icmp_gwaddr
icmp->icmp_gwaddr = getipv4addr(*arg);
if (resolve(t, (char *)&ic->icmp_gwaddr) == -1)
(void)printf("(New addr: %s)\n", inet_ntoa(icp->icmp_gwaddr));
icp->icmp_gwaddr.s_addr = dest;
gw = ntohl(icp->icmp_gwaddr.s_addr);
icmpdst.sin_addr = icp->icmp_gwaddr;
inet_ntoa_r(icp->icmp_gwaddr, gwbuf));