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to the main handler, rather than wherever the parent shell would go. nb: not needed for vfork(), after vfork() we never go that path - which is good or we'd be corrupting the parent's handler. This allows the child to always exit (when it should) rather than being caught up doing something else (and while it would eventually exit, the status would be incorrect in some cases). One test is: sh -c 'trap "(! :) && echo BUG || echo nobug" EXIT' from Martijn Dekker Fix from FreeBSD (missed earlier). XXX - 2b part of the 48875 pullup to -8
43 lines
2.0 KiB
C
43 lines
2.0 KiB
C
/* $NetBSD: main.h,v 1.12 2018/12/03 02:38:30 kre Exp $ */
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/*-
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* Copyright (c) 1991, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* Kenneth Almquist.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)main.h 8.2 (Berkeley) 5/4/95
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*/
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extern int rootpid; /* pid of main shell */
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extern int rootshell; /* true if we aren't a child of the main shell */
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extern struct jmploc main_handler; /* top level exception handler */
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void readcmdfile(char *);
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void cmdloop(int);
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