1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
|
/* $Id$ */
/***
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.
***/
#include <glib.h>
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#define DBUS_API_SUBJECT_TO_CHANGE
#include <dbus/dbus.h>
#include <dbus/dbus-glib-lowlevel.h>
#include "dbus-protocol.h"
static DBusConnection *bus = NULL;
static DBusHandlerResult
do_register (DBusConnection *conn, DBusMessage *message)
{
DBusError error;
char *s;
dbus_error_init (&error);
dbus_message_get_args (message, &error,
DBUS_TYPE_STRING, &s,
DBUS_TYPE_INVALID);
if (dbus_error_is_set (&error))
{
g_warning ("Error parsing register attempt");
dbus_error_free (&error);
return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
}
g_message ("Register received from: %s (dbus:% s)", s, dbus_message_get_sender (message));
return DBUS_HANDLER_RESULT_HANDLED;
}
static DBusHandlerResult
signal_filter (DBusConnection *conn, DBusMessage *message, void *user_data)
{
GMainLoop *loop = user_data;
DBusError error;
dbus_error_init (&error);
g_message ("dbus: interface=%s, path=%s, member=%s",
dbus_message_get_interface (message),
dbus_message_get_path (message),
dbus_message_get_member (message));
if (dbus_message_is_signal (message,
#ifdef DBUS_USE_NEW_API
DBUS_INTERFACE_LOCAL,
#else
DBUS_INTERFACE_ORG_FREEDESKTOP_LOCAL,
#endif
"Disconnected"))
{
/* No, we shouldn't quit, but until we get somewhere
* usefull such that we can restore our state, we will */
g_warning ("Disconnnected from d-bus, terminating...");
g_main_loop_quit (loop);
return DBUS_HANDLER_RESULT_HANDLED;
} else if (dbus_message_is_method_call (message, DBUS_SERVICE_AVAHI,
"Register"))
{
return do_register (conn, message);
} else if (dbus_message_is_signal (message,
#ifdef DBUS_USE_NEW_API
DBUS_INTERFACE_DBUS,
"NameAcquired"))
#else
DBUS_INTERFACE_ORG_FREEDESKTOP_DBUS,
"ServiceAcquired"))
#endif
{
char *name;
dbus_message_get_args (message, &error,
DBUS_TYPE_STRING, &name,
DBUS_TYPE_INVALID);
if (dbus_error_is_set (&error))
{
g_warning ("Error parsing NameAcquired message");
dbus_error_free (&error);
return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
}
g_message ("dbus: ServiceAcquired (%s)", name);
return DBUS_HANDLER_RESULT_HANDLED;
}
g_message ("dbus: missed event");
return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
}
int
dbus_protocol_setup (GMainLoop *loop)
{
DBusError error;
dbus_error_init (&error);
bus = dbus_bus_get (DBUS_BUS_SYSTEM, &error);
if (bus == NULL)
{
g_warning ("dbus_bus_get(): %s", error.message);
dbus_error_free (&error);
return 1;
}
dbus_connection_setup_with_g_main (bus, NULL);
dbus_connection_set_exit_on_disconnect (bus, FALSE);
#ifdef DBUS_USE_NEW_API
dbus_bus_request_name (bus, DBUS_SERVICE_AVAHI, 0, &error);
#else
dbus_bus_acquire_service (bus, DBUS_SERVICE_AVAHI, 0, &error);
#endif
if (dbus_error_is_set (&error))
{
g_warning ("dbus_error_is_set (): %s", error.message);
dbus_error_free (&error);
return 1;
}
dbus_connection_add_filter (bus, signal_filter, loop, NULL);
dbus_bus_add_match (bus,
"type='method_call',interface='org.freedesktop.Avahi'",
&error);
if (dbus_error_is_set (&error))
{
g_warning ("dbus_bus_add_match (): %s", error.message);
dbus_error_free (&error);
return 1;
}
return 0;
}
void
dbus_protocol_shutdown ()
{
if (bus) {
dbus_connection_disconnect(bus);
dbus_connection_unref(bus);
}
}
|
