The ncurses (new curses) library is a freeware emulation of System V Release 4.0 curses. It uses terminfo format, supports pads and color and multiple highlights and forms characters and function-key mapping, and has all the other SYSV-curses enhancements over BSD curses. The distribution includes the library and support utilities, including a terminfo compiler tic, a decompiler infocmp, clear, tput, tset, and a termcap conversion tool captoinfo. Full manual pages are provided for the library and tools.
Spreadsheet::WriteExcel is a Perl module which can be used to create native Excel binary files. Formatted text and numbers can be written to multiple worksheets in a workbook. Formulas and functions are also supported. It is 100% Perl and doesn't require any Windows libraries or a copy of Excel. It will also work on the majority of Unix and Macintosh platforms. Generated files are compatible with Excel 97, 2000, 2002, and 2003, and with OpenOffice and Gnumeric. An older version also supports Excel 5/95.
This is a handy little library which provides a packet filtering mechanism based on the BSD packet filter (BPF). Most notably, tcpdump needs this to work, and there is also a perl module (still in beta) which can use this as well. In plain english, if you want to write your own network traffic analyzer, this is the place to start.
The ADAPTIVE Communication Environment (ACE) is an object-oriented (OO) C++ framework that helps you develop and deploy high-performance networked applications faster and with less code to write and maintain. ACE is especially useful for systems that use network and/or inter-process communications and that take advantage of multithreading. While the ACE source code is free, that's not the only way you save money with ACE. ACE's wrappers and higher-level patterns help you develop your software quickly and portably, helping you to complete your projects on time and within budget.
The OpenLDAP Project is a collaborative effort to provide a robust, commercial-grade, fully featured, open source LDAP software suite. The project is managed by a worldwide community of volunteers that use the Internet to communicate, plan, and develop OpenLDAP Software and its related documentation. OpenLDAP Software provides a complete LDAP implementation including server, clients, C SDK, and associated tools.
JpGraph is an OO graph drawing library for PHP 5.1 and above. Highlights of the available features are: multiple scale types; anti-aliasing of lines; color-gradient fills; support for GIF, JPEG, and PNG formats; and support for multiple Y axes. Many plot types are supported, such as pie-charts, lineplots, bar plots, impulse plots, polar plots, error plots, contour plots, matrix plots, gantt charts, and many more. The pro-version also contains extensive 1D and 2D barcode support. The documentation is extensive and is over 700 pages.