files/file.c

   1 /*
   2  * File handling functions
   3  *
   4  * Copyright 1993 John Burton
   5  * Copyright 1996 Alexandre Julliard
   6  *
   7  * TODO:
   8  *    Fix the CopyFileEx methods to implement the "extended" functionality.
   9  *    Right now, they simply call the CopyFile method.
  10  */
  11
  12 #include "config.h"
  13 #include "wine/port.h"
  14
  15 #include <assert.h>
  16 #include <ctype.h>
  17 #include <errno.h>
  18 #include <fcntl.h>
  19 #include <stdlib.h>
  20 #include <stdio.h>
  21 #include <string.h>
  22 #ifdef HAVE_SYS_ERRNO_H
  23 #include <sys/errno.h>
  24 #endif
  25 #include <sys/types.h>
  26 #include <sys/stat.h>
  27 #ifdef HAVE_SYS_MMAN_H
  28 #include <sys/mman.h>
  29 #endif
  30 #include <sys/time.h>
  31 #include <sys/poll.h>
  32 #include <time.h>
  33 #include <unistd.h>
  34 #include <utime.h>
  35
  36 #include "winerror.h"
  37 #include "windef.h"
  38 #include "winbase.h"
  39 #include "wine/winbase16.h"
  40 #include "drive.h"
  41 #include "file.h"
  42 #include "heap.h"
  43 #include "msdos.h"
  44 #include "wincon.h"
  45 #include "debugtools.h"
  46
  47 #include "wine/server.h"
  48
  49 DEFAULT_DEBUG_CHANNEL(file);
  50
  51 #if defined(MAP_ANONYMOUS) && !defined(MAP_ANON)
  52 #define MAP_ANON MAP_ANONYMOUS
  53 #endif
  54
  55 /* Size of per-process table of DOS handles */
  56 #define DOS_TABLE_SIZE 256
  57
  58 static HANDLE dos_handles[DOS_TABLE_SIZE];
  59
  60
  61 /***********************************************************************
  62  *              FILE_ConvertOFMode
  63  *
  64  * Convert OF_* mode into flags for CreateFile.
  65  */
  66 static void FILE_ConvertOFMode( INT mode, DWORD *access, DWORD *sharing )
  67 {
  68     switch(mode & 0x03)
  69     {
  70     case OF_READ:      *access = GENERIC_READ; break;
  71     case OF_WRITE:     *access = GENERIC_WRITE; break;
  72     case OF_READWRITE: *access = GENERIC_READ | GENERIC_WRITE; break;
  73     default:           *access = 0; break;
  74     }
  75     switch(mode & 0x70)
  76     {
  77     case OF_SHARE_EXCLUSIVE:  *sharing = 0; break;
  78     case OF_SHARE_DENY_WRITE: *sharing = FILE_SHARE_READ; break;
  79     case OF_SHARE_DENY_READ:  *sharing = FILE_SHARE_WRITE; break;
  80     case OF_SHARE_DENY_NONE:
  81     case OF_SHARE_COMPAT:
  82     default:                  *sharing = FILE_SHARE_READ | FILE_SHARE_WRITE; break;
  83     }
  84 }
  85
  86
  87 /***********************************************************************
  88  *              FILE_strcasecmp
  89  *
  90  * locale-independent case conversion for file I/O
  91  */
  92 int FILE_strcasecmp( const char *str1, const char *str2 )
  93 {
  94     for (;;)
  95     {
  96         int ret = FILE_toupper(*str1) - FILE_toupper(*str2);
  97         if (ret || !*str1) return ret;
  98         str1++;
  99         str2++;
 100     }
 101 }
 102
 103
 104 /***********************************************************************
 105  *              FILE_strncasecmp
 106  *
 107  * locale-independent case conversion for file I/O
 108  */
 109 int FILE_strncasecmp( const char *str1, const char *str2, int len )
 110 {
 111     int ret = 0;
 112     for ( ; len > 0; len--, str1++, str2++)
 113         if ((ret = FILE_toupper(*str1) - FILE_toupper(*str2)) || !*str1) break;
 114     return ret;
 115 }
 116
 117
 118 /***********************************************************************
 119  *           FILE_SetDosError
 120  *
 121  * Set the DOS error code from errno.
 122  */
 123 void FILE_SetDosError(void)
 124 {
 125     int save_errno = errno; /* errno gets overwritten by printf */
 126
 127     TRACE("errno = %d %s\n", errno, strerror(errno));
 128     switch (save_errno)
 129     {
 130     case EAGAIN:
 131         SetLastError( ERROR_SHARING_VIOLATION );
 132         break;
 133     case EBADF:
 134         SetLastError( ERROR_INVALID_HANDLE );
 135         break;
 136     case ENOSPC:
 137         SetLastError( ERROR_HANDLE_DISK_FULL );
 138         break;
 139     case EACCES:
 140     case EPERM:
 141     case EROFS:
 142         SetLastError( ERROR_ACCESS_DENIED );
 143         break;
 144     case EBUSY:
 145         SetLastError( ERROR_LOCK_VIOLATION );
 146         break;
 147     case ENOENT:
 148         SetLastError( ERROR_FILE_NOT_FOUND );
 149         break;
 150     case EISDIR:
 151         SetLastError( ERROR_CANNOT_MAKE );
 152         break;
 153     case ENFILE:
 154     case EMFILE:
 155         SetLastError( ERROR_NO_MORE_FILES );
 156         break;
 157     case EEXIST:
 158         SetLastError( ERROR_FILE_EXISTS );
 159         break;
 160     case EINVAL:
 161     case ESPIPE:
 162         SetLastError( ERROR_SEEK );
 163         break;
 164     case ENOTEMPTY:
 165         SetLastError( ERROR_DIR_NOT_EMPTY );
 166         break;
 167     case ENOEXEC:
 168         SetLastError( ERROR_BAD_FORMAT );
 169         break;
 170     default:
 171         WARN("unknown file error: %s\n", strerror(save_errno) );
 172         SetLastError( ERROR_GEN_FAILURE );
 173         break;
 174     }
 175     errno = save_errno;
 176 }
 177
 178
 179 /***********************************************************************
 180  *           FILE_DupUnixHandle
 181  *
 182  * Duplicate a Unix handle into a task handle.
 183  * Returns 0 on failure.
 184  */
 185 HANDLE FILE_DupUnixHandle( int fd, DWORD access, BOOL inherit )
 186 {
 187     HANDLE ret;
 188
 189     wine_server_send_fd( fd );
 190
 191     SERVER_START_REQ( alloc_file_handle )
 192     {
 193         req->access  = access;
 194         req->inherit = inherit;
 195         req->fd      = fd;
 196         wine_server_call( req );
 197         ret = reply->handle;
 198     }
 199     SERVER_END_REQ;
 200     return ret;
 201 }
 202
 203
 204 /***********************************************************************
 205  *           FILE_GetUnixHandleType
 206  *
 207  * Retrieve the Unix handle corresponding to a file handle.
 208  * Returns -1 on failure.
 209  */
 210 int FILE_GetUnixHandleType( HANDLE handle, DWORD access, DWORD *type )
 211 {
 212     int ret, fd = -1;
 213
 214     do
 215     {
 216         SERVER_START_REQ( get_handle_fd )
 217         {
 218             req->handle = handle;
 219             req->access = access;
 220             if (!(ret = wine_server_call_err( req )))
 221             {
 222                 fd = reply->fd;
 223             }
 224             if (type) *type = reply->type;
 225         }
 226         SERVER_END_REQ;
 227         if (ret) return -1;
 228
 229         if (fd == -1)  /* it wasn't in the cache, get it from the server */
 230             fd = wine_server_recv_fd( handle );
 231
 232     } while (fd == -2);  /* -2 means race condition, so restart from scratch */
 233
 234     if (fd != -1)
 235     {
 236         if ((fd = dup(fd)) == -1)
 237             SetLastError( ERROR_TOO_MANY_OPEN_FILES );
 238     }
 239     return fd;
 240 }
 241
 242 /***********************************************************************
 243  *           FILE_GetUnixHandle
 244  *
 245  * Retrieve the Unix handle corresponding to a file handle.
 246  * Returns -1 on failure.
 247  */
 248 int FILE_GetUnixHandle( HANDLE handle, DWORD access )
 249 {
 250     return FILE_GetUnixHandleType(handle, access, NULL);
 251 }
 252
 253 /*************************************************************************
 254  *              FILE_OpenConsole
 255  *
 256  * Open a handle to the current process console.
 257  * Returns 0 on failure.
 258  */
 259 static HANDLE FILE_OpenConsole( BOOL output, DWORD access, DWORD sharing, LPSECURITY_ATTRIBUTES sa )
 260 {
 261     HANDLE ret;
 262
 263     SERVER_START_REQ( open_console )
 264     {
 265         req->from    = output;
 266         req->access  = access;
 267         req->share   = sharing;
 268         req->inherit = (sa && (sa->nLength>=sizeof(*sa)) && sa->bInheritHandle);
 269         SetLastError(0);
 270         wine_server_call_err( req );
 271         ret = reply->handle;
 272     }
 273     SERVER_END_REQ;
 274     return ret;
 275 }
 276
 277
 278 /***********************************************************************
 279  *           FILE_CreateFile
 280  *
 281  * Implementation of CreateFile. Takes a Unix path name.
 282  * Returns 0 on failure.
 283  */
 284 HANDLE FILE_CreateFile( LPCSTR filename, DWORD access, DWORD sharing,
 285                         LPSECURITY_ATTRIBUTES sa, DWORD creation,
 286                         DWORD attributes, HANDLE template, BOOL fail_read_only,
 287                         UINT drive_type )
 288 {
 289     unsigned int err;
 290     HANDLE ret;
 291
 292     for (;;)
 293     {
 294         SERVER_START_REQ( create_file )
 295         {
 296             req->access     = access;
 297             req->inherit    = (sa && (sa->nLength>=sizeof(*sa)) && sa->bInheritHandle);
 298             req->sharing    = sharing;
 299             req->create     = creation;
 300             req->attrs      = attributes;
 301             req->drive_type = drive_type;
 302             wine_server_add_data( req, filename, strlen(filename) );
 303             SetLastError(0);
 304             err = wine_server_call( req );
 305             ret = reply->handle;
 306         }
 307         SERVER_END_REQ;
 308
 309         /* If write access failed, retry without GENERIC_WRITE */
 310
 311         if (!ret && !fail_read_only && (access & GENERIC_WRITE))
 312         {
 313             if ((err == STATUS_MEDIA_WRITE_PROTECTED) || (err == STATUS_ACCESS_DENIED))
 314             {
 315                 TRACE("Write access failed for file '%s', trying without "
 316                       "write access\n", filename);
 317                 access &= ~GENERIC_WRITE;
 318                 continue;
 319             }
 320         }
 321
 322         if (err) SetLastError( RtlNtStatusToDosError(err) );
 323
 324         if (!ret) WARN("Unable to create file '%s' (GLE %ld)\n", filename, GetLastError());
 325         return ret;
 326     }
 327 }
 328
 329
 330 /***********************************************************************
 331  *           FILE_CreateDevice
 332  *
 333  * Same as FILE_CreateFile but for a device
 334  * Returns 0 on failure.
 335  */
 336 HANDLE FILE_CreateDevice( int client_id, DWORD access, LPSECURITY_ATTRIBUTES sa )
 337 {
 338     HANDLE ret;
 339     SERVER_START_REQ( create_device )
 340     {
 341         req->access  = access;
 342         req->inherit = (sa && (sa->nLength>=sizeof(*sa)) && sa->bInheritHandle);
 343         req->id      = client_id;
 344         SetLastError(0);
 345         wine_server_call_err( req );
 346         ret = reply->handle;
 347     }
 348     SERVER_END_REQ;
 349     return ret;
 350 }
 351
 352 static HANDLE FILE_OpenPipe(LPCSTR name, DWORD access)
 353 {
 354     WCHAR buffer[MAX_PATH];
 355     HANDLE ret;
 356     DWORD len = 0;
 357
 358     if (name && !(len = MultiByteToWideChar( CP_ACP, 0, name, strlen(name), buffer, MAX_PATH )))
 359     {
 360         SetLastError( ERROR_FILENAME_EXCED_RANGE );
 361         return 0;
 362     }
 363     SERVER_START_REQ( open_named_pipe )
 364     {
 365         req->access = access;
 366         SetLastError(0);
 367         wine_server_add_data( req, buffer, len * sizeof(WCHAR) );
 368         wine_server_call_err( req );
 369         ret = reply->handle;
 370     }
 371     SERVER_END_REQ;
 372     TRACE("Returned %d\n",ret);
 373     return ret;
 374 }
 375
 376 /*************************************************************************
 377  * CreateFileA [KERNEL32.@]  Creates or opens a file or other object
 378  *
 379  * Creates or opens an object, and returns a handle that can be used to
 380  * access that object.
 381  *
 382  * PARAMS
 383  *
 384  * filename     [in] pointer to filename to be accessed
 385  * access       [in] access mode requested
 386  * sharing      [in] share mode
 387  * sa           [in] pointer to security attributes
 388  * creation     [in] how to create the file
 389  * attributes   [in] attributes for newly created file
 390  * template     [in] handle to file with extended attributes to copy
 391  *
 392  * RETURNS
 393  *   Success: Open handle to specified file
 394  *   Failure: INVALID_HANDLE_VALUE
 395  *
 396  * NOTES
 397  *  Should call SetLastError() on failure.
 398  *
 399  * BUGS
 400  *
 401  * Doesn't support character devices, template files, or a
 402  * lot of the 'attributes' flags yet.
 403  */
 404 HANDLE WINAPI CreateFileA( LPCSTR filename, DWORD access, DWORD sharing,
 405                               LPSECURITY_ATTRIBUTES sa, DWORD creation,
 406                               DWORD attributes, HANDLE template )
 407 {
 408     DOS_FULL_NAME full_name;
 409     HANDLE ret;
 410
 411     if (!filename)
 412     {
 413         SetLastError( ERROR_INVALID_PARAMETER );
 414         return INVALID_HANDLE_VALUE;
 415     }
 416     TRACE("%s %s%s%s%s%s%s%s\n",filename,
 417           ((access & GENERIC_READ)==GENERIC_READ)?"GENERIC_READ ":"",
 418           ((access & GENERIC_WRITE)==GENERIC_WRITE)?"GENERIC_WRITE ":"",
 419           (!access)?"QUERY_ACCESS ":"",
 420           ((sharing & FILE_SHARE_READ)==FILE_SHARE_READ)?"FILE_SHARE_READ ":"",
 421           ((sharing & FILE_SHARE_WRITE)==FILE_SHARE_WRITE)?"FILE_SHARE_WRITE ":"",
 422           ((sharing & FILE_SHARE_DELETE)==FILE_SHARE_DELETE)?"FILE_SHARE_DELETE ":"",
 423           (creation ==CREATE_NEW)?"CREATE_NEW":
 424           (creation ==CREATE_ALWAYS)?"CREATE_ALWAYS ":
 425           (creation ==OPEN_EXISTING)?"OPEN_EXISTING ":
 426           (creation ==OPEN_ALWAYS)?"OPEN_ALWAYS ":
 427           (creation ==TRUNCATE_EXISTING)?"TRUNCATE_EXISTING ":"");
 428
 429     /* If the name starts with '\\?\', ignore the first 4 chars. */
 430     if (!strncmp(filename, "\\\\?\\", 4))
 431     {
 432         filename += 4;
 433         if (!strncmp(filename, "UNC\\", 4))
 434         {
 435             FIXME("UNC name (%s) not supported.\n", filename );
 436             SetLastError( ERROR_PATH_NOT_FOUND );
 437             return INVALID_HANDLE_VALUE;
 438         }
 439     }
 440
 441     if (!strncmp(filename, "\\\\.\\", 4)) {
 442         if(!strncasecmp(&filename[4],"pipe\\",5))
 443         {
 444             TRACE("Opening a pipe: %s\n",filename);
 445             ret = FILE_OpenPipe(filename,access);
 446             goto done;
 447         }
 448         else if (!DOSFS_GetDevice( filename ))
 449         {
 450             ret = DEVICE_Open( filename+4, access, sa );
 451             goto done;
 452         }
 453         else
 454                 filename+=4; /* fall into DOSFS_Device case below */
 455     }
 456
 457     /* If the name still starts with '\\', it's a UNC name. */
 458     if (!strncmp(filename, "\\\\", 2))
 459     {
 460         FIXME("UNC name (%s) not supported.\n", filename );
 461         SetLastError( ERROR_PATH_NOT_FOUND );
 462         return INVALID_HANDLE_VALUE;
 463     }
 464
 465     /* If the name contains a DOS wild card (* or ?), do no create a file */
 466     if(strchr(filename,'*') || strchr(filename,'?'))
 467         return INVALID_HANDLE_VALUE;
 468
 469     /* Open a console for CONIN$ or CONOUT$ */
 470     if (!strcasecmp(filename, "CONIN$"))
 471     {
 472         ret = FILE_OpenConsole( FALSE, access, sharing, sa );
 473         goto done;
 474     }
 475     if (!strcasecmp(filename, "CONOUT$"))
 476     {
 477         ret = FILE_OpenConsole( TRUE, access, sharing, sa );
 478         goto done;
 479     }
 480
 481     if (DOSFS_GetDevice( filename ))
 482     {
 483         TRACE("opening device '%s'\n", filename );
 484
 485         if (!(ret = DOSFS_OpenDevice( filename, access, attributes, sa )))
 486         {
 487             /* Do not silence this please. It is a critical error. -MM */
 488             ERR("Couldn't open device '%s'!\n",filename);
 489             SetLastError( ERROR_FILE_NOT_FOUND );
 490         }
 491         goto done;
 492     }
 493
 494     /* check for filename, don't check for last entry if creating */
 495     if (!DOSFS_GetFullName( filename,
 496                             (creation == OPEN_EXISTING) ||
 497                             (creation == TRUNCATE_EXISTING),
 498                             &full_name )) {
 499         WARN("Unable to get full filename from '%s' (GLE %ld)\n",
 500              filename, GetLastError());
 501         return INVALID_HANDLE_VALUE;
 502     }
 503
 504     ret = FILE_CreateFile( full_name.long_name, access, sharing,
 505                            sa, creation, attributes, template,
 506                            DRIVE_GetFlags(full_name.drive) & DRIVE_FAIL_READ_ONLY,
 507                            GetDriveTypeA( full_name.short_name ) );
 508  done:
 509     if (!ret) ret = INVALID_HANDLE_VALUE;
 510     return ret;
 511 }
 512
 513
 514
 515 /*************************************************************************
 516  *              CreateFileW              (KERNEL32.@)
 517  */
 518 HANDLE WINAPI CreateFileW( LPCWSTR filename, DWORD access, DWORD sharing,
 519                               LPSECURITY_ATTRIBUTES sa, DWORD creation,
 520                               DWORD attributes, HANDLE template)
 521 {
 522     LPSTR afn = HEAP_strdupWtoA( GetProcessHeap(), 0, filename );
 523     HANDLE res = CreateFileA( afn, access, sharing, sa, creation, attributes, template );
 524     HeapFree( GetProcessHeap(), 0, afn );
 525     return res;
 526 }
 527
 528
 529 /***********************************************************************
 530  *           FILE_FillInfo
 531  *
 532  * Fill a file information from a struct stat.
 533  */
 534 static void FILE_FillInfo( struct stat *st, BY_HANDLE_FILE_INFORMATION *info )
 535 {
 536     if (S_ISDIR(st->st_mode))
 537         info->dwFileAttributes = FILE_ATTRIBUTE_DIRECTORY;
 538     else
 539         info->dwFileAttributes = FILE_ATTRIBUTE_ARCHIVE;
 540     if (!(st->st_mode & S_IWUSR))
 541         info->dwFileAttributes |= FILE_ATTRIBUTE_READONLY;
 542
 543     RtlSecondsSince1970ToTime( st->st_mtime, &info->ftCreationTime );
 544     RtlSecondsSince1970ToTime( st->st_mtime, &info->ftLastWriteTime );
 545     RtlSecondsSince1970ToTime( st->st_atime, &info->ftLastAccessTime );
 546
 547     info->dwVolumeSerialNumber = 0;  /* FIXME */
 548     info->nFileSizeHigh = 0;
 549     info->nFileSizeLow  = 0;
 550     if (!S_ISDIR(st->st_mode)) {
 551         info->nFileSizeHigh = st->st_size >> 32;
 552         info->nFileSizeLow  = st->st_size & 0xffffffff;
 553     }
 554     info->nNumberOfLinks = st->st_nlink;
 555     info->nFileIndexHigh = 0;
 556     info->nFileIndexLow  = st->st_ino;
 557 }
 558
 559
 560 /***********************************************************************
 561  *           FILE_Stat
 562  *
 563  * Stat a Unix path name. Return TRUE if OK.
 564  */
 565 BOOL FILE_Stat( LPCSTR unixName, BY_HANDLE_FILE_INFORMATION *info )
 566 {
 567     struct stat st;
 568
 569     if (lstat( unixName, &st ) == -1)
 570     {
 571         FILE_SetDosError();
 572         return FALSE;
 573     }
 574     if (!S_ISLNK(st.st_mode)) FILE_FillInfo( &st, info );
 575     else
 576     {
 577         /* do a "real" stat to find out
 578            about the type of the symlink destination */
 579         if (stat( unixName, &st ) == -1)
 580         {
 581             FILE_SetDosError();
 582             return FALSE;
 583         }
 584         FILE_FillInfo( &st, info );
 585         info->dwFileAttributes |= FILE_ATTRIBUTE_SYMLINK;
 586     }
 587     return TRUE;
 588 }
 589
 590
 591 /***********************************************************************
 592  *             GetFileInformationByHandle   (KERNEL32.@)
 593  */
 594 DWORD WINAPI GetFileInformationByHandle( HANDLE hFile,
 595                                          BY_HANDLE_FILE_INFORMATION *info )
 596 {
 597     DWORD ret;
 598     if (!info) return 0;
 599
 600     SERVER_START_REQ( get_file_info )
 601     {
 602         req->handle = hFile;
 603         if ((ret = !wine_server_call_err( req )))
 604         {
 605             /* FIXME: which file types are supported ?
 606              * Serial ports (FILE_TYPE_CHAR) are not,
 607              * and MSDN also says that pipes are not supported.
 608              * FILE_TYPE_REMOTE seems to be supported according to
 609              * MSDN q234741.txt */
 610             if ((reply->type == FILE_TYPE_DISK) ||  (reply->type == FILE_TYPE_REMOTE))
 611             {
 612                 RtlSecondsSince1970ToTime( reply->write_time, &info->ftCreationTime );
 613                 RtlSecondsSince1970ToTime( reply->write_time, &info->ftLastWriteTime );
 614                 RtlSecondsSince1970ToTime( reply->access_time, &info->ftLastAccessTime );
 615                 info->dwFileAttributes     = reply->attr;
 616                 info->dwVolumeSerialNumber = reply->serial;
 617                 info->nFileSizeHigh        = reply->size_high;
 618                 info->nFileSizeLow         = reply->size_low;
 619                 info->nNumberOfLinks       = reply->links;
 620                 info->nFileIndexHigh       = reply->index_high;
 621                 info->nFileIndexLow        = reply->index_low;
 622             }
 623             else
 624             {
 625                 SetLastError(ERROR_NOT_SUPPORTED);
 626                 ret = 0;
 627             }
 628         }
 629     }
 630     SERVER_END_REQ;
 631     return ret;
 632 }
 633
 634
 635 /**************************************************************************
 636  *           GetFileAttributes   (KERNEL.420)
 637  */
 638 DWORD WINAPI GetFileAttributes16( LPCSTR name )
 639 {
 640     return GetFileAttributesA( name );
 641 }
 642
 643
 644 /**************************************************************************
 645  *           GetFileAttributesA   (KERNEL32.@)
 646  */
 647 DWORD WINAPI GetFileAttributesA( LPCSTR name )
 648 {
 649     DOS_FULL_NAME full_name;
 650     BY_HANDLE_FILE_INFORMATION info;
 651
 652     if (name == NULL)
 653     {
 654         SetLastError( ERROR_INVALID_PARAMETER );
 655         return -1;
 656     }
 657     if (!DOSFS_GetFullName( name, TRUE, &full_name) )
 658         return -1;
 659     if (!FILE_Stat( full_name.long_name, &info )) return -1;
 660     return info.dwFileAttributes;
 661 }
 662
 663
 664 /**************************************************************************
 665  *           GetFileAttributesW   (KERNEL32.@)
 666  */
 667 DWORD WINAPI GetFileAttributesW( LPCWSTR name )
 668 {
 669     LPSTR nameA = HEAP_strdupWtoA( GetProcessHeap(), 0, name );
 670     DWORD res = GetFileAttributesA( nameA );
 671     HeapFree( GetProcessHeap(), 0, nameA );
 672     return res;
 673 }
 674
 675
 676 /***********************************************************************
 677  *           GetFileSize   (KERNEL32.@)
 678  */
 679 DWORD WINAPI GetFileSize( HANDLE hFile, LPDWORD filesizehigh )
 680 {
 681     BY_HANDLE_FILE_INFORMATION info;
 682     if (!GetFileInformationByHandle( hFile, &info )) return -1;
 683     if (filesizehigh) *filesizehigh = info.nFileSizeHigh;
 684     return info.nFileSizeLow;
 685 }
 686
 687
 688 /***********************************************************************
 689  *           GetFileTime   (KERNEL32.@)
 690  */
 691 BOOL WINAPI GetFileTime( HANDLE hFile, FILETIME *lpCreationTime,
 692                            FILETIME *lpLastAccessTime,
 693                            FILETIME *lpLastWriteTime )
 694 {
 695     BY_HANDLE_FILE_INFORMATION info;
 696     if (!GetFileInformationByHandle( hFile, &info )) return FALSE;
 697     if (lpCreationTime)   *lpCreationTime   = info.ftCreationTime;
 698     if (lpLastAccessTime) *lpLastAccessTime = info.ftLastAccessTime;
 699     if (lpLastWriteTime)  *lpLastWriteTime  = info.ftLastWriteTime;
 700     return TRUE;
 701 }
 702
 703 /***********************************************************************
 704  *           CompareFileTime   (KERNEL32.@)
 705  */
 706 INT WINAPI CompareFileTime( LPFILETIME x, LPFILETIME y )
 707 {
 708         if (!x || !y) return -1;
 709
 710         if (x->dwHighDateTime > y->dwHighDateTime)
 711                 return 1;
 712         if (x->dwHighDateTime < y->dwHighDateTime)
 713                 return -1;
 714         if (x->dwLowDateTime > y->dwLowDateTime)
 715                 return 1;
 716         if (x->dwLowDateTime < y->dwLowDateTime)
 717                 return -1;
 718         return 0;
 719 }
 720
 721 /***********************************************************************
 722  *           FILE_GetTempFileName : utility for GetTempFileName
 723  */
 724 static UINT FILE_GetTempFileName( LPCSTR path, LPCSTR prefix, UINT unique,
 725                                   LPSTR buffer, BOOL isWin16 )
 726 {
 727     static UINT unique_temp;
 728     DOS_FULL_NAME full_name;
 729     int i;
 730     LPSTR p;
 731     UINT num;
 732
 733     if ( !path || !prefix || !buffer ) return 0;
 734
 735     if (!unique_temp) unique_temp = time(NULL) & 0xffff;
 736     num = unique ? (unique & 0xffff) : (unique_temp++ & 0xffff);
 737
 738     strcpy( buffer, path );
 739     p = buffer + strlen(buffer);
 740
 741     /* add a \, if there isn't one and path is more than just the drive letter ... */
 742     if ( !((strlen(buffer) == 2) && (buffer[1] == ':'))
 743         && ((p == buffer) || (p[-1] != '\\'))) *p++ = '\\';
 744
 745     if (isWin16) *p++ = '~';
 746     for (i = 3; (i > 0) && (*prefix); i--) *p++ = *prefix++;
 747     sprintf( p, "%04x.tmp", num );
 748
 749     /* Now try to create it */
 750
 751     if (!unique)
 752     {
 753         do
 754         {
 755             HFILE handle = CreateFileA( buffer, GENERIC_WRITE, 0, NULL,
 756                                             CREATE_NEW, FILE_ATTRIBUTE_NORMAL, 0 );
 757             if (handle != INVALID_HANDLE_VALUE)
 758             {  /* We created it */
 759                 TRACE("created %s\n",
 760                               buffer);
 761                 CloseHandle( handle );
 762                 break;
 763             }
 764             if (GetLastError() != ERROR_FILE_EXISTS)
 765                 break;  /* No need to go on */
 766             num++;
 767             sprintf( p, "%04x.tmp", num );
 768         } while (num != (unique & 0xffff));
 769     }
 770
 771     /* Get the full path name */
 772
 773     if (DOSFS_GetFullName( buffer, FALSE, &full_name ))
 774     {
 775         /* Check if we have write access in the directory */
 776         if ((p = strrchr( full_name.long_name, '/' ))) *p = '\0';
 777         if (access( full_name.long_name, W_OK ) == -1)
 778             WARN("returns '%s', which doesn't seem to be writeable.\n",
 779                  buffer);
 780     }
 781     TRACE("returning %s\n", buffer );
 782     return unique ? unique : num;
 783 }
 784
 785
 786 /***********************************************************************
 787  *           GetTempFileNameA   (KERNEL32.@)
 788  */
 789 UINT WINAPI GetTempFileNameA( LPCSTR path, LPCSTR prefix, UINT unique,
 790                                   LPSTR buffer)
 791 {
 792     return FILE_GetTempFileName(path, prefix, unique, buffer, FALSE);
 793 }
 794
 795 /***********************************************************************
 796  *           GetTempFileNameW   (KERNEL32.@)
 797  */
 798 UINT WINAPI GetTempFileNameW( LPCWSTR path, LPCWSTR prefix, UINT unique,
 799                                   LPWSTR buffer )
 800 {
 801     LPSTR   patha,prefixa;
 802     char    buffera[144];
 803     UINT  ret;
 804
 805     if (!path) return 0;
 806     patha   = HEAP_strdupWtoA( GetProcessHeap(), 0, path );
 807     prefixa = HEAP_strdupWtoA( GetProcessHeap(), 0, prefix );
 808     ret     = FILE_GetTempFileName( patha, prefixa, unique, buffera, FALSE );
 809     MultiByteToWideChar( CP_ACP, 0, buffera, -1, buffer, MAX_PATH );
 810     HeapFree( GetProcessHeap(), 0, patha );
 811     HeapFree( GetProcessHeap(), 0, prefixa );
 812     return ret;
 813 }
 814
 815
 816 /***********************************************************************
 817  *           GetTempFileName   (KERNEL.97)
 818  */
 819 UINT16 WINAPI GetTempFileName16( BYTE drive, LPCSTR prefix, UINT16 unique,
 820                                  LPSTR buffer )
 821 {
 822     char temppath[144];
 823
 824     if (!(drive & ~TF_FORCEDRIVE)) /* drive 0 means current default drive */
 825         drive |= DRIVE_GetCurrentDrive() + 'A';
 826
 827     if ((drive & TF_FORCEDRIVE) &&
 828         !DRIVE_IsValid( toupper(drive & ~TF_FORCEDRIVE) - 'A' ))
 829     {
 830         drive &= ~TF_FORCEDRIVE;
 831         WARN("invalid drive %d specified\n", drive );
 832     }
 833
 834     if (drive & TF_FORCEDRIVE)
 835         sprintf(temppath,"%c:", drive & ~TF_FORCEDRIVE );
 836     else
 837         GetTempPathA( 132, temppath );
 838     return (UINT16)FILE_GetTempFileName( temppath, prefix, unique, buffer, TRUE );
 839 }
 840
 841 /***********************************************************************
 842  *           FILE_DoOpenFile
 843  *
 844  * Implementation of OpenFile16() and OpenFile32().
 845  */
 846 static HFILE FILE_DoOpenFile( LPCSTR name, OFSTRUCT *ofs, UINT mode,
 847                                 BOOL win32 )
 848 {
 849     HFILE hFileRet;
 850     FILETIME filetime;
 851     WORD filedatetime[2];
 852     DOS_FULL_NAME full_name;
 853     DWORD access, sharing;
 854     char *p;
 855
 856     if (!ofs) return HFILE_ERROR;
 857
 858     TRACE("%s %s %s %s%s%s%s%s%s%s%s%s\n",name,
 859           ((mode & 0x3 )==OF_READ)?"OF_READ":
 860           ((mode & 0x3 )==OF_WRITE)?"OF_WRITE":
 861           ((mode & 0x3 )==OF_READWRITE)?"OF_READWRITE":"unknown",
 862           ((mode & 0x70 )==OF_SHARE_COMPAT)?"OF_SHARE_COMPAT":
 863           ((mode & 0x70 )==OF_SHARE_DENY_NONE)?"OF_SHARE_DENY_NONE":
 864           ((mode & 0x70 )==OF_SHARE_DENY_READ)?"OF_SHARE_DENY_READ":
 865           ((mode & 0x70 )==OF_SHARE_DENY_WRITE)?"OF_SHARE_DENY_WRITE":
 866           ((mode & 0x70 )==OF_SHARE_EXCLUSIVE)?"OF_SHARE_EXCLUSIVE":"unknown",
 867           ((mode & OF_PARSE )==OF_PARSE)?"OF_PARSE ":"",
 868           ((mode & OF_DELETE )==OF_DELETE)?"OF_DELETE ":"",
 869           ((mode & OF_VERIFY )==OF_VERIFY)?"OF_VERIFY ":"",
 870           ((mode & OF_SEARCH )==OF_SEARCH)?"OF_SEARCH ":"",
 871           ((mode & OF_CANCEL )==OF_CANCEL)?"OF_CANCEL ":"",
 872           ((mode & OF_CREATE )==OF_CREATE)?"OF_CREATE ":"",
 873           ((mode & OF_PROMPT )==OF_PROMPT)?"OF_PROMPT ":"",
 874           ((mode & OF_EXIST )==OF_EXIST)?"OF_EXIST ":"",
 875           ((mode & OF_REOPEN )==OF_REOPEN)?"OF_REOPEN ":""
 876           );
 877
 878
 879     ofs->cBytes = sizeof(OFSTRUCT);
 880     ofs->nErrCode = 0;
 881     if (mode & OF_REOPEN) name = ofs->szPathName;
 882
 883     if (!name) {
 884         ERR("called with `name' set to NULL ! Please debug.\n");
 885         return HFILE_ERROR;
 886     }
 887
 888     TRACE("%s %04x\n", name, mode );
 889
 890     /* the watcom 10.6 IDE relies on a valid path returned in ofs->szPathName
 891        Are there any cases where getting the path here is wrong?
 892        Uwe Bonnes 1997 Apr 2 */
 893     if (!GetFullPathNameA( name, sizeof(ofs->szPathName),
 894                              ofs->szPathName, NULL )) goto error;
 895     FILE_ConvertOFMode( mode, &access, &sharing );
 896
 897     /* OF_PARSE simply fills the structure */
 898
 899     if (mode & OF_PARSE)
 900     {
 901         ofs->fFixedDisk = (GetDriveType16( ofs->szPathName[0]-'A' )
 902                            != DRIVE_REMOVABLE);
 903         TRACE("(%s): OF_PARSE, res = '%s'\n",
 904                       name, ofs->szPathName );
 905         return 0;
 906     }
 907
 908     /* OF_CREATE is completely different from all other options, so
 909        handle it first */
 910
 911     if (mode & OF_CREATE)
 912     {
 913         if ((hFileRet = CreateFileA( name, GENERIC_READ | GENERIC_WRITE,
 914                                        sharing, NULL, CREATE_ALWAYS,
 915                                        FILE_ATTRIBUTE_NORMAL, 0 ))== INVALID_HANDLE_VALUE)
 916             goto error;
 917         goto success;
 918     }
 919
 920     /* If OF_SEARCH is set, ignore the given path */
 921
 922     if ((mode & OF_SEARCH) && !(mode & OF_REOPEN))
 923     {
 924         /* First try the file name as is */
 925         if (DOSFS_GetFullName( name, TRUE, &full_name )) goto found;
 926         /* Now remove the path */
 927         if (name[0] && (name[1] == ':')) name += 2;
 928         if ((p = strrchr( name, '\\' ))) name = p + 1;
 929         if ((p = strrchr( name, '/' ))) name = p + 1;
 930         if (!name[0]) goto not_found;
 931     }
 932
 933     /* Now look for the file */
 934
 935     if (!DIR_SearchPath( NULL, name, NULL, &full_name, win32 )) goto not_found;
 936
 937 found:
 938     TRACE("found %s = %s\n",
 939                   full_name.long_name, full_name.short_name );
 940     lstrcpynA( ofs->szPathName, full_name.short_name,
 941                  sizeof(ofs->szPathName) );
 942
 943     if (mode & OF_SHARE_EXCLUSIVE)
 944       /* Some InstallShield version uses OF_SHARE_EXCLUSIVE
 945          on the file <tempdir>/_ins0432._mp to determine how
 946          far installation has proceeded.
 947          _ins0432._mp is an executable and while running the
 948          application expects the open with OF_SHARE_ to fail*/
 949       /* Probable FIXME:
 950          As our loader closes the files after loading the executable,
 951          we can't find the running executable with FILE_InUse.
 952          The loader should keep the file open, as Windows does that, too.
 953        */
 954       {
 955         char *last = strrchr(full_name.long_name,'/');
 956         if (!last)
 957           last = full_name.long_name - 1;
 958         if (GetModuleHandle16(last+1))
 959           {
 960             TRACE("Denying shared open for %s\n",full_name.long_name);
 961             return HFILE_ERROR;
 962           }
 963       }
 964
 965     if (mode & OF_DELETE)
 966     {
 967         if (unlink( full_name.long_name ) == -1) goto not_found;
 968         TRACE("(%s): OF_DELETE return = OK\n", name);
 969         return 1;
 970     }
 971
 972     hFileRet = FILE_CreateFile( full_name.long_name, access, sharing,
 973                                 NULL, OPEN_EXISTING, 0, 0,
 974                                 DRIVE_GetFlags(full_name.drive) & DRIVE_FAIL_READ_ONLY,
 975                                 GetDriveTypeA( full_name.short_name ) );
 976     if (!hFileRet) goto not_found;
 977
 978     GetFileTime( hFileRet, NULL, NULL, &filetime );
 979     FileTimeToDosDateTime( &filetime, &filedatetime[0], &filedatetime[1] );
 980     if ((mode & OF_VERIFY) && (mode & OF_REOPEN))
 981     {
 982         if (memcmp( ofs->reserved, filedatetime, sizeof(ofs->reserved) ))
 983         {
 984             CloseHandle( hFileRet );
 985             WARN("(%s): OF_VERIFY failed\n", name );
 986             /* FIXME: what error here? */
 987             SetLastError( ERROR_FILE_NOT_FOUND );
 988             goto error;
 989         }
 990     }
 991     memcpy( ofs->reserved, filedatetime, sizeof(ofs->reserved) );
 992
 993 success:  /* We get here if the open was successful */
 994     TRACE("(%s): OK, return = %d\n", name, hFileRet );
 995     if (win32)
 996     {
 997         if (mode & OF_EXIST) /* Return the handle, but close it first */
 998             CloseHandle( hFileRet );
 999     }
1000     else
1001     {
1002         hFileRet = Win32HandleToDosFileHandle( hFileRet );
1003         if (hFileRet == HFILE_ERROR16) goto error;
1004         if (mode & OF_EXIST) /* Return the handle, but close it first */
1005             _lclose16( hFileRet );
1006     }
1007     return hFileRet;
1008
1009 not_found:  /* We get here if the file does not exist */
1010     WARN("'%s' not found or sharing violation\n", name );
1011     SetLastError( ERROR_FILE_NOT_FOUND );
1012     /* fall through */
1013
1014 error:  /* We get here if there was an error opening the file */
1015     ofs->nErrCode = GetLastError();
1016     WARN("(%s): return = HFILE_ERROR error= %d\n",
1017                   name,ofs->nErrCode );
1018     return HFILE_ERROR;
1019 }
1020
1021
1022 /***********************************************************************
1023  *           OpenFile   (KERNEL.74)
1024  *           OpenFileEx (KERNEL.360)
1025  */
1026 HFILE16 WINAPI OpenFile16( LPCSTR name, OFSTRUCT *ofs, UINT16 mode )
1027 {
1028     return FILE_DoOpenFile( name, ofs, mode, FALSE );
1029 }
1030
1031
1032 /***********************************************************************
1033  *           OpenFile   (KERNEL32.@)
1034  */
1035 HFILE WINAPI OpenFile( LPCSTR name, OFSTRUCT *ofs, UINT mode )
1036 {
1037     return FILE_DoOpenFile( name, ofs, mode, TRUE );
1038 }
1039
1040
1041 /***********************************************************************
1042  *           FILE_InitProcessDosHandles
1043  *
1044  * Allocates the default DOS handles for a process. Called either by
1045  * Win32HandleToDosFileHandle below or by the DOSVM stuff.
1046  */
1047 static void FILE_InitProcessDosHandles( void )
1048 {
1049     dos_handles[0] = GetStdHandle(STD_INPUT_HANDLE);
1050     dos_handles[1] = GetStdHandle(STD_OUTPUT_HANDLE);
1051     dos_handles[2] = GetStdHandle(STD_ERROR_HANDLE);
1052     dos_handles[3] = GetStdHandle(STD_ERROR_HANDLE);
1053     dos_handles[4] = GetStdHandle(STD_ERROR_HANDLE);
1054 }
1055
1056 /***********************************************************************
1057  *           Win32HandleToDosFileHandle   (KERNEL32.21)
1058  *
1059  * Allocate a DOS handle for a Win32 handle. The Win32 handle is no
1060  * longer valid after this function (even on failure).
1061  *
1062  * Note: this is not exactly right, since on Win95 the Win32 handles
1063  *       are on top of DOS handles and we do it the other way
1064  *       around. Should be good enough though.
1065  */
1066 HFILE WINAPI Win32HandleToDosFileHandle( HANDLE handle )
1067 {
1068     int i;
1069
1070     if (!handle || (handle == INVALID_HANDLE_VALUE))
1071         return HFILE_ERROR;
1072
1073     for (i = 5; i < DOS_TABLE_SIZE; i++)
1074         if (!dos_handles[i])
1075         {
1076             dos_handles[i] = handle;
1077             TRACE("Got %d for h32 %d\n", i, handle );
1078             return (HFILE)i;
1079         }
1080     CloseHandle( handle );
1081     SetLastError( ERROR_TOO_MANY_OPEN_FILES );
1082     return HFILE_ERROR;
1083 }
1084
1085
1086 /***********************************************************************
1087  *           DosFileHandleToWin32Handle   (KERNEL32.20)
1088  *
1089  * Return the Win32 handle for a DOS handle.
1090  *
1091  * Note: this is not exactly right, since on Win95 the Win32 handles
1092  *       are on top of DOS handles and we do it the other way
1093  *       around. Should be good enough though.
1094  */
1095 HANDLE WINAPI DosFileHandleToWin32Handle( HFILE handle )
1096 {
1097     HFILE16 hfile = (HFILE16)handle;
1098     if (hfile < 5 && !dos_handles[hfile]) FILE_InitProcessDosHandles();
1099     if ((hfile >= DOS_TABLE_SIZE) || !dos_handles[hfile])
1100     {
1101         SetLastError( ERROR_INVALID_HANDLE );
1102         return INVALID_HANDLE_VALUE;
1103     }
1104     return dos_handles[hfile];
1105 }
1106
1107
1108 /***********************************************************************
1109  *           DisposeLZ32Handle   (KERNEL32.22)
1110  *
1111  * Note: this is not entirely correct, we should only close the
1112  *       32-bit handle and not the 16-bit one, but we cannot do
1113  *       this because of the way our DOS handles are implemented.
1114  *       It shouldn't break anything though.
1115  */
1116 void WINAPI DisposeLZ32Handle( HANDLE handle )
1117 {
1118     int i;
1119
1120     if (!handle || (handle == INVALID_HANDLE_VALUE)) return;
1121
1122     for (i = 5; i < DOS_TABLE_SIZE; i++)
1123         if (dos_handles[i] == handle)
1124         {
1125             dos_handles[i] = 0;
1126             CloseHandle( handle );
1127             break;
1128         }
1129 }
1130
1131
1132 /***********************************************************************
1133  *           FILE_Dup2
1134  *
1135  * dup2() function for DOS handles.
1136  */
1137 HFILE16 FILE_Dup2( HFILE16 hFile1, HFILE16 hFile2 )
1138 {
1139     HANDLE new_handle;
1140
1141     if (hFile1 < 5 && !dos_handles[hFile1]) FILE_InitProcessDosHandles();
1142
1143     if ((hFile1 >= DOS_TABLE_SIZE) || (hFile2 >= DOS_TABLE_SIZE) || !dos_handles[hFile1])
1144     {
1145         SetLastError( ERROR_INVALID_HANDLE );
1146         return HFILE_ERROR16;
1147     }
1148     if (hFile2 < 5)
1149     {
1150         FIXME("stdio handle closed, need proper conversion\n" );
1151         SetLastError( ERROR_INVALID_HANDLE );
1152         return HFILE_ERROR16;
1153     }
1154     if (!DuplicateHandle( GetCurrentProcess(), dos_handles[hFile1],
1155                           GetCurrentProcess(), &new_handle,
1156                           0, FALSE, DUPLICATE_SAME_ACCESS ))
1157         return HFILE_ERROR16;
1158     if (dos_handles[hFile2]) CloseHandle( dos_handles[hFile2] );
1159     dos_handles[hFile2] = new_handle;
1160     return hFile2;
1161 }
1162
1163
1164 /***********************************************************************
1165  *           _lclose   (KERNEL.81)
1166  */
1167 HFILE16 WINAPI _lclose16( HFILE16 hFile )
1168 {
1169     if (hFile < 5)
1170     {
1171         FIXME("stdio handle closed, need proper conversion\n" );
1172         SetLastError( ERROR_INVALID_HANDLE );
1173         return HFILE_ERROR16;
1174     }
1175     if ((hFile >= DOS_TABLE_SIZE) || !dos_handles[hFile])
1176     {
1177         SetLastError( ERROR_INVALID_HANDLE );
1178         return HFILE_ERROR16;
1179     }
1180     TRACE("%d (handle32=%d)\n", hFile, dos_handles[hFile] );
1181     CloseHandle( dos_handles[hFile] );
1182     dos_handles[hFile] = 0;
1183     return 0;
1184 }
1185
1186
1187 /***********************************************************************
1188  *           _lclose   (KERNEL32.@)
1189  */
1190 HFILE WINAPI _lclose( HFILE hFile )
1191 {
1192     TRACE("handle %d\n", hFile );
1193     return CloseHandle( hFile ) ? 0 : HFILE_ERROR;
1194 }
1195
1196 /***********************************************************************
1197  *              GetOverlappedResult     (KERNEL32.@)
1198  *
1199  * Check the result of an Asynchronous data transfer from a file.
1200  *
1201  * RETURNS
1202  *   TRUE on success
1203  *   FALSE on failure
1204  *
1205  *  If successful (and relevant) lpTransferred will hold the number of
1206  *   bytes transferred during the async operation.
1207  *
1208  * BUGS
1209  *
1210  * Currently only works for WaitCommEvent, ReadFile, WriteFile
1211  *   with communications ports.
1212  *
1213  */
1214 BOOL WINAPI GetOverlappedResult(
1215     HANDLE hFile,              /* [in] handle of file to check on */
1216     LPOVERLAPPED lpOverlapped, /* [in/out] pointer to overlapped  */
1217     LPDWORD lpTransferred,     /* [in/out] number of bytes transferred  */
1218     BOOL bWait                 /* [in] wait for the transfer to complete ? */
1219 ) {
1220     DWORD r;
1221
1222     TRACE("(%d %p %p %x)\n", hFile, lpOverlapped, lpTransferred, bWait);
1223
1224     if(lpOverlapped==NULL)
1225     {
1226         ERR("lpOverlapped was null\n");
1227         return FALSE;
1228     }
1229     if(!lpOverlapped->hEvent)
1230     {
1231         ERR("lpOverlapped->hEvent was null\n");
1232         return FALSE;
1233     }
1234
1235     do {
1236         TRACE("waiting on %p\n",lpOverlapped);
1237         r = WaitForSingleObjectEx(lpOverlapped->hEvent, bWait?INFINITE:0, TRUE);
1238         TRACE("wait on %p returned %ld\n",lpOverlapped,r);
1239     } while (r==STATUS_USER_APC);
1240
1241     if(lpTransferred)
1242         *lpTransferred = lpOverlapped->InternalHigh;
1243
1244     SetLastError(lpOverlapped->Internal);
1245
1246     return (r==WAIT_OBJECT_0);
1247 }
1248
1249
1250 /***********************************************************************
1251  *              FILE_StartAsync                (INTERNAL)
1252  *
1253  * type==ASYNC_TYPE_NONE means cancel the indicated overlapped operation
1254  * lpOverlapped==NULL means all overlappeds match
1255  */
1256 BOOL FILE_StartAsync(HANDLE hFile, LPOVERLAPPED lpOverlapped, DWORD type, DWORD count, DWORD status)
1257 {
1258     BOOL ret;
1259     SERVER_START_REQ(register_async)
1260     {
1261         req->handle = hFile;
1262         req->overlapped = lpOverlapped;
1263         req->type = type;
1264         req->count = count;
1265         req->func = check_async_list;
1266         req->status = status;
1267         ret = wine_server_call( req );
1268     }
1269     SERVER_END_REQ;
1270     return !ret;
1271 }
1272
1273 /***********************************************************************
1274  *             CancelIo                   (KERNEL32.@)
1275  */
1276 BOOL WINAPI CancelIo(HANDLE handle)
1277 {
1278     return FILE_StartAsync(handle, NULL, ASYNC_TYPE_NONE, 0, STATUS_CANCELLED);
1279 }
1280
1281 /***********************************************************************
1282  *             FILE_AsyncReadService      (INTERNAL)
1283  *
1284  *  This function is called while the client is waiting on the
1285  *  server, so we can't make any server calls here.
1286  */
1287 static void FILE_AsyncReadService(async_private *ovp)
1288 {
1289     LPOVERLAPPED lpOverlapped = ovp->lpOverlapped;
1290     int result, r;
1291
1292     TRACE("%p %p\n", lpOverlapped, ovp->buffer );
1293
1294     /* check to see if the data is ready (non-blocking) */
1295     result = read(ovp->fd, &ovp->buffer[lpOverlapped->InternalHigh],
1296                   ovp->count - lpOverlapped->InternalHigh);
1297
1298     if ( (result<0) && ((errno == EAGAIN) || (errno == EINTR)))
1299     {
1300         TRACE("Deferred read %d\n",errno);
1301         r = STATUS_PENDING;
1302         goto async_end;
1303     }
1304
1305     /* check to see if the transfer is complete */
1306     if(result<0)
1307     {
1308         TRACE("read returned errno %d\n",errno);
1309         r = STATUS_UNSUCCESSFUL;
1310         goto async_end;
1311     }
1312
1313     lpOverlapped->InternalHigh += result;
1314     TRACE("read %d more bytes %ld/%d so far\n",result,lpOverlapped->InternalHigh,ovp->count);
1315
1316     if(lpOverlapped->InternalHigh < ovp->count)
1317         r = STATUS_PENDING;
1318     else
1319         r = STATUS_SUCCESS;
1320
1321 async_end:
1322     lpOverlapped->Internal = r;
1323 }
1324
1325 /***********************************************************************
1326  *              FILE_ReadFileEx                (INTERNAL)
1327  */
1328 static BOOL FILE_ReadFileEx(HANDLE hFile, LPVOID buffer, DWORD bytesToRead,
1329                          LPOVERLAPPED overlapped,
1330                          LPOVERLAPPED_COMPLETION_ROUTINE lpCompletionRoutine)
1331 {
1332     async_private *ovp;
1333     int fd;
1334
1335     TRACE("file %d to buf %p num %ld %p func %p\n",
1336           hFile, buffer, bytesToRead, overlapped, lpCompletionRoutine);
1337
1338     /* check that there is an overlapped struct */
1339     if (overlapped==NULL)
1340     {
1341         SetLastError(ERROR_INVALID_PARAMETER);
1342         return FALSE;
1343     }
1344
1345     fd = FILE_GetUnixHandle( hFile, GENERIC_READ );
1346     if(fd<0)
1347     {
1348         TRACE("Couldn't get FD\n");
1349         return FALSE;
1350     }
1351
1352     ovp = (async_private *) HeapAlloc(GetProcessHeap(), 0, sizeof (async_private));
1353     if(!ovp)
1354     {
1355         TRACE("HeapAlloc Failed\n");
1356         SetLastError(ERROR_NOT_ENOUGH_MEMORY);
1357         close(fd);
1358         return FALSE;
1359     }
1360     ovp->lpOverlapped = overlapped;
1361     ovp->count = bytesToRead;
1362     ovp->completion_func = lpCompletionRoutine;
1363     ovp->func = FILE_AsyncReadService;
1364     ovp->buffer = buffer;
1365     ovp->fd = fd;
1366     ovp->type = ASYNC_TYPE_READ;
1367     ovp->handle = hFile;
1368
1369     /* hook this overlap into the pending async operation list */
1370     ovp->next = NtCurrentTeb()->pending_list;
1371     ovp->prev = NULL;
1372     if(ovp->next)
1373         ovp->next->prev = ovp;
1374     NtCurrentTeb()->pending_list = ovp;
1375
1376     if ( !FILE_StartAsync(hFile, overlapped, ASYNC_TYPE_READ, bytesToRead, STATUS_PENDING) )
1377     {
1378         /* FIXME: remove async_private and release memory */
1379         ERR("FILE_StartAsync failed\n");
1380         return FALSE;
1381     }
1382
1383     return TRUE;
1384 }
1385
1386 /***********************************************************************
1387  *              ReadFileEx                (KERNEL32.@)
1388  */
1389 BOOL WINAPI ReadFileEx(HANDLE hFile, LPVOID buffer, DWORD bytesToRead,
1390                          LPOVERLAPPED overlapped,
1391                          LPOVERLAPPED_COMPLETION_ROUTINE lpCompletionRoutine)
1392 {
1393     overlapped->Internal     = STATUS_PENDING;
1394     overlapped->InternalHigh = 0;
1395     return FILE_ReadFileEx(hFile,buffer,bytesToRead,overlapped,lpCompletionRoutine);
1396 }
1397
1398 static VOID CALLBACK FILE_OverlappedComplete(DWORD status, DWORD count, LPOVERLAPPED ov)
1399 {
1400     NtSetEvent(ov->hEvent,NULL);
1401 }
1402
1403 static BOOL FILE_TimeoutRead(HANDLE hFile, LPVOID buffer, DWORD bytesToRead, LPDWORD bytesRead)
1404 {
1405     OVERLAPPED ov;
1406     BOOL r = FALSE;
1407
1408     TRACE("%d %p %ld %p\n", hFile, buffer, bytesToRead, bytesRead );
1409
1410     ZeroMemory(&ov, sizeof (OVERLAPPED));
1411     if(STATUS_SUCCESS==NtCreateEvent(&ov.hEvent, SYNCHRONIZE, NULL, 0, 0))
1412     {
1413         if(ReadFileEx(hFile, buffer, bytesToRead, &ov, FILE_OverlappedComplete))
1414         {
1415             r = GetOverlappedResult(hFile, &ov, bytesRead, TRUE);
1416         }
1417     }
1418     CloseHandle(ov.hEvent);
1419     return r;
1420 }
1421
1422 /***********************************************************************
1423  *              ReadFile                (KERNEL32.@)
1424  */
1425 BOOL WINAPI ReadFile( HANDLE hFile, LPVOID buffer, DWORD bytesToRead,
1426                         LPDWORD bytesRead, LPOVERLAPPED overlapped )
1427 {
1428     int unix_handle, result;
1429     DWORD type;
1430
1431     TRACE("%d %p %ld %p %p\n", hFile, buffer, bytesToRead,
1432           bytesRead, overlapped );
1433
1434     if (bytesRead) *bytesRead = 0;  /* Do this before anything else */
1435     if (!bytesToRead) return TRUE;
1436
1437     unix_handle = FILE_GetUnixHandleType( hFile, GENERIC_READ, &type );
1438
1439     switch (type)
1440     {
1441     case FD_TYPE_OVERLAPPED:
1442         if (unix_handle == -1) return FALSE;
1443         if ( (overlapped==NULL) || NtResetEvent( overlapped->hEvent, NULL ) )
1444         {
1445             TRACE("Overlapped not specified or invalid event flag\n");
1446             close(unix_handle);
1447             SetLastError(ERROR_INVALID_PARAMETER);
1448             return FALSE;
1449         }
1450
1451         /* see if we can read some data already (this shouldn't block) */
1452         result = read( unix_handle, buffer, bytesToRead );
1453         close(unix_handle);
1454
1455         if(result<0)
1456         {
1457             if( (errno!=EAGAIN) && (errno!=EINTR) &&
1458                 ((errno != EFAULT) || IsBadWritePtr( buffer, bytesToRead )) )
1459             {
1460                 FILE_SetDosError();
1461                 return FALSE;
1462             }
1463             else
1464                 result = 0;
1465         }
1466
1467         /* if we read enough to keep the app happy, then return now */
1468         if(result>=bytesToRead)
1469         {
1470             *bytesRead = result;
1471             return TRUE;
1472         }
1473
1474         /* at last resort, do an overlapped read */
1475         overlapped->Internal     = STATUS_PENDING;
1476         overlapped->InternalHigh = result;
1477
1478         if(!FILE_ReadFileEx(hFile, buffer, bytesToRead, overlapped, FILE_OverlappedComplete))
1479             return FALSE;
1480
1481         /* fail on return, with ERROR_IO_PENDING */
1482         SetLastError(ERROR_IO_PENDING);
1483         return FALSE;
1484
1485     case FD_TYPE_CONSOLE:
1486         return ReadConsoleA(hFile, buffer, bytesToRead, bytesRead, NULL);
1487
1488     case FD_TYPE_TIMEOUT:
1489         close(unix_handle);
1490         return FILE_TimeoutRead(hFile, buffer, bytesToRead, bytesRead);
1491
1492     default:
1493         /* normal unix files */
1494         if (unix_handle == -1)
1495             return FALSE;
1496         if (overlapped)
1497         {
1498             close(unix_handle);
1499             SetLastError(ERROR_INVALID_PARAMETER);
1500             return FALSE;
1501         }
1502         break;
1503     }
1504
1505     /* code for synchronous reads */
1506     while ((result = read( unix_handle, buffer, bytesToRead )) == -1)
1507     {
1508         if ((errno == EAGAIN) || (errno == EINTR)) continue;
1509         if ((errno == EFAULT) && !IsBadWritePtr( buffer, bytesToRead )) continue;
1510         FILE_SetDosError();
1511         break;
1512     }
1513     close( unix_handle );
1514     if (result == -1) return FALSE;
1515     if (bytesRead) *bytesRead = result;
1516     return TRUE;
1517 }
1518
1519
1520 /***********************************************************************
1521  *             FILE_AsyncWriteService      (INTERNAL)
1522  *
1523  *  This function is called while the client is waiting on the
1524  *  server, so we can't make any server calls here.
1525  */
1526 static void FILE_AsyncWriteService(struct async_private *ovp)
1527 {
1528     LPOVERLAPPED lpOverlapped = ovp->lpOverlapped;
1529     int result, r;
1530
1531     TRACE("(%p %p)\n",lpOverlapped,ovp->buffer);
1532
1533     /* write some data (non-blocking) */
1534     result = write(ovp->fd, &ovp->buffer[lpOverlapped->InternalHigh],
1535                   ovp->count-lpOverlapped->InternalHigh);
1536
1537     if ( (result<0) && ((errno == EAGAIN) || (errno == EINTR)))
1538     {
1539         r = STATUS_PENDING;
1540         goto async_end;
1541     }
1542
1543     /* check to see if the transfer is complete */
1544     if(result<0)
1545     {
1546         r = STATUS_UNSUCCESSFUL;
1547         goto async_end;
1548     }
1549
1550     lpOverlapped->InternalHigh += result;
1551
1552     TRACE("wrote %d more bytes %ld/%d so far\n",result,lpOverlapped->InternalHigh,ovp->count);
1553
1554     if(lpOverlapped->InternalHigh < ovp->count)
1555         r = STATUS_PENDING;
1556     else
1557         r = STATUS_SUCCESS;
1558
1559 async_end:
1560     lpOverlapped->Internal = r;
1561 }
1562
1563 /***********************************************************************
1564  *              WriteFileEx                (KERNEL32.@)
1565  */
1566 BOOL WINAPI WriteFileEx(HANDLE hFile, LPCVOID buffer, DWORD bytesToWrite,
1567                          LPOVERLAPPED overlapped,
1568                          LPOVERLAPPED_COMPLETION_ROUTINE lpCompletionRoutine)
1569 {
1570     async_private *ovp;
1571
1572     TRACE("file %d to buf %p num %ld %p func %p stub\n",
1573           hFile, buffer, bytesToWrite, overlapped, lpCompletionRoutine);
1574
1575     if (overlapped == NULL)
1576     {
1577         SetLastError(ERROR_INVALID_PARAMETER);
1578         return FALSE;
1579     }
1580
1581     overlapped->Internal     = STATUS_PENDING;
1582     overlapped->InternalHigh = 0;
1583
1584     if (!FILE_StartAsync(hFile, overlapped, ASYNC_TYPE_WRITE, bytesToWrite, STATUS_PENDING ))
1585     {
1586         TRACE("FILE_StartAsync failed\n");
1587         return FALSE;
1588     }
1589
1590     ovp = (async_private*) HeapAlloc(GetProcessHeap(), 0, sizeof (async_private));
1591     if(!ovp)
1592     {
1593         TRACE("HeapAlloc Failed\n");
1594         SetLastError(ERROR_NOT_ENOUGH_MEMORY);
1595         return FALSE;
1596     }
1597     ovp->lpOverlapped = overlapped;
1598     ovp->func = FILE_AsyncWriteService;
1599     ovp->buffer = (LPVOID) buffer;
1600     ovp->count = bytesToWrite;
1601     ovp->completion_func = lpCompletionRoutine;
1602     ovp->fd = FILE_GetUnixHandle( hFile, GENERIC_WRITE );
1603     ovp->type = ASYNC_TYPE_WRITE;
1604     ovp->handle = hFile;
1605
1606     if(ovp->fd <0)
1607     {
1608         HeapFree(GetProcessHeap(), 0, ovp);
1609         return FALSE;
1610     }
1611
1612     /* hook this overlap into the pending async operation list */
1613     ovp->next = NtCurrentTeb()->pending_list;
1614     ovp->prev = NULL;
1615     if(ovp->next)
1616         ovp->next->prev = ovp;
1617     NtCurrentTeb()->pending_list = ovp;
1618
1619     SetLastError(ERROR_IO_PENDING);
1620
1621     /* always fail on return, either ERROR_IO_PENDING or other error */
1622     return FALSE;
1623 }
1624
1625 /***********************************************************************
1626  *             WriteFile               (KERNEL32.@)
1627  */
1628 BOOL WINAPI WriteFile( HANDLE hFile, LPCVOID buffer, DWORD bytesToWrite,
1629                          LPDWORD bytesWritten, LPOVERLAPPED overlapped )
1630 {
1631     int unix_handle, result;
1632     DWORD type;
1633
1634     TRACE("%d %p %ld %p %p\n", hFile, buffer, bytesToWrite,
1635           bytesWritten, overlapped );
1636
1637     if (bytesWritten) *bytesWritten = 0;  /* Do this before anything else */
1638     if (!bytesToWrite) return TRUE;
1639
1640     unix_handle = FILE_GetUnixHandleType( hFile, GENERIC_WRITE, &type );
1641
1642     switch (type)
1643     {
1644     case FD_TYPE_OVERLAPPED:
1645         if (unix_handle == -1) return FALSE;
1646         if ( (overlapped==NULL) || NtResetEvent( overlapped->hEvent, NULL ) )
1647         {
1648             TRACE("Overlapped not specified or invalid event flag\n");
1649             close(unix_handle);
1650             SetLastError(ERROR_INVALID_PARAMETER);
1651             return FALSE;
1652         }
1653         /* FIXME: try write immediately before starting overlapped operation */
1654         return WriteFileEx(hFile, buffer, bytesToWrite, overlapped, FILE_OverlappedComplete);
1655
1656     case FD_TYPE_CONSOLE:
1657         TRACE("%d %s %ld %p %p\n", hFile, debugstr_an(buffer, bytesToWrite), bytesToWrite,
1658               bytesWritten, overlapped );
1659         return WriteConsoleA(hFile, buffer, bytesToWrite, bytesWritten, NULL);
1660     default:
1661         if (unix_handle == -1)
1662             return FALSE;
1663     }
1664
1665     /* synchronous file write */
1666     while ((result = write( unix_handle, buffer, bytesToWrite )) == -1)
1667     {
1668         if ((errno == EAGAIN) || (errno == EINTR)) continue;
1669         if ((errno == EFAULT) && !IsBadReadPtr( buffer, bytesToWrite )) continue;
1670         if (errno == ENOSPC)
1671             SetLastError( ERROR_DISK_FULL );
1672         else
1673         FILE_SetDosError();
1674         break;
1675     }
1676     close( unix_handle );
1677     if (result == -1) return FALSE;
1678     if (bytesWritten) *bytesWritten = result;
1679     return TRUE;
1680 }
1681
1682
1683 /***********************************************************************
1684  *           _hread (KERNEL.349)
1685  */
1686 LONG WINAPI WIN16_hread( HFILE16 hFile, SEGPTR buffer, LONG count )
1687 {
1688     LONG maxlen;
1689
1690     TRACE("%d %08lx %ld\n",
1691                   hFile, (DWORD)buffer, count );
1692
1693     /* Some programs pass a count larger than the allocated buffer */
1694     maxlen = GetSelectorLimit16( SELECTOROF(buffer) ) - OFFSETOF(buffer) + 1;
1695     if (count > maxlen) count = maxlen;
1696     return _lread(DosFileHandleToWin32Handle(hFile), MapSL(buffer), count );
1697 }
1698
1699
1700 /***********************************************************************
1701  *           _lread (KERNEL.82)
1702  */
1703 UINT16 WINAPI WIN16_lread( HFILE16 hFile, SEGPTR buffer, UINT16 count )
1704 {
1705     return (UINT16)WIN16_hread( hFile, buffer, (LONG)count );
1706 }
1707
1708
1709 /***********************************************************************
1710  *           _lread   (KERNEL32.@)
1711  */
1712 UINT WINAPI _lread( HFILE handle, LPVOID buffer, UINT count )
1713 {
1714     DWORD result;
1715     if (!ReadFile( handle, buffer, count, &result, NULL )) return -1;
1716     return result;
1717 }
1718
1719
1720 /***********************************************************************
1721  *           _lread16   (KERNEL.82)
1722  */
1723 UINT16 WINAPI _lread16( HFILE16 hFile, LPVOID buffer, UINT16 count )
1724 {
1725     return (UINT16)_lread(DosFileHandleToWin32Handle(hFile), buffer, (LONG)count );
1726 }
1727
1728
1729 /***********************************************************************
1730  *           _lcreat   (KERNEL.83)
1731  */
1732 HFILE16 WINAPI _lcreat16( LPCSTR path, INT16 attr )
1733 {
1734     return Win32HandleToDosFileHandle( _lcreat( path, attr ) );
1735 }
1736
1737
1738 /***********************************************************************
1739  *           _lcreat   (KERNEL32.@)
1740  */
1741 HFILE WINAPI _lcreat( LPCSTR path, INT attr )
1742 {
1743     /* Mask off all flags not explicitly allowed by the doc */
1744     attr &= FILE_ATTRIBUTE_READONLY | FILE_ATTRIBUTE_HIDDEN | FILE_ATTRIBUTE_SYSTEM;
1745     TRACE("%s %02x\n", path, attr );
1746     return CreateFileA( path, GENERIC_READ | GENERIC_WRITE,
1747                         FILE_SHARE_READ | FILE_SHARE_WRITE, NULL,
1748                         CREATE_ALWAYS, attr, 0 );
1749 }
1750
1751
1752 /***********************************************************************
1753  *           SetFilePointer   (KERNEL32.@)
1754  */
1755 DWORD WINAPI SetFilePointer( HANDLE hFile, LONG distance, LONG *highword,
1756                              DWORD method )
1757 {
1758     DWORD ret = 0xffffffff;
1759
1760     TRACE("handle %d offset %ld high %ld origin %ld\n",
1761           hFile, distance, highword?*highword:0, method );
1762
1763     SERVER_START_REQ( set_file_pointer )
1764     {
1765         req->handle = hFile;
1766         req->low = distance;
1767         req->high = highword ? *highword : (distance >= 0) ? 0 : -1;
1768         /* FIXME: assumes 1:1 mapping between Windows and Unix seek constants */
1769         req->whence = method;
1770         SetLastError( 0 );
1771         if (!wine_server_call_err( req ))
1772         {
1773             ret = reply->new_low;
1774             if (highword) *highword = reply->new_high;
1775         }
1776     }
1777     SERVER_END_REQ;
1778     return ret;
1779 }
1780
1781
1782 /***********************************************************************
1783  *           _llseek   (KERNEL.84)
1784  *
1785  * FIXME:
1786  *   Seeking before the start of the file should be allowed for _llseek16,
1787  *   but cause subsequent I/O operations to fail (cf. interrupt list)
1788  *
1789  */
1790 LONG WINAPI _llseek16( HFILE16 hFile, LONG lOffset, INT16 nOrigin )
1791 {
1792     return SetFilePointer( DosFileHandleToWin32Handle(hFile), lOffset, NULL, nOrigin );
1793 }
1794
1795
1796 /***********************************************************************
1797  *           _llseek   (KERNEL32.@)
1798  */
1799 LONG WINAPI _llseek( HFILE hFile, LONG lOffset, INT nOrigin )
1800 {
1801     return SetFilePointer( hFile, lOffset, NULL, nOrigin );
1802 }
1803
1804
1805 /***********************************************************************
1806  *           _lopen   (KERNEL.85)
1807  */
1808 HFILE16 WINAPI _lopen16( LPCSTR path, INT16 mode )
1809 {
1810     return Win32HandleToDosFileHandle( _lopen( path, mode ) );
1811 }
1812
1813
1814 /***********************************************************************
1815  *           _lopen   (KERNEL32.@)
1816  */
1817 HFILE WINAPI _lopen( LPCSTR path, INT mode )
1818 {
1819     DWORD access, sharing;
1820
1821     TRACE("('%s',%04x)\n", path, mode );
1822     FILE_ConvertOFMode( mode, &access, &sharing );
1823     return CreateFileA( path, access, sharing, NULL, OPEN_EXISTING, 0, 0 );
1824 }
1825
1826
1827 /***********************************************************************
1828  *           _lwrite   (KERNEL.86)
1829  */
1830 UINT16 WINAPI _lwrite16( HFILE16 hFile, LPCSTR buffer, UINT16 count )
1831 {
1832     return (UINT16)_hwrite( DosFileHandleToWin32Handle(hFile), buffer, (LONG)count );
1833 }
1834
1835 /***********************************************************************
1836  *           _lwrite   (KERNEL32.@)
1837  */
1838 UINT WINAPI _lwrite( HFILE hFile, LPCSTR buffer, UINT count )
1839 {
1840     return (UINT)_hwrite( hFile, buffer, (LONG)count );
1841 }
1842
1843
1844 /***********************************************************************
1845  *           _hread16   (KERNEL.349)
1846  */
1847 LONG WINAPI _hread16( HFILE16 hFile, LPVOID buffer, LONG count)
1848 {
1849     return _lread( DosFileHandleToWin32Handle(hFile), buffer, count );
1850 }
1851
1852
1853 /***********************************************************************
1854  *           _hread   (KERNEL32.@)
1855  */
1856 LONG WINAPI _hread( HFILE hFile, LPVOID buffer, LONG count)
1857 {
1858     return _lread( hFile, buffer, count );
1859 }
1860
1861
1862 /***********************************************************************
1863  *           _hwrite   (KERNEL.350)
1864  */
1865 LONG WINAPI _hwrite16( HFILE16 hFile, LPCSTR buffer, LONG count )
1866 {
1867     return _hwrite( DosFileHandleToWin32Handle(hFile), buffer, count );
1868 }
1869
1870
1871 /***********************************************************************
1872  *           _hwrite   (KERNEL32.@)
1873  *
1874  *      experimentation yields that _lwrite:
1875  *              o truncates the file at the current position with
1876  *                a 0 len write
1877  *              o returns 0 on a 0 length write
1878  *              o works with console handles
1879  *
1880  */
1881 LONG WINAPI _hwrite( HFILE handle, LPCSTR buffer, LONG count )
1882 {
1883     DWORD result;
1884
1885     TRACE("%d %p %ld\n", handle, buffer, count );
1886
1887     if (!count)
1888     {
1889         /* Expand or truncate at current position */
1890         if (!SetEndOfFile( handle )) return HFILE_ERROR;
1891         return 0;
1892     }
1893     if (!WriteFile( handle, buffer, count, &result, NULL ))
1894         return HFILE_ERROR;
1895     return result;
1896 }
1897
1898
1899 /***********************************************************************
1900  *           SetHandleCount   (KERNEL.199)
1901  */
1902 UINT16 WINAPI SetHandleCount16( UINT16 count )
1903 {
1904     return SetHandleCount( count );
1905 }
1906
1907
1908 /*************************************************************************
1909  *           SetHandleCount   (KERNEL32.@)
1910  */
1911 UINT WINAPI SetHandleCount( UINT count )
1912 {
1913     return min( 256, count );
1914 }
1915
1916
1917 /***********************************************************************
1918  *           FlushFileBuffers   (KERNEL32.@)
1919  */
1920 BOOL WINAPI FlushFileBuffers( HANDLE hFile )
1921 {
1922     BOOL ret;
1923     SERVER_START_REQ( flush_file )
1924     {
1925         req->handle = hFile;
1926         ret = !wine_server_call_err( req );
1927     }
1928     SERVER_END_REQ;
1929     return ret;
1930 }
1931
1932
1933 /**************************************************************************
1934  *           SetEndOfFile   (KERNEL32.@)
1935  */
1936 BOOL WINAPI SetEndOfFile( HANDLE hFile )
1937 {
1938     BOOL ret;
1939     SERVER_START_REQ( truncate_file )
1940     {
1941         req->handle = hFile;
1942         ret = !wine_server_call_err( req );
1943     }
1944     SERVER_END_REQ;
1945     return ret;
1946 }
1947
1948
1949 /***********************************************************************
1950  *           DeleteFile   (KERNEL.146)
1951  */
1952 BOOL16 WINAPI DeleteFile16( LPCSTR path )
1953 {
1954     return DeleteFileA( path );
1955 }
1956
1957
1958 /***********************************************************************
1959  *           DeleteFileA   (KERNEL32.@)
1960  */
1961 BOOL WINAPI DeleteFileA( LPCSTR path )
1962 {
1963     DOS_FULL_NAME full_name;
1964
1965     if (!path)
1966     {
1967         SetLastError(ERROR_INVALID_PARAMETER);
1968         return FALSE;
1969     }
1970     TRACE("'%s'\n", path );
1971
1972     if (!*path)
1973     {
1974         ERR("Empty path passed\n");
1975         return FALSE;
1976     }
1977     if (DOSFS_GetDevice( path ))
1978     {
1979         WARN("cannot remove DOS device '%s'!\n", path);
1980         SetLastError( ERROR_FILE_NOT_FOUND );
1981         return FALSE;
1982     }
1983
1984     if (!DOSFS_GetFullName( path, TRUE, &full_name )) return FALSE;
1985     if (unlink( full_name.long_name ) == -1)
1986     {
1987         FILE_SetDosError();
1988         return FALSE;
1989     }
1990     return TRUE;
1991 }
1992
1993
1994 /***********************************************************************
1995  *           DeleteFileW   (KERNEL32.@)
1996  */
1997 BOOL WINAPI DeleteFileW( LPCWSTR path )
1998 {
1999     LPSTR xpath = HEAP_strdupWtoA( GetProcessHeap(), 0, path );
2000     BOOL ret = DeleteFileA( xpath );
2001     HeapFree( GetProcessHeap(), 0, xpath );
2002     return ret;
2003 }
2004
2005
2006 /***********************************************************************
2007  *           GetFileType   (KERNEL32.@)
2008  */
2009 DWORD WINAPI GetFileType( HANDLE hFile )
2010 {
2011     DWORD ret = FILE_TYPE_UNKNOWN;
2012     SERVER_START_REQ( get_file_info )
2013     {
2014         req->handle = hFile;
2015         if (!wine_server_call_err( req )) ret = reply->type;
2016     }
2017     SERVER_END_REQ;
2018     return ret;
2019 }
2020
2021
2022 /* check if a file name is for an executable file (.exe or .com) */
2023 inline static BOOL is_executable( const char *name )
2024 {
2025     int len = strlen(name);
2026
2027     if (len < 4) return FALSE;
2028     return (!strcasecmp( name + len - 4, ".exe" ) ||
2029             !strcasecmp( name + len - 4, ".com" ));
2030 }
2031
2032
2033 /**************************************************************************
2034  *           MoveFileExA   (KERNEL32.@)
2035  */
2036 BOOL WINAPI MoveFileExA( LPCSTR fn1, LPCSTR fn2, DWORD flag )
2037 {
2038     DOS_FULL_NAME full_name1, full_name2;
2039
2040     TRACE("(%s,%s,%04lx)\n", fn1, fn2, flag);
2041
2042     if (!fn1) {
2043         SetLastError(ERROR_INVALID_PARAMETER);
2044         return FALSE;
2045     }
2046
2047     if (!DOSFS_GetFullName( fn1, TRUE, &full_name1 )) return FALSE;
2048
2049     if (fn2)  /* !fn2 means delete fn1 */
2050     {
2051         if (DOSFS_GetFullName( fn2, TRUE, &full_name2 ))
2052         {
2053             /* target exists, check if we may overwrite */
2054             if (!(flag & MOVEFILE_REPLACE_EXISTING))
2055             {
2056                 /* FIXME: Use right error code */
2057                 SetLastError( ERROR_ACCESS_DENIED );
2058                 return FALSE;
2059             }
2060         }
2061         else if (!DOSFS_GetFullName( fn2, FALSE, &full_name2 )) return FALSE;
2062
2063         /* Source name and target path are valid */
2064
2065         if (flag & MOVEFILE_DELAY_UNTIL_REBOOT)
2066         {
2067             /* FIXME: (bon@elektron.ikp.physik.th-darmstadt.de 970706)
2068                Perhaps we should queue these command and execute it
2069                when exiting... What about using on_exit(2)
2070             */
2071             FIXME("Please move existing file '%s' to file '%s' when Wine has finished\n",
2072                   full_name1.long_name, full_name2.long_name);
2073             return TRUE;
2074         }
2075
2076         if (full_name1.drive != full_name2.drive)
2077         {
2078             /* use copy, if allowed */
2079             if (!(flag & MOVEFILE_COPY_ALLOWED))
2080             {
2081                 /* FIXME: Use right error code */
2082                 SetLastError( ERROR_FILE_EXISTS );
2083                 return FALSE;
2084             }
2085             return CopyFileA( fn1, fn2, !(flag & MOVEFILE_REPLACE_EXISTING) );
2086         }
2087         if (rename( full_name1.long_name, full_name2.long_name ) == -1)
2088         {
2089             FILE_SetDosError();
2090             return FALSE;
2091         }
2092         if (is_executable( full_name1.long_name ) != is_executable( full_name2.long_name ))
2093         {
2094             struct stat fstat;
2095             if (stat( full_name2.long_name, &fstat ) != -1)
2096             {
2097                 if (is_executable( full_name2.long_name ))
2098                     /* set executable bit where read bit is set */
2099                     fstat.st_mode |= (fstat.st_mode & 0444) >> 2;
2100                 else
2101                     fstat.st_mode &= ~0111;
2102                 chmod( full_name2.long_name, fstat.st_mode );
2103             }
2104         }
2105         return TRUE;
2106     }
2107     else /* fn2 == NULL means delete source */
2108     {
2109         if (flag & MOVEFILE_DELAY_UNTIL_REBOOT)
2110         {
2111             if (flag & MOVEFILE_COPY_ALLOWED) {
2112                 WARN("Illegal flag\n");
2113                 SetLastError( ERROR_GEN_FAILURE );
2114                 return FALSE;
2115             }
2116             /* FIXME: (bon@elektron.ikp.physik.th-darmstadt.de 970706)
2117                Perhaps we should queue these command and execute it
2118                when exiting... What about using on_exit(2)
2119             */
2120             FIXME("Please delete file '%s' when Wine has finished\n",
2121                   full_name1.long_name);
2122             return TRUE;
2123         }
2124
2125         if (unlink( full_name1.long_name ) == -1)
2126         {
2127             FILE_SetDosError();
2128             return FALSE;
2129         }
2130         return TRUE; /* successfully deleted */
2131     }
2132 }
2133
2134 /**************************************************************************
2135  *           MoveFileExW   (KERNEL32.@)
2136  */
2137 BOOL WINAPI MoveFileExW( LPCWSTR fn1, LPCWSTR fn2, DWORD flag )
2138 {
2139     LPSTR afn1 = HEAP_strdupWtoA( GetProcessHeap(), 0, fn1 );
2140     LPSTR afn2 = HEAP_strdupWtoA( GetProcessHeap(), 0, fn2 );
2141     BOOL res = MoveFileExA( afn1, afn2, flag );
2142     HeapFree( GetProcessHeap(), 0, afn1 );
2143     HeapFree( GetProcessHeap(), 0, afn2 );
2144     return res;
2145 }
2146
2147
2148 /**************************************************************************
2149  *           MoveFileA   (KERNEL32.@)
2150  *
2151  *  Move file or directory
2152  */
2153 BOOL WINAPI MoveFileA( LPCSTR fn1, LPCSTR fn2 )
2154 {
2155     DOS_FULL_NAME full_name1, full_name2;
2156     struct stat fstat;
2157
2158     TRACE("(%s,%s)\n", fn1, fn2 );
2159
2160     if (!DOSFS_GetFullName( fn1, TRUE, &full_name1 )) return FALSE;
2161     if (DOSFS_GetFullName( fn2, TRUE, &full_name2 ))  {
2162       /* The new name must not already exist */
2163       SetLastError(ERROR_ALREADY_EXISTS);
2164       return FALSE;
2165     }
2166     if (!DOSFS_GetFullName( fn2, FALSE, &full_name2 )) return FALSE;
2167
2168     if (full_name1.drive == full_name2.drive) /* move */
2169         return MoveFileExA( fn1, fn2, MOVEFILE_COPY_ALLOWED );
2170
2171     /* copy */
2172     if (stat( full_name1.long_name, &fstat ))
2173     {
2174         WARN("Invalid source file %s\n",
2175              full_name1.long_name);
2176         FILE_SetDosError();
2177         return FALSE;
2178     }
2179     if (S_ISDIR(fstat.st_mode)) {
2180         /* No Move for directories across file systems */
2181         /* FIXME: Use right error code */
2182         SetLastError( ERROR_GEN_FAILURE );
2183         return FALSE;
2184     }
2185     return CopyFileA(fn1, fn2, TRUE); /*fail, if exist */
2186 }
2187
2188
2189 /**************************************************************************
2190  *           MoveFileW   (KERNEL32.@)
2191  */
2192 BOOL WINAPI MoveFileW( LPCWSTR fn1, LPCWSTR fn2 )
2193 {
2194     LPSTR afn1 = HEAP_strdupWtoA( GetProcessHeap(), 0, fn1 );
2195     LPSTR afn2 = HEAP_strdupWtoA( GetProcessHeap(), 0, fn2 );
2196     BOOL res = MoveFileA( afn1, afn2 );
2197     HeapFree( GetProcessHeap(), 0, afn1 );
2198     HeapFree( GetProcessHeap(), 0, afn2 );
2199     return res;
2200 }
2201
2202
2203 /**************************************************************************
2204  *           CopyFileA   (KERNEL32.@)
2205  */
2206 BOOL WINAPI CopyFileA( LPCSTR source, LPCSTR dest, BOOL fail_if_exists )
2207 {
2208     HFILE h1, h2;
2209     BY_HANDLE_FILE_INFORMATION info;
2210     UINT count;
2211     BOOL ret = FALSE;
2212     int mode;
2213     char buffer[2048];
2214
2215     if ((h1 = _lopen( source, OF_READ )) == HFILE_ERROR) return FALSE;
2216     if (!GetFileInformationByHandle( h1, &info ))
2217     {
2218         CloseHandle( h1 );
2219         return FALSE;
2220     }
2221     mode = (info.dwFileAttributes & FILE_ATTRIBUTE_READONLY) ? 0444 : 0666;
2222     if ((h2 = CreateFileA( dest, GENERIC_WRITE, FILE_SHARE_READ | FILE_SHARE_WRITE, NULL,
2223                              fail_if_exists ? CREATE_NEW : CREATE_ALWAYS,
2224                              info.dwFileAttributes, h1 )) == INVALID_HANDLE_VALUE)
2225     {
2226         CloseHandle( h1 );
2227         return FALSE;
2228     }
2229     while ((count = _lread( h1, buffer, sizeof(buffer) )) > 0)
2230     {
2231         char *p = buffer;
2232         while (count > 0)
2233         {
2234             INT res = _lwrite( h2, p, count );
2235             if (res <= 0) goto done;
2236             p += res;
2237             count -= res;
2238         }
2239     }
2240     ret =  TRUE;
2241 done:
2242     CloseHandle( h1 );
2243     CloseHandle( h2 );
2244     return ret;
2245 }
2246
2247
2248 /**************************************************************************
2249  *           CopyFileW   (KERNEL32.@)
2250  */
2251 BOOL WINAPI CopyFileW( LPCWSTR source, LPCWSTR dest, BOOL fail_if_exists)
2252 {
2253     LPSTR sourceA = HEAP_strdupWtoA( GetProcessHeap(), 0, source );
2254     LPSTR destA   = HEAP_strdupWtoA( GetProcessHeap(), 0, dest );
2255     BOOL ret = CopyFileA( sourceA, destA, fail_if_exists );
2256     HeapFree( GetProcessHeap(), 0, sourceA );
2257     HeapFree( GetProcessHeap(), 0, destA );
2258     return ret;
2259 }
2260
2261
2262 /**************************************************************************
2263  *           CopyFileExA   (KERNEL32.@)
2264  *
2265  * This implementation ignores most of the extra parameters passed-in into
2266  * the "ex" version of the method and calls the CopyFile method.
2267  * It will have to be fixed eventually.
2268  */
2269 BOOL WINAPI CopyFileExA(LPCSTR             sourceFilename,
2270                            LPCSTR             destFilename,
2271                            LPPROGRESS_ROUTINE progressRoutine,
2272                            LPVOID             appData,
2273                            LPBOOL           cancelFlagPointer,
2274                            DWORD              copyFlags)
2275 {
2276   BOOL failIfExists = FALSE;
2277
2278   /*
2279    * Interpret the only flag that CopyFile can interpret.
2280    */
2281   if ( (copyFlags & COPY_FILE_FAIL_IF_EXISTS) != 0)
2282   {
2283     failIfExists = TRUE;
2284   }
2285
2286   return CopyFileA(sourceFilename, destFilename, failIfExists);
2287 }
2288
2289 /**************************************************************************
2290  *           CopyFileExW   (KERNEL32.@)
2291  */
2292 BOOL WINAPI CopyFileExW(LPCWSTR            sourceFilename,
2293                            LPCWSTR            destFilename,
2294                            LPPROGRESS_ROUTINE progressRoutine,
2295                            LPVOID             appData,
2296                            LPBOOL           cancelFlagPointer,
2297                            DWORD              copyFlags)
2298 {
2299     LPSTR sourceA = HEAP_strdupWtoA( GetProcessHeap(), 0, sourceFilename );
2300     LPSTR destA   = HEAP_strdupWtoA( GetProcessHeap(), 0, destFilename );
2301
2302     BOOL ret = CopyFileExA(sourceA,
2303                               destA,
2304                               progressRoutine,
2305                               appData,
2306                               cancelFlagPointer,
2307                               copyFlags);
2308
2309     HeapFree( GetProcessHeap(), 0, sourceA );
2310     HeapFree( GetProcessHeap(), 0, destA );
2311
2312     return ret;
2313 }
2314
2315
2316 /***********************************************************************
2317  *              SetFileTime   (KERNEL32.@)
2318  */
2319 BOOL WINAPI SetFileTime( HANDLE hFile,
2320                            const FILETIME *lpCreationTime,
2321                            const FILETIME *lpLastAccessTime,
2322                            const FILETIME *lpLastWriteTime )
2323 {
2324     BOOL ret;
2325     SERVER_START_REQ( set_file_time )
2326     {
2327         req->handle = hFile;
2328         if (lpLastAccessTime)
2329             RtlTimeToSecondsSince1970( lpLastAccessTime, (DWORD *)&req->access_time );
2330         else
2331             req->access_time = 0; /* FIXME */
2332         if (lpLastWriteTime)
2333             RtlTimeToSecondsSince1970( lpLastWriteTime, (DWORD *)&req->write_time );
2334         else
2335             req->write_time = 0; /* FIXME */
2336         ret = !wine_server_call_err( req );
2337     }
2338     SERVER_END_REQ;
2339     return ret;
2340 }
2341
2342
2343 /**************************************************************************
2344  *           LockFile   (KERNEL32.@)
2345  */
2346 BOOL WINAPI LockFile( HANDLE hFile, DWORD dwFileOffsetLow, DWORD dwFileOffsetHigh,
2347                         DWORD nNumberOfBytesToLockLow, DWORD nNumberOfBytesToLockHigh )
2348 {
2349     BOOL ret;
2350     SERVER_START_REQ( lock_file )
2351     {
2352         req->handle      = hFile;
2353         req->offset_low  = dwFileOffsetLow;
2354         req->offset_high = dwFileOffsetHigh;
2355         req->count_low   = nNumberOfBytesToLockLow;
2356         req->count_high  = nNumberOfBytesToLockHigh;
2357         ret = !wine_server_call_err( req );
2358     }
2359     SERVER_END_REQ;
2360     return ret;
2361 }
2362
2363 /**************************************************************************
2364  * LockFileEx [KERNEL32.@]
2365  *
2366  * Locks a byte range within an open file for shared or exclusive access.
2367  *
2368  * RETURNS
2369  *   success: TRUE
2370  *   failure: FALSE
2371  *
2372  * NOTES
2373  * Per Microsoft docs, the third parameter (reserved) must be set to 0.
2374  */
2375 BOOL WINAPI LockFileEx( HANDLE hFile, DWORD flags, DWORD reserved,
2376                       DWORD nNumberOfBytesToLockLow, DWORD nNumberOfBytesToLockHigh,
2377                       LPOVERLAPPED pOverlapped )
2378 {
2379     FIXME("hFile=%d,flags=%ld,reserved=%ld,lowbytes=%ld,highbytes=%ld,overlapped=%p: stub.\n",
2380           hFile, flags, reserved, nNumberOfBytesToLockLow, nNumberOfBytesToLockHigh,
2381           pOverlapped);
2382     if (reserved == 0)
2383         SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
2384     else
2385     {
2386         ERR("reserved == %ld: Supposed to be 0??\n", reserved);
2387         SetLastError(ERROR_INVALID_PARAMETER);
2388     }
2389
2390     return FALSE;
2391 }
2392
2393
2394 /**************************************************************************
2395  *           UnlockFile   (KERNEL32.@)
2396  */
2397 BOOL WINAPI UnlockFile( HANDLE hFile, DWORD dwFileOffsetLow, DWORD dwFileOffsetHigh,
2398                           DWORD nNumberOfBytesToUnlockLow, DWORD nNumberOfBytesToUnlockHigh )
2399 {
2400     BOOL ret;
2401     SERVER_START_REQ( unlock_file )
2402     {
2403         req->handle      = hFile;
2404         req->offset_low  = dwFileOffsetLow;
2405         req->offset_high = dwFileOffsetHigh;
2406         req->count_low   = nNumberOfBytesToUnlockLow;
2407         req->count_high  = nNumberOfBytesToUnlockHigh;
2408         ret = !wine_server_call_err( req );
2409     }
2410     SERVER_END_REQ;
2411     return ret;
2412 }
2413
2414
2415 /**************************************************************************
2416  *           UnlockFileEx   (KERNEL32.@)
2417  */
2418 BOOL WINAPI UnlockFileEx(
2419                 HFILE hFile,
2420                 DWORD dwReserved,
2421                 DWORD nNumberOfBytesToUnlockLow,
2422                 DWORD nNumberOfBytesToUnlockHigh,
2423                 LPOVERLAPPED lpOverlapped
2424 )
2425 {
2426         FIXME("hFile=%d,reserved=%ld,lowbytes=%ld,highbytes=%ld,overlapped=%p: stub.\n",
2427           hFile, dwReserved, nNumberOfBytesToUnlockLow, nNumberOfBytesToUnlockHigh,
2428           lpOverlapped);
2429         if (dwReserved == 0)
2430                 SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
2431         else
2432         {
2433                 ERR("reserved == %ld: Supposed to be 0??\n", dwReserved);
2434                 SetLastError(ERROR_INVALID_PARAMETER);
2435         }
2436
2437         return FALSE;
2438 }
2439
2440
2441 #if 0
2442
2443 struct DOS_FILE_LOCK {
2444   struct DOS_FILE_LOCK *        next;
2445   DWORD                         base;
2446   DWORD                         len;
2447   DWORD                         processId;
2448   FILE_OBJECT *                 dos_file;
2449 /*  char *                      unix_name;*/
2450 };
2451
2452 typedef struct DOS_FILE_LOCK DOS_FILE_LOCK;
2453
2454 static DOS_FILE_LOCK *locks = NULL;
2455 static void DOS_RemoveFileLocks(FILE_OBJECT *file);
2456
2457
2458 /* Locks need to be mirrored because unix file locking is based
2459  * on the pid. Inside of wine there can be multiple WINE processes
2460  * that share the same unix pid.
2461  * Read's and writes should check these locks also - not sure
2462  * how critical that is at this point (FIXME).
2463  */
2464
2465 static BOOL DOS_AddLock(FILE_OBJECT *file, struct flock *f)
2466 {
2467   DOS_FILE_LOCK *curr;
2468   DWORD         processId;
2469
2470   processId = GetCurrentProcessId();
2471
2472   /* check if lock overlaps a current lock for the same file */
2473 #if 0
2474   for (curr = locks; curr; curr = curr->next) {
2475     if (strcmp(curr->unix_name, file->unix_name) == 0) {
2476       if ((f->l_start == curr->base) && (f->l_len == curr->len))
2477         return TRUE;/* region is identic */
2478       if ((f->l_start < (curr->base + curr->len)) &&
2479           ((f->l_start + f->l_len) > curr->base)) {
2480         /* region overlaps */
2481         return FALSE;
2482       }
2483     }
2484   }
2485 #endif
2486
2487   curr = HeapAlloc( GetProcessHeap(), 0, sizeof(DOS_FILE_LOCK) );
2488   curr->processId = GetCurrentProcessId();
2489   curr->base = f->l_start;
2490   curr->len = f->l_len;
2491 /*  curr->unix_name = HEAP_strdupA( GetProcessHeap(), 0, file->unix_name);*/
2492   curr->next = locks;
2493   curr->dos_file = file;
2494   locks = curr;
2495   return TRUE;
2496 }
2497
2498 static void DOS_RemoveFileLocks(FILE_OBJECT *file)
2499 {
2500   DWORD         processId;
2501   DOS_FILE_LOCK **curr;
2502   DOS_FILE_LOCK *rem;
2503
2504   processId = GetCurrentProcessId();
2505   curr = &locks;
2506   while (*curr) {
2507     if ((*curr)->dos_file == file) {
2508       rem = *curr;
2509       *curr = (*curr)->next;
2510 /*      HeapFree( GetProcessHeap(), 0, rem->unix_name );*/
2511       HeapFree( GetProcessHeap(), 0, rem );
2512     }
2513     else
2514       curr = &(*curr)->next;
2515   }
2516 }
2517
2518 static BOOL DOS_RemoveLock(FILE_OBJECT *file, struct flock *f)
2519 {
2520   DWORD         processId;
2521   DOS_FILE_LOCK **curr;
2522   DOS_FILE_LOCK *rem;
2523
2524   processId = GetCurrentProcessId();
2525   for (curr = &locks; *curr; curr = &(*curr)->next) {
2526     if ((*curr)->processId == processId &&
2527         (*curr)->dos_file == file &&
2528         (*curr)->base == f->l_start &&
2529         (*curr)->len == f->l_len) {
2530       /* this is the same lock */
2531       rem = *curr;
2532       *curr = (*curr)->next;
2533 /*      HeapFree( GetProcessHeap(), 0, rem->unix_name );*/
2534       HeapFree( GetProcessHeap(), 0, rem );
2535       return TRUE;
2536     }
2537   }
2538   /* no matching lock found */
2539   return FALSE;
2540 }
2541
2542
2543 /**************************************************************************
2544  *           LockFile   (KERNEL32.@)
2545  */
2546 BOOL WINAPI LockFile(
2547         HFILE hFile,DWORD dwFileOffsetLow,DWORD dwFileOffsetHigh,
2548         DWORD nNumberOfBytesToLockLow,DWORD nNumberOfBytesToLockHigh )
2549 {
2550   struct flock f;
2551   FILE_OBJECT *file;
2552
2553   TRACE("handle %d offsetlow=%ld offsethigh=%ld nbyteslow=%ld nbyteshigh=%ld\n",
2554                hFile, dwFileOffsetLow, dwFileOffsetHigh,
2555                nNumberOfBytesToLockLow, nNumberOfBytesToLockHigh);
2556
2557   if (dwFileOffsetHigh || nNumberOfBytesToLockHigh) {
2558     FIXME("Unimplemented bytes > 32bits\n");
2559     return FALSE;
2560   }
2561
2562   f.l_start = dwFileOffsetLow;
2563   f.l_len = nNumberOfBytesToLockLow;
2564   f.l_whence = SEEK_SET;
2565   f.l_pid = 0;
2566   f.l_type = F_WRLCK;
2567
2568   if (!(file = FILE_GetFile(hFile,0,NULL))) return FALSE;
2569
2570   /* shadow locks internally */
2571   if (!DOS_AddLock(file, &f)) {
2572     SetLastError( ERROR_LOCK_VIOLATION );
2573     return FALSE;
2574   }
2575
2576   /* FIXME: Unix locking commented out for now, doesn't work with Excel */
2577 #ifdef USE_UNIX_LOCKS
2578   if (fcntl(file->unix_handle, F_SETLK, &f) == -1) {
2579     if (errno == EACCES || errno == EAGAIN) {
2580       SetLastError( ERROR_LOCK_VIOLATION );
2581     }
2582     else {
2583       FILE_SetDosError();
2584     }
2585     /* remove our internal copy of the lock */
2586     DOS_RemoveLock(file, &f);
2587     return FALSE;
2588   }
2589 #endif
2590   return TRUE;
2591 }
2592
2593
2594 /**************************************************************************
2595  *           UnlockFile   (KERNEL32.@)
2596  */
2597 BOOL WINAPI UnlockFile(
2598         HFILE hFile,DWORD dwFileOffsetLow,DWORD dwFileOffsetHigh,
2599         DWORD nNumberOfBytesToUnlockLow,DWORD nNumberOfBytesToUnlockHigh )
2600 {
2601   FILE_OBJECT *file;
2602   struct flock f;
2603
2604   TRACE("handle %d offsetlow=%ld offsethigh=%ld nbyteslow=%ld nbyteshigh=%ld\n",
2605                hFile, dwFileOffsetLow, dwFileOffsetHigh,
2606                nNumberOfBytesToUnlockLow, nNumberOfBytesToUnlockHigh);
2607
2608   if (dwFileOffsetHigh || nNumberOfBytesToUnlockHigh) {
2609     WARN("Unimplemented bytes > 32bits\n");
2610     return FALSE;
2611   }
2612
2613   f.l_start = dwFileOffsetLow;
2614   f.l_len = nNumberOfBytesToUnlockLow;
2615   f.l_whence = SEEK_SET;
2616   f.l_pid = 0;
2617   f.l_type = F_UNLCK;
2618
2619   if (!(file = FILE_GetFile(hFile,0,NULL))) return FALSE;
2620
2621   DOS_RemoveLock(file, &f);     /* ok if fails - may be another wine */
2622
2623   /* FIXME: Unix locking commented out for now, doesn't work with Excel */
2624 #ifdef USE_UNIX_LOCKS
2625   if (fcntl(file->unix_handle, F_SETLK, &f) == -1) {
2626     FILE_SetDosError();
2627     return FALSE;
2628   }
2629 #endif
2630   return TRUE;
2631 }
2632 #endif
2633
2634 /**************************************************************************
2635  * GetFileAttributesExA [KERNEL32.@]
2636  */
2637 BOOL WINAPI GetFileAttributesExA(
2638         LPCSTR lpFileName, GET_FILEEX_INFO_LEVELS fInfoLevelId,
2639         LPVOID lpFileInformation)
2640 {
2641     DOS_FULL_NAME full_name;
2642     BY_HANDLE_FILE_INFORMATION info;
2643
2644     if (lpFileName == NULL) return FALSE;
2645     if (lpFileInformation == NULL) return FALSE;
2646
2647     if (fInfoLevelId == GetFileExInfoStandard) {
2648         LPWIN32_FILE_ATTRIBUTE_DATA lpFad =
2649             (LPWIN32_FILE_ATTRIBUTE_DATA) lpFileInformation;
2650         if (!DOSFS_GetFullName( lpFileName, TRUE, &full_name )) return FALSE;
2651         if (!FILE_Stat( full_name.long_name, &info )) return FALSE;
2652
2653         lpFad->dwFileAttributes = info.dwFileAttributes;
2654         lpFad->ftCreationTime   = info.ftCreationTime;
2655         lpFad->ftLastAccessTime = info.ftLastAccessTime;
2656         lpFad->ftLastWriteTime  = info.ftLastWriteTime;
2657         lpFad->nFileSizeHigh    = info.nFileSizeHigh;
2658         lpFad->nFileSizeLow     = info.nFileSizeLow;
2659     }
2660     else {
2661         FIXME("invalid info level %d!\n", fInfoLevelId);
2662         return FALSE;
2663     }
2664
2665     return TRUE;
2666 }
2667
2668
2669 /**************************************************************************
2670  * GetFileAttributesExW [KERNEL32.@]
2671  */
2672 BOOL WINAPI GetFileAttributesExW(
2673         LPCWSTR lpFileName, GET_FILEEX_INFO_LEVELS fInfoLevelId,
2674         LPVOID lpFileInformation)
2675 {
2676     LPSTR nameA = HEAP_strdupWtoA( GetProcessHeap(), 0, lpFileName );
2677     BOOL res =
2678         GetFileAttributesExA( nameA, fInfoLevelId, lpFileInformation);
2679     HeapFree( GetProcessHeap(), 0, nameA );
2680     return res;
2681 }