IP_PER_ADAPTER_INFO_W2KSP1

using System;
using System.Runtime.InteropServices;

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct IP_ADDRESS_STRING
{
    [MarshalAs(UnmanagedType.ByValArray, SizeConst = 16)] public sbyte[] String;
}

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct IP_ADDR_STRING
{
    public IntPtr Next;
    public IP_ADDRESS_STRING IpAddress;
    public IP_ADDRESS_STRING IpMask;
    public uint Context;
}

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct IP_PER_ADAPTER_INFO_W2KSP1
{
    public uint AutoconfigEnabled;
    public uint AutoconfigActive;
    public IntPtr CurrentDnsServer;
    public IP_ADDR_STRING DnsServerList;
}

Imports System.Runtime.InteropServices

<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure IP_ADDRESS_STRING
    <MarshalAs(UnmanagedType.ByValArray, SizeConst:=16)> Public String() As SByte
End Structure

<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure IP_ADDR_STRING
    Public Next As IntPtr
    Public IpAddress As IP_ADDRESS_STRING
    Public IpMask As IP_ADDRESS_STRING
    Public Context As UInteger
End Structure

<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure IP_PER_ADAPTER_INFO_W2KSP1
    Public AutoconfigEnabled As UInteger
    Public AutoconfigActive As UInteger
    Public CurrentDnsServer As IntPtr
    Public DnsServerList As IP_ADDR_STRING
End Structure

import ctypes
from ctypes import wintypes

class IP_ADDRESS_STRING(ctypes.Structure):
    _fields_ = [
        ("String", ctypes.c_byte * 16),
    ]

class IP_ADDR_STRING(ctypes.Structure):
    _fields_ = [
        ("Next", ctypes.c_void_p),
        ("IpAddress", IP_ADDRESS_STRING),
        ("IpMask", IP_ADDRESS_STRING),
        ("Context", wintypes.DWORD),
    ]

class IP_PER_ADAPTER_INFO_W2KSP1(ctypes.Structure):
    _fields_ = [
        ("AutoconfigEnabled", wintypes.DWORD),
        ("AutoconfigActive", wintypes.DWORD),
        ("CurrentDnsServer", ctypes.c_void_p),
        ("DnsServerList", IP_ADDR_STRING),
    ]

#[repr(C)]
pub struct IP_ADDRESS_STRING {
    pub String: [i8; 16],
}

#[repr(C)]
pub struct IP_ADDR_STRING {
    pub Next: *mut core::ffi::c_void,
    pub IpAddress: IP_ADDRESS_STRING,
    pub IpMask: IP_ADDRESS_STRING,
    pub Context: u32,
}

#[repr(C)]
pub struct IP_PER_ADAPTER_INFO_W2KSP1 {
    pub AutoconfigEnabled: u32,
    pub AutoconfigActive: u32,
    pub CurrentDnsServer: *mut core::ffi::c_void,
    pub DnsServerList: IP_ADDR_STRING,
}

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

type IP_ADDRESS_STRING struct {
	String [16]int8
}

type IP_ADDR_STRING struct {
	Next uintptr
	IpAddress IP_ADDRESS_STRING
	IpMask IP_ADDRESS_STRING
	Context uint32
}

type IP_PER_ADAPTER_INFO_W2KSP1 struct {
	AutoconfigEnabled uint32
	AutoconfigActive uint32
	CurrentDnsServer uintptr
	DnsServerList IP_ADDR_STRING
}

type
  IP_ADDRESS_STRING = record
    String: array[0..15] of Shortint;
  end;

  IP_ADDR_STRING = record
    Next: Pointer;
    IpAddress: IP_ADDRESS_STRING;
    IpMask: IP_ADDRESS_STRING;
    Context: DWORD;
  end;

  IP_PER_ADAPTER_INFO_W2KSP1 = record
    AutoconfigEnabled: DWORD;
    AutoconfigActive: DWORD;
    CurrentDnsServer: Pointer;
    DnsServerList: IP_ADDR_STRING;
  end;

const IP_ADDRESS_STRING = extern struct {
    String: [16]i8,
};

const IP_ADDR_STRING = extern struct {
    Next: ?*anyopaque,
    IpAddress: IP_ADDRESS_STRING,
    IpMask: IP_ADDRESS_STRING,
    Context: u32,
};

const IP_PER_ADAPTER_INFO_W2KSP1 = extern struct {
    AutoconfigEnabled: u32,
    AutoconfigActive: u32,
    CurrentDnsServer: ?*anyopaque,
    DnsServerList: IP_ADDR_STRING,
};

type
  IP_ADDRESS_STRING {.bycopy.} = object
    String: array[16, int8]

  IP_ADDR_STRING {.bycopy.} = object
    Next: pointer
    IpAddress: IP_ADDRESS_STRING
    IpMask: IP_ADDRESS_STRING
    Context: uint32

  IP_PER_ADAPTER_INFO_W2KSP1 {.bycopy.} = object
    AutoconfigEnabled: uint32
    AutoconfigActive: uint32
    CurrentDnsServer: pointer
    DnsServerList: IP_ADDR_STRING

struct IP_ADDRESS_STRING
{
    byte[16] String;
}

struct IP_ADDR_STRING
{
    void* Next;
    IP_ADDRESS_STRING IpAddress;
    IP_ADDRESS_STRING IpMask;
    uint Context;
}

struct IP_PER_ADAPTER_INFO_W2KSP1
{
    uint AutoconfigEnabled;
    uint AutoconfigActive;
    void* CurrentDnsServer;
    IP_ADDR_STRING DnsServerList;
}