SaVi is satellite visualization software that lets you create, run, examine, and modify satellite orbits in two and three dimensions. Simulations of Iridium, Globalstar, Galileo, GPS, and other satellite constellations are included. SaVi requires Tcl and Tk on a system with Unix libraries. SaVi works well with the 3D renderer Geomview. Geomview is optional, though recommended for its 3D rendering capabilities.
McStas is a computer program (written in C) that enables you to model very precisely a neutron instrument described as a series of various components. A source component shoots each neutron randomly (Monte-Carlo), and the particle is then propagated through the different instrument components. These later act on the neutron characteristics (position, speed, direction, spin, etc.). Usually, one installs some detectors along the neutron path to monitor its characteristics and flux.
Vectoroids is based on the X-Window PDA game 'Agendaroids,' but uses libSDL for graphics, sound, and input, and includes nicer graphics, sound effects, and music. The objective is to survive wave after wave of giant rocks, which you must shoot to break into smaller pieces, until they are completely destroyed.
Gangplank is a Computer Mediated Communication (CMC) system (or "chat server") which supports real-time communication between users, currently using a text-based user interface. It runs as an Internet server which implements the standard telnet protocol, so no special client program is necessary for users. Server-side processing provides input editing/history and terminal- handling features over the telnet connection for standard ANSI terminals. This code has been in production use on a private server since early 1993. This single-process server is fast, efficient and stable.
The NumericalChameleon converts numbers with a precision of up to 1000 significant figures. It supports more than 3200 units in 82 categories, including lengths, areas, volumes, durations, bits & bytes, angles, temperatures, exchange rates, Roman numerals, spoken numbers, all 35 radixes, unicode, colorcode, int. dial codes, timezones, date calculations and more. You have unlimited access for adding, modifying, and deleting categories, units, and icons. Update exchange rates with the GUI or at the command line. All configuration data are stored in flat files.
pxys is an efficient open proxy scanner software suite for Undernet IRC(u). It scans the clients' IPs to check for misconfigured WinGate, Cisco, SOCKS 4, SOCKS 5, some IRC bouncers, and other vulnerable HTTP proxies. Using the peak library for socket and asynchronous events handling, it is dedicated to run on huge IRCU networks, and is currently running on Undernet to avoid the overwhelming abuse of these proxy servers being exploited daily.
CAVE provides an (n)curses interface for viewing ASCII character animations. It features frame cueing, a screen saver (with shuffle), looping, support for gzipped compressed files, extended regular expression frame deliminator matching, autodetect of frame deliminator position, frame marking, and more.
OpenSC provides a set of libraries and utilities to work with smart cards. Its main focus is on cards that support cryptographic operations, and facilitates their use in security applications such as authentication, mail encryption, and digital signatures. OpenSC implements the PKCS#11 API so that applications supporting this API (such as Mozilla Firefox and Thunderbird) can use it. On the card, OpenSC implements the PKCS#15 standard, and aims to be compatible with every software/card that does so.