public PcapNGWriter(Stream stream, bool reverseByteOrder = false)
{
CustomContract.Requires <ArgumentNullException>(stream != null, "stream cannot be null");
HeaderWithInterfacesDescriptions header = HeaderWithInterfacesDescriptions.CreateEmptyHeadeWithInterfacesDescriptions(false);
Initialize(stream, new List <HeaderWithInterfacesDescriptions>()
{
header
});
}
public PcapNGWriter(string path, bool reverseByteOrder = false)
{
CustomContract.Requires <ArgumentNullException>(!string.IsNullOrWhiteSpace(path), "path cannot be null or empty");
CustomContract.Requires <ArgumentException>(!File.Exists(path), "file exists");
HeaderWithInterfacesDescriptions header = HeaderWithInterfacesDescriptions.CreateEmptyHeadeWithInterfacesDescriptions(false);
Initialize(new FileStream(path, FileMode.Create), new List <HeaderWithInterfacesDescriptions>()
{
header
});
}
public void WriteHeaderWithInterfacesDescriptions(HeaderWithInterfacesDescriptions headersWithInterface)
{
CustomContract.Requires <ArgumentNullException>(headersWithInterface != null, "headersWithInterface cannot be null");
CustomContract.Requires <ArgumentNullException>(headersWithInterface.Header != null, "headersWithInterface.Header cannot be null");
byte [] data = headersWithInterface.ConvertToByte(headersWithInterface.Header.ReverseByteOrder, OnException);
try
{
lock (syncRoot)
{
binaryWriter.Write(data);
}
}
catch (Exception exc)
{
OnException(exc);
}
}
public void WritePacket(IPacket packet)
{
try
{
AbstractBlock abstractBlock = null;
if (packet is AbstractBlock)
{
abstractBlock = packet as AbstractBlock;
}
else
{
abstractBlock = EnchantedPacketBlock.CreateEnchantedPacketFromIPacket(packet, OnException);
}
HeaderWithInterfacesDescriptions header = this.HeadersWithInterfaces.Last();
byte[] data = abstractBlock.ConvertToByte(header.Header.ReverseByteOrder, OnException);
if (abstractBlock.AssociatedInterfaceID.HasValue)
{
if (abstractBlock.AssociatedInterfaceID.Value >= header.InterfaceDescriptions.Count)
{
throw new ArgumentOutOfRangeException(string.Format("[PcapNGWriter.WritePacket] Packet interface ID: {0} is greater than InterfaceDescriptions count: {1}", abstractBlock.AssociatedInterfaceID.Value, header.InterfaceDescriptions.Count));
}
int maxLength = header.InterfaceDescriptions[abstractBlock.AssociatedInterfaceID.Value].SnapLength;
if (data.Length > maxLength)
{
throw new ArgumentOutOfRangeException(string.Format("[PcapNGWriter.WritePacket] block length: {0} is greater than MaximumCaptureLength: {1}", data.Length, maxLength));
}
}
lock (syncRoot)
{
binaryWriter.Write(data);
}
}
catch (Exception exc)
{
OnException(exc);
}
}
