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/* $OpenBSD: panic.c,v 1.10 2002/05/14 18:05:39 millert Exp $ */
/* $NetBSD: panic.c,v 1.2 1995/03/25 18:13:33 glass 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.
*/
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include "at.h"
#include "panic.h"
#include "privs.h"
#ifndef lint
static const char rcsid[] = "$OpenBSD: panic.c,v 1.10 2002/05/14 18:05:39 millert Exp $";
#endif
/*
* Something fatal has happened, print error message and exit.
*/
__dead void
panic(const char *a)
{
(void)fprintf(stderr, "%s: %s\n", __progname, a);
if (fcreated) {
PRIV_START;
unlink(atfile);
PRIV_END;
}
exit(EXIT_FAILURE);
}
/*
* Some operating system error; print error message and exit.
*/
__dead void
perr(const char *a)
{
if (!force)
perror(a);
if (fcreated) {
PRIV_START;
unlink(atfile);
PRIV_END;
}
exit(EXIT_FAILURE);
}
/*
* Two-parameter version of perr().
*/
__dead void
perr2(const char *a, const char *b)
{
if (!force)
(void)fputs(a, stderr);
perr(b);
}
__dead void
usage(void)
{
/* Print usage and exit. */
switch (program) {
case AT:
case CAT:
(void)fprintf(stderr,
"usage: at [-bm] [-f file] [-q queue] -t time_arg\n"
" at [-bm] [-f file] [-q queue] timespec\n"
" at -c job [job ...]\n"
" at -l [-q queue] [job ...]\n"
" at -r job [job ...]\n");
break;
case ATQ:
(void)fprintf(stderr,
"usage: atq [-cnv] [-q queue] [name...]\n");
break;
case ATRM:
(void)fprintf(stderr,
"usage: atrm [-afi] [[job] [name] ...]\n");
break;
case BATCH:
(void)fprintf(stderr,
"usage: batch [-m] [-f file] [-q queue] [timespec]\n");
break;
}
exit(EXIT_FAILURE);
}
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