1#!/bin/sh
2#
3# SPDX-License-Identifier: GPL-2.0-only
4#
5
6### BEGIN INIT INFO
7# Provides:          hostname
8# Required-Start:
9# Required-Stop:
10# Default-Start:     S
11# Default-Stop:
12# Short-Description: Set hostname based on /etc/hostname
13### END INIT INFO
14HOSTNAME=$(/bin/hostname)
15
16hostname -b -F /etc/hostname 2> /dev/null
17if [ $? -eq 0 ]; then
18	exit
19fi
20
21# Busybox hostname doesn't support -b so we need implement it on our own
22if [ -f /etc/hostname ];then
23	hostname `cat /etc/hostname`
24elif [ -z "$HOSTNAME" -o "$HOSTNAME" = "(none)" -o ! -z "`echo $HOSTNAME | sed -n '/^[0-9]*\.[0-9].*/p'`" ] ; then
25	hostname localhost
26fi
27