1 /* GDBus - GLib D-Bus Library
3 * Copyright (C) 2008-2010 Red Hat, Inc.
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Lesser General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Lesser General Public License for more details.
15 * You should have received a copy of the GNU Lesser General
16 * Public License along with this library; if not, write to the
17 * Free Software Foundation, Inc., 59 Temple Place, Suite 330,
18 * Boston, MA 02111-1307, USA.
20 * Author: David Zeuthen <davidz@redhat.com>
31 #include "gdbusutils.h"
32 #include "gdbusaddress.h"
33 #include "gdbuserror.h"
34 #include "gioenumtypes.h"
35 #include "gnetworkaddress.h"
36 #include "gsocketclient.h"
37 #include "giostream.h"
38 #include "gasyncresult.h"
39 #include "gsimpleasyncresult.h"
40 #include "gdbusprivate.h"
43 #include <gio/gunixsocketaddress.h>
50 * SECTION:gdbusaddress
51 * @title: D-Bus Addresses
52 * @short_description: D-Bus connection endpoints
55 * Routines for working with D-Bus addresses. A D-Bus address is a string
56 * like "unix:tmpdir=/tmp/my-app-name". The exact format of addresses
57 * is explained in detail in the <link linkend="http://dbus.freedesktop.org/doc/dbus-specification.html#addresses">D-Bus specification</link>.
60 static gchar *get_session_address_platform_specific (GError **error);
62 /* ---------------------------------------------------------------------------------------------------- */
68 * Checks if @string is a D-Bus address.
70 * This doesn't check if @string is actually supported by #GDBusServer
71 * or #GDBusConnection - use g_dbus_is_supported_address() to do more
74 * Returns: %TRUE if @string is a valid D-Bus address, %FALSE otherwise.
79 g_dbus_is_address (const gchar *string)
87 g_return_val_if_fail (string != NULL, FALSE);
89 a = g_strsplit (string, ";", 0);
93 for (n = 0; a[n] != NULL; n++)
95 if (!_g_dbus_address_parse_entry (a[n],
110 is_valid_unix (const gchar *address_entry,
111 GHashTable *key_value_pairs,
119 const gchar *abstract;
127 keys = g_hash_table_get_keys (key_value_pairs);
128 for (l = keys; l != NULL; l = l->next)
130 const gchar *key = l->data;
131 if (g_strcmp0 (key, "path") == 0)
132 path = g_hash_table_lookup (key_value_pairs, key);
133 else if (g_strcmp0 (key, "tmpdir") == 0)
134 tmpdir = g_hash_table_lookup (key_value_pairs, key);
135 else if (g_strcmp0 (key, "abstract") == 0)
136 abstract = g_hash_table_lookup (key_value_pairs, key);
141 G_IO_ERROR_INVALID_ARGUMENT,
142 _("Unsupported key `%s' in address entry `%s'"),
151 if (tmpdir != NULL || abstract != NULL)
154 else if (tmpdir != NULL)
156 if (path != NULL || abstract != NULL)
159 else if (abstract != NULL)
161 if (path != NULL || tmpdir != NULL)
168 G_IO_ERROR_INVALID_ARGUMENT,
169 _("Address `%s' is invalid (need exactly one of path, tmpdir or abstract keys)"),
181 G_IO_ERROR_INVALID_ARGUMENT,
182 _("Meaningless key/value pair combination in address entry `%s'"),
192 is_valid_nonce_tcp (const gchar *address_entry,
193 GHashTable *key_value_pairs,
202 const gchar *nonce_file;
213 keys = g_hash_table_get_keys (key_value_pairs);
214 for (l = keys; l != NULL; l = l->next)
216 const gchar *key = l->data;
217 if (g_strcmp0 (key, "host") == 0)
218 host = g_hash_table_lookup (key_value_pairs, key);
219 else if (g_strcmp0 (key, "port") == 0)
220 port = g_hash_table_lookup (key_value_pairs, key);
221 else if (g_strcmp0 (key, "family") == 0)
222 family = g_hash_table_lookup (key_value_pairs, key);
223 else if (g_strcmp0 (key, "noncefile") == 0)
224 nonce_file = g_hash_table_lookup (key_value_pairs, key);
229 G_IO_ERROR_INVALID_ARGUMENT,
230 _("Unsupported key `%s' in address entry `%s'"),
239 port_num = strtol (port, &endp, 10);
240 if ((*port == '\0' || *endp != '\0') || port_num < 0 || port_num >= 65536)
244 G_IO_ERROR_INVALID_ARGUMENT,
245 _("Error in address `%s' - the port attribute is malformed"),
251 if (family != NULL && !(g_strcmp0 (family, "ipv4") == 0 || g_strcmp0 (family, "ipv6") == 0))
255 G_IO_ERROR_INVALID_ARGUMENT,
256 _("Error in address `%s' - the family attribute is malformed"),
270 is_valid_tcp (const gchar *address_entry,
271 GHashTable *key_value_pairs,
289 keys = g_hash_table_get_keys (key_value_pairs);
290 for (l = keys; l != NULL; l = l->next)
292 const gchar *key = l->data;
293 if (g_strcmp0 (key, "host") == 0)
294 host = g_hash_table_lookup (key_value_pairs, key);
295 else if (g_strcmp0 (key, "port") == 0)
296 port = g_hash_table_lookup (key_value_pairs, key);
297 else if (g_strcmp0 (key, "family") == 0)
298 family = g_hash_table_lookup (key_value_pairs, key);
303 G_IO_ERROR_INVALID_ARGUMENT,
304 _("Unsupported key `%s' in address entry `%s'"),
313 port_num = strtol (port, &endp, 10);
314 if ((*port == '\0' || *endp != '\0') || port_num < 0 || port_num >= 65536)
318 G_IO_ERROR_INVALID_ARGUMENT,
319 _("Error in address `%s' - the port attribute is malformed"),
325 if (family != NULL && !(g_strcmp0 (family, "ipv4") == 0 || g_strcmp0 (family, "ipv6") == 0))
329 G_IO_ERROR_INVALID_ARGUMENT,
330 _("Error in address `%s' - the family attribute is malformed"),
344 * g_dbus_is_supported_address:
346 * @error: Return location for error or %NULL.
348 * Like g_dbus_is_address() but also checks if the library suppors the
349 * transports in @string and that key/value pairs for each transport
352 * Returns: %TRUE if @string is a valid D-Bus address that is
353 * supported by this library, %FALSE if @error is set.
358 g_dbus_is_supported_address (const gchar *string,
367 g_return_val_if_fail (string != NULL, FALSE);
368 g_return_val_if_fail (error == NULL || *error == NULL, FALSE);
370 a = g_strsplit (string, ";", 0);
371 for (n = 0; a[n] != NULL; n++)
373 gchar *transport_name;
374 GHashTable *key_value_pairs;
377 if (!_g_dbus_address_parse_entry (a[n],
384 if (g_strcmp0 (transport_name, "unix") == 0)
385 supported = is_valid_unix (a[n], key_value_pairs, error);
386 else if (g_strcmp0 (transport_name, "tcp") == 0)
387 supported = is_valid_tcp (a[n], key_value_pairs, error);
388 else if (g_strcmp0 (transport_name, "nonce-tcp") == 0)
389 supported = is_valid_nonce_tcp (a[n], key_value_pairs, error);
390 else if (g_strcmp0 (a[n], "autolaunch:") == 0)
393 g_free (transport_name);
394 g_hash_table_unref (key_value_pairs);
405 g_assert (ret || (!ret && (error == NULL || *error != NULL)));
411 _g_dbus_address_parse_entry (const gchar *address_entry,
412 gchar **out_transport_name,
413 GHashTable **out_key_value_pairs,
417 GHashTable *key_value_pairs;
418 gchar *transport_name;
425 transport_name = NULL;
426 key_value_pairs = NULL;
428 s = strchr (address_entry, ':');
433 G_IO_ERROR_INVALID_ARGUMENT,
434 _("Address element `%s', does not contain a colon (:)"),
439 transport_name = g_strndup (address_entry, s - address_entry);
440 key_value_pairs = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, g_free);
442 kv_pairs = g_strsplit (s + 1, ",", 0);
443 for (n = 0; kv_pairs != NULL && kv_pairs[n] != NULL; n++)
445 const gchar *kv_pair = kv_pairs[n];
449 s = strchr (kv_pair, '=');
454 G_IO_ERROR_INVALID_ARGUMENT,
455 _("Key/Value pair %d, `%s', in address element `%s', does not contain an equal sign"),
462 key = g_uri_unescape_segment (kv_pair, s, NULL);
463 value = g_uri_unescape_segment (s + 1, kv_pair + strlen (kv_pair), NULL);
464 if (key == NULL || value == NULL)
468 G_IO_ERROR_INVALID_ARGUMENT,
469 _("Error unescaping key or value in Key/Value pair %d, `%s', in address element `%s'"),
477 g_hash_table_insert (key_value_pairs, key, value);
483 g_strfreev (kv_pairs);
486 if (out_transport_name != NULL)
487 *out_transport_name = transport_name;
489 g_free (transport_name);
490 if (out_key_value_pairs != NULL)
491 *out_key_value_pairs = key_value_pairs;
492 else if (key_value_pairs != NULL)
493 g_hash_table_unref (key_value_pairs);
497 g_free (transport_name);
498 if (key_value_pairs != NULL)
499 g_hash_table_unref (key_value_pairs);
504 /* ---------------------------------------------------------------------------------------------------- */
507 g_dbus_address_try_connect_one (const gchar *address_entry,
509 GCancellable *cancellable,
512 /* TODO: Declare an extension point called GDBusTransport (or similar)
513 * and move code below to extensions implementing said extension
514 * point. That way we can implement a D-Bus transport over X11 without
515 * making libgio link to libX11...
518 g_dbus_address_connect (const gchar *address_entry,
519 const gchar *transport_name,
520 GHashTable *key_value_pairs,
521 GCancellable *cancellable,
525 GSocketConnectable *connectable;
526 const gchar *nonce_file;
536 else if (g_strcmp0 (transport_name, "unix") == 0)
539 const gchar *abstract;
540 path = g_hash_table_lookup (key_value_pairs, "path");
541 abstract = g_hash_table_lookup (key_value_pairs, "abstract");
542 if ((path == NULL && abstract == NULL) || (path != NULL && abstract != NULL))
546 G_IO_ERROR_INVALID_ARGUMENT,
547 _("Error in address `%s' - the unix transport requires exactly one of the "
548 "keys `path' or `abstract' to be set"),
551 else if (path != NULL)
553 connectable = G_SOCKET_CONNECTABLE (g_unix_socket_address_new (path));
555 else if (abstract != NULL)
557 connectable = G_SOCKET_CONNECTABLE (g_unix_socket_address_new_with_type (abstract,
559 G_UNIX_SOCKET_ADDRESS_ABSTRACT));
563 g_assert_not_reached ();
567 else if (g_strcmp0 (transport_name, "tcp") == 0 || g_strcmp0 (transport_name, "nonce-tcp") == 0)
575 is_nonce = (g_strcmp0 (transport_name, "nonce-tcp") == 0);
577 host = g_hash_table_lookup (key_value_pairs, "host");
582 G_IO_ERROR_INVALID_ARGUMENT,
583 _("Error in address `%s' - the host attribute is missing or malformed"),
588 s = g_hash_table_lookup (key_value_pairs, "port");
591 port = strtol (s, &endp, 10);
592 if ((*s == '\0' || *endp != '\0') || port < 0 || port >= 65536)
596 G_IO_ERROR_INVALID_ARGUMENT,
597 _("Error in address `%s' - the port attribute is missing or malformed"),
605 nonce_file = g_hash_table_lookup (key_value_pairs, "noncefile");
606 if (nonce_file == NULL)
610 G_IO_ERROR_INVALID_ARGUMENT,
611 _("Error in address `%s' - the noncefile attribute is missing or malformed"),
617 /* TODO: deal with family key/value-pair */
618 connectable = g_network_address_new (host, port);
620 else if (g_strcmp0 (address_entry, "autolaunch:") == 0)
622 gchar *autolaunch_address;
623 autolaunch_address = get_session_address_platform_specific (error);
624 if (autolaunch_address != NULL)
626 ret = g_dbus_address_try_connect_one (autolaunch_address, NULL, cancellable, error);
627 g_free (autolaunch_address);
632 g_prefix_error (error, _("Error auto-launching: "));
639 G_IO_ERROR_INVALID_ARGUMENT,
640 _("Unknown or unsupported transport `%s' for address `%s'"),
645 if (connectable != NULL)
647 GSocketClient *client;
648 GSocketConnection *connection;
650 g_assert (ret == NULL);
651 client = g_socket_client_new ();
652 connection = g_socket_client_connect (client,
656 g_object_unref (connectable);
657 g_object_unref (client);
658 if (connection == NULL)
661 ret = G_IO_STREAM (connection);
663 if (nonce_file != NULL)
665 gchar nonce_contents[16 + 1];
666 size_t num_bytes_read;
669 /* be careful to read only 16 bytes - we also check that the file is only 16 bytes long */
670 f = fopen (nonce_file, "rb");
675 G_IO_ERROR_INVALID_ARGUMENT,
676 _("Error opening nonce file `%s': %s"),
679 g_object_unref (ret);
683 num_bytes_read = fread (nonce_contents,
687 if (num_bytes_read != 16)
689 if (num_bytes_read == 0)
693 G_IO_ERROR_INVALID_ARGUMENT,
694 _("Error reading from nonce file `%s': %s"),
702 G_IO_ERROR_INVALID_ARGUMENT,
703 _("Error reading from nonce file `%s', expected 16 bytes, got %d"),
705 (gint) num_bytes_read);
707 g_object_unref (ret);
714 if (!g_output_stream_write_all (g_io_stream_get_output_stream (ret),
721 g_prefix_error (error, _("Error writing contents of nonce file `%s' to stream:"), nonce_file);
722 g_object_unref (ret);
735 g_dbus_address_try_connect_one (const gchar *address_entry,
737 GCancellable *cancellable,
741 GHashTable *key_value_pairs;
742 gchar *transport_name;
746 transport_name = NULL;
747 key_value_pairs = NULL;
749 if (!_g_dbus_address_parse_entry (address_entry,
755 ret = g_dbus_address_connect (address_entry,
763 guid = g_hash_table_lookup (key_value_pairs, "guid");
764 if (guid != NULL && out_guid != NULL)
765 *out_guid = g_strdup (guid);
768 g_free (transport_name);
769 if (key_value_pairs != NULL)
770 g_hash_table_unref (key_value_pairs);
775 /* ---------------------------------------------------------------------------------------------------- */
784 get_stream_data_free (GetStreamData *data)
786 g_free (data->address);
787 if (data->stream != NULL)
788 g_object_unref (data->stream);
794 get_stream_thread_func (GSimpleAsyncResult *res,
796 GCancellable *cancellable)
801 data = g_simple_async_result_get_op_res_gpointer (res);
804 data->stream = g_dbus_address_get_stream_sync (data->address,
808 if (data->stream == NULL)
810 g_simple_async_result_set_from_error (res, error);
811 g_error_free (error);
816 * g_dbus_address_get_stream:
817 * @address: A valid D-Bus address.
818 * @cancellable: A #GCancellable or %NULL.
819 * @callback: A #GAsyncReadyCallback to call when the request is satisfied.
820 * @user_data: Data to pass to @callback.
822 * Asynchronously connects to an endpoint specified by @address and
823 * sets up the connection so it is in a state to run the client-side
824 * of the D-Bus authentication conversation.
826 * When the operation is finished, @callback will be invoked. You can
827 * then call g_dbus_address_get_stream_finish() to get the result of
830 * This is an asynchronous failable function. See
831 * g_dbus_address_get_stream_sync() for the synchronous version.
836 g_dbus_address_get_stream (const gchar *address,
837 GCancellable *cancellable,
838 GAsyncReadyCallback callback,
841 GSimpleAsyncResult *res;
844 g_return_if_fail (address != NULL);
846 res = g_simple_async_result_new (NULL,
849 g_dbus_address_get_stream);
850 data = g_new0 (GetStreamData, 1);
851 data->address = g_strdup (address);
852 g_simple_async_result_set_op_res_gpointer (res,
854 (GDestroyNotify) get_stream_data_free);
855 g_simple_async_result_run_in_thread (res,
856 get_stream_thread_func,
859 g_object_unref (res);
863 * g_dbus_address_get_stream_finish:
864 * @res: A #GAsyncResult obtained from the GAsyncReadyCallback passed to g_dbus_address_get_stream().
865 * @out_guid: %NULL or return location to store the GUID extracted from @address, if any.
866 * @error: Return location for error or %NULL.
868 * Finishes an operation started with g_dbus_address_get_stream().
870 * Returns: A #GIOStream or %NULL if @error is set.
875 g_dbus_address_get_stream_finish (GAsyncResult *res,
879 GSimpleAsyncResult *simple = G_SIMPLE_ASYNC_RESULT (res);
883 g_return_val_if_fail (G_IS_ASYNC_RESULT (res), NULL);
884 g_return_val_if_fail (error == NULL || *error == NULL, NULL);
886 g_warn_if_fail (g_simple_async_result_get_source_tag (simple) == g_dbus_address_get_stream);
890 data = g_simple_async_result_get_op_res_gpointer (simple);
891 if (g_simple_async_result_propagate_error (simple, error))
894 ret = g_object_ref (data->stream);
895 if (out_guid != NULL)
896 *out_guid = g_strdup (data->guid);
903 * g_dbus_address_get_stream_sync:
904 * @address: A valid D-Bus address.
905 * @out_guid: %NULL or return location to store the GUID extracted from @address, if any.
906 * @cancellable: A #GCancellable or %NULL.
907 * @error: Return location for error or %NULL.
909 * Synchronously connects to an endpoint specified by @address and
910 * sets up the connection so it is in a state to run the client-side
911 * of the D-Bus authentication conversation.
913 * This is a synchronous failable function. See
914 * g_dbus_address_get_stream() for the asynchronous version.
916 * Returns: A #GIOStream or %NULL if @error is set.
921 g_dbus_address_get_stream_sync (const gchar *address,
923 GCancellable *cancellable,
931 g_return_val_if_fail (address != NULL, NULL);
932 g_return_val_if_fail (error == NULL || *error == NULL, NULL);
937 addr_array = g_strsplit (address, ";", 0);
938 if (addr_array[0] == NULL)
940 last_error = g_error_new_literal (G_IO_ERROR,
941 G_IO_ERROR_INVALID_ARGUMENT,
942 _("The given address is empty"));
946 for (n = 0; addr_array != NULL && addr_array[n] != NULL; n++)
948 const gchar *addr = addr_array[n];
952 ret = g_dbus_address_try_connect_one (addr,
962 g_assert (this_error != NULL);
963 if (last_error != NULL)
964 g_error_free (last_error);
965 last_error = this_error;
972 if (last_error != NULL)
973 g_error_free (last_error);
977 g_assert (last_error != NULL);
978 g_propagate_error (error, last_error);
981 g_strfreev (addr_array);
985 /* ---------------------------------------------------------------------------------------------------- */
989 get_session_address_dbus_launch (GError **error)
994 gchar *launch_stdout;
995 gchar *launch_stderr;
997 gchar *old_dbus_verbose;
998 gboolean restore_dbus_verbose;
1002 command_line = NULL;
1003 launch_stdout = NULL;
1004 launch_stderr = NULL;
1005 restore_dbus_verbose = FALSE;
1006 old_dbus_verbose = NULL;
1008 machine_id = _g_dbus_get_machine_id (error);
1009 if (machine_id == NULL)
1011 g_prefix_error (error, _("Cannot spawn a message bus without a machine-id: "));
1015 /* We're using private libdbus facilities here. When everything
1016 * (X11, Mac OS X, Windows) is spec'ed out correctly (not even the
1017 * X11 property is correctly documented right now) we should
1018 * consider using the spec instead of dbus-launch.
1020 * --autolaunch=MACHINEID
1021 * This option implies that dbus-launch should scan for a previ‐
1022 * ously-started session and reuse the values found there. If no
1023 * session is found, it will start a new session. The --exit-with-
1024 * session option is implied if --autolaunch is given. This option
1025 * is for the exclusive use of libdbus, you do not want to use it
1026 * manually. It may change in the future.
1029 /* TODO: maybe provide a variable for where to look for the dbus-launch binary? */
1030 command_line = g_strdup_printf ("dbus-launch --autolaunch=%s --binary-syntax --close-stderr", machine_id);
1032 if (G_UNLIKELY (_g_dbus_debug_address ()))
1034 _g_dbus_debug_print_lock ();
1035 g_print ("GDBus-debug:Address: Running `%s' to get bus address (possibly autolaunching)\n", command_line);
1036 old_dbus_verbose = g_strdup (g_getenv ("DBUS_VERBOSE"));
1037 restore_dbus_verbose = TRUE;
1038 g_setenv ("DBUS_VERBOSE", "1", TRUE);
1039 _g_dbus_debug_print_unlock ();
1042 if (!g_spawn_command_line_sync (command_line,
1048 g_prefix_error (error, _("Error spawning command line `%s': "), command_line);
1052 if (!WIFEXITED (exit_status))
1054 gchar *escaped_stderr;
1055 escaped_stderr = g_strescape (launch_stderr, "");
1059 _("Abnormal program termination spawning command line `%s': %s"),
1062 g_free (escaped_stderr);
1066 if (WEXITSTATUS (exit_status) != 0)
1068 gchar *escaped_stderr;
1069 escaped_stderr = g_strescape (launch_stderr, "");
1073 _("Command line `%s' exited with non-zero exit status %d: %s"),
1075 WEXITSTATUS (exit_status),
1077 g_free (escaped_stderr);
1081 /* From the dbus-launch(1) man page:
1083 * --binary-syntax Write to stdout a nul-terminated bus address,
1084 * then the bus PID as a binary integer of size sizeof(pid_t),
1085 * then the bus X window ID as a binary integer of size
1086 * sizeof(long). Integers are in the machine's byte order, not
1087 * network byte order or any other canonical byte order.
1089 ret = g_strdup (launch_stdout);
1092 if (G_UNLIKELY (_g_dbus_debug_address ()))
1095 _g_dbus_debug_print_lock ();
1096 g_print ("GDBus-debug:Address: dbus-launch output:");
1097 if (launch_stdout != NULL)
1099 s = _g_dbus_hexdump (launch_stdout, strlen (launch_stdout) + 1 + sizeof (pid_t) + sizeof (long), 2);
1100 g_print ("\n%s", s);
1105 g_print (" (none)\n");
1107 g_print ("GDBus-debug:Address: dbus-launch stderr output:");
1108 if (launch_stderr != NULL)
1109 g_print ("\n%s", launch_stderr);
1111 g_print (" (none)\n");
1112 _g_dbus_debug_print_unlock ();
1115 g_free (machine_id);
1116 g_free (command_line);
1117 g_free (launch_stdout);
1118 g_free (launch_stderr);
1119 if (G_UNLIKELY (restore_dbus_verbose))
1121 if (old_dbus_verbose != NULL)
1122 g_setenv ("DBUS_VERBOSE", old_dbus_verbose, TRUE);
1124 g_unsetenv ("DBUS_VERBOSE");
1126 g_free (old_dbus_verbose);
1131 /* ---------------------------------------------------------------------------------------------------- */
1134 get_session_address_platform_specific (GError **error)
1138 /* need to handle OS X in a different way since `dbus-launch --autolaunch' probably won't work there */
1139 ret = get_session_address_dbus_launch (error);
1141 /* TODO: implement for UNIX, Win32 and OS X */
1146 _("Cannot determine session bus address (not implemented for this OS)"));
1151 /* ---------------------------------------------------------------------------------------------------- */
1154 * g_dbus_address_get_for_bus_sync:
1155 * @bus_type: A #GBusType.
1156 * @cancellable: A #GCancellable or %NULL.
1157 * @error: Return location for error or %NULL.
1159 * Synchronously looks up the D-Bus address for the well-known message
1160 * bus instance specified by @bus_type. This may involve using various
1161 * platform specific mechanisms.
1163 * Returns: A valid D-Bus address string for @bus_type or %NULL if @error is set.
1168 g_dbus_address_get_for_bus_sync (GBusType bus_type,
1169 GCancellable *cancellable,
1173 const gchar *starter_bus;
1174 GError *local_error;
1176 g_return_val_if_fail (error == NULL || *error == NULL, NULL);
1181 if (G_UNLIKELY (_g_dbus_debug_address ()))
1184 _g_dbus_debug_print_lock ();
1185 g_print ("GDBus-debug:Address: In g_dbus_address_get_for_bus_sync() for bus type `%s'\n",
1186 _g_dbus_enum_to_string (G_TYPE_BUS_TYPE, bus_type));
1187 for (n = 0; n < 3; n++)
1193 case 0: k = "DBUS_SESSION_BUS_ADDRESS"; break;
1194 case 1: k = "DBUS_SYSTEM_BUS_ADDRESS"; break;
1195 case 2: k = "DBUS_STARTER_BUS_TYPE"; break;
1196 default: g_assert_not_reached ();
1199 g_print ("GDBus-debug:Address: env var %s", k);
1201 g_print ("=`%s'\n", v);
1203 g_print (" is not set\n");
1205 _g_dbus_debug_print_unlock ();
1210 case G_BUS_TYPE_SYSTEM:
1211 ret = g_strdup (g_getenv ("DBUS_SYSTEM_BUS_ADDRESS"));
1214 ret = g_strdup ("unix:path=/var/run/dbus/system_bus_socket");
1218 case G_BUS_TYPE_SESSION:
1219 ret = g_strdup (g_getenv ("DBUS_SESSION_BUS_ADDRESS"));
1222 ret = get_session_address_platform_specific (&local_error);
1226 case G_BUS_TYPE_STARTER:
1227 starter_bus = g_getenv ("DBUS_STARTER_BUS_TYPE");
1228 if (g_strcmp0 (starter_bus, "session") == 0)
1230 ret = g_dbus_address_get_for_bus_sync (G_BUS_TYPE_SESSION, cancellable, &local_error);
1233 else if (g_strcmp0 (starter_bus, "system") == 0)
1235 ret = g_dbus_address_get_for_bus_sync (G_BUS_TYPE_SYSTEM, cancellable, &local_error);
1240 if (starter_bus != NULL)
1242 g_set_error (&local_error,
1245 _("Cannot determine bus address from DBUS_STARTER_BUS_TYPE environment variable"
1246 " - unknown value `%s'"),
1251 g_set_error_literal (&local_error,
1254 _("Cannot determine bus address because the DBUS_STARTER_BUS_TYPE environment "
1255 "variable is not set"));
1261 g_set_error (&local_error,
1264 _("Unknown bus type %d"),
1270 if (G_UNLIKELY (_g_dbus_debug_address ()))
1272 _g_dbus_debug_print_lock ();
1275 g_print ("GDBus-debug:Address: Returning address `%s' for bus type `%s'\n",
1277 _g_dbus_enum_to_string (G_TYPE_BUS_TYPE, bus_type));
1281 g_print ("GDBus-debug:Address: Cannot look-up address bus type `%s': %s\n",
1282 _g_dbus_enum_to_string (G_TYPE_BUS_TYPE, bus_type),
1283 local_error->message);
1285 _g_dbus_debug_print_unlock ();
1288 if (local_error != NULL)
1289 g_propagate_error (error, local_error);