4 This file is part of avahi.
6 avahi is free software; you can redistribute it and/or modify it
7 under the terms of the GNU Lesser General Public License as
8 published by the Free Software Foundation; either version 2.1 of the
9 License, or (at your option) any later version.
11 avahi is distributed in the hope that it will be useful, but WITHOUT
12 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
13 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General
14 Public License for more details.
16 You should have received a copy of the GNU Lesser General Public
17 License along with avahi; if not, write to the Free Software
18 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
30 #include <dbus/dbus.h>
32 #include <avahi-common/dbus.h>
33 #include <avahi-common/llist.h>
34 #include <avahi-common/error.h>
35 #include <avahi-common/dbus.h>
36 #include <avahi-common/malloc.h>
37 #include <avahi-common/dbus-watch-glue.h>
42 int avahi_client_set_errno (AvahiClient *client, int error) {
45 return client->error = error;
48 int avahi_client_set_dbus_error(AvahiClient *client, DBusError *error) {
52 return avahi_client_set_errno(client, avahi_error_dbus_to_number(error->name));
55 static void client_set_state (AvahiClient *client, AvahiServerState state) {
58 if (client->state == state)
61 client->state = state;
63 switch (client->state) {
64 case AVAHI_CLIENT_DISCONNECTED:
66 dbus_connection_disconnect(client->bus);
67 dbus_connection_unref(client->bus);
73 case AVAHI_CLIENT_S_COLLISION:
74 case AVAHI_CLIENT_S_REGISTERING:
76 /* Clear cached strings */
77 avahi_free(client->host_name);
78 avahi_free(client->host_name_fqdn);
79 avahi_free(client->domain_name);
81 client->host_name = NULL;
82 client->host_name_fqdn = NULL;
83 client->domain_name = NULL;
86 case AVAHI_CLIENT_S_INVALID:
87 case AVAHI_CLIENT_S_RUNNING:
93 client->callback (client, state, client->userdata);
96 static DBusHandlerResult filter_func(DBusConnection *bus, DBusMessage *message, void *userdata) {
97 AvahiClient *client = userdata;
103 dbus_error_init (&error);
105 /* fprintf(stderr, "dbus: interface=%s, path=%s, member=%s\n", */
106 /* dbus_message_get_interface (message), */
107 /* dbus_message_get_path (message), */
108 /* dbus_message_get_member (message)); */
110 if (client->state == AVAHI_CLIENT_DISCONNECTED)
113 if (dbus_message_is_signal(message, DBUS_INTERFACE_LOCAL, "Disconnected")) {
115 /* The DBUS server died or kicked us */
116 client_set_state(client, AVAHI_CLIENT_DISCONNECTED);
118 } if (dbus_message_is_signal(message, DBUS_INTERFACE_DBUS, "NameOwnerChanged")) {
119 char *name, *old, *new;
121 if (!(dbus_message_get_args(
123 DBUS_TYPE_STRING, &name,
124 DBUS_TYPE_STRING, &old,
125 DBUS_TYPE_STRING, &new,
126 DBUS_TYPE_INVALID) || dbus_error_is_set (&error))) {
128 fprintf(stderr, "WARNING: Failed to parse NameOwnerChanged signal: %s\n", error.message);
132 if (strcmp(name, AVAHI_DBUS_NAME) == 0)
134 /* Regardless if the server lost or acquired its name or
135 * if the name was transfered: our services are no longer
136 * available, so we disconnect ourselves */
138 client_set_state(client, AVAHI_CLIENT_DISCONNECTED);
140 } else if (dbus_message_is_signal (message, AVAHI_DBUS_INTERFACE_SERVER, "StateChanged")) {
143 if (!(dbus_message_get_args(
145 DBUS_TYPE_INT32, &state,
146 DBUS_TYPE_INVALID) || dbus_error_is_set (&error))) {
147 fprintf(stderr, "WARNING: Failed to parse Server.StateChanged signal: %s\n", error.message);
151 client_set_state(client, (AvahiClientState) state);
153 } else if (dbus_message_is_signal (message, AVAHI_DBUS_INTERFACE_ENTRY_GROUP, "StateChanged")) {
156 path = dbus_message_get_path(message);
158 for (g = client->groups; g; g = g->groups_next)
159 if (strcmp(g->path, path) == 0)
164 if (!(dbus_message_get_args (message, &error, DBUS_TYPE_INT32, &state, DBUS_TYPE_INVALID)) ||
165 dbus_error_is_set(&error)) {
166 fprintf(stderr, "WARNING: Failed to parse EntryGroup.StateChanged signal: %s\n", error.message);
170 avahi_entry_group_set_state(g, state);
173 } else if (dbus_message_is_signal(message, AVAHI_DBUS_INTERFACE_DOMAIN_BROWSER, "ItemNew"))
174 return avahi_domain_browser_event(client, AVAHI_BROWSER_NEW, message);
175 else if (dbus_message_is_signal (message, AVAHI_DBUS_INTERFACE_DOMAIN_BROWSER, "ItemRemove"))
176 return avahi_domain_browser_event(client, AVAHI_BROWSER_REMOVE, message);
177 else if (dbus_message_is_signal (message, AVAHI_DBUS_INTERFACE_DOMAIN_BROWSER, "CacheExhausted"))
178 return avahi_domain_browser_event(client, AVAHI_BROWSER_CACHE_EXHAUSTED, message);
179 else if (dbus_message_is_signal (message, AVAHI_DBUS_INTERFACE_DOMAIN_BROWSER, "AllForNow"))
180 return avahi_domain_browser_event(client, AVAHI_BROWSER_ALL_FOR_NOW, message);
181 else if (dbus_message_is_signal (message, AVAHI_DBUS_INTERFACE_DOMAIN_BROWSER, "NotFound"))
182 return avahi_domain_browser_event(client, AVAHI_BROWSER_NOT_FOUND, message);
183 else if (dbus_message_is_signal (message, AVAHI_DBUS_INTERFACE_DOMAIN_BROWSER, "Failure"))
184 return avahi_domain_browser_event(client, AVAHI_BROWSER_FAILURE, message);
186 else if (dbus_message_is_signal(message, AVAHI_DBUS_INTERFACE_SERVICE_TYPE_BROWSER, "ItemNew"))
187 return avahi_service_type_browser_event (client, AVAHI_BROWSER_NEW, message);
188 else if (dbus_message_is_signal(message, AVAHI_DBUS_INTERFACE_SERVICE_TYPE_BROWSER, "ItemRemove"))
189 return avahi_service_type_browser_event (client, AVAHI_BROWSER_REMOVE, message);
190 else if (dbus_message_is_signal(message, AVAHI_DBUS_INTERFACE_SERVICE_TYPE_BROWSER, "CacheExhausted"))
191 return avahi_service_type_browser_event (client, AVAHI_BROWSER_CACHE_EXHAUSTED, message);
192 else if (dbus_message_is_signal(message, AVAHI_DBUS_INTERFACE_SERVICE_TYPE_BROWSER, "AllForNow"))
193 return avahi_service_type_browser_event (client, AVAHI_BROWSER_ALL_FOR_NOW, message);
194 else if (dbus_message_is_signal(message, AVAHI_DBUS_INTERFACE_SERVICE_TYPE_BROWSER, "NotFound"))
195 return avahi_service_type_browser_event (client, AVAHI_BROWSER_NOT_FOUND, message);
196 else if (dbus_message_is_signal(message, AVAHI_DBUS_INTERFACE_SERVICE_TYPE_BROWSER, "Failure"))
197 return avahi_service_type_browser_event (client, AVAHI_BROWSER_FAILURE, message);
199 else if (dbus_message_is_signal(message, AVAHI_DBUS_INTERFACE_SERVICE_BROWSER, "ItemNew"))
200 return avahi_service_browser_event (client, AVAHI_BROWSER_NEW, message);
201 else if (dbus_message_is_signal(message, AVAHI_DBUS_INTERFACE_SERVICE_BROWSER, "ItemRemove"))
202 return avahi_service_browser_event (client, AVAHI_BROWSER_REMOVE, message);
203 else if (dbus_message_is_signal(message, AVAHI_DBUS_INTERFACE_SERVICE_BROWSER, "CacheExhausted"))
204 return avahi_service_browser_event (client, AVAHI_BROWSER_CACHE_EXHAUSTED, message);
205 else if (dbus_message_is_signal(message, AVAHI_DBUS_INTERFACE_SERVICE_BROWSER, "AllForNow"))
206 return avahi_service_browser_event (client, AVAHI_BROWSER_ALL_FOR_NOW, message);
207 else if (dbus_message_is_signal(message, AVAHI_DBUS_INTERFACE_SERVICE_BROWSER, "NotFound"))
208 return avahi_service_browser_event (client, AVAHI_BROWSER_NOT_FOUND, message);
209 else if (dbus_message_is_signal(message, AVAHI_DBUS_INTERFACE_SERVICE_BROWSER, "Failure"))
210 return avahi_service_browser_event (client, AVAHI_BROWSER_FAILURE, message);
212 else if (dbus_message_is_signal(message, AVAHI_DBUS_INTERFACE_SERVICE_RESOLVER, "Found"))
213 return avahi_service_resolver_event (client, AVAHI_RESOLVER_FOUND, message);
214 else if (dbus_message_is_signal(message, AVAHI_DBUS_INTERFACE_SERVICE_RESOLVER, "Timeout"))
215 return avahi_service_resolver_event (client, AVAHI_RESOLVER_TIMEOUT, message);
216 else if (dbus_message_is_signal(message, AVAHI_DBUS_INTERFACE_SERVICE_RESOLVER, "NotFound"))
217 return avahi_service_resolver_event (client, AVAHI_RESOLVER_NOT_FOUND, message);
218 else if (dbus_message_is_signal(message, AVAHI_DBUS_INTERFACE_SERVICE_RESOLVER, "Failure"))
219 return avahi_service_resolver_event (client, AVAHI_RESOLVER_FAILURE, message);
221 else if (dbus_message_is_signal(message, AVAHI_DBUS_INTERFACE_HOST_NAME_RESOLVER, "Found"))
222 return avahi_host_name_resolver_event (client, AVAHI_RESOLVER_FOUND, message);
223 else if (dbus_message_is_signal(message, AVAHI_DBUS_INTERFACE_HOST_NAME_RESOLVER, "Timeout"))
224 return avahi_host_name_resolver_event (client, AVAHI_RESOLVER_TIMEOUT, message);
225 else if (dbus_message_is_signal(message, AVAHI_DBUS_INTERFACE_HOST_NAME_RESOLVER, "NotFound"))
226 return avahi_host_name_resolver_event (client, AVAHI_RESOLVER_NOT_FOUND, message);
227 else if (dbus_message_is_signal(message, AVAHI_DBUS_INTERFACE_HOST_NAME_RESOLVER, "Failure"))
228 return avahi_host_name_resolver_event (client, AVAHI_RESOLVER_FAILURE, message);
230 else if (dbus_message_is_signal(message, AVAHI_DBUS_INTERFACE_ADDRESS_RESOLVER, "Found"))
231 return avahi_address_resolver_event (client, AVAHI_RESOLVER_FOUND, message);
232 else if (dbus_message_is_signal(message, AVAHI_DBUS_INTERFACE_ADDRESS_RESOLVER, "Timeout"))
233 return avahi_address_resolver_event (client, AVAHI_RESOLVER_TIMEOUT, message);
234 else if (dbus_message_is_signal(message, AVAHI_DBUS_INTERFACE_ADDRESS_RESOLVER, "NotFound"))
235 return avahi_address_resolver_event (client, AVAHI_RESOLVER_NOT_FOUND, message);
236 else if (dbus_message_is_signal(message, AVAHI_DBUS_INTERFACE_ADDRESS_RESOLVER, "Failure"))
237 return avahi_address_resolver_event (client, AVAHI_RESOLVER_FAILURE, message);
239 return DBUS_HANDLER_RESULT_HANDLED;
243 dbus_error_free (&error);
244 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
247 static int get_server_state(AvahiClient *client, int *ret_error) {
248 DBusMessage *message = NULL, *reply = NULL;
251 int e = AVAHI_ERR_NO_MEMORY;
255 dbus_error_init(&error);
257 if (!(message = dbus_message_new_method_call(AVAHI_DBUS_NAME, AVAHI_DBUS_PATH_SERVER, AVAHI_DBUS_INTERFACE_SERVER, "GetState")))
260 reply = dbus_connection_send_with_reply_and_block (client->bus, message, -1, &error);
262 if (!reply || dbus_error_is_set (&error))
265 if (!(dbus_message_get_args(reply, &error, DBUS_TYPE_INT32, &state, DBUS_TYPE_INVALID)) ||
266 dbus_error_is_set (&error))
269 client_set_state(client, (AvahiServerState) state);
271 dbus_message_unref(message);
272 dbus_message_unref(reply);
277 if (dbus_error_is_set(&error)) {
278 e = avahi_error_dbus_to_number (error.name);
279 dbus_error_free(&error);
286 dbus_message_unref(message);
288 dbus_message_unref(reply);
293 static int check_version(AvahiClient *client, int *ret_error) {
294 DBusMessage *message = NULL, *reply = NULL;
297 int e = AVAHI_ERR_NO_MEMORY;
301 dbus_error_init(&error);
303 if (!(message = dbus_message_new_method_call(AVAHI_DBUS_NAME, AVAHI_DBUS_PATH_SERVER, AVAHI_DBUS_INTERFACE_SERVER, "GetVersionString")))
306 reply = dbus_connection_send_with_reply_and_block (client->bus, message, -1, &error);
308 if (!reply || dbus_error_is_set (&error))
311 if (!dbus_message_get_args (reply, &error, DBUS_TYPE_STRING, &version, DBUS_TYPE_INVALID) ||
312 dbus_error_is_set (&error))
315 if (strcmp(version, PACKAGE_STRING) != 0) {
316 e = AVAHI_ERR_VERSION_MISMATCH;
320 dbus_message_unref(message);
321 dbus_message_unref(reply);
326 if (dbus_error_is_set(&error)) {
327 e = avahi_error_dbus_to_number (error.name);
328 dbus_error_free(&error);
335 dbus_message_unref(message);
337 dbus_message_unref(reply);
343 /* This function acts like dbus_bus_get but creates a private
344 * connection instead */
345 static DBusConnection*
346 avahi_dbus_bus_get (DBusError *error)
348 DBusConnection *conn;
349 const char *env_addr;
351 env_addr = getenv ("DBUS_SYSTEM_BUS_ADDRESS");
353 if (env_addr == NULL || (*env_addr == 0))
355 env_addr = DBUS_SYSTEM_BUS_DEFAULT_ADDRESS;
358 conn = dbus_connection_open_private (env_addr, error);
363 dbus_connection_set_exit_on_disconnect (conn, FALSE);
365 if (!dbus_bus_register (conn, error))
367 dbus_connection_close (conn);
368 dbus_connection_unref (conn);
376 AvahiClient *avahi_client_new(const AvahiPoll *poll_api, AvahiClientCallback callback, void *userdata, int *ret_error) {
377 AvahiClient *client = NULL;
380 dbus_error_init (&error);
382 if (!(client = avahi_new(AvahiClient, 1))) {
384 *ret_error = AVAHI_ERR_NO_MEMORY;
388 client->poll_api = poll_api;
389 client->error = AVAHI_OK;
390 client->callback = callback;
391 client->userdata = userdata;
392 client->state = AVAHI_CLIENT_DISCONNECTED;
394 client->host_name = NULL;
395 client->host_name_fqdn = NULL;
396 client->domain_name = NULL;
397 client->version_string = NULL;
398 client->local_service_cookie_valid = 0;
400 AVAHI_LLIST_HEAD_INIT(AvahiEntryGroup, client->groups);
401 AVAHI_LLIST_HEAD_INIT(AvahiDomainBrowser, client->domain_browsers);
402 AVAHI_LLIST_HEAD_INIT(AvahiServiceBrowser, client->service_browsers);
403 AVAHI_LLIST_HEAD_INIT(AvahiServiceTypeBrowser, client->service_type_browsers);
404 AVAHI_LLIST_HEAD_INIT(AvahiServiceResolver, client->service_resolvers);
405 AVAHI_LLIST_HEAD_INIT(AvahiHostNameResolver, client->host_name_resolvers);
406 AVAHI_LLIST_HEAD_INIT(AvahiAddressResolver, client->address_resolvers);
408 if (!(client->bus = avahi_dbus_bus_get(&error)) ||
409 dbus_error_is_set (&error))
412 if (avahi_dbus_connection_glue(client->bus, poll_api) < 0) {
414 *ret_error = AVAHI_ERR_NO_MEMORY; /* Not optimal */
418 if (!dbus_connection_add_filter (client->bus, filter_func, client, NULL)) {
420 *ret_error = AVAHI_ERR_NO_MEMORY;
427 "interface='" AVAHI_DBUS_INTERFACE_SERVER "', "
428 "sender='" AVAHI_DBUS_NAME "', "
429 "path='" AVAHI_DBUS_PATH_SERVER "'",
432 if (dbus_error_is_set (&error))
438 "interface='" DBUS_INTERFACE_DBUS "', "
439 "sender='" DBUS_SERVICE_DBUS "', "
440 "path='" DBUS_PATH_DBUS "'",
443 if (dbus_error_is_set (&error))
449 "interface='" DBUS_INTERFACE_LOCAL "'",
452 if (dbus_error_is_set (&error))
455 if (!(dbus_bus_name_has_owner(client->bus, AVAHI_DBUS_NAME, &error)) ||
456 dbus_error_is_set(&error)) {
458 /* We free the error so its not set, that way the fail target
459 * will return the NO_DAEMON error rather than a DBUS error */
460 dbus_error_free (&error);
463 *ret_error = AVAHI_ERR_NO_DAEMON;
468 if (check_version(client, ret_error) < 0)
471 if (get_server_state(client, ret_error) < 0)
479 avahi_client_free(client);
481 if (dbus_error_is_set(&error)) {
484 *ret_error = avahi_error_dbus_to_number(error.name);
486 dbus_error_free(&error);
492 void avahi_client_free(AvahiClient *client) {
495 while (client->groups)
496 avahi_entry_group_free(client->groups);
498 while (client->domain_browsers)
499 avahi_domain_browser_free(client->domain_browsers);
501 while (client->service_browsers)
502 avahi_service_browser_free(client->service_browsers);
504 while (client->service_type_browsers)
505 avahi_service_type_browser_free(client->service_type_browsers);
507 while (client->service_resolvers)
508 avahi_service_resolver_free(client->service_resolvers);
511 dbus_connection_disconnect(client->bus);
512 dbus_connection_unref(client->bus);
515 avahi_free(client->version_string);
516 avahi_free(client->host_name);
517 avahi_free(client->host_name_fqdn);
518 avahi_free(client->domain_name);
523 static char* avahi_client_get_string_reply_and_block (AvahiClient *client, const char *method, const char *param) {
524 DBusMessage *message = NULL, *reply = NULL;
531 dbus_error_init (&error);
533 if (!(message = dbus_message_new_method_call (AVAHI_DBUS_NAME, AVAHI_DBUS_PATH_SERVER, AVAHI_DBUS_INTERFACE_SERVER, method))) {
534 avahi_client_set_errno(client, AVAHI_ERR_NO_MEMORY);
539 if (!dbus_message_append_args (message, DBUS_TYPE_STRING, ¶m, DBUS_TYPE_INVALID)) {
540 avahi_client_set_errno (client, AVAHI_ERR_NO_MEMORY);
545 reply = dbus_connection_send_with_reply_and_block (client->bus, message, -1, &error);
547 if (!reply || dbus_error_is_set (&error))
550 if (!dbus_message_get_args (reply, &error, DBUS_TYPE_STRING, &ret, DBUS_TYPE_INVALID) ||
551 dbus_error_is_set (&error))
554 if (!(n = avahi_strdup(ret))) {
555 avahi_client_set_errno(client, AVAHI_ERR_NO_MEMORY);
559 dbus_message_unref(message);
560 dbus_message_unref(reply);
567 dbus_message_unref(message);
569 dbus_message_unref(reply);
571 if (dbus_error_is_set(&error)) {
572 avahi_client_set_dbus_error(client, &error);
573 dbus_error_free(&error);
579 const char* avahi_client_get_version_string (AvahiClient *client) {
582 if (client->state == AVAHI_CLIENT_DISCONNECTED) {
583 avahi_client_set_errno(client, AVAHI_ERR_BAD_STATE);
587 if (!client->version_string)
588 client->version_string = avahi_client_get_string_reply_and_block(client, "GetVersionString", NULL);
590 return client->version_string;
593 const char* avahi_client_get_domain_name (AvahiClient *client) {
596 if (client->state == AVAHI_CLIENT_DISCONNECTED) {
597 avahi_client_set_errno(client, AVAHI_ERR_BAD_STATE);
601 if (!client->domain_name)
602 client->domain_name = avahi_client_get_string_reply_and_block(client, "GetDomainName", NULL);
604 return client->domain_name;
607 const char* avahi_client_get_host_name (AvahiClient *client) {
610 if (client->state == AVAHI_CLIENT_DISCONNECTED) {
611 avahi_client_set_errno(client, AVAHI_ERR_BAD_STATE);
615 if (!client->host_name)
616 client->host_name = avahi_client_get_string_reply_and_block(client, "GetHostName", NULL);
618 return client->host_name;
621 const char* avahi_client_get_host_name_fqdn (AvahiClient *client) {
624 if (client->state == AVAHI_CLIENT_DISCONNECTED) {
625 avahi_client_set_errno(client, AVAHI_ERR_BAD_STATE);
629 if (!client->host_name_fqdn)
630 client->host_name_fqdn = avahi_client_get_string_reply_and_block(client, "GetHostNameFqdn", NULL);
632 return client->host_name_fqdn;
635 AvahiClientState avahi_client_get_state(AvahiClient *client) {
638 return client->state;
641 int avahi_client_errno(AvahiClient *client) {
644 return client->error;
647 /* Just for internal use */
648 int avahi_client_simple_method_call(AvahiClient *client, const char *path, const char *interface, const char *method) {
649 DBusMessage *message = NULL, *reply = NULL;
653 dbus_error_init(&error);
660 if (!(message = dbus_message_new_method_call(AVAHI_DBUS_NAME, path, interface, method))) {
661 r = avahi_client_set_errno(client, AVAHI_ERR_NO_MEMORY);
665 if (!(reply = dbus_connection_send_with_reply_and_block(client->bus, message, -1, &error)) ||
666 dbus_error_is_set (&error)) {
667 r = avahi_client_set_errno(client, AVAHI_ERR_DBUS_ERROR);
671 if (!dbus_message_get_args(reply, &error, DBUS_TYPE_INVALID) ||
672 dbus_error_is_set (&error)) {
673 r = avahi_client_set_errno(client, AVAHI_ERR_DBUS_ERROR);
677 dbus_message_unref(message);
678 dbus_message_unref(reply);
683 if (dbus_error_is_set(&error)) {
684 r = avahi_client_set_dbus_error(client, &error);
685 dbus_error_free(&error);
689 dbus_message_unref(message);
692 dbus_message_unref(reply);
697 uint32_t avahi_client_get_local_service_cookie(AvahiClient *client) {
698 DBusMessage *message = NULL, *reply = NULL;
702 if (client->state == AVAHI_CLIENT_DISCONNECTED) {
703 avahi_client_set_errno(client, AVAHI_ERR_BAD_STATE);
704 return AVAHI_SERVICE_COOKIE_INVALID;
707 if (client->local_service_cookie_valid)
708 return client->local_service_cookie;
710 dbus_error_init (&error);
712 if (!(message = dbus_message_new_method_call(AVAHI_DBUS_NAME, AVAHI_DBUS_PATH_SERVER, AVAHI_DBUS_INTERFACE_SERVER, "GetLocalServiceCookie"))) {
713 avahi_client_set_errno(client, AVAHI_ERR_NO_MEMORY);
717 reply = dbus_connection_send_with_reply_and_block (client->bus, message, -1, &error);
719 if (!reply || dbus_error_is_set (&error))
722 if (!dbus_message_get_args (reply, &error, DBUS_TYPE_UINT32, &client->local_service_cookie, DBUS_TYPE_INVALID) ||
723 dbus_error_is_set (&error))
726 dbus_message_unref(message);
727 dbus_message_unref(reply);
729 client->local_service_cookie_valid = 1;
730 return client->local_service_cookie;
735 dbus_message_unref(message);
737 dbus_message_unref(reply);
739 if (dbus_error_is_set(&error)) {
740 avahi_client_set_dbus_error(client, &error);
741 dbus_error_free(&error);
744 return AVAHI_SERVICE_COOKIE_INVALID;
747 int avahi_client_is_service_local(AvahiClient *client, AvahiIfIndex interface, AvahiProtocol protocol, const char *name, const char *type, const char *domain) {
748 DBusMessage *message = NULL, *reply = NULL;
750 int32_t i_interface, i_protocol;
758 if (client->state == AVAHI_CLIENT_DISCONNECTED) {
759 avahi_client_set_errno(client, AVAHI_ERR_BAD_STATE);
760 return AVAHI_SERVICE_COOKIE_INVALID;
763 dbus_error_init (&error);
765 if (!(message = dbus_message_new_method_call(AVAHI_DBUS_NAME, AVAHI_DBUS_PATH_SERVER, AVAHI_DBUS_INTERFACE_SERVER, "IsServiceLocal"))) {
766 avahi_client_set_errno(client, AVAHI_ERR_NO_MEMORY);
770 i_interface = (int32_t) interface;
771 i_protocol = (int32_t) protocol;
773 if (!dbus_message_append_args(
775 DBUS_TYPE_INT32, &i_interface,
776 DBUS_TYPE_INT32, &i_protocol,
777 DBUS_TYPE_STRING, &name,
778 DBUS_TYPE_STRING, &type,
779 DBUS_TYPE_STRING, &domain,
780 DBUS_TYPE_INVALID)) {
781 avahi_client_set_errno (client, AVAHI_ERR_NO_MEMORY);
785 reply = dbus_connection_send_with_reply_and_block (client->bus, message, -1, &error);
787 if (!reply || dbus_error_is_set (&error))
790 if (!dbus_message_get_args (reply, &error, DBUS_TYPE_BOOLEAN, &b, DBUS_TYPE_INVALID) ||
791 dbus_error_is_set (&error))
794 dbus_message_unref(message);
795 dbus_message_unref(reply);
802 dbus_message_unref(message);
804 dbus_message_unref(reply);
806 if (dbus_error_is_set(&error)) {
807 avahi_client_set_dbus_error(client, &error);
808 dbus_error_free(&error);
811 return AVAHI_SERVICE_COOKIE_INVALID;