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pimdd-dense 0.2.1.0_2

/*
 * Copyright (c) 1993, 1998 by the University of Southern California
 * All rights reserved.
 *
 * Permission to use, copy, modify, and distribute this software and its
 * documentation in source and binary forms for lawful purposes
 * and without fee is hereby granted, provided that the above copyright
 * notice appear in all copies and that both the copyright notice and
 * this permission notice appear in supporting documentation. and that
 * any documentation, advertising materials, and other materials related
 * to such distribution and use acknowledge that the software was
 * developed by the University of Southern California, Information
 * Sciences Institute.  The name of the University may not be used to
 * endorse or promote products derived from this software without
 * specific prior written permission.
 *
 * THE UNIVERSITY OF SOUTHERN CALIFORNIA makes no representations about
 * the suitability of this software for any purpose.  THIS SOFTWARE IS
 * PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES,
 * INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 *
 * Other copyrights might apply to parts of this software and are so
 * noted when applicable.
 */

/* RSRR things that are only needed by mrouted. */

/* Cache of Route Query messages, distinguished by source,
 * destination, and client addresses.  Cache is flushed by RSRR client
 * -- it sends notification when an unwanted Route Reply is received.
 * Since this only happens during route changes, it is more likely
 * that the cache will be flushed when the kernel table entry is
 * deleted.  */
struct rsrr_cache {
    struct rsrr_rq route_query;		/* Cached Route Query */
    struct sockaddr_un client_addr;	/* Client address     */
    int client_length;			/* Length of client   */
    struct rsrr_cache *next;		/* next cache item    */
};