internal ReparsePointInfo(REPARSE_DATA_BUFFER buffer)
{
if (buffer.ReparseTag == 0xa000000c)
{
this.Target = Encoding.Unicode.GetString(buffer.PathBuffer, buffer.SubstituteNameOffset + 4, buffer.SubstituteNameLength);
this.Name = Encoding.Unicode.GetString(buffer.PathBuffer, buffer.PrintNameOffset + 4, buffer.PrintNameLength);
this.ReparseType = Microsoft.IO.ReparseType.SymbolicLink;
}
else if (buffer.ReparseTag == 0xa0000003)
{
this.Target = Encoding.Unicode.GetString(buffer.PathBuffer, buffer.SubstituteNameOffset, buffer.SubstituteNameLength);
this.Name = Encoding.Unicode.GetString(buffer.PathBuffer, buffer.PrintNameOffset, buffer.PrintNameLength);
if (this.Target.StartsWith(@"\??\Volume", StringComparison.Ordinal))
{
this.Target = @"\\?\Volume" + this.Target.Substring(@"\??\Volume".Length);
this.ReparseType = Microsoft.IO.ReparseType.MountPoint;
}
else
{
if (this.Target.StartsWith(@"\??\", StringComparison.Ordinal))
{
this.Target = this.Target.Substring(@"\??\".Length);
}
this.ReparseType = Microsoft.IO.ReparseType.JunctionPoint;
}
}
else
{
this.ReparseType = Microsoft.IO.ReparseType.Unknown;
}
}
public static void Create(string emptyFolder, string targetFolder)
{
if (emptyFolder == null)
{
throw new ArgumentNullException("emptyFolder");
}
if (emptyFolder == string.Empty)
{
throw new ArgumentException("String is empty.", "emptyFolder");
}
if (targetFolder == null)
{
throw new ArgumentNullException("targetFolder");
}
if (targetFolder == string.Empty)
{
throw new ArgumentException("String is empty.", "targetFolder");
}
if (string.IsNullOrEmpty(Path.GetPathRoot(targetFolder)))
{
throw new ArgumentException("targetFolder is not full quilified folder path.", "targetFolder");
}
using (SafeFileHandle handle = OpenReparsePoint(emptyFolder, FileAccess.Write))
{
REPARSE_DATA_BUFFER structure = new REPARSE_DATA_BUFFER {
ReparseTag = 0xa0000003
};
StringBuilder builder = new StringBuilder(@"\??\");
builder.Append(targetFolder);
if (builder[builder.Length - 1] != Path.DirectorySeparatorChar)
{
builder.Append(Path.DirectorySeparatorChar);
}
structure.PathBuffer = new byte[0x3ff0];
structure.SubstituteNameLength = (ushort) Encoding.Unicode.GetBytes(builder.ToString(), 0, builder.Length, structure.PathBuffer, 0);
structure.SubstituteNameOffset = 0;
structure.ReparseDataLength = (ushort) (structure.SubstituteNameLength + 12);
structure.PrintNameOffset = (ushort) (structure.SubstituteNameLength + 2);
IntPtr ptr = Marshal.AllocHGlobal(Marshal.SizeOf(structure));
try
{
uint num;
Marshal.StructureToPtr(structure, ptr, false);
if (!Microsoft.Win32.IOCTL.IOCTL.DeviceIoControl(handle, FSCTL.FSCTL_SET_REPARSE_POINT, ptr, structure.SubstituteNameLength + 20, IntPtr.Zero, 0, out num, IntPtr.Zero))
{
throw IoHelper.GetIOException();
}
}
finally
{
Marshal.FreeHGlobal(ptr);
}
}
}
