[PATCH 3/4] msvcrt: Only uppercase a-z in C locale.

[Daniel Lehman]

Signed-off-by: Daniel Lehman 
---
 dlls/msvcrt/tests/string.c |  2 --
 dlls/msvcrt/wcs.c          | 13 +++++++++++++
 2 files changed, 13 insertions(+), 2 deletions(-)

diff --git a/dlls/msvcrt/tests/string.c b/dlls/msvcrt/tests/string.c
index d0f94bcf97..8778ab2568 100644
--- a/dlls/msvcrt/tests/string.c
+++ b/dlls/msvcrt/tests/string.c
@@ -3636,7 +3636,6 @@ static void test_C_locale(void)
             ok(ret == exp, "expected %x, got %x for C locale\n", exp, ret);
         }
         else
-        todo_wine_if(ret != i)
             ok(ret == i, "expected self %x, got %x for C locale\n", i, ret);
     }

@@ -3666,7 +3665,6 @@ static void test_C_locale(void)
                 ok(ret == exp, "expected %x, got %x for C locale\n", exp, ret);
             }
             else
-            todo_wine_if(ret != j)
                 ok(ret == j, "expected self %x, got %x for C locale\n", j, ret);
         }

diff --git a/dlls/msvcrt/wcs.c b/dlls/msvcrt/wcs.c
index d96da44737..28e82ec303 100644
--- a/dlls/msvcrt/wcs.c
+++ b/dlls/msvcrt/wcs.c
@@ -2478,6 +2478,19 @@ MSVCRT_size_t CDECL MSVCRT_wcsnlen(const MSVCRT_wchar_t *s, MSVCRT_size_t maxlen
  */
 int CDECL MSVCRT__towupper_l(MSVCRT_wint_t c, MSVCRT__locale_t locale)
 {
+    MSVCRT_pthreadlocinfo locinfo;
+
+    if(!locale)
+        locinfo = get_locinfo();
+    else
+        locinfo = locale->locinfo;
+
+    if(!locinfo->lc_handle[MSVCRT_LC_CTYPE]) {
+        if(c >= 'a' && c <= 'z')
+            return c + 'A' - 'a';
+        return c;
+    }
+
     return toupperW(c);
 }