Re: Anybody have a patch for pdksh derivatives, for jails?

On 20080226 15:17:24, Tom Evans wrote:
Running something like 'jexec 1 /bin/sh' won't allow you to allocate a
tty. If instead you enable sshd inside the jail, and ssh into the jail,
sshd will allocate you a tty, and everything will work normally.

Hi.

As I mentioned in my first email, the issue isn't precisely that a tty
isn't allocated, it's that *ksh does extra pedantic checking to discover
whether or not it really does have a controlling terminal. The restrictions
that exist in jails (eg. not being able to open /dev/tty) cause the shell
to believe that it doesn't have a controlling terminal. The shells in
base don't do this extra checking and therefore work fine.

This is simply an OS specific artifact that the *ksh authors couldn't
possibly have forseen!

Given that it seems nobody has patched *ksh to work in a jail, I'll try
myself. I expect the easiest way will be to add a command line flag that
says "I really do have a controlling terminal".

Thanks anyway.
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