/*

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* Copyright (C) Internet Systems Consortium, Inc. ("ISC")

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*

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* This Source Code Form is subject to the terms of the Mozilla Public

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* License, v. 2.0. If a copy of the MPL was not distributed with this

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* file, you can obtain one at https://mozilla.org/MPL/2.0/.

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*

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* See the COPYRIGHT file distributed with this work for additional

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* information regarding copyright ownership.

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*/

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#ifndef DNS_CALLBACKS_H

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#define DNS_CALLBACKS_H 1

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/*! \file dns/callbacks.h */

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/***

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*** Imports

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***/

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#include <isc/lang.h>

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#include <isc/magic.h>

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#include <dns/types.h>

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ISC_LANG_BEGINDECLS

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/***

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*** Types

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***/

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#define DNS_CALLBACK_MAGIC ISC_MAGIC('C','L','L','B')

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#define DNS_CALLBACK_VALID(cb) ISC_MAGIC_VALID(cb, DNS_CALLBACK_MAGIC)

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struct dns_rdatacallbacks {

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unsigned int magic;

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/*%

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* dns_load_master calls this when it has rdatasets to commit.

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*/

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dns_addrdatasetfunc_t add;

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/*%

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* This is called when reading in a database image from a 'map'

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* format zone file.

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*/

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dns_deserializefunc_t deserialize;

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/*%

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* dns_master_load*() call this when loading a raw zonefile,

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* to pass back information obtained from the file header

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*/

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dns_rawdatafunc_t rawdata;

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dns_zone_t *zone;

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/*%

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* dns_load_master / dns_rdata_fromtext call this to issue a error.

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*/

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void (*error)(struct dns_rdatacallbacks *, const char *, ...);

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/*%

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* dns_load_master / dns_rdata_fromtext call this to issue a warning.

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*/

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void (*warn)(struct dns_rdatacallbacks *, const char *, ...);

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/*%

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* Private data handles for use by the above callback functions.

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*/

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void *add_private;

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void *deserialize_private;

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void *error_private;

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void *warn_private;

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};

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/***

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*** Initialization

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***/

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void

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dns_rdatacallbacks_init(dns_rdatacallbacks_t *callbacks);

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/*%<

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* Initialize 'callbacks'.

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*

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* \li 'magic' is set to DNS_CALLBACK_MAGIC

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*

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* \li 'error' and 'warn' are set to default callbacks that print the

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* error message through the DNS library log context.

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*

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*\li All other elements are initialized to NULL.

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*

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* Requires:

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* \li 'callbacks' is a valid dns_rdatacallbacks_t,

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*/

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void

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dns_rdatacallbacks_init_stdio(dns_rdatacallbacks_t *callbacks);

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/*%<

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* Like dns_rdatacallbacks_init, but logs to stdio.

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*/

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ISC_LANG_ENDDECLS

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#endif /* DNS_CALLBACKS_H */

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