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CryptQueryObject

関数

ファイルやBLOBの暗号オブジェクト種別と内容を照会する。

DLLCRYPT32.dll呼出規約winapiSetLastErrorあり対応OSWindows XP 以降

シグネチャ

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

BOOL CryptQueryObject(
    CERT_QUERY_OBJECT_TYPE dwObjectType,
    const void* pvObject,
    CERT_QUERY_CONTENT_TYPE_FLAGS dwExpectedContentTypeFlags,
    CERT_QUERY_FORMAT_TYPE_FLAGS dwExpectedFormatTypeFlags,
    DWORD dwFlags,
    CERT_QUERY_ENCODING_TYPE* pdwMsgAndCertEncodingType,   // optional
    CERT_QUERY_CONTENT_TYPE* pdwContentType,   // optional
    CERT_QUERY_FORMAT_TYPE* pdwFormatType,   // optional
    HCERTSTORE* phCertStore,   // optional
    void** phMsg,   // optional
    const void** ppvContext   // optional
);

パラメーター

名前	型	方向
dwObjectType	CERT_QUERY_OBJECT_TYPE	in
pvObject	void*	in
dwExpectedContentTypeFlags	CERT_QUERY_CONTENT_TYPE_FLAGS	in
dwExpectedFormatTypeFlags	CERT_QUERY_FORMAT_TYPE_FLAGS	in
dwFlags	DWORD	in
pdwMsgAndCertEncodingType	CERT_QUERY_ENCODING_TYPE*	outoptional
pdwContentType	CERT_QUERY_CONTENT_TYPE*	outoptional
pdwFormatType	CERT_QUERY_FORMAT_TYPE*	outoptional
phCertStore	HCERTSTORE*	outoptional
phMsg	void**	outoptional
ppvContext	void**	outoptional

戻り値の型: BOOL

各言語での呼び出し定義

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

BOOL CryptQueryObject(
    CERT_QUERY_OBJECT_TYPE dwObjectType,
    const void* pvObject,
    CERT_QUERY_CONTENT_TYPE_FLAGS dwExpectedContentTypeFlags,
    CERT_QUERY_FORMAT_TYPE_FLAGS dwExpectedFormatTypeFlags,
    DWORD dwFlags,
    CERT_QUERY_ENCODING_TYPE* pdwMsgAndCertEncodingType,   // optional
    CERT_QUERY_CONTENT_TYPE* pdwContentType,   // optional
    CERT_QUERY_FORMAT_TYPE* pdwFormatType,   // optional
    HCERTSTORE* phCertStore,   // optional
    void** phMsg,   // optional
    const void** ppvContext   // optional
);

[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("CRYPT32.dll", SetLastError = true, ExactSpelling = true)]
static extern bool CryptQueryObject(
    uint dwObjectType,   // CERT_QUERY_OBJECT_TYPE
    IntPtr pvObject,   // void*
    uint dwExpectedContentTypeFlags,   // CERT_QUERY_CONTENT_TYPE_FLAGS
    uint dwExpectedFormatTypeFlags,   // CERT_QUERY_FORMAT_TYPE_FLAGS
    uint dwFlags,   // DWORD
    IntPtr pdwMsgAndCertEncodingType,   // CERT_QUERY_ENCODING_TYPE* optional, out
    IntPtr pdwContentType,   // CERT_QUERY_CONTENT_TYPE* optional, out
    IntPtr pdwFormatType,   // CERT_QUERY_FORMAT_TYPE* optional, out
    IntPtr phCertStore,   // HCERTSTORE* optional, out
    IntPtr phMsg,   // void** optional, out
    IntPtr ppvContext   // void** optional, out
);

<DllImport("CRYPT32.dll", SetLastError:=True, ExactSpelling:=True)>
Public Shared Function CryptQueryObject(
    dwObjectType As UInteger,   ' CERT_QUERY_OBJECT_TYPE
    pvObject As IntPtr,   ' void*
    dwExpectedContentTypeFlags As UInteger,   ' CERT_QUERY_CONTENT_TYPE_FLAGS
    dwExpectedFormatTypeFlags As UInteger,   ' CERT_QUERY_FORMAT_TYPE_FLAGS
    dwFlags As UInteger,   ' DWORD
    pdwMsgAndCertEncodingType As IntPtr,   ' CERT_QUERY_ENCODING_TYPE* optional, out
    pdwContentType As IntPtr,   ' CERT_QUERY_CONTENT_TYPE* optional, out
    pdwFormatType As IntPtr,   ' CERT_QUERY_FORMAT_TYPE* optional, out
    phCertStore As IntPtr,   ' HCERTSTORE* optional, out
    phMsg As IntPtr,   ' void** optional, out
    ppvContext As IntPtr   ' void** optional, out
) As Boolean
End Function

' dwObjectType : CERT_QUERY_OBJECT_TYPE
' pvObject : void*
' dwExpectedContentTypeFlags : CERT_QUERY_CONTENT_TYPE_FLAGS
' dwExpectedFormatTypeFlags : CERT_QUERY_FORMAT_TYPE_FLAGS
' dwFlags : DWORD
' pdwMsgAndCertEncodingType : CERT_QUERY_ENCODING_TYPE* optional, out
' pdwContentType : CERT_QUERY_CONTENT_TYPE* optional, out
' pdwFormatType : CERT_QUERY_FORMAT_TYPE* optional, out
' phCertStore : HCERTSTORE* optional, out
' phMsg : void** optional, out
' ppvContext : void** optional, out
Declare PtrSafe Function CryptQueryObject Lib "crypt32" ( _
    ByVal dwObjectType As Long, _
    ByVal pvObject As LongPtr, _
    ByVal dwExpectedContentTypeFlags As Long, _
    ByVal dwExpectedFormatTypeFlags As Long, _
    ByVal dwFlags As Long, _
    ByVal pdwMsgAndCertEncodingType As LongPtr, _
    ByVal pdwContentType As LongPtr, _
    ByVal pdwFormatType As LongPtr, _
    ByVal phCertStore As LongPtr, _
    ByVal phMsg As LongPtr, _
    ByVal ppvContext 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

CryptQueryObject = ctypes.windll.crypt32.CryptQueryObject
CryptQueryObject.restype = wintypes.BOOL
CryptQueryObject.argtypes = [
    wintypes.DWORD,  # dwObjectType : CERT_QUERY_OBJECT_TYPE
    ctypes.POINTER(None),  # pvObject : void*
    wintypes.DWORD,  # dwExpectedContentTypeFlags : CERT_QUERY_CONTENT_TYPE_FLAGS
    wintypes.DWORD,  # dwExpectedFormatTypeFlags : CERT_QUERY_FORMAT_TYPE_FLAGS
    wintypes.DWORD,  # dwFlags : DWORD
    ctypes.c_void_p,  # pdwMsgAndCertEncodingType : CERT_QUERY_ENCODING_TYPE* optional, out
    ctypes.c_void_p,  # pdwContentType : CERT_QUERY_CONTENT_TYPE* optional, out
    ctypes.c_void_p,  # pdwFormatType : CERT_QUERY_FORMAT_TYPE* optional, out
    ctypes.c_void_p,  # phCertStore : HCERTSTORE* optional, out
    ctypes.c_void_p,  # phMsg : void** optional, out
    ctypes.c_void_p,  # ppvContext : void** optional, out
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('CRYPT32.dll')
CryptQueryObject = Fiddle::Function.new(
  lib['CryptQueryObject'],
  [
    -Fiddle::TYPE_INT,  # dwObjectType : CERT_QUERY_OBJECT_TYPE
    Fiddle::TYPE_VOIDP,  # pvObject : void*
    -Fiddle::TYPE_INT,  # dwExpectedContentTypeFlags : CERT_QUERY_CONTENT_TYPE_FLAGS
    -Fiddle::TYPE_INT,  # dwExpectedFormatTypeFlags : CERT_QUERY_FORMAT_TYPE_FLAGS
    -Fiddle::TYPE_INT,  # dwFlags : DWORD
    Fiddle::TYPE_VOIDP,  # pdwMsgAndCertEncodingType : CERT_QUERY_ENCODING_TYPE* optional, out
    Fiddle::TYPE_VOIDP,  # pdwContentType : CERT_QUERY_CONTENT_TYPE* optional, out
    Fiddle::TYPE_VOIDP,  # pdwFormatType : CERT_QUERY_FORMAT_TYPE* optional, out
    Fiddle::TYPE_VOIDP,  # phCertStore : HCERTSTORE* optional, out
    Fiddle::TYPE_VOIDP,  # phMsg : void** optional, out
    Fiddle::TYPE_VOIDP,  # ppvContext : void** optional, out
  ],
  Fiddle::TYPE_INT)

#[link(name = "crypt32")]
extern "system" {
    fn CryptQueryObject(
        dwObjectType: u32,  // CERT_QUERY_OBJECT_TYPE
        pvObject: *const (),  // void*
        dwExpectedContentTypeFlags: u32,  // CERT_QUERY_CONTENT_TYPE_FLAGS
        dwExpectedFormatTypeFlags: u32,  // CERT_QUERY_FORMAT_TYPE_FLAGS
        dwFlags: u32,  // DWORD
        pdwMsgAndCertEncodingType: *mut u32,  // CERT_QUERY_ENCODING_TYPE* optional, out
        pdwContentType: *mut u32,  // CERT_QUERY_CONTENT_TYPE* optional, out
        pdwFormatType: *mut u32,  // CERT_QUERY_FORMAT_TYPE* optional, out
        phCertStore: *mut *mut core::ffi::c_void,  // HCERTSTORE* optional, out
        phMsg: *mut *mut (),  // void** optional, out
        ppvContext: *const *const ()  // void** optional, out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("CRYPT32.dll", SetLastError = true)]
public static extern bool CryptQueryObject(uint dwObjectType, IntPtr pvObject, uint dwExpectedContentTypeFlags, uint dwExpectedFormatTypeFlags, uint dwFlags, IntPtr pdwMsgAndCertEncodingType, IntPtr pdwContentType, IntPtr pdwFormatType, IntPtr phCertStore, IntPtr phMsg, IntPtr ppvContext);
"@
$api = Add-Type -MemberDefinition $sig -Name 'CRYPT32_CryptQueryObject' -Namespace Win32 -PassThru
# $api::CryptQueryObject(dwObjectType, pvObject, dwExpectedContentTypeFlags, dwExpectedFormatTypeFlags, dwFlags, pdwMsgAndCertEncodingType, pdwContentType, pdwFormatType, phCertStore, phMsg, ppvContext)

#uselib "CRYPT32.dll"
#func global CryptQueryObject "CryptQueryObject" sptr, sptr, sptr, sptr, sptr, sptr, sptr, sptr, sptr, sptr, sptr
; CryptQueryObject dwObjectType, pvObject, dwExpectedContentTypeFlags, dwExpectedFormatTypeFlags, dwFlags, pdwMsgAndCertEncodingType, pdwContentType, pdwFormatType, phCertStore, phMsg, ppvContext   ; 戻り値は stat
; dwObjectType : CERT_QUERY_OBJECT_TYPE -> "sptr"
; pvObject : void* -> "sptr"
; dwExpectedContentTypeFlags : CERT_QUERY_CONTENT_TYPE_FLAGS -> "sptr"
; dwExpectedFormatTypeFlags : CERT_QUERY_FORMAT_TYPE_FLAGS -> "sptr"
; dwFlags : DWORD -> "sptr"
; pdwMsgAndCertEncodingType : CERT_QUERY_ENCODING_TYPE* optional, out -> "sptr"
; pdwContentType : CERT_QUERY_CONTENT_TYPE* optional, out -> "sptr"
; pdwFormatType : CERT_QUERY_FORMAT_TYPE* optional, out -> "sptr"
; phCertStore : HCERTSTORE* optional, out -> "sptr"
; phMsg : void** optional, out -> "sptr"
; ppvContext : void** 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。

#uselib "CRYPT32.dll"
#cfunc global CryptQueryObject "CryptQueryObject" int, sptr, int, int, int, int, int, int, sptr, sptr, sptr
; res = CryptQueryObject(dwObjectType, pvObject, dwExpectedContentTypeFlags, dwExpectedFormatTypeFlags, dwFlags, pdwMsgAndCertEncodingType, pdwContentType, pdwFormatType, phCertStore, phMsg, ppvContext)
; dwObjectType : CERT_QUERY_OBJECT_TYPE -> "int"
; pvObject : void* -> "sptr"
; dwExpectedContentTypeFlags : CERT_QUERY_CONTENT_TYPE_FLAGS -> "int"
; dwExpectedFormatTypeFlags : CERT_QUERY_FORMAT_TYPE_FLAGS -> "int"
; dwFlags : DWORD -> "int"
; pdwMsgAndCertEncodingType : CERT_QUERY_ENCODING_TYPE* optional, out -> "int"
; pdwContentType : CERT_QUERY_CONTENT_TYPE* optional, out -> "int"
; pdwFormatType : CERT_QUERY_FORMAT_TYPE* optional, out -> "int"
; phCertStore : HCERTSTORE* optional, out -> "sptr"
; phMsg : void** optional, out -> "sptr"
; ppvContext : void** optional, out -> "sptr"

; BOOL CryptQueryObject(CERT_QUERY_OBJECT_TYPE dwObjectType, void* pvObject, CERT_QUERY_CONTENT_TYPE_FLAGS dwExpectedContentTypeFlags, CERT_QUERY_FORMAT_TYPE_FLAGS dwExpectedFormatTypeFlags, DWORD dwFlags, CERT_QUERY_ENCODING_TYPE* pdwMsgAndCertEncodingType, CERT_QUERY_CONTENT_TYPE* pdwContentType, CERT_QUERY_FORMAT_TYPE* pdwFormatType, HCERTSTORE* phCertStore, void** phMsg, void** ppvContext)
#uselib "CRYPT32.dll"
#cfunc global CryptQueryObject "CryptQueryObject" int, intptr, int, int, int, int, int, int, intptr, intptr, intptr
; res = CryptQueryObject(dwObjectType, pvObject, dwExpectedContentTypeFlags, dwExpectedFormatTypeFlags, dwFlags, pdwMsgAndCertEncodingType, pdwContentType, pdwFormatType, phCertStore, phMsg, ppvContext)
; dwObjectType : CERT_QUERY_OBJECT_TYPE -> "int"
; pvObject : void* -> "intptr"
; dwExpectedContentTypeFlags : CERT_QUERY_CONTENT_TYPE_FLAGS -> "int"
; dwExpectedFormatTypeFlags : CERT_QUERY_FORMAT_TYPE_FLAGS -> "int"
; dwFlags : DWORD -> "int"
; pdwMsgAndCertEncodingType : CERT_QUERY_ENCODING_TYPE* optional, out -> "int"
; pdwContentType : CERT_QUERY_CONTENT_TYPE* optional, out -> "int"
; pdwFormatType : CERT_QUERY_FORMAT_TYPE* optional, out -> "int"
; phCertStore : HCERTSTORE* optional, out -> "intptr"
; phMsg : void** optional, out -> "intptr"
; ppvContext : void** optional, out -> "intptr"

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

var (
	crypt32 = windows.NewLazySystemDLL("CRYPT32.dll")
	procCryptQueryObject = crypt32.NewProc("CryptQueryObject")
)

// dwObjectType (CERT_QUERY_OBJECT_TYPE), pvObject (void*), dwExpectedContentTypeFlags (CERT_QUERY_CONTENT_TYPE_FLAGS), dwExpectedFormatTypeFlags (CERT_QUERY_FORMAT_TYPE_FLAGS), dwFlags (DWORD), pdwMsgAndCertEncodingType (CERT_QUERY_ENCODING_TYPE* optional, out), pdwContentType (CERT_QUERY_CONTENT_TYPE* optional, out), pdwFormatType (CERT_QUERY_FORMAT_TYPE* optional, out), phCertStore (HCERTSTORE* optional, out), phMsg (void** optional, out), ppvContext (void** optional, out)
r1, _, err := procCryptQueryObject.Call(
	uintptr(dwObjectType),
	uintptr(pvObject),
	uintptr(dwExpectedContentTypeFlags),
	uintptr(dwExpectedFormatTypeFlags),
	uintptr(dwFlags),
	uintptr(pdwMsgAndCertEncodingType),
	uintptr(pdwContentType),
	uintptr(pdwFormatType),
	uintptr(phCertStore),
	uintptr(phMsg),
	uintptr(ppvContext),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function CryptQueryObject(
  dwObjectType: DWORD;   // CERT_QUERY_OBJECT_TYPE
  pvObject: Pointer;   // void*
  dwExpectedContentTypeFlags: DWORD;   // CERT_QUERY_CONTENT_TYPE_FLAGS
  dwExpectedFormatTypeFlags: DWORD;   // CERT_QUERY_FORMAT_TYPE_FLAGS
  dwFlags: DWORD;   // DWORD
  pdwMsgAndCertEncodingType: Pointer;   // CERT_QUERY_ENCODING_TYPE* optional, out
  pdwContentType: Pointer;   // CERT_QUERY_CONTENT_TYPE* optional, out
  pdwFormatType: Pointer;   // CERT_QUERY_FORMAT_TYPE* optional, out
  phCertStore: Pointer;   // HCERTSTORE* optional, out
  phMsg: Pointer;   // void** optional, out
  ppvContext: Pointer   // void** optional, out
): BOOL; stdcall;
  external 'CRYPT32.dll' name 'CryptQueryObject';

result := DllCall("CRYPT32\CryptQueryObject"
    , "UInt", dwObjectType   ; CERT_QUERY_OBJECT_TYPE
    , "Ptr", pvObject   ; void*
    , "UInt", dwExpectedContentTypeFlags   ; CERT_QUERY_CONTENT_TYPE_FLAGS
    , "UInt", dwExpectedFormatTypeFlags   ; CERT_QUERY_FORMAT_TYPE_FLAGS
    , "UInt", dwFlags   ; DWORD
    , "Ptr", pdwMsgAndCertEncodingType   ; CERT_QUERY_ENCODING_TYPE* optional, out
    , "Ptr", pdwContentType   ; CERT_QUERY_CONTENT_TYPE* optional, out
    , "Ptr", pdwFormatType   ; CERT_QUERY_FORMAT_TYPE* optional, out
    , "Ptr", phCertStore   ; HCERTSTORE* optional, out
    , "Ptr", phMsg   ; void** optional, out
    , "Ptr", ppvContext   ; void** optional, out
    , "Int")   ; return: BOOL

●CryptQueryObject(dwObjectType, pvObject, dwExpectedContentTypeFlags, dwExpectedFormatTypeFlags, dwFlags, pdwMsgAndCertEncodingType, pdwContentType, pdwFormatType, phCertStore, phMsg, ppvContext) = DLL("CRYPT32.dll", "bool CryptQueryObject(dword, void*, dword, dword, dword, void*, void*, void*, void*, void*, void*)")
# 呼び出し: CryptQueryObject(dwObjectType, pvObject, dwExpectedContentTypeFlags, dwExpectedFormatTypeFlags, dwFlags, pdwMsgAndCertEncodingType, pdwContentType, pdwFormatType, phCertStore, phMsg, ppvContext)
# dwObjectType : CERT_QUERY_OBJECT_TYPE -> "dword"
# pvObject : void* -> "void*"
# dwExpectedContentTypeFlags : CERT_QUERY_CONTENT_TYPE_FLAGS -> "dword"
# dwExpectedFormatTypeFlags : CERT_QUERY_FORMAT_TYPE_FLAGS -> "dword"
# dwFlags : DWORD -> "dword"
# pdwMsgAndCertEncodingType : CERT_QUERY_ENCODING_TYPE* optional, out -> "void*"
# pdwContentType : CERT_QUERY_CONTENT_TYPE* optional, out -> "void*"
# pdwFormatType : CERT_QUERY_FORMAT_TYPE* optional, out -> "void*"
# phCertStore : HCERTSTORE* optional, out -> "void*"
# phMsg : void** optional, out -> "void*"
# ppvContext : void** 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)。