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/* $NetBSD: panic.c,v 1.14 2016/03/13 00:32:09 dholland Exp $ */
/*
* panic.c - terminate fast in case of error
* Copyright (c) 1993 by Thomas Koenig
*
* 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. The name of the author(s) may not be used to endorse or promote
* products derived from this software without specific prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``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 AUTHOR(S) 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, WETHER 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.
*/
/* System Headers */
#include <err.h>
#include <errno.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
/* Local headers */
#include "panic.h"
#include "at.h"
#include "privs.h"
/* File scope variables */
#ifndef lint
#if 0
static char rcsid[] = "$OpenBSD: panic.c,v 1.4 1997/03/01 23:40:09 millert Exp $";
#else
__RCSID("$NetBSD: panic.c,v 1.14 2016/03/13 00:32:09 dholland Exp $");
#endif
#endif
/* Global functions */
__dead
void
panic(const char *a)
{
/*
* Something fatal has happened, print error message and exit.
*/
if (fcreated) {
privs_enter();
(void)unlink(atfile);
privs_exit();
}
errx(EXIT_FAILURE, "%s", a);
}
__dead
void
perr(const char *a)
{
/*
* Some operating system error; print error message and exit.
*/
perror(a);
if (fcreated) {
privs_enter();
(void)unlink(atfile);
privs_exit();
}
exit(EXIT_FAILURE);
}
__dead
void
privs_fail(const char *msg)
{
perr(msg);
}
__dead
void
usage(void)
{
/* Print usage and exit. */
(void)fprintf(stderr,
"usage: at [-bdlmrVv] [-f file] [-q queue] -t [[CC]YY]MMDDhhmm[.SS]\n"
" at [-bdlmrVv] [-f file] [-q queue] time\n"
" at [-V] -c job [job ...]\n"
" atq [-Vv] [-q queue]\n"
" atrm [-V] job [job ...]\n"
" batch [-mVv] [-f file] [-q queue] [-t [[CC]YY]MMDDhhmm[.SS]]\n"
" batch [-mVv] [-f file] [-q queue] [time]\n");
exit(EXIT_FAILURE);
}
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