arpreq
struct arptab arpreq; /* Arp table entry */
bzero((caddr_t) &arpreq, sizeof(arpreq));
arpreq.at_flags = ATF_COM;
arpreq.at_in = ia->s_addr;
bcopy(haddr, arpreq.at_enaddr, halen);
arpreq.at_dltype = DL_ETHER;
struct arpreq arpreq; /* Arp request ioctl block */
bzero((caddr_t) &arpreq, sizeof(arpreq));
arpreq.arp_flags = ATF_INUSE | ATF_COM;
arpreq.arp_pa.sa_family = AF_INET;
si = (struct sockaddr_in *) &arpreq.arp_pa;
arpreq.arp_ha.sa_family = hafamily;
p = arpreq.arp_ha.sa_data;
iocb.ic_dp = (char *)&arpreq;
iocb.ic_len = sizeof(arpreq);
if (ioctl(s, SIOCSARP, (caddr_t) &arpreq) < 0) {
struct arpreq arpreq;
memset(&arpreq, '\0', sizeof arpreq);
arpreq.arp_ha.sa_len = sizeof(struct sockaddr);
arpreq.arp_ha.sa_family = AF_UNSPEC;
memcpy(arpreq.arp_ha.sa_data, LLADDR(&dls.sdl), dls.sdl.sdl_alen);
SET_SA_FAMILY(arpreq.arp_pa, AF_INET);
((struct sockaddr_in *)&arpreq.arp_pa)->sin_addr.s_addr = addr.s_addr;
arpreq.arp_flags = ATF_PERM | ATF_PUBL;
if (ID0ioctl(s, SIOCSARP, (caddr_t) & arpreq) < 0) {
struct arpreq arpreq;
memset(&arpreq, '\0', sizeof arpreq);
SET_SA_FAMILY(arpreq.arp_pa, AF_INET);
((struct sockaddr_in *)&arpreq.arp_pa)->sin_addr.s_addr = addr.s_addr;
if (ID0ioctl(s, SIOCDARP, (caddr_t) & arpreq) < 0) {