ホーム › Security.Authentication.Identity › SspiPrepareForCredWrite

SspiPrepareForCredWrite

関数

資格情報マネージャーへの書き込み用に認証情報を準備する。

DLLSECUR32.dll呼出規約winapi対応OSWindows 7 以降

シグネチャ

// SECUR32.dll
#include <windows.h>

HRESULT SspiPrepareForCredWrite(
    void* AuthIdentity,
    LPCWSTR pszTargetName,   // optional
    DWORD* pCredmanCredentialType,
    LPCWSTR* ppszCredmanTargetName,
    LPCWSTR* ppszCredmanUserName,
    BYTE** ppCredentialBlob,
    DWORD* pCredentialBlobSize
);

パラメーター

名前	型	方向	説明
AuthIdentity	void*	in	書き込み準備の元となる認証ID構造体へのポインタ。
pszTargetName	LPCWSTR	inoptional	資格情報を書き込む対象のターゲット名を示すワイド文字列。NULL可。
pCredmanCredentialType	DWORD*	out	出力。資格情報マネージャの資格情報種別を受け取るDWORDへのポインタ。
ppszCredmanTargetName	LPCWSTR*	out	出力。資格情報マネージャ用のターゲット名文字列を受け取るポインタ。SspiLocalFreeで解放する。
ppszCredmanUserName	LPCWSTR*	out	出力。資格情報マネージャ用のユーザー名文字列を受け取るポインタ。SspiLocalFreeで解放する。
ppCredentialBlob	BYTE**	out	出力。資格情報の格納用バイナリBLOBを受け取るポインタ。SspiLocalFreeで解放する。
pCredentialBlobSize	DWORD*	out	出力。ppCredentialBlobのサイズ(バイト数)を受け取るDWORDへのポインタ。

戻り値の型: HRESULT

各言語での呼び出し定義

// SECUR32.dll
#include <windows.h>

HRESULT SspiPrepareForCredWrite(
    void* AuthIdentity,
    LPCWSTR pszTargetName,   // optional
    DWORD* pCredmanCredentialType,
    LPCWSTR* ppszCredmanTargetName,
    LPCWSTR* ppszCredmanUserName,
    BYTE** ppCredentialBlob,
    DWORD* pCredentialBlobSize
);

[DllImport("SECUR32.dll", ExactSpelling = true)]
static extern int SspiPrepareForCredWrite(
    IntPtr AuthIdentity,   // void*
    [MarshalAs(UnmanagedType.LPWStr)] string pszTargetName,   // LPCWSTR optional
    out uint pCredmanCredentialType,   // DWORD* out
    IntPtr ppszCredmanTargetName,   // LPCWSTR* out
    IntPtr ppszCredmanUserName,   // LPCWSTR* out
    IntPtr ppCredentialBlob,   // BYTE** out
    out uint pCredentialBlobSize   // DWORD* out
);

<DllImport("SECUR32.dll", ExactSpelling:=True)>
Public Shared Function SspiPrepareForCredWrite(
    AuthIdentity As IntPtr,   ' void*
    <MarshalAs(UnmanagedType.LPWStr)> pszTargetName As String,   ' LPCWSTR optional
    <Out> ByRef pCredmanCredentialType As UInteger,   ' DWORD* out
    ppszCredmanTargetName As IntPtr,   ' LPCWSTR* out
    ppszCredmanUserName As IntPtr,   ' LPCWSTR* out
    ppCredentialBlob As IntPtr,   ' BYTE** out
    <Out> ByRef pCredentialBlobSize As UInteger   ' DWORD* out
) As Integer
End Function

' AuthIdentity : void*
' pszTargetName : LPCWSTR optional
' pCredmanCredentialType : DWORD* out
' ppszCredmanTargetName : LPCWSTR* out
' ppszCredmanUserName : LPCWSTR* out
' ppCredentialBlob : BYTE** out
' pCredentialBlobSize : DWORD* out
Declare PtrSafe Function SspiPrepareForCredWrite Lib "secur32" ( _
    ByVal AuthIdentity As LongPtr, _
    ByVal pszTargetName As LongPtr, _
    ByRef pCredmanCredentialType As Long, _
    ByVal ppszCredmanTargetName As LongPtr, _
    ByVal ppszCredmanUserName As LongPtr, _
    ByVal ppCredentialBlob As LongPtr, _
    ByRef pCredentialBlobSize As Long) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

SspiPrepareForCredWrite = ctypes.windll.secur32.SspiPrepareForCredWrite
SspiPrepareForCredWrite.restype = ctypes.c_int
SspiPrepareForCredWrite.argtypes = [
    ctypes.POINTER(None),  # AuthIdentity : void*
    wintypes.LPCWSTR,  # pszTargetName : LPCWSTR optional
    ctypes.POINTER(wintypes.DWORD),  # pCredmanCredentialType : DWORD* out
    ctypes.c_void_p,  # ppszCredmanTargetName : LPCWSTR* out
    ctypes.c_void_p,  # ppszCredmanUserName : LPCWSTR* out
    ctypes.c_void_p,  # ppCredentialBlob : BYTE** out
    ctypes.POINTER(wintypes.DWORD),  # pCredentialBlobSize : DWORD* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('SECUR32.dll')
SspiPrepareForCredWrite = Fiddle::Function.new(
  lib['SspiPrepareForCredWrite'],
  [
    Fiddle::TYPE_VOIDP,  # AuthIdentity : void*
    Fiddle::TYPE_VOIDP,  # pszTargetName : LPCWSTR optional
    Fiddle::TYPE_VOIDP,  # pCredmanCredentialType : DWORD* out
    Fiddle::TYPE_VOIDP,  # ppszCredmanTargetName : LPCWSTR* out
    Fiddle::TYPE_VOIDP,  # ppszCredmanUserName : LPCWSTR* out
    Fiddle::TYPE_VOIDP,  # ppCredentialBlob : BYTE** out
    Fiddle::TYPE_VOIDP,  # pCredentialBlobSize : DWORD* out
  ],
  Fiddle::TYPE_INT)

#[link(name = "secur32")]
extern "system" {
    fn SspiPrepareForCredWrite(
        AuthIdentity: *mut (),  // void*
        pszTargetName: *const u16,  // LPCWSTR optional
        pCredmanCredentialType: *mut u32,  // DWORD* out
        ppszCredmanTargetName: *const *const u16,  // LPCWSTR* out
        ppszCredmanUserName: *const *const u16,  // LPCWSTR* out
        ppCredentialBlob: *mut *mut u8,  // BYTE** out
        pCredentialBlobSize: *mut u32  // DWORD* out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("SECUR32.dll")]
public static extern int SspiPrepareForCredWrite(IntPtr AuthIdentity, [MarshalAs(UnmanagedType.LPWStr)] string pszTargetName, out uint pCredmanCredentialType, IntPtr ppszCredmanTargetName, IntPtr ppszCredmanUserName, IntPtr ppCredentialBlob, out uint pCredentialBlobSize);
"@
$api = Add-Type -MemberDefinition $sig -Name 'SECUR32_SspiPrepareForCredWrite' -Namespace Win32 -PassThru
# $api::SspiPrepareForCredWrite(AuthIdentity, pszTargetName, pCredmanCredentialType, ppszCredmanTargetName, ppszCredmanUserName, ppCredentialBlob, pCredentialBlobSize)

#uselib "SECUR32.dll"
#func global SspiPrepareForCredWrite "SspiPrepareForCredWrite" sptr, sptr, sptr, sptr, sptr, sptr, sptr
; SspiPrepareForCredWrite AuthIdentity, pszTargetName, varptr(pCredmanCredentialType), varptr(ppszCredmanTargetName), varptr(ppszCredmanUserName), varptr(ppCredentialBlob), varptr(pCredentialBlobSize)   ; 戻り値は stat
; AuthIdentity : void* -> "sptr"
; pszTargetName : LPCWSTR optional -> "sptr"
; pCredmanCredentialType : DWORD* out -> "sptr"
; ppszCredmanTargetName : LPCWSTR* out -> "sptr"
; ppszCredmanUserName : LPCWSTR* out -> "sptr"
; ppCredentialBlob : BYTE** out -> "sptr"
; pCredentialBlobSize : DWORD* 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 "SECUR32.dll"
#cfunc global SspiPrepareForCredWrite "SspiPrepareForCredWrite" sptr, wstr, var, var, var, var, var
; res = SspiPrepareForCredWrite(AuthIdentity, pszTargetName, pCredmanCredentialType, ppszCredmanTargetName, ppszCredmanUserName, ppCredentialBlob, pCredentialBlobSize)
; AuthIdentity : void* -> "sptr"
; pszTargetName : LPCWSTR optional -> "wstr"
; pCredmanCredentialType : DWORD* out -> "var"
; ppszCredmanTargetName : LPCWSTR* out -> "var"
; ppszCredmanUserName : LPCWSTR* out -> "var"
; ppCredentialBlob : BYTE** out -> "var"
; pCredentialBlobSize : DWORD* 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 "SECUR32.dll"
#cfunc global SspiPrepareForCredWrite "SspiPrepareForCredWrite" sptr, wstr, sptr, sptr, sptr, sptr, sptr
; res = SspiPrepareForCredWrite(AuthIdentity, pszTargetName, varptr(pCredmanCredentialType), varptr(ppszCredmanTargetName), varptr(ppszCredmanUserName), varptr(ppCredentialBlob), varptr(pCredentialBlobSize))
; AuthIdentity : void* -> "sptr"
; pszTargetName : LPCWSTR optional -> "wstr"
; pCredmanCredentialType : DWORD* out -> "sptr"
; ppszCredmanTargetName : LPCWSTR* out -> "sptr"
; ppszCredmanUserName : LPCWSTR* out -> "sptr"
; ppCredentialBlob : BYTE** out -> "sptr"
; pCredentialBlobSize : DWORD* 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:

; HRESULT SspiPrepareForCredWrite(void* AuthIdentity, LPCWSTR pszTargetName, DWORD* pCredmanCredentialType, LPCWSTR* ppszCredmanTargetName, LPCWSTR* ppszCredmanUserName, BYTE** ppCredentialBlob, DWORD* pCredentialBlobSize)
#uselib "SECUR32.dll"
#cfunc global SspiPrepareForCredWrite "SspiPrepareForCredWrite" intptr, wstr, var, var, var, var, var
; res = SspiPrepareForCredWrite(AuthIdentity, pszTargetName, pCredmanCredentialType, ppszCredmanTargetName, ppszCredmanUserName, ppCredentialBlob, pCredentialBlobSize)
; AuthIdentity : void* -> "intptr"
; pszTargetName : LPCWSTR optional -> "wstr"
; pCredmanCredentialType : DWORD* out -> "var"
; ppszCredmanTargetName : LPCWSTR* out -> "var"
; ppszCredmanUserName : LPCWSTR* out -> "var"
; ppCredentialBlob : BYTE** out -> "var"
; pCredentialBlobSize : DWORD* 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。; HRESULT SspiPrepareForCredWrite(void* AuthIdentity, LPCWSTR pszTargetName, DWORD* pCredmanCredentialType, LPCWSTR* ppszCredmanTargetName, LPCWSTR* ppszCredmanUserName, BYTE** ppCredentialBlob, DWORD* pCredentialBlobSize)
#uselib "SECUR32.dll"
#cfunc global SspiPrepareForCredWrite "SspiPrepareForCredWrite" intptr, wstr, intptr, intptr, intptr, intptr, intptr
; res = SspiPrepareForCredWrite(AuthIdentity, pszTargetName, varptr(pCredmanCredentialType), varptr(ppszCredmanTargetName), varptr(ppszCredmanUserName), varptr(ppCredentialBlob), varptr(pCredentialBlobSize))
; AuthIdentity : void* -> "intptr"
; pszTargetName : LPCWSTR optional -> "wstr"
; pCredmanCredentialType : DWORD* out -> "intptr"
; ppszCredmanTargetName : LPCWSTR* out -> "intptr"
; ppszCredmanUserName : LPCWSTR* out -> "intptr"
; ppCredentialBlob : BYTE** out -> "intptr"
; pCredentialBlobSize : DWORD* 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 (
	secur32 = windows.NewLazySystemDLL("SECUR32.dll")
	procSspiPrepareForCredWrite = secur32.NewProc("SspiPrepareForCredWrite")
)

// AuthIdentity (void*), pszTargetName (LPCWSTR optional), pCredmanCredentialType (DWORD* out), ppszCredmanTargetName (LPCWSTR* out), ppszCredmanUserName (LPCWSTR* out), ppCredentialBlob (BYTE** out), pCredentialBlobSize (DWORD* out)
r1, _, err := procSspiPrepareForCredWrite.Call(
	uintptr(AuthIdentity),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(pszTargetName))),
	uintptr(pCredmanCredentialType),
	uintptr(ppszCredmanTargetName),
	uintptr(ppszCredmanUserName),
	uintptr(ppCredentialBlob),
	uintptr(pCredentialBlobSize),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function SspiPrepareForCredWrite(
  AuthIdentity: Pointer;   // void*
  pszTargetName: PWideChar;   // LPCWSTR optional
  pCredmanCredentialType: Pointer;   // DWORD* out
  ppszCredmanTargetName: PPWideChar;   // LPCWSTR* out
  ppszCredmanUserName: PPWideChar;   // LPCWSTR* out
  ppCredentialBlob: Pointer;   // BYTE** out
  pCredentialBlobSize: Pointer   // DWORD* out
): Integer; stdcall;
  external 'SECUR32.dll' name 'SspiPrepareForCredWrite';

result := DllCall("SECUR32\SspiPrepareForCredWrite"
    , "Ptr", AuthIdentity   ; void*
    , "WStr", pszTargetName   ; LPCWSTR optional
    , "Ptr", pCredmanCredentialType   ; DWORD* out
    , "Ptr", ppszCredmanTargetName   ; LPCWSTR* out
    , "Ptr", ppszCredmanUserName   ; LPCWSTR* out
    , "Ptr", ppCredentialBlob   ; BYTE** out
    , "Ptr", pCredentialBlobSize   ; DWORD* out
    , "Int")   ; return: HRESULT

●SspiPrepareForCredWrite(AuthIdentity, pszTargetName, pCredmanCredentialType, ppszCredmanTargetName, ppszCredmanUserName, ppCredentialBlob, pCredentialBlobSize) = DLL("SECUR32.dll", "int SspiPrepareForCredWrite(void*, char*, void*, void*, void*, void*, void*)")
# 呼び出し: SspiPrepareForCredWrite(AuthIdentity, pszTargetName, pCredmanCredentialType, ppszCredmanTargetName, ppszCredmanUserName, ppCredentialBlob, pCredentialBlobSize)
# AuthIdentity : void* -> "void*"
# pszTargetName : LPCWSTR optional -> "char*"
# pCredmanCredentialType : DWORD* out -> "void*"
# ppszCredmanTargetName : LPCWSTR* out -> "void*"
# ppszCredmanUserName : LPCWSTR* out -> "void*"
# ppCredentialBlob : BYTE** out -> "void*"
# pCredentialBlobSize : DWORD* 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 "secur32" fn SspiPrepareForCredWrite(
    AuthIdentity: ?*anyopaque, // void*
    pszTargetName: [*c]const u16, // LPCWSTR optional
    pCredmanCredentialType: [*c]u32, // DWORD* out
    ppszCredmanTargetName: [*c][*c]u16, // LPCWSTR* out
    ppszCredmanUserName: [*c][*c]u16, // LPCWSTR* out
    ppCredentialBlob: [*c][*c]u8, // BYTE** out
    pCredentialBlobSize: [*c]u32 // DWORD* out
) callconv(std.os.windows.WINAPI) i32;

proc SspiPrepareForCredWrite(
    AuthIdentity: pointer,  # void*
    pszTargetName: WideCString,  # LPCWSTR optional
    pCredmanCredentialType: ptr uint32,  # DWORD* out
    ppszCredmanTargetName: ptr WideCString,  # LPCWSTR* out
    ppszCredmanUserName: ptr WideCString,  # LPCWSTR* out
    ppCredentialBlob: ptr uint8,  # BYTE** out
    pCredentialBlobSize: ptr uint32  # DWORD* out
): int32 {.importc: "SspiPrepareForCredWrite", stdcall, dynlib: "SECUR32.dll".}

pragma(lib, "secur32");
extern(Windows)
int SspiPrepareForCredWrite(
    void* AuthIdentity,   // void*
    const(wchar)* pszTargetName,   // LPCWSTR optional
    uint* pCredmanCredentialType,   // DWORD* out
    wchar** ppszCredmanTargetName,   // LPCWSTR* out
    wchar** ppszCredmanUserName,   // LPCWSTR* out
    ubyte** ppCredentialBlob,   // BYTE** out
    uint* pCredentialBlobSize   // DWORD* out
);

ccall((:SspiPrepareForCredWrite, "SECUR32.dll"), stdcall, Int32,
      (Ptr{Cvoid}, Cwstring, Ptr{UInt32}, Ptr{Ptr{UInt16}}, Ptr{Ptr{UInt16}}, Ptr{UInt8}, Ptr{UInt32}),
      AuthIdentity, pszTargetName, pCredmanCredentialType, ppszCredmanTargetName, ppszCredmanUserName, ppCredentialBlob, pCredentialBlobSize)
# AuthIdentity : void* -> Ptr{Cvoid}
# pszTargetName : LPCWSTR optional -> Cwstring
# pCredmanCredentialType : DWORD* out -> Ptr{UInt32}
# ppszCredmanTargetName : LPCWSTR* out -> Ptr{Ptr{UInt16}}
# ppszCredmanUserName : LPCWSTR* out -> Ptr{Ptr{UInt16}}
# ppCredentialBlob : BYTE** out -> Ptr{UInt8}
# pCredentialBlobSize : DWORD* out -> Ptr{UInt32}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
int32_t SspiPrepareForCredWrite(
    void* AuthIdentity,
    const uint16_t* pszTargetName,
    uint32_t* pCredmanCredentialType,
    uint16_t** ppszCredmanTargetName,
    uint16_t** ppszCredmanUserName,
    uint8_t** ppCredentialBlob,
    uint32_t* pCredentialBlobSize);
]]
local secur32 = ffi.load("secur32")
-- secur32.SspiPrepareForCredWrite(AuthIdentity, pszTargetName, pCredmanCredentialType, ppszCredmanTargetName, ppszCredmanUserName, ppCredentialBlob, pCredentialBlobSize)
-- AuthIdentity : void*
-- pszTargetName : LPCWSTR optional
-- pCredmanCredentialType : DWORD* out
-- ppszCredmanTargetName : LPCWSTR* out
-- ppszCredmanUserName : LPCWSTR* out
-- ppCredentialBlob : BYTE** out
-- pCredentialBlobSize : DWORD* 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('SECUR32.dll');
const SspiPrepareForCredWrite = lib.func('__stdcall', 'SspiPrepareForCredWrite', 'int32_t', ['void *', 'str16', 'uint32_t *', 'void *', 'void *', 'uint8_t *', 'uint32_t *']);
// SspiPrepareForCredWrite(AuthIdentity, pszTargetName, pCredmanCredentialType, ppszCredmanTargetName, ppszCredmanUserName, ppCredentialBlob, pCredentialBlobSize)
// AuthIdentity : void* -> 'void *'
// pszTargetName : LPCWSTR optional -> 'str16'
// pCredmanCredentialType : DWORD* out -> 'uint32_t *'
// ppszCredmanTargetName : LPCWSTR* out -> 'void *'
// ppszCredmanUserName : LPCWSTR* out -> 'void *'
// ppCredentialBlob : BYTE** out -> 'uint8_t *'
// pCredentialBlobSize : DWORD* out -> 'uint32_t *'
// 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("SECUR32.dll", {
  SspiPrepareForCredWrite: { parameters: ["pointer", "buffer", "pointer", "pointer", "pointer", "pointer", "pointer"], result: "i32" },
});
// lib.symbols.SspiPrepareForCredWrite(AuthIdentity, pszTargetName, pCredmanCredentialType, ppszCredmanTargetName, ppszCredmanUserName, ppCredentialBlob, pCredentialBlobSize)
// AuthIdentity : void* -> "pointer"
// pszTargetName : LPCWSTR optional -> "buffer"
// pCredmanCredentialType : DWORD* out -> "pointer"
// ppszCredmanTargetName : LPCWSTR* out -> "pointer"
// ppszCredmanUserName : LPCWSTR* out -> "pointer"
// ppCredentialBlob : BYTE** out -> "pointer"
// pCredentialBlobSize : DWORD* 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 SspiPrepareForCredWrite(
    void* AuthIdentity,
    const uint16_t* pszTargetName,
    uint32_t* pCredmanCredentialType,
    uint16_t** ppszCredmanTargetName,
    uint16_t** ppszCredmanUserName,
    uint8_t** ppCredentialBlob,
    uint32_t* pCredentialBlobSize);
C, "SECUR32.dll");
// $ffi->SspiPrepareForCredWrite(AuthIdentity, pszTargetName, pCredmanCredentialType, ppszCredmanTargetName, ppszCredmanUserName, ppCredentialBlob, pCredentialBlobSize);
// AuthIdentity : void*
// pszTargetName : LPCWSTR optional
// pCredmanCredentialType : DWORD* out
// ppszCredmanTargetName : LPCWSTR* out
// ppszCredmanUserName : LPCWSTR* out
// ppCredentialBlob : BYTE** out
// pCredentialBlobSize : DWORD* 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 Secur32 extends StdCallLibrary {
    Secur32 INSTANCE = Native.load("secur32", Secur32.class);
    int SspiPrepareForCredWrite(
        Pointer AuthIdentity,   // void*
        WString pszTargetName,   // LPCWSTR optional
        IntByReference pCredmanCredentialType,   // DWORD* out
        PointerByReference ppszCredmanTargetName,   // LPCWSTR* out
        PointerByReference ppszCredmanUserName,   // LPCWSTR* out
        Pointer ppCredentialBlob,   // BYTE** out
        IntByReference pCredentialBlobSize   // DWORD* out
    );
}

@[Link("secur32")]
lib LibSECUR32
  fun SspiPrepareForCredWrite = SspiPrepareForCredWrite(
    AuthIdentity : Void*,   # void*
    pszTargetName : UInt16*,   # LPCWSTR optional
    pCredmanCredentialType : UInt32*,   # DWORD* out
    ppszCredmanTargetName : UInt16**,   # LPCWSTR* out
    ppszCredmanUserName : UInt16**,   # LPCWSTR* out
    ppCredentialBlob : UInt8**,   # BYTE** out
    pCredentialBlobSize : UInt32*   # DWORD* 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 SspiPrepareForCredWriteNative = Int32 Function(Pointer<Void>, Pointer<Utf16>, Pointer<Uint32>, Pointer<Pointer<Utf16>>, Pointer<Pointer<Utf16>>, Pointer<Uint8>, Pointer<Uint32>);
typedef SspiPrepareForCredWriteDart = int Function(Pointer<Void>, Pointer<Utf16>, Pointer<Uint32>, Pointer<Pointer<Utf16>>, Pointer<Pointer<Utf16>>, Pointer<Uint8>, Pointer<Uint32>);
final SspiPrepareForCredWrite = DynamicLibrary.open('SECUR32.dll')
    .lookupFunction<SspiPrepareForCredWriteNative, SspiPrepareForCredWriteDart>('SspiPrepareForCredWrite');
// AuthIdentity : void* -> Pointer<Void>
// pszTargetName : LPCWSTR optional -> Pointer<Utf16>
// pCredmanCredentialType : DWORD* out -> Pointer<Uint32>
// ppszCredmanTargetName : LPCWSTR* out -> Pointer<Pointer<Utf16>>
// ppszCredmanUserName : LPCWSTR* out -> Pointer<Pointer<Utf16>>
// ppCredentialBlob : BYTE** out -> Pointer<Uint8>
// pCredentialBlobSize : DWORD* out -> Pointer<Uint32>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function SspiPrepareForCredWrite(
  AuthIdentity: Pointer;   // void*
  pszTargetName: PWideChar;   // LPCWSTR optional
  pCredmanCredentialType: Pointer;   // DWORD* out
  ppszCredmanTargetName: PPWideChar;   // LPCWSTR* out
  ppszCredmanUserName: PPWideChar;   // LPCWSTR* out
  ppCredentialBlob: Pointer;   // BYTE** out
  pCredentialBlobSize: Pointer   // DWORD* out
): Integer; stdcall;
  external 'SECUR32.dll' name 'SspiPrepareForCredWrite';

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

foreign import stdcall safe "SspiPrepareForCredWrite"
  c_SspiPrepareForCredWrite :: Ptr () -> CWString -> Ptr Word32 -> Ptr CWString -> Ptr CWString -> Ptr Word8 -> Ptr Word32 -> IO Int32
-- AuthIdentity : void* -> Ptr ()
-- pszTargetName : LPCWSTR optional -> CWString
-- pCredmanCredentialType : DWORD* out -> Ptr Word32
-- ppszCredmanTargetName : LPCWSTR* out -> Ptr CWString
-- ppszCredmanUserName : LPCWSTR* out -> Ptr CWString
-- ppCredentialBlob : BYTE** out -> Ptr Word8
-- pCredentialBlobSize : DWORD* out -> Ptr Word32
-- 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 sspiprepareforcredwrite =
  foreign "SspiPrepareForCredWrite"
    ((ptr void) @-> (ptr uint16_t) @-> (ptr uint32_t) @-> (ptr (ptr uint16_t)) @-> (ptr (ptr uint16_t)) @-> (ptr uint8_t) @-> (ptr uint32_t) @-> returning int32_t)
(* AuthIdentity : void* -> (ptr void) *)
(* pszTargetName : LPCWSTR optional -> (ptr uint16_t) *)
(* pCredmanCredentialType : DWORD* out -> (ptr uint32_t) *)
(* ppszCredmanTargetName : LPCWSTR* out -> (ptr (ptr uint16_t)) *)
(* ppszCredmanUserName : LPCWSTR* out -> (ptr (ptr uint16_t)) *)
(* ppCredentialBlob : BYTE** out -> (ptr uint8_t) *)
(* pCredentialBlobSize : DWORD* out -> (ptr uint32_t) *)
(* 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 secur32 (t "SECUR32.dll"))
(cffi:use-foreign-library secur32)

(cffi:defcfun ("SspiPrepareForCredWrite" sspi-prepare-for-cred-write :convention :stdcall) :int32
  (auth-identity :pointer)   ; void*
  (psz-target-name (:string :encoding :utf-16le))   ; LPCWSTR optional
  (p-credman-credential-type :pointer)   ; DWORD* out
  (ppsz-credman-target-name :pointer)   ; LPCWSTR* out
  (ppsz-credman-user-name :pointer)   ; LPCWSTR* out
  (pp-credential-blob :pointer)   ; BYTE** out
  (p-credential-blob-size :pointer))   ; DWORD* out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $SspiPrepareForCredWrite = Win32::API::More->new('SECUR32',
    'int SspiPrepareForCredWrite(LPVOID AuthIdentity, LPCWSTR pszTargetName, LPVOID pCredmanCredentialType, LPVOID ppszCredmanTargetName, LPVOID ppszCredmanUserName, LPVOID ppCredentialBlob, LPVOID pCredentialBlobSize)');
# my $ret = $SspiPrepareForCredWrite->Call($AuthIdentity, $pszTargetName, $pCredmanCredentialType, $ppszCredmanTargetName, $ppszCredmanUserName, $ppCredentialBlob, $pCredentialBlobSize);
# AuthIdentity : void* -> LPVOID
# pszTargetName : LPCWSTR optional -> LPCWSTR
# pCredmanCredentialType : DWORD* out -> LPVOID
# ppszCredmanTargetName : LPCWSTR* out -> LPVOID
# ppszCredmanUserName : LPCWSTR* out -> LPVOID
# ppCredentialBlob : BYTE** out -> LPVOID
# pCredentialBlobSize : DWORD* out -> LPVOID
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。