IPP Mail Archive: IPP> ANNOUNCEMENT: Common UNIX Printing Sy

IPP> ANNOUNCEMENT: Common UNIX Printing System 1.1.2

From: Michael Sweet (mike@easysw.com)
Date: Fri Aug 04 2000 - 16:11:36 EDT

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    The 1.1.2 release of the Common UNIX Printing System ("CUPS") is
    now available for download from the CUPS web site at:


    CUPS 1.1.2 fixes several small bugs as well as some build and
    security issues that have been identified by CUPS users.
    Binaries for several platforms are available.

    CUPS provides a portable printing layer for UNIX(r)-based
    operating systems. It has been developed by Easy Software
    Products to promote a standard printing solution for all UNIX
    vendors and users. CUPS provides the System V and Berkeley
    command-line interfaces.

    CUPS uses the Internet Printing Protocol ("IPP") as the basis
    for managing print jobs and queues. The Line Printer Daemon
    ("LPD") Server Message Block ("SMB"), and AppSocket (a.k.a.
    JetDirect) protocols are also supported with reduced
    functionality. CUPS adds network printer browsing and
    PostScript Printer Description ("PPD") based printing options to
    support real-world printing under UNIX.

    CUPS also includes a customized version of GNU Ghostscript
    (currently based off GNU Ghostscript 5.50) and an image file RIP
    that are used to support non-PostScript printers. Sample
    drivers for HP and EPSON printers are included that use these

    Drivers for over 2300 printers are provided with our ESP Print
    Pro software, available at:


    CUPS is licensed under the GNU General Public License and GNU
    Library General Public License. Please contact Easy Software
    Products for commercial support and "binary distribution"

    Changes in v1.1.2 include:

            - Makefile/configure fixes
            - RPM spec file and EPM list file fixes
            - The cupsTempFile() function now uses a different
              algorithm for generating temp files and "reserves"
              them to avoid possible security exploitation.
            - Now use /dev/random (if available) to seed the random
              number generator for certificates.
            - The /var/spool/cups and /var/spool/cups/tmp directories
              were incorrectly owned by root; they are now owned by
              the filter user, typically "lp".
            - The scheduler now resets the permissions on the spool
              and temp directories as needed to match the filter
            - Now expose ppdCollect() as an externally callable
            - The image filters now support filtering from the
              standard input.
            - The imagetoraster filter now collects all printer
              options and job patch files and applies them to the
              page header as needed.
            - Added format and banner options to LPD backend.
            - The send-document operation didn't start a job
              immediately when last-document was true.
            - The set-job-attributes operation didn't correctly
              replace the current job-hold-until value.
            - Removed the option wrapper code from ppdEmit() and
              friends since it caused problems with Ghostscript
              and many PS printers.
            - Was setting TZ environment variable twice for job
            - Added syslog logging in cups-lpd to aide in
              debugging problems.
            - The HP-UX parallel port backend did not list the
              available parallel ports on some systems (printf
              calling problem...)
            - The lp and lpr commands overrode user options if
              -d/-P were specified after -o.
            - The scheduler would crash with a */* filter.
            - Added support for a "default" filter for unknown file
              types. The example provided in the mime.types and
              mime.convs file prints unknown files as if "-oraw" was
              specified for the job. This functionality is disabled
              by default.
            - The "compatibility" mode fix for older backends did not
              work for smbspool. Added a workaround for it.
            - The HP-GL/2 filter didn't perform the right pen scaling
              with some files and the "fitplot" option.
            - New Software Performance Specification document that
              describes the memory, disk, and CPU usage of all the
              CUPS software.

    Michael Sweet, Easy Software Products                  mike@easysw.com
    Printing Software for UNIX                       http://www.easysw.com

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