+ char *astr = alloca(strlen(str) + 1);
+
+ strcpy(astr, str);
+ if (!split_netmask(astr, netmask, af == AF_INET6))
+ return 0;
+
+ if (af == AF_INET6) {
+ if (*netmask > 128)
+ return 0;
+ } else {
+ if (*netmask > 32)
+ return 0;
+ }
+
+ return inet_pton(af, astr, addr);
+}
+
+char *
+format_macaddr(uint8_t *mac)
+{
+ static char str[sizeof("ff:ff:ff:ff:ff:ff ")];
+
+ snprintf(str, sizeof(str), "%02x:%02x:%02x:%02x:%02x:%02x",
+ mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
+
+ return str;