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Common UNIX Printing System 1.1.19rc1

Created at 09:00 Apr 11, 2003 by mike, last modified at 12:24 Apr 11, 2003

The first release candidate for version 1.1.19 of the Common UNIX Printing System ("CUPS") is now available for download from the CUPS web site at:

    http://www.cups.org/software.php

In accordance with the CUPS Configuration Management Plan, you now have a minimum of two weeks to test this release candidate to determine if there are any high-priority problems and report them using the Software Trouble Report form at:

    http://www.cups.org/str.php

Reports sent to the CUPS newsgroups or mailing lists are not automatically entered into the trouble report database and will not influence the final production release of 1.1.19, so it is very important that you report any problems you identify using the form.

CUPS 1.1.19 adds support for fast reconfiguration, option retension and defaulting when adding and modifying printers, binary PostScript printing, fax device features, custom web applications via CGI, PHP, Java, and Python, and simple scripting support for Java, Perl, and PHP.  The new release also contains bug fixes including the LPD printing and Solaris signal handling bugs.

Changes in CUPS v1.1.19rc1:

        

• Added CUPS support files for Java, Perl, and PHP
          (located in the "scripting" subdirectory...)
          
• The scheduler now supports fast-reloads of the
          cupsd.conf file when it is updated via HTTP.
          
• The scheduler always changed the ownership of log
          files; it now only does so if they are not in the /dev
          directory (i.e. don't want to change the ownership and
          permissions of /dev/null...)
          
• Added libpaper support (patch from Jeff Licquia)
          
• Added a new istring() rule for MIME types files that
          does a case-insensitive comparison of strings.
          
• The cups-lpd mini-daemon now sends jobs to the default
          queue when an empty queue name (or "lp" and there is
          no "lp" queue) is sent.
          
• The scheduler now supports fax queues identified by a
          "*cupsFax: True" attribute in the PPD file. When a job
          can't be sent, it is held for 5 minutes by default
          while other jobs are attempted.  The FaxRetryLimit and
          FaxRetryInterval directives control the number of
          retries and the time between retries.
          
• The scheduler now preserves the default options of PPD
          files when modifying/upgrading an existing PPD file.
          When installing a new printer, the scheduler sets the
          default media size to Letter or A4 as appropriate for
          your locale.
          
• The scheduler no longer limits the number of
          BrowseAddress, BrowsePoll, BrowseRelay, Listen, Port,
          SSLListen, and SSLPort directives to 10.
          
• The scheduler now supports print files that have been
          compressed using gzip.
          
• The scheduler used the stdio functions to read any job
          ticket information in a PostScript print job. Since
          some platforms limit the number of stdio files to 256,
          job ticket information was ignored when the server had
          a large number of clients connected to the system.
          
• Filters and backends may now report the total number
          of pages ("PAGE: total NNN") to the scheduler.
          
• The LPD backend now supports timeout and
          sanitize_title options (default to 300 and yes,
          respectively) and has some additional changes to
          reduce the chances of multiple copies being printed
          when only one copy was requested.
          
• Fixed a polygon drawing bug in the HP-GL/2 filter.
          
• Added a robots.txt file to the standard install to
          prevent search engines from indexing the CUPS server.
          
• Added support for STATE: messages
          (printer-state-reasons), printer-state-history, and
          printer-state-time to the scheduler.
          
• When using RunAsUser, the scheduler would initially
          start any previously queued (pending) jobs with
          RunAsUser disabled
• all backends would be running as
          root.
          
• If a backend failed for a printer, CUPS would
          incorrectly requeue the job for printing again.
          
• Added support for IPP collections and files.
          
• Added experimental support for generic CGI scripts
          and programs, Java, Perl, PHP, and Python to the
          scheduler. See the file "CGI.txt" for more information.
          
• The CUPS API now supports HTTP cookies and the Expect:
          field.
          
• The cancel command now correctly supports the "-u
          user" option to cancel all jobs for the named user.
          
• The Purge-Jobs operation now supports the my-jobs
          boolean attribute and a new purge-jobs boolean
          attribute to control whether job history data is
          purged from the scheduler; the default is false for
          my-jobs and true for purge-jobs to match the original
          implementation.
          
• The scheduler would not timeout printers when only
          using SLP browsing.
          
• If the scheduler was unable to execute a filter, it
          would try to restart the job indefinitely until the
          filter could be executed.
          
• When writing BSD printcap files, the scheduler now
          includes the rm and rp attributes, allowing the file
          to be exported to LPD clients. [Patch from Dominic
          Kubla]
          
• The scheduler optimization to reference IPP attribute
          data instead of performing a full copy caused problems
          when the referenced data was deleted before it was
          sent.  It now only references attributes that change
          only when the scheduler is restarted.  The change also
          reduced the memory footprint of a printer object to
          2k.
          
• The scheduler now holds signals while logging messages
          to avoid potential deadlock issues when handling
          signals on Solaris 8.
          
• The lpadmin command now allows printer access control
          by group name as well as user name.
          
• "lpoptions -l" got in an infinite loop if no default
          printer was available.
          
• The scheduler now logs the job-originating-host-name
          attribute in the page_log file, and uses "-" for any
          empty fields (patch from Dominik Kubla).
          
• The pdftops filter now scales PDF pages within the
          printable area of the page.
          
• The pstops filter didn't include the page-label and
          classification boxes when printing EPS or non-
          conformant PS files.
          
• The imagetops filter didn't always correctly position
          the image on the page when printing in landscape
          orientation.
          
• The ppdEmit() functions now support the
          RequiresPageRegion attribute when sending InputSlot
          and ManualFeed commands.
          
• The PPD loading code now supports standard options
          outside of OpenUI/CloseUI as required by the PPD spec.
          
• The cupstestppd program has been upgraded to provide a
          concise PASS/FAIL report, additional detailed
          conformance testing, and support for gzip'd PPD files.
          
• The PPD loading code is now much more strict when
          loading a PPD file, and tracks more format errors.
          
• The scheduler ignored child signals when gathering the
          list of available devices, when it should have been
          using the default signal handler.
          
• The cupsEncodeOptions() function could encode an
          option with a NULL last string.
          
• The socket backend could report the wrong number of
          backchannel bytes if an error occurred on the link.
          
• The cups-polld program now only sleeps after getting
          all printers and classes.  This allows for longer
          intervals without excessive delays before classes show
          up...
          
• Added a new httpWait() function to support waiting for
          data for a specific number of milliseconds.
          
• httpGets() now times out after 1 second on
          non-blocking HTTP connections.
          
• The scheduler no longer accepts rangeOfInteger values
          that are out of order (e.g. 5-1)
          
• The sides attribute was incorrectly sent as a name
          value; it is a keyword value.
          
• The IPP backend now detects if the destination queue
          has gone away and reports an error.
          
• The scheduler and HTTP API now allocate their select()
          sets to support larger numbers of clients on systems
          that support it.
          
• The scheduler now sets the CFProcessPath environment
          variable under MacOS X.
          
• The cupsLangDefault() function now uses the
          CoreFoundation localization API under MacOS X.
          
• The httpSeparate() function didn't handle file URIs of
          the form "file:///path" properly.
          
• The lpadmin command now supports a "protocol" option
          for specifying the binary communications protocol to
          use when printing binary PostScript data.
          
• The scheduler did not properly parse the SystemGroup
          directive, so only the first group would be used.
          
• Revamped how strings are stored in the scheduler,
          providing a substantial improvement in memory usage
          for systems with large numbers of printers.
          
• The PostScript filter now supports binary PostScript
          files and files beginning with the PJL language escape
          sequence.
          
• The PPD API now provides additional information from
          the PPD file.
          
• The USB backend didn't compile on Solaris Intel.
          
• The cupstestppd utility now supports the "-q" option
          (quiet) for use in scripts, etc.
          
• Merged several weight-reducing changes into the CUPS
          baseline donated by Apple.
          
• Added preliminary support for CDSA; patch provided by
          Apple.
          
• Implicit classes are now created from identical
          printer classes on the network.
          
• The lp command now supports a "-H restart" option to
          restart previously printed jobs.  This functionality
          only works if you have enabled the PreserveJobFiles
          option.
          
• The scheduler now supports URIs in HTTP request lines
          to conform to the HTTP/1.1 specification.
          
• The time-at-xyz attributes were not recognized in
          banner files if prefixed by a question mark, e.g.
          "{?time-at-creation}".
          
• Added support for pre-filtering application/pictwps
          files on MacOS clients before sending them to a server
          via IPP.
          
• The scheduler now allows file:/dev/null device URIs
          even if FileDevices is set to No.
          
• CUPS uses strerror() for hostname resolution errors,
          when it should have used hstrerror().
          
• The USB backend no longer tries to guess the serial
          number of a device from the USB devices file; this
          means that printers that don't report their serial
          numbers in the device ID string will not be
          individually selectable.
          
• The pstops filter didn't handle page ranges properly
          when a page contained an embedded document.
          
• Added a translation of the web interface to German.
          
• When printing using the OutputOrder=Reverse option
          with duplexing, the output order is now truly
          reversed; the order of sub-pages when printing N-up is
          the same.
          
• The pstops filter did not always output the extra
          blank page when printing a document with an odd number
          of pages with duplexing enabled.
          
• The ippAddXYZ functions no longer allow the
          application to add less than 1 value.
          
• Fixed a URL rewrite bug in the web interface
• local
          access was sometimes redirected away from localhost...
          
• The ppdOpen() functions could get in an infinite loop
          if the PPD file contained a keyword or text that was
          too large for the buffer.
          
• Added preliminary support for GNU TLS; patch provided
          by Jeff Licquia.
          
• Now timeout IPP attribute reads after 1 second inside
          an attribute definition.
          
• Now timeout connections that have been shutdown (due
          to errors) after 30 seconds instead of the Timeout
          setting (300 seconds by default).  This provides
          faster recovery from DoS attacks.
          
• A denial-of-service attack warning message was being
          written to the log files by the scheduler for every
          detection.  This caused a DoS of its own in some
          situations. The warning message is now written no more
          than once per minute.
          
• Fixed the CIE colorspace support code in the image and
          PS RIPs.
          
• The job-quota-period, job-page-limit, and job-k-limit
          attributes were not flagged as integers, so setting
          quotas would not work.
          
• Added an additional response check in the scheduler to
          more quickly recover from denial-of-service attacks.
          
• The cupstestppd file was incorrectly installed in the
          /usr/sbin directory instead of /usr/bin.
          
• The EPM list file did not include the cupstestppd
          program or man page files.

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