userenv/tests: Fix buffer overrun.

9d54392c · Dan Kegel · Alexandre Julliard · 955adcbc · 9d54392c
Commit 9d54392c authored Jun 03, 2008 by Dan Kegel Committed by Alexandre Julliard Jun 04, 2008
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userenv.c dlls/userenv/tests/userenv.c +1 -1

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--- a/dlls/userenv/tests/userenv.c
+++ b/dlls/userenv/tests/userenv.c
@@ -137,7 +137,7 @@ static BOOL get_env(const WCHAR * env, const char * var, char ** result)
    {
        envlen = lstrlenW(p);
        sprintf(buf, "%s", userenv_dbgstr_w(p));
-        if (CompareStringA(GetThreadLocale(), NORM_IGNORECASE|LOCALE_USE_CP_ACP, buf, varlen, var, varlen) == CSTR_EQUAL)
+        if (CompareStringA(GetThreadLocale(), NORM_IGNORECASE|LOCALE_USE_CP_ACP, buf, min(envlen, varlen), var, varlen) == CSTR_EQUAL)
        {
            if (buf[varlen] == '=')
            {