typedef enum gnutls_alert_level { GNUTLS_AL_WARNING = 1, GNUTLS_AL_FATAL
} gnutls_alert_level;

typedef enum AlertDescription {
    GNUTLS_A_CLOSE_NOTIFY, GNUTLS_A_UNEXPECTED_MESSAGE = 10,
    GNUTLS_A_BAD_RECORD_MAC = 20, GNUTLS_A_DECRYPTION_FAILED,
    GNUTLS_A_RECORD_OVERFLOW, GNUTLS_A_DECOMPRESSION_FAILURE = 30,
    GNUTLS_A_HANDSHAKE_FAILURE = 40, GNUTLS_A_SSL3_NO_CERTIFICATE = 41,
    GNUTLS_A_BAD_CERTIFICATE = 42, GNUTLS_A_UNSUPPORTED_CERTIFICATE,
    GNUTLS_A_CERTIFICATE_REVOKED, GNUTLS_A_CERTIFICATE_EXPIRED,
    GNUTLS_A_CERTIFICATE_UNKNOWN, GNUTLS_A_ILLEGAL_PARAMETER,
    GNUTLS_A_UNKNOWN_CA, GNUTLS_A_ACCESS_DENIED, GNUTLS_A_DECODE_ERROR =
	50,
    GNUTLS_A_DECRYPT_ERROR, GNUTLS_A_EXPORT_RESTRICTION = 60,
    GNUTLS_A_PROTOCOL_VERSION = 70, GNUTLS_A_INSUFFICIENT_SECURITY,
    GNUTLS_A_INTERNAL_ERROR = 80, GNUTLS_A_USER_CANCELED = 90,
    GNUTLS_A_NO_RENEGOTIATION = 100, GNUTLS_A_UNSUPPORTED_EXTENSION = 110,
    GNUTLS_A_CERTIFICATE_UNOBTAINABLE = 111, GNUTLS_A_UNRECOGNIZED_NAME =
	112,
    GNUTLS_A_UNKNOWN_SRP_USERNAME = 120, GNUTLS_A_MISSING_SRP_USERNAME =
	121
} gnutls_alert_description;

gnutls_alert_description gnutls_alert_get(gnutls_session session);
int gnutls_alert_send(gnutls_session session, gnutls_alert_level level,
		      gnutls_alert_description desc);
const char *gnutls_alert_get_name(gnutls_alert_level alert);