src/libcaptive/client/directory.c

   1 /* $Id$
   2  * captive vfs 'directory' interface to reactos
   3  * Copyright (C) 2002-2003 Jan Kratochvil <project-captive@jankratochvil.net>
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; exactly version 2 of June 1991 is required
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write to the Free Software
  16  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  17  */
  18
  19
  20 #include "config.h"
  21
  22 #include "captive/client-directory.h"   /* self */
  23 #include "directory.h"  /* self-priv */
  24 #include "lib.h"
  25 #include <glib/gmessages.h>
  26 #include "captive/unicode.h"
  27 #include "reactos/ntos/types.h" /* for HANDLE */
  28 #include "reactos/ddk/iotypes.h"        /* for IO_STATUS_BLOCK */
  29 #include "reactos/ddk/iofuncs.h"        /* for IoCreateFile() */
  30 #include "result.h"
  31 #include "captive/leave.h"
  32 #include "captive/usecount.h"
  33 #include "vfs.h"
  34 #include "captive/parent-Directory.h"
  35
  36
  37 static gpointer captive_directory_object_parent_class=NULL;
  38
  39
  40 static GnomeVFSResult captive_directory_close(CaptiveDirectoryObject *captive_directory_object);
  41
  42 static void captive_directory_object_finalize(CaptiveDirectoryObject *captive_directory_object)
  43 {
  44         g_return_if_fail(captive_directory_object!=NULL);
  45
  46         captive_directory_close(captive_directory_object);      /* errors ignored */
  47
  48         G_OBJECT_CLASS(captive_directory_object_parent_class)->finalize((GObject *)captive_directory_object);
  49 }
  50
  51
  52 static void captive_directory_object_class_init(CaptiveDirectoryObjectClass *class)
  53 {
  54 GObjectClass *gobject_class=G_OBJECT_CLASS(class);
  55
  56         captive_directory_object_parent_class=g_type_class_ref(G_TYPE_OBJECT);
  57         gobject_class->finalize=(void (*)(GObject *object))captive_directory_object_finalize;
  58 }
  59
  60
  61 static void captive_directory_object_init(CaptiveDirectoryObject *captive_directory_object)
  62 {
  63         captive_directory_object->dir_Handle=NULL;
  64         captive_directory_object->read_first=TRUE;
  65         captive_directory_object->CaptiveDirectoryObject_QueryDirectory_type=
  66                         CaptiveDirectoryObject_QueryDirectory_type_FileIdBothDirInformation;
  67 }
  68
  69
  70 GType captive_directory_object_get_type(void)
  71 {
  72 static GType captive_directory_object_type=0;
  73
  74         if (!captive_directory_object_type) {
  75 static const GTypeInfo captive_directory_object_info={
  76                                 sizeof(CaptiveDirectoryObjectClass),
  77                                 NULL,   /* base_init */
  78                                 NULL,   /* base_finalize */
  79                                 (GClassInitFunc)captive_directory_object_class_init,
  80                                 NULL,   /* class_finalize */
  81                                 NULL,   /* class_data */
  82                                 sizeof(CaptiveDirectoryObject),
  83                                 5,      /* n_preallocs */
  84                                 (GInstanceInitFunc)captive_directory_object_init,
  85                                 };
  86
  87                 captive_directory_object_type=g_type_register_static(G_TYPE_OBJECT,
  88                                 "CaptiveDirectoryObject",&captive_directory_object_info,0);
  89                 }
  90
  91         return captive_directory_object_type;
  92 }
  93
  94
  95 static GnomeVFSResult captive_directory_new_internal
  96                 (CaptiveDirectoryObject *captive_directory_object,const gchar *pathname,gboolean create,guint create_perm)
  97 {
  98 GnomeVFSResult errvfsresult;
  99 OBJECT_ATTRIBUTES dir_ObjectAttributes;
 100 HANDLE dir_Handle;
 101 IO_STATUS_BLOCK dir_IoStatusBlock;
 102 NTSTATUS err;
 103
 104         g_return_val_if_fail(captive_directory_object!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 105         g_return_val_if_fail(pathname!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 106
 107         errvfsresult=captive_ObjectAttributes_init(pathname,&dir_ObjectAttributes);
 108         g_return_val_if_fail(errvfsresult==GNOME_VFS_OK,errvfsresult);
 109
 110         /* wanted: * IoCreateFile()->ObCreateObject(,,,IoFileObjectType)->
 111          * ->(IoFileObjectType->Create==IopCreateFile)()->IoMountVolume()
 112          */
 113         err=IoCreateFile(
 114                         &dir_Handle,    /* FileHandle */
 115                         FILE_LIST_DIRECTORY,    /* DesiredAccess */
 116                         &dir_ObjectAttributes,  /* ObjectAttributes */
 117                         &dir_IoStatusBlock,     /* IoStatusBlock */
 118                         NULL,   /* AllocationSize; ignored for open */
 119                         (!create || create_perm&0200 ? FILE_ATTRIBUTE_NORMAL: FILE_ATTRIBUTE_READONLY), /* FileAttributes; ignored for open */
 120                         (FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE),       /* ShareAccess; 0 means exclusive */
 121                         (!create ? FILE_OPEN : FILE_CREATE),    /* CreateDisposition */
 122                         /* FILE_SYNCHRONOUS_IO_{,NON}ALERT: We need to allow W32 filesystem
 123                          * any waits to not to let it return STATUS_CANT_WAIT us.
 124                          * Alertability should have only effect on asynchronous events
 125                          * from KeWaitForSingleObject() by setting/clearing its parameter 'Alertable'.
 126                          */
 127                         FILE_DIRECTORY_FILE|FILE_SYNCHRONOUS_IO_ALERT,  /* CreateOptions */
 128                         NULL,   /* EaBuffer */
 129                         0,      /* EaLength */
 130                         CreateFileTypeNone,     /* CreateFileType */
 131                         NULL,   /* ExtraCreateParameters */
 132                         0);     /* Options */
 133         g_free(dir_ObjectAttributes.ObjectName);        /* left from captive_gnomevfs_uri_parent_init() */
 134         g_return_val_if_fail(NT_SUCCESS(err)==NT_SUCCESS(dir_IoStatusBlock.Status),GNOME_VFS_ERROR_GENERIC);
 135         if (GNOME_VFS_OK!=(errvfsresult=captive_NTSTATUS_to_GnomeVFSResult(err)))
 136                 return errvfsresult;
 137         g_return_val_if_fail(NT_SUCCESS(err),GNOME_VFS_ERROR_GENERIC);
 138         g_return_val_if_fail(dir_IoStatusBlock.Information
 139                                         ==(!create ? FILE_OPENED : FILE_CREATED),
 140                         GNOME_VFS_ERROR_GENERIC);
 141
 142         captive_directory_object->dir_Handle=dir_Handle;
 143
 144         return GNOME_VFS_OK;
 145 }
 146
 147
 148 GnomeVFSResult captive_directory_new_open(CaptiveDirectoryObject **captive_directory_object_return,
 149                 CaptiveVfsObject *captive_vfs_object,const gchar *pathname)
 150 {
 151 GnomeVFSResult r;
 152 CaptiveDirectoryObject *captive_directory_object;
 153
 154         g_return_val_if_fail(captive_directory_object_return!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 155         g_return_val_if_fail(captive_vfs_object!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 156         g_return_val_if_fail(pathname!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 157
 158         captive_directory_object=g_object_new(
 159                         CAPTIVE_DIRECTORY_TYPE_OBJECT,  /* object_type */
 160                         NULL);  /* first_property_name; FIXME: support properties */
 161         captive_directory_object->dir_Handle=NULL;
 162         captive_directory_object->vfs=captive_vfs_object;
 163         *captive_directory_object_return=captive_directory_object;
 164
 165         if (captive_vfs_object->is_sandbox_parent)
 166                 return captive_sandbox_parent_directory_new_open(captive_directory_object,pathname);
 167
 168         r=captive_directory_new_internal(captive_directory_object,pathname,
 169                         FALSE,  /* create */
 170                         0);     /* create_perm; ignored */
 171
 172         captive_leave();
 173         if (r==GNOME_VFS_OK)
 174                 captive_usecount(+1);
 175         else
 176                 g_object_unref(captive_directory_object);
 177         return r;
 178 }
 179
 180
 181 GnomeVFSResult captive_directory_new_make(CaptiveDirectoryObject **captive_directory_object_return,
 182                 CaptiveVfsObject *captive_vfs_object,const gchar *pathname,guint perm)
 183 {
 184 GnomeVFSResult r;
 185 CaptiveDirectoryObject *captive_directory_object;
 186
 187         g_return_val_if_fail(captive_directory_object_return!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 188         g_return_val_if_fail(captive_vfs_object!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 189         g_return_val_if_fail(pathname!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 190
 191         captive_directory_object=g_object_new(
 192                         CAPTIVE_DIRECTORY_TYPE_OBJECT,  /* object_type */
 193                         NULL);  /* first_property_name; FIXME: support properties */
 194         captive_directory_object->dir_Handle=NULL;
 195         captive_directory_object->vfs=captive_vfs_object;
 196         *captive_directory_object_return=captive_directory_object;
 197
 198         if (captive_vfs_object->is_sandbox_parent)
 199                 return captive_sandbox_parent_directory_new_make(captive_directory_object,pathname,perm);
 200
 201         r=captive_directory_new_internal(captive_directory_object,pathname,
 202                         TRUE,   /* create */
 203                         perm);  /* create_perm; ignored */
 204
 205         captive_leave();
 206         if (r==GNOME_VFS_OK)
 207                 captive_usecount(+1);
 208         else
 209                 g_object_unref(captive_directory_object);
 210         return r;
 211 }
 212
 213
 214 static GnomeVFSResult FileIdBothDirInformation_to_GnomeVFSFileInfo(GnomeVFSFileInfo *file_info,
 215                 FILE_ID_BOTH_DIR_INFORMATION *FileIdBothDirInformation,IO_STATUS_BLOCK *IoStatusBlock)
 216 {
 217 UNICODE_STRING FileName_UnicodeString;
 218 BOOLEAN errBOOLEAN;
 219 ULONG tmp_ULONG;
 220
 221         g_return_val_if_fail(file_info!=NULL,GNOME_VFS_ERROR_GENERIC);
 222         g_return_val_if_fail(FileIdBothDirInformation!=NULL,GNOME_VFS_ERROR_GENERIC);
 223         g_return_val_if_fail(IoStatusBlock!=NULL,GNOME_VFS_ERROR_GENERIC);
 224
 225         g_return_val_if_fail(NT_SUCCESS(IoStatusBlock->Status),GNOME_VFS_ERROR_GENERIC);
 226         /* do not exceed the returned buffer by this record; Redundant now, see below. */
 227         g_assert((gpointer)(((char *)FileIdBothDirInformation)+FileIdBothDirInformation->NextEntryOffset)
 228                         <=(gpointer)(((char *)FileIdBothDirInformation)+IoStatusBlock->Information));
 229         /* '->NextEntryOffset' is ==0 as we used 'ReturnSingleEntry==TRUE' */
 230         g_assert(FileIdBothDirInformation->NextEntryOffset==0);
 231
 232         file_info->valid_fields=0;
 233
 234         FileName_UnicodeString.Length=FileIdBothDirInformation->FileNameLength;
 235         FileName_UnicodeString.MaximumLength=FileIdBothDirInformation->FileNameLength
 236                         +sizeof(*FileIdBothDirInformation->FileName);   /* 0-terminator */
 237         g_assert((gpointer)(((char *)FileIdBothDirInformation->FileName)+FileName_UnicodeString.Length)
 238                         <=(gpointer)(((char *)FileIdBothDirInformation)+IoStatusBlock->Information));
 239                                         /* ensure we fit below '->IoStatusBlock->Information' at least without the 0-terminator */
 240         FileIdBothDirInformation->FileName[FileIdBothDirInformation->FileNameLength
 241                         /sizeof(*FileIdBothDirInformation->FileName)]=0;        /* 0-terminate it */
 242         FileName_UnicodeString.Buffer=FileIdBothDirInformation->FileName;
 243         file_info->name=captive_UnicodeString_to_utf8_malloc(&FileName_UnicodeString);
 244         /* '->name' assumed for 'file_info->valid_fields' */
 245
 246         /* FIXME: What is 'FILE_ATTRIBUTE_NORMAL'? */
 247         switch (FileIdBothDirInformation->FileAttributes & (0
 248                         | FILE_ATTRIBUTE_DIRECTORY
 249                         | FILE_ATTRIBUTE_DEVICE)) {
 250                 case 0:                        file_info->type=GNOME_VFS_FILE_TYPE_REGULAR;   break;
 251                 case FILE_ATTRIBUTE_DIRECTORY: file_info->type=GNOME_VFS_FILE_TYPE_DIRECTORY; break;
 252                 case FILE_ATTRIBUTE_DEVICE:    file_info->type=GNOME_VFS_FILE_TYPE_SOCKET;
 253                         /* or GNOME_VFS_FILE_TYPE_CHARACTER_DEVICE or GNOME_VFS_FILE_TYPE_BLOCK_DEVICE ? */
 254                         break;
 255                 default:                       file_info->type=GNOME_VFS_FILE_TYPE_UNKNOWN;   break;
 256                 }
 257         file_info->valid_fields|=GNOME_VFS_FILE_INFO_FIELDS_TYPE;
 258
 259         /* we use 0600 for r/w files, 0400 for FILE_ATTRIBUTE_READONLY */
 260         file_info->permissions=GNOME_VFS_PERM_USER_READ;
 261         if (file_info->type==GNOME_VFS_FILE_TYPE_DIRECTORY)
 262                 file_info->permissions|=GNOME_VFS_PERM_USER_EXEC;
 263         if (!(FileIdBothDirInformation->FileAttributes & FILE_ATTRIBUTE_READONLY))
 264                 file_info->permissions|=GNOME_VFS_PERM_USER_WRITE;
 265         file_info->valid_fields|=GNOME_VFS_FILE_INFO_FIELDS_PERMISSIONS;
 266
 267         file_info->size=FileIdBothDirInformation->EndOfFile.QuadPart;
 268         file_info->valid_fields|=GNOME_VFS_FILE_INFO_FIELDS_SIZE;
 269
 270         file_info->block_count=FileIdBothDirInformation->AllocationSize.QuadPart/512;
 271         file_info->valid_fields|=GNOME_VFS_FILE_INFO_FIELDS_BLOCK_COUNT;
 272
 273         file_info->flags=GNOME_VFS_FILE_FLAGS_LOCAL;
 274         file_info->valid_fields|=GNOME_VFS_FILE_INFO_FIELDS_FLAGS;
 275
 276         if (FileIdBothDirInformation->LastAccessTime.QuadPart) {        /* it may be 0 if not set */
 277                 errBOOLEAN=RtlTimeToSecondsSince1970(&FileIdBothDirInformation->LastAccessTime,&tmp_ULONG);
 278                 g_assert(errBOOLEAN==TRUE);
 279                 file_info->atime=tmp_ULONG;
 280                 file_info->valid_fields|=GNOME_VFS_FILE_INFO_FIELDS_ATIME;
 281                 }
 282
 283         /* it may be 0 if not set */
 284         if (FileIdBothDirInformation->LastWriteTime.QuadPart || FileIdBothDirInformation->ChangeTime.QuadPart) {
 285                 errBOOLEAN=RtlTimeToSecondsSince1970(
 286                                 /* take the more recent (==bigger) time: */
 287                                 (FileIdBothDirInformation->LastWriteTime.QuadPart > FileIdBothDirInformation->ChangeTime.QuadPart
 288                                                 ? &FileIdBothDirInformation->LastWriteTime : &FileIdBothDirInformation->ChangeTime),
 289                                 &tmp_ULONG);
 290                 g_assert(errBOOLEAN==TRUE);
 291                 file_info->mtime=tmp_ULONG;
 292                 file_info->valid_fields|=GNOME_VFS_FILE_INFO_FIELDS_MTIME;
 293                 }
 294
 295         if (FileIdBothDirInformation->CreationTime.QuadPart) {  /* it may be 0 if not set */
 296                 errBOOLEAN=RtlTimeToSecondsSince1970(&FileIdBothDirInformation->CreationTime,&tmp_ULONG);
 297                 g_assert(errBOOLEAN==TRUE);
 298                 file_info->ctime=tmp_ULONG;
 299                 file_info->valid_fields|=GNOME_VFS_FILE_INFO_FIELDS_CTIME;
 300                 }
 301
 302         return GNOME_VFS_OK;
 303 }
 304
 305
 306 static GnomeVFSResult FileBothDirInformation_to_FileIdBothDirInformation(FILE_ID_BOTH_DIR_INFORMATION *FileIdBothDirInformation,
 307                 FILE_BOTH_DIR_INFORMATION *FileBothDirInformation,IO_STATUS_BLOCK *IoStatusBlock)
 308 {
 309 static LARGE_INTEGER FileId_counter;
 310
 311         g_return_val_if_fail(FileIdBothDirInformation!=NULL,GNOME_VFS_ERROR_GENERIC);
 312         g_return_val_if_fail(FileBothDirInformation!=NULL,GNOME_VFS_ERROR_GENERIC);
 313         g_return_val_if_fail(IoStatusBlock!=NULL,GNOME_VFS_ERROR_GENERIC);
 314
 315         g_return_val_if_fail(NT_SUCCESS(IoStatusBlock->Status),GNOME_VFS_ERROR_GENERIC);
 316         /* do not exceed the returned buffer by this record; Redundant now, see below. */
 317         g_assert((gpointer)(((char *)FileBothDirInformation)+FileBothDirInformation->NextEntryOffset)
 318                         <=(gpointer)(((char *)FileBothDirInformation)+IoStatusBlock->Information));
 319         /* '->NextEntryOffset' is ==0 as we used 'ReturnSingleEntry==TRUE' */
 320         g_assert(FileBothDirInformation->NextEntryOffset==0);
 321
 322         g_assert((gpointer)(((char *)FileBothDirInformation->FileName)+FileBothDirInformation->FileNameLength)
 323                         <=(gpointer)(((char *)FileBothDirInformation)+IoStatusBlock->Information));
 324                                         /* ensure we fit below '->IoStatusBlock->Information' at least without the 0-terminator */
 325         memcpy(FileIdBothDirInformation->FileName,FileBothDirInformation->FileName,
 326                         FileBothDirInformation->FileNameLength);
 327
 328         /* NextEntryOffset already handled */
 329         FileIdBothDirInformation->FileIndex      =FileBothDirInformation->FileIndex;
 330         FileIdBothDirInformation->CreationTime   =FileBothDirInformation->CreationTime;
 331         FileIdBothDirInformation->LastAccessTime =FileBothDirInformation->LastAccessTime;
 332         FileIdBothDirInformation->LastWriteTime  =FileBothDirInformation->LastWriteTime;
 333         FileIdBothDirInformation->ChangeTime     =FileBothDirInformation->ChangeTime;
 334         FileIdBothDirInformation->EndOfFile      =FileBothDirInformation->EndOfFile;
 335         FileIdBothDirInformation->AllocationSize =FileBothDirInformation->AllocationSize;
 336         FileIdBothDirInformation->FileAttributes =FileBothDirInformation->FileAttributes;
 337         FileIdBothDirInformation->FileNameLength =FileBothDirInformation->FileNameLength;
 338         FileIdBothDirInformation->EaSize         =FileBothDirInformation->EaSize;
 339         FileIdBothDirInformation->ShortNameLength=FileBothDirInformation->ShortNameLength;
 340         g_assert(sizeof(FileIdBothDirInformation->ShortName)==sizeof(FileBothDirInformation->ShortName));
 341         memcpy(FileIdBothDirInformation->ShortName,FileBothDirInformation->ShortName,
 342                         sizeof(FileBothDirInformation->ShortName));
 343         /* FIXME: Register filenames for uniqueness;
 344          * Not needed now as 'FileId' field not used by libcaptive anywhere anyway.
 345          */
 346         FileIdBothDirInformation->FileId.QuadPart=FileId_counter.QuadPart++;
 347         /* FileName already handled */
 348
 349         IoStatusBlock->Information=sizeof(*FileIdBothDirInformation)+FileIdBothDirInformation->FileNameLength;
 350         /* '->NextEntryOffset' is ==0 as we used 'ReturnSingleEntry==TRUE' */
 351         FileIdBothDirInformation->NextEntryOffset=0;
 352
 353         return GNOME_VFS_OK;
 354 }
 355
 356
 357 static GnomeVFSResult captive_directory_close(CaptiveDirectoryObject *captive_directory_object)
 358 {
 359 NTSTATUS err;
 360 HANDLE dir_Handle;
 361
 362         g_return_val_if_fail(captive_directory_object!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 363
 364         if (captive_directory_object->vfs->is_sandbox_parent)
 365                 return captive_sandbox_parent_directory_close(captive_directory_object);
 366
 367         if (captive_directory_object->dir_Handle!=NULL) {       /* not yet already closed */
 368                 captive_usecount(-1);   /* close() errors notwithstanding */
 369
 370                 dir_Handle=captive_directory_object->dir_Handle;
 371                 captive_directory_object->dir_Handle=NULL;
 372                 err=NtClose(dir_Handle);
 373                 g_return_val_if_fail(NT_SUCCESS(err),GNOME_VFS_ERROR_GENERIC);
 374                 }
 375
 376         captive_leave();
 377         return GNOME_VFS_OK;
 378 }
 379
 380
 381 GnomeVFSResult captive_directory_read(CaptiveDirectoryObject *captive_directory_object,GnomeVFSFileInfo *file_info)
 382 {
 383 NTSTATUS err;
 384 IO_STATUS_BLOCK dir_IoStatusBlock;
 385 FILE_ID_BOTH_DIR_INFORMATION *FileIdBothDirInformation;
 386 FILE_BOTH_DIR_INFORMATION *FileBothDirInformation;
 387 GnomeVFSResult errvfsresult;
 388
 389         g_return_val_if_fail(captive_directory_object!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 390         g_return_val_if_fail(file_info!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 391
 392         if (captive_directory_object->vfs->is_sandbox_parent)
 393                 return captive_sandbox_parent_directory_read(captive_directory_object,file_info);
 394
 395         g_return_val_if_fail(captive_directory_object->dir_Handle!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 396
 397         FileIdBothDirInformation=(void *)captive_directory_object->QueryDirectory_buf.FileIdBothDirInformation;
 398 retry:
 399         switch (captive_directory_object->CaptiveDirectoryObject_QueryDirectory_type) {
 400
 401                 case CaptiveDirectoryObject_QueryDirectory_type_FileIdBothDirInformation:
 402                         err=NtQueryDirectoryFile(
 403                                         captive_directory_object->dir_Handle,   /* FileHandle */
 404                                         NULL,   /* PEvent; completion signalling; optional */
 405                                         NULL,   /* ApcRoutine; optional */
 406                                         NULL,   /* ApcContext; optional */
 407                                         &dir_IoStatusBlock,     /* IoStatusBlock */
 408                                         (gpointer)captive_directory_object->QueryDirectory_buf.FileIdBothDirInformation,        /* FileInformation */
 409                                         sizeof(captive_directory_object->QueryDirectory_buf.FileIdBothDirInformation)   /* Length */
 410                                                         -sizeof(*FileIdBothDirInformation->FileName),   /* reserve space for 0-terminator */
 411                                         FileIdBothDirectoryInformation, /* FileInformationClass; =>FILE_ID_BOTH_DIR_INFORMATION */
 412                                         TRUE,   /* ReturnSingleEntry */
 413                                         NULL,   /* FileName; wildcards possible; optional */
 414                                         captive_directory_object->read_first);  /* RestartScan */
 415                         if (err==STATUS_NO_SUCH_FILE) {
 416                                 /* 'FileIdBothDirInformation' not supported at least by ext2fsd.sys.
 417                                  * Emulate it from 'FileBothDirectoryInformation' here.
 418                                  */
 419                                 captive_directory_object->CaptiveDirectoryObject_QueryDirectory_type=
 420                                                 CaptiveDirectoryObject_QueryDirectory_type_FileBothDirInformation;
 421                                 goto retry;
 422                                 }
 423
 424                         captive_directory_object->read_first=FALSE;
 425                         if (GNOME_VFS_OK!=(errvfsresult=captive_NTSTATUS_to_GnomeVFSResult(err)))
 426                                 return errvfsresult;
 427                         g_return_val_if_fail(NT_SUCCESS(err),GNOME_VFS_ERROR_GENERIC);
 428                         break;
 429
 430                 case CaptiveDirectoryObject_QueryDirectory_type_FileBothDirInformation:
 431                         FileBothDirInformation=(void *)captive_directory_object->QueryDirectory_buf.FileBothDirInformation;
 432                         /* SL_INDEX_SPECIFIED is forbidden for ext2fsd.sys-V0.10A although
 433                          * IIRC it was required for the native W32 filesystems.
 434                          * Fortunately 'FileBothDirInformation' is just a workaround for ext2fsd.sys-V0.10A
 435                          * which is not used for the native W32 filesystems and therefore it should be safe.
 436                          * WARNING: Hack with 'FileIndex==0' to prevent SL_INDEX_SPECIFIED is just libcaptive
 437                          * specific hack of reactos! See also NtQueryDirectoryFile().
 438                          */
 439                         FileBothDirInformation->FileIndex=0;
 440                         err=NtQueryDirectoryFile(
 441                                         captive_directory_object->dir_Handle,   /* FileHandle */
 442                                         NULL,   /* PEvent; completion signalling; optional */
 443                                         NULL,   /* ApcRoutine; optional */
 444                                         NULL,   /* ApcContext; optional */
 445                                         &dir_IoStatusBlock,     /* IoStatusBlock */
 446                                         (gpointer)captive_directory_object->QueryDirectory_buf.FileBothDirInformation,  /* FileInformation */
 447                                         sizeof(captive_directory_object->QueryDirectory_buf.FileBothDirInformation)     /* Length */
 448                                                         -sizeof(*FileBothDirInformation->FileName),     /* reserve space for 0-terminator */
 449                                         FileBothDirectoryInformation,   /* FileInformationClass; =>FILE_BOTH_DIR_INFORMATION */
 450                                         TRUE,   /* ReturnSingleEntry */
 451                                         NULL,   /* FileName; wildcards possible; optional */
 452                                         captive_directory_object->read_first);  /* RestartScan */
 453
 454                         captive_directory_object->read_first=FALSE;
 455                         if (GNOME_VFS_OK!=(errvfsresult=captive_NTSTATUS_to_GnomeVFSResult(err)))
 456                                 return errvfsresult;
 457                         g_return_val_if_fail(NT_SUCCESS(err),GNOME_VFS_ERROR_GENERIC);
 458
 459                         errvfsresult=FileBothDirInformation_to_FileIdBothDirInformation(FileIdBothDirInformation,FileBothDirInformation,
 460                                         &dir_IoStatusBlock);
 461                         g_return_val_if_fail(errvfsresult==GNOME_VFS_OK,errvfsresult);
 462                         break;
 463
 464                 default: g_assert_not_reached();
 465                 }
 466
 467         errvfsresult=FileIdBothDirInformation_to_GnomeVFSFileInfo(file_info,FileIdBothDirInformation,
 468                         &dir_IoStatusBlock);
 469         g_return_val_if_fail(errvfsresult==GNOME_VFS_OK,errvfsresult);
 470
 471         captive_leave();
 472         return GNOME_VFS_OK;
 473 }
 474
 475
 476 GnomeVFSResult captive_directory_remove(CaptiveDirectoryObject *captive_directory_object)
 477 {
 478 NTSTATUS err;
 479 FILE_DISPOSITION_INFORMATION FileDispositionInformation_struct;
 480 IO_STATUS_BLOCK dir_IoStatusBlock;
 481 GnomeVFSResult errvfsresult;
 482
 483         g_return_val_if_fail(captive_directory_object!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 484
 485         if (captive_directory_object->vfs->is_sandbox_parent)
 486                 return captive_sandbox_parent_directory_remove(captive_directory_object);
 487
 488         g_return_val_if_fail(captive_directory_object->dir_Handle!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 489
 490         FileDispositionInformation_struct.DoDeleteFile=TRUE;
 491
 492         err=NtSetInformationFile(
 493                         captive_directory_object->dir_Handle,   /* FileHandle */
 494                         &dir_IoStatusBlock,     /* IoStatusBlock */
 495                         &FileDispositionInformation_struct,     /* FileInformation */
 496                         sizeof(FileDispositionInformation_struct),      /* Length */
 497                         FileDispositionInformation);    /* FileInformationClass */
 498         if (GNOME_VFS_OK!=(errvfsresult=captive_NTSTATUS_to_GnomeVFSResult(err)))
 499                 return errvfsresult;
 500         g_return_val_if_fail(NT_SUCCESS(err),GNOME_VFS_ERROR_GENERIC);
 501
 502         captive_leave();
 503         return GNOME_VFS_OK;
 504 }