files/file.c

   1 /*
   2  * File handling functions
   3  *
   4  * Copyright 1993 John Burton
   5  * Copyright 1996 Alexandre Julliard
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with this library; if not, write to the Free Software
  19  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  20  *
  21  * TODO:
  22  *    Fix the CopyFileEx methods to implement the "extended" functionality.
  23  *    Right now, they simply call the CopyFile method.
  24  */
  25
  26 #include "config.h"
  27 #include "wine/port.h"
  28
  29 #include <assert.h>
  30 #include <ctype.h>
  31 #include <errno.h>
  32 #include <fcntl.h>
  33 #include <stdlib.h>
  34 #include <stdarg.h>
  35 #include <stdio.h>
  36 #include <string.h>
  37 #ifdef HAVE_SYS_ERRNO_H
  38 #include <sys/errno.h>
  39 #endif
  40 #include <sys/types.h>
  41 #include <sys/stat.h>
  42 #ifdef HAVE_SYS_MMAN_H
  43 #include <sys/mman.h>
  44 #endif
  45 #ifdef HAVE_SYS_TIME_H
  46 # include <sys/time.h>
  47 #endif
  48 #ifdef HAVE_SYS_POLL_H
  49 # include <sys/poll.h>
  50 #endif
  51 #include <time.h>
  52 #ifdef HAVE_UNISTD_H
  53 # include <unistd.h>
  54 #endif
  55 #ifdef HAVE_UTIME_H
  56 # include <utime.h>
  57 #endif
  58 #ifdef HAVE_IO_H
  59 # include <io.h>
  60 #endif
  61
  62 #define NONAMELESSUNION
  63 #define NONAMELESSSTRUCT
  64 #include "winerror.h"
  65 #include "ntstatus.h"
  66 #include "windef.h"
  67 #include "winbase.h"
  68 #include "winreg.h"
  69 #include "winternl.h"
  70 #include "wine/winbase16.h"
  71 #include "wine/server.h"
  72
  73 #include "file.h"
  74 #include "wincon.h"
  75 #include "kernel_private.h"
  76
  77 #include "smb.h"
  78 #include "wine/unicode.h"
  79 #include "wine/debug.h"
  80
  81 WINE_DEFAULT_DEBUG_CHANNEL(file);
  82
  83 #if defined(MAP_ANONYMOUS) && !defined(MAP_ANON)
  84 #define MAP_ANON MAP_ANONYMOUS
  85 #endif
  86
  87 #define IS_OPTION_TRUE(ch) ((ch) == 'y' || (ch) == 'Y' || (ch) == 't' || (ch) == 'T' || (ch) == '1')
  88
  89 #define SECSPERDAY         86400
  90 #define SECS_1601_TO_1970  ((369 * 365 + 89) * (ULONGLONG)SECSPERDAY)
  91
  92 /***********************************************************************
  93  *              FILE_ConvertOFMode
  94  *
  95  * Convert OF_* mode into flags for CreateFile.
  96  */
  97 void FILE_ConvertOFMode( INT mode, DWORD *access, DWORD *sharing )
  98 {
  99     switch(mode & 0x03)
 100     {
 101     case OF_READ:      *access = GENERIC_READ; break;
 102     case OF_WRITE:     *access = GENERIC_WRITE; break;
 103     case OF_READWRITE: *access = GENERIC_READ | GENERIC_WRITE; break;
 104     default:           *access = 0; break;
 105     }
 106     switch(mode & 0x70)
 107     {
 108     case OF_SHARE_EXCLUSIVE:  *sharing = 0; break;
 109     case OF_SHARE_DENY_WRITE: *sharing = FILE_SHARE_READ; break;
 110     case OF_SHARE_DENY_READ:  *sharing = FILE_SHARE_WRITE; break;
 111     case OF_SHARE_DENY_NONE:
 112     case OF_SHARE_COMPAT:
 113     default:                  *sharing = FILE_SHARE_READ | FILE_SHARE_WRITE; break;
 114     }
 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_TOO_MANY_OPEN_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     case ENOTDIR:
 171         SetLastError( ERROR_PATH_NOT_FOUND );
 172         break;
 173     case EXDEV:
 174         SetLastError( ERROR_NOT_SAME_DEVICE );
 175         break;
 176     default:
 177         WARN("unknown file error: %s\n", strerror(save_errno) );
 178         SetLastError( ERROR_GEN_FAILURE );
 179         break;
 180     }
 181     errno = save_errno;
 182 }
 183
 184
 185 /***********************************************************************
 186  *           FILE_CreateFile
 187  *
 188  * Implementation of CreateFile. Takes a Unix path name.
 189  * Returns 0 on failure.
 190  */
 191 HANDLE FILE_CreateFile( LPCSTR filename, DWORD access, DWORD sharing,
 192                         LPSECURITY_ATTRIBUTES sa, DWORD creation,
 193                         DWORD attributes, HANDLE template )
 194 {
 195     unsigned int err;
 196     UINT disp, options;
 197     HANDLE ret;
 198
 199     switch (creation)
 200     {
 201     case CREATE_ALWAYS:     disp = FILE_OVERWRITE_IF; break;
 202     case CREATE_NEW:        disp = FILE_CREATE; break;
 203     case OPEN_ALWAYS:       disp = FILE_OPEN_IF; break;
 204     case OPEN_EXISTING:     disp = FILE_OPEN; break;
 205     case TRUNCATE_EXISTING: disp = FILE_OVERWRITE; break;
 206     default:
 207         SetLastError( ERROR_INVALID_PARAMETER );
 208         return 0;
 209     }
 210
 211     options = 0;
 212     if (attributes & FILE_FLAG_BACKUP_SEMANTICS)
 213         options |= FILE_OPEN_FOR_BACKUP_INTENT;
 214     else
 215         options |= FILE_NON_DIRECTORY_FILE;
 216     if (attributes & FILE_FLAG_DELETE_ON_CLOSE)
 217         options |= FILE_DELETE_ON_CLOSE;
 218     if (!(attributes & FILE_FLAG_OVERLAPPED))
 219         options |= FILE_SYNCHRONOUS_IO_ALERT;
 220     if (attributes & FILE_FLAG_RANDOM_ACCESS)
 221         options |= FILE_RANDOM_ACCESS;
 222     attributes &= FILE_ATTRIBUTE_VALID_FLAGS;
 223
 224     SERVER_START_REQ( create_file )
 225     {
 226         req->access     = access;
 227         req->inherit    = (sa && (sa->nLength>=sizeof(*sa)) && sa->bInheritHandle);
 228         req->sharing    = sharing;
 229         req->create     = disp;
 230         req->options    = options;
 231         req->attrs      = attributes;
 232         wine_server_add_data( req, filename, strlen(filename) );
 233         SetLastError(0);
 234         err = wine_server_call( req );
 235         ret = reply->handle;
 236     }
 237     SERVER_END_REQ;
 238
 239     if (err)
 240     {
 241         /* In the case file creation was rejected due to CREATE_NEW flag
 242          * was specified and file with that name already exists, correct
 243          * last error is ERROR_FILE_EXISTS and not ERROR_ALREADY_EXISTS.
 244          * Note: RtlNtStatusToDosError is not the subject to blame here.
 245          */
 246         if (err == STATUS_OBJECT_NAME_COLLISION)
 247             SetLastError( ERROR_FILE_EXISTS );
 248         else
 249             SetLastError( RtlNtStatusToDosError(err) );
 250     }
 251
 252     if (!ret) WARN("Unable to create file '%s' (GLE %ld)\n", filename, GetLastError());
 253     return ret;
 254 }
 255
 256
 257 static HANDLE FILE_OpenPipe(LPCWSTR name, DWORD access, LPSECURITY_ATTRIBUTES sa )
 258 {
 259     HANDLE ret;
 260     DWORD len = 0;
 261
 262     if (name && (len = strlenW(name)) > MAX_PATH)
 263     {
 264         SetLastError( ERROR_FILENAME_EXCED_RANGE );
 265         return 0;
 266     }
 267     SERVER_START_REQ( open_named_pipe )
 268     {
 269         req->access = access;
 270         req->inherit = (sa && (sa->nLength>=sizeof(*sa)) && sa->bInheritHandle);
 271         SetLastError(0);
 272         wine_server_add_data( req, name, len * sizeof(WCHAR) );
 273         wine_server_call_err( req );
 274         ret = reply->handle;
 275     }
 276     SERVER_END_REQ;
 277     TRACE("Returned %p\n",ret);
 278     return ret;
 279 }
 280
 281 /*************************************************************************
 282  * CreateFileW [KERNEL32.@]  Creates or opens a file or other object
 283  *
 284  * Creates or opens an object, and returns a handle that can be used to
 285  * access that object.
 286  *
 287  * PARAMS
 288  *
 289  * filename     [in] pointer to filename to be accessed
 290  * access       [in] access mode requested
 291  * sharing      [in] share mode
 292  * sa           [in] pointer to security attributes
 293  * creation     [in] how to create the file
 294  * attributes   [in] attributes for newly created file
 295  * template     [in] handle to file with extended attributes to copy
 296  *
 297  * RETURNS
 298  *   Success: Open handle to specified file
 299  *   Failure: INVALID_HANDLE_VALUE
 300  *
 301  * NOTES
 302  *  Should call SetLastError() on failure.
 303  *
 304  * BUGS
 305  *
 306  * Doesn't support character devices, template files, or a
 307  * lot of the 'attributes' flags yet.
 308  */
 309 HANDLE WINAPI CreateFileW( LPCWSTR filename, DWORD access, DWORD sharing,
 310                               LPSECURITY_ATTRIBUTES sa, DWORD creation,
 311                               DWORD attributes, HANDLE template )
 312 {
 313     NTSTATUS status;
 314     UINT options;
 315     OBJECT_ATTRIBUTES attr;
 316     UNICODE_STRING nameW;
 317     IO_STATUS_BLOCK io;
 318     HANDLE ret;
 319     DWORD dosdev;
 320     static const WCHAR bkslashes_with_dotW[] = {'\\','\\','.','\\',0};
 321     static const WCHAR coninW[] = {'C','O','N','I','N','$',0};
 322     static const WCHAR conoutW[] = {'C','O','N','O','U','T','$',0};
 323
 324     static const char * const creation_name[5] =
 325         { "CREATE_NEW", "CREATE_ALWAYS", "OPEN_EXISTING", "OPEN_ALWAYS", "TRUNCATE_EXISTING" };
 326
 327     static const UINT nt_disposition[5] =
 328     {
 329         FILE_CREATE,        /* CREATE_NEW */
 330         FILE_OVERWRITE_IF,  /* CREATE_ALWAYS */
 331         FILE_OPEN,          /* OPEN_EXISTING */
 332         FILE_OPEN_IF,       /* OPEN_ALWAYS */
 333         FILE_OVERWRITE      /* TRUNCATE_EXISTING */
 334     };
 335
 336
 337     /* sanity checks */
 338
 339     if (!filename || !filename[0])
 340     {
 341         SetLastError( ERROR_PATH_NOT_FOUND );
 342         return INVALID_HANDLE_VALUE;
 343     }
 344
 345     if (creation < CREATE_NEW || creation > TRUNCATE_EXISTING)
 346     {
 347         SetLastError( ERROR_INVALID_PARAMETER );
 348         return INVALID_HANDLE_VALUE;
 349     }
 350
 351     TRACE("%s %s%s%s%s%s%s%s attributes 0x%lx\n", debugstr_w(filename),
 352           (access & GENERIC_READ)?"GENERIC_READ ":"",
 353           (access & GENERIC_WRITE)?"GENERIC_WRITE ":"",
 354           (!access)?"QUERY_ACCESS ":"",
 355           (sharing & FILE_SHARE_READ)?"FILE_SHARE_READ ":"",
 356           (sharing & FILE_SHARE_WRITE)?"FILE_SHARE_WRITE ":"",
 357           (sharing & FILE_SHARE_DELETE)?"FILE_SHARE_DELETE ":"",
 358           creation_name[creation - CREATE_NEW], attributes);
 359
 360     /* Open a console for CONIN$ or CONOUT$ */
 361
 362     if (!strcmpiW(filename, coninW) || !strcmpiW(filename, conoutW))
 363     {
 364         ret = OpenConsoleW(filename, access, (sa && sa->bInheritHandle), creation);
 365         goto done;
 366     }
 367
 368     if (!strncmpW(filename, bkslashes_with_dotW, 4))
 369     {
 370         static const WCHAR pipeW[] = {'P','I','P','E','\\',0};
 371         if(!strncmpiW(filename + 4, pipeW, 5))
 372         {
 373             TRACE("Opening a pipe: %s\n", debugstr_w(filename));
 374             ret = FILE_OpenPipe( filename, access, sa );
 375             goto done;
 376         }
 377         else if (isalphaW(filename[4]) && filename[5] == ':' && filename[6] == '\0')
 378         {
 379             const char *device = DRIVE_GetDevice( toupperW(filename[4]) - 'A' );
 380             if (device)
 381             {
 382                 ret = FILE_CreateFile( device, access, sharing, sa, creation,
 383                                        attributes, template );
 384             }
 385             else
 386             {
 387                 SetLastError( ERROR_ACCESS_DENIED );
 388                 return INVALID_HANDLE_VALUE;
 389             }
 390             goto done;
 391         }
 392         else if ((dosdev = RtlIsDosDeviceName_U( filename + 4 )))
 393         {
 394             dosdev += MAKELONG( 0, 4*sizeof(WCHAR) );  /* adjust position to start of filename */
 395         }
 396         else if (filename[4])
 397         {
 398             ret = VXD_Open( filename+4, access, sa );
 399             goto done;
 400         }
 401         else
 402         {
 403             SetLastError( ERROR_INVALID_NAME );
 404             return INVALID_HANDLE_VALUE;
 405         }
 406     }
 407     else dosdev = RtlIsDosDeviceName_U( filename );
 408
 409     if (dosdev)
 410     {
 411         static const WCHAR conW[] = {'C','O','N'};
 412
 413         if (LOWORD(dosdev) == sizeof(conW) &&
 414             !memicmpW( filename + HIWORD(dosdev)/sizeof(WCHAR), conW, sizeof(conW)))
 415         {
 416             switch (access & (GENERIC_READ|GENERIC_WRITE))
 417             {
 418             case GENERIC_READ:
 419                 ret = OpenConsoleW(coninW, access, (sa && sa->bInheritHandle), creation);
 420                 goto done;
 421             case GENERIC_WRITE:
 422                 ret = OpenConsoleW(conoutW, access, (sa && sa->bInheritHandle), creation);
 423                 goto done;
 424             default:
 425                 SetLastError( ERROR_FILE_NOT_FOUND );
 426                 return INVALID_HANDLE_VALUE;
 427             }
 428         }
 429     }
 430
 431     if (!RtlDosPathNameToNtPathName_U( filename, &nameW, NULL, NULL ))
 432     {
 433         SetLastError( ERROR_PATH_NOT_FOUND );
 434         return INVALID_HANDLE_VALUE;
 435     }
 436
 437     /* now call NtCreateFile */
 438
 439     options = 0;
 440     if (attributes & FILE_FLAG_BACKUP_SEMANTICS)
 441         options |= FILE_OPEN_FOR_BACKUP_INTENT;
 442     else
 443         options |= FILE_NON_DIRECTORY_FILE;
 444     if (attributes & FILE_FLAG_DELETE_ON_CLOSE)
 445         options |= FILE_DELETE_ON_CLOSE;
 446     if (!(attributes & FILE_FLAG_OVERLAPPED))
 447         options |= FILE_SYNCHRONOUS_IO_ALERT;
 448     if (attributes & FILE_FLAG_RANDOM_ACCESS)
 449         options |= FILE_RANDOM_ACCESS;
 450     attributes &= FILE_ATTRIBUTE_VALID_FLAGS;
 451
 452     attr.Length = sizeof(attr);
 453     attr.RootDirectory = 0;
 454     attr.Attributes = OBJ_CASE_INSENSITIVE;
 455     attr.ObjectName = &nameW;
 456     attr.SecurityDescriptor = sa ? sa->lpSecurityDescriptor : NULL;
 457     attr.SecurityQualityOfService = NULL;
 458
 459     if (sa && sa->bInheritHandle) attr.Attributes |= OBJ_INHERIT;
 460
 461     status = NtCreateFile( &ret, access, &attr, &io, NULL, attributes,
 462                            sharing, nt_disposition[creation - CREATE_NEW],
 463                            options, NULL, 0 );
 464     if (status)
 465     {
 466         WARN("Unable to create file %s (status %lx)\n", debugstr_w(filename), status);
 467         ret = INVALID_HANDLE_VALUE;
 468
 469         /* In the case file creation was rejected due to CREATE_NEW flag
 470          * was specified and file with that name already exists, correct
 471          * last error is ERROR_FILE_EXISTS and not ERROR_ALREADY_EXISTS.
 472          * Note: RtlNtStatusToDosError is not the subject to blame here.
 473          */
 474         if (status == STATUS_OBJECT_NAME_COLLISION)
 475             SetLastError( ERROR_FILE_EXISTS );
 476         else
 477             SetLastError( RtlNtStatusToDosError(status) );
 478     }
 479     else SetLastError(0);
 480     RtlFreeUnicodeString( &nameW );
 481
 482  done:
 483     if (!ret) ret = INVALID_HANDLE_VALUE;
 484     TRACE("returning %p\n", ret);
 485     return ret;
 486 }
 487
 488
 489
 490 /*************************************************************************
 491  *              CreateFileA              (KERNEL32.@)
 492  */
 493 HANDLE WINAPI CreateFileA( LPCSTR filename, DWORD access, DWORD sharing,
 494                               LPSECURITY_ATTRIBUTES sa, DWORD creation,
 495                               DWORD attributes, HANDLE template)
 496 {
 497     UNICODE_STRING filenameW;
 498     HANDLE ret = INVALID_HANDLE_VALUE;
 499
 500     if (!filename)
 501     {
 502         SetLastError( ERROR_INVALID_PARAMETER );
 503         return INVALID_HANDLE_VALUE;
 504     }
 505
 506     if (RtlCreateUnicodeStringFromAsciiz(&filenameW, filename))
 507     {
 508         ret = CreateFileW(filenameW.Buffer, access, sharing, sa, creation,
 509                           attributes, template);
 510         RtlFreeUnicodeString(&filenameW);
 511     }
 512     else
 513         SetLastError(ERROR_NOT_ENOUGH_MEMORY);
 514     return ret;
 515 }
 516
 517
 518 /***********************************************************************
 519  *           FILE_FillInfo
 520  *
 521  * Fill a file information from a struct stat.
 522  */
 523 static void FILE_FillInfo( struct stat *st, BY_HANDLE_FILE_INFORMATION *info )
 524 {
 525     if (S_ISDIR(st->st_mode))
 526         info->dwFileAttributes = FILE_ATTRIBUTE_DIRECTORY;
 527     else
 528         info->dwFileAttributes = FILE_ATTRIBUTE_ARCHIVE;
 529     if (!(st->st_mode & S_IWUSR))
 530         info->dwFileAttributes |= FILE_ATTRIBUTE_READONLY;
 531
 532     RtlSecondsSince1970ToTime( st->st_mtime, (LARGE_INTEGER *)&info->ftCreationTime );
 533     RtlSecondsSince1970ToTime( st->st_mtime, (LARGE_INTEGER *)&info->ftLastWriteTime );
 534     RtlSecondsSince1970ToTime( st->st_atime, (LARGE_INTEGER *)&info->ftLastAccessTime );
 535
 536     info->dwVolumeSerialNumber = 0;  /* FIXME */
 537     if (S_ISDIR(st->st_mode))
 538     {
 539         info->nFileSizeHigh  = 0;
 540         info->nFileSizeLow   = 0;
 541         info->nNumberOfLinks = 1;
 542     }
 543     else
 544     {
 545         info->nFileSizeHigh  = st->st_size >> 32;
 546         info->nFileSizeLow   = (DWORD)st->st_size;
 547         info->nNumberOfLinks = st->st_nlink;
 548     }
 549     info->nFileIndexHigh = st->st_ino >> 32;
 550     info->nFileIndexLow  = (DWORD)st->st_ino;
 551 }
 552
 553
 554 /***********************************************************************
 555  *           get_show_dot_files_option
 556  */
 557 static BOOL get_show_dot_files_option(void)
 558 {
 559     static const WCHAR WineW[] = {'M','a','c','h','i','n','e','\\',
 560                                   'S','o','f','t','w','a','r','e','\\',
 561                                   'W','i','n','e','\\','W','i','n','e','\\',
 562                                   'C','o','n','f','i','g','\\','W','i','n','e',0};
 563     static const WCHAR ShowDotFilesW[] = {'S','h','o','w','D','o','t','F','i','l','e','s',0};
 564
 565     char tmp[80];
 566     HKEY hkey;
 567     DWORD dummy;
 568     OBJECT_ATTRIBUTES attr;
 569     UNICODE_STRING nameW;
 570     BOOL ret = FALSE;
 571
 572     attr.Length = sizeof(attr);
 573     attr.RootDirectory = 0;
 574     attr.ObjectName = &nameW;
 575     attr.Attributes = 0;
 576     attr.SecurityDescriptor = NULL;
 577     attr.SecurityQualityOfService = NULL;
 578     RtlInitUnicodeString( &nameW, WineW );
 579
 580     if (!NtOpenKey( &hkey, KEY_ALL_ACCESS, &attr ))
 581     {
 582         RtlInitUnicodeString( &nameW, ShowDotFilesW );
 583         if (!NtQueryValueKey( hkey, &nameW, KeyValuePartialInformation, tmp, sizeof(tmp), &dummy ))
 584         {
 585             WCHAR *str = (WCHAR *)((KEY_VALUE_PARTIAL_INFORMATION *)tmp)->Data;
 586             ret = IS_OPTION_TRUE( str[0] );
 587         }
 588         NtClose( hkey );
 589     }
 590     return ret;
 591 }
 592
 593
 594 /***********************************************************************
 595  *           FILE_Stat
 596  *
 597  * Stat a Unix path name. Return TRUE if OK.
 598  */
 599 BOOL FILE_Stat( LPCSTR unixName, BY_HANDLE_FILE_INFORMATION *info, BOOL *is_symlink_ptr )
 600 {
 601     struct stat st;
 602     int is_symlink;
 603     LPCSTR p;
 604
 605     if (lstat( unixName, &st ) == -1)
 606     {
 607         FILE_SetDosError();
 608         return FALSE;
 609     }
 610     is_symlink = S_ISLNK(st.st_mode);
 611     if (is_symlink)
 612     {
 613         /* do a "real" stat to find out
 614            about the type of the symlink destination */
 615         if (stat( unixName, &st ) == -1)
 616         {
 617             FILE_SetDosError();
 618             return FALSE;
 619         }
 620     }
 621
 622     /* fill in the information we gathered so far */
 623     FILE_FillInfo( &st, info );
 624
 625     /* and now see if this is a hidden file, based on the name */
 626     p = strrchr( unixName, '/');
 627     p = p ? p + 1 : unixName;
 628     if (*p == '.' && *(p+1)  && (*(p+1) != '.' || *(p+2)))
 629     {
 630         static int show_dot_files = -1;
 631         if (show_dot_files == -1)
 632             show_dot_files = get_show_dot_files_option();
 633         if (!show_dot_files)
 634             info->dwFileAttributes |= FILE_ATTRIBUTE_HIDDEN;
 635     }
 636     if (is_symlink_ptr) *is_symlink_ptr = is_symlink;
 637     return TRUE;
 638 }
 639
 640
 641 /***********************************************************************
 642  *             GetFileInformationByHandle   (KERNEL32.@)
 643  */
 644 BOOL WINAPI GetFileInformationByHandle( HANDLE hFile, BY_HANDLE_FILE_INFORMATION *info )
 645 {
 646     NTSTATUS status;
 647     int fd;
 648     BOOL ret = FALSE;
 649
 650     TRACE("%p,%p\n", hFile, info);
 651
 652     if (!info) return 0;
 653
 654     if (!(status = wine_server_handle_to_fd( hFile, 0, &fd, NULL, NULL )))
 655     {
 656         struct stat st;
 657
 658         if (fstat( fd, &st ) == -1)
 659             FILE_SetDosError();
 660         else if (!S_ISREG(st.st_mode) && !S_ISDIR(st.st_mode))
 661             SetLastError( ERROR_INVALID_FUNCTION );
 662         else
 663         {
 664             FILE_FillInfo( &st, info );
 665             ret = TRUE;
 666         }
 667         wine_server_release_fd( hFile, fd );
 668     }
 669     else SetLastError( RtlNtStatusToDosError(status) );
 670
 671     return ret;
 672 }
 673
 674
 675 /***********************************************************************
 676  *           GetFileTime   (KERNEL32.@)
 677  */
 678 BOOL WINAPI GetFileTime( HANDLE hFile, FILETIME *lpCreationTime,
 679                            FILETIME *lpLastAccessTime,
 680                            FILETIME *lpLastWriteTime )
 681 {
 682     BY_HANDLE_FILE_INFORMATION info;
 683     if (!GetFileInformationByHandle( hFile, &info )) return FALSE;
 684     if (lpCreationTime)   *lpCreationTime   = info.ftCreationTime;
 685     if (lpLastAccessTime) *lpLastAccessTime = info.ftLastAccessTime;
 686     if (lpLastWriteTime)  *lpLastWriteTime  = info.ftLastWriteTime;
 687     return TRUE;
 688 }
 689
 690
 691 /***********************************************************************
 692  *           GetTempFileNameA   (KERNEL32.@)
 693  */
 694 UINT WINAPI GetTempFileNameA( LPCSTR path, LPCSTR prefix, UINT unique,
 695                                   LPSTR buffer)
 696 {
 697     UNICODE_STRING pathW, prefixW;
 698     WCHAR bufferW[MAX_PATH];
 699     UINT ret;
 700
 701     if ( !path || !prefix || !buffer )
 702     {
 703         SetLastError( ERROR_INVALID_PARAMETER );
 704         return 0;
 705     }
 706
 707     RtlCreateUnicodeStringFromAsciiz(&pathW, path);
 708     RtlCreateUnicodeStringFromAsciiz(&prefixW, prefix);
 709
 710     ret = GetTempFileNameW(pathW.Buffer, prefixW.Buffer, unique, bufferW);
 711     if (ret)
 712         WideCharToMultiByte(CP_ACP, 0, bufferW, -1, buffer, MAX_PATH, NULL, NULL);
 713
 714     RtlFreeUnicodeString(&pathW);
 715     RtlFreeUnicodeString(&prefixW);
 716     return ret;
 717 }
 718
 719 /***********************************************************************
 720  *           GetTempFileNameW   (KERNEL32.@)
 721  */
 722 UINT WINAPI GetTempFileNameW( LPCWSTR path, LPCWSTR prefix, UINT unique,
 723                                   LPWSTR buffer )
 724 {
 725     static const WCHAR formatW[] = {'%','x','.','t','m','p',0};
 726
 727     int i;
 728     LPWSTR p;
 729
 730     if ( !path || !prefix || !buffer )
 731     {
 732         SetLastError( ERROR_INVALID_PARAMETER );
 733         return 0;
 734     }
 735
 736     strcpyW( buffer, path );
 737     p = buffer + strlenW(buffer);
 738
 739     /* add a \, if there isn't one  */
 740     if ((p == buffer) || (p[-1] != '\\')) *p++ = '\\';
 741
 742     for (i = 3; (i > 0) && (*prefix); i--) *p++ = *prefix++;
 743
 744     unique &= 0xffff;
 745
 746     if (unique) sprintfW( p, formatW, unique );
 747     else
 748     {
 749         /* get a "random" unique number and try to create the file */
 750         HANDLE handle;
 751         UINT num = GetTickCount() & 0xffff;
 752
 753         if (!num) num = 1;
 754         unique = num;
 755         do
 756         {
 757             sprintfW( p, formatW, unique );
 758             handle = CreateFileW( buffer, GENERIC_WRITE, 0, NULL,
 759                                   CREATE_NEW, FILE_ATTRIBUTE_NORMAL, 0 );
 760             if (handle != INVALID_HANDLE_VALUE)
 761             {  /* We created it */
 762                 TRACE("created %s\n", debugstr_w(buffer) );
 763                 CloseHandle( handle );
 764                 break;
 765             }
 766             if (GetLastError() != ERROR_FILE_EXISTS &&
 767                 GetLastError() != ERROR_SHARING_VIOLATION)
 768                 break;  /* No need to go on */
 769             if (!(++unique & 0xffff)) unique = 1;
 770         } while (unique != num);
 771     }
 772
 773     TRACE("returning %s\n", debugstr_w(buffer) );
 774     return unique;
 775 }
 776
 777
 778 /******************************************************************
 779  *              FILE_ReadWriteApc (internal)
 780  *
 781  *
 782  */
 783 static void WINAPI      FILE_ReadWriteApc(void* apc_user, PIO_STATUS_BLOCK io_status, ULONG len)
 784 {
 785     LPOVERLAPPED_COMPLETION_ROUTINE  cr = (LPOVERLAPPED_COMPLETION_ROUTINE)apc_user;
 786
 787     cr(RtlNtStatusToDosError(io_status->u.Status), len, (LPOVERLAPPED)io_status);
 788 }
 789
 790 /***********************************************************************
 791  *              ReadFileEx                (KERNEL32.@)
 792  */
 793 BOOL WINAPI ReadFileEx(HANDLE hFile, LPVOID buffer, DWORD bytesToRead,
 794                        LPOVERLAPPED overlapped,
 795                        LPOVERLAPPED_COMPLETION_ROUTINE lpCompletionRoutine)
 796 {
 797     LARGE_INTEGER       offset;
 798     NTSTATUS            status;
 799     PIO_STATUS_BLOCK    io_status;
 800
 801     if (!overlapped)
 802     {
 803         SetLastError(ERROR_INVALID_PARAMETER);
 804         return FALSE;
 805     }
 806
 807     offset.u.LowPart = overlapped->Offset;
 808     offset.u.HighPart = overlapped->OffsetHigh;
 809     io_status = (PIO_STATUS_BLOCK)overlapped;
 810     io_status->u.Status = STATUS_PENDING;
 811
 812     status = NtReadFile(hFile, NULL, FILE_ReadWriteApc, lpCompletionRoutine,
 813                         io_status, buffer, bytesToRead, &offset, NULL);
 814
 815     if (status)
 816     {
 817         SetLastError( RtlNtStatusToDosError(status) );
 818         return FALSE;
 819     }
 820     return TRUE;
 821 }
 822
 823 /***********************************************************************
 824  *              ReadFile                (KERNEL32.@)
 825  */
 826 BOOL WINAPI ReadFile( HANDLE hFile, LPVOID buffer, DWORD bytesToRead,
 827                       LPDWORD bytesRead, LPOVERLAPPED overlapped )
 828 {
 829     LARGE_INTEGER       offset;
 830     PLARGE_INTEGER      poffset = NULL;
 831     IO_STATUS_BLOCK     iosb;
 832     PIO_STATUS_BLOCK    io_status = &iosb;
 833     HANDLE              hEvent = 0;
 834     NTSTATUS            status;
 835
 836     TRACE("%p %p %ld %p %p\n", hFile, buffer, bytesToRead,
 837           bytesRead, overlapped );
 838
 839     if (bytesRead) *bytesRead = 0;  /* Do this before anything else */
 840     if (!bytesToRead) return TRUE;
 841
 842     if (IsBadReadPtr(buffer, bytesToRead))
 843     {
 844         SetLastError(ERROR_WRITE_FAULT); /* FIXME */
 845         return FALSE;
 846     }
 847     if (is_console_handle(hFile))
 848         return ReadConsoleA(hFile, buffer, bytesToRead, bytesRead, NULL);
 849
 850     if (overlapped != NULL)
 851     {
 852         offset.u.LowPart = overlapped->Offset;
 853         offset.u.HighPart = overlapped->OffsetHigh;
 854         poffset = &offset;
 855         hEvent = overlapped->hEvent;
 856         io_status = (PIO_STATUS_BLOCK)overlapped;
 857     }
 858     io_status->u.Status = STATUS_PENDING;
 859     io_status->Information = 0;
 860
 861     status = NtReadFile(hFile, hEvent, NULL, NULL, io_status, buffer, bytesToRead, poffset, NULL);
 862
 863     if (status != STATUS_PENDING && bytesRead)
 864         *bytesRead = io_status->Information;
 865
 866     if (status && status != STATUS_END_OF_FILE)
 867     {
 868         SetLastError( RtlNtStatusToDosError(status) );
 869         return FALSE;
 870     }
 871     return TRUE;
 872 }
 873
 874
 875 /***********************************************************************
 876  *              WriteFileEx                (KERNEL32.@)
 877  */
 878 BOOL WINAPI WriteFileEx(HANDLE hFile, LPCVOID buffer, DWORD bytesToWrite,
 879                         LPOVERLAPPED overlapped,
 880                         LPOVERLAPPED_COMPLETION_ROUTINE lpCompletionRoutine)
 881 {
 882     LARGE_INTEGER       offset;
 883     NTSTATUS            status;
 884     PIO_STATUS_BLOCK    io_status;
 885
 886     TRACE("%p %p %ld %p %p\n",
 887           hFile, buffer, bytesToWrite, overlapped, lpCompletionRoutine);
 888
 889     if (overlapped == NULL)
 890     {
 891         SetLastError(ERROR_INVALID_PARAMETER);
 892         return FALSE;
 893     }
 894     offset.u.LowPart = overlapped->Offset;
 895     offset.u.HighPart = overlapped->OffsetHigh;
 896
 897     io_status = (PIO_STATUS_BLOCK)overlapped;
 898     io_status->u.Status = STATUS_PENDING;
 899
 900     status = NtWriteFile(hFile, NULL, FILE_ReadWriteApc, lpCompletionRoutine,
 901                          io_status, buffer, bytesToWrite, &offset, NULL);
 902
 903     if (status) SetLastError( RtlNtStatusToDosError(status) );
 904     return !status;
 905 }
 906
 907 /***********************************************************************
 908  *             WriteFile               (KERNEL32.@)
 909  */
 910 BOOL WINAPI WriteFile( HANDLE hFile, LPCVOID buffer, DWORD bytesToWrite,
 911                        LPDWORD bytesWritten, LPOVERLAPPED overlapped )
 912 {
 913     HANDLE hEvent = NULL;
 914     LARGE_INTEGER offset;
 915     PLARGE_INTEGER poffset = NULL;
 916     NTSTATUS status;
 917     IO_STATUS_BLOCK iosb;
 918     PIO_STATUS_BLOCK piosb = &iosb;
 919
 920     TRACE("%p %p %ld %p %p\n",
 921           hFile, buffer, bytesToWrite, bytesWritten, overlapped );
 922
 923     if (is_console_handle(hFile))
 924         return WriteConsoleA(hFile, buffer, bytesToWrite, bytesWritten, NULL);
 925
 926     if (IsBadReadPtr(buffer, bytesToWrite))
 927     {
 928         SetLastError(ERROR_READ_FAULT); /* FIXME */
 929         return FALSE;
 930     }
 931
 932     if (overlapped)
 933     {
 934         offset.u.LowPart = overlapped->Offset;
 935         offset.u.HighPart = overlapped->OffsetHigh;
 936         poffset = &offset;
 937         hEvent = overlapped->hEvent;
 938         piosb = (PIO_STATUS_BLOCK)overlapped;
 939     }
 940     piosb->u.Status = STATUS_PENDING;
 941     piosb->Information = 0;
 942
 943     status = NtWriteFile(hFile, hEvent, NULL, NULL, piosb,
 944                          buffer, bytesToWrite, poffset, NULL);
 945     if (status)
 946     {
 947         SetLastError( RtlNtStatusToDosError(status) );
 948         return FALSE;
 949     }
 950     if (bytesWritten) *bytesWritten = piosb->Information;
 951
 952     return TRUE;
 953 }
 954
 955
 956 /***********************************************************************
 957  *           SetFilePointer   (KERNEL32.@)
 958  */
 959 DWORD WINAPI SetFilePointer( HANDLE hFile, LONG distance, LONG *highword,
 960                              DWORD method )
 961 {
 962     static const int whence[3] = { SEEK_SET, SEEK_CUR, SEEK_END };
 963     DWORD ret = INVALID_SET_FILE_POINTER;
 964     NTSTATUS status;
 965     int fd;
 966
 967     TRACE("handle %p offset %ld high %ld origin %ld\n",
 968           hFile, distance, highword?*highword:0, method );
 969
 970     if (method > FILE_END)
 971     {
 972         SetLastError( ERROR_INVALID_PARAMETER );
 973         return ret;
 974     }
 975
 976     if (!(status = wine_server_handle_to_fd( hFile, 0, &fd, NULL, NULL )))
 977     {
 978         off_t pos, res;
 979
 980         if (highword) pos = ((off_t)*highword << 32) | (ULONG)distance;
 981         else pos = (off_t)distance;
 982         if ((res = lseek( fd, pos, whence[method] )) == (off_t)-1)
 983         {
 984             /* also check EPERM due to SuSE7 2.2.16 lseek() EPERM kernel bug */
 985             if (((errno == EINVAL) || (errno == EPERM)) && (method != FILE_BEGIN) && (pos < 0))
 986                 SetLastError( ERROR_NEGATIVE_SEEK );
 987             else
 988                 FILE_SetDosError();
 989         }
 990         else
 991         {
 992             ret = (DWORD)res;
 993             if (highword) *highword = (res >> 32);
 994             if (ret == INVALID_SET_FILE_POINTER) SetLastError( 0 );
 995         }
 996         wine_server_release_fd( hFile, fd );
 997     }
 998     else SetLastError( RtlNtStatusToDosError(status) );
 999
1000     return ret;
1001 }
1002
1003
1004 /*************************************************************************
1005  *           SetHandleCount   (KERNEL32.@)
1006  */
1007 UINT WINAPI SetHandleCount( UINT count )
1008 {
1009     return min( 256, count );
1010 }
1011
1012
1013 /**************************************************************************
1014  *           SetEndOfFile   (KERNEL32.@)
1015  */
1016 BOOL WINAPI SetEndOfFile( HANDLE hFile )
1017 {
1018     BOOL ret;
1019     SERVER_START_REQ( truncate_file )
1020     {
1021         req->handle = hFile;
1022         ret = !wine_server_call_err( req );
1023     }
1024     SERVER_END_REQ;
1025     return ret;
1026 }
1027
1028
1029 /***********************************************************************
1030  *           GetFileType   (KERNEL32.@)
1031  */
1032 DWORD WINAPI GetFileType( HANDLE hFile )
1033 {
1034     NTSTATUS status;
1035     int fd;
1036     DWORD ret = FILE_TYPE_UNKNOWN;
1037
1038     if (is_console_handle( hFile ))
1039         return FILE_TYPE_CHAR;
1040
1041     if (!(status = wine_server_handle_to_fd( hFile, 0, &fd, NULL, NULL )))
1042     {
1043         struct stat st;
1044
1045         if (fstat( fd, &st ) == -1)
1046             FILE_SetDosError();
1047         else if (S_ISFIFO(st.st_mode) || S_ISSOCK(st.st_mode))
1048             ret = FILE_TYPE_PIPE;
1049         else if (S_ISCHR(st.st_mode))
1050             ret = FILE_TYPE_CHAR;
1051         else
1052             ret = FILE_TYPE_DISK;
1053         wine_server_release_fd( hFile, fd );
1054     }
1055     else SetLastError( RtlNtStatusToDosError(status) );
1056
1057     return ret;
1058 }
1059
1060
1061 /**************************************************************************
1062  *           CopyFileW   (KERNEL32.@)
1063  */
1064 BOOL WINAPI CopyFileW( LPCWSTR source, LPCWSTR dest, BOOL fail_if_exists )
1065 {
1066     HANDLE h1, h2;
1067     BY_HANDLE_FILE_INFORMATION info;
1068     DWORD count;
1069     BOOL ret = FALSE;
1070     char buffer[2048];
1071
1072     if (!source || !dest)
1073     {
1074         SetLastError(ERROR_INVALID_PARAMETER);
1075         return FALSE;
1076     }
1077
1078     TRACE("%s -> %s\n", debugstr_w(source), debugstr_w(dest));
1079
1080     if ((h1 = CreateFileW(source, GENERIC_READ, FILE_SHARE_READ | FILE_SHARE_WRITE,
1081                      NULL, OPEN_EXISTING, 0, 0)) == INVALID_HANDLE_VALUE)
1082     {
1083         WARN("Unable to open source %s\n", debugstr_w(source));
1084         return FALSE;
1085     }
1086
1087     if (!GetFileInformationByHandle( h1, &info ))
1088     {
1089         WARN("GetFileInformationByHandle returned error for %s\n", debugstr_w(source));
1090         CloseHandle( h1 );
1091         return FALSE;
1092     }
1093
1094     if ((h2 = CreateFileW( dest, GENERIC_WRITE, FILE_SHARE_READ | FILE_SHARE_WRITE, NULL,
1095                              fail_if_exists ? CREATE_NEW : CREATE_ALWAYS,
1096                              info.dwFileAttributes, h1 )) == INVALID_HANDLE_VALUE)
1097     {
1098         WARN("Unable to open dest %s\n", debugstr_w(dest));
1099         CloseHandle( h1 );
1100         return FALSE;
1101     }
1102
1103     while (ReadFile( h1, buffer, sizeof(buffer), &count, NULL ) && count)
1104     {
1105         char *p = buffer;
1106         while (count != 0)
1107         {
1108             DWORD res;
1109             if (!WriteFile( h2, p, count, &res, NULL ) || !res) goto done;
1110             p += res;
1111             count -= res;
1112         }
1113     }
1114     ret =  TRUE;
1115 done:
1116     CloseHandle( h1 );
1117     CloseHandle( h2 );
1118     return ret;
1119 }
1120
1121
1122 /**************************************************************************
1123  *           CopyFileA   (KERNEL32.@)
1124  */
1125 BOOL WINAPI CopyFileA( LPCSTR source, LPCSTR dest, BOOL fail_if_exists)
1126 {
1127     UNICODE_STRING sourceW, destW;
1128     BOOL ret;
1129
1130     if (!source || !dest)
1131     {
1132         SetLastError(ERROR_INVALID_PARAMETER);
1133         return FALSE;
1134     }
1135
1136     RtlCreateUnicodeStringFromAsciiz(&sourceW, source);
1137     RtlCreateUnicodeStringFromAsciiz(&destW, dest);
1138
1139     ret = CopyFileW(sourceW.Buffer, destW.Buffer, fail_if_exists);
1140
1141     RtlFreeUnicodeString(&sourceW);
1142     RtlFreeUnicodeString(&destW);
1143     return ret;
1144 }
1145
1146
1147 /**************************************************************************
1148  *           CopyFileExW   (KERNEL32.@)
1149  *
1150  * This implementation ignores most of the extra parameters passed-in into
1151  * the "ex" version of the method and calls the CopyFile method.
1152  * It will have to be fixed eventually.
1153  */
1154 BOOL WINAPI CopyFileExW(LPCWSTR sourceFilename, LPCWSTR destFilename,
1155                         LPPROGRESS_ROUTINE progressRoutine, LPVOID appData,
1156                         LPBOOL cancelFlagPointer, DWORD copyFlags)
1157 {
1158     /*
1159      * Interpret the only flag that CopyFile can interpret.
1160      */
1161     return CopyFileW(sourceFilename, destFilename, (copyFlags & COPY_FILE_FAIL_IF_EXISTS) != 0);
1162 }
1163
1164
1165 /**************************************************************************
1166  *           CopyFileExA   (KERNEL32.@)
1167  */
1168 BOOL WINAPI CopyFileExA(LPCSTR sourceFilename, LPCSTR destFilename,
1169                         LPPROGRESS_ROUTINE progressRoutine, LPVOID appData,
1170                         LPBOOL cancelFlagPointer, DWORD copyFlags)
1171 {
1172     UNICODE_STRING sourceW, destW;
1173     BOOL ret;
1174
1175     if (!sourceFilename || !destFilename)
1176     {
1177         SetLastError(ERROR_INVALID_PARAMETER);
1178         return FALSE;
1179     }
1180
1181     RtlCreateUnicodeStringFromAsciiz(&sourceW, sourceFilename);
1182     RtlCreateUnicodeStringFromAsciiz(&destW, destFilename);
1183
1184     ret = CopyFileExW(sourceW.Buffer, destW.Buffer, progressRoutine, appData,
1185                       cancelFlagPointer, copyFlags);
1186
1187     RtlFreeUnicodeString(&sourceW);
1188     RtlFreeUnicodeString(&destW);
1189     return ret;
1190 }