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                 *captive_directory_object_return=NULL;
 178                 }
 179         return r;
 180 }
 181
 182
 183 GnomeVFSResult captive_directory_new_make(CaptiveDirectoryObject **captive_directory_object_return,
 184                 CaptiveVfsObject *captive_vfs_object,const gchar *pathname,guint perm)
 185 {
 186 GnomeVFSResult r;
 187 CaptiveDirectoryObject *captive_directory_object;
 188
 189         g_return_val_if_fail(captive_directory_object_return!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 190         g_return_val_if_fail(captive_vfs_object!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 191         g_return_val_if_fail(pathname!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 192
 193         captive_directory_object=g_object_new(
 194                         CAPTIVE_DIRECTORY_TYPE_OBJECT,  /* object_type */
 195                         NULL);  /* first_property_name; FIXME: support properties */
 196         captive_directory_object->dir_Handle=NULL;
 197         captive_directory_object->vfs=captive_vfs_object;
 198         *captive_directory_object_return=captive_directory_object;
 199
 200         if (captive_vfs_object->is_sandbox_parent)
 201                 return captive_sandbox_parent_directory_new_make(captive_directory_object,pathname,perm);
 202
 203         r=captive_directory_new_internal(captive_directory_object,pathname,
 204                         TRUE,   /* create */
 205                         perm);  /* create_perm; ignored */
 206
 207         captive_leave();
 208         if (r==GNOME_VFS_OK)
 209                 captive_usecount(+1);
 210         else {
 211                 g_object_unref(captive_directory_object);
 212                 *captive_directory_object_return=NULL;
 213                 }
 214         return r;
 215 }
 216
 217
 218 static GnomeVFSResult FileIdBothDirInformation_to_GnomeVFSFileInfo(GnomeVFSFileInfo *file_info,
 219                 FILE_ID_BOTH_DIR_INFORMATION *FileIdBothDirInformation,IO_STATUS_BLOCK *IoStatusBlock)
 220 {
 221 UNICODE_STRING FileName_UnicodeString;
 222 BOOLEAN errBOOLEAN;
 223 ULONG tmp_ULONG;
 224
 225         g_return_val_if_fail(file_info!=NULL,GNOME_VFS_ERROR_GENERIC);
 226         g_return_val_if_fail(FileIdBothDirInformation!=NULL,GNOME_VFS_ERROR_GENERIC);
 227         g_return_val_if_fail(IoStatusBlock!=NULL,GNOME_VFS_ERROR_GENERIC);
 228
 229         g_return_val_if_fail(NT_SUCCESS(IoStatusBlock->Status),GNOME_VFS_ERROR_GENERIC);
 230         /* do not exceed the returned buffer by this record; Redundant now, see below. */
 231         g_assert((gpointer)(((char *)FileIdBothDirInformation)+FileIdBothDirInformation->NextEntryOffset)
 232                         <=(gpointer)(((char *)FileIdBothDirInformation)+IoStatusBlock->Information));
 233         /* '->NextEntryOffset' is ==0 as we used 'ReturnSingleEntry==TRUE' */
 234         g_assert(FileIdBothDirInformation->NextEntryOffset==0);
 235
 236         file_info->valid_fields=0;
 237
 238         FileName_UnicodeString.Length=FileIdBothDirInformation->FileNameLength;
 239         FileName_UnicodeString.MaximumLength=FileIdBothDirInformation->FileNameLength
 240                         +sizeof(*FileIdBothDirInformation->FileName);   /* 0-terminator */
 241         g_assert((gpointer)(((char *)FileIdBothDirInformation->FileName)+FileName_UnicodeString.Length)
 242                         <=(gpointer)(((char *)FileIdBothDirInformation)+IoStatusBlock->Information));
 243                                         /* ensure we fit below '->IoStatusBlock->Information' at least without the 0-terminator */
 244         FileIdBothDirInformation->FileName[FileIdBothDirInformation->FileNameLength
 245                         /sizeof(*FileIdBothDirInformation->FileName)]=0;        /* 0-terminate it */
 246         FileName_UnicodeString.Buffer=FileIdBothDirInformation->FileName;
 247         file_info->name=captive_UnicodeString_to_utf8_malloc(&FileName_UnicodeString);
 248         /* '->name' assumed for 'file_info->valid_fields' */
 249
 250         /* FIXME: What is 'FILE_ATTRIBUTE_NORMAL'? */
 251         switch (FileIdBothDirInformation->FileAttributes & (0
 252                         | FILE_ATTRIBUTE_DIRECTORY
 253                         | FILE_ATTRIBUTE_DEVICE)) {
 254                 case 0:                        file_info->type=GNOME_VFS_FILE_TYPE_REGULAR;   break;
 255                 case FILE_ATTRIBUTE_DIRECTORY: file_info->type=GNOME_VFS_FILE_TYPE_DIRECTORY; break;
 256                 case FILE_ATTRIBUTE_DEVICE:    file_info->type=GNOME_VFS_FILE_TYPE_SOCKET;
 257                         /* or GNOME_VFS_FILE_TYPE_CHARACTER_DEVICE or GNOME_VFS_FILE_TYPE_BLOCK_DEVICE ? */
 258                         break;
 259                 default:                       file_info->type=GNOME_VFS_FILE_TYPE_UNKNOWN;   break;
 260                 }
 261         file_info->valid_fields|=GNOME_VFS_FILE_INFO_FIELDS_TYPE;
 262
 263         /* we use 0600 for r/w files, 0400 for FILE_ATTRIBUTE_READONLY */
 264         file_info->permissions=GNOME_VFS_PERM_USER_READ;
 265         if (file_info->type==GNOME_VFS_FILE_TYPE_DIRECTORY)
 266                 file_info->permissions|=GNOME_VFS_PERM_USER_EXEC;
 267         if (!(FileIdBothDirInformation->FileAttributes & FILE_ATTRIBUTE_READONLY))
 268                 file_info->permissions|=GNOME_VFS_PERM_USER_WRITE;
 269         file_info->valid_fields|=GNOME_VFS_FILE_INFO_FIELDS_PERMISSIONS;
 270
 271         file_info->size=FileIdBothDirInformation->EndOfFile.QuadPart;
 272         file_info->valid_fields|=GNOME_VFS_FILE_INFO_FIELDS_SIZE;
 273
 274         file_info->block_count=FileIdBothDirInformation->AllocationSize.QuadPart/512;
 275         file_info->valid_fields|=GNOME_VFS_FILE_INFO_FIELDS_BLOCK_COUNT;
 276
 277         file_info->flags=GNOME_VFS_FILE_FLAGS_LOCAL;
 278         file_info->valid_fields|=GNOME_VFS_FILE_INFO_FIELDS_FLAGS;
 279
 280         if (FileIdBothDirInformation->LastAccessTime.QuadPart) {        /* it may be 0 if not set */
 281                 errBOOLEAN=RtlTimeToSecondsSince1970(&FileIdBothDirInformation->LastAccessTime,&tmp_ULONG);
 282                 g_assert(errBOOLEAN==TRUE);
 283                 file_info->atime=tmp_ULONG;
 284                 file_info->valid_fields|=GNOME_VFS_FILE_INFO_FIELDS_ATIME;
 285                 }
 286
 287         /* it may be 0 if not set */
 288         if (FileIdBothDirInformation->LastWriteTime.QuadPart || FileIdBothDirInformation->ChangeTime.QuadPart) {
 289                 errBOOLEAN=RtlTimeToSecondsSince1970(
 290                                 /* take the more recent (==bigger) time: */
 291                                 (FileIdBothDirInformation->LastWriteTime.QuadPart > FileIdBothDirInformation->ChangeTime.QuadPart
 292                                                 ? &FileIdBothDirInformation->LastWriteTime : &FileIdBothDirInformation->ChangeTime),
 293                                 &tmp_ULONG);
 294                 g_assert(errBOOLEAN==TRUE);
 295                 file_info->mtime=tmp_ULONG;
 296                 file_info->valid_fields|=GNOME_VFS_FILE_INFO_FIELDS_MTIME;
 297                 }
 298
 299         if (FileIdBothDirInformation->CreationTime.QuadPart) {  /* it may be 0 if not set */
 300                 errBOOLEAN=RtlTimeToSecondsSince1970(&FileIdBothDirInformation->CreationTime,&tmp_ULONG);
 301                 g_assert(errBOOLEAN==TRUE);
 302                 file_info->ctime=tmp_ULONG;
 303                 file_info->valid_fields|=GNOME_VFS_FILE_INFO_FIELDS_CTIME;
 304                 }
 305
 306         return GNOME_VFS_OK;
 307 }
 308
 309
 310 static GnomeVFSResult FileBothDirInformation_to_FileIdBothDirInformation(FILE_ID_BOTH_DIR_INFORMATION *FileIdBothDirInformation,
 311                 FILE_BOTH_DIR_INFORMATION *FileBothDirInformation,IO_STATUS_BLOCK *IoStatusBlock)
 312 {
 313 static LARGE_INTEGER FileId_counter;
 314
 315         g_return_val_if_fail(FileIdBothDirInformation!=NULL,GNOME_VFS_ERROR_GENERIC);
 316         g_return_val_if_fail(FileBothDirInformation!=NULL,GNOME_VFS_ERROR_GENERIC);
 317         g_return_val_if_fail(IoStatusBlock!=NULL,GNOME_VFS_ERROR_GENERIC);
 318
 319         g_return_val_if_fail(NT_SUCCESS(IoStatusBlock->Status),GNOME_VFS_ERROR_GENERIC);
 320         /* do not exceed the returned buffer by this record; Redundant now, see below. */
 321         g_assert((gpointer)(((char *)FileBothDirInformation)+FileBothDirInformation->NextEntryOffset)
 322                         <=(gpointer)(((char *)FileBothDirInformation)+IoStatusBlock->Information));
 323         /* '->NextEntryOffset' is ==0 as we used 'ReturnSingleEntry==TRUE' */
 324         g_assert(FileBothDirInformation->NextEntryOffset==0);
 325
 326         g_assert((gpointer)(((char *)FileBothDirInformation->FileName)+FileBothDirInformation->FileNameLength)
 327                         <=(gpointer)(((char *)FileBothDirInformation)+IoStatusBlock->Information));
 328                                         /* ensure we fit below '->IoStatusBlock->Information' at least without the 0-terminator */
 329         memcpy(FileIdBothDirInformation->FileName,FileBothDirInformation->FileName,
 330                         FileBothDirInformation->FileNameLength);
 331
 332         /* NextEntryOffset already handled */
 333         FileIdBothDirInformation->FileIndex      =FileBothDirInformation->FileIndex;
 334         FileIdBothDirInformation->CreationTime   =FileBothDirInformation->CreationTime;
 335         FileIdBothDirInformation->LastAccessTime =FileBothDirInformation->LastAccessTime;
 336         FileIdBothDirInformation->LastWriteTime  =FileBothDirInformation->LastWriteTime;
 337         FileIdBothDirInformation->ChangeTime     =FileBothDirInformation->ChangeTime;
 338         FileIdBothDirInformation->EndOfFile      =FileBothDirInformation->EndOfFile;
 339         FileIdBothDirInformation->AllocationSize =FileBothDirInformation->AllocationSize;
 340         FileIdBothDirInformation->FileAttributes =FileBothDirInformation->FileAttributes;
 341         FileIdBothDirInformation->FileNameLength =FileBothDirInformation->FileNameLength;
 342         FileIdBothDirInformation->EaSize         =FileBothDirInformation->EaSize;
 343         FileIdBothDirInformation->ShortNameLength=FileBothDirInformation->ShortNameLength;
 344         g_assert(sizeof(FileIdBothDirInformation->ShortName)==sizeof(FileBothDirInformation->ShortName));
 345         memcpy(FileIdBothDirInformation->ShortName,FileBothDirInformation->ShortName,
 346                         sizeof(FileBothDirInformation->ShortName));
 347         /* FIXME: Register filenames for uniqueness;
 348          * Not needed now as 'FileId' field not used by libcaptive anywhere anyway.
 349          */
 350         FileIdBothDirInformation->FileId.QuadPart=FileId_counter.QuadPart++;
 351         /* FileName already handled */
 352
 353         IoStatusBlock->Information=sizeof(*FileIdBothDirInformation)+FileIdBothDirInformation->FileNameLength;
 354         /* '->NextEntryOffset' is ==0 as we used 'ReturnSingleEntry==TRUE' */
 355         FileIdBothDirInformation->NextEntryOffset=0;
 356
 357         return GNOME_VFS_OK;
 358 }
 359
 360
 361 static GnomeVFSResult captive_directory_close(CaptiveDirectoryObject *captive_directory_object)
 362 {
 363 NTSTATUS err;
 364 HANDLE dir_Handle;
 365
 366         g_return_val_if_fail(captive_directory_object!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 367
 368         if (captive_directory_object->vfs->is_sandbox_parent)
 369                 return captive_sandbox_parent_directory_close(captive_directory_object);
 370
 371         if (captive_directory_object->dir_Handle!=NULL) {       /* not yet already closed */
 372                 captive_usecount(-1);   /* close() errors notwithstanding */
 373
 374                 dir_Handle=captive_directory_object->dir_Handle;
 375                 captive_directory_object->dir_Handle=NULL;
 376                 err=NtClose(dir_Handle);
 377                 g_return_val_if_fail(NT_SUCCESS(err),GNOME_VFS_ERROR_GENERIC);
 378                 }
 379
 380         captive_leave();
 381         return GNOME_VFS_OK;
 382 }
 383
 384
 385 GnomeVFSResult captive_directory_read(CaptiveDirectoryObject *captive_directory_object,GnomeVFSFileInfo *file_info)
 386 {
 387 NTSTATUS err;
 388 IO_STATUS_BLOCK dir_IoStatusBlock;
 389 FILE_ID_BOTH_DIR_INFORMATION *FileIdBothDirInformation;
 390 FILE_BOTH_DIR_INFORMATION *FileBothDirInformation;
 391 GnomeVFSResult errvfsresult;
 392
 393         g_return_val_if_fail(captive_directory_object!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 394         g_return_val_if_fail(file_info!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 395
 396         if (captive_directory_object->vfs->is_sandbox_parent)
 397                 return captive_sandbox_parent_directory_read(captive_directory_object,file_info);
 398
 399         g_return_val_if_fail(captive_directory_object->dir_Handle!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 400
 401         FileIdBothDirInformation=(void *)captive_directory_object->QueryDirectory_buf.FileIdBothDirInformation;
 402 retry:
 403         switch (captive_directory_object->CaptiveDirectoryObject_QueryDirectory_type) {
 404
 405                 case CaptiveDirectoryObject_QueryDirectory_type_FileIdBothDirInformation:
 406                         err=NtQueryDirectoryFile(
 407                                         captive_directory_object->dir_Handle,   /* FileHandle */
 408                                         NULL,   /* PEvent; completion signalling; optional */
 409                                         NULL,   /* ApcRoutine; optional */
 410                                         NULL,   /* ApcContext; optional */
 411                                         &dir_IoStatusBlock,     /* IoStatusBlock */
 412                                         (gpointer)captive_directory_object->QueryDirectory_buf.FileIdBothDirInformation,        /* FileInformation */
 413                                         sizeof(captive_directory_object->QueryDirectory_buf.FileIdBothDirInformation)   /* Length */
 414                                                         -sizeof(*FileIdBothDirInformation->FileName),   /* reserve space for 0-terminator */
 415                                         FileIdBothDirectoryInformation, /* FileInformationClass; =>FILE_ID_BOTH_DIR_INFORMATION */
 416                                         TRUE,   /* ReturnSingleEntry */
 417                                         NULL,   /* FileName; wildcards possible; optional */
 418                                         captive_directory_object->read_first);  /* RestartScan */
 419                         if (err==STATUS_NO_SUCH_FILE) {
 420                                 /* 'FileIdBothDirInformation' not supported at least by ext2fsd.sys.
 421                                  * Emulate it from 'FileBothDirectoryInformation' here.
 422                                  */
 423                                 captive_directory_object->CaptiveDirectoryObject_QueryDirectory_type=
 424                                                 CaptiveDirectoryObject_QueryDirectory_type_FileBothDirInformation;
 425                                 goto retry;
 426                                 }
 427
 428                         captive_directory_object->read_first=FALSE;
 429                         if (GNOME_VFS_OK!=(errvfsresult=captive_NTSTATUS_to_GnomeVFSResult(err)))
 430                                 return errvfsresult;
 431                         g_return_val_if_fail(NT_SUCCESS(err),GNOME_VFS_ERROR_GENERIC);
 432                         break;
 433
 434                 case CaptiveDirectoryObject_QueryDirectory_type_FileBothDirInformation:
 435                         FileBothDirInformation=(void *)captive_directory_object->QueryDirectory_buf.FileBothDirInformation;
 436                         /* SL_INDEX_SPECIFIED is forbidden for ext2fsd.sys-V0.10A although
 437                          * IIRC it was required for the native W32 filesystems.
 438                          * Fortunately 'FileBothDirInformation' is just a workaround for ext2fsd.sys-V0.10A
 439                          * which is not used for the native W32 filesystems and therefore it should be safe.
 440                          * WARNING: Hack with 'FileIndex==0' to prevent SL_INDEX_SPECIFIED is just libcaptive
 441                          * specific hack of reactos! See also NtQueryDirectoryFile().
 442                          */
 443                         FileBothDirInformation->FileIndex=0;
 444                         err=NtQueryDirectoryFile(
 445                                         captive_directory_object->dir_Handle,   /* FileHandle */
 446                                         NULL,   /* PEvent; completion signalling; optional */
 447                                         NULL,   /* ApcRoutine; optional */
 448                                         NULL,   /* ApcContext; optional */
 449                                         &dir_IoStatusBlock,     /* IoStatusBlock */
 450                                         (gpointer)captive_directory_object->QueryDirectory_buf.FileBothDirInformation,  /* FileInformation */
 451                                         sizeof(captive_directory_object->QueryDirectory_buf.FileBothDirInformation)     /* Length */
 452                                                         -sizeof(*FileBothDirInformation->FileName),     /* reserve space for 0-terminator */
 453                                         FileBothDirectoryInformation,   /* FileInformationClass; =>FILE_BOTH_DIR_INFORMATION */
 454                                         TRUE,   /* ReturnSingleEntry */
 455                                         NULL,   /* FileName; wildcards possible; optional */
 456                                         captive_directory_object->read_first);  /* RestartScan */
 457
 458                         captive_directory_object->read_first=FALSE;
 459                         if (GNOME_VFS_OK!=(errvfsresult=captive_NTSTATUS_to_GnomeVFSResult(err))) {
 460                                 /* Do not reset 'read_first' on 'STATUS_NO_SUCH_FILE' to leave us stuck at EOF - GnomeVFS behaves that way. */
 461                                 return errvfsresult;
 462                                 }
 463                         g_return_val_if_fail(NT_SUCCESS(err),GNOME_VFS_ERROR_GENERIC);
 464
 465                         errvfsresult=FileBothDirInformation_to_FileIdBothDirInformation(FileIdBothDirInformation,FileBothDirInformation,
 466                                         &dir_IoStatusBlock);
 467                         g_return_val_if_fail(errvfsresult==GNOME_VFS_OK,errvfsresult);
 468                         break;
 469
 470                 default: g_assert_not_reached();
 471                 }
 472
 473         errvfsresult=FileIdBothDirInformation_to_GnomeVFSFileInfo(file_info,FileIdBothDirInformation,
 474                         &dir_IoStatusBlock);
 475         g_return_val_if_fail(errvfsresult==GNOME_VFS_OK,errvfsresult);
 476
 477         captive_leave();
 478         return GNOME_VFS_OK;
 479 }
 480
 481
 482 GnomeVFSResult captive_directory_remove(CaptiveDirectoryObject *captive_directory_object)
 483 {
 484 NTSTATUS err;
 485 FILE_DISPOSITION_INFORMATION FileDispositionInformation_struct;
 486 IO_STATUS_BLOCK dir_IoStatusBlock;
 487 GnomeVFSResult errvfsresult;
 488
 489         g_return_val_if_fail(captive_directory_object!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 490
 491         if (captive_directory_object->vfs->is_sandbox_parent)
 492                 return captive_sandbox_parent_directory_remove(captive_directory_object);
 493
 494         g_return_val_if_fail(captive_directory_object->dir_Handle!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 495
 496         FileDispositionInformation_struct.DoDeleteFile=TRUE;
 497
 498         err=NtSetInformationFile(
 499                         captive_directory_object->dir_Handle,   /* FileHandle */
 500                         &dir_IoStatusBlock,     /* IoStatusBlock */
 501                         &FileDispositionInformation_struct,     /* FileInformation */
 502                         sizeof(FileDispositionInformation_struct),      /* Length */
 503                         FileDispositionInformation);    /* FileInformationClass */
 504         if (GNOME_VFS_OK!=(errvfsresult=captive_NTSTATUS_to_GnomeVFSResult(err)))
 505                 return errvfsresult;
 506         g_return_val_if_fail(NT_SUCCESS(err),GNOME_VFS_ERROR_GENERIC);
 507
 508         captive_leave();
 509         return GNOME_VFS_OK;
 510 }