Bill Arlofski <[EMAIL PROTECTED]> wrote:
>
> I am trying to understand the purpose of being able to set environment
> variables like $TCPREMOTEHOST with tcpserver for incoming connections
> (ie: using the -h option or -p 'paranoid' option to perform reverse DNS
> lookups) and set or unset the $TCPREMOTEHOST variable based on DNS
> information. when qmail-smtpd does not seem to care, or make any use of it.
>
> Is a shell script to be called in place of qmail-smtpd to check
> environment variables, then pass control back onto qmail-smtpd?
Yes. Write a small wrapper that checks either for the presence of the
appropriate environment variable, or checks that the given variable is
non-empty, and either execs the rest of its commandline (if the variable
meets your criteria) or exits otherwise. Then insert this wrapper in
the tcpserver commandline before qmail-smtpd.
Charles
--
-----------------------------------------------------------------------
Charles Cazabon <[EMAIL PROTECTED]>
GPL'ed software available at: http://www.qcc.sk.ca/~charlesc/software/
-----------------------------------------------------------------------
