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xmail is an X-based interface to the Berkeley mail program. This version of xmail depends heavily upon the installation of the application default resources file for the proper declaration of features and enhancements documented in the man pages. If the defaults file or the resource declarations are not installed or in some manner made accessable to the X11 resource database manager, xmail will operate in only a minimal fashion. This version of xmail includes support for decompressing and displaying the content of an X-Face mail header, if such a header exists in the message being read. This feature is a compile time option, and requires the existence of the compface library routines, which are NOT supplied with the xmail sources. X-Face headers are compressed bitmap images, typically of the face of the person owning such a header. The compressed header contains only printable characters, which allows it to be included in a mail message.

Clasp is an answer set solver for (extended) normal logic programs. It combines the high-level modeling capacities of answer set programming (ASP) with state-of-the-art techniques from the area of Boolean constraint solving. The primary clasp algorithm relies on conflict-driven nogood learning, a technique that proved very successful for satisfiability checking (SAT). Unlike other learning ASP solvers, clasp does not rely on legacy software, such as a SAT solver or any other existing ASP solver. Rather, clasp has been genuinely developed for answer set solving based on conflict-driven nogood learning. clasp can be applied as an ASP solver (on SMODELS format, as output by Gringo), as a SAT solver (on a simplified version of DIMACS/CNF format), or as a PB solver (on OPB format).

[ excerpt from developer's site ] - What is GStreamer? GStreamer allows the construction of graphs of media-handling components, ranging from simple mp3 playback to complex audio (mixing) and video (non-linear editing) processing. Applications can take advantage of advances in codec and filter technology transparently. Developers can add new codecs and filters by writing a simple plugin with a clean, generic interface. GStreamer is released under the LGPL, with many of the included plugins retaining the license of the code they were derived from, usually GPL or BSD. - Features: * Comprehensive Core Library * Intelligent Plugin Architecture * Extensive Development Tools - Is GStreamer a media player? No, GStreamer is a development framework for creating applications like media players, video editors, streaming media broadcasters and so on. That said, very good media players can easily be built on top of GStreamer and we even include a simple yet functional mediaplayer with GStreamer called Gst-Player

GStreamer allows the construction of graphs of media-handling components, ranging from simple mp3 playback to complex audio (mixing) and video (non-linear editing) processing. Applications can take advantage of advances in codec and filter technology transparently. Developers can add new codecs and filters by writing a simple plugin with a clean, generic interface. GStreamer is released under the LGPL, with many of the included plugins retaining the license of the code they were derived from, usually GPL or BSD. - Features: * Comprehensive Core Library * Intelligent Plugin Architecture * Extensive Development Tools - Is GStreamer a media player? No, GStreamer is a development framework for creating applications like media players, video editors, streaming media broadcasters and so on. That said, very good media players can easily be built on top of GStreamer and we even include a simple yet functional mediaplayer with GStreamer called Gst-Player

hping is a command-line oriented TCP/IP packet assembler/analyzer. The interface is inspired to the ping(8) Unix command, but hping isn't only able to send ICMP echo requests. It supports TCP, UDP, ICMP and RAW-IP protocols, has a traceroute mode, the ability to send files between a covered channel, and many other features. While hping was mainly used as a security tool in the past, it can be used in many ways by people that don't care about security to test networks and hosts. A subset of the stuff you can do using hping: - Test firewall rules - [spoofed] port scanning - Test net performance using different protocols, packet size, TOS (type of service) and fragmentation. - Path MTU discovery - Files transfering even between really fascist firewall rules. - Traceroute like under different protocols. - Firewalk like usage. - Remote OS fingerprint. - TCP/IP stack auditing.

EPP is the Extensible Provisioning Protocol. EPP (defined in RFC 3730) is an application layer client-server protocol for the provisioning and management of objects stored in a shared central repository. Specified in XML, the protocol defines generic object management operations and an extensible framework that maps protocol operations to objects. As of writing, its only well-developed application is the provisioning of Internet domain names, hosts, and related contact details. RFC 3734 defines a TCP based transport model for EPP, and this module implements a proxy server for this model. You can use it to construct a daemon that maintains a single connection to the EPP server that can be used by many local clients, thereby reducing the overhead for each transaction. Net::EPP::Proxy is based on the Net::Server framework and Net::EPP::Client, which it uses to communicate with the server.

KeyNote is a simple and flexible trust-management system designed to work well for a variety of large- and small- scale Internet-based applications. It provides a single, unified language for both local policies and credentials. KeyNote policies and credentials, called `assertions,' contain predicates that describe the trusted actions permitted by the holders of specific public keys. KeyNote assertions are essentially small, highly-structured programs. A signed assertion, which can be sent over an untrusted network, is also called a `credential assertion.' Credential assertions, which also serve the role of certificates, have the same syntax as policy assertions but are also signed by the principal delegating the trust. This is an example implementation of the KeyNote Trust-Management System as specified in IETF draft <draft-blaze-ietf-trustmgt-keynote-02.txt>.

This module implements TEA, the Tiny Encryption Algorithm, and some Modes of Use, in Perl and JavaScript. The $key is a sufficiently longish string; at least 17 random 8-bit bytes for single encryption. Crypt::Tea_JS can be used for secret-key encryption in general, or, in particular, to communicate securely between browser and web-host. In this case, the simplest arrangement is for the user to enter the key into a JavaScript variable, and for the host to retrieve that user's key from a database. Or, for extra security, the first message (or even each message) between browser and host could contain a random challenge-string, which each end would then turn into a signature, and use that signature as the encryption-key for the session (or the reply).

The LibXDiff library implements basic and yet complete functionalities to create file differences/patches to both binary and text files. The library uses memory files as file abstraction to achieve both performance and portability. For binary files, LibXDiff implements (with some modification) the algorithm described in File System Support for Delta Compression by Joshua P. MacDonald, while for text files it follows directives described in An O(ND) Difference Algorithm and Its Variations by Eugene W. Myers. Memory files used by the library are basically a collection of buffers that store the file content. There are two different requirements for memory files when passed to diff/patch functions. Text files for diff/patch functions require that a single line do not have to spawn across two different memory file blocks. Binary diff/patch functions require memory files to be compact. A compact memory files is a file whose content is stored inside a single block.

jdresolve resolves IP addresses to hostnames. Any file format is supported, including those where the line does not begin with the IP address. One of the strongest features of the program is the support for recursion, which can drastically reduce the number of unresolved hosts by faking a hostname based on the network that the IP belongs to. DNS queries are sent in parallel, which means that you can decrease run time by increasing the number of simultaneous sockets used (given a fast enough machine and available bandwidth). By using the database support, performance can be increased even further, by using cached data from previous runs. Included is a tiny shell script called rhost to interface with jdresolve when resolving a single IP address. Think of it as a smart replacement for the 'host' utility that comes with bind-utils.