| /* Test interface name <-> index conversions. |
| Copyright (C) 1997 Free Software Foundation, Inc. |
| This file is part of the GNU C Library. |
| Contributed by Philip Blundell <Philip.Blundell@pobox.com>. |
| |
| The GNU C Library is free software; you can redistribute it and/or |
| modify it under the terms of the GNU Library General Public License as |
| published by the Free Software Foundation; either version 2 of the |
| License, or (at your option) any later version. |
| |
| The GNU C Library is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| Library General Public License for more details. |
| |
| You should have received a copy of the GNU Library General Public |
| License along with the GNU C Library; see the file COPYING.LIB. If not, |
| write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
| Boston, MA 02111-1307, USA. */ |
| |
| #include <errno.h> |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <net/if.h> |
| |
| int |
| main (void) |
| { |
| int failures = 0; |
| struct if_nameindex *idx = if_nameindex (), *p; |
| if (idx == NULL) |
| { |
| if (errno != ENOSYS) |
| { |
| printf ("Couldn't get any interfaces.\n"); |
| exit (1); |
| } |
| /* The function is simply not implemented. */ |
| exit (0); |
| } |
| |
| printf ("Idx Name | Idx Name\n"); |
| |
| for (p = idx; p->if_index || p->if_name; ++p) |
| { |
| char buf[IFNAMSIZ]; |
| unsigned int ni; |
| int result; |
| printf ("%3d %15s | ", p->if_index, p->if_name); |
| printf ("%3d", ni = if_nametoindex (p->if_name)); |
| printf ("%15s", if_indextoname (p->if_index, buf)); |
| result = (ni != p->if_index || (strcmp (buf, p->if_name))); |
| if (ni == p->if_index) |
| /* We have to make sure that this is not an alias with the |
| same interface number. */ |
| if (p->if_index == if_nametoindex (buf)) |
| result = 0; |
| printf ("%10s", result ? "fail" : "okay"); |
| printf ("\n"); |
| failures += result; |
| } |
| if_freenameindex (idx); |
| exit (failures ? 1 : 0); |
| } |