control: reassign -1 sway Hello,
On Wed 02 Jun 2021 at 08:09AM GMT, Daniel Eklof wrote: > Hi (author of foot here), > > I happened to see this bug, and it caught my interest. What I found is this: > > SIGPIPE is Sway's doing. It configures it to be ignored (by setting its > signal handler to SIG_IGN). Now, normally signal dispositions are restored to > their defaults after an exec(). The exception is ignored signals, which _do_ > get inherited. > > The combination of foot+bash is important too, because neither foot, nor bash > restore signals they don't touch. In other words, SIGPIPE being ignored is > inherited from Sway, through foot, through bash, and finally into dgit. Both > zsh and fish appear to reset all signals, and are not affected. > > Now, foot _could_ also restore all signals, just like zsh and fish. For the > time being I think it's better not to do so, since it would just have hidden > the bug in Sway. > > There was also a bug in foot, where an ignored SIGHUP could "leak" into > spawned processes. > > I'll try to put together a patch for sway. Thank you for your input here. Very helpful. -- Sean Whitton
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