#!/bin/sh username=$1 userhome=$2 fingerprint=$3 authline="$4 $5" case "$userhome" in *'"'*) exit ;; esac usercommand=$userhome/.ssh/AnonymousAccessCommand [ -x "$usercommand" ] || exit printf 'command="%s",no-port-forwarding %s\n' "$usercommand $fingerprint" "$authline"