[PATCH 3/3] opcservices: Update content stream position on Read().

[Nikolay Sivov]

Signed-off-by: Nikolay Sivov <nsivov at codeweavers.com>
---
 dlls/opcservices/package.c           | 2 ++
 dlls/opcservices/tests/opcservices.c | 5 +++++
 2 files changed, 7 insertions(+)

diff --git a/dlls/opcservices/package.c b/dlls/opcservices/package.c
index fb07d4db78..5534fe6783 100644
--- a/dlls/opcservices/package.c
+++ b/dlls/opcservices/package.c
@@ -560,6 +560,8 @@ static HRESULT WINAPI opc_content_stream_Read(IStream *iface, void *buff, ULONG
     if (*num_read)
         memcpy(buff, stream->content->data + stream->pos.QuadPart, *num_read);
 
+    stream->pos.QuadPart += *num_read;
+
     return S_OK;
 }
 
diff --git a/dlls/opcservices/tests/opcservices.c b/dlls/opcservices/tests/opcservices.c
index 2ef5677174..6bb0c54c62 100644
--- a/dlls/opcservices/tests/opcservices.c
+++ b/dlls/opcservices/tests/opcservices.c
@@ -159,6 +159,11 @@ static void test_package(void)
     ok(hr == S_OK, "Failed to read content, hr %#x.\n", hr);
     ok(!memcmp(buff, "abc", 3), "Unexpected content.\n");
 
+    move.QuadPart = 0;
+    hr = IStream_Seek(stream2, move, STREAM_SEEK_CUR, &pos);
+    ok(SUCCEEDED(hr), "Seek failed, hr %#x.\n", hr);
+    ok(pos.QuadPart == 3, "Unexpected position.\n");
+
     IStream_Release(stream);
     IStream_Release(stream2);
 
-- 
2.18.0