dlls/ntdll/file.c

   1 /*
   2  * Copyright 1999, 2000 Juergen Schmied
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2.1 of the License, or (at your option) any later version.
   8  *
   9  * This library 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 GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the Free Software
  16  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  17  */
  18
  19 #include "config.h"
  20 #include "wine/port.h"
  21
  22 #include <stdlib.h>
  23 #include <string.h>
  24 #include <stdio.h>
  25 #include <errno.h>
  26 #ifdef HAVE_UNISTD_H
  27 # include <unistd.h>
  28 #endif
  29 #ifdef HAVE_SYS_ERRNO_H
  30 #include <sys/errno.h>
  31 #endif
  32
  33 #define NONAMELESSUNION
  34 #define NONAMELESSSTRUCT
  35 #include "wine/unicode.h"
  36 #include "wine/debug.h"
  37 #include "wine/server.h"
  38 #include "ntdll_misc.h"
  39 #include "file.h" /* FIXME */
  40
  41 #include "winternl.h"
  42 #include "winioctl.h"
  43
  44 WINE_DEFAULT_DEBUG_CHANNEL(ntdll);
  45
  46
  47 /**************************************************************************
  48  *                 NtOpenFile                           [NTDLL.@]
  49  *                 ZwOpenFile                           [NTDLL.@]
  50  * FUNCTION: Opens a file
  51  * ARGUMENTS:
  52  *  FileHandle          Variable that receives the file handle on return
  53  *  DesiredAccess       Access desired by the caller to the file
  54  *  ObjectAttributes    Structue describing the file to be opened
  55  *  IoStatusBlock       Receives details about the result of the operation
  56  *  ShareAccess         Type of shared access the caller requires
  57  *  OpenOptions         Options for the file open
  58  */
  59 NTSTATUS WINAPI NtOpenFile(
  60         OUT PHANDLE FileHandle,
  61         ACCESS_MASK DesiredAccess,
  62         POBJECT_ATTRIBUTES ObjectAttributes,
  63         OUT PIO_STATUS_BLOCK IoStatusBlock,
  64         ULONG ShareAccess,
  65         ULONG OpenOptions)
  66 {
  67         LPWSTR filename;
  68         static const WCHAR szDosDevices[] = {'\\','D','o','s','D','e','v','i','c','e','s','\\',0};
  69         DOS_FULL_NAME full_name;
  70         NTSTATUS r;
  71
  72         FIXME("(%p,0x%08lx,%p,%p,0x%08lx,0x%08lx) partial stub\n",
  73                 FileHandle, DesiredAccess, ObjectAttributes,
  74                 IoStatusBlock, ShareAccess, OpenOptions);
  75
  76         dump_ObjectAttributes (ObjectAttributes);
  77
  78         if(ObjectAttributes->RootDirectory)
  79         {
  80                 FIXME("Object root directory unknown %p\n",
  81                         ObjectAttributes->RootDirectory);
  82                 return STATUS_OBJECT_NAME_NOT_FOUND;
  83         }
  84
  85         filename = ObjectAttributes->ObjectName->Buffer;
  86
  87         /* FIXME: DOSFS stuff should call here, not vice-versa */
  88         if(strncmpW(filename, szDosDevices, strlenW(szDosDevices)))
  89                 return STATUS_OBJECT_NAME_NOT_FOUND;
  90
  91         /* FIXME: this calls SetLastError() -> bad */
  92         if(!DOSFS_GetFullName(&filename[strlenW(szDosDevices)], TRUE,
  93                                 &full_name))
  94                 return STATUS_OBJECT_NAME_NOT_FOUND;
  95
  96         /* FIXME: modify server protocol so
  97                   create file takes an OBJECT_ATTRIBUTES structure */
  98         SERVER_START_REQ( create_file )
  99         {
 100             req->access     = DesiredAccess;
 101             req->inherit    = 0;
 102             req->sharing    = ShareAccess;
 103             req->create     = OPEN_EXISTING;
 104             req->attrs      = 0;
 105             req->drive_type = GetDriveTypeW( full_name.short_name );
 106             wine_server_add_data( req, full_name.long_name, strlen(full_name.long_name) );
 107             SetLastError(0);
 108             r = wine_server_call( req );
 109             *FileHandle = reply->handle;
 110         }
 111         SERVER_END_REQ;
 112
 113         return r;
 114 }
 115
 116 /**************************************************************************
 117  *              NtCreateFile                            [NTDLL.@]
 118  *              ZwCreateFile                            [NTDLL.@]
 119  * FUNCTION: Either causes a new file or directory to be created, or it opens
 120  *  an existing file, device, directory or volume, giving the caller a handle
 121  *  for the file object. This handle can be used by subsequent calls to
 122  *  manipulate data within the file or the file object's state of attributes.
 123  * ARGUMENTS:
 124  *      FileHandle              Points to a variable which receives the file handle on return
 125  *      DesiredAccess           Desired access to the file
 126  *      ObjectAttributes        Structure describing the file
 127  *      IoStatusBlock           Receives information about the operation on return
 128  *      AllocationSize          Initial size of the file in bytes
 129  *      FileAttributes          Attributes to create the file with
 130  *      ShareAccess             Type of shared access the caller would like to the file
 131  *      CreateDisposition       Specifies what to do, depending on whether the file already exists
 132  *      CreateOptions           Options for creating a new file
 133  *      EaBuffer                Undocumented
 134  *      EaLength                Undocumented
 135  */
 136 NTSTATUS WINAPI NtCreateFile(
 137         OUT PHANDLE FileHandle,
 138         ACCESS_MASK DesiredAccess,
 139         POBJECT_ATTRIBUTES ObjectAttributes,
 140         OUT PIO_STATUS_BLOCK IoStatusBlock,
 141         PLARGE_INTEGER AllocateSize,
 142         ULONG FileAttributes,
 143         ULONG ShareAccess,
 144         ULONG CreateDisposition,
 145         ULONG CreateOptions,
 146         PVOID EaBuffer,
 147         ULONG EaLength)
 148 {
 149         FIXME("(%p,0x%08lx,%p,%p,%p,0x%08lx,0x%08lx,0x%08lx,0x%08lx,%p,0x%08lx) stub\n",
 150         FileHandle,DesiredAccess,ObjectAttributes,
 151         IoStatusBlock,AllocateSize,FileAttributes,
 152         ShareAccess,CreateDisposition,CreateOptions,EaBuffer,EaLength);
 153         dump_ObjectAttributes (ObjectAttributes);
 154         return 0;
 155 }
 156
 157 /* set the last error depending on errno */
 158 NTSTATUS NTFILE_errno_to_status(int val)
 159 {
 160     switch (val)
 161     {
 162     case EAGAIN:    return ( STATUS_SHARING_VIOLATION );
 163     case ESPIPE:
 164     case EBADF:     return ( STATUS_INVALID_HANDLE );
 165     case ENOSPC:    return ( STATUS_DISK_FULL );
 166     case EACCES:
 167     case ESRCH:
 168     case EPERM:     return ( STATUS_ACCESS_DENIED );
 169     case EROFS:     return ( STATUS_MEDIA_WRITE_PROTECTED );
 170     case EBUSY:     return ( STATUS_FILE_LOCK_CONFLICT );
 171     case ENOENT:    return ( STATUS_NO_SUCH_FILE );
 172     case EISDIR:    return ( STATUS_FILE_IS_A_DIRECTORY );
 173     case ENFILE:
 174     case EMFILE:    return ( STATUS_NO_MORE_FILES );
 175     case EEXIST:    return ( STATUS_OBJECT_NAME_COLLISION );
 176     case EINVAL:    return ( STATUS_INVALID_PARAMETER );
 177     case ENOTEMPTY: return ( STATUS_DIRECTORY_NOT_EMPTY );
 178     case EIO:       return ( STATUS_ACCESS_VIOLATION );
 179     }
 180     perror("file_set_error");
 181     return ( STATUS_INVALID_PARAMETER );
 182 }
 183
 184
 185 /******************************************************************************
 186  *  NtReadFile                                  [NTDLL.@]
 187  *  ZwReadFile                                  [NTDLL.@]
 188  *
 189  * Parameters
 190  *   HANDLE32           FileHandle
 191  *   HANDLE32           Event           OPTIONAL
 192  *   PIO_APC_ROUTINE    ApcRoutine      OPTIONAL
 193  *   PVOID              ApcContext      OPTIONAL
 194  *   PIO_STATUS_BLOCK   IoStatusBlock
 195  *   PVOID              Buffer
 196  *   ULONG              Length
 197  *   PLARGE_INTEGER     ByteOffset      OPTIONAL
 198  *   PULONG             Key             OPTIONAL
 199  *
 200  * IoStatusBlock->Information contains the number of bytes read on return.
 201  */
 202 NTSTATUS WINAPI NtReadFile (
 203         HANDLE FileHandle,
 204         HANDLE EventHandle,
 205         PIO_APC_ROUTINE ApcRoutine,
 206         PVOID ApcContext,
 207         PIO_STATUS_BLOCK IoStatusBlock,
 208         PVOID Buffer,
 209         ULONG Length,
 210         PLARGE_INTEGER ByteOffset,
 211         PULONG Key)
 212 {
 213         int fd, result, flags, ret;
 214         enum fd_type type;
 215
 216         FIXME("(%p,%p,%p,%p,%p,%p,0x%08lx,%p,%p),partial stub!\n",
 217                 FileHandle,EventHandle,ApcRoutine,ApcContext,IoStatusBlock,Buffer,Length,ByteOffset,Key);
 218
 219         if (IsBadWritePtr( Buffer, Length ) ||
 220             IsBadWritePtr( IoStatusBlock, sizeof *IoStatusBlock) ||
 221             IsBadWritePtr( ByteOffset, sizeof *ByteOffset) )
 222                 return STATUS_ACCESS_VIOLATION;
 223
 224         IoStatusBlock->Information = 0;
 225
 226         ret = wine_server_handle_to_fd( FileHandle, GENERIC_READ, &fd, &type, &flags );
 227         if(ret)
 228                 return ret;
 229
 230         /* FIXME: this code only does synchronous reads so far */
 231
 232         /* FIXME: depending on how libc implements this, between two processes
 233               there could be a race condition between the seek and read here */
 234         do
 235         {
 236                 result = pread( fd, Buffer, Length, ByteOffset->QuadPart);
 237         }
 238         while ( (result == -1) && ((errno == EAGAIN) || (errno == EINTR)) );
 239
 240         close( fd );
 241
 242         if (result == -1)
 243         {
 244                 return IoStatusBlock->u.Status = NTFILE_errno_to_status(errno);
 245         }
 246
 247         IoStatusBlock->Information = result;
 248         IoStatusBlock->u.Status = 0;
 249
 250         return STATUS_SUCCESS;
 251 }
 252
 253 /******************************************************************************
 254  *  NtWriteFile                                 [NTDLL.@]
 255  *  ZwWriteFile                                 [NTDLL.@]
 256  *
 257  * Parameters
 258  *   HANDLE32           FileHandle
 259  *   HANDLE32           Event           OPTIONAL
 260  *   PIO_APC_ROUTINE    ApcRoutine      OPTIONAL
 261  *   PVOID              ApcContext      OPTIONAL
 262  *   PIO_STATUS_BLOCK   IoStatusBlock
 263  *   PVOID              Buffer
 264  *   ULONG              Length
 265  *   PLARGE_INTEGER     ByteOffset      OPTIONAL
 266  *   PULONG             Key             OPTIONAL
 267  */
 268 NTSTATUS WINAPI NtWriteFile (
 269         HANDLE FileHandle,
 270         HANDLE EventHandle,
 271         PIO_APC_ROUTINE ApcRoutine,
 272         PVOID ApcContext,
 273         PIO_STATUS_BLOCK IoStatusBlock,
 274         PVOID Buffer,
 275         ULONG Length,
 276         PLARGE_INTEGER ByteOffset,
 277         PULONG Key)
 278 {
 279         FIXME("(%p,%p,%p,%p,%p,%p,0x%08lx,%p,%p),stub!\n",
 280         FileHandle,EventHandle,ApcRoutine,ApcContext,IoStatusBlock,Buffer,Length,ByteOffset,Key);
 281         return 0;
 282 }
 283
 284 /**************************************************************************
 285  *              NtDeviceIoControlFile                   [NTDLL.@]
 286  *              ZwDeviceIoControlFile                   [NTDLL.@]
 287  */
 288 NTSTATUS WINAPI NtDeviceIoControlFile(
 289         IN HANDLE DeviceHandle,
 290         IN HANDLE Event OPTIONAL,
 291         IN PIO_APC_ROUTINE UserApcRoutine OPTIONAL,
 292         IN PVOID UserApcContext OPTIONAL,
 293         OUT PIO_STATUS_BLOCK IoStatusBlock,
 294         IN ULONG IoControlCode,
 295         IN PVOID InputBuffer,
 296         IN ULONG InputBufferSize,
 297         OUT PVOID OutputBuffer,
 298         IN ULONG OutputBufferSize)
 299 {
 300         FIXME("(%p,%p,%p,%p,%p,0x%08lx,%p,0x%08lx,%p,0x%08lx): empty stub\n",
 301         DeviceHandle, Event, UserApcRoutine, UserApcContext,
 302         IoStatusBlock, IoControlCode, InputBuffer, InputBufferSize, OutputBuffer, OutputBufferSize);
 303         return 0;
 304 }
 305
 306 /******************************************************************************
 307  * NtFsControlFile [NTDLL.@]
 308  * ZwFsControlFile [NTDLL.@]
 309  */
 310 NTSTATUS WINAPI NtFsControlFile(
 311         IN HANDLE DeviceHandle,
 312         IN HANDLE Event OPTIONAL,
 313         IN PIO_APC_ROUTINE ApcRoutine OPTIONAL,
 314         IN PVOID ApcContext OPTIONAL,
 315         OUT PIO_STATUS_BLOCK IoStatusBlock,
 316         IN ULONG IoControlCode,
 317         IN PVOID InputBuffer,
 318         IN ULONG InputBufferSize,
 319         OUT PVOID OutputBuffer,
 320         IN ULONG OutputBufferSize)
 321 {
 322         FIXME("(%p,%p,%p,%p,%p,0x%08lx,%p,0x%08lx,%p,0x%08lx): stub\n",
 323         DeviceHandle,Event,ApcRoutine,ApcContext,IoStatusBlock,IoControlCode,
 324         InputBuffer,InputBufferSize,OutputBuffer,OutputBufferSize);
 325         return 0;
 326 }
 327
 328 /******************************************************************************
 329  *  NtSetVolumeInformationFile          [NTDLL.@]
 330  *  ZwSetVolumeInformationFile          [NTDLL.@]
 331  */
 332 NTSTATUS WINAPI NtSetVolumeInformationFile(
 333         IN HANDLE FileHandle,
 334         PIO_STATUS_BLOCK IoStatusBlock,
 335         PVOID FsInformation,
 336         ULONG Length,
 337         FS_INFORMATION_CLASS FsInformationClass)
 338 {
 339         FIXME("(%p,%p,%p,0x%08lx,0x%08x) stub\n",
 340         FileHandle,IoStatusBlock,FsInformation,Length,FsInformationClass);
 341         return 0;
 342 }
 343
 344 /******************************************************************************
 345  *  NtQueryInformationFile              [NTDLL.@]
 346  *  ZwQueryInformationFile              [NTDLL.@]
 347  */
 348 NTSTATUS WINAPI NtQueryInformationFile(
 349         HANDLE FileHandle,
 350         PIO_STATUS_BLOCK IoStatusBlock,
 351         PVOID FileInformation,
 352         ULONG Length,
 353         FILE_INFORMATION_CLASS FileInformationClass)
 354 {
 355         FIXME("(%p,%p,%p,0x%08lx,0x%08x),stub!\n",
 356         FileHandle,IoStatusBlock,FileInformation,Length,FileInformationClass);
 357         return 0;
 358 }
 359
 360 /******************************************************************************
 361  *  NtSetInformationFile                [NTDLL.@]
 362  *  ZwSetInformationFile                [NTDLL.@]
 363  */
 364 NTSTATUS WINAPI NtSetInformationFile(
 365         HANDLE FileHandle,
 366         PIO_STATUS_BLOCK IoStatusBlock,
 367         PVOID FileInformation,
 368         ULONG Length,
 369         FILE_INFORMATION_CLASS FileInformationClass)
 370 {
 371         FIXME("(%p,%p,%p,0x%08lx,0x%08x)\n",
 372         FileHandle,IoStatusBlock,FileInformation,Length,FileInformationClass);
 373         return 0;
 374 }
 375
 376 /******************************************************************************
 377  *  NtQueryDirectoryFile        [NTDLL.@]
 378  *  ZwQueryDirectoryFile        [NTDLL.@]
 379  *  ZwQueryDirectoryFile
 380  */
 381 NTSTATUS WINAPI NtQueryDirectoryFile(
 382         IN HANDLE FileHandle,
 383         IN HANDLE Event OPTIONAL,
 384         IN PIO_APC_ROUTINE ApcRoutine OPTIONAL,
 385         IN PVOID ApcContext OPTIONAL,
 386         OUT PIO_STATUS_BLOCK IoStatusBlock,
 387         OUT PVOID FileInformation,
 388         IN ULONG Length,
 389         IN FILE_INFORMATION_CLASS FileInformationClass,
 390         IN BOOLEAN ReturnSingleEntry,
 391         IN PUNICODE_STRING FileName OPTIONAL,
 392         IN BOOLEAN RestartScan)
 393 {
 394         FIXME("(%p %p %p %p %p %p 0x%08lx 0x%08x 0x%08x %p 0x%08x\n",
 395         FileHandle, Event, ApcRoutine, ApcContext, IoStatusBlock, FileInformation,
 396         Length, FileInformationClass, ReturnSingleEntry,
 397         debugstr_us(FileName),RestartScan);
 398         return 0;
 399 }
 400
 401 /******************************************************************************
 402  *  NtQueryVolumeInformationFile                [NTDLL.@]
 403  *  ZwQueryVolumeInformationFile                [NTDLL.@]
 404  */
 405 NTSTATUS WINAPI NtQueryVolumeInformationFile (
 406         IN HANDLE FileHandle,
 407         OUT PIO_STATUS_BLOCK IoStatusBlock,
 408         OUT PVOID FSInformation,
 409         IN ULONG Length,
 410         IN FS_INFORMATION_CLASS FSInformationClass)
 411 {
 412         ULONG len = 0;
 413
 414         FIXME("(%p %p %p 0x%08lx 0x%08x) stub!\n",
 415         FileHandle, IoStatusBlock, FSInformation, Length, FSInformationClass);
 416
 417         switch ( FSInformationClass )
 418         {
 419           case FileFsVolumeInformation:
 420             len = sizeof( FILE_FS_VOLUME_INFORMATION );
 421             break;
 422           case FileFsLabelInformation:
 423             len = 0;
 424             break;
 425
 426           case FileFsSizeInformation:
 427             len = sizeof( FILE_FS_SIZE_INFORMATION );
 428             break;
 429
 430           case FileFsDeviceInformation:
 431             len = sizeof( FILE_FS_DEVICE_INFORMATION );
 432             break;
 433           case FileFsAttributeInformation:
 434             len = sizeof( FILE_FS_ATTRIBUTE_INFORMATION );
 435             break;
 436
 437           case FileFsControlInformation:
 438             len = 0;
 439             break;
 440
 441           case FileFsFullSizeInformation:
 442             len = 0;
 443             break;
 444
 445           case FileFsObjectIdInformation:
 446             len = 0;
 447             break;
 448
 449           case FileFsMaximumInformation:
 450             len = 0;
 451             break;
 452         }
 453
 454         if (Length < len)
 455           return STATUS_BUFFER_TOO_SMALL;
 456
 457         switch ( FSInformationClass )
 458         {
 459           case FileFsVolumeInformation:
 460             break;
 461           case FileFsLabelInformation:
 462             break;
 463
 464           case FileFsSizeInformation:
 465             break;
 466
 467           case FileFsDeviceInformation:
 468             if (FSInformation)
 469             {
 470               FILE_FS_DEVICE_INFORMATION * DeviceInfo = FSInformation;
 471               DeviceInfo->DeviceType = FILE_DEVICE_DISK;
 472               DeviceInfo->Characteristics = 0;
 473               break;
 474             };
 475           case FileFsAttributeInformation:
 476             break;
 477
 478           case FileFsControlInformation:
 479             break;
 480
 481           case FileFsFullSizeInformation:
 482             break;
 483
 484           case FileFsObjectIdInformation:
 485             break;
 486
 487           case FileFsMaximumInformation:
 488             break;
 489         }
 490         IoStatusBlock->DUMMYUNIONNAME.Status = STATUS_SUCCESS;
 491         IoStatusBlock->Information = len;
 492         return STATUS_SUCCESS;
 493 }