Also because you can't do a proper job from user-mode. The only tool available
is readlink, but readlink and followlink are different operations in the VFS
interface. In other words, its possible for a filesystem to put one thing in a
symlink as far as readlink goes, and do another when you try to follow it.
/proc has many examples of this, and it is not unique.
You may be able to do it if you add an appropriate syscall.
J
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