[Libreoffice-commits] core.git: Branch 'libreoffice-4-2' - sd/source starmath/source

[Maxim Monastirsky]

 sd/source/ui/unoidl/sddetect.cxx |    6 ++++++
 starmath/source/smdetect.cxx     |    8 ++++++++
 2 files changed, 14 insertions(+)

New commits:
commit 70c5401aa3b063d0f275042a48a54f42c1f54c03
Author: Maxim Monastirsky <momonasmon at gmail.com>
Date:   Mon Jul 14 23:55:04 2014 +0300

    fdo#81284 Don't write to zero length files
    
    Change-Id: I4eddcda3977f43b39abdaa8d9089ff661092361c
    Reviewed-on: https://gerrit.libreoffice.org/10310
    Reviewed-by: David Tardon <dtardon at redhat.com>
    Tested-by: David Tardon <dtardon at redhat.com>

diff --git a/sd/source/ui/unoidl/sddetect.cxx b/sd/source/ui/unoidl/sddetect.cxx
index e8ee02e..161d11f 100644
--- a/sd/source/ui/unoidl/sddetect.cxx
+++ b/sd/source/ui/unoidl/sddetect.cxx
@@ -351,6 +351,12 @@ OUString SAL_CALL SdFilterDetect::detect( Sequence< beans::PropertyValue >& lDes
                         pStm = aMedium.GetInStream();
                         if (!pStm)
                             pFilter = NULL;
+                        else
+                        {
+                            pStm->Seek( STREAM_SEEK_TO_BEGIN );
+                            if (pStm->remainingSize() == 0)
+                                pFilter = NULL;
+                        }
                     }
 
                     if (pFilter && pStm)
diff --git a/starmath/source/smdetect.cxx b/starmath/source/smdetect.cxx
index ca9453a..c943bee 100644
--- a/starmath/source/smdetect.cxx
+++ b/starmath/source/smdetect.cxx
@@ -296,8 +296,16 @@ 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();
+
+                sal_Size nStreamSize = 0;
                 if (pStrm && !pStrm->GetError())
                 {
+                    pStrm->Seek( STREAM_SEEK_TO_BEGIN );
+                    nStreamSize = pStrm->remainingSize();
+                }
+
+                if ( nStreamSize > 0 )
+                {
                     SotStorageRef aStorage = new SotStorage ( pStrm, sal_False );
                     if ( !aStorage->GetError() )
                     {