Jacek Caban : xmllite: Don' t fail in readerinput_detectencoding if input buffer has 3 bytes.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 291ffdd7fff9a65d231c1ad76648bb6da6da26f9
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=291ffdd7fff9a65d231c1ad766...

Author: Jacek Caban 
Date:   Tue Mar 28 17:27:17 2017 +0200

xmllite: Don't fail in readerinput_detectencoding if input buffer has 3 bytes.

3 bytes are enough for detection code and we already have tests for
that, except they (accidentally, I assume) include null byte in the stream.

Signed-off-by: Jacek Caban 
Signed-off-by: Nikolay Sivov 
Signed-off-by: Alexandre Julliard

---

dlls/xmllite/reader.c       | 2 +-
 dlls/xmllite/tests/reader.c | 6 +-----
 2 files changed, 2 insertions(+), 6 deletions(-)

diff --git a/dlls/xmllite/reader.c b/dlls/xmllite/reader.c
index de24537..e81f266 100644
--- a/dlls/xmllite/reader.c
+++ b/dlls/xmllite/reader.c
@@ -875,7 +875,7 @@ static HRESULT readerinput_detectencoding(xmlreaderinput *readerinput, xml_encod
     {
         HRESULT hr = readerinput_growraw(readerinput);
         if (FAILED(hr)) return hr;
-        if (buffer->written <= 3) return MX_E_INPUTEND;
+        if (buffer->written < 3) return MX_E_INPUTEND;
     }

ptrW = (WCHAR *)buffer->data;
diff --git a/dlls/xmllite/tests/reader.c b/dlls/xmllite/tests/reader.c
index c342303..40873a4 100644
--- a/dlls/xmllite/tests/reader.c
+++ b/dlls/xmllite/tests/reader.c
@@ -1447,7 +1447,6 @@ static void test_read_element(void)
     static const UINT depths[] = { 0, 1, 2, 2, 2, 3, 2, 1 };
     IXmlReader *reader;
     XmlNodeType type;
-    IStream *stream;
     unsigned int i;
     UINT depth;
     HRESULT hr;
@@ -1457,9 +1456,7 @@ static void test_read_element(void)

while (test->xml)
     {
-        stream = create_stream_on_data(test->xml, strlen(test->xml)+1);
-        hr = IXmlReader_SetInput(reader, (IUnknown*)stream);
-        ok(hr == S_OK, "got %08x\n", hr);
+        set_input_string(reader, test->xml);

type = XmlNodeType_None;
         hr = IXmlReader_Read(reader, &type);
@@ -1494,7 +1491,6 @@ static void test_read_element(void)
             ok(*str == 0, "got %s\n", wine_dbgstr_w(str));
         }

-        IStream_Release(stream);
         test++;
     }