user32: Pass a valid length to RtlUnicodeToMultiByteN/RtlMultiByteToUnicodeN.

Signed-off-by: Alexandre Julliard <julliard@winehq.org>

user32: Pass a valid length to RtlUnicodeToMultiByteN/RtlMultiByteToUnicodeN.
dee9a361 · Alexandre Julliard · 1f71ea31 · dee9a361
Commit dee9a361 authored Apr 14, 2022 by Alexandre Julliard
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winproc.c dlls/user32/winproc.c +2 -2

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--- a/dlls/user32/winproc.c
+++ b/dlls/user32/winproc.c
@@ -373,7 +373,7 @@ LRESULT WINPROC_CallProcAtoW( winproc_callback_t callback, HWND hwnd, UINT msg, 
            if (*result >= 0)
            {
                DWORD len;
-                RtlUnicodeToMultiByteN( (LPSTR)lParam, ~0u, &len,
+                RtlUnicodeToMultiByteN( (LPSTR)lParam, 512 * 3, &len,
                                        buffer, (lstrlenW(buffer) + 1) * sizeof(WCHAR) );
                *result = len - 1;
            }
@@ -633,7 +633,7 @@ static LRESULT WINPROC_CallProcWtoA( winproc_callback_t callback, HWND hwnd, UIN
            if (*result >= 0)
            {
                DWORD len;
-                RtlMultiByteToUnicodeN( (LPWSTR)lParam, ~0u, &len, buffer, strlen(buffer) + 1 );
+                RtlMultiByteToUnicodeN( (LPWSTR)lParam, 512 * 3, &len, buffer, strlen(buffer) + 1 );
                *result = len / sizeof(WCHAR) - 1;
            }
        }