diff options
Diffstat (limited to 'src/grp-resolve/libbasic-dns/include/basic-dns/resolved-dns-question.h')
-rw-r--r-- | src/grp-resolve/libbasic-dns/include/basic-dns/resolved-dns-question.h | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/src/grp-resolve/libbasic-dns/include/basic-dns/resolved-dns-question.h b/src/grp-resolve/libbasic-dns/include/basic-dns/resolved-dns-question.h new file mode 100644 index 0000000000..fb1b2d2410 --- /dev/null +++ b/src/grp-resolve/libbasic-dns/include/basic-dns/resolved-dns-question.h @@ -0,0 +1,74 @@ +#pragma once + +/*** + This file is part of systemd. + + Copyright 2014 Lennart Poettering + + systemd is free software; you can redistribute it and/or modify it + under the terms of the GNU Lesser General Public License as published by + the Free Software Foundation; either version 2.1 of the License, or + (at your option) any later version. + + systemd is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with systemd; If not, see <http://www.gnu.org/licenses/>. +***/ + +#include "systemd-basic/macro.h" + +typedef struct DnsQuestion DnsQuestion; + +#include "resolved-dns-rr.h" + +/* A simple array of resource keys */ + +struct DnsQuestion { + unsigned n_ref; + unsigned n_keys, n_allocated; + DnsResourceKey* keys[0]; +}; + +DnsQuestion *dns_question_new(unsigned 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(DnsQuestion *q, DnsResourceKey *key); + +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(DnsQuestion *a, const DnsResourceKey *k); +int dns_question_is_equal(DnsQuestion *a, DnsQuestion *b); + +int dns_question_cname_redirect(DnsQuestion *q, const DnsResourceRecord *cname, DnsQuestion **ret); + +const char *dns_question_first_name(DnsQuestion *q); + +static inline unsigned 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; +} + +DEFINE_TRIVIAL_CLEANUP_FUNC(DnsQuestion*, dns_question_unref); + +#define _DNS_QUESTION_FOREACH(u, key, q) \ + for (unsigned UNIQ_T(i, u) = ({ \ + (key) = ((q) && (q)->n_keys > 0) ? (q)->keys[0] : NULL; \ + 0; \ + }); \ + (q) && (UNIQ_T(i, u) < (q)->n_keys); \ + UNIQ_T(i, u)++, (key) = (UNIQ_T(i, u) < (q)->n_keys ? (q)->keys[UNIQ_T(i, u)] : NULL)) + +#define DNS_QUESTION_FOREACH(key, q) _DNS_QUESTION_FOREACH(UNIQ, key, q) |