git.oblomov.eu Git - wine/blob - 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 #include <assert.h>
  27 #ifdef HAVE_UNISTD_H
  28 # include <unistd.h>
  29 #endif
  30 #ifdef HAVE_SYS_ERRNO_H
  31 #include <sys/errno.h>
  32 #endif
  33 #ifdef HAVE_LINUX_MAJOR_H
  34 # include <linux/major.h>
  35 #endif
  36 #ifdef HAVE_SYS_STATVFS_H
  37 # include <sys/statvfs.h>
  38 #endif
  39 #ifdef HAVE_SYS_PARAM_H
  40 # include <sys/param.h>
  41 #endif
  42 #ifdef HAVE_SYS_TIME_H
  43 # include <sys/time.h>
  44 #endif
  45 #ifdef HAVE_UTIME_H
  46 # include <utime.h>
  47 #endif
  48 #ifdef STATFS_DEFINED_BY_SYS_VFS
  49 # include <sys/vfs.h>
  50 #else
  51 # ifdef STATFS_DEFINED_BY_SYS_MOUNT
  52 #  include <sys/mount.h>
  53 # else
  54 #  ifdef STATFS_DEFINED_BY_SYS_STATFS
  55 #   include <sys/statfs.h>
  56 #  endif
  57 # endif
  58 #endif
  59
  60 #define NONAMELESSUNION
  61 #define NONAMELESSSTRUCT
  62 #include "wine/unicode.h"
  63 #include "wine/debug.h"
  64 #include "wine/server.h"
  65 #include "async.h"
  66 #include "ntdll_misc.h"
  67
  68 #include "winternl.h"
  69 #include "winioctl.h"
  70
  71 WINE_DEFAULT_DEBUG_CHANNEL(ntdll);
  72
  73 mode_t FILE_umask = 0;
  74
  75 #define SECSPERDAY         86400
  76 #define SECS_1601_TO_1970  ((369 * 365 + 89) * (ULONGLONG)SECSPERDAY)
  77
  78 /**************************************************************************
  79  *                 NtOpenFile                           [NTDLL.@]
  80  *                 ZwOpenFile                           [NTDLL.@]
  81  *
  82  * Open a file.
  83  *
  84  * PARAMS
  85  *  handle    [O] Variable that receives the file handle on return
  86  *  access    [I] Access desired by the caller to the file
  87  *  attr      [I] Structue describing the file to be opened
  88  *  io        [O] Receives details about the result of the operation
  89  *  sharing   [I] Type of shared access the caller requires
  90  *  options   [I] Options for the file open
  91  *
  92  * RETURNS
  93  *  Success: 0. FileHandle and IoStatusBlock are updated.
  94  *  Failure: An NTSTATUS error code describing the error.
  95  */
  96 NTSTATUS WINAPI NtOpenFile( PHANDLE handle, ACCESS_MASK access,
  97                             POBJECT_ATTRIBUTES attr, PIO_STATUS_BLOCK io,
  98                             ULONG sharing, ULONG options )
  99 {
 100     return NtCreateFile( handle, access, attr, io, NULL, 0,
 101                          sharing, FILE_OPEN, options, NULL, 0 );
 102 }
 103
 104 /**************************************************************************
 105  *              NtCreateFile                            [NTDLL.@]
 106  *              ZwCreateFile                            [NTDLL.@]
 107  *
 108  * Either create a new file or directory, or open an existing file, device,
 109  * directory or volume.
 110  *
 111  * PARAMS
 112  *      handle       [O] Points to a variable which receives the file handle on return
 113  *      access       [I] Desired access to the file
 114  *      attr         [I] Structure describing the file
 115  *      io           [O] Receives information about the operation on return
 116  *      alloc_size   [I] Initial size of the file in bytes
 117  *      attributes   [I] Attributes to create the file with
 118  *      sharing      [I] Type of shared access the caller would like to the file
 119  *      disposition  [I] Specifies what to do, depending on whether the file already exists
 120  *      options      [I] Options for creating a new file
 121  *      ea_buffer    [I] Undocumented
 122  *      ea_length    [I] Undocumented
 123  *
 124  * RETURNS
 125  *  Success: 0. handle and io are updated.
 126  *  Failure: An NTSTATUS error code describing the error.
 127  */
 128 NTSTATUS WINAPI NtCreateFile( PHANDLE handle, ACCESS_MASK access, POBJECT_ATTRIBUTES attr,
 129                               PIO_STATUS_BLOCK io, PLARGE_INTEGER alloc_size,
 130                               ULONG attributes, ULONG sharing, ULONG disposition,
 131                               ULONG options, PVOID ea_buffer, ULONG ea_length )
 132 {
 133     static const WCHAR pipeW[] = {'\\','?','?','\\','p','i','p','e','\\'};
 134     ANSI_STRING unix_name;
 135     int created = FALSE;
 136
 137     TRACE("handle=%p access=%08lx name=%s objattr=%08lx root=%p sec=%p io=%p alloc_size=%p\n"
 138           "attr=%08lx sharing=%08lx disp=%ld options=%08lx ea=%p.0x%08lx\n",
 139           handle, access, debugstr_us(attr->ObjectName), attr->Attributes,
 140           attr->RootDirectory, attr->SecurityDescriptor, io, alloc_size,
 141           attributes, sharing, disposition, options, ea_buffer, ea_length );
 142
 143     if (attr->RootDirectory)
 144     {
 145         FIXME( "RootDirectory %p not supported\n", attr->RootDirectory );
 146         return STATUS_OBJECT_NAME_NOT_FOUND;
 147     }
 148     if (alloc_size) FIXME( "alloc_size not supported\n" );
 149
 150     /* check for named pipe */
 151
 152     if (attr->ObjectName->Length > sizeof(pipeW) &&
 153         !memicmpW( attr->ObjectName->Buffer, pipeW, sizeof(pipeW)/sizeof(WCHAR) ))
 154     {
 155         SERVER_START_REQ( open_named_pipe )
 156         {
 157             req->access = access;
 158             req->inherit = (attr->Attributes & OBJ_INHERIT) != 0;
 159             wine_server_add_data( req, attr->ObjectName->Buffer + 4,
 160                                   attr->ObjectName->Length - 4*sizeof(WCHAR) );
 161             io->u.Status = wine_server_call( req );
 162             *handle = reply->handle;
 163         }
 164         SERVER_END_REQ;
 165         return io->u.Status;
 166     }
 167
 168     io->u.Status = wine_nt_to_unix_file_name( attr->ObjectName, &unix_name, disposition,
 169                                               !(attr->Attributes & OBJ_CASE_INSENSITIVE) );
 170
 171     if (io->u.Status == STATUS_NO_SUCH_FILE &&
 172         disposition != FILE_OPEN && disposition != FILE_OVERWRITE)
 173     {
 174         created = TRUE;
 175         io->u.Status = STATUS_SUCCESS;
 176     }
 177
 178     if (io->u.Status == STATUS_SUCCESS)
 179     {
 180         SERVER_START_REQ( create_file )
 181         {
 182             req->access     = access;
 183             req->inherit    = (attr->Attributes & OBJ_INHERIT) != 0;
 184             req->sharing    = sharing;
 185             req->create     = disposition;
 186             req->options    = options;
 187             req->attrs      = attributes;
 188             wine_server_add_data( req, unix_name.Buffer, unix_name.Length );
 189             io->u.Status = wine_server_call( req );
 190             *handle = reply->handle;
 191         }
 192         SERVER_END_REQ;
 193         RtlFreeAnsiString( &unix_name );
 194     }
 195     else WARN("%s not found (%lx)\n", debugstr_us(attr->ObjectName), io->u.Status );
 196
 197     if (io->u.Status == STATUS_SUCCESS)
 198     {
 199         if (created) io->Information = FILE_CREATED;
 200         else switch(disposition)
 201         {
 202         case FILE_SUPERSEDE:
 203             io->Information = FILE_SUPERSEDED;
 204             break;
 205         case FILE_CREATE:
 206             io->Information = FILE_CREATED;
 207             break;
 208         case FILE_OPEN:
 209         case FILE_OPEN_IF:
 210             io->Information = FILE_OPENED;
 211             break;
 212         case FILE_OVERWRITE:
 213         case FILE_OVERWRITE_IF:
 214             io->Information = FILE_OVERWRITTEN;
 215             break;
 216         }
 217     }
 218
 219     return io->u.Status;
 220 }
 221
 222 /***********************************************************************
 223  *                  Asynchronous file I/O                              *
 224  */
 225 static DWORD fileio_get_async_count(const async_private *ovp);
 226 static void CALLBACK fileio_call_completion_func(ULONG_PTR data);
 227 static void fileio_async_cleanup(async_private *ovp);
 228
 229 static async_ops fileio_async_ops =
 230 {
 231     fileio_get_async_count,        /* get_count */
 232     fileio_call_completion_func,   /* call_completion */
 233     fileio_async_cleanup           /* cleanup */
 234 };
 235
 236 static async_ops fileio_nocomp_async_ops =
 237 {
 238     fileio_get_async_count,        /* get_count */
 239     NULL,                          /* call_completion */
 240     fileio_async_cleanup           /* cleanup */
 241 };
 242
 243 typedef struct async_fileio
 244 {
 245     struct async_private             async;
 246     PIO_APC_ROUTINE                  apc;
 247     void*                            apc_user;
 248     char                             *buffer;
 249     unsigned int                     count;
 250     off_t                            offset;
 251     int                              queue_apc_on_error;
 252     BOOL                             avail_mode;
 253 } async_fileio;
 254
 255 static DWORD fileio_get_async_count(const struct async_private *ovp)
 256 {
 257     const async_fileio *fileio = (const async_fileio*) ovp;
 258
 259     if (fileio->count < fileio->async.iosb->Information)
 260         return 0;
 261     return fileio->count - fileio->async.iosb->Information;
 262 }
 263
 264 static void CALLBACK fileio_call_completion_func(ULONG_PTR data)
 265 {
 266     async_fileio *ovp = (async_fileio*) data;
 267     TRACE("data: %p\n", ovp);
 268
 269     if ((ovp->async.iosb->u.Status == STATUS_SUCCESS) || ovp->queue_apc_on_error)
 270         ovp->apc( ovp->apc_user, ovp->async.iosb, ovp->async.iosb->Information );
 271
 272     fileio_async_cleanup( &ovp->async );
 273 }
 274
 275 static void fileio_async_cleanup( struct async_private *ovp )
 276 {
 277     RtlFreeHeap( GetProcessHeap(), 0, ovp );
 278 }
 279
 280 /***********************************************************************
 281  *           FILE_GetNtStatus(void)
 282  *
 283  * Retrieve the Nt Status code from errno.
 284  * Try to be consistent with FILE_SetDosError().
 285  */
 286 NTSTATUS FILE_GetNtStatus(void)
 287 {
 288     int err = errno;
 289
 290     TRACE( "errno = %d\n", errno );
 291     switch (err)
 292     {
 293     case EAGAIN:    return STATUS_SHARING_VIOLATION;
 294     case EBADF:     return STATUS_INVALID_HANDLE;
 295     case ENOSPC:    return STATUS_DISK_FULL;
 296     case EPERM:
 297     case EROFS:
 298     case EACCES:    return STATUS_ACCESS_DENIED;
 299     case ENOTDIR:   return STATUS_OBJECT_PATH_NOT_FOUND;
 300     case ENOENT:    return STATUS_OBJECT_NAME_NOT_FOUND;
 301     case EISDIR:    return STATUS_FILE_IS_A_DIRECTORY;
 302     case EMFILE:
 303     case ENFILE:    return STATUS_TOO_MANY_OPENED_FILES;
 304     case EINVAL:    return STATUS_INVALID_PARAMETER;
 305     case ENOTEMPTY: return STATUS_DIRECTORY_NOT_EMPTY;
 306     case EPIPE:     return STATUS_PIPE_BROKEN;
 307     case EIO:       return STATUS_DEVICE_NOT_READY;
 308 #ifdef ENOMEDIUM
 309     case ENOMEDIUM: return STATUS_NO_MEDIA_IN_DEVICE;
 310 #endif
 311     case ENOTTY:
 312     case EOPNOTSUPP:return STATUS_NOT_SUPPORTED;
 313     case ECONNRESET:return STATUS_PIPE_DISCONNECTED;
 314     case ENOEXEC:   /* ?? */
 315     case ESPIPE:    /* ?? */
 316     case EEXIST:    /* ?? */
 317     default:
 318         FIXME( "Converting errno %d to STATUS_UNSUCCESSFUL\n", err );
 319         return STATUS_UNSUCCESSFUL;
 320     }
 321 }
 322
 323 /***********************************************************************
 324  *             FILE_AsyncReadService      (INTERNAL)
 325  *
 326  *  This function is called while the client is waiting on the
 327  *  server, so we can't make any server calls here.
 328  */
 329 static void FILE_AsyncReadService(async_private *ovp)
 330 {
 331     async_fileio *fileio = (async_fileio*) ovp;
 332     IO_STATUS_BLOCK*  io_status = fileio->async.iosb;
 333     int result;
 334     int already = io_status->Information;
 335
 336     TRACE("%p %p\n", io_status, fileio->buffer );
 337
 338     /* check to see if the data is ready (non-blocking) */
 339
 340     if ( fileio->avail_mode )
 341         result = read(ovp->fd, &fileio->buffer[already], fileio->count - already);
 342     else
 343     {
 344         result = pread(ovp->fd, &fileio->buffer[already], fileio->count - already,
 345                        fileio->offset + already);
 346         if ((result < 0) && (errno == ESPIPE))
 347             result = read(ovp->fd, &fileio->buffer[already], fileio->count - already);
 348     }
 349
 350     if ((result < 0) && ((errno == EAGAIN) || (errno == EINTR)))
 351     {
 352         TRACE("Deferred read %d\n",errno);
 353         io_status->u.Status = STATUS_PENDING;
 354         return;
 355     }
 356
 357     /* check to see if the transfer is complete */
 358     if (result < 0)
 359     {
 360         io_status->u.Status = FILE_GetNtStatus();
 361         return;
 362     }
 363     else if (result == 0)
 364     {
 365         io_status->u.Status = io_status->Information ? STATUS_SUCCESS : STATUS_END_OF_FILE;
 366         return;
 367     }
 368
 369     TRACE("status before: %s\n", (io_status->u.Status == STATUS_SUCCESS) ? "success" : "pending");
 370     io_status->Information += result;
 371     if (io_status->Information >= fileio->count || fileio->avail_mode )
 372         io_status->u.Status = STATUS_SUCCESS;
 373     else
 374         io_status->u.Status = STATUS_PENDING;
 375
 376     TRACE("read %d more bytes %ld/%d so far (%s)\n",
 377           result, io_status->Information, fileio->count, (io_status->u.Status == STATUS_SUCCESS) ? "success" : "pending");
 378 }
 379
 380
 381 /******************************************************************************
 382  *  NtReadFile                                  [NTDLL.@]
 383  *  ZwReadFile                                  [NTDLL.@]
 384  *
 385  * Read from an open file handle.
 386  *
 387  * PARAMS
 388  *  FileHandle    [I] Handle returned from ZwOpenFile() or ZwCreateFile()
 389  *  Event         [I] Event to signal upon completion (or NULL)
 390  *  ApcRoutine    [I] Callback to call upon completion (or NULL)
 391  *  ApcContext    [I] Context for ApcRoutine (or NULL)
 392  *  IoStatusBlock [O] Receives information about the operation on return
 393  *  Buffer        [O] Destination for the data read
 394  *  Length        [I] Size of Buffer
 395  *  ByteOffset    [O] Destination for the new file pointer position (or NULL)
 396  *  Key           [O] Function unknown (may be NULL)
 397  *
 398  * RETURNS
 399  *  Success: 0. IoStatusBlock is updated, and the Information member contains
 400  *           The number of bytes read.
 401  *  Failure: An NTSTATUS error code describing the error.
 402  */
 403 NTSTATUS WINAPI NtReadFile(HANDLE hFile, HANDLE hEvent,
 404                            PIO_APC_ROUTINE apc, void* apc_user,
 405                            PIO_STATUS_BLOCK io_status, void* buffer, ULONG length,
 406                            PLARGE_INTEGER offset, PULONG key)
 407 {
 408     int unix_handle, flags;
 409
 410     TRACE("(%p,%p,%p,%p,%p,%p,0x%08lx,%p,%p),partial stub!\n",
 411           hFile,hEvent,apc,apc_user,io_status,buffer,length,offset,key);
 412
 413     io_status->Information = 0;
 414     io_status->u.Status = wine_server_handle_to_fd( hFile, GENERIC_READ, &unix_handle, &flags );
 415     if (io_status->u.Status) return io_status->u.Status;
 416
 417     if (flags & FD_FLAG_RECV_SHUTDOWN)
 418     {
 419         wine_server_release_fd( hFile, unix_handle );
 420         return STATUS_PIPE_DISCONNECTED;
 421     }
 422
 423     if (flags & FD_FLAG_TIMEOUT)
 424     {
 425         if (hEvent)
 426         {
 427             /* this shouldn't happen, but check it */
 428             FIXME("NIY-hEvent\n");
 429             wine_server_release_fd( hFile, unix_handle );
 430             return STATUS_NOT_IMPLEMENTED;
 431         }
 432         io_status->u.Status = NtCreateEvent(&hEvent, SYNCHRONIZE, NULL, 0, 0);
 433         if (io_status->u.Status)
 434         {
 435             wine_server_release_fd( hFile, unix_handle );
 436             return io_status->u.Status;
 437         }
 438     }
 439
 440     if (flags & (FD_FLAG_OVERLAPPED|FD_FLAG_TIMEOUT))
 441     {
 442         async_fileio*   ovp;
 443         NTSTATUS ret;
 444
 445         if (!(ovp = RtlAllocateHeap(GetProcessHeap(), 0, sizeof(async_fileio))))
 446         {
 447             wine_server_release_fd( hFile, unix_handle );
 448             if (flags & FD_FLAG_TIMEOUT) NtClose(hEvent);
 449             return STATUS_NO_MEMORY;
 450         }
 451         ovp->async.ops = (apc ? &fileio_async_ops : &fileio_nocomp_async_ops );
 452         ovp->async.handle = hFile;
 453         ovp->async.fd = unix_handle;  /* FIXME */
 454         ovp->async.type = ASYNC_TYPE_READ;
 455         ovp->async.func = FILE_AsyncReadService;
 456         ovp->async.event = hEvent;
 457         ovp->async.iosb = io_status;
 458         ovp->count = length;
 459         if ( offset == NULL )
 460             ovp->offset = 0;
 461         else
 462         {
 463             ovp->offset = offset->QuadPart;
 464             if (offset->u.HighPart && ovp->offset == offset->u.LowPart)
 465                 FIXME("High part of offset is lost\n");
 466         }
 467         ovp->apc = apc;
 468         ovp->apc_user = apc_user;
 469         ovp->buffer = buffer;
 470         ovp->queue_apc_on_error = 0;
 471         ovp->avail_mode = (flags & FD_FLAG_AVAILABLE);
 472         NtResetEvent(hEvent, NULL);
 473
 474         ret = register_new_async(&ovp->async);
 475         if (ret != STATUS_SUCCESS)
 476         {
 477             wine_server_release_fd( hFile, unix_handle );
 478             if (flags & FD_FLAG_TIMEOUT) NtClose(hEvent);
 479             RtlFreeHeap(GetProcessHeap(), 0, ovp);
 480             return ret;
 481         }
 482         if (flags & FD_FLAG_TIMEOUT)
 483         {
 484             ret = NtWaitForSingleObject(hEvent, TRUE, NULL);
 485             NtClose(hEvent);
 486             if (ret != STATUS_USER_APC)
 487                 ovp->queue_apc_on_error = 1;
 488         }
 489         else
 490         {
 491             LARGE_INTEGER   timeout;
 492
 493             /* let some APC be run, this will read some already pending data */
 494             timeout.u.LowPart = timeout.u.HighPart = 0;
 495             ret = NtDelayExecution( TRUE, &timeout );
 496             /* the apc didn't run and therefore the completion routine now
 497              * needs to be sent errors.
 498              * Note that there is no race between setting this flag and
 499              * returning errors because apc's are run only during alertable
 500              * waits */
 501             if (ret != STATUS_USER_APC)
 502                 ovp->queue_apc_on_error = 1;
 503             /* if we only have to read the available data, and none is available,
 504              * simply cancel the request. If data was available, it has been read
 505              * while in by previous call (NtDelayExecution)
 506              */
 507             if ((flags & FD_FLAG_AVAILABLE) && io_status->u.Status == STATUS_PENDING)
 508             {
 509                 io_status->u.Status = STATUS_SUCCESS;
 510                 register_old_async(&ovp->async);
 511             }
 512         }
 513         TRACE("= 0x%08lx\n", io_status->u.Status);
 514         return io_status->u.Status;
 515     }
 516
 517     if (offset)
 518     {
 519         FILE_POSITION_INFORMATION   fpi;
 520
 521         fpi.CurrentByteOffset = *offset;
 522         io_status->u.Status = NtSetInformationFile(hFile, io_status, &fpi, sizeof(fpi),
 523                                                    FilePositionInformation);
 524         if (io_status->u.Status)
 525         {
 526             wine_server_release_fd( hFile, unix_handle );
 527             return io_status->u.Status;
 528         }
 529     }
 530     /* code for synchronous reads */
 531     while ((io_status->Information = read( unix_handle, buffer, length )) == -1)
 532     {
 533         if ((errno == EAGAIN) || (errno == EINTR)) continue;
 534         if (errno == EFAULT) FIXME( "EFAULT handling broken for now\n" );
 535         io_status->u.Status = FILE_GetNtStatus();
 536         break;
 537     }
 538     wine_server_release_fd( hFile, unix_handle );
 539     TRACE("= 0x%08lx\n", io_status->u.Status);
 540     return io_status->u.Status;
 541 }
 542
 543 /***********************************************************************
 544  *             FILE_AsyncWriteService      (INTERNAL)
 545  *
 546  *  This function is called while the client is waiting on the
 547  *  server, so we can't make any server calls here.
 548  */
 549 static void FILE_AsyncWriteService(struct async_private *ovp)
 550 {
 551     async_fileio *fileio = (async_fileio *) ovp;
 552     PIO_STATUS_BLOCK io_status = fileio->async.iosb;
 553     int result;
 554     int already = io_status->Information;
 555
 556     TRACE("(%p %p)\n",io_status,fileio->buffer);
 557
 558     /* write some data (non-blocking) */
 559
 560     if ( fileio->avail_mode )
 561         result = write(ovp->fd, &fileio->buffer[already], fileio->count - already);
 562     else
 563     {
 564         result = pwrite(ovp->fd, &fileio->buffer[already], fileio->count - already,
 565                         fileio->offset + already);
 566         if ((result < 0) && (errno == ESPIPE))
 567             result = write(ovp->fd, &fileio->buffer[already], fileio->count - already);
 568     }
 569
 570     if ((result < 0) && ((errno == EAGAIN) || (errno == EINTR)))
 571     {
 572         io_status->u.Status = STATUS_PENDING;
 573         return;
 574     }
 575
 576     /* check to see if the transfer is complete */
 577     if (result < 0)
 578     {
 579         io_status->u.Status = FILE_GetNtStatus();
 580         return;
 581     }
 582
 583     io_status->Information += result;
 584     io_status->u.Status = (io_status->Information < fileio->count) ? STATUS_PENDING : STATUS_SUCCESS;
 585     TRACE("wrote %d more bytes %ld/%d so far\n",result,io_status->Information,fileio->count);
 586 }
 587
 588 /******************************************************************************
 589  *  NtWriteFile                                 [NTDLL.@]
 590  *  ZwWriteFile                                 [NTDLL.@]
 591  *
 592  * Write to an open file handle.
 593  *
 594  * PARAMS
 595  *  FileHandle    [I] Handle returned from ZwOpenFile() or ZwCreateFile()
 596  *  Event         [I] Event to signal upon completion (or NULL)
 597  *  ApcRoutine    [I] Callback to call upon completion (or NULL)
 598  *  ApcContext    [I] Context for ApcRoutine (or NULL)
 599  *  IoStatusBlock [O] Receives information about the operation on return
 600  *  Buffer        [I] Source for the data to write
 601  *  Length        [I] Size of Buffer
 602  *  ByteOffset    [O] Destination for the new file pointer position (or NULL)
 603  *  Key           [O] Function unknown (may be NULL)
 604  *
 605  * RETURNS
 606  *  Success: 0. IoStatusBlock is updated, and the Information member contains
 607  *           The number of bytes written.
 608  *  Failure: An NTSTATUS error code describing the error.
 609  */
 610 NTSTATUS WINAPI NtWriteFile(HANDLE hFile, HANDLE hEvent,
 611                             PIO_APC_ROUTINE apc, void* apc_user,
 612                             PIO_STATUS_BLOCK io_status,
 613                             const void* buffer, ULONG length,
 614                             PLARGE_INTEGER offset, PULONG key)
 615 {
 616     int unix_handle, flags;
 617
 618     TRACE("(%p,%p,%p,%p,%p,%p,0x%08lx,%p,%p)!\n",
 619           hFile,hEvent,apc,apc_user,io_status,buffer,length,offset,key);
 620
 621     io_status->Information = 0;
 622     io_status->u.Status = wine_server_handle_to_fd( hFile, GENERIC_WRITE, &unix_handle, &flags );
 623     if (io_status->u.Status) return io_status->u.Status;
 624
 625     if (flags & FD_FLAG_SEND_SHUTDOWN)
 626     {
 627         wine_server_release_fd( hFile, unix_handle );
 628         return STATUS_PIPE_DISCONNECTED;
 629     }
 630
 631     if (flags & (FD_FLAG_OVERLAPPED|FD_FLAG_TIMEOUT))
 632     {
 633         async_fileio*   ovp;
 634         NTSTATUS ret;
 635
 636         if (!(ovp = RtlAllocateHeap(GetProcessHeap(), 0, sizeof(async_fileio))))
 637         {
 638             wine_server_release_fd( hFile, unix_handle );
 639             return STATUS_NO_MEMORY;
 640         }
 641         ovp->async.ops = (apc ? &fileio_async_ops : &fileio_nocomp_async_ops );
 642         ovp->async.handle = hFile;
 643         ovp->async.fd = unix_handle;  /* FIXME */
 644         ovp->async.type = ASYNC_TYPE_WRITE;
 645         ovp->async.func = FILE_AsyncWriteService;
 646         ovp->async.event = hEvent;
 647         ovp->async.iosb = io_status;
 648         ovp->count = length;
 649         if (offset) {
 650             ovp->offset = offset->QuadPart;
 651             if (offset->u.HighPart && ovp->offset == offset->u.LowPart)
 652                 FIXME("High part of offset is lost\n");
 653         } else {
 654             ovp->offset = 0;
 655         }
 656         ovp->apc = apc;
 657         ovp->apc_user = apc_user;
 658         ovp->buffer = (void*)buffer;
 659         ovp->queue_apc_on_error = 0;
 660         ovp->avail_mode = (flags & FD_FLAG_AVAILABLE);
 661         NtResetEvent(hEvent, NULL);
 662
 663         io_status->Information = 0;
 664         ret = register_new_async(&ovp->async);
 665         if (ret != STATUS_SUCCESS)
 666             return ret;
 667         if (flags & FD_FLAG_TIMEOUT)
 668         {
 669             ret = NtWaitForSingleObject(hEvent, TRUE, NULL);
 670             NtClose(hEvent);
 671             if (ret != STATUS_USER_APC)
 672                 ovp->queue_apc_on_error = 1;
 673         }
 674         else
 675         {
 676             LARGE_INTEGER   timeout;
 677
 678             /* let some APC be run, this will write as much data as possible */
 679             timeout.u.LowPart = timeout.u.HighPart = 0;
 680             ret = NtDelayExecution( TRUE, &timeout );
 681             /* the apc didn't run and therefore the completion routine now
 682              * needs to be sent errors.
 683              * Note that there is no race between setting this flag and
 684              * returning errors because apc's are run only during alertable
 685              * waits */
 686             if (ret != STATUS_USER_APC)
 687                 ovp->queue_apc_on_error = 1;
 688         }
 689         return io_status->u.Status;
 690     }
 691
 692     if (offset)
 693     {
 694         FILE_POSITION_INFORMATION   fpi;
 695
 696         fpi.CurrentByteOffset = *offset;
 697         io_status->u.Status = NtSetInformationFile(hFile, io_status, &fpi, sizeof(fpi),
 698                                                    FilePositionInformation);
 699         if (io_status->u.Status)
 700         {
 701             wine_server_release_fd( hFile, unix_handle );
 702             return io_status->u.Status;
 703         }
 704     }
 705
 706     /* synchronous file write */
 707     while ((io_status->Information = write( unix_handle, buffer, length )) == -1)
 708     {
 709         if ((errno == EAGAIN) || (errno == EINTR)) continue;
 710         if (errno == EFAULT) FIXME( "EFAULT handling broken for now\n" );
 711         if (errno == ENOSPC) io_status->u.Status = STATUS_DISK_FULL;
 712         else io_status->u.Status = FILE_GetNtStatus();
 713         break;
 714     }
 715     wine_server_release_fd( hFile, unix_handle );
 716     return io_status->u.Status;
 717 }
 718
 719 /**************************************************************************
 720  *              NtDeviceIoControlFile                   [NTDLL.@]
 721  *              ZwDeviceIoControlFile                   [NTDLL.@]
 722  *
 723  * Perform an I/O control operation on an open file handle.
 724  *
 725  * PARAMS
 726  *  DeviceHandle     [I] Handle returned from ZwOpenFile() or ZwCreateFile()
 727  *  Event            [I] Event to signal upon completion (or NULL)
 728  *  ApcRoutine       [I] Callback to call upon completion (or NULL)
 729  *  ApcContext       [I] Context for ApcRoutine (or NULL)
 730  *  IoStatusBlock    [O] Receives information about the operation on return
 731  *  IoControlCode    [I] Control code for the operation to perform
 732  *  InputBuffer      [I] Source for any input data required (or NULL)
 733  *  InputBufferSize  [I] Size of InputBuffer
 734  *  OutputBuffer     [O] Source for any output data returned (or NULL)
 735  *  OutputBufferSize [I] Size of OutputBuffer
 736  *
 737  * RETURNS
 738  *  Success: 0. IoStatusBlock is updated.
 739  *  Failure: An NTSTATUS error code describing the error.
 740  */
 741 NTSTATUS WINAPI NtDeviceIoControlFile(HANDLE DeviceHandle, HANDLE hEvent,
 742                                       PIO_APC_ROUTINE UserApcRoutine,
 743                                       PVOID UserApcContext,
 744                                       PIO_STATUS_BLOCK IoStatusBlock,
 745                                       ULONG IoControlCode,
 746                                       PVOID InputBuffer,
 747                                       ULONG InputBufferSize,
 748                                       PVOID OutputBuffer,
 749                                       ULONG OutputBufferSize)
 750 {
 751     TRACE("(%p,%p,%p,%p,%p,0x%08lx,%p,0x%08lx,%p,0x%08lx)\n",
 752           DeviceHandle, hEvent, UserApcRoutine, UserApcContext,
 753           IoStatusBlock, IoControlCode,
 754           InputBuffer, InputBufferSize, OutputBuffer, OutputBufferSize);
 755
 756     if (CDROM_DeviceIoControl(DeviceHandle, hEvent,
 757                               UserApcRoutine, UserApcContext,
 758                               IoStatusBlock, IoControlCode,
 759                               InputBuffer, InputBufferSize,
 760                               OutputBuffer, OutputBufferSize) == STATUS_NO_SUCH_DEVICE)
 761     {
 762         /* it wasn't a CDROM */
 763         FIXME("Unimplemented dwIoControlCode=%08lx\n", IoControlCode);
 764         IoStatusBlock->u.Status = STATUS_NOT_IMPLEMENTED;
 765         IoStatusBlock->Information = 0;
 766         if (hEvent) NtSetEvent(hEvent, NULL);
 767     }
 768     return IoStatusBlock->u.Status;
 769 }
 770
 771 /******************************************************************************
 772  * NtFsControlFile [NTDLL.@]
 773  * ZwFsControlFile [NTDLL.@]
 774  */
 775 NTSTATUS WINAPI NtFsControlFile(
 776         IN HANDLE DeviceHandle,
 777         IN HANDLE Event OPTIONAL,
 778         IN PIO_APC_ROUTINE ApcRoutine OPTIONAL,
 779         IN PVOID ApcContext OPTIONAL,
 780         OUT PIO_STATUS_BLOCK IoStatusBlock,
 781         IN ULONG IoControlCode,
 782         IN PVOID InputBuffer,
 783         IN ULONG InputBufferSize,
 784         OUT PVOID OutputBuffer,
 785         IN ULONG OutputBufferSize)
 786 {
 787         FIXME("(%p,%p,%p,%p,%p,0x%08lx,%p,0x%08lx,%p,0x%08lx): stub\n",
 788         DeviceHandle,Event,ApcRoutine,ApcContext,IoStatusBlock,IoControlCode,
 789         InputBuffer,InputBufferSize,OutputBuffer,OutputBufferSize);
 790         return 0;
 791 }
 792
 793 /******************************************************************************
 794  *  NtSetVolumeInformationFile          [NTDLL.@]
 795  *  ZwSetVolumeInformationFile          [NTDLL.@]
 796  *
 797  * Set volume information for an open file handle.
 798  *
 799  * PARAMS
 800  *  FileHandle         [I] Handle returned from ZwOpenFile() or ZwCreateFile()
 801  *  IoStatusBlock      [O] Receives information about the operation on return
 802  *  FsInformation      [I] Source for volume information
 803  *  Length             [I] Size of FsInformation
 804  *  FsInformationClass [I] Type of volume information to set
 805  *
 806  * RETURNS
 807  *  Success: 0. IoStatusBlock is updated.
 808  *  Failure: An NTSTATUS error code describing the error.
 809  */
 810 NTSTATUS WINAPI NtSetVolumeInformationFile(
 811         IN HANDLE FileHandle,
 812         PIO_STATUS_BLOCK IoStatusBlock,
 813         PVOID FsInformation,
 814         ULONG Length,
 815         FS_INFORMATION_CLASS FsInformationClass)
 816 {
 817         FIXME("(%p,%p,%p,0x%08lx,0x%08x) stub\n",
 818         FileHandle,IoStatusBlock,FsInformation,Length,FsInformationClass);
 819         return 0;
 820 }
 821
 822 /******************************************************************************
 823  *  NtQueryInformationFile              [NTDLL.@]
 824  *  ZwQueryInformationFile              [NTDLL.@]
 825  *
 826  * Get information about an open file handle.
 827  *
 828  * PARAMS
 829  *  hFile    [I] Handle returned from ZwOpenFile() or ZwCreateFile()
 830  *  io       [O] Receives information about the operation on return
 831  *  ptr      [O] Destination for file information
 832  *  len      [I] Size of FileInformation
 833  *  class    [I] Type of file information to get
 834  *
 835  * RETURNS
 836  *  Success: 0. IoStatusBlock and FileInformation are updated.
 837  *  Failure: An NTSTATUS error code describing the error.
 838  */
 839 NTSTATUS WINAPI NtQueryInformationFile( HANDLE hFile, PIO_STATUS_BLOCK io,
 840                                         PVOID ptr, LONG len, FILE_INFORMATION_CLASS class )
 841 {
 842     static const size_t info_sizes[] =
 843     {
 844         0,
 845         sizeof(FILE_DIRECTORY_INFORMATION),            /* FileDirectoryInformation */
 846         sizeof(FILE_FULL_DIRECTORY_INFORMATION),       /* FileFullDirectoryInformation */
 847         sizeof(FILE_BOTH_DIRECTORY_INFORMATION),       /* FileBothDirectoryInformation */
 848         sizeof(FILE_BASIC_INFORMATION),                /* FileBasicInformation */
 849         sizeof(FILE_STANDARD_INFORMATION),             /* FileStandardInformation */
 850         sizeof(FILE_INTERNAL_INFORMATION),             /* FileInternalInformation */
 851         sizeof(FILE_EA_INFORMATION),                   /* FileEaInformation */
 852         sizeof(FILE_ACCESS_INFORMATION),               /* FileAccessInformation */
 853         sizeof(FILE_NAME_INFORMATION)-sizeof(WCHAR),   /* FileNameInformation */
 854         sizeof(FILE_RENAME_INFORMATION)-sizeof(WCHAR), /* FileRenameInformation */
 855         0,                                             /* FileLinkInformation */
 856         sizeof(FILE_NAMES_INFORMATION)-sizeof(WCHAR),  /* FileNamesInformation */
 857         sizeof(FILE_DISPOSITION_INFORMATION),          /* FileDispositionInformation */
 858         sizeof(FILE_POSITION_INFORMATION),             /* FilePositionInformation */
 859         sizeof(FILE_FULL_EA_INFORMATION),              /* FileFullEaInformation */
 860         sizeof(FILE_MODE_INFORMATION),                 /* FileModeInformation */
 861         sizeof(FILE_ALIGNMENT_INFORMATION),            /* FileAlignmentInformation */
 862         sizeof(FILE_ALL_INFORMATION)-sizeof(WCHAR),    /* FileAllInformation */
 863         sizeof(FILE_ALLOCATION_INFORMATION),           /* FileAllocationInformation */
 864         sizeof(FILE_END_OF_FILE_INFORMATION),          /* FileEndOfFileInformation */
 865         0,                                             /* FileAlternateNameInformation */
 866         sizeof(FILE_STREAM_INFORMATION)-sizeof(WCHAR), /* FileStreamInformation */
 867         0,                                             /* FilePipeInformation */
 868         0,                                             /* FilePipeLocalInformation */
 869         0,                                             /* FilePipeRemoteInformation */
 870         0,                                             /* FileMailslotQueryInformation */
 871         0,                                             /* FileMailslotSetInformation */
 872         0,                                             /* FileCompressionInformation */
 873         0,                                             /* FileObjectIdInformation */
 874         0,                                             /* FileCompletionInformation */
 875         0,                                             /* FileMoveClusterInformation */
 876         0,                                             /* FileQuotaInformation */
 877         0,                                             /* FileReparsePointInformation */
 878         0,                                             /* FileNetworkOpenInformation */
 879         0,                                             /* FileAttributeTagInformation */
 880         0                                              /* FileTrackingInformation */
 881     };
 882
 883     struct stat st;
 884     int fd;
 885
 886     TRACE("(%p,%p,%p,0x%08lx,0x%08x)\n", hFile, io, ptr, len, class);
 887
 888     io->Information = 0;
 889
 890     if (class <= 0 || class >= FileMaximumInformation)
 891         return io->u.Status = STATUS_INVALID_INFO_CLASS;
 892     if (!info_sizes[class])
 893     {
 894         FIXME("Unsupported class (%d)\n", class);
 895         return io->u.Status = STATUS_NOT_IMPLEMENTED;
 896     }
 897     if (len < info_sizes[class])
 898         return io->u.Status = STATUS_INFO_LENGTH_MISMATCH;
 899
 900     if ((io->u.Status = wine_server_handle_to_fd( hFile, 0, &fd, NULL )))
 901         return io->u.Status;
 902
 903     switch (class)
 904     {
 905     case FileBasicInformation:
 906         {
 907             FILE_BASIC_INFORMATION *info = ptr;
 908
 909             if (fstat( fd, &st ) == -1)
 910                 io->u.Status = FILE_GetNtStatus();
 911             else if (!S_ISREG(st.st_mode) && !S_ISDIR(st.st_mode))
 912                 io->u.Status = STATUS_INVALID_INFO_CLASS;
 913             else
 914             {
 915                 if (S_ISDIR(st.st_mode)) info->FileAttributes = FILE_ATTRIBUTE_DIRECTORY;
 916                 else info->FileAttributes = FILE_ATTRIBUTE_ARCHIVE;
 917                 if (!(st.st_mode & S_IWUSR)) info->FileAttributes |= FILE_ATTRIBUTE_READONLY;
 918                 RtlSecondsSince1970ToTime( st.st_mtime, &info->CreationTime);
 919                 RtlSecondsSince1970ToTime( st.st_mtime, &info->LastWriteTime);
 920                 RtlSecondsSince1970ToTime( st.st_ctime, &info->ChangeTime);
 921                 RtlSecondsSince1970ToTime( st.st_atime, &info->LastAccessTime);
 922             }
 923         }
 924         break;
 925     case FileStandardInformation:
 926         {
 927             FILE_STANDARD_INFORMATION *info = ptr;
 928
 929             if (fstat( fd, &st ) == -1) io->u.Status = FILE_GetNtStatus();
 930             else
 931             {
 932                 if ((info->Directory = S_ISDIR(st.st_mode)))
 933                 {
 934                     info->AllocationSize.QuadPart = 0;
 935                     info->EndOfFile.QuadPart      = 0;
 936                     info->NumberOfLinks           = 1;
 937                     info->DeletePending           = FALSE;
 938                 }
 939                 else
 940                 {
 941                     info->AllocationSize.QuadPart = (ULONGLONG)st.st_blocks * 512;
 942                     info->EndOfFile.QuadPart      = st.st_size;
 943                     info->NumberOfLinks           = st.st_nlink;
 944                     info->DeletePending           = FALSE; /* FIXME */
 945                 }
 946             }
 947         }
 948         break;
 949     case FilePositionInformation:
 950         {
 951             FILE_POSITION_INFORMATION *info = ptr;
 952             off_t res = lseek( fd, 0, SEEK_CUR );
 953             if (res == (off_t)-1) io->u.Status = FILE_GetNtStatus();
 954             else info->CurrentByteOffset.QuadPart = res;
 955         }
 956         break;
 957     case FileInternalInformation:
 958         {
 959             FILE_INTERNAL_INFORMATION *info = ptr;
 960
 961             if (fstat( fd, &st ) == -1) io->u.Status = FILE_GetNtStatus();
 962             else info->IndexNumber.QuadPart = st.st_ino;
 963         }
 964         break;
 965     case FileEaInformation:
 966         {
 967             FILE_EA_INFORMATION *info = ptr;
 968             info->EaSize = 0;
 969         }
 970         break;
 971     case FileEndOfFileInformation:
 972         {
 973             FILE_END_OF_FILE_INFORMATION *info = ptr;
 974
 975             if (fstat( fd, &st ) == -1) io->u.Status = FILE_GetNtStatus();
 976             else info->EndOfFile.QuadPart = S_ISDIR(st.st_mode) ? 0 : st.st_size;
 977         }
 978         break;
 979     case FileAllInformation:
 980         {
 981             FILE_ALL_INFORMATION *info = ptr;
 982
 983             if (fstat( fd, &st ) == -1) io->u.Status = FILE_GetNtStatus();
 984             else if (!S_ISREG(st.st_mode) && !S_ISDIR(st.st_mode))
 985                 io->u.Status = STATUS_INVALID_INFO_CLASS;
 986             else
 987             {
 988                 if ((info->StandardInformation.Directory = S_ISDIR(st.st_mode)))
 989                 {
 990                     info->BasicInformation.FileAttributes = FILE_ATTRIBUTE_DIRECTORY;
 991                     info->StandardInformation.AllocationSize.QuadPart = 0;
 992                     info->StandardInformation.EndOfFile.QuadPart      = 0;
 993                     info->StandardInformation.NumberOfLinks           = 1;
 994                     info->StandardInformation.DeletePending           = FALSE;
 995                 }
 996                 else
 997                 {
 998                     info->BasicInformation.FileAttributes = FILE_ATTRIBUTE_ARCHIVE;
 999                     info->StandardInformation.AllocationSize.QuadPart = (ULONGLONG)st.st_blocks * 512;
1000                     info->StandardInformation.EndOfFile.QuadPart      = st.st_size;
1001                     info->StandardInformation.NumberOfLinks           = st.st_nlink;
1002                     info->StandardInformation.DeletePending           = FALSE; /* FIXME */
1003                 }
1004                 if (!(st.st_mode & S_IWUSR))
1005                     info->BasicInformation.FileAttributes |= FILE_ATTRIBUTE_READONLY;
1006                 RtlSecondsSince1970ToTime( st.st_mtime, &info->BasicInformation.CreationTime);
1007                 RtlSecondsSince1970ToTime( st.st_mtime, &info->BasicInformation.LastWriteTime);
1008                 RtlSecondsSince1970ToTime( st.st_ctime, &info->BasicInformation.ChangeTime);
1009                 RtlSecondsSince1970ToTime( st.st_atime, &info->BasicInformation.LastAccessTime);
1010                 info->InternalInformation.IndexNumber.QuadPart = st.st_ino;
1011                 info->EaInformation.EaSize = 0;
1012                 info->AccessInformation.AccessFlags = 0;  /* FIXME */
1013                 info->PositionInformation.CurrentByteOffset.QuadPart = lseek( fd, 0, SEEK_CUR );
1014                 info->ModeInformation.Mode = 0;  /* FIXME */
1015                 info->AlignmentInformation.AlignmentRequirement = 1;  /* FIXME */
1016                 info->NameInformation.FileNameLength = 0;
1017                 io->Information = sizeof(*info) - sizeof(WCHAR);
1018             }
1019         }
1020         break;
1021     default:
1022         FIXME("Unsupported class (%d)\n", class);
1023         io->u.Status = STATUS_NOT_IMPLEMENTED;
1024         break;
1025     }
1026     wine_server_release_fd( hFile, fd );
1027     if (io->u.Status == STATUS_SUCCESS && !io->Information) io->Information = info_sizes[class];
1028     return io->u.Status;
1029 }
1030
1031 /******************************************************************************
1032  *  NtSetInformationFile                [NTDLL.@]
1033  *  ZwSetInformationFile                [NTDLL.@]
1034  *
1035  * Set information about an open file handle.
1036  *
1037  * PARAMS
1038  *  handle  [I] Handle returned from ZwOpenFile() or ZwCreateFile()
1039  *  io      [O] Receives information about the operation on return
1040  *  ptr     [I] Source for file information
1041  *  len     [I] Size of FileInformation
1042  *  class   [I] Type of file information to set
1043  *
1044  * RETURNS
1045  *  Success: 0. io is updated.
1046  *  Failure: An NTSTATUS error code describing the error.
1047  */
1048 NTSTATUS WINAPI NtSetInformationFile(HANDLE handle, PIO_STATUS_BLOCK io,
1049                                      PVOID ptr, ULONG len, FILE_INFORMATION_CLASS class)
1050 {
1051     int fd;
1052
1053     TRACE("(%p,%p,%p,0x%08lx,0x%08x)\n", handle, io, ptr, len, class);
1054
1055     if ((io->u.Status = wine_server_handle_to_fd( handle, 0, &fd, NULL )))
1056         return io->u.Status;
1057
1058     io->u.Status = STATUS_SUCCESS;
1059     switch (class)
1060     {
1061     case FileBasicInformation:
1062         if (len >= sizeof(FILE_BASIC_INFORMATION))
1063         {
1064             struct stat st;
1065             const FILE_BASIC_INFORMATION *info = ptr;
1066
1067 #ifdef HAVE_FUTIMES
1068             if (info->LastAccessTime.QuadPart || info->LastWriteTime.QuadPart)
1069             {
1070                 ULONGLONG sec, nsec;
1071                 struct timeval tv[2];
1072
1073                 if (!info->LastAccessTime.QuadPart || !info->LastWriteTime.QuadPart)
1074                 {
1075
1076                     tv[0].tv_sec = tv[0].tv_usec = 0;
1077                     tv[1].tv_sec = tv[1].tv_usec = 0;
1078                     if (!fstat( fd, &st ))
1079                     {
1080                         tv[0].tv_sec = st.st_atime;
1081                         tv[1].tv_sec = st.st_mtime;
1082                     }
1083                 }
1084                 if (info->LastAccessTime.QuadPart)
1085                 {
1086                     sec = RtlLargeIntegerDivide( info->LastAccessTime.QuadPart, 10000000, &nsec );
1087                     tv[0].tv_sec = sec - SECS_1601_TO_1970;
1088                     tv[0].tv_usec = (UINT)nsec / 10;
1089                 }
1090                 if (info->LastWriteTime.QuadPart)
1091                 {
1092                     sec = RtlLargeIntegerDivide( info->LastWriteTime.QuadPart, 10000000, &nsec );
1093                     tv[1].tv_sec = sec - SECS_1601_TO_1970;
1094                     tv[1].tv_usec = (UINT)nsec / 10;
1095                 }
1096                 if (futimes( fd, tv ) == -1) io->u.Status = FILE_GetNtStatus();
1097             }
1098 #endif  /* HAVE_FUTIMES */
1099             if (io->u.Status == STATUS_SUCCESS && info->FileAttributes)
1100             {
1101                 if (fstat( fd, &st ) == -1) io->u.Status = FILE_GetNtStatus();
1102                 else
1103                 {
1104                     if (info->FileAttributes & FILE_ATTRIBUTE_READONLY)
1105                     {
1106                         if (S_ISDIR( st.st_mode))
1107                             WARN("FILE_ATTRIBUTE_READONLY ignored for directory.\n");
1108                         else
1109                             st.st_mode &= ~0222; /* clear write permission bits */
1110                     }
1111                     else
1112                     {
1113                         /* add write permission only where we already have read permission */
1114                         st.st_mode |= (0600 | ((st.st_mode & 044) >> 1)) & (~FILE_umask);
1115                     }
1116                     if (fchmod( fd, st.st_mode ) == -1) io->u.Status = FILE_GetNtStatus();
1117                 }
1118             }
1119         }
1120         else io->u.Status = STATUS_INVALID_PARAMETER_3;
1121         break;
1122
1123     case FilePositionInformation:
1124         if (len >= sizeof(FILE_POSITION_INFORMATION))
1125         {
1126             const FILE_POSITION_INFORMATION *info = ptr;
1127
1128             if (lseek( fd, info->CurrentByteOffset.QuadPart, SEEK_SET ) == (off_t)-1)
1129                 io->u.Status = FILE_GetNtStatus();
1130         }
1131         else io->u.Status = STATUS_INVALID_PARAMETER_3;
1132         break;
1133
1134     case FileEndOfFileInformation:
1135         if (len >= sizeof(FILE_END_OF_FILE_INFORMATION))
1136         {
1137             struct stat st;
1138             const FILE_END_OF_FILE_INFORMATION *info = ptr;
1139
1140             /* first try normal truncate */
1141             if (ftruncate( fd, (off_t)info->EndOfFile.QuadPart ) != -1) break;
1142
1143             /* now check for the need to extend the file */
1144             if (fstat( fd, &st ) != -1 && (off_t)info->EndOfFile.QuadPart > st.st_size)
1145             {
1146                 static const char zero;
1147
1148                 /* extend the file one byte beyond the requested size and then truncate it */
1149                 /* this should work around ftruncate implementations that can't extend files */
1150                 if (pwrite( fd, &zero, 1, (off_t)info->EndOfFile.QuadPart ) != -1 &&
1151                     ftruncate( fd, (off_t)info->EndOfFile.QuadPart ) != -1) break;
1152             }
1153             io->u.Status = FILE_GetNtStatus();
1154         }
1155         else io->u.Status = STATUS_INVALID_PARAMETER_3;
1156         break;
1157
1158     default:
1159         FIXME("Unsupported class (%d)\n", class);
1160         io->u.Status = STATUS_NOT_IMPLEMENTED;
1161         break;
1162     }
1163     wine_server_release_fd( handle, fd );
1164     io->Information = 0;
1165     return io->u.Status;
1166 }
1167
1168
1169 /******************************************************************************
1170  *              NtQueryFullAttributesFile   (NTDLL.@)
1171  */
1172 NTSTATUS WINAPI NtQueryFullAttributesFile( const OBJECT_ATTRIBUTES *attr,
1173                                            FILE_NETWORK_OPEN_INFORMATION *info )
1174 {
1175     ANSI_STRING unix_name;
1176     NTSTATUS status;
1177
1178     if (!(status = wine_nt_to_unix_file_name( attr->ObjectName, &unix_name, FILE_OPEN,
1179                                               !(attr->Attributes & OBJ_CASE_INSENSITIVE) )))
1180     {
1181         struct stat st;
1182
1183         if (stat( unix_name.Buffer, &st ) == -1)
1184             status = FILE_GetNtStatus();
1185         else if (!S_ISREG(st.st_mode) && !S_ISDIR(st.st_mode))
1186             status = STATUS_INVALID_INFO_CLASS;
1187         else
1188         {
1189             if (S_ISDIR(st.st_mode))
1190             {
1191                 info->FileAttributes          = FILE_ATTRIBUTE_DIRECTORY;
1192                 info->AllocationSize.QuadPart = 0;
1193                 info->EndOfFile.QuadPart      = 0;
1194             }
1195             else
1196             {
1197                 info->FileAttributes          = FILE_ATTRIBUTE_ARCHIVE;
1198                 info->AllocationSize.QuadPart = (ULONGLONG)st.st_blocks * 512;
1199                 info->EndOfFile.QuadPart      = st.st_size;
1200             }
1201             if (!(st.st_mode & S_IWUSR)) info->FileAttributes |= FILE_ATTRIBUTE_READONLY;
1202             RtlSecondsSince1970ToTime( st.st_mtime, &info->CreationTime );
1203             RtlSecondsSince1970ToTime( st.st_mtime, &info->LastWriteTime );
1204             RtlSecondsSince1970ToTime( st.st_ctime, &info->ChangeTime );
1205             RtlSecondsSince1970ToTime( st.st_atime, &info->LastAccessTime );
1206             if (DIR_is_hidden_file( attr->ObjectName ))
1207                 info->FileAttributes |= FILE_ATTRIBUTE_HIDDEN;
1208         }
1209         RtlFreeAnsiString( &unix_name );
1210     }
1211     else WARN("%s not found (%lx)\n", debugstr_us(attr->ObjectName), status );
1212     return status;
1213 }
1214
1215
1216 /******************************************************************************
1217  *              NtQueryAttributesFile   (NTDLL.@)
1218  *              ZwQueryAttributesFile   (NTDLL.@)
1219  */
1220 NTSTATUS WINAPI NtQueryAttributesFile( const OBJECT_ATTRIBUTES *attr, FILE_BASIC_INFORMATION *info )
1221 {
1222     FILE_NETWORK_OPEN_INFORMATION full_info;
1223     NTSTATUS status;
1224
1225     if (!(status = NtQueryFullAttributesFile( attr, &full_info )))
1226     {
1227         info->CreationTime.QuadPart   = full_info.CreationTime.QuadPart;
1228         info->LastAccessTime.QuadPart = full_info.LastAccessTime.QuadPart;
1229         info->LastWriteTime.QuadPart  = full_info.LastWriteTime.QuadPart;
1230         info->ChangeTime.QuadPart     = full_info.ChangeTime.QuadPart;
1231         info->FileAttributes          = full_info.FileAttributes;
1232     }
1233     return status;
1234 }
1235
1236
1237 /******************************************************************************
1238  *  NtQueryVolumeInformationFile                [NTDLL.@]
1239  *  ZwQueryVolumeInformationFile                [NTDLL.@]
1240  *
1241  * Get volume information for an open file handle.
1242  *
1243  * PARAMS
1244  *  handle      [I] Handle returned from ZwOpenFile() or ZwCreateFile()
1245  *  io          [O] Receives information about the operation on return
1246  *  buffer      [O] Destination for volume information
1247  *  length      [I] Size of FsInformation
1248  *  info_class  [I] Type of volume information to set
1249  *
1250  * RETURNS
1251  *  Success: 0. io and buffer are updated.
1252  *  Failure: An NTSTATUS error code describing the error.
1253  */
1254 NTSTATUS WINAPI NtQueryVolumeInformationFile( HANDLE handle, PIO_STATUS_BLOCK io,
1255                                               PVOID buffer, ULONG length,
1256                                               FS_INFORMATION_CLASS info_class )
1257 {
1258     int fd;
1259     struct stat st;
1260
1261     if ((io->u.Status = wine_server_handle_to_fd( handle, 0, &fd, NULL )) != STATUS_SUCCESS)
1262         return io->u.Status;
1263
1264     io->u.Status = STATUS_NOT_IMPLEMENTED;
1265     io->Information = 0;
1266
1267     switch( info_class )
1268     {
1269     case FileFsVolumeInformation:
1270         FIXME( "%p: volume info not supported\n", handle );
1271         break;
1272     case FileFsLabelInformation:
1273         FIXME( "%p: label info not supported\n", handle );
1274         break;
1275     case FileFsSizeInformation:
1276         if (length < sizeof(FILE_FS_SIZE_INFORMATION))
1277             io->u.Status = STATUS_BUFFER_TOO_SMALL;
1278         else
1279         {
1280             FILE_FS_SIZE_INFORMATION *info = buffer;
1281             struct statvfs stvfs;
1282
1283             if (fstat( fd, &st ) < 0)
1284             {
1285                 io->u.Status = FILE_GetNtStatus();
1286                 break;
1287             }
1288             if (!S_ISREG(st.st_mode) && !S_ISDIR(st.st_mode))
1289             {
1290                 io->u.Status = STATUS_INVALID_DEVICE_REQUEST;
1291                 break;
1292             }
1293             if (fstatvfs( fd, &stvfs ) < 0) io->u.Status = FILE_GetNtStatus();
1294             else
1295             {
1296                 info->TotalAllocationUnits.QuadPart = stvfs.f_blocks;
1297                 info->AvailableAllocationUnits.QuadPart = stvfs.f_bavail;
1298                 info->SectorsPerAllocationUnit = 1;
1299                 info->BytesPerSector = stvfs.f_frsize;
1300                 io->Information = sizeof(*info);
1301                 io->u.Status = STATUS_SUCCESS;
1302             }
1303         }
1304         break;
1305     case FileFsDeviceInformation:
1306         if (length < sizeof(FILE_FS_DEVICE_INFORMATION))
1307             io->u.Status = STATUS_BUFFER_TOO_SMALL;
1308         else
1309         {
1310             FILE_FS_DEVICE_INFORMATION *info = buffer;
1311
1312             info->Characteristics = 0;
1313             if (fstat( fd, &st ) < 0)
1314             {
1315                 io->u.Status = FILE_GetNtStatus();
1316                 break;
1317             }
1318             if (S_ISCHR( st.st_mode ))
1319             {
1320                 info->DeviceType = FILE_DEVICE_UNKNOWN;
1321 #ifdef linux
1322                 switch(major(st.st_rdev))
1323                 {
1324                 case MEM_MAJOR:
1325                     info->DeviceType = FILE_DEVICE_NULL;
1326                     break;
1327                 case TTY_MAJOR:
1328                     info->DeviceType = FILE_DEVICE_SERIAL_PORT;
1329                     break;
1330                 case LP_MAJOR:
1331                     info->DeviceType = FILE_DEVICE_PARALLEL_PORT;
1332                     break;
1333                 }
1334 #endif
1335             }
1336             else if (S_ISBLK( st.st_mode ))
1337             {
1338                 info->DeviceType = FILE_DEVICE_DISK;
1339             }
1340             else if (S_ISFIFO( st.st_mode ) || S_ISSOCK( st.st_mode ))
1341             {
1342                 info->DeviceType = FILE_DEVICE_NAMED_PIPE;
1343             }
1344             else  /* regular file or directory */
1345             {
1346 #if defined(linux) && defined(HAVE_FSTATFS)
1347                 struct statfs stfs;
1348
1349                 /* check for floppy disk */
1350                 if (major(st.st_dev) == FLOPPY_MAJOR)
1351                     info->Characteristics |= FILE_REMOVABLE_MEDIA;
1352
1353                 if (fstatfs( fd, &stfs ) < 0) stfs.f_type = 0;
1354                 switch (stfs.f_type)
1355                 {
1356                 case 0x9660:      /* iso9660 */
1357                 case 0x15013346:  /* udf */
1358                     info->DeviceType = FILE_DEVICE_CD_ROM_FILE_SYSTEM;
1359                     info->Characteristics |= FILE_REMOVABLE_MEDIA|FILE_READ_ONLY_DEVICE;
1360                     break;
1361                 case 0x6969:  /* nfs */
1362                 case 0x517B:  /* smbfs */
1363                 case 0x564c:  /* ncpfs */
1364                     info->DeviceType = FILE_DEVICE_NETWORK_FILE_SYSTEM;
1365                     info->Characteristics |= FILE_REMOTE_DEVICE;
1366                     break;
1367                 case 0x01021994:  /* tmpfs */
1368                 case 0x28cd3d45:  /* cramfs */
1369                 case 0x1373:      /* devfs */
1370                 case 0x9fa0:      /* procfs */
1371                     info->DeviceType = FILE_DEVICE_VIRTUAL_DISK;
1372                     break;
1373                 default:
1374                     info->DeviceType = FILE_DEVICE_DISK_FILE_SYSTEM;
1375                     break;
1376                 }
1377 #elif defined (__APPLE__)
1378                 #include <IOKit/IOKitLib.h>
1379                 #include <CoreFoundation/CFNumber.h> /* for kCFBooleanTrue, kCFBooleanFalse */
1380                 #include <paths.h>
1381                 struct statfs stfs;
1382
1383                 info->DeviceType = FILE_DEVICE_DISK_FILE_SYSTEM;
1384
1385                 if (fstatfs( fd, &stfs ) < 0) break;
1386
1387                 /* stfs.f_type is reserved (always set to 0) so use IOKit */
1388                 kern_return_t kernResult = KERN_FAILURE;
1389                 mach_port_t masterPort;
1390
1391                 char bsdName[6]; /* disk#\0 */
1392
1393                 strncpy(bsdName, stfs.f_mntfromname+strlen(_PATH_DEV) , 5);
1394                 bsdName[5] = 0;
1395
1396                 kernResult = IOMasterPort(MACH_PORT_NULL, &masterPort);
1397
1398                 if (kernResult == KERN_SUCCESS)
1399                 {
1400                     CFMutableDictionaryRef matching = IOBSDNameMatching(masterPort, 0, bsdName);
1401
1402                     if (matching)
1403                     {
1404                         CFMutableDictionaryRef properties;
1405                         io_service_t devService = IOServiceGetMatchingService(masterPort, matching);
1406
1407                         if (IORegistryEntryCreateCFProperties(devService,
1408                                                                 &properties,
1409                                                                 kCFAllocatorDefault, 0) != KERN_SUCCESS)
1410                                                                     break;
1411                         if ( CFEqual(
1412                                         CFDictionaryGetValue(properties, CFSTR("Removable")),
1413                                         kCFBooleanTrue)
1414                             ) info->Characteristics |= FILE_REMOVABLE_MEDIA;
1415
1416                         if ( CFEqual(
1417                                         CFDictionaryGetValue(properties, CFSTR("Writable")),
1418                                         kCFBooleanFalse)
1419                             ) info->Characteristics |= FILE_READ_ONLY_DEVICE;
1420
1421                         /*
1422                             NB : mounted disk image (.img/.dmg) don't provide specific type
1423                         */
1424                         CFStringRef type;
1425                         if ( (type = CFDictionaryGetValue(properties, CFSTR("Type"))) )
1426                         {
1427                             if ( CFStringCompare(type, CFSTR("CD-ROM"), 0) == kCFCompareEqualTo
1428                                 || CFStringCompare(type, CFSTR("DVD-ROM"), 0) == kCFCompareEqualTo
1429                             )
1430                             {
1431                                 info->DeviceType = FILE_DEVICE_CD_ROM_FILE_SYSTEM;
1432                             }
1433                         }
1434
1435                         if (properties)
1436                             CFRelease(properties);
1437                     }
1438                 }
1439 #else
1440                 static int warned;
1441                 if (!warned++) FIXME( "device info not properly supported on this platform\n" );
1442                 info->DeviceType = FILE_DEVICE_DISK_FILE_SYSTEM;
1443 #endif
1444                 info->Characteristics |= FILE_DEVICE_IS_MOUNTED;
1445             }
1446             io->Information = sizeof(*info);
1447             io->u.Status = STATUS_SUCCESS;
1448         }
1449         break;
1450     case FileFsAttributeInformation:
1451         FIXME( "%p: attribute info not supported\n", handle );
1452         break;
1453     case FileFsControlInformation:
1454         FIXME( "%p: control info not supported\n", handle );
1455         break;
1456     case FileFsFullSizeInformation:
1457         FIXME( "%p: full size info not supported\n", handle );
1458         break;
1459     case FileFsObjectIdInformation:
1460         FIXME( "%p: object id info not supported\n", handle );
1461         break;
1462     case FileFsMaximumInformation:
1463         FIXME( "%p: maximum info not supported\n", handle );
1464         break;
1465     default:
1466         io->u.Status = STATUS_INVALID_PARAMETER;
1467         break;
1468     }
1469     wine_server_release_fd( handle, fd );
1470     return io->u.Status;
1471 }
1472
1473
1474 /******************************************************************
1475  *              NtFlushBuffersFile  (NTDLL.@)
1476  *
1477  * Flush any buffered data on an open file handle.
1478  *
1479  * PARAMS
1480  *  FileHandle         [I] Handle returned from ZwOpenFile() or ZwCreateFile()
1481  *  IoStatusBlock      [O] Receives information about the operation on return
1482  *
1483  * RETURNS
1484  *  Success: 0. IoStatusBlock is updated.
1485  *  Failure: An NTSTATUS error code describing the error.
1486  */
1487 NTSTATUS WINAPI NtFlushBuffersFile( HANDLE hFile, IO_STATUS_BLOCK* IoStatusBlock )
1488 {
1489     NTSTATUS ret;
1490     HANDLE hEvent = NULL;
1491
1492     SERVER_START_REQ( flush_file )
1493     {
1494         req->handle = hFile;
1495         ret = wine_server_call( req );
1496         hEvent = reply->event;
1497     }
1498     SERVER_END_REQ;
1499     if (!ret && hEvent)
1500     {
1501         ret = NtWaitForSingleObject( hEvent, FALSE, NULL );
1502         NtClose( hEvent );
1503     }
1504     return ret;
1505 }
1506
1507 /******************************************************************
1508  *              NtLockFile       (NTDLL.@)
1509  *
1510  *
1511  */
1512 NTSTATUS WINAPI NtLockFile( HANDLE hFile, HANDLE lock_granted_event,
1513                             PIO_APC_ROUTINE apc, void* apc_user,
1514                             PIO_STATUS_BLOCK io_status, PLARGE_INTEGER offset,
1515                             PLARGE_INTEGER count, ULONG* key, BOOLEAN dont_wait,
1516                             BOOLEAN exclusive )
1517 {
1518     NTSTATUS    ret;
1519     HANDLE      handle;
1520     BOOLEAN     async;
1521
1522     if (apc || io_status || key)
1523     {
1524         FIXME("Unimplemented yet parameter\n");
1525         return STATUS_NOT_IMPLEMENTED;
1526     }
1527
1528     for (;;)
1529     {
1530         SERVER_START_REQ( lock_file )
1531         {
1532             req->handle      = hFile;
1533             req->offset_low  = offset->u.LowPart;
1534             req->offset_high = offset->u.HighPart;
1535             req->count_low   = count->u.LowPart;
1536             req->count_high  = count->u.HighPart;
1537             req->shared      = !exclusive;
1538             req->wait        = !dont_wait;
1539             ret = wine_server_call( req );
1540             handle = reply->handle;
1541             async  = reply->overlapped;
1542         }
1543         SERVER_END_REQ;
1544         if (ret != STATUS_PENDING)
1545         {
1546             if (!ret && lock_granted_event) NtSetEvent(lock_granted_event, NULL);
1547             return ret;
1548         }
1549
1550         if (async)
1551         {
1552             FIXME( "Async I/O lock wait not implemented, might deadlock\n" );
1553             if (handle) NtClose( handle );
1554             return STATUS_PENDING;
1555         }
1556         if (handle)
1557         {
1558             NtWaitForSingleObject( handle, FALSE, NULL );
1559             NtClose( handle );
1560         }
1561         else
1562         {
1563             LARGE_INTEGER time;
1564
1565             /* Unix lock conflict, sleep a bit and retry */
1566             time.QuadPart = 100 * (ULONGLONG)10000;
1567             time.QuadPart = -time.QuadPart;
1568             NtDelayExecution( FALSE, &time );
1569         }
1570     }
1571 }
1572
1573
1574 /******************************************************************
1575  *              NtUnlockFile    (NTDLL.@)
1576  *
1577  *
1578  */
1579 NTSTATUS WINAPI NtUnlockFile( HANDLE hFile, PIO_STATUS_BLOCK io_status,
1580                               PLARGE_INTEGER offset, PLARGE_INTEGER count,
1581                               PULONG key )
1582 {
1583     NTSTATUS status;
1584
1585     TRACE( "%p %lx%08lx %lx%08lx\n",
1586            hFile, offset->u.HighPart, offset->u.LowPart, count->u.HighPart, count->u.LowPart );
1587
1588     if (io_status || key)
1589     {
1590         FIXME("Unimplemented yet parameter\n");
1591         return STATUS_NOT_IMPLEMENTED;
1592     }
1593
1594     SERVER_START_REQ( unlock_file )
1595     {
1596         req->handle      = hFile;
1597         req->offset_low  = offset->u.LowPart;
1598         req->offset_high = offset->u.HighPart;
1599         req->count_low   = count->u.LowPart;
1600         req->count_high  = count->u.HighPart;
1601         status = wine_server_call( req );
1602     }
1603     SERVER_END_REQ;
1604     return status;
1605 }
1606
1607 /******************************************************************
1608  *              NtCreateNamedPipeFile    (NTDLL.@)
1609  *
1610  *
1611  */
1612 NTSTATUS WINAPI NtCreateNamedPipeFile( PHANDLE FileHandle, ULONG DesiredAccess,
1613      POBJECT_ATTRIBUTES ObjectAttributes, PIO_STATUS_BLOCK IoStatusBlock,
1614      ULONG ShareAccess, ULONG CreateDisposition, ULONG CreateOptions,
1615      ULONG NamedPipeType, ULONG ReadMode, ULONG CompletionMode,
1616      ULONG MaximumInstances, ULONG InboundQuota, ULONG OutboundQuota,
1617      PLARGE_INTEGER DefaultTimeout)
1618 {
1619     FIXME("(%p %lx %p %p %lx %ld %lx %ld %ld %ld %ld %ld %ld %p): stub\n",
1620           FileHandle, DesiredAccess, ObjectAttributes, IoStatusBlock,
1621           ShareAccess, CreateDisposition, CreateOptions, NamedPipeType,
1622           ReadMode, CompletionMode, MaximumInstances, InboundQuota,
1623           OutboundQuota, DefaultTimeout);
1624     return STATUS_NOT_IMPLEMENTED;
1625 }
1626
1627 /******************************************************************
1628  *              NtDeleteFile    (NTDLL.@)
1629  *
1630  *
1631  */
1632 NTSTATUS WINAPI NtDeleteFile( POBJECT_ATTRIBUTES ObjectAttributes )
1633 {
1634     FIXME("%p\n", ObjectAttributes);
1635     return STATUS_NOT_IMPLEMENTED;
1636 }
1637
1638 /******************************************************************
1639  *              NtCancelIoFile    (NTDLL.@)
1640  *
1641  *
1642  */
1643 NTSTATUS WINAPI NtCancelIoFile( HANDLE FileHandle,
1644     PIO_STATUS_BLOCK IoStatusBlock)
1645 {
1646     FIXME("%p %p\n", FileHandle, IoStatusBlock );
1647     return STATUS_NOT_IMPLEMENTED;
1648 }