MirOS Manual: xfs(1)


XFS(1)              UNIX Programmer's Manual               XFS(1)

NAME

     xfs - X font server

SYNOPSIS

     xfs [-config configuration_file] [-daemon] [-droppriv] [-ls
     listen_socket] [-nodaemon] [-port tcp_port] [-user username]

DESCRIPTION

     Xfs is the X Window System font server.  It supplies fonts
     to X Window System display servers.

STARTING THE SERVER

     The server is usually run by a system administrator, and
     started via boot files like /etc/rc.local.  Users may also
     wish to start private font servers for specific sets of
     fonts.

OPTIONS

     -config configuration_file
             Specifies the configuration file the font server
             will use.  If this parameter is not specified, the
             default file, /usr/X11R6/lib/X11/fs/config will be
             used.

     -ls listen_socket
             Specifies a file descriptor which is already set up
             to be used as the listen socket.  This option is
             only intended to be used by the font server itself
             when automatically spawning another copy of itself
             to handle additional connections.

     -port tcp_port
             Specifies the TCP port number on which the server
             will listen for connections. The default port number
             is 7100.

     -daemon Instructs xfs to fork and go into the background
             automatically at startup  If this option is not
             specified, xfs will run as a regular process (unless
             xfs was built to daemonize by default).

     -droppriv
             If specified, xfs will attempt to run as user and
             group xfs (unless the -user option is used). This
             has been implemented for security reasons, as xfs
             may have undiscovered buffer overflows or other
             paths for possible exploit, both local and remote.
             With this option, you may also wish to specify "no-
             listen = tcp" in the config file, which ensures that
             xfs will not to use a TCP port at all.

     -nodaemon

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             When xfs is built to daemonize (run in the back-
             ground) by default, this prevents that and starts
             xfs up as a regular process.

     -user username
             This is equivalent to -droppriv except that xfs will
             run as user username.

SIGNALS

     SIGTERM This causes the font server to exit cleanly.

     SIGUSR1 This signal is used to cause the server to re-read
             its configuration file.

     SIGUSR2 This signal is used to cause the server to flush any
             cached data it may have.

     SIGHUP  This signal is used to cause the server to reset,
             closing all active connections and re-reading the
             configuration file.

CONFIGURATION

     The configuration language is a list of keyword and value
     pairs. Each keyword is followed by an '=' and then the
     desired value.

     Recognized keywords include:

     catalogue (list of string)
          Ordered list of font path element names. Use of the
          keyword "catalogue" is very misleading at present, the
          current implementation only supports a single catalogue
          ("all"), containing all of the specified fonts.

     alternate-servers (list of string)
          List of alternate servers for this font server.

     client-limit (cardinal)
          Number of clients this font server will support before
          refusing service.  This is useful for tuning the load
          on each individual font server.

     clone-self (boolean)
          Whether this font server should attempt to clone itself
          when it reachs the client-limit.

     default-point-size (cardinal)
          The default pointsize (in decipoints) for fonts that
          don't specify.  The default is 120.

     default-resolutions (list of resolutions)

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          Resolutions the server supports by default. This infor-
          mation may be used as a hint for pre-rendering, and
          substituted for scaled fonts which do not specify a
          resolution. A resolution is a comma-separated pair of x
          and y resolutions in pixels per inch. Multiple resolu-
          tions are separated by commas.

     error-file (string)
          Filename of the error file.  All warnings and errors
          will be logged here.

     no-listen (trans-type)
          Disable a transport  type. For example, TCP/IP connec-
          tions can be disabled with no-listen tcp

     port (cardinal)
          TCP port on which the server will listen for connec-
          tions.

     use-syslog (boolean)
          Whether syslog(3) (on supported systems) is to be used
          for errors.

     deferglyphs (string)
          Set the mode for delayed fetching and caching of
          glyphs.  Value is "none", meaning deferred glyphs is
          disabled, "all", meaning it is enabled for all fonts,
          and "16", meaning it is enabled only for 16-bits fonts.

EXAMPLE

     #
     # sample font server configuration file
     #

     # allow a max of 10 clients to connect to this font server
     client-limit = 10

     # when a font server reaches its limit, start up a new one
     clone-self = on

     # alternate font servers for clients to use
     alternate-servers = hansen:7101,hansen:7102

     # where to look for fonts
     # the first is a set of Speedo outlines, the second is a set of
     # misc bitmaps and the last is a set of 100dpi bitmaps
     #
     catalogue = /usr/X11R6/lib/X11/fonts/speedo,
          /usr/X11R6/lib/X11/fonts/misc,
          /usr/X11R6/lib/X11/fonts/100dpi/

     # in 12 points, decipoints

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     default-point-size = 120

     # 100 x 100 and 75 x 75
     default-resolutions = 100,100,75,75
     use-syslog = off

FONT SERVER NAMES

     One of the following forms can be used to name a font server
     that accepts TCP connections:

         tcp/hostname:port
         tcp/hostname:port/cataloguelist

     The hostname specifies the name (or decimal numeric address)
     of the machine on which the font server is running.  The
     port is the decimal TCP port on which the font server is
     listening for connections. The cataloguelist specifies a
     list of catalogue names, with '+' as a separator.

     Examples: tcp/fs.x.org:7100, tcp/18.30.0.212:7101/all.

     One of the following forms can be used to name a font server
     that accepts DECnet connections:

         decnet/nodename::font$objname
         decnet/nodename::font$objname/cataloguelist

     The nodename specifies the name (or decimal numeric address)
     of the machine on which the font server is running. The
     objname is a normal, case-insensitive DECnet object name.
     The cataloguelist specifies a list of catalogue names, with
     '+' as a separator.

     Examples: DECnet/SRVNOD::FONT$DEFAULT,
     decnet/44.70::font$special/symbols.

SEE ALSO

     X(7), The X Font Service Protocol,
     Font server implementation overview

BUGS

     Multiple catalogues should be supported.

AUTHORS

     Dave Lemke, Network Computing Devices, Inc
     Keith Packard, Massachusetts Institute of Technology

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