From 74bd420937489d8d729c0e2c64f81219600992b1 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Zoran=20Peri=C4=8Di=C4=87?= <zpericic@netst.org>
Date: Fri, 8 Apr 2022 19:00:10 +0200
Subject: [PATCH] v0.9.0

---
 dnsupdate      | 12 +++++++++++-
 dnsupdate.spec |  2 +-
 2 files changed, 12 insertions(+), 2 deletions(-)

diff --git a/dnsupdate b/dnsupdate
index 881584a..32b5973 100755
--- a/dnsupdate
+++ b/dnsupdate
@@ -352,7 +352,7 @@ function parse_ddns_config() {
 }
 
 function get_all_ifaces() {
-	echo `ip addr show | sed -nr 's/([0-9]*: )(.*): .*/\2/p'`
+	cat /proc/net/dev | sed -nr 's/ *(.*): .*/\1/p'
 	return 0
 }
 
@@ -412,6 +412,16 @@ function update_iface() {
 		return 0
 	fi
 
+	public_ip=no
+	[[ ! $ip_address =~ ^192\.168|10\.|172\.1[6789]\.|172\.2[0-9]\.|172\.3[01]\. ]] && public_ip=yes
+
+	if [ $public_ip == "no" ]; then
+		ip_address=`dig @resolver4.opendns.com myip.opendns.com +short -4`
+		if ! [[ $ip_address =~ ^[0-9]+\.[0-9]+\.[0-9]+\.[0-9]+$ ]]; then
+			return -1;
+		fi
+	fi
+
 	parse_ddns_config "${ip_address}"
 	return 0
 }
diff --git a/dnsupdate.spec b/dnsupdate.spec
index 65909c9..ad80cab 100644
--- a/dnsupdate.spec
+++ b/dnsupdate.spec
@@ -1,6 +1,6 @@
 Summary:        Dynamic DNS for ppp and dhclient
 Name:           dnsupdate
-Version:        0.8.0
+Version:        0.9.0
 Release:        1%{?dist}
 License:        GPLv2+
 Group:          System Environment/Daemons