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/*
* Copyright (C) Internet Systems Consortium, Inc. ("ISC")
*
* 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.
*/
#ifndef DNS_SOA_H
#define DNS_SOA_H 1
/*****
***** Module Info
*****/
/*! \file dns/soa.h
* \brief
* SOA utilities.
*/
/***
*** Imports
***/
#include <inttypes.h>
#include <isc/lang.h>
#include <isc/types.h>
#include <dns/types.h>
ISC_LANG_BEGINDECLS
#define DNS_SOA_BUFFERSIZE ((2 * DNS_NAME_MAXWIRE) + (4 * 5))
isc_result_t
dns_soa_buildrdata(dns_name_t *origin, dns_name_t *contact,
dns_rdataclass_t rdclass,
uint32_t serial, uint32_t refresh,
uint32_t retry, uint32_t expire,
uint32_t minimum, unsigned char *buffer,
dns_rdata_t *rdata);
/*%<
* Build the rdata of an SOA record.
*
* Requires:
*\li buffer Points to a temporary buffer of at least
* DNS_SOA_BUFFERSIZE bytes.
*\li rdata Points to an initialized dns_rdata_t.
*
* Ensures:
* \li *rdata Contains a valid SOA rdata. The 'data' member
* refers to 'buffer'.
*/
uint32_t
dns_soa_getserial(dns_rdata_t *rdata);
uint32_t
dns_soa_getrefresh(dns_rdata_t *rdata);
uint32_t
dns_soa_getretry(dns_rdata_t *rdata);
uint32_t
dns_soa_getexpire(dns_rdata_t *rdata);
uint32_t
dns_soa_getminimum(dns_rdata_t *rdata);
/*
* Extract an integer field from the rdata of a SOA record.
*
* Requires:
* rdata refers to the rdata of a well-formed SOA record.
*/
void
dns_soa_setserial(uint32_t val, dns_rdata_t *rdata);
void
dns_soa_setrefresh(uint32_t val, dns_rdata_t *rdata);
void
dns_soa_setretry(uint32_t val, dns_rdata_t *rdata);
void
dns_soa_setexpire(uint32_t val, dns_rdata_t *rdata);
void
dns_soa_setminimum(uint32_t val, dns_rdata_t *rdata);
/*
* Change an integer field of a SOA record by modifying the
* rdata in-place.
*
* Requires:
* rdata refers to the rdata of a well-formed SOA record.
*/
ISC_LANG_ENDDECLS
#endif /* DNS_SOA_H */
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