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-rw-r--r--src/main/java/org/whispersystems/libaxolotl/util/ByteUtil.java248
1 files changed, 0 insertions, 248 deletions
diff --git a/src/main/java/org/whispersystems/libaxolotl/util/ByteUtil.java b/src/main/java/org/whispersystems/libaxolotl/util/ByteUtil.java
deleted file mode 100644
index c213ba0b..00000000
--- a/src/main/java/org/whispersystems/libaxolotl/util/ByteUtil.java
+++ /dev/null
@@ -1,248 +0,0 @@
-/**
- * Copyright (C) 2014 Open Whisper Systems
- *
- * 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 3 of the License, or
- * (at your option) any later version.
- *
- * 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.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-package org.whispersystems.libaxolotl.util;
-
-import java.io.ByteArrayOutputStream;
-import java.io.IOException;
-import java.text.ParseException;
-
-public class ByteUtil {
-
- public static byte[] combine(byte[]... elements) {
- try {
- ByteArrayOutputStream baos = new ByteArrayOutputStream();
-
- for (byte[] element : elements) {
- baos.write(element);
- }
-
- return baos.toByteArray();
- } catch (IOException e) {
- throw new AssertionError(e);
- }
- }
-
- public static byte[][] split(byte[] input, int firstLength, int secondLength) {
- byte[][] parts = new byte[2][];
-
- parts[0] = new byte[firstLength];
- System.arraycopy(input, 0, parts[0], 0, firstLength);
-
- parts[1] = new byte[secondLength];
- System.arraycopy(input, firstLength, parts[1], 0, secondLength);
-
- return parts;
- }
-
- public static byte[][] split(byte[] input, int firstLength, int secondLength, int thirdLength)
- throws ParseException
- {
- if (input == null || firstLength < 0 || secondLength < 0 || thirdLength < 0 ||
- input.length < firstLength + secondLength + thirdLength)
- {
- throw new ParseException("Input too small: " + (input == null ? null : Hex.toString(input)), 0);
- }
-
- byte[][] parts = new byte[3][];
-
- parts[0] = new byte[firstLength];
- System.arraycopy(input, 0, parts[0], 0, firstLength);
-
- parts[1] = new byte[secondLength];
- System.arraycopy(input, firstLength, parts[1], 0, secondLength);
-
- parts[2] = new byte[thirdLength];
- System.arraycopy(input, firstLength + secondLength, parts[2], 0, thirdLength);
-
- return parts;
- }
-
- public static byte[] trim(byte[] input, int length) {
- byte[] result = new byte[length];
- System.arraycopy(input, 0, result, 0, result.length);
-
- return result;
- }
-
- public static byte[] copyFrom(byte[] input) {
- byte[] output = new byte[input.length];
- System.arraycopy(input, 0, output, 0, output.length);
-
- return output;
- }
-
- public static byte intsToByteHighAndLow(int highValue, int lowValue) {
- return (byte)((highValue << 4 | lowValue) & 0xFF);
- }
-
- public static int highBitsToInt(byte value) {
- return (value & 0xFF) >> 4;
- }
-
- public static int lowBitsToInt(byte value) {
- return (value & 0xF);
- }
-
- public static int highBitsToMedium(int value) {
- return (value >> 12);
- }
-
- public static int lowBitsToMedium(int value) {
- return (value & 0xFFF);
- }
-
- public static byte[] shortToByteArray(int value) {
- byte[] bytes = new byte[2];
- shortToByteArray(bytes, 0, value);
- return bytes;
- }
-
- public static int shortToByteArray(byte[] bytes, int offset, int value) {
- bytes[offset+1] = (byte)value;
- bytes[offset] = (byte)(value >> 8);
- return 2;
- }
-
- public static int shortToLittleEndianByteArray(byte[] bytes, int offset, int value) {
- bytes[offset] = (byte)value;
- bytes[offset+1] = (byte)(value >> 8);
- return 2;
- }
-
- public static byte[] mediumToByteArray(int value) {
- byte[] bytes = new byte[3];
- mediumToByteArray(bytes, 0, value);
- return bytes;
- }
-
- public static int mediumToByteArray(byte[] bytes, int offset, int value) {
- bytes[offset + 2] = (byte)value;
- bytes[offset + 1] = (byte)(value >> 8);
- bytes[offset] = (byte)(value >> 16);
- return 3;
- }
-
- public static byte[] intToByteArray(int value) {
- byte[] bytes = new byte[4];
- intToByteArray(bytes, 0, value);
- return bytes;
- }
-
- public static int intToByteArray(byte[] bytes, int offset, int value) {
- bytes[offset + 3] = (byte)value;
- bytes[offset + 2] = (byte)(value >> 8);
- bytes[offset + 1] = (byte)(value >> 16);
- bytes[offset] = (byte)(value >> 24);
- return 4;
- }
-
- public static int intToLittleEndianByteArray(byte[] bytes, int offset, int value) {
- bytes[offset] = (byte)value;
- bytes[offset+1] = (byte)(value >> 8);
- bytes[offset+2] = (byte)(value >> 16);
- bytes[offset+3] = (byte)(value >> 24);
- return 4;
- }
-
- public static byte[] longToByteArray(long l) {
- byte[] bytes = new byte[8];
- longToByteArray(bytes, 0, l);
- return bytes;
- }
-
- public static int longToByteArray(byte[] bytes, int offset, long value) {
- bytes[offset + 7] = (byte)value;
- bytes[offset + 6] = (byte)(value >> 8);
- bytes[offset + 5] = (byte)(value >> 16);
- bytes[offset + 4] = (byte)(value >> 24);
- bytes[offset + 3] = (byte)(value >> 32);
- bytes[offset + 2] = (byte)(value >> 40);
- bytes[offset + 1] = (byte)(value >> 48);
- bytes[offset] = (byte)(value >> 56);
- return 8;
- }
-
- public static int longTo4ByteArray(byte[] bytes, int offset, long value) {
- bytes[offset + 3] = (byte)value;
- bytes[offset + 2] = (byte)(value >> 8);
- bytes[offset + 1] = (byte)(value >> 16);
- bytes[offset + 0] = (byte)(value >> 24);
- return 4;
- }
-
- public static int byteArrayToShort(byte[] bytes) {
- return byteArrayToShort(bytes, 0);
- }
-
- public static int byteArrayToShort(byte[] bytes, int offset) {
- return
- (bytes[offset] & 0xff) << 8 | (bytes[offset + 1] & 0xff);
- }
-
- // The SSL patented 3-byte Value.
- public static int byteArrayToMedium(byte[] bytes, int offset) {
- return
- (bytes[offset] & 0xff) << 16 |
- (bytes[offset + 1] & 0xff) << 8 |
- (bytes[offset + 2] & 0xff);
- }
-
- public static int byteArrayToInt(byte[] bytes) {
- return byteArrayToInt(bytes, 0);
- }
-
- public static int byteArrayToInt(byte[] bytes, int offset) {
- return
- (bytes[offset] & 0xff) << 24 |
- (bytes[offset + 1] & 0xff) << 16 |
- (bytes[offset + 2] & 0xff) << 8 |
- (bytes[offset + 3] & 0xff);
- }
-
- public static int byteArrayToIntLittleEndian(byte[] bytes, int offset) {
- return
- (bytes[offset + 3] & 0xff) << 24 |
- (bytes[offset + 2] & 0xff) << 16 |
- (bytes[offset + 1] & 0xff) << 8 |
- (bytes[offset] & 0xff);
- }
-
- public static long byteArrayToLong(byte[] bytes) {
- return byteArrayToLong(bytes, 0);
- }
-
- public static long byteArray4ToLong(byte[] bytes, int offset) {
- return
- ((bytes[offset + 0] & 0xffL) << 24) |
- ((bytes[offset + 1] & 0xffL) << 16) |
- ((bytes[offset + 2] & 0xffL) << 8) |
- ((bytes[offset + 3] & 0xffL));
- }
-
- public static long byteArrayToLong(byte[] bytes, int offset) {
- return
- ((bytes[offset] & 0xffL) << 56) |
- ((bytes[offset + 1] & 0xffL) << 48) |
- ((bytes[offset + 2] & 0xffL) << 40) |
- ((bytes[offset + 3] & 0xffL) << 32) |
- ((bytes[offset + 4] & 0xffL) << 24) |
- ((bytes[offset + 5] & 0xffL) << 16) |
- ((bytes[offset + 6] & 0xffL) << 8) |
- ((bytes[offset + 7] & 0xffL));
- }
-
-}