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/* $OpenBSD: compat_util.h,v 1.4 2000/07/27 18:32:35 ericj Exp $ */
/* $NetBSD: compat_util.h,v 1.1 1995/06/24 20:16:05 christos Exp $ */
/*
* Copyright (c) 1994 Christos Zoulas
* Copyright (c) 1995 Frank van der Linden
* 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. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
*
*/
#ifndef _COMPAT_UTIL_H_
#define _COMPAT_UTIL_H_
#include <vm/vm.h>
#include <vm/vm_param.h>
#include <sys/exec.h>
struct emul;
/* struct proc; */
caddr_t stackgap_init __P((struct emul *));
void *stackgap_alloc __P((caddr_t *, size_t));
struct emul_flags_xtab {
unsigned long omask;
unsigned long oval;
unsigned long nval;
};
int emul_find __P((struct proc *, caddr_t *, const char *, char *,
char **, int));
unsigned long emul_flags_translate(const struct emul_flags_xtab *tab,
unsigned long in, unsigned long *leftover);
#define CHECK_ALT_EXIST(p, sgp, root, path) \
emul_find(p, sgp, root, path, &(path), 0)
#define CHECK_ALT_CREAT(p, sgp, root, path) \
emul_find(p, sgp, root, path, &(path), 1)
#endif /* !_COMPAT_UTIL_H_ */
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