NetBSD/sys/compat/freebsd/freebsd_misc.c

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/* $NetBSD: freebsd_misc.c,v 1.4 1998/05/02 18:14:06 christos Exp $ */
/*
* 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. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed for the NetBSD Project
* by Frank van der Linden
* 4. 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.
*/
/*
* FreeBSD compatibility module. Try to deal with various FreeBSD system calls.
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/proc.h>
#include <sys/mount.h>
#include <sys/syscallargs.h>
#include <compat/freebsd/freebsd_syscallargs.h>
#include <compat/freebsd/freebsd_util.h>
#include <compat/freebsd/freebsd_rtprio.h>
#include <compat/freebsd/freebsd_timex.h>
int
freebsd_sys_msync(p, v, retval)
struct proc *p;
void *v;
register_t *retval;
{
struct freebsd_sys_msync_args /* {
syscallarg(caddr_t) addr;
syscallarg(size_t) len;
syscallarg(int) flags;
} */ *uap = v;
struct sys___msync13_args bma;
/*
* FreeBSD-2.0-RELEASE's msync(2) is compatible with NetBSD's.
* FreeBSD-2.0.5-RELEASE's msync(2) has addtional argument `flags',
* but syscall number is not changed. :-<
*/
SCARG(&bma, addr) = SCARG(uap, addr);
SCARG(&bma, len) = SCARG(uap, len);
SCARG(&bma, flags) = SCARG(uap, flags);
return sys___msync13(p, &bma, retval);
}
/* just a place holder */
int
freebsd_sys_rtprio(p, v, retval)
struct proc *p;
void *v;
register_t *retval;
{
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#ifdef notyet
struct freebsd_sys_rtprio_args /* {
syscallarg(int) function;
syscallarg(pid_t) pid;
syscallarg(struct freebsd_rtprio *) rtp;
} */ *uap = v;
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#endif
return ENOSYS; /* XXX */
}
int
freebsd_ntp_adjtime(p, v, retval)
struct proc *p;
void *v;
register_t *retval;
{
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#ifdef notyet
struct freebsd_ntp_adjtime_args /* {
syscallarg(struct freebsd_timex *) tp;
} */ *uap = v;
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#endif
return ENOSYS; /* XXX */
}
int
freebsd_sys_issetugid(p, v, retval)
struct proc *p;
void *v;
register_t *retval;
{
/*
* Note: OpenBSD sets a P_SUGIDEXEC flag set at execve() time,
* we use P_SUGID because we consider changing the owners as
* "tainting" as well.
* This is significant for procs that start as root and "become"
* a user without an exec - programs cannot know *everything*
* that libc *might* have put in their data segment.
*/
*retval = (p->p_flag & P_SUGID) != 0;
return 0;
}