X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/89391a4ea111fcd1129d870e70fc0efc6e946fe9..a4ea083bbdf710d3234dcbd2eafb5d0e078f8348:/src/common/filename.cpp?ds=inline

diff --git a/src/common/filename.cpp b/src/common/filename.cpp
index 2f668ec457..c0b38a5282 100644
--- a/src/common/filename.cpp
+++ b/src/common/filename.cpp
@@ -4,7 +4,6 @@
 // Author:      Robert Roebling, Vadim Zeitlin
 // Modified by:
 // Created:     28.12.2000
-// RCS-ID:      $Id$
 // Copyright:   (c) 2000 Robert Roebling
 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
@@ -22,9 +21,18 @@
                 drive:\dir1\dir2\...\dirN\filename.ext where drive is a single
                 letter. "." and ".." as for Unix but no "~".
 
-                There are also UNC names of the form \\share\fullpath
+                There are also UNC names of the form \\share\fullpath and
+                MSW unique volume names of the form \\?\Volume{GUID}\fullpath.
 
-   wxPATH_MAC:  Mac OS 8/9 and Mac OS X under CodeWarrior 7 format, absolute file
+                The latter provide a uniform way to access a volume regardless of
+                its current mount point, i.e. you can change a volume's mount
+                point from D: to E:, or even remove it, and still be able to
+                access it through its unique volume name. More on the subject can
+                be found in MSDN's article "Naming a Volume" that is currently at
+                http://msdn.microsoft.com/en-us/library/aa365248(VS.85).aspx.
+
+
+   wxPATH_MAC:  Mac OS 8/9 only, not used any longer, absolute file
                 names have the form
                     volume:dir1:...:dirN:filename
                 and the relative file names are either
@@ -68,7 +76,7 @@
 #endif
 
 #ifndef WX_PRECOMP
-    #ifdef __WXMSW__
+    #ifdef __WINDOWS__
         #include "wx/msw/wrapwin.h" // For GetShort/LongPathName
     #endif
     #include "wx/dynarray.h"
@@ -84,13 +92,16 @@
 #include "wx/config.h"          // for wxExpandEnvVars
 #include "wx/dynlib.h"
 #include "wx/dir.h"
+#include "wx/longlong.h"
 
 #if defined(__WIN32__) && defined(__MINGW32__)
     #include "wx/msw/gccpriv.h"
 #endif
 
-#ifdef __WXWINCE__
-#include "wx/msw/private.h"
+#ifdef __WINDOWS__
+    #include "wx/msw/private.h"
+    #include <shlobj.h>         // for CLSID_ShellLink
+    #include "wx/msw/missing.h"
 #endif
 
 #if defined(__WXMAC__)
@@ -109,19 +120,6 @@
 #include <unistd.h>
 #endif
 
-#ifdef __MWERKS__
-#ifdef __MACH__
-#include <sys/types.h>
-#include <utime.h>
-#include <sys/stat.h>
-#include <unistd.h>
-#else
-#include <stat.h>
-#include <unistd.h>
-#include <unix.h>
-#endif
-#endif
-
 #ifdef __WATCOMC__
 #include <io.h>
 #include <sys/utime.h>
@@ -139,11 +137,19 @@
 #define MAX_PATH _MAX_PATH
 #endif
 
+#ifndef S_ISREG
+    #define S_ISREG(mode) ((mode) & S_IFREG)
+#endif
+#ifndef S_ISDIR
+    #define S_ISDIR(mode) ((mode) & S_IFDIR)
+#endif
 
 #if wxUSE_LONGLONG
 extern const wxULongLong wxInvalidSize = (unsigned)-1;
 #endif // wxUSE_LONGLONG
 
+namespace
+{
 
 // ----------------------------------------------------------------------------
 // private classes
@@ -158,17 +164,21 @@ class wxFileHandle
 public:
     enum OpenMode
     {
-        Read,
-        Write
+        ReadAttr,
+        WriteAttr
     };
 
     wxFileHandle(const wxString& filename, OpenMode mode, int flags = 0)
     {
+        // be careful and use FILE_{READ,WRITE}_ATTRIBUTES here instead of the
+        // usual GENERIC_{READ,WRITE} as we don't want the file access time to
+        // be changed when we open it because this class is used for setting
+        // access time (see #10567)
         m_hFile = ::CreateFile
                     (
-                     filename.fn_str(),             // name
-                     mode == Read ? GENERIC_READ    // access mask
-                                  : GENERIC_WRITE,
+                     filename.t_str(),             // name
+                     mode == ReadAttr ? FILE_READ_ATTRIBUTES    // access mask
+                                      : FILE_WRITE_ATTRIBUTES,
                      FILE_SHARE_READ |              // sharing mode
                      FILE_SHARE_WRITE,              // (allow everything)
                      NULL,                          // no secutity attr
@@ -179,12 +189,16 @@ public:
 
         if ( m_hFile == INVALID_HANDLE_VALUE )
         {
-            if ( mode == Read )
+            if ( mode == ReadAttr )
+            {
                 wxLogSysError(_("Failed to open '%s' for reading"),
                               filename.c_str());
+            }
             else
+            {
                 wxLogSysError(_("Failed to open '%s' for writing"),
                               filename.c_str());
+            }
         }
     }
 
@@ -217,49 +231,30 @@ private:
 
 #if wxUSE_DATETIME && defined(__WIN32__) && !defined(__WXMICROWIN__)
 
-// convert between wxDateTime and FILETIME which is a 64-bit value representing
-// the number of 100-nanosecond intervals since January 1, 1601.
+// Convert between wxDateTime and FILETIME which is a 64-bit value representing
+// the number of 100-nanosecond intervals since January 1, 1601 UTC.
+//
+// This is the offset between FILETIME epoch and the Unix/wxDateTime Epoch.
+static wxInt64 EPOCH_OFFSET_IN_MSEC = wxLL(11644473600000);
 
 static void ConvertFileTimeToWx(wxDateTime *dt, const FILETIME &ft)
 {
-    FILETIME ftcopy = ft;
-    FILETIME ftLocal;
-    if ( !::FileTimeToLocalFileTime(&ftcopy, &ftLocal) )
-    {
-        wxLogLastError(_T("FileTimeToLocalFileTime"));
-    }
+    wxLongLong t(ft.dwHighDateTime, ft.dwLowDateTime);
+    t /= 10000; // Convert hundreds of nanoseconds to milliseconds.
+    t -= EPOCH_OFFSET_IN_MSEC;
 
-    SYSTEMTIME st;
-    if ( !::FileTimeToSystemTime(&ftLocal, &st) )
-    {
-        wxLogLastError(_T("FileTimeToSystemTime"));
-    }
-
-    dt->Set(st.wDay, wxDateTime::Month(st.wMonth - 1), st.wYear,
-            st.wHour, st.wMinute, st.wSecond, st.wMilliseconds);
+    *dt = wxDateTime(t);
 }
 
 static void ConvertWxToFileTime(FILETIME *ft, const wxDateTime& dt)
 {
-    SYSTEMTIME st;
-    st.wDay = dt.GetDay();
-    st.wMonth = (WORD)(dt.GetMonth() + 1);
-    st.wYear = (WORD)dt.GetYear();
-    st.wHour = dt.GetHour();
-    st.wMinute = dt.GetMinute();
-    st.wSecond = dt.GetSecond();
-    st.wMilliseconds = dt.GetMillisecond();
-
-    FILETIME ftLocal;
-    if ( !::SystemTimeToFileTime(&st, &ftLocal) )
-    {
-        wxLogLastError(_T("SystemTimeToFileTime"));
-    }
+    // Undo the conversions above.
+    wxLongLong t(dt.GetValue());
+    t += EPOCH_OFFSET_IN_MSEC;
+    t *= 10000;
 
-    if ( !::LocalFileTimeToFileTime(&ftLocal, ft) )
-    {
-        wxLogLastError(_T("LocalFileTimeToFileTime"));
-    }
+    ft->dwHighDateTime = t.GetHi();
+    ft->dwLowDateTime = t.GetLo();
 }
 
 #endif // wxUSE_DATETIME && __WIN32__
@@ -279,7 +274,18 @@ static wxString wxGetVolumeString(const wxString& volume, wxPathFormat format)
         // although I didn't find any authoritative docs on this)
         if ( format == wxPATH_DOS && volume.length() > 1 )
         {
-            path << wxFILE_SEP_PATH_DOS << wxFILE_SEP_PATH_DOS << volume;
+            // We also have to check for Windows unique volume names here and
+            // return it with '\\?\' prepended to it
+            if ( wxFileName::IsMSWUniqueVolumeNamePath("\\\\?\\" + volume + "\\",
+                                                       format) )
+            {
+                path << "\\\\?\\" << volume;
+            }
+            else
+            {
+                // it must be a UNC path
+                path << wxFILE_SEP_PATH_DOS << wxFILE_SEP_PATH_DOS << volume;
+            }
         }
         else if  ( format == wxPATH_DOS || format == wxPATH_VMS )
         {
@@ -291,17 +297,83 @@ static wxString wxGetVolumeString(const wxString& volume, wxPathFormat format)
     return path;
 }
 
+// return true if the character is a DOS path separator i.e. either a slash or
+// a backslash
+inline bool IsDOSPathSep(wxUniChar ch)
+{
+    return ch == wxFILE_SEP_PATH_DOS || ch == wxFILE_SEP_PATH_UNIX;
+}
+
 // return true if the format used is the DOS/Windows one and the string looks
 // like a UNC path
 static bool IsUNCPath(const wxString& path, wxPathFormat format)
 {
     return format == wxPATH_DOS &&
                 path.length() >= 4 && // "\\a" can't be a UNC path
-                    path[0u] == wxFILE_SEP_PATH_DOS &&
-                        path[1u] == wxFILE_SEP_PATH_DOS &&
-                            path[2u] != wxFILE_SEP_PATH_DOS;
+                    IsDOSPathSep(path[0u]) &&
+                        IsDOSPathSep(path[1u]) &&
+                            !IsDOSPathSep(path[2u]);
+}
+
+#ifndef __WIN32__
+
+// Under Unix-ish systems (basically everything except Windows) we may work
+// either with the file itself or its target if it's a symbolic link and we
+// should dereference it, as determined by wxFileName::ShouldFollowLink() and
+// the absence of the wxFILE_EXISTS_NO_FOLLOW flag. StatAny() can be used to
+// stat the appropriate file with an extra twist that it also works when there
+// is no wxFileName object at all, as is the case in static methods.
+
+// Private implementation, don't call directly, use one of the overloads below.
+bool DoStatAny(wxStructStat& st, wxString path, bool dereference)
+{
+    // We need to remove any trailing slashes from the path because they could
+    // interfere with the symlink following decision: even if we use lstat(),
+    // it would still follow the symlink if we pass it a path with a slash at
+    // the end because the symlink resolution would happen while following the
+    // path and not for the last path element itself.
+
+    while ( wxEndsWithPathSeparator(path) )
+    {
+        const size_t posLast = path.length() - 1;
+        if ( !posLast )
+        {
+            // Don't turn "/" into empty string.
+            break;
+        }
+
+        path.erase(posLast);
+    }
+
+    int ret = dereference ? wxStat(path, &st) : wxLstat(path, &st);
+    return ret == 0;
 }
 
+// Overloads to use for a case when we don't have wxFileName object and when we
+// do have one.
+inline
+bool StatAny(wxStructStat& st, const wxString& path, int flags)
+{
+    return DoStatAny(st, path, !(flags & wxFILE_EXISTS_NO_FOLLOW));
+}
+
+inline
+bool StatAny(wxStructStat& st, const wxFileName& fn)
+{
+    return DoStatAny(st, fn.GetFullPath(), fn.ShouldFollowLink());
+}
+
+#endif // !__WIN32__
+
+// ----------------------------------------------------------------------------
+// private constants
+// ----------------------------------------------------------------------------
+
+// length of \\?\Volume{xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx}\ string
+static const size_t wxMSWUniqueVolumePrefixLength = 49;
+
+} // anonymous namespace
+
 // ============================================================================
 // implementation
 // ============================================================================
@@ -318,6 +390,7 @@ void wxFileName::Assign( const wxFileName &filepath )
     m_ext = filepath.GetExt();
     m_relative = filepath.m_relative;
     m_hasExt = filepath.m_hasExt;
+    m_dontFollowLinks = filepath.m_dontFollowLinks;
 }
 
 void wxFileName::Assign(const wxString& volume,
@@ -381,6 +454,13 @@ void wxFileName::SetPath( const wxString& pathOrig, wxPathFormat format )
     }
 
     // 1) Determine if the path is relative or absolute.
+
+    if ( path.empty() )
+    {
+        // we had only the volume
+        return;
+    }
+
     wxChar leadingChar = path[0u];
 
     switch (format)
@@ -408,12 +488,11 @@ void wxFileName::SetPath( const wxString& pathOrig, wxPathFormat format )
             break;
 
         default:
-            wxFAIL_MSG( _T("Unknown path format") );
+            wxFAIL_MSG( wxT("Unknown path format") );
             // !! Fall through !!
 
         case wxPATH_UNIX:
-            // the paths of the form "~" or "~username" are absolute
-            m_relative = leadingChar != wxT('/') && leadingChar != _T('~');
+            m_relative = leadingChar != wxT('/');
             break;
 
         case wxPATH_DOS:
@@ -479,13 +558,15 @@ void wxFileName::Assign(const wxString& fullpathOrig,
     SplitPath(fullname, &volDummy, &pathDummy, &name, &ext, &hasExt, format);
 
     wxASSERT_MSG( volDummy.empty() && pathDummy.empty(),
-                  _T("the file name shouldn't contain the path") );
+                  wxT("the file name shouldn't contain the path") );
 
     SplitPath(fullpath, &volume, &path, &nameDummy, &extDummy, format);
 
-    wxASSERT_MSG( nameDummy.empty() && extDummy.empty(),
-                  _T("the path shouldn't contain file name nor extension") );
-
+#ifndef __VMS
+   // This test makes no sense on an OpenVMS system.
+   wxASSERT_MSG( nameDummy.empty() && extDummy.empty(),
+                  wxT("the path shouldn't contain file name nor extension") );
+#endif
     Assign(volume, path, name, ext, hasExt, format);
 }
 
@@ -508,17 +589,19 @@ void wxFileName::AssignDir(const wxString& dir, wxPathFormat format)
 
 void wxFileName::Clear()
 {
-    m_dirs.Clear();
-
-    m_volume =
-    m_name =
-    m_ext = wxEmptyString;
+    m_dirs.clear();
+    m_volume.clear();
+    m_name.clear();
+    m_ext.clear();
 
     // we don't have any absolute path for now
     m_relative = true;
 
     // nor any extension
     m_hasExt = false;
+
+    // follow symlinks by default
+    m_dontFollowLinks = false;
 }
 
 /* static */
@@ -539,24 +622,168 @@ wxFileName wxFileName::DirName(const wxString& dir, wxPathFormat format)
 // existence tests
 // ----------------------------------------------------------------------------
 
+namespace
+{
+
+#if defined(__WINDOWS__) && !defined(__WXMICROWIN__)
+
+void RemoveTrailingSeparatorsFromPath(wxString& strPath)
+{
+    // Windows fails to find directory named "c:\dir\" even if "c:\dir" exists,
+    // so remove all trailing backslashes from the path - but don't do this for
+    // the paths "d:\" (which are different from "d:"), for just "\" or for
+    // windows unique volume names ("\\?\Volume{GUID}\")
+    while ( wxEndsWithPathSeparator( strPath ) )
+    {
+        size_t len = strPath.length();
+        if ( len == 1 || (len == 3 && strPath[len - 2] == wxT(':')) ||
+                (len == wxMSWUniqueVolumePrefixLength &&
+                 wxFileName::IsMSWUniqueVolumeNamePath(strPath)))
+        {
+            break;
+        }
+
+        strPath.Truncate(len - 1);
+    }
+}
+
+#endif // __WINDOWS__ || __OS2__
+
+bool
+wxFileSystemObjectExists(const wxString& path, int flags)
+{
+
+    // Should the existence of file/directory with this name be accepted, i.e.
+    // result in the true return value from this function?
+    const bool acceptFile = (flags & wxFILE_EXISTS_REGULAR) != 0;
+    const bool acceptDir  = (flags & wxFILE_EXISTS_DIR)  != 0;
+
+    wxString strPath(path);
+
+#if defined(__WINDOWS__) && !defined(__WXMICROWIN__)
+    if ( acceptDir )
+    {
+        // Ensure that the path doesn't have any trailing separators when
+        // checking for directories.
+        RemoveTrailingSeparatorsFromPath(strPath);
+    }
+
+    // we must use GetFileAttributes() instead of the ANSI C functions because
+    // it can cope with network (UNC) paths unlike them
+    DWORD ret = ::GetFileAttributes(strPath.t_str());
+
+    if ( ret == INVALID_FILE_ATTRIBUTES )
+        return false;
+
+    if ( ret & FILE_ATTRIBUTE_DIRECTORY )
+        return acceptDir;
+
+    // Anything else must be a file (perhaps we should check for
+    // FILE_ATTRIBUTE_REPARSE_POINT?)
+    return acceptFile;
+#elif defined(__OS2__)
+    if ( acceptDir )
+    {
+        // OS/2 can't handle "d:", it wants either "d:\" or "d:."
+        if (strPath.length() == 2 && strPath[1u] == wxT(':'))
+            strPath << wxT('.');
+    }
+
+    FILESTATUS3 Info = {{0}};
+    APIRET rc = ::DosQueryPathInfo((PSZ)(WXSTRINGCAST strPath), FIL_STANDARD,
+            (void*) &Info, sizeof(FILESTATUS3));
+
+    if ( rc == NO_ERROR )
+    {
+        if ( Info.attrFile & FILE_DIRECTORY )
+            return acceptDir;
+        else
+            return acceptFile;
+    }
+
+    // We consider that the path must exist if we get a sharing violation for
+    // it but we don't know what is it in this case.
+    if ( rc == ERROR_SHARING_VIOLATION )
+        return flags & wxFILE_EXISTS_ANY;
+
+    // Any other error (usually ERROR_PATH_NOT_FOUND), means there is nothing
+    // there.
+    return false;
+#else // Non-MSW, non-OS/2
+    wxStructStat st;
+    if ( !StatAny(st, strPath, flags) )
+        return false;
+
+    if ( S_ISREG(st.st_mode) )
+        return acceptFile;
+    if ( S_ISDIR(st.st_mode) )
+        return acceptDir;
+    if ( S_ISLNK(st.st_mode) )
+    {
+        // Take care to not test for "!= 0" here as this would erroneously
+        // return true if only wxFILE_EXISTS_NO_FOLLOW, which is part of
+        // wxFILE_EXISTS_SYMLINK, is set too.
+        return (flags & wxFILE_EXISTS_SYMLINK) == wxFILE_EXISTS_SYMLINK;
+    }
+    if ( S_ISBLK(st.st_mode) || S_ISCHR(st.st_mode) )
+        return (flags & wxFILE_EXISTS_DEVICE) != 0;
+    if ( S_ISFIFO(st.st_mode) )
+        return (flags & wxFILE_EXISTS_FIFO) != 0;
+    if ( S_ISSOCK(st.st_mode) )
+        return (flags & wxFILE_EXISTS_SOCKET) != 0;
+
+    return flags & wxFILE_EXISTS_ANY;
+#endif // Platforms
+}
+
+} // anonymous namespace
+
 bool wxFileName::FileExists() const
 {
-    return wxFileName::FileExists( GetFullPath() );
+    int flags = wxFILE_EXISTS_REGULAR;
+    if ( !ShouldFollowLink() )
+        flags |= wxFILE_EXISTS_NO_FOLLOW;
+
+    return wxFileSystemObjectExists(GetFullPath(), flags);
 }
 
-bool wxFileName::FileExists( const wxString &file )
+/* static */
+bool wxFileName::FileExists( const wxString &filePath )
 {
-    return ::wxFileExists( file );
+    return wxFileSystemObjectExists(filePath, wxFILE_EXISTS_REGULAR);
 }
 
 bool wxFileName::DirExists() const
 {
-    return wxFileName::DirExists( GetPath() );
+    int flags = wxFILE_EXISTS_DIR;
+    if ( !ShouldFollowLink() )
+        flags |= wxFILE_EXISTS_NO_FOLLOW;
+
+    return Exists(GetPath(), flags);
 }
 
-bool wxFileName::DirExists( const wxString &dir )
+/* static */
+bool wxFileName::DirExists( const wxString &dirPath )
 {
-    return ::wxDirExists( dir );
+    return wxFileSystemObjectExists(dirPath, wxFILE_EXISTS_DIR);
+}
+
+bool wxFileName::Exists(int flags) const
+{
+    // Notice that wxFILE_EXISTS_NO_FOLLOW may be specified in the flags even
+    // if our DontFollowLink() hadn't been called and we do honour it then. But
+    // if the user took the care of calling DontFollowLink(), it is always
+    // taken into account.
+    if ( !ShouldFollowLink() )
+        flags |= wxFILE_EXISTS_NO_FOLLOW;
+
+    return wxFileSystemObjectExists(GetFullPath(), flags);
+}
+
+/* static */
+bool wxFileName::Exists(const wxString& path, int flags)
+{
+    return wxFileSystemObjectExists(path, flags);
 }
 
 // ----------------------------------------------------------------------------
@@ -592,7 +819,7 @@ wxString wxFileName::GetCwd(const wxString& volume)
     return cwd;
 }
 
-bool wxFileName::SetCwd()
+bool wxFileName::SetCwd() const
 {
     return wxFileName::SetCwd( GetPath() );
 }
@@ -646,7 +873,7 @@ static int wxOpenWithDeleteOnClose(const wxString& filename)
     DWORD attributes = FILE_ATTRIBUTE_TEMPORARY |
                        FILE_FLAG_DELETE_ON_CLOSE;
 
-    HANDLE h = ::CreateFile(filename.fn_str(), access, 0, NULL,
+    HANDLE h = ::CreateFile(filename.t_str(), access, 0, NULL,
                             disposition, attributes, NULL);
 
     return wxOpenOSFHandle(h, wxO_BINARY);
@@ -676,12 +903,12 @@ static bool wxTempOpen(wxFFile *file, const wxString& path, bool *deleteOnClose)
 {
 #ifndef wx_fdopen
     *deleteOnClose = false;
-    return file->Open(path, _T("w+b"));
+    return file->Open(path, wxT("w+b"));
 #else // wx_fdopen
     int fd = wxTempOpen(path, deleteOnClose);
     if (fd == -1)
         return false;
-    file->Attach(wx_fdopen(fd, "w+b"));
+    file->Attach(wx_fdopen(fd, "w+b"), path);
     return file->IsOpened();
 #endif // wx_fdopen
 }
@@ -741,10 +968,10 @@ static wxString wxCreateTempImpl(
     }
 
 #elif defined(__WINDOWS__) && !defined(__WXMICROWIN__)
-    if ( !::GetTempFileName(dir.fn_str(), name.fn_str(), 0,
-                            wxStringBuffer(path, MAX_PATH + 1)) )
+    if (!::GetTempFileName(dir.t_str(), name.t_str(), 0,
+                           wxStringBuffer(path, MAX_PATH + 1)))
     {
-        wxLogLastError(_T("GetTempFileName"));
+        wxLogLastError(wxT("GetTempFileName"));
 
         path.clear();
     }
@@ -762,7 +989,7 @@ static wxString wxCreateTempImpl(
 
 #if defined(HAVE_MKSTEMP)
     // scratch space for mkstemp()
-    path += _T("XXXXXX");
+    path += wxT("XXXXXX");
 
     // we need to copy the path to the buffer in which mkstemp() can modify it
     wxCharBuffer buf(path.fn_str());
@@ -792,9 +1019,9 @@ static wxString wxCreateTempImpl(
         if ( ffileTemp )
         {
         #ifdef wx_fdopen
-            ffileTemp->Attach(wx_fdopen(fdTemp, "r+b"));
+            ffileTemp->Attach(wx_fdopen(fdTemp, "r+b"), path);
         #else
-            ffileTemp->Open(path, _T("r+b"));
+            ffileTemp->Open(path, wxT("r+b"));
             close(fdTemp);
         #endif
         }
@@ -809,7 +1036,7 @@ static wxString wxCreateTempImpl(
 
 #ifdef HAVE_MKTEMP
     // same as above
-    path += _T("XXXXXX");
+    path += wxT("XXXXXX");
 
     wxCharBuffer buf = wxConvFile.cWX2MB( path );
     if ( !mktemp( (char*)(const char*) buf ) )
@@ -822,7 +1049,7 @@ static wxString wxCreateTempImpl(
     }
 #else // !HAVE_MKTEMP (includes __DOS__)
     // generate the unique file name ourselves
-    #if !defined(__DOS__) && !defined(__PALMOS__) && (!defined(__MWERKS__) || defined(__DARWIN__) )
+    #if !defined(__DOS__)
     path << (unsigned int)getpid();
     #endif
 
@@ -832,7 +1059,7 @@ static wxString wxCreateTempImpl(
     for ( size_t n = 0; n < numTries; n++ )
     {
         // 3 hex digits is enough for numTries == 1000 < 4096
-        pathTry = path + wxString::Format(_T("%.03x"), (unsigned int) n);
+        pathTry = path + wxString::Format(wxT("%.03x"), (unsigned int) n);
         if ( !wxFileName::FileExists(pathTry) )
         {
             break;
@@ -1053,12 +1280,27 @@ wxString wxFileName::GetTempDir()
 #elif defined(__WINDOWS__) && !defined(__WXMICROWIN__)
         if ( !::GetTempPath(MAX_PATH, wxStringBuffer(dir, MAX_PATH + 1)) )
         {
-            wxLogLastError(_T("GetTempPath"));
+            wxLogLastError(wxT("GetTempPath"));
         }
 #elif defined(__WXMAC__) && wxOSX_USE_CARBON
-        dir = wxMacFindFolder(short(kOnSystemDisk), kTemporaryFolderType, kCreateFolder);
+        dir = wxMacFindFolderNoSeparator(short(kOnSystemDisk), kTemporaryFolderType, kCreateFolder);
 #endif // systems with native way
     }
+    else // we got directory from an environment variable
+    {
+        // remove any trailing path separators, we don't want to ever return
+        // them from this function for consistency
+        const size_t lastNonSep = dir.find_last_not_of(GetPathSeparators());
+        if ( lastNonSep == wxString::npos )
+        {
+            // the string consists entirely of separators, leave only one
+            dir = GetPathSeparator();
+        }
+        else
+        {
+            dir.erase(lastNonSep + 1);
+        }
+    }
 
     // fall back to hard coded value
     if ( dir.empty() )
@@ -1124,7 +1366,7 @@ bool wxFileName::Rmdir(int flags) const
 
 bool wxFileName::Rmdir(const wxString& dir, int flags)
 {
-#ifdef __WXMSW__
+#ifdef __WINDOWS__
     if ( flags & wxPATH_RMDIR_RECURSIVE )
     {
         // SHFileOperation needs double null termination string
@@ -1132,12 +1374,12 @@ bool wxFileName::Rmdir(const wxString& dir, int flags)
         wxString path(dir);
         if ( path.Last() == wxFILE_SEP_PATH )
             path.RemoveLast();
-        path += _T('\0');
+        path += wxT('\0');
 
         SHFILEOPSTRUCT fileop;
         wxZeroMemory(fileop);
         fileop.wFunc = FO_DELETE;
-        fileop.pFrom = path.fn_str();
+        fileop.pFrom = path.t_str();
         fileop.fFlags = FOF_SILENT | FOF_NOCONFIRMATION;
     #ifndef __WXWINCE__
         // FOF_NOERRORUI is not defined in WinCE
@@ -1149,17 +1391,31 @@ bool wxFileName::Rmdir(const wxString& dir, int flags)
         {
             // SHFileOperation may return non-Win32 error codes, so the error
             // message can be incorrect
-            wxLogApiError(_T("SHFileOperation"), ret);
+            wxLogApiError(wxT("SHFileOperation"), ret);
             return false;
         }
 
         return true;
     }
     else if ( flags & wxPATH_RMDIR_FULL )
-#else // !__WXMSW__
+#else // !__WINDOWS__
     if ( flags != 0 )   // wxPATH_RMDIR_FULL or wxPATH_RMDIR_RECURSIVE
-#endif // !__WXMSW__
+#endif // !__WINDOWS__
     {
+#ifndef __WINDOWS__
+        if ( flags & wxPATH_RMDIR_RECURSIVE )
+        {
+            // When deleting the tree recursively, we are supposed to delete
+            // this directory itself even when it is a symlink -- but without
+            // following it. Do it here as wxRmdir() would simply follow if
+            // called for a symlink.
+            if ( wxFileName::Exists(dir, wxFILE_EXISTS_SYMLINK) )
+            {
+                return wxRemoveFile(dir);
+            }
+        }
+#endif // !__WINDOWS__
+
         wxString path(dir);
         if ( path.Last() != wxFILE_SEP_PATH )
             path += wxFILE_SEP_PATH;
@@ -1171,26 +1427,32 @@ bool wxFileName::Rmdir(const wxString& dir, int flags)
 
         wxString filename;
 
-        // first delete all subdirectories
-        bool cont = d.GetFirst(&filename, "", wxDIR_DIRS | wxDIR_HIDDEN);
+        // First delete all subdirectories: notice that we don't follow
+        // symbolic links, potentially leading outside this directory, to avoid
+        // unpleasant surprises.
+        bool cont = d.GetFirst(&filename, wxString(),
+                               wxDIR_DIRS | wxDIR_HIDDEN | wxDIR_NO_FOLLOW);
         while ( cont )
         {
             wxFileName::Rmdir(path + filename, flags);
             cont = d.GetNext(&filename);
         }
 
-#ifndef __WXMSW__
+#ifndef __WINDOWS__
         if ( flags & wxPATH_RMDIR_RECURSIVE )
         {
-            // delete all files too
-            cont = d.GetFirst(&filename, "", wxDIR_FILES | wxDIR_HIDDEN);
+            // Delete all files too and, for the same reasons as above, don't
+            // follow symlinks which could refer to the files outside of this
+            // directory and just delete the symlinks themselves.
+            cont = d.GetFirst(&filename, wxString(),
+                              wxDIR_FILES | wxDIR_HIDDEN | wxDIR_NO_FOLLOW);
             while ( cont )
             {
                 ::wxRemoveFile(path + filename);
                 cont = d.GetNext(&filename);
             }
         }
-#endif // !__WXMSW__
+#endif // !__WINDOWS__
     }
 
     return ::wxRmdir(dir);
@@ -1237,25 +1499,15 @@ bool wxFileName::Normalize(int flags,
     }
 
     // handle ~ stuff under Unix only
-    if ( (format == wxPATH_UNIX) && (flags & wxPATH_NORM_TILDE) )
+    if ( (format == wxPATH_UNIX) && (flags & wxPATH_NORM_TILDE) && m_relative )
     {
         if ( !dirs.IsEmpty() )
         {
             wxString dir = dirs[0u];
-            if ( !dir.empty() && dir[0u] == _T('~') )
+            if ( !dir.empty() && dir[0u] == wxT('~') )
             {
                 // to make the path absolute use the home directory
                 curDir.AssignDir(wxGetUserHome(dir.c_str() + 1));
-
-                // if we are expanding the tilde, then this path
-                // *should* be already relative (since we checked for
-                // the tilde only in the first char of the first dir);
-                // if m_relative==false, it's because it was initialized
-                // from a string which started with /~; in that case
-                // we reach this point but then need m_relative=true
-                // for relative->absolute expansion later
-                m_relative = true;
-
                 dirs.RemoveAt(0u);
             }
         }
@@ -1284,7 +1536,7 @@ bool wxFileName::Normalize(int flags,
 
         // if we used e.g. tilde expansion previously and wxGetUserHome didn't
         // return for some reason an absolute path, then curDir maybe not be absolute!
-        if ( curDir.IsAbsolute(format) )
+        if ( !curDir.m_relative )
         {
             // we have prepended an absolute path and thus we are now an absolute
             // file name too
@@ -1311,15 +1563,24 @@ bool wxFileName::Normalize(int flags,
 
             if ( dir == wxT("..") )
             {
-                if ( m_dirs.IsEmpty() )
+                if ( m_dirs.empty() )
                 {
-                    wxLogError(_("The path '%s' contains too many \"..\"!"),
-                               GetFullPath().c_str());
-                    return false;
-                }
+                    // We have more ".." than directory components so far.
+                    // Don't treat this as an error as the path could have been
+                    // entered by user so try to handle it reasonably: if the
+                    // path is absolute, just ignore the extra ".." because
+                    // "/.." is the same as "/". Otherwise, i.e. for relative
+                    // paths, keep ".." unchanged because removing it would
+                    // modify the file a relative path refers to.
+                    if ( !m_relative )
+                        continue;
 
-                m_dirs.RemoveAt(m_dirs.GetCount() - 1);
-                continue;
+                }
+                else // Normal case, go one step up.
+                {
+                    m_dirs.pop_back();
+                    continue;
+                }
             }
         }
 
@@ -1423,17 +1684,10 @@ bool wxFileName::ReplaceHomeDir(wxPathFormat format)
 // quotation marks."
 
 #if defined(__WIN32__) && !defined(__WXWINCE__) && wxUSE_OLE
-// The following lines are necessary under WinCE
-// #include "wx/msw/private.h"
-// #include <ole2.h>
-#include <shlobj.h>
-#if defined(__WXWINCE__)
-#include <shlguid.h>
-#endif
 
 bool wxFileName::GetShortcutTarget(const wxString& shortcutPath,
                                    wxString& targetFilename,
-                                   wxString* arguments)
+                                   wxString* arguments) const
 {
     wxString path, file, ext;
     wxFileName::SplitPath(shortcutPath, & path, & file, & ext);
@@ -1499,6 +1753,18 @@ bool wxFileName::GetShortcutTarget(const wxString& shortcutPath,
 
 bool wxFileName::IsAbsolute(wxPathFormat format) const
 {
+    // unix paths beginning with ~ are reported as being absolute
+    if ( format == wxPATH_UNIX )
+    {
+        if ( !m_dirs.IsEmpty() )
+        {
+            wxString dir = m_dirs[0u];
+
+            if (!dir.empty() && dir[0u] == wxT('~'))
+                return true;
+        }
+    }
+
     // if our path doesn't start with a path separator, it's not an absolute
     // path
     if ( m_relative )
@@ -1507,7 +1773,7 @@ bool wxFileName::IsAbsolute(wxPathFormat format) const
     if ( !GetVolumeSeparator(format).empty() )
     {
         // this format has volumes and an absolute path must have one, it's not
-        // enough to have the full path to bean absolute file under Windows
+        // enough to have the full path to be an absolute file under Windows
         if ( GetVolume().empty() )
             return false;
     }
@@ -1558,7 +1824,7 @@ bool wxFileName::MakeRelativeTo(const wxString& pathBase, wxPathFormat format)
         // files)
         if ( m_dirs.IsEmpty() && IsDir() )
         {
-            m_dirs.Add(_T('.'));
+            m_dirs.Add(wxT('.'));
         }
     }
 
@@ -1585,8 +1851,15 @@ bool wxFileName::SameAs(const wxFileName& filepath, wxPathFormat format) const
     if ( fn1.GetFullPath() == fn2.GetFullPath() )
         return true;
 
-    // TODO: compare inodes for Unix, this works even when filenames are
-    //       different but files are the same (symlinks) (VZ)
+#if defined(__UNIX__)
+    wxStructStat st1, st2;
+    if ( StatAny(st1, fn1) && StatAny(st2, fn2) )
+    {
+        if ( st1.st_ino == st2.st_ino && st1.st_dev == st2.st_dev )
+            return true;
+    }
+    //else: It's not an error if one or both files don't exist.
+#endif // defined __UNIX__
 
     return false;
 }
@@ -1594,7 +1867,7 @@ bool wxFileName::SameAs(const wxFileName& filepath, wxPathFormat format) const
 /* static */
 bool wxFileName::IsCaseSensitive( wxPathFormat format )
 {
-    // only Unix filenames are truely case-sensitive
+    // only Unix filenames are truly case-sensitive
     return GetFormat(format) == wxPATH_UNIX;
 }
 
@@ -1619,7 +1892,7 @@ wxString wxFileName::GetForbiddenChars(wxPathFormat format)
         case wxPATH_MAC:
             // On a Mac even names with * and ? are allowed (Tested with OS
             // 9.2.1 and OS X 10.2.5)
-            strForbiddenChars = wxEmptyString;
+            strForbiddenChars.clear();
             break;
 
         case wxPATH_DOS:
@@ -1665,7 +1938,7 @@ wxString wxFileName::GetPathSeparators(wxPathFormat format)
             break;
 
         default:
-            wxFAIL_MSG( _T("Unknown wxPATH_XXX style") );
+            wxFAIL_MSG( wxT("Unknown wxPATH_XXX style") );
             // fall through
 
         case wxPATH_UNIX:
@@ -1691,7 +1964,7 @@ wxString wxFileName::GetPathTerminators(wxPathFormat format)
 
     // under VMS the end of the path is ']', not the path separator used to
     // separate the components
-    return format == wxPATH_VMS ? wxString(_T(']')) : GetPathSeparators(format);
+    return format == wxPATH_VMS ? wxString(wxT(']')) : GetPathSeparators(format);
 }
 
 /* static */
@@ -1699,7 +1972,19 @@ bool wxFileName::IsPathSeparator(wxChar ch, wxPathFormat format)
 {
     // wxString::Find() doesn't work as expected with NUL - it will always find
     // it, so test for it separately
-    return ch != _T('\0') && GetPathSeparators(format).Find(ch) != wxNOT_FOUND;
+    return ch != wxT('\0') && GetPathSeparators(format).Find(ch) != wxNOT_FOUND;
+}
+
+/* static */
+bool
+wxFileName::IsMSWUniqueVolumeNamePath(const wxString& path, wxPathFormat format)
+{
+    // return true if the format used is the DOS/Windows one and the string begins
+    // with a Windows unique volume name ("\\?\Volume{guid}\")
+    return format == wxPATH_DOS &&
+            path.length() >= wxMSWUniqueVolumePrefixLength &&
+             path.StartsWith(wxS("\\\\?\\Volume{")) &&
+              path[wxMSWUniqueVolumePrefixLength - 1] == wxFILE_SEP_PATH_DOS;
 }
 
 // ----------------------------------------------------------------------------
@@ -1710,7 +1995,7 @@ bool wxFileName::IsPathSeparator(wxChar ch, wxPathFormat format)
 {
     if ( dir.empty() )
     {
-        wxFAIL_MSG( _T("empty directory passed to wxFileName::InsertDir()") );
+        wxFAIL_MSG( wxT("empty directory passed to wxFileName::InsertDir()") );
 
         return false;
     }
@@ -1720,7 +2005,7 @@ bool wxFileName::IsPathSeparator(wxChar ch, wxPathFormat format)
     {
         if ( dir[n] == GetVolumeSeparator() || IsPathSeparator(dir[n]) )
         {
-            wxFAIL_MSG( _T("invalid directory component in wxFileName") );
+            wxFAIL_MSG( wxT("invalid directory component in wxFileName") );
 
             return false;
         }
@@ -1729,10 +2014,12 @@ bool wxFileName::IsPathSeparator(wxChar ch, wxPathFormat format)
     return true;
 }
 
-void wxFileName::AppendDir( const wxString& dir )
+bool wxFileName::AppendDir( const wxString& dir )
 {
-    if ( IsValidDirComponent(dir) )
-        m_dirs.Add( dir );
+    if (!IsValidDirComponent(dir))
+        return false;
+    m_dirs.Add(dir);
+    return true;
 }
 
 void wxFileName::PrependDir( const wxString& dir )
@@ -1740,10 +2027,12 @@ void wxFileName::PrependDir( const wxString& dir )
     InsertDir(0, dir);
 }
 
-void wxFileName::InsertDir(size_t before, const wxString& dir)
+bool wxFileName::InsertDir(size_t before, const wxString& dir)
 {
-    if ( IsValidDirComponent(dir) )
-        m_dirs.Insert(dir, before);
+    if (!IsValidDirComponent(dir))
+        return false;
+    m_dirs.Insert(dir, before);
+    return true;
 }
 
 void wxFileName::RemoveDir(size_t pos)
@@ -1804,13 +2093,7 @@ wxString wxFileName::GetPath( int flags, wxPathFormat format ) const
         case wxPATH_UNIX:
             if ( !m_relative )
             {
-                // normally the absolute file names start with a slash
-                // with one exception: the ones like "~/foo.bar" don't
-                // have it
-                if ( m_dirs.IsEmpty() || m_dirs[0u] != _T('~') )
-                {
-                    fullpath += wxFILE_SEP_PATH_UNIX;
-                }
+                fullpath += wxFILE_SEP_PATH_UNIX;
             }
             break;
 
@@ -1899,14 +2182,14 @@ wxString wxFileName::GetShortPath() const
 {
     wxString path(GetFullPath());
 
-#if defined(__WXMSW__) && defined(__WIN32__) && !defined(__WXMICROWIN__) && !defined(__WXWINCE__)
-    DWORD sz = ::GetShortPathName(path.fn_str(), NULL, 0);
+#if defined(__WINDOWS__) && defined(__WIN32__) && !defined(__WXMICROWIN__) && !defined(__WXWINCE__)
+    DWORD sz = ::GetShortPathName(path.t_str(), NULL, 0);
     if ( sz != 0 )
     {
         wxString pathOut;
         if ( ::GetShortPathName
                (
-                path.fn_str(),
+                path.t_str(),
                 wxStringBuffer(pathOut, sz),
                 sz
                ) != 0 )
@@ -1941,13 +2224,13 @@ wxString wxFileName::GetLongPath() const
         {
             s_triedToLoad = true;
 
-            wxDynamicLibrary dllKernel(_T("kernel32"));
+            wxDynamicLibrary dllKernel(wxT("kernel32"));
 
-            const wxChar* GetLongPathName = _T("GetLongPathName")
+            const wxChar* GetLongPathName = wxT("GetLongPathName")
 #if wxUSE_UNICODE
-                              _T("W");
+                              wxT("W");
 #else // ANSI
-                              _T("A");
+                              wxT("A");
 #endif // Unicode/ANSI
 
             if ( dllKernel.HasSymbol(GetLongPathName) )
@@ -1964,12 +2247,12 @@ wxString wxFileName::GetLongPath() const
 
     if ( s_pfnGetLongPathName )
     {
-        DWORD dwSize = (*s_pfnGetLongPathName)(path.fn_str(), NULL, 0);
+        DWORD dwSize = (*s_pfnGetLongPathName)(path.t_str(), NULL, 0);
         if ( dwSize > 0 )
         {
             if ( (*s_pfnGetLongPathName)
                  (
-                  path.fn_str(),
+                  path.t_str(),
                   wxStringBuffer(pathOut, dwSize),
                   dwSize
                  ) != 0 )
@@ -1991,7 +2274,7 @@ wxString wxFileName::GetLongPath() const
                   GetVolumeSeparator(wxPATH_DOS) +
                   GetPathSeparator(wxPATH_DOS);
     else
-        pathOut = wxEmptyString;
+        pathOut.clear();
 
     wxArrayString dirs = GetDirs();
     dirs.Add(GetFullName());
@@ -2021,7 +2304,7 @@ wxString wxFileName::GetLongPath() const
             continue;
         }
 
-        hFind = ::FindFirstFile(tmpPath.fn_str(), &findFileData);
+        hFind = ::FindFirstFile(tmpPath.t_str(), &findFileData);
         if (hFind == INVALID_HANDLE_VALUE)
         {
             // Error: most likely reason is that path doesn't exist, so
@@ -2049,7 +2332,7 @@ wxPathFormat wxFileName::GetFormat( wxPathFormat format )
 {
     if (format == wxPATH_NATIVE)
     {
-#if defined(__WXMSW__) || defined(__OS2__) || defined(__DOS__)
+#if defined(__WINDOWS__) || defined(__OS2__) || defined(__DOS__)
         format = wxPATH_DOS;
 #elif defined(__VMS)
         format = wxPATH_VMS;
@@ -2092,9 +2375,26 @@ wxFileName::SplitVolume(const wxString& fullpathWithVolume,
 
     wxString fullpath = fullpathWithVolume;
 
-    // special Windows UNC paths hack: transform \\share\path into share:path
-    if ( IsUNCPath(fullpath, format) )
+    if ( IsMSWUniqueVolumeNamePath(fullpath, format) )
     {
+        // special Windows unique volume names hack: transform
+        // \\?\Volume{guid}\path into Volume{guid}:path
+        // note: this check must be done before the check for UNC path
+
+        // we know the last backslash from the unique volume name is located
+        // there from IsMSWUniqueVolumeNamePath
+        fullpath[wxMSWUniqueVolumePrefixLength - 1] = wxFILE_SEP_DSK;
+
+        // paths starting with a unique volume name should always be absolute
+        fullpath.insert(wxMSWUniqueVolumePrefixLength, 1, wxFILE_SEP_PATH_DOS);
+
+        // remove the leading "\\?\" part
+        fullpath.erase(0, 4);
+    }
+    else if ( IsUNCPath(fullpath, format) )
+    {
+        // special Windows UNC paths hack: transform \\share\path into share:path
+
         fullpath.erase(0, 2);
 
         size_t posFirstSlash =
@@ -2113,8 +2413,11 @@ wxFileName::SplitVolume(const wxString& fullpathWithVolume,
     {
         wxString sepVol = GetVolumeSeparator(format);
 
+        // we have to exclude the case of a colon in the very beginning of the
+        // string as it can't be a volume separator (nor can this be a valid
+        // DOS file name at all but we'll leave dealing with this to our caller)
         size_t posFirstColon = fullpath.find_first_of(sepVol);
-        if ( posFirstColon != wxString::npos )
+        if ( posFirstColon && posFirstColon != wxString::npos )
         {
             if ( pstrVolume )
             {
@@ -2152,7 +2455,7 @@ void wxFileName::SplitPath(const wxString& fullpathWithVolume,
     if ( (posLastDot != wxString::npos) &&
          (posLastDot == 0 ||
             IsPathSeparator(fullpath[posLastDot - 1]) ||
-            (format == wxPATH_VMS && fullpath[posLastDot - 1] == _T(']'))) )
+            (format == wxPATH_VMS && fullpath[posLastDot - 1] == wxT(']'))) )
     {
         // dot may be (and commonly -- at least under Unix -- is) the first
         // character of the filename, don't treat the entire filename as
@@ -2194,7 +2497,7 @@ void wxFileName::SplitPath(const wxString& fullpathWithVolume,
             // special VMS hack: remove the initial bracket
             if ( format == wxPATH_VMS )
             {
-                if ( (*pstrPath)[0u] == _T('[') )
+                if ( (*pstrPath)[0u] == wxT('[') )
                     pstrPath->erase(0, 1);
             }
         }
@@ -2277,7 +2580,7 @@ wxString wxFileName::StripExtension(const wxString& fullpath)
 
 bool wxFileName::SetTimes(const wxDateTime *dtAccess,
                           const wxDateTime *dtMod,
-                          const wxDateTime *dtCreate)
+                          const wxDateTime *dtCreate) const
 {
 #if defined(__WIN32__)
     FILETIME ftAccess, ftCreate, ftWrite;
@@ -2309,7 +2612,7 @@ bool wxFileName::SetTimes(const wxDateTime *dtAccess,
         flags = 0;
     }
 
-    wxFileHandle fh(path, wxFileHandle::Write, flags);
+    wxFileHandle fh(path, wxFileHandle::WriteAttr, flags);
     if ( fh.IsOk() )
     {
         if ( ::SetFileTime(fh,
@@ -2350,7 +2653,7 @@ bool wxFileName::SetTimes(const wxDateTime *dtAccess,
     return false;
 }
 
-bool wxFileName::Touch()
+bool wxFileName::Touch() const
 {
 #if defined(__UNIX_LIKE__)
     // under Unix touching file is simple: just pass NULL to utime()
@@ -2393,7 +2696,7 @@ bool wxFileName::GetTimes(wxDateTime *dtAccess,
     }
     else // file
     {
-        wxFileHandle fh(GetFullPath(), wxFileHandle::Read);
+        wxFileHandle fh(GetFullPath(), wxFileHandle::ReadAttr);
         if ( fh.IsOk() )
         {
             ok = ::GetFileTime(fh,
@@ -2421,14 +2724,16 @@ bool wxFileName::GetTimes(wxDateTime *dtAccess,
 #elif defined(__UNIX_LIKE__) || defined(__WXMAC__) || defined(__OS2__) || (defined(__DOS__) && defined(__WATCOMC__))
     // no need to test for IsDir() here
     wxStructStat stBuf;
-    if ( wxStat( GetFullPath().c_str(), &stBuf) == 0 )
+    if ( StatAny(stBuf, *this) )
     {
+        // Android defines st_*time fields as unsigned long, but time_t as long,
+        // hence the static_casts.
         if ( dtAccess )
-            dtAccess->Set(stBuf.st_atime);
+            dtAccess->Set(static_cast<time_t>(stBuf.st_atime));
         if ( dtMod )
-            dtMod->Set(stBuf.st_mtime);
+            dtMod->Set(static_cast<time_t>(stBuf.st_mtime));
         if ( dtCreate )
-            dtCreate->Set(stBuf.st_ctime);
+            dtCreate->Set(static_cast<time_t>(stBuf.st_ctime));
 
         return true;
     }
@@ -2459,11 +2764,8 @@ wxULongLong wxFileName::GetSize(const wxString &filename)
     if (!wxFileExists(filename))
         return wxInvalidSize;
 
-#if defined(__WXPALMOS__)
-    // TODO
-    return wxInvalidSize;
-#elif defined(__WIN32__)
-    wxFileHandle f(filename, wxFileHandle::Read);
+#if defined(__WIN32__)
+    wxFileHandle f(filename, wxFileHandle::ReadAttr);
     if (!f.IsOk())
         return wxInvalidSize;
 
@@ -2475,11 +2777,7 @@ wxULongLong wxFileName::GetSize(const wxString &filename)
     return wxULongLong(lpFileSizeHigh, ret);
 #else // ! __WIN32__
     wxStructStat st;
-#ifndef wxNEED_WX_UNISTD_H
-    if (wxStat( filename.fn_str() , &st) != 0)
-#else
     if (wxStat( filename, &st) != 0)
-#endif
         return wxInvalidSize;
     return wxULongLong(st.st_size);
 #endif
@@ -2488,27 +2786,54 @@ wxULongLong wxFileName::GetSize(const wxString &filename)
 /* static */
 wxString wxFileName::GetHumanReadableSize(const wxULongLong &bs,
                                           const wxString &nullsize,
-                                          int precision)
+                                          int precision,
+                                          wxSizeConvention conv)
 {
-    static const double KILOBYTESIZE = 1024.0;
-    static const double MEGABYTESIZE = 1024.0*KILOBYTESIZE;
-    static const double GIGABYTESIZE = 1024.0*MEGABYTESIZE;
-    static const double TERABYTESIZE = 1024.0*GIGABYTESIZE;
-
-    if (bs == 0 || bs == wxInvalidSize)
+    // deal with trivial case first
+    if ( bs == 0 || bs == wxInvalidSize )
         return nullsize;
 
-    double bytesize = bs.ToDouble();
-    if (bytesize < KILOBYTESIZE)
-        return wxString::Format(_("%s B"), bs.ToString().c_str());
-    if (bytesize < MEGABYTESIZE)
-        return wxString::Format(_("%.*f kB"), precision, bytesize/KILOBYTESIZE);
-    if (bytesize < GIGABYTESIZE)
-        return wxString::Format(_("%.*f MB"), precision, bytesize/MEGABYTESIZE);
-    if (bytesize < TERABYTESIZE)
-        return wxString::Format(_("%.*f GB"), precision, bytesize/GIGABYTESIZE);
+    // depending on the convention used the multiplier may be either 1000 or
+    // 1024 and the binary infix may be empty (for "KB") or "i" (for "KiB")
+    double multiplier = 1024.;
+    wxString biInfix;
+
+    switch ( conv )
+    {
+        case wxSIZE_CONV_TRADITIONAL:
+            // nothing to do, this corresponds to the default values of both
+            // the multiplier and infix string
+            break;
+
+        case wxSIZE_CONV_IEC:
+            biInfix = "i";
+            break;
+
+        case wxSIZE_CONV_SI:
+            multiplier = 1000;
+            break;
+    }
+
+    const double kiloByteSize = multiplier;
+    const double megaByteSize = multiplier * kiloByteSize;
+    const double gigaByteSize = multiplier * megaByteSize;
+    const double teraByteSize = multiplier * gigaByteSize;
+
+    const double bytesize = bs.ToDouble();
+
+    wxString result;
+    if ( bytesize < kiloByteSize )
+        result.Printf("%s B", bs.ToString());
+    else if ( bytesize < megaByteSize )
+        result.Printf("%.*f K%sB", precision, bytesize/kiloByteSize, biInfix);
+    else if (bytesize < gigaByteSize)
+        result.Printf("%.*f M%sB", precision, bytesize/megaByteSize, biInfix);
+    else if (bytesize < teraByteSize)
+        result.Printf("%.*f G%sB", precision, bytesize/gigaByteSize, biInfix);
+    else
+        result.Printf("%.*f T%sB", precision, bytesize/teraByteSize, biInfix);
 
-    return wxString::Format(_("%.*f TB"), precision, bytesize/TERABYTESIZE);
+    return result;
 }
 
 wxULongLong wxFileName::GetSize() const
@@ -2516,9 +2841,11 @@ wxULongLong wxFileName::GetSize() const
     return GetSize(GetFullPath());
 }
 
-wxString wxFileName::GetHumanReadableSize(const wxString &failmsg, int precision) const
+wxString wxFileName::GetHumanReadableSize(const wxString& failmsg,
+                                          int precision,
+                                          wxSizeConvention conv) const
 {
-    return GetHumanReadableSize(GetSize(), failmsg, precision);
+    return GetHumanReadableSize(GetSize(), failmsg, precision, conv);
 }
 
 #endif // wxUSE_LONGLONG
@@ -2608,7 +2935,7 @@ bool wxFileName::MacSetTypeAndCreator( wxUint32 type , wxUint32 creator )
     return false ;
 }
 
-bool wxFileName::MacGetTypeAndCreator( wxUint32 *type , wxUint32 *creator )
+bool wxFileName::MacGetTypeAndCreator( wxUint32 *type , wxUint32 *creator ) const
 {
     FSRef fsRef ;
     FSCatalogInfo catInfo;