110154Sache/*
27767Sache *  panic.c - terminate fast in case of error
37767Sache *  Copyright (C) 1993  Thomas Koenig
4941Snate *
5941Snate * Redistribution and use in source and binary forms, with or without
6941Snate * modification, are permitted provided that the following conditions
7941Snate * are met:
8941Snate * 1. Redistributions of source code must retain the above copyright
9941Snate *    notice, this list of conditions and the following disclaimer.
10941Snate * 2. The name of the author(s) may not be used to endorse or promote
11941Snate *    products derived from this software without specific prior written
12941Snate *    permission.
13941Snate *
14941Snate * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR
15941Snate * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
16941Snate * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
1710154Sache * IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT,
18941Snate * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
19941Snate * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
20941Snate * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
21941Snate * THEORY OF LIABILITY, WETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22941Snate * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
23941Snate * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24941Snate */
25941Snate
2687230Smarkm#include <sys/cdefs.h>
2787230Smarkm__FBSDID("$FreeBSD$");
2887230Smarkm
29941Snate/* System Headers */
30941Snate
3154158Scharnier#include <err.h>
32941Snate#include <errno.h>
33941Snate#include <stdio.h>
34941Snate#include <stdlib.h>
35941Snate#include <unistd.h>
36941Snate
37941Snate/* Local headers */
38941Snate
39941Snate#include "panic.h"
4082973Sru#include "privs.h"
41941Snate#include "at.h"
42941Snate
43941Snate/* External variables */
44941Snate
45941Snate/* Global functions */
46941Snate
47941Snatevoid
4887208Smarkmpanic(const char *a)
49941Snate{
50941Snate/* Something fatal has happened, print error message and exit.
51941Snate */
5282973Sru	if (fcreated) {
5382973Sru		PRIV_START
54941Snate		unlink(atfile);
5582973Sru		PRIV_END
5682973Sru	}
57941Snate
5854158Scharnier	errx(EXIT_FAILURE, "%s", a);
59941Snate}
60941Snate
61941Snatevoid
6287208Smarkmperr(const char *a)
63941Snate{
64941Snate/* Some operating system error; print error message and exit.
65941Snate */
6654158Scharnier	int serrno = errno;
6754158Scharnier
6882973Sru	if (fcreated) {
6982973Sru		PRIV_START
70941Snate		unlink(atfile);
7182973Sru		PRIV_END
7282973Sru	}
73941Snate
7454158Scharnier	errno = serrno;
7554158Scharnier	err(EXIT_FAILURE, "%s", a);
76941Snate}
77941Snate
78941Snatevoid
79941Snateusage(void)
80941Snate{
8126835Scharnier	/* Print usage and exit. */
8289633Smike    fprintf(stderr, "usage: at [-q x] [-f file] [-m] time\n"
8389633Smike		    "       at -c job [job ...]\n"
8489633Smike		    "       at [-f file] -t [[CC]YY]MMDDhhmm[.SS]\n"
8589633Smike		    "       at -r job [job ...]\n"
8696701Stjr		    "       at -l -q queuename\n"
8796701Stjr		    "       at -l [job ...]\n"
8889633Smike		    "       atq [-q x] [-v]\n"
8989633Smike		    "       atrm job [job ...]\n"
9089633Smike		    "       batch [-f file] [-m]\n");
917767Sache    exit(EXIT_FAILURE);
92941Snate}
93