diff options
Diffstat (limited to 'starmath/source/smdetect.cxx')
| -rw-r--r-- | starmath/source/smdetect.cxx | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/starmath/source/smdetect.cxx b/starmath/source/smdetect.cxx index d25f0dd54654..3d23031d8d8e 100644 --- a/starmath/source/smdetect.cxx +++ b/starmath/source/smdetect.cxx @@ -296,7 +296,20 @@ OUString SAL_CALL SmFilterDetect::detect( Sequence< PropertyValue >& lDescriptor //this approach, to be fixed at a better level than here SvStream *pStrm = aMedium.GetInStream(); aTypeName = OUString(); - if (pStrm && !pStrm->GetError()) + + sal_Size nSize = 0; + if ( pStrm && !pStrm->GetError() ) + { + pStrm->Seek( STREAM_SEEK_TO_END ); + nSize = pStrm->Tell(); + pStrm->Seek( STREAM_SEEK_TO_BEGIN ); + } + + // Do not attempt to create an SotStorage on a + // 0-length stream as that would create the compound + // document header on the stream and effectively write to + // disk! + if ( nSize > 0 ) { SotStorageRef aStorage = new SotStorage ( pStrm, false ); if ( !aStorage->GetError() ) |