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Re: Bug#644788: Bug#654116: RFH: screen -- terminal multiplexor with VT100/ANSI terminal emulation


Romain Francoise wrote:
> > Thank you Axel for your detailed response and IMHO this is indeed close
> > to an ideal (lightweight, self-cleaning, etc) resolution for this
> > scenario.
> Of course the real lightweight, self-cleaning solution is to not do
> anything special as the old binary will be kept by the kernel as
> /proc/<serverpid>/exe and can be used to reattach as long as the server is
> running.

Yes and no.

First, this seems to be just some (kind of) symbolic link:

lrwxrwxrwx 1 root root 0 Jan  3 17:49 /proc/32039/exe -> /usr/bin/screen (deleted)

And I can't really execute it, neither as the user owning the screen
session nor as root:

~ # /proc/32039/exe -ls
zsh: permission denied: /proc/32039/exe

Not sure if that's because of this fake symlink or due to other
reasons, though.

> But I guess that for the sake of non-Linux users, keeping a copy
> in /tmp is more reasonable...

That, too. Nevertheless, it would have been a tempting solution.

		Regards, Axel
 ,''`.  |  Axel Beckert <abe@debian.org>, http://people.debian.org/~abe/
: :' :  |  Debian Developer, ftp.ch.debian.org Admin
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