@deftypefun {int} {gnutls_x509_crt_export2} (gnutls_x509_crt_t @var{cert}, gnutls_x509_crt_fmt_t @var{format}, gnutls_datum_t * @var{out})
@var{cert}: Holds the certificate

@var{format}: the format of output params. One of PEM or DER.

@var{out}: will contain a certificate PEM or DER encoded

This function will export the certificate to DER or PEM format.
The output buffer is allocated using @code{gnutls_malloc()} .

If the structure is PEM encoded, it will have a header
of "BEGIN CERTIFICATE".

@strong{Returns:} In case of failure a negative error code will be
returned, and 0 on success.

@strong{Since:} 3.1.3
@end deftypefun