What license does OpenSolaris use?
Most of the code Sun has released is covered by the CDDL, a descendant of Mozilla’s MPL. It is similar to the LGPL license, except it provides patent protection for licensees, and only requires providing the source of the CDDL covered source files, not the entire binary. (IE: The user of a CDDL licensed work, receives limited patent licenses so that they can make use of that code, without fear of patent infringement.) OpenSolaris also includes components (such as GNOME, X11, Perl, Apache) covered by GPL, LGPL, BSD, MIT/X11, and a variety of other licenses.
