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Subject: Re: Is it possible to exit the chroot(2) environment?
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Cc: Freebsd hackers list <freebsd-hackers@freebsd.org>
From: Craig Leres <leres@freebsd.org>
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Date: Sun, 27 Sep 2020 15:24:05 -0700
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Don't forget about fchdir(), I've used it (in non-chroot()) programs to 
implement pushd/popd functionality in a recursive function.

		Craig