# Set the hostname from DHCP data if required need_hostname() { case "$(hostname)" in ""|"(none)"|localhost|localhost.localdomain) [ -n "${new_host_name}" -o -n "${new_fqdn_name}" ];; "${old_host_name}"|"${old_fqdn_name}") true;; *) false;; esac } set_hostname() { if need_hostname; then if [ -n "${new_host_name}" ]; then hostname "${new_host_name}" else hostname "${new_fqdn_name}" fi fi } case "${reason}" in BOUND|INFORM|REBIND|REBOOT|RENEW|TIMEOUT) set_hostname;; esac