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/*
* Copyright (C) Internet Systems Consortium, Inc. ("ISC")
*
* SPDX-License-Identifier: MPL-2.0
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, you can obtain one at https://mozilla.org/MPL/2.0/.
*
* See the COPYRIGHT file distributed with this work for additional
* information regarding copyright ownership.
*/
#pragma once
/*! \file */
#include <inttypes.h>
#include <stdbool.h>
#include <isc/lang.h>
#include <isc/types.h>
ISC_LANG_BEGINDECLS
#define CFG_DURATION_MAXLEN 80
/*%
* A configuration object to store ISO 8601 durations.
*/
typedef struct isccfg_duration {
/*
* The duration is stored in multiple parts:
* [0] Years
* [1] Months
* [2] Weeks
* [3] Days
* [4] Hours
* [5] Minutes
* [6] Seconds
*/
uint32_t parts[7];
bool iso8601;
bool unlimited;
} isccfg_duration_t;
isc_result_t
isccfg_duration_fromtext(isc_textregion_t *source, isccfg_duration_t *duration);
/*%<
* Converts an ISO 8601 duration style value.
*
* Returns:
*\li ISC_R_SUCCESS
*\li DNS_R_BADNUMBER
*/
isc_result_t
isccfg_parse_duration(isc_textregion_t *source, isccfg_duration_t *duration);
/*%<
* Converts a duration string to a ISO 8601 duration.
* If the string does not start with a P (or p), fall back to TTL-style value.
* In that case the duration will be treated in seconds only.
*
* Returns:
*\li ISC_R_SUCCESS
*\li DNS_R_BADNUMBER
*\li DNS_R_BADTTL
*/
uint32_t
isccfg_duration_toseconds(const isccfg_duration_t *duration);
/*%<
* Converts an ISO 8601 duration to seconds.
* The conversion is approximate:
* - Months will be treated as 31 days.
* - Years will be treated as 365 days.
*
* Notes:
*\li If the duration in seconds is greater than UINT32_MAX, the return value
* will be UINT32_MAX.
*
* Returns:
*\li The duration in seconds.
*/
ISC_LANG_ENDDECLS
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