040000 tree 91dbb9a7de764a596b1a65e0c7473a07a3af3a73	ccnping
040000 tree 049c20cab66dbd5666fbf0dfaa8f633fd61fd0fc	ccnx-repo
040000 tree 5e308c32bdc66d1352bbafe334b0fe177c32a9a9	ccnx-trace
040000 tree 36ef07d4c32606795cb08f6082383473f40a8478	ccnx
040000 tree 35cc195c8ef09e653eb609261b57fee910f5ea43	ndndump
040000 tree 9adafd8dec8b599caedd4b775104c65eb229b4be	py-pyccn