@deftypefun {int} {gnutls_x509_ext_print} (gnutls_x509_ext_st * @var{exts}, unsigned int @var{exts_size}, gnutls_certificate_print_formats_t @var{format}, gnutls_datum_t * @var{out})
@var{exts}: The data to be printed

@var{exts_size}: the number of available structures

@var{format}: Indicate the format to use

@var{out}: Newly allocated datum with null terminated string.

This function will pretty print X.509 certificate extensions, 
suitable for display to a human.

The output  @code{out} needs to be deallocated using @code{gnutls_free()} .

@strong{Returns:} On success, @code{GNUTLS_E_SUCCESS}  (0) is returned, otherwise a
negative error value.
@end deftypefun