165 lines
3.5 KiB
C
165 lines
3.5 KiB
C
/*
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* Copyright (C) 1999-2001 Internet Software Consortium.
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM
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* DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL
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* INTERNET SOFTWARE CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT,
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* INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING
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* FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
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* NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
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* WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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/* $Id: dbtable.h,v 1.16 2001/01/09 21:52:45 bwelling Exp $ */
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#ifndef DNS_DBTABLE_H
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#define DNS_DBTABLE_H 1
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/*****
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***** Module Info
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*****/
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/*
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* DNS DB Tables
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*
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* XXX <TBS> XXX
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*
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* MP:
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* The module ensures appropriate synchronization of data structures it
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* creates and manipulates.
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*
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* Reliability:
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* No anticipated impact.
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*
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* Resources:
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* None.
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*
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* Security:
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* No anticipated impact.
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*
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* Standards:
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* None.
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*/
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#include <isc/lang.h>
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#include <dns/types.h>
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#define DNS_DBTABLEFIND_NOEXACT 0x01
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ISC_LANG_BEGINDECLS
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isc_result_t
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dns_dbtable_create(isc_mem_t *mctx, dns_rdataclass_t rdclass,
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dns_dbtable_t **dbtablep);
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/*
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* Make a new dbtable of class 'rdclass'
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*
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* Requires:
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* mctx != NULL
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* dbtablep != NULL && *dptablep == NULL
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* 'rdclass' is a valid class
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*
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* Returns:
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* ISC_R_SUCCESS
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* ISC_R_NOMEMORY
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* ISC_R_UNEXPECTED
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*/
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void
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dns_dbtable_attach(dns_dbtable_t *source, dns_dbtable_t **targetp);
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/*
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* Attach '*targetp' to 'source'.
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*
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* Requires:
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*
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* 'source' is a valid dbtable.
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*
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* 'targetp' points to a NULL dns_dbtable_t *.
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*
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* Ensures:
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*
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* *targetp is attached to source.
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*/
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void
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dns_dbtable_detach(dns_dbtable_t **dbtablep);
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/*
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* Detach *dbtablep from its dbtable.
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*
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* Requires:
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*
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* '*dbtablep' points to a valid dbtable.
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*
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* Ensures:
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*
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* *dbtablep is NULL.
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*
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* If '*dbtablep' is the last reference to the dbtable,
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*
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* All resources used by the dbtable will be freed
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*/
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isc_result_t
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dns_dbtable_add(dns_dbtable_t *dbtable, dns_db_t *db);
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/*
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* Add 'db' to 'dbtable'.
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*
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* Requires:
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* 'dbtable' is a valid dbtable.
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*
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* 'db' is a valid database with the same class as 'dbtable'
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*/
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void
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dns_dbtable_remove(dns_dbtable_t *dbtable, dns_db_t *db);
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/*
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* Remove 'db' from 'dbtable'.
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*
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* Requires:
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* 'db' was previously added to 'dbtable'.
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*/
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void
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dns_dbtable_adddefault(dns_dbtable_t *dbtable, dns_db_t *db);
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/*
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* Use 'db' as the result of a dns_dbtable_find() if no better match is
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* available.
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*/
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void
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dns_dbtable_getdefault(dns_dbtable_t *dbtable, dns_db_t **db);
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/*
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* Get the 'db' used as the result of a dns_dbtable_find()
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* if no better match is available.
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*/
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void
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dns_dbtable_removedefault(dns_dbtable_t *dbtable);
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/*
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* Remove the default db from 'dbtable'.
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*/
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isc_result_t
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dns_dbtable_find(dns_dbtable_t *dbtable, dns_name_t *name,
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unsigned int options, dns_db_t **dbp);
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/*
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* Find the deepest match to 'name' in the dbtable, and return it
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*
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* Notes:
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* If the DNS_DBTABLEFIND_NOEXACT option is set, the best partial
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* match (if any) to 'name' will be returned.
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*
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* Returns: ISC_R_SUCCESS on success
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* <something else> no default and match
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*/
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ISC_LANG_ENDDECLS
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#endif /* DNS_DBTABLE_H */
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