AcceptEx

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

BOOL AcceptEx(
    SOCKET sListenSocket,
    SOCKET sAcceptSocket,
    void* lpOutputBuffer,
    DWORD dwReceiveDataLength,
    DWORD dwLocalAddressLength,
    DWORD dwRemoteAddressLength,
    DWORD* lpdwBytesReceived,
    OVERLAPPED* lpOverlapped
);

<DllImport("MSWSOCK.dll", ExactSpelling:=True)>
Public Shared Function AcceptEx(
    sListenSocket As UIntPtr,   ' SOCKET
    sAcceptSocket As UIntPtr,   ' SOCKET
    lpOutputBuffer As IntPtr,   ' void* out
    dwReceiveDataLength As UInteger,   ' DWORD
    dwLocalAddressLength As UInteger,   ' DWORD
    dwRemoteAddressLength As UInteger,   ' DWORD
    <Out> ByRef lpdwBytesReceived As UInteger,   ' DWORD* out
    lpOverlapped As IntPtr   ' OVERLAPPED* in/out
) As Boolean
End Function

' sListenSocket : SOCKET
' sAcceptSocket : SOCKET
' lpOutputBuffer : void* out
' dwReceiveDataLength : DWORD
' dwLocalAddressLength : DWORD
' dwRemoteAddressLength : DWORD
' lpdwBytesReceived : DWORD* out
' lpOverlapped : OVERLAPPED* in/out
Declare PtrSafe Function AcceptEx Lib "mswsock" ( _
    ByVal sListenSocket As LongPtr, _
    ByVal sAcceptSocket As LongPtr, _
    ByVal lpOutputBuffer As LongPtr, _
    ByVal dwReceiveDataLength As Long, _
    ByVal dwLocalAddressLength As Long, _
    ByVal dwRemoteAddressLength As Long, _
    ByRef lpdwBytesReceived As Long, _
    ByVal lpOverlapped 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

AcceptEx = ctypes.windll.mswsock.AcceptEx
AcceptEx.restype = wintypes.BOOL
AcceptEx.argtypes = [
    ctypes.c_size_t,  # sListenSocket : SOCKET
    ctypes.c_size_t,  # sAcceptSocket : SOCKET
    ctypes.POINTER(None),  # lpOutputBuffer : void* out
    wintypes.DWORD,  # dwReceiveDataLength : DWORD
    wintypes.DWORD,  # dwLocalAddressLength : DWORD
    wintypes.DWORD,  # dwRemoteAddressLength : DWORD
    ctypes.POINTER(wintypes.DWORD),  # lpdwBytesReceived : DWORD* out
    ctypes.c_void_p,  # lpOverlapped : OVERLAPPED* in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('MSWSOCK.dll')
AcceptEx = Fiddle::Function.new(
  lib['AcceptEx'],
  [
    Fiddle::TYPE_UINTPTR_T,  # sListenSocket : SOCKET
    Fiddle::TYPE_UINTPTR_T,  # sAcceptSocket : SOCKET
    Fiddle::TYPE_VOIDP,  # lpOutputBuffer : void* out
    -Fiddle::TYPE_INT,  # dwReceiveDataLength : DWORD
    -Fiddle::TYPE_INT,  # dwLocalAddressLength : DWORD
    -Fiddle::TYPE_INT,  # dwRemoteAddressLength : DWORD
    Fiddle::TYPE_VOIDP,  # lpdwBytesReceived : DWORD* out
    Fiddle::TYPE_VOIDP,  # lpOverlapped : OVERLAPPED* in/out
  ],
  Fiddle::TYPE_INT)

#[link(name = "mswsock")]
extern "system" {
    fn AcceptEx(
        sListenSocket: usize,  // SOCKET
        sAcceptSocket: usize,  // SOCKET
        lpOutputBuffer: *mut (),  // void* out
        dwReceiveDataLength: u32,  // DWORD
        dwLocalAddressLength: u32,  // DWORD
        dwRemoteAddressLength: u32,  // DWORD
        lpdwBytesReceived: *mut u32,  // DWORD* out
        lpOverlapped: *mut OVERLAPPED  // OVERLAPPED* in/out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("MSWSOCK.dll")]
public static extern bool AcceptEx(UIntPtr sListenSocket, UIntPtr sAcceptSocket, IntPtr lpOutputBuffer, uint dwReceiveDataLength, uint dwLocalAddressLength, uint dwRemoteAddressLength, out uint lpdwBytesReceived, IntPtr lpOverlapped);
"@
$api = Add-Type -MemberDefinition $sig -Name 'MSWSOCK_AcceptEx' -Namespace Win32 -PassThru
# $api::AcceptEx(sListenSocket, sAcceptSocket, lpOutputBuffer, dwReceiveDataLength, dwLocalAddressLength, dwRemoteAddressLength, lpdwBytesReceived, lpOverlapped)

#uselib "MSWSOCK.dll"
#func global AcceptEx "AcceptEx" sptr, sptr, sptr, sptr, sptr, sptr, sptr, sptr
; AcceptEx sListenSocket, sAcceptSocket, lpOutputBuffer, dwReceiveDataLength, dwLocalAddressLength, dwRemoteAddressLength, varptr(lpdwBytesReceived), varptr(lpOverlapped)   ; 戻り値は stat
; sListenSocket : SOCKET -> "sptr"
; sAcceptSocket : SOCKET -> "sptr"
; lpOutputBuffer : void* out -> "sptr"
; dwReceiveDataLength : DWORD -> "sptr"
; dwLocalAddressLength : DWORD -> "sptr"
; dwRemoteAddressLength : DWORD -> "sptr"
; lpdwBytesReceived : DWORD* out -> "sptr"
; lpOverlapped : OVERLAPPED* in/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。

#uselib "MSWSOCK.dll"
#cfunc global AcceptEx "AcceptEx" sptr, sptr, sptr, int, int, int, var, var
; res = AcceptEx(sListenSocket, sAcceptSocket, lpOutputBuffer, dwReceiveDataLength, dwLocalAddressLength, dwRemoteAddressLength, lpdwBytesReceived, lpOverlapped)
; sListenSocket : SOCKET -> "sptr"
; sAcceptSocket : SOCKET -> "sptr"
; lpOutputBuffer : void* out -> "sptr"
; dwReceiveDataLength : DWORD -> "int"
; dwLocalAddressLength : DWORD -> "int"
; dwRemoteAddressLength : DWORD -> "int"
; lpdwBytesReceived : DWORD* out -> "var"
; lpOverlapped : OVERLAPPED* in/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。

; BOOL AcceptEx(SOCKET sListenSocket, SOCKET sAcceptSocket, void* lpOutputBuffer, DWORD dwReceiveDataLength, DWORD dwLocalAddressLength, DWORD dwRemoteAddressLength, DWORD* lpdwBytesReceived, OVERLAPPED* lpOverlapped)
#uselib "MSWSOCK.dll"
#cfunc global AcceptEx "AcceptEx" intptr, intptr, intptr, int, int, int, var, var
; res = AcceptEx(sListenSocket, sAcceptSocket, lpOutputBuffer, dwReceiveDataLength, dwLocalAddressLength, dwRemoteAddressLength, lpdwBytesReceived, lpOverlapped)
; sListenSocket : SOCKET -> "intptr"
; sAcceptSocket : SOCKET -> "intptr"
; lpOutputBuffer : void* out -> "intptr"
; dwReceiveDataLength : DWORD -> "int"
; dwLocalAddressLength : DWORD -> "int"
; dwRemoteAddressLength : DWORD -> "int"
; lpdwBytesReceived : DWORD* out -> "var"
; lpOverlapped : OVERLAPPED* in/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。

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

var (
	mswsock = windows.NewLazySystemDLL("MSWSOCK.dll")
	procAcceptEx = mswsock.NewProc("AcceptEx")
)

// sListenSocket (SOCKET), sAcceptSocket (SOCKET), lpOutputBuffer (void* out), dwReceiveDataLength (DWORD), dwLocalAddressLength (DWORD), dwRemoteAddressLength (DWORD), lpdwBytesReceived (DWORD* out), lpOverlapped (OVERLAPPED* in/out)
r1, _, err := procAcceptEx.Call(
	uintptr(sListenSocket),
	uintptr(sAcceptSocket),
	uintptr(lpOutputBuffer),
	uintptr(dwReceiveDataLength),
	uintptr(dwLocalAddressLength),
	uintptr(dwRemoteAddressLength),
	uintptr(lpdwBytesReceived),
	uintptr(lpOverlapped),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function AcceptEx(
  sListenSocket: NativeUInt;   // SOCKET
  sAcceptSocket: NativeUInt;   // SOCKET
  lpOutputBuffer: Pointer;   // void* out
  dwReceiveDataLength: DWORD;   // DWORD
  dwLocalAddressLength: DWORD;   // DWORD
  dwRemoteAddressLength: DWORD;   // DWORD
  lpdwBytesReceived: Pointer;   // DWORD* out
  lpOverlapped: Pointer   // OVERLAPPED* in/out
): BOOL; stdcall;
  external 'MSWSOCK.dll' name 'AcceptEx';

result := DllCall("MSWSOCK\AcceptEx"
    , "UPtr", sListenSocket   ; SOCKET
    , "UPtr", sAcceptSocket   ; SOCKET
    , "Ptr", lpOutputBuffer   ; void* out
    , "UInt", dwReceiveDataLength   ; DWORD
    , "UInt", dwLocalAddressLength   ; DWORD
    , "UInt", dwRemoteAddressLength   ; DWORD
    , "Ptr", lpdwBytesReceived   ; DWORD* out
    , "Ptr", lpOverlapped   ; OVERLAPPED* in/out
    , "Int")   ; return: BOOL

●AcceptEx(sListenSocket, sAcceptSocket, lpOutputBuffer, dwReceiveDataLength, dwLocalAddressLength, dwRemoteAddressLength, lpdwBytesReceived, lpOverlapped) = DLL("MSWSOCK.dll", "bool AcceptEx(int, int, void*, dword, dword, dword, void*, void*)")
# 呼び出し: AcceptEx(sListenSocket, sAcceptSocket, lpOutputBuffer, dwReceiveDataLength, dwLocalAddressLength, dwRemoteAddressLength, lpdwBytesReceived, lpOverlapped)
# sListenSocket : SOCKET -> "int"
# sAcceptSocket : SOCKET -> "int"
# lpOutputBuffer : void* out -> "void*"
# dwReceiveDataLength : DWORD -> "dword"
# dwLocalAddressLength : DWORD -> "dword"
# dwRemoteAddressLength : DWORD -> "dword"
# lpdwBytesReceived : DWORD* out -> "void*"
# lpOverlapped : OVERLAPPED* in/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)。