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-rw-r--r--src/resolve/resolved-dns-answer.c76
1 files changed, 76 insertions, 0 deletions
diff --git a/src/resolve/resolved-dns-answer.c b/src/resolve/resolved-dns-answer.c
new file mode 100644
index 0000000000..fbc282550e
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+++ b/src/resolve/resolved-dns-answer.c
@@ -0,0 +1,76 @@
+/*-*- 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;
+}