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[/] [openrisc/] [trunk/] [gnu-src/] [newlib-1.18.0/] [newlib/] [libc/] [sys/] [linux/] [include/] [net/] [bpf_compat.h] - Blame information for rev 207

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1 207 jeremybenn
/*-
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 * Copyright (c) 1992, 1993
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 *      The Regents of the University of California.  All rights reserved.
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 *
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 * Redistribution and use in source and binary forms, with or without
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 * modification, are permitted provided that the following conditions
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 * are met:
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 * 1. Redistributions of source code must retain the above copyright
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 *    notice, this list of conditions and the following disclaimer.
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 * 2. Redistributions in binary form must reproduce the above copyright
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 *    notice, this list of conditions and the following disclaimer in the
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 *    documentation and/or other materials provided with the distribution.
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 * 3. All advertising materials mentioning features or use of this software
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 *    must display the following acknowledgement:
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 *      This product includes software developed by the University of
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 *      California, Berkeley and its contributors.
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 * 4. Neither the name of the University nor the names of its contributors
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 *    may be used to endorse or promote products derived from this software
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 *    without specific prior written permission.
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 *
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 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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 * SUCH DAMAGE.
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 *
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 *      @(#)bpf_compat.h        8.1 (Berkeley) 6/10/93
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 * $FreeBSD: src/sys/net/bpf_compat.h,v 1.8 2000/12/27 22:20:13 bmilekic Exp $
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 */
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#ifndef _NET_BPF_COMPAT_H_
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#define _NET_BPF_COMPAT_H_
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/*
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 * Some hacks for compatibility across SunOS and 4.4BSD.  We emulate malloc
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 * and free with mbuf clusters.  We store a pointer to the mbuf in the first
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 * word of the mbuf and return 8 bytes passed the start of data (for double
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 * word alignment).  We cannot just use offsets because clusters are not at
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 * a fixed offset from the associated mbuf.  Sorry for this kludge.
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 */
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#define malloc(size, type, canwait) bpf_alloc(size, canwait)
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#define free(cp, type) m_free(*(struct mbuf **)(cp - 8))
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#define M_WAITOK M_TRYWAIT
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#define M_NOWAIT M_DONTWAIT
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/* This mapping works for our purposes. */
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#define ERESTART EINTR
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#endif

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