windows-xp/Source/XPSP1/NT/printscan/print/spooler/wpnpinst/exe/wpnpinst.c

/*---------------------------------------------------------------------------*\
| MODULE: WPNPINST.CXX
|
|   This is the main module for the WPNPINST application.
|
|   Copyright (C) 1997 Microsoft Corporation
|   Copyright (C) 1997 Hewlett Packard
|
| history:
|   25-Jul-1997 <rbkunz> Created.
|
\*---------------------------------------------------------------------------*/

#include "pch.h"
#include <tchar.h>

#define strFree(pszStr) {if (pszStr) GlobalFree((HANDLE)pszStr);}

/*****************************************************************************\
* strAlloc
*
*   Allocates a string from the heap.  This pointer must be freed with
*   a call to strFree().
*
\*****************************************************************************/
LPTSTR strAlloc(
    LPCTSTR pszSrc)
{
    DWORD  cbSize;
    LPTSTR pszDst = NULL;


    cbSize = (pszSrc ? ((lstrlen(pszSrc) + 1) * sizeof(TCHAR)) : 0);

    if (cbSize) {

        if (pszDst = (LPTSTR)GlobalAlloc(GPTR, cbSize))
            CopyMemory(pszDst, pszSrc, cbSize);
    }

    return pszDst;
}

/*****************************************************************************\
* strAllocAndCat
*
*   Allocates a string from the heap and concattenates another onto it.
*   This pointer must be freed with a call to strFree().
*
\*****************************************************************************/
LPTSTR strAllocAndCat(
    LPCTSTR pszSrc1,
    LPCTSTR pszSrc2)
{
    DWORD  cbSize;
    LPTSTR pszDst = NULL;


    cbSize = (pszSrc1 && pszSrc2 ? ((lstrlen(pszSrc1) + lstrlen(pszSrc2) + 1) * sizeof(TCHAR)) : 0);

    if (cbSize) {

        if (pszDst = (LPTSTR)GlobalAlloc(GPTR, cbSize)) {
            CopyMemory(pszDst, pszSrc1, cbSize);
            lstrcat( pszDst, pszSrc2 );
        }
    }

    return pszDst;
}


/*****************************************************************************\
* strLoad
*
*   Get string from resource based upon the ID passed in.
*
\*****************************************************************************/
LPTSTR strLoad(
    UINT ids)
{
    TCHAR szStr[MAX_RESBUF];


    if (LoadString(g_hInstance, ids, szStr, sizeof(szStr) / sizeof (TCHAR)) == 0)
        szStr[0] = TEXT('\0');

    return strAlloc(szStr);
}


/*****************************************************************************\
* InitStrings
*
*
\*****************************************************************************/
BOOL InitStrings(VOID)
{
    g_szErrorFormat       = strLoad(IDS_ERR_FORMAT);
    g_szError             = strLoad(IDS_ERR_ERROR);
    g_szEGeneric          = strLoad(IDS_ERR_GENERIC);
    g_szEBadCAB           = strLoad(IDS_ERR_BADCAB);
    g_szEInvalidParameter = strLoad(IDS_ERR_INVPARM);
    g_szENoMemory         = strLoad(IDS_ERR_NOMEM);
    g_szEInvalidCABName   = strLoad(IDS_ERR_INVNAME);
    g_szENoDATFile        = strLoad(IDS_ERR_NODAT);
    g_szECABExtract       = strLoad(IDS_ERR_CABFAIL);
    g_szENoPrintUI        = strLoad(IDS_ERR_NOPRTUI);
    g_szENoPrintUIEntry   = strLoad(IDS_ERR_PRTUIENTRY);
    g_szEPrintUIEntryFail = strLoad(IDS_ERR_PRTUIFAIL);
    g_szENotSupported     = strLoad(IDS_ERR_NOSUPPORT);


    return (g_szErrorFormat       &&
            g_szError             &&
            g_szEGeneric          &&
            g_szEBadCAB           &&
            g_szEInvalidParameter &&
            g_szENoMemory         &&
            g_szEInvalidCABName   &&
            g_szENoDATFile        &&
            g_szECABExtract       &&
            g_szENoPrintUI        &&
            g_szENoPrintUIEntry   &&
            g_szEPrintUIEntryFail &&
            g_szENotSupported
           );
}


/*****************************************************************************\
* FreeeStrings
*
*
\*****************************************************************************/
VOID FreeStrings(VOID)
{
    strFree(g_szErrorFormat);
    strFree(g_szError);
    strFree(g_szEGeneric);
    strFree(g_szEBadCAB);
    strFree(g_szEInvalidParameter);
    strFree(g_szENoMemory);
    strFree(g_szEInvalidCABName);
    strFree(g_szENoDATFile);
    strFree(g_szECABExtract);
    strFree(g_szENoPrintUI);
    strFree(g_szENoPrintUIEntry);
    strFree(g_szEPrintUIEntryFail);
    strFree(g_szENotSupported);
}


/*****************************************************************************\
*
* Win32Open (Local Routine)
*
* Translate a C-Runtime _open() call into appropriate Win32 CreateFile()
*
* NOTE:       Doesn't fully implement C-Runtime _open()
*             capability but it currently supports all callbacks
*             that FDI will give us
*
* Leveraged from nt\private\inet\setup\iexpress\wextract\wextract.c
*
\*****************************************************************************/
HANDLE Win32Open( LPCTSTR pszFile, int oflag, int pmode )
{
    HANDLE  FileHandle;
    BOOL    fExists     = FALSE;
    DWORD   fAccess;
    DWORD   fCreate;

    // NOTE: No Append Mode Support
    if (oflag & _O_APPEND)
        return INVALID_HANDLE_VALUE;

    // Set Read-Write Access
    if ((oflag & _O_RDWR) || (oflag & _O_WRONLY))
        fAccess = GENERIC_WRITE;
    else
        fAccess = GENERIC_READ;

     // Set Create Flags
    if (oflag & _O_CREAT)  {
        if (oflag & _O_EXCL)
            fCreate = CREATE_NEW;
        else if (oflag & _O_TRUNC)
            fCreate = CREATE_ALWAYS;
        else
            fCreate = OPEN_ALWAYS;
    } else {
        if (oflag & _O_TRUNC)
            fCreate = TRUNCATE_EXISTING;
        else
            fCreate = OPEN_EXISTING;
    }

    FileHandle = CreateFile( pszFile, fAccess, FILE_SHARE_READ, NULL, fCreate,
                             FILE_ATTRIBUTE_NORMAL, NULL );

    // NOTE:  Doesn't create directories like C runtime.
    // We don't need this capability for this app though.
    // All our directories will already exist

    return FileHandle;
}

/******************************************************************************\
*
* openfunc (Local Routine)
*
* Opens a file.  Used by FDI interface.
*
* Leveraged from nt\private\inet\setup\iexpress\wextract\wextract.c
*
\******************************************************************************/
INT_PTR FAR DIAMONDAPI openfunc( CHAR FAR *pszFile, INT oflag, INT pmode ) {

    INT     rc;
    INT     i;

    // Find Available File Handle in Fake File Table
    for ( i = 0; i < FILETABLESIZE; i++ ) {
        if ( g_FileTable[i].bAvailable == TRUE ) {
            break;
        }
    }

    // Running out of file handles should never happen
    if ( i == FILETABLESIZE )  {
        rc = C_RUNTIME_IO_ERROR;
    }

#ifdef UNICODE

    {
        TCHAR uchFileName[_MAX_PATH] = {0};

        mbstowcs(uchFileName, pszFile, _MAX_PATH);

        g_FileTable[i].hFile = Win32Open(uchFileName, oflag, pmode );
    }

#else

    g_FileTable[i].hFile = Win32Open(pszFile, oflag, pmode );

#endif

    if ( g_FileTable[i].hFile != INVALID_HANDLE_VALUE )  {
        g_FileTable[i].bAvailable = FALSE;
        rc = i;
    } else {
        rc = C_RUNTIME_IO_ERROR;
    }
    return rc;
}

#ifdef UNICODE
/******************************************************************************\
*
* openfunc (Local Routine)
*
* Opens a file.  Used by FDINotify.
*
\******************************************************************************/
INT_PTR FAR DIAMONDAPI openfuncW( WCHAR FAR *pszFile, INT oflag, INT pmode ) {

    INT     rc;
    INT     i;

    // Find Available File Handle in Fake File Table
    for ( i = 0; i < FILETABLESIZE; i++ ) {
        if ( g_FileTable[i].bAvailable == TRUE ) {
            break;
        }
    }

    // Running out of file handles should never happen
    if ( i == FILETABLESIZE )  {
        rc = C_RUNTIME_IO_ERROR;
    }

    g_FileTable[i].hFile = Win32Open(pszFile, oflag, pmode );

    if ( g_FileTable[i].hFile != INVALID_HANDLE_VALUE )  {
        g_FileTable[i].bAvailable = FALSE;
        rc = i;
    } else {
        rc = C_RUNTIME_IO_ERROR;
    }
    return rc;
}
#endif

/******************************************************************************\
*
* closefunc (Local Routine)
*
* Closes a file.  Used by FDI interface.
*
* Leveraged from nt\private\inet\setup\iexpress\wextract\wextract.c
*
\******************************************************************************/
INT FAR DIAMONDAPI closefunc( INT_PTR hf ) {

    INT rc;

    if ( CloseHandle( g_FileTable[hf].hFile ) )  {
        rc = 0;
        g_FileTable[hf].bAvailable = TRUE;
    } else  {
        rc = C_RUNTIME_IO_ERROR;
    }

    return rc;
}

/******************************************************************************\
*
* readfunc (Local Routine)
*
* Reads a file.  Used by FDI interface.
*
\******************************************************************************/
UINT FAR DIAMONDAPI readfunc( INT_PTR hf, PVOID pv, UINT cb ) {

    INT     rc;
    INT     cbRead;

    if ( ! ReadFile( g_FileTable[hf].hFile, pv, cb, (DWORD *) &cb, NULL ) ) {
        rc = C_RUNTIME_IO_ERROR;
    } else  {
        rc = cb;
    }

    return rc;
}


/******************************************************************************\
*
* writefunc (Local Routine)
*
* Writes a file.  Used by FDI interface
*
\******************************************************************************/
UINT FAR DIAMONDAPI writefunc( INT_PTR hf, PVOID pv, UINT cb ) {

    INT rc;

    if ( ! WriteFile( g_FileTable[hf].hFile, pv, cb, (DWORD *) &cb, NULL ) )  {
        rc = C_RUNTIME_IO_ERROR;
    } else  {
        rc = cb;
    }

    return rc;
}

/******************************************************************************\
*
* seekfunc (Local Routine)
*
* Repositions the file pointer.  Used by FDI interface.
*
* Leveraged from nt\private\inet\setup\iexpress\wextract\wextract.c
*
\******************************************************************************/
LONG FAR DIAMONDAPI seekfunc( INT_PTR hf, LONG dist, INT seektype ) {

    LONG    rc;
    DWORD   dwResult;
    DWORD   W32seektype;

    switch (seektype) {
        case SEEK_SET:
            W32seektype = FILE_BEGIN;
            break;
        case SEEK_CUR:
            W32seektype = FILE_CURRENT;
            break;
        case SEEK_END:
            W32seektype = FILE_END;
            break;
    }

    dwResult = SetFilePointer(g_FileTable[hf].hFile, dist, NULL, W32seektype);

    if (dwResult == 0xFFFFFFFF) {
        rc = C_RUNTIME_SEEK_ERROR;
    }
    else
        rc = (LONG)dwResult;

    return rc;
}

/******************************************************************************\
*
* allocfunc (Local Routine)
*
* Allocates memory.  Used by FDI interface.
*
\******************************************************************************/
void HUGE * FAR DIAMONDAPI allocfunc(ULONG cb) {

    PVOID pv;

    pv = (PVOID) GlobalAlloc( GPTR, cb );
    return pv;
}

/******************************************************************************\
*
* freefunc (Local Routine)
*
* Frees memory.  Used by FDI interface.
*
\******************************************************************************/
void FAR DIAMONDAPI freefunc(void HUGE *pv) {

    GlobalFree( pv );
}

/******************************************************************************\
*
* AdjustFileTime (Local Routine)
*
* Sets file time.
*
* Leveraged from nt\private\inet\setup\iexpress\wextract\wextract.c
*
\******************************************************************************/
BOOL AdjustFileTime( INT_PTR hf, USHORT date, USHORT time )
{
    FILETIME    ft;
    FILETIME    ftUTC;

    if ( ! DosDateTimeToFileTime( date, time, &ft ) ) {
        return FALSE;
    }

    if ( ! LocalFileTimeToFileTime( &ft, &ftUTC ) ) {
        return FALSE;
    }

    if ( ! SetFileTime( g_FileTable[hf].hFile, &ftUTC, &ftUTC, &ftUTC ) ) {
        return FALSE;
    }

    return TRUE;
}


/******************************************************************************\
*
* Attr32FromAttrFAT (Local Routine)
*
* Translate FAT attributes to Win32 Attributes
*
* Leveraged from nt\private\inet\setup\iexpress\wextract\wextract.c
*
\******************************************************************************/
DWORD Attr32FromAttrFAT( WORD attrMSDOS )
{
    //** Quick out for normal file special case
    if (attrMSDOS == _A_NORMAL) {
        return FILE_ATTRIBUTE_NORMAL;
    }

    //** Otherwise, mask off read-only, hidden, system, and archive bits
    //   NOTE: These bits are in the same places in MS-DOS and Win32!

    return attrMSDOS & (_A_RDONLY | _A_HIDDEN | _A_SYSTEM | _A_ARCH);
}


/******************************************************************************\
*
* fdiNotify (Local Routine)
*
* Processes Notification messages from FDI interface.
*
* Leveraged from nt\private\inet\setup\iexpress\wextract\wextract.c
*
\******************************************************************************/
INT_PTR FAR DIAMONDAPI fdiNotify(FDINOTIFICATIONTYPE fdint, PFDINOTIFICATION pfdin) {

    INT_PTR     fh;                       // File Handle
    LPTSTR      lpszFile;                 // Current File
    PWPNPINFO   pInfo;                    // Pointer to a "Web-Point-N-Print" info structure
    INT_PTR     nReturn;
    DWORD       dwError;

    // The user-defined 'pv' is a pointer to our saved info
    pInfo = (PWPNPINFO)pfdin->pv;

    nReturn = 0;

    switch ( fdint )  {

        //*******************************************************************
        case fdintCABINET_INFO:
            nReturn = 0;
            break;

        //*******************************************************************
        case fdintCOPY_FILE:

            nReturn = C_RUNTIME_IO_ERROR;

            {

#ifdef UNICODE
                TCHAR uchFileName[_MAX_PATH] = {0};

                mbstowcs(uchFileName, pfdin->psz1, _MAX_PATH);

                if (NULL != (lpszFile = BuildFileName((LPCTSTR)pInfo->pTempDir, uchFileName))) {

                    fh = openfuncW( lpszFile, _O_BINARY | _O_TRUNC | _O_RDWR |
                                    _O_CREAT, _S_IREAD | _S_IWRITE );
#else
                if (NULL != (lpszFile = BuildFileName((LPCTSTR)pInfo->pTempDir, (LPCTSTR)pfdin->psz1))) {
                    fh = openfunc( lpszFile, _O_BINARY | _O_TRUNC | _O_RDWR |
                                   _O_CREAT, _S_IREAD | _S_IWRITE );
#endif
                    if (C_RUNTIME_IO_ERROR != fh) {

                        if (AddFileToList(pInfo, lpszFile)) {
                            nReturn = fh;
                        }
                        else {
                            closefunc(fh);
                        }
                    }

                    GlobalFree(lpszFile);
                }
            }
            break;

        //*******************************************************************
        case fdintCLOSE_FILE_INFO:

            nReturn = C_RUNTIME_IO_ERROR;
            if (AdjustFileTime( pfdin->hf, pfdin->date, pfdin->time ) ) {

                closefunc( pfdin->hf );

                {
#ifdef UNICODE
                    TCHAR uchFileName[_MAX_PATH] = {0};

                    mbstowcs(uchFileName, pfdin->psz1, _MAX_PATH);
                    if (NULL != (lpszFile = BuildFileName((LPCTSTR)pInfo->pTempDir, uchFileName))) {
#else
                    if (NULL != (lpszFile = BuildFileName((LPCTSTR)pInfo->pTempDir, (LPCTSTR)pfdin->psz1))) {
#endif
                        if (SetFileAttributes( lpszFile, Attr32FromAttrFAT( pfdin->attribs ) ) ) {

                            nReturn = TRUE;
                        }

                        GlobalFree(lpszFile);
                    }
                }
            }
            break;

        //*******************************************************************
        case fdintPARTIAL_FILE:
            nReturn = 0;
            break;

        //*******************************************************************
        case fdintNEXT_CABINET:
            nReturn = 0;
            break;

        //*******************************************************************
        case fdintENUMERATE:
            nReturn = 0;
            break;

        //*******************************************************************
        default:
            break;
    }

    return nReturn;
}

/*****************************************************************************\
* GetCurDir
*
* Returns string indicating current-directory.
*
\*****************************************************************************/
LPTSTR GetCurDir(VOID)
{
    DWORD  cbSize;
    LPTSTR lpszDir = NULL;


    cbSize = GetCurrentDirectory(0, NULL);

    if (cbSize && (lpszDir = (LPTSTR)GlobalAlloc(GPTR, (cbSize * sizeof(TCHAR)))))
        GetCurrentDirectory(cbSize, lpszDir);

    return lpszDir;
}


/*****************************************************************************\
* WCFromMB (Local Routine)
*
* This routine returns a buffer of wide-character representation of a
* ansi string.  The caller is responsible for freeing this pointer returned
* by this function.
*
\*****************************************************************************/
LPWSTR WCFromMB(
    LPCSTR lpszStr)
{
    DWORD  cbSize;
    DWORD  dwChars;
    LPWSTR lpwszBuf = NULL;

    cbSize = 0;

    dwChars = (DWORD)MultiByteToWideChar(CP_ACP,
                                        MB_PRECOMPOSED,
                                        lpszStr,
                                        -1,
                                        lpwszBuf,
                                        (int)(cbSize / sizeof(WCHAR)));

    cbSize = dwChars * sizeof(WCHAR);

    if (cbSize && (lpwszBuf = (LPWSTR)GlobalAlloc(GPTR, cbSize)))
        MultiByteToWideChar(CP_ACP,
                            MB_PRECOMPOSED,
                            lpszStr,
                            -1,
                            lpwszBuf,
                            (int)(cbSize / sizeof(WCHAR)));

    return lpwszBuf;
}


/*****************************************************************************\
* WCFromTC (Local Routine)
*
* This routine returns a buffer of wide-character representation of a
* TCHAR string.  The caller is responsible for freeing this pointer returned
* by this function.
*
\*****************************************************************************/
LPWSTR WCFromTC(
    LPCTSTR lpszStr)
{
    DWORD  cbSize;
    DWORD  dwChars;
    LPWSTR lpwszBuf = NULL;

    cbSize = 0;

#ifdef UNICODE

    return (LPWSTR) lpszStr;

#else

    return WCFromMB(lpszStr);

#endif

}

/******************************************************************************\
*
* BuildFileName (Local Routine)
*
* Concatenates a path and file to produce a full pathname.
*
\******************************************************************************/
LPTSTR BuildFileName(
    LPCTSTR lpszPath,
    LPCTSTR lpszName)
{
    BOOL bReturn = FALSE;
    LPTSTR lpszMessage = NULL;
    INT cch = 0;
    UINT_PTR Args[MAX_ARGS];

    // Calculate the size necessary to hold the full-path filename.
    //
    cch += (lpszPath ? lstrlen(lpszPath) : 0);
    cch += (lpszName ? lstrlen(lpszName) : 0);

    // Concatenate the path and file
    //
    if (lpszPath) {

        Args[0] = (UINT_PTR) lpszPath;
        Args[1] = (UINT_PTR) lpszName;
        Args[2] = 0;

        if (0 != (FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_STRING | FORMAT_MESSAGE_ARGUMENT_ARRAY,
                                g_szFNFmt,
                                0,
                                0,
                                (LPTSTR)&lpszMessage,
                                0,
                                (va_list*)Args ))) {
            bReturn = TRUE;
        }
    }

    return lpszMessage;
}

/******************************************************************************\
*
* GetDirectory (Local Routine)
*
* Returns the directory portion of a full pathname.
*
\******************************************************************************/
LPTSTR GetDirectory(LPTSTR lpszFile, LPDWORD lpdwReturn) {

    LPTSTR lpszSlash;
    LPTSTR lpszDir;

    lpszSlash = _tcsrchr(lpszFile, g_chBackslash);

    if (lpszSlash != NULL) {

        if (NULL != (lpszDir = (LPTSTR)GlobalAlloc(GPTR, (lpszSlash - lpszFile + 2) * sizeof(TCHAR)))) {

            lstrcpyn(lpszDir, lpszFile, (UINT32)((UINT_PTR)lpszSlash - (UINT_PTR)lpszFile) / sizeof(TCHAR) + 2);
            *lpdwReturn = ERR_NONE;
            return lpszDir;
        }
        else {
            *lpdwReturn = ERR_NO_MEMORY;
        }
    }
    else {
        *lpdwReturn = ERR_INVALID_PARAMETER;
    }

    return NULL;
}

/******************************************************************************\
*
* GetName (Local Routine)
*
* Returns the filename portion of a full pathname.
*
\******************************************************************************/
LPTSTR GetName(LPTSTR lpszFile, LPDWORD lpdwReturn) {

    LPTSTR lpszSlash;
    LPTSTR lpszName;
    int    nLength;

    lpszSlash = _tcsrchr(lpszFile, g_chBackslash);

    if (lpszSlash != NULL) {

        nLength = lstrlen(lpszSlash);

        if (NULL != (lpszName = (LPTSTR)GlobalAlloc(GPTR, (nLength * sizeof(TCHAR))))) {

            lstrcpyn(lpszName, ++lpszSlash, nLength);

            *lpdwReturn = ERR_NONE;
            return lpszName;
        }
        else {
            *lpdwReturn = ERR_NO_MEMORY;
        }
    }
    else {
        *lpdwReturn = ERR_INVALID_PARAMETER;
    }

    return NULL;
}


/******************************************************************************\
*
* CreateTempDirectory (Local Routine)
*
* Creates a unique temp directory to extract files into.
*
\******************************************************************************/
LPTSTR CreateTempDirectory() {

    LPTSTR pReturnDir = NULL;
    LPTSTR pTempDir;
    LPTSTR pCurrDir;
    LPTSTR pWinDir;
    DWORD  dwRequired = 0;

    // Save the current directory in pCurrDir
    //
    if (dwRequired = GetCurrentDirectory(0, NULL)) {

        if (pCurrDir = (LPTSTR)GlobalAlloc(GPTR, dwRequired * sizeof(TCHAR))) {

            if (GetCurrentDirectory(dwRequired, pCurrDir) <= dwRequired) {

                // We need to set the current directory to something reasonable (something
                // besides the desktop), because GetTempPath() will use the current directory
                // if no TEMP or TMP variable is set.  This will ensure that a user that saves the
                // downloaded .wpnp cab file on the desktop and later runs it will not get the cab
                // files extracted to the desktop.
                //
                if (dwRequired = GetWindowsDirectory(NULL, 0)) {

                    if (pWinDir = (LPTSTR)GlobalAlloc(GPTR, dwRequired * sizeof(TCHAR))) {

                        if (GetWindowsDirectory(pWinDir, dwRequired) <= dwRequired) {

                            if (SetCurrentDirectory(pWinDir)) {

                                // Get the temp path, so we can create a temp directory
                                // to extract the cabinet file into
                                //
                                if (dwRequired = GetTempPath(0, NULL)) {

                                    if (pTempDir = (LPTSTR)GlobalAlloc(GPTR, dwRequired * sizeof(TCHAR))) {

                                        if (GetTempPath(dwRequired, pTempDir) <= dwRequired) {

                                            // Now create a unique temp file name.
                                            //
                                            if (pReturnDir = (LPTSTR)GlobalAlloc(GPTR, MAX_PATH * sizeof(TCHAR))) {

                                                if (GetTempFileName(pTempDir, g_szTNFmt, 0, pReturnDir)) {

                                                    // But what we really needed was a directory, so delete the file (now that
                                                    // we know that we have a unique name) and create a directory with
                                                    // the same name as the file.
                                                    //
                                                    DeleteFile(pReturnDir);
                                                    if (!CreateDirectory(pReturnDir, NULL)) {
                                                        GlobalFree(pReturnDir);
                                                        pReturnDir = NULL;
                                                    }
                                                    // else We succeeded in creating the temp dir.
                                                    //
                                                }
                                                // else we can't create a temp directory...cleanup.
                                                //
                                                else {
                                                    GlobalFree(pReturnDir);
                                                    pReturnDir = NULL;
                                                }

                                            }
                                        }

                                        GlobalFree(pTempDir);
                                    }
                                }
                            }
                        }

                        GlobalFree(pWinDir);
                    }
                }

                // Restore saved current directory
                SetCurrentDirectory(pCurrDir);
            }

            GlobalFree(pCurrDir);
        }
    }

    return pReturnDir;
}



#if 0

// The following 4 functions #ifdef'ed out on 11/6/97 RK
// PrintUI will call SetupX Catalog Verification APIs
// We don't need to verify any more

/******************************************************************************\
*
* RemoveExecutableFiles (Local Routine)
*
* Deletes executable files in the file list.
*
\******************************************************************************/
BOOL RemoveExecutableFiles(PWPNPINFO pInfo) {

    PFILENODE pFileNode;

    pFileNode = pInfo->pFileList;
    while (pFileNode) {
        if (IsExecutableFile(pFileNode->pFileName)) {
            DeleteFile(pFileNode->pFileName);
        }
        pFileNode = pFileNode->pNextFile;
    }

    return TRUE;
}

/******************************************************************************\
*
* IsExecutableFile (Local Routine)
*
* Determines if a file is an executable module.
*
* NOTE:  Can we check the actual file rather than just the extension?
*
\******************************************************************************/
BOOL IsExecutableFile(LPTSTR pFile) {

    BOOL    bReturn = FALSE;
    LPTSTR  pTemp = NULL;


    if (NULL != (pTemp = _tcsrchr(pFile, g_chDot)) ) {
        if (!lstrcmpi(pTemp, g_szDotDLL) || !lstrcmpi(pTemp, g_szDotEXE)) {
            bReturn = TRUE;
        }
    }

    return bReturn;
}


/******************************************************************************\
*
* CheckFile (Local Routine)
*
* Does an Authenticode check on a file.
*
\******************************************************************************/
DWORD CheckFile(LPTSTR lpszFile, LPDWORD lpAuthError) {

    GUID                    gV2 = WINTRUST_ACTION_GENERIC_VERIFY_V2;
    WINTRUST_DATA           sWTD;
    WINTRUST_FILE_INFO      sWTFI;
    LPWSTR                  lpwszFileName;
    DWORD                   dwReturn;

    dwReturn = ERR_GENERIC;
    if (NULL != (lpwszFileName = WCFromTC(lpszFile))) {

        memset(&sWTD, 0x00, sizeof(WINTRUST_DATA));
        memset(&sWTFI, 0x00, sizeof(WINTRUST_FILE_INFO));

        sWTD.cbStruct       = sizeof(WINTRUST_DATA);
        sWTD.dwUIChoice     = WTD_UI_ALL;
        sWTD.dwUnionChoice  = WTD_CHOICE_FILE;
        sWTD.pFile          = &sWTFI;

        sWTFI.cbStruct      = sizeof(WINTRUST_FILE_INFO);
        sWTFI.hFile         = NULL;

        sWTFI.pcwszFilePath = lpwszFileName;

        *lpAuthError = WinVerifyTrust(NULL, &gV2, &sWTD);

        dwReturn = ERR_NONE;
        GlobalFree(lpwszFileName);
    }
    else {
        dwReturn = ERR_NO_MEMORY;
    }

    return dwReturn;
}

/******************************************************************************\
*
* VerifyFiles (Local Routine)
*
* Does Authenticode verification on all executable files in the filelist.
*
\******************************************************************************/
DWORD VerifyFiles(PWPNPINFO pInfo, LPDWORD lpAuthError) {

    DWORD dwReturn;
    BOOL bContinue;
    PFILENODE pFileNode;

    pFileNode = pInfo->pFileList;
    bContinue = TRUE;

    dwReturn     = ERR_NONE;
    *lpAuthError = ERROR_SUCCESS;

    while (bContinue && pFileNode) {

        if (IsExecutableFile(pFileNode->pFileName)) {

            bContinue = FALSE;
            dwReturn = CheckFile(pFileNode->pFileName, lpAuthError);

            if (*lpAuthError == ERROR_SUCCESS) {
                bContinue = TRUE;
            }
            else {
                if (*lpAuthError == TRUST_E_SUBJECT_NOT_TRUSTED) {

                    // The user didn't accept the signed/unsigned files
                    // Delete the executable files here, so that the print wizard
                    // will prompt the user for the files instead of using the downloaded files.

                    RemoveExecutableFiles(pInfo);
                    *lpAuthError = ERROR_SUCCESS;
                }
                else {
                    dwReturn = ERR_AUTHENTICODE;
                }
            }
        }
        pFileNode = pFileNode->pNextFile;
    }

    return dwReturn;
}

#endif

/******************************************************************************\
*
* GetCABName (Local Routine)
*
* Parses the CAB name from the command line.
*
\******************************************************************************/
PTSTR GetCABName(PTSTR pCmdLine, LPDWORD lpdwReturn) {

    PTSTR pEnd = 0;
    PTSTR pPtr;
    PTSTR pName;

    pPtr = pCmdLine;

    if (pPtr) {

        if (*pPtr == g_chDoubleQuote) {
            pPtr++;
            pEnd = _tcschr(pPtr, g_chDoubleQuote);
            if (pEnd)
                *pEnd = 0;
        }

        // If we haven't found an End-Quote, treat it as the end of the string.
        if (pEnd == NULL)
            pEnd = pPtr + lstrlen(pPtr);


        if (pName = (PTSTR)GlobalAlloc(GPTR, (pEnd - pPtr + 1) * sizeof(TCHAR))) {
            lstrcpyn(pName, pPtr, (UINT32) (pEnd - pPtr + 1));
            *lpdwReturn = ERR_NONE;
        }
        else {
            *lpdwReturn = ERR_NO_MEMORY;
        }

        return pName;
    }
    else {
        *lpdwReturn = ERR_INVALID_PARAMETER;
    }

    return NULL;
}

/******************************************************************************\
*
* AddFileToList (Local Routine)
*
* Adds a file to the list of extracted files.
*
\******************************************************************************/
BOOL AddFileToList(PWPNPINFO pInfo, PTSTR lpszFile) {

    PFILENODE       pInsertHere;
    BOOL            bReturn;

    bReturn = FALSE;

    if (NULL == (pInfo->pFileList)) {

        if (NULL != (pInfo->pFileList = (PFILENODE)GlobalAlloc(GPTR, sizeof(FILENODE)))) {

            pInsertHere = pInfo->pFileList;
            pInsertHere->pNextFile = NULL;
            bReturn = TRUE;
        }
    }
    else {
        if (NULL != (pInsertHere = (PFILENODE)GlobalAlloc(GPTR, sizeof(FILENODE)))) {

            pInsertHere->pNextFile = pInfo->pFileList;
            pInfo->pFileList = pInsertHere;
            bReturn = TRUE;
        }
    }

    if (bReturn && (NULL != (pInsertHere->pFileName = (LPTSTR)GlobalAlloc(GPTR, (lstrlen(lpszFile) + 1) *sizeof(TCHAR))) ) ) {
        lstrcpyn(pInsertHere->pFileName, lpszFile, lstrlen(lpszFile) + 1);
        bReturn = TRUE;
    }
    else {
        bReturn = FALSE;
    }

    return bReturn;
}

/******************************************************************************\
*
* FreeFileList (Local Routine)
*
* Frees memory allocated for file list.
*
\******************************************************************************/
VOID CleanupFileList(PWPNPINFO pInfo) {

    PFILENODE       pCurrentNode, pNextNode;
    HANDLE          hFindFind;
    LPTSTR          lpstrPos;
    LPTSTR          lpstrTemp;
    WIN32_FIND_DATA FindData;

    pCurrentNode = pInfo->pFileList;

    // Erase all extracted files and cleanup our memory structure.
    while (pCurrentNode) {
        if (!DeleteFile(pCurrentNode->pFileName)) {
            // We might have renamed one of our original cat files to this name. So
            // look for poem*.cat in the same directory
            lpstrPos = _tcsrchr(pCurrentNode->pFileName, TEXT('\\') );

            if (lpstrPos) {
                lpstrPos[1] = TEXT('\0');

                // Now pCurrentNode->pFileName has our directory path
                lpstrTemp = strAllocAndCat( pCurrentNode->pFileName , TEXT("poem*.cat") );

                if (lpstrTemp) {
                    hFindFind = FindFirstFile( lpstrTemp , &FindData );

                    if (hFindFind != INVALID_HANDLE_VALUE) {
                        // Delete the file
                        DeleteFile( FindData.cFileName );
                        FindClose( hFindFind );
                    }

                    strFree( lpstrTemp );
                }
            }
        }
        pNextNode = pCurrentNode->pNextFile;
        GlobalFree(pCurrentNode);
        pCurrentNode = pNextNode;
    }

    pInfo->pFileList = NULL;
}

/******************************************************************************\
*
* Extract (Local Routine)
*
* Extracts all files from the CAB file and adds them to a file list.
*
\******************************************************************************/
BOOL Extract(PWPNPINFO pInfo) {

    HFDI hfdi;
    ERF  erf;
    INT  nError;
    BOOL bReturn;
    int  i;

    bReturn = FALSE;

    // Initialize file table
    for ( i = 0; i < FILETABLESIZE; i++ ) {
        g_FileTable[i].bAvailable = TRUE;
    }

    hfdi = FDICreate( allocfunc, freefunc, openfunc, readfunc, writefunc,
                      closefunc, seekfunc, cpu80386, &erf);
    if (NULL != hfdi){

#ifdef UNICODE
        char achCABName[_MAX_PATH]={0}, achCABDir[_MAX_DIR]={0};

        wcstombs(achCABName, pInfo->pCABName, sizeof(achCABName));
        wcstombs(achCABDir, pInfo->pCABDir, sizeof(achCABDir));

        if (0 != (nError = FDICopy(hfdi, achCABName, achCABDir, 0, fdiNotify, NULL, (LPVOID)(pInfo))))
#else
        if (0 != (nError = FDICopy(hfdi, pInfo->pCABName, pInfo->pCABDir, 0, fdiNotify, NULL, (LPVOID)(pInfo))))
#endif
            bReturn = TRUE;
        else {
            CleanupFileList(pInfo);
        }

        FDIDestroy(hfdi);
    }

    return bReturn;
}

/******************************************************************************\
*
* GetWPNPSetupLibName (Local Routine)
*
* Returns the name of the print wizard library (NT5 and above)
* or equivalent for older clients (NT4 and Win9x)
*
\******************************************************************************/
LPTSTR GetWPNPSetupLibName(LPDWORD lpdwReturn) {

    LPTSTR        lpszLibName;
    OSVERSIONINFO OSVersionInfo;

    *lpdwReturn = ERR_GENERIC;

    OSVersionInfo.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);

    if (GetVersionEx(&OSVersionInfo)) {

        switch (OSVersionInfo.dwPlatformId) {

            // NT clients
            case VER_PLATFORM_WIN32_NT:

                // NT 5 or better
                if (OSVersionInfo.dwMajorVersion >= NT_VER_5) {

                    *lpdwReturn = ERR_NONE;
                    return (LPTSTR)g_szPrintUIMod;
                }
                // NT 4 clients
                else if (OSVersionInfo.dwMajorVersion >= NT_VER_4) {

                    *lpdwReturn = ERR_NONE;
                    return (LPTSTR)g_szPrintUIEquiv;
                }
                // NT clients: ver < 4.0
                else {

                    *lpdwReturn = ERR_PLATFORM_NOT_SUPPORTED;
                    return NULL;
                }

            // Win9x clients
            case VER_PLATFORM_WIN32_WINDOWS:

                *lpdwReturn = ERR_NONE;
                return (LPTSTR)g_szPrintUIEquiv;

            // Other clients ?
            default:

                *lpdwReturn = ERR_PLATFORM_NOT_SUPPORTED;
                return NULL;
        }
    }

    return NULL;
}

/******************************************************************************\
*
* InvokePrintWizard (Local Routine)
*
* Calls the PrintWizard (or 9x/NT4 equivalent)
* for printer setup and installation.
*
\******************************************************************************/
DWORD InvokePrintWizard(PWPNPINFO pInfo, LPDWORD lpAuthError) {

    DWORD   dwReturn;
    DWORD   dwErr;
    LPTSTR  lpszSetupLibName;
    HMODULE hLibrary;
    FARPROC lpProc;

    // Get the name of the print wizard module
    //
    if (NULL != (lpszSetupLibName = GetWPNPSetupLibName(&dwReturn)) ) {

        // Load the print wizard module
        //
        if (NULL != (hLibrary = LoadLibrary(lpszSetupLibName)) ) {

            // Find the webpnp installation proc address
            //
            if (NULL != (lpProc = GetProcAddress(hLibrary, g_szPrintUIEntryW) ) ) {

                // Call the webpnp installation entry point with the correct parameters
                //
                if ((*lpAuthError) = (UINT32) (*lpProc)(NULL, g_hInstance, g_wszParmString, SW_SHOWDEFAULT))
                    dwReturn = ERR_AUTHENTICODE;
                else
                    dwReturn = ERR_NONE;

            } else {

                dwReturn = ERR_NO_PRINTUIENTRY;
            }

            FreeLibrary(hLibrary);

        } else {

            dwReturn = ERR_NO_PRINTUI;
        }
    }

    return dwReturn;
}

/******************************************************************************\
*
* WebPnPCABInstall (Local Routine)
*
* Takes a CAB file and does the driver extraction and printer installation.
*
\******************************************************************************/
DWORD WebPnPCABInstall(PTSTR pCABName, PDWORD lpAuthError)
{
    PTSTR        pFileList;
    PTSTR        pOldDir;
    PWPNPINFO   pInfo;
    DWORD       dwReturn = ERR_NONE;

    if (NULL != (pInfo = (PWPNPINFO)GlobalAlloc(GPTR, sizeof(WPNPINFO)))) {

        if (NULL != (pInfo->pFullCABPath = (PTSTR)GlobalAlloc(GPTR, (lstrlen(pCABName) + 1) * sizeof(TCHAR)))) {

            lstrcpy(pInfo->pFullCABPath, pCABName);

            if (pInfo->pCABDir = GetDirectory(pInfo->pFullCABPath, &dwReturn)) {

                if (pOldDir = GetCurDir()) {

                    if (pInfo->pTempDir = CreateTempDirectory() ) {

                        SetCurrentDirectory(pInfo->pTempDir);

                        if (pInfo->pCABName = GetName(pInfo->pFullCABPath, &dwReturn)) {

                            if (Extract(pInfo)) {

// Verification of files removed
//                            if (ERR_NONE == (dwReturn = VerifyFiles(pInfo, lpAuthError))) {

                                dwReturn = InvokePrintWizard(pInfo, lpAuthError);
//                            }

                                CleanupFileList(pInfo);

                            } else {

                                dwReturn = ERR_CAB_EXTRACT;
                            }

                            GlobalFree(pInfo->pCABName);
                        }

                        SetCurrentDirectory(pOldDir);
                        RemoveDirectory(pInfo->pTempDir);
                        GlobalFree(pInfo->pTempDir);
                    }

                    GlobalFree(pOldDir);
                }

                GlobalFree(pInfo->pCABDir);
            }

            GlobalFree(pInfo->pFullCABPath);

        } else {

            dwReturn = ERR_NO_MEMORY;
        }

        GlobalFree(pInfo);

    } else {

        dwReturn = ERR_NO_MEMORY;
    }

    return dwReturn;
}

/******************************************************************************\
*
* LookupErrorString (Local Routine)
*
* Returns an error string associated with dwErrorCode
*
\******************************************************************************/
LPCTSTR LookupErrorString(DWORD dwErrorCode) {

    int i;
    int nCount;


    static ERROR_MAPPING s_ErrorMap[] = {

        { ERR_NO_MEMORY,              &g_szENoMemory         },
        { ERR_BAD_CAB,                &g_szEBadCAB           },
        { ERR_INVALID_PARAMETER,      &g_szEInvalidParameter },
        { ERR_INVALID_CAB_NAME,       &g_szEInvalidCABName   },
        { ERR_CAB_EXTRACT,            &g_szECABExtract       },
        { ERR_NO_DAT_FILE,            &g_szENoDATFile        },
        { ERR_NO_PRINTUI,             &g_szENoPrintUI        },
        { ERR_NO_PRINTUIENTRY,        &g_szENoPrintUIEntry   },
        { ERR_PRINTUIENTRY_FAIL,      &g_szEPrintUIEntryFail },
        { ERR_PLATFORM_NOT_SUPPORTED, &g_szENotSupported     }
    };


    nCount = sizeof(s_ErrorMap) / sizeof(s_ErrorMap[0]);

    for (i=0; i < nCount; i++) {

        if (0 != ((s_ErrorMap[i].dwErrorCode) & dwErrorCode & ~(ERR_GENERIC)) )
            return *(s_ErrorMap[i].lpszError);
    }

    return g_szEGeneric;
}

/******************************************************************************\
*
* CheckErrors (Local Routine)
*
* Checks dwErrorCode for any error conditions
*
\******************************************************************************/
VOID CheckErrors(DWORD dwErrorCode, DWORD dwAuthError) {

    LPTSTR   lpszMessage = NULL;
    LPTSTR   lpszErrorString = NULL;
    BOOL     bAuthErrorAllocated;
    UINT_PTR Args[MAX_ARGS];

    bAuthErrorAllocated = FALSE;

    if (dwErrorCode != ERR_NONE) {

        // Check for Authenticode errors here
        if (dwErrorCode == ERR_AUTHENTICODE) {

            // Format the authenticode error message.
            // If the message can't be found in the system, use our generic error message
            if (FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM,
                              NULL, dwAuthError, 0, (LPTSTR)&lpszErrorString, 0, NULL)) {
                bAuthErrorAllocated = TRUE;
            }
            else {
                lpszErrorString = (LPTSTR)LookupErrorString(ERR_GENERIC);
            }
        }
        // If the error is not Authenticode, it must be ours.
        // Look it up in our error string table.
        else {
            lpszErrorString = (LPTSTR)LookupErrorString(dwErrorCode);
        }

        // Set up our arg list.
        Args[0] = (UINT_PTR) lpszErrorString;
        if (dwErrorCode == ERR_AUTHENTICODE) {
            Args[1] = dwAuthError;
        }
        else
            Args[1] = dwErrorCode;
        Args[2] = 0;

        // Format our error message and display it in a message box.
        if (FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_STRING | FORMAT_MESSAGE_ARGUMENT_ARRAY,
                          g_szErrorFormat, 0, 0, (LPTSTR)&lpszMessage, 0, (va_list*)Args )) {

            if (lpszMessage) {
                MessageBox(NULL, lpszMessage, g_szError, MB_ICONEXCLAMATION | MB_OK);

                // Free the buffer
                LocalFree(lpszMessage);
            }

        }

    }

    // Free up the Authenticode error string allocated for us by FormatMessage().
    if (bAuthErrorAllocated)
        LocalFree(lpszErrorString);
}

/******************************************************************************\
*
* WinMain
*
* Main entrypoint for the program.
*
\******************************************************************************/
INT WINAPI _tWinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance,
                    LPTSTR lpszCmdLine, INT nCmdShow)
{
    LPTSTR lpszCABName;
    DWORD  dwReturn    = ERR_NONE;
    DWORD  dwAuthError = ERROR_SUCCESS;

    g_hInstance = hInstance;

    if (InitStrings()) {

        if (NULL != (lpszCABName = GetCABName(lpszCmdLine, &dwReturn))) {

            dwReturn = WebPnPCABInstall(lpszCABName, &dwAuthError);
            GlobalFree(lpszCABName);
        }

#if 0
        // We disable the error since oleprn will
        // prompt users with the correct error
        //
        CheckErrors(dwReturn, dwAuthError);
#endif

        // Decide which error code we must return
        //
        if (dwReturn == ERR_NONE) {

            dwReturn = SUCCESS_EXITCODE;

        } else {

            if (dwReturn == ERR_AUTHENTICODE) {

                if (dwAuthError == ERROR_SUCCESS) {

                    dwReturn = SUCCESS_EXITCODE;

                } else {

                    dwReturn = dwAuthError;
                }
            }
        }

        FreeStrings();
    }

    return dwReturn;
}