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nl-neigh-dump.c

/*
 * src/nl-neigh-dump.c     Dump neighbour attributes
 *
 *    This library is free software; you can redistribute it and/or
 *    modify it under the terms of the GNU Lesser General Public
 *    License as published by the Free Software Foundation version 2.1
 *    of the License.
 *
 * Copyright (c) 2003-2006 Thomas Graf <tgraf@suug.ch>
 */

#include "utils.h"

static void print_usage(void)
{
      printf(
      "Usage: nl-neigh-dump <mode> [<filter>]\n"
      "  mode := { brief | detailed | stats | xml }\n"
      "  filter := [dev DEV] [dst ADDR] [lladdr ADDR]\n");
      exit(1);
}

#include "f_neigh.c"

int main(int argc, char *argv[])
{
      struct nl_handle *nlh;
      struct nl_cache *link_cache, *neigh_cache;
      struct rtnl_neigh *neigh;
      struct nl_dump_params params = {
            .dp_fd = stdout,
            .dp_type = NL_DUMP_BRIEF
      };
      int err = 1;

      if (nltool_init(argc, argv) < 0)
            return -1;

      if (argc < 2 || !strcmp(argv[1], "-h"))
            print_usage();
      
      nlh = nltool_alloc_handle();
      if (!nlh)
            return -1;

      neigh = rtnl_neigh_alloc();
      if (neigh == NULL)
            goto errout;

      if (nltool_connect(nlh, NETLINK_ROUTE) < 0)
            goto errout_free;

      link_cache = nltool_alloc_link_cache(nlh);
      if (!link_cache)
            goto errout_close;

      neigh_cache = nltool_alloc_neigh_cache(nlh);
      if (!neigh_cache)
            goto errout_link_cache;

      params.dp_type = nltool_parse_dumptype(argv[1]);
      if (params.dp_type < 0)
            goto errout_neigh_cache;

      get_filter(neigh, argc, argv, 2, neigh_cache);

      nl_cache_dump_filter(neigh_cache, &params, (struct nl_object *) neigh);

      err = 0;

errout_neigh_cache:
      nl_cache_free(neigh_cache);
errout_link_cache:
      nl_cache_free(link_cache);
errout_close:
      nl_close(nlh);
errout_free:
      rtnl_neigh_put(neigh);
errout:
      nl_handle_destroy(nlh);
      return err;
}

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