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/* Check that a DNS packet buffer has the expected contents.
Copyright (C) 2016-2021 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 <support/check_nss.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <support/check.h>
#include <support/format_nss.h>
#include <support/run_diff.h>
void
check_dns_packet (const char *query_description,
const unsigned char *buffer, size_t length,
const char *expected)
{
char *formatted = support_format_dns_packet (buffer, length);
if (strcmp (formatted, expected) != 0)
{
support_record_failure ();
printf ("error: packet comparison failure\n");
if (query_description != NULL)
printf ("query: %s\n", query_description);
support_run_diff ("expected", expected, "actual", formatted);
}
free (formatted);
}
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