zeroconf: add from OE-Core

This is about to be removed from OE-Core, so add it here for those that
still want it.

Signed-off-by: Paul Eggleton <paul.eggleton@linux.intel.com>
Signed-off-by: Joe MacDonald <joe.macdonald@windriver.com>

meta-networking/recipes-protocols/zeroconf/zeroconf/compilefix.patch

@@ -0,0 +1,19 @@
+| zeroconf.c: In function 'main':
+| zeroconf.c:145: error: 'PATH_MAX' undeclared (first use in this function)
+
+RP - 4/9/09
+
+Upstream-Status: Pending
+
+Index: zeroconf-0.9/zeroconf.c
+===================================================================
+--- zeroconf-0.9.orig/zeroconf.c	2009-09-04 10:05:25.000000000 +0100
++++ zeroconf-0.9/zeroconf.c	2009-09-04 10:05:42.000000000 +0100
+@@ -33,6 +33,7 @@
+ #include <net/if_arp.h>
+ #include <sys/time.h>
+ #include <signal.h>
++#include <limits.h>
+ 
+ #include "delay.h"
+ 

meta-networking/recipes-protocols/zeroconf/zeroconf/debian-zeroconf

@@ -0,0 +1,51 @@
+#!/bin/sh
+
+if [ ! -x /usr/sbin/zeroconf ]; then
+    exit 0
+fi
+
+# IPv4 link-local addresses (zeroconf) are
+# only applicable on the 'inet' address family
+[ "X$ADDRFAM" != "Xinet" ] && exit 0
+
+# However there are some methods where it doesn't
+# make any sense to configure an IPv4LL address
+
+# not on loopback
+[ "X$METHOD" = "Xloopback" ] && exit 0
+
+# not on ppp or wvdial either
+[ "X$METHOD" = "Xppp" ] && exit 0
+[ "X$METHOD" = "Xwvdial" ] && exit 0
+
+# The administrator may have blacklisted interfaces
+# or only want zeroconf in a fallback situation
+[ -f /etc/default/zeroconf ] &&
+    . /etc/default/zeroconf
+
+[ -n "$DISABLE" ] && exit 0
+
+for BLACK in $IFBLACKLIST; do
+    case $IFACE in
+	$BLACK)
+	exit 0
+	;;
+    esac
+done
+
+# should we only allocate an address if we do not already have one?
+if [ -n "$FALLBACK" ]; then
+    /bin/ip addr show $IFACE scope global | grep -q "inet"
+    IP=$?
+    if [ $IP -eq 0 ]; then
+        /bin/ip route add 169.254.0.0/16 dev $IFACE
+        exit 0
+    fi
+fi
+
+# otherwise, run if we aren't already going
+if [ ! -r /var/run/zeroconf.$IFACE.pid ]; then
+	/usr/sbin/zeroconf -i $IFACE
+fi
+
+exit 0

meta-networking/recipes-protocols/zeroconf/zeroconf/zeroconf-default

@@ -0,0 +1,17 @@
+# Default for zeroconf
+
+# disable zeroconf
+# If you want to disable zeroconf completely, uncomment the following line
+# this may be useful if you are debugging zeroconf or starting it manually
+#DISABLE=yes
+
+# black-listed interfaces
+# Interfaces which you never wish to have zeroconf run on should
+# be listed here. e.g. "eth2 wlan1" in a space seperated string
+IFBLACKLIST=""
+
+# fallback only
+# If you would only like a link-local address if you were unable to
+# obtain an address via DHCP then uncomment the following line
+#FALLBACK=yes
+