pptp_echo_rp
struct pptp_echo_rp *echo_rp;
if (echo_rp == NULL || lpkt < sizeof(struct pptp_echo_rp)) {
memset(echo_rp, 0, sizeof(struct pptp_echo_rp));
pptp_init_header(&echo_rp->header, sizeof(struct pptp_echo_rp),
pptp_ctrl_output(_this, NULL, sizeof(struct pptp_echo_rp));
struct pptp_echo_rp *echo_rp;
if (lpkt < sizeof(struct pptp_echo_rp)) {
(int)sizeof(struct pptp_echo_rp));
echo_rp = (struct pptp_echo_rp *)pkt;