[PATCH] riched20: Properly handle \0 inside text and add test

[Fabian Maurer]

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=43630
Signed-off-by: Fabian Maurer <dark.shadow4 at web.de>
---
 dlls/riched20/reader.c       |  2 +-
 dlls/riched20/tests/editor.c | 35 +++++++++++++++++++++++++++++++++++
 2 files changed, 36 insertions(+), 1 deletion(-)

diff --git a/dlls/riched20/reader.c b/dlls/riched20/reader.c
index 8410241729..dc551bf584 100644
--- a/dlls/riched20/reader.c
+++ b/dlls/riched20/reader.c
@@ -109,7 +109,7 @@ int _RTFGetChar(RTF_Info *info)
 	}
 	ch = (unsigned char)stream->buffer[stream->dwUsed++];
 	if (!ch)
-		 return EOF;
+		 return ' ';
 	return ch;
 }
 
diff --git a/dlls/riched20/tests/editor.c b/dlls/riched20/tests/editor.c
index 85c607becf..7975f3647c 100644
--- a/dlls/riched20/tests/editor.c
+++ b/dlls/riched20/tests/editor.c
@@ -5754,6 +5754,29 @@ static DWORD CALLBACK test_EM_STREAMIN_esCallback_UTF8Split(DWORD_PTR dwCookie,
     return 0;
 }
 
+static DWORD CALLBACK test_EM_STREAMIN_NullBytes(DWORD_PTR dwCookie, LPBYTE pbBuff, LONG cb, LONG *pcb)
+{
+    DWORD *phase = (DWORD *)dwCookie;
+
+   if (*phase == 0)
+   {
+       static const char first[] = "{\\rtf1\\ansi{Th\0is";
+       *pcb = sizeof(first);
+       memcpy(pbBuff, first, *pcb);
+   }
+   else if (*phase == 1) {
+       static const char second[] = " is a test}}";
+       *pcb = sizeof(second);
+       memcpy(pbBuff, second, *pcb);
+   }
+   else
+       *pcb = 0;
+
+   ++*phase;
+
+   return 0;
+}
+
 struct StringWithLength {
     int length;
     char *buffer;
@@ -6040,6 +6063,18 @@ static void test_EM_STREAMIN(void)
   result = SendMessageA(hwndRichEdit, WM_GETTEXT, 1024, (LPARAM)buffer);
   ok (!strcmp(buffer, "line1"),
       "EM_STREAMIN: Unexpected text '%s'\n", buffer);
+
+  /* Test 0-bytes inside text */
+  hwndRichEdit = new_richedit_with_style(NULL, 0);
+  phase = 0;
+  es.dwCookie = (DWORD_PTR)&phase;
+  es.dwError = 0;
+  es.pfnCallback = test_EM_STREAMIN_NullBytes;
+  result = SendMessageA(hwndRichEdit, EM_STREAMIN, SF_RTF, (LPARAM)&es);
+  ok(result == 16, "got %ld, expected %d\n", result, 16);
+  result = SendMessageA(hwndRichEdit, WM_GETTEXT, 1024, (LPARAM)buffer);
+  ok (!strcmp(buffer, "Th is  is a test"), "EM_STREAMIN: Unexpected text '%s'\n", buffer);
+
 }
 
 static void test_EM_StreamIn_Undo(void)
-- 
2.19.1