/// <summary>
/// Reads the streams from the file.
/// </summary>
private void InitStreams()
{
//Open the file with backup semantics
IntPtr hFile = Kernel32.CreateFile(_file.FullName, Kernel32.FileAccessAPI.GENERIC_READ, FileShare.Read, IntPtr.Zero, FileMode.Open, Kernel32.FileFlags.BackupSemantics, IntPtr.Zero);
if (hFile.ToInt32() == Kernel32.INVALID_HANDLE_VALUE)
{
return;
}
try
{
Kernel32.WIN32_STREAM_ID sid = new Kernel32.WIN32_STREAM_ID();
uint dwStreamHeaderSize = (uint)Marshal.SizeOf(sid);
IntPtr context = IntPtr.Zero;
bool @continue = true;
while (@continue)
{
//Read the next stream header
uint lRead = 0;
@continue = Kernel32.BackupRead(hFile, ref sid, dwStreamHeaderSize, out lRead, false, false, ref context);
if (@continue && lRead == dwStreamHeaderSize)
{
if (sid.dwStreamNameSize > 0)
{
//Read the stream name
lRead = 0;
IntPtr pName = Marshal.AllocHGlobal(sid.dwStreamNameSize);
try
{
@continue = Kernel32.BackupRead(hFile, pName, (uint)sid.dwStreamNameSize, out lRead, false, false, ref context);
char[] bName = new char[sid.dwStreamNameSize];
Marshal.Copy(pName, bName, 0, sid.dwStreamNameSize);
//Name is of the format ":NAME:$DATA\0"
string sName = new string(bName);
int i = sName.IndexOf(Kernel32.STREAM_SEP, 1);
if (i > -1)
{
sName = sName.Substring(1, i - 1);
}
else
{
//This should never happen.
//Truncate the name at the first null char.
i = sName.IndexOf('\0');
if (i > -1)
{
sName = sName.Substring(1, i - 1);
}
}
//Add the stream to the collection
base.List.Add(new StreamInfo(this, sName, sid.Size.ToInt64()));
}
finally
{
Marshal.FreeHGlobal(pName);
}
}
//Skip the stream contents
uint l; uint h;
@continue = Kernel32.BackupSeek(hFile, (uint)sid.Size.Low, (uint)sid.Size.High, out l, out h, ref context);
}
else
{
break;
}
}
}
finally
{
Kernel32.CloseHandle(hFile);
}
}
/// <summary>
/// Reads the streams from the file.
/// </summary>
private void InitStreams()
{
//Open the file with backup semantics
IntPtr hFile = Kernel32.CreateFile(_file.FullName, Kernel32.FileAccessAPI.GENERIC_READ, FileShare.Read, IntPtr.Zero, FileMode.Open, Kernel32.FileFlags.BackupSemantics, IntPtr.Zero);
if (hFile.ToInt32() == Kernel32.INVALID_HANDLE_VALUE) return;
try
{
Kernel32.WIN32_STREAM_ID sid = new Kernel32.WIN32_STREAM_ID();
uint dwStreamHeaderSize = (uint)Marshal.SizeOf(sid);
IntPtr context = IntPtr.Zero;
bool @continue = true;
while (@continue)
{
//Read the next stream header
uint lRead = 0;
@continue = Kernel32.BackupRead(hFile, ref sid, dwStreamHeaderSize, out lRead, false, false, ref context);
if (@continue && lRead == dwStreamHeaderSize)
{
if (sid.dwStreamNameSize > 0)
{
//Read the stream name
lRead = 0;
IntPtr pName = Marshal.AllocHGlobal(sid.dwStreamNameSize);
try
{
@continue = Kernel32.BackupRead(hFile, pName, (uint)sid.dwStreamNameSize, out lRead, false, false, ref context);
char[] bName = new char[sid.dwStreamNameSize];
Marshal.Copy(pName, bName, 0, sid.dwStreamNameSize);
//Name is of the format ":NAME:$DATA\0"
string sName = new string(bName);
int i = sName.IndexOf(Kernel32.STREAM_SEP, 1);
if (i > -1) sName = sName.Substring(1, i - 1);
else
{
//This should never happen.
//Truncate the name at the first null char.
i = sName.IndexOf('\0');
if (i > -1) sName = sName.Substring(1, i - 1);
}
//Add the stream to the collection
base.List.Add(new StreamInfo(this, sName, sid.Size.ToInt64()));
}
finally
{
Marshal.FreeHGlobal(pName);
}
}
//Skip the stream contents
uint l; uint h;
@continue = Kernel32.BackupSeek(hFile, (uint)sid.Size.Low, (uint)sid.Size.High, out l, out h, ref context);
}
else break;
}
}
finally
{
Kernel32.CloseHandle(hFile);
}
}
