Re: CLONE_NEWUTS documentation

["Serge E. Hallyn" <serue@us.ibm.com>]

Quoting Michael Kerrisk (mtk-manpages@gmx.net):
> 
> 
> Eric W. Biederman wrote:
> > Michael Kerrisk <mtk-manpages@gmx.net> writes:
> > 
> >> Hello Serge,
> >>
> >> In 2.6.19, your patch to add support for CLONE_NEWUTS was included.  Is
> >> there there some for-userland-programmers documentation of this flag
> >> somewhere?  Would you be able to send some documentation to me (ideally as
> >> a patch to the clone.2 man page, but otherwise some plain text will do).
> >>
> >> If this flag is also supported for unshare(), then could you please send me
> >> a patch/text for that too?
> > 
> > Again a short summary
> > 
> > The utsname namespace encapsulates the global kernel identification stored
> > in struct utsname returned from uname(2).
> > 
> > It is a very trivial namespace but it allows you to set multiple hostnames
> > and nis domainnames on the same machine.
> 
> Thanks Eric.
> 
> And a further question: is CLONE_NEWUTS implemented for unshare()?

Yes, it is.  And unlike CLONE_FS but like CONE_NEWNS, it has the same
meaning for unshare as for clone.

thanks,
-serge
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