Mercurial > trustbridge

annotate common/certhelp.c @ 633:6c090638b2b4

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Use static buffer for module file name. According to the msdn examle the return value of getmodulefilename should be used to indicate success and not the size. And according to comments on that function on Windows 8.1 it does not return the needed size. So better be more robust and just use max_path as a limit.
author Andre Heinecke <andre.heinecke@intevation.de>
date Mon, 23 Jun 2014 15:29:48 +0200
parents 17e1c8f37d72
children 265583011f24
rev   line source
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Andre Heinecke <aheinecke@intevation.de>
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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 <stdlib.h>
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9
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10 #include "certhelp.h"
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11 #include "logging.h"
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12 #include "errorcodes.h"
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13 #include "strhelp.h"
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14
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15 char *
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16 get_oid_valstr(x509_name *namebuf, unsigned char *oid)
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17 {
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18 char *str = NULL;
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19 size_t oid_len = strlen((char *)oid);
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20 while ( namebuf != NULL )
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21 {
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22 if ( (namebuf->oid.len == oid_len) &&
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23 (memcmp(namebuf->oid.p, oid, oid_len) == 0) )
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24 {
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25 str = xstrndup((char *)namebuf->val.p, namebuf->val.len);
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26 break;
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27 }
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28 namebuf = namebuf->next;
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29 }
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30 return str;
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31 }
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32
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33 char *
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34 x509_parse_subject(unsigned char *derdata, size_t derlen,
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35 unsigned char *oid)
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36 {
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37 x509_crt chain;
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38 char *str;
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39
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40 x509_crt_init(&chain);
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41 if (x509_crt_parse_der(&chain, derdata, derlen) != 0)
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42 {
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43 ERRORPRINTF("Could not parse certificate!\n");
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44 return NULL;
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45 }
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46 else
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47 {
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48 str = get_oid_valstr(&(chain.subject), oid);
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49 x509_crt_free(&chain);
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50 }
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51 return str;
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52 }
http://wald.intevation.org/projects/trustbridge/