ホーム › Security.Cryptography › CryptGetOIDFunctionValue

CryptGetOIDFunctionValue

関数

OID関数に関連付けられたレジストリ値を取得する。

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 CryptGetOIDFunctionValue(
    DWORD dwEncodingType,
    LPCSTR pszFuncName,
    LPCSTR pszOID,
    LPCWSTR pwszValueName,   // optional
    DWORD* pdwValueType,   // optional
    BYTE* pbValueData,   // optional
    DWORD* pcbValueData   // optional
);

パラメーター

名前	型	方向
dwEncodingType	DWORD	in
pszFuncName	LPCSTR	in
pszOID	LPCSTR	in
pwszValueName	LPCWSTR	inoptional
pdwValueType	DWORD*	outoptional
pbValueData	BYTE*	outoptional
pcbValueData	DWORD*	inoutoptional

戻り値の型: BOOL

各言語での呼び出し定義

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

BOOL CryptGetOIDFunctionValue(
    DWORD dwEncodingType,
    LPCSTR pszFuncName,
    LPCSTR pszOID,
    LPCWSTR pwszValueName,   // optional
    DWORD* pdwValueType,   // optional
    BYTE* pbValueData,   // optional
    DWORD* pcbValueData   // optional
);

[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("CRYPT32.dll", SetLastError = true, ExactSpelling = true)]
static extern bool CryptGetOIDFunctionValue(
    uint dwEncodingType,   // DWORD
    [MarshalAs(UnmanagedType.LPStr)] string pszFuncName,   // LPCSTR
    [MarshalAs(UnmanagedType.LPStr)] string pszOID,   // LPCSTR
    [MarshalAs(UnmanagedType.LPWStr)] string pwszValueName,   // LPCWSTR optional
    IntPtr pdwValueType,   // DWORD* optional, out
    IntPtr pbValueData,   // BYTE* optional, out
    IntPtr pcbValueData   // DWORD* optional, in/out
);

<DllImport("CRYPT32.dll", SetLastError:=True, ExactSpelling:=True)>
Public Shared Function CryptGetOIDFunctionValue(
    dwEncodingType As UInteger,   ' DWORD
    <MarshalAs(UnmanagedType.LPStr)> pszFuncName As String,   ' LPCSTR
    <MarshalAs(UnmanagedType.LPStr)> pszOID As String,   ' LPCSTR
    <MarshalAs(UnmanagedType.LPWStr)> pwszValueName As String,   ' LPCWSTR optional
    pdwValueType As IntPtr,   ' DWORD* optional, out
    pbValueData As IntPtr,   ' BYTE* optional, out
    pcbValueData As IntPtr   ' DWORD* optional, in/out
) As Boolean
End Function

' dwEncodingType : DWORD
' pszFuncName : LPCSTR
' pszOID : LPCSTR
' pwszValueName : LPCWSTR optional
' pdwValueType : DWORD* optional, out
' pbValueData : BYTE* optional, out
' pcbValueData : DWORD* optional, in/out
Declare PtrSafe Function CryptGetOIDFunctionValue Lib "crypt32" ( _
    ByVal dwEncodingType As Long, _
    ByVal pszFuncName As String, _
    ByVal pszOID As String, _
    ByVal pwszValueName As LongPtr, _
    ByVal pdwValueType As LongPtr, _
    ByVal pbValueData As LongPtr, _
    ByVal pcbValueData 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

CryptGetOIDFunctionValue = ctypes.windll.crypt32.CryptGetOIDFunctionValue
CryptGetOIDFunctionValue.restype = wintypes.BOOL
CryptGetOIDFunctionValue.argtypes = [
    wintypes.DWORD,  # dwEncodingType : DWORD
    wintypes.LPCSTR,  # pszFuncName : LPCSTR
    wintypes.LPCSTR,  # pszOID : LPCSTR
    wintypes.LPCWSTR,  # pwszValueName : LPCWSTR optional
    ctypes.POINTER(wintypes.DWORD),  # pdwValueType : DWORD* optional, out
    ctypes.POINTER(ctypes.c_ubyte),  # pbValueData : BYTE* optional, out
    ctypes.POINTER(wintypes.DWORD),  # pcbValueData : DWORD* optional, in/out
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('CRYPT32.dll')
CryptGetOIDFunctionValue = Fiddle::Function.new(
  lib['CryptGetOIDFunctionValue'],
  [
    -Fiddle::TYPE_INT,  # dwEncodingType : DWORD
    Fiddle::TYPE_VOIDP,  # pszFuncName : LPCSTR
    Fiddle::TYPE_VOIDP,  # pszOID : LPCSTR
    Fiddle::TYPE_VOIDP,  # pwszValueName : LPCWSTR optional
    Fiddle::TYPE_VOIDP,  # pdwValueType : DWORD* optional, out
    Fiddle::TYPE_VOIDP,  # pbValueData : BYTE* optional, out
    Fiddle::TYPE_VOIDP,  # pcbValueData : DWORD* optional, in/out
  ],
  Fiddle::TYPE_INT)

#[link(name = "crypt32")]
extern "system" {
    fn CryptGetOIDFunctionValue(
        dwEncodingType: u32,  // DWORD
        pszFuncName: *const u8,  // LPCSTR
        pszOID: *const u8,  // LPCSTR
        pwszValueName: *const u16,  // LPCWSTR optional
        pdwValueType: *mut u32,  // DWORD* optional, out
        pbValueData: *mut u8,  // BYTE* optional, out
        pcbValueData: *mut u32  // DWORD* optional, in/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 CryptGetOIDFunctionValue(uint dwEncodingType, [MarshalAs(UnmanagedType.LPStr)] string pszFuncName, [MarshalAs(UnmanagedType.LPStr)] string pszOID, [MarshalAs(UnmanagedType.LPWStr)] string pwszValueName, IntPtr pdwValueType, IntPtr pbValueData, IntPtr pcbValueData);
"@
$api = Add-Type -MemberDefinition $sig -Name 'CRYPT32_CryptGetOIDFunctionValue' -Namespace Win32 -PassThru
# $api::CryptGetOIDFunctionValue(dwEncodingType, pszFuncName, pszOID, pwszValueName, pdwValueType, pbValueData, pcbValueData)

#uselib "CRYPT32.dll"
#func global CryptGetOIDFunctionValue "CryptGetOIDFunctionValue" sptr, sptr, sptr, sptr, sptr, sptr, sptr
; CryptGetOIDFunctionValue dwEncodingType, pszFuncName, pszOID, pwszValueName, varptr(pdwValueType), varptr(pbValueData), varptr(pcbValueData)   ; 戻り値は stat
; dwEncodingType : DWORD -> "sptr"
; pszFuncName : LPCSTR -> "sptr"
; pszOID : LPCSTR -> "sptr"
; pwszValueName : LPCWSTR optional -> "sptr"
; pdwValueType : DWORD* optional, out -> "sptr"
; pbValueData : BYTE* optional, out -> "sptr"
; pcbValueData : DWORD* optional, 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 "CRYPT32.dll"
#cfunc global CryptGetOIDFunctionValue "CryptGetOIDFunctionValue" int, str, str, wstr, var, var, var
; res = CryptGetOIDFunctionValue(dwEncodingType, pszFuncName, pszOID, pwszValueName, pdwValueType, pbValueData, pcbValueData)
; dwEncodingType : DWORD -> "int"
; pszFuncName : LPCSTR -> "str"
; pszOID : LPCSTR -> "str"
; pwszValueName : LPCWSTR optional -> "wstr"
; pdwValueType : DWORD* optional, out -> "var"
; pbValueData : BYTE* optional, out -> "var"
; pcbValueData : DWORD* optional, 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 "CRYPT32.dll"
#cfunc global CryptGetOIDFunctionValue "CryptGetOIDFunctionValue" int, str, str, wstr, sptr, sptr, sptr
; res = CryptGetOIDFunctionValue(dwEncodingType, pszFuncName, pszOID, pwszValueName, varptr(pdwValueType), varptr(pbValueData), varptr(pcbValueData))
; dwEncodingType : DWORD -> "int"
; pszFuncName : LPCSTR -> "str"
; pszOID : LPCSTR -> "str"
; pwszValueName : LPCWSTR optional -> "wstr"
; pdwValueType : DWORD* optional, out -> "sptr"
; pbValueData : BYTE* optional, out -> "sptr"
; pcbValueData : DWORD* optional, 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 CryptGetOIDFunctionValue(DWORD dwEncodingType, LPCSTR pszFuncName, LPCSTR pszOID, LPCWSTR pwszValueName, DWORD* pdwValueType, BYTE* pbValueData, DWORD* pcbValueData)
#uselib "CRYPT32.dll"
#cfunc global CryptGetOIDFunctionValue "CryptGetOIDFunctionValue" int, str, str, wstr, var, var, var
; res = CryptGetOIDFunctionValue(dwEncodingType, pszFuncName, pszOID, pwszValueName, pdwValueType, pbValueData, pcbValueData)
; dwEncodingType : DWORD -> "int"
; pszFuncName : LPCSTR -> "str"
; pszOID : LPCSTR -> "str"
; pwszValueName : LPCWSTR optional -> "wstr"
; pdwValueType : DWORD* optional, out -> "var"
; pbValueData : BYTE* optional, out -> "var"
; pcbValueData : DWORD* optional, 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 CryptGetOIDFunctionValue(DWORD dwEncodingType, LPCSTR pszFuncName, LPCSTR pszOID, LPCWSTR pwszValueName, DWORD* pdwValueType, BYTE* pbValueData, DWORD* pcbValueData)
#uselib "CRYPT32.dll"
#cfunc global CryptGetOIDFunctionValue "CryptGetOIDFunctionValue" int, str, str, wstr, intptr, intptr, intptr
; res = CryptGetOIDFunctionValue(dwEncodingType, pszFuncName, pszOID, pwszValueName, varptr(pdwValueType), varptr(pbValueData), varptr(pcbValueData))
; dwEncodingType : DWORD -> "int"
; pszFuncName : LPCSTR -> "str"
; pszOID : LPCSTR -> "str"
; pwszValueName : LPCWSTR optional -> "wstr"
; pdwValueType : DWORD* optional, out -> "intptr"
; pbValueData : BYTE* optional, out -> "intptr"
; pcbValueData : DWORD* optional, 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 (
	crypt32 = windows.NewLazySystemDLL("CRYPT32.dll")
	procCryptGetOIDFunctionValue = crypt32.NewProc("CryptGetOIDFunctionValue")
)

// dwEncodingType (DWORD), pszFuncName (LPCSTR), pszOID (LPCSTR), pwszValueName (LPCWSTR optional), pdwValueType (DWORD* optional, out), pbValueData (BYTE* optional, out), pcbValueData (DWORD* optional, in/out)
r1, _, err := procCryptGetOIDFunctionValue.Call(
	uintptr(dwEncodingType),
	uintptr(unsafe.Pointer(windows.BytePtrFromString(pszFuncName))),
	uintptr(unsafe.Pointer(windows.BytePtrFromString(pszOID))),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(pwszValueName))),
	uintptr(pdwValueType),
	uintptr(pbValueData),
	uintptr(pcbValueData),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function CryptGetOIDFunctionValue(
  dwEncodingType: DWORD;   // DWORD
  pszFuncName: PAnsiChar;   // LPCSTR
  pszOID: PAnsiChar;   // LPCSTR
  pwszValueName: PWideChar;   // LPCWSTR optional
  pdwValueType: Pointer;   // DWORD* optional, out
  pbValueData: Pointer;   // BYTE* optional, out
  pcbValueData: Pointer   // DWORD* optional, in/out
): BOOL; stdcall;
  external 'CRYPT32.dll' name 'CryptGetOIDFunctionValue';

result := DllCall("CRYPT32\CryptGetOIDFunctionValue"
    , "UInt", dwEncodingType   ; DWORD
    , "AStr", pszFuncName   ; LPCSTR
    , "AStr", pszOID   ; LPCSTR
    , "WStr", pwszValueName   ; LPCWSTR optional
    , "Ptr", pdwValueType   ; DWORD* optional, out
    , "Ptr", pbValueData   ; BYTE* optional, out
    , "Ptr", pcbValueData   ; DWORD* optional, in/out
    , "Int")   ; return: BOOL

●CryptGetOIDFunctionValue(dwEncodingType, pszFuncName, pszOID, pwszValueName, pdwValueType, pbValueData, pcbValueData) = DLL("CRYPT32.dll", "bool CryptGetOIDFunctionValue(dword, char*, char*, char*, void*, void*, void*)")
# 呼び出し: CryptGetOIDFunctionValue(dwEncodingType, pszFuncName, pszOID, pwszValueName, pdwValueType, pbValueData, pcbValueData)
# dwEncodingType : DWORD -> "dword"
# pszFuncName : LPCSTR -> "char*"
# pszOID : LPCSTR -> "char*"
# pwszValueName : LPCWSTR optional -> "char*"
# pdwValueType : DWORD* optional, out -> "void*"
# pbValueData : BYTE* optional, out -> "void*"
# pcbValueData : DWORD* optional, 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)。