First, copyright to any contribution to Crossroads I/O remains with the original copyright holder.
Second, the Crossroads I/O project is licensed under the GNU Lesser General Public License (LGPL), version 3 (or, at your option, any later version). If you are not familiar with this license, please ensure that you have read the complete text of GPLv3 and LGPLv3 before submitting your contribution.
Third, by contributing to the project you are grant users an additional exception to link any applications with libxs statically. Please refer to the full text of this additional licensing clause: static linking exception.
Finally, by contributing to this project you certify that your contribution was written in whole or in part by yourself, and/or you have the right to submit the contribution under these terms. Please, read the full text of the certificate of origin.