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DhcpSetOptionValueV6

関数

クラス/ベンダー指定でIPv6スコープのDHCPオプション値を設定する。

DLLDHCPSAPI.dll呼出規約winapi対応OSwindowsserver2008

シグネチャ

// DHCPSAPI.dll
#include <windows.h>

DWORD DhcpSetOptionValueV6(
    LPWSTR ServerIpAddress,   // optional
    DWORD Flags,
    DWORD OptionId,
    LPWSTR ClassName,   // optional
    LPWSTR VendorName,   // optional
    DHCP_OPTION_SCOPE_INFO6* ScopeInfo,
    DHCP_OPTION_DATA* OptionValue
);

パラメーター

名前	型	方向	説明
ServerIpAddress	LPWSTR	inoptional	対象DHCPv6サーバーのIPアドレスを示すUnicode文字列。ローカルならNULL可。
Flags	DWORD	in	ベンダー固有か否かを示すフラグ。
OptionId	DWORD	in	値を設定するオプションの識別子(コード)。
ClassName	LPWSTR	inoptional	オプションが属するクラス名。既定クラスならNULL可。
VendorName	LPWSTR	inoptional	ベンダー固有の場合のベンダー名。標準ならNULL可。
ScopeInfo	DHCP_OPTION_SCOPE_INFO6*	inout	オプション値の適用範囲を示すDHCP_OPTION_SCOPE_INFO6構造体へのポインタ。
OptionValue	DHCP_OPTION_DATA*	inout	設定するオプションの値データを保持するDHCP_OPTION_DATA構造体へのポインタ。

戻り値の型: DWORD

各言語での呼び出し定義

// DHCPSAPI.dll
#include <windows.h>

DWORD DhcpSetOptionValueV6(
    LPWSTR ServerIpAddress,   // optional
    DWORD Flags,
    DWORD OptionId,
    LPWSTR ClassName,   // optional
    LPWSTR VendorName,   // optional
    DHCP_OPTION_SCOPE_INFO6* ScopeInfo,
    DHCP_OPTION_DATA* OptionValue
);

[DllImport("DHCPSAPI.dll", ExactSpelling = true)]
static extern uint DhcpSetOptionValueV6(
    [MarshalAs(UnmanagedType.LPWStr)] string ServerIpAddress,   // LPWSTR optional
    uint Flags,   // DWORD
    uint OptionId,   // DWORD
    [MarshalAs(UnmanagedType.LPWStr)] string ClassName,   // LPWSTR optional
    [MarshalAs(UnmanagedType.LPWStr)] string VendorName,   // LPWSTR optional
    IntPtr ScopeInfo,   // DHCP_OPTION_SCOPE_INFO6* in/out
    IntPtr OptionValue   // DHCP_OPTION_DATA* in/out
);

<DllImport("DHCPSAPI.dll", ExactSpelling:=True)>
Public Shared Function DhcpSetOptionValueV6(
    <MarshalAs(UnmanagedType.LPWStr)> ServerIpAddress As String,   ' LPWSTR optional
    Flags As UInteger,   ' DWORD
    OptionId As UInteger,   ' DWORD
    <MarshalAs(UnmanagedType.LPWStr)> ClassName As String,   ' LPWSTR optional
    <MarshalAs(UnmanagedType.LPWStr)> VendorName As String,   ' LPWSTR optional
    ScopeInfo As IntPtr,   ' DHCP_OPTION_SCOPE_INFO6* in/out
    OptionValue As IntPtr   ' DHCP_OPTION_DATA* in/out
) As UInteger
End Function

' ServerIpAddress : LPWSTR optional
' Flags : DWORD
' OptionId : DWORD
' ClassName : LPWSTR optional
' VendorName : LPWSTR optional
' ScopeInfo : DHCP_OPTION_SCOPE_INFO6* in/out
' OptionValue : DHCP_OPTION_DATA* in/out
Declare PtrSafe Function DhcpSetOptionValueV6 Lib "dhcpsapi" ( _
    ByVal ServerIpAddress As LongPtr, _
    ByVal Flags As Long, _
    ByVal OptionId As Long, _
    ByVal ClassName As LongPtr, _
    ByVal VendorName As LongPtr, _
    ByVal ScopeInfo As LongPtr, _
    ByVal OptionValue As LongPtr) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

DhcpSetOptionValueV6 = ctypes.windll.dhcpsapi.DhcpSetOptionValueV6
DhcpSetOptionValueV6.restype = wintypes.DWORD
DhcpSetOptionValueV6.argtypes = [
    wintypes.LPCWSTR,  # ServerIpAddress : LPWSTR optional
    wintypes.DWORD,  # Flags : DWORD
    wintypes.DWORD,  # OptionId : DWORD
    wintypes.LPCWSTR,  # ClassName : LPWSTR optional
    wintypes.LPCWSTR,  # VendorName : LPWSTR optional
    ctypes.c_void_p,  # ScopeInfo : DHCP_OPTION_SCOPE_INFO6* in/out
    ctypes.c_void_p,  # OptionValue : DHCP_OPTION_DATA* in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('DHCPSAPI.dll')
DhcpSetOptionValueV6 = Fiddle::Function.new(
  lib['DhcpSetOptionValueV6'],
  [
    Fiddle::TYPE_VOIDP,  # ServerIpAddress : LPWSTR optional
    -Fiddle::TYPE_INT,  # Flags : DWORD
    -Fiddle::TYPE_INT,  # OptionId : DWORD
    Fiddle::TYPE_VOIDP,  # ClassName : LPWSTR optional
    Fiddle::TYPE_VOIDP,  # VendorName : LPWSTR optional
    Fiddle::TYPE_VOIDP,  # ScopeInfo : DHCP_OPTION_SCOPE_INFO6* in/out
    Fiddle::TYPE_VOIDP,  # OptionValue : DHCP_OPTION_DATA* in/out
  ],
  -Fiddle::TYPE_INT)

#[link(name = "dhcpsapi")]
extern "system" {
    fn DhcpSetOptionValueV6(
        ServerIpAddress: *mut u16,  // LPWSTR optional
        Flags: u32,  // DWORD
        OptionId: u32,  // DWORD
        ClassName: *mut u16,  // LPWSTR optional
        VendorName: *mut u16,  // LPWSTR optional
        ScopeInfo: *mut DHCP_OPTION_SCOPE_INFO6,  // DHCP_OPTION_SCOPE_INFO6* in/out
        OptionValue: *mut DHCP_OPTION_DATA  // DHCP_OPTION_DATA* in/out
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("DHCPSAPI.dll")]
public static extern uint DhcpSetOptionValueV6([MarshalAs(UnmanagedType.LPWStr)] string ServerIpAddress, uint Flags, uint OptionId, [MarshalAs(UnmanagedType.LPWStr)] string ClassName, [MarshalAs(UnmanagedType.LPWStr)] string VendorName, IntPtr ScopeInfo, IntPtr OptionValue);
"@
$api = Add-Type -MemberDefinition $sig -Name 'DHCPSAPI_DhcpSetOptionValueV6' -Namespace Win32 -PassThru
# $api::DhcpSetOptionValueV6(ServerIpAddress, Flags, OptionId, ClassName, VendorName, ScopeInfo, OptionValue)

#uselib "DHCPSAPI.dll"
#func global DhcpSetOptionValueV6 "DhcpSetOptionValueV6" sptr, sptr, sptr, sptr, sptr, sptr, sptr
; DhcpSetOptionValueV6 ServerIpAddress, Flags, OptionId, ClassName, VendorName, varptr(ScopeInfo), varptr(OptionValue)   ; 戻り値は stat
; ServerIpAddress : LPWSTR optional -> "sptr"
; Flags : DWORD -> "sptr"
; OptionId : DWORD -> "sptr"
; ClassName : LPWSTR optional -> "sptr"
; VendorName : LPWSTR optional -> "sptr"
; ScopeInfo : DHCP_OPTION_SCOPE_INFO6* in/out -> "sptr"
; OptionValue : DHCP_OPTION_DATA* in/out -> "sptr"
; ※HSP3.7は #func のため戻り値はシステム変数 stat に格納されます。

出力引数:

#uselib "DHCPSAPI.dll"
#cfunc global DhcpSetOptionValueV6 "DhcpSetOptionValueV6" wstr, int, int, wstr, wstr, var, var
; res = DhcpSetOptionValueV6(ServerIpAddress, Flags, OptionId, ClassName, VendorName, ScopeInfo, OptionValue)
; ServerIpAddress : LPWSTR optional -> "wstr"
; Flags : DWORD -> "int"
; OptionId : DWORD -> "int"
; ClassName : LPWSTR optional -> "wstr"
; VendorName : LPWSTR optional -> "wstr"
; ScopeInfo : DHCP_OPTION_SCOPE_INFO6* in/out -> "var"
; OptionValue : DHCP_OPTION_DATA* in/out -> "var"
; ※出力/バッファ引数は var 方式(変数を直接渡す)。varptr 方式にも切替可。#uselib "DHCPSAPI.dll"
#cfunc global DhcpSetOptionValueV6 "DhcpSetOptionValueV6" wstr, int, int, wstr, wstr, sptr, sptr
; res = DhcpSetOptionValueV6(ServerIpAddress, Flags, OptionId, ClassName, VendorName, varptr(ScopeInfo), varptr(OptionValue))
; ServerIpAddress : LPWSTR optional -> "wstr"
; Flags : DWORD -> "int"
; OptionId : DWORD -> "int"
; ClassName : LPWSTR optional -> "wstr"
; VendorName : LPWSTR optional -> "wstr"
; ScopeInfo : DHCP_OPTION_SCOPE_INFO6* in/out -> "sptr"
; OptionValue : DHCP_OPTION_DATA* in/out -> "sptr"
; ※出力/バッファ引数はポインタ方式(token=sptr / 呼び出しは varptr(変数))。

出力引数:

; DWORD DhcpSetOptionValueV6(LPWSTR ServerIpAddress, DWORD Flags, DWORD OptionId, LPWSTR ClassName, LPWSTR VendorName, DHCP_OPTION_SCOPE_INFO6* ScopeInfo, DHCP_OPTION_DATA* OptionValue)
#uselib "DHCPSAPI.dll"
#cfunc global DhcpSetOptionValueV6 "DhcpSetOptionValueV6" wstr, int, int, wstr, wstr, var, var
; res = DhcpSetOptionValueV6(ServerIpAddress, Flags, OptionId, ClassName, VendorName, ScopeInfo, OptionValue)
; ServerIpAddress : LPWSTR optional -> "wstr"
; Flags : DWORD -> "int"
; OptionId : DWORD -> "int"
; ClassName : LPWSTR optional -> "wstr"
; VendorName : LPWSTR optional -> "wstr"
; ScopeInfo : DHCP_OPTION_SCOPE_INFO6* in/out -> "var"
; OptionValue : DHCP_OPTION_DATA* in/out -> "var"
; ※出力/バッファ引数は var 方式(変数を直接渡す)。varptr 方式にも切替可。; DWORD DhcpSetOptionValueV6(LPWSTR ServerIpAddress, DWORD Flags, DWORD OptionId, LPWSTR ClassName, LPWSTR VendorName, DHCP_OPTION_SCOPE_INFO6* ScopeInfo, DHCP_OPTION_DATA* OptionValue)
#uselib "DHCPSAPI.dll"
#cfunc global DhcpSetOptionValueV6 "DhcpSetOptionValueV6" wstr, int, int, wstr, wstr, intptr, intptr
; res = DhcpSetOptionValueV6(ServerIpAddress, Flags, OptionId, ClassName, VendorName, varptr(ScopeInfo), varptr(OptionValue))
; ServerIpAddress : LPWSTR optional -> "wstr"
; Flags : DWORD -> "int"
; OptionId : DWORD -> "int"
; ClassName : LPWSTR optional -> "wstr"
; VendorName : LPWSTR optional -> "wstr"
; ScopeInfo : DHCP_OPTION_SCOPE_INFO6* in/out -> "intptr"
; OptionValue : DHCP_OPTION_DATA* in/out -> "intptr"
; ※出力/バッファ引数はポインタ方式(token=intptr / 呼び出しは varptr(変数))。

import (
	"golang.org/x/sys/windows"
	"unsafe"
)

var (
	dhcpsapi = windows.NewLazySystemDLL("DHCPSAPI.dll")
	procDhcpSetOptionValueV6 = dhcpsapi.NewProc("DhcpSetOptionValueV6")
)

// ServerIpAddress (LPWSTR optional), Flags (DWORD), OptionId (DWORD), ClassName (LPWSTR optional), VendorName (LPWSTR optional), ScopeInfo (DHCP_OPTION_SCOPE_INFO6* in/out), OptionValue (DHCP_OPTION_DATA* in/out)
r1, _, err := procDhcpSetOptionValueV6.Call(
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(ServerIpAddress))),
	uintptr(Flags),
	uintptr(OptionId),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(ClassName))),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(VendorName))),
	uintptr(ScopeInfo),
	uintptr(OptionValue),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function DhcpSetOptionValueV6(
  ServerIpAddress: PWideChar;   // LPWSTR optional
  Flags: DWORD;   // DWORD
  OptionId: DWORD;   // DWORD
  ClassName: PWideChar;   // LPWSTR optional
  VendorName: PWideChar;   // LPWSTR optional
  ScopeInfo: Pointer;   // DHCP_OPTION_SCOPE_INFO6* in/out
  OptionValue: Pointer   // DHCP_OPTION_DATA* in/out
): DWORD; stdcall;
  external 'DHCPSAPI.dll' name 'DhcpSetOptionValueV6';

result := DllCall("DHCPSAPI\DhcpSetOptionValueV6"
    , "WStr", ServerIpAddress   ; LPWSTR optional
    , "UInt", Flags   ; DWORD
    , "UInt", OptionId   ; DWORD
    , "WStr", ClassName   ; LPWSTR optional
    , "WStr", VendorName   ; LPWSTR optional
    , "Ptr", ScopeInfo   ; DHCP_OPTION_SCOPE_INFO6* in/out
    , "Ptr", OptionValue   ; DHCP_OPTION_DATA* in/out
    , "UInt")   ; return: DWORD

●DhcpSetOptionValueV6(ServerIpAddress, Flags, OptionId, ClassName, VendorName, ScopeInfo, OptionValue) = DLL("DHCPSAPI.dll", "dword DhcpSetOptionValueV6(char*, dword, dword, char*, char*, void*, void*)")
# 呼び出し: DhcpSetOptionValueV6(ServerIpAddress, Flags, OptionId, ClassName, VendorName, ScopeInfo, OptionValue)
# ServerIpAddress : LPWSTR optional -> "char*"
# Flags : DWORD -> "dword"
# OptionId : DWORD -> "dword"
# ClassName : LPWSTR optional -> "char*"
# VendorName : LPWSTR optional -> "char*"
# ScopeInfo : DHCP_OPTION_SCOPE_INFO6* in/out -> "void*"
# OptionValue : DHCP_OPTION_DATA* in/out -> "void*"
# なでしこ1は32bit・ANSI(Shift_JIS)。文字列=char*(ANSI)、ポインタ/ハンドル=void*(4byte)。

const std = @import("std");

extern "dhcpsapi" fn DhcpSetOptionValueV6(
    ServerIpAddress: [*c]const u16, // LPWSTR optional
    Flags: u32, // DWORD
    OptionId: u32, // DWORD
    ClassName: [*c]const u16, // LPWSTR optional
    VendorName: [*c]const u16, // LPWSTR optional
    ScopeInfo: [*c]DHCP_OPTION_SCOPE_INFO6, // DHCP_OPTION_SCOPE_INFO6* in/out
    OptionValue: [*c]DHCP_OPTION_DATA // DHCP_OPTION_DATA* in/out
) callconv(std.os.windows.WINAPI) u32;

proc DhcpSetOptionValueV6(
    ServerIpAddress: WideCString,  # LPWSTR optional
    Flags: uint32,  # DWORD
    OptionId: uint32,  # DWORD
    ClassName: WideCString,  # LPWSTR optional
    VendorName: WideCString,  # LPWSTR optional
    ScopeInfo: ptr DHCP_OPTION_SCOPE_INFO6,  # DHCP_OPTION_SCOPE_INFO6* in/out
    OptionValue: ptr DHCP_OPTION_DATA  # DHCP_OPTION_DATA* in/out
): uint32 {.importc: "DhcpSetOptionValueV6", stdcall, dynlib: "DHCPSAPI.dll".}

pragma(lib, "dhcpsapi");
extern(Windows)
uint DhcpSetOptionValueV6(
    const(wchar)* ServerIpAddress,   // LPWSTR optional
    uint Flags,   // DWORD
    uint OptionId,   // DWORD
    const(wchar)* ClassName,   // LPWSTR optional
    const(wchar)* VendorName,   // LPWSTR optional
    DHCP_OPTION_SCOPE_INFO6* ScopeInfo,   // DHCP_OPTION_SCOPE_INFO6* in/out
    DHCP_OPTION_DATA* OptionValue   // DHCP_OPTION_DATA* in/out
);

ccall((:DhcpSetOptionValueV6, "DHCPSAPI.dll"), stdcall, UInt32,
      (Cwstring, UInt32, UInt32, Cwstring, Cwstring, Ptr{DHCP_OPTION_SCOPE_INFO6}, Ptr{DHCP_OPTION_DATA}),
      ServerIpAddress, Flags, OptionId, ClassName, VendorName, ScopeInfo, OptionValue)
# ServerIpAddress : LPWSTR optional -> Cwstring
# Flags : DWORD -> UInt32
# OptionId : DWORD -> UInt32
# ClassName : LPWSTR optional -> Cwstring
# VendorName : LPWSTR optional -> Cwstring
# ScopeInfo : DHCP_OPTION_SCOPE_INFO6* in/out -> Ptr{DHCP_OPTION_SCOPE_INFO6}
# OptionValue : DHCP_OPTION_DATA* in/out -> Ptr{DHCP_OPTION_DATA}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
uint32_t DhcpSetOptionValueV6(
    const uint16_t* ServerIpAddress,
    uint32_t Flags,
    uint32_t OptionId,
    const uint16_t* ClassName,
    const uint16_t* VendorName,
    void* ScopeInfo,
    void* OptionValue);
]]
local dhcpsapi = ffi.load("dhcpsapi")
-- dhcpsapi.DhcpSetOptionValueV6(ServerIpAddress, Flags, OptionId, ClassName, VendorName, ScopeInfo, OptionValue)
-- ServerIpAddress : LPWSTR optional
-- Flags : DWORD
-- OptionId : DWORD
-- ClassName : LPWSTR optional
-- VendorName : LPWSTR optional
-- ScopeInfo : DHCP_OPTION_SCOPE_INFO6* in/out
-- OptionValue : DHCP_OPTION_DATA* in/out
-- 構造体/GUIDへのポインタは cdef が通るよう void* で表記(実型は各引数コメント参照)。値渡し構造体・enum は対応する typedef を cdef に追加すること。

const koffi = require('koffi');
const lib = koffi.load('DHCPSAPI.dll');
const DhcpSetOptionValueV6 = lib.func('__stdcall', 'DhcpSetOptionValueV6', 'uint32_t', ['str16', 'uint32_t', 'uint32_t', 'str16', 'str16', 'void *', 'void *']);
// DhcpSetOptionValueV6(ServerIpAddress, Flags, OptionId, ClassName, VendorName, ScopeInfo, OptionValue)
// ServerIpAddress : LPWSTR optional -> 'str16'
// Flags : DWORD -> 'uint32_t'
// OptionId : DWORD -> 'uint32_t'
// ClassName : LPWSTR optional -> 'str16'
// VendorName : LPWSTR optional -> 'str16'
// ScopeInfo : DHCP_OPTION_SCOPE_INFO6* in/out -> 'void *'
// OptionValue : DHCP_OPTION_DATA* in/out -> 'void *'
// 出力ポインタは koffi.out(...) で包む。構造体は koffi.struct で定義。

const lib = Deno.dlopen("DHCPSAPI.dll", {
  DhcpSetOptionValueV6: { parameters: ["buffer", "u32", "u32", "buffer", "buffer", "pointer", "pointer"], result: "u32" },
});
// lib.symbols.DhcpSetOptionValueV6(ServerIpAddress, Flags, OptionId, ClassName, VendorName, ScopeInfo, OptionValue)
// ServerIpAddress : LPWSTR optional -> "buffer"
// Flags : DWORD -> "u32"
// OptionId : DWORD -> "u32"
// ClassName : LPWSTR optional -> "buffer"
// VendorName : LPWSTR optional -> "buffer"
// ScopeInfo : DHCP_OPTION_SCOPE_INFO6* in/out -> "pointer"
// OptionValue : DHCP_OPTION_DATA* in/out -> "pointer"
// 文字列引数は "buffer"(NUL 終端のバイト列を Uint8Array で渡す)。
// 値渡し構造体は { struct: [ ...field types... ] } を使用。

<?php
$ffi = FFI::cdef(<<<C
uint32_t DhcpSetOptionValueV6(
    const uint16_t* ServerIpAddress,
    uint32_t Flags,
    uint32_t OptionId,
    const uint16_t* ClassName,
    const uint16_t* VendorName,
    void* ScopeInfo,
    void* OptionValue);
C, "DHCPSAPI.dll");
// $ffi->DhcpSetOptionValueV6(ServerIpAddress, Flags, OptionId, ClassName, VendorName, ScopeInfo, OptionValue);
// ServerIpAddress : LPWSTR optional
// Flags : DWORD
// OptionId : DWORD
// ClassName : LPWSTR optional
// VendorName : LPWSTR optional
// ScopeInfo : DHCP_OPTION_SCOPE_INFO6* in/out
// OptionValue : DHCP_OPTION_DATA* in/out
// 構造体/GUIDへのポインタは cdef が通るよう void* で表記(実型は各引数コメント参照)。値渡し構造体・enum は対応する typedef を cdef に追加すること。
// WINAPI(stdcall): x64 では呼出規約が統一されるため問題なし。x86 では __stdcall 対応のラッパが必要な場合あり。

import com.sun.jna.*;
import com.sun.jna.ptr.*;
import com.sun.jna.win32.StdCallLibrary;
import com.sun.jna.win32.W32APIOptions;

public interface Dhcpsapi extends StdCallLibrary {
    Dhcpsapi INSTANCE = Native.load("dhcpsapi", Dhcpsapi.class);
    int DhcpSetOptionValueV6(
        WString ServerIpAddress,   // LPWSTR optional
        int Flags,   // DWORD
        int OptionId,   // DWORD
        WString ClassName,   // LPWSTR optional
        WString VendorName,   // LPWSTR optional
        Pointer ScopeInfo,   // DHCP_OPTION_SCOPE_INFO6* in/out
        Pointer OptionValue   // DHCP_OPTION_DATA* in/out
    );
}

@[Link("dhcpsapi")]
lib LibDHCPSAPI
  fun DhcpSetOptionValueV6 = DhcpSetOptionValueV6(
    ServerIpAddress : UInt16*,   # LPWSTR optional
    Flags : UInt32,   # DWORD
    OptionId : UInt32,   # DWORD
    ClassName : UInt16*,   # LPWSTR optional
    VendorName : UInt16*,   # LPWSTR optional
    ScopeInfo : DHCP_OPTION_SCOPE_INFO6*,   # DHCP_OPTION_SCOPE_INFO6* in/out
    OptionValue : DHCP_OPTION_DATA*   # DHCP_OPTION_DATA* in/out
  ) : UInt32
end
# 構造体/GUID/enum は lib 内に対応する型定義が必要。
# 呼出規約: x64 は規約統一のため OK。x86(32bit)は WINAPI=stdcall だが Crystal の fun に stdcall 付与構文がなく非対応。

import 'dart:ffi';
import 'package:ffi/ffi.dart';

typedef DhcpSetOptionValueV6Native = Uint32 Function(Pointer<Utf16>, Uint32, Uint32, Pointer<Utf16>, Pointer<Utf16>, Pointer<Void>, Pointer<Void>);
typedef DhcpSetOptionValueV6Dart = int Function(Pointer<Utf16>, int, int, Pointer<Utf16>, Pointer<Utf16>, Pointer<Void>, Pointer<Void>);
final DhcpSetOptionValueV6 = DynamicLibrary.open('DHCPSAPI.dll')
    .lookupFunction<DhcpSetOptionValueV6Native, DhcpSetOptionValueV6Dart>('DhcpSetOptionValueV6');
// ServerIpAddress : LPWSTR optional -> Pointer<Utf16>
// Flags : DWORD -> Uint32
// OptionId : DWORD -> Uint32
// ClassName : LPWSTR optional -> Pointer<Utf16>
// VendorName : LPWSTR optional -> Pointer<Utf16>
// ScopeInfo : DHCP_OPTION_SCOPE_INFO6* in/out -> Pointer<Void>
// OptionValue : DHCP_OPTION_DATA* in/out -> Pointer<Void>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function DhcpSetOptionValueV6(
  ServerIpAddress: PWideChar;   // LPWSTR optional
  Flags: DWORD;   // DWORD
  OptionId: DWORD;   // DWORD
  ClassName: PWideChar;   // LPWSTR optional
  VendorName: PWideChar;   // LPWSTR optional
  ScopeInfo: Pointer;   // DHCP_OPTION_SCOPE_INFO6* in/out
  OptionValue: Pointer   // DHCP_OPTION_DATA* in/out
): DWORD; stdcall;
  external 'DHCPSAPI.dll' name 'DhcpSetOptionValueV6';

import Foreign
import Foreign.C.Types
import Foreign.C.String

foreign import stdcall safe "DhcpSetOptionValueV6"
  c_DhcpSetOptionValueV6 :: CWString -> Word32 -> Word32 -> CWString -> CWString -> Ptr () -> Ptr () -> IO Word32
-- ServerIpAddress : LPWSTR optional -> CWString
-- Flags : DWORD -> Word32
-- OptionId : DWORD -> Word32
-- ClassName : LPWSTR optional -> CWString
-- VendorName : LPWSTR optional -> CWString
-- ScopeInfo : DHCP_OPTION_SCOPE_INFO6* in/out -> Ptr ()
-- OptionValue : DHCP_OPTION_DATA* in/out -> Ptr ()
-- 要 GHC(Windows)。stdcall は x64 では ccall として扱われる。ブロックする API は safe 呼び出し推奨。

open Ctypes
open Foreign

let dhcpsetoptionvaluev6 =
  foreign "DhcpSetOptionValueV6"
    ((ptr uint16_t) @-> uint32_t @-> uint32_t @-> (ptr uint16_t) @-> (ptr uint16_t) @-> (ptr void) @-> (ptr void) @-> returning uint32_t)
(* ServerIpAddress : LPWSTR optional -> (ptr uint16_t) *)
(* Flags : DWORD -> uint32_t *)
(* OptionId : DWORD -> uint32_t *)
(* ClassName : LPWSTR optional -> (ptr uint16_t) *)
(* VendorName : LPWSTR optional -> (ptr uint16_t) *)
(* ScopeInfo : DHCP_OPTION_SCOPE_INFO6* in/out -> (ptr void) *)
(* OptionValue : DHCP_OPTION_DATA* in/out -> (ptr void) *)
(* foreign は cdecl 前提。x64 Windows では WINAPI と一致。構造体は ctypes structure を定義のこと。 *)

(cffi:define-foreign-library dhcpsapi (t "DHCPSAPI.dll"))
(cffi:use-foreign-library dhcpsapi)

(cffi:defcfun ("DhcpSetOptionValueV6" dhcp-set-option-value-v6 :convention :stdcall) :uint32
  (server-ip-address (:string :encoding :utf-16le))   ; LPWSTR optional
  (flags :uint32)   ; DWORD
  (option-id :uint32)   ; DWORD
  (class-name (:string :encoding :utf-16le))   ; LPWSTR optional
  (vendor-name (:string :encoding :utf-16le))   ; LPWSTR optional
  (scope-info :pointer)   ; DHCP_OPTION_SCOPE_INFO6* in/out
  (option-value :pointer))   ; DHCP_OPTION_DATA* in/out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $DhcpSetOptionValueV6 = Win32::API::More->new('DHCPSAPI',
    'DWORD DhcpSetOptionValueV6(LPCWSTR ServerIpAddress, DWORD Flags, DWORD OptionId, LPCWSTR ClassName, LPCWSTR VendorName, LPVOID ScopeInfo, LPVOID OptionValue)');
# my $ret = $DhcpSetOptionValueV6->Call($ServerIpAddress, $Flags, $OptionId, $ClassName, $VendorName, $ScopeInfo, $OptionValue);
# ServerIpAddress : LPWSTR optional -> LPCWSTR
# Flags : DWORD -> DWORD
# OptionId : DWORD -> DWORD
# ClassName : LPWSTR optional -> LPCWSTR
# VendorName : LPWSTR optional -> LPCWSTR
# ScopeInfo : DHCP_OPTION_SCOPE_INFO6* in/out -> LPVOID
# OptionValue : DHCP_OPTION_DATA* in/out -> LPVOID
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。

DhcpSetOptionValueV6

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