Information about my software
Phone was written in October 1996 to make some sort of radiotelephony over the
network. In these days there where only a few Windows programs allowing to record what you were
talking. The software saved it to disk and after talking the voice data was transferred to the
As you can image this is not very powerful and you have to wait all the time
for the transfer. Therefore I wrote a small application allowing to transmit
the voice data instantly via UDP to the other hosts and playing it immediatly
after reception on the remote host. After pressing the return key the receive
and transmit roles get exchanged.
In 1996 full duplex sound cards were rare and
pretty expensive and therefore the operating is more similar to normal
radiotelephony then to a phone call.
The programm shows how to
- Open a UDP socket in the Unix environment and how to transmit data packets.
- How to talk to the soundcard and how to play and record sound.
In the meantime there is better software available. Phone is not as good as
for example Speekfreely...
Back to my english homepage
kderadio is a programm that enables access to a video4linux compatible radio card.
It is a real KDE programm that tries to use the KDE features to be as useful as possible.
Unfortunatly a lot of programms try to be compatible to a real radio and really emulate
even the disadvantages of a real radio, for example the limited amount of station memory slots.
kderadio tries to avoid these disadvantages and uses only standard control
widgets which enables easy operation. As there are nice icons (partly drawn by myself) in
the package the program looks pretty good.
Since end of July 2001 there is even a KDE-2.1 version available. Please take a look
at the download area of my site.
yabri (Yet another
bridge) was created during my time at the university while living
in the dormitory as a co product of Rainer
Bawidamann and myself. This software is a normal Layer II networking bridge
for DOS and runs on computers with a 286'er CPU or higher.
If you want to use this software, you'll only need normal packat drivers for
your networking cards, a DOS (for example the free Novell DOS) and
of course. You can even assign an IP address to yabri to check whether your bridge
is living by pinging it. There is a small tftp `server' implemented providing
some status information. Yabri keeps track of the MAC addresses and is able
to handle 254 entries in the MAC lookup table. Yabri comes with a lot of documentation
and README file and is easy to install.
logn notifies you of logins of other users on the machine
you are logged in. If logn is started during your login phase and is put
into the background you get a one line notification of a login of other
users directly on your console. You can create a configuration file notifying
you about login of really important users. An ASCII BEL is created
if one of the configured important users logs on. As a very special feature
an ASCII NUL is written every 8 minutes to STDOUT to disable connection
timeouts if you have a very restrictive firewall or NAT inbetween you
and the remote host you are logged in. The software comes with man page