1*86d7f5d3SJohn Marino /*-
2*86d7f5d3SJohn Marino * Copyright (c) 2002 Kyle Martin <mkm@ieee.org>
3*86d7f5d3SJohn Marino * All rights reserved.
4*86d7f5d3SJohn Marino *
5*86d7f5d3SJohn Marino * Redistribution and use in source and binary forms, with or without
6*86d7f5d3SJohn Marino * modification, are permitted provided that the following conditions
7*86d7f5d3SJohn Marino * are met:
8*86d7f5d3SJohn Marino * 1. Redistributions of source code must retain the above copyright
9*86d7f5d3SJohn Marino * notice, this list of conditions and the following disclaimer.
10*86d7f5d3SJohn Marino * 2. Redistributions in binary form must reproduce the above copyright
11*86d7f5d3SJohn Marino * notice, this list of conditions and the following disclaimer in the
12*86d7f5d3SJohn Marino * documentation and/or other materials provided with the distribution.
13*86d7f5d3SJohn Marino *
14*86d7f5d3SJohn Marino * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15*86d7f5d3SJohn Marino * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16*86d7f5d3SJohn Marino * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17*86d7f5d3SJohn Marino * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18*86d7f5d3SJohn Marino * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19*86d7f5d3SJohn Marino * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20*86d7f5d3SJohn Marino * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21*86d7f5d3SJohn Marino * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22*86d7f5d3SJohn Marino * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23*86d7f5d3SJohn Marino * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24*86d7f5d3SJohn Marino * SUCH DAMAGE.
25*86d7f5d3SJohn Marino *
26*86d7f5d3SJohn Marino * $FreeBSD: src/lib/libc/gen/ulimit.c,v 1.3 2003/01/04 01:11:49 tjr Exp $
27*86d7f5d3SJohn Marino * $DragonFly: src/lib/libc/gen/ulimit.c,v 1.1 2004/06/06 13:32:27 hmp Exp $
28*86d7f5d3SJohn Marino */
29*86d7f5d3SJohn Marino
30*86d7f5d3SJohn Marino #include <sys/types.h>
31*86d7f5d3SJohn Marino #include <sys/time.h>
32*86d7f5d3SJohn Marino #include <sys/resource.h>
33*86d7f5d3SJohn Marino
34*86d7f5d3SJohn Marino #include <errno.h>
35*86d7f5d3SJohn Marino #include <limits.h>
36*86d7f5d3SJohn Marino #include <stdarg.h>
37*86d7f5d3SJohn Marino #include <ulimit.h>
38*86d7f5d3SJohn Marino
39*86d7f5d3SJohn Marino long
ulimit(int cmd,...)40*86d7f5d3SJohn Marino ulimit(int cmd, ...)
41*86d7f5d3SJohn Marino {
42*86d7f5d3SJohn Marino struct rlimit limit;
43*86d7f5d3SJohn Marino va_list ap;
44*86d7f5d3SJohn Marino long arg;
45*86d7f5d3SJohn Marino
46*86d7f5d3SJohn Marino if (cmd == UL_GETFSIZE) {
47*86d7f5d3SJohn Marino if (getrlimit(RLIMIT_FSIZE, &limit) == -1)
48*86d7f5d3SJohn Marino return (-1);
49*86d7f5d3SJohn Marino limit.rlim_cur /= 512;
50*86d7f5d3SJohn Marino if (limit.rlim_cur > LONG_MAX)
51*86d7f5d3SJohn Marino return (LONG_MAX);
52*86d7f5d3SJohn Marino return ((long)limit.rlim_cur);
53*86d7f5d3SJohn Marino } else if (cmd == UL_SETFSIZE) {
54*86d7f5d3SJohn Marino va_start(ap, cmd);
55*86d7f5d3SJohn Marino arg = va_arg(ap, long);
56*86d7f5d3SJohn Marino va_end(ap);
57*86d7f5d3SJohn Marino limit.rlim_max = limit.rlim_cur = (rlim_t)arg * 512;
58*86d7f5d3SJohn Marino
59*86d7f5d3SJohn Marino /* The setrlimit() function sets errno to EPERM if needed. */
60*86d7f5d3SJohn Marino if (setrlimit(RLIMIT_FSIZE, &limit) == -1)
61*86d7f5d3SJohn Marino return (-1);
62*86d7f5d3SJohn Marino if (arg * 512 > LONG_MAX)
63*86d7f5d3SJohn Marino return (LONG_MAX);
64*86d7f5d3SJohn Marino return (arg);
65*86d7f5d3SJohn Marino } else {
66*86d7f5d3SJohn Marino errno = EINVAL;
67*86d7f5d3SJohn Marino return (-1);
68*86d7f5d3SJohn Marino }
69*86d7f5d3SJohn Marino }
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