/* Copyright (C) 2014 by Bundesamt für Sicherheit in der Informationstechnik
 * Software engineering by Intevation GmbH
 *
 * This file is Free Software under the GNU GPL (v>=2)
 * and comes with ABSOLUTELY NO WARRANTY!
 * See LICENSE.txt for details.
 */
#include "util.h"
#ifndef _WIN32
#include <unistd.h>
#include <sys/types.h>
#else
#include <windows.h>
#endif

bool
is_elevated()
{
  bool ret = false;
#ifndef _WIN32
  ret = (geteuid() == 0);
#else
  HANDLE hToken = NULL;
  if (OpenProcessToken (GetCurrentProcess(), TOKEN_QUERY, &hToken))
    {
      DWORD elevation;
      DWORD cbSize = sizeof (DWORD);
      if (GetTokenInformation (hToken, TokenElevation, &elevation,
                               sizeof (TokenElevation), &cbSize))
        {
          ret = elevation;
        }
    }
  if (hToken)
    CloseHandle (hToken);
#endif
  return ret;
}