ホーム › Networking.WinSock › GetAddrInfoExW

GetAddrInfoExW

関数

名前を非同期や拡張オプション付きでアドレス解決する。

DLLWS2_32.dll文字セットUnicode (-W)呼出規約winapi対応OSWindows Vista 以降

シグネチャ

// WS2_32.dll  (Unicode / -W)
#include <windows.h>

INT GetAddrInfoExW(
    LPCWSTR pName,   // optional
    LPCWSTR pServiceName,   // optional
    DWORD dwNameSpace,
    GUID* lpNspId,   // optional
    const ADDRINFOEXW* hints,   // optional
    ADDRINFOEXW** ppResult,
    TIMEVAL* timeout,   // optional
    OVERLAPPED* lpOverlapped,   // optional
    LPLOOKUPSERVICE_COMPLETION_ROUTINE lpCompletionRoutine,   // optional
    HANDLE* lpHandle   // optional
);

パラメーター

名前	型	方向
pName	LPCWSTR	inoptional
pServiceName	LPCWSTR	inoptional
dwNameSpace	DWORD	in
lpNspId	GUID*	inoptional
hints	ADDRINFOEXW*	inoptional
ppResult	ADDRINFOEXW**	out
timeout	TIMEVAL*	inoptional
lpOverlapped	OVERLAPPED*	inoptional
lpCompletionRoutine	LPLOOKUPSERVICE_COMPLETION_ROUTINE	inoptional
lpHandle	HANDLE*	outoptional

戻り値の型: INT

各言語での呼び出し定義

// WS2_32.dll  (Unicode / -W)
#include <windows.h>

INT GetAddrInfoExW(
    LPCWSTR pName,   // optional
    LPCWSTR pServiceName,   // optional
    DWORD dwNameSpace,
    GUID* lpNspId,   // optional
    const ADDRINFOEXW* hints,   // optional
    ADDRINFOEXW** ppResult,
    TIMEVAL* timeout,   // optional
    OVERLAPPED* lpOverlapped,   // optional
    LPLOOKUPSERVICE_COMPLETION_ROUTINE lpCompletionRoutine,   // optional
    HANDLE* lpHandle   // optional
);

[DllImport("WS2_32.dll", CharSet = CharSet.Unicode, ExactSpelling = true)]
static extern int GetAddrInfoExW(
    [MarshalAs(UnmanagedType.LPWStr)] string pName,   // LPCWSTR optional
    [MarshalAs(UnmanagedType.LPWStr)] string pServiceName,   // LPCWSTR optional
    uint dwNameSpace,   // DWORD
    IntPtr lpNspId,   // GUID* optional
    IntPtr hints,   // ADDRINFOEXW* optional
    IntPtr ppResult,   // ADDRINFOEXW** out
    IntPtr timeout,   // TIMEVAL* optional
    IntPtr lpOverlapped,   // OVERLAPPED* optional
    IntPtr lpCompletionRoutine,   // LPLOOKUPSERVICE_COMPLETION_ROUTINE optional
    IntPtr lpHandle   // HANDLE* optional, out
);

<DllImport("WS2_32.dll", CharSet:=CharSet.Unicode, ExactSpelling:=True)>
Public Shared Function GetAddrInfoExW(
    <MarshalAs(UnmanagedType.LPWStr)> pName As String,   ' LPCWSTR optional
    <MarshalAs(UnmanagedType.LPWStr)> pServiceName As String,   ' LPCWSTR optional
    dwNameSpace As UInteger,   ' DWORD
    lpNspId As IntPtr,   ' GUID* optional
    hints As IntPtr,   ' ADDRINFOEXW* optional
    ppResult As IntPtr,   ' ADDRINFOEXW** out
    timeout As IntPtr,   ' TIMEVAL* optional
    lpOverlapped As IntPtr,   ' OVERLAPPED* optional
    lpCompletionRoutine As IntPtr,   ' LPLOOKUPSERVICE_COMPLETION_ROUTINE optional
    lpHandle As IntPtr   ' HANDLE* optional, out
) As Integer
End Function

' pName : LPCWSTR optional
' pServiceName : LPCWSTR optional
' dwNameSpace : DWORD
' lpNspId : GUID* optional
' hints : ADDRINFOEXW* optional
' ppResult : ADDRINFOEXW** out
' timeout : TIMEVAL* optional
' lpOverlapped : OVERLAPPED* optional
' lpCompletionRoutine : LPLOOKUPSERVICE_COMPLETION_ROUTINE optional
' lpHandle : HANDLE* optional, out
Declare PtrSafe Function GetAddrInfoExW Lib "ws2_32" ( _
    ByVal pName As LongPtr, _
    ByVal pServiceName As LongPtr, _
    ByVal dwNameSpace As Long, _
    ByVal lpNspId As LongPtr, _
    ByVal hints As LongPtr, _
    ByVal ppResult As LongPtr, _
    ByVal timeout As LongPtr, _
    ByVal lpOverlapped As LongPtr, _
    ByVal lpCompletionRoutine As LongPtr, _
    ByVal lpHandle As LongPtr) As Long
' Unicode(W): 文字列は ByVal As LongPtr とし StrPtr(unicodeStr) を渡す
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

GetAddrInfoExW = ctypes.windll.ws2_32.GetAddrInfoExW
GetAddrInfoExW.restype = ctypes.c_int
GetAddrInfoExW.argtypes = [
    wintypes.LPCWSTR,  # pName : LPCWSTR optional
    wintypes.LPCWSTR,  # pServiceName : LPCWSTR optional
    wintypes.DWORD,  # dwNameSpace : DWORD
    ctypes.c_void_p,  # lpNspId : GUID* optional
    ctypes.c_void_p,  # hints : ADDRINFOEXW* optional
    ctypes.c_void_p,  # ppResult : ADDRINFOEXW** out
    ctypes.c_void_p,  # timeout : TIMEVAL* optional
    ctypes.c_void_p,  # lpOverlapped : OVERLAPPED* optional
    ctypes.c_void_p,  # lpCompletionRoutine : LPLOOKUPSERVICE_COMPLETION_ROUTINE optional
    ctypes.c_void_p,  # lpHandle : HANDLE* optional, out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('WS2_32.dll')
GetAddrInfoExW = Fiddle::Function.new(
  lib['GetAddrInfoExW'],
  [
    Fiddle::TYPE_VOIDP,  # pName : LPCWSTR optional
    Fiddle::TYPE_VOIDP,  # pServiceName : LPCWSTR optional
    -Fiddle::TYPE_INT,  # dwNameSpace : DWORD
    Fiddle::TYPE_VOIDP,  # lpNspId : GUID* optional
    Fiddle::TYPE_VOIDP,  # hints : ADDRINFOEXW* optional
    Fiddle::TYPE_VOIDP,  # ppResult : ADDRINFOEXW** out
    Fiddle::TYPE_VOIDP,  # timeout : TIMEVAL* optional
    Fiddle::TYPE_VOIDP,  # lpOverlapped : OVERLAPPED* optional
    Fiddle::TYPE_VOIDP,  # lpCompletionRoutine : LPLOOKUPSERVICE_COMPLETION_ROUTINE optional
    Fiddle::TYPE_VOIDP,  # lpHandle : HANDLE* optional, out
  ],
  Fiddle::TYPE_INT)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"

#[link(name = "ws2_32")]
extern "system" {
    fn GetAddrInfoExW(
        pName: *const u16,  // LPCWSTR optional
        pServiceName: *const u16,  // LPCWSTR optional
        dwNameSpace: u32,  // DWORD
        lpNspId: *mut GUID,  // GUID* optional
        hints: *const ADDRINFOEXW,  // ADDRINFOEXW* optional
        ppResult: *mut *mut ADDRINFOEXW,  // ADDRINFOEXW** out
        timeout: *mut TIMEVAL,  // TIMEVAL* optional
        lpOverlapped: *mut OVERLAPPED,  // OVERLAPPED* optional
        lpCompletionRoutine: *const core::ffi::c_void,  // LPLOOKUPSERVICE_COMPLETION_ROUTINE optional
        lpHandle: *mut *mut core::ffi::c_void  // HANDLE* optional, out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("WS2_32.dll", CharSet = CharSet.Unicode)]
public static extern int GetAddrInfoExW([MarshalAs(UnmanagedType.LPWStr)] string pName, [MarshalAs(UnmanagedType.LPWStr)] string pServiceName, uint dwNameSpace, IntPtr lpNspId, IntPtr hints, IntPtr ppResult, IntPtr timeout, IntPtr lpOverlapped, IntPtr lpCompletionRoutine, IntPtr lpHandle);
"@
$api = Add-Type -MemberDefinition $sig -Name 'WS2_32_GetAddrInfoExW' -Namespace Win32 -PassThru
# $api::GetAddrInfoExW(pName, pServiceName, dwNameSpace, lpNspId, hints, ppResult, timeout, lpOverlapped, lpCompletionRoutine, lpHandle)

#uselib "WS2_32.dll"
#func global GetAddrInfoExW "GetAddrInfoExW" wptr, wptr, wptr, wptr, wptr, wptr, wptr, wptr, wptr, wptr
; GetAddrInfoExW pName, pServiceName, dwNameSpace, varptr(lpNspId), varptr(hints), varptr(ppResult), varptr(timeout), varptr(lpOverlapped), lpCompletionRoutine, lpHandle   ; 戻り値は stat
; pName : LPCWSTR optional -> "wptr"
; pServiceName : LPCWSTR optional -> "wptr"
; dwNameSpace : DWORD -> "wptr"
; lpNspId : GUID* optional -> "wptr"
; hints : ADDRINFOEXW* optional -> "wptr"
; ppResult : ADDRINFOEXW** out -> "wptr"
; timeout : TIMEVAL* optional -> "wptr"
; lpOverlapped : OVERLAPPED* optional -> "wptr"
; lpCompletionRoutine : LPLOOKUPSERVICE_COMPLETION_ROUTINE optional -> "wptr"
; lpHandle : HANDLE* optional, out -> "wptr"
; ※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。

出力引数:

#uselib "WS2_32.dll"
#cfunc global GetAddrInfoExW "GetAddrInfoExW" wstr, wstr, int, var, var, var, var, var, sptr, sptr
; res = GetAddrInfoExW(pName, pServiceName, dwNameSpace, lpNspId, hints, ppResult, timeout, lpOverlapped, lpCompletionRoutine, lpHandle)
; pName : LPCWSTR optional -> "wstr"
; pServiceName : LPCWSTR optional -> "wstr"
; dwNameSpace : DWORD -> "int"
; lpNspId : GUID* optional -> "var"
; hints : ADDRINFOEXW* optional -> "var"
; ppResult : ADDRINFOEXW** out -> "var"
; timeout : TIMEVAL* optional -> "var"
; lpOverlapped : OVERLAPPED* optional -> "var"
; lpCompletionRoutine : LPLOOKUPSERVICE_COMPLETION_ROUTINE optional -> "sptr"
; lpHandle : HANDLE* optional, out -> "sptr"
; ※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。#uselib "WS2_32.dll"
#cfunc global GetAddrInfoExW "GetAddrInfoExW" wstr, wstr, int, sptr, sptr, sptr, sptr, sptr, sptr, sptr
; res = GetAddrInfoExW(pName, pServiceName, dwNameSpace, varptr(lpNspId), varptr(hints), varptr(ppResult), varptr(timeout), varptr(lpOverlapped), lpCompletionRoutine, lpHandle)
; pName : LPCWSTR optional -> "wstr"
; pServiceName : LPCWSTR optional -> "wstr"
; dwNameSpace : DWORD -> "int"
; lpNspId : GUID* optional -> "sptr"
; hints : ADDRINFOEXW* optional -> "sptr"
; ppResult : ADDRINFOEXW** out -> "sptr"
; timeout : TIMEVAL* optional -> "sptr"
; lpOverlapped : OVERLAPPED* optional -> "sptr"
; lpCompletionRoutine : LPLOOKUPSERVICE_COMPLETION_ROUTINE optional -> "sptr"
; lpHandle : HANDLE* optional, out -> "sptr"
; ※出力/バッファ引数はポインタ方式(token=sptr / 呼び出しは varptr(変数))。

出力引数:

; INT GetAddrInfoExW(LPCWSTR pName, LPCWSTR pServiceName, DWORD dwNameSpace, GUID* lpNspId, ADDRINFOEXW* hints, ADDRINFOEXW** ppResult, TIMEVAL* timeout, OVERLAPPED* lpOverlapped, LPLOOKUPSERVICE_COMPLETION_ROUTINE lpCompletionRoutine, HANDLE* lpHandle)
#uselib "WS2_32.dll"
#cfunc global GetAddrInfoExW "GetAddrInfoExW" wstr, wstr, int, var, var, var, var, var, intptr, intptr
; res = GetAddrInfoExW(pName, pServiceName, dwNameSpace, lpNspId, hints, ppResult, timeout, lpOverlapped, lpCompletionRoutine, lpHandle)
; pName : LPCWSTR optional -> "wstr"
; pServiceName : LPCWSTR optional -> "wstr"
; dwNameSpace : DWORD -> "int"
; lpNspId : GUID* optional -> "var"
; hints : ADDRINFOEXW* optional -> "var"
; ppResult : ADDRINFOEXW** out -> "var"
; timeout : TIMEVAL* optional -> "var"
; lpOverlapped : OVERLAPPED* optional -> "var"
; lpCompletionRoutine : LPLOOKUPSERVICE_COMPLETION_ROUTINE optional -> "intptr"
; lpHandle : HANDLE* optional, out -> "intptr"
; ※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。; INT GetAddrInfoExW(LPCWSTR pName, LPCWSTR pServiceName, DWORD dwNameSpace, GUID* lpNspId, ADDRINFOEXW* hints, ADDRINFOEXW** ppResult, TIMEVAL* timeout, OVERLAPPED* lpOverlapped, LPLOOKUPSERVICE_COMPLETION_ROUTINE lpCompletionRoutine, HANDLE* lpHandle)
#uselib "WS2_32.dll"
#cfunc global GetAddrInfoExW "GetAddrInfoExW" wstr, wstr, int, intptr, intptr, intptr, intptr, intptr, intptr, intptr
; res = GetAddrInfoExW(pName, pServiceName, dwNameSpace, varptr(lpNspId), varptr(hints), varptr(ppResult), varptr(timeout), varptr(lpOverlapped), lpCompletionRoutine, lpHandle)
; pName : LPCWSTR optional -> "wstr"
; pServiceName : LPCWSTR optional -> "wstr"
; dwNameSpace : DWORD -> "int"
; lpNspId : GUID* optional -> "intptr"
; hints : ADDRINFOEXW* optional -> "intptr"
; ppResult : ADDRINFOEXW** out -> "intptr"
; timeout : TIMEVAL* optional -> "intptr"
; lpOverlapped : OVERLAPPED* optional -> "intptr"
; lpCompletionRoutine : LPLOOKUPSERVICE_COMPLETION_ROUTINE optional -> "intptr"
; lpHandle : HANDLE* optional, out -> "intptr"
; ※出力/バッファ引数はポインタ方式(token=intptr / 呼び出しは varptr(変数))。

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

var (
	ws2_32 = windows.NewLazySystemDLL("WS2_32.dll")
	procGetAddrInfoExW = ws2_32.NewProc("GetAddrInfoExW")
)

// pName (LPCWSTR optional), pServiceName (LPCWSTR optional), dwNameSpace (DWORD), lpNspId (GUID* optional), hints (ADDRINFOEXW* optional), ppResult (ADDRINFOEXW** out), timeout (TIMEVAL* optional), lpOverlapped (OVERLAPPED* optional), lpCompletionRoutine (LPLOOKUPSERVICE_COMPLETION_ROUTINE optional), lpHandle (HANDLE* optional, out)
r1, _, err := procGetAddrInfoExW.Call(
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(pName))),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(pServiceName))),
	uintptr(dwNameSpace),
	uintptr(lpNspId),
	uintptr(hints),
	uintptr(ppResult),
	uintptr(timeout),
	uintptr(lpOverlapped),
	uintptr(lpCompletionRoutine),
	uintptr(lpHandle),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // INT

function GetAddrInfoExW(
  pName: PWideChar;   // LPCWSTR optional
  pServiceName: PWideChar;   // LPCWSTR optional
  dwNameSpace: DWORD;   // DWORD
  lpNspId: PGUID;   // GUID* optional
  hints: Pointer;   // ADDRINFOEXW* optional
  ppResult: Pointer;   // ADDRINFOEXW** out
  timeout: Pointer;   // TIMEVAL* optional
  lpOverlapped: Pointer;   // OVERLAPPED* optional
  lpCompletionRoutine: Pointer;   // LPLOOKUPSERVICE_COMPLETION_ROUTINE optional
  lpHandle: Pointer   // HANDLE* optional, out
): Integer; stdcall;
  external 'WS2_32.dll' name 'GetAddrInfoExW';

result := DllCall("WS2_32\GetAddrInfoExW"
    , "WStr", pName   ; LPCWSTR optional
    , "WStr", pServiceName   ; LPCWSTR optional
    , "UInt", dwNameSpace   ; DWORD
    , "Ptr", lpNspId   ; GUID* optional
    , "Ptr", hints   ; ADDRINFOEXW* optional
    , "Ptr", ppResult   ; ADDRINFOEXW** out
    , "Ptr", timeout   ; TIMEVAL* optional
    , "Ptr", lpOverlapped   ; OVERLAPPED* optional
    , "Ptr", lpCompletionRoutine   ; LPLOOKUPSERVICE_COMPLETION_ROUTINE optional
    , "Ptr", lpHandle   ; HANDLE* optional, out
    , "Int")   ; return: INT

●GetAddrInfoExW(pName, pServiceName, dwNameSpace, lpNspId, hints, ppResult, timeout, lpOverlapped, lpCompletionRoutine, lpHandle) = DLL("WS2_32.dll", "int GetAddrInfoExW(char*, char*, dword, void*, void*, void*, void*, void*, void*, void*)")
# 呼び出し: GetAddrInfoExW(pName, pServiceName, dwNameSpace, lpNspId, hints, ppResult, timeout, lpOverlapped, lpCompletionRoutine, lpHandle)
# pName : LPCWSTR optional -> "char*"
# pServiceName : LPCWSTR optional -> "char*"
# dwNameSpace : DWORD -> "dword"
# lpNspId : GUID* optional -> "void*"
# hints : ADDRINFOEXW* optional -> "void*"
# ppResult : ADDRINFOEXW** out -> "void*"
# timeout : TIMEVAL* optional -> "void*"
# lpOverlapped : OVERLAPPED* optional -> "void*"
# lpCompletionRoutine : LPLOOKUPSERVICE_COMPLETION_ROUTINE optional -> "void*"
# lpHandle : HANDLE* optional, 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)。
# ※-W(Unicode)関数。なでしこ1はANSIのため -A 版の利用を推奨。