@deftypefun {int} {gnutls_ocsp_resp_get_certs} (gnutls_ocsp_resp_const_t @var{resp}, gnutls_x509_crt_t ** @var{certs}, size_t * @var{ncerts}) @var{resp}: should contain a @code{gnutls_ocsp_resp_t} type @var{certs}: newly allocated array with @code{gnutls_x509_crt_t} certificates @var{ncerts}: output variable with number of allocated certs. This function will extract the X.509 certificates found in the Basic OCSP Response. The @code{certs} output variable will hold a newly allocated zero-terminated array with X.509 certificates. Every certificate in the array needs to be de-allocated with @code{gnutls_x509_crt_deinit()} and the array itself must be freed using @code{gnutls_free()} . Both the @code{certs} and @code{ncerts} variables may be NULL. Then the function will work as normal but will not return the NULL:d information. This can be used to get the number of certificates only, or to just get the certificate array without its size. @strong{Returns:} On success, @code{GNUTLS_E_SUCCESS} (0) is returned, otherwise a negative error value. @end deftypefun