Happy is a parser generator system for Haskell, similar to the tool 'yacc' for C. Like yacc, it takes a file containing an annotated BNF specification of a grammar and produces a Haskell module containing a parser for the grammar. It is flexible: you can have several Happy parsers in the same program, and several entry points to a single grammar. It can work in conjunction with a lexical analyser supplied by the user (either hand-written or generated by another program), or it can parse a stream of characters directly (but this isn't practical in most cases).
DiggerDiff is a simple program to help you keep an eye out for changes in Web pages you are interested in. It fetches each page in its list and compares the contents against an older copy of that page stored locally and displays the results. If a page has changed, a link is given to display the differences between the old and new versions so you can easily spot the changes. You can also specify multiple search and replace expressions to apply to the local copies of each page. This can be useful to minimize changed results for pages that often have predictable, small changes that are not important, and to clean up the display of the differences.
oftpd is designed to be as secure as an anonymous FTP server can possibly be. It runs as non-root for most of the time, and uses the Unix chroot() command to hide most of the systems directories from external users--they cannot change into them even if the server is totally compromised. It also contains its own directory-change and directory-listing code (most FTP servers execute the system "ls" command to list files).
e2fsimage enables the user to create and populate an ext2 filesystem image as a copy from an existing directory tree. It supports regular files, directories, soft links, hard links, and block/char special devices. The ownership of all files is changed to root, by default, while the permissions are kept.
libpdtp is a client library for the Peer Distributed Transfer Protocol, which provides BitTorrent-like content distribution through a peer network while allowing servers or server clusters to export a dynamically changing directory hierarchy, making PDTP suitable for roles currently filled by HTTP or FTP servers. It is designed to be equally as usable in single-threaded CLI applications or multi-threaded GUI applications.
rfc2mib is a short Tcl script which may be used to extract MIB (Management Information Base), PIB (Policy Information Base), and ASN.1 modules from an RFC document. Unlike most extractors, this script is smart enough to recognize ASN.1-style comments prior to or within the module header. It also recognizes the use of the "TagDefaults" part of the module header (not used by MIB modules), module headers that are broken across multiple lines, and macro definitions.