inet_net_pton
if ((bits = inet_net_pton(AF_INET, s, &ina, sizeof(ina))) == -1)
int inet_net_pton(int, const char *, void *, size_t);
__weak_alias(inet_net_pton,_inet_net_pton)
if ((bits = inet_net_pton(his_addr.su_family, p, net,