    /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
    /*
     * This file is part of the LibreOffice project.
     *
     * This Source Code Form is subject to the terms of the Mozilla Public
     * License, v. 2.0. If a copy of the MPL was not distributed with this
     * file, You can obtain one at http://mozilla.org/MPL/2.0/.
     *
     * This file incorporates work covered by the following license notice:
     *
     *   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 .
     */

    #include <stdlib.h>
    #include <stdio.h>
    #include <database.hxx>
    #include <globals.hxx>
    #include <command.hxx>
    #include <rtl/ustring.hxx>
    #include <osl/file.hxx>
    #include <memory>

    #define BR 0x8000
    bool FileMove_Impl( const OUString & rFile1, const OUString & rFile2, bool bMoveAlways )
    {
        //printf( "Move from %s to %s\n", rFile2.GetStr(), rFile1.GetStr() );
        sal_uLong nC1 = 0;
        sal_uLong nC2 = 1;
        if( !bMoveAlways )
        {
            SvFileStream aOutStm1( rFile1, StreamMode::STD_READ );
            SvFileStream aOutStm2( rFile2, StreamMode::STD_READ );
            if( aOutStm1.GetError() == ERRCODE_NONE )
            {
                std::unique_ptr<sal_uInt8[]> pBuf1(new sal_uInt8[ BR ]);
                std::unique_ptr<sal_uInt8[]> pBuf2(new sal_uInt8[ BR ]);
                nC1 = aOutStm1.ReadBytes(pBuf1.get(), BR);
                nC2 = aOutStm2.ReadBytes(pBuf2.get(), BR);
                while( nC1 == nC2 )
                {
                    if( memcmp( pBuf1.get(), pBuf2.get(), nC1 ) )
                    {
                        nC1++;
                        break;
                    }
                    else
                    {
                        if( 0x8000 != nC1 )
                            break;
                        nC1 = aOutStm1.ReadBytes(pBuf1.get(), BR);
                        nC2 = aOutStm2.ReadBytes(pBuf2.get(), BR);
                    }
                }
            }
        }
        OUString fileURL2;
        osl::FileBase::getFileURLFromSystemPath( rFile2, fileURL2 );
        if( nC1 != nC2 )
        {// something has changed
            OUString fileURL1;
            osl::FileBase::getFileURLFromSystemPath( rFile1, fileURL1 );
            // move file
            if( osl::FileBase::E_None != osl::File::move( fileURL2, fileURL1 ) )
            {
                // delete both files
                osl::File::remove( fileURL1 );
                osl::File::remove( fileURL2 );
                return false;
            }
            return true;
        }
        return osl::FileBase::E_None == osl::File::remove( fileURL2 );
    }

    //This function gets a system path to a file [fname], creates a temp file in
    //the same folder as [fname] and returns the system path of the temp file.
    inline OUString tempFileHelper(OUString const & fname)
    {
        OUString aTmpFile;

        sal_Int32 delimIndex = fname.lastIndexOf( '/' );
        if( delimIndex > 0 )
        {
            OUString aTmpDir( fname.copy( 0,  delimIndex ) );
            osl::FileBase::getFileURLFromSystemPath( aTmpDir, aTmpDir );
            osl::FileBase::createTempFile( &aTmpDir, nullptr, &aTmpFile );
            osl::FileBase::getSystemPathFromFileURL( aTmpFile, aTmpFile );
        }
        else
        {
            OStringBuffer aStr("invalid filename: ");
            aStr.append(OUStringToOString(fname, RTL_TEXTENCODING_UTF8));
            fprintf(stderr, "%s\n", aStr.getStr());
        }
        return aTmpFile;
    }

    int main ( int argc, char ** argv)
    {
        OUString aTmpSlotMapFile;
        OUString aTmpDepFile;

        SvCommand aCommand( argc, argv );

        if( aCommand.nVerbosity != 0 )
            printf( "StarView Interface Definition Language (IDL) Compiler 3.0\n" );

        Init();
        std::unique_ptr<SvIdlWorkingBase> pDataBase( new SvIdlWorkingBase(aCommand));

        int nExit = 0;
        if( !aCommand.aExportFile.isEmpty() )
        {
            osl::DirectoryItem aDI;
            osl::FileStatus fileStatus( osl_FileStatus_Mask_FileName );
            osl::DirectoryItem::get( aCommand.aExportFile, aDI );
            aDI.getFileStatus(fileStatus);
            pDataBase->SetExportFile( fileStatus.getFileName() );
        }

        if( ReadIdl( pDataBase.get(), aCommand ) )
        {
            if( nExit == 0 && !aCommand.aSlotMapFile.isEmpty() )
            {
                aTmpSlotMapFile = tempFileHelper(aCommand.aSlotMapFile);
                SvFileStream aOutStm( aTmpSlotMapFile, StreamMode::READWRITE | StreamMode::TRUNC );
                if( !pDataBase->WriteSfx( aOutStm ) )
                {
                    nExit = -1;
                    OStringBuffer aStr("cannot write slotmap file: ");
                    aStr.append(OUStringToOString(aCommand.aSlotMapFile, RTL_TEXTENCODING_UTF8));
                    fprintf(stderr, "%s\n", aStr.getStr());
                }
            }
            if (nExit == 0 && !aCommand.m_DepFile.isEmpty())
            {
                aTmpDepFile = tempFileHelper(aCommand.m_DepFile);
                SvFileStream aOutStm( aTmpDepFile, StreamMode::READWRITE | StreamMode::TRUNC );
                pDataBase->WriteDepFile(aOutStm, aCommand.aTargetFile);
                if( aOutStm.GetError() != ERRCODE_NONE )
                {
                    nExit = -1;
                    fprintf( stderr, "cannot write dependency file: %s\n",
                            OUStringToOString( aCommand.m_DepFile,
                                RTL_TEXTENCODING_UTF8 ).getStr() );
                }
            }
        }
        else
            nExit = -1;

        if( nExit == 0 )
        {
            bool bErr = false;
            bool bDoMove = aCommand.aTargetFile.isEmpty();
            OUString aErrFile, aErrFile2;
            if( !bErr && !aCommand.aSlotMapFile.isEmpty() )
            {
                bErr |= !FileMove_Impl( aCommand.aSlotMapFile, aTmpSlotMapFile, bDoMove );
                if( bErr ) {
                    aErrFile = aCommand.aSlotMapFile;
                    aErrFile2 = aTmpSlotMapFile;
                }
            }
            if (!bErr && !aCommand.m_DepFile.isEmpty())
            {
                bErr |= !FileMove_Impl( aCommand.m_DepFile, aTmpDepFile, bDoMove );
                if (bErr) {
                    aErrFile = aCommand.m_DepFile;
                    aErrFile2 = aTmpDepFile;
                }
            }

            if( bErr )
            {
                nExit = -1;
                OStringBuffer aStr("cannot move file from: ");
                aStr.append(OUStringToOString(aErrFile2,
                    RTL_TEXTENCODING_UTF8));
                aStr.append("\n              to file: ");
                aStr.append(OUStringToOString(aErrFile,
                    RTL_TEXTENCODING_UTF8));
                fprintf( stderr, "%s\n", aStr.getStr() );
            }
            else
            {
                if( !aCommand.aTargetFile.isEmpty() )
                {
                    // stamp file, because idl passed through correctly
                    SvFileStream aOutStm( aCommand.aTargetFile,
                                    StreamMode::READWRITE | StreamMode::TRUNC );
                }
            }
        }

        if( nExit != 0 )
        {
            if( !aCommand.aSlotMapFile.isEmpty() )
            {
                osl::FileBase::getSystemPathFromFileURL( aTmpSlotMapFile, aTmpSlotMapFile );
                osl::File::remove( aTmpSlotMapFile );
            }
        }

        if( nExit != 0 )
            fprintf( stderr, "svidl terminated with errors\n" );
        return nExit;
    }

    /* vim:set shiftwidth=4 softtabstop=4 expandtab: */

↑ V581 The conditional expressions of the 'if' statements situated alongside each other are identical. Check lines: 203, 212.

↑ V560 A part of conditional expression is always true: nExit == 0.

↑ V560 A part of conditional expression is always true: !bErr.