libwrap: restore memory-copying
libwrap: restore memory-copying

In order to peek into command-buffers etc without re-mapping them,
which can interfere with the user-space driver, we actually need to
do this.

This effectively reverts ca52e7b, and adds some spewing instead when
we try to write outside...

grate-driver/grate,grate-driver/grate,digetx/grate,digetx/grate