diff options
| -rw-r--r-- | svtools/source/filter/filter.cxx | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/svtools/source/filter/filter.cxx b/svtools/source/filter/filter.cxx index a4202039922b..ef07514285df 100644 --- a/svtools/source/filter/filter.cxx +++ b/svtools/source/filter/filter.cxx @@ -249,9 +249,14 @@ static sal_Bool ImpPeekGraphicFormat( SvStream& rStream, String& rFormatExtensio nStreamLen = rStream.Tell() - nStreamPos; rStream.Seek( nStreamPos ); } - // Die ersten 256 Bytes in einen Buffer laden: - if( nStreamLen >= 256 ) + if (!nStreamLen) + { + return false; // this prevents at least a STL assertion + } + else if (nStreamLen >= 256) + { // load first 256 bytes into a buffer rStream.Read( sFirstBytes, 256 ); + } else { rStream.Read( sFirstBytes, nStreamLen ); |