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 = nl_handle_alloc_nondefault(nltool_cbset);
  30
  31         neigh = rtnl_neigh_alloc();
  32         if (neigh == NULL)
  33                 goto errout;
  34
  35         if (nl_connect(nlh, NETLINK_ROUTE) < 0) {
  36                 fprintf(stderr, "%s\n", nl_geterror());
  37                 goto errout_free;
  38         }
  39
  40         addr = nl_addr_parse(argv[1], AF_UNSPEC);
  41         if (addr == NULL) {
  42                 fprintf(stderr, "Invalid address \"%s\"\n", argv[1]);
  43                 goto errout_close;
  44         }
  45         rtnl_neigh_set_dst(neigh, addr);
  46         nl_addr_put(addr);
  47
  48         rtnl_neigh_set_ifindex(neigh, strtoul(argv[2], NULL, 0));
  49
  50         if (rtnl_neigh_delete(nlh, neigh, 0) < 0) {
  51                 fprintf(stderr, "%s\n", nl_geterror());
  52                 goto errout_close;
  53         }
  54
  55         err = 0;
  56
  57 errout_close:
  58         nl_close(nlh);
  59 errout_free:
  60         rtnl_neigh_put(neigh);
  61 errout:
  62         nl_handle_destroy(nlh);
  63         return err;
  64 }