| 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 |
| 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 |
| 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 | |