minix/lib/nbsd_libc/compat-43/sigcompat.c
Gianluca Guida b6cbf7203b Import unmodified NetBSD libc in trunk
This patch imports the unmodified current version of NetBSD libc.
The NetBSD includes are in /nbsd_include, while the libc code itself is 
split between lib/nbsd_libc and common/lib/libc.
2011-02-14 19:36:03 +00:00

120 lines
3.3 KiB
C

/* $NetBSD: sigcompat.c,v 1.13 2005/12/24 21:11:16 perry Exp $ */
/*
* Copyright (c) 1989, 1993
* 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/cdefs.h>
#if defined(LIBC_SCCS) && !defined(lint)
#if 0
static char sccsid[] = "@(#)sigcompat.c 8.1 (Berkeley) 6/2/93";
#else
__RCSID("$NetBSD: sigcompat.c,v 1.13 2005/12/24 21:11:16 perry Exp $");
#endif
#endif /* LIBC_SCCS and not lint */
#include <sys/param.h>
#include <signal.h>
#include <compat/sys/signal.h>
static inline void sv2sa(struct sigaction *, const struct sigvec *);
static inline void sa2sv(struct sigvec *, const struct sigaction *);
static inline void
sv2sa(struct sigaction *sa, const struct sigvec *sv)
{
sigemptyset(&sa->sa_mask);
sa->sa_mask.__bits[0] = sv->sv_mask;
sa->sa_handler = sv->sv_handler;
sa->sa_flags = sv->sv_flags ^ SV_INTERRUPT; /* !SA_INTERRUPT */
}
static inline void
sa2sv(struct sigvec *sv, const struct sigaction *sa)
{
sv->sv_mask = sa->sa_mask.__bits[0];
sv->sv_handler = sa->sa_handler;
sv->sv_flags = sa->sa_flags ^ SV_INTERRUPT; /* !SA_INTERRUPT */
}
int
sigvec(int signo, struct sigvec *nsv, struct sigvec *osv)
{
int ret;
struct sigaction osa, nsa;
if (nsv)
sv2sa(&nsa, nsv);
ret = sigaction(signo, nsv ? &nsa : NULL, osv ? &osa : NULL);
if (ret == 0 && osv)
sa2sv(osv, &osa);
return (ret);
}
int
sigsetmask(int mask)
{
sigset_t nmask, omask;
int n;
sigemptyset(&nmask);
nmask.__bits[0] = mask;
n = sigprocmask(SIG_SETMASK, &nmask, &omask);
if (n)
return (n);
return (omask.__bits[0]);
}
int
sigblock(int mask)
{
sigset_t nmask, omask;
int n;
sigemptyset(&nmask);
nmask.__bits[0] = mask;
n = sigprocmask(SIG_BLOCK, &nmask, &omask);
if (n)
return (n);
return (omask.__bits[0]);
}
int
sigpause(int mask)
{
sigset_t nmask;
sigemptyset(&nmask);
nmask.__bits[0] = mask;
return (sigsuspend(&nmask));
}