DHCP_CLIENT_INFO

using System;
using System.Runtime.InteropServices;

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct DHCP_BINARY_DATA
{
    public uint DataLength;
    public IntPtr Data;
}

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct DATE_TIME
{
    public uint dwLowDateTime;
    public uint dwHighDateTime;
}

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct DHCP_HOST_INFO
{
    public uint IpAddress;
    public IntPtr NetBiosName;
    public IntPtr HostName;
}

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct DHCP_CLIENT_INFO
{
    public uint ClientIpAddress;
    public uint SubnetMask;
    public DHCP_BINARY_DATA ClientHardwareAddress;
    public IntPtr ClientName;
    public IntPtr ClientComment;
    public DATE_TIME ClientLeaseExpires;
    public DHCP_HOST_INFO OwnerHost;
}

Imports System.Runtime.InteropServices

<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure DHCP_BINARY_DATA
    Public DataLength As UInteger
    Public Data As IntPtr
End Structure

<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure DATE_TIME
    Public dwLowDateTime As UInteger
    Public dwHighDateTime As UInteger
End Structure

<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure DHCP_HOST_INFO
    Public IpAddress As UInteger
    Public NetBiosName As IntPtr
    Public HostName As IntPtr
End Structure

<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure DHCP_CLIENT_INFO
    Public ClientIpAddress As UInteger
    Public SubnetMask As UInteger
    Public ClientHardwareAddress As DHCP_BINARY_DATA
    Public ClientName As IntPtr
    Public ClientComment As IntPtr
    Public ClientLeaseExpires As DATE_TIME
    Public OwnerHost As DHCP_HOST_INFO
End Structure

import ctypes
from ctypes import wintypes

class DHCP_BINARY_DATA(ctypes.Structure):
    _fields_ = [
        ("DataLength", wintypes.DWORD),
        ("Data", ctypes.c_void_p),
    ]

class DATE_TIME(ctypes.Structure):
    _fields_ = [
        ("dwLowDateTime", wintypes.DWORD),
        ("dwHighDateTime", wintypes.DWORD),
    ]

class DHCP_HOST_INFO(ctypes.Structure):
    _fields_ = [
        ("IpAddress", wintypes.DWORD),
        ("NetBiosName", ctypes.c_void_p),
        ("HostName", ctypes.c_void_p),
    ]

class DHCP_CLIENT_INFO(ctypes.Structure):
    _fields_ = [
        ("ClientIpAddress", wintypes.DWORD),
        ("SubnetMask", wintypes.DWORD),
        ("ClientHardwareAddress", DHCP_BINARY_DATA),
        ("ClientName", ctypes.c_void_p),
        ("ClientComment", ctypes.c_void_p),
        ("ClientLeaseExpires", DATE_TIME),
        ("OwnerHost", DHCP_HOST_INFO),
    ]

#[repr(C)]
pub struct DHCP_BINARY_DATA {
    pub DataLength: u32,
    pub Data: *mut core::ffi::c_void,
}

#[repr(C)]
pub struct DATE_TIME {
    pub dwLowDateTime: u32,
    pub dwHighDateTime: u32,
}

#[repr(C)]
pub struct DHCP_HOST_INFO {
    pub IpAddress: u32,
    pub NetBiosName: *mut core::ffi::c_void,
    pub HostName: *mut core::ffi::c_void,
}

#[repr(C)]
pub struct DHCP_CLIENT_INFO {
    pub ClientIpAddress: u32,
    pub SubnetMask: u32,
    pub ClientHardwareAddress: DHCP_BINARY_DATA,
    pub ClientName: *mut core::ffi::c_void,
    pub ClientComment: *mut core::ffi::c_void,
    pub ClientLeaseExpires: DATE_TIME,
    pub OwnerHost: DHCP_HOST_INFO,
}

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

type DHCP_BINARY_DATA struct {
	DataLength uint32
	Data uintptr
}

type DATE_TIME struct {
	dwLowDateTime uint32
	dwHighDateTime uint32
}

type DHCP_HOST_INFO struct {
	IpAddress uint32
	NetBiosName uintptr
	HostName uintptr
}

type DHCP_CLIENT_INFO struct {
	ClientIpAddress uint32
	SubnetMask uint32
	ClientHardwareAddress DHCP_BINARY_DATA
	ClientName uintptr
	ClientComment uintptr
	ClientLeaseExpires DATE_TIME
	OwnerHost DHCP_HOST_INFO
}

type
  DHCP_BINARY_DATA = record
    DataLength: DWORD;
    Data: Pointer;
  end;

  DATE_TIME = record
    dwLowDateTime: DWORD;
    dwHighDateTime: DWORD;
  end;

  DHCP_HOST_INFO = record
    IpAddress: DWORD;
    NetBiosName: Pointer;
    HostName: Pointer;
  end;

  DHCP_CLIENT_INFO = record
    ClientIpAddress: DWORD;
    SubnetMask: DWORD;
    ClientHardwareAddress: DHCP_BINARY_DATA;
    ClientName: Pointer;
    ClientComment: Pointer;
    ClientLeaseExpires: DATE_TIME;
    OwnerHost: DHCP_HOST_INFO;
  end;

const DHCP_BINARY_DATA = extern struct {
    DataLength: u32,
    Data: ?*anyopaque,
};

const DATE_TIME = extern struct {
    dwLowDateTime: u32,
    dwHighDateTime: u32,
};

const DHCP_HOST_INFO = extern struct {
    IpAddress: u32,
    NetBiosName: ?*anyopaque,
    HostName: ?*anyopaque,
};

const DHCP_CLIENT_INFO = extern struct {
    ClientIpAddress: u32,
    SubnetMask: u32,
    ClientHardwareAddress: DHCP_BINARY_DATA,
    ClientName: ?*anyopaque,
    ClientComment: ?*anyopaque,
    ClientLeaseExpires: DATE_TIME,
    OwnerHost: DHCP_HOST_INFO,
};

type
  DHCP_BINARY_DATA {.bycopy.} = object
    DataLength: uint32
    Data: pointer

  DATE_TIME {.bycopy.} = object
    dwLowDateTime: uint32
    dwHighDateTime: uint32

  DHCP_HOST_INFO {.bycopy.} = object
    IpAddress: uint32
    NetBiosName: pointer
    HostName: pointer

  DHCP_CLIENT_INFO {.bycopy.} = object
    ClientIpAddress: uint32
    SubnetMask: uint32
    ClientHardwareAddress: DHCP_BINARY_DATA
    ClientName: pointer
    ClientComment: pointer
    ClientLeaseExpires: DATE_TIME
    OwnerHost: DHCP_HOST_INFO

struct DHCP_BINARY_DATA
{
    uint DataLength;
    void* Data;
}

struct DATE_TIME
{
    uint dwLowDateTime;
    uint dwHighDateTime;
}

struct DHCP_HOST_INFO
{
    uint IpAddress;
    void* NetBiosName;
    void* HostName;
}

struct DHCP_CLIENT_INFO
{
    uint ClientIpAddress;
    uint SubnetMask;
    DHCP_BINARY_DATA ClientHardwareAddress;
    void* ClientName;
    void* ClientComment;
    DATE_TIME ClientLeaseExpires;
    DHCP_HOST_INFO OwnerHost;
}