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>
41 #include "un-namespace.h"
42 #include "libc_private.h"
45 sigvec(signo, sv, osv)
47 struct sigvec *sv, *osv;
49 struct sigaction sa, osa;
50 struct sigaction *sap, *osap;
54 sa.sa_handler = sv->sv_handler;
55 sa.sa_flags = sv->sv_flags ^ SV_INTERRUPT;
56 sigemptyset(&sa.sa_mask);
57 sa.sa_mask.__bits[0] = sv->sv_mask;
61 osap = osv != NULL ? &osa : NULL;
62 ret = __libc_sigaction(signo, sap, osap);
63 if (ret == 0 && osv != NULL) {
64 osv->sv_handler = osa.sa_handler;
65 osv->sv_flags = osa.sa_flags ^ SV_INTERRUPT;
66 osv->sv_mask = osa.sa_mask.__bits[0];
80 n = __libc_sigprocmask(SIG_SETMASK, &set, &oset);
83 return (oset.__bits[0]);
95 n = __libc_sigprocmask(SIG_BLOCK, &set, &oset);
98 return (oset.__bits[0]);
107 set.__bits[0] = mask;
108 return (__libc_sigsuspend(&set));
112 xsi_sigpause(int sig)
116 if (__libc_sigprocmask(SIG_BLOCK, NULL, &set) == -1)
118 if (sigdelset(&set, sig) == -1)
120 return (__libc_sigsuspend(&set));
129 if (sigaddset(&set, sig) == -1)
131 return (__libc_sigprocmask(SIG_BLOCK, &set, NULL));
139 bzero(&sa, sizeof(sa));
140 sa.sa_handler = SIG_IGN;
141 return (__libc_sigaction(sig, &sa, NULL));
150 if (sigaddset(&set, sig) == -1)
152 return (__libc_sigprocmask(SIG_UNBLOCK, &set, NULL));
156 (*sigset(int sig, void (*disp)(int)))(int)
159 struct sigaction sa, psa;
162 if (sigaddset(&set, sig) == -1)
164 if (__libc_sigprocmask(SIG_BLOCK, NULL, &pset) == -1)
166 if ((__sighandler_t *)disp == SIG_HOLD) {
167 if (__libc_sigprocmask(SIG_BLOCK, &set, &pset) == -1)
169 if (sigismember(&pset, sig))
172 if (__libc_sigaction(sig, NULL, &psa) == -1)
174 return (psa.sa_handler);
177 if (__libc_sigprocmask(SIG_UNBLOCK, &set, &pset) == -1)
181 bzero(&sa, sizeof(sa));
182 sa.sa_handler = disp;
183 if (__libc_sigaction(sig, &sa, &psa) == -1)
185 if (sigismember(&pset, sig))
188 return (psa.sa_handler);