Wrapper library API documentation.
The libdarc API documentation is complete and includes documentation on libdrc, the dar run configuration file library. The API is completely implemented with the exception of the drc file writer functions.
To understand how this library would be used, a good place to start is the libdar tutorial for the C++ library. API documentation is also available for the original C++ library on the DAR homepage.
While it's not ready to be released, the Darjob application also provides a good example of how to use both libdarc and libdrc. A fairly recent snapshot can be found here.