MCAST_SCOPE_ENTRY

using System;
using System.Runtime.InteropServices;

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct IPNG_ADDRESS
{
    public uint IpAddrV4;
    [MarshalAs(UnmanagedType.ByValArray, SizeConst = 16)] public byte[] IpAddrV6;
}

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct MCAST_SCOPE_CTX
{
    public IPNG_ADDRESS ScopeID;
    public IPNG_ADDRESS Interface;
    public IPNG_ADDRESS ServerID;
}

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct UNICODE_STRING
{
    public ushort Length;
    public ushort MaximumLength;
    public IntPtr Buffer;
}

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct MCAST_SCOPE_ENTRY
{
    public MCAST_SCOPE_CTX ScopeCtx;
    public IPNG_ADDRESS LastAddr;
    public uint TTL;
    public UNICODE_STRING ScopeDesc;
}

Imports System.Runtime.InteropServices

<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure IPNG_ADDRESS
    Public IpAddrV4 As UInteger
    <MarshalAs(UnmanagedType.ByValArray, SizeConst:=16)> Public IpAddrV6() As Byte
End Structure

<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure MCAST_SCOPE_CTX
    Public ScopeID As IPNG_ADDRESS
    Public Interface As IPNG_ADDRESS
    Public ServerID As IPNG_ADDRESS
End Structure

<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure UNICODE_STRING
    Public Length As UShort
    Public MaximumLength As UShort
    Public Buffer As IntPtr
End Structure

<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure MCAST_SCOPE_ENTRY
    Public ScopeCtx As MCAST_SCOPE_CTX
    Public LastAddr As IPNG_ADDRESS
    Public TTL As UInteger
    Public ScopeDesc As UNICODE_STRING
End Structure

import ctypes
from ctypes import wintypes

class IPNG_ADDRESS(ctypes.Structure):
    _fields_ = [
        ("IpAddrV4", wintypes.DWORD),
        ("IpAddrV6", ctypes.c_ubyte * 16),
    ]

class MCAST_SCOPE_CTX(ctypes.Structure):
    _fields_ = [
        ("ScopeID", IPNG_ADDRESS),
        ("Interface", IPNG_ADDRESS),
        ("ServerID", IPNG_ADDRESS),
    ]

class UNICODE_STRING(ctypes.Structure):
    _fields_ = [
        ("Length", ctypes.c_ushort),
        ("MaximumLength", ctypes.c_ushort),
        ("Buffer", ctypes.c_void_p),
    ]

class MCAST_SCOPE_ENTRY(ctypes.Structure):
    _fields_ = [
        ("ScopeCtx", MCAST_SCOPE_CTX),
        ("LastAddr", IPNG_ADDRESS),
        ("TTL", wintypes.DWORD),
        ("ScopeDesc", UNICODE_STRING),
    ]

#[repr(C)]
pub struct IPNG_ADDRESS {
    pub IpAddrV4: u32,
    pub IpAddrV6: [u8; 16],
}

#[repr(C)]
pub struct MCAST_SCOPE_CTX {
    pub ScopeID: IPNG_ADDRESS,
    pub Interface: IPNG_ADDRESS,
    pub ServerID: IPNG_ADDRESS,
}

#[repr(C)]
pub struct UNICODE_STRING {
    pub Length: u16,
    pub MaximumLength: u16,
    pub Buffer: *mut core::ffi::c_void,
}

#[repr(C)]
pub struct MCAST_SCOPE_ENTRY {
    pub ScopeCtx: MCAST_SCOPE_CTX,
    pub LastAddr: IPNG_ADDRESS,
    pub TTL: u32,
    pub ScopeDesc: UNICODE_STRING,
}

import "golang.org/x/sys/windows"

type IPNG_ADDRESS struct {
	IpAddrV4 uint32
	IpAddrV6 [16]byte
}

type MCAST_SCOPE_CTX struct {
	ScopeID IPNG_ADDRESS
	Interface IPNG_ADDRESS
	ServerID IPNG_ADDRESS
}

type UNICODE_STRING struct {
	Length uint16
	MaximumLength uint16
	Buffer uintptr
}

type MCAST_SCOPE_ENTRY struct {
	ScopeCtx MCAST_SCOPE_CTX
	LastAddr IPNG_ADDRESS
	TTL uint32
	ScopeDesc UNICODE_STRING
}

type
  IPNG_ADDRESS = record
    IpAddrV4: DWORD;
    IpAddrV6: array[0..15] of Byte;
  end;

  MCAST_SCOPE_CTX = record
    ScopeID: IPNG_ADDRESS;
    Interface: IPNG_ADDRESS;
    ServerID: IPNG_ADDRESS;
  end;

  UNICODE_STRING = record
    Length: Word;
    MaximumLength: Word;
    Buffer: Pointer;
  end;

  MCAST_SCOPE_ENTRY = record
    ScopeCtx: MCAST_SCOPE_CTX;
    LastAddr: IPNG_ADDRESS;
    TTL: DWORD;
    ScopeDesc: UNICODE_STRING;
  end;

const IPNG_ADDRESS = extern struct {
    IpAddrV4: u32,
    IpAddrV6: [16]u8,
};

const MCAST_SCOPE_CTX = extern struct {
    ScopeID: IPNG_ADDRESS,
    Interface: IPNG_ADDRESS,
    ServerID: IPNG_ADDRESS,
};

const UNICODE_STRING = extern struct {
    Length: u16,
    MaximumLength: u16,
    Buffer: ?*anyopaque,
};

const MCAST_SCOPE_ENTRY = extern struct {
    ScopeCtx: MCAST_SCOPE_CTX,
    LastAddr: IPNG_ADDRESS,
    TTL: u32,
    ScopeDesc: UNICODE_STRING,
};

type
  IPNG_ADDRESS {.bycopy.} = object
    IpAddrV4: uint32
    IpAddrV6: array[16, uint8]

  MCAST_SCOPE_CTX {.bycopy.} = object
    ScopeID: IPNG_ADDRESS
    Interface: IPNG_ADDRESS
    ServerID: IPNG_ADDRESS

  UNICODE_STRING {.bycopy.} = object
    Length: uint16
    MaximumLength: uint16
    Buffer: pointer

  MCAST_SCOPE_ENTRY {.bycopy.} = object
    ScopeCtx: MCAST_SCOPE_CTX
    LastAddr: IPNG_ADDRESS
    TTL: uint32
    ScopeDesc: UNICODE_STRING

struct IPNG_ADDRESS
{
    uint IpAddrV4;
    ubyte[16] IpAddrV6;
}

struct MCAST_SCOPE_CTX
{
    IPNG_ADDRESS ScopeID;
    IPNG_ADDRESS Interface;
    IPNG_ADDRESS ServerID;
}

struct UNICODE_STRING
{
    ushort Length;
    ushort MaximumLength;
    void* Buffer;
}

struct MCAST_SCOPE_ENTRY
{
    MCAST_SCOPE_CTX ScopeCtx;
    IPNG_ADDRESS LastAddr;
    uint TTL;
    UNICODE_STRING ScopeDesc;
}