From 18b433722e3468cbb57a6c99d64e76c97a1eac20 Mon Sep 17 00:00:00 2001
From: Michael Tremer <michael.tremer@ipfire.org>
Date: Fri, 18 Jun 2010 00:19:16 +0200
Subject: [PATCH] network: New function mac_format.

---
 functions.util | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/functions.util b/functions.util
index 3023154a..c0721900 100644
--- a/functions.util
+++ b/functions.util
@@ -155,6 +155,25 @@ function mac_generate() {
 	echo ${output}
 }
 
+function mac_format() {
+	local mac=${1}
+
+	local output
+
+	if [ "${#mac}" = "12" ]; then
+		# Add colons (:) to mac address
+		output=${mac:0:2}
+		local i
+		for i in 2 4 6 8 10; do
+			output="${output}:${mac:${i}:2}"
+		done
+	fi
+
+	assert mac_is_valid ${output}
+
+	echo "${output}"
+}
+
 function mac_is_valid() {
 	local mac=${1}
 
-- 
2.47.2