75 lines
2.9 KiB
C
75 lines
2.9 KiB
C
/* SPDX-License-Identifier: LGPL-2.1+ */
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#pragma once
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/***
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This file is part of systemd.
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Copyright 2014 Lennart Poettering
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systemd is free software; you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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systemd is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with systemd; If not, see <http://www.gnu.org/licenses/>.
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***/
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typedef struct DnsQuestion DnsQuestion;
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#include "macro.h"
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#include "resolved-dns-rr.h"
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/* A simple array of resource keys */
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struct DnsQuestion {
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unsigned n_ref;
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unsigned n_keys, n_allocated;
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DnsResourceKey* keys[0];
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};
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DnsQuestion *dns_question_new(unsigned n);
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DnsQuestion *dns_question_ref(DnsQuestion *q);
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DnsQuestion *dns_question_unref(DnsQuestion *q);
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int dns_question_new_address(DnsQuestion **ret, int family, const char *name, bool convert_idna);
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int dns_question_new_reverse(DnsQuestion **ret, int family, const union in_addr_union *a);
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int dns_question_new_service(DnsQuestion **ret, const char *service, const char *type, const char *domain, bool with_txt, bool convert_idna);
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int dns_question_add(DnsQuestion *q, DnsResourceKey *key);
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int dns_question_matches_rr(DnsQuestion *q, DnsResourceRecord *rr, const char *search_domain);
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int dns_question_matches_cname_or_dname(DnsQuestion *q, DnsResourceRecord *rr, const char* search_domain);
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int dns_question_is_valid_for_query(DnsQuestion *q);
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int dns_question_contains(DnsQuestion *a, const DnsResourceKey *k);
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int dns_question_is_equal(DnsQuestion *a, DnsQuestion *b);
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int dns_question_cname_redirect(DnsQuestion *q, const DnsResourceRecord *cname, DnsQuestion **ret);
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const char *dns_question_first_name(DnsQuestion *q);
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static inline unsigned dns_question_size(DnsQuestion *q) {
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return q ? q->n_keys : 0;
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}
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static inline bool dns_question_isempty(DnsQuestion *q) {
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return dns_question_size(q) <= 0;
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}
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DEFINE_TRIVIAL_CLEANUP_FUNC(DnsQuestion*, dns_question_unref);
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#define _DNS_QUESTION_FOREACH(u, key, q) \
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for (unsigned UNIQ_T(i, u) = ({ \
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(key) = ((q) && (q)->n_keys > 0) ? (q)->keys[0] : NULL; \
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0; \
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}); \
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(q) && (UNIQ_T(i, u) < (q)->n_keys); \
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UNIQ_T(i, u)++, (key) = (UNIQ_T(i, u) < (q)->n_keys ? (q)->keys[UNIQ_T(i, u)] : NULL))
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#define DNS_QUESTION_FOREACH(key, q) _DNS_QUESTION_FOREACH(UNIQ, key, q)
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