projects / thirdparty / systemd.git / blame
| Commit | Line | Data |
|---|---|---|
| faa133f3 LP |
1 | /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
| 2 | ||
| 3 | #pragma once | |
| 4 | ||
| 5 | /*** | |
| 6 | This file is part of systemd. | |
| 7 | ||
| 8 | Copyright 2014 Lennart Poettering | |
| 9 | ||
| 10 | systemd is free software; you can redistribute it and/or modify it | |
| 11 | under the terms of the GNU Lesser General Public License as published by | |
| 12 | the Free Software Foundation; either version 2.1 of the License, or | |
| 13 | (at your option) any later version. | |
| 14 | ||
| 15 | systemd is distributed in the hope that it will be useful, but | |
| 16 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 17 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 18 | Lesser General Public License for more details. | |
| 19 | ||
| 20 | You should have received a copy of the GNU Lesser General Public License | |
| 21 | along with systemd; If not, see <http://www.gnu.org/licenses/>. | |
| 22 | ***/ | |
| 23 | ||
| 24 | typedef struct DnsAnswer DnsAnswer; | |
| 78c6a153 | 25 | typedef struct DnsAnswerItem DnsAnswerItem; |
| faa133f3 LP |
26 | |
| 27 | #include "resolved-dns-rr.h" | |
| 28 | ||
| 78c6a153 LP |
29 | /* A simple array of resource records. We keep track of the |
| 30 | * originating ifindex for each RR where that makes sense, so that we | |
| 31 | * can qualify A and AAAA RRs referring to a local link with the | |
| 32 | * right ifindex. */ | |
| 33 | ||
| 34 | struct DnsAnswerItem { | |
| 35 | DnsResourceRecord *rr; | |
| 36 | int ifindex; | |
| 37 | }; | |
| faa133f3 LP |
38 | |
| 39 | struct DnsAnswer { | |
| 40 | unsigned n_ref; | |
| 41 | unsigned n_rrs, n_allocated; | |
| 78c6a153 | 42 | DnsAnswerItem items[0]; |
| faa133f3 LP |
43 | }; |
| 44 | ||
| 45 | DnsAnswer *dns_answer_new(unsigned n); | |
| 46 | DnsAnswer *dns_answer_ref(DnsAnswer *a); | |
| 47 | DnsAnswer *dns_answer_unref(DnsAnswer *a); | |
| 48 | ||
| 78c6a153 | 49 | int dns_answer_add(DnsAnswer *a, DnsResourceRecord *rr, int ifindex); |
| 57f5ad31 | 50 | int dns_answer_add_soa(DnsAnswer *a, const char *name, uint32_t ttl); |
| 7e8e0422 | 51 | int dns_answer_contains(DnsAnswer *a, DnsResourceKey *key); |
| 5eefe544 | 52 | int dns_answer_match_soa(DnsResourceKey *key, DnsResourceKey *soa); |
| 7e8e0422 | 53 | int dns_answer_find_soa(DnsAnswer *a, DnsResourceKey *key, DnsResourceRecord **ret); |
| faa133f3 | 54 | |
| 934e9b10 | 55 | DnsAnswer *dns_answer_merge(DnsAnswer *a, DnsAnswer *b); |
| af93291c | 56 | void dns_answer_order_by_scope(DnsAnswer *a, bool prefer_link_local); |
| 934e9b10 | 57 | |
| 78c6a153 LP |
58 | int dns_answer_reserve(DnsAnswer **a, unsigned n_free); |
| 59 | ||
| faa133f3 | 60 | DEFINE_TRIVIAL_CLEANUP_FUNC(DnsAnswer*, dns_answer_unref); |
| 45ec7efb LP |
61 | |
| 62 | #define DNS_ANSWER_FOREACH(kk, a) \ | |
| 63 | for (unsigned _i = ({ \ | |
| 64 | (kk) = ((a) && (a)->n_rrs > 0 ? (a)->items[0].rr : NULL); \ | |
| 65 | 0; \ | |
| 66 | }); \ | |
| 67 | (a) && ((_i) < (a)->n_rrs); \ | |
| 68 | _i++, (kk) = (_i < (a)->n_rrs ? (a)->items[_i].rr : NULL)) | |
| 69 | ||
| 70 | #define DNS_ANSWER_FOREACH_IFINDEX(kk, ifindex, a) \ | |
| 71 | for (unsigned _i = ({ \ | |
| 72 | (kk) = ((a) && (a)->n_rrs > 0 ? (a)->items[0].rr : NULL); \ | |
| 73 | (ifindex) = ((a) && (a)->n_rrs > 0 ? (a)->items[0].ifindex : 0); \ | |
| 74 | 0; \ | |
| 75 | }); \ | |
| 76 | (a) && ((_i) < (a)->n_rrs); \ | |
| 77 | _i++, (kk) = (_i < (a)->n_rrs ? (a)->items[_i].rr : NULL), (ifindex) = (_i < (a)->n_rrs ? (a)->items[_i].ifindex : 0)) |