src/libcaptive/client/file-slave.c

   1 /* $Id$
   2  * captive vfs 'file' 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 "file-slave.h" /* self */
  23 #include "captive/client-file.h"        /* for CaptiveFileObject */
  24 #include "file.h"       /* for CaptiveFileObject priv */
  25 #include "directory.h"
  26 #include "lib.h"
  27 #include <glib/gmessages.h>
  28 #include "captive/unicode.h"
  29 #include "reactos/ntos/types.h" /* for HANDLE */
  30 #include "reactos/ddk/iotypes.h"        /* for IO_STATUS_BLOCK */
  31 #include "reactos/ddk/iofuncs.h"        /* for IoCreateFile() */
  32 #include "result.h"
  33 #include "captive/client-directory.h"
  34 #include "reactos/ddk/obfuncs.h"        /* for ObReferenceObjectByHandle() */
  35 #include "captive/macros.h"
  36 #include "captive/leave.h"
  37 #include "captive/usecount.h"
  38 #include "vfs.h"
  39 #include "vfs-slave.h"
  40
  41
  42 /* Config: */
  43 #define MAX_FILE_WRITTEN 0x100000       /* FIXME: Workaround memory consumption for non-journalled fastfat.sys */
  44
  45
  46 struct _CaptiveFileSlaveObject {
  47         CaptiveFileObject parent_instance;
  48
  49         /*< private >*/
  50         HANDLE file_Handle;
  51         GnomeVFSFileOffset offset;
  52         };
  53 struct _CaptiveFileSlaveObjectClass {
  54         CaptiveFileObjectClass parent_class;
  55         };
  56
  57
  58 static gpointer captive_file_slave_object_parent_class=NULL;
  59
  60
  61 static GnomeVFSResult captive_file_slave_close(CaptiveFileObject *captive_file_object);
  62 static GnomeVFSResult captive_file_slave_read(CaptiveFileObject *captive_file_object,
  63                 gpointer buffer,GnomeVFSFileSize num_bytes,GnomeVFSFileSize *bytes_read_return);
  64 static GnomeVFSResult captive_file_slave_write(CaptiveFileObject *captive_file_object,
  65                 gconstpointer buffer,GnomeVFSFileSize num_bytes,GnomeVFSFileSize *bytes_written_return);
  66 static GnomeVFSResult captive_file_slave_seek
  67                 (CaptiveFileObject *captive_file_object,GnomeVFSSeekPosition whence,GnomeVFSFileOffset offset);
  68 static GnomeVFSResult captive_file_slave_tell(CaptiveFileObject *captive_file_object,GnomeVFSFileOffset *offset_return);
  69 static GnomeVFSResult captive_file_slave_remove(CaptiveFileObject *captive_file_object);
  70 static GnomeVFSResult captive_file_slave_file_info_get
  71                 (CaptiveFileObject *captive_file_object,GnomeVFSFileInfo *file_info);
  72 static GnomeVFSResult captive_file_slave_file_info_set
  73                 (CaptiveFileObject *captive_file_object,const GnomeVFSFileInfo *info,GnomeVFSSetFileInfoMask mask);
  74 static GnomeVFSResult captive_file_slave_truncate(CaptiveFileObject *captive_file_object,GnomeVFSFileSize file_size);
  75 static GnomeVFSResult captive_file_slave_move
  76                 (CaptiveFileObject *captive_file_object_old,const gchar *pathname_new,gboolean force_replace);
  77
  78
  79 static void captive_file_slave_object_finalize(CaptiveFileSlaveObject *captive_file_slave_object)
  80 {
  81         g_return_if_fail(captive_file_slave_object!=NULL);
  82
  83         captive_file_slave_close(CAPTIVE_FILE_OBJECT(captive_file_slave_object));       /* errors ignored */
  84
  85         G_OBJECT_CLASS(captive_file_slave_object_parent_class)->finalize((GObject *)captive_file_slave_object);
  86 }
  87
  88
  89 static void captive_file_slave_object_class_init(CaptiveFileSlaveObjectClass *class)
  90 {
  91 GObjectClass *gobject_class=G_OBJECT_CLASS(class);
  92 CaptiveFileObjectClass *captive_file_object_class=CAPTIVE_FILE_OBJECT_CLASS(class);
  93
  94         captive_file_slave_object_parent_class=g_type_class_ref(g_type_parent(G_TYPE_FROM_CLASS(class)));
  95         gobject_class->finalize=(void (*)(GObject *object))captive_file_slave_object_finalize;
  96
  97         captive_file_object_class->read=captive_file_slave_read;
  98         captive_file_object_class->write=captive_file_slave_write;
  99         captive_file_object_class->seek=captive_file_slave_seek;
 100         captive_file_object_class->tell=captive_file_slave_tell;
 101         captive_file_object_class->remove=captive_file_slave_remove;
 102         captive_file_object_class->file_info_get=captive_file_slave_file_info_get;
 103         captive_file_object_class->file_info_set=captive_file_slave_file_info_set;
 104         captive_file_object_class->truncate=captive_file_slave_truncate;
 105         captive_file_object_class->move=captive_file_slave_move;
 106 }
 107
 108
 109 static void captive_file_slave_object_init(CaptiveFileSlaveObject *captive_file_slave_object)
 110 {
 111         captive_file_slave_object->file_Handle=NULL;
 112 }
 113
 114
 115 GType captive_file_slave_object_get_type(void)
 116 {
 117 static GType captive_file_slave_object_type=0;
 118
 119         if (!captive_file_slave_object_type) {
 120 static const GTypeInfo captive_file_slave_object_info={
 121                                 sizeof(CaptiveFileSlaveObjectClass),
 122                                 NULL,   /* base_init */
 123                                 NULL,   /* base_finalize */
 124                                 (GClassInitFunc)captive_file_slave_object_class_init,
 125                                 NULL,   /* class_finalize */
 126                                 NULL,   /* class_data */
 127                                 sizeof(CaptiveFileSlaveObject),
 128                                 5,      /* n_preallocs */
 129                                 (GInstanceInitFunc)captive_file_slave_object_init,
 130                                 };
 131
 132                 captive_file_slave_object_type=g_type_register_static(CAPTIVE_FILE_TYPE_OBJECT,
 133                                 "CaptiveFileSlaveObject",&captive_file_slave_object_info,0);
 134                 }
 135
 136         return captive_file_slave_object_type;
 137 }
 138
 139
 140 static GnomeVFSResult captive_file_slave_new_internal(CaptiveFileSlaveObject *captive_file_slave_object,
 141                 const gchar *pathname,GnomeVFSOpenMode mode,gboolean create,gboolean create_exclusive,guint create_perm)
 142 {
 143 IO_STATUS_BLOCK file_IoStatusBlock;
 144 GnomeVFSResult errvfsresult;
 145 OBJECT_ATTRIBUTES file_ObjectAttributes;
 146 HANDLE file_Handle;
 147 NTSTATUS err;
 148
 149         g_return_val_if_fail(captive_file_slave_object!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 150         g_return_val_if_fail(pathname!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 151
 152         errvfsresult=captive_ObjectAttributes_init(pathname,&file_ObjectAttributes);
 153         g_return_val_if_fail(errvfsresult==GNOME_VFS_OK,errvfsresult);
 154
 155         /* open */
 156         err=IoCreateFile(
 157                         &file_Handle,   /* FileHandle */
 158                         0
 159                                         |(!(mode&GNOME_VFS_OPEN_READ ) ? 0 : FILE_READ_DATA)
 160                                         |(!(mode&GNOME_VFS_OPEN_WRITE) ? 0 : FILE_WRITE_DATA | FILE_APPEND_DATA | FILE_WRITE_ATTRIBUTES)
 161                                         |(  mode!=0                    ? 0 : FILE_READ_ATTRIBUTES)
 162                                         ,       /* DesiredAccess */
 163                         &file_ObjectAttributes, /* ObjectAttributes */
 164                         &file_IoStatusBlock,    /* IoStatusBlock */
 165                         NULL,   /* AllocationSize; ignored for open */
 166                         (!create || create_perm&0200 ? FILE_ATTRIBUTE_NORMAL: FILE_ATTRIBUTE_READONLY), /* FileAttributes; ignored for open */
 167                         (!create || !create_exclusive   /* ShareAccess; 0 means exclusive */
 168                                         ? (FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE)
 169                                         : 0),
 170                         (!create ? FILE_OPEN : FILE_CREATE),    /* CreateDisposition */
 171                         /* FILE_SYNCHRONOUS_IO_{,NON}ALERT: We need to allow W32 filesystem
 172                                  * any waits to not to let it return STATUS_CANT_WAIT us.
 173                                  * Alertability should have only effect on asynchronous events
 174                                  * from KeWaitForSingleObject() by setting/clearing its parameter 'Alertable'.
 175                                  */
 176                         FILE_SYNCHRONOUS_IO_ALERT,      /* CreateOptions */
 177                         NULL,   /* EaBuffer */
 178                         0,      /* EaLength */
 179                         CreateFileTypeNone,     /* CreateFileType */
 180                         NULL,   /* ExtraCreateParameters */
 181                         0);     /* Options */
 182         g_free(file_ObjectAttributes.ObjectName);       /* left from captive_file_slave_uri_parent_init() */
 183         g_return_val_if_fail(NT_SUCCESS(err)==NT_SUCCESS(file_IoStatusBlock.Status),GNOME_VFS_ERROR_GENERIC);
 184         if (GNOME_VFS_OK!=(errvfsresult=captive_NTSTATUS_to_GnomeVFSResult(err)))
 185                 return errvfsresult;
 186         g_return_val_if_fail(NT_SUCCESS(err),GNOME_VFS_ERROR_GENERIC);
 187         g_return_val_if_fail(file_IoStatusBlock.Information
 188                                         ==(!create ? FILE_OPENED : FILE_CREATED),
 189                         GNOME_VFS_ERROR_GENERIC);
 190
 191         captive_file_slave_object->file_Handle=file_Handle;
 192
 193         return GNOME_VFS_OK;
 194 }
 195
 196
 197 GnomeVFSResult captive_file_slave_new_open(CaptiveFileObject **captive_file_object_return,
 198                 CaptiveVfsObject *captive_vfs_object,const gchar *pathname,GnomeVFSOpenMode mode)
 199 {
 200 GnomeVFSResult r;
 201 CaptiveFileSlaveObject *captive_file_slave_object;
 202
 203         g_return_val_if_fail(captive_file_object_return!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 204         g_return_val_if_fail(CAPTIVE_VFS_SLAVE_IS_OBJECT(captive_vfs_object),GNOME_VFS_ERROR_BAD_PARAMETERS);
 205         g_return_val_if_fail(pathname!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 206
 207         captive_file_slave_object=g_object_new(
 208                         CAPTIVE_FILE_SLAVE_TYPE_OBJECT, /* object_type */
 209                         NULL);  /* first_property_name; FIXME: support properties */
 210
 211         captive_file_init(CAPTIVE_FILE_OBJECT(captive_file_slave_object),captive_vfs_object);
 212
 213         *captive_file_object_return=CAPTIVE_FILE_OBJECT(captive_file_slave_object);
 214
 215         r=captive_file_slave_new_internal(captive_file_slave_object,pathname,mode,
 216                         FALSE,  /* create */
 217                         FALSE,  /* create_exclusive; ignored */
 218                         0);     /* create_perm; ignored */
 219
 220         captive_leave();
 221         if (r==GNOME_VFS_OK)
 222                 captive_usecount(+1);
 223         else {
 224                 g_object_unref(captive_file_slave_object);
 225                 *captive_file_object_return=NULL;
 226                 }
 227         return r;
 228 }
 229
 230
 231 GnomeVFSResult captive_file_slave_new_create(CaptiveFileObject **captive_file_object_return,
 232                 CaptiveVfsObject *captive_vfs_object,const gchar *pathname,GnomeVFSOpenMode mode,gboolean exclusive,guint perm)
 233 {
 234 GnomeVFSResult r;
 235 CaptiveFileSlaveObject *captive_file_slave_object;
 236
 237         g_return_val_if_fail(captive_file_object_return!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 238         g_return_val_if_fail(CAPTIVE_VFS_SLAVE_IS_OBJECT(captive_vfs_object),GNOME_VFS_ERROR_BAD_PARAMETERS);
 239         g_return_val_if_fail(pathname!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 240
 241         captive_file_slave_object=g_object_new(
 242                         CAPTIVE_FILE_SLAVE_TYPE_OBJECT, /* object_type */
 243                         NULL);  /* first_property_name; FIXME: support properties */
 244
 245         captive_file_init(CAPTIVE_FILE_OBJECT(captive_file_slave_object),captive_vfs_object);
 246
 247         *captive_file_object_return=CAPTIVE_FILE_OBJECT(captive_file_slave_object);
 248
 249         r=captive_file_slave_new_internal(captive_file_slave_object,pathname,mode,
 250                         TRUE,   /* create */
 251                         exclusive,      /* create_exclusive */
 252                         perm);  /* create_perm */
 253
 254         captive_leave();
 255         if (r==GNOME_VFS_OK)
 256                 captive_usecount(+1);
 257         else {
 258                 g_object_unref(captive_file_slave_object);
 259                 *captive_file_object_return=NULL;
 260                 }
 261         return r;
 262 }
 263
 264
 265 static GnomeVFSResult captive_file_slave_close(CaptiveFileObject *captive_file_object)
 266 {
 267 CaptiveFileSlaveObject *captive_file_slave_object;
 268 NTSTATUS err;
 269 HANDLE file_Handle;
 270
 271         g_return_val_if_fail(CAPTIVE_FILE_SLAVE_IS_OBJECT(captive_file_object),GNOME_VFS_ERROR_BAD_PARAMETERS);
 272
 273         captive_file_slave_object=CAPTIVE_FILE_SLAVE_OBJECT(captive_file_object);
 274
 275         if (captive_file_slave_object->file_Handle!=NULL) {     /* not yet already closed */
 276                 captive_usecount(-1);   /* close() errors notwithstanding */
 277
 278                 file_Handle=captive_file_slave_object->file_Handle;
 279                 captive_file_slave_object->file_Handle=NULL;
 280                 err=NtClose(file_Handle);
 281                 g_return_val_if_fail(NT_SUCCESS(err),GNOME_VFS_ERROR_GENERIC);
 282                 }
 283
 284         captive_leave();
 285         return GNOME_VFS_OK;
 286 }
 287
 288
 289 GnomeVFSResult captive_file_slave_read(CaptiveFileObject *captive_file_object,
 290                 gpointer buffer,GnomeVFSFileSize num_bytes,GnomeVFSFileSize *bytes_read_return)
 291 {
 292 CaptiveFileSlaveObject *captive_file_slave_object;
 293 NTSTATUS err;
 294 IO_STATUS_BLOCK file_IoStatusBlock;
 295 LARGE_INTEGER file_offset;
 296 GnomeVFSResult errvfsresult;
 297
 298         g_return_val_if_fail(CAPTIVE_FILE_SLAVE_IS_OBJECT(captive_file_object),GNOME_VFS_ERROR_BAD_PARAMETERS);
 299         g_return_val_if_fail(buffer!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 300         g_return_val_if_fail(bytes_read_return!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 301         g_return_val_if_fail(num_bytes==(ULONG)num_bytes,GNOME_VFS_ERROR_BAD_PARAMETERS);
 302
 303         captive_file_slave_object=CAPTIVE_FILE_SLAVE_OBJECT(captive_file_object);
 304
 305         g_return_val_if_fail(captive_file_slave_object->file_Handle!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 306
 307         file_offset.QuadPart=captive_file_slave_object->offset;
 308         err=NtReadFile(
 309                         captive_file_slave_object->file_Handle, /* FileHandle */
 310                         NULL,   /* EventHandle; completion signalling; optional */
 311                         NULL,   /* ApcRoutine; optional */
 312                         NULL,   /* ApcContext; optional */
 313                         &file_IoStatusBlock,    /* IoStatusBlock */
 314                         buffer, /* Buffer */
 315                         num_bytes,      /* Length */
 316                         &file_offset,   /* ByteOffset */
 317                         NULL);  /* Key; NULL means no file locking key */
 318         if (err==STATUS_END_OF_FILE) {
 319                 g_return_val_if_fail(file_IoStatusBlock.Status==STATUS_END_OF_FILE,GNOME_VFS_ERROR_GENERIC);
 320                 g_return_val_if_fail(file_IoStatusBlock.Information==0,GNOME_VFS_ERROR_GENERIC);
 321                 *bytes_read_return=0;
 322                 return GNOME_VFS_ERROR_EOF;
 323                 }
 324         g_return_val_if_fail(file_IoStatusBlock.Information>0,GNOME_VFS_ERROR_GENERIC); /* if not STATUS_END_OF_FILE... */
 325         if (GNOME_VFS_OK!=(errvfsresult=captive_NTSTATUS_to_GnomeVFSResult(err)))
 326                 return errvfsresult;
 327         g_return_val_if_fail(NT_SUCCESS(err)==NT_SUCCESS(file_IoStatusBlock.Status),GNOME_VFS_ERROR_GENERIC);
 328         g_return_val_if_fail(NT_SUCCESS(err),GNOME_VFS_ERROR_GENERIC);
 329         g_return_val_if_fail(file_IoStatusBlock.Information<=num_bytes,GNOME_VFS_ERROR_GENERIC);
 330
 331         captive_file_slave_object->offset+=file_IoStatusBlock.Information;
 332         *bytes_read_return=file_IoStatusBlock.Information;
 333         captive_leave();
 334         return GNOME_VFS_OK;
 335 }
 336
 337
 338 GnomeVFSResult captive_file_slave_write(CaptiveFileObject *captive_file_object,
 339                 gconstpointer buffer,GnomeVFSFileSize num_bytes,GnomeVFSFileSize *bytes_written_return)
 340 {
 341 CaptiveFileSlaveObject *captive_file_slave_object;
 342 NTSTATUS err;
 343 IO_STATUS_BLOCK file_IoStatusBlock;
 344 LARGE_INTEGER file_offset;
 345 GnomeVFSFileInfo file_info;
 346 GnomeVFSFileSize endoffile_wanted;
 347 GnomeVFSResult errvfsresult;
 348 static GnomeVFSFileSize total_written=0;
 349
 350         g_return_val_if_fail(CAPTIVE_FILE_SLAVE_IS_OBJECT(captive_file_object),GNOME_VFS_ERROR_BAD_PARAMETERS);
 351         g_return_val_if_fail(buffer!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 352         g_return_val_if_fail(bytes_written_return!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 353         g_return_val_if_fail(num_bytes==(ULONG)num_bytes,GNOME_VFS_ERROR_BAD_PARAMETERS);
 354
 355         captive_file_slave_object=CAPTIVE_FILE_SLAVE_OBJECT(captive_file_object);
 356
 357         g_return_val_if_fail(captive_file_slave_object->file_Handle!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 358
 359         /* FIXME: Workaround memory consumption for non-journalled fastfat.sys */
 360         if (total_written>=MAX_FILE_WRITTEN && captive_options->sandbox)
 361                 return GNOME_VFS_ERROR_SERVICE_OBSOLETE;
 362         total_written+=num_bytes;
 363
 364         if ((GnomeVFSFileOffset)(captive_file_slave_object->offset+num_bytes) < captive_file_slave_object->offset)
 365                 return GNOME_VFS_ERROR_TOO_BIG;
 366         endoffile_wanted=captive_file_slave_object->offset+num_bytes;
 367         if (GNOME_VFS_OK!=(errvfsresult=captive_file_slave_file_info_get(
 368                         CAPTIVE_FILE_OBJECT(captive_file_slave_object),&file_info)))
 369                 return errvfsresult;
 370         if (file_info.size<endoffile_wanted) {
 371                 if (GNOME_VFS_OK!=(errvfsresult=captive_file_slave_truncate(
 372                                 CAPTIVE_FILE_OBJECT(captive_file_slave_object),endoffile_wanted)))
 373                         return errvfsresult;
 374                 }
 375
 376         file_offset.QuadPart=captive_file_slave_object->offset;
 377         err=NtWriteFile(
 378                         captive_file_slave_object->file_Handle, /* FileHandle */
 379                         NULL,   /* Event; completion signalling; optional */
 380                         NULL,   /* ApcRoutine; optional */
 381                         NULL,   /* ApcContext; optional */
 382                         &file_IoStatusBlock,    /* IoStatusBlock */
 383                         (gpointer /* de-const */ )buffer,       /* Buffer */
 384                         num_bytes,      /* Length */
 385                         &file_offset,   /* ByteOffset */
 386                         NULL);  /* Key; NULL means no file locking key */
 387         g_return_val_if_fail(NT_SUCCESS(err)==NT_SUCCESS(file_IoStatusBlock.Status),GNOME_VFS_ERROR_GENERIC);
 388         g_return_val_if_fail(NT_SUCCESS(err),GNOME_VFS_ERROR_GENERIC);
 389         if (!file_IoStatusBlock.Information) {
 390                 /* FIXME: Check ExRaiseStatus(STATUS_LOG_FILE_FULL);
 391                  * really occured. We expect so and we will remount the volume.
 392                  */
 393                 *bytes_written_return=0;
 394                 return GNOME_VFS_ERROR_SERVICE_OBSOLETE;
 395                 }
 396         g_return_val_if_fail(file_IoStatusBlock.Information==num_bytes,GNOME_VFS_ERROR_GENERIC);
 397
 398         captive_file_slave_object->offset+=file_IoStatusBlock.Information;
 399         *bytes_written_return=file_IoStatusBlock.Information;
 400         captive_leave();
 401         return GNOME_VFS_OK;
 402 }
 403
 404
 405 GnomeVFSResult captive_file_slave_seek
 406                 (CaptiveFileObject *captive_file_object,GnomeVFSSeekPosition whence,GnomeVFSFileOffset offset)
 407 {
 408 CaptiveFileSlaveObject *captive_file_slave_object;
 409
 410         g_return_val_if_fail(CAPTIVE_FILE_SLAVE_IS_OBJECT(captive_file_object),GNOME_VFS_ERROR_BAD_PARAMETERS);
 411
 412         captive_file_slave_object=CAPTIVE_FILE_SLAVE_OBJECT(captive_file_object);
 413
 414         g_return_val_if_fail(captive_file_slave_object->file_Handle!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 415
 416         switch (whence) {
 417                 case GNOME_VFS_SEEK_START:
 418                         captive_file_slave_object->offset=offset;
 419                         break;
 420                 case GNOME_VFS_SEEK_CURRENT:
 421                         if (0
 422                                         || (offset>0 && (captive_file_slave_object->offset+offset)<captive_file_slave_object->offset)
 423                                         || (offset<0 && (captive_file_slave_object->offset+offset)>captive_file_slave_object->offset))
 424                                 return GNOME_VFS_ERROR_BAD_PARAMETERS;
 425                         captive_file_slave_object->offset+=offset;
 426                         break;
 427                 case GNOME_VFS_SEEK_END:
 428                         g_assert_not_reached(); /* NOT IMPLEMENTED YET */
 429                         break;
 430                 default:
 431                         g_return_val_if_reached(GNOME_VFS_ERROR_BAD_PARAMETERS);
 432                 }
 433
 434         captive_leave();
 435         return GNOME_VFS_OK;
 436 }
 437
 438
 439 GnomeVFSResult captive_file_slave_tell(CaptiveFileObject *captive_file_object,GnomeVFSFileOffset *offset_return)
 440 {
 441 CaptiveFileSlaveObject *captive_file_slave_object;
 442
 443         g_return_val_if_fail(CAPTIVE_FILE_SLAVE_IS_OBJECT(captive_file_object),GNOME_VFS_ERROR_BAD_PARAMETERS);
 444         g_return_val_if_fail(offset_return!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 445
 446         captive_file_slave_object=CAPTIVE_FILE_SLAVE_OBJECT(captive_file_object);
 447
 448         g_return_val_if_fail(captive_file_slave_object->file_Handle!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 449
 450         *offset_return=captive_file_slave_object->offset;
 451         captive_leave();
 452         return GNOME_VFS_OK;
 453 }
 454
 455
 456 GnomeVFSResult captive_file_slave_remove(CaptiveFileObject *captive_file_object)
 457 {
 458 CaptiveFileSlaveObject *captive_file_slave_object;
 459 NTSTATUS err;
 460 FILE_DISPOSITION_INFORMATION FileDispositionInformation_struct;
 461 IO_STATUS_BLOCK file_IoStatusBlock;
 462 GnomeVFSResult errvfsresult;
 463
 464         g_return_val_if_fail(CAPTIVE_FILE_SLAVE_IS_OBJECT(captive_file_object),GNOME_VFS_ERROR_BAD_PARAMETERS);
 465
 466         captive_file_slave_object=CAPTIVE_FILE_SLAVE_OBJECT(captive_file_object);
 467
 468         g_return_val_if_fail(captive_file_slave_object->file_Handle!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 469
 470         FileDispositionInformation_struct.DoDeleteFile=TRUE;
 471
 472         err=NtSetInformationFile(
 473                         captive_file_slave_object->file_Handle, /* FileHandle */
 474                         &file_IoStatusBlock,    /* IoStatusBlock */
 475                         &FileDispositionInformation_struct,     /* FileInformation */
 476                         sizeof(FileDispositionInformation_struct),      /* Length */
 477                         FileDispositionInformation);    /* FileInformationClass */
 478         if (GNOME_VFS_OK!=(errvfsresult=captive_NTSTATUS_to_GnomeVFSResult(err)))
 479                 return errvfsresult;
 480         g_return_val_if_fail(NT_SUCCESS(err),GNOME_VFS_ERROR_GENERIC);
 481
 482         captive_leave();
 483         return GNOME_VFS_OK;
 484 }
 485
 486
 487 /* Use 'FileNameInformationStruct' identifier instead of the logical 'FileNameInformation'
 488  * to prevent override of enum member 'FileNameInformation'
 489  */
 490 static GnomeVFSResult FileNameInformationStruct_to_GnomeVFSFileInfo(GnomeVFSFileInfo *file_info,
 491                 FILE_NAME_INFORMATION *FileNameInformationStruct)
 492 {
 493 UNICODE_STRING FileName_UnicodeString;
 494
 495         g_return_val_if_fail(file_info!=NULL,GNOME_VFS_ERROR_GENERIC);
 496         g_return_val_if_fail(FileNameInformationStruct!=NULL,GNOME_VFS_ERROR_GENERIC);
 497
 498         FileName_UnicodeString.Length=FileNameInformationStruct->FileNameLength;
 499         FileName_UnicodeString.MaximumLength=FileNameInformationStruct->FileNameLength
 500                         +sizeof(*FileNameInformationStruct->FileName);  /* 0-terminator */
 501
 502 #if 0   /* 'IoStatusBlock->Information' is sometimes weird, do not check it */
 503         g_assert((gpointer)(((char *)FileNameInformationStruct->FileName)+FileName_UnicodeString.Length)
 504                         <=(gpointer)(((char *)FileAllInformationStruct)+IoStatusBlock->Information));
 505                                         /* ensure we fit below '->IoStatusBlock->Information' at least without the 0-terminator */
 506 #endif
 507
 508         FileNameInformationStruct->FileName[FileNameInformationStruct->FileNameLength
 509                         /sizeof(*FileNameInformationStruct->FileName)]=0;       /* 0-terminate it */
 510         FileName_UnicodeString.Buffer=FileNameInformationStruct->FileName;
 511         file_info->name=captive_UnicodeString_to_utf8_malloc(&FileName_UnicodeString);
 512         /* '->name' assumed for 'file_info->valid_fields' */
 513
 514         return GNOME_VFS_OK;
 515 }
 516
 517
 518 /* Use 'FileBasicInformationStruct' identifier instead of the logical 'FileBasicInformation'
 519  * to prevent override of enum member 'FileBasicInformation'
 520  */
 521 static GnomeVFSResult FileBasicInformationStruct_to_GnomeVFSFileInfo(GnomeVFSFileInfo *file_info,
 522                 FILE_BASIC_INFORMATION *FileBasicInformationStruct)
 523 {
 524 BOOLEAN errBOOLEAN;
 525 ULONG tmp_ULONG;
 526
 527         /* FIXME: What is 'FILE_ATTRIBUTE_NORMAL'? */
 528         switch (FileBasicInformationStruct->FileAttributes & (0
 529                         | FILE_ATTRIBUTE_DIRECTORY
 530                         | FILE_ATTRIBUTE_DEVICE)) {
 531                 case 0:                        file_info->type=GNOME_VFS_FILE_TYPE_REGULAR;   break;
 532                 case FILE_ATTRIBUTE_DIRECTORY: file_info->type=GNOME_VFS_FILE_TYPE_DIRECTORY; break;
 533                 case FILE_ATTRIBUTE_DEVICE:    file_info->type=GNOME_VFS_FILE_TYPE_SOCKET;
 534                         /* or GNOME_VFS_FILE_TYPE_CHARACTER_DEVICE or GNOME_VFS_FILE_TYPE_BLOCK_DEVICE ? */
 535                         break;
 536                 default:                       file_info->type=GNOME_VFS_FILE_TYPE_UNKNOWN;   break;
 537                 }
 538         file_info->valid_fields|=GNOME_VFS_FILE_INFO_FIELDS_TYPE;
 539
 540         /* we use 0600 for r/w files, 0400 for FILE_ATTRIBUTE_READONLY */
 541         file_info->permissions=GNOME_VFS_PERM_USER_READ;
 542         if (file_info->type==GNOME_VFS_FILE_TYPE_DIRECTORY)
 543                 file_info->permissions|=GNOME_VFS_PERM_USER_EXEC;
 544         if (!(FileBasicInformationStruct->FileAttributes & FILE_ATTRIBUTE_READONLY))
 545                 file_info->permissions|=GNOME_VFS_PERM_USER_WRITE;
 546         file_info->valid_fields|=GNOME_VFS_FILE_INFO_FIELDS_PERMISSIONS;
 547
 548         if (FileBasicInformationStruct->LastAccessTime.QuadPart) {      /* it may be 0 if not set */
 549                 errBOOLEAN=RtlTimeToSecondsSince1970(&FileBasicInformationStruct->LastAccessTime,&tmp_ULONG);
 550                 g_assert(errBOOLEAN==TRUE);
 551                 file_info->atime=tmp_ULONG;
 552                 file_info->valid_fields|=GNOME_VFS_FILE_INFO_FIELDS_ATIME;
 553                 }
 554
 555         /* it may be 0 if not set */
 556         if (FileBasicInformationStruct->LastWriteTime.QuadPart || FileBasicInformationStruct->ChangeTime.QuadPart) {
 557                 errBOOLEAN=RtlTimeToSecondsSince1970(
 558                                 /* take the more recent (==bigger) time: */
 559                                 (FileBasicInformationStruct->LastWriteTime.QuadPart > FileBasicInformationStruct->ChangeTime.QuadPart
 560                                                 ? &FileBasicInformationStruct->LastWriteTime : &FileBasicInformationStruct->ChangeTime),
 561                                 &tmp_ULONG);
 562                 g_assert(errBOOLEAN==TRUE);
 563                 file_info->mtime=tmp_ULONG;
 564                 file_info->valid_fields|=GNOME_VFS_FILE_INFO_FIELDS_MTIME;
 565                 }
 566
 567         if (FileBasicInformationStruct->CreationTime.QuadPart) {        /* it may be 0 if not set */
 568                 errBOOLEAN=RtlTimeToSecondsSince1970(&FileBasicInformationStruct->CreationTime,&tmp_ULONG);
 569                 g_assert(errBOOLEAN==TRUE);
 570                 file_info->ctime=tmp_ULONG;
 571                 file_info->valid_fields|=GNOME_VFS_FILE_INFO_FIELDS_CTIME;
 572                 }
 573
 574         return GNOME_VFS_OK;
 575 }
 576
 577
 578 /* Use 'FileStandardInformationStruct' identifier instead of the logical 'FileStandardInformation'
 579  * to prevent override of enum member 'FileStandardInformation'
 580  */
 581 static GnomeVFSResult FileStandardInformationStruct_to_GnomeVFSFileInfo(GnomeVFSFileInfo *file_info,
 582                 FILE_STANDARD_INFORMATION *FileStandardInformationStruct)
 583 {
 584         file_info->size=FileStandardInformationStruct->EndOfFile.QuadPart;
 585         file_info->valid_fields|=GNOME_VFS_FILE_INFO_FIELDS_SIZE;
 586
 587         file_info->block_count=FileStandardInformationStruct->AllocationSize.QuadPart/512;
 588         file_info->valid_fields|=GNOME_VFS_FILE_INFO_FIELDS_BLOCK_COUNT;
 589
 590         return GNOME_VFS_OK;
 591 }
 592
 593
 594 GnomeVFSResult captive_file_slave_file_info_get(CaptiveFileObject *captive_file_object,
 595                 GnomeVFSFileInfo *file_info)
 596 {
 597 CaptiveFileSlaveObject *captive_file_slave_object;
 598 NTSTATUS err;
 599 IO_STATUS_BLOCK file_IoStatusBlock;
 600 FILE_NAME_INFORMATION *FileNameInformationStruct;
 601 FILE_BASIC_INFORMATION *FileBasicInformationStruct;
 602 FILE_STANDARD_INFORMATION *FileStandardInformationStruct;
 603 GnomeVFSResult errvfsresult;
 604 char QueryFile_buf[sizeof(FILE_NAME_INFORMATION)
 605                 +0x1000 /* max 'FileName' length, 255 should be enough */ * sizeof(WCHAR /* *FILE_ALL_INFORMATION.NameInformation.FileName */ )];
 606
 607         g_return_val_if_fail(CAPTIVE_FILE_SLAVE_IS_OBJECT(captive_file_object),GNOME_VFS_ERROR_BAD_PARAMETERS);
 608         g_return_val_if_fail(file_info!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 609
 610         captive_file_slave_object=CAPTIVE_FILE_SLAVE_OBJECT(captive_file_object);
 611
 612         g_return_val_if_fail(captive_file_slave_object->file_Handle!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 613
 614         /* ntfs.sys of NT-5.1sp1 has *(FILE_BASIC_INFORMATION *)FILE_ALL_INFORMATION.BasicInformation
 615          * size 0x28 although reactos includes and all the information says 0x24.
 616          * fastfat.sys of NT-5.1sp1 also has the 'official' sizeof 0x24.
 617          * It would be a bit of heuristic to correctly detect its expected sizeof.
 618          */
 619
 620         file_info->valid_fields=0;
 621
 622         file_info->flags=GNOME_VFS_FILE_FLAGS_LOCAL;
 623         file_info->valid_fields|=GNOME_VFS_FILE_INFO_FIELDS_FLAGS;
 624
 625         /* query NameInformation */
 626         FileNameInformationStruct=(void *)QueryFile_buf;
 627         err=NtQueryInformationFile(
 628                         captive_file_slave_object->file_Handle, /* FileHandle */
 629                         &file_IoStatusBlock,    /* IoStatusBlock */
 630                         (gpointer)QueryFile_buf,        /* FileInformation */
 631                         sizeof(QueryFile_buf)   /* Length */
 632                                         -sizeof(*FileNameInformationStruct->FileName),  /* reserve space for a possible 0-terminator */
 633                         FileNameInformation);   /* FileInformationClass; =>FILE_NAME_INFORMATION */
 634         if (GNOME_VFS_OK!=(errvfsresult=captive_NTSTATUS_to_GnomeVFSResult(err)))
 635                 return errvfsresult;
 636         g_return_val_if_fail(NT_SUCCESS(err)==NT_SUCCESS(file_IoStatusBlock.Status),GNOME_VFS_ERROR_GENERIC);
 637         g_return_val_if_fail(NT_SUCCESS(err),GNOME_VFS_ERROR_GENERIC);
 638         errvfsresult=FileNameInformationStruct_to_GnomeVFSFileInfo(file_info,FileNameInformationStruct);
 639         g_return_val_if_fail(errvfsresult==GNOME_VFS_OK,errvfsresult);
 640
 641         /* query BasicInformation */
 642         FileBasicInformationStruct=(void *)QueryFile_buf;
 643         err=NtQueryInformationFile(
 644                         captive_file_slave_object->file_Handle, /* FileHandle */
 645                         &file_IoStatusBlock,    /* IoStatusBlock */
 646                         (gpointer)QueryFile_buf,        /* FileInformation */
 647                         sizeof(QueryFile_buf),  /* Length */
 648                         FileBasicInformation);  /* FileInformationClass; =>FILE_BASIC_INFORMATION */
 649         if (GNOME_VFS_OK!=(errvfsresult=captive_NTSTATUS_to_GnomeVFSResult(err)))
 650                 return errvfsresult;
 651         g_return_val_if_fail(NT_SUCCESS(err)==NT_SUCCESS(file_IoStatusBlock.Status),GNOME_VFS_ERROR_GENERIC);
 652         g_return_val_if_fail(NT_SUCCESS(err),GNOME_VFS_ERROR_GENERIC);
 653         errvfsresult=FileBasicInformationStruct_to_GnomeVFSFileInfo(file_info,FileBasicInformationStruct);
 654         g_return_val_if_fail(errvfsresult==GNOME_VFS_OK,errvfsresult);
 655
 656         /* query StandardInformation */
 657         FileStandardInformationStruct=(void *)QueryFile_buf;
 658         err=NtQueryInformationFile(
 659                         captive_file_slave_object->file_Handle, /* FileHandle */
 660                         &file_IoStatusBlock,    /* IoStatusBlock */
 661                         (gpointer)QueryFile_buf,        /* FileInformation */
 662                         sizeof(QueryFile_buf),  /* Length */
 663                         FileStandardInformation);       /* FileInformationClass; =>FILE_STANDARD_INFORMATION */
 664         if (GNOME_VFS_OK!=(errvfsresult=captive_NTSTATUS_to_GnomeVFSResult(err)))
 665                 return errvfsresult;
 666         g_return_val_if_fail(NT_SUCCESS(err)==NT_SUCCESS(file_IoStatusBlock.Status),GNOME_VFS_ERROR_GENERIC);
 667         g_return_val_if_fail(NT_SUCCESS(err),GNOME_VFS_ERROR_GENERIC);
 668         errvfsresult=FileStandardInformationStruct_to_GnomeVFSFileInfo(file_info,FileStandardInformationStruct);
 669         g_return_val_if_fail(errvfsresult==GNOME_VFS_OK,errvfsresult);
 670
 671         captive_leave();
 672         return GNOME_VFS_OK;
 673 }
 674
 675
 676 GnomeVFSResult captive_file_slave_file_info_set(CaptiveFileObject *captive_file_object,
 677     const GnomeVFSFileInfo *info,GnomeVFSSetFileInfoMask mask)
 678 {
 679 CaptiveFileSlaveObject *captive_file_slave_object;
 680
 681         g_return_val_if_fail(CAPTIVE_FILE_SLAVE_IS_OBJECT(captive_file_object),GNOME_VFS_ERROR_BAD_PARAMETERS);
 682         g_return_val_if_fail(info!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 683
 684         captive_file_slave_object=CAPTIVE_FILE_SLAVE_OBJECT(captive_file_object);
 685
 686         g_return_val_if_fail(captive_file_slave_object->file_Handle!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 687
 688         if (mask & GNOME_VFS_SET_FILE_INFO_NAME) {
 689 gchar *name_dirname,*name_basename;
 690 UNICODE_STRING *name_UnicodeString;
 691 FILE_RENAME_INFORMATION *FileRenameInformation_structp;
 692 gsize FileRenameInformation_struct_len;
 693 IO_STATUS_BLOCK file_IoStatusBlock;
 694 NTSTATUS err=STATUS_SUCCESS;    /* Prevent: ... might be used uninitialized in this function */
 695 GnomeVFSResult errvfsresult;
 696
 697                 /* non-existing dirname assertion */
 698                 name_dirname=g_path_get_dirname(info->name);
 699                 if (*name_dirname) {
 700                         g_assert_not_reached();
 701                         errvfsresult=GNOME_VFS_ERROR_BAD_PARAMETERS;
 702                         goto err;
 703                         }
 704
 705                 /* fully-matching basename assertion */
 706                 name_basename=g_path_get_basename(info->name);
 707                 if (strcmp(name_basename,info->name)) {
 708                         g_assert_not_reached();
 709                         errvfsresult=GNOME_VFS_ERROR_BAD_PARAMETERS;
 710                         goto err_free_name_dirname;
 711                         }
 712
 713                 name_UnicodeString=captive_utf8_to_UnicodeString_alloca(info->name);
 714                 FileRenameInformation_struct_len=sizeof(*FileRenameInformation_structp)
 715                                 +name_UnicodeString->MaximumLength;     /* ==Length+(0-terminator); is the terminator needed? */
 716
 717                 FileRenameInformation_structp=g_alloca(FileRenameInformation_struct_len);
 718                 FileRenameInformation_structp->Replace=FALSE;
 719                 FileRenameInformation_structp->RootDir=NULL;    /* we do 'simple rename' here */
 720                 FileRenameInformation_structp->FileNameLength=name_UnicodeString->Length;
 721                 memcpy(FileRenameInformation_structp->FileName,name_UnicodeString->Buffer,
 722                                 name_UnicodeString->MaximumLength);     /* ==Length+(0-terminator); is the terminator needed? */
 723
 724                 err=NtSetInformationFile(
 725                                 captive_file_slave_object->file_Handle, /* FileHandle */
 726                                 &file_IoStatusBlock,    /* IoStatusBlock */
 727                                 FileRenameInformation_structp,  /* FileInformation */
 728                                 FileRenameInformation_struct_len,       /* Length */
 729                                 FileRenameInformation); /* FileInformationClass */
 730                 if (GNOME_VFS_OK!=(errvfsresult=captive_NTSTATUS_to_GnomeVFSResult(err)))
 731                         goto err_free_name_basename;
 732
 733 err_free_name_basename:
 734                 g_free(name_basename);
 735 err_free_name_dirname:
 736                 g_free(name_dirname);
 737 err:
 738
 739                 if (errvfsresult!=GNOME_VFS_OK)
 740                         return errvfsresult;
 741                 g_return_val_if_fail(NT_SUCCESS(err),GNOME_VFS_ERROR_GENERIC);
 742                 }
 743
 744         if (mask & (GNOME_VFS_SET_FILE_INFO_PERMISSIONS | GNOME_VFS_SET_FILE_INFO_TIME)) {
 745 char FileBasicInformation_buf[sizeof(FILE_BASIC_INFORMATION)+4];
 746 FILE_BASIC_INFORMATION *FileBasicInformationp=(FILE_BASIC_INFORMATION *)FileBasicInformation_buf;
 747 IO_STATUS_BLOCK file_IoStatusBlock;
 748 NTSTATUS err;
 749
 750                 /* FIXME: Everywhere is is the declaration with 4xLARGE_INTEGER+1xULONG==36 bytes
 751                  * but the precompiled ext2fsd.sys wants 40 bytes - why?
 752                  * The same case applies to ntfs.sys of NT-5.1sp1.
 753                  */
 754                 g_assert(sizeof(FILE_BASIC_INFORMATION)==36);
 755                 g_assert(sizeof(FileBasicInformation_buf)==40);
 756                 err=NtQueryInformationFile(
 757                                 captive_file_slave_object->file_Handle, /* FileHandle */
 758                                 &file_IoStatusBlock,    /* IoStatusBlock */
 759                                 FileBasicInformation_buf,       /* FileInformation */
 760                                 sizeof(FileBasicInformation_buf),       /* Length */
 761                                 FileBasicInformation);  /* FileInformationClass */
 762                 g_return_val_if_fail(NT_SUCCESS(err),GNOME_VFS_ERROR_GENERIC);
 763
 764                 if (mask & GNOME_VFS_SET_FILE_INFO_PERMISSIONS) {
 765                         FileBasicInformationp->FileAttributes&=~FILE_ATTRIBUTE_READONLY;
 766                         g_assert(info->valid_fields & GNOME_VFS_FILE_INFO_FIELDS_PERMISSIONS);
 767                         if (!(info->permissions&0200))
 768                                 FileBasicInformationp->FileAttributes|=FILE_ATTRIBUTE_READONLY;
 769                         }
 770
 771                 if (mask & GNOME_VFS_SET_FILE_INFO_TIME) {
 772                         g_assert(info->valid_fields & (0
 773                                         | GNOME_VFS_FILE_INFO_FIELDS_ATIME
 774                                         | GNOME_VFS_FILE_INFO_FIELDS_MTIME
 775                                         | GNOME_VFS_FILE_INFO_FIELDS_CTIME));
 776                         if (info->valid_fields&GNOME_VFS_FILE_INFO_FIELDS_ATIME) {
 777                                 RtlSecondsSince1970ToTime(
 778                                                 info->atime,    /* SecondsSince1970 */
 779                                                 &FileBasicInformationp->LastAccessTime);        /* Time */
 780                                 }
 781                         if (info->valid_fields&GNOME_VFS_FILE_INFO_FIELDS_MTIME) {
 782                                 RtlSecondsSince1970ToTime(
 783                                                 info->mtime,    /* SecondsSince1970 */
 784                                                 &FileBasicInformationp->LastWriteTime); /* Time */
 785                                 FileBasicInformationp->ChangeTime=FileBasicInformationp->LastWriteTime;
 786                                 }
 787                         if (info->valid_fields&GNOME_VFS_FILE_INFO_FIELDS_CTIME) {
 788                                 RtlSecondsSince1970ToTime(
 789                                                 info->ctime,    /* SecondsSince1970 */
 790                                                 &FileBasicInformationp->CreationTime);  /* Time */
 791                                 }
 792                         }
 793
 794                 err=NtSetInformationFile(
 795                                 captive_file_slave_object->file_Handle, /* FileHandle */
 796                                 &file_IoStatusBlock,    /* IoStatusBlock */
 797                                 FileBasicInformation_buf,       /* FileInformation */
 798                                 sizeof(FileBasicInformation_buf),       /* Length */
 799                                 FileBasicInformation);  /* FileInformationClass */
 800                 g_return_val_if_fail(NT_SUCCESS(err),GNOME_VFS_ERROR_GENERIC);
 801                 }
 802
 803         if (mask & GNOME_VFS_SET_FILE_INFO_OWNER) {
 804                 /* FIXME: g_assert(info->valid_fields & ???); */
 805                 /* owner ignored for W32 */
 806                 }
 807
 808         captive_leave();
 809         return GNOME_VFS_OK;
 810 }
 811
 812
 813 GnomeVFSResult captive_file_slave_truncate(CaptiveFileObject *captive_file_object,GnomeVFSFileSize file_size)
 814 {
 815 CaptiveFileSlaveObject *captive_file_slave_object;
 816 NTSTATUS err;
 817 FILE_END_OF_FILE_INFORMATION FileEndOfFileInformation_struct;
 818 IO_STATUS_BLOCK file_IoStatusBlock;
 819 GnomeVFSResult errvfsresult;
 820
 821         g_return_val_if_fail(CAPTIVE_FILE_SLAVE_IS_OBJECT(captive_file_object),GNOME_VFS_ERROR_BAD_PARAMETERS);
 822
 823         captive_file_slave_object=CAPTIVE_FILE_SLAVE_OBJECT(captive_file_object);
 824
 825         g_return_val_if_fail(captive_file_slave_object->file_Handle!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 826
 827         FileEndOfFileInformation_struct.EndOfFile.QuadPart=file_size;
 828
 829         err=NtSetInformationFile(
 830                         captive_file_slave_object->file_Handle, /* FileHandle */
 831                         &file_IoStatusBlock,    /* IoStatusBlock */
 832                         &FileEndOfFileInformation_struct,       /* FileInformation */
 833                         sizeof(FileEndOfFileInformation_struct),        /* Length */
 834                         FileEndOfFileInformation);      /* FileInformationClass */
 835         if (GNOME_VFS_OK!=(errvfsresult=captive_NTSTATUS_to_GnomeVFSResult(err)))
 836                 return errvfsresult;
 837         g_return_val_if_fail(NT_SUCCESS(err),GNOME_VFS_ERROR_GENERIC);
 838
 839         captive_leave();
 840         return GNOME_VFS_OK;
 841 }
 842
 843
 844 GnomeVFSResult captive_file_slave_move
 845                 (CaptiveFileObject *captive_file_object_old,const gchar *pathname_new,gboolean force_replace)
 846 {
 847 CaptiveFileSlaveObject *captive_file_slave_object_old;
 848 NTSTATUS err;
 849 FILE_RENAME_INFORMATION *FileRenameInformation_structp;
 850 IO_STATUS_BLOCK file_IoStatusBlock;
 851 GnomeVFSResult errvfsresult;
 852 OBJECT_ATTRIBUTES pathname_new_ObjectAttributes;
 853
 854         g_return_val_if_fail(CAPTIVE_FILE_SLAVE_IS_OBJECT(captive_file_object_old),GNOME_VFS_ERROR_BAD_PARAMETERS);
 855         g_return_val_if_fail(pathname_new!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 856
 857         captive_file_slave_object_old=CAPTIVE_FILE_SLAVE_OBJECT(captive_file_object_old);
 858
 859         g_return_val_if_fail(captive_file_slave_object_old->file_Handle!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 860
 861         errvfsresult=captive_ObjectAttributes_init(pathname_new,&pathname_new_ObjectAttributes);
 862         g_return_val_if_fail(errvfsresult==GNOME_VFS_OK,errvfsresult);
 863
 864         FileRenameInformation_structp=
 865                         g_alloca(sizeof(*FileRenameInformation_structp)+pathname_new_ObjectAttributes.ObjectName->MaximumLength);
 866         FileRenameInformation_structp->Replace=force_replace;
 867         FileRenameInformation_structp->RootDir=0;       /* AFAIK never set by orig W32 */
 868         FileRenameInformation_structp->FileNameLength=pathname_new_ObjectAttributes.ObjectName->Length;
 869         memcpy(FileRenameInformation_structp->FileName,pathname_new_ObjectAttributes.ObjectName->Buffer,
 870                         pathname_new_ObjectAttributes.ObjectName->MaximumLength);
 871
 872         err=NtSetInformationFile(
 873                         captive_file_slave_object_old->file_Handle,     /* FileHandle */
 874                         &file_IoStatusBlock,    /* IoStatusBlock */
 875                         FileRenameInformation_structp,  /* FileInformation */
 876                         sizeof(*FileRenameInformation_structp)+pathname_new_ObjectAttributes.ObjectName->MaximumLength, /* Length */
 877                         FileRenameInformation); /* FileInformationClass */
 878         if (GNOME_VFS_OK!=(errvfsresult=captive_NTSTATUS_to_GnomeVFSResult(err)))
 879                 goto err_free_ObjectAttributes;
 880         g_return_val_if_fail(NT_SUCCESS(err),GNOME_VFS_ERROR_GENERIC);
 881
 882         errvfsresult=GNOME_VFS_OK;
 883
 884 err_free_ObjectAttributes:
 885         g_free(pathname_new_ObjectAttributes.ObjectName);       /* left from captive_file_slave_uri_parent_init() */
 886
 887         captive_leave();
 888         return errvfsresult;
 889 }