openat2.h location (openat2.2)

Aleksa Sarai cyphar@cyphar.com
Tue Jun 30 22:33:48 GMT 2020


On 2020-06-30, Michael Kerrisk (man-pages) <mtk.manpages@gmail.com> wrote:
> [CC += Aleksa, linux-man@]
> 
> Hello Petr,
> 
> I'm bringing Aleksa, the creator of the system call, into CC.
> 
> Aleksa, the issue is that the header file (<openat2.h>) documented in
> the manual page that you sent does not (yet) exist (and the bug
> reporter therefore suggests that the manual page should say to include
> <linux/openat2.h>.
> 
> I'm guessing that there is (or was) a plan to add a <openat2.h> header
> file to glibc. What is the status?

Yes, Florian asked me to put the openat2 definitions into a separate
header (openat2.h) so that it could be just copied by glibc rather than
having to do any more hacks around <fcntl.h>.

I guess those plans haven't come to fruition yet? I'm fine with telling
users to use <linux/openat2.h> in the meantime.

> With best regards,
> 
> Michael
> 
> On Tue, 30 Jun 2020 at 16:17, pgajdos <pgajdos@suse.cz> wrote:
> >
> > Hello Michael,
> >
> > https://bugzilla.suse.com/show_bug.cgi?id=1173382
> >
> > reporter proposes
> >
> > Index: man-pages-5.07/man2/openat2.2
> > ===================================================================
> > --- man-pages-5.07.orig/man2/openat2.2  2020-06-09 14:45:54.000000000 +0200
> > +++ man-pages-5.07/man2/openat2.2       2020-06-30 16:07:09.655352702 +0200
> > @@ -29,7 +29,7 @@ openat2 \- open and possibly create a fi
> >  .B #include <sys/types.h>
> >  .B #include <sys/stat.h>
> >  .B #include <fcntl.h>
> > -.B #include <openat2.h>
> > +.B #include <linux/openat2.h>
> >  .PP
> >  .BI "int openat2(int " dirfd ", const char *" pathname ,
> >  .BI "            struct open_how *" how ", size_t " size ");
> >
> > Thanks,
> > Petr
> >
> > --
> > Have a lot of fun!

-- 
Aleksa Sarai
Senior Software Engineer (Containers)
SUSE Linux GmbH
<https://www.cyphar.com/>
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