1 /* $NetBSD: kern_resource_43.c,v 1.21 2007/12/20 23:02:44 dsl Exp $ */
2
3 /*-
4 * Copyright (c) 1982, 1986, 1991, 1993
5 * The Regents of the University of California. All rights reserved.
6 * (c) UNIX System Laboratories, Inc.
7 * All or some portions of this file are derived from material licensed
8 * to the University of California by American Telephone and Telegraph
9 * Co. or Unix System Laboratories, Inc. and are reproduced herein with
10 * the permission of UNIX System Laboratories, Inc.
11 *
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
14 * are met:
15 * 1. Redistributions of source code must retain the above copyright
16 * notice, this list of conditions and the following disclaimer.
17 * 2. Redistributions in binary form must reproduce the above copyright
18 * notice, this list of conditions and the following disclaimer in the
19 * documentation and/or other materials provided with the distribution.
20 * 3. Neither the name of the University nor the names of its contributors
21 * may be used to endorse or promote products derived from this software
22 * without specific prior written permission.
23 *
24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 * SUCH DAMAGE.
35 *
36 * @(#)kern_resource.c 8.5 (Berkeley) 1/21/94
37 */
38
39 #include <sys/cdefs.h>
40 __KERNEL_RCSID(0, "$NetBSD: kern_resource_43.c,v 1.21 2007/12/20 23:02:44 dsl Exp $");
41
42 #include <sys/param.h>
43 #include <sys/systm.h>
44 #include <sys/kernel.h>
45 #include <sys/file.h>
46 #include <sys/resourcevar.h>
47 #include <sys/proc.h>
48
49 #include <sys/mount.h>
50 #include <sys/syscallargs.h>
51
52 /* ARGSUSED */
53 int
compat_43_sys_getrlimit(struct lwp * l,const struct compat_43_sys_getrlimit_args * uap,register_t * retval)54 compat_43_sys_getrlimit(struct lwp *l, const struct compat_43_sys_getrlimit_args *uap, register_t *retval)
55 {
56 /* {
57 syscallarg(int) which;
58 syscallarg(struct orlimit *) rlp;
59 } */
60 struct proc *p = l->l_proc;
61 int which = SCARG(uap, which);
62 struct orlimit olim;
63
64 if ((u_int)which >= RLIM_NLIMITS)
65 return (EINVAL);
66 olim.rlim_cur = p->p_rlimit[which].rlim_cur;
67 if (olim.rlim_cur == -1)
68 olim.rlim_cur = 0x7fffffff;
69 olim.rlim_max = p->p_rlimit[which].rlim_max;
70 if (olim.rlim_max == -1)
71 olim.rlim_max = 0x7fffffff;
72 return copyout(&olim, SCARG(uap, rlp), sizeof(olim));
73 }
74
75 /* ARGSUSED */
76 int
compat_43_sys_setrlimit(struct lwp * l,const struct compat_43_sys_setrlimit_args * uap,register_t * retval)77 compat_43_sys_setrlimit(struct lwp *l, const struct compat_43_sys_setrlimit_args *uap, register_t *retval)
78 {
79 /* {
80 syscallarg(int) which;
81 syscallarg(const struct orlimit *) rlp;
82 } */
83 int which = SCARG(uap, which);
84 struct orlimit olim;
85 struct rlimit lim;
86 int error;
87
88 error = copyin(SCARG(uap, rlp), &olim, sizeof(struct orlimit));
89 if (error)
90 return (error);
91 lim.rlim_cur = olim.rlim_cur;
92 lim.rlim_max = olim.rlim_max;
93 return (dosetrlimit(l, l->l_proc, which, &lim));
94 }
95