freebsd-dev/etc/rc.d/hostid_save
Xin LI 8f990792fc Verify if the saved hostid is still the same and update if
it was changed.

Sponsored by:	iXsystems, Inc.
Obtained from:	FreeNAS (trueos commit 0abb740)
2015-04-15 21:48:06 +00:00

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#!/bin/sh
#
# $FreeBSD$
#
# PROVIDE: hostid_save
# REQUIRE: root
# KEYWORD: nojail
. /etc/rc.subr
name="hostid_save"
start_cmd="hostid_save"
stop_cmd=":"
rcvar="hostid_enable"
hostid_save()
{
current_hostid=`$SYSCTL_N kern.hostuuid`
if [ -r ${hostid_file} ]; then
read saved_hostid < ${hostid_file}
if [ ${saved_hostid} = ${current_hostid} ]; then
exit 0
fi
fi
echo ${current_hostid} > ${hostid_file}
if [ $? -ne 0 ]; then
warn "could not store hostuuid in ${hostid_file}."
fi
}
load_rc_config $name
run_rc_command "$1"