Exotic SSIDs

[Utumno]

Should they only contain ASCII characters ? Are some characters disallowed ? Can it contain newlines and control characters (in particularNUL (\0) but also SQH and other non printable characters) ? What about leading/trailing spaces ?

Probably the answer to those questions is yes - and also can contain UTF-8.
See also : http://www.wirelessforums.org/alt-internet-wireless/ssid-33892.html

Apparently one needs native code to do this : You need to deal directly with the wifi service to get the raw scan result. The results are different from devices and drivers. If you only need it to work on one device, it wouldn't take much time

Apparently there are issues with exotic SSIDs and android anyway : http://code.google.com/p/android/issues/detail?id=8035