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// Copyright (c) 1998-2009 Nokia Corporation and/or its subsidiary(-ies).
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// All rights reserved.
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// This component and the accompanying materials are made available
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// under the terms of the License "Eclipse Public License v1.0"
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// which accompanies this distribution, and is available
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// at the URL "http://www.eclipse.org/legal/epl-v10.html".
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//
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// Initial Contributors:
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// Nokia Corporation - initial contribution.
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//
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// Contributors:
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//
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// Description:
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//
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#define _CRTIMP // we want to use the static runtime library
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#include <e32cmn.h>
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#include <e32cmn_private.h>
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#include <string.h>
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#include <emulator.h>
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#include <e32ldr.h>
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#include <e32uid.h>
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#pragma data_seg(".data2")
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#ifdef __VC32__
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#pragma bss_seg(".data2")
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#endif
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static TBool UnicodeHost;
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static Emulator::SInit Data;
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#pragma data_seg()
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#ifdef __VC32__
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#pragma bss_seg()
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#endif
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/**
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Initializes a module and prepares it to handle requests.
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@param aInit An object of the structure SInit.
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@see SInit.
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*/
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EXPORT_C void Emulator::Init(const Emulator::SInit& aInit)
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{
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UnicodeHost = (GetVersion() & 0x80000000) ? FALSE : TRUE;
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Data = aInit;
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if (Data.iCodePage == 0)
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Data.iCodePage = CP_ACP;
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}
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LOCAL_C DWORD UStringLength(LPCSTR lpMultiByteStr)
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//
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// returns length of unicode string generated - assumes null terminated string
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//
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{
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return MultiByteToWideChar(Data.iCodePage,0,lpMultiByteStr,-1,0,0);
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}
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LOCAL_C DWORD ConvertToUnicode(LPCSTR aNarrow,LPWSTR aUnicode,DWORD aLength,BOOL aCharsRequired)
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//
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// Converts narrow string to unicode string
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//
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{
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DWORD uniLength=UStringLength(aNarrow);
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if(uniLength>aLength || uniLength==0)
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return aCharsRequired ? uniLength : 0;
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uniLength=MultiByteToWideChar(Data.iCodePage,0,aNarrow,-1,aUnicode,aLength);
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// return number of characters excluding the null terminator
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return uniLength ? uniLength-1 : 0;
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}
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LOCAL_C DWORD ConvertToNarrow(LPCWSTR aUnicode,LPSTR aNarrow,DWORD aLength)
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//
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// Converts unicode string to narrow string
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//
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{
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return WideCharToMultiByte(Data.iCodePage,0,aUnicode,-1,aNarrow,aLength,"@",NULL);
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}
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template <TUint S>
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struct Buf8
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{
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public:
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Buf8(LPCWSTR aUnicode);
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inline operator LPCSTR() const
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{return iPtr;}
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private:
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const char* iPtr;
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char iBuf[S];
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};
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template <TUint S>
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Buf8<S>::Buf8(LPCWSTR aUnicode)
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{
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if (aUnicode)
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{
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iPtr = iBuf;
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ConvertToNarrow(aUnicode,iBuf,S);
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}
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else
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{
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iPtr = NULL;
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}
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}
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/**
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Acquires the global lock for host interaction.
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*/
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EXPORT_C void Emulator::Lock()
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{
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Data.iLock();
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}
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/**
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Releases the global lock for host interaction.
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This may overwrite the error code for this thread and that is not the behaviour expected,
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so save and restore it.
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*/
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EXPORT_C void Emulator::Unlock()
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{
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DWORD error=GetLastError();
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Data.iUnlock();
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SetLastError(error);
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}
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/**
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Takes the current thread out of the emulator scheduling model.
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*/
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EXPORT_C void Emulator::Escape()
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{
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Data.iEscape();
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}
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/**
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Returns the calling thread into the emulator scheduling model.
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This may overwrite the error code for this thread and that is not the behaviour expected,
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so save and restore it.
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*/
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EXPORT_C void Emulator::Reenter()
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{
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DWORD error=GetLastError();
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Data.iReenter();
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SetLastError(error);
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}
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/**
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Jumps to the NThread Win32 SEH exception handler.
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@param aException Describes an exception.
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@param aContext Describes the context.
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@return A handler to handle the exception occurred
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*/
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EXPORT_C DWORD Emulator::Win32SEHException(EXCEPTION_RECORD* aException, CONTEXT* aContext)
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{
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return Data.iException(aException, aContext);
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}
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/**
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This function wraps the Win32 CreateDirectory API (see http://msdn2.microsoft.com/en-us/library/aa363855.aspx).
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*/
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EXPORT_C BOOL Emulator::CreateDirectory(LPCWSTR lpPathName,LPSECURITY_ATTRIBUTES lpSecurityAttributes)
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{
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__LOCK_HOST;
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if (UnicodeHost)
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return ::CreateDirectoryW(lpPathName, lpSecurityAttributes);
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return ::CreateDirectoryA(Buf8<MAX_PATH>(lpPathName),lpSecurityAttributes);
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}
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#ifdef __VC32__
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//disable unreachable code warning in VC++
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#pragma warning (disable : 4702)
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#endif
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/**
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Recursively ensures that the full directory exists.
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@param aPathName Provides the path name.
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@return TRUE, if the function succeeds
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FALSE, if the function fails
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*/
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EXPORT_C BOOL Emulator::CreateAllDirectories(LPCSTR aPathName)
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{
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__LOCK_HOST;
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char path[MAX_PATH];
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strcpy(path, aPathName);
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char* p = path;
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for (;;)
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{
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p = strchr(p, '\\');
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char temp=0;
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if (p)
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{
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temp = *++p;
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*p = '\0';
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}
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DWORD att = ::GetFileAttributesA(path);
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if ((att == -1 || !(att&FILE_ATTRIBUTE_DIRECTORY)) && !::CreateDirectoryA(path, NULL))
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return EFalse;
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if (!p)
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return ETrue;
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*p = temp;
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}
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}
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#ifdef __VC32__
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//enable unreachable code warning in VC++
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#pragma warning (default : 4702)
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#endif
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#ifndef INVALID_FILE_ATTRIBUTES
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#define INVALID_FILE_ATTRIBUTES ((DWORD)-1)
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#endif
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/**
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This function wraps the Win32 CreateFile API (see http://msdn2.microsoft.com/en-us/library/aa363858.aspx).
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It also modifies file attributes depending on whether the file is hidden or not.
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*/
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EXPORT_C HANDLE Emulator::CreateFile(LPCWSTR lpFileName,DWORD dwDesiredAccess,DWORD dwShareMode,
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LPSECURITY_ATTRIBUTES lpSecurityAttributes,DWORD dwCreationDistribution,
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DWORD dwFlagsAndAttributes,HANDLE hTemplateFile)
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{
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__LOCK_HOST;
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HANDLE h;
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BOOL hidden = 0;
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DWORD att = INVALID_FILE_ATTRIBUTES;
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if(dwCreationDistribution==CREATE_ALWAYS)
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{
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att = ::GetFileAttributes(lpFileName);
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if(att!=INVALID_FILE_ATTRIBUTES && (att&FILE_ATTRIBUTE_HIDDEN))
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{
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hidden = ::SetFileAttributes(lpFileName, (att&~FILE_ATTRIBUTE_HIDDEN));
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}
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}
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if (UnicodeHost)
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h = ::CreateFileW(lpFileName,dwDesiredAccess,dwShareMode,lpSecurityAttributes,dwCreationDistribution,
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dwFlagsAndAttributes,hTemplateFile);
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else
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h = ::CreateFileA(Buf8<MAX_PATH>(lpFileName),dwDesiredAccess,dwShareMode,lpSecurityAttributes,dwCreationDistribution,
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dwFlagsAndAttributes,hTemplateFile);
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if(hidden && h!=INVALID_HANDLE_VALUE)
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{
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::SetFileAttributes(lpFileName, att);
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}
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return h;
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}
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/**
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This function wraps the Win32 DeleteFile API (see http://msdn2.microsoft.com/en-us/library/aa363915.aspx).
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*/
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EXPORT_C BOOL Emulator::DeleteFile(LPCWSTR lpFileName)
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{
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__LOCK_HOST;
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if (UnicodeHost)
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return ::DeleteFileW(lpFileName);
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return ::DeleteFileA(Buf8<MAX_PATH>(lpFileName));
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}
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LOCAL_C TBool MapFindFileData(LPWIN32_FIND_DATAW lpFindFileData, LPWIN32_FIND_DATAA lpFindNarrow)
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{
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lpFindFileData->dwFileAttributes=lpFindNarrow->dwFileAttributes;
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lpFindFileData->ftCreationTime=lpFindNarrow->ftCreationTime;
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lpFindFileData->ftLastAccessTime=lpFindNarrow->ftLastAccessTime;
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lpFindFileData->ftLastWriteTime=lpFindNarrow->ftLastWriteTime;
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lpFindFileData->nFileSizeHigh=lpFindNarrow->nFileSizeHigh;
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lpFindFileData->nFileSizeLow=lpFindNarrow->nFileSizeLow;
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if(!MultiByteToWideChar(Data.iCodePage,0,lpFindNarrow->cFileName,-1,lpFindFileData->cFileName,MAX_PATH))
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return FALSE;
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if(lpFindNarrow->cAlternateFileName!=NULL)
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{
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// magic number 14 comes from MS documentation
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if(!MultiByteToWideChar(Data.iCodePage,0,lpFindNarrow->cAlternateFileName,-1,lpFindFileData->cAlternateFileName,14))
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return FALSE;
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}
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return TRUE;
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}
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/**
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This function wraps the Win32 FindFirstFile API (see http://msdn2.microsoft.com/en-us/library/aa364418.aspx).
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*/
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EXPORT_C HANDLE Emulator::FindFirstFile(LPCWSTR lpFileName,LPWIN32_FIND_DATAW lpFindFileData)
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{
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__LOCK_HOST;
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if (UnicodeHost)
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return ::FindFirstFileW(lpFileName, lpFindFileData);
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WIN32_FIND_DATAA lpFindNarrow;
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HANDLE h=::FindFirstFileA(Buf8<MAX_PATH>(lpFileName),&lpFindNarrow);
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if(h==INVALID_HANDLE_VALUE)
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return h;
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if (!MapFindFileData(lpFindFileData, &lpFindNarrow))
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{
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FindClose(h);
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return INVALID_HANDLE_VALUE;
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}
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return h;
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}
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/**
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This function wraps the Win32 FindNextFile API (see http://msdn2.microsoft.com/en-us/library/aa364428.aspx).
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*/
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EXPORT_C BOOL Emulator::FindNextFile(HANDLE hFindFile,LPWIN32_FIND_DATAW lpFindFileData)
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{
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__LOCK_HOST;
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if (UnicodeHost)
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return ::FindNextFileW(hFindFile, lpFindFileData);
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WIN32_FIND_DATAA lpFindNarrow;
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if(!::FindNextFileA(hFindFile,&lpFindNarrow))
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return FALSE;
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return MapFindFileData(lpFindFileData, &lpFindNarrow);
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}
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/**
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This function wraps the Win32 GetDiskFreeSpace API (see http://msdn2.microsoft.com/en-us/library/aa364935.aspx).
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*/
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EXPORT_C BOOL Emulator::GetDiskFreeSpace(LPCWSTR lpRootPathName,LPDWORD lpSectorsPerCluster,\
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LPDWORD lpBytesPerSector,LPDWORD lpNumberOfFreeClusters,\
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LPDWORD lpTotalNumberOfClusters)
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{
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__LOCK_HOST;
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if (UnicodeHost)
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return ::GetDiskFreeSpaceW(lpRootPathName,lpSectorsPerCluster,lpBytesPerSector,lpNumberOfFreeClusters,lpTotalNumberOfClusters);
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return ::GetDiskFreeSpaceA(Buf8<MAX_PATH>(lpRootPathName),lpSectorsPerCluster,lpBytesPerSector,lpNumberOfFreeClusters,lpTotalNumberOfClusters);
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}
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/**
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This function wraps the Win32 GetFileAttributes API (see http://msdn2.microsoft.com/en-us/library/aa364944.aspx).
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*/
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EXPORT_C DWORD Emulator::GetFileAttributes(LPCWSTR lpFileName)
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{
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__LOCK_HOST;
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if (UnicodeHost)
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return ::GetFileAttributesW(lpFileName);
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return ::GetFileAttributesA(Buf8<MAX_PATH>(lpFileName));
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}
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/**
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This function wraps the Win32 GetModuleHandle API (see http://msdn2.microsoft.com/en-us/library/ms683199.aspx).
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*/
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EXPORT_C HMODULE Emulator::GetModuleHandle(LPCWSTR lpModuleName)
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{
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__LOCK_HOST;
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if (UnicodeHost)
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return ::GetModuleHandleW(lpModuleName);
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return ::GetModuleHandleA(Buf8<MAX_PATH>(lpModuleName));
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}
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/**
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This function wraps the Win32 GetModuleFileName API (see http://msdn2.microsoft.com/en-us/library/ms683197.aspx).
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*/
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EXPORT_C DWORD Emulator::GetModuleFileName(HMODULE hModule, LPWSTR lpFilename)
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{
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__LOCK_HOST;
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if (UnicodeHost)
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return ::GetModuleFileNameW(hModule, lpFilename, MAX_PATH);
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char fn[MAX_PATH];
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DWORD r=::GetModuleFileNameA(hModule, fn, MAX_PATH);
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if (r>MAX_PATH||r==0)
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return 0;
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return ConvertToUnicode(fn, lpFilename, MAX_PATH, TRUE);
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}
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/**
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This function wraps the Win32 GetTempPath API (see http://msdn2.microsoft.com/en-us/library/Aa364992.aspx).
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*/
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EXPORT_C DWORD Emulator::GetTempPath(DWORD nBufferLength,LPWSTR lpBuff)
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{
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__LOCK_HOST;
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if (UnicodeHost)
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return ::GetTempPathW(nBufferLength,lpBuff);
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char path[MAX_PATH];
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DWORD r=::GetTempPathA(MAX_PATH,path);
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if(r>MAX_PATH||r==0)
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return 0;
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return ConvertToUnicode(path,lpBuff,nBufferLength,TRUE);
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}
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/**
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This function wraps the Win32 GetCurrentDirectory API (see http://msdn2.microsoft.com/en-us/library/aa364934.aspx).
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*/
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EXPORT_C DWORD Emulator::GetCurrentDirectory(DWORD nBufferLength,LPWSTR lpBuff)
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{
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__LOCK_HOST;
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if (UnicodeHost)
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return ::GetCurrentDirectoryW(nBufferLength,lpBuff);
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char path[MAX_PATH];
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DWORD r=::GetCurrentDirectoryA(MAX_PATH,path);
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if(r>MAX_PATH||r==0)
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|
430 |
return 0;
|
|
431 |
return ConvertToUnicode(path,lpBuff,nBufferLength,TRUE);
|
|
432 |
}
|
|
433 |
|
|
434 |
|
|
435 |
/**
|
|
436 |
This function wraps the Win32 GetVolumeInformation API (see http://msdn2.microsoft.com/en-us/library/aa364993.aspx).
|
|
437 |
*/
|
|
438 |
EXPORT_C BOOL Emulator::GetVolumeInformation(LPCWSTR lpRootPathName,LPWSTR lpVolumeNameBuffer,DWORD nVolumeNameSize,
|
|
439 |
LPDWORD lpVolumeSerialNumber,LPDWORD lpMaximumComponentLength,
|
|
440 |
LPDWORD lpFileSystemFlags,LPWSTR,DWORD)
|
|
441 |
{
|
|
442 |
__LOCK_HOST;
|
|
443 |
|
|
444 |
// lpfileSystemNameBuffer always NULL so no need to convert
|
|
445 |
if (UnicodeHost)
|
|
446 |
return ::GetVolumeInformationW(lpRootPathName,lpVolumeNameBuffer,nVolumeNameSize,lpVolumeSerialNumber,
|
|
447 |
lpMaximumComponentLength,lpFileSystemFlags,NULL,0);
|
|
448 |
|
|
449 |
char volName[MAX_PATH];
|
|
450 |
BOOL res=::GetVolumeInformationA(Buf8<MAX_PATH>(lpRootPathName),volName,MAX_PATH,lpVolumeSerialNumber,
|
|
451 |
lpMaximumComponentLength,lpFileSystemFlags,NULL,0);
|
|
452 |
|
|
453 |
if(res && lpVolumeNameBuffer)
|
|
454 |
ConvertToUnicode(volName,lpVolumeNameBuffer,nVolumeNameSize,FALSE);
|
|
455 |
return res;
|
|
456 |
}
|
|
457 |
|
|
458 |
|
|
459 |
/**
|
|
460 |
This function wraps the Win32 LoadLibrary API (see http://msdn2.microsoft.com/en-us/library/ms684175.aspx).
|
|
461 |
*/
|
|
462 |
EXPORT_C HMODULE Emulator::LoadLibrary(LPCWSTR lpLibFileName)
|
|
463 |
{
|
|
464 |
__LOCK_HOST;
|
|
465 |
|
|
466 |
if (UnicodeHost)
|
|
467 |
return ::LoadLibraryW(lpLibFileName);
|
|
468 |
|
|
469 |
return ::LoadLibraryA(Buf8<MAX_PATH>(lpLibFileName));
|
|
470 |
}
|
|
471 |
|
|
472 |
|
|
473 |
/**
|
|
474 |
This function wraps the Win32 FreeLibrary API (see http://msdn2.microsoft.com/en-us/library/ms683152.aspx).
|
|
475 |
*/
|
|
476 |
EXPORT_C BOOL Emulator::FreeLibrary(HMODULE hLibModule)
|
|
477 |
{
|
|
478 |
__LOCK_HOST;
|
|
479 |
return ::FreeLibrary(hLibModule);
|
|
480 |
}
|
|
481 |
|
|
482 |
|
|
483 |
|
|
484 |
/**
|
|
485 |
This function wraps the Win32 MoveFile API (see http://msdn2.microsoft.com/en-us/library/aa365239.aspx).
|
|
486 |
*/
|
|
487 |
EXPORT_C BOOL Emulator::MoveFile(LPCWSTR lpExistingFileName,LPCWSTR lpNewFileName)
|
|
488 |
{
|
|
489 |
__LOCK_HOST;
|
|
490 |
|
|
491 |
if (UnicodeHost)
|
|
492 |
return ::MoveFileW(lpExistingFileName,lpNewFileName);
|
|
493 |
|
|
494 |
return ::MoveFileA(Buf8<MAX_PATH>(lpExistingFileName),Buf8<MAX_PATH>(lpNewFileName));
|
|
495 |
}
|
|
496 |
|
|
497 |
|
|
498 |
/**
|
|
499 |
This function wraps the Win32 CopyFile API (see http://msdn2.microsoft.com/en-us/library/aa363851.aspx).
|
|
500 |
*/
|
|
501 |
EXPORT_C BOOL Emulator::CopyFile(LPCWSTR lpExistingFileName,LPCWSTR lpNewFileName,BOOL aFailIfExists)
|
|
502 |
{
|
|
503 |
__LOCK_HOST;
|
|
504 |
|
|
505 |
if (UnicodeHost)
|
|
506 |
return ::CopyFileW(lpExistingFileName,lpNewFileName,aFailIfExists);
|
|
507 |
|
|
508 |
return ::CopyFileA(Buf8<MAX_PATH>(lpExistingFileName),Buf8<MAX_PATH>(lpNewFileName),aFailIfExists);
|
|
509 |
}
|
|
510 |
|
|
511 |
|
|
512 |
/**
|
|
513 |
This function wraps the Win32 OutputDebugString API (see http://msdn2.microsoft.com/en-us/library/aa363362.aspx).
|
|
514 |
*/
|
|
515 |
EXPORT_C VOID Emulator::OutputDebugString(LPCWSTR lpOutputString)
|
|
516 |
{
|
|
517 |
if (UnicodeHost)
|
|
518 |
::OutputDebugStringW(lpOutputString);
|
|
519 |
else
|
|
520 |
::OutputDebugStringA(Buf8<1024>(lpOutputString));
|
|
521 |
}
|
|
522 |
|
|
523 |
|
|
524 |
|
|
525 |
/**
|
|
526 |
This function wraps the Win32 RemoveDirectory API (see http://msdn2.microsoft.com/en-us/library/aa365488.aspx).
|
|
527 |
*/
|
|
528 |
EXPORT_C BOOL Emulator::RemoveDirectory(LPCWSTR lpPathName)
|
|
529 |
{
|
|
530 |
__LOCK_HOST;
|
|
531 |
|
|
532 |
if (UnicodeHost)
|
|
533 |
return ::RemoveDirectoryW(lpPathName);
|
|
534 |
|
|
535 |
return ::RemoveDirectoryA(Buf8<MAX_PATH>(lpPathName));
|
|
536 |
}
|
|
537 |
|
|
538 |
|
|
539 |
/**
|
|
540 |
This function wraps the Win32 SetFileAttributes API (see http://msdn2.microsoft.com/en-us/library/aa365535.aspx).
|
|
541 |
*/
|
|
542 |
|
|
543 |
EXPORT_C BOOL Emulator::SetFileAttributes(LPCWSTR lpFileName,DWORD dwFileAttributes)
|
|
544 |
{
|
|
545 |
__LOCK_HOST;
|
|
546 |
|
|
547 |
if (UnicodeHost)
|
|
548 |
return ::SetFileAttributesW(lpFileName,dwFileAttributes);
|
|
549 |
|
|
550 |
return ::SetFileAttributesA(Buf8<MAX_PATH>(lpFileName),dwFileAttributes);
|
|
551 |
}
|
|
552 |
|
|
553 |
|
|
554 |
|
|
555 |
/**
|
|
556 |
This function wraps the Win32 SetVolumeLabel API (see http://msdn2.microsoft.com/en-us/library/aa365560.aspx).
|
|
557 |
*/
|
|
558 |
EXPORT_C BOOL Emulator::SetVolumeLabel(LPCWSTR lpRootPathName,LPCWSTR lpVolumeName)
|
|
559 |
{
|
|
560 |
__LOCK_HOST;
|
|
561 |
|
|
562 |
if (UnicodeHost)
|
|
563 |
return ::SetVolumeLabelW(lpRootPathName,lpVolumeName);
|
|
564 |
|
|
565 |
return ::SetVolumeLabelA(Buf8<MAX_PATH>(lpRootPathName),Buf8<MAX_PATH>(lpVolumeName));
|
|
566 |
}
|
|
567 |
|
|
568 |
|
|
569 |
/**
|
|
570 |
Maps an NT error to an Epoc32 error.
|
|
571 |
|
|
572 |
@return Last-error code of the calling thread.
|
|
573 |
*/
|
|
574 |
EXPORT_C TInt Emulator::LastError()
|
|
575 |
|
|
576 |
// For other error codes look at MSDN "Numerical List of Error Codes"
|
|
577 |
{
|
|
578 |
switch (GetLastError())
|
|
579 |
{
|
|
580 |
case ERROR_SUCCESS: return KErrNone;
|
|
581 |
case ERROR_INVALID_DRIVE: return KErrNotReady;
|
|
582 |
case ERROR_INVALID_NAME:
|
|
583 |
case ERROR_FILENAME_EXCED_RANGE:
|
|
584 |
case ERROR_OPEN_FAILED: return KErrBadName;
|
|
585 |
case ERROR_INVALID_HANDLE: return KErrBadHandle;
|
|
586 |
case ERROR_NOT_SUPPORTED:
|
|
587 |
case ERROR_INVALID_FUNCTION: return KErrNotSupported;
|
|
588 |
case ERROR_SHARING_VIOLATION:
|
|
589 |
case ERROR_ACCESS_DENIED:
|
|
590 |
case ERROR_WRITE_PROTECT: return KErrAccessDenied;
|
|
591 |
case ERROR_LOCK_VIOLATION: return KErrLocked;
|
|
592 |
case ERROR_FILE_NOT_FOUND:
|
|
593 |
case ERROR_MOD_NOT_FOUND: return KErrNotFound;
|
|
594 |
case ERROR_DIRECTORY:
|
|
595 |
case ERROR_BAD_PATHNAME:
|
|
596 |
case ERROR_PATH_NOT_FOUND: return KErrPathNotFound;
|
|
597 |
case ERROR_ALREADY_EXISTS:
|
|
598 |
case ERROR_FILE_EXISTS: return KErrAlreadyExists;
|
|
599 |
case ERROR_NOT_READY: return KErrNotReady;
|
|
600 |
case ERROR_UNRECOGNIZED_VOLUME:
|
|
601 |
case ERROR_NOT_DOS_DISK: return KErrUnknown;
|
|
602 |
case ERROR_UNRECOGNIZED_MEDIA:
|
|
603 |
case ERROR_BAD_EXE_FORMAT: return KErrCorrupt;
|
|
604 |
case ERROR_NO_MORE_FILES: return KErrEof;
|
|
605 |
case ERROR_DIR_NOT_EMPTY: return KErrInUse;
|
|
606 |
case ERROR_INVALID_USER_BUFFER:
|
|
607 |
case ERROR_NOT_ENOUGH_MEMORY:
|
|
608 |
case ERROR_INSUFFICIENT_BUFFER:
|
|
609 |
case ERROR_OUTOFMEMORY: return KErrNoMemory;
|
|
610 |
case ERROR_DISK_FULL: return KErrDiskFull;
|
|
611 |
case ERROR_INVALID_DATA:
|
|
612 |
case ERROR_INVALID_PARAMETER: return KErrArgument;
|
|
613 |
case ERROR_OPERATION_ABORTED: return KErrCancel;
|
|
614 |
|
|
615 |
default: return KErrGeneral;
|
|
616 |
}
|
|
617 |
}
|
|
618 |
|
|
619 |
/**
|
|
620 |
This function wraps the Win32 GetProcAddress API (see http://msdn2.microsoft.com/en-us/library/ms683212.aspx).
|
|
621 |
*/
|
|
622 |
FARPROC Emulator::GetProcAddress(HMODULE hModule, LPCSTR lpProcName)
|
|
623 |
{
|
|
624 |
__LOCK_HOST;
|
|
625 |
return ::GetProcAddress(hModule, lpProcName);
|
|
626 |
}
|
|
627 |
|
|
628 |
|
|
629 |
|
|
630 |
// image file support
|
|
631 |
|
|
632 |
// loaded modules
|
|
633 |
|
|
634 |
|
|
635 |
/**
|
|
636 |
Gets the header format of the file system.
|
|
637 |
|
|
638 |
@return Returns the header format of the file system.
|
|
639 |
*/
|
|
640 |
EXPORT_C const IMAGE_NT_HEADERS32* Emulator::TModule::NtHeader() const
|
|
641 |
{
|
|
642 |
if (!IsValid())
|
|
643 |
return 0;
|
|
644 |
const IMAGE_DOS_HEADER* dhead = (const IMAGE_DOS_HEADER*)Translate(0);
|
|
645 |
if ( IMAGE_DOS_SIGNATURE != dhead->e_magic )
|
|
646 |
return 0;
|
|
647 |
if (dhead->e_lfarlc < sizeof(IMAGE_DOS_HEADER))
|
|
648 |
return 0;
|
|
649 |
const IMAGE_NT_HEADERS32* ntHead = (const IMAGE_NT_HEADERS32*)Translate(dhead->e_lfanew);
|
|
650 |
if ( ntHead->Signature != IMAGE_NT_SIGNATURE )
|
|
651 |
return 0;
|
|
652 |
return ntHead;
|
|
653 |
}
|
|
654 |
|
|
655 |
|
|
656 |
/**
|
|
657 |
Constructor which sets the handles of loaded module to the specified module.
|
|
658 |
|
|
659 |
@param aModuleName Holds the name of the module to be loaded.
|
|
660 |
*/
|
|
661 |
EXPORT_C Emulator::TModule::TModule(LPCSTR aModuleName)
|
|
662 |
: iModule(GetModuleHandleA(aModuleName)), iBase(iModule)
|
|
663 |
{
|
|
664 |
if (!NtHeader())
|
|
665 |
{
|
|
666 |
iModule = 0;
|
|
667 |
iBase = 0;
|
|
668 |
}
|
|
669 |
}
|
|
670 |
|
|
671 |
|
|
672 |
/**
|
|
673 |
Gets the pointer of the section header if the header name matches with the buffer aSection[].
|
|
674 |
|
|
675 |
@param aSection[] A buffer of type BYTE.
|
|
676 |
|
|
677 |
@return Returns the pointer to section header of the file system.
|
|
678 |
*/
|
|
679 |
EXPORT_C const IMAGE_SECTION_HEADER* Emulator::TModule::SectionHeader(const BYTE aSection[]) const
|
|
680 |
{
|
|
681 |
const IMAGE_NT_HEADERS32* ntHead = NtHeader();
|
|
682 |
if (!ntHead)
|
|
683 |
return 0;
|
|
684 |
|
|
685 |
const IMAGE_SECTION_HEADER* imgHead = (const IMAGE_SECTION_HEADER*)((TUint8*)&ntHead->OptionalHeader + ntHead->FileHeader.SizeOfOptionalHeader);
|
|
686 |
const IMAGE_SECTION_HEADER* end = imgHead + ntHead->FileHeader.NumberOfSections;
|
|
687 |
for (; imgHead < end; ++imgHead)
|
|
688 |
{
|
|
689 |
if (memcmp(imgHead->Name, aSection, IMAGE_SIZEOF_SHORT_NAME)==0)
|
|
690 |
return imgHead;
|
|
691 |
}
|
|
692 |
return 0;
|
|
693 |
}
|
|
694 |
|
|
695 |
|
|
696 |
/**
|
|
697 |
Points to the first byte or first page of the loaded module or mapped file image.
|
|
698 |
|
|
699 |
@param aSection[] A buffer of type BYTE.
|
|
700 |
|
|
701 |
@return TAny Returns first byte of the loaded module or first page of the mapped file image.
|
|
702 |
*/
|
|
703 |
EXPORT_C const TAny* Emulator::TModule::Section(const BYTE aSection[]) const
|
|
704 |
{
|
|
705 |
const IMAGE_SECTION_HEADER* imgHead = SectionHeader(aSection);
|
|
706 |
if (imgHead)
|
|
707 |
return Translate(IsLoaded() ? imgHead->VirtualAddress : imgHead->PointerToRawData);
|
|
708 |
return 0;
|
|
709 |
}
|
|
710 |
|
|
711 |
|
|
712 |
/**
|
|
713 |
Go through the section headers looking for UID section.
|
|
714 |
|
|
715 |
@param aType Contains a UID type.
|
|
716 |
*/
|
|
717 |
EXPORT_C void Emulator::TModule::GetUids(TUidType& aType) const
|
|
718 |
{
|
|
719 |
const TEmulatorImageHeader* hdr = (const TEmulatorImageHeader*)Section(KWin32SectionName_Symbian);
|
|
720 |
if (hdr)
|
|
721 |
aType = *(const TUidType*)&hdr->iUids[0];
|
|
722 |
}
|
|
723 |
|
|
724 |
|
|
725 |
/**
|
|
726 |
Goes through section headers and gets the information of file system.
|
|
727 |
|
|
728 |
@param aInfo Contains the information of the file system.
|
|
729 |
*/
|
|
730 |
EXPORT_C void Emulator::TModule::GetInfo(TProcessCreateInfo& aInfo) const
|
|
731 |
{
|
|
732 |
aInfo.iExceptionDescriptor = 0;
|
|
733 |
const IMAGE_NT_HEADERS32* ntHead = NtHeader();
|
|
734 |
if (ntHead)
|
|
735 |
{
|
|
736 |
const TEmulatorImageHeader* hdr = (const TEmulatorImageHeader*)Section(KWin32SectionName_Symbian);
|
|
737 |
if (hdr)
|
|
738 |
{
|
|
739 |
aInfo.iUids = *(const TUidType*)&hdr->iUids[0];
|
|
740 |
TBool isExe = (hdr->iUids[0].iUid==KExecutableImageUidValue);
|
|
741 |
TBool data_section_present = (Section(KWin32SectionName_EpocData)!=NULL);
|
|
742 |
TBool data = hdr->iFlags & KEmulatorImageFlagAllowDllData;
|
|
743 |
if (data_section_present && isExe)
|
|
744 |
data = ETrue;
|
|
745 |
aInfo.iBssSize=data?1:0;
|
|
746 |
aInfo.iDataSize=0;
|
|
747 |
aInfo.iTotalDataSize=aInfo.iBssSize;
|
|
748 |
aInfo.iDepCount = 0;
|
|
749 |
aInfo.iHeapSizeMin = ntHead->OptionalHeader.SizeOfHeapCommit;
|
|
750 |
aInfo.iHeapSizeMax = ntHead->OptionalHeader.SizeOfHeapReserve;
|
|
751 |
aInfo.iStackSize = 0x1000;
|
|
752 |
aInfo.iPriority = hdr->iPriority;
|
|
753 |
aInfo.iHandle = NULL;
|
|
754 |
aInfo.iS = hdr->iS;
|
|
755 |
aInfo.iModuleVersion = hdr->iModuleVersion;
|
|
756 |
if (ntHead->FileHeader.Characteristics & IMAGE_FILE_DLL)
|
|
757 |
aInfo.iAttr |= ECodeSegAttHDll;
|
|
758 |
}
|
|
759 |
}
|
|
760 |
GetUids(aInfo.iUids);
|
|
761 |
}
|
|
762 |
|
|
763 |
|
|
764 |
/**
|
|
765 |
Finds the import section from the data directory. This relies on the module being loaded.
|
|
766 |
|
|
767 |
@return Returns the imported executable.
|
|
768 |
*/
|
|
769 |
EXPORT_C const IMAGE_IMPORT_DESCRIPTOR* Emulator::TModule::Imports() const
|
|
770 |
{
|
|
771 |
if (!IsLoaded())
|
|
772 |
return NULL;
|
|
773 |
const IMAGE_NT_HEADERS32* ntHead = NtHeader();
|
|
774 |
if (!ntHead)
|
|
775 |
return NULL;
|
|
776 |
DWORD va = ntHead->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_IMPORT].VirtualAddress;
|
|
777 |
if (!va)
|
|
778 |
return NULL;
|
|
779 |
return (const IMAGE_IMPORT_DESCRIPTOR*)Translate(va);
|
|
780 |
}
|
|
781 |
|
|
782 |
// modules in the file system
|
|
783 |
EXPORT_C TInt Emulator::RImageFile::Open(LPCTSTR aImageFile)
|
|
784 |
{
|
|
785 |
Buf8<MAX_PATH> nameBuf(aImageFile);
|
|
786 |
char *pName = strrchr(LPCSTR(nameBuf), '\\');
|
|
787 |
pName ? ++pName : pName = (char *)LPCSTR(nameBuf);
|
|
788 |
|
|
789 |
__LOCK_HOST;
|
|
790 |
iMapping = OpenFileMapping(FILE_MAP_READ, FALSE, (LPCTSTR)pName);
|
|
791 |
if (!iMapping)
|
|
792 |
{
|
|
793 |
if (pName == (char *)LPCSTR(nameBuf))
|
|
794 |
iModule = Emulator::GetModuleHandle(aImageFile);
|
|
795 |
if (iModule)
|
|
796 |
iBase = iModule;
|
|
797 |
else
|
|
798 |
{
|
|
799 |
// need to map the file instead
|
|
800 |
HANDLE file = Emulator::CreateFile(aImageFile, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, NULL);
|
|
801 |
if (file == INVALID_HANDLE_VALUE)
|
|
802 |
return LastError();
|
|
803 |
iMapping = CreateFileMappingA(file, NULL, PAGE_READONLY, 0, 0, pName);
|
|
804 |
CloseHandle(file);
|
|
805 |
}
|
|
806 |
}
|
|
807 |
if (!iModule)
|
|
808 |
{
|
|
809 |
if (!iMapping)
|
|
810 |
return LastError();
|
|
811 |
|
|
812 |
iBase = MapViewOfFile(iMapping, FILE_MAP_READ, 0, 0, 0);
|
|
813 |
|
|
814 |
if (!iBase)
|
|
815 |
{
|
|
816 |
CloseHandle(iMapping);
|
|
817 |
iMapping = 0;
|
|
818 |
return LastError();
|
|
819 |
}
|
|
820 |
}
|
|
821 |
|
|
822 |
if (!NtHeader())
|
|
823 |
{
|
|
824 |
Close();
|
|
825 |
return KErrNotSupported;
|
|
826 |
}
|
|
827 |
return KErrNone;
|
|
828 |
}
|
|
829 |
|
|
830 |
EXPORT_C void Emulator::RImageFile::Close()
|
|
831 |
{
|
|
832 |
if (iMapping)
|
|
833 |
{
|
|
834 |
UnmapViewOfFile(iBase);
|
|
835 |
CloseHandle(iMapping);
|
|
836 |
iMapping = 0;
|
|
837 |
}
|
|
838 |
iBase = 0;
|
|
839 |
iModule = 0;
|
|
840 |
}
|