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
50Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only
60Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance
70Sstevel@tonic-gate * with the License.
80Sstevel@tonic-gate *
90Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
100Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing.
110Sstevel@tonic-gate * See the License for the specific language governing permissions
120Sstevel@tonic-gate * and limitations under the License.
130Sstevel@tonic-gate *
140Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each
150Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
160Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the
170Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying
180Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner]
190Sstevel@tonic-gate *
200Sstevel@tonic-gate * CDDL HEADER END
210Sstevel@tonic-gate */
220Sstevel@tonic-gate /*
230Sstevel@tonic-gate * Copyright 1994 Sun Microsystems, Inc. All rights reserved.
240Sstevel@tonic-gate * Use is subject to license terms.
250Sstevel@tonic-gate */
26*722Smuffin
270Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI"
280Sstevel@tonic-gate
290Sstevel@tonic-gate /*
300Sstevel@tonic-gate * posix signal package
310Sstevel@tonic-gate */
320Sstevel@tonic-gate #include <stdio.h>
330Sstevel@tonic-gate #include <signal.h>
340Sstevel@tonic-gate #include <errno.h>
35*722Smuffin
360Sstevel@tonic-gate #define cantmask (sigmask(SIGKILL)|sigmask(SIGSTOP))
370Sstevel@tonic-gate
380Sstevel@tonic-gate
390Sstevel@tonic-gate /*
400Sstevel@tonic-gate * sigemptyset - all known signals
410Sstevel@tonic-gate */
42*722Smuffin int
sigemptyset(sigset_t * sigp)43*722Smuffin sigemptyset(sigset_t *sigp)
440Sstevel@tonic-gate {
45*722Smuffin if (!sigp) {
46*722Smuffin errno = EINVAL;
47*722Smuffin return (-1);
48*722Smuffin }
49*722Smuffin *sigp = 0;
50*722Smuffin return (0);
510Sstevel@tonic-gate }
520Sstevel@tonic-gate
530Sstevel@tonic-gate /*
540Sstevel@tonic-gate * sigfillset - all known signals
550Sstevel@tonic-gate */
56*722Smuffin int
sigfillset(sigset_t * sigp)57*722Smuffin sigfillset(sigset_t *sigp)
580Sstevel@tonic-gate {
59*722Smuffin if (!sigp) {
60*722Smuffin errno = EINVAL;
61*722Smuffin return (-1);
62*722Smuffin }
63*722Smuffin *sigp = sigmask(NSIG - 1) | (sigmask(NSIG - 1) - 1);
64*722Smuffin return (0);
650Sstevel@tonic-gate }
660Sstevel@tonic-gate
670Sstevel@tonic-gate /*
680Sstevel@tonic-gate * add the signal to the set
690Sstevel@tonic-gate */
70*722Smuffin int
sigaddset(sigset_t * sigp,int signo)71*722Smuffin sigaddset(sigset_t *sigp, int signo)
720Sstevel@tonic-gate {
73*722Smuffin if (!sigp || signo <= 0 || signo >= NSIG) {
74*722Smuffin errno = EINVAL;
75*722Smuffin return (-1);
76*722Smuffin }
77*722Smuffin *sigp |= sigmask(signo);
78*722Smuffin return (0);
790Sstevel@tonic-gate }
800Sstevel@tonic-gate
810Sstevel@tonic-gate /*
820Sstevel@tonic-gate * remove the signal from the set
830Sstevel@tonic-gate */
84*722Smuffin int
sigdelset(sigset_t * sigp,int signo)85*722Smuffin sigdelset(sigset_t *sigp, int signo)
860Sstevel@tonic-gate {
87*722Smuffin if (!sigp || signo <= 0 || signo >= NSIG) {
88*722Smuffin errno = EINVAL;
89*722Smuffin return (-1);
90*722Smuffin }
91*722Smuffin *sigp &= ~sigmask(signo);
92*722Smuffin return (0);
930Sstevel@tonic-gate }
940Sstevel@tonic-gate
950Sstevel@tonic-gate /*
960Sstevel@tonic-gate * return true if the signal is in the set (return is 0 or 1)
970Sstevel@tonic-gate */
98*722Smuffin int
sigismember(sigset_t * sigp,int signo)99*722Smuffin sigismember(sigset_t *sigp, int signo)
1000Sstevel@tonic-gate {
101*722Smuffin if (!sigp || signo <= 0 || signo >= NSIG) {
102*722Smuffin errno = EINVAL;
103*722Smuffin return (-1);
104*722Smuffin }
105*722Smuffin return ((*sigp & sigmask(signo)) != 0);
1060Sstevel@tonic-gate }
107