10Sstevel@tonic-gate /*
20Sstevel@tonic-gate * CDDL HEADER START
30Sstevel@tonic-gate *
40Sstevel@tonic-gate * The contents of this file are subject to the terms of the
5*6812Sraf * Common Development and Distribution License (the "License").
6*6812Sraf * You may not use this file except in compliance with the License.
70Sstevel@tonic-gate *
80Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
90Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing.
100Sstevel@tonic-gate * See the License for the specific language governing permissions
110Sstevel@tonic-gate * and limitations under the License.
120Sstevel@tonic-gate *
130Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each
140Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
150Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the
160Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying
170Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner]
180Sstevel@tonic-gate *
190Sstevel@tonic-gate * CDDL HEADER END
200Sstevel@tonic-gate */
21*6812Sraf
220Sstevel@tonic-gate /*
23*6812Sraf * Copyright 2008 Sun Microsystems, Inc. All rights reserved.
240Sstevel@tonic-gate * Use is subject to license terms.
25*6812Sraf */
26*6812Sraf
27*6812Sraf /*
280Sstevel@tonic-gate * Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T
290Sstevel@tonic-gate * All Rights Reserved
300Sstevel@tonic-gate *
310Sstevel@tonic-gate * Portions of this source code were derived from Berkeley
320Sstevel@tonic-gate * 4.3 BSD under license from the regents of the University of
330Sstevel@tonic-gate * California.
340Sstevel@tonic-gate */
350Sstevel@tonic-gate
360Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI"
370Sstevel@tonic-gate
38*6812Sraf #include "lint.h"
390Sstevel@tonic-gate
400Sstevel@tonic-gate #include <sys/time.h>
410Sstevel@tonic-gate #include <sys/resource.h>
420Sstevel@tonic-gate #include <sys/types.h>
430Sstevel@tonic-gate #include <limits.h>
440Sstevel@tonic-gate /*
450Sstevel@tonic-gate * getdtablesize is implemented on top of getrlimit's
460Sstevel@tonic-gate * RLIMIT_NOFILE feature. The current (Soft) limit is returned.
470Sstevel@tonic-gate */
480Sstevel@tonic-gate int
getdtablesize(void)490Sstevel@tonic-gate getdtablesize(void)
500Sstevel@tonic-gate {
510Sstevel@tonic-gate struct rlimit rip;
520Sstevel@tonic-gate
530Sstevel@tonic-gate if (getrlimit(RLIMIT_NOFILE, &rip) == -1)
540Sstevel@tonic-gate return (-1); /* can't happen */
550Sstevel@tonic-gate if (rip.rlim_cur == RLIM_INFINITY)
560Sstevel@tonic-gate return (INT_MAX);
570Sstevel@tonic-gate return ((int)rip.rlim_cur);
580Sstevel@tonic-gate }
59