DnsServer* dns_server_free(DnsServer *s) {
if (!s)
return NULL;
if (s->manager) {
if (s->type == DNS_SERVER_LINK)
LIST_REMOVE(servers, s->link->dns_servers, s);
else if (s->type == DNS_SERVER_SYSTEM)
LIST_REMOVE(servers, s->manager->dns_servers, s);
else if (s->type == DNS_SERVER_FALLBACK)
LIST_REMOVE(servers, s->manager->fallback_dns_servers, s);
else
assert_not_reached("Unknown server type");
if (s->manager->current_dns_server == s)
manager_set_dns_server(s->manager, NULL);
}
if (s->link && s->link->current_dns_server == s)
link_set_dns_server(s->link, NULL);
free(s);
return NULL;
}
static DnsServer* dns_server_free(DnsServer *s) {
if (!s)
return NULL;
if (s->link && s->link->current_dns_server == s)
link_set_dns_server(s->link, NULL);
if (s->manager && s->manager->current_dns_server == s)
manager_set_dns_server(s->manager, NULL);
free(s);
return NULL;
}
void dns_server_unlink(DnsServer *s) {
assert(s);
assert(s->manager);
/* This removes the specified server from the linked list of
* servers, but any server might still stay around if it has
* refs, for example from an ongoing transaction. */
if (!s->linked)
return;
switch (s->type) {
case DNS_SERVER_LINK:
assert(s->link);
assert(s->link->n_dns_servers > 0);
LIST_REMOVE(servers, s->link->dns_servers, s);
s->link->n_dns_servers--;
break;
case DNS_SERVER_SYSTEM:
assert(s->manager->n_dns_servers > 0);
LIST_REMOVE(servers, s->manager->dns_servers, s);
s->manager->n_dns_servers--;
break;
case DNS_SERVER_FALLBACK:
assert(s->manager->n_dns_servers > 0);
LIST_REMOVE(servers, s->manager->fallback_dns_servers, s);
s->manager->n_dns_servers--;
break;
}
s->linked = false;
if (s->link && s->link->current_dns_server == s)
link_set_dns_server(s->link, NULL);
if (s->manager->current_dns_server == s)
manager_set_dns_server(s->manager, NULL);
dns_server_unref(s);
}
