win32/file.c

   1 /*
   2  * Win32 kernel functions
   3  *
   4  * Copyright 1995 Martin von Loewis, Sven Verdoolaege, and Cameron Heide
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  */
  20
  21 #include "config.h"
  22 #include "wine/port.h"
  23
  24 #include <errno.h>
  25 #ifdef HAVE_SYS_ERRNO_H
  26 #include <sys/errno.h>
  27 #endif
  28 #include <stdlib.h>
  29 #include <unistd.h>
  30 #include <sys/types.h>
  31 #include <sys/stat.h>
  32 #ifdef HAVE_SYS_MMAN_H
  33 #include <sys/mman.h>
  34 #endif
  35 #include <fcntl.h>
  36 #include <string.h>
  37 #include <time.h>
  38
  39 #include "winbase.h"
  40 #include "winerror.h"
  41
  42 #include "wine/winbase16.h"
  43 #include "file.h"
  44
  45 #include "wine/debug.h"
  46
  47 WINE_DEFAULT_DEBUG_CHANNEL(file);
  48
  49 /**************************************************************************
  50  *              SetFileAttributes       (KERNEL.421)
  51  */
  52 BOOL16 WINAPI SetFileAttributes16( LPCSTR lpFileName, DWORD attributes )
  53 {
  54     return SetFileAttributesA( lpFileName, attributes );
  55 }
  56
  57
  58 /**************************************************************************
  59  *              SetFileAttributesA      (KERNEL32.@)
  60  */
  61 BOOL WINAPI SetFileAttributesA(LPCSTR lpFileName, DWORD attributes)
  62 {
  63     struct stat buf;
  64     DOS_FULL_NAME full_name;
  65
  66     if (!DOSFS_GetFullName( lpFileName, TRUE, &full_name ))
  67         return FALSE;
  68
  69     TRACE("(%s,%lx)\n",lpFileName,attributes);
  70     if (attributes & FILE_ATTRIBUTE_NORMAL) {
  71       attributes &= ~FILE_ATTRIBUTE_NORMAL;
  72       if (attributes)
  73         FIXME("(%s):%lx illegal combination with FILE_ATTRIBUTE_NORMAL.\n",
  74               lpFileName,attributes);
  75     }
  76     if(stat(full_name.long_name,&buf)==-1)
  77     {
  78         FILE_SetDosError();
  79         return FALSE;
  80     }
  81     if (attributes & FILE_ATTRIBUTE_READONLY)
  82     {
  83         if(S_ISDIR(buf.st_mode))
  84             /* FIXME */
  85             WARN("FILE_ATTRIBUTE_READONLY ignored for directory.\n");
  86         else
  87             buf.st_mode &= ~0222; /* octal!, clear write permission bits */
  88         attributes &= ~FILE_ATTRIBUTE_READONLY;
  89     }
  90     else
  91     {
  92         /* add write permission */
  93         buf.st_mode |= 0600 | ((buf.st_mode & 044) >> 1);
  94     }
  95     if (attributes & FILE_ATTRIBUTE_DIRECTORY)
  96     {
  97         if (!S_ISDIR(buf.st_mode))
  98             FIXME("SetFileAttributes expected the file '%s' to be a directory",
  99                   lpFileName);
 100         attributes &= ~FILE_ATTRIBUTE_DIRECTORY;
 101     }
 102     attributes &= ~(FILE_ATTRIBUTE_ARCHIVE|FILE_ATTRIBUTE_HIDDEN|FILE_ATTRIBUTE_SYSTEM);
 103     if (attributes)
 104         FIXME("(%s):%lx attribute(s) not implemented.\n",
 105               lpFileName,attributes);
 106     if (-1==chmod(full_name.long_name,buf.st_mode))
 107     {
 108         if(GetDriveTypeA(lpFileName) == DRIVE_CDROM) {
 109            SetLastError( ERROR_ACCESS_DENIED );
 110            return FALSE;
 111         }
 112
 113         /*
 114         * FIXME: We don't return FALSE here because of differences between
 115         *        Linux and Windows privileges. Under Linux only the owner of
 116         *        the file is allowed to change file attributes. Under Windows,
 117         *        applications expect that if you can write to a file, you can also
 118         *        change its attributes (see GENERIC_WRITE). We could try to be
 119         *        clever here but that would break multi-user installations where
 120         *        users share read-only DLLs. This is because some installers like
 121         *        to change attributes of already installed DLLs.
 122         */
 123         FIXME("Couldn't set file attributes for existing file \"%s\".\n"
 124               "Check permissions or set VFAT \"quiet\" mount flag\n", full_name.long_name);
 125     }
 126     return TRUE;
 127 }
 128
 129
 130 /**************************************************************************
 131  *              SetFileAttributesW      (KERNEL32.@)
 132  */
 133 BOOL WINAPI SetFileAttributesW(LPCWSTR lpFileName, DWORD attributes)
 134 {
 135     BOOL res;
 136     DWORD len = WideCharToMultiByte( CP_ACP, 0, lpFileName, -1, NULL, 0, NULL, NULL );
 137     LPSTR afn = HeapAlloc( GetProcessHeap(), 0, len );
 138
 139     WideCharToMultiByte( CP_ACP, 0, lpFileName, -1, afn, len, NULL, NULL );
 140     res = SetFileAttributesA( afn, attributes );
 141     HeapFree( GetProcessHeap(), 0, afn );
 142     return res;
 143 }