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freebsd/usr.bin/at/panic.c

92 lines
2.2 KiB
C

/*
* panic.c - terminate fast in case of error
* Copyright (c) 1993 by Thomas Koenig
* All rights reserved.
*
* 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 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 <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
/* Local headers */
#include "panic.h"
#include "at.h"
/* File scope variables */
static char rcsid[] = "$Id: panic.c,v 1.1 1993/12/05 11:36:51 cgd Exp $";
/* External variables */
/* Global functions */
void
panic(a)
char *a;
{
/* Something fatal has happened, print error message and exit.
*/
fprintf(stderr, "%s: %s\n", namep, a);
if (fcreated)
unlink(atfile);
exit(EXIT_FAILURE);
}
void
perr(a)
char *a;
{
/* Some operating system error; print error message and exit.
*/
perror(a);
if (fcreated)
unlink(atfile);
exit(EXIT_FAILURE);
}
void
perr2(a, b)
char *a, *b;
{
fprintf(stderr, "%s", a);
perr(b);
}
void
usage(void)
{
/* Print usage and exit.
*/
fprintf(stderr, "Usage: at [-q x] [-f file] [-m] time\n"
" atq [-q x] [-v]\n"
" atrm [-q x] job ...\n"
" batch [-f file] [-m]\n");
exit(EXIT_FAILURE);
}