1/*-
2 * Copyright (c) 2002 Kyle Martin <mkm@ieee.org>
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: src/lib/libc/gen/ulimit.c,v 1.3 2003/01/04 01:11:49 tjr Exp $
27 */
28
29#include <sys/types.h>
30#include <sys/time.h>
31#include <sys/resource.h>
32
33#include <errno.h>
34#include <limits.h>
35#include <stdarg.h>
36#include <ulimit.h>
37
38long
39ulimit(int cmd, ...)
40{
41	struct rlimit limit;
42	va_list ap;
43	long arg;
44
45	if (cmd == UL_GETFSIZE) {
46		if (getrlimit(RLIMIT_FSIZE, &limit) == -1)
47			return (-1);
48		limit.rlim_cur /= 512;
49		if (limit.rlim_cur > LONG_MAX)
50			return (LONG_MAX);
51		return ((long)limit.rlim_cur);
52	} else if (cmd == UL_SETFSIZE) {
53		va_start(ap, cmd);
54		arg = va_arg(ap, long);
55		va_end(ap);
56		limit.rlim_max = limit.rlim_cur = (rlim_t)arg * 512;
57
58		/* The setrlimit() function sets errno to EPERM if needed. */
59		if (setrlimit(RLIMIT_FSIZE, &limit) == -1)
60			return (-1);
61		if (arg * 512 > LONG_MAX)
62			return (LONG_MAX);
63		return (arg);
64	} else {
65		errno = EINVAL;
66		return (-1);
67	}
68}
69