:         uint32(FlagPersistent + FlagHashed),
				Timeout:       0,
				Netmask:       0xffffffff,
				AddressFamily: unix.AF_INET,
				Address:       nil,
				PEName:        "",
			},
			VirtualServer{
				Address:   netutils.ParseIPSloppy("0.0.0.0"),
				Protocol:  "TCP",
				Port:      80,
				Scheduler: "",

	"encoding/hex"
	"fmt"
	"io"
	"net"
	"os"

	"strings"

	"k8s.io/klog/v2"
	netutils "k8s.io/utils/net"
)

type AddressFamily uint

const (
	familyIPv4 AddressFamily = 4
	familyIPv6 AddressFamily = 6
)

type AddressFamilyPreference []AddressFamily

var (
	preferIPv4 = AddressFamilyPreference{familyIPv4, familyIPv6}
	preferIPv6 = AddressFamilyPreference{familyIPv6, familyIPv4}
)

		Port:      vs.Port,
		SchedName: vs.Scheduler,
		Flags:     uint32(vs.Flags),
		Timeout:   vs.Timeout,
	}

	if ip4 := vs.Address.To4(); ip4 != nil {
		ipvsSvc.AddressFamily = unix.AF_INET
		ipvsSvc.Netmask = 0xffffffff
	} else {
		ipvsSvc.AddressFamily = unix.AF_INET6
		ipvsSvc.Netmask = 128
	}
	return ipvsSvc, nil
}

// toIPVSDestination converts a RealServer to the equivalent IPVS Destination structure.

	buf := make([]syscall.WSAProtocolInfo, n)
	n, err := syscall.WSAEnumProtocols(nil, &buf[0], &size)
	if err != nil {
		return false
	}
	for i := int32(0); i < n; i++ {
		if buf[i].AddressFamily == syscall.AF_UNIX {
			return true
		}
	}
	return false

				}
			}
		}
	}
}

func TestParseIP(t *testing.T) {
	testCases := []struct {
		tcase    string
		ip       string
		family   AddressFamily
		success  bool
		expected net.IP
	}{
		{"empty", "", familyIPv4, false, nil},
		{"too short", "AA", familyIPv4, false, nil},
		{"too long", "0011223344", familyIPv4, false, nil},

	ServiceFlags3     uint32
	ServiceFlags4     uint32
	ProviderFlags     uint32
	ProviderId        GUID
	CatalogEntryId    uint32
	ProtocolChain     WSAProtocolChain
	Version           int32
	AddressFamily     int32
	MaxSockAddr       int32
	MinSockAddr       int32
	SocketType        int32
	Protocol          int32
	ProtocolMaxOffset int32
	NetworkByteOrder  int32
	SecurityScheme    int32

  Try {
    Get-NetRoute `
        -ErrorAction "Stop" `
        -AddressFamily IPv4 `
        -DestinationPrefix ${GCE_METADATA_SERVER}/32 | Out-Null
  } Catch [Microsoft.PowerShell.Cmdletization.Cim.CimJobException] {
    Log-Output -Fatal `
        ("GCE metadata server route is not present as expected.`n" +
         "$(Get-NetRoute -AddressFamily IPv4 | Out-String)")
  }
}

	ServiceFlags3     uint32
	ServiceFlags4     uint32
	ProviderFlags     uint32
	ProviderId        GUID
	CatalogEntryId    uint32
	ProtocolChain     WSAProtocolChain
	Version           int32
	AddressFamily     int32
	MaxSockAddr       int32
	MinSockAddr       int32
	SocketType        int32
	Protocol          int32
	ProtocolMaxOffset int32
	NetworkByteOrder  int32
	SecurityScheme    int32

		sa.raw.Path[0] = 0
		// Don't count trailing NUL for abstract address.
		sl--
	}

	return unsafe.Pointer(&sa.raw), sl, nil
}

type RawSockaddrBth struct {
	AddressFamily  [2]byte
	BtAddr         [8]byte
	ServiceClassId [16]byte
	Port           [4]byte
}

type SockaddrBth struct {
	BtAddr         uint64
	ServiceClassId GUID
	Port           uint32

		{"WSAPROTOCOL_LEN", Const, 2},
		{"WSAProtocolChain", Type, 2},
		{"WSAProtocolChain.ChainEntries", Field, 2},
		{"WSAProtocolChain.ChainLen", Field, 2},
		{"WSAProtocolInfo", Type, 2},
		{"WSAProtocolInfo.AddressFamily", Field, 2},
		{"WSAProtocolInfo.CatalogEntryId", Field, 2},
		{"WSAProtocolInfo.MaxSockAddr", Field, 2},
		{"WSAProtocolInfo.MessageSize", Field, 2},
		{"WSAProtocolInfo.MinSockAddr", Field, 2},