quick and dirty solution to bind vnc to localhost on a qemu host

gistfile1.txt

#!/bin/bash

apt-get install jq -y
ps axu | grep -oe "unix:[a-z0-9\.:\/\-]*.qmp" | while read QMP; do
  echo $QMP;
  LISTEN=$(echo -e '{"execute":"qmp_capabilities"}\n{"execute": "query-vnc"}' | socat - ${QMP} | tail -n1 | jq -r .return.host); 
  echo $LISTEN
  if [ "$LISTEN" != "127.0.0.1" ]; then
    PORT=$[$(echo -e '{"execute":"qmp_capabilities"}\n{"execute": "query-vnc"}' | socat - ${QMP} | tail -n1 | jq -r .return.service)-5900]
    echo -e '{"execute":"qmp_capabilities"}\n{"execute": "change",  "arguments": { "device": "vnc", "target": "127.0.0.1:'$PORT'" } }' | socat - ${QMP}; 
  fi
done