Magnus Hagander <[EMAIL PROTECTED]> writes:
>> I never actually tested if it crashes on mingw, but looking some more at it
>> it really should - once one of these errors happen.
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> Hm. Much easier than that - the code is new in HEAD. 8.2 did
> fprintf(stderr). And HEAD still does that in at least one case.
> Anyway, I'll go ahead with the patch I wrote since it does Seem Nicer to
> actually use the PQexpbuffer code there, and the patch was rather
> trivial, but it's certainly not something to backpatch then...
It does look like there is a risk in 8.2 and before, though:
the fe-auth.c code has a lot of snprintf's with PQERRORMSG_LENGTH,
which should all be INITIAL_EXPBUFFER_SIZE according to that header
comment. snprintf typically doesn't write more than it has to,
but if there ever were a message exceeding INITIAL_EXPBUFFER_SIZE
we'd be at risk of a memory clobber. So that should be changed
as far back as it does that. Do you want to take care of it?
I can if you don't want to.
regards, tom lane
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