1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
|
/*
* Copyright (c) 1989, 1993
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#if defined(LIBC_SCCS) && !defined(lint)
#if 0
static char sccsid[] = "@(#)sigcompat.c 8.1 (Berkeley) 6/2/93";
#endif
static const char rcsid[] =
"$FreeBSD$";
#endif /* LIBC_SCCS and not lint */
#include <sys/param.h>
#include <signal.h>
int
sigvec(signo, sv, osv)
int signo;
struct sigvec *sv, *osv;
{
struct sigaction sa, osa;
struct sigaction *sap, *osap;
int ret;
if (sv != NULL) {
sa.sa_handler = sv->sv_handler;
sa.sa_flags = sv->sv_flags ^ SV_INTERRUPT;
sigemptyset(&sa.sa_mask);
sa.sa_mask.__bits[0] = sv->sv_mask;
sap = &sa;
} else
sap = NULL;
osap = osv != NULL ? &osa : NULL;
ret = sigaction(signo, sap, osap);
if (ret == 0 && osv != NULL) {
osv->sv_handler = osa.sa_handler;
osv->sv_flags = osa.sa_flags ^ SV_INTERRUPT;
osv->sv_mask = osa.sa_mask.__bits[0];
}
return (ret);
}
int
sigsetmask(mask)
int mask;
{
sigset_t set, oset;
int n;
sigemptyset(&set);
set.__bits[0] = mask;
n = sigprocmask(SIG_SETMASK, &set, &oset);
if (n)
return (n);
return (oset.__bits[0]);
}
int
sigblock(mask)
int mask;
{
sigset_t set, oset;
int n;
sigemptyset(&set);
set.__bits[0] = mask;
n = sigprocmask(SIG_BLOCK, &set, &oset);
if (n)
return (n);
return (oset.__bits[0]);
}
int
sigpause(mask)
int mask;
{
sigset_t set;
sigemptyset(&set);
set.__bits[0] = mask;
return (_sigsuspend(&set));
}
|
