Re: [pgadmin-hackers] Client-side password encryption

From: Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us>
To: Martijn van Oosterhout <kleptog(at)svana(dot)org>
Cc: Andreas Pflug <pgadmin(at)pse-consulting(dot)de>, Magnus Hagander <mha(at)sollentuna(dot)net>, Dave Page <dpage(at)vale-housing(dot)co(dot)uk>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Christopher Kings-Lynne <chriskl(at)familyhealth(dot)com(dot)au>, Peter Eisentraut <peter_e(at)gmx(dot)net>, pgsql-hackers(at)postgresql(dot)org
Subject: Re: [pgadmin-hackers] Client-side password encryption
Date: 2005-12-22 02:31:08
Message-ID: 200512220231.jBM2V8A26751@candle.pha.pa.us
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Martijn van Oosterhout wrote:
-- Start of PGP signed section.
> On Wed, Dec 21, 2005 at 02:51:46PM -0500, Bruce Momjian wrote:
> > If you add a version number to the Win32 libpq name, you have to update
> > any command-line compile tools that mention libpq after an upgrade. The
> > Unix linker knows about version numbers, but the Win32 linker doesn't,
> > so adding version numbers does add quite a bit of chaos to the Win32
> > compile world.
>
> The funny thing about it is that the UNIX linker doesn't know about
> version numbers at all. It just looks for a lib<libname>.so (no
> version) which is symlinked to the actual version to use. Thus just by
> changing a few symlinks you can control which library version is linked
> in. Delete the .so and the linker won't find the library anymore (and
> fall back to the .a lib) though runtime users still will find it
> because they *do* have the version number, which is extracted from the
> library itself.

Yes, important distinction. Thanks for the clarification.

--
Bruce Momjian | http://candle.pha.pa.us
pgman(at)candle(dot)pha(dot)pa(dot)us | (610) 359-1001
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