99 lines
2.5 KiB
C
99 lines
2.5 KiB
C
/*
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* Copyright (C) 2000 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: forward.h,v 1.1 2000/08/24 22:15:36 bwelling Exp $ */
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#ifndef DNS_FORWARD_H
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#define DNS_FORWARD_H 1
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#include <isc/lang.h>
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#include <isc/result.h>
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#include <dns/types.h>
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ISC_LANG_BEGINDECLS
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struct dns_forwarders {
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isc_sockaddrlist_t addrs;
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dns_fwdpolicy_t fwdpolicy;
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};
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isc_result_t
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dns_fwdtable_create(isc_mem_t *mctx, dns_fwdtable_t **fwdtablep);
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/*
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* Creates a new forwarding table.
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*
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* Requires:
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* mctx is a valid memory context.
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* fwdtablep != NULL && *fwdtablep == NULL
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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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*/
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isc_result_t
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dns_fwdtable_add(dns_fwdtable_t *fwdtable, dns_name_t *name,
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isc_sockaddrlist_t *addrs, dns_fwdpolicy_t policy);
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/*
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* Adds an entry to the forwarding table. The entry associates
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* a domain with a list of forwarders and a forwarding policy. The
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* addrs list is copied if not empty, so the caller should free its copy.
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*
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* Requires:
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* fwdtable is a valid forwarding table.
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* name is a valid name
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* addrs is a valid list of sockaddrs, which may be empty.
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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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*/
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isc_result_t
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dns_fwdtable_find(dns_fwdtable_t *fwdtable, dns_name_t *name,
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dns_forwarders_t **forwardersp);
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/*
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* Finds a domain in the forwarding table. The closest matching parent
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* domain is returned.
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*
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* Requires:
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* fwdtable is a valid forwarding table.
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* name is a valid name
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* forwardersp != NULL && *forwardersp == NULL
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*
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* Returns:
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* ISC_R_SUCCESS
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* ISC_R_NOTFOUND
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*/
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void
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dns_fwdtable_destroy(dns_fwdtable_t **fwdtablep);
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/*
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* Destroys a forwarding table.
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*
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* Requires:
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* fwtablep != NULL && *fwtablep != NULL
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*
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* Ensures:
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* all memory associated with the forwarding table is freed.
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*/
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ISC_LANG_ENDDECLS
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#endif /* DNS_FORWARD_H */
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