/// <summary>
/// Get the symbolic link's target path.
/// </summary>
public static string GetSymbolicLinkTarget(SafeSymbolicLinkObjectHandle linkHandle)
{
return(BufferHelper.CachedInvoke((StringBuffer buffer) =>
{
UNICODE_STRING target = new UNICODE_STRING(buffer);
uint returnedLength;
NTSTATUS status;
while ((status = Direct.NtQuerySymbolicLinkObject(linkHandle, ref target, out returnedLength)) == NTSTATUS.STATUS_BUFFER_TOO_SMALL)
{
buffer.EnsureByteCapacity(returnedLength);
target.UpdateFromStringBuffer(buffer);
}
if (status != NTSTATUS.STATUS_SUCCESS)
{
throw ErrorHelper.GetIoExceptionForNTStatus(status);
}
buffer.Length = (uint)(target.Length / sizeof(char));
return buffer.ToString();
}));
}
public static extern NTSTATUS NtQuerySymbolicLinkObject(
SafeSymbolicLinkObjectHandle LinkHandle,
ref UNICODE_STRING LinkTarget,
out uint ReturnedLength);
unsafe public static extern NTSTATUS NtOpenSymbolicLinkObject(
out SafeSymbolicLinkObjectHandle LinkHandle,
ACCESS_MASK DesiredAccess,
ref OBJECT_ATTRIBUTES ObjectAttributes);
