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2014-12-23do not make PTY slave the controlling terminalDavid Kalnischkies
If we have no controlling terminal opening a terminal will make this terminal our controller, which is a serious problem if this happens to be the pseudo terminal we created to run dpkg in as we will close this terminal at the end hanging ourself up in the process… The offending open is the one we do to have at least one slave fd open all the time, but for good measure, we apply the flag also to the slave fd opening in the child process as we set the controlling terminal explicitely here. This is a regression from 150bdc9ca5d656f9fba94d37c5f4f183b02bd746 with the slight twist that this usecase was silently broken before in that it wasn't logging the output in term.log (as a pseudo terminal wasn't created). Closes: 772641
2014-11-28fix PTY interaction on linux and kfreebsdDavid Kalnischkies
We run dpkg on its own pty, so we can log its output and have our own output around it (like the progress bar), while also allowing debconf and configfile prompts to happen. In commit 223ae57d468fdcac451209a095047a07a5698212 we changed to constantly reopening the slave for kfreebsd. This has the sideeffect though that in some cases slave and master will lose their connection on linux, so that no output is passed along anymore. We fix this by having always an fd referencing the slave open (linux), but we don't use it (kfreebsd). Failing to get our PTY up and running has many (bad) consequences including (not limited to, nor all at ones or in any case) garbled ouput, no output, no logging, a (partial) mixture of the previous items, … This commit is therefore also reshuffling quiet a bit of the creation code to get especially the output part up and running on linux and the logging for kfreebsd. Note that the testcase tries to cover some cases, but this is an interactivity issue so only interactive usage can really be a good test. Closes: 765687
2014-11-28close leaking slave fd after setting up pty magicDavid Kalnischkies
The fd moves out of scope here anyway, so we should close it properly instead of leaking it which will tickle down to dpkg maintainer scripts. Closes: 767774