107     AvahiWideAreaLookup *l;  in find_lookup()  local
112     if (!(l = avahi_hashmap_lookup(e->lookups_by_id, &i)))  in find_lookup()
115     assert(l->id == id);  in find_lookup()
117     if (l->dead)  in find_lookup()
120     return l;  in find_lookup()
123 static int send_to_dns_server(AvahiWideAreaLookup *l, AvahiDnsPacket *p) {  in send_to_dns_server()  argument
126     assert(l);  in send_to_dns_server()
129     if (l->engine->n_dns_servers <= 0)  in send_to_dns_server()
132     assert(l->engine->current_dns_server < l->engine->n_dns_servers);  in send_to_dns_server()
134     a = &l->engine->dns_servers[l->engine->current_dns_server];  in send_to_dns_server()
135     l->dns_server_used = *a;  in send_to_dns_server()
139         if (l->engine->fd_ipv4 < 0)  in send_to_dns_server()
142 …return avahi_send_dns_packet_ipv4(l->engine->fd_ipv4, AVAHI_IF_UNSPEC, p, NULL, &a->data.ipv4, AVA…  in send_to_dns_server()
147         if (l->engine->fd_ipv6 < 0)  in send_to_dns_server()
150 …return avahi_send_dns_packet_ipv6(l->engine->fd_ipv6, AVAHI_IF_UNSPEC, p, NULL, &a->data.ipv6, AVA…  in send_to_dns_server()
163 static void lookup_stop(AvahiWideAreaLookup *l) {  in lookup_stop()  argument
164     assert(l);  in lookup_stop()
166     l->callback = NULL;  in lookup_stop()
168     if (l->time_event) {  in lookup_stop()
169         avahi_time_event_free(l->time_event);  in lookup_stop()
170         l->time_event = NULL;  in lookup_stop()
175     AvahiWideAreaLookup *l = userdata;  in sender_timeout_callback()  local
178     assert(l);  in sender_timeout_callback()
181 …if (l->n_send >= 3 && avahi_address_cmp(&l->engine->dns_servers[l->engine->current_dns_server], &l…  in sender_timeout_callback()
182         next_dns_server(l->engine);  in sender_timeout_callback()
184 …if (avahi_address_cmp(&l->engine->dns_servers[l->engine->current_dns_server], &l->dns_server_used)…  in sender_timeout_callback()
186             l->n_send = 1000;  in sender_timeout_callback()
189     if (l->n_send >= 6) {  in sender_timeout_callback()
191         avahi_server_set_errno(l->engine->server, AVAHI_ERR_TIMEOUT);  in sender_timeout_callback()
192 …   l->callback(l->engine, AVAHI_BROWSER_FAILURE, AVAHI_LOOKUP_RESULT_WIDE_AREA, NULL, l->userdata);  in sender_timeout_callback()
193         lookup_stop(l);  in sender_timeout_callback()
197     assert(l->packet);  in sender_timeout_callback()
198     send_to_dns_server(l, l->packet);  in sender_timeout_callback()
199     l->n_send++;  in sender_timeout_callback()
211     AvahiWideAreaLookup *l, *t;  in avahi_wide_area_lookup_new()  local
219     l = avahi_new(AvahiWideAreaLookup, 1);  in avahi_wide_area_lookup_new()
220     l->engine = e;  in avahi_wide_area_lookup_new()
221     l->dead = 0;  in avahi_wide_area_lookup_new()
222     l->key = avahi_key_ref(key);  in avahi_wide_area_lookup_new()
223     l->cname_key = avahi_key_new_cname(l->key);  in avahi_wide_area_lookup_new()
224     l->callback = callback;  in avahi_wide_area_lookup_new()
225     l->userdata = userdata;  in avahi_wide_area_lookup_new()
234     l->id = e->next_id++;  in avahi_wide_area_lookup_new()
237     l->packet = avahi_dns_packet_new(0);  in avahi_wide_area_lookup_new()
239     avahi_dns_packet_set_field(l->packet, AVAHI_DNS_FIELD_ID, (uint16_t) l->id);  in avahi_wide_area_lookup_new()
240 …avahi_dns_packet_set_field(l->packet, AVAHI_DNS_FIELD_FLAGS, AVAHI_DNS_FLAGS(0, 0, 0, 0, 1, 0, 0, …  in avahi_wide_area_lookup_new()
242     p = avahi_dns_packet_append_key(l->packet, key, 0);  in avahi_wide_area_lookup_new()
245     avahi_dns_packet_set_field(l->packet, AVAHI_DNS_FIELD_QDCOUNT, 1);  in avahi_wide_area_lookup_new()
247     if (send_to_dns_server(l, l->packet) < 0) {  in avahi_wide_area_lookup_new()
249         avahi_dns_packet_free(l->packet);  in avahi_wide_area_lookup_new()
250         avahi_key_unref(l->key);  in avahi_wide_area_lookup_new()
251         if (l->cname_key)  in avahi_wide_area_lookup_new()
252             avahi_key_unref(l->cname_key);  in avahi_wide_area_lookup_new()
253         avahi_free(l);  in avahi_wide_area_lookup_new()
257     l->n_send = 1;  in avahi_wide_area_lookup_new()
259 …l->time_event = avahi_time_event_new(e->server->time_event_queue, avahi_elapse_time(&tv, 500, 0), …  in avahi_wide_area_lookup_new()
261     avahi_hashmap_insert(e->lookups_by_id, &l->id, l);  in avahi_wide_area_lookup_new()
263     t = avahi_hashmap_lookup(e->lookups_by_key, l->key);  in avahi_wide_area_lookup_new()
264     AVAHI_LLIST_PREPEND(AvahiWideAreaLookup, by_key, t, l);  in avahi_wide_area_lookup_new()
265     avahi_hashmap_replace(e->lookups_by_key, avahi_key_ref(l->key), t);  in avahi_wide_area_lookup_new()
267     AVAHI_LLIST_PREPEND(AvahiWideAreaLookup, lookups, e->lookups, l);  in avahi_wide_area_lookup_new()
269     return l;  in avahi_wide_area_lookup_new()
272 static void lookup_destroy(AvahiWideAreaLookup *l) {  in lookup_destroy()  argument
274     assert(l);  in lookup_destroy()
276     lookup_stop(l);  in lookup_destroy()
278     t = avahi_hashmap_lookup(l->engine->lookups_by_key, l->key);  in lookup_destroy()
279     AVAHI_LLIST_REMOVE(AvahiWideAreaLookup, by_key, t, l);  in lookup_destroy()
281         avahi_hashmap_replace(l->engine->lookups_by_key, avahi_key_ref(l->key), t);  in lookup_destroy()
283         avahi_hashmap_remove(l->engine->lookups_by_key, l->key);  in lookup_destroy()
285     AVAHI_LLIST_REMOVE(AvahiWideAreaLookup, lookups, l->engine->lookups, l);  in lookup_destroy()
287     avahi_hashmap_remove(l->engine->lookups_by_id, &l->id);  in lookup_destroy()
288     avahi_dns_packet_free(l->packet);  in lookup_destroy()
290     if (l->key)  in lookup_destroy()
291         avahi_key_unref(l->key);  in lookup_destroy()
293     if (l->cname_key)  in lookup_destroy()
294         avahi_key_unref(l->cname_key);  in lookup_destroy()
296     avahi_free(l);  in lookup_destroy()
299 void avahi_wide_area_lookup_free(AvahiWideAreaLookup *l) {  in avahi_wide_area_lookup_free()  argument
300     assert(l);  in avahi_wide_area_lookup_free()
302     if (l->dead)  in avahi_wide_area_lookup_free()
305     l->dead = 1;  in avahi_wide_area_lookup_free()
306     l->engine->cleanup_dead = 1;  in avahi_wide_area_lookup_free()
307     lookup_stop(l);  in avahi_wide_area_lookup_free()
311     AvahiWideAreaLookup *l, *n;  in avahi_wide_area_cleanup()  local
317         for (l = e->lookups; l; l = n) {  in avahi_wide_area_cleanup()
318             n = l->lookups_next;  in avahi_wide_area_cleanup()
320             if (l->dead)  in avahi_wide_area_cleanup()
321                 lookup_destroy(l);  in avahi_wide_area_cleanup()
371     AvahiWideAreaLookup *l;  in run_callbacks()  local
376     for (l = avahi_hashmap_lookup(e->lookups_by_key, r->key); l; l = l->by_key_next) {  in run_callbacks()
377         if (l->dead || !l->callback)  in run_callbacks()
380         l->callback(e, AVAHI_BROWSER_NEW, AVAHI_LOOKUP_RESULT_WIDE_AREA, r, l->userdata);  in run_callbacks()
386         for (l = e->lookups; l; l = l->lookups_next) {  in run_callbacks()
389             if (l->dead || !l->callback)  in run_callbacks()
392             if ((key = avahi_key_new_cname(l->key))) {  in run_callbacks()
394 …                  l->callback(e, AVAHI_BROWSER_NEW, AVAHI_LOOKUP_RESULT_WIDE_AREA, r, l->userdata);  in run_callbacks()
481     AvahiWideAreaLookup *l = NULL;  in handle_packet()  local
496     if (!(l = find_lookup(e, avahi_dns_packet_get_field(p, AVAHI_DNS_FIELD_ID))) || l->dead)  in handle_packet()
545     if (l && !l->dead) {  in handle_packet()
546         if (l->callback)  in handle_packet()
547             l->callback(e, final_event, AVAHI_LOOKUP_RESULT_WIDE_AREA, NULL, l->userdata);  in handle_packet()
549         lookup_stop(l);  in handle_packet()