Package io.netty.handler.pcap

Class PcapHeaders

java.lang.Object

io.netty.handler.pcap.PcapHeaders

final class PcapHeaders
extends Object

Field Summary

Fields

Modifier and Type	Field	Description
private static final byte[]	GLOBAL_HEADER	Pcap Global Header built from: magic_number version_major version_minor thiszone sigfigs snaplen network

Constructor Summary

Constructors

Modifier	Constructor	Description
private	PcapHeaders()

Method Summary

Modifier and Type	Method	Description
(package private) static void	writeGlobalHeader(OutputStream outputStream)	Writes the Pcap Global Header to the provided OutputStream
(package private) static void	writePacketHeader(ByteBuf byteBuf, int ts_sec, int ts_usec, int incl_len, int orig_len)	Write Pcap Packet Header

Methods inherited from class java.lang.Object

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

Field Details

GLOBAL_HEADER

private static final byte[] GLOBAL_HEADER

Pcap Global Header built from:

1. magic_number
2. version_major
3. version_minor
4. thiszone
5. sigfigs
6. snaplen
7. network

Constructor Details

PcapHeaders

private PcapHeaders()

Method Details

writeGlobalHeader

static void writeGlobalHeader(OutputStream outputStream)
                       throws IOException

Writes the Pcap Global Header to the provided OutputStream

Parameters:

outputStream - OutputStream where Pcap data will be written.

Throws:

IOException - if there is an error writing to the OutputStream

writePacketHeader

static void writePacketHeader(ByteBuf byteBuf,
 int ts_sec,
 int ts_usec,
 int incl_len,
 int orig_len)

Write Pcap Packet Header

Parameters:

byteBuf - ByteBuf where we'll write header data

ts_sec - timestamp seconds

ts_usec - timestamp microseconds

incl_len - number of octets of packet saved in file

orig_len - actual length of packet