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This helper binary will run a given command on every on console, as defined by /etc/ttys (except for ttyv*, where only ttyv0 will be used). If one of the command processes exits, the rest will be killed. This will be used by a future change to start the installer on multiple consoles. Reviewed by: brooks, imp, gjb Differential Revision: https://reviews.freebsd.org/D36804
57 lines
1.9 KiB
C
57 lines
1.9 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause
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*
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* Copyright (c) 2022 Jessica Clarke <jrtc27@FreeBSD.org>
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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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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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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#include <sys/param.h>
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#include <sys/resource.h>
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#include <err.h>
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#include <errno.h>
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#include <signal.h>
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#include <sysexits.h>
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#include <unistd.h>
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#include "common.h"
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void
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reproduce_signal_death(int sig)
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{
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struct rlimit rl;
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if (signal(sig, SIG_DFL) == SIG_ERR)
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err(EX_OSERR,
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"cannot set action to reproduce signal %d",
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sig);
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rl.rlim_cur = 0;
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rl.rlim_max = 0;
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if (setrlimit(RLIMIT_CORE, &rl) == -1)
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err(EX_OSERR,
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"cannot disable core dumps to reproduce signal %d",
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sig);
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kill(getpid(), sig);
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}
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