str_ipaddr
static const char *str_ipaddr(struct sockaddr *);
printf("%s[%s]", str_ipaddr(sa), str_ipport(sa));
printf("%s", str_ipaddr(sa));
printf("%s[%s]", str_ipaddr(sa), str_ipport(sa));
printf("%s", str_ipaddr(sa));
str_ipaddr((void *)(natt_oa + 1)));
printf("%s%s ", str_ipaddr(sa),
printf("%s%s ", str_ipaddr(sa),
(*pr)("ARP: IP Src = %s\n", str_ipaddr(&isaddr));
(*pr)("ARP: IP Tgt = %s\n", str_ipaddr(&itaddr));
(*pr)("IP: Src = %s\n", str_ipaddr(&ip.ip_src));
(*pr)("IP: Dst = %s\n", str_ipaddr(&ip.ip_dst));
static char *str_ipaddr(const struct in_addr *);