1 | /* Check that a DNS packet buffer has the expected contents. |
2 | Copyright (C) 2016-2017 Free Software Foundation, Inc. |
3 | This file is part of the GNU C Library. |
4 | |
5 | The GNU C Library is free software; you can redistribute it and/or |
6 | modify it under the terms of the GNU Lesser General Public |
7 | License as published by the Free Software Foundation; either |
8 | version 2.1 of the License, or (at your option) any later version. |
9 | |
10 | The GNU C Library is distributed in the hope that it will be useful, |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
13 | Lesser General Public License for more details. |
14 | |
15 | You should have received a copy of the GNU Lesser General Public |
16 | License along with the GNU C Library; if not, see |
17 | <http://www.gnu.org/licenses/>. */ |
18 | |
19 | #include <support/check_nss.h> |
20 | |
21 | #include <stdio.h> |
22 | #include <stdlib.h> |
23 | #include <support/check.h> |
24 | #include <support/format_nss.h> |
25 | #include <support/run_diff.h> |
26 | |
27 | void |
28 | check_dns_packet (const char *query_description, |
29 | const unsigned char *buffer, size_t length, |
30 | const char *expected) |
31 | { |
32 | char *formatted = support_format_dns_packet (buffer, length); |
33 | if (strcmp (formatted, expected) != 0) |
34 | { |
35 | support_record_failure (); |
36 | printf ("error: packet comparison failure\n" ); |
37 | if (query_description != NULL) |
38 | printf ("query: %s\n" , query_description); |
39 | support_run_diff ("expected" , expected, "actual" , formatted); |
40 | } |
41 | free (formatted); |
42 | } |
43 | |