procstat_rlimit.c revision 227956 
1/*-
2 * Copyright (c) 2011 Mikolaj Golub
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
26 * $FreeBSD: head/usr.bin/procstat/procstat_rlimit.c 227956 2011-11-24 20:54:06Z trociny $
27 */
28
29#include <sys/param.h>
30#include <sys/time.h>
31#define _RLIMIT_IDENT
32#include <sys/resourcevar.h>
33#include <sys/sysctl.h>
34#include <sys/user.h>
35
36#include <err.h>
37#include <errno.h>
38#include <libprocstat.h>
39#include <limits.h>
40#include <stdio.h>
41#include <stdlib.h>
42#include <string.h>
43
44#include "procstat.h"
45
46static struct rlimit rlimit[RLIM_NLIMITS];
47
48void
49procstat_rlimit(struct kinfo_proc *kipp)
50{
51	int error, i, name[4];
52	size_t len;
53
54	if (!hflag)
55		printf("%5s %-16s %-10s %12s %12s\n", "PID", "COMM", "RLIMIT",
56		    "CURRENT", "MAX");
57	name[0] = CTL_KERN;
58	name[1] = KERN_PROC;
59	name[2] = KERN_PROC_RLIMIT;
60	name[3] = kipp->ki_pid;
61	len = sizeof(rlimit);
62	error = sysctl(name, 4, rlimit, &len, NULL, 0);
63	if (error < 0 && errno != ESRCH) {
64		warn("sysctl: kern.proc.rlimit: %d", kipp->ki_pid);
65		return;
66	}
67	if (error < 0 || len != sizeof(rlimit))
68		return;
69
70	for (i = 0; i < RLIM_NLIMITS; i++) {
71		printf("%5d %-16s %-10s %12jd %12jd\n", kipp->ki_pid,
72		    kipp->ki_comm, rlimit_ident[i],
73		    rlimit[i].rlim_cur == RLIM_INFINITY ?
74		    -1 : rlimit[i].rlim_cur,
75		    rlimit[i].rlim_max == RLIM_INFINITY ?
76		    -1 : rlimit[i].rlim_max);
77        }
78}
79