Barracuda Networks VERSION SP4 - Manual (Page 265)

263 Barracuda Networks Warranty and Software License Agreement
Barracuda Networks makes available the source code used to build Barracuda products available at source.barracuda.com.
This directory includes all the programs that are distributed on the Barracuda products. Obviously not all of these programs
are utilized, but since they are distributed on the Barracuda product we are required to make the source code available.
(v2.5)