arp_pln
ah->arp_pln = sizeof(ah->arp_spa); /* protocol address length */
ah->arp_pln != sizeof(ah->arp_spa)) {
arp->arp_pln != sizeof(arp->arp_spa)) {
ap->arp_pln != sizeof(ap->arp_spa) )
ap->arp_pln = sizeof(ap->arp_spa); /* protocol address length */
ea.arp_pln != sizeof(struct in_addr))
ea.arp_pln != sizeof(struct in_addr))
ea->arp_pln = sizeof(ea->arp_spa); /* protocol address length */
ea->arp_pln = sizeof(ea->arp_spa); /* protocol address length */
ap->arp_hln != 6 || ap->arp_pln != 4) {
|| ap->arp_pln != sizeof(SPA(ap))) {
op, pro, ap->arp_pln, hrd, ap->arp_hln);