xref: /titanic_51/usr/src/lib/libbc/libc/compat/4.1/vlimit.c (revision bdfc6d18da790deeec2e0eb09c625902defe2498)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License, Version 1.0 only
6  * (the "License").  You may not use this file except in compliance
7  * with the License.
8  *
9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10  * or http://www.opensolaris.org/os/licensing.
11  * See the License for the specific language governing permissions
12  * and limitations under the License.
13  *
14  * When distributing Covered Code, include this CDDL HEADER in each
15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16  * If applicable, add the following below this CDDL HEADER, with the
17  * fields enclosed by brackets "[]" replaced with your own identifying
18  * information: Portions Copyright [yyyy] [name of copyright owner]
19  *
20  * CDDL HEADER END
21  */
22 #pragma ident	"%Z%%M%	%I%	%E% SMI"
23 	  /* from UCB 4.2 83/06/20 */
24 
25 /*
26  * (Almost) backwards compatible vlimit.
27  */
28 #include <sys/time.h>
29 #include <sys/resource.h>
30 #include <errno.h>
31 
32 /* LIM_NORAISE is not emulated */
33 #define	LIM_NORAISE	0	/* if <> 0, can't raise limits */
34 #define	LIM_CPU		1	/* max secs cpu time */
35 #define	LIM_FSIZE	2	/* max size of file created */
36 #define	LIM_DATA	3	/* max growth of data space */
37 #define	LIM_STACK	4	/* max growth of stack */
38 #define	LIM_CORE	5	/* max size of ``core'' file */
39 #define	LIM_MAXRSS	6	/* max desired data+stack core usage */
40 
41 #define	NLIMITS		6
42 
43 vlimit(limit, value)
44 	int limit, value;
45 {
46 	struct rlimit rlim;
47 
48 	if (limit <= 0 || limit > NLIMITS)
49 		return (EINVAL);
50 	if (value == -1) {
51 		if (getrlimit(limit - 1, &rlim) < 0)
52 			return (-1);
53 		return (rlim.rlim_cur);
54 	}
55 	rlim.rlim_cur = value;
56 	rlim.rlim_max = RLIM_INFINITY;
57 	return (setrlimit(limit - 1, &rlim));
58 }
59