EapHostPeerGetSendPacket

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

DWORD EapHostPeerGetSendPacket(
    DWORD sessionHandle,
    DWORD* pcbSendPacket,
    BYTE** ppSendPacket,
    EAP_ERROR** ppEapError
);

<DllImport("eappprxy.dll", ExactSpelling:=True)>
Public Shared Function EapHostPeerGetSendPacket(
    sessionHandle As UInteger,   ' DWORD
    <Out> ByRef pcbSendPacket As UInteger,   ' DWORD* out
    ppSendPacket As IntPtr,   ' BYTE** out
    ppEapError As IntPtr   ' EAP_ERROR** out
) As UInteger
End Function

' sessionHandle : DWORD
' pcbSendPacket : DWORD* out
' ppSendPacket : BYTE** out
' ppEapError : EAP_ERROR** out
Declare PtrSafe Function EapHostPeerGetSendPacket Lib "eappprxy" ( _
    ByVal sessionHandle As Long, _
    ByRef pcbSendPacket As Long, _
    ByVal ppSendPacket As LongPtr, _
    ByVal ppEapError 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

EapHostPeerGetSendPacket = ctypes.windll.eappprxy.EapHostPeerGetSendPacket
EapHostPeerGetSendPacket.restype = wintypes.DWORD
EapHostPeerGetSendPacket.argtypes = [
    wintypes.DWORD,  # sessionHandle : DWORD
    ctypes.POINTER(wintypes.DWORD),  # pcbSendPacket : DWORD* out
    ctypes.c_void_p,  # ppSendPacket : BYTE** out
    ctypes.c_void_p,  # ppEapError : EAP_ERROR** out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('eappprxy.dll')
EapHostPeerGetSendPacket = Fiddle::Function.new(
  lib['EapHostPeerGetSendPacket'],
  [
    -Fiddle::TYPE_INT,  # sessionHandle : DWORD
    Fiddle::TYPE_VOIDP,  # pcbSendPacket : DWORD* out
    Fiddle::TYPE_VOIDP,  # ppSendPacket : BYTE** out
    Fiddle::TYPE_VOIDP,  # ppEapError : EAP_ERROR** out
  ],
  -Fiddle::TYPE_INT)

#[link(name = "eappprxy")]
extern "system" {
    fn EapHostPeerGetSendPacket(
        sessionHandle: u32,  // DWORD
        pcbSendPacket: *mut u32,  // DWORD* out
        ppSendPacket: *mut *mut u8,  // BYTE** out
        ppEapError: *mut *mut EAP_ERROR  // EAP_ERROR** out
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("eappprxy.dll")]
public static extern uint EapHostPeerGetSendPacket(uint sessionHandle, out uint pcbSendPacket, IntPtr ppSendPacket, IntPtr ppEapError);
"@
$api = Add-Type -MemberDefinition $sig -Name 'eappprxy_EapHostPeerGetSendPacket' -Namespace Win32 -PassThru
# $api::EapHostPeerGetSendPacket(sessionHandle, pcbSendPacket, ppSendPacket, ppEapError)

#uselib "eappprxy.dll"
#func global EapHostPeerGetSendPacket "EapHostPeerGetSendPacket" sptr, sptr, sptr, sptr
; EapHostPeerGetSendPacket sessionHandle, varptr(pcbSendPacket), varptr(ppSendPacket), varptr(ppEapError)   ; 戻り値は stat
; sessionHandle : DWORD -> "sptr"
; pcbSendPacket : DWORD* out -> "sptr"
; ppSendPacket : BYTE** out -> "sptr"
; ppEapError : EAP_ERROR** 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 (
	eappprxy = windows.NewLazySystemDLL("eappprxy.dll")
	procEapHostPeerGetSendPacket = eappprxy.NewProc("EapHostPeerGetSendPacket")
)

// sessionHandle (DWORD), pcbSendPacket (DWORD* out), ppSendPacket (BYTE** out), ppEapError (EAP_ERROR** out)
r1, _, err := procEapHostPeerGetSendPacket.Call(
	uintptr(sessionHandle),
	uintptr(pcbSendPacket),
	uintptr(ppSendPacket),
	uintptr(ppEapError),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function EapHostPeerGetSendPacket(
  sessionHandle: DWORD;   // DWORD
  pcbSendPacket: Pointer;   // DWORD* out
  ppSendPacket: Pointer;   // BYTE** out
  ppEapError: Pointer   // EAP_ERROR** out
): DWORD; stdcall;
  external 'eappprxy.dll' name 'EapHostPeerGetSendPacket';

result := DllCall("eappprxy\EapHostPeerGetSendPacket"
    , "UInt", sessionHandle   ; DWORD
    , "Ptr", pcbSendPacket   ; DWORD* out
    , "Ptr", ppSendPacket   ; BYTE** out
    , "Ptr", ppEapError   ; EAP_ERROR** out
    , "UInt")   ; return: DWORD

●EapHostPeerGetSendPacket(sessionHandle, pcbSendPacket, ppSendPacket, ppEapError) = DLL("eappprxy.dll", "dword EapHostPeerGetSendPacket(dword, void*, void*, void*)")
# 呼び出し: EapHostPeerGetSendPacket(sessionHandle, pcbSendPacket, ppSendPacket, ppEapError)
# sessionHandle : DWORD -> "dword"
# pcbSendPacket : DWORD* out -> "void*"
# ppSendPacket : BYTE** out -> "void*"
# ppEapError : EAP_ERROR** 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 "eappprxy" fn EapHostPeerGetSendPacket(
    sessionHandle: u32, // DWORD
    pcbSendPacket: [*c]u32, // DWORD* out
    ppSendPacket: [*c][*c]u8, // BYTE** out
    ppEapError: [*c][*c]EAP_ERROR // EAP_ERROR** out
) callconv(std.os.windows.WINAPI) u32;

proc EapHostPeerGetSendPacket(
    sessionHandle: uint32,  # DWORD
    pcbSendPacket: ptr uint32,  # DWORD* out
    ppSendPacket: ptr uint8,  # BYTE** out
    ppEapError: ptr EAP_ERROR  # EAP_ERROR** out
): uint32 {.importc: "EapHostPeerGetSendPacket", stdcall, dynlib: "eappprxy.dll".}

pragma(lib, "eappprxy");
extern(Windows)
uint EapHostPeerGetSendPacket(
    uint sessionHandle,   // DWORD
    uint* pcbSendPacket,   // DWORD* out
    ubyte** ppSendPacket,   // BYTE** out
    EAP_ERROR** ppEapError   // EAP_ERROR** out
);

ccall((:EapHostPeerGetSendPacket, "eappprxy.dll"), stdcall, UInt32,
      (UInt32, Ptr{UInt32}, Ptr{UInt8}, Ptr{EAP_ERROR}),
      sessionHandle, pcbSendPacket, ppSendPacket, ppEapError)
# sessionHandle : DWORD -> UInt32
# pcbSendPacket : DWORD* out -> Ptr{UInt32}
# ppSendPacket : BYTE** out -> Ptr{UInt8}
# ppEapError : EAP_ERROR** out -> Ptr{EAP_ERROR}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
uint32_t EapHostPeerGetSendPacket(
    uint32_t sessionHandle,
    uint32_t* pcbSendPacket,
    uint8_t** ppSendPacket,
    void* ppEapError);
]]
local eappprxy = ffi.load("eappprxy")
-- eappprxy.EapHostPeerGetSendPacket(sessionHandle, pcbSendPacket, ppSendPacket, ppEapError)
-- sessionHandle : DWORD
-- pcbSendPacket : DWORD* out
-- ppSendPacket : BYTE** out
-- ppEapError : EAP_ERROR** 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('eappprxy.dll');
const EapHostPeerGetSendPacket = lib.func('__stdcall', 'EapHostPeerGetSendPacket', 'uint32_t', ['uint32_t', 'uint32_t *', 'uint8_t *', 'void *']);
// EapHostPeerGetSendPacket(sessionHandle, pcbSendPacket, ppSendPacket, ppEapError)
// sessionHandle : DWORD -> 'uint32_t'
// pcbSendPacket : DWORD* out -> 'uint32_t *'
// ppSendPacket : BYTE** out -> 'uint8_t *'
// ppEapError : EAP_ERROR** 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("eappprxy.dll", {
  EapHostPeerGetSendPacket: { parameters: ["u32", "pointer", "pointer", "pointer"], result: "u32" },
});
// lib.symbols.EapHostPeerGetSendPacket(sessionHandle, pcbSendPacket, ppSendPacket, ppEapError)
// sessionHandle : DWORD -> "u32"
// pcbSendPacket : DWORD* out -> "pointer"
// ppSendPacket : BYTE** out -> "pointer"
// ppEapError : EAP_ERROR** 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
uint32_t EapHostPeerGetSendPacket(
    uint32_t sessionHandle,
    uint32_t* pcbSendPacket,
    uint8_t** ppSendPacket,
    void* ppEapError);
C, "eappprxy.dll");
// $ffi->EapHostPeerGetSendPacket(sessionHandle, pcbSendPacket, ppSendPacket, ppEapError);
// sessionHandle : DWORD
// pcbSendPacket : DWORD* out
// ppSendPacket : BYTE** out
// ppEapError : EAP_ERROR** 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 Eappprxy extends StdCallLibrary {
    Eappprxy INSTANCE = Native.load("eappprxy", Eappprxy.class);
    int EapHostPeerGetSendPacket(
        int sessionHandle,   // DWORD
        IntByReference pcbSendPacket,   // DWORD* out
        Pointer ppSendPacket,   // BYTE** out
        Pointer ppEapError   // EAP_ERROR** out
    );
}

@[Link("eappprxy")]
lib Libeappprxy
  fun EapHostPeerGetSendPacket = EapHostPeerGetSendPacket(
    sessionHandle : UInt32,   # DWORD
    pcbSendPacket : UInt32*,   # DWORD* out
    ppSendPacket : UInt8**,   # BYTE** out
    ppEapError : EAP_ERROR**   # EAP_ERROR** out
  ) : UInt32
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 EapHostPeerGetSendPacketNative = Uint32 Function(Uint32, Pointer<Uint32>, Pointer<Uint8>, Pointer<Void>);
typedef EapHostPeerGetSendPacketDart = int Function(int, Pointer<Uint32>, Pointer<Uint8>, Pointer<Void>);
final EapHostPeerGetSendPacket = DynamicLibrary.open('eappprxy.dll')
    .lookupFunction<EapHostPeerGetSendPacketNative, EapHostPeerGetSendPacketDart>('EapHostPeerGetSendPacket');
// sessionHandle : DWORD -> Uint32
// pcbSendPacket : DWORD* out -> Pointer<Uint32>
// ppSendPacket : BYTE** out -> Pointer<Uint8>
// ppEapError : EAP_ERROR** out -> Pointer<Void>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function EapHostPeerGetSendPacket(
  sessionHandle: DWORD;   // DWORD
  pcbSendPacket: Pointer;   // DWORD* out
  ppSendPacket: Pointer;   // BYTE** out
  ppEapError: Pointer   // EAP_ERROR** out
): DWORD; stdcall;
  external 'eappprxy.dll' name 'EapHostPeerGetSendPacket';

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

foreign import stdcall safe "EapHostPeerGetSendPacket"
  c_EapHostPeerGetSendPacket :: Word32 -> Ptr Word32 -> Ptr Word8 -> Ptr () -> IO Word32
-- sessionHandle : DWORD -> Word32
-- pcbSendPacket : DWORD* out -> Ptr Word32
-- ppSendPacket : BYTE** out -> Ptr Word8
-- ppEapError : EAP_ERROR** 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。

open Ctypes
open Foreign

let eaphostpeergetsendpacket =
  foreign "EapHostPeerGetSendPacket"
    (uint32_t @-> (ptr uint32_t) @-> (ptr uint8_t) @-> (ptr void) @-> returning uint32_t)
(* sessionHandle : DWORD -> uint32_t *)
(* pcbSendPacket : DWORD* out -> (ptr uint32_t) *)
(* ppSendPacket : BYTE** out -> (ptr uint8_t) *)
(* ppEapError : EAP_ERROR** 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 eappprxy (t "eappprxy.dll"))
(cffi:use-foreign-library eappprxy)

(cffi:defcfun ("EapHostPeerGetSendPacket" eap-host-peer-get-send-packet :convention :stdcall) :uint32
  (session-handle :uint32)   ; DWORD
  (pcb-send-packet :pointer)   ; DWORD* out
  (pp-send-packet :pointer)   ; BYTE** out
  (pp-eap-error :pointer))   ; EAP_ERROR** out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $EapHostPeerGetSendPacket = Win32::API::More->new('eappprxy',
    'DWORD EapHostPeerGetSendPacket(DWORD sessionHandle, LPVOID pcbSendPacket, LPVOID ppSendPacket, LPVOID ppEapError)');
# my $ret = $EapHostPeerGetSendPacket->Call($sessionHandle, $pcbSendPacket, $ppSendPacket, $ppEapError);
# sessionHandle : DWORD -> DWORD
# pcbSendPacket : DWORD* out -> LPVOID
# ppSendPacket : BYTE** out -> LPVOID
# ppEapError : EAP_ERROR** out -> LPVOID
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。