FreeBSD/Linux Kernel Cross Reference
sys/compat/common/kern_resource_43.c

     /*      $NetBSD: kern_resource_43.c,v 1.21 2007/12/20 23:02:44 dsl Exp $        */
     
     /*-
      * Copyright (c) 1982, 1986, 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. 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_resource.c     8.5 (Berkeley) 1/21/94
     */
    
    #include <sys/cdefs.h>
    __KERNEL_RCSID(0, "$NetBSD: kern_resource_43.c,v 1.21 2007/12/20 23:02:44 dsl Exp $");
    
    #include <sys/param.h>
    #include <sys/systm.h>
    #include <sys/kernel.h>
    #include <sys/file.h>
    #include <sys/resourcevar.h>
    #include <sys/proc.h>
    
    #include <sys/mount.h>
    #include <sys/syscallargs.h>
    
    /* ARGSUSED */
    int
    compat_43_sys_getrlimit(struct lwp *l, const struct compat_43_sys_getrlimit_args *uap, register_t *retval)
    {
            /* {
                    syscallarg(int) which;
                    syscallarg(struct orlimit *) rlp;
            } */
            struct proc *p = l->l_proc;
            int which = SCARG(uap, which);
            struct orlimit olim;
    
            if ((u_int)which >= RLIM_NLIMITS)
                    return (EINVAL);
            olim.rlim_cur = p->p_rlimit[which].rlim_cur;
            if (olim.rlim_cur == -1)
                    olim.rlim_cur = 0x7fffffff;
            olim.rlim_max = p->p_rlimit[which].rlim_max;
            if (olim.rlim_max == -1)
                    olim.rlim_max = 0x7fffffff;
            return copyout(&olim, SCARG(uap, rlp), sizeof(olim));
    }
    
    /* ARGSUSED */
    int
    compat_43_sys_setrlimit(struct lwp *l, const struct compat_43_sys_setrlimit_args *uap, register_t *retval)
    {
            /* {
                    syscallarg(int) which;
                    syscallarg(const struct orlimit *) rlp;
            } */
            int which = SCARG(uap, which);
            struct orlimit olim;
            struct rlimit lim;
            int error;
    
            error = copyin(SCARG(uap, rlp), &olim, sizeof(struct orlimit));
            if (error)
                    return (error);
            lim.rlim_cur = olim.rlim_cur;
            lim.rlim_max = olim.rlim_max;
            return (dosetrlimit(l, l->l_proc, which, &lim));
    }

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