Shapefile C Library is a C library for reading and writing ESRI Shapefiles and their related DBF files. All geometry types are supported, with robust DBF support. Shapelib is widely used for commercial and free projects. Shapelib includes command line utilities for dumping, subsetting, clipping, shifting, scaling, and reprojecting shapefiles.
adlook (Address Lookup tool) is a multi-threaded host name and technical contact lookup tool. It accepts a list of IP addresses from the command line, from a data file, or from stdin, and outputs the hostname and technical contact for each address. Although it is written in Python, for the time being it runs only on UNIX systems. Python must have been compiled with threads enabled to run adlook.
GeekOS is a tiny operating system kernel for x86 PCs. Its goal is to be simple enough for beginners to understand and modify, but realistic enough to be interesting and fun. The primary development environment for GeekOS is Linux or Windows using gcc, nasm, and the Bochs PC emulator.
XML Binary Infoset Encoding (XBIS) is an encoding designed to eliminate most of the padding of XML text documents being passed between programs, while being faster to generate and interpret. The focus is more on speed than on size, so if document size is the major concern standard compression algorithms can offer superior results. The current Java implementation shows 4-8X performance benefits over standard XML parsers over a range of document types and sizes and across JVMs tested.
JEnable gives an easy way of controlling different build options within Java source code. It allows you to maintain and distribute a single set of source files which can support multiple configurations. The program can be executed from various types of build scripts (including Ant scripts) to automatically change the source configuration on demand. To accomplish this it uses control information embedded in Java code as comment lines with a special format.