This method will try to convert the input string to UTF-8. The input string is
supposed to be in the given charset; or otherwise is supposed to be the hex
representation of the string in the given charset.
The existing gsm_pack() had a bug where if the last
septet should be in an octet by itself, that last
octet wouldn't be added. Plus, kinda pointless to
use a GByteArray here when we already know what the
length will be through simple arithmetic.
We can also simplify the function too.
Furthermore, there weren't any testcases for starting
packing at an offset other than zero, so add one.
Change interface to take the number of GSM characters
rather than the number of octets, so that it is possible to
distinguish the 7-character and 8-character cases.
Apparently g_convert() can still return garbage that's not valid in
the character set you're converting to (???). But even if we don't
need to convert the operator name, make sure it's valid UTF-8 before
we go shoving it through D-Bus.
Aleksander Morgado
Dan Williams
Nathan Williams
Torgny Johansson