+/* $Id$ */
+
+/***
+ This file is part of avahi.
+
+ avahi is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as
+ published by the Free Software Foundation; either version 2.1 of the
+ License, or (at your option) any later version.
+
+ avahi is distributed in the hope that it will be useful, but WITHOUT
+ ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General
+ Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with avahi; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
+ USA.
+***/
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
#include <avahi-client/client.h>
+#include <avahi-common/dbus.h>
+#include <avahi-common/llist.h>
+#include <avahi-common/error.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+
+#define DBUS_API_SUBJECT_TO_CHANGE
+#include <dbus/dbus.h>
+#include <dbus/dbus-glib-lowlevel.h>
+
+#include <stdlib.h>
+
+#include "client.h"
+#include "internal.h"
+
+int
+avahi_client_set_errno (AvahiClient *client, int errno)
+{
+ if (client == NULL) return errno;
+
+ client->errno = errno;
+
+ return errno;
+}
+
+static
+void avahi_client_state_change (AvahiClient *client, int state)
+{
+ if (client == NULL || client->callback == NULL)
+ return;
+
+ client->callback (client, state, client->user_data);
+}
+
+void
+avahi_client_state_request_callback (DBusPendingCall *call, void *data)
+{
+ AvahiClient *client = data;
+ DBusError error;
+ DBusMessage *reply;
+ int state, type;
+
+ dbus_error_init (&error);
+
+ reply = dbus_pending_call_steal_reply (call);
+
+ type = dbus_message_get_type (reply);
+
+ if (type == DBUS_MESSAGE_TYPE_METHOD_RETURN)
+ {
+ dbus_message_get_args (reply, &error, DBUS_TYPE_INT32, &state, DBUS_TYPE_INVALID);
+
+ if (dbus_error_is_set (&error))
+ {
+ fprintf (stderr, "internal error parsing client state change for client\n");
+ return;
+ }
+
+ printf ("statechange (client) to %d\n", state);
+
+ avahi_client_state_change (client, state);
+ } else if (type == DBUS_MESSAGE_TYPE_ERROR) {
+ dbus_set_error_from_message (&error, reply);
+ fprintf (stderr, "Error from reply: %s\n", error.message);
+ }
+
+ dbus_pending_call_unref (call);
+}
+
+void
+avahi_client_schedule_state_request (AvahiClient *client)
+{
+ DBusMessage *message;
+ DBusPendingCall *pcall;
+
+ if (client == NULL) return;
+
+ message = dbus_message_new_method_call (AVAHI_DBUS_NAME, AVAHI_DBUS_PATH_SERVER, AVAHI_DBUS_INTERFACE_SERVER, "GetState");
+
+ dbus_connection_send_with_reply (client->bus, message, &pcall, -1);
+
+ dbus_pending_call_set_notify (pcall, avahi_client_state_request_callback, client, NULL);
+}
+
+static DBusHandlerResult
+filter_func (DBusConnection *bus, DBusMessage *message, void *data)
+{
+ AvahiClient *client = data;
+ DBusError error;
+
+ printf ("dbus: interface=%s, path=%s, member=%s\n",
+ dbus_message_get_interface (message),
+ dbus_message_get_path (message),
+ dbus_message_get_member (message));
+
+ dbus_error_init (&error);
+
+ if (dbus_message_is_signal(message, DBUS_INTERFACE_DBUS, "NameOwnerChanged")) {
+ gchar *name, *old, *new;
+ dbus_message_get_args(message, &error, DBUS_TYPE_STRING, &name, DBUS_TYPE_STRING, &old, DBUS_TYPE_STRING, &new, DBUS_TYPE_INVALID);
+
+ if (dbus_error_is_set (&error)) {
+ fprintf(stderr, "Failed to parse NameOwnerChanged message: %s", error.message);
+ dbus_error_free (&error);
+ goto out;
+ }
+
+ if (strcmp (name, AVAHI_DBUS_NAME) == 0) {
+
+ if (old == NULL && new != NULL) {
+ fprintf(stderr, "Avahi Daemon connected\n");
+ avahi_client_state_change (client, AVAHI_CLIENT_RECONNECTED);
+ } else if (old != NULL && new == NULL) {
+ fprintf(stderr, "Avahi Daemon disconnected\n");
+ avahi_client_state_change (client, AVAHI_CLIENT_DISCONNECTED);
+ /* XXX: we really need to expire all entry groups */
+ }
+ }
+ } else if (dbus_message_is_signal (message, AVAHI_DBUS_NAME, "StateChanged")) {
+ printf ("server statehcange\n");
+ } else if (dbus_message_is_signal (message, AVAHI_DBUS_INTERFACE_ENTRY_GROUP, "StateChanged")) {
+ const char *path;
+ AvahiEntryGroup *n, *group = NULL;
+ path = dbus_message_get_path (message);
+
+ for (n = client->groups; n != NULL; n = n->groups_next)
+ {
+ if (strcmp (n->path, path) == 0)
+ {
+ group = n;
+ break;
+ }
+ }
+
+ if (group == NULL)
+ {
+ fprintf (stderr, "Received state change for unknown EntryGroup object (%s)\n", path);
+ } else {
+ int state;
+ DBusError error;
+
+ dbus_error_init (&error);
+
+ dbus_message_get_args (message, &error, DBUS_TYPE_INT32, &state, DBUS_TYPE_INVALID);
+
+ if (dbus_error_is_set (&error))
+ {
+ fprintf (stderr, "internal error parsing entrygroup statechange for %s\n", group->path);
+ goto out;
+ }
+
+ printf ("statechange (%s) to %d\n", group->path, state);
+
+ avahi_entry_group_state_change (group, state);
+ }
+ }
+
+ return DBUS_HANDLER_RESULT_HANDLED;
+
+out:
+ return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
+}
AvahiClient *
-avahi_client_new ()
+avahi_client_new (AvahiClientCallback callback, void *user_data)
{
- AvahiClient *tmp;
+ AvahiClient *tmp = NULL;
+ DBusError error;
- tmp = g_new0 (AvahiClient, 1);
+ tmp = g_new (AvahiClient, 1);
- return tmp;
+ if (tmp == NULL)
+ goto fail;
+
+ AVAHI_LLIST_HEAD_INIT(AvahiEntryGroup, tmp->groups);
+
+ dbus_error_init (&error);
+
+ tmp->bus = dbus_bus_get (DBUS_BUS_SYSTEM, &error);
+
+ dbus_connection_setup_with_g_main (tmp->bus, NULL);
+
+ if (dbus_error_is_set (&error)) {
+ fprintf(stderr, "Error getting system d-bus: %s\n", error.message);
+ dbus_error_free (&error);
+ goto fail;
+ }
+
+ dbus_connection_set_exit_on_disconnect (tmp->bus, FALSE);
+
+ if (!dbus_connection_add_filter (tmp->bus, filter_func, tmp, NULL))
+ {
+ fprintf (stderr, "Failed to add d-bus filter\n");
+ goto fail;
+ }
+
+ dbus_bus_add_match (tmp->bus,
+ "type='signal', "
+ "interface='" AVAHI_DBUS_INTERFACE_SERVER "', "
+ "sender='" AVAHI_DBUS_NAME "', "
+ "path='" AVAHI_DBUS_PATH_SERVER "'",
+ &error);
+
+ if (dbus_error_is_set (&error))
+ {
+ fprintf (stderr, "Error adding filter match: %s\n", error.message);
+ dbus_error_free (&error);
+ goto fail;
+
+ }
+
+ dbus_bus_add_match (tmp->bus,
+ "type='signal', "
+ "interface='" DBUS_INTERFACE_DBUS "', "
+ "sender='" DBUS_SERVICE_DBUS "', "
+ "path='" DBUS_PATH_DBUS "'",
+ &error);
+
+ if (dbus_error_is_set (&error))
+ {
+ fprintf (stderr, "Error adding filter match: %s\n", error.message);
+ dbus_error_free (&error);
+ goto fail;
+ }
+
+ tmp->callback = callback;
+ tmp->user_data = user_data;
+
+ avahi_client_schedule_state_request (tmp);
+
+ avahi_client_set_errno (tmp, AVAHI_OK);
+ return tmp;
+
+fail:
+ if (tmp) free (tmp);
+ return NULL;
+}
+
+static char*
+avahi_client_get_string_reply_and_block (AvahiClient *client, char *method, char *param)
+{
+ DBusMessage *message;
+ DBusMessage *reply;
+ DBusError error;
+ char *ret, *new;
+
+ if (client == NULL || method == NULL) return NULL;
+
+ dbus_error_init (&error);
+
+ message = dbus_message_new_method_call (AVAHI_DBUS_NAME, AVAHI_DBUS_PATH_SERVER, AVAHI_DBUS_INTERFACE_SERVER, method);
+
+ if (param != NULL)
+ {
+ if (!dbus_message_append_args (message, DBUS_TYPE_STRING, ¶m, DBUS_TYPE_INVALID))
+ {
+ avahi_client_set_errno (client, AVAHI_ERR_DBUS_ERROR);
+ fprintf (stderr, "Failed to append string argument to %s message\n", method);
+ return NULL;
+ }
+ }
+
+ reply = dbus_connection_send_with_reply_and_block (client->bus, message, -1, &error);
+
+ if (dbus_error_is_set (&error))
+ {
+ fprintf (stderr, "Error sending %s message: %s\n", method, error.message);
+ dbus_error_free (&error);
+ dbus_message_unref (message);
+
+ avahi_client_set_errno (client, AVAHI_ERR_DBUS_ERROR);
+ return NULL;
+ }
+
+ if (reply == NULL)
+ {
+ dbus_message_unref (message);
+ fprintf (stderr, "Could not connect to Avahi daemon\n");
+
+ avahi_client_set_errno (client, AVAHI_ERR_DBUS_ERROR);
+ return NULL;
+ }
+
+ dbus_message_get_args (reply, &error, DBUS_TYPE_STRING, &ret, DBUS_TYPE_INVALID);
+
+ if (dbus_error_is_set (&error))
+ {
+ fprintf (stderr, "Failed to parse %s reply: %s\n", method, error.message);
+ dbus_error_free (&error);
+
+ avahi_client_set_errno (client, AVAHI_ERR_DBUS_ERROR);
+ return NULL;
+ }
+
+ new = strdup (ret);
+
+ avahi_client_set_errno (client, AVAHI_OK);
+ return new;
+}
+
+char*
+avahi_client_get_version_string (AvahiClient *client)
+{
+ return avahi_client_get_string_reply_and_block (client, "GetVersionString", NULL);
+}
+
+char*
+avahi_client_get_domain_name (AvahiClient *client)
+{
+ return avahi_client_get_string_reply_and_block (client, "GetDomainName", NULL);
+}
+
+char*
+avahi_client_get_host_name (AvahiClient *client)
+{
+ return avahi_client_get_string_reply_and_block (client, "GetHostName", NULL);
+}
+
+char*
+avahi_client_get_host_name_fqdn (AvahiClient *client)
+{
+ return avahi_client_get_string_reply_and_block (client, "GetHostNameFqdn", NULL);
}
projects / catta / blobdiff