/*
* Copyright 2010 NCHOVY
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.krakenapps.pcap.util;
import java.net.InetAddress;
import java.net.UnknownHostException;
import org.krakenapps.pcap.decoder.ethernet.MacAddress;
/**
* @author mindori
*/
public class ByteArrayParser {
private ByteArrayParser() {
}
public static int getInt(byte[] data, int offset) {
return data[offset] << 24 | ((data[offset + 1] << 16) & 0xFFFFFF) | ((data[offset + 2] << 8) & 0xFFFF)
| ((data[offset + 3]) & 0xFF);
}
public static MacAddress getMacAddress(byte[] data, int offset) {
byte[] mac = new byte[6];
for (int i = 0; i < 6; i++)
mac[i] = data[offset + i];
return new MacAddress(mac);
}
public static short getShort(byte[] data, int offset) {
short s = (short) ((data[offset] << 8) & 0xFF00);
s |= data[offset + 1] & 0xFF;
return s;
}
public static InetAddress getAddress(byte[] data, int offset) {
byte[] addr = new byte[4];
for (int i = 0; i < 4; i++) {
addr[i] = data[offset + i];
}
try {
return InetAddress.getByAddress(addr);
} catch (UnknownHostException e) {
e.printStackTrace();
return null;
}
}
}