ホーム › Networking.WinSock › GetAddrInfoExA

GetAddrInfoExA

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ANSI (-A)呼出規約winapi対応OSWindows Vista 以降

シグネチャ

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

INT GetAddrInfoExA(
    LPCSTR pName,   // optional
    LPCSTR pServiceName,   // optional
    DWORD dwNameSpace,
    GUID* lpNspId,   // optional
    const ADDRINFOEXA* hints,   // optional
    ADDRINFOEXA** ppResult,
    TIMEVAL* timeout,   // optional
    OVERLAPPED* lpOverlapped,   // optional
    LPLOOKUPSERVICE_COMPLETION_ROUTINE lpCompletionRoutine,   // optional
    HANDLE* lpNameHandle   // optional
);

パラメーター

名前	型	方向
pName	LPCSTR	inoptional
pServiceName	LPCSTR	inoptional
dwNameSpace	DWORD	in
lpNspId	GUID*	inoptional
hints	ADDRINFOEXA*	inoptional
ppResult	ADDRINFOEXA**	out
timeout	TIMEVAL*	inoptional
lpOverlapped	OVERLAPPED*	inoptional
lpCompletionRoutine	LPLOOKUPSERVICE_COMPLETION_ROUTINE	inoptional
lpNameHandle	HANDLE*	outoptional

戻り値の型: INT

各言語での呼び出し定義

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

INT GetAddrInfoExA(
    LPCSTR pName,   // optional
    LPCSTR pServiceName,   // optional
    DWORD dwNameSpace,
    GUID* lpNspId,   // optional
    const ADDRINFOEXA* hints,   // optional
    ADDRINFOEXA** ppResult,
    TIMEVAL* timeout,   // optional
    OVERLAPPED* lpOverlapped,   // optional
    LPLOOKUPSERVICE_COMPLETION_ROUTINE lpCompletionRoutine,   // optional
    HANDLE* lpNameHandle   // optional
);

[DllImport("WS2_32.dll", CharSet = CharSet.Ansi, ExactSpelling = true)]
static extern int GetAddrInfoExA(
    [MarshalAs(UnmanagedType.LPStr)] string pName,   // LPCSTR optional
    [MarshalAs(UnmanagedType.LPStr)] string pServiceName,   // LPCSTR optional
    uint dwNameSpace,   // DWORD
    IntPtr lpNspId,   // GUID* optional
    IntPtr hints,   // ADDRINFOEXA* optional
    IntPtr ppResult,   // ADDRINFOEXA** out
    IntPtr timeout,   // TIMEVAL* optional
    IntPtr lpOverlapped,   // OVERLAPPED* optional
    IntPtr lpCompletionRoutine,   // LPLOOKUPSERVICE_COMPLETION_ROUTINE optional
    IntPtr lpNameHandle   // HANDLE* optional, out
);

<DllImport("WS2_32.dll", CharSet:=CharSet.Ansi, ExactSpelling:=True)>
Public Shared Function GetAddrInfoExA(
    <MarshalAs(UnmanagedType.LPStr)> pName As String,   ' LPCSTR optional
    <MarshalAs(UnmanagedType.LPStr)> pServiceName As String,   ' LPCSTR optional
    dwNameSpace As UInteger,   ' DWORD
    lpNspId As IntPtr,   ' GUID* optional
    hints As IntPtr,   ' ADDRINFOEXA* optional
    ppResult As IntPtr,   ' ADDRINFOEXA** out
    timeout As IntPtr,   ' TIMEVAL* optional
    lpOverlapped As IntPtr,   ' OVERLAPPED* optional
    lpCompletionRoutine As IntPtr,   ' LPLOOKUPSERVICE_COMPLETION_ROUTINE optional
    lpNameHandle As IntPtr   ' HANDLE* optional, out
) As Integer
End Function

' pName : LPCSTR optional
' pServiceName : LPCSTR optional
' dwNameSpace : DWORD
' lpNspId : GUID* optional
' hints : ADDRINFOEXA* optional
' ppResult : ADDRINFOEXA** out
' timeout : TIMEVAL* optional
' lpOverlapped : OVERLAPPED* optional
' lpCompletionRoutine : LPLOOKUPSERVICE_COMPLETION_ROUTINE optional
' lpNameHandle : HANDLE* optional, out
Declare PtrSafe Function GetAddrInfoExA Lib "ws2_32" ( _
    ByVal pName As String, _
    ByVal pServiceName As String, _
    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 lpNameHandle 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

GetAddrInfoExA = ctypes.windll.ws2_32.GetAddrInfoExA
GetAddrInfoExA.restype = ctypes.c_int
GetAddrInfoExA.argtypes = [
    wintypes.LPCSTR,  # pName : LPCSTR optional
    wintypes.LPCSTR,  # pServiceName : LPCSTR optional
    wintypes.DWORD,  # dwNameSpace : DWORD
    ctypes.c_void_p,  # lpNspId : GUID* optional
    ctypes.c_void_p,  # hints : ADDRINFOEXA* optional
    ctypes.c_void_p,  # ppResult : ADDRINFOEXA** 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,  # lpNameHandle : HANDLE* optional, out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('WS2_32.dll')
GetAddrInfoExA = Fiddle::Function.new(
  lib['GetAddrInfoExA'],
  [
    Fiddle::TYPE_VOIDP,  # pName : LPCSTR optional
    Fiddle::TYPE_VOIDP,  # pServiceName : LPCSTR optional
    -Fiddle::TYPE_INT,  # dwNameSpace : DWORD
    Fiddle::TYPE_VOIDP,  # lpNspId : GUID* optional
    Fiddle::TYPE_VOIDP,  # hints : ADDRINFOEXA* optional
    Fiddle::TYPE_VOIDP,  # ppResult : ADDRINFOEXA** out
    Fiddle::TYPE_VOIDP,  # timeout : TIMEVAL* optional
    Fiddle::TYPE_VOIDP,  # lpOverlapped : OVERLAPPED* optional
    Fiddle::TYPE_VOIDP,  # lpCompletionRoutine : LPLOOKUPSERVICE_COMPLETION_ROUTINE optional
    Fiddle::TYPE_VOIDP,  # lpNameHandle : HANDLE* optional, out
  ],
  Fiddle::TYPE_INT)

#[link(name = "ws2_32")]
extern "system" {
    fn GetAddrInfoExA(
        pName: *const u8,  // LPCSTR optional
        pServiceName: *const u8,  // LPCSTR optional
        dwNameSpace: u32,  // DWORD
        lpNspId: *mut GUID,  // GUID* optional
        hints: *const ADDRINFOEXA,  // ADDRINFOEXA* optional
        ppResult: *mut *mut ADDRINFOEXA,  // ADDRINFOEXA** out
        timeout: *mut TIMEVAL,  // TIMEVAL* optional
        lpOverlapped: *mut OVERLAPPED,  // OVERLAPPED* optional
        lpCompletionRoutine: *const core::ffi::c_void,  // LPLOOKUPSERVICE_COMPLETION_ROUTINE optional
        lpNameHandle: *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.Ansi)]
public static extern int GetAddrInfoExA([MarshalAs(UnmanagedType.LPStr)] string pName, [MarshalAs(UnmanagedType.LPStr)] string pServiceName, uint dwNameSpace, IntPtr lpNspId, IntPtr hints, IntPtr ppResult, IntPtr timeout, IntPtr lpOverlapped, IntPtr lpCompletionRoutine, IntPtr lpNameHandle);
"@
$api = Add-Type -MemberDefinition $sig -Name 'WS2_32_GetAddrInfoExA' -Namespace Win32 -PassThru
# $api::GetAddrInfoExA(pName, pServiceName, dwNameSpace, lpNspId, hints, ppResult, timeout, lpOverlapped, lpCompletionRoutine, lpNameHandle)

#uselib "WS2_32.dll"
#func global GetAddrInfoExA "GetAddrInfoExA" sptr, sptr, sptr, sptr, sptr, sptr, sptr, sptr, sptr, sptr
; GetAddrInfoExA pName, pServiceName, dwNameSpace, varptr(lpNspId), varptr(hints), varptr(ppResult), varptr(timeout), varptr(lpOverlapped), lpCompletionRoutine, lpNameHandle   ; 戻り値は stat
; pName : LPCSTR optional -> "sptr"
; pServiceName : LPCSTR optional -> "sptr"
; dwNameSpace : DWORD -> "sptr"
; lpNspId : GUID* optional -> "sptr"
; hints : ADDRINFOEXA* optional -> "sptr"
; ppResult : ADDRINFOEXA** out -> "sptr"
; timeout : TIMEVAL* optional -> "sptr"
; lpOverlapped : OVERLAPPED* optional -> "sptr"
; lpCompletionRoutine : LPLOOKUPSERVICE_COMPLETION_ROUTINE optional -> "sptr"
; lpNameHandle : HANDLE* optional, 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。

出力引数:

#uselib "WS2_32.dll"
#cfunc global GetAddrInfoExA "GetAddrInfoExA" str, str, int, var, var, var, var, var, sptr, sptr
; res = GetAddrInfoExA(pName, pServiceName, dwNameSpace, lpNspId, hints, ppResult, timeout, lpOverlapped, lpCompletionRoutine, lpNameHandle)
; pName : LPCSTR optional -> "str"
; pServiceName : LPCSTR optional -> "str"
; dwNameSpace : DWORD -> "int"
; lpNspId : GUID* optional -> "var"
; hints : ADDRINFOEXA* optional -> "var"
; ppResult : ADDRINFOEXA** out -> "var"
; timeout : TIMEVAL* optional -> "var"
; lpOverlapped : OVERLAPPED* optional -> "var"
; lpCompletionRoutine : LPLOOKUPSERVICE_COMPLETION_ROUTINE optional -> "sptr"
; lpNameHandle : 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 GetAddrInfoExA "GetAddrInfoExA" str, str, int, sptr, sptr, sptr, sptr, sptr, sptr, sptr
; res = GetAddrInfoExA(pName, pServiceName, dwNameSpace, varptr(lpNspId), varptr(hints), varptr(ppResult), varptr(timeout), varptr(lpOverlapped), lpCompletionRoutine, lpNameHandle)
; pName : LPCSTR optional -> "str"
; pServiceName : LPCSTR optional -> "str"
; dwNameSpace : DWORD -> "int"
; lpNspId : GUID* optional -> "sptr"
; hints : ADDRINFOEXA* optional -> "sptr"
; ppResult : ADDRINFOEXA** out -> "sptr"
; timeout : TIMEVAL* optional -> "sptr"
; lpOverlapped : OVERLAPPED* optional -> "sptr"
; lpCompletionRoutine : LPLOOKUPSERVICE_COMPLETION_ROUTINE optional -> "sptr"
; lpNameHandle : 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 GetAddrInfoExA(LPCSTR pName, LPCSTR pServiceName, DWORD dwNameSpace, GUID* lpNspId, ADDRINFOEXA* hints, ADDRINFOEXA** ppResult, TIMEVAL* timeout, OVERLAPPED* lpOverlapped, LPLOOKUPSERVICE_COMPLETION_ROUTINE lpCompletionRoutine, HANDLE* lpNameHandle)
#uselib "WS2_32.dll"
#cfunc global GetAddrInfoExA "GetAddrInfoExA" str, str, int, var, var, var, var, var, intptr, intptr
; res = GetAddrInfoExA(pName, pServiceName, dwNameSpace, lpNspId, hints, ppResult, timeout, lpOverlapped, lpCompletionRoutine, lpNameHandle)
; pName : LPCSTR optional -> "str"
; pServiceName : LPCSTR optional -> "str"
; dwNameSpace : DWORD -> "int"
; lpNspId : GUID* optional -> "var"
; hints : ADDRINFOEXA* optional -> "var"
; ppResult : ADDRINFOEXA** out -> "var"
; timeout : TIMEVAL* optional -> "var"
; lpOverlapped : OVERLAPPED* optional -> "var"
; lpCompletionRoutine : LPLOOKUPSERVICE_COMPLETION_ROUTINE optional -> "intptr"
; lpNameHandle : 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 GetAddrInfoExA(LPCSTR pName, LPCSTR pServiceName, DWORD dwNameSpace, GUID* lpNspId, ADDRINFOEXA* hints, ADDRINFOEXA** ppResult, TIMEVAL* timeout, OVERLAPPED* lpOverlapped, LPLOOKUPSERVICE_COMPLETION_ROUTINE lpCompletionRoutine, HANDLE* lpNameHandle)
#uselib "WS2_32.dll"
#cfunc global GetAddrInfoExA "GetAddrInfoExA" str, str, int, intptr, intptr, intptr, intptr, intptr, intptr, intptr
; res = GetAddrInfoExA(pName, pServiceName, dwNameSpace, varptr(lpNspId), varptr(hints), varptr(ppResult), varptr(timeout), varptr(lpOverlapped), lpCompletionRoutine, lpNameHandle)
; pName : LPCSTR optional -> "str"
; pServiceName : LPCSTR optional -> "str"
; dwNameSpace : DWORD -> "int"
; lpNspId : GUID* optional -> "intptr"
; hints : ADDRINFOEXA* optional -> "intptr"
; ppResult : ADDRINFOEXA** out -> "intptr"
; timeout : TIMEVAL* optional -> "intptr"
; lpOverlapped : OVERLAPPED* optional -> "intptr"
; lpCompletionRoutine : LPLOOKUPSERVICE_COMPLETION_ROUTINE optional -> "intptr"
; lpNameHandle : 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")
	procGetAddrInfoExA = ws2_32.NewProc("GetAddrInfoExA")
)

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

function GetAddrInfoExA(
  pName: PAnsiChar;   // LPCSTR optional
  pServiceName: PAnsiChar;   // LPCSTR optional
  dwNameSpace: DWORD;   // DWORD
  lpNspId: PGUID;   // GUID* optional
  hints: Pointer;   // ADDRINFOEXA* optional
  ppResult: Pointer;   // ADDRINFOEXA** out
  timeout: Pointer;   // TIMEVAL* optional
  lpOverlapped: Pointer;   // OVERLAPPED* optional
  lpCompletionRoutine: Pointer;   // LPLOOKUPSERVICE_COMPLETION_ROUTINE optional
  lpNameHandle: Pointer   // HANDLE* optional, out
): Integer; stdcall;
  external 'WS2_32.dll' name 'GetAddrInfoExA';

result := DllCall("WS2_32\GetAddrInfoExA"
    , "AStr", pName   ; LPCSTR optional
    , "AStr", pServiceName   ; LPCSTR optional
    , "UInt", dwNameSpace   ; DWORD
    , "Ptr", lpNspId   ; GUID* optional
    , "Ptr", hints   ; ADDRINFOEXA* optional
    , "Ptr", ppResult   ; ADDRINFOEXA** out
    , "Ptr", timeout   ; TIMEVAL* optional
    , "Ptr", lpOverlapped   ; OVERLAPPED* optional
    , "Ptr", lpCompletionRoutine   ; LPLOOKUPSERVICE_COMPLETION_ROUTINE optional
    , "Ptr", lpNameHandle   ; HANDLE* optional, out
    , "Int")   ; return: INT

●GetAddrInfoExA(pName, pServiceName, dwNameSpace, lpNspId, hints, ppResult, timeout, lpOverlapped, lpCompletionRoutine, lpNameHandle) = DLL("WS2_32.dll", "int GetAddrInfoExA(char*, char*, dword, void*, void*, void*, void*, void*, void*, void*)")
# 呼び出し: GetAddrInfoExA(pName, pServiceName, dwNameSpace, lpNspId, hints, ppResult, timeout, lpOverlapped, lpCompletionRoutine, lpNameHandle)
# pName : LPCSTR optional -> "char*"
# pServiceName : LPCSTR optional -> "char*"
# dwNameSpace : DWORD -> "dword"
# lpNspId : GUID* optional -> "void*"
# hints : ADDRINFOEXA* optional -> "void*"
# ppResult : ADDRINFOEXA** out -> "void*"
# timeout : TIMEVAL* optional -> "void*"
# lpOverlapped : OVERLAPPED* optional -> "void*"
# lpCompletionRoutine : LPLOOKUPSERVICE_COMPLETION_ROUTINE optional -> "void*"
# lpNameHandle : 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)。