int sd_radv_prefix_set_prefix(sd_radv_prefix *p, const struct in6_addr *in6_addr,
unsigned char prefixlen);
+int sd_radv_prefix_get_prefix(sd_radv_prefix *p, struct in6_addr *ret_in6_addr,
+ unsigned char *ret_prefixlen);
int sd_radv_prefix_set_onlink(sd_radv_prefix *p, int onlink);
int sd_radv_prefix_set_address_autoconfiguration(sd_radv_prefix *p,
int address_autoconfiguration);