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authorTobias Brunner <tobias@strongswan.org>2014-05-30 11:08:35 +0200
committerTobias Brunner <tobias@strongswan.org>2014-07-22 10:41:48 +0200
commit140ce41a392353174657d1bdaada744fe99c30f5 (patch)
treeac9d8d0c6d0be580b301c281e64e00c3378239fd /src
parent9d994ba5eaa0f92ecaa6ff95d0b133307312fc8f (diff)
downloadstrongswan-140ce41a392353174657d1bdaada744fe99c30f5.tar.bz2
strongswan-140ce41a392353174657d1bdaada744fe99c30f5.tar.xz
android: Add utility method to convert a byte array to a hex string
Diffstat (limited to 'src')
-rw-r--r--src/frontends/android/src/org/strongswan/android/utils/Utils.java40
1 files changed, 40 insertions, 0 deletions
diff --git a/src/frontends/android/src/org/strongswan/android/utils/Utils.java b/src/frontends/android/src/org/strongswan/android/utils/Utils.java
new file mode 100644
index 000000000..b5c447f31
--- /dev/null
+++ b/src/frontends/android/src/org/strongswan/android/utils/Utils.java
@@ -0,0 +1,40 @@
+/*
+ * Copyright (C) 2014 Tobias Brunner
+ * Hochschule fuer Technik Rapperswil
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * for more details.
+ */
+
+package org.strongswan.android.utils;
+
+
+public class Utils
+{
+ static final char[] HEXDIGITS = "0123456789abcdef".toCharArray();
+
+ /**
+ * Converts the given byte array to a hexadecimal string encoding.
+ *
+ * @param bytes byte array to convert
+ * @return hex string
+ */
+ public static String bytesToHex(byte[] bytes)
+ {
+ char[] hex = new char[bytes.length * 2];
+ for (int i = 0; i < bytes.length; i++)
+ {
+ int value = bytes[i];
+ hex[i*2] = HEXDIGITS[(value & 0xf0) >> 4];
+ hex[i*2+1] = HEXDIGITS[ value & 0x0f];
+ }
+ return new String(hex);
+ }
+}