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5bf9cfe9 | 1 | /* $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" | |
8f0b3553 | 38 | #include "sigact.h" |
5bf9cfe9 | 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 | ||
45 | int | |
46 | sigaction(int sig, struct sigaction *sigact, struct sigaction *osigact) | |
47 | { | |
48 | return sigvec(sig, &(sigact->sv), &(osigact->sv)); | |
49 | } | |
50 | ||
51 | int | |
52 | sigemptyset (sigset_t * mask) | |
53 | { | |
54 | *mask = 0; | |
55 | return 0; | |
56 | } | |
57 | ||
58 | int | |
59 | sigprocmask (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 | ||
76 | int | |
77 | sigsuspend (sigset_t * mask) | |
78 | { | |
79 | return sigpause(*mask); | |
80 | } | |
81 | ||
82 | int | |
83 | sigdelset (sigset_t * mask, int sig) | |
84 | { | |
85 | *mask &= ~sigmask(sig); | |
86 | return 0; | |
87 | } | |
88 | ||
89 | int | |
90 | sigaddset (sigset_t * mask, int sig) | |
91 | { | |
92 | *mask |= sigmask(sig); | |
93 | return 0; | |
94 | } | |
95 | ||
96 | int | |
97 | sigismember (sigset_t * mask, int sig) | |
98 | { | |
99 | return (*mask & sigmask(sig)) != 0; | |
100 | } | |
101 | ||
102 | #endif |