78 lines
2.3 KiB
C
78 lines
2.3 KiB
C
/*
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* Copyright (c) 1989 The Regents of the University of California.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <signal.h>
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int
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sigvec(int signo, struct sigvec *sv, struct sigvec *osv)
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{
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int ret;
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struct sigvec nsv;
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if (sv) {
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nsv = *sv;
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nsv.sv_flags ^= SV_INTERRUPT; /* !SA_INTERRUPT */
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}
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ret = WRAP(sigaction)(signo, sv ? (struct sigaction *)&nsv : NULL,
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(struct sigaction *)osv);
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if (ret == 0 && osv)
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osv->sv_flags ^= SV_INTERRUPT; /* !SA_INTERRUPT */
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return (ret);
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}
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int
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sigsetmask(int mask)
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{
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int omask, n;
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n = WRAP(sigprocmask)(SIG_SETMASK, (sigset_t *) &mask,
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(sigset_t *) &omask);
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if (n)
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return (n);
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return (omask);
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}
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int
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sigblock(int mask)
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{
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int omask, n;
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n = WRAP(sigprocmask)(SIG_BLOCK, (sigset_t *) &mask,
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(sigset_t *) &omask);
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if (n)
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return (n);
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return (omask);
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}
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int
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sigpause(int mask)
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{
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return (sigsuspend((sigset_t *)&mask));
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}
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