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/* SPDX-License-Identifier: LGPL-2.1-or-later */
#pragma once
typedef struct DnsQuestion DnsQuestion;
typedef struct DnsQuestionItem DnsQuestionItem;
#include "macro.h"
#include "resolved-dns-rr.h"
/* A simple array of resource keys */
typedef enum DnsQuestionFlags {
DNS_QUESTION_WANTS_UNICAST_REPLY = 1 << 0, /* For mDNS: sender is willing to accept unicast replies */
} DnsQuestionFlags;
struct DnsQuestionItem {
DnsResourceKey *key;
DnsQuestionFlags flags;
};
struct DnsQuestion {
unsigned n_ref;
size_t n_keys, n_allocated;
DnsQuestionItem items[];
};
DnsQuestion *dns_question_new(size_t n);
DnsQuestion *dns_question_ref(DnsQuestion *q);
DnsQuestion *dns_question_unref(DnsQuestion *q);
int dns_question_new_address(DnsQuestion **ret, int family, const char *name, bool convert_idna);
int dns_question_new_reverse(DnsQuestion **ret, int family, const union in_addr_union *a);
int dns_question_new_service(DnsQuestion **ret, const char *service, const char *type, const char *domain, bool with_txt, bool convert_idna);
int dns_question_add_raw(DnsQuestion *q, DnsResourceKey *key, DnsQuestionFlags flags);
int dns_question_add(DnsQuestion *q, DnsResourceKey *key, DnsQuestionFlags flags);
int dns_question_matches_rr(DnsQuestion *q, DnsResourceRecord *rr, const char *search_domain);
int dns_question_matches_cname_or_dname(DnsQuestion *q, DnsResourceRecord *rr, const char* search_domain);
int dns_question_is_valid_for_query(DnsQuestion *q);
int dns_question_contains_key(DnsQuestion *q, const DnsResourceKey *k);
int dns_question_is_equal(DnsQuestion *a, DnsQuestion *b);
int dns_question_cname_redirect(DnsQuestion *q, const DnsResourceRecord *cname, DnsQuestion **ret);
void dns_question_dump(DnsQuestion *q, FILE *f);
const char* dns_question_first_name(DnsQuestion *q);
static inline DnsResourceKey *dns_question_first_key(DnsQuestion *q) {
return (q && q->n_keys > 0) ? q->items[0].key : NULL;
}
static inline size_t dns_question_size(DnsQuestion *q) {
return q ? q->n_keys : 0;
}
static inline bool dns_question_isempty(DnsQuestion *q) {
return dns_question_size(q) <= 0;
}
int dns_question_merge(DnsQuestion *a, DnsQuestion *b, DnsQuestion **ret);
DEFINE_TRIVIAL_CLEANUP_FUNC(DnsQuestion*, dns_question_unref);
#define _DNS_QUESTION_FOREACH(u, k, q) \
for (size_t UNIQ_T(i, u) = ({ \
(k) = ((q) && (q)->n_keys > 0) ? (q)->items[0].key : NULL; \
0; \
}); \
(q) && (UNIQ_T(i, u) < (q)->n_keys); \
UNIQ_T(i, u)++, (k) = (UNIQ_T(i, u) < (q)->n_keys ? (q)->items[UNIQ_T(i, u)].key : NULL))
#define DNS_QUESTION_FOREACH(key, q) _DNS_QUESTION_FOREACH(UNIQ, key, q)
#define _DNS_QUESTION_FOREACH_ITEM(u, item, q) \
for (size_t UNIQ_T(i, u) = ({ \
(item) = dns_question_isempty(q) ? NULL : (q)->items; \
0; \
}); \
UNIQ_T(i, u) < dns_question_size(q); \
UNIQ_T(i, u)++, (item) = (UNIQ_T(i, u) < dns_question_size(q) ? (q)->items + UNIQ_T(i, u) : NULL))
#define DNS_QUESTION_FOREACH_ITEM(item, q) _DNS_QUESTION_FOREACH_ITEM(UNIQ, item, q)
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