Re: sh(1) exec redirection

> After digging for hours why something like
> 	FOO_PASS_FD=3 exec /usr/pkg/bin/foo 3</path/to/pass
> worked on -6, but not on -8, I found out that [...]

I ran into something similar some time ago on, apparently, 8.0.  I
found - I forget where - a workaround.  To quote from the script:

# Misfeature in 8.0's sh(1): "exec N<thing" descriptors are not passed
#  to commands(!!).  Fortunately it provides a workaround: N>&N / N<&N.
exec 3</dev/rsd0d 3<&3

This may work for your use case too; I didn't try exec with a command.

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