[stunnel-users] [harri.kiiskinen at utu.fi: Bug#594876: stunnel4: Fails to connect, "Input line too long"]

Mon Aug 30 18:45:18 CEST 2010

----- Forwarded message from Harri Kiiskinen <harri.kiiskinen at utu.fi> -----

Date: Mon, 30 Aug 2010 13:26:07 +0300
From: Harri Kiiskinen <harri.kiiskinen at utu.fi>
To: Debian Bug Tracking System <submit at bugs.debian.org>
Subject: Bug#594876: stunnel4: Fails to connect, "Input line too long"

Package: stunnel4
Version: 3:4.29-1local1
Severity: normal

My Univ. recently updated their mail servers, and I could not read my mails anymore with Emacs/mew, that uses stunnel4 for encryption. It turned out the 
reason was, that the server responded with this string:

* OK [CAPABILITY STARTTLS CAPABILITY IMAP4 IMAP4rev1 ACL QUOTA LITERAL+ NAMESPACE UIDPLUS CHILDREN BINARY UNSELECT SORT LANGUAGE IDLE XSENDER X-NETSCAPE 
XSERVERINFO X-SUN-SORT X-SUN-IMAP X-ANNOTATEMORE X-UNAUTHENTICATE XUM1 AUTH=PLAIN AUTH=PLAIN] Messaging Multiplexor (Sun Java(tm) System Messaging Server 
7.3-11.01 (built Sep 1 2009))

It turned out that this was way much longer than what stunnel4 expects. In common.h, one finds

#define STRLEN 256

When this is changed to

#define STRLEN 512

and the package recompiled, everything works well.

Perhaps the length of accepted strings should be increased? Or is this long a response against some standard?

All the best,

Harri K.

-- System Information:
Debian Release: squeeze/sid
  APT prefers testing
  APT policy: (990, 'testing')
Architecture: i386 (i686)

Kernel: Linux 2.6.32-3-686 (SMP w/1 CPU core)
Locale: LANG=en_IE.UTF-8, LC_CTYPE=en_IE.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash

Versions of packages stunnel4 depends on:
ii  adduser                       3.112      add and remove users and groups
ii  libc6                         2.11.2-2   Embedded GNU C Library: Shared lib
ii  libssl0.9.8                   0.9.8o-1   SSL shared libraries
ii  libwrap0                      7.6.q-19   Wietse Venema's TCP wrappers libra
ii  netbase                       4.42       Basic TCP/IP networking system
ii  openssl                       0.9.8o-1   Secure Socket Layer (SSL) binary a
ii  perl-modules                  5.10.1-14  Core Perl modules

stunnel4 recommends no packages.

Versions of packages stunnel4 suggests:
pn  logcheck-database             <none>     (no description available)

-- Configuration Files:
/etc/stunnel/stunnel.conf changed [not included]

-- no debconf information

----- End forwarded message -----

-- 
Rodrigo Gallardo