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authorcvs2svn <cvs2svn@FreeBSD.org>1998-01-10 23:00:07 +0000
committercvs2svn <cvs2svn@FreeBSD.org>1998-01-10 23:00:07 +0000
commit7c6e96080c4fb49bf912942804477d202a53396c (patch)
tree876b1afcb203be407dbb2ddfc69653f78b8680c2 /lib/libpthread/thread/thr_sigaction.c
parent1a06f650e6ca43e02260e8d252597fbed2cea73e (diff)
downloadFreeBSD-src-7c6e96080c4fb49bf912942804477d202a53396c.zip
FreeBSD-src-7c6e96080c4fb49bf912942804477d202a53396c.tar.gz
This commit was manufactured by cvs2svn to create branch 'JB'.
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diff --git a/lib/libpthread/thread/thr_sigaction.c b/lib/libpthread/thread/thr_sigaction.c
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-/*
- * Copyright (c) 1995 John Birrell <jb@cimlogic.com.au>.
- * 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 John Birrell.
- * 4. Neither the name of the author nor the names of any co-contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL 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 <signal.h>
-#include <errno.h>
-#ifdef _THREAD_SAFE
-#include <pthread.h>
-#include "pthread_private.h"
-
-int
-sigaction(int sig, const struct sigaction * act, struct sigaction * oact)
-{
- int ret = 0;
- int status;
-
- /* Check if the signal number is out of range: */
- if (sig < 1 || sig > NSIG) {
- /* Return an invalid argument: */
- errno = EINVAL;
- ret = -1;
- } else {
- /*
- * Check if the existing signal action structure contents are
- * to be returned:
- */
- if (oact != NULL) {
- /* Return the existing signal action contents: */
- oact->sa_handler = _thread_run->act[sig - 1].sa_handler;
- oact->sa_mask = _thread_run->act[sig - 1].sa_mask;
- oact->sa_flags = _thread_run->act[sig - 1].sa_flags;
- }
- /* Check if a signal action was supplied: */
- if (act != NULL) {
- /* Block signals while the signal handler is changed: */
- _thread_kern_sig_block(&status);
-
- /* Set the new signal handler: */
- _thread_run->act[sig - 1].sa_handler = act->sa_handler;
- _thread_run->act[sig - 1].sa_mask = act->sa_mask;
- _thread_run->act[sig - 1].sa_flags = act->sa_flags;
-
- /*
- * Unblock signals to allow the new signal handler to
- * take effect:
- */
- _thread_kern_sig_unblock(status);
- }
- }
-
- /* Return the completion status: */
- return (ret);
-}
-#endif
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