XMONISDN(1) X Tools XMONISDN(1)
xmonisdn - monitor for ISDN network
xmonisdn [ -toolkitoption ... ] [ -option ... ]
The xmonisdn program displays the status of the ISDN network connection and allows the
starting and stopping of the ISDN subsystem. If the ISDN subsystem is not active, a window
showing a terminal in the foreground and a dashed terminal in the backgorund is displayed.
If the ISDN system is active, but there is no network connection established, two termi-
nals with dashed arrows between them is displayed. If there is a incoming connection or
there is dialing in progress, the arrows become more solid. An outgoing network connection
is signaled by solid arrows between the terminals and the window is displayed in reverse
video. If the ISDN subsystem dials out or hangs up, the program beeps to signal the state
change (this can be changed using the volume option).
Pressing button 2 on the window executes the command /sbin/ifup and pressing button 3 exe-
/sbin/ifup and /sbin/ifdown should start and stop the ISDN subsystem; if the route command
is used, xmonisdn must be run as setuid root for this to work. Alternatively, the scripts
can manipulate the isdnctrl dialmode setting, in which case only permission to access
/dev/isdnctrl is needed.
xmonisdn accepts all of the standard X Toolkit command line options along with the addi-
tional options listed below:
-help This option indicates that a brief summary of the allowed options should be
printed on the standard error.
-update tenth of a second
This option specifies the frequency in 1/10 of a second at which xmonisdn should
update its display. If the window is obscured and then exposed, it will be
updated immediately. The default is 0.5 seconds (i.e. -update 5).
This option specifies the name of the file which should be monitored. By default,
it watches /dev/isdninfo.
This option specifies how loud the bell should be rung when there is an important
-shape This option indicates that the xmonisdn window should be shaped if masks for the
images are given.
The following standard X Toolkit command line arguments are commonly used with xmonisdn:
This option specifies the X server to contact.
This option specifies the preferred size and position of the xmonisdn window. The
icon is 48 pixels wide and 48 pixels high and will be centered in the window.
This option specifies the color to use for the background of the window.
This option specifies the color to use for the border of the window.
This option specifies the width in pixels of the border surrounding the window.
This option specifies the color to use for the foreground of the window.
-rv This option indicates that reverse video should be simulated by swapping the fore-
ground and background colors.
This option specifies a resource string to be used. This is especially useful for
setting resources that do not have separate command line options.
The application class name is xmonisdn. This program uses the Netstat widget. It under-
stands all of the core resource names and classes as well as:
file (class File)
Specifies the name of the file to monitor. The default is to watch /dev/isdninfo.
width (class Width)
Specifies the width of the icon.
height (class Height)
Specifies the height of the icon.
update (class Interval)
Specifies the frequency in 1/10 of a second at which the isdninfo file should be
checked. The default is 5.
volume (class Volume)
Specifies how loud the bell should be rung. The default is 33 percent.
foreground (class Foreground)
Specifies the color for the foreground.
reverseVideo (class ReverseVideo)
Specifies that the foreground and background should be reversed.
flip (class Flip)
Specifies whether or not the image that is shown when there is an outgoing network
connection should be inverted. The default is ``true.''
inactivePixmap (class Pixmap)
Specifies a bitmap to be shown when the ISDN subsystem is inactive. The default
waitingPixmap (class Pixmap)
Specifies a bitmap to be shown when the ISDN subsystem is active, but there is no
connection. The default is netwaiting.
activePixmap (class Pixmap)
Specifies a bitmap to be shown when there is a incoming network connection (or
dialing is in progress). The default is netactive.
activeoutPixmap (class Pixmap)
Specifies a bitmap to be shown when there is a outgoing network connection. The
default is netactiveout.
startPixmap (class Pixmap)
Specifies a bitmap to be shown when the ISDN network is started up. The default
stopPixmap (class Pixmap)
Specifies a bitmap to be shown when the ISDN network is stopped. The default is
shapeWindow (class ShapeWindow)
Specifies whether or not the xmonisdn window should be shaped to the given Pixmap-
Masks. The default is false.
inactivePixmapMask (class PixmapMask)
Specifies a mask for the bitmap to be shown when the ISDN subsystem is inactive.
The default is none.
waitingPixmapMask (class PixmapMask)
Specifies a mask for the bitmap to be shown when the ISDN subsystem is active, but
there is no connection. The default is none.
activePixmapMask (class PixmapMask)
Specifies a mask for the bitmap to be shown when when there is a incoming network
connection (or dialing is in progress). The default is none.
activeoutPixmapMask (class PixmapMask)
Specifies a mask for the bitmap to be shown when there is a outgoing network con-
nection. The default is none.
startPixmapMask (class PixmapMask)
Specifies a mask for the bitmap to be shown when the ISDN network is started up.
The default is none.
stopPixmapMask (class PixmapMask)
Specifies a mask for the bitmap to be shown when the ISDN network is stopped.
The default is none.
The Netstat widget provides the following actions for use in event translations:
check() This action causes the widget to check the isdninfo file and display the appropri-
This action causes the widget to execute /sbin/ifdown stop.
netup() This action causes the widget to execute /sbin/ifup start.
The default translation is
There are a number of reasons why you should not run xmonisdn as a `setuid root' program.
Most importantly, any setuid root program is a potential security hole. The scripts that
are executed by xmonisdn may be compromised, or contain non-absolute paths to the commands
called (so that by changing the PATH variable the wrong binary is executed!); or the
script may in turn call other things that are not secure.
If you are sure that your scripts are secure and you insist on making xmonisdn setuid
root, you can give the -r option as first option. This will turn off xmonisdn's setuid
detection. However, you are on your own if you do this!
A better alternative is to put the isdn devices in group dialout (if not so already), and
add yourself to the dialout group. This way you have permission to manipulate the ISDN
devices, e.g. to use isdnctrl to change the dialmode setting to off (to disable dialing)
or auto (for autodial). The whole ISDN system may also be turned on and off, see the isd-
nctrl manpage for more info. This is a more secure way of controlling the dialing than
e.g. by manipulating routes.
DISPLAY to get the default host and display number.
to get the name of a resource file that overrides the global resources stored in
the RESOURCE_MANAGER property.
isdn4k-utils-3.13 2002/01/31 XMONISDN(1)