ZoneCheck

The resolver should now handle the loss of the TCP
connection during DNS queries. The timeout for
connection to a mail server has been reduced.
Checking of DNS connectivity (port 53) has been
improved, particularly for TCP. The ip6.int zone
is handled the same way as the arpa zone. New
tests have been added, one for checking the
coherence between SOA of the different
nameservers, and one to check for unexpected
timeout on an AAAA query. Customizing zonecheck is
now done by adding a zc-custom.rb file in its
directory. Other minor bug fixes have also been
done.

It is now possible to access ZoneCheck through the
inetd daemon. A man page for zonecheck cli is now
available, and slight progress has been made
toward the completion of the general
documentation. The handling of
internationalization has been reworked.

Excessive sanity checking for input parameters
was removed, strings are changed from "" to ''
when possible, and a 'fatalonly' flag was added
to make the program only print fatal errors. The
debugging facility was improved (multiline, lazy
evaluation), and dbgmsg was added to ease
logging of messages during test executions. The
'chk_recursive' test was corrected, and the
msgcat reload method was cleaned up.

The tests were improved and corrected, more
understandable messages are given for DNS error
codes, an XML publisher was partially
implemented, and compatibility was achieved with
Ruby 1.8.0 preview 3. Some bugfixes were also
made.