186d7f5d3SJohn Marino /*-
286d7f5d3SJohn Marino * Copyright (c) 2002 Kyle Martin <mkm@ieee.org>
386d7f5d3SJohn Marino * All rights reserved.
486d7f5d3SJohn Marino *
586d7f5d3SJohn Marino * Redistribution and use in source and binary forms, with or without
686d7f5d3SJohn Marino * modification, are permitted provided that the following conditions
786d7f5d3SJohn Marino * are met:
886d7f5d3SJohn Marino * 1. Redistributions of source code must retain the above copyright
986d7f5d3SJohn Marino * notice, this list of conditions and the following disclaimer.
1086d7f5d3SJohn Marino * 2. Redistributions in binary form must reproduce the above copyright
1186d7f5d3SJohn Marino * notice, this list of conditions and the following disclaimer in the
1286d7f5d3SJohn Marino * documentation and/or other materials provided with the distribution.
1386d7f5d3SJohn Marino *
1486d7f5d3SJohn Marino * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
1586d7f5d3SJohn Marino * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
1686d7f5d3SJohn Marino * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
1786d7f5d3SJohn Marino * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
1886d7f5d3SJohn Marino * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
1986d7f5d3SJohn Marino * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
2086d7f5d3SJohn Marino * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
2186d7f5d3SJohn Marino * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
2286d7f5d3SJohn Marino * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
2386d7f5d3SJohn Marino * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
2486d7f5d3SJohn Marino * SUCH DAMAGE.
2586d7f5d3SJohn Marino *
2686d7f5d3SJohn Marino * $FreeBSD: src/lib/libc/gen/ulimit.c,v 1.3 2003/01/04 01:11:49 tjr Exp $
2786d7f5d3SJohn Marino * $DragonFly: src/lib/libc/gen/ulimit.c,v 1.1 2004/06/06 13:32:27 hmp Exp $
2886d7f5d3SJohn Marino */
2986d7f5d3SJohn Marino
3086d7f5d3SJohn Marino #include <sys/types.h>
3186d7f5d3SJohn Marino #include <sys/time.h>
3286d7f5d3SJohn Marino #include <sys/resource.h>
3386d7f5d3SJohn Marino
3486d7f5d3SJohn Marino #include <errno.h>
3586d7f5d3SJohn Marino #include <limits.h>
3686d7f5d3SJohn Marino #include <stdarg.h>
3786d7f5d3SJohn Marino #include <ulimit.h>
3886d7f5d3SJohn Marino
3986d7f5d3SJohn Marino long
ulimit(int cmd,...)4086d7f5d3SJohn Marino ulimit(int cmd, ...)
4186d7f5d3SJohn Marino {
4286d7f5d3SJohn Marino struct rlimit limit;
4386d7f5d3SJohn Marino va_list ap;
4486d7f5d3SJohn Marino long arg;
4586d7f5d3SJohn Marino
4686d7f5d3SJohn Marino if (cmd == UL_GETFSIZE) {
4786d7f5d3SJohn Marino if (getrlimit(RLIMIT_FSIZE, &limit) == -1)
4886d7f5d3SJohn Marino return (-1);
4986d7f5d3SJohn Marino limit.rlim_cur /= 512;
5086d7f5d3SJohn Marino if (limit.rlim_cur > LONG_MAX)
5186d7f5d3SJohn Marino return (LONG_MAX);
5286d7f5d3SJohn Marino return ((long)limit.rlim_cur);
5386d7f5d3SJohn Marino } else if (cmd == UL_SETFSIZE) {
5486d7f5d3SJohn Marino va_start(ap, cmd);
5586d7f5d3SJohn Marino arg = va_arg(ap, long);
5686d7f5d3SJohn Marino va_end(ap);
5786d7f5d3SJohn Marino limit.rlim_max = limit.rlim_cur = (rlim_t)arg * 512;
5886d7f5d3SJohn Marino
5986d7f5d3SJohn Marino /* The setrlimit() function sets errno to EPERM if needed. */
6086d7f5d3SJohn Marino if (setrlimit(RLIMIT_FSIZE, &limit) == -1)
6186d7f5d3SJohn Marino return (-1);
6286d7f5d3SJohn Marino if (arg * 512 > LONG_MAX)
6386d7f5d3SJohn Marino return (LONG_MAX);
6486d7f5d3SJohn Marino return (arg);
6586d7f5d3SJohn Marino } else {
6686d7f5d3SJohn Marino errno = EINVAL;
6786d7f5d3SJohn Marino return (-1);
6886d7f5d3SJohn Marino }
6986d7f5d3SJohn Marino }
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