pdu_gethdr
if (!(loreq = pdu_gethdr(p))) {
if (!(lreq = pdu_gethdr(p))) {
if (!(lreq = pdu_gethdr(p)))
void *pdu_gethdr(struct pdu *);
if (!(ipdu = pdu_gethdr(p)))
if (!(dout = pdu_gethdr(p)))
if (!(sreq = pdu_gethdr(p)))