Adding upstream version 6.0.4-dfsg.upstream/6.0.4-dfsgupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 2440 insertions, 0 deletions

diff --git a/src/libs/xpcom18a4/xpcom/io/nsLocalFileWin.cpp b/src/libs/xpcom18a4/xpcom/io/nsLocalFileWin.cpp
new file mode 100644
index 00000000..63414fc3
--- /dev/null
+++ b/src/libs/xpcom18a4/xpcom/io/nsLocalFileWin.cpp
@@ -0,0 +1,2440 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0/LGPL 2.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is Mozilla Communicator client code, released
+ * March 31, 1998.
+ *
+ * The Initial Developer of the Original Code is
+ * Netscape Communications Corporation.
+ * Portions created by the Initial Developer are Copyright (C) 1998-1999
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ *   Doug Turner <dougt@netscape.com>
+ *   Dean Tessman <dean_tessman@hotmail.com>
+ *   Brodie Thiesfield <brofield@jellycan.com>
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either of the GNU General Public License Version 2 or later (the "GPL"),
+ * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+ * in which case the provisions of the GPL or the LGPL are applicable instead
+ * of those above. If you wish to allow use of your version of this file only
+ * under the terms of either the GPL or the LGPL, and not to allow others to
+ * use your version of this file under the terms of the MPL, indicate your
+ * decision by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL or the LGPL. If you do not delete
+ * the provisions above, a recipient may use your version of this file under
+ * the terms of any one of the MPL, the GPL or the LGPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+
+
+#include "nsCOMPtr.h"
+#include "nsMemory.h"
+
+#include "nsLocalFile.h"
+#include "nsNativeCharsetUtils.h"
+
+#include "nsISimpleEnumerator.h"
+#include "nsIComponentManager.h"
+#include "prtypes.h"
+#include "prio.h"
+
+#include "nsXPIDLString.h"
+#include "nsReadableUtils.h"
+
+#include <direct.h>
+#include <windows.h>
+
+#include "shellapi.h"
+#include "shlguid.h"
+
+#include  <io.h>
+#include  <stdio.h>
+#include  <stdlib.h>
+#include  <mbstring.h>
+
+#include "nsXPIDLString.h"
+#include "prproces.h"
+#include "nsITimelineService.h"
+
+#include "nsAutoLock.h"
+#include "SpecialSystemDirectory.h"
+
+// _mbsstr isn't declared in w32api headers but it's there in the libs
+#ifdef __MINGW32__
+extern "C" {
+unsigned char *_mbsstr( const unsigned char *str,
+                        const unsigned char *substr );
+}
+#endif
+
+class nsDriveEnumerator : public nsISimpleEnumerator
+{
+public:
+    nsDriveEnumerator();
+    virtual ~nsDriveEnumerator();
+    NS_DECL_ISUPPORTS
+    NS_DECL_NSISIMPLEENUMERATOR
+    nsresult Init();
+private:
+    /* mDrives and mLetter share data
+     * Init sets them.
+     * HasMoreElements reads mLetter.
+     * GetNext advances mLetter.
+     */
+    nsCString mDrives;
+    const char *mLetter;
+};
+
+//----------------------------------------------------------------------------
+// short cut resolver
+//----------------------------------------------------------------------------
+
+class ShortcutResolver
+{
+public:
+    ShortcutResolver();
+    // nonvirtual since we're not subclassed
+    ~ShortcutResolver();
+
+    nsresult Init();
+    nsresult Resolve(const WCHAR* in, char* out);
+
+private:
+    PRLock*       mLock;
+    IPersistFile* mPersistFile;
+    IShellLink*   mShellLink;
+};
+
+ShortcutResolver::ShortcutResolver()
+{
+    mLock = nsnull;
+    mPersistFile = nsnull;
+    mShellLink   = nsnull;
+}
+
+ShortcutResolver::~ShortcutResolver()
+{
+    if (mLock)
+        PR_DestroyLock(mLock);
+
+    // Release the pointer to the IPersistFile interface.
+    if (mPersistFile)
+        mPersistFile->Release();
+
+    // Release the pointer to the IShellLink interface.
+    if(mShellLink)
+        mShellLink->Release();
+
+    CoUninitialize();
+}
+
+nsresult
+ShortcutResolver::Init()
+{
+    CoInitialize(NULL);  // FIX: we should probably move somewhere higher up during startup
+
+    mLock = PR_NewLock();
+    if (!mLock)
+        return NS_ERROR_FAILURE;
+
+    HRESULT hres = CoCreateInstance(CLSID_ShellLink,
+                                    NULL,
+                                    CLSCTX_INPROC_SERVER,
+                                    IID_IShellLink,
+                                    (void**)&mShellLink);
+    if (SUCCEEDED(hres))
+    {
+        // Get a pointer to the IPersistFile interface.
+        hres = mShellLink->QueryInterface(IID_IPersistFile, (void**)&mPersistFile);
+    }
+
+    if (mPersistFile == nsnull || mShellLink == nsnull)
+        return NS_ERROR_FAILURE;
+
+    return NS_OK;
+}
+
+// |out| must be an allocated buffer of size MAX_PATH
+nsresult
+ShortcutResolver::Resolve(const WCHAR* in, char* out)
+{
+    nsAutoLock lock(mLock);
+
+    // see if we can Load the path.
+    HRESULT hres = mPersistFile->Load(in, STGM_READ);
+
+    if (FAILED(hres))
+        return NS_ERROR_FAILURE;
+
+    // Resolve the link.
+    hres = mShellLink->Resolve(nsnull, SLR_NO_UI );
+
+    if (FAILED(hres))
+        return NS_ERROR_FAILURE;
+
+    WIN32_FIND_DATA wfd;
+    // Get the path to the link target.
+    hres = mShellLink->GetPath( out, MAX_PATH, &wfd, SLGP_UNCPRIORITY );
+    if (FAILED(hres))
+        return NS_ERROR_FAILURE;
+    return NS_OK;
+}
+
+static ShortcutResolver * gResolver = nsnull;
+
+static nsresult NS_CreateShortcutResolver()
+{
+    gResolver = new ShortcutResolver();
+    if (!gResolver)
+        return NS_ERROR_OUT_OF_MEMORY;
+
+    return gResolver->Init();
+}
+
+static void NS_DestroyShortcutResolver()
+{
+    delete gResolver;
+    gResolver = nsnull;
+}
+
+
+//-----------------------------------------------------------------------------
+// static helper functions
+//-----------------------------------------------------------------------------
+
+// certainly not all the error that can be
+// encountered, but many of them common ones
+static nsresult ConvertWinError(DWORD winErr)
+{
+    nsresult rv;
+
+    switch (winErr)
+    {
+        case ERROR_FILE_NOT_FOUND:
+        case ERROR_PATH_NOT_FOUND:
+        case ERROR_INVALID_DRIVE:
+            rv = NS_ERROR_FILE_NOT_FOUND;
+            break;
+        case ERROR_ACCESS_DENIED:
+        case ERROR_NOT_SAME_DEVICE:
+            rv = NS_ERROR_FILE_ACCESS_DENIED;
+            break;
+        case ERROR_NOT_ENOUGH_MEMORY:
+        case ERROR_INVALID_BLOCK:
+        case ERROR_INVALID_HANDLE:
+        case ERROR_ARENA_TRASHED:
+            rv = NS_ERROR_OUT_OF_MEMORY;
+            break;
+        case ERROR_CURRENT_DIRECTORY:
+            rv = NS_ERROR_FILE_DIR_NOT_EMPTY;
+            break;
+        case ERROR_WRITE_PROTECT:
+            rv = NS_ERROR_FILE_READ_ONLY;
+            break;
+        case ERROR_HANDLE_DISK_FULL:
+            rv = NS_ERROR_FILE_TOO_BIG;
+            break;
+        case ERROR_FILE_EXISTS:
+        case ERROR_ALREADY_EXISTS:
+        case ERROR_CANNOT_MAKE:
+            rv = NS_ERROR_FILE_ALREADY_EXISTS;
+            break;
+        case 0:
+            rv = NS_OK;
+            break;
+        default:
+            rv = NS_ERROR_FAILURE;
+            break;
+    }
+    return rv;
+}
+
+// definition of INVALID_SET_FILE_POINTER from VC.NET header files
+// it doesn't appear to be defined by VC6
+#ifndef INVALID_SET_FILE_POINTER
+# define INVALID_SET_FILE_POINTER ((DWORD)-1)
+#endif
+// same goes for INVALID_FILE_ATTRIBUTES
+#ifndef INVALID_FILE_ATTRIBUTES
+# define INVALID_FILE_ATTRIBUTES ((DWORD)-1)
+#endif
+
+// as suggested in the MSDN documentation on SetFilePointer
+static __int64 
+MyFileSeek64(HANDLE aHandle, __int64 aDistance, DWORD aMoveMethod)
+{
+    LARGE_INTEGER li;
+
+    li.QuadPart = aDistance;
+    li.LowPart = SetFilePointer(aHandle, li.LowPart, &li.HighPart, aMoveMethod);
+    if (li.LowPart == INVALID_SET_FILE_POINTER && GetLastError() != NO_ERROR)
+    {
+        li.QuadPart = -1;
+    }
+
+    return li.QuadPart;
+}
+
+static PRBool
+IsShortcutPath(const char *path)
+{
+    // Under Windows, the shortcuts are just files with a ".lnk" extension. 
+    // Note also that we don't resolve links in the middle of paths.
+    // i.e. "c:\foo.lnk\bar.txt" is invalid.
+    NS_ABORT_IF_FALSE(path, "don't pass nulls");
+    const char * ext = (const char *) _mbsrchr((const unsigned char *)path, '.');
+    if (!ext || 0 != stricmp(ext + 1, "lnk"))
+        return PR_FALSE;
+    return PR_TRUE;
+}
+
+//-----------------------------------------------------------------------------
+// nsDirEnumerator
+//-----------------------------------------------------------------------------
+
+class nsDirEnumerator : public nsISimpleEnumerator
+{
+    public:
+
+        NS_DECL_ISUPPORTS
+
+        nsDirEnumerator() : mDir(nsnull)
+        {
+        }
+
+        nsresult Init(nsILocalFile* parent)
+        {
+            nsCAutoString filepath;
+            parent->GetNativeTarget(filepath);
+
+            if (filepath.IsEmpty())
+            {
+                parent->GetNativePath(filepath);
+            }
+
+            if (filepath.IsEmpty())
+            {
+                return NS_ERROR_UNEXPECTED;
+            }
+
+            mDir = PR_OpenDir(filepath.get());
+            if (mDir == nsnull)    // not a directory?
+                return NS_ERROR_FAILURE;
+
+            mParent = parent;
+            return NS_OK;
+        }
+
+        NS_IMETHOD HasMoreElements(PRBool *result)
+        {
+            nsresult rv;
+            if (mNext == nsnull && mDir)
+            {
+                PRDirEntry* entry = PR_ReadDir(mDir, PR_SKIP_BOTH);
+                if (entry == nsnull)
+                {
+                    // end of dir entries
+
+                    PRStatus status = PR_CloseDir(mDir);
+                    if (status != PR_SUCCESS)
+                        return NS_ERROR_FAILURE;
+                    mDir = nsnull;
+
+                    *result = PR_FALSE;
+                    return NS_OK;
+                }
+
+                nsCOMPtr<nsIFile> file;
+                rv = mParent->Clone(getter_AddRefs(file));
+                if (NS_FAILED(rv))
+                    return rv;
+
+                rv = file->AppendNative(nsDependentCString(entry->name));
+                if (NS_FAILED(rv))
+                    return rv;
+
+                // make sure the thing exists.  If it does, try the next one.
+                PRBool exists;
+                rv = file->Exists(&exists);
+                if (NS_FAILED(rv) || !exists)
+                {
+                    return HasMoreElements(result);
+                }
+
+                mNext = do_QueryInterface(file);
+            }
+            *result = mNext != nsnull;
+            return NS_OK;
+        }
+
+        NS_IMETHOD GetNext(nsISupports **result)
+        {
+            nsresult rv;
+            PRBool hasMore;
+            rv = HasMoreElements(&hasMore);
+            if (NS_FAILED(rv)) return rv;
+
+            *result = mNext;        // might return nsnull
+            NS_IF_ADDREF(*result);
+
+            mNext = nsnull;
+            return NS_OK;
+        }
+
+        // dtor can be non-virtual since there are no subclasses, but must be
+        // public to use the class on the stack.
+        ~nsDirEnumerator()
+        {
+            if (mDir)
+            {
+                PRStatus status = PR_CloseDir(mDir);
+                NS_ASSERTION(status == PR_SUCCESS, "close failed");
+            }
+        }
+
+    protected:
+        PRDir*                  mDir;
+        nsCOMPtr<nsILocalFile>  mParent;
+        nsCOMPtr<nsILocalFile>  mNext;
+};
+
+NS_IMPL_ISUPPORTS1(nsDirEnumerator, nsISimpleEnumerator)
+
+
+//-----------------------------------------------------------------------------
+// nsLocalFile <public>
+//-----------------------------------------------------------------------------
+
+nsLocalFile::nsLocalFile()
+ :  mFollowSymlinks(PR_FALSE)
+{
+    MakeDirty();
+    memset(&mFileInfo64, 0, sizeof(mFileInfo64));
+}
+
+NS_METHOD
+nsLocalFile::nsLocalFileConstructor(nsISupports* outer, const nsIID& aIID, void* *aInstancePtr)
+{
+    NS_ENSURE_ARG_POINTER(aInstancePtr);
+    NS_ENSURE_NO_AGGREGATION(outer);
+
+    nsLocalFile* inst = new nsLocalFile();
+    if (inst == NULL)
+        return NS_ERROR_OUT_OF_MEMORY;
+
+    nsresult rv = inst->QueryInterface(aIID, aInstancePtr);
+    if (NS_FAILED(rv))
+    {
+        delete inst;
+        return rv;
+    }
+    return NS_OK;
+}
+
+
+//-----------------------------------------------------------------------------
+// nsLocalFile::nsISupports
+//-----------------------------------------------------------------------------
+
+NS_IMPL_THREADSAFE_ISUPPORTS2(nsLocalFile, nsILocalFile, nsIFile)
+
+
+//-----------------------------------------------------------------------------
+// nsLocalFile <private>
+//-----------------------------------------------------------------------------
+
+nsLocalFile::nsLocalFile(const nsLocalFile& other)
+  : mDirty(other.mDirty)
+  , mFollowSymlinks(other.mFollowSymlinks)
+  , mWorkingPath(other.mWorkingPath)
+  , mResolvedPath(other.mResolvedPath)
+  , mFileInfo64(other.mFileInfo64)
+{
+}
+
+// Resolve the shortcut file from mWorkingPath and write the path 
+// it points to into mResolvedPath.
+nsresult
+nsLocalFile::ResolveShortcut()
+{
+    // we can't do anything without the resolver
+    if (!gResolver)
+        return NS_ERROR_FAILURE;
+
+    // allocate the memory for the result of the resolution
+    nsAutoString ucsBuf;
+    NS_CopyNativeToUnicode(mWorkingPath, ucsBuf);
+
+    mResolvedPath.SetLength(MAX_PATH);
+    char *resolvedPath = mResolvedPath.BeginWriting();
+
+    // resolve this shortcut
+    nsresult rv = gResolver->Resolve(ucsBuf.get(), resolvedPath);
+
+    size_t len = NS_FAILED(rv) ? 0 : strlen(resolvedPath);
+    mResolvedPath.SetLength(len);
+
+    return rv;
+}
+
+// Resolve any shortcuts and stat the resolved path. After a successful return
+// the path is guaranteed valid and the members of mFileInfo64 can be used.
+nsresult
+nsLocalFile::ResolveAndStat()
+{
+    // if we aren't dirty then we are already done
+    if (!mDirty)
+        return NS_OK;
+
+    // we can't resolve/stat anything that isn't a valid NSPR addressable path
+    if (mWorkingPath.IsEmpty())
+        return NS_ERROR_FILE_INVALID_PATH;
+
+    // this is usually correct
+    mResolvedPath.Assign(mWorkingPath);
+
+    // slutty hack designed to work around bug 134796 until it is fixed
+    char temp[4];
+    const char *nsprPath = mWorkingPath.get();
+    if (mWorkingPath.Length() == 2 && mWorkingPath.CharAt(1) == ':') 
+    {
+        temp[0] = mWorkingPath[0];
+        temp[1] = mWorkingPath[1];
+        temp[2] = '\\';
+        temp[3] = '\0';
+        nsprPath = temp;
+    }
+
+    // first we will see if the working path exists. If it doesn't then
+    // there is nothing more that can be done
+    PRStatus status = PR_GetFileInfo64(nsprPath, &mFileInfo64);
+    if (status != PR_SUCCESS)
+        return NS_ERROR_FILE_NOT_FOUND;
+
+    // if this isn't a shortcut file or we aren't following symlinks then we're done 
+    if (!mFollowSymlinks 
+        || mFileInfo64.type != PR_FILE_FILE 
+        || !IsShortcutPath(mWorkingPath.get()))
+    {
+        mDirty = PR_FALSE;
+        return NS_OK;
+    }
+
+    // we need to resolve this shortcut to what it points to, this will
+    // set mResolvedPath. Even if it fails we need to have the resolved
+    // path equal to working path for those functions that always use
+    // the resolved path.
+    nsresult rv = ResolveShortcut();
+    if (NS_FAILED(rv))
+    {
+        mResolvedPath.Assign(mWorkingPath);
+        return rv;
+    }
+
+    // get the details of the resolved path
+    status = PR_GetFileInfo64(mResolvedPath.get(), &mFileInfo64);
+    if (status != PR_SUCCESS)
+        return NS_ERROR_FILE_NOT_FOUND;
+
+    mDirty = PR_FALSE;
+    return NS_OK;
+}
+
+
+//-----------------------------------------------------------------------------
+// nsLocalFile::nsIFile,nsILocalFile
+//-----------------------------------------------------------------------------
+
+NS_IMETHODIMP
+nsLocalFile::Clone(nsIFile **file)
+{
+    // Just copy-construct ourselves
+    *file = new nsLocalFile(*this);
+    if (!*file)
+      return NS_ERROR_OUT_OF_MEMORY;
+
+    NS_ADDREF(*file);
+    
+    return NS_OK;
+}
+
+NS_IMETHODIMP
+nsLocalFile::InitWithNativePath(const nsACString &filePath)
+{
+    MakeDirty();
+
+    nsACString::const_iterator begin, end;
+    filePath.BeginReading(begin);
+    filePath.EndReading(end);
+
+    // input string must not be empty
+    if (begin == end)
+        return NS_ERROR_FAILURE;
+
+    char firstChar = *begin;
+    char secondChar = *(++begin);
+
+    // just do a sanity check.  if it has any forward slashes, it is not a Native path
+    // on windows.  Also, it must have a colon at after the first char.
+
+    char *path = nsnull;
+    PRInt32 pathLen = 0;
+
+    if ( ( (secondChar == ':') && !FindCharInReadable('/', begin, end) ) ||  // normal path
+         ( (firstChar == '\\') && (secondChar == '\\') ) )  // network path
+    {
+        // This is a native path
+        path = ToNewCString(filePath);
+        pathLen = filePath.Length();
+    }
+
+    if (path == nsnull)
+        return NS_ERROR_FILE_UNRECOGNIZED_PATH;
+
+    // kill any trailing '\' provided it isn't the second char of DBCS
+    PRInt32 len = pathLen - 1;
+    if (path[len] == '\\' &&
+        (!::IsDBCSLeadByte(path[len-1]) ||
+         _mbsrchr((const unsigned char *)path, '\\') == (const unsigned char *)path+len))
+    {
+        path[len] = '\0';
+        pathLen = len;
+    }
+
+    mWorkingPath.Adopt(path, pathLen);
+    return NS_OK;
+}
+
+NS_IMETHODIMP
+nsLocalFile::OpenNSPRFileDesc(PRInt32 flags, PRInt32 mode, PRFileDesc **_retval)
+{
+    nsresult rv = ResolveAndStat();
+    if (NS_FAILED(rv) && rv != NS_ERROR_FILE_NOT_FOUND)
+        return rv;
+
+    *_retval = PR_Open(mResolvedPath.get(), flags, mode);
+    if (*_retval)
+        return NS_OK;
+
+    return NS_ErrorAccordingToNSPR();
+}
+
+
+NS_IMETHODIMP
+nsLocalFile::OpenANSIFileDesc(const char *mode, FILE * *_retval)
+{
+    nsresult rv = ResolveAndStat();
+    if (NS_FAILED(rv) && rv != NS_ERROR_FILE_NOT_FOUND)
+        return rv;
+
+    *_retval = fopen(mResolvedPath.get(), mode);
+    if (*_retval)
+        return NS_OK;
+
+    return NS_ERROR_FAILURE;
+}
+
+
+
+NS_IMETHODIMP
+nsLocalFile::Create(PRUint32 type, PRUint32 attributes)
+{
+    if (type != NORMAL_FILE_TYPE && type != DIRECTORY_TYPE)
+        return NS_ERROR_FILE_UNKNOWN_TYPE;
+
+    nsresult rv = ResolveAndStat();
+    if (NS_FAILED(rv) && rv != NS_ERROR_FILE_NOT_FOUND)
+        return rv;
+
+    // create directories to target
+    //
+    // A given local file can be either one of these forms:
+    //
+    //   - normal:    X:\some\path\on\this\drive
+    //                       ^--- start here
+    //
+    //   - UNC path:  \\machine\volume\some\path\on\this\drive
+    //                                     ^--- start here
+    //
+    // Skip the first 'X:\' for the first form, and skip the first full
+    // '\\machine\volume\' segment for the second form.
+
+    const unsigned char* path = (const unsigned char*) mResolvedPath.get();
+    if (path[0] == '\\' && path[1] == '\\')
+    {
+        // dealing with a UNC path here; skip past '\\machine\'
+        path = _mbschr(path + 2, '\\');
+        if (!path)
+            return NS_ERROR_FILE_INVALID_PATH;
+        ++path;
+    }
+
+    // search for first slash after the drive (or volume) name
+    unsigned char* slash = _mbschr(path, '\\');
+
+    if (slash)
+    {
+        // skip the first '\\'
+        ++slash;
+        slash = _mbschr(slash, '\\');
+
+        while (slash)
+        {
+            *slash = '\0';
+
+            if (!CreateDirectoryA(mResolvedPath.get(), NULL)) {
+                rv = ConvertWinError(GetLastError());
+                // perhaps the base path already exists, or perhaps we don't have
+                // permissions to create the directory.  NOTE: access denied could
+                // occur on a parent directory even though it exists.
+                if (rv != NS_ERROR_FILE_ALREADY_EXISTS &&
+                    rv != NS_ERROR_FILE_ACCESS_DENIED)
+                    return rv;
+            }
+            *slash = '\\';
+            ++slash;
+            slash = _mbschr(slash, '\\');
+        }
+    }
+
+    if (type == NORMAL_FILE_TYPE)
+    {
+        PRFileDesc* file = PR_Open(mResolvedPath.get(), PR_RDONLY | PR_CREATE_FILE | PR_APPEND | PR_EXCL, attributes);
+        if (!file) return NS_ERROR_FILE_ALREADY_EXISTS;
+
+        PR_Close(file);
+        return NS_OK;
+    }
+
+    if (type == DIRECTORY_TYPE)
+    {
+        if (!CreateDirectoryA(mResolvedPath.get(), NULL))
+            return ConvertWinError(GetLastError());
+        else
+            return NS_OK;
+    }
+
+    return NS_ERROR_FILE_UNKNOWN_TYPE;
+}
+
+NS_IMETHODIMP
+nsLocalFile::AppendNative(const nsACString &node)
+{
+    // append this path, multiple components are not permitted
+    return AppendNativeInternal(PromiseFlatCString(node), PR_FALSE);
+}
+
+NS_IMETHODIMP
+nsLocalFile::AppendRelativeNativePath(const nsACString &node)
+{
+    // append this path, multiple components are permitted
+    return AppendNativeInternal(PromiseFlatCString(node), PR_TRUE);
+}
+
+nsresult
+nsLocalFile::AppendNativeInternal(const nsAFlatCString &node, PRBool multipleComponents)
+{
+    if (node.IsEmpty())
+        return NS_OK;
+
+    // check the relative path for validity
+    const unsigned char * nodePath = (const unsigned char *) node.get();
+    if (*nodePath == '\\'                                       // can't start with an '\'
+        || _mbschr(nodePath, '/')                               // can't contain /
+        || node.Equals(".."))                                   // can't be ..
+        return NS_ERROR_FILE_UNRECOGNIZED_PATH;
+
+    if (multipleComponents)
+    {
+        // can't contain .. as a path component. Ensure that the valid components 
+        // "foo..foo", "..foo", and "foo.." are not falsely detected, but the invalid
+        // paths "..\", "foo\..", "foo\..\foo", "..\foo", etc are.
+        unsigned char * doubleDot = _mbsstr(nodePath, (unsigned char *)"\\..");
+        while (doubleDot)
+        {
+            doubleDot += 3;
+            if (*doubleDot == '\0' || *doubleDot == '\\')
+                return NS_ERROR_FILE_UNRECOGNIZED_PATH;
+            doubleDot = _mbsstr(doubleDot, (unsigned char *)"\\..");
+        }
+        if (0 == _mbsncmp(nodePath, (unsigned char *)"..\\", 3))  // catches the remaining cases of prefixes 
+            return NS_ERROR_FILE_UNRECOGNIZED_PATH;
+    }
+    else if (_mbschr(nodePath, '\\'))   // single components can't contain '\'
+        return NS_ERROR_FILE_UNRECOGNIZED_PATH;
+
+    MakeDirty();
+    
+    mWorkingPath.Append(NS_LITERAL_CSTRING("\\") + node);
+    
+    return NS_OK;
+}
+
+NS_IMETHODIMP
+nsLocalFile::Normalize()
+{
+    // XXX See bug 187957 comment 18 for possible problems with this implementation.
+    
+    if (mWorkingPath.IsEmpty())
+        return NS_OK;
+
+    // work in unicode for ease
+    nsAutoString path;
+    NS_CopyNativeToUnicode(mWorkingPath, path);
+
+    // find the index of the root backslash for the path. Everything before 
+    // this is considered fully normalized and cannot be ascended beyond 
+    // using ".."  For a local drive this is the first slash (e.g. "c:\").
+    // For a UNC path it is the slash following the share name 
+    // (e.g. "\\server\share\").
+    PRInt32 rootIdx = 2;        // default to local drive
+    if (path.First() == '\\')   // if a share then calculate the rootIdx
+    {
+        rootIdx = path.FindChar('\\', 2);   // skip \\ in front of the server 
+        if (rootIdx == kNotFound)
+            return NS_OK;                   // already normalized
+        rootIdx = path.FindChar('\\', rootIdx+1);
+        if (rootIdx == kNotFound)
+            return NS_OK;                   // already normalized
+    }
+    else if (path.CharAt(rootIdx) != '\\')
+    {
+        // The path has been specified relative to the current working directory 
+        // for that drive. To normalize it, the current working directory for 
+        // that drive needs to be inserted before the supplied relative path
+        // which will provide an absolute path (and the rootIdx will still be 2).
+        char cwd[MAX_PATH];
+        char * pcwd = cwd;
+        int drive = toupper(path.First()) - 'A' + 1;
+        if (!_getdcwd(drive, pcwd, MAX_PATH))
+            pcwd = _getdcwd(drive, 0, 0);
+        if (!pcwd)
+            return NS_ERROR_OUT_OF_MEMORY;
+
+        nsAutoString currentDir;
+        NS_CopyNativeToUnicode(nsDependentCString(pcwd), currentDir);
+        if (pcwd != cwd)
+            free(pcwd);
+
+        if (currentDir.Last() == '\\')
+            path.Replace(0, 2, currentDir);
+        else
+            path.Replace(0, 2, currentDir + NS_LITERAL_STRING("\\"));
+    }
+    NS_POSTCONDITION(0 < rootIdx && rootIdx < (PRInt32)path.Length(), "rootIdx is invalid");
+    NS_POSTCONDITION(path.CharAt(rootIdx) == '\\', "rootIdx is invalid");
+
+    // if there is nothing following the root path then it is already normalized
+    if (rootIdx + 1 == (PRInt32)path.Length())
+        return NS_OK;
+
+    // assign the root
+    nsAutoString normal;
+    const PRUnichar * pathBuffer = path.get();  // simplify access to the buffer
+    normal.SetCapacity(path.Length()); // it won't ever grow longer
+    normal.Assign(pathBuffer, rootIdx);
+
+    // Normalize the path components. The actions taken are:
+    //
+    //  "\\"    condense to single backslash
+    //  "."     remove from path
+    //  ".."    up a directory
+    //  "..."   remove from path (any number of dots > 2)
+    //
+    // The last form is something that Windows 95 and 98 supported and 
+    // is a shortcut for changing up multiple directories. Windows XP
+    // and ilk ignore it in a path, as is done here.
+    PRInt32 len, begin, end = rootIdx;
+    while (end < (PRInt32)path.Length())
+    {
+        // find the current segment (text between the backslashes) to 
+        // be examined, this will set the following variables:
+        //  begin == index of first char in segment
+        //  end   == index 1 char after last char in segment
+        //  len   == length of segment 
+        begin = end + 1;
+        end = path.FindChar('\\', begin);
+        if (end == kNotFound)
+            end = path.Length();
+        len = end - begin;
+        
+        // ignore double backslashes
+        if (len == 0)
+            continue;
+        
+        // len != 0, and interesting paths always begin with a dot
+        if (pathBuffer[begin] == '.')
+        {
+            // ignore single dots
+            if (len == 1)
+                continue;   
+
+            // handle multiple dots
+            if (len >= 2 && pathBuffer[begin+1] == '.')
+            {
+                // back up a path component on double dot
+                if (len == 2)
+                {
+                    PRInt32 prev = normal.RFindChar('\\');
+                    if (prev >= rootIdx)
+                        normal.Truncate(prev);
+                    continue;
+                }
+
+                // length is > 2 and the first two characters are dots. 
+                // if the rest of the string is dots, then ignore it.
+                int idx = len - 1;
+                for (; idx >= 2; --idx) 
+                {
+                    if (pathBuffer[begin+idx] != '.')
+                        break;
+                }
+
+                // this is true if the loop above didn't break
+                // and all characters in this segment are dots.
+                if (idx < 2) 
+                    continue;
+            }
+        }
+
+        // add the current component to the path, including the preceding backslash
+        normal.Append(pathBuffer + begin - 1, len + 1);
+    }
+    
+    NS_CopyUnicodeToNative(normal, mWorkingPath);
+    MakeDirty();
+
+    return NS_OK;
+}
+
+NS_IMETHODIMP
+nsLocalFile::GetNativeLeafName(nsACString &aLeafName)
+{
+    aLeafName.Truncate();
+
+    const char* temp = mWorkingPath.get();
+    if(temp == nsnull)
+        return NS_ERROR_FILE_UNRECOGNIZED_PATH;
+
+    const char* leaf = (const char*) _mbsrchr((const unsigned char*) temp, '\\');
+
+    // if the working path is just a node without any lashes.
+    if (leaf == nsnull)
+        leaf = temp;
+    else
+        leaf++;
+
+    aLeafName.Assign(leaf);
+    return NS_OK;
+}
+
+NS_IMETHODIMP
+nsLocalFile::SetNativeLeafName(const nsACString &aLeafName)
+{
+    MakeDirty();
+
+    const unsigned char* temp = (const unsigned char*) mWorkingPath.get();
+    if(temp == nsnull)
+        return NS_ERROR_FILE_UNRECOGNIZED_PATH;
+
+    // cannot use nsCString::RFindChar() due to 0x5c problem
+    PRInt32 offset = (PRInt32) (_mbsrchr(temp, '\\') - temp);
+    if (offset)
+    {
+        mWorkingPath.Truncate(offset+1);
+    }
+    mWorkingPath.Append(aLeafName);
+
+    return NS_OK;
+}
+
+
+NS_IMETHODIMP
+nsLocalFile::GetNativePath(nsACString &_retval)
+{
+    _retval = mWorkingPath;
+    return NS_OK;
+}
+
+nsresult
+nsLocalFile::CopySingleFile(nsIFile *sourceFile, nsIFile *destParent, const nsACString &newName, 
+                            PRBool followSymlinks, PRBool move)
+{
+    nsresult rv;
+    nsCAutoString filePath;
+
+    // get the path that we are going to copy to.
+    // Since windows does not know how to auto
+    // resolve shortcuts, we must work with the
+    // target.
+    nsCAutoString destPath;
+    destParent->GetNativeTarget(destPath);
+
+    destPath.Append("\\");
+
+    if (newName.IsEmpty())
+    {
+        nsCAutoString aFileName;
+        sourceFile->GetNativeLeafName(aFileName);
+        destPath.Append(aFileName);
+    }
+    else
+    {
+        destPath.Append(newName);
+    }
+
+
+    if (followSymlinks)
+    {
+        rv = sourceFile->GetNativeTarget(filePath);
+        if (filePath.IsEmpty())
+            rv = sourceFile->GetNativePath(filePath);
+    }
+    else
+    {
+        rv = sourceFile->GetNativePath(filePath);
+    }
+
+    if (NS_FAILED(rv))
+        return rv;
+
+    int copyOK;
+
+    if (!move)
+        copyOK = CopyFile(filePath.get(), destPath.get(), PR_TRUE);
+    else
+    {
+        // What we have to do is check to see if the destPath exists.  If it
+        // does, we have to move it out of the say so that MoveFile will
+        // succeed.  However, we don't want to just remove it since MoveFile
+        // can fail leaving us without a file.
+
+        nsCAutoString backup;
+        PRFileInfo64 fileInfo64;
+        PRStatus status = PR_GetFileInfo64(destPath.get(), &fileInfo64);
+        if (status == PR_SUCCESS)
+        {
+
+            // the file exists.  Check to make sure it is not a directory,
+            // then move it out of the way.
+            if (fileInfo64.type == PR_FILE_FILE)
+            {
+                backup.Append(destPath);
+                backup.Append(".moztmp");
+
+                // remove any existing backup file that we may already have.
+                // maybe we should be doing some kind of unique naming here,
+                // but why bother.
+                remove(backup.get());
+
+                // move destination file to backup file
+                copyOK = MoveFile(destPath.get(), backup.get());
+                if (!copyOK)
+                {
+                    // I guess we can't do the backup copy, so return.
+                    rv = ConvertWinError(GetLastError());
+                    return rv;
+                }
+            }
+        }
+        // move source file to destination file
+        copyOK = MoveFile(filePath.get(), destPath.get());
+
+        if (!backup.IsEmpty())
+        {
+            if (copyOK)
+            {
+                // remove the backup copy.
+                remove(backup.get());
+            }
+            else
+            {
+                // restore backup
+                int backupOk = MoveFile(backup.get(), destPath.get());
+                NS_ASSERTION(backupOk, "move backup failed");
+            }
+        }
+    }
+    if (!copyOK)  // CopyFile and MoveFile returns non-zero if succeeds (backward if you ask me).
+        rv = ConvertWinError(GetLastError());
+
+    return rv;
+}
+
+
+nsresult
+nsLocalFile::CopyMove(nsIFile *aParentDir, const nsACString &newName, PRBool followSymlinks, PRBool move)
+{
+    nsCOMPtr<nsIFile> newParentDir = aParentDir;
+    // check to see if this exists, otherwise return an error.
+    // we will check this by resolving.  If the user wants us
+    // to follow links, then we are talking about the target,
+    // hence we can use the |followSymlinks| parameter.
+    nsresult rv  = ResolveAndStat();
+    if (NS_FAILED(rv))
+        return rv;
+
+    if (!newParentDir)
+    {
+        // no parent was specified.  We must rename.
+
+        if (newName.IsEmpty())
+            return NS_ERROR_INVALID_ARG;
+
+        rv = GetParent(getter_AddRefs(newParentDir));
+        if (NS_FAILED(rv))
+            return rv;
+    }
+
+    if (!newParentDir)
+        return NS_ERROR_FILE_DESTINATION_NOT_DIR;
+
+    // make sure it exists and is a directory.  Create it if not there.
+    PRBool exists;
+    newParentDir->Exists(&exists);
+    if (!exists)
+    {
+        rv = newParentDir->Create(DIRECTORY_TYPE, 0644);  // TODO, what permissions should we use
+        if (NS_FAILED(rv))
+            return rv;
+    }
+    else
+    {
+        PRBool isDir;
+        newParentDir->IsDirectory(&isDir);
+        if (isDir == PR_FALSE)
+        {
+            if (followSymlinks)
+            {
+                PRBool isLink;
+                newParentDir->IsSymlink(&isLink);
+                if (isLink)
+                {
+                    nsCAutoString target;
+                    newParentDir->GetNativeTarget(target);
+
+                    nsCOMPtr<nsILocalFile> realDest = new nsLocalFile();
+                    if (realDest == nsnull)
+                        return NS_ERROR_OUT_OF_MEMORY;
+
+                    rv = realDest->InitWithNativePath(target);
+
+                    if (NS_FAILED(rv))
+                        return rv;
+
+                    return CopyMove(realDest, newName, followSymlinks, move);
+                }
+            }
+            else
+            {
+                return NS_ERROR_FILE_DESTINATION_NOT_DIR;
+            }
+        }
+    }
+
+    // check to see if we are a directory, if so enumerate it.
+
+    PRBool isDir;
+    IsDirectory(&isDir);
+    PRBool isSymlink;
+    IsSymlink(&isSymlink);
+
+    if (!isDir || (isSymlink && !followSymlinks))
+    {
+        rv = CopySingleFile(this, newParentDir, newName, followSymlinks, move);
+        if (NS_FAILED(rv))
+            return rv;
+    }
+    else
+    {
+        // create a new target destination in the new parentDir;
+        nsCOMPtr<nsIFile> target;
+        rv = newParentDir->Clone(getter_AddRefs(target));
+
+        if (NS_FAILED(rv))
+            return rv;
+
+        nsCAutoString allocatedNewName;
+        if (newName.IsEmpty())
+        {
+            PRBool isLink;
+            IsSymlink(&isLink);
+            if (isLink)
+            {
+                nsCAutoString temp;
+                GetNativeTarget(temp);
+                const char* leaf = (const char*) _mbsrchr((const unsigned char*) temp.get(), '\\');
+                if (leaf[0] == '\\')
+                    leaf++;
+                allocatedNewName = leaf;
+            }
+            else
+            {
+                GetNativeLeafName(allocatedNewName);// this should be the leaf name of the
+            }
+        }
+        else
+        {
+            allocatedNewName = newName;
+        }
+
+        rv = target->AppendNative(allocatedNewName);
+        if (NS_FAILED(rv))
+            return rv;
+
+        allocatedNewName.Truncate();
+
+        // check if the destination directory already exists
+        target->Exists(&exists);
+        if (!exists)
+        {
+            // if the destination directory cannot be created, return an error
+            rv = target->Create(DIRECTORY_TYPE, 0644);  // TODO, what permissions should we use
+            if (NS_FAILED(rv))
+                return rv;
+        }
+        else
+        {
+            // check if the destination directory is writable and empty
+            PRBool isWritable;
+
+            target->IsWritable(&isWritable);
+            if (!isWritable)
+                return NS_ERROR_FILE_ACCESS_DENIED;
+
+            nsCOMPtr<nsISimpleEnumerator> targetIterator;
+            rv = target->GetDirectoryEntries(getter_AddRefs(targetIterator));
+
+            PRBool more;
+            targetIterator->HasMoreElements(&more);
+            // return error if target directory is not empty
+            if (more)
+                return NS_ERROR_FILE_DIR_NOT_EMPTY;
+        }
+
+        nsDirEnumerator dirEnum;
+
+        rv = dirEnum.Init(this);
+        if (NS_FAILED(rv)) {
+            NS_WARNING("dirEnum initalization failed");
+            return rv;
+        }
+
+        PRBool more;
+        while (NS_SUCCEEDED(dirEnum.HasMoreElements(&more)) && more)
+        {
+            nsCOMPtr<nsISupports> item;
+            nsCOMPtr<nsIFile> file;
+            dirEnum.GetNext(getter_AddRefs(item));
+            file = do_QueryInterface(item);
+            if (file)
+            {
+                PRBool isDir, isLink;
+
+                file->IsDirectory(&isDir);
+                file->IsSymlink(&isLink);
+
+                if (move)
+                {
+                    if (followSymlinks)
+                        return NS_ERROR_FAILURE;
+
+                    rv = file->MoveToNative(target, nsCString());
+                    NS_ENSURE_SUCCESS(rv,rv);
+                }
+                else
+                {
+                    if (followSymlinks)
+                        rv = file->CopyToFollowingLinksNative(target, nsCString());
+                    else
+                        rv = file->CopyToNative(target, nsCString());
+                    NS_ENSURE_SUCCESS(rv,rv);
+                }
+            }
+        }
+        // we've finished moving all the children of this directory
+        // in the new directory.  so now delete the directory
+        // note, we don't need to do a recursive delete.
+        // MoveTo() is recursive.  At this point,
+        // we've already moved the children of the current folder
+        // to the new location.  nothing should be left in the folder.
+        if (move)
+        {
+          rv = Remove(PR_FALSE /* recursive */);
+          NS_ENSURE_SUCCESS(rv,rv);
+        }
+    }
+
+
+    // If we moved, we want to adjust this.
+    if (move)
+    {
+        MakeDirty();
+
+        nsCAutoString newParentPath;
+        newParentDir->GetNativePath(newParentPath);
+
+        if (newParentPath.IsEmpty())
+            return NS_ERROR_FAILURE;
+
+        if (newName.IsEmpty())
+        {
+            nsCAutoString aFileName;
+            GetNativeLeafName(aFileName);
+
+            InitWithNativePath(newParentPath);
+            AppendNative(aFileName);
+        }
+        else
+        {
+            InitWithNativePath(newParentPath);
+            AppendNative(newName);
+        }
+    }
+
+    return NS_OK;
+}
+
+NS_IMETHODIMP
+nsLocalFile::CopyToNative(nsIFile *newParentDir, const nsACString &newName)
+{
+    return CopyMove(newParentDir, newName, PR_FALSE, PR_FALSE);
+}
+
+NS_IMETHODIMP
+nsLocalFile::CopyToFollowingLinksNative(nsIFile *newParentDir, const nsACString &newName)
+{
+    return CopyMove(newParentDir, newName, PR_TRUE, PR_FALSE);
+}
+
+NS_IMETHODIMP
+nsLocalFile::MoveToNative(nsIFile *newParentDir, const nsACString &newName)
+{
+    return CopyMove(newParentDir, newName, PR_FALSE, PR_TRUE);
+}
+
+NS_IMETHODIMP
+nsLocalFile::Load(PRLibrary * *_retval)
+{
+    PRBool isFile;
+    nsresult rv = IsFile(&isFile);
+
+    if (NS_FAILED(rv))
+        return rv;
+
+    if (! isFile)
+        return NS_ERROR_FILE_IS_DIRECTORY;
+
+    NS_TIMELINE_START_TIMER("PR_LoadLibrary");
+    *_retval =  PR_LoadLibrary(mResolvedPath.get());
+    NS_TIMELINE_STOP_TIMER("PR_LoadLibrary");
+    NS_TIMELINE_MARK_TIMER1("PR_LoadLibrary", mResolvedPath.get());
+
+    if (*_retval)
+        return NS_OK;
+
+    return NS_ERROR_NULL_POINTER;
+}
+
+NS_IMETHODIMP
+nsLocalFile::Remove(PRBool recursive)
+{
+    // NOTE:
+    //
+    // if the working path points to a shortcut, then we will only
+    // delete the shortcut itself.  even if the shortcut points to
+    // a directory, we will not recurse into that directory or 
+    // delete that directory itself.  likewise, if the shortcut
+    // points to a normal file, we will not delete the real file.
+    // this is done to be consistent with the other platforms that
+    // behave this way.  we do this even if the followLinks attribute
+    // is set to true.  this helps protect against misuse that could
+    // lead to security bugs (e.g., bug 210588).
+    //
+    // Since shortcut files are no longer permitted to be used as unix-like
+    // symlinks interspersed in the path (e.g. "c:/file.lnk/foo/bar.txt")
+    // this processing is a lot simpler. Even if the shortcut file is 
+    // pointing to a directory, only the mWorkingPath value is used and so
+    // only the shortcut file will be deleted.
+
+    PRBool isDir, isLink;
+    nsresult rv;
+    
+    isDir = PR_FALSE;
+    rv = IsSymlink(&isLink);
+    if (NS_FAILED(rv))
+        return rv;
+
+    // only check to see if we have a directory if it isn't a link
+    if (!isLink)
+    {
+        rv = IsDirectory(&isDir);
+        if (NS_FAILED(rv))
+            return rv;
+    }
+
+    if (isDir)
+    {
+        if (recursive)
+        {
+            nsDirEnumerator dirEnum;
+
+            rv = dirEnum.Init(this);
+            if (NS_FAILED(rv))
+                return rv;
+
+            PRBool more;
+            while (NS_SUCCEEDED(dirEnum.HasMoreElements(&more)) && more)
+            {
+                nsCOMPtr<nsISupports> item;
+                dirEnum.GetNext(getter_AddRefs(item));
+                nsCOMPtr<nsIFile> file = do_QueryInterface(item);
+                if (file)
+                    file->Remove(recursive);
+            }
+        }
+        rv = rmdir(mWorkingPath.get());
+    }
+    else
+    {
+        rv = remove(mWorkingPath.get());
+    }
+
+    // fixup error code if necessary...
+    if (rv == (nsresult)-1)
+        rv = NSRESULT_FOR_ERRNO();
+    
+    MakeDirty();
+    return rv;
+}
+
+NS_IMETHODIMP
+nsLocalFile::GetLastModifiedTime(PRInt64 *aLastModifiedTime)
+{
+    NS_ENSURE_ARG(aLastModifiedTime);
+ 
+    // get the modified time of the target as determined by mFollowSymlinks
+    // If PR_TRUE, then this will be for the target of the shortcut file, 
+    // otherwise it will be for the shortcut file itself (i.e. the same 
+    // results as GetLastModifiedTimeOfLink)
+
+    nsresult rv = ResolveAndStat();
+    if (NS_FAILED(rv))
+        return rv;
+
+    // microseconds -> milliseconds
+    PRInt64 usecPerMsec;
+    LL_I2L(usecPerMsec, PR_USEC_PER_MSEC);
+    LL_DIV(*aLastModifiedTime, mFileInfo64.modifyTime, usecPerMsec);
+    return NS_OK;
+}
+
+
+NS_IMETHODIMP
+nsLocalFile::GetLastModifiedTimeOfLink(PRInt64 *aLastModifiedTime)
+{
+    NS_ENSURE_ARG(aLastModifiedTime);
+ 
+    // The caller is assumed to have already called IsSymlink 
+    // and to have found that this file is a link. 
+
+    PRFileInfo64 info;
+    if (PR_GetFileInfo64(mWorkingPath.get(), &info) != PR_SUCCESS)
+        return NSRESULT_FOR_ERRNO();
+
+    // microseconds -> milliseconds
+    PRInt64 usecPerMsec;
+    LL_I2L(usecPerMsec, PR_USEC_PER_MSEC);
+    LL_DIV(*aLastModifiedTime, info.modifyTime, usecPerMsec);
+    return NS_OK;
+}
+
+
+NS_IMETHODIMP
+nsLocalFile::SetLastModifiedTime(PRInt64 aLastModifiedTime)
+{
+    nsresult rv = ResolveAndStat();
+    if (NS_FAILED(rv))
+        return rv;
+
+    // set the modified time of the target as determined by mFollowSymlinks
+    // If PR_TRUE, then this will be for the target of the shortcut file, 
+    // otherwise it will be for the shortcut file itself (i.e. the same 
+    // results as SetLastModifiedTimeOfLink)
+
+    rv = SetModDate(aLastModifiedTime, mResolvedPath.get());
+    if (NS_SUCCEEDED(rv))
+        MakeDirty();
+
+    return rv;
+}
+
+
+NS_IMETHODIMP
+nsLocalFile::SetLastModifiedTimeOfLink(PRInt64 aLastModifiedTime)
+{
+    // The caller is assumed to have already called IsSymlink 
+    // and to have found that this file is a link. 
+
+    nsresult rv = SetModDate(aLastModifiedTime, mWorkingPath.get());
+    if (NS_SUCCEEDED(rv))
+        MakeDirty();
+
+    return rv;
+}
+
+nsresult
+nsLocalFile::SetModDate(PRInt64 aLastModifiedTime, const char *filePath)
+{
+    HANDLE file = CreateFile(filePath,          // pointer to name of the file
+                             GENERIC_WRITE,     // access (write) mode
+                             0,                 // share mode
+                             NULL,              // pointer to security attributes
+                             OPEN_EXISTING,     // how to create
+                             0,                 // file attributes
+                             NULL);
+    if (file == INVALID_HANDLE_VALUE)
+    {
+        return ConvertWinError(GetLastError());
+    }
+
+    FILETIME lft, ft;
+    SYSTEMTIME st;
+    PRExplodedTime pret;
+
+    // PR_ExplodeTime expects usecs...
+    PR_ExplodeTime(aLastModifiedTime * PR_USEC_PER_MSEC, PR_LocalTimeParameters, &pret);
+    st.wYear            = pret.tm_year;
+    st.wMonth           = pret.tm_month + 1; // Convert start offset -- Win32: Jan=1; NSPR: Jan=0
+    st.wDayOfWeek       = pret.tm_wday;
+    st.wDay             = pret.tm_mday;
+    st.wHour            = pret.tm_hour;
+    st.wMinute          = pret.tm_min;
+    st.wSecond          = pret.tm_sec;
+    st.wMilliseconds    = pret.tm_usec/1000;
+
+    nsresult rv = NS_OK;
+    if (    0 != SystemTimeToFileTime(&st, &lft) 
+         || 0 != LocalFileTimeToFileTime(&lft, &ft) 
+         || 0 != SetFileTime(file, NULL, &ft, &ft) )
+    {
+        rv = ConvertWinError(GetLastError());
+    }
+
+    CloseHandle(file);
+    return rv;
+}
+
+NS_IMETHODIMP
+nsLocalFile::GetPermissions(PRUint32 *aPermissions)
+{
+    NS_ENSURE_ARG(aPermissions);
+
+    // get the permissions of the target as determined by mFollowSymlinks
+    // If PR_TRUE, then this will be for the target of the shortcut file, 
+    // otherwise it will be for the shortcut file itself (i.e. the same 
+    // results as GetPermissionsOfLink)
+    nsresult rv = ResolveAndStat();
+    if (NS_FAILED(rv))
+        return rv;
+
+    PRBool isWritable, isExecutable;
+    IsWritable(&isWritable);
+    IsExecutable(&isExecutable);
+
+    *aPermissions = PR_IRUSR|PR_IRGRP|PR_IROTH;         // all read
+    if (isWritable)
+        *aPermissions |= PR_IWUSR|PR_IWGRP|PR_IWOTH;    // all write
+    if (isExecutable)
+        *aPermissions |= PR_IXUSR|PR_IXGRP|PR_IXOTH;    // all execute
+
+    return NS_OK;
+}
+
+NS_IMETHODIMP
+nsLocalFile::GetPermissionsOfLink(PRUint32 *aPermissions)
+{
+    NS_ENSURE_ARG(aPermissions);
+
+    // The caller is assumed to have already called IsSymlink 
+    // and to have found that this file is a link. It is not 
+    // possible for a link file to be executable.
+
+    DWORD word = GetFileAttributes(mWorkingPath.get());
+    if (word == INVALID_FILE_ATTRIBUTES)
+        return NS_ERROR_FILE_INVALID_PATH;
+
+    PRBool isWritable = !(word & FILE_ATTRIBUTE_READONLY);
+    *aPermissions = PR_IRUSR|PR_IRGRP|PR_IROTH;         // all read
+    if (isWritable)
+        *aPermissions |= PR_IWUSR|PR_IWGRP|PR_IWOTH;    // all write
+
+    return NS_OK;
+}
+
+
+NS_IMETHODIMP
+nsLocalFile::SetPermissions(PRUint32 aPermissions)
+{
+    // set the permissions of the target as determined by mFollowSymlinks
+    // If PR_TRUE, then this will be for the target of the shortcut file, 
+    // otherwise it will be for the shortcut file itself (i.e. the same 
+    // results as SetPermissionsOfLink)
+    nsresult rv = ResolveAndStat();
+    if (NS_FAILED(rv))
+        return rv;
+
+    // windows only knows about the following permissions
+    int mode = 0;
+    if (aPermissions & (PR_IRUSR|PR_IRGRP|PR_IROTH))    // any read
+        mode |= _S_IREAD;
+    if (aPermissions & (PR_IWUSR|PR_IWGRP|PR_IWOTH))    // any write
+        mode |= _S_IWRITE;
+
+    if (chmod(mResolvedPath.get(), mode) == -1)
+        return NS_ERROR_FAILURE;
+
+    return NS_OK;
+}
+
+NS_IMETHODIMP
+nsLocalFile::SetPermissionsOfLink(PRUint32 aPermissions)
+{
+    // The caller is assumed to have already called IsSymlink 
+    // and to have found that this file is a link. 
+
+    // windows only knows about the following permissions
+    int mode = 0;
+    if (aPermissions & (PR_IRUSR|PR_IRGRP|PR_IROTH))    // any read
+        mode |= _S_IREAD;
+    if (aPermissions & (PR_IWUSR|PR_IWGRP|PR_IWOTH))    // any write
+        mode |= _S_IWRITE;
+
+    if (chmod(mWorkingPath.get(), mode) == -1)
+        return NS_ERROR_FAILURE;
+
+    return NS_OK;
+}
+
+
+NS_IMETHODIMP
+nsLocalFile::GetFileSize(PRInt64 *aFileSize)
+{
+    NS_ENSURE_ARG(aFileSize);
+
+    nsresult rv = ResolveAndStat();
+    if (NS_FAILED(rv))
+        return rv;
+
+    *aFileSize = mFileInfo64.size;
+    return NS_OK;
+}
+
+
+NS_IMETHODIMP
+nsLocalFile::GetFileSizeOfLink(PRInt64 *aFileSize)
+{
+    NS_ENSURE_ARG(aFileSize);
+
+    // The caller is assumed to have already called IsSymlink 
+    // and to have found that this file is a link. 
+
+    PRFileInfo64 info;
+    if (!PR_GetFileInfo64(mWorkingPath.get(), &info))
+        return NS_ERROR_FILE_INVALID_PATH;
+
+    *aFileSize = info.size;
+    return NS_OK;
+}
+
+NS_IMETHODIMP
+nsLocalFile::SetFileSize(PRInt64 aFileSize)
+{
+    nsresult rv = ResolveAndStat();
+    if (NS_FAILED(rv))
+        return rv;
+
+    HANDLE hFile = CreateFile(mResolvedPath.get(),      // pointer to name of the file
+                              GENERIC_WRITE,            // access (write) mode
+                              FILE_SHARE_READ,          // share mode
+                              NULL,                     // pointer to security attributes
+                              OPEN_EXISTING,            // how to create
+                              FILE_ATTRIBUTE_NORMAL,    // file attributes
+                              NULL);
+    if (hFile == INVALID_HANDLE_VALUE)
+    {
+        return ConvertWinError(GetLastError());
+    }
+
+    // seek the file pointer to the new, desired end of file
+    // and then truncate the file at that position
+    rv = NS_ERROR_FAILURE;
+    aFileSize = MyFileSeek64(hFile, aFileSize, FILE_BEGIN);
+    if (aFileSize != -1 && SetEndOfFile(hFile))
+    {
+        MakeDirty();
+        rv = NS_OK;
+    }
+
+    CloseHandle(hFile);
+    return rv;
+}
+
+typedef BOOL (WINAPI *fpGetDiskFreeSpaceExA)(LPCTSTR lpDirectoryName,
+                                             PULARGE_INTEGER lpFreeBytesAvailableToCaller,
+                                             PULARGE_INTEGER lpTotalNumberOfBytes,
+                                             PULARGE_INTEGER lpTotalNumberOfFreeBytes);
+
+NS_IMETHODIMP
+nsLocalFile::GetDiskSpaceAvailable(PRInt64 *aDiskSpaceAvailable)
+{
+    NS_ENSURE_ARG(aDiskSpaceAvailable);
+
+    ResolveAndStat();
+
+    // Attempt to check disk space using the GetDiskFreeSpaceExA function. 
+    // --- FROM MSDN ---
+    // The GetDiskFreeSpaceEx function is available beginning with Windows 95 OEM Service 
+    // Release 2 (OSR2). To determine whether GetDiskFreeSpaceEx is available, call 
+    // GetModuleHandle to get the handle to Kernel32.dll. Then you can call GetProcAddress. 
+    // It is not necessary to call LoadLibrary on Kernel32.dll because it is already loaded 
+    // into every process address space.
+    fpGetDiskFreeSpaceExA pGetDiskFreeSpaceExA = (fpGetDiskFreeSpaceExA)
+        GetProcAddress(GetModuleHandle("kernel32.dll"), "GetDiskFreeSpaceExA");
+    if (pGetDiskFreeSpaceExA)
+    {
+        ULARGE_INTEGER liFreeBytesAvailableToCaller, liTotalNumberOfBytes;
+        if (pGetDiskFreeSpaceExA(mResolvedPath.get(), &liFreeBytesAvailableToCaller, 
+            &liTotalNumberOfBytes, NULL))
+        {
+            *aDiskSpaceAvailable = liFreeBytesAvailableToCaller.QuadPart;
+            return NS_OK;
+        }
+    }
+
+    // use the old method of getting available disk space
+    char aDrive[_MAX_DRIVE + 2];
+    _splitpath( mResolvedPath.get(), aDrive, NULL, NULL, NULL);
+    strcat(aDrive, "\\");
+
+    DWORD dwSecPerClus, dwBytesPerSec, dwFreeClus, dwTotalClus;
+    if (GetDiskFreeSpace(aDrive, &dwSecPerClus, &dwBytesPerSec, &dwFreeClus, &dwTotalClus))
+    {
+        __int64 bytes = dwFreeClus;
+        bytes *= dwSecPerClus;
+        bytes *= dwBytesPerSec;
+
+        *aDiskSpaceAvailable = bytes;
+        return NS_OK;
+    }
+
+    return NS_ERROR_FAILURE;
+}
+
+NS_IMETHODIMP
+nsLocalFile::GetParent(nsIFile * *aParent)
+{
+    NS_ENSURE_ARG_POINTER(aParent);
+
+    nsCAutoString parentPath(mWorkingPath);
+
+    // cannot use nsCString::RFindChar() due to 0x5c problem
+    PRInt32 offset = (PRInt32) (_mbsrchr((const unsigned char *) parentPath.get(), '\\')
+                     - (const unsigned char *) parentPath.get());
+    // adding this offset check that was removed in bug 241708 fixes mail
+    // directories that aren't relative to/underneath the profile dir.
+    // e.g., on a different drive. Before you remove them, please make
+    // sure local mail directories that aren't underneath the profile dir work.
+    if (offset < 0)
+      return NS_ERROR_FILE_UNRECOGNIZED_PATH;
+
+    if (offset == 1 && parentPath[0] == '\\') {
+        aParent = nsnull;
+        return NS_OK;
+    }
+    if (offset > 0)
+        parentPath.Truncate(offset);
+    else
+        parentPath.AssignLiteral("\\\\.");
+
+    nsCOMPtr<nsILocalFile> localFile;
+    nsresult rv = NS_NewNativeLocalFile(parentPath, mFollowSymlinks, getter_AddRefs(localFile));
+
+    if(NS_SUCCEEDED(rv) && localFile)
+    {
+        return CallQueryInterface(localFile, aParent);
+    }
+    return rv;
+}
+
+NS_IMETHODIMP
+nsLocalFile::Exists(PRBool *_retval)
+{
+    NS_ENSURE_ARG(_retval);
+    *_retval = PR_FALSE;
+
+    MakeDirty();
+    nsresult rv = ResolveAndStat();
+    *_retval = NS_SUCCEEDED(rv);
+
+    return NS_OK;
+}
+
+NS_IMETHODIMP
+nsLocalFile::IsWritable(PRBool *aIsWritable)
+{
+    //TODO: extend to support NTFS file permissions
+
+    // The read-only attribute on a FAT directory only means that it can't 
+    // be deleted. It is still possible to modify the contents of the directory.
+    nsresult rv = IsDirectory(aIsWritable);
+    if (NS_FAILED(rv))
+        return rv;
+    if (*aIsWritable)
+        return NS_OK;
+
+    // writable if the file doesn't have the readonly attribute
+    rv = HasFileAttribute(FILE_ATTRIBUTE_READONLY, aIsWritable);
+    if (NS_FAILED(rv))
+        return rv;
+    *aIsWritable = !*aIsWritable;
+
+    return NS_OK;
+}
+
+NS_IMETHODIMP
+nsLocalFile::IsReadable(PRBool *_retval)
+{
+    NS_ENSURE_ARG(_retval);
+    *_retval = PR_FALSE;
+
+    nsresult rv = ResolveAndStat();
+    if (NS_FAILED(rv))
+        return rv;
+
+    *_retval = PR_TRUE;
+    return NS_OK;
+}
+
+
+NS_IMETHODIMP
+nsLocalFile::IsExecutable(PRBool *_retval)
+{
+    NS_ENSURE_ARG(_retval);
+    *_retval = PR_FALSE;
+    
+    nsresult rv;
+
+    // only files can be executables
+    PRBool isFile;
+    rv = IsFile(&isFile);
+    if (NS_FAILED(rv))
+        return rv;
+    if (!isFile)
+        return NS_OK;
+
+    //TODO: shouldn't we be checking mFollowSymlinks here?
+    PRBool symLink;
+    rv = IsSymlink(&symLink);
+    if (NS_FAILED(rv))
+        return rv;
+
+    nsCAutoString path;
+    if (symLink)
+        GetNativeTarget(path);
+    else
+        GetNativePath(path);
+
+    // Get extension.
+    char * ext = (char *) _mbsrchr((unsigned char *)path.BeginWriting(), '.');
+    if ( ext ) {
+        // Convert extension to lower case.
+        for( unsigned char *p = (unsigned char *)ext; *p; p++ )
+            *p = _mbctolower( *p );
+
+        // Search for any of the set of executable extensions.
+        const char * const executableExts[] = {
+            ".ad",
+            ".adp",
+            ".asp",
+            ".bas",
+            ".bat",
+            ".chm",
+            ".cmd",
+            ".com",
+            ".cpl",
+            ".crt",
+            ".exe",
+            ".hlp",
+            ".hta",
+            ".inf",
+            ".ins",
+            ".isp",
+            ".js",
+            ".jse",
+            ".lnk",
+            ".mdb",
+            ".mde",
+            ".msc",
+            ".msi",
+            ".msp",
+            ".mst",
+            ".pcd",
+            ".pif",
+            ".reg",
+            ".scr",
+            ".sct",
+            ".shb",
+            ".shs",
+            ".url",
+            ".vb",
+            ".vbe",
+            ".vbs",
+            ".vsd",
+            ".vss",
+            ".vst",
+            ".vsw",
+            ".ws",
+            ".wsc",
+            ".wsf",
+            ".wsh",
+            0 };
+        for ( int i = 0; executableExts[i]; i++ ) {
+            if ( ::strcmp( executableExts[i], ext ) == 0 ) {
+                // Found a match.  Set result and quit.
+                *_retval = PR_TRUE;
+                break;
+            }
+        }
+    }
+
+    return NS_OK;
+}
+
+
+NS_IMETHODIMP
+nsLocalFile::IsDirectory(PRBool *_retval)
+{
+    NS_ENSURE_ARG(_retval);
+
+    nsresult rv = ResolveAndStat();
+    if (NS_FAILED(rv))
+        return rv;
+
+    *_retval = (mFileInfo64.type == PR_FILE_DIRECTORY); 
+    return NS_OK;
+}
+
+NS_IMETHODIMP
+nsLocalFile::IsFile(PRBool *_retval)
+{
+    NS_ENSURE_ARG(_retval);
+
+    nsresult rv = ResolveAndStat();
+    if (NS_FAILED(rv))
+        return rv;
+
+    *_retval = (mFileInfo64.type == PR_FILE_FILE); 
+    return NS_OK;
+}
+
+NS_IMETHODIMP
+nsLocalFile::IsHidden(PRBool *_retval)
+{
+    return HasFileAttribute(FILE_ATTRIBUTE_HIDDEN, _retval);
+}
+
+nsresult
+nsLocalFile::HasFileAttribute(DWORD fileAttrib, PRBool *_retval)
+{
+    NS_ENSURE_ARG(_retval);
+
+    nsresult rv = ResolveAndStat();
+    if (NS_FAILED(rv))
+        return rv;
+
+    // get the file attributes for the correct item depending on following symlinks
+    const char *filePath = mFollowSymlinks ? mResolvedPath.get() : mWorkingPath.get();
+    DWORD word = GetFileAttributes(filePath);
+
+    *_retval = ((word & fileAttrib) != 0);
+    return NS_OK;
+}
+
+NS_IMETHODIMP
+nsLocalFile::IsSymlink(PRBool *_retval)
+{
+    NS_ENSURE_ARG(_retval);
+
+    // unless it is a valid shortcut path it's not a symlink
+    if (!IsShortcutPath(mWorkingPath.get()))
+    {
+        *_retval = PR_FALSE;
+        return NS_OK;
+    }
+
+    // we need to know if this is a file or directory
+    nsresult rv = ResolveAndStat();
+    if (NS_FAILED(rv))
+        return rv;
+
+    // it's only a shortcut if it is a file
+    *_retval = (mFileInfo64.type == PR_FILE_FILE);
+    return NS_OK;
+}
+
+NS_IMETHODIMP
+nsLocalFile::IsSpecial(PRBool *_retval)
+{
+    return HasFileAttribute(FILE_ATTRIBUTE_SYSTEM, _retval);
+}
+
+NS_IMETHODIMP
+nsLocalFile::Equals(nsIFile *inFile, PRBool *_retval)
+{
+    NS_ENSURE_ARG(inFile);
+    NS_ENSURE_ARG(_retval);
+
+    nsCAutoString inFilePath;
+    inFile->GetNativePath(inFilePath);
+
+    *_retval = inFilePath.Equals(mWorkingPath);
+    return NS_OK;
+}
+
+NS_IMETHODIMP
+nsLocalFile::Contains(nsIFile *inFile, PRBool recur, PRBool *_retval)
+{
+    *_retval = PR_FALSE;
+
+    nsCAutoString myFilePath;
+    if ( NS_FAILED(GetNativeTarget(myFilePath)))
+        GetNativePath(myFilePath);
+
+    PRInt32 myFilePathLen = myFilePath.Length();
+
+    nsCAutoString inFilePath;
+    if ( NS_FAILED(inFile->GetNativeTarget(inFilePath)))
+        inFile->GetNativePath(inFilePath);
+
+    if ( strnicmp( myFilePath.get(), inFilePath.get(), myFilePathLen) == 0)
+    {
+        // now make sure that the |inFile|'s path has a trailing
+        // separator.
+
+        if (inFilePath[myFilePathLen] == '\\')
+        {
+            *_retval = PR_TRUE;
+        }
+
+    }
+
+    return NS_OK;
+}
+
+
+
+NS_IMETHODIMP
+nsLocalFile::GetNativeTarget(nsACString &_retval)
+{
+    _retval.Truncate();
+#if STRICT_FAKE_SYMLINKS
+    PRBool symLink;
+
+    nsresult rv = IsSymlink(&symLink);
+    if (NS_FAILED(rv))
+        return rv;
+
+    if (!symLink)
+    {
+        return NS_ERROR_FILE_INVALID_PATH;
+    }
+#endif
+    ResolveAndStat();
+
+    _retval = mResolvedPath;
+    return NS_OK;
+}
+
+
+/* attribute PRBool followLinks; */
+NS_IMETHODIMP
+nsLocalFile::GetFollowLinks(PRBool *aFollowLinks)
+{
+    *aFollowLinks = mFollowSymlinks;
+    return NS_OK;
+}
+NS_IMETHODIMP
+nsLocalFile::SetFollowLinks(PRBool aFollowLinks)
+{
+    MakeDirty();
+    mFollowSymlinks = aFollowLinks;
+    return NS_OK;
+}
+
+
+NS_IMETHODIMP
+nsLocalFile::GetDirectoryEntries(nsISimpleEnumerator * *entries)
+{
+    nsresult rv;
+
+    *entries = nsnull;
+    if (mWorkingPath.EqualsLiteral("\\\\.")) {
+        nsDriveEnumerator *drives = new nsDriveEnumerator;
+        if (!drives)
+            return NS_ERROR_OUT_OF_MEMORY;
+        NS_ADDREF(drives);
+        rv = drives->Init();
+        if (NS_FAILED(rv)) {
+            NS_RELEASE(drives);
+            return rv;
+        }
+        *entries = drives;
+        return NS_OK;
+    }
+
+    PRBool isDir;
+    rv = IsDirectory(&isDir);
+    if (NS_FAILED(rv))
+        return rv;
+    if (!isDir)
+        return NS_ERROR_FILE_NOT_DIRECTORY;
+
+    nsDirEnumerator* dirEnum = new nsDirEnumerator();
+    if (dirEnum == nsnull)
+        return NS_ERROR_OUT_OF_MEMORY;
+    NS_ADDREF(dirEnum);
+    rv = dirEnum->Init(this);
+    if (NS_FAILED(rv))
+    {
+        NS_RELEASE(dirEnum);
+        return rv;
+    }
+
+    *entries = dirEnum;
+    return NS_OK;
+}
+
+NS_IMETHODIMP
+nsLocalFile::GetPersistentDescriptor(nsACString &aPersistentDescriptor)
+{
+    return GetNativePath(aPersistentDescriptor);
+}
+
+NS_IMETHODIMP
+nsLocalFile::SetPersistentDescriptor(const nsACString &aPersistentDescriptor)
+{
+   return InitWithNativePath(aPersistentDescriptor);
+}
+
+NS_IMETHODIMP
+nsLocalFile::Reveal()
+{
+    // make sure mResolvedPath is set
+    nsresult rv = ResolveAndStat();
+    if (NS_FAILED(rv) && rv != NS_ERROR_FILE_NOT_FOUND)
+        return rv;
+
+    // use the full path to explorer for security
+    nsCOMPtr<nsILocalFile> winDir;
+    rv = GetSpecialSystemDirectory(Win_WindowsDirectory, getter_AddRefs(winDir));
+    NS_ENSURE_SUCCESS(rv, rv);
+    nsCAutoString explorerPath;
+    rv = winDir->GetNativePath(explorerPath);  
+    NS_ENSURE_SUCCESS(rv, rv);
+    explorerPath.Append("\\explorer.exe");
+
+    // Always open a new window for files because Win2K doesn't appear to select
+    // the file if a window showing that folder was already open. If the resolved 
+    // path is a directory then instead of opening the parent and selecting it, 
+    // we open the directory itself.
+    nsCAutoString explorerParams;
+    if (mFileInfo64.type != PR_FILE_DIRECTORY) // valid because we ResolveAndStat above
+        explorerParams.Append("/n,/select,");
+    explorerParams.Append('\"');
+    explorerParams.Append(mResolvedPath);
+    explorerParams.Append('\"');
+
+    if (::ShellExecute(NULL, "open", explorerPath.get(), explorerParams.get(), 
+            NULL, SW_SHOWNORMAL) <= (HINSTANCE) 32)
+        return NS_ERROR_FAILURE;
+ 
+    return NS_OK;
+}
+
+
+NS_IMETHODIMP
+nsLocalFile::Launch()
+{
+    const nsCString &path = mWorkingPath;
+
+    // use the app registry name to launch a shell execute....
+    LONG r = (LONG) ::ShellExecute( NULL, NULL, path.get(), NULL, NULL, SW_SHOWNORMAL);
+
+    // if the file has no association, we launch windows' "what do you want to do" dialog
+    if (r == SE_ERR_NOASSOC) {
+        nsCAutoString shellArg;
+        shellArg.Assign(NS_LITERAL_CSTRING("shell32.dll,OpenAs_RunDLL ") + path);
+        r = (LONG) ::ShellExecute(NULL, NULL, "RUNDLL32.EXE",  shellArg.get(),
+                                  NULL, SW_SHOWNORMAL);
+    }
+    if (r < 32) {
+        switch (r) {
+          case 0:
+          case SE_ERR_OOM:
+            return NS_ERROR_OUT_OF_MEMORY;
+          case ERROR_FILE_NOT_FOUND:
+            return NS_ERROR_FILE_NOT_FOUND;
+          case ERROR_PATH_NOT_FOUND:
+            return NS_ERROR_FILE_UNRECOGNIZED_PATH;
+          case ERROR_BAD_FORMAT:
+            return NS_ERROR_FILE_CORRUPTED;
+          case SE_ERR_ACCESSDENIED:
+            return NS_ERROR_FILE_ACCESS_DENIED;
+          case SE_ERR_ASSOCINCOMPLETE:
+          case SE_ERR_NOASSOC:
+            return NS_ERROR_UNEXPECTED;
+          case SE_ERR_DDEBUSY:
+          case SE_ERR_DDEFAIL:
+          case SE_ERR_DDETIMEOUT:
+            return NS_ERROR_NOT_AVAILABLE;
+          case SE_ERR_DLLNOTFOUND:
+            return NS_ERROR_FAILURE;
+          case SE_ERR_SHARE:
+            return NS_ERROR_FILE_IS_LOCKED;
+          default:
+            return NS_ERROR_FILE_EXECUTION_FAILED;
+        }
+    }
+    return NS_OK;
+}
+
+nsresult
+NS_NewNativeLocalFile(const nsACString &path, PRBool followLinks, nsILocalFile* *result)
+{
+    nsLocalFile* file = new nsLocalFile();
+    if (file == nsnull)
+        return NS_ERROR_OUT_OF_MEMORY;
+    NS_ADDREF(file);
+
+    file->SetFollowLinks(followLinks);
+
+    if (!path.IsEmpty()) {
+        nsresult rv = file->InitWithNativePath(path);
+        if (NS_FAILED(rv)) {
+            NS_RELEASE(file);
+            return rv;
+        }
+    }
+
+    *result = file;
+    return NS_OK;
+}
+
+//-----------------------------------------------------------------------------
+// UCS2 interface
+//-----------------------------------------------------------------------------
+
+nsresult
+nsLocalFile::InitWithPath(const nsAString &filePath)
+{
+    nsCAutoString tmp;
+    nsresult rv = NS_CopyUnicodeToNative(filePath, tmp);
+    if (NS_SUCCEEDED(rv))
+        return InitWithNativePath(tmp);
+
+    return rv;
+}
+
+nsresult
+nsLocalFile::Append(const nsAString &node)
+{
+    nsCAutoString tmp;
+    nsresult rv = NS_CopyUnicodeToNative(node, tmp);
+    if (NS_SUCCEEDED(rv))
+        return AppendNative(tmp);
+
+    return rv;
+}
+
+nsresult
+nsLocalFile::AppendRelativePath(const nsAString &node)
+{
+    nsCAutoString tmp;
+    nsresult rv = NS_CopyUnicodeToNative(node, tmp);
+    if (NS_SUCCEEDED(rv))
+        return AppendRelativeNativePath(tmp);
+    return rv;
+}
+
+nsresult
+nsLocalFile::GetLeafName(nsAString &aLeafName)
+{
+    nsCAutoString tmp;
+    nsresult rv = GetNativeLeafName(tmp);
+    if (NS_SUCCEEDED(rv))
+        rv = NS_CopyNativeToUnicode(tmp, aLeafName);
+
+    return rv;
+}
+
+nsresult
+nsLocalFile::SetLeafName(const nsAString &aLeafName)
+{
+    nsCAutoString tmp;
+    nsresult rv = NS_CopyUnicodeToNative(aLeafName, tmp);
+    if (NS_SUCCEEDED(rv))
+        return SetNativeLeafName(tmp);
+
+    return rv;
+}
+
+nsresult
+nsLocalFile::GetPath(nsAString &_retval)
+{
+    return NS_CopyNativeToUnicode(mWorkingPath, _retval);
+}
+
+nsresult
+nsLocalFile::CopyTo(nsIFile *newParentDir, const nsAString &newName)
+{
+    if (newName.IsEmpty())
+        return CopyToNative(newParentDir, nsCString());
+
+    nsCAutoString tmp;
+    nsresult rv = NS_CopyUnicodeToNative(newName, tmp);
+    if (NS_SUCCEEDED(rv))
+        return CopyToNative(newParentDir, tmp);
+
+    return rv;
+}
+
+nsresult
+nsLocalFile::CopyToFollowingLinks(nsIFile *newParentDir, const nsAString &newName)
+{
+    if (newName.IsEmpty())
+        return CopyToFollowingLinksNative(newParentDir, nsCString());
+
+    nsCAutoString tmp;
+    nsresult rv = NS_CopyUnicodeToNative(newName, tmp);
+    if (NS_SUCCEEDED(rv))
+        return CopyToFollowingLinksNative(newParentDir, tmp);
+
+    return rv;
+}
+
+nsresult
+nsLocalFile::MoveTo(nsIFile *newParentDir, const nsAString &newName)
+{
+    if (newName.IsEmpty())
+        return MoveToNative(newParentDir, nsCString());
+
+    nsCAutoString tmp;
+    nsresult rv = NS_CopyUnicodeToNative(newName, tmp);
+    if (NS_SUCCEEDED(rv))
+        return MoveToNative(newParentDir, tmp);
+
+    return rv;
+}
+
+nsresult
+nsLocalFile::GetTarget(nsAString &_retval)
+{
+    nsCAutoString tmp;
+    nsresult rv = GetNativeTarget(tmp);
+    if (NS_SUCCEEDED(rv))
+        rv = NS_CopyNativeToUnicode(tmp, _retval);
+
+    return rv;
+}
+
+nsresult
+NS_NewLocalFile(const nsAString &path, PRBool followLinks, nsILocalFile* *result)
+{
+    nsCAutoString buf;
+    nsresult rv = NS_CopyUnicodeToNative(path, buf);
+    if (NS_FAILED(rv)) {
+        *result = nsnull;
+        return rv;
+    }
+    return NS_NewNativeLocalFile(buf, followLinks, result);
+}
+
+//-----------------------------------------------------------------------------
+// nsLocalFile <static members>
+//-----------------------------------------------------------------------------
+
+void
+nsLocalFile::GlobalInit()
+{
+    nsresult rv = NS_CreateShortcutResolver();
+    NS_ASSERTION(NS_SUCCEEDED(rv), "Shortcut resolver could not be created");
+}
+
+void
+nsLocalFile::GlobalShutdown()
+{
+    NS_DestroyShortcutResolver();
+}
+
+NS_IMPL_ISUPPORTS1(nsDriveEnumerator, nsISimpleEnumerator)
+
+nsDriveEnumerator::nsDriveEnumerator()
+ : mLetter(0)
+{
+}
+
+nsDriveEnumerator::~nsDriveEnumerator()
+{
+}
+
+nsresult nsDriveEnumerator::Init()
+{
+    /* If the length passed to GetLogicalDriveStrings is smaller
+     * than the length of the string it would return, it returns
+     * the length required for the string. */
+    DWORD length = GetLogicalDriveStrings(0, 0);
+    /* The string is null terminated */
+    mDrives.SetLength(length+1);
+    if (!GetLogicalDriveStrings(length, mDrives.BeginWriting()))
+        return NS_ERROR_FAILURE;
+    mLetter = mDrives.get();
+    return NS_OK;
+}
+
+NS_IMETHODIMP nsDriveEnumerator::HasMoreElements(PRBool *aHasMore)
+{
+    *aHasMore = *mLetter != '\0';
+    return NS_OK;
+}
+
+NS_IMETHODIMP nsDriveEnumerator::GetNext(nsISupports **aNext)
+{
+    /* GetLogicalDrives stored in mLetter is a concatenation
+     * of null terminated strings, followed by a null terminator. */
+    if (!*mLetter) {
+        *aNext = nsnull;
+        return NS_OK;
+    }
+    const char *drive = mLetter;
+    mLetter += strlen(drive) + 1;
+    nsILocalFile *file;
+    nsresult rv = 
+        NS_NewNativeLocalFile(nsDependentCString(drive), PR_FALSE, &file);
+
+    *aNext = file;
+    return rv;
+}