int gnutls_certificate_set_x509_crl_file(gnutls_certificate_credentials_t res, const char * crlfile, gnutls_x509_crt_fmt_t type);
is a gnutls_certificate_credentials_t structure.
const char * crlfile
is a file containing the list of verified CRLs (DER or PEM list)
is PEM or DER
This function adds the trusted CRLs in order to verify client or server
certificates. In case of a client this is not required
to be called if the certificates are not verified using
This function may be called multiple times.
number of CRLs processed or a negative value on error.