Re: Cleanup: Replace sscanf with strtol/strtoul in snapmgr

From: Amul Sul <sulamul(at)gmail(dot)com>
To: Tristan Partin <tristan(at)partin(dot)io>
Cc: pgsql-hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org>
Subject: Re: Cleanup: Replace sscanf with strtol/strtoul in snapmgr
Date: 2026-05-05 07:23:33
Message-ID: CAAJ_b974KcAQ=XMBfw-iy2tnbwNk9YnSA5XcQctf7N0GUSDRQA@mail.gmail.com
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On Mon, May 4, 2026 at 9:19 PM Tristan Partin <tristan(at)partin(dot)io> wrote:
>
> On Mon Apr 20, 2026 at 12:07 AM CDT, Amul Sul wrote:
> The patch generally looks good. One comment:
>
> > @@ -1359,17 +1365,36 @@ parseVxidFromText(const char *prefix, char **s, const char *filename,
> > {
> > char *ptr = *s;
> > int prefixlen = strlen(prefix);
> > + long lval;
> > + unsigned long ulval;
>
> Perhaps better variable names would be procNumber and
> localTransactionId.
>

Thanks, Andreas and Tristan, for the review !

I have renamed the variables as suggested but used the shorter forms
procno and xid instead of procNumber and localTransactionId. I also
applied similar changes to parseXidFromText (changing val to xid), but
kept val in parseIntFromText since it seems to be more appropriate for
a generic integer value.

Updated patch attached.

Regards,
Amul

Attachment Content-Type Size
v2-0001-snapmgr-replace-sscanf-with-strtol-strtoul-in-sna.patch application/octet-stream 4.1 KB

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