Mercurial > trustbridge
comparison common/certhelp.c @ 259:20d515604daa
Added new module with helper functions to parse certs.
Currently only stuff to get O and CN from Subject DN.
| author | Sascha Wilde <wilde@intevation.de> |
|---|---|
| date | Tue, 01 Apr 2014 15:41:11 +0200 |
| parents | |
| children | e7a8b70021b6 |
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| 258:bf8c74992724 | 259:20d515604daa |
|---|---|
| 1 #include <stdlib.h> | |
| 2 | |
| 3 #include "certhelp.h" | |
| 4 #include "debug.h" | |
| 5 #include "errorcodes.h" | |
| 6 #include "strhelp.h" | |
| 7 | |
| 8 char * | |
| 9 get_oid_valstr(x509_name *namebuf, unsigned char *oid) | |
| 10 { | |
| 11 char *str = NULL; | |
| 12 size_t oid_len = strlen((char *)oid); | |
| 13 while ( namebuf != NULL ) | |
| 14 { | |
| 15 if ( (namebuf->oid.len == oid_len) && | |
| 16 (memcmp(namebuf->oid.p, oid, oid_len) == 0) ) | |
| 17 { | |
| 18 str = xstrndup((char *)namebuf->val.p, namebuf->val.len); | |
| 19 break; | |
| 20 } | |
| 21 namebuf = namebuf->next; | |
| 22 } | |
| 23 return str; | |
| 24 } | |
| 25 | |
| 26 char * | |
| 27 x509_parse_subject(unsigned char *derdata, size_t derlen, | |
| 28 unsigned char *oid) | |
| 29 { | |
| 30 x509_crt chain; | |
| 31 char *str; | |
| 32 | |
| 33 x509_crt_init(&chain); | |
| 34 if (x509_crt_parse_der(&chain, derdata, derlen) != 0) | |
| 35 { | |
| 36 DEBUGPRINTF("FATAL: Could not parse certificate!"); | |
| 37 exit(ERR_INVALID_CERT); | |
| 38 } | |
| 39 else | |
| 40 { | |
| 41 str = get_oid_valstr(&(chain.subject), oid); | |
| 42 x509_crt_free(&chain); | |
| 43 } | |
| 44 return str; | |
| 45 } |