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WTHelperCertIsSelfSigned

関数

証明書が自己署名かどうかを判定する。

DLLWINTRUST.dll呼出規約winapi対応OSWindows XP 以降

シグネチャ

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

BOOL WTHelperCertIsSelfSigned(
    DWORD dwEncoding,
    CERT_INFO* pCert
);

パラメーター

名前	型	方向	説明
dwEncoding	DWORD	in	証明書のエンコード種別。X509_ASN_ENCODINGやPKCS_7_ASN_ENCODINGをビットORで指定する。
pCert	CERT_INFO*	inout	判定対象の証明書情報を保持するCERT_INFO構造体へのポインタ。自己署名か検査する。

戻り値の型: BOOL

各言語での呼び出し定義

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

BOOL WTHelperCertIsSelfSigned(
    DWORD dwEncoding,
    CERT_INFO* pCert
);

[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("WINTRUST.dll", ExactSpelling = true)]
static extern bool WTHelperCertIsSelfSigned(
    uint dwEncoding,   // DWORD
    IntPtr pCert   // CERT_INFO* in/out
);

<DllImport("WINTRUST.dll", ExactSpelling:=True)>
Public Shared Function WTHelperCertIsSelfSigned(
    dwEncoding As UInteger,   ' DWORD
    pCert As IntPtr   ' CERT_INFO* in/out
) As Boolean
End Function

' dwEncoding : DWORD
' pCert : CERT_INFO* in/out
Declare PtrSafe Function WTHelperCertIsSelfSigned Lib "wintrust" ( _
    ByVal dwEncoding As Long, _
    ByVal pCert 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

WTHelperCertIsSelfSigned = ctypes.windll.wintrust.WTHelperCertIsSelfSigned
WTHelperCertIsSelfSigned.restype = wintypes.BOOL
WTHelperCertIsSelfSigned.argtypes = [
    wintypes.DWORD,  # dwEncoding : DWORD
    ctypes.c_void_p,  # pCert : CERT_INFO* in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('WINTRUST.dll')
WTHelperCertIsSelfSigned = Fiddle::Function.new(
  lib['WTHelperCertIsSelfSigned'],
  [
    -Fiddle::TYPE_INT,  # dwEncoding : DWORD
    Fiddle::TYPE_VOIDP,  # pCert : CERT_INFO* in/out
  ],
  Fiddle::TYPE_INT)

#[link(name = "wintrust")]
extern "system" {
    fn WTHelperCertIsSelfSigned(
        dwEncoding: u32,  // DWORD
        pCert: *mut CERT_INFO  // CERT_INFO* in/out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("WINTRUST.dll")]
public static extern bool WTHelperCertIsSelfSigned(uint dwEncoding, IntPtr pCert);
"@
$api = Add-Type -MemberDefinition $sig -Name 'WINTRUST_WTHelperCertIsSelfSigned' -Namespace Win32 -PassThru
# $api::WTHelperCertIsSelfSigned(dwEncoding, pCert)

#uselib "WINTRUST.dll"
#func global WTHelperCertIsSelfSigned "WTHelperCertIsSelfSigned" sptr, sptr
; WTHelperCertIsSelfSigned dwEncoding, varptr(pCert)   ; 戻り値は stat
; dwEncoding : DWORD -> "sptr"
; pCert : CERT_INFO* in/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 "WINTRUST.dll"
#cfunc global WTHelperCertIsSelfSigned "WTHelperCertIsSelfSigned" int, var
; res = WTHelperCertIsSelfSigned(dwEncoding, pCert)
; dwEncoding : DWORD -> "int"
; pCert : CERT_INFO* in/out -> "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 "WINTRUST.dll"
#cfunc global WTHelperCertIsSelfSigned "WTHelperCertIsSelfSigned" int, sptr
; res = WTHelperCertIsSelfSigned(dwEncoding, varptr(pCert))
; dwEncoding : DWORD -> "int"
; pCert : CERT_INFO* in/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:

; BOOL WTHelperCertIsSelfSigned(DWORD dwEncoding, CERT_INFO* pCert)
#uselib "WINTRUST.dll"
#cfunc global WTHelperCertIsSelfSigned "WTHelperCertIsSelfSigned" int, var
; res = WTHelperCertIsSelfSigned(dwEncoding, pCert)
; dwEncoding : DWORD -> "int"
; pCert : CERT_INFO* in/out -> "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。; BOOL WTHelperCertIsSelfSigned(DWORD dwEncoding, CERT_INFO* pCert)
#uselib "WINTRUST.dll"
#cfunc global WTHelperCertIsSelfSigned "WTHelperCertIsSelfSigned" int, intptr
; res = WTHelperCertIsSelfSigned(dwEncoding, varptr(pCert))
; dwEncoding : DWORD -> "int"
; pCert : CERT_INFO* in/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 (
	wintrust = windows.NewLazySystemDLL("WINTRUST.dll")
	procWTHelperCertIsSelfSigned = wintrust.NewProc("WTHelperCertIsSelfSigned")
)

// dwEncoding (DWORD), pCert (CERT_INFO* in/out)
r1, _, err := procWTHelperCertIsSelfSigned.Call(
	uintptr(dwEncoding),
	uintptr(pCert),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function WTHelperCertIsSelfSigned(
  dwEncoding: DWORD;   // DWORD
  pCert: Pointer   // CERT_INFO* in/out
): BOOL; stdcall;
  external 'WINTRUST.dll' name 'WTHelperCertIsSelfSigned';

result := DllCall("WINTRUST\WTHelperCertIsSelfSigned"
    , "UInt", dwEncoding   ; DWORD
    , "Ptr", pCert   ; CERT_INFO* in/out
    , "Int")   ; return: BOOL

●WTHelperCertIsSelfSigned(dwEncoding, pCert) = DLL("WINTRUST.dll", "bool WTHelperCertIsSelfSigned(dword, void*)")
# 呼び出し: WTHelperCertIsSelfSigned(dwEncoding, pCert)
# dwEncoding : DWORD -> "dword"
# pCert : CERT_INFO* in/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)。