RpcCertGeneratePrincipalNameA

// RPCRT4.dll  (ANSI / -A)
#include <windows.h>

RPC_STATUS RpcCertGeneratePrincipalNameA(
    const CERT_CONTEXT* Context,
    DWORD Flags,
    LPSTR* pBuffer
);

<DllImport("RPCRT4.dll", CharSet:=CharSet.Ansi, ExactSpelling:=True)>
Public Shared Function RpcCertGeneratePrincipalNameA(
    Context As IntPtr,   ' CERT_CONTEXT*
    Flags As UInteger,   ' DWORD
    pBuffer As IntPtr   ' LPSTR* out
) As Integer
End Function

' Context : CERT_CONTEXT*
' Flags : DWORD
' pBuffer : LPSTR* out
Declare PtrSafe Function RpcCertGeneratePrincipalNameA Lib "rpcrt4" ( _
    ByVal Context As LongPtr, _
    ByVal Flags As Long, _
    ByVal pBuffer 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

RpcCertGeneratePrincipalNameA = ctypes.windll.rpcrt4.RpcCertGeneratePrincipalNameA
RpcCertGeneratePrincipalNameA.restype = ctypes.c_int
RpcCertGeneratePrincipalNameA.argtypes = [
    ctypes.c_void_p,  # Context : CERT_CONTEXT*
    wintypes.DWORD,  # Flags : DWORD
    ctypes.c_void_p,  # pBuffer : LPSTR* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('RPCRT4.dll')
RpcCertGeneratePrincipalNameA = Fiddle::Function.new(
  lib['RpcCertGeneratePrincipalNameA'],
  [
    Fiddle::TYPE_VOIDP,  # Context : CERT_CONTEXT*
    -Fiddle::TYPE_INT,  # Flags : DWORD
    Fiddle::TYPE_VOIDP,  # pBuffer : LPSTR* out
  ],
  Fiddle::TYPE_INT)

#[link(name = "rpcrt4")]
extern "system" {
    fn RpcCertGeneratePrincipalNameA(
        Context: *const CERT_CONTEXT,  // CERT_CONTEXT*
        Flags: u32,  // DWORD
        pBuffer: *mut *mut u8  // LPSTR* out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("RPCRT4.dll", CharSet = CharSet.Ansi)]
public static extern int RpcCertGeneratePrincipalNameA(IntPtr Context, uint Flags, IntPtr pBuffer);
"@
$api = Add-Type -MemberDefinition $sig -Name 'RPCRT4_RpcCertGeneratePrincipalNameA' -Namespace Win32 -PassThru
# $api::RpcCertGeneratePrincipalNameA(Context, Flags, pBuffer)

#uselib "RPCRT4.dll"
#func global RpcCertGeneratePrincipalNameA "RpcCertGeneratePrincipalNameA" sptr, sptr, sptr
; RpcCertGeneratePrincipalNameA varptr(Context), Flags, varptr(pBuffer)   ; 戻り値は stat
; Context : CERT_CONTEXT* -> "sptr"
; Flags : DWORD -> "sptr"
; pBuffer : LPSTR* 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 "RPCRT4.dll"
#cfunc global RpcCertGeneratePrincipalNameA "RpcCertGeneratePrincipalNameA" var, int, var
; res = RpcCertGeneratePrincipalNameA(Context, Flags, pBuffer)
; Context : CERT_CONTEXT* -> "var"
; Flags : DWORD -> "int"
; pBuffer : LPSTR* 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。

; RPC_STATUS RpcCertGeneratePrincipalNameA(CERT_CONTEXT* Context, DWORD Flags, LPSTR* pBuffer)
#uselib "RPCRT4.dll"
#cfunc global RpcCertGeneratePrincipalNameA "RpcCertGeneratePrincipalNameA" var, int, var
; res = RpcCertGeneratePrincipalNameA(Context, Flags, pBuffer)
; Context : CERT_CONTEXT* -> "var"
; Flags : DWORD -> "int"
; pBuffer : LPSTR* 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。

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

var (
	rpcrt4 = windows.NewLazySystemDLL("RPCRT4.dll")
	procRpcCertGeneratePrincipalNameA = rpcrt4.NewProc("RpcCertGeneratePrincipalNameA")
)

// Context (CERT_CONTEXT*), Flags (DWORD), pBuffer (LPSTR* out)
r1, _, err := procRpcCertGeneratePrincipalNameA.Call(
	uintptr(Context),
	uintptr(Flags),
	uintptr(pBuffer),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // RPC_STATUS

function RpcCertGeneratePrincipalNameA(
  Context: Pointer;   // CERT_CONTEXT*
  Flags: DWORD;   // DWORD
  pBuffer: PPAnsiChar   // LPSTR* out
): Integer; stdcall;
  external 'RPCRT4.dll' name 'RpcCertGeneratePrincipalNameA';

result := DllCall("RPCRT4\RpcCertGeneratePrincipalNameA"
    , "Ptr", Context   ; CERT_CONTEXT*
    , "UInt", Flags   ; DWORD
    , "Ptr", pBuffer   ; LPSTR* out
    , "Int")   ; return: RPC_STATUS

●RpcCertGeneratePrincipalNameA(Context, Flags, pBuffer) = DLL("RPCRT4.dll", "int RpcCertGeneratePrincipalNameA(void*, dword, void*)")
# 呼び出し: RpcCertGeneratePrincipalNameA(Context, Flags, pBuffer)
# Context : CERT_CONTEXT* -> "void*"
# Flags : DWORD -> "dword"
# pBuffer : LPSTR* 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)。