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Date:      Wed, 9 May 2001 20:17:08 +0300
From:      Peter Pentchev <roam@orbitel.bg>
To:        Kris Kennaway <kris@obsecurity.org>
Cc:        Rasputin <rara.rasputin@virgin.net>, Paul Herman <pherman@frenchfries.net>, security@FreeBSD.ORG
Subject:   Re: setkey(3) not present in the system
Message-ID:  <20010509201708.D497@ringworld.oblivion.bg>
In-Reply-To: <20010509093849.B40205@xor.obsecurity.org>; from kris@obsecurity.org on Wed, May 09, 2001 at 09:38:50AM -0700
References:  <20010509104313.A47276@dogma.freebsd-uk.eu.org> <Pine.BSF.4.33.0105091234310.79177-100000@husten.security.at12.de> <20010509114907.A48960@dogma.freebsd-uk.eu.org> <20010509135318.B44191@ringworld.oblivion.bg> <20010509042107.A36279@xor.obsecurity.org> <20010509143455.C44191@ringworld.oblivion.bg> <20010509093849.B40205@xor.obsecurity.org>

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On Wed, May 09, 2001 at 09:38:50AM -0700, Kris Kennaway wrote:
> On Wed, May 09, 2001 at 02:34:55PM +0300, Peter Pentchev wrote:
> 
> > > There's something nonstandard about the way it's linking which is
> > > triggering all of the __warn_references() in libc regardless of
> > > whether or not the code actually uses those "dangerous" functions -- I
> > > don't know what it is, but I've seen it a lot in ports.  It's probably
> > > a bug which should be fixed.
> > 
> > Nothing non-standard; the one about setkey() is triggered by just trying
> > to resolve setkey against libc's setkey symbol; similarly for the f_prealloc()
> > one.  It's just that these warnings would never be triggered if the linker
> > saw these symbols in another library, and saw no need to touch these particular
> > object files within libc.
> 
> Yes, I know you get the __warn_references() if you use a libc function
> which has a __warn_references() line -- what happens here is that you
> ALSO get *all* __warn_references() present in the entire library, even
> if you don't use *any* of those functions, if you do the Weird Linker
> Thing.

Oh, I thought you meant this specific case.  In this case, the original
poster was referencing both f_prealloc() and setkey() in his program,
so the warnings should be expected.

G'luck,
Peter

-- 
I've heard that this sentence is a rumor.

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