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diff --git a/libs/watt32/netinet/igmp.h b/libs/watt32/netinet/igmp.h
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+/*!\file netinet/igmp.h
+ * Internet Group Managment Protocol.
+ */
+
+/*
+ * Copyright (c) 1988 Stephen Deering.
+ * Copyright (c) 1992, 1993
+ *      The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Stephen Deering of Stanford University.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *      This product includes software developed by the University of
+ *      California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *      @(#)igmp.h      8.1 (Berkeley) 6/10/93
+ *      $Id: igmp.h,v 1.7 1996/03/14 16:59:17 fenner Exp $
+ */
+
+#ifndef __NETINET_IGMP_H
+#define __NETINET_IGMP_H
+
+/*
+ * Internet Group Management Protocol (IGMP) definitions.
+ *
+ * Written by Steve Deering, Stanford, May 1988.
+ *
+ * MULTICAST Revision: 3.5.1.2
+ */
+
+/*
+ * IGMP packet format.
+ */
+
+#include <sys/packon.h>
+
+struct igmp {
+        u_char          igmp_type;      /* version & type of IGMP message  */
+        u_char          igmp_code;      /* subtype for routing msgs        */
+        u_short         igmp_cksum;     /* IP-style checksum               */
+        struct in_addr  igmp_group;     /* group address being reported    */
+};                                      /*  (zero for queries)             */
+
+#include <sys/packoff.h>
+
+#define IGMP_MINLEN                  8
+
+/*
+ * Message types, including version number.
+ */
+#define IGMP_MEMBERSHIP_QUERY           0x11    /* membership query         */
+#define IGMP_V1_MEMBERSHIP_REPORT       0x12    /* Ver. 1 membership report */
+#define IGMP_V2_MEMBERSHIP_REPORT       0x16    /* Ver. 2 membership report */
+#define IGMP_V2_LEAVE_GROUP             0x17    /* Leave-group message      */
+
+#define IGMP_DVMRP                      0x13    /* DVMRP routing message    */
+#define IGMP_PIM                        0x14    /* PIM routing message      */
+
+#define IGMP_MTRACE_RESP                0x1e  /* traceroute resp.(to sender)*/
+#define IGMP_MTRACE                     0x1f  /* mcast traceroute messages  */
+
+#define IGMP_MAX_HOST_REPORT_DELAY   10    /* max delay for response to     */
+                                           /*  query (in seconds) according */
+                                           /*  to RFC1112                   */
+
+
+#define IGMP_TIMER_SCALE     10         /* denotes that the igmp code field */
+                                        /* specifies time in 10th of seconds*/
+
+/*
+ * The following four defininitions are for backwards compatibility.
+ * They should be removed as soon as all applications are updated to
+ * use the new constant names.
+ */
+#define IGMP_HOST_MEMBERSHIP_QUERY      IGMP_MEMBERSHIP_QUERY
+#define IGMP_HOST_MEMBERSHIP_REPORT     IGMP_V1_MEMBERSHIP_REPORT
+#define IGMP_HOST_NEW_MEMBERSHIP_REPORT IGMP_V2_MEMBERSHIP_REPORT
+#define IGMP_HOST_LEAVE_MESSAGE         IGMP_V2_LEAVE_GROUP
+
+#endif