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CertFindRDNAttr

関数

証明書名情報から指定OIDのRDN属性を検索する。

DLLCRYPT32.dll呼出規約winapi対応OSWindows XP 以降

シグネチャ

// CRYPT32.dll
#include <windows.h>

CERT_RDN_ATTR* CertFindRDNAttr(
    LPCSTR pszObjId,
    CERT_NAME_INFO* pName
);

パラメーター

名前	型	方向
pszObjId	LPCSTR	in
pName	CERT_NAME_INFO*	in

戻り値の型: CERT_RDN_ATTR*

各言語での呼び出し定義

// CRYPT32.dll
#include <windows.h>

CERT_RDN_ATTR* CertFindRDNAttr(
    LPCSTR pszObjId,
    CERT_NAME_INFO* pName
);

[DllImport("CRYPT32.dll", ExactSpelling = true)]
static extern IntPtr CertFindRDNAttr(
    [MarshalAs(UnmanagedType.LPStr)] string pszObjId,   // LPCSTR
    IntPtr pName   // CERT_NAME_INFO*
);

<DllImport("CRYPT32.dll", ExactSpelling:=True)>
Public Shared Function CertFindRDNAttr(
    <MarshalAs(UnmanagedType.LPStr)> pszObjId As String,   ' LPCSTR
    pName As IntPtr   ' CERT_NAME_INFO*
) As IntPtr
End Function

' pszObjId : LPCSTR
' pName : CERT_NAME_INFO*
Declare PtrSafe Function CertFindRDNAttr Lib "crypt32" ( _
    ByVal pszObjId As String, _
    ByVal pName As LongPtr) As LongPtr
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

CertFindRDNAttr = ctypes.windll.crypt32.CertFindRDNAttr
CertFindRDNAttr.restype = ctypes.c_void_p
CertFindRDNAttr.argtypes = [
    wintypes.LPCSTR,  # pszObjId : LPCSTR
    ctypes.c_void_p,  # pName : CERT_NAME_INFO*
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('CRYPT32.dll')
CertFindRDNAttr = Fiddle::Function.new(
  lib['CertFindRDNAttr'],
  [
    Fiddle::TYPE_VOIDP,  # pszObjId : LPCSTR
    Fiddle::TYPE_VOIDP,  # pName : CERT_NAME_INFO*
  ],
  Fiddle::TYPE_VOIDP)

#[link(name = "crypt32")]
extern "system" {
    fn CertFindRDNAttr(
        pszObjId: *const u8,  // LPCSTR
        pName: *mut CERT_NAME_INFO  // CERT_NAME_INFO*
    ) -> *mut CERT_RDN_ATTR;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("CRYPT32.dll")]
public static extern IntPtr CertFindRDNAttr([MarshalAs(UnmanagedType.LPStr)] string pszObjId, IntPtr pName);
"@
$api = Add-Type -MemberDefinition $sig -Name 'CRYPT32_CertFindRDNAttr' -Namespace Win32 -PassThru
# $api::CertFindRDNAttr(pszObjId, pName)

#uselib "CRYPT32.dll"
#func global CertFindRDNAttr "CertFindRDNAttr" sptr, sptr
; CertFindRDNAttr pszObjId, varptr(pName)   ; 戻り値は stat
; pszObjId : LPCSTR -> "sptr"
; pName : CERT_NAME_INFO* -> "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 "CRYPT32.dll"
#cfunc global CertFindRDNAttr "CertFindRDNAttr" str, var
; res = CertFindRDNAttr(pszObjId, pName)
; pszObjId : LPCSTR -> "str"
; pName : CERT_NAME_INFO* -> "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。#uselib "CRYPT32.dll"
#cfunc global CertFindRDNAttr "CertFindRDNAttr" str, sptr
; res = CertFindRDNAttr(pszObjId, varptr(pName))
; pszObjId : LPCSTR -> "str"
; pName : CERT_NAME_INFO* -> "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:

; CERT_RDN_ATTR* CertFindRDNAttr(LPCSTR pszObjId, CERT_NAME_INFO* pName)
#uselib "CRYPT32.dll"
#cfunc global CertFindRDNAttr "CertFindRDNAttr" str, var
; res = CertFindRDNAttr(pszObjId, pName)
; pszObjId : LPCSTR -> "str"
; pName : CERT_NAME_INFO* -> "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。; CERT_RDN_ATTR* CertFindRDNAttr(LPCSTR pszObjId, CERT_NAME_INFO* pName)
#uselib "CRYPT32.dll"
#cfunc global CertFindRDNAttr "CertFindRDNAttr" str, intptr
; res = CertFindRDNAttr(pszObjId, varptr(pName))
; pszObjId : LPCSTR -> "str"
; pName : CERT_NAME_INFO* -> "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 (
	crypt32 = windows.NewLazySystemDLL("CRYPT32.dll")
	procCertFindRDNAttr = crypt32.NewProc("CertFindRDNAttr")
)

// pszObjId (LPCSTR), pName (CERT_NAME_INFO*)
r1, _, err := procCertFindRDNAttr.Call(
	uintptr(unsafe.Pointer(windows.BytePtrFromString(pszObjId))),
	uintptr(pName),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // CERT_RDN_ATTR*

function CertFindRDNAttr(
  pszObjId: PAnsiChar;   // LPCSTR
  pName: Pointer   // CERT_NAME_INFO*
): Pointer; stdcall;
  external 'CRYPT32.dll' name 'CertFindRDNAttr';

result := DllCall("CRYPT32\CertFindRDNAttr"
    , "AStr", pszObjId   ; LPCSTR
    , "Ptr", pName   ; CERT_NAME_INFO*
    , "Ptr")   ; return: CERT_RDN_ATTR*

●CertFindRDNAttr(pszObjId, pName) = DLL("CRYPT32.dll", "void* CertFindRDNAttr(char*, void*)")
# 呼び出し: CertFindRDNAttr(pszObjId, pName)
# pszObjId : LPCSTR -> "char*"
# pName : CERT_NAME_INFO* -> "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)。