dhcprelya.sh

#!/bin/sh
#
# PROVIDE: dhcprelya
# REQUIRE: DAEMON
#
# Add the following line to /etc/rc.conf to enable dhcrelay:
#
# dhcprelya_enable="YES"
#
# dhcprelya_config="/path/to/config.file"
#  or
# dhcprelya_servers="<your_dhcp_server>..."
# dhcprelya_ifaces="<if1>..."
#

# override these variables in /etc/rc.conf
dhcprelya_enable=${dhcprelya_enable:-"NO"}
dhcprelya_config=${dhcprelya_config:-}
dhcprelya_servers=${dhcprelya_servers:-}		# dhcprelya server(s)
dhcprelya_ifaces=${dhcprelya_ifaces:-}		# ethernet interface(s)

dhcprelya_precmd ()
{
    if [ -z "${dhcprelya_config}" ]; then
        if [ -z "${dhcprelya_ifaces}" -o -z "${dhcprelya_servers}" ]; then
	    echo "Either dhcprelya_config or both dhcprelya_ifaces and dhcprelya_servers must be set in /etc/rc.conf"
	    exit 1
        fi

        ifaces=
        for iface in ${dhcprelya_ifaces}; do
	    ifaces="${ifaces} -i ${iface}"
        done

        rc_flags="${rc_flags} ${ifaces} ${dhcprelya_servers}"
    else
        rc_flags="${rc_flags} -f ${dhcprelya_config}"
# XXX	required_files="${dhcprelya_config}"
    fi
}

dhcprelya_postcmd() {
	rm -f ${pidfile}
}

. /etc/rc.subr

name=dhcprelya
rcvar=$(set_rcvar)
pidfile=/var/run/${name}.pid
command=/usr/local/sbin/${name}

start_precmd=${name}_precmd
stop_postcmd=${name}_postcmd

load_rc_config ${name}
run_rc_command "$1"