sys/compat/common/kern_resource_43.c

   1 /*      $NetBSD: kern_resource_43.c,v 1.20 2007/05/12 21:07:02 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 1.20 2007/05/12 21:07:02 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 }