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mfplat: Allow NULL size pointer in IMFAttributes::GetAllocatedBlob(). 

Signed-off-by: Nikolay Sivov <nsivov@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Nikolay Sivov 2022-05-12 09:13:29 +03:00 committed by Alexandre Julliard
parent 1336f5966f
commit e3f226fde0
2 changed files with 7 additions and 1 deletions
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3
dlls/mfplat/main.c
View File

@ -2743,7 +2743,8 @@ HRESULT attributes_GetAllocatedBlob(struct attributes *attributes, REFGUID key,
if (SUCCEEDED(hr))
{
*buf = attrval.caub.pElems;
*size = attrval.caub.cElems;
if (size)
*size = attrval.caub.cElems;
}
return hr;

5
dlls/mfplat/tests/mfplat.c
View File

@ -1749,6 +1749,11 @@ static void test_attributes(void)
ok(!memcmp(blob_buf, blob, size), "Unexpected blob.\n");
CoTaskMemFree(blob_buf);
hr = IMFAttributes_GetAllocatedBlob(attributes, &DUMMY_GUID1, &blob_buf, NULL);
ok(hr == S_OK, "Failed to get allocated blob, hr %#lx.\n", hr);
ok(!memcmp(blob_buf, blob, size), "Unexpected blob.\n");
CoTaskMemFree(blob_buf);
hr = IMFAttributes_GetAllocatedBlob(attributes, &DUMMY_GUID2, &blob_buf, &size);
ok(hr == MF_E_ATTRIBUTENOTFOUND, "Unexpected hr %#lx.\n", hr);