CryptGetMessageSignerCount

// CRYPT32.dll
#include <windows.h>

INT CryptGetMessageSignerCount(
    DWORD dwMsgEncodingType,
    const BYTE* pbSignedBlob,
    DWORD cbSignedBlob
);

<DllImport("CRYPT32.dll", SetLastError:=True, ExactSpelling:=True)>
Public Shared Function CryptGetMessageSignerCount(
    dwMsgEncodingType As UInteger,   ' DWORD
    pbSignedBlob As IntPtr,   ' BYTE*
    cbSignedBlob As UInteger   ' DWORD
) As Integer
End Function

' dwMsgEncodingType : DWORD
' pbSignedBlob : BYTE*
' cbSignedBlob : DWORD
Declare PtrSafe Function CryptGetMessageSignerCount Lib "crypt32" ( _
    ByVal dwMsgEncodingType As Long, _
    ByVal pbSignedBlob As LongPtr, _
    ByVal cbSignedBlob 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

CryptGetMessageSignerCount = ctypes.windll.crypt32.CryptGetMessageSignerCount
CryptGetMessageSignerCount.restype = ctypes.c_int
CryptGetMessageSignerCount.argtypes = [
    wintypes.DWORD,  # dwMsgEncodingType : DWORD
    ctypes.POINTER(ctypes.c_ubyte),  # pbSignedBlob : BYTE*
    wintypes.DWORD,  # cbSignedBlob : DWORD
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('CRYPT32.dll')
CryptGetMessageSignerCount = Fiddle::Function.new(
  lib['CryptGetMessageSignerCount'],
  [
    -Fiddle::TYPE_INT,  # dwMsgEncodingType : DWORD
    Fiddle::TYPE_VOIDP,  # pbSignedBlob : BYTE*
    -Fiddle::TYPE_INT,  # cbSignedBlob : DWORD
  ],
  Fiddle::TYPE_INT)

#[link(name = "crypt32")]
extern "system" {
    fn CryptGetMessageSignerCount(
        dwMsgEncodingType: u32,  // DWORD
        pbSignedBlob: *const u8,  // BYTE*
        cbSignedBlob: u32  // DWORD
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("CRYPT32.dll", SetLastError = true)]
public static extern int CryptGetMessageSignerCount(uint dwMsgEncodingType, IntPtr pbSignedBlob, uint cbSignedBlob);
"@
$api = Add-Type -MemberDefinition $sig -Name 'CRYPT32_CryptGetMessageSignerCount' -Namespace Win32 -PassThru
# $api::CryptGetMessageSignerCount(dwMsgEncodingType, pbSignedBlob, cbSignedBlob)

#uselib "CRYPT32.dll"
#func global CryptGetMessageSignerCount "CryptGetMessageSignerCount" sptr, sptr, sptr
; CryptGetMessageSignerCount dwMsgEncodingType, varptr(pbSignedBlob), cbSignedBlob   ; 戻り値は stat
; dwMsgEncodingType : DWORD -> "sptr"
; pbSignedBlob : BYTE* -> "sptr"
; cbSignedBlob : DWORD -> "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 (
	crypt32 = windows.NewLazySystemDLL("CRYPT32.dll")
	procCryptGetMessageSignerCount = crypt32.NewProc("CryptGetMessageSignerCount")
)

// dwMsgEncodingType (DWORD), pbSignedBlob (BYTE*), cbSignedBlob (DWORD)
r1, _, err := procCryptGetMessageSignerCount.Call(
	uintptr(dwMsgEncodingType),
	uintptr(pbSignedBlob),
	uintptr(cbSignedBlob),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // INT

function CryptGetMessageSignerCount(
  dwMsgEncodingType: DWORD;   // DWORD
  pbSignedBlob: Pointer;   // BYTE*
  cbSignedBlob: DWORD   // DWORD
): Integer; stdcall;
  external 'CRYPT32.dll' name 'CryptGetMessageSignerCount';

result := DllCall("CRYPT32\CryptGetMessageSignerCount"
    , "UInt", dwMsgEncodingType   ; DWORD
    , "Ptr", pbSignedBlob   ; BYTE*
    , "UInt", cbSignedBlob   ; DWORD
    , "Int")   ; return: INT

●CryptGetMessageSignerCount(dwMsgEncodingType, pbSignedBlob, cbSignedBlob) = DLL("CRYPT32.dll", "int CryptGetMessageSignerCount(dword, void*, dword)")
# 呼び出し: CryptGetMessageSignerCount(dwMsgEncodingType, pbSignedBlob, cbSignedBlob)
# dwMsgEncodingType : DWORD -> "dword"
# pbSignedBlob : BYTE* -> "void*"
# cbSignedBlob : DWORD -> "dword"
# 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 "crypt32" fn CryptGetMessageSignerCount(
    dwMsgEncodingType: u32, // DWORD
    pbSignedBlob: [*c]u8, // BYTE*
    cbSignedBlob: u32 // DWORD
) callconv(std.os.windows.WINAPI) i32;

proc CryptGetMessageSignerCount(
    dwMsgEncodingType: uint32,  # DWORD
    pbSignedBlob: ptr uint8,  # BYTE*
    cbSignedBlob: uint32  # DWORD
): int32 {.importc: "CryptGetMessageSignerCount", stdcall, dynlib: "CRYPT32.dll".}

pragma(lib, "crypt32");
extern(Windows)
int CryptGetMessageSignerCount(
    uint dwMsgEncodingType,   // DWORD
    ubyte* pbSignedBlob,   // BYTE*
    uint cbSignedBlob   // DWORD
);

ccall((:CryptGetMessageSignerCount, "CRYPT32.dll"), stdcall, Int32,
      (UInt32, Ptr{UInt8}, UInt32),
      dwMsgEncodingType, pbSignedBlob, cbSignedBlob)
# dwMsgEncodingType : DWORD -> UInt32
# pbSignedBlob : BYTE* -> Ptr{UInt8}
# cbSignedBlob : DWORD -> UInt32
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
int32_t CryptGetMessageSignerCount(
    uint32_t dwMsgEncodingType,
    uint8_t* pbSignedBlob,
    uint32_t cbSignedBlob);
]]
local crypt32 = ffi.load("crypt32")
-- crypt32.CryptGetMessageSignerCount(dwMsgEncodingType, pbSignedBlob, cbSignedBlob)
-- dwMsgEncodingType : DWORD
-- pbSignedBlob : BYTE*
-- cbSignedBlob : DWORD
-- 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('CRYPT32.dll');
const CryptGetMessageSignerCount = lib.func('__stdcall', 'CryptGetMessageSignerCount', 'int32_t', ['uint32_t', 'uint8_t *', 'uint32_t']);
// CryptGetMessageSignerCount(dwMsgEncodingType, pbSignedBlob, cbSignedBlob)
// dwMsgEncodingType : DWORD -> 'uint32_t'
// pbSignedBlob : BYTE* -> 'uint8_t *'
// cbSignedBlob : DWORD -> '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("CRYPT32.dll", {
  CryptGetMessageSignerCount: { parameters: ["u32", "pointer", "u32"], result: "i32" },
});
// lib.symbols.CryptGetMessageSignerCount(dwMsgEncodingType, pbSignedBlob, cbSignedBlob)
// dwMsgEncodingType : DWORD -> "u32"
// pbSignedBlob : BYTE* -> "pointer"
// cbSignedBlob : DWORD -> "u32"
// 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 CryptGetMessageSignerCount(
    uint32_t dwMsgEncodingType,
    uint8_t* pbSignedBlob,
    uint32_t cbSignedBlob);
C, "CRYPT32.dll");
// $ffi->CryptGetMessageSignerCount(dwMsgEncodingType, pbSignedBlob, cbSignedBlob);
// dwMsgEncodingType : DWORD
// pbSignedBlob : BYTE*
// cbSignedBlob : DWORD
// 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 Crypt32 extends StdCallLibrary {
    Crypt32 INSTANCE = Native.load("crypt32", Crypt32.class);
    int CryptGetMessageSignerCount(
        int dwMsgEncodingType,   // DWORD
        byte[] pbSignedBlob,   // BYTE*
        int cbSignedBlob   // DWORD
    );
}

@[Link("crypt32")]
lib LibCRYPT32
  fun CryptGetMessageSignerCount = CryptGetMessageSignerCount(
    dwMsgEncodingType : UInt32,   # DWORD
    pbSignedBlob : UInt8*,   # BYTE*
    cbSignedBlob : UInt32   # DWORD
  ) : 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 CryptGetMessageSignerCountNative = Int32 Function(Uint32, Pointer<Uint8>, Uint32);
typedef CryptGetMessageSignerCountDart = int Function(int, Pointer<Uint8>, int);
final CryptGetMessageSignerCount = DynamicLibrary.open('CRYPT32.dll')
    .lookupFunction<CryptGetMessageSignerCountNative, CryptGetMessageSignerCountDart>('CryptGetMessageSignerCount');
// dwMsgEncodingType : DWORD -> Uint32
// pbSignedBlob : BYTE* -> Pointer<Uint8>
// cbSignedBlob : DWORD -> Uint32
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function CryptGetMessageSignerCount(
  dwMsgEncodingType: DWORD;   // DWORD
  pbSignedBlob: Pointer;   // BYTE*
  cbSignedBlob: DWORD   // DWORD
): Integer; stdcall;
  external 'CRYPT32.dll' name 'CryptGetMessageSignerCount';

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

foreign import stdcall safe "CryptGetMessageSignerCount"
  c_CryptGetMessageSignerCount :: Word32 -> Ptr Word8 -> Word32 -> IO Int32
-- dwMsgEncodingType : DWORD -> Word32
-- pbSignedBlob : BYTE* -> Ptr Word8
-- cbSignedBlob : DWORD -> 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 cryptgetmessagesignercount =
  foreign "CryptGetMessageSignerCount"
    (uint32_t @-> (ptr uint8_t) @-> uint32_t @-> returning int32_t)
(* dwMsgEncodingType : DWORD -> uint32_t *)
(* pbSignedBlob : BYTE* -> (ptr uint8_t) *)
(* cbSignedBlob : DWORD -> 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 crypt32 (t "CRYPT32.dll"))
(cffi:use-foreign-library crypt32)

(cffi:defcfun ("CryptGetMessageSignerCount" crypt-get-message-signer-count :convention :stdcall) :int32
  (dw-msg-encoding-type :uint32)   ; DWORD
  (pb-signed-blob :pointer)   ; BYTE*
  (cb-signed-blob :uint32))   ; DWORD
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $CryptGetMessageSignerCount = Win32::API::More->new('CRYPT32',
    'int CryptGetMessageSignerCount(DWORD dwMsgEncodingType, LPVOID pbSignedBlob, DWORD cbSignedBlob)');
# my $ret = $CryptGetMessageSignerCount->Call($dwMsgEncodingType, $pbSignedBlob, $cbSignedBlob);
# dwMsgEncodingType : DWORD -> DWORD
# pbSignedBlob : BYTE* -> LPVOID
# cbSignedBlob : DWORD -> DWORD
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。