1 #! /bin/sh

     2 ### BEGIN INIT INFO

     3 # Provides:          ha-hostname

     4 # Required-Start:

     5 # Required-Stop:

     6 # Should-Start:      hostname

     7 # Default-Start:     S

     8 # Default-Stop:

     9 # Short-Description: Set hostname based on /etc/hostname

    10 # Description:       Read the machines hostname from /etc/hostname, and

    11 #                    update the kernel value with this value.  If

    12 #                    /etc/hostname is empty, the current kernel value

    13 #                    for hostname is used.  If the kernel value is

    14 #                    empty, the value 'localhost' is used.

    15 ### END INIT INFO

    16 

    17 PATH=/sbin:/bin:/usr/sbin:/usr/bin

    18 

    19 . /lib/init/vars.sh

    20 . /lib/lsb/init-functions

    21 

    22 do_start () {

    23 

    24 	# .hs

    25 	eval `grep -o '[[:blank:]]hostname=[[:graph:]]\+' /proc/cmdline | tail -1`

    26 

    27 	if test "$hostname"; then

    28 		HOSTNAME="$hostname"

    29 	else

    30 		[ -f /etc/hostname ] && HOSTNAME="$(cat /etc/hostname)"

    31 	fi

    32 

    33 	# Keep current name if /etc/hostname is missing.

    34 	[ -z "$HOSTNAME" ] && HOSTNAME="$(hostname)"

    35 

    36 	# And set it to 'localhost' if no setting was found

    37 	[ -z "$HOSTNAME" ] && HOSTNAME=localhost

    38 

    39 	[ "$VERBOSE" != no ] && log_action_begin_msg "Setting hostname to '$HOSTNAME'"

    40 	hostname "$HOSTNAME"

    41 	ES=$?

    42 	[ "$VERBOSE" != no ] && log_action_end_msg $ES

    43 	exit $ES

    44 }

    45 

    46 case "$1" in

    47   start|"")

    48 	do_start

    49 	;;

    50   restart|reload|force-reload)

    51 	echo "Error: argument '$1' not supported" >&2

    52 	exit 3

    53 	;;

    54   stop)

    55 	# No-op

    56 	;;

    57   *)

    58 	echo "Usage: hostname.sh [start|stop]" >&2

    59 	exit 3

    60 	;;

    61 esac