src/nl-neigh-delete.c

   1 /*
   2  * src/nl-neigh-delete.c     Delete a neighbour
   3  *
   4  *      This library is free software; you can redistribute it and/or
   5  *      modify it under the terms of the GNU Lesser General Public
   6  *      License as published by the Free Software Foundation version 2.1
   7  *      of the License.
   8  *
   9  * Copyright (c) 2003-2006 Thomas Graf <tgraf@suug.ch>
  10  */
  11
  12 #include "utils.h"
  13
  14 int main(int argc, char *argv[])
  15 {
  16         struct nl_handle *nlh;
  17         struct rtnl_neigh *neigh;
  18         struct nl_addr *addr;
  19         int err = 1;
  20
  21         if (nltool_init(argc, argv) < 0)
  22                 return -1;
  23
  24         if (argc < 3 || !strcmp(argv[1], "-h")) {
  25                 printf("Usage: nl-neigh-delete <addr> <ifindex>\n");
  26                 return 2;
  27         }
  28
  29         nlh = nltool_alloc_handle();
  30         if (!nlh)
  31                 return -1;
  32
  33         neigh = rtnl_neigh_alloc();
  34         if (neigh == NULL)
  35                 goto errout;
  36
  37         if (nl_connect(nlh, NETLINK_ROUTE) < 0) {
  38                 fprintf(stderr, "%s\n", nl_geterror());
  39                 goto errout_free;
  40         }
  41
  42         addr = nl_addr_parse(argv[1], AF_UNSPEC);
  43         if (addr == NULL) {
  44                 fprintf(stderr, "Invalid address \"%s\"\n", argv[1]);
  45                 goto errout_close;
  46         }
  47         rtnl_neigh_set_dst(neigh, addr);
  48         nl_addr_put(addr);
  49
  50         rtnl_neigh_set_ifindex(neigh, strtoul(argv[2], NULL, 0));
  51
  52         if (rtnl_neigh_delete(nlh, neigh, 0) < 0) {
  53                 fprintf(stderr, "%s\n", nl_geterror());
  54                 goto errout_close;
  55         }
  56
  57         err = 0;
  58
  59 errout_close:
  60         nl_close(nlh);
  61 errout_free:
  62         rtnl_neigh_put(neigh);
  63 errout:
  64         nl_handle_destroy(nlh);
  65         return err;
  66 }