Magic symlink syntax

[Greg Bond]

In article <2371 at quacky.mips.COM> dce at mips.COM (David Elliott) writes:
>This is the modification that allows one to put a variable inside of
>a symbolic link target so that people can choose default execution
>"universes" or "modes" or "system types".

What do you mean by a variable?  How can such variables be set up so
that the kernel context can access them?  Not shell variables,
obviously (as the process doing the system call is not in general a
shell), but even "environment" variables can be changed by the process
and I can't see how namei would know where to look for them.

A question from the curious but not source-equipped mind of...
-- 
Gregory Bond,  Vertical Software, Melbourne, Australia
Internet: greg at vertical.oz.au	(or greg%vertical.oz.au at uunet.uu.net)
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I used to be a pessimist. Now I'm a realist.