/usr/ is in libace-ssl-dev 6.4.5+dfsg-1build2.
This file is owned by root:root, with mode 0o755.
..
/usr/share/doc/
/usr/share/doc/libace-ssl-dev/
/usr/include/
/usr/include/ace/
/usr/include/ace/SSL/
/usr/include/ace/SSL/SSL_Asynch_BIO.h
/usr/include/ace/SSL/SSL_Asynch_Stream.h
/usr/include/ace/SSL/SSL_Asynch_Stream.inl
/usr/include/ace/SSL/SSL_Context.h
/usr/include/ace/SSL/SSL_Context.inl
/usr/include/ace/SSL/SSL_Export.h
/usr/include/ace/SSL/SSL_Initializer.h
/usr/include/ace/SSL/SSL_SOCK.h
/usr/include/ace/SSL/SSL_SOCK.inl
/usr/include/ace/SSL/SSL_SOCK_Acceptor.h
/usr/include/ace/SSL/SSL_SOCK_Acceptor.inl
/usr/include/ace/SSL/SSL_SOCK_Connector.h
/usr/include/ace/SSL/SSL_SOCK_Connector.inl
/usr/include/ace/SSL/SSL_SOCK_Stream.h
/usr/include/ace/SSL/SSL_SOCK_Stream.inl
/usr/include/ace/SSL/sslconf.h
/usr/lib/
/usr/lib/pkgconfig/
/usr/lib/pkgconfig/ACE_SSL.pc
/usr/share/
/usr/share/doc/libace-ssl-dev/copyright
/usr/share/lintian/
/usr/share/lintian/overrides/
/usr/share/lintian/overrides/libace-ssl-dev
/usr/lib/libACE_SSL.so
/usr/share/doc/libace-ssl-dev/changelog.Debian.gz