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87 lines
3.7 KiB
C
87 lines
3.7 KiB
C
/* SPDX-License-Identifier: LGPL-2.1-or-later */
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#pragma once
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#include "sd-json.h"
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#include "forward.h"
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#define DNS_QUESTION_ITEMS_MAX 128U
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/* A simple array of resource keys */
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typedef enum DnsQuestionFlags {
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DNS_QUESTION_WANTS_UNICAST_REPLY = 1 << 0, /* For mDNS: sender is willing to accept unicast replies */
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} DnsQuestionFlags;
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typedef struct DnsQuestionItem {
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DnsResourceKey *key;
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DnsQuestionFlags flags;
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} DnsQuestionItem;
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typedef struct DnsQuestion {
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unsigned n_ref;
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size_t n_keys, n_allocated;
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DnsQuestionItem items[];
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} DnsQuestion;
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DnsQuestion *dns_question_new(size_t n);
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DECLARE_TRIVIAL_REF_UNREF_FUNC(DnsQuestion, dns_question);
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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_new_service_pointer(DnsQuestion **ret, const char *type, const char *domain, bool convert_idna);
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int dns_question_add_raw(DnsQuestion *q, DnsResourceKey *key, DnsQuestionFlags flags);
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int dns_question_add(DnsQuestion *q, DnsResourceKey *key, DnsQuestionFlags flags);
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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_key(DnsQuestion *q, 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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void dns_question_dump(DnsQuestion *q, FILE *f);
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const char* dns_question_first_name(DnsQuestion *q);
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static inline DnsResourceKey *dns_question_first_key(DnsQuestion *q) {
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return (q && q->n_keys > 0) ? q->items[0].key : NULL;
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}
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static inline size_t 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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int dns_question_merge(DnsQuestion *a, DnsQuestion *b, DnsQuestion **ret);
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int dns_json_dispatch_question(const char *name, sd_json_variant *variant, sd_json_dispatch_flags_t flags, void *userdata);
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DEFINE_TRIVIAL_CLEANUP_FUNC(DnsQuestion*, dns_question_unref);
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#define _DNS_QUESTION_FOREACH(u, k, q) \
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for (size_t UNIQ_T(i, u) = ({ \
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(k) = ((q) && (q)->n_keys > 0) ? (q)->items[0].key : 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)++, (k) = (UNIQ_T(i, u) < (q)->n_keys ? (q)->items[UNIQ_T(i, u)].key : NULL))
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#define DNS_QUESTION_FOREACH(key, q) _DNS_QUESTION_FOREACH(UNIQ, key, q)
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#define _DNS_QUESTION_FOREACH_ITEM(u, item, q) \
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for (size_t UNIQ_T(i, u) = ({ \
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(item) = dns_question_isempty(q) ? NULL : (q)->items; \
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0; \
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}); \
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UNIQ_T(i, u) < dns_question_size(q); \
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UNIQ_T(i, u)++, (item) = (UNIQ_T(i, u) < dns_question_size(q) ? (q)->items + UNIQ_T(i, u) : NULL))
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#define DNS_QUESTION_FOREACH_ITEM(item, q) _DNS_QUESTION_FOREACH_ITEM(UNIQ, item, q)
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