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RpcGetAuthorizationContextForClient

関数
クライアントの認可コンテキストを取得する。
DLLRPCRT4.dll呼出規約winapi対応OSWindows XP 以降

シグネチャ

// RPCRT4.dll
#include <windows.h>

RPC_STATUS RpcGetAuthorizationContextForClient(
    void* ClientBinding,   // optional
    BOOL ImpersonateOnReturn,
    void* Reserved1,   // optional
    LONGLONG* pExpirationTime,   // optional
    LUID Reserved2,
    DWORD Reserved3,
    void* Reserved4,   // optional
    void** pAuthzClientContext
);

パラメーター

名前方向説明
ClientBindingvoid*inoptionalクライアントを表すサーバー側バインディングハンドル。NULL可で現在の呼び出しを対象とする。
ImpersonateOnReturnBOOLinTRUEで関数復帰時にクライアントを偽装した状態を維持するかを示すフラグ。
Reserved1void*inoptional予約済みパラメータ。NULLを指定する。
pExpirationTimeLONGLONG*inoptional認可コンテキストの有効期限を受け取るLONGLONGへのポインタ。
Reserved2LUIDin予約済みのLUID。ゼロLUIDを指定する。
Reserved3DWORDin予約済みのDWORD。0を指定する。
Reserved4void*inoptional予約済みパラメータ。NULLを指定する。
pAuthzClientContextvoid**out生成された認可クライアントコンテキスト(AUTHZ)を受け取るポインタのアドレス。

戻り値の型: RPC_STATUS

各言語での呼び出し定義

// RPCRT4.dll
#include <windows.h>

RPC_STATUS RpcGetAuthorizationContextForClient(
    void* ClientBinding,   // optional
    BOOL ImpersonateOnReturn,
    void* Reserved1,   // optional
    LONGLONG* pExpirationTime,   // optional
    LUID Reserved2,
    DWORD Reserved3,
    void* Reserved4,   // optional
    void** pAuthzClientContext
);
[DllImport("RPCRT4.dll", ExactSpelling = true)]
static extern int RpcGetAuthorizationContextForClient(
    IntPtr ClientBinding,   // void* optional
    bool ImpersonateOnReturn,   // BOOL
    IntPtr Reserved1,   // void* optional
    IntPtr pExpirationTime,   // LONGLONG* optional
    LUID Reserved2,   // LUID
    uint Reserved3,   // DWORD
    IntPtr Reserved4,   // void* optional
    IntPtr pAuthzClientContext   // void** out
);
<DllImport("RPCRT4.dll", ExactSpelling:=True)>
Public Shared Function RpcGetAuthorizationContextForClient(
    ClientBinding As IntPtr,   ' void* optional
    ImpersonateOnReturn As Boolean,   ' BOOL
    Reserved1 As IntPtr,   ' void* optional
    pExpirationTime As IntPtr,   ' LONGLONG* optional
    Reserved2 As LUID,   ' LUID
    Reserved3 As UInteger,   ' DWORD
    Reserved4 As IntPtr,   ' void* optional
    pAuthzClientContext As IntPtr   ' void** out
) As Integer
End Function
' ClientBinding : void* optional
' ImpersonateOnReturn : BOOL
' Reserved1 : void* optional
' pExpirationTime : LONGLONG* optional
' Reserved2 : LUID
' Reserved3 : DWORD
' Reserved4 : void* optional
' pAuthzClientContext : void** out
Declare PtrSafe Function RpcGetAuthorizationContextForClient Lib "rpcrt4" ( _
    ByVal ClientBinding As LongPtr, _
    ByVal ImpersonateOnReturn As Long, _
    ByVal Reserved1 As LongPtr, _
    ByVal pExpirationTime As LongPtr, _
    ByVal Reserved2 As LongPtr, _
    ByVal Reserved3 As Long, _
    ByVal Reserved4 As LongPtr, _
    ByVal pAuthzClientContext 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

RpcGetAuthorizationContextForClient = ctypes.windll.rpcrt4.RpcGetAuthorizationContextForClient
RpcGetAuthorizationContextForClient.restype = ctypes.c_int
RpcGetAuthorizationContextForClient.argtypes = [
    ctypes.POINTER(None),  # ClientBinding : void* optional
    wintypes.BOOL,  # ImpersonateOnReturn : BOOL
    ctypes.POINTER(None),  # Reserved1 : void* optional
    ctypes.POINTER(ctypes.c_longlong),  # pExpirationTime : LONGLONG* optional
    LUID,  # Reserved2 : LUID
    wintypes.DWORD,  # Reserved3 : DWORD
    ctypes.POINTER(None),  # Reserved4 : void* optional
    ctypes.c_void_p,  # pAuthzClientContext : void** out
]
require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('RPCRT4.dll')
RpcGetAuthorizationContextForClient = Fiddle::Function.new(
  lib['RpcGetAuthorizationContextForClient'],
  [
    Fiddle::TYPE_VOIDP,  # ClientBinding : void* optional
    Fiddle::TYPE_INT,  # ImpersonateOnReturn : BOOL
    Fiddle::TYPE_VOIDP,  # Reserved1 : void* optional
    Fiddle::TYPE_VOIDP,  # pExpirationTime : LONGLONG* optional
    Fiddle::TYPE_VOIDP,  # Reserved2 : LUID
    -Fiddle::TYPE_INT,  # Reserved3 : DWORD
    Fiddle::TYPE_VOIDP,  # Reserved4 : void* optional
    Fiddle::TYPE_VOIDP,  # pAuthzClientContext : void** out
  ],
  Fiddle::TYPE_INT)
#[link(name = "rpcrt4")]
extern "system" {
    fn RpcGetAuthorizationContextForClient(
        ClientBinding: *mut (),  // void* optional
        ImpersonateOnReturn: i32,  // BOOL
        Reserved1: *mut (),  // void* optional
        pExpirationTime: *mut i64,  // LONGLONG* optional
        Reserved2: LUID,  // LUID
        Reserved3: u32,  // DWORD
        Reserved4: *mut (),  // void* optional
        pAuthzClientContext: *mut *mut ()  // void** out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.
$sig = @"
[DllImport("RPCRT4.dll")]
public static extern int RpcGetAuthorizationContextForClient(IntPtr ClientBinding, bool ImpersonateOnReturn, IntPtr Reserved1, IntPtr pExpirationTime, LUID Reserved2, uint Reserved3, IntPtr Reserved4, IntPtr pAuthzClientContext);
"@
$api = Add-Type -MemberDefinition $sig -Name 'RPCRT4_RpcGetAuthorizationContextForClient' -Namespace Win32 -PassThru
# $api::RpcGetAuthorizationContextForClient(ClientBinding, ImpersonateOnReturn, Reserved1, pExpirationTime, Reserved2, Reserved3, Reserved4, pAuthzClientContext)
#uselib "RPCRT4.dll"
#func global RpcGetAuthorizationContextForClient "RpcGetAuthorizationContextForClient" sptr, sptr, sptr, sptr, sptr, sptr, sptr, sptr
; RpcGetAuthorizationContextForClient ClientBinding, ImpersonateOnReturn, Reserved1, varptr(pExpirationTime), Reserved2, Reserved3, Reserved4, pAuthzClientContext   ; 戻り値は stat
; ClientBinding : void* optional -> "sptr"
; ImpersonateOnReturn : BOOL -> "sptr"
; Reserved1 : void* optional -> "sptr"
; pExpirationTime : LONGLONG* optional -> "sptr"
; Reserved2 : LUID -> "sptr"
; Reserved3 : DWORD -> "sptr"
; Reserved4 : void* optional -> "sptr"
; pAuthzClientContext : void** out -> "sptr"
; ※値渡し構造体は直接渡せません。intにパック、または var で構造体変数を渡してください。
; ※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 "RPCRT4.dll"
#cfunc global RpcGetAuthorizationContextForClient "RpcGetAuthorizationContextForClient" sptr, int, sptr, var, int, int, sptr, sptr
; res = RpcGetAuthorizationContextForClient(ClientBinding, ImpersonateOnReturn, Reserved1, pExpirationTime, Reserved2, Reserved3, Reserved4, pAuthzClientContext)
; ClientBinding : void* optional -> "sptr"
; ImpersonateOnReturn : BOOL -> "int"
; Reserved1 : void* optional -> "sptr"
; pExpirationTime : LONGLONG* optional -> "var"
; Reserved2 : LUID -> "int"
; Reserved3 : DWORD -> "int"
; Reserved4 : void* optional -> "sptr"
; pAuthzClientContext : void** out -> "sptr"
; ※値渡し構造体は直接渡せません。intにパック、または var で構造体変数を渡してください。
; ※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。
出力引数:
; RPC_STATUS RpcGetAuthorizationContextForClient(void* ClientBinding, BOOL ImpersonateOnReturn, void* Reserved1, LONGLONG* pExpirationTime, LUID Reserved2, DWORD Reserved3, void* Reserved4, void** pAuthzClientContext)
#uselib "RPCRT4.dll"
#cfunc global RpcGetAuthorizationContextForClient "RpcGetAuthorizationContextForClient" intptr, int, intptr, var, int, int, intptr, intptr
; res = RpcGetAuthorizationContextForClient(ClientBinding, ImpersonateOnReturn, Reserved1, pExpirationTime, Reserved2, Reserved3, Reserved4, pAuthzClientContext)
; ClientBinding : void* optional -> "intptr"
; ImpersonateOnReturn : BOOL -> "int"
; Reserved1 : void* optional -> "intptr"
; pExpirationTime : LONGLONG* optional -> "var"
; Reserved2 : LUID -> "int"
; Reserved3 : DWORD -> "int"
; Reserved4 : void* optional -> "intptr"
; pAuthzClientContext : void** out -> "intptr"
; ※値渡し構造体は直接渡せません。intにパック、または var で構造体変数を渡してください。
; ※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。
import (
	"golang.org/x/sys/windows"
	"unsafe"
)

var (
	rpcrt4 = windows.NewLazySystemDLL("RPCRT4.dll")
	procRpcGetAuthorizationContextForClient = rpcrt4.NewProc("RpcGetAuthorizationContextForClient")
)

// ClientBinding (void* optional), ImpersonateOnReturn (BOOL), Reserved1 (void* optional), pExpirationTime (LONGLONG* optional), Reserved2 (LUID), Reserved3 (DWORD), Reserved4 (void* optional), pAuthzClientContext (void** out)
r1, _, err := procRpcGetAuthorizationContextForClient.Call(
	uintptr(ClientBinding),
	uintptr(ImpersonateOnReturn),
	uintptr(Reserved1),
	uintptr(pExpirationTime),
	uintptr(Reserved2),
	uintptr(Reserved3),
	uintptr(Reserved4),
	uintptr(pAuthzClientContext),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // RPC_STATUS
function RpcGetAuthorizationContextForClient(
  ClientBinding: Pointer;   // void* optional
  ImpersonateOnReturn: BOOL;   // BOOL
  Reserved1: Pointer;   // void* optional
  pExpirationTime: Pointer;   // LONGLONG* optional
  Reserved2: LUID;   // LUID
  Reserved3: DWORD;   // DWORD
  Reserved4: Pointer;   // void* optional
  pAuthzClientContext: Pointer   // void** out
): Integer; stdcall;
  external 'RPCRT4.dll' name 'RpcGetAuthorizationContextForClient';
result := DllCall("RPCRT4\RpcGetAuthorizationContextForClient"
    , "Ptr", ClientBinding   ; void* optional
    , "Int", ImpersonateOnReturn   ; BOOL
    , "Ptr", Reserved1   ; void* optional
    , "Ptr", pExpirationTime   ; LONGLONG* optional
    , "Ptr", Reserved2   ; LUID
    , "UInt", Reserved3   ; DWORD
    , "Ptr", Reserved4   ; void* optional
    , "Ptr", pAuthzClientContext   ; void** out
    , "Int")   ; return: RPC_STATUS
●RpcGetAuthorizationContextForClient(ClientBinding, ImpersonateOnReturn, Reserved1, pExpirationTime, Reserved2, Reserved3, Reserved4, pAuthzClientContext) = DLL("RPCRT4.dll", "int RpcGetAuthorizationContextForClient(void*, bool, void*, void*, void*, dword, void*, void*)")
# 呼び出し: RpcGetAuthorizationContextForClient(ClientBinding, ImpersonateOnReturn, Reserved1, pExpirationTime, Reserved2, Reserved3, Reserved4, pAuthzClientContext)
# ClientBinding : void* optional -> "void*"
# ImpersonateOnReturn : BOOL -> "bool"
# Reserved1 : void* optional -> "void*"
# pExpirationTime : LONGLONG* optional -> "void*"
# Reserved2 : LUID -> "void*"
# Reserved3 : DWORD -> "dword"
# Reserved4 : void* optional -> "void*"
# pAuthzClientContext : void** 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 "rpcrt4" fn RpcGetAuthorizationContextForClient(
    ClientBinding: ?*anyopaque, // void* optional
    ImpersonateOnReturn: i32, // BOOL
    Reserved1: ?*anyopaque, // void* optional
    pExpirationTime: [*c]i64, // LONGLONG* optional
    Reserved2: LUID, // LUID
    Reserved3: u32, // DWORD
    Reserved4: ?*anyopaque, // void* optional
    pAuthzClientContext: ?*anyopaque // void** out
) callconv(std.os.windows.WINAPI) i32;
proc RpcGetAuthorizationContextForClient(
    ClientBinding: pointer,  # void* optional
    ImpersonateOnReturn: int32,  # BOOL
    Reserved1: pointer,  # void* optional
    pExpirationTime: ptr int64,  # LONGLONG* optional
    Reserved2: LUID,  # LUID
    Reserved3: uint32,  # DWORD
    Reserved4: pointer,  # void* optional
    pAuthzClientContext: pointer  # void** out
): int32 {.importc: "RpcGetAuthorizationContextForClient", stdcall, dynlib: "RPCRT4.dll".}
pragma(lib, "rpcrt4");
extern(Windows)
int RpcGetAuthorizationContextForClient(
    void* ClientBinding,   // void* optional
    int ImpersonateOnReturn,   // BOOL
    void* Reserved1,   // void* optional
    long* pExpirationTime,   // LONGLONG* optional
    LUID Reserved2,   // LUID
    uint Reserved3,   // DWORD
    void* Reserved4,   // void* optional
    void** pAuthzClientContext   // void** out
);
ccall((:RpcGetAuthorizationContextForClient, "RPCRT4.dll"), stdcall, Int32,
      (Ptr{Cvoid}, Int32, Ptr{Cvoid}, Ptr{Int64}, LUID, UInt32, Ptr{Cvoid}, Ptr{Cvoid}),
      ClientBinding, ImpersonateOnReturn, Reserved1, pExpirationTime, Reserved2, Reserved3, Reserved4, pAuthzClientContext)
# ClientBinding : void* optional -> Ptr{Cvoid}
# ImpersonateOnReturn : BOOL -> Int32
# Reserved1 : void* optional -> Ptr{Cvoid}
# pExpirationTime : LONGLONG* optional -> Ptr{Int64}
# Reserved2 : LUID -> LUID
# Reserved3 : DWORD -> UInt32
# Reserved4 : void* optional -> Ptr{Cvoid}
# pAuthzClientContext : void** out -> Ptr{Cvoid}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。
local ffi = require("ffi")
ffi.cdef[[
int32_t RpcGetAuthorizationContextForClient(
    void* ClientBinding,
    int32_t ImpersonateOnReturn,
    void* Reserved1,
    int64_t* pExpirationTime,
    LUID Reserved2,
    uint32_t Reserved3,
    void* Reserved4,
    void** pAuthzClientContext);
]]
local rpcrt4 = ffi.load("rpcrt4")
-- rpcrt4.RpcGetAuthorizationContextForClient(ClientBinding, ImpersonateOnReturn, Reserved1, pExpirationTime, Reserved2, Reserved3, Reserved4, pAuthzClientContext)
-- ClientBinding : void* optional
-- ImpersonateOnReturn : BOOL
-- Reserved1 : void* optional
-- pExpirationTime : LONGLONG* optional
-- Reserved2 : LUID
-- Reserved3 : DWORD
-- Reserved4 : void* optional
-- pAuthzClientContext : void** 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('RPCRT4.dll');
const RpcGetAuthorizationContextForClient = lib.func('__stdcall', 'RpcGetAuthorizationContextForClient', 'int32_t', ['void *', 'int32_t', 'void *', 'int64_t *', 'LUID', 'uint32_t', 'void *', 'void *']);
// RpcGetAuthorizationContextForClient(ClientBinding, ImpersonateOnReturn, Reserved1, pExpirationTime, Reserved2, Reserved3, Reserved4, pAuthzClientContext)
// ClientBinding : void* optional -> 'void *'
// ImpersonateOnReturn : BOOL -> 'int32_t'
// Reserved1 : void* optional -> 'void *'
// pExpirationTime : LONGLONG* optional -> 'int64_t *'
// Reserved2 : LUID -> 'LUID'
// Reserved3 : DWORD -> 'uint32_t'
// Reserved4 : void* optional -> 'void *'
// pAuthzClientContext : void** 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("RPCRT4.dll", {
  RpcGetAuthorizationContextForClient: { parameters: ["pointer", "i32", "pointer", "pointer", "buffer", "u32", "pointer", "pointer"], result: "i32" },
});
// lib.symbols.RpcGetAuthorizationContextForClient(ClientBinding, ImpersonateOnReturn, Reserved1, pExpirationTime, Reserved2, Reserved3, Reserved4, pAuthzClientContext)
// ClientBinding : void* optional -> "pointer"
// ImpersonateOnReturn : BOOL -> "i32"
// Reserved1 : void* optional -> "pointer"
// pExpirationTime : LONGLONG* optional -> "pointer"
// Reserved2 : LUID -> "buffer"
// Reserved3 : DWORD -> "u32"
// Reserved4 : void* optional -> "pointer"
// pAuthzClientContext : void** 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
int32_t RpcGetAuthorizationContextForClient(
    void* ClientBinding,
    int32_t ImpersonateOnReturn,
    void* Reserved1,
    int64_t* pExpirationTime,
    LUID Reserved2,
    uint32_t Reserved3,
    void* Reserved4,
    void** pAuthzClientContext);
C, "RPCRT4.dll");
// $ffi->RpcGetAuthorizationContextForClient(ClientBinding, ImpersonateOnReturn, Reserved1, pExpirationTime, Reserved2, Reserved3, Reserved4, pAuthzClientContext);
// ClientBinding : void* optional
// ImpersonateOnReturn : BOOL
// Reserved1 : void* optional
// pExpirationTime : LONGLONG* optional
// Reserved2 : LUID
// Reserved3 : DWORD
// Reserved4 : void* optional
// pAuthzClientContext : void** 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 Rpcrt4 extends StdCallLibrary {
    Rpcrt4 INSTANCE = Native.load("rpcrt4", Rpcrt4.class);
    int RpcGetAuthorizationContextForClient(
        Pointer ClientBinding,   // void* optional
        boolean ImpersonateOnReturn,   // BOOL
        Pointer Reserved1,   // void* optional
        LongByReference pExpirationTime,   // LONGLONG* optional
        LUID /* extends Structure (by value) */ Reserved2,   // LUID
        int Reserved3,   // DWORD
        Pointer Reserved4,   // void* optional
        Pointer pAuthzClientContext   // void** out
    );
}
@[Link("rpcrt4")]
lib LibRPCRT4
  fun RpcGetAuthorizationContextForClient = RpcGetAuthorizationContextForClient(
    ClientBinding : Void*,   # void* optional
    ImpersonateOnReturn : Int32,   # BOOL
    Reserved1 : Void*,   # void* optional
    pExpirationTime : Int64*,   # LONGLONG* optional
    Reserved2 : LUID,   # LUID
    Reserved3 : UInt32,   # DWORD
    Reserved4 : Void*,   # void* optional
    pAuthzClientContext : Void**   # void** out
  ) : Int32
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 RpcGetAuthorizationContextForClientNative = Int32 Function(Pointer<Void>, Int32, Pointer<Void>, Pointer<Int64>, LUID, Uint32, Pointer<Void>, Pointer<Void>);
typedef RpcGetAuthorizationContextForClientDart = int Function(Pointer<Void>, int, Pointer<Void>, Pointer<Int64>, int, int, Pointer<Void>, Pointer<Void>);
final RpcGetAuthorizationContextForClient = DynamicLibrary.open('RPCRT4.dll')
    .lookupFunction<RpcGetAuthorizationContextForClientNative, RpcGetAuthorizationContextForClientDart>('RpcGetAuthorizationContextForClient');
// ClientBinding : void* optional -> Pointer<Void>
// ImpersonateOnReturn : BOOL -> Int32
// Reserved1 : void* optional -> Pointer<Void>
// pExpirationTime : LONGLONG* optional -> Pointer<Int64>
// Reserved2 : LUID -> LUID
// Reserved3 : DWORD -> Uint32
// Reserved4 : void* optional -> Pointer<Void>
// pAuthzClientContext : void** out -> Pointer<Void>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。
{$mode objfpc}{$H+}
function RpcGetAuthorizationContextForClient(
  ClientBinding: Pointer;   // void* optional
  ImpersonateOnReturn: BOOL;   // BOOL
  Reserved1: Pointer;   // void* optional
  pExpirationTime: Pointer;   // LONGLONG* optional
  Reserved2: LUID;   // LUID
  Reserved3: DWORD;   // DWORD
  Reserved4: Pointer;   // void* optional
  pAuthzClientContext: Pointer   // void** out
): Integer; stdcall;
  external 'RPCRT4.dll' name 'RpcGetAuthorizationContextForClient';
import Foreign
import Foreign.C.Types
import Foreign.C.String

foreign import stdcall safe "RpcGetAuthorizationContextForClient"
  c_RpcGetAuthorizationContextForClient :: Ptr () -> CInt -> Ptr () -> Ptr Int64 -> LUID -> Word32 -> Ptr () -> Ptr () -> IO Int32
-- ClientBinding : void* optional -> Ptr ()
-- ImpersonateOnReturn : BOOL -> CInt
-- Reserved1 : void* optional -> Ptr ()
-- pExpirationTime : LONGLONG* optional -> Ptr Int64
-- Reserved2 : LUID -> LUID
-- Reserved3 : DWORD -> Word32
-- Reserved4 : void* optional -> Ptr ()
-- pAuthzClientContext : void** 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。
-- ※値渡し構造体は GHC FFI で直接渡せません。Ptr で渡すラッパ(C側)経由にしてください。
open Ctypes
open Foreign

let rpcgetauthorizationcontextforclient =
  foreign "RpcGetAuthorizationContextForClient"
    ((ptr void) @-> int32_t @-> (ptr void) @-> (ptr int64_t) @-> LUID @-> uint32_t @-> (ptr void) @-> (ptr void) @-> returning int32_t)
(* ClientBinding : void* optional -> (ptr void) *)
(* ImpersonateOnReturn : BOOL -> int32_t *)
(* Reserved1 : void* optional -> (ptr void) *)
(* pExpirationTime : LONGLONG* optional -> (ptr int64_t) *)
(* Reserved2 : LUID -> LUID *)
(* Reserved3 : DWORD -> uint32_t *)
(* Reserved4 : void* optional -> (ptr void) *)
(* pAuthzClientContext : void** 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 rpcrt4 (t "RPCRT4.dll"))
(cffi:use-foreign-library rpcrt4)

(cffi:defcfun ("RpcGetAuthorizationContextForClient" rpc-get-authorization-context-for-client :convention :stdcall) :int32
  (client-binding :pointer)   ; void* optional
  (impersonate-on-return :int32)   ; BOOL
  (reserved1 :pointer)   ; void* optional
  (p-expiration-time :pointer)   ; LONGLONG* optional
  (reserved2 (:struct luid))   ; LUID
  (reserved3 :uint32)   ; DWORD
  (reserved4 :pointer)   ; void* optional
  (p-authz-client-context :pointer))   ; void** out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。
use Win32::API;
my $RpcGetAuthorizationContextForClient = Win32::API::More->new('RPCRT4',
    'int RpcGetAuthorizationContextForClient(LPVOID ClientBinding, BOOL ImpersonateOnReturn, LPVOID Reserved1, LPVOID pExpirationTime, LPVOID Reserved2, DWORD Reserved3, LPVOID Reserved4, LPVOID pAuthzClientContext)');
# my $ret = $RpcGetAuthorizationContextForClient->Call($ClientBinding, $ImpersonateOnReturn, $Reserved1, $pExpirationTime, $Reserved2, $Reserved3, $Reserved4, $pAuthzClientContext);
# ClientBinding : void* optional -> LPVOID
# ImpersonateOnReturn : BOOL -> BOOL
# Reserved1 : void* optional -> LPVOID
# pExpirationTime : LONGLONG* optional -> LPVOID
# Reserved2 : LUID -> LPVOID
# Reserved3 : DWORD -> DWORD
# Reserved4 : void* optional -> LPVOID
# pAuthzClientContext : void** out -> LPVOID
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。

関連項目

使用する型