I've been looking at <sys/jail.h> and related files, and realize that the
prison structure lives in kernelspace.  Without that resource available to
end users, is there a way to find (in a userspace program) which jail a
particular task belongs to?

I wrote the JailAdmin program that a few people use, and I currently get
that information from /proc.  However, for many reasons, I'd prefer to
switch to reading the output of kvm_getprocs(), but I can't give up the old
system until I can find a way to get the same information.

Out of curiosity, is there a particular reason not to make a copy of the
prison struct available to userspace programs?
-- 
Kirk Strauser
In Googlis non est, ergo non est.

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