WSAHtons

// WS2_32.dll
#include <windows.h>

INT WSAHtons(
    SOCKET s,
    WORD hostshort,
    WORD* lpnetshort
);

<DllImport("WS2_32.dll", SetLastError:=True, ExactSpelling:=True)>
Public Shared Function WSAHtons(
    s As UIntPtr,   ' SOCKET
    hostshort As UShort,   ' WORD
    <Out> ByRef lpnetshort As UShort   ' WORD* out
) As Integer
End Function

' s : SOCKET
' hostshort : WORD
' lpnetshort : WORD* out
Declare PtrSafe Function WSAHtons Lib "ws2_32" ( _
    ByVal s As LongPtr, _
    ByVal hostshort As Integer, _
    ByRef lpnetshort As Integer) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

WSAHtons = ctypes.windll.ws2_32.WSAHtons
WSAHtons.restype = ctypes.c_int
WSAHtons.argtypes = [
    ctypes.c_size_t,  # s : SOCKET
    ctypes.c_ushort,  # hostshort : WORD
    ctypes.POINTER(ctypes.c_ushort),  # lpnetshort : WORD* out
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('WS2_32.dll')
WSAHtons = Fiddle::Function.new(
  lib['WSAHtons'],
  [
    Fiddle::TYPE_UINTPTR_T,  # s : SOCKET
    -Fiddle::TYPE_SHORT,  # hostshort : WORD
    Fiddle::TYPE_VOIDP,  # lpnetshort : WORD* out
  ],
  Fiddle::TYPE_INT)

#[link(name = "ws2_32")]
extern "system" {
    fn WSAHtons(
        s: usize,  // SOCKET
        hostshort: u16,  // WORD
        lpnetshort: *mut u16  // WORD* out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("WS2_32.dll", SetLastError = true)]
public static extern int WSAHtons(UIntPtr s, ushort hostshort, out ushort lpnetshort);
"@
$api = Add-Type -MemberDefinition $sig -Name 'WS2_32_WSAHtons' -Namespace Win32 -PassThru
# $api::WSAHtons(s, hostshort, lpnetshort)

#uselib "WS2_32.dll"
#func global WSAHtons "WSAHtons" sptr, sptr, sptr
; WSAHtons s, hostshort, varptr(lpnetshort)   ; 戻り値は stat
; s : SOCKET -> "sptr"
; hostshort : WORD -> "sptr"
; lpnetshort : WORD* 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 (
	ws2_32 = windows.NewLazySystemDLL("WS2_32.dll")
	procWSAHtons = ws2_32.NewProc("WSAHtons")
)

// s (SOCKET), hostshort (WORD), lpnetshort (WORD* out)
r1, _, err := procWSAHtons.Call(
	uintptr(s),
	uintptr(hostshort),
	uintptr(lpnetshort),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // INT

function WSAHtons(
  s: NativeUInt;   // SOCKET
  hostshort: Word;   // WORD
  lpnetshort: Pointer   // WORD* out
): Integer; stdcall;
  external 'WS2_32.dll' name 'WSAHtons';

result := DllCall("WS2_32\WSAHtons"
    , "UPtr", s   ; SOCKET
    , "UShort", hostshort   ; WORD
    , "Ptr", lpnetshort   ; WORD* out
    , "Int")   ; return: INT

●WSAHtons(s, hostshort, lpnetshort) = DLL("WS2_32.dll", "int WSAHtons(int, int, void*)")
# 呼び出し: WSAHtons(s, hostshort, lpnetshort)
# s : SOCKET -> "int"
# hostshort : WORD -> "int"
# lpnetshort : WORD* 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 "ws2_32" fn WSAHtons(
    s: usize, // SOCKET
    hostshort: u16, // WORD
    lpnetshort: [*c]u16 // WORD* out
) callconv(std.os.windows.WINAPI) i32;

proc WSAHtons(
    s: uint,  # SOCKET
    hostshort: uint16,  # WORD
    lpnetshort: ptr uint16  # WORD* out
): int32 {.importc: "WSAHtons", stdcall, dynlib: "WS2_32.dll".}

pragma(lib, "ws2_32");
extern(Windows)
int WSAHtons(
    size_t s,   // SOCKET
    ushort hostshort,   // WORD
    ushort* lpnetshort   // WORD* out
);

ccall((:WSAHtons, "WS2_32.dll"), stdcall, Int32,
      (Csize_t, UInt16, Ptr{UInt16}),
      s, hostshort, lpnetshort)
# s : SOCKET -> Csize_t
# hostshort : WORD -> UInt16
# lpnetshort : WORD* out -> Ptr{UInt16}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
int32_t WSAHtons(
    uintptr_t s,
    uint16_t hostshort,
    uint16_t* lpnetshort);
]]
local ws2_32 = ffi.load("ws2_32")
-- ws2_32.WSAHtons(s, hostshort, lpnetshort)
-- s : SOCKET
-- hostshort : WORD
-- lpnetshort : WORD* 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('WS2_32.dll');
const WSAHtons = lib.func('__stdcall', 'WSAHtons', 'int32_t', ['uintptr_t', 'uint16_t', 'uint16_t *']);
// WSAHtons(s, hostshort, lpnetshort)
// s : SOCKET -> 'uintptr_t'
// hostshort : WORD -> 'uint16_t'
// lpnetshort : WORD* out -> 'uint16_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("WS2_32.dll", {
  WSAHtons: { parameters: ["usize", "u16", "pointer"], result: "i32" },
});
// lib.symbols.WSAHtons(s, hostshort, lpnetshort)
// s : SOCKET -> "usize"
// hostshort : WORD -> "u16"
// lpnetshort : WORD* 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 WSAHtons(
    size_t s,
    uint16_t hostshort,
    uint16_t* lpnetshort);
C, "WS2_32.dll");
// $ffi->WSAHtons(s, hostshort, lpnetshort);
// s : SOCKET
// hostshort : WORD
// lpnetshort : WORD* 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 Ws2_32 extends StdCallLibrary {
    Ws2_32 INSTANCE = Native.load("ws2_32", Ws2_32.class);
    int WSAHtons(
        long s,   // SOCKET
        short hostshort,   // WORD
        ShortByReference lpnetshort   // WORD* out
    );
}

@[Link("ws2_32")]
lib LibWS2_32
  fun WSAHtons = WSAHtons(
    s : LibC::SizeT,   # SOCKET
    hostshort : UInt16,   # WORD
    lpnetshort : UInt16*   # WORD* 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 WSAHtonsNative = Int32 Function(UintPtr, Uint16, Pointer<Uint16>);
typedef WSAHtonsDart = int Function(int, int, Pointer<Uint16>);
final WSAHtons = DynamicLibrary.open('WS2_32.dll')
    .lookupFunction<WSAHtonsNative, WSAHtonsDart>('WSAHtons');
// s : SOCKET -> UintPtr
// hostshort : WORD -> Uint16
// lpnetshort : WORD* out -> Pointer<Uint16>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function WSAHtons(
  s: NativeUInt;   // SOCKET
  hostshort: Word;   // WORD
  lpnetshort: Pointer   // WORD* out
): Integer; stdcall;
  external 'WS2_32.dll' name 'WSAHtons';

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

foreign import stdcall safe "WSAHtons"
  c_WSAHtons :: CUIntPtr -> Word16 -> Ptr Word16 -> IO Int32
-- s : SOCKET -> CUIntPtr
-- hostshort : WORD -> Word16
-- lpnetshort : WORD* out -> Ptr Word16
-- 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 wsahtons =
  foreign "WSAHtons"
    (size_t @-> uint16_t @-> (ptr uint16_t) @-> returning int32_t)
(* s : SOCKET -> size_t *)
(* hostshort : WORD -> uint16_t *)
(* lpnetshort : WORD* out -> (ptr uint16_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 ws2_32 (t "WS2_32.dll"))
(cffi:use-foreign-library ws2_32)

(cffi:defcfun ("WSAHtons" wsahtons :convention :stdcall) :int32
  (s :uint64)   ; SOCKET
  (hostshort :uint16)   ; WORD
  (lpnetshort :pointer))   ; WORD* out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $WSAHtons = Win32::API::More->new('WS2_32',
    'int WSAHtons(WPARAM s, WORD hostshort, LPVOID lpnetshort)');
# my $ret = $WSAHtons->Call($s, $hostshort, $lpnetshort);
# s : SOCKET -> WPARAM
# hostshort : WORD -> WORD
# lpnetshort : WORD* out -> LPVOID
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。