X-Git-Url: http://git.meshlink.io/?a=blobdiff_plain;f=avahi-client%2Fclient.c;h=f5de8588d870a8fd3d260115f2c6118ea2129599;hb=aa458a0a13d18882354f33c07b0a4e8e82e7a424;hp=36434036aeca2e062b3b44a1cb4d631ffca7bd5d;hpb=368ed1a2a0d95964b3f88c70c9a8c5516367f3f7;p=catta diff --git a/avahi-client/client.c b/avahi-client/client.c index 3643403..f5de858 100644 --- a/avahi-client/client.c +++ b/avahi-client/client.c @@ -1,18 +1,255 @@ +/* $Id$ */ + +/*** + 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 +#endif + #include #include -#include +#include +#include +#include +#include #define DBUS_API_SUBJECT_TO_CHANGE #include +#include #include +struct _AvahiClient +{ + DBusConnection *bus; + AVAHI_LLIST_HEAD(AvahiEntryGroup, groups); +}; + +struct _AvahiEntryGroup { + char *path; + AvahiClient *parent; + AVAHI_LLIST_FIELDS(AvahiEntryGroup, groups); +}; + +static DBusHandlerResult +filter_func (DBusConnection *bus, DBusMessage *message, void *data) +{ + DBusError error; + + g_assert (bus != NULL); + g_assert (message != NULL); + + 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"); + } else if (old != NULL && new == NULL) { + fprintf(stderr, "Avahi Daemon disconnected\n"); + } + } + + return DBUS_HANDLER_RESULT_HANDLED; + } + +out: + return DBUS_HANDLER_RESULT_NOT_YET_HANDLED; +} + AvahiClient * avahi_client_new () { AvahiClient *tmp; + DBusError error; + + tmp = g_new (AvahiClient, 1); + + 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; + + } + + 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; + + g_assert (client != NULL); + g_assert (method != 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)) + { + 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); + return NULL; + } + + if (reply == NULL) + { + dbus_message_unref (message); + fprintf (stderr, "Could not connect to Avahi daemon\n"); + 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); + return NULL; + } + + new = strdup (ret); + + 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); +} + +AvahiEntryGroup* +avahi_entry_group_new (AvahiClient *client) +{ + AvahiEntryGroup *tmp; + + tmp = malloc (sizeof (AvahiEntryGroup)); + + tmp->parent = client; - tmp = malloc (sizeof (AvahiClient)); + AVAHI_LLIST_PREPEND(AvahiEntryGroup, groups, client->groups, tmp); return tmp; +fail: + if (tmp) free (tmp); + return NULL; }