Provided by: gnutls-doc_3.0.11+really2.12.14-5ubuntu3_all
gnutls_x509_crq_get_attribute_info - API function
#include <gnutls/x509.h> int gnutls_x509_crq_get_attribute_info(gnutls_x509_crq_t crq, int indx, void * oid, size_t * sizeof_oid);
gnutls_x509_crq_t crq should contain a gnutls_x509_crq_t structure int indx Specifies which attribute OID to send. Use zero to get the first one. void * oid a pointer to a structure to hold the OID size_t * sizeof_oid initially holds the maximum size of oid, on return holds actual size of oid.
This function will return the requested attribute OID in the certificate, and the critical flag for it. The attribute OID will be stored as a string in the provided buffer. Use gnutls_x509_crq_get_attribute_data() to extract the data. If the buffer provided is not long enough to hold the output, then *sizeof_oid is updated and GNUTLS_E_SHORT_MEMORY_BUFFER will be returned.
On success, GNUTLS_E_SUCCESS is returned, otherwise a negative value in case of an error. If your have reached the last extension available GNUTLS_E_REQUESTED_DATA_NOT_AVAILABLE will be returned.
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