gnutls_x509_crq_get_extension_by_oid3

Arguments

gnutls_x509_crq_t crq

should contain a gnutls_x509_crq_t type

const char * oid

holds an Object Identifier in a null terminated string

unsigned indx

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

Overview

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.

Returns

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 returned.

Since

2.8.0