2 * src/nl-link-name2ifindex.c Transform a interface name to its index
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
9 * Copyright (c) 2003-2008 Thomas Graf <tgraf@suug.ch>
12 #include <netlink/cli/utils.h>
13 #include <netlink/cli/link.h>
15 static void print_usage(void)
17 printf("Usage: nl-link-ifindex2name <ifindex>\n");
21 int main(int argc, char *argv[])
24 struct nl_cache *link_cache;
30 sock = nl_cli_alloc_socket();
31 nl_cli_connect(sock, NETLINK_ROUTE);
32 link_cache = nl_cli_link_alloc_cache(sock);
34 if (!(ifindex = rtnl_link_name2i(link_cache, argv[1])))
35 nl_cli_fatal(ENOENT, "Interface \"%s\" does not exist",
38 printf("%u\n", ifindex);