2 * Copyright (c) 2001 Todd C. Miller <Todd.Miller@courtesan.com>
4 * Permission to use, copy, modify, and distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16 * Sponsored in part by the Defense Advanced Research Projects
17 * Agency (DARPA) and Air Force Research Laboratory, Air Force
18 * Materiel Command, USAF, under agreement number F39502-99-1-0512.
27 static const char rcsid[] = "$Sudo: sigaction.c,v 1.5 2004/02/13 21:36:43 millert Exp $";
31 sigaction(signo, sa, osa)
33 const sigaction_t *sa;
39 /* We must reverse SV_INTERRUPT since it is the opposite of SA_RESTART */
42 nsa.sa_flags ^= SV_INTERRUPT;
46 error = sigvec(signo, sa, osa);
48 osa->sa_flags ^= SV_INTERRUPT; /* flip SV_INTERRUPT as above */
77 if (signo <= 0 || signo >= NSIG) {
82 SET(*set, sigmask(signo));
92 if (signo <= 0 || signo >= NSIG) {
97 CLR(*set, sigmask(signo));
102 sigismember(set, signo)
107 return(ISSET(*set, sigmask(signo)));
111 sigprocmask(how, set, oset)
118 /* If 'set' is NULL the user just wants the current signal mask. */
124 mask = sigblock(*set);
127 mask = sigsetmask(~*set);
130 mask = sigsetmask(*set);