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      1 /* Copyright (C) 1991-1993,1995-1997,2004,2009 Free Software Foundation, Inc.
      2    This file is part of the GNU C Library.
      3 
      4    The GNU C Library is free software; you can redistribute it and/or
      5    modify it under the terms of the GNU Lesser General Public
      6    License as published by the Free Software Foundation; either
      7    version 2.1 of the License, or (at your option) any later version.
      8 
      9    The GNU C Library is distributed in the hope that it will be useful,
     10    but WITHOUT ANY WARRANTY; without even the implied warranty of
     11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     12    Lesser General Public License for more details.
     13 
     14    You should have received a copy of the GNU Lesser General Public
     15    License along with the GNU C Library; if not, write to the Free
     16    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
     17    02111-1307 USA.  */
     18 
     19 /*
     20  * Copyright (C) 1982, 1986 Regents of the University of California.
     21  * All rights reserved.
     22  *
     23  * Redistribution and use in source and binary forms, with or without
     24  * modification, are permitted provided that the following conditions
     25  * are met:
     26  * 1. Redistributions of source code must retain the above copyright
     27  *    notice, this list of conditions and the following disclaimer.
     28  * 2. Redistributions in binary form must reproduce the above copyright
     29  *    notice, this list of conditions and the following disclaimer in the
     30  *    documentation and/or other materials provided with the distribution.
     31  * 4. Neither the name of the University nor the names of its contributors
     32  *    may be used to endorse or promote products derived from this software
     33  *    without specific prior written permission.
     34  *
     35  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     36  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     37  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     38  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     39  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     40  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     41  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     42  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     43  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     44  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     45  * SUCH DAMAGE.
     46  */
     47 
     48 #ifndef __NETINET_UDP_H
     49 #define __NETINET_UDP_H    1
     50 
     51 #include <features.h>
     52 #include <sys/types.h>
     53 
     54 
     55 /* UDP header as specified by RFC 768, August 1980. */
     56 #ifdef __FAVOR_BSD
     57 
     58 struct udphdr
     59 {
     60   u_int16_t uh_sport;		/* source port */
     61   u_int16_t uh_dport;		/* destination port */
     62   u_int16_t uh_ulen;		/* udp length */
     63   u_int16_t uh_sum;		/* udp checksum */
     64 };
     65 
     66 #else
     67 
     68 struct udphdr
     69 {
     70   u_int16_t source;
     71   u_int16_t dest;
     72   u_int16_t len;
     73   u_int16_t check;
     74 };
     75 #endif
     76 
     77 /* UDP socket options */
     78 #define UDP_CORK	1	/* Never send partially complete segments.  */
     79 #define UDP_ENCAP	100	/* Set the socket to accept
     80 				   encapsulated packets.  */
     81 
     82 /* UDP encapsulation types */
     83 #define UDP_ENCAP_ESPINUDP_NON_IKE 1	/* draft-ietf-ipsec-nat-t-ike-00/01 */
     84 #define UDP_ENCAP_ESPINUDP	2	/* draft-ietf-ipsec-udp-encaps-06 */
     85 #define UDP_ENCAP_L2TPINUDP	3	/* rfc2661 */
     86 
     87 #define SOL_UDP            17      /* sockopt level for UDP */
     88 
     89 #endif /* netinet/udp.h */
     90