Function nginx::RSA_meth_set_verify

pub unsafe extern "C" fn RSA_meth_set_verify(
    rsa: *mut RSA_METHOD, 
    verify: Option<unsafe extern "C" fn(dtype: c_int, m: *const c_uchar, m_length: c_uint, sigbuf: *const c_uchar, siglen: c_uint, rsa: *const RSA) -> c_int>
) -> c_int