[PATCH 1/2] gdiplus: Fix argument check in GdipLoadImageFromStream()

[Nikolay Sivov]

From: Louis Lenders <xerox.xerox2000x(a)gmail.com>

Signed-off-by: Nikolay Sivov <nsivov(a)codeweavers.com>
---

For https://bugs.winehq.org/show_bug.cgi?id=42851

 dlls/gdiplus/image.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/dlls/gdiplus/image.c b/dlls/gdiplus/image.c
index c0b54d04d8..b03630c55c 100644
--- a/dlls/gdiplus/image.c
+++ b/dlls/gdiplus/image.c
@@ -4314,6 +4314,11 @@ GpStatus WINGDIPAPI GdipLoadImageFromStream(IStream *stream, GpImage **image)
     HRESULT hr;
     const struct image_codec *codec=NULL;
 
+    TRACE("%p %p\n", stream, image);
+
+    if (!stream || !image)
+        return InvalidParameter;
+
     /* choose an appropriate image decoder */
     stat = get_decoder_info(stream, &codec);
     if (stat != Ok) return stat;
-- 
2.16.1

[PATCH 2/2] gdiplus/tests: Add some invalid arguments tests for GdipLoadImageFromStream()

[Nikolay Sivov]

Signed-off-by: Nikolay Sivov <nsivov(a)codeweavers.com>
---
 dlls/gdiplus/tests/image.c | 32 ++++++++++++++++++++++++++++++++
 1 file changed, 32 insertions(+)

diff --git a/dlls/gdiplus/tests/image.c b/dlls/gdiplus/tests/image.c
index 28f0fcec93..34222e7ce0 100644
--- a/dlls/gdiplus/tests/image.c
+++ b/dlls/gdiplus/tests/image.c
@@ -5161,6 +5161,37 @@ static void test_png_color_formats(void)
     }
 }
 
+static void test_GdipLoadImageFromStream(void)
+{
+    IStream *stream;
+    GpStatus status;
+    GpImage *image;
+    HGLOBAL hglob;
+    BYTE *data;
+    HRESULT hr;
+
+    status = GdipLoadImageFromStream(NULL, NULL);
+    ok(status == InvalidParameter, "Unexected return value %d.\n", status);
+
+    image = (void *)0xdeadbeef;
+    status = GdipLoadImageFromStream(NULL, &image);
+    ok(status == InvalidParameter, "Unexected return value %d.\n", status);
+    ok(image == (void *)0xdeadbeef, "Unexpected image pointer.\n");
+
+    hglob = GlobalAlloc(0, sizeof(pngimage));
+    data = GlobalLock (hglob);
+    memcpy(data, pngimage, sizeof(pngimage));
+    GlobalUnlock(hglob);
+
+    hr = CreateStreamOnHGlobal(hglob, TRUE, &stream);
+    ok(hr == S_OK, "Failed to create a stream.\n");
+
+    status = GdipLoadImageFromStream(stream, NULL);
+    ok(status == InvalidParameter, "Unexpected return value %d.\n", status);
+
+    IStream_Release(stream);
+}
+
 START_TEST(image)
 {
     HMODULE mod = GetModuleHandleA("gdiplus.dll");
@@ -5234,6 +5265,7 @@ START_TEST(image)
     test_getadjustedpalette();
     test_histogram();
     test_imageabort();
+    test_GdipLoadImageFromStream();
 
     GdiplusShutdown(gdiplusToken);
 }
-- 
2.16.1

[PATCH 2/2] gdiplus/tests: Add some invalid arguments tests for GdipLoadImageFromStream()

[Vincent Povirk]

Signed-off-by: Vincent Povirk <vincent(a)codeweavers.com>

[Vincent Povirk]

Signed-off-by: Vincent Povirk <vincent(a)codeweavers.com>