Speaking of man pages, I recently had a lengthy debugging
session for a new feature I wanted to add, where the bug was incorrect
expectations on my part caused by a mismatch between mimedefang.pl and
the API described by mimedefang-filter(5).
Here's the excerpt from the manpage:
md_check_against_smtp_server($sender, $recip, $helo, $server)
This function connects to the SMTP server $server and pretends
to send mail from $sender to $recip. If the RCPT TO: command
succeeds, it returns (1 "OK"). If it fails with a permanent
failure, it returns (0 $msg), where $msg is the message from the
SMTP server. Any temporary failures, connection errors, etc.
result in a return value of (-1 $msg).
The procedure comments in mimdefang.pl also claim possible
return values of (-1,0,1) but the procedure actually returns one of
(CONTINUE, REJECT, TEMPFAIL) because it's passing back the $retval of
get_smtp_return_code($sock), which outputs one of those strings in the
first index of the returned array.
YAanecdote to add to my "Thank ghu for the source" stories,
Ole
--
Ole Craig * UNIX, linux, SMTP-fu; news, web; SGI martyr * CS Computing
Facility, UMass * <www.cs.umass.edu/~olc/pgppubkey.txt> for public key
Need a seasoned *NIX admin in the Denver/Boulder area? Hire me!
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