Alexandre Julliard : rpcrt4/tests: Fix a test failure on XP SP3.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 7bfa513bc9892e163060d2af808adadaba948f91
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=7bfa513bc9892e163060d2af80...

Author: Alexandre Julliard 
Date:   Fri Oct  8 11:12:11 2010 +0200

rpcrt4/tests: Fix a test failure on XP SP3.

---

dlls/rpcrt4/tests/ndr_marshall.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/dlls/rpcrt4/tests/ndr_marshall.c b/dlls/rpcrt4/tests/ndr_marshall.c
index 569bd20..549d09e 100644
--- a/dlls/rpcrt4/tests/ndr_marshall.c
+++ b/dlls/rpcrt4/tests/ndr_marshall.c
@@ -1543,6 +1543,9 @@ static void test_conformant_string(void)
     my_alloc_called = 0;
     StubMsg.Buffer = StubMsg.BufferStart;
     mem = mem_orig = HeapAlloc(GetProcessHeap(), 0, sizeof(memsrc));
+    /* Windows apparently checks string length on the output buffer to determine its size... */
+    memset( mem, 'x', sizeof(memsrc) - 1 );
+    mem[sizeof(memsrc) - 1] = 0;
     NdrPointerUnmarshall( &StubMsg, &mem, fmtstr_conf_str, 0);
     ok(mem == mem_orig, "mem not alloced\n");
     ok(my_alloc_called == 0, "alloc called %d\n", my_alloc_called);