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 #include <filter/msfilter/dffrecordheader.hxx> 26 operator >>(SvStream & rIn,DffRecordHeader & rRec)27SvStream& operator>>( SvStream& rIn, DffRecordHeader& rRec ) 28 { 29 rRec.nFilePos = rIn.Tell(); 30 sal_uInt16 nTmp(0); 31 rIn >> nTmp; 32 rRec.nImpVerInst = nTmp; 33 rRec.nRecVer = sal::static_int_cast< sal_uInt8 >(nTmp & 0x000F); 34 rRec.nRecInstance = nTmp >> 4; 35 rIn >> rRec.nRecType; 36 rIn >> rRec.nRecLen; 37 if ( rRec.nRecLen > ( SAL_MAX_UINT32 - rRec.nFilePos ) ) // preserving overflow, optimal would be to check 38 rIn.SetError( SVSTREAM_FILEFORMAT_ERROR ); // the record size against the parent header 39 return rIn; 40 } 41 42 /* vim: set noet sw=4 ts=4: */ 43