From 51935986a1e973ab26dc3035905a47e1f19c6062 Mon Sep 17 00:00:00 2001
From: Sebastian Lackner <sebastian@fds-team.de>
Date: Sun, 28 Sep 2014 23:39:51 +0200
Subject: ntdll: OutputDebugString should throw the exception a second time, if
 a debugger is attached.

---
 dlls/kernel32/debugger.c     | 17 +++++++++++++++++
 dlls/ntdll/tests/exception.c | 19 +++++++------------
 2 files changed, 24 insertions(+), 12 deletions(-)

diff --git a/dlls/kernel32/debugger.c b/dlls/kernel32/debugger.c
index d4d66b2..981661b 100644
--- a/dlls/kernel32/debugger.c
+++ b/dlls/kernel32/debugger.c
@@ -277,6 +277,23 @@ void WINAPI OutputDebugStringA( LPCSTR str )
     __ENDTRY
     if (caught_by_dbg) return;
 
+    /* for some unknown reason Windows sends the exception a second time, if a
+     * debugger is attached, and the event wasn't handled in the first attempt */
+    if (NtCurrentTeb()->Peb->BeingDebugged)
+    {
+        __TRY
+        {
+            ULONG_PTR args[2];
+            args[0] = strlen(str) + 1;
+            args[1] = (ULONG_PTR)str;
+            RaiseException( DBG_PRINTEXCEPTION_C, 0, 2, args );
+        }
+        __EXCEPT(debug_exception_handler)
+        {
+        }
+        __ENDTRY
+    }
+
     /* send string to a system-wide monitor */
     if (!mutex_inited)
     {
diff --git a/dlls/ntdll/tests/exception.c b/dlls/ntdll/tests/exception.c
index 7a97ae5..b0f0fac 100644
--- a/dlls/ntdll/tests/exception.c
+++ b/dlls/ntdll/tests/exception.c
@@ -1727,7 +1727,7 @@ static LONG CALLBACK outputdebugstring_vectored_handler(EXCEPTION_POINTERS *Exce
     return EXCEPTION_CONTINUE_SEARCH;
 }
 
-static void test_outputdebugstring(DWORD numexc, BOOL todo)
+static void test_outputdebugstring(DWORD numexc)
 {
     PVOID vectored_handler;
 
@@ -1742,13 +1742,8 @@ static void test_outputdebugstring(DWORD numexc, BOOL todo)
 
     outputdebugstring_exceptions = 0;
     OutputDebugStringA("Hello World");
-    if (todo)
-        todo_wine
-        ok(outputdebugstring_exceptions == numexc, "OutputDebugStringA generated %d exceptions, expected %d\n",
-           outputdebugstring_exceptions, numexc);
-    else
-        ok(outputdebugstring_exceptions == numexc, "OutputDebugStringA generated %d exceptions, expected %d\n",
-           outputdebugstring_exceptions, numexc);
+    ok(outputdebugstring_exceptions == numexc, "OutputDebugStringA generated %d exceptions, expected %d\n",
+       outputdebugstring_exceptions, numexc);
 
     pRtlRemoveVectoredExceptionHandler(vectored_handler);
 }
@@ -1962,9 +1957,9 @@ START_TEST(exception)
             run_rtlraiseexception_test(EXCEPTION_BREAKPOINT);
             run_rtlraiseexception_test(EXCEPTION_INVALID_HANDLE);
             test_stage = 3;
-            test_outputdebugstring(0, FALSE);
+            test_outputdebugstring(0);
             test_stage = 4;
-            test_outputdebugstring(2, TRUE); /* is this a Windows bug? */
+            test_outputdebugstring(2);
             test_stage = 5;
             test_ripevent(0);
             test_stage = 6;
@@ -1984,7 +1979,7 @@ START_TEST(exception)
     test_unwind();
     test_exceptions();
     test_rtlraiseexception();
-    test_outputdebugstring(1, FALSE);
+    test_outputdebugstring(1);
     test_ripevent(1);
     test_closehandle(0);
     test_vectored_continue_handler();
@@ -2004,7 +1999,7 @@ START_TEST(exception)
     pRtlLookupFunctionEntry            = (void *)GetProcAddress( hntdll,
                                                                  "RtlLookupFunctionEntry" );
 
-    test_outputdebugstring(1, FALSE);
+    test_outputdebugstring(1);
     test_ripevent(1);
     test_closehandle(0);
     test_vectored_continue_handler();
-- 
2.1.3