etc/rc.d/dhclient

   1 #!/bin/sh
   2 #
   3 # $FreeBSD$
   4 #
   5
   6 # PROVIDE: dhclient
   7 # KEYWORD: nojail nostart
   8
   9 . /etc/rc.subr
  10 . /etc/network.subr
  11
  12 ifn="$2"
  13
  14 name="dhclient"
  15 desc="Dynamic Host Configuration Protocol (DHCP) client"
  16 rcvar=
  17 pidfile="/var/run/${name}.${ifn}.pid"
  18 start_precmd="dhclient_prestart"
  19 stop_precmd="dhclient_pre_check"
  20
  21 # rc_force check can only be done at the run_rc_command
  22 # time, so we're testing it in the pre* hooks.
  23 dhclient_pre_check()
  24 {
  25         if [ -z "${rc_force}" ] && ! dhcpif $ifn; then
  26                 local msg
  27                 msg="'$ifn' is not a DHCP-enabled interface"
  28                 if [ -z "${rc_quiet}" ]; then
  29                         echo "$msg"
  30                 else
  31                         debug "$msg"
  32                 fi
  33                 exit 1
  34         fi
  35 }
  36
  37 dhclient_prestart()
  38 {
  39         dhclient_pre_check
  40
  41         # Interface-specific flags (see rc.subr for $flags setting)
  42         specific=$(get_if_var $ifn dhclient_flags_IF)
  43         if [ -z "$flags" -a -n "$specific" ]; then
  44                 rc_flags=$specific
  45         fi
  46
  47         background_dhclient=$(get_if_var $ifn background_dhclient_IF $background_dhclient)
  48         if checkyesno background_dhclient; then
  49                 rc_flags="${rc_flags} -b"
  50         fi
  51
  52         rc_flags="${rc_flags} ${ifn}"
  53 }
  54
  55 load_rc_config $name
  56 load_rc_config network
  57
  58 if [ -z $ifn ] ; then
  59         # only complain if a command was specified but no interface
  60         if [ -n "$1" ] ; then
  61                 err 1 "$0: no interface specified"
  62         fi
  63 fi
  64
  65 run_rc_command "$1"