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 name="dhclient"
  13 rcvar=
  14 start_cmd="dhclient_start"
  15 stop_cmd="dhclient_stop"
  16
  17 dhclient_start()
  18 {
  19         # prevent unnecessary restarts
  20         # XXX: dhclient had better create a pidfile
  21         if [ -x /bin/pgrep ]; then
  22                 pids=`/bin/pgrep -f "dhclient: $ifn(\$| .*)"`
  23                 if [ -n "$pids" ]; then
  24                         sleep 1
  25                         pids=`/bin/pgrep -f "dhclient: $ifn(\$| .*)"`
  26                         if [ -n "$pids" ]; then
  27                                 exit 0
  28                         fi
  29                 elif [ -e /var/run/dhclient.pid ]; then
  30                         if [ -n "`pgrep -F /var/run/dhclient.pid`" ]; then
  31                                 exit 0
  32                         fi
  33                 fi
  34         fi
  35
  36         # Override for $ifn specific flags (see rc.subr for $flags setting)
  37         specific=`get_if_var $ifn dhclient_flags_IF`
  38         if [ -z "$flags" -a -n "$specific" ]; then
  39                 rc_flags=$specific
  40         fi
  41
  42         background_dhclient=`get_if_var $ifn background_dhclient_IF $background_dhclient`
  43         if checkyesno background_dhclient; then
  44                 rc_flags="${rc_flags} -b"
  45         fi
  46
  47         ${dhclient_program} ${rc_flags} $ifn
  48 }
  49
  50 dhclient_stop()
  51 {
  52         ifconfig $ifn down      # cause dhclient to die
  53 }
  54
  55 ifn="$2"
  56
  57 load_rc_config $name
  58 load_rc_config network
  59
  60 if ! dhcpif $ifn; then
  61         return 1
  62 fi
  63
  64 run_rc_command "$1"