1 /* $OpenBSD: w_sigaction.c,v 1.1 2015/10/23 04:39:24 guenther Exp $ */ 2 /* 3 * Copyright (c) 2005 Ted Unangst <tedu@openbsd.org> 4 * All Rights Reserved. 5 * 6 * Permission to use, copy, modify, and distribute this software for any 7 * purpose with or without fee is hereby granted, provided that the above 8 * copyright notice and this permission notice appear in all copies. 9 * 10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 17 */ 18 /* 19 * signals 20 */ 21 22 #include <signal.h> 23 #include <errno.h> 24 25 int 26 WRAP(sigaction)(int sig, const struct sigaction *act, struct sigaction *oact) 27 { 28 struct sigaction sa; 29 30 if (sig == SIGTHR) { 31 errno = EINVAL; 32 return (-1); 33 } 34 if (act != NULL && sigismember(&act->sa_mask, SIGTHR)) { 35 sa = *act; 36 sigdelset(&sa.sa_mask, SIGTHR); 37 act = &sa; 38 } 39 return (sigaction(sig, act, oact)); 40 } 41 DEF_WRAP(sigaction); 42