1 /************************************************************** 2 * 3 * Licensed to the Apache Software Foundation (ASF) under one 4 * or more contributor license agreements. See the NOTICE file 5 * distributed with this work for additional information 6 * regarding copyright ownership. The ASF licenses this file 7 * to you under the Apache License, Version 2.0 (the 8 * "License"); you may not use this file except in compliance 9 * with the License. You may obtain a copy of the License at 10 * 11 * http://www.apache.org/licenses/LICENSE-2.0 12 * 13 * Unless required by applicable law or agreed to in writing, 14 * software distributed under the License is distributed on an 15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 16 * KIND, either express or implied. See the License for the 17 * specific language governing permissions and limitations 18 * under the License. 19 * 20 *************************************************************/ 21 22 23 24 #include "precompiled_filter.hxx" 25 26 #include <filter/msfilter/dffrecordheader.hxx> 27 operator >>(SvStream & rIn,DffRecordHeader & rRec)28SvStream& operator>>( SvStream& rIn, DffRecordHeader& rRec ) 29 { 30 rRec.nFilePos = rIn.Tell(); 31 sal_uInt16 nTmp(0); 32 rIn >> nTmp; 33 rRec.nImpVerInst = nTmp; 34 rRec.nRecVer = sal::static_int_cast< sal_uInt8 >(nTmp & 0x000F); 35 rRec.nRecInstance = nTmp >> 4; 36 rIn >> rRec.nRecType; 37 rIn >> rRec.nRecLen; 38 if ( rRec.nRecLen > ( SAL_MAX_UINT32 - rRec.nFilePos ) ) // preserving overflow, optimal would be to check 39 rIn.SetError( SVSTREAM_FILEFORMAT_ERROR ); // the record size against the parent header 40 return rIn; 41 } 42 43 /* vi:set tabstop=4 shiftwidth=4 expandtab: */ 44