1 /* $OpenBSD: sigaction.c,v 1.4 2001/01/22 18:01:48 millert Exp $ */
3 /****************************************************************************
4 * Copyright (c) 1998,2000 Free Software Foundation, Inc. *
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: *
14 * The above copyright notice and this permission notice shall be included *
15 * in all copies or substantial portions of the Software. *
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. *
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 *
29 ****************************************************************************/
31 /****************************************************************************
32 * Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995 *
33 * and: Eric S. Raymond <esr@snark.thyrsus.com> *
34 ****************************************************************************/
36 /* OPENBSD ORIGINAL: lib/libcurses/base/sigaction.c */
43 /* This file provides sigaction() emulation using sigvec() */
44 /* Use only if this is non POSIX system */
46 #if !HAVE_SIGACTION && HAVE_SIGVEC
49 sigaction(int sig, struct sigaction *sigact, struct sigaction *osigact)
51 return sigvec(sig, sigact ? &sigact->sv : NULL,
52 osigact ? &osigact->sv : NULL);
56 sigemptyset (sigset_t *mask)
67 sigprocmask (int mode, sigset_t *mask, sigset_t *omask)
69 sigset_t current = sigsetmask(0);
79 if (mode == SIG_BLOCK)
81 else if (mode == SIG_UNBLOCK)
83 else if (mode == SIG_SETMASK)
91 sigsuspend (sigset_t *mask)
97 return sigpause(*mask);
101 sigdelset (sigset_t *mask, int sig)
107 *mask &= ~sigmask(sig);
112 sigaddset (sigset_t *mask, int sig)
118 *mask |= sigmask(sig);
123 sigismember (sigset_t *mask, int sig)
129 return (*mask & sigmask(sig)) != 0;