sigcompat.c revision 1.8 1 1.8 perry /* $NetBSD: sigcompat.c,v 1.8 1998/02/02 06:26:43 perry Exp $ */
2 1.7 christos
3 1.1 cgd /*
4 1.8 perry * Copyright (c) 1989, 1993
5 1.8 perry * The Regents of the University of California. All rights reserved.
6 1.1 cgd *
7 1.1 cgd * Redistribution and use in source and binary forms, with or without
8 1.1 cgd * modification, are permitted provided that the following conditions
9 1.1 cgd * are met:
10 1.1 cgd * 1. Redistributions of source code must retain the above copyright
11 1.1 cgd * notice, this list of conditions and the following disclaimer.
12 1.1 cgd * 2. Redistributions in binary form must reproduce the above copyright
13 1.1 cgd * notice, this list of conditions and the following disclaimer in the
14 1.1 cgd * documentation and/or other materials provided with the distribution.
15 1.1 cgd * 3. All advertising materials mentioning features or use of this software
16 1.1 cgd * must display the following acknowledgement:
17 1.1 cgd * This product includes software developed by the University of
18 1.1 cgd * California, Berkeley and its contributors.
19 1.1 cgd * 4. Neither the name of the University nor the names of its contributors
20 1.1 cgd * may be used to endorse or promote products derived from this software
21 1.1 cgd * without specific prior written permission.
22 1.1 cgd *
23 1.1 cgd * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
24 1.1 cgd * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 1.1 cgd * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 1.1 cgd * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
27 1.1 cgd * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 1.1 cgd * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 1.1 cgd * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 1.1 cgd * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 1.1 cgd * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 1.1 cgd * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 1.1 cgd * SUCH DAMAGE.
34 1.1 cgd */
35 1.1 cgd
36 1.7 christos #include <sys/cdefs.h>
37 1.1 cgd #if defined(LIBC_SCCS) && !defined(lint)
38 1.7 christos #if 0
39 1.8 perry static char sccsid[] = "@(#)sigcompat.c 8.1 (Berkeley) 6/2/93";
40 1.7 christos #else
41 1.8 perry __RCSID("$NetBSD: sigcompat.c,v 1.8 1998/02/02 06:26:43 perry Exp $");
42 1.7 christos #endif
43 1.1 cgd #endif /* LIBC_SCCS and not lint */
44 1.1 cgd
45 1.1 cgd #include <sys/param.h>
46 1.1 cgd #include <signal.h>
47 1.1 cgd
48 1.4 jtc int
49 1.1 cgd sigvec(signo, sv, osv)
50 1.1 cgd int signo;
51 1.1 cgd struct sigvec *sv, *osv;
52 1.1 cgd {
53 1.1 cgd int ret;
54 1.5 ws struct sigvec nsv;
55 1.1 cgd
56 1.5 ws if (sv) {
57 1.5 ws nsv = *sv;
58 1.5 ws nsv.sv_flags ^= SV_INTERRUPT; /* !SA_INTERRUPT */
59 1.5 ws }
60 1.6 cgd ret = sigaction(signo, sv ? (struct sigaction *)&nsv : NULL,
61 1.6 cgd (struct sigaction *)osv);
62 1.1 cgd if (ret == 0 && osv)
63 1.1 cgd osv->sv_flags ^= SV_INTERRUPT; /* !SA_INTERRUPT */
64 1.1 cgd return (ret);
65 1.1 cgd }
66 1.1 cgd
67 1.4 jtc int
68 1.1 cgd sigsetmask(mask)
69 1.1 cgd int mask;
70 1.1 cgd {
71 1.1 cgd int omask, n;
72 1.1 cgd
73 1.1 cgd n = sigprocmask(SIG_SETMASK, (sigset_t *) &mask, (sigset_t *) &omask);
74 1.1 cgd if (n)
75 1.1 cgd return (n);
76 1.1 cgd return (omask);
77 1.1 cgd }
78 1.1 cgd
79 1.4 jtc int
80 1.1 cgd sigblock(mask)
81 1.1 cgd int mask;
82 1.1 cgd {
83 1.1 cgd int omask, n;
84 1.1 cgd
85 1.1 cgd n = sigprocmask(SIG_BLOCK, (sigset_t *) &mask, (sigset_t *) &omask);
86 1.1 cgd if (n)
87 1.1 cgd return (n);
88 1.1 cgd return (omask);
89 1.1 cgd }
90 1.1 cgd
91 1.4 jtc int
92 1.1 cgd sigpause(mask)
93 1.1 cgd int mask;
94 1.1 cgd {
95 1.1 cgd return (sigsuspend((sigset_t *)&mask));
96 1.1 cgd }
97