[settings] Fix erroneous bit-masking in fetch_uintz_setting()

diff --git a/src/core/settings.c b/src/core/settings.c
index 3a58e39..43b463a 100644 (file)
--- a/src/core/settings.c
+++ b/src/core/settings.c
@@ -544,7 +544,8 @@ int fetch_uint_setting ( struct settings *settings, struct setting *setting,
                return len;
 
        /* Mask off sign-extended bits */
-       *value = ( svalue & ( -1UL >> ( sizeof ( long ) - len ) ) );
+       assert ( len <= ( int ) sizeof ( long ) );
+       *value = ( svalue & ( -1UL >> ( 8 * ( sizeof ( long ) - len ) ) ) );
 
        return len;
 }