WSASocketA

// WS2_32.dll  (ANSI / -A)
#include <windows.h>

SOCKET WSASocketA(
    INT af,
    INT type,
    INT protocol,
    WSAPROTOCOL_INFOA* lpProtocolInfo,   // optional
    DWORD g,
    DWORD dwFlags
);

<DllImport("WS2_32.dll", CharSet:=CharSet.Ansi, SetLastError:=True, ExactSpelling:=True)>
Public Shared Function WSASocketA(
    af As Integer,   ' INT
    type As Integer,   ' INT
    protocol As Integer,   ' INT
    lpProtocolInfo As IntPtr,   ' WSAPROTOCOL_INFOA* optional
    g As UInteger,   ' DWORD
    dwFlags As UInteger   ' DWORD
) As UIntPtr
End Function

' af : INT
' type : INT
' protocol : INT
' lpProtocolInfo : WSAPROTOCOL_INFOA* optional
' g : DWORD
' dwFlags : DWORD
Declare PtrSafe Function WSASocketA Lib "ws2_32" ( _
    ByVal af As Long, _
    ByVal type As Long, _
    ByVal protocol As Long, _
    ByVal lpProtocolInfo As LongPtr, _
    ByVal g As Long, _
    ByVal dwFlags As Long) As LongPtr
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

WSASocketA = ctypes.windll.ws2_32.WSASocketA
WSASocketA.restype = ctypes.c_size_t
WSASocketA.argtypes = [
    ctypes.c_int,  # af : INT
    ctypes.c_int,  # type : INT
    ctypes.c_int,  # protocol : INT
    ctypes.c_void_p,  # lpProtocolInfo : WSAPROTOCOL_INFOA* optional
    wintypes.DWORD,  # g : DWORD
    wintypes.DWORD,  # dwFlags : DWORD
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('WS2_32.dll')
WSASocketA = Fiddle::Function.new(
  lib['WSASocketA'],
  [
    Fiddle::TYPE_INT,  # af : INT
    Fiddle::TYPE_INT,  # type : INT
    Fiddle::TYPE_INT,  # protocol : INT
    Fiddle::TYPE_VOIDP,  # lpProtocolInfo : WSAPROTOCOL_INFOA* optional
    -Fiddle::TYPE_INT,  # g : DWORD
    -Fiddle::TYPE_INT,  # dwFlags : DWORD
  ],
  Fiddle::TYPE_UINTPTR_T)

#[link(name = "ws2_32")]
extern "system" {
    fn WSASocketA(
        af: i32,  // INT
        type: i32,  // INT
        protocol: i32,  // INT
        lpProtocolInfo: *mut WSAPROTOCOL_INFOA,  // WSAPROTOCOL_INFOA* optional
        g: u32,  // DWORD
        dwFlags: u32  // DWORD
    ) -> usize;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("WS2_32.dll", CharSet = CharSet.Ansi, SetLastError = true)]
public static extern UIntPtr WSASocketA(int af, int type, int protocol, IntPtr lpProtocolInfo, uint g, uint dwFlags);
"@
$api = Add-Type -MemberDefinition $sig -Name 'WS2_32_WSASocketA' -Namespace Win32 -PassThru
# $api::WSASocketA(af, type, protocol, lpProtocolInfo, g, dwFlags)

#uselib "WS2_32.dll"
#func global WSASocketA "WSASocketA" sptr, sptr, sptr, sptr, sptr, sptr
; WSASocketA af, type, protocol, varptr(lpProtocolInfo), g, dwFlags   ; 戻り値は stat
; af : INT -> "sptr"
; type : INT -> "sptr"
; protocol : INT -> "sptr"
; lpProtocolInfo : WSAPROTOCOL_INFOA* optional -> "sptr"
; g : DWORD -> "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 (
	ws2_32 = windows.NewLazySystemDLL("WS2_32.dll")
	procWSASocketA = ws2_32.NewProc("WSASocketA")
)

// af (INT), type (INT), protocol (INT), lpProtocolInfo (WSAPROTOCOL_INFOA* optional), g (DWORD), dwFlags (DWORD)
r1, _, err := procWSASocketA.Call(
	uintptr(af),
	uintptr(type),
	uintptr(protocol),
	uintptr(lpProtocolInfo),
	uintptr(g),
	uintptr(dwFlags),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // SOCKET

function WSASocketA(
  af: Integer;   // INT
  type: Integer;   // INT
  protocol: Integer;   // INT
  lpProtocolInfo: Pointer;   // WSAPROTOCOL_INFOA* optional
  g: DWORD;   // DWORD
  dwFlags: DWORD   // DWORD
): NativeUInt; stdcall;
  external 'WS2_32.dll' name 'WSASocketA';

result := DllCall("WS2_32\WSASocketA"
    , "Int", af   ; INT
    , "Int", type   ; INT
    , "Int", protocol   ; INT
    , "Ptr", lpProtocolInfo   ; WSAPROTOCOL_INFOA* optional
    , "UInt", g   ; DWORD
    , "UInt", dwFlags   ; DWORD
    , "UPtr")   ; return: SOCKET

●WSASocketA(af, type, protocol, lpProtocolInfo, g, dwFlags) = DLL("WS2_32.dll", "int WSASocketA(int, int, int, void*, dword, dword)")
# 呼び出し: WSASocketA(af, type, protocol, lpProtocolInfo, g, dwFlags)
# af : INT -> "int"
# type : INT -> "int"
# protocol : INT -> "int"
# lpProtocolInfo : WSAPROTOCOL_INFOA* optional -> "void*"
# g : DWORD -> "dword"
# 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 "ws2_32" fn WSASocketA(
    af: i32, // INT
    type: i32, // INT
    protocol: i32, // INT
    lpProtocolInfo: [*c]WSAPROTOCOL_INFOA, // WSAPROTOCOL_INFOA* optional
    g: u32, // DWORD
    dwFlags: u32 // DWORD
) callconv(std.os.windows.WINAPI) usize;

proc WSASocketA(
    af: int32,  # INT
    `type`: int32,  # INT
    protocol: int32,  # INT
    lpProtocolInfo: ptr WSAPROTOCOL_INFOA,  # WSAPROTOCOL_INFOA* optional
    g: uint32,  # DWORD
    dwFlags: uint32  # DWORD
): uint {.importc: "WSASocketA", stdcall, dynlib: "WS2_32.dll".}

pragma(lib, "ws2_32");
extern(Windows)
size_t WSASocketA(
    int af,   // INT
    int type,   // INT
    int protocol,   // INT
    WSAPROTOCOL_INFOA* lpProtocolInfo,   // WSAPROTOCOL_INFOA* optional
    uint g,   // DWORD
    uint dwFlags   // DWORD
);

ccall((:WSASocketA, "WS2_32.dll"), stdcall, Csize_t,
      (Int32, Int32, Int32, Ptr{WSAPROTOCOL_INFOA}, UInt32, UInt32),
      af, type, protocol, lpProtocolInfo, g, dwFlags)
# af : INT -> Int32
# type : INT -> Int32
# protocol : INT -> Int32
# lpProtocolInfo : WSAPROTOCOL_INFOA* optional -> Ptr{WSAPROTOCOL_INFOA}
# g : DWORD -> UInt32
# dwFlags : DWORD -> UInt32
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
uintptr_t WSASocketA(
    int32_t af,
    int32_t type,
    int32_t protocol,
    void* lpProtocolInfo,
    uint32_t g,
    uint32_t dwFlags);
]]
local ws2_32 = ffi.load("ws2_32")
-- ws2_32.WSASocketA(af, type, protocol, lpProtocolInfo, g, dwFlags)
-- af : INT
-- type : INT
-- protocol : INT
-- lpProtocolInfo : WSAPROTOCOL_INFOA* optional
-- g : DWORD
-- 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('WS2_32.dll');
const WSASocketA = lib.func('__stdcall', 'WSASocketA', 'uintptr_t', ['int32_t', 'int32_t', 'int32_t', 'void *', 'uint32_t', 'uint32_t']);
// WSASocketA(af, type, protocol, lpProtocolInfo, g, dwFlags)
// af : INT -> 'int32_t'
// type : INT -> 'int32_t'
// protocol : INT -> 'int32_t'
// lpProtocolInfo : WSAPROTOCOL_INFOA* optional -> 'void *'
// g : DWORD -> 'uint32_t'
// 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("WS2_32.dll", {
  WSASocketA: { parameters: ["i32", "i32", "i32", "pointer", "u32", "u32"], result: "usize" },
});
// lib.symbols.WSASocketA(af, type, protocol, lpProtocolInfo, g, dwFlags)
// af : INT -> "i32"
// type : INT -> "i32"
// protocol : INT -> "i32"
// lpProtocolInfo : WSAPROTOCOL_INFOA* optional -> "pointer"
// g : DWORD -> "u32"
// dwFlags : DWORD -> "u32"
// 文字列は "buffer"。ANSI(-A) は new TextEncoder() で UTF-8/ANSI バイト列(末尾に \x00)を渡す。
// 値渡し構造体は { struct: [ ...field types... ] } を使用。

<?php
$ffi = FFI::cdef(<<<C
size_t WSASocketA(
    int32_t af,
    int32_t type,
    int32_t protocol,
    void* lpProtocolInfo,
    uint32_t g,
    uint32_t dwFlags);
C, "WS2_32.dll");
// $ffi->WSASocketA(af, type, protocol, lpProtocolInfo, g, dwFlags);
// af : INT
// type : INT
// protocol : INT
// lpProtocolInfo : WSAPROTOCOL_INFOA* optional
// g : DWORD
// 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 Ws2_32 extends StdCallLibrary {
    Ws2_32 INSTANCE = Native.load("ws2_32", Ws2_32.class, W32APIOptions.ASCII_OPTIONS);
    long WSASocketA(
        int af,   // INT
        int type,   // INT
        int protocol,   // INT
        Pointer lpProtocolInfo,   // WSAPROTOCOL_INFOA* optional
        int g,   // DWORD
        int dwFlags   // DWORD
    );
}

@[Link("ws2_32")]
lib LibWS2_32
  fun WSASocketA = WSASocketA(
    af : Int32,   # INT
    type_ : Int32,   # INT
    protocol : Int32,   # INT
    lpProtocolInfo : WSAPROTOCOL_INFOA*,   # WSAPROTOCOL_INFOA* optional
    g : UInt32,   # DWORD
    dwFlags : UInt32   # DWORD
  ) : LibC::SizeT
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 WSASocketANative = UintPtr Function(Int32, Int32, Int32, Pointer<Void>, Uint32, Uint32);
typedef WSASocketADart = int Function(int, int, int, Pointer<Void>, int, int);
final WSASocketA = DynamicLibrary.open('WS2_32.dll')
    .lookupFunction<WSASocketANative, WSASocketADart>('WSASocketA');
// af : INT -> Int32
// type : INT -> Int32
// protocol : INT -> Int32
// lpProtocolInfo : WSAPROTOCOL_INFOA* optional -> Pointer<Void>
// g : DWORD -> Uint32
// dwFlags : DWORD -> Uint32
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function WSASocketA(
  af: Integer;   // INT
  type: Integer;   // INT
  protocol: Integer;   // INT
  lpProtocolInfo: Pointer;   // WSAPROTOCOL_INFOA* optional
  g: DWORD;   // DWORD
  dwFlags: DWORD   // DWORD
): NativeUInt; stdcall;
  external 'WS2_32.dll' name 'WSASocketA';

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

foreign import stdcall safe "WSASocketA"
  c_WSASocketA :: Int32 -> Int32 -> Int32 -> Ptr () -> Word32 -> Word32 -> IO CUIntPtr
-- af : INT -> Int32
-- type : INT -> Int32
-- protocol : INT -> Int32
-- lpProtocolInfo : WSAPROTOCOL_INFOA* optional -> Ptr ()
-- g : DWORD -> Word32
-- 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 wsasocketa =
  foreign "WSASocketA"
    (int32_t @-> int32_t @-> int32_t @-> (ptr void) @-> uint32_t @-> uint32_t @-> returning size_t)
(* af : INT -> int32_t *)
(* type : INT -> int32_t *)
(* protocol : INT -> int32_t *)
(* lpProtocolInfo : WSAPROTOCOL_INFOA* optional -> (ptr void) *)
(* g : DWORD -> uint32_t *)
(* 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 ws2_32 (t "WS2_32.dll"))
(cffi:use-foreign-library ws2_32)

(cffi:defcfun ("WSASocketA" wsasocket-a :convention :stdcall) :uint64
  (af :int32)   ; INT
  (type :int32)   ; INT
  (protocol :int32)   ; INT
  (lp-protocol-info :pointer)   ; WSAPROTOCOL_INFOA* optional
  (g :uint32)   ; DWORD
  (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 $WSASocketA = Win32::API::More->new('WS2_32',
    'WPARAM WSASocketA(int af, int type, int protocol, LPVOID lpProtocolInfo, DWORD g, DWORD dwFlags)');
# my $ret = $WSASocketA->Call($af, $type, $protocol, $lpProtocolInfo, $g, $dwFlags);
# af : INT -> int
# type : INT -> int
# protocol : INT -> int
# lpProtocolInfo : WSAPROTOCOL_INFOA* optional -> LPVOID
# g : DWORD -> DWORD
# 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。