1 * Copyright (c) 2015 IETF Trust and the persons identified
2 * as authors of the code.  All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with
5 * or without modification, are permitted provided that the
6 * following conditions are met:
7 *
8 * - Redistributions of source code must retain the above
9 *   copyright notice, this list of conditions and the
10 *   following disclaimer.
11 *
12 * - Redistributions in binary form must reproduce the above
13 *   copyright notice, this list of conditions and the
14 *   following disclaimer in the documentation and/or other
15 *   materials provided with the distribution.
16 *
17 * - Neither the name of Internet Society, IETF or IETF
18 *   Trust, nor the names of specific contributors, may be
19 *   used to endorse or promote products derived from this
20 *   software without specific prior written permission.
21 *
22 *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS
23 *   AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED
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27 *   EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
28 *   LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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32 *   INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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37