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