Is the LDAP SDK open source?
Yes. The Standard Edition is available under the GPLv2 and LGPLv2.1, which are OSI-approved open source licenses. The full source for the LDAP SDK is available in the src.zip file which is included in the SDK download. The LDAP SDK is also available under the terms of the UnboundID LDAP SDK Free Use License. This is not an OSI-approved open source license, but should be fully compatible with many existing open source licenses.