libexec/rc/rc.d/hostid_save

   1 #!/bin/sh
   2 #
   3 # $FreeBSD$
   4 #
   5
   6 # PROVIDE: hostid_save
   7 # REQUIRE: hostid root
   8 # KEYWORD: nojail
   9
  10 . /etc/rc.subr
  11
  12 name="hostid_save"
  13 desc="Save unique host ID to disk"
  14 start_cmd="hostid_save"
  15 stop_cmd=":"
  16 rcvar="hostid_enable"
  17
  18 hostid_machine_id()
  19 {
  20         local IFS
  21
  22         IFS=-
  23         set -- ${current_hostid}
  24         IFS=
  25         current_machine_id=$*
  26 }
  27
  28 hostid_save()
  29 {
  30         current_hostid=`$SYSCTL_N kern.hostuuid`
  31
  32         read saved_hostid 2>/dev/null < ${hostid_file}
  33         if [ "${saved_hostid}" != "${current_hostid}" ]; then
  34                 echo "${current_hostid}" > ${hostid_file} ||
  35                         warn "could not store hostuuid in ${hostid_file}."
  36         fi
  37
  38         hostid_machine_id
  39
  40         read saved_machine_id 2>/dev/null < ${machine_id_file}
  41         if [ "${saved_machine_id}" != "${current_machine_id}" ]; then
  42                 echo "${current_machine_id}" > ${machine_id_file} ||
  43                         warn "could not store hostuuid in ${machine_id_file}."
  44         fi
  45 }
  46
  47 load_rc_config $name
  48 run_rc_command "$1"