blob: d6966d4fd974020584c57aa004bf56556a7cfa3f [file] [log] [blame]
Damien Miller31abc9a2000-07-09 23:26:27 +10001/* $OpenBSD: sigaction.c,v 1.3 1999/06/27 08:14:21 millert Exp $ */
2
3/****************************************************************************
4 * Copyright (c) 1998 Free Software Foundation, Inc. *
5 * *
6 * Permission is hereby granted, free of charge, to any person obtaining a *
7 * copy of this software and associated documentation files (the *
8 * "Software"), to deal in the Software without restriction, including *
9 * without limitation the rights to use, copy, modify, merge, publish, *
10 * distribute, distribute with modifications, sublicense, and/or sell *
11 * copies of the Software, and to permit persons to whom the Software is *
12 * furnished to do so, subject to the following conditions: *
13 * *
14 * The above copyright notice and this permission notice shall be included *
15 * in all copies or substantial portions of the Software. *
16 * *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
20 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
21 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
22 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
23 * THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
24 * *
25 * Except as contained in this notice, the name(s) of the above copyright *
26 * holders shall not be used in advertising or otherwise to promote the *
27 * sale, use or other dealings in this Software without prior written *
28 * authorization. *
29 ****************************************************************************/
30
31/****************************************************************************
32 * Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995 *
33 * and: Eric S. Raymond <esr@snark.thyrsus.com> *
34 ****************************************************************************/
35
36#include <signal.h>
37#include "config.h"
38#include "bsd-sigaction.h"
39
40/* This file provides sigaction() emulation using sigvec() */
41/* Use only if this is non POSIX system */
42
43#if !HAVE_SIGACTION && HAVE_SIGVEC
44
45int
46sigaction(int sig, struct sigaction *sigact, struct sigaction *osigact)
47{
48 return sigvec(sig, &(sigact->sv), &(osigact->sv));
49}
50
51int
52sigemptyset (sigset_t * mask)
53{
54 *mask = 0;
55 return 0;
56}
57
58int
59sigprocmask (int mode, sigset_t * mask, sigset_t * omask)
60{
61 sigset_t current = sigsetmask(0);
62
63 if (omask) *omask = current;
64
65 if (mode==SIG_BLOCK)
66 current |= *mask;
67 else if (mode==SIG_UNBLOCK)
68 current &= ~*mask;
69 else if (mode==SIG_SETMASK)
70 current = *mask;
71
72 sigsetmask(current);
73 return 0;
74}
75
76int
77sigsuspend (sigset_t * mask)
78{
79 return sigpause(*mask);
80}
81
82int
83sigdelset (sigset_t * mask, int sig)
84{
85 *mask &= ~sigmask(sig);
86 return 0;
87}
88
89int
90sigaddset (sigset_t * mask, int sig)
91{
92 *mask |= sigmask(sig);
93 return 0;
94}
95
96int
97sigismember (sigset_t * mask, int sig)
98{
99 return (*mask & sigmask(sig)) != 0;
100}
101
102#endif