/*

 * Copyright (C) 2012 KU Leuven

 *

 * Author: Nikos Mavrogiannopoulos

 *

 * This file is part of libdane.

 *

 * The libdane library is free software; you can redistribute it

 * and/or modify it under the terms of the GNU Lesser General Public

 * License as published by the Free Software Foundation; either

 * version 2.1 of the License, or (at your option) any later version.

 *

 * This library is distributed in the hope that it will be useful, but

 * WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

 * Lesser General Public License for more details.

 *

 * You should have received a copy of the GNU Lesser General Public License

 * along with this program.  If not, see <https://www.gnu.org/licenses/>

 *

 */

#include <config.h>

#include <stdio.h>

#include <stdlib.h>

#include <string.h>

#include <errno.h>

#include <arpa/inet.h>

#include <unbound.h>

#include <gnutls/dane.h>

#include <gnutls/x509.h>

#include <gnutls/abstract.h>

typedef struct cert_type_entry {

	const char *name;

	dane_cert_type_t type;

} cert_type_entry;

static const cert_type_entry dane_cert_types[] = {

	{"X.509", DANE_CERT_X509},

	{"SubjectPublicKeyInfo", DANE_CERT_PK},

	{NULL, 0}

};

typedef struct match_type_entry {

	const char *name;

	dane_match_type_t type;

} match_type_entry;

static const match_type_entry dane_match_types[] = {

	{"Exact match", DANE_MATCH_EXACT},

	{"SHA2-256 hash", DANE_MATCH_SHA2_256},

	{"SHA2-512 hash", DANE_MATCH_SHA2_512},

	{NULL, 0}

};

typedef struct cert_usage_entry {

	const char *name;

	dane_cert_usage_t usage;

} cert_usage_entry;

static const cert_usage_entry dane_cert_usages[] = {

	{"CA", DANE_CERT_USAGE_CA},

	{"End-entity", DANE_CERT_USAGE_EE},

	{"Local CA", DANE_CERT_USAGE_LOCAL_CA},

	{"Local end-entity", DANE_CERT_USAGE_LOCAL_EE},

	{NULL, 0}

};

/**

 * dane_cert_type_name:

 * @type: is a DANE match type

 *

 * Convert a #dane_cert_type_t value to a string.

 *

 * Returns: a string that contains the name of the specified

 *   type, or %NULL.

 **/

const char *dane_cert_type_name(dane_cert_type_t type)

{

	const cert_type_entry *e = dane_cert_types;

	while (e->name != NULL) {

		if (e->type == type)

			return e->name;

		e++;

	}

	return NULL;

}

/**

 * dane_match_type_name:

 * @type: is a DANE match type

 *

 * Convert a #dane_match_type_t value to a string.

 *

 * Returns: a string that contains the name of the specified

 *   type, or %NULL.

 **/

const char *dane_match_type_name(dane_match_type_t type)

{

	const match_type_entry *e = dane_match_types;

	while (e->name != NULL) {

		if (e->type == type)

			return e->name;

		e++;

	}

	return NULL;

}

/**

 * dane_cert_usage_name:

 * @usage: is a DANE certificate usage

 *

 * Convert a #dane_cert_usage_t value to a string.

 *

 * Returns: a string that contains the name of the specified

 *   type, or %NULL.

 **/

const char *dane_cert_usage_name(dane_cert_usage_t usage)

{

	const cert_usage_entry *e = dane_cert_usages;

	while (e->name != NULL) {

		if (e->usage == usage)

			return e->name;

		e++;

	}

	return NULL;

}