1 #! /bin/sh

     2 ### BEGIN INIT INFO

     3 # Provides:          hostname

     4 # Required-Start:

     5 # Required-Stop:

     6 # Default-Start:     S

     7 # Default-Stop:

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

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

    10 #                    update the kernel value with this value.  If

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

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

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

    14 ### END INIT INFO

    15 

    16 PATH=/sbin:/bin

    17 

    18 . /lib/init/vars.sh

    19 . /lib/lsb/init-functions

    20 

    21 do_start () {

    22 

    23 	# .hs

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

    25 

    26 	if test "$hostname"; then

    27 		HOSTNAME="$hostname"

    28 	else

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

    30 	fi

    31 

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

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

    34 

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

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

    37 

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

    39 	hostname "$HOSTNAME"

    40 	ES=$?

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

    42 	exit $ES

    43 }

    44 

    45 case "$1" in

    46   start|"")

    47 	do_start

    48 	;;

    49   restart|reload|force-reload)

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

    51 	exit 3

    52 	;;

    53   stop)

    54 	# No-op

    55 	;;

    56   *)

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

    58 	exit 3

    59 	;;

    60 esac