+ c->state = CLIENT_DEAD;
+}
+
+static void dns_server_browser_callback(
+ AVAHI_GCC_UNUSED AvahiSDNSServerBrowser *b,
+ AvahiIfIndex interface,
+ AvahiProtocol protocol,
+ AvahiBrowserEvent event,
+ AVAHI_GCC_UNUSED const char *host_name,
+ const AvahiAddress *a,
+ uint16_t port,
+ AVAHI_GCC_UNUSED AvahiLookupResultFlags flags,
+ void* userdata) {
+
+ Client *c = userdata;
+ char t[AVAHI_ADDRESS_STR_MAX];
+
+ assert(c);
+
+ if (!a)
+ return;
+
+ switch (event) {
+ case AVAHI_BROWSER_FAILURE:
+ client_output_printf(c, "%+i %s\n", avahi_server_errno(avahi_server), avahi_strerror(avahi_server_errno(avahi_server)));
+ c->state = CLIENT_DEAD;
+ break;
+
+ case AVAHI_BROWSER_ALL_FOR_NOW:
+ case AVAHI_BROWSER_CACHE_EXHAUSTED:
+ break;
+
+ case AVAHI_BROWSER_NEW:
+ case AVAHI_BROWSER_REMOVE:
+
+ avahi_address_snprint(t, sizeof(t), a);
+ client_output_printf(c, "%c %i %u %s %u\n", event == AVAHI_BROWSER_NEW ? '>' : '<', interface, protocol, t, port);
+ break;
+ }
+}
+
+static void handle_line(Client *c, const char *s) {
+ char cmd[64], arg[64];
+ int n_args;
+
+ assert(c);
+ assert(s);
+
+ if (c->state != CLIENT_IDLE)
+ return;
+
+ if ((n_args = sscanf(s, "%63s %63s", cmd, arg)) < 1 ) {
+ client_output_printf(c, "%+i Failed to parse command, try \"HELP\".\n", AVAHI_ERR_INVALID_OPERATION);
+ c->state = CLIENT_DEAD;
+ return;
+ }
+
+ if (strcmp(cmd, "HELP") == 0) {
+ client_output_printf(c,
+ "+ Available commands are:\n"
+ "+ RESOLVE-HOSTNAME <hostname>\n"
+ "+ RESOLVE-HOSTNAME-IPV6 <hostname>\n"
+ "+ RESOLVE-HOSTNAME-IPV4 <hostname>\n"
+ "+ RESOLVE-ADDRESS <address>\n"
+ "+ BROWSE-DNS-SERVERS\n"
+ "+ BROWSE-DNS-SERVERS-IPV4\n"
+ "+ BROWSE-DNS-SERVERS-IPV6\n");
+ c->state = CLIENT_DEAD; }
+ else if (strcmp(cmd, "FUCK") == 0 && n_args == 1) {
+ client_output_printf(c, "+ FUCK: Go fuck yourself!\n");
+ c->state = CLIENT_DEAD;
+ } else if (strcmp(cmd, "RESOLVE-HOSTNAME-IPV4") == 0 && n_args == 2) {
+ c->state = CLIENT_RESOLVE_HOSTNAME;
+ if (!(c->host_name_resolver = avahi_s_host_name_resolver_new(avahi_server, AVAHI_IF_UNSPEC, AVAHI_PROTO_UNSPEC, arg, c->afquery = AVAHI_PROTO_INET, AVAHI_LOOKUP_USE_MULTICAST, host_name_resolver_callback, c)))
+ goto fail;
+
+ avahi_log_debug(__FILE__": Got %s request for '%s'.", cmd, arg);
+ } else if (strcmp(cmd, "RESOLVE-HOSTNAME-IPV6") == 0 && n_args == 2) {
+ c->state = CLIENT_RESOLVE_HOSTNAME;
+ if (!(c->host_name_resolver = avahi_s_host_name_resolver_new(avahi_server, AVAHI_IF_UNSPEC, AVAHI_PROTO_UNSPEC, arg, c->afquery = AVAHI_PROTO_INET6, AVAHI_LOOKUP_USE_MULTICAST, host_name_resolver_callback, c)))
+ goto fail;
+
+ avahi_log_debug(__FILE__": Got %s request for '%s'.", cmd, arg);
+ } else if (strcmp(cmd, "RESOLVE-HOSTNAME") == 0 && n_args == 2) {
+ c->state = CLIENT_RESOLVE_HOSTNAME;
+ if (!(c->host_name_resolver = avahi_s_host_name_resolver_new(avahi_server, AVAHI_IF_UNSPEC, AVAHI_PROTO_UNSPEC, arg, c->afquery = AVAHI_PROTO_UNSPEC, AVAHI_LOOKUP_USE_MULTICAST, host_name_resolver_callback, c)))
+ goto fail;
+
+ avahi_log_debug(__FILE__": Got %s request for '%s'.", cmd, arg);
+ } else if (strcmp(cmd, "RESOLVE-ADDRESS") == 0 && n_args == 2) {
+ AvahiAddress addr;
+
+ if (!(avahi_address_parse(arg, AVAHI_PROTO_UNSPEC, &addr))) {
+ client_output_printf(c, "%+i Failed to parse address \"%s\".\n", AVAHI_ERR_INVALID_ADDRESS, arg);
+ c->state = CLIENT_DEAD;
+ } else {
+ c->state = CLIENT_RESOLVE_ADDRESS;
+ if (!(c->address_resolver = avahi_s_address_resolver_new(avahi_server, AVAHI_IF_UNSPEC, AVAHI_PROTO_UNSPEC, &addr, AVAHI_LOOKUP_USE_MULTICAST, address_resolver_callback, c)))
+ goto fail;
+ }
+
+ avahi_log_debug(__FILE__": Got %s request for '%s'.", cmd, arg);
+
+ } else if (strcmp(cmd, "BROWSE-DNS-SERVERS-IPV4") == 0 && n_args == 1) {
+ c->state = CLIENT_BROWSE_DNS_SERVERS;
+ if (!(c->dns_server_browser = avahi_s_dns_server_browser_new(avahi_server, AVAHI_IF_UNSPEC, AVAHI_PROTO_UNSPEC, NULL, AVAHI_DNS_SERVER_RESOLVE, c->afquery = AVAHI_PROTO_INET, AVAHI_LOOKUP_USE_MULTICAST, dns_server_browser_callback, c)))
+ goto fail;
+ client_output_printf(c, "+ Browsing ...\n");
+
+ avahi_log_debug(__FILE__": Got %s request.", cmd);
+
+ } else if (strcmp(cmd, "BROWSE-DNS-SERVERS-IPV6") == 0 && n_args == 1) {
+ c->state = CLIENT_BROWSE_DNS_SERVERS;
+ if (!(c->dns_server_browser = avahi_s_dns_server_browser_new(avahi_server, AVAHI_IF_UNSPEC, AVAHI_PROTO_UNSPEC, NULL, AVAHI_DNS_SERVER_RESOLVE, c->afquery = AVAHI_PROTO_INET6, AVAHI_LOOKUP_USE_MULTICAST, dns_server_browser_callback, c)))
+ goto fail;
+ client_output_printf(c, "+ Browsing ...\n");
+
+ avahi_log_debug(__FILE__": Got %s request.", cmd);
+
+ } else if (strcmp(cmd, "BROWSE-DNS-SERVERS") == 0 && n_args == 1) {
+ c->state = CLIENT_BROWSE_DNS_SERVERS;
+ if (!(c->dns_server_browser = avahi_s_dns_server_browser_new(avahi_server, AVAHI_IF_UNSPEC, AVAHI_PROTO_UNSPEC, NULL, AVAHI_DNS_SERVER_RESOLVE, c->afquery = AVAHI_PROTO_UNSPEC, AVAHI_LOOKUP_USE_MULTICAST, dns_server_browser_callback, c)))
+ goto fail;
+ client_output_printf(c, "+ Browsing ...\n");
+
+ avahi_log_debug(__FILE__": Got %s request.", cmd);
+
+ } else {
+ client_output_printf(c, "%+i Invalid command \"%s\", try \"HELP\".\n", AVAHI_ERR_INVALID_OPERATION, cmd);
+ c->state = CLIENT_DEAD;
+
+ avahi_log_debug(__FILE__": Got invalid request '%s'.", cmd);
+ }
+
+ return;
+
+fail:
+ client_output_printf(c, "%+i %s\n", avahi_server_errno(avahi_server), avahi_strerror(avahi_server_errno(avahi_server)));
+ c->state = CLIENT_DEAD;