SslEnumEccCurves

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

HRESULT SslEnumEccCurves(
    NCRYPT_PROV_HANDLE hSslProvider,
    DWORD* pEccCurveCount,
    NCRYPT_SSL_ECC_CURVE** ppEccCurve,
    DWORD dwFlags
);

<DllImport("ncrypt.dll", ExactSpelling:=True)>
Public Shared Function SslEnumEccCurves(
    hSslProvider As UIntPtr,   ' NCRYPT_PROV_HANDLE
    <Out> ByRef pEccCurveCount As UInteger,   ' DWORD* out
    ppEccCurve As IntPtr,   ' NCRYPT_SSL_ECC_CURVE** out
    dwFlags As UInteger   ' DWORD
) As Integer
End Function

' hSslProvider : NCRYPT_PROV_HANDLE
' pEccCurveCount : DWORD* out
' ppEccCurve : NCRYPT_SSL_ECC_CURVE** out
' dwFlags : DWORD
Declare PtrSafe Function SslEnumEccCurves Lib "ncrypt" ( _
    ByVal hSslProvider As LongPtr, _
    ByRef pEccCurveCount As Long, _
    ByVal ppEccCurve As LongPtr, _
    ByVal dwFlags 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

SslEnumEccCurves = ctypes.windll.ncrypt.SslEnumEccCurves
SslEnumEccCurves.restype = ctypes.c_int
SslEnumEccCurves.argtypes = [
    ctypes.c_size_t,  # hSslProvider : NCRYPT_PROV_HANDLE
    ctypes.POINTER(wintypes.DWORD),  # pEccCurveCount : DWORD* out
    ctypes.c_void_p,  # ppEccCurve : NCRYPT_SSL_ECC_CURVE** out
    wintypes.DWORD,  # dwFlags : DWORD
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('ncrypt.dll')
SslEnumEccCurves = Fiddle::Function.new(
  lib['SslEnumEccCurves'],
  [
    Fiddle::TYPE_UINTPTR_T,  # hSslProvider : NCRYPT_PROV_HANDLE
    Fiddle::TYPE_VOIDP,  # pEccCurveCount : DWORD* out
    Fiddle::TYPE_VOIDP,  # ppEccCurve : NCRYPT_SSL_ECC_CURVE** out
    -Fiddle::TYPE_INT,  # dwFlags : DWORD
  ],
  Fiddle::TYPE_INT)

#[link(name = "ncrypt")]
extern "system" {
    fn SslEnumEccCurves(
        hSslProvider: usize,  // NCRYPT_PROV_HANDLE
        pEccCurveCount: *mut u32,  // DWORD* out
        ppEccCurve: *mut *mut NCRYPT_SSL_ECC_CURVE,  // NCRYPT_SSL_ECC_CURVE** out
        dwFlags: u32  // DWORD
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("ncrypt.dll")]
public static extern int SslEnumEccCurves(UIntPtr hSslProvider, out uint pEccCurveCount, IntPtr ppEccCurve, uint dwFlags);
"@
$api = Add-Type -MemberDefinition $sig -Name 'ncrypt_SslEnumEccCurves' -Namespace Win32 -PassThru
# $api::SslEnumEccCurves(hSslProvider, pEccCurveCount, ppEccCurve, dwFlags)

#uselib "ncrypt.dll"
#func global SslEnumEccCurves "SslEnumEccCurves" sptr, sptr, sptr, sptr
; SslEnumEccCurves hSslProvider, varptr(pEccCurveCount), varptr(ppEccCurve), dwFlags   ; 戻り値は stat
; hSslProvider : NCRYPT_PROV_HANDLE -> "sptr"
; pEccCurveCount : DWORD* out -> "sptr"
; ppEccCurve : NCRYPT_SSL_ECC_CURVE** out -> "sptr"
; dwFlags : 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 (
	ncrypt = windows.NewLazySystemDLL("ncrypt.dll")
	procSslEnumEccCurves = ncrypt.NewProc("SslEnumEccCurves")
)

// hSslProvider (NCRYPT_PROV_HANDLE), pEccCurveCount (DWORD* out), ppEccCurve (NCRYPT_SSL_ECC_CURVE** out), dwFlags (DWORD)
r1, _, err := procSslEnumEccCurves.Call(
	uintptr(hSslProvider),
	uintptr(pEccCurveCount),
	uintptr(ppEccCurve),
	uintptr(dwFlags),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function SslEnumEccCurves(
  hSslProvider: NativeUInt;   // NCRYPT_PROV_HANDLE
  pEccCurveCount: Pointer;   // DWORD* out
  ppEccCurve: Pointer;   // NCRYPT_SSL_ECC_CURVE** out
  dwFlags: DWORD   // DWORD
): Integer; stdcall;
  external 'ncrypt.dll' name 'SslEnumEccCurves';

result := DllCall("ncrypt\SslEnumEccCurves"
    , "UPtr", hSslProvider   ; NCRYPT_PROV_HANDLE
    , "Ptr", pEccCurveCount   ; DWORD* out
    , "Ptr", ppEccCurve   ; NCRYPT_SSL_ECC_CURVE** out
    , "UInt", dwFlags   ; DWORD
    , "Int")   ; return: HRESULT

●SslEnumEccCurves(hSslProvider, pEccCurveCount, ppEccCurve, dwFlags) = DLL("ncrypt.dll", "int SslEnumEccCurves(int, void*, void*, dword)")
# 呼び出し: SslEnumEccCurves(hSslProvider, pEccCurveCount, ppEccCurve, dwFlags)
# hSslProvider : NCRYPT_PROV_HANDLE -> "int"
# pEccCurveCount : DWORD* out -> "void*"
# ppEccCurve : NCRYPT_SSL_ECC_CURVE** out -> "void*"
# dwFlags : 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 "ncrypt" fn SslEnumEccCurves(
    hSslProvider: usize, // NCRYPT_PROV_HANDLE
    pEccCurveCount: [*c]u32, // DWORD* out
    ppEccCurve: [*c][*c]NCRYPT_SSL_ECC_CURVE, // NCRYPT_SSL_ECC_CURVE** out
    dwFlags: u32 // DWORD
) callconv(std.os.windows.WINAPI) i32;

proc SslEnumEccCurves(
    hSslProvider: uint,  # NCRYPT_PROV_HANDLE
    pEccCurveCount: ptr uint32,  # DWORD* out
    ppEccCurve: ptr NCRYPT_SSL_ECC_CURVE,  # NCRYPT_SSL_ECC_CURVE** out
    dwFlags: uint32  # DWORD
): int32 {.importc: "SslEnumEccCurves", stdcall, dynlib: "ncrypt.dll".}

pragma(lib, "ncrypt");
extern(Windows)
int SslEnumEccCurves(
    size_t hSslProvider,   // NCRYPT_PROV_HANDLE
    uint* pEccCurveCount,   // DWORD* out
    NCRYPT_SSL_ECC_CURVE** ppEccCurve,   // NCRYPT_SSL_ECC_CURVE** out
    uint dwFlags   // DWORD
);

ccall((:SslEnumEccCurves, "ncrypt.dll"), stdcall, Int32,
      (Csize_t, Ptr{UInt32}, Ptr{NCRYPT_SSL_ECC_CURVE}, UInt32),
      hSslProvider, pEccCurveCount, ppEccCurve, dwFlags)
# hSslProvider : NCRYPT_PROV_HANDLE -> Csize_t
# pEccCurveCount : DWORD* out -> Ptr{UInt32}
# ppEccCurve : NCRYPT_SSL_ECC_CURVE** out -> Ptr{NCRYPT_SSL_ECC_CURVE}
# dwFlags : 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 SslEnumEccCurves(
    uintptr_t hSslProvider,
    uint32_t* pEccCurveCount,
    void* ppEccCurve,
    uint32_t dwFlags);
]]
local ncrypt = ffi.load("ncrypt")
-- ncrypt.SslEnumEccCurves(hSslProvider, pEccCurveCount, ppEccCurve, dwFlags)
-- hSslProvider : NCRYPT_PROV_HANDLE
-- pEccCurveCount : DWORD* out
-- ppEccCurve : NCRYPT_SSL_ECC_CURVE** out
-- dwFlags : 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('ncrypt.dll');
const SslEnumEccCurves = lib.func('__stdcall', 'SslEnumEccCurves', 'int32_t', ['uintptr_t', 'uint32_t *', 'void *', 'uint32_t']);
// SslEnumEccCurves(hSslProvider, pEccCurveCount, ppEccCurve, dwFlags)
// hSslProvider : NCRYPT_PROV_HANDLE -> 'uintptr_t'
// pEccCurveCount : DWORD* out -> 'uint32_t *'
// ppEccCurve : NCRYPT_SSL_ECC_CURVE** out -> 'void *'
// dwFlags : 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("ncrypt.dll", {
  SslEnumEccCurves: { parameters: ["usize", "pointer", "pointer", "u32"], result: "i32" },
});
// lib.symbols.SslEnumEccCurves(hSslProvider, pEccCurveCount, ppEccCurve, dwFlags)
// hSslProvider : NCRYPT_PROV_HANDLE -> "usize"
// pEccCurveCount : DWORD* out -> "pointer"
// ppEccCurve : NCRYPT_SSL_ECC_CURVE** out -> "pointer"
// dwFlags : 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 SslEnumEccCurves(
    size_t hSslProvider,
    uint32_t* pEccCurveCount,
    void* ppEccCurve,
    uint32_t dwFlags);
C, "ncrypt.dll");
// $ffi->SslEnumEccCurves(hSslProvider, pEccCurveCount, ppEccCurve, dwFlags);
// hSslProvider : NCRYPT_PROV_HANDLE
// pEccCurveCount : DWORD* out
// ppEccCurve : NCRYPT_SSL_ECC_CURVE** out
// dwFlags : 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 Ncrypt extends StdCallLibrary {
    Ncrypt INSTANCE = Native.load("ncrypt", Ncrypt.class);
    int SslEnumEccCurves(
        long hSslProvider,   // NCRYPT_PROV_HANDLE
        IntByReference pEccCurveCount,   // DWORD* out
        Pointer ppEccCurve,   // NCRYPT_SSL_ECC_CURVE** out
        int dwFlags   // DWORD
    );
}

@[Link("ncrypt")]
lib Libncrypt
  fun SslEnumEccCurves = SslEnumEccCurves(
    hSslProvider : LibC::SizeT,   # NCRYPT_PROV_HANDLE
    pEccCurveCount : UInt32*,   # DWORD* out
    ppEccCurve : NCRYPT_SSL_ECC_CURVE**,   # NCRYPT_SSL_ECC_CURVE** out
    dwFlags : 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 SslEnumEccCurvesNative = Int32 Function(UintPtr, Pointer<Uint32>, Pointer<Void>, Uint32);
typedef SslEnumEccCurvesDart = int Function(int, Pointer<Uint32>, Pointer<Void>, int);
final SslEnumEccCurves = DynamicLibrary.open('ncrypt.dll')
    .lookupFunction<SslEnumEccCurvesNative, SslEnumEccCurvesDart>('SslEnumEccCurves');
// hSslProvider : NCRYPT_PROV_HANDLE -> UintPtr
// pEccCurveCount : DWORD* out -> Pointer<Uint32>
// ppEccCurve : NCRYPT_SSL_ECC_CURVE** out -> Pointer<Void>
// dwFlags : DWORD -> Uint32
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function SslEnumEccCurves(
  hSslProvider: NativeUInt;   // NCRYPT_PROV_HANDLE
  pEccCurveCount: Pointer;   // DWORD* out
  ppEccCurve: Pointer;   // NCRYPT_SSL_ECC_CURVE** out
  dwFlags: DWORD   // DWORD
): Integer; stdcall;
  external 'ncrypt.dll' name 'SslEnumEccCurves';

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

foreign import stdcall safe "SslEnumEccCurves"
  c_SslEnumEccCurves :: CUIntPtr -> Ptr Word32 -> Ptr () -> Word32 -> IO Int32
-- hSslProvider : NCRYPT_PROV_HANDLE -> CUIntPtr
-- pEccCurveCount : DWORD* out -> Ptr Word32
-- ppEccCurve : NCRYPT_SSL_ECC_CURVE** out -> Ptr ()
-- dwFlags : 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 sslenumecccurves =
  foreign "SslEnumEccCurves"
    (size_t @-> (ptr uint32_t) @-> (ptr void) @-> uint32_t @-> returning int32_t)
(* hSslProvider : NCRYPT_PROV_HANDLE -> size_t *)
(* pEccCurveCount : DWORD* out -> (ptr uint32_t) *)
(* ppEccCurve : NCRYPT_SSL_ECC_CURVE** out -> (ptr void) *)
(* dwFlags : 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 ncrypt (t "ncrypt.dll"))
(cffi:use-foreign-library ncrypt)

(cffi:defcfun ("SslEnumEccCurves" ssl-enum-ecc-curves :convention :stdcall) :int32
  (h-ssl-provider :uint64)   ; NCRYPT_PROV_HANDLE
  (p-ecc-curve-count :pointer)   ; DWORD* out
  (pp-ecc-curve :pointer)   ; NCRYPT_SSL_ECC_CURVE** out
  (dw-flags :uint32))   ; DWORD
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $SslEnumEccCurves = Win32::API::More->new('ncrypt',
    'int SslEnumEccCurves(WPARAM hSslProvider, LPVOID pEccCurveCount, LPVOID ppEccCurve, DWORD dwFlags)');
# my $ret = $SslEnumEccCurves->Call($hSslProvider, $pEccCurveCount, $ppEccCurve, $dwFlags);
# hSslProvider : NCRYPT_PROV_HANDLE -> WPARAM
# pEccCurveCount : DWORD* out -> LPVOID
# ppEccCurve : NCRYPT_SSL_ECC_CURVE** out -> LPVOID
# dwFlags : DWORD -> DWORD
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。