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                                         /* sniffed: | SYNCHRONIZE       */
 160                                         |(!(mode&GNOME_VFS_OPEN_READ ) ? 0 : FILE_READ_DATA)
 161                                         |(!(mode&GNOME_VFS_OPEN_WRITE) ? 0 : FILE_WRITE_DATA | FILE_APPEND_DATA | FILE_WRITE_ATTRIBUTES)
 162                                         |(  mode!=0                    ? 0 : FILE_READ_ATTRIBUTES)
 163                                         ,       /* DesiredAccess */
 164                         &file_ObjectAttributes, /* ObjectAttributes */
 165                         &file_IoStatusBlock,    /* IoStatusBlock */
 166                         NULL,   /* AllocationSize; ignored for open */
 167                         (!create || create_perm&0200 ? FILE_ATTRIBUTE_NORMAL: FILE_ATTRIBUTE_READONLY), /* FileAttributes; ignored for open */
 168                         (!create || !create_exclusive   /* ShareAccess; 0 means exclusive */
 169                                         ? (FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE)
 170                                         : 0),
 171                         (!create ? FILE_OPEN : FILE_CREATE),    /* CreateDisposition */
 172                         /* FILE_SYNCHRONOUS_IO_{,NON}ALERT: We need to allow W32 filesystem
 173                                  * any waits to not to let it return STATUS_CANT_WAIT us.
 174                                  * Alertability should have only effect on asynchronous events
 175                                  * from KeWaitForSingleObject() by setting/clearing its parameter 'Alertable'.
 176                                  */
 177                         FILE_SYNCHRONOUS_IO_ALERT       /* CreateOptions */
 178                                         /* sniffed: | FILE_DIRECTORY_FILE */
 179                                         /* sniffed: | FILE_OPEN_FOR_BACKUP_INTENT */
 180                                         ,
 181                         NULL,   /* EaBuffer */
 182                         0,      /* EaLength */
 183                         CreateFileTypeNone,     /* CreateFileType */
 184                         NULL,   /* ExtraCreateParameters */
 185                         0);     /* Options */
 186         g_free(file_ObjectAttributes.ObjectName);       /* left from captive_file_slave_uri_parent_init() */
 187         g_return_val_if_fail(NT_SUCCESS(err)==NT_SUCCESS(file_IoStatusBlock.Status),GNOME_VFS_ERROR_GENERIC);
 188         if (GNOME_VFS_OK!=(errvfsresult=captive_NTSTATUS_to_GnomeVFSResult(err)))
 189                 return errvfsresult;
 190         g_return_val_if_fail(NT_SUCCESS(err),GNOME_VFS_ERROR_GENERIC);
 191         g_return_val_if_fail(file_IoStatusBlock.Information
 192                                         ==(!create ? FILE_OPENED : FILE_CREATED),
 193                         GNOME_VFS_ERROR_GENERIC);
 194
 195         captive_file_slave_object->file_Handle=file_Handle;
 196
 197         return GNOME_VFS_OK;
 198 }
 199
 200
 201 GnomeVFSResult captive_file_slave_new_open(CaptiveFileObject **captive_file_object_return,
 202                 CaptiveVfsObject *captive_vfs_object,const gchar *pathname,GnomeVFSOpenMode mode)
 203 {
 204 GnomeVFSResult r;
 205 CaptiveFileSlaveObject *captive_file_slave_object;
 206
 207         g_return_val_if_fail(captive_file_object_return!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 208         g_return_val_if_fail(CAPTIVE_VFS_SLAVE_IS_OBJECT(captive_vfs_object),GNOME_VFS_ERROR_BAD_PARAMETERS);
 209         g_return_val_if_fail(pathname!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 210
 211         captive_file_slave_object=g_object_new(
 212                         CAPTIVE_FILE_SLAVE_TYPE_OBJECT, /* object_type */
 213                         NULL);  /* first_property_name; FIXME: support properties */
 214
 215         captive_file_init(CAPTIVE_FILE_OBJECT(captive_file_slave_object),captive_vfs_object);
 216
 217         *captive_file_object_return=CAPTIVE_FILE_OBJECT(captive_file_slave_object);
 218
 219         r=captive_file_slave_new_internal(captive_file_slave_object,pathname,mode,
 220                         FALSE,  /* create */
 221                         FALSE,  /* create_exclusive; ignored */
 222                         0);     /* create_perm; ignored */
 223
 224         captive_leave();
 225         if (r==GNOME_VFS_OK)
 226                 captive_usecount(+1);
 227         else {
 228                 g_object_unref(captive_file_slave_object);
 229                 *captive_file_object_return=NULL;
 230                 }
 231         return r;
 232 }
 233
 234
 235 GnomeVFSResult captive_file_slave_new_create(CaptiveFileObject **captive_file_object_return,
 236                 CaptiveVfsObject *captive_vfs_object,const gchar *pathname,GnomeVFSOpenMode mode,gboolean exclusive,guint perm)
 237 {
 238 GnomeVFSResult r;
 239 CaptiveFileSlaveObject *captive_file_slave_object;
 240
 241         g_return_val_if_fail(captive_file_object_return!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 242         g_return_val_if_fail(CAPTIVE_VFS_SLAVE_IS_OBJECT(captive_vfs_object),GNOME_VFS_ERROR_BAD_PARAMETERS);
 243         g_return_val_if_fail(pathname!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 244
 245         captive_file_slave_object=g_object_new(
 246                         CAPTIVE_FILE_SLAVE_TYPE_OBJECT, /* object_type */
 247                         NULL);  /* first_property_name; FIXME: support properties */
 248
 249         captive_file_init(CAPTIVE_FILE_OBJECT(captive_file_slave_object),captive_vfs_object);
 250
 251         *captive_file_object_return=CAPTIVE_FILE_OBJECT(captive_file_slave_object);
 252
 253         r=captive_file_slave_new_internal(captive_file_slave_object,pathname,mode,
 254                         TRUE,   /* create */
 255                         exclusive,      /* create_exclusive */
 256                         perm);  /* create_perm */
 257
 258         captive_leave();
 259         if (r==GNOME_VFS_OK)
 260                 captive_usecount(+1);
 261         else {
 262                 g_object_unref(captive_file_slave_object);
 263                 *captive_file_object_return=NULL;
 264                 }
 265         return r;
 266 }
 267
 268
 269 static GnomeVFSResult captive_file_slave_close(CaptiveFileObject *captive_file_object)
 270 {
 271 CaptiveFileSlaveObject *captive_file_slave_object;
 272 NTSTATUS err;
 273 HANDLE file_Handle;
 274
 275         g_return_val_if_fail(CAPTIVE_FILE_SLAVE_IS_OBJECT(captive_file_object),GNOME_VFS_ERROR_BAD_PARAMETERS);
 276
 277         captive_file_slave_object=CAPTIVE_FILE_SLAVE_OBJECT(captive_file_object);
 278
 279         if (captive_file_slave_object->file_Handle!=NULL) {     /* not yet already closed */
 280                 captive_usecount(-1);   /* close() errors notwithstanding */
 281
 282                 file_Handle=captive_file_slave_object->file_Handle;
 283                 captive_file_slave_object->file_Handle=NULL;
 284                 err=NtClose(file_Handle);
 285                 g_return_val_if_fail(NT_SUCCESS(err),GNOME_VFS_ERROR_GENERIC);
 286                 }
 287
 288         captive_leave();
 289         return GNOME_VFS_OK;
 290 }
 291
 292
 293 GnomeVFSResult captive_file_slave_read(CaptiveFileObject *captive_file_object,
 294                 gpointer buffer,GnomeVFSFileSize num_bytes,GnomeVFSFileSize *bytes_read_return)
 295 {
 296 CaptiveFileSlaveObject *captive_file_slave_object;
 297 NTSTATUS err;
 298 IO_STATUS_BLOCK file_IoStatusBlock;
 299 LARGE_INTEGER file_offset;
 300 GnomeVFSResult errvfsresult;
 301
 302         g_return_val_if_fail(CAPTIVE_FILE_SLAVE_IS_OBJECT(captive_file_object),GNOME_VFS_ERROR_BAD_PARAMETERS);
 303         g_return_val_if_fail(buffer!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 304         g_return_val_if_fail(bytes_read_return!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 305         g_return_val_if_fail(num_bytes==(ULONG)num_bytes,GNOME_VFS_ERROR_BAD_PARAMETERS);
 306
 307         captive_file_slave_object=CAPTIVE_FILE_SLAVE_OBJECT(captive_file_object);
 308
 309         g_return_val_if_fail(captive_file_slave_object->file_Handle!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 310
 311         file_offset.QuadPart=captive_file_slave_object->offset;
 312         err=NtReadFile(
 313                         captive_file_slave_object->file_Handle, /* FileHandle */
 314                         NULL,   /* EventHandle; completion signalling; optional */
 315                         NULL,   /* ApcRoutine; optional */
 316                         NULL,   /* ApcContext; optional */
 317                         &file_IoStatusBlock,    /* IoStatusBlock */
 318                         buffer, /* Buffer */
 319                         num_bytes,      /* Length */
 320                         &file_offset,   /* ByteOffset */
 321                         NULL);  /* Key; NULL means no file locking key */
 322         if (err==STATUS_END_OF_FILE) {
 323                 g_return_val_if_fail(file_IoStatusBlock.Status==STATUS_END_OF_FILE,GNOME_VFS_ERROR_GENERIC);
 324                 g_return_val_if_fail(file_IoStatusBlock.Information==0,GNOME_VFS_ERROR_GENERIC);
 325                 *bytes_read_return=0;
 326                 return GNOME_VFS_ERROR_EOF;
 327                 }
 328         g_return_val_if_fail(file_IoStatusBlock.Information>0,GNOME_VFS_ERROR_GENERIC); /* if not STATUS_END_OF_FILE... */
 329         if (GNOME_VFS_OK!=(errvfsresult=captive_NTSTATUS_to_GnomeVFSResult(err)))
 330                 return errvfsresult;
 331         g_return_val_if_fail(NT_SUCCESS(err)==NT_SUCCESS(file_IoStatusBlock.Status),GNOME_VFS_ERROR_GENERIC);
 332         g_return_val_if_fail(NT_SUCCESS(err),GNOME_VFS_ERROR_GENERIC);
 333         g_return_val_if_fail(file_IoStatusBlock.Information<=num_bytes,GNOME_VFS_ERROR_GENERIC);
 334
 335         captive_file_slave_object->offset+=file_IoStatusBlock.Information;
 336         *bytes_read_return=file_IoStatusBlock.Information;
 337         captive_leave();
 338         return GNOME_VFS_OK;
 339 }
 340
 341
 342 GnomeVFSResult captive_file_slave_write(CaptiveFileObject *captive_file_object,
 343                 gconstpointer buffer,GnomeVFSFileSize num_bytes,GnomeVFSFileSize *bytes_written_return)
 344 {
 345 CaptiveFileSlaveObject *captive_file_slave_object;
 346 NTSTATUS err;
 347 IO_STATUS_BLOCK file_IoStatusBlock;
 348 LARGE_INTEGER file_offset;
 349 GnomeVFSFileInfo file_info;
 350 GnomeVFSFileSize endoffile_wanted;
 351 GnomeVFSResult errvfsresult;
 352 static GnomeVFSFileSize total_written=0;
 353
 354         g_return_val_if_fail(CAPTIVE_FILE_SLAVE_IS_OBJECT(captive_file_object),GNOME_VFS_ERROR_BAD_PARAMETERS);
 355         g_return_val_if_fail(buffer!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 356         g_return_val_if_fail(bytes_written_return!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 357         g_return_val_if_fail(num_bytes==(ULONG)num_bytes,GNOME_VFS_ERROR_BAD_PARAMETERS);
 358
 359         captive_file_slave_object=CAPTIVE_FILE_SLAVE_OBJECT(captive_file_object);
 360
 361         g_return_val_if_fail(captive_file_slave_object->file_Handle!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 362
 363         /* FIXME: Workaround memory consumption for non-journalled fastfat.sys */
 364         if (total_written>=MAX_FILE_WRITTEN && captive_options->sandbox)
 365                 return GNOME_VFS_ERROR_SERVICE_OBSOLETE;
 366         total_written+=num_bytes;
 367
 368         if ((GnomeVFSFileOffset)(captive_file_slave_object->offset+num_bytes) < captive_file_slave_object->offset)
 369                 return GNOME_VFS_ERROR_TOO_BIG;
 370         endoffile_wanted=captive_file_slave_object->offset+num_bytes;
 371         if (GNOME_VFS_OK!=(errvfsresult=captive_file_slave_file_info_get(
 372                         CAPTIVE_FILE_OBJECT(captive_file_slave_object),&file_info)))
 373                 return errvfsresult;
 374         if (file_info.size<endoffile_wanted) {
 375                 if (GNOME_VFS_OK!=(errvfsresult=captive_file_slave_truncate(
 376                                 CAPTIVE_FILE_OBJECT(captive_file_slave_object),endoffile_wanted)))
 377                         return errvfsresult;
 378                 }
 379
 380         file_offset.QuadPart=captive_file_slave_object->offset;
 381         err=NtWriteFile(
 382                         captive_file_slave_object->file_Handle, /* FileHandle */
 383                         NULL,   /* Event; completion signalling; optional */
 384                         NULL,   /* ApcRoutine; optional */
 385                         NULL,   /* ApcContext; optional */
 386                         &file_IoStatusBlock,    /* IoStatusBlock */
 387                         (gpointer /* de-const */ )buffer,       /* Buffer */
 388                         num_bytes,      /* Length */
 389                         &file_offset,   /* ByteOffset */
 390                         NULL);  /* Key; NULL means no file locking key */
 391         g_return_val_if_fail(NT_SUCCESS(err)==NT_SUCCESS(file_IoStatusBlock.Status),GNOME_VFS_ERROR_GENERIC);
 392         g_return_val_if_fail(NT_SUCCESS(err),GNOME_VFS_ERROR_GENERIC);
 393         if (!file_IoStatusBlock.Information) {
 394                 /* FIXME: Check ExRaiseStatus(STATUS_LOG_FILE_FULL);
 395                  * really occured. We expect so and we will remount the volume.
 396                  */
 397                 *bytes_written_return=0;
 398                 return GNOME_VFS_ERROR_SERVICE_OBSOLETE;
 399                 }
 400         g_return_val_if_fail(file_IoStatusBlock.Information==num_bytes,GNOME_VFS_ERROR_GENERIC);
 401
 402         captive_file_slave_object->offset+=file_IoStatusBlock.Information;
 403         *bytes_written_return=file_IoStatusBlock.Information;
 404         captive_leave();
 405         return GNOME_VFS_OK;
 406 }
 407
 408
 409 GnomeVFSResult captive_file_slave_seek
 410                 (CaptiveFileObject *captive_file_object,GnomeVFSSeekPosition whence,GnomeVFSFileOffset offset)
 411 {
 412 CaptiveFileSlaveObject *captive_file_slave_object;
 413
 414         g_return_val_if_fail(CAPTIVE_FILE_SLAVE_IS_OBJECT(captive_file_object),GNOME_VFS_ERROR_BAD_PARAMETERS);
 415
 416         captive_file_slave_object=CAPTIVE_FILE_SLAVE_OBJECT(captive_file_object);
 417
 418         g_return_val_if_fail(captive_file_slave_object->file_Handle!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 419
 420         switch (whence) {
 421                 case GNOME_VFS_SEEK_START:
 422                         captive_file_slave_object->offset=offset;
 423                         break;
 424                 case GNOME_VFS_SEEK_CURRENT:
 425                         if (0
 426                                         || (offset>0 && (captive_file_slave_object->offset+offset)<captive_file_slave_object->offset)
 427                                         || (offset<0 && (captive_file_slave_object->offset+offset)>captive_file_slave_object->offset))
 428                                 return GNOME_VFS_ERROR_BAD_PARAMETERS;
 429                         captive_file_slave_object->offset+=offset;
 430                         break;
 431                 case GNOME_VFS_SEEK_END:
 432                         g_assert_not_reached(); /* NOT IMPLEMENTED YET */
 433                         break;
 434                 default:
 435                         g_return_val_if_reached(GNOME_VFS_ERROR_BAD_PARAMETERS);
 436                 }
 437
 438         captive_leave();
 439         return GNOME_VFS_OK;
 440 }
 441
 442
 443 GnomeVFSResult captive_file_slave_tell(CaptiveFileObject *captive_file_object,GnomeVFSFileOffset *offset_return)
 444 {
 445 CaptiveFileSlaveObject *captive_file_slave_object;
 446
 447         g_return_val_if_fail(CAPTIVE_FILE_SLAVE_IS_OBJECT(captive_file_object),GNOME_VFS_ERROR_BAD_PARAMETERS);
 448         g_return_val_if_fail(offset_return!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 449
 450         captive_file_slave_object=CAPTIVE_FILE_SLAVE_OBJECT(captive_file_object);
 451
 452         g_return_val_if_fail(captive_file_slave_object->file_Handle!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 453
 454         *offset_return=captive_file_slave_object->offset;
 455         captive_leave();
 456         return GNOME_VFS_OK;
 457 }
 458
 459
 460 GnomeVFSResult captive_file_slave_remove(CaptiveFileObject *captive_file_object)
 461 {
 462 CaptiveFileSlaveObject *captive_file_slave_object;
 463 NTSTATUS err;
 464 FILE_DISPOSITION_INFORMATION FileDispositionInformation_struct;
 465 IO_STATUS_BLOCK file_IoStatusBlock;
 466 GnomeVFSResult errvfsresult;
 467
 468         g_return_val_if_fail(CAPTIVE_FILE_SLAVE_IS_OBJECT(captive_file_object),GNOME_VFS_ERROR_BAD_PARAMETERS);
 469
 470         captive_file_slave_object=CAPTIVE_FILE_SLAVE_OBJECT(captive_file_object);
 471
 472         g_return_val_if_fail(captive_file_slave_object->file_Handle!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 473
 474         FileDispositionInformation_struct.DoDeleteFile=TRUE;
 475
 476         err=NtSetInformationFile(
 477                         captive_file_slave_object->file_Handle, /* FileHandle */
 478                         &file_IoStatusBlock,    /* IoStatusBlock */
 479                         &FileDispositionInformation_struct,     /* FileInformation */
 480                         sizeof(FileDispositionInformation_struct),      /* Length */
 481                         FileDispositionInformation);    /* FileInformationClass */
 482         if (GNOME_VFS_OK!=(errvfsresult=captive_NTSTATUS_to_GnomeVFSResult(err)))
 483                 return errvfsresult;
 484         g_return_val_if_fail(NT_SUCCESS(err),GNOME_VFS_ERROR_GENERIC);
 485
 486         captive_leave();
 487         return GNOME_VFS_OK;
 488 }
 489
 490
 491 /* Use 'FileNameInformationStruct' identifier instead of the logical 'FileNameInformation'
 492  * to prevent override of enum member 'FileNameInformation'
 493  */
 494 static GnomeVFSResult FileNameInformationStruct_to_GnomeVFSFileInfo(GnomeVFSFileInfo *file_info,
 495                 FILE_NAME_INFORMATION *FileNameInformationStruct)
 496 {
 497 UNICODE_STRING FileName_UnicodeString;
 498
 499         g_return_val_if_fail(file_info!=NULL,GNOME_VFS_ERROR_GENERIC);
 500         g_return_val_if_fail(FileNameInformationStruct!=NULL,GNOME_VFS_ERROR_GENERIC);
 501
 502         FileName_UnicodeString.Length=FileNameInformationStruct->FileNameLength;
 503         FileName_UnicodeString.MaximumLength=FileNameInformationStruct->FileNameLength
 504                         +sizeof(*FileNameInformationStruct->FileName);  /* 0-terminator */
 505
 506 #if 0   /* 'IoStatusBlock->Information' is sometimes weird, do not check it */
 507         g_assert((gpointer)(((char *)FileNameInformationStruct->FileName)+FileName_UnicodeString.Length)
 508                         <=(gpointer)(((char *)FileAllInformationStruct)+IoStatusBlock->Information));
 509                                         /* ensure we fit below '->IoStatusBlock->Information' at least without the 0-terminator */
 510 #endif
 511
 512         FileNameInformationStruct->FileName[FileNameInformationStruct->FileNameLength
 513                         /sizeof(*FileNameInformationStruct->FileName)]=0;       /* 0-terminate it */
 514         FileName_UnicodeString.Buffer=FileNameInformationStruct->FileName;
 515         file_info->name=captive_UnicodeString_to_utf8_malloc(&FileName_UnicodeString);
 516         /* '->name' assumed for 'file_info->valid_fields' */
 517
 518         return GNOME_VFS_OK;
 519 }
 520
 521
 522 /* Use 'FileBasicInformationStruct' identifier instead of the logical 'FileBasicInformation'
 523  * to prevent override of enum member 'FileBasicInformation'
 524  */
 525 static GnomeVFSResult FileBasicInformationStruct_to_GnomeVFSFileInfo(GnomeVFSFileInfo *file_info,
 526                 FILE_BASIC_INFORMATION *FileBasicInformationStruct)
 527 {
 528 BOOLEAN errBOOLEAN;
 529 ULONG tmp_ULONG;
 530
 531         /* FIXME: What is 'FILE_ATTRIBUTE_NORMAL'? */
 532         switch (FileBasicInformationStruct->FileAttributes & (0
 533                         | FILE_ATTRIBUTE_DIRECTORY
 534                         | FILE_ATTRIBUTE_DEVICE)) {
 535                 case 0:                        file_info->type=GNOME_VFS_FILE_TYPE_REGULAR;   break;
 536                 case FILE_ATTRIBUTE_DIRECTORY: file_info->type=GNOME_VFS_FILE_TYPE_DIRECTORY; break;
 537                 case FILE_ATTRIBUTE_DEVICE:    file_info->type=GNOME_VFS_FILE_TYPE_SOCKET;
 538                         /* or GNOME_VFS_FILE_TYPE_CHARACTER_DEVICE or GNOME_VFS_FILE_TYPE_BLOCK_DEVICE ? */
 539                         break;
 540                 default:                       file_info->type=GNOME_VFS_FILE_TYPE_UNKNOWN;   break;
 541                 }
 542         file_info->valid_fields|=GNOME_VFS_FILE_INFO_FIELDS_TYPE;
 543
 544         /* we use 0600 for r/w files, 0400 for FILE_ATTRIBUTE_READONLY */
 545         file_info->permissions=GNOME_VFS_PERM_USER_READ;
 546         if (file_info->type==GNOME_VFS_FILE_TYPE_DIRECTORY)
 547                 file_info->permissions|=GNOME_VFS_PERM_USER_EXEC;
 548         if (!(FileBasicInformationStruct->FileAttributes & FILE_ATTRIBUTE_READONLY))
 549                 file_info->permissions|=GNOME_VFS_PERM_USER_WRITE;
 550         file_info->valid_fields|=GNOME_VFS_FILE_INFO_FIELDS_PERMISSIONS;
 551
 552         if (FileBasicInformationStruct->LastAccessTime.QuadPart) {      /* it may be 0 if not set */
 553                 errBOOLEAN=RtlTimeToSecondsSince1970(&FileBasicInformationStruct->LastAccessTime,&tmp_ULONG);
 554                 g_assert(errBOOLEAN==TRUE);
 555                 file_info->atime=tmp_ULONG;
 556                 file_info->valid_fields|=GNOME_VFS_FILE_INFO_FIELDS_ATIME;
 557                 }
 558
 559         /* it may be 0 if not set */
 560         if (FileBasicInformationStruct->LastWriteTime.QuadPart || FileBasicInformationStruct->ChangeTime.QuadPart) {
 561                 errBOOLEAN=RtlTimeToSecondsSince1970(
 562                                 /* take the more recent (==bigger) time: */
 563                                 (FileBasicInformationStruct->LastWriteTime.QuadPart > FileBasicInformationStruct->ChangeTime.QuadPart
 564                                                 ? &FileBasicInformationStruct->LastWriteTime : &FileBasicInformationStruct->ChangeTime),
 565                                 &tmp_ULONG);
 566                 g_assert(errBOOLEAN==TRUE);
 567                 file_info->mtime=tmp_ULONG;
 568                 file_info->valid_fields|=GNOME_VFS_FILE_INFO_FIELDS_MTIME;
 569                 }
 570
 571         if (FileBasicInformationStruct->CreationTime.QuadPart) {        /* it may be 0 if not set */
 572                 errBOOLEAN=RtlTimeToSecondsSince1970(&FileBasicInformationStruct->CreationTime,&tmp_ULONG);
 573                 g_assert(errBOOLEAN==TRUE);
 574                 file_info->ctime=tmp_ULONG;
 575                 file_info->valid_fields|=GNOME_VFS_FILE_INFO_FIELDS_CTIME;
 576                 }
 577
 578         return GNOME_VFS_OK;
 579 }
 580
 581
 582 /* Use 'FileStandardInformationStruct' identifier instead of the logical 'FileStandardInformation'
 583  * to prevent override of enum member 'FileStandardInformation'
 584  */
 585 static GnomeVFSResult FileStandardInformationStruct_to_GnomeVFSFileInfo(GnomeVFSFileInfo *file_info,
 586                 FILE_STANDARD_INFORMATION *FileStandardInformationStruct)
 587 {
 588         file_info->size=FileStandardInformationStruct->EndOfFile.QuadPart;
 589         file_info->valid_fields|=GNOME_VFS_FILE_INFO_FIELDS_SIZE;
 590
 591         file_info->block_count=FileStandardInformationStruct->AllocationSize.QuadPart/512;
 592         file_info->valid_fields|=GNOME_VFS_FILE_INFO_FIELDS_BLOCK_COUNT;
 593
 594         return GNOME_VFS_OK;
 595 }
 596
 597
 598 GnomeVFSResult captive_file_slave_file_info_get(CaptiveFileObject *captive_file_object,
 599                 GnomeVFSFileInfo *file_info)
 600 {
 601 CaptiveFileSlaveObject *captive_file_slave_object;
 602 NTSTATUS err;
 603 IO_STATUS_BLOCK file_IoStatusBlock;
 604 FILE_NAME_INFORMATION *FileNameInformationStruct;
 605 FILE_BASIC_INFORMATION *FileBasicInformationStruct;
 606 FILE_STANDARD_INFORMATION *FileStandardInformationStruct;
 607 GnomeVFSResult errvfsresult;
 608 char QueryFile_buf[sizeof(FILE_NAME_INFORMATION)
 609                 +0x1000 /* max 'FileName' length, 255 should be enough */ * sizeof(WCHAR /* *FILE_ALL_INFORMATION.NameInformation.FileName */ )];
 610
 611         g_return_val_if_fail(CAPTIVE_FILE_SLAVE_IS_OBJECT(captive_file_object),GNOME_VFS_ERROR_BAD_PARAMETERS);
 612         g_return_val_if_fail(file_info!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 613
 614         captive_file_slave_object=CAPTIVE_FILE_SLAVE_OBJECT(captive_file_object);
 615
 616         g_return_val_if_fail(captive_file_slave_object->file_Handle!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 617
 618         /* ntfs.sys of NT-5.1sp1 has *(FILE_BASIC_INFORMATION *)FILE_ALL_INFORMATION.BasicInformation
 619          * size 0x28 although reactos includes and all the information says 0x24.
 620          * fastfat.sys of NT-5.1sp1 also has the 'official' sizeof 0x24.
 621          * It would be a bit of heuristic to correctly detect its expected sizeof.
 622          */
 623
 624         file_info->valid_fields=0;
 625
 626         file_info->flags=GNOME_VFS_FILE_FLAGS_LOCAL;
 627         file_info->valid_fields|=GNOME_VFS_FILE_INFO_FIELDS_FLAGS;
 628
 629         /* query NameInformation */
 630         FileNameInformationStruct=(void *)QueryFile_buf;
 631         err=NtQueryInformationFile(
 632                         captive_file_slave_object->file_Handle, /* FileHandle */
 633                         &file_IoStatusBlock,    /* IoStatusBlock */
 634                         (gpointer)QueryFile_buf,        /* FileInformation */
 635                         sizeof(QueryFile_buf)   /* Length */
 636                                         -sizeof(*FileNameInformationStruct->FileName),  /* reserve space for a possible 0-terminator */
 637                         FileNameInformation);   /* FileInformationClass; =>FILE_NAME_INFORMATION */
 638         if (GNOME_VFS_OK!=(errvfsresult=captive_NTSTATUS_to_GnomeVFSResult(err)))
 639                 return errvfsresult;
 640         g_return_val_if_fail(NT_SUCCESS(err)==NT_SUCCESS(file_IoStatusBlock.Status),GNOME_VFS_ERROR_GENERIC);
 641         g_return_val_if_fail(NT_SUCCESS(err),GNOME_VFS_ERROR_GENERIC);
 642         errvfsresult=FileNameInformationStruct_to_GnomeVFSFileInfo(file_info,FileNameInformationStruct);
 643         g_return_val_if_fail(errvfsresult==GNOME_VFS_OK,errvfsresult);
 644
 645         /* query BasicInformation */
 646         FileBasicInformationStruct=(void *)QueryFile_buf;
 647         err=NtQueryInformationFile(
 648                         captive_file_slave_object->file_Handle, /* FileHandle */
 649                         &file_IoStatusBlock,    /* IoStatusBlock */
 650                         (gpointer)QueryFile_buf,        /* FileInformation */
 651                         sizeof(QueryFile_buf),  /* Length */
 652                         FileBasicInformation);  /* FileInformationClass; =>FILE_BASIC_INFORMATION */
 653         if (GNOME_VFS_OK!=(errvfsresult=captive_NTSTATUS_to_GnomeVFSResult(err)))
 654                 return errvfsresult;
 655         g_return_val_if_fail(NT_SUCCESS(err)==NT_SUCCESS(file_IoStatusBlock.Status),GNOME_VFS_ERROR_GENERIC);
 656         g_return_val_if_fail(NT_SUCCESS(err),GNOME_VFS_ERROR_GENERIC);
 657         errvfsresult=FileBasicInformationStruct_to_GnomeVFSFileInfo(file_info,FileBasicInformationStruct);
 658         g_return_val_if_fail(errvfsresult==GNOME_VFS_OK,errvfsresult);
 659
 660         /* query StandardInformation */
 661         FileStandardInformationStruct=(void *)QueryFile_buf;
 662         err=NtQueryInformationFile(
 663                         captive_file_slave_object->file_Handle, /* FileHandle */
 664                         &file_IoStatusBlock,    /* IoStatusBlock */
 665                         (gpointer)QueryFile_buf,        /* FileInformation */
 666                         sizeof(QueryFile_buf),  /* Length */
 667                         FileStandardInformation);       /* FileInformationClass; =>FILE_STANDARD_INFORMATION */
 668         if (GNOME_VFS_OK!=(errvfsresult=captive_NTSTATUS_to_GnomeVFSResult(err)))
 669                 return errvfsresult;
 670         g_return_val_if_fail(NT_SUCCESS(err)==NT_SUCCESS(file_IoStatusBlock.Status),GNOME_VFS_ERROR_GENERIC);
 671         g_return_val_if_fail(NT_SUCCESS(err),GNOME_VFS_ERROR_GENERIC);
 672         errvfsresult=FileStandardInformationStruct_to_GnomeVFSFileInfo(file_info,FileStandardInformationStruct);
 673         g_return_val_if_fail(errvfsresult==GNOME_VFS_OK,errvfsresult);
 674
 675         captive_leave();
 676         return GNOME_VFS_OK;
 677 }
 678
 679
 680 GnomeVFSResult captive_file_slave_file_info_set(CaptiveFileObject *captive_file_object,
 681     const GnomeVFSFileInfo *info,GnomeVFSSetFileInfoMask mask)
 682 {
 683 CaptiveFileSlaveObject *captive_file_slave_object;
 684
 685         g_return_val_if_fail(CAPTIVE_FILE_SLAVE_IS_OBJECT(captive_file_object),GNOME_VFS_ERROR_BAD_PARAMETERS);
 686         g_return_val_if_fail(info!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 687
 688         captive_file_slave_object=CAPTIVE_FILE_SLAVE_OBJECT(captive_file_object);
 689
 690         g_return_val_if_fail(captive_file_slave_object->file_Handle!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 691
 692         if (mask & GNOME_VFS_SET_FILE_INFO_NAME) {
 693 gchar *name_dirname,*name_basename;
 694 UNICODE_STRING *name_UnicodeString;
 695 FILE_RENAME_INFORMATION *FileRenameInformation_structp;
 696 gsize FileRenameInformation_struct_len;
 697 IO_STATUS_BLOCK file_IoStatusBlock;
 698 NTSTATUS err=STATUS_SUCCESS;    /* Prevent: ... might be used uninitialized in this function */
 699 GnomeVFSResult errvfsresult;
 700
 701                 /* non-existing dirname assertion */
 702                 name_dirname=g_path_get_dirname(info->name);
 703                 if (*name_dirname) {
 704                         g_assert_not_reached();
 705                         errvfsresult=GNOME_VFS_ERROR_BAD_PARAMETERS;
 706                         goto err;
 707                         }
 708
 709                 /* fully-matching basename assertion */
 710                 name_basename=g_path_get_basename(info->name);
 711                 if (strcmp(name_basename,info->name)) {
 712                         g_assert_not_reached();
 713                         errvfsresult=GNOME_VFS_ERROR_BAD_PARAMETERS;
 714                         goto err_free_name_dirname;
 715                         }
 716
 717                 name_UnicodeString=captive_utf8_to_UnicodeString_alloca(info->name);
 718                 FileRenameInformation_struct_len=sizeof(*FileRenameInformation_structp)
 719                                 +name_UnicodeString->MaximumLength;     /* ==Length+(0-terminator); is the terminator needed? */
 720
 721                 FileRenameInformation_structp=g_alloca(FileRenameInformation_struct_len);
 722                 FileRenameInformation_structp->Replace=FALSE;
 723                 FileRenameInformation_structp->RootDir=NULL;    /* we do 'simple rename' here */
 724                 FileRenameInformation_structp->FileNameLength=name_UnicodeString->Length;
 725                 memcpy(FileRenameInformation_structp->FileName,name_UnicodeString->Buffer,
 726                                 name_UnicodeString->MaximumLength);     /* ==Length+(0-terminator); is the terminator needed? */
 727
 728                 err=NtSetInformationFile(
 729                                 captive_file_slave_object->file_Handle, /* FileHandle */
 730                                 &file_IoStatusBlock,    /* IoStatusBlock */
 731                                 FileRenameInformation_structp,  /* FileInformation */
 732                                 FileRenameInformation_struct_len,       /* Length */
 733                                 FileRenameInformation); /* FileInformationClass */
 734                 if (GNOME_VFS_OK!=(errvfsresult=captive_NTSTATUS_to_GnomeVFSResult(err)))
 735                         goto err_free_name_basename;
 736
 737 err_free_name_basename:
 738                 g_free(name_basename);
 739 err_free_name_dirname:
 740                 g_free(name_dirname);
 741 err:
 742
 743                 if (errvfsresult!=GNOME_VFS_OK)
 744                         return errvfsresult;
 745                 g_return_val_if_fail(NT_SUCCESS(err),GNOME_VFS_ERROR_GENERIC);
 746                 }
 747
 748         if (mask & (GNOME_VFS_SET_FILE_INFO_PERMISSIONS | GNOME_VFS_SET_FILE_INFO_TIME)) {
 749 char FileBasicInformation_buf[sizeof(FILE_BASIC_INFORMATION)+4];
 750 FILE_BASIC_INFORMATION *FileBasicInformationp=(FILE_BASIC_INFORMATION *)FileBasicInformation_buf;
 751 IO_STATUS_BLOCK file_IoStatusBlock;
 752 NTSTATUS err;
 753
 754                 /* FIXME: Everywhere is is the declaration with 4xLARGE_INTEGER+1xULONG==36 bytes
 755                  * but the precompiled ext2fsd.sys wants 40 bytes - why?
 756                  * The same case applies to ntfs.sys of NT-5.1sp1.
 757                  */
 758                 g_assert(sizeof(FILE_BASIC_INFORMATION)==36);
 759                 g_assert(sizeof(FileBasicInformation_buf)==40);
 760                 err=NtQueryInformationFile(
 761                                 captive_file_slave_object->file_Handle, /* FileHandle */
 762                                 &file_IoStatusBlock,    /* IoStatusBlock */
 763                                 FileBasicInformation_buf,       /* FileInformation */
 764                                 sizeof(FileBasicInformation_buf),       /* Length */
 765                                 FileBasicInformation);  /* FileInformationClass */
 766                 g_return_val_if_fail(NT_SUCCESS(err),GNOME_VFS_ERROR_GENERIC);
 767
 768                 if (mask & GNOME_VFS_SET_FILE_INFO_PERMISSIONS) {
 769                         FileBasicInformationp->FileAttributes&=~FILE_ATTRIBUTE_READONLY;
 770                         g_assert(info->valid_fields & GNOME_VFS_FILE_INFO_FIELDS_PERMISSIONS);
 771                         if (!(info->permissions&0200))
 772                                 FileBasicInformationp->FileAttributes|=FILE_ATTRIBUTE_READONLY;
 773                         }
 774
 775                 if (mask & GNOME_VFS_SET_FILE_INFO_TIME) {
 776                         g_assert(info->valid_fields & (0
 777                                         | GNOME_VFS_FILE_INFO_FIELDS_ATIME
 778                                         | GNOME_VFS_FILE_INFO_FIELDS_MTIME));
 779                         /* !GNOME_VFS_FILE_INFO_FIELDS_CTIME is used by FUSE op_utime(). */
 780                         if (info->valid_fields&GNOME_VFS_FILE_INFO_FIELDS_ATIME) {
 781                                 RtlSecondsSince1970ToTime(
 782                                                 info->atime,    /* SecondsSince1970 */
 783                                                 &FileBasicInformationp->LastAccessTime);        /* Time */
 784                                 }
 785                         if (info->valid_fields&GNOME_VFS_FILE_INFO_FIELDS_MTIME) {
 786                                 RtlSecondsSince1970ToTime(
 787                                                 info->mtime,    /* SecondsSince1970 */
 788                                                 &FileBasicInformationp->LastWriteTime); /* Time */
 789                                 FileBasicInformationp->ChangeTime=FileBasicInformationp->LastWriteTime;
 790                                 }
 791                         if (info->valid_fields&GNOME_VFS_FILE_INFO_FIELDS_CTIME) {
 792                                 RtlSecondsSince1970ToTime(
 793                                                 info->ctime,    /* SecondsSince1970 */
 794                                                 &FileBasicInformationp->CreationTime);  /* Time */
 795                                 }
 796                         }
 797
 798                 err=NtSetInformationFile(
 799                                 captive_file_slave_object->file_Handle, /* FileHandle */
 800                                 &file_IoStatusBlock,    /* IoStatusBlock */
 801                                 FileBasicInformation_buf,       /* FileInformation */
 802                                 sizeof(FileBasicInformation_buf),       /* Length */
 803                                 FileBasicInformation);  /* FileInformationClass */
 804                 g_return_val_if_fail(NT_SUCCESS(err),GNOME_VFS_ERROR_GENERIC);
 805                 }
 806
 807         if (mask & GNOME_VFS_SET_FILE_INFO_OWNER) {
 808                 /* FIXME: g_assert(info->valid_fields & ???); */
 809                 /* owner ignored for W32 */
 810                 }
 811
 812         captive_leave();
 813         return GNOME_VFS_OK;
 814 }
 815
 816
 817 GnomeVFSResult captive_file_slave_truncate(CaptiveFileObject *captive_file_object,GnomeVFSFileSize file_size)
 818 {
 819 CaptiveFileSlaveObject *captive_file_slave_object;
 820 NTSTATUS err;
 821 FILE_END_OF_FILE_INFORMATION FileEndOfFileInformation_struct;
 822 IO_STATUS_BLOCK file_IoStatusBlock;
 823 GnomeVFSResult errvfsresult;
 824
 825         g_return_val_if_fail(CAPTIVE_FILE_SLAVE_IS_OBJECT(captive_file_object),GNOME_VFS_ERROR_BAD_PARAMETERS);
 826
 827         captive_file_slave_object=CAPTIVE_FILE_SLAVE_OBJECT(captive_file_object);
 828
 829         g_return_val_if_fail(captive_file_slave_object->file_Handle!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 830
 831         FileEndOfFileInformation_struct.EndOfFile.QuadPart=file_size;
 832
 833         err=NtSetInformationFile(
 834                         captive_file_slave_object->file_Handle, /* FileHandle */
 835                         &file_IoStatusBlock,    /* IoStatusBlock */
 836                         &FileEndOfFileInformation_struct,       /* FileInformation */
 837                         sizeof(FileEndOfFileInformation_struct),        /* Length */
 838                         FileEndOfFileInformation);      /* FileInformationClass */
 839         if (GNOME_VFS_OK!=(errvfsresult=captive_NTSTATUS_to_GnomeVFSResult(err)))
 840                 return errvfsresult;
 841         g_return_val_if_fail(NT_SUCCESS(err),GNOME_VFS_ERROR_GENERIC);
 842
 843         captive_leave();
 844         return GNOME_VFS_OK;
 845 }
 846
 847
 848 GnomeVFSResult captive_file_slave_move
 849                 (CaptiveFileObject *captive_file_object_old,const gchar *pathname_new,gboolean force_replace)
 850 {
 851 CaptiveFileSlaveObject *captive_file_slave_object_old;
 852 NTSTATUS err;
 853 FILE_RENAME_INFORMATION *FileRenameInformation_structp;
 854 IO_STATUS_BLOCK file_IoStatusBlock;
 855 GnomeVFSResult errvfsresult;
 856 OBJECT_ATTRIBUTES pathname_new_ObjectAttributes;
 857
 858         g_return_val_if_fail(CAPTIVE_FILE_SLAVE_IS_OBJECT(captive_file_object_old),GNOME_VFS_ERROR_BAD_PARAMETERS);
 859         g_return_val_if_fail(pathname_new!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 860
 861         captive_file_slave_object_old=CAPTIVE_FILE_SLAVE_OBJECT(captive_file_object_old);
 862
 863         g_return_val_if_fail(captive_file_slave_object_old->file_Handle!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 864
 865         errvfsresult=captive_ObjectAttributes_init(pathname_new,&pathname_new_ObjectAttributes);
 866         g_return_val_if_fail(errvfsresult==GNOME_VFS_OK,errvfsresult);
 867
 868         FileRenameInformation_structp=
 869                         g_alloca(sizeof(*FileRenameInformation_structp)+pathname_new_ObjectAttributes.ObjectName->MaximumLength);
 870         FileRenameInformation_structp->Replace=force_replace;
 871         FileRenameInformation_structp->RootDir=0;       /* AFAIK never set by orig W32 */
 872         FileRenameInformation_structp->FileNameLength=pathname_new_ObjectAttributes.ObjectName->Length;
 873         memcpy(FileRenameInformation_structp->FileName,pathname_new_ObjectAttributes.ObjectName->Buffer,
 874                         pathname_new_ObjectAttributes.ObjectName->MaximumLength);
 875
 876         err=NtSetInformationFile(
 877                         captive_file_slave_object_old->file_Handle,     /* FileHandle */
 878                         &file_IoStatusBlock,    /* IoStatusBlock */
 879                         FileRenameInformation_structp,  /* FileInformation */
 880                         sizeof(*FileRenameInformation_structp)+pathname_new_ObjectAttributes.ObjectName->MaximumLength, /* Length */
 881                         FileRenameInformation); /* FileInformationClass */
 882         if (GNOME_VFS_OK!=(errvfsresult=captive_NTSTATUS_to_GnomeVFSResult(err)))
 883                 goto err_free_ObjectAttributes;
 884         g_return_val_if_fail(NT_SUCCESS(err),GNOME_VFS_ERROR_GENERIC);
 885
 886         errvfsresult=GNOME_VFS_OK;
 887
 888 err_free_ObjectAttributes:
 889         g_free(pathname_new_ObjectAttributes.ObjectName);       /* left from captive_file_slave_uri_parent_init() */
 890
 891         captive_leave();
 892         return errvfsresult;
 893 }