[pkg-fetchmail-maint] Bug#637478: Bug#637478: fetchmail: 28 minute IDLE timeout should be configurable

[Matthias Andree]

Am 12.08.2011 00:13, schrieb Anders Kaseorg:
> Package: fetchmail
> Version: 6.3.18-2
> 
> I’m running fetchmail through a proxy server that drops any connections 
> left idle for more than a little over 2 minutes.  In order to be able to 
> use IMAP IDLE, I need to reduce this hardcoded timeout value in 
> imap_idle():
> 
>     if (has_idle) {
>         /* special timeout to terminate the IDLE and re-issue it
>          * at least every 28 minutes:
>          * (the server may have an inactivity timeout) */
>         mytimeout = idle_timeout = 1680; /* 28 min */
> 
> It would be nice to have that as a configuration option.
> 
> In the unlikely event that this is helpful to someone else, here’s the 
> i386 binary patch I’m using now (28 m = 0x690 s, 2 m = 0x78 s):
> perl -0777 -pe 's/(\xc7\x05.{4})\x90\x06\x00\x00/$1\x78\x00\x00\x00/g' -i /usr/bin/fetchmail

Anders,

The IMAP standard (RFC-3501) has clear requirements with respect to how
long servers need to tolerate connections left idle by clients, and if
the connection gets dropped so soon, IDLE support gets pointless.

Please file a bug or support request against the proxy that drops the
connection so soon in the IDLE phase.

Best regards,
Matthias