test-ussd: read stdin for Response()s

test/test-ussd

@@ -2,10 +2,13 @@
 
 import sys
 import gobject
+import os
 
 import dbus
 import dbus.mainloop.glib
 
+state = None
+
 def ussd_notification_received(content):
 	print("Network sent a Notification: " + content)
 
@@ -14,9 +17,23 @@ def ussd_request_received(content):
 	ss.Cancel()
 
 def ussd_property_changed(name, value):
+	global state
 	if name != "State":
 		return
 	print("USSD session state is " + value)
+	state = str(value)
+
+def stdin_handler(fd, condition):
+	s = os.read(fd.fileno(), 160).rstrip()
+	if not s:
+		ss.Cancel()
+	elif state == "user-response":
+		print ss.Respond(s, timeout = 100)
+	elif state == "idle":
+		print ss.Initiate(s, timeout = 100)
+	else:
+		print "Invalid state", state
+	return True
 
 if __name__ == "__main__":
 	if (len(sys.argv) < 2):
@@ -44,5 +61,7 @@ if __name__ == "__main__":
 
 	print ss.Initiate(sys.argv[1], timeout=100)
 
+	gobject.io_add_watch(sys.stdin, gobject.IO_IN, stdin_handler)
+
 	mainloop = gobject.MainLoop()
 	mainloop.run()