/* Test interface name <-> index conversions. Copyright (C) 1997, 2000 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 Lesser General Public License as published by the Free Software Foundation; either version 2.1 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 Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with the GNU C Library; 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); return failures ? 1 : 0; }