85 lines
2.8 KiB
C
85 lines
2.8 KiB
C
/* $NetBSD: abort.c,v 1.12 2003/08/07 16:43:37 agc Exp $ */
|
|
|
|
/*
|
|
* Copyright (c) 1985, 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[] = "@(#)abort.c 8.1 (Berkeley) 6/4/93";
|
|
#else
|
|
__RCSID("$NetBSD: abort.c,v 1.12 2003/08/07 16:43:37 agc Exp $");
|
|
#endif
|
|
#endif /* LIBC_SCCS and not lint */
|
|
|
|
#include "namespace.h"
|
|
#include <signal.h>
|
|
#include <stdlib.h>
|
|
#include <unistd.h>
|
|
|
|
extern void (*__cleanup) __P((void));
|
|
static int aborting = 0;
|
|
|
|
void
|
|
abort()
|
|
{
|
|
sigset_t mask;
|
|
|
|
sigfillset(&mask);
|
|
/*
|
|
* don't block SIGABRT to give any handler a chance; we ignore
|
|
* any errors -- X311J doesn't allow abort to return anyway.
|
|
*/
|
|
sigdelset(&mask, SIGABRT);
|
|
(void)sigprocmask(SIG_SETMASK, &mask, (sigset_t *)NULL);
|
|
|
|
/*
|
|
* POSIX.1 requires that stdio buffers be flushed on abort.
|
|
* We ensure the cleanup routines are only called once in
|
|
* case the user calls abort() in a SIGABRT handler.
|
|
*/
|
|
if (!aborting) {
|
|
aborting = 1;
|
|
|
|
if (__cleanup)
|
|
(*__cleanup)();
|
|
}
|
|
|
|
(void)kill(getpid(), SIGABRT);
|
|
|
|
/*
|
|
* if SIGABRT ignored, or caught and the handler returns, do
|
|
* it again, only harder.
|
|
*/
|
|
(void)signal(SIGABRT, SIG_DFL);
|
|
(void)sigprocmask(SIG_SETMASK, &mask, (sigset_t *)NULL);
|
|
(void)kill(getpid(), SIGABRT);
|
|
_exit(1);
|
|
}
|