====== Java Supdup ======

<note>
This code is not maintained and it has been a while since it worked well for me, under macOS. I **recommend** [[https://github.com/PDP-10/supdup|the C client]] instead!
</note>

Download ([[http://victor.se/bjorn/its/supdup.jar|precompiled]] for Java 1.5, or the [[http://victor.se/bjorn/its/supdup-src.jar|source]]) a Supdup-enabled version of the [[http://www.javatelnet.org/|Java Telnet application]]. The original code is fairly easy to add plugins to, but so far I had to hardcode the use of the supdup terminal emulator, so this version is only useful for Supdup.

  ?? 2009-04-05 :: handle MacOS X Escape key and Control-Space, and supply a [[http://victor.se/bjorn/its/Supdup.dmg|MacOS application]] ([[http://victor.se/bjorn/its/Supdup-app.tar.gz|.tar.gz]]). (The Alt key doesn't work yet.) !!
  ?? 2005-08-10 :: avoids idle (logged-in) disconnection by periodically sending a "keep-alive" to ITS. !!
  ?? 2005-08-06 :: supports the [[http://up.update.uu.se/sailch%20html|SAIL character set]]! Thanks MMcM! !!

To run, use

    java -jar supdup.jar [hostname]

Note that the window can be resized, but the change only gets through to ITS at connection time (due to the Supdup protocol). Note also that you can use <key>Ctrl-x</key> for non-alpha <key>x</key>, e.g. digits, at least in Linux - it doesn't seem to work in Windows. Note also that you can [[http://up.update.uu.se/supdup%20html|use it as an applet]], if your Java sandbox allows.

===== TO DO =====

Things to do on a rainy day:

  *  implement the graphics extension (RFC746) (and port Spacewar?)
  *  add a plugin for Chaosnet (over the CHUDP protocol, see here) to connect to Chaos-only hosts

Java is a trademark or registered trademark of Sun Microsystems, Inc. in the United States and other countries. The Java Supdup author (Björn Victor) is independent of Sun Microsystems, Inc.