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- /*-
- * Copyright (c) 1990 The Regents of the University of California.
- * All rights reserved.
- *
- * 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. 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.
- *
- * from tahoe: in_cksum.c 1.2 86/01/05
- * from: Id: in_cksum.c,v 1.8 1995/12/03 18:35:19 bde Exp
- */
- #ifndef _MACHINE_IN_CKSUM_H_
- #define _MACHINE_IN_CKSUM_H_ 1
- #ifdef _KERNEL
- #define in_cksum(m, len) in_cksum_skip(m, len, 0)
- u_short in_addword(u_short sum, u_short b);
- u_short in_cksum_skip(struct mbuf *m, int len, int skip);
- u_int do_cksum(const void *, int);
- #if defined(IPVERSION) && (IPVERSION == 4)
- u_int in_cksum_hdr(const struct ip *);
- #endif
- u_short in_pseudo(u_int sum, u_int b, u_int c);
- #endif /* _KERNEL */
- #endif /* _MACHINE_IN_CKSUM_H_ */
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