etc/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_save()
  19 {
  20         current_hostid=`$SYSCTL_N kern.hostuuid`
  21
  22         if [ -r ${hostid_file} ]; then
  23                 read saved_hostid < ${hostid_file}
  24                 if [ ${saved_hostid} = ${current_hostid} ]; then
  25                         exit 0
  26                 fi
  27         fi
  28
  29         echo ${current_hostid} > ${hostid_file}
  30         if [ $? -ne 0 ]; then
  31                 warn "could not store hostuuid in ${hostid_file}."
  32         fi
  33 }
  34
  35 load_rc_config $name
  36 run_rc_command "$1"