1 /*
2 * Copyright (c) 1989, 1993
3 * The Regents of the University of California. 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. Neither the name of the University nor the names of its contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 *
29 * $FreeBSD: src/lib/libc/compat-43/sigcompat.c,v 1.7 2000/01/27 23:06:04 jasone Exp $
30 * $DragonFly: src/lib/libc/compat-43/sigcompat.c,v 1.3 2005/01/31 22:29:03 dillon Exp $
31 */
32
33 #include "namespace.h"
34 #include <sys/param.h>
35 #include <signal.h>
36 #include "un-namespace.h"
37 #include "libc_private.h"
38
39 int
sigvec(int signo,struct sigvec * sv,struct sigvec * osv)40 sigvec(int signo, struct sigvec *sv, struct sigvec *osv)
41 {
42 struct sigaction sa, osa;
43 struct sigaction *sap, *osap;
44 int ret;
45
46 if (sv != NULL) {
47 sa.sa_handler = sv->sv_handler;
48 sa.sa_flags = sv->sv_flags ^ SV_INTERRUPT;
49 sigemptyset(&sa.sa_mask);
50 sa.sa_mask.__bits[0] = sv->sv_mask;
51 sap = &sa;
52 } else
53 sap = NULL;
54 osap = osv != NULL ? &osa : NULL;
55 ret = _sigaction(signo, sap, osap);
56 if (ret == 0 && osv != NULL) {
57 osv->sv_handler = osa.sa_handler;
58 osv->sv_flags = osa.sa_flags ^ SV_INTERRUPT;
59 osv->sv_mask = osa.sa_mask.__bits[0];
60 }
61 return (ret);
62 }
63
64 int
sigsetmask(int mask)65 sigsetmask(int mask)
66 {
67 sigset_t set, oset;
68 int n;
69
70 sigemptyset(&set);
71 set.__bits[0] = mask;
72 n = _sigprocmask(SIG_SETMASK, &set, &oset);
73 if (n)
74 return (n);
75 return (oset.__bits[0]);
76 }
77
78 int
sigblock(int mask)79 sigblock(int mask)
80 {
81 sigset_t set, oset;
82 int n;
83
84 sigemptyset(&set);
85 set.__bits[0] = mask;
86 n = _sigprocmask(SIG_BLOCK, &set, &oset);
87 if (n)
88 return (n);
89 return (oset.__bits[0]);
90 }
91
92 int
sigpause(int mask)93 sigpause(int mask)
94 {
95 sigset_t set;
96
97 sigemptyset(&set);
98 set.__bits[0] = mask;
99 return (_sigsuspend(&set));
100 }
101