From 4c17e45f6d2d82277f0783431e6e3bd86268a594 Mon Sep 17 00:00:00 2001
From: Steve Beaver <sbeaver@netgate.com>
Date: Wed, 16 Nov 2016 16:10:03 -0500
Subject: Added addrtolower() function to allow IPv6 addresses to be converted
 to lower case while preserving aliases or other text

---
 src/etc/inc/pfsense-utils.inc | 8 ++++++++
 1 file changed, 8 insertions(+)

(limited to 'src/etc/inc/pfsense-utils.inc')

diff --git a/src/etc/inc/pfsense-utils.inc b/src/etc/inc/pfsense-utils.inc
index dcf7c26..2ac9730 100644
--- a/src/etc/inc/pfsense-utils.inc
+++ b/src/etc/inc/pfsense-utils.inc
@@ -3433,4 +3433,12 @@ function restore_aliastables() {
 	return false;
 }
 
+// Convert IPv6 addresses to lower case
+function addrtolower($ip) {
+	if (!filter_var($ip, FILTER_VALIDATE_IP, FILTER_FLAG_IPV6) === false) {
+		return(strtolower($ip));
+	} else {
+		return($ip);
+	}
+}
 ?>
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