libsockhop.so is licensed under the GNU Public License, which is described in the included file named COPYING. Other included software, including SockDemo, its associated add-on classes, and any and all demo/example code, is released to the public domain.
Source code for SockHop can be found in a separate archive on my web page at http://www-wilson.ucsd.edu/~jaf.
If you make additions or modifications to the source code that you think should be merged back into the main distribution, please send your modifications, together with a description of what they do/fix, to me via email.