TCL2FTP is an extension library for Tcl scripts which allows Tcl programs to perform FTP client and gateway actions. It fully supports the FTP/FXP protocols, is ready for use with SSL/TLS, and is compatible with glFTPd. It can run simple FTP commands, and it supports 25 simultaneous FTP sessions.
cryptod is a program that listens on a TCP port or unix socket, receives information on that port, and performs the requested action. Common actions are aes256 encrypting/decrypting, base64 encoding/decoding, and RMD160 hashing. Interfacing with the daemon is well documented, and you are also easily able to obtain statistics from the server.
Post Scriptum is a programming language for preparing PostScript documents and programs. The language is procedural, and uses classical control structures (functions, loops, and conditional statements) and commonly known data types (numbers, arrays, strings, and dictionaries). Its syntax is simple, clear, and easy to learn. The compiler translates programs written in Post Scriptum directly to a PostScript file, which can be than executed by a PostScript interpreter (such as Ghostscript), printed, or used as a procset, driver, or library.
The iotools package provides a set of simple command line tools that allow access to hardware device registers. Supported register interfaces include PCI, I/O, memory mapped I/O, SMBus, CPUID, and MSR. Also included are some utilities that allow for simple arithmetic, logical, and other operations. If you ever have to debug hardware, you could probably use these tools.