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> By the way, shouldn't msys_tty_on_handle be marked 'unsafe' too? I'm wondering if what happens I pass in some garbage as a handle...

Possibly. How would you construct said garbage? Would it require unsafe?

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I'm not sure, probably yes. It all depends on the winapi crate. If you can get an handle of a different "type" than the expected one, then it's garbage for GetFileInformationByHandleEx. Probably you can't do it without unsafe, so maybe it's fine.

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