Re: [PATCH v2] libselinux: restorecon: avoid printing NULL pointer

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On Tue, Jun 28, 2022 at 5:06 PM Nicolas Iooss <nicolas.iooss@xxxxxxx> wrote:
>
> On Tue, Jun 7, 2022 at 7:00 PM Christian Göttsche
> <cgzones@xxxxxxxxxxxxxx> wrote:
> >
> > The variable `curcon` is NULL in case the file has no current security
> > context.  Most C standard libraries handle it fine, avoid it nonetheless
> > for standard conformance.
> >
> > Signed-off-by: Christian Göttsche <cgzones@xxxxxxxxxxxxxx>
>
> Hello,
> What is the status of this patch? As it looks good to me, I can merge
> it if nobody has any more comments.
>

This patch is fine. Patch 1 fixes a commit that has been reverted, so
it is not needed.
Thanks,
Jim


> Acked-by: Nicolas Iooss <nicolas.iooss@xxxxxxx>
>
> Thanks,
> Nicolas
>
> > ---
> > v2:
> >    print "<no context>" instead of "(null)"
> > ---
> >  libselinux/src/selinux_restorecon.c | 4 +++-
> >  1 file changed, 3 insertions(+), 1 deletion(-)
> >
> > diff --git a/libselinux/src/selinux_restorecon.c b/libselinux/src/selinux_restorecon.c
> > index 9f5b326c..3c441119 100644
> > --- a/libselinux/src/selinux_restorecon.c
> > +++ b/libselinux/src/selinux_restorecon.c
> > @@ -744,7 +744,9 @@ static int restorecon_sb(const char *pathname, const struct stat *sb,
> >                         selinux_log(SELINUX_INFO,
> >                                     "%s %s from %s to %s\n",
> >                                     updated ? "Relabeled" : "Would relabel",
> > -                                   pathname, curcon, newcon);
> > +                                   pathname,
> > +                                   curcon ? curcon : "<no context>",
> > +                                   newcon);
> >
> >                 if (flags->syslog_changes && !flags->nochange) {
> >                         if (curcon)
> > --
> > 2.36.1
> >
>




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