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Re: [PATCH] tst-ttyname: skip the test when /dev/ptmx is not available
On Mon, Dec 25, 2017 at 1:00 PM, Dmitry V. Levin <ldv@altlinux.org> wrote:
> On Mon, Dec 25, 2017 at 12:09:56PM -0800, Zack Weinberg wrote:
>> On Mon, Dec 25, 2017 at 11:12 AM, Dmitry V. Levin <ldv@altlinux.org> wrote:
>> > On Mon, Dec 25, 2017 at 07:19:44PM +0100, Florian Weimer wrote:
>> >> * Dmitry V. Levin:
>> >>
>> >> > * sysdeps/unix/sysv/linux/tst-ttyname.c (do_in_chroot_1): Skip the
>> >> > test instead of failing in case of an error returned by posix_openpt.
>> >>
>> >> I think the test failure is real in this case. I wouldn't it be?
>> >
>> > No, /dev/ptmx is intentionally missing in the environment where this test
>> > failed.
>>
>> Why?
>
> It's a restricted environment.
Why is lack of access to pseudoterminals a useful restriction to
apply? What does it defend against?
zw