+
+AvahiClient *avahi_client_new(const AvahiPoll *poll_api, AvahiClientCallback callback, void *userdata, int *ret_error) {
+ AvahiClient *client = NULL;
+ DBusError error;
+
+ dbus_error_init (&error);
+
+ if (!(client = avahi_new(AvahiClient, 1))) {
+ if (ret_error)
+ *ret_error = AVAHI_ERR_NO_MEMORY;
+ goto fail;
+ }
+
+ client->poll_api = poll_api;
+ client->error = AVAHI_OK;
+ client->callback = callback;
+ client->userdata = userdata;
+ client->state = AVAHI_CLIENT_DISCONNECTED;
+
+ client->host_name = NULL;
+ client->host_name_fqdn = NULL;
+ client->domain_name = NULL;
+ client->version_string = NULL;
+
+ AVAHI_LLIST_HEAD_INIT(AvahiEntryGroup, client->groups);
+ AVAHI_LLIST_HEAD_INIT(AvahiDomainBrowser, client->domain_browsers);
+ AVAHI_LLIST_HEAD_INIT(AvahiServiceBrowser, client->service_browsers);
+ AVAHI_LLIST_HEAD_INIT(AvahiServiceTypeBrowser, client->service_type_browsers);
+ AVAHI_LLIST_HEAD_INIT(AvahiServiceResolver, client->service_resolvers);
+ AVAHI_LLIST_HEAD_INIT(AvahiHostNameResolver, client->host_name_resolvers);
+ AVAHI_LLIST_HEAD_INIT(AvahiAddressResolver, client->address_resolvers);
+
+ if (!(client->bus = avahi_dbus_bus_get(&error)) ||
+ dbus_error_is_set (&error))
+ goto fail;
+
+ if (avahi_dbus_connection_glue(client->bus, poll_api) < 0) {
+ if (ret_error)
+ *ret_error = AVAHI_ERR_NO_MEMORY; /* Not optimal */
+ goto fail;
+ }
+
+ if (!dbus_connection_add_filter (client->bus, filter_func, client, NULL)) {
+ if (ret_error)
+ *ret_error = AVAHI_ERR_NO_MEMORY;
+ goto fail;
+ }
+
+ dbus_bus_add_match(
+ client->bus,
+ "type='signal', "
+ "interface='" AVAHI_DBUS_INTERFACE_SERVER "', "
+ "sender='" AVAHI_DBUS_NAME "', "
+ "path='" AVAHI_DBUS_PATH_SERVER "'",
+ &error);
+
+ if (dbus_error_is_set (&error))
+ goto fail;
+
+ dbus_bus_add_match (
+ client->bus,
+ "type='signal', "
+ "interface='" DBUS_INTERFACE_DBUS "', "
+ "sender='" DBUS_SERVICE_DBUS "', "
+ "path='" DBUS_PATH_DBUS "'",
+ &error);
+
+ if (dbus_error_is_set (&error))
+ goto fail;
+
+ dbus_bus_add_match (
+ client->bus,
+ "type='signal', "
+ "interface='" DBUS_INTERFACE_LOCAL "'",
+ &error);
+
+ if (dbus_error_is_set (&error))
+ goto fail;
+
+ if (!(dbus_bus_name_has_owner(client->bus, AVAHI_DBUS_NAME, &error)) ||
+ dbus_error_is_set(&error)) {
+
+ if (ret_error)
+ *ret_error = AVAHI_ERR_NO_DAEMON;
+
+ goto fail;
+ }
+
+ if (get_server_state(client, ret_error) < 0)
+ goto fail;
+
+ return client;
+
+fail:
+
+ if (client)
+ avahi_client_free(client);
+
+ if (dbus_error_is_set(&error)) {
+
+ if (ret_error)
+ *ret_error = avahi_error_dbus_to_number(error.name);
+
+ dbus_error_free(&error);
+ }
+
+ return NULL;
+}
+
+void avahi_client_free(AvahiClient *client) {
+ assert(client);
+
+ while (client->groups)
+ avahi_entry_group_free(client->groups);
+
+ while (client->domain_browsers)
+ avahi_domain_browser_free(client->domain_browsers);
+
+ while (client->service_browsers)
+ avahi_service_browser_free(client->service_browsers);
+
+ while (client->service_type_browsers)
+ avahi_service_type_browser_free(client->service_type_browsers);
+
+ while (client->service_resolvers)
+ avahi_service_resolver_free(client->service_resolvers);
+
+ if (client->bus) {
+ dbus_connection_disconnect(client->bus);
+ dbus_connection_unref(client->bus);
+ }
+
+ avahi_free(client->version_string);
+ avahi_free(client->host_name);
+ avahi_free(client->host_name_fqdn);
+ avahi_free(client->domain_name);
+
+ avahi_free(client);
+}
+
+static char* avahi_client_get_string_reply_and_block (AvahiClient *client, const char *method, const char *param) {
+ DBusMessage *message = NULL, *reply = NULL;
+ DBusError error;
+ char *ret, *n;
+
+ assert(client);
+ assert(method);
+
+ dbus_error_init (&error);
+
+ if (!(message = dbus_message_new_method_call (AVAHI_DBUS_NAME, AVAHI_DBUS_PATH_SERVER, AVAHI_DBUS_INTERFACE_SERVER, method))) {
+ avahi_client_set_errno(client, AVAHI_ERR_NO_MEMORY);
+ goto fail;
+ }
+
+ if (param) {
+ if (!dbus_message_append_args (message, DBUS_TYPE_STRING, ¶m, DBUS_TYPE_INVALID)) {
+ avahi_client_set_errno (client, AVAHI_ERR_NO_MEMORY);
+ goto fail;
+ }
+ }
+
+ reply = dbus_connection_send_with_reply_and_block (client->bus, message, -1, &error);
+
+ if (!reply || dbus_error_is_set (&error))
+ goto fail;
+
+ if (!dbus_message_get_args (reply, &error, DBUS_TYPE_STRING, &ret, DBUS_TYPE_INVALID) ||
+ dbus_error_is_set (&error))
+ goto fail;
+
+ if (!(n = avahi_strdup(ret))) {
+ avahi_client_set_errno(client, AVAHI_ERR_NO_MEMORY);
+ goto fail;
+ }
+
+ dbus_message_unref(message);
+ dbus_message_unref(reply);
+
+ return n;
+
+fail:
+
+ if (message)
+ dbus_message_unref(message);
+ if (reply)
+ dbus_message_unref(reply);
+
+ if (dbus_error_is_set(&error)) {
+ avahi_client_set_dbus_error(client, &error);
+ dbus_error_free(&error);
+ }
+
+ return NULL;
+}
+
+const char* avahi_client_get_version_string (AvahiClient *client) {
+ assert(client);
+
+ if (client->state == AVAHI_CLIENT_DISCONNECTED) {
+ avahi_client_set_errno(client, AVAHI_ERR_BAD_STATE);
+ return NULL;
+ }
+
+ if (!client->version_string)
+ client->version_string = avahi_client_get_string_reply_and_block(client, "GetVersionString", NULL);
+
+ return client->version_string;
+}
+
+const char* avahi_client_get_domain_name (AvahiClient *client) {
+ assert(client);
+
+ if (client->state == AVAHI_CLIENT_DISCONNECTED) {
+ avahi_client_set_errno(client, AVAHI_ERR_BAD_STATE);
+ return NULL;
+ }
+
+ if (!client->domain_name)
+ client->domain_name = avahi_client_get_string_reply_and_block(client, "GetDomainName", NULL);
+
+ return client->domain_name;
+}
+
+const char* avahi_client_get_host_name (AvahiClient *client) {
+ assert(client);
+
+ if (client->state == AVAHI_CLIENT_DISCONNECTED) {
+ avahi_client_set_errno(client, AVAHI_ERR_BAD_STATE);
+ return NULL;
+ }
+
+ if (!client->host_name)
+ client->host_name = avahi_client_get_string_reply_and_block(client, "GetHostName", NULL);
+
+ return client->host_name;
+}
+
+const char* avahi_client_get_host_name_fqdn (AvahiClient *client) {
+ assert(client);
+
+ if (client->state == AVAHI_CLIENT_DISCONNECTED) {
+ avahi_client_set_errno(client, AVAHI_ERR_BAD_STATE);
+ return NULL;
+ }
+
+ if (!client->host_name_fqdn)
+ client->host_name_fqdn = avahi_client_get_string_reply_and_block(client, "GetHostNameFqdn", NULL);
+
+ return client->host_name_fqdn;
+}
+
+AvahiClientState avahi_client_get_state(AvahiClient *client) {
+ assert(client);
+
+ return client->state;
+}
+
+int avahi_client_errno(AvahiClient *client) {
+ assert(client);
+
+ return client->error;
+}
+
+/* Just for internal use */
+int avahi_client_simple_method_call(AvahiClient *client, const char *path, const char *interface, const char *method) {
+ DBusMessage *message = NULL, *reply = NULL;
+ DBusError error;
+ int r = AVAHI_OK;
+
+ dbus_error_init(&error);
+
+ assert(client);
+ assert(path);
+ assert(interface);
+ assert(method);
+
+ if (!(message = dbus_message_new_method_call(AVAHI_DBUS_NAME, path, interface, method))) {
+ r = avahi_client_set_errno(client, AVAHI_ERR_NO_MEMORY);
+ goto fail;
+ }
+
+ if (!(reply = dbus_connection_send_with_reply_and_block(client->bus, message, -1, &error)) ||
+ dbus_error_is_set (&error)) {
+ r = avahi_client_set_errno(client, AVAHI_ERR_DBUS_ERROR);
+ goto fail;
+ }
+
+ if (!dbus_message_get_args(reply, &error, DBUS_TYPE_INVALID) ||
+ dbus_error_is_set (&error)) {
+ r = avahi_client_set_errno(client, AVAHI_ERR_DBUS_ERROR);
+ goto fail;
+ }
+
+ dbus_message_unref(message);
+ dbus_message_unref(reply);
+
+ return AVAHI_OK;
+
+fail:
+ if (dbus_error_is_set(&error)) {
+ r = avahi_client_set_dbus_error(client, &error);
+ dbus_error_free(&error);
+ }
+
+ if (message)
+ dbus_message_unref(message);
+
+ if (reply)
+ dbus_message_unref(reply);
+
+ return r;
+}
+