Package nl.sidnlabs.pcap

Class PcapReaderUtil

java.lang.Object

nl.sidnlabs.pcap.PcapReaderUtil

public class PcapReaderUtil
extends Object

Method Summary

Modifier and Type	Method	Description
static InetAddress	convertDataToInetAddress(byte[] data, int offset, int size)
static long	convertInt(byte[] data)
static long	convertInt(byte[] data, boolean reversed)
static long	convertInt(byte[] data, int offset)
static long	convertInt(byte[] data, int offset, boolean reversed)
static String	convertProtocolIdentifier(int identifier)
static int	convertShort(byte[] data)
static int	convertShort(byte[] data, int offset)
static byte[]	convertShort(int data)
static long	convertUnsignedInt(byte[] data, int offset)
static byte[]	readPayload(byte[] packetData, int payloadDataStart, int payloadLength)	Reads the packet payload and returns it as byte[].
static ByteBuffer	readPayloadToBuffer(byte[] packetData, int payloadDataStart, int payloadLength, ByteBuffer outBuffer)
static short	readUnsignedByte(byte[] buf, int index)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

convertInt

public static long convertInt(byte[] data)

convertInt

public static long convertInt(byte[] data,
                              boolean reversed)

convertInt

public static long convertInt(byte[] data,
                              int offset,
                              boolean reversed)

convertInt

public static long convertInt(byte[] data,
                              int offset)

convertShort

public static int convertShort(byte[] data)

convertShort

public static byte[] convertShort(int data)

convertShort

public static int convertShort(byte[] data,
                               int offset)

convertUnsignedInt

public static long convertUnsignedInt(byte[] data,
                                      int offset)

convertProtocolIdentifier

public static String convertProtocolIdentifier(int identifier)

convertDataToInetAddress

public static InetAddress convertDataToInetAddress(byte[] data,
                                                   int offset,
                                                   int size)

readUnsignedByte

public static short readUnsignedByte(byte[] buf,
                                     int index)

readPayload

public static byte[] readPayload(byte[] packetData,
                                 int payloadDataStart,
                                 int payloadLength)

Reads the packet payload and returns it as byte[]. If the payload could not be read an empty byte[] is returned.

Parameters:

packetData - data to read from

payloadDataStart - start of data

payloadLength - bytes to read

Returns:

payload as byte[]

readPayloadToBuffer

public static ByteBuffer readPayloadToBuffer(byte[] packetData,
                                             int payloadDataStart,
                                             int payloadLength,
                                             ByteBuffer outBuffer)