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Viewing changes to src/nl-link-ifindex2name.c

  • Committer: Bazaar Package Importer
  • Author(s): Heiko Stuebner
  • Date: 2011-05-21 19:25:13 UTC
  • Revision ID: james.westby@ubuntu.com-20110521192513-1ieyu9w9kym4bt16
Tags: upstream-3.0
Import upstream version 3.0

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src/nl-link-ifindex2name.c
 
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/*
 
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 * src/nl-link-ifindex2name.c     Transform a interface index to its name
 
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 *
 
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 *      This library is free software; you can redistribute it and/or
 
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 *      modify it under the terms of the GNU Lesser General Public
 
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 *      License as published by the Free Software Foundation version 2.1
 
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 *      of the License.
 
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 *
 
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 * Copyright (c) 2003-2009 Thomas Graf <tgraf@suug.ch>
 
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 */
 
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#include <netlink/cli/utils.h>
 
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#include <netlink/cli/link.h>
 
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static void print_usage(void)
 
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{
 
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        printf("Usage: nl-link-ifindex2name <ifindex>\n");
 
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        exit(0);
 
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}
 
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int main(int argc, char *argv[])
 
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{
 
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        struct nl_sock *sock;
 
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        struct nl_cache *link_cache;
 
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        char name[IFNAMSIZ];
 
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        uint32_t ifindex;
 
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        if (argc < 2)
 
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                print_usage();
 
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        sock = nl_cli_alloc_socket();
 
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        nl_cli_connect(sock, NETLINK_ROUTE);
 
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        link_cache = nl_cli_link_alloc_cache(sock);
 
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        ifindex = nl_cli_parse_u32(argv[1]);
 
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        if (!rtnl_link_i2name(link_cache, ifindex, name, sizeof(name)))
 
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                nl_cli_fatal(ENOENT, "Interface index %d does not exist",
 
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                             ifindex);
 
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        printf("%s\n", name);
 
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        return 0;
 
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}