blob: 68e5158a7afe38d63c0e321588a412bfcb36df62 [file] [log] [blame]
* src/nl-link-ifindex2name.c Transform a interface index to its name
* 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) 2003-2009 Thomas Graf <>
#include <netlink/cli/utils.h>
#include <netlink/cli/link.h>
static void print_usage(void)
printf("Usage: nl-link-ifindex2name <ifindex>\n");
int main(int argc, char *argv[])
struct nl_sock *sock;
struct nl_cache *link_cache;
char name[IFNAMSIZ];
uint32_t ifindex;
if (argc < 2)
sock = nl_cli_alloc_socket();
nl_cli_connect(sock, NETLINK_ROUTE);
link_cache = nl_cli_link_alloc_cache(sock);
ifindex = nl_cli_parse_u32(argv[1]);
if (!rtnl_link_i2name(link_cache, ifindex, name, sizeof(name)))
nl_cli_fatal(ENOENT, "Interface index %d does not exist",
printf("%s\n", name);
return 0;