Annotation of prex/usr/lib/posix/signal/sigcompat.c, Revision 1.1.1.1
1.1 nbrk 1: /*
2: * Copyright (c) 1989, 1993
3: * The Regents of the University of California. All rights reserved.
4: *
5: * Redistribution and use in source and binary forms, with or without
6: * modification, are permitted provided that the following conditions
7: * are met:
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: * 3. 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.
16: *
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
27: * SUCH DAMAGE.
28: */
29:
30: #include <sys/param.h>
31: #include <signal.h>
32:
33: int
34: sigvec(signo, sv, osv)
35: int signo;
36: struct sigvec *sv, *osv;
37: {
38: int ret;
39:
40: if (sv)
41: sv->sv_flags ^= SV_INTERRUPT; /* !SA_INTERRUPT */
42: ret = sigaction(signo, (struct sigaction *)sv, (struct sigaction *)osv);
43: if (ret == 0 && osv)
44: osv->sv_flags ^= SV_INTERRUPT; /* !SA_INTERRUPT */
45: return (ret);
46: }
47:
48: int
49: sigsetmask(mask)
50: int mask;
51: {
52: int omask, n;
53:
54: n = sigprocmask(SIG_SETMASK, (sigset_t *) &mask, (sigset_t *) &omask);
55: if (n)
56: return (n);
57: return (omask);
58: }
59:
60: int
61: sigblock(mask)
62: int mask;
63: {
64: int omask, n;
65:
66: n = sigprocmask(SIG_BLOCK, (sigset_t *) &mask, (sigset_t *) &omask);
67: if (n)
68: return (n);
69: return (omask);
70: }
71:
72: int
73: sigpause(mask)
74: int mask;
75: {
76: return (sigsuspend((sigset_t *)&mask));
77: }
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