[package] allow a script to get the ip address, patch from Tomasz Fornal

git-svn-id: svn://svn.openwrt.org/openwrt/packages@20810 3c298f89-4303-0410-b956-a3cf2f4a3e73

net/ddns-scripts/Makefile

@@ -2,7 +2,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=ddns-scripts
 PKG_VERSION:=1.0.0
-PKG_RELEASE:=6
+PKG_RELEASE:=7
 
 PKG_BUILD_DIR := $(BUILD_DIR)/$(PKG_NAME)
 

net/ddns-scripts/files/etc/config/ddns

@@ -31,6 +31,9 @@
 # (e.g. "eth1") and whatever the current ip of this interface is
 # will be associated with the domain when an update is performed.
 #
+# If "ip_source" is "script" you specify a script to obtain ip address.
+# The "ip_script" option should contain path to your script.
+#
 # The last possibility is that "ip_source" is "web", which means
 # that in order to obtain our ip address we will connect to a 
 # website, and the first valid ip address listed on that page
@@ -77,6 +80,9 @@ config service "myddns"
 	#option ip_source	"interface"
 	#option ip_interface	"eth0.1"
 
+	#option ip_source	"script"
+	#option	ip_script	"path to your scrip"
+
 	#option ip_source	"web"
 	#option ip_url		"http://www.whatismyip.com/automation/n09230945.asp"
 

net/ddns-scripts/files/usr/lib/ddns/dynamic_dns_functions.sh

@@ -53,7 +53,7 @@ get_current_ip()
 {
 
 	#if ip source is not defined, assume we want to get ip from wan 
-	if [ "$ip_source" != "interface" ] && [ "$ip_source" != "web" ]
+	if [ "$ip_source" != "interface" ] && [ "$ip_source" != "web" ] && [ "$ip_source" != "script" ]
 	then
 		ip_source="network"
 		ip_network="wan"
@@ -74,6 +74,10 @@ get_current_ip()
 	if [ "$ip_source" = "network" ] || [ "$ip_source" = "interface" ]
 	then
 		current_ip=$(ifconfig $ip_interface | grep -o 'inet addr:[0-9.]*' | grep -o "$ip_regex")
+	elif [ "$ip_source" = "script" ]
+	then
+		# get ip from script
+		current_ip=$($ip_script)
 	else
 		# get ip from web
 		# we check each url in order in ip_url variable, and if no ips are found we use dyndns ip checker