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132 lines
3.6 KiB
C
132 lines
3.6 KiB
C
/*
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* Copyright (c) 1999 Adrian Chadd
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* Copyright (c) 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* Jan-Simon Pendry.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)procfs_status.c 8.4 (Berkeley) 6/15/94
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*
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* $Id: procfs_rlimit.c,v 1.1 1999/04/30 13:04:21 phk Exp $
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*/
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/*
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* To get resource.h to include our rlimit_ident[] array of rlimit identifiers
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*/
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#define _RLIMIT_IDENT
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/proc.h>
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#include <sys/vnode.h>
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#include <sys/tty.h>
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#include <sys/resourcevar.h>
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#include <sys/resource.h>
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#include <sys/types.h>
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#include <miscfs/procfs/procfs.h>
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int
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procfs_dorlimit(curp, p, pfs, uio)
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struct proc *curp;
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struct proc *p;
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struct pfsnode *pfs;
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struct uio *uio;
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{
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char *ps;
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int i;
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int xlen;
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int error;
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char psbuf[512]; /* XXX - conservative */
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if (uio->uio_rw != UIO_READ)
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return (EOPNOTSUPP);
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ps = psbuf;
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for (i = 0; i < RLIM_NLIMITS; i++) {
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/*
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* Add the rlimit ident
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*/
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ps += sprintf(ps, "%s ", rlimit_ident[i]);
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/*
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* Replace RLIM_INFINITY with -1 in the string
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*/
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/*
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* current limit
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*/
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if (p->p_rlimit[i].rlim_cur == RLIM_INFINITY) {
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ps += sprintf(ps, "-1 ");
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} else {
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/* quad_t is a long on the Alpha, sigh.. */
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ps += sprintf(ps, "%qu ",
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(unsigned long long)p->p_rlimit[i].rlim_cur);
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}
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/*
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* maximum limit
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*/
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if (p->p_rlimit[i].rlim_max == RLIM_INFINITY) {
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ps += sprintf(ps, "-1\n");
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} else {
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/* quad_t is a long on the Alpha, sigh.. */
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ps += sprintf(ps, "%qu\n",
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(unsigned long long)p->p_rlimit[i].rlim_max);
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}
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}
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/*
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* This logic is rather tasty - but its from procfs_status.c, so
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* I guess I'll use it here.
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*/
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xlen = ps - psbuf;
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xlen -= uio->uio_offset;
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ps = psbuf + uio->uio_offset;
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xlen = imin(xlen, uio->uio_resid);
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if (xlen <= 0)
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error = 0;
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else
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error = uiomove(ps, xlen, uio);
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return (error);
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}
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