1 /*
2 * Copyright (c) 1989 The Regents of the University of California.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 */
33
34 #if defined(LIBC_SCCS) && !defined(lint)
35 static char sccsid[] = "@(#)sigcompat.c 5.3 (Berkeley) 2/24/91";
36 #endif /* LIBC_SCCS and not lint */
37
38 #include <sys/param.h>
39 #include <signal.h>
40
sigvec(signo,sv,osv)41 sigvec(signo, sv, osv)
42 int signo;
43 struct sigvec *sv, *osv;
44 {
45 int ret;
46
47 if (sv)
48 sv->sv_flags ^= SV_INTERRUPT; /* !SA_INTERRUPT */
49 ret = sigaction(signo, (struct sigaction *)sv, (struct sigaction *)osv);
50 if (ret == 0 && osv)
51 osv->sv_flags ^= SV_INTERRUPT; /* !SA_INTERRUPT */
52 return (ret);
53 }
54
sigsetmask(mask)55 sigsetmask(mask)
56 int mask;
57 {
58 int omask, n;
59
60 n = sigprocmask(SIG_SETMASK, (sigset_t *) &mask, (sigset_t *) &omask);
61 if (n)
62 return (n);
63 return (omask);
64 }
65
sigblock(mask)66 sigblock(mask)
67 int mask;
68 {
69 int omask, n;
70
71 n = sigprocmask(SIG_BLOCK, (sigset_t *) &mask, (sigset_t *) &omask);
72 if (n)
73 return (n);
74 return (omask);
75 }
76
sigpause(mask)77 sigpause(mask)
78 int mask;
79 {
80 return (sigsuspend((sigset_t *)&mask));
81 }
82