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dff8da6b | 1 | /* Copyright (C) 2004-2024 Free Software Foundation, Inc. |
5a6ae8da | 2 | This file is part of the GNU C Library. |
5a6ae8da UD |
3 | |
4 | The GNU C Library is free software; you can redistribute it and/or | |
5 | modify it under the terms of the GNU Lesser General Public | |
6 | License as published by the Free Software Foundation; either | |
7 | version 2.1 of the License, or (at your option) any later version. | |
8 | ||
9 | The GNU C Library 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 GNU | |
12 | Lesser General Public License for more details. | |
13 | ||
14 | You should have received a copy of the GNU Lesser General Public | |
59ba27a6 | 15 | License along with the GNU C Library; if not, see |
5a82c748 | 16 | <https://www.gnu.org/licenses/>. */ |
5a6ae8da UD |
17 | |
18 | #include <errno.h> | |
19 | #include <limits.h> | |
20 | #include <stdio.h> | |
e1be0bc5 | 21 | #include <string.h> |
5a6ae8da UD |
22 | #include <net/if.h> |
23 | ||
24 | ||
25 | static int | |
26 | do_test (void) | |
27 | { | |
5a6ae8da | 28 | char buf[IF_NAMESIZE]; |
16ac7d45 UD |
29 | /* Index 0 is always invalid (see RFC 3493). */ |
30 | char *cp = if_indextoname (0, buf); | |
5a6ae8da UD |
31 | if (cp != NULL) |
32 | { | |
33 | printf ("invalid index returned result \"%s\"\n", cp); | |
34 | return 1; | |
35 | } | |
36 | else if (errno != ENXIO) | |
37 | { | |
38 | int err = errno; | |
39 | char errbuf1[256]; | |
40 | char errbuf2[256]; | |
41 | ||
42 | printf ("errno = %d (%s), expected %d (%s)\n", | |
43 | err, strerror_r (err, errbuf1, sizeof (errbuf1)), | |
44 | ENXIO, strerror_r (ENXIO, errbuf2, sizeof (errbuf2))); | |
45 | return 1; | |
46 | } | |
47 | ||
48 | return 0; | |
49 | } | |
50 | ||
51 | #define TEST_FUNCTION do_test () | |
52 | #include "../test-skeleton.c" |