xref: /titanic_51/usr/src/lib/libbc/libc/compat/common/ulimit.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 /*
23  * Copyright 1987 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 
27 #pragma ident	"%Z%%M%	%I%	%E% SMI"
28 
29 #include <sys/time.h>
30 #include <sys/resource.h>
31 #include <errno.h>
32 
33 extern	errno;
34 
35 ulimit(cmd, newlimit)
36 	int cmd;
37 	long newlimit;
38 {
39 	struct rlimit rlimit;
40 
41 	switch (cmd) {
42 
43 	case 1:
44 		if (getrlimit(RLIMIT_FSIZE, &rlimit) < 0)
45 			return(-1);
46 		return (rlimit.rlim_cur / 512);
47 
48 	case 2:
49 		rlimit.rlim_cur = rlimit.rlim_max = newlimit * 512;
50 		return (setrlimit(RLIMIT_FSIZE, &rlimit));
51 
52 	case 3:
53 		if (getrlimit(RLIMIT_DATA, &rlimit) < 0)
54 			return(-1);
55 		return (rlimit.rlim_cur);
56 
57 	case 4:
58 		return (getdtablesize());
59 
60 	default:
61 		errno = EINVAL;
62 		return (-1);
63 	}
64 }
65