iroffer is a fileserver for IRC (commonly referred to as a DCC bot). It uses the DCC feature of IRC to send files to other users. iroffer will connect to an IRC server and let people request files from it. iroffer is not a script, it is a standalone executable written in C.
bsidentd is a bare minimum and secure identd
server, based on nullidentd. It can generate a
random string for a username. It makes IRC servers
happy, and it helps avoid ban scripts by not
having a fixed username.