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/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
/***
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 "resolved-dns-answer.h"
DnsAnswer *dns_answer_new(unsigned n) {
DnsAnswer *a;
assert(n > 0);
a = malloc0(offsetof(DnsAnswer, rrs) + sizeof(DnsResourceRecord*) * n);
if (!a)
return NULL;
a->n_ref = 1;
a->n_allocated = n;
return a;
}
DnsAnswer *dns_answer_ref(DnsAnswer *a) {
if (!a)
return NULL;
assert(a->n_ref > 0);
a->n_ref++;
return a;
}
DnsAnswer *dns_answer_unref(DnsAnswer *a) {
if (!a)
return NULL;
assert(a->n_ref > 0);
if (a->n_ref == 1) {
unsigned i;
for (i = 0; i < a->n_rrs; i++)
dns_resource_record_unref(a->rrs[i]);
free(a);
} else
a->n_ref--;
return NULL;
}
int dns_answer_add(DnsAnswer *a, DnsResourceRecord *rr) {
assert(a);
assert(rr);
if (a->n_rrs >= a->n_allocated)
return -ENOSPC;
a->rrs[a->n_rrs++] = dns_resource_record_ref(rr);
return 0;
}
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