2 * Copyright (c) 1989, 1993
3 * The Regents of the University of California. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 4. Neither the name of the University nor the names of its contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 #if defined(LIBC_SCCS) && !defined(lint)
31 static char sccsid[] = "@(#)sigcompat.c 8.1 (Berkeley) 6/2/93";
32 #endif /* LIBC_SCCS and not lint */
33 #include <sys/cdefs.h>
34 __FBSDID("$FreeBSD$");
36 #include "namespace.h"
37 #include <sys/param.h>
40 #include "un-namespace.h"
41 #include "libc_private.h"
44 sigvec(signo, sv, osv)
46 struct sigvec *sv, *osv;
48 struct sigaction sa, osa;
49 struct sigaction *sap, *osap;
53 sa.sa_handler = sv->sv_handler;
54 sa.sa_flags = sv->sv_flags ^ SV_INTERRUPT;
55 sigemptyset(&sa.sa_mask);
56 sa.sa_mask.__bits[0] = sv->sv_mask;
60 osap = osv != NULL ? &osa : NULL;
61 ret = _sigaction(signo, sap, osap);
62 if (ret == 0 && osv != NULL) {
63 osv->sv_handler = osa.sa_handler;
64 osv->sv_flags = osa.sa_flags ^ SV_INTERRUPT;
65 osv->sv_mask = osa.sa_mask.__bits[0];
79 n = _sigprocmask(SIG_SETMASK, &set, &oset);
82 return (oset.__bits[0]);
94 n = _sigprocmask(SIG_BLOCK, &set, &oset);
97 return (oset.__bits[0]);
106 set.__bits[0] = mask;
107 return (_sigsuspend(&set));
111 xsi_sigpause(int sig)
116 sigaddset(&set, sig);
117 return (_sigsuspend(&set));
126 sigaddset(&set, sig);
127 return (_sigprocmask(SIG_BLOCK, &set, NULL));
135 bzero(&sa, sizeof(sa));
136 sa.sa_handler = SIG_IGN;
137 return (_sigaction(sig, &sa, NULL));
146 sigaddset(&set, sig);
147 return (_sigprocmask(SIG_UNBLOCK, &set, NULL));
151 (*sigset(int sig, void (*disp)(int)))(int)
154 struct sigaction sa, psa;
158 sigaddset(&set, sig);
159 error = _sigprocmask(SIG_BLOCK, NULL, &pset);
162 if ((__sighandler_t *)disp == SIG_HOLD) {
163 error = _sigprocmask(SIG_BLOCK, &set, &pset);
166 if (sigismember(&pset, sig))
169 error = _sigaction(sig, NULL, &psa);
172 return (psa.sa_handler);
175 error = _sigprocmask(SIG_UNBLOCK, &set, &pset);
180 bzero(&sa, sizeof(sa));
181 sa.sa_handler = disp;
182 error = _sigaction(sig, &sa, &psa);
185 if (sigismember(&pset, sig))
188 return (psa.sa_handler);