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/*
* Copyright (c) 1999 Adrian Chadd
* Copyright (c) 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Jan-Simon Pendry.
*
* 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. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. 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.
*
* @(#)procfs_status.c 8.4 (Berkeley) 6/15/94
*
* $Id: procfs_status.c,v 1.12 1999/01/05 03:53:06 peter Exp $
*/
/*
* To get resource.h to include our rlimit_ident[] array of rlimit identifiers
*/
#define _RLIMIT_IDENT
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/proc.h>
#include <sys/vnode.h>
#include <sys/tty.h>
#include <sys/resourcevar.h>
#include <sys/resource.h>
#include <sys/types.h>
#include <miscfs/procfs/procfs.h>
/*
* This converts a quad_t to a string, stored in fin
* It is here because there doesn't exist a quad_t entry in the kernel
* printf() library.
*/
static void quadtostring (char *fin, quad_t num)
{
char str[128];
char *cp;
int i, n;
cp = str;
i = 0;
/*
* Create the number string.
* The string will be in reverse from the original number.
*/
while (num) {
*(cp++) = (num % 10) + '0';
num /= 10;
i++;
}
/* Null terminate */
*cp = '\0';
/*
* Now, swap the order
*/
for (n = 0; n < i; n++) {
fin[n] = str[(i-1)-n];
}
/* Null terminate */
fin[n] = '\0';
return;
}
int
procfs_dorlimit(curp, p, pfs, uio)
struct proc *curp;
struct proc *p;
struct pfsnode *pfs;
struct uio *uio;
{
char *ps;
int i;
int xlen;
int error;
char psbuf[512]; /* XXX - conservative */
char qstr[64];
if (uio->uio_rw != UIO_READ)
return (EOPNOTSUPP);
ps = psbuf;
for (i = 0; i < RLIM_NLIMITS; i++) {
/*
* Add the rlimit ident
*/
ps += sprintf(ps, "%s ", rlimit_ident[i]);
/*
* Replace RLIM_INFINITY with -1 in the string
*/
/*
* current limit
*/
if (p->p_rlimit[i].rlim_cur == RLIM_INFINITY) {
ps += sprintf(ps, "-1 ");
} else {
quadtostring(qstr, p->p_rlimit[i].rlim_cur);
ps += sprintf(ps, "%s ", qstr);
}
/*
* maximum limit
*/
if (p->p_rlimit[i].rlim_max == RLIM_INFINITY) {
ps += sprintf(ps, "-1\n");
} else {
quadtostring(qstr, p->p_rlimit[i].rlim_max);
ps += sprintf(ps, "%s\n", qstr);
}
}
/*
* This logic is rather tasty - but its from procfs_status.c, so
* I guess I'll use it here.
*/
xlen = ps - psbuf;
xlen -= uio->uio_offset;
ps = psbuf + uio->uio_offset;
xlen = imin(xlen, uio->uio_resid);
if (xlen <= 0)
error = 0;
else
error = uiomove(ps, xlen, uio);
return (error);
}
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