From 8b16439d3fedb9f9e0b785f5d1aa68718a66b9d3 Mon Sep 17 00:00:00 2001
From: David Cantrell <dcantrel@fedoraproject.org>
Date: Mon, 8 Oct 2007 17:58:17 +0000
Subject: [PATCH] - Init script fixes (#320761) - Removed linux.dbus-example
 script since we aren't using dhcdbd now - Remove dhcdbd leftovers from
 dhclient-script (#306381)

---
 dhcp.spec          |  24 +-
 dhcpd.init         |   4 +-
 dhcrelay.init      |   2 +-
 linux              | 850 +++++++++++++++++++++++----------------------
 linux.dbus-example | 223 ------------
 5 files changed, 448 insertions(+), 655 deletions(-)
 delete mode 100755 linux.dbus-example

diff --git a/dhcp.spec b/dhcp.spec
index 4ee7437..bd60f82 100644
--- a/dhcp.spec
+++ b/dhcp.spec
@@ -13,7 +13,7 @@
 Summary:  DHCP (Dynamic Host Configuration Protocol) server and relay agent
 Name:     dhcp
 Version:  3.0.6
-Release:  7%{?dist}
+Release:  8%{?dist}
 Epoch:    12
 License:  ISC
 Group:    System Environment/Daemons
@@ -27,11 +27,10 @@ Source5:  libdhcp4client.pc
 Source6:  README.ldap
 Source7:  draft-ietf-dhc-ldap-schema-01.txt
 Source8:  dhcpd-conf-to-ldap
-Source9:  linux.dbus-example
-Source10: linux
-Source11: Makefile.dist
-Source12: dhcp4client.h
-Source13: libdhcp_control.h
+Source9:  linux
+Source10: Makefile.dist
+Source11: dhcp4client.h
+Source12: libdhcp_control.h
 
 Patch0:   %{name}-3.0.5-Makefile.patch
 Patch1:   %{name}-3.0.5-warnings.patch
@@ -241,18 +240,14 @@ libdhcp4client.
 %{__install} -p -m 0644 %SOURCE7 doc
 %{__install} -p -m 0755 %SOURCE8 contrib
 
-# Copy in example dhclient script for use with D-BUS (requires extended
-# new option info patch too)
-%{__install} -p -m 0755 %SOURCE9 client/scripts
-
 # Copy in the Fedora/RHEL dhclient script
-%{__install} -p -m 0755 %SOURCE10 client/scripts
+%{__install} -p -m 0755 %SOURCE9 client/scripts
 
 # Copy in the libdhcp4client headers and Makefile.dist
 %{__mkdir} -p libdhcp4client
+%{__install} -p -m 0644 %SOURCE10 libdhcp4client
 %{__install} -p -m 0644 %SOURCE11 libdhcp4client
 %{__install} -p -m 0644 %SOURCE12 libdhcp4client
-%{__install} -p -m 0644 %SOURCE13 libdhcp4client
 
 # Ensure we don't pick up Perl as a dependency from the scripts and modules
 # in the contrib directory (we copy this to /usr/share/doc in the final
@@ -431,6 +426,11 @@ fi
 %{_libdir}/libdhcp4client.a
 
 %changelog
+* Mon Oct 08 2007 David Cantrell <dcantrell@redhat.com> - 12:3.0.6-8
+- Init script fixes (#320761)
+- Removed linux.dbus-example script since we aren't using dhcdbd now
+- Remove dhcdbd leftovers from dhclient-script (#306381)
+
 * Wed Sep 26 2007 David Cantrell <dcantrell@redhat.com> - 12:3.0.6-7
 - In dhcp.conf.5, explain that if no next-server statement applies to the
   requesting client, the address 0.0.0.0 is used (#184484).
diff --git a/dhcpd.init b/dhcpd.init
index 3836f36..8d50d03 100644
--- a/dhcpd.init
+++ b/dhcpd.init
@@ -36,7 +36,7 @@ pidfile=/var/run/dhcpd.pid
 # if the user specified a different config file, make sure we reference it
 findConfig() {
     for arg in $DHCPDARGS ; do
-        if [ $found = 1 ]; then
+        if [ "$found" = 1 ]; then
             [ -f "$arg" ] && echo "$arg"
             return
         fi
@@ -82,7 +82,7 @@ start() {
 
 stop() {
     pidofproc $prog >/dev/null 2>&1
-    if [ $? -eq 0 ]; then
+    if [ $? -ne 0 ]; then
         RETVAL=7
         return $RETVAL
     fi
diff --git a/dhcrelay.init b/dhcrelay.init
index dabfe5a..115684f 100644
--- a/dhcrelay.init
+++ b/dhcrelay.init
@@ -61,7 +61,7 @@ start() {
 
 stop() {
     pidofproc $prog >/dev/null 2>&1
-    if [ $? -eq 0 ]; then
+    if [ $? -ne 0 ]; then
         RETVAL=7
         return $RETVAL
     fi
diff --git a/linux b/linux
index 7d54e5c..1d5545f 100755
--- a/linux
+++ b/linux
@@ -3,6 +3,8 @@
 # Updated for Linux 2.[12] by Brian J. Murrell, January 1999.
 # No guarantees about this. I'm a novice at the details of Linux
 # networking.
+#
+# Modified by David Cantrell <dcantrell@redhat.com> for Fedora and RHEL
 
 # Notes:
 
@@ -19,76 +21,70 @@
 # address if it is not supplied. This might be much more easily done
 # by the dhclient C code, and passed on.
 
-if [ -n "${dhc_dbus}" ]; then
-   /bin/dbus-send \
-       --system \
-       --dest=com.redhat.dhcp \
-       --type=method_call \
-       /com/redhat/dhcp/$interface \
-       com.redhat.dhcp.set \
-       'string:'"`env | /bin/egrep -v '^(PATH|SHLVL|_|PWD|dhc_dbus)\='`";
-       if (( ( dhc_dbus & 31 ) == 31 )); then
-	   exit 0;
-       fi;
-fi;
+PATH=/bin:/usr/bin
 
 function save_previous() {
-  if [ -e $1 ]; then
-    /bin/mv $1 $1.predhclient
-  else
-    echo ''> $1.predhclient 
-  fi
+    if [ -e $1 ]; then
+        mv $1 $1.predhclient
+    else
+        echo ''> $1.predhclient
+    fi
 }
 
 make_resolv_conf() {
-  if [ "${PEERDNS}" == "no" ]; then  
-      return 
-  fi
-
-  if [ x$reason == xRENEW ] &&
-     [ "$new_domain_name" == "$old_domain_name" ] && 
-     [ "$new_domain_name_servers" == "$old_domain_name_servers" ]; then
-      return;
-  fi
-
-  if [ -n "$new_domain_name" ] || [ -n "$new_domain_name_servers" ]; then
-    cp -fp /etc/resolv.conf /etc/resolv.conf.predhclient
-    rscf=`mktemp /tmp/XXXXXX`;
-    echo '; generated by /sbin/dhclient-script' > $rscf
-    if [ -n "$SEARCH" ]; then
- 	echo search $SEARCH >> $rscf
-    else
-	if [ -n "$new_domain_name" ]; then
- 	    echo search $new_domain_name >> $rscf
-        fi
+    if [ "${PEERDNS}" == "no" ]; then
+        return
+    fi
+
+    if [ x$reason == xRENEW ] &&
+       [ "$new_domain_name" == "$old_domain_name" ] && 
+       [ "$new_domain_name_servers" == "$old_domain_name_servers" ]; then
+        return
+    fi
+
+    if [ -n "$new_domain_name" ] || [ -n "$new_domain_name_servers" ]; then
+        cp -fp /etc/resolv.conf /etc/resolv.conf.predhclient
+        rscf=`mktemp /tmp/XXXXXX`;
+        echo '; generated by /sbin/dhclient-script' > $rscf
+
+        if [ -n "$SEARCH" ]; then
+            echo search $SEARCH >> $rscf
+        else
+            if [ -n "$new_domain_name" ]; then
+                echo search $new_domain_name >> $rscf
+            fi
+        fi
+
+        for nameserver in $new_domain_name_servers; do
+            echo nameserver $nameserver >> $rscf
+        done
+
+        change_resolv_conf $rscf
+        rm -f $rscf
     fi
-    for nameserver in $new_domain_name_servers; do
-      echo nameserver $nameserver >> $rscf
-    done
-    change_resolv_conf $rscf
-    rm -f $rscf
-  fi
 }
 
 # Must be used on exit.   Invokes the local dhcp client exit hooks, if any.
 exit_with_hooks() {
-  exit_status=$1
-  if [ -f /etc/dhclient-exit-hooks ]; then
-    . /etc/dhclient-exit-hooks
-  fi
-# probably should do something with exit status of the local script
-  exit $exit_status
+    exit_status=$1
+
+    if [ -f /etc/dhclient-exit-hooks ]; then
+        . /etc/dhclient-exit-hooks
+    fi
+
+    # probably should do something with exit status of the local script
+    exit $exit_status
 }
 
 # Invoke the local dhcp client enter hooks, if they exist.
 if [ -f /etc/dhclient-enter-hooks ]; then
-  exit_status=0
-  . /etc/dhclient-enter-hooks
-  # allow the local script to abort processing of this state
-  # local script must set exit_status variable to nonzero.
-  if [ $exit_status -ne 0 ]; then
-    exit $exit_status
-  fi
+    exit_status=0
+    . /etc/dhclient-enter-hooks
+    # allow the local script to abort processing of this state
+    # local script must set exit_status variable to nonzero.
+    if [ $exit_status -ne 0 ]; then
+        exit $exit_status
+    fi
 fi
 
 # Import Red Hat Linux configuration
@@ -111,52 +107,46 @@ fi
 
 source_config
 
-release=`uname -r`
-relmajor=`echo $release |/bin/cut -f1 -d'.'`
-relminor=`echo $release |/bin/cut -f2 -d'.'`
+release=$(uname -r)
+relmajor=$(echo $release | cut -f1 -d'.')
+relminor=$(echo $release | cut -f2 -d'.')
 
 # simple IP arithmetic functions:
-
-function quad2num()
-{
+function quad2num() {
     if [ $# -eq 4 ]; then
-       let n="$1<<24|$2<<16|$3<<8|$4"
-       echo $n;
-       return 0;
+        let n="$1<<24|$2<<16|$3<<8|$4"
+        echo $n
+        return 0
     fi
-    echo '0';
-    return 1;
+    echo '0'
+    return 1
 }
 
-function ip2num()
-{
-    IFS='.' quad2num $1;
+function ip2num() {
+    IFS='.' quad2num $1
 }
 
-function num2ip()
-{
-    let n="$1";
-    let o1='(n>>24)&0xff';
-    let o2='(n>>16)&0xff';
-    let o3='(n>>8)&0xff';
-    let o4='n & 0xff';
-    echo $o1.$o2.$o3.$o4;
+function num2ip() {
+    let n="$1"
+    let o1='(n>>24)&0xff'
+    let o2='(n>>16)&0xff'
+    let o3='(n>>8)&0xff'
+    let o4='n & 0xff'
+    echo $o1.$o2.$o3.$o4
 }
 
-function mask()
-{   
+function mask() {
     ip=$1
     m=$2
-    let ip=`IFS='.' ip2num $ip`;
-    let m=`IFS='.' ip2num $m`;
-    let n='ip&m';
-    num2ip $n;
+    let ip=$(IFS='.' ip2num $ip)
+    let m=$(IFS='.' ip2num $m)
+    let n='ip&m'
+    num2ip $n
 }
 
-function mask_bits()
-{
+function mask_bits() {
     ip=$1
-    let ip=`IFS='.' ip2num $ip`;
+    let ip=$(IFS='.' ip2num $ip)
     let bits=0
     for ((bit=1; '((ip&bit)==0) && (bits < 32)'; 'bit<<=1')) do
         let bits+=1
@@ -165,81 +155,76 @@ function mask_bits()
     echo $n_bits
 }
 
-function class_bits()
-{
-    let ip=`IFS='.' ip2num $1`;
+function class_bits() {
+    let ip=$(IFS='.' ip2num $1)
     let bits=32
-    let mask='255';
+    let mask='255'
     for ((i=0; i <= 3; i++, 'mask<<=8')); do
-	let v='ip&mask';
-	if [ "$v" -eq 0 ] ; then
-	    let bits-=8;
+        let v='ip&mask'
+        if [ "$v" -eq 0 ] ; then
+             let bits-=8
         else
-            break;
-	fi;
-    done;
-    echo $bits;
+             break
+        fi
+    done
+    echo $bits
 }
 
-function routerReachable()
-{ # Handle silly DHCP servers that give us a router not on our subnet:    
+function routerReachable() {
+    # Handle silly DHCP servers that give us a router not on our subnet:
     router=$1
-    routerSubnet=`mask $router $new_subnet_mask`
-    mySubnet=`mask $new_ip_address $new_subnet_mask`
+    routerSubnet=$(mask $router $new_subnet_mask)
+    mySubnet=$(mask $new_ip_address $new_subnet_mask)
     unreachable=0
     if [ "$routerSubnet" != "$mySubnet" ]; then
-	unreachable=1
-	if /sbin/arping -f -q -I $interface -w2 $router; then
-	    /sbin/ip route add ${router}/32 dev $interface
-	    if [ $? -eq 0 ]; then
-		unreachable=0
-	    else
-		/usr/bin/logger -p local7.notice -t "NET"  "dhclient: failed to create host route for unreachable router $router not on subnet $mySubnet";
-	    fi
-	else
-	    unreachable=1
-	    if [ -x /usr/bin/logger ]; then
-		/usr/bin/logger -p local7.notice -t "NET"  "dhclient: DHCP router $router is unreachable on DHCP subnet $mySubnet router subnet $routerSubnet";
-	    fi;
-	fi;
-    fi;
-    return $unreachable;
+        unreachable=1
+        if /sbin/arping -f -q -I $interface -w2 $router; then
+             /sbin/ip route add ${router}/32 dev $interface
+             if [ $? -eq 0 ]; then
+                 unreachable=0
+             else
+                 /usr/bin/logger -p local7.notice -t "NET"  "dhclient: failed to create host route for unreachable router $router not on subnet $mySubnet";
+             fi
+        else
+             unreachable=1
+             if [ -x /usr/bin/logger ]; then
+                 /usr/bin/logger -p local7.notice -t "NET"  "dhclient: DHCP router $router is unreachable on DHCP subnet $mySubnet router subnet $routerSubnet";
+             fi
+        fi
+    fi
+    return $unreachable
 }
 
-function add_default_gateway()
-{
+function add_default_gateway() {
     router=$1
     metric=''
-    if [ $# -gt 1 ] && [ "$2" -gt 0 ]; then 
-	metric="metric $2";
-    fi;    
+    if [ $# -gt 1 ] && [ "$2" -gt 0 ]; then
+        metric="metric $2"
+    fi
     if routerReachable $router ; then
-	/sbin/ip route replace default via $router dev $interface $metric;
-	if [ $? -ne 0 ]; then 
-	    /usr/bin/logger -p local7.notice -t "NET"  'dhclient: failed to create default route: '$router dev $interface $metric;
-	    return 1;
-	else
-	    return 0;
-	fi;
-    fi;
-    return 1;
+        /sbin/ip route replace default via $router dev $interface $metric
+        if [ $? -ne 0 ]; then
+            /usr/bin/logger -p local7.notice -t "NET"  'dhclient: failed to create default route: '$router dev $interface $metric
+            return 1
+        else
+            return 0
+        fi
+    fi
+    return 1
 }
 
-function dhconfig()
-{
-    if [ -z "${dhc_dbus}" ] || (( ( dhc_dbus & 2 ) != 2 )); then
-	if [ x$old_ip_address != x ] && [ x$alias_ip_address != x ] && \
-		[ x$alias_ip_address != x$old_ip_address ]; then
-         # Possible new alias. Remove old alias.
-	    ifconfig $interface:0- inet 0
-	fi
-
-	if [ x$old_ip_address != x ] && [ x$old_ip_address != x$new_ip_address ]; then
-        # IP address changed. Bringing down the interface will delete all routes,
-        # and clear the ARP cache.
-	    ifconfig $interface inet 0 down
-	fi
+function dhconfig() {
+    if [ x$old_ip_address != x ] && [ x$alias_ip_address != x ] && [ x$alias_ip_address != x$old_ip_address ]; then
+        # Possible new alias. Remove old alias.
+        ifconfig $interface:0- inet 0
     fi
+
+    if [ x$old_ip_address != x ] && [ x$old_ip_address != x$new_ip_address ]; then
+        # IP address changed. Bringing down the interface will delete all
+        # routes, and clear the ARP cache.
+        ifconfig $interface inet 0 down
+    fi
+
     if [ x$reason = xBOUND ] || [ x$reason = xREBOOT ] ||
        [ x$old_ip_address  != x$new_ip_address ] ||
        [ x$old_subnet_mask != x$new_subnet_mask ] ||
@@ -247,315 +232,346 @@ function dhconfig()
        [ x$old_broadcast_address != x$new_broadcast_address ] ||
        [ "x$old_routers" != "x$new_routers" ] ||
        [ x$old_interface_mtu != x$new_interface_mtu ] ; then
-	if [ -z "${dhc_dbus}" ] || (( ( dhc_dbus & 2 ) != 2 )); then
-	    ifconfig $interface inet $new_ip_address $new_subnet_arg \
-		$new_broadcast_arg
-	    if [ -n "$new_interface_mtu" ]; then
-		/sbin/ip link set $interface mtu $new_interface_mtu;
-	    fi;
-	    if [ -x /etc/dhclient-${interface}-up-hooks ]; then
-		. /etc/dhclient-${interface}-up-hooks;
-	    elif [ -x /etc/dhclient-up-hooks ]; then
-		. /etc/dhclient-up-hooks;
-	    fi;
-	fi;
-	
-	if [ -z "${dhc_dbus}" ] || (( ( dhc_dbus & 4 ) != 4 )); then
-	    prefix_bits=`mask_bits $new_subnet_mask`
-            # Add a network route to the computed network address.
-	    if [ $relmajor -lt 2 ] || \
-		( [ $relmajor -eq 2 ] && [ $relminor -eq 0 ] ); then
-		/sbin/ip route replace ${new_network_number}/${prefix_bits} dev $interface
-		if [ $added_old_broadcast_route -eq 1 ]; then
-		   /sbin/ip route del default;
-		fi;
-	    fi;
-	    if [[  ( ( -z "$GATEWAYDEV" )  || ( "$GATEWAYDEV" = "$interface" ) ) && ( ( -z "$GATEWAY" )  || ( ( -n "$DHCLIENT_IGNORE_GATEWAY" ) && ( "$DHCLIENT_IGNORE_GATEWAY" = [Yy]* ) ) ) ]]; then
-		metric=${METRIC:-''};
-		let i=${METRIC:-0};
-		default_routers=()
-		for router in $new_routers; do
-		    added_router=0
-		    for r in ${default_routers[@]}; do
-			if [ "$r" == "$router" ]; then
-			    added_router=1;
-                        fi;
-		    done
-		    if [ -z "$router" ] || [ "$added_router" -eq 1 ] || [ `IFS=. ip2num $router` -le 0 ] || [[ ( "$router" = "$new_broadcast_address" ) && ( "$new_subnet_mask" != "255.255.255.255" ) ]]; then
-			continue;
-		    fi;
-		    default_routers=(${default_routers[@]} $router)
-		    add_default_gateway $router $metric;		    
-		    let i=i+1;
-		    metric=$i; 
-		done
-	    elif [[ ( ( -z "$GATEWAYDEV" ) || ( "$GATEWAYDEV" = "$interface" ) ) && ( -n "$GATEWAY" ) ]]; then
-		routerSubnet=`mask $GATEWAY $new_subnet_mask`
-		mySubnet=`mask $new_ip_address $new_subnet_mask`
-		if [ "$routerSubnet" = "$mySubnet" ]; then
-		    /sbin/ip route replace default via $GATEWAY dev $interface 
-		fi;
-	    fi;
-            # static routes
-	    if [ "x$new_static_routes" != x ]; then
-		IFS=', 	' static_routes=($new_static_routes)
-		route_targets=()
-		for((i=0; i<${#static_routes[@]}; i+=2)); do
-		    target=${static_routes[$i]}
-		    gateway=${static_routes[$i+1]}
-		    metric=''
-		    for t in ${route_targets[@]}; do
-			if [ $t == $target ]; then
-			    if [ -z "$metric" ]; then
-				metric=1;
-			    else
-				((metric=metric+1));
-			    fi;
-			fi;
-		    done;
-		    if [ -n "$metric" ]; then
-			metric="metric $metric";
-		    fi;		    
-		    if routerReachable $gateway; then
-			/sbin/ip route replace ${target}/`class_bits $target` via ${gateway} dev $interface ${metric}
-			if [ $? -ne 0 ]; then
-			   /usr/bin/logger -p local7.notice -t 'NET' 'dhclient: failed to create static route:' ${target}/`class_bits $target` via ${gateway} dev $interface ${metric};			
-			else			    
- 			   route_targets=(${route_targets[@]} $target);
-			fi;
-		    fi;
-		done
-	    fi
-	fi
-    fi
-    if [ -z "${dhc_dbus}" ] || (( ( dhc_dbus & 2 ) != 2 )); then
-	if [ x$new_ip_address != x$alias_ip_address ] && [ x$alias_ip_address != x ];
-	    then
-	    ifconfig $interface:0- inet 0
-	    ifconfig $interface:0 inet $alias_ip_address $alias_subnet_arg
-	    /sbin/ip route replace ${alias_ip_address}/32 dev $interface:0
-	fi
-    fi
-    if [ -z "${dhc_dbus}" ] || (( ( dhc_dbus & 1 ) != 1 )); then
-	make_resolv_conf
+        ifconfig $interface inet $new_ip_address $new_subnet_arg $new_broadcast_arg
+        if [ -n "$new_interface_mtu" ]; then
+            /sbin/ip link set $interface mtu $new_interface_mtu
+        fi
 
-	if [ -n "$new_host_name" ] && need_hostname; then
-	    hostname $new_host_name
-	fi
-    fi;
-    if [ -z "${dhc_dbus}" ] || (( ( dhc_dbus & 8 ) != 8 )); then
-	if [ "${PEERNIS}" = no ]; then
-	    :
-	elif [ -n "$new_nis_domain" ]; then
-	    domainname "$new_nis_domain"
-	    save_previous /etc/yp.conf
-	    let contents=0
-	    echo '# generated by /sbin/dhclient-script' > /etc/yp.conf
-	    if [ -n "$new_nis_servers" ]; then
-		for I in $new_nis_servers; do
-		    echo "domain $new_nis_domain server $I" >> /etc/yp.conf
-		    let contents=contents+1
-		done
-	    else
-		echo "domain $new_nis_domain broadcast" >> /etc/yp.conf
-		let contents=contents+1
-	    fi
-	    level=`/sbin/runlevel`
-	    level=${level##*\ }
-	    if [ "$level" = "unknown" ]; then
-		level=1;
-	    fi
-	    if [ $contents -gt 0 ] && [[ "$level" = [0-6] ]] && /sbin/chkconfig --level=$level ypbind >/dev/null 2>&1 && [ -r /var/run/ypbind.pid ] && yppid=`cat /var/run/ypbind.pid` && [ -d /proc/${yppid} ] && [ "`if [ -x /sbin/busybox ]; then /sbin/busybox readlink /proc/${yppid}/exe; else echo /sbin/ypbind; fi`" = "/sbin/ypbind" ]; then
-	       kill -HUP $yppid;
-	    fi
-	elif [ -n "$new_nis_servers" ]; then
-	    save_previous /etc/yp.conf
-	    echo '# generated by /sbin/dhclient-script' > /etc/yp.conf
-	    let contents=0
-	    for I in $new_nis_servers; do
-		echo "ypserver $I" >> /etc/yp.conf
-		let contents=contents+1
-	    done
-	    level=`/sbin/runlevel`
-	    level=${level##*\ }
-	    if [ "$level" = "unknown" ]; then
-		level=1;
-	    fi
-	    if [ $contents -gt 0 ] && [[ "$level" = [0-6] ]] && /sbin/chkconfig --level=$level ypbind >/dev/null 2>&1 && [ -r /var/run/ypbind.pid ] && yppid=`cat /var/run/ypbind.pid` && [ -d /proc/${yppid} ] && [ "`if [ -x /sbin/busybox ]; then /sbin/busybox readlink /proc/${yppid}/exe; else echo /sbin/ypbind; fi`" = "/sbin/ypbind" ] ; then
-	       kill -HUP $yppid;
-	    fi
-	fi
+        if [ -x /etc/dhclient-${interface}-up-hooks ]; then
+            . /etc/dhclient-${interface}-up-hooks
+        elif [ -x /etc/dhclient-up-hooks ]; then
+            . /etc/dhclient-up-hooks
+        fi
+
+        prefix_bits=$(mask_bits $new_subnet_mask)
+        # Add a network route to the computed network address.
+        if [ $relmajor -lt 2 ] || ( [ $relmajor -eq 2 ] && [ $relminor -eq 0 ] ); then
+            /sbin/ip route replace ${new_network_number}/${prefix_bits} dev $interface
+            if [ $added_old_broadcast_route -eq 1 ]; then
+                /sbin/ip route del default
+            fi
+        fi
+
+        if [[ (( -z "$GATEWAYDEV" ) || ( "$GATEWAYDEV" = "$interface" )) && (( -z "$GATEWAY" ) || (( -n "$DHCLIENT_IGNORE_GATEWAY" ) && ( "$DHCLIENT_IGNORE_GATEWAY" = [Yy]* ))) ]]; then
+            metric=${METRIC:-''}
+            let i=${METRIC:-0}
+            default_routers=()
+
+            for router in $new_routers; do
+                added_router=0
+
+                for r in ${default_routers[@]}; do
+                    if [ "$r" == "$router" ]; then
+                        added_router=1
+                    fi
+                done
+
+                if [ -z "$router" ] || [ "$added_router" -eq 1 ] || [ $(IFS=. ip2num $router) -le 0 ] || [[ ( "$router" = "$new_broadcast_address" ) && ( "$new_subnet_mask" != "255.255.255.255" ) ]]; then
+                    continue
+                fi
+
+                default_routers=(${default_routers[@]} $router)
+                add_default_gateway $router $metric
+                let i=i+1
+                metric=$i
+            done
+        elif [[ (( -z "$GATEWAYDEV" ) || ( "$GATEWAYDEV" = "$interface" )) && ( -n "$GATEWAY" ) ]]; then
+            routerSubnet=$(mask $GATEWAY $new_subnet_mask)
+            mySubnet=$(mask $new_ip_address $new_subnet_mask)
+
+            if [ "$routerSubnet" = "$mySubnet" ]; then
+                /sbin/ip route replace default via $GATEWAY dev $interface
+            fi
+        fi
+
+        # static routes
+        if [ "x$new_static_routes" != x ]; then
+            IFS=', 	' static_routes=($new_static_routes)
+            route_targets=()
+
+            for((i=0; i<${#static_routes[@]}; i+=2)); do
+                target=${static_routes[$i]}
+                gateway=${static_routes[$i+1]}
+                metric=''
+
+                for t in ${route_targets[@]}; do
+                    if [ $t == $target ]; then
+                        if [ -z "$metric" ]; then
+                            metric=1
+                        else
+                            ((metric=metric+1))
+                        fi
+                    fi
+                done
+
+                if [ -n "$metric" ]; then
+                    metric="metric $metric"
+                fi
+
+                if routerReachable $gateway; then
+                    /sbin/ip route replace ${target}/$(class_bits $target) via ${gateway} dev $interface ${metric}
+
+                    if [ $? -ne 0 ]; then
+                        /usr/bin/logger -p local7.notice -t 'NET' 'dhclient: failed to create static route:' ${target}/`class_bits $target` via ${gateway} dev $interface ${metric}
+                    else
+                        route_targets=(${route_targets[@]} $target)
+                    fi
+                fi
+            done
+        fi
+    fi
+
+    if [ x$new_ip_address != x$alias_ip_address ] && [ x$alias_ip_address != x ]; then
+        ifconfig $interface:0- inet 0
+        ifconfig $interface:0 inet $alias_ip_address $alias_subnet_arg
+        /sbin/ip route replace ${alias_ip_address}/32 dev $interface:0
+    fi
+
+    make_resolv_conf
+
+    if [ -n "$new_host_name" ] && need_hostname; then
+        hostname $new_host_name
+    fi
+
+    if [ "${PEERNIS}" = no ]; then
+        :
+    elif [ -n "$new_nis_domain" ]; then
+        domainname "$new_nis_domain"
+        save_previous /etc/yp.conf
+        let contents=0
+        echo '# generated by /sbin/dhclient-script' > /etc/yp.conf
+
+        if [ -n "$new_nis_servers" ]; then
+            for I in $new_nis_servers; do
+                echo "domain $new_nis_domain server $I" >> /etc/yp.conf
+                let contents=contents+1
+            done
+        else
+            echo "domain $new_nis_domain broadcast" >> /etc/yp.conf
+            let contents=contents+1
+        fi
+
+        level=$(/sbin/runlevel)
+        level=${level##*\ }
+
+        if [ "$level" = "unknown" ]; then
+            level=1
+        fi
+
+        if [ $contents -gt 0 ] && [[ "$level" = [0-6] ]] && /sbin/chkconfig --level=$level ypbind >/dev/null 2>&1 && [ -r /var/run/ypbind.pid ] && yppid=$(cat /var/run/ypbind.pid) && [ -d /proc/${yppid} ] && [ "$(if [ -x /sbin/busybox ]; then /sbin/busybox readlink /proc/${yppid}/exe; else echo /sbin/ypbind; fi)" = "/sbin/ypbind" ]; then
+            kill -HUP $yppid
+        fi
+    elif [ -n "$new_nis_servers" ]; then
+        save_previous /etc/yp.conf
+        echo '# generated by /sbin/dhclient-script' > /etc/yp.conf
+        let contents=0
+
+        for I in $new_nis_servers; do
+            echo "ypserver $I" >> /etc/yp.conf
+            let contents=contents+1
+        done
+
+        level=$(/sbin/runlevel)
+        level=${level##*\ }
+
+        if [ "$level" = "unknown" ]; then
+            level=1
+        fi
+
+        if [ $contents -gt 0 ] && [[ "$level" = [0-6] ]] && /sbin/chkconfig --level=$level ypbind >/dev/null 2>&1 && [ -r /var/run/ypbind.pid ] && yppid=$(cat /var/run/ypbind.pid) && [ -d /proc/${yppid} ] && [ "$(if [ -x /sbin/busybox ]; then /sbin/busybox readlink /proc/${yppid}/exe; else echo /sbin/ypbind; fi)" = "/sbin/ypbind" ] ; then
+            kill -HUP $yppid
+        fi
+    fi
+
+    if [ -n "$DHCP_TIME_OFFSET_SETS_TIMEZONE" ] && [[ "$DHCP_TIME_OFFSET_SETS_TIMEZONE" = [yY1]* ]]; then
+        if [ -n "$new_time_offset" ]; then
+            # DHCP option "time-offset" is requested by default and should be
+            # handled.  The geographical zone abbreviation cannot be determined
+            # from the GMT offset, but the $ZONEINFO/Etc/GMT$offset file can be
+            # used - note: this disables DST.
+            ((z=new_time_offset/3600))
+            ((hoursWest=$(printf '%+d' $z)))
+
+            if (( $hoursWest < 0 )); then
+                # tzdata treats negative 'hours west' as positive 'gmtoff'!
+                ((hoursWest*=-1))
+            fi
+
+            tzfile=/usr/share/zoneinfo/Etc/GMT$(printf '%+d' $hoursWest)
+            if [ -e $tzfile ]; then
+                /bin/mv -f /etc/localtime /etc/localtime.predhclient
+                /bin/cp -fp $tzfile /etc/localtime
+                /bin/touch /etc/localtime
+            fi
+        fi
+    fi
+
+    if [ "${PEERNTP}" = no ]; then
+        :
+    elif [ -n "$new_ntp_servers" ] && [ -e /etc/ntp.conf ]; then
+        save_previous /etc/ntp.conf
+        /bin/egrep -v '^server .*  # added by /sbin/dhclient-script$'< /etc/ntp.conf.predhclient > /etc/ntp.conf
+
+        for s in $new_ntp_servers; do
+            echo "server $s  # added by /sbin/dhclient-script" >> /etc/ntp.conf
+        done
+
+        if [ -x /usr/bin/diff ] && /usr/bin/diff -q /etc/ntp.conf /etc/ntp.conf.predhclient >/dev/null 2>&1; then
+            :
+        else
+            /sbin/service ntpd condrestart >/dev/null 2>&1
+        fi
     fi
-    if [ -z "${dhc_dbus}" ] || (( ( dhc_dbus & 16 ) != 16 )); then
-	if [ -n "$DHCP_TIME_OFFSET_SETS_TIMEZONE" ] && [[ "$DHCP_TIME_OFFSET_SETS_TIMEZONE" = [yY1]* ]]; then
-	    if [ -n "$new_time_offset" ]; then
-	    #   DHCP option "time-offset" is requested by default and should be handled.
-	    #   The geographical zone abbreviation cannot be determined from the GMT offset,
-	    #   but the $ZONEINFO/Etc/GMT$offset file can be used - note: this disables DST.
-		((z=new_time_offset/3600));
-		((hoursWest=`printf '%+d' $z`))
-		if (( $hoursWest < 0 )); then
-		   # tzdata treats negative 'hours west' as positive 'gmtoff' !
-		   ((hoursWest*=-1));
-		fi
-		tzfile=/usr/share/zoneinfo/Etc/GMT`printf '%+d' $hoursWest`;
-		if [ -e $tzfile ]; then
-		    /bin/mv -f /etc/localtime /etc/localtime.predhclient;
-		    /bin/cp -fp $tzfile /etc/localtime;
-		    /bin/touch /etc/localtime;
-		fi;
-	    fi;
-	fi;
-	if [ "${PEERNTP}" = no ]; then
-	    :
-	elif [ -n "$new_ntp_servers" ] && [ -e /etc/ntp.conf ]; then
-	    save_previous /etc/ntp.conf
-	    /bin/egrep -v '^server .*  # added by /sbin/dhclient-script$'< /etc/ntp.conf.predhclient > /etc/ntp.conf
-	    for s in $new_ntp_servers; do
-	      echo "server $s  # added by /sbin/dhclient-script" >> /etc/ntp.conf;
-	    done
-	    if [ -x /usr/bin/diff ] && /usr/bin/diff -q /etc/ntp.conf /etc/ntp.conf.predhclient >/dev/null 2>&1; then
-		: ;
-	    else
-		/sbin/service ntpd condrestart >/dev/null 2>&1
-	    fi;
-	fi
-    fi;
 }
 
 if [ x$new_broadcast_address != x ] && [ x$new_subnet_mask != x ] && [ "$new_subnet_mask" != "255.255.255.255" ]; then
-  new_broadcast_arg="broadcast $new_broadcast_address"
+    new_broadcast_arg="broadcast $new_broadcast_address"
 fi
+
 if [ x$old_broadcast_address != x ]; then
-  old_broadcast_arg="broadcast $old_broadcast_address"
+    old_broadcast_arg="broadcast $old_broadcast_address"
 fi
+
 if [ x$new_subnet_mask != x ]; then
-  new_subnet_arg="netmask $new_subnet_mask"
+    new_subnet_arg="netmask $new_subnet_mask"
 fi
+
 if [ x$old_subnet_mask != x ]; then
-  old_subnet_arg="netmask $old_subnet_mask"
+    old_subnet_arg="netmask $old_subnet_mask"
 fi
+
 if [ x$alias_subnet_mask != x ]; then
-  alias_subnet_arg="netmask $alias_subnet_mask"
+    alias_subnet_arg="netmask $alias_subnet_mask"
 fi
 
 if [ x$reason = xMEDIUM ]; then
-  # Linux doesn't do mediums (ok, ok, media).
-  exit_with_hooks 0
+    # Linux doesn't do mediums (ok, ok, media).
+    exit_with_hooks 0
 fi
 
-added_old_broadcast_route=0;
+added_old_broadcast_route=0
 if [ x$reason = xPREINIT ]; then
-    if [ -z "${dhc_dbus}" ] || (( ( dhc_dbus & 2 ) != 2 )); then
-	if [ x$alias_ip_address != x ]; then
-    # Bring down alias interface. Its routes will disappear too.
-	    ifconfig $interface:0- inet 0
-	fi
-	if [ x$keep_old_ip = xyes ]; then
-	    ifconfig $interface up
-	elif [ $relmajor -lt 2 ] || ( [ $relmajor -eq 2 ] && [ $relminor -eq 0 ] )   then
-	    ifconfig $interface inet 0.0.0.0 netmask 0.0.0.0 \
-		broadcast 255.255.255.255 up
-    # Add route to make broadcast work. Do not omit netmask.
-	    /sbin/ip route replace default dev $interface && added_old_broadcast_route=1;
-	else
-	    ifconfig $interface 0 up
-	fi     
+    if [ x$alias_ip_address != x ]; then
+        # Bring down alias interface. Its routes will disappear too.
+        ifconfig $interface:0- inet 0
+    fi
 
-  # We need to give the kernel some time to get the interface up.
-  #	sleep 1
-  # I don't think this is necessary with modern kernels - no problems found during testing -
-  # JVD, 2005-06-17
-	# but just in case:
-	if [ -n "$DHCLIENT_DELAY" ] && [ "$DHCLIENT_DELAY" -gt 0 ] ; then
-	    sleep $DHCLIENT_DELAY;
-	fi;
-	exit_with_hooks 0
-    fi;
+    if [ x$keep_old_ip = xyes ]; then
+        ifconfig $interface up
+    elif [ $relmajor -lt 2 ] || ( [ $relmajor -eq 2 ] && [ $relminor -eq 0 ] )   then
+        ifconfig $interface inet 0.0.0.0 netmask 0.0.0.0 broadcast 255.255.255.255 up
+        # Add route to make broadcast work. Do not omit netmask.
+        /sbin/ip route replace default dev $interface && added_old_broadcast_route=1
+    else
+        ifconfig $interface 0 up
+    fi
+
+    # We need to give the kernel some time to get the interface up.
+    # sleep 1
+    # I don't think this is necessary with modern kernels - no problems found
+    # during testing - JVD, 2005-06-17
+    # but just in case:
+    if [ -n "$DHCLIENT_DELAY" ] && [ "$DHCLIENT_DELAY" -gt 0 ] ; then
+        sleep $DHCLIENT_DELAY
+    fi
+
+    exit_with_hooks 0
 fi
 
 if [ x$reason = xARPCHECK ] || [ x$reason = xARPSEND ]; then
     if [ -z "$new_ip_address" ] || [ -z "$interface" ] ||  /sbin/arping -q -f -c 2 -w 3 -D -I ${interface} ${new_ip_address}; then
-	exit_with_hooks 0
+        exit_with_hooks 0
     else
-	exit_with_hooks 1
-    fi;
+        exit_with_hooks 1
+    fi
 fi
-  
+
 if [ x$reason = xBOUND ] || [ x$reason = xRENEW ] || \
-   [ x$reason = xREBIND ] || [ x$reason = xREBOOT ]; then    
-    dhconfig ;
+   [ x$reason = xREBIND ] || [ x$reason = xREBOOT ]; then
+    dhconfig
     exit_with_hooks 0
 fi
 
 if [ x$reason = xEXPIRE ] || [ x$reason = xFAIL ] || [ x$reason = xRELEASE ] \
    || [ x$reason = xSTOP ]; then
-  if [ -f /etc/resolv.conf.predhclient ]; then
-     change_resolv_conf /etc/resolv.conf.predhclient
-     rm -f /etc/resolv.conf.predhclient
-  fi
-  if [ -n "$DHCP_TIME_OFFSET_SETS_TIMEZONE" ] && [[ "$DHCP_TIME_OFFSET_SETS_TIMEZONE" = [yY1]* ]]; then
-      if [ -e /etc/localtime.predhclient ]; then
-	  /bin/rm -f /etc/localtime
-	  /bin/mv -f /etc/localtime.predhclient /etc/localtime;
-	  /bin/touch /etc/localtime;
-      fi;
-  fi;
-  if [ -f /etc/ntp.conf.predhclient ]; then
-     /bin/rm -f /etc/ntp.conf
-     /bin/mv -f /etc/ntp.conf.predhclient /etc/ntp.conf
-     service ntpd condrestart >/dev/null 2>&1 
-  fi
-  if [ -f /etc/yp.conf.predhclient ]; then
-     /bin/rm -f /etc/yp.conf
-     /bin/mv -f /etc/yp.conf.predhclient /etc/yp.conf
-     level=`/sbin/runlevel`
-     level=${level##*\ }
-     if [ "$level" = "unknown" ]; then
-	 level=1;
-     fi
-     if [[ "$level" = [0-6] ]] && /sbin/chkconfig --level=$level ypbind >/dev/null 2>&1 && [ -r /var/run/ypbind.pid ] && yppid=`cat /var/run/ypbind.pid` && [ -d /proc/${yppid} ] && [ "`if [ -x /sbin/busybox ]; then /sbin/busybox readlink /proc/${yppid}/exe; else echo /sbin/ypbind; fi`" = "/sbin/ypbind" ] ; then
-	 kill -HUP $yppid;
-     fi
-  fi 
-  if [ -x /etc/dhclient-${interface}-down-hooks ]; then
-      . /etc/dhclient-${interface}-down-hooks;
-  elif [ -x /etc/dhclient-down-hooks ]; then
-      . /etc/dhclient-down-hooks;
-  fi;
-  if [ x$alias_ip_address != x ]; then
-    # Turn off alias interface.
-    ifconfig $interface:0- inet 0
-  fi
-  if [ x$old_ip_address != x ]; then
-    # Shut down interface, which will delete routes and clear arp cache.
-    ifconfig $interface inet 0 down
-  fi
-  if [ x$alias_ip_address != x ]; then
-    ifconfig $interface:0 inet $alias_ip_address $alias_subnet_arg
-    /sbin/ip route replace ${alias_ip_address}/32 $interface:0
-  fi
-  exit_with_hooks 0
+    if [ -f /etc/resolv.conf.predhclient ]; then
+        change_resolv_conf /etc/resolv.conf.predhclient
+        rm -f /etc/resolv.conf.predhclient
+    fi
+
+    if [ -n "$DHCP_TIME_OFFSET_SETS_TIMEZONE" ] && [[ "$DHCP_TIME_OFFSET_SETS_TIMEZONE" = [yY1]* ]]; then
+        if [ -e /etc/localtime.predhclient ]; then
+            /bin/rm -f /etc/localtime
+            /bin/mv -f /etc/localtime.predhclient /etc/localtime
+            /bin/touch /etc/localtime
+        fi
+    fi
+
+    if [ -f /etc/ntp.conf.predhclient ]; then
+        /bin/rm -f /etc/ntp.conf
+        /bin/mv -f /etc/ntp.conf.predhclient /etc/ntp.conf
+        service ntpd condrestart >/dev/null 2>&1
+    fi
+
+    if [ -f /etc/yp.conf.predhclient ]; then
+        /bin/rm -f /etc/yp.conf
+        /bin/mv -f /etc/yp.conf.predhclient /etc/yp.conf
+        level=$(/sbin/runlevel)
+        level=${level##*\ }
+
+       if [ "$level" = "unknown" ]; then
+           level=1
+       fi
+
+       if [[ "$level" = [0-6] ]] && /sbin/chkconfig --level=$level ypbind >/dev/null 2>&1 && [ -r /var/run/ypbind.pid ] && yppid=$(cat /var/run/ypbind.pid) && [ -d /proc/${yppid} ] && [ "$(if [ -x /sbin/busybox ]; then /sbin/busybox readlink /proc/${yppid}/exe; else echo /sbin/ypbind; fi)" = "/sbin/ypbind" ] ; then
+           kill -HUP $yppid
+       fi
+    fi
+
+    if [ -x /etc/dhclient-${interface}-down-hooks ]; then
+        . /etc/dhclient-${interface}-down-hooks
+    elif [ -x /etc/dhclient-down-hooks ]; then
+        . /etc/dhclient-down-hooks
+    fi
+
+    if [ x$alias_ip_address != x ]; then
+        # Turn off alias interface.
+        ifconfig $interface:0- inet 0
+    fi
+
+    if [ x$old_ip_address != x ]; then
+        # Shut down interface, which will delete routes and clear arp cache.
+        ifconfig $interface inet 0 down
+    fi
+
+    if [ x$alias_ip_address != x ]; then
+        ifconfig $interface:0 inet $alias_ip_address $alias_subnet_arg
+        /sbin/ip route replace ${alias_ip_address}/32 $interface:0
+    fi
+
+    exit_with_hooks 0
 fi
 
 if [ x$reason = xTIMEOUT ] && [ "x$new_routers" != 'x' ]; then
-    if [ -z "${dhc_dbus}" ] || (( ( dhc_dbus & 2 ) != 2 )); then
-	if [ x$alias_ip_address != x ]; then
-	    ifconfig $interface:0- inet 0
-	fi
-	ifconfig $interface inet $new_ip_address $new_subnet_arg \
-					$new_broadcast_arg
-    fi;
-    set $new_routers
-    if ping -q -c 1 -w 10 -I $interface $1; then
-	dhconfig ;
-	exit_with_hooks 0
+    if [ x$alias_ip_address != x ]; then
+        ifconfig $interface:0- inet 0
     fi
+
+    ifconfig $interface inet $new_ip_address $new_subnet_arg $new_broadcast_arg
+    set $new_routers
+
+    if ping -q -c 1 -w 10 -I $interface $1; then
+        dhconfig
+        exit_with_hooks 0
+    fi
+
     if [ -z "${dhc_dbus}" ] || (( ( dhc_dbus & 2 ) != 2 )); then
-	ifconfig $interface inet 0 down
-    fi;
+        ifconfig $interface inet 0 down
+    fi
+
     exit_with_hooks 1
 elif [ x$reason = xTIMEOUT ]; then
-  exit_with_hooks 1
+    exit_with_hooks 1
 fi
+
 exit_with_hooks 0
diff --git a/linux.dbus-example b/linux.dbus-example
deleted file mode 100755
index 1ee9e0d..0000000
--- a/linux.dbus-example
+++ /dev/null
@@ -1,223 +0,0 @@
-#!/bin/bash
-# dhclient-script for Linux. Dan Halbert, March, 1997.
-# Updated for Linux 2.[12] by Brian J. Murrell, January 1999.
-# No guarantees about this. I'm a novice at the details of Linux
-# networking.
-
-# Notes:
-
-# 0. This script is based on the netbsd script supplied with dhcp-970306.
-
-# 1. ifconfig down apparently deletes all relevant routes and flushes
-# the arp cache, so this doesn't need to be done explicitly.
-
-# 2. The alias address handling here has not been tested AT ALL.
-# I'm just going by the doc of modern Linux ip aliasing, which uses
-# notations like eth0:0, eth0:1, for each alias.
-
-# 3. I have to calculate the network address, and calculate the broadcast
-# address if it is not supplied. This might be much more easily done
-# by the dhclient C code, and passed on.
-
-# 4. TIMEOUT not tested. ping has a flag I don't know, and I'm suspicious
-# of the $1 in its args.
-
-if [ -n "${dhc_dbus}" ]; then
-  /bin/dbus-send \
-    --system --dest=com.redhat.dhcp --type=method_call \
-    /com/redhat/dhcp/$interface com.redhat.dhcp.set \
-    'string:'"`env | /bin/egrep -v '^(PATH|SHLVL|_|PWD|dhc_dbus)\='`";
-    if (( ( dhc_dbus & 31 ) == 31 )); then
-    exit 0;
-    fi;
-fi;
-
-make_resolv_conf() {
-  if [ "x$new_domain_name" != x ] && [ x"$new_domain_name_servers" != x ]; then
-    echo search $new_domain_name >/etc/resolv.conf
-    chmod 644 /etc/resolv.conf
-    for nameserver in $new_domain_name_servers; do
-      echo nameserver $nameserver >>/etc/resolv.conf
-    done
-  fi
-}
-
-# Must be used on exit.   Invokes the local dhcp client exit hooks, if any.
-exit_with_hooks() {
-  exit_status=$1
-  if [ -f /etc/dhclient-exit-hooks ]; then
-    . /etc/dhclient-exit-hooks
-  fi
-# probably should do something with exit status of the local script
-  exit $exit_status
-}
-
-# Invoke the local dhcp client enter hooks, if they exist.
-if [ -f /etc/dhclient-enter-hooks ]; then
-  exit_status=0
-  . /etc/dhclient-enter-hooks
-  # allow the local script to abort processing of this state
-  # local script must set exit_status variable to nonzero.
-  if [ $exit_status -ne 0 ]; then
-    exit $exit_status
-  fi
-fi
-
-release=`uname -r`
-release=`expr $release : '\(.*\)\..*'`
-relminor=`echo $release |sed -e 's/[0-9]*\.\([0-9][0-9]*\)\(\..*\)*$/\1/'`
-relmajor=`echo $release |sed -e 's/\([0-9][0-9]*\)\..*$/\1/'`
-
-if [ x$new_broadcast_address != x ]; then
-  new_broadcast_arg="broadcast $new_broadcast_address"
-fi
-if [ x$old_broadcast_address != x ]; then
-  old_broadcast_arg="broadcast $old_broadcast_address"
-fi
-if [ x$new_subnet_mask != x ]; then
-  new_subnet_arg="netmask $new_subnet_mask"
-fi
-if [ x$old_subnet_mask != x ]; then
-  old_subnet_arg="netmask $old_subnet_mask"
-fi
-if [ x$alias_subnet_mask != x ]; then
-  alias_subnet_arg="netmask $alias_subnet_mask"
-fi
-
-if [ x$reason = xMEDIUM ]; then
-  # Linux doesn't do mediums (ok, ok, media).
-  exit_with_hooks 0
-fi
-
-if [ x$reason = xPREINIT ]; then
-  if [ x$alias_ip_address != x ]; then
-    # Bring down alias interface. Its routes will disappear too.
-    ifconfig $interface:0- inet 0
-  fi
-  if [ $relmajor -lt 2 ] || ( [ $relmajor -eq 2 ] && [ $relminor -eq 0 ] )
-   then
-    ifconfig $interface inet 0.0.0.0 netmask 0.0.0.0 \
-		broadcast 255.255.255.255 up
-    # Add route to make broadcast work. Do not omit netmask.
-    route add default dev $interface netmask 0.0.0.0
-  else
-    ifconfig $interface 0 up
-  fi
-
-  # We need to give the kernel some time to get the interface up.
-  sleep 1
-
-  exit_with_hooks 0
-fi
-
-if [ x$reason = xARPCHECK ] || [ x$reason = xARPSEND ]; then
-  exit_with_hooks 0
-fi
-  
-if [ x$reason = xBOUND ] || [ x$reason = xRENEW ] || \
-   [ x$reason = xREBIND ] || [ x$reason = xREBOOT ]; then
-  current_hostname=`hostname`
-  if [ x$current_hostname = x ] || \
-     [ x$current_hostname = x$old_host_name ]; then
-    if [ x$current_hostname = x ] || \
-       [ x$new_host_name != x$old_host_name ]; then
-      hostname $new_host_name
-    fi
-  fi
-
-  if [ -z "${dhc_dbus}" ] || (( ( dhc_dbus & 2 ) != 2 )); then
-  if [ x$old_ip_address != x ] && [ x$alias_ip_address != x ] && \
-		[ x$alias_ip_address != x$old_ip_address ]; then
-    # Possible new alias. Remove old alias.
-    ifconfig $interface:0- inet 0
-  fi
-  if [ x$old_ip_address != x ] && [ x$old_ip_address != x$new_ip_address ]; then
-    # IP address changed. Bringing down the interface will delete all routes,
-    # and clear the ARP cache.
-    ifconfig $interface inet 0 down
-
-  fi
-  fi
-  if [ x$old_ip_address = x ] || [ x$old_ip_address != x$new_ip_address ] || \
-     [ x$reason = xBOUND ] || [ x$reason = xREBOOT ]; then
-  if [ -z "${dhc_dbus}" ] || (( ( dhc_dbus & 2 ) != 2 )); then
-    ifconfig $interface inet $new_ip_address $new_subnet_arg \
-							$new_broadcast_arg
-  fi
-  if [ -z "${dhc_dbus}" ] || (( ( dhc_dbus & 4 ) != 4 )); then
-    # Add a network route to the computed network address.
-    if [ $relmajor -lt 2 ] || \
-		( [ $relmajor -eq 2 ] && [ $relminor -eq 0 ] ); then
-      route add -net $new_network_number $new_subnet_arg dev $interface
-    fi
-    for router in $new_routers; do
-      route add default gw $router
-    done
-  fi
-  fi
-  if [ -z "${dhc_dbus}" ] || (( ( dhc_dbus & 2 ) != 2 )); then
-  if [ x$new_ip_address != x$alias_ip_address ] && [ x$alias_ip_address != x ];
-   then
-    ifconfig $interface:0- inet 0
-    ifconfig $interface:0 inet $alias_ip_address $alias_subnet_arg
-    route add -host $alias_ip_address $interface:0
-  fi
-  fi
-  if [ -z "${dhc_dbus}" ] || (( ( dhc_dbus & 1 ) != 1 )); then
-  make_resolv_conf
-  fi
-  exit_with_hooks 0
-fi
-
-if [ -z "${dhc_dbus}" ] || (( ( dhc_dbus & 2 ) != 2 )); then
-if [ x$reason = xEXPIRE ] || [ x$reason = xFAIL ] || [ x$reason = xRELEASE ] \
-   || [ x$reason = xSTOP ]; then
-  if [ x$alias_ip_address != x ]; then
-    # Turn off alias interface.
-    ifconfig $interface:0- inet 0
-  fi
-  if [ x$old_ip_address != x ]; then
-    # Shut down interface, which will delete routes and clear arp cache.
-    ifconfig $interface inet 0 down
-  fi
-  if [ x$alias_ip_address != x ]; then
-    ifconfig $interface:0 inet $alias_ip_address $alias_subnet_arg
-    route add -host $alias_ip_address $interface:0
-  fi
-  exit_with_hooks 0
-fi
-fi
-
-if [ x$reason = xTIMEOUT ]; then
-  if [ -z "${dhc_dbus}" ] || (( ( dhc_dbus & 2 ) != 2 )); then
-  if [ x$alias_ip_address != x ]; then
-    ifconfig $interface:0- inet 0
-  fi
-  ifconfig $interface inet $new_ip_address $new_subnet_arg \
-					$new_broadcast_arg
-  fi
-  set $new_routers
-  ############## what is -w in ping?
-  if ping -q -c 1 $1; then
-    if [ x$new_ip_address != x$alias_ip_address ] && \
-			[ x$alias_ip_address != x ]; then
-      ifconfig $interface:0 inet $alias_ip_address $alias_subnet_arg
-      route add -host $alias_ip_address dev $interface:0
-    fi
-    if [ $relmajor -lt 2 ] || \
-		( [ $relmajor -eq 2 ] && [ $relminor -eq 0 ] ); then
-      route add -net $new_network_number
-    fi
-    for router in $new_routers; do
-      route add default gw $router
-    done
-    make_resolv_conf
-    exit_with_hooks 0
-  fi
-  if [ -z "${dhc_dbus}" ] || (( ( dhc_dbus & 2 ) != 2 )); then
-  ifconfig $interface inet 0 down
-  fi
-  exit_with_hooks 1
-fi
-
-exit_with_hooks 0