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