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[SHELL32][SDK] Implement SHInvokePrivilegedFunctionW (#5718)

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Add it to <undocshell.h>. Modify shell32.spec.
This commit is contained in:
Katayama Hirofumi MZ 2023-09-24 07:11:38 +09:00 • committed by GitHub
parent ed06c06dcb
commit cc6e444ceb
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3 changed files with 50 additions and 1 deletions
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41
dll/win32/shell32/utils.cpp
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@ -62,6 +62,47 @@ EXTERN_C DWORD WINAPI SHGetUserSessionId(_In_opt_ HANDLE hToken)
return dwSessionId;
}
/*************************************************************************
* SHInvokePrivilegedFunctionW (SHELL32.246)
*/
EXTERN_C
HRESULT WINAPI
SHInvokePrivilegedFunctionW(
_In_z_ LPCWSTR pszName,
_In_ PRIVILEGED_FUNCTION fn,
_In_opt_ LPARAM lParam)
{
TRACE("(%s %p %p)\n", debugstr_w(pszName), fn, lParam);
if (!pszName || !fn)
return E_INVALIDARG;
HANDLE hToken = NULL;
TOKEN_PRIVILEGES NewPriv, PrevPriv;
BOOL bAdjusted = FALSE;
if (SHOpenEffectiveToken(&hToken) &&
::LookupPrivilegeValueW(NULL, pszName, &NewPriv.Privileges[0].Luid))
{
NewPriv.PrivilegeCount = 1;
NewPriv.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
DWORD dwReturnSize;
bAdjusted = ::AdjustTokenPrivileges(hToken, FALSE, &NewPriv,
sizeof(PrevPriv), &PrevPriv, &dwReturnSize);
}
HRESULT hr = fn(lParam);
if (bAdjusted)
::AdjustTokenPrivileges(hToken, FALSE, &PrevPriv, 0, NULL, NULL);
if (hToken)
::CloseHandle(hToken);
return hr;
}
/*************************************************************************
* SHGetShellStyleHInstance (SHELL32.749)
*/