radius_prepare
if (radius_prepare(rad_setting, _this, &radctx, chap_radius_response)
if (radius_prepare(rad_setting, (void *)(uintptr_t)ppp->id, &radctx,
if (radius_prepare(rad_setting, NULL, &radctx, radius_acct_on_cb) != 0)
if (radius_prepare(rad_setting, _this, &radctx, pap_radius_response)
int radius_prepare (radius_req_setting *, void *, RADIUS_REQUEST_CTX *, radius_response);