[PATCH] ole32: Obtain stream size regardless of current position

[Micah N Gorrell]

Using STREAM_SEEK_END when attempting to determine the size of a stream
that clipboard data has just been rendered into. This corrects an issue
with Office 2016 where the current position of the stream is 0 while
rendering a target of image/png.

Signed-off-by: Micah N Gorrell <mgorrell(a)codeweavers.com>
---
 dlls/ole32/clipboard.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/dlls/ole32/clipboard.c b/dlls/ole32/clipboard.c
index 0c02d02a65..2ca05b8ea6 100644
--- a/dlls/ole32/clipboard.c
+++ b/dlls/ole32/clipboard.c
@@ -789,7 +789,7 @@ static HRESULT get_data_from_stream(IDataObject *data, FORMATETC *fmt, HGLOBAL *
 
         offs.QuadPart = 0;
         IStream_Seek(med.u.pstm, offs, STREAM_SEEK_CUR, &pos);
-        IStream_Seek(med.u.pstm, offs, STREAM_SEEK_SET, NULL);
+        IStream_Seek(med.u.pstm, offs, STREAM_SEEK_END, NULL);
         hr = IStream_CopyTo(med.u.pstm, stm, pos, NULL, NULL);
         ReleaseStgMedium(&med);
         if(FAILED(hr)) goto error;
-- 
2.23.0

[Marvin]

Hi,

While running your changed tests, I think I found new failures.
Being a bot and all I'm not very good at pattern recognition, so I might be
wrong, but could you please double-check?

Full results can be found at:
https://testbot.winehq.org/JobDetails.pl?Key=59568

Your paranoid android.


=== debian10 (32 bit report) ===

ole32:
clipboard.c:841: Test failed: expected 14 got 0
Unhandled exception: page fault on read access to 0x00000000 in 32-bit code (0x00402419).

Report errors:
ole32:clipboard crashed (c0000005)

=== debian10 (32 bit Chinese:China report) ===

ole32:
clipboard.c:841: Test failed: expected 14 got 0
Unhandled exception: page fault on read access to 0x00000000 in 32-bit code (0x00402419).

Report errors:
ole32:clipboard crashed (c0000005)

=== debian10 (32 bit WoW report) ===

ole32:
clipboard.c:841: Test failed: expected 14 got 0
Unhandled exception: page fault on read access to 0x00000000 in 32-bit code (0x00402419).

Report errors:
ole32:clipboard crashed (c0000005)

=== debian10 (64 bit WoW report) ===

ole32:
clipboard.c:841: Test failed: expected 14 got 0
Unhandled exception: page fault on read access to 0x00000000 in 32-bit code (0x00402419).

Report errors:
ole32:clipboard crashed (c0000005)