I wonder at the legal status of code that is publicly posted, with an implied “come get it” message…

Specifically, of course, I’m thinking of the WPMU LDAP plugin… It was originally developed for standard WordPress by one author, posted, taken by another, modified, reposted, modified, adapted for WPMU, and on.  It has 5 listed authors, none of which, to my knowledge, have posted the code with licensing.  I wanna release it publicly as well, but I really don’t wanna step on the toes of the original authors.  What license to pick?  sigh.

I just don’t wanna sit in legal limbo, but I wanna make sure that their rights are preserved.  The developers on whose shoulder’s I’m standing were kind enough to let me stand there… I just don’t want to kick them in the eye while I’m up here.  :)

-sean