@deftypefun {int} {gnutls_x509_aki_get_cert_issuer} (gnutls_x509_aki_t @var{aki}, unsigned int @var{seq}, unsigned int * @var{san_type}, gnutls_datum_t * @var{san}, gnutls_datum_t * @var{othername_oid}, gnutls_datum_t * @var{serial})
@var{aki}: The authority key ID

@var{seq}: The index of the name to get

@var{san_type}: Will hold the type of the name (of @code{gnutls_subject_alt_names_t} )

@var{san}: The alternative name data

@var{othername_oid}: The object identifier if  @code{san_type} is @code{GNUTLS_SAN_OTHERNAME} 

@var{serial}: The authorityCertSerialNumber number

This function will return a specific authorityCertIssuer name as stored in
the  @code{aki} type, as well as the authorityCertSerialNumber. All the returned
values should be treated as constant, and may be set to @code{NULL}  when are not required.

@strong{Returns:} On success, @code{GNUTLS_E_SUCCESS}  (0) is returned, @code{GNUTLS_E_REQUESTED_DATA_NOT_AVAILABLE} 
if the index is out of bounds, otherwise a negative error value.

@strong{Since:} 3.3.0
@end deftypefun