freebsd stable - Jun 2014 - sysutils/screen switched from using named pipes to local domain sockets

Maybe a heads-up is in order.

If you're in the (bad?) habit of running portupgrade, etc, from 
sysutils/screen, beware that screen 4.2.1 switched from using named 
pipes to local domain sockets. The naming of sockets hasn't changed, 
only the (file) type.

Stop any running screen sessions before upgrading sysutils/screen, or 
perhaps you should upgrade your ports while in single-user mode.

-- 
+-------------------------------+------------------------------------+
| Vennlig hilsen,               | Best regards,                      |
| Trond Endrest?l,              | Trond Endrest?l,                   |
| IT-ansvarlig,                 | System administrator,              |
| Fagskolen Innlandet,          | Gj?vik Technical College, Norway,  |
| tlf. mob.   952 62 567,       | Cellular...: +47 952 62 567,       |
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On Tue, Jun 10, 2014 at 01:36:12PM +0200, Trond Endrest?l
wrote:
> Maybe a heads-up is in order.
> 
> If you're in the (bad?) habit of running portupgrade, etc, from 
> sysutils/screen, beware that screen 4.2.1 switched from using named 
> pipes to local domain sockets. The naming of sockets hasn't changed, 
> only the (file) type.
> 
> Stop any running screen sessions before upgrading sysutils/screen, or 
> perhaps you should upgrade your ports while in single-user mode.
> ....
Or perform the work under a sysutils/tmux session (though in the
past, there has been at least one time when an upgrade to tmux would
break the ability to reconnect to an existing tmux session, as
well).

Peace,
david   (who does upgrade under tmux(1) -- and script(1))
-- 
David H. Wolfskill				david at catwhisker.org
Taliban: Evil cowards with guns afraid of truth from a 14-year old girl.

See http://www.catwhisker.org/~david/publickey.gpg for my public key.
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On Tue, Jun 10, 2014 at 01:36:12PM +0200, Trond Endrest?l
wrote:
> Maybe a heads-up is in order.
> 
> If you're in the (bad?) habit of running portupgrade, etc, from 
> sysutils/screen, beware that screen 4.2.1 switched from using named 
> pipes to local domain sockets. The naming of sockets hasn't changed, 
> only the (file) type.
> 
> Stop any running screen sessions before upgrading sysutils/screen, or 
> perhaps you should upgrade your ports while in single-user mode.
That alos seems to break connecting to another user's shared screen 
session:

user a has in his .screenrc

acladd b

When user b now trys:

screen -x a/

seteuid: Operation not permitted
[...]
seteuid: Operation not permitted
Illegal instruction

So there's more going wrong with this update, careful if you rely on 
this funtionality.

- Oliver

-- 
| Oliver Brandmueller          http://sysadm.in/         ob at sysadm.in |
|                        Ich bin das Internet. Sowahr ich Gott helfe. |