/usr/ is in libadasockets6-dev 1.9-1.1.
This file is owned by root:root, with mode 0o755.
..
/usr/bin/
/usr/bin/adasockets-config
/usr/lib/
/usr/lib/ada/
/usr/lib/ada/adalib/
/usr/lib/ada/adalib/adasockets/
/usr/lib/ada/adalib/adasockets/sockets-constants.ali
/usr/lib/ada/adalib/adasockets/sockets-link.ali
/usr/lib/ada/adalib/adasockets/sockets-multicast.ali
/usr/lib/ada/adalib/adasockets/sockets-naming.ali
/usr/lib/ada/adalib/adasockets/sockets-stream_io.ali
/usr/lib/ada/adalib/adasockets/sockets-thin.ali
/usr/lib/ada/adalib/adasockets/sockets-types.ali
/usr/lib/ada/adalib/adasockets/sockets-utils.ali
/usr/lib/ada/adalib/adasockets/sockets.ali
/usr/lib/libadasockets.a
/usr/lib/libadasockets.la
/usr/lib/pkgconfig/
/usr/lib/pkgconfig/adasockets.pc
/usr/share/
/usr/share/ada/
/usr/share/ada/adainclude/
/usr/share/ada/adainclude/adasockets/
/usr/share/ada/adainclude/adasockets/sockets-constants.ads
/usr/share/ada/adainclude/adasockets/sockets-link.ads
/usr/share/ada/adainclude/adasockets/sockets-multicast.adb
/usr/share/ada/adainclude/adasockets/sockets-multicast.ads
/usr/share/ada/adainclude/adasockets/sockets-naming.adb
/usr/share/ada/adainclude/adasockets/sockets-naming.ads
/usr/share/ada/adainclude/adasockets/sockets-stream_io.adb
/usr/share/ada/adainclude/adasockets/sockets-stream_io.ads
/usr/share/ada/adainclude/adasockets/sockets-thin.ads
/usr/share/ada/adainclude/adasockets/sockets-types.ads
/usr/share/ada/adainclude/adasockets/sockets-utils.adb
/usr/share/ada/adainclude/adasockets/sockets-utils.ads
/usr/share/ada/adainclude/adasockets/sockets.adb
/usr/share/ada/adainclude/adasockets/sockets.ads
/usr/share/ada/adainclude/adasockets.gpr
/usr/share/doc/
/usr/share/doc/libadasockets6/
/usr/share/doc/libadasockets6/adasockets.pdf.gz
/usr/share/doc/libadasockets6/examples/
/usr/share/doc/libadasockets6/examples/Makefile
/usr/share/doc/libadasockets6/examples/examples.gpr
/usr/share/doc/libadasockets6/examples/listener.adb
/usr/share/doc/libadasockets6/examples/multi.adb
/usr/share/doc/libadasockets6/examples/stream_listener.adb
/usr/share/doc/libadasockets6/examples/stream_sender.adb
/usr/share/doc/libadasockets6/examples/tcprelay.adb
/usr/share/doc/libadasockets6/examples/value.adb
/usr/share/info/
/usr/share/info/adasockets.info.gz
/usr/share/man/
/usr/share/man/man1/
/usr/share/man/man1/adasockets-config.1.gz
/usr/lib/libadasockets.so
/usr/share/doc/libadasockets6-dev