Having worked on various projects, the majority of the code I have written has been closely tied to particular pieces of larger software. However, below there are a very few that I have actually managed to extract into self-contained packages.
The software below is not supported - it is all provided "as is". Generally, it is not maintained. If you find it useful please let me know ... if you find any bugs please let me know (no promises to fix, mind!) ... if you use any of this stuff please leave in an ACK ...
C | https://ilnp.cs.st-andrews.ac.uk/ (includes link to github)
ILNP is an ongoing project to change the Internet architecture in terms of addressing and the way certain functionality is implemented. Much of the coding work has been completed by a number of my PhD students, to whom I am very grateful!
Follow the link for details.
java | link
This is software from a research project. I have led the design and architecture activities but most of the code was written by Richard Smith. Follow the link for details.
C | PDF | zip
This is a slightly modified version of fping v2.4b2-to-ipv6.
I have added a '-T' flag to allow microsecond timestamps for each ping.
I have tried contacting the maintainer (twice) to have the patch put
into the main release but have recieved no response ... so here it is!
The man page for fping is here.
java | zip | jar | link
This (now very old) Java package allows you to make (canonical)
byte encodings for char, short, int, long, float and double. I
for some students so they could build arbitary protocol packets with
Java. It was written for JDK 1.4.1 but I suspect it will work with
later JDKs (try it and see).
An example program showing how to use it is here.
Online documentation is here.
C | zip
This is my (very old but quite fast) software
implementation of the Data Encryption Standard (DES). This uses a standard 56-bit key (i.e. 64 bits which includes 8 parity bits), supports the various DES modes (ECB, CBC, CFB, and OFB), and can be used for 'triple DES' operation. However, before you use DES, read this.
qfDES is used in the UCL multimedia tools, was previously used in the Open Mash tools and the UCL OSIMIS platform (which has now been retired!).
The man page for the qfDES API is here.
C & C++ | .tar.bz2
Some code to help with debugging, including hexdumpers, loggers, tracers and error printers. The logging code has separate C and C++ implementations. No documentation ... but it is reasonably easy to use.
C | .c file
And finally, for an example of well-structured, self-documenting, code ... see if you can guess what it does before you run it! It was one of the winning entries in the 5th International Obfuscated C Code Contest in 1988. It was written by Ian Phillips who worked at Cambridge Consultants at the time.