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gnutls_x509_crq_get_extension_by_oid - API function
int gnutls_x509_crq_get_extension_by_oid(gnutls_x509_crq_t crq, const
char * oid, unsigned indx, void * buf, size_t * buf_size, unsigned int
should contain a gnutls_x509_crq_t type
const char * oid
holds an Object Identifier in a null terminated string
In case multiple same OIDs exist in the extensions, this
specifies which to get. Use (0) to get the first one.
void * buf a pointer to a structure to hold the name (may be null)
size_t * buf_size
initially holds the size of buf
unsigned int * critical
will be non-zero if the extension is marked as critical
This function will return the extension specified by the OID in the
certificate. The extensions will be returned as binary data DER
encoded, in the provided buffer.
On success, GNUTLS_E_SUCCESS (0) is returned, otherwise a negative
error code in case of an error. If the certificate does not contain
the specified extension GNUTLS_E_REQUESTED_DATA_NOT_AVAILABLE will be
Report bugs to <firstname.lastname@example.org>.
Home page: https://www.gnutls.org
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