xref: /freebsd/include/sysexits.h (revision 5ccaab1797e5bdc404f2299ebaec1265547a4744)
1 /*-
2  * SPDX-License-Identifier: BSD-3-Clause
3  *
4  * Copyright (c) 1987, 1993
5  *	The Regents of the University of California.  All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  * 3. Neither the name of the University nor the names of its contributors
16  *    may be used to endorse or promote products derived from this software
17  *    without specific prior written permission.
18  *
19  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29  * SUCH DAMAGE.
30  */
31 
32 #ifndef	_SYSEXITS_H_
33 #define	_SYSEXITS_H_
34 
35 /*
36  *  SYSEXITS.H -- Exit status codes for system programs.
37  *
38  *	This include file attempts to categorize error exit statuses
39  *	for system programs, notably sendmail. These values exist only
40  *	for interface compatibility, and are deprecated for FreeBSD
41  *	base software.
42  *
43  *	Error numbers begin at EX__BASE to reduce the possibility of
44  *	clashing with other exit statuses that random programs may
45  *	already return.  The meaning of the codes is approximately
46  *	as follows:
47  *
48  *	EX_USAGE -- The command was used incorrectly, e.g., with
49  *		the wrong number of arguments, a bad flag, a bad
50  *		syntax in a parameter, or whatever.
51  *	EX_DATAERR -- The input data was incorrect in some way.
52  *		This should only be used for user's data & not
53  *		system files.
54  *	EX_NOINPUT -- An input file (not a system file) did not
55  *		exist or was not readable.  This could also include
56  *		errors like "No message" to a mailer (if it cared
57  *		to catch it).
58  *	EX_NOUSER -- The user specified did not exist.  This might
59  *		be used for mail addresses or remote logins.
60  *	EX_NOHOST -- The host specified did not exist.  This is used
61  *		in mail addresses or network requests.
62  *	EX_UNAVAILABLE -- A service is unavailable.  This can occur
63  *		if a support program or file does not exist.  This
64  *		can also be used as a catchall message when something
65  *		you wanted to do doesn't work, but you don't know
66  *		why.
67  *	EX_SOFTWARE -- An internal software error has been detected.
68  *		This should be limited to non-operating system related
69  *		errors as possible.
70  *	EX_OSERR -- An operating system error has been detected.
71  *		This is intended to be used for such things as "cannot
72  *		fork", "cannot create pipe", or the like.  It includes
73  *		things like getuid returning a user that does not
74  *		exist in the passwd file.
75  *	EX_OSFILE -- Some system file (e.g., /etc/passwd, /etc/utmp,
76  *		etc.) does not exist, cannot be opened, or has some
77  *		sort of error (e.g., syntax error).
78  *	EX_CANTCREAT -- A (user specified) output file cannot be
79  *		created.
80  *	EX_IOERR -- An error occurred while doing I/O on some file.
81  *	EX_TEMPFAIL -- temporary failure, indicating something that
82  *		is not really an error.  In sendmail, this means
83  *		that a mailer (e.g.) could not create a connection,
84  *		and the request should be reattempted later.
85  *	EX_PROTOCOL -- the remote system returned something that
86  *		was "not possible" during a protocol exchange.
87  *	EX_NOPERM -- You did not have sufficient permission to
88  *		perform the operation.  This is not intended for
89  *		file system problems, which should use NOINPUT or
90  *		CANTCREAT, but rather for higher level permissions.
91  */
92 
93 #define EX_OK		0	/* successful termination */
94 
95 #define EX__BASE	64	/* base value for error messages */
96 
97 #define EX_USAGE	64	/* command line usage error */
98 #define EX_DATAERR	65	/* data format error */
99 #define EX_NOINPUT	66	/* cannot open input */
100 #define EX_NOUSER	67	/* addressee unknown */
101 #define EX_NOHOST	68	/* host name unknown */
102 #define EX_UNAVAILABLE	69	/* service unavailable */
103 #define EX_SOFTWARE	70	/* internal software error */
104 #define EX_OSERR	71	/* system error (e.g., can't fork) */
105 #define EX_OSFILE	72	/* critical OS file missing */
106 #define EX_CANTCREAT	73	/* can't create (user) output file */
107 #define EX_IOERR	74	/* input/output error */
108 #define EX_TEMPFAIL	75	/* temp failure; user is invited to retry */
109 #define EX_PROTOCOL	76	/* remote error in protocol */
110 #define EX_NOPERM	77	/* permission denied */
111 #define EX_CONFIG	78	/* configuration error */
112 
113 #define EX__MAX	78	/* maximum listed value */
114 
115 #endif /* !_SYSEXITS_H_ */
116