files/file.c

   1 /*
   2  * File handling functions
   3  *
   4  * Copyright 1993 John Burton
   5  * Copyright 1996 Alexandre Julliard
   6  */
   7
   8 #include <assert.h>
   9 #include <ctype.h>
  10 #include <errno.h>
  11 #include <fcntl.h>
  12 #include <stdio.h>
  13 #include <stdlib.h>
  14 #include <string.h>
  15 #include <sys/errno.h>
  16 #include <sys/types.h>
  17 #include <sys/stat.h>
  18 #include <sys/mman.h>
  19 #include <time.h>
  20 #include <unistd.h>
  21 #include <utime.h>
  22
  23 #include "windows.h"
  24 #include "winerror.h"
  25 #include "drive.h"
  26 #include "file.h"
  27 #include "global.h"
  28 #include "heap.h"
  29 #include "msdos.h"
  30 #include "options.h"
  31 #include "ldt.h"
  32 #include "process.h"
  33 #include "task.h"
  34 #include "debug.h"
  35
  36 #if defined(MAP_ANONYMOUS) && !defined(MAP_ANON)
  37 #define MAP_ANON MAP_ANONYMOUS
  38 #endif
  39
  40 static BOOL32 FILE_Read(K32OBJ *ptr, LPVOID lpBuffer, DWORD nNumberOfChars,
  41                         LPDWORD lpNumberOfChars, LPOVERLAPPED lpOverlapped);
  42 static BOOL32 FILE_Write(K32OBJ *ptr, LPCVOID lpBuffer, DWORD nNumberOfChars,
  43                          LPDWORD lpNumberOfChars, LPOVERLAPPED lpOverlapped);
  44 static void FILE_Destroy( K32OBJ *obj );
  45
  46 const K32OBJ_OPS FILE_Ops =
  47 {
  48     /* Object cannot be waited upon (FIXME: for now) */
  49     NULL,              /* signaled */
  50     NULL,              /* satisfied */
  51     NULL,              /* add_wait */
  52     NULL,              /* remove_wait */
  53     FILE_Read,          /* read */
  54     FILE_Write,        /* write */
  55     FILE_Destroy       /* destroy */
  56 };
  57
  58 struct DOS_FILE_LOCK {
  59   struct DOS_FILE_LOCK *        next;
  60   DWORD                         base;
  61   DWORD                         len;
  62   DWORD                         processId;
  63   FILE_OBJECT *                 dos_file;
  64   char *                        unix_name;
  65 };
  66
  67 typedef struct DOS_FILE_LOCK DOS_FILE_LOCK;
  68
  69 static DOS_FILE_LOCK *locks = NULL;
  70 static void DOS_RemoveFileLocks(FILE_OBJECT *file);
  71
  72 /***********************************************************************
  73  *           FILE_Alloc
  74  *
  75  * Allocate a file.
  76  */
  77 static HFILE32 FILE_Alloc( FILE_OBJECT **file )
  78 {
  79     HFILE32 handle;
  80     *file = HeapAlloc( SystemHeap, 0, sizeof(FILE_OBJECT) );
  81     if (!*file)
  82     {
  83         DOS_ERROR( ER_TooManyOpenFiles, EC_ProgramError, SA_Abort, EL_Disk );
  84         return NULL;
  85     }
  86     (*file)->header.type = K32OBJ_FILE;
  87     (*file)->header.refcount = 0;
  88     (*file)->unix_handle = -1;
  89     (*file)->unix_name = NULL;
  90     (*file)->type = FILE_TYPE_DISK;
  91
  92     handle = HANDLE_Alloc( PROCESS_Current(), &(*file)->header,
  93                            FILE_ALL_ACCESS | GENERIC_READ |
  94                            GENERIC_WRITE | GENERIC_EXECUTE /*FIXME*/, TRUE );
  95     /* If the allocation failed, the object is already destroyed */
  96     if (handle == INVALID_HANDLE_VALUE32) *file = NULL;
  97     return handle;
  98 }
  99
 100
 101 /* FIXME: lpOverlapped is ignored */
 102 static BOOL32 FILE_Read(K32OBJ *ptr, LPVOID lpBuffer, DWORD nNumberOfChars,
 103                         LPDWORD lpNumberOfChars, LPOVERLAPPED lpOverlapped)
 104 {
 105         FILE_OBJECT *file = (FILE_OBJECT *)ptr;
 106         int result;
 107
 108         TRACE(file, "%p %p %ld\n", ptr, lpBuffer,
 109                      nNumberOfChars);
 110
 111         if (nNumberOfChars == 0) {
 112                 *lpNumberOfChars = 0;  /* FIXME: does this change */
 113                 return TRUE;
 114         }
 115
 116         if ((result = read(file->unix_handle, lpBuffer, nNumberOfChars)) == -1)
 117         {
 118             FILE_SetDosError();
 119             return FALSE;
 120         }
 121         *lpNumberOfChars = result;
 122         return TRUE;
 123 }
 124
 125 /**
 126  *  experimentation yields that WriteFile:
 127  *      o does not truncate on write of 0
 128  *      o always changes the *lpNumberOfChars to actual number of
 129  *        characters written
 130  *      o write of 0 nNumberOfChars returns TRUE
 131  */
 132 static BOOL32 FILE_Write(K32OBJ *ptr, LPCVOID lpBuffer, DWORD nNumberOfChars,
 133                          LPDWORD lpNumberOfChars, LPOVERLAPPED lpOverlapped)
 134 {
 135         FILE_OBJECT *file = (FILE_OBJECT *)ptr;
 136         int result;
 137
 138         TRACE(file, "%p %p %ld\n", ptr, lpBuffer,
 139                       nNumberOfChars);
 140
 141         *lpNumberOfChars = 0;
 142
 143         /*
 144          * I assume this loop around EAGAIN is here because
 145          * win32 doesn't have interrupted system calls
 146          */
 147
 148         for (;;)
 149         {
 150                 result = write(file->unix_handle, lpBuffer, nNumberOfChars);
 151                 if (result != -1) {
 152                         *lpNumberOfChars = result;
 153                         return TRUE;
 154                 }
 155                 if (errno != EINTR) {
 156                         FILE_SetDosError();
 157                         return FALSE;
 158                 }
 159         }
 160 }
 161
 162
 163
 164 /***********************************************************************
 165  *           FILE_Destroy
 166  *
 167  * Destroy a DOS file.
 168  */
 169 static void FILE_Destroy( K32OBJ *ptr )
 170 {
 171     FILE_OBJECT *file = (FILE_OBJECT *)ptr;
 172     assert( ptr->type == K32OBJ_FILE );
 173
 174     DOS_RemoveFileLocks(file);
 175
 176     if (file->unix_handle != -1) close( file->unix_handle );
 177     if (file->unix_name) HeapFree( SystemHeap, 0, file->unix_name );
 178     ptr->type = K32OBJ_UNKNOWN;
 179     HeapFree( SystemHeap, 0, file );
 180 }
 181
 182
 183 /***********************************************************************
 184  *           FILE_GetFile
 185  *
 186  * Return the DOS file associated to a task file handle. FILE_ReleaseFile must
 187  * be called to release the file.
 188  */
 189 static FILE_OBJECT *FILE_GetFile( HFILE32 handle )
 190 {
 191     return (FILE_OBJECT *)HANDLE_GetObjPtr( PROCESS_Current(), handle,
 192                                             K32OBJ_FILE, 0 /*FIXME*/ );
 193 }
 194
 195
 196 /***********************************************************************
 197  *           FILE_ReleaseFile
 198  *
 199  * Release a DOS file obtained with FILE_GetFile.
 200  */
 201 static void FILE_ReleaseFile( FILE_OBJECT *file )
 202 {
 203     K32OBJ_DecCount( &file->header );
 204 }
 205
 206
 207 /***********************************************************************
 208  *           FILE_GetUnixHandle
 209  *
 210  * Return the Unix handle associated to a file handle.
 211  */
 212 int FILE_GetUnixHandle( HFILE32 hFile )
 213 {
 214     FILE_OBJECT *file;
 215     int ret;
 216
 217     if (!(file = FILE_GetFile( hFile ))) return -1;
 218     ret = file->unix_handle;
 219     FILE_ReleaseFile( file );
 220     return ret;
 221 }
 222
 223
 224 /***********************************************************************
 225  *           FILE_SetDosError
 226  *
 227  * Set the DOS error code from errno.
 228  */
 229 void FILE_SetDosError(void)
 230 {
 231     int save_errno = errno; /* errno gets overwritten by printf */
 232
 233     TRACE(file, "errno = %d %s\n", errno, strerror(errno));
 234     switch (save_errno)
 235     {
 236     case EAGAIN:
 237         DOS_ERROR( ER_ShareViolation, EC_Temporary, SA_Retry, EL_Disk );
 238         break;
 239     case EBADF:
 240         DOS_ERROR( ER_InvalidHandle, EC_ProgramError, SA_Abort, EL_Disk );
 241         break;
 242     case ENOSPC:
 243         DOS_ERROR( ER_DiskFull, EC_MediaError, SA_Abort, EL_Disk );
 244         break;
 245     case EACCES:
 246     case EPERM:
 247     case EROFS:
 248         DOS_ERROR( ER_AccessDenied, EC_AccessDenied, SA_Abort, EL_Disk );
 249         break;
 250     case EBUSY:
 251         DOS_ERROR( ER_LockViolation, EC_AccessDenied, SA_Abort, EL_Disk );
 252         break;
 253     case ENOENT:
 254         DOS_ERROR( ER_FileNotFound, EC_NotFound, SA_Abort, EL_Disk );
 255         break;
 256     case EISDIR:
 257         DOS_ERROR( ER_CanNotMakeDir, EC_AccessDenied, SA_Abort, EL_Unknown );
 258         break;
 259     case ENFILE:
 260     case EMFILE:
 261         DOS_ERROR( ER_NoMoreFiles, EC_MediaError, SA_Abort, EL_Unknown );
 262         break;
 263     case EEXIST:
 264         DOS_ERROR( ER_FileExists, EC_Exists, SA_Abort, EL_Disk );
 265         break;
 266     case EINVAL:
 267     case ESPIPE:
 268         DOS_ERROR( ER_SeekError, EC_NotFound, SA_Ignore, EL_Disk );
 269         break;
 270     case ENOTEMPTY:
 271         DOS_ERROR( ERROR_DIR_NOT_EMPTY, EC_Exists, SA_Ignore, EL_Disk );
 272         break;
 273     default:
 274         perror( "int21: unknown errno" );
 275         DOS_ERROR( ER_GeneralFailure, EC_SystemFailure, SA_Abort, EL_Unknown );
 276         break;
 277     }
 278     errno = save_errno;
 279 }
 280
 281
 282 /***********************************************************************
 283  *           FILE_DupUnixHandle
 284  *
 285  * Duplicate a Unix handle into a task handle.
 286  */
 287 HFILE32 FILE_DupUnixHandle( int fd )
 288 {
 289     HFILE32 handle;
 290     FILE_OBJECT *file;
 291
 292     if ((handle = FILE_Alloc( &file )) != INVALID_HANDLE_VALUE32)
 293     {
 294         if ((file->unix_handle = dup(fd)) == -1)
 295         {
 296             FILE_SetDosError();
 297             CloseHandle( handle );
 298             return INVALID_HANDLE_VALUE32;
 299         }
 300     }
 301     return handle;
 302 }
 303
 304
 305 /***********************************************************************
 306  *           FILE_OpenUnixFile
 307  */
 308 HFILE32 FILE_OpenUnixFile( const char *name, int mode )
 309 {
 310     HFILE32 handle;
 311     FILE_OBJECT *file;
 312     struct stat st;
 313
 314     if ((handle = FILE_Alloc( &file )) == INVALID_HANDLE_VALUE32)
 315         return INVALID_HANDLE_VALUE32;
 316
 317     if ((file->unix_handle = open( name, mode, 0666 )) == -1)
 318     {
 319         if (!Options.failReadOnly && (mode == O_RDWR))
 320             file->unix_handle = open( name, O_RDONLY );
 321     }
 322     if ((file->unix_handle == -1) || (fstat( file->unix_handle, &st ) == -1))
 323     {
 324         FILE_SetDosError();
 325         CloseHandle( handle );
 326         return INVALID_HANDLE_VALUE32;
 327     }
 328     if (S_ISDIR(st.st_mode))
 329     {
 330         DOS_ERROR( ER_AccessDenied, EC_AccessDenied, SA_Abort, EL_Disk );
 331         CloseHandle( handle );
 332         return INVALID_HANDLE_VALUE32;
 333     }
 334
 335     /* File opened OK, now fill the FILE_OBJECT */
 336
 337     file->unix_name = HEAP_strdupA( SystemHeap, 0, name );
 338     return handle;
 339 }
 340
 341
 342 /***********************************************************************
 343  *           FILE_Open
 344  */
 345 HFILE32 FILE_Open( LPCSTR path, INT32 mode )
 346 {
 347     DOS_FULL_NAME full_name;
 348     const char *unixName;
 349
 350     TRACE(file, "'%s' %04x\n", path, mode );
 351
 352     if (!path) return HFILE_ERROR32;
 353
 354     if (DOSFS_IsDevice( path ))
 355     {
 356         HFILE32 ret;
 357
 358         TRACE(file, "opening device '%s'\n", path );
 359
 360         if (HFILE_ERROR32!=(ret=DOSFS_OpenDevice( path, mode )))
 361                 return ret;
 362
 363         /* Do not silence this please. It is a critical error. -MM */
 364         ERR(file, "Couldn't open device '%s'!\n",path);
 365         DOS_ERROR( ER_FileNotFound, EC_NotFound, SA_Abort, EL_Disk );
 366         return HFILE_ERROR32;
 367
 368     }
 369     else /* check for filename, don't check for last entry if creating */
 370     {
 371         if (!DOSFS_GetFullName( path, !(mode & O_CREAT), &full_name ))
 372             return HFILE_ERROR32;
 373         unixName = full_name.long_name;
 374     }
 375     return FILE_OpenUnixFile( unixName, mode );
 376 }
 377
 378
 379 /***********************************************************************
 380  *           FILE_Create
 381  */
 382 static HFILE32 FILE_Create( LPCSTR path, int mode, int unique )
 383 {
 384     HFILE32 handle;
 385     FILE_OBJECT *file;
 386     DOS_FULL_NAME full_name;
 387
 388     TRACE(file, "'%s' %04x %d\n", path, mode, unique );
 389
 390     if (!path) return INVALID_HANDLE_VALUE32;
 391
 392     if (DOSFS_IsDevice( path ))
 393     {
 394         WARN(file, "cannot create DOS device '%s'!\n", path);
 395         DOS_ERROR( ER_AccessDenied, EC_NotFound, SA_Abort, EL_Disk );
 396         return INVALID_HANDLE_VALUE32;
 397     }
 398
 399     if ((handle = FILE_Alloc( &file )) == INVALID_HANDLE_VALUE32)
 400         return INVALID_HANDLE_VALUE32;
 401
 402     if (!DOSFS_GetFullName( path, FALSE, &full_name ))
 403     {
 404         CloseHandle( handle );
 405         return INVALID_HANDLE_VALUE32;
 406     }
 407     if ((file->unix_handle = open( full_name.long_name,
 408                            O_CREAT | O_TRUNC | O_RDWR | (unique ? O_EXCL : 0),
 409                            mode )) == -1)
 410     {
 411         FILE_SetDosError();
 412         CloseHandle( handle );
 413         return INVALID_HANDLE_VALUE32;
 414     }
 415
 416     /* File created OK, now fill the FILE_OBJECT */
 417
 418     file->unix_name = HEAP_strdupA( SystemHeap, 0, full_name.long_name );
 419     return handle;
 420 }
 421
 422
 423 /***********************************************************************
 424  *           FILE_FillInfo
 425  *
 426  * Fill a file information from a struct stat.
 427  */
 428 static void FILE_FillInfo( struct stat *st, BY_HANDLE_FILE_INFORMATION *info )
 429 {
 430     if (S_ISDIR(st->st_mode))
 431         info->dwFileAttributes = FILE_ATTRIBUTE_DIRECTORY;
 432     else
 433         info->dwFileAttributes = FILE_ATTRIBUTE_ARCHIVE;
 434     if (!(st->st_mode & S_IWUSR))
 435         info->dwFileAttributes |= FILE_ATTRIBUTE_READONLY;
 436
 437     DOSFS_UnixTimeToFileTime( st->st_mtime, &info->ftCreationTime, 0 );
 438     DOSFS_UnixTimeToFileTime( st->st_mtime, &info->ftLastWriteTime, 0 );
 439     DOSFS_UnixTimeToFileTime( st->st_atime, &info->ftLastAccessTime, 0 );
 440
 441     info->dwVolumeSerialNumber = 0;  /* FIXME */
 442     info->nFileSizeHigh = 0;
 443     info->nFileSizeLow  = S_ISDIR(st->st_mode) ? 0 : st->st_size;
 444     info->nNumberOfLinks = st->st_nlink;
 445     info->nFileIndexHigh = 0;
 446     info->nFileIndexLow  = st->st_ino;
 447 }
 448
 449
 450 /***********************************************************************
 451  *           FILE_Stat
 452  *
 453  * Stat a Unix path name. Return TRUE if OK.
 454  */
 455 BOOL32 FILE_Stat( LPCSTR unixName, BY_HANDLE_FILE_INFORMATION *info )
 456 {
 457     struct stat st;
 458
 459     if (!unixName || !info) return FALSE;
 460
 461     if (stat( unixName, &st ) == -1)
 462     {
 463         FILE_SetDosError();
 464         return FALSE;
 465     }
 466     FILE_FillInfo( &st, info );
 467     return TRUE;
 468 }
 469
 470
 471 /***********************************************************************
 472  *             GetFileInformationByHandle   (KERNEL32.219)
 473  */
 474 DWORD WINAPI GetFileInformationByHandle( HFILE32 hFile,
 475                                          BY_HANDLE_FILE_INFORMATION *info )
 476 {
 477     FILE_OBJECT *file;
 478     DWORD ret = 0;
 479     struct stat st;
 480
 481     if (!info) return 0;
 482
 483     if (!(file = FILE_GetFile( hFile ))) return 0;
 484     if (fstat( file->unix_handle, &st ) == -1) FILE_SetDosError();
 485     else
 486     {
 487         FILE_FillInfo( &st, info );
 488         ret = 1;
 489     }
 490     FILE_ReleaseFile( file );
 491     return ret;
 492 }
 493
 494
 495 /**************************************************************************
 496  *           GetFileAttributes16   (KERNEL.420)
 497  */
 498 DWORD WINAPI GetFileAttributes16( LPCSTR name )
 499 {
 500     return GetFileAttributes32A( name );
 501 }
 502
 503
 504 /**************************************************************************
 505  *           GetFileAttributes32A   (KERNEL32.217)
 506  */
 507 DWORD WINAPI GetFileAttributes32A( LPCSTR name )
 508 {
 509     DOS_FULL_NAME full_name;
 510     BY_HANDLE_FILE_INFORMATION info;
 511
 512     if (name == NULL) return -1;
 513
 514     if (!DOSFS_GetFullName( name, TRUE, &full_name )) return -1;
 515     if (!FILE_Stat( full_name.long_name, &info )) return -1;
 516     return info.dwFileAttributes;
 517 }
 518
 519
 520 /**************************************************************************
 521  *           GetFileAttributes32W   (KERNEL32.218)
 522  */
 523 DWORD WINAPI GetFileAttributes32W( LPCWSTR name )
 524 {
 525     LPSTR nameA = HEAP_strdupWtoA( GetProcessHeap(), 0, name );
 526     DWORD res = GetFileAttributes32A( nameA );
 527     HeapFree( GetProcessHeap(), 0, nameA );
 528     return res;
 529 }
 530
 531
 532 /***********************************************************************
 533  *           GetFileSize   (KERNEL32.220)
 534  */
 535 DWORD WINAPI GetFileSize( HFILE32 hFile, LPDWORD filesizehigh )
 536 {
 537     BY_HANDLE_FILE_INFORMATION info;
 538     if (!GetFileInformationByHandle( hFile, &info )) return 0;
 539     if (filesizehigh) *filesizehigh = info.nFileSizeHigh;
 540     return info.nFileSizeLow;
 541 }
 542
 543
 544 /***********************************************************************
 545  *           GetFileTime   (KERNEL32.221)
 546  */
 547 BOOL32 WINAPI GetFileTime( HFILE32 hFile, FILETIME *lpCreationTime,
 548                            FILETIME *lpLastAccessTime,
 549                            FILETIME *lpLastWriteTime )
 550 {
 551     BY_HANDLE_FILE_INFORMATION info;
 552     if (!GetFileInformationByHandle( hFile, &info )) return FALSE;
 553     if (lpCreationTime)   *lpCreationTime   = info.ftCreationTime;
 554     if (lpLastAccessTime) *lpLastAccessTime = info.ftLastAccessTime;
 555     if (lpLastWriteTime)  *lpLastWriteTime  = info.ftLastWriteTime;
 556     return TRUE;
 557 }
 558
 559 /***********************************************************************
 560  *           CompareFileTime   (KERNEL32.28)
 561  */
 562 INT32 WINAPI CompareFileTime( LPFILETIME x, LPFILETIME y )
 563 {
 564         if (!x || !y) return -1;
 565
 566         if (x->dwHighDateTime > y->dwHighDateTime)
 567                 return 1;
 568         if (x->dwHighDateTime < y->dwHighDateTime)
 569                 return -1;
 570         if (x->dwLowDateTime > y->dwLowDateTime)
 571                 return 1;
 572         if (x->dwLowDateTime < y->dwLowDateTime)
 573                 return -1;
 574         return 0;
 575 }
 576
 577 /***********************************************************************
 578  *           FILE_Dup
 579  *
 580  * dup() function for DOS handles.
 581  */
 582 HFILE32 FILE_Dup( HFILE32 hFile )
 583 {
 584     HFILE32 handle;
 585
 586     TRACE(file, "FILE_Dup for handle %d\n", hFile );
 587     if (!DuplicateHandle( GetCurrentProcess(), hFile, GetCurrentProcess(),
 588                           &handle, FILE_ALL_ACCESS /* FIXME */, FALSE, 0 ))
 589         handle = HFILE_ERROR32;
 590     TRACE(file, "FILE_Dup return handle %d\n", handle );
 591     return handle;
 592 }
 593
 594
 595 /***********************************************************************
 596  *           FILE_Dup2
 597  *
 598  * dup2() function for DOS handles.
 599  */
 600 HFILE32 FILE_Dup2( HFILE32 hFile1, HFILE32 hFile2 )
 601 {
 602     FILE_OBJECT *file;
 603
 604     TRACE(file, "FILE_Dup2 for handle %d\n", hFile1 );
 605     /* FIXME: should use DuplicateHandle */
 606     if (!(file = FILE_GetFile( hFile1 ))) return HFILE_ERROR32;
 607     if (!HANDLE_SetObjPtr( PROCESS_Current(), hFile2, &file->header, 0 ))
 608         hFile2 = HFILE_ERROR32;
 609     FILE_ReleaseFile( file );
 610     return hFile2;
 611 }
 612
 613
 614 /***********************************************************************
 615  *           GetTempFileName16   (KERNEL.97)
 616  */
 617 UINT16 WINAPI GetTempFileName16( BYTE drive, LPCSTR prefix, UINT16 unique,
 618                                  LPSTR buffer )
 619 {
 620     char temppath[144];
 621
 622     if (!(drive & ~TF_FORCEDRIVE)) /* drive 0 means current default drive */
 623         drive |= DRIVE_GetCurrentDrive() + 'A';
 624
 625     if ((drive & TF_FORCEDRIVE) &&
 626         !DRIVE_IsValid( toupper(drive & ~TF_FORCEDRIVE) - 'A' ))
 627     {
 628         drive &= ~TF_FORCEDRIVE;
 629         WARN(file, "invalid drive %d specified\n", drive );
 630     }
 631
 632     if (drive & TF_FORCEDRIVE)
 633         sprintf(temppath,"%c:", drive & ~TF_FORCEDRIVE );
 634     else
 635     {
 636         GetTempPath32A( 132, temppath );
 637         strcat( temppath, "\\" );
 638     }
 639     return (UINT16)GetTempFileName32A( temppath, prefix, unique, buffer );
 640 }
 641
 642
 643 /***********************************************************************
 644  *           GetTempFileName32A   (KERNEL32.290)
 645  */
 646 UINT32 WINAPI GetTempFileName32A( LPCSTR path, LPCSTR prefix, UINT32 unique,
 647                                   LPSTR buffer)
 648 {
 649     DOS_FULL_NAME full_name;
 650     int i;
 651     LPSTR p;
 652     UINT32 num = unique ? (unique & 0xffff) : time(NULL) & 0xffff;
 653
 654     if ( !path || !prefix || !buffer ) return 0;
 655
 656     strcpy( buffer, path );
 657     p = buffer + strlen(buffer);
 658
 659     /* add a \, if there isn't one and path is more than just the drive letter ... */
 660     if ( !((strlen(buffer) == 2) && (buffer[1] == ':'))
 661         && ((p == buffer) || (p[-1] != '\\'))) *p++ = '\\';
 662
 663     *p++ = '~';
 664     for (i = 3; (i > 0) && (*prefix); i--) *p++ = *prefix++;
 665     sprintf( p, "%04x.tmp", num );
 666
 667     /* Now try to create it */
 668
 669     if (!unique)
 670     {
 671         do
 672         {
 673             HFILE32 handle = FILE_Create( buffer, 0666, TRUE );
 674             if (handle != INVALID_HANDLE_VALUE32)
 675             {  /* We created it */
 676                 TRACE(file, "created %s\n",
 677                               buffer);
 678                 CloseHandle( handle );
 679                 break;
 680             }
 681             if (DOS_ExtendedError != ER_FileExists)
 682                 break;  /* No need to go on */
 683             num++;
 684             sprintf( p, "%04x.tmp", num );
 685         } while (num != (unique & 0xffff));
 686     }
 687
 688     /* Get the full path name */
 689
 690     if (DOSFS_GetFullName( buffer, FALSE, &full_name ))
 691     {
 692         /* Check if we have write access in the directory */
 693         if ((p = strrchr( full_name.long_name, '/' ))) *p = '\0';
 694         if (access( full_name.long_name, W_OK ) == -1)
 695             WARN(file, "returns '%s', which doesn't seem to be writeable.\n",
 696                  buffer);
 697     }
 698     TRACE(file, "returning %s\n", buffer );
 699     return unique ? unique : num;
 700 }
 701
 702
 703 /***********************************************************************
 704  *           GetTempFileName32W   (KERNEL32.291)
 705  */
 706 UINT32 WINAPI GetTempFileName32W( LPCWSTR path, LPCWSTR prefix, UINT32 unique,
 707                                   LPWSTR buffer )
 708 {
 709     LPSTR   patha,prefixa;
 710     char    buffera[144];
 711     UINT32  ret;
 712
 713     if (!path) return 0;
 714     patha   = HEAP_strdupWtoA( GetProcessHeap(), 0, path );
 715     prefixa = HEAP_strdupWtoA( GetProcessHeap(), 0, prefix );
 716     ret     = GetTempFileName32A( patha, prefixa, unique, buffera );
 717     lstrcpyAtoW( buffer, buffera );
 718     HeapFree( GetProcessHeap(), 0, patha );
 719     HeapFree( GetProcessHeap(), 0, prefixa );
 720     return ret;
 721 }
 722
 723
 724 /***********************************************************************
 725  *           FILE_DoOpenFile
 726  *
 727  * Implementation of OpenFile16() and OpenFile32().
 728  */
 729 static HFILE32 FILE_DoOpenFile( LPCSTR name, OFSTRUCT *ofs, UINT32 mode,
 730                                 BOOL32 win32 )
 731 {
 732     HFILE32 hFileRet;
 733     FILETIME filetime;
 734     WORD filedatetime[2];
 735     DOS_FULL_NAME full_name;
 736     char *p;
 737     int unixMode;
 738
 739     if (!ofs) return HFILE_ERROR32;
 740
 741
 742     ofs->cBytes = sizeof(OFSTRUCT);
 743     ofs->nErrCode = 0;
 744     if (mode & OF_REOPEN) name = ofs->szPathName;
 745
 746     if (!name) {
 747         ERR(file, "called with `name' set to NULL ! Please debug.\n");
 748         return HFILE_ERROR32;
 749     }
 750
 751     TRACE(file, "%s %04x\n", name, mode );
 752
 753     /* the watcom 10.6 IDE relies on a valid path returned in ofs->szPathName
 754        Are there any cases where getting the path here is wrong?
 755        Uwe Bonnes 1997 Apr 2 */
 756     if (!GetFullPathName32A( name, sizeof(ofs->szPathName),
 757                              ofs->szPathName, NULL )) goto error;
 758
 759     /* OF_PARSE simply fills the structure */
 760
 761     if (mode & OF_PARSE)
 762     {
 763         ofs->fFixedDisk = (GetDriveType16( ofs->szPathName[0]-'A' )
 764                            != DRIVE_REMOVABLE);
 765         TRACE(file, "(%s): OF_PARSE, res = '%s'\n",
 766                       name, ofs->szPathName );
 767         return 0;
 768     }
 769
 770     /* OF_CREATE is completely different from all other options, so
 771        handle it first */
 772
 773     if (mode & OF_CREATE)
 774     {
 775         if ((hFileRet = FILE_Create(name,0666,FALSE))== INVALID_HANDLE_VALUE32)
 776             goto error;
 777         goto success;
 778     }
 779
 780     /* If OF_SEARCH is set, ignore the given path */
 781
 782     if ((mode & OF_SEARCH) && !(mode & OF_REOPEN))
 783     {
 784         /* First try the file name as is */
 785         if (DOSFS_GetFullName( name, TRUE, &full_name )) goto found;
 786         /* Now remove the path */
 787         if (name[0] && (name[1] == ':')) name += 2;
 788         if ((p = strrchr( name, '\\' ))) name = p + 1;
 789         if ((p = strrchr( name, '/' ))) name = p + 1;
 790         if (!name[0]) goto not_found;
 791     }
 792
 793     /* Now look for the file */
 794
 795     if (!DIR_SearchPath( NULL, name, NULL, &full_name, win32 )) goto not_found;
 796
 797 found:
 798     TRACE(file, "found %s = %s\n",
 799                   full_name.long_name, full_name.short_name );
 800     lstrcpyn32A( ofs->szPathName, full_name.short_name,
 801                  sizeof(ofs->szPathName) );
 802
 803     if (mode & OF_DELETE)
 804     {
 805         if (unlink( full_name.long_name ) == -1) goto not_found;
 806         TRACE(file, "(%s): OF_DELETE return = OK\n", name);
 807         return 1;
 808     }
 809
 810     switch(mode & 3)
 811     {
 812     case OF_WRITE:
 813         unixMode = O_WRONLY; break;
 814     case OF_READWRITE:
 815         unixMode = O_RDWR; break;
 816     case OF_READ:
 817     default:
 818         unixMode = O_RDONLY; break;
 819     }
 820
 821     hFileRet = FILE_OpenUnixFile( full_name.long_name, unixMode );
 822     if (hFileRet == HFILE_ERROR32) goto not_found;
 823     GetFileTime( hFileRet, NULL, NULL, &filetime );
 824     FileTimeToDosDateTime( &filetime, &filedatetime[0], &filedatetime[1] );
 825     if ((mode & OF_VERIFY) && (mode & OF_REOPEN))
 826     {
 827         if (memcmp( ofs->reserved, filedatetime, sizeof(ofs->reserved) ))
 828         {
 829             CloseHandle( hFileRet );
 830             WARN(file, "(%s): OF_VERIFY failed\n", name );
 831             /* FIXME: what error here? */
 832             DOS_ERROR( ER_FileNotFound, EC_NotFound, SA_Abort, EL_Disk );
 833             goto error;
 834         }
 835     }
 836     memcpy( ofs->reserved, filedatetime, sizeof(ofs->reserved) );
 837
 838 success:  /* We get here if the open was successful */
 839     TRACE(file, "(%s): OK, return = %d\n", name, hFileRet );
 840     if (mode & OF_EXIST) /* Return the handle, but close it first */
 841         CloseHandle( hFileRet );
 842     return hFileRet;
 843
 844 not_found:  /* We get here if the file does not exist */
 845     WARN(file, "'%s' not found\n", name );
 846     DOS_ERROR( ER_FileNotFound, EC_NotFound, SA_Abort, EL_Disk );
 847     /* fall through */
 848
 849 error:  /* We get here if there was an error opening the file */
 850     ofs->nErrCode = DOS_ExtendedError;
 851     WARN(file, "(%s): return = HFILE_ERROR error= %d\n",
 852                   name,ofs->nErrCode );
 853     return HFILE_ERROR32;
 854 }
 855
 856
 857 /***********************************************************************
 858  *           OpenFile16   (KERNEL.74)
 859  */
 860 HFILE16 WINAPI OpenFile16( LPCSTR name, OFSTRUCT *ofs, UINT16 mode )
 861 {
 862     return FILE_DoOpenFile( name, ofs, mode, FALSE );
 863 }
 864
 865
 866 /***********************************************************************
 867  *           OpenFile32   (KERNEL32.396)
 868  */
 869 HFILE32 WINAPI OpenFile32( LPCSTR name, OFSTRUCT *ofs, UINT32 mode )
 870 {
 871     return FILE_DoOpenFile( name, ofs, mode, TRUE );
 872 }
 873
 874
 875 /***********************************************************************
 876  *           _lclose16   (KERNEL.81)
 877  */
 878 HFILE16 WINAPI _lclose16( HFILE16 hFile )
 879 {
 880     TRACE(file, "handle %d\n", hFile );
 881     return CloseHandle( hFile ) ? 0 : HFILE_ERROR16;
 882 }
 883
 884
 885 /***********************************************************************
 886  *           _lclose32   (KERNEL32.592)
 887  */
 888 HFILE32 WINAPI _lclose32( HFILE32 hFile )
 889 {
 890     TRACE(file, "handle %d\n", hFile );
 891     return CloseHandle( hFile ) ? 0 : HFILE_ERROR32;
 892 }
 893
 894
 895 /***********************************************************************
 896  *           WIN16_hread
 897  */
 898 LONG WINAPI WIN16_hread( HFILE16 hFile, SEGPTR buffer, LONG count )
 899 {
 900     LONG maxlen;
 901
 902     TRACE(file, "%d %08lx %ld\n",
 903                   hFile, (DWORD)buffer, count );
 904
 905     /* Some programs pass a count larger than the allocated buffer */
 906     maxlen = GetSelectorLimit( SELECTOROF(buffer) ) - OFFSETOF(buffer) + 1;
 907     if (count > maxlen) count = maxlen;
 908     return _lread32( hFile, PTR_SEG_TO_LIN(buffer), count );
 909 }
 910
 911
 912 /***********************************************************************
 913  *           WIN16_lread
 914  */
 915 UINT16 WINAPI WIN16_lread( HFILE16 hFile, SEGPTR buffer, UINT16 count )
 916 {
 917     return (UINT16)WIN16_hread( hFile, buffer, (LONG)count );
 918 }
 919
 920
 921 /***********************************************************************
 922  *           _lread32   (KERNEL32.596)
 923  */
 924 UINT32 WINAPI _lread32( HFILE32 handle, LPVOID buffer, UINT32 count )
 925 {
 926     K32OBJ *ptr;
 927     DWORD numWritten;
 928     BOOL32 result = FALSE;
 929
 930     TRACE( file, "%d %p %d\n", handle, buffer, count);
 931     if (!(ptr = HANDLE_GetObjPtr( PROCESS_Current(), handle,
 932                                   K32OBJ_UNKNOWN, 0))) return -1;
 933     if (K32OBJ_OPS(ptr)->read)
 934         result = K32OBJ_OPS(ptr)->read(ptr, buffer, count, &numWritten, NULL);
 935     K32OBJ_DecCount( ptr );
 936     if (!result) return -1;
 937     return (UINT32)numWritten;
 938 }
 939
 940
 941 /***********************************************************************
 942  *           _lread16   (KERNEL.82)
 943  */
 944 UINT16 WINAPI _lread16( HFILE16 hFile, LPVOID buffer, UINT16 count )
 945 {
 946     return (UINT16)_lread32( hFile, buffer, (LONG)count );
 947 }
 948
 949
 950 /***********************************************************************
 951  *           _lcreat16   (KERNEL.83)
 952  */
 953 HFILE16 WINAPI _lcreat16( LPCSTR path, INT16 attr )
 954 {
 955     int mode = (attr & 1) ? 0444 : 0666;
 956     TRACE(file, "%s %02x\n", path, attr );
 957     return (HFILE16)FILE_Create( path, mode, FALSE );
 958 }
 959
 960
 961 /***********************************************************************
 962  *           _lcreat32   (KERNEL32.593)
 963  */
 964 HFILE32 WINAPI _lcreat32( LPCSTR path, INT32 attr )
 965 {
 966     int mode = (attr & 1) ? 0444 : 0666;
 967     TRACE(file, "%s %02x\n", path, attr );
 968     return FILE_Create( path, mode, FALSE );
 969 }
 970
 971
 972 /***********************************************************************
 973  *           _lcreat_uniq   (Not a Windows API)
 974  */
 975 HFILE32 _lcreat_uniq( LPCSTR path, INT32 attr )
 976 {
 977     int mode = (attr & 1) ? 0444 : 0666;
 978     TRACE(file, "%s %02x\n", path, attr );
 979     return FILE_Create( path, mode, TRUE );
 980 }
 981
 982
 983 /***********************************************************************
 984  *           SetFilePointer   (KERNEL32.492)
 985  */
 986 DWORD WINAPI SetFilePointer( HFILE32 hFile, LONG distance, LONG *highword,
 987                              DWORD method )
 988 {
 989     FILE_OBJECT *file;
 990     int origin, result;
 991
 992     if (highword && *highword)
 993     {
 994         FIXME(file, "64-bit offsets not supported yet\n");
 995         SetLastError( ERROR_INVALID_PARAMETER );
 996         return 0xffffffff;
 997     }
 998     TRACE(file, "handle %d offset %ld origin %ld\n",
 999           hFile, distance, method );
1000
1001     if (!(file = FILE_GetFile( hFile ))) return 0xffffffff;
1002     switch(method)
1003     {
1004         case FILE_CURRENT: origin = SEEK_CUR; break;
1005         case FILE_END:     origin = SEEK_END; break;
1006         default:           origin = SEEK_SET; break;
1007     }
1008
1009     if ((result = lseek( file->unix_handle, distance, origin )) == -1)
1010         FILE_SetDosError();
1011     FILE_ReleaseFile( file );
1012     return (DWORD)result;
1013 }
1014
1015
1016 /***********************************************************************
1017  *           _llseek16   (KERNEL.84)
1018  */
1019 LONG WINAPI _llseek16( HFILE16 hFile, LONG lOffset, INT16 nOrigin )
1020 {
1021     return SetFilePointer( hFile, lOffset, NULL, nOrigin );
1022 }
1023
1024
1025 /***********************************************************************
1026  *           _llseek32   (KERNEL32.594)
1027  */
1028 LONG WINAPI _llseek32( HFILE32 hFile, LONG lOffset, INT32 nOrigin )
1029 {
1030     return SetFilePointer( hFile, lOffset, NULL, nOrigin );
1031 }
1032
1033
1034 /***********************************************************************
1035  *           _lopen16   (KERNEL.85)
1036  */
1037 HFILE16 WINAPI _lopen16( LPCSTR path, INT16 mode )
1038 {
1039     return _lopen32( path, mode );
1040 }
1041
1042
1043 /***********************************************************************
1044  *           _lopen32   (KERNEL32.595)
1045  */
1046 HFILE32 WINAPI _lopen32( LPCSTR path, INT32 mode )
1047 {
1048     INT32 unixMode;
1049
1050     TRACE(file, "('%s',%04x)\n", path, mode );
1051
1052     switch(mode & 3)
1053     {
1054     case OF_WRITE:
1055         unixMode = O_WRONLY;
1056         break;
1057     case OF_READWRITE:
1058         unixMode = O_RDWR;
1059         break;
1060     case OF_READ:
1061     default:
1062         unixMode = O_RDONLY;
1063         break;
1064     }
1065     return FILE_Open( path, unixMode );
1066 }
1067
1068
1069 /***********************************************************************
1070  *           _lwrite16   (KERNEL.86)
1071  */
1072 UINT16 WINAPI _lwrite16( HFILE16 hFile, LPCSTR buffer, UINT16 count )
1073 {
1074     return (UINT16)_hwrite32( hFile, buffer, (LONG)count );
1075 }
1076
1077 /***********************************************************************
1078  *           _lwrite32   (KERNEL.86)
1079  */
1080 UINT32 WINAPI _lwrite32( HFILE32 hFile, LPCSTR buffer, UINT32 count )
1081 {
1082     return (UINT32)_hwrite32( hFile, buffer, (LONG)count );
1083 }
1084
1085
1086 /***********************************************************************
1087  *           _hread16   (KERNEL.349)
1088  */
1089 LONG WINAPI _hread16( HFILE16 hFile, LPVOID buffer, LONG count)
1090 {
1091     return _lread32( hFile, buffer, count );
1092 }
1093
1094
1095 /***********************************************************************
1096  *           _hread32   (KERNEL32.590)
1097  */
1098 LONG WINAPI _hread32( HFILE32 hFile, LPVOID buffer, LONG count)
1099 {
1100     return _lread32( hFile, buffer, count );
1101 }
1102
1103
1104 /***********************************************************************
1105  *           _hwrite16   (KERNEL.350)
1106  */
1107 LONG WINAPI _hwrite16( HFILE16 hFile, LPCSTR buffer, LONG count )
1108 {
1109     return _hwrite32( hFile, buffer, count );
1110 }
1111
1112
1113 /***********************************************************************
1114  *           _hwrite32   (KERNEL32.591)
1115  *
1116  *      experimenation yields that _lwrite:
1117  *              o truncates the file at the current position with
1118  *                a 0 len write
1119  *              o returns 0 on a 0 length write
1120  *              o works with console handles
1121  *
1122  */
1123 LONG WINAPI _hwrite32( HFILE32 handle, LPCSTR buffer, LONG count )
1124 {
1125         K32OBJ *ioptr;
1126         DWORD result;
1127         BOOL32 status = FALSE;
1128
1129         TRACE(file, "%d %p %ld\n", handle, buffer, count );
1130
1131         if (count == 0) {       /* Expand or truncate at current position */
1132                 FILE_OBJECT *file = FILE_GetFile(handle);
1133
1134                 if ( ftruncate(file->unix_handle,
1135                                lseek( file->unix_handle, 0, SEEK_CUR)) == 0 ) {
1136                         FILE_ReleaseFile(file);
1137                         return 0;
1138                 } else {
1139                         FILE_SetDosError();
1140                         FILE_ReleaseFile(file);
1141                         return HFILE_ERROR32;
1142                 }
1143         }
1144
1145         if (!(ioptr = HANDLE_GetObjPtr( PROCESS_Current(), handle,
1146                                         K32OBJ_UNKNOWN, 0 )))
1147             return HFILE_ERROR32;
1148         if (K32OBJ_OPS(ioptr)->write)
1149             status = K32OBJ_OPS(ioptr)->write(ioptr, buffer, count, &result, NULL);
1150         K32OBJ_DecCount( ioptr );
1151         if (!status) result = HFILE_ERROR32;
1152         return result;
1153 }
1154
1155
1156 /***********************************************************************
1157  *           SetHandleCount16   (KERNEL.199)
1158  */
1159 UINT16 WINAPI SetHandleCount16( UINT16 count )
1160 {
1161     HGLOBAL16 hPDB = GetCurrentPDB();
1162     PDB *pdb = (PDB *)GlobalLock16( hPDB );
1163     BYTE *files = PTR_SEG_TO_LIN( pdb->fileHandlesPtr );
1164
1165     TRACE(file, "(%d)\n", count );
1166
1167     if (count < 20) count = 20;  /* No point in going below 20 */
1168     else if (count > 254) count = 254;
1169
1170     if (count == 20)
1171     {
1172         if (pdb->nbFiles > 20)
1173         {
1174             memcpy( pdb->fileHandles, files, 20 );
1175             GlobalFree16( pdb->hFileHandles );
1176             pdb->fileHandlesPtr = (SEGPTR)MAKELONG( 0x18,
1177                                                    GlobalHandleToSel( hPDB ) );
1178             pdb->hFileHandles = 0;
1179             pdb->nbFiles = 20;
1180         }
1181     }
1182     else  /* More than 20, need a new file handles table */
1183     {
1184         BYTE *newfiles;
1185         HGLOBAL16 newhandle = GlobalAlloc16( GMEM_MOVEABLE, count );
1186         if (!newhandle)
1187         {
1188             DOS_ERROR( ER_OutOfMemory, EC_OutOfResource, SA_Abort, EL_Memory );
1189             return pdb->nbFiles;
1190         }
1191         newfiles = (BYTE *)GlobalLock16( newhandle );
1192
1193         if (count > pdb->nbFiles)
1194         {
1195             memcpy( newfiles, files, pdb->nbFiles );
1196             memset( newfiles + pdb->nbFiles, 0xff, count - pdb->nbFiles );
1197         }
1198         else memcpy( newfiles, files, count );
1199         if (pdb->nbFiles > 20) GlobalFree16( pdb->hFileHandles );
1200         pdb->fileHandlesPtr = WIN16_GlobalLock16( newhandle );
1201         pdb->hFileHandles   = newhandle;
1202         pdb->nbFiles = count;
1203     }
1204     return pdb->nbFiles;
1205 }
1206
1207
1208 /*************************************************************************
1209  *           SetHandleCount32   (KERNEL32.494)
1210  */
1211 UINT32 WINAPI SetHandleCount32( UINT32 count )
1212 {
1213     return MIN( 256, count );
1214 }
1215
1216
1217 /***********************************************************************
1218  *           FlushFileBuffers   (KERNEL32.133)
1219  */
1220 BOOL32 WINAPI FlushFileBuffers( HFILE32 hFile )
1221 {
1222     FILE_OBJECT *file;
1223     BOOL32 ret;
1224
1225     TRACE(file, "(%d)\n", hFile );
1226     if (!(file = FILE_GetFile( hFile ))) return FALSE;
1227     if (fsync( file->unix_handle ) != -1) ret = TRUE;
1228     else
1229     {
1230         FILE_SetDosError();
1231         ret = FALSE;
1232     }
1233     FILE_ReleaseFile( file );
1234     return ret;
1235 }
1236
1237
1238 /**************************************************************************
1239  *           SetEndOfFile   (KERNEL32.483)
1240  */
1241 BOOL32 WINAPI SetEndOfFile( HFILE32 hFile )
1242 {
1243     FILE_OBJECT *file;
1244     BOOL32 ret = TRUE;
1245
1246     TRACE(file, "(%d)\n", hFile );
1247     if (!(file = FILE_GetFile( hFile ))) return FALSE;
1248     if (ftruncate( file->unix_handle,
1249                    lseek( file->unix_handle, 0, SEEK_CUR ) ))
1250     {
1251         FILE_SetDosError();
1252         ret = FALSE;
1253     }
1254     FILE_ReleaseFile( file );
1255     return ret;
1256 }
1257
1258
1259 /***********************************************************************
1260  *           DeleteFile16   (KERNEL.146)
1261  */
1262 BOOL16 WINAPI DeleteFile16( LPCSTR path )
1263 {
1264     return DeleteFile32A( path );
1265 }
1266
1267
1268 /***********************************************************************
1269  *           DeleteFile32A   (KERNEL32.71)
1270  */
1271 BOOL32 WINAPI DeleteFile32A( LPCSTR path )
1272 {
1273     DOS_FULL_NAME full_name;
1274
1275     TRACE(file, "'%s'\n", path );
1276
1277     if (DOSFS_IsDevice( path ))
1278     {
1279         WARN(file, "cannot remove DOS device '%s'!\n", path);
1280         DOS_ERROR( ER_FileNotFound, EC_NotFound, SA_Abort, EL_Disk );
1281         return FALSE;
1282     }
1283
1284     if (!DOSFS_GetFullName( path, TRUE, &full_name )) return FALSE;
1285     if (unlink( full_name.long_name ) == -1)
1286     {
1287         FILE_SetDosError();
1288         return FALSE;
1289     }
1290     return TRUE;
1291 }
1292
1293
1294 /***********************************************************************
1295  *           DeleteFile32W   (KERNEL32.72)
1296  */
1297 BOOL32 WINAPI DeleteFile32W( LPCWSTR path )
1298 {
1299     LPSTR xpath = HEAP_strdupWtoA( GetProcessHeap(), 0, path );
1300     BOOL32 ret = DeleteFile32A( xpath );
1301     HeapFree( GetProcessHeap(), 0, xpath );
1302     return ret;
1303 }
1304
1305
1306 /***********************************************************************
1307  *           FILE_SetFileType
1308  */
1309 BOOL32 FILE_SetFileType( HFILE32 hFile, DWORD type )
1310 {
1311     FILE_OBJECT *file = FILE_GetFile( hFile );
1312     if (!file) return FALSE;
1313     file->type = type;
1314     FILE_ReleaseFile( file );
1315     return TRUE;
1316 }
1317
1318
1319 /***********************************************************************
1320  *           FILE_mmap
1321  */
1322 LPVOID FILE_mmap( HFILE32 hFile, LPVOID start,
1323                   DWORD size_high, DWORD size_low,
1324                   DWORD offset_high, DWORD offset_low,
1325                   int prot, int flags )
1326 {
1327     LPVOID ret;
1328     FILE_OBJECT *file = FILE_GetFile( hFile );
1329     if (!file) return (LPVOID)-1;
1330     ret = FILE_dommap( file, start, size_high, size_low,
1331                        offset_high, offset_low, prot, flags );
1332     FILE_ReleaseFile( file );
1333     return ret;
1334 }
1335
1336
1337 /***********************************************************************
1338  *           FILE_dommap
1339  */
1340 LPVOID FILE_dommap( FILE_OBJECT *file, LPVOID start,
1341                     DWORD size_high, DWORD size_low,
1342                     DWORD offset_high, DWORD offset_low,
1343                     int prot, int flags )
1344 {
1345     int fd = -1;
1346     int pos;
1347     LPVOID ret;
1348
1349     if (size_high || offset_high)
1350         FIXME(file, "offsets larger than 4Gb not supported\n");
1351
1352     if (!file)
1353     {
1354 #ifdef MAP_ANON
1355         flags |= MAP_ANON;
1356 #else
1357         static int fdzero = -1;
1358
1359         if (fdzero == -1)
1360         {
1361             if ((fdzero = open( "/dev/zero", O_RDONLY )) == -1)
1362             {
1363                 perror( "/dev/zero: open" );
1364                 exit(1);
1365             }
1366         }
1367         fd = fdzero;
1368 #endif  /* MAP_ANON */
1369         /* Linux EINVAL's on us if we don't pass MAP_PRIVATE to an anon mmap */
1370 #ifdef MAP_SHARED
1371         flags &= ~MAP_SHARED;
1372 #endif
1373 #ifdef MAP_PRIVATE
1374         flags |= MAP_PRIVATE;
1375 #endif
1376     }
1377     else fd = file->unix_handle;
1378
1379     if ((ret = mmap( start, size_low, prot,
1380                      flags, fd, offset_low )) != (LPVOID)-1)
1381         return ret;
1382
1383     /* mmap() failed; if this is because the file offset is not    */
1384     /* page-aligned (EINVAL), or because the underlying filesystem */
1385     /* does not support mmap() (ENOEXEC), we do it by hand.        */
1386
1387     if (!file) return ret;
1388     if ((errno != ENOEXEC) && (errno != EINVAL)) return ret;
1389     if (prot & PROT_WRITE)
1390     {
1391         /* We cannot fake shared write mappings */
1392 #ifdef MAP_SHARED
1393         if (flags & MAP_SHARED) return ret;
1394 #endif
1395 #ifdef MAP_PRIVATE
1396         if (!(flags & MAP_PRIVATE)) return ret;
1397 #endif
1398     }
1399 /*    printf( "FILE_mmap: mmap failed (%d), faking it\n", errno );*/
1400     /* Reserve the memory with an anonymous mmap */
1401     ret = FILE_dommap( NULL, start, size_high, size_low, 0, 0,
1402                        PROT_READ | PROT_WRITE, flags );
1403     if (ret == (LPVOID)-1) return ret;
1404     /* Now read in the file */
1405     if ((pos = lseek( fd, offset_low, SEEK_SET )) == -1)
1406     {
1407         FILE_munmap( ret, size_high, size_low );
1408         return (LPVOID)-1;
1409     }
1410     read( fd, ret, size_low );
1411     lseek( fd, pos, SEEK_SET );  /* Restore the file pointer */
1412     mprotect( ret, size_low, prot );  /* Set the right protection */
1413     return ret;
1414 }
1415
1416
1417 /***********************************************************************
1418  *           FILE_munmap
1419  */
1420 int FILE_munmap( LPVOID start, DWORD size_high, DWORD size_low )
1421 {
1422     if (size_high)
1423       FIXME(file, "offsets larger than 4Gb not supported\n");
1424     return munmap( start, size_low );
1425 }
1426
1427
1428 /***********************************************************************
1429  *           GetFileType   (KERNEL32.222)
1430  */
1431 DWORD WINAPI GetFileType( HFILE32 hFile )
1432 {
1433     FILE_OBJECT *file = FILE_GetFile(hFile);
1434     if (!file) return FILE_TYPE_UNKNOWN; /* FIXME: correct? */
1435     FILE_ReleaseFile( file );
1436     return file->type;
1437 }
1438
1439
1440 /**************************************************************************
1441  *           MoveFileEx32A   (KERNEL32.???)
1442  */
1443 BOOL32 WINAPI MoveFileEx32A( LPCSTR fn1, LPCSTR fn2, DWORD flag )
1444 {
1445     DOS_FULL_NAME full_name1, full_name2;
1446     int mode=0; /* mode == 1: use copy */
1447
1448     TRACE(file, "(%s,%s,%04lx)\n", fn1, fn2, flag);
1449
1450     if (!DOSFS_GetFullName( fn1, TRUE, &full_name1 )) return FALSE;
1451     if (fn2) { /* !fn2 means delete fn1 */
1452       if (!DOSFS_GetFullName( fn2, FALSE, &full_name2 )) return FALSE;
1453       /* Source name and target path are valid */
1454       if ( full_name1.drive != full_name2.drive)
1455         /* use copy, if allowed */
1456         if (!(flag & MOVEFILE_COPY_ALLOWED)) {
1457           /* FIXME: Use right error code */
1458           DOS_ERROR( ER_FileExists, EC_Exists, SA_Abort, EL_Disk );
1459           return FALSE;
1460         }
1461         else mode =1;
1462       if (DOSFS_GetFullName( fn2, TRUE, &full_name2 ))
1463         /* target exists, check if we may overwrite */
1464         if (!(flag & MOVEFILE_REPLACE_EXISTING)) {
1465           /* FIXME: Use right error code */
1466           DOS_ERROR( ER_AccessDenied, EC_AccessDenied, SA_Abort, EL_Disk );
1467           return FALSE;
1468         }
1469     }
1470     else /* fn2 == NULL means delete source */
1471       if (flag & MOVEFILE_DELAY_UNTIL_REBOOT) {
1472         if (flag & MOVEFILE_COPY_ALLOWED) {
1473           WARN(file, "Illegal flag\n");
1474           DOS_ERROR( ER_GeneralFailure, EC_SystemFailure, SA_Abort,
1475                      EL_Unknown );
1476           return FALSE;
1477         }
1478         /* FIXME: (bon@elektron.ikp.physik.th-darmstadt.de 970706)
1479            Perhaps we should queue these command and execute it
1480            when exiting... What about using on_exit(2)
1481            */
1482         FIXME(file, "Please delete file '%s' when Wine has finished\n",
1483               full_name1.long_name);
1484         return TRUE;
1485       }
1486       else if (unlink( full_name1.long_name ) == -1)
1487       {
1488         FILE_SetDosError();
1489         return FALSE;
1490       }
1491       else  return TRUE; /* successfully deleted */
1492
1493     if (flag & MOVEFILE_DELAY_UNTIL_REBOOT) {
1494         /* FIXME: (bon@elektron.ikp.physik.th-darmstadt.de 970706)
1495            Perhaps we should queue these command and execute it
1496            when exiting... What about using on_exit(2)
1497            */
1498         FIXME(file,"Please move existing file '%s' to file '%s'"
1499               "when Wine has finished\n",
1500               full_name1.long_name, full_name2.long_name);
1501         return TRUE;
1502     }
1503
1504     if (!mode) /* move the file */
1505       if (rename( full_name1.long_name, full_name2.long_name ) == -1)
1506         {
1507           FILE_SetDosError();
1508           return FALSE;
1509         }
1510       else return TRUE;
1511     else /* copy File */
1512       return CopyFile32A(fn1, fn2, (!(flag & MOVEFILE_REPLACE_EXISTING)));
1513
1514 }
1515
1516 /**************************************************************************
1517  *           MoveFileEx32W   (KERNEL32.???)
1518  */
1519 BOOL32 WINAPI MoveFileEx32W( LPCWSTR fn1, LPCWSTR fn2, DWORD flag )
1520 {
1521     LPSTR afn1 = HEAP_strdupWtoA( GetProcessHeap(), 0, fn1 );
1522     LPSTR afn2 = HEAP_strdupWtoA( GetProcessHeap(), 0, fn2 );
1523     BOOL32 res = MoveFileEx32A( afn1, afn2, flag );
1524     HeapFree( GetProcessHeap(), 0, afn1 );
1525     HeapFree( GetProcessHeap(), 0, afn2 );
1526     return res;
1527 }
1528
1529
1530 /**************************************************************************
1531  *           MoveFile32A   (KERNEL32.387)
1532  *
1533  *  Move file or directory
1534  */
1535 BOOL32 WINAPI MoveFile32A( LPCSTR fn1, LPCSTR fn2 )
1536 {
1537     DOS_FULL_NAME full_name1, full_name2;
1538     struct stat fstat;
1539
1540     TRACE(file, "(%s,%s)\n", fn1, fn2 );
1541
1542     if (!DOSFS_GetFullName( fn1, TRUE, &full_name1 )) return FALSE;
1543     if (DOSFS_GetFullName( fn2, TRUE, &full_name2 ))
1544       /* The new name must not already exist */
1545       return FALSE;
1546     if (!DOSFS_GetFullName( fn2, FALSE, &full_name2 )) return FALSE;
1547
1548     if (full_name1.drive == full_name2.drive) /* move */
1549     if (rename( full_name1.long_name, full_name2.long_name ) == -1)
1550     {
1551         FILE_SetDosError();
1552         return FALSE;
1553     }
1554       else return TRUE;
1555     else /*copy */ {
1556       if (stat(  full_name1.long_name, &fstat ))
1557         {
1558           WARN(file, "Invalid source file %s\n",
1559                         full_name1.long_name);
1560           FILE_SetDosError();
1561           return FALSE;
1562         }
1563       if (S_ISDIR(fstat.st_mode)) {
1564         /* No Move for directories across file systems */
1565         /* FIXME: Use right error code */
1566         DOS_ERROR( ER_GeneralFailure, EC_SystemFailure, SA_Abort,
1567                    EL_Unknown );
1568         return FALSE;
1569       }
1570       else
1571         return CopyFile32A(fn1, fn2, TRUE); /*fail, if exist */
1572     }
1573 }
1574
1575
1576 /**************************************************************************
1577  *           MoveFile32W   (KERNEL32.390)
1578  */
1579 BOOL32 WINAPI MoveFile32W( LPCWSTR fn1, LPCWSTR fn2 )
1580 {
1581     LPSTR afn1 = HEAP_strdupWtoA( GetProcessHeap(), 0, fn1 );
1582     LPSTR afn2 = HEAP_strdupWtoA( GetProcessHeap(), 0, fn2 );
1583     BOOL32 res = MoveFile32A( afn1, afn2 );
1584     HeapFree( GetProcessHeap(), 0, afn1 );
1585     HeapFree( GetProcessHeap(), 0, afn2 );
1586     return res;
1587 }
1588
1589
1590 /**************************************************************************
1591  *           CopyFile32A   (KERNEL32.36)
1592  */
1593 BOOL32 WINAPI CopyFile32A( LPCSTR source, LPCSTR dest, BOOL32 fail_if_exists )
1594 {
1595     HFILE32 h1, h2;
1596     BY_HANDLE_FILE_INFORMATION info;
1597     UINT32 count;
1598     BOOL32 ret = FALSE;
1599     int mode;
1600     char buffer[2048];
1601
1602     if ((h1 = _lopen32( source, OF_READ )) == HFILE_ERROR32) return FALSE;
1603     if (!GetFileInformationByHandle( h1, &info ))
1604     {
1605         CloseHandle( h1 );
1606         return FALSE;
1607     }
1608     mode = (info.dwFileAttributes & FILE_ATTRIBUTE_READONLY) ? 0444 : 0666;
1609     if ((h2 = FILE_Create( dest, mode, fail_if_exists )) == HFILE_ERROR32)
1610     {
1611         CloseHandle( h1 );
1612         return FALSE;
1613     }
1614     while ((count = _lread32( h2, buffer, sizeof(buffer) )) > 0)
1615     {
1616         char *p = buffer;
1617         while (count > 0)
1618         {
1619             INT32 res = _lwrite32( h2, p, count );
1620             if (res <= 0) goto done;
1621             p += res;
1622             count -= res;
1623         }
1624     }
1625     ret =  TRUE;
1626 done:
1627     CloseHandle( h1 );
1628     CloseHandle( h2 );
1629     return ret;
1630 }
1631
1632
1633 /**************************************************************************
1634  *           CopyFile32W   (KERNEL32.37)
1635  */
1636 BOOL32 WINAPI CopyFile32W( LPCWSTR source, LPCWSTR dest, BOOL32 fail_if_exists)
1637 {
1638     LPSTR sourceA = HEAP_strdupWtoA( GetProcessHeap(), 0, source );
1639     LPSTR destA   = HEAP_strdupWtoA( GetProcessHeap(), 0, dest );
1640     BOOL32 ret = CopyFile32A( sourceA, destA, fail_if_exists );
1641     HeapFree( GetProcessHeap(), 0, sourceA );
1642     HeapFree( GetProcessHeap(), 0, destA );
1643     return ret;
1644 }
1645
1646
1647 /***********************************************************************
1648  *              SetFileTime   (KERNEL32.493)
1649  */
1650 BOOL32 WINAPI SetFileTime( HFILE32 hFile,
1651                            const FILETIME *lpCreationTime,
1652                            const FILETIME *lpLastAccessTime,
1653                            const FILETIME *lpLastWriteTime )
1654 {
1655     FILE_OBJECT *file = FILE_GetFile(hFile);
1656     struct utimbuf utimbuf;
1657
1658     if (!file) return FILE_TYPE_UNKNOWN; /* FIXME: correct? */
1659     TRACE(file,"(%s,%p,%p,%p)\n",
1660         file->unix_name,
1661         lpCreationTime,
1662         lpLastAccessTime,
1663         lpLastWriteTime
1664     );
1665     if (lpLastAccessTime)
1666         utimbuf.actime  = DOSFS_FileTimeToUnixTime(lpLastAccessTime, NULL);
1667     else
1668         utimbuf.actime  = 0; /* FIXME */
1669     if (lpLastWriteTime)
1670         utimbuf.modtime = DOSFS_FileTimeToUnixTime(lpLastWriteTime, NULL);
1671     else
1672         utimbuf.modtime = 0; /* FIXME */
1673     if (-1==utime(file->unix_name,&utimbuf))
1674     {
1675         FILE_ReleaseFile( file );
1676         FILE_SetDosError();
1677         return FALSE;
1678     }
1679     FILE_ReleaseFile( file );
1680     return TRUE;
1681 }
1682
1683 /* Locks need to be mirrored because unix file locking is based
1684  * on the pid. Inside of wine there can be multiple WINE processes
1685  * that share the same unix pid.
1686  * Read's and writes should check these locks also - not sure
1687  * how critical that is at this point (FIXME).
1688  */
1689
1690 static BOOL32 DOS_AddLock(FILE_OBJECT *file, struct flock *f)
1691 {
1692   DOS_FILE_LOCK *curr;
1693   DWORD         processId;
1694
1695   processId = GetCurrentProcessId();
1696
1697   /* check if lock overlaps a current lock for the same file */
1698   for (curr = locks; curr; curr = curr->next) {
1699     if (strcmp(curr->unix_name, file->unix_name) == 0) {
1700       if ((f->l_start == curr->base) && (f->l_len == curr->len))
1701         return TRUE;/* region is identic */
1702       if ((f->l_start < (curr->base + curr->len)) &&
1703           ((f->l_start + f->l_len) > curr->base)) {
1704         /* region overlaps */
1705         return FALSE;
1706       }
1707     }
1708   }
1709
1710   curr = HeapAlloc( SystemHeap, 0, sizeof(DOS_FILE_LOCK) );
1711   curr->processId = GetCurrentProcessId();
1712   curr->base = f->l_start;
1713   curr->len = f->l_len;
1714   curr->unix_name = HEAP_strdupA( SystemHeap, 0, file->unix_name);
1715   curr->next = locks;
1716   curr->dos_file = file;
1717   locks = curr;
1718   return TRUE;
1719 }
1720
1721 static void DOS_RemoveFileLocks(FILE_OBJECT *file)
1722 {
1723   DWORD         processId;
1724   DOS_FILE_LOCK **curr;
1725   DOS_FILE_LOCK *rem;
1726
1727   processId = GetCurrentProcessId();
1728   curr = &locks;
1729   while (*curr) {
1730     if ((*curr)->dos_file == file) {
1731       rem = *curr;
1732       *curr = (*curr)->next;
1733       HeapFree( SystemHeap, 0, rem->unix_name );
1734       HeapFree( SystemHeap, 0, rem );
1735     }
1736     else
1737       curr = &(*curr)->next;
1738   }
1739 }
1740
1741 static BOOL32 DOS_RemoveLock(FILE_OBJECT *file, struct flock *f)
1742 {
1743   DWORD         processId;
1744   DOS_FILE_LOCK **curr;
1745   DOS_FILE_LOCK *rem;
1746
1747   processId = GetCurrentProcessId();
1748   for (curr = &locks; *curr; curr = &(*curr)->next) {
1749     if ((*curr)->processId == processId &&
1750         (*curr)->dos_file == file &&
1751         (*curr)->base == f->l_start &&
1752         (*curr)->len == f->l_len) {
1753       /* this is the same lock */
1754       rem = *curr;
1755       *curr = (*curr)->next;
1756       HeapFree( SystemHeap, 0, rem->unix_name );
1757       HeapFree( SystemHeap, 0, rem );
1758       return TRUE;
1759     }
1760   }
1761   /* no matching lock found */
1762   return FALSE;
1763 }
1764
1765
1766 /**************************************************************************
1767  *           LockFile   (KERNEL32.511)
1768  */
1769 BOOL32 WINAPI LockFile(
1770         HFILE32 hFile,DWORD dwFileOffsetLow,DWORD dwFileOffsetHigh,
1771         DWORD nNumberOfBytesToLockLow,DWORD nNumberOfBytesToLockHigh )
1772 {
1773   struct flock f;
1774   FILE_OBJECT *file;
1775
1776   TRACE(file, "handle %d offsetlow=%ld offsethigh=%ld nbyteslow=%ld nbyteshigh=%ld\n",
1777                hFile, dwFileOffsetLow, dwFileOffsetHigh,
1778                nNumberOfBytesToLockLow, nNumberOfBytesToLockHigh);
1779
1780   if (dwFileOffsetHigh || nNumberOfBytesToLockHigh) {
1781     FIXME(file, "Unimplemented bytes > 32bits\n");
1782     return FALSE;
1783   }
1784
1785   f.l_start = dwFileOffsetLow;
1786   f.l_len = nNumberOfBytesToLockLow;
1787   f.l_whence = SEEK_SET;
1788   f.l_pid = 0;
1789   f.l_type = F_WRLCK;
1790
1791   if (!(file = FILE_GetFile(hFile))) return FALSE;
1792
1793   /* shadow locks internally */
1794   if (!DOS_AddLock(file, &f)) {
1795     DOS_ERROR( ER_LockViolation, EC_AccessDenied, SA_Ignore, EL_Disk );
1796     return FALSE;
1797   }
1798
1799   /* FIXME: Unix locking commented out for now, doesn't work with Excel */
1800 #ifdef USE_UNIX_LOCKS
1801   if (fcntl(file->unix_handle, F_SETLK, &f) == -1) {
1802     if (errno == EACCES || errno == EAGAIN) {
1803       DOS_ERROR( ER_LockViolation, EC_AccessDenied, SA_Ignore, EL_Disk );
1804     }
1805     else {
1806       FILE_SetDosError();
1807     }
1808     /* remove our internal copy of the lock */
1809     DOS_RemoveLock(file, &f);
1810     return FALSE;
1811   }
1812 #endif
1813   return TRUE;
1814 }
1815
1816
1817 /**************************************************************************
1818  *           UnlockFile   (KERNEL32.703)
1819  */
1820 BOOL32 WINAPI UnlockFile(
1821         HFILE32 hFile,DWORD dwFileOffsetLow,DWORD dwFileOffsetHigh,
1822         DWORD nNumberOfBytesToUnlockLow,DWORD nNumberOfBytesToUnlockHigh )
1823 {
1824   FILE_OBJECT *file;
1825   struct flock f;
1826
1827   TRACE(file, "handle %d offsetlow=%ld offsethigh=%ld nbyteslow=%ld nbyteshigh=%ld\n",
1828                hFile, dwFileOffsetLow, dwFileOffsetHigh,
1829                nNumberOfBytesToUnlockLow, nNumberOfBytesToUnlockHigh);
1830
1831   if (dwFileOffsetHigh || nNumberOfBytesToUnlockHigh) {
1832     WARN(file, "Unimplemented bytes > 32bits\n");
1833     return FALSE;
1834   }
1835
1836   f.l_start = dwFileOffsetLow;
1837   f.l_len = nNumberOfBytesToUnlockLow;
1838   f.l_whence = SEEK_SET;
1839   f.l_pid = 0;
1840   f.l_type = F_UNLCK;
1841
1842   if (!(file = FILE_GetFile(hFile))) return FALSE;
1843
1844   DOS_RemoveLock(file, &f);     /* ok if fails - may be another wine */
1845
1846   /* FIXME: Unix locking commented out for now, doesn't work with Excel */
1847 #ifdef USE_UNIX_LOCKS
1848   if (fcntl(file->unix_handle, F_SETLK, &f) == -1) {
1849     FILE_SetDosError();
1850     return FALSE;
1851   }
1852 #endif
1853   return TRUE;
1854 }
1855