| /*- |
| * Copyright (c) 1992, 1993 |
| * 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. 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. |
| * |
| * @(#)bpf_compat.h 8.1 (Berkeley) 6/10/93 |
| * $FreeBSD: src/sys/net/bpf_compat.h,v 1.8 2000/12/27 22:20:13 bmilekic Exp $ |
| */ |
| |
| #ifndef _NET_BPF_COMPAT_H_ |
| #define _NET_BPF_COMPAT_H_ |
| |
| /* |
| * Some hacks for compatibility across SunOS and 4.4BSD. We emulate malloc |
| * and free with mbuf clusters. We store a pointer to the mbuf in the first |
| * word of the mbuf and return 8 bytes passed the start of data (for double |
| * word alignment). We cannot just use offsets because clusters are not at |
| * a fixed offset from the associated mbuf. Sorry for this kludge. |
| */ |
| #define malloc(size, type, canwait) bpf_alloc(size, canwait) |
| #define free(cp, type) m_free(*(struct mbuf **)(cp - 8)) |
| #define M_WAITOK M_TRYWAIT |
| #define M_NOWAIT M_DONTWAIT |
| |
| /* This mapping works for our purposes. */ |
| #define ERESTART EINTR |
| |
| #endif |
