This worked on Domain/OS because the equivalent of namei() was in user
space on that system (and thus, it had access to the environment).

The kernel knows nothing of environment variables except that they're
a secondary set of parameters passed to a program across exec().

To get it to work, you would need to add a new system call invoked out
of setenv() & putenv() (to track environment changes), fix exec to
keep a copy of the environment in system space (most likely in wired
memory... blargh), and hunt down and fix all the code which
manipulates environ directly.

					- Bill






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