dhclient revision 178233 
1#!/bin/sh
2#
3# $FreeBSD: head/etc/rc.d/dhclient 178233 2008-04-15 23:03:35Z brooks $
4#
5
6# PROVIDE: dhclient
7# KEYWORD: nojail nostart
8
9. /etc/rc.subr
10. /etc/network.subr
11
12name="dhclient"
13rcvar=
14start_cmd="dhclient_start"
15stop_cmd="dhclient_stop"
16
17dhclient_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
50dhclient_stop()
51{
52	ifconfig $ifn down	# cause dhclient to die
53}
54
55ifn="$2"
56
57load_rc_config $name
58load_rc_config network
59
60if ! dhcpif $ifn; then
61	return 1
62fi
63
64run_rc_command "$1"
65