diff options
Diffstat (limited to 'newlib/libc/sys/linux/include/net/bpf_compat.h')
| -rw-r--r-- | newlib/libc/sys/linux/include/net/bpf_compat.h | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/newlib/libc/sys/linux/include/net/bpf_compat.h b/newlib/libc/sys/linux/include/net/bpf_compat.h new file mode 100644 index 000000000..31cd06904 --- /dev/null +++ b/newlib/libc/sys/linux/include/net/bpf_compat.h @@ -0,0 +1,55 @@ +/*- + * 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 |