neon is a library for accessing HTTP and WebDAV

WebDAV

Web-based Distributed Authoring and Versioning is a set of methods based on the Hypertext Transfer Protocol that facilitates collaboration between users in editing and managing documents and files stored on World Wide Web servers...

 servers for the C programming language. It is free software

Free software

Free software, software libre or libre software is software that can be used, studied, and modified without restriction, and which can be copied and redistributed in modified or unmodified form either without restriction, or with restrictions that only ensure that further recipients can also do...

 and is licensed under LGPL

GNU Lesser General Public License

The GNU Lesser General Public License or LGPL is a free software license published by the Free Software Foundation . It was designed as a compromise between the strong-copyleft GNU General Public License or GPL and permissive licenses such as the BSD licenses and the MIT License...

.

neon relies on either OpenSSL

OpenSSL

OpenSSL is an open source implementation of the SSL and TLS protocols. The core library implements the basic cryptographic functions and provides various utility functions...

 or GnuTLS

GnuTLS

GnuTLS , the GNU Transport Layer Security Library, is a free software implementation of the SSL and TLS protocols. Its purpose is to offer an application programming interface for applications to enable secure communication protocols over their network transport layer.-Features:GnuTLS consists of...

 for secure https

Https

Hypertext Transfer Protocol Secure is a combination of the Hypertext Transfer Protocol with SSL/TLS protocol to provide encrypted communication and secure identification of a network web server...

 connections and either libxml

LibXML

libxml2 is a software library for parsing XML documents. It is also the basis for the libxslt library which processes XSLT-1.0 stylesheets.-Description:...

 or expat

Expat (XML)

In computing, Expat is a stream-oriented XML 1.0 parser library, written in C. As one of the first available open-source XML parsers, Expat has found a place in many open-source projects. Such projects include the Apache HTTP Server, Mozilla, Perl, Python and PHP...

 for parsing WebDAV XML

XML

Extensible Markup Language is a set of rules for encoding documents in machine-readable form. It is defined in the XML 1.0 Specification produced by the W3C, and several other related specifications, all gratis open standards....

 responses.

Among others, neon is used by the Subversion version control system, GnomeVFS file system abstraction layer and the davfs2

Davfs2

In computer networking davfs2 is a Linux tool for connecting to WebDAV shares as though they were local disks. It an open-source GPL-licensed file system for mounting WebDAV servers. For communicating with the kernel, davfs2 can either use the FUSE file system API, or the Coda network file system...

network file system.