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--- busybox-1.00/.pc/udhcpscript.patch/examples/udhcp/simple.script 2004-10-13 00:18:05.000000000 -0700
+++ busybox-1.00/examples/udhcp/simple.script 2005-06-05 15:08:28.432605118 -0700
@@ -1,40 +1,101 @@
#!/bin/sh
+# slugos UDHCP client script
+# this must set the HW address (MAC) on the interface
+#
+. /etc/default/functions
-# udhcpc script edited by Tim Riker <Tim@Rikers.org>
-[ -z "$1" ] && echo "Error: should be called from udhcpc" && exit 1
+echodns(){
+ local dns
+ if test $# -gt 0
+ then
+ for dns in "$@"
+ do
+ echo "nameserver $dns"
+ done
+ fi
+}
+
+# Output the correct contents for resolv.conf
+mkresolv() {
+ test -n "$domain" && echo "search $domain"
+ echodns $dns
+}
+
+# checksum of a file (or stdin if -)
+md5strm() {
+ md5sum $1 2>/dev/null | sed -n 's/^\([0-9A-Za-z]*\).*$/\1/p'
+}
+
+bind() {
+ local B N metric i olddomain
+ B=
+ test -n "$broadcast" && B="broadcast $broadcast"
+ N=
+ test -n "$subnet" && N="netmask $subnet"
+ ifconfig "$interface" "$ip" $B $N up
+
+ # If given router information delete the old information and
+ # enter new stuff, routers get metrics incremented by 1
+ # between each (this is somewhat arbitrary)
+ if test -n "$router"
+ then
+ while route del default gw 0.0.0.0 dev $interface 2>/dev/null
+ do
+ :
+ done
-RESOLV_CONF="/etc/resolv.conf"
-[ -n "$broadcast" ] && BROADCAST="broadcast $broadcast"
-[ -n "$subnet" ] && NETMASK="netmask $subnet"
+ metric=0
+ for i in $router
+ do
+ route add default gw "$i" dev "$interface" metric $((metric++))
+ done
+ fi
+
+ olddomain=
+ test -r /etc/defaultdomain && olddomain="$(cat /etc/defaultdomain)"
+ if test -n "$domain" -a "$domain" != "$olddomain"
+ then
+ echo "$domain" >/etc/defaultdomain
+ # and update the kernel view too
+ echo "$domain" >/proc/sys/kernel/domainname
+ fi
+
+ # Update /etc/resolv.conf to reflect domain and dns information,
+ # this always clears resolv.conf if none is given
+ md5old="$(md5strm /etc/resolv.conf)"
+ md5new="$(mkresolv | md5strm -)"
+ test "$md5old" != "$md5new" && mkresolv >/etc/resolv.conf
+}
case "$1" in
- deconfig)
- /sbin/ifconfig $interface 0.0.0.0
- ;;
-
- renew|bound)
- /sbin/ifconfig $interface $ip $BROADCAST $NETMASK
-
- if [ -n "$router" ] ; then
- echo "deleting routers"
- while route del default gw 0.0.0.0 dev $interface ; do
- :
- done
-
- metric=0
- for i in $router ; do
- route add default gw $i dev $interface metric $((metric++))
- done
+deconfig)
+ # Bring the interface up (without inet at this point)
+ ifconfig "$interface" up;;
+
+renew|bound)
+ bind;;
+
+leasefail)
+ # Pull the values from the config data if (only only if) this
+ # is the config interface
+ if test "$interface" = "$(config iface)"
+ then
+ ip="$(config ip)"
+ if test -n "$ip"
+ then
+ router="$(config gateway)"
+ subnet="$(config netmask)"
+ broadcast="$(config broadcast)"
+ domain="$(config domain)"
+ dns="$(config dns)"
+
+ bind
fi
+ fi;;
- echo -n > $RESOLV_CONF
- [ -n "$domain" ] && echo search $domain >> $RESOLV_CONF
- for i in $dns ; do
- echo adding dns $i
- echo nameserver $i >> $RESOLV_CONF
- done
- ;;
+*) echo "udhcpc: $*: unknown command" >&2
+ exit 1;;
esac
exit 0
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