xref: /opensolaris-onvv-gate/usr/src/lib/libbc/libc/compat/4.1/vlimit.c

/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License, Version 1.0 only
 * (the "License").  You may not use this file except in compliance
 * with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */
/*
 * Copyright 1990 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

#pragma ident	"%Z%%M%	%I%	%E% SMI"

/*
 * (Almost) backwards compatible vlimit.
 */
#include <sys/time.h>
#include <sys/resource.h>
#include <errno.h>

/* LIM_NORAISE is not emulated */
#define	LIM_NORAISE	0	/* if <> 0, can't raise limits */
#define	LIM_CPU		1	/* max secs cpu time */
#define	LIM_FSIZE	2	/* max size of file created */
#define	LIM_DATA	3	/* max growth of data space */
#define	LIM_STACK	4	/* max growth of stack */
#define	LIM_CORE	5	/* max size of ``core'' file */
#define	LIM_MAXRSS	6	/* max desired data+stack core usage */

#define	NLIMITS		6

int
vlimit(int limit, int value)
{
	struct rlimit rlim;

	if (limit <= 0 || limit > NLIMITS)
		return (EINVAL);
	if (value == -1) {
		if (getrlimit(limit - 1, &rlim) < 0)
			return (-1);
		return (rlim.rlim_cur);
	}
	rlim.rlim_cur = value;
	rlim.rlim_max = RLIM_INFINITY;
	return (setrlimit(limit - 1, &rlim));
}