Unable to determine the address of the message bus

[wang baisheng]

hi,
	I run the dbus as follwoing commands

		dbus-daemon --system &
		dbus-daemon --session &

	then I connect thes system bus using 
		bus = dbus_bus_get (DBUS_BUS_SYSTEM, &error);
	it's ok.

	but when I connect thes session bus using
		bus = dbus_bus_get (DBUS_BUS_SYSTEM, &error);
	it's a problem : Unable to determine the address of the message bus.

	My session bus socket: /tmp/session_bus_socket, 
	system bus socket: /usr/var/run/dbus/system_bus_socket.

	Hope you give me some help!

	Best Regards,
	Wang Baisheng