/* $Id$
 * captive vfs 'directory' interface to reactos of sandbox slave
 * Copyright (C) 2002-2003 Jan Kratochvil <project-captive@jankratochvil.net>
 * 
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; exactly version 2 of June 1991 is required
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */


#include "config.h"

#include "directory-slave.h"	/* self */
#include "captive/client-directory.h"	/* for CaptiveDirectoryObject */
#include "directory.h"	/* for CaptiveDirectoryObject priv */
#include "lib.h"
#include <glib/gmessages.h>
#include "captive/unicode.h"
#include "reactos/ntos/types.h"	/* for HANDLE */
#include "reactos/ddk/iotypes.h"	/* for IO_STATUS_BLOCK */
#include "reactos/ddk/iofuncs.h"	/* for IoCreateFile() */
#include "result.h"
#include "captive/leave.h"
#include "captive/usecount.h"
#include "vfs.h"
#include "vfs-slave.h"
#include "captive/rtl-time.h"


static gpointer captive_directory_slave_object_parent_class=NULL;

static GnomeVFSResult captive_directory_slave_close(CaptiveDirectoryObject *captive_directory_object);
static GnomeVFSResult captive_directory_slave_read
		(CaptiveDirectoryObject *captive_directory_object,CaptiveFileInfoObject **captive_file_info_object_return);
static GnomeVFSResult captive_directory_slave_remove(CaptiveDirectoryObject *captive_directory_object);


static void captive_directory_slave_object_finalize(CaptiveDirectorySlaveObject *captive_directory_slave_object)
{
	g_return_if_fail(captive_directory_slave_object!=NULL);

	captive_directory_slave_close(CAPTIVE_DIRECTORY_OBJECT(captive_directory_slave_object));	/* errors ignored */

	G_OBJECT_CLASS(captive_directory_slave_object_parent_class)->finalize((GObject *)captive_directory_slave_object);
}


static void captive_directory_slave_object_class_init(CaptiveDirectorySlaveObjectClass *class)
{
GObjectClass *gobject_class=G_OBJECT_CLASS(class);
CaptiveDirectoryObjectClass *captive_directory_object_class=CAPTIVE_DIRECTORY_OBJECT_CLASS(class);

	captive_directory_slave_object_parent_class=g_type_class_ref(g_type_parent(G_TYPE_FROM_CLASS(class)));
	gobject_class->finalize=(void (*)(GObject *object))captive_directory_slave_object_finalize;
	captive_directory_object_class->read=captive_directory_slave_read;
	captive_directory_object_class->remove=captive_directory_slave_remove;
}


static void captive_directory_slave_object_init(CaptiveDirectorySlaveObject *captive_directory_slave_object)
{
	captive_directory_slave_object->dir_Handle=NULL;
	captive_directory_slave_object->read_first=TRUE;
	captive_directory_slave_object->CaptiveDirectorySlaveObject_QueryDirectory_type=
			CaptiveDirectorySlaveObject_QueryDirectory_type_FileIdBothDirInformation;
}


GType captive_directory_slave_object_get_type(void)
{
static GType captive_directory_slave_object_type=0;

	if (!captive_directory_slave_object_type) {
static const GTypeInfo captive_directory_slave_object_info={
				sizeof(CaptiveDirectorySlaveObjectClass),
				NULL,	/* base_init */
				NULL,	/* base_finalize */
				(GClassInitFunc)captive_directory_slave_object_class_init,
				NULL,	/* class_finalize */
				NULL,	/* class_data */
				sizeof(CaptiveDirectorySlaveObject),
				5,	/* n_preallocs */
				(GInstanceInitFunc)captive_directory_slave_object_init,
				};

		captive_directory_slave_object_type=g_type_register_static(CAPTIVE_DIRECTORY_TYPE_OBJECT,
				"CaptiveDirectorySlaveObject",&captive_directory_slave_object_info,0);
		}

	return captive_directory_slave_object_type;
}


static GnomeVFSResult captive_directory_slave_new_internal
		(CaptiveDirectorySlaveObject *captive_directory_slave_object,const gchar *pathname,gboolean create,guint create_perm)
{
GnomeVFSResult errvfsresult;
OBJECT_ATTRIBUTES dir_ObjectAttributes;
HANDLE dir_Handle;
IO_STATUS_BLOCK dir_IoStatusBlock;
NTSTATUS err;

	g_return_val_if_fail(captive_directory_slave_object!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
	g_return_val_if_fail(pathname!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);

	errvfsresult=captive_ObjectAttributes_init(pathname,&dir_ObjectAttributes);
	g_return_val_if_fail(errvfsresult==GNOME_VFS_OK,errvfsresult);
	
	/* wanted: * IoCreateFile()->ObCreateObject(,,,IoFileObjectType)->
	 * ->(IoFileObjectType->Create==IopCreateFile)()->IoMountVolume()
	 */
	err=IoCreateFile(
			&dir_Handle,	/* FileHandle */
			FILE_LIST_DIRECTORY,	/* DesiredAccess */
			&dir_ObjectAttributes,	/* ObjectAttributes */
			&dir_IoStatusBlock,	/* IoStatusBlock */
			NULL,	/* AllocationSize; ignored for open */
			(!create || create_perm&0200 ? FILE_ATTRIBUTE_NORMAL: FILE_ATTRIBUTE_READONLY),	/* FileAttributes; ignored for open */
			(FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE),	/* ShareAccess; 0 means exclusive */
			(!create ? FILE_OPEN : FILE_CREATE),	/* CreateDisposition */
			/* FILE_SYNCHRONOUS_IO_{,NON}ALERT: We need to allow W32 filesystem
			 * any waits to not to let it return STATUS_CANT_WAIT us.
			 * Alertability should have only effect on asynchronous events
			 * from KeWaitForSingleObject() by setting/clearing its parameter 'Alertable'.
			 */
			FILE_DIRECTORY_FILE|FILE_SYNCHRONOUS_IO_ALERT,	/* CreateOptions */
			NULL,	/* EaBuffer */
			0,	/* EaLength */
			CreateFileTypeNone,	/* CreateFileType */
			NULL,	/* ExtraCreateParameters */
			0);	/* Options */
	g_free(dir_ObjectAttributes.ObjectName);	/* left from captive_gnomevfs_uri_parent_init() */
	g_return_val_if_fail(NT_SUCCESS(err)==NT_SUCCESS(dir_IoStatusBlock.Status),GNOME_VFS_ERROR_GENERIC);
	if (GNOME_VFS_OK!=(errvfsresult=captive_NTSTATUS_to_GnomeVFSResult(err)))
		return errvfsresult;
	g_return_val_if_fail(NT_SUCCESS(err),GNOME_VFS_ERROR_GENERIC);
	g_return_val_if_fail(dir_IoStatusBlock.Information
					==(!create ? FILE_OPENED : FILE_CREATED),
			GNOME_VFS_ERROR_GENERIC);

	captive_directory_slave_object->dir_Handle=dir_Handle;

	return GNOME_VFS_OK;
}


GnomeVFSResult captive_directory_slave_new_open(CaptiveDirectoryObject **captive_directory_object_return,
		CaptiveVfsObject *captive_vfs_object,const gchar *pathname)
{
GnomeVFSResult r;
CaptiveDirectorySlaveObject *captive_directory_slave_object;

	g_return_val_if_fail(captive_directory_object_return!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
	g_return_val_if_fail(CAPTIVE_VFS_SLAVE_IS_OBJECT(captive_vfs_object),GNOME_VFS_ERROR_BAD_PARAMETERS);
	g_return_val_if_fail(pathname!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);

	captive_directory_slave_object=g_object_new(
			CAPTIVE_DIRECTORY_SLAVE_TYPE_OBJECT,	/* object_type */
			NULL);	/* first_property_name; FIXME: support properties */

	captive_directory_init(CAPTIVE_DIRECTORY_OBJECT(captive_directory_slave_object),captive_vfs_object);

	*captive_directory_object_return=CAPTIVE_DIRECTORY_OBJECT(captive_directory_slave_object);

	r=captive_directory_slave_new_internal(captive_directory_slave_object,pathname,
			FALSE,	/* create */
			0);	/* create_perm; ignored */

	captive_leave();
	if (r==GNOME_VFS_OK)
		captive_usecount(+1);
	else {
		g_object_unref(captive_directory_slave_object);
		*captive_directory_object_return=NULL;
		}
	return r;
}


GnomeVFSResult captive_directory_slave_new_make(CaptiveDirectoryObject **captive_directory_object_return,
		CaptiveVfsObject *captive_vfs_object,const gchar *pathname,guint perm)
{
GnomeVFSResult r;
CaptiveDirectorySlaveObject *captive_directory_slave_object;

	g_return_val_if_fail(captive_directory_object_return!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
	g_return_val_if_fail(CAPTIVE_VFS_SLAVE_IS_OBJECT(captive_vfs_object),GNOME_VFS_ERROR_BAD_PARAMETERS);
	g_return_val_if_fail(pathname!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);

	captive_directory_slave_object=g_object_new(
			CAPTIVE_DIRECTORY_SLAVE_TYPE_OBJECT,	/* object_type */
			NULL);	/* first_property_name; FIXME: support properties */

	captive_directory_init(CAPTIVE_DIRECTORY_OBJECT(captive_directory_slave_object),captive_vfs_object);

	*captive_directory_object_return=CAPTIVE_DIRECTORY_OBJECT(captive_directory_slave_object);

	r=captive_directory_slave_new_internal(captive_directory_slave_object,pathname,
			TRUE,	/* create */
			perm);	/* create_perm; ignored */

	captive_leave();
	if (r==GNOME_VFS_OK)
		captive_usecount(+1);
	else {
		g_object_unref(captive_directory_slave_object);
		*captive_directory_object_return=NULL;
		}
	return r;
}


static GnomeVFSResult FileIdBothDirInformation_to_CaptiveFileInfoObject(
		CaptiveFileInfoObject **captive_file_info_object_return,
		FILE_ID_BOTH_DIR_INFORMATION *FileIdBothDirInformation,IO_STATUS_BLOCK *IoStatusBlock)
{
UNICODE_STRING FileName_UnicodeString;
GnomeVFSResult errvfsresult;
CaptiveFileInfoObject *captive_file_info_object;

	g_return_val_if_fail(captive_file_info_object_return!=NULL,GNOME_VFS_ERROR_GENERIC);
	g_return_val_if_fail(FileIdBothDirInformation!=NULL,GNOME_VFS_ERROR_GENERIC);
	g_return_val_if_fail(IoStatusBlock!=NULL,GNOME_VFS_ERROR_GENERIC);

	errvfsresult=captive_file_info_object_new(&captive_file_info_object);
	g_return_val_if_fail(GNOME_VFS_OK==errvfsresult,errvfsresult);

	g_return_val_if_fail(NT_SUCCESS(IoStatusBlock->Status),GNOME_VFS_ERROR_GENERIC);
	/* do not exceed the returned buffer by this record; Redundant now, see below. */
	g_assert((gpointer)(((char *)FileIdBothDirInformation)+FileIdBothDirInformation->NextEntryOffset)
			<=(gpointer)(((char *)FileIdBothDirInformation)+IoStatusBlock->Information));
	/* '->NextEntryOffset' is ==0 as we used 'ReturnSingleEntry==TRUE' */
	g_assert(FileIdBothDirInformation->NextEntryOffset==0);

	captive_file_info_object->p.valid_fields=0;

	FileName_UnicodeString.Length=FileIdBothDirInformation->FileNameLength;
	FileName_UnicodeString.MaximumLength=FileIdBothDirInformation->FileNameLength
			+sizeof(*FileIdBothDirInformation->FileName);	/* 0-terminator */
	g_assert((gpointer)(((char *)FileIdBothDirInformation->FileName)+FileName_UnicodeString.Length)
			<=(gpointer)(((char *)FileIdBothDirInformation)+IoStatusBlock->Information));
					/* ensure we fit below '->IoStatusBlock->Information' at least without the 0-terminator */
	FileIdBothDirInformation->FileName[FileIdBothDirInformation->FileNameLength
			/sizeof(*FileIdBothDirInformation->FileName)]=0;	/* 0-terminate it */
	FileName_UnicodeString.Buffer=FileIdBothDirInformation->FileName;
	captive_file_info_object->p.name=captive_UnicodeString_to_utf8_malloc(&FileName_UnicodeString);
	/* '->name' assumed for 'captive_file_info_object->p.valid_fields' */

	/* FIXME: What is 'FILE_ATTRIBUTE_NORMAL'? */
	switch (FileIdBothDirInformation->FileAttributes & (0
			| FILE_ATTRIBUTE_DIRECTORY
			| FILE_ATTRIBUTE_DEVICE)) {
		case 0:                        captive_file_info_object->p.type=GNOME_VFS_FILE_TYPE_REGULAR;   break;
		case FILE_ATTRIBUTE_DIRECTORY: captive_file_info_object->p.type=GNOME_VFS_FILE_TYPE_DIRECTORY; break;
		case FILE_ATTRIBUTE_DEVICE:    captive_file_info_object->p.type=GNOME_VFS_FILE_TYPE_SOCKET;
			/* or GNOME_VFS_FILE_TYPE_CHARACTER_DEVICE or GNOME_VFS_FILE_TYPE_BLOCK_DEVICE ? */
			break;
		default:                       captive_file_info_object->p.type=GNOME_VFS_FILE_TYPE_UNKNOWN;   break;
		}
	captive_file_info_object->p.valid_fields|=GNOME_VFS_FILE_INFO_FIELDS_TYPE;

	/* we use 0600 for r/w files, 0400 for FILE_ATTRIBUTE_READONLY */
	captive_file_info_object->p.permissions=GNOME_VFS_PERM_USER_READ;
	if (captive_file_info_object->p.type==GNOME_VFS_FILE_TYPE_DIRECTORY)
		captive_file_info_object->p.permissions|=GNOME_VFS_PERM_USER_EXEC;
	if (!(FileIdBothDirInformation->FileAttributes & FILE_ATTRIBUTE_READONLY))
		captive_file_info_object->p.permissions|=GNOME_VFS_PERM_USER_WRITE;
	captive_file_info_object->p.valid_fields|=GNOME_VFS_FILE_INFO_FIELDS_PERMISSIONS;

	captive_file_info_object->p.size=FileIdBothDirInformation->EndOfFile.QuadPart;
	captive_file_info_object->p.valid_fields|=GNOME_VFS_FILE_INFO_FIELDS_SIZE;

	captive_file_info_object->p.block_count=FileIdBothDirInformation->AllocationSize.QuadPart/512;
	captive_file_info_object->p.valid_fields|=GNOME_VFS_FILE_INFO_FIELDS_BLOCK_COUNT;

	captive_file_info_object->p.flags=GNOME_VFS_FILE_FLAGS_LOCAL;
	captive_file_info_object->p.valid_fields|=GNOME_VFS_FILE_INFO_FIELDS_FLAGS;

	if (FileIdBothDirInformation->LastAccessTime.QuadPart) {	/* it may be 0 if not set */
struct timespec timespec;

		errvfsresult=Time_to_timespec(&timespec,&FileIdBothDirInformation->LastAccessTime);
		g_return_val_if_fail(GNOME_VFS_OK==errvfsresult,errvfsresult);
		captive_file_info_object->p.atime=timespec.tv_sec;
		captive_file_info_object->atime_nsec=timespec.tv_nsec;
		captive_file_info_object->p.valid_fields|=GNOME_VFS_FILE_INFO_FIELDS_ATIME;
		}

	/* it may be 0 if not set */
	if (FileIdBothDirInformation->LastWriteTime.QuadPart || FileIdBothDirInformation->ChangeTime.QuadPart) {
struct timespec timespec;

		errvfsresult=Time_to_timespec(&timespec,
				/* take the more recent (==bigger) time: */
				(FileIdBothDirInformation->LastWriteTime.QuadPart > FileIdBothDirInformation->ChangeTime.QuadPart
						? &FileIdBothDirInformation->LastWriteTime : &FileIdBothDirInformation->ChangeTime));
		g_return_val_if_fail(GNOME_VFS_OK==errvfsresult,errvfsresult);
		captive_file_info_object->p.mtime=timespec.tv_sec;
		captive_file_info_object->mtime_nsec=timespec.tv_nsec;
		captive_file_info_object->p.valid_fields|=GNOME_VFS_FILE_INFO_FIELDS_MTIME;
		}

	if (FileIdBothDirInformation->CreationTime.QuadPart) {	/* it may be 0 if not set */
struct timespec timespec;

		errvfsresult=Time_to_timespec(&timespec,&FileIdBothDirInformation->CreationTime);
		g_return_val_if_fail(GNOME_VFS_OK==errvfsresult,errvfsresult);
		captive_file_info_object->p.ctime=timespec.tv_sec;
		captive_file_info_object->ctime_nsec=timespec.tv_nsec;
		captive_file_info_object->p.valid_fields|=GNOME_VFS_FILE_INFO_FIELDS_CTIME;
		}

	*captive_file_info_object_return=captive_file_info_object;
	return GNOME_VFS_OK;
}


static GnomeVFSResult FileBothDirInformation_to_FileIdBothDirInformation(FILE_ID_BOTH_DIR_INFORMATION *FileIdBothDirInformation,
		FILE_BOTH_DIR_INFORMATION *FileBothDirInformation,IO_STATUS_BLOCK *IoStatusBlock)
{
static LARGE_INTEGER FileId_counter;

	g_return_val_if_fail(FileIdBothDirInformation!=NULL,GNOME_VFS_ERROR_GENERIC);
	g_return_val_if_fail(FileBothDirInformation!=NULL,GNOME_VFS_ERROR_GENERIC);
	g_return_val_if_fail(IoStatusBlock!=NULL,GNOME_VFS_ERROR_GENERIC);

	g_return_val_if_fail(NT_SUCCESS(IoStatusBlock->Status),GNOME_VFS_ERROR_GENERIC);
	/* do not exceed the returned buffer by this record; Redundant now, see below. */
	g_assert((gpointer)(((char *)FileBothDirInformation)+FileBothDirInformation->NextEntryOffset)
			<=(gpointer)(((char *)FileBothDirInformation)+IoStatusBlock->Information));
	/* '->NextEntryOffset' is ==0 as we used 'ReturnSingleEntry==TRUE' */
	g_assert(FileBothDirInformation->NextEntryOffset==0);

	g_assert((gpointer)(((char *)FileBothDirInformation->FileName)+FileBothDirInformation->FileNameLength)
			<=(gpointer)(((char *)FileBothDirInformation)+IoStatusBlock->Information));
					/* ensure we fit below '->IoStatusBlock->Information' at least without the 0-terminator */
	memcpy(FileIdBothDirInformation->FileName,FileBothDirInformation->FileName,
			FileBothDirInformation->FileNameLength);

	/* NextEntryOffset already handled */
	FileIdBothDirInformation->FileIndex      =FileBothDirInformation->FileIndex;
	FileIdBothDirInformation->CreationTime   =FileBothDirInformation->CreationTime;
	FileIdBothDirInformation->LastAccessTime =FileBothDirInformation->LastAccessTime;
	FileIdBothDirInformation->LastWriteTime  =FileBothDirInformation->LastWriteTime;
	FileIdBothDirInformation->ChangeTime     =FileBothDirInformation->ChangeTime;
	FileIdBothDirInformation->EndOfFile      =FileBothDirInformation->EndOfFile;
	FileIdBothDirInformation->AllocationSize =FileBothDirInformation->AllocationSize;
	FileIdBothDirInformation->FileAttributes =FileBothDirInformation->FileAttributes;
	FileIdBothDirInformation->FileNameLength =FileBothDirInformation->FileNameLength;
	FileIdBothDirInformation->EaSize         =FileBothDirInformation->EaSize;
	FileIdBothDirInformation->ShortNameLength=FileBothDirInformation->ShortNameLength;
	g_assert(sizeof(FileIdBothDirInformation->ShortName)==sizeof(FileBothDirInformation->ShortName));
	memcpy(FileIdBothDirInformation->ShortName,FileBothDirInformation->ShortName,
			sizeof(FileBothDirInformation->ShortName));
	/* FIXME: Register filenames for uniqueness;
	 * Not needed now as 'FileId' field not used by libcaptive anywhere anyway.
	 */
	FileIdBothDirInformation->FileId.QuadPart=FileId_counter.QuadPart++;
	/* FileName already handled */

	IoStatusBlock->Information=sizeof(*FileIdBothDirInformation)+FileIdBothDirInformation->FileNameLength;
	/* '->NextEntryOffset' is ==0 as we used 'ReturnSingleEntry==TRUE' */
	FileIdBothDirInformation->NextEntryOffset=0;

	return GNOME_VFS_OK;
}


static GnomeVFSResult captive_directory_slave_close(CaptiveDirectoryObject *captive_directory_object)
{
CaptiveDirectorySlaveObject *captive_directory_slave_object;
NTSTATUS err;
HANDLE dir_Handle;

	g_return_val_if_fail(CAPTIVE_DIRECTORY_SLAVE_IS_OBJECT(captive_directory_object),GNOME_VFS_ERROR_BAD_PARAMETERS);

	captive_directory_slave_object=CAPTIVE_DIRECTORY_SLAVE_OBJECT(captive_directory_object);

	if (captive_directory_slave_object->dir_Handle!=NULL)	{	/* not yet already closed */
		captive_usecount(-1);	/* close() errors notwithstanding */

		dir_Handle=captive_directory_slave_object->dir_Handle;
		captive_directory_slave_object->dir_Handle=NULL;
		err=NtClose(dir_Handle);
		g_return_val_if_fail(NT_SUCCESS(err),GNOME_VFS_ERROR_GENERIC);
		}

	captive_leave();
	return GNOME_VFS_OK;
}


static GnomeVFSResult captive_directory_slave_read
		(CaptiveDirectoryObject *captive_directory_object,CaptiveFileInfoObject **captive_file_info_object_return)
{
CaptiveDirectorySlaveObject *captive_directory_slave_object;
NTSTATUS err;
IO_STATUS_BLOCK dir_IoStatusBlock;
FILE_ID_BOTH_DIR_INFORMATION *FileIdBothDirInformation;
FILE_BOTH_DIR_INFORMATION *FileBothDirInformation;
GnomeVFSResult errvfsresult;

	g_return_val_if_fail(CAPTIVE_DIRECTORY_SLAVE_IS_OBJECT(captive_directory_object),GNOME_VFS_ERROR_BAD_PARAMETERS);
	g_return_val_if_fail(captive_file_info_object_return!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);

	captive_directory_slave_object=CAPTIVE_DIRECTORY_SLAVE_OBJECT(captive_directory_object);

	g_return_val_if_fail(captive_directory_slave_object->dir_Handle!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);

	FileIdBothDirInformation=(void *)captive_directory_slave_object->QueryDirectory_buf.FileIdBothDirInformation;
retry:
	switch (captive_directory_slave_object->CaptiveDirectorySlaveObject_QueryDirectory_type) {

		case CaptiveDirectorySlaveObject_QueryDirectory_type_FileIdBothDirInformation:
			err=NtQueryDirectoryFile(
					captive_directory_slave_object->dir_Handle,	/* FileHandle */
					NULL,	/* PEvent; completion signalling; optional */
					NULL,	/* ApcRoutine; optional */
					NULL,	/* ApcContext; optional */
					&dir_IoStatusBlock,	/* IoStatusBlock */
					(gpointer)captive_directory_slave_object->QueryDirectory_buf.FileIdBothDirInformation,	/* FileInformation */
					sizeof(captive_directory_slave_object->QueryDirectory_buf.FileIdBothDirInformation)	/* Length */
							-sizeof(*FileIdBothDirInformation->FileName),	/* reserve space for 0-terminator */
					FileIdBothDirectoryInformation,	/* FileInformationClass; =>FILE_ID_BOTH_DIR_INFORMATION */
					TRUE,	/* ReturnSingleEntry */
					NULL,	/* FileName; wildcards possible; optional */
					captive_directory_slave_object->read_first);	/* RestartScan */
			if (err==STATUS_NO_SUCH_FILE) {
				/* 'FileIdBothDirInformation' not supported at least by ext2fsd.sys.
				 * Emulate it from 'FileBothDirectoryInformation' here.
				 */
				captive_directory_slave_object->CaptiveDirectorySlaveObject_QueryDirectory_type=
						CaptiveDirectorySlaveObject_QueryDirectory_type_FileBothDirInformation;
				goto retry;
				}

			captive_directory_slave_object->read_first=FALSE;
			if (GNOME_VFS_OK!=(errvfsresult=captive_NTSTATUS_to_GnomeVFSResult(err)))
				return errvfsresult;
			g_return_val_if_fail(NT_SUCCESS(err),GNOME_VFS_ERROR_GENERIC);
			break;

		case CaptiveDirectorySlaveObject_QueryDirectory_type_FileBothDirInformation:
			FileBothDirInformation=(void *)captive_directory_slave_object->QueryDirectory_buf.FileBothDirInformation;
			/* SL_INDEX_SPECIFIED is forbidden for ext2fsd.sys-V0.10A although
			 * IIRC it was required for the native W32 filesystems.
			 * Fortunately 'FileBothDirInformation' is just a workaround for ext2fsd.sys-V0.10A
			 * which is not used for the native W32 filesystems and therefore it should be safe.
			 * WARNING: Hack with 'FileIndex==0' to prevent SL_INDEX_SPECIFIED is just libcaptive
			 * specific hack of reactos! See also NtQueryDirectoryFile().
			 */
			FileBothDirInformation->FileIndex=0;
			err=NtQueryDirectoryFile(
					captive_directory_slave_object->dir_Handle,	/* FileHandle */
					NULL,	/* PEvent; completion signalling; optional */
					NULL,	/* ApcRoutine; optional */
					NULL,	/* ApcContext; optional */
					&dir_IoStatusBlock,	/* IoStatusBlock */
					(gpointer)captive_directory_slave_object->QueryDirectory_buf.FileBothDirInformation,	/* FileInformation */
					sizeof(captive_directory_slave_object->QueryDirectory_buf.FileBothDirInformation)	/* Length */
							-sizeof(*FileBothDirInformation->FileName),	/* reserve space for 0-terminator */
					FileBothDirectoryInformation,	/* FileInformationClass; =>FILE_BOTH_DIR_INFORMATION */
					TRUE,	/* ReturnSingleEntry */
					NULL,	/* FileName; wildcards possible; optional */
					captive_directory_slave_object->read_first);	/* RestartScan */

			captive_directory_slave_object->read_first=FALSE;
			if (GNOME_VFS_OK!=(errvfsresult=captive_NTSTATUS_to_GnomeVFSResult(err))) {
				/* Do not reset 'read_first' on 'STATUS_NO_SUCH_FILE' to leave us stuck at EOF - GnomeVFS behaves that way. */
				return errvfsresult;
				}
			g_return_val_if_fail(NT_SUCCESS(err),GNOME_VFS_ERROR_GENERIC);
			
			errvfsresult=FileBothDirInformation_to_FileIdBothDirInformation(FileIdBothDirInformation,FileBothDirInformation,
					&dir_IoStatusBlock);
			g_return_val_if_fail(errvfsresult==GNOME_VFS_OK,errvfsresult);
			break;

		default: g_assert_not_reached();
		}

	errvfsresult=FileIdBothDirInformation_to_CaptiveFileInfoObject(captive_file_info_object_return,FileIdBothDirInformation,
			&dir_IoStatusBlock);
	g_return_val_if_fail(errvfsresult==GNOME_VFS_OK,errvfsresult);

	captive_leave();
	return GNOME_VFS_OK;
}


static GnomeVFSResult captive_directory_slave_remove(CaptiveDirectoryObject *captive_directory_object)
{
CaptiveDirectorySlaveObject *captive_directory_slave_object;
NTSTATUS err;
FILE_DISPOSITION_INFORMATION FileDispositionInformation_struct;
IO_STATUS_BLOCK dir_IoStatusBlock;
GnomeVFSResult errvfsresult;

	g_return_val_if_fail(CAPTIVE_DIRECTORY_SLAVE_IS_OBJECT(captive_directory_object),GNOME_VFS_ERROR_BAD_PARAMETERS);

	captive_directory_slave_object=CAPTIVE_DIRECTORY_SLAVE_OBJECT(captive_directory_object);

	g_return_val_if_fail(captive_directory_slave_object->dir_Handle!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);

	FileDispositionInformation_struct.DoDeleteFile=TRUE;

	err=NtSetInformationFile(
			captive_directory_slave_object->dir_Handle,	/* FileHandle */
			&dir_IoStatusBlock,	/* IoStatusBlock */
			&FileDispositionInformation_struct,	/* FileInformation */
			sizeof(FileDispositionInformation_struct),	/* Length */
			FileDispositionInformation);	/* FileInformationClass */
	if (GNOME_VFS_OK!=(errvfsresult=captive_NTSTATUS_to_GnomeVFSResult(err)))
		return errvfsresult;
	g_return_val_if_fail(NT_SUCCESS(err),GNOME_VFS_ERROR_GENERIC);

	captive_leave();
	return GNOME_VFS_OK;
}