1*0Sstevel@tonic-gate /* $OpenBSD: sigaction.c,v 1.3 1999/06/27 08:14:21 millert Exp $ */
2*0Sstevel@tonic-gate
3*0Sstevel@tonic-gate /****************************************************************************
4*0Sstevel@tonic-gate * Copyright (c) 1998 Free Software Foundation, Inc. *
5*0Sstevel@tonic-gate * *
6*0Sstevel@tonic-gate * Permission is hereby granted, free of charge, to any person obtaining a *
7*0Sstevel@tonic-gate * copy of this software and associated documentation files (the *
8*0Sstevel@tonic-gate * "Software"), to deal in the Software without restriction, including *
9*0Sstevel@tonic-gate * without limitation the rights to use, copy, modify, merge, publish, *
10*0Sstevel@tonic-gate * distribute, distribute with modifications, sublicense, and/or sell *
11*0Sstevel@tonic-gate * copies of the Software, and to permit persons to whom the Software is *
12*0Sstevel@tonic-gate * furnished to do so, subject to the following conditions: *
13*0Sstevel@tonic-gate * *
14*0Sstevel@tonic-gate * The above copyright notice and this permission notice shall be included *
15*0Sstevel@tonic-gate * in all copies or substantial portions of the Software. *
16*0Sstevel@tonic-gate * *
17*0Sstevel@tonic-gate * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
18*0Sstevel@tonic-gate * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
19*0Sstevel@tonic-gate * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
20*0Sstevel@tonic-gate * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
21*0Sstevel@tonic-gate * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
22*0Sstevel@tonic-gate * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
23*0Sstevel@tonic-gate * THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
24*0Sstevel@tonic-gate * *
25*0Sstevel@tonic-gate * Except as contained in this notice, the name(s) of the above copyright *
26*0Sstevel@tonic-gate * holders shall not be used in advertising or otherwise to promote the *
27*0Sstevel@tonic-gate * sale, use or other dealings in this Software without prior written *
28*0Sstevel@tonic-gate * authorization. *
29*0Sstevel@tonic-gate ****************************************************************************/
30*0Sstevel@tonic-gate
31*0Sstevel@tonic-gate /****************************************************************************
32*0Sstevel@tonic-gate * Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995 *
33*0Sstevel@tonic-gate * and: Eric S. Raymond <esr@snark.thyrsus.com> *
34*0Sstevel@tonic-gate ****************************************************************************/
35*0Sstevel@tonic-gate
36*0Sstevel@tonic-gate #include "includes.h"
37*0Sstevel@tonic-gate #include <signal.h>
38*0Sstevel@tonic-gate #include "sigact.h"
39*0Sstevel@tonic-gate
40*0Sstevel@tonic-gate /* This file provides sigaction() emulation using sigvec() */
41*0Sstevel@tonic-gate /* Use only if this is non POSIX system */
42*0Sstevel@tonic-gate
43*0Sstevel@tonic-gate #if !HAVE_SIGACTION && HAVE_SIGVEC
44*0Sstevel@tonic-gate
45*0Sstevel@tonic-gate int
sigaction(int sig,struct sigaction * sigact,struct sigaction * osigact)46*0Sstevel@tonic-gate sigaction(int sig, struct sigaction *sigact, struct sigaction *osigact)
47*0Sstevel@tonic-gate {
48*0Sstevel@tonic-gate return sigvec(sig, &(sigact->sv), &(osigact->sv));
49*0Sstevel@tonic-gate }
50*0Sstevel@tonic-gate
51*0Sstevel@tonic-gate int
sigemptyset(sigset_t * mask)52*0Sstevel@tonic-gate sigemptyset (sigset_t * mask)
53*0Sstevel@tonic-gate {
54*0Sstevel@tonic-gate *mask = 0;
55*0Sstevel@tonic-gate return 0;
56*0Sstevel@tonic-gate }
57*0Sstevel@tonic-gate
58*0Sstevel@tonic-gate int
sigprocmask(int mode,sigset_t * mask,sigset_t * omask)59*0Sstevel@tonic-gate sigprocmask (int mode, sigset_t * mask, sigset_t * omask)
60*0Sstevel@tonic-gate {
61*0Sstevel@tonic-gate sigset_t current = sigsetmask(0);
62*0Sstevel@tonic-gate
63*0Sstevel@tonic-gate if (omask) *omask = current;
64*0Sstevel@tonic-gate
65*0Sstevel@tonic-gate if (mode==SIG_BLOCK)
66*0Sstevel@tonic-gate current |= *mask;
67*0Sstevel@tonic-gate else if (mode==SIG_UNBLOCK)
68*0Sstevel@tonic-gate current &= ~*mask;
69*0Sstevel@tonic-gate else if (mode==SIG_SETMASK)
70*0Sstevel@tonic-gate current = *mask;
71*0Sstevel@tonic-gate
72*0Sstevel@tonic-gate sigsetmask(current);
73*0Sstevel@tonic-gate return 0;
74*0Sstevel@tonic-gate }
75*0Sstevel@tonic-gate
76*0Sstevel@tonic-gate int
sigsuspend(sigset_t * mask)77*0Sstevel@tonic-gate sigsuspend (sigset_t * mask)
78*0Sstevel@tonic-gate {
79*0Sstevel@tonic-gate return sigpause(*mask);
80*0Sstevel@tonic-gate }
81*0Sstevel@tonic-gate
82*0Sstevel@tonic-gate int
sigdelset(sigset_t * mask,int sig)83*0Sstevel@tonic-gate sigdelset (sigset_t * mask, int sig)
84*0Sstevel@tonic-gate {
85*0Sstevel@tonic-gate *mask &= ~sigmask(sig);
86*0Sstevel@tonic-gate return 0;
87*0Sstevel@tonic-gate }
88*0Sstevel@tonic-gate
89*0Sstevel@tonic-gate int
sigaddset(sigset_t * mask,int sig)90*0Sstevel@tonic-gate sigaddset (sigset_t * mask, int sig)
91*0Sstevel@tonic-gate {
92*0Sstevel@tonic-gate *mask |= sigmask(sig);
93*0Sstevel@tonic-gate return 0;
94*0Sstevel@tonic-gate }
95*0Sstevel@tonic-gate
96*0Sstevel@tonic-gate int
sigismember(sigset_t * mask,int sig)97*0Sstevel@tonic-gate sigismember (sigset_t * mask, int sig)
98*0Sstevel@tonic-gate {
99*0Sstevel@tonic-gate return (*mask & sigmask(sig)) != 0;
100*0Sstevel@tonic-gate }
101*0Sstevel@tonic-gate
102*0Sstevel@tonic-gate #endif
103*0Sstevel@tonic-gate
104*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI"
105