DecryptMessage

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

HRESULT DecryptMessage(
    SecHandle* phContext,
    SecBufferDesc* pMessage,
    DWORD MessageSeqNo,
    DWORD* pfQOP   // optional
);

<DllImport("SECUR32.dll", ExactSpelling:=True)>
Public Shared Function DecryptMessage(
    phContext As IntPtr,   ' SecHandle*
    pMessage As IntPtr,   ' SecBufferDesc*
    MessageSeqNo As UInteger,   ' DWORD
    pfQOP As IntPtr   ' DWORD* optional, out
) As Integer
End Function

' phContext : SecHandle*
' pMessage : SecBufferDesc*
' MessageSeqNo : DWORD
' pfQOP : DWORD* optional, out
Declare PtrSafe Function DecryptMessage Lib "secur32" ( _
    ByVal phContext As LongPtr, _
    ByVal pMessage As LongPtr, _
    ByVal MessageSeqNo As Long, _
    ByVal pfQOP 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

DecryptMessage = ctypes.windll.secur32.DecryptMessage
DecryptMessage.restype = ctypes.c_int
DecryptMessage.argtypes = [
    ctypes.c_void_p,  # phContext : SecHandle*
    ctypes.c_void_p,  # pMessage : SecBufferDesc*
    wintypes.DWORD,  # MessageSeqNo : DWORD
    ctypes.POINTER(wintypes.DWORD),  # pfQOP : DWORD* optional, out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('SECUR32.dll')
DecryptMessage = Fiddle::Function.new(
  lib['DecryptMessage'],
  [
    Fiddle::TYPE_VOIDP,  # phContext : SecHandle*
    Fiddle::TYPE_VOIDP,  # pMessage : SecBufferDesc*
    -Fiddle::TYPE_INT,  # MessageSeqNo : DWORD
    Fiddle::TYPE_VOIDP,  # pfQOP : DWORD* optional, out
  ],
  Fiddle::TYPE_INT)

#[link(name = "secur32")]
extern "system" {
    fn DecryptMessage(
        phContext: *mut SecHandle,  // SecHandle*
        pMessage: *mut SecBufferDesc,  // SecBufferDesc*
        MessageSeqNo: u32,  // DWORD
        pfQOP: *mut u32  // DWORD* optional, out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("SECUR32.dll")]
public static extern int DecryptMessage(IntPtr phContext, IntPtr pMessage, uint MessageSeqNo, IntPtr pfQOP);
"@
$api = Add-Type -MemberDefinition $sig -Name 'SECUR32_DecryptMessage' -Namespace Win32 -PassThru
# $api::DecryptMessage(phContext, pMessage, MessageSeqNo, pfQOP)

#uselib "SECUR32.dll"
#func global DecryptMessage "DecryptMessage" sptr, sptr, sptr, sptr
; DecryptMessage varptr(phContext), varptr(pMessage), MessageSeqNo, varptr(pfQOP)   ; 戻り値は stat
; phContext : SecHandle* -> "sptr"
; pMessage : SecBufferDesc* -> "sptr"
; MessageSeqNo : DWORD -> "sptr"
; pfQOP : DWORD* optional, 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。

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

var (
	secur32 = windows.NewLazySystemDLL("SECUR32.dll")
	procDecryptMessage = secur32.NewProc("DecryptMessage")
)

// phContext (SecHandle*), pMessage (SecBufferDesc*), MessageSeqNo (DWORD), pfQOP (DWORD* optional, out)
r1, _, err := procDecryptMessage.Call(
	uintptr(phContext),
	uintptr(pMessage),
	uintptr(MessageSeqNo),
	uintptr(pfQOP),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function DecryptMessage(
  phContext: Pointer;   // SecHandle*
  pMessage: Pointer;   // SecBufferDesc*
  MessageSeqNo: DWORD;   // DWORD
  pfQOP: Pointer   // DWORD* optional, out
): Integer; stdcall;
  external 'SECUR32.dll' name 'DecryptMessage';

result := DllCall("SECUR32\DecryptMessage"
    , "Ptr", phContext   ; SecHandle*
    , "Ptr", pMessage   ; SecBufferDesc*
    , "UInt", MessageSeqNo   ; DWORD
    , "Ptr", pfQOP   ; DWORD* optional, out
    , "Int")   ; return: HRESULT

●DecryptMessage(phContext, pMessage, MessageSeqNo, pfQOP) = DLL("SECUR32.dll", "int DecryptMessage(void*, void*, dword, void*)")
# 呼び出し: DecryptMessage(phContext, pMessage, MessageSeqNo, pfQOP)
# phContext : SecHandle* -> "void*"
# pMessage : SecBufferDesc* -> "void*"
# MessageSeqNo : DWORD -> "dword"
# pfQOP : DWORD* optional, 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 DecryptMessage(
    phContext: [*c]SecHandle, // SecHandle*
    pMessage: [*c]SecBufferDesc, // SecBufferDesc*
    MessageSeqNo: u32, // DWORD
    pfQOP: [*c]u32 // DWORD* optional, out
) callconv(std.os.windows.WINAPI) i32;

proc DecryptMessage(
    phContext: ptr SecHandle,  # SecHandle*
    pMessage: ptr SecBufferDesc,  # SecBufferDesc*
    MessageSeqNo: uint32,  # DWORD
    pfQOP: ptr uint32  # DWORD* optional, out
): int32 {.importc: "DecryptMessage", stdcall, dynlib: "SECUR32.dll".}

pragma(lib, "secur32");
extern(Windows)
int DecryptMessage(
    SecHandle* phContext,   // SecHandle*
    SecBufferDesc* pMessage,   // SecBufferDesc*
    uint MessageSeqNo,   // DWORD
    uint* pfQOP   // DWORD* optional, out
);

ccall((:DecryptMessage, "SECUR32.dll"), stdcall, Int32,
      (Ptr{SecHandle}, Ptr{SecBufferDesc}, UInt32, Ptr{UInt32}),
      phContext, pMessage, MessageSeqNo, pfQOP)
# phContext : SecHandle* -> Ptr{SecHandle}
# pMessage : SecBufferDesc* -> Ptr{SecBufferDesc}
# MessageSeqNo : DWORD -> UInt32
# pfQOP : DWORD* optional, 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 DecryptMessage(
    void* phContext,
    void* pMessage,
    uint32_t MessageSeqNo,
    uint32_t* pfQOP);
]]
local secur32 = ffi.load("secur32")
-- secur32.DecryptMessage(phContext, pMessage, MessageSeqNo, pfQOP)
-- phContext : SecHandle*
-- pMessage : SecBufferDesc*
-- MessageSeqNo : DWORD
-- pfQOP : DWORD* optional, 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 DecryptMessage = lib.func('__stdcall', 'DecryptMessage', 'int32_t', ['void *', 'void *', 'uint32_t', 'uint32_t *']);
// DecryptMessage(phContext, pMessage, MessageSeqNo, pfQOP)
// phContext : SecHandle* -> 'void *'
// pMessage : SecBufferDesc* -> 'void *'
// MessageSeqNo : DWORD -> 'uint32_t'
// pfQOP : DWORD* optional, 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", {
  DecryptMessage: { parameters: ["pointer", "pointer", "u32", "pointer"], result: "i32" },
});
// lib.symbols.DecryptMessage(phContext, pMessage, MessageSeqNo, pfQOP)
// phContext : SecHandle* -> "pointer"
// pMessage : SecBufferDesc* -> "pointer"
// MessageSeqNo : DWORD -> "u32"
// pfQOP : DWORD* optional, 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 DecryptMessage(
    void* phContext,
    void* pMessage,
    uint32_t MessageSeqNo,
    uint32_t* pfQOP);
C, "SECUR32.dll");
// $ffi->DecryptMessage(phContext, pMessage, MessageSeqNo, pfQOP);
// phContext : SecHandle*
// pMessage : SecBufferDesc*
// MessageSeqNo : DWORD
// pfQOP : DWORD* optional, 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 DecryptMessage(
        Pointer phContext,   // SecHandle*
        Pointer pMessage,   // SecBufferDesc*
        int MessageSeqNo,   // DWORD
        IntByReference pfQOP   // DWORD* optional, out
    );
}

@[Link("secur32")]
lib LibSECUR32
  fun DecryptMessage = DecryptMessage(
    phContext : SecHandle*,   # SecHandle*
    pMessage : SecBufferDesc*,   # SecBufferDesc*
    MessageSeqNo : UInt32,   # DWORD
    pfQOP : UInt32*   # DWORD* optional, 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 DecryptMessageNative = Int32 Function(Pointer<Void>, Pointer<Void>, Uint32, Pointer<Uint32>);
typedef DecryptMessageDart = int Function(Pointer<Void>, Pointer<Void>, int, Pointer<Uint32>);
final DecryptMessage = DynamicLibrary.open('SECUR32.dll')
    .lookupFunction<DecryptMessageNative, DecryptMessageDart>('DecryptMessage');
// phContext : SecHandle* -> Pointer<Void>
// pMessage : SecBufferDesc* -> Pointer<Void>
// MessageSeqNo : DWORD -> Uint32
// pfQOP : DWORD* optional, out -> Pointer<Uint32>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function DecryptMessage(
  phContext: Pointer;   // SecHandle*
  pMessage: Pointer;   // SecBufferDesc*
  MessageSeqNo: DWORD;   // DWORD
  pfQOP: Pointer   // DWORD* optional, out
): Integer; stdcall;
  external 'SECUR32.dll' name 'DecryptMessage';

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

foreign import stdcall safe "DecryptMessage"
  c_DecryptMessage :: Ptr () -> Ptr () -> Word32 -> Ptr Word32 -> IO Int32
-- phContext : SecHandle* -> Ptr ()
-- pMessage : SecBufferDesc* -> Ptr ()
-- MessageSeqNo : DWORD -> Word32
-- pfQOP : DWORD* optional, 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 decryptmessage =
  foreign "DecryptMessage"
    ((ptr void) @-> (ptr void) @-> uint32_t @-> (ptr uint32_t) @-> returning int32_t)
(* phContext : SecHandle* -> (ptr void) *)
(* pMessage : SecBufferDesc* -> (ptr void) *)
(* MessageSeqNo : DWORD -> uint32_t *)
(* pfQOP : DWORD* optional, 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 ("DecryptMessage" decrypt-message :convention :stdcall) :int32
  (ph-context :pointer)   ; SecHandle*
  (p-message :pointer)   ; SecBufferDesc*
  (message-seq-no :uint32)   ; DWORD
  (pf-qop :pointer))   ; DWORD* optional, out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $DecryptMessage = Win32::API::More->new('SECUR32',
    'int DecryptMessage(LPVOID phContext, LPVOID pMessage, DWORD MessageSeqNo, LPVOID pfQOP)');
# my $ret = $DecryptMessage->Call($phContext, $pMessage, $MessageSeqNo, $pfQOP);
# phContext : SecHandle* -> LPVOID
# pMessage : SecBufferDesc* -> LPVOID
# MessageSeqNo : DWORD -> DWORD
# pfQOP : DWORD* optional, out -> LPVOID
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。