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kern_resource_43.c revision 1.10 
      1 /*	$NetBSD: kern_resource_43.c,v 1.10 2003/01/18 07:28:34 thorpej 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. All advertising materials mentioning features or use of this software
     21  *    must display the following acknowledgement:
     22  *	This product includes software developed by the University of
     23  *	California, Berkeley and its contributors.
     24  * 4. Neither the name of the University nor the names of its contributors
     25  *    may be used to endorse or promote products derived from this software
     26  *    without specific prior written permission.
     27  *
     28  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     29  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     30  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     31  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     32  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     33  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     34  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     35  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     36  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     37  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     38  * SUCH DAMAGE.
     39  *
     40  *	@(#)kern_resource.c	8.5 (Berkeley) 1/21/94
     41  */
     42 
     43 #include <sys/cdefs.h>
     44 __KERNEL_RCSID(0, "$NetBSD: kern_resource_43.c,v 1.10 2003/01/18 07:28:34 thorpej Exp $");
     45 
     46 #include <sys/param.h>
     47 #include <sys/systm.h>
     48 #include <sys/kernel.h>
     49 #include <sys/file.h>
     50 #include <sys/resourcevar.h>
     51 #include <sys/malloc.h>
     52 #include <sys/proc.h>
     53 
     54 #include <sys/mount.h>
     55 #include <sys/sa.h>
     56 #include <sys/syscallargs.h>
     57 
     58 /* ARGSUSED */
     59 int
     60 compat_43_sys_getrlimit(struct lwp *l, void *v, register_t *retval)
     61 {
     62 	struct compat_43_sys_getrlimit_args /* {
     63 		syscallarg(int) which;
     64 		syscallarg(struct orlimit *) rlp;
     65 	} */ *uap = v;
     66 	struct proc *p = l->l_proc;
     67 	int which = SCARG(uap, which);
     68 	struct orlimit olim;
     69 
     70 	if ((u_int)which >= RLIM_NLIMITS)
     71 		return (EINVAL);
     72 	olim.rlim_cur = p->p_rlimit[which].rlim_cur;
     73 	if (olim.rlim_cur == -1)
     74 		olim.rlim_cur = 0x7fffffff;
     75 	olim.rlim_max = p->p_rlimit[which].rlim_max;
     76 	if (olim.rlim_max == -1)
     77 		olim.rlim_max = 0x7fffffff;
     78 	return (copyout((caddr_t)&olim, (caddr_t)SCARG(uap, rlp),
     79 	    sizeof(olim)));
     80 }
     81 
     82 /* ARGSUSED */
     83 int
     84 compat_43_sys_setrlimit(struct lwp *l, void *v, register_t *retval)
     85 {
     86 	struct compat_43_sys_setrlimit_args /* {
     87 		syscallarg(int) which;
     88 		syscallarg(const struct orlimit *) rlp;
     89 	} */ *uap = v;
     90 	struct proc *p = l->l_proc;
     91 	int which = SCARG(uap, which);
     92 	struct orlimit olim;
     93 	struct rlimit lim;
     94 	int error;
     95 
     96 	error = copyin((caddr_t)SCARG(uap, rlp), (caddr_t)&olim,
     97 	    sizeof (struct orlimit));
     98 	if (error)
     99 		return (error);
    100 	lim.rlim_cur = olim.rlim_cur;
    101 	lim.rlim_max = olim.rlim_max;
    102 	return (dosetrlimit(p, p->p_cred, which, &lim));
    103 }
    104