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CRlibm is an efficient and proven mathematical library, which provides implementations of the double-precision C99 standard elementary functions, correctly rounded in the four IEEE-754 rounding modes, and sufficiently efficient in average time, worst-case time, and memory consumption to replace existing libms transparently. The distribution includes extensive documentation with the proof of each function (currently more than 100 pages), as well as all the Maple scripts used to develop the functions. This makes this library an excellent tutorial on software elementary function development. CRlibm also includes a lightweight library for multiple precision, scslib (Software Carry Save Library). This library has been developed specifically to answer the needs of the CRlibm project: precision up to a few hundred bits, portability, compatibility with IEEE floating-point standards, performance comparable to or better than GMP, and a small footprint. It uses a data-structure which allows carry propagations to be avoided during multiple-precision multiplications, and supports addition, subtraction, multiplication, and conversions.

From README: Aclgen is a tool to create minimal length ip access lists and aggregated routing tables primarily for Cisco routers. Aclgen is fast. It takes only 15 seconds to create a 17000 line long access list for some 44000 entries of my routing table. Aclgen is flexible. It accepts various input formats and you can specify any output format by a printf like format-string. Aclgen is intended to use in large scripts creating router configuration from different databases. Any contribution is welcome. Send me your script using aclgen. I'll bundle it with the program.

This is a fairly complete CPU identification utility. It has been tested on several Intel, AMD and Cyrix CPUs. If the Pentium III serial number misfeature is present and enabled, this program will display it.

Cross Stitch software.

DejaGnu is a framework for testing other programs. Its purpose is to provide a single front end for all tests. Think of it as a custom library of Tcl procedures crafted to support writing a test harness. A Test Harness is the testing infrastructure that is created to support a specific program or tool. Each program can have multiple testsuites, all supported by a single test harness. DejaGnu is written in Expect, which in turn uses Tcl -- Tool command language.

DigiTemp is a simple to use console application for reading values from Dallas Semiconductor 1-wire devices. Its main use is for reading temperature sensors, but it also reads counters and understands the 1-wire hubs with devices on different branches of the network. DigiTemp now supports the following 1-wire temperature sensors: DS18S20 (and DS1820), DS18B20, DS1822, the DS2438 Smart Battery Monitor, DS2422 and DS2423 Counters, DS2409 MicroLAN Coupler (used in 1-wire hubs) and the AAG TAI-8540 humidity sensor.

This is a simplified 3D world with alpha-blended objects that look kind of like fireworks or sparks. It also has a number of effects built in, such as fading, blurring, fire ("heat"), and zooming. It serves no purpose except to look pretty. The source-code is also well-documented, so someone might find it useful in learning SDL routines.

The Free Software Foundation's "find" utilities, including "find", "locate", and "xargs". These utilities exist in the FreeBSD base collection, but the GNU versions have added functionality that is sometimes useful. Note that this port will install these utilities with a `g' prefix, eg., glocate, gfind, gxargs, but the texinfo documentation will refer to these utilities without the `g' prefix.

Countrycodes is an ISO 3166 country code finder. It is mainly used to know the country a domain name belongs to. It also allows searching by 2 or 3 letters codes, country number and country name.

Cstream filters data streams, much like the UNIX tool dd(1). It has a more traditional commandline syntax, support for precise bandwidth limiting and reporting and support for FIFOs. Data limits and throughput rate calculation will work for files > 4 GB. Cstream reads from the standard input and writes to the standard output, if no filenames are given. It will also 'generate' or 'sink' data if desired.