1gnutls_x509_crt_get_extension_by_oid2g(n3ug)tnlustls_x509_crt_get_extension_by_oid2(3)
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6 gnutls_x509_crt_get_extension_by_oid2 - API function
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9 #include <gnutls/x509.h>
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11 int gnutls_x509_crt_get_extension_by_oid2(gnutls_x509_crt_t cert, const
12 char * oid, unsigned indx, gnutls_datum_t * output, unsigned int *
13 critical);
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16 gnutls_x509_crt_t cert
17 should contain a gnutls_x509_crt_t type
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19 const char * oid
20 holds an Object Identified in null terminated string
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22 unsigned indx
23 In case multiple same OIDs exist in the extensions, this
24 specifies which to send. Use (0) to get the first one.
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26 gnutls_datum_t * output
27 will hold the allocated extension data
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29 unsigned int * critical
30 will be non-zero if the extension is marked as critical
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33 This function will return the extension specified by the OID in the
34 certificate. The extensions will be returned as binary data DER en‐
35 coded, in the provided buffer.
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38 On success, GNUTLS_E_SUCCESS (0) is returned, otherwise a negative er‐
39 ror code is returned. If the certificate does not contain the specified
40 extension GNUTLS_E_REQUESTED_DATA_NOT_AVAILABLE will be returned.
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43 3.3.8
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46 Report bugs to <bugs@gnutls.org>.
47 Home page: https://www.gnutls.org
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51 Copyright © 2001- Free Software Foundation, Inc., and others.
52 Copying and distribution of this file, with or without modification,
53 are permitted in any medium without royalty provided the copyright no‐
54 tice and this notice are preserved.
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57 The full documentation for gnutls is maintained as a Texinfo manual.
58 If the /usr/share/doc/gnutls/ directory does not contain the HTML form
59 visit
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61 https://www.gnutls.org/manual/
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63gnutls 3.g7n.u8tls_x509_crt_get_extension_by_oid2(3)