Hi Denis,
>
> Hi Guillaume,
>
> >>> - switch (dcs) {
> >>> + switch (dcs & 0x06) {
> >>
> >> Do you mean to bitwise and with 0xc here? Otherwise you break the
> UCS2
> >> case. Also do any SIMs use the '1111' Coding Bits Entry entry from
> >> 23.038 Section 4? If so, then we need to use sms_dcs_decode to
> >> retrieve
> >> the character set.
> >
> > Yes you are right. I did a bit-shifting error in my mask and don't
> see it during my test.
> > It's 0xc and not 0x6 to use for the mask.
> >
> > The issue that I've is effectively due to the fact that some SIMs use
> the '1111' Coding Bits Entry (it's the case for French Orange SIM card
> for example). For me having the upper bits set to '1' do not really
> changes the character set decoding (only diff is that UCS2 will not be
> possible in that case). It's the reason why I've simply add a mask in
> the decode_text function. Using the sms_dcs_decode function is probably
> better as the DCS of the SIM ToolKit is the same as the one used for
> SMS.
> >
> > Do you want that I re-publish a patch using the sms_dcs_decode
> function?
>
> Bitwise shifting with 0x0c would work. However, to be safe we might
> just be extra pedantic and check that the DCS the SIM sends to us is
> actually valid.
>
I agree.
I will rewrite my patch using the sms_dcs_decode function to secure this.
Regards,
Guillaume
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