tCertificate version: #%d\n", gnutls_x509_crt_get_version(cert)); size = sizeof(dn); gnutls_x509_crt_get_dn(cert, dn, &size); printf("\tDN: %s\n", dn); size = sizeof(dn); gnutls_x509_crt_get_issuer_dn(cert, dn, &size); printf("\tIssuer's DN: %s\n", dn); gnutls_x509_crt_deinit(cert); } }