[Pkg-cups-devel] Bug#483183: libcupsys2: Block on connect() when showing the list of printers in evince

[Alban Crequy]

Package: libcupsys2
Version: 1.3.7-5
Severity: important

I have two printers in my office:
- 10.0.0.153 Kyocera FS-1030D
- 10.0.0.2 Brother MFC7860n

I want to use the second one. The first one is not mine and drop all packets to
10.0.0.153:631 (I don't know why, but that should not be a problem since I
don't want to use this printer).

When evince try to list the list of printers, it blocks on the following call:
connect(19, {sa_family=AF_INET, sin_port=htons(631),
sin_addr=inet_addr("10.0.0.153")}, 16

So I cannot print, even if the second printer is the default printer, because
programs using libcups hangs on connect() before showing the printer list.

I use this workaround:
iptables -A OUTPUT -d 10.0.0.153 -j REJECT
With this workaround, I can successfully select my printer and print.

My bug was reported upstream but according to mike, it is a problem in
the configuration. I didn't changed the Debian default configuration:
http://www.cups.org/str.php?L2835

My bug is similar to http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=235204
because both blocks on connect(). However, my CUPS server is on localhost (I
didn't changed the Debian default configuration).

Thanks

-- System Information:
Debian Release: lenny/sid
  APT prefers unstable
  APT policy: (500, 'unstable')
Architecture: amd64 (x86_64)

Kernel: Linux 2.6.25-2-amd64 (SMP w/2 CPU cores)
Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash

Versions of packages libcupsys2 depends on:
ii  libc6                  2.7-11            GNU C Library: Shared libraries
ii  libcomerr2             1.40.8-2          common error description library
ii  libgnutls26            2.2.5-1           the GNU TLS library - runtime libr
ii  libkrb53               1.6.dfsg.3-2      MIT Kerberos runtime libraries
ii  zlib1g                 1:1.2.3.3.dfsg-12 compression library - runtime

libcupsys2 recommends no packages.

-- no debconf information