#!/bin/sh

DHCLIENT="/sbin/dhclient"
PIDFILE="/var/run/dhclient-${interface}.pid"

[ -e /etc/conf.d/dhclient ] && source /etc/conf.d/dhclient
[ ! -d /var/lib/dhcp ] && mkdir -p /var/lib/dhcp

DHCP_DEFOPTS="-lf /var/lib/dhcp/dhclient.${interface}.leases -df /var/lib/dhcp/dhclient6.${interface}.leases"

netif_pre_up() {
    if [ ! -f "${DHCLIENT}" ]; then
        echo "dhclient binary not found. Did you emerge net-misc/dhcp?"
        exit 1
    fi
}

netif_post_up() {
    if [ -f "${PIDFILE}" ]; then
        echo "There's a PID file for interface $interface. Aborting."
        exit 2
    fi

    $DHCLIENT $DHCLIENT_OPTS -pf $PIDFILE $DHCP_DEFOPTS $interface 
}

netif_pre_down() {
    if [ ! -f "${PIDFILE}" ]; then
        echo "There's no PID file for interface ${interface}. Aborting."
        exit 3
    fi
    start-stop-daemon --stop --exec "${DHCLIENT}" --pidfile "${PIDFILE}"
}