Added to the Debian bug report. Basically the output problem is related to a Debian add-on patch to introduce the -q# option (delayed exit) which has been incorrectly adapted to the new code. However while testing a possible solution I found that upstream changed the default behaviour of nc to not shutdown the net socket when the local input stream closes. Now this requires using -N to get this back.
-- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to netcat-openbsd in Ubuntu. https://bugs.launchpad.net/bugs/1656785 Title: nc -d -l does not return data (only empty strings) Status in netcat-openbsd package in Ubuntu: New Status in netcat-openbsd package in Debian: New Bug description: The Zesty (17.04) version of nc (1.130-1ubuntu1) no longer returns the received data when using the '-d' (do not listen on stdin) flag together with the '-l' (listen on socket) flag. This used to work in previous releases (1.105-7ubuntu1 Trusty-Yakkety). In fact, in the previous version, the '-d' flag seems to be required to make the data transfer more reliable in scripts. Testcase: Attached script passes on older versions, fails with the current version of nc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/netcat-openbsd/+bug/1656785/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp