/// <summary>
/// Query the directory for a list of entries.
/// </summary>
/// <returns>The list of entries.</returns>
/// <exception cref="NtException">Thrown on error</exception>
public IEnumerable<ObjectDirectoryInformation> Query()
{
using (SafeStructureInOutBuffer<OBJECT_DIRECTORY_INFORMATION> buffer
= new SafeStructureInOutBuffer<OBJECT_DIRECTORY_INFORMATION>(2048, true))
{
NtStatus status;
int context = 0;
int return_length = 0;
while ((status = NtSystemCalls.NtQueryDirectoryObject(Handle, buffer, buffer.Length, false,
true, ref context, out return_length)) == NtStatus.STATUS_MORE_ENTRIES)
{
buffer.Resize(buffer.Length * 2);
}
if (status == NtStatus.STATUS_NO_MORE_ENTRIES)
{
yield break;
}
status.ToNtException();
IntPtr current = buffer.DangerousGetHandle();
string name = String.Empty;
while(true)
{
OBJECT_DIRECTORY_INFORMATION dir_info = (OBJECT_DIRECTORY_INFORMATION)Marshal.PtrToStructure(current, typeof(OBJECT_DIRECTORY_INFORMATION));
name = dir_info.Name.ToString();
if (name.Length == 0)
{
break;
}
yield return new ObjectDirectoryInformation(this, dir_info);
current += Marshal.SizeOf(dir_info);
}
}
}
internal ObjectDirectoryInformation(NtDirectory root, string base_path, OBJECT_DIRECTORY_INFORMATION info)
: this(root, base_path, info.Name.ToString(), info.TypeName.ToString())
{
}