Re: Fix possible bogus array out of bonds (src/backend/access/brin/brin_minmax_multi.c)

From: Ranier Vilela <ranier(dot)vf(at)gmail(dot)com>
To: David Rowley <dgrowleyml(at)gmail(dot)com>
Cc: Tomas Vondra <tomas(dot)vondra(at)enterprisedb(dot)com>, Justin Pryzby <pryzby(at)telsasoft(dot)com>, Kyotaro Horiguchi <horikyota(dot)ntt(at)gmail(dot)com>, pgsql-hackers(at)postgresql(dot)org
Subject: Re: Fix possible bogus array out of bonds (src/backend/access/brin/brin_minmax_multi.c)
Date: 2022-09-06 11:25:22
Message-ID: CAEudQAodxAjFiCXT+Qm17=fcPT_9YhW9qa64cqdorfEXPpT6Dg@mail.gmail.com
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Em seg., 5 de set. de 2022 às 23:02, David Rowley <dgrowleyml(at)gmail(dot)com>
escreveu:

> On Tue, 6 Sept 2022 at 13:52, Ranier Vilela <ranier(dot)vf(at)gmail(dot)com> wrote:
> >
> > Em seg., 5 de set. de 2022 às 22:29, David Rowley <dgrowleyml(at)gmail(dot)com>
> escreveu:
> >> It feels like it would be good if we had a way to detect a few of
> >> these issues much earlier than we are currently. There's been a long
> >> series of commits fixing up this sort of thing. If we had a tool to
> >> parse the .c files and look for things like a function call to
> >> appendPQExpBuffer() and appendStringInfo() with only 2 parameters (i.e
> >> no va_arg arguments).
> >
> > StaticAssert could check va_arg no?
>
> I'm not sure exactly what you have in mind. If you think you have a
> way to make that work, it would be good to see a patch with it.
>
I will study the matter.
But first, I would like to continue with this correction of using strings.
In the following cases:
fprintf -> fputs -> fputc
printf -> puts -> putchar

There are many occurrences, do you think it would be worth the effort?

regards,
Ranier Vilela

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