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Date: Thu, 1 Jun 2006 10:01:27 +0000
From: Alexey Dokuchaev <danfe@FreeBSD.org>
To: Ceri Davies <ceri@submonkey.net>, Greg 'groggy' Lehey <grog@FreeBSD.org>,
	Maxim Konovalov <maxim@FreeBSD.org>, src-committers@FreeBSD.org,
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Subject: Re: cvs commit: src/sys/ufs/ufs ufs_vnops.c
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On Thu, Jun 01, 2006 at 10:49:50AM +0100, Ceri Davies wrote:
> On Thu, Jun 01, 2006 at 12:05:23PM +0930, Greg 'groggy' Lehey wrote:
> > On Wednesday, 31 May 2006 at 13:15:29 +0000, Maxim Konovalov wrote:
> > > maxim       2006-05-31 13:15:29 UTC
> > >
> > >   FreeBSD src repository
> > >
> > >   Modified files:
> > >     sys/ufs/ufs          ufs_vnops.c
> > >   Log:
> > >   o According to POSIX, the result of ftruncate(2) is unspecified
> > >   for file types other than VREG, VDIR and shared memory objects.
> > >   We already handle VREG, VLNK and VDIR cases.  Silently ignore
> > >
> > >   Revision  Changes    Path
> > >   1.276     +22 -4     src/sys/ufs/ufs/ufs_vnops.c
> > 
> > Is this worth a man page update?
> 
> Undoubtedly.  Does the attached look like enough?  I'm not sure if we
> want to add a STANDARDS section for this when it's valid behaviour.
> 
> Ceri
> -- 
> That must be wonderful!  I don't understand it at all.
>                                                   -- Moliere

> Index: src/lib/libc/sys/truncate.2
> ===================================================================
> RCS file: /home/ncvs/src/lib/libc/sys/truncate.2,v
> retrieving revision 1.17
> diff -u -r1.17 truncate.2
> --- src/lib/libc/sys/truncate.2	20 Jan 2005 09:17:05 -0000	1.17
> +++ src/lib/libc/sys/truncate.2	1 Jun 2006 09:47:19 -0000
> @@ -32,7 +32,7 @@
>  .\"     @(#)truncate.2	8.1 (Berkeley) 6/4/93
>  .\" $FreeBSD: src/lib/libc/sys/truncate.2,v 1.17 2005/01/20 09:17:05 ru Exp $
>  .\"
> -.Dd June 4, 1993
> +.Dd June 1, 2006
>  .Dt TRUNCATE 2
>  .Os
>  .Sh NAME
> @@ -69,6 +69,10 @@
>  the file must be open for writing.
>  .Sh RETURN VALUES
>  .Rv -std
> +If the file to be modified is not a directory or
> +a regular file, the
> +.Fn truncate
> +call will return the value 0.

Doesn't "value of 0" sound better?

./danfe