neon is an HTTP and WebDAV client library for Unix systems, with a C language API. It provides high-level interfaces to HTTP/1.1 and WebDAV methods, and a low-level interface to HTTP request/response handling, allowing new methods to be easily implemented.
sitecopy allows you to easily maintain remote Web
sites. The program will upload files to the server
which have changed locally, and delete files from
the server which have been removed locally,
keeping the remote site synchronized. FTP and
WebDAV are supported.
pakchois is just another PKCS#11 wrapper library.
pakchois aims to provide a thin wrapper over the
PKCS#11 interface. It offers a modern
object-oriented C interface which does not hide
any of the underlying interface, and avoids
dependencies on any cryptography toolkit.