[PATCH] resolv/resolv.h: allow alternative resolv.conf files

[Florian Weimer]

On 08/17/2017 06:18 PM, Renzo Davoli wrote:
> On Thu, Aug 17, 2017 at 11:20:53AM -0400, Carlos O'Donell wrote:
>> Is there anything technically wrong with the overlay mount?
> 
> Yes. AFAIK it requires CAP_SYS_ADMIN to mount.  (see clone(2) or unshare(2)).
> 
> Please tell me how to mount an overlay in a user namespace, this would give
> a solution to my problem (although a sub-optimal one, it is much more complex 
> to use than an env var, IMHO).

resolv/tst-resolv-res_init-skeleton.c uses the support/ framework to
replace /etc in the test chroot, precisely because the /etc/resolv.conf
path is currently hard-coded.  The test does not need root permissions
to run on current Fedora, for instance.

Is this what you had in mind?

Thanks,
Florian