msvcrt: Validate character in _ismbcl0.

Signed-off-by: Piotr Caban <piotr@codeweavers.com> Signed-off-by: Alexandre Julliard <julliard@winehq.org>

msvcrt: Validate character in _ismbcl0.
622c218c · Piotr Caban · Alexandre Julliard · 64453ea2 · 622c218c · 622c218c
Commit 622c218c authored Feb 14, 2019 by Piotr Caban Committed by Alexandre Julliard Feb 14, 2019
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mbcs.c dlls/msvcrt/mbcs.c +1 -1

string.c dlls/msvcrt/tests/string.c +3 -0

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--- a/dlls/msvcrt/mbcs.c
+++ b/dlls/msvcrt/mbcs.c
@@ -2560,7 +2560,7 @@ int CDECL _ismbcl0(unsigned int c)
  if(get_mbcinfo()->mbcodepage == 932)
  {
    /* JIS non-Kanji */
-    return (c >= 0x8140 && c <= 0x889e);
+    return _ismbclegal(c) && c >= 0x8140 && c <= 0x889e;
  }
  return 0;
 }
--- a/dlls/msvcrt/tests/string.c
+++ b/dlls/msvcrt/tests/string.c
@@ -3288,6 +3288,9 @@ static void test__ismbclx(void)
    ret = _ismbcl0(0x8140);
    ok(ret, "got %d\n", ret);

+    ret = _ismbcl0(0x817f);
+    ok(!ret, "got %d\n", ret);
+
    _setmbcp(cp);
 }