/// <inheritdoc/>
public IPacket ReadNextPacket()
{
uint secs, usecs, caplen, len;
long position = 0;
byte[] data;
while (binaryReader.BaseStream.Position < binaryReader.BaseStream.Length)
{
lock (this.syncRoot)
{
position = binaryReader.BaseStream.Position;
secs = binaryReader.ReadUInt32().ReverseByteOrder(Header.ReverseByteOrder);
usecs = binaryReader.ReadUInt32().ReverseByteOrder(Header.ReverseByteOrder);
if (Header.NanoSecondResolution)
{
usecs = usecs / 1000;
}
caplen = binaryReader.ReadUInt32().ReverseByteOrder(Header.ReverseByteOrder);
len = binaryReader.ReadUInt32().ReverseByteOrder(Header.ReverseByteOrder);
data = binaryReader.ReadBytes((int)caplen);
if (data.Length < caplen)
{
throw new EndOfStreamException("Unable to read beyond the end of the stream");
}
}
var packet = new PcapPacket(secs, usecs, data, position);
return(packet);
}
return(null);
}
/// <summary>
/// Read all packet from a stream. After read any packet event OnReadPacketEvent is called.
/// Function is NOT asynchronous! (blocking thread). If you want abort it, use CancellationToken
/// </summary>
/// <param name="cancellationToken"></param>
public void ReadPackets(System.Threading.CancellationToken cancellationToken)
{
uint secs, usecs, caplen, len;
long position = 0;
byte[] data;
while (binaryReader.BaseStream.Position < binaryReader.BaseStream.Length && !cancellationToken.IsCancellationRequested)
{
try
{
lock (syncRoot)
{
position = binaryReader.BaseStream.Position;
secs = binaryReader.ReadUInt32().ReverseByteOrder(Header.ReverseByteOrder);
usecs = binaryReader.ReadUInt32().ReverseByteOrder(Header.ReverseByteOrder);
if (Header.NanoSecondResolution)
{
usecs = usecs / 1000;
}
caplen = binaryReader.ReadUInt32().ReverseByteOrder(Header.ReverseByteOrder);
len = binaryReader.ReadUInt32().ReverseByteOrder(Header.ReverseByteOrder);
data = binaryReader.ReadBytes((int)caplen);
if (data.Length < caplen)
{
throw new EndOfStreamException("Unable to read beyond the end of the stream");
}
}
PcapPacket packet = new PcapPacket((UInt64)secs, (UInt64)usecs, data, position);
OnReadPacket(packet);
}
catch (Exception exc)
{
OnException(exc);
}
}
}
