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44 lines
1.5 KiB
C
44 lines
1.5 KiB
C
/* Check that a DNS packet buffer has the expected contents.
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Copyright (C) 2016-2023 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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#include <support/check_nss.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <support/check.h>
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#include <support/format_nss.h>
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#include <support/run_diff.h>
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void
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check_dns_packet (const char *query_description,
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const unsigned char *buffer, size_t length,
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const char *expected)
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{
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char *formatted = support_format_dns_packet (buffer, length);
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if (strcmp (formatted, expected) != 0)
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{
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support_record_failure ();
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printf ("error: packet comparison failure\n");
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if (query_description != NULL)
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printf ("query: %s\n", query_description);
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support_run_diff ("expected", expected, "actual", formatted);
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}
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free (formatted);
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}
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