@deftypefun {int} {gnutls_x509_rdn_get} (const gnutls_datum_t * @var{idn}, char * @var{buf}, size_t * @var{buf_size}) @var{idn}: should contain a DER encoded RDN sequence @var{buf}: a pointer to a structure to hold the peer's name @var{buf_size}: holds the size of @code{buf} This function will return the name of the given RDN sequence. The name will be in the form "C=xxxx,O=yyyy,CN=zzzz" as described in RFC4514. This function does not output a fully RFC4514 compliant string, if that is required see @code{gnutls_x509_rdn_get2()} . @strong{Returns:} On success, @code{GNUTLS_E_SUCCESS} (0) is returned, or @code{GNUTLS_E_SHORT_MEMORY_BUFFER} is returned and * @code{buf_size} is updated if the provided buffer is not long enough, otherwise a negative error value. @end deftypefun