Laurent Bercot wrote: > > So I've pushed a fix to the current execline > git, please tell me if it works for you.
Yes, that worked. > However, POSIX considers that UB is acceptable when you run a > program with 0, 1 or 2 closed: look for "If file descriptor 0" in > http://pubs.opengroup.org/onlinepubs/9699919799/functions/execve.HTML Ah, I see. > I'll try to support the case as much as I can, and squash those bugs > whenever they're found, but still, don't do that - Big Bad POSIX will > bite you if you do. Let's narrow the scope: > I consider it a bug, because there are cases where I do need to > run programs with fds 0, 1 or 2 closed, and I generally try to > pay attention to this. I ran into this while experimenting with the example / template stage 1 and 3 init scripts that come with s6's source code. Both of them do an early fdclose 0 to ignore input. Wouldn't that be tempting the demons to fly through your nose, then? :) Anyway, I had either replaced the early fdclose 0 with redirfd -r 0 /dev/null (and also realized that worked by accident, because I somehow have a nonempty /dev at startup) or delayed it a bit. I suppose that's good enough... Thanks, G.
