mirror of
git://sourceware.org/git/glibc.git
synced 2024-11-27 03:41:23 +08:00
118 lines
3.0 KiB
C
118 lines
3.0 KiB
C
/* Tests for if_nameindex et al.
|
|
Copyright (C) 2024 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
|
|
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, see
|
|
<https://www.gnu.org/licenses/>. */
|
|
|
|
#include <stdlib.h>
|
|
#include <errno.h>
|
|
#include <net/if.h>
|
|
#include <netdb.h>
|
|
#include <string.h>
|
|
#include <support/check.h>
|
|
#include <support/descriptors.h>
|
|
#include <support/support.h>
|
|
|
|
static char *buffer;
|
|
|
|
static const char *test_names[] = {
|
|
"testing",
|
|
"invalid",
|
|
"dont-match",
|
|
"",
|
|
"\001\001\001\177",
|
|
NULL
|
|
};
|
|
|
|
static void
|
|
checki (int i)
|
|
{
|
|
char *ifname;
|
|
|
|
/* Test that a known-invalid index returns NULL. */
|
|
/* BUFFER should not be accessed. */
|
|
|
|
printf ("Testing if_indextoname (%d) == NULL\n", i);
|
|
ifname = if_indextoname (i, NULL);
|
|
TEST_VERIFY (ifname == NULL);
|
|
TEST_VERIFY (errno == ENXIO);
|
|
}
|
|
|
|
static int
|
|
do_test (void)
|
|
{
|
|
struct if_nameindex *if_ni, *ifp;
|
|
int min_idx, max_idx, buflen = 0;
|
|
int i;
|
|
|
|
if_ni = if_nameindex ();
|
|
TEST_VERIFY (if_ni != NULL);
|
|
|
|
min_idx = max_idx = if_ni->if_index;
|
|
|
|
for (ifp = if_ni; !(ifp->if_index == 0 && ifp->if_name == NULL); ifp++)
|
|
{
|
|
printf ("%u: %s\n", ifp->if_index, ifp->if_name);
|
|
if (ifp->if_index < min_idx)
|
|
min_idx = ifp->if_index;
|
|
if (ifp->if_index > max_idx)
|
|
max_idx = ifp->if_index;
|
|
if (strlen (ifp->if_name) + 1 > buflen)
|
|
buflen = strlen (ifp->if_name) + 1;
|
|
}
|
|
buffer = (char *) xmalloc (buflen);
|
|
|
|
/* Check normal operation. */
|
|
for (ifp = if_ni; !(ifp->if_index == 0 && ifp->if_name == NULL); ifp++)
|
|
{
|
|
unsigned int idx = if_nametoindex (ifp->if_name);
|
|
TEST_VERIFY (idx == ifp->if_index);
|
|
|
|
char *fn = if_indextoname (ifp->if_index, buffer);
|
|
TEST_VERIFY (strcmp (fn, ifp->if_name) == 0);
|
|
}
|
|
|
|
for (i=-2; i<min_idx; i++)
|
|
checki (i);
|
|
for (i=max_idx+1; i<max_idx+3; i++)
|
|
checki (i);
|
|
|
|
/* Check that a known-invalid name returns 0. */
|
|
|
|
for (i=0; test_names[i] != NULL; i++)
|
|
{
|
|
/* Make sure our "invalid" name is really invalid. */
|
|
for (ifp = if_ni; !(ifp->if_index == 0 && ifp->if_name == NULL); ifp++)
|
|
if (strcmp (test_names[i], ifp->if_name) == 0)
|
|
goto not_this_one;
|
|
|
|
printf ("Testing if_nametoindex (%s) == 0\n", test_names[i]);
|
|
|
|
unsigned int idx = if_nametoindex (test_names[i]);
|
|
TEST_VERIFY (idx == 0);
|
|
TEST_VERIFY (errno == ENODEV);
|
|
|
|
not_this_one:
|
|
;
|
|
}
|
|
|
|
|
|
if_freenameindex (if_ni);
|
|
|
|
return 0;
|
|
}
|
|
|
|
#include <support/test-driver.c>
|