PR_SET_KEEPCAPS
case PR_SET_KEEPCAPS:
if (prctl(PR_SET_KEEPCAPS, 1, 0, 0, 0) != 0)
ASSERT_EQ(prctl(PR_SET_KEEPCAPS, 1, 0, 0, 0), 0);
if (prctl(PR_SET_KEEPCAPS, 1L))