NetBSD/lib/libc/gen/ulimit.c

71 lines
2.3 KiB
C

/* $NetBSD: ulimit.c,v 1.3 2008/04/28 20:22:59 martin Exp $ */
/*-
* Copyright (c) 1999 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Klaus Klein.
*
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
*/
#include <sys/cdefs.h>
#if defined(LIBC_SCCS) && !defined(lint)
__RCSID("$NetBSD: ulimit.c,v 1.3 2008/04/28 20:22:59 martin Exp $");
#endif /* LIBC_SCCS and not lint */
#include <sys/resource.h>
#include <errno.h>
#include <stdarg.h>
#include <ulimit.h>
long int
ulimit(int cmd, ...)
{
va_list ap;
struct rlimit rlimit;
long int new_limit, result;
va_start(ap, cmd);
result = -1L;
switch (cmd) {
case UL_GETFSIZE:
if (getrlimit(RLIMIT_FSIZE, &rlimit) == 0)
result = (long int)(rlimit.rlim_cur / 512);
break;
case UL_SETFSIZE:
new_limit = va_arg(ap, long int);
rlimit.rlim_cur = rlimit.rlim_max = (rlim_t)new_limit * 512;
if (setrlimit(RLIMIT_FSIZE, &rlimit) == 0)
result = new_limit;
break;
default:
errno = EINVAL;
}
va_end(ap);
return (result);
}