fprintf(stderr, "                [del inet6address/prefixlen]\n");
fprintf(stderr, "                [del address[/prefixlen]]\n");
usage(void){  fprintf(stderr, NLS_CATGETS(catfd, ifconfigSet, ifconfig_usage1,			      "Usage: ifconfig [-a] [-i] [-v] interface\n"));  fprintf(stderr, "                [[family] address]\n");#if HAVE_AFINET6  fprintf(stderr, "                [add inet6address/prefixlen]\n");#ifdef SIOCDIFADDR  fprintf(stderr, "                [del inet6address/prefixlen]\n");#endif  fprintf(stderr, "                [tunnel aa.bb.cc.dd]\n");#endif#if HAVE_AFINET  fprintf(stderr, "                [[-]broadcast [aa.bb.cc.dd]]\n");  fprintf(stderr, "                [[-]pointopoint [aa.bb.cc.dd]]\n");  fprintf(stderr, "                [netmask aa.bb.cc.dd]\n");  fprintf(stderr, "                [dstaddr aa.bb.cc.dd]\n");#endif  fprintf(stderr, "                [hw class address]\n");  fprintf(stderr, "                [metric NN] [mtu NN]\n");  fprintf(stderr, "                [[-]trailers] [[-]arp]\n");  fprintf(stderr, "                [[-]allmulti] [[-]promisc]\n");  fprintf(stderr, "                [multicast]\n");  fprintf(stderr, "                [mem_start NN] [io_addr NN] [irq NN]\n");  fprintf(stderr, "                [media type]\n");#ifdef HAVE_TXQUEUELEN  fprintf(stderr, "                [txqueuelen len]\n");#endif  fprintf(stderr, "                [up] [down] ...\n");  NLS_CATCLOSE(catfd)  exit(1);}