Hi all,

I try to implement a custom backend to the AIX printing system which is
supposed to send the print job via e-mail to the user who has submitted
it.

I have figured out this line in the backend script:

/usr/bin/cat $@ | /usr/sbin/sendmail $USER@mydomain.com

If I put a fixed username in $USER it works as expected. So my question
would be: Can I find out the name of the user how submitted the
printjob? I guess I should be able to, I just don't know where to
search.

Any hints welcome ...

Regards,
Torsten

On 2005-09-01, Torsten Schlabach <tschlabach@gmx.net> wrote:

> /usr/bin/cat $@ | /usr/sbin/sendmail $USER@mydomain.com

1) This is a Useless Use of Cat (tm), it's better to use:

/usr/sbin/sendmail $USER@mydomain.com < "$@"

2) To test whether the username is set in an environment variable, do
something like:

export | /usr/sbin/sendmail you@yourdomain.com

... and read the mail to see if the username is in there.

--
Jurjen Oskam

> I try to implement a custom backend to the AIX printing system which is
> supposed to send the print job via e-mail to the user who has submitted
> it.
>
> I have figured out this line in the backend script:
>
> /usr/bin/cat $@ | /usr/sbin/sendmail $USER@mydomain.com
>
> If I put a fixed username in $USER it works as expected. So my question
> would be: Can I find out the name of the user how submitted the
> printjob? I guess I should be able to, I just don't know where to
> search.

If you're able to do this in C instead of a shell script, there are some
calls you can make to get the print job submitter from qdaemon:

log_init(); /* Initialize communication with qdaemon */
get_from(); /* Get the print job submitters user name from qdaemon */

Best regards,
Paul

If you are lucky the process has still the effective user id. So i
would check what the command

/usr/bin/id -un

shows.

So for testing

/usr/bin/id -un >> /tmp/guelle.muelle

hth
Hajo