[freetds] Possible bug with extended ASCII
Lowden, James K
LowdenJK at bernstein.com
Fri May 9 11:10:06 EDT 2003
> Date: Thu, 8 May 2003 17:17:23 -0600
> From: Craig Davison <cd at securityfocus.com>
> After I upgraded to freetds 0.61 from 0.60, I noticed that queries that
> contained extended ASCII characters would fail.
> Here's an example query that should return an empty rowset if it succeeds:
> select uid from master..sysusers where name = 'Ã'
> The character between the '' is Ã, the capital A tilde character. You can
> type it with Alt-195 on a PC.
> Was this never a valid character to have in a query, or was there a bug
> introduced sometime between freetds 0.60 and 0.61?
It's a valid query. You can put absolutely anything between single quotes.
FreeTDS is apparently not recognizing your client character set; that would
cause it to substitute a '?' (no quotes) for the 'Ã'. Does the log show
I'll have a look at this over the weekend. Frediano asked me to repackage
0.61 with some updates. I'd like to fix or at least document this
behavior in 0.61[.1] if I can confirm it.
We should have a unit test for this....
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