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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 http://mozilla.org/MPL/2.0/.
*
* See the COPYRIGHT file distributed with this work for additional
* information regarding copyright ownership.
*/
#ifndef DNS_RDATALIST_H
#define DNS_RDATALIST_H 1
/*****
***** Module Info
*****/
/*! \file dns/rdatalist.h
* \brief
* A DNS rdatalist is a list of rdata of a common type and class.
*
* MP:
*\li Clients of this module must impose any required synchronization.
*
* Reliability:
*\li No anticipated impact.
*
* Resources:
*\li TBS
*
* Security:
*\li No anticipated impact.
*
* Standards:
*\li None.
*/
#include <isc/lang.h>
#include <dns/types.h>
/*%
* Clients may use this type directly.
*/
struct dns_rdatalist {
dns_rdataclass_t rdclass;
dns_rdatatype_t type;
dns_rdatatype_t covers;
dns_ttl_t ttl;
ISC_LIST(dns_rdata_t) rdata;
ISC_LINK(dns_rdatalist_t) link;
/*%<
* Case vector. If the bit is set then the corresponding
* character in the owner name needs to be AND'd with 0x20,
* rendering that character upper case.
*/
unsigned char upper[32];
};
ISC_LANG_BEGINDECLS
void
dns_rdatalist_init(dns_rdatalist_t *rdatalist);
/*%<
* Initialize rdatalist.
*
* Ensures:
*\li All fields of rdatalist have been initialized to their default
* values.
*/
isc_result_t
dns_rdatalist_tordataset(dns_rdatalist_t *rdatalist,
dns_rdataset_t *rdataset);
/*%<
* Make 'rdataset' refer to the rdata in 'rdatalist'.
*
* Note:
*\li The caller must ensure that 'rdatalist' remains valid and unchanged
* while 'rdataset' is associated with it.
*
* Requires:
*
*\li 'rdatalist' is a valid rdatalist.
*
*\li 'rdataset' is a valid rdataset that is not currently associated with
* any rdata.
*
* Ensures,
* on success,
*
*\li 'rdataset' is associated with the rdata in rdatalist.
*
* Returns:
*\li #ISC_R_SUCCESS
*/
isc_result_t
dns_rdatalist_fromrdataset(dns_rdataset_t *rdataset,
dns_rdatalist_t **rdatalist);
/*%<
* Point 'rdatalist' to the rdatalist in 'rdataset'.
*
* Requires:
*
*\li 'rdatalist' is a pointer to a NULL dns_rdatalist_t pointer.
*
*\li 'rdataset' is a valid rdataset associated with an rdatalist.
*
* Ensures,
* on success,
*
*\li 'rdatalist' is pointed to the rdatalist in rdataset.
*
* Returns:
*\li #ISC_R_SUCCESS
*/
ISC_LANG_ENDDECLS
#endif /* DNS_RDATALIST_H */