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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, 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_SYS_IOCTL_H
  46 #include <sys/ioctl.h>
  47 #endif
  48 #ifdef HAVE_POLL_H
  49 #include <poll.h>
  50 #endif
  51 #ifdef HAVE_SYS_POLL_H
  52 #include <sys/poll.h>
  53 #endif
  54 #ifdef HAVE_SYS_SOCKET_H
  55 #include <sys/socket.h>
  56 #endif
  57 #ifdef HAVE_UTIME_H
  58 # include <utime.h>
  59 #endif
  60 #ifdef HAVE_SYS_VFS_H
  61 # include <sys/vfs.h>
  62 #endif
  63 #ifdef HAVE_SYS_MOUNT_H
  64 # include <sys/mount.h>
  65 #endif
  66 #ifdef HAVE_SYS_STATFS_H
  67 # include <sys/statfs.h>
  68 #endif
  69
  70 #define NONAMELESSUNION
  71 #define NONAMELESSSTRUCT
  72 #include "ntstatus.h"
  73 #define WIN32_NO_STATUS
  74 #include "wine/unicode.h"
  75 #include "wine/debug.h"
  76 #include "thread.h"
  77 #include "wine/server.h"
  78 #include "ntdll_misc.h"
  79
  80 #include "winternl.h"
  81 #include "winioctl.h"
  82
  83 WINE_DEFAULT_DEBUG_CHANNEL(ntdll);
  84
  85 mode_t FILE_umask = 0;
  86
  87 #define SECSPERDAY         86400
  88 #define SECS_1601_TO_1970  ((369 * 365 + 89) * (ULONGLONG)SECSPERDAY)
  89
  90 /**************************************************************************
  91  *                 NtOpenFile                           [NTDLL.@]
  92  *                 ZwOpenFile                           [NTDLL.@]
  93  *
  94  * Open a file.
  95  *
  96  * PARAMS
  97  *  handle    [O] Variable that receives the file handle on return
  98  *  access    [I] Access desired by the caller to the file
  99  *  attr      [I] Structure describing the file to be opened
 100  *  io        [O] Receives details about the result of the operation
 101  *  sharing   [I] Type of shared access the caller requires
 102  *  options   [I] Options for the file open
 103  *
 104  * RETURNS
 105  *  Success: 0. FileHandle and IoStatusBlock are updated.
 106  *  Failure: An NTSTATUS error code describing the error.
 107  */
 108 NTSTATUS WINAPI NtOpenFile( PHANDLE handle, ACCESS_MASK access,
 109                             POBJECT_ATTRIBUTES attr, PIO_STATUS_BLOCK io,
 110                             ULONG sharing, ULONG options )
 111 {
 112     return NtCreateFile( handle, access, attr, io, NULL, 0,
 113                          sharing, FILE_OPEN, options, NULL, 0 );
 114 }
 115
 116 /**************************************************************************
 117  *              NtCreateFile                            [NTDLL.@]
 118  *              ZwCreateFile                            [NTDLL.@]
 119  *
 120  * Either create a new file or directory, or open an existing file, device,
 121  * directory or volume.
 122  *
 123  * PARAMS
 124  *      handle       [O] Points to a variable which receives the file handle on return
 125  *      access       [I] Desired access to the file
 126  *      attr         [I] Structure describing the file
 127  *      io           [O] Receives information about the operation on return
 128  *      alloc_size   [I] Initial size of the file in bytes
 129  *      attributes   [I] Attributes to create the file with
 130  *      sharing      [I] Type of shared access the caller would like to the file
 131  *      disposition  [I] Specifies what to do, depending on whether the file already exists
 132  *      options      [I] Options for creating a new file
 133  *      ea_buffer    [I] Pointer to an extended attributes buffer
 134  *      ea_length    [I] Length of ea_buffer
 135  *
 136  * RETURNS
 137  *  Success: 0. handle and io are updated.
 138  *  Failure: An NTSTATUS error code describing the error.
 139  */
 140 NTSTATUS WINAPI NtCreateFile( PHANDLE handle, ACCESS_MASK access, POBJECT_ATTRIBUTES attr,
 141                               PIO_STATUS_BLOCK io, PLARGE_INTEGER alloc_size,
 142                               ULONG attributes, ULONG sharing, ULONG disposition,
 143                               ULONG options, PVOID ea_buffer, ULONG ea_length )
 144 {
 145     static const WCHAR pipeW[] = {'\\','?','?','\\','p','i','p','e','\\'};
 146     static const WCHAR mailslotW[] = {'\\','?','?','\\','M','A','I','L','S','L','O','T','\\'};
 147     ANSI_STRING unix_name;
 148     int created = FALSE;
 149
 150     TRACE("handle=%p access=%08x name=%s objattr=%08x root=%p sec=%p io=%p alloc_size=%p\n"
 151           "attr=%08x sharing=%08x disp=%d options=%08x ea=%p.0x%08x\n",
 152           handle, access, debugstr_us(attr->ObjectName), attr->Attributes,
 153           attr->RootDirectory, attr->SecurityDescriptor, io, alloc_size,
 154           attributes, sharing, disposition, options, ea_buffer, ea_length );
 155
 156     if (!attr || !attr->ObjectName) return STATUS_INVALID_PARAMETER;
 157
 158     if (alloc_size) FIXME( "alloc_size not supported\n" );
 159
 160     /* check for named pipe */
 161
 162     if (attr->ObjectName->Length > sizeof(pipeW) &&
 163         !memicmpW( attr->ObjectName->Buffer, pipeW, sizeof(pipeW)/sizeof(WCHAR) ))
 164     {
 165         SERVER_START_REQ( open_named_pipe )
 166         {
 167             req->access = access;
 168             req->attributes = attr->Attributes;
 169             req->rootdir = attr->RootDirectory;
 170             req->flags = options;
 171             wine_server_add_data( req, attr->ObjectName->Buffer,
 172                                   attr->ObjectName->Length );
 173             io->u.Status = wine_server_call( req );
 174             *handle = reply->handle;
 175         }
 176         SERVER_END_REQ;
 177         return io->u.Status;
 178     }
 179
 180     /* check for mailslot */
 181
 182     if (attr->ObjectName->Length > sizeof(mailslotW) &&
 183         !memicmpW( attr->ObjectName->Buffer, mailslotW, sizeof(mailslotW)/sizeof(WCHAR) ))
 184     {
 185         SERVER_START_REQ( open_mailslot )
 186         {
 187             req->access = access & GENERIC_WRITE;
 188             req->attributes = attr->Attributes;
 189             req->rootdir = attr->RootDirectory;
 190             req->sharing = sharing;
 191             wine_server_add_data( req, attr->ObjectName->Buffer,
 192                                   attr->ObjectName->Length );
 193             io->u.Status = wine_server_call( req );
 194             *handle = reply->handle;
 195         }
 196         SERVER_END_REQ;
 197         return io->u.Status;
 198     }
 199
 200     if (attr->RootDirectory)
 201     {
 202         FIXME( "RootDirectory %p not supported\n", attr->RootDirectory );
 203         return STATUS_OBJECT_NAME_NOT_FOUND;
 204     }
 205
 206     io->u.Status = wine_nt_to_unix_file_name( attr->ObjectName, &unix_name, disposition,
 207                                               !(attr->Attributes & OBJ_CASE_INSENSITIVE) );
 208
 209     if (io->u.Status == STATUS_BAD_DEVICE_TYPE)
 210     {
 211         SERVER_START_REQ( open_file_object )
 212         {
 213             req->access     = access;
 214             req->attributes = attr->Attributes;
 215             req->rootdir    = attr->RootDirectory;
 216             req->sharing    = sharing;
 217             wine_server_add_data( req, attr->ObjectName->Buffer, attr->ObjectName->Length );
 218             io->u.Status = wine_server_call( req );
 219             *handle = reply->handle;
 220         }
 221         SERVER_END_REQ;
 222         return io->u.Status;
 223     }
 224
 225     if (io->u.Status == STATUS_NO_SUCH_FILE &&
 226         disposition != FILE_OPEN && disposition != FILE_OVERWRITE)
 227     {
 228         created = TRUE;
 229         io->u.Status = STATUS_SUCCESS;
 230     }
 231
 232     if (io->u.Status == STATUS_SUCCESS)
 233     {
 234         SERVER_START_REQ( create_file )
 235         {
 236             req->access     = access;
 237             req->attributes = attr->Attributes;
 238             req->sharing    = sharing;
 239             req->create     = disposition;
 240             req->options    = options;
 241             req->attrs      = attributes;
 242             wine_server_add_data( req, unix_name.Buffer, unix_name.Length );
 243             io->u.Status = wine_server_call( req );
 244             *handle = reply->handle;
 245         }
 246         SERVER_END_REQ;
 247         RtlFreeAnsiString( &unix_name );
 248     }
 249     else WARN("%s not found (%x)\n", debugstr_us(attr->ObjectName), io->u.Status );
 250
 251     if (io->u.Status == STATUS_SUCCESS)
 252     {
 253         if (created) io->Information = FILE_CREATED;
 254         else switch(disposition)
 255         {
 256         case FILE_SUPERSEDE:
 257             io->Information = FILE_SUPERSEDED;
 258             break;
 259         case FILE_CREATE:
 260             io->Information = FILE_CREATED;
 261             break;
 262         case FILE_OPEN:
 263         case FILE_OPEN_IF:
 264             io->Information = FILE_OPENED;
 265             break;
 266         case FILE_OVERWRITE:
 267         case FILE_OVERWRITE_IF:
 268             io->Information = FILE_OVERWRITTEN;
 269             break;
 270         }
 271     }
 272
 273     return io->u.Status;
 274 }
 275
 276 /***********************************************************************
 277  *                  Asynchronous file I/O                              *
 278  */
 279 static void WINAPI FILE_AsyncReadService(void*, PIO_STATUS_BLOCK, ULONG);
 280 static void WINAPI FILE_AsyncWriteService(void*, PIO_STATUS_BLOCK, ULONG);
 281
 282 typedef struct async_fileio
 283 {
 284     HANDLE              handle;
 285     PIO_APC_ROUTINE     apc;
 286     void*               apc_user;
 287     char*               buffer;
 288     unsigned int        count;
 289     off_t               offset;
 290     int                 queue_apc_on_error;
 291     BOOL                avail_mode;
 292     HANDLE              event;
 293 } async_fileio;
 294
 295 static void fileio_terminate(async_fileio *fileio, IO_STATUS_BLOCK* iosb)
 296 {
 297     TRACE("data: %p\n", fileio);
 298
 299     if (fileio->event) NtSetEvent( fileio->event, NULL );
 300
 301     if (fileio->apc &&
 302         (iosb->u.Status == STATUS_SUCCESS || fileio->queue_apc_on_error))
 303         fileio->apc( fileio->apc_user, iosb, iosb->Information );
 304
 305     RtlFreeHeap( GetProcessHeap(), 0, fileio );
 306 }
 307
 308
 309 static ULONG fileio_queue_async(async_fileio* fileio, IO_STATUS_BLOCK* iosb,
 310                                 BOOL do_read)
 311 {
 312     PIO_APC_ROUTINE     apc = do_read ? FILE_AsyncReadService : FILE_AsyncWriteService;
 313     NTSTATUS            status;
 314
 315     SERVER_START_REQ( register_async )
 316     {
 317         req->handle = fileio->handle;
 318         req->io_apc = apc;
 319         req->io_sb = iosb;
 320         req->io_user = fileio;
 321         req->type = do_read ? ASYNC_TYPE_READ : ASYNC_TYPE_WRITE;
 322         req->count = (fileio->count < iosb->Information) ?
 323             0 : fileio->count - iosb->Information;
 324         status = wine_server_call( req );
 325     }
 326     SERVER_END_REQ;
 327
 328     if ( status ) iosb->u.Status = status;
 329     if ( iosb->u.Status != STATUS_PENDING )
 330     {
 331         (apc)( fileio, iosb, iosb->u.Status );
 332         return iosb->u.Status;
 333     }
 334     NtCurrentTeb()->num_async_io++;
 335     return STATUS_SUCCESS;
 336 }
 337
 338 /***********************************************************************
 339  *           FILE_GetNtStatus(void)
 340  *
 341  * Retrieve the Nt Status code from errno.
 342  * Try to be consistent with FILE_SetDosError().
 343  */
 344 NTSTATUS FILE_GetNtStatus(void)
 345 {
 346     int err = errno;
 347
 348     TRACE( "errno = %d\n", errno );
 349     switch (err)
 350     {
 351     case EAGAIN:    return STATUS_SHARING_VIOLATION;
 352     case EBADF:     return STATUS_INVALID_HANDLE;
 353     case EBUSY:     return STATUS_DEVICE_BUSY;
 354     case ENOSPC:    return STATUS_DISK_FULL;
 355     case EPERM:
 356     case EROFS:
 357     case EACCES:    return STATUS_ACCESS_DENIED;
 358     case ENOTDIR:   return STATUS_OBJECT_PATH_NOT_FOUND;
 359     case ENOENT:    return STATUS_OBJECT_NAME_NOT_FOUND;
 360     case EISDIR:    return STATUS_FILE_IS_A_DIRECTORY;
 361     case EMFILE:
 362     case ENFILE:    return STATUS_TOO_MANY_OPENED_FILES;
 363     case EINVAL:    return STATUS_INVALID_PARAMETER;
 364     case ENOTEMPTY: return STATUS_DIRECTORY_NOT_EMPTY;
 365     case EPIPE:     return STATUS_PIPE_BROKEN;
 366     case EIO:       return STATUS_DEVICE_NOT_READY;
 367 #ifdef ENOMEDIUM
 368     case ENOMEDIUM: return STATUS_NO_MEDIA_IN_DEVICE;
 369 #endif
 370     case ENXIO:     return STATUS_NO_SUCH_DEVICE;
 371     case ENOTTY:
 372     case EOPNOTSUPP:return STATUS_NOT_SUPPORTED;
 373     case ECONNRESET:return STATUS_PIPE_DISCONNECTED;
 374     case ENOEXEC:   /* ?? */
 375     case ESPIPE:    /* ?? */
 376     case EEXIST:    /* ?? */
 377     default:
 378         FIXME( "Converting errno %d to STATUS_UNSUCCESSFUL\n", err );
 379         return STATUS_UNSUCCESSFUL;
 380     }
 381 }
 382
 383 /***********************************************************************
 384  *             FILE_AsyncReadService      (INTERNAL)
 385  */
 386 static void WINAPI FILE_AsyncReadService(void *user, PIO_STATUS_BLOCK iosb, ULONG status)
 387 {
 388     async_fileio *fileio = (async_fileio*)user;
 389     int fd, needs_close, result;
 390     int already = iosb->Information;
 391
 392     TRACE("%p %p 0x%x\n", iosb, fileio->buffer, status);
 393
 394     switch (status)
 395     {
 396     case STATUS_ALERTED: /* got some new data */
 397         if (iosb->u.Status != STATUS_PENDING) FIXME("unexpected status %08x\n", iosb->u.Status);
 398         /* check to see if the data is ready (non-blocking) */
 399         if ((iosb->u.Status = server_get_unix_fd( fileio->handle, FILE_READ_DATA, &fd, &needs_close, NULL )))
 400         {
 401             fileio_terminate(fileio, iosb);
 402             break;
 403         }
 404         if ( fileio->avail_mode )
 405             result = read(fd, &fileio->buffer[already], fileio->count - already);
 406         else
 407         {
 408             result = pread(fd, &fileio->buffer[already],
 409                            fileio->count - already,
 410                            fileio->offset + already);
 411             if ((result < 0) && (errno == ESPIPE))
 412                 result = read(fd, &fileio->buffer[already], fileio->count - already);
 413         }
 414         if (needs_close) close( fd );
 415
 416         if (result < 0)
 417         {
 418             if (errno == EAGAIN || errno == EINTR)
 419             {
 420                 TRACE("Deferred read %d\n", errno);
 421                 iosb->u.Status = STATUS_PENDING;
 422             }
 423             else /* check to see if the transfer is complete */
 424                 iosb->u.Status = FILE_GetNtStatus();
 425         }
 426         else if (result == 0)
 427         {
 428             iosb->u.Status = iosb->Information ? STATUS_SUCCESS : STATUS_END_OF_FILE;
 429         }
 430         else
 431         {
 432             iosb->Information += result;
 433             if (iosb->Information >= fileio->count || fileio->avail_mode)
 434                 iosb->u.Status = STATUS_SUCCESS;
 435             else
 436             {
 437                 /* if we only have to read the available data, and none is available,
 438                  * simply cancel the request. If data was available, it has been read
 439                  * while in by previous call (NtDelayExecution)
 440                  */
 441                 iosb->u.Status = (fileio->avail_mode) ? STATUS_SUCCESS : STATUS_PENDING;
 442             }
 443
 444             TRACE("read %d more bytes %ld/%d so far (%s)\n",
 445                   result, iosb->Information, fileio->count,
 446                   (iosb->u.Status == STATUS_SUCCESS) ? "success" : "pending");
 447         }
 448         /* queue another async operation ? */
 449         if (iosb->u.Status == STATUS_PENDING)
 450             fileio_queue_async(fileio, iosb, TRUE);
 451         else
 452             fileio_terminate(fileio, iosb);
 453         break;
 454     default:
 455         iosb->u.Status = status;
 456         fileio_terminate(fileio, iosb);
 457         break;
 458     }
 459 }
 460
 461
 462 /******************************************************************************
 463  *  NtReadFile                                  [NTDLL.@]
 464  *  ZwReadFile                                  [NTDLL.@]
 465  *
 466  * Read from an open file handle.
 467  *
 468  * PARAMS
 469  *  FileHandle    [I] Handle returned from ZwOpenFile() or ZwCreateFile()
 470  *  Event         [I] Event to signal upon completion (or NULL)
 471  *  ApcRoutine    [I] Callback to call upon completion (or NULL)
 472  *  ApcContext    [I] Context for ApcRoutine (or NULL)
 473  *  IoStatusBlock [O] Receives information about the operation on return
 474  *  Buffer        [O] Destination for the data read
 475  *  Length        [I] Size of Buffer
 476  *  ByteOffset    [O] Destination for the new file pointer position (or NULL)
 477  *  Key           [O] Function unknown (may be NULL)
 478  *
 479  * RETURNS
 480  *  Success: 0. IoStatusBlock is updated, and the Information member contains
 481  *           The number of bytes read.
 482  *  Failure: An NTSTATUS error code describing the error.
 483  */
 484 NTSTATUS WINAPI NtReadFile(HANDLE hFile, HANDLE hEvent,
 485                            PIO_APC_ROUTINE apc, void* apc_user,
 486                            PIO_STATUS_BLOCK io_status, void* buffer, ULONG length,
 487                            PLARGE_INTEGER offset, PULONG key)
 488 {
 489     int unix_handle, needs_close, flags;
 490
 491     TRACE("(%p,%p,%p,%p,%p,%p,0x%08x,%p,%p),partial stub!\n",
 492           hFile,hEvent,apc,apc_user,io_status,buffer,length,offset,key);
 493
 494     if (!io_status) return STATUS_ACCESS_VIOLATION;
 495
 496     io_status->Information = 0;
 497     io_status->u.Status = server_get_unix_fd( hFile, FILE_READ_DATA, &unix_handle, &needs_close, &flags );
 498     if (io_status->u.Status) return io_status->u.Status;
 499
 500     if (flags & FD_FLAG_RECV_SHUTDOWN)
 501     {
 502         if (needs_close) close( unix_handle );
 503         return STATUS_PIPE_DISCONNECTED;
 504     }
 505
 506     if (flags & FD_FLAG_TIMEOUT)
 507     {
 508         if (hEvent)
 509         {
 510             /* this shouldn't happen, but check it */
 511             FIXME("NIY-hEvent\n");
 512             if (needs_close) close( unix_handle );
 513             return STATUS_NOT_IMPLEMENTED;
 514         }
 515         io_status->u.Status = NtCreateEvent(&hEvent, EVENT_ALL_ACCESS, NULL, 0, 0);
 516         if (io_status->u.Status)
 517         {
 518             if (needs_close) close( unix_handle );
 519             return io_status->u.Status;
 520         }
 521     }
 522
 523     if (flags & (FD_FLAG_OVERLAPPED|FD_FLAG_TIMEOUT))
 524     {
 525         async_fileio*   fileio;
 526         NTSTATUS ret;
 527
 528         if (!(fileio = RtlAllocateHeap(GetProcessHeap(), 0, sizeof(async_fileio))))
 529         {
 530             if (needs_close) close( unix_handle );
 531             if (flags & FD_FLAG_TIMEOUT) NtClose(hEvent);
 532             return STATUS_NO_MEMORY;
 533         }
 534         fileio->handle = hFile;
 535         fileio->count = length;
 536         if ( offset == NULL )
 537             fileio->offset = 0;
 538         else
 539         {
 540             fileio->offset = offset->QuadPart;
 541             if (offset->u.HighPart && fileio->offset == offset->u.LowPart)
 542                 FIXME("High part of offset is lost\n");
 543         }
 544         fileio->apc = apc;
 545         fileio->apc_user = apc_user;
 546         fileio->buffer = buffer;
 547         fileio->queue_apc_on_error = 0;
 548         fileio->avail_mode = (flags & FD_FLAG_AVAILABLE);
 549         fileio->event = hEvent;
 550         if (hEvent) NtResetEvent(hEvent, NULL);
 551         if (needs_close) close( unix_handle );
 552
 553         io_status->u.Status = STATUS_PENDING;
 554         ret = fileio_queue_async(fileio, io_status, TRUE);
 555         if (ret != STATUS_SUCCESS)
 556         {
 557             if (flags & FD_FLAG_TIMEOUT) NtClose(hEvent);
 558             return ret;
 559         }
 560         if (flags & FD_FLAG_TIMEOUT)
 561         {
 562             do
 563             {
 564                 ret = NtWaitForSingleObject(hEvent, TRUE, NULL);
 565             }
 566             while (ret == STATUS_USER_APC && io_status->u.Status == STATUS_PENDING);
 567             NtClose(hEvent);
 568             if (ret != STATUS_USER_APC)
 569                 fileio->queue_apc_on_error = 1;
 570         }
 571         else
 572         {
 573             LARGE_INTEGER   timeout;
 574
 575             /* let some APC be run, this will read some already pending data */
 576             timeout.u.LowPart = timeout.u.HighPart = 0;
 577             ret = NtDelayExecution( TRUE, &timeout );
 578             /* the apc didn't run and therefore the completion routine now
 579              * needs to be sent errors.
 580              * Note that there is no race between setting this flag and
 581              * returning errors because apc's are run only during alertable
 582              * waits */
 583             if (ret != STATUS_USER_APC)
 584                 fileio->queue_apc_on_error = 1;
 585         }
 586         TRACE("= 0x%08x\n", io_status->u.Status);
 587         return io_status->u.Status;
 588     }
 589
 590     if (offset)
 591     {
 592         FILE_POSITION_INFORMATION   fpi;
 593
 594         fpi.CurrentByteOffset = *offset;
 595         io_status->u.Status = NtSetInformationFile(hFile, io_status, &fpi, sizeof(fpi),
 596                                                    FilePositionInformation);
 597         if (io_status->u.Status) goto done;
 598     }
 599     /* code for synchronous reads */
 600     while ((io_status->Information = read( unix_handle, buffer, length )) == -1)
 601     {
 602         if ((errno == EAGAIN) || (errno == EINTR)) continue;
 603         if (errno == EFAULT)
 604         {
 605             io_status->Information = 0;
 606             io_status->u.Status = STATUS_ACCESS_VIOLATION;
 607         }
 608         else io_status->u.Status = FILE_GetNtStatus();
 609         break;
 610     }
 611     if (io_status->u.Status == STATUS_SUCCESS && io_status->Information == 0)
 612     {
 613         struct stat st;
 614         if (fstat( unix_handle, &st ) != -1 && S_ISSOCK( st.st_mode ))
 615             io_status->u.Status = STATUS_PIPE_BROKEN;
 616         else
 617             io_status->u.Status = STATUS_END_OF_FILE;
 618     }
 619 done:
 620     if (needs_close) close( unix_handle );
 621     TRACE("= 0x%08x (%lu)\n", io_status->u.Status, io_status->Information);
 622     return io_status->u.Status;
 623 }
 624
 625 /***********************************************************************
 626  *             FILE_AsyncWriteService      (INTERNAL)
 627  */
 628 static void WINAPI FILE_AsyncWriteService(void *ovp, IO_STATUS_BLOCK *iosb, ULONG status)
 629 {
 630     async_fileio *fileio = (async_fileio *) ovp;
 631     int result, fd, needs_close;
 632     int already = iosb->Information;
 633
 634     TRACE("(%p %p 0x%x)\n",iosb, fileio->buffer, status);
 635
 636     switch (status)
 637     {
 638     case STATUS_ALERTED:
 639         /* write some data (non-blocking) */
 640         if ((iosb->u.Status = server_get_unix_fd( fileio->handle, FILE_WRITE_DATA, &fd, &needs_close, NULL )))
 641         {
 642             fileio_terminate(fileio, iosb);
 643             break;
 644         }
 645         if ( fileio->avail_mode )
 646             result = write(fd, &fileio->buffer[already], fileio->count - already);
 647         else
 648         {
 649             result = pwrite(fd, &fileio->buffer[already],
 650                             fileio->count - already, fileio->offset + already);
 651             if ((result < 0) && (errno == ESPIPE))
 652                 result = write(fd, &fileio->buffer[already], fileio->count - already);
 653         }
 654         if (needs_close) close( fd );
 655
 656         if (result < 0)
 657         {
 658             if (errno == EAGAIN || errno == EINTR) iosb->u.Status = STATUS_PENDING;
 659             else iosb->u.Status = FILE_GetNtStatus();
 660         }
 661         else
 662         {
 663             iosb->Information += result;
 664             iosb->u.Status = (iosb->Information < fileio->count) ? STATUS_PENDING : STATUS_SUCCESS;
 665             TRACE("wrote %d more bytes %ld/%d so far\n",
 666                   result, iosb->Information, fileio->count);
 667         }
 668         if (iosb->u.Status == STATUS_PENDING)
 669             fileio_queue_async(fileio, iosb, FALSE);
 670         else
 671             fileio_terminate(fileio, iosb);
 672         break;
 673     default:
 674         iosb->u.Status = status;
 675         fileio_terminate(fileio, iosb);
 676         break;
 677     }
 678 }
 679
 680 /******************************************************************************
 681  *  NtWriteFile                                 [NTDLL.@]
 682  *  ZwWriteFile                                 [NTDLL.@]
 683  *
 684  * Write to an open file handle.
 685  *
 686  * PARAMS
 687  *  FileHandle    [I] Handle returned from ZwOpenFile() or ZwCreateFile()
 688  *  Event         [I] Event to signal upon completion (or NULL)
 689  *  ApcRoutine    [I] Callback to call upon completion (or NULL)
 690  *  ApcContext    [I] Context for ApcRoutine (or NULL)
 691  *  IoStatusBlock [O] Receives information about the operation on return
 692  *  Buffer        [I] Source for the data to write
 693  *  Length        [I] Size of Buffer
 694  *  ByteOffset    [O] Destination for the new file pointer position (or NULL)
 695  *  Key           [O] Function unknown (may be NULL)
 696  *
 697  * RETURNS
 698  *  Success: 0. IoStatusBlock is updated, and the Information member contains
 699  *           The number of bytes written.
 700  *  Failure: An NTSTATUS error code describing the error.
 701  */
 702 NTSTATUS WINAPI NtWriteFile(HANDLE hFile, HANDLE hEvent,
 703                             PIO_APC_ROUTINE apc, void* apc_user,
 704                             PIO_STATUS_BLOCK io_status,
 705                             const void* buffer, ULONG length,
 706                             PLARGE_INTEGER offset, PULONG key)
 707 {
 708     int unix_handle, needs_close, flags;
 709
 710     TRACE("(%p,%p,%p,%p,%p,%p,0x%08x,%p,%p)!\n",
 711           hFile,hEvent,apc,apc_user,io_status,buffer,length,offset,key);
 712
 713     if (!io_status) return STATUS_ACCESS_VIOLATION;
 714
 715     io_status->Information = 0;
 716     io_status->u.Status = server_get_unix_fd( hFile, FILE_WRITE_DATA, &unix_handle, &needs_close, &flags );
 717     if (io_status->u.Status) return io_status->u.Status;
 718
 719     if (flags & FD_FLAG_SEND_SHUTDOWN)
 720     {
 721         if (needs_close) close( unix_handle );
 722         return STATUS_PIPE_DISCONNECTED;
 723     }
 724
 725     if (flags & FD_FLAG_TIMEOUT)
 726     {
 727         if (hEvent)
 728         {
 729             /* this shouldn't happen, but check it */
 730             FIXME("NIY-hEvent\n");
 731             if (needs_close) close( unix_handle );
 732             return STATUS_NOT_IMPLEMENTED;
 733         }
 734         io_status->u.Status = NtCreateEvent(&hEvent, EVENT_ALL_ACCESS, NULL, 0, 0);
 735         if (io_status->u.Status)
 736         {
 737             if (needs_close) close( unix_handle );
 738             return io_status->u.Status;
 739         }
 740     }
 741
 742     if (flags & (FD_FLAG_OVERLAPPED|FD_FLAG_TIMEOUT))
 743     {
 744         async_fileio*   fileio;
 745         NTSTATUS ret;
 746
 747         if (!(fileio = RtlAllocateHeap(GetProcessHeap(), 0, sizeof(async_fileio))))
 748         {
 749             if (needs_close) close( unix_handle );
 750             if (flags & FD_FLAG_TIMEOUT) NtClose(hEvent);
 751             return STATUS_NO_MEMORY;
 752         }
 753         fileio->handle = hFile;
 754         fileio->count = length;
 755         if (offset)
 756         {
 757             fileio->offset = offset->QuadPart;
 758             if (offset->u.HighPart && fileio->offset == offset->u.LowPart)
 759                 FIXME("High part of offset is lost\n");
 760         }
 761         else
 762         {
 763             fileio->offset = 0;
 764         }
 765         fileio->apc = apc;
 766         fileio->apc_user = apc_user;
 767         fileio->buffer = (void*)buffer;
 768         fileio->queue_apc_on_error = 0;
 769         fileio->avail_mode = (flags & FD_FLAG_AVAILABLE);
 770         fileio->event = hEvent;
 771         if (hEvent) NtResetEvent(hEvent, NULL);
 772         if (needs_close) close( unix_handle );
 773
 774         io_status->Information = 0;
 775         io_status->u.Status = STATUS_PENDING;
 776         ret = fileio_queue_async(fileio, io_status, FALSE);
 777         if (ret != STATUS_SUCCESS)
 778         {
 779             if (flags & FD_FLAG_TIMEOUT) NtClose(hEvent);
 780             return ret;
 781         }
 782         if (flags & FD_FLAG_TIMEOUT)
 783         {
 784             do
 785             {
 786                 ret = NtWaitForSingleObject(hEvent, TRUE, NULL);
 787             }
 788             while (ret == STATUS_USER_APC && io_status->u.Status == STATUS_PENDING);
 789             NtClose(hEvent);
 790             if (ret != STATUS_USER_APC)
 791                 fileio->queue_apc_on_error = 1;
 792         }
 793         else
 794         {
 795             LARGE_INTEGER   timeout;
 796
 797             /* let some APC be run, this will write as much data as possible */
 798             timeout.u.LowPart = timeout.u.HighPart = 0;
 799             ret = NtDelayExecution( TRUE, &timeout );
 800             /* the apc didn't run and therefore the completion routine now
 801              * needs to be sent errors.
 802              * Note that there is no race between setting this flag and
 803              * returning errors because apc's are run only during alertable
 804              * waits */
 805             if (ret != STATUS_USER_APC)
 806                 fileio->queue_apc_on_error = 1;
 807         }
 808         return io_status->u.Status;
 809     }
 810
 811     if (offset)
 812     {
 813         FILE_POSITION_INFORMATION   fpi;
 814
 815         fpi.CurrentByteOffset = *offset;
 816         io_status->u.Status = NtSetInformationFile(hFile, io_status, &fpi, sizeof(fpi),
 817                                                    FilePositionInformation);
 818         if (io_status->u.Status) goto done;
 819     }
 820
 821     /* synchronous file write */
 822     while ((io_status->Information = write( unix_handle, buffer, length )) == -1)
 823     {
 824         if ((errno == EAGAIN) || (errno == EINTR)) continue;
 825         if (errno == EFAULT)
 826         {
 827             io_status->Information = 0;
 828             io_status->u.Status = STATUS_INVALID_USER_BUFFER;
 829         }
 830         else if (errno == ENOSPC) io_status->u.Status = STATUS_DISK_FULL;
 831         else io_status->u.Status = FILE_GetNtStatus();
 832         break;
 833     }
 834 done:
 835     if (needs_close) close( unix_handle );
 836     return io_status->u.Status;
 837 }
 838
 839 /**************************************************************************
 840  *              NtDeviceIoControlFile                   [NTDLL.@]
 841  *              ZwDeviceIoControlFile                   [NTDLL.@]
 842  *
 843  * Perform an I/O control operation on an open file handle.
 844  *
 845  * PARAMS
 846  *  handle         [I] Handle returned from ZwOpenFile() or ZwCreateFile()
 847  *  event          [I] Event to signal upon completion (or NULL)
 848  *  apc            [I] Callback to call upon completion (or NULL)
 849  *  apc_context    [I] Context for ApcRoutine (or NULL)
 850  *  io             [O] Receives information about the operation on return
 851  *  code           [I] Control code for the operation to perform
 852  *  in_buffer      [I] Source for any input data required (or NULL)
 853  *  in_size        [I] Size of InputBuffer
 854  *  out_buffer     [O] Source for any output data returned (or NULL)
 855  *  out_size       [I] Size of OutputBuffer
 856  *
 857  * RETURNS
 858  *  Success: 0. IoStatusBlock is updated.
 859  *  Failure: An NTSTATUS error code describing the error.
 860  */
 861 NTSTATUS WINAPI NtDeviceIoControlFile(HANDLE handle, HANDLE event,
 862                                       PIO_APC_ROUTINE apc, PVOID apc_context,
 863                                       PIO_STATUS_BLOCK io, ULONG code,
 864                                       PVOID in_buffer, ULONG in_size,
 865                                       PVOID out_buffer, ULONG out_size)
 866 {
 867     ULONG device = (code >> 16);
 868
 869     TRACE("(%p,%p,%p,%p,%p,0x%08x,%p,0x%08x,%p,0x%08x)\n",
 870           handle, event, apc, apc_context, io, code,
 871           in_buffer, in_size, out_buffer, out_size);
 872
 873     switch(device)
 874     {
 875     case FILE_DEVICE_DISK:
 876     case FILE_DEVICE_CD_ROM:
 877     case FILE_DEVICE_DVD:
 878     case FILE_DEVICE_CONTROLLER:
 879     case FILE_DEVICE_MASS_STORAGE:
 880         io->u.Status = CDROM_DeviceIoControl(handle, event, apc, apc_context, io, code,
 881                                              in_buffer, in_size, out_buffer, out_size);
 882         break;
 883     case FILE_DEVICE_SERIAL_PORT:
 884         io->u.Status = COMM_DeviceIoControl(handle, event, apc, apc_context, io, code,
 885                                             in_buffer, in_size, out_buffer, out_size);
 886         break;
 887     case FILE_DEVICE_TAPE:
 888         io->u.Status = TAPE_DeviceIoControl(handle, event, apc, apc_context, io, code,
 889                                             in_buffer, in_size, out_buffer, out_size);
 890         break;
 891     default:
 892         FIXME("Unsupported ioctl %x (device=%x access=%x func=%x method=%x)\n",
 893               code, device, (code >> 14) & 3, (code >> 2) & 0xfff, code & 3);
 894         io->u.Status = STATUS_NOT_SUPPORTED;
 895         break;
 896     }
 897     return io->u.Status;
 898 }
 899
 900 /***********************************************************************
 901  *           pipe_completion_wait   (Internal)
 902  */
 903 static void CALLBACK pipe_completion_wait(HANDLE event, PIO_STATUS_BLOCK iosb, ULONG status)
 904 {
 905     TRACE("for %p/%p, status=%08x\n", event, iosb, status);
 906
 907     if (iosb)
 908         iosb->u.Status = status;
 909     NtSetEvent(event, NULL);
 910     TRACE("done\n");
 911 }
 912
 913 /**************************************************************************
 914  *              NtFsControlFile                 [NTDLL.@]
 915  *              ZwFsControlFile                 [NTDLL.@]
 916  *
 917  * Perform a file system control operation on an open file handle.
 918  *
 919  * PARAMS
 920  *  handle         [I] Handle returned from ZwOpenFile() or ZwCreateFile()
 921  *  event          [I] Event to signal upon completion (or NULL)
 922  *  apc            [I] Callback to call upon completion (or NULL)
 923  *  apc_context    [I] Context for ApcRoutine (or NULL)
 924  *  io             [O] Receives information about the operation on return
 925  *  code           [I] Control code for the operation to perform
 926  *  in_buffer      [I] Source for any input data required (or NULL)
 927  *  in_size        [I] Size of InputBuffer
 928  *  out_buffer     [O] Source for any output data returned (or NULL)
 929  *  out_size       [I] Size of OutputBuffer
 930  *
 931  * RETURNS
 932  *  Success: 0. IoStatusBlock is updated.
 933  *  Failure: An NTSTATUS error code describing the error.
 934  */
 935 NTSTATUS WINAPI NtFsControlFile(HANDLE handle, HANDLE event, PIO_APC_ROUTINE apc,
 936                                 PVOID apc_context, PIO_STATUS_BLOCK io, ULONG code,
 937                                 PVOID in_buffer, ULONG in_size, PVOID out_buffer, ULONG out_size)
 938 {
 939     TRACE("(%p,%p,%p,%p,%p,0x%08x,%p,0x%08x,%p,0x%08x)\n",
 940           handle, event, apc, apc_context, io, code,
 941           in_buffer, in_size, out_buffer, out_size);
 942
 943     if (!io) return STATUS_INVALID_PARAMETER;
 944
 945     switch(code)
 946     {
 947     case FSCTL_DISMOUNT_VOLUME:
 948         io->u.Status = DIR_unmount_device( handle );
 949         break;
 950
 951     case FSCTL_PIPE_LISTEN:
 952         {
 953             HANDLE internal_event = 0;
 954
 955             if(!event)
 956             {
 957                 io->u.Status = NtCreateEvent(&internal_event, EVENT_ALL_ACCESS, NULL, FALSE, FALSE);
 958                 if (io->u.Status != STATUS_SUCCESS) return io->u.Status;
 959             }
 960             SERVER_START_REQ(connect_named_pipe)
 961             {
 962                 req->handle = handle;
 963                 req->event = event ? event : internal_event;
 964                 req->func = pipe_completion_wait;
 965                 io->u.Status = wine_server_call(req);
 966             }
 967             SERVER_END_REQ;
 968
 969             if(io->u.Status == STATUS_SUCCESS)
 970             {
 971                 if(event) io->u.Status = STATUS_PENDING;
 972                 else
 973                 {
 974                     do
 975                         io->u.Status = NtWaitForSingleObject(internal_event, TRUE, NULL);
 976                     while(io->u.Status == STATUS_USER_APC);
 977                 }
 978             }
 979             if (internal_event) NtClose(internal_event);
 980         }
 981         break;
 982
 983     case FSCTL_PIPE_WAIT:
 984         {
 985             HANDLE internal_event = 0;
 986             FILE_PIPE_WAIT_FOR_BUFFER *buff = in_buffer;
 987
 988             if(!event)
 989             {
 990                 io->u.Status = NtCreateEvent(&internal_event, EVENT_ALL_ACCESS, NULL, FALSE, FALSE);
 991                 if (io->u.Status != STATUS_SUCCESS) return io->u.Status;
 992             }
 993             SERVER_START_REQ(wait_named_pipe)
 994             {
 995                 req->handle = handle;
 996                 req->timeout = buff->TimeoutSpecified ? buff->Timeout.QuadPart / -10000L
 997                                : NMPWAIT_USE_DEFAULT_WAIT;
 998                 req->event = event ? event : internal_event;
 999                 req->func = pipe_completion_wait;
1000                 wine_server_add_data( req, buff->Name, buff->NameLength );
1001                 io->u.Status = wine_server_call( req );
1002             }
1003             SERVER_END_REQ;
1004
1005             if(io->u.Status == STATUS_SUCCESS)
1006             {
1007                 if(event)
1008                     io->u.Status = STATUS_PENDING;
1009                 else
1010                 {
1011                     do
1012                         io->u.Status = NtWaitForSingleObject(internal_event, TRUE, NULL);
1013                     while(io->u.Status == STATUS_USER_APC);
1014                 }
1015             }
1016             if (internal_event) NtClose(internal_event);
1017         }
1018         break;
1019
1020     case FSCTL_PIPE_PEEK:
1021         {
1022             FILE_PIPE_PEEK_BUFFER *buffer = out_buffer;
1023             int avail = 0, fd, needs_close, flags;
1024
1025             if (out_size < FIELD_OFFSET( FILE_PIPE_PEEK_BUFFER, Data ))
1026             {
1027                 io->u.Status = STATUS_INFO_LENGTH_MISMATCH;
1028                 break;
1029             }
1030
1031             if ((io->u.Status = server_get_unix_fd( handle, FILE_READ_DATA, &fd, &needs_close, &flags )))
1032                 break;
1033
1034             if (flags & FD_FLAG_RECV_SHUTDOWN)
1035             {
1036                 if (needs_close) close( fd );
1037                 io->u.Status = STATUS_PIPE_DISCONNECTED;
1038                 break;
1039             }
1040
1041 #ifdef FIONREAD
1042             if (ioctl( fd, FIONREAD, &avail ) != 0)
1043             {
1044                 TRACE("FIONREAD failed reason: %s\n",strerror(errno));
1045                 if (needs_close) close( fd );
1046                 io->u.Status = FILE_GetNtStatus();
1047                 break;
1048             }
1049 #endif
1050             if (!avail)  /* check for closed pipe */
1051             {
1052                 struct pollfd pollfd;
1053                 int ret;
1054
1055                 pollfd.fd = fd;
1056                 pollfd.events = POLLIN;
1057                 pollfd.revents = 0;
1058                 ret = poll( &pollfd, 1, 0 );
1059                 if (ret == -1 || (ret == 1 && (pollfd.revents & (POLLHUP|POLLERR))))
1060                 {
1061                     if (needs_close) close( fd );
1062                     io->u.Status = STATUS_PIPE_BROKEN;
1063                     break;
1064                 }
1065             }
1066             buffer->NamedPipeState    = 0;  /* FIXME */
1067             buffer->ReadDataAvailable = avail;
1068             buffer->NumberOfMessages  = 0;  /* FIXME */
1069             buffer->MessageLength     = 0;  /* FIXME */
1070             io->Information = FIELD_OFFSET( FILE_PIPE_PEEK_BUFFER, Data );
1071             io->u.Status = STATUS_SUCCESS;
1072             if (avail)
1073             {
1074                 ULONG data_size = out_size - FIELD_OFFSET( FILE_PIPE_PEEK_BUFFER, Data );
1075                 if (data_size)
1076                 {
1077                     int res = recv( fd, buffer->Data, data_size, MSG_PEEK );
1078                     if (res >= 0) io->Information += res;
1079                 }
1080             }
1081             if (needs_close) close( fd );
1082         }
1083         break;
1084
1085     case FSCTL_PIPE_DISCONNECT:
1086         SERVER_START_REQ(disconnect_named_pipe)
1087         {
1088             req->handle = handle;
1089             io->u.Status = wine_server_call(req);
1090             if (!io->u.Status) server_remove_fd_from_cache( handle );
1091         }
1092         SERVER_END_REQ;
1093         break;
1094
1095     case FSCTL_LOCK_VOLUME:
1096     case FSCTL_UNLOCK_VOLUME:
1097         FIXME("stub! return success - Unsupported fsctl %x (device=%x access=%x func=%x method=%x)\n",
1098               code, code >> 16, (code >> 14) & 3, (code >> 2) & 0xfff, code & 3);
1099         io->u.Status = STATUS_SUCCESS;
1100         break;
1101
1102     default:
1103         FIXME("Unsupported fsctl %x (device=%x access=%x func=%x method=%x)\n",
1104               code, code >> 16, (code >> 14) & 3, (code >> 2) & 0xfff, code & 3);
1105         io->u.Status = STATUS_NOT_SUPPORTED;
1106         break;
1107     }
1108     return io->u.Status;
1109 }
1110
1111 /******************************************************************************
1112  *  NtSetVolumeInformationFile          [NTDLL.@]
1113  *  ZwSetVolumeInformationFile          [NTDLL.@]
1114  *
1115  * Set volume information for an open file handle.
1116  *
1117  * PARAMS
1118  *  FileHandle         [I] Handle returned from ZwOpenFile() or ZwCreateFile()
1119  *  IoStatusBlock      [O] Receives information about the operation on return
1120  *  FsInformation      [I] Source for volume information
1121  *  Length             [I] Size of FsInformation
1122  *  FsInformationClass [I] Type of volume information to set
1123  *
1124  * RETURNS
1125  *  Success: 0. IoStatusBlock is updated.
1126  *  Failure: An NTSTATUS error code describing the error.
1127  */
1128 NTSTATUS WINAPI NtSetVolumeInformationFile(
1129         IN HANDLE FileHandle,
1130         PIO_STATUS_BLOCK IoStatusBlock,
1131         PVOID FsInformation,
1132         ULONG Length,
1133         FS_INFORMATION_CLASS FsInformationClass)
1134 {
1135         FIXME("(%p,%p,%p,0x%08x,0x%08x) stub\n",
1136         FileHandle,IoStatusBlock,FsInformation,Length,FsInformationClass);
1137         return 0;
1138 }
1139
1140 /******************************************************************************
1141  *  NtQueryInformationFile              [NTDLL.@]
1142  *  ZwQueryInformationFile              [NTDLL.@]
1143  *
1144  * Get information about an open file handle.
1145  *
1146  * PARAMS
1147  *  hFile    [I] Handle returned from ZwOpenFile() or ZwCreateFile()
1148  *  io       [O] Receives information about the operation on return
1149  *  ptr      [O] Destination for file information
1150  *  len      [I] Size of FileInformation
1151  *  class    [I] Type of file information to get
1152  *
1153  * RETURNS
1154  *  Success: 0. IoStatusBlock and FileInformation are updated.
1155  *  Failure: An NTSTATUS error code describing the error.
1156  */
1157 NTSTATUS WINAPI NtQueryInformationFile( HANDLE hFile, PIO_STATUS_BLOCK io,
1158                                         PVOID ptr, LONG len, FILE_INFORMATION_CLASS class )
1159 {
1160     static const size_t info_sizes[] =
1161     {
1162         0,
1163         sizeof(FILE_DIRECTORY_INFORMATION),            /* FileDirectoryInformation */
1164         sizeof(FILE_FULL_DIRECTORY_INFORMATION),       /* FileFullDirectoryInformation */
1165         sizeof(FILE_BOTH_DIRECTORY_INFORMATION),       /* FileBothDirectoryInformation */
1166         sizeof(FILE_BASIC_INFORMATION),                /* FileBasicInformation */
1167         sizeof(FILE_STANDARD_INFORMATION),             /* FileStandardInformation */
1168         sizeof(FILE_INTERNAL_INFORMATION),             /* FileInternalInformation */
1169         sizeof(FILE_EA_INFORMATION),                   /* FileEaInformation */
1170         sizeof(FILE_ACCESS_INFORMATION),               /* FileAccessInformation */
1171         sizeof(FILE_NAME_INFORMATION)-sizeof(WCHAR),   /* FileNameInformation */
1172         sizeof(FILE_RENAME_INFORMATION)-sizeof(WCHAR), /* FileRenameInformation */
1173         0,                                             /* FileLinkInformation */
1174         sizeof(FILE_NAMES_INFORMATION)-sizeof(WCHAR),  /* FileNamesInformation */
1175         sizeof(FILE_DISPOSITION_INFORMATION),          /* FileDispositionInformation */
1176         sizeof(FILE_POSITION_INFORMATION),             /* FilePositionInformation */
1177         sizeof(FILE_FULL_EA_INFORMATION),              /* FileFullEaInformation */
1178         sizeof(FILE_MODE_INFORMATION),                 /* FileModeInformation */
1179         sizeof(FILE_ALIGNMENT_INFORMATION),            /* FileAlignmentInformation */
1180         sizeof(FILE_ALL_INFORMATION)-sizeof(WCHAR),    /* FileAllInformation */
1181         sizeof(FILE_ALLOCATION_INFORMATION),           /* FileAllocationInformation */
1182         sizeof(FILE_END_OF_FILE_INFORMATION),          /* FileEndOfFileInformation */
1183         0,                                             /* FileAlternateNameInformation */
1184         sizeof(FILE_STREAM_INFORMATION)-sizeof(WCHAR), /* FileStreamInformation */
1185         0,                                             /* FilePipeInformation */
1186         sizeof(FILE_PIPE_LOCAL_INFORMATION),           /* FilePipeLocalInformation */
1187         0,                                             /* FilePipeRemoteInformation */
1188         sizeof(FILE_MAILSLOT_QUERY_INFORMATION),       /* FileMailslotQueryInformation */
1189         0,                                             /* FileMailslotSetInformation */
1190         0,                                             /* FileCompressionInformation */
1191         0,                                             /* FileObjectIdInformation */
1192         0,                                             /* FileCompletionInformation */
1193         0,                                             /* FileMoveClusterInformation */
1194         0,                                             /* FileQuotaInformation */
1195         0,                                             /* FileReparsePointInformation */
1196         0,                                             /* FileNetworkOpenInformation */
1197         0,                                             /* FileAttributeTagInformation */
1198         0                                              /* FileTrackingInformation */
1199     };
1200
1201     struct stat st;
1202     int fd, needs_close;
1203
1204     TRACE("(%p,%p,%p,0x%08x,0x%08x)\n", hFile, io, ptr, len, class);
1205
1206     io->Information = 0;
1207
1208     if (class <= 0 || class >= FileMaximumInformation)
1209         return io->u.Status = STATUS_INVALID_INFO_CLASS;
1210     if (!info_sizes[class])
1211     {
1212         FIXME("Unsupported class (%d)\n", class);
1213         return io->u.Status = STATUS_NOT_IMPLEMENTED;
1214     }
1215     if (len < info_sizes[class])
1216         return io->u.Status = STATUS_INFO_LENGTH_MISMATCH;
1217
1218     if (class != FilePipeLocalInformation)
1219     {
1220         if ((io->u.Status = server_get_unix_fd( hFile, 0, &fd, &needs_close, NULL )))
1221             return io->u.Status;
1222     }
1223
1224     switch (class)
1225     {
1226     case FileBasicInformation:
1227         {
1228             FILE_BASIC_INFORMATION *info = ptr;
1229
1230             if (fstat( fd, &st ) == -1)
1231                 io->u.Status = FILE_GetNtStatus();
1232             else if (!S_ISREG(st.st_mode) && !S_ISDIR(st.st_mode))
1233                 io->u.Status = STATUS_INVALID_INFO_CLASS;
1234             else
1235             {
1236                 if (S_ISDIR(st.st_mode)) info->FileAttributes = FILE_ATTRIBUTE_DIRECTORY;
1237                 else info->FileAttributes = FILE_ATTRIBUTE_ARCHIVE;
1238                 if (!(st.st_mode & (S_IWUSR | S_IWGRP | S_IWOTH)))
1239                     info->FileAttributes |= FILE_ATTRIBUTE_READONLY;
1240                 RtlSecondsSince1970ToTime( st.st_mtime, &info->CreationTime);
1241                 RtlSecondsSince1970ToTime( st.st_mtime, &info->LastWriteTime);
1242                 RtlSecondsSince1970ToTime( st.st_ctime, &info->ChangeTime);
1243                 RtlSecondsSince1970ToTime( st.st_atime, &info->LastAccessTime);
1244             }
1245         }
1246         break;
1247     case FileStandardInformation:
1248         {
1249             FILE_STANDARD_INFORMATION *info = ptr;
1250
1251             if (fstat( fd, &st ) == -1) io->u.Status = FILE_GetNtStatus();
1252             else
1253             {
1254                 if ((info->Directory = S_ISDIR(st.st_mode)))
1255                 {
1256                     info->AllocationSize.QuadPart = 0;
1257                     info->EndOfFile.QuadPart      = 0;
1258                     info->NumberOfLinks           = 1;
1259                     info->DeletePending           = FALSE;
1260                 }
1261                 else
1262                 {
1263                     info->AllocationSize.QuadPart = (ULONGLONG)st.st_blocks * 512;
1264                     info->EndOfFile.QuadPart      = st.st_size;
1265                     info->NumberOfLinks           = st.st_nlink;
1266                     info->DeletePending           = FALSE; /* FIXME */
1267                 }
1268             }
1269         }
1270         break;
1271     case FilePositionInformation:
1272         {
1273             FILE_POSITION_INFORMATION *info = ptr;
1274             off_t res = lseek( fd, 0, SEEK_CUR );
1275             if (res == (off_t)-1) io->u.Status = FILE_GetNtStatus();
1276             else info->CurrentByteOffset.QuadPart = res;
1277         }
1278         break;
1279     case FileInternalInformation:
1280         {
1281             FILE_INTERNAL_INFORMATION *info = ptr;
1282
1283             if (fstat( fd, &st ) == -1) io->u.Status = FILE_GetNtStatus();
1284             else info->IndexNumber.QuadPart = st.st_ino;
1285         }
1286         break;
1287     case FileEaInformation:
1288         {
1289             FILE_EA_INFORMATION *info = ptr;
1290             info->EaSize = 0;
1291         }
1292         break;
1293     case FileEndOfFileInformation:
1294         {
1295             FILE_END_OF_FILE_INFORMATION *info = ptr;
1296
1297             if (fstat( fd, &st ) == -1) io->u.Status = FILE_GetNtStatus();
1298             else info->EndOfFile.QuadPart = S_ISDIR(st.st_mode) ? 0 : st.st_size;
1299         }
1300         break;
1301     case FileAllInformation:
1302         {
1303             FILE_ALL_INFORMATION *info = ptr;
1304
1305             if (fstat( fd, &st ) == -1) io->u.Status = FILE_GetNtStatus();
1306             else if (!S_ISREG(st.st_mode) && !S_ISDIR(st.st_mode))
1307                 io->u.Status = STATUS_INVALID_INFO_CLASS;
1308             else
1309             {
1310                 if ((info->StandardInformation.Directory = S_ISDIR(st.st_mode)))
1311                 {
1312                     info->BasicInformation.FileAttributes = FILE_ATTRIBUTE_DIRECTORY;
1313                     info->StandardInformation.AllocationSize.QuadPart = 0;
1314                     info->StandardInformation.EndOfFile.QuadPart      = 0;
1315                     info->StandardInformation.NumberOfLinks           = 1;
1316                     info->StandardInformation.DeletePending           = FALSE;
1317                 }
1318                 else
1319                 {
1320                     info->BasicInformation.FileAttributes = FILE_ATTRIBUTE_ARCHIVE;
1321                     info->StandardInformation.AllocationSize.QuadPart = (ULONGLONG)st.st_blocks * 512;
1322                     info->StandardInformation.EndOfFile.QuadPart      = st.st_size;
1323                     info->StandardInformation.NumberOfLinks           = st.st_nlink;
1324                     info->StandardInformation.DeletePending           = FALSE; /* FIXME */
1325                 }
1326                 if (!(st.st_mode & (S_IWUSR | S_IWGRP | S_IWOTH)))
1327                     info->BasicInformation.FileAttributes |= FILE_ATTRIBUTE_READONLY;
1328                 RtlSecondsSince1970ToTime( st.st_mtime, &info->BasicInformation.CreationTime);
1329                 RtlSecondsSince1970ToTime( st.st_mtime, &info->BasicInformation.LastWriteTime);
1330                 RtlSecondsSince1970ToTime( st.st_ctime, &info->BasicInformation.ChangeTime);
1331                 RtlSecondsSince1970ToTime( st.st_atime, &info->BasicInformation.LastAccessTime);
1332                 info->InternalInformation.IndexNumber.QuadPart = st.st_ino;
1333                 info->EaInformation.EaSize = 0;
1334                 info->AccessInformation.AccessFlags = 0;  /* FIXME */
1335                 info->PositionInformation.CurrentByteOffset.QuadPart = lseek( fd, 0, SEEK_CUR );
1336                 info->ModeInformation.Mode = 0;  /* FIXME */
1337                 info->AlignmentInformation.AlignmentRequirement = 1;  /* FIXME */
1338                 info->NameInformation.FileNameLength = 0;
1339                 io->Information = sizeof(*info) - sizeof(WCHAR);
1340             }
1341         }
1342         break;
1343     case FileMailslotQueryInformation:
1344         {
1345             FILE_MAILSLOT_QUERY_INFORMATION *info = ptr;
1346
1347             SERVER_START_REQ( set_mailslot_info )
1348             {
1349                 req->handle = hFile;
1350                 req->flags = 0;
1351                 io->u.Status = wine_server_call( req );
1352                 if( io->u.Status == STATUS_SUCCESS )
1353                 {
1354                     info->MaximumMessageSize = reply->max_msgsize;
1355                     info->MailslotQuota = 0;
1356                     info->NextMessageSize = 0;
1357                     info->MessagesAvailable = 0;
1358                     info->ReadTimeout.QuadPart = reply->read_timeout * -10000;
1359                 }
1360             }
1361             SERVER_END_REQ;
1362             if (!io->u.Status)
1363             {
1364                 ULONG size = info->MaximumMessageSize ? info->MaximumMessageSize : 0x10000;
1365                 char *tmpbuf = RtlAllocateHeap( GetProcessHeap(), 0, size );
1366                 if (tmpbuf)
1367                 {
1368                     int fd, needs_close;
1369                     if (!server_get_unix_fd( hFile, FILE_READ_DATA, &fd, &needs_close, NULL ))
1370                     {
1371                         int res = recv( fd, tmpbuf, size, MSG_PEEK );
1372                         info->MessagesAvailable = (res > 0);
1373                         info->NextMessageSize = (res >= 0) ? res : MAILSLOT_NO_MESSAGE;
1374                         if (needs_close) close( fd );
1375                     }
1376                     RtlFreeHeap( GetProcessHeap(), 0, tmpbuf );
1377                 }
1378             }
1379         }
1380         break;
1381     case FilePipeLocalInformation:
1382         {
1383             FILE_PIPE_LOCAL_INFORMATION* pli = ptr;
1384
1385             SERVER_START_REQ( get_named_pipe_info )
1386             {
1387                 req->handle = hFile;
1388                 if (!(io->u.Status = wine_server_call( req )))
1389                 {
1390                     pli->NamedPipeType = (reply->flags & NAMED_PIPE_MESSAGE_STREAM_WRITE) ?
1391                         FILE_PIPE_TYPE_MESSAGE : FILE_PIPE_TYPE_BYTE;
1392                     pli->NamedPipeConfiguration = 0; /* FIXME */
1393                     pli->MaximumInstances = reply->maxinstances;
1394                     pli->CurrentInstances = reply->instances;
1395                     pli->InboundQuota = reply->insize;
1396                     pli->ReadDataAvailable = 0; /* FIXME */
1397                     pli->OutboundQuota = reply->outsize;
1398                     pli->WriteQuotaAvailable = 0; /* FIXME */
1399                     pli->NamedPipeState = 0; /* FIXME */
1400                     pli->NamedPipeEnd = (reply->flags & NAMED_PIPE_SERVER_END) ?
1401                         FILE_PIPE_SERVER_END : FILE_PIPE_CLIENT_END;
1402                 }
1403             }
1404             SERVER_END_REQ;
1405         }
1406         break;
1407     default:
1408         FIXME("Unsupported class (%d)\n", class);
1409         io->u.Status = STATUS_NOT_IMPLEMENTED;
1410         break;
1411     }
1412     if (needs_close) close( fd );
1413     if (io->u.Status == STATUS_SUCCESS && !io->Information) io->Information = info_sizes[class];
1414     return io->u.Status;
1415 }
1416
1417 /******************************************************************************
1418  *  NtSetInformationFile                [NTDLL.@]
1419  *  ZwSetInformationFile                [NTDLL.@]
1420  *
1421  * Set information about an open file handle.
1422  *
1423  * PARAMS
1424  *  handle  [I] Handle returned from ZwOpenFile() or ZwCreateFile()
1425  *  io      [O] Receives information about the operation on return
1426  *  ptr     [I] Source for file information
1427  *  len     [I] Size of FileInformation
1428  *  class   [I] Type of file information to set
1429  *
1430  * RETURNS
1431  *  Success: 0. io is updated.
1432  *  Failure: An NTSTATUS error code describing the error.
1433  */
1434 NTSTATUS WINAPI NtSetInformationFile(HANDLE handle, PIO_STATUS_BLOCK io,
1435                                      PVOID ptr, ULONG len, FILE_INFORMATION_CLASS class)
1436 {
1437     int fd, needs_close;
1438
1439     TRACE("(%p,%p,%p,0x%08x,0x%08x)\n", handle, io, ptr, len, class);
1440
1441     if ((io->u.Status = server_get_unix_fd( handle, 0, &fd, &needs_close, NULL )))
1442         return io->u.Status;
1443
1444     io->u.Status = STATUS_SUCCESS;
1445     switch (class)
1446     {
1447     case FileBasicInformation:
1448         if (len >= sizeof(FILE_BASIC_INFORMATION))
1449         {
1450             struct stat st;
1451             const FILE_BASIC_INFORMATION *info = ptr;
1452
1453             if (info->LastAccessTime.QuadPart || info->LastWriteTime.QuadPart)
1454             {
1455                 ULONGLONG sec, nsec;
1456                 struct timeval tv[2];
1457
1458                 if (!info->LastAccessTime.QuadPart || !info->LastWriteTime.QuadPart)
1459                 {
1460
1461                     tv[0].tv_sec = tv[0].tv_usec = 0;
1462                     tv[1].tv_sec = tv[1].tv_usec = 0;
1463                     if (!fstat( fd, &st ))
1464                     {
1465                         tv[0].tv_sec = st.st_atime;
1466                         tv[1].tv_sec = st.st_mtime;
1467                     }
1468                 }
1469                 if (info->LastAccessTime.QuadPart)
1470                 {
1471                     sec = RtlLargeIntegerDivide( info->LastAccessTime.QuadPart, 10000000, &nsec );
1472                     tv[0].tv_sec = sec - SECS_1601_TO_1970;
1473                     tv[0].tv_usec = (UINT)nsec / 10;
1474                 }
1475                 if (info->LastWriteTime.QuadPart)
1476                 {
1477                     sec = RtlLargeIntegerDivide( info->LastWriteTime.QuadPart, 10000000, &nsec );
1478                     tv[1].tv_sec = sec - SECS_1601_TO_1970;
1479                     tv[1].tv_usec = (UINT)nsec / 10;
1480                 }
1481                 if (futimes( fd, tv ) == -1) io->u.Status = FILE_GetNtStatus();
1482             }
1483
1484             if (io->u.Status == STATUS_SUCCESS && info->FileAttributes)
1485             {
1486                 if (fstat( fd, &st ) == -1) io->u.Status = FILE_GetNtStatus();
1487                 else
1488                 {
1489                     if (info->FileAttributes & FILE_ATTRIBUTE_READONLY)
1490                     {
1491                         if (S_ISDIR( st.st_mode))
1492                             WARN("FILE_ATTRIBUTE_READONLY ignored for directory.\n");
1493                         else
1494                             st.st_mode &= ~0222; /* clear write permission bits */
1495                     }
1496                     else
1497                     {
1498                         /* add write permission only where we already have read permission */
1499                         st.st_mode |= (0600 | ((st.st_mode & 044) >> 1)) & (~FILE_umask);
1500                     }
1501                     if (fchmod( fd, st.st_mode ) == -1) io->u.Status = FILE_GetNtStatus();
1502                 }
1503             }
1504         }
1505         else io->u.Status = STATUS_INVALID_PARAMETER_3;
1506         break;
1507
1508     case FilePositionInformation:
1509         if (len >= sizeof(FILE_POSITION_INFORMATION))
1510         {
1511             const FILE_POSITION_INFORMATION *info = ptr;
1512
1513             if (lseek( fd, info->CurrentByteOffset.QuadPart, SEEK_SET ) == (off_t)-1)
1514                 io->u.Status = FILE_GetNtStatus();
1515         }
1516         else io->u.Status = STATUS_INVALID_PARAMETER_3;
1517         break;
1518
1519     case FileEndOfFileInformation:
1520         if (len >= sizeof(FILE_END_OF_FILE_INFORMATION))
1521         {
1522             struct stat st;
1523             const FILE_END_OF_FILE_INFORMATION *info = ptr;
1524
1525             /* first try normal truncate */
1526             if (ftruncate( fd, (off_t)info->EndOfFile.QuadPart ) != -1) break;
1527
1528             /* now check for the need to extend the file */
1529             if (fstat( fd, &st ) != -1 && (off_t)info->EndOfFile.QuadPart > st.st_size)
1530             {
1531                 static const char zero;
1532
1533                 /* extend the file one byte beyond the requested size and then truncate it */
1534                 /* this should work around ftruncate implementations that can't extend files */
1535                 if (pwrite( fd, &zero, 1, (off_t)info->EndOfFile.QuadPart ) != -1 &&
1536                     ftruncate( fd, (off_t)info->EndOfFile.QuadPart ) != -1) break;
1537             }
1538             io->u.Status = FILE_GetNtStatus();
1539         }
1540         else io->u.Status = STATUS_INVALID_PARAMETER_3;
1541         break;
1542
1543     case FileMailslotSetInformation:
1544         {
1545             FILE_MAILSLOT_SET_INFORMATION *info = ptr;
1546
1547             SERVER_START_REQ( set_mailslot_info )
1548             {
1549                 req->handle = handle;
1550                 req->flags = MAILSLOT_SET_READ_TIMEOUT;
1551                 req->read_timeout = info->ReadTimeout.QuadPart / -10000;
1552                 io->u.Status = wine_server_call( req );
1553             }
1554             SERVER_END_REQ;
1555         }
1556         break;
1557
1558     default:
1559         FIXME("Unsupported class (%d)\n", class);
1560         io->u.Status = STATUS_NOT_IMPLEMENTED;
1561         break;
1562     }
1563     if (needs_close) close( fd );
1564     io->Information = 0;
1565     return io->u.Status;
1566 }
1567
1568
1569 /******************************************************************************
1570  *              NtQueryFullAttributesFile   (NTDLL.@)
1571  */
1572 NTSTATUS WINAPI NtQueryFullAttributesFile( const OBJECT_ATTRIBUTES *attr,
1573                                            FILE_NETWORK_OPEN_INFORMATION *info )
1574 {
1575     ANSI_STRING unix_name;
1576     NTSTATUS status;
1577
1578     if (!(status = wine_nt_to_unix_file_name( attr->ObjectName, &unix_name, FILE_OPEN,
1579                                               !(attr->Attributes & OBJ_CASE_INSENSITIVE) )))
1580     {
1581         struct stat st;
1582
1583         if (stat( unix_name.Buffer, &st ) == -1)
1584             status = FILE_GetNtStatus();
1585         else if (!S_ISREG(st.st_mode) && !S_ISDIR(st.st_mode))
1586             status = STATUS_INVALID_INFO_CLASS;
1587         else
1588         {
1589             if (S_ISDIR(st.st_mode))
1590             {
1591                 info->FileAttributes          = FILE_ATTRIBUTE_DIRECTORY;
1592                 info->AllocationSize.QuadPart = 0;
1593                 info->EndOfFile.QuadPart      = 0;
1594             }
1595             else
1596             {
1597                 info->FileAttributes          = FILE_ATTRIBUTE_ARCHIVE;
1598                 info->AllocationSize.QuadPart = (ULONGLONG)st.st_blocks * 512;
1599                 info->EndOfFile.QuadPart      = st.st_size;
1600             }
1601             if (!(st.st_mode & (S_IWUSR | S_IWGRP | S_IWOTH)))
1602                 info->FileAttributes |= FILE_ATTRIBUTE_READONLY;
1603             RtlSecondsSince1970ToTime( st.st_mtime, &info->CreationTime );
1604             RtlSecondsSince1970ToTime( st.st_mtime, &info->LastWriteTime );
1605             RtlSecondsSince1970ToTime( st.st_ctime, &info->ChangeTime );
1606             RtlSecondsSince1970ToTime( st.st_atime, &info->LastAccessTime );
1607             if (DIR_is_hidden_file( attr->ObjectName ))
1608                 info->FileAttributes |= FILE_ATTRIBUTE_HIDDEN;
1609         }
1610         RtlFreeAnsiString( &unix_name );
1611     }
1612     else WARN("%s not found (%x)\n", debugstr_us(attr->ObjectName), status );
1613     return status;
1614 }
1615
1616
1617 /******************************************************************************
1618  *              NtQueryAttributesFile   (NTDLL.@)
1619  *              ZwQueryAttributesFile   (NTDLL.@)
1620  */
1621 NTSTATUS WINAPI NtQueryAttributesFile( const OBJECT_ATTRIBUTES *attr, FILE_BASIC_INFORMATION *info )
1622 {
1623     FILE_NETWORK_OPEN_INFORMATION full_info;
1624     NTSTATUS status;
1625
1626     if (!(status = NtQueryFullAttributesFile( attr, &full_info )))
1627     {
1628         info->CreationTime.QuadPart   = full_info.CreationTime.QuadPart;
1629         info->LastAccessTime.QuadPart = full_info.LastAccessTime.QuadPart;
1630         info->LastWriteTime.QuadPart  = full_info.LastWriteTime.QuadPart;
1631         info->ChangeTime.QuadPart     = full_info.ChangeTime.QuadPart;
1632         info->FileAttributes          = full_info.FileAttributes;
1633     }
1634     return status;
1635 }
1636
1637
1638 #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__NetBSD__) || defined(__APPLE__)
1639 /* helper for FILE_GetDeviceInfo to hide some platform differences in fstatfs */
1640 static inline void get_device_info_fstatfs( FILE_FS_DEVICE_INFORMATION *info, const char *fstypename,
1641                                             size_t fstypesize, unsigned int flags )
1642 {
1643     if (!strncmp("cd9660", fstypename, fstypesize) ||
1644         !strncmp("udf", fstypename, fstypesize))
1645     {
1646         info->DeviceType = FILE_DEVICE_CD_ROM_FILE_SYSTEM;
1647         /* Don't assume read-only, let the mount options set it below */
1648         info->Characteristics |= FILE_REMOVABLE_MEDIA;
1649     }
1650     else if (!strncmp("nfs", fstypename, fstypesize) ||
1651              !strncmp("nwfs", fstypename, fstypesize) ||
1652              !strncmp("smbfs", fstypename, fstypesize) ||
1653              !strncmp("afpfs", fstypename, fstypesize))
1654     {
1655         info->DeviceType = FILE_DEVICE_NETWORK_FILE_SYSTEM;
1656         info->Characteristics |= FILE_REMOTE_DEVICE;
1657     }
1658     else if (!strncmp("procfs", fstypename, fstypesize))
1659         info->DeviceType = FILE_DEVICE_VIRTUAL_DISK;
1660     else
1661         info->DeviceType = FILE_DEVICE_DISK_FILE_SYSTEM;
1662
1663     if (flags & MNT_RDONLY)
1664         info->Characteristics |= FILE_READ_ONLY_DEVICE;
1665
1666     if (!(flags & MNT_LOCAL))
1667     {
1668         info->DeviceType = FILE_DEVICE_NETWORK_FILE_SYSTEM;
1669         info->Characteristics |= FILE_REMOTE_DEVICE;
1670     }
1671 }
1672 #endif
1673
1674 /******************************************************************************
1675  *              get_device_info
1676  *
1677  * Implementation of the FileFsDeviceInformation query for NtQueryVolumeInformationFile.
1678  */
1679 static NTSTATUS get_device_info( int fd, FILE_FS_DEVICE_INFORMATION *info )
1680 {
1681     struct stat st;
1682
1683     info->Characteristics = 0;
1684     if (fstat( fd, &st ) < 0) return FILE_GetNtStatus();
1685     if (S_ISCHR( st.st_mode ))
1686     {
1687         info->DeviceType = FILE_DEVICE_UNKNOWN;
1688 #ifdef linux
1689         switch(major(st.st_rdev))
1690         {
1691         case MEM_MAJOR:
1692             info->DeviceType = FILE_DEVICE_NULL;
1693             break;
1694         case TTY_MAJOR:
1695             info->DeviceType = FILE_DEVICE_SERIAL_PORT;
1696             break;
1697         case LP_MAJOR:
1698             info->DeviceType = FILE_DEVICE_PARALLEL_PORT;
1699             break;
1700         case SCSI_TAPE_MAJOR:
1701             info->DeviceType = FILE_DEVICE_TAPE;
1702             break;
1703         }
1704 #endif
1705     }
1706     else if (S_ISBLK( st.st_mode ))
1707     {
1708         info->DeviceType = FILE_DEVICE_DISK;
1709     }
1710     else if (S_ISFIFO( st.st_mode ) || S_ISSOCK( st.st_mode ))
1711     {
1712         info->DeviceType = FILE_DEVICE_NAMED_PIPE;
1713     }
1714     else  /* regular file or directory */
1715     {
1716 #if defined(linux) && defined(HAVE_FSTATFS)
1717         struct statfs stfs;
1718
1719         /* check for floppy disk */
1720         if (major(st.st_dev) == FLOPPY_MAJOR)
1721             info->Characteristics |= FILE_REMOVABLE_MEDIA;
1722
1723         if (fstatfs( fd, &stfs ) < 0) stfs.f_type = 0;
1724         switch (stfs.f_type)
1725         {
1726         case 0x9660:      /* iso9660 */
1727         case 0x9fa1:      /* supermount */
1728         case 0x15013346:  /* udf */
1729             info->DeviceType = FILE_DEVICE_CD_ROM_FILE_SYSTEM;
1730             info->Characteristics |= FILE_REMOVABLE_MEDIA|FILE_READ_ONLY_DEVICE;
1731             break;
1732         case 0x6969:  /* nfs */
1733         case 0x517B:  /* smbfs */
1734         case 0x564c:  /* ncpfs */
1735             info->DeviceType = FILE_DEVICE_NETWORK_FILE_SYSTEM;
1736             info->Characteristics |= FILE_REMOTE_DEVICE;
1737             break;
1738         case 0x01021994:  /* tmpfs */
1739         case 0x28cd3d45:  /* cramfs */
1740         case 0x1373:      /* devfs */
1741         case 0x9fa0:      /* procfs */
1742             info->DeviceType = FILE_DEVICE_VIRTUAL_DISK;
1743             break;
1744         default:
1745             info->DeviceType = FILE_DEVICE_DISK_FILE_SYSTEM;
1746             break;
1747         }
1748 #elif defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__APPLE__)
1749         struct statfs stfs;
1750
1751         if (fstatfs( fd, &stfs ) < 0)
1752             info->DeviceType = FILE_DEVICE_DISK_FILE_SYSTEM;
1753         else
1754             get_device_info_fstatfs( info, stfs.f_fstypename,
1755                                      sizeof(stfs.f_fstypename), stfs.f_flags );
1756 #elif defined(__NetBSD__)
1757         struct statvfs stfs;
1758
1759         if (fstatvfs( fd, &stfs) < 0)
1760             info->DeviceType = FILE_DEVICE_DISK_FILE_SYSTEM;
1761         else
1762             get_device_info_fstatfs( info, stfs.f_fstypename,
1763                                      sizeof(stfs.f_fstypename), stfs.f_flag );
1764 #elif defined(sun)
1765         /* Use dkio to work out device types */
1766         {
1767 # include <sys/dkio.h>
1768 # include <sys/vtoc.h>
1769             struct dk_cinfo dkinf;
1770             int retval = ioctl(fd, DKIOCINFO, &dkinf);
1771             if(retval==-1){
1772                 WARN("Unable to get disk device type information - assuming a disk like device\n");
1773                 info->DeviceType = FILE_DEVICE_DISK_FILE_SYSTEM;
1774             }
1775             switch (dkinf.dki_ctype)
1776             {
1777             case DKC_CDROM:
1778                 info->DeviceType = FILE_DEVICE_CD_ROM_FILE_SYSTEM;
1779                 info->Characteristics |= FILE_REMOVABLE_MEDIA|FILE_READ_ONLY_DEVICE;
1780                 break;
1781             case DKC_NCRFLOPPY:
1782             case DKC_SMSFLOPPY:
1783             case DKC_INTEL82072:
1784             case DKC_INTEL82077:
1785                 info->DeviceType = FILE_DEVICE_DISK_FILE_SYSTEM;
1786                 info->Characteristics |= FILE_REMOVABLE_MEDIA;
1787                 break;
1788             case DKC_MD:
1789                 info->DeviceType = FILE_DEVICE_VIRTUAL_DISK;
1790                 break;
1791             default:
1792                 info->DeviceType = FILE_DEVICE_DISK_FILE_SYSTEM;
1793             }
1794         }
1795 #else
1796         static int warned;
1797         if (!warned++) FIXME( "device info not properly supported on this platform\n" );
1798         info->DeviceType = FILE_DEVICE_DISK_FILE_SYSTEM;
1799 #endif
1800         info->Characteristics |= FILE_DEVICE_IS_MOUNTED;
1801     }
1802     return STATUS_SUCCESS;
1803 }
1804
1805
1806 /******************************************************************************
1807  *  NtQueryVolumeInformationFile                [NTDLL.@]
1808  *  ZwQueryVolumeInformationFile                [NTDLL.@]
1809  *
1810  * Get volume information for an open file handle.
1811  *
1812  * PARAMS
1813  *  handle      [I] Handle returned from ZwOpenFile() or ZwCreateFile()
1814  *  io          [O] Receives information about the operation on return
1815  *  buffer      [O] Destination for volume information
1816  *  length      [I] Size of FsInformation
1817  *  info_class  [I] Type of volume information to set
1818  *
1819  * RETURNS
1820  *  Success: 0. io and buffer are updated.
1821  *  Failure: An NTSTATUS error code describing the error.
1822  */
1823 NTSTATUS WINAPI NtQueryVolumeInformationFile( HANDLE handle, PIO_STATUS_BLOCK io,
1824                                               PVOID buffer, ULONG length,
1825                                               FS_INFORMATION_CLASS info_class )
1826 {
1827     int fd, needs_close;
1828     struct stat st;
1829
1830     if ((io->u.Status = server_get_unix_fd( handle, 0, &fd, &needs_close, NULL )) != STATUS_SUCCESS)
1831         return io->u.Status;
1832
1833     io->u.Status = STATUS_NOT_IMPLEMENTED;
1834     io->Information = 0;
1835
1836     switch( info_class )
1837     {
1838     case FileFsVolumeInformation:
1839         FIXME( "%p: volume info not supported\n", handle );
1840         break;
1841     case FileFsLabelInformation:
1842         FIXME( "%p: label info not supported\n", handle );
1843         break;
1844     case FileFsSizeInformation:
1845         if (length < sizeof(FILE_FS_SIZE_INFORMATION))
1846             io->u.Status = STATUS_BUFFER_TOO_SMALL;
1847         else
1848         {
1849             FILE_FS_SIZE_INFORMATION *info = buffer;
1850
1851             if (fstat( fd, &st ) < 0)
1852             {
1853                 io->u.Status = FILE_GetNtStatus();
1854                 break;
1855             }
1856             if (!S_ISREG(st.st_mode) && !S_ISDIR(st.st_mode))
1857             {
1858                 io->u.Status = STATUS_INVALID_DEVICE_REQUEST;
1859             }
1860             else
1861             {
1862                 /* Linux's fstatvfs is buggy */
1863 #if !defined(linux) || !defined(HAVE_FSTATFS)
1864                 struct statvfs stfs;
1865
1866                 if (fstatvfs( fd, &stfs ) < 0)
1867                 {
1868                     io->u.Status = FILE_GetNtStatus();
1869                     break;
1870                 }
1871                 info->BytesPerSector = stfs.f_frsize;
1872 #else
1873                 struct statfs stfs;
1874                 if (fstatfs( fd, &stfs ) < 0)
1875                 {
1876                     io->u.Status = FILE_GetNtStatus();
1877                     break;
1878                 }
1879                 info->BytesPerSector = stfs.f_bsize;
1880 #endif
1881                 info->TotalAllocationUnits.QuadPart = stfs.f_blocks;
1882                 info->AvailableAllocationUnits.QuadPart = stfs.f_bavail;
1883                 info->SectorsPerAllocationUnit = 1;
1884                 io->Information = sizeof(*info);
1885                 io->u.Status = STATUS_SUCCESS;
1886             }
1887         }
1888         break;
1889     case FileFsDeviceInformation:
1890         if (length < sizeof(FILE_FS_DEVICE_INFORMATION))
1891             io->u.Status = STATUS_BUFFER_TOO_SMALL;
1892         else
1893         {
1894             FILE_FS_DEVICE_INFORMATION *info = buffer;
1895
1896             if ((io->u.Status = get_device_info( fd, info )) == STATUS_SUCCESS)
1897                 io->Information = sizeof(*info);
1898         }
1899         break;
1900     case FileFsAttributeInformation:
1901         FIXME( "%p: attribute info not supported\n", handle );
1902         break;
1903     case FileFsControlInformation:
1904         FIXME( "%p: control info not supported\n", handle );
1905         break;
1906     case FileFsFullSizeInformation:
1907         FIXME( "%p: full size info not supported\n", handle );
1908         break;
1909     case FileFsObjectIdInformation:
1910         FIXME( "%p: object id info not supported\n", handle );
1911         break;
1912     case FileFsMaximumInformation:
1913         FIXME( "%p: maximum info not supported\n", handle );
1914         break;
1915     default:
1916         io->u.Status = STATUS_INVALID_PARAMETER;
1917         break;
1918     }
1919     if (needs_close) close( fd );
1920     return io->u.Status;
1921 }
1922
1923
1924 /******************************************************************
1925  *              NtFlushBuffersFile  (NTDLL.@)
1926  *
1927  * Flush any buffered data on an open file handle.
1928  *
1929  * PARAMS
1930  *  FileHandle         [I] Handle returned from ZwOpenFile() or ZwCreateFile()
1931  *  IoStatusBlock      [O] Receives information about the operation on return
1932  *
1933  * RETURNS
1934  *  Success: 0. IoStatusBlock is updated.
1935  *  Failure: An NTSTATUS error code describing the error.
1936  */
1937 NTSTATUS WINAPI NtFlushBuffersFile( HANDLE hFile, IO_STATUS_BLOCK* IoStatusBlock )
1938 {
1939     NTSTATUS ret;
1940     HANDLE hEvent = NULL;
1941
1942     SERVER_START_REQ( flush_file )
1943     {
1944         req->handle = hFile;
1945         ret = wine_server_call( req );
1946         hEvent = reply->event;
1947     }
1948     SERVER_END_REQ;
1949     if (!ret && hEvent)
1950     {
1951         ret = NtWaitForSingleObject( hEvent, FALSE, NULL );
1952         NtClose( hEvent );
1953     }
1954     return ret;
1955 }
1956
1957 /******************************************************************
1958  *              NtLockFile       (NTDLL.@)
1959  *
1960  *
1961  */
1962 NTSTATUS WINAPI NtLockFile( HANDLE hFile, HANDLE lock_granted_event,
1963                             PIO_APC_ROUTINE apc, void* apc_user,
1964                             PIO_STATUS_BLOCK io_status, PLARGE_INTEGER offset,
1965                             PLARGE_INTEGER count, ULONG* key, BOOLEAN dont_wait,
1966                             BOOLEAN exclusive )
1967 {
1968     NTSTATUS    ret;
1969     HANDLE      handle;
1970     BOOLEAN     async;
1971
1972     if (apc || io_status || key)
1973     {
1974         FIXME("Unimplemented yet parameter\n");
1975         return STATUS_NOT_IMPLEMENTED;
1976     }
1977
1978     for (;;)
1979     {
1980         SERVER_START_REQ( lock_file )
1981         {
1982             req->handle      = hFile;
1983             req->offset_low  = offset->u.LowPart;
1984             req->offset_high = offset->u.HighPart;
1985             req->count_low   = count->u.LowPart;
1986             req->count_high  = count->u.HighPart;
1987             req->shared      = !exclusive;
1988             req->wait        = !dont_wait;
1989             ret = wine_server_call( req );
1990             handle = reply->handle;
1991             async  = reply->overlapped;
1992         }
1993         SERVER_END_REQ;
1994         if (ret != STATUS_PENDING)
1995         {
1996             if (!ret && lock_granted_event) NtSetEvent(lock_granted_event, NULL);
1997             return ret;
1998         }
1999
2000         if (async)
2001         {
2002             FIXME( "Async I/O lock wait not implemented, might deadlock\n" );
2003             if (handle) NtClose( handle );
2004             return STATUS_PENDING;
2005         }
2006         if (handle)
2007         {
2008             NtWaitForSingleObject( handle, FALSE, NULL );
2009             NtClose( handle );
2010         }
2011         else
2012         {
2013             LARGE_INTEGER time;
2014
2015             /* Unix lock conflict, sleep a bit and retry */
2016             time.QuadPart = 100 * (ULONGLONG)10000;
2017             time.QuadPart = -time.QuadPart;
2018             NtDelayExecution( FALSE, &time );
2019         }
2020     }
2021 }
2022
2023
2024 /******************************************************************
2025  *              NtUnlockFile    (NTDLL.@)
2026  *
2027  *
2028  */
2029 NTSTATUS WINAPI NtUnlockFile( HANDLE hFile, PIO_STATUS_BLOCK io_status,
2030                               PLARGE_INTEGER offset, PLARGE_INTEGER count,
2031                               PULONG key )
2032 {
2033     NTSTATUS status;
2034
2035     TRACE( "%p %x%08x %x%08x\n",
2036            hFile, offset->u.HighPart, offset->u.LowPart, count->u.HighPart, count->u.LowPart );
2037
2038     if (io_status || key)
2039     {
2040         FIXME("Unimplemented yet parameter\n");
2041         return STATUS_NOT_IMPLEMENTED;
2042     }
2043
2044     SERVER_START_REQ( unlock_file )
2045     {
2046         req->handle      = hFile;
2047         req->offset_low  = offset->u.LowPart;
2048         req->offset_high = offset->u.HighPart;
2049         req->count_low   = count->u.LowPart;
2050         req->count_high  = count->u.HighPart;
2051         status = wine_server_call( req );
2052     }
2053     SERVER_END_REQ;
2054     return status;
2055 }
2056
2057 /******************************************************************
2058  *              NtCreateNamedPipeFile    (NTDLL.@)
2059  *
2060  *
2061  */
2062 NTSTATUS WINAPI NtCreateNamedPipeFile( PHANDLE handle, ULONG access,
2063                                        POBJECT_ATTRIBUTES attr, PIO_STATUS_BLOCK iosb,
2064                                        ULONG sharing, ULONG dispo, ULONG options,
2065                                        ULONG pipe_type, ULONG read_mode,
2066                                        ULONG completion_mode, ULONG max_inst,
2067                                        ULONG inbound_quota, ULONG outbound_quota,
2068                                        PLARGE_INTEGER timeout)
2069 {
2070     NTSTATUS    status;
2071     static const WCHAR leadin[] = {'\\','?','?','\\','P','I','P','E','\\'};
2072
2073     TRACE("(%p %x %s %p %x %d %x %d %d %d %d %d %d %p)\n",
2074           handle, access, debugstr_w(attr->ObjectName->Buffer), iosb, sharing, dispo,
2075           options, pipe_type, read_mode, completion_mode, max_inst, inbound_quota,
2076           outbound_quota, timeout);
2077
2078     if (attr->ObjectName->Length < sizeof(leadin) ||
2079         strncmpiW( attr->ObjectName->Buffer,
2080                    leadin, sizeof(leadin)/sizeof(leadin[0]) ))
2081         return STATUS_OBJECT_NAME_INVALID;
2082     /* assume we only get relative timeout, and storable in a DWORD as ms */
2083     if (timeout->QuadPart > 0 || (timeout->QuadPart / -10000) >> 32)
2084         FIXME("Wrong time %s\n", wine_dbgstr_longlong(timeout->QuadPart));
2085
2086     SERVER_START_REQ( create_named_pipe )
2087     {
2088         req->access  = access;
2089         req->attributes = (attr) ? attr->Attributes : 0;
2090         req->rootdir = attr ? attr->RootDirectory : 0;
2091         req->options = options;
2092         req->flags =
2093             (pipe_type) ? NAMED_PIPE_MESSAGE_STREAM_WRITE : 0 |
2094             (read_mode) ? NAMED_PIPE_MESSAGE_STREAM_READ  : 0 |
2095             (completion_mode) ? NAMED_PIPE_NONBLOCKING_MODE  : 0;
2096         req->maxinstances = max_inst;
2097         req->outsize = outbound_quota;
2098         req->insize  = inbound_quota;
2099         req->timeout = timeout->QuadPart / -10000;
2100         wine_server_add_data( req, attr->ObjectName->Buffer,
2101                               attr->ObjectName->Length );
2102         status = wine_server_call( req );
2103         if (!status) *handle = reply->handle;
2104     }
2105     SERVER_END_REQ;
2106     return status;
2107 }
2108
2109 /******************************************************************
2110  *              NtDeleteFile    (NTDLL.@)
2111  *
2112  *
2113  */
2114 NTSTATUS WINAPI NtDeleteFile( POBJECT_ATTRIBUTES ObjectAttributes )
2115 {
2116     NTSTATUS status;
2117     HANDLE hFile;
2118     IO_STATUS_BLOCK io;
2119
2120     TRACE("%p\n", ObjectAttributes);
2121     status = NtCreateFile( &hFile, GENERIC_READ | GENERIC_WRITE | DELETE,
2122                            ObjectAttributes, &io, NULL, 0,
2123                            FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE,
2124                            FILE_OPEN, FILE_DELETE_ON_CLOSE, NULL, 0 );
2125     if (status == STATUS_SUCCESS) status = NtClose(hFile);
2126     return status;
2127 }
2128
2129 /******************************************************************
2130  *              NtCancelIoFile    (NTDLL.@)
2131  *
2132  *
2133  */
2134 NTSTATUS WINAPI NtCancelIoFile( HANDLE hFile, PIO_STATUS_BLOCK io_status )
2135 {
2136     LARGE_INTEGER timeout;
2137
2138     TRACE("%p %p\n", hFile, io_status );
2139
2140     SERVER_START_REQ( cancel_async )
2141     {
2142         req->handle = hFile;
2143         wine_server_call( req );
2144     }
2145     SERVER_END_REQ;
2146     /* Let some APC be run, so that we can run the remaining APCs on hFile
2147      * either the cancelation of the pending one, but also the execution
2148      * of the queued APC, but not yet run. This is needed to ensure proper
2149      * clean-up of allocated data.
2150      */
2151     timeout.u.LowPart = timeout.u.HighPart = 0;
2152     return io_status->u.Status = NtDelayExecution( TRUE, &timeout );
2153 }
2154
2155 /******************************************************************************
2156  *  NtCreateMailslotFile        [NTDLL.@]
2157  *  ZwCreateMailslotFile        [NTDLL.@]
2158  *
2159  * PARAMS
2160  *  pHandle          [O] pointer to receive the handle created
2161  *  DesiredAccess    [I] access mode (read, write, etc)
2162  *  ObjectAttributes [I] fully qualified NT path of the mailslot
2163  *  IoStatusBlock    [O] receives completion status and other info
2164  *  CreateOptions    [I]
2165  *  MailslotQuota    [I]
2166  *  MaxMessageSize   [I]
2167  *  TimeOut          [I]
2168  *
2169  * RETURNS
2170  *  An NT status code
2171  */
2172 NTSTATUS WINAPI NtCreateMailslotFile(PHANDLE pHandle, ULONG DesiredAccess,
2173      POBJECT_ATTRIBUTES attr, PIO_STATUS_BLOCK IoStatusBlock,
2174      ULONG CreateOptions, ULONG MailslotQuota, ULONG MaxMessageSize,
2175      PLARGE_INTEGER TimeOut)
2176 {
2177     static const WCHAR leadin[] = {
2178         '\\','?','?','\\','M','A','I','L','S','L','O','T','\\'};
2179     NTSTATUS ret;
2180
2181     TRACE("%p %08x %p %p %08x %08x %08x %p\n",
2182               pHandle, DesiredAccess, attr, IoStatusBlock,
2183               CreateOptions, MailslotQuota, MaxMessageSize, TimeOut);
2184
2185     if (attr->ObjectName->Length < sizeof(leadin) ||
2186         strncmpiW( attr->ObjectName->Buffer,
2187                    leadin, sizeof(leadin)/sizeof(leadin[0]) ))
2188     {
2189         return STATUS_OBJECT_NAME_INVALID;
2190     }
2191
2192     SERVER_START_REQ( create_mailslot )
2193     {
2194         req->access = DesiredAccess;
2195         req->attributes = (attr) ? attr->Attributes : 0;
2196         req->rootdir = attr ? attr->RootDirectory : 0;
2197         req->max_msgsize = MaxMessageSize;
2198         req->read_timeout = (TimeOut->QuadPart <= 0) ? TimeOut->QuadPart / -10000 : -1;
2199         wine_server_add_data( req, attr->ObjectName->Buffer,
2200                               attr->ObjectName->Length );
2201         ret = wine_server_call( req );
2202         if( ret == STATUS_SUCCESS )
2203             *pHandle = reply->handle;
2204     }
2205     SERVER_END_REQ;
2206
2207     return ret;
2208 }