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/* $OpenBSD: kern_prot_43.c,v 1.3 2002/10/30 20:07:41 millert Exp $ */
/* $NetBSD: kern_prot_43.c,v 1.3 1995/10/07 06:26:27 mycroft Exp $ */
/*
* Copyright (c) 1982, 1986, 1989, 1990, 1991, 1993
* The Regents of the University of California. All rights reserved.
* (c) UNIX System Laboratories, Inc.
* All or some portions of this file are derived from material licensed
* to the University of California by American Telephone and Telegraph
* Co. or Unix System Laboratories, Inc. and are reproduced herein with
* the permission of UNIX System Laboratories, Inc.
*
* 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.
*
* @(#)kern_prot.c 8.6 (Berkeley) 1/21/94
*/
#include <sys/param.h>
#include <sys/acct.h>
#include <sys/systm.h>
#include <sys/ucred.h>
#include <sys/proc.h>
#include <sys/timeb.h>
#include <sys/times.h>
#include <sys/malloc.h>
#include <sys/mount.h>
#include <sys/syscallargs.h>
/* ARGSUSED */
int
compat_43_sys_setregid(p, v, retval)
register struct proc *p;
void *v;
register_t *retval;
{
struct compat_43_sys_setregid_args /* {
syscallarg(gid_t) rgid;
syscallarg(gid_t) egid;
} */ *uap = v;
struct pcred *pc = p->p_cred;
struct sys_setresgid_args sresgidargs;
gid_t rgid, egid, sgid;
rgid = SCARG(uap, rgid);
egid = SCARG(uap, egid);
/*
* The saved gid presents a bit of a dilemma, as it did not
* appear in 4.3BSD. We only set the saved gid when the real
* gid is specified and either its value would change, or,
* where the saved and effective gids are different.
*/
if (rgid != (gid_t)-1 && (rgid != pc->p_rgid ||
pc->p_svgid != (egid != (gid_t)-1 ? egid : pc->pc_ucred->cr_gid)))
sgid = rgid;
else
sgid = (gid_t)-1;
SCARG(&sresgidargs, rgid) = rgid;
SCARG(&sresgidargs, egid) = egid;
SCARG(&sresgidargs, egid) = sgid;
return (sys_setresgid(p, &sresgidargs, retval));
}
/* ARGSUSED */
int
compat_43_sys_setreuid(p, v, retval)
register struct proc *p;
void *v;
register_t *retval;
{
struct compat_43_sys_setreuid_args /* {
syscallarg(uid_t) ruid;
syscallarg(uid_t) euid;
} */ *uap = v;
struct pcred *pc = p->p_cred;
struct sys_setresuid_args sresuidargs;
uid_t ruid, euid, suid;
ruid = SCARG(uap, ruid);
euid = SCARG(uap, euid);
/*
* The saved uid presents a bit of a dilemma, as it did not
* appear in 4.3BSD. We only set the saved uid when the real
* uid is specified and either its value would change, or,
* where the saved and effective uids are different.
*/
if (ruid != (uid_t)-1 && (ruid != pc->p_ruid ||
pc->p_svuid != (euid != (uid_t)-1 ? euid : pc->pc_ucred->cr_uid)))
suid = ruid;
else
suid = (uid_t)-1;
SCARG(&sresuidargs, ruid) = ruid;
SCARG(&sresuidargs, euid) = euid;
SCARG(&sresuidargs, euid) = suid;
return (sys_setresuid(p, &sresuidargs, retval));
}
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