libtrace is a library for capturing and processing network traffic, similar to
libpcap. Libtrace supports multiple trace formats for both input and output
including live device capture, DAG hardware capture and off-line trace files
(both compressed and uncompressed).

More information about libtrace can be found on the libtrace webpage.

Original port created by Matt Peterson <matt at peterson.org>
Updated for FreeBSD 9.0 by Shane Alcock <salcock at waikato.ac.nz>