public static SectionHeaderOption Parse(BinaryReader binaryReader, bool reverseByteOrder, Action <Exception> ActionOnException)
{
//Contract.Requires<ArgumentNullException>(binaryReader != null, "binaryReader cannot be null");
SectionHeaderOption option = new SectionHeaderOption();
List <KeyValuePair <ushort, byte[]> > optionsList = EkstractOptions(binaryReader, reverseByteOrder, ActionOnException);
if (optionsList.Any())
{
foreach (var item in optionsList)
{
try
{
switch (item.Key)
{
case (ushort)SectionHeaderOptionCode.CommentCode:
option.Comment = UTF8Encoding.UTF8.GetString(item.Value);
break;
case (ushort)SectionHeaderOptionCode.HardwareCode:
option.Hardware = UTF8Encoding.UTF8.GetString(item.Value);
break;
case (ushort)SectionHeaderOptionCode.OperatingSystemCode:
option.OperatingSystem = UTF8Encoding.UTF8.GetString(item.Value);
break;
case (ushort)SectionHeaderOptionCode.UserApplicationCode:
option.UserApplication = UTF8Encoding.UTF8.GetString(item.Value);
break;
case (ushort)SectionHeaderOptionCode.EndOfOptionsCode:
default:
break;
}
}
catch (Exception exc)
{
if (ActionOnException != null)
{
ActionOnException(exc);
}
}
}
}
return(option);
}
public static void SectionHeaderOption_ConvertToByte_Test(bool reorder)
{
SectionHeaderOption preOption = new SectionHeaderOption();
SectionHeaderOption postOption;
preOption.Comment = "Test Comment";
preOption.Hardware = "x86 Personal Computer";
preOption.OperatingSystem = "Windows 7";
preOption.UserApplication = "PcapngUtils";
byte[] preOptionByte = preOption.ConvertToByte(reorder, null);
using (MemoryStream stream = new MemoryStream(preOptionByte))
{
using (BinaryReader binaryReader = new BinaryReader(stream))
{
postOption = SectionHeaderOption.Parse(binaryReader, reorder, null);
}
}
Assert.IsNotNull(postOption);
Assert.AreEqual(preOption.Comment, postOption.Comment);
Assert.AreEqual(preOption.Hardware, postOption.Hardware);
Assert.AreEqual(preOption.OperatingSystem, postOption.OperatingSystem);
Assert.AreEqual(preOption.UserApplication, postOption.UserApplication);
}
public static void SectionHeaderOption_ConvertToByte_Test(bool reorder)
{
SectionHeaderOption preOption = new SectionHeaderOption();
SectionHeaderOption postOption;
preOption.Comment = "Test Comment";
preOption.Hardware = "x86 Personal Computer";
preOption.OperatingSystem = "Windows 7";
preOption.UserApplication = "PcapngUtils";
byte[] preOptionByte = preOption.ConvertToByte(reorder, null);
using (MemoryStream stream = new MemoryStream(preOptionByte))
{
using (BinaryReader binaryReader = new BinaryReader(stream))
{
postOption = SectionHeaderOption.Parse(binaryReader, reorder, null);
}
}
Assert.IsNotNull(postOption);
Assert.AreEqual(preOption.Comment, postOption.Comment);
Assert.AreEqual(preOption.Hardware, postOption.Hardware);
Assert.AreEqual(preOption.OperatingSystem, postOption.OperatingSystem);
Assert.AreEqual(preOption.UserApplication, postOption.UserApplication);
}
public static SectionHeaderOption Parse(BinaryReader binaryReader, bool reverseByteOrder, Action<Exception> ActionOnException)
{
Contract.Requires<ArgumentNullException>(binaryReader != null, "binaryReader cannot be null");
SectionHeaderOption option = new SectionHeaderOption();
List<KeyValuePair<ushort, byte[]>> optionsList = EkstractOptions(binaryReader, reverseByteOrder, ActionOnException);
if (optionsList.Any())
{
foreach (var item in optionsList)
{
try
{
switch (item.Key)
{
case (ushort)SectionHeaderOptionCode.CommentCode:
option.Comment = UTF8Encoding.UTF8.GetString(item.Value);
break;
case (ushort)SectionHeaderOptionCode.HardwareCode:
option.Hardware = UTF8Encoding.UTF8.GetString(item.Value);
break;
case (ushort)SectionHeaderOptionCode.OperatingSystemCode:
option.OperatingSystem = UTF8Encoding.UTF8.GetString(item.Value);
break;
case (ushort)SectionHeaderOptionCode.UserApplicationCode:
option.UserApplication = UTF8Encoding.UTF8.GetString(item.Value);
break;
case (ushort)SectionHeaderOptionCode.EndOfOptionsCode:
default:
break;
}
}
catch (Exception exc)
{
if (ActionOnException != null)
ActionOnException(exc);
}
}
}
return option;
}
/// <summary>
/// The Section Header Block is mandatory. It identifies the beginning of a section of the capture dump file. The Section Header Block
/// does not contain data but it rather identifies a list of blocks (interfaces, packets) that are logically correlated.
/// </summary>
public SectionHeaderBlock(MagicNumbers MagicNumber, UInt16 MajorVersion, UInt16 MinorVersion, Int64 SectionLength, SectionHeaderOption Options, long PositionInStream = 0)
{
Contract.Requires<ArgumentNullException>(Options != null, "Options cannot be null");
this.MagicNumber = MagicNumber;
this.MajorVersion = MajorVersion;
this.MinorVersion = MinorVersion;
this.SectionLength = SectionLength;
this.options = Options;
this.PositionInStream = PositionInStream;
}
public static SectionHeaderBlock GetEmptyHeader(bool ReverseByteOrder)
{
Assembly assembly = Assembly.GetExecutingAssembly();
AssemblyName assemblyName= assembly.GetName();
string app = string.Format("{0} {1}", assemblyName.Name, assemblyName.Version.ToString());
SectionHeaderOption options = new SectionHeaderOption(UserApplication: app);
return new SectionHeaderBlock(ReverseByteOrder ? MagicNumbers.Swapped : MagicNumbers.Identical, 1, 0, -1, options);
}
