libnl  3.5.0
nl-neightbl-list.c
1 /* SPDX-License-Identifier: LGPL-2.1-only */
2 /*
3  * src/nl-neightbl-list.c Dump neighbour tables
4  *
5  * This library is free software; you can redistribute it and/or
6  * modify it under the terms of the GNU Lesser General Public
7  * License as published by the Free Software Foundation version 2.1
8  * of the License.
9  *
10  * Copyright (c) 2003-2009 Thomas Graf <tgraf@suug.ch>
11  */
12 
13 #include <netlink/cli/utils.h>
14 #include <netlink/cli/link.h>
15 
16 #include <linux/netlink.h>
17 
18 static void print_usage(void)
19 {
20  printf(
21  "Usage: nl-neightbl-list [OPTION]...\n"
22  "\n"
23  "Options\n"
24  " -f, --format=TYPE Output format { brief | details | stats }\n"
25  " -h, --help Show this help\n"
26  " -v, --version Show versioning information\n"
27  );
28  exit(0);
29 }
30 
31 int main(int argc, char *argv[])
32 {
33  struct nl_sock *sock;
34  struct nl_cache *neightbl_cache;
35  struct nl_dump_params params = {
37  .dp_fd = stdout,
38  };
39 
40  sock = nl_cli_alloc_socket();
41  nl_cli_connect(sock, NETLINK_ROUTE);
42  nl_cli_link_alloc_cache(sock);
43  neightbl_cache = nl_cli_alloc_cache(sock, "neighbour table",
45 
46  for (;;) {
47  int c, optidx = 0;
48  static struct option long_opts[] = {
49  { "format", 1, 0, 'f' },
50  { "help", 0, 0, 'h' },
51  { "version", 0, 0, 'v' },
52  { 0, 0, 0, 0 }
53  };
54 
55  c = getopt_long(argc, argv, "f:hv", long_opts, &optidx);
56  if (c == -1)
57  break;
58 
59  switch (c) {
60  case 'f': params.dp_type = nl_cli_parse_dumptype(optarg); break;
61  case 'h': print_usage(); break;
62  case 'v': nl_cli_print_version(); break;
63  }
64  }
65 
66  nl_cache_dump(neightbl_cache, &params);
67 
68  return 0;
69 }
Dump object briefly on one line.
Definition: types.h:22
int rtnl_neightbl_alloc_cache(struct nl_sock *sk, struct nl_cache **result)
Build a neighbour table cache including all neighbour tables currently configured in the kernel.
Definition: neightbl.c:400
enum nl_dump_type dp_type
Specifies the type of dump that is requested.
Definition: types.h:38
void nl_cache_dump(struct nl_cache *cache, struct nl_dump_params *params)
Dump all elements of a cache.
Definition: cache.c:1203
Dumping parameters.
Definition: types.h:33