1 /*
2 * panic.c - terminate fast in case of error
3 * Copyright (c) 1993 by Thomas Koenig
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. The name of the author(s) may not be used to endorse or promote
12 * products derived from this software without specific prior written
13 * permission.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 */
26
27 /* System Headers */
28
29 #include <errno.h>
30 #include <stdio.h>
31 #include <stdlib.h>
32 #include <unistd.h>
33
34 /* Local headers */
35
36 #include "panic.h"
37 #include "at.h"
38
39 /* File scope variables */
40
41 static char rcsid[] = "$Id: panic.c,v 1.1 94/07/29 19:58:04 root Exp $";
42
43 /* External variables */
44
45 /* Global functions */
46
47 void
panic(a)48 panic(a)
49 char *a;
50 {
51 /* Something fatal has happened, print error message and exit.
52 */
53 fprintf(stderr, "%s: %s\n", namep, a);
54 if (fcreated)
55 unlink(atfile);
56
57 exit(EXIT_FAILURE);
58 }
59
60 void
perr(a)61 perr(a)
62 char *a;
63 {
64 /* Some operating system error; print error message and exit.
65 */
66 perror(a);
67 if (fcreated)
68 unlink(atfile);
69
70 exit(EXIT_FAILURE);
71 }
72
73 void
perr2(a,b)74 perr2(a, b)
75 char *a, *b;
76 {
77 fprintf(stderr, "%s", a);
78 perr(b);
79 }
80
81 void
usage(void)82 usage(void)
83 {
84 /* Print usage and exit.
85 */
86 fprintf(stderr, "Usage: at [-q x] [-f file] [-m] time\n"
87 " atq [-q x] [-v]\n"
88 " atrm [-q x] job ...\n"
89 " batch [-f file] [-m]\n");
90 exit(EXIT_FAILURE);
91 }
92