PDU_DATA
buf = pdu_getbuf(p, &n, PDU_DATA);
buf = pdu_getbuf(p, &n, PDU_DATA);
if (all && (b = pdu_getbuf(p, &s, PDU_DATA)))
pdu_addbuf(p, db, dlen, PDU_DATA))
if (pdu_addbuf(p, buf, len, PDU_DATA))
pdu_addbuf(p, buf, size, PDU_DATA);
buf = pdu_getbuf(p, &n, PDU_DATA);
buf = pdu_getbuf(p, &n, PDU_DATA);
pdu_addbuf(p, buf, size, PDU_DATA);