xref: /trunk/main/sal/systools/win32/uwinapi/MoveFileExA.cpp (revision 24297db34623acd4ed3cd634e301c7c8a91fabbc)

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 *
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
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#include "macros.h"

#define WININIT_FILENAME    "wininit.ini"
#define RENAME_SECTION      "rename"

IMPLEMENT_THUNK( kernel32, WINDOWS, BOOL, WINAPI, MoveFileExA, ( LPCSTR lpExistingFileNameA, LPCSTR lpNewFileNameA, DWORD dwFlags ) )
{
    BOOL    fSuccess = FALSE;   // assume failure

    // Windows 9x has a special mechanism to move files after reboot

    if ( dwFlags & MOVEFILE_DELAY_UNTIL_REBOOT )
    {
        CHAR    szExistingFileNameA[MAX_PATH];
        CHAR    szNewFileNameA[MAX_PATH] = "NUL";

        // Path names in WININIT.INI must be in short path name form

        if (
            GetShortPathNameA( lpExistingFileNameA, szExistingFileNameA, MAX_PATH ) &&
            (!lpNewFileNameA || GetShortPathNameA( lpNewFileNameA, szNewFileNameA, MAX_PATH ))
            )
        {
            CHAR    szBuffer[32767];    // The buffer size must not exceed 32K
            DWORD   dwBufLen = GetPrivateProfileSectionA( RENAME_SECTION, szBuffer, elementsof(szBuffer), WININIT_FILENAME );

            CHAR    szRename[MAX_PATH]; // This is enough for at most to times 67 characters
            strcpy( szRename, szNewFileNameA );
            strcat( szRename, "=" );
            strcat( szRename, szExistingFileNameA );
            size_t  lnRename = strlen(szRename);

            if ( dwBufLen + lnRename + 2 <= elementsof(szBuffer) )
            {
                CopyMemory( &szBuffer[dwBufLen], szRename, lnRename );
                szBuffer[dwBufLen + lnRename ] = 0;
                szBuffer[dwBufLen + lnRename + 1 ] = 0;

                fSuccess = WritePrivateProfileSectionA( RENAME_SECTION, szBuffer, WININIT_FILENAME );
            }
            else
                SetLastError( ERROR_BUFFER_OVERFLOW );
        }
    }
    else
    {

        fSuccess = MoveFileA( lpExistingFileNameA, lpNewFileNameA );

        if ( !fSuccess && 0 != (dwFlags & (MOVEFILE_COPY_ALLOWED | MOVEFILE_REPLACE_EXISTING)) )
        {
            BOOL    bFailIfExist = 0 == (dwFlags & MOVEFILE_REPLACE_EXISTING);

            fSuccess = CopyFileA( lpExistingFileNameA, lpNewFileNameA, bFailIfExist );

            // In case of successful copy do not return FALSE if delete fails.
            // Error detection is done by GetLastError()

            if ( fSuccess )
            {
                SetLastError( NO_ERROR );
                DeleteFileA( lpExistingFileNameA );
            }
        }

    }

    return fSuccess;
}