+static void socket_event(AvahiWatch *w, int fd, AvahiWatchEvent events, void *userdata) {
+ AvahiServer *s = userdata;
+ AvahiAddress dest;
+ AvahiDnsPacket *p;
+ AvahiIfIndex iface;
+ uint8_t ttl;
+ struct sockaddr_in sa;
+ struct sockaddr_in6 sa6;
+
+ assert(w);
+ assert(fd >= 0);
+
+ if (events & AVAHI_WATCH_IN) {
+
+ if (fd == s->fd_ipv4) {
+ dest.proto = AVAHI_PROTO_INET;
+ if ((p = avahi_recv_dns_packet_ipv4(s->fd_ipv4, &sa, &dest.data.ipv4, &iface, &ttl))) {
+ dispatch_packet(s, p, (struct sockaddr*) &sa, &dest, iface, ttl);
+ avahi_dns_packet_free(p);
+ }
+ } else if (fd == s->fd_ipv6) {
+ dest.proto = AVAHI_PROTO_INET6;
+
+ if ((p = avahi_recv_dns_packet_ipv6(s->fd_ipv6, &sa6, &dest.data.ipv6, &iface, &ttl))) {
+ dispatch_packet(s, p, (struct sockaddr*) &sa6, &dest, iface, ttl);
+ avahi_dns_packet_free(p);
+ }
+ } else if (fd == s->fd_legacy_unicast_ipv4) {
+ dest.proto = AVAHI_PROTO_INET;
+
+ if ((p = avahi_recv_dns_packet_ipv4(s->fd_legacy_unicast_ipv4, &sa, &dest.data.ipv4, &iface, &ttl))) {
+ dispatch_legacy_unicast_packet(s, p, (struct sockaddr*) &sa, iface, ttl);
+ avahi_dns_packet_free(p);
+ }
+ } else if (fd == s->fd_legacy_unicast_ipv6) {
+ dest.proto = AVAHI_PROTO_INET6;
+
+ if ((p = avahi_recv_dns_packet_ipv6(s->fd_legacy_unicast_ipv6, &sa6, &dest.data.ipv6, &iface, &ttl))) {
+ dispatch_legacy_unicast_packet(s, p, (struct sockaddr*) &sa6, iface, ttl);
+ avahi_dns_packet_free(p);
+ }
+ }
+
+ cleanup_dead(s);
+ } else {
+ assert(0);
+ }
+}
+
+static void server_set_state(AvahiServer *s, AvahiServerState state) {
+ assert(s);
+
+ if (s->state == state)
+ return;
+
+ s->state = state;
+
+ if (s->callback)
+ s->callback(s, state, s->userdata);
+}
+
+static void withdraw_host_rrs(AvahiServer *s) {
+ assert(s);
+
+ if (s->hinfo_entry_group)
+ avahi_s_entry_group_reset(s->hinfo_entry_group);
+
+ if (s->browse_domain_entry_group)
+ avahi_s_entry_group_reset(s->browse_domain_entry_group);
+
+ avahi_update_host_rrs(s->monitor, 1);
+ s->n_host_rr_pending = 0;
+}
+
+void avahi_server_decrease_host_rr_pending(AvahiServer *s) {
+ assert(s);
+
+ assert(s->n_host_rr_pending > 0);
+
+ if (--s->n_host_rr_pending == 0)
+ server_set_state(s, AVAHI_SERVER_RUNNING);
+}
+
+void avahi_server_increase_host_rr_pending(AvahiServer *s) {
+ assert(s);
+
+ s->n_host_rr_pending ++;
+}
+
+void avahi_host_rr_entry_group_callback(AvahiServer *s, AvahiSEntryGroup *g, AvahiEntryGroupState state, void *userdata) {
+ assert(s);
+ assert(g);
+
+ if (state == AVAHI_ENTRY_GROUP_REGISTERING &&
+ s->state == AVAHI_SERVER_REGISTERING)
+ avahi_server_increase_host_rr_pending(s);
+
+ else if (state == AVAHI_ENTRY_GROUP_COLLISION &&
+ (s->state == AVAHI_SERVER_REGISTERING || s->state == AVAHI_SERVER_RUNNING)) {
+ withdraw_host_rrs(s);
+ server_set_state(s, AVAHI_SERVER_COLLISION);
+
+ } else if (state == AVAHI_ENTRY_GROUP_ESTABLISHED &&
+ s->state == AVAHI_SERVER_REGISTERING)
+ avahi_server_decrease_host_rr_pending(s);
+}
+
+static void register_hinfo(AvahiServer *s) {
+ struct utsname utsname;
+ AvahiRecord *r;
+
+ assert(s);