src/libcaptive/client/file.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 "captive/client-file.h"        /* self */
  23 #include "lib.h"
  24 #include <glib/gmessages.h>
  25 #include "captive/unicode.h"
  26 #include "reactos/ntos/types.h" /* for HANDLE */
  27 #include "reactos/ddk/iotypes.h"        /* for IO_STATUS_BLOCK */
  28 #include "reactos/ddk/iofuncs.h"        /* for IoCreateFile() */
  29 #include "captive/sandbox.h"
  30 #include "result.h"
  31
  32
  33 static gpointer captive_file_object_parent_class=NULL;
  34
  35
  36 static GnomeVFSResult captive_file_close(CaptiveFileObject *captive_file_object);
  37
  38 static void captive_file_object_finalize(CaptiveFileObject *captive_file_object)
  39 {
  40 GnomeVFSResult errvfsresult;
  41
  42         g_return_if_fail(captive_file_object!=NULL);
  43
  44         errvfsresult=captive_file_close(captive_file_object);
  45         g_assert(errvfsresult==GNOME_VFS_OK);
  46
  47         G_OBJECT_CLASS(captive_file_object_parent_class)->finalize((GObject *)captive_file_object);
  48 }
  49
  50
  51 static void captive_file_object_class_init(CaptiveFileObjectClass *class)
  52 {
  53 GObjectClass *gobject_class=G_OBJECT_CLASS(class);
  54
  55         captive_file_object_parent_class=g_type_class_ref(G_TYPE_OBJECT);
  56         gobject_class->finalize=(void (*)(GObject *object))captive_file_object_finalize;
  57 }
  58
  59
  60 static void captive_file_object_init(CaptiveFileObject *captive_file_object)
  61 {
  62         captive_file_object->file_Handle=NULL;
  63 }
  64
  65
  66 GType captive_file_object_get_type(void)
  67 {
  68 static GType captive_file_object_type=0;
  69
  70         if (!captive_file_object_type) {
  71 static const GTypeInfo captive_file_object_info={
  72                                 sizeof(CaptiveFileObjectClass),
  73                                 NULL,   /* base_init */
  74                                 NULL,   /* base_finalize */
  75                                 (GClassInitFunc)captive_file_object_class_init,
  76                                 NULL,   /* class_finalize */
  77                                 NULL,   /* class_data */
  78                                 sizeof(CaptiveFileObject),
  79                                 5,      /* n_preallocs */
  80                                 (GInstanceInitFunc)captive_file_object_init,
  81                                 };
  82
  83                 captive_file_object_type=g_type_register_static(G_TYPE_OBJECT,
  84                                 "CaptiveFileObject",&captive_file_object_info,0);
  85                 }
  86
  87         return captive_file_object_type;
  88 }
  89
  90
  91 static GnomeVFSResult captive_file_new_internal(CaptiveFileObject **captive_file_object_return,
  92                 const gchar *pathname,GnomeVFSOpenMode mode,gboolean create,gboolean create_exclusive,guint create_perm)
  93 {
  94 IO_STATUS_BLOCK file_IoStatusBlock;
  95 GnomeVFSResult errvfsresult;
  96 OBJECT_ATTRIBUTES file_ObjectAttributes;
  97 HANDLE file_Handle;
  98 CaptiveFileObject *captive_file_object;
  99 NTSTATUS err;
 100
 101         if (CAPTIVE_IS_SANDBOX_PARENT())
 102                 return captive_sandbox_parent_file_new_open(captive_file_object_return,pathname,mode);
 103
 104         g_return_val_if_fail(captive_file_object_return!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 105         g_return_val_if_fail(pathname!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 106
 107         *captive_file_object_return=NULL;
 108
 109         errvfsresult=captive_ObjectAttributes_init(pathname,&file_ObjectAttributes);
 110         g_return_val_if_fail(errvfsresult==GNOME_VFS_OK,errvfsresult);
 111
 112         /* open */
 113         err=IoCreateFile(
 114                         &file_Handle,   /* FileHandle */
 115                         0
 116                                         |(!(mode&GNOME_VFS_OPEN_READ ) ? 0 : FILE_READ_DATA)
 117                                         |(!(mode&GNOME_VFS_OPEN_WRITE) ? 0 : FILE_WRITE_DATA | FILE_APPEND_DATA)
 118                                         |(  mode!=0                    ? 0 : FILE_READ_ATTRIBUTES)
 119                                         ,       /* DesiredAccess */
 120                         &file_ObjectAttributes, /* ObjectAttributes */
 121                         &file_IoStatusBlock,    /* IoStatusBlock */
 122                         NULL,   /* AllocationSize; ignored for open */
 123                         (!create || create_perm&0200 ? FILE_ATTRIBUTE_NORMAL: FILE_ATTRIBUTE_READONLY), /* FileAttributes; ignored for open */
 124                         (!create || !create_exclusive ? FILE_SHARE_DELETE : 0), /* ShareAccess; 0 means exclusive */
 125                         (!create ? FILE_OPEN : FILE_CREATE),    /* CreateDisposition */
 126                         /* FILE_SYNCHRONOUS_IO_{,NON}ALERT: We need to allow W32 filesystem
 127                                  * any waits to not to let it return STATUS_CANT_WAIT us.
 128                                  * Alertability should have only effect on asynchronous events
 129                                  * from KeWaitForSingleObject() by setting/clearing its parameter 'Alertable'.
 130                                  */
 131                         FILE_SYNCHRONOUS_IO_ALERT,      /* CreateOptions */
 132                         NULL,   /* EaBuffer */
 133                         0,      /* EaLength */
 134                         CreateFileTypeNone,     /* CreateFileType */
 135                         NULL,   /* ExtraCreateParameters */
 136                         0);     /* Options */
 137         g_free(file_ObjectAttributes.ObjectName);       /* left from captive_file_uri_parent_init() */
 138         g_return_val_if_fail(NT_SUCCESS(err)==NT_SUCCESS(file_IoStatusBlock.Status),GNOME_VFS_ERROR_GENERIC);
 139         if (GNOME_VFS_OK!=(errvfsresult=captive_NTSTATUS_to_GnomeVFSResult(err)))
 140                 return errvfsresult;
 141         g_return_val_if_fail(NT_SUCCESS(err),GNOME_VFS_ERROR_GENERIC);
 142         g_return_val_if_fail(file_IoStatusBlock.Information
 143                                         ==(!create ? FILE_OPENED : FILE_CREATED),
 144                         GNOME_VFS_ERROR_GENERIC);
 145
 146         captive_file_object=g_object_new(
 147                         CAPTIVE_FILE_TYPE_OBJECT,       /* object_type */
 148                         NULL);  /* first_property_name; FIXME: support properties */
 149
 150         captive_file_object->file_Handle=file_Handle;
 151         captive_file_object->offset=0;
 152
 153         *captive_file_object_return=captive_file_object;
 154         return GNOME_VFS_OK;
 155 }
 156
 157
 158 GnomeVFSResult captive_file_new_open
 159                 (CaptiveFileObject **captive_file_object_return,const gchar *pathname,GnomeVFSOpenMode mode)
 160 {
 161         g_return_val_if_fail(captive_file_object_return!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 162         g_return_val_if_fail(pathname!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 163
 164         return captive_file_new_internal(captive_file_object_return,pathname,mode,
 165                         FALSE,  /* create */
 166                         FALSE,  /* create_exclusive; ignored */
 167                         0);     /* create_perm; ignored */
 168 }
 169
 170
 171 GnomeVFSResult captive_file_new_create
 172                 (CaptiveFileObject **captive_file_object_return,const gchar *pathname,GnomeVFSOpenMode mode,gboolean exclusive,guint perm)
 173 {
 174         g_return_val_if_fail(captive_file_object_return!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 175         g_return_val_if_fail(pathname!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 176
 177         return captive_file_new_internal(captive_file_object_return,pathname,mode,
 178                         TRUE,   /* create */
 179                         exclusive,      /* create_exclusive */
 180                         perm);  /* create_perm */
 181 }
 182
 183
 184 static GnomeVFSResult captive_file_close(CaptiveFileObject *captive_file_object)
 185 {
 186 NTSTATUS err;
 187 HANDLE file_Handle;
 188
 189         if (CAPTIVE_IS_SANDBOX_PARENT())
 190                 return captive_sandbox_parent_file_close(captive_file_object);
 191
 192         g_return_val_if_fail(captive_file_object!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 193         g_return_val_if_fail(captive_file_object->file_Handle!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);    /* already closed */
 194
 195         file_Handle=captive_file_object->file_Handle;
 196         captive_file_object->file_Handle=NULL;
 197         err=NtClose(file_Handle);
 198         g_return_val_if_fail(NT_SUCCESS(err),GNOME_VFS_ERROR_GENERIC);
 199
 200         return GNOME_VFS_OK;
 201 }
 202
 203
 204 GnomeVFSResult captive_file_read(CaptiveFileObject *captive_file_object,
 205                 gpointer buffer,GnomeVFSFileSize num_bytes,GnomeVFSFileSize *bytes_read_return)
 206 {
 207 NTSTATUS err;
 208 IO_STATUS_BLOCK file_IoStatusBlock;
 209 LARGE_INTEGER file_offset;
 210 GnomeVFSResult errvfsresult;
 211
 212         if (CAPTIVE_IS_SANDBOX_PARENT())
 213                 return captive_sandbox_parent_file_read(captive_file_object,buffer,num_bytes,bytes_read_return);
 214
 215         g_return_val_if_fail(captive_file_object!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 216         g_return_val_if_fail(captive_file_object->file_Handle!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 217         g_return_val_if_fail(buffer!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 218         g_return_val_if_fail(bytes_read_return!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 219         g_return_val_if_fail(num_bytes==(ULONG)num_bytes,GNOME_VFS_ERROR_BAD_PARAMETERS);
 220
 221         file_offset.QuadPart=captive_file_object->offset;
 222         err=NtReadFile(
 223                         captive_file_object->file_Handle,       /* FileHandle */
 224                         NULL,   /* EventHandle; completion signalling; optional */
 225                         NULL,   /* ApcRoutine; optional */
 226                         NULL,   /* ApcContext; optional */
 227                         &file_IoStatusBlock,    /* IoStatusBlock */
 228                         buffer, /* Buffer */
 229                         num_bytes,      /* Length */
 230                         &file_offset,   /* ByteOffset */
 231                         NULL);  /* Key; NULL means no file locking key */
 232         if (err==STATUS_END_OF_FILE) {
 233                 g_return_val_if_fail(file_IoStatusBlock.Status==STATUS_END_OF_FILE,GNOME_VFS_ERROR_GENERIC);
 234                 g_return_val_if_fail(file_IoStatusBlock.Information==0,GNOME_VFS_ERROR_GENERIC);
 235                 *bytes_read_return=0;
 236                 return GNOME_VFS_ERROR_EOF;
 237                 }
 238         if (GNOME_VFS_OK!=(errvfsresult=captive_NTSTATUS_to_GnomeVFSResult(err)))
 239                 return errvfsresult;
 240         g_return_val_if_fail(NT_SUCCESS(err)==NT_SUCCESS(file_IoStatusBlock.Status),GNOME_VFS_ERROR_GENERIC);
 241         g_return_val_if_fail(NT_SUCCESS(err),GNOME_VFS_ERROR_GENERIC);
 242         g_return_val_if_fail(file_IoStatusBlock.Information<=num_bytes,GNOME_VFS_ERROR_GENERIC);
 243
 244         captive_file_object->offset+=file_IoStatusBlock.Information;
 245         *bytes_read_return=file_IoStatusBlock.Information;
 246         return GNOME_VFS_OK;
 247 }
 248
 249
 250 GnomeVFSResult captive_file_write(CaptiveFileObject *captive_file_object,
 251                 gconstpointer buffer,GnomeVFSFileSize num_bytes,GnomeVFSFileSize *bytes_written_return)
 252 {
 253 NTSTATUS err;
 254 IO_STATUS_BLOCK file_IoStatusBlock;
 255 LARGE_INTEGER file_offset;
 256
 257         if (CAPTIVE_IS_SANDBOX_PARENT())
 258                 return captive_sandbox_parent_file_write(captive_file_object,buffer,num_bytes,bytes_written_return);
 259
 260         g_return_val_if_fail(captive_file_object!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 261         g_return_val_if_fail(captive_file_object->file_Handle!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 262         g_return_val_if_fail(buffer!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 263         g_return_val_if_fail(bytes_written_return!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 264         g_return_val_if_fail(num_bytes==(ULONG)num_bytes,GNOME_VFS_ERROR_BAD_PARAMETERS);
 265
 266         file_offset.QuadPart=captive_file_object->offset;
 267         err=NtWriteFile(
 268                         captive_file_object->file_Handle,       /* FileHandle */
 269                         NULL,   /* Event; completion signalling; optional */
 270                         NULL,   /* ApcRoutine; optional */
 271                         NULL,   /* ApcContext; optional */
 272                         &file_IoStatusBlock,    /* IoStatusBlock */
 273                         (gpointer /* de-const */ )buffer,       /* Buffer */
 274                         num_bytes,      /* Length */
 275                         &file_offset,   /* ByteOffset */
 276                         NULL);  /* Key; NULL means no file locking key */
 277         g_return_val_if_fail(NT_SUCCESS(err)==NT_SUCCESS(file_IoStatusBlock.Status),GNOME_VFS_ERROR_GENERIC);
 278         g_return_val_if_fail(NT_SUCCESS(err),GNOME_VFS_ERROR_GENERIC);
 279         g_return_val_if_fail(file_IoStatusBlock.Information==num_bytes,GNOME_VFS_ERROR_GENERIC);
 280
 281         captive_file_object->offset+=file_IoStatusBlock.Information;
 282         *bytes_written_return=file_IoStatusBlock.Information;
 283         return GNOME_VFS_OK;
 284 }
 285
 286
 287 GnomeVFSResult captive_file_seek
 288                 (CaptiveFileObject *captive_file_object,GnomeVFSSeekPosition whence,GnomeVFSFileOffset offset)
 289 {
 290         if (CAPTIVE_IS_SANDBOX_PARENT())
 291                 return captive_sandbox_parent_file_seek(captive_file_object,whence,offset);
 292
 293         g_return_val_if_fail(captive_file_object!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 294         g_return_val_if_fail(captive_file_object->file_Handle!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 295
 296         switch (whence) {
 297                 case GNOME_VFS_SEEK_START:
 298                         captive_file_object->offset=offset;
 299                         break;
 300                 case GNOME_VFS_SEEK_CURRENT:
 301                         if (0
 302                                         || (offset>0 && (captive_file_object->offset+offset)<captive_file_object->offset)
 303                                         || (offset<0 && (captive_file_object->offset+offset)>captive_file_object->offset))
 304                                 return GNOME_VFS_ERROR_BAD_PARAMETERS;
 305                         captive_file_object->offset+=offset;
 306                         break;
 307                 case GNOME_VFS_SEEK_END:
 308                         g_assert_not_reached(); /* NOT IMPLEMENTED YET */
 309                         break;
 310                 default:
 311                         g_return_val_if_reached(GNOME_VFS_ERROR_BAD_PARAMETERS);
 312                 }
 313
 314         return GNOME_VFS_OK;
 315 }
 316
 317
 318 GnomeVFSResult captive_file_tell(CaptiveFileObject *captive_file_object,GnomeVFSFileOffset *offset_return)
 319 {
 320         if (CAPTIVE_IS_SANDBOX_PARENT())
 321                 return captive_sandbox_parent_file_tell(captive_file_object,offset_return);
 322
 323         g_return_val_if_fail(captive_file_object!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 324         g_return_val_if_fail(captive_file_object->file_Handle!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 325         g_return_val_if_fail(offset_return!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 326
 327         *offset_return=captive_file_object->offset;
 328         return GNOME_VFS_OK;
 329 }
 330
 331
 332 GnomeVFSResult captive_file_remove(CaptiveFileObject *captive_file_object)
 333 {
 334 NTSTATUS err;
 335 FILE_DISPOSITION_INFORMATION FileDispositionInformation_struct;
 336 IO_STATUS_BLOCK file_IoStatusBlock;
 337 GnomeVFSResult errvfsresult;
 338
 339         g_return_val_if_fail(captive_file_object!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 340         g_return_val_if_fail(captive_file_object->file_Handle!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 341
 342         FileDispositionInformation_struct.DoDeleteFile=TRUE;
 343
 344         err=NtSetInformationFile(
 345                         captive_file_object->file_Handle,       /* FileHandle */
 346                         &file_IoStatusBlock,    /* IoStatusBlock */
 347                         &FileDispositionInformation_struct,     /* FileInformation */
 348                         sizeof(FileDispositionInformation_struct),      /* Length */
 349                         FileDispositionInformation);    /* FileInformationClass */
 350         if (GNOME_VFS_OK!=(errvfsresult=captive_NTSTATUS_to_GnomeVFSResult(err)))
 351                 return errvfsresult;
 352         g_return_val_if_fail(NT_SUCCESS(err),GNOME_VFS_ERROR_GENERIC);
 353
 354         return GNOME_VFS_OK;
 355 }
 356
 357
 358 /* Use 'FileAllInformationStruct' identifier instead of the logical 'FileAllInformation'
 359  * to prevent override of enum member 'FileAllInformation'
 360  */
 361 static GnomeVFSResult FileAllInformationStruct_to_GnomeVFSFileInfo(GnomeVFSFileInfo *file_info,
 362                 FILE_ALL_INFORMATION *FileAllInformationStruct,IO_STATUS_BLOCK *IoStatusBlock)
 363 {
 364 UNICODE_STRING FileName_UnicodeString;
 365 BOOLEAN errBOOLEAN;
 366 ULONG tmp_ULONG;
 367
 368         g_return_val_if_fail(file_info!=NULL,GNOME_VFS_ERROR_GENERIC);
 369         g_return_val_if_fail(FileAllInformationStruct!=NULL,GNOME_VFS_ERROR_GENERIC);
 370
 371         g_return_val_if_fail(NT_SUCCESS(IoStatusBlock->Status),GNOME_VFS_ERROR_GENERIC);
 372
 373         file_info->valid_fields=0;
 374
 375         FileName_UnicodeString.Length=FileAllInformationStruct->NameInformation.FileNameLength;
 376         FileName_UnicodeString.MaximumLength=FileAllInformationStruct->NameInformation.FileNameLength
 377                         +sizeof(*FileAllInformationStruct->NameInformation.FileName);   /* 0-terminator */
 378         g_assert((gpointer)(((char *)FileAllInformationStruct->NameInformation.FileName)+FileName_UnicodeString.Length)
 379                         <=(gpointer)(((char *)FileAllInformationStruct)+IoStatusBlock->Information));
 380                                         /* ensure we fit below '->IoStatusBlock->Information' at least without the 0-terminator */
 381         FileAllInformationStruct->NameInformation.FileName[FileAllInformationStruct->NameInformation.FileNameLength
 382                         /sizeof(*FileAllInformationStruct->NameInformation.FileName)]=0;        /* 0-terminate it */
 383         FileName_UnicodeString.Buffer=FileAllInformationStruct->NameInformation.FileName;
 384         file_info->name=captive_UnicodeString_to_utf8_malloc(&FileName_UnicodeString);
 385         /* '->name' assumed for 'file_info->valid_fields' */
 386
 387         /* FIXME: What is 'FILE_ATTRIBUTE_NORMAL'? */
 388         switch (FileAllInformationStruct->BasicInformation.FileAttributes & (0
 389                         | FILE_ATTRIBUTE_DIRECTORY
 390                         | FILE_ATTRIBUTE_DEVICE)) {
 391                 case 0:                        file_info->type=GNOME_VFS_FILE_TYPE_REGULAR;   break;
 392                 case FILE_ATTRIBUTE_DIRECTORY: file_info->type=GNOME_VFS_FILE_TYPE_DIRECTORY; break;
 393                 case FILE_ATTRIBUTE_DEVICE:    file_info->type=GNOME_VFS_FILE_TYPE_SOCKET;
 394                         /* or GNOME_VFS_FILE_TYPE_CHARACTER_DEVICE or GNOME_VFS_FILE_TYPE_BLOCK_DEVICE ? */
 395                         break;
 396                 default:                       file_info->type=GNOME_VFS_FILE_TYPE_UNKNOWN;   break;
 397                 }
 398         file_info->valid_fields|=GNOME_VFS_FILE_INFO_FIELDS_TYPE;
 399
 400         /* we use 0600 for r/w files, 0400 for FILE_ATTRIBUTE_READONLY */
 401         file_info->permissions=GNOME_VFS_PERM_USER_READ;
 402         if (file_info->type==GNOME_VFS_FILE_TYPE_DIRECTORY)
 403                 file_info->permissions|=GNOME_VFS_PERM_USER_EXEC;
 404         if (!(FileAllInformationStruct->BasicInformation.FileAttributes & FILE_ATTRIBUTE_READONLY))
 405                 file_info->permissions|=GNOME_VFS_PERM_USER_WRITE;
 406         file_info->valid_fields|=GNOME_VFS_FILE_INFO_FIELDS_PERMISSIONS;
 407
 408         file_info->size=FileAllInformationStruct->StandardInformation.EndOfFile.QuadPart;
 409         file_info->valid_fields|=GNOME_VFS_FILE_INFO_FIELDS_SIZE;
 410
 411         file_info->block_count=FileAllInformationStruct->StandardInformation.AllocationSize.QuadPart/512;
 412         file_info->valid_fields|=GNOME_VFS_FILE_INFO_FIELDS_BLOCK_COUNT;
 413
 414         file_info->flags=GNOME_VFS_FILE_FLAGS_LOCAL;
 415         file_info->valid_fields|=GNOME_VFS_FILE_INFO_FIELDS_FLAGS;
 416
 417         if (FileAllInformationStruct->BasicInformation.LastAccessTime.QuadPart) {       /* it may be 0 if not set */
 418                 errBOOLEAN=RtlTimeToSecondsSince1970(&FileAllInformationStruct->BasicInformation.LastAccessTime,&tmp_ULONG);
 419                 g_assert(errBOOLEAN==TRUE);
 420                 file_info->atime=tmp_ULONG;
 421                 file_info->valid_fields|=GNOME_VFS_FILE_INFO_FIELDS_ATIME;
 422                 }
 423
 424         /* it may be 0 if not set */
 425         if (FileAllInformationStruct->BasicInformation.LastWriteTime.QuadPart || FileAllInformationStruct->BasicInformation.ChangeTime.QuadPart) {
 426                 errBOOLEAN=RtlTimeToSecondsSince1970(
 427                                 /* take the more recent (==bigger) time: */
 428                                 (FileAllInformationStruct->BasicInformation.LastWriteTime.QuadPart > FileAllInformationStruct->BasicInformation.ChangeTime.QuadPart
 429                                                 ? &FileAllInformationStruct->BasicInformation.LastWriteTime : &FileAllInformationStruct->BasicInformation.ChangeTime),
 430                                 &tmp_ULONG);
 431                 g_assert(errBOOLEAN==TRUE);
 432                 file_info->mtime=tmp_ULONG;
 433                 file_info->valid_fields|=GNOME_VFS_FILE_INFO_FIELDS_MTIME;
 434                 }
 435
 436         if (FileAllInformationStruct->BasicInformation.CreationTime.QuadPart) { /* it may be 0 if not set */
 437                 errBOOLEAN=RtlTimeToSecondsSince1970(&FileAllInformationStruct->BasicInformation.CreationTime,&tmp_ULONG);
 438                 g_assert(errBOOLEAN==TRUE);
 439                 file_info->ctime=tmp_ULONG;
 440                 file_info->valid_fields|=GNOME_VFS_FILE_INFO_FIELDS_CTIME;
 441                 }
 442
 443         return GNOME_VFS_OK;
 444 }
 445
 446
 447 GnomeVFSResult captive_file_file_info_get(CaptiveFileObject *captive_file_object,GnomeVFSFileInfo *file_info)
 448 {
 449 NTSTATUS err;
 450 IO_STATUS_BLOCK file_IoStatusBlock;
 451 FILE_ALL_INFORMATION *FileAllInformationStruct;
 452 GnomeVFSResult errvfsresult;
 453 char QueryFile_buf[sizeof(FILE_ALL_INFORMATION)
 454                 +0x1000 /* max 'FileName' length, 255 should be enough */ * sizeof(WCHAR /* *FILE_ALL_INFORMATION.NameInformation.FileName */ )];
 455
 456         g_return_val_if_fail(captive_file_object!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 457         g_return_val_if_fail(captive_file_object->file_Handle!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 458         g_return_val_if_fail(file_info!=NULL,GNOME_VFS_ERROR_BAD_PARAMETERS);
 459
 460         /* query */
 461         FileAllInformationStruct=(void *)QueryFile_buf;
 462         err=NtQueryInformationFile(
 463                         captive_file_object->file_Handle,       /* FileHandle */
 464                         &file_IoStatusBlock,    /* IoStatusBlock */
 465                         (gpointer)QueryFile_buf,        /* FileInformation */
 466                         sizeof(QueryFile_buf)   /* Length */
 467                                         -sizeof(*FileAllInformationStruct->NameInformation.FileName),   /* reserve space for 0-terminator */
 468                         FileAllInformation);    /* FileInformationClass; =>FILE_ALL_INFORMATION */
 469         if (GNOME_VFS_OK!=(errvfsresult=captive_NTSTATUS_to_GnomeVFSResult(err)))
 470                 return errvfsresult;
 471         g_return_val_if_fail(NT_SUCCESS(err),GNOME_VFS_ERROR_GENERIC);
 472
 473         /* process gathered info */
 474         errvfsresult=FileAllInformationStruct_to_GnomeVFSFileInfo(file_info,FileAllInformationStruct,
 475                         &file_IoStatusBlock);
 476         g_return_val_if_fail(errvfsresult==GNOME_VFS_OK,errvfsresult);
 477
 478         return GNOME_VFS_OK;
 479 }