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/* $OpenBSD: signal.c,v 1.3 1996/06/26 05:38:18 deraadt Exp $ */
/*
* Copyright (c) 1993 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. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. 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.
*/
#ifndef lint
static char RCSid[] =
"$OpenBSD: signal.c,v 1.3 1996/06/26 05:38:18 deraadt Exp $";
static char sccsid[] = "@(#)signal.c";
static char copyright[] =
"@(#) Copyright (c) 1993 Regents of the University of California.\n\
All rights reserved.\n";
#endif /* not lint */
#include "defs.h"
#if defined(NEED_SIGBLOCK)
static int current_mask = 0;
int sigblock(mask)
int mask;
{
int sig;
int m;
int oldmask;
oldmask = current_mask;
for ( sig = 1, m = 1; sig <= MAXSIG; sig++, m <<= 1 ) {
if (mask & m) {
sighold(sig);
current_mask |= m;
}
}
return oldmask;
}
#endif /* NEED_SIGBLOCK */
#if defined(NEED_SIGSETMASK)
int sigsetmask(mask)
int mask;
{
int sig;
int m;
int oldmask;
oldmask = current_mask;
for ( sig = 1, m = 1; sig <= MAXSIG; sig++, m <<= 1 ) {
if (mask & m) {
sighold(sig);
current_mask |= m;
}
else {
sigrelse(sig);
current_mask &= ~m;
}
}
return oldmask;
}
#endif /* NEED_SIGSETMASK */
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