uml/psusan-uml-psusan

   1 #!/bin/bash
   2 # Copyright 2021 Ian Jackson, Simon Tatham, and contributors to Hippotat
   3 # SPDX-License-Identifier: GPL-3.0-or-later
   4 # There is NO WARRANTY.
   5
   6 set -e
   7
   8 fifo=tmp/uml/q
   9 mkfifo -m600 $fifo
  10
  11 (
  12  # https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=991958
  13  : <$fifo
  14  cat
  15 )                                                               |       \
  16  bwrap --dev-bind / / --tmpfs /dev/shm                                  \
  17  linux mem=512M rootfstype=hostfs rootflags=/ rw                        \
  18        con=fd:2,fd:2 con1=fd:0,fd:1 init="${0%/*}"/psusan-uml-inside    \
  19        -- psusan-uml-tmp=$PWD/tmp/uml                           |       \
  20 (
  21  read banner
  22  : >$fifo
  23  printf '%s\n' "$banner"
  24  cat
  25 )