sigcompat.c revision 1.1 1 1.1 cgd /*
2 1.1 cgd * Copyright (c) 1989 The Regents of the University of California.
3 1.1 cgd * All rights reserved.
4 1.1 cgd *
5 1.1 cgd * Redistribution and use in source and binary forms, with or without
6 1.1 cgd * modification, are permitted provided that the following conditions
7 1.1 cgd * are met:
8 1.1 cgd * 1. Redistributions of source code must retain the above copyright
9 1.1 cgd * notice, this list of conditions and the following disclaimer.
10 1.1 cgd * 2. Redistributions in binary form must reproduce the above copyright
11 1.1 cgd * notice, this list of conditions and the following disclaimer in the
12 1.1 cgd * documentation and/or other materials provided with the distribution.
13 1.1 cgd * 3. All advertising materials mentioning features or use of this software
14 1.1 cgd * must display the following acknowledgement:
15 1.1 cgd * This product includes software developed by the University of
16 1.1 cgd * California, Berkeley and its contributors.
17 1.1 cgd * 4. Neither the name of the University nor the names of its contributors
18 1.1 cgd * may be used to endorse or promote products derived from this software
19 1.1 cgd * without specific prior written permission.
20 1.1 cgd *
21 1.1 cgd * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 1.1 cgd * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 1.1 cgd * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 1.1 cgd * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 1.1 cgd * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 1.1 cgd * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 1.1 cgd * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 1.1 cgd * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 1.1 cgd * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 1.1 cgd * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 1.1 cgd * SUCH DAMAGE.
32 1.1 cgd */
33 1.1 cgd
34 1.1 cgd #if defined(LIBC_SCCS) && !defined(lint)
35 1.1 cgd static char sccsid[] = "@(#)sigcompat.c 5.3 (Berkeley) 2/24/91";
36 1.1 cgd #endif /* LIBC_SCCS and not lint */
37 1.1 cgd
38 1.1 cgd #include <sys/param.h>
39 1.1 cgd #include <signal.h>
40 1.1 cgd
41 1.1 cgd sigvec(signo, sv, osv)
42 1.1 cgd int signo;
43 1.1 cgd struct sigvec *sv, *osv;
44 1.1 cgd {
45 1.1 cgd int ret;
46 1.1 cgd
47 1.1 cgd if (sv)
48 1.1 cgd sv->sv_flags ^= SV_INTERRUPT; /* !SA_INTERRUPT */
49 1.1 cgd ret = sigaction(signo, (struct sigaction *)sv, (struct sigaction *)osv);
50 1.1 cgd if (ret == 0 && osv)
51 1.1 cgd osv->sv_flags ^= SV_INTERRUPT; /* !SA_INTERRUPT */
52 1.1 cgd return (ret);
53 1.1 cgd }
54 1.1 cgd
55 1.1 cgd sigsetmask(mask)
56 1.1 cgd int mask;
57 1.1 cgd {
58 1.1 cgd int omask, n;
59 1.1 cgd
60 1.1 cgd n = sigprocmask(SIG_SETMASK, (sigset_t *) &mask, (sigset_t *) &omask);
61 1.1 cgd if (n)
62 1.1 cgd return (n);
63 1.1 cgd return (omask);
64 1.1 cgd }
65 1.1 cgd
66 1.1 cgd sigblock(mask)
67 1.1 cgd int mask;
68 1.1 cgd {
69 1.1 cgd int omask, n;
70 1.1 cgd
71 1.1 cgd n = sigprocmask(SIG_BLOCK, (sigset_t *) &mask, (sigset_t *) &omask);
72 1.1 cgd if (n)
73 1.1 cgd return (n);
74 1.1 cgd return (omask);
75 1.1 cgd }
76 1.1 cgd
77 1.1 cgd sigpause(mask)
78 1.1 cgd int mask;
79 1.1 cgd {
80 1.1 cgd return (sigsuspend((sigset_t *)&mask));
81 1.1 cgd }
82