From 4cb523d4626f923f6b499ba99a8cb51f7c37f74b Mon Sep 17 00:00:00 2001
From: Stefan Schantl <stefan.schantl@ipfire.org>
Date: Tue, 3 Jun 2014 22:33:18 +0200
Subject: [PATCH] general-functions.pl: Add function to get the used interface
 on red.

---
 config/cfgroot/general-functions.pl | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/config/cfgroot/general-functions.pl b/config/cfgroot/general-functions.pl
index 1ef014a66c..6994f333d5 100644
--- a/config/cfgroot/general-functions.pl
+++ b/config/cfgroot/general-functions.pl
@@ -1187,4 +1187,16 @@ sub firewall_reload() {
 	system("/usr/local/bin/firewallctrl");
 }
 
+# Function which will return the used interface for the red network zone (red0, ppp0, etc).
+sub get_red_interface() {
+
+	open(IFACE, "${General::swroot}/red/iface") or die "Could not open /var/ipfire/red/iface";
+
+	my $interface = <IFACE>;
+	close(IFACE);
+	chomp $interface;
+
+	return $interface;
+}
+
 1;
-- 
2.39.2