XMONISDN(1) X Tools XMONISDN(1)NAMExmonisdn - monitor for ISDN network
SYNOPSISxmonisdn [ -toolkitoption ... ] [ -option ... ]
DESCRIPTION
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 sys‐
tem is active, but there is no network connection established, two ter‐
minals 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/netup and
pressing button 3 executes /sbin/netdown
/sbin/netup and /sbin/netdown 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.
OPTIONSxmonisdn accepts all of the standard X Toolkit command line options
along with the additional 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).
-file filename
This option specifies the name of the file which should be mon‐
itored. By default, it watches /dev/isdninfo.
-volume percentage
This option specifies how loud the bell should be rung when
there is an important status change.
-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:
-display display
This option specifies the X server to contact.
-geometry geometry
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.
-bg color
This option specifies the color to use for the background of
the window.
-bd color
This option specifies the color to use for the border of the
window.
-bw number
This option specifies the width in pixels of the border sur‐
rounding the window.
-fg color
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 foreground and background colors.
-xrm resourcestring
This option specifies a resource string to be used. This is
especially useful for setting resources that do not have sepa‐
rate command line options.
X DEFAULTS
The application class name is xmonisdn. This program uses the Netstat
widget. It understands 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 isd‐
ninfo 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 inac‐
tive. The default is netinactive.
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 netac‐
tive.
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 is netstart.
stopPixmap (class Pixmap)
Specifies a bitmap to be shown when the ISDN network is
stopped. The default is netstop.
shapeWindow (class ShapeWindow)
Specifies whether or not the xmonisdn window should be shaped
to the given PixmapMasks. The default is false.
inactivePixmapMask (class PixmapMask)
Specifies a mask for the bitmap to be shown when the ISDN sub‐
system is inactive. The default is none.
waitingPixmapMask (class PixmapMask)
Specifies a mask for the bitmap to be shown when the ISDN sub‐
system 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 connection. The default is none.
startPixmapMask (class PixmapMask)
Specifies a mask for the bitmap to be shown when the ISDN net‐
work is started up. The default is none.
stopPixmapMask (class PixmapMask)
Specifies a mask for the bitmap to be shown when the ISDN net‐
work is stopped. The default is none.
ACTIONS
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 appropriate icon.
netdown()
This action causes the widget to execute /sbin/netdown stop.
netup() This action causes the widget to execute /sbin/netup start.
The default translation is
<ButtonPress>Button2: netup()
<ButtonPress>Button3: netdown()SECURITY ISSUES
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
isdnctrl manpage for more info. This is a more secure way of control‐
ling the dialing than e.g. by manipulating routes.
ENVIRONMENT
DISPLAY to get the default host and display number.
XENVIRONMENT
to get the name of a resource file that overrides the global
resources stored in the RESOURCE_MANAGER property.
AUTHOR
Bernhard Nebel
SEE ALSOisdnctrl(8)isdn4k-utils-3.13 2002/01/31 XMONISDN(1)
