C++20&Win API&WIL 特権のプライマリドメイン情報（名前・SID）を取得する

#include <string>
#include <iostream>

#define STRICT
#define NOMINMAX
#include <Windows.h>
#include <subauth.h>
#include <ntlsa.h>
#include <sddl.h>

#include <wil/resource.h>

#define THROW_IF_LSA_NTSTATUS_FAILED(status) THROW_IF_NTSTATUS_FAILED(::LsaNtStatusToWinError((status)))

// LSA_UNICODE_STRINGからstd::wstringを作成します。
constexpr std::wstring ToStlWString(const LSA_UNICODE_STRING& source) {
    return std::wstring(source.Buffer, source.Length);
}

// SIDからstd::wstringを作成します。
std::wstring ToStlWString(PSID sid) {
    LPWSTR p;
    if (!::ConvertSidToStringSidW(sid, &p))
        return {};
    std::wstring s(p);
    ::LocalFree(p);
    return std::move(s);
}

int main()
{
    wil::unique_hlsa policyHandle;
    LSA_OBJECT_ATTRIBUTES lsaObjAttrs{ sizeof(LSA_OBJECT_ATTRIBUTES) };
    THROW_IF_LSA_NTSTATUS_FAILED(::LsaOpenPolicy(
        nullptr,
        &lsaObjAttrs,
        POLICY_VIEW_LOCAL_INFORMATION, // LsaQueryInformationPolicy
        policyHandle.put()));

    wil::unique_lsamem_ptr<POLICY_PRIMARY_DOMAIN_INFO> policyPrimaryDomainInfo;
    THROW_IF_LSA_NTSTATUS_FAILED(::LsaQueryInformationPolicy(
        policyHandle.get(),
        PolicyPrimaryDomainInformation,
        wil::out_param_ptr<void**>(policyPrimaryDomainInfo)));

    std::wcout.imbue(std::locale("", std::locale::ctype));
    auto policyPrimaryDomainName{ ToStlWString(policyPrimaryDomainInfo->Name) };
    auto policyPrimaryDomainSid{ ToStlWString(&policyPrimaryDomainInfo->Sid) };
    std::wcout
        << policyPrimaryDomainName << std::endl
        << policyPrimaryDomainSid << std::endl;


    return 0;
}