1 /*
2  * Copyright (c) 1987, 1993
3  *    The Regents of the University of California.  All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  * 4. Neither the name of the University nor the names of its contributors
14  *    may be used to endorse or promote products derived from this software
15  *    without specific prior written permission.
16  *
17  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27  * SUCH DAMAGE.
28  *
29  *    @(#)sysexits.h    8.1 (Berkeley) 6/2/93
30  */
31 
32 #ifndef    _SYSEXITS_H
33 #define    _SYSEXITS_H 1
34 
35 /*
36  *  SYSEXITS.H -- Exit status codes for system programs.
37  *
38  *    This include file attempts to categorize possible error
39  *    exit statuses for system programs, notably delivermail
40  *    and the Berkeley network.
41  *
42  *    Error numbers begin at EX__BASE to reduce the possibility of
43  *    clashing with other exit statuses that random programs may
44  *    already return.  The meaning of the codes is approximately
45  *    as follows:
46  *
47  *    EX_USAGE -- The command was used incorrectly, e.g., with
48  *        the wrong number of arguments, a bad flag, a bad
49  *        syntax in a parameter, or whatever.
50  *    EX_DATAERR -- The input data was incorrect in some way.
51  *        This should only be used for user's data & not
52  *        system files.
53  *    EX_NOINPUT -- An input file (not a system file) did not
54  *        exist or was not readable.  This could also include
55  *        errors like "No message" to a mailer (if it cared
56  *        to catch it).
57  *    EX_NOUSER -- The user specified did not exist.  This might
58  *        be used for mail addresses or remote logins.
59  *    EX_NOHOST -- The host specified did not exist.  This is used
60  *        in mail addresses or network requests.
61  *    EX_UNAVAILABLE -- A service is unavailable.  This can occur
62  *        if a support program or file does not exist.  This
63  *        can also be used as a catchall message when something
64  *        you wanted to do doesn't work, but you don't know
65  *        why.
66  *    EX_SOFTWARE -- An internal software error has been detected.
67  *        This should be limited to non-operating system related
68  *        errors as possible.
69  *    EX_OSERR -- An operating system error has been detected.
70  *        This is intended to be used for such things as "cannot
71  *        fork", "cannot create pipe", or the like.  It includes
72  *        things like getuid returning a user that does not
73  *        exist in the passwd file.
74  *    EX_OSFILE -- Some system file (e.g., /etc/passwd, /etc/utmp,
75  *        etc.) does not exist, cannot be opened, or has some
76  *        sort of error (e.g., syntax error).
77  *    EX_CANTCREAT -- A (user specified) output file cannot be
78  *        created.
79  *    EX_IOERR -- An error occurred while doing I/O on some file.
80  *    EX_TEMPFAIL -- temporary failure, indicating something that
81  *        is not really an error.  In sendmail, this means
82  *        that a mailer (e.g.) could not create a connection,
83  *        and the request should be reattempted later.
84  *    EX_PROTOCOL -- the remote system returned something that
85  *        was "not possible" during a protocol exchange.
86  *    EX_NOPERM -- You did not have sufficient permission to
87  *        perform the operation.  This is not intended for
88  *        file system problems, which should use NOINPUT or
89  *        CANTCREAT, but rather for higher level permissions.
90  */
91 
92 #define EX_OK        0    /* successful termination */
93 
94 #define EX__BASE    64    /* base value for error messages */
95 
96 #define EX_USAGE    64    /* command line usage error */
97 #define EX_DATAERR    65    /* data format error */
98 #define EX_NOINPUT    66    /* cannot open input */
99 #define EX_NOUSER    67    /* addressee unknown */
100 #define EX_NOHOST    68    /* host name unknown */
101 #define EX_UNAVAILABLE    69    /* service unavailable */
102 #define EX_SOFTWARE    70    /* internal software error */
103 #define EX_OSERR    71    /* system error (e.g., can't fork) */
104 #define EX_OSFILE    72    /* critical OS file missing */
105 #define EX_CANTCREAT    73    /* can't create (user) output file */
106 #define EX_IOERR    74    /* input/output error */
107 #define EX_TEMPFAIL    75    /* temp failure; user is invited to retry */
108 #define EX_PROTOCOL    76    /* remote error in protocol */
109 #define EX_NOPERM    77    /* permission denied */
110 #define EX_CONFIG    78    /* configuration error */
111 
112 #define EX__MAX    78    /* maximum listed value */
113 
114 #endif /* sysexits.h */
115