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annotate common/util.c @ 489:a9da8e4eeff7

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Fix instruction writing for Windows. Back to native winapi. What happens if you convert a Winapi handle to a c handle and how closing etc. works is to badly documented for me to be comfortable to use it.
author Andre Heinecke <aheinecke@intevation.de>
date Thu, 24 Apr 2014 15:46:35 +0000
parents 17e1c8f37d72
children 78959fd970b0
rev   line source
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1 /* Copyright (C) 2014 by Bundesamt für Sicherheit in der Informationstechnik
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2 * Software engineering by Intevation GmbH
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3 *
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4 * This file is Free Software under the GNU GPL (v>=2)
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5 * and comes with ABSOLUTELY NO WARRANTY!
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6 * See LICENSE.txt for details.
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7 */
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8 #include "util.h"
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9 #ifndef _WIN32
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10 #include <unistd.h>
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11 #include <sys/types.h>
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12 #else
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13 #include <windows.h>
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14 #endif
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15
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16 bool
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17 is_elevated()
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18 {
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19 bool ret = false;
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20 #ifndef _WIN32
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21 ret = (geteuid() == 0);
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22 #else
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23 HANDLE hToken = NULL;
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24 if (OpenProcessToken (GetCurrentProcess(), TOKEN_QUERY, &hToken))
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25 {
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26 DWORD elevation;
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27 DWORD cbSize = sizeof (DWORD);
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28 if (GetTokenInformation (hToken, TokenElevation, &elevation,
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29 sizeof (TokenElevation), &cbSize))
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30 {
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31 ret = elevation;
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32 }
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33 }
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34 if (hToken)
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35 CloseHandle (hToken);
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36 #endif
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37 return ret;
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38 }
http://wald.intevation.org/projects/trustbridge/