111 lines
2.7 KiB
C
111 lines
2.7 KiB
C
/* $NetBSD: panic.c,v 1.14 2016/03/13 00:32:09 dholland Exp $ */
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/*
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* panic.c - terminate fast in case of error
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* Copyright (c) 1993 by Thomas Koenig
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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. The name of the author(s) may not be used to endorse or promote
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* products derived from this software without specific prior written
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* permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/* System Headers */
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#include <err.h>
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#include <errno.h>
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#include <stdbool.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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/* Local headers */
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#include "panic.h"
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#include "at.h"
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#include "privs.h"
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/* File scope variables */
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#ifndef lint
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#if 0
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static char rcsid[] = "$OpenBSD: panic.c,v 1.4 1997/03/01 23:40:09 millert Exp $";
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#else
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__RCSID("$NetBSD: panic.c,v 1.14 2016/03/13 00:32:09 dholland Exp $");
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#endif
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#endif
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/* Global functions */
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__dead
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void
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panic(const char *a)
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{
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/*
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* Something fatal has happened, print error message and exit.
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*/
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if (fcreated) {
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privs_enter();
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(void)unlink(atfile);
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privs_exit();
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}
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errx(EXIT_FAILURE, "%s", a);
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}
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__dead
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void
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perr(const char *a)
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{
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/*
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* Some operating system error; print error message and exit.
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*/
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perror(a);
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if (fcreated) {
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privs_enter();
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(void)unlink(atfile);
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privs_exit();
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}
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exit(EXIT_FAILURE);
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}
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__dead
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void
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privs_fail(const char *msg)
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{
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perr(msg);
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}
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__dead
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void
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usage(void)
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{
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/* Print usage and exit. */
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(void)fprintf(stderr,
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"usage: at [-bdlmrVv] [-f file] [-q queue] -t [[CC]YY]MMDDhhmm[.SS]\n"
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" at [-bdlmrVv] [-f file] [-q queue] time\n"
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" at [-V] -c job [job ...]\n"
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" atq [-Vv] [-q queue]\n"
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" atrm [-V] job [job ...]\n"
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" batch [-mVv] [-f file] [-q queue] [-t [[CC]YY]MMDDhhmm[.SS]]\n"
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" batch [-mVv] [-f file] [-q queue] [time]\n");
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exit(EXIT_FAILURE);
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}
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