int route_del(char *ifname, int metric, char *dst, char *gateway, char *genmask) { return route_manip(SIOCDELRT, ifname, metric+1, dst, gateway, genmask); }
int route_add(char *name, int metric, char *dst, char *gateway, char *genmask) { return route_manip(SIOCADDRT, name, metric, dst, gateway, genmask); }