diff options
| author | Maxim Monastirsky <momonasmon@gmail.com> | 2014-02-25 14:16:25 +0200 |
|---|---|---|
| committer | Caolán McNamara <caolanm@redhat.com> | 2014-02-25 16:23:32 +0000 |
| commit | 27c3b8bca22353dfdcf4c248539a727522fc4e76 (patch) | |
| tree | 6e56d23130f59cb7c5c41012bc81578f205426d5 /sd | |
| parent | b8ebdae0345aa331cf6d6dabf40a6f26dc7d2371 (diff) | |
Don't write compound header to zero length files
Change-Id: Ie964ca8b870714d1c3e92469a771fab9a71f0633
Reviewed-on: https://gerrit.libreoffice.org/8220
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>
Diffstat (limited to 'sd')
| -rw-r--r-- | sd/source/ui/unoidl/sddetect.cxx | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/sd/source/ui/unoidl/sddetect.cxx b/sd/source/ui/unoidl/sddetect.cxx index 853c38e9f2d0..2ec197365197 100644 --- a/sd/source/ui/unoidl/sddetect.cxx +++ b/sd/source/ui/unoidl/sddetect.cxx @@ -352,6 +352,17 @@ OUString SAL_CALL SdFilterDetect::detect( Sequence< beans::PropertyValue >& lDes pStm = aMedium.GetInStream(); if (!pStm) pFilter = NULL; + + pStm->Seek(STREAM_SEEK_TO_END); + const sal_Size nSize = pStm->Tell(); + pStm->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) + pFilter = NULL; } if (pFilter && pStm) |