/*-
* panic.c - terminate fast in case of error
*
* SPDX-License-Identifier: BSD-2-Clause
*
* Copyright (C) 1993 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.
*/
#include <sys/cdefs.h>
/* System Headers */
#include <err.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
/* Local headers */
#include "panic.h"
#include "privs.h"
#include "at.h"
/* External variables */
/* Global functions */
void
panic(const char *a)
{
/* Something fatal has happened, print error message and exit.
*/
if (fcreated) {
PRIV_START
unlink(atfile);
PRIV_END
}
errx(EXIT_FAILURE, "%s", a);
}
void
perr(const char *a)
{
/* Some operating system error; print error message and exit.
*/
int serrno = errno;
if (fcreated) {
PRIV_START
unlink(atfile);
PRIV_END
}
errno = serrno;
err(EXIT_FAILURE, "%s", a);
}
void
usage(void)
{
/* Print usage and exit. */
fprintf(stderr, "usage: at [-q x] [-f file] [-m] time\n"
" at -c job [job ...]\n"
" at [-f file] -t [[CC]YY]MMDDhhmm[.SS]\n"
" at -r job [job ...]\n"
" at -l -q queuename\n"
" at -l [job ...]\n"
" atq [-q x] [-v]\n"
" atrm job [job ...]\n"
" batch [-f file] [-m]\n");
exit(EXIT_FAILURE);
}
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