Re: [PATCH 11/67] policycoreutils: setfiles: FIXME switch from stat to

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On Fri, 2011-09-16 at 15:07 +0200, Guido Trentalancia wrote:
> On Fri, 2011-09-16 at 08:41 -0400, Stephen Smalley wrote:
> > On Fri, 2011-09-16 at 09:13 +0200, Guido Trentalancia wrote:
> > > On Thu, 2011-09-15 at 15:16 -0400, Daniel J Walsh wrote:
> > > > From 1268e66e94286a55c399383d5959734d3597792d Mon Sep 17 00:00:00 2001
> > > > From: Eric Paris <eparis@xxxxxxxxxx>
> > > > Date: Sun, 10 Jul 2011 16:54:25 +0200
> > > > Subject: [PATCH 11/67] policycoreutils: setfiles: FIXME switch from
> > > > stat to
> > > >  stat64
> > > > 
> > > > This looks bad.  glibc takes care of this.  We should do send this
> > > > upstream but I would like to know why you did it in Fedora....
> > > > 
> > > > NOT-Signed-off-by: Eric Paris <eparis@xxxxxxxxxx>
> > > > ---
> > > >  policycoreutils/setfiles/restore.c |    8 ++++----
> > > >  1 files changed, 4 insertions(+), 4 deletions(-) 
> > > 
> > > Perhaps you could exploit a few #ifdef's here ?
> > > 
> > > Such as _LARGEFILE_SOURCE _LARGEFILE64_SOURCE and/or
> > > _FILE_OFFSET_BITS=64 ?
> > > 
> > > More available from:
> > > 
> > > info libc 'Feature Test Macros'
> > 
> > We were doing that before converting setfiles from using nftw(3) to
> > using fts(3) for the file tree walk.  But fts.h has this gem:
> > /* The fts interface is incompatible with the LFS interface which
> >    transparently uses the 64-bit file access functions.  */
> > #ifdef __USE_FILE_OFFSET64
> > # error "<fts.h> cannot be used with -D_FILE_OFFSET_BITS==64"
> > #endif
> 
> That must be the reason why other projects are moving in the opposite
> direction, see for example:
> 
> http://sourceforge.net/tracker/index.php?func=detail&aid=3126942&group_id=3382&atid=103382

The discussion of the change for setfiles can be found in the list
archives, e.g.
http://marc.info/?t=124639081000002&r=1&w=2
http://marc.info/?l=selinux&m=124688830500777&w=2

-- 
Stephen Smalley
National Security Agency


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