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Xprt - Print server for X Version 11
Xprt kx [-ac] [-audit
level] [-pn] [-fp fontpath] [-XpFile file] [-XpSpoolerType spoolername] [:display]
Xprt is the Xprint print server for version 11 of the X Window
system for non display devices such as printers and fax machines.
Xprint
is an advanced printing system which enables X11 applications to use devices
like printers, FAX or create documents in formats like PostScript, PCL
or PDF. It may be used by clients such as mozilla.
Xprint is a very flexible,
extensible, scaleable, client/server print system based on ISO 10175 (and
some other specs) and the X11 rendering protocol. Using Xprint an application
can search, query and use devices like printers, FAX machines or create
documents in formats like PDF. In particular, an application can seek a
printer, query supported attributes (like paper size, trays, fonts etc.),
configure the printer device to match it's needs and print on it like on
any other X device reusing parts of the code which is used for the video
card Xserver.
Although Xprt may be invoked from the command line, it
is preferable to run it as a daemon via the init script /etc/init.d/xprint
(where this script exists).
Client programs such as mozilla will require
environment variable ${XPSERVERLIST} to be set, identifying the "display"
on which Xprt is running. This variable may be set for all users via /etc/profile
(or similar), using /etc/init.d/xprint get_xpserverlist:
export XPSERVERLIST=`/etc/init.d/xprint get_xpserverlist`
Many of Xprt's command line options are shared in common with the
usual X servers (see Xserver(1x)
). Commonly used options include:
- :display
- The X server runs on the given display. If multiple X servers are to run
simultaneously on a host, each must have a unique display number. Note that
the standard X server (for video displays) typically runs on display :0.
If /etc/init.d/xprint is used to invoke Xprt, it may be configured to automatically
assign an available display number.
- -ac
- disables host-based access control
mechanisms. Enables access by any host, and permits any host to modify the
access control list. Use with extreme caution. This option exists primarily
for running test suites remotely.
- -audit level
- sets the audit trail level.
The default level is 1, meaning only connection rejections are reported.
Level 2 additionally reports all successful connections and disconnects.
Level 4 enables messages from the SECURITY extension, if present, including
generation and revocation of authorizations and violations of the security
policy. Level 0 turns off the audit trail. Audit lines are sent as standard
error output.
- -fp fontpath
- sets the search path for fonts. This path is a
comma separated list of directories which Xprt searches for font databases.
- -pn
- permits the server to continue running if it fails to establish all
of its well-known sockets (connection points for clients), but establishes
at least one.
- -XpFile file
- Sets an altername Xprinters file (see section
FILES).
- -XpSpoolerType spoolername
- Defines the spooler system to be used
for print job spooling. Supported values in xprint.mozdev.org release 009
are:
aix
aix4
bsd
osf
solaris
sysv
uxp
cups
lprng
other
none
(multiple values can be specified, seperated by ':', the first active spooler
will be chosen). The default value is platform-specific and can be obtained
via
Xprt -h
.
The following environment variables are recognized by the
X print server (environment variables recognized by Xprint clients are
described in Xprint(7)
):
- ${XPCONFIGDIR}
- This environment variable points
to the root of the Xprint server configuration directory hierarchy. If the
variable is not defined, the default path is be assumed. The default path
may be /usr/X11R6/lib/X11/xserver/, /usr/lib/X11/xserver/, /usr/share/Xprint/xserver/
or /usr/openwin/server/etc/XpConfig, depending on the system, and may be
configured in /etc/init.d/xprint.
- ${LANG}
- This environment variable selects
the locale settings used by the Xprint server. Xprt allows language-specific
settings (stored in ${XPCONFIGDIR}/${LANG}/print/) which will override
the default settings (stored in ${XPCONFIGDIR}/C/print/). If ${LANG} is
not set "C" is assumed.
- ${XPCONFIGDIR}/${LANG}/print/Xprinters, ${XPCONFIGDIR}/C/print/Xprinters
- `Xprinters' is the top most configuration file. It tells Xprt which specific
printer names (e.g. mylaser) should be supported, and whether lpstat(1)
or
other commands should be used to automatically supplement the list of printers.
- ${XPCONFIGDIR}/${LANG}/print/attributes/printer, ${XPCONFIGDIR}/C/print/attributes/printer
- The `printer' file maps printer names to model configurations (see `model-config'
below). For example, "mylaser" could be mapped to a "HPDJ1600C", and all
other arbitrary printers could be mapped to a default, such as "HPLJ4SI".
When depending on lpstat(1)
in the Xprinters file, setting up defaults
in `printer' becomes all the more important.
- ${XPCONFIGDIR}/${LANG}/print/attributes/document,
${XPCONFIGDIR}/C/print/attributes/document
- The `document' file specifies
the initial document values for any print jobs. For example, which paper
tray to use, what default resolution, etc.
- ${XPCONFIGDIR}/${LANG}/print/attributes/job,
${XPCONFIGDIR}/C/print/attributes/job
- The `job' file specifies the initial
job values for any print jobs. For example, "notification-profile" can be
set so that when a print job is successfully sent to a printer, e-mail is
sent to the user.
- ${XPCONFIGDIR}/C/print/models/PSdefault/model-config, ${XPCONFIGDIR}/C/print/models/PSdefault/fonts/fonts.dir,
${XPCONFIGDIR}/C/print/models/PSdefault/fonts/9nb00051.pmf, ${XPCONFIGDIR}/C/print/models/PSdefault/fonts/9nb00093.pmf
- The `model-config' file has attributes that describe the printer model's capabilities
and default settings. Printer model fonts may also be present. The model-config
file also identifies the print ddx driver to be used. For each printer model
supported, a complete hierarchy of files should exist. In most cases, these
files do not need to be modified.
- ${XPCONFIGDIR}/C/print/ddx-config/raster/pdf,
${XPCONFIGDIR}/C/print/ddx-config/raster/pcl, ${XPCONFIGDIR}/C/print/ddx-config/raster/postscript
- The print ddx drivers can have highly specific configuration files to control
their behavior. In most cases, these files do not need to be modified.
Xprint(7)
, X11(7)
, xplsprinters(1x)
, xprehashprinterlist(1x)
, xphelloworld(1x)
,
xpxmhelloworld(1x)
, xpawhelloworld(1x)
, xpxthelloworld(1x)
, xpsimplehelloworld(1x)
,
Xserver(1x)
, libXp(3x)
, libXprintUtils(3x)
, libXprintAppUtils(3x)
, XmPrintShell(3x)
,
XawPrintShell(3x)
, Xprint FAQ (http://xprint.mozdev.org/docs/Xprint_FAQ.html),
Xprint main site (http://xprint.mozdev.org/)
This manual page was
written by Drew Parsons <dparsons@debian.org> and Roland Mainz <roland.mainz@nrubsig.org>,
with some help from the man page at http://www.sins.com.au/unix/manpages/Xprt.html
and the XFree86 man page for Xserver(1)
.
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