question about querying the router from scripts (unrelated to the upgrade)

[Ambrose Li <acli@ada.dhs.org>]

Hi,

this is completely unrelated to my other questions.

When I run router -i (or sendmail -bt) from the command line, I
can enter commands such as "router nobody" and it will give me
an answer.

If I write a script, and then run it from a terminal, or even
from a batch(1) job, the router still gives me an answer.

However, if I run the script from a daemon (e.g., use it in a
"fingerd" script, or in a program referred to in an alias in the
aliases file), it gives me no answer; the router process seems
to just exit after printing the ZMailer version number.

If I allocate a pty in the daemon, then router will again give
me an answer (iirc), but that seems a lot of work (to set up
the pty device).

What is the correct way to query the router from a daemon?
Obviously there is a correct way since the smtpserver does it
(when configured to to do).

Thanks in advance, and

Best regards,
-- 
Ambrose LI Cheuk-Wing  <a.c.li@ieee.org>

http://ada.dhs.org/~acli/
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