prom_nextprop
while (newprop = (char *)prom_nextprop(curprop)) {
while (propname = (char *)prom_nextprop(nodeid, buf1, buf2)) {
valbuf = (char *)prom_nextprop(node_id, opp->oprom_array,
valbuf = (char *)prom_nextprop(node_id, "name",
extern caddr_t prom_nextprop(pnode_t nodeid, caddr_t previous,
extern caddr_t prom_nextprop(pnode_t nodeid, caddr_t previous,
(void) prom_nextprop(node, prvname, propname);