int lua_to_cidr(struct lua_State *L, enum lua_place from, const char *name, struct ip4_subnet *cidr);
int lua_to_cidr6(struct lua_State *L, enum lua_place from, const char *name, struct ip6_subnet *cidr);
int lua_to_int(struct lua_State *L, enum lua_place from, const char *name, uint32_t *val);
int lua_to_cidr(struct lua_State *L, enum lua_place from, const char *name, struct ip4_subnet *cidr);
int lua_to_cidr6(struct lua_State *L, enum lua_place from, const char *name, struct ip6_subnet *cidr);
int lua_to_int(struct lua_State *L, enum lua_place from, const char *name, uint32_t *val);