1 /* Test of <net/if.h> functions.
2 Copyright (C) 2010-2011 Free Software Foundation, Inc.
4 This program is free software: you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 3 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program. If not, see <http://www.gnu.org/licenses/>. */
17 /* Written by Simon Josefsson <simon@josefsson.org>, 2010. */
23 #include "signature.h"
24 SIGNATURE_CHECK (if_freenameindex, void, (struct if_nameindex *));
25 SIGNATURE_CHECK (if_indextoname, char *, (unsigned int, char *));
26 SIGNATURE_CHECK (if_nameindex, struct if_nameindex *, (void));
27 SIGNATURE_CHECK (if_nametoindex, unsigned int, (const char *));
29 #include <stddef.h> /* NULL */
30 #include <stdio.h> /* fprintf */
33 main (int argc, char *argv[])
35 struct if_nameindex *ifnp, *p;
37 p = ifnp = if_nameindex ();
40 fputs ("if_nameindex returned NULL\n", stderr);
47 char buf[IF_NAMESIZE];
51 printf ("index %d name %s\n", p->if_index, p->if_name);
53 idx = if_nametoindex (p->if_name);
54 if (idx != p->if_index)
56 fprintf (stderr, "if_nametoindex (%s) = %d != %d\n",
57 p->if_name, idx, p->if_index);
61 q = if_indextoname (p->if_index, buf);
64 fprintf (stderr, "if_indextoname (%d) returned NULL\n", p->if_index);
69 fprintf (stderr, "if_indextoname (%d) buffer mismatch?\n",
73 if (strcmp (p->if_name, q) != 0)
75 fprintf (stderr, "if_indextoname (%s) = %s ?!\n", p->if_name, q);
82 if_freenameindex (ifnp);