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 #include "../cc/sharedcachemap.h"
  41
  42
  43 /* Config: */
  44 #define MAX_FILE_READ   0x8000000       /* FIXME: Workaround memory consumption for non-journalled fastfat.sys */
  45 #define MAX_FILE_WRITTEN 0x100000       /* FIXME: Workaround memory consumption for non-journalled fastfat.sys */
  46
  47
  48 struct _CaptiveFileSlaveObject {
  49         CaptiveFileObject parent_instance;
  50
  51         /*< private >*/
  52         HANDLE file_Handle;
  53         GnomeVFSFileOffset offset;
  54         };
  55 struct _CaptiveFileSlaveObjectClass {
  56         CaptiveFileObjectClass parent_class;
  57         };
  58
  59
  60 static gpointer captive_file_slave_object_parent_class=NULL;
  61
  62
  63 static GnomeVFSResult captive_file_slave_close(CaptiveFileObject *captive_file_object);
  64 static GnomeVFSResult captive_file_slave_read(CaptiveFileObject *captive_file_object,
  65                 gpointer buffer,GnomeVFSFileSize num_bytes,GnomeVFSFileSize *bytes_read_return);
  66 static GnomeVFSResult captive_file_slave_write(CaptiveFileObject *captive_file_object,
  67                 gconstpointer buffer,GnomeVFSFileSize num_bytes,GnomeVFSFileSize *bytes_written_return);
  68 static GnomeVFSResult captive_file_slave_seek
  69                 (CaptiveFileObject *captive_file_object,GnomeVFSSeekPosition whence,GnomeVFSFileOffset offset);
  70 static GnomeVFSResult captive_file_slave_tell(CaptiveFileObject *captive_file_object,GnomeVFSFileOffset *offset_return);
  71 static GnomeVFSResult captive_file_slave_remove(CaptiveFileObject *captive_file_object);
  72 static GnomeVFSResult captive_file_slave_file_info_get
  73                 (CaptiveFileObject *captive_file_object,GnomeVFSFileInfo *file_info);
  74 static GnomeVFSResult captive_file_slave_file_info_set
  75                 (CaptiveFileObject *captive_file_object,const GnomeVFSFileInfo *info,GnomeVFSSetFileInfoMask mask);
  76 static GnomeVFSResult captive_file_slave_truncate(CaptiveFileObject *captive_file_object,GnomeVFSFileSize file_size);
  77 static GnomeVFSResult captive_file_slave_move
  78                 (CaptiveFileObject *captive_file_object_old,const gchar *pathname_new,gboolean force_replace);
  79
  80
  81 static void captive_file_slave_object_finalize(CaptiveFileSlaveObject *captive_file_slave_object)
  82 {
  83         g_return_if_fail(captive_file_slave_object!=NULL);
  84
  85         captive_file_slave_close(CAPTIVE_FILE_OBJECT(captive_file_slave_object));       /* errors ignored */
  86
  87         G_OBJECT_CLASS(captive_file_slave_object_parent_class)->finalize((GObject *)captive_file_slave_object);
  88 }
  89
  90
  91 static void captive_file_slave_object_class_init(CaptiveFileSlaveObjectClass *class)
  92 {
  93 GObjectClass *gobject_class=G_OBJECT_CLASS(class);
  94 CaptiveFileObjectClass *captive_file_object_class=CAPTIVE_FILE_OBJECT_CLASS(class);
  95
  96         captive_file_slave_object_parent_class=g_type_class_ref(g_type_parent(G_TYPE_FROM_CLASS(class)));
  97         gobject_class->finalize=(void (*)(GObject *object))captive_file_slave_object_finalize;
  98
  99         captive_file_object_class->read=captive_file_slave_read;
 100         captive_file_object_class->write=captive_file_slave_write;
 101         captive_file_object_class->seek=captive_file_slave_seek;
 102         captive_file_object_class->tell=captive_file_slave_tell;
 103         captive_file_object_class->remove=captive_file_slave_remove;
 104         captive_file_object_class->file_info_get=captive_file_slave_file_info_get;
 105         captive_file_object_class->file_info_set=captive_file_slave_file_info_set;
 106         captive_file_object_class->truncate=captive_file_slave_truncate;
 107         captive_file_object_class->move=captive_file_slave_move;
 108 }
 109
 110
 111 static void captive_file_slave_object_init(CaptiveFileSlaveObject *captive_file_slave_object)
 112 {
 113         captive_file_slave_object->file_Handle=NULL;
 114 }
 115
 116
 117 GType captive_file_slave_object_get_type(void)
 118 {
 119 static GType captive_file_slave_object_type=0;
 120
 121         if (!captive_file_slave_object_type) {
 122 static const GTypeInfo captive_file_slave_object_info={
 123                                 sizeof(CaptiveFileSlaveObjectClass),
 124                                 NULL,   /* base_init */
 125                                 NULL,   /* base_finalize */
 126                                 (GClassInitFunc)captive_file_slave_object_class_init,
 127                                 NULL,   /* class_finalize */
 128                                 NULL,   /* class_data */
 129                                 sizeof(CaptiveFileSlaveObject),
 130                                 5,      /* n_preallocs */
 131                                 (GInstanceInitFunc)captive_file_slave_object_init,
 132                                 };
 133
 134                 captive_file_slave_object_type=g_type_register_static(CAPTIVE_FILE_TYPE_OBJECT,
 135                                 "CaptiveFileSlaveObject",&captive_file_slave_object_info,0);
 136                 }
 137
 138         return captive_file_slave_object_type;
 139 }
 140
 141
 142 static GnomeVFSResult captive_file_slave_new_internal(CaptiveFileSlaveObject *captive_file_slave_object,
 143                 const gchar *pathname,GnomeVFSOpenMode mode,gboolean create,gboolean create_exclusive,guint create_perm)
 144 {
 145 IO_STATUS_BLOCK file_IoStatusBlock;
 146 GnomeVFSResult errvfsresult;
 147 OBJECT_ATTRIBUTES file_ObjectAttributes;
 148 HANDLE file_Handle;
 149 NTSTATUS err;
 150
 151         g_return_val_if_fail(captive_file_slave_object!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 152         g_return_val_if_fail(pathname!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 153
 154         if (captive_shared_cache_map_restart_needed())
 155                 return GNOME_VFS_ERROR_SERVICE_OBSOLETE;
 156
 157         errvfsresult=captive_ObjectAttributes_init(pathname,&file_ObjectAttributes);
 158         g_return_val_if_fail(errvfsresult==GNOME_VFS_OK,errvfsresult);
 159
 160         /* open */
 161         err=IoCreateFile(
 162                         &file_Handle,   /* FileHandle */
 163                         0
 164                                         /* sniffed: | SYNCHRONIZE       */
 165                                         |(!(mode&GNOME_VFS_OPEN_READ ) ? 0 : FILE_READ_DATA)
 166                                         |(!(mode&GNOME_VFS_OPEN_WRITE) ? 0 : FILE_WRITE_DATA | FILE_APPEND_DATA | FILE_WRITE_ATTRIBUTES)
 167                                         |(  mode!=0                    ? 0 : FILE_READ_ATTRIBUTES)
 168                                         ,       /* DesiredAccess */
 169                         &file_ObjectAttributes, /* ObjectAttributes */
 170                         &file_IoStatusBlock,    /* IoStatusBlock */
 171                         NULL,   /* AllocationSize; ignored for open */
 172                         (!create || create_perm&0200 ? FILE_ATTRIBUTE_NORMAL: FILE_ATTRIBUTE_READONLY), /* FileAttributes; ignored for open */
 173                         (!create || !create_exclusive   /* ShareAccess; 0 means exclusive */
 174                                         ? (FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE)
 175                                         : 0),
 176                         (!create ? FILE_OPEN : FILE_CREATE),    /* CreateDisposition */
 177                         /* FILE_SYNCHRONOUS_IO_{,NON}ALERT: We need to allow W32 filesystem
 178                                  * any waits to not to let it return STATUS_CANT_WAIT us.
 179                                  * Alertability should have only effect on asynchronous events
 180                                  * from KeWaitForSingleObject() by setting/clearing its parameter 'Alertable'.
 181                                  */
 182                         FILE_SYNCHRONOUS_IO_ALERT       /* CreateOptions */
 183                                         /* sniffed: | FILE_DIRECTORY_FILE */
 184                                         /* sniffed: | FILE_OPEN_FOR_BACKUP_INTENT */
 185                                         ,
 186                         NULL,   /* EaBuffer */
 187                         0,      /* EaLength */
 188                         CreateFileTypeNone,     /* CreateFileType */
 189                         NULL,   /* ExtraCreateParameters */
 190                         0);     /* Options */
 191         g_free(file_ObjectAttributes.ObjectName);       /* left from captive_file_slave_uri_parent_init() */
 192         g_return_val_if_fail(NT_SUCCESS(err)==NT_SUCCESS(file_IoStatusBlock.Status),GNOME_VFS_ERROR_GENERIC);
 193         if (GNOME_VFS_OK!=(errvfsresult=captive_NTSTATUS_to_GnomeVFSResult(err)))
 194                 return errvfsresult;
 195         g_return_val_if_fail(NT_SUCCESS(err),GNOME_VFS_ERROR_GENERIC);
 196         g_return_val_if_fail(file_IoStatusBlock.Information
 197                                         ==(!create ? FILE_OPENED : FILE_CREATED),
 198                         GNOME_VFS_ERROR_GENERIC);
 199
 200         captive_file_slave_object->file_Handle=file_Handle;
 201
 202         return GNOME_VFS_OK;
 203 }
 204
 205
 206 GnomeVFSResult captive_file_slave_new_open(CaptiveFileObject **captive_file_object_return,
 207                 CaptiveVfsObject *captive_vfs_object,const gchar *pathname,GnomeVFSOpenMode mode)
 208 {
 209 GnomeVFSResult r;
 210 CaptiveFileSlaveObject *captive_file_slave_object;
 211
 212         g_return_val_if_fail(captive_file_object_return!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 213         g_return_val_if_fail(CAPTIVE_VFS_SLAVE_IS_OBJECT(captive_vfs_object),GNOME_VFS_ERROR_BAD_PARAMETERS);
 214         g_return_val_if_fail(pathname!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 215
 216         captive_file_slave_object=g_object_new(
 217                         CAPTIVE_FILE_SLAVE_TYPE_OBJECT, /* object_type */
 218                         NULL);  /* first_property_name; FIXME: support properties */
 219
 220         captive_file_init(CAPTIVE_FILE_OBJECT(captive_file_slave_object),captive_vfs_object);
 221
 222         *captive_file_object_return=CAPTIVE_FILE_OBJECT(captive_file_slave_object);
 223
 224         r=captive_file_slave_new_internal(captive_file_slave_object,pathname,mode,
 225                         FALSE,  /* create */
 226                         FALSE,  /* create_exclusive; ignored */
 227                         0);     /* create_perm; ignored */
 228
 229         captive_leave();
 230         if (r==GNOME_VFS_OK)
 231                 captive_usecount(+1);
 232         else {
 233                 g_object_unref(captive_file_slave_object);
 234                 *captive_file_object_return=NULL;
 235                 }
 236         return r;
 237 }
 238
 239
 240 GnomeVFSResult captive_file_slave_new_create(CaptiveFileObject **captive_file_object_return,
 241                 CaptiveVfsObject *captive_vfs_object,const gchar *pathname,GnomeVFSOpenMode mode,gboolean exclusive,guint perm)
 242 {
 243 GnomeVFSResult r;
 244 CaptiveFileSlaveObject *captive_file_slave_object;
 245
 246         g_return_val_if_fail(captive_file_object_return!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 247         g_return_val_if_fail(CAPTIVE_VFS_SLAVE_IS_OBJECT(captive_vfs_object),GNOME_VFS_ERROR_BAD_PARAMETERS);
 248         g_return_val_if_fail(pathname!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 249
 250         captive_file_slave_object=g_object_new(
 251                         CAPTIVE_FILE_SLAVE_TYPE_OBJECT, /* object_type */
 252                         NULL);  /* first_property_name; FIXME: support properties */
 253
 254         captive_file_init(CAPTIVE_FILE_OBJECT(captive_file_slave_object),captive_vfs_object);
 255
 256         *captive_file_object_return=CAPTIVE_FILE_OBJECT(captive_file_slave_object);
 257
 258         r=captive_file_slave_new_internal(captive_file_slave_object,pathname,mode,
 259                         TRUE,   /* create */
 260                         exclusive,      /* create_exclusive */
 261                         perm);  /* create_perm */
 262
 263         captive_leave();
 264         if (r==GNOME_VFS_OK)
 265                 captive_usecount(+1);
 266         else {
 267                 g_object_unref(captive_file_slave_object);
 268                 *captive_file_object_return=NULL;
 269                 }
 270         return r;
 271 }
 272
 273
 274 static GnomeVFSResult captive_file_slave_close(CaptiveFileObject *captive_file_object)
 275 {
 276 CaptiveFileSlaveObject *captive_file_slave_object;
 277 NTSTATUS err;
 278 HANDLE file_Handle;
 279
 280         g_return_val_if_fail(CAPTIVE_FILE_SLAVE_IS_OBJECT(captive_file_object),GNOME_VFS_ERROR_BAD_PARAMETERS);
 281
 282         captive_file_slave_object=CAPTIVE_FILE_SLAVE_OBJECT(captive_file_object);
 283
 284         if (captive_file_slave_object->file_Handle!=NULL) {     /* not yet already closed */
 285                 captive_usecount(-1);   /* close() errors notwithstanding */
 286
 287                 file_Handle=captive_file_slave_object->file_Handle;
 288                 captive_file_slave_object->file_Handle=NULL;
 289                 err=NtClose(file_Handle);
 290                 g_return_val_if_fail(NT_SUCCESS(err),GNOME_VFS_ERROR_GENERIC);
 291                 }
 292
 293         captive_leave();
 294         return GNOME_VFS_OK;
 295 }
 296
 297
 298 GnomeVFSResult captive_file_slave_read(CaptiveFileObject *captive_file_object,
 299                 gpointer buffer,GnomeVFSFileSize num_bytes,GnomeVFSFileSize *bytes_read_return)
 300 {
 301 CaptiveFileSlaveObject *captive_file_slave_object;
 302 NTSTATUS err;
 303 IO_STATUS_BLOCK file_IoStatusBlock;
 304 LARGE_INTEGER file_offset;
 305 GnomeVFSResult errvfsresult;
 306 static GnomeVFSFileSize total_read=0;
 307
 308         g_return_val_if_fail(CAPTIVE_FILE_SLAVE_IS_OBJECT(captive_file_object),GNOME_VFS_ERROR_BAD_PARAMETERS);
 309         g_return_val_if_fail(buffer!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 310         g_return_val_if_fail(bytes_read_return!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 311         g_return_val_if_fail(num_bytes==(ULONG)num_bytes,GNOME_VFS_ERROR_BAD_PARAMETERS);
 312
 313         captive_file_slave_object=CAPTIVE_FILE_SLAVE_OBJECT(captive_file_object);
 314
 315         g_return_val_if_fail(captive_file_slave_object->file_Handle!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 316
 317         /* FIXME: Workaround memory consumption for non-journalled fastfat.sys */
 318         if (total_read>=MAX_FILE_READ && captive_options->sandbox)
 319                 return GNOME_VFS_ERROR_SERVICE_OBSOLETE;
 320         total_read+=num_bytes;
 321
 322         file_offset.QuadPart=captive_file_slave_object->offset;
 323         err=NtReadFile(
 324                         captive_file_slave_object->file_Handle, /* FileHandle */
 325                         NULL,   /* EventHandle; completion signalling; optional */
 326                         NULL,   /* ApcRoutine; optional */
 327                         NULL,   /* ApcContext; optional */
 328                         &file_IoStatusBlock,    /* IoStatusBlock */
 329                         buffer, /* Buffer */
 330                         num_bytes,      /* Length */
 331                         &file_offset,   /* ByteOffset */
 332                         NULL);  /* Key; NULL means no file locking key */
 333         if (err==STATUS_END_OF_FILE) {
 334                 g_return_val_if_fail(file_IoStatusBlock.Status==STATUS_END_OF_FILE,GNOME_VFS_ERROR_GENERIC);
 335                 g_return_val_if_fail(file_IoStatusBlock.Information==0,GNOME_VFS_ERROR_GENERIC);
 336                 *bytes_read_return=0;
 337                 return GNOME_VFS_ERROR_EOF;
 338                 }
 339         g_return_val_if_fail(file_IoStatusBlock.Information>0,GNOME_VFS_ERROR_GENERIC); /* if not STATUS_END_OF_FILE... */
 340         if (GNOME_VFS_OK!=(errvfsresult=captive_NTSTATUS_to_GnomeVFSResult(err)))
 341                 return errvfsresult;
 342         g_return_val_if_fail(NT_SUCCESS(err)==NT_SUCCESS(file_IoStatusBlock.Status),GNOME_VFS_ERROR_GENERIC);
 343         g_return_val_if_fail(NT_SUCCESS(err),GNOME_VFS_ERROR_GENERIC);
 344         g_return_val_if_fail(file_IoStatusBlock.Information<=num_bytes,GNOME_VFS_ERROR_GENERIC);
 345
 346         captive_file_slave_object->offset+=file_IoStatusBlock.Information;
 347         *bytes_read_return=file_IoStatusBlock.Information;
 348         captive_leave();
 349         return GNOME_VFS_OK;
 350 }
 351
 352
 353 GnomeVFSResult captive_file_slave_write(CaptiveFileObject *captive_file_object,
 354                 gconstpointer buffer,GnomeVFSFileSize num_bytes,GnomeVFSFileSize *bytes_written_return)
 355 {
 356 CaptiveFileSlaveObject *captive_file_slave_object;
 357 NTSTATUS err;
 358 IO_STATUS_BLOCK file_IoStatusBlock;
 359 LARGE_INTEGER file_offset;
 360 GnomeVFSFileInfo file_info;
 361 GnomeVFSFileSize endoffile_wanted;
 362 GnomeVFSResult errvfsresult;
 363 static GnomeVFSFileSize total_written=0;
 364
 365         g_return_val_if_fail(CAPTIVE_FILE_SLAVE_IS_OBJECT(captive_file_object),GNOME_VFS_ERROR_BAD_PARAMETERS);
 366         g_return_val_if_fail(buffer!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 367         g_return_val_if_fail(bytes_written_return!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 368         g_return_val_if_fail(num_bytes==(ULONG)num_bytes,GNOME_VFS_ERROR_BAD_PARAMETERS);
 369
 370         captive_file_slave_object=CAPTIVE_FILE_SLAVE_OBJECT(captive_file_object);
 371
 372         g_return_val_if_fail(captive_file_slave_object->file_Handle!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 373
 374         /* FIXME: Workaround memory consumption for non-journalled fastfat.sys */
 375         if (total_written>=MAX_FILE_WRITTEN && captive_options->sandbox)
 376                 return GNOME_VFS_ERROR_SERVICE_OBSOLETE;
 377         total_written+=num_bytes;
 378
 379         if ((GnomeVFSFileOffset)(captive_file_slave_object->offset+num_bytes) < captive_file_slave_object->offset)
 380                 return GNOME_VFS_ERROR_TOO_BIG;
 381         endoffile_wanted=captive_file_slave_object->offset+num_bytes;
 382         if (GNOME_VFS_OK!=(errvfsresult=captive_file_slave_file_info_get(
 383                         CAPTIVE_FILE_OBJECT(captive_file_slave_object),&file_info)))
 384                 return errvfsresult;
 385         if (file_info.size<endoffile_wanted) {
 386                 if (GNOME_VFS_OK!=(errvfsresult=captive_file_slave_truncate(
 387                                 CAPTIVE_FILE_OBJECT(captive_file_slave_object),endoffile_wanted)))
 388                         return errvfsresult;
 389                 }
 390
 391         file_offset.QuadPart=captive_file_slave_object->offset;
 392         err=NtWriteFile(
 393                         captive_file_slave_object->file_Handle, /* FileHandle */
 394                         NULL,   /* Event; completion signalling; optional */
 395                         NULL,   /* ApcRoutine; optional */
 396                         NULL,   /* ApcContext; optional */
 397                         &file_IoStatusBlock,    /* IoStatusBlock */
 398                         (gpointer /* de-const */ )buffer,       /* Buffer */
 399                         num_bytes,      /* Length */
 400                         &file_offset,   /* ByteOffset */
 401                         NULL);  /* Key; NULL means no file locking key */
 402         g_return_val_if_fail(NT_SUCCESS(err)==NT_SUCCESS(file_IoStatusBlock.Status),GNOME_VFS_ERROR_GENERIC);
 403         g_return_val_if_fail(NT_SUCCESS(err),GNOME_VFS_ERROR_GENERIC);
 404         if (!file_IoStatusBlock.Information) {
 405                 /* FIXME: Check ExRaiseStatus(STATUS_LOG_FILE_FULL);
 406                  * really occured. We expect so and we will remount the volume.
 407                  */
 408                 *bytes_written_return=0;
 409                 return GNOME_VFS_ERROR_SERVICE_OBSOLETE;
 410                 }
 411         g_return_val_if_fail(file_IoStatusBlock.Information==num_bytes,GNOME_VFS_ERROR_GENERIC);
 412
 413         captive_file_slave_object->offset+=file_IoStatusBlock.Information;
 414         *bytes_written_return=file_IoStatusBlock.Information;
 415         captive_leave();
 416         return GNOME_VFS_OK;
 417 }
 418
 419
 420 GnomeVFSResult captive_file_slave_seek
 421                 (CaptiveFileObject *captive_file_object,GnomeVFSSeekPosition whence,GnomeVFSFileOffset offset)
 422 {
 423 CaptiveFileSlaveObject *captive_file_slave_object;
 424
 425         g_return_val_if_fail(CAPTIVE_FILE_SLAVE_IS_OBJECT(captive_file_object),GNOME_VFS_ERROR_BAD_PARAMETERS);
 426
 427         captive_file_slave_object=CAPTIVE_FILE_SLAVE_OBJECT(captive_file_object);
 428
 429         g_return_val_if_fail(captive_file_slave_object->file_Handle!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 430
 431         switch (whence) {
 432                 case GNOME_VFS_SEEK_START:
 433                         captive_file_slave_object->offset=offset;
 434                         break;
 435                 case GNOME_VFS_SEEK_CURRENT:
 436                         if (0
 437                                         || (offset>0 && (captive_file_slave_object->offset+offset)<captive_file_slave_object->offset)
 438                                         || (offset<0 && (captive_file_slave_object->offset+offset)>captive_file_slave_object->offset))
 439                                 return GNOME_VFS_ERROR_BAD_PARAMETERS;
 440                         captive_file_slave_object->offset+=offset;
 441                         break;
 442                 case GNOME_VFS_SEEK_END:
 443                         g_assert_not_reached(); /* NOT IMPLEMENTED YET */
 444                         break;
 445                 default:
 446                         g_return_val_if_reached(GNOME_VFS_ERROR_BAD_PARAMETERS);
 447                 }
 448
 449         captive_leave();
 450         return GNOME_VFS_OK;
 451 }
 452
 453
 454 GnomeVFSResult captive_file_slave_tell(CaptiveFileObject *captive_file_object,GnomeVFSFileOffset *offset_return)
 455 {
 456 CaptiveFileSlaveObject *captive_file_slave_object;
 457
 458         g_return_val_if_fail(CAPTIVE_FILE_SLAVE_IS_OBJECT(captive_file_object),GNOME_VFS_ERROR_BAD_PARAMETERS);
 459         g_return_val_if_fail(offset_return!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 460
 461         captive_file_slave_object=CAPTIVE_FILE_SLAVE_OBJECT(captive_file_object);
 462
 463         g_return_val_if_fail(captive_file_slave_object->file_Handle!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 464
 465         *offset_return=captive_file_slave_object->offset;
 466         captive_leave();
 467         return GNOME_VFS_OK;
 468 }
 469
 470
 471 GnomeVFSResult captive_file_slave_remove(CaptiveFileObject *captive_file_object)
 472 {
 473 CaptiveFileSlaveObject *captive_file_slave_object;
 474 NTSTATUS err;
 475 FILE_DISPOSITION_INFORMATION FileDispositionInformation_struct;
 476 IO_STATUS_BLOCK file_IoStatusBlock;
 477 GnomeVFSResult errvfsresult;
 478
 479         g_return_val_if_fail(CAPTIVE_FILE_SLAVE_IS_OBJECT(captive_file_object),GNOME_VFS_ERROR_BAD_PARAMETERS);
 480
 481         captive_file_slave_object=CAPTIVE_FILE_SLAVE_OBJECT(captive_file_object);
 482
 483         g_return_val_if_fail(captive_file_slave_object->file_Handle!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 484
 485         FileDispositionInformation_struct.DoDeleteFile=TRUE;
 486
 487         err=NtSetInformationFile(
 488                         captive_file_slave_object->file_Handle, /* FileHandle */
 489                         &file_IoStatusBlock,    /* IoStatusBlock */
 490                         &FileDispositionInformation_struct,     /* FileInformation */
 491                         sizeof(FileDispositionInformation_struct),      /* Length */
 492                         FileDispositionInformation);    /* FileInformationClass */
 493         if (GNOME_VFS_OK!=(errvfsresult=captive_NTSTATUS_to_GnomeVFSResult(err)))
 494                 return errvfsresult;
 495         g_return_val_if_fail(NT_SUCCESS(err),GNOME_VFS_ERROR_GENERIC);
 496
 497         captive_leave();
 498         return GNOME_VFS_OK;
 499 }
 500
 501
 502 /* Use 'FileNameInformationStruct' identifier instead of the logical 'FileNameInformation'
 503  * to prevent override of enum member 'FileNameInformation'
 504  */
 505 static GnomeVFSResult FileNameInformationStruct_to_GnomeVFSFileInfo(GnomeVFSFileInfo *file_info,
 506                 FILE_NAME_INFORMATION *FileNameInformationStruct)
 507 {
 508 UNICODE_STRING FileName_UnicodeString;
 509
 510         g_return_val_if_fail(file_info!=NULL,GNOME_VFS_ERROR_GENERIC);
 511         g_return_val_if_fail(FileNameInformationStruct!=NULL,GNOME_VFS_ERROR_GENERIC);
 512
 513         FileName_UnicodeString.Length=FileNameInformationStruct->FileNameLength;
 514         FileName_UnicodeString.MaximumLength=FileNameInformationStruct->FileNameLength
 515                         +sizeof(*FileNameInformationStruct->FileName);  /* 0-terminator */
 516
 517 #if 0   /* 'IoStatusBlock->Information' is sometimes weird, do not check it */
 518         g_assert((gpointer)(((char *)FileNameInformationStruct->FileName)+FileName_UnicodeString.Length)
 519                         <=(gpointer)(((char *)FileAllInformationStruct)+IoStatusBlock->Information));
 520                                         /* ensure we fit below '->IoStatusBlock->Information' at least without the 0-terminator */
 521 #endif
 522
 523         FileNameInformationStruct->FileName[FileNameInformationStruct->FileNameLength
 524                         /sizeof(*FileNameInformationStruct->FileName)]=0;       /* 0-terminate it */
 525         FileName_UnicodeString.Buffer=FileNameInformationStruct->FileName;
 526         file_info->name=captive_UnicodeString_to_utf8_malloc(&FileName_UnicodeString);
 527         /* '->name' assumed for 'file_info->valid_fields' */
 528
 529         return GNOME_VFS_OK;
 530 }
 531
 532
 533 /* Use 'FileBasicInformationStruct' identifier instead of the logical 'FileBasicInformation'
 534  * to prevent override of enum member 'FileBasicInformation'
 535  */
 536 static GnomeVFSResult FileBasicInformationStruct_to_GnomeVFSFileInfo(GnomeVFSFileInfo *file_info,
 537                 FILE_BASIC_INFORMATION *FileBasicInformationStruct)
 538 {
 539 BOOLEAN errBOOLEAN;
 540 ULONG tmp_ULONG;
 541
 542         /* FIXME: What is 'FILE_ATTRIBUTE_NORMAL'? */
 543         switch (FileBasicInformationStruct->FileAttributes & (0
 544                         | FILE_ATTRIBUTE_DIRECTORY
 545                         | FILE_ATTRIBUTE_DEVICE)) {
 546                 case 0:                        file_info->type=GNOME_VFS_FILE_TYPE_REGULAR;   break;
 547                 case FILE_ATTRIBUTE_DIRECTORY: file_info->type=GNOME_VFS_FILE_TYPE_DIRECTORY; break;
 548                 case FILE_ATTRIBUTE_DEVICE:    file_info->type=GNOME_VFS_FILE_TYPE_SOCKET;
 549                         /* or GNOME_VFS_FILE_TYPE_CHARACTER_DEVICE or GNOME_VFS_FILE_TYPE_BLOCK_DEVICE ? */
 550                         break;
 551                 default:                       file_info->type=GNOME_VFS_FILE_TYPE_UNKNOWN;   break;
 552                 }
 553         file_info->valid_fields|=GNOME_VFS_FILE_INFO_FIELDS_TYPE;
 554
 555         /* we use 0600 for r/w files, 0400 for FILE_ATTRIBUTE_READONLY */
 556         file_info->permissions=GNOME_VFS_PERM_USER_READ;
 557         if (file_info->type==GNOME_VFS_FILE_TYPE_DIRECTORY)
 558                 file_info->permissions|=GNOME_VFS_PERM_USER_EXEC;
 559         if (!(FileBasicInformationStruct->FileAttributes & FILE_ATTRIBUTE_READONLY))
 560                 file_info->permissions|=GNOME_VFS_PERM_USER_WRITE;
 561         file_info->valid_fields|=GNOME_VFS_FILE_INFO_FIELDS_PERMISSIONS;
 562
 563         if (FileBasicInformationStruct->LastAccessTime.QuadPart) {      /* it may be 0 if not set */
 564                 errBOOLEAN=RtlTimeToSecondsSince1970(&FileBasicInformationStruct->LastAccessTime,&tmp_ULONG);
 565                 g_assert(errBOOLEAN==TRUE);
 566                 file_info->atime=tmp_ULONG;
 567                 file_info->valid_fields|=GNOME_VFS_FILE_INFO_FIELDS_ATIME;
 568                 }
 569
 570         /* it may be 0 if not set */
 571         if (FileBasicInformationStruct->LastWriteTime.QuadPart || FileBasicInformationStruct->ChangeTime.QuadPart) {
 572                 errBOOLEAN=RtlTimeToSecondsSince1970(
 573                                 /* take the more recent (==bigger) time: */
 574                                 (FileBasicInformationStruct->LastWriteTime.QuadPart > FileBasicInformationStruct->ChangeTime.QuadPart
 575                                                 ? &FileBasicInformationStruct->LastWriteTime : &FileBasicInformationStruct->ChangeTime),
 576                                 &tmp_ULONG);
 577                 g_assert(errBOOLEAN==TRUE);
 578                 file_info->mtime=tmp_ULONG;
 579                 file_info->valid_fields|=GNOME_VFS_FILE_INFO_FIELDS_MTIME;
 580                 }
 581
 582         if (FileBasicInformationStruct->CreationTime.QuadPart) {        /* it may be 0 if not set */
 583                 errBOOLEAN=RtlTimeToSecondsSince1970(&FileBasicInformationStruct->CreationTime,&tmp_ULONG);
 584                 g_assert(errBOOLEAN==TRUE);
 585                 file_info->ctime=tmp_ULONG;
 586                 file_info->valid_fields|=GNOME_VFS_FILE_INFO_FIELDS_CTIME;
 587                 }
 588
 589         return GNOME_VFS_OK;
 590 }
 591
 592
 593 /* Use 'FileStandardInformationStruct' identifier instead of the logical 'FileStandardInformation'
 594  * to prevent override of enum member 'FileStandardInformation'
 595  */
 596 static GnomeVFSResult FileStandardInformationStruct_to_GnomeVFSFileInfo(GnomeVFSFileInfo *file_info,
 597                 FILE_STANDARD_INFORMATION *FileStandardInformationStruct)
 598 {
 599         file_info->size=FileStandardInformationStruct->EndOfFile.QuadPart;
 600         file_info->valid_fields|=GNOME_VFS_FILE_INFO_FIELDS_SIZE;
 601
 602         file_info->block_count=FileStandardInformationStruct->AllocationSize.QuadPart/512;
 603         file_info->valid_fields|=GNOME_VFS_FILE_INFO_FIELDS_BLOCK_COUNT;
 604
 605         return GNOME_VFS_OK;
 606 }
 607
 608
 609 GnomeVFSResult captive_file_slave_file_info_get(CaptiveFileObject *captive_file_object,
 610                 GnomeVFSFileInfo *file_info)
 611 {
 612 CaptiveFileSlaveObject *captive_file_slave_object;
 613 NTSTATUS err;
 614 IO_STATUS_BLOCK file_IoStatusBlock;
 615 FILE_NAME_INFORMATION *FileNameInformationStruct;
 616 FILE_BASIC_INFORMATION *FileBasicInformationStruct;
 617 FILE_STANDARD_INFORMATION *FileStandardInformationStruct;
 618 GnomeVFSResult errvfsresult;
 619 char QueryFile_buf[sizeof(FILE_NAME_INFORMATION)
 620                 +0x1000 /* max 'FileName' length, 255 should be enough */ * sizeof(WCHAR /* *FILE_ALL_INFORMATION.NameInformation.FileName */ )];
 621
 622         g_return_val_if_fail(CAPTIVE_FILE_SLAVE_IS_OBJECT(captive_file_object),GNOME_VFS_ERROR_BAD_PARAMETERS);
 623         g_return_val_if_fail(file_info!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 624
 625         captive_file_slave_object=CAPTIVE_FILE_SLAVE_OBJECT(captive_file_object);
 626
 627         g_return_val_if_fail(captive_file_slave_object->file_Handle!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 628
 629         /* ntfs.sys of NT-5.1sp1 has *(FILE_BASIC_INFORMATION *)FILE_ALL_INFORMATION.BasicInformation
 630          * size 0x28 although reactos includes and all the information says 0x24.
 631          * fastfat.sys of NT-5.1sp1 also has the 'official' sizeof 0x24.
 632          * It would be a bit of heuristic to correctly detect its expected sizeof.
 633          */
 634
 635         file_info->valid_fields=0;
 636
 637         file_info->flags=GNOME_VFS_FILE_FLAGS_LOCAL;
 638         file_info->valid_fields|=GNOME_VFS_FILE_INFO_FIELDS_FLAGS;
 639
 640         /* query NameInformation */
 641         FileNameInformationStruct=(void *)QueryFile_buf;
 642         err=NtQueryInformationFile(
 643                         captive_file_slave_object->file_Handle, /* FileHandle */
 644                         &file_IoStatusBlock,    /* IoStatusBlock */
 645                         (gpointer)QueryFile_buf,        /* FileInformation */
 646                         sizeof(QueryFile_buf)   /* Length */
 647                                         -sizeof(*FileNameInformationStruct->FileName),  /* reserve space for a possible 0-terminator */
 648                         FileNameInformation);   /* FileInformationClass; =>FILE_NAME_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=FileNameInformationStruct_to_GnomeVFSFileInfo(file_info,FileNameInformationStruct);
 654         g_return_val_if_fail(errvfsresult==GNOME_VFS_OK,errvfsresult);
 655
 656         /* query BasicInformation */
 657         FileBasicInformationStruct=(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                         FileBasicInformation);  /* FileInformationClass; =>FILE_BASIC_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=FileBasicInformationStruct_to_GnomeVFSFileInfo(file_info,FileBasicInformationStruct);
 669         g_return_val_if_fail(errvfsresult==GNOME_VFS_OK,errvfsresult);
 670
 671         /* query StandardInformation */
 672         FileStandardInformationStruct=(void *)QueryFile_buf;
 673         err=NtQueryInformationFile(
 674                         captive_file_slave_object->file_Handle, /* FileHandle */
 675                         &file_IoStatusBlock,    /* IoStatusBlock */
 676                         (gpointer)QueryFile_buf,        /* FileInformation */
 677                         sizeof(QueryFile_buf),  /* Length */
 678                         FileStandardInformation);       /* FileInformationClass; =>FILE_STANDARD_INFORMATION */
 679         if (GNOME_VFS_OK!=(errvfsresult=captive_NTSTATUS_to_GnomeVFSResult(err)))
 680                 return errvfsresult;
 681         g_return_val_if_fail(NT_SUCCESS(err)==NT_SUCCESS(file_IoStatusBlock.Status),GNOME_VFS_ERROR_GENERIC);
 682         g_return_val_if_fail(NT_SUCCESS(err),GNOME_VFS_ERROR_GENERIC);
 683         errvfsresult=FileStandardInformationStruct_to_GnomeVFSFileInfo(file_info,FileStandardInformationStruct);
 684         g_return_val_if_fail(errvfsresult==GNOME_VFS_OK,errvfsresult);
 685
 686         captive_leave();
 687         return GNOME_VFS_OK;
 688 }
 689
 690
 691 GnomeVFSResult captive_file_slave_file_info_set(CaptiveFileObject *captive_file_object,
 692     const GnomeVFSFileInfo *info,GnomeVFSSetFileInfoMask mask)
 693 {
 694 CaptiveFileSlaveObject *captive_file_slave_object;
 695
 696         g_return_val_if_fail(CAPTIVE_FILE_SLAVE_IS_OBJECT(captive_file_object),GNOME_VFS_ERROR_BAD_PARAMETERS);
 697         g_return_val_if_fail(info!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 698
 699         captive_file_slave_object=CAPTIVE_FILE_SLAVE_OBJECT(captive_file_object);
 700
 701         g_return_val_if_fail(captive_file_slave_object->file_Handle!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 702
 703         if (mask & GNOME_VFS_SET_FILE_INFO_NAME) {
 704 gchar *name_dirname,*name_basename;
 705 UNICODE_STRING *name_UnicodeString;
 706 FILE_RENAME_INFORMATION *FileRenameInformation_structp;
 707 gsize FileRenameInformation_struct_len;
 708 IO_STATUS_BLOCK file_IoStatusBlock;
 709 NTSTATUS err=STATUS_SUCCESS;    /* Prevent: ... might be used uninitialized in this function */
 710 GnomeVFSResult errvfsresult;
 711
 712                 /* non-existing dirname assertion */
 713                 name_dirname=g_path_get_dirname(info->name);
 714                 if (*name_dirname) {
 715                         g_assert_not_reached();
 716                         errvfsresult=GNOME_VFS_ERROR_BAD_PARAMETERS;
 717                         goto err;
 718                         }
 719
 720                 /* fully-matching basename assertion */
 721                 name_basename=g_path_get_basename(info->name);
 722                 if (strcmp(name_basename,info->name)) {
 723                         g_assert_not_reached();
 724                         errvfsresult=GNOME_VFS_ERROR_BAD_PARAMETERS;
 725                         goto err_free_name_dirname;
 726                         }
 727
 728                 name_UnicodeString=captive_utf8_to_UnicodeString_alloca(info->name);
 729                 FileRenameInformation_struct_len=sizeof(*FileRenameInformation_structp)
 730                                 +name_UnicodeString->MaximumLength;     /* ==Length+(0-terminator); is the terminator needed? */
 731
 732                 FileRenameInformation_structp=g_alloca(FileRenameInformation_struct_len);
 733                 FileRenameInformation_structp->Replace=FALSE;
 734                 FileRenameInformation_structp->RootDir=NULL;    /* we do 'simple rename' here */
 735                 FileRenameInformation_structp->FileNameLength=name_UnicodeString->Length;
 736                 memcpy(FileRenameInformation_structp->FileName,name_UnicodeString->Buffer,
 737                                 name_UnicodeString->MaximumLength);     /* ==Length+(0-terminator); is the terminator needed? */
 738
 739                 err=NtSetInformationFile(
 740                                 captive_file_slave_object->file_Handle, /* FileHandle */
 741                                 &file_IoStatusBlock,    /* IoStatusBlock */
 742                                 FileRenameInformation_structp,  /* FileInformation */
 743                                 FileRenameInformation_struct_len,       /* Length */
 744                                 FileRenameInformation); /* FileInformationClass */
 745                 if (GNOME_VFS_OK!=(errvfsresult=captive_NTSTATUS_to_GnomeVFSResult(err)))
 746                         goto err_free_name_basename;
 747
 748 err_free_name_basename:
 749                 g_free(name_basename);
 750 err_free_name_dirname:
 751                 g_free(name_dirname);
 752 err:
 753
 754                 if (errvfsresult!=GNOME_VFS_OK)
 755                         return errvfsresult;
 756                 g_return_val_if_fail(NT_SUCCESS(err),GNOME_VFS_ERROR_GENERIC);
 757                 }
 758
 759         if (mask & (GNOME_VFS_SET_FILE_INFO_PERMISSIONS | GNOME_VFS_SET_FILE_INFO_TIME)) {
 760 char FileBasicInformation_buf[sizeof(FILE_BASIC_INFORMATION)+4];
 761 FILE_BASIC_INFORMATION *FileBasicInformationp=(FILE_BASIC_INFORMATION *)FileBasicInformation_buf;
 762 IO_STATUS_BLOCK file_IoStatusBlock;
 763 NTSTATUS err;
 764
 765                 /* FIXME: Everywhere is is the declaration with 4xLARGE_INTEGER+1xULONG==36 bytes
 766                  * but the precompiled ext2fsd.sys wants 40 bytes - why?
 767                  * The same case applies to ntfs.sys of NT-5.1sp1.
 768                  */
 769                 g_assert(sizeof(FILE_BASIC_INFORMATION)==36);
 770                 g_assert(sizeof(FileBasicInformation_buf)==40);
 771                 err=NtQueryInformationFile(
 772                                 captive_file_slave_object->file_Handle, /* FileHandle */
 773                                 &file_IoStatusBlock,    /* IoStatusBlock */
 774                                 FileBasicInformation_buf,       /* FileInformation */
 775                                 sizeof(FileBasicInformation_buf),       /* Length */
 776                                 FileBasicInformation);  /* FileInformationClass */
 777                 g_return_val_if_fail(NT_SUCCESS(err),GNOME_VFS_ERROR_GENERIC);
 778
 779                 if (mask & GNOME_VFS_SET_FILE_INFO_PERMISSIONS) {
 780                         FileBasicInformationp->FileAttributes&=~FILE_ATTRIBUTE_READONLY;
 781                         g_assert(info->valid_fields & GNOME_VFS_FILE_INFO_FIELDS_PERMISSIONS);
 782                         if (!(info->permissions&0200))
 783                                 FileBasicInformationp->FileAttributes|=FILE_ATTRIBUTE_READONLY;
 784                         }
 785
 786                 if (mask & GNOME_VFS_SET_FILE_INFO_TIME) {
 787                         g_assert(info->valid_fields & (0
 788                                         | GNOME_VFS_FILE_INFO_FIELDS_ATIME
 789                                         | GNOME_VFS_FILE_INFO_FIELDS_MTIME));
 790                         /* !GNOME_VFS_FILE_INFO_FIELDS_CTIME is used by FUSE op_utime(). */
 791                         if (info->valid_fields&GNOME_VFS_FILE_INFO_FIELDS_ATIME) {
 792                                 RtlSecondsSince1970ToTime(
 793                                                 info->atime,    /* SecondsSince1970 */
 794                                                 &FileBasicInformationp->LastAccessTime);        /* Time */
 795                                 }
 796                         if (info->valid_fields&GNOME_VFS_FILE_INFO_FIELDS_MTIME) {
 797                                 RtlSecondsSince1970ToTime(
 798                                                 info->mtime,    /* SecondsSince1970 */
 799                                                 &FileBasicInformationp->LastWriteTime); /* Time */
 800                                 FileBasicInformationp->ChangeTime=FileBasicInformationp->LastWriteTime;
 801                                 }
 802                         if (info->valid_fields&GNOME_VFS_FILE_INFO_FIELDS_CTIME) {
 803                                 RtlSecondsSince1970ToTime(
 804                                                 info->ctime,    /* SecondsSince1970 */
 805                                                 &FileBasicInformationp->CreationTime);  /* Time */
 806                                 }
 807                         }
 808
 809                 err=NtSetInformationFile(
 810                                 captive_file_slave_object->file_Handle, /* FileHandle */
 811                                 &file_IoStatusBlock,    /* IoStatusBlock */
 812                                 FileBasicInformation_buf,       /* FileInformation */
 813                                 sizeof(FileBasicInformation_buf),       /* Length */
 814                                 FileBasicInformation);  /* FileInformationClass */
 815                 g_return_val_if_fail(NT_SUCCESS(err),GNOME_VFS_ERROR_GENERIC);
 816                 }
 817
 818         if (mask & GNOME_VFS_SET_FILE_INFO_OWNER) {
 819                 /* FIXME: g_assert(info->valid_fields & ???); */
 820                 /* owner ignored for W32 */
 821                 }
 822
 823         captive_leave();
 824         return GNOME_VFS_OK;
 825 }
 826
 827
 828 GnomeVFSResult captive_file_slave_truncate(CaptiveFileObject *captive_file_object,GnomeVFSFileSize file_size)
 829 {
 830 CaptiveFileSlaveObject *captive_file_slave_object;
 831 NTSTATUS err;
 832 FILE_END_OF_FILE_INFORMATION FileEndOfFileInformation_struct;
 833 IO_STATUS_BLOCK file_IoStatusBlock;
 834 GnomeVFSResult errvfsresult;
 835
 836         g_return_val_if_fail(CAPTIVE_FILE_SLAVE_IS_OBJECT(captive_file_object),GNOME_VFS_ERROR_BAD_PARAMETERS);
 837
 838         captive_file_slave_object=CAPTIVE_FILE_SLAVE_OBJECT(captive_file_object);
 839
 840         g_return_val_if_fail(captive_file_slave_object->file_Handle!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 841
 842         FileEndOfFileInformation_struct.EndOfFile.QuadPart=file_size;
 843
 844         err=NtSetInformationFile(
 845                         captive_file_slave_object->file_Handle, /* FileHandle */
 846                         &file_IoStatusBlock,    /* IoStatusBlock */
 847                         &FileEndOfFileInformation_struct,       /* FileInformation */
 848                         sizeof(FileEndOfFileInformation_struct),        /* Length */
 849                         FileEndOfFileInformation);      /* FileInformationClass */
 850         if (GNOME_VFS_OK!=(errvfsresult=captive_NTSTATUS_to_GnomeVFSResult(err)))
 851                 return errvfsresult;
 852         g_return_val_if_fail(NT_SUCCESS(err),GNOME_VFS_ERROR_GENERIC);
 853
 854         captive_leave();
 855         return GNOME_VFS_OK;
 856 }
 857
 858
 859 GnomeVFSResult captive_file_slave_move
 860                 (CaptiveFileObject *captive_file_object_old,const gchar *pathname_new,gboolean force_replace)
 861 {
 862 CaptiveFileSlaveObject *captive_file_slave_object_old;
 863 NTSTATUS err;
 864 FILE_RENAME_INFORMATION *FileRenameInformation_structp;
 865 IO_STATUS_BLOCK file_IoStatusBlock;
 866 GnomeVFSResult errvfsresult;
 867 OBJECT_ATTRIBUTES pathname_new_ObjectAttributes;
 868
 869         g_return_val_if_fail(CAPTIVE_FILE_SLAVE_IS_OBJECT(captive_file_object_old),GNOME_VFS_ERROR_BAD_PARAMETERS);
 870         g_return_val_if_fail(pathname_new!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 871
 872         captive_file_slave_object_old=CAPTIVE_FILE_SLAVE_OBJECT(captive_file_object_old);
 873
 874         g_return_val_if_fail(captive_file_slave_object_old->file_Handle!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 875
 876         errvfsresult=captive_ObjectAttributes_init(pathname_new,&pathname_new_ObjectAttributes);
 877         g_return_val_if_fail(errvfsresult==GNOME_VFS_OK,errvfsresult);
 878
 879         FileRenameInformation_structp=
 880                         g_alloca(sizeof(*FileRenameInformation_structp)+pathname_new_ObjectAttributes.ObjectName->MaximumLength);
 881         FileRenameInformation_structp->Replace=force_replace;
 882         FileRenameInformation_structp->RootDir=0;       /* AFAIK never set by orig W32 */
 883         FileRenameInformation_structp->FileNameLength=pathname_new_ObjectAttributes.ObjectName->Length;
 884         memcpy(FileRenameInformation_structp->FileName,pathname_new_ObjectAttributes.ObjectName->Buffer,
 885                         pathname_new_ObjectAttributes.ObjectName->MaximumLength);
 886
 887         err=NtSetInformationFile(
 888                         captive_file_slave_object_old->file_Handle,     /* FileHandle */
 889                         &file_IoStatusBlock,    /* IoStatusBlock */
 890                         FileRenameInformation_structp,  /* FileInformation */
 891                         sizeof(*FileRenameInformation_structp)+pathname_new_ObjectAttributes.ObjectName->MaximumLength, /* Length */
 892                         FileRenameInformation); /* FileInformationClass */
 893         if (GNOME_VFS_OK!=(errvfsresult=captive_NTSTATUS_to_GnomeVFSResult(err)))
 894                 goto err_free_ObjectAttributes;
 895         g_return_val_if_fail(NT_SUCCESS(err),GNOME_VFS_ERROR_GENERIC);
 896
 897         errvfsresult=GNOME_VFS_OK;
 898
 899 err_free_ObjectAttributes:
 900         g_free(pathname_new_ObjectAttributes.ObjectName);       /* left from captive_file_slave_uri_parent_init() */
 901
 902         captive_leave();
 903         return errvfsresult;
 904 }