Re: [courier-users] possibly bug or misconfiguration? corrupted log

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Thomas Jacob writes:

> Jan 4 00:22:19 XXX pop3d: [ID 702911 mail.info] LOGIN, user=XXXXXINFO:
> LOGIN, user=, ip=[::ffff:XX.XX.XX.XX], port=[XXX2609, ip=[]
>
> Basically it looks like several client processes log messages aren't
> cleanly separated into single lines.
>
> We're running courier-authlib-0.60.2 /courier-imap-4.3.0 on Sun Fire
> T1000 / Solaris 10 and we're processing the log messages for system
> accounting purposes, so their reliability is relatively important.
>
> Is anybody else seeing this? Is it a bug? A misconfiguration on our
> part? An OS issue? Any hints will be very welcome...

An OS issue. Looks like Solaris doesn't line-buffer stderr, by default.

Try sticking setvbuf(stderr, NULL, _IOLBF, BUFSIZ); as the first order of
business in main() in both imaplogin.c and imapd.c.

That should take care of it for IMAP. POP3, and other services, will likely
have a similar issue. It's also remotely possibly that your libc might use
an environment variable to set this, by default.


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